Transmission lock mechanism

Details Transmission lock mechanism Transmission lock mechanism

1978-10-20

1981-02-24

Krizmanich, George H.

Brakes

Wheel

Positive lock

B62C 702

Patent

active

042522196

ABSTRACT:
A manually operable locking mechanism for an automatic transmission has a pawl which engages a toothed member connected to the transmission output shaft. The pawl is controlled for engagement and disengagement with the toothed member through a manually operated cam which moves a lock lever toward the engaged position. The lock lever, through a tension spring, urges a lock strut to enforce engagement of the pawl. On manual disengagement, the cam contacts and moves the lock strut to relieve the locking force from the pawl thus permitting disengagement of the pawl and the toothed member. The lock lever abuts the cam after disengagement to establish the relative positions of the cam, lock lever and lock strut when the disengage position is selected.

REFERENCES:
patent: 2860731 (1958-11-01), Hause
patent: 2954103 (1960-09-01), Sand
patent: 2964135 (1960-12-01), Sand
patent: 3074513 (1963-01-01), Robinson

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