Adjustable bed with side rail

Details Adjustable bed with side rail Adjustable bed with side rail

1992-04-22

1992-12-29

Trettel, Michael F.

Beds

Having safety device

Side guard

5428, 5425, A47C 2108

Patent

active

051739755

ABSTRACT:
An adjustable bed includes a patient operated linear positioner, a rail assembly and a leg lift mechanism. The patient operated linear positioner includes a subassembly with a bellcrank which pivots by a patient operated soft strap. When the strap is pulled, the bellcrank pushes a cable inward which, in turn, releases a positioner rod so that the bed may be adjusted. The side rail assembly includes a J-shaped attachment bar and an idler link which acts to move the side rail both upward and forward when the head section of the adjustable bed is raised. A bed side rail may be attached to a bed frame through the use of a unique attachment mechanism which requires no tools. A further aspect of the invention utilizes a scissors-type leg lifting mechanism for holding and controlling the rate of collapsing movement of the foot section of a bed mattress frame. The leg lifting mechanism includes a mechanical lock and gas piston subassembly.

REFERENCES:
patent: 2817855 (1957-12-01), Pratt
patent: 3823428 (1974-07-01), Whyte
patent: 3855654 (1974-12-01), Pivacek
patent: 3930273 (1976-01-01), Stern
patent: 3932903 (1976-01-01), Adams et al.
patent: 3971083 (1976-06-01), Peterson
patent: 4993089 (1991-02-01), Solomon et al.

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