Abstract: A differential apparatus is disclosed for controlling differential between left- and right-hand axles of a vehicle. A differential mechanism of planetary gear type is received within a differential case. The differential case is provided with a ring gear of the differential mechanism. A first hub is provided with a sun gear of the differential mechanism, and is fixed to one of the axles. A second hub is so provided as to be capable of being rotatable with respect to the first hub, and is fixed to the other axle. The carrier is movable axially relative to the second hub of the differential mechanism and is integrally rotatable together with the second hub of the differential mechanism. A first friction clutch for limiting differential between the carrier and the first hub is engaged by a cam mechanism controlled by a second friction clutch.

Abstract: A power transmitting system for a vehicle includes a rotatable input shaft for introducing driving power into the system, a rotatable first output shaft for transmitting the driving power from the system, and a rotatable second output shaft for also transmitting the driving power from the system. A transmitting member is rotatably mounted on the first output shaft and for rotating the second output shaft, a clutch mechanism is disposed adjacent to the transmitting member and mounted on the first output shaft for engaging the transmitting member with the first output shaft. An actuator is provided for actuating the clutch mechanism. A compact power transmitting system can be obtained.

Abstract: A hub clutch is operable as an automatic hub clutch and as a manual hub clutch, and includes a hollow housing secured to a wheel hub, the inner circumference of which is provided with a spline, and on the outside end surface of which an opening is defined; a manually operable knob rotatably mounted in the opening of the housing and provided with a boss section having an inclined cam surface; a drive gear fixed to a drive shaft at the extreme end thereof, and provided with a spline and a gear section; a ring clutch supported in an axially transferable manual on the spline and which is engaged with the gear section on the circumference of the drive gear when displaced outwardly in the axial direction; a retainer rotating integrally with the housing and engageable with the cam surface of the knob; a return spring extending between either the retainer and the drive gear or the retainer and the housing for urging the retainer and the ring clutch inwardly in the axial direction; a shift spring extending between the

Abstract: A hub clutch used for a four-wheel driving free-wheel device in which, when a knob for manual operation and mounted on a casing is set to an automatic position, a pawl portion of a retainer becomes disengaged with a cam surface defined by a boss portion of the knob so that the device operates in the automatic condition, while when the knob is rotated in a manual lock direction, the pawl portion is engaged by the cam surface of the knob and is cammed to a lock position. When the pawl portion is in the lock position, the device assumes a manually locked state so that a drive gear and a clutch ring are maintained in an engaged condition with each other and stationary system members are separated from rotating system members. Accordingly, no contact force is applied to stationary system members when in the manually locked state.

Abstract: A hub clutch in which when an axle shaft commences to be driven, protruding cam portions of a first cam which is axially movably splined to the outside circumference of a driving gear formed integrally with the axle shaft is displaced from the inside of respective grooved cam portions of a second cam and a cam ring to the outside along an axial direction. Thereafter, the first cam is further displaced to the outside in the axial direction along a second cam portion of the cam ring, and a clutch ring is displaced in the direction of clutched engagement through a shift spring, at which a casing is engaged integrally with the driving gear.

Abstract: A limited slip differential gear mechanism includes a pinion shaft rotating integrally with a differential gear casing, pinion gears attached rotatably to the pinion shaft, side gears engaged with the pinion gears and splined to axles, and a plurality of first and second clutch plates alternately disposed between the side gears and the differential gear casing. A lug portion provided on the inner surface of each first clutch plate engages with the outer surface of the side gear, while a lug portion provided on the outer surface of each second clutch plate engages with the inner surface of the differential gear casing. Concave portions or projections are formed between the first and second plates in contact with each other to define gaps for retaining lubricating oil.

Abstract: An automatic hub clutch used for connection and disconnection of a drive axle with a wheel of a four-wheel drive vehicle, has a simple mechanism and a short axial length. The hub clutch includes a first spring adapted to bias a slide gear toward disengagement, and a second spring disposed radially inwardly of the slide gear and adapted to bias the slide gear toward engagement through a cam.

Abstract: An automatic hub clutch used for connection and disconnection of a drive axle with a wheel of a four-wheel drive vehicle includes a simple mechanism having a short axial length. The hub clutch includes a first spring adapted to bias a slide gear toward disengagement, and a second spring disposed between and coaxially with the first spring and the slide gear, and adapted to bias the slide gear toward engagement through a cam.

Abstract: A bi-directional overrunning clutch comprises a drive shaft for transmitting a rotational driving force, a drive clutch member which is rotated with the drive shaft, a driven clutch member in engagement with the drive clutch to receive rotational motion thereof and movable axially to transmit the rotational motion to a hub, and a brake member to impart a desired braking force to rotational movement of the driven clutch member. In a two wheel running mode, the driven clutch member is disengaged from the hub so that the driving force, which is received by a non-driven wheel from the road surface, is limited to the wheel only.

Abstract: A hub clutch for wheels of a four-wheel drive vehicle need not be operated by the driver from the exterior of the vehicle. The hub clutch comprises a sleeve drive clutch member fixed to a drive shaft, a slide clutch member engaged to the drive clutch member through splines formed thereon and movable in the axial direction, and a driven clutch member adapted to be connected to or disconnected from the slide clutch member by axial movement thereof. A retainer is engaged to a stationary system, and a cam mechanism is provided for moving the slide clutch member in the axial direction, thereby carrying out a clutch connection when relative rotation is present between the retainer and the slide clutch member, and for releasing the clutch connection when the relative rotation becomes absent and a drive is provided from the driven clutch member side.

Abstract: A hub clutch for wheels of a four-wheel drive vehicle need not be operated by the driver from the exterior of the vehicle. The hub clutch comprises a sleeve drive clutch member fixed to a drive shaft, a slide clutch member engaged to the drive clutch member through splines formed thereon and movable in the axial direction and a driven clutch member adapted to be connected to or disconnected from the slide clutch member by axial movement thereof. A retainer is engaged to a stationary system. Resilient means biases the slide clutch member in an axial direction of the drive shaft. A cam mechanism moves the slide clutch in the axial direction, thereby carrying out a clutch connection when relative rotation is present between the retainer and the slide clutch member, and releasing the clutch connection when the relative rotation becomes absent and a drive is provided from the driven clutch member side.

Abstract: A hub clutch comprises a drive clutch adapted to be connected to a power shaft, an axially movable driven clutch to be coupled with the drive clutch and having semi-circular grooves for connection to a wheel hub, a case secured to the wheel hub by means of a plurality of bolts, coupling means providing a preload on the driven clutch, and actuator means for effecting movement of the driven clutch toward the drive clutch by the operation of the coupling means wherein the torque of the driven clutch is conveyed to the wheel hub by the engagement between the semi-circular grooves and the bolts.