Abstract: A power unit for a vehicle includes a buffering device provided on a final shaft parallel to a countershaft of a speed change gear. The buffering device includes a damper gear wheel supported for relative rotation on the final shaft, a lifter coupled against relative rotation but for relative movement in an axial direction on the final shaft and engaged by a cam provided on one face of the damper gear wheel, a spring retainer supported at a position on the final shaft spaced apart from the lifter, and a coil spring provided between the lifter and the spring retainer for biasing the lifter toward the damper gear wheel. The buffering device is disposed on the final shaft and positioned between a pair of imaginary planes, the pair of imaginary planes extending perpendicularly to an axial line of the idle shaft and passing opposite ends of the idle shaft.

Abstract: A gear device includes a gear, a pin, a plate member, a retainer portion, a contact part and a non-contact part. The pin is inserted into an opening of the gear. The plate member is disposed on a face of the gear and attached along an outer peripheral surface of the pin. The retainer portion is disposed in a vicinity of an end portion of the pin, with the plate member being interposed between the retainer portion and the face of the gear. The contact part is formed by faced surfaces of the retainer portion and the plate member with parts of the faced surfaces annularly making contact in a position closest to an outer peripheral surface of the pin. The non-contact part is formed by the faced surfaces with parts of the faced surfaces not making contact in a position away from the outer peripheral surface of the pin.

Abstract: An exemplary gear transmission device includes a driving assembly including a driving shaft, a shaft coupling, a circular driving gear, a resilient mechanism and a driven gear engaging with the driving gear. The shaft coupling is fixed to the driving shaft and rotatable in unison with rotation of the driving shaft. The circular driving gear substantially surrounds and is operatively coupled to the shaft coupling and rotatable under urging of the shaft coupling. The resilient mechanism is held between the driving gear and the shaft coupling and is elastically deformable in circumferential directions of the shaft coupling. When the driving gear moves axially and collides with the driven gear without meshing with the driven gear, the driving gear rotates slightly relative to the shaft coupling thereby elastically deforming the resilient mechanism and the driving gear reaches a position where it can mesh with the driven gear.

Abstract: A driving force transmission device includes a first rotating portion having a first facing portion, and a second rotating portion having a second facing portion. The second rotating portion has an operation range partially overlapping with that of the first facing portion. A cushioning member is provided between the first facing portion and the second facing portion. The cushioning member is deformed by being applied with a pressure. The first rotating portion and the second rotating portion transmit a driving force in a state where the cushioning member is deformed by application of the pressure.

Abstract: A vibration isolating structure for a power unit. The power unit includes an internal combustion engine equipped with transmissions. The vibration isolation structure includes torque dampers disposed between transmission gears of the transmission and a power transmission shaft supporting the transmission gears.

Abstract: A torque transmission assembly includes two structural component parts for coupled engagement to one another so as to rotate together around an axis of rotation, a first of these structural component parts has an inner circumferential toothing and a second of these structural component parts has an outer circumferential toothing for a rotary coupling engagement with the inner circumferential toothing. The teeth in one toothing of an inner circumferential toothing and outer circumferential toothing are bounded by end faces in a first axial end area of the one toothing. The one toothing has at least one tooth with an end face which is extended forward axially relative to the end faces of the other teeth of the one toothing, and the end face of at least one tooth of the one toothing with the end face which is extended forward axially forms a circumferentially deflecting end face for the other toothing.

Abstract: A braking device for a rotating shaft and a gear motor system using the same. The braking device includes a brake subassembly, a rotating shaft, and a sleeve. The rotating shaft is sheathed with the sleeve. The brake subassembly includes an adjustable screw, a spring, and a brake disc. One end of the spring presses on top of the brake disc and the other end presses at the bottom of the adjustable screw. After the adjustable screw is fixed, the bottom surface of the brake disc is tightly against the outer surface of the sleeve. When the adjustable screw is adjusted, the amount of compression of the spring is changed and the pressure imposed on the brake disc by the spring varies accordingly such that the friction between the brake disc and the sleeve is changed.

Abstract: Provided is a strain wave gearing having a high stiffness and no limitation imposed on rotation, and a robotic arm including the strain wave gearing. A strain wave gearing includes an electric motor and a strain wave gearing reducer. The strain wave gearing reducer includes: an outer ring member including a first internal gear; a pair of second internal gears each having internal teeth formed along an inner periphery thereof, and the pair of second internal gears differing from the first internal gear in number of teeth; a flexible gear; and a cam member, which distorts the flexible gear in a radial direction to cause the flexible gear to engage with the first internal gear and the pair of second internal gears. The pair of second internal gears is fixed to a pair of fixing plates coupled to each other by a shaft penetrating the cam member.

Abstract: A system and method to control vibrations exerted on a non-vibrating structure. The system includes an adjustable variable stiffness support securely attached to both the non-vibrating structure and a vibrating structure. A driver operably associated with the variable stiffness support is configured to selectively adjust the variable stiffness support. A control system in data communication with both a sensor system and the driver includes an algorithm to determine whether adjustment of the variable stiffness support is required.

Abstract: In a molded plastic part 1 including a body 2 constituting a design surface 2a and a reinforcing structure 3 projectingly provided on a design back surface 2b of the body 2, the body 2 and the reinforcing structure 3 being integrally molded by injection molding, the reinforcing structure 3 is formed by a combined body of a plurality of transverse ribs 7a, 7b, 7c and 7d which are arranged at appropriate intervals in the resin flow direction at the time of injection molding in the direction intersecting with the resin flow and longitudinal ribs 6p and 6q which extend at right angles to the transverse ribs and connect the transverse ribs to each other. The transverse ribs are connected to the design back surface 2b, and a gate 8 for injection molding is set on one of the transverse ribs. The longitudinal ribs are disposed so as to be separated from the design back surface 2b.

Abstract: A harmonic drive according to the present invention comprises a plurality of internal gears; a band type of flexible gear provided with teeth engaged with each of the internal gears on its outer circumferential surface, the flexible gear having a pitch circumference length shorter than that of said internal gears; and a wave generating part disposed on an inner side of said flexible gear, the wave generating part generating a plurality of harmonic motions by deforming said flexible gear as the wave generating part rotates. Further, said flexible gear is formed integrally to engage with said plurality of internal gears so that the plurality of harmonic motions are overlapped, and one or more of said plurality of internal gears and said flexible gear are formed of profile shifted gears.

Abstract: A divided toothed wheel having two toothed wheel halves which are tensioned in relation to each other. The first toothed wheel half includes a hollow cylindrical collar with a groove, to which the second toothed wheel half is secured in a form-fitting engagement by a securing element inserted into the groove. The divided tooth wheel takes up a minimum amount of space from the axial direction and has two halves which are permanently connected together. The second toothed wheel half has a radially extending recess and the securing element is designed as an elastically shapeable ring which is arranged in a receiving chamber defined by the groove and the recess and the two toothed wheel halves are permanently joined together.

Abstract: An overload protection device in combination with a prime mover and gearbox transmission supplies torque through a gearbox transmission to a load. An input shaft with is driven by the prime mover and rotates therewith. An external spline on the input shaft mates with an input gear having an internal spline. Upon overload of the gearbox transmission, the input shaft fractures an annular groove in the input shaft. A bushing prevents travel of the portion of the input shaft which is driven by the prime mover and which continues to spin after the fracture.

Abstract: A slat controller for a window blind has a gear, a worm member, and a connector. The gear connects to slats through cords, and the worm member having spiral teeth meshed with the gear. The connector has flexible arms, and the flexible arms have teeth. The worm member has teeth normally engaging the teeth of the connector, and the teeth of the worm member disengage the teeth of the connector to protect the meshed gear and the worm member when the user keeps turning the tilting rod beyond the allowable turning range.

Abstract: A gear center-distance maintaining mechanism includes a first support body that rotatably supports a first gear to be rotated by driving force from a driving unit, a second support body that rotatably supports a second gear to be meshed with the first gear so as to transmit rotational force from the first gear to a rotating body, the second support body being movable relative to the first support body in a direction such that the second gear moves away from the first gear, an arc-shaped face provided in the second support body and centered on an axis of the second gear, and a restricting portion provided in the first support body and shaped like an arc centered on an axis of the first gear, the restricting portion restricting the movement of the second support body relative to the first support body by contact with the arc-shaped face.

Abstract: An easily structured swing internal contact type planetary gear device is proposed which can achieve a higher meshing ratio when an involute tooth profile is adapted. Each of an internal tooth of an internally toothed gear wheel and an external tooth of an externally toothed gear wheel is formed with an involute tooth profile. Under a driving condition, one of an internal tooth body of the internally toothed gear wheel and an external tooth body of the externally toothed gear wheel is elastically deformed in an extending direction and the other thereof is elastically deformed in a contracting direction so that the number of meshing teeth becomes larger than the number of meshing teeth under a non-driving condition.

Abstract: First gear for use in a gear set including a second gear has a hub to which are attached a plurality of arms made of an elastic material. Each pair of adjacent arms defines a slot between them into which the arms may bend. The arms can deflect elastically in the plane as a cantilevered beam. Each arm has on the end thereof, a tooth for meshing with a tooth on the second gear to allow transfer of force between the first gear's tooth and the meshing second gear's tooth. A load distributor in contact with at least first and second arms distributes to the second arm at least a portion of force received by the first arm's tooth while the first arm's tooth meshes with a tooth on the second gear. In one embodiment, the load distributor comprises an insert within the slot between the first and second arms.

Abstract: A durable gear strap couples components in an imaging device to a driving force. The gear strap includes a strip having a plurality of rigid sections and a plurality of flexible sections. Gear teeth on the strip enable rotation of a gear to move the gear strap in a track. At least one engagement member extends from one of the rigid sections to couple a component to the gear strap for movement.

Abstract: In one version of this invention, a gear box has mounting means such as a pair of facing walls for mounting the bearings for the axles carrying the gears. Each mounting means supports its bearing with a different stiffness to compensate for different loads imposed by gears that are closer to one of the bearings supporting the axle than the other. The different stiffness of each bearing mounting equalizes load-induced shifts of the position of the bearings holding the axle. Such a mounting equalizes such shifts, allowing the axles to remain substantially parallel and the gears in alignment. Aligned gears better maintain line contact between individual gear teeth, thereby reducing wear and breakage of the teeth.

Abstract: The invention relates to a breaking device for a chain (5) of a screen, comprising a housing formed by first and a second housing parts (10, 20), that are attachable to each other by a detachable coupling. In operational position, first and a second toothed wheel (11, 21) are in engagement with each other and the chain engages onto a sprocket (12) connected to the first toothed wheel (11). The detachable coupling is arranged to release when a pulling force on the chain reaches or exceeds a predetermined threshold value. The first toothed wheel (11) and the second toothed wheel (21) are mutually positioned such that the chain (5) has an engagement side (5A) and a non-engagement side (5B), such that the pulling force (Fup) on the engagement side (5A) can be larger than the pulling force (Fdown) on the non-engagement side (5B).

Abstract: A scissors gear may include a main gear and a sub-gear co-axially combined by a scissors spring therebetween to integrally rotate, a first oil supply hole formed in the main gear or the sub-gear to supply oil from the outside, an oil groove formed in the sub-gear or the main gear to receive the oil by being selectively communicated with the first oil supply hole, and a check valve that is disposed in the main gear or the sub-gear to open/close the oil groove.

Abstract: A configuration of a gear wheel (4, 5) on a main shaft (1) of a transmission, having at least two lay shafts (2, 3). The wheel (4, 5) is designed as a sum wheel or gear wheel, meshes with both of the lay shafts (2, 3), and is movable in the radial direction between lay shafts (2, 3). An elastic element (8, 13) is positioned, between the gear wheel (4, 5) and the main shaft (1), and/or between the gear wheel and the lay shaft to reduce radially movement of the gear wheel (4, 5).

Abstract: A pop-up monitor is provided. A pop-up monitor with a double rack gear includes a driving unit, a rack gear set, and a monitor frame. The driving unit includes a spur gear set having first and second spur gears, and generates first and second rotational motions with the first and second spur gears. The rack gear set includes an outer gear with a rail groove in one surface thereof along, changing the first rotational motion to a first rectilinear motion, and an inner gear with a rail rail-coupled to the rail groove changing the second rotational motion to a second rectilinear motion. The monitor frame includes a support frame supporting a monitor. The monitor frame is fixed by the inner gear which vertically ascends by the second rectilinear motion without forward and rearward movement when the support frame has vertically ascended to a position according to the first rectilinear motion.

Abstract: The present invention relates to an adjustment drive, in particular for a vehicle, for driving a component, comprising a drive unit having comprises a first output shaft, wherein an output unit or an intermediate unit, which is disposed between the input unit and the output unit, can be adapted in a modular manner to the first output shaft.

Abstract: A gear structure for supporting a vertical motion of an electric pop-up monitor is provided. More specifically, a double rack gear structure for supporting a pop-up monitor is disclosed. The rack gear structure includes an outer gear and an inner gear. The outer gear is coupled at a side of the monitor frame to operate integrally with the monitor frame, and enables the vertical motion of the monitor frame with an ascending or descending motion. The inner gear is received inside the outer gear. The inner gear performs an ascending or descending motion simultaneously with the outer gear, and supports forward and rearward or right and left shaking, which occurs in the outer gear, by maximizing a portion overlapping with the outer gear when the outer gear has ascended to the maximum.

Abstract: The invention relates to machine building and may be used in large-size mechanism drives. A gear rim comprises a centre which is a whole piece or comprises at least two sectors. At least two elastic tooth cassettes are located on the sectors, each comprising an elastic metal sheet plate with cut teeth and a plate fixture system upon the centre. The invention allows to significantly increase the service life and reduce the total weight of the structure.

Abstract: The invention relates to a transmission device comprising a first gear wheel and a second gear wheel that is rotatably coupled thereto, wherein a damping element acting in the circumferential direction is provided axially between the gear wheels. According to the invention it is provided that the damping element can be tensioned by the gear wheels during the operation of the transmission device.

Abstract: A transmission assembly including a frame, driving and driven shafts, driving and driven gears and a knob is provided. The shafts are pivotally connected to the frame, and axes of the driving and driven shafts are intersected mutually. The driving gear is disposed at an end portion of the driving shaft, and the driven gear is disposed at an end portion of the driven shaft to engage with the driving gear. The knob is disposed at another end portion of the driving shaft for receiving torque to conduct the rotation of the driving and driven shafts and the driving and driven gears. When the torque is excessively large, the knob rotates against the driving gear, so the torque will not be transmitted to the gears. Moreover, when the gears are stuck, one of the driving and driven gears can move along the axis to increase backlash therebetween.

Abstract: A driveline component with a first drive member, which is rotatable about an axis, a second drive member and a clutch. The second drive member has a hub, which is supported on the first drive member for rotation about the axis, and a transmission portion. The transmission portion, which is configured to engage a flexible power transmitting member, is disposed about the hub and aligned to a transmission axis that is generally perpendicular to the axis. The clutch has a spring and a set of interleaved clutch plates having portions that are coupled for rotation with a respective one of the first drive member and the second drive member. The spring generates a force that is transmitted through the hub such that the clutch plates frictionally engage one another. The location of the transmission portion relative to the transmission axis is unaffected by wearing of the set of clutch plates.

Abstract: A driving device for an electric lock latch, comprises a housing, a motor having a power output shaft connected to a drive shaft with an external thread on a part thereof, an unequal diameter coil spring having a cylindrical spiral in the middle thereof screwing with the drive shaft, and a first and second conical spiral on both end thereof not screwing with the drive shaft, and a lock latch secured to the second conical spiral. The drive shaft is driven and rotated by a motor to pass the rotation power to the cylindrical spiral, and a rotary motion of the drive shaft is converted into a linear motion of the unequal diameter coil spring for moving the lock latch to change the locked and unlocked state of the lock device. Accordingly, the lock structure and the installation thereof may be simplified and the power-saving effect is achieved.

Abstract: A motor assembly includes a motor, a force transmission structure comprising a drive plate and a shaft, and a gear train connecting the motor to the drive plate for transmitting rotation of the motor to the drive plate. The drive plate has a mounting hole with at least three sections interconnected with one another at a common area, the shaft has a toothed portion with at least three teeth fittingly received in the sections of the mounting hole of the drive plate such that the shaft is rotated with the drive plate.

Abstract: An impact absorbing mechanism for absorbing impact generated upon meshing of gears by starting or stopping an electric motor, for example, in a speed reduction gear train of a disk grinder, has the problem that its ease of manufacture and the durability are lowered because small elastic components are located between a driven gear and a driven shaft when an impact absorbing action occurs in the rotational direction in the related art. The present invention is aimed to improve the ease of manufacture and the durability of the impact absorbing mechanism. It is configured to absorb impact by displacing steel balls in a diameter expanding direction by relative rotation of a driven gear and a driven shaft due to rotational power generated upon meshing and by displacing an axial displacement member in an axial direction against an axial elastic member.

Abstract: A system to control a contact force and a positional relationship between members in operable communication is provided. The system comprises a first member, a second member in operable communication with the first member, a contact force and a positional relationship existing between the first member and the second member. The system further comprises first biasing members being configured to bias and position the first member, the contact force and positional relationship being influenced by a response of the first biasing members to the contact forces between the members in operable communication.

Abstract: A compliant gear assembly for a gear train of an internal combustion engine includes a hub subassembly having a first hub component and a second hub component. The first hub component defines a first axis, and the compliant gear assembly includes a gear ring rotatable relative to the hub subassembly and defining a gear ring axis of rotation. The second hub component is movable relative to the first hub component in a direction normal to the first axis between a first stop position at which the gear ring axis of rotation is co-linear with the first axis and a second stop position at which the gear ring axis of rotation is parallel to but not co-linear with the first axis. A compliance mechanism is coupled between the first hub component and the second hub component and biases the second hub component toward the first stop position.

Abstract: A harmonic drive includes a circular rigid internal gear, a circular flexible external gear, a wave generator, a cover, and a fan blade. The circular flexible external gear is disposed in the circular rigid internal gear, and the wave generator has at least one through hole and is disposed in the circular flexible external gear. The cover and the fan blade are respectively disposed at two opposite sides of the wave generator, and the cover is located in the circular flexible external gear. The cover and the wave generator form an air chamber together, and the through hole and an air flow opening are respectively in communication with the air chamber. The wave generator operates to drive the fan blade to operate. The fan blade rotates to generate an air flow, thus performing heat dissipation on the harmonic drive.

Abstract: A wave generator (4) of a wave gear device (1) is equipped with a rigid cam plate (5) and a wave bearing (7). The wave bearing (7) comprises an oval raceway surface (5b) formed on the oval outer peripheral surface (5a) of the rigid cam plate (5), a flexible bearing ring (8) equipped with a circular raceway surface (8a), and multiple balls (10) inserted in the race (9) formed between oval raceway surface (5b) and circular raceway surface (8a). A ball insertion hole (11) is formed at the outer perimeter edge of the rigid cam plate (5) at a region above the minor axis Lmin of the oval where there is substantially no load; from here, the balls (10) are inserted into the race (9), after which the hole is closed by a plug (12). It is easy to insert the balls (10) through the ball insertion hole (11), and the service life of the bearing is not reduced since the ball insertion hole (11) is formed.

Abstract: A gear arrangement is provided with a built-up for a shaft or pinion to rotate in unison therewith. The gear includes a gear rim and two flanges arranged axially on both sides and fixed them against the gear rim in a positive-locking connection. A hub, over which the respective other parts of the gear are pushed, is formed on at least one of the parts of the gear. The parts of the gear are held together without the use of rivets or screws by a clamped connection including a clamping ring, which is caused to mesh with a groove extending circumferentially on the circumference of the hub or shaft. The clamped connection presses the respective flange outer surface in a spring-mounted manner. Mutually corresponding elevations and depressions on the axial outer surfaces of the gear rim as well as on the axially inner surfaces of the flanges mesh with one another.

Abstract: A transmission device for a vehicle component adjuster, such as a seat adjuster, may include a drive screw, a drive member and a load transfer member. The drive member engages the drive screw and has a first end with an outer periphery and an end surface. The load transfer member has a first portion disposed at least partially around the periphery of the drive member and a second portion configured to be positioned between the end surface and a support structure supporting the seat adjuster relative to a track arrangement or system. The load transfer member is configured to transfer an axial load applied to the drive member to the support structure.

Abstract: A gear support mechanism for supporting two gears and an intermediate gear which meshes with the two gears to transfer rotation of one of the two gears to the other, includes a gear-shaft support member(s) which supports a gear shaft of the intermediate gear; and a spring member installed between the gear-shaft support member and the intermediate gear. The spring member includes a gear contacting portion which is in contact with the intermediate gear, and resilient support legs extend radially from the gear contacting portion and are in contact with the gear-shaft support member, the spring member biasing the intermediate gear in a direction of an axis of the gear shaft. Each of the two gears is positioned in an inter-leg space between adjacent resilient support legs as viewed in a direction along the axis of the gear shaft.

Abstract: A driving mechanism for driving a wheel of a toy car includes a motor, a first clutch, a second clutch, a guide shaft, a spring, and a limiting element. The first clutch driven by the motor has an engaging end surface defining a center hole thereon. The second clutch capable of latching with the wheel for driving the wheel has an engaging surface engaging with the engaging end surface. The second clutch defines a stepped hole substantially perpendicular to the engaging surface thereof, the stepped hole includes a first portion and a second portion. The guide shaft is disposed running through the stepped hole and has an end thereof fixed in the center hole. The spring sleeves the guide shaft and is compressed between the limiting element secured on the guide shaft and a stepped surface in the stepped hole.

Abstract: A torsional compensator having an inner hub, an outer sprocket, left and right grippers, and a resilient torsion sleeve. The torsion sleeve occupies a generally annular cavity between the inner hub and outer sprocket and each end of the sleeve is coupled to a gripper. One gripper is coupled to the inside of the outer sprocket and the other gripper is coupled to the outside of the inner hub and they are axially spaced apart. The inner hub supports the outer sprocket for coaxial rotation thereon.

Abstract: Provided is a strain wave gearing having a high stiffness and no limitation imposed on rotation, and a robotic arm including the strain wave gearing. A strain wave gearing includes an electric motor and a strain wave gearing reducer. The strain wave gearing reducer includes: an outer ring member including a first internal gear; a pair of second internal gears each having internal teeth formed along an inner periphery thereof, and the pair of second internal gears differing from the first internal gear in number of teeth; a flexible gear; and a cam member, which distorts the flexible gear in a radial direction to cause the flexible gear to engage with the first internal gear and the pair of second internal gears. The pair of second internal gears is fixed to a pair of fixing plates coupled to each other by a shaft penetrating the cam member.

Abstract: A torque transmission assembly includes two structural component parts for coupled engagement to one another so as to rotate together around an axis of rotation, a first of these structural component parts has an inner circumferential toothing and a second of these structural component parts has an outer circumferential toothing for a rotary coupling engagement with the inner circumferential toothing. The teeth in one toothing of an inner circumferential toothing and outer circumferential toothing are bounded by end faces in a first axial end area of the one toothing. The one toothing has at least one tooth with an end face which is extended forward axially relative to the end faces of the other teeth of the one toothing, and the end face of at least one tooth of the one toothing with the end face which is extended forward axially forms a circumferentially deflecting end face for the other toothing.

Abstract: An actuator for a state changeover element that is actuated in a manner interlocking with the tilting of a tilt member is provided. The actuator is equipped with a rotational power generating portion, an output shaft coaxially and integrally rotatably coupled to a tilt spindle of the tilt member to output a rotational power generated by the rotational power generating portion, a casing that covers the actuator and having an opening for exposing one axial end side of the output shaft to an outside. The actuator is further equipped with a rotational angle limiting unit provided between the output shaft and a wall portion of the casing radially facing the output shaft to physically limit a rotational angle of the output shaft. A range changeover device for an automatic transmission equipped with this actuator and a parking device equipped with this actuator are provided.

Abstract: A door drive for garage, garden, hall or factory doors, comprising a motor unit which comprises a drive motor and a motor output shaft, an output transmission, which on the input end can be connected with the motor output shaft and on the output end includes a transmission output shaft for driving a door moving element, in particular a door shaft, a release clutch for releasing the motor output shaft with respect to the door moving element as well as at least one damping element for damping drive shocks. The door drive is characterized in that the output transmission includes a transmission housing formed separate from the motor unit and together with the release clutch and the damping element forms a separate, modular drive attachment, which can be connected on the one hand to the motor unit and on the other hand to the door moving element.

Abstract: The invention relates to a backlash-compensating toothed moving part, for a precision gear assembly, particularly in clock-making, in which the backlash-compensating teeth each have a section extending symmetrically to both sides of the radius of said mobile passing the tip of said teeth with an elastic connection to said mobile to give said teeth a freedom of movement in the plane of the mobile, at least one tooth in two being a backlash-compensating tooth comprising stop means arranged to limit the freedom of movement as a function of the backlash in the gear assembly to be compensated for.

Abstract: An integrated supplemental motor system for e-bikes incorporates a motor stator carried by a fixed axle with a torroidal cavity surrounding the axle. A motor rotor for interaction with the stator is supported by a motor casing rotatable on a plurality of bearings carried by the fixed axle. A torque member is concentrically carried within the torroidal cavity and has a first attachment engaged to a gear cluster for force input and a second resilient attachment for engagement to the motor casing. The torque member is urged by the gear cluster from a first no force position resiliently through a range of motion to a second maximum force position. A first element connected to the torque member has a set of first signal generation interfaces and a second element connected to the motor case has an equal set of second signal generation interfaces. The first and second signal generation interfaces are spaced in relation to the range of motion of the torque member.

Abstract: A sprocket unit comprising: a damper mounted on the first shaft with a first face defining a recess and a second face defining chambers for receiving spring loaded weights; a sprocket mounted to the first shaft with a hub defining an aperture and a slot; a front end plate mounted on the shaft with a hub defining an aperture aligned with the aperture of the sprocket; and a spring received within the aperture of the sprocket, the aperture of the front end plate, and the recess of the damper. When the first shaft rotates and firing frequency of the engine coincides with a resonant frequency of the first shaft, the spring loaded weights slide in the chambers of the damper, dampening out the resonant frequency in the first shaft and when the sprocket rotates the spring compresses and extends, reducing torsional load of the first shaft on the second shaft.

Abstract: A harmonic drive according to the present invention comprises a plurality of internal gears; a band type of flexible gear provided with teeth engaged with each of the internal gears on its outer circumferential surface, the flexible gear having a pitch circumference length shorter than that of said internal gears; and a wave generating part disposed on an inner side of said flexible gear, the wave generating part generating a plurality of harmonic motions by deforming said flexible gear as the wave generating part rotates. Further, said flexible gear is formed integrally to engage with said plurality of internal gears so that the plurality of harmonic motions are overlapped, and one or more of said plurality of internal gears and said flexible gear are formed of profile shifted gears.

Abstract: First gear for use in a gear set including a second gear has a hub to which are attached a plurality of arms made of an elastic material. Each pair of adjacent arms defines a slot between them into which the arms may bend. The arms can deflect elastically in the plane as a cantilevered beam. Each arm has on the end thereof, a tooth for meshing with a tooth on the second gear to allow transfer of force between the first gear's tooth and the meshing second gear's tooth. A load distributor in contact with at least first and second arms distributes to the second arm at least a portion of force received by the first arm's tooth while the first arm's tooth meshes with a tooth on the second gear. In one embodiment, the load distributor comprises an insert within the slot between the first and second arms.