Collapsible seat structures

Details Collapsible seat structures Collapsible seat structures

1973-10-25

1976-07-13

Frazier, Roy D.

Chairs and seats

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

Laterally collapsible

248436, 280 39, 280 42, 280242WC, 297 39, 297 42, 297DIG4, A47C 428

Patent

active

039689913

ABSTRACT:
A collapsible volume frame, when erected, presents in each of two opposite side elevations a side space frame defined by four points which if joined would form a quadrilateral; and presents further space frames in the four other aspects. The side space frames are braced by at least one frame element disposed transversely and articulated to them in a triangulated manner. Releasable means resist collapse of the volume frame. These side and further space frames are foldable so that the volume frame when collapsed forms a bundle.

REFERENCES:
patent: 703077 (1902-06-01), Nivison
patent: 1027692 (1912-05-01), Cole
patent: 2460459 (1949-02-01), Kraska
patent: 2485016 (1949-10-01), Rideout
patent: 2665743 (1954-01-01), Cosper
patent: 2766813 (1956-10-01), Kay
patent: 3390893 (1968-07-01), MacLaren
patent: 3736021 (1973-05-01), MacLaren
patent: 3836164 (1974-09-01), Sugino et al.

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