Portable, adjustable backrest for beds and the like

Details Portable, adjustable backrest for beds and the like Portable, adjustable backrest for beds and the like

1978-06-16

1980-01-29

Nunberg, Casmir A.

Beds

Having safety device

Side guard

5 79, 297377, A47C 2100

Patent

active

041853423

ABSTRACT:
A portable, adjustable backrest for use primarily on a bed, sofa or the like which takes the form of a backrest panel which is hingedly connected to a base which is to be placed upon the bed, sofa or the like. The backrest panel is to be adjustable with respect to the base in various inclined positions. The adjustments of the backrest panel is provided through a crank arm assembly which operates through a disc assembly which in turn rolls upon a thin flexible strap assembly. An arm assembly is attached to the disc assembly which is to pivot with the disc assembly. The outer end of the arm assembly is to be in contact with the backside of the backrest panel. The pivoting of the arm assembly to different positions results in locating of the backrest panel to various inclined positions with respect to the base.

REFERENCES:
patent: 1404482 (1922-01-01), Sawyer
patent: 1658737 (1928-02-01), Ortmeier
patent: 1798901 (1931-03-01), Puret
patent: 3264382 (1966-08-01), Angell et al.
patent: 3931653 (1970-01-01), Bien

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