Vehicle cab motion control
First Claim
Patent Images
1. An apparatus for use in a vehicle having an operator'"'"'s cab which is movable relative to a frame of the vehicle, said apparatus comprising:
- a cab motion control motor connected with the frame and cab of the vehicle and operable under the influence of fluid pressure to control motion of the cab relative to the frame, said cab motion control motor having first and second cylinder chambers disposed on opposite sides of a piston;
first motor control valve means for controlling fluid pressure conducted to said first cylinder chamber; and
second motor control valve means for controlling fluid pressure conducted to said second cylinder chamber.
2 Assignments
0 Petitions
Accused Products
Abstract
An apparatus (30) which controls the motion of a cab (12) of a vehicle relative to a frame of the vehicle includes a cab motion control motor (38). A pair of motor control valves (70 and 72) are provided to control fluid pressure conducted to the cab motion control motor (38). The motor control valves (70 and 72) are supplied with fluid under pressure by a power steering pump (22). The power steering pump (22) also provides fluid under pressure to a power steering motor (20) which is operable to turn steerable vehicle wheels (18).
26 Citations
5 Claims
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1. An apparatus for use in a vehicle having an operator'"'"'s cab which is movable relative to a frame of the vehicle, said apparatus comprising:
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a cab motion control motor connected with the frame and cab of the vehicle and operable under the influence of fluid pressure to control motion of the cab relative to the frame, said cab motion control motor having first and second cylinder chambers disposed on opposite sides of a piston; first motor control valve means for controlling fluid pressure conducted to said first cylinder chamber; and second motor control valve means for controlling fluid pressure conducted to said second cylinder chamber. - View Dependent Claims (2, 3, 4)
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5. An apparatus for use in a vehicle having steerable vehicle wheels and an operator'"'"'s cab which is movable relative to a frame of the vehicle, said apparatus comprising:
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a power steering motor connected with the steerable vehicle wheels and operable under the influence of fluid pressure to turn the steerable vehicle wheels; a cab motion control motor connected with the frame and cab of the vehicle and operable under the influence of fluid pressure to control motion of the cab relative to the frame; a power steering pump connected in fluid communication with said power steering motor and said cab motion control motor; and valve means for controlling fluid pressure conducted from said power steering pump to said cab motion control motor; wherein said cab motion control motor includes first and second cylinder chambers disposed on opposite sides of a piston, said valve means includes first motor control valve means for controlling fluid pressure conducted from said power steering pump to said first cylinder chamber and second motor control valve means for controlling fluid pressure conducted from said power steering pump to said second motor cylinder chamber.
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Specification