Aisin Seiki Kabushiki Kaisha

Toyota Jidosha Kabushiki Kaisha

Tooru Kagata

Hideaki Wakabayashi

Masayoshi Shiba

Motoi Fujikawa

Hiromi Goto

Hiroyuki Amano

Masumi Kazaoka

Takayoshi Onodera

Hiroji Yamaguchi

Kikuo Kato

A control apparatus of a remote type free wheel hub clutch includes an inner sleeve integrally rotatable with a wheel axle, a clutch ring integrally rotatable with the free wheel hub clutch, an actuating arrangement for changing the two-wheel and four-wheel driving operations by engaging or disengaging the clutch ring with the inner sleeve in response to a transfer shift position. The transfer shift position actuates a discriminating circuit for changing over from two-wheel driving operation to four-wheel driving operation or vice verse.

Control apparatus of a remote type free wheel

An electrically actuated free wheel hub apparatus includes an axle tube, a wheel hub arranged about the axle tube and operated in response to the position of a drive transfer mechanism. An electric motor is disposed in a body fixed to the wheel hub and an axle shaft is interior to the axle tube. A control device control transmittal of power between the axle shaft and the wheel hub by a clutch mechanism. A syncromesh device is provided in the drive transfer mechanism so that each rotation of a front wheel side and a rear wheel side can be synchronized and a delay device transmit current to the motor after the completion of synchronizing.

Electrically actuated free wheel hub apparatus

A free wheel hub control system for a free wheel hub mechanism is positioned between a drive shaft and an axle hub supported by a spindle. A flexible printed circuit is disposed between an inner face of the spindle and an outer face of the drive shaft to transmit a control signal to an electric element of the free wheel hub mechanism. A cylindrical collar having contact portions is tightly fitted to the inner face of the spindle to hold the printed circuit in position.

Free wheel hub control system

A control device of a remote free wheel hub mechanism includes a free wheel hub mechanism, an actuator and a control circuit. The control circuit further includes a two-wheel-drive circuit, a four-wheel-drive circuit, a transfer shift position detecting sensor, and an engine rotation drive detecting sensor. One of the two-wheel-drive circuit and the four-wheel-drive circuit in the transfer shift position detecting sensor moves to a closed condition independently of the shift position when the engine is stopped, and the transfer shift position detecting sensor correspondingly produces a signal of one of the two-wheel-drive and four-wheel-drive conditions, respectively. The engine rotation drive detecting sensor detects a rotational condition of an engine and produces a signal which closes one of the two-wheel-drive and the four-wheel-drive circuits when the engine is stopped.

Control device of a remote free wheel hub mechanism

A free wheel hub clutch device includes a cylindrical body, an inner sleeve, a clutch member, a handle, a cam follower, a first tension spring, a second tension spring, a motor and a control. The control has an electrical charging apparatus and controls the motor which is attached to the free wheel hub clutch device. A sealing member is interposed between a wheel hub and an axle tube. With this construction, it is feasible to change from a two-wheel driving system to a four-wheel driving system and vice versa by manipulating a switch at the driver seat and further to prevent an outflow of grease from a bearing.

Free wheel hub clutch device

A wheel hub clutch assembly which includes a body attached to a wheel hub, an inner sleeve contained within the body and fixed to a driveable axle, a clutch member splined to the sleeve to be maintained in its disengaged position during operation for two-wheel drive and to be engaged with the body in clutching operation to couple the wheel hub to the axle for four-wheel drive, a cam ring formed at one side thereof with a cam face and rotatable on the sleeve, a cam follower splined to the sleeve and oepratively connected with the clutch member, the cam follower being loaded toward the cam ring to cooperate with the cam face so as to move the clutch member to its engaged position in response to rotation of the sleeve, a brake assembly for applying the brake to the cam ring by engagement therewith in response to rotation of the cam follower, and a slide ring rotatably coupled over the cam ring and associated with the cam follower and brake assembly for releasing the brake by engagement with the brake assembly when rotated by engagement with the cam follower. The cam face of the cam ring reliably disengages the cam ring from the brake assembly by engagement with the cam follower in clutching operation.

Wheel hub clutch assembly

A clutch assembly comprising a cylindrical body having first clutch teeth and fastened to a wheel hub. A sleeve member is fixed to an outer end of a drive axle and is located within the cylindrical body. A clutch member is formed with second clutch teeth and is axially slidably mounted on the sleeve member for rotation therewith. A cam ring operatively coupled with an outer end of a stationary axle tube for the drive axle is rotatable on the sleeve member. A cam follower ring is axially slidably mounted on the sleeve member for rotation therewith. The cam follower ring is cooperable with the cam ring to be displaced toward the clutch member in response to rotation of the drive axle. A connecting member is engaged with the cam follower ring and the clutch member to permit relatively axial movement between the cam follower ring and the clutch member. The cam ring has at least two stages of cam rise face cooperable with the cam follower ring.

A wheel hub clutch assembly comprises a cylindrical body formed therein with a first set of clutch teeth and fastened to a wheel hub, a sleeve member fixed to the outer end of a drive axle and located within the body, a clutch member formed with a second set of clutch teeth and axially slidably mounted on the sleeve member for rotation therewith, a cam ring operatively coupled with the outer end of a stationary axle tube for the drive axle and rotatable on the sleeve member, a cam follower ring axially slidably mounted on the sleeve member for rotation therewith and cooperable with the cam ring to be displaced toward the clutch member in response to rotation of the drive axle, and a connecting member engaged with the cam follower ring and the clutch member to permit relatively inward movement between the cam follower ring and clutch member. The improvement comprises a first spring arranged between the cam follower ring and the clutch member for loading the cam follower ring toward the cam ring and cooperable with the connecting member for loading the clutch member for movement away from engagement with the first clutch teeth, and a second spring arranged in parallel with the first spring between the cam follower ring and the clutch member for loading the clutch member for movement toward engagement with the first clutch teeth.

A freewheel hub assembly has a wheel hub rotatably supported by a bearing on a steering knucle and a freewheel mechanism is provided for connecting the wheel hub with a driving axle in such a manner that a rotating torque can be transmitted from the axle to the wheel hub but the wheel hub is freely rotatable when the axle is not rotating. The freewheel mechanism includes a roller cage carrying a plurality of rollers. A retarder shoe is attached to one axial end of the cage. The one end of the cage is formed with a plurality of circumferentially spaced axial cutouts to provide a plurality of axial projections and the retarder shoe is formed with cutouts complementary to the axial projections of the cage so that the retarder shoe can be axially slidably fitted to the cage.

Freewheel hub assembly

A free wheel hub mechanism made up of a body secured to a wheel, an inner race secured to an axle shaft and rotatable therewith, means for engaging the inner race with the body only upon rotation of the shaft and for otherwise permitting free rotation of the body. A shoe receiving member is secured to a spindle sleeve of the axle shaft and has a receiving surface which crosses the axle shaft at substantially a right angle. A shoe means maintains the engaging means in its engaged condition, the shoe means having a sliding surface which crosses the axle shaft at a substantially right angle, and a spring biases the sliding surface of the shoe means against the receiving surface of the shoe receiving member.

Free wheel hub mechanism

A free wheel hub apparatus for vehicles having a wheel hub and an axle shaft includes a body integrally rotated with the wheel hub, an inner member disposed within the body and integrally rotated with the axle shaft, a bearing member interposed between the inner member and the body, a plurality of rollers interposed between the inner member and the body, a cage for supporting the rollers, and frictional means for engaging or disengaging the cage with or from a knuckle or the body according to the axial movement of the cage by a handle.

Free wheel hub apparatus for vehicles

A free wheel hub mechanism is made up of a body secured to a wheel and an inner race rotatable with an axle shaft and having a plurality of cam surfaces at its outer periphery, a plurality of rollers held by a cage arranged between the body and the inner race, the rollers being urged ouwards by the cam surfaces so as to be squeezed against the body when the inner race is rotated with the shaft. The squeezing of the rollers causes them to rotate with the inner race thereby to rotate the wheel. Also provided are means for restraining the rotation of the cage, including a plurality of shoes between which a plurality of projections provided on an innermost portion of the cage are arranged, a shoe receiving member secured to a non-rotatable spindle sleeve which houses the shaft and which has a receiving surface on which the shoes may slide, and an annular spring means urging the shoes against the receiving surface. In assembly, the shoes and shoe receiving member are assembled with the spring means, the shoe receiving member is secured to the spindle sleeve, and thereafter the projections of the cage, which is assembled between the body and the inner race, are positioned between the plurality of shoes.

A wheel hub clutching mechanism includes an internally splined body, and a clutch ring which is adapted to be meshed with a shaft driven pinion and is resiliently connected by means of a connecting spring to a follower which, in turn, is controlled by means of a rotatable cam. The follower and the clutch ring are biased toward the locked positions thereof by means of a compression spring when the cam is rotated to its locked position by means of a manually operated handle, and the clutch ring is retracted to the free position thereof together with the follower when the cam is rotated to its free position by means of the handle. A pinion supporting member is also interposed between the shaft driven pinion and the body, the splines of the body being formed so as to be substantially parallel to the shaft axis.

Wheel hub clutching mechanism

A free wheel hub device made up of a main body secured to a wheel; an inner race secured to a wheel axle and rotatably supporting the main body at its outer periphery; a toothed wheel axially mounted on the inner race and having a cam face and outer teeth engageable with inner teeth of the main body; a spring located between the inner race and the toothed wheel; a support member secured to the wheel axle tube and connected to the axle; and a shoe located between the toothed wheel and the support member, and having a cam face engageable with that of the toothed wheel. The shoe is rotatable on a guide surface of the support member so that, upon engagement of the cam faces, the outer teeth of the toothed wheel engage with the inner teeth of the main body, against the force of the spring, to slidably rotate the shoe upon the guide surface of the support member.

Free wheel hub

A differential gear mechanism for vehicles includes an axle shaft, a case rotated by the driving force from an engine, a pinion shaft perpendicularly intersecting the rotational axis of the case and fixed thereto, at least one pair of pinion gears rotatably supported upon the pinion shaft and supported by the case, a pair of side gears disposed within the case and enmeshed with the pair of pinion gears at both sides thereof for transmitting the driving force to the axle shaft, and a pair of pressure plates disposed exteriorly of the pair of side gears and slidably engaged with an inner peripheral face of the case at an outer peripheral face thereof. The pressure plates also support the pair of side gears and have a cam portion which is formed by end portions which extended inwardly of the case from the pair of pressure plates and from the outsides of the pair of side gears. A clutch mechanism is also interposed between the pair of pressure plates and the inner side of the case and is engaged with the pair of side gears at the inner surface thereof and with the pair of pressure plates at the outer side thereof.

Growing community of inventors

Toyota, Japan

Tooru Kagata