Collapsible support structure and devices formed therefrom

Details Collapsible support structure and devices formed therefrom Collapsible support structure and devices formed therefrom

1978-11-13

1981-01-06

Zugel, Francis K.

Chairs and seats

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

Laterally collapsible

297 45, 5176R, 5180, A47C 400

Patent

active

042432634

ABSTRACT:
An improved collapsible support structure having, in an erect position, a pair of vertical members interconnected by at least one collapsible or foldable support mechanism. The collapsible support mechanism has upper and lower substantially horizontal collapsible connecting members that are interconnected by diagonal support members forming an "X" positioned approximately halfway between the pair of vertical members. Each of the horizontal members is formed of a plurality of pivotally interconnected elements and at least one of the elements of one of the members is modified to maintain a desired angular relationship between the elements. A plurality of the collapsible support structures are combined together or interconnected to form improved collapsible or folding devices.

REFERENCES:
patent: 1259825 (1918-03-01), Basile
patent: 1381136 (1921-06-01), Ribeiro
patent: 2590129 (1952-03-01), Sawaya
patent: 2780506 (1957-02-01), Howe
patent: 3136272 (1964-06-01), Sprigman
patent: 3144841 (1964-08-01), Meringoff
patent: 4030769 (1977-06-01), Peng et al.

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