Elevator and traction sheave of an elevator

Details Elevator and traction sheave of an elevator Elevator and traction sheave of an elevator

2003-09-22

2008-12-09

Langdon, Evan H (Department: 3654)

Elevator, industrial lift truck, or stationary lift for vehicle

Having specific load support drive-means or its control

Includes linking support cable in drive-means

C187S251000, C254S266000, C474S175000, C474S178000

Reexamination Certificate

active

07461721

ABSTRACT:
An elevator hoisting rope set (3) suspends a counterweight (2) and an elevator car (1). The elevator has one or more rope pulleys provided with rope grooves, one of said rope pulleys being a traction sheave (7) that moves the hoisting ropes (3). At least the traction sheave (7) has against the hoisting rope (3) a coating adhesively attached to it and increasing the coefficient of friction. At least the traction sheave (7) and the hoisting ropes (3) together form a material pair in which the hoisting ropes (3) bite into the traction sheave (7), maintaining a grip sufficient for the operation of the elevator even in an exceptional situation where the coating (102) increasing the coefficient of friction on the surface of the traction sheave (7) is lost.

REFERENCES:
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