Differential locking mechanism for a drive axle assembly

Details Differential locking mechanism for a drive axle assembly Differential locking mechanism for a drive axle assembly

2006-01-31

2006-01-31

Wright, Dirk (Department: 3681)

Planetary gear transmission systems or components

Fluid drive or control of planetary gearing

Control of differential planetary gearing

C475S231000

Reexamination Certificate

active

06991572

ABSTRACT:
A drive axle assembly (10) includes a carrier (24) for supporting a differential case (22) with axle shafts (14, 16) extending therethrough and rotatable with the differential case (22) relative to the carrier (24). A plurality of friction discs (74, 76) are disposed within the differential case (22) and are alternatively connected to the differential case (22) and a drive hub (78), which is connected to one of the axle shafts (14). A sleeve (100) is operably connected to a piston (90) for generating a thrust force and for transmitting the thrust force through the sleeve (100) to move the friction discs (74, 76) closer together. A plurality of levers (104) are operably connected one with the other and disposed between the sleeve (100) and the friction discs (74, 76) to amplify the thrust force of the sleeve (100).

REFERENCES:
patent: 3107766 (1963-10-01), Pritchard
patent: 4644823 (1987-02-01), Mueller
patent: 4712659 (1987-12-01), Flotow
patent: 4848549 (1989-07-01), Kammler et al.
patent: 3839787 (1989-06-01), None
patent: 19848582 (2000-04-01), None
patent: 0321335 (1988-12-01), None
European Search Report, International Application No. 04075336.0-1523-; International Filing Date Feb. 4, 2004.

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