Collapsible support structure

Details Collapsible support structure Collapsible support structure

2006-08-16

2009-10-27

Cranmer, Laurie K (Department: 3636)

Chairs and seats

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

Laterally collapsible

C297S042000, C297SDIG010, C280S650000, C280S250100

Reexamination Certificate

active

07607725

ABSTRACT:
A collapsible support structure for use with a wheeled or non-wheeled chair includes a plurality of pivotally connected rigid poles which are parallel to one another in a collapsed position. Stretchable tension straps are strung on the poles to provide tension therebetween when in an erected position. A first collapsible assembly includes a front hub and four struts pivotally connected thereto. A second collapsible assembly includes a rear hub and four struts pivotally connected thereto. The hubs are slidably mounted on a spar. Four legs are pivotally connected to the spar and respectively to one of the struts. A collapsible seat is connected to first and second seat poles each having first and second telescoping segments, each pivotally connected respectively to one of the struts. Two arm poles are respectively pivotally connected to the first segments and to two back poles, which are respectively pivotally connected to each second segment.

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