A differential lock mechanism for use in a vehicle and having a cam mechanism that may be actuated by the vehicle user. The cam mechanism transfers rotational movement to linear movement along the axis of the vehicle axles to move an engagement mechanism into or out of engagement with an axle bevel
A differential lock mechanism for use in a vehicle and having a cam mechanism that may be actuated by the vehicle user. The cam mechanism transfers rotational movement to linear movement along the axis of the vehicle axles to move an engagement mechanism into or out of engagement with an axle bevel gear. The engagement mechanism is also engaged to and rotates with a differential carrier, and thus when it is in the engaged position, it locks the vehicle axles to rotate with the differential carrier.
대표청구항▼
I claim: 1. A vehicle driving apparatus comprising: a pair of output axles mounted in an axle housing; a differential housing mounted in and rotatable with respect to the axle housing; an engagement mechanism for engaging at least one of the output axles to the differential housing to restrict rota
I claim: 1. A vehicle driving apparatus comprising: a pair of output axles mounted in an axle housing; a differential housing mounted in and rotatable with respect to the axle housing; an engagement mechanism for engaging at least one of the output axles to the differential housing to restrict rotation of the at least one axle with respect thereto, the engagement mechanism contacting and rotating with the differential housing and having a first position where movement of the at least one axle is not restricted and a second position where movement of the at least one axle is restricted with respect to the differential housing; and a cam mechanism mounted in the axle housing and comprising a first stationary cam fixed with respect to the axle housing, a second cam which is rotatable with respect to the first cam and an actuation member to cause rotation of the second cam with respect to the first cam, whereby rotation of the second cam causes the engagement mechanism to move from the first position to the second position. 2. A vehicle driving apparatus as set forth in claim 1, further comprising a pair of axle bevel gears, each axle bevel gear mounted on one end of one of the output axles. 3. A vehicle driving apparatus as set forth in claim 2, wherein the engagement mechanism comprises a pair of gear dogs slidable with respect to the differential housing along the longitudinal axis of the pair of output axles, and the gear dogs engage the teeth of one of the axle bevel gears when the engagement mechanism is in the second position. 4. A vehicle driving apparatus as set forth in claim 3, wherein the engagement mechanism further comprises a load plate. 5. A vehicle driving apparatus as set forth in claim 1, wherein the actuation member extends out of the axle housing and is generally perpendicular to the longitudinal axis of the output axles. 6. A vehicle driving apparatus comprising: a pair of output axles mounted in an axle housing, each output axle having an axle bevel gear mounted on one end thereof; a differential housing mounted in and rotatable with respect to the axle housing; at least one gear dog located between the two bevel gears and engaged to the differential housing and slidable in a direction parallel to the longitudinal axis of the axles between a first position where the at least one gear dog is not in contact with either of the two bevel gears, and a second position where the at least one gear dog contacts the teeth of one of the bevel gears to rotationally lock said one of the bevel gears to the differential housing; and a cam mechanism mounted in the axle housing comprising a first stationary cam fixed with respect to the axle housing, a second cam which is rotatable with respect to the first stationary cam and an actuation member to cause rotation of the second cam with respect to the first cam, whereby rotation of the second cam causes the gear dog to slide to the second position. 7. A vehicle driving apparatus as set forth in claim 6, said at least one gear dog comprising a pair of gear dogs located between the two bevel gears, wherein both gear dogs contact the gear teeth of only one of the bevel gears to rotationally lock said one of the bevel gears to the differential housing when the gear dogs are in the second position. 8. A vehicle driving apparatus comprising: a pair of output axles mounted in an axle housing; a pair of axle bevel gears, each mounted on one of the output axles; a differential housing mounted in the axle housing and rotatable with respect to the axle housing; at least two differential gears mounted in the differential housing and rotatable with respect to the axle bevel gears; at least one gear dog in contact with the differential housing and slidable with respect thereto; and an actuating mechanism comprising a load plate located adjacent to a first of the pair of axle bevel gears and a cam mechanism mounted in the axle housing and engaged to the load plate, whereby actuation of the actuating mechanism causes the at least one gear dog to engage only the second of the pair of axle bevel gears. 9. A vehicle driving apparatus as set forth in claim 8, said at least one gear dog comprising a pair of gear dogs in contact with the differential housing, wherein actuation of the actuating mechanism causes both gear dogs to engage the gear teeth of only said second bevel gear. 10. A vehicle driving apparatus as set forth in claim 9, wherein the load plate is in the shape of an annular ring having two arms formed on one side thereof, and each arm engages one of the gear dogs. 11. A vehicle driving apparatus comprising: a pair of output axles mounted in an axle housing, each output axle having an axle bevel gear mounted on one end thereof; a differential housing mounted in the axle housing and rotatable with respect to the axle housing; at least two differential gears mounted in the differential housing and rotatable with respect to the axle bevel gears; at least one gear dog in contact with the differential housing; a locking mechanism located adjacent one of the axle bevel gears, the locking mechanism causing the at least one gear dog to engage the other axle bevel gear so that the other axle bevel gear rotates with the differential housing when the locking mechanism is actuated; and a cam mechanism to actuate the locking mechanism, wherein the cam mechanism comprises a first stationary cam fixed with respect to the axle housing, a second cam which is rotatable with respect to the first cam and movable along the axis of the output axles, and an actuation member which is rotatable to cause rotation of the second cam with respect to the first cam. 12. A vehicle driving apparatus comprising: a pair of output axles mounted in an axle housing, each output axle having an axle bevel gear mounted on one end thereof, each axle bevel gear having a set of gear teeth formed thereon, wherein the gear teeth of the two axle bevel gears are facing one another; a differential housing mounted in the axle housing and rotatable with respect to the axle housing; at least two differential gears mounted in the differential housing and engaged to the gear teeth of both axle bevel gears; and at least one gear dog engaged to the differential housing and movable between a first position where it is not in contact with either of the two axle bevel gears and a second position where it contacts the gear teeth of only one of the axle bevel gears to rotationally lock said one of the axle bevel gears to the differential housing. 13. A vehicle driving apparatus comprising: a pair of output axles mounted in an axle housing, each output axle having an axle bevel gear mounted on one end thereof; a differential housing mounted in the axle housing and rotatable with respect to the axle housing; a cross shaft mounted in the differential housing; at least two differential gears mounted on the cross shaft and engaged to the teeth of the axle bevel gears; and at least one gear dog mounted separate from the cross shaft and engaged to the differential housing, the at least one gear dog having a first position where it is not in contact with either axle bevel gear and a second position where it is engaged to the teeth of one of the axle bevel gears, whereby the teeth of said one axle bevel gear are simultaneously engaged to the differential gears and the at least one gear dog when the at least one gear dog is in the second position. 14. A vehicle driving apparatus as set forth in claim 13, wherein the cross shaft is solid. 15. A vehicle driving apparatus as set forth in claim 13, said at least one gear dog comprising a pair of gear dogs mounted separate from the cross shaft and engaged to the differential housing. 16. A vehicle driving apparatus comprising: a pair of output axles mounted in an axle housing, each output axle having an axle bevel gear mounted on one end thereof; a differential housing mounted in the axle housing and rotatable with respect to the axle housing; a cross shaft mounted in the differential housing and at least two differential gears mounted on the cross shaft and engaged to the axle bevel gears; an engagement mechanism for restricting rotation of one of the output axles with respect to the differential housing; and a cam mechanism for moving the engagement mechanism into engagement with one of the axle bevel gears, wherein the engagement mechanism and cam mechanism are located on opposite sides of the center line of the cross shaft. 17. A vehicle driving apparatus as set forth in claim 16, wherein actuation of the cam mechanism moves the cam mechanism toward the center line of the cross shaft and the engagement mechanism away from the center line of the cross shaft.
Sander Edmund (Leonberg DEX) Meffert Peter (Tiefenbronn DEX) Hoebel Peter (Neuhausen-Schellbronn DEX), Differential cage for absorbing shock mounted in a differential casing.
Klotz James R. (Mt. Clemens MI) Mikel Steven A. (Farmington Hills MI) Frait John A. (Walled Lake MI) Martin Berthold (Utica MI), Multi-pinion differential assembly.
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