Abstract: A multi-directional compliant shifting mechanism for a multi-speed power tool may couple a movable selector to a power transmission system of the tool, for selecting an operational speed of the multi-speed power tool. The complaint shifting mechanism may provide shifting compliance in a first direction in response to movement of the selector in a first direction, and may provide shifting compliance in a second direction in response to movement of the selector in a second direction. In one example, this multi-directional shifting compliance may be provided by interaction of the selector with a camming surface, in combination with a single compression spring. In another example, this multi-directional shifting compliance may be provided by first and second springs, selectively acting to provide compliance in the first and second directions.

Abstract: A rotating torque transmission buffered shaft is provided with a casing tube, a shaft tube and a lock mounting member. The casing tube is formed with a receiving space and the inner walls of both ends of the casing tube are formed with a first inner screw thread and a second inner screw thread respectively. The shaft tube is installed within the receiving space and the middle section of the shaft tube is formed with a screw thread portion corresponding to the first inner screw thread. The lock mounting member is engaged and locked on the second inner screw thread. The rotating torque transmission buffered shaft is applicable to ships and vehicles for public transportation. The buffered shaft can absorb and balance intense rotating torque generated instantly, and can reduce the torque difference generated during the operation due to the linkage between the engine and the transmission device.

Abstract: A flange forming an input for the device and including a damper stop tab extending radially outward; a plate including first and second curved slots; and a curved friction assembly including a first end disposed in the first curved slot, a second end disposed in the second curved slot, at least one curved engagement plate including an engagement tab extending radially inward, at least one curved friction plate rotationally fixed to the plate, and a resilient element urging the at least one curved engagement plate and the at least one curved friction plate into contact. The device includes at least one elastic element engaged with the flange.

Abstract: An eccentric-screw pump has an axially split stator having axially opposite intake and output ends and an elastomeric liner defining an axially throughgoing passage. Respective intake and output housings are releasably secured to the intake and output ends of the stator. An axially extending screw rotor in the passage has an end in the intake housing. A drive includes a rotatable universal joint having a pair of relatively swivelable parts in the intake housing. Respective generally complementary formations on the end of the rotor and on one of the universal-joint parts can fit axially together to rotationally couple the one universal-joint part with the rotor. A latch secures the formations axially together for angular force transmission between the one universal-joint part and the rotor.

Abstract: The present invention provides a compensator assembly for use in a motorcycle. The compensator assembly includes an input member, and an output member driven by the input member through a torque-buffering interface. The compensator assembly also includes one or more lubrication passageways formed therein extending between a distal end and one or more interfaces to provide lubricant thereto.

Abstract: A torque shock or vibrations caused by the rotary inertia of a hydrostatic continuously variable transmission is reduced to improve ride quality of a vehicle when excessive torque occurs in a torque transmission path between a crankshaft and a drive wheel. A motorcycle includes a hydrostatic continuously variable transmission rotatably driven by torque of a crankshaft of an internal combustion engine. A rear wheel is rotatably driven by torque from the transmission. A torque damper absorbs excessive torque occurring in a torque transmission path from the crankshaft to the rear wheel. The torque dampers include an input side torque damper disposed in an input side torque transmission path between the crank shaft and the transmission and an output side torque damper disposed in an output side torque transmission path between the transmission and the rear wheel.

Abstract: Disclosed is a compliant joint achieving passive compliance. The compliant joint includes a housing and a rotating member mutually rotatably provided; and a cam provided between the housing and the rotating member, and connected to the housing and the rotating member respectively. The cam is connected to the rotating member to rotate together with the rotation of the rotating member, or be independent of the rotating member so as to move in the axial direction of the rotating member separately from the rotating member. The cam is connected to the housing such that the cam can maintain the connection with the housing when external force below a designated value is applied to the rotating member, and release the connection with the housing in the case that external force more than the designated value is applied to the rotating member.

Abstract: A damper unit (1) composed of two parts (2, 3) which are connected to rotate with one another and between which an axially elastic element (7) is disposed. Such damper units are used particularly for axial damping and for compensating slight axial misalignments of shafts in drive trains. To improve such damper units, particularly with respect to their external diameters, the axially acting energy storage device is compressed by a rotational movement produced by threads upon axial loading of the two parts.

Abstract: A torque damper for a power unit includes a rotating shaft on which the torque damper is mounted to reduce the axial size and weight. A torque damper for absorbing excessive torque occurring in a torque transmission path between an output shaft of a running clutch and an intermediate shaft includes an input cam member adapted to receive torque of the output shaft and an output cam member. A driven gear adapted to apply torque of the output shaft to the input cam member is provided on the input cam member rotatably supported by the intermediate shaft. In the torque damper, a torque-absorbing portion for absorbing excessive torque includes an input cam portion of the input cam member and an output cam portion of the output cam member and is disposed between a pair of bearings. One bearing is disposed between the input cam portion and the driven gear.

Abstract: The invention relates to a device (10) for transmitting torques while damping vibrations, particularly in a steering spindle arrangement, said device comprising a spindle connection part (12) for coupling to an end segment of a steering spindle, a damping bushing arrangement (16) that can be coupled to the spindle connection part (12), and a fork part (18) that can be coupled to the bushing arrangement (16) for transmitting torque. In this device, provision is made for the bushing arrangement (16) to be disposed between the spindle connection part (12) and the fork part (18), the bushing arrangement (16) having a first damping layer (60) made of elastomeric material for damping bending loads, and said bushing arrangement (16) having a second damping layer (62) made of elastomeric material for damping torsional loads.

Abstract: A centrifugal advance mechanism has drive and driven members connected with one another to rotate about a common axis as they move toward and away from each other along the common axis. A resilient element biases the members toward each other. A ramp on one of the members has an inner end portion and an outer end portion. The inner end portion is closer to the common axis than the outer end portion, the ramp rising as it moves from the inner end portion toward the outer end portion. A ba1l contacts the ramp and the other member. The resilient element biases the ball down the ramp, the ball traveling radially outward and up the ramp as the members rotate at increasing angular velocity thereby causing the members to separate from each other against the bias of the resilient element and to rotate with respect to each other.

Abstract: A limited free-motion coupling device 10 coupling an impeller 14 to a shaft 16 of a rotor 12, the coupling device 10 comprising first and second parts 20, 22 which are axially engaged for relative angular displacement about a rotational axis A, and two spherical coupling members 24 for engaging the first and second parts 20, 22 to prevent the relative angular displacement. One of the first and second parts 20, 22 is provided on the shaft 16 of the rotor 12, and the other is provided on the impeller 14. The first part 20 comprises two spaced coupling member arms 30 which project radially. The second part 22 comprises a cylindrical wall 66 extending coaxially with the rotational axis A of the coupling device 10. Two spaced arcuate channels 50 are formed in the cylindrical wall 66. Each coupling member 24 is received in and projects radially from a respective arcuate channel 50, and is freely movable between end walls of the arcuate channel 50.

Abstract: A variable valve timing apparatus has a case, a rotor, and a magneto-rheological fluid. The magneto-rheological fluid gives variable braking force to the rotor. The rotor is connected with a phase adjusting mechanism. The phase adjusting mechanism adjusts a phase of an internal combustion engine according to braking force. A sealing device is disposed between the case and the rotor. In one embodiment, the sealing device has a magnet and a plurality of flux guide members. In other embodiment, a diaphragm which acts as a damper mechanism for absorbing an internal pressure change is disposed on a fluid chamber in which the magneto-rheological fluid is kept.

Abstract: A compensator assembly for transmitting torque from a crankshaft of an engine to a clutch in a motorcycle drive train. The compensator assembly includes a cam slider, a sprocket, and a spring pack biasing the cam slider into engagement with the sprocket. The spring pack includes multiple springs having different spring rates. The cam slider includes first and second dissimilar cam members. A retainer is coupled to the crankshaft and formed with an anti-rotation feature engageable to hold the retainer, the cam slider, and the crankshaft stationary during tightening of a retaining bolt. The sprocket includes a plurality of spokes and axial openings. At least a portion of the cam slider extends through one of the plurality of axial openings.

Abstract: An assembly is provided comprising an SCP camshaft (130) having an inner shaft (140) and an outer tube (124) and a hydraulically operated twin vane phaser (110) having two output members (114, 116) coupled respectively for rotation with the inner shaft (140) and the outer tube (124) of the SCP camshaft (130). Each of the output members (114, 116) of the twin phaser is axially clamped to a respective one of the inner shaft (140) and the outer tube (124)of the SCP camshaft (130). A support bearing (150) for the twin vane phaser (110), having passageways (142) for supplying pressure medium to working chambers of the twin vane phaser (110), is formed separately from the SCP camshaft (130).

Abstract: In a preferred embodiment, an apparatus (100), including: a diaphragm coupling member (110); the diaphragm coupling member (110) having a generally ball shaped central portion; the ball shaped central portion having a first surface (130) engaging a complementarily shaped portion of a cover plate (132); the ball shaped central portion having a second surface (134) engaging a complementarily shaped portion of a drive plate (136); and the cover plate (132) and the drive plate (136) being co-engaged (at 150) such as to remove any clearance between the ball shaped central portion and the complementarily shaped portion of the cover plate (132) and the complementarily shaped portion of the drive plate (136).

Abstract: To provide a fluid control valve capable of providing appropriate responsiveness of the valve member or capable of compensating for fluid shortage in the case of low fluid pressure, by positively controlling the oscillation condition of the valve member according to such conditions as the temperature or pressure of the fluid. The valve includes a valve body 4 for controlling supply of fluid according to a position of a valve member 41, an electromagnetic driving means 5 for displacing a position of the valve member 41 according to an amount of power supplied thereto, and a controlling means 6 for controlling the power supply amount to the electromagnetic driving means 5 by a duty ratio of a pulse-width modulated signal.

Abstract: The mechanical variable cam timing device has a camshaft connector, a sprocket, a sprocket ring and a connector ring, all of which have teeth with slanted side walls that mate to form a circumferential ring. The sprocket ring and the connector ring move axially so as to shift the spacing between the teeth and provide for a phase shift.

Abstract: A centering bush for connecting components includes a bush head having a construction generally in accordance with that of a blade pin. A combination, a system and a printing press having the centering bush, are also provided.

Abstract: The invention provides a non-stage transmission which shifts gear in response to a load without requiring any independent actuator for changing a change gear ratio, and can achieve a large change gear ratio on the basis of a small-sized and low-cost structure. The non-stage transmission is structured such that a rocker arm 4 is reciprocated via a connection rod 18, a means for changing a stroke of the reciprocating motion is provided, and an output shaft 2 is driven in one direction whichever of forward and backward directions of the reciprocating motion of the rocker arm 4. An input side turning body 13 is structured such as to drive an output side turning body 14 via an energizing spring 12. The stroke of the reciprocating motion is changed by rotating a crank shaft lever by a cam groove 13d in a clockwise direction in correspondence to an increase of a load so as to shorten a distance between points Q, S.

Abstract: A connecting rod for coupling to a mating socket or to a coupler that includes a shaft having a longitudinal axis, a first end, and a second end, at least one of the first and second ends of the shaft having a substantially convex end face that is preferably arcuate or hemispherical in shape; and a spline formed on at least one of the first and second ends of the shaft, the spline having at least two projections that extend from the shaft to be substantially parallel to the longitudinal axis of the shaft, the projections contoured to accommodate universal movement of the shaft relative to the socket. The spline projections may be contoured to taper into the convex or hemispherical end face of the shaft.

Abstract: A device for mounting a drive shaft driven by a drive motor is described, in which device a carriage is driven via the drive shaft. The drive motor is embodied as a stepper motor (1), and the drive shaft (6) is joined to the carriage (8; 9) via an elastomeric damper (3).

Abstract: A drive shaft assembly to interconnect a driving component and a driven component has a first shaft and a second shaft operably engaged with the first shaft to enable torque transmission and relative axial sliding motion. A joint component operably interconnects one of the first and second shafts to one of the driving and/or driven components. The joint component is rotatable through a specified range of rotation, or “free-motion”. The joint component is axially fixed relative to one of the second shaft, driving component and/or the driven component.

Abstract: In a valve timing control device, a control means is configured to carry out feeding one of retarding and advancing chambers with a hydraulic pressure upon starting of the engine; actuating one of first and second disengaging mechanisms to cancel the engagement of one of first and second projectable members with the corresponding one of first and second engaging portions; feeding the other of the retarding and advancing chambers with a hydraulic pressure to turn a vane member in a housing within a range determined by each of the first and second engaging portions; and actuating, while the vane member is under the rotational movement within the range, the other of the first and second disengaging mechanisms to cancel the engagement of the other of the first and second projectable members with the corresponding one of the first and second engaging portions.

Abstract: A region including an engaging hole is given surface treatment such as partial quench hardening by induction hardening for improving surface hardness of the region. The partial quench hardening by induction hardening provides the region with satisfactory mechanical strength or surface hardness enough for resisting deformation of the engaging hole and wear-out of an edge of opening of the engaging hole caused by putting in and out of the lock pin.

Abstract: An apparatus for damping rotational vibrations in a power train comprises a free-wheel clutch between a driving element and a driven element. At the outer ring and at the inner ring of the free-wheel clutch there are formed clamping ramps cooperating with clamping balls lying therebetween. The clamping ramps are provided at the axial front sides of the rings of the free-wheel. One of the rings of the free-wheel clutch is arranged axially undisplaceable and the other ring is arranged axially displaceable. Between the axially displaceable ring and an axial buttress there is provided a spring element acting in axial direction. Thereby the transmission of rotational vibrations onto the driving element can be prevented due to an axial displacement of the constructional parts arranged therebetween up to their clamping, particularly with an increasing number of revolutions of the driving element.

Abstract: A VVA apparatus includes drive-input and intake-side transmission sprockets provided to an intake-side phase alteration device, an exhaust-side transmission sprocket provided to the exhaust-side phase alteration device, a reduced-diameter portion provided to a housing of the exhaust-side phase alteration device between a housing main body and the exhaust-side transmission sprocket, and a torsion coil spring arranged between the housing and vane rotor of the exhaust-side phase alteration device to bias the two in the advance direction. The torsion coil spring is disposed on the outer periphery of the reduced-diameter portion to have a reduced diameter when the phase is changed from the phase at engine start.

Abstract: Due to the fact that a regulator engages with an engagement aperture when hydraulic pressure is low due to unexpected decreases in engine rotation frequency during relative turning of a valve timing control device, the valve timing control device re-enters a regulated state. Control and running of regulation or release of relative rotation position of the valve timing control device by a regulator are performed by an external device distinct from the valve timing control device.

Abstract: The invention concerns a rotary piston adjuster for adjusting the angular position of the camshaft of an internal combustion engine, said adjuster comprising an outer rotor having at least one hydraulic chamber, and an inner rotor comprising at least one pivoting vane that can pivot hydraulically in the hydraulic chamber between a retard stop position and an advance stop position. A locking device suitable for detachably connecting the outer and inner rotors to each other and at least one compression spring acting in opposition to the frictional torque of the camshaft are arranged between the two rotors. A liberal design of the compression spring and a low-wear operation with this spring are enabled by the fact that the compression spring (27, 27′) is arranged in an attachment (4) that is connected to the rotary piston adjuster, and the components of the attachment have a wear-resistant configuration and support the compression spring (27, 27′) at least pointwise over its entire length.

Abstract: A vane-type cam phaser wherein a locking pin assembly is disposed between a rotor and a stator of the phaser to selectively couple the rotor and stator together under certain operating conditions, for example, during engine start-up. The central axis of the locking pin assembly is disposed in the rotor parallel to the rotational axis of the phaser. The pin is spring loaded in a default position and is guided through its axial movement by two cylindrical guide surfaces—an inner guide surface and an outer guide surface. The lengths of these guide surfaces are optimized to minimize binding and sluggish operation of the pin caused by lateral forces exerted on the pin by the stator when in operation. The outer guide surface to inner guide surface ratio (L/I) is preferably greater than 2.

Abstract: A camshaft rearranging device for an internal combustion engine including a crankshaft and a camshaft having a longitudinal axis. The camshaft rearranging device includes first or internal part aligned with the longitudinal axis of the camshaft and jointed to the camshaft for rotating the camshaft; a second or external part aligned with the longitudinal axis of the camshaft and joined to the crankshaft for being rotated by the crankshaft; and a third or intermediate part aligned with the longitudinal axis of the camshaft and joining the first and second parts to one another for rotating the first part when the second part is rotated and for rotating the first part relative to the second part.

Abstract: The device for adjusting the phase position of a shaft, especially a camshaft that can be rotated by a drive shaft, more particularly a crankshaft, by a transmission device with at least one transmission wheel, is configured as a rotary piston machine according to the orbit principle. The inventive device adjusts the rotary position of the transmission wheel in relation to the shaft. The rotary pistol machine includes a stator with inner teeth, an annular rotary piston with outer teeth that engage with the inner teeth of the stator, a driven part that can be rotated by the rotary piston and a valve that can be rotated by the rotary piston and a valve device. In order to control the movement of the rotary piston, the valve device enables rotating partial areas of the working area between the stator and the rotary piston to be joined to a fluid supply device at high or low pressure. The fluid supply device includes a control mechanism, a phase position detector and at least one control valve.

Abstract: The safety coupling comprises a housing (12) made up of a housing capsule (13) and a screwed-on housing cover (14). The torque is transmitted from the input shaft (10) via coupling disks (17, 18) to the output shaft (19). The first coupling disk (17) comprises rollers (23) rolling on a contoured coupling track (25) of the second coupling disk. The coupling track (25) is configured such that the rollers (23) are in exact line contact with the coupling track (25) over their length so that each roller (23) provides full support. Further, a locking device (33) is provided by means of which the turning position, to which the housing cover (14) has been adjusted for determinating the trip moment, can be locked.

Abstract: An apparatus (1) for changing the opening and closing times of gas exchange valves of an internal combustion engine has intercommunicating slide and freewheel means (15, 20). By means of these elements (15, 20), immediately upon starting the internal combustion engine, and adjusting piston (7) of the apparatus (1) is moved into its desired starting position and/or held there long enough for the apparatus (1) to be filled sufficiently with hydraulic fluid again. During the hydraulic-fluid-free state, the adjusting piston (7) is at the same time largely prevented from making any undesired oscillations.

Abstract: A device for varying the opening and closing times of gas exchange valves of an internal combustion engine, comprising a drive unit (2) which is in driving relationship with a crankshaft through a traction element and a driven unit (14) connected to an intake or exhaust camshaft, there being arranged within the device (1), a coupling element (18) by which a rotationally fixed, force-transmitting connection can be established between the drive unit (2) and the driven unit (14) when the pressure of the hydraulic medium falls below a level required for the displacement of the adjusting piston (9), the coupling element (18) being configured as a locking piston (19) which can be displaced on the one hand by hydraulic pressure and on the other hand by an auxiliary energy and comprises on an end face (26) a number of concentrically arranged extensions (27) which are associated to complementary recesses (35) of a locking ring (34) in the housing (6) to avoid noise generation on starting of the internal combustion eng

Abstract: A stand mixer comprising a drive shaft, a transmission shaft, and a coupling. The drive shaft is rotatably held in a first housing. The transmission shaft is held in a second housing. The second housing is pivotally mounted to the first housing so that the first housing may be pivoted relative to the second housing. The coupling connects the drive shaft to the transmission shaft when the first housing is in an operating position. The coupling includes a self aligning coupling. The self aligning coupling comprises a first member, a second member and a spring. The first member is inserted into and intermeshed with the second member to transfer power between the drive shaft and the transmission shaft. When the first housing is pivoted to the operating position the spring biases the first member against the second member to intermesh the first member with the second member.

Abstract: A control member of a torque transmitting apparatus is composed of pins, a retainer, a first and a second arc-shaped gears which form a single ring gear together, a piston, first springs and second springs. The first and second arc-shaped gears are biased respectively by the first and second springs in opposite directions so that the splines of the first and the second gears are deviated from each other while they are in mesh with corresponding splines of a sprocket sleeve and a cam sleeve. As a result, rattling noise due to backlash of the splines is suppressed even when torque change is transmitted to the sprocket sleeve.

Abstract: A tensioning device for imparting torsional bias to a shaft. The tensioning device includes a coupling member of resilient material having a first end and a second end. The first end of the coupling member is connected to the shaft for rotation therewith. A driven member is connected to the second end of the coupling member such that the driven member is relatively rotatable with respect to the shaft. A drive member is associated with the driven member for selectively rotating the driven member to any of a number of infinitely variable positions. The tensioning device is effective to rotate the shaft to a desired position and to store torsional force in the coupling member when the second end of the coupling member is rotated with respect to the first end of the coupling member. The tensioning device includes a torsion indicating member for indicating the amount of torsional force being applied to the shaft by the coupling member.

Abstract: First and second rotary wipers which are disposed proximate with respect to each other so that a lag angle formed at the initiation of operation is held during operation thereof. The lag angle generated at the initial operation time is cancelled when the operation is stopped.

Abstract: The periodic axial movement of the rotary piston (6) is performed by a cam mechanism which has a cam surface (8) rotating around the piston axis and a cam follower (9) that is in functional connection with the cam holder. The relative position of the cam holder determines the piston stroke in the course of one revolution. In this arrangement, the drive shaft (5) can extend coaxially with the piston (6). In a particularly advantageous manner, the follower is pressed against the cam holder under spring pre-tension.

Abstract: The articulation mechanisms is made particularly of irreversible satellite mechanisms connected to one another by a connection bar. The connection bar has, on one of its portion, a member with toothings subjected to action of a spring which, when the connection bar is in position between two cams of the articulation mechanisms, causes a rotation of these cams and of the satellites related thereto for taking up the manufacturing and mounting clearances.

Abstract: A gear coupling adapted to be capable of absorbing torsional shock loads between a power driven shaft 1 and a power drive shaft 2 comprises a drive member 3 and driven member 4 which extend from two sides into, and engage with, hollow intermediate member 5 so that the three members rotate in unison. The driven member 3 and preferably also the drive member 4 engage the intermediate member 5 by helical gear teeth 3B, 5A, 4B, 5B and a resilient member 6 such as a bank of disc springs is present between the drive member and the intermediate member. The coupling is arranged do that under the influence of a torsional shock load, the resultant axial separating force urges the intermediate member against the bias of the springs, to thereby reduce any damaging effects of the shock load.

Abstract: A device for mounting an aircraft engine and a propeller on a longitudinal member or fuselage of a lightweight aircraft. A sleeve is disposed about the longitudinal member and securing devices which prevent longitudinal movement of the sleeve relative to the longitudinal member are positioned at either end of the sleeve. Vibration dampening rings are disposed between the securing devices and cups which can be threaded along the sleeve placing the rings in the desired compression. The engine and the propeller are mounted on the sleeve. A driving sleeve is rotatably mounted on the sleeve and is drivingly attached at one end to the output of the engine and is mounted at the other end to the propeller. The propeller is rotatable about the longitudinal axis of the longitudinal member and the wing structure and tail structure can be mounted on the longitudinal member as well with the propeller positioned between them. The mounting device can also be used for biplanes.