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Elevator device

A technology of elevators and buffer devices, which is applied in transportation, packaging, elevators, etc., can solve the problems of limited height, length, difficulty in coping, increasing width and thickness, etc.

Inactive Publication Date: 2007-06-06
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned existing elevator device, no matter under the situation that the counterweight buffer device is installed on the counterweight, or under the situation that the counterweight buffer device is arranged on the bottom of the hoistway, the lifting range of the counterweight is from The range obtained by subtracting the total length of the counterweight buffer device from the total length of the hoistway, so the height of the counterweight is limited by the length of the counterweight buffer device
Especially in machine room-less elevators in which the driving device and other equipment are arranged in the upper part of the hoistway, the height of the counterweight is also limited by the equipment arranged in the upper part of the hoistway.
Therefore, for example, when the counterweight needs to be increased, such as when the decorative parts of the car are heavy, the width and thickness of the counterweight must be increased, so it is difficult to deal with

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0014] Fig. 1 is a side view showing an elevator apparatus (machine-room-less elevator) according to Embodiment 1 of the present invention. In the drawing, a driving device (tractor) 2 is provided on the upper part of the hoistway 1 . The driving device 2 includes: a driving device main body 3 having a motor and a brake; and a driving sheave 4 rotated by the driving device main body 3 . Furthermore, the driving device 2 is arranged such that the rotation axis of the driving sheave 4 is vertical or substantially vertical. In addition, as the driving device 2 , a thin traction machine whose axial dimension is smaller than the dimension perpendicular to the axial direction is used.

[0015] A plurality of (only one is shown in the figure) ropes 5 are wound around the driving sheave 4 . A car 6 serving as a lifting body is connected to the first end of the rope 5 . A counterweight 7 as a lifting body is connected to the second end of the rope 5 . The car 6 and the counterweigh...

Embodiment approach 2

[0029] Next, Fig. 3 is a front view showing the counterweight 7 of the elevator apparatus according to Embodiment 2 of the present invention. In the drawing, the counterweight buffer device 13 has a first counterweight buffer 21 and a second counterweight buffer 22 arranged in parallel to each other so as to perform buffering operations simultaneously. The first counterweight buffer 21 and the second counterweight buffer 22 are buffers having the same capacity and the same stroke length as each other. Furthermore, the first counterweight buffer 21 and the second counterweight buffer 22 are arranged symmetrically with respect to the center line in the width direction of the counterweight 7 .

[0030] In addition, each counterweight buffer 21 , 22 is provided such that a portion equal to or greater than its stroke length S protrudes downward from the lower end of the counterweight 7 , and the remaining portion is arranged within the range of the vertical dimension of the counter...

Embodiment approach 3

[0035] Next, FIG. 4 is a side view showing the car 6 of the elevator apparatus according to Embodiment 3 of the present invention, and FIG. 5 is a plan view showing the car 6 in FIG. 4 . In the figure, the car 6 has a car frame 23 and a car chamber 24 supported by the car frame 23 . The car frame 23 has a pair of vertical columns arranged on the left and right of the car chamber 24 .

[0036] A first buffer mounting base 25 and a second buffer mounting base 26 are fixed to vertical columns of the car frame 23 . A first car buffer 27 and a second car buffer 28 are installed on the first buffer mounting base 25 and the second buffer mounting base 26, respectively. The car buffer device 29 is composed of a first car buffer 27 and a second car buffer 28 .

[0037] The first car buffer 27 and the second car buffer 28 are arranged in parallel to each other so as to perform buffer operations simultaneously. Furthermore, the first car buffer 27 and the second car buffer 28 are buff...

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PUM

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Abstract

An elevator device has a damping device mounted on a lower part of the vertically moving body that is lifted and lowered in a hoistway, and the damping device damps an impact of a collision of the vertically moving body against a lower part of the hoistway. A part of the damping device is projected below from the lower end of the vertically moving body, and the part is greater in length than the length of a stroke of the damping device. The remaining portion of the damping body is placed within the range of the vertical dimension of the vertical moving body.

Description

technical field [0001] The present invention relates to an elevator device with a buffer device for alleviating the impact of the car, counterweight and other lifting bodies colliding with the lower part of the hoistway. Background technique [0002] In a conventional elevator apparatus, a car buffer device is provided below a hoistway, and a counterweight buffer device is attached below a counterweight (for example, refer to Patent Document 1). [0003] Patent Document 1: Japanese Utility Model Publication No. 59-192085 [0004] In the above-mentioned existing elevator device, no matter under the situation that the counterweight buffer device is installed on the counterweight, or under the situation that the counterweight buffer device is arranged on the bottom of the hoistway, the lifting range of the counterweight is from The range obtained by subtracting the total length of the counterweight buffer device from the total length of the hoistway, so the height dimension of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/28
CPCB66B5/284
Inventor 本田武信
Owner MITSUBISHI ELECTRIC CORP