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Elevator

A technology for elevators and elevator cars, which is used in elevators, transportation and packaging, elevators and other directions in buildings. It can solve problems such as inability to use without brakes and achieve the effect of ensuring safety.

Inactive Publication Date: 2009-12-16
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the above-mentioned elevator apparatus in which the suspension rope and the driving rope are simply installed separately, there is no brake for the hoisting machine when the driving rope is cut or the driving rope is wound. Take adequate consideration of countermeasures in case of unavailability, etc.

Method used

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Examples

Experimental program
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Embodiment Construction

[0018] Embodiments of the present invention will be described below with reference to the drawings.

[0019] figure 1 It is a top sectional view of the hoistway 1 of the elevator apparatus according to the first embodiment of the present invention. In the elevator apparatus of this embodiment, the elevator car 2 is raised and lowered along the elevator car guide rails 3a, 3b, and the counterweight 9 is raised and lowered along the counterweight guide rails 10a, 10b.

[0020] Further, an elevator car upper frame 4 is provided on the upper portion of the elevator car 2, and one end of a first rope (hereinafter referred to as "suspension rope") 5 is connected to the elevator car upper frame 4. The other end of the suspension rope 5 extends upward from the upper frame 4 of the elevator car and is wound on a pulley (hereinafter referred to as "first pulley") 7 for suspension on the side of the elevator car, and its reversing direction is converted into a horizontal pulley. After ...

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PUM

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Abstract

An elevator installation in which an elevator car (2) and a counterweight (9) move along guide rails in a hoistway (1), the elevator installation having a a first sling (5) of weight (9), a second sling (16) connecting said elevator car (2) and counterweight (9) and arranged independently of said first sling (5), A hoist (15) for winding and driving the second cable (16) and a braking device (17) for braking said first cable (5). In this elevator device, safety can be ensured even when the driving rope is cut or the brake of the hoisting machine cannot be used.

Description

technical field [0001] The invention relates to an elevator installation in which an elevator car and a counterweight move along guide rails in a hoistway. Background technique [0002] As a prior art, an elevator apparatus has been disclosed in which a sling for suspending an elevator car and a counterweight and a sling for imparting a driving force are respectively provided. For example, reference 1 and the like disclose a technique in which suspension cables and drive cables are provided separately to reduce the tension of the drive cables. In addition, as shown in Reference Document 1 and the like, since the diameter of the drive cable is reduced, it is possible to reduce the size of the drive mechanism as a result. [0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-63057 [0004] However, in the above-mentioned elevator apparatus in which the suspension rope and the driving rope are simply installed separately, there is no brake for the hoisti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B9/00B66B7/06B66B11/04B66B17/12
Inventor 萩谷知文荒堀升藤野笃哉
Owner HITACHI LTD