Gearless locking differential

Details Gearless locking differential Gearless locking differential

2007-12-25

2007-12-25

Marmor, Charles A. (Department: 3681)

Planetary gear transmission systems or components

Differential planetary gearing

Bevel gear differential

Reexamination Certificate

active

11189614

ABSTRACT:
A gearless locking differential includes clutch housings containing V-shaped slots that cooperate with a cross pin to disconnect from the differential drive shaft an overrunning driven shaft, characterized in that the wall surfaces that define the V-slots extend parallel with the axis of rotation of the differential housing, and the cross pin has tapered convergent end portions. The frictions packs that releasably connect the side gears to the clutch members include annular friction plates that are arranged between pairs of reaction plates and include polygonal internal surfaces that slidably and non-rotatably engage a corresponding polygonal circumferential surface on the associated side gear. The locking lug and locking slot that cooperate to provided limited angular relative displacement between the clutch housings each have parallel side walls. As a consequence of the invention, the machining and finishing of the components of the differential are achieved in a simplified cost-effective manner.

REFERENCES:
patent: 3233477 (1966-02-01), O'Brien
patent: 4498355 (1985-02-01), Schou
patent: 4735108 (1988-04-01), Teraoka et al.
patent: 5655418 (1997-08-01), Barnholt
patent: 5727430 (1998-03-01), Valente
patent: 6010424 (2000-01-01), Irwin
patent: 6063000 (2000-05-01), Sugimoto
patent: 6374701 (2002-04-01), Tittjung
patent: 6688194 (2004-02-01), Dissett et al.
patent: 2002/0151402 (2002-10-01), Zentmyer

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