JPS6024828Y2 - siding board - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a siding board useful as an interior/exterior material for architecture, structures, and roofing material.

In particular, it relates to a siding board that has improved heat insulation, workability, and waterproofness in joint areas, strengthened bonding strength, and achieved a flush exterior finish.

Generally, the dry method 1 method is increasingly being used for the exterior walls of houses and factories from the viewpoint of energy saving and ease of construction.

A typical example is metal siding materials.

However, this type of metal siding material has the drawback that many joints are formed when a wall is shaped, and these joints are the weakest points in each of the above-mentioned performances.

In other words, in conventional joints, there is no core material at the joint, the so-called metal plate itself is in direct contact with the rim, or even if there is core material, it is only a small amount, so this part is a thermal bridge. As a result, the insulation properties deteriorate, and since the metal plates come into contact with each other, they lack cushioning and backing properties, and it is not possible to prevent rainwater from entering from the nail-fixed part to the rim, and furthermore, it corrodes these members. There were disadvantages such as

In addition, the male and female joints may come apart and rainwater may easily leak.

Furthermore, in wall bodies using this type of board, the finished surfaces are not flush, creating steps at so-called joints, which extremely impairs the appearance.

In order to eliminate these drawbacks, the present invention has developed the core material of the siding board itself to be made of a synthetic resin foam that is highly insulating and waterproof, and the connecting parts of the siding board to be made of heat-insulating, airtight, and waterproof material. We propose a siding board that has properties such as elasticity, cushioning properties, and vibration resistance, as well as strengthened joint strength at joints.

The siding board according to this invention (
An embodiment (hereinafter simply referred to as a board) will be described in detail.

FIG. 1 is a cross-sectional view showing a typical example of the board, in which 1 is mainly made of a hard base material, such as a thin metal plate, a so-called colored steel plate, a stainless steel plate, a copper plate, an aluminum plate, etc.

The main body 1 includes a rectangular decorative surface 2, side walls 3 and 4 whose edges are vertical or inclined (not shown), a male connecting portion 5 protruding outward on both sides of the side walls, and a female connecting portion 5. It consists of part 6.

To explain in more detail, the male connecting portion 5 has a lower end of the side wall 3 horizontally protruding outward, and a tip portion thereof extending upwardly.
It is composed of a tongue piece 8 which is inclined at an angle of 10 to 30 degrees and whose tip is bent inward to form a lower seam shape.

In addition, the female connecting portion 6 forms an insertion groove 9 by bending the end edge of the side wall 4 inwardly and outwardly around the waist, and extends the lower edge 10 outwardly to form an extension portion 11. form.

In addition, the extension part 11 has a protrusion 1 parallel to the side wall 4 in the middle thereof.
2, and a tongue piece 13 is provided on the end edge.

In addition, the insertion groove 9 extends upward from the innermost part of the upper surface 9a.
= shaped into an inclined surface inclined by 10 to 30 degrees, and the tip portion of the insertion edge 7 including the inclined tongue piece 8 is engaged with this portion,
Moreover, the elasticity of the insertion edge 5 is made to act effectively on the joint portion.

14 is composed of an upper layer 14a and a lower layer (bulging portion) 14b which are made of synthetic resin foam (hereinafter simply referred to as foam) and are separated for convenience.

That is, the upper layer 14a is a form that exists in the recessed part of the back of the main body 1, a part surrounded by the back of the so-called decorative surface 2 and the back of the side walls 3 and 4, and the bulging part 14b inserts the back of the upper layer 14a into the edge 8. , which bulges downward from the back surface of the extension part 11, and is the remaining form portion obtained by cutting out a portion of the bulged form horizontally inward from the lower end of the side wall 3 by a length L4.

Of course, form 14a. 14b may be a single piece or multiple pieces depending on the manufacturing method.

Note that the above part refers to the joint width △S of the wall body after connection with adjacent siding materials near the insertion edge 7 (shown in Fig. 2) and the dimensions of the insertion edge 7 and the extension part 11. bulging part 1 in relation
The end of the insert edge 7 side of the insert edge 7 extends approximately parallel to the back surface of the insert edge 7 by a width of 4b to form a notch 15.

In addition, the above-mentioned form 14 is mainly used under normal usage conditions to: ■ insulation material, @ waterproof and moisture proof material, ○ C sound absorbing material, ■ cushioning material, ■ backing material (between mutual members of the connection part, and second As shown in the figure, a backing is provided around the nails 16 for fixing the siding board to prevent rainwater from entering the rim 17 due to capillary action.

), 6. Anti-vibration, cushioning material, [F] Bulking material, ■ Functions as an adhesive.

The foam 14 that exhibits such functions has high heat insulation properties, waterproof properties, cushioning properties, etc. in a normal state.

Furthermore, some foams 14 turn into carbides, for example, at high temperatures, and when they turn into carbides, they do not generate many cracks, and furthermore, their volume shrinks only slightly.

Of course, when manufacturing the foam, it is desirable to use raw materials that have fluidity and self-adhesiveness and can be molded all at once without being influenced by the shape.

Specific examples of this foam 14 include polyurethane foam, polyisocyanurate foam (including phenol and urethane modified), phenol foam, and mineral fibers (glass fiber, asbestos fiber,
Foams containing carbon fibers, metal fibers, perlite grains, shirasu balloons, vermiculite, glass peas, etc.

The blending ratio of this type of additive varies depending on the purpose, but is, for example, about 5 to 2 parts by weight per 100 parts by weight of the foam raw material.

Reference numeral 18 denotes a sheet-like material (hereinafter simply referred to as a seed) which has relatively strong physical properties and functions to protect the foam 14, strengthen the mechanical strength of the entire board due to the sand inch structure, and function as a mold release agent during foam molding.

Further, the sheet 18 can also be subjected to waterproof treatment and a coating layer (for example, a synthetic resin film, aluminum foil, paint layer).

Furthermore, the siding board according to the present invention particularly has the following dimensional relationship.

That is, the entire height of the board is measured from the surface of the sheet 18 to the top surface of the insertion groove, the top surface of the notch, the back surface of the insertion edge, and the tongue piece 13.
The height from the top surface of the projection 12 to the surface of the lower edge 10 is H, H2, H3, H4, H5, H6, and the height from the surface of the insertion edge 7 to the decorative surface is H7. The height of the side wall 4 is the height of the crosspiece, the height of the tongue piece 8 is H9, and the length is from the innermost part of the insertion groove 9 to the tongue piece 13 and the side wall of the bulge.

, the length from the innermost part to the center of the protrusion 12 is L□, the length from the tongue piece 8 to the side wall of the notch 15 is L2, the length from the tongue piece 8 to the side wall 3 is L1 from the side wall 3 The length of the side wall of the portion 15 is assumed to be L4.

Further, the inclination from the middle of the upper surface of the insertion groove 9 toward the innermost side is θ1, and the inclination upward from the middle of the tongue piece 8 is 02.

And these include H1=H3, H2≦toy, H1≧H
2, H6≦H2+rei, H7=rei, θ□≧θ2 t LO
≧L2. Ll>L4. L4=LOL3- There is a relationship of L3≧job.

These are: (1) to make the decorative surface at the connecting part flush with the other for a beautiful appearance; (2) to strengthen the bonding force at the connecting part;
■This is to strengthen the insulation and airtightness of the joint.

In particular, this is because the coupling force between the insertion groove and the insertion edge is greatly strengthened by the elasticity and mechanical structure.

Next, a method for installing a siding board according to the present invention will be explained.

In FIG. 2, first, the siding board α is fixed on the trunk rim 17 with the end of the abutment waist extension 11 interposed through the nails 16 as shown in the figure.

Next, the insertion edge 7 of the siding board β is inserted into the insertion groove 9 of the siding board α.

To form the outer wall, these operations may be repeated in sequence.

Therefore, when we measured the performance of the outer wall formed in this way, we found that the waterproofness was sufficient, and that unlike before, water leakage from the nail holes to the rim 17 due to capillary action did not discolor or corrode the rim 17. There wasn't.

This is because the foam 14 functioned as a backing material.

In addition, the thermal insulation property has a heat transmission coefficient of 0.79kcal/d・h
・It was ℃.

Furthermore, when a waterproof structure test (class 2 wooden base) according to JIS-A-1301 was conducted on a wall made of a board using the foam 14 forming a carbonized layer, T1 = 23.
．． 8°C, T2 = 253°C, and passed the other acceptance criteria.

In addition, He = 7 rIrIn, H4 = 17 mm
. I, = 32TIrIIt, the foam is manufactured by Daiichi Kogyo Seiyaku Co., Ltd. and the trade name is a polyol for polyisocyanurate foam, which is related to the NL-DO2 system, and the polyisocyanurate is manufactured by Nippon Polyurethane Co., Ltd. and uses the trade name MR-IQQ. The liquid ratio was 100:171.

The density was on average 40 kp/-.

Furthermore, when it was dismantled after the fireproof structure test, it was found that the volumetric shrinkage was small and a sufficient carbonized layer had been formed.

The above-mentioned acceptance criteria are mainly (1) back surface temperature of 260
℃ or less, (2) No afterflame for 30 seconds or more after the test, and 5
There should be no flame remaining for more than a minute.

According to the board according to the present invention as described above, the foam itself is highly insulating, and the joints are made to have improved airtightness and insulation, as well as strengthened bonding strength, making it waterproof, condensation resistant, and vibration resistant. It features significantly improved durability, impact resistance, and corrosion resistance.

Furthermore, when installing, even if the surface of the base is slightly uneven, it can be blended into the base so that the finish becomes the same common plane, resulting in a beautiful finish.

It also has the secondary feature of mitigating the impact and preventing the boards from coming off when the building structure vibrates due to an earthquake.

Furthermore, when fixing the board, water leakage from the nail holes drilled into the substrate can be prevented due to the thickness of the foam 14.
It has the advantage of not causing discoloration or corrosion of the rim etc.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a siding board according to the present invention, and FIG. 2 is an explanatory diagram showing a state in which the siding board is installed. 1... Main body, 2... Cosmetic surface, 5...
...Male type connection part, 6...Female type connection part, 14.
...Synthetic resin foam, 18... Sheet-like material.

Claims (1)

[Claims for Utility Model Registration] A main body having a concave cross section with a rectangular decorative surface, a male connecting part having one end of the main body having an insertion edge projecting horizontally outward, and the other end facing inside. an insertion groove that is bent toward the outside and protrudes outward again to give it a shape; a female connecting portion that extends the lower edge of the insertion groove to the outside to create an extension; a back surface of the main body; In a siding board consisting of a synthetic resin foam filled in a portion including the lower surface of the extension and a sheet material covering the back surface of the foam, the tip of the insertion edge is inclined upward at an angle of 10 to 30 degrees. At the same time, the tongue piece at the tip is bent into a lower spiral shape, and the innermost part of the upper edge of the insertion groove is moved upward by 10 to 30 degrees so as to correspond to the inclined surface of the insertion edge.
Formed on a 0° slope - Also measures the length from the tip of the extension to the deepest part of the insertion groove. , the length of the insertion edge is 1, and the length of the cutout from the side edge of the insertion edge to the longitudinal side of the synthetic resin foam that bulges downward from the insertion edge is 1. ,L,=L
A siding board characterized by being o-L3.