Vibration isolation apparatus for vehicle sleeper beds

Details Vibration isolation apparatus for vehicle sleeper beds Vibration isolation apparatus for vehicle sleeper beds

1992-11-10

1993-06-15

Trettel, Michael F.

Beds

Vehicle attached

248631, 248562, 248913, A47C 1780

Patent

active

052187284

ABSTRACT:
A sleeping bed for a motor vehicle which is effectively isolated from jars and vibrations encountered during highway travel comprises a movable frame which is supported by inflatable air bags from a stationary frame affixed to the floor of the vehicle. Three position valves control the in-flow and out-flow of air from the air bags, the valve being mechanically coupled by linkages to the movable frame so that its relative displacement controls the pressure within the air bag. The movable frame is supported on the pistons of the air bags by first and second slide members which permit longitudinal and transverse horizontal movement of the movable frame. Springs are employed to restore the movable frame to a neutral horizontal position following acceleration/deceleration forces tending to move the movable frame and mattress in the fore and aft direction and when longitudinal sway forces act on the bed. Effectively coupled in parallel with the air bags and the spring assemblies are hydraulic or air cylinders which function as dampeners to prevent extreme overshoot and/or oscillation of the movable frame following a sudden displacement.

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