Declutching device having an hydraulic actuator for snap-fitting

Details Declutching device having an hydraulic actuator for snap-fitting Declutching device having an hydraulic actuator for snap-fitting

1994-01-28

1995-03-21

Pitts, Andrea L.

192 clutches and power-stop control

Clutches

Operators

192 98, 192110B, F16D 2508

Patent

active

053987977

ABSTRACT:
A declutching device comprises an hydraulic actuator, a preloading spring which permanently bias the movable member of the hydraulic actuator towards its retracted position with respect to the fixed member of the actuator, and a retaining element for retaining the movable member in its extended position with respect to the fixed member. The retaining element comprises a locking ring which is held under precompression in a groove formed in the movable member of the actuator, while another groove, with a stepped base, is formed in the fixed member of the actuator. The base of this latter groove comprises at least two steps, offset axially from each other and having different diameters, namely a first step for holding the locking ring at least partially engaged in the groove of the movable member, and a step which is adapted to enable it to escape automatically from this groove.

REFERENCES:
patent: 4399898 (1983-08-01), Olschewski et al.
patent: 4632237 (1986-12-01), Maycock et al.
patent: 4778039 (1988-10-01), Eliasson
patent: 5014840 (1991-05-01), Tojima

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