Land vehicles – Wheeled – Body with bracketed-type or nonsuspended axles
Patent
1996-09-09
1998-06-09
Johnson, Brian L.
Land vehicles
Wheeled
Body with bracketed-type or nonsuspended axles
280 432, 2807661, 269905, B62D 2100
Patent
active
057623481
ABSTRACT:
A carriage has a wheeled base with an articulated frame for supporting a construction panel in a multitude of operator-defined orientations during transportation, fitting and installation of the panel. The frame and a construction panel secured to the frame are movable relative to the base between (a) a reclined transport position in which the center of mass of the construction panel overlies the area bounded by the wheels of the base to enhance stability of the carriage during transportation of the panel, and (b) an upright installation position in which the center of mass of the construction panel is located forwardly of the wheels of the base. In the installation position of the frame, roller bearings below the frame transfer the weight of a construction panel to the surface on which the carriage operates to enhance stability and facilitate rolling movement of the carriage. Independently operable elevators are provided on the frame for uniformly elevating the base and the frame and a construction panel secured to the frame while maintaining contact between the roller bearings and the operating surface. The elevators alternately are operable differentially for adjusting the angular orientation of the frame and construction panel secured to the frame. A laterally extendable strut on the base supports weight of the carriage when the carriage is in an overturned working position in which a construction panel secured to the frame rests on a side edge thereof.
REFERENCES:
patent: 1663571 (1928-03-01), Shedd
patent: 2185073 (1939-12-01), Chamberlain
patent: 2798232 (1957-07-01), Ericsson
patent: 2964327 (1960-12-01), Mohr
patent: 3138265 (1964-06-01), Hansen
patent: 3643935 (1972-02-01), Bell
patent: 3696560 (1972-10-01), Hallin
patent: 4978132 (1990-12-01), Wilson et al.
patent: 5431254 (1995-07-01), Kramer et al.
Echternacht Construction Corp.
Johnson Brian L.
Lerner Avraham
Schubert Roland H.
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