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

Device for detecting position of elevator car

A technology of elevator car position and elevator car, which is applied in the directions of elevators, transportation and packaging, elevators, etc. in buildings, which can solve the failure of optical transmitters or receivers, the inability to distinguish fault conditions from normal functional conditions, and the inability to detect Problems such as mechanical sliding of bearing cables

Inactive Publication Date: 2005-10-26
INVENTIO AG
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another disadvantage in terms of safety performance is that it cannot be identified if the optical transmitter or receiver fails, or the light is blocked by the coded tape.
It is therefore not possible to distinguish faulty conditions from functionally normal conditions
In addition, using this device is too laborious and also too expensive when evacuating the people in the elevator car
In addition there is no fixed mechanical connection between the belt and the elevator car, so mechanical slippage of the load-carrying rope against the drive pulley cannot be detected

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
  • Device for detecting position of elevator car
  • Device for detecting position of elevator car

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] In the general view of the elevator installation shown in FIG. 1 , an elevator car 4 is moved within the elevator shaft 1 by means of an electric drive device 2 connected to the drive pulley via support cables 3 . A speed governor 5 for monitoring the speed of the elevator car 4 is provided, the speed limiting cable 7 of which is connected to the elevator car 4 . The speed limiting cable 7 walks around the reversing roller 6 and the commutator 5. The positioning of the elevator car 4 in the evacuation situation, if necessary manually, should allow persons who may be locked in the elevator car to leave the car more or less comfortably. The precision with which the elevator car 4 stops at the floor plays only a minor role here. In order to achieve this, the detection of the position of the elevator car 4 can be realized when the elevator car 4 is manually driven. For this purpose, there is a device according to the invention for detecting the position of the elevator ca...

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 relates to a device which, for determining the position of the elevator car (4) during an evacuation, comprises a cable (3; 7) that is connected to the elevator car (4) and provided with marks (11). The inventive device also comprises a unit for detecting the marks (11).

Description

technical field [0001] The invention relates to a device for detecting the position of an elevator car. Background technique [0002] No. 4,433,756 discloses an elevator with an elevator shaft, in which a coded belt is arranged on the elevator shaft along the entire height of the shaft. The coding consists of holes arranged in two tracks on the tape. An optical transmitter and a photoelectric receiver are arranged on the elevator car running in the elevator shaft, so that the light emitted by the optical transmitter either reaches the photoelectric receiver through the hole in the belt, or is interrupted by the belt. When this elevator car method is used, a binary coded information about the position of the elevator car is generated. A disadvantage of this known device is that the detection of the position of the elevator car is inaccurate due to the height of the elevator car and the consequent length of the incrementally coded tape. A further disadvantage is the conside...

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): B66B5/02B66B13/24
CPCB66B5/027B66B13/24B66B1/3492
Inventor 迪特里希·韦格纳恩斯特·阿赫
Owner INVENTIO AG