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Elevator device

A technology of equipment and elevators, applied in elevators, transportation and packaging, etc., can solve problems such as reliability problems, stopper falling off, etc., and achieve the effect of stabilizing braking performance

Active Publication Date: 2015-05-20
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when this solution is adopted, the stopper may fall off from the guide rail due to the huge impact force generated when the brake clamping body enters the stopper. In view of the purpose of use of the safety device, this solution has disadvantages in terms of reliability. doubt

Method used

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Examples

Experimental program
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Embodiment Construction

[0039] Embodiments of the elevator equipment according to the present invention will be described below with reference to the drawings.

[0040] Such as figure 1 As shown, the elevator equipment of the present embodiment has a lifting body that lifts in the lifting passage 1, and the lifting body is, for example, an elevator car 2; a guide rail 3 that guides the elevator car 2 to lift; an emergency braking device 4, the emergency braking device 4 The brake device 4 is installed on the elevator car 2, and when necessary, the guide rail 3 is pressed by a strong pressure to generate friction; and the forced action device 6 is arranged in the pit 5 at the bottom of the elevator passage, It is used to perform forced braking on the descent of the elevator car 2.

[0041] The elevator car 2 is connected to a sling 7 driven by a hoist (not shown), and guide shoes 8 slidingly contacting the guide rail 3 are provided at four corners thereof.

[0042] The emergency braking device 4 is ...

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PUM

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Abstract

PROBLEM TO BE SOLVED: To provide an elevator device which can surely actuate an emergency stop device when needed. SOLUTION: The emergency stop device 4 is arranged on an ascending / descending body and a forced operation device 6 is arranged in a vertical projection plane of the emergency stop device 4. The forced operation device 6 is provided with braking pieces 61a, 61b which are in slide contact with a guide rail 3, and a retaining means 62 retaining the braking pieces 61a, 61b along the guide rail 3. When the emergency stop device 4 comes into contact with the forced operation device 6 along with abnormal descending of the ascending / descending body, emergency stop braking pieces 41a, 41b of the emergency stop device are allowed to slide on the guide rail 3 to brake the ascending / descending body.

Description

technical field [0001] The present invention relates to an elevator equipment having a safety device which decelerates and stops the lifting body when the moving speed of the lifting body moving under the guidance of a guide rail reaches a predetermined speed or higher. Background technique [0002] Generally speaking, an emergency braking device for the elevator is installed in the sling elevator. When the lifting body falls at an overspeed due to a fault, the emergency braking device will pass through the emergency braking device before the speed of the lifting body exceeds 1.4 times the rated speed. The speed governor clamps the speed governor rope and presses the brake piece on the guide rail, thereby braking the lifting body through friction. In addition, a buffer is provided at the bottom of the elevator passage, and when the elevator car is about to collide, the buffer stops the elevator car from moving up and down slowly before the elevator car collides. [0003] Wh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/18
Inventor 座间秀隆羽田诚秀平野薰
Owner HITACHI LTD