JPH1046936A - Shutter device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the panel ascent and descent operations smooth by arranging a chain, a roller for suspension, and a chain guide member on a panel storage side in a predetermined condition. SOLUTION: A chain 3 is arranged on the outside from a side end face of a panel 2, and a roller for suspension 25 is arranged on more outside than the chain 3. An upper fringe 9b of a chain guide member 9 on panel storage side has an inner section 9c in the lateral direction which is positioned in an inner part of a tooth tip circle of a sprocket for driving panel 8 and an outer section 9d which is extended in an outer part of the tooth tip circle of the sprocket 8 in continuation with it and is positioned in a travel path of the chain 3. A side fringe 9a of the guide member 9 is extended downward to prevent a hanging down part of the chain 3 from twining around the sprocket 8. The guide member 9 comes into contact with and guides the chain 3 in the direction of mesh for the sprocket 8, the direction of mesh release, and the direction of a guide rail 1. The sections 9c, 9d are positioned above a horizontal line which passes a shaft center of the sprocket 8 to release the mesh of the chain 3 from the sprocket 8 effectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a panel-type shutter device for opening and closing a shutter opening / closing opening of a building by a plurality of panels.

[0002]

2. Description of the Related Art A conventional panel-type shutter device includes a pair of left and right guide rails arranged upright on both sides of a shutter opening / closing opening, and a storage box arranged above these guide rails. The upper and lower panels that move up and down between the rails are connected to each other by roller chains on both sides thereof, and the roller chains are meshed with the panel driving sprockets in the storage box. By the rotation operation of the roller chain, the panel is successively fed into a vertical movement along a guide rail and a horizontal movement along a storage rail in the storage box. When the panel is moved laterally, hanging rollers rotatably supported on the left and right sides of the panel are rotatably supported on the storage rail so as to suspend and store the panel.

[0003]

In such a conventional panel-type shutter device, the operation of storing the panel from the guide rails to the storage box and the operation of pulling out the panel from the storage box to the guide rails are always smoothly performed. However, there is a problem that an extremely complicated panel driving device is required to obtain a smooth operation of the panel.

[0004] In particular, when the shutter-closed panel drawn out and developed between the two guide rails is rolled up and stored in the upper storage box, the panels are connected by a roller chain meshing with the panel driving sprocket and are connected to the two guide rails. Both ends are movably engaged with each other, and there is a possibility that the upper and lower stages of panels rising along the guide rails may be folded or clogged during the ascending process and the panels may not move. In this case, if left unattended, the panel drive sprocket with which the roller chain meshes is in operation, and there is a problem that a large accident such as breakage of the panel drive sprocket, the roller chain, the panel, and the like occurs. .

A conventional shutter device of this type is disclosed in, for example, Japanese Patent Publication No. 2703512. In this shutter device, each of a plurality of panels (also referred to as slats) is provided on the left and right sides. The lower end of the eye panel member is connected to the end face with a pin, and a hanging roller is rotatably supported at the upper end of the eye panel member, and a roller chain is connected to the roller shaft, whereby the panel mutual connection is achieved. Are connected in series on both the left and right sides,
There is a problem that the connection between the panels becomes very complicated.

Further, as described above, the suspending roller pivotally supported on the upper end of the eye panel member is coaxially connected to the suspending roller inside the roller chain meshed with the panel driving sprocket (both the end faces on both sides of the panel and the roller). Between the brackets on both sides of the storage box and the storage rails so that they do not interfere with the roller chain that hangs when the panel is stored. In this case, a space area for hanging the roller chain must be particularly secured, and thus, the structure becomes complicated, and the storage box becomes large and a compact receiving structure cannot be obtained.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. A chain supporting a plurality of upper and lower panels which mesh with a panel driving sprocket to vertically open and close between right and left guide rails is provided. It is possible to arrange components that do not require a special space for hanging down on the storage rail side near the panel drive sprocket during the panel storage operation, thereby reducing the size of the panel storage unit to a compact receiving structure. In addition, in the process of moving the panel, the chain can be smoothly meshed or disengaged with the panel driving sprocket, and irregular meshing of the chain with the panel driving sprocket can be prevented beforehand and surely. Highly reliable panel-type shutter device that can always perform the lifting operation smoothly and efficiently An object of the present invention is to provide.

[0008]

According to a first aspect of the present invention, there is provided a shutter device including a pair of left and right guide rails disposed on both sides of a shutter opening / closing opening, and a pair of left and right guide rails disposed above the guide rails. A panel driving sprocket, a pair of left and right chains meshed with each of the sprockets, a plurality of upper and lower panels supported by the chain to move up and down between the two guide rails, and a left and right side of each of the panels. A suspension roller that is pivotally supported, and a storage rail that rotatably supports the suspension roller of a panel that rises between the two guide rails and that passes through the sprocket and moves laterally. A system for feeding each panel into a vertical movement along a guide rail and a horizontal movement along a storage rail by a feed operation of the chain by forward and reverse rotation. In Potter device, the chain is arranged outside the left and right side end faces of the panel,
In addition, the suspension roller is disposed further outside the chain, and the storage rail side near the sprocket is connected to an inner portion located inside the addendum circle of the sprocket and to the inner portion. An outer portion extending outwardly from the tip circle of the sprocket and being located in the movement path of the chain from the sprocket toward the storage rail, and having the inner portion and the outer portion define the chain. And a panel storage side chain guide member for guiding the contact in a meshing direction and a mesh releasing direction with respect to the panel driving sprocket.

According to a second aspect of the present invention, the inner part and the outer part of the panel-guiding side chain guiding member are located above a horizontal line passing through the axis of the panel driving sprocket. is there.

According to a third aspect of the present invention, the side edge of the panel housing side chain guide member is extended downward so as to prevent the chain hanging portion from engaging with the panel driving sprocket. is there.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below. In the drawing, reference numeral 1 denotes a pair of left and right guide rails, and these guide rails 1 are composed of vertical guide rails arranged upright on both sides of a so-called shutter opening / closing opening such as a doorway of a building or a window.

Reference numeral 2 denotes a plurality of upper and lower panels for raising and lowering the guide rails 1 between the two guide rails 1. These panels 2 are shown in FIG.
And a rectangular frame 2a as shown in FIGS.
A suitable panel face plate 2b is attached to the panel.

As shown in FIGS. 3 and 4, pins (support shafts) 21 projecting outward from both side end surfaces of the panel 2 are provided on both upper sides of the panel 2.
Is rotatably inserted and connected to a panel connecting chain (hereinafter simply referred to as a chain) 3 composed of a roller chain via a sleeve-shaped attachment 24 so as to be rotatable and movable in the thrust direction.

In this manner, the plurality of panels 2 that move up and down and open and close between the two guide rails 1 are connected to the respective pins 2.
Each of the panels 2 is connected to and supported by the chain 3 outside the both end faces of the panel 2 via the first and second panels 1.

A pin 21 of each panel 2 has a hanging roller 25 located further outside the chain 3.
Are rotatably mounted. A panel roller 22 is rotatably supported on both lower sides of each panel 2.

A storage box 5 is disposed above the guide rail 1 and has a vertical bracket 5a on both left and right sides, and is located above the two guide rails 1 inside the bracket 5a. A pair of left and right panel driving sprockets 8 are pivotally supported, and the chain 3 is meshed with these panel driving sprockets 8.

The storage rail 4 is directly mounted inside the bracket 5a as shown in FIG. The storage rail 4 extends laterally from between the bracket 5a and the panel driving sprocket 8 toward the panel storage direction above a horizontal line passing through the axis of the panel driving sprocket 8. The roller 2 for suspending the panel 2 having the panel storage direction side gradually and gradually descended and inclined, and having passed the panel driving sprocket 8 toward the panel storage direction.
5 is rotatably supported.

The lower end of the storage rail 4 is interrupted at a position near the depth end in the storage box 5 at a position corresponding to the installation space of the switchgear 13, and the lower end of the storage rail 4 is interrupted. Is provided with a stopper 4a (FIG. 1) for preventing the suspension roller 25 that has rolled on the storage rail 4 from falling off.

In the above, the series of panels 2 is formed by the chain 3 by the forward and reverse rotation of the panel driving sprocket 8.
By the feeding operation, the sheet is successively transferred to a vertical movement along the guide rail 1 and a horizontal movement along the storage rail 4. When the panel 2 moves laterally toward the storage rail 4, the chain 3 between the horizontally adjacent panels 2 hangs inside the storage rail 4.

In such a panel shutter, the side near the upper end of the guide rail 1 extending into the storage box 5 is located near the lower part of the panel driving sprocket 8 and the chain 3 is abnormally bent (loose). Is provided with a chain looseness detecting device 7 for electrically detecting the chain slack.

In the vicinity of the panel driving sprocket 8 in the storage box 5, a chain guiding member for guiding the chain 3 into contact with the panel driving sprocket 8 in a proper meshing direction or a disengaging direction during the movement of the panel 2. 9 and 10 are arranged.

In these chain guide members 9 and 10, the storage rail 4 is located near the panel driving sprocket 8.
The panel storage side chain guide member 9 disposed on the side protrudes from the inside of the bracket 5a of the storage box 5 and wraps around the side of the panel driving sprocket 8 to form an upper edge 9b.
And a side edge 9a.

More specifically, the upper edge 9b of the panel storage side chain guide member 9 is provided with a laterally inward portion 9c located inside the addendum circle of the panel driving sprocket 8;
An outer portion 9d extending outward from the addendum circle of the panel driving sprocket 8 continuously to the inner portion 9c and located in the movement path of the chain 3.

Further, the side edge 9a of the panel storage side chain guide member 9 extends downward in a state in which the side edge 9a of the panel drive sprocket 8 is spaced apart from and faces the tooth tip of the panel drive sprocket 8 on the storage rail 4 side. The hanging portion of the chain 3 is prevented from being entangled with and engaged with the panel driving sprocket 8.

The panel storage side chain guiding member 9
Are formed so as to be in contact with the chain 3 and to guide the chain 3 in the direction of meshing with the panel driving sprocket 8, the direction of unmating and the direction of the guide rail 1.

On the other hand, a panel entrance / exit side chain guide member 10 arranged on the guide rail 1 side near the upper end side of the guide rail 1 has an inner portion 10a located inside the tooth tip circle of the panel driving sprocket 8. An outer portion 10b extending downward from the addendum circle of the panel driving sprocket 8 continuously to the inner portion 10a and located in the movement path of the chain 3, and moving up and down along the guide rail 1. The chain 3 is formed so as to be in contact with the chain 3 to be brought into contact with the panel driving sprocket 8 in a meshing direction and a mesh releasing direction.

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

In the vicinity of the panel entrance of the storage box 5,
A panel guide 11 is provided for smoothly guiding a panel roller 22 below each panel 2 in a panel storage direction and a panel extension direction.

A switchgear 13 is arranged in a deep space area in the storage box 5. Here, in the storage box 5, the lower end of the storage rail 4 is interrupted at a position near the depth end of the storage box 5 at a position corresponding to the installation space of the switchgear 13. The switchgear 13 is disposed by utilizing a deep space area in the storage box 5 that does not extend.

As shown in FIG. 1, the switchgear 13 has an integral mounting base 13a, and has vertically long mounting holes 13b at both upper and lower sides of the mounting base 13a.

Then, in the back space area in the storage box 5, the switch 13 is attached to the bracket 5a on one side thereof.
At the time of the mounting, a bolt 28 is inserted into the long hole 13b of the mounting base 13a of the switchgear 13, and a nut 29 is screwed into the bolt 28 to tighten the mounting base 13a to the bracket 5a. It is fixed. Therefore, if the nut 29 is loosened, the slot 1
The mounting position of the switchgear 13 can be adjusted vertically by an amount corresponding to the length of 3b.

The switchgear 13 has an output sprocket 130 as shown in FIG. 1, and an interlocking sprocket 14 is linked to 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 5a via a bearing 30. Bearing body 3
As shown in FIG. 1, reference numeral 0 denotes a notch 5b provided in the bracket 5a, which is fitted and mounted so as to be position-adjustable. Therefore, the rotation axis connecting the interlocking sprocket 14 and the first transmission sprocket 17 can adjust the distance between the interlocking sprocket 14 and the panel driving sprocket 8.

The panel driving sprocket 8 has a second transmission sprocket 18 coaxially, and an endless transmission chain 19 is meshed and wound around the second transmission sprocket 18 and the first transmission sprocket 17. The rotation output of the switch 13 is transmitted to the panel driving sprocket 8.

Here, the switchgear 13, the interlocking sprocket 14, and the first transmission sprocket 17 are substantially the same as the panel 2 at the storage position suspended by the storage rail 4 in the deep space area inside the storage box 5. They are arranged in parallel up and down directions.

With this arrangement, the storage box 5
Switch 13 and power transmission sprocket (interlocking sprocket 14 and first transmission sprocket 17) in the vehicle
Installation space can be minimized. Therefore, the installation space does not need to be particularly large, and the installation space of the storage box 5 is reduced as compared with the case where the switchgear 13 is externally attached to the storage box 5. Can be greatly reduced.

A chain tip guide bar 6 parallel to the storage rail 4 is arranged at a position above the storage rail 4 in the storage box 5. The chain tip guide rod 6 is disposed by effectively utilizing an upper space between both end surfaces of the panel 2 suspended by the storage rail 4 and the bracket 5a.

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

As a result, the free end 3a of the chain 3 moves along the chain leading guide bar 6 when the panel 2 moves up and down, so that the panel 2 first moves onto the storage rail 4 during the panel storing operation. The length from the pin 21 to the free end 3a of the chain 3 can be reduced.

Accordingly, the free end side of the chain 3 is not greatly loosened particularly when the panel is stored, so that the chain 3 can be reliably prevented from being entangled during the panel elevating operation.

Also, as described above, the free end 3 of the chain 3
Since a is always moored to the chain tip guide rod 6, the chain 3 does not come off from the panel driving sprocket 8 when the panel is extended, and the safety and reliability are greatly improved.

Further, as described above, the chain tip guide rod 6 disposed above the storage rail 4 is a U-shaped chain that connects the panels 2 suspended in parallel to each other and suspended from the storage rail 4. Because it does not interfere with the bending and drooping,
It is not necessary to provide a special space for disposing the chain tip guide rod 6 in the storage box 5, so that a compact receiving 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 is
Interlocking sprocket 14 from output sprocket 130 via interlocking chain 15 → first transmission sprocket 17 →
The power is transmitted from the transmission chain 19 to the second transmission sprocket 18 to the panel driving sprocket 8, whereby the panel driving sprocket 8 is rotated clockwise in FIG.

Thus, the panel driving sprocket 8
The panel 2 between the guide rails 1 is pulled up through the chain 3 meshed with the panel. Panel 2
When the upper end of the panel 2 reaches the panel driving sprocket 8, the upper end of the panel 2 moves circularly with the chain 3 along the pitch circumference of the panel driving sprocket 8 and the storage rail 4.
Is guided in the direction of.

At this time, the panel roller 2 below the panel 2
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 manner, the upper end of the panel 2 that has moved up between the two guide rails 1 moves along the tip of the panel driving sprocket 8 toward the storage rail 4 (panel storage direction). When the panel roller 22 is guided obliquely upward by the panel guide 11,
When the panel 2 passes through the panel driving sprocket 8 toward the panel storage direction, the panel 2 moves while maintaining the vertical posture in the state in which the lateral shake is prevented.

After the panel 2 has passed the panel driving sprocket 8 in the panel storage direction, the suspension rollers 25 on both upper sides of the panel 2 move onto the storage rail 4. At this time, the suspension roller 25 rolls on the storage rail 4 by its inclination, so that the panel 2 is automatically suspended inside the storage box 5 by the downward inclination along the storage rail 4 in the suspended state of the parallel posture. Go to

When the suspension roller 25 of the panel 2 which has first moved onto the storage rail 4 reaches the inclined lower end of the storage rail 4, the suspension roller 25 is moved to the lower end of the storage rail 4. Abuts against the stopper 4a provided in the storage rail 4 to prevent the storage rail 4 from falling off.

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

In the above, the panel 2 is the guide rail 1
When the panel drive sprocket 8 first engages with the chain 3 when the panel is spliced from the vertical movement along the storage rail 4 to the horizontal movement along the storage rail 4, the panel extends so as to be guided in the engagement direction. Since the entrance / exit chain guide member 10 is arranged, an inner portion 10a of the panel entrance / exit chain guide member 10 which is located inside the tip circle of the panel driving sprocket 8 and the panel driving sprocket 8 The chain 3 is reliably guided in a predetermined direction with respect to the panel driving sprocket 8 by the outer portion 10b located outside the addendum circle and in the movement path of the chain 3.

Further, even if the chain 3 and the panel driving sprocket 8 are abnormally engaged due to some unexpected action, the panel storage side chain guide member 9 is provided on the panel storage side where the engagement is completed. Since it is disposed, the panel storage side chain guide member 9 has an inner portion 9c which is located inside the addendum circle of the panel driving sprocket 8 and above a horizontal line passing through the axis of the sprocket 8. An outer portion 9d is located outside the tip circle of the panel driving sprocket 8 and in the movement path of the chain 3 that enters and exits the storage box 5 and is located above a horizontal line passing through the axis of the panel driving sprocket 8. Since the chain 3 is guided in contact with the panel driving sprocket 8 in the proper meshing direction and the meshing releasing direction,
The chain 3 is securely detached from the panel driving sprocket 8, and the above-described storing operation of the panel 2 is smoothly performed.

Here, the inner part 9c and the outer part 9d
The functions and effects of are described in more detail. Chain 3
Since the inner portion 9c located inside the addendum circle of the panel driving sprocket 8 and the outer portion 9d located outside the addendum circle come into contact with each other, this contact area is extremely small. Enlargement is performed, and the disengagement is performed extremely reliably and efficiently, and unnecessary force generated at the time of disengagement is not concentrated on one place in the chain 3 and the panel storage side chain guide member 10, so that unnecessary damage is prevented. It is unlikely to occur and its life is extremely long. In particular, since such contact always occurs at the time of the above-mentioned reverse starting, such an effect is extremely important.

Further, since the inner portion 9c comes into contact with the root of the meshing position of the chain 3 meshing with the panel driving sprocket 8, the meshing is released, so that the meshing releasing effect is extremely remarkable.

Further, the inner part 9c and the outer part 9d
Are located above a horizontal line passing through the axis of the panel driving sprocket 8, so that the disengagement of the chain 3 from the panel driving sprocket 8 can be performed very efficiently and effectively. Moreover, the inner part 9c and the outer part 9
Since d is located near the starting end of the storage rail 4 when viewed from the side as shown in FIG. 1, the engagement of the chain 3 can be released at an extremely effective timing.

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

As described above, when each panel 2 changes its direction from the vertical movement along the guide rail 1 to the horizontal movement along the storage rail 4, at the initial stage of the horizontal movement, the preceding panel 2 and the subsequent panel 2 The chain 3 connecting the chain 3 hangs down, but the chain hang down portion is guided downward along the side edge 9a of the panel storage side chain guide member 9, so that the hang down portion of the chain 3 is used for panel driving. Entanglement with the sprocket 8 can be reliably prevented, so that damage to the storage rail 4 and elevation of the panel 2 are not hindered. This series of operations is repeated each time the subsequent panel 2 reaches the vicinity of the storage rail 4.

Next, the switchgear 13 is moved from the above-mentioned panel storage state.
When the panel drive sprocket 8 is started in reverse rotation, the panel drive sprocket 8 is rotationally driven in the counterclockwise direction in FIG. 1 by the rotation output, so that it is mounted on the storage rail 4 via the chain 3 meshed with the panel drive sprocket 8. Are sequentially pulled out in the feeding direction.

At this time, in the vicinity of the panel driving sprocket 8, first, the chain 3 is securely guided to the predetermined meshing position of the panel driving sprocket 8 by the side edge 9 a and the upper edge 9 b of the panel storage side chain guide member 9. Is done. Further, the chain 3 is smoothly separated from the panel driving sprocket 8 by the other panel entrance / exit side chain guide member 10.

That is, the chain 3 has an inner portion 10a located inside the tip circle of the panel driving sprocket 8 and an outer portion 10b located outside the tip circle of the panel driving sprocket 8. Because it will come in contact with two parts
This contact area is greatly enlarged, and the disengagement is performed very reliably and efficiently, and the excessive force generated at the time of disengagement does not concentrate on one place in the chain 3 and the panel entrance / exit-side chain guide member 10. And useless damage hardly occurs, and its life is extremely long. In particular, since the contact between the two always occurs at the time of the reverse starting, such an effect is extremely important.

Further, since the inner portion 10a comes into contact with the root of the meshing position of the chain 3 meshing with the panel driving sprocket 8, the meshing is released, so that the meshing releasing effect is extremely remarkable.

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, the panel 2 becomes a scandal in which it does not move, and if it is left as it is, a large accident occurs. Is a factor.

However, in this case, since abnormal bending occurs in the chain 3, the chain slack detecting device 7 detects the abnormal bending, and the occurrence of a large accident due to the folding or clogging of the panels 2 or the like. Can immediately respond to the scandal.

[0063]

As described above, according to the first aspect of the present invention, the chains meshing with the panel driving sprocket and supporting a plurality of panels are arranged outside the left and right end surfaces of each panel. And, since the hanging roller of each panel is arranged further outside of the chain, the panel raised between the left and right guide rails by the feed operation of the chain by the rotation of the panel driving sprocket passes through the panel driving sprocket. When moving laterally, the chain can be hung inside the storage rail that rotatably supports the hanging roller of the panel, so that the storage rail is arranged so as not to hinder the hanging of the chain. can do. Therefore, it is not necessary to specially secure a dedicated space area for hanging the chain when the panel is moved laterally as in the conventional case. is there. Moreover, a panel storage side chain guide member is disposed on the storage rail side near the panel drive sprocket, and the panel storage side chain guide member includes an inner portion located inside the tooth tip circle of the panel drive sprocket, An outer portion extending outwardly from the addendum circle of the panel driving sprocket to be continuous with the inner portion and located in a movement path of the chain from the sprocket toward the storage rail; And the outer portion is configured to contact and guide the chain in the meshing direction and the unmating direction with the panel driving sprocket, so that when the panel is laterally moved from the panel driving sprocket to the storage rail direction or the opposite direction. Of the chain to the panel drive sprocket by the inner portion and the outer portion of the panel storage side chain guide member. It is possible to smoothly contact induced proper engagement direction and disengagement direction. For this reason, irregular engagement of the chain with the panel driving sprocket can be prevented beforehand and surely, and the panel can be smoothly moved at all times, thereby improving the reliability of the panel-type shutter device. is there.

According to the second aspect of the present invention, the inner and outer portions of the panel-guiding-side chain guiding member are located above the horizontal line passing through the axis of the panel driving sprocket. There is an effect that the chain engaged with the sprocket is not lifted by the inner part and the outer part of the panel storage side chain guide member.

According to the third aspect of the present invention, the side edge of the panel storage side chain guide member projects from the bracket supporting the panel driving sprocket and extends around the panel driving sprocket to extend downward. Therefore, there is an effect that the hanging portion of the chain that hangs down when the panel moves laterally from the sprocket toward the storage rail does not become entangled with the panel driving sprocket.

[Brief description of the drawings]

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

FIG. 2 is a schematic exploded perspective view of the panel drive system in FIG.

FIG. 3 is a partially enlarged longitudinal sectional view showing a meshing state between a panel driving sprocket and a roller chain.

FIG. 4 is a partial longitudinal sectional view of the panel.

FIG. 5 is a vertical sectional view taken along line AA of FIG. 4;

FIG. 6 is a partial front view showing a part where a panel and a roller chain are joined together.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Guide rail 2 Panel 3 Chain 4 Storage rail 5a Bracket 8 Panel drive sprocket 9 Panel storage side chain guide member (chain / sprocket guide device) 9a Side edge of panel storage side chain guide member 9c Panel storage side chain guide member Part 9d Outer part of the chain guide member on the panel storage side 25 Suspension roller

Claims (3)

[Claims] 1. A pair of left and right guide rails arranged on both sides of a shutter opening / closing opening, a pair of left and right panel driving sprockets arranged above these guide rails, and a pair of left and right meshes with each of the sprockets. A plurality of upper and lower panels supported by the chain to move up and down between the two guide rails, a hanging roller pivotally supported on the left and right sides of each of the panels, and a gap between the two guide rails. A storage rail that rotatably supports the hanging roller of a panel that rises and moves laterally through the sprocket, and feeds each of the panels by a feed operation of the chain by forward and reverse rotation of the sprocket. In the shutter device for transferring the vertical movement along the horizontal movement and the horizontal movement along the storage rail, the outer side than the left and right side end surfaces of the panel The chain is arranged, and the hanging roller is arranged further outside the chain.On the storage rail side near the sprocket, an inner part located inside the tip circle of the sprocket and An outer part extending outwardly from the tip circle of the sprocket continuously to the inner part and located in a movement path of the chain from the sprocket toward the storage rail, and having an inner part and an outer part. And a panel storage-side chain guide member that guides the chain in contact with the panel driving sprocket in a meshing direction and a mesh releasing direction with the panel driving sprocket. 2. The shutter device according to claim 1, wherein an inner portion and an outer portion of the panel-guiding-side chain guiding member are located above a horizontal line passing through an axis of the panel driving sprocket. . 3. The shutter device according to claim 1, wherein the side edge of the panel storage side chain guide member is extended downward to prevent the chain hanging portion from engaging with the panel driving sprocket. .