Louver member for building use and louver member unit

Abstract

To provide a louver member composed of two parts, namely, a louver main body member and a louver tip member, where the louver member is surface-treated by affixing a decorative sheet to the louver tip member such that an edge of the decorative sheet is beautifully accommodated at a boundary between the louver main body member and the louver tip member without being exposed to an outside of the louver member.SOLUTION: A louver member 1 comprises: a louver main body member 2 attached along a base material CF; and a louver tip member 3 attached to a tip of the louver main body member 2. The louver tip member 3 comprises a cover surface portion 31 that covers a tip opening of the louver main body member 2. On both sides of the cover surface portion 31, bent portions 33, 33 are provided, which are folded toward a back side of the cover surface portion 31. Flat portions 32, 32 are disposed within the plane of the bent portions 33, 33. When a decorative sheet 6 is affixed to the cover surface portion 31, the flat portions 32, 32 are positioned inside the louver member 1 as affixation margins.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to an architectural louver material (hereinafter also simply referred to as "louver material") that constitutes louvers installed on the ceiling surface, inner wall surface, outer wall surface, and other spaces of a building. [Background technology]

[0002] Single-slope louvers installed on the ceilings of buildings are mainly made of extruded aluminum, and the surface treatment (color, pattern, unevenness, etc.) is the same on all three sides - the front, sides, and endpapers. Louvers constructed by arranging multiple louver materials with the same surface treatment all over on the ceiling surface can create a simple, unified ceiling space, but there is also a strong demand for louvers constructed using louver materials with partially different surface treatments to create a more distinctive space.

[0003] Louver materials with partially different surface treatments can be obtained, for example, by painting the surface of the louver material while masking part of it, or by partially attaching decorative sheets of different colors or patterns, but the processing is time-consuming and laborious, and the costs are inevitably high. In order to meet the demand for a more diverse range of louver materials, louver materials have been constructed from two components: a louver main body member that is attached to a support member such as a base material, and a louver tip member that is attached to the tip of this louver main body member.By differentiating the surface treatment of both components, it has become possible to see different colors and patterns on the side and tip sides of the louver material (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Design Registration No. 1740686 Summary of the Invention [Problem to be solved by the invention]

[0005] Interior louvers, such as the one-way slope louvers used to decorate ceilings, are often surface-treated by attaching a decorative sheet with a wood grain look to the louver material. When the louver material is made up of two members, the louver body member and the louver tip member, as described above, and a decorative sheet is attached to the louver tip member, the side edges of the decorative sheet are exposed along the ends of both sides of the louver body member.

[0006] Although the side edges of the decorative sheet exposed on the surface of the louver material are not easily noticeable from a distance, the decorative sheet may expand and contract due to the effects of temperature, humidity, and changes over time after the louvers are installed, causing the side edges of the decorative sheet to float or partially peel off, and the boundary between the end of the louver tip member and the end of the louver main body member may become clearly visible, reducing the decorativeness of the louver. When attaching a decorative sheet to the louver tip member, it is desirable not to expose the side edges of the decorative sheet so that they are not visible from the outside.

[0007] Furthermore, when a louver material is composed of two components, a louver main body member and a louver tip member, the corner where the ends of the two components butt against each other is exposed as a stripe. If the surface colors of the louver main body member and the louver tip member are different, the boundary at the corner of the two components is clearly exposed and stands out. Even if a louver main body member decorated with a different color or pattern is attached to the louver material, it is preferable to make the joint part of the ends of the two components less noticeable in order to improve the design of the louver.

[0008] Furthermore, if the louver material is constructed of two components, a louver main body member and a louver tip member, and the surface treatment of these two components is made different, and louver tip members with different cross-sectional shapes can be selectively attached to the louver main body member, this will further diversify the shapes of the louver material and make it possible to expand the range of louver designs at less cost, which is preferable.

[0009] In view of the problems of the conventional technology, the present invention aims to construct a louver material from two members, a louver main body member and a louver tip member, and to neatly arrange the boundary between the end of the louver main body member and the end of the louver main body member when a decorative sheet is attached to the louver tip member as a surface treatment without exposing the side edge of the decorative sheet to the outside of the louver material. The present invention aims to make the joint between the end of the louver material and the louver main body member inconspicuous. Another aim of the present invention is to diversify the shapes of the louver material by combining a louver main body member with a louver tip member having a different cross-sectional shape that can be attached to it. [Means for solving the problem]

[0010] The louver tip member is a member formed in a long length by aluminum extrusion together with the louver main body member, and is attached to the tip opening of the louver main body member to form the louver material. In order to prevent the edge of the decorative sheet from lifting or partially peeling off when the decorative sheet is attached to the surface of the cover surface of the louver tip member that closes the tip opening of the louver main body member, it is preferable that a flat surface of sufficient width is secured on both sides of the cover surface of the louver tip member, where the edge of the decorative sheet is attached. In addition, in order to hide the edge of the decorative sheet attached to the surface of the louver tip member when the louver tip member is attached to the louver main body member, it is preferable that the flat surface is located in the area on the back side of both end portions of the cover surface of the louver tip member.

[0011] In consideration of the above-mentioned viewpoints, in order to solve the above-mentioned problems, the present invention provides a louver member comprising a louver body member and a louver tip member attached to the tip of the louver body member, The louver main body member has an opening between the tips of its two side portions, and the louver tip member has a cover surface portion that covers the tip opening of the louver main body member, and is characterized in that a flat portion is arranged in the back surface area of ​​each of both side ends of the cover surface portion.

[0012] In the louver material having the above-described configuration, the flat portions can be provided on both sides of the cover surface within surfaces that are curved or inclined toward the back surface of the cover surface (see Figures 6(A), (B) and (C)). In addition, the flat portion can be provided on the back surface of both side ends of the lid surface portion by providing a tapered surface portion that is inclined toward the back surface of the lid surface portion, and can be provided on the back surface of both side ends of the lid surface portion, connected to this tapered surface portion (see the same figures (D) and (E)).

[0013] According to the louver material of the above configuration, by making the surface treatment of the louver tip member different from that of the louver main body member and attaching it integrally to the louver main body member, it is possible to construct a louver material in which the surface decorative aspects such as color and pattern differ in parts. Here, surface treatment refers to decoration applied to the surface of the louver material, and includes directly applying an appropriate color or pattern to the surface by painting or the like, attaching a decorative sheet with a color or pattern, forming unevenness on the surface by knurling or the like, mirror finishing, etc. By constructing a louver using louver materials with partially different surface treatments, it becomes possible to create a unique decoration in the space in which the louver is installed. Of course, the louver material may be constructed by integrally attaching a louver tip member that has been subjected to the same surface treatment as the louver main body member to the louver main body member.

[0014] Furthermore, with the louver material having the above-described configuration, flat portions are provided in the areas on the rear surface side of both side ends of the cover surface of the louver tip member, which are the ends of the louver material. This flat portion is a portion that will become the bonding margin or glue margin of the side edge of the decorative sheet when the decorative sheet is attached as the surface treatment of the louver tip member, and refers to a portion formed on a substantially flat surface with no or few irregularities so that the side edge of the decorative sheet can be attached tightly. As long as it is possible to reliably attach the side edge of the decorative sheet, the surface of the flat portion may have fine uneven streaks or small uneven portions, and as long as the flat portion is secured, it may have uneven portions around it. Since flat portions are provided on the back surface areas of both side ends of the cover surface of the louver tip member, when attaching the decorative sheet to the surface of the louver tip member, the decorative sheet is overlapped over the cover surface and the flat portions on both sides, and the both side edges of the decorative sheet are attached by wrapping them around the flat portions, thereby making it possible to firmly attach the decorative sheet to the surface of the louver tip member.

[0015] In other words, the operation of attaching a strip-shaped decorative sheet to the surface of the louver tip member, in a mode in which the flat portions are provided on both sides of the lid surface within a surface that is curved or inclined toward the back side of the lid surface, is carried out by overlapping the decorative sheet on the surface of the lid surface, folding back both side edge portions of the decorative sheet along both side end portions of the lid surface toward the back side of the lid surface, and attaching the decorative sheet by wrapping it around the flat portions provided on both sides of the lid surface within a surface that is curved or inclined toward the back side of the lid surface. In addition, in an embodiment in which the flat portion is provided on the back surface of both side portions of the lid surface portion, which are connected to tapered surface portions inclined toward the back surface side of the lid surface portion provided at both side ends of the lid surface portion, the decorative sheet is attached by folding back both side edge portions of the decorative sheet along both side ends of the lid surface portion toward the back surface side of the lid surface portion, and wrapping the decorative sheet around the tapered surface portions and the flat portions connected thereto, as described above. In either embodiment, when the decorative sheet is attached to the surface of the louver tip member, both side edges of the decorative sheet are folded back to the back side of the cover surface at both side ends and attached to flat portions provided in the area on the back side of both side ends of the cover surface, thereby making it less likely that the side edges of the decorative sheet will float or peel off partially.

[0016] Furthermore, with the louver material configured as described above, the flat portions to which the side edges of the decorative sheet are attached are provided in the back surface areas of both side ends of the cover surface of the louver tip member, so that when the louver tip member is attached to the louver main body member, the edges of the decorative sheet can be positioned inside the louver material and not exposed to the outside. Since the edges of the decorative sheet attached to the louver tip member are not exposed to the outside of the louver material, the boundary portion where the ends of the louver main body member and the louver tip member are connected is neatly contained, and the appearance of the louver material configured using this can be maintained good.

[0017] The width (SW) of the flat portions provided on both sides of the cover surface of the louver tip member is preferably set to a size that ensures a bonding portion for the side edge of the decorative sheet of at least 3 mm (see FIG. 6). In an embodiment in which the flat portions are provided on both sides of the lid surface portion within a surface that is bent or inclined toward the back surface side of the lid surface portion, it is preferable that a flat portion of the above width (SW) is provided from a base portion that is bent or inclined from the lid surface portion, and in an embodiment in which the flat portions are provided on the back surface of both sides of the lid surface portion that continues to a tapered surface portion that is inclined toward the back surface side of the lid surface portion and is provided at both end portions of the lid surface portion, a flat portion of the above width (SW) is provided from the end of the tapered surface portion.

[0018] Furthermore, the decorative sheet attached to the louver tip member as described above has both side edges wrapped around and attached to the flat surface on both sides of the cover surface, and when the louver tip member is attached to the louver main body member, the decorative sheet attached to the surface of the louver tip member is interposed at the interface between the end of the side portion of the louver main body member and the side end of the cover surface of the louver tip member, and when a decorative sheet is also attached to the surface of the louver main body member, the two decorative sheets attached to both members are interposed. When a decorative sheet is attached to one or both of the louver body member and the louver tip member in order to differentiate the surface treatment of the two members, if a certain amount of gap is not left between the ends of the two members where they butt against each other, the attachment of the two members may be insufficient or tears may appear in the decorative sheet sandwiched between the ends of the two members. From this viewpoint, it is preferable that the louver material is formed so that, when the louver tip members are attached to the louver main body member, a gap (G) at least the thickness of the decorative sheet is secured at the interface between the tips of both side portions of the louver main body member and both side ends of the cover surface portion of the louver tip member (see Figure 3). The gap (G) provided at the joint between the two components is preferably 0.1 to 0.2 mm wide, which corresponds to the thickness of one decorative sheet, when the decorative sheet is attached to either the louver main body component or the louver tip component, and 0.2 to 0.4 mm wide, which corresponds to the thickness of two decorative sheets, when the decorative sheet is attached to both components, since the thickness of the decorative sheet used to decorate the louver material is generally about 0.1 to 0.2 mm. On the other hand, if the gap (G) is too large, the components constituting the louver material will appear separated, reducing the design, so it is preferable that the gap (G) is smaller than 1 mm so that it is not noticeable.

[0019] Furthermore, when the louver material is constructed so that a gap (G) of appropriate width is ensured at the joint between the ends of the louver main body member and the louver tip member, it is preferable that the tips of both side portions of the louver main body member are formed with an inwardly sloping shape, and that the inclined surfaces of these ends and the surfaces sloping toward the back side of both side ends of the louver tip member are configured to face each other with a gap between them. With this, by fitting the joint at the corner where the ends of both components butt together into the joint between the inclined surfaces, the boundary between the corners of the two components becomes less noticeable, thereby improving the design of the louver material.

[0020] In a louver material of the above configuration, the louver tip member can be attached to the louver main body member by providing the louver main body member with mating portions on the inner surfaces of both side portions facing the opening at its tip, while providing the louver tip member with mating portions that matingly fit into the mating portions on the inner surfaces of both side portions of the louver main body member, placing the cover surface portion of the louver tip member over the tip opening of the louver main body member fixed to the base material, and mating the mating portions of the louver tip member with the mating portions of the louver main body member. In addition to fitting and fixing the two components by providing a fitting portion on one of the louver main body member and the louver tip member and a mating portion on the other, it is also possible to use a means of mechanically joining and fixing the two components, such as tightening the two components with bolts and nuts, or pressing the shaft portion on the louver main body member into a hole provided inside the louver main body member and pressing the two components together. The louver material of the above configuration can be attached to a support member such as a ceiling surface by attaching a through member to the support member and connecting the rear end side of the louver main body member to this through member. The through member and the rear end side of the louver main body member may each be provided with a portion that fits into each other, so that the through member and the rear end side of the louver main body member fit together and are fixed. Alternatively, the rear end side of the louver main body member may be fastened to the support member with a set screw. An opening is also provided on the rear end side of the louver main body member, and when a louver tip member is attached to this rear end opening to locate both the front and rear ends of the louver main body member, the louver material is attached by supporting the side portions of the louver main body member on the support member.

[0021] In the louver material having the above-mentioned structure, the louver main body member can have a crosspiece between both inner side surfaces, and the louver tip member can have a bearing protruding from the rear surface of the cover surface. With this, with the cover surface of the louver tip member covering the tip opening of the louver main body member, a set screw is screwed into the crosspiece from the back side of the louver main body member, and the tip of the set screw is screwed into the bearing portion of the louver tip member, thereby fastening and attaching the louver tip member to the louver main body member. By screwing the set screw for fixing the louver tip member from the back side of the louver main body member, the set screw is contained inside the louver material and is not visible from the outside of the louver material, and the appearance of the louver material can be maintained in a good condition. Furthermore, the louver main body member can be shaped so that a bearing portion protrudes from its slat, an end cover plate is placed on the end of the louver material, and two fastening screws are screwed into the surface of the end cover plate.The end of one fastening screw is screwed into the bearing portion provided on the slat of the louver main body member, and the end of the other fastening screw is screwed into the bearing portion provided on the cover surface of the louver tip member, thereby fastening and fixing the end cover plate to the louver material.

[0022] The present invention also provides a louver material unit having a louver body member attached along a support member and a louver tip member attached to a tip of the louver body member, the louver body member has an opening between both side surfaces at its tip, and the louver tip member has a cover surface portion that covers the tip opening of the louver body member, The louver material unit is characterized in that it comprises a plurality of louver end members having different cross-sectional shapes, and a louver end member selected from the plurality of louver end members is attached to the louver main body member to form the louver material. The cover surface of the louver tip member can be provided with flat portions on both side ends and on the back surface area thereof.

[0023] According to this, by constructing the louver material from two components, a louver main body member and a louver tip member, and by making the surface treatment of both components different, as well as selectively attaching louver tip members with different cross-sectional shapes to the louver main body member, it is possible to expand the louver design at less cost. Effect of the Invention

[0024] According to the present invention, when a decorative sheet is applied to a louver tip member as a surface treatment, the edge of the decorative sheet is not exposed to the outside of the louver material, and the boundary with the end of the louver main body member can be neatly fitted. Also, by combining the louver main body member with the louver tip member with a different cross-sectional shape to be attached thereto, it is possible to diversify the shapes of the louver material at low cost. [Brief description of the drawings]

[0025] [Figure 1] A diagram showing the end of a single-slope louver constructed using louver material of one embodiment of the present invention with the end cover plate of one louver material removed. [Diagram 2] FIG. 2 is an end view showing the components of the louver material of FIG. 1 in an expanded form. [Diagram 3] 2A is an enlarged end view of the tip portion of the louver material in FIG. 1, and FIG. 2B is an enlarged end view of the tip portion when a decorative sheet is attached to the surface of the louver material. [Figure 4] FIG. 11 is an end view showing the configuration of a louver material according to another embodiment of the present invention. [Diagram 5] FIG. 5 is an end view of a louver tip member of the louver material of FIG. [Figure 6] (A) to (E) are enlarged views of the side end portions of the cover surface of the louver tip member, where (A) is the louver tip member shown in Figures 1 to 3, (B) is the louver tip member shown in Figures 4 and 5, and (C) to (E) are louver tip members of other embodiments. [Figure 7] 4(A) to 4(C) are diagrams illustrating a manner in which the louver tip member is fixed to the louver body member with a set screw in the louver member shown in FIGS. 1 to 3. [Figure 8] 4 is a diagram showing an embodiment in which an end cover plate is attached to the end of the louver material shown in FIGS. 1 to 3. FIG. [Figure 9]FIG. 9 is a diagram showing an embodiment in which an edge cover plate having a different shape from that in FIG. 8 is attached to the end of a louver material. [Figure 10] FIG. 11 is an end view showing the configuration of a louver material according to another embodiment of the present invention. [Figure 11] 13(A) and 13(B) are end views showing a state in which a louver material according to another embodiment of the present invention is attached to a support member. [Figure 12] FIG. 11 is an end view showing the configuration of a louver material according to another embodiment of the present invention. [Figure 13] 13(A) to 13(C) are enlarged end views of the tip portion of still another embodiment of the louver material of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] A preferred embodiment of the present invention will be described with reference to the drawings. The louver material of the present invention is a long material, and its end face is shown in each drawing to explain the configuration. Furthermore, the technical concept of the present invention is not limited to the embodiment described below.

[0027] 1 shows the configuration of a single slope louver installed on a ceiling surface CF using louver material 1 according to one embodiment of the present invention. This single slope louver is constructed by attaching multiple louver materials 1 in parallel at appropriate intervals along the ceiling surface CF, which corresponds to the support member, and a small end cover plate 5 is attached to the end of each louver material 1.

[0028] In detail, as shown in FIG. 2, the louver material 1 is composed of a louver main body member 2 and a louver tip member 3, both of which are formed by aluminum extrusion molding, and is configured to be attached to a ceiling surface CF via a through member 4, which is also formed by aluminum extrusion molding.

[0029] The louver main body member 2 is formed in a box shape with two crosspieces 22, 22 spanning the inner surfaces of the side portions 21, 21, with both the front and rear ends open and with a substantially rectangular hollow portion inside. The inner surfaces of both side portions 21, 21 facing the front opening of the louver main body member 2 are provided with fitted portions 23, 23 with inwardly protruding projections, which are portions into which fitting portions 34 of the louver front end member 3, which will be described later, are fitted, and the inner surfaces of both side portions 21, 21 facing the rear opening are provided with fitted portions 24, 24 with inwardly protruding projections, which are portions into which fitting portions 43 of the through member 4, which will be described later, are fitted. The front and rear end ends 21a, 21a of both side portions 21, 21 are both tapered surfaces inclined inward at approximately 45°. Of the two crosspieces 22, 22, the rear end crosspiece 22 has a bearing portion 25 protruding from the center thereof and having a C-shaped cross section.

[0030] The louver tip member 3 is formed having a cover surface portion 31 having a width sufficient to cover the opening at the tip side of the louver main body member 2, folded portions 33, 33 bent diagonally from both sides of the cover surface portion 31 toward the back side of the cover surface portion, and fitting portions 34, 34 which are folded outwardly from the tips of the folded portions 33, 33 in a key-like shape and protrude toward the rear of the cover surface portion 31, with protrusions protruding from the outer surface of the tip portion that fit into fitting portions 23, 23 provided facing the opening at the tip side of the louver main body member 2. More specifically, the two folded portions 33, 33 are bent from both side ends of the cover surface portion 31 toward the inside of the back surface of the cover surface portion 31 at an inclination angle of about 45°, and the middle portion is folded back at about 90° toward the outside, and is further folded toward the rear of the cover surface portion 31 at a position inside the side ends of the cover surface portion 31 to protrude, and the flat portions 32, 32 are disposed within the surface bent from both side ends of the cover surface portion 31 to the area on the back surface side of the cover surface portion 31. The flat portions 32, 32 are portions where both side edges of a decorative sheet are attached when the surface of the louver tip member 3 is decorated by attaching the decorative sheet, and are formed into a flat surface over an appropriate width (SW), preferably a width of 3 mm or more, from the base of both side ends of the cover surface portion 31 so that both side edges of the decorative sheet are firmly attached (see FIG. 6(A)). Furthermore, a bearing portion 35 having a generally U-shaped cross section is provided in a protruding manner at the center of the rear surface of the cover surface portion 31 .

[0031] The louver main body member 2 and the louver tip member 3 form an integrated louver material 1 by covering the tip opening of the louver main body member 2 with the cover surface portion 31 and attaching the louver tip member 3 to the louver main body member 2 by engaging the engaging portions 34, 34 with the engaging portions 23, 23 of the louver main body member 2. As will be described later, both components are formed so that, when the louver tip member 3 is attached to the louver main body member 2, a gap (G) of appropriate width is secured between the tips of the two side portions 21, 21 of the louver main body member 2 and the folded portions 33, 33 of the louver tip member 2, and so that the inclined tip portions 21a, 21a of the two side portions 21, 21 of the louver main body member 2 and the surfaces inclined toward the back side of the folded portions 33, 33 of the louver tip member 3 are positioned closely adjacent to each other in parallel opposition.

[0032] The through material 4 has a base 41 and side portions 42, 42 bent at right angles on both sides of the base 41, and is formed to have a generally U-shaped cross section. The outer surfaces of the tip ends of the side portions 42, 42 are provided with fitting portions 43, 43 consisting of protrusions that fit into fitting portions 24, 24 provided facing the rear end opening of the louver main body member 2. The through member 4 is attached along the ceiling surface CF by placing a base portion 41 on the ceiling surface CF and screwing a set screw S into the base portion 41.

[0033] As described above, the louver material 1 in this embodiment consists of two components, a louver main body member 2 and a louver tip member 3, and is assembled into an integrated louver material 1 by attaching the louver tip member 3 to the tip opening of the louver main body member 2. This louver material 1 is supported by engaging the engaging portions 24, 24 of the louver main body member 2 with the engaging portions 43, 43 of the through material 4 attached to the ceiling surface CF, thereby forming a louver that decorates the space facing the ceiling surface CF.

[0034] According to this form of louver material 1, by making the surface treatment of the louver tip member 3 different from that of the louver main body member 2 and attaching it integrally to the louver main body member 2, it is possible to construct a louver material 1 having partially different surface decorative aspects such as colors and patterns.By constructing louvers using such louver material 1, it is possible to create a unique decoration for the space in which the louvers are installed.

[0035] Folded portions 33, 33 bent toward the back side of the cover surface portion 31 are provided on both sides of the cover surface portion 31 of the louver tip member 3, and flat portions 32, 32 are provided within the surfaces of the base sides of both folded portions 33, 33. Therefore, when a decorative sheet is attached to the cover surface portion 31 as a surface treatment of the louver tip member 3, both side edges of the decorative sheet can be folded back to the back side of the cover surface portion 31 along the boundary between the cover surface portion 31 and the folded portions 33, 33, and both side edges of the decorative sheet can be overlapped and attached so as to be wrapped around the surface of the flat portions 32, 32, and the decorative sheet can be firmly attached to the surface of the flat portions 32, 32, making it possible to prevent both side edges of the decorative sheet from floating or partially peeling off.

[0036] Furthermore, the flat portions 32, 32 to which the side edges of the decorative sheet are attached are respectively provided in the back surface areas of both side ends of the cover surface portion 31 of the louver tip member 3, so that when the louver tip member 3 is attached to the louver main body member 2, the side edges of the decorative sheet can be positioned inside the louver material 1 and not exposed to the outside (see Figure 3(B)). Since the edge of the decorative sheet attached to the louver tip member 3 is not exposed to the outside of the louver material 1, the boundary portion where the ends of the louver main body member 2 and the louver tip member 3 are connected to each other is neatly arranged, and it is possible to maintain a good appearance of the louver constructed using this.

[0037] Furthermore, in this embodiment, the louver material 1 is formed so that, when the louver tip member 3 is attached to the louver main body member 2, a gap (G) of appropriate width, preferably a gap (G) of 1 mm or less, is secured between the tips of the both side portions 21, 21 of the louver main body member 2 and the folded portions 32, 32 of the louver tip member 2, as shown in Figure 3 (A). Therefore, even when a decorative sheet 6 is attached as a surface treatment to the louver main body member 2 and the louver tip member 3, the tips 21a, 21a of the both side portions 21, 21 of the louver main body member 2 to which the decorative sheets 6, 6 are attached will not come into contact with the surface of the folded portions 33, 33 of the louver tip member 2. As shown in the same figure (B), when the two members are attached together, the engagement between the engaged portions 23, 23 and the engaging portions 34, 34 will not become insufficient. Furthermore, the decorative sheets 6, 6 will not collide with each other and come into contact with each other, causing cuts or tears on the surface. In this embodiment, the inclination of the tip portions 21a, 21a of both side portions 21, 21 of the louver main body member 2 and the inclination of the surface inclined toward the back side of the folded portions 33, 33 of the louver tip member 3 are both at an inclination angle of approximately 45°, but other combinations of inclination angles may also be used, such as one being at an inclination of 30° and the other being at an inclination of 60°.

[0038] Figures 4 and 5 show a louver material 1 that constitutes a single-slope louver that is installed on a ceiling surface CF in the same manner as described above, and show a form of louver material 1 in which the width between the two side surfaces 21, 21 of the louver main body member 2 is narrower than in the above-described form.

[0039] As shown in both figures, in this form of louver material 1, the louver tip member 3 is folded toward the back side of the cover surface portion 31 on both sides thereof, providing folded portions 33, 33 having flat portions 31, 31 within the surface, and a bearing portion 35 is protruding from the back side of the cover surface portion 31. On both sides of this bearing portion 35, there are integrally formed fitting portions 34, 34 which are protrusions that fit into the fitting portions 23, 23 provided on the inner surfaces facing the tip openings of both side portions 21, 21 of the louver main body member 2, so that this louver tip member 3 can be attached to the narrow louver main body member 2.

[0040] FIG. 6 is an enlarged view of one side end portion of the cover surface of the louver tip member that constitutes the louver material of the present invention, where (A) shows the form shown in FIGS. 1 to 3, and (B) shows the form shown in FIGS. 4 and 5. Both forms of louver tip members have folded portions 33, 33 bent from both side ends of the lid surface portion 31 to the back surface side, so that flat portions 32, 32 with a flat surface of an appropriate width (SW), preferably a width of 3 mm or more, are secured within the surface from the base of both side ends of the lid surface portion 31, and when the decorative sheet 6 is attached to the louver tip member, both side edges of the decorative sheet 6 superimposed on the surface of the lid surface portion 31 are folded back to the back surface of the lid surface portion 31, respectively, and attached so as to be wrapped around the flat portions 32, 32, thereby making it difficult for the side edges of the decorative sheet 6 to float or peel off partially. In addition, by providing flat portions 32, 32 to which the side edges of the decorative sheet 6 are bonded in the back surface area of ​​both side ends of the cover surface portion 31 of the louver tip member, the side edges of the decorative sheet 6 attached to the surface of the louver tip member are not exposed to the outside, so that when the louver tip member is attached to the louver main body member, the boundary portion where the ends of both members are connected is neatly fitted out.

[0041] In both of the above forms, flat portions 32, 32 are provided within the surfaces of the folded portions 33, 33 bent from both side ends of the cover surface portion 31 of the louver tip member toward the back surface side, but instead, as shown in Figure 6 (C), flat portions 32, 32 of width SW inclined toward the back surface side may be provided on both side ends of the cover surface portion 31 facing the back surface area of ​​the cover surface portion 31. Alternatively, as shown in the same figures (D) and (E), tapered surface portions 31a inclined toward the back surface of the lid surface portion 31 may be provided on both side ends of the lid surface portion 31, and flat portions 32, 32 of width SW may be provided on the back surface of both side portions of the lid surface portion 31, connected to these tapered surface portions 31a. In either embodiment, when attaching the decorative sheet to the surface of the louver tip member, both side edge portions of the decorative sheet are folded back to the back side of both side ends of the cover surface portion 31 and attached to flat portions 32, 32 provided in the area on the back side of both side ends of the cover surface portion 31, thereby making it difficult for the side edge portions of the decorative sheet to float or peel off partially. In addition, when the louver tip member is attached to the louver main body member, the attached portions of the decorative sheet are not exposed to the outside.

[0042] FIG. 7 shows a state in which the louver tip member 3 attached to the louver main body member 2 in the louver material 1 shown in FIGS. 1 to 3 is fixed with a set screw S. In the same figure (A), the louver tip member 3 is placed over and fitted into the tip opening of the louver main body member 2, and then a set screw S is screwed into the tip side surface of the louver main body member 2 from the outside, and the side portion 21 of the louver main body member 2 and the folded portion 32 of the louver tip member 3 are fastened and fixed together with the set screw S. In the same figure (B), a set screw S is screwed from the rear end opening side of the louver main body member 2 toward the bearing portion 25 of the crosspiece portion 22, and the tip of the set screw S is screwed into the bearing portion 35 of the louver tip member 3, thereby fastening and fixing the louver tip member 3 to the louver main body member 2. In this case, if an end cover plate 5 (see Figures 8 and 9) which is attached and fixed integrally to the end of the louver material 1 (described later) is used, the set screw S which fixes the louver tip member 3 can be hidden from exposure on the surface of the louver material 1, and the end cover plate 5 can also be fixed without using the set screw S. Also, the same figure (C) shows an embodiment in which the louver tip member 3 is fixed together with the end cover plate 5, in which the end cover plate 5 is placed on the end of the louver material 1, and two fastening screws S are screwed into the surface of the end cover plate 5. The end of one of the fastening screws S is screwed into the bearing portion 25 provided on the crosspiece portion 22 of the louver main body member 2, and the end of the other fastening screw S is screwed into the bearing portion 35 provided on the cover surface portion 31 of the louver tip member 3, so that the louver tip member 3 and the end cover plate 5 are fastened together.

[0043] As described above, in addition to fixing the end cover plate 5 by screwing the set screw SW into the louver material 1 from the outside, the end cover plate 5 may be fixed by attaching it integrally to the end of the louver material 1. Also, as shown in Figure 8, connecting pieces 51, 51 that elastically fit into both inner surfaces of the side portions 21, 21 of the louver main body member 2 can be integrally provided on the inner surface of the end cover plate 5, and the connecting pieces 51, 51 can be inserted into the louver material 1 to attach the end cover plate 5 to the end of the louver material 1, so that the end cover plate 5 is fixed by the connecting pieces 51, 51 fitting into the inner surface of the louver material 1. Alternatively, as shown in Figure 9, an insert piece 52 can be integrally provided on the inner surface of the end cover plate 5 together with the connecting piece 51, and the connecting piece 51 can be inserted into the louver material 1 to engage with the inner surface of the louver material 1. With the insert piece 52 overlapping the slat portion 52 of the louver main body member 2, a locking screw S can be screwed from the rear end opening side of the louver main body member 2 toward the insert piece 52, and the tip of the locking screw S can be screwed into the bearing portion 25, thereby fastening and fixing the end cover plate 5 to the louver material 1.

[0044] Figure 10 shows a louver material according to yet another embodiment of the present invention, in which, instead of the support member 4 of the louver material 1 of the above-described form, the louver tip member 3 described above is attached to the rear end opening of the louver main body member 2 so that both the tip and rear ends of the louver material 1 are visible. In this type of louver material 1, the side portions 21 of the louver main body member 2 are supported by a support member (not shown), forming a louver whose front and back are design surfaces for partitions, partitions, etc.

[0045] Figure 11 shows a louver material in yet another embodiment of the present invention, and in Figure 11(A) the rear end side of the louver main body member 2 is closed by a rear surface portion 26, a groove portion 27 is formed in the center of the rear surface portion 26, the bolt head of the fastening screw S is engaged in this groove portion 27, and a nut is screwed onto the shaft portion of the fastening screw S that passes through the support member 7, so that the louver material 1 is supported by the support member 7. In addition, the same figure (B) shows that inwardly protruding pieces 21b, 21b are provided at the rear ends of both side portions 21, 21 of the louver main body member 2, and the bolt head of the locking screw S is engaged between the two folding pieces 21b, 21b and the crosspiece 24 on the rear end side, so that the louver material 1 is supported by the support member 7 in the same manner as described above.

[0046] FIG. 12 shows an example of a specification embodiment of a louver material 1 composed of a louver main body member 2 and a louver tip member 3. The illustrated embodiment is configured such that a lighting device L is installed inside the louver main body member 2 without using a louver tip member 3, and an indoor or outdoor space is illuminated with illumination light emitted from the front end opening of the louver main body member 2. Reference numeral 21c denotes slight irregularities (knurling) formed on the inner tip surface facing the front end opening of the louver main body member 2 to prevent glare from the illumination light.

[0047] FIG. 13 shows yet another embodiment of the louver material 1 of the present invention, and the louver material 1 shown has a different shape of the cover surface portion 31 of the louver tip member 3 from the louver material 1 of each of the previously described embodiments. In detail, Fig. 1A shows the cover surface 31 of the louver tip member 3 having a rectangular cross section, Fig. 1B shows the cover surface 31 having a curved cross section, and Fig. 1C shows the cover surface 31 having a roof-shaped cross section. As described above, the cover surface 31 has bent portions 33, 32 bent toward the rear surface on both sides, and the bent portions 33, 33 have flat portions 32, 32 within their planes, and the ends of the louver main body member 2 and the louver tip member 3 are joined together with their inclined ends facing each other. In addition, the same figure (C) shows that there are no folding portions 33, 33 on both sides of the cover surface portion 31, and when the louver material 1 is constructed, the ends of both side portions 21, 21 of the louver main body member 2 are formed so as to abut against the cover surface portion 31.

[0048] In this way, the louver material 1 is made into a unit consisting of a combination of a louver main body member 2 and multiple louver tip members 3 with different cross-sectional shapes, and one louver tip member 3 selected from the multiple louver tip members 3 is attached to the louver main body member 2 to form the louver material 1. This, combined with the different surface treatments of the louver main body member 2 and the louver tip members 3 mentioned above, makes it possible to expand the louver design at less cost.

[0049] The configurations of the louver material and louvers and the forms of the constituent members described and illustrated above are merely examples, and the present invention is not limited to the configurations and forms described and illustrated, but may have other appropriate configurations and forms. [Explanation of symbols]

[0050] 1 louver material, 2 louver main body member, 21 side portion, 22 crosspiece material, 23, 24 fitting portion, 25 bearing portion, 3 louver tip member, 31 cover surface portion, 32 flat portion, 33 folded portion, 34 fitting portion, 35 bearing portion, 4 through member, 41 base portion, 42 side portion, 43 fitting portion, 5 small end cover plate, 6 decorative sheet, 7 support member, CF ceiling surface, S fastening screw

Claims

1. An architectural louver material comprising a louver body member and a louver tip member attached to the tip of the louver body member, An architectural louver material characterized in that the louver main body member has an opening between the tips of its two side portions, the louver tip member has a cover surface portion that covers the tip opening of the louver main body member, and a flat portion is disposed in the back surface area of ​​each of both side ends of the cover surface portion.

2. 2. The architectural louver material according to claim 1, characterized in that a flat portion is provided on each side of the cover surface within a surface that is curved or inclined toward the back side of the cover surface.

3. The architectural louver material described in claim 1, characterized in that a tapered surface portion is provided on each side end of the cover surface, inclined toward the back surface of the cover surface, and a flat portion is provided on the back surface of both side portions of the cover surface, connected to this tapered surface portion.

4. 4. The architectural louver material according to claim 1, wherein the flat portion has a width of 3 mm or more.

5. An architectural louver material as described in any one of claims 1 to 3, characterized in that when the louver tip member is attached to the louver main body member, a gap is secured between the tips of both side portions of the louver main body member and both side ends of the louver tip member.

6. Architectural louver material as described in claim 5, characterized in that the inclined surfaces at the tips of both side portions of the louver main body member and the surfaces inclined toward the back side of both side ends of the louver tip member are formed to face each other with a gap between them.

7. 4. The architectural louver material according to claim 1, wherein a decorative sheet is attached to the cover surface of the louver tip member and to the flat portions on both sides of the cover surface.

8. The louver body member has fitting portions on the inner surfaces of both side surfaces facing the opening at the tip thereof, 4. The architectural louver material according to claim 1, wherein the louver tip members have fitting portions that fit into fitting portions on the inner surfaces of both side portions of the louver main body member.

9. 4. An architectural louver material according to claim 1, wherein the louver body member has a crosspiece between both inner side surfaces, and the louver tip member has a bearing portion protruding from the rear surface of the cover surface.

10. A louver material unit having a louver body member and a louver tip member attached to a tip of the louver body member, the louver body member has an opening between both side portions at its tip, the louver tip member has a cover surface portion covering the tip opening of the louver body member, and is formed by disposing flat portions in the back surface side areas of both side ends of the cover surface portion, The louver material unit is characterized in that it is composed of a combination of the louver main body member and a plurality of louver tip members having different cross-sectional shapes, and a louver tip member selected from the plurality of louver tip members is attached to the louver main body member to form the louver material.

11. A louver constructed using the architectural louver material according to any one of claims 1 to 3 or the louver material unit according to claim 10.

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