Elevating and Trendelenburg mechanism for an adjustable bed

Details Elevating and Trendelenburg mechanism for an adjustable bed Elevating and Trendelenburg mechanism for an adjustable bed

1975-10-16

1977-05-31

Nunberg, Casmir A.

Beds

Sofa bed

Reverting back

5 63, A61G 700, E03D 134

Patent

active

040259722

ABSTRACT:
An improved control and locking device for a hospital bed such as that disclosed in U.S. Patent Application Ser. No. 496,212, filed on Aug. 9, 1974. The locking device is utilized to provide a positive lock of the hospital bed in a Trendelenburg or reverse Trendelenburg position and eliminate the capability to manualy or inadvertently remove the bed from such position. As depicted herein, the locking device is a pivotal abutment which normally precludes release of a hook holding the bed in a Trendelenburg position. Yet, when the entire bed is raised by its electric motor, the abutment is automatically withdrawn from its abutting, locking position to permit the bed to lower under electric power.

REFERENCES:
patent: 3222693 (1965-12-01), Pruim et al.
patent: 3593350 (1971-07-01), Knight
patent: 3644915 (1972-02-01), Goodman et al.
patent: 3678519 (1972-07-01), Szucs
patent: 3711876 (1973-01-01), Kirkland
patent: 3821821 (1974-07-01), Burst et al.

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