Adjustable bed frame assembly

Details Adjustable bed frame assembly Adjustable bed frame assembly

2011-04-26

2011-04-26

Santos, Robert G (Department: 3673)

Beds

Invalid bed or surgical support

Sectional user supporting surface

Reexamination Certificate

active

07930780

ABSTRACT:
A bed frame comprises a lower support structure having a head end and a foot end and a carriage arranged for translational movement on the lower support structure. An upper support structure is mounted on the carriage. The upper support structure includes a seat and an upper body support section pivotally connected thereto. A support arm is pivotally connected between the lower support structure and the upper body support section. An actuator is connected to the lower support structure. A lever arm is connected between the actuator and the carriage. Application of force from the actuator to the lever arm moves the carriage on the lower support structure while applying a lifting moment to the upper body support section. The support arm is arranged such that movement of the carriage toward the head end of the lower support structure also produces a lifting moment on the upper body support section.

REFERENCES:
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patent: 5544376 (1996-08-01), Fromson
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patent: 6006379 (1999-12-01), Hensley
patent: 6393641 (2002-05-01), Hensley
patent: 6735797 (2004-05-01), Long et al.
patent: 6826793 (2004-12-01), Tekulve

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