Elevator drive belt
AssigneeNitta Corporation
InventorsAtsuhito Wake, Yoshihiro Konishi, Kazuyuki Yuasa, Atsuro Ueno
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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.
Claims41
An elevator drive belt for an elevator with an elevator rope linking an elevator cage and a counterweight together, comprising:
- a drive belt applying a friction force to the elevator rope and driving the rope, and having a hardness of rubber material of the belt being 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.
An elevator drive belt for an elevator with an elevator rope linking an elevator cage and a counterweight together, comprising:
- a first elevator drive belt;
- and
- a second elevator drive belt opposing the first elevator belt;
- and wherein the first elevator drive belt and the second elevator drive belt hold the elevator rope therebetween, apply a friction force to the elevator rope and drive the elevator rope, and have a hardness of rubber material of about 50 to 90 degrees of JIS-A hardness to suppress creep slip due to a shearing strain while the elevator is in operation.
Dependencies are inferred from the claim text.