JPH08823U - Panel shutter chain leading device - Google Patents

Abstract

(57) [Abstract] [Purpose] It is possible to shorten the length to the free end of the panel connecting chain in which a plurality of panels are connected to each other and mesh with the panel driving sprocket, and the free end side of the panel connecting chain is almost slack. First, make sure that the panel connecting chain does not come off from the sprocket for driving the panel. A free end portion 3a of a panel connecting chain 3 extending from a panel driving sprocket 8 toward a panel storage direction is always moored inside a bracket 5a so as to be movable in a panel transfer direction along a storage rail 4. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a chain leading device for a panel shutter, which prevents a pulling-out of a panel connecting chain that meshes with a panel driving sprocket by connecting a plurality of panels constituting a shutter curtain in series.

[0002]

[Prior art]

 A conventional panel shutter is provided with a pair of left and right guide rails standing upright on both sides of the opening for opening and closing the shutter, and a storage box arranged above these guide rails. The upper and lower panels are connected in series on both sides by roller chains, and the roller chains are meshed with the panel drive sprockets in the storage box. By the feed operation of the chain connecting the panels by the reverse rotation drive, the panel can be vertically moved in a series posture along the guide rail and horizontally moved in a parallel posture in the storage box along the storage rail. It is designed to be transferred.

If the free end of the roller chain that meshes with the panel driving sprocket and extends toward the panel storage direction is left in a free state, the roller chain will become entangled when the panel is moved up and down. Not only hinders the operation of raising and lowering the panel, but especially when the panel is extended, the free end of the roller chain is pulled toward the panel drive sprockets and removed from the panel drive sprocket. It causes an unexpected situation of falling.

Therefore, the free end of the roller chain needs to be moored in the storage box. In this case, the roller is moved so that the movement distance in the panel parallel posture corresponding to the entire length of the storage rail is secured. It is essential to moor the free end of the chain.

Therefore, conventionally, the free end portion of the roller chain has been moored and fixed to the depth end side in the storage box so that the movement distance in the panel parallel posture corresponding to the entire length of the storage rail can be secured. .

[0006]

[Problems to be solved by the device]

 The conventional panel shutter is configured as described above, and the free end of the roller chain is anchored to the end of the depth in the storage box so that the movement distance in the panel parallel posture corresponding to the total length of the storage rail is secured. Therefore, there is a problem that the entire length of the roller chain, more specifically, the length of the roller chain extending from the panel that first moves on the storage rail when storing the panel to the depth end of the storage box becomes long. In addition, when the length of the roller chain is increased in this way, when the panel is stored, the above-mentioned is between the panel that first moves onto the storage rail and enters the inner part of the storage box and the depth end of the storage box. There is a problem in that the roller chain is greatly slackened, which causes the roller chain to be entangled during the panel ascending / descending operation, which hinders the ascending / descending operation.

The present invention has been made to solve the above-mentioned problems, and when a panel is housed, from the panel that first moves on the housing rail to the free end of the panel link chain (roller chain). (EN) Provided is a chain leading device for a panel shutter, which can be shortened so that the free end side of the panel linking chain is hardly loosened, and there is no fear that the panel linking chain will come off from the panel drive sprocket. The purpose is to

[0008]

[Means for Solving the Problems]

 The chain tip guide device for a panel shutter according to the invention of claim 1 comprises a pair of left and right guide rails arranged on both sides of the opening for opening and closing the shutter, and a plurality of upper and lower panels for opening and closing between the guide rails. To form a suspension roller pivotally supported on both left and right sides of the panel, a panel connecting chain that connects the panels to each other on the left and right sides, and a panel storage section on the upper part of the guide rail. Left and right brackets that are arranged, a panel drive sprocket that is pivotally supported above the guide rails of the brackets and meshes with the above-mentioned panel connecting chain, and the bracket is provided with the panel drive sprocket. A storage rail that rotatably supports the panel hanging rollers that have passed to the storage direction side to suspend and store the panels in a parallel state. In the provided panel shutter, the free end of the panel connecting chain extending from the panel driving sprocket toward the panel storage direction is always moored inside the bracket so as to be movable in the panel moving direction along the storage rail. It is a thing.

According to a second aspect of the present invention, there is provided a chain tip guiding device for a panel shutter, wherein a pair of left and right guide rails arranged on both sides of a shutter opening / closing opening and a plurality of upper and lower panels for opening / closing between the guide rails. A hanging roller pivotally supported on the left and right sides of the panel, a panel connecting chain that connects the panels in series on the left and right sides, and a panel storage section on the upper part of the guide rail. Left and right brackets arranged to be formed, a panel drive sprocket that is pivotally supported above the guide rails in the bracket and meshes with the panel linking chain, and the bracket is provided with the panel drive sprocket. The panel hangs and stores the panels in parallel by rotatably supporting the panel hanging rollers that have passed the sprocket in the panel housing direction. In a panel shutter including a storage rail, a chain tip guide rod is arranged above the storage rail, and the panel connecting chain extending from the panel drive sprocket to the panel storage direction side with respect to the chain tip guide rod. The free end of is freely movably fitted.

According to a third aspect of the present invention, there is provided a panel shutter chain tip guiding device, wherein the chain tip guiding rod of the second aspect is arranged above a space portion between a panel and a bracket suspended by a storage rail. Is.

The panel shutter chain tip guiding device according to the invention of claim 4 is arranged above the space between the panel suspended on the storage rail and the blanket.

[0012]

[Action]

 In the chain tip guide device of the panel shutter according to the invention of claim 1, the free end portion of the panel connecting chain that meshes with the sprocket for driving the panel and extends in the panel storage direction is moored in the movement direction in the panel parallel posture. Therefore, when the panel is stored, the free end of the panel connecting chain moves together with the panel that first moves to the storage rail. For this reason, it is not necessary to connect and fix the free end portion of the panel linking chain to the depth end of the storage box as in the conventional case, and the panel linking chain can be shortened and the free end side of the panel linking chain is attached to the panel. It does not come loose when stored. Therefore, it is possible to reliably prevent the entanglement of the panel connecting chain during the panel ascending / descending operation, and since the free end of the panel connecting chain is always moored to the chain tip guide device, the panel connecting chain can be released when the panel is extended. There is no need to remove the sprocket for driving the panel, and safety and reliability are greatly improved.

The chain tip guide device of the panel shutter according to the second aspect of the present invention comprises a chain tip guide rod arranged above the storage rail, and the free end portion of the roller chain can be freely moved to the chain tip guide rod. Since it is only loosely fitted into the storage rail, the structure is very simple, and the chain tip guide rod arranged above the storage rail as described above is installed between the panels in the parallel posture suspended on the storage rail. Since the panel-linked chain that is linked is not a hindrance when it bends and hangs down in a U shape, it is not necessary to provide an extra space for arranging the chain tip guide rods in the storage box. The structure can be obtained, and the same effect as that of the first aspect can be obtained.

In the chain tip guide device of the panel shutter according to the third aspect of the invention, the chain tip guide rod is arranged by utilizing the upper space between the panel and the bracket suspended on the storage rail. Therefore, the same function and effect as in the case of claim 2 can be obtained.

Since the panel shutter chain tip guiding device according to the invention of claim 4 is arranged above the space between the panel hung on the storage rail and the blanket, The same action and effect as in the case are achieved.

[0016]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 is a vertical sectional view showing a storage box portion of a panel shutter according to an embodiment of the present invention, and FIG. 2 is a schematic perspective view of the panel drive system of FIG. In the figure, 1 is a pair of left and right guide rails, and these guide rails 1 are composed of vertical guide rails standing upright on both sides of a so-called shutter opening / closing opening such as an entrance / exit of a building or a window. Reference numeral 2 denotes a plurality of upper and lower tier panels that open and close between the two guide rails 1. These panels 2 have a panel face plate 2b suitable for a rectangular frame 2a, as shown in FIGS. It is installed. As shown in FIG. 3 and FIG. 4, pins (support shafts) 21 projecting outward from both end surfaces of the panel 2 are provided on both upper sides of the panel 2. The pins 21 are panels made of roller chains. It is inserted and connected to the connecting chain 3 via a sleeve-shaped attachment 24 so as to be rotatable and movable in the thrust direction.

More specifically, as shown in FIGS. 3 and 4, pin brackets 26 are provided on both end surfaces of the upper portion of the panel 2, and the pins 21 are movably inserted in the thrust direction into the pin brackets 26. Therefore, the pin 21 is fixed by the screw 27 at the movement adjusting position in the thrust direction.

In this way, the plurality of panels 2 that move up and down between the two guide rails 1 are connected to each other through the pins 21 in series by the panel connecting chains 3 on the outside of both end surfaces of each panel 2. It is connected.

Further, a hanging roller 25 positioned further outside the panel connecting chain 3 is rotatably attached to the pin 21 of each panel 2. Further, panel rollers 22 are rotatably supported on both sides of the lower part of each panel 2.

A storage box 5 is arranged above the guide rails 1. The storage box 5 is provided with vertical brackets 5a on both left and right sides, and is located above the guide rails 1 inside the brackets 5a. A pair of left and right panel driving sprockets 8 are pivotally supported, and the panel connecting chain 3 is meshed with these panel driving sprockets 8.

A storage rail 4 is arranged inside the bracket 5 a, and the storage rail 4 is located between the bracket 5 a and the panel drive sprocket 8 above a horizontal line passing through the axis of the panel drive sprocket 8. From the side toward the panel storage direction. In the example shown in the figure, the panel storage direction side is gradually and downwardly inclined to hang down the panel 2 that has passed the panel drive sprocket 8 toward the panel storage direction. The roller 25 is rotatably supported.

Therefore, the front end side of the storage rail 4 intervenes between the bracket 5a and the panel driving sprocket 8 and overlaps a cylindrical region having a circular circular locus of the panel driving sprocket 8 as a cross section. are doing. The storage rail 4 has a mounting surface for the bracket 5a and a rolling surface of the hanging roller 25, and a space is formed below the rolling surface, so that the panel driving sprocket 8 is provided. Of the panel drive sprocket 8 corresponding to the movement locus of the hanging roller 25 according to the chain feed direction of the panel drive sprocket 8 in the outer peripheral region around the axis of the panel drive sprocket 8. The upper end of the guide rail 1 and the front end of the storage rail 4 are separated from each other to form a railless space region.

Further, the descending end portion of the storage rail 4 which is inclined as described above is interrupted at a front position separated from the depth end in the storage box 5 by a distance corresponding to the installation space of the switch 13. A stopper 4a (see FIG. 1) is provided at the lower end of the storage rail 4 to prevent the hanging roller 25 rolling on the storage rail 4 from falling off.

In the above, the series of panels 2 is vertically moved along the guide rails 1 by the feed operation of the panel connecting chain 3 by the forward and reverse rotations of the panel driving sprockets 8 and the storage rails 4. It is designed to be continuously transferred along with the lateral movement in a parallel posture. In the parallel posture of the panels 2, the panel connecting chain 3 between the panels 2 hangs down inside the storage rail 4.

In such a panel shutter, an abnormal refraction of the panel connecting chain 3 located near the lower portion of the panel driving sprocket 8 is provided on the side portion near the upper end portion of the guide rail 1 extending into the storage box 5. A chain slack detecting device 7 for electrically detecting (slack) is provided.

In the vicinity of the panel drive sprocket 8 in the storage box 5, the panel connecting chain 3 is brought into contact with the panel drive sprocket 8 in an appropriate meshing direction or a meshing disengagement direction in the movement process of the panel 2. Chain guide members 9 and 10 for guiding are arranged.

In these chain guiding members 9 and 10, the panel housing side chain guiding member 9 arranged on the housing rail 4 side in the vicinity of the panel driving sprocket 8 projects from the inside of the bracket 5 a of the housing box 5. It has an upper edge 9b and a side edge 9a that wrap around the side of the panel driving sprocket 8.

More specifically, the upper edge 9b of the panel accommodating side chain guiding member 9 is an inner member 9c positioned inside the addendum circle of the panel drive sprocket 8 and an outside member of the addendum circle. It has an outer member 9d located in the movement path of the panel connecting chain 3 that goes in and out of the box 5.

Further, the side edge 9a of the panel accommodating side chain guiding member 9 is downwardly positioned on the accommodating rail 4 side of the panel driving sprocket 8 in a state of being spaced apart from and facing the tooth tips of the panel driving sprocket 8. It extends so as to prevent the hanging portion of the panel connecting chain 3 from being entangled and meshed with the panel driving sprocket 8.

The panel accommodating side chain guiding member 9 is formed so as to be in contact with the panel linking chain 3 so that the panel linking chain 3 can be contact-guided to the panel driving sprocket 8 in the meshing direction, the meshing releasing direction and the guide rail 1 direction. Has been done.

On the other hand, the panel inlet / outlet side chain guide member 10 arranged on the guide rail 1 side in the vicinity of the upper end side of the guide rail 1 includes an inner member 10 a located inside the tip circle of the panel driving sprocket 8. , An outer member 10b located outside the tip circle and in the movement path of the panel connecting chain 3, and comes into contact with the panel connecting chain 3 to disengage the panel connecting chain 3 in the meshing direction. Direction and the guide rail 1 direction, the contact guide is formed.

In the above, at least one of the panel storage side chain guiding member 9 and the panel entrance / exit side chain guiding member 10 constitutes a chain / sprocket guiding device.

In the vicinity of the panel entrance / exit of the storage box 5, there is provided a panel guide 11 for smoothly guiding the panel rollers 22 at the bottom of each panel 2 in the panel storage direction and the panel feeding direction.

Further, an opening / closing device 13 is arranged in the depth space portion inside the storage box 5. Here, in the storage box 5, the descending end of the storage rail 4 is interrupted at a front position separated from the depth end of the storage box 5 by a distance corresponding to the installation space of the switch 13, so that the storage rail 4 is stopped. The opening / closing device 13 is arranged by utilizing a depth space region in the storage box 5 in which the storage box 5 does not extend.

As shown in FIG. 1, the opening / closing machine 13 integrally has a mounting base 13a, and on the upper and lower portions on both sides of the mounting base 13a, long slots 13b for mounting which are long in the vertical direction are provided. .

The opening / closing mechanism 13 is attached to the bracket 5a on one side in the inner space area of the storage box 5, and at the time of attachment, the opening / closing mechanism 13 is attached to the long hole 13b of the attachment base 13a of the opening / closing mechanism 13. The mounting base 13a is fixed to the bracket 5a by inserting the bolt 28 and screwing and tightening the nut 29 on the bolt 28. Therefore, by loosening the nut 29, the mounting position of the switch 13 can be adjusted in the vertical direction by an amount corresponding to the length of the elongated hole 13b.

The switch 13 has an output sprocket 130 as shown in FIG. 1, and an interlocking sprocket 14 is interlocked with the output sprocket 130 via an interlocking chain 15.

The interlocking sprocket 14 has a first transmission sprocket 17 coaxially, and is rotatably attached to the bracket 5 a via a bearing 30. Here, as shown in FIG. 1, the bearing 30 is fitted and mounted so that its position can be adjusted with respect to the notch 5b provided in the bracket 5a. Therefore, the drive-side rotary shaft 16 connecting the interlocking sprocket 14 and the first transmission sprocket 17 can be adjusted in space between the panel drive sprocket 8.

Both ends of the driving-side rotary shaft 16 project to the outside of the left and right brackets 5 a via the bearing body 30, and the first transmission sprocket 17 is fitted to the outer projecting ends thereof.

On the other hand, as shown in FIG. 2, the driven side rotation shaft (sprocket shaft) 20 of the panel driving sprocket 8 pivotally supported above the guide rails 1 on the left and right brackets 5a as described above, as shown in FIG. The bearings 31 are projected to the outside of the left and right brackets 5a, and the second transmission sprocket 18 is fitted to the outer protruding ends thereof.

An endless transmission chain 19 is meshed and wound around the first transmission sprocket 17 and the second transmission sprocket 18, whereby the rotational output of the opening / closing machine 13 is left and right. And the panel driving sprocket 8 is rotatably driven.

Therefore, the panel driving sprocket 8 and the interlocking sprocket 14 are arranged inside the bracket 5a, and the first transmission sprocket 17, the second transmission sprocket 18 and the transmission chain 19 are arranged outside the bracket 5a.

In the above description, since the side piece 5c is formed along the guide rail 1 on one side (left side in FIGS. 1 and 2) of the bracket 5a, this side piece 5c is formed. It can be used as a bracket mounting support for mounting and fixing to a building or the like.

As described above, by using the side piece 5c of the bracket 5a as the bracket mounting support 5c, the driven side rotating shaft 20 that supports the panel weight that is a dynamic load when the panel is lifted is mounted on the bracket mounting support 5c. Can be placed at the closest position. Accordingly, the storage rail 4 supporting the panel load, which is a static load in the panel storage state, can be arranged at a position farther from the bracket mounting support portion 5c than the driven side rotating shaft 20.

In this way, the driven side rotary shaft 20 that supports the dynamic load when the panel is lifted is arranged at the position closest to the bracket mounting support portion 5c, and the storage rail 4 that supports the static load when the panel is stored is installed. By arranging the bracket 5a at a position farther from the bracket mounting support portion 5c, it is advantageous in strength performance of the entire storage box 5 including the bracket 5a.

In the storage box 5, the guide rail 1 is the panel elevating section, the storage rail 4 is the panel storage section, and the system of the opening / closing machine 13 and the drive side rotary shaft 16 is the drive mechanism section. The panel elevating part and the panel storing part are arranged in a space sandwiched by a mechanism part and the bracket mounting support part 5c.

Then, in the drive mechanism section (the inner space area of the storage box 5), the main drive side rotating shaft 16 and the interlocking sprocket 14 are located above the opening / closing machine 13, and these opening / closing machine 13 and the main drive side are located. The rotary shaft 16 and the interlocking sprocket 14 are arranged in a direction substantially parallel to the panel 2 at the storage position suspended by the storage rail 4.

With such an arrangement, the installation space of the switch 13 and the power transmission sprocket (the interlocking sprocket 14 and the first transmission sprocket 17) of the drive side rotary shaft 16 system in the storage box 5 can be minimized. You can Therefore, it is not necessary to make the installation space particularly large, and the installation space of the storage box 5 is reduced as compared with the case where the switch 13 is externally attached to the storage box 5, and the restrictions on the installation work. Can be greatly eased.

A chain tip guide device 6 is arranged at a position above the storage rail 4 in the storage box 5, and the chain tip guide device 6 is attached to the inner side of the bracket 5 a and parallel to the storage rail 4. It consists of a chain end guide rod 6. The chain tip guide rod 6 is arranged by effectively utilizing the upper space between the bracket 5a and both end surfaces of the panel 2 suspended by the storage rail 4.

A free end portion (end side link portion) 3a of a panel connecting chain 3 that meshes with a panel driving sprocket 8 and extends in the panel storage direction is movably moored to the chain tip guide rod 6. There is.

As a result, when the panel 2 is moved up and down, the free end portion 3a of the panel connecting chain 3 moves along the chain tip guide rod 6, so that it first moves onto the storage rail 4 during the panel storage operation. The length from the pin 21 of the panel 2 to the free end 3a of the panel connecting chain 3 can be shortened.

Therefore, the free end side of the panel connecting chain 3 does not greatly loosen particularly when the panel is housed, and the entanglement of the panel connecting chain 3 during the panel ascending / descending operation can be reliably prevented.

Further, since the free end portion 3a of the panel connecting chain 3 is always moored to the chain tip guide rod 6 as described above, the panel connecting chain 3 is detached from the panel driving sprocket 8 when the panel is extended. Nonetheless, safety and reliability will be greatly improved.

Further, as described above, the chain tip guide rod 6 arranged above the storage rail 4 has the panel connecting chain 3 connecting the panels 2 in the parallel posture suspended from the storage rail 4 in the U-shape. Since it does not hinder the bending and hanging in a letter shape, there is no need to provide a special space for arranging the chain tip guide rod 6 in the storage box 5, and thus a compact and compact structure can be achieved.

Next, the operation will be described. When the switch 13 is activated in the shutter opening direction, the rotational driving force from the output sprocket 130 via the interlocking chain 15 is the interlocking sprocket 14 → first transmission sprocket 17 → transmission chain 19 → second transmission sprocket 18 → By being transmitted to the panel drive sprocket 8, the panel drive sprocket 8 is rotationally driven in the clockwise direction in FIG.

As a result, the panel 2 between the guide rails 1 is pulled up via the panel connecting chain 3 meshing with the panel driving sprocket 8. When the upper end of the panel 2 reaches the panel drive sprocket 8 due to the pulling up, the upper end of the panel 2 circularly moves along with the panel connecting chain 3 along the pitch circumference of the panel drive sprocket 8 and the storage rail 4 moves. It is guided and moved in the direction.

At this time, the panel roller 22 at the lower portion of the panel 2 is guided obliquely upward by the inclined guide portion 11a of the panel guide 11 and advances in the storage box 5 in the depth direction (panel storage direction).

In this way, the upper end portion of the panel 2 that has moved upward between the guide rails 1 makes an arc movement toward the storage rail 4 side (panel storage direction side) along the tooth tips of the panel drive sprocket 8. At this time, the panel roller 22 is guided obliquely upward by the panel guide 11, so that the panel 2 is maintained in the vertical posture in the lateral shake prevention state when the panel drive sprocket 8 is passed through in the panel storage direction. Moving.

Then, in the panel 2 that has passed through the panel driving sprocket 8 in the panel storage direction, the hanging rollers 25 on both upper sides of the panel 2 move onto the storage rail 4. At this time, the suspending roller 25 rolls on the storage rail 4 by its inclination, so that the panel 2 automatically descends along the storage rail 4 in the suspended state in the parallel posture by its descending inclination. Move in.

Then, when the suspension roller 25 of the panel 2 that first migrates onto the storage rail 4 reaches the end of the descending slope of the storage rail 4, the suspension roller 25 is suspended from the storage rail 4. It comes into contact with a stopper 4a provided at the descending end portion and is prevented from falling off from the storage rail 4.

In this way, after the first panel 2 reaches the descending end portion of the storage rail 4, the subsequent panels 2 are sequentially fed, so that the panels 2 sequentially moved to the storage rail 4 are adjacent to each other. It is suspended and stored in a hanging state in parallel.

In the above, when the panel 2 is transferred from the vertical movement of the series posture along the guide rail 1 to the horizontal movement of the parallel posture along the storage rail 4, the sprocket 8 for driving the panel is connected to the chain 3 for linking the panels. Since the panel inlet / outlet side chain guide member 10 extending so as to be able to guide the engagement direction is arranged on the panel inlet / outlet side that first meshes with the panel inlet / outlet side, the panel drive side of the panel inlet / outlet side chain guide member 10 The panel connecting chain includes an inner member 10a located inside the addendum circle of the sprocket 8 and an outer member 10b located outside the addendum circle and within the movement path of the panel connecting chain 3. 3 is surely guided in a predetermined direction with respect to the sprocket 8 for driving the panel.

Even if the panel connecting chain 3 and the panel driving sprocket 8 are abnormally engaged with each other due to some unexpected action, the panel accommodating side chain guide is provided on the panel accommodating side where the engagement is completed. Since the member 9 is arranged, the panel accommodating side chain guiding member 9 has the inside of the tip circle of the panel driving sprocket 8 and the upper side of the horizontal line passing through the axis of the panel driving sprocket 8. The positioned inner member 9c and the inner axis of the panel driving sprocket 8 are located in the movement path of the panel connecting chain 3 that moves in and out of the storage box 5 outside the addendum circle of the panel driving sprocket 8. With the outer member 9d positioned above the horizontal line passing through, the panel connecting chain 3 is properly engaged with the sprocket 8 for driving the panel. Since the guide is brought into contact with the disengagement direction and the guide rail 1 direction, the panel connecting chain 3 is reliably disengaged from the panel driving sprocket 8 and the panel 2 is smoothly stored.

Here, the functions and effects of the inner member 9c and the outer member 9d will be described in more detail. Since the panel connecting chain 3 comes into contact with each other at two portions, the inner member 9c located inside the addendum circle of the panel driving sprocket 8 and the outer member 9d located outside the addendum circle. The contact area is greatly expanded, and the disengagement is performed with certainty and efficiency, and the panel connecting chain 3 and the panel storage side chain guiding member 10 concentrate unreasonable force generated at the time of disengagement. Since it does not occur, unnecessary damage is unlikely to occur and its life is extremely long. In particular, since the contact between the two always occurs at the time of the above reverse activation, such an effect is extremely important.

Further, since the inner member 9c comes into contact with the root portion of the meshing position of the panel connecting chain 3 meshing with the panel driving sprocket 8 and releases the mesh, the mesh releasing effect is extremely high. It is remarkable.

Further, both the inner member 9c and the outer member 9d are located above the horizontal line passing through the axis of the panel driving sprocket 8, so that the panel driving sprocket 8 of the panel connecting chain 3 is The disengagement can be performed extremely efficiently and effectively. However, since the inner member 9c and the outer member 9d are located near the starting end of the storage rail 4 when viewed from the side as shown in FIG. 1, it is extremely effective timing for releasing the meshing of the panel connecting chain 3. It can be carried out.

When the panel is stored, the chain 3 for linking the panels moves into the storage box 5 together with the first panel 2 without being entangled by the chain tip guide rod 6, and when the panel 2 is folded and stored, the chain shown in FIG. As shown by the chain double-dashed line (a), the panel 2 is regularly suspended in a U-shape along the side surface of each panel 2.

In this manner, when each panel 2 changes its direction from the upward vertical movement in the in-line posture along the guide rail 1 to the lateral movement in the parallel posture along the storage rail 4, the initial horizontal movement in the parallel posture is started. In the above, the panel connecting chain 3 connecting the preceding panel 2 and the following panel 2 hangs down, but since this hanging down part is guided downward along the side edge 9a of the panel storage side chain guiding member 9, It is possible to reliably prevent the hanging portion of the panel connecting chain 3 from being entangled with and interlocking with the sprocket 8 for driving the panel, so that the storage rail 4 is not damaged and the vertical movement of the panel 2 is not hindered. This series of operations is repeated each time the subsequent panel 2 reaches the vicinity of the storage rail 4.

Next, when the opening / closing device 13 is started in the reverse rotation from the above-mentioned panel housed state, the rotation output thereof causes the panel driving sprocket 8 to rotate in the counterclockwise direction in FIG. The panel 2 on the storage rail 4 is sequentially pulled out in the feeding direction via the panel connecting chain 3 meshed with the panel driving sprocket 8.

At this time, in the vicinity of the panel driving sprocket 8, first, the panel connecting chain 3 is moved to a predetermined meshing position of the panel driving sprocket 8 by the side edge 9a and the upper edge 9b of the panel accommodation side chain guiding member 9. Be sure to be guided. Further, the panel connecting chain 3 is smoothly separated from the panel drive sprocket 8 by the other panel entrance / exit side chain guide member 10.

That is, the panel connecting chain 3 is composed of two parts, an inner member 10a located inside the addendum circle of the panel driving sprocket 8 and an outer member 10b located outside the addendum circle. Since they come into contact with each other, the contact area is greatly expanded, and the disengagement is extremely surely and efficiently performed, and the panel connecting chain 3 and the panel inlet / outlet side chain guiding member 10 are forced to exert an unreasonable force at the time of disengagement. Since it is not concentrated in one place, unnecessary damage is unlikely to occur and its life is extremely long. In particular, the contact between the two always occurs at the time of the reverse activation, so such an effect is extremely important.

Further, since the inner member 10a comes into contact with the root portion of the meshing position of the panel connecting chain 3 meshing with the panel driving sprocket 8 to release the meshing, the meshing releasing effect is extremely remarkable. is there.

In the process of raising and lowering the panel 2 as described above, if the panels 2 are folded or clogged in the guide rail 1 by any chance, the panel 2 becomes an unusable situation and cannot be left as it is. It causes a big accident.

However, in this case, since the panel connecting chain 3 has abnormal refraction, the chain slack detecting device 7 detects the abnormal refraction, which causes a large amount of folding or clogging between the panels 2. It can respond immediately to scandals such as accidents.

[0075]

As described above, according to the first aspect of the present invention, the free end of the panel connecting chain that engages with the panel driving sprocket and extends toward the panel storage direction is moved in the panel parallel posture inside the bracket. Since it is moored so that it can move freely in the direction, the free end of the panel link chain can be moved together with the panel that first moves to the storage rail when storing the panel. It is not necessary to connect and fix the free end of the link chain to the depth end of the storage box, and the length of the panel link chain can be shortened, and the free end side of the panel link chain may loosen significantly during panel storage. There is an effect that it is possible to reliably prevent the entanglement of the panel connecting chain during the panel lifting operation. In addition, since the free end of the panel link chain is always moored to the chain tip guide device, the panel link chain does not come off from the panel drive sprocket when the panel is extended, and it is safe. It also has the effect of significantly improving reliability.

According to the invention of claim 2, the chain tip guide rod is arranged above the storage rail, and the free end portion of the chain connected to the panel is movably loosely fitted to the chain tip guide rod. Therefore, the structure is very simple, and the chain tip guide rod arranged above the storage rail as described above connects the panels in parallel form suspended from the storage rail. Since there is no hindrance when the chain bends in a U shape and hangs down, there is no need to provide a special space for arranging the chain tip guide rod in the storage box. Therefore, a compact storage structure can be achieved, and the above-mentioned claim is required. The same effect as in the case of 1 is obtained.

According to the invention of claim 3, since the chain tip guide rod is arranged by utilizing the upper space between the panel suspended from the storage rail and the bracket, in the case of claim 2 The same effect as can be obtained.

According to the invention of claim 4, since the chain tip guide rod is arranged by utilizing the panel suspended from the storage rail and the space above the blanket, the same as in the case of claim 2 The effect of is obtained.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing a storage box portion of a panel shutter according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

3 is a partial vertical cross-sectional view showing, in an enlarged manner, a connecting portion between a panel and a panel connecting chain in FIG.

FIG. 4 is a partial vertical sectional view of a panel.

5 is a cross-sectional view taken along the line AA of FIG.

FIG. 6 is a structural explanatory view in which a part of a panel connecting chain is shown in section.

[Explanation of symbols]

 1 Guide Rail 2 Panel 3 Panel Chain Chain 4 Storage Rail 5a Bracket 6 Chain Tip Guide Device (Chain Tip Guide Rod) 8 Panel Drive Sprocket 25 Travel Roller

Claims (4)

[Scope of utility model registration request] 1. A pair of left and right guide rails disposed on both sides of a shutter opening / closing opening and having a storage box in the upper portion, a plurality of panels for vertically moving between the guide rails, and pivotally supported on both sides of the panel. A hanging roller,
A panel connecting chain that connects the panels in series, a panel driving sprocket that meshes the panel connecting chain in the storage box, and a panel that passes through the panel driving sprocket in the panel storage direction. A storage rail that rotatably supports the hanging roller is provided, and the series of panels are moved in series along the guide rail by the feeding operation of the panel connecting chain by the forward and reverse rotations of the panel driving sprocket. A chain tip guide device for a panel shutter, which carries out vertical movement and lateral movement in a parallel posture along the storage rail. 2. A pair of left and right guide rails arranged on both sides of the opening for opening and closing the shutter, a plurality of upper and lower panels that are opened and closed between the guide rails, and a suspension pivotally supported on both left and right sides of the panel. Rollers, a panel connecting chain that connects the panels to each other on the left and right sides in series, left and right brackets arranged to form a panel storage portion on the upper portion of the guide rail, and the guide rails in the bracket. Panel drive sprocket that is pivotally supported above and meshes with the panel connecting chain, and the panel hanging sprocket that is provided on the bracket and passes through the panel drive sprocket toward the panel storage direction can roll freely. A panel shutter having a storage rail for supporting and storing the panels in parallel in a suspended state, the panel drive spro Chain tip guide of a panel shutter, characterized in that the free end portion of the panel connecting chain extending from the racket to the panel storage direction side is always moored inside the bracket so as to be movable in the panel moving direction along the storage rail. apparatus. 3. A pair of left and right guide rails arranged on both sides of the opening for opening and closing the shutter, a plurality of upper and lower panels that are opened and closed between the guide rails, and a suspension pivotally supported on both left and right sides of the panel. Rollers, a panel connecting chain that connects the panels to each other on the left and right sides in series, left and right brackets arranged to form a panel storage portion on the upper portion of the guide rail, and the guide rails in the bracket. Panel drive sprocket that is pivotally supported above and meshes with the panel connecting chain, and the panel hanging sprocket that is provided on the bracket and passes through the panel drive sprocket toward the panel storage direction can roll freely. A panel shutter having a storage rail for supporting and storing the panels in a suspended state in a parallel state, the panel shutter being above the storage rail. A chain tip guide rod is arranged, and a free end portion of the panel connecting chain extending from the panel driving sprocket to the panel storage direction side is movably loosely fitted to the chain tip guide rod. Panel shutter chain tip guide device. 4. The chain of panel shutters according to claim 2, wherein the chain tip guide rod is arranged above the space between the panel suspended by the storage rail and the bracket. Tip guidance device.