Collapsible support

Details Collapsible support Collapsible support

1993-07-07

1995-04-11

Chin-Shue, Alvin C.

Fire escape, ladder, or scaffold

Unitary foldable, rigid scaffold or ladder

Trestle

182225, 182155, 248439, 2481886, F16M 1100

Patent

active

054049628

ABSTRACT:
A collapsible support includes a cross member and a pair of collapsible support brackets having pairs of generally tubular legs extending therefrom. Each support bracket includes a generally planar base member secured to the cross member and a pivotally attached leg carrier. The leg pairs are secured to the leg carrier and are pivotable therewith from extended load bearing positions to collapsed storage or transport positions. A spring lock mechanism is provided which engages a portion of the leg carrier in the extended load bearing position and secures it in a releasable attachment in the load bearing position.

REFERENCES:
patent: 2271701 (1942-02-01), Maxwell
patent: 3502174 (1970-03-01), Cannon
patent: 4063703 (1977-12-01), Shy
patent: 4515243 (1985-05-01), Prior

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