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Elevator apparatus

A technology of elevators and driving devices, which is applied to elevators, transportation and packaging, elevators, etc. in buildings, and can solve the problems that the elevator device cannot be reduced as a whole

Inactive Publication Date: 2009-08-19
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in such a conventional elevator apparatus, since the car and the counterweight are raised and lowered by a single traction machine, the traction machine becomes larger as the capacity of the elevator apparatus increases.
Therefore, the elevator device cannot be reduced as a whole

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0017] figure 1 It is a plan view showing the elevator apparatus according to Embodiment 1 of the present invention. in addition, figure 2 yes means figure 1 Front view of the elevator installation in . In the figure, a pair of car guide rails and a pair of counterweight guide rails (both not shown) are provided in the hoistway 1 . The car 2 is guided up and down in the hoistway 1 by the car guide rails, and the counterweight 3 is raised and lowered in the hoistway 1 by the guide rails of the counterweight. In this example, in the vertical projection plane of the hoistway 1 , the straight lines connecting the car guide rails and the straight lines connecting the counterweight guide rails are respectively parallel to the straight lines extending along the width direction of the hoistway 1 .

[0018] The car 2 has: a first side portion 2a and a second side portion 2b facing each other between the car guide rails; a front surface portion 2c provided with a car entrance 4; an...

Embodiment approach 2

[0044] image 3 It is a plan view showing the elevator apparatus according to Embodiment 2 of the present invention. in addition, Figure 4 yes means image 3 Front view of the elevator installation in . In the figure, the size of the car 2 in the width direction is smaller than the size of the car 2 in the depth direction. Furthermore, the first and second driving devices 12 and 13 are arranged at intervals from each other along the depth direction of the hoistway 1 . In addition, a portion of the first main rope 19 between the first driving sheave 15 and the first counterweight-side reversing sheave 32 is wound around the first deflection sheave 35 . A portion of the second main rope 20 between the second drive sheave 17 and the second counterweight-side return sheave 34 is wound around the second deflection sheave 36 . Other structures are the same as those in Embodiment 1.

[0045] Like this, even if the size of the car 2 in the depth direction is greater than the si...

Embodiment approach 3

[0049] Figure 5 It is a plan view showing the elevator apparatus according to Embodiment 3 of the present invention. and, Image 6 yes means Figure 5 Front view of the elevator installation in . In the figure, the size of the car 2 in the width direction is larger than the size of the car 2 in the depth direction. In addition, the counterweight 3 faces the second side surface 2 b within the vertical projection plane of the hoistway 1 . That is, when the hoistway 1 is projected vertically, the counterweight 3 is arranged on the side of the area of ​​the car 2 in the width direction of the car 2 . In addition, the first and second driving devices 12 and 13 are arranged to be shifted from each other in the width direction and depth direction of the hoistway 1 .

[0050] The second car side rope fixing portion 22 is disposed above the second car suspension sheave 28 . The third end portion 20 a of the second main rope 20 is connected to the second car side rope fixing port...

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Abstract

The present invention provides an elevator device in which a car and a counterweight are raised and lowered in a hoistway by the driving force of a first driving device and a second driving device. The first driving device and the second driving device are respectively arranged on the upper part of the hoistway, and make the rotation axes of the first driving sheave and the second driving sheave perpendicular to the horizontal plane. The car and the counterweight are suspended in the hoistway by a main rope body having a first main rope wound on a first drive sheave and a second main rope wound on a second drive sheave . The first main rope has a first end and a second end connected to an upper portion of the hoistway, and the second main rope has a third end and a fourth end connected to an upper portion of the hoistway. The car is provided with a first car suspension sheave and a second car suspension sheave respectively wound with a first main rope and a second main rope. A first pair of weight suspension wheels and a second pair of weight suspension wheels respectively wound with the first main rope and the second main rope are arranged on the counterweight.

Description

technical field [0001] The present invention relates to an elevator device in which a driving device for raising and lowering a car and a counterweight is arranged on the upper part of a hoistway. Background technique [0002] Conventionally, in order to shorten the height dimension of the hoistway, an elevator apparatus in which a traction machine is horizontally arranged on the upper portion of the hoistway has been proposed. The axis of rotation of the drive sheave of the traction machine is perpendicular to the horizontal plane. A main rope is wound horizontally around the drive sheave. Two deflection sheaves are provided on the upper part of the hoistway to turn the direction of the main rope from the horizontal direction to the vertical direction. The car and the counterweight are suspended in the hoistway by main ropes diverted by the diverting sheave (see Patent Document 1). [0003] Patent Document 1: Japanese Patent Laid-Open No. 2000-255933 [0004] However, i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B7/06
CPCB66B11/0045B66B11/008
Inventor 池田史郎安藤英司
Owner MITSUBISHI ELECTRIC CORP
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