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Elevator

A technology for elevators and cars, which is applied in the field of vibration-absorbing devices, and can solve problems such as increased structure and inability to accommodate

Active Publication Date: 2005-02-02
HITACHI LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a problem that a vibration, that is, a longitudinal vibration in the low frequency band (near 3 Hz), has recently occurred in this type of elevator.
[0004] In the above-mentioned prior art, if the characteristic vibration frequency is adjusted to a low frequency, there will be a problem that the structure will be enlarged and cannot be accommodated within the overall dimensions of the car frame

Method used

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Examples

Experimental program
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Embodiment Construction

[0011] Embodiments of the present invention will be described below with reference to the drawings.

[0012] figure 1 It is a front view of a car frame part with an elevator vibration absorbing device according to one embodiment of the present invention. figure 2 yes figure 1 side view. image 3 yes figure 2 An enlarged view of the dynamic damper section of .

[0013] In the figure, 1 is the lifting channel of a high-rise building. Each guide rail 2 is vertically arranged on the two side walls of the lifting channel 1. Between the two guide rails 2, there is a lifter that passes through the lower pulley 4 of the car and is lifted freely. The cable 3 lifts the car frame 6 and the car 5 installed in the car frame 6 . In addition, each bracket 7 is attached to the upper and lower corners of the car frame body 6 (the lower part is not shown), and each guide device 8 is arranged in each bracket 7, which is arranged to be connected with each guide rail 2. The two sides and t...

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PUM

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Abstract

The invention provides a compact vibration absorption device for an elevator effectively dampening vertical vibration of low frequency and being stored in an outside dimension of a car frame. The elevator comprises a car frame 6 vertically moving in a hoistway 1; a car 5 provided in the car frame 6; a guide rail 2 for guiding the vertical movement of the car frame 6 and provided so as to be vertically extended; and a hanging rope 3 for supporting and lifting the car frame 6 through a pulley 4 below the car provided at a lower part of the car frame 6. A vertically moving dynamic damper 10 is provided below the car frame 6.

Description

technical field [0001] The invention mainly relates to a vibration absorbing device of a cable elevator. Background technique [0002] Recently, there is a car frame that moves up and down in the hoistway, a car installed in the car frame, a guide rail that guides the up and down movement of the car frame and extends in the vertical direction, and a The car lower pulley at the bottom of the car frame, the elevator supporting the car frame and the sling that makes it go up and down have been widely used. However, there is a problem that a primary vibration, that is, a longitudinal vibration in a low frequency band (near 3 Hz), has recently occurred in this type of elevator. [0003] In order to solve this problem, a kind of disclosed scheme is to arrange a leaf spring under the noose of the suspension car, and balance weights are set on the left and right sides of the leaf spring (for example, Japanese Patent Laying-Open No. 57-33181 communique ( Line 6 to Line 11 in the lo...

Claims

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Application Information

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IPC IPC(8): B66B11/02B66B7/00B66B9/00
Inventor 岛田通利有贺正记宫田弘市伊豫田洋海
Owner HITACHI LTD
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