Safety device

Details Safety device Safety device

1993-03-09

1994-06-28

Chin-Shue, Alvin C.

Fire escape, ladder, or scaffold

Torso harness

Window washer type

182 5, 182192, 188 651, A62B 3504

Patent

active

053238737

ABSTRACT:
A safety device comprises a body delimiting a passage having a safety rope passed through it, a ring connected by a strap to a belt, a brake and a system for locking the device to the rope should the worker fall. The device comprises a transverse spindle on which a toothed wheel is a relatively tight fit to constitute said brake, a cam mounted on the spindle and having teeth to cooperate with the safety rope and a weight cooperating with a pawl held away from a toothed ring attached to the cam by a spring, the weight being mounted in such a way that if the toothed wheel rotates at a speed greater than a specific threshold it causes engagement of the pawl with the toothed ring so that the cam teeth lock the safety rope into the passage.

REFERENCES:
patent: 4371127 (1983-02-01), Shimogawa
patent: 4521000 (1985-06-01), Dodge, Jr.
patent: 4923037 (1990-05-01), Stephenson et al.
French Search Report and Annex.

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