Static structures (e.g. – buildings) – With stadium or auditorium feature – Movable stage
Patent
1990-02-06
1991-05-28
Scherbel, David A.
Static structures (e.g., buildings)
With stadium or auditorium feature
Movable stage
52 64, 182223, E04H 326
Patent
active
050183222
ABSTRACT:
The fundamental construction of an electrically-operated folding stage system which embodies the invention in the most preferred form comprises (A) a stage body with (i) a platform, (ii) plural rows of legs with upper ends connected to a bottom of the platform, each row of the legs including a foremost leg and other legs having greater lengths than the foremost leg, and (iii) means for pivotally connecting the upper end of the foremost leg to the bottom of the platform, (B) wheels connected to bottoms of the foremost legs to facilitate movements of the stage body on a floor, (C) geared motors having output shafts, fixed to the bottom of the platform, and each capable of being rotated in either of opposed directions to move the stage body between a horizontal position on the floor and a vertical position immediately adjacent to a wall, (D) swing arms each having one end fixed to the output shaft of one of the geared motors, and (E) support means each provided in conjunction with one of the swing arms and located on a given position predetermined in relation to a lower portion of the wall for pivotally supporting an opposed end of the swing arm. The swing arm may comprise a pair of integrally formed tubes and a pair of rods slidably disposed in the respective tubes.
REFERENCES:
patent: 2978754 (1961-04-01), Wilson
patent: 3086256 (1963-04-01), Schieber, Jr.
patent: 3091816 (1963-06-01), Wetzel
patent: 4412403 (1983-11-01), LeFranc et al.
patent: 4872295 (1989-10-01), Fujita
patent: 4885878 (1989-12-01), Wuu
Mai Lan
Philpitt Fred
Scherbel David A.
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