JPH066849B2 - Opening and closing device for garage door - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an improvement of a garage door opening / closing device which is attached to a doorway of a garage.

BACKGROUND ART A conventional swing type garage door is mainly one in which a drive mechanism section and a control circuit section for controlling the drive mechanism section are separately arranged. In particular, the control circuit section is provided at a position away from the garage door. There were many things to be done. In such a conventional example, the drive mechanism section and the control circuit section are separately installed, which requires a lot of time and labor for the construction, and there is also a problem that wiring between them must be routed.

[Object of the Invention]

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to easily install an electric operation section including a drive mechanism section and a control circuit section, and to have a compact and good appearance. It is to provide a garage door opening and closing device that can be stored.

[Disclosure of Invention]

According to the present invention, the base of the arm 2 is rotatably mounted on the upper part of the column 1, the tip of the arm 2 is connected to the door body 3, and the door body 3 is closed with the door body 3 oriented vertically and the door body 3 is closed. In the garage door which is opened in a state in which the horizontal direction is directed upward, the drive mechanism section 7 for transmitting the rotation output of the motor 6 to one end of the rotation shaft of the column 1 to drive the rotation shaft, and the operation signal from the outside. And a control circuit section 12 for controlling the rotation of the motor 6 according to the states of the detection switches 8 and 9 for detecting the closing end and the opening end of the door body 3, respectively,
It is built in the drive box 15 attached to the outer side surface of the support column 1, and by configuring as described above,
This is to solve the problems of the conventional example.

That is, since the electric operation section is provided integrally with the support column 1, the construction is simple and the drive mechanism section 7 and the control circuit section 12 are built in the drive box 15, so that wiring is not laid around. It is compact and has a good appearance,
Moreover, the drive box 15 is attached to the outside of the support column 1,
The passage space between the columns 1 inside the column 1 does not become narrow.

Hereinafter, the present invention will be described in detail with reference to Examples.

The columns 1 are erected on the left and right sides of the entrance and exit of the garage. The arm 2 is composed of an upper arm 2a and a lower arm 2b, and the base ends of the upper arm 2a and the lower arm 2b are rotatably mounted on the upper part of the support column 1 together.
Is connected to the upper part of the door frame 13 of the door body 3, and the end of the lower arm 2b is connected to the vertical middle part of the door frame 13. A drive mechanism unit 7, a control circuit unit 12, a receiver 11, and a power source unit 14 for connecting the rotation output of the motor 6 to the rotating shaft 4 connected to the arm 2 via the clutch 24 are built in the outer surface of the column 1 on one side. Then, the drive box 15 in which the receiving antenna 16 is extended to the outside is attached. The drive box 15 is configured by combining an upper cover 15a and a lower cover 15b as shown in FIG.
5b is attached to the column 1 with a mounting screw 17, and the upper cover 15a is attached to the lower cover 15b with a mounting screw 17 'to the lower cover 15b.
Fixed against. The drive mechanism section 7 has a mounting frame 18
The motor 6, the transmission gear group 20 for transmitting the rotation from the gear attached to the output shaft of the motor 6 to the worm gear 19, and the worm wheel 21 that meshes with the worm gear 19.
The deceleration mechanism 5 and the AC solenoid 22 are attached. The AC solenoid 22 is a meshing pawl 24 slidably provided on the output shaft 5a of the speed reduction mechanism 5.
a and the engaging claw 24b fixed to the rotating shaft 4 on the support 1 side
Is for disengaging and engaging the clutch 24, which is composed of and, and drives the drive rod 25 in the direction of arrow a shown in FIG.
Is moved in the direction of arrow B to be engaged with and engaged with the engaging claw 24b to transmit the rotation output of the drive mechanism section 7 to the rotating shaft 4. When energized, the state shown in the figure is obtained by the force of the return spring. Of course, the engaging claw 24b rotates together with the output shaft 5a, and the connecting arm 23 does not rotate together. FIG. 6 shows the meshing state of the meshing claws 24a and 24b of the clutch 24, and the meshing claw 24a on the hatching side.
, There are some gaps in the meshing of both, and backlash is taken into consideration. Further, the garage door is configured to be stopped by a stopper (not shown) at a fixed position by a self-rotating force from 10 ° before the end of opening and closing. The drive frame 7 is fixed to the drive box 15 by fixing the attachment frame 18 to the support cover 26 attached to the upper portion of the support 1 with the attachment screw 17 ″ penetrating the lower cover 15b. The electric circuits such as the control circuit unit 12 and the power supply unit 14 are housed in a circuit box 27 fixed by mounting screws 17 ''', and the motor 6 and the AC solenoid 22 are connected to the connector 2
8 is connected via a signal line 1 and a power line L to a hand-operated switch SW and an AC power source AC, which will be described later and are attached to the upper cover 15b. Further, a pin (not shown) provided on the rotary shaft 4 is also connected via a signal line (not shown) to detection switches 8 and 9 which are limit switches to be described later and which are driven when rotated by a predetermined angle. .

FIG. 2 shows a basic circuit configuration diagram of the present invention, and FIG. 3 shows a specific circuit thereof. The transmitter 10 is a radio wave type transmitter, and when the operation switch SW ₀ is turned on, a predetermined format is obtained. It is designed to emit the signal. The receiver 11 receives and demodulates the transmitted signal and generates an output signal during the reception period. The control circuit unit 12 outputs the output of the receiver 11 and the rotary shaft 4
To control the drive of the motor 6 by determining the rotation direction of the motor 6 from the outputs of the detection switches 8 and 9 which detect the closing and opening of the door 3 by detecting the rotation angle of the AC solenoid 22. Circuit of the relay circuit 29
Reference numerals a and 29b are control outputs of the control circuit section 12 for the motor 6 and A.
This is a circuit for turning on and off the C solenoid 22. The safety circuit 30 detects the overload of the motor 6 and shuts off the power supply to the motor 6 to prevent the motor 6 from burning. The power supply unit 14 rectifies the AC power supply AC by the rectifier circuit 14A to supply power to the motor 6 composed of a DC motor, and also supplies the AC power AC to the rectifier circuit 14B.
It is for stepping down and rectifying the voltage and supplying power to the receiver 11, the control circuit unit 12, and the safety circuit 30.

Next, the operation of the present invention will be described based on the circuit of FIG. It is now assumed that the door body 3 is in the closed state, the detection switch 8 is off, and the detection switch 9 is on. When the transmitter 10 is operated here, the signal transmitted is received by the receiver 11, and the receiver 11 contacts the contact r _o of its built-in relay RY _0.
Turn on. Contact r _o is turned on and the resistor R _1, R _2, diodes D _1, 2 winding latching relays RY ₁ set coil SL, contacts r _o set coil SL circuit of the power supply flows 2 winding latching relays RY ₁ of To excite. The latching relay RY ₁ switches its contact r ₁ from a contact to b contact. Therefore, the series circuit of the resistor R ₂ , the diode D ₁ , the set coil SL and the contact point r ₀ is connected in parallel with the circuit of the diode D ₂ and the contact point r _{1 so} that no current flows through the set coil SL. When the contact r ₁ is switched to the contact b side, an exciting current flows through the relay RY ₂ via the transistor TR and the detection switch 9 to operate the relay RY ₂ , and its contacts r ₂₁ , r
₂₂ are connected from the normally closed side to the normally open side, and the AC solenoid 2
2 is turned on and the motor 6 is turned on. At this time, the motor 6 rotates in a direction in which a current flows through the circuit of the contact r ₂₁ , the motor 6, and the resistor R ₃ to drive the door body 3 to the opening side. AC
When the solenoid 22 is turned on, the clutch 24 connects the rotary shaft 4 and the output shaft 5a to rotate the rotary shaft 4. Therefore, the door body 3 is rotated around the column 1 so as to face the horizontal direction at the upper side to open the doorway of the carage. When the rotary shaft 4 rotates to a predetermined angle, the detection switch 9 is driven and turned off, cutting off the exciting current of the relay RY ₂ . Therefore, the energization of the motor 6 and the AC solenoid 22 are also cut off, the rotation of the motor 6 is stopped, and the clutch 2
4 will return to the original state. In this state, the detection switch 8 for detecting the blockage of the door body 3 is in the ON state. Next, when the transmitter 10 is operated again to transmit a signal, the receiver 11 operates in the same manner as described above to turn on the contact r ₀ of the relay RY ₀ . By this turning on, a current flows through the resistors R ₄ , R ₅ , the diode D ₃ , the reset coil RL of the two-winding latching relay RY ₁ and the circuit of the contact r ₀ , and the reset coil RL of the two-winding latching relay RY ₁ is turned on. Get excited. The latching relay RY ₁ switches its contact r ₁ from b contact to a contact. Therefore, the series circuit of the resistor R ₅ , the diode D ₃ , the reset coil RL and the contact point r ₀ is connected in parallel with the circuit of the diode D ₄ and the contact point r _{1 so} that no current flows through the reset coil RL. Now the contacts r ₁ is mode changes to a contact side, the transistor TR, through the detection switch 8, the relay RY ₃ operates in the exciting current flows through the relay RY ₃ of the relay circuit, the contacts r _31, r ₃₂ Each of them is connected from the normally closed side to the normally opened side to turn on the AC solenoid 22 and the motor 6. At this time, the motor 6 rotates in the direction in which the electric current flows in the direction opposite to the above-described rotation due to the circuit of the contact point r ₃₁ , the motor 6, and the resistor R ₃ to drive the door body 3 to the closing side. When the AC solenoid 22 is turned on, the rotating shaft 4 is rotated by the clutch 24 connecting the rotating shaft 4 and the output shaft 5a. Therefore, the door 3 is rotated around the column 1 so as to face the vertical direction, and the entrance / exit of the garage is closed. When the rotary shaft 4 rotates to a predetermined angle, the detection switch 8 is driven and turned off, cutting off the exciting current of the relay RY ₃ .
Therefore, the energization of the motor 6 and the AC solenoid 22 are also cut off, the rotation of the motor 6 is stopped, and the clutch 24 is returned to the original state.

By the way, when a certain load is applied such as when a child or the like is sandwiched when the door 3 is opened or closed, an excessive current flows through the motor 6. This current is detected by the current detection resistor R ₃ of the safety circuit, amplified by the amplifier 31, and then discriminated by the comparator 32. If the current is equal to or more than a certain value, an output is generated from the comparator to turn on the thyristor SCR. By this turning on, the base current of the transistor TR can be bypassed to turn off the transistor TR, cut off the energizing circuits of the relays RY ₂ and RY ₃ , and stop the rotation of the motor 6. Since the thyristor SCR self-holds, the return switch SW ₁ may be momentarily turned off when returning. Further, the hand operation switch SW is connected in parallel to the contact point r ₀ of the relay RY ₀ of the receiver 11 so that the door body 3 can be opened / closed similarly to the operation by the transmitter 10.

When the AC solenoid is not energized, the rotary shaft 4 and the output shaft 5a are disengaged from each other by the clutch, so that the door body 3 can be easily opened and closed manually even in the event of a power failure.
Further, in the above-mentioned embodiment, the signal is transmitted using the electric wave, but a wireless signal such as light or ultrasonic wave may be used.

[Effects of the Invention] According to the present invention, a drive mechanism unit that drives a rotary shaft by transmitting a rotary output of a motor to one end of a rotary shaft of a column, an operation signal from the outside, and a closing end and an opening end of a door body, respectively. The drive box attached to the outer surface of the support has a built-in electric operating part that consists of a control circuit that controls the rotation of the motor according to the state of the detection switch to be detected. Construction is easy because it is provided integrally,
Moreover, since the drive mechanism and the control circuit are built in the drive box, the wiring is eliminated, and it is compact and has a good appearance. Also, the drive box is mounted on the outside of the column, and the inside of the column can be installed. This has the effect of not narrowing the passage space between the columns.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a configuration diagram of the electric circuit shown above, FIG. 3 is a concrete circuit diagram of the electric circuit shown above, and FIG. Parts (a), (b), and (c) of the same drive mechanism part are partially omitted and can be cut away, and a front view, a side view, a top view, and FIG. 2 is an explanatory view of the engagement state of the engaging claws of FIG. 1, 1 is a column, 2 is an arm, 3 is a door, 4 is a rotating shaft, 5 is a speed reduction mechanism, 6 is a motor, 7 is a drive mechanism section, and 8 and 9 are detection switches. Reference numeral 10 is a transmitter, 11 is a receiver, and 12 is a control circuit unit.

Claims (1)

[Claims] 1. A base of an arm is rotatably mounted on an upper part of a column, a tip of the arm is connected to a door, and the door is closed in a state in which the door is oriented vertically, and the door is horizontally upward. In the garage door that is opened in the state of facing, the drive mechanism section that drives the rotary shaft by transmitting the rotation output of the motor to one end of the rotary shaft of the column, the operation signal from the outside and the closing and opening of the door body. A drive box mounted on the outer surface of the support column is internally equipped with an electric operation section including a control circuit section that controls the rotation of the motor according to the state of a detection switch that detects each end. Opening and closing device for garage door.