JP2004150089A - Opening/closing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow wiring without causing damage by the contact of a wiring means of a lead wire or the like with other members. <P>SOLUTION: Wiring 11a-11c for transmitting detection signals from a detecting means to a recognition means is led into guide means 3, 4 using a fixed pulley 18a so as not to pass between an opening/closing means 2 and the guide means 3, 4. Consequently, there is no contact of the wiring 11a-11c between the opening/closing means 2 and the guide means 3, 4, nor causing any damage. The wiring 11a-11c led into the guide means 3, 4 by the fixed pulley 18a, does not bend because of downward load applied thereto by movable pulleys 18b provided with weight means 19, 60. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention includes a means for detecting the state of the opening / closing means such as an obstacle detecting means for detecting an obstacle being opened / closed by a seat plate switch at a closing end provided on the opening / closing means such as a shutter curtain. The present invention relates to a switchgear, and more particularly, to a switchgear having improved wiring means for transmitting a detection signal detected by a detection means to a location other than the switchgear.
[0002]
[Prior art]
The opening and closing device closes the opening by moving an opening and closing member such as a shutter curtain installed at an opening of a structural body including a building such as a house, a building, a factory, a warehouse, and a garage. The opening / closing device gradually pulls out and lowers a shutter curtain, which is an opening / closing member, from above the opening to close the entire opening. A seat plate switch is provided on the closing end side of the opening / closing member. If this seat plate switch contacts any obstacle during the opening / closing operation, the control device stops the opening / closing operation of the opening / closing member itself in order to avoid pinching of the obstacle or the like, in accordance with the obstacle detection signal. The operation of the opening / closing member is controlled so as to perform the operation.
[0003]
As a method for transmitting an obstacle detection signal detected by the seat plate switch to the control device, a wireless method and a wired method have been conventionally proposed. In the case of the wireless system, a battery or the like for driving the signal generator is required on the side of the seat switch, and maintenance of the battery is troublesome. On the other hand, in the case of the wired system, since it is only necessary to electrically connect the seat plate switch and the control device using a lead wire or the like, there is no need to provide a battery or the like and maintenance is unnecessary. It is advantageous.
[0004]
In the case of the wired system, the distance between the seat switch and the control device is significantly different between the case where the opening / closing member is in the open state and the case where the open / close member is in the closed state. The length of the lead wire must be lengthened, shortened, or varied in accordance with the distance between the seat switch and the control device so as not to bend or come into contact with other members. Therefore, conventionally, the lead wire is wound directly on the winding reel biased in the winding direction by a spring, and the length of the lead wire is appropriately adjusted according to the opening / closing operation of the shutter curtain. Things have been suggested. Since the lead wire is wound directly on the reel, the winding diameter of the reel itself may increase depending on the length and thickness of the lead wire, and the entire winding mechanism is placed in the case that houses the shutter curtain. In some cases it was difficult to install. Therefore, a structure in which a lead wire is housed in a rail is described in Patent Document 1 (Japanese Utility Model Laid-Open No. 2-134299).
[Patent Document 1]
JP-A-2-134299
[Problems to be solved by the invention]
Japanese Patent Application Laid-Open No. H11-163873 discloses that a movable pulley is housed in a rail with a stationary pulley and a moving pulley interposed at an intermediate portion of a lead wire, and is moved up and down in the rail. However, the one described in Patent Literature 1 has a structure in which a lead wire routed from a seat plate switch, which is an obstacle detection unit, to a stationary pulley is disposed between the shutter curtain and the rail member. When the shutter curtain rises and descends, the shutter curtain may come into contact with the rail member to cause damage to the lead wire or cause a worst-case disconnection, which is not preferable.
[0006]
SUMMARY OF THE INVENTION It is an object of the present invention to provide a switchgear capable of wiring without a wiring means such as a lead wire coming into contact with another member and being damaged.
[0007]
[Means for Solving the Problems]
The opening / closing device according to claim 1, wherein the opening / closing means operates to open / close the opening, a guide means for guiding the opening / closing operation of the opening / closing means, and detects a state of the opening / closing means by moving together with the opening / closing means. Detection means for outputting the detection signal, recognition means for recognizing the state of the opening and closing means based on the detection signal, wiring means for transmitting the detection signal detected by the detection means to the recognition means, The wiring means is introduced into the guide means using fixed guiding means so as not to pass between the opening / closing means and the guide means, and the introduced wiring means is used as movable guiding means in the guide means. Connected to the recognition means, provided with a weight means in the movable guiding means, applying a downward load to the movable guiding means so that the wiring means does not bend, and the open / close state of the opening / closing means A wire routing means configured to move the movable guiding means and the weight means vertically in the guide means in accordance with a distance between the detection means and the recognition means, which varies in response to the change. It is provided. The opening / closing means is configured by an opening / closing member such as a shutter curtain that opens and closes an entrance or an opening or an opening of an internal passage or space in a structure such as a building, a house, a factory, and a warehouse. . When the opening / closing means is a shutter curtain, for example, the shutter curtain is housed above an opening of a building or the like, and the shutter curtain descends along a guide means via a lintel to close the opening. In addition, there is a type in which the opening / closing means is housed at the side of the opening and opens and closes by a horizontal pulling method, or is housed below the opening and opens and closes by an ascending method. The detecting means is provided in the opening / closing means and moves together with the opening / closing means. For example, an obstacle detecting means (for example, an obstacle detecting means for detecting the presence of an obstacle on or near a moving path during the opening / closing movement of the opening / closing member) , A seat plate switch), etc., for detecting the open / close position of the opening / closing member, a heat detector for detecting the heat of the opening / closing member, and for detecting the locked / unlocked state of the opening / closing member. There. Therefore, the detection signal detected by the detection means is transmitted to the recognition means provided separately from the opening / closing means via the wiring means. The recognizing means recognizes the state of the opening / closing means according to the detection signal and performs processing according to the state. For example, when the detecting means is an obstacle detecting means and the detection signal is taken into the recognizing means, the recognizing means performs an obstacle avoiding operation or the like. The recognizing means only recognizes the detection signal from the obstacle detecting means, and transmits the result of the recognition to another control device or the like, and causes the control device to execute an obstacle avoiding operation or the like. It may be something. At this time, the wiring means for transmitting the detection signal from the detection means to the recognition means is introduced into the guide means using the fixed guiding means so as not to pass between the opening / closing means and the guide means. The inside of the guide means may be the inside of the guide rail itself, or may be the inside of a structure provided along the guide rail and protected and closed by a cover or the like. Thereby, the wiring means does not come into contact between the opening / closing means and the guide means, and is not damaged. Further, the wiring means introduced into the guide means by the fixed guide means is not bent by a downward load applied by the movable guide means provided with the weight means. Even when the distance between the detecting means and the recognizing means changes according to the open / close state of the opening / closing means, a constant tension is always applied to the wiring means so that the wiring means does not bend and the movable guiding means and the weight The means is moved up and down in the guide means, and the length of the wiring means from the fixed guiding means to the detecting means is appropriately adjusted. The fixed guiding means and the movable guiding means are configured to guide and guide the wiring means by rotation, such as a roller or a pulley, or to guide and guide the wiring means by a non-rotating but slippery member. .
[0008]
According to a second aspect of the present invention, in the opening and closing device according to the first aspect, the weight means is configured to be capable of deforming the entire shape. This relates to the configuration of the weight means. When the weight means is formed of one solid body whose entire shape is not deformable, it may be difficult to store the weight means in the guide means. Therefore, the weight means is configured so that the entire shape can be deformed, thereby facilitating storage in the guide means. Specific examples of such an entire shape that can be deformed include a chain constituted by an aggregate of a plurality of members such that the entire shape can be deformed and a plurality of small pieces of weights connected by a ring, sand, pebbles, cobblestones It is also conceivable to use a bag body in which small glass or the like is sealed, or a clay in which the entire shape can be deformed by itself.
[0009]
According to a third aspect of the present invention, in the opening / closing device according to the second aspect, the weight unit is configured by a chain linked to each other. This is one in which the weight means is constituted by a chain. Since the entire shape of the chain can be freely deformed by link connection, the chain can be easily housed by being deformed into a shape that can be easily housed when housed in the guide means.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a preferred embodiment of a switchgear provided with an obstacle detection device according to the present invention will be described with reference to the accompanying drawings. In this embodiment, a shutter device that is controlled to open and close up and down as an opening and closing device will be described as an example. FIG. 1 is a diagram showing a schematic configuration of a shutter device provided with the obstacle detection device of the present invention. FIG. 2 is a perspective view showing a part of the obstacle detection device and the wiring means shown in FIG.
[0011]
This shutter device is provided in an opening of a building, and basically includes a shutter case 1, a shutter curtain 2 as opening / closing means, guide rails 3 and 4, guide means, a winding shaft 5, a chain 6, a motor. And the like, and a control device 8 as recognition means.
[0012]
The guide rails 3 and 4 are provided at both ends of the opening of the building so as to guide both ends of the shutter curtain 2, and have a substantially U-shaped cross-section crossing from the lintel to the floor surface 21. It is composed of a member having a guide groove. The shutter curtain 2 moves up and down along the guide grooves of the guide rails 3 and 4 to open and close the opening. The winding shaft 5 is rotatably provided in the shutter case 1, and winds and rewinds the shutter curtain 2. The chain 6 connects a driving sprocket provided on a rotation shaft of the switchgear 7 and a driven sprocket provided on a rotation shaft of the winding shaft 5. Accordingly, the rotational driving force of the switch 7 is transmitted to the take-up shaft 5 through the chain 6, and when the switch 7 rotates, the take-up shaft 5 rotates through the chain 6 to open and close the shutter curtain 2. Is controlled.
[0013]
The control device 8 is supplied with power via a power supply line (not shown). The control device 8 is indirectly based on a control signal corresponding to the operation state of each operation button on an operation switch (not shown), or indirectly based on, for example, a control signal for disaster prevention such as a fire. Then, the rotation of the shutter 7 is controlled, and the rotation of the switch 7 is controlled based on a detection signal from the obstacle detection device to stop the lowering operation of the shutter curtain 2 as an obstacle avoiding operation. The shutter curtain 2 may be controlled not only to stop the lowering operation but also to raise the shutter curtain 2 so that the detection signal is not output. For example, other operations such as reducing the lowering speed without stopping the shutter curtain 2 may be performed. May be controlled.
[0014]
The obstacle detecting device basically includes a seat plate switch 10 as an obstacle detecting means, cords 11a to 11c as wiring means, a fixed pulley 18a as a fixed guiding means, a movable pulley 18b as a movable guiding means, and a weight means. And a wire routing means comprising a flat bar 19.
[0015]
The seat plate switch 10 is provided at a lower portion which is a closing tip side of the shutter curtain 2. Since the seat plate switch 10 is a known one, a detailed description thereof will be omitted here. However, basically, an upper seat plate, a lower seat plate held movably up and down with respect to the upper seat plate, and a lower seat plate It is configured to include a switch such as a micro switch that is turned on / off in accordance with the vertical movement. When the lower seat plate contacts the obstacle and moves upward, the seat switch 10 outputs a detection signal indicating that the switch is turned on and the obstacle is detected. The cords 11 a to 11 c are wiring means for transmitting a detection signal from the seat switch 10 to the control device 8. The cord 11a is wired so as to form a predetermined angle with the direction along which the seat plate switch 10 moves up and down. That is, they are provided so as to form a predetermined angle with respect to the guide rails 3 and 4 (a predetermined angle with respect to the floor surface 21). Note that the cord 11a does not necessarily have to form a predetermined angle, and may be provided so as to be parallel to the ascending and descending directions, that is, parallel to the guide rails 3 and 4 (vertical with the floor surface).
[0016]
The fixed pulley 18a converts the cord 11a into a cord 11b in a direction parallel to the longitudinal direction of the guide rail 3. The movable pulley 18b bends by changing the direction of the cord 11b into a cord 11c in a direction parallel to the longitudinal direction of the guide rail 3 and opposite to the cord 11b, and is introduced into the control device 8 via the cord fixing plate 20. I do. The flat bar 19 supplies a constant tensile force to the cords 11a to 11c. The movable pulley 18b and the flat bar 19 are integrally connected (coupled) by a fixing tool such as a screw or a rivet. Further, in the drawing, the movable pulley 18b is provided so as to be separable above the flat bar 19; however, the present invention is not limited to this, and the movable pulley 18b may be provided integrally within the flat bar 19. By housing the movable pulley 18b, the flat bar 19, and the like in the guide rail 3 in this manner, it is not necessary to separately provide an installation location. In this embodiment, since the movable pulley 18b and the flat bar 19 are housed in the guide rail 3 and move up and down, there is no need to separately provide an installation location. Further, since the cord 11a is connected to the seat plate switch 10 at a predetermined angle with respect to the guide rail 3, there is no possibility of contact interference between the shutter curtain 2 and the guide rail 3, and a stable obstacle is prevented. Detection can be performed.
[0017]
FIG. 3 is a diagram showing details of a wiring routing means including a cord, a fixed pulley, a movable pulley, and a flat bar in FIG. FIG. 4 is a perspective view showing a part of FIG. The base 30 is attached to the lintel with fixings such as screws and rivets. The fixed pulley 18a is rotatably attached to the base 30. The cords 11a and 11b are moved along guide grooves of the fixed pulley 18a by guide rollers 31 and 32. The connector 11d is attached to the end of the cord 11a and is connected to the seat switch 10. The connector 11e is attached to the tip of the cord 11c and is connected to the control device 8. The cord 11c is fixed to the base 30 via a rubber bush 33. The cord 11a is fixed to the seat switch 10 via a rubber bush 34.
[0018]
FIG. 5 is a diagram showing a state where the movable pulley and the flat bar shown in FIG. 3 are stored in the rail. When the movable pulley 18 b and the flat bar 19 are stored in the rail 3, the flat bar 19 is long, so that the flat bar 19 and the movable pulley 18 b are not provided unless the winding shaft 5 is located at a high position separated from the lower surface of the shutter case 1. May not be stored in the rail 3 in some cases. Therefore, it is preferable that the movable pulley and its weight means can be stored in the rail 3 even when the take-up shaft 5 is located at a low position close to the lower surface of the shutter case 1 without being so separated. Hereinafter, an embodiment in such a case will be described.
[0019]
FIG. 6 is a diagram showing another embodiment of the shutter device provided with the obstacle detection device of the present invention. FIG. 7 is a diagram showing details of the wiring routing means including the cord, the fixed pulley, the movable pulley, and the chain-type weight of FIG. FIG. 8 is a front view of FIG. As described above, when the flat bar 19 is housed in the rail 3, the winding shaft 5 must be at a high position separated from the lower surface of the shutter case 1 by a sufficient distance. Therefore, as shown in FIG. 6, instead of the flat bar 19, a chain-type weight 60 serving as a weight means is used. The overall weight of the chain-type weight 60 is substantially the same as that of the flat bar 19, and the shape thereof can be flexibly deformed. That is, the chain-type weight 60 is configured so that the entire shape thereof can be deformed by an aggregate of a plurality of members. Therefore, even when the winding shaft 5 is located at a low position close to the lower surface of the shutter case 1 without being so separated, the chain-type weight 60 can be compactly deformed and housed in the rail 3. When storing the chain-type weight 60 in the rail 3, the chain-type weight 60 may be inserted from the upper surface side of the rail 3, or the chain-type weight 60 may be moved laterally from left to right in FIG. It may be stored. In FIG. 6, a chain-type weight has been described as an example in which the entire shape can be deformed by an aggregate of a plurality of members. Needless to say, a material (for example, a bag in which sand, pebble, cobblestone, pebble glass, or the like is sealed, or clay in which the entire shape can be deformed by itself) may be used. In FIG. 6, the case where both ends of the chain-type weight 60 are connected to the movable pulley 18b is described. However, only one end of the plurality of chain-type weights may be connected to the movable pulley 18b. As described above, even when the winding shaft 5 is located at a low position close to the lower surface of the shutter case 1 without being so separated from the lower surface, the movable pulley and its weight means can be stored in the rail 3. The overall size of the shutter case 1 can be reduced in size.
[0020]
In the above-described embodiment, the case where the shutter curtain is extended from above by the descending method has been described, but the same can be applied to the case where the shutter curtain is extended by the ascending method. Further, the present invention can be similarly applied to a case where the shutter-shaped opening / closing member is fed out by a horizontal pulling method or by a horizontal method. Examples of the opening / closing device include a shutter device, a blind device, a roll screen device, a hanging device, a sliding door device, a moving partition device, an awning device, and a waterproof plate device. Further, the material of the opening / closing member as the opening / closing means may be any material as long as it is suitable for the purpose of use. Specifically, it can be made of metal, wood, plastic, cloth, or a combination thereof.
[0021]
In the above-described embodiment, the seat plate switch has been described as an example of the detection means. This seat plate switch detects an obstacle by contacting the obstacle. An obstacle may be detectable. For example, an infrared light emitting element and a light receiving element are provided on both sides of the opening / closing means to detect an obstacle in a non-contact manner, and an obstacle is detected when the infrared light is blocked. There is. Further, the detecting means may be a means for detecting the open / close position of the shutter curtain, a heat detector for detecting the temperature of the shutter curtain itself, or a means for detecting the locked / unlocked state of the shutter curtain.
[0022]
In the above-described embodiment, the guide rails 3 and 4 fixedly provided on both sides of the shutter curtain have been described. However, the present invention is not limited to this, and one side is movably installed in conjunction with the extension operation of the shutter curtain. Even if the other is a movable rail type guide rail and the other is a fixedly provided guide rail, the above-described wiring routing means is provided on the fixedly provided guide rail side. Is similarly applicable.
[0023]
【The invention's effect】
As described above, according to the opening / closing device of the present invention, there is an effect that the wiring means such as a lead wire can be wired without being damaged by contact with other members.
[Brief description of the drawings]
FIG. 1 is a diagram showing a schematic configuration of a shutter device provided with an obstacle detection device of the present invention; FIG. 2 is a perspective view showing a part of the obstacle detection device and wiring means of FIG. 1;
FIG. 3 is a diagram showing details of a wiring routing means including a cord, a fixed pulley, a movable pulley, and a flat bar in FIG. 1;
FIG. 4 is a perspective view showing a part of FIG. 3;
FIG. 5 is a view showing a state where the movable pulley and the flat bar shown in FIG. 3 are stored in a rail.
FIG. 6 is a diagram showing another embodiment of the shutter device provided with the obstacle detection device of the present invention.
FIG. 7 is a diagram showing details of a wiring routing means including a cord, a fixed pulley, a movable pulley, and a chain-type weight of FIG. 6;
FIG. 8 is a front view of FIG. 6;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Shutter case 2 ... Shutter curtain 3, 4 ... Guide rail 5 ... Winding shaft 6 ... Chain 7 ... Opening / closing device 8 ... Control device 10 ... Seat switch 11a-11c ... Cord 18a ... Fixed pulley 18b ... Movable pulley 19 ... Flat bar 20: Cord fixing plate 21: Floor surface 60: Chain-type weight

Claims (3)

Opening and closing means operable to open and close the opening;
Guide means for guiding the opening and closing operation of the opening and closing means,
Detecting means for detecting a state of the opening and closing means by moving together with the opening and closing means and outputting a detection signal thereof;
Recognition means for recognizing a state of the opening / closing means based on the detection signal;
Wiring means for transmitting the detection signal detected by the detection means to the recognition means,
The wiring means is introduced into the guide means using fixed guiding means so as not to pass between the opening / closing means and the guide means, and the introduced wiring means is used as movable guiding means in the guide means. Connected to the recognition means, and provided with a weight means in the movable guiding means to apply a downward load to the movable guiding means so as not to bend the wiring means, and to open / close the opening / closing means. A wire routing means configured to move the movable guiding means and the weight means vertically in the guide means in accordance with a distance between the detection means and the recognition means, which varies in response to the change. A switchgear characterized by comprising: 2. The opening and closing device according to claim 1, wherein the weight unit is configured to be capable of deforming an entire shape. In claim 2,
The switchgear is characterized in that the weight means is constituted by chains linked to each other.

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