Automatic seat brake

Details Automatic seat brake Automatic seat brake

1977-03-09

1978-09-26

Peters, Jr., Joseph F.

Motor vehicles

Including one or more ski-like or runner members

With at least one surface-engaging propulsion element

188109, 303 19, B60T 702

Patent

active

041162960

ABSTRACT:
An electro-hydraulic automatic seat brake system which is effective to automatically set the hydraulic service brakes and shut down the engine of an industrial vehicle whenever the operator's seat is unoccupied. In order to release the brakes after the seat is reoccupied, the operator must turn on the engine ignition circuit and close a separate brake release switch. The system is charged immediately upon starting the engine by means of an engine-driven pump before other hydraulic components can be operated, and the charge is maintained when the engine is shut down by means of an accumulator. According to one aspect of the invention the hydraulic pressure on the service brakes is automatically released when a mechanical handbrake is set. According to another aspect of the invention means are provided to allow the engine to keep running when the operator's seat is unoccupied, provided that the vehicle transmission is in a neutral condition.

REFERENCES:
patent: 3360305 (1967-12-01), Ryskamp
patent: 3653724 (1972-04-01), Smith
patent: 3788431 (1974-01-01), York
patent: 3790223 (1974-02-01), Fontaine
patent: 3807343 (1974-04-01), Peebles

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