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Elevator apparatus

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

Inactive Publication Date: 2007-01-03
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, since the traction machine is arranged at the upper corner of the hoistway, if the diameter of the motor increases, the traction machine will interfere with the hoistway wall

Method used

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  • Elevator apparatus
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0016] figure 1 It is a front view showing the elevator apparatus according to Embodiment 1 of the present invention, figure 2 is along figure 1 Sectional view of the line II-II. In addition, in figure 1 In , for the sake of simplicity, the lifting stroke is greatly shortened for representation, but the actual lifting stroke is much longer than the height of the car.

[0017] In the figure, a car 2 , a first counterweight 3 and a second counterweight 4 are arranged in a hoistway 1 . The car 2, the first counterweight 3 and the second counterweight 4 move up and down in the hoistway 1. In addition, a car guide rail (not shown), a first counterweight guide rail (not shown) and a second Heavy rails (not shown).

[0018] The car 2 includes: a front surface 2a provided with a car entrance; a back surface 2b opposite to the front surface 2a; a first side surface 2c; and a second side surface 2d opposite to the first side surface 2c. The first counterweight 3 is arranged such...

Embodiment approach 2

[0033] under, image 3 is a front view showing an elevator apparatus according to Embodiment 2 of the present invention, Figure 4 yes means image 3 A top view of the elevator installation in . In this example, the drive device 6 and the steering wheel set 14 are arranged in the upper part of the hoistway 1 . Specifically, when the car 2 stops at the uppermost floor, the driving device 6 and the steering wheels 15 to 18 are disposed between the car 2 and the ceiling 1a of the hoistway 1, that is, the elevator device in this example is a machine-room-less elevator.

[0034] The driving device 6 is arranged such that the driving sheave 8 is located above the driving device main body 7 . In addition, the driving device 6 is arranged at the same height as the steering wheels 15 to 18 . In addition, the driving device 6 is arranged near the center of the hoistway 1 on the vertical projection plane.

[0035] The car 2 is provided with first and second rope connection parts 2e an...

Embodiment approach 3

[0040] under, Figure 5 It is a plan view showing the elevator apparatus according to Embodiment 3 of the present invention. In this example, the second counterweight 4 is arranged at a position closer to the rear surface 2 b than the front surface 2 a on the vertical projection plane. That is, on the vertical projection plane, the first counterweight and the second counterweight 3 , 4 are arranged at the same position in the depth direction of the car 2 .

[0041] Thus, the winding range R1 of the first main rope 11 around the driving sheave 8 and the winding range R2 of the second main rope 12 around the driving sheave 8 are not point-symmetrical to each other with respect to the rotation axis of the driving sheave 8 . However, only a part of the winding range R1 and the winding range R2 overlap in the circumferential direction of the driving sheave 8 (overlapping range R3). The overlapping range R3 is less than 1 / 4 of the winding range R1 or the winding range R2. Other s...

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PUM

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Abstract

In an elevator apparatus, a main rope group has a first main rope for suspending an elevator car and a first counterweight and a second main rope for suspending the elevator car and the counterweight. A deflection pulley group includes a first elevator car side deflection pulley for guiding the first main rope from a drive sheave to the elevator car, a first counterweight side deflection pulley for guiding the first main rope from the drive sheave to the first counterweight, a second elevator car side deflection pulley for guiding the second main rope from the drive sheave to the elevator car, and a second counterweight side deflection pulley for guiding the second main rope from the drive sheave to the second counterweight. The positions at which the elevator car is suspended by the first and the second main rope are separated from each other in a vertical projection plane.

Description

technical field [0001] The present invention relates to a traction elevator device, which suspends the car and the counterweight by the main rope set wound on the driving sheave of the driving device. Background technique [0002] In a conventional elevator apparatus, a hoisting machine using a thin motor as a driving source is arranged at an upper portion in a hoistway. In addition, the traction machine is arranged such that the rotation axis of the drive sheave is vertical. In addition, in order to prevent the main rope from increasing at an angle of entry into the drive sheave, the hoisting machine is arranged at a corner of the upper portion of the hoistway (for example, refer to Patent Document 1). [0003] Patent Document 1: Japanese Patent Laid-Open No. 2001-48450 [0004] In the above-mentioned conventional elevator apparatus, in order to reduce the number of permanent magnets used in the hoisting machine, it is necessary to use fewer magnets to generate the requir...

Claims

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Application Information

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IPC IPC(8): B66B7/06
CPCB66B11/0045B66B7/06B66B11/008
Inventor 安藤英司
Owner MITSUBISHI ELECTRIC CORP