JP2023081131A - Louver material, construction method thereof and louver structure - Google Patents

Abstract

To easily manufacture louver materials L to be installed in the ceiling of a building at a low cost, even if height and width of the louver materials L vary, and facilitate installation and positioning of the louver materials L.SOLUTION: A louver material L comprises a core material 1 having a fixing portion 9 at a base end that is detachably fixed to a stringer 31 of a ceiling portion of a building, and a decorative material 20, U-shaped in cross section, which is integrally attached to the core material 1 by an adhesive A while being covered with the core material 1 from the tip side. The core material 1 includes a pair of side wall portions 2 arranged facing each other, while the inner surface of the decorative material 20 has an adhesive portion 23 that is bonded to the outer surface of the side wall portion 2 of the core material 1 by the adhesive A, and a recess 24 for collecting the adhesive A is formed in the side wall portion 2. In addition, the core material 1 is provided with an overhang 12 that is in contact with an opening side end surface of the decorative material 20 to position the decorative material 20 against the core material 1.SELECTED DRAWING: Figure 6

Description

TECHNICAL FIELD The present invention relates to a louver material, its construction method, and a louver structure.

In general, this type of louver material is used as a louvered ceiling or louvered wall by being applied to the ceiling or wall of a building. For example, as shown in Patent Document 1, a plurality of louver materials as ceiling louvers are arranged perpendicular to the stringer suspended from the ceiling, and each louver material is attached to the stringer at the upper end. It is known that the ceiling part has a watermark structure by fixing with bolts.

Further, the applicant of the present application has previously proposed a louver material (decorative rib material) disclosed in Patent Document 2. This louver material is a combination of a core member with a U-shaped cross section such as plywood and a decorative member of the same shape, and the core member is screwed to the base material of the ceiling or wall at the bottom. A decorative member covers the core member from the opening side, and the decorative member is adhered to the outer surface of the side wall portion of the core member at the inner surface of the side portion, and the side of the decorative member. It is fixed to the side wall portion of the core member by a nail penetrating through the portion.

Japanese Patent No. 5920715 Japanese Patent Application Laid-Open No. 2020-159158

By the way, in the above Patent Document 2, after screwing the core member to the base material, the decorative member is put on the core member and nailed to form the louver material. In the case of the louver structure, it is necessary to screw the core member of the louver material to the base material (roofing) from below, and the construction by screwing is troublesome.

Moreover, since it is a screw-fastened structure, if the position of the louver material is changed even slightly, it cannot be removed or moved without removing the screw. If the screw holes overlap, there will be restrictions on changing the position, making it difficult to make fine adjustments after construction. In addition, if there are many traces of screw holes, the strength of the base material is weakened, so the position cannot be changed many times.

In addition, since the decorative member is applied after fixing the core member to the base material, the work becomes troublesome. These problems left room for improvement.

On the other hand, the louver material disclosed in Patent Document 1 is a finished product by itself, and is fixed to a stringer as a base material by bolts. It's easy.

On the other hand, however, the louver material of Patent Document 1 is composed of a single member itself. Different types of louver materials are required. In particular, when the louver material is formed from an extruded material, it is necessary to prepare an extrusion molding die for each of a plurality of types, which inevitably increases manufacturing expenses and costs.

The present invention has been made in view of the above problems, and its object is to easily manufacture louver materials with different heights and widths at low cost by devising the structure of the louver material. To facilitate construction and position adjustment of a louver material.

In order to achieve the above object, in the present invention, a core material that is detachably fixed to a base material is used, and a decorative material separate from the core material is fixed and integrated to the core material to form a louver material. made it

Specifically, the first invention is a louver material that is detachably installed on a base material to form a louver structure on the ceiling or wall of a building, and the louver material is attached to the base material. A core material having a fixing portion detachably fixed on the base end side, and a decorative material having a U-shaped cross section integrally fixed to the core material while covering the core material from the distal end side. there is The core member has a pair of side walls facing each other, and the inner surface of the decorative member and the outer surface of the side wall portions of the core member are fixed.

In the first aspect of the invention, the louver material is formed by integrating the core material and the decorative material that is fixed while covering the core material. It is detachably fixed to the base material. Therefore, when constructing the louver material, it is only necessary to fix the core material of them to the base material at the fixing portion, eliminating the need for conventional screw fastening work, thereby facilitating the construction of the louver material. Moreover, by fixing and integrating the core material and the decorative material in advance, it is unnecessary to fix the core material to the base material and fix the decorative material to the base material at the construction site. Construction work becomes easier.

In addition, since the louver material is detachably fixed to the base material at the fixing part of the core material, when changing the position of the louver material, it is only necessary to loosen the fixation at the fixing part and change the position. , its fine adjustment can be easily made without restrictions. Moreover, unlike the case of screwing, screw holes do not remain in the base material, and the strength of the base material is not lowered.

Since the louver material is formed of two members, the core material and the decorative material, the core material can be given the role of fixing to the base material, and the decorative material can be given the role of decoration. . Therefore, if you want to change the height and width of the louver material to create variations in the louver structure, it is enough to keep the shape of the core material constant and use only the decorative materials with different heights and widths. Unlike the case of using an extruded material, it is not necessary to prepare a plurality of types of molds, and the manufacturing cost of the louver material can be reduced.

A second invention is the louver material according to the first invention, characterized in that the core material is provided with a positioning portion that abuts against the opening-side end face of the decorative material and positions the decorative material with respect to the core material. .

In the second aspect of the present invention, when the core material is covered with the decorative material and fixed and integrated, the decorative material is brought into contact with the core material by bringing the opening side end surface of the core material in the covering state into contact with the positioning portion of the core material. positioned against. As a result, even if the louver material consists of two members, the core material and the decorative material, the decorative material can be easily positioned, and the workability during manufacturing and construction is improved.

A third invention is characterized in that, in the louver material of the first or second invention, the inner surface of the decorative material is adhered and fixed to the outer surface of the side wall portion of the core material with an adhesive.

In the third aspect of the invention, since the decorative material covering the core material is fixed and integrated with the core material by means of an adhesive, the decorative material does not leave any traces of nailing, and the design of the louver material is enhanced. be able to.

A fourth aspect of the invention is the louver material according to the third aspect of the invention, characterized in that a concave portion for holding an adhesive is formed on the inner surface of the decorative material.

In the fourth aspect of the invention, a recess is formed in the inner surface of the decorative material, and the recess stores an adhesive for fixing the decorative material to the core material. By accumulating the adhesive in the concave portion in this way, a large amount of the adhesive is secured between the inner surface of the decorative material and the outer surface of the side wall portion of the core material, and the thickness of the adhesive increases, resulting in the anchor effect. can also be obtained and the adhesive strength can be increased.

A fifth invention is the louver material according to the third or fourth invention, wherein the adhesive is an elastic adhesive.

In the fifth invention, since the adhesive disposed between the inner surface of the decorative material and the outer surface of the side wall of the core material is an elastic adhesive, even if a difference in dimensional change occurs between the decorative material and the core material, However, it can be absorbed by the adhesive, and the adhesive state between the two can be maintained stably.

A sixth invention is the louver material according to any one of the first to fifth inventions, wherein the decorative material comprises an elongated plate-like body having a U-shaped cross section along a plurality of longitudinally extending bent portions. It is characterized by being folded.

In the sixth aspect of the invention, the decorative material is formed by bending the elongated plate-like body into a U-shaped cross section along a plurality of bending portions extending in the longitudinal direction thereof. Therefore, for example, when an adhesive is used, the adhesive is applied when the decorative material is in an unfolded plate-like body that is not folded into a U-shaped cross section, and the adhesive is applied while bending the plate-like body. By covering and fixing the core material, the decorative material and the core material can be integrated to form the louver material. In this way, the louver material can be manufactured easily.

A seventh invention is characterized in that, in the louver material according to any one of the first to sixth inventions, the decorative member is made of a noncombustible material. In this way, a noncombustible louver material can be easily obtained by using a noncombustible decorative material.

An eighth invention relates to a louver structure, and this louver structure is characterized in that the louver material of any one of the first to seventh inventions is applied to the base material of the ceiling or wall of a building. . This invention also provides the same effects as the first invention.

A ninth invention is a method for constructing a louver material according to any one of the first to seventh inventions, wherein the core material and the decorative material are integrated by covering and fixing the decorative material on the core material. and a step of fixing the core material to a base material by means of a fixing portion.

In the ninth aspect of the invention, the core material is covered with the decorative material and fixed, thereby forming a louver material in which the core material and the decorative material are integrated. On the other hand, in this louver material, the core material is fixed to the base material by its fixing portion. A louver structure is constructed by combining two processes. In this case, by fixing the decorative material to the core material in advance to prepare the louver material, it is only necessary to fix the louver material to the base material at the construction site, and workability during construction can be improved.

As described above, according to the present invention, the louver material is configured to include a core material detachably fixed to a base material and a decorative material covering the core material. It is integrally fixed between the outer surface of the side wall portion of the material and the inner surface of the decorative material. As a result, it is not necessary to screw the louver material to the base material, and the position can be easily adjusted. In addition, even louver materials with different heights and widths can be easily manufactured at low cost by changing only the decorative material, and cost reduction of the louver structure with excellent design can be achieved.

FIG. 1 is a cross-sectional view of a louver material according to an embodiment of the present invention. FIG. 2 is an enlarged cross-sectional view of a main part of the louver material. FIG. 3 is an exploded perspective view of the louver material. FIG. 4 is a plan view of the louver material. FIG. 5 is a side view of the louver material. FIG. 6 is a view corresponding to FIG. 1 in which fixing bolts and nuts are attached to the louver material. FIG. 7 is a cross-sectional view of the core material. FIG. 8 is a cross-sectional view of the decorative material. FIG. 9 is a cross-sectional view showing the state of application of the adhesive when the decorative material is unfolded. FIG. 10 is a plan view showing the louver ceiling as viewed from below. FIG. 11 is a front view of a louvered ceiling. FIG. 12 is a side view of a louvered ceiling. FIG. 13 is a front view of the stringer. FIG. 14 is a plan view of the stringer.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail based on the drawings. The following descriptions of the embodiments are merely exemplifications in nature, and are not intended to limit the invention, its applications, or its uses at all.

1 to 5 show a louver material L according to an embodiment of the invention. As shown in FIGS. 10 to 12, the louver material L is used to form a louver structure under stringers 31, 31, . . . Each stringer 31 is detachably constructed.

As shown in FIGS. 13 and 14, the stringer 31 is a long piece of metal, such as iron, having a substantially L-shaped cross section, in which the upper and lower horizontal portions 31a and 31b are connected at one end in the width direction by a vertical portion 31c. consists of As shown in FIGS. 11 and 12, suspension bolts 35, 35, . . . hang down from the ceiling of the space in the building. The stringer 31 is placed in the hanger 38 at its lengthwise end and intermediate portion and rests on its bottom, and the screw hole 33 (Fig. 13) is supported by screw bolts 40 screwed together so as not to come off. The stringer 31 is thus suspended from the ceiling.

In the lower horizontal portion 31b of the stringer 31, a plurality of U-shaped grooves are formed by notching a portion of the lower horizontal portion 31b from the other edge portion on the opposite side of the vertical portion 31c to near the vertical portion 31c. Grooves 32 , 32 , .

As shown in FIGS. 1 to 5, the louver material L includes a core material 1 detachably fixed to the stringer 31 (backing material), and attached to the core material 1 on the tip end side of the core material 1 (see FIG. 7). and a decorative material 20 having a U-shaped cross section integrally attached with an adhesive A while covering from the lower side), and as shown in FIG. It is slightly longer, and both ends of the decorative material 20 protrude from the core material 1. - 特許庁

The core material 1 and the decorative material 20 are preferably fixed with the adhesive A as described above, but a double-sided tape or the like can also be used. In addition, although traces can be seen on the surface of the decorative material 20, nails such as finish nails or screws can also be used.

The core material 1 is a long material made of metal, resin, or the like, and is made of extruded aluminum in this embodiment. As shown in FIG. 7, the core material 1 is in the shape of a rectangular tube having a rectangular cross section, and includes a pair of side wall portions 2, 2 arranged facing each other in the horizontal width direction. and a lower wall portion 4 connecting the distal end portions of the side wall portion 2 at the lower end of FIG. The vertical dimension in FIG. 7) is larger than the width (horizontal dimension in FIG. 7).

In the upper wall portion 3 located on the base end side of the core member 1, a slit-shaped bolt insertion groove 6 penetrating through the upper wall portion 3 is continuously formed in the center of the width direction of the core member 1 over the entire length direction. It is formed so that it may extend. A partition wall portion 7 is formed in the upper and lower intermediate portions of the core member 1 to divide the inside of the core member 1 into two upper and lower spaces. Then, as shown in FIG. 6, the head portion B1 of the fixing bolt B is inserted into the bolt accommodating portion 8 from the longitudinal end portion of the core member 1 and accommodated, and the shaft portion B2 of the fixing bolt B is inserted into the bolt insertion groove. 6 is projected upward from the core material 1, the projecting portion is inserted into the U-shaped groove 32 in the lower horizontal portion 31b of the stringer 31, and a nut N is screwed to the upper end portion of the U-shaped groove 32 inserted. By sandwiching the upper wall portion 3 of the core material 1 and the lower horizontal portion 31b of the stringer 31 between the head B1 of the bolt B and the nut N, the core material 1 of the louver material L is placed under the stringer 31. He is trying to fix to the horizontal part 31b. On the other hand, by loosening the nut N and allowing the shaft portion B2 of the bolt B to escape from the opening of the U-shaped groove 32, the core material 1 of the louver material L is removed from the lower horizontal portion 31b of the stringer 31. there is Therefore, in this embodiment, the bolt insertion groove 6 and the bolt accommodating portion 8 constitute the fixing portion 9 that is detachably fixed to the stringer 31, and the core member 1 has the fixing portion 9 on the base end side.

Incidentally, as shown in FIGS. 1 and 7, on the inner surfaces of the side walls 2, 2 in the bolt accommodating portion 8 of the core member 1, ridges 10, 10 protruding toward the bolt accommodating portion 8 are formed on the core member 1. The projections 10, 10 are formed along the length direction, and the distance between the projections 10, 10 is formed to be slightly larger than the minimum dimension of the head portion B1 of the fixing bolt B. A bolt B is prevented from rotating inside. 6, W is a washer interposed between the nut N and the upper wall portion 3 of the core member 1. As shown in FIG.

The upper wall portion 3 on the base end side (upper side in FIG. 7) of the core material 1 has an upper overhanging portion 12 as a positioning portion that slightly overhangs in the width direction from other portions so as to extend the upper wall portion 3. , 12 (protruding portion on the base end side), and on the lower wall portion 4 on the distal side (lower side in FIG. 7), similarly, a lower protruding portion slightly protruding in the width direction so as to extend the lower wall portion 4 is provided. Portions 13 and 13 (tip-side protruding portions) are integrally provided, and the protruding dimension of each upper protruding portion 12 is slightly larger than that of each lower protruding portion 13 .

In this way, by projecting the upper overhanging portions 12, 12 greatly, when fixing the louver material L to the stringer 31 (backing material), the core material 1 is spread over a wide area with the stringer 31 by the upper overhanging portions 12, 12. The louver material L is brought into close contact with the stringer 31 so as not to wobble.

On the other hand, as shown in FIG. 8, the decorative member 20 has a U-shaped cross-section that is open on one side (upper side), and includes a plate-like front portion 20a and both ends in the width direction of the front portion 20a. It has a pair of plate-like side portions 20b, 20b that extend in the same direction and parallel to the upper side by the same dimension, and are made of a noncombustible material such as a volcanic vitreous double plate or other inorganic material. there is As shown in FIG. 9, the decorative member 20 is formed with a plurality of notches extending in the longitudinal direction at the middle portion in the width direction of a long plate-like body. It is bent at right angles along the bent portion 21 (notch) to have a U-shaped cross section, and the applicant of the present application has already applied for a detailed structure (see Japanese Patent Application Laid-Open No. 2019-085719). .

The distance between the inner surfaces of both side portions 20b, 20b of the decorative material 20 (adhering portion 23, which will be described later) is larger than the distance between the outer surfaces of the side walls 2, 2 of the core member 1 by a constant small dimension. In addition, the distance from the inner surface of the front portion 20a, which is the inner bottom surface of the decorative member 20, to the base end surface of the side portion 20b (the end surface of the decorative member 20 on the opening side) is the vertical direction of the outer surface of each side wall portion 2 in FIG. is much larger than the width of The distance from the inner surface of the front part 20a of the decorative material 20 to the base end surface of the side part 20b relates to the height position of the louver material L from the stringer 31 at a certain height position, and the height of the core material 1 While the height position is constant like the stringer 31, the height position of the louver material L is changed by changing the distance. When the height position of the louver material L is increased, a decorative material 20 with a small distance is prepared, and when the height position of the louver material L is decreased, a decorative material 20 with a large distance is prepared. Therefore, the distance should be the same as or larger than the width of the outer surface of the side wall portion 21b of the core member 1 .

On the inner surfaces of both side portions 20b, 20b of the decorative member 20, adhesive portions 23 are formed which are bonded to the outer surfaces of the side wall portions 2 of the core member 1 with the adhesive A. As shown in FIG. The adhesive portion 23 is a range (region) sandwiched between the upper overhanging portion 12 and the lower overhanging portion 13 of the core material 1 when the decorative material 20 is put on the core material 1. Even if the adhesive A tries to move to other than the bonding portion 23, the upper and lower overhanging portions 12 and 13 of the core material 1 act as stoppers to prevent the movement. This allows the adhesive A to be held in the adhesive portion 23 .

As shown in FIG. 9, when the decorative material 20 is in a plate-like state in which the decorative material 20 is not folded into a U-shaped cross section, an adhesive A is applied to both of the adhesive portions 23, 23, and the adhesive is The decorative material 20 in the application state of A is closed from the unfolded state to have a U-shaped cross section, and the core material 1 is covered from the tip side from the opening side, and the end face of the opening side of the decorative material 20 is used as a positioning part of the core material 1. By moving a little until it abuts on the upper overhanging portion 12 of the core material 1, the adhesive A is spread in the surface direction between the bonding portion 23 and the outer surface of the side wall portion 2 of the core material 1 to a certain thickness (for example, 0.5 to 2 mm ) to form a layer of the adhesive A. That is, the upper overhanging portion 12 of the core member 1 serves as a positioning portion for positioning the decorative member 20 with respect to the core member 1 by contacting the end surface of the decorative member 20 on the opening side.

As the adhesive A, it is desirable to use an elastic adhesive such as a modified silicon-based adhesive. If the core material 1 is, for example, an aluminum extruded material, and the decorative material 20 is a noncombustible material such as a volcanic vitreous double layer plate or other inorganic material, the expansion coefficients of the two materials will differ. This is to absorb the difference in movement (difference in dimensional change) when relative movement may occur.

Furthermore, as shown in an enlarged view in FIG. 2, a single groove-shaped concave portion 24 extending along the entire length of the decorative material 20 is formed in the bonding portion 23 on the inner surface of each side portion 20b of the decorative material 20. A portion of the adhesive A is stored in this recess 24 . The groove-shaped concave portion 24 has a depth of about 1 mm and a width of about 5 mm, for example. A plurality of groove-like recesses 24 may be formed in parallel or intersecting. Further, the concave portion 24 may not be formed over the entire length of the decorative material 20, and may be formed intermittently. Further, the shape of the concave portion 24 is not limited to the shape of the groove, and the concave portion 24 may have a shape other than the shape of the groove. In short, any shape may be used as long as the adhesive A positioned at the bonding portion 23 is accumulated. The concave portion 24 accumulates excess adhesive A and exhibits an anchoring effect for the adhesive A. As shown in FIG.

Further, on the inner surface of each side portion 20b of the decorative material 20, a single groove 26 extending in the longitudinal direction of the decorative material 20 extends over the entire length of the decorative material 20 on the tip side of the adhesive portion 23. formed. The recessed groove portion 26 accommodates the lower projecting portion 13 of the core member 1 . The groove width of the recessed groove portion 26 is larger than the thickness of the lower projecting portion 13, and the lower projecting portion 13 is accommodated in the recessed groove portion 26 with a gap therebetween. In this structure as well, when relative movement occurs due to the difference in expansion coefficient between the core material 1 and the decorative material 20, the difference in movement (difference in dimensional change) is A gap between the portion 13 and the portion 13 allows absorption. At the same time, until the adhesive A is cured, the effect of fixing the decorative material 20 to the core material 1 so as not to be greatly displaced and fall, and furthermore, the adhesion state of the decorative material 20 to the core material 1 Even in the event that the adhesive A loses its adhesive effect due to deterioration or the like, the lower protruding portion 13 is caught in the recessed groove portion 26 as a protrusion to prevent the decorative material 20 from falling off, and the louver material L can be lengthened. It has the effect of stably holding over a period of time.

As shown in FIGS. 4 and 5, end caps 29, 29 are fitted to both ends of the louver material L in the longitudinal direction to close the end openings of the core material 1 and the decorative material 20 at the same time. is fixed.

Next, a method for constructing a ceiling having a louver structure using the louver material L configured as described above will be described. For example, as shown in FIGS. 10 to 12, a plurality of stringers 31, 31, . When constructing the louver material L, a plurality of louver materials L, L, . . .

As a desirable method, first, the decorative material 20 is fixed to the core material 1 with the adhesive A and integrated, thereby forming the louver material L in which the core material 1 and the decorative material 20 are integrated. After that, the louver material L is fixed to the stringer 31 by the fixing port B and the nut N at the fixing portion 9 (the bolt insertion groove 6 and the bolt housing portion 8) of the core member 1. As shown in FIG.

Specifically, as shown in FIG. 9, the decorative material 20 is formed into a plate-like body in an unfolded state without being bent into a U-shaped cross section. Adhesive A is applied to the portion corresponding to the portion 23 . FIG. 9 shows a state in which the adhesive A is applied to only one location on the inner surface of each side portion 20b of the decorative material 20, but it may be applied to a plurality of locations, and the application method is not limited. If it is applied to or near it, the anchor effect can be reliably exhibited.

After that, the plate-shaped body of the decorative material 20 coated with the adhesive A is folded at the bending portions 21, 21, . At this time, the lower protruding portion 13 of the core member 1 is accommodated in the concave groove portion 26 on the inner surface of the side portion 20b of the decorative member 20. As shown in FIG. The covered decorative material 20 is slightly moved relative to the core material 1, and the end surface of the decorative material 20 on the opening side is brought into contact with the upper projecting portion 12 as a positioning portion of the core material 1. As shown in FIG. Due to such relative movement, the adhesive A spreads in the plane direction between the adhesive portion 23 and the outer surface of the side wall portion 2 of the core member 1, and the adhesive A has a constant thickness (for example, 0.5 to 2 mm). A layer is formed. In this way, the decorative material 20 is adhered to the core material 1 and integrated, and the louver material L is formed.

At this time, since the upper overhanging portion 12 is formed on the core member 1, when positioning the decorative member 20 on the core member 1, the end surface of the decorative member 20 on the opening side is only brought into contact with the overhanging portion 12. , the upper protruding portion 12 serves as a positioning portion, and the decorative material 20 can be easily positioned with respect to the core member 1 by the positioning portion. That is, even if the louver material L is composed of two members, the core material 1 and the decorative material 20, the positioning of the decorative material 20 is facilitated, thereby improving the workability in manufacturing the louver material L. can be made

In addition, since the recessed portion 24 is formed in the bonding portion 23 of the decorative material 20, the recessed portion 24 functions as an adhesive reservoir, and the adhesive A is accumulated, so that the layer of the adhesive A is stably formed. be done.

The formation of the louver material L up to this point may be performed at the construction site, but is preferably performed at the manufacturing factory.

When the louver material L in which the decorative material 20 is integrated with the core material 1 is thus formed, for example, at the construction site, as shown in FIG. The heads B1 of the fixing bolts B, B, . . . The core member 1 is projected upward from the groove 6, and a nut N is screwed onto the projected shaft portion B2 via a washer W. At that time, the number of fixing bolts B, nuts N screwed thereto, and washers W is the number of stringers 31 to which each louver member L is attached. There are two cases where it is fixed over . As shown in FIG. 10, when each louver member L is fixed over four stringers 31, 31, . . . , four fixing bolts B, nuts N and washers W are used.

The portion between the washer W (nut N) and the upper wall portion 3 of the core member 1 in the shaft portion B2 of the fixing bolt B to which the nut N is screwed is the U-shaped portion of the lower horizontal portion 31b of each stringer 31. The opening side of the groove 32 is inserted into the groove 32, and then the nut N is screwed and fastened to hold the upper wall portion 3 of the core member 1 between the head portion B1 of the bolt B and the washer W (nut N) and the stringer. 31 and the lower horizontal portion 31b. As a result, the core material 1 of each louver material L is fixed to the lower part of the stringer 31 . The plurality of louver members L, L, . . . form a ceiling portion with a louver structure.

When changing the position of the louver material L with respect to the stringer 31 for adjustment or the like, loosen the nut N, shift the position of the bolt B on the louver material L, and after reaching the correct position, tighten the nut N and tighten the louver material L. is fixed to the stringer 31. The louver material L can be removed from the stringer 31 by letting the fixing bolt B escape from the opening of the U-shaped groove 32 .

Instead of screwing the nut N onto the bolt B in advance, the nut N may be screwed onto the shaft portion B2 via the washer W after the shaft portion B2 of the bolt B is inserted into the U-shaped groove 32 . This method can be adopted when a through hole is formed in the lower horizontal portion 31b of the stringer 31 instead of the U-shaped groove 32, but it is not essential in the case of the U-shaped groove 32.

Note that, as in the above method, the core material 1 is fixed to the stringer 31 without first forming the louver material L, and then the decorative material 20 is adhesively fixed to the core material 1 to form the louver material L. can also be adopted. However, it is necessary to apply the adhesive A to the decorative material 20 at the construction site and to adhere and fix the decorative material 20 to the core material 1, which is troublesome. On the other hand, in the method of forming the louver material L by bonding and fixing the decorative material 20 to the core material 1 in advance, the bonding process can be performed at the manufacturing factory of the louver material L, and the construction site can be reduced. This is advantageous because it simplifies the work.

Therefore, in this embodiment, the louver material L is formed by integrating the core material 1 and the decorative material 20 that is adhered and fixed while covering the core material 1. It is detachably fixed to the stringer 31 (backing material) of the ceiling portion by a fixing bolt B having a head portion B1 housed in the portion 8 and a nut N screwed onto the shaft portion B2 of the bolt B. Therefore, when constructing the louver material L, only the core material 1 of the louver material L in which the decorative material 20 is fixed and integrated with the core material 1 is fixed to the stringer 31 by the fixing bolt B and the nut N. can be constructed, the conventional work of screwing is not necessary, and the construction of the louver material L can be easily performed. Moreover, as described above, if the core material 1 and the decorative material 20 are fixed and integrated in advance to form the louver material L, the core material 1 is fixed to the stringer 31 at the construction site, and the decorative material 20 is attached to the stringer 31 at the construction site. This eliminates the need for twice the trouble of fixing the , and simplifies the construction work.

Further, the core member 1 is detachably fastened and fixed to the U-shaped groove 32 of the stringer 31 by a fixing bolt B having a head portion B1 accommodated in the core member 1 and a nut N screwed on the bolt B. Therefore, when changing the position along the length of the louver material L, loosen the bolt B and nut N to change the position, and after adjusting the position, tighten the nut N to the bolt B again. and the fine adjustment can be easily performed without restrictions. In addition, there is no possibility that a screw hole remains in the stringer 31 unlike screw fastening, and the strength of the stringer 31 is not lowered.

Furthermore, since the decorative material 20 covering the core material 1 of the louver material L is fixed and integrated with the core material 1 with the adhesive A, the decorative material 20 can be nailed like a structure fixed by nailing. No marks are left, and the design of the louver material L can be enhanced.

Since the louver material L is formed of two members, the core material 1 and the decorative material 20, the core material 1 is given the role of fixing to the stringer 31 (backing material), and the decorative material 20 can have a cosmetic role. Therefore, when it is intended to change the height and width of the louver material L to provide variations in the louver structure, the shape of the core material 1 is kept constant, and only the decorative material 20 is made into various types with different heights and widths. It will be done. That is, it is not necessary to prepare a plurality of types of molds unlike the case of using a louver material made of an extruded material, and the manufacturing cost of the louver material L can be reduced.

In the louver material L, a concave portion 24 for storing the adhesive A is formed in the bonding portion 23 of the inner surface of each side portion 20b of the decorative material 20. Adhesive A for fixing to is stored. Since the adhesive A is stored in the concave portion 24 in this way, a large amount of the adhesive A is secured between the adhesive portion 23 on the inner surface of the decorative material 20 and the outer surface of the side wall portion 2 of the core member 1. The thickness of the layer becomes thicker, and the adhesive strength can be increased due to the anchor effect.

Moreover, if the adhesive A disposed between the adhesive portion 23 on the inner surface of the side portion 20b of the decorative material 20 and the outer surface of the side wall portion 2 of the core material 1 is an elastic adhesive, the decorative material 20 and the core material Even if there is a difference in dimensional change between the two due to the difference in material from that of 1, the difference is absorbed by the adhesive A, and the state of adhesion between the two can be stably maintained.

Further, the decorative material 20 of the louver material L is formed by bending an elongated plate-like body into a U-shaped cross section along a plurality of bending portions 21, 21, . . . Adhesive A is applied when 20 is in a plate-like body in a developed state that is not bent into a U-shaped cross section, and core material 1 is folded while bending the plate-like body to which adhesive A is applied as described above. By covering and fixing the decorative material 20 and the core material 1, the louver material L can be formed by integrating the decorative material 20 and the core material 1. As a result, the louver material L can be manufactured easily.

Since the decorative material 20 of the louver material L is a noncombustible material, the louver material L becomes a noncombustible louver material by the decorative material 20 of the noncombustible material, and a louver ceiling having a noncombustible structure made of the noncombustible louver material can be easily obtained. can.

(Other embodiments)
In the above-described embodiment, the decorative material 20 in the louver material L is made of a noncombustible material such as a volcanic vitreous double layer plate. It may be made of a material such as wood material such as MDF.

Further, in the above embodiment, a plurality of louver materials L, L, . . . are fixed to the stringers 31, 31, . However, the louver material L can also be used for a wall with a louver structure (louver wall) constructed on the wall of a building. In that case, if a plurality of louver materials L, L, . . . Well, the mounting structure is the same as the above embodiment, and the construction method is also the same. This results in a louvered wall in which the louvered material L is applied to the walls of the building.

The present invention makes it possible to easily adjust the position of the louver material without screwing the louver material, improve the workability of the louver material, and easily at low cost even if the louver material is different in height and width. It can be manufactured, is extremely useful, and has high industrial applicability.

L Louver Material 1 Core Material 2 Side Wall Part 3 Upper Wall Part 6 Bolt Insertion Groove 8 Bolt Receiving Part 9 Fixed Part 10 Ridge 12 Overhanging Part (Positioning Part)
13 lower projecting portion 20 decorative material 20b side portion 21 bent portion 23 bonding portion 24 concave portion 26 concave groove portion A adhesive B fixing bolt B1 head B2 shaft portion N nut 31 stringer (backing material)
32 U-shaped groove

TECHNICAL FIELD The present invention relates to a louver material, its construction method, and a louver structure.

In general, this type of louver material is used as a louvered ceiling or louvered wall by being applied to the ceiling or wall of a building. For example, as shown in Patent Document 1, a plurality of louver materials as ceiling louvers are arranged perpendicular to the stringer suspended from the ceiling, and each louver material is attached to the stringer at the upper end. It is known that the ceiling part has a watermark structure by fixing with bolts.

Further, the applicant of the present application has previously proposed a louver material (decorative rib material) disclosed in Patent Document 2. This louver material is a combination of a core member with a U-shaped cross section such as plywood and a decorative member of the same shape, and the core member is screwed to the base material of the ceiling or wall at the bottom. A decorative member covers the core member from the opening side, and the decorative member is adhered to the outer surface of the side wall portion of the core member at the inner surface of the side portion, and the side of the decorative member. It is fixed to the side wall portion of the core member by a nail penetrating through the portion.

Japanese Patent No. 5920715 Japanese Patent Application Laid-Open No. 2020-159158

By the way, in the above Patent Document 2, after screwing the core member to the base material, the decorative member is put on the core member and nailed to form the louver material. In the case of the louver structure, it is necessary to screw the core member of the louver material to the base material (roofing) from below, and the construction by screwing is troublesome.

Moreover, since it is a screw-fastened structure, if the position of the louver material is changed even slightly, it cannot be removed or moved without removing the screw. If the screw holes overlap, there will be restrictions on changing the position, making it difficult to make fine adjustments after construction. In addition, if there are many traces of screw holes, the strength of the base material is weakened, so the position cannot be changed many times.

In addition, since the decorative member is applied after fixing the core member to the base material, the work becomes troublesome. These problems left room for improvement.

On the other hand, the louver material disclosed in Patent Document 1 is a finished product by itself, and is fixed to a stringer as a base material by bolts. It's easy.

On the other hand, however, the louver material of Patent Document 1 is composed of a single member itself. Different types of louver materials are required. In particular, when the louver material is formed from an extruded material, it is necessary to prepare an extrusion molding die for each of a plurality of types, which inevitably increases manufacturing expenses and costs.

The present invention has been made in view of these points, and its main object is to easily manufacture louver materials with different heights and widths at low cost by devising the structure of the louver material. To facilitate construction and position adjustment of a louver material.

In order to achieve the above object, in the present invention, a core material that is detachably fixed to a base material is used, and a decorative material separate from the core material is fixed and integrated to the core material to form a louver material. made it

Specifically, the first invention is a louver material that is detachably installed on a base material to form a louver structure on the ceiling or wall of a building, and the louver material is attached to the base material. A core material having a fixing portion detachably fixed on the base end side, and a decorative material having a U-shaped cross section integrally fixed to the core material while covering the core material from the distal end side. there is The core member includes a pair of side wall portions that are arranged and connected to face each other, and a tip end side projecting portion that is provided on the tip side of both side wall portions so as to protrude outward from the both side wall portions. and a recessed groove portion for accommodating the distal end side projecting portion of the core material is provided on the inner surface of the decorative material, and the groove width of the recessed groove portion is larger than the thickness of the distal end side projecting portion. It is characterized in that the tip-side projecting portion is accommodated in the recessed groove portion with a gap therebetween, and the inner surface of the decorative material is adhered and fixed to the outer surface of the side wall portion of the core material with an adhesive .

In the first aspect of the invention, the louver material is formed by integrating the core material and the decorative material that is adhesively fixed while covering the core material. is detachably fixed to the base material of the Therefore, when constructing the louver material, it is only necessary to fix the core material of them to the base material at the fixing portion, eliminating the need for conventional screw fastening work, thereby facilitating the construction of the louver material. Moreover, by fixing and integrating the core material and the decorative material in advance, it is unnecessary to fix the core material to the base material and fix the decorative material to the base material at the construction site. Construction work becomes easier.

In addition, since the louver material is detachably fixed to the base material at the fixing part of the core material, when changing the position of the louver material, it is only necessary to loosen the fixation at the fixing part and change the position. , its fine adjustment can be easily made without restrictions. Moreover, unlike the case of screwing, screw holes do not remain in the base material, and the strength of the base material is not lowered.

Since the louver material is formed of two members, the core material and the decorative material, the core material can be given the role of fixing to the base material, and the decorative material can be given the role of decoration. . Therefore, if you want to change the height and width of the louver material to create variations in the louver structure, it is enough to keep the shape of the core material constant and use only the decorative materials with different heights and widths. Unlike the case of using an extruded material, it is not necessary to prepare a plurality of types of molds, and the manufacturing cost of the louver material can be reduced.

In addition, since the decorative material covering the core material is fixed and integrated with the core material by means of an adhesive, the decorative material does not leave traces of nailing, and the design of the louver material can be enhanced.

Furthermore, due to the structure in which the tip end side projecting portion of the core material is housed in the concave groove portion of the inner surface of the decorative material with a gap, the difference in the expansion rate due to the difference in the material between the core material and the decorative material causes relative movement. When this occurs, the difference in movement (difference in dimensional change) can be absorbed by the gap between the recessed groove portion and the projecting portion on the tip end side, and the adhesive that adheres the inner surface of the decorative material to the outer surface of the side wall portion of the core material. Until it hardens, the decorative material can be fixed to the core material so that it does not fall out of position due to a large displacement. Even if the louver material is lost, the projection on the tip side is caught in the recessed groove as a projection to prevent the decorative material from falling off, and the louver material can be stably held for a long period of time.

A second invention is the louver material according to the first invention, characterized in that the core material is provided with a positioning portion that abuts against the opening-side end surface of the decorative material and positions the decorative material with respect to the core material. .

In the second aspect of the present invention, when the core material is covered with the decorative material and fixed and integrated, the decorative material is brought into contact with the core material by bringing the opening side end surface of the core material in the covering state into contact with the positioning portion of the core material. positioned against. As a result, even if the louver material consists of two members, the core material and the decorative material, the decorative material can be easily positioned, and the workability during manufacturing and construction is improved .

A third aspect of the invention is characterized in that, in the louver material of the first aspect of the invention, a concave portion is formed on the inner surface of the decorative material to hold the adhesive.

In the third aspect of the invention, a recess is formed in the inner surface of the decorative material, and the recess stores an adhesive for fixing the decorative material to the core material. By accumulating the adhesive in the concave portion in this way, a large amount of the adhesive is secured between the inner surface of the decorative material and the outer surface of the side wall portion of the core material, and the thickness of the adhesive increases, resulting in the anchor effect. can also be obtained and the adhesive strength can be increased.

A fourth invention is the louver material according to any one of the first to third inventions, wherein the adhesive is an elastic adhesive.

In the fourth aspect of the invention, since the adhesive disposed between the inner surface of the decorative material and the outer surface of the side wall portion of the core material is an elastic adhesive, a difference in dimensional change occurs between the decorative material and the core material. However, it can be absorbed by the adhesive, and the adhesive state between the two can be maintained stably.

A fifth invention is the louver material according to any one of the first to fourth inventions, wherein the decorative material is an elongated plate-like body having a U-shaped cross section along a plurality of longitudinally extending bent portions. It is characterized by being folded.

In the fifth aspect of the invention, the elongated plate-like body is bent into a U-shaped cross section along a plurality of bent portions extending in the longitudinal direction to form the decorative material. Therefore , in the case of using an adhesive , the adhesive is applied when the decorative material is in an unfolded plate-like body that is not folded into a U-shaped cross section, and the adhesive is applied while bending the plate-like body. By covering and fixing the core material, the decorative material and the core material can be integrated to form the louver material. In this way, the louver material can be manufactured easily.

A sixth invention is characterized in that, in the louver material according to any one of the first to fifth inventions, the decorative member is made of a noncombustible material. In this way, a noncombustible louver material can be easily obtained by using a noncombustible decorative material.

A seventh invention relates to a louver structure, and this louver structure is characterized in that the louver material of any one of the first to sixth inventions is applied to the base material of the ceiling or wall of a building. . This invention also provides the same effects as the first invention.

An eighth invention is a method for constructing a louver material according to any one of the first to sixth inventions, wherein the core material and the decorative material are integrated by covering and fixing the decorative material on the core material. and a step of fixing the core material to a base material by means of a fixing portion.

In the eighth aspect of the invention, the core material is covered with the decorative material and they are adhered and fixed, thereby forming a louver material in which the core material and the decorative material are integrated. On the other hand, in this louver material, the core material is fixed to the base material by its fixing portion. A louver structure is constructed by combining two processes. In this case, by fixing the decorative material to the core material in advance to prepare the louver material, it is only necessary to fix the louver material to the base material at the construction site, and workability during construction can be improved.

As described above, according to the present invention, the louver material is configured to include a core material detachably fixed to a base material and a decorative material covering the core material. The outer surface of the side wall portion of the material and the inner surface of the decorative material are integrally fixed with an adhesive . As a result, it is not necessary to screw the louver material to the base material, and the position can be easily adjusted. In addition, even louver materials with different heights and widths can be easily manufactured at low cost by changing only the decorative material, and cost reduction of the louver structure with excellent design can be achieved. In addition, a tip-side protruding portion is provided on the tip side of the side wall of the core material, and a concave groove is provided on the inner surface of the decorative material, and the tip-side protruding portion is accommodated in the concave groove with a gap. As a result, the gap between the recessed groove and the projection on the distal end side can absorb the difference in relative movement due to the difference in expansion coefficient between the core material and the decorative material, and the adhesive can be used as well. Until the louver hardens, the decorative material can be fixed to the core material so that it does not fall off due to a large displacement. There is an advantage that the material can be stably held for a long period of time.

FIG. 1 is a cross-sectional view of a louver material according to an embodiment of the present invention. FIG. 2 is an enlarged cross-sectional view of a main part of the louver material. FIG. 3 is an exploded perspective view of the louver material. FIG. 4 is a plan view of the louver material. FIG. 5 is a side view of the louver material. FIG. 6 is a view corresponding to FIG. 1 in which fixing bolts and nuts are attached to the louver material. FIG. 7 is a cross-sectional view of the core material. FIG. 8 is a cross-sectional view of the decorative material. FIG. 9 is a cross-sectional view showing the state of application of the adhesive when the decorative material is unfolded. FIG. 10 is a plan view showing the louver ceiling as viewed from below. FIG. 11 is a front view of a louvered ceiling. FIG. 12 is a side view of a louvered ceiling. FIG. 13 is a front view of the stringer. FIG. 14 is a plan view of the stringer.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail based on the drawings. The following descriptions of the embodiments are merely exemplifications in nature, and are not intended to limit the invention, its applications, or its uses at all.

1 to 5 show a louver material L according to an embodiment of the invention. As shown in FIGS. 10 to 12, the louver material L is used to form a louver structure under stringers 31, 31, . . . Each stringer 31 is detachably constructed.

As shown in FIGS. 13 and 14, the stringer 31 is a long piece of metal, such as iron, having a substantially L-shaped cross section, in which the upper and lower horizontal portions 31a and 31b are connected at one end in the width direction by a vertical portion 31c. consists of As shown in FIGS. 11 and 12, suspension bolts 35, 35, . . . hang down from the ceiling of the space in the building. The stringer 31 is placed in the hanger 38 at its lengthwise end and intermediate portion and rests on its bottom, and the screw hole 33 (Fig. 13) is supported by screw bolts 40 screwed together so as not to come off. The stringer 31 is thus suspended from the ceiling.

In the lower horizontal portion 31b of the stringer 31, a plurality of U-shaped grooves are formed by notching a portion of the lower horizontal portion 31b from the other edge portion on the opposite side of the vertical portion 31c to near the vertical portion 31c. Grooves 32 , 32 , .

As shown in FIGS. 1 to 5, the louver material L includes a core material 1 detachably fixed to the stringer 31 (backing material), and attached to the core material 1 on the tip end side of the core material 1 (see FIG. 7). and a decorative material 20 having a U-shaped cross section integrally attached with an adhesive A while covering from the lower side), and as shown in FIG. It is slightly longer, and both ends of the decorative material 20 protrude from the core material 1. - 特許庁

The core material 1 and the decorative material 20 are preferably fixed with the adhesive A as described above, but a double-sided tape or the like can also be used. In addition, although traces can be seen on the surface of the decorative material 20, nails such as finish nails or screws can also be used.

The core material 1 is a long material made of metal, resin, or the like, and is made of extruded aluminum in this embodiment. As shown in FIG. 7, the core material 1 is in the shape of a rectangular tube having a rectangular cross section, and includes a pair of side wall portions 2, 2 arranged facing each other in the horizontal width direction. and a lower wall portion 4 connecting the distal end portions of the side wall portion 2 at the lower end of FIG. The vertical dimension in FIG. 7) is larger than the width (horizontal dimension in FIG. 7).

In the upper wall portion 3 located on the base end side of the core member 1, a slit-shaped bolt insertion groove 6 penetrating through the upper wall portion 3 is continuously formed in the center of the width direction of the core member 1 over the entire length direction. It is formed so that it may extend. A partition wall portion 7 is formed in the upper and lower intermediate portions of the core member 1 to divide the inside of the core member 1 into two upper and lower spaces. Then, as shown in FIG. 6, the head portion B1 of the fixing bolt B is inserted into the bolt accommodating portion 8 from the longitudinal end portion of the core member 1 and accommodated, and the shaft portion B2 of the fixing bolt B is inserted into the bolt insertion groove. 6 is projected upward from the core material 1, the projecting portion is inserted into the U-shaped groove 32 in the lower horizontal portion 31b of the stringer 31, and a nut N is screwed to the upper end portion of the U-shaped groove 32 inserted. By sandwiching the upper wall portion 3 of the core material 1 and the lower horizontal portion 31b of the stringer 31 between the head B1 of the bolt B and the nut N, the core material 1 of the louver material L is placed under the stringer 31. He is trying to fix to the horizontal part 31b. On the other hand, by loosening the nut N and allowing the shaft portion B2 of the bolt B to escape from the opening of the U-shaped groove 32, the core material 1 of the louver material L is removed from the lower horizontal portion 31b of the stringer 31. there is Therefore, in the present embodiment, the bolt insertion groove 6 and the bolt accommodating portion 8 constitute the fixing portion 9 that is detachably fixed to the stringer 31, and the core member 1 has the fixing portion 9 on the base end side.

Incidentally, as shown in FIGS. 1 and 7, on the inner surfaces of the side walls 2, 2 in the bolt accommodating portion 8 of the core member 1, ridges 10, 10 protruding toward the bolt accommodating portion 8 are formed on the core member 1. The projections 10, 10 are formed along the length direction, and the distance between the projections 10, 10 is formed to be slightly larger than the minimum dimension of the head portion B1 of the fixing bolt B. A bolt B is prevented from rotating inside. 6, W is a washer interposed between the nut N and the upper wall portion 3 of the core member 1. As shown in FIG.

The upper wall portion 3 on the base end side (upper side in FIG. 7) of the core material 1 has an upper overhanging portion 12 as a positioning portion that slightly overhangs in the width direction from other portions so as to extend the upper wall portion 3. , 12 (protruding portion on the base end side), and on the lower wall portion 4 on the distal side (lower side in FIG. 7), similarly, a lower protruding portion slightly protruding in the width direction so as to extend the lower wall portion 4 is provided. Portions 13 and 13 (tip-side protruding portions) are integrally provided, and the protruding dimension of each upper protruding portion 12 is slightly larger than that of each lower protruding portion 13 .

In this way, by projecting the upper overhanging portions 12, 12 greatly, when fixing the louver material L to the stringer 31 (backing material), the core material 1 is spread over a wide area with the stringer 31 by the upper overhanging portions 12, 12. The louver material L is brought into close contact with the stringer 31 so as not to wobble.

On the other hand, as shown in FIG. 8, the decorative member 20 has a U-shaped cross-section that is open on one side (upper side), and includes a plate-like front portion 20a and both ends in the width direction of the front portion 20a. It has a pair of plate-like side portions 20b, 20b that extend in the same direction and parallel to the upper side by the same dimension, and are made of a noncombustible material such as a volcanic vitreous double plate or other inorganic material. there is As shown in FIG. 9, the decorative member 20 is formed with a plurality of notches extending in the longitudinal direction at the middle portion in the width direction of a long plate-like body. It is bent at right angles along the bent portion 21 (notch) to have a U-shaped cross section, and the applicant of the present application has already applied for a detailed structure (see Japanese Patent Application Laid-Open No. 2019-085719). .

The distance between the inner surfaces of both side portions 20b, 20b of the decorative material 20 (adhering portion 23, which will be described later) is larger than the distance between the outer surfaces of the side walls 2, 2 of the core member 1 by a constant small dimension. In addition, the distance from the inner surface of the front portion 20a, which is the inner bottom surface of the decorative member 20, to the base end surface of the side portion 20b (the end surface of the decorative member 20 on the opening side) is the vertical direction of the outer surface of each side wall portion 2 in FIG. is much larger than the width of The distance from the inner surface of the front part 20a of the decorative material 20 to the base end surface of the side part 20b relates to the height position of the louver material L from the stringer 31 at a certain height position, and the height of the core material 1 While the height position is constant like the stringer 31, the height position of the louver material L is changed by changing the distance. When the height position of the louver material L is increased, a decorative material 20 with a small distance is prepared, and when the height position of the louver material L is decreased, a decorative material 20 with a large distance is prepared. Therefore, the distance should be the same as or larger than the width of the outer surface of the side wall portion 21b of the core member 1 .

On the inner surfaces of both side portions 20b, 20b of the decorative member 20, adhesive portions 23 are formed which are bonded to the outer surfaces of the side wall portions 2 of the core member 1 with the adhesive A. As shown in FIG. The adhesive portion 23 is a range (region) sandwiched between the upper overhanging portion 12 and the lower overhanging portion 13 of the core material 1 when the decorative material 20 is put on the core material 1. Even if the adhesive A tries to move to other than the bonding portion 23, the upper and lower overhanging portions 12 and 13 of the core material 1 act as stoppers to prevent the movement. This allows the adhesive A to be held in the adhesive portion 23 .

As shown in FIG. 9, when the decorative material 20 is in a plate-like state in which the decorative material 20 is not folded into a U-shaped cross section, an adhesive A is applied to both of the adhesive portions 23, 23, and the adhesive is The decorative material 20 in the application state of A is closed from the unfolded state to have a U-shaped cross section, and the core material 1 is covered from the tip side from the opening side, and the end face of the opening side of the decorative material 20 is used as a positioning part of the core material 1. By moving a little until it abuts on the upper overhanging portion 12 of the core material 1, the adhesive A is spread in the surface direction between the bonding portion 23 and the outer surface of the side wall portion 2 of the core material 1 to a certain thickness (for example, 0.5 to 2 mm ) to form a layer of the adhesive A. That is, the upper overhanging portion 12 of the core member 1 serves as a positioning portion for positioning the decorative member 20 with respect to the core member 1 by contacting the end surface of the decorative member 20 on the opening side.

As the adhesive A, it is desirable to use an elastic adhesive such as a modified silicon-based adhesive. If the core material 1 is, for example, an aluminum extruded material, and the decorative material 20 is a noncombustible material such as a volcanic vitreous double layer plate or other inorganic material, the expansion coefficients of the two materials will differ. This is to absorb the difference in movement (difference in dimensional change) when relative movement may occur.

Furthermore, as shown in an enlarged view in FIG. 2, a single groove-shaped concave portion 24 extending along the entire length of the decorative material 20 is formed in the bonding portion 23 on the inner surface of each side portion 20b of the decorative material 20. A portion of the adhesive A is stored in this recess 24 . The groove-shaped concave portion 24 has a depth of about 1 mm and a width of about 5 mm, for example. A plurality of groove-like recesses 24 may be formed in parallel or intersecting. Further, the concave portion 24 may not be formed over the entire length of the decorative material 20, and may be formed intermittently. Further, the shape of the concave portion 24 is not limited to the shape of the groove, and the concave portion 24 may have a shape other than the shape of the groove. In short, any shape may be used as long as the adhesive A positioned at the bonding portion 23 is accumulated. The concave portion 24 accumulates excess adhesive A and exhibits an anchoring effect for the adhesive A. As shown in FIG.

Further, on the inner surface of each side portion 20b of the decorative material 20, a single groove 26 extending in the longitudinal direction of the decorative material 20 extends over the entire length of the decorative material 20 on the tip side of the adhesive portion 23. formed. The recessed groove portion 26 accommodates the lower projecting portion 13 of the core member 1 . The groove width of the recessed groove portion 26 is larger than the thickness of the lower projecting portion 13, and the lower projecting portion 13 is accommodated in the recessed groove portion 26 with a gap therebetween. In this structure as well, when relative movement occurs due to the difference in expansion coefficient between the core material 1 and the decorative material 20, the difference in movement (difference in dimensional change) is A gap between the portion 13 and the portion 13 allows absorption. At the same time, until the adhesive A is cured, the effect of fixing the decorative material 20 to the core material 1 so as not to be greatly displaced and fall, and furthermore, the adhesion state of the decorative material 20 to the core material 1 Even in the event that the adhesive A loses its adhesive effect due to deterioration or the like, the lower protruding portion 13 is caught in the recessed groove portion 26 as a protrusion to prevent the decorative material 20 from falling off, and the louver material L can be lengthened. It has the effect of stably holding over a period of time.

As shown in FIGS. 4 and 5, end caps 29, 29 are fitted to both ends of the louver material L in the longitudinal direction to close the end openings of the core material 1 and the decorative material 20 at the same time. is fixed.

Next, a method for constructing a ceiling having a louver structure using the louver material L configured as described above will be described. For example, as shown in FIGS. 10 to 12, a plurality of stringers 31, 31, . When constructing the louver material L, a plurality of louver materials L, L, . . .

As a desirable method, first, the decorative material 20 is fixed to the core material 1 with the adhesive A and integrated, thereby forming the louver material L in which the core material 1 and the decorative material 20 are integrated. After that, the louver material L is fixed to the stringer 31 by the fixing port B and the nut N at the fixing portion 9 (the bolt insertion groove 6 and the bolt housing portion 8) of the core member 1. As shown in FIG.

Specifically, as shown in FIG. 9, the decorative material 20 is formed into a plate-like body in an unfolded state without being bent into a U-shaped cross section. Adhesive A is applied to the portion corresponding to the portion 23 . FIG. 9 shows a state in which the adhesive A is applied to only one location on the inner surface of each side portion 20b of the decorative material 20, but it may be applied to a plurality of locations, and the application method is not limited. If it is applied to or near it, the anchor effect can be reliably exhibited.

After that, the plate-shaped body of the decorative material 20 coated with the adhesive A is folded at the bending portions 21, 21, . At this time, the lower protruding portion 13 of the core member 1 is accommodated in the concave groove portion 26 on the inner surface of the side portion 20b of the decorative member 20. As shown in FIG. The covered decorative material 20 is slightly moved relative to the core material 1, and the end surface of the decorative material 20 on the opening side is brought into contact with the upper projecting portion 12 as a positioning portion of the core material 1. As shown in FIG. Due to such relative movement, the adhesive A spreads in the plane direction between the adhesive portion 23 and the outer surface of the side wall portion 2 of the core member 1, and the adhesive A has a constant thickness (for example, 0.5 to 2 mm). A layer is formed. In this way, the decorative material 20 is adhered to the core material 1 and integrated, and the louver material L is formed.

At this time, since the upper overhanging portion 12 is formed on the core member 1, when positioning the decorative member 20 on the core member 1, the end surface of the decorative member 20 on the opening side is only brought into contact with the overhanging portion 12. , the upper protruding portion 12 serves as a positioning portion, and the decorative material 20 can be easily positioned with respect to the core member 1 by the positioning portion. That is, even if the louver material L is composed of two members, the core material 1 and the decorative material 20, the positioning of the decorative material 20 is facilitated, thereby improving the workability in manufacturing the louver material L. can be made

In addition, since the recessed portion 24 is formed in the bonding portion 23 of the decorative material 20, the recessed portion 24 functions as an adhesive reservoir, and the adhesive A is accumulated, so that the layer of the adhesive A is stably formed. be done.

The formation of the louver material L up to this point may be performed at the construction site, but is preferably performed at the manufacturing factory.

When the louver material L in which the decorative material 20 is integrated with the core material 1 is thus formed, for example, at the construction site, as shown in FIG. The heads B1 of the fixing bolts B, B, . . . The core member 1 is projected upward from the groove 6, and a nut N is screwed onto the projected shaft portion B2 via a washer W. At that time, the number of fixing bolts B, nuts N screwed thereto, and washers W is the number of stringers 31 to which each louver member L is attached. There are two cases where it is fixed over . As shown in FIG. 10, when each louver member L is fixed over four stringers 31, 31, . . . , four fixing bolts B, nuts N and washers W are used.

The portion between the washer W (nut N) and the upper wall portion 3 of the core member 1 in the shaft portion B2 of the fixing bolt B to which the nut N is screwed is the U-shaped portion of the lower horizontal portion 31b of each stringer 31. The opening side of the groove 32 is inserted into the groove 32, and then the nut N is screwed and fastened to hold the upper wall portion 3 of the core member 1 between the head portion B1 of the bolt B and the washer W (nut N) and the stringer. 31 and the lower horizontal portion 31b. As a result, the core material 1 of each louver material L is fixed to the lower part of the stringer 31 . The plurality of louver members L, L, . . . form a ceiling portion with a louver structure.

When changing the position of the louver material L with respect to the stringer 31 for adjustment or the like, loosen the nut N, shift the position of the bolt B on the louver material L, and after reaching the correct position, tighten the nut N and tighten the louver material L. is fixed to the stringer 31. The louver material L can be removed from the stringer 31 by letting the fixing bolt B escape from the opening of the U-shaped groove 32 .

Instead of screwing the nut N onto the bolt B in advance, the nut N may be screwed onto the shaft portion B2 via the washer W after the shaft portion B2 of the bolt B is inserted into the U-shaped groove 32 . This method can be adopted when a through hole is formed in the lower horizontal portion 31b of the stringer 31 instead of the U-shaped groove 32, but it is not essential in the case of the U-shaped groove 32.

Note that, as in the above method, the core material 1 is fixed to the stringer 31 without first forming the louver material L, and then the decorative material 20 is adhesively fixed to the core material 1 to form the louver material L. can also be adopted. However, it is necessary to apply the adhesive A to the decorative material 20 at the construction site and to adhere and fix the decorative material 20 to the core material 1, which is troublesome. On the other hand, in the method of forming the louver material L by bonding and fixing the decorative material 20 to the core material 1 in advance, the bonding process can be performed at the manufacturing factory of the louver material L, and the construction site can be reduced. This is advantageous because it simplifies the work.

Therefore, in this embodiment, the louver material L is formed by integrating the core material 1 and the decorative material 20 that is adhered and fixed while covering the core material 1. It is detachably fixed to the stringer 31 (backing material) of the ceiling portion by a fixing bolt B having a head portion B1 housed in the portion 8 and a nut N screwed onto the shaft portion B2 of the bolt B. Therefore, when constructing the louver material L, only the core material 1 of the louver material L in which the decorative material 20 is fixed and integrated with the core material 1 is fixed to the stringer 31 by the fixing bolt B and the nut N. can be constructed, the conventional work of screwing is not necessary, and the construction of the louver material L can be easily performed. Moreover, as described above, if the core material 1 and the decorative material 20 are fixed and integrated in advance to form the louver material L, the core material 1 is fixed to the stringer 31 at the construction site, and the decorative material 20 is attached to the stringer 31 at the construction site. This eliminates the need for twice the trouble of fixing the , and simplifies the construction work.

Further, the core member 1 is detachably fastened and fixed to the U-shaped groove 32 of the stringer 31 by a fixing bolt B having a head portion B1 accommodated in the core member 1 and a nut N screwed on the bolt B. Therefore, when changing the position along the length of the louver material L, loosen the bolt B and nut N to change the position, and after adjusting the position, tighten the nut N to the bolt B again. and the fine adjustment can be easily performed without restrictions. In addition, there is no possibility that a screw hole remains in the stringer 31 unlike screw fastening, and the strength of the stringer 31 is not lowered.

Furthermore, since the decorative material 20 covering the core material 1 of the louver material L is fixed and integrated with the core material 1 with the adhesive A, the decorative material 20 can be nailed like a structure fixed by nailing. No marks are left, and the design of the louver material L can be enhanced.

Since the louver material L is formed of two members, the core material 1 and the decorative material 20, the core material 1 is given the role of fixing to the stringer 31 (backing material), and the decorative material 20 can have a cosmetic role. Therefore, when it is intended to change the height and width of the louver material L to provide variations in the louver structure, the shape of the core material 1 is kept constant, and only the decorative material 20 is made into various types with different heights and widths. It will be done. That is, it is not necessary to prepare a plurality of types of molds unlike the case of using a louver material made of an extruded material, and the manufacturing cost of the louver material L can be reduced.

In the louver material L, a concave portion 24 for storing the adhesive A is formed in the bonding portion 23 of the inner surface of each side portion 20b of the decorative material 20. Adhesive A for fixing to is stored. Since the adhesive A is stored in the concave portion 24 in this way, a large amount of the adhesive A is secured between the adhesive portion 23 on the inner surface of the decorative material 20 and the outer surface of the side wall portion 2 of the core member 1. The thickness of the layer becomes thicker, and the adhesive strength can be increased due to the anchor effect.

Moreover, if the adhesive A disposed between the adhesive portion 23 on the inner surface of the side portion 20b of the decorative material 20 and the outer surface of the side wall portion 2 of the core material 1 is an elastic adhesive, the decorative material 20 and the core material Even if there is a difference in dimensional change between the two due to the difference in material from that of 1, the difference is absorbed by the adhesive A, and the state of adhesion between the two can be stably maintained.

Further, the decorative material 20 of the louver material L is formed by bending an elongated plate-like body into a U-shaped cross section along a plurality of bending portions 21, 21, . . . Adhesive A is applied when 20 is in a plate-like body in a developed state that is not bent into a U-shaped cross section, and core material 1 is folded while bending the plate-like body to which adhesive A is applied as described above. By covering and fixing the decorative material 20 and the core material 1, the louver material L can be formed by integrating the decorative material 20 and the core material 1. As a result, the louver material L can be manufactured easily.

Since the decorative material 20 of the louver material L is a noncombustible material, the louver material L becomes a noncombustible louver material by the decorative material 20 of the noncombustible material, and a louver ceiling having a noncombustible structure made of the noncombustible louver material can be easily obtained. can.

(Other embodiments)
In the above-described embodiment, the decorative material 20 in the louver material L is made of a noncombustible material such as a volcanic vitreous double layer plate. It may be made of a material such as wood material such as MDF.

Further, in the above embodiment, a plurality of louver materials L, L, . . . are fixed to the stringers 31, 31, . However, the louver material L can also be used for a wall with a louver structure (louver wall) constructed on the wall of a building. In that case, if a plurality of louver materials L, L, . . . Well, the mounting structure is the same as the above embodiment, and the construction method is also the same. This results in a louvered wall in which the louvered material L is applied to the walls of the building.

The present invention makes it possible to easily adjust the position of the louver material without screwing the louver material, improve the workability of the louver material, and easily at low cost even if the louver material is different in height and width. It can be manufactured, is extremely useful, and has high industrial applicability.

L Louver Material 1 Core Material 2 Side Wall Part 3 Upper Wall Part 6 Bolt Insertion Groove 8 Bolt Receiving Part 9 Fixed Part 10 Ridge 12 Overhanging Part (Positioning Part)
13 lower projecting portion 20 decorative material 20b side portion 21 bent portion 23 bonding portion 24 concave portion 26 concave groove portion A adhesive B fixing bolt B1 head B2 shaft portion N nut 31 stringer (backing material)
32 U-shaped groove

Claims (9)

A louver material that is detachably installed on a base material to form a louver structure on the ceiling or wall of a building,
A core material having a fixing portion detachably fixed to the base material on the base end side, and a decorative material having a U-shaped cross section integrally fixed to the core material while covering the core material from the distal end side. and
The core material has a pair of side wall portions arranged in a state facing each other,
A louver material, wherein the inner surface of the decorative material and the outer surface of the side wall portion of the core material are fixed. In the louver material of claim 1,
1. A louver material, wherein a core material is provided with a positioning portion that abuts on an opening side end surface of the decorative material to position the decorative material with respect to the core material. In the louver material of claim 1 or 2,
A louver material characterized in that the inner surface of a decorative material is adhered and fixed to the outer surface of a side wall portion of a core material with an adhesive. In the louver material of claim 3,
A louver material characterized in that a concave portion for holding an adhesive is formed on the inner surface of the decorative material. In the louver material of claim 3 or 4,
A louver material, wherein the adhesive is an elastic adhesive. In the louver material according to any one of claims 1 to 5,
A louver material, wherein the decorative material is formed by bending an elongated plate-like body into a U-shaped cross section along a plurality of bending portions extending in the longitudinal direction. In the louver material according to any one of claims 1 to 6,
A louver material, wherein the decorative member is made of a noncombustible material. A louver structure, wherein the louver material according to any one of claims 1 to 7 is applied to a base material of a ceiling or wall of a building. A method for constructing a louver material according to any one of claims 1 to 7,
forming a louver material in which the core material and the decorative material are integrated by covering and fixing the decorative material to the core material;
A method of constructing a louver material, comprising a step of fixing the core material to a base material by means of a fixing portion.

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