Elevator brake

Details Elevator brake Elevator brake

1987-03-09

1989-02-21

Skaggs, H. Grant

Brakes

With condition indicator

Electrical

188 2A, 187 20, 187108, F16D 6600, B66B 700

Patent

active

048057410

ABSTRACT:
A torque-responsive brake, in particular for elevators, comprises two or more brakes arcs, brake shoes pivotally connected to the brake arcs and having attached brake linings and a brake actuating mechanism for pressing the brake linings against a drum. With prior art brakes, the starting of the elevator was not smooth enough or, alternatively, the types of apparatus by which smooth starting has been achieved were too complicated and expensive. By the present invention these drawbacks have been overcome in that, for pivotally attaching each brake shoe to its brake arc, a pivot shaft extends through the respective brake shoe and is connected to one end of a torque-responsive member, the opposite end of which is fixed to the respective brake arc.

REFERENCES:
patent: 3782185 (1974-01-01), Hassenauer et al.
patent: 4023655 (1977-03-01), Anzai et al.
patent: 4306637 (1981-12-01), Keiser et al.
patent: 4688660 (1987-08-01), Kaneko

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