Gradual catch system for a bidirectional safety device

Details Gradual catch system for a bidirectional safety device Gradual catch system for a bidirectional safety device

2006-11-07

2006-11-07

Matecki, Kathy (Department: 3654)

Elevator, industrial lift truck, or stationary lift for vehicle

Having specific means contacting or on load support for...

Includes movable contact component on support for engaging...

C187S356000, C187S373000, C187S414000, C188S043000, C188S25000B, C188S382000

Reexamination Certificate

active

07131517

ABSTRACT:
A bi-directional safety mechanism used in an elevator safety device and which produces a gradual catch on a guide rail. The bi-directional safety device has a roller and two hinged rectangular frames, each having a friction element. One hinged rectangular frame is disposed above the roller and the other hinged rectangular frame is disposed below the roller with both hinged rectangular frames on the same side of the guide rail. In addition, a set of fixed brakes are disposed on the other side of the guide rail and opposite to the hinged rectangular frames, preventing this system from marking the guide rail during the braking process.

REFERENCES:
patent: 2716467 (1955-08-01), Callaway
patent: 4093042 (1978-06-01), Pradon
patent: 5224570 (1993-07-01), Fromberg
patent: 5950768 (1999-09-01), Gensike et al.
patent: 6758310 (2004-07-01), Muff et al.
patent: 2004/0149524 (2004-08-01), Mori et al.

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