Fire escape – ladder – or scaffold – Means maintaining platform level on angularly movable support – Swingable support
Patent
1990-10-31
1992-04-28
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Means maintaining platform level on angularly movable support
Swingable support
212165, 74474, B66F 1104, B66F 906
Patent
active
051079542
ABSTRACT:
A mobile vehicular apparatus for moving an operator around a three-dimensional aerial work location such as an electric cable or wire supported on posts includes a mobile vehicle having a vehicle body, a boom movably mounted on the vehicle body, a platform mounted on a distal end of the boom, for carrying an operator thereon, the platform having an operator's seat, and a control device operable by the operator on the platform, for moving the boom to move the platform into a three-dimensional position. The control device comprises a plurality of swingable foot treadles disposed in front of the operator's seat, detecting means for detecting swinging movement of the foot treadles, and control means for controlling movement of the platform in response to detected signals from the detecting means. The foot treadles are arranged such that directions in which the foot treadles swing correspond respectively to directions in which the platform moves.
REFERENCES:
patent: 2450152 (1948-09-01), Miller
patent: 2616768 (1952-11-01), Stemm
patent: 2954092 (1960-09-01), Trump
patent: 3156313 (1964-11-01), Peterson
patent: 3250343 (1966-05-01), Maloney
patent: 3866713 (1975-02-01), Carpenter et al.
patent: 4724924 (1988-02-01), Breyer
No affiliations
Aichi Sharyo Co. Ltd.
Machado Reinaldo P.
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