Elevator safety apparatus

Details Elevator safety apparatus Elevator safety apparatus

1990-12-14

1992-03-17

Valenza, Joseph E.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187 80, 187 86, 188 43, B66B 522

Patent

active

050960202

ABSTRACT:
An elevator safety apparatus is disclosed which is designed to be mounted on an elevator car, which car moves along guide rails; said apparatus comprising a frame, an area for wedge housings formed in the frame, and wedges placed in the wedge housings on each side of a guide rail; the wedges gripping the guide rail when the safety apparatus is activated, the wedges being placed relative to each other such that the wider end of one wedge points upwards while the wider end of the second wedge points downwards. To allow safety apparatus action in both an upward and downward direction, the apparatus is provided with an activating mechanism connected to and moving both wedges, and an overspeed governor, or the equivalent, for controlling the activating mechanism.

REFERENCES:
patent: 171526 (1875-12-01), Milchsack
patent: 943523 (1909-12-01), Cunningham
patent: 4819765 (1989-04-01), Winkler et al.

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