Shutter device for building

Abstract

To prevent defects such as scratches on a curtain surface of a shutter curtain 3 spirally wound around a winding body 4 and unpleasant metallic sounds from occurring more effectively than a conventional one-piece sheet material under clamping.SOLUTION: First and second sheet material supply devices 10, 11 are provided, as sheet material supply means W, in a storage space S of a winding body 4 so that first and second sheet materials 10a, 11a are supplied between adjacent curtain surfaces in an overlapping state.SELECTED DRAWING: Figure 15

Description

[Technical Field]

[0001] The present invention relates to the technical field of shutter devices for buildings that are installed at openings such as entrances and exits of buildings such as buildings, houses, garages, etc. [Background technology]

[0002] Generally, shutter devices are installed for buildings to open and close openings such as entrances and exits of buildings such as buildings, houses, garages, etc. Such shutter devices are comprised of various component devices such as guide rails provided on the left and right sides of the opening, a shutter curtain that is guided to open and close along the guide rails, and a winding body that is arranged above the opening and winds up the shutter curtain.However, with such shutter devices, the shutter curtain is wound in a spiral shape so that it directly abuts (contacts) the winding body, so there is a risk that adjacent curtain surfaces may rub against each other or become misaligned, resulting in scratches on the curtain surfaces or the generation of metallic sounds. Therefore, a conventional shutter curtain that is wound around a winding body has been known in which a sheet body is interposed between adjacent curtain surfaces to prevent the adjacent curtain surfaces from coming into direct contact with each other (see, for example, Patent Document 1). This conventional device is configured so that, during the process of the shutter curtain being wound onto the winding body, the sheet material unwound from the sheet winding device located inside the shutter case is interposed between adjacent curtains, thereby preventing adjacent curtain surfaces from coming into direct contact with each other and thereby suppressing scratches on the curtain surfaces and the generation of metallic noises. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-207184 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the conventional method, since a single sheet material is simply inserted between adjacent curtain surfaces, there are cases where it is not possible to sufficiently prevent damage to the curtain surfaces or the generation of metallic noise. Therefore, attempts have been made to increase the thickness of the sheet material, but there are problems such as the fact that simply increasing the thickness of the sheet material does not achieve a satisfactory level of effect in preventing damage to the curtain surfaces or the generation of metallic noise, and these are the issues that the present invention aims to solve. [Means for solving the problem]

[0005] The present invention was created in consideration of the above-mentioned actual situation and with the aim of solving these problems.The invention of claim 1 is a shutter device for buildings that comprises guide rails provided on the left and right sides of an opening such as an entrance / exit of a building, a shutter curtain that is guided up and down by the guide rails to open and close the opening, and a winding body that is arranged in a storage space above the opening and around which the shutter curtain is wound in a spiral shape, and is provided with a sheet material supply means in the storage space of the winding body that supplies sheet material to be sandwiched between adjacent curtain surfaces of the spiral shutter curtain in conjunction with the shutter curtain being wound in a spiral shape around the winding body, wherein the sheet material supply means supplies a plurality of sheet materials, and at least two of the supplied sheet materials are supplied in a stacked state between the curtain surfaces. The invention of claim 2 is a shutter device for a building as described in claim 1, characterized in that the sheet material supply means are first and second sheet material supply devices that each supply sheet material, and the first and second sheet material supply devices are arranged at the same position in the left-right direction in the storage space but at different positions in the up-down and / or front-to-back directions. The invention of claim 3 is a shutter device for buildings as described in claim 2, characterized in that the storage space for the winding body is provided with left and right brackets on which the winding body is supported, a horizontal frame material supported between the left and right brackets, and a magnolia frame material provided at the intake port of the shutter curtain, and the first and second sheet material supply devices are attached to either the horizontal frame material or the magnolia frame material via attachment members. The invention of claim 4 is a shutter device for buildings as described in claim 2, characterized in that the storage space for the winding body is provided with left and right brackets on which the winding body is supported, a horizontal frame material supported between the left and right brackets, and a magnolia frame material provided at the intake port of the shutter curtain, and the first sheet material supply device is attached to the magnolia frame material and the second sheet material supply device is attached to the horizontal frame material. The invention of claim 5 is a shutter device for buildings described in claim 3 or 4, characterized in that the horizontal frame material is a reinforcing frame material with a vertical piece portion on the back side, and when the sheet material supplier is attached to the horizontal frame material, the sheet material supplier is attached to the vertical piece portion on the back side of the horizontal frame material. The invention of claim 6 is a shutter device for buildings as described in claim 5, characterized in that the storage space for the rolled-up body is covered with a shutter case, the edge portions of the upper and lower case panel panels of the shutter case are fastened to the horizontal frame member in a state where they overlap front to back, and when the sheet material supply device is attached to the horizontal frame member, the sheet material supply device is fastened to the vertical piece on the back side of the horizontal frame member at a position that avoids the fastening position of the upper and lower case panel panels. The invention of claim 7 is a shutter device for a building described in claim 3, characterized in that the first and second sheet material suppliers are each provided with a winding spring mechanism that stores energy to wind up the sheet material that is unwound from the winding body side onto the rotating roller when the shutter curtain moves to close, and the first and second sheet material suppliers are each provided with a rotation prevention device that spans the first and second sheet material suppliers to prevent the rotating roller from rotating due to the stored force of the winding spring mechanism before the first and second sheet material suppliers are used. The invention of claim 8 is a shutter device for buildings as described in claim 2, characterized in that the storage space for the winding body is provided with left and right brackets on which the winding body is supported, a horizontal frame member supported between the left and right brackets, and a plaster frame member provided at the intake port of the shutter curtain, the horizontal frame member being a rectangular tubular reinforcing frame member with vertical pieces on the front and back sides, and when at least one of the first and second sheet material supply devices is attached to the horizontal frame member, the attached sheet material supply device is attached to the vertical piece on the back side of the horizontal frame member, and the vertical piece on the front side of the vertical frame member has an opening window portion formed therein for fastening the sheet material supply device to the vertical piece on the back side. The invention of claim 9 is a shutter device for buildings as described in claim 8, characterized in that the storage space for the rolled-up body is covered with a shutter case, and a case panel is fastened to the front vertical piece of the horizontal frame material. [Effects of the Invention]

[0006] By adopting the invention of claim 1, when the shutter curtain is rolled up, the sheet material supplied from the sheet material supply means becomes sandwiched between adjacent curtain surfaces. In this case, at least two of the multiple sheet materials supplied from the sheet material supply means are supplied in a stacked state between the curtain surfaces, which makes it possible to highly effectively avoid problems such as damage to the curtain surfaces of the shutter curtain and the generation of metallic sounds. By adopting the invention of claim 2, the sheet material supply means is composed of first and second sheet material supply devices that each supply sheet material, and the first and second sheet material supply devices are arranged in the same position in the left-right direction in the storage space but in different positions in the up-down and / or front-to-back directions, resulting in a compact arrangement of the first and second sheet material supply devices within the shutter case. By adopting the invention of claim 3, the first and second sheet material supply devices are attached to either the horizontal frame material or the plaster frame material supported between the left and right brackets on which the winding body is supported, thereby enabling the first and second sheet material supply devices to be firmly and securely attached in a compact manner. By adopting the invention of claim 4, the first and second sheet material supply devices are separately attached to the horizontal frame and the magus frame supported between the left and right brackets on which the winding body is supported, thereby enabling the first and second sheet material supply devices to be firmly and securely attached in a compact manner. By adopting the invention of claim 5, the horizontal frame material is made into a reinforcing frame material having a vertical piece portion on the back side, and when the sheet material supply device is attached to the horizontal frame material, the sheet material supply device is attached to the vertical piece portion on the back side of the horizontal frame material, so that the sheet material supply device can be attached to the horizontal frame material from the front side, thereby improving workability. By adopting the invention of claim 6, when the storage space for the winding body is covered with a shutter case and the shutter case is fastened to the horizontal frame member in a state where the edge portions of the upper and lower case panel panels overlap each other front to back, and the sheet material supply device is attached to the horizontal frame member, the sheet material supply device is fastened to the horizontal frame member at a position that avoids the fastening positions of the upper and lower case panel panels, and as a result, the sheet material supply device can be attached to the horizontal frame member as an attachment operation separate from the attachment of the upper and lower case panel panels, improving workability. By adopting the invention of claim 7, the first and second sheet material supply devices are each provided with a winding spring mechanism that stores energy so as to wind up the sheet material that is unwound from the winding body side onto the winding roller when the shutter curtain moves to close, and the first and second sheet material supply devices are each provided with a rotation prevention device that prevents the winding roller from rotating due to the stored force of the winding spring mechanism before the first and second sheet material supply devices are used, as a single device that spans the first and second sheet material supply devices.As a result, the work required to bring the first and second sheet material supply means into a usable state is simplified, and workability is improved. By adopting the invention of claim 8, the horizontal frame member supported between the left and right brackets on which the winding body is supported in the storage space for the winding body is a reinforcing frame member having a rectangular cylindrical shape with vertical pieces on the front and back sides, and when at least one of the first and second sheet material supply devices is attached to the vertical piece on the back side of the horizontal frame member, an opening window portion for fastening the sheet material supply device is formed in the vertical piece on the front side of the vertical frame member and the vertical piece on the back side.As a result, the sheet material supply device can be attached to the vertical piece on the back side of the horizontal frame member, which is a reinforcing frame member having a rectangular cylindrical shape, through the opening window portion, improving workability. By adopting the invention of claim 9, the storage space for the winding body is covered with a shutter case, and a case panel is fastened to the front vertical piece where the opening window portion of the horizontal frame material is formed.As a result, the opening window portion provided in the front vertical piece for attaching a sheet material supply device is covered with the case panel, and the visibility of the horizontal frame material where the opening window portion is formed is not impaired. [Brief explanation of the drawings]

[0007] [Figure 1] This is a front view of the building shutter device with the case face plate omitted. [Figure 2] FIG. 2 is a vertical cross-sectional side view of a shutter device for a building in a fully open state. [Figure 3] FIG. 2 is a vertical cross-sectional side view of a shutter device for a building in a fully closed state. [Figure 4] FIG. 2 is a vertical cross-sectional side view of the shutter case portion in a fully open state. [Figure 5] This is a front cross-sectional view of the shutter case portion with the case face plate omitted. [Figure 6] 10(A) and 10(B) are a front view and a side view of a first sheet material supplying device. [Figure 7] FIG. 3 is a cross-sectional front view of a first sheet material supplier. [Figure 8] This is a vertical cross-sectional side view of the horizontal frame material portion. [Figure 9] FIG. 10 is a vertical cross-sectional side view of a shutter device for a building according to a second embodiment. [Figure 10]FIG. 2 is a vertical cross-sectional side view of the shutter case portion in the fully open state. [Figure 11] FIG. 2 is a cross-sectional front view of the shutter case portion with the case face plate omitted. [Figure 12] 1A and 1B are a front view and a side view of the sheet material supply means. [Figure 13] This is a vertical cross-sectional side view of the horizontal frame material portion. [Figure 14] (A) and (B) are a front view and a side view of the same horizontal frame material. [Figure 15] FIG. 11 is a cross-sectional side view of a shutter case portion of a third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a shutter device for a building that is erected at an opening E such as an entrance or exit of a building. The shutter device 1 is of an exposed type and is configured using various components and devices, such as guide rails 2 provided on the left and right sides of the opening E, a shutter curtain 3 that opens and closes the opening E by being guided up and down by the guide rails 2, a winding body 4 that is arranged in a storage space S secured in a ceiling H above the opening E and winds the shutter curtain 3 in a spiral shape, an electric opening / closing device 5 that drives the winding body 4 forward and backward, and a shutter case 6 that covers (encloses) the storage space S, all of which are conventional. Although this embodiment is designed for a case fitting in which a shutter case 6 is formed, the present invention can also be implemented in an exposed fitting in which no shutter case 6 is provided.

[0009] The winding body 4 has its left and right end edges supported by left and right brackets 7 attached to the main body side, and the shutter case 6 has upper and lower case panel plates 6a and 6b that are installed to house the winding body 4 and the opening / closing mechanism 5, and each of the left and right end edges of a magnesia frame material 8 that forms the magnesia section M that serves as the outlet for the shutter curtain 3, and a horizontal frame material 9 to which the tip edges 6aa and 6ba arranged on the front side of the case of the upper and lower case panel plates 6a and 6b are attached as described below, are attached to the left and right brackets 7.

[0010] A pair of sheet material supply means W of the present invention are arranged on the left and right sides as viewed from the front inside the storage space S covered by the shutter case 6, and in this embodiment, each of the sheet material supply means W is composed of first and second sheet material supply devices 10 and 11 that are separately provided. In this case, the left and right sheet material supply means W have the same configuration except that their installation positions (mounting positions) are different on the left and right, so hereinafter, only one of the sheet material supply means W will be described. Furthermore, the aforementioned sheet material supply means W is composed of first and second sheet material supply devices 10, 11 which respectively pay out one sheet of first and second sheet material 10a, 11a. The first and second sheet material supply devices 10, 11 have the same structure, the only difference being whether they are attached to a horizontal frame material 9 or a magnesa frame material 8. Therefore, next, the structure of the first sheet material supply device 10 will be explained, and an explanation of the second sheet material supply device 11 will be omitted. In this embodiment, the sheet materials 10a and 11a are made of polyester-based resin material, but this is not limited to this, and it goes without saying that any suitable synthetic resin material can be used, such as polyamide-based resin material, polyolefin-based resin material, or the like.

[0011] The first sheet material supply device 10 is attached to the horizontal frame member 9 via an attachment member (attachment bracket) 12, and a support shaft 10b is supported on the left and right leg portions 12a of the attachment member 12, and a rotating roller (winding roller) 10c is rotatably supported on the support shaft 10b via bearings 10ca, and the first sheet material 10a, whose leading edge is attached to the winding body 4, is spirally wound around the rotating roller 10c. Furthermore, a coil spring machine 10d is interposed between the rotating roller 10c and the support shaft 10b, and is energized (biased) in the direction of winding up the unwound first sheet material 10a.By being configured in this manner, the first sheet material supply device 10 is configured so that, in conjunction with the winding onto the winding body 4 when the shutter curtain 3 changes from a fully closed state to a fully open state, the first sheet material 10a is unwound against the stored force of the coil spring machine 10d and supplied so as to be clamped between adjacent curtain surfaces, and in conjunction with the unwounding of the shutter curtain 3 from a fully open state to a fully closed state, the first sheet material 10a unwound from between the adjacent curtain surfaces is subjected to the stored force of the coil spring machine 10d and wound spirally around the rotating roller 10c.

[0012] The first sheet material supply device 10 configured as described above must maintain a pre-use state in which, at the factory shipment stage, the first sheet material 10a is wound over its entire length around the rotating roller 10c and the coil spring machine 10d is energized (biased) to wind up the entire length of the first sheet material 10a. For this reason, a rod-shaped anti-rotation device 10e is provided penetrating between the rotating roller 10c and the support shaft 10b, and the penetrating tip 10ea of ​​the anti-rotation device 10e is bent to prevent it from accidentally coming off. After being attached and set in a predetermined state, the tip 10ea is stretched using an appropriate tool and then removed, freeing the support shaft 10b and the rotating roller 10c to enter a usable state in which the stored force of the coil spring machine 10d is exerted.

[0013] As described above, the first sheet material supplier 10 is attached to the horizontal frame member 9, while the second sheet material supplier 11 is attached to the magnesia frame member 8. In this case, the first and second sheet material suppliers 10, 11 are attached in the same position in the left-right direction but in different positions in the front-to-back and up-to-down directions, and the first and second sheet materials 10a, 11a fed out from the first and second sheet material suppliers 10, 11 aligned and attached in this way are overlapped (laminated) at the same position on the winding body 4, and by configuring in this way, the first and second sheet materials 10a, 11a are supplied from the corresponding first and second sheet material suppliers 10, 11 in a state where they are laminated between adjacent curtain surfaces in conjunction with the shutter curtain 3 being wound from the fully closed state to the fully open state.

[0014] The mounting member 12 for mounting the first and second sheet material supply devices 10, 11 has its spanning portion 12b attached to the horizontal frame material 9 or the magnesia frame material 8 via a screw 12c, which is an example of a fastening device. When mounted to the horizontal frame material 9, the horizontal frame material 9 functions as a reinforcing frame on the front side of the shutter case 6, but the horizontal frame material 9 has a hat-shaped cross section and is arranged between the left and right brackets 7 in a vertical position with the bottom hat piece portion becoming the vertical piece portion 9a on the back side. The first sheet material supplying device 10 is attached to the rear vertical piece 9 a of the horizontal frame 9 via an attachment member 12 .

[0015] In this case, the mounting member 12 has the spanning portion 12b fastened to the back of the rear vertical piece 9a via a screw 12c which is a fastening device, but the fastening position is set so that the portions where the tip edge portions 6aa, 6ba of the upper and lower case panel 6a, 6b overlap (stacking) with each other at the front and rear of the rear vertical piece 9a are in a position (upper position in this embodiment) that avoids the position where the mounting member 12 is fastened to the rear vertical piece 9a via the screw 6c which is a fastening member. By configuring the first sheet material supply device 10 in this manner, prior to attaching the upper and lower case panel 6a, 6b, the first sheet material supply device 10 is fastened to the rear side vertical piece 9a with a screw 12c via the mounting member 12, and then the leading edge portions 6aa, 6ba of the upper and lower case panel 6a, 6b are attached to each other with a screw 6c, so that the first sheet material supply device 10 can be easily attached from the front side.

[0016] In this embodiment configured as described, in the shutter device 1 for a building, which allows an opening E of an entrance or exit or the like to be opened and closed by a shutter curtain 3 that moves open and closed while being guided by a guide rail 2, when the shutter curtain 3 is wound onto the winding body 4, the sheet material supplied from the sheet material supply means W becomes sandwiched between adjacent curtain surfaces.In this case, the sheet material supply means W is provided with first and second sheet material supplies 10, 11, and the first and second sheet materials 10a, 11a supplied from these first and second sheet material supplies 10, 11 are supplied in a stacked state between the curtain surfaces, which highly effectively prevents problems such as damage to the curtain surface of the shutter curtain 3 and the generation of metallic sounds.

[0017] Incidentally, in the process of creating this invention, an attempt was made to make the thickness of the sheet material supplied between adjacent curtain surfaces twice as thick as conventional ones, but this did not have a significant effect in preventing problems such as metallic sounds caused by friction between the curtain surfaces and scratches on the curtain surfaces when compared to conventional cases where only one thin sheet material was supplied, and it is therefore assumed that a thicker sheet material is necessary.However, doing so would create the problem of the winding diameter of the shutter curtain 3 relative to the winding body 4 becoming larger, but if a larger winding diameter does not cause any problems, a thicker sheet material can be used. In contrast, it was found that the present invention, in which two first and second sheet materials 10a, 11a are supplied between the curtain surfaces in an overlapping state, is effective in preventing problems such as metallic noise caused by friction between the curtain surfaces and scratches on the curtain surfaces, leading to the completion of the present invention. Although the cause of this is unclear, it is assumed that in the case of two sheet materials as in this embodiment, when adjacent curtain surfaces rub against each other, the phenomenon of friction between the adjacent sheet material surfaces occurs in the case of the present invention, which greatly contributes to eliminating the conventional problems, but the exact cause will be elucidated and will be left to future research.

[0018] Furthermore, in this device, the first and second sheet material supply devices 10, 11 are arranged at the same position in the left-right direction in the storage space S of the winding body 4, but at different positions in the up-down and / or front-to-back directions, resulting in a compact arrangement of the first and second sheet material supply devices 10, 11 within the storage space S. In this case, the first and second sheet material supply devices 10, 11 are separately attached via mounting members 12 to the horizontal frame member 9 and the magnesia frame member 8 supported between the left and right brackets 7 on which the winding body 4 is supported, and as a result, the first and second sheet material supply devices 10, 11 can be firmly and securely attached efficiently and compactly.

[0019] Furthermore, the horizontal frame 9 to which the first sheet material supplier 10 is attached is a reinforcing frame having a vertical piece 9a on the back side, and the first sheet material supplier 10 is attached to this rear vertical piece 9a, so that the reinforced attachment of the first sheet material supplier 10 can be easily achieved, and in this case the storage space S for the winding body 4 is covered by the shutter case 6. The rear vertical piece 9a of the horizontal frame 9 is fastened not only to the first sheet material supplier 10 but also to the leading edge portions 6aa, 6ba of the upper and lower case face plates 6a, 6b of the shutter case 6 so that they overlap front to back, but in this case the first sheet material supplier 10 is fastened to the rear vertical piece 9a of the horizontal frame 9 at a position that avoids the fastening positions of the upper and lower case face plates 6a, 6b in the vertical direction, and as a result, the attachment of the first sheet material supplier 10 to the horizontal frame 9 can be performed as a separate attachment operation from the attachment of the upper and lower case face plates 6a, 6b, improving workability.

[0020] Of course, the present invention is not limited to the above-described embodiment, and the sheet material supply means W may be configured such that both the first and second sheet material supply devices 10, 11 are attached together to the horizontal frame material 9 as in the second embodiment described below. Of course, they may also be attached together to the magnesia frame material 8. The second embodiment shown in Figures 9 to 14 is designed to be installed inside the ceiling, and the horizontal frame member 13 supported between the left and right brackets 7 is a rectangular cylindrical frame member in which a U-shaped member is fitted into the recessed portion of the hat-shaped member used in the first embodiment.An attachment member 14 for attaching the sheet supply means W is attached to the rear vertical piece 13a using a fastening member, i.e., a screw 14c, while the upper and lower case panel panels 6a, 6b, which are overlapped with each other, at the leading edge portions 6aa, 6ba, are attached to the front vertical piece 13b via a screw 6c.

[0021] In this case, the mounting member 14 is formed long in the vertical direction, and is configured so that the first and second sheet material supply devices 10, 11 can be mounted together in a vertically inline configuration by supporting the support shafts 10b, 11b vertically on the leg pieces 14a. The straddling piece 14b of the mounting member 14 to which the first and second sheet material supply devices 10, 11 are thus mounted is mounted to the rear vertical piece 13a of the horizontal frame member 13 with screws 14c, and in this case, the front vertical piece 13b has an opening window 13c formed therein so that the screws 14c can be mounted from the front side, thereby improving workability. In this device, a rotation prevention device 15 is provided to prevent the coil spring 10d provided on the first and second sheet material supply devices 10, 11 from unwinding before use, and the rotation prevention device 15 is provided in a state where it penetrates from the spindle 10b of the upper first sheet material supply device 10 to the spindle 11b and rotating rollers 10c, 11c of the lower second sheet material supply device 11, and is configured so that it can be removed by straightening the bent tip portion 15a that penetrates. With this configuration, in order to put the first and second sheet material supply devices 10, 11 into a usable state, it is necessary to remove only one rotation prevention device 15 instead of two, improving workability.

[0022] Furthermore, the present invention can also be implemented as a third embodiment shown in Figure 15. This is the same as the second embodiment, but is installed inside the ceiling, and the first and second sheet material feeders 10, 11 are separately attached to the horizontal frame member 13 and the magnesia frame member 8 of the second embodiment, and the present invention can also be implemented in this manner. Conversely, although not shown, the present invention can also be implemented by attaching a sheet material supply means W to which the first and second sheet material supply devices 10, 11 of the second embodiment are attached together to either the horizontal frame material 9 of the first embodiment or the magnesia frame material 8.

[0023] In this way, the present invention can be implemented in the various embodiments described above, but in the case of an exposed specification in which the shutter case 6 is not provided, the ceiling part H becomes the space for arranging the winding body 4, and in such a case, the present invention can also be implemented by attaching the sheet material supply means W to a member on the body side. [Industrial Applicability]

[0024] The present invention can be used as a shutter device for buildings that is attached to openings such as entrances and exits of buildings such as buildings, houses, garages, etc. [Explanation of symbols]

[0025] 1. Shutter device 2 guide rails 3. Shutter Curtain 4 Winding body 6 Shutter Case 6a Upper case faceplate 6aa Tip edge 6b Lower case faceplate 6ba Tip edge 6c Bis 7 Bracket 8 Magusa Frame Material 9 Horizontal frame material 9a Back side vertical piece 10 First sheet material supplier 10a First sheet material 10b Support shaft 10c Rotating Roller 10d Coil Shot Machine 10e Anti-rotation device 10ea Tip 11 Second sheet material supply device 11a Second sheet material 12 Mounting material 12a Leg piece 12b Straddle part 12c Bis 13 Horizontal frame material 13a Back side vertical piece 13b Front vertical piece 13c Opening window 14 Mounting material 14a Leg piece 14b Straddle part 15 Anti-rotation device 15a Tip E Opening H Ceiling M Magusa Club S Storage space W Sheet material supply means

Claims

1. The shutter curtain is provided with guide rails on the left and right sides of an opening such as an entrance or exit of a building, a shutter curtain that is guided up and down by the guide rails to open and close the opening, and a winding body that is arranged in a storage space above the opening and around which the shutter curtain is wound in a spiral shape. In a shutter device for a building, a sheet material supply means is provided in a storage space of a winding body, which supplies a sheet material to be sandwiched between adjacent curtain surfaces of the shutter curtain in conjunction with the shutter curtain being wound onto the winding body, A shutter device for a building, characterized in that the sheet material supply means supplies a plurality of sheet materials, and at least two of the supplied sheet materials are supplied in a stacked state between the curtain surfaces.

2. A shutter device for a building as described in claim 1, characterized in that the sheet material supply means are first and second sheet material supply devices that respectively supply sheet material, and the first and second sheet material supply devices are arranged at the same position in the left-right direction in the storage space but at different positions in the up-down and / or down-front directions.

3. The storage space for the winding body is provided with left and right brackets on which the winding body is supported, a horizontal frame member supported between the left and right brackets, and a magusa frame member provided at the intake port of the shutter curtain, 3. A shutter device for a building according to claim 2, wherein the first and second sheet material supplying devices are attached to either the horizontal frame material or the magnesia frame material via attachment members.

4. The storage space for the winding body is provided with left and right brackets on which the winding body is supported, a horizontal frame member supported between the left and right brackets, and a magusa frame member provided at the intake port of the shutter curtain, 3. The shutter device for a building according to claim 2, wherein the first sheet material supplying device is attached to the magnesia frame member, and the second sheet material supplying device is attached to the horizontal frame member.

5. A shutter device for a building as described in claim 3 or 4, characterized in that the horizontal frame material is a reinforcing frame material having a vertical piece portion on the back side, and when the sheet material supply device is attached to the horizontal frame material, the sheet material supply device is attached to the vertical piece portion on the back side of the horizontal frame material.

6. The storage space for the winding body is covered with a shutter case, and the shutter case is fastened to the horizontal frame member in such a manner that the edge portions of the upper and lower case face plates of the shutter case overlap each other front to back. A shutter device for a building as described in claim 5, characterized in that when the sheet material supply device is attached to the horizontal frame material, the sheet material supply device is fastened to the vertical piece on the back side of the horizontal frame material at a position that avoids the fastening positions of the upper and lower case panel panels.

7. The first and second sheet supply devices are each provided with a winding spring that is energized to wind up the sheet material that is unwound from the winding body side onto a rotating roller when the shutter curtain moves to close, A shutter device for a building as described in claim 3, characterized in that the first and second sheet material supply devices are provided with a single rotation prevention device spanning the first and second sheet material supply devices to prevent the rotating rollers from rotating due to the accumulated force of the winding spring mechanism before the first and second sheet material supply devices are used.

8. The storage space for the winding body is provided with left and right brackets on which the winding body is supported, a horizontal frame member supported between the left and right brackets, and a magusa frame member provided at the intake port of the shutter curtain, The horizontal frame member is a rectangular cylindrical reinforcing frame member having vertical pieces on the front and back sides, When at least one of the first and second sheet material supply devices is attached to the horizontal frame member, the sheet material supply device to be attached is attached to a vertical piece portion on the back side of the horizontal frame member, 3. A shutter device for a building according to claim 2, characterized in that an opening window portion is formed in the vertical piece portion on the front side of the vertical frame material for fastening a sheet material supply device to the vertical piece portion on the back side.

9. 9. A shutter device for a building according to claim 8, wherein the storage space for the rolled-up body is covered with a shutter case, and a case face plate is fastened to the front vertical piece of the horizontal frame member.

Images