SU1218050A1 - Apparatus for controlling closing of doors - Google Patents

Description

This invention relates to an automatic control of closing doors in transport conditions.

The aim of the invention is to increase the safety of passengers and reduce the time for closing the doors.

The drawing shows a diagram of a device for controlling the closing of doors.

The device has a drive 1 for closing doors 2 and a drive 3 for opening doors 2, a switch 4, an energy source 5, an operation mode switch 6, a time relay 7, a timer 8 and limit switches 9 and 10. The energy source 5 is connected to the input of the switch 4, the second output of which is connected to the first input of the actuator 3 for opening the doors. The first output of the switch 4 is connected via normally closed contacts of the relay 7 to the first input of the drive 1 for closing doors 2, through the normally open contacts of the time relay 7 to the input of the timer 8 and through the mode switch 6 to the time relay 7. The first output of timer 8 is connected via a limit switch 9 to the second input of input 1 for closing doors 2, and the second output of timer 8 through a limit switch 10 to the second input of drive 3 for opening doors.

The device works in the following way.

With the operation mode switch 6 turned off, the signal from switch 4 from the second output goes to the first input when

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water 4 to open the doors, and from the first exit to the first input of the drive 1 to close the drain. If the switch 6 of the operating mode is closed, the signal from the first output of the switch 4 is fed to the time relay 7 and through its normally closed contacts to the first input of the drive 1 for closing the doors 2. The time of the relay 7 is set to be no less than the time required for door closing. In the event that the doors 2 of item 11 are pinched, the limit switches 9 and 10 remain closed. In this case, after the time relay 7 triggers, through its normally open contacts, timer 8 is activated, from the outputs of which, through circuits closed by limit switches 9 and 10, signals from the second inputs of actuators 1 or 3 periodically flow to close the doors 2 or open until until obstacle 11 is removed. The contacts of the limit switches 9 and 10 will thus open. If actuators 1 and 4 are made in the form of electromagnets, their inputs can be separated, for example, by oppositely directed diodes, as shown in the drawing.

The proposed device, installed, for example, on electric train cars, makes it possible to safely pass into the car when the passenger is pinched by the door during closing. At the same time, all other doors of the cars will remain closed.

Claims (1)

DEVICE FOR MANAGING CLOSING DOORS, comprising actuators for closing and opening doors, a switch and an energy source connected to an input of the switch, and its second output with a first input of a drive for opening doors, characterized in that, in order to increase passenger safety and reduce time for closing doors, an operating mode switch, a time relay, a timer and two limit switches are introduced, while the first output of the switch is connected to the first input of the drive to close the doors through normally closed contacts of the time relay, with a timer - through normally open contacts of the time relay and with the time relay - through the mode switch; the first timer output is connected through one limit switch to the second input of the drive to close the doors, and the second timer output is connected through the second limit switch to the second input of the drive to open the doors. SU „„ 1218050>