Lift installation

A technology for elevators and drives, used in elevators, transportation and packaging, elevators, etc. in buildings

Inactive Publication Date: 2007-09-26
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the existing elevator as described above, each hoist is miniaturized by using two hoisting machines, and the miniaturized hoisting machines are arranged in the upper part of the hoistway, so as to re

Method used

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Experimental program
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Effect test

Embodiment approach 1

[0039] Fig. 1 is a plan view of an elevator apparatus according to Embodiment 1 of the present invention, and Fig. 2 is a side view of the elevator apparatus of Fig. 1 . In the above figure, a pair of car guide rails 2 , a pair of first counterweight guide rails 3 , and a pair of second counterweight guide rails 4 are provided in the hoistway 1 .

[0040] The arrangement of the car guide rails 2 is such that, in the vertical projection plane, the straight line connecting the two car guide rails 2 extends parallel to the opening direction of the landing entrance. The configuration of the first counterweight guide rails 3 is that, in the vertical projection plane, the straight line connecting the two first counterweight guide rails 3 extends along the depth direction of the hoistway 1 . The configuration of the second counterweight guide rails 4 is that, in the vertical projection plane, the straight line connecting the two second counterweight guide rails 4 extends along the de...

Embodiment approach 2

[0065] Next, FIG. 3 is a plan view of an elevator apparatus according to Embodiment 2 of the present invention, and FIG. 4 is a side view of the elevator apparatus of FIG. 3 . In the above-mentioned figures, the first and second car suspension pulleys 22, 23 are arranged at the bottom of the car 5, and the first car suspension pulley 22 and the second car suspension pulley 23 are located at the bottom of the car 5. There are intervals in the width direction. The first and second car suspension pulleys 22, 23 are arranged such that their rotation axes are in a horizontal state and extend parallel to the depth direction of the hoistway 1. As shown in FIG.

[0066] The car 5 and the first and second counterweights 6 , 7 are suspended in the hoistway 1 by the main rope body 24 . The main rope body 24 has a plurality of (only one is shown in the figure) main ropes 25 . The main rope 25 has a first end connected to the first counterweight 6 and a second end connected to the second...

Embodiment approach 3

[0072] Next, Fig. 5 is a top view of an elevator device according to Embodiment 3 of the present invention. In this embodiment, the second counterweight 7 is disposed on the front side of the car guide rail 2 in the depth direction of the hoistway 1 . The first and second rope connecting portions 5e, 5f are arranged in such a way that a straight line connecting the first rope connecting portion 5e and the second rope connecting portion 5f passes through the center of gravity C of the car 5 in the vertical projection plane. That is, the car 5 is substantially suspended by the main rope body 15 at the position of the center of gravity.

[0073] With such an elevator device, the driving devices 9, 12 and the counterweights 6, 7, etc. can be more effectively arranged, making the overall arrangement space more compact. That is, the arrangement position of the first counterweight 6 and the arrangement position of the second counterweight 7 may be shifted from each other in the dept...

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PUM

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Abstract

The invention provides an elevator device, comprising a first driving device for a first driving wheel and a second driving device for a second driving wheel on the upper of elevator shaft. Main rope bodies winding on the first and the second driving wheels hang the elevator car, the first and the second counterweights in the elevator shaft. In addition, under driving forces of the first and the second driving devices, the elevator car, the first and the second counterweights lift in the elevator shaft.

Description

[0001] This application is a divisional application of an invention patent application whose application number is 200380101548.5 (international application number is PCT / JP2003 / 015733), the application date is December 9, 2003, and the invention name is "elevator device". technical field [0002] The present invention relates to an elevator apparatus in which a driving device for raising and lowering a car and a counterweight is arranged at the upper part of a hoistway. Background technique [0003] For example, Japanese Patent Application Laid-Open No. 7-117957 discloses a conventional elevator apparatus in which the first and second hoisting machines are arranged on the upper portion of the hoistway. Each hoist has drive wheels, and the car and the counterweight are suspended in the hoistway by main ropes wound around these drive wheels. [0004] In the conventional elevator as described above, each hoist is miniaturized by using two hoisting machines, and the miniaturize...

Claims

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Application Information

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IPC IPC(8): B66B9/00B66B11/04B66B7/06
Inventor 桥口直树
Owner MITSUBISHI ELECTRIC CORP
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