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Rope, and elevator using the same

A cable and elevator technology, applied in the field of elevators using steel cables, can solve problems such as cable life and strength reduction

Inactive Publication Date: 2004-11-24
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] It is an object of the present invention to provide a safe and reliable cable by solving the problem of reduced cable life and strength when reducing the cable bending radius.

Method used

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  • Rope, and elevator using the same
  • Rope, and elevator using the same
  • Rope, and elevator using the same

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Embodiment Construction

[0033] Best Mode for Carrying Out the Invention

[0034] DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in detail below with reference to the accompanying drawings.

[0035] Steel cables, which are load-bearing components, are made by twisting steel wires together to form strands, and then twisting the strands together. Due to their flexibility, cables are widely used in many mechanisms including elevators by being coiled or clamped in pulleys. Cables made of steel are consumable components, so their longevity depends on increased reliability and safety. As mentioned above, in order to reduce the fatigue and wear caused by repeated bending when the cable moves on the pulley, repeated bending becomes a factor affecting the service life of the cable. According to different mechanical devices, the diameter D of the pulley can be compared with the diameter of the cable. The ratio between d (D / d) is set to a constant value or more (for an elevator, ...

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Abstract

An elevator in which the sheave diameter is reduced and the attendant lowering of the rope life and strength is suppressed to secure safety and reliability. To this end, a rope is used in which a plurality of element wires constituting the wire rope are each covered with resin material and the whole wire rope is covered with resin material, thereby reducing the wear due to slippage between the element wires and the wear due to contact with the sheave, which wear occurs when the rope is entrained around the sheave. When the elevator sheave diameter is reduced, a worried lowering of the rope life can be suppressed or the rope life can be improved. Thus, it is possible to achieve reduction of size and weight of equipment including motors and hoists, installation space saving for elevators, improved safety and reliability of the system by virtue of the increased rope life.

Description

technical field [0001] The present invention relates to a cable elevator, and more particularly, the present invention relates to an elevator using steel cables made of steel wires coated with a resin material, and the outer circumference of the steel cables is also coated with a resin material . Background technique [0002] The cable elevator includes a driving device provided with a motor, a speed reducer, a pulley and a deflection pulley, and also has an elevator car load applied to one end of the main rope wound on the pulley (hereinafter referred to as "cable ”) and apply a counterweight load to the other end of the cable to move the elevator car and counterweight up and down by friction between the cable and the pulleys. [0003] Cables are generally formed by twisting together multiple strands of steel, which in turn are made by twisting steel wires together. This steel cable satisfies the friction characteristics, wear resistance, fatigue resistance, etc. required...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B7/06B66B11/00D07B1/16
CPCD07B1/144D07B2501/2007B66B7/06D07B2201/2012D07B2201/2044B66B11/008D07B2205/50D07B2201/2092D07B1/162D07B1/148D07B2201/2087D07B2201/2088D07B2201/2091D07B2401/206D07B2401/207D07B2801/22
Inventor 加藤谦介寺本律吉富雄二稻叶博美长濑博中村一朗
Owner HITACHI LTD