JP2005048409A - Opening/closing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To quickly restore a wiring means, even if a movable guiding means and a weight means are left in a guide means by cutting of the wiring means such as a lead wire laid in the guide means such as a rail, by using the movable guiding means such as a running block and the weight means such as a weight. <P>SOLUTION: When the wiring means is cut for some cause, since the movable guiding means and the weight means are left in the guide means, a new movable guiding means and a weight means are installed in a state of leaving these means as they are. The movable guiding means is preferable in about half of the total length of the guide means in an actual movable range of the movable guiding means and the weight means since the wiring means is bent in the guide means, and a lower side half exists as an unrelated space noninterfering with the movable guiding means and the weight means. Thus, when the wiring means is cut, the wiring means is quickly restored by replacing the movable guiding means and the weight means with a complete set, and the dropped means can be left as it is in a lower part of the guide means. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is provided in an opening / closing means such as a shutter curtain, and detects the state of the opening / closing means during an opening / closing operation, such as an obstacle detection means for detecting an obstacle present on or near the movement path. In particular, the present invention relates to an opening / closing device in which the routing means of wiring means for transmitting a detection signal detected by the detection means to a place other than the opening / closing means is improved.
[0002]
[Prior art]
Opening and closing device closes the opening by moving the opening and closing members such as shutter curtains installed in the opening of construction and structures including buildings such as houses, buildings, factories, warehouses, garages, etc. in the closing direction It is. The opening / closing device gradually closes and opens the shutter curtain, which is an opening / closing member, from the upper part of the opening. A seat plate switch is provided on the closing tip side of the opening / closing member. If the seat switch touches any obstacle during the opening / closing operation, the control device stops the opening / closing operation of the opening / closing member itself or avoids the avoidance operation in order to avoid the obstacle being caught in accordance with the obstacle detection signal. The operation of the opening / closing member is controlled so as to perform the above.
[0003]
Conventionally proposed devices that transmit obstacle detection signals detected by the seat switch to the control device include wireless and wired methods. In the case of the wireless system, a battery for driving the signal generator is required on the seat plate switch side, and maintenance is required. On the other hand, in the case of the wired system, it is only necessary to electrically connect the seat plate switch and the control device using a lead wire or the like. It is advantageous.
[0004]
In the case of the wired system, the distance from the seat plate switch to the control device differs greatly between when the open / close member is in the open state and when it is in the closed state. Therefore, the length of the lead wire must be lengthened, shortened, or varied in accordance with the distance between the seat plate switch and the control device so as not to bend or come into contact with other members. Therefore, conventionally, the lead wire is directly wound on the take-up reel urged in the winding direction by the spring, and the length of the lead wire is appropriately adjusted according to the opening / closing operation of the shutter curtain. Things have been proposed. This is because the lead wire is directly wound around the reel, so the reel winding diameter 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. It was sometimes difficult to install. Therefore, Patent Document 1 discloses a configuration in which a lead wire is accommodated in a rail.
[Patent Document 1]
Japanese Utility Model Publication No. 2-134299
[0005]
[Problems to be solved by the invention]
In Patent Document 1, a static pulley and a moving pulley are interposed in an intermediate portion of a lead wire so that the moving pulley and its weight are accommodated in the rail and moved up and down in the rail. . However, in the device described in Patent Document 1, the lead wire routed from the seat plate switch, which is an obstacle detection unit, to the static pulley is disposed between the shutter curtain and the rail member (across). For this reason, the shutter curtain and the rail member may come into contact with each other when the shutter curtain is raised and lowered, causing damage to the lead wire or the worst disconnection, which is not preferable. Furthermore, since the moving pulley and the weight hung on it exist in the rail, when the lead wire is severely broken, the moving pulley and the weight are left in the rail. It was necessary to reattach the pulley and weight to the replaced lead wire. In addition, the rail itself can be removed from the side wall of the opening in order to take out the moving pulley and the weight from the rail, or when the rail cannot be removed, the take-out port from which the moving pulley and the weight can be taken out from the side of the rail. It was necessary to provide.
[0006]
It is an object of the present invention to use a movable guiding means or weight means by cutting a wiring means such as a lead wire wired in a guiding means such as a rail using a movable guiding means such as a moving pulley or a weight means such as a weight. An object of the present invention is to provide an opening / closing device capable of quickly recovering wiring means even when left inside.
[0007]
[Means for Solving the Problems]
The opening / closing device according to claim 1 detects opening / closing means operating to open / close the opening, guide means for guiding the opening / closing operation of the opening / closing means, and movement of the opening / closing means to detect the state of the opening / closing means. Detecting means for outputting the detection signal; recognition means for recognizing the 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 a 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 a movable guiding means within the guide means. Bent and connected to the recognizing means, and a weight means is provided on the movable guiding means so that a downward load is applied to the movable guiding means so that the wiring means does not bend. Wiring routing means configured to move the movable guiding means and the weight means in the vertical direction in the guide means in accordance with the distance between the detecting means and the recognizing means that change accordingly. When the movable guiding means and the weight means are left in the guide means by cutting the wiring means, a new movable guiding means and weight means are left in a state where they are left as they are. The guide means is separately provided so as to be movable in the vertical direction.
[0008]
Opening and closing means is composed of opening and closing members such as shutter curtains that open and close doorways and windows, or openings such as internal passages and spaces in buildings and structures such as buildings, houses, factories, and warehouses. Is done. When the opening / closing means is a shutter curtain, for example, the shutter curtain is housed in an upper portion of an opening such as a building, and the shutter curtain descends along the guide means via a lintel or the like to close the opening. In addition to this, there is a type in which the opening / closing means is housed in the side portion of the opening and opened and closed by a horizontal pulling method, or is housed in the lower part of the opening and moved in an ascending manner. The detection means is provided in the opening / closing means and moves together with the opening / closing means. For example, an obstacle detection means (for example, an obstacle detection means for detecting the presence of an obstacle on or near the movement path during the opening / closing movement of the opening / closing member) , Seat plate switch), the opening / closing position of the opening / closing member, the heat detector detecting the heat of the opening / closing member, and the locking / unlocking state of the opening / closing member There is. 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 unit recognizes the state of the opening / closing unit in accordance with the detection signal, and performs processing corresponding to the state. For example, when the detection means is an obstacle detection means and the detection signal is taken into the recognition means, the recognition means performs an obstacle avoidance operation or the like. The recognizing unit only recognizes the detection signal from the obstacle detecting unit, and transmits the recognition result to another control device or the like so that the obstacle avoiding operation or the like is executed by the control device or the like. It may be a thing. 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 that is provided substantially integrally along the guide rail and is protected and closed by a cover or the like. Moreover, you may make it move on the special rail provided along the circumference | surroundings of an opening part. This prevents the wiring means from contacting between the opening / closing means and the guide means, thereby preventing damage. Further, the wiring means introduced into the guide means by the fixed guiding means is applied with a load downward by the movable guiding means provided with the weight means so as not to be bent. Therefore, when the wiring means is cut for some reason, the movable guiding means and the weight means fall in the guide means and are left there. In such a case, according to the present invention, the new movable guide means and weight means can be moved in the vertical direction in the guide means by using the wiring means while leaving the left movable guide means and weight means as they are. It was made to attach to. That is, the movable guiding means and the weight means move in the vertical direction in the guide means, but the movable guiding means has the wiring means bent in the guide means. Is about half of the total length of the guide means. As a result, the lower half of the guide means can exist as an unrelated space that does not interfere with the movable guiding means and the weight means moving within the guide means. Therefore, when the wiring means is cut, it is possible to replace the set of the movable guiding means and the weight means, and leave the dropped one in the lower part in the guide means.
[0009]
According to a second aspect of the present invention, there is provided an opening / closing apparatus according to the first aspect, wherein the movable guiding means and the weight means are left in the guide means when the movable guiding means and the weight means are fully closed. The length of the wiring means is adjusted so that the weight means is positioned at the upper end of the guide means. This is a necessary condition for allowing the lower half of the guide means to exist as an unrelated space that does not interfere with the movable guiding means and the weight means. That is, when the movable guiding means and the weight means are located at the upper end of the guide means with the opening / closing means fully closed, the guide means even if the opening / closing means is fully opened and the movable guiding means and the weight means move downward. It is because it will not cross over the lower half. If the number of movable guide means and weight means left in the guide means due to the cutting of the wiring means is small or known, the movable guide means and weight means in the fully closed state depending on the number and the like. The length of the wiring means may be adjusted so that the position of the wiring means is located below the upper end of the guide means.
[0010]
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Preferred embodiments of a switchgear according to the present invention will be described below with reference to the accompanying drawings. In this embodiment, a shutter device that is controlled to be opened and closed vertically will be described as an example of the opening and closing device. FIG. 1 is a diagram illustrating a schematic configuration of a shutter device including an obstacle detection device.
[0012]
This shutter device is provided in an opening of a building, and basically includes a shutter case 1, a shutter curtain 2, guide rails 3 and 4, a winding shaft 5, a chain 6, a switch 7 such as a motor, and a control device. 8 and so on.
[0013]
The guide rails 3 and 4 are provided on both side walls of the opening of the building so as to guide both ends of the shutter curtain 2, and the cross-sectional shape spanned from the lintel portion 9 to the floor surface 21 is substantially U-shaped. It is comprised with the member which has this 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 up or rewinds the shutter curtain 2. The chain 6 connects a main sprocket provided on the rotary shaft of the opening / closing machine 7 and a driven sprocket provided on the rotary shaft of the winding shaft 5. Accordingly, the rotational driving force of the opening / closing machine 7 is transmitted to the winding shaft 5 side via the chain 6, and when the opening / closing machine 7 rotates, the winding shaft 5 rotates via the chain 6, and the shutter curtain 2 is opened and closed. Is to be controlled.
[0014]
The control device 8 is supplied with power via a power supply line (not shown). The control device 8 is directly based on a control signal corresponding to the operation state of each operation button on an operation switch (not shown), or indirectly based on a control signal for disaster prevention at the time of a fire, for example. The rotation of the opening / closing device 7 is controlled, and the rotation of the opening / closing device 7 is controlled based on the detection signal from the obstacle detection device to stop the lowering operation of the shutter curtain 2 as an obstacle avoiding operation. . In addition to stopping the lowering operation, the shutter curtain 2 may be controlled to move up so that the detection signal is not output, and other operations, for example, the operation of decreasing the lowering speed without stopping the operation. You may control to perform.
[0015]
FIG. 2 is a perspective view showing a part of the obstacle detection device and the wiring means shown in FIG. FIG. 3 is a front view of FIG. 2 viewed from a direction perpendicular to the opening surface. FIG. 4 is a diagram showing a wiring state around the seat plate of FIG. 2, and is a diagram showing a part of the seat plate portion removed. FIG. 5 is a side view of the seat plate portion of FIG. 4 viewed from the right side. The obstacle detection device basically includes a seat plate switch 10 serving as an obstacle detection means, cords 11a to 11c serving as wiring means, a fixed pulley 18a serving as a fixed guiding means, a movable pulley 18b serving as a movable guiding means, and weight means. It is comprised from the wiring management means which consists of the flat bar 19 used.
[0016]
The seat plate switch 10 is provided in a lower part on the closed front end side of the shutter curtain 2. Since the seat plate switch 10 is well known, detailed description thereof is omitted here, but basically, as shown in FIG. 5, the upper seat plate 100 and the upper seat plate 100 are held so as to be vertically movable. The lower seat plate 101, the pressing portion 102 attached to the lower seat plate 101, and the rotating portion 103 rotate as the lower seat plate 101 (that is, the pressing portion 102) moves up and down. An on / off operation is configured. That is, the seat plate switch 10 outputs a detection signal indicating that the micro switch 105 is turned on and the obstacle is detected when the lower seat plate 101 contacts the obstacle and moves upward. . The cords 11 a to 11 c are wiring means for transmitting a detection signal from the seat plate switch 10 to the control device 8. As shown in FIG. 3, the cord 11a is wired so as to form a predetermined angle φ1 with the direction along the rising and lowering of the seat plate switch 10. That is, the guide rails 3 and 4 are provided so as to form a predetermined angle φ1 (a predetermined angle with respect to the floor 21).
[0017]
As shown in FIG. 4, the connector 11 d provided at the tip of the cord 11 a is accommodated in the wiring cover 40 via the rubber bush 34. At this time, the cord 11 a is fixed in contact with the rubber bush 34 that is ball-tied in the wiring cover 40 and inserted into the notch 40 c of the wiring cover 40. The connector 11 d is connected in the wiring cover 40 to the connector of the cord 106 connected to the microswitch 105. The cord 106 connected to the microswitch 105 is bent from the right end of the upper seat plate 100 in FIG. 4 and wired to the upper portion of the upper seat plate 100, and is connected to the connector 11d at the upper portion of the upper seat plate 100. The wiring cover 40 is fixed integrally to the slat curtain 2 by fixing tools 40a and 40b such as bolts, screws and rivets. The touch plate 41 is fixed to the slat curtain 2 as a unit by a fixing tool such as a bolt, a screw or a rivet at a position adjacent to the wiring cover 40 and facing an emergency switch (not shown). Yes. The wiring cover 40 has notches 40c and 40d on the left and right, but the rubber bush 34 is inserted into the notch 40c when attached to the right front side as shown in FIG. 4, and the notch 40d has the opposite. The rubber bush 34 is inserted when attached to the left front side. By appropriately adjusting the positions of the notches 40c and 40d, the cord 11a can adjust the angle φ1 with respect to the guide rails 3 and 4 (or the angle with respect to the floor surface 21).
[0018]
As shown in FIG. 3, the fixed pulley 18 a converts the cord 11 a into a cord 11 b in a direction parallel to the longitudinal direction of the guide rail 3. The movable pulley 18b changes the direction of the cord 11b to a cord 11c parallel to the longitudinal direction of the guide rail 3 and opposite to the cord 11b, bends, and is introduced into the control device 8 via the cord fixing plate 20. To 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 connected (linked) as a unit by a fixing tool such as a screw or a rivet. Further, in the drawing, the movable pulley 18b is provided on the upper side of the flat bar 19 so as to be separable. However, the present invention is not limited to this, and the movable pulley 18b may be provided integrally in the flat bar 19. By storing the movable pulley 18b, the flat bar 19 and the like in the guide rail 3 in this way, it is not necessary to separately provide an installation location such as the wiring routing means in the upper part of the lintel or the like, thereby saving space. Can be planned. In this embodiment, since the movable pulley 18b and the flat bar 19 are accommodated in the guide rail 3 and moved in the vertical direction, there is no need to provide these installation locations separately. In addition, since the cord 11a is connected to the seat plate switch 10 with a predetermined angle φ1 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 failure Object detection can be performed.
[0019]
FIG. 6 is a diagram showing details of the wiring routing means including the cord, fixed pulley, movable pulley and flat bar of FIG. FIG. 7 is a perspective view showing a part of FIG. 6 is integrally attached to the guide rail 3, and the microswitch 105 and the control device 8 are connected by connectors 11d and 11e. Therefore, when the cords 11a to 11c are cut and the movable pulley 18b and the flat bar 19 are left in the guide rail 3, the ones as shown in FIG. First, the base 30 is attached to the lintel unit 9 with a fixture such as a screw or a rivet. The fixed pulley 18a is rotatably attached to the base 30. The cords 11a to 11b are moved along the guide groove of the fixed pulley 18a by the guide rollers 31 and 32. The connector 11d is attached to the tip of the cord 11a and is connected to the connector on the seat plate switch 10 side. The connector 11e is attached to the tip of the cord 11c and connected to the control device 8. The cord 11c is fixed to the base 30 via the rubber bush 33. The cord 11 a is fixed to the seat plate switch 10 via the rubber bush 34.
[0020]
As described above, the cord 11a is provided so as to form a predetermined angle φ1 with respect to the guide rails 3 and 4, when the shutter curtain 2 is stored, the angle φ1 is substantially (90 °) and the cord 11a is accordingly accompanied. This is to reduce the length of contact with the fixed pulley 18a as much as possible. Conversely, when the cord 11a is provided so as to be substantially parallel to the guide rails 3 and 4, the angle φ1 is substantially 0 °, and the length of the cord 11a contacting the fixed pulley 18a is increased. If the contact length increases, the contact area between the cord 11a and the fixed pulley 18a increases, the stress applied to the cord 11a increases, and the life of the cord 11a may be shortened. is there. Thus, extending the life of the cord as much as possible is important in reducing the number of times the movable pulley 18b and the flat bar 19 are left in the guide rail 3 by cutting the cord.
[0021]
FIG. 8 is a view of the relationship between the cord 11a connected to the seat plate switch 10 of FIG. 1 and the fixed pulley 18c as viewed from the winding shaft 5 side. In FIG. 8, the tip of the cord 11a is connected to the seat switch 10 side. As shown in FIG. 8 (A), it is most desirable that the cord 11a is positioned on the extended line of the guide groove of the fixed pulley 18a. However, depending on the actual shape of the seat plate switch 10, FIG. As shown in (B), the attachment position of the cord 11a may be shifted by a distance y1 in a direction perpendicular to the opening surface (y direction when the opening surface is the x-axis direction). Further, in conjunction with the opening / closing operation of the shutter curtain 2, the seat plate portion may swing in the vertical (y) direction with respect to the opening surface. Accordingly, as shown in FIG. 8B, the cord 11a crosses at an angle θ1 with respect to the extension line of the guide groove of the fixed pulley 18a. Here, the crossing angle θ1 is θ1 = tan ^-1 It can be expressed by (y1 / x1).
[0022]
As shown in FIGS. 8A and 8B, when the attachment position of the cord 11a is sufficiently away from the fixed pulley 18a in the x direction, such as a distance x1, the crossing angle θ1 is sufficiently small so that it is almost the same. no problem. However, as shown in FIG. 8C, when the attachment position of the cord 11a is a distance x2 close to the fixed pulley 18a side, the crossing angle θ2 also increases, and the cord 11a is opened during the opening / closing operation of the shutter curtain 2. There is a risk of cutting while being pinched between the fixed pulley 18a and the guide roller 31, or the cord 11a may be disconnected from the guide groove of the fixed pulley 11a and cut. Accordingly, it is preferable that the attachment position of the cord 11a is such that the aforementioned crossing angle θ1 is about 30 ° or less. The intersection angle θ1 of 30 ° means that the ratio (y1 / x1) between the distance x1 of the attachment position of the cord 11a and the distance y1 of the maximum deflection width in the vertical direction of the attachment position is smaller than ½. It means you can do it. Further, the crossing angle θ1 needs to be equal to or less than the maximum angle at which the cord 11a is not sandwiched between the fixed pulley 18a and the guide roller 31. In other words, the crossing angle θ1 needs to be equal to or less than the maximum angle at which the cord 11a does not come off the guide groove of the fixed pulley 18a.
[0023]
The embodiment of FIG. 8 is described in the form of the embodiment of the claims as follows. The fixed guiding means is provided in the vicinity of the upper portion of the guide means so that a guide groove formed to guide the wiring means is substantially parallel to the opening surface, and the wiring means The crossing angle θ1 formed by the wiring means heading from the means toward the fixed guiding means and the extension line of the guide groove of the fixed guiding means is not more than an angle that prevents the wiring means from being removed from the guide grooves of the fixed guiding means. It is attached to the opening / closing means that is separated from the guide means by a predetermined distance. That is, the wiring means for transmitting the detection signal from the detecting means to the recognizing means is bent so as not to be bent by the fixed guiding means and the movable guiding means so as not to pass between the opening / closing means and the guiding means. Has been. The fixed guiding means and the movable guiding means are configured to guide and guide the wiring means by rotation, such as rollers and pulleys, or to guide and guide the wiring means by a member that does not rotate but has good slippage. It has a guide groove for guiding the wiring means. When such a fixed guiding means is provided in the vicinity of the upper part of the guide means, the line extended along the direction of the guide groove is provided so as to be substantially parallel to the opening surface. Therefore, the crossing angle θ1 formed by the wiring direction of the wiring means and the extension line of the guide groove of the fixed guiding means is determined depending on where the wiring means is attached. For example, when the crossing angle θ1 formed by the wiring direction of the wiring means and the extension line of the guide groove of the fixed guiding means is almost 0 °, that is, the wiring direction of the wiring means substantially coincides with the extension line of the guide groove of the fixed guiding means. In such a case, the possibility that the wiring means is detached from the guide groove of the fixed guiding means is reduced, but the possibility that the wiring means is detached from the guide groove of the fixed guiding means increases as the crossing angle θ1 increases. . Therefore, here, the crossing angle θ1 is prevented from becoming so large by mounting the wiring means on the opening / closing means separated from the guide means by a predetermined distance so as not to be detached from the fixed guiding means. That is, the crossing angle θ1 formed by the wiring direction of the wiring means and the extension line of the guide groove of the fixed guiding means is equal to or less than a predetermined distance from the guide means so that the wiring means is not detached from the guide groove of the fixed guiding means. By attaching the wiring means on the remote opening / closing means, it is less likely that the wiring means will come off the guide groove of the fixed guiding means, and the resistance such as friction between the moving wiring means and the guiding groove of the fixed guiding means is also reduced. This lowers the life of the wiring means, so that the number of times that the movable guiding means and the weight means are left in the guide means by cutting the wiring means can be reduced.
[0024]
FIG. 9 is a diagram for explaining in what state the movable pulley and the flat bar are left in the guide rail when the cord is cut. FIG. 9A shows a state where the cord is cut for the first time after installation of the switchgear, and FIG. 9B shows a state where the movable pulley and the flat bar are newly replaced after being cut a plurality of times. FIG. When the cord is cut for the first time after installation as shown in FIG. 9A, the movable pulley 18 b and the flat bar 19 fall to the lowest part of the guide rail 3 and are held at the position of the weight receiving member 35. The weight receiving member 35 is raised so that the flat bar 19 dropped in the guide rail 3 does not come into contact with the lowermost portion of the guide rail 3 so as to stop at a position above the lowermost portion. This is to prevent the iron flat bar 19 and the like from being corroded by moisture or the like present at the bottom of the guide rail 3. When the cord is cut in this way, the movable pulley 18b and the flat bar 19 are left in the guide rail 3, and a new movable pulley 18b and the flat bar 19 are attached. In the case of the switchgear according to this embodiment, since the configuration is such that the life of the cord is extended as much as possible, the number of times the cord is cut is small, and the movable pulley 18b and the flat bar 19 may be left in the guide rail 3. Less. Assuming that the cord is cut and the movable pulley 18b and the flat bar 19 are left behind in the guide rail 3, the range of movement of the movable pulley 18b and the flat bar 19 according to the actual operation of the opening / closing device is as shown in FIG. Since the upper half of the guide rail 3 is sufficient as shown in FIG. 5B, a plurality of (six in the figure) movable pulleys 18b and flat bars 19 can be left in the guide rail 3 as shown. It has become. 9B, when the number of the remaining movable pulleys 18b and flat bars 19 reaches almost half or more of the guide rails, these movable pulleys 18b and flat bars from the guide rail 3 are used. 19 need to be removed, but it is not necessary to remove all of them, so it is only necessary to remove the one located at the uppermost portion, so that the lowermost one of the guide rail 3 is removed as shown in FIG. Can be easily removed.
[0025]
FIG. 10 is a diagram showing a state when both the movable pulley and the flat bar shown in FIG. 6 are housed in the rail. As shown in the figure, the movable pulley 18b and the flat bar 19 of the wiring routing means are stored in the rail 3 from the upper end of the rail 3. This is done in the same way when the cord is cut and the wiring routing means is replaced. When such an operation is performed, the flat bar 19 is long in the direction along the rail 3, so that the flat bar 19 and the movable pulley 18 b are not connected if the winding shaft 5 is not at a high position sufficiently separated from the lower surface of the shutter case 1. It may be difficult to store in the rail 3. Therefore, it is preferable that the movable pulley and its weight means can be easily accommodated in the rail 3 even when the take-up shaft 5 is at a low position close to the lower surface of the shutter case 1 without being far away.
[0026]
FIG. 11 is a diagram showing another embodiment of a shutter device which is an opening / closing device of the present invention. FIG. 12 is a diagram showing details of the wiring routing means including the cord, fixed pulley, movable pulley and chain type weight of FIG. FIG. 13 is a front view of FIG. In other words, this wiring routing means allows the movable pulley and its weight means to be easily accommodated in the rail 3 even when the winding shaft 5 is at a low position that is not so far away from the lower surface of the shutter case 1 and close. Is.
[0027]
If the weight means is long like the flat bar 19 as described above, the take-up shaft 5 must be at a high position sufficiently separated from the lower surface of the shutter case 1 when the weight means is housed in the rail 3. Therefore, as shown in FIG. 11, instead of the flat bar 19, a chain-type weight 60 is used as the weight means. The total weight of the chain type weight 60 is almost the same as that of the flat bar 19, and its shape can be flexibly deformed. That is, the chain-type weight 60 is configured to be able to deform its entire shape by an assembly of a plurality of members. Therefore, even when the winding shaft 5 is at a low position close to the lower surface of the shutter case 1 without being far away from the lower surface of the shutter case 1, the chain type weight 60 can be compactly deformed and stored in the rail 3. Further, even if the chain type weight 60 is left in the rail by cutting the cord, the chain portion is deformed and becomes compact, so that more chain type weights are accommodated in the rail than the flat bar 19. Can be left behind.
[0028]
When the chain-type weight 60 is stored in the rail 3, it may be inserted from the upper surface side of the rail 3, or the chain-type weight 60 is moved laterally from left to right in FIG. You may make it accommodate in. Here, the chain-type weight has been described as an example in which the overall shape can be deformed by an assembly of a plurality of members, but a plurality of weight pieces connected by a ring or the like, and others Needless to say, for example, a bag body in which sand, pebbles, cobblestones, pebbles glass, or the like is enclosed, or a clay whose whole shape can be deformed alone may be used. Further, in FIG. 11, the case where both ends of the chain type weight 60 are connected to the movable pulley 18b side to form a ring shape has been described, but only one end of a plurality of chain type weights is connected to the movable pulley 18b side to form a bowl shape. It may be. Thus, even if the winding shaft 5 is in a low position that is not so far away from the lower surface of the shutter case 1 and close, the movable pulley and its weight means can be stored in the rail 3, so that these are stored. The overall size of the shutter case 1 can be reduced.
[0029]
In the above-described embodiment, the case where the shutter curtain is drawn out from above by the descending method has been described. However, the present invention can be similarly applied even when the shutter curtain is drawn out by the ascending method. Furthermore, the present invention can be similarly applied even if the shutter-like opening / closing member is extended by a horizontal pulling method or is extended by a horizontal method. Examples of the opening / closing device include a shutter device, a blind device, a roll screen device, a hanging curtain 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 as long as it is suitable for the purpose of use. Specifically, it can be made of metal, wood, plastic, cloth, or a composite of these.
[0030]
In the above-described embodiment, the seat plate switch has been described as an example of the detection means. However, the seat plate switch detects an obstacle by contacting the obstacle. It may be capable of detecting an obstacle. For example, as an object that detects an obstacle without contact, an infrared light emitting element and a light receiving element are provided on both sides of the opening / closing means, and the obstacle is detected when the infrared light is blocked. There is. Further, the detecting means may be one that detects the opening / closing position of the shutter curtain, a heat sensor that detects the temperature of the shutter curtain itself, or one that detects the locking / unlocking state of the shutter curtain.
[0031]
In the above-described embodiment, the guide rails 3 and 4 that are 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 movable and installed in conjunction with the operation of extending the shutter curtain. Even if it 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. It is applicable similarly by providing.
[0032]
Furthermore, in the above-described embodiment, the case where the cord 11a is provided to form the predetermined angle φ1 with respect to the guide rails 3 and 4 has been described, but the cord 11a and the guide rails 3 and 4 are substantially parallel to each other. In addition, a new fixed pulley may be provided on the lintel 9 above the attachment position of the cord 11a. In this case, the angle of the attachment position between the new fixed pulley and the fixed pulley 18a may be set to be equal to or smaller than the maximum angle at which the cord 11a is not sandwiched between the fixed pulley 18a and the guide roller 31. Further, the fixed pulley 18a (fixed guiding means) is configured to be capable of swinging, turning, swinging, etc., so that slight angle adjustment and position adjustment are automatically performed following the movement of the opening / closing means. It may be performed.
[0033]
【The invention's effect】
As described above, according to the opening and closing device of the present invention, the movable guide means such as a moving pulley and the weight means such as a weight can be used by cutting the wiring means such as the lead wire wired in the guide means such as the rail. Even when the guiding means and the weight means are left in the guide means, there is an effect that the wiring means can be quickly restored.
[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.
FIG. 3 is a front view of FIG. 2 viewed from a direction perpendicular to the opening surface.
4 is a diagram showing a wiring state around the seat plate of FIG. 2, and is a diagram showing a part of the seat plate portion removed. FIG.
FIG. 5 is a side view of FIG. 4 as viewed from the right side.
6 is a diagram showing details of the wiring routing means including the cord, fixed pulley, movable pulley, and flat bar of FIG. 1;
7 is a perspective view showing a part of FIG. 6; FIG.
8 is a view of a relationship between a cord connected to the seat plate switch of FIG. 1 and a fixed pulley as viewed from the winding shaft side.
FIG. 9 is a diagram for explaining in what state a movable pulley and a flat bar are left in a guide rail when a cord is cut.
10 is a view showing a state where both the movable pulley and the flat bar shown in FIG. 6 are housed in a rail.
FIG. 11 is a diagram showing another embodiment of the shutter device provided with the obstacle detection device of the present invention.
12 is a diagram showing details of the wiring routing means comprising the cord, fixed pulley, movable pulley and chain type weight of FIG.
13 is a front view of FIG. 11. FIG.
[Explanation of symbols]
1 ... Shutter case
2 ... Shutter curtain
3, 4 ... Guide rail
5 ... Winding shaft
6 ... Chain
7 ... Opening and closing machine
8 ... Control device
9 ... Magusa
10 ... Seat plate switch
11a-11c, 106 ... code
18a ... fixed pulley
18b ... movable pulley
19 ... Flat bar
20 ... Cord fixing plate
21 ... Floor surface
60 ... Chain type weight
40 ... Wiring cover
105 ... Micro switch

Claims (2)

Opening and closing means that operates to open and close the opening;
Guide means for guiding the opening and closing operation of the opening and closing means;
Detecting means that moves together with the opening and closing means to detect the state of the opening and closing means and outputs a 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 a 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 a movable guiding means within the guide means. Bent and connected to the recognizing means, a weight means is provided on the movable guiding means to apply a downward load to the movable guiding means so that the wiring means does not bend, and the open / close means is brought into an open / closed state. Wiring routing means configured to move the movable guiding means and the weight means in the vertical direction in the guide means in accordance with the distance between the detecting means and the recognizing means that change accordingly. With
When the movable guiding means and the weight means are left in the guide means by cutting the wiring means, a new movable guiding means and weight means are moved vertically in the guide means in a state where they are left as they are. An opening and closing device characterized in that it is separately provided so as to be movable. 2. The movable guide means and the weight means in the state where the movable guide means and the weight means are left in the guide means when the open / close means is fully closed. The length of the said wiring means is adjusted so that it may be located in opening / closing apparatus characterized by the above-mentioned.

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