Class / Patent application number | Description | Number of patent applications / Date published |
173020000 | WITH INDICATING OR SIGNALING MEANS | 59 |
20080271904 | Power hand tool - A power hand tool includes a housing, a motor, a speed change gear set, gearshift position control device, and a display member. The housing includes a longitudinal sliding slot. The motor mounted inside the housing. The speed change gear set is mounted inside the housing. The gearshift position control device is movably mounted in the longitudinal sliding slot to shift the speed change gear set to one of a series of gearshift positions for multi-speed output of the motor, having an indication zone and a display member. The indication zone has multiple numerical signs corresponding to the gearshift positions. The display member is fixedly mounted in the longitudinal sliding slot, having a light-penetrable display zone capable of magnification and corresponding to the indication zone for magnifying one of the numerical signs, and a lamp mounted inside the housing for illuminating the indication zone. | 11-06-2008 |
20090114410 | POWER TOOL GUARD - A power tool including a power tool body, a rotatable driven member being operable for releasably gripping a working element and having a front end and a rear end, the driven member extending from the rear end, located proximally and connected to the power tool body, and terminating at the front end. The power tool has a drive mode in which rotation of the driven member drives the working element relative to the power tool body and an adjustment mode in which rotation of the driven member causes the driven member to either grip the working element or release the working element or both. The power tool also includes a guard extending over the driven member from the power tool body and terminating adjacent to the front end of the driven member, wherein at least in the power tool drive mode the front end of driven member does not extend beyond the guard. In another aspect the guard has a surface for gripping the power tool between the front end of the driven member and the power tool body. | 05-07-2009 |
20090183888 | FASTENING TOOL - A power tool for operating on a workpiece, the power tool having a housing and a motor disposed within the housing. A controller is connected to the motor and receives user inputs for turning on the motor and a power tool battery pack is connected to the controller and the motor. At least one light is connected to the controller for illuminating the workpiece. The controller can turn on the light in a predetermined pattern to alert the user to a tool condition, such as the charge level being below a predetermined level. | 07-23-2009 |
20090218113 | Electrical hand tool with magnets for absorbing dust - An electrical hand tool device ( | 09-03-2009 |
20090229842 | BATTERY PACK FOR USE WITH A POWER TOOL AND A NON-MOTORIZED SENSING TOOL - A system includes a power tool having a motor, a drive mechanism mechanically coupled to the motor, and an output element mechanically coupled to the drive mechanism. The motor is operable to drive the drive mechanism and the output element. The system also includes a non-motorized sensing tool having a printed circuit board and a sensing element electrically coupled to the printed circuit board. The sensing element is operable to detect an external characteristic and output a signal to the circuit board. The circuit board is operable to condition the signal into a human-comprehensible form. The system further includes a rechargeable battery pack removably and independently coupled to the power tool and the non-motorized sensing tool. The battery pack is operable to power the motor to drive the drive mechanism and the output element when connected to the power tool, and is operable to power the circuit board and the sensing element when connected to the non-motorized sensing tool. | 09-17-2009 |
20090236109 | Power tool having a temperature indicator - The present invention relates to a power tool including a temperature indicator. The power tool includes a housing, a driving source, a transmission system within the housing, a working head connected to the transmission system through a connecting means, and a temperature indicator mounted on the parts of the power tool that may increase in temperature during operation, thereby warning the operator not to touch the specific part, and/or turn off the power tool to potentially prolong the life of the effected part. | 09-24-2009 |
20100071921 | ENVIRONMENTALLY ADVANTAGEOUS ELECTRIC DRILL WITH EFFICIENCY PROMOTING CHARGE STATE INDICATOR - In accordance with the invention, a drill comprises a drill housing with a handle portion and a driver portion. A push button battery tester extends battery life. An electrical drill motor is located in the driver portion. The drill motor has an output shaft for coupling output rotary power. An electrical switch controls the operation of the drill motor. The electrical switch it is located on the handle portion of the drill housing. A chuck is coupled to the output shaft of the drill motor. | 03-25-2010 |
20100089601 | Power tool having an illuminated torque calibration indicator - A power tool including a housing, a motor, a transmission, a handle, an adjustable torque clutch, wherein at least a portion of the torque clutch is illuminated. Illumination of the torque clutch permits the user to identify the work mode or torque value of the torque clutch clearly in all working conditions, including dimly lit conditions. | 04-15-2010 |
20100116517 | HAND MACHINE TOOL, BATTERY PACK, AND CHARGER - The invention describes a hand machine tool, a battery pack, or a charger for at least one battery, or for a battery pack, having a housing, or part of a housing, made of at least one plastic, and having at least one indicator component mixed in with the at least one plastic. | 05-13-2010 |
20100236800 | POWER TOOL - It is an object of the invention to easily determine a currently-selected operation mode in a power tool which offers several operation modes. A representative electric hammer drill | 09-23-2010 |
20100252288 | PNEUMATIC TOOL HAVING A ROTATIONAL SPEED DETECTION DEVICE - A pneumatic tool having a rotational speed detection device includes a light blocking member mounted on a spindle and a sensor corresponding in position to the light blocking member. The sensor is electrically connected to a counter module. A display is to show a rotational speed. When the spindle starts to spin, the light blocking member will lock the light path of the sensor and the counter module will record the number of the times to count the rotational speed to be showed on the display, thus the user may read the rotational speed and make an adjustment on an air flow control module as necessary till the rotational speed reaches the desired speed. | 10-07-2010 |
20110005786 | PERCUSSION TOOL - A pneumatic percussion tool ( | 01-13-2011 |
20110005787 | PORTABLE POWER TOOL WITH INDICATING MEANS FOR ACTUAL OPERATION PARAMETER VALUES - A portable power tool having a housing with a rotation motor for powering a working implement, wherein sensors are provided to indicate the motor speed and the power supply, and a programmable evaluation unit is arranged to compare indicated speed and pressure values with stored limit values, and to accumulate the total operation time of the power tool and compare that with preset time limits for tool service intervals, and an optical information unit is provided on the housing to indicate whether those stored limit values have been reached. | 01-13-2011 |
20110067895 | TOOL, INFORMATION PROCESSING UNIT, TERMINAL UNIT, AND MANAGEMENT SYSTEM - A sensor part detects an actual driving signal in the driving time by a pneumatic tool. A control part, based on the detected actual driving signal, makes an addition to the actual driving number which has already stored in a memory part to updates the actual driving number, and compares the updated accumulative actual driving number with the previously set basic maintenance number. As a result of the comparison, in case the accumulative actual driving number exceeds the basic maintenance number, it is determined that maintenance is necessary for the pneumatic tool. A light emitting part emits the light and blinks by an instruction from the control part, thereby to warn a user that the pneumatic tool is into the maintenance time. Hereby, the user can grasp the maintenance time of the tool surely and exactly. | 03-24-2011 |
20110094762 | Electric Power Tool with Communication Line to Battery Pack - An electric power tool has a drive motor and an electronic control unit. Power is supplied by a battery pack with several individual cells and a monitoring circuit for the operating parameters of the cells. A communication line connects electronic control unit and monitoring circuit. Digital data are exchanged through the communication line between electronic control unit and monitoring circuit. A controller controls data traffic through sending and receiving units. The communication voltage is higher than a permissible input voltage level of the controller and lower than a maximum battery pack voltage. The receiving unit, as a filter, converts a received first signal level that is lower than a first voltage to a LOW signal and lowers a received second signal level that is higher than a second voltage to the input voltage level of the controller and relays the second signal level as a HIGH signal. | 04-28-2011 |
20110139473 | POWER TOOL HAVING CLUTCH DEVICE - The invention relates to a power tool, in particular an electrically operable hand-held power tool, having at least one tool drive shaft for direct or indirect rotary drive of an insert bit, with the insert bit being accommodated in a tool holder that is connected or detachably connected to the tool drive shaft, particularly in a replaceable fashion. At least one drive device and at least one clutch device that couples the at least one drive device to the at least one tool drive shaft is provided which has at least two different, user-selectable, limit torques. An actuating device is provided that makes it possible, with a replacement of the insert bit and/or a replacement of the tool holder, to reset the clutch device to a lower limit torque, preferably to the lowest possible limit torque. | 06-16-2011 |
20110180286 | Electric Power Tool - An electric power tool ( | 07-28-2011 |
20110203822 | OIL PULSE TOOL - According to an aspect of the invention, an oil pulse tool includes: a motor generating a driving force; an oil pulse unit including a shaft, the oil pulse unit being driven by the motor and generating an impact torque on the shaft when the motor passes an impact position; and an output shaft on which a front end tool is attached, the output shaft being fixed to the shaft, wherein the oil pulse tool is provided with a rotational position detecting sensor of detecting a rotational position of the output shaft, and a torque detecting sensor of detecting generation of an impact torque, and the oil pulse tool is provided with detecting means for measuring a state required for reversely rotating the motor by generating an impact, and regularly rotating again the motor and passing a position of generating the impact, and detecting a reduction in a performance of the oil pulse unit by an aging change of the state. | 08-25-2011 |
20110253401 | Hand-Guided Work Apparatus - A hand-guided work apparatus includes a combustion engine to drive a work tool. The combustion engine includes a crankcase ( | 10-20-2011 |
20110278033 | PORTABLE ANGLE IMPACT TOOL - A portable angle impact tool has a housing, a motor arranged within the housing, a transmission mechanism which is driven by the motor and which drives an output shaft, a switch assembly for controlling the motor, and a PCB board wherein a circuit of the switch assembly is arranged on the PCB. | 11-17-2011 |
20120031635 | BATTERY-POWERED PORTABLE TOOLS - A battery-powered portable tool, such as a chainsaw, hedge trimmer or handheld drill, comprising: a housing ( | 02-09-2012 |
20120031636 | TOOL ASSEMBLY HAVING TELESCOPING FASTENER SUPPORT - A power tool with a reversible motor and a switch arrangement for controlling operation of the motor. The switch arrangement includes a direction switch, an actuator and an indicator. The direction switch is configured to control a rotational direction of the motor. The actuator is configured to receive a manual input from an operator indicative of a desired operational state of the motor. The indicator includes direction indicia indicative corresponding to operational states of the motor. The direction indicia is positioned at a location that is spaced apart from the actuator. | 02-09-2012 |
20120055687 | BATTERY OPERATED PORTABLE TOOLS - A battery-operated portable tool ( | 03-08-2012 |
20120211248 | Hand-Held Power Tool - A hand-held power tool has a housing with a cylinder chamber. An internal combustion engine is arranged in the housing and the internal combustion engine has a cylinder arranged in the cylinder chamber. A device is provided that detects temperature information in the cylinder chamber when the internal combustion engine is in an inoperative state. An indicator device that indicates the temperature information is provided. | 08-23-2012 |
20120267135 | Electric Power Tool with Ultrasonic Excitation - An electric power tool includes a region with ultrasonic excitation for a tool that can be driven in a linear and/or oscillating manner, with a drive unit for ultrasonic excitation, an electronics unit for applying at least controlling and/or regulating signals to the drive unit, as well as an operating voltage unit. The drive unit includes at least one ultrasonic excitation actuator, which during operation is electrically supplied by the operating voltage unit and is controlled and regulated by the electronics unit. A device is provided for outputting an information signal, which can be output on the basis of at least one operating parameter of the electric power tool. It is proposed that the device is formed for the purpose of varying frequency and/or amplitude of the information signal on the basis of one or more current operating parameters. | 10-25-2012 |
20120298390 | STUD MISS INDICATOR FOR FASTENER DRIVING TOOL - A stud miss indicator system for a fastener driving tool includes at least one sensor generating at least one signal based on forces generated by a fastener driving operation, a software program configured for receiving the at least one signal, for evaluating the at least one signal as to a fastener being either improperly driven or properly driven, and the program generating at least one appropriate output signal reflective of the evaluation. | 11-29-2012 |
20120318546 | BATTERY PACK FOR USE WITH A POWER TOOL AND A NON-MOTORIZED SENSING TOOL - A system includes a power tool having a motor, a drive mechanism mechanically coupled to the motor, and an output element mechanically coupled to the drive mechanism. The motor is operable to drive the drive mechanism and the output element. The system also includes a non-motorized sensing tool having a printed circuit board and a sensing element electrically coupled to the printed circuit board. The sensing element is operable to detect an external characteristic and output a signal to the circuit board. The circuit board is operable to condition the signal into a human-comprehensible form. The system further includes a rechargeable battery pack removably and independently coupled to the power tool and the non-motorized sensing tool to power the motor to drive the drive mechanism and the output element when connected to the power tool and the circuit board and the sensing element when connected to the non-motorized sensing tool. | 12-20-2012 |
20120325507 | Portable Tool with Wireless Measured Value Transmission - A portable tool includes an electric motor drive, an output body, a detection device, and a transmission device. The output body can be rotated about a predefined axis. The detection device detects at least one physical measured value which is characteristic of the output operation with the output body. The transmission device transmits the physical parameter contactlessly from a rotating region of the tool to a stationary region of the tool. The transmission device includes a rotor coil and a stator coil. The rotor coil rotates with respect to the stator coil. The stator coil is configured without a former in a region between the stator coil and the rotor coil. | 12-27-2012 |
20120325508 | REMOTE-CONTROLLED ACTUATOR ASSEMBLY - A remote-controlled actuator assembly includes a guide section ( | 12-27-2012 |
20130000934 | Power Tool Provided With Circuit Board - A power tool includes a motor, an impact mechanism, an output unit, a circuit board, a housing, and a power cord. The circuit board includes a power-source circuit board configured to convert alternate current into direct current and a control circuit board. The housing includes a body section, a board accommodating section, and a handle section. The board accommodating section accommodates the circuit board. The handle section has one end portion connected to the body section and another end portion connected to the board accommodating section. The power cord extends from the board accommodating section. The power cord is positioned opposed to the handle section with respect to the board accommodating section. The control circuit board is located at a position close to the handle section in the board accommodating section. The power-source circuit board is located between the control circuit board and the power cord. | 01-03-2013 |
20130025894 | TOOL HAVING TORQUE-CONTROLLED SPINDLE LOCK ASSEMBLY - A hand-held power tool can include a housing, a motor assembly, and a spindle lock assembly. The housing can include a gear case. The motor assembly can be disposed in the housing and be configured to output rotary power to an output spindle. The spindle lock assembly can include an anvil matingly engaged to the output spindle. A ring structure can be rotatably received in the gear case and have a ring body and a reaction tab. A biasing member can be disposed in the gear case and configured to bias the reaction tab in a first predetermined rotational direction. | 01-31-2013 |
20130098647 | BATTERY POWERED TOOL - The present disclosure relates to a battery powered tool ( | 04-25-2013 |
20130105187 | ROTARY TOOL | 05-02-2013 |
20130133907 | ELECTRIC TOOL HAVING INPUT/OUTPUT PORT - An electric tool includes a housing, a drive mounted inside the housing, a circuit board mounted inside the housing and electrically connected with the drive, a first connection port electrically connected with the circuit board and exposed outside the housing, and a controller. The controller has a second connection port configured corresponding to the first connection port in a way that the second connection port is detachably and electrically connectable with the first connection port. Connecting the second connection port of the controller with the first connection port of the electric tool enables a user to set operating parameters of the electric tool subject to his/her actual needs through the controller so as to control the operating status of the electric tool. | 05-30-2013 |
20130206435 | Electric Power Tool, In Particular Drill/Screwdriver - An electric power tool, in particular a drill/screwdriver, has a drive motor which is coupled via a gearbox to an output drive element. The gearbox has a plurality of gears. In particular, the drive motor is coupled to a drive spindle in which the torque generated by the drive motor is adjustable. The torque can be adjusted by a first, manually operated, adjusting device, and by a second, manually operated, adjusting device. The second adjusting device is configured to adjust the torque by selecting the gear of the gearbox. Both adjusting devices are operated by a common actuating element. | 08-15-2013 |
20130206436 | BIT RETENTION ASSEMBLY FOR ROTARY HAMMER - A rotary hammer includes a motor, a spindle coupled to the motor for receiving torque from the motor, a piston at least partially received within the spindle for reciprocation therein, and an anvil received within the spindle for reciprocation in response to reciprocation of the piston. The anvil imparts axial impacts to a tool bit in response to reciprocation of the piston. The rotary hammer also includes a bit retention assembly for securing the tool bit to the spindle. The bit retention assembly includes a collar with an indicator thereon. The indicator is at least partially visible to a user of the rotary hammer when the tool bit is improperly inserted within the spindle. | 08-15-2013 |
20130240228 | Crimp Tool Force Monitoring Device - A crimp tool includes a frame, a lead screw and a nut assembly connected to the lead screw. A spring member is connected to the frame and movable with rotation of the lead screw. A first transducer is connected to the nut assembly to measure a first force applied on the nut assembly. A second transducer is connected to the spring member to measure a second force applied thereon by the spring member. | 09-19-2013 |
20130240229 | Fastening Tool - A power tool for operating on a workpiece, the power tool having a housing and a motor disposed within the housing. A controller is connected to the motor and receives user inputs for turning on the motor and a power tool battery pack is connected to the controller and the motor. At least one light is connected to the controller for illuminating the workpiece. The controller can turn on the light in a predetermined pattern to alert the user to a tool condition, such as the charge level being below a predetermined level. | 09-19-2013 |
20130255981 | POWER TOOL - In addition to improvement of operability, a small size with a light weight and a long life are achieved. A switch housing unit and a control-part housing unit are provided in a housing, a switch unit provided with a pressure switch which generates an electric signal by performing a pressing operation by a worker is housed in the switch housing unit, a switch cover which covers the pressure switch and which is elastically deformed by the pressing operation by the worker is provided, and the control-part houses a control circuit board which controls a rotation state of a motor in accordance with a magnitude of the electric signal outputted from the pressure switch. | 10-03-2013 |
20130292147 | POWER TOOL HAVING A SPEED SELECTOR SWITCH - A power tool includes a tool housing defining a cavity and a pocket formed in a wall of the tool housing. A motor is positioned within the cavity, and a trigger mechanism is moveably coupled to the tool housing. A speed selector switch is positioned within the pocket, the speed selector switch including a push-button operable to receive a speed selection and a plurality of speed indicators. The speed selector switch is operable to output a speed signal based on the speed selection, and the speed indicators indicate the speed selection. The power tool further includes a controller operable to receive the speed signal from the speed selector switch, the speed signal indicative of a selected speed, receive an activation signal from the trigger switch, and operate the motor at the selected speed upon receiving the activation signal. | 11-07-2013 |
20130319705 | FASTENER-DRIVING TOOL INCLUDING A FASTENING RESULT DETECTOR - A fastener driving tool including a housing, a cylinder enclosed by the housing, at least one sensor associated with the cylinder and a piston configured to reciprocate within the cylinder and having a driver blade depending therefrom. The tool includes at least one signal generator associated with the piston, where movement of the piston relative to the at least one sensor generates a signal. A controller is configured to receive the signal and indicate a fastening result based on the signal. | 12-05-2013 |
20130341057 | FASTENER-DRIVING TOOL WITH AN ELECTRIC POWER GENERATOR - A fastener driving tool is provided including a housing, a cylinder enclosed by the housing and at least one sensor associated with the cylinder. A piston is configured to reciprocate within the cylinder and has a driver blade depending therefrom. At least one signal generator is associated with the piston, where movement of the piston relative to the at least one sensor generates a signal. | 12-26-2013 |
20140008088 | Display Assemblies Having Integrated Display Covers and Light Pipes and Handheld Power Tools and Methods Including Same - A handheld power tool includes a housing, a display device mounted on the housing, at least one light source mounted in the housing, and an integral, light transmissive lens member. The lens member includes a cover portion covering the display device to protect the display device from the environment, and a light pipe portion positioned and configured to transmit light emitted from the at least one light source to a location on the handheld power tool visible exteriorly of the housing. | 01-09-2014 |
20140096988 | POWER TOOL - A brush cutter as a power tool includes a combustion engine, an electric motor, a gear head which drives a blade, a battery pack which provides electric current to the electric motor and a controller which controls a driving of the blade. An output shaft of the combustion engine and an output shaft of the electric motor are arranged coaxially to each other. Further, the combustion engine drives the gear head and thereby the blade is driven. The controller has a first control mode in which the blade is driven and a second control mode in which the battery pack is charged. In the second control mode, the controller controls the combustion engine so that the combustion engine drives the electric motor as a generator without driving the blade, and the battery pack is charged by the generator. | 04-10-2014 |
20140116737 | PORTABLE TOOL - A casing of a hedge clipper which is a portable tool is provided with a power source housing in which an electric motor is housed and a main handle held by a worker, and blades serving as a tip tool are provided to the casing. An operation display panel is provided on the main handle, and a driving information display unit which displays a battery remaining capacity and a rotation speed of an electric motor as a plurality of pieces of driving information is provided on the operation display panel. The selection of the information to be displayed is switched by the operation of an operation switch unit provided in the operation display panel. | 05-01-2014 |
20140166324 | Power Tool User Interface - A power tool has a housing, a motor disposed in the housing, a tool holder driven by the motor, a control circuit for controlling the motor, a rotary input rotatable relative to the housing, and a rotational sensor for sensing the rotational position of the rotary input relative to the housing. The rotary input can be a thumbwheel or a handle that rotates relative to the housing. The control circuit receives input from the rotational sensor for controlling motor speed, rotational direction, etc. Other user interface mechanisms are disclosed as well. | 06-19-2014 |
20140174773 | ELECTRONIC TORQUE TOOL HAVING DISCONTINUOUS TORQUE WARNING VALUES WITH AN INTERVAL THEREBETWEEN - An electronic torque tool includes a main body; at least one display unit disposed on the main body for displaying torque values, and several pushbuttons disposed on the main body for a user to set values to the torque tool. The electronic torque tool has resettable torque warning values, which are discontinuous values with an interval therebetween. Thanks to the interval between the discontinuous resettable torque warning values, the torque warning value of the torque tool is lower than the required tightening force. In this case, it can be avoided that a threaded member is over-tightened. | 06-26-2014 |
20140174774 | Machine Tool - A machine tool has a cover body with a window, the window including two spaced window plates defining an airtight space therebetween. The space is brought to a pressure other than atmospheric. An indicator is coupled to the cover body and has an indicator portion that is displaced in response to pressure in the space. The indicating portion is visually observable from outside the machine tool, so that the airtightness of the window may be determined by visually observing the position of the indicating portion. | 06-26-2014 |
20140190713 | Guide and Control Assembly - A guide and control assembly of a battery driven portable handheld power tool ( | 07-10-2014 |
20140231114 | POWER DRILL - A power drill shiftable between at least two operational modes has a drill housing, a brushless dc motor in the housing, a drive spindle rotatable about an axis, and a chuck body adjacent the housing. Two elements interconnected by a screwthread are relatively axially shiftable on relative rotation about the axis, and gripping jaws between the chuck body and one of the elements are relatively shiftable radially of the axis on relative axial shifting of the elements. A drive sleeve rotatable by the motor about the axis is connected to the other of the elements. A member is shiftable between positions corresponding to the operational modes of the power drill. A sensor detects which mode the power drill is in, and motor-control means connected between the sensor and the motor adjusts a parameter of the motor as a function of the mode detected by the sensor. | 08-21-2014 |
20140262391 | Adapter for Transferring Electrical Signals to Pneumatic Tool - In one illustrative embodiment, an adapter for transferring electrical signals to a pneumatic tool may comprise a housing having a tool interface and a charger interface, the tool interface shaped to receive a portion of the pneumatic tool, the charger interface shaped to be received by a charger unit that is configured for charging a battery of an electric tool, a tool connector disposed at the tool interface and configured to be removably coupled to electronics of the pneumatic tool, a charger connector disposed at the charger interface and configured to be removably coupled to electronics of the charger unit, and an adapter circuit disposed within the housing and coupled to both the tool connector and the charger connector, wherein the adapter circuit is configured to receive a first power signal via the charger connector and to supply a second power signal via the tool connector. | 09-18-2014 |
20140262392 | MACHINE TOOL WITH VIBRATION DETECTION - A method of detecting machine tool vibration is provided. The method includes receiving, from a sensor arranged in a machine tool, motion data measured along an axis. The method also includes comparing the motion data against a first threshold. The method also includes adjusting a counter if the motion data has a magnitude greater than the first threshold. The method also includes generating an alarm if the counter is greater than a second threshold. | 09-18-2014 |
20140332242 | METHOD FOR CONTROLLING TORQUE OUTPUT OF DC ELECTRIC TOOL - A method for controlling a torque output of a DC electric tool, includes presetting torque levels and voltage ranges corresponding to the torque levels, detecting the current output voltage of a battery and determining the voltage range in which the current output voltage is located, determining whether or not the current voltage range matches the preset torque level or not, and if the current voltage range does not match the preset torque level providing a warning that the torque output cannot reach the preset torque level and calculating and displaying a maximum torque level corresponding to the actual torque output value and, if the current voltage range does match the preset torque level, calculating the current actual torque output value and keeping a PWM modulation value constant if the torque output value conforms to the preset torque level or increasing the PWM modulation value for compensation if the torque output value does not conform to the preset torque level. | 11-13-2014 |
20150027742 | Battery-Powered Portable Tools - A battery-powered tool includes: a housing, a driven element supported by the housing, an electric motor coupled to the driven element so as to drive the driven element, a battery electrically coupled to the motor so as to supply electric current to the motor and a control circuit arranged to control the supply of electric current to the motor from the battery. The control circuit includes a main switch operable by a user and an auxiliary switch also operable by a user. The control circuit has an active state in which operation of the main switch by the user allows electric current to flow to the motor to cause the driven element to be driven; and an inactive state in which operation of the main switch does not allow electric current to flow to the motor and so the motor does not drive the driven element. Operation of the auxiliary switch causes the control circuit to change between the active and inactive states. | 01-29-2015 |
20150122524 | Portable Power Tool - A portable power tool includes a drive motor configured to generate torque, a transmission including a plurality of transmission gears positioned in a housing and configured to transmit torque generated by the drive motor to a drive shaft, a first adjusting element positioned on the housing, and a first sensor configured to detect a position of the first adjusting element. The first adjusting element is configured to set at least one of the torque and a transmission gear of the plurality of transmission gears. The first sensor is configured to transmit a first signal corresponding to the position of the first adjusting element to an electronic control element. | 05-07-2015 |
20150375382 | DEVICE FOR PRESSURE MONITORING - A device for monitoring pressure within a gas space, which is filled with gas, preferably nitrogen, and/or is prestressed, of a pressure accumulator of a hydraulically driven percussive mechanism having a housing in which a piston is mounted, together with a display element which extends through the face surface of the housing, so as to be slidingly movable counter to the force of a spring, wherein the piston divides the housing into a pressure chamber and a spring chamber. The spring acts on a spring chamber-side working surface of the piston, and the pressure accumulator is at least indirectly operatively connected to the pressure chamber-side working surface of the piston, such that, in the event of a critical pressure within the pressure accumulator being undershot, the piston and the display element are displaced to such an extent that the display element protrudes out of the housing. | 12-31-2015 |
20150375383 | PRESSURE MONITORING DEVICE - A device for monitoring the pressure within a gas space, which is filled with a gas, preferably nitrogen, and/or is prestressed, of a pressure accumulator of a hydraulically driven percussive mechanism, in particular of a demolition hammer or of a drilling hammer, having a housing in which a piston is mounted, together with an indicator element which extends through the face surface of the housing, in slidingly movable fashion. The piston divides the housing into two chambers, and a first, pressure accumulator-side chamber and a pressure accumulator-side working surface, which is averted from the indicator element, of the piston are operatively connected at least indirectly to the gas space of the pressure accumulator. A second, hydraulics-side chamber and a hydraulics-side working surface, facing toward the indicator element, of the piston are connected to the hydraulic system of the percussive mechanism. | 12-31-2015 |
20160067857 | WEAR INDICATING SYSTEM - A hydraulic hammer is provided. The hydraulic hammer includes a housing member. The hydraulic hammer also includes a power cell disposed within the housing member. The power cell includes an outer casing. The hydraulic hammer also includes a work tool operatively coupled with the power cell. The hydraulic hammer also includes one or more bushing parts arranged within the outer casing of the power cell. The one or more bushing parts are adapted to guide the work tool during an operation of the hydraulic hammer. The one or more bushing parts include a first surface and a second surface spaced apart from the first surface. The hydraulic hammer also includes a wear indicating system for indicating a wear of the one or more bushing parts with respect to the first surface. The wear indicating system includes a first passage and a second passage. | 03-10-2016 |
20160167206 | SCREW LOCKING CONTROL SYSTEM AND OPERATING SYSTEM USING THE SAME | 06-16-2016 |