Fire escape – ladder – or scaffold – Scaffold external of shaft
Patent
1992-08-20
1994-05-24
Chin-Shue, Alvin C.
Fire escape, ladder, or scaffold
Scaffold external of shaft
182116, 182 20, A01M 3102
Patent
active
053140427
ABSTRACT:
A rearrangeable assembly can take on either a tree stand configuration or an equipment transport configuration. A two section ladder is hinged for 180.degree. rotation from a folded substantially horizontal condition in the transport configuration to an open substantially vertical condition in the stand configuration. A platform is hingedly connected for approximately 90.degree. rotation between substantially horizontal conditions in either the stand configuration or the transport configuration. A main carriage with relatively large wheels connects beneath the ladder and a front carriage with relatively small wheels connects in front of the ladder in the transport configuration. Preferably, a steering frame connects to the platform in the transport configuration. Additionally, a brake for controlling the rate of rotation of the main carriage wheels is connected between the steering frame and the main carriage in the transport configuration. All of these connections are made by removable retaining pins so that the assembly can be quickly rearranged from the transport configuration to the stand configuration in which the ladder is fully extended and the platform is mounted at the top of the ladder in approximately a 95.degree. relationship to the ladder so that the tree stand will lean slightly toward the tree.
REFERENCES:
patent: 165168 (1875-07-01), Rowland
patent: 5009283 (1991-04-01), Prejean
patent: 5064020 (1991-11-01), Eagleson
patent: 5105908 (1992-04-01), Freund
patent: 5195611 (1993-03-01), Untz
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