Device for controlling a part-time drive axle for a motor vehicl

Details Device for controlling a part-time drive axle for a motor vehicl Device for controlling a part-time drive axle for a motor vehicl

1994-04-08

1996-08-06

Lorence, Richard M.

192 clutches and power-stop control

Clutches

Automatic

192 50, F16D 41064

Patent

active

055425151

ABSTRACT:
An automatic spindle engager for a part-time axle of a four-wheel drive motor vehicle includes a wheel spindle that carries a wheel, an outer drive member, inner drive member drivably connected to an engine through an axleshaft, a set of drive rollers and clutch surfaces for drivably connecting the outer member and inner member, a set of spring loaded trigger rollers and inclined clutch surfaces on which the rollers are held, and a retainer movable with the changing position of the trigger rollers for transmitting movement of the trigger rollers to the set of drive rollers. Pairs of inclined clutch surfaces form detents in which the drive rollers are located when no torque is transmitted through the mechanism. The drive rollers move on their inclined clutch surfaces in accordance with movement of the retainer. This drivably connects a road wheel and the driven axle only when torque is transmitted in either direction from the engine to the wheels and from the wheels to the engine.

REFERENCES:
patent: 836035 (1906-11-01), Hendricks
patent: 4341281 (1982-07-01), Nagy
patent: 4620621 (1986-11-01), Kulczycki et al.
patent: 5195604 (1993-03-01), Brockett et al.
USSN 08/071,884, filed Jun. 7, 1993, "All-Wheel Drive Free-Wheel Mechanism for a Motor Vehicle", John H. Tanzer, inventor.

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