High/low mechanism for a bed

Beds – Invalid bed or surgical support – Vertically movable support for whole body of user

Patent

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Details

A61G 7012, A61G 7015

Patent

active

056850352

ABSTRACT:
An adjustable bed includes a mattress frame having pivotally interconnected sections, a main or base frame supporting the matress frame and telescoping leg assemblies. A first motor drive actuator is supported on the main frame. The first actuator engages a crank arm or lever fixed to a head section of the mattress frame. A second actuator is mounted on the base frame. A second actuator engages a crank arm attached to a knee section of the mattress frame when the actuator is moving to a fully retracted position. A cable carrier is engaged by the second actuator as it moves to a fully extended position. A cable assembly interconnects the cable carrier with the telescoping leg assemblies. The second and moves the mattress frame between low and high positions.

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