Fire escape – ladder – or scaffold – Scaffold external of shaft
Patent
1994-05-09
1995-06-27
Chin-Shue, Alvin C.
Fire escape, ladder, or scaffold
Scaffold external of shaft
182 92, 182223, A01M 3102
Patent
active
054272017
ABSTRACT:
Disclosed is a new portable wedging tree stand for providing a small lightweight foldable tree fork engaging support for elevating an outdoor enthusiast above ground level for hunting, photography, bird watching, and the like. The portable wedging tree stand comprises a rectangular platform whereupon the user may stand. The platform has a longitudinal V-shaped notch formed in both ends thereof wherein tree trunk fork members may be engaged. A plurality of tree surface piercing teeth extends longitudinally from the notched ends of the platform whereby the platform may be stabilized to prevent unwanted rocking motion during use. The platform is foldable laterally for storage, transport, and to enable a leveraged wedging action whereby the longitudinal tree surface piercing teeth may be firmly set into the tree during installation of the stand. A sling extends from one corner of the platform to the diagonally opposing corner thereof whereby the portable tree stand may be suspended from the user's shoulder for easy transport thereof. The platform may be constructed of lightweight metal or hardwood. In an alternate embodiment, the portable wedging tree stand includes a detachable collapsible stool upon which the user may sit during use of the stand. The stool also has a V-shaped notch with a plurality of teeth projecting longitudinally therefrom whereby the seat may be stabilized to prevent unwanted motion. A seat retaining strap is included for cinching the tree fork member securely into the V-shaped notch of the seat for improved stability. A vertical support member with a plurality of lockable discrete extensible positions adjustably supports the seat spaced above the platform.
REFERENCES:
patent: 3762502 (1973-10-01), Lawson
patent: 3944022 (1976-03-01), Ming
patent: 4445591 (1984-05-01), Mitchell
patent: 4730699 (1988-03-01), Threlkeld
patent: 4787476 (1988-11-01), Lee
Hertel Cinthia R.
Hertel Joseph B.
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