JPH0412234Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a stroke setting device used to set the door stroke of an automatic door.

[Prior art]

Conventionally, when setting the stroke of an automatic door, when a limit switch was used, the position of the limit switch was adjusted, and when a digital switch was used, the actual stroke was measured on a scale, and the value was set digitally using the digital switch. Ta.

[Problems to be solved by this idea]

In any of these cases, during the first operation after power is turned on, the door is moved at low speed in either the open or close direction, and the set stroke is confirmed.

At the time of this confirmation, if the set stroke is too large or too short and the desired door opening width cannot be obtained, it becomes necessary to reset the stroke.

Here, with a limit switch, it is troublesome and difficult to adjust the position of the limit switch, and with a digital setting device, the desired value is measured on a scale and re-entered into the digital setting device. Work is needed.

Therefore, the present invention improves the above-mentioned disadvantages when setting the stroke of an automatic door, and provides a stroke setting for an automatic door that allows the stroke to be set accurately and quickly while visually checking the actual door position. The purpose is to provide equipment.

[Structure of the idea]

The automatic door stroke setting device of the present invention includes a pulse encoder PE that is connected to the drive motor M of the automatic door 5 and generates pulses according to the rotation of the drive motor M, and a pulse encoder PE that generates pulses according to the rotation of the drive motor M. A counter 8 that inputs and counts and outputs the automatic door 5 position, and a variable resistor Vr that can arbitrarily set the stroke of the automatic door 5.
A/A that inputs the analog value stroke set by the variable resistor Vr and converts it to a digital value.
The D converter 10 compares and calculates the automatic door position outputted from the counter 8 and the set stroke outputted from the A/D converter 10 to determine the automatic door 5.
It is characterized in that it includes a control section 9 configured to control the drive motor M so that the position and set stroke match.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained below with reference to illustrated embodiments.

The attached drawing is an overall view of the embodiment and shows the motor M.
is connected to a drive pulley 2 via a speed reducer 1, and a door drive belt 4 is connected to the drive pulley 2 and driven pulley 3.
is wound around the belt 4, and a door 5 is connected to the belt 4 by a connector 6, and the door 5 is configured to be opened and closed by rotating a motor M in forward and reverse directions.

A pulse encoder PE is connected to the motor M, and this pulse encoder PE outputs a number of pulses corresponding to the number of rotations of the motor M to the counter 8.

Further, an origin switch RS that is turned on when the illustrated door 5 is in the closed position is installed at a predetermined position on the automatic door frame, and the output of this origin switch RS is also connected to the counter 8.

Here, the counter 8 is an up/down type counter whose count value is cleared by the ON signal of the origin switch RS, and a pulse encoder corresponding to the position of the door 5 which is opened/closed by the drive of the motor M.
A count value B representing the door position is output by up-counting or down-counting the pulse indicating the opening or closing direction from the PE. This count value B is output to the control section 9.

Further, a rotary or sliding type variable resistor Vr is provided for setting a desired door opening width stroke, and the partial pressure value by this variable resistor Vr is expressed by the A/D converter 10 to represent the desired setting stroke. It is input as a digital value A to the control section 9.

The control section 9 includes a test mode switch.
TS is connected and this switch TS is ON
Then, the control section 9 performs a comparison operation between the count value B representing the door position from the counter 8 and the digital value A representing the set stroke from the A/D converter 10.

If A>B in this comparison calculation, the control section 9 outputs an "open" signal to the motor drive circuit 7 and the door 5 is opened.
The motor M is driven in the direction of opening.

Further, in the case of A=B, the motor M is stopped to stop and hold the door 5 at that position. Furthermore, A
In the case of <B, a motor drive circuit "close" signal is output to drive the motor M in the direction of closing the door 5.

This comparison calculation operation is performed by a feedback system consisting of a control section 9, a motor drive circuit 7, a motor M, a pulse encoder PE, and a counter 8.
The setting change of the digital value A representing an arbitrarily set stroke is followed until A=B becomes stable.

When the test mode switch TS is turned off after setting the digital value A representing the stroke, the control section 9 functions as a numerical control section using the digital value A representing the finally set stroke as a reference value. The opening/closing movement of the door 5 is performed by turning on/off the switch MS.

In the above configuration, when setting the stroke, when the test mode switch TS is turned on, the door 5
moves toward the closing side at low speed, the origin switch RS is turned on, and counter 8 is cleared.

Here, the door 5 moves again at low speed to the stroke position set by the variable resistance Vr, and the opening width, which is the stroke of the door 5 at this time, is checked.

In this way, when it is desired to change the digital value A representing the stroke after visually confirming the actual opening width, the variable resistor Vr is adjusted. Comparison calculations are performed so that the count values B representing the positions match, and the door 5 is moved at low speed to a digital value representing a new stroke.

In this way, the actual stroke and the rotation angle or sliding amount of the variable resistance Vr are in a proportional relationship, and the door 5
Adjust the variable resistance while visually checking the stroke settings.
Do this intuitively depending on the rotation angle of Vr or the amount of slide.

[Effect of idea]

The automatic door stroke setting device according to the present invention is as described above, and can provide the following effects.

When setting the stroke of an automatic door, you can visually check the actual door position and set it intuitively by adjusting the sliding amount or rotation angle of the variable resistor, and compared to digital switches, the circuit configuration is simpler and the device is cheaper. realizable.

[Brief explanation of the drawing]

The drawing is an overall view showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Reduction gear, 2... Drive pulley, 3... Driven pulley, 4... Belt, 5... Door, 6... Connector, 7... Motor drive circuit, 8... Counter, 9
...Control circuit, 10...A/D converter, PE...
Pulse encoder, M...Motor, RS...Home switch, TS...Test mode switch, MS...Matsuto switch, Vr...Variable resistance.

Claims (1)

[Scope of utility model registration request] A pulse encoder PE that is connected to the drive motor M of the automatic door 5 and generates pulses according to the rotation of the drive motor M, and the pulse encoder
A counter 8 that inputs and counts the pulses output from the PE and outputs the automatic door 5 position, and a variable resistor that can arbitrarily set the stroke of the automatic door 5.
Vr, an A/D converter 10 that inputs the stroke of the analog value set by the variable resistor Vr and converts it into a digital value, and the automatic door position output from the counter 8 and the A/D converter A control unit 9 configured to compare and calculate the set stroke output from the automatic door 10 and control the drive motor M so that the position of the automatic door 5 matches the set stroke.
Automatic door stroke setting device.