Bed arrangement

Details Bed arrangement Bed arrangement

1976-07-23

1977-12-13

Nunberg, Casmir A.

Beds

Sofa bed

Reverting back

5 68, A61G 710

Patent

active

040620751

ABSTRACT:
A bed having a torque-compensated parallelogram lifting arm arrangement. The bed has a subframe vertically adjustable by the parallelogram lifting arm arrangement and thereby retains a level relationship at all height adjustment levels.
An articulated mattress support surface is provided, which is formed by articulated pivotally interconnected head or back, seat, thigh and leg sections mounted on the level vertically adjustable subframe. The seat section is double-pivoted, and enables simple and effective Trendelenburg and Reverse Trendelenburg positioning independent of any position of the height-adjustable supporting subframe. The seat, thigh, and head sections are articulated by cam and cam follower drive arrangements. Selective pivot defeat means are provided to enable selective pivotal lowering of the thigh and head or back sections without pivoting the seat section, and independent of the supporting subframe position, enabling simple and effective hyperextension positioning. The back and thigh sections may be pivoted up and down to at and above horizontal by patient control; other movements and positioning are nurse-controlled by a foot end mounted nurse control panel. A cantilever bumper, having wall engaging rollers, is pivotally mounted at the head end of the bed on the base, and is automatically lowered when the bed height is lowered to assure spaced positioning of the bed from a wall. The bumper self-retains its set angular position by frictional action at its pivot mounting connection with the base. Sockets are provided on the vertically adjustable always level subframe at the corners and midsection for mounting IV rods, fracture frames, patient control pendant holders, etc. Vertical height adjustment and all mattress support surface articulation action can be selectively effected by electric motor control or hand crank.

REFERENCES:
patent: 3593350 (1971-07-01), Knight
patent: 3644945 (1972-02-01), Goodman
patent: 3710404 (1973-01-01), Peterson
patent: 3724004 (1973-04-01), Behrens
patent: 3958283 (1976-05-01), Adams et al.
patent: 3972081 (1976-08-01), Stern et al.

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