Parking device for automatic transmission

Details Parking device for automatic transmission Parking device for automatic transmission

1986-10-06

1988-01-19

Herrmann, Allan D.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

744115, 188 31, 188 69, B60K 4126, B60T 100

Patent

active

047199997

ABSTRACT:
A parking device for an automatic transmission wherein a parking gear provided in a transmission for the automatic transmission comprising the transmission disposed at a rear stage of a torque converter is locked at the time of parking; characterized by that a leaf spring, which urges a locking arm apart from a parking gear when a driving mode is selected to a range other than P-range, is provided on a push rod moving the locking arm which locks the parking gear toward the parking gear; a pin serving as a fulcrum of the leaf spring is held to a housing of the transmission at a position where a spring force of said leaf spring functions so as to part the locking arm from the parking gear when the driving mode is selected to a range other than P-range; and the leaf spring is formed into such a shape that the leaf spring does not contact with the pin as the driving mode is shifted from R-range to P-range.

REFERENCES:
patent: 4576261 (1986-03-01), Barr
patent: 4614256 (1986-09-01), Kuwayama et al.
patent: 4645046 (1987-02-01), Takano et al.

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