Erection scaffolding which is movable in an elevator shaft for t

Details Erection scaffolding which is movable in an elevator shaft for t Erection scaffolding which is movable in an elevator shaft for t

1992-02-28

1993-07-27

Dayoan, D. Glenn

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187 95, 52 30, B66B 900

Patent

active

052304043

ABSTRACT:
For assembling hoistway or elevator shaft equipment, there is moved in vertical direction within the hoistway, an erection scaffolding comprising a first working platform, a second working platform, a third working platform and a fourth working platform. The first working platform is arranged at the lower end and the second working platform at the upper end of a elevator car support frame serving for the reception of the elevator cabin following completion of the erection operations. The erection scaffolding continues above the elevator car support frame with the third working platform and ends with the fourth working platform. A suspension tube, a lower deflecting roller and an upper deflecting roller serve as a suspension system for the elevator car support frame. The lower deflecting roller is arranged at the upper end of the suspension tube and the upper deflecting roller is arranged at an elevator hoistway support. A cable, suspended at an, for instance, 3:1 mechanical advantage ratio of a hoist anchored at the elevator car support frame, interconnects these lower and upper deflecting rollers. The elevator hoistway support carries a velocity limiter and a hoist comprising a hoist or tackle drum which serves for the transport of materials. A hoist or tackle cable is directed to a working location by a cantilever crane arranged at the upper end of the suspension tube. The working platforms, which are accessible by way of ladders and trap doors, are secured by railings and hinged barriers.

REFERENCES:
patent: 3851736 (1974-12-01), Westlake et al.
patent: 4345671 (1982-08-01), Tosato et al.
patent: 5065843 (1991-11-01), Richards

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