JP2007063937A - Screen opening/closing device and screen opening/closing control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a screen opening/closing device to be arranged on a window in use for shielding outside light or shutting off a field of view, while preventing damage to a screen or the device itself even when outer force is applied to the screen. <P>SOLUTION: A weight bar 22 mounted at the lower end of the screen 21 is slidably engaged with a guide member 32 set along a wall face via an elastic member 34. Besides, a detector 44 is provided at the end of the guide member 32 and a sensor 43 is provided to be engaged with the detector 44. The sensor 43 detects the movement of the detector 44 which is caused by the load of great outer force on the screen 21, to roll up the screen 21. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a curtain body opening / closing device that electrically winds or feeds a sheet-like curtain body, and a curtain body opening / closing control method.

  2. Description of the Related Art Conventionally, there is a curtain opening and closing device that winds a sheet curtain and feeds it out, for example, by arranging it on a window or the like to block outside light or block the field of view.

  The basic configuration of this curtain body opening / closing device includes a sheet-like curtain body, a roll material for winding the curtain body, a drive unit for electrically rotating the roll material, and the width of the lower end portion of the curtain body A bar-like weight bar attached over the direction, and a guide member that is slidably engaged with the weight bar and is laid in the opening / closing direction on both sides of an opening such as a window. The curtain body is opened and closed along the guide member to suppress fluttering of the curtain body.

  By the way, this type of curtain body opening / closing device may be damaged when a large external force is applied to the curtain body, so it is necessary to take some solution.

  Therefore, as a curtain body opening / closing device that prevents damage to the screen material (curtain body) due to an impact as much as possible, for example, band magnets are provided at both left and right ends of the screen material, and the left and right ends of the screen material are opened to windows by the belt magnet. There is a screen device that can be detachably adsorbed on rails erected on the left and right sides of the opening of the door and wind up a belt attached to a screen material to open the opening. In addition, this screen apparatus is provided in a disaster prevention area and is used for fireproof / smokeproof shutters.

  According to this apparatus, since the left and right end portions of the screen material are detachably adsorbed by rails erected on the left and right sides of the opening by the flexible adsorbing means, when an impact is applied to this, Since both ends of the screen material are detached from the rail, an excessive external force is not applied to the screen material, and as a result, damage to the screen material can be prevented (see, for example, Patent Document 1).

Japanese Patent Laying-Open No. 2005-113509 (first page, FIG. 1)

  However, if the above means is applied to a curtain opening / closing device that is installed in a window or the like to block outside light or block the field of view, both ends of the curtain body will be damaged during gusts and storms. It can be considered that the curtain body largely fluctuates due to coming off from the guide member and the curtain itself as well as the apparatus itself is damaged.

  Accordingly, the present invention has been made in view of such a situation, and an object thereof is to provide a curtain opening / closing device and a curtain opening / closing control method capable of solving the above-described problems.

In order to achieve the above technical problem, the curtain opening / closing apparatus and curtain opening / closing control method according to the present invention employ the following technical means.
In other words, the curtain opening and closing device according to claim 1 is a curtain opening and closing device including a mechanism control unit capable of electrically winding and unwinding the curtain body, and a weight bar attached to a lower end portion of the curtain body; The guide member stretched on the wall surface is slidably engaged, and a sensor unit for detecting the shake of the guide member is provided, and the mechanism control unit detects the shake of the sensor unit. The curtain is rolled up based on the above.
According to a second aspect of the present invention, the curtain body opening and closing device according to the first aspect is the first bracket fixed to the wall surface on the winding direction side of the curtain body, and the first bracket fixed to the wall surface on the feeding direction side of the curtain body. One end of the guide member is fixed to the second bracket, one end of an elastic member that can be expanded and contracted is fixed to the first bracket, and the other end of the guide member is connected to the other end of the elastic member. And the sensor section includes a detector provided on the guide member on the winding direction side of the curtain body and a sensor fixed to the first bracket.
According to a third aspect of the curtain opening and closing device of the present invention, the first bracket supports a roll member that winds the curtain body, and the guide member includes a roll member and a wall surface side. It is characterized by being stretched in a U-turn shape via a pulley provided between them.
According to a fourth aspect of the curtain opening / closing control method, the weight bar attached to the lower end of the curtain and the guide member stretched on the wall surface are slidably engaged, and the curtain is moved along the guide member. A curtain body opening / closing control method in which a body is electrically wound up and fed out, wherein a shake of the guide member is detected by a sensor, and the curtain body is wound up based on a detection result of the sensor.

  According to the present invention, the weight bar attached to the lower end portion of the curtain body and the guide member stretched on the wall surface are slidably engaged, and the sensor unit for detecting the shake of the guide member is provided, Since the sensor unit detects the shake of the guide member that occurs when a large external force is applied to the curtain body and winds up the curtain body, it is possible to prevent damage to the curtain itself as well as the apparatus itself.

Next, an embodiment of the curtain opening and closing device according to the present invention will be described.
As shown in FIG. 1, the curtain opening / closing device according to the present embodiment includes a mechanism control unit 1, a curtain unit 2, a guide unit 3, and a sensor unit 4.

  The mechanism control unit 1 includes a first bracket 11, a roll member 12, a drive unit 13, and a control unit 14.

  The first bracket 11 is a band plate member formed to be bent in a substantially L shape in plan view, and is provided with a mounting screw hole 11a extending in the vertical direction on the mounting surface to be mounted on the wall surface, and orthogonal to the mounting surface. A roll member 12, which will be described later, is rotatably supported by a standing surface to be supported via a bearing (not shown). The first bracket 11 is composed of a pair of left and right, and is disposed on the upper surface of the window frame or on the wall surface above the window frame (the wall surface on the winding direction side of the curtain body 21) so that the mounting surfaces are on the inside.

  The roll member 12 is a shaft body in which one end of a curtain body 21 having a required length formed in a belt shape is fixed and wound around the curtain body 21, and as described above, both end portions of the roll member 12. Is rotatably supported by the first bracket 11 via a bearing.

  The drive unit 13 includes a drive motor 131 disposed on a standing surface of the first bracket 11 on the side opposite to the roll member 12, a rotation shaft (not shown) of the drive motor 131, and the first bracket 11. A bevel gear mechanism, a worm wheel gear mechanism, or a mechanism portion (not shown) such as a timing belt that links the end portion of the roll member 12 protruding from the rotation portion of the drive motor 131 via the mechanism portion. As a result, the roll member 12 is rotated.

  In the present embodiment, the drive unit 13 is illustrated as being disposed on the first bracket 11 on the right side in FIG. 1, but may be disposed on the first bracket 11 on the left side or on both sides. good.

  The control unit 14 is a remote controller connected to the drive motor 131, and winds up the curtain body 21 in the event of an abnormality based on detection of shake of the sensor unit 4 described later. Details will be described later.

  The curtain body unit 2 includes a curtain body 21 and a weight bar 22.

  The curtain body 21 is a non-combustible or incombustible belt member having a required length, and has one end (upper end) fixed to the roll member 12 as described above.

  The weight bar 22 is a rod-like member having a required length and a required mass slightly longer than the width of the curtain body 21, and fastens the other end (lower end) of the curtain body 21 in the width direction. Further, at both ends of the weight bar 22, a retractable pin 23 urged toward the inside of the weight bar 22 is provided. The pin 23 is provided with a communication hole through which a guide member 32 described later is inserted.

  As shown in FIG. 2, the guide portion 3 includes a second bracket 31, a guide member 32, a pulley 33, and an elastic member 34.

  The second bracket 31 is a band plate member formed to be bent in a substantially L shape in a plan view, and is provided with an attachment screw hole 31a on an attachment surface to be attached to a wall surface, and an upright surface orthogonal to the attachment surface. A mounting bracket 31b having a substantially U-shape in front view provided with an insertion hole through which a guide member 32 (described later) is inserted is provided outside. The second bracket 31 is composed of a pair of left and right, and is disposed on the wall surface below the window frame or below the window frame (the wall surface on the drawing direction side of the curtain body 21) so that the mounting surfaces are on the inside.

The guide member 32 is made of a flexible stranded wire based on a piano wire or a steel wire (not necessarily a stranded wire). The guide member 32 has a lower end inserted through the insertion hole of the mounting bracket 31b and hooked to be fixed at one end, and the other end is connected to the other end of the elastic member 34 via a pulley 33 described later. It is connected.
Further, the guide member 32 is inserted into the communication hole of the pin 23 that can be projected and retracted provided at both ends of the weight bar 22, and the guide member 32 is urged to slide on both end surfaces of the weight bar 22. Guided by

  The pulley 33 is pivotally supported by a support rod 33a erected from the bottom surface opposite to the mounting surface of the first bracket 11, and is disposed between the roll member 12 and the wall surface side. The upper portion of the guide member 32 is stretched over the pulley 33.

The elastic member 34 is composed of a tension spring having one end fixed to the lower portion of the first bracket 11 and the other end connected to the other end of the guide member 32. The pulley 33 has the guide member 32 with a required tensile force. It is stretched in a U-turn shape via
The guide member 32, the pulley 33, and the elastic member 34 described above are disposed on both the pair of first brackets 11.

  As shown in FIGS. 3 and 4, the sensor unit 4 includes a fixture 41, a guide rail 42, a sensor 43, and a detector 44.

  The fixture 41 is formed in a substantially U shape in a cross-sectional view in which the back side is inserted into a guide member 32 positioned between the pulley 33 and the elastic member 34.

  The guide rail 42 is notched so that the upper part does not interfere with the pulley 33, and a substantially U-shaped member in a cross-sectional view is connected in the vertical direction, and the guide rail 42 is vertically provided on the upper part of both the pair of first brackets 11. It is provided so that it may extend. Further, as shown in FIG. 4, the above-described fixture 41 is loosely fitted to the guide rail 42 so as to be slidable.

The detector 44 is a member that performs sensing formed in a substantially block shape, and is inserted into the opening of the fixture 41.
The sensor 43 is a contact-type sensor that can detect the detector 44, and is fixedly inserted into the opening of the guide rail 42.

In the sensor unit 4 configured in this manner, the guide member 32 stretched by the elastic member 34 having a required tensile force does not move when the curtain body 21 is normally extended or rolled up. When an external force is applied, the elastic member 34 is displaced and the detector 44 moves, and the sensor 43 detects it.
As shown in FIGS. 3 and 5, the sensor unit 4 is provided only on one of the pair of first brackets 11 (in the present embodiment, it is provided only on the left first bracket 11). The right first bracket 11 is not provided).

  In the curtain opening and closing device according to the present embodiment configured as described above, the curtain body 21 is fed out or rolled up along the guide member 32 via the weight bar 22 when the user operates the remote controller. . At this time, when the curtain body 21 reaches a required position (feeding out and winding up), a sensor (not shown) detects and stops the rotation of the driving motor 131.

If the curtain body 21 is extended with the window opened, the guide member 32 behaves by the elastic member 34 even if an external force is applied to the curtain body 21 due to a sudden gust or strong wind. As shown in FIG. 4, the detector 44 fixed to the fixture 41 moves in the vertical direction, and the sensor 43 detects an abnormal amplitude (shake detection). The abnormal signal from the sensor 43 is transmitted to the control unit 14, and the control unit 14 that has received the abnormal signal rotates the drive motor 131 to wind up the curtain body 21.
In this way, the curtain opening and closing device according to the present embodiment prevents damage to the curtain body 21 as well as the apparatus itself even when an external force is applied to the curtain body 21.

The curtain opening and closing device according to the present embodiment has been described above. However, the above-described embodiment shows an example of a preferred embodiment of the present invention, and the present invention is not limited thereto. Various modifications can be made without departing from the scope of the invention.
For example, the curtain opening / closing control method in which the shake of the guide member 32 described above is detected by the sensor 43 and the curtain body 21 is rolled up based on the detection result of the sensor 43 may be used.

It is a front view of the curtain body opening and closing device according to the present embodiment. FIG. It is sectional drawing which follows the X1-X1 line | wire of FIG. It is sectional drawing which follows the YY line | wire of FIG. It is sectional drawing which follows the X2-X2 line | wire of FIG. It is operation | movement explanatory drawing at the time of abnormal amplitude (at the time of shake detection).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mechanism control part 11 1st bracket 11a Screw hole 12 Roll member 13 Drive part 131 Drive motor 14 Control part 2 Curtain body part 21 Curtain body 22 Weight bar 23 Pin 3 Guide part 31 2nd bracket 31a Screw hole 31b Mounting bracket 32 Guide Member 33 Pulley 33a Support rod 34 Elastic member 4 Sensor part 41 Mounting tool 42 Guide rail 43 Sensor 44 Detector

Claims (4)

A curtain opening and closing device provided with a mechanism control unit capable of electrically winding and unwinding the curtain body,
A weight bar attached to the lower end portion of the curtain body and a guide member stretched on the wall surface are slidably engaged, and a sensor unit for detecting a swing of the guide member is provided.
The mechanism control section winds up the curtain body based on the shake detection of the sensor section. A first bracket fixed to the wall surface on the winding direction side of the curtain body, and a second bracket fixed to the wall surface on the drawing direction side of the curtain body,
One end of the guide member is fixed to the second bracket, one end of an elastic member that can be expanded and contracted to the first bracket is fixed, and the other end of the guide member is connected to the other end of the elastic member,
The curtain unit according to claim 1, wherein the sensor unit includes a detector provided on the guide member on a winding direction side of the curtain body, and a sensor fixed to the first bracket. Switchgear.   The first bracket supports a roll member that winds the curtain body, and the guide member is stretched in a U-turn shape via a pulley provided between the roll member and the wall surface side. The curtain opening and closing device according to claim 2, wherein the curtain opening and closing device is provided. Curtain body opening / closing control in which a weight bar attached to the lower end of the curtain body and a guide member stretched on the wall surface are slidably engaged, and the curtain body is electrically wound up and delivered along the guide member A method,
A curtain opening / closing control method comprising: detecting shake of the guide member by a sensor; and winding up the curtain based on a detection result of the sensor.

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