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Vibration damping device for elevator tail cable

A technology of vibration damping device and elevator tail cable, which is applied in the directions of transportation and packaging, non-rotational vibration suppression, elevator, etc., can solve the problems of cumbersome installation work and adjustment work, complicated device structure, etc.

Active Publication Date: 2017-01-04
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this moving cable device, in order to make the tension pulley for imparting tension go up and down along with the movement of the tail cable, it is necessary to erect a trough-shaped strip object in the lifting passage, and it is necessary to adopt a trough-shaped opening. The structure that forms a gap and fits the tension pulley in the gap makes the structure of the device complex, and there are disadvantages such as cumbersome installation work and adjustment work.

Method used

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  • Vibration damping device for elevator tail cable
  • Vibration damping device for elevator tail cable
  • Vibration damping device for elevator tail cable

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0029] Refer to the following figure 1 A vibration damping device for an elevator tail cable according to a first embodiment of the present invention will be described. figure 1 It is a schematic diagram showing the outline of the damping device for the tail cable of the elevator according to the first embodiment of the present invention, and is a side view showing the state when the elevator car is located on the lowest floor.

[0030] The elevator includes an elevator car 1 that ascends and descends in a hoistway 20 provided in a building, and a tail cable 2 spanned between the elevator car 1 and the wall surface of the hoistway 20 .

[0031] The elevator car 1 is suspended in the hoistway 20 by a main sling not shown, and a tail cable 2 is installed on its lower part. Control signals and electric power of the elevator car 1 are transmitted between the hoistway 20 and the elevator car 1 or between the control panel and the elevator car 1 through the tail cable 2 .

[0032]...

no. 2 example

[0046] Refer to the following Figure 4 A vibration damping device for an elevator tail cable according to a second embodiment of the present invention will be described. Figure 4 It is a schematic diagram showing the outline of the vibration damping device for the tail cable according to the second embodiment, and is a side view showing the state when the elevator car 1 is positioned lower than the lowest floor. exist Figure 4 in, with figure 1 The same reference numerals indicate figure 1 For the same structural elements, the repeated description of the above structural elements is omitted here.

[0047] In the state where the elevator car 1 is located at the lowest floor (refer to figure 1 ) further downwards, the vibration damping device configured to contact the equipment (equipment in the pit) or the wall surface of the elevator passage 20 configured to be configured such that the tension roller 3 or the mounting member 4 is arranged in the bottom pit (the bottom o...

no. 3 example

[0053] Refer to the following Figure 5 A vibration damping device for an elevator tail cable according to a third embodiment of the present invention will be described. Figure 5 It is a schematic diagram showing the outline of the vibration damping device of the tail cable according to the third embodiment, and is a side view showing the state when the elevator car 1 is located on the lowest floor. exist Figure 5 in, with image 3 The same reference numerals indicate image 3 For the same structural elements, the repeated description of the above structural elements is omitted here.

[0054] The shock absorbing device for the tail cable involved in this embodiment can be applied to a plurality of tail cables (in Figure 5 In the example provided in the elevator with two tail cables). like Figure 5 As shown, two tail cables 2, 30 are arranged between the lower part of the elevator car 1 and the wall surface of the hoistway 20. The tension roller 3 rotatably supported...

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PUM

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Abstract

The invention provides a vibration damping device for an elevator stern line, and shaking of the stern line can be suppressed by a simple structure even if an elevator car is positioned in the bottom layer. The vibration damping device for the elevator stern line is used for suppressing the shaking of the stern line which is erected between the wall surface of a lift way (20) and an elevator car (1) an displaces due to elevating and descending of an elevator car (1). One end side of the vibration damping device for the elevator stern line is connected to the lower portion of the elevator car (1), and the other end side of the vibration damping device for the elevator stern line is abutted against the stern line (2). The position, which is abutted against the stern line (2) of the other end side can displace as the stern line (2) displaces. When the elevator car (1) is at the lowest layer, the other end side is abutted against a bent portion (2R) forming in the lowest portion in a vertical direction of the stern line (2), thereby applying tension to the stern line (2).

Description

technical field [0001] The invention relates to a vibration damping device for an elevator tail cable, which is used for suppressing the shaking of the tail cable erected between a building and an elevator car. Background technique [0002] An elevator includes a tail cable (movement control cable) that connects an elevator car that moves up and down inside a hoistway provided in a building and a control panel of the elevator car. The tail cable is erected between the elevator car and the wall of the elevator passage, moves up and down with the movement of the elevator car, and transmits control signals and power to the elevator car. [0003] Since the tension acting on the elevator tail cable is small, and the elevator tail cable has no support points except two ends, the natural period of the tail cable vibration is long. Therefore, for example, when a building vibrates greatly due to a strong wind or an earthquake (especially a long-period earthquake with a long vibratio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/00F16F15/02
Inventor 酒井悠至坂井满平野薰关谷裕二
Owner HITACHI LTD