JPH0420099Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to siding boards (hereinafter simply referred to as boards) useful for forming internal and external walls of architecture and structures, especially horizontal walls. . [Prior Art] Examples of this type of board that have been used in the past include Japanese Patent Publication No. 51-29339 and Utility Model Publication No. 51-29339.
These include No. 11882 and Utsuko No. 54-26649. However, no matter which type of board is used, many of the connecting parts of the board are in direct contact with the base material, so condensation often corrodes the base material, and the structure is subject to vibration and deformation due to earthquakes, etc. Because it was directly transmitted, there was a disadvantage that it was easy to separate. In addition, since the board does not have a backing material, the wall itself lacks heat insulation, fireproofing, and soundproofing properties, and it cannot prevent the decorative surface from deforming. Furthermore, the board itself easily deforms and has the disadvantage of lacking connection strength. Ta. For this reason, boards whose back surfaces are filled with synthetic resin such as polyurethane foam are on the market. However, this type of board has a thickness of 0.27 mm as a surface material.
It is made of 0.3mm colored steel plate, etc., with synthetic resin foam as the core material, and when this board is used horizontally to form a wall, as shown in Figure 6b, the vertical joints β ' must be filled with backup material 25 and caulking material 26. However, the caulking material 26 only adheres to the end face of the surface material (A) in a minute area, and the caulking material 26 in the portion that adheres to the synthetic resin foam used as the core material (A) has insufficient adhesive strength. It makes almost no contribution. As a result, the caulking material 26 only has a slight adhesion to the end surface of the surface material A, and is easily damaged by external force or weather-resistant deterioration, requires skill in the filling process, and has a poor appearance. There were disadvantages such as the need for a beautiful finish and the long time required for construction. Furthermore, since this type of board is produced on a continuous line and cut with a running cutter, the end of the board is deformed on the end face side of the long decorative surface, resulting in a compressed and deformed state near the end (front sag). It was hot. [Purpose of the invention] In order to eliminate the above-mentioned drawbacks, the present invention provides at least one trapezoidal decorative groove on the decorative surface to prevent warping, twisting, and unevenness of the decorative surface, and to make the board In addition to widening the width, the shapes of the joints and decorative grooves formed when boards are connected are made to closely resemble each other, creating a unified line on the wall, creating a three-dimensional feel, and improving the width of the decorative surface in the short direction. The end wall is formed by bending at least one of the side edges inward to prevent deformation of the decorative surface. The finished surface is beautiful, the adhesion of the caulking material is fully demonstrated, and the board can be easily installed by a single worker without the need for skill. We propose a board with significantly improved engagement force and waterproof properties. [Structure of the invention] Representative embodiments of the board according to the invention will be described in detail below with reference to the drawings. That is, FIG. 1 is a perspective view showing the above-mentioned board A. 1 is a surface material, such as a surface-treated steel plate, a steel plate plated with a zinc-nickel alloy, or an aluminum-zinc alloy plated steel plate (product name: Gulfuan, Galvalume). Metal plates (including flat plates and embossed plates) made of one type of metal plate (steel plate, super zinc), aluminum plate, aluminum alloy plate, copper plate, etc., or synthetic resin plates are formed by rolls, presses, or extrusion molding. It is molded as shown in FIG. 2 using one type of molding. To explain further, 2 is a decorative surface on which at least one decorative groove 3 is formed along the longitudinal direction. As shown in FIG. 3a, the shape of this decorative groove 3 is as follows: a side surface 3a that intersects the decorative surface 2 at θ ₁ ; a bottom surface 3b with the tip of the side surface 3a bent at θ ₂ , that is, almost horizontal; The tip is bent at θ ₃ and the vertical cross section is formed into a substantially scalene trapezoid shape from the decorative surface 2 and the inclined surface 3 c that intersects at θ ₄ . In particular, the decorative groove 3 prevents the decorative surface 2 from warping or twisting.
In addition to preventing flattening, the shape closely resembles the appearance of the joint formed when the male connecting part 4 and female connecting part 14 are connected, which will be described later, to improve the design of the wall when Board A is installed. It will improve. Incidentally, in order to prevent rainwater from accumulating in the decorative groove 3, the slope 3c satisfies θ ₄ ≧90°. As shown in FIG. 3b, the male connecting portion 4 includes an inclined piece 5, which is formed by bending one end of the decorative surface 2 at an angle θ ₅ corresponding to the angle θ ₄ of the inclined surface 3c of the decorative groove 3, and its edge. A joint base portion 6 which is bent and extended at θ ₆ , an insertion edge 7 provided at the tip thereof, and an engagement groove 10 with the insertion edge 7 as the upper end,
Extension portion 1 protruding outward from the lower edge 11 of the engagement groove 10
2, and a flap-shaped tongue piece 1 provided at the tip of the extension part 12.
It was formed from 3. To explain further, the inclined piece 5 improves the flow of rainwater, prevents rainwater from accumulating in the side joints, promotes the three-dimensional appearance of the side joints, and is useful for increasing the working width. . Further, the joint base portion 6 serves as a waterproof base for the horizontal joints. Furthermore, the insertion edge 7
On the upper side, a groove 8 parallel to the longitudinal direction of the board A and a reinforcing rib 9 (hollow in the figure) provided at the tip thereof are provided in order to prevent capillary phenomenon and return rain. Although not shown, the core material 21 may be interposed between the upper surface and the lower surface of the insertion edge 7, or the core material 21 may not be interposed as shown. In addition, the tongue piece 13 prevents the edge of the extension part 12 from waving, reinforces the longitudinal strength of the board A, and prevents the tip of the extension part 12 from becoming like a sharp knife during construction. prevent injury,
This is to ensure work safety. Furthermore, tongue piece 1
3 bites into the back surface of the core material 21 of the upper board A when the boards A are connected as shown in FIG. In addition to improving the connecting force at α,
It prevents flow between the inside and outside of the wall, improves sealing performance, and is useful for greatly improving packing and heat insulation properties. Further, as shown in FIG. 3c, the female connecting portion 14 has a side wall 15 which bends the other end of the decorative surface 2 inward at an angle θ ₇ corresponding to the angle θ ₁ of the side surface 3 a of the decorative groove 3 described above. , the lower edge thereof is bent inward to form an upper edge 16, the tip of the upper edge 16 is bent outward to form a lower edge 17, a fitting groove 18 having a substantially U-shaped cross section, and a lower edge. 17 and a tongue piece 19 bent into a seam shape. As shown in FIG. 4, this lower edge 17 is inserted into the engagement groove 10 when the insertion edge 7 is fitted into the engagement groove 18, and is inserted by the tongue piece 13 of the lower board A. It is in close contact with the inner surface of the edge 7 and is useful for greatly strengthening the engagement force and waterproofness of the horizontal joint α. Note that, like the tongue piece 13, the tongue piece 19 prevents the tip of the lower edge 17 from waving, facilitates engagement with the engagement groove 10, and is useful for improving safety during work. It is. Reference numeral 20 denotes an end wall having at least one side end of the decorative surface 2 in the short direction bent inward at a desired angle, for example, about 30 to 150 degrees. This end wall 20 serves as a reinforcement to prevent the decorative surface 2 from warping, twisting, and sagging, and as an adhesion surface for the caulking material 26 at the vertical joint β as shown in FIG. Rain water from the side, heat,
This serves to protect the core material 21, which will be described later, by blocking sunlight from entering. That is, the end wall 20 reduces the usage amount of the caulking material 26 and increases the effective contact area, so that the waterproofing and packing functions of the caulking material 26 can be fully demonstrated, and the caulking material 26 can be easily removed by vibration or the like.
This makes it difficult for peeling to occur. Furthermore, the shape of the end wall 20 is such that the height does not protrude from the back surface of the core material 21, and the insertion edge 7 of the male connecting portion 4 and the engagement groove 1
0. It can be formed into any shape as long as it does not overlap the fitting groove 18 of the female connecting portion 14 . The core material 21 is filled at least on the back surface of the surface material 1 and provides insulation to the board A.
It is made of a type of material that has secondary functions such as adhesiveness and nonflammability. Specifically, it consists of one type of synthetic resin foam, rock wool, glass wool, sheathing board, gypsum board, wood wool cement board, etc., which is discharged as a raw material, molded, hardened, self-adhesive, or a molded body. It consists of seeds. Note that when a molded body is used, an adhesive (not shown) is required between the core material 21, the surface material 1 , and the back material 22. To explain further, the core material 21
Synthetic resin foams are mainly used, such as resins for polyurethane foam, resins for phenol foam, and resins for polyisocyanurate foam, and flame retardants and flame retardant aids (borax, sodium metaborate, antimony trioxide, Calcium carbonate, aluminum hydroxide), bentonite, pearlite grains, and shirasu balloons. Reference numeral 22 is a backing material that covers at least the backside of the core material 21 to make the board A a sandwich structure, which improves the mechanical strength of the board A itself, as well as a noncombustible sheet, a waterproof membrane, a heat shielding sheet, a water absorption sheet, a soundproof sheet, and packing. It is useful as a material such as asbestos paper,
Laminated with one or more of kraft paper, asphalt felt, metal foil (Al, Fe, Pb, Cu), synthetic resin sheet, rubber sheet, cloth sheet, gypsum paper, aluminum hydroxide paper, glass fiber nonwoven fabric, etc. or made of sheets that have been treated with waterproofing or flame retardant treatment. Here, the dimensional relationship of each part will be explained. That is, in the decorative groove 3 (Fig. 3a), the height of the side surface 3a is h ₁ , the height of the inclined surface 3c is h ₂ , the opening width of the decorative groove 3 is W ₁ , the width of the bottom surface 3b is W ₂ , and the male type The height of the inclined piece 5 in the connecting part 4 (Fig. 3b) is _h3 , and the height of the side wall 15 in the female type connecting part 14 (Fig. 3c) is
h ₄ , the joint opening width at the horizontal joint α (Fig. 4).
W ₃ and the joint ground width as W ₄ , h ₁ ≒ h ₄ h ₂ ≒ h ₃ W ₁ ≒ W ₃ W ₂ ≒ W ₄ Also, the angles θ ₁ to _{θ 7} of each part mentioned above, and the horizontal joint α ( The relationship _{between the} angle θ ₈ between _the side wall ₁₅ and _{the joint} basement ₆ in _FIG . Due to the above relationship, the appearance of the decorative groove 3 and the horizontal joint α are almost very similar. [Construction Example] Now, assume that boards A as shown in FIG. 1 are laid horizontally as shown in FIG. 4 to form a wall. In addition, boards A ₁ and A ₂ use a 0.27 mm thick colored steel plate for the surface material 1 , aluminum kraft paper is used for the back material 22, and the core material 21 is composed of the surface material 1 and the back material 2.
2, raw materials for polyisocyanurate foam are discharged, reacted and foamed, and then cured and integrated. Therefore, the extension part 12 of the n-th stage board A ₁ is fixed to the wall base 23 consisting of main pillars, studs, waterproof sheets, etc. (the figure shows the wall base when no waterproof sheet is used) via nails 24. do.
Next, the female connecting part 14 of the n+1st stage board _A2
The fitting groove 18 is fitted into the insertion edge 7 of the male connecting portion 4 of the board A ₁ to form a horizontal joint α as shown in FIG. Further, the vertical joint β is formed by butting the side edges of the board A in the short direction, as shown in FIG. 6a. That is, it is sufficient to insert the backup material 25 into the vertical joint β and then fill the caulking material 26 so as not to protrude from the decorative surface 2. The vertical joint β formed in this way is similar to the vertical joint of the conventional horizontal board (shown in Figure 6b).
Unlike β', since the bonding area between the surface material 1 and the caulking material 26 is large, it has excellent waterproofness, workability, and vibration resistance. In addition, the base part includes a starter (not shown), exit and entry corners, etc. (not shown).
It is necessary to use caulking material and accessories. Further, this board A can also be used vertically. [Example] A color steel plate (plate thickness 0.27 mm) was used as the surface material 1 , and the end wall 20 was formed into a substantially rectangular shape,
For the core material 20, polyisocyanurate foam is discharged as a raw material, reacted, foamed, and hardened to a density of 30.
Kg/m ³ and using aluminum kraft paper as the backing material 22, a board as shown in FIG. 1 was manufactured. On the other hand, as a comparative example, as shown in FIG.
A board having a sandwich structure from the core material B and the back surface material C was used, and the board had no end wall 20 and no decorative groove 3 on the decorative surface 2. The following tests were conducted on both boards. Namely, ○A moist heat and drying test, ○B density variation test of core material 21, ○C waterproofing test of vertical joints β and β', ○workability when filling Niko King material 26, ○E observation of appearance after manufacturing. We measured the defective product rate (in terms of the appearance of the butt end) of ○ and ○, and the deformation during cutting of ○. The results were as shown in the table below. In addition, ○I is 80±5
The height from the horizontal plane at the center of the decorative surface after drying at ℃ for 105 minutes and leaving it for 2 hours at 90% RH (Convex shape is +, concave shape is -), ○B is the density of core material 21 over the entire width One is when it is almost constant over the period of time, and the other is when it fluctuates greatly.The former is 30-33Kg/m ³ and the latter is 20-40Kg/m ³ . Appearance, ○C, vertical joints β, β' of the example and comparative example were formed as shown in Figure 6 a, b, respectively, and water was injected into these vertical joints β, β' at a pressure of 70 kgf. Water leakage to the back side, joint and damage condition, ○D is the filling time for the same length and width, ○H is the overall observation of the board, ○F is the proportion of boards that are defective due to the end surface, ○T is the deformation due to front sagging caused by cutting. [Table] Note that if the height of the decorative surface increases or decreases by 1 mm, the shrinkage or elongation of the back material 22 in the width direction will be 12 mm. This is because the foamed structure of the core material 21 is exposed at the end of the wood, resulting in poor filling and non-uniformity of the foamed structure. [Other Embodiments] What has been described above is only one embodiment of the board A according to the present invention, and it can also be formed as shown in FIGS. 7a-g to 12a-s. That is, FIGS. 7a to 7g show modified examples of the decorative groove 3, and FIG. 7a shows θ ₁
Figure b shows a decorative groove 3 with θ ₁ formed at an obtuse angle, Figure c shows a decorative groove 3 with θ ₄ set at 90°,
In figures d and e, the heights of h ₁ and h ₂ are not equal, and the bottom surface 3b
The decorative grooves 3, f and g, which are formed by slanting the
This is a decorative groove 3 in which a recessed portion 3d is provided between a and a bottom surface 3b. FIGS. 8a to 8q show examples of the male connecting portion 4 , and FIG. 8a shows the male connecting portion 4 in which the upper edge 10a of the engagement groove 10 is formed at an angle θ ₉ with respect to the lower edge 11. , B shows a male connecting part 4 in which the bottom surface 8a of the groove 8 is formed parallel to the upper edge 10a in FIG. , d shows a male connector 4 with a groove 12b provided in the middle of the extension 12, e and f show a male connector 4 with a protrusion 12a and a groove 12b on the extension 12, and g shows a male connector 4 with a groove 12b provided in the middle of the extension 12. A male type connecting part 4 having a protrusion 10b provided in the middle of the upper edge 10a, a male type connecting part 4 having a wavy shape on the upper surface of the insertion edge 7 shown in figure h,
Figures i and j show a male type connecting part 4 with a step in the middle of the extension part 12, figures k and l show a male type connecting part 4 with a tongue piece 13 formed in the shape of an upper flap, and figures m and n show a male type connecting part 4 with a step formed in the middle of the extension part 12. The male connecting part 4 is formed with the base part 6 inclined. Figures o and p show the male connecting part 4 in which the upper edge 10a of the engagement groove 10 is extended to the back of the eye base part 6, and the figure q is an inclined part. θ ₅ of piece 5 is 90°
This is the male type connecting part 4 . Further, FIGS. 9 a to 9 m show examples of the female connecting portion 14 , and FIG. 9 a shows an example of the upper edge 16.
A groove 16a formed parallel to the longitudinal direction or a rib (not shown) is formed in the middle of the female connecting portion 14 to strengthen waterproofing and engagement force.
The female connecting part 14 has a groove 17a similar to that shown in Figure A, the female connecting part 14 is formed to show the innermost part of the fitting groove 18 in Figures C and D, and the side wall is shown in Figures E and F. The corner formed by the lower end of 15 and the upper edge 16 is formed as shown in the figure, and the female-type connecting part 14 is designed to strengthen waterproofness and three-dimensional effect. Figure h shows a female connector 14 that is inclined at an angle θ ₁₀ between the upper edge 16 and the side wall 15, and Figure i shows a female connector formed by bending the tongue piece 19 inward. Figures 14 , j and k show the female connecting part 14 formed by sloping the side wall 15, and figure l shows the tongue piece 1.
9 is formed into an arc shape, and the female type connecting portion 14 whose lower edge protrudes outward from the side wall 15 is shown in FIG.
It is. In addition, in FIGS. 7a to 9g to 9a to m, only the surface material 1 is shown, and the plate thickness is omitted. 10a to 10g are cross-sectional views taken along the Cheech line in FIG.
The surface material 1 whose tip is bent inward, Figure b shows the surface material 1 with an end wall 20 formed only on one edge of the decorative surface 2, Figure C shows the surface material 1 with the end wall 20 inclined outward. , e shows the surface material 1 in which one end wall 20 is formed at right angles and the other is inclined inwardly or outwardly, and f shows the end wall 20 on one side edge, or the ends on both edges (not shown). An end wall 20 is provided with a flange 20a that bends the edge of the face wall 20 briefly outward and functions as a stopper for the caulking material 26, and the end wall 20 shown in FIG.
It is 0. 11a to 11f are examples of the shape of the end wall 20, and FIG. The end wall 20 provided on the piece 5, the joint base 6, the side surface 3a of the decorative groove 3, and the inclined surface 3c; Figure f shows the end wall 20 having the shape shown. Also, Figure 12 a to s are board A
Figures a to f show variations of the vertical cross section of the male connector 4 and the female connector 14, in which caulking material 27, which has the property of expanding under high heat and has adhesive properties, is implanted at the hatched positions of the male connector 4 and the female connector 14. Boards A and g have one end of the backing material 22 protruding from the end surface of the male connector 4 by Δl. Boards A, h, and i have one end of the backing material 22 protruding from the end surface of the male connector 4 by the tongue piece 1.
Boards A, J, and K sandwiched by 3 are shown at one end of the backing material 22, and although not shown, boards A and L are shown at both ends of the backing material 22, with both ends disposed between the core material 21 and the surface material 1 . Board A is not held between the tongues 13 and 19, and Figure m is a board A in which the core material 21 is formed in multiple layers (same and different). and connect the flow groove 28 to 1
Board A, which has been formed for more than 100 years. Figure p shows board A with two or more decorative grooves 3. Figure q shows board A, which is bent at θ ₁₁ at approximately the center of board A, and the entire body is bent in a dogleg shape. Figure s shows a board A in which the core material 21 is disposed up to the back surface of the extension part 12. Although not shown, a board A in which the back material 22 is not attached to the back surface of the core material 21 can also be formed. Of course, Figure 7~
It is also possible to create a board A that is a combination of the components shown in FIG. 12. [Effects of the invention] As mentioned above, according to the board according to the invention,
Since at least one or more decorative groove is formed in the decorative surface part and an end wall is provided on at least one of the side edges of the decorative surface, the decorative surface does not become mountain-like. Since the male and female joints have the above-mentioned drop-in structure, it can be easily installed by one person.
In addition, the width of the horizontal joints can be made constant, and it has excellent waterproofness. Since the decorative grooves and horizontal joints have a very similar appearance, it is possible to create a unified line on the wall, creating a wall with a three-dimensional feel and rich in design. Even if there is uneven distribution of the core material or residual distortion due to molding on the decorative surface, no warping due to unevenness will appear. There is no deformation caused by front sagging when cutting the board. Installation of caulking material at vertical joints becomes extremely easy and reliable. The board has a sanderch structure, which improves its strength. Since the board can be made wide, it is easy to install, and the width of the material can be used effectively, making it highly economical. There are other effects.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the siding board according to the present invention, Fig. 2 is a perspective view illustrating the surface material, Figs. The figure is an explanatory diagram showing a part of the vertical cross section of a wall formed using the above board, Figure 5 is a perspective view showing a comparative example, and Figures 6 a and b are vertical joints according to the present example and the comparative example. Explanatory diagram explaining the construction state, No. 7
Figures a to g, Figures 8 a to q, Figures 9 a to m, and 10
Figures a-g, Figures 11 a-f, and Figures 12 a-
s is an explanatory diagram showing another embodiment. A...Siding board, 3...Fashion groove, 4
...Male type connection part, 14 ...Female type connection part, 20...
End wall, 21... Core material, 22... Back material.

Claims (1)

[Scope of utility model registration request] A decorative surface on the surface of a long plate material, in which at least one decorative groove is provided along the longitudinal direction so that the longitudinal cross-section becomes a scalene trapezoid shape from the side, bottom, and inclined surfaces, and the decorative surface A sloping piece bent at an angle at the upper end, a joint base part where the edge of the slant piece is extended almost horizontally, and a groove part depressed parallel to the longitudinal direction at the tip of the joint base part. A male connecting portion is provided, which includes an insertion edge, an engagement groove with the insertion edge as an upper edge, and an extension portion projecting outward from the lower edge of the engagement groove, and the other end of the decorative surface. A female connecting portion is formed with a fitting groove bent inward to fit with the insertion edge, and a core material filled in the back surface of the surface material and a back surface of the core material covered. In a siding board consisting of a back material with The angle between the inclined piece of the male connecting part and the decorative surface is made almost equal, the shape of the decorative groove and the shape of the joint when the boards are connected are made to closely resemble each other, and in addition, at least the longitudinal direction of the decorative surface is A siding board characterized by having an end wall provided at one end edge.