Hydraulic suspension system for a vehicle cab

Details Hydraulic suspension system for a vehicle cab Hydraulic suspension system for a vehicle cab

1995-03-31

1997-04-22

Chin, Gary

Boots, shoes, and leggings

180 8913, 180 8915, 296190, B60G 1700, B62D 3310

Patent

active

056234104

ABSTRACT:
A vehicle cab attitude controlling system including a frame supported by wheels of the vehicle, a cab mounted on the frame; a cab suspension system mounting the cab on the frame and allowing relative movement therebetween, the cab suspension system having a plurality of seats each supporting a different portion of the cab and at least one seat being detachable therefrom; and a cab actuator for activating the cab suspension system to adjust vertical displacements between said frame and the seats. Also included is an engine mounted on the frame below the cab; an auxiliary actuator for producing pivotal movement of the cab off of the one seat to provide access to the engine; a cab sensing system for detecting vertical displacements between the frame and a plurality of spaced apart portions of the cab and the vertical displacement between the frame and the one seat; and a control system for controlling the cab actuator in response to the cab sensing system, and operable with the cab supported on the one seat to maintain a given attitude of the cab with respect to a road surface, and operable with the cab detached from the one seat to establish a predetermined vertical displacement between the frame and the one seat.

REFERENCES:
patent: 4451079 (1984-05-01), Takahashi
patent: 4515234 (1985-05-01), Loy et al.
patent: 5044455 (1991-09-01), Tecco et al.
patent: 5555501 (1996-09-01), Furihata et al.

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