Elevator drive belt

Details Elevator drive belt Elevator drive belt

2006-01-10

2006-01-10

Bidwell, James R. (Department: 3651)

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

C187S255000, C187S250000, C198S847000

Reexamination Certificate

active

06983826

ABSTRACT:
An elevator drive belt, while applying a friction force thereto, drives an elevator rope which links an elevator cage and a counterweight together. A rubber hardness of the belt ranges from about 50 to 90 degrees of JIS-A hardness so as to suppress creep slip due to a shearing strain while the elevator is in operation. Even if the elevator cage and the counterweight are reduced in weight and the friction force to be applied to the elevator rope decreases due to the weight reduction, a friction force onto the elevator rope from the elevator drive belt compensates and guarantees a drive force of the elevator.

REFERENCES:
patent: 4004467 (1977-01-01), Kenney
patent: 4504258 (1985-03-01), Tanaka et al.
patent: 5595284 (1997-01-01), Takahashi et al.
patent: 5685417 (1997-11-01), Hasegawa et al.
patent: 52-4814 (1977-02-01), None
patent: 2510732 (1996-06-01), None
patent: 2000-168930 (2000-06-01), None
patent: WO-02/064482 (2002-08-01), None

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