Unlock instant, AI-driven research and patent intelligence for your innovation.

Cord tension adjusting device for elevator

A technology for rope tension and adjustment devices, which is applied to elevators, transportation and packaging, elevators, etc. in buildings, and can solve the problems of increasing the number of drive equipment components and being unable to reduce costs

Inactive Publication Date: 2009-09-16
MITSUBISHI ELECTRIC CORP
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in such a conventional tensioning device of an elevator, since the sheave is pressed against the driving rope, the size is increased, and the number of parts of the drive equipment for displacing the sheave increases.
so that the cost cannot be reduced

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Cord tension adjusting device for elevator
  • Cord tension adjusting device for elevator
  • Cord tension adjusting device for elevator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0014] figure 1 It is a block diagram showing the elevator according to Embodiment 1 of the present invention. In the drawing, a first upper return sheave 2 and a second upper return sheave 3 as sheaves are provided at an upper portion in the hoistway 1 at intervals in the horizontal direction. In the lower part of the hoistway 1, a driving device 4 and a lower reeling wheel 5 arranged at a distance from each other in the horizontal direction are provided.

[0015] The driving device 4 includes a driving device main body 6 and a driving sheave 7 rotated by the driving device main body 6 . The drive sheave 7 and the lower reverse sheave 5 are arranged at substantially the same height as each other. In addition, the drive sheave 7 and the first upper reverse sheave 2 are arranged on a common vertical line to form a pair of sheaves.

[0016] There are many ( figure 1 For the sake of simplicity, it is 1) main rope 8. In the hoistway 1 , a car 9 as a lifting body is suspended ...

Embodiment approach 2

[0033] Figure 4 It is a front view showing an elevator rope tension adjusting device according to Embodiment 2 of the present invention. in addition, Figure 5 is along Figure 4 Cross-sectional view of line V-V in . In the drawing, a rope tension adjusting device 31 for adjusting the tension of the main rope 8 is provided on the upper frame 12b (upper part of the car 9). The first connecting portion 8a is connected to the car 9 through a rope tension adjusting device 31 .

[0034] The upper frame 12b is a pair of horizontal frames arranged at intervals in the depth direction of the car 9 . The main rope 8 passes between said horizontal frames. In addition, a rope fixing portion 14 for connecting the second connecting portion 8b to the car 9 is provided on the lower frame 12a (the lower portion of the car 9 ).

[0035] A pair of support portions 32 are fixed to the lower surface (the surface on the car main body 11 side) of the upper frame 12b. The actuator 15 is support...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A pair of sheaves, i.e. a return wheel and a drive sheave, are provided at the upper and lower parts of an elevator shaft. A body capable of elevating / lowering in the elevator shaft is connected with one and the other end parts of a main rope wound on each sheave. The elevating / lowering body is provided with a rope tension adjuster for adjusting the tension of the main rope. The rope tension adjuster comprises a tension detector for detecting the tension of the main rope, and an actuator for displacing any one of the one end part or the other end part of the main rope from the elevating / lowering body according to information from the tension detector.

Description

technical field [0001] The invention relates to an elevator rope tension adjusting device, which is used for adjusting the tension of the main rope suspending the car in the hoistway. Background technique [0002] In existing elevators, in order to keep the tension of the driving ropes suspending the car constant, a tensioning device (rope tension adjusting device) having a sheave pressed against the driving ropes is provided at the bottom of the hoistway. One end of the driving rope is fixed to the upper part of the car, and the other end of the driving rope is fixed to the lower part of the car. There are 3 driven sheaves and 1 driving sheave arranged in the hoistway. The driving rope is wound around the three driven sheaves and the driving sheave from one end to the other. The sheave of the tensioner is pressed against a portion of the driving rope between the driven sheave and the driving sheave (refer to Patent Document 1). [0003] Patent Document 1: Japanese Patent...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B66B7/10
CPCB66B7/10B66B11/007
Inventor 仓冈尚生
Owner MITSUBISHI ELECTRIC CORP