| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 475162000 | PLANET PERIPHERY SURROUNDS AXIS OF INTERACTING GEAR (E.G., ECCENTRICALLY DRIVEN TRANSMISSON) | 79 |
| 20110190090 | Eccentric Differential Drive - An eccentric differential drive having two output elements ( | 08-04-2011 |
| 20090131211 | DEVICE FOR TRANSMISSION OF A TORQUE - Fluid-tight transmission comprising an internal cogwheel ( | 05-21-2009 |
| 20130102433 | GEAR TRANSMISSION - A gear transmission includes an eccentric-oscillating-type first reduction gear unit having a first internal gear, a first crankshaft with at least one first eccentric body defined thereon, a first input gear fixed to the first crankshaft and a first output member, as well as an eccentric-oscillating-type second reduction gear unit disposed coaxially with the first reduction gear unit and surrounding the first reduction gear unit. The second reduction gear unit has a second internal gear, a second crankshaft with at least one second eccentric body defined thereon, a second input gear fixed to the second crankshaft and a second output member. The first output member is engaged with the second input gear. Further, the first internal gear is disposed, in the axial direction of the gear transmission, between the second input gear and the at least one second eccentric body. | 04-25-2013 |
| 20090233750 | HOLLOW SPEED REDUCER - There is provided a speed reducer capable of shortening a length in an axial direction of a turning structure by arranging a plurality of small-sized motors. | 09-17-2009 |
| 20110263373 | ROTARY ACTUATOR - A sun gear is supported by an eccentric portion of a rotor via a bearing and rotatable eccentrically to the rotor axis. A ring gear includes inner teeth via which the ring gear is meshed with outer teeth of the sun gear. An output shaft is located adjacent to the sun gear in the axial direction. A fitted portion of the output shaft is loosely fitted to a fitting portion of the sun gear to transfer rotation of the sun gear to the output shaft. The bearing has a center position located in a fitting overlap region between the fitting portion of the sun gear and the fitted portion of the output shaft in the axial direction and/or located in a gear overlap region between the outer teeth of the sun gear and the inner teeth of the ring gear which are meshed with the outer gear. | 10-27-2011 |
| 20090325753 | REDUCTION GEAR TRANSMISSION - A reduction gear transmission capable of realizing a large reduction ratio while preventing both an increase in its diameter and a decrease in the diameter of its through hole, including: a motor gear; an intermediate shaft; a first and second gear; an input shaft; and an external and internal gear. The first and second gears are fixed to the intermediate shaft. The first gear meshes with the motor gear. The input shaft causes an eccentric rotation member to rotate eccentrically with the rotation of the input gear, which meshes with the second gear. The external gear engages the eccentric rotation member, revolving orbitally around an axis line of the input shaft. The internal gear meshes with the external gear, each having a different number of teeth. The motor gear and first gear mesh at a position offset from a straight line formed by connecting an axis line of the intermediate shaft and of the input shaft. | 12-31-2009 |
| 20090054192 | GEAR DEVICE - First input-side eccentric part | 02-26-2009 |
| 20080261743 | ECCENTRIC GEAR MECHANISM AND METHOD OF TRANSFERING TURNING FORCE THEREBY - An eccentric gear mechanism, comprising an input drive having a centric portion rotated about an axis and an eccentric portion; a movable inner ring gear having outer circumferential gear teeth, so that said centric portion and said eccentric portion of said input drive turn in one direction against said movable inner ring gear, said inner ring gear being configured in such a way that it allows an eccentric movement by said inner ring gear and transfers a given turning force derived by said inner ring gear in an opposite direction to said one direction; an outer ring gear having inner circumferential gear teeth partially engaged with said outer circumferential gear teeth of said inner ring gear, so that when said given turning force is derived by said inner gear ring in said opposite direction said outer ring gear rotates around said axis, and said outer ring gear transfers said given turning force in said one direction outwardly along said axis. | 10-23-2008 |
| 20090258748 | SPEED REDUCTION DEVICE - A low-noise speed reduction device that is simple in structure, small-sized, and little in energy loss is provided. Two-stage gears, i.e., a large-diameter gear | 10-15-2009 |
| 20090247349 | Reduction Gear Transmission - The length of an inner meshing planetary gear type reduction gear transmission is reduced in its rotational axis line direction. | 10-01-2009 |
| 20080305908 | Joint driving apparatus for robot - A joint driving apparatus for a robot comprises an oscillating internally meshing reduction mechanism, a center shaft member, a ring portion, and an oil seal disposed between the ring portion and the center shaft member. The oscillating internally meshing reduction mechanism is fixed to a first member and rotates the second member relatively with respect to the first member. An output member is arranged at the side of an external gear in an axial direction so as to output a relative rotation of an internal gear with the external gear. The center shaft member is fixed to the output member, and has a shaft portion extending up to the side opposite to the external gear in the axial direction of the output member. The ring portion is integrally formed with the first member and faces to the shaft portion of the center shaft member. The oil seal is disposed between the ring portion and the shaft portion. | 12-11-2008 |
| 20120244984 | SPEED REDUCER, ROBOT HAND AND ROBOT - Through holes are formed in a revolving gear which revolves while being engaged with a ring gear, and penetration pins which are configured to extract rotation of the revolving gear are inserted in the through holes. The ring gear and the revolving gear are divided into halves in the thickness direction. Two sheets of ring gears are biased to rotate in reverse directions. | 09-27-2012 |
| 20120244983 | SPEED REDUCER, ROBOT HAND AND ROBOT - Through holes are formed in a revolving gear which revolves while being engaged with a ring gear, and penetration pins on which ring members of a circular ring shape are mounted outside are inserted in the through holes. Further, the ring member is mounted to the penetration pin through an elastic member. | 09-27-2012 |
| 20120244981 | SPEED REDUCER, ROBOT HAND AND ROBOT - Through holes are formed in a revolving gear which revolves while being engaged with a ring gear, and penetration pins for extracting rotation of the revolving gear are inserted in the through holes. The inner circumference of each through hole has a shape which becomes narrow toward its one end. A sliding member having a shape which becomes thin toward its one end is engaged with each penetration pin. The sliding member is biased in a tapered direction thereof by a biasing member to be in contact with the inner circumference of the through hole. | 09-27-2012 |
| 20120244982 | SPEED REDUCER, ROBOT HAND AND ROBOT - Through holes are formed in a revolving gear which revolves while being engaged with a ring gear, and penetration pins are inserted in the through holes. An elastic member having a circular ring shape, which is formed so that an inner diameter thereof can move with respect to an outer diameter thereof, is mounted to either an inner circumferential surface of the through hole or an outer circumferential surface of the penetration pin. Thus, the through hole and the penetration pin do not interfere with each other, and thus, it is possible to set a small clearance between the through hole and the penetration pin to such a degree, while preventing a speed reducer from being in a locked state due to interference. As a result, it is possible to suppress a backlash between the through hole and the penetration pin. | 09-27-2012 |
| 20110009224 | ECCENTRIC SPEED REDUCER - There is provided an eccentric speed reducer that achieves improved output torque without increasing the outer radial dimension of a casing. The strut includes, at the basal portion of a peripheral side surface where the strut is continuous with the base carrier, first curved portions and second curved portions that are in a form of a curved surface having a different radius of curvature. The first curved portions are provided at the supporting hole-facing sides of the strut that are disposed facing the rotation supporting holes. The second curved portions are provided between an outer side located in the strut at an outer position in the radial direction of the casing and on the side facing the inner circumference of the casing, and supporting hole-facing sides. The second curved portions have a larger radius of curvature than the first curved portions. | 01-13-2011 |
| 20110015023 | ECCENTRIC SPEED REDUCER - An eccentric speed reducer is provided with which it is possible to achieve improved output torque without increasing the outer radial dimension of the casing. A tapered side is formed on at least part of a peripheral side surface of struts | 01-20-2011 |
| 20110015024 | GEAR DEVICE - A gear device has an outer cylinder fixed to a first mating member and a crankshaft inside the outer cylinder. An external gear is mounted to an eccentric portion of the crankshaft and meshes with internal teeth of the outer cylinder. A carrier is fixed to a second mating member. Rocking rotation of the external gear rotates the carrier coaxially to the outer cylinder. A cylindrical body is inserted in an axial through-hole of the carrier. The carrier has a first portion on one end of the cylindrical body and a second portion on an axially intermediate portion of the cylindrical body. The other end of the cylindrical body extends toward a corresponding mating member while protruding axially beyond the second portion. An outer diameter of remaining portions of the cylindrical body do not exceed an outermost diameter of the portion on which the first and second portions are fit. | 01-20-2011 |
| 20100056316 | GEAR TRANSMISSION - An external gear has a number of teeth differing from a number of teeth of an internal gear, and is maintaining in a meshing state with the internal gear. A center through hole and an offset through hole are formed in the external gear. The center through hole is formed at the center of the external gear, whereas the offset through hole is formed at a position offset from the center of the external gear. Column-shaped member of a carrier passes through the offset through hole. A pair of supporting members of the carrier respectively supports each end of the column-shaped member. A pair of grooves is formed on a surface of a shaft of a crank member at positions between which an eccentric rotation member of the crank member is interleaved. First rolling elements and first outer races are arranged between the supporting members and the grooves. The shaft of the crank member is supported so as to be capable of rotating with respect to the carrier and incapable of moving in its axial direction. | 03-04-2010 |
| 20100261567 | ECCENTRICALLY OSCILLATING SPEED REDUCER - There is provided an eccentrically oscillating speed reducer capable of reducing a number of parts more than that of a background art. | 10-14-2010 |
| 20110028259 | GEAR TRANSMISSION - A gear transmission comprises an internal gear member, a carrier, an external gear and a first shaft. An internal gear is formed on an inner circumference of the internal gear member. The carrier is positioned coaxially with an axis of the internal gear and is rotatably supported on the internal gear member. The external gear meshes with the internal gear and is supported on the carrier in an eccentrically rotatable manner. The first shaft extends through the carrier along the axis of the internal gear, is rotatably supported on the carrier and transmits torque inputted at one end to the other end thereof | 02-03-2011 |
| 20110092331 | HARMONIC GEAR DEVICE - A harmonic gear device ( | 04-21-2011 |
| 20100004086 | REDUCTION GEAR TRANSMISSION AND SOLAR TRACKING PHOTOVOLTAIC POWER GENERATION UNIT UTILIZING THE SAME - A first reduction gear unit has a first input shaft that rotates in accordance with the rotation of an output shaft of a motor, a first external gear that revolves orbitally around an axis line of the first input shaft, and a first internal gear that has a number of teeth differing from the number of teeth of the first external gear. A second reduction gear unit comprises a crankshaft that rotates in accordance with the rotation of a first output shaft, a second external gear having a through hole formed at a center itself, a cylindrical member passing through the through hole of the second external gear, a second internal gear that has a number of teeth differing from the number of teeth of the second external gear, and a second output shaft that rotates around an axis line of the second internal gear. The first reduction gear unit is disposed between an outer circumferential surface of the second reduction gear unit and an inner surface of the cylindrical member. | 01-07-2010 |
| 20120065018 | GEAR REDUCTION ASSEMBLY AND WINCH INCLUDING GEAR REDUCTION ASSEMBLY - A gear reduction assembly may include an input shaft, a first spur gear, and a second spur gear. The first and second spur gears may be coupled to one another. At least one of the first spur gear and the second spur gear may be associated with the input shaft such that the input shaft drives at least one of the first and second spur gears. The gear reduction assembly may further include a first internal gear engaged with the first spur gear, a second internal gear engaged with the second spur gear, and a hub associated with the first internal gear The first and second internal gears have a first number of teeth and a second number of teeth, respectively, and the first number of teeth differs from the second number of teeth by from one to five teeth. The gear reduction assembly may be included in a winch. | 03-15-2012 |
| 20120115666 | LARGE-RATIO SPEED CHANGING APPARATUS - A speed changing apparatus for changing an input speed to an output either greatly slower or faster, the apparatus has a coaxial pair of ring gears that includes a large ring gear having a pitch diameter A and a small ring gear having a pitch diameter D. A coaxial pair of spur gears includes a large spur gear having a pitch diameter B and a small spur gear having a pitch diameter C. The large spur gear meshes with the large ring gear and the small spur gear meshes with the small ring. A carrier member is connected to one of the input and output shafts of the apparatus. Two gears of one of the two coaxial pairs being fixed together to operate epicyclically on the carrier. One gear of the other of the two coaxial pairs being fixed to the frame of the apparatus and the other gear being connected to the other of the input and output shafts. In the apparatus, the four gears satisfy the dimensional relationship of A=K+i, B=K, C=K−j and D=K+i−j. | 05-10-2012 |
| 20120283063 | ADJUSTMENT FITTING - Adjustment fitting, in particular for a motor vehicle seat, having a first fitting part and having a second fitting part that is rotationally adjustable relative to the first fitting part about an axis of rotation, wherein the first fitting part has associated with it an outer wheel with internal teeth, in which wheel is inserted, in the manner of a wobble mechanism, an inner wheel with external teeth hat is associated with the second fitting part, and wherein the inner wheel forms a receiving space that is eccentric to the axis of rotation, and having an eccentric cam rotatably inserted in the eccentric receiving space, having a drive shaft for driving the eccentric cam. A central seal is placed in an axial gap between the two fitting parts. | 11-08-2012 |
| 20100009801 | REDUCTION GEAR TRANSMISSION - A reduction gear transmission, a kind of eccentrically-oscillating-type reduction gear transmission, is provided with an internal gear, an external gear, a carrier, a crank member and a bearing mechanism. The external gear comprises a through hole at a position offset from its central axis. The carrier comprises a support shaft that extends into the through hole of the external gear. The crank member comprises a though hole into which the support shaft extends and an eccentric member that engages inside the through hole of the external gear. The central axis of the eccentric member is offset from a central axis of the support shaft. The bearing is disposed between the support shaft and the crank member, and supports the crank member such that the crank member is capable of rotating with respect to the central axis of the support shaft. In this reduction gear transmission, a clearance that extends along the support shaft between the carrier and the inner ring is narrower than a clearance between the carrier and an end face of the crank member. | 01-14-2010 |
| 20090017955 | Reduction Gear Box - The manufacturing process of a reduction gear box in which a rotation direction converting part and a reduction part are joined together is simplified by unitizing both the rotation direction converting part and the reduction part and by manufacturing the reduction gear box by assembling the rotation direction converting unit and the reduction unit. | 01-15-2009 |
| 20120264556 | Translating Gear Set with Linkages - A transmission utilizing a translating gear and links to provide a high speed ratio in a small, efficient package. A gear set has an input and an output, with a speed ratio between the input and the output. The gear set has one gear that rotates and that provides a circular path for another gear. The rotational gear is attached to the input or the output. The other gear is engaged with the rotational gear and translations on a circular path. The second gear is connected with linkages to the other of the input or the output which resembles a crankshaft FIG. | 10-18-2012 |
| 20110275469 | GEAR TRANSMISSION - A gear transmission comprises an internal gear, an external gear, a first gear, a crankshaft, a two-stage gear and a second gear. The first gear is affixed to an end of the crankshaft, which eccentrically rotates one of the internal gear and the external gear. The two-stage gear comprises a center gear and an outer-toothed ring gear. The center gear meshes with the first gear. The outer-toothed ring gear surrounds the first gear. The second gear meshes with the outer-toothed ring gear and transmits torque from a motor to the two-stage gear. The two-stage gear is configured such that the center gear and the outer-toothed ring gear are each at least partially disposed in a common plane that crosses the rotational axis of the gear transmission. | 11-10-2011 |
| 20130023373 | TRANSMISSION - A Continuous Ambulatory Haemofiltration device consisting of an outer casing, multifunction pump, haemofilter, reversed osmosis filter, power source, drainage bag, blood lines and fluid lines. Haemofiltrate from the haemolfilter is moved to a reversed osmosis filter. Ultrafiltrate fluid from the reversed osmosis filter flows to an out-flow tube of the haemofilter venous line through a specific fluid line. The exit of the reversed osmosis filter is connected to a drainage bag. A multifunction pump moves blood from a permanent jugular catheter to the haemofilter, and fluids between the haemofilter, reversed osmosis filter, venous line and drainage bag. An electrode is placed at the in-flow tube of the haemofilter to measure incoming blood osmolality. An electrode is connected to a microprocessor that is further connected to a computer-controlled valve at an out-flow line of the reversed osmosis filter. A microprocessor is connected with a memory card. | 01-24-2013 |
| 475163000 | Wabbler transmission | 8 |
| 20090124446 | ECCENTRIC OSCILLATING GEAR MECHANISM AND INDUSTRIAL ROBOT JOINT CONSTRUCTION USING THE SAME - There is provided an eccentric oscillating gear mechanism including an internal gear, an external gear meshing with the internal gear, a crankshaft for moving the external gear eccentrically, and a carrier for supporting rotatably the crankshaft, the internal gear and the carrier being made to rotate relatively, wherein a cylindrical tube body, which penetrates the eccentric oscillating gear mechanism in an axial direction, is supported rotatably on the carrier. | 05-14-2009 |
| 20090005207 | Gear stage of an actuating drive - In the case of a gear stage ( | 01-01-2009 |
| 20110086738 | TRANSMISSION - In one embodiment, a transmission includes: a wobbler having an outer periphery tiltable with respect to a wobble axis of rotation; a set of freewheeling gears disposed in a fixed relationship with respect to one another, each gear having a gear axis of rotation about which the gear may rotate different from the gear axis of rotation of each of the other gears; one or both of the wobbler and the set of gears rotatable with respect to one another about the wobble axis of rotation; and each gear operatively connected to the wobbler simultaneously with the other gears at a place on the periphery of the wobbler different from the place at which each of the other gears is operatively connected to the wobbler such that each gear rotates on its axis of rotation as the wobbler wobbles or as the wobbler induces a wobble in another part. | 04-14-2011 |
| 20110237381 | WOBBLE MECHANISM - A wobble mechanism is provided with a wobble member, which is arranged on an input shaft and has at least one row of force transmitting elements interacting with secondary force transmitting elements arranged on the input side and output side. At least one row of force transmitting elements is formed by magnets ( | 09-29-2011 |
| 20100222174 | WOBBLE MECHANISM - A wobble mechanism, in particular for a two-part adjustment fitting of a vehicle seat, is provided with a flat housing with internal toothing and with an oscillating wheel with external toothing, which is arranged within the housing and is eccentrically rotatable around a center axis of the housing. The external toothing of the oscillating wheel engages with the internal toothing of the housing. The housing is divided into at least two housing parts along a dividing plane. | 09-02-2010 |
| 475164000 | Single member has oppositely axially facing tooth sets | 3 |
| 20130079188 | KINEMATISM WITH ORBITAL MOVEMENT WITH FIXED ORIENTATION - A kinematism is described with orbital movement with fixed orientation comprising at least one first and one second motion transmitting means, respectively connected to a thrust system and to a driven system, mutually facing and mutually frontally cooperating through respectively a first and a second mechanically cooperating means, at least the first transmitting means rotating around a main rotation axis, the first mechanically cooperating means being adapted to apply a series of points of force to the second mechanically cooperating means so that a set of positions, instant by instant occupied in the space by each one of such points of force, individually considered, substantially describes a Lemniscate curve as Mobius ring, the thrust system being slanted with respect to the main rotation axis and symmetrical and coaxial with a slanted axis around which the curves of such points of force are symmetrically distributed, further comprising rotation-preventing means. | 03-28-2013 |
| 20100144481 | Hinged Fitting - The invention relates to a hinged fitting for two components of a vehicle seat which can pivot with respect to each other about an axis ( | 06-10-2010 |
| 20100179012 | GEAR SET AND NUTATION GEAR SET - A first gear set includes an input member that serves as a first gear and an inner ring that serves as a second gear. A first end of the inner ring is inclined with respect to the input member and is in mesh with the input member. The input member has a plurality of retention grooves that are formed in an input member body and a plurality of pins that are retained in the respective retention grooves and that respectively constitute teeth of the input member. The first end has a plurality of tooth grooves that are engageable with the pins. A resultant force of forces applied to each pin from the retention groove and the tooth groove urges the pin toward the retention groove. | 07-15-2010 |
| 475165000 | Friction gearing | 5 |
| 20130059692 | MECHANICAL SPEED VARIATOR WITH ECCENTRIC DYNAMIC MASSES HAVING A BALANCED STRUCTURE - A mechanical speed variator is provided with eccentric masses having a balanced structure. The variator includes a drive shaft, provided with a cam composed of a circular disk eccentrically mounted on the drive shaft, which drives the driven shaft in rotation with interposition of a series of eccentric masses, each of them being composed of a circular disk with eccentric circular hole in which another mass of lower dimensions is ratably housed. The larger mass is housed and rotates inside the eccentric hole of a ring coupled with bolts to a flange and counter flange, respectively mounted on the driven shaft and the drive shaft. | 03-07-2013 |
| 20120264557 | TORQUE DISTRIBUTOR - A torque distributor includes a friction-drive mechanism having a first roller rotatable together with a first rotary member, partly constituting a torque-transmission path to primary drive wheels, and a second roller rotatable together with a second rotary member, partly constituting a torque-transmission path to secondary drive wheels. Also provided is an eccentric-crank mechanism for revolving the second roller in a direction opposite to a rotation direction of power transmission of the second roller around an eccentric-shaft axis displaced from a second-roller rotation axis to produce a displacement of the second roller from a non-power-transmission position of non-frictional-contact with the first roller to a radially-loaded power-transmission position of frictional-contact with the first roller. Although the friction-drive type is used, the torque distributor enables torque-distribution-control mode switching between them, while ensuring high-precision torque-distribution control by avoiding a polarity of moment acting on a rotational-position-control system for an eccentric crank from being reversed. | 10-18-2012 |
| 475166000 | Variable speed | 3 |
| 20090062053 | Rotation Output Device - A compact rotation output device is realized by disposing an output shaft of a reduction gear transmission coaxially with an axis line of a rotating disk while simultaneously ensuring a space in a rear face of the rotating disk through which a columnar bar or wiring etc. can pass. | 03-05-2009 |
| 20090197731 | Continuously variable transmission and operating method therefor - The invention relates to a continuously variable transmission ( | 08-06-2009 |
| 20110077118 | Power Transmission System with Continuously Variable Speed Control - The present invention is directed toward an apparatus for continuous speed variation of an output member with respect to a primary input member. In particular, the present invention provides a device having an output that rotates at reduced speed and increased torque relative to its prime input through the low friction, rolling engagement of its members, or alternatively, at increased speed and reduced torque for overdrive applications. Furthermore, the speed of the output member may be varied continuously and infinitely between the apparatus's lowest and highest ratio via a secondary input member and its low friction, rolling engagement with the device's members. | 03-31-2011 |
| 475167000 | Link chain gearing | 1 |
| 20120252622 | TREADLE-DRIVE ECCENTRIC WHEEL TRANSMISSION WHEEL SERIES WITH PERIODICALLY VARIED SPEED RATIO - The present invention is structured by using one or both of an active wheel and a passive wheel being composed of an eccentric transmission wheel and being combined with a synchronous transmission belt for forming an eccentric wheel transmission wheel series, so that in the reciprocal treadle performed by the human's feet, when the feet input forces at different angles from the treadle shafts of the treadles to an active wheel shaft combined on the active wheel through cranks, the active wheel forms different transmission speed ratios relative to the passive wheel according to the treadle angle. | 10-04-2012 |
| 475168000 | Gear teeth comprise rolling bodies | 14 |
| 20130035191 | SPEED REDUCER - A speed reducer is proposed whose rollers are axially long relative to the axial length of its cage to extend its lifespan. The speed reducer includes an input shaft ( | 02-07-2013 |
| 20090118050 | Reduction Gear Transmission and Manufacturing Method Thereof - A reduction gear transmission is realized in which the total speed reduction ratio is adjusted to a desired value without making any changes to a rotation direction changing gear mechanism or a speed reduction unit. | 05-07-2009 |
| 20090270215 | TRANSMISSION - Described is a transmission, having a hollow cylindrical base body, which has an internal toothing and a rotational axis, with end sides in which are rotatably mounted a driven input element and an output element, wherein the output element comprises two rotary bodies which can be or are connected to one another in a non-rotatable fashion and which have a circular cross section transversely with respect to the rotational axis and between which are arranged at least one gearwheel and means for converting planetary movements of the gearwheel into rotational movements of the output element. In the transmission, the forces which hold the output element together and the bearing forces which act between the output element and the base body are independent of one another. | 10-29-2009 |
| 20080207377 | Oscillating internally meshing planetary gear system and method for manufacturing eccentric body shaft - The oscillating internally meshing planetary gear system has the configuration of rotating external gears inside an internal gear oscillatingly through the intermediary of eccentric bodies so that a relative rotation between the internal gear and the external gears is taken out through a pair of first and second carriers arranged on both axial sides of the external gears. In this configuration, eccentric body shafts are supported by the first and second carriers through needles. Thrust receiving means for restricting axial movement of the eccentric body shafts are arranged between step portions formed on the eccentric body shafts and the first and second carriers. | 08-28-2008 |
| 20080287244 | Simple structural speed differential mechanism - A simple structural speed differential mechanism installed between a driving shaft and two driven shafts comprises a transfer shaft with a polygonal outer shape; a middle section of the transfer shaft being a gear which is engaged to the driving shaft; two roller frames installed at two ends of the transfer shaft; each roller frame being installed with a plurality of penetrating openings; the number of the penetrating openings being equal to that of the side surfaces of the transfer shaft; each penetrating opening receiving a rolling post; and two shaft connecting units; an outer side of each roller frame being installed with a shaft connecting device; one end of each shaft connecting unit being installed to an outer side of the roller frame; and another end of the shaft connecting unit serving for assembling the driven shafts. | 11-20-2008 |
| 20100216585 | Rolling Ball Type Two-Stage Low Speed Changer Device - In a rolling ball type two-stage low speed changer device | 08-26-2010 |
| 20110319217 | ROLLER TYPE TRANSMISSION DEVICE - In a roller type transmission device | 12-29-2011 |
| 20110319219 | DECELERATOR - An in-wheel motor drive unit ( | 12-29-2011 |
| 20110319216 | GEAR STAGE - A gear stage ( | 12-29-2011 |
| 20110319218 | ROLLER TYPE TRANSMISSION DEVICE - In a roller type transmission device | 12-29-2011 |
| 20120015774 | Eccentric dual stepping gear roller bearing system - An eccentric dual stepping gear roller bearing system, which consists of an input shaft and an output shaft associated with a gear ring holding an exterior row of equally spaced ball bearings, an output gear with an interior row of lesser diameter with fewer equally spaced ball bearings held at a different plane relative the exterior row, and at least one stepping gear with exterior and interior stepping gears having differing radii joined off-set on top of one another and eccentrically mounted on the drive shaft to act on the interior and exterior rows of roller bearings, which act as gear teeth to rotate the output gear to reduce shaft output. | 01-19-2012 |
| 20110092332 | COMPACT BACKDRIVE RESISTANT TRANSMISSION - A configurable power transmitter device having an input structure, an output structure, and a torque conversion assembly. The input, output, and torque conversion assembly are arranged to rotate with respect to each other and to be contained within a housing structure. The power transmitter includes structure for transforming concentric rotational motion from the input structure into eccentric motion of the transmitting structure to concentric rotational motion of the output structure. The power transmitter device has a configuration which has anti-back drive features and which provides self-governing and self-braking capabilities operative on the output structure. | 04-21-2011 |
| 20120289372 | ROTARY SPEED-CHANGE TRANSMISSION - A transmission has a housing having a main axis with a retaining element fixed in the housing and forming a set having a predetermined number of radially extending and angularly equispaced guides. An output element rotatable in the housing about the axis is formed with an array having a number smaller than the predetermined number of radially inwardly open recesses axially adjacent the guides. An input element rotatable in the housing about the axis has a radial outer and generally circular peripheral surface centered on an axis radially offset from the main axis. Respective transmission elements radially displaceable in the guide grooves between inner and outer positions each have a shaft extending substantially parallel to the axis with a guide section engaged and radially shiftable in the respective guide groove, a driven section engageable in the recesses, and a drive section radially engageable with the input-element surface. | 11-15-2012 |
| 20130023374 | SPEED REDUCER INCORPORATING PORTION STRUCTURE, INCORPORATING METHOD, AND ECCENTRIC OSCILLATING TYPE SPEED REDUCER - There is provided a speed reducer incorporating portion structure for a plurality of industrial machines in which an eccentric oscillating type speed reducer having an internal gear and an external gear that rotates in an oscillating manner while internally meshing with the internal gear is incorporated. The speed reducer may be incorporated in the plurality of industrial machines, respectively, so that the position of a meshing portion when the external gear is assembled to the internal gear has a specific phase relationship common to the plurality of industrial machines with respect to a specific part of an industrial machine in which the speed reducer is incorporated. | 01-24-2013 |
| 475169000 | Means to change speed ratio between input and output | 3 |
| 20090017956 | Reduction gear with increased number of meshed teeth - A reduction gear includes a case including a hollow cylinder having teeth on its inner wall; a ring gear having outer teeth meshed with the teeth of the cylinder, and inner teeth; and an eccentric gear assembly mounted in the cylinder and including a hollow eccentric shaft including rear and front eccentric sections, and first and second gears rotatably secured onto the rear and front eccentric sections respectively. Rotating an input shaft in a first speed will rotate the eccentric shaft to rotate the first and second gears around the inner teeth of the ring gear eccentrically, thereby rotating the output shaft in a second speed lower than the first speed. The invention has an increased number of meshed teeth between each of the first and second gears and the ring gear so as to distribute a radial load to more teeth in rotation. | 01-15-2009 |
| 475170000 | Variable eccentricity | 2 |
| 20090036250 | Reduction Gear Device - A reduction gear device utilized in a joint portion of an industrial robot, durability of the reduction gear device being increased in the case where torque applied to the reduction gear device is high and the reduction gear device is utilized at a high operation rate. | 02-05-2009 |
| 20120178577 | CONTINUOUSLY VARIABLE TRANSMISSION AND AUTOMOBILE DRIVE SYSTEM - A continuously variable transmission includes a one-way clutch, a plurality of linking members, and a variable gear ratio mechanism. The one-way clutch includes an input shaft, a plurality of eccentric discs, a first crank member, a second crank member, an output member, an input member, and an engaging member. The input shaft is rotatable about an input center axial line under the rotational force. The plurality of eccentric discs is disposed around the input center axial line at equal intervals in a circumferential direction. | 07-12-2012 |
| 475175000 | With releasable clutch or brake | 2 |
| 20100056317 | ADJUSTER - An adjustment fitting ( | 03-04-2010 |
| 20120277050 | FITTING FOR A VEHICLE SEAT - A fitting for a vehicle seat is disclosed, in particular for a motor vehicle seat. First and second fitting parts are geared with one another via a meshing gearwheel and gear rim. A peripheral eccentric is driven by a drive element for driving a relative rolling movement of the gearwheel and the gear rim, and the first fitting part receives the eccentric which is supported on the second fitting part. A blocking element blocks the eccentric in the non-driven state of the fitting via toothing on the first fitting part, and releases the eccentric when driven. The gear rim is formed on the first fitting part and the gearwheel is formed on the second fitting part. | 11-01-2012 |
| 475176000 | Gear has plural circumferential tooth sets | 2 |
| 20090298636 | Gear-type reduction unit, particulary for rotary platforms for sun-following devices - A gear-type reduction unit, particularly for rotary platforms for sun-following devices, which comprises two main components, associated for rotation with respect to each other about a main rotation axis, a driving shaft, supported for rotation about the main axis, by a first one of the main components, a transmission element provided with two pinions, which are jointly connected and have an axis that is eccentric with respect to the main axis, a connecting member for mutual eccentric rotation of the transmission element with respect to the driving shaft, a first ring gear and a second ring gear with internal sets of teeth, which are jointly connected respectively to the first and second of the main components and mesh respectively with the first and the second of the pinions, and a play recovery device to take up slack between the pinions and the ring gears. | 12-03-2009 |
| 475177000 | Internal and external tooth sets | 1 |
| 20090192004 | Oscillating inner gearing planetary gear system - An oscillating inner gearing planetary gear system is provided which does not need to occupy a large space even in a state where a driving source is joined. In particular, the axial length thereof can be shortened, and a large diameter hollow shaft therethrough can be formed. The oscillating inner gearing planetary gear system ( | 07-30-2009 |
| 475178000 | Circumferentially spaced connector pins | 7 |
| 20090156347 | Power Transmission Device - An object is to provide a compact power transmission device which comprises a small number of parts and is compact in size, and which can transmit the rotation of a rotary shaft to a wheel with a high reduction ratio. | 06-18-2009 |
| 20090270216 | Apparatus and method for improving radial stresses in a gear transmission mounting - There is provided a pin and mounting assembly for supporting a gear of an epicyclic or parallel shaft transmission. The pin and mounting assembly comprises: a mounting ( | 10-29-2009 |
| 20080305909 | REDUCTION GEAR - A reduction gear includes a reduction mechanism, which includes: an external gear eccentrically rotatable about an input shaft; an internal gear internally meshing with the external gear and having a small number of difference between the teeth of the internal gear and the external gear; a disk for extracting only a rotational component of the external gear; an output shaft; and gears for transmitting the rotational component of the external gear from the disk to the output shaft. The disk, the gears and the output shaft are aligned in a direction perpendicular to an axial direction of the input shaft. | 12-11-2008 |
| 20080242465 | Transmission for vehicle steering apparatus - A vehicle steering apparatus having a drive ( | 10-02-2008 |
| 20120258835 | REDUCTION GEAR - A reduction gear includes an outer circumference internally toothed gear having first teeth; and an inner circumference externally toothed gear having a second teeth. The reduction gear relatively rotates while the first teeth and the second teeth engage each other. At least one of the first and second teeth has an elastic structure inside the tooth so that the tooth is elastically deformable. | 10-11-2012 |
| 20100292040 | REDUCTION GEAR - The reduction gear includes a plurality of first and second rollers that are disposed so as to directly come into rolling contact with the outer peripheries of first and second eccentric bodies; first and second retainers that maintain gaps between the first and second rollers in the circumferential direction of the first and second eccentric bodies; and first and second guide bodies of which the movement in the axial direction is restricted and which restrict the movement of the first and second rollers in the axial direction by coming into direct contact with ends of the first and second rollers. | 11-18-2010 |
| 475179000 | Roller bearing surrounds pin | 1 |
| 20100179013 | CENTER CRANK ECCENTRICALLY OSCILLATING SPEED REDUCER - The present invention provides a center crank eccentrically oscillating speed reducer enabled to increase the available cross-sectional area of a hollow hole, while the generation of large noises is suppressed, as compared with the conventional center crank eccentrically oscillating speed reducer. | 07-15-2010 |
| 475180000 | Particular gear tooth | 5 |
| 20130059693 | High Efficient and High Power Plane Centric Gear Unit - A plane centric gear unit has a circumferentially floating ring gear | 03-07-2013 |
| 20100004087 | POWER TRANSMISSION DEVICE AND METHOD OF PRODUCING THE SAME - The power transmission device has an internally meshing planetary gear mechanism that has an input shaft, an eccentric body provided on the input shaft, an externally toothed gear eccentrically oscillating via the eccentric body, and an internally toothed gear with which the externally toothed gear internally meshes. The externally toothed gear is assembled to the internally toothed gear in an interference fit. | 01-07-2010 |
| 20110237382 | WAVE GEAR DEVICE HAVING THREE-DIMENSIONALLY CONTACTABLE SHIFTED TOOTH PROFILE - Disclosed is a wave gear device ( | 09-29-2011 |
| 20100113206 | ECCENTRIC OSCILLATING TYPE SPEED REDUCER AND APPARATUS FOR ROTATING STABILIZER SHAFT USING THE ECCENTRIC OSCILLATING TYPE SPEED REDUCER - The present invention reduces the manufacturing cost of an eccentric oscillating type speed reducer | 05-06-2010 |
| 20120108381 | ECCENTRIC OSCILLATING GEAR DEVICE AND ASSEMBLING METHOD FOR CRANKSHAFT IN ECCENTRIC OSCILLATING GEAR DEVICE - An eccentric oscillating gear device comprises a crankshaft having an eccentric portion, an externally toothed gear having external teeth and a through-hole in which the eccentric portion is inserted, an outer cylinder, and a carrier. The carrier rotatably supports the crankshaft. The outer cylinder has internal teeth meshed with the external teeth of the externally toothed gear. The eccentric oscillating gear device is provided with rotational phase adjusting section for setting an orientation of the crankshaft about an axis thereof, on the basis of orientations of the outer cylinder and the carrier about an axis thereof. | 05-03-2012 |
| 475181000 | Particular counterweight | 1 |
| 20100048342 | Rotary transmission - An apparatus for transmission of rotation between a first rotational member and a second rotational member comprises a first gear member mounted for rotation about an axis and coupled for rotation to the first rotational member. An eccentric gear arrangement is mounted eccentrically with respect to the axis and has a first eccentric gear portion for engagement with the first gear member and a second eccentric gear portion for engagement with a second gear member. Crank means couple the eccentrically mounted gear arrangement to the second rotational member, whereby orbital motion of the eccentric gear arrangement about the axis is transmitted to the second rotational member. The first and second eccentric gear portions are coupled for rotation with each other, and the first and second gear members are rotationally independent of each other. | 02-25-2010 |
