A variable valve timing device applied to an engine system may include a rotor supplied with oil and rotated in clockwise and counterclockwise directions, one-way clutches coupled to the rotor to limit an amount of rotation of the rotor, a sprocket having a rotor hole surrounding an external diameter portion of the rotor, a rotation shaft fitted into a shaft hole of the rotor for the supply of oil to oil grooves, and a shaft fixing member coupled to the rotation shaft to fix the rotor and the rotation shaft, wherein the one-way clutches restrict clockwise/counterclockwise rotation of the rotor by torque of a camshaft, achieving an improvement in fuel efficiency/emission material (EM) of an engine.

A clutch unit (100), which transmits an operational force input to an operating lever (21) to an output shaft member (30) via an input-side clutch (50) and an output-side clutch (60) and outputs the operational force to a vehicle seat (40), includes a rotation suppressing member (70) is provided which applies a rotational resistance force larger than a co-rotating force to between an input-side outer-ring member (52) and a housing (11) which is not rotated at a time of the returning operation of the operating lever (21), so as to suppress that the input-side outer-ring member (52) is co-rotated by an input-side inner-ring member (51) of the input-side clutch (50) at the time of the returning operation of the operating lever (21).

A power generation device includes a main shaft rotated by an external force, a speed-up gear, a high-speed shaft, a rolling bearing, a power generator, and a one-way clutch disposed between the output gear and the high-speed shaft. In a state where the main shaft is rotating in a positive direction, the one-way clutch integrally rotatably connects the output gear and the high-speed shaft to each other if a rotational speed of the output gear exceeds a rotational speed of the high-speed shaft, and breaks connection between the output gear and the high-speed shaft if the rotational speed of the output gear becomes lower than the rotational speed of the high-speed shaft.

The present invention relates to a transmission for a motor, and more particularly, to a transmission for a motor, which optimizes a transmission for outputting a rotational force only in one direction at different shifting ratios according to forward/reverse rotation directions of a rotational shaft of the motor while enabling a reverse input, accurately transmits the rotational force without slippage and has durability even upon use thereof for a long period of time. Accordingly, the transmission improves reliability and shifting accuracy and maximizes marketability and market competitiveness.

A rotation transmission device includes a one-way clutch which is provided between an output shaft of a speed increaser and an input shaft of a generator, which makes a connection between the output shaft and the input shaft to be rotatable integrally in a state in which a rotation speed of the output shaft is higher than that of the input shaft, and which cuts off the connection between the output shaft and the input shaft in a state in which the rotation speed of the output shaft is lower than that of the input shaft. The rotation transmission device further includes: a measurement section which measures a state of the one-way clutch which changes depending on a load exerted to the one-way clutch; and an acquisition section which acquires the load exerted to the one-way clutch on a basis of a measurement result of the measurement section.

A one-way roller clutch, in particular for an adjuster of a disc brake, includes an inner body having an outer lateral surface, an outer ring, which covers the outer lateral surface of the inner body by way of an inner lateral surface in such a way that a clamping gap is formed, and a roller cage. The roller cage is arranged in the clamping gap. Spring-loaded clamping rollers are held in a rollable manner and are supported on respective ramp surfaces. The roller cage is retained on the inner body for conjoint rotation.

A split type cage includes: a pair of annular portions including recess portions formed on an inner periphery side at intervals in a circumferential direction; and a pillar portion which includes pillar end portions on both end sides in an axial direction and fitted in the recess portions, and on which a reaction toward an other side in the circumferential direction acts. The recess portion includes a wedge-shaped surface forming a wedge-shaped space, which becomes narrower in a radial direction toward the other side in the circumferential direction, between the wedge-shaped surface and an outer peripheral surface of an inner ring. The pillar end portion has a wedge shape in which a radial dimension decreases toward the other side in the circumferential direction, and includes a radial outside surface contacting the wedge-shaped surface and a radial inside surface contacting the outer peripheral surface of the inner ring.

A split type cage includes: a pair of annular portions including recess portions formed on an inner periphery side at intervals in a circumferential direction; and a pillar portion which includes pillar end portions on both end sides in an axial direction and fitted in the recess portions, and on which a reaction toward an other side in the circumferential direction acts. The recess portion includes a wedge-shaped surface forming a wedge-shaped space, which becomes narrower in a radial direction toward the other side in the circumferential direction, between the wedge-shaped surface and an outer peripheral surface of an inner ring. The pillar end portion has a wedge shape in which a radial dimension decreases toward the other side in the circumferential direction, and includes a radial outside surface contacting the wedge-shaped surface and a radial inside surface contacting the outer peripheral surface of the inner ring.

A joint member for a wind power generation apparatus includes: a first rotor integrally rotating with an output shaft of a speed increaser; a second rotor integrally rotating with an input shaft of a generator; and a one-way clutch provided between the first rotor and the second rotor. A torsion promoting portion being readily twisted and elastically deformed is provided at a portion of the first rotor where power is transmitted from the output shaft to the one-way clutch.