JPH11200744A - Obstruction detector of shutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the contact of a lead and a shutter curtain as much as possible and unwind and wind the lead well, when the shutter curtain is moved up and down. SOLUTION: The obstruction detector of a shutter comprises a cord reel 10 provided with the energizing means of the winding direction of a cord 11 and disposed in a shutter case 4, and the cord 11 constituted so as to be wound and unwound by the lifting and lowering of a shutter curtain by mounting one end side a seat plate switch 3 and the other end side the cord reel respectively, electrically connected to a detection switch at one end side and electrically connected to an opening and closing driving machine at the other end side. The cord reel 10 is disposed to be neared to a lintel part 9 so that the winding and unwinding part of the cord is positioned in a region 12 determined between the groove part 8a of a guide rail and an indoor side lintel member 9a in a lateral view.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shutter obstacle detecting device, and more particularly, to a shutter switch provided with a seat plate switch at a lower end of a shutter curtain, and an opening / closing drive is stopped by detecting an obstacle of the seat plate switch. The present invention relates to a shutter obstacle detecting device which stops the lowering of the shutter curtain.

[0002]

2. Description of the Related Art In order to prevent an accident caused by pinching of a person or an obstacle and damage to the shutter curtain when the shutter curtain of an electric shutter for opening and closing an opening is lowered, the shutter curtain is moved. A seat plate switch is provided at a lower end, and when an obstacle is detected by the seat plate switch, a detection signal is transmitted from the wireless transmission unit to an opening / closing control unit that controls the lifting / lowering operation of the shutter opening / closing drive, and a shutter car The descent of the ten is stopped.

[0003] However, in such a device in which the descent is stopped wirelessly, the battery is used as a power source for operating the wireless transmission unit, and the battery is replaced at a predetermined time in consideration of the consumption of the battery. Need for maintenance. Further, in the case of the optical type, when a shutter is installed in an opening of a sawmill or the like, there is a fear that a detection signal is not transmitted to the opening / closing control unit due to contamination of the transmission unit. Furthermore, the battery may not be replaced depending on the installation location of the shutter.

On the other hand, a seat plate switch and a shutter
In some cases, the opening and closing controller provided in the case is electrically connected by a conducting wire. In this case, the drawback of the wireless obstacle detection device can be solved.
In unwinding and winding the lead wire as the curtain moves up and down, there is a problem how the lead wire does not hinder and protect the lead wire. There are several applications for stopping the descent using a conductor.

In Japanese Utility Model Laid-Open No. 2-134299, a stationary pulley and a moving pulley are interposed in the middle portion of the conducting wire so that the moving pulley absorbs an increase or decrease in the extra length of the conducting wire due to opening and closing of the shutter curtain. Things are disclosed.

[0006] Japanese Patent Application Laid-Open No. 6-307174 discloses a take-up device in which a pay-out lead wire connected to an obstacle detection switch is provided at a lower end portion of a guide rail and is constantly charged in a take-up direction. What is wound is disclosed.

In Japanese Patent Application Laid-Open No. 8-109779, one end of a flexible flat belt into which a signal conductor from an open / close control unit to an obstacle detection switch is mixed is mounted on one side of a seat plate. The other end of the flexible belt is fixed in a guide rail located at the middle of the height of the opening, and follows the vertical movement of the seat plate that moves up and down the opening when the shutter curtain moves up and down. In this case, a flexible belt is raised and lowered.

In Japanese Patent Publication No. 54-25745, the lower end of a pull-out cord is connected to the terminal of a crimping switch provided on the lower surface of a seat plate, and the upper end of the code is disposed near the upper end of a guide rail. There is disclosed a cable reel wound around an installed cable reel.

Japanese Utility Model Laid-Open No. 55-103397 discloses a reel for winding a lead wire connected to a lower limit switch, wherein a spring is urged by a spring in a winding direction of the lead wire. There is disclosed a structure in which a lead wire is wound or unwound according to the movement of a curtain.

Japanese Utility Model Application Laid-Open No. 3-61096 relates to a power transmitting / receiving device for a shutter, in which one end is supported by a lower end of a shutter curtain and the other end is supported by a building, and a middle portion is made bendable. The figure shows an example in which power transmission and reception wires are arranged along a length member.

In the above-mentioned application, Japanese Utility Model Application Laid-Open No. Hei.
9, JP-A-6-307174, JP-A-8-1097
No. 79 and Japanese Patent Publication No. 54-25745, the conductor is passed through the guide rail, which complicates the assembly of the device. Japanese Utility Model Application No. 3-61096,
A lead wire is always extended in a long material. Japanese Utility Model Laid-Open No. 55-103397 merely shows a vague idea that a reel for winding is provided in a shutter case, and the reel for winding is a shutter case. The guide wire is disposed at a position deeper inward than the lintel portion in the lace, and guides the conductive wire through a guide roller provided in the lintel portion.

[0012]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned proposals, and is directed to a shutter obstacle detecting apparatus using a conductive wire.
The lead wire and the shutter curtain during the raising and lowering operation of the curtain
It is an object of the present invention to minimize the contact with a ten and to unwind or wind a conductive wire well.

Another object of the present invention is to make it possible to easily disconnect the connection between the lead wire and the seat plate, thereby providing a shutter car.
An object of the present invention is to prevent a conductive wire from being in the way when painting or cleaning a ten.

Still another object of the present invention is to allow the winding to be carried out in a proper manner even when the cord is pulled by mischief of a child and deviated from its original position. An object of the present invention is to prevent the cord from entering deeply into the shutter case when winding the cord when the lower end of the cord is removed from the seat plate.

[0015]

In order to solve the above-mentioned problems, the technical means employed in the present invention is a shutter curtain which is guided by grooves of guide rails erected on the left and right sides of the opening of the building to move up and down. In a shutter obstacle detection device in which a seat switch constituting a detection switch is provided at a lower end and an opening / closing drive is stopped by detecting an obstacle of the seat switch, (a) a winding direction of a code; And (b) one end side of the cord switch and the other end side of the cord switch disposed in a shutter case provided above the opening. When the shutter curtain is lifted and unwound as the shutter curtain moves up and down by being attached to the cord reel, one end is electrically connected to the detection switch, and the other end is electrically connected to the detection switch. Is a code electrically connected to the opening / closing drive. (C) the cord is wound so that the unwinding and winding portion of the cord is located in an area determined between the groove of the guide rail and the indoor lintel member in a side view. The drill is disposed close to the lintel.

Preferably, a cord is provided at one end of the cord.
A cord mounting member is provided, and the attaching member is detachable from the seat plate switch, and a code of the detection switch extends from the seat plate switch into the inside of the mounting member. And electrically connected to one end of the cord of the cable through a connector. More preferably, the attachment member is composed of a first member and a second member that are detachable from each other, and the first member is detachable with respect to the second member previously mounted on the seat plate. It is a feature.

Preferably, the lintel is provided with a code guide member located below the unwinding and winding portion of the code, and a guide formed on the code guide member. The code is inserted into the groove. More preferably, the guide groove extends in the cord width direction and has a dimension corresponding to the cord width in the cord reel. By doing so, even if the cord is pulled, the cord can be guided well by the cord reel. It is to be noted that the cord does not come into contact with the peripheral edge of the guide groove when the shutter curtain is moved up and down.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described in detail based on an embodiment shown in the drawings. In FIG. 1, reference numeral 1 denotes a shutter device installed in a building opening, and a shutter curtain 2 is formed by connecting a plurality of slats 2a in a vertical direction. The seat switch 3 is connected. The upper end side of the shutter curtain 2 is connected to a take-up shaft 5 extending into a shutter case 4 above the opening, and the opening / closing drive 6 connected to the take-up shaft 5 rotates. The shutter curtain 2 is unwound from the winding shaft 5 by controlling the drive in the forward / reverse rotation by the opening / closing control unit 7,
Or take it up. Guide rails 8 are provided upright at the left and right ends of the opening, and the left and right ends in the width direction of the shutter curtain 2 are guided into the grooves 8a of the guide rails 8 when the opening is opened and closed. It has become.

FIG. 2 is a front view showing an inside view of the shutter device 1 provided with the obstacle detection device according to the present invention, and FIG. 3 is a view showing the inside view of the shutter device 1 provided with the obstacle detection device according to the present invention. FIG. 4 is a side view, in which the lowering of the shutter curtain 2 is stopped by detecting an obstacle by the seat plate switch 3. The seat switch 3 comprises an upper seat plate 3a and a lower seat plate 3b movably suspended from the upper seat plate 3a, and the upper seat plate 3a is shuttered via a vertically extending mounting bar. It is mounted on the lower end of the curtain 2 and has a micro switch and an operating lever on the upper seat plate 3a.
The seat plate switch 3 is formed by incorporating the above.

In the shutter case 4, a lintel member 9a located on the indoor side and a lintel member 9b located on the outdoor side are provided.
A cord reel 10 is disposed in the vicinity of the lintel 9 having the following. The cord reel 10 has a mounting plate 10a opposed to the side view shape, a winding portion 10b provided between the mounting plates 10a, and a coil reel in a direction in which the cord is wound. It has a spring mechanism (not shown) for biasing, and a cord 11 is wound around a winding portion 10b of the cord reel 10 so as to be freely wound. Co
The drill 11 is preferably of a multi-stage winding type, and is of a three-stage winding type in the embodiment.

One end of the cord 11 extends downward and is mounted on the upper seat plate 3a, and is electrically connected to the micro switch of the seat plate switch 3. The other end of the code 11 is connected to the micro switch of the seat plate switch 3. It is mounted on a cord reel 10 and is electrically connected to the opening / closing controller 7 via a wired signal receiver 13. While the shutter curtain 2 is moving down, the lower seat plate 3b
When an obstacle contacts the lower surface of the upper seat plate 3b, the lower seat plate 3b
, The seat plate switch 3 is closed,
A signal is sent to the opening / closing controller 7 via the code 11.

FIG. 8 is a diagram showing the flow of the detection signal. The signal detected by the seat panel switch 3 is received by the wired signal receiver 13 via the code 11 and is transmitted to the wired signal receiver 13. Is sent to the opening / closing controller 7 to stop driving the motor. Such control itself by the detection signal is known.

The cord reel 10 is mounted on a mount 14 provided in the shutter case 4 near the lintel portion 9. In one embodiment, the mounting base 14 is formed by cutting up a mounting piece 14a in a rising shape and a part of the lower end side of the mounting piece 14a to form bent pieces 14b and 14c that are parallel in a stepped shape. It has an F shape, and the mounting piece 14a has
A mounting plate 10a of the drill 10 is mounted by screws or the like, and a shutter cage is provided through a lower bent piece 14b.
The lower folded piece 14c is attached to the lower surface of the
The guide member 15 of the arm 11 is mounted.

The cord reel 10 is located within the width of an area 12 in which the winding thickness of the cord 11 in a side view is determined by the groove 8a of the guide rail 8 and the lintel member 9a on the indoor side. It is arranged close to the lintel portion 9. In other words, the unwinding and rewinding portions of the code 11 are guide rails.
A cord reel 10 is disposed in the vicinity of the lintel 9 so as to be located in an area 12 defined between the groove 8a of the core 8 and the lintel member 9a.

By doing so, the cord 11 is taken up or unwound satisfactorily as the shutter curtain 2 moves up and down, so that the cord 11 can come into contact with the shutter curtain 2. Can be prevented as much as possible. Further, in the embodiment, since the code 11 is wound in multiple stages,
As the length of the unwound cord 11 becomes longer, the unwinding or winding position of the cord 11 is changed to a guide rail.
The shutter curtain 2 and the cord 11 are kept away from each other as far as possible from the groove 8a.

In the present invention, since the cord 11 does not extend in the groove 8a of the guide rail but moves up and down along the surface of the shutter curtain 2, the appearance is taken into consideration. It is preferable that the cord rail 10 is provided as close to the guide rail 8 as possible. In addition, code 11
Is moved up and down along the indoor surface of the shutter curtain 2 for security reasons.

FIG. 4 is a partially enlarged view showing the means for fixing the lower end of the cord 11 to the upper seat plate 3a. The lower end of the cord 11 is connected to the upper seat via a cord mounting member 16. Board 3
It is detachable with respect to a. As shown in FIGS. 5 and 6, the code attaching member 16 includes a first member 16a and a second member 16b which can be detachably attached to the upper seat plate 3a. The first member 16b is configured to be detachably engageable with the member 16b.
A space for accommodating the wiring is formed in a cord mounting member 16 composed of a and the second member 16b.

The first member 16a and the second member 16b are
It is preferably made of a resin, and it is sufficient that both are detachably integrated by providing an engagement piece on one of them and an engagement receiving part on one of them. The second member 16b is the engagement piece 1
The second member 16b fixed to a predetermined portion of the horizontal upper surface of the upper seat plate 3a via the upper seat plate 3a and attached to the upper seat plate 3a
The first member 16a is detachably attached to the first member 16a.

In another embodiment shown in FIG. 6, the cord attaching member 160 is detachably attached to the second member 160b fixed to the upper seat plate 3a by screws and the second member 160b. The first member 160a and the cord 11 extend upward from the first member 160a.

The end of the detection switch cord 17 extending from the micro switch of the seat plate switch 3 extends through the upper surface of the upper seat plate 3a and into the cord mounting member 16. The lower end of the cord 11 and the end of the cord 17 of the detection switch can be electrically connected in the cord mounting member 16 via the connector 18.
Therefore, by removing the first member 16a, the code 11
And the code 17 can be easily disconnected. A terminating resistor 19 is provided in the vicinity of the connecting portion at the lower end of the cord 11 so as to restrict the descent of the shutter curtain 2 when the cord 11 is disconnected.

As described above, the lower end of the cord 11 can be detachably attached to the seat plate 3 via the attachment member 16.
For example, when the shutter curtain 2 is to be painted or cleaned after the shutter device is installed, the code 11 is used.
Is removed from the upper seat plate 3a together with the first member 16a constituting the mounting member 16, and is wound around the cord reel 10.
The code 11 is not in the way, and the code 11 is not dirty or damaged. In a normal state, the connecting portion between the cord 11 and the cord 17 is protected by the mounting member 16.

The code guide member 15 is a flat plate member extending horizontally, and
And a guide groove 15a extending in the winding direction of the coil 11 (the width direction of the winding portion 10b of the core reel 10). The guide groove 15a is provided so as to be located substantially immediately below the feeding portion of the cord 11, and preferably has a length substantially equal to the winding width of the cord 11. Further, the dimension of the guide groove 15a is formed to be smaller than the dimension of the first member 16a constituting the cord mounting member 16. A slit 15 is provided in the guide groove 15a.
b is formed, and the attaching member 1 is
The cord 11 can be positioned in the guide groove 15a via the slit 15b even when the cable 6 is mounted.

As a general rule, the cord 11 does not come into contact with the periphery of the guide groove 15a when the cord 11 is normally unwound or wound. The guide member 15 is configured such that the guide groove 15a regulates the movement of the code 11 so that even if a child pulls the code 11, the code 11 can be moved.
Are prevented from laterally shifting beyond the width of the cord reel 10, so that the winding and unwinding of the cord 11 can be performed in an orderly manner. When the cord 11 is taken up when the lower end of the cord 11 is detached from the upper seat plate 3a, the first member 16a of the mounting member 16 provided at the lower end of the cord 11 is connected to the guide member 15. Because it touches,
It is possible to prevent the door 11 from getting deeply into the shutter case 4.

[0034]

According to the present invention, a shutter car which is guided up and down by a groove of a guide rail erected on the left and right of the opening of the building.
In a shutter obstacle detecting device in which a seat switch constituting a detection switch is provided at a lower end of a tenn and an opening / closing drive is stopped by detecting an obstacle of the seat switch, (a) winding of a code; A cord reel which is provided in a shutter case provided above the opening and provided with a biasing means for taking direction; (b) one end of the cord reel is connected to the seat plate switch; Side is attached to the cord reel so that the shutter curtain is wound up and down as the shutter curtain moves up and down. One end is electrically connected to the detection switch, and the other end is electrically connected to the detection switch. The end side comprises a cord electrically connected to the opening / closing drive, and (c) unwinding the cord;
The cord reel is arranged close to the lintel so that the winding portion is located in a region determined between the groove portion of the guide rail and the indoor lintel member in side view. Although it is a shutter obstruction detection device using a code, the code can make contact with the shutter curtain when the shutter curtain moves up and down. In addition to reducing the number, the cord can be unwound or wound well.

According to the second aspect of the present invention, when the shutter curtain is to be painted or cleaned after the shutter device is installed, the cord and the mounting member are removed from the seat plate switch together with the shutter member. If it is wound around a cord, the cord will not be in the way, and the cord will not be dirty or damaged, and the cord-to-cord connecting part will be attached. It can be protected by a member.

According to the third aspect of the present invention, the movement of the cord in the case where the cord is inadvertently pulled can be restricted in the guide groove. Winding and unwinding can be performed orderly. Also, at the time of rewinding the cord when the lower end of the cord is detached from the seat plate switch, the mounting member provided at the lower end of the cord comes into contact with the guide member. This prevents the case from getting deeply into the case.

[Brief description of the drawings]

FIG. 1 is a front view showing a schematic configuration of a shutter device.

FIG. 2 is a front view showing an inside view of a shutter device provided with the obstacle detection device according to the present invention.

FIG. 3 is a side view showing an inside view of a shutter device provided with the obstacle detection device according to the present invention.

FIGS. 4A and 4B are partially enlarged views showing one end of the code and a seat plate switch, wherein FIG. 4A is a side view, FIG.
(C) is a front view.

FIG. 5 (a) is a view showing a cord mounting member,
(B) shows a first member constituting the cord attaching member, and (c) shows a second member constituting the cord attaching member.

6A and 6B are views showing a cord mounting member according to another embodiment, wherein FIG. 6A is an overall perspective view, FIG. 6B is a perspective view of a first member, and FIG. It is a perspective view.

FIG. 7 is a plan view showing a code guide member.

FIG. 8 is a block diagram illustrating control for stopping the descent of a shutter.

[Explanation of symbols]

2 shutter curtain 3 seat plate switch 4 shutter case 8 guide rail 8a guide rail groove 9 lintel 9a indoor lintel member 10 cord reel 11 cord 12 guide rail groove Area determined between the lintel and the indoor lintel member 15 Code guide member 16 Code mounting member 17 Code of detection switch

Claims (3)

[Claims] A seat plate switch constituting a detection switch is provided at a lower end of a shutter curtain which is guided by a groove of a guide rail provided upright on the left and right sides of an opening of a building, and an obstacle of the seat plate switch is provided. An obstruction detecting device for a shutter in which an opening / closing drive device is stopped by detection, (a) a device for urging a cord in a winding direction and a shutter case provided above the opening. And (b) lifting and lowering of the shutter curtain by mounting one end to the seat plate switch and the other end to the cord reel. It is configured to be wound up and unwound with, one end side is electrically connected to the detection switch,
The other end comprises a cord electrically connected to the opening / closing drive, and (c) the unwinding and rewinding portion of the cord has a groove and a groove of the guide rail in a side view. An obstruction detection device for a shutter, wherein the cord reel is disposed close to the lintel so as to be located in a region determined between the lintel and the inside lintel. 2. A cord attaching member is provided at one end of the cord, and the attaching member is detachable from a seat plate switch, and the cord of the detection switch is attached to the seat plate. 2. The shutter according to claim 1, wherein the shutter extends from the switch inside the mounting member and is electrically connected to one end of the cord of the cord reel via a connector. Obstacle detection device. 3. The unwinding of the cord in the lintel,
A code guide member is provided below the winding portion, and the code guide member is provided in a guide groove formed in the code guide member.
3. The shutter obstacle detecting device according to claim 1, wherein the shutter is inserted.