Folding chair frame tube positioning device

Details Folding chair frame tube positioning device Folding chair frame tube positioning device

1990-08-29

1991-10-08

Brown, Peter R.

Chairs and seats

Collapsible chair; i.e., relatively folding bottom, back,...

With folding armrest

297 16, 403 92, A47C 400

Patent

active

050548484

ABSTRACT:
Disclosed is a folding chair frame tube positioning device, which is comprised of a pivot device and a coupling buckle to releasably secure the back frame and the back stand of the chair together. The pivot device comprises a transverse axle secured to the lower end of the back frame at an outer side and two parallel plates vertically extending downward therefrom to pivotably bilaterally connect to the middle part of a back stand. The coupling buckle comprises a ring-shaped portion sleeved on the back stand, and an unitary side projection having a retaining notch on the bottom for engaging with the transverse axle of the pivot device.

REFERENCES:
patent: 2857086 (1958-09-01), Weiner
patent: 2957516 (1960-10-01), Kubisz
patent: 3279734 (1966-10-01), Kramer
patent: 4536026 (1985-08-01), Cornell
patent: 4772068 (1988-09-01), Gleckler et al.
patent: 4963762 (1990-10-01), Brooks

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