KR970004448Y1 - Control device for opening and closing apparatus of auto-door - Google Patents

Abstract

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Description

Automatic Door Opening and Closing Device

1 is a perspective view showing a state in which a door opening and closing control device of a general garage is mounted in a garage

2 is a partially cutaway plan view of the main body of the door opening and closing control device of the garage of FIG.

3 is a circuit diagram of an automatic door opening and closing control device using a tape switch of the present invention

4 is a waveform diagram of the steady state of the present invention

5 is a waveform diagram when detecting the obstacle of the present invention

6 is a waveform diagram when the sensor failure of the present invention

* Explanation of symbols for main parts of the drawings

101: oscillation circuit section 102: tape switch section

103: rectification and smoothing unit 104: comparison unit

105: micom

The present invention relates to an automatic door opening and closing control device, and in particular, by attaching a tape switch to the end of the roll door and using it as an obstacle detecting sensor for detecting an obstacle when the door moves, In addition, the present invention relates to an automatic door opening / closing control device using a tape switch that detects a problem in connection of an obstacle detecting sensor and controls the same as when detecting an obstacle.

In general automatic door opening and closing control devices, the control contents of the door are stored in advance as a program including a command code in the storage device, and the optimum door is selected from the operation command of the door, the detection signal of the door state while moving and the program state being executed. The door drive device is controlled to logically determine and select the control state.

However, when such a control system itself fails or a detector which detects the state of a moving door fails, the door drive cannot be properly controlled, and as a result, the door drive must be stopped. In spite of this, there is a case that driving power is continuously supplied to the driving device, causing a serious accident.

Referring to the conventional automatic door opening and closing control device with reference to the accompanying drawings as follows.

FIG. 1 is a view illustrating a state in which a door opening and closing control device of a general garage is mounted in a garage. As shown in FIG. 1, a door 1 having a drive device and a rail connected to the body 1 are shown. 2), a roller chain 3 guided by the rail 2 and operated by a driving force of the main body 1, and a trolley 4 engaged with the roller chain 3 and moving horizontally along the rail. The main part is the back.

The main body 1 is suspended from the ceiling of the garage by a bracket, while the end of the rail 2 is fixed to a part of the garage by a header bracket 5.

On the other hand, the door 6 of the garage is generally divided into purchases, and is connected to each other and opened and closed along the door rails 7 installed on both sides.

In addition, the weight of the door 6 of the garage is balanced by the door balance spring 3, and is set in a state in which the door 6 can be opened and closed by an attractive force.

The door bracket 9 is fixed to the door 6 of the garage in the above state, and the arm 10 is pivotally connected between the door bracket 9 and the trolley 4 again.

In this way, the door 6 of the garage is interlocked with a roller chain 3 operating by the driving force of the main body 1 and a trolley 4 horizontally moving along the rail 2 by the operation of the roller chain 3. Is opened and closed along the door rail 7.

The power supply to the main body 1 is supplied via the power cable 11. When the operation instruction is given to the main body 1, the pushbutton switch 12 mounted on the wall of the garage is pushed, or a signal by a radio wave or the like is received by a signal received by the control device 13 with a built-in receiver. All.

If the door opening / closing device of the garage cannot be operated due to a power failure, the roller chain 3 and the trolley 4 are disconnected by the release string 14, and the door of the garage 6 ) Can be opened and closed independently.

The rotational force of the motor 16 fixed to the lower side of the main frame 15 is rotated by the V-belt 18 from the motor pulley 7 fixed to the motor side 16a by the V-belt 18. Silver is transmitted to the sprocket 21 by the sparrow side 20.

The roller chain 3 meshes with this sprocket 21.

The roller portion of the roller chain 3 is guided by the chain guide 22, the chain guide 23, and the chain guide 24 from both sides in the main body frame 1.

The rail 2 is fixed to the frame 15 so that there are no cracks, steps or gaps formed by the chain guides (A) 22 and the chain guides (C) 24 by the fixing brackets 25. do. Both sides of the roller portion of the roller chain 3 are guided by the rail 2.

Meanwhile, the roller chain 3 wound by the sprocket 21 is a chain storage case fixed without a step and a gap formed by the chain guide (A) 22 and the chain guide (B) 23 ( 27 is performed by the spiral winding-shaped chain receiving groove 27-a.

By the above configuration, the sprocket 21 is rotated by the rotation driving of the motor 16, and the roller chain 3 reciprocates along the rail 2.

Next, a limit mechanism for limiting the horizontal movement amount of the trolley 4 will be described. The upper and lower points of the opening and closing operation of the door 6 of the garage described in FIG.

The amount of movement of the roller chain 3 is converted into the amount of movement of a pulley rack 28 provided on the outer periphery of the large pulley 19 that rotates at the same rotational speed as the sprocket 21.

The pinion 29 engaged with the pulley rack 28 transfers the movement amount of the pulley rack 28 to the upper limit limit switch 30 and the lower limit limit switch 31.

An upper limit adjustment knob 32 and a lower limit adjustment knob 33 are provided on each of the upper limit limit switch 30 and the lower limit limit switch 31 so that the upper limit point and the lower limit point can be freely adjusted from the outside of the main body. To be.

If the garage door is hit by an obstacle while descending, it should be quickly detected and reverse-locked, ie, raised to promote safety, and when the garage door is touched by an obstacle while it is being raised, Should be detected and stopped.

In the automatic door opening and closing device, the obstacle detection mechanism is a part of the chain guide groove including the chain guide (A) 22, the chain guide (B) 23, and the chain guide (C) 24. It is formed in a line, and the obstacle chain opening 34 is moved by the roller chain 3, which is moved by the compression force applied when the door is lowered or the tension force applied when the door is raised.

The compression force of the disturbance spring 35, which restricts the movement of the obstacle detecting tool 34, is rotated so that the spring presser plate 37 can be moved and changed.

In addition, the obstacle detection switch 52, which is turned on and off (Ob, OFF) in accordance with the movement of the obstacle detection bracket 34, detects the obstacle so that the door is raised when descending and stops when the door is raised.

However, such a conventional automatic door opening and closing control device is installed in the main body 1 to raise and lower the separate detection bracket 34 by the elastic force of the obstacle spring 35 to operate by the compression force or the tension force of the roller chain (3). Therefore, when the elastic force of the obstacle spring (35) to elevate to the gum jeopgu 34 due to long-term use, the elastic force of the obstacle spring (35) had to be readjusted as well as the roller chain according to the tension change of the obstacle spring (35). (3) If the tension cannot be detected, the obstacle is not detected. Therefore, the door moves to the lock and the motor in the driving device is applied so that the rock torque is applied to the obstacle to avoid the obstacle. In addition, the state continues until the thermal protection device of the motor is operated, and in the worst case, the motor may be burned out, which may cause a fire accident. If the object is a human being, it may take his life. In addition, since the obstruction 34 is installed in the main body 1 to detect the obstacle indirectly, there is a problem that the reliability of the obstacle detection is lowered.

The present invention has been made to solve the above problems, by mounting a tape switch to the end of the roll door to directly detect the obstacle, and by detecting the failure of the obstacle detection sensor to control the same as when detecting the obstacle The purpose is to improve.

The present invention for achieving the above object is an oscillating circuit unit for oscillating a square wave signal, a tape switch unit for detecting the obstacle mounted on the end of the roll door to modify the square wave signal output from the oscillating circuit unit according to the roll door, and a tape Rectifying and smoothing the rectified and smoothed square wave signal outputted by the switch part, and outputting the comparator and smoothing part by comparing the output of the rectified and smoothed part with a reference value, and inputting the output signal of the comparator part to detect a steady state, obstacle detection, It consists of a microcomputer to judge obstacle detection organization.

This invention is described in more detail with reference to the accompanying drawings as follows.

3 is a circuit diagram of an automatic door opening and closing control device using a tape switch of the present invention, the configuration of which comprises an oscillating circuit portion 101 for generating a square wave signal, a tape switch (TS / W), a diode (D ₁ ) Mounted at the end of the door, the tape switch transmits the square wave signal of the oscillation circuit unit 101 as it is when detecting an obstacle, and filters the square wave signal by the diode D ₁ when it is normal, and outputs it irrespective of the square wave signal when it is missing. A portion 102, resistors R ₁ to R ₂ , capacitors C _{1 to} C ₂ , diodes D ₂ , and the like, rectify and smooth the power supply voltage 24V to provide a state of the tape switch 102. And rectifying and smoothing unit 103 for outputting at different level values, resistors R ₃ to R ₄ , comparator U ₁ , and the like, and comparing the output of the rectifying and smoothing unit 103 with reference values. Outputs the comparator 104 and the comparator 104 to output It is configured to include a microcomputer 105 to recognize the normal state obstacle detection state of the automatic door by comparing with the stored data and to control the opening and closing of the automatic door accordingly.

The operation of the automatic door opening and closing control apparatus using the tape switch of the present invention configured as described above will be described with reference to the waveform diagrams and FIGS. 4 to 6 according to the present invention.

First, as shown in FIG. 4 when the automatic door operates in the normal state.

That is, in FIG. 3, the voltage at point B is connected to the point A (see the point A waveform in FIG. 4), which is the output of the oscillator circuit 101, to the diode D ₁ , so that the waveform of the point A is low (L). In this case, the B-point is kept low (L), and charging starts in the capacitor C ₁ only when the waveform of the A-point is high (H).

However, during charging, the waveform of point A is inverted back to the low (L) state and has only a slight change in the almost low (L) state.

Therefore, the waveform of point B is the same as the waveform of point B in FIG.

The point B waveform is rectified and smoothed by the rectifying diode D ₂ and the smoothing capacitor C ₂ via the attenuation resistance R ₂ of the rectifying and smoothing part 103. The same level value is supplied to the input terminal (+) of the comparing unit 104.

Since the signal supplied to the input terminal (+) of the comparator (U ₁ ) is divided by the resistor (R ₃ ) and the resistor (R ₄ ) to maintain a voltage lower than the reference voltage connected to the comparator (the input terminal (-) of U). The output of the comparator U ₁ becomes a low signal, which is recognized by the microcomputer 106 to determine the normal state.

In addition, when the obstacle is detected as shown in FIG. That is, the oscillation to three degrees square wave, so the output of A same potential as that of the point B, the oscillation circuit 10 of the voltage in the waveform point degree claim 5 A by the charging and discharging of the capacitor (C ₁₎ and a point B It changes like a waveform.

By this waveform via a damping resistor (R ₂₎ a rectifier diode (D ₂₎ to the supply is a diode-rectified waveform over the (D ₂₎ is changed to the average voltage due to hyeonghwal capacitor (C ₂₎ of claim 5 degrees c point It becomes like a waveform, and this signal is supplied to the input terminal (+) of the comparator U ₁ and is higher than the reference value so that a high signal is output.

The microcomputer 105 recognizes this, determines that an obstacle is detected, and stops the driving motor.

On the other hand, in the state of obstacle detection sensor (tape switch) is the same as FIG.

That is, since the points A and B are disconnected in FIG. 3, the point B is not affected by the point A, so the point B waveform remains high (see the points A and B in FIG. 6).

The B point waveform is supplied to the input terminal (+) of the comparator U ₁ without a signal change through the attenuation resistor R ₂ , the rectifying diode D ₂ , and the smoothing capacitor C ₂ . The subsequent operation is the same as in the obstacle detection.

In this case, the output of the comparator maintains high (H) in low (L) obstacle detection state and high (H) in deficiency of obstacle detection sensor (tape switch) in normal state. Or, if a failure occurs, it is controlled in the same state as obstacle detection.

In the automatic door opening / closing control device using the tape switch of the present invention as described above, an automatic obstacle is detected directly at the end of the automatic door, and even when a sensor is broken, it is controlled in the same way as the obstacle detection, and thus, no separate sensing bracket is required and reliability is achieved. This has the effect of being improved.

Claims (1)

An oscillation circuit unit for oscillating the square wave signal, a switch unit mounted at the end of the automatic door and outputting a square wave oscillation signal in accordance with the presence or absence of obstacle detection, and rectifying and smoothing output at different levels according to the sensing state of the switch unit. The unit compares the voltage with a reference value and outputs a detection signal, and detects a normal state of a door, an obstacle detection state, and the like by using a detection signal output from the comparison unit as an input signal and automatically controls the opening and closing of the door. In the automatic door opening and closing device having a microcomputer, the switch part comprises a tape switch part that deforms a square wave of the oscillation circuit part and according to the sensing operation of the tape switch part in the same way as the obstacle detection state even when the tape switch part is connected or broken. Automatic door, characterized in that configured to automatically open and close the door Opening and closing control apparatus.