Exterior louver
The exterior louver system with hollow louver materials and a joint sleeve with a leaf spring pressing piece addresses the challenge of connecting large louvers without displacement, enhancing workability and alignment while accommodating thermal expansion.
Patent Information
- Application Number
- JP2021023884
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-02-18
- Publication Date
- 2025-06-25
- Estimated Expiration
- 2041-02-18
AI Technical Summary
Existing exterior louvers face challenges in constructing large louvers without displacement between connected louver materials.
An exterior louver system comprising louver materials with hollow portions and a joint sleeve with a leaf spring-shaped pressing piece, fixed to one louver material with screws, which presses against the other louver material to ensure alignment and connection.
The system allows for easy and secure connection of louver materials without displacement, improving workability and alignment, while allowing thermal expansion and reducing installation time and costs.
Smart Images

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Abstract
Description
Technical Field
[0001] The present invention relates to an exterior louver installed on the outdoor side of a building.
Background Art
[0002] Conventionally, exterior louvers may be installed to improve the aesthetics of buildings or provide privacy. An exterior louver is configured by attaching long louver materials at intervals. In the case of large exterior louvers, the louver materials may be connected in the longitudinal direction. However, it has not been easy to perform construction while connecting the louver materials so that no displacement occurs between the ends of the louver materials.
Summary of the Invention
Problems to be Solved by the Invention
[0003] In view of the above-described circumstances, an object of the present invention is to provide an exterior louver with good workability.
Means for Solving the Problems
[0004] In order to achieve the above object, an exterior louver according to the invention described in claim 1 includes a louver material and a joint sleeve that connects the louver materials in the longitudinal direction. The louver material has a hollow portion, and the joint sleeve has a pressing piece. , one It is fixed to one side louver material with screws and pressed against the other side louver material by the pressing piece. , press The pressing piece is in the shape of a leaf spring. The portion that contacts the other-side louver material is formed in an R shape. This is the gist of the invention.
Effects of the Invention
[0005] An exterior louver according to the invention described in claim 1 includes a louver material and a joint sleeve that connects the louver materials in the longitudinal direction. The louver material has a hollow portion, and the joint sleeve has a pressing piece. , one It is fixed to one side louver material with screws and pressed against the other side louver material by the pressing piece. , press The pressing piece is in the shape of a leaf spring. The portion that contacts the other-side louver material is formed in an R shape. Therefore, by simply fixing the joint sleeve to one side louver material with screws and inserting the joint sleeve into the hollow part of the other side louver material, the one side louver material and the other side louver material can be connected, and the workability is good.
Brief Description of the Drawings
[0006] [Figure 1] (a) is a side view of the connecting part between the louver materials, (b) is a rear view of the same connecting part, (c) is a cross-sectional view taken along line A - A, and (d) is a cross-sectional view taken along line B - B. [Figure 2] It is a front view showing an embodiment of the exterior louver of the present invention. [Figure 3] It is a side view of the same exterior louver. [Figure 4] It is a cross-sectional view of the same exterior louver. [Figure 5] (a) is a side view of the joint sleeve, (b) is a rear view of the same, and (c) is a plan view of the same. [Figure 6] It is a side view showing the state when connecting the louver materials to each other.
Embodiments for Carrying Out the Invention
[0007] Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIGS. 1 to 4 show an embodiment of the exterior louver of the present invention. This exterior louver is installed on the outdoor side of a building (not shown) such as a building for the purpose of improving the design of the appearance and blocking solar heat. As shown in FIGS. 2 to 4, it includes a plurality of mounting members 8, 8,... fixed to an angle 7 attached to the building frame 6 of the building at intervals in the vertical direction, and a plurality of louver materials 1, 1,... attached to the outdoor side surfaces of the mounting members 8, 8,... at intervals in the horizontal direction in a vertical posture. As shown in FIG. 3, each louver material 1 is formed by connecting a one - side louver material 1a located on the lower side (one side in the longitudinal direction) and an other - side louver material 1b located on the upper side (the other side in the longitudinal direction) with a joint sleeve 2. The mounting member 8 is composed of a channel 9 and an angle 10 attached to the upper surface of the channel 9 with bolts and nuts 11.
[0008] The one-side louver material 1a and the other-side louver material 1b are formed of an aluminum alloy extrusion, and as shown in FIG. 1, they are hollow materials with a substantially rectangular cross-section whose prospective direction is longer than the left-right direction. On the rear side (the other side in the prospective direction), there is provided a mounting bracket storage groove 13 for storing a bracket 12 (see FIGS. 3 and 4) for mounting the louver materials 1a and 1b to the mounting material 8. The mounting bracket storage groove 13 is formed in a substantially C-shaped cross-section with an open rear side. Tapping holes 16 are formed along the longitudinal direction on the rear surface side of the front wall 14 (one side in the prospective direction) of the hollow portion 3 and on the front surface side of the rear wall 15 of the hollow portion 3. As shown in FIG. 3, a lid body 17 is attached to the upper end of the other-side louver material 1b and the lower end of the one-side louver material 1a with screws 18 screwed into the tapping holes 16.
[0009] The joint sleeve 2 is formed of an aluminum alloy extrusion, and as shown in FIGS. 1 and 5, it is a hollow material with a substantially rectangular cross-section whose prospective direction is longer than the left-right direction. A groove 20 for allowing the tapping holes 16 of the louver materials 1a and 1b to pass through is formed in the rear wall 19. The left-right dimension a of the joint sleeve 2 is made about 2 mm smaller than the left-right dimension A inside the hollow portion 3 of the louver materials 1a and 1b. Also, the prospective dimension b of the joint sleeve 2 is made about 1 to 2 mm smaller than the prospective dimension B inside the hollow portion 3 of the louver materials 1a and 1b. Therefore, the joint sleeve 2 can be easily inserted into the hollow portion 3 of the louver materials 1a and 1b. As shown in FIG. 5, the joint sleeve 2 has a hole 21 formed at a position below the rear wall 19 for a screw 5 (described later) to be screwed into. The one-side louver material 1a is provided with a clearance hole 22 for inserting the same screw 5 through the rear wall 15 of the hollow portion 3. Also, the joint sleeve 2 has a pressing piece 4 formed to protrude forward at a position above the front wall 23. The pressing piece 4 is formed by raising the front wall 23, is inclined obliquely so as to protrude forward as it goes downward, and the tip of the pressing piece 4 is bent in an R shape toward the rear side.
[0010] As shown in Fig. 1, the joint sleeve 2 has its lower side inserted into the hollow portion 3 of the one-side louver material 1a, and a screw (tapping screw) 5 inserted through the waste hole 22 of the lower-side louver material 1a from the rear side is screwed into the hole 21 of the joint sleeve 2 and tightened, thereby being attracted and fixed to the rear wall 15 of the hollow portion 3 of the one-side louver material 1a. Also, the upper side of the joint sleeve is inserted into the hollow portion 3 of the other-side louver material 1b, and the pressing piece 4 presses the front wall 14 of the hollow portion 3 of the other-side louver material 1b (strictly speaking, presses the tapping hole 16 formed on the rear surface side of the same wall 14), thereby being pressed against the rear wall 15 of the hollow portion 3 of the other-side louver material 1b. In this way, the joint sleeve 2 is engulfed in the hollow portions 3 of the one-side louver material 1a and the other-side louver material 1b, and both the lower side and the upper side of the joint sleeve 2 abut against the rear wall 15 within the hollow portions 3 of the one-side louver material 1a and the other-side louver material 1b (see Figs. 1(c) and (d)), so that no deviation in the expected direction occurs between the upper end portion of the one-side louver material 1a and the lower end portion of the other-side louver material 1b.
[0011] Next, the construction procedure of this exterior louver will be described. First, mounting members 8, 8,... are attached to the outdoor-side end of the building body 6 at predetermined intervals. Next, the other-side louver material 1b is attached to the mounting members 8, 8. The attachment of the other-side louver material 1b is performed by inserting a fitting 12 that holds the bolt 24 protruding rearward into the mounting fitting storage groove 13 of the other-side louver material 1b from the small opening, sliding the fitting 12 to the front position of the mounting member 8, inserting the bolt 24 into a notch (not shown) formed in the mounting member 8 from above, and screwing and tightening a nut 25 onto the bolt 24 from the rear. Next, insert the lower side of the joint sleeve 2 into the hollow portion 3 at the upper end of the one-side louver material 1a, and use a screw 5 from the rear to attract and fix the joint sleeve 2 to the rear wall 15 of the hollow portion 3. Then, as shown in FIG. 6, insert the upper side of the joint sleeve 2 downward into the hollow portion 3 of the other-side louver material 1b. Then, the pressing piece 4 presses the front wall 14 of the hollow portion 3 of the other-side louver material 1b, so that the joint sleeve 2 is pressed against the rear wall 15 of the hollow portion 3 of the other-side louver material 1b, whereby the upper end portion of the one-side louver material 1a and the lower end portion of the other-side louver material 1b are connected in a state without deviation in the expected direction. After that, fix the one-side louver material 1a to the mounting material 8 in the same manner as the other-side louver material 1b.
[0012] As described above, the present exterior louver includes louver materials 1, 1,... and a joint sleeve 2 that longitudinally connects the louver materials 1a and 1b. The louver materials 1a and 1b have a hollow portion 3, and the joint sleeve 2 has a pressing piece 4. The joint sleeve 2 is fixed to the one-side louver material 1a with a screw 5 and is pressed against the other-side louver material 1b by the pressing piece 4. Therefore, by simply fixing the joint sleeve 2 to the one-side louver material 1a with a screw 5 and inserting the joint sleeve 2 into the hollow portion 3 of the other-side louver material 1b, the one-side louver material 1a and the other-side louver material 1b can be connected, and the workability is good. The joint sleeve 2 has a pressing piece 4 on the other side (upper side) in the longitudinal direction, and is swallowed into the hollow portions 3 of the one-side louver material 1a and the other-side louver material 1b. The pressing piece 4 is pressed against the front wall 14 on one side (front side) in the expected direction of the other-side louver material 1b and is attracted to and fixed to the rear wall 15 on the other side (rear side) in the expected direction of the one-side louver material 1a with a screw 5. Therefore, no deviation occurs in the expected direction between the ends of the one-side louver material 1a and the other-side louver material 1b. Since the pressing piece 4 is formed by raising the wall (front wall) 23 of the joint sleeve 2, the joint sleeve 2 can be manufactured at low cost. Since the tip of the pressing piece 4 is bent toward the other side (rear side) in the prospective direction, when the louver materials 1a and 1b thermally expand and return to their original state, the pressing piece 4 will not get caught on the louver material 1b, so it does not prevent the thermal expansion and contraction of the louver materials 1a and 1b. Also, according to this joint sleeve 2, only one screwing location is required, and only one hole needs to be drilled in the louver material (no hole drilling is required for the other louver material 1b on the other side). Therefore, the time required for attaching and processing the louver materials 1a and 1b can be shortened. This exterior louver can firmly connect the louver materials 1a and 1b to each other by connecting them with the joint sleeve 2. Also, since the louver materials 1a and 1b appear to be continuous, it has good design. Furthermore, the alignment of the louver materials 1a and 1b can be easily performed. This exterior louver is constructed by first attaching the upper other-side louver material 1b, and then fitting and connecting the joint sleeve 2 pre-attached to the upper end of the lower one-side louver material 1a from below to the lower end of the other-side louver material 1b by pushing it up. This makes it easy to install the louver materials 1a and 1b vertically.
[0013] The present invention is not limited to the embodiments described above. The shapes and materials of the louver material and the joint sleeve can be appropriately changed. The exterior louver of the present invention may have the louver material attached in the horizontal direction. The exterior louver of the present invention only needs to have the louver materials connected in the longitudinal direction by the joint sleeve, regardless of its use, installation purpose, etc.
Explanation of Reference Numerals
[0014] 1 Louver material 1a One-side louver material 1b Other-side louver material 2 Joint sleeve 3 Hollow part 4 Pressing piece 5 Screw
Claims
【Claim 1】 An exterior louver comprising a louver material and a joint sleeve that longitudinally connects the louver materials, the louver material having a hollow portion, the joint sleeve having a pressing piece, being fixed to one side louver material with screws, and pressing the other side louver material with the pressing piece, the pressing piece being in the shape of a leaf spring, and the portion contacting the other side louver material being formed in an R shape.
Citation Information
Patent Citations
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