JP2020007740A - Connecting device for exterior louver - Google Patents

Abstract

To provide a connecting device which can easily connect end parts of a louver for exterior, does not require machining on the side of the louver, and has high strength and excellent durability without obstructing the appearance of the connecting part.SOLUTION: Louvers 1A,1B in which a deep wide groove part 11 opened rearward is continuously provided on the rear surface side of a hollow part 10 are connected by a connection material 2 having a short cylindrical body 21 and a seat plate 22. The short cylindrical body 21 of the connection material 2 and the seat plate 22 through which a pair of bolts 24 are inserted from the front side are connected to each other by a stopper screw 23 at a small interval d; the short cylindrical body 21 and the seat plate 22 are pressed and fitted into the hollow part 10 and the deep wide groove part 11 of one louver 1A to be connected to each other; the short cylindrical body 21 and the seat plate 22 of a connecting member 2 projecting from an end part of the louver 1A are pressed and fitted into the hollow part 10 and the deep wide groove part 11 of the other louver 1B; both louvers 1A, 1B are connected and fixed by screwing and fastening nuts 25 to both bolts 24.SELECTED DRAWING: Figure 5

Description

  The present invention relates to an external louver connection device suitable as a decorative lattice installed on an outer wall of a building such as a building or an apartment or an outdoor staircase.

  Exterior louvers are used for various purposes such as decoration of building wall surfaces, blindfolding of openings such as windows, lighting or shading, ventilation, etc., but in recent years, they cover almost the entire outer wall or a wide area as a decorative grid of a building. It is often installed as follows. However, in this type of conventional decorative grid, for example, as illustrated in FIG. 1 of Patent Document 1 and FIG. 4 of Patent Document 2, louvers of the same length are arranged in parallel, so On the other hand, if necessary, the middle part may be attached to the upper and lower parts of each louver via an appropriate mounting bracket, but the appearance is uniform and the design is poor.

JP 2008-8005 A (FIG. 1) JP 2016-169506 A (FIG. 4)

  As a preferable means for improving the designability of the decorative lattice described above, for example, as shown in FIG. 8, vertical louvers 1 arranged in parallel to substantially the entire wall surface of a building B are discontinuous at appropriate portions and are parallel to each other. A method of drawing an arbitrary linear pattern on the entire wall surface can be considered by setting the cuts G of the louver 1 to be connected linearly in appearance on the lattice plane. However, in such a method, since the length of each louver is changed, when a louver raw material having a fixed length is used, it can be cut and applied to a short portion, but a plurality of louvers are joined at a long portion. There is a need for a connecting means that can be easily added and that can form a connecting portion with high strength.

  In view of the above-described circumstances, the present invention can easily and efficiently connect the ends of the louvers to each other, and does not require any processing on the louver side. It is an object of the present invention to provide an exterior louver connection device which is excellent.

  If the means for achieving the above object is indicated by reference numerals in the drawings, the connecting device of the exterior louver according to the first aspect of the present invention connects the ends of the louvers 1A and 1B made of a hollow material to each other. The louvers 1A and 1B are provided with a deep groove 11 that opens rearward on the rear surface side of the hollow portion 10, and the connecting member 2 is connected to the hollow portion 10 of the louvers 11A and 1B. A short tubular body 21 that can be fitted and inserted, an elongated seat plate 22 that can be slidably inserted into the wide groove 11 of the louvers 11A and 1B and that cannot be detached rearward, A stopper screw 23 for connecting the intermediate portions to each other, a pair of bolts 24 that can be inserted into bolt insertion holes 22c provided on both longitudinal sides of the seat plate 22, and a nut 25 that is screwed to both bolts 24, The short cylinder 21 of the connecting member 2 In a state where the bolts 24 are inserted from the front side into the through holes 22c and the seat plate 22 is fastened by stopper screws 23 with a small gap d, the end of one louver 1A to be connected is connected to the end of one louver 1A. The short cylindrical body 21 and the seat plate 22 are respectively fitted into the hollow portion 10 and the wide groove portion 11, and the short cylindrical body 21 and the seat plate 22 of the connecting member 2 protruding from the louver end are to be connected. The louvers 1A and 1B are inserted into the hollow portion 10 and the wide groove portion 11 of the louver 1B, and the nuts 25 are screwed and fastened to both bolts 24, so that both the louvers 1A and 1B are open side edges 11a of the wide groove portion 11 and the seat plate 22. To be connected and fixed by pressure contact with the above.

  According to a second aspect of the present invention, in the connecting device for an exterior louver according to the first aspect, the one louver 1A and the other louver 1B are connected via the connecting member 2 with their ends separated from each other. It has a configuration.

  The third aspect of the present invention is the connecting device for an exterior louver according to the first or second aspect, further comprising a longitudinally continuous screw hole ridge 12 on both front and rear sides in the hollow portion 10 of the louvers 1A and 1B, The short cylindrical body 21 and the seat plate 22 are made of a metal material. The short cylindrical body 21 has concave portions 21a on both front and rear outer surfaces of the short cylindrical body 21 in which the boss holes 12 are accommodated. The portion 23a has a groove 22a that cannot be rotated.

  According to a fourth aspect of the present invention, in the exterior louver connection device according to any one of the first to third aspects, the louvers 1A and 1B are vertical, and the hollow portion 10 has a rectangular cross section that is long in the front-rear direction. I have.

  Next, effects of the present invention will be described with reference numerals in the drawings. In the connecting device for an exterior louver according to the first aspect of the present invention, the short cylindrical body 21 of the connecting member 2 and the seat plate 22 through which the pair of bolts 24 are inserted are connected with the stopper screw 23 with a small interval d. The short cylindrical body 21 and the seat plate 22 are inserted into the hollow portion 10 and the wide groove portion 11 of the louver 1A to be connected. At this time, the bottom wall 11b of the deep groove portion 11 of the louver 1A fits between the short cylinder 21 of the connecting member 2 and the seat plate 22, but a stopper connecting the intermediate portion between the short cylinder 21 and the seat plate 22 is provided. Since the screw 23 abuts on the end face of the bottom wall 11b, further insertion of the short cylinder 21 and the seat plate 22 becomes impossible. Next, the short tube 21 and the seat plate 22 of the connecting member 2 projecting from the end of the louver are inserted into the hollow portion 10 and the wide groove 11 of the other louver 1B to which the connecting plate 2 is to be connected. By screwing and tightening, both louvers 1A, 1B are connected and fixed by press contact between the opening edges 11a, 11a on both sides of the deep groove 11 and the seat plate 22.

  Therefore, according to this connecting device, the two louvers 1A and 1B connected to each other can receive the external force because the short cylindrical body 21 of the connecting member 2 is properly fitted over the hollow portions 10 and 10 of both. There is no fear of bending at the portion, and only by screwing and tightening the nut 25 to the bolt 24 pre-assembled to the seat plate 22 of the connecting member 2, the opening edges 11 a, 11 a on both sides of the wide groove 11 are connected to the seat plate 22. The connection between the louvers 1A and 1B does not cause a deterioration in the external appearance because the connection between the louvers 1A and 1B results in a firm connection without being rattled between the nuts 25. On the other hand, in the connecting operation, when the short cylindrical body 21 and the seat plate 22 of the connecting member 2 are inserted into the hollow portion 10 and the deep groove portion 11 of the one louver 1A, the stopper stops at the contact position of the stopper screw 23. However, the entire work does not enter the louver 1A and becomes inoperable, so that high workability can be obtained. Further, it is not necessary to provide a screw hole or a bolt hole on the louver side, and the hollow mold material can be used as it is without any post-processing, so that high working efficiency can be obtained.

  According to the invention of claim 2, one louver 1A and the other louver 1B are connected via the connecting member 2 with their mutual ends separated from each other, and the connecting portion is fixed by frictional force. Therefore, the expansion and contraction due to the temperature change of the louver can be absorbed in the range where the end portions are separated from each other, thereby preventing bending and tearing due to the expansion and contraction.

  According to the third aspect of the present invention, when the louvers 1A and 1B have the screw hole ridges 12 on the front and rear sides in the hollow portion 10, the short cylindrical body 21 of the connecting member 2 is formed in the concave portions 21a on both front and rear outer surfaces. The ridges 12 can be inserted into the hollow portion 10 without hindrance. Further, the seat plate 22 of the connecting member 2 can be inserted into the wide groove portion 11 of the louvers 1A and 1B without hindrance by fitting the head 23a of the bolt 23 in the groove 22a on the front side so as not to rotate. Since the bolt 23 does not rotate during operation, the nut 25 can be easily screwed and tightened.

  According to the invention of claim 4, in the case of a vertical louver, the short tubular body 21 and the seat plate 22 of the connecting member 2 are inserted into the hollow portion 10 and the wide groove portion 11 of the lower louver 1A from above. At this time, it is possible to prevent the entire body from dropping into the louver 1A by its own weight by the stopper screw 23, and to prevent the short cylinder 21 and the seat plate 22 from projecting from the upper end of the louver 1A at the insertion stop position by the stopper screw 23. Can be set appropriately.

FIG. 3 is an exploded perspective view of a connecting member used for the external louver connecting device according to the embodiment of the present invention. It is a partially broken side view of the attachment state of the connecting member. It is a cross-sectional view of a louver to be connected by the connecting device. 5A and 5B show a connecting operation by the connecting device, in which FIG. 7A is a longitudinal sectional side view before inserting a connecting member into a lower louver, and FIG. FIG. 4A shows a connection operation by the connection device, in which FIG. 4A is a longitudinal side view before insertion of an upper louver into a connection member after attachment, and FIG. 4B is a side view after insertion. It is arrow sectional drawing of the XX line of FIG.5 (b). FIG. 4A shows a state in which the louver is attached to a building frame side, where FIG. 4A is a longitudinal side view, and FIG. It is a front view showing the example of composition of the makeup lattice of the louver provided in the building wall surface.

  Hereinafter, a connecting device for an exterior louver according to an embodiment of the present invention will be specifically described with reference to the drawings. The connecting device according to the present embodiment connects the louvers 1A and 1B having the same cross-sectional shape shown in FIG. 3 with the connecting member 2 shown in FIGS. 1 and 2.

  As shown in FIGS. 1 and 2, the connecting member 2 is composed of a short rectangular cylinder 21, an elongated seat plate 22, one stopper screw 23, a pair of bolts 24 and a nut 25 and a washer 26. It is configured. The short cylinder 21 and the seat plate 22 are made of an extruded material of aluminum or an alloy thereof, and the seat plate 22 is slightly shorter than the short cylinder 21.

  The short cylindrical body 21 has a concave portion 21a continuous in the longitudinal direction on each of the narrow front and rear surfaces, and has a screw hole 21b at a longitudinally intermediate portion of the concave portion 21a on the rear surface side. Further, the seat plate 22 has a groove portion 22a that is continuous in the longitudinal direction on the front surface side, and is integrally formed with an engaging ridge 22b that bends rearward over the entire length on both the left and right sides, and a pair of upper and lower portion bolt insertion holes 22c. And a screw insertion hole 22d at an intermediate portion in the longitudinal direction are provided in the front-rear direction so as to face the groove 22a. The groove 22a of the seat plate 22 is set to have a width and a depth in which the head 24a of the bolt 24 fits in a non-rotatable manner.

  The louvers 1A and 1B are formed of an extruded member made of aluminum or an alloy thereof, and as shown in FIG. Are connected. In addition, screw holes ridges 12 are provided on both front and rear sides in the hollow portion 10, and both open edges 11 a, 11 a of the deep groove 11 are bent inwardly into a hook shape.

  The short cylindrical body 21 of the connecting member 2 is set to have a cross-sectional size and a cross-sectional shape that can be properly inserted into the hollow portions 10 of the louvers 1A and 1B. At the time of insertion, the short louvers 1A and 1B side The screw hole ridge 12 is to be accommodated. The seat plate 22 of the connecting member 2 is also set to have a cross-sectional size and a cross-sectional shape that can be appropriately inserted into the wide groove portion 11 of the louvers 1A, 1B. It is designed to engage with each opening edge 11a of the wide groove 11 on the 1A, 1B side from inside.

  At the time of using the connecting member 2, as shown in FIG. 2, a pair of bolts 24 are mounted on the seat plate 22 from the front side so that the bolt heads 24a fit into the groove portions 22a, and the screw insertion holes 22d of the seat plate 22 are provided. By inserting a stopper screw 23 inserted from the rear side into the screw hole 21b of the short cylinder body 21, the short cylinder body 21 and the seat plate 22 are previously connected to each other so that a small interval d is left between them. And keep it.

  When the louvers 1A and 1B are connected as a vertical louver, first, as shown in FIG. 4A, the short side of the connecting member 2 is inserted into the hollow portion 10 and the deep groove portion 11 of the lower louver 1A from above. The cylindrical body 21 and the seat plate 22 are fitted. At this time, the bottom wall 11b of the deep groove 11 of the louver 1A enters the small space d between the short cylinder 21 and the seat plate 22, but as shown in FIG. Since the upper end contacts the stopper screw 23, the short cylinder 21 and the seat plate 22 cannot be further inserted. Next, as shown in FIG. 5A, the upper louver 1B is externally fitted to the short cylindrical body 21 and the seat plate 22 of the connecting member 2 whose substantially upper half protrudes from the lower louver 1A. Then, the short cylinder 21 and the seat plate 22 are fitted into the hollow portion 10 and the wide groove portion 11. In this case as well, the bottom wall 11b of the deep groove 11 of the upper louver 1B enters the small gap d between the short cylinder 21 and the seat plate 22, but the upper louver 1B is not fully inserted and is not shown. The nut 25 is screwed through the washer 26 to each of the bolts 24 protruding from the seat plate 22 in a state in which the ends of the louvers 1A and 1B are separated from each other at an appropriate interval s (generally about 10 to 30 mm). The connection of both louvers 1A and 1B is completed by tightening.

  As shown in FIG. 6, the two louvers 1 </ b> A and 1 </ b> B thus connected are in a state where the opening edges 11 a and 11 a on both sides of the wide groove 11 and the seat plate 22 are sandwiched between the bolt 24 and the nut 25 and pressed against each other. However, since the short cylindrical body 21 of the connecting member 2 is properly fitted and inserted over both hollow portions 10 and 10, there is no fear of bending at the connecting portion even when an external force is applied, and a strong connection without backlash is provided. State. Further, since the connecting portion is on the rear side of the louvers 1A and 1B, the appearance is not deteriorated.

  On the other hand, in the connecting operation, when the short cylindrical body 21 and the seat plate 22 of the connecting member 2 are inserted into the hollow portion 10 and the deep groove portion 11 of the lower louver 1A from above, the stopper screw 23 as a whole is used. It is possible to prevent the louver 1A from falling into the louver 1A due to its own weight, thereby preventing the operation of the louver 1A. . Further, it is not necessary to provide a screw hole or a bolt hole on the louvers 1A, 1B side, and the two louvers 1A, 1B can be connected only by screwing and tightening the nut 25 to the bolt 24 previously assembled to the seat plate 22 of the connecting member 2. High working efficiency can be obtained because it can be connected and fixed. Furthermore, in a configuration in which the two louvers 1A and 1B are connected with their ends separated from each other as in the embodiment, when the two louvers 1A and 1B expand and contract due to a change in temperature, the connecting portion has a frictional force. Therefore, there is an advantage that a change in length due to the expansion and contraction is absorbed in a range of the separated interval s, and bending and tearing due to the expansion and contraction are prevented.

  In the embodiment, the configuration in which the upper louver 1B is connected to the lower louver 1A as a vertical louver is illustrated, but the connecting device of the present invention can be applied to the connection of a horizontal louver or an oblique louver. In these horizontal louvers and oblique louvers, when the short cylindrical body 21 and the seat plate 22 of the connecting member 2 are inserted into the hollow portion and the wide groove portion of one of the louvers, they stop at the contact position of the stopper screw 23. As a result, the entire body does not enter the louver 1A to be inoperable, and the positioning action of the stopper screw 23 can sufficiently secure the insertion length of the connecting member 2 with respect to the other louver, thereby obtaining high workability. .

  The mounting structure of the louver to the building frame side is not particularly limited, but as illustrated in FIGS. 7A and 7B, a seat plate metal fitting having a similar cross-sectional shape to the seat plate 22 of the connecting tool 2 and having a short length. If the louver 3 is used, the louver can be attached to the body by a simple operation. The seat plate 3 is inserted into the wide groove 11 of the louver 1 in a state where one bolt 31 is mounted so that the bolt head 31a is not rotatable in the groove 3a. Then, a bolt 31 is inserted into a bolt insertion hole 4a provided in the mounting bracket 4 with respect to the mounting bracket 4 having an L-shaped vertical section fixed to the RC skeletons 5A and 5B in the upper and lower parts of the building and the body edge 6 in the middle part. The louver 1 can be easily mounted simply by screwing and tightening the nut 32 to the bolt 31 via the washer 33 from behind. The mounting bracket 4 is made of an oblong angle material, and is mounted on the RC frame 5A, 5B side by an anchor bolt 7a and a nut 7b embedded through an adhesive anchor 8, and on the body edge 6 side by a bolt 9a and a nut 9b. Each is fixed at a plurality of locations. In addition, the louver 1 is attached to the building frame side at three or more locations including the upper and lower portions and the intermediate portion in the case of a long one by the above-described connection, but in the case of a short one, the upper and lower two locations are further cut and cut. In the case of a shorter one, the number of necessary attachment parts and the number of the attachment parts vary depending on the length.

  The connecting device of the present invention is similarly applicable to exterior louvers having various cross-sectional shapes other than those exemplified as the embodiment, and corresponds to the size and cross-sectional shape of the hollow portion 10 and the wide groove portion 11. The size and cross-sectional shape of the short cylinder 21 and the seat plate 22 of the connecting member 2 may be appropriately set. For example, in the above-described embodiment, the recesses 21a are formed on the front and rear surfaces of the short cylindrical body 21 corresponding to the boss holes 12 in the hollow portion 10 of the louvers 1A and 1B, but the louvers without the boss holes 12 are provided. Of course it is applicable. In this case, the short cylindrical body 21 having the concave portions 21a formed on the front and rear surfaces may be used as it is. However, usually, the front and rear surfaces are flat, and the stopper screw 23 is screwed into the rear surface. The one provided with the screw hole 21a is used. Further, the exterior louver to be applied is not limited to a decorative lattice in which the cuts G of the parallel louvers 1 are externally connected on the lattice surface to form a linear pattern as illustrated in FIG. What is necessary is just to add the louver 1 entirely or partially.

DESCRIPTION OF SYMBOLS 1A, 1B Louver 10 Hollow part 11 Wide groove part 12 Deep groove part 12 Screw hole ridge 2 Connecting material 21 Short cylindrical body 21a Depressed part 22 Seat plate 22a Groove part 22c Bolt insertion hole 23 Stopper screw 24 Bolt 24a Bolt head 25 Nut d Small interval s interval (Separation of mutual ends)

Claims (4)

A device for connecting the ends of the louver made of a hollow mold member via a connecting material,
The louver is provided with a deep groove portion that opens rearward on the rear surface side of the hollow portion,
The connecting member includes a short tubular body that can be properly fitted and inserted into the hollow portion of the louver, an elongated seat plate that can be slidably inserted into the deep groove portion of the louver and that cannot be detached rearward, A stopper screw for connecting the intermediate portions of the plate to each other, a pair of bolts that can be inserted into bolt insertion holes provided on both longitudinal sides of the seat plate, and a nut screwed to both bolts,
In a state where the short cylindrical body of the connection material and the seat plate in which the bolts are inserted from the front side into the both bolt insertion holes are fastened with the stopper screws with a small space therebetween, one of the two to be connected is connected. The short tubular body and the seat plate are inserted into the hollow portion and the wide groove portion of the louver, respectively, and the short tubular body and the seat plate of the connecting member projecting from the louver end are to be connected. The louvers are inserted into the hollow portion and the wide groove portion of the louver, and the nuts are screwed and tightened to the two bolts, so that both the louvers are connected and fixed by press contact between the opening edges on both sides of the wide groove portion and the seat plate. An external louver connection device configured.   2. The exterior louver connection device according to claim 1, wherein one of the louvers and the other louver are connected via the connection member with their mutual ends separated from each other. 3. It has a screw hole ridge that is continuous in the longitudinal direction on both front and rear sides in the hollow part of the louver,
The short tubular body and the seat plate of the connecting member are made of a metal material, and the short tubular body has concave portions on both front and rear outer surfaces in which the screw hole ridges are accommodated, and the head of the bolt rotates on the front side of the seat plate. The connecting device for an exterior louver according to claim 1 or 2, further comprising a groove that cannot be accommodated.   The exterior louver connection device according to any one of claims 1 to 3, wherein the louver is a vertical type, and the hollow portion has a rectangular cross section that is long in front and rear.

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