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

Elevator device

A technology for elevator and car position detection, which is applied in the directions of transportation, packaging, elevators, etc., can solve problems such as error in the detection result of the car position, increase in the position of the car and the detection result, etc.

Inactive Publication Date: 2013-05-15
MITSUBISHI ELECTRIC CORP
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in this elevator device, for example, due to the change of the surface state of the guide rail, the existence of the joint of the guide rail, and the wear of the roller surface, the rollers slip slightly relative to the guide rail, resulting in an error in the detection result of the car position.
In addition, due to the accumulation of this error, the difference between the actual car position and the detection result gradually increases

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
  • Elevator device
  • Elevator device
  • Elevator device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0044] figure 1 It is a configuration diagram schematically showing the elevator apparatus according to Embodiment 1 of the present invention. In the drawing, a pair of car guide rails 2 is provided in a hoistway 1 . The car 3 is guided by the car guide rail 2 to move up and down in the hoistway 1 . A traction machine (not shown) for raising and lowering the car 3 and a counterweight (not shown) is arranged at an upper end portion of the hoistway 1 . The main rope 4 is wound around the driving sheave of the traction machine. The car 3 and the counterweight are suspended in the hoistway 1 by the main rope 4 . On the car 3, a pair of emergency stop devices 5 serving as braking means are mounted opposite to the car guide rails 2. As shown in FIG. Each emergency stop device 5 is arranged on the lower part of the car 3 . The car 3 is braked by the operation of each emergency stop device 5 .

[0045] In addition, a speed limiter 6 is arranged at the upper end of the hoistway 1...

Embodiment approach 2

[0058] Figure 4 It is a configuration diagram schematically showing an elevator apparatus according to Embodiment 2 of the present invention. In the figure, the car 3 has: a car main body 27 provided with a car entrance 26; and a car door 28 for opening and closing the car entrance 26. As shown in FIG. A car speed sensor 31 that is car speed detection means that detects the speed of the car 3 is provided in the hoistway 1 . An output unit 32 is installed in the control panel 13 , and the output unit 32 is electrically connected to the car speed sensor 31 . The battery 12 is connected to the output unit 32 via the power cable 14 . Electric power for detecting the speed of the car 3 is supplied from the output unit 32 to the car speed sensor 31 . A speed detection signal from the car speed sensor 31 is input to the output unit 32 .

[0059] A pair of emergency stop devices 33 , which are braking means for braking the car 3 , are installed on the lower part of the car 3 . T...

Embodiment approach 3

[0077] Figure 8 It is a configuration diagram schematically showing an elevator apparatus according to Embodiment 3 of the present invention. In the drawing, a door opening / closing sensor 58 is provided at the car entrance / exit 26, and the door opening / closing sensor 58 is door opening / closing detecting means for detecting the opening and closing state of the car door 28. As shown in FIG. The output unit 59 mounted on the control panel 13 is connected to the door opening / closing sensor 58 via a control cable. Furthermore, the car speed sensor 31 is electrically connected to the output unit 59 . A speed detection signal from the car speed sensor 31 and an opening / closing detection signal from the door opening / closing sensor 58 are input to the output unit 59 . By inputting a speed detection signal and an opening / closing detection signal to the output unit 59, the speed of the car 3 and the opening and closing state of the car doorway 26 can be grasped.

[0078] The output u...

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

The invention discloses an elevator device, which comprises a cage, a cage position detection part, a cage speed detection part, a rope breakage detection part, a storage part and an output part, wherein the storage part stores a cage speed abnormity judgement reference and a rope abnormity judgement reference; the rope abnormity judgement reference serves as a reference for judging whether a main rope is abnormal; the cage speed abnormity judgement reference corresponds to the position of the cage and is an abnormity judgement reference for the speed of the cage; the output part is electrically connected with the cage position detection part, the cage speed detection part and the rope breakage detection part; and the output part compares the cage speed abnormity judgement reference and the rope abnormity judgement reference which are obtained from the storage part with the speed of the cage and the state of the main rope which are calculated according to input of a detection signal, detects whether the speed of the cage and the state of the main rope are abnormal, and outputs a working signal to at least one of a brake device for a tractor and an emergency stopping device when the speed of the cage and the state of the main rope are determined to be abnormal.

Description

[0001] This application is a divisional application of the invention patent application whose application number is 200910168369.2, the application date is May 31, 2004, and the invention name is "elevator device". [0002] And the invention patent application whose application number is 200910168369.2 is the branch of the invention patent application whose application number is 200480030999.9 (international application number is PCT / JP2004 / 007857), the application date is May 31, 2004, and the invention name is "elevator device". case application. technical field [0003] The present invention relates to an elevator apparatus that obtains the position or speed of a car based on information from a sensor unit to control the operation of the car. Background technique [0004] For example, in the conventional elevator apparatus disclosed in Japanese Patent Laid-Open No. 6-271236, the position and speed of the car are obtained by detecting the rotation of rollers pressed agains...

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): B66B3/02
Inventor 冈本健一木川弘汤村敬松冈达雄
Owner MITSUBISHI ELECTRIC CORP