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Elevator device

A technology for elevators and detection devices, applied in the directions of transportation and packaging, elevators, etc., can solve the problems of contact between the counterweight and the inserted tool, etc.

Active Publication Date: 2021-10-26
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, during maintenance of the buffer, etc., the operator may slip through the protective net and accidentally insert tools, etc., under the balance weight, and there is a possibility that the balance weight may come into contact with the inserted tools, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Below, refer to figure 1 and figure 2 An elevator apparatus 100 according to an embodiment of the present invention will be described. figure 1 It is a figure showing the schematic structure of the elevator apparatus 100 which concerns on Embodiment 1 of this invention, and is a cross-sectional view which shows a vertical cross section. figure 2 It is a figure showing the schematic structure of the elevator apparatus 100 which concerns on Embodiment 1 of this invention, and is a cross-sectional view which shows a horizontal cross section.

[0034] An elevator apparatus 100 according to an embodiment of the present invention is formed in a hoistway 1 formed in a building, and includes: a car 2 that moves up and down in the hoistway 1; direction; the main cable 5, which suspends the car 2 and the counterweight 3; the top pulley 6, which is arranged on the upper part of the lifting passage 1, and is wound with the main rope 5; the hoist 7, which is arranged on the top ...

Embodiment 2

[0066] Next, refer to Figure 8 and Figure 9 , another embodiment (embodiment 2) of the protective net 11 of the present invention will be described. Figure 8 It is a front view of the protective net 11 of Example 2 of this invention. Figure 9 yes Figure 8 The side view of is a figure showing the fixing structure of the protective net 11.

[0067] When the moving distance of the car 2 and the counterweight 3 in the lifting direction is long, the length of the main rope 5 connecting the car 2 and the counterweight 3 from the hoist 7 to the car 2 varies depending on the position of the car 2 . In this case, due to the weight of the main cable 5 itself, the difference between the weight of the main cable 5 on the car 2 side of the hoist 7 and the weight on the counterweight 3 side increases. In order to reduce this difference in weight, a compensating member 16 is provided.

[0068] In Embodiment 2, the point of change compared with Embodiment 1 is that, in order to corr...

Embodiment 3

[0072] Next, refer to Figure 10 and Figure 11 , another embodiment (Embodiment 3) of the protective net 11 of the present invention will be described. Figure 10 It is the front view of the protective net of Example 3 of this invention. Figure 11 yes Figure 10 The side view of is a diagram showing the fixing structure of the protective net.

[0073] Conventionally, the minimum height from the pit 1a to the upper end of the protective net 11 was sometimes prescribed. In Example 3, the point of change when compared with Example 1 is that the additional guard net 18 is added and the height of the guard net 11 is raised. The other configurations are basically the same as those of Example 1, and also in Example 2, the same effects as those of Example 1 can be obtained. It should be noted that Embodiment 3 may also be applicable to the structure of Embodiment 2.

[0074] The protective net 11 is fixed to the additional protective net 18 by, for example, an additional prote...

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PUM

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Abstract

The purpose of the present invention is to provide an elevator device capable of further improving the safety during maintenance and repair of a buffer and the like disposed directly below a counterweight. An elevator device is provided with: a car and a counterweight (3) which are connected to each other by a main cable in a hoistway and which are lifted in opposite directions in the hoistway; and a buffer (12) disposed below the counterweight (3) in a pit (1a) formed in the bottom of the hoistway. In addition, the elevator device is provided with a protective net (11) fixed on a protective net fixing part (pit base) (8) fixed in the pit (1a). The lower end part of the protective net (11) is placed on the protective net fixing part (8).

Description

technical field [0001] The present invention relates to an elevator apparatus having a protective net that prevents an operator from entering a descending area of ​​a counterweight. Background technique [0002] The elevator apparatus described in Unexamined-Japanese-Patent No. 2013-95571 (patent document 1) is known as background art which belongs to the technical field of this invention. The elevator device of Patent Document 1 has: the pit that is arranged at the bottom of the hoistway, and the foldable overhaul workbench that expands when the equipment in the hoistway is maintained and overhauled, and the protective net that prevents the operator from entering the descending area of ​​the counterweight (refer to Summary). [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese Patent Laid-Open No. 2013-95571 [0006] In the elevator apparatus of Patent Document 1, there is a gap from the pit at the bottom of the hoistway to the lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/00
CPCB66B5/005
Inventor 深泽奏金山泰裕
Owner HITACHI LTD