JP6498067B2 - Detection device for displacement of slat in architectural shutter device - Google Patents

Description

  The present invention relates to a positional deviation detection device for a slat in a building shutter device for detecting that a slat constituting a shutter curtain is displaced in the left-right direction in the architectural shutter device.

Generally, an architectural shutter device provided to open and close an opening such as a doorway of a building is configured to open and close the opening when the shutter curtain is wound around a winding drum and unwound. However, if the shutter curtain opening / closing operation is repeated, the winding posture of the shutter curtain with respect to the winding drum may be displaced from side to side. If this misalignment becomes large, the misaligned slats may come into contact with the bracket that supports the take-up drum. If this happens, noise will be generated when the shutter curtain is opened and closed, and smooth opening and closing operation will be impaired. In a severe case, there is a problem that the bracket is damaged by the end of the misaligned slat.
In view of this, there has been known one provided with a position deviation detecting device for detecting an abnormality that the slat is displaced in the left-right direction on the inner surface of the bracket (see, for example, Patent Documents 1 and 2).

Utility Model Registration No. 2545131 Japanese Patent Laid-Open No. 2005-16058

  However, since the conventional positional deviation detection device is provided with a microswitch protruding from the inner surface of the bracket, the amount of projection from the inner surface of the bracket of the positional deviation detection device is large. As a result, the winding is wound around the bracket and the winding drum. The gap between the shutter curtain to be mounted needs to be wide enough for the position deviation detection device to protrude, and there is only a problem that the left and right width of the shutter curtain becomes narrow (the opening width of the opening becomes narrow). In addition, there is a problem that it cannot be retrofitted to an existing one in which such a space is not secured, and here is a problem to be solved by the present invention.

The present invention was created in view of the above-described circumstances in order to solve these problems, and the invention of claim 1 is configured by connecting a plurality of slats in a single plate shape. In the architectural shutter device configured to support the winding drum around which the shutter curtain is wound with the left and right brackets, a position shift detection device for detecting that the slat is shifted in the left and right direction is provided inside the bracket. Position displacement detection of a slat in a shutter device for building, comprising: a wiring provided on a side surface; and a position displacement detection circuit that detects that the wire has been cut by a slat displaced in the left-right direction. Device.
According to a second aspect of the present invention, in the architectural shutter device according to the first aspect of the present invention, the wiring is a single wiring.
The invention according to claim 3 is the architectural shutter device according to claim 1 or 2, wherein the wiring is provided on a flexible printed wiring sheet, and the printed wiring sheet is adhered to the inner surface of the bracket. This is a slat position shift detection device.
According to a fourth aspect of the present invention, the architectural shutter device is electrically driven and has a self-returning open / close operation switch. When the open / close switch is turned on, the shutter curtain is fully closed and fully opened. A self-holding circuit for self-holding the opening / closing operation until the stop switch is operated, and the position shift detection circuit is used for detecting the self-holding circuit when the wiring is cut. The slat position shift detection device in the architectural shutter device according to any one of claims 1 to 3, further comprising switch means.
The invention according to claim 5 is characterized in that the positional deviation detection circuit is provided with power switch means for turning on the power in connection with the self-holding circuit being in the self-holding state. 4. A slat position shift detection device in the architectural shutter device according to 4.

According to the first aspect of the present invention, the wiring cut by the misaligned slats only needs to be provided on the inner surface of the bracket, and it is not necessary to secure an arrangement space as in the case of providing a microswitch. Can be provided without any problem.
According to the second aspect of the present invention, the positional deviation of the slat can be detected with a single wire, and the structure is simple and installation is easy.
By providing the wiring on the inner surface of the bracket according to the invention of claim 3, not only is it easy to stick a thin flexible printed wiring sheet, but it is not only easy, but also there is no space in the width direction. However, since it can be provided, it can be used for existing ones, and the arrangement work is diversified.
According to the fourth aspect of the present invention, the shutter curtain opening / closing operation is interrupted because the self-holding circuit for sustaining the opening / closing operation is shut off when the positional deviation is detected when the architectural shutter device is electrically operated. Will not be executed unless the on / off switch is kept on, and therefore, it is possible to recognize that an abnormality has occurred and to perform an open / close operation for the time being.
According to the fifth aspect of the present invention, the power can be saved only when the power supply to the positional deviation detection circuit is turned on / off.

It is a front view of an electric construction shutter device. It is a front view of a bracket part. It is an inner side view of a bracket part. It is a circuit diagram of a position shift detection circuit. It is a circuit diagram of a drive circuit. It is an inner side view of the bracket site | part which shows another example.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes an architectural shutter device. The shutter device 1 includes a shutter curtain 2 for opening and closing an opening, a winding drum 3 for winding the shutter curtain 2, and the winding Various types of guide rails 4 are provided on the left and right sides of the opening to open and close the shutter curtain 2 unwound from the drum 3, and the left and right brackets 5 are provided on the ceiling of the opening to support the winding drum 3. All of the components and the like are conventional.
Incidentally, the present invention can be applied to any of various shutter devices such as a heavy shutter device, a lightweight shutter device, and a grill shutter device, and the open / close drive system may be an electric type or a manual type. Needless to say.

The shutter curtain 2 is formed by connecting a plurality of slats 2a in a single plate shape. Among them, the slat 2a on the suspension end side is a suspension fitting (in this embodiment, the slats 2a cut shortly are 3 (Thus, the slats 2a are connected in series in the drawing.) 6 is connected to the winding drum 3.
In the present embodiment, since the bracket 5 is positioned at a position that is wider in the left-right direction than the rail groove 4a of the guide rail 4, the slat 2a that is a detection target of the left-right position shift is the slat 2a of the entire slat 2a. Some of the slats 2a are on the upper side (the take-up drum 3 side) of the shutter portion 2 of the shutter case 7 from which the shutter curtain 2 is extended even when the shutter curtain 2 is fully closed, and are in the shutter case 7. Some of the slats 2a on the suspension base side are displaced in the left-right direction, and an abnormality may occur in the winding posture. In this case, if the positional displacement in the left-right direction increases and the slat 2a contacts the inner surface of the bracket 5, the slat 2a contacts the inner surface of the bracket 5 during the opening / closing operation, so that abnormal noise is generated. There is a problem that dynamic resistance occurs and smooth opening / closing operation is impaired, and further, the inner surface of the bracket 5 is damaged.

Therefore, a flexible printed wiring sheet 9 which is a constituent member of a positional deviation detecting device for detecting that the slat 2a on the suspension base side has been shifted to the left and right is used on the inner surface of the bracket 5. Is attached to the inner surface of the bracket 5 via an adhesive material such as an adhesive or a double-sided adhesive tape. In the positional deviation detection device of the present embodiment, a single U-shaped wiring 9 a is embedded in the printed wiring sheet 9. The wiring 9a only needs to be provided on the bracket 5 so as to face at least the movement locus of the suspension side slat 2a remaining in the shutter case 7 when the shutter curtain 2 is fully closed, and particularly remains in the shutter case 7. Since the slat 2a on the suspension side rotates at a position near the winding drum 3, it is preferable to dispose the slat 2a at a position corresponding to this rotational position.
Incidentally, it goes without saying that when the rail groove 4a of the guide rail 4 and the bracket 5 are set to be almost flush with each other, it is possible to detect the displacement of the slat 2a fed from the lintel portion 8. . In this case, the wiring 9a is not simply U-shaped but can be formed in an appropriate shape corresponding to the winding shape of the shutter curtain 2. That is, the wiring 9a is preferably provided on the bracket 5 at least in the range from the outer diameter of the winding drum 3 to the winding diameter K of the shutter curtain 2 when fully opened. For example, as in another example shown in FIG. In this state, the displacement of the slat 2a corresponding to the distortion and inclination of the bracket 5 and the mounting accuracy of the wiring 9a can be detected.

The wiring 9a is drawn out via a lead wire 10 and connected to a power source (for example, DC 12V, 24V) 11. The lead wire 10 is connected to a resistor 12 and a position shift detection relay switch 13 to form a position shift detection circuit 16. The switch contact (Ry) 13 a of the position shift detection relay switch 13 is a shutter. When the apparatus 1 is an electric type, as will be described later, the self-holding circuit 15d is cut off when it is provided in the self-holding circuit 15d of the drive circuit and a displacement is detected.
Incidentally, in the present embodiment, the switch contacts RYU and RYD of the open / close relay switches RYU and RYD, which will be described later, are connected in parallel to the position shift detection circuit 16, and the position shift detection circuit 16 is electrically driven in a self-holding state. The power is turned on only when the motor M is opening and closing so that power can be saved.

  FIG. 5 shows a typical drive circuit 15 of the electric shutter device 1, in which an electric motor M and a brake B provided in the switch A are connected to a three-phase 200V power source, while a self-returning push button. A circuit in which the open / close stop switches 14U, 14D, and 14S are provided in the drive circuit 15, but the stop circuit 15a in which the stop switch 14S that constitutes one of the operation switches 14 is provided includes an open switch 14U. The circuit is branched to an opening circuit 15b provided, a closing circuit 15c provided with a closing switch 14d, and a self-holding circuit 15d. The open circuit 15b is provided with an open relay switch RYU and a full open detection switch LSU, and the close circuit 15c is provided with a close relay switch RYD and a full close detection switch LSD. The self-holding circuit 15d further includes an open circuit 15e connected to the open circuit 15b between the open switch 14U and the open relay switch RYU, and a close switch 14D and a close relay switch to the close circuit 15c. And a closed circuit 15f connected to RYD. The open side circuit 15e is provided with a switch contact RYU of the open relay switch RYU, and the close side circuit 15f is provided with a switch contact RYD of the close relay switch RYD. Furthermore, switch contacts RYU and RYD for the open / close relay switches RYU and RYD are also provided in the power supply circuit for the electric motor M and the brake B.

  When the open switch 14U is turned on, the open relay switch RYU is turned on and the switch contact RYU is switched, whereby the electric motor M is opened and the open circuit 15e of the self-holding circuit 15d is opened. Even if the open switch 14U is turned off, the open operation is self-held until the stop switch 14S is turned off or the full open detection switch LSU detects full open. The same applies to the closing operation.

  In such a circuit configuration, the switch contact 13a of the positional deviation detection relay switch 13 is provided in the self-holding circuit 15d. As described above, when the slat 2a is displaced in the left-right direction and the wiring 9a is disconnected, the switch contact 13a is turned off due to interruption of the power supply to the displacement detection relay switch 13, thereby the self-holding circuit 15d. When the power is turned on and the self-holding is released, the opening / closing operation is stopped when the opening / closing switches 14U and 14D are not kept ON (push-off operation).

  In the present embodiment configured as described above, the one that detects that the slat 2a on the suspension side among the slats 2a constituting the shutter curtain 2 is displaced in the left-right direction supports the winding drum 3. As a result, the wiring 9a provided on the inner surface of the bracket 5 is sufficient, so that it is not necessary to secure an arrangement space like a conventional microswitch. For this reason, even an existing shutter device having no installation space can be easily provided, and the work of attaching the wiring 9a is simplified, thereby improving workability.

  In addition, since the wiring 9a for detecting the positional deviation may be a single wire, the structure is simple and the installation is simple. In addition, since this is provided on the flexible printed wiring sheet 9, it is easy to provide the wiring 9a because the sheet surface of the printed wiring sheet 9 has only to be attached to the inner surface of the bracket 5. In addition to being reliable, it can be provided even if there is no space in the width direction and can also be used for existing ones, so that the arrangement work can be diversified and workability can be improved. Become.

  In addition, since the slat 2a for detecting the displacement is the one on the suspending side closer to the winding drum 5 than the lintel 8 serving as the entrance / exit of the shutter curtain 2 when the shutter curtain 2 is fully closed, This makes it possible to reliably detect the displacement of the suspension side slats that cannot normally be visually observed.

  The architectural shutter device 1 according to the present embodiment is electrically driven and includes self-returning opening / closing stop switches 14U, 14D, 14S. When the opening / closing switches 14U, 14D are turned on, A self-holding circuit 15d is provided for self-holding the opening / closing operation until the shutter curtain 2 is fully closed and fully opened or the stop switch 14S is operated even if the opening / closing switches 14U and 14D are turned off. However, in this case, when the wiring 9a is cut by the misaligned slat 2a, the switch contact 13a of the misalignment detection relay switch 13 provided in the self-holding circuit 15d is turned off. The self-holding circuit 15d is cut off, and as a result, the electric motor M constituting the opening / closing machine A is connected to the opening / closing switch 14U. As long as the 14D is not turned on, the opening / closing operation is not performed, so that the switch operator can recognize that some abnormality has occurred and promote countermeasures for abnormalities such as making a service man call. The shutter curtain 2 can be opened and closed for the time being.

  In addition, in this arrangement, the position deviation detection circuit 16 is connected to the switch contacts RYU, RYD of the open / close relay switches RYU, RYD for self-holding. In order to save power, the power switch to the power switch 16 becomes a power switch means. Therefore, the power to the position shift detection circuit 16 can be turned on only when the shutter curtain 2 is opened and closed in a self-holding state. Become.

  Of course, the present invention is not limited to the above-described embodiment, and is not limited to a flexible printed wiring sheet. For example, a bare wiring may be provided. It goes without saying that the wiring can be implemented in any shape as long as it has a single shape (single stroke). In addition, a notification means may be provided so as to notify an abnormality by lighting an emergency light, a buzzer, or the like when the position deviation of the slat is detected by cutting the wiring.

  INDUSTRIAL APPLICATION This invention can be utilized as a position shift detection apparatus of the slat in the shutter apparatus for construction which opens and closes an opening part.

DESCRIPTION OF SYMBOLS 1 Shutter device 2 Shutter curtain 2a Slat 3 Winding drum 5 Bracket 7 Shutter case 8 Lining part 9 Flexible printed wiring sheet 9a Wiring 13 Position shift detection relay switch 13a Switch contact 14 Operation switch 14U Opening switch 14D Closing switch 14S Stopping switch DESCRIPTION OF SYMBOLS 15 Drive circuit 15d Self holding circuit 16 Position shift detection circuit RYU Opening relay switch and its switch contact RYD Closing relay switch and its switch contact

Claims (5)

In the architectural shutter device configured to support the winding drum on which the shutter curtain formed by connecting a plurality of slats in a single plate shape is supported by the left and right brackets, the slats are misaligned in the left-right direction. The position deviation detection device for detecting the position is provided with a wiring provided on the inner side surface of the bracket and a position deviation detection circuit for detecting that the wiring is cut by a slat that is displaced in the left-right direction. A slat position shift detection device in an architectural shutter device. The slat position shift detection device in the architectural shutter device according to claim 1, wherein the wiring is a single wire. The slat position shift detection device in the architectural shutter device according to claim 1, wherein the wiring is provided on a flexible printed wiring sheet, and the printed wiring sheet is adhered to an inner surface of the bracket. The architectural shutter device is electrically driven and has a self-returning open / close operation switch. When the open / close switch is turned ON, the shutter curtain is fully closed or fully opened, or the stop switch is operated. A self-holding circuit for self-holding the opening / closing operation until the position deviation detecting circuit has a detecting switch means for shutting off the self-holding circuit when the wiring is cut. The slat position shift detection device in the architectural shutter device according to any one of claims 1 to 3. 5. The architectural shutter device according to claim 4, wherein the misalignment detection circuit is provided with power switch means for turning on the power in connection with the self-holding circuit being in a self-holding state. Slat position shift detection device.

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