Extendable bed mechanism

Details Extendable bed mechanism Extendable bed mechanism

1978-03-09

1979-09-04

Nunberg, Casmir A.

Beds

Sofa bed

Extension

A47C 1710

Patent

active

041662997

ABSTRACT:
An extendable bed mechanism connected to a sofa bed to allow conversion between a sofa and a bed in an easy, facilitated manner. The mechanism is relatively inexpensive and light weight and comprises a movable panel, two pairs of brackets and two sets of wheels or rollers for supporting the panel, preventing wobble and allowing minimum physical effort. A simple locking handle is also provided for restraining the panel in an extended or a retracted position. It is contemplated that Voraspring brand expanded polymer will be used for the cushions-mattress; in combination this assures a superior sleeping surface.

REFERENCES:
patent: 479071 (1892-07-01), Holstein
patent: 1346582 (1920-07-01), Zwolinski
patent: 2932541 (1960-04-01), Gulbrandsen
patent: 3041635 (1962-07-01), Holtzclaw
patent: 3710403 (1973-01-01), Weldner et al.
patent: 3782800 (1974-01-01), Remington et al.
patent: 3972079 (1976-08-01), Shellow
patent: 3974529 (1976-09-01), Johnson et al.
patent: 3974529 (1976-08-01), Johnson et al.
patent: 3995927 (1976-12-01), Stein
patent: 4016611 (1977-04-01), Harty

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