Fire escape – ladder – or scaffold – Ladder and platform
Patent
1985-09-06
1986-04-01
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Ladder and platform
182187, 108135, 108152, A63B 2700, A47C 910, A45F 326
Patent
active
045791988
ABSTRACT:
A readily transportable, foldable tree stand for hunters. The stand preferably comprises a first, lower frame member adapted to be unfolded for deployment as a foot rest, and a second, cooperating frame member pivotally coupled in offset relation to said first frame member. The stand may be suspended upon the trunk of a tree or similar vertical support by suitable brackets adapted to grasp an adjustable-length support chain which circumferentially, frictionally surrounds the tree trunk. The second frame member is adapted to assume a generally vertical position after unfolding to function as a back rest for the hunter when deployed. A pair of rigid, cooperating, lateral support struts extend diagonally at the sides of the tree stand between the first and second frame members. Each support strut is articulated, consisting of first upper portions pivotally connected to second lower portions. A rigid, generally rectangular seat pivotally coupled between the first portions of the support struts includes rearwardly projecting brackets adapted to be removably coupled to an appropriately positioned intermediate brace of the second frame member. Because of the offset pivoting of coupled members disclosed, the entire apparatus is quickly folded between relatively flat "horizontal" positions and the installed "tree engaging" position.
REFERENCES:
patent: 3030160 (1962-04-01), Tandy
patent: 3352379 (1967-11-01), Riggs
patent: 3817350 (1974-06-01), Gray
patent: 4022292 (1977-05-01), Van Gompel
patent: 4134474 (1979-01-01), Stavenau
patent: 4369858 (1983-01-01), Babb
patent: 4458782 (1984-07-01), Meyer
patent: 4493395 (1985-01-01), Rittenhouse
Carver Stephen D.
Machado Reinaldo P.
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