Elevator door jamming detection switch

Abstract

The present invention relates to an elevator door jamming detection switch and, more particularly, to an elevator door jamming detection switch which has a switch body installed in a space between anelevator door and an elevator wall, thereby preventing a body part such as a finger from being pulled together with the elevator door into the space as the elevator door opens and thus preventing people from being injured, and facilitates installation, maintenance and repair by means of simpler constituent elements.

Description

technical field [0001] The present invention relates to an elevator gap detection switch, in particular, to an elevator gap detection switch, that is, a switch body is provided in the space between the elevator door and the elevator wall, thereby preventing fingers, etc. A part of the human body is sucked into the above-mentioned space along with the elevator door to prevent people from being injured, and the simpler structure makes assembly and maintenance easier. Background technique [0002] Generally, an elevator includes: an elevator car that moves passengers up and down along a vertically formed elevator path inside a building with passengers on board; a motor and a winding machine for generating predetermined power; and a control unit, which controls the above-mentioned motor and winding machine according to the button operation of passengers, so that the above-mentioned elevator car moves to the corresponding floor. [0003] And the elevator car that is arranged on ...

AI Technical Summary

Problems solved by technology

[0011] However, the above-mentioned Korean Patent No. 10-1238068 has the following problem, that is, although a conductive wave plate can be provided on the surface of the door to irradiate light to the surface of the door, ordinary elevators have a relatively large structure to allow people to pass through without obstacles. For wide doors, the light from the LEDs installed on one side of the door cannot sufficiently reach the opposite side, so the amount of light irradiated on the door surface is low, so visibility will decrease as the illuminance decreases

[0012] The structures for preventing hand pinching disclosed in the above-mentioned multiple patent documents have the following problems, that is, the structures are complicated and installed in elevators on a large scale. Therefore, the elevator installation costs increase and are not economical. It may interfere with the passage of elevator users after setting

[0013] Especially, be applicable to the anti-pinch device of elevator of known technology and utilize sensor to detect that finger is clamped between elevator and body of wall, for this reason, also need to have sensing part, control part, be used for the detection signal that takes place in above-mentioned sensor Additional structures such as inverters for conversion and transmission to the control unit increase the installation cost. In addition, the structure is more complicated, so if each structure breaks down, it will cost a lot to repair

Images