Fire escape – ladder – or scaffold – Pole or strand grasping-type climber – Foot- or leg-attachable
Patent
1992-11-16
1994-02-15
Chin-Shue, Alvin C.
Fire escape, ladder, or scaffold
Pole or strand grasping-type climber
Foot- or leg-attachable
182187, A63B 2702
Patent
active
052858685
ABSTRACT:
A tree climber comprising a pair of climbing members, adapted to be affixed to the user's feet by quick release straps. Each climbing member includes a support arm extending forward from a platform portion and terminating at one end of a movable hook shaped clamping portion which engages the back side of the pole. Several embodiments show a clamping portion which is adjustably affixed to the terminus of the support arm with either a slidable collar and tube configuration or a clamped configuration. Another embodiment includes a slidable collar affixed to the platform portion, the support arm extending therethrough to a desired length corresponding to the diameter of the pole. The adjustable clamping portion of any of the embodiments may be used in combination with the extendable support arm to accommodate a wide range of tree trunk or pole diameters and to easily traverse protruding limbs which would otherwise arrest further vertical progress. A safety strap assembly secures the tree climber to the tree at the desired elevation. In its collapsed configuration the climbing members are nested and easily transported or stored.
REFERENCES:
patent: 1882381 (1932-10-01), Davis
patent: 2836335 (1958-05-01), Schuman
patent: 2842300 (1958-07-01), Johnson
patent: 3340961 (1967-09-01), Provaznik
patent: 4225013 (1980-09-01), Sample
patent: 4368800 (1983-01-01), Campbell
patent: 4601364 (1986-07-01), York
patent: 5009283 (1991-04-01), Prejean
patent: 5165499 (1992-11-01), Bell
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