Radially outward return spring for transmission brake

Details Radially outward return spring for transmission brake Radially outward return spring for transmission brake

1980-10-30

1984-01-24

Braun, Leslie A.

Machine element or mechanism

Gearing

In series plural interchangeably locked nonplanetary units

192 7028, F16H 3700

Patent

active

044268912

ABSTRACT:
A transmission has a gear mechanism which is selected between speeds by selective engagement of a brake including first and second friction plate elements. A piston is driven by pressure in a fluid pressure chamber so as selectively to squeeze the friction plate elements together and engage them. A return spring for releasing this engagement is mounted parallel to the axis of rotation of the brake in a cavity formed in the transmission housing, radially outside the brake, and biases the piston in the release direction. This allows the transmission to be axially shorter than when the return spring is mounted radially inwards of the brake.

REFERENCES:
patent: 2254335 (1941-09-01), Vincent
patent: 2593629 (1952-04-01), Swift
patent: 2690086 (1954-09-01), Cook
patent: 2869400 (1959-01-01), Langdon
patent: 3533307 (1970-10-01), Gunderson
patent: 3537556 (1970-11-01), Pfeffer
patent: 3877321 (1975-04-01), Storer, Jr.
patent: 3916729 (1975-11-01), Herr
patent: 3939733 (1976-02-01), Wetrich

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