JP2003239664A - Speed controlling method of automatic opening and shutting expansion gate door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a speed controlling method of an automatic opening and shutting expansion gate door capable of sufficiently ensuring safety without feeling any stress on an opening and shutting time of a doorway. <P>SOLUTION: In the automatic opening and shutting expansion gate door capable of expansively connecting a movable stile 8 and a fixed stile 9 and a plurality of frame bodies 10 arranged between both stiles with a pantograph mechanism, the starting end and the closing end within a range of movement of the expansion gate door are made as a lower speed zone, an intermediate section between both ends is made as a higher speed zone, a speed of the opening and shutting door is made as a low speed in the lower speed zone, and it is made as a high speed in the higher speed zone. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speed control method for controlling the speed of an expansion / contraction gate at the time of opening / closing, in an automatic opening / closing expansion gate that is driven by a motor for a sliding door gate provided at the entrance of a parking space such as a parking lot or a garage. Regarding

[0002]

2. Description of the Related Art Conventionally, such an automatic opening / closing gate is a sliding door type, a telescopic type in which a fence-like frame is connected by a pantograph mechanism, a folding door type or a flip-up type, or Various structures such as a so-called shutter type, which is rolled up when opened, are adopted according to the structure of the garage or parking lot and the surrounding structure.

Opening and closing of these gates is different from normal building doors, and even a lightweight gate has a considerable weight, and the operation is troublesome. An electric motor driven by a driving force of a motor incorporated in a car is used.

In particular, the opening / closing operation of the gate when the vehicle is actually started is very troublesome because the opening / closing operation of the gate and the getting on / off operation of the vehicle for it are repeated. Some have been equipped with a mechanism for opening and closing the gate by remote control from a position away from, but for that purpose, an automatic opening and closing mechanism for the gate is required.

As such an automatic opening and closing type expandable gate,
It is known that a drive wheel provided on the gate itself is rotated by a motor. In that case, the gate speed is constant,
No special consideration was given.

[0006]

However, even if the moving speed of the gate at the time of opening and closing is constant, if the speed is slow, it is safe, but opening and closing takes time, which is annoying. On the other hand, when the moving speed of the gate is high, the opening and closing time is short and the entrance and exit is smooth, but there is a danger that an infant or the like may be caught in the telescopic gate, especially near the end of the closing operation.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, and to provide a speed control method for an automatic opening and closing gate which does not cause stress in the opening and closing time of the entrance and exit and which can ensure sufficient safety.

[0008]

In order to solve the above-mentioned problems, the speed control method for an automatic opening / closing telescopic gate according to the present invention comprises:
In an automatic opening and closing expandable gate in which a movable frame, a fixed frame, and a plurality of frame bodies arranged therebetween are expandably connected by a pantograph mechanism, the start end and the end end of the range of movement of the expandable gate are set to a low speed range, The middle part in the meantime is the high speed range,
It is characterized in that the speed of the door is low in the low speed range and high in the high speed range.

Further, the speed control method for an automatic opening / closing telescopic gate according to the present invention is an automatic opening / closing telescopic gate in which a movable frame, a fixed frame, and a plurality of frame bodies arranged between them are extensiblely connected by a pantograph mechanism. The movable frame, the fixed frame, or the frame body is provided with a slide member that slides in the vertical direction in association with the expansion and contraction operation, and the moving range of the slide member is the moving start end / end end of the expandable gate and its intermediate part It may be configured such that the low speed range and the high speed range are associated with the above conditions and the respective speed ranges are detected to control the moving speed of the expandable gate to the low speed and the high speed.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view of a main part of an automatic opening / closing expandable gate, FIG. 2 is a front view thereof, and FIG. 3 is a plan view thereof.
In these figures, reference numeral 1 indicates an entrance / exit of a parking space or the like. Inside the entrance, a hanging pillar 2 and a door stop pillar 3 are erected in accordance with the width of the door. A metallic traveling rail 4 is arranged inside the doorway, and an expandable gate A for opening and closing the doorway is arranged on the traveling rail 4. The traveling rail 4 has a dovetail-shaped guide groove 6 in the center, is discontinuous on the suspension base side, and has a divergent guide portion 7 formed at the end thereof.

The expandable gate A connects the movable frame 8, the fixed frame 9 and a plurality of elongated frame bodies 10 arranged between them through a pantograph mechanism, and expands and contracts the whole to open and close the doorway. . Further, the fixed frame 9 is the hinge fitting 5
It is rotatably connected to the hanging pillar 2 through the.

As described above, the expandable gate A is composed of the fixed frame 9 and the movable frame 8 at both ends, the plurality of elongated frames 10 between the two frames, and the pantograph mechanism. The vertical members 10a on both sides of the fixed frame 9, the movable frame 8 and the frame body 10 are connected by three shafts 11, 12, 13 of upper, middle and lower.
The shaft 12 at the center is a fixed shaft that is fixed, while the upper and lower shafts 11 and 13 are slide shafts that can slide in the vertical direction.

In the pantograph mechanism, each end portion and the central portion of a lattice member 15 constructed so that parallelograms are continuous are connected to the shaft by a pair of pairs. The quadrilaterals are connected by shifting them by half (half a pitch). Thereby, the frame body 10
Are arranged every other diagonally parallelogram. The grid member 15 is a hollow member made of a conductive material such as aluminum or copper. The intersecting portions of the lattice members 15 forming the two pantograph mechanisms are also connected by the connecting shaft 14. Therefore, when the pantograph mechanism is expanded or contracted, each frame body 10 can be moved in parallel and moved toward and away from each other.

The two grid members 15 forming the respective corners of the parallelogram are connected to both sides of the same shaft at intervals.

Next, a pair of left and right running wheels 16 are attached to an intermediate portion of the expansion / contraction gate A, and a pair of left and right driving wheels 17 are provided at a lower portion of the movable frame 8 and behind the driving wheels 17. Is provided with the same rotary caster 18 as the traveling wheels.

The drive wheel 17 is configured to be driven by a motor 20 arranged above it. That is, as shown in FIGS. 4A and 4B, the bevel gear 19 fixed to the rotary shaft 22 of the drive wheel 17 is meshed with the bevel gear 21 provided on the movable frame 8, and the bevel gear 21 of the movable frame 8 is It is connected to the output shaft of the motor 20 via an electromagnetic clutch 24. As a result, when the motor 20 operates, the rotation of its output shaft is transmitted to the rotary shaft 22 of the drive wheel 17 via the electromagnetic clutch 24 and the bevel gears 19 and 21, and the drive wheel 17 can be rotated in the forward and reverse directions. You can
The door can be opened and closed by expanding and contracting the expandable door A.

The motor 20 and the electromagnetic clutch 2
4, the bevel gears 19 and 21, the drive wheels 17 and the like are movable frames 8
Slide frame 2 that is slidable up and down
It is attached to 5.

Next, the motor 20 is configured to be driven by electric power supplied from a battery 26 housed and fixed in the fixed frame 9 at one end of the entrance / exit. Battery 2
Electric power is supplied from 6 to the motor 20 via a pantograph mechanism forming the expandable gate A. The power feeding system will be described with reference to FIGS. 2 and 5.

First, the cross sections of the portions indicated by a, b, c, d, f, and f in FIG. 2 are shown in FIGS. 5 (a), 5 (b), 5 (c), and 5 (d), respectively.
(E) and (f) are shown.

FIG. 5A shows a portion where two grid members 15 constituting one pantograph mechanism are connected to a fixed shaft 12 at the center of the fixed frame 9 and the movable frame 8. The fixed shaft 12 is made of an insulating material. Consisting of terminal bushes 27 at both ends, a central terminal bush 28, and a conductive terminal shaft 29 between them.
The grid member 15 is rotatably connected to each terminal shaft 29.

Both terminal shafts 29 of the fixed frame 9 are connected to terminals of both electrodes of the battery 26 by a cord 30a. Therefore, the grid material 15 is energized from the terminal shaft 29. Both terminal shafts 29 of the movable frame 8 are connected to the motor 20 and the electromagnetic clutch 24.
And the like are connected to terminals of both polarities of electrical equipment such as a cord 30b. Therefore, the electric power is supplied from the terminal shaft 29 to each electric accessory.

FIG. 1B shows a portion where the above-mentioned lattice material 15 is connected to another lattice material 15 of the same pantograph mechanism through a slide shaft. The slide shafts 11 and 13 are arranged along the slide groove 10b of the frame body 10. The structure is slidable up and down, the two grid members 15 are connected to the conductive shaft 31 with a space, and the conductive shaft 31 is covered with an insulating bush 32. As a result, the one grid member 15 is energized to the other grid member 15.

It is unstable because the conductive shaft only penetrates through the two grid members 15 and the energization is performed only by the contact between the inner surface of the through hole of the grid member 15 and the surface of the conductive shaft 31. Therefore, as shown in FIG. 6, the conductive clip 33 is attached to the conductive shaft 31, and the conductive clip 3 is attached.
3 is preferably brought into contact with the inner surface of the lattice member 15.

Next, at the portion where the grid members 15 constituting the two pantograph mechanisms intersect with each other by the connecting shafts 14, both connecting shafts 14 are constructed so that the energization is alternately turned on and off along the opening / closing direction. .

That is, in the C portion of FIG.
As shown in (c), both grid members 15 are insulated bushes 32.
Is insulated by. Therefore, there is no energization from one side to the other lattice material 15.

On the other hand, in the second part of FIG.
As shown in (d), both grid members 15 are connected by the conductive connecting shaft 14. Therefore, electricity is supplied to the other grid member 15 from one side.

FIG. 3E shows a portion where the grid material 15 of the same pantograph mechanism is connected via the slide shaft 12 that slides along the slide groove 10b provided in the fixed frame 9 and the movable frame 8, and the conductive shaft 31. This is a structure in which one grid member 15 is connected to and the conductive shaft 31 is covered with an insulating bush 32. As a result, the grid frame 15 does not energize the fixed frame 9 or the movable frame 8.

FIG. 6 (f) shows a portion where the lattice members 15 of the same pantograph mechanism are cross-connected via the fixed shaft 12 of the frame body 10. The two lattice members 15 are connected to the insulating shaft 37 at a distance. The insulating shaft 37 is covered with an insulating bush 32. As a result, no electricity is supplied from one grid member 15 to the other grid member 15.

According to the above construction, the energized states of the two pantograph mechanisms are shown in FIG. In this manner, each pantograph mechanism constitutes a circuit that connects the battery 26 and the electrical equipment. Moreover, the circuits of the two systems of pantograph mechanisms are not independent of each other, but are configured to assist the energization by the other pantograph mechanism. Therefore, for example, even if there is a poor contact in the above-mentioned portion B, since electricity is supplied through another route such as the portion D and the portion B, electricity is always favorably supplied.

As described above, a basic electric circuit is constructed between the battery 26 and the motor 20 via the pantograph mechanism, and the battery 26 is operated by the power supply system.
Is supplied to the motor 20.

The outer surface of the grid member 15 is insulative and the inner surface thereof is electrically conductive. In the case of the aluminum grid material 15, the outer surface of the grid material 15 may be surface-treated to be insulated, and the inner surface may be made conductive. Other methods may be used.

Next, the moving speed of the expansion / contraction gate is controlled to be high speed and low speed. The control of the moving speed is performed by the movable frame 8, the fixed frame 9 and the frame 10 between them when opening and closing.
Since the end portions of the grid material 15 forming the pantograph move up and down along the surface of, the operation is performed using this.

That is, as shown in FIG.
An elongated detection spring plate 48 is arranged in the up-down direction on the upper part of the movable frame 8, and a sensing portion 49 bent at the tip thereof is trapezoidal.
Is formed, and the upper end is fixed to the movable frame 8, and the sensing unit 49 is arranged so as to engage with the slide shaft 11 of the movable frame 8. Further, inside the movable frame 8, an acceleration switch 50 is provided above the sensing portion 49 of the sensing spring plate 48.
Are arranged. When the expandable gate A moves to open and close, the slide shaft 11 also moves vertically.
With this movement, when the expandable gate A is in the low speed range of the open / close end, the slide shaft 11 corresponds to above or below the sensing portion 49 of the detection spring plate 48, but the expandable gate A does not open / close. When in high speed range, slide shaft 1 above
1 is set so as to correspond to the sensing portion 49 of the sensing spring plate 48. The detection spring plate 48 does not press the switch piece 51 of the acceleration switch 50 in the low speed range, but the detection spring plate 48 presses the switch piece 51 in the high speed range.

According to the above construction, when the expansion gate A is in the closed state, the slide shaft 11 is engaged with the upper end portion of the detection spring plate 48 as shown in FIG. Open / close switch (not shown) provided on the fixed frame 9 etc.
When the expansion gate A is opened by pressing, the slide shaft 11 does not sufficiently press the detection spring plate 48, so the acceleration switch 50 does not operate and the control device (not shown) that controls the power supply system operates in the low speed range. Then, the expansion / contraction gate A is moved at a low speed. After that, when the slide shaft 11 moves downward and rolls on the sensing portion 49 of the sensing rail 4 as shown in FIG.
Acceleration switch 5
The switch piece 51 of 0 is pressed to operate. As a result, the control device determines that it is in the high speed range, and increases the moving speed of the expansion / contraction gate A. Further, as shown in FIG. 3C, the slide shaft 11 passes through the sensing portion 49 of the sensing spring plate 48, so that the sensing spring plate 48 is separated from the acceleration switch 50 again by the elastic force. Therefore, the acceleration switch 50 is turned off, the control device determines again that the vehicle is in the low speed range, and moves the telescopic gate A at a low speed. Telescopic gate A
When the slide shaft 11 moves in the closing direction from the open state, the slide shaft 11 moves in the opposite direction, so that the slide shaft 11 is adjusted to the low speed and the high speed as described above. As described above, the moving speed at the time of opening and closing the expandable gate A is controlled.

The movable frame is provided with a plate-like slide member (not shown) which is interlocked with the slide shaft 11 and bent in the same manner as the detection spring plate 48, and accelerates to a portion corresponding to this slide member. The switch may be fixed and the acceleration switch may be turned on and off to control the speed when the slide member passes through the low speed range and the high speed range.

(Overall Control) Next, the overall movement control of the automatic opening / closing gate will be described. When the opening / closing switch is pressed or the remote control is operated in a state in which the expansion / contraction gate A closes the doorway, power is supplied from the battery 26 to the motor 20 through the power supply system, and the electromagnetic clutch 24 transmits power from the motor 20 to the drive wheels 17. Thus, the motor 20 rotates in the normal direction through the discrimination circuit of the control device, and the rotational force is transmitted to the drive wheels 17. Thereby, the expansion / contraction gate A starts traveling.

When the expansion / contraction gate A starts to travel, the acceleration switch 50 is not pressed, so the vehicle travels in the low speed mode in the low speed range. However, if it moves a little, the acceleration switch 50 is pressed by the detection spring plate 48 to move in the high speed range. Drive in high speed mode.

Thereafter, the detection spring plate 48 separates from the acceleration switch 50 before the expansion gate A is opened, so that the vehicle travels again in the low speed range in the low speed mode. Since the open end switch 43 corresponds to the surface of the frame body 10, the switch is turned on and the motor 2
The energization to 0 is cut off, and the electromagnetic clutch 24 is disengaged. As a result, the transmission of power from the motor 20 to the drive wheels 17 is cut off, and the telescopic gate A stops traveling. Since the expansion / contraction gate A has a small inertial force after it has slowed down,
After the disengagement operation of the electromagnetic clutch 24, the expansion / contraction gate A is immediately stopped, and a large force is not applied to the door strut post 3. As a result, the doorway is fully opened.

Next, when the door is closed, the motor 20 is energized by pressing a switch or operating the remote control, and the electromagnetic clutch 24 connects the motor 20 and the drive wheel 17, and at the same time, the motor 20 is passed through the discrimination circuit of the control device.
Reversely and transmit the power to the drive wheels 17. Therefore, the expansion / contraction gate A starts moving in the closing direction.

The forward / reverse rotation of the motor 20 may be determined based on the closed end switch 44 and the open end switch 43. If the closed end switch 44 is in the ON state, it is determined that the doorway is in the closed state. When the switch is pressed in this state, the motor 20 is rotated in the forward direction, and conversely, the open end switch 43 is in the ON state. For example, if it is determined that the doorway is open and the switch is pressed in this state, the motor 20
Can be set to be reversed.

Even when the telescopic gate A moves in the closing direction,
At the start of running, the vehicle runs in the low speed mode in the low speed mode, the high speed area in the high speed mode, and finally the low speed area in the low speed mode. Then, when the tip of the closed end switch 44 hits the door contact surface of the door stop pillar 3, the closed end switch 44 is turned on and the motor 2
The energization to 0 is cut off, and the electromagnetic clutch 24 is disengaged. As a result, the transmission of power from the motor 20 to the drive wheels 17 is cut off, and the telescopic gate A stops traveling.

Although the above example is an example in which power is supplied from the battery to the motor, it is needless to say that it can be applied to the case where power is supplied to the motor from a household power source.

As described above, since the expansion / contraction gate only slows down at the start and end of movement, the average movement speed does not slow down, so the opening / closing time is short and the entrance / exit is smooth and stress-free. In addition to not feeling, the speed is slow in the parts with many dangers, so sufficient safety can be secured.

[0044]

According to the invention of claim 1, the start end and the end end of the moving range of the expansion / contraction gate are in the low speed range, and the middle part between them is in the high speed range. It is set to low speed and high speed in high speed range. Therefore,
The speed at the time of movement is low immediately after the start of movement and immediately before the stop of movement, and becomes high in the middle thereof. Therefore, the speed of the expansion / contraction gate is smooth as a whole, and stress is not felt during the opening / closing time of the entrance / exit.

Further, since the telescopic gate does not suddenly move when opening and closing, and the moving speed becomes low just before the end of the operation when the telescopic gate is closed, an unexpected accident does not occur, so that there is a problem in the safety device. Even if it exists, it is not dangerous and is highly safe.

Further, since the speed becomes low at the opening / closing end of the expansion / contraction gate, the impact on the door stop pillar of the expansion / contraction gate can be reduced.
There is no risk of deformation or malfunction of electrical equipment inside the expansion gate.

According to the second aspect of the invention, the speed can be controlled by converting the moving direction of the telescopic gate into the vertical direction of the slide member and dividing the moving range of the slide member into the low speed region and the high speed region. The structure of the control mechanism can be made simple and compact.

[Brief description of drawings]

FIG. 1 is a perspective view schematically showing a telescopic gate according to the present invention.

FIG. 2 is a front view of the expandable gate.

FIG. 3 is a plan view showing before and after the expansion / contraction of the expansion / contraction gate.

4A and 4B are cross-sectional views showing the internal structure of the movable frame.

5A to 5F are cross-sectional views of a connecting portion between a shaft and a lattice member.

FIG. 6 is an explanatory view of a mounting state of a power clip

FIG. 7 is a front view showing a simplified energized state by a pantograph mechanism.

FIG. 8 is an enlarged view showing a locked state.

9 (a), (b) and (c) are explanatory views of an operation mode of an acceleration switch.

[Explanation of symbols]

8 movable frames 9 fixed frame 10 frame 15 Lattice material 17 drive wheels 20 motor 26 Battery

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kaoru Kobayashi             1-11-1 Osaki, Shinagawa-ku, Tokyo Shin Nikkei             Within the corporation (72) Inventor Kyukou Yamakawa             1-11-1 Osaki, Shinagawa-ku, Tokyo Shin Nikkei             Within the corporation (72) Inventor Aramaki             2-12-3-Namiki, Kanazawa-ku, Yokohama-shi, Kanagawa             201 F-term (reference) 2E038 BA01 CA02 DD04                 2E052 AA05 CA05 DA08 DB08 EA07                       EB01 EC01 GA02 GB12 GC02                       GC06 GD07 KA12 KA15

Claims (2)

[Claims] 1. An automatic opening / closing expandable gate in which a movable frame, a fixed frame, and a plurality of frame bodies arranged between them are connected to each other by a pantograph mechanism so as to be expandable and contractible. Is set as a low speed range, an intermediate portion therebetween is set as a high speed range, the speed of the door is set to be low in the low speed range, and the speed is set to be high in the high speed range. 2. An automatic opening / closing expandable gate in which a movable frame, a fixed frame, and a plurality of frame bodies arranged between the movable frame and the frame are connected to each other by a pantograph mechanism so that the movable frame, the fixed frame, or the frame can be expanded or contracted. A slide member that slides in the vertical direction is provided in conjunction with each other. A speed control method for an automatic opening / closing telescopic gate, which is characterized by detecting the speed range and controlling the moving speed of the telescopic gate at low speed and high speed.