Elevator apparatus

A technology of elevators, drives, used in the direction of elevators, transport and packaging, elevators, etc. in buildings

Inactive Publication Date: 2005-12-07
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the conventional 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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0036] figure 1 It is a top view of the elevator device according to Embodiment 1 of the present invention, figure 2 yes figure 1 side view of the elevator mechanism. 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 .

[0037] 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 d...

Embodiment approach 2

[0062] Next, image 3 It is a plan view of the elevator device according to Embodiment 2 of the present invention, Figure 4 yes image 3 side view of the elevator mechanism. 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.

[0063] 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 seco...

Embodiment approach 3

[0069] Next, Figure 5 It is a plan view of the elevator apparatus 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 connection parts 5e, 5f are arranged in such a way that a straight line connecting the first rope connection part 5e and the second main rope connection part 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.

[0070] 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 ...

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PUM

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Abstract

An elevator apparatus wherein a first drive device having a first drive sheave and a second drive device having a second drive sheave are disposed at the upper part of a hoistway. A car and first and second balance weights are suspended by main rope bodies wound on the first and second drive sheaves in the hoistway. Also, the car and the first and second balance weights are lifted by the drive forces of the first and second drive devices in the hoistway.

Description

technical field [0001] 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 [0002] 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. [0003] In the conventional 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 realize the compactness of the overall installation space of the device, however, Still, there is still room for further compacting the installation space by more efficiently disposing the hoist, th...

Claims

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Application Information

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IPC IPC(8): B66B1/28B66B7/06B66B11/00
CPCB66B11/0045B66B9/00B66B11/008
Inventor 桥口直树
Owner MITSUBISHI ELECTRIC CORP
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