SMC Corporation Patent applications |
Patent application number | Title | Published |
20160136789 | CLAMP APPARATUS - A clamp apparatus including two pairs of first and second clamp arms, which are supported rotatably with respect to a body and are disposed mutually in parallel. First and second cam members including respective cam surfaces are provided on ends of the first and second clamp arms. The first cam members are pressed by rollers upon lowering of a block body under a driving action of a first cylinder that makes up a drive unit. The first clamp arms are rotated to assume a clamped state. The second cam members are pressed by rollers upon lowering of a block body under a driving action of a second cylinder of the drive unit, whereby the second clamp arms are rotated to assume a clamped state. | 05-19-2016 |
20160129559 | CLAMP APPARATUS - A clamp apparatus including first and second clamp arms, which are supported rotatably on a body, with a cover being installed to cover outer sides of the body. The cover includes openings through which portions of the first and second clamp arms are inserted and rotatably operated. An unloading tray is arranged in the body at a position below the openings in the direction of gravity. Spatter, which invades into the clamp apparatus from the openings when a welding operation is carried out on a workpiece that is clamped by the first and second clamp arms, is deposited on the unloading tray, and the spatter is eliminated by taking out the unloading tray to the exterior of the clamp apparatus. | 05-12-2016 |
20160076663 | SNAP-FIT TYPE VALVE - To provide a snap-fit type valve which can be easily attached to and removed from a piping base member. A snap-fit type valve includes a pair of mounting levers on side surfaces of a valve body so as to engage with a base member in a snap-fit manner, wherein the mounting lever includes a shoulder which extends from the valve body, an arm connected to a distal end of the shoulder and an engaging section formed at a distal end of the arm, and is elastically deformable in a direction in which a distance between the engaging sections increases, a first mounting lever which is one of the pair has the shoulder and the arm connected to each other via an arch shaped connecting section and is formed to be elastically deformable at a position of the connecting section, and a second mounting lever which is the other of the pair is formed to be deformable at a position of the shoulder, and has an operation section to elastically deform the shoulder. | 03-17-2016 |
20160076560 | FLUID PRESSURE CYLINDER - A fluid pressure cylinder includes first through fourth stepped portions provided in a multi-stepped manner on a first spigot joint of a head cover, and first through fourth stepped portions provided similarly in a multi-stepped manner on a second spigot joint of a rod cover. A cylinder tube is installed selectively on any one pair of the first through fourth stepped portions. Consequently, by preparing a new cylinder tube that differs in diameter, along with a new piston, and then installing the cylinder tube selectively on any one pair of the first through fourth stepped portions, a fluid pressure cylinder having a different bore diameter is constructed. | 03-17-2016 |
20160076559 | FLUID PRESSURE CYLINDER - In a fluid pressure cylinder, a first positioning ring is provided detachably on a first annular projection of a head cover, and a second positioning ring is provided detachably on a second annular projection of a rod cover. Further, a structure is provided in which opposite ends of a cylinder tube are inserted over and capable of being retained on outer circumferential sides of the first and second positioning rings. As a result, by preparing a new cylinder tube having a different diameter, and new first and second positioning rings, and mounting the new cylinder tube through the new first and second positioning rings, which are installed on the first and second annular projections, a fluid pressure cylinder having a different bore diameter can be obtained. | 03-17-2016 |
20160061231 | ROTARY ACTUATOR - A rotary actuator is equipped with an end cover disposed on one end surface of a cylinder main body, a first plug that is engaged with a wall surface constituting an opening on another end side of a first cylinder hole, and a second plug that is engaged with a wall surface constituting an opening on another end side of a second cylinder hole. A first port communicating with a first front cylinder chamber and a second rear cylinder chamber, and a second port communicating with a second front cylinder chamber and a first rear cylinder chamber are formed in the end cover. | 03-03-2016 |
20160038990 | PUNCH APPARATUS - A punch apparatus includes a drive unit and a driving force transmission mechanism that transmits a driving force output by the drive unit to a rod. In the driving force transmission mechanism, a cam groove is formed in a cam block connected to a piston rod, and a rotating roller, which is pivotally supported on a displacement body connected to the rod, is inserted through the cam groove. The cam groove has a first groove portion and a second groove portion, which are inclined at predetermined angles of inclination with respect to the displacement direction of the cam block. When the rod is made to descend toward the workpiece, the rotating roller moves from the second groove portion into the first groove portion, which has a small angle of inclination, whereby the driving force transmitted to the rod is boosted. | 02-11-2016 |
20160003640 | TACT MEASUREMENT DEVICE FOR ACTUATOR AND SENSOR SIGNAL DETECTING DEVICE - A detecting unit detects a first output signal and a second output signal, which are output by a first sensor and a second sensor disposed on an actuator, and outputs a first detection signal and a second detection signal to a measurement unit. Based on the first detection signal and the second detection signal, the measurement unit measures a tact time taken for a piston to move from one end to another end of a movement range. | 01-07-2016 |
20160003391 | PIPE JOINT - A pipe joint includes a joint body formed with a through hole therein along an axial direction, and having male threads and an extending shaft portion formed on one end side thereof; and a nut member formed with an insertion hole through which a tube member is inserted, and having female threads formed therein that screw-engage with the male threads. Annular projections are formed on an outer circumferential surface of the extending shaft portion, and the tube member, which is expanded in diameter, is gripped between the annular projections and an inner circumferential surface of the nut member. | 01-07-2016 |
20150369374 | GATE VALVE - To provide a gate valve in which the deterioration of a seal member due to radicals can be suppressed, and the seal member can be prevented from coming off a dovetail groove. A seal groove for attaching a seal member is formed by a first groove portion that has a rectangular cross-section and a second groove portion that is provided in the bottom wall of the first groove portion and that has a dovetail groove-like cross-section. The seal member is held in the second groove portion with part thereof protruded into the first groove portion. A valve seat that is inserted into and pulled out of the seal groove to be brought into and out of contact with the seal member is protruded from the inner surface of a partition wall in which a gate opening is provided. | 12-24-2015 |
20150362089 | FLOW RATE CONTROL DEVICE - A flow rate control device includes a needle valve mounted within a body section and is configured such that the needle valve is advanced and retracted within the body section by the rotation of a handle, thereby adjusting the flow rate of fluid flowing between a first port and a second port. The handle is surrounded by a cover to prevent a change in the adjusted flow rate. | 12-17-2015 |
20150352692 | CLAMP APPARATUS - A clamp apparatus is equipped with first and second clamp arms supported rotatably with respect to a body, and a drive unit having a pair of first and second pistons displaced under the supply of a pressure fluid. A driving force of the drive unit is transmitted to the first and second clamp arms through knuckle joints, which are connected to first and second piston rods, power-boost levers, and link arms. The power-boost levers are formed such that the length from a support pin toward the knuckle joint is longer than the length from the support pin toward the link arm. | 12-10-2015 |
20150352691 | CLAMPING DEVICE - A clamping device has a pair of first and second clamping arms rotatably supported with respect to a body, and a cam member having a cam surface is removably provided at one end of each of the first and second clamping arms. A pair of rollers pivotally supported by a block body constituting a drive unit are each in contact with the cam member. By a descent of the block body under the driving action of the drive unit, the cam surface of the cam member is pressed by the rollers, and the cam surface inclined in the displacement direction of the block body and recessed in a cross-sectional arc shape is pressed. | 12-10-2015 |
20150316396 | POSITION DETECTING SENSOR - A position detecting sensor is mounted in a sensor attachment groove that opens on a side surface of an actuator and extends in an axial direction of the actuator. The position detecting sensor includes a housing that houses a sensor main body, and a guide member inserted into the sensor attachment groove. The guide member is of a shape such that, when the guide member is inserted into the sensor attachment groove, the guide member is required to be rotated in one direction around an axis parallel with the axis of the actuator and then rotated in a direction opposite to the one direction. After the guide member has been inserted into the sensor attachment groove, attachment thereof to the sensor attachment groove is completed by application of a fastener. | 11-05-2015 |
20150316165 | THERMOELEMENT AND THERMOVALVE INCORPORATING THERMOELEMENT - A thermoelement and a thermovalve incorporating the same, in which reliable operation is achieved with a simple internal structure, and there is no risk of contaminant jamming. The thermoelement includes a casing, a mounting portion, a shaft, a heat-sensitive medium, and a seal member for drawing the shaft into the casing when the heat-sensitive medium expands. The thermovalve includes a body including a valve body linked to a shaft of a thermoelement, and a seating part on/from which the valve body can be seated/separated. | 11-05-2015 |
20150316155 | GATE VALVE - In a valve box that makes up a gate valve, a balance room is disposed on one side wall that faces toward a processing chamber. In the balance room, a first seal member is provided to surround a first pathway, and a second seal member is mounted on an outer edge of the balance room. Further, a balance port is formed in the balance room. The balance port communicates with an accommodating room that is formed in the interior of the valve box. In a valve closed state in which a valve disk is seated on a valve seat of the valve box, the pressure inside the accommodating room and the pressure inside the balance room are equalized or made uniform through the balance port. | 11-05-2015 |
20150316080 | FLUID PRESSURE CYLINDER - A fluid pressure cylinder includes a displacement block, which is displaceable on another end side of a body. A second connector of a piston rod that constitutes a cylinder unit is screw-engaged via a second cylinder hole with the displacement block. On the other hand, an end of a suction rod to which a negative pressure fluid is supplied is inserted through a cover member. In addition, by inserting a tool into a tool groove, which is formed on an end of the second connector and rotating the tool in a predetermined direction, the displacement block can be moved with respect to the piston rod in directions to approach and separate away from the body. Stated otherwise, a relative position of the displacement block with respect to the body can be adjusted. | 11-05-2015 |
20150292632 | NORMALLY CLOSED THREE-PORT VALVE - A normally closed three-port valve includes a valve member urged from a supply port side toward a main valve seat of a valve body in a valve closing direction and opened by a valve opening rod having a discharge channel. A back pressure chamber at a back of the valve member communicates with a channel on an output port side through a vent hole balancing fluid pressures acting on front and back surfaces of the valve member. The valve member includes a main body, a seat member, a securing member, and a pressing frame The seat member includes an elastic discoid sealing member, main and discharge seat surfaces, and communication holes open at a region between the main and discharge seat surfaces forming the vent hole. The securing member secures the seat member to the valve member main body. The pressing frame is at the circumference of the seat member. | 10-15-2015 |
20150240964 | SOLENOID VALVE - A solenoid valve is arranged in a flow path in which a fluid flows in both directions, and is constituted from a solenoid valve mounting portion, in which a first port and a second port are formed, and a single solenoid valve portion. A first flow rate stabilizing orifice is disposed between the first port and a valve body of the solenoid valve portion, and a second flow rate stabilizing orifice is disposed between the second port and the valve body. A bypass orifice is disposed in a bypass flow path that bypasses the first flow rate stabilizing orifice and the second flow rate stabilizing orifice. | 08-27-2015 |
20150231550 | OXYGEN CONCENTRATOR - Branch flow channels configured respectively to supply compressed air to two sieve beds respectively are provided with air supply valves each including a diaphragm valve and an electromagnetic pilot valve for driving the diaphragm valve and configured to open and close the respective branch flow channels, a pilot flow channel configured to supply pilot air to the electromagnetic pilot valves is branched from the branch flow channels, and check valves for preventing reverse flows in the respective branch flow channels are provided. | 08-20-2015 |
20150226344 | SOLENOID-OPERATED PILOT TYPE SPOOL VALVE - A pilot passage that is in communication with an input port at all times is formed inside a spool, the pilot passage and a second pressure receiving chamber on one side of a pilot piston are made to be in communication with each other at all times through a constantly open communication passage formed in a continuous portion between the spool and the pilot piston, the second pressure receiving chamber and a first pressure receiving chamber on the other side of the pilot piston are made to be in communication with each other through an opening/closing communication passage that is formed in a piston box and that is opened and closed with a pilot valve, and the pilot piston is driven and the spool is switched by turning the pilot valve on and off to supply/discharge pilot air to/from the first pressure receiving chamber. | 08-13-2015 |
20150217382 | OPENING AND CLOSING CHUCK - A guide rail is provided on an outer surface of a chuck body. A pair of fingers is disposed on the guide rail. At least one of the pair of fingers is a movable finger that is movable along the guide rail. One or two cylinder apparatuses, each of which has a rod that advances and retracts in the direction of its axial line by the action of air pressure, are provided in the chuck body. The top end of the rod extends from an end of the chuck body to the outside. An end block is attached to the top end of the rod. The end block is linked to the movable finger. | 08-06-2015 |
20150209544 | OXYGEN CONCENTRATOR - Branch flow channels configured respectively to supply compressed air to two sieve beds respectively are provided with air supply valves each including a diaphragm valve and an electromagnetic pilot valve for driving the diaphragm valve and configured to open and close the respective branch flow channels, a pilot flow channel configured to supply pilot air to the electromagnetic pilot valves is branched from the branch flow channels, and a check valve for preventing pilot air from flowing reversely is provided in the pilot flow channel. | 07-30-2015 |
20150198212 | DOUBLE-ROD TYPE SHOCK ABSORBER - A double-rod type shock absorber includes a rod, first and second pistons held by the rod, first and second piston chambers disposed on an outer side of the first and second pistons, a liquid storage chamber between the first piston and the second piston, a flow path gap formed between an outer peripheral surface of the first and second pistons and an inner peripheral surface of the liquid chamber, and first and second unidirectional flow paths which connect the first and second piston chambers with the liquid storage chamber, wherein, during reciprocating motion of the rod, the unidirectional flow path located on a front side in a movement direction of the rod is closed, and the unidirectional flow path located on a back side in the movement direction of the rod is opened. | 07-16-2015 |
20150152934 | BI-DIRECTIONAL SHOCK ABSORBING DEVICE - A bidirectional shock absorber includes a cylinder housing including a liquid chamber, a shock-absorbing mechanism located inside the liquid chamber and supported by a rod sticking out of the cylinder housing. The shock-absorbing mechanism includes a pair of pistons located in the liquid chamber and attached to the rod on the respective sides of a liquid storage chamber constituting an accumulator, resistance paths formed between an outer circumferential surface of the pistons and an inner circumferential surface of a piston chamber, to apply flow resistance to the liquid, and unidirectional flow paths formed along the respective pistons and configured to block the liquid flow toward the liquid storage chamber when the corresponding piston is pressed toward the piston chamber, but to permit the liquid to flow in the opposite direction. | 06-04-2015 |
20150129791 | VALVE APPARATUS - A valve apparatus is equipped with a diaphragm disposed displaceably in the interior of a body, and which opens and closes a fluid passage by separating away from and being seated on a valve seat, a conductive shaft arranged in a through hole that is formed substantially in the center of the diaphragm, and a grounding member for grounding the conductive shaft. Each of the body and the diaphragm is formed from a non-conductive material, and one end surface of the conductive shaft is exposed to the fluid passage. | 05-14-2015 |
20150124368 | IONIZER AND CONTROL METHOD THEREOF - An ionizer includes a polarity output unit that can selectively output, to a discharge unit, one of a first polarity pattern where the polarity output unit applies a positive direct-current voltage to a first group of discharge needles and applies a negative direct-current voltage to a second group of discharge needles and a second polarity pattern where the polarity output unit applies a negative direct-current voltage to the first group of discharge needles and applies a positive direct-current voltage to the second group of discharge needles and a polarity control unit configured to control the first and second polarity patterns. The polarity control unit includes a current detection unit configured to detect respective direct currents passing through the first group of discharge needles and the second group of discharge needles. When the difference between the current values of the first group of discharge needles and the second group of discharge needles detected by the current detection unit becomes greater than a predetermined value, the polarity control unit switches between the first and second polarity patterns. | 05-07-2015 |
20150121899 | TEMPERATURE ADJUSTMENT APPARATUS - A drive circuit of a temperature adjustment apparatus drives a Peltier element at a desired output amount. A state detector detects an electrical state of the Peltier element. A control circuit calculates a desired output amount based at least on the electrical state of the Peltier element, determines a control quantity for driving the Peltier element at the desired output amount, and controls the drive circuit at the control quantity. | 05-07-2015 |
20150109714 | IONIZER AND CONTROL METHOD THEREOF - A polarity control unit includes a flag storage unit that stores any one of a first polarity pattern by which a positive direct-current voltage is applied to discharge needles in a first group and a negative direct-current voltage is applied to discharge needles in a second group and a second polarity pattern by which a negative direct-current voltage is applied to the discharge needles in the first group and a positive direct-current voltage is applied to the discharge needles in the second group, a flag update unit that rewrites one flag stored in the flag storage unit to another flag when a power switch is turned on from its off state or is turned off from its on state, and a command unit that commands a polarity pattern corresponding to the flag stored in the flag storage unit to be output from the polarity output unit. | 04-23-2015 |
20150082913 | ULTRASONIC FLOW METER - An ultrasonic flow meter is equipped with a housing through which a liquid flows, and a pair of detection units disposed on opposite ends of the housing and including acoustic wave transmitting and receiving units capable of transmitting and receiving acoustic wave signals. Paired connecting plugs are connected respectively to both ends of the housing. In addition, a supply passage of one of the connecting plugs, a conduit of the housing, and a discharge passage of another of the connecting plugs are disposed on a straight line. A liquid supplied to the supply passage flows through a passage of the conduit and to the discharge passage. Consequently, a flow rate of the liquid is measured based on the propagation time of the acoustic wave signals, which are transmitted and received by the acoustic wave transmitting and receiving units. | 03-26-2015 |
20150082912 | ULTRASONIC FLOW METER - An ultrasonic flow meter is equipped with a housing through which a liquid flows, and a pair of detection units disposed on opposite ends of the housing and including acoustic wave transmitting and receiving units capable of transmitting and receiving acoustic wave signals. Vibration generating mechanisms having vibration generating bodies arranged perpendicularly to the detection units are disposed on an outer circumferential side of the housing. In addition, when the flow rate of the liquid that flows through the housing is measured, the vibration generating bodies are energized and made to vibrate, such that gas bubbles, which adhere to cover members in contact with the liquid and that cover the acoustic wave transmitting and receiving units, are removed by the vibrations. | 03-26-2015 |
20150068323 | VORTEX FLOWMETER - An installation hole, in which a detector is accommodated, is formed in a substantially central portion of a body of a vortex flowmeter. A first ring is formed on an annular wall that forms a boundary between a first aperture portion and a second aperture portion of the installation hole. In the detector, a detecting element made up from a piezoelectric element is accommodated in a holder. A pair of second rings is formed on the outer circumferential surface of the holder. By inserting the detector in the installation hole, the second rings are placed in sliding contact with the inner circumferential surface of the installation hole, and the first ring comes into abutment with a boundary region of the holder. Consequently, a seal is formed between the detector and the body by the first and second rings. | 03-12-2015 |
20150059898 | DOUBLE SOLENOID VALVE WITH DETENT MECHANISM - A detent mechanism that increases a holding force for the valve member having two switch positions when the valve member is in each of the switch positions includes a ring shaped housing groove which is formed on one of an inner periphery of the valve hole and an outer periphery of the valve member and an annular elevated portion which is formed on the other, and a ring shaped detent member housed in the housing groove, the housing groove includes right and left groove side walls which extend in parallel to each other, and a groove bottom wall, the detent member is made of a material having rubber elasticity and includes right and left side walls which face the groove side walls of the housing groove, and a protruding portion which extends from the housing groove, and a locking section which elastically locks the protruding portion of the detent member in the two switch positions is formed on both ends of the elevated portion in the axis direction. | 03-05-2015 |
20150059893 | FIVE-PORT SWITCHING VALVE WITH RESIDUAL PRESSURE EXHAUST VALVE - A switching valve includes main valve constituted of a five-port electromagnetic switching valve settable to a closed-center position, and a residual pressure exhaust valve including an exhaust valve cavity communicating with a supply port of the main valve and two exhaust ports, two residual pressure discharge flow paths respectively communicating with the exhaust ports, two exhaust valve elements placed inside the exhaust valve cavity and driven by pressure air from the supply port to open and close the residual pressure discharge flow paths, and a release spring that biases the exhaust valve element in a direction to open the residual pressure discharge flow paths. While the pressure air is not supplied into the exhaust valve cavity through the supply port, the exhaust valve element opens the residual pressure discharge flow paths so as to discharge residual pressure from the exhaust port, and when pressure air is supplied into the exhaust valve cavity the exhaust valve element closes the residual pressure discharge flow path, and hence the residual pressure is not discharged from the exhaust port. | 03-05-2015 |
20150052917 | CONSTANT TEMPERATURE LIQUID CIRCULATION APPARATUS AND TEMPERATURE ADJUSTMENT METHOD FOR CONSTANT TEMPERATURE LIQUID - To enable temperature adjustment of constant temperature liquid and pressure equalizing operations to be performed with a simple circuit configuration using one electronic expansion valve. On/off of a compressor of a refrigeration circuit is controlled in accordance with the temperature of a constant temperature liquid, and when the compressor is on an electronic expansion valve is controlled so as to change the opening angle thereof in a restricted opened state smaller than when full-open, thereby adjusting the flow rate of coolant and adjusting the temperature of the constant temperature liquid, while when the compressor is turned off the opening angle of the electronic expansion valve is set to a pressure equalizing angle which is greater than the opening angle when in the controlled opened state, and the pressure equalizing angle is maintained a certain amount of time, thereby doing away with pressure difference between a high pressure portion and low pressure portion within the refrigeration circuit, thus doing away with overload when turning the compressor on. | 02-26-2015 |
20150014556 | NON-SLIDING GATE VALVE - A parallel movement mechanism including guide grooves and guide rollers and a perpendicular movement mechanism including cam grooves and cam rollers are interposed between a drive rod of an air cylinder and a valve assembly. By moving the valve assembly parallel to valve seat surfaces formed around a pair of openings of a valve casing with the parallel movement mechanism, and then moving it perpendicularly to the valve seat surfaces with the perpendicular movement mechanism, valve seal members of valve elements can be brought into and out of contact with the valve seat surfaces, and the openings can be selectively opened and closed. | 01-15-2015 |
20150013145 | CHUCKING DEVICE AND CHUCKING METHOD FOR MACHINE TOOL - In a chucking device and a chucking method for a machine tool which grip a workpiece that serves as a target object to be processed by the machine tool, a first cylinder and a second cylinder are controlled based on the position of a piston of the first cylinder detected by a length measuring sensor, and the position of a piston of the second cylinder detected by a length measuring sensor. In this manner, the workpiece is gripped by respective gripping members at a predetermined position, i.e., the axial center, of a chuck main body. | 01-15-2015 |
20150007713 | FAULT DETECTION SYSTEM FOR ACTUATOR - A failure detecting device of a fault detection system includes a detection time calculator, which calculates a stroke time T3 required for a piston to travel between one end and another end of an actuator based on detection signals from a first sensor and a second sensor, a statistical processor that performs a predetermined statistical calculation with respect to the stroke time T3, and a fault response detector, which detects whether or not a fault of the actuator has occurred based on a processing result of the statistical processor. | 01-08-2015 |
20150007599 | CONSTANT-TEMPERATURE LIQUID CIRCULATION APPARATUS AND OPERATION METHOD THEREOF - An operation method of a constant-temperature liquid circulation apparatus includes: performing control such that the fan is not activated, or is activated to maintain a minimum rotation speed when a refrigerant pressure measured by the pressure sensor does not reach a reference pressure region after the compressor is activated; controlling the refrigerant pressure by performing inverter control on a rotation speed of the fan when the refrigerant pressure reaches the reference pressure region; and controlling a rotation speed of the compressor to be reduced from a high rotation speed which is a rotation speed during a steady operation while maintaining the rotation speed of the fan at a maximum rotation speed when the refrigerant pressure continues to further rise and exceeds an upper limit value even after the rotation speed of the fan reaches the maximum rotation speed. | 01-08-2015 |
20140352526 | FLUID PRESSURE CYLINDER - A fluid pressure cylinder includes a displacement member, which is displaceable on an end side of a body, and a connecting body, which is connected to a piston rod of a cylinder unit, is inserted via a spring in a block body of the displacement member. A suction rod is connected substantially in parallel with the connecting body and a buffer rod connected to the connecting body. In addition, in a state where downward displacement of the block body is restricted, when additional loads are applied, the buffer rod is displaced relatively with respect to the block body in opposition to an elastic force of the spring, whereby an interval in a radial direction between a bushing and the buffer rod is enlarged. | 12-04-2014 |
20140299799 | SPOOL VALVE - A spool valve is equipped with a valve body, a spool arranged in a valve chamber such that the spool can be displaced between a first position, which allows communication between an inlet port and an outlet port, and a second position, which blocks communication between the inlet port and the outlet port, a pilot valve mechanism disposed in the valve body and which causes displacement of the spool along an axial direction under the pressure of a pilot fluid that acts on one end surface of the spool, and a spring that biases the spool toward one side in the axial direction. | 10-09-2014 |
20140298920 | ELECTROMAGNETIC FLOWMETER - An electromagnetic flowmeter includes a yoke of a solenoid unit, which is accommodated in the interior of a body. The yoke is U-shaped in cross section, with a pipe unit including a measurement conduit being arranged in the interior of the yoke. One end portion and another end portion of the measurement conduit are formed with true circular shapes in cross section, whereas an intermediate portion thereof between the one end portion and the other end portion is formed with an oval shape in cross section. On the measurement conduit, cross-sectional straight line portions thereof, which are formed in the intermediate portion, are arranged in a vertical direction. Coils of the solenoid unit and excitation plates are arranged in facing relation to the cross-sectional straight line portions. | 10-09-2014 |
20140266167 | POSITION SENSOR ATTACHMENT BAND - A position sensor attachment band configured to secure a position sensor on an outer periphery of the cylinder tube includes a thin plate band, the thin plate band has one or more projections that project from the inner peripheral surface of the thin plate band which are disposed at least at the end positions among the end positions located in proximity to one end and the other end of the thin plate band in the length direction and the intermediate position, and the projections are disposed at positions completely within the width of the thin plate band and accordingly at positions completely away from the both side edges of the thin plate band on both sides in the width direction, and the projections are symmetrically arranged with respect to the center in the length direction of the thin plate band. | 09-18-2014 |
20140208936 | OSCILLATING ACTUATOR - To provide an oscillating actuator which is capable of easily changing an oscillation start position of a shaft. An oscillating actuator includes an actuator main body | 07-31-2014 |
20140197341 | HIGH-FREQUENCY ON-OFF VALVE - A high-frequency on-off valve includes a valve chamber communicating with an input flow path, output orifices opening into the valve chamber, a plate-shaped valve member disposed within the valve chamber such that the valve member is movable into and out of contact with output valve seats surrounding the output orifices, and an electromagnetic operating section that opens and closes the valve member. The high-frequency on-off valve opens and closes the plurality of output orifices by bringing the valve member into and out of contact with the output valve seats by utilizing an effect of an electromagnetic attraction force produced by the electromagnetic operating section and an effect of fluid pressure within the valve chamber. The valve has the plurality of output orifices that are long-hole-shaped. | 07-17-2014 |
20140157981 | FLUID PRESSURE CYLINDER - A piston is provided displaceably in the interior of a cylinder tube that constitutes a fluid pressure cylinder, and a piston cover made from an elastic material is disposed so as to cover one end surface of the piston. The piston cover comprises a main body portion confronting a head cover of the cylinder tube, a guide portion covering an outer circumferential surface of the piston and disposed in sliding contact with an inner circumferential surface of a cylinder hole, and a hook portion folded toward an inner circumferential side with respect to the guide portion. Upon displacement of the piston toward the head cover, shocks are absorbed by abutment of the main body portion against the head cover. When the piston is displaced along the cylinder tube, the guide portion serves to guide the piston in the axial direction by sliding contact with the cylinder hole. | 06-12-2014 |
20140130907 | VACUUM PRESSURE REGULATION SYSTEM - A valve main body including a valve member that opens and closes a valve seat is associated with a fluid pressure driving unit including a pressure-receiving member (piston) that drives the valve member, a valve aperture adjusting unit that sets the aperture of the valve member, an electromagnetic valve unit that supplies and discharges a pilot fluid to and from the fluid pressure driving unit, and a controller that controls the aperture of the valve member. The controller controls the aperture of the valve member by controlling the position of the pressure-receiving member, such that the vacuum chamber attains a predetermined target pressure, and monitors a difference between an actual pressure in the vacuum chamber obtained from the pressure sensor and the target pressure, and announces abnormality in the case where the difference deviates from a tolerance range. | 05-15-2014 |
20130263733 | POSITION DETECTING DEVICE FOR FLUID PRESSURE CYLINDER - A sensor holding member holding a position sensor and an attachment member that attaches the sensor holding member to a cylinder tube are formed separately. The sensor holding member is placed with a sensor attachment groove oriented in the direction of the axis of the cylinder tube and in contact with the outer surface of the cylinder tube. The attachment member is placed so as to straddle the sensor holding member. By tightening an attachment screw and fixing the attachment member with an attachment band, the sensor holding member is pressed against and fixed to the outer surface of the cylinder tube by the attachment member. Loosening the attachment screw allows the sensor holding member to be displaced relative to the attachment member in the direction of the axis of the cylinder tube. | 10-10-2013 |
20130193358 | ELECTROMAGNETIC VALVE EQUIPPED WITH MANUAL OPERATION ELEMENT INCLUDING SAFETY DEVICE - On an outer surface of an electromagnetic valve body, a manual operation element is provided slidably horizontally, and a slide member is provided slidably in a direction orthogonal to a sliding direction of the manual operation element. The slide member is movable to a lock position and a non-lock position. At the lock position, the slide member is retained by the manual operation element to lock the manual operation element at a non-switch position. At the non-lock position, the slide member unlocks the manual operation element to allow the manual operation element to move toward a switch position. | 08-01-2013 |
20130112906 | NON-SLIDING GATE VALVE - A parallel movement mechanism including guide grooves and guide rollers and a vertical movement mechanism including cam grooves and cam rollers are interposed between a drive rod and a valve shaft of an air cylinder, and a valve seal of a valve plate is moved vertically toward and away from a valve seat surface to open and close the opening by moving the valve shaft in parallel to the valve seat surface by the parallel movement mechanism and moving the same vertically with respect to the valve seat surface by the vertical movement mechanism. | 05-09-2013 |
20130056669 | SINGLE-ACTING DIRECTIONAL CONTROL VALVE - A valve rod is accommodated in a valve chest which is in communication with a plurality of ports, the valve rod has a round poppet valve disposed between a supply valve seat and a discharge valve seat, an annular protruding wall is formed on a side surface of the poppet valve, the protruding wall has a circumference surface including a cylindrical surface extending in parallel with an axial line of the valve chest and an inclined surface which enables the base end of the cylindrical surface to be smoothly continuous with the side surface of the poppet valve, and the cylindrical surface has a diameter smaller than that of the poppet valve and larger than that of a narrow portion of the valve rod. | 03-07-2013 |
20130019958 | ENERGY-SAVING VALVE - An energy-saving valve includes a spool-driving unit which changes the position of a spool to a position at which compressed air is discharged from a first output port without pressure control and includes a pressure control unit which changes the position of the spool to a position at which compressed air is discharged from a second output port in a predetermined pressure level due to pressure control. The pressure control unit includes a pressure control piston, a pressure-receiving surface which enables air pressure in the second output port to act on the pressure control piston, a cylinder chamber, a pressure control channel, and an elastic member which applies biasing force to the pressure control piston in a direction opposite to the action of air pressure on the pressure-receiving surface to determine pressure. | 01-24-2013 |
20130015027 | HYDRAULIC SHOCK ABSORBERAANM Miyasato; EikoAACI Tsukubamirai-shiAACO JPAAGP Miyasato; Eiko Tsukubamirai-shi JPAANM Hiroki; AkiraAACI Tsukubamirai-shiAACO JPAAGP Hiroki; Akira Tsukubamirai-shi JPAANM Kaneko; JunyaAACI Tsukubamirai-shiAACO JPAAGP Kaneko; Junya Tsukubamirai-shi JPAANM Takakuwa; YoujiAACI Tsukubamirai-shiAACO JPAAGP Takakuwa; Youji Tsukubamirai-shi JPAANM Monden; KengoAACI Tsukubamirai-shiAACO JPAAGP Monden; Kengo Tsukubamirai-shi JPAANM Ishikawa; MasayukiAACI Tsukubamirai-shiAACO JPAAGP Ishikawa; Masayuki Tsukubamirai-shi JPAANM Kessoku; MarikoAACI Tsukubamirai-shiAACO JPAAGP Kessoku; Mariko Tsukubamirai-shi JP - A hydraulic shock absorber that can reduce outflow amount of oil by maximally removing an oil film attached to an outer periphery of a rod and that can achieve securement of high slidability between the rod and a rod packing and prevention of wear of the rod packing. A rod packing interposed between an outer periphery of a rod and an inner periphery of a rod-side end wall includes a first lip for scrapping off an oil film attached to the outer periphery of the rod, and a ring-shaped grease holding member for supplying holding grease to the outer periphery of the rod. The grease holding member is in contact with the outer periphery of the rod at a position closer to a rod distal end than the first lip. | 01-17-2013 |
20120292544 | SOLENOID FOR ELECTROMAGNETIC VALVE - A solenoid for an electromagnetic valve, which reduces a magnetic resistance resulting from a space between a movable iron core and a magnetic plate. A magnetic plate provided around a movable iron core forming a magnetic path between a magnetic frame and the movable iron core includes an extending portion extending toward a stationary iron core along a surface of the movable iron core. An area Sa of an opposing portion of an outer periphery of the movable iron core opposing an inner peripheral surface of the magnetic plate and a sectional area Sb of the movable iron core satisfy K=Sa/Sb, K>1. An axial length h of the inner peripheral surface of the magnetic plate and a length L from an attracting-force acting surface of the movable iron core located at a position separate from the stationary iron core to a front end portion of the magnetic plate satisfy 2≦K≦[value of K when h=L]. | 11-22-2012 |
20120286178 | VACUUM VALVE BELLOWS - A bellows is disposed to separate a main flow path that is opened or closed by a valve member coming into contact with or moving away from a valve seat from a driving part for driving the valve member via a rod so as to surround the rod. The bellows is formed by providing ring-shaped valley portions swelling inward of a metal pipe and ring-shaped peak portions swelling outward of the metal pipe alternately and continuously in a peripheral wall of the metal pipe in the axial direction of the metal pipe. Valley R/peak R, which is the ratio of valley R to peak R, is in the range of 1.15 to 1.70, where valley R is the radius of curvature of the valley portions in cross section, and peak R is the radius of curvature of the peak portions in cross section. | 11-15-2012 |
20120267556 | GATE VALVE - In a gate valve including a valve plate connected to a valve plate mounting portion of at a tip end of a valve rod with a connecting plate and configured to open and close a communicating hole of a valve box with the valve plate, the valve plate includes a mounting hole, a joint flat surfaces coming into press-contact with each other, the valve rod includes a depressed-shaped joint shoulder portion, the joint shoulder portion is formed with an inclined surface configured to guide the valve plate in the direction in which the joint flat surfaces are brought into press-contact with each other, and the coupling plate couples the valve plate and the valve rod with each other. | 10-25-2012 |
20120255352 | CYCLICALLY LIQUID FEEDING APPARATUS - An outer tank and an inner tank having liquid at different temperatures, and a load are connected to each other via outer and inner tank liquid circulating channels and a valve unit. A first opening-and-closing valve is connected to a first bypass flow-channel connecting an outer tank feed channel and an inner tank feedback channel, a second opening-and-closing valve is connected to a second bypass flow channel connecting an inner tank feed channel and an outer tank feedback channel to detect the liquid level of the liquid in the outer tank and the liquid level of the liquid in the inner tank by a liquid level sensor. The liquid levels are adjusted by selectively opening the first opening-and-closing valve and the second opening-and-closing valve when the liquid levels in both tanks become uneven in the process of cyclically feeding the liquid from the tanks to the load. | 10-11-2012 |
20120247891 | HYDRAULIC SHOCK ABSORBER - Provided is a shock absorber enabling stable stop by damping at a terminal of a stroke and covering demanded impact-absorbing models. The shock absorber has a piston chamber, a start part for piston movement, a decelerating part, and an end part for stopping the piston. The start part forms a curve to provide a diameter larger than a virtual tapered surface formed within a stroke range of the piston and to be outward to a central axis of the piston chamber. In the decelerating part, a variation of diameter reduction is increased with the result that the diameter becomes smaller than the tapered surface, and a curve is formed so the change in variation of diameter reduction reaches the maximum variation point and turns negative. In the end part, the variation of diameter reduction is decreased with the result that a curve which enables piston stopping by damping is formed. | 10-04-2012 |
20120160093 | AIR CYLINDER - An air cylinder having a simple and effective configuration to reduce the axial length and provide ease of processing. A sliding bearing that guides a piston rod is disposed at a position adjacent to a groove in which a rod packing is fitted. One end of the sliding bearing serves as the side wall of the groove and prevents displacement of the rod packing. The other end of the sliding bearing extends so as to cover part of a yenta of a first port. An orifice having a sectional area smaller than that of the yenta is formed at the position of the yenta by the sliding bearing. | 06-28-2012 |
20120160090 | AIR CYLINDER - An air cylinder that can prevent foreign substances from intruding inside in an environment where fine foreign substances such as dust are scattered. The air cylinder includes, in a through hole of a rod cover, an annular lubricator impregnated with a lubricant so as to supply the lubricant to the rod and a liquid-absorptive annular dust wiper not containing a lubricant and provided for preventing fine foreign substances such as powder stuck to the rod from intruding inside. The lubricator and the dust wiper are disposed air-tightly and slidably in contact with the rod, and the dust wiper is located closer to a leading end of the rod than the lubricator. | 06-28-2012 |
20120085953 | MULTIPLE ELECTROMAGNETIC VALVE - A multiple electromagnetic valve includes a main valve portion in which four or more valve holes are formed parallel to each other inside a valve body, and a spool for switching flow paths is placed in each valve hole, and a pilot operating portion having solenoid-operated pilot valves that drive the spools with pilot fluid. The valve holes are disposed inside the valve body in two upper and lower tiers. A plurality of valve holes belongs in each of the upper tier and lower tier. The valve holes in the upper tier and the valve holes in the lower tier occupy different positions in the width direction of the valve body. The valve holes in the upper tier and the valve holes in the lower tier partially overlap each other in the plan view of the valve body. | 04-12-2012 |
20120025116 | MULTIPLE MANIFOLD VALVE - A plurality of electromagnetic valves are mounted on a manifold base, a single top cover that covers the plurality of electromagnetic valves as a whole is mounted, the top cover is screwed into the manifold base in a state in which a positioning pin on a lower end of a peripheral wall is fitted into a small hole in the manifold base, a reinforcing rib is formed on an inner face of a top plate of the top cover, the rib is arranged so that the rib is brought into contact with the upper faces of the electromagnetic valves all the time or is brought into contact with the electromagnetic valves when the top cover is elastically deformed by a pressing force from the outside acting on the top cover. | 02-02-2012 |
20110311837 | COVERING MEMBER FOR PREVENTING EROSION - There is provided a covering member for preventing erosion that has a high erosion resistance, is resistant to repeated thermal shocks so as to have a long life, and has a particular color allowing visual inspection of the surface layer for degradation. | 12-22-2011 |
20110290340 | VACUUM VALVE - A cartridge heater is accommodated in a heater bore in a shaft connected to a valve element, and a heating portion provided at an end portion of the cartridge heater is located at a joint portion of the shaft and the valve element. At the joint portion, a heat receiving groove and a pressurizing portion communicating with the heater bore are provided at a position between a surface of the valve element and that of the shaft located so as to oppose and to contact each other. The heat receiving groove includes an arcuate groove portion of the same radius as that of the heating portion of the cartridge heater, and the heating portion is pressed by the pressurizing portion to enter into plane-to-plane contact with an inner circumferential surface of the arcuate groove portion of the heat receiving groove, upon fastening the valve element and the shaft to each other with a bolt, with the heating portion located between the heat receiving groove and the pressurizing portion. | 12-01-2011 |
20110193000 | DECOMPRESSION SWITCHING VALVE - To provide a decompression switching valve that enables reduction in the running cost and initial cost, by saving of air consumption and simplifying and downsizing of equipment. A decompression switching valve includes one valve hole, a main valve body having air supply ports, a first output port, a second output port, and an air exhaust port which are communicated with the valve hole, and a first spool and a second spool which are slidably provided in the valve hole, adjacent to each other, wherein the first spool forms a switching valve section that selectively connects the first output port to an air supply port or the air exhaust port, and wherein the second spool forms a decompression valve section that reduces the pressure of compressed air having been input from the air supply port and outputs the pressure from the second output port. | 08-11-2011 |
20110180979 | STOPPER WITH DAMPER - A damper hole having a large-diameter section is formed inside a body which is made of metal. A flange which fits in the large-diameter section is formed in a damper which is made of rubber and is received in the damper hole. The flange defines a cushion chamber in the large-diameter section. A gap for letting air restrictively discharge from the cushion chamber is formed between an outer periphery of the flange and an inner periphery of the large-diameter section. Motion energy of a moving object colliding with the damper is absorbed by both elasticity produced by the compressed damper and an air cushion effect produced by the flange and the cushion chamber. | 07-28-2011 |
20110126703 | FLUID PRESSURE CYLINDER WITH POSITION DETECTING DEVICE - An elongated attachment hole is formed on a housing containing a magnetic sensor, a thin plate-like hole cover is placed on the housing to cover the elongated attachment hole, a single attachment bolt is disposed in such a manner as to go through the hole cover and the elongated attachment hole, and the attachment bolt is screwed in a screw hole of a cylinder body, thereby fixation of the housing on the cylinder body and fixation of the hole cover on the housing are performed at the same time by using the single attachment bolt. | 06-02-2011 |
20110089354 | GATE VALVE - Between a driving base operated by an air cylinder and a lever member fixed to a valve shaft integral with a valve plate, a connecting mechanism for connecting the driving base and a lever member, capable of displacement, and a cam mechanism for tilting the lever member are interposed, and a stopper mechanism for stopping the lever member at an opposing position of the valve plate or a full-open position, and after the lever member is stopped by the stopper mechanism at the opposing position or the full-open position, the lever member is tilted by the cam mechanism so as to incline the valve plate and to press a valve seal to a valve seat portion or a wall face in the periphery of an opening. | 04-21-2011 |
20110068573 | PIPE JOINT - [Object] A pipe joint is to be provided that prevents a release bush from being accidentally pressed, and that inhibits the tube from being removed from the pipe joint unless a worker uses a predetermined tool with the intention of removing the tube from the pipe joint. | 03-24-2011 |
20110062704 | PIPE JOINT - In a pipe joint, a release bush includes a cylindrical portion and a flange portion for pressing, provided along an outer edge of the cylindrical portion. A movable portion including a part of the flange portion and a part of the cylindrical portion is formed to move with respect to a main portion including the remaining part of the flange portion and the remaining part of the cylindrical portion, via an elastically deformable portion. The cylindrical portion of the movable portion can be moved to be aligned with the cylindrical portion of the main portion along the same circumference, by an external operating force exerted on the movable portion, while the movable portion remains in a position opposing a main body of the pipe joint when an operating force is not applied, thereby inhibiting the release bush from being pressed into a chuck despite the flange portion being pressed. | 03-17-2011 |
20100308480 | HUMIDITY CONDITIONING AIR SYSTEM FOR PNEUMATICALLY DRIVEN DEVICE - An air system in which the supply air from a compressed air source is supplied to a pneumatically driven device through a pneumatic line, including humidity conditioning tubes used for the whole or a part of the pneumatic line. This humidity conditioning tube includes a polymer material having moisture selective permeability in both inward and outward directions according to steam partial pressure in and outside thereof, and the supply air supplied to the pneumatically driven device through the tube is dehumidified or humidified by this humidity conditioning tube. An air system can suppress generation of mist or the like in supply air without shortening a life of a device caused by supply of low dew-point air to the pneumatically driven device. | 12-09-2010 |
20100307876 | AIR CUSHION MECHANISM OF PNEUMATIC CYLINDER - A body-side cushion structural body attached to a body and a piston-side cushion structural body integrally moving with a piston are disposed outside the body, a cushion rod is disposed on either one of the cushion structural bodies, while a rod fitting hole is disposed in the other cushion structural body, a cushion packing is disposed at a spout portion of the rod fitting hole, and moreover, a throttle valve that discharges air in the rod fitting hole to the outside with flow-rate adjustment is disposed so as to configure an air cushion mechanism that stops the piston in a buffering manner. | 12-09-2010 |
20100258210 | SPOOL-TYPE SELECTOR VALVE - A tapered face whose hole diameter is gradually reduced toward a riding-on direction is formed at a valve-seat end of a supply valve seat or an discharge valve seat where a seal member of a spool slides and rides onto from a side with a low fluid pressure to a side with a high fluid pressure, while the other valve-seat end is kept as a cylindrical surface with a constant hole diameter, by which two tapered faces are formed in a valve hole, and an inner diameter of a portion located between the two tapered faces of the valve hole is formed equal to an inner diameter of a small diameter end of the tapered face, while an inner diameter of a portion located on a hole end side rather than the two tapered faces of the valve hole is formed equal to or larger than the inner diameter of a large diameter end of the tapered face. | 10-14-2010 |
20100186941 | Water-cooled constant temperature liquid circulating device and method of controlling temperature of circulating liquid with the same - A constant temperature liquid circulating device includes a heat absorption tube through which flows heat absorbing liquid, a tank containing a constant temperature circulating liquid and a heat exchange portion of the heat absorption tube, a conduit which circulates the constant temperature circulating liquid in the tank to an external device and a flow regulator. The flow regulator includes an electric proportional valve for controlling a flow amount of heat absorbing liquid in the heat absorption tube, an electromagnetic valve for delivering the heat absorbing liquid to the heat exchange portion, and a controller which regulates the flow of the heat absorbing liquid through the electric proportional valve not to be less than a low flow limit value, and which regulates the flow of heat absorbing liquid through the electromagnetic valve so as to adjust the circulating liquid to a predetermined temperature. | 07-29-2010 |
20100181510 | SELECTOR VALVE DEVICE - On a valve body of a selector valve mounted on a base member, a bolt insertion hole extending crossing a valve hole within a width of the valve body is formed, a mounting bolt is inserted into the bolt insertion hole so as to cross the valve hole and the valve member, and a distal end of the mounting bolt is screwed into a screw hole of the base member so as to fix the selector valve to the base member, while on the valve member, in order to avoid contact between the valve member and the mounting bolt, a hole-shaped or recess-shaped escape portion extending longer in an operating direction of the valve member is formed, and the mounting bolt is inserted through the escape portion. | 07-22-2010 |
20100148101 | PARALLEL TYPE VALVE ASSEMBLY - Two connected valve units each formed by serially connecting plural electromagnetic valves in a direct abutment state are disposed in parallel between two end blocks. The two end blocks are tightened with plural connecting bolts disposed therebetween so as to directly clamp and fix the two connected valve units from both sides in the serial connection direction of the electromagnetic valves. One of the end blocks is provided with a power supply connector, and the other is provided with an air inlet port and a discharge port. | 06-17-2010 |
20100140031 | HYDRAULIC SHOCK ABSORBER - In the inside of a cylinder tube, there are provided a piston chamber and an adjusting chamber communicating each other, and these both chambers are filled with oil in a pressurized condition, and further, there are provided a piston moving in an axial direction in the piston chamber and a rod coupled to the piston. An elastic member is located in the inside of the adjusting chamber in a state that a reservoir tank is formed in the adjusting chamber by being compressed by pressurizing force of the oil, and impact is absorbed in such a way that the elastic member is caused to extend and contract by the oil flowing in/flowing out the reservoir tank by movement of the rod. | 06-10-2010 |
20100107674 | REFRIGERATION AIR DRYER - A refrigeration air dryer outputs dehumidified air dehumidified by a cooling operation using a low-temperature refrigerant after the temperature thereof has been raised by exchanging heat with a high-temperature refrigerant at a reheater. The refrigeration air dryer includes a temperature sensor which detects the temperature of secondary air in the outlet pipe, valve means which adjusts the flow rate of the dehumidified air or the flow rate of the refrigerant flowing through the reheater, and a temperature controller which adjusts the flow rate of the dehumidified air or the flow rate of the refrigerant by controlling the valve means based upon the detected temperature detected by the temperature sensor, thereby maintaining the temperature of the secondary air at a constant level. | 05-06-2010 |
20100096033 | FLUID PRESSURE EQUIPMENT PROVIDED WITH LOW SLIDING PACKING - A packing attached to a spool of a spool valve has a ring-shaped inner-peripheral seal portion provided with an inner-peripheral seal face, a ring-shaped outer-peripheral seal portion provided with an outer-peripheral seal face, and an intermediate flexible portion interposed between the both portions and curved by an action of a fluid pressure, the intermediate flexible portion has both right and left flat side faces parallel with each other, a thickness of the intermediate flexible portion is formed smaller than the inner-peripheral seal portion and the outer-peripheral seal portion, and a ring width of the intermediate flexible portion in a packing radial direction is formed equal to or larger than the thickness. | 04-22-2010 |
20100083683 | REFRIGERATION AIR DRYER - A refrigeration air dryer, which dehumidifies compressed air by cooling the air at a cooler by exchanging heat with a refrigerant, includes a first reheater and a second reheater. The first reheater has a configuration in which warm and moist primary air to be dehumidified is preliminarily cooled by exchanging heat between the primary air and low-temperature dehumidified air dehumidified by the cooler, and is transmitted to the cooler. At the same time, the temperature of the humidified air is raised, and the humidified air is transmitted to the second reheater. The second reheater has a configuration in which the humidified air having a temperature raised by the first reheater is again raised by exchanging heat with the high-temperature refrigerant compressed by the refrigerant compressor, following which the humidified air is externally discharged as secondary air. | 04-08-2010 |
20100077784 | DEHUMIDIFICATION TYPE AIR SYSTEM - A dehumidification type air system is configured such that a switching valve and an air-used device are connected through a dehumidifying member made of a polymer permeation membrane with moisture permeability, and by bringing a moisture emitting face of the dehumidifying member into contact with the atmosphere, supply air supplied from the switching valve through the dehumidifying member to the air-used device is dehumidified by the dehumidifying member, while the moisture permeating through the dehumidifying member is diffused from the moisture emitting face to the atmosphere through natural evaporation. | 04-01-2010 |
20100073842 | NEUTRALIZATION APPARATUS - A static eliminator that can be placed at a close distance capable of eliminating static electricity while preventing furious elevation of the surface electric potential of a work when the static eliminator is placed at a close distance to the work. A cover formed by an electro conductive porous material covering discharge needles is attached to a holding member in which a plurality of the discharge needles are provided and air blowing openings for ejecting air around the discharge needles are provided. The cover evenly discharges ionized air from the surface of the cover, and is electrically connected to ground to have a function for absorbing a part of generated ions. | 03-25-2010 |
20100064834 | DOUBLE RACK AND PINION OSCILLATING DEVICE - A plurality of ring-shaped sealing members are spaced from each other on the outer periphery of each of first and second end caps that seal openings of first and second cylinder holes. Ring-shaped flow paths are formed between adjacent ring-shaped sealing members. Parts of air flow paths that supply and discharge compressed air to and from pressure chambers of the cylinder holes are formed by the ring-shaped flow paths. | 03-18-2010 |
20100033891 | IONIZER HAVING MECHANISM FOR CLEANING DISCHARGE ELECTRODES - Discharge electrodes for generating ion and a member for cleaning the discharge electrodes are mounted on an electrode support frame, which is detachably attached to the case of an ionizer. When the electrode support frame is attached to the case, the cleaning member occupies a retraction position where the cleaning member does not shut off or disturb air that is supplied from a fan. Upon the detachment of the electrode support frame from the case, the cleaning member becomes moveable. Then, the cleaning member is moved while being brought into contact with the discharging parts of the discharge electrodes one after another. As a result, the cleaning member sweeps dust or other particles off the discharging parts thereof. | 02-11-2010 |
20100008010 | IONIZER - An ionizer includes a fan for blowing air, the fan being provided in an air blowing port which opens in a case, and a plurality of discharge electrodes for generating positive and negative ions by corona discharge, the discharge electrodes being provided in the case at positions facing the air blowing port. The ionizer also includes a plurality of discharge electrode pairs each constituted by two discharge electrodes for generating ions of different polarities. When a tip-center distance denotes a distance from the electrode tip to the center of the air blowing port, the tip-center distances of the two discharge electrodes in the discharge electrode pairs are different from each other. | 01-14-2010 |
20090293636 | FLOW SENSOR - A flow sensor includes a detector provided on a side surface of a body formed in a tubular shape. First and second passages formed in the interior of the body communicate with an introduction passage of the detector via first and second sensor passages. The first and second sensor passages penetrate through and open respectively on first and second projections, which project at predetermined heights from an inner circumferential surface of the body, communicating with the first and second passages. A fluid, which flows from the first passage and into the first sensor passage, after being guided to the introduction passage and the flow rate thereof detected by a detector, flows through the second sensor passage and into the second passage. | 12-03-2009 |
20090291596 | STACKING CONNECTOR - A stacking connector is formed by a connector main body and a plug substrate, the connector main body has a substrate sandwiching member including a sandwiching gap into which the plug substrate fits, and a projection projecting into the sandwiching gap, the plug substrate has a concavity with which the projection engages in both top and bottom surfaces, and, after inserting the plug substrate into the sandwiching gap of the substrate sandwiching member, by sliding the plug substrate in a direction at right angles to the insertion direction, the concavity engages with the projection and the plug substrate is linked to the connector main body in an unremovable state. | 11-26-2009 |
20090262482 | IONIZER - An ionizer is formed by coupling a fan unit provided with a discharge electrode and a fan and a control unit provided with an indicator and an adjuster to each other, and both units are changeable between a normal coupling condition, where both are directed in the same direction, and an opposite coupling condition, where they are directed in opposite directions to each other, and in addition, a power/signal arrangement of the connection terminals of the separate connector is bilaterally symmetrical such that same power and signals ale transmitted and received between the separate connectors of both units connected to each other in either coupling condition of aforementioned both units. | 10-22-2009 |
20090236552 | Flow control valve - The present invention provides a flow control valve that requires only a relatively small opening/closing drive force, is compact and does not induce a pulsating flow in the valve open state. A valve seat ( | 09-24-2009 |
20090159765 | PISTON POSITION DETECTING DEVICE OF FLUID PRESSURE CYLINDER - A piston position detecting device includes a position sensor, a fixing screw for attaching the position sensor to an outer periphery of the cylinder tube through the intermediary of a sensor attachment bracket, a nut plate into which the fixing screw is screwed, and a protecting cover covering the position sensor and the fixing screw, wherein the position sensor and the protecting cover are able to be concurrently mounted to the cylinder tube using the fixing screw through the intermediary of a sensor attachment bracket by forming the nut plate from a portion of the protecting cover, and in addition, when the position sensor is position-adjusted, the position sensor and the protecting cover are enabled to be displaced together. | 06-25-2009 |
20090145489 | TEMPERATURE REGULATION METHOD AND SYSTEM FOR LOW FLOW RATE LIQUID - ABSTRACT A method and a system for controlling temperature of a liquid in small flow amount, for supplying a liquid whose temperature is highly accurately controlled, as a flow of a small flow amount or an intermittent flow. A liquid supplied from a supply path is pressurized and introduced into a circulation path, and is temperature-controlled by a temperature control device in the circulation path, while being circulated in the circulation path by a pump in the pressurized condition. The liquid is supplied to an exterior device through a discharge path caused to branch from the circulation path, as a consecutive flow in a small amount or an intermittent flow in a small amount in a flow amount less than at least ½ times the flow amount in the circulation path, by adjusting a discharge valve provided in the discharge path. | 06-11-2009 |
20090135538 | PIEZOELECTRIC TRANSFORMER TYPE IONIZER AND NEUTRALIZATION METHOD - With a piezoelectric transformer formed of a ferroelectric element which generates a high voltage in a secondary section upon application of an AC voltage to a primary section, ground electrodes are attached to upper and lower surfaces of the secondary section of the piezoelectric transformer via a dielectric sheet for insulation in tight contact therewith such that a dielectric barrier discharge occurs around the ground electrodes to generate positive and negative ions, and an air flow is injected from an air nozzle to flow toward a neutralized subject across the ground electrodes. | 05-28-2009 |
20090135537 | WIRE ELECTRODE TYPE IONIZER - An ionizer includes positive and negative wire electrodes each formed of a conductive wire with a circular cross section. The wire electrodes are arranged in parallel with each other, each having circumferential surfaces serving as a discharge surface on which a corona discharge occurs upon application of positive and negative high voltages for discharging positive and negative ions. | 05-28-2009 |
20090122511 | Switch mounting mechanism in fluid pressure device - The present invention provides a switch mounting mechanism that can be adopted with ease in conjunction with a compact fluid pressure device. A space ( | 05-14-2009 |
20090095930 | PNEUMATIC DEVICE CONTROL SYSTEM - A plurality of valve assemblies having a plurality of manifold valves assembled are electrically coupled in a row via lead wire assemblies to transmit a power signal for driving solenoids of the manifold valves in parallel from the valve assembly at a proximal side of the row to the valve assembly at a leading end side via the manifold valves of the valve assemblies and the lead wire assemblies. | 04-16-2009 |
20090020719 | LINEAR MOTION-TYPE GATE VALVE - A gate valve includes a valve plate for opening and closing a gas passageway, and an air cylinder and a shaft for linearly moving the valve plate between a main housing portion and a storage housing portion of a housing, and the air cylinder is arranged on the first lateral surface side of the housing in parallel with a moving direction of the valve plate, and the shaft is arranged so as to overlap with the valve plate in parallel with the moving direction. A tip end of the shaft is coupled with the valve plate at a position situated near a front end portion in the moving direction thereof. | 01-22-2009 |
20090007771 | AIR CYLINDER APPARATUS - An electromagnetic valve, a circuit board on which a control circuit for controlling the electromagnetic valve is mounted, and a cover for covering the electromagnetic valve and the circuit board are installed on a device-attaching surface of an adapter plate disposed at one end in a direction of an axial line of an air cylinder, in a manner so as to be housed within a surface area of the device-attaching surface, and an output port of the electromagnetic valve and a pressure chamber of the air cylinder are allowed to communicate with each other through an air through-hole provided in the adapter plate. | 01-08-2009 |
20090007769 | POSITIONING CONTROL MECHANISM FOR DOUBLE-ACTING AIR CYLINDER - Between an air source and a first pressure chamber of a double-acting main cylinder having a length measurement sensor for measuring an acting position of a piston, a supply solenoid valve is connected; between the first pressure chamber and the atmosphere, an exhaust solenoid valve is connected; and between a second pressure chamber and the air source, a stop solenoid valve is connected. When a target acting position of the piston is inputted into a controller, the controller moves the piston to the target acting position so that a position measured by the length measurement sensor agrees with the target position by on-off controlling the solenoid valves. Upon reaching the target position, the piston is stopped and held in the stopped state by confining air within the pressure chambers. | 01-08-2009 |
20090001636 | SHOCK ABSORBER - A cylinder chamber filled with a liquid, a piston disposed inside the cylinder chamber, a piston rod connected to the piston, and an accumulator allowing the piston rod to generate a damping force by receiving the liquid from a compression side of the cylinder chamber are included, and on an internal periphery of the cylinder chamber, one line of a helical damping groove is formed within a stroke range of the piston, a groove width of the damping groove is constant over the entire length of the damping groove, a depth of the damping groove gradually decreases along a spiral toward the direction in which the piston rod is pushed in, and a length of the piston in a direction along the axis line is smaller than a pitch of the damping groove. | 01-01-2009 |
20080308761 | TWO-PORT SOLENOID VALVE - A first cap is mounted at a movable iron core, a second cap holding a valve member is fitted to the first cap, capable of displacement, an biasing force F | 12-18-2008 |
20080308760 | SOLENOID VALVE - A solenoid valve that is constructed as follows: a cap is mounted on a movable iron core such that forward movement thereof is restricted; a pressing member is displaceably arranged between abutting seat surfaces of the cap and the movable iron core; biasing forces F | 12-18-2008 |
20080308759 | SOLENOID VALVE ASSEMBLY - A socket housing formed on the side of a solenoid valve body includes a socket thereinside connected with a coil of a solenoid operation section. A power feeding terminal box for holding a pin-shaped power feeding terminal connected with a power feeding line is housed in a terminal cover. Installation of the terminal cover on the side of the solenoid valve body causes the power feeding terminal to be electrically connected with the socket and at the same time the power feeding terminal box to be locked into a locking stopper formed inside the terminal cover, thereby allowing the terminal cover to be locked and held in place. | 12-18-2008 |
20080308756 | ELECTROMAGNETIC VALVE - A circular cap is slidably fitted upon an outer periphery of a tip end portion of a movable core. The movable core is biased in a direction to separate from a fixed core by means of a return spring via the cap. A tip end of a pushrod extending from a holding member for holding a valve element is allowed to be in contact with a tip end of the cap. A biasing force of the return spring is applied from the cap to the valve element via the pushrod when the movable core is separated from the fixed core by means of the return spring by demagnetization of an exciting coil, and the valve element is allowed to be in contact with a valve seat. | 12-18-2008 |
20080308162 | MANIFOLD-TYPE SOLENOID VALVE APPARATUS HAVING STOP VALVE - A plurality of solenoid valves are installed on a valve mount surface of a manifold base to receive a pressure fluid supplied from a supply passage of the manifold base via a supply communication hole. A stop valve base connected to a side surface of the manifold base has a stop valve mount surface formed on the upper surface to the side of the valve mount surface. The stop valve is attached to the stop valve mount surface to open and close the supply communication hole by pushing and pulling the stop valve from a side with the solenoid valve. | 12-18-2008 |
20080236805 | TEMPERATURE CONTROL DEVICE FOR LIQUID MEDICINES - In a temperature control device for liquid medicines provided with a flow path block having flow paths for liquid medicines at both of front and back surfaces, heat-transmitting plates respectively disposed at both of the front and back surfaces of the flow path block in a manner so as to face the flow paths, and thermo-modules for performing a cooling operation or a heating operation on the liquid medicines that flows through the flow path via the heat-transmitting plates, respectively, at least one ridge of mountain-shaped sealing projection portion surrounding a periphery of the flow path are integrally formed with the flow path block at sealing surfaces respectively surrounding the flow paths at both of the front and back surfaces of the flow path block, and the heat-transmitting plates are fixed to the flow path block in a state of pressure-contacting the sealing projection portion. | 10-02-2008 |
20080236387 | Piston assembly in fluid pressure cylinder - The piston | 10-02-2008 |
20080236383 | POSITIONING CONTROL MECHANISM FOR SINGLE-ACTING AIR CYLINDER - An electromagnetic operation-type automatic pressure-adjusting valve outputting an air pressure corresponding to an amount of electric power is connected in an air flow path connecting a pressure chamber of a single-acting main cylinder and an air source. A controller is configured to obtain a relationship between a position of a piston and an air pressure from a relationship between the position of the piston of the main cylinder and a spring force of a return spring, and a relationship between the air pressure supplied to the pressure chamber and an acting force applied to the piston by the air pressure. When a target position of a movement of the piston is inputted to the controller, the controller is operated to move the piston toward the target position and to stop the piston at the position by means of controlling the amount of electric power for the automatic pressure-adjusting valve so that an air pressure corresponding to the target position is outputted. | 10-02-2008 |
20080236381 | POSITIONING CONTROL MECHANISM FOR DOUBLE-ACTING AIR CYLINDER - Between an air source and first and second pressure chambers of a double-acting main cylinder having a length measurement sensor for measuring an acting position of a piston, a first supply solenoid valve and a second supply solenoid valve are connected, respectively, while between the first and second pressure chambers and the atmosphere, a first exhaust solenoid valve and a second exhaust solenoid valve are connected, respectively. When a target acting position of the piston is inputted into a controller, the controller moves the piston to the target acting position so that a position measured by the length measurement sensor agrees with the target position by on-off controlling the solenoid valves. Upon reaching the target position, the piston is stopped and held in the stopped state by confining air within the pressure chambers. | 10-02-2008 |
20080223466 | PILOT-OPERATED THREE-PORT VALVE - A pilot-operated three-port valve includes three ports, two valve seats that are concentric and opposite each other, a poppet-type valve member that is disposed between these two valve seats, and a pilot operating portion that opens and closes the valve member using a rod. Seat surfaces of the two valve seats and a first seal surface and a second seal surface of the valve member are flat. The valve member is attached to an end of the rod coaxially with the rod and so as to have a degree of freedom of inclination from the axis of the rod. | 09-18-2008 |
20080203339 | SOLENOID VALVE ASSEMBLY - A solenoid valve assembly includes a three-port solenoid valve and a solenoid-valve holder having the solenoid valve mounted thereon, so that the solenoid valve can be attached on a pneumatic instrument via the solenoid-valve holder. When the solenoid valve is mounted on the solenoid-valve holder, this solenoid-valve holder is provided with a plurality of flow paths that communicate with each port of the solenoid valve, connection terminals electrically and respectively connected to electrification terminals conducting with an exciting coil of the solenoid valve, and receiving terminals for connecting the connection terminals to terminals of external power, respectively. | 08-28-2008 |