Hydraulic cab tilting system having full locking with controlled

Details Hydraulic cab tilting system having full locking with controlled Hydraulic cab tilting system having full locking with controlled

1981-05-27

1983-10-18

Song, Robert R.

Motor vehicles

Bodies

Movable cab or operator's station

91437, 91450, B62D 3306

Patent

active

044100566

ABSTRACT:
An hydraulic tilt system and method for its use with a cab pivotally mounted on a motor vehicle frame. An hydraulic piston-cylinder assembly pivotally connects between the cab and the frame. A remote control station has an hydraulic pump, a reservoir, and a control for operating the pump to tilt the cab. Hydraulic lines connect the control station with the piston-cylinder assembly. Check valves in the hydraulic lines stop the tilting motion of the cab in case of loss of hydraulic pressure. A controlled return free-fall valve is also disposed in the hydraulic lines to selectively restrict the flow of hydraulic fluid.

REFERENCES:
patent: 2873762 (1959-02-01), Tennis
patent: 2980135 (1961-04-01), Tennis
patent: 3438307 (1969-04-01), Ahlenius
patent: 3473443 (1969-10-01), Mikkelsen
patent: 3761123 (1973-09-01), Neill et al.
patent: 3801151 (1974-04-01), Reynolds et al.
patent: 3944017 (1976-03-01), Foster
patent: 3965587 (1976-06-01), Johns, Jr.
patent: 4081053 (1978-03-01), Sherman
patent: 4194436 (1980-03-01), Imada

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