Arrester device for elevators

Details Arrester device for elevators Arrester device for elevators

1987-05-04

1989-04-11

Rolla, Joseph J.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187 83, 188 43, B66B 516

Patent

active

048197653

ABSTRACT:
An arrester device, e.g. for an elevator cage or counterweight, has a wedge housing, an active wedge acting on one side of an elevator guide and activated by a separate transmission member, such as a rope, and a counterwedge acting on the elevator guide from the opposite side. The movements of the wedge and the counter wedge are directed to pass along inclined guide surfaces, the distance between the top margins of the guide surfaces being equal to or larger than the distance between their lower margins. The angle of inclination of the guide surfaces equals the wedge angles of the wedge and the counterwedge, respectively. Furthermore, the wedge housing comprises a force member, such as a spring, which exerts on the counterwedge a force substantially parallel to the respective guide surface.

REFERENCES:
patent: 3509970 (1970-05-01), Gabler
patent: 3727727 (1973-04-01), Hauth
patent: 3869024 (1975-03-01), Hauth et al.
patent: 4240529 (1980-12-01), Hagmann et al.

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