539results about "Freewheel clutches" patented technology

A hybrid system for use with utility vehicles includes an electric motor including an output shaft and a conductor configured to alternatively receive power from or send power to an electrical power source. The hybrid system includes an internal combustion engine, a first pulley connected to and rotated by the internal combustion engine, and a clutch mechanism. The clutch mechanism includes a ratchet connected to the output shaft of the electric motor to rotate at a first rotational speed, a pawl carrier driven by the internal combustion engine to rotate at a second rotational speed, and one or pawls coupled to and configured to rotate with the pawl carrier. The one or more pawls are configured to be disengaged from the ratchet when the first and second rotational speeds differ and engaged with the ratchet when the first and second rotational speeds are equal.

A hub is provided for a human-powered vehicle. The hub includes a hub axle, a first rotating body, a second rotating body, a first ratchet member, a second ratchet member and a slider. The first rotating body and the second rotating body are rotatably mounted on the hub axle. The first ratchet member rotates with the first rotating body. The second ratchet member rotates with the second rotating body. The slider rotates with the first rotating body and slide with respect to the second rotating body in a circumferential direction. The slider has a first contact surface in sliding contact with an axially facing surface of the second ratchet member. The slider has a second contact surface in sliding contact with a radially facing surface of the second ratchet member.

The present invention relates to an actuator 1 for oscillatingly driving a windscreen wiper with a brake medium 2 for frictionally holding a component 3 of the actuator 1, in particular when the wiper arm is in the parked position, wherein the brake medium is opened by a driving force of the actuator 1 and closed by a pushing force of the wiper arm.

A roller spring member for an overrunning clutch is provided. A first bridge connecting portion couples a bridge to a first spring central location of a first leaf spring. A second bridge connecting portion couples the bridge to a second spring central location of a second leaf. The roller spring member further includes at least one of, each of the first bridge connecting portion and the second bridge connecting portion including an undercut radius section, each of the first leaf spring and the second leaf spring being tapering from an associated one of the first spring central location of the first leaf spring and the second leaf spring central location of the second leaf spring to a first end and a second end, and each of the first leaf spring and the second leaf spring including a straight portion proximate the central locations.

A bicycle component for a bicycle freewheel unit, wherein the freewheel unit includes a rotary unit and a toothed disk device coupled with the rotary unit. The toothed disk device includes an end toothing with axial engagement components for engaging corresponding engagement components of another toothed disk device. The toothed disk device and the rotary unit are each configured as coupling components coupled to one another, and include a radial toothing each, for engaging with one another, and which are commonly rotatable. The rotary unit and the toothed disk device are movable in a peripheral direction relative to one another between a driving position and a rest position, so that prior to torque transmission starting, a coupling component is rotated in the driving direction about a clearance angle of at least 5°, until torque can be transmitted, when the two radial toothings have previously been in the rest position.

A fishing reel including a gear train and a spool is provided. The gear train is operably coupled with the spool such that the gear train is configured to transmit rotational power to the spool. When the fishing reel is in a first configuration, a crank is disengaged from the gear train to allow the gear train to receive rotational power from a motor. As a result, the motor rotates the spool without causing the crank to rotate. In contrast, when the fishing reel is in the second configuration, the crank is operably coupled with the gear train. As a result, the crank may provide rotational power to the gear train to rotate the spool. However, if the gear train begins to rotate relative to the crank, a key may move outwardly from a crank gear to cause the fishing reel to transition to the first configuration.

The utility model relates to a switchable one-way clutch system and a hybrid electric vehicle. The switchable one-way clutch system includes radially spaced first and second outer rings, and radially spaced first and second inner rings, the first inner ring radially located between the first outer ring and the second outer ring, the second outer ring radially located between the first inner ring and the second inner ring. The switchable one-way clutch comprises a first clutch assembly which is arranged between a first outer ring and a first inner ring in the radial direction, and the switchable one-way clutch can be switched between a connection state and a disconnection state so that the first inner ring and the first outer ring can be connected or disconnected. A second clutch assembly of the second one-way clutch is arranged between a second outer ring and a second inner ring in the radial direction, and the second outer ring transmits torque to the second inner ring through the second clutch assembly. Through the combination of the two one-way clutches, switching between the two-way torque transmission mode and the one-way clutch mode is achieved, the structure is simple, the size is small, cost is low, impact generated by switching is small, and the NVH performance is high.

An electric drive unit (50) is mechanically connected to the input element (62) of a reduction gear (60) for applying a drive force. An output element (40) is mechanically connected to an output element (62) of the reduction gear (60) via a freewheel (20) for outputting a torque. The freewheel (20) has at least one pivotable clamping element (21) with a clamping surface (22) whose curvature is adapted to the curvature of an inner circumferential surface (24) of an outer ring (26) of the freewheel (20). The clamping surface (22) restricts the pivoting of the clamping element (21) to a locked position in which the clamping surface (22) is aligned along the inner circumferential surface (24). The clamping element (21) is designed to transmit a locking torque when the clamping element (21) is pivoted into the locking position, and to slip when the output torque to be transmitted is greater than the locking torque.

[Problem] A design is provided that is capable of suppressing the rattling of an input element. [Solution to the problem] A leaf spring 6 has: two held sections 43, which are arranged on both sides of an input-side engagement section 14 in respect of a second direction perpendicular to a first direction, which is a direction of movement of a pressing surface 33, which moves away from or towards a pressed surface 7 and a central axis of an input element 3, and are held elastically between the input-side engagement section 14 and an input-side gripped section 34; and a base section 44, which connects the two held sections 43.

The disclosure relates to a bicycle transmission comprising an axle, such as a wheel axle or a countershaft in a crank transmission, configured to be non-rotatably fixed to a frame of the bicycle; at least one sun gear rotatably mounted about the axle; at least one clutch mechanism for selectively preventing rotation of the at least one sun gear in at least one direction of rotation about the axle; and a camshaft mounted inside the axle to actuate the at least one clutch mechanism.

The current document is directed to improved mechanical joints that each includes a compact, bypassable, single-spring or nested-spring wrap-spring clutch ("BSorN WS clutch") and that can be incorporated into many different types of devices, appliances, and systems, including prosthetics. One application of a BSorNWS-clutch mechanical joint is as a mechanical knee within a prosthetic leg. A BSorNWS-clutch mechanical-knee component used in a prosthetic leg further includes upper-leg and lower-leg attachments that freely rotate when the prosthetic leg is unweighted butthat are constrained, by weighting-induced activation of the BSorNWS-clutch. to rotate only in a lower-leg-extension direction. The BSorNWS- clutch mechanical-knee includes additional components that adjust the weighting force needed to bypass the BSorNWS clutch and to slightly relax the rotational constraint imposed by BSorNWS-clutch activation.

A clutch with an inner rotatable member and an outer rotatable member. A plurality of clutch members are arranged between the inner rotatable member and the outer rotatable member to permit relative rotation of the inner rotatable member with respect to the outer rotatable member in a first direction and restrict relative rotation of the inner rotatable member with respect to the outer rotatable member in a second direction. The clutch members include a wedge portion and an interlocking portion. The wedge portion and the interlocking portion engage with the inner rotatable member and the outer rotatable member to restrict the rotation in the second direction. The wedge portion engages before the interlocking portion.

1. An adjustable support for an electronic device, the adjustable support comprising: a platform (18) configured to support the electronic device; a post (14) extending between a first end and a second end; and a linkage assembly (26) movably supporting the platform on the post, the linkage assembly being slidably coupled to the post to adjust the height of the platform, the linkage assembly including a plurality of movable linkages configured to adjust the tilt of the platform to a plurality of different tilt angles.

The invention provides a friction actuating type friction clutch with an inertia cam, which is mainly used in the technical field of transmission, in particular to the technical field of friction clutches. The clutch at least comprises a pawl, a friction wheel, a return spring, a pawl seat, a friction cam, a release spring and an inertia cam. Under the action of rotation inertia, the separation spring is selectively contacted with the friction wheel, or the separation spring is selectively separated from the friction wheel, or the separation spring is selectively contacted with the friction cam, or the separation spring is selectively separated from the friction cam; and under the friction action of the separation spring or the friction wheel, the pawl and the friction wheel selectively realize separation and reunion, and the pawl and the friction wheel selectively realize contact separation. Compared with the prior art, the clutch can reduce abrasion of the pawls and has high transmission efficiency.

A mechanical stop system (1) of a power delivery system in an aircraft, the mechanical stop system (1) including an input shaft (2), a plurality of rotating members (6), wherein the input shaft (2) comprises an input engaging portion (4) and wherein each of the plurality of rotating members (6) is arranged to rotate about the input shaft (2). The plurality of rotating members (6) include a proximal rotating member (8) arranged proximal to the input engaging portion (4) and a distal rotating member (10) arranged distal from the input engaging portion (4). Each of the plurality of rotating members (6) includes an engaging portion (7). The mechanical stop system (1) includes a fixed member (14). The input shaft (2) is arranged to be prevented from rotating in a first direction when the engaging portion (7) of the distal rotating member (10) is engaged with the fixed member (14).

A method for power transmission method includes providing first and second shafts, a gear assembly having first and second gear ratios, and first and second coupling assemblies. The first coupling assembly enabling torque transfer from the first shaft to the second shaft, and the second coupling assembly enabling torque transfer from the first shaft to the second shaft. The speed of the first shaft varies, wherein the deployment of a locking element of the second coupling assembly is based on the speed of the first shaft.

This application provides a dual overrunning clutch decoupled adaptive stiffness pneumatic tire, including a wheel body structure, a main drive system, and a stiffness adjustment system. The wheel body structure includes a hub structure nested within the wheel body. The wheel body has at least one circumferentially extending annular channel, which includes circumferentially staggered pressure-bearing areas and non-pressure-bearing areas. The hub structure includes several hub units nested within the channel and evenly spaced circumferentially, each hub unit being able to slide independently along the channel. The main drive system includes a first bidirectional overrunning clutch for driving the hub structure and wheel body to rotate synchronously. The stiffness adjustment system includes a second bidirectional overrunning clutch for driving the hub structure to rotate relative to the wheel body. When there is a difference in the speeds of the two wheels, the second clutch engages; when the speeds are equal, it overruns. The differential rotation of the hub structure drives the hub units to slide, changing their contact state with the pressure-bearing areas, thereby achieving real-time adaptive stiffness adjustment during driving, pneumatic tire-free wear resistance, and low energy consumption for all road conditions.

The objective is to provide a roller for a cam clutch unit that can reduce contact with the spring, and a cam clutch unit using the same that can suppress the generation of drag torque. [Solution] The rollers 20, 30, and 40 are used in a cam clutch unit 10 which comprises at least a plurality of cams 11 arranged between an inner ring and an outer ring that are coaxially rotatable relative to each other, and an annular spring 12 that biases the cams 11. The rollers 20, 30, and 40 are arranged together with the cams 11 between the inner ring and the outer ring, and each roller 20, 30, and 40 consists of a pair of roller portions 21, 31, and 41 and pin portions 22, 32, and 42 provided between the roller portions 21, 31, and 41, and is characterized in that at least one of the roller portions 21, 31, and 41 and the pin portions 22, 32, and 42 are separate.

This invention discloses a CVT drive clutch with downhill braking function, relating to the field of clutch technology. It includes a drive shaft, with a drive wheel assembly and a transmission wheel assembly connected to its two ends respectively. A braking assembly is provided between the drive wheel assembly and the transmission wheel assembly. The braking assembly includes a one-way bearing sleeved on the drive shaft; a bearing housing is sleeved on the outside of the one-way bearing; the inner ring of the one-way bearing is fixed to the drive shaft, and the outer ring of the one-way bearing is fixed to the bearing housing; a flange sleeve for connecting a drive belt is slidably sleeved on the outside of the bearing housing; the outer ring of the flange sleeve near the drive wheel assembly has a protruding structure for blocking the drive belt; an annular guide slider is sleeved on the outside of the bearing housing near the drive wheel assembly. The advantages of this invention are: it can achieve braking by clamping both sides of the drive belt, with fast response speed, good braking effect, and high reliability.

The invention discloses a bicycle wheel hub architecture comprising a main axle (6) surrounded by a shaft sleeve (1) carrying an axle bearing (2) that supports rotation of a hub shell (7) together with a second hub bearing (14) which is positioned radially in a freehub body (15) enabling the hub shell (7) to rotate freely about the main axle (6); a brake‑side dropout spacer (3), a cassette‑side dropout spacer (17) and a spacer sleeve (16) for axial positioning; a cassette (18) secured by a cassette lockring (19); and a retaining ring (13) for axial retention; wherein the freehub body (15) couples inner (10) and outer (9) synchronization rings to a fixed toothed ring (8) which is mechanically fastened to the hub shell (7), and wherein a mechanical engagement is produced by axial motion of a set of outer (11) and inner (12) bellows along the shaft sleeve (1).

A bicycle hub assembly comprises a hub axle, a hub shell, and a sprocket support link. The sprocket support link includes a tubular section and a first tooth. The tubular section includes an outer peripheral surface and a mounting section, which is provided only radially inside the outer peripheral surface. The first tooth is designed to be attached to the mounting section of the tubular section. The first tooth comprises a first surface and a second surface. The first surface is designed to face a mounting section of a bicycle sprocket in one circumferential direction of the sprocket support link. The second surface is opposite the first surface in the circumferential direction. The second surface is designed to face the mounting section of the bicycle sprocket in the circumferential direction.

To provide a cam clutch capable of increasing a life by preventing the occurrence of biting of a cam, switching an operation mode by minute force, and achieving downsizing.SOLUTION: A cam clutch is equipped with an inner ring, an outer ring, a plurality of cams, and energizing means for energizing the plurality of cams so as to contact with the inner ring and the outer ring. The plurality of cams includes a first cam and a second cam having different engaging directions from each other. Sliding resistance generating means is provided, which, when switching an operation by an operation mode switching mechanism, if the first cam and the second cam are brought into a both floating state in which they are simultaneously separated from a raceway surface of the inner ring and / or a raceway surface of the outer ring, generates sliding resistance between a member capable of tilting the first cam or the second cam in an engaging direction and the inner ring and / or the outer ring.SELECTED DRAWING: Figure 14

The invention relates to a gearshift arrangement (6) for a bicycle, in particular a bicycle with an auxiliary motor. The gearshift arrangement (6) is specifically designed for a hub gear. The gearshift arrangement has a hollow main transmission shaft (12) on which a driver (26) is rotatably mounted. At least one planetary gear (29a) is provided, which has at least one gear component (27, 29) rotatably mounted on the main transmission shaft in the form of a planet carrier (27) or a sun gear (29). A clutch (30, 31) has a clutch element (30a, 31a) that is axially displaceable between an engaged and a disengaged switching state. In the engaged switching state, the gear component is rotationally fixed to the main transmission shaft and is freely rotatable relative to the transmission shaft in the disengaged switching state. An actuating element (13) is rotatably mounted in the main transmission shaft.A cam control (45a) connects the actuating element to the axially displaceable coupling element and converts a rotational movement of the actuating element into an axial displacement of the axially displaceable coupling element. The cam control has at least two switching fingers (22) spaced apart from each other in the direction of rotation of the actuating element. The coupling (30, 31) has an axially acting spring (41) that acts on the axially displaceable coupling element (30a, 31a) and moves the axially displaceable coupling element towards the axially stationary coupling element (30b, 31b) of the coupling.

A cam clutch unit includes a plurality of cams and rollers. The rollers each include an axially extending shaft portion and a pair of large-diameter portions continuous with respective both ends of the shaft portion. The space between the pair of large-diameter portions forms a groove for an annular spring to fit in. The shaft portion forming the bottom surface of the groove has an outer circumferential surface that allows the spring to contact the groove at a central position in an axial direction of the groove. The outer circumferential surface is a curved surface so that the shaft portion increases in outside diameter monotonically from the central position in the axial direction of the groove towards the large-diameter portions.

An apparatus for mechanically coupling a motor to a rotor includes an outer ring including an inner surface shaped to define multiple recesses, an inner ring disposed within the outer ring and shaped to define multiple compartments having respective outer openings, which face the outer ring, and respective inner openings opposite the outer openings, and multiple gripping elements disposed within the compartments, respectively. The inner ring is configured to receive the rotor while the compartments are aligned with the of recesses, by virtue of the gripping elements sitting at least partially within the recesses. The outer ring is configured to couple with a shaft coupled with the motor such that rotation of the shaft by the motor causes the compartments to become misaligned with the recesses, thereby causing the outer ring to push the gripping elements, through the outer openings, against the rotor, through the inner openings.

The utility model discloses a bidirectional non-return structure which comprises a sleeve, a shifting fork, an inner rotating disc and a torsional spring. The shifting fork, the inner turntable and the torsional spring are all inserted into the sleeve; the insertion arm of the shifting fork and the insertion arm of the inner rotating disc are oppositely inserted into the torsion spring, and the two bent ends of the torsion spring are both located on the inner ring side; the two insertion arms of the shifting fork are respectively supported on the inner sides of the two bent end parts; one insertion arm of the inner rotating disc is supported on the outer side of one bent end, and the other insertion arm is located on the inner sides of the two bent ends and located between the two insertion arms of the shifting fork. The bidirectional check valve has the advantages of being simple in structure and capable of supporting bidirectional instant check.

The utility model relates to a pulley block transmission structure which comprises a force input shaft, a one-way rotating mechanism, a driving gear, a driven gear, a driven gear shaft and a rope wheel. One end of the force input shaft is connected with a power input mechanism, the other end of the force input shaft is connected with a one-way rotating mechanism, the bottom end of the one-way rotating mechanism is connected with one end of a driving gear, and the other end of the driving gear is sleeved with a gear sleeve; a driven gear shaft is arranged on one side of the driving gear, a driven gear and a rope wheel are arranged on the driven gear shaft, and the driven gear is meshed with the driving gear. According to the pulley block transmission structure, the rope wound on the pulley block is wound on the rope wheel in a one-way mode, and the falling situation caused by reverse movement of the rope wheel is effectively avoided; the end of the driving gear is sleeved with the gear sleeve, the overall structural stability of the driving gear is improved through the arrangement of the gear sleeve, the service life of the driving gear is prolonged, and meanwhile the safety of the pulley block transmission structure is improved.

The purpose of the present invention is to provide a roller for a cam clutch unit capable of reducing contact with a spring, and a cam clutch unit capable of suppressing the generation of drag torque using the roller. The rollers (20, 30, 40) are used in a cam clutch unit (10) provided with at least a plurality of cams (11) disposed between an inner ring and an outer ring provided coaxially and relatively rotatable, and an annular spring (12) for applying a force to the cams (11), and are disposed together with the cams (11) between the inner ring and the outer ring. The rollers (20, 30, 40) comprise a pair of roller parts (21, 31, 41) and pin parts (22, 32, 42) provided across the roller parts (21, 31, 41), and at least one of the roller parts (21, 31, 41) is separated from the pin parts (22, 32, 42).

To provide a new torque limiter capable of preventing a lubricant flowing out from an external apparatus from entering the inside of an outside member as much as possible.SOLUTION: A circular recessed part 10 or an annular recessed groove side 210b continuously extending in the peripheral direction is formed in the center of axial both side end surfaces of an inside member 4, and cylindrical preventive walls 42 and 48 entering the recessed part 10 or the recessed groove side 210b are formed in a pair of support walls 26 and 46.SELECTED DRAWING: Figure 1