B - Operations – Transporting – 61 – B
Patent
B - Operations, Transporting
61
B
B61B 12/06 (2006.01) B61B 11/00 (2006.01) B61B 12/02 (2006.01)
Patent
CA 2637967
A device for guiding an aerial rope of a mechanical lift installation in which said rope, driven by a driving pulley set in motion by a drive motor, is equipped with roller sheaves (10b) for guiding the rope, mounted rotating on a support frame. Each guiding roller sheave (10b) comprises a sheave body delineating an annular groove at its periphery and a band with a high friction coefficient housed in the groove of the sheave body. The device comprises, associated with at least one (10b) of said sheaves (10b), automatic detection means (21) of a predefined wear threshold of the band of said associated sheave (10b), and means for automatic stopping of said drive motor when said threshold is detected. The automatic detection means (21) are formed by an electrically conducting element (21) electrically insulated with respect to the sheave assembly and connected to the latter by fixing means in a transverse position where the rope automatically comes into contact with said element when the band of the associated sheave (10b) reaches the predefined wear threshold.
Bonifat Laurent
Triolier Thierry
Pomagalski Sa.
Robic
LandOfFree
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