JP2002322791A - Synthetic resin siding - Google Patents

Abstract

[PROBLEMS] To provide a synthetic resin siding material which has a solid feeling, is strong and hard to come off even under a strong wind, and has good mounting workability. SOLUTION: It has a decorative plate portion as a main body, a first mounting portion formed on an upper portion of the decorative plate portion, and a second mounting portion formed on a lower portion of the decorative plate portion. A synthetic resin siding material in which the ratio of the thickness of the decorative plate portion to the thickness is 1.2 / 1 to 3/1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin siding material used as an outer wall material of a building.

[0002]

2. Description of the Related Art In recent years, the exterior wall of a building has been completely changed from a conventional mortar coating or paint coating to a method of attaching a siding material. The conventional coating method has an advantage that the initial cost is small, but since the coated surface is easily damaged, the coating method is 5 to 1%.
Repainting is required every 0 years, resulting in high costs. On the other hand, according to the siding material system, it is considered that the present situation is caused by the fact that the siding material is not only rich in color and three-dimensional design but also excellent in durability.

[0003] Siding materials include those based on ceramic materials, metal materials, and synthetic resins. Ceramic materials, although giving a profound feeling, are too heavy, so that they are usually used as a base material when used for renovation. The wall is not designed for it, so it cannot withstand the load, and in general, there is a problem that the rain is not good because the sealing material applied to the opening such as the window is not durable. . Metallic materials such as aluminum plates and steel plates have the same problem as the ceramic materials with respect to rainfall at the openings, and also have a problem of causing corrosion.

A siding material made of a synthetic resin molded from a vinyl chloride resin or a polyolefin is lightweight, has a high degree of design, has a high designability, and can prevent rainfall at the opening by designing the structure and shape. It is suitable for new construction and especially for renovation. However, the siding material made of synthetic resin lacks a solid feeling because it easily bends when pressed with a hand or the like, and the locking is released by bending when a strong wind of about 50 m / sec is blown into the gap with the base material, It has the problem of falling off or flying.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and is intended to provide a synthetic resin siding material which has a solid feeling, is strong and hard to come off even under strong wind, and has good mounting workability. It was made for the purpose of providing.

[0006]

Means for Solving the Problems As a result of intensive studies, the present inventors have found that the above object can be achieved by changing the thickness ratio depending on the site of the siding material made of synthetic resin. The invention has been completed.

That is, the present invention provides (1) a decorative plate portion as a main body, a first mounting portion formed on an upper portion of the decorative plate portion, and a second mounting portion formed on a lower portion of the decorative plate portion. Wherein the ratio of the thickness of the decorative plate portion to the thickness of the second mounting portion is 1.2 / 1 to 3/1, and (2) the synthetic resin is a vinyl chloride resin. It is intended to provide a siding material described in the above (1) and (3) a building structure in which the synthetic resin siding material described in the above (1) is attached to an outdoor side of a wall surface of a building. .

[0008]

The siding material made of synthetic resin according to the present invention has a decorative plate portion as a main body which is 1.2 to 3 times thicker than the second mounting portion.
Because it has twice the thickness, it has high rigidity, so it does not easily become dented when pressed by hand and has a heavy feeling, and it hardly comes off even under strong winds.

The synthetic resin siding material according to the present invention has the advantage of increased rigidity. On the other hand, preferably, the thickness of the second mounting portion is 0.8 to 1.4 mm.
It is easy to bend flexibly at the time of mounting, and to cover the bulging portion formed on the first mounting portion of the other siding material while locking it to the hidden recess. Also, when it is necessary to replace a partially damaged siding material due to an external impact, etc., the second mounting part is easy to bend. For example, insert a jig utilizing the principle of leverage. Can be easily removed.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The synthetic resin siding material according to the present invention is usually made of polyvinyl chloride, polyolefin, polymethyl methacrylate, styrene polymer, acrylate-styrene-acrylonitrile copolymer (AAS resin), chlorinated resin. Although it is made of a thermoplastic resin such as a polyethylene-acrylonitrile-styrene copolymer (ACS resin), it may be made of a thermosetting resin such as a fiber reinforced plastic (FRP) or an epoxy resin.

The synthetic resin siding material of the present invention may be a single-layer synthetic resin plate or a multi-layer synthetic resin plate. In the case of multiple layers, the same resin material is preferable from the viewpoint of separation and recycling. For example, a two-layer laminated structure by co-extrusion using vinyl chloride resin, the base layer of which is formed using a low-cost resin compound material mainly composed of recycled materials, and the surface layer has excellent weather resistance It is economical to use a virgin resin compound material.

The molding method of the synthetic resin siding material is as follows.
In the case of vinyl chloride resin, a plate-like molded product is obtained by a profile extrusion method or T-die extrusion, and while the plate is still in a softened state, subsequently, a first mounting portion, a decorative plate portion and a second mounting portion having a predetermined shape are formed. The siding material is formed through a sizer that reveals the part. In general, injection molding is used for polyolefin. In the case of FRP, compression molding is preferably used. Thus, a molding method suitable for each type of synthetic resin plate constituting the siding material may be employed. Usually, a squeezed pattern such as wood grain or grain is provided on the surface layer of the decorative board. In addition, a mat processing can be performed.

Although the size of the synthetic resin siding material of the present invention is not particularly limited, usually, in the case of an extruded product, the length is 100 to 400 mm and the width is 1000 to 5000 m.
m, 500-1000 mm long, 5 horizontal
It is preferably about 00 to 1500 mm.

The siding material made of synthetic resin of the present invention has a different thickness depending on the portion. The thickness of the decorative plate portion, which is the main body, is 1.2 to 3 times, preferably 1.5 to 3 times, the thickness of the second mounting portion formed at the lower portion of the decorative plate portion.
It has the characteristic of 2.5 times.

The present invention will be described below with reference to an embodiment shown in the drawings.

FIG. 1 is an exploded perspective view of an essential part showing a method for attaching a synthetic resin siding material according to one embodiment of the present invention.
FIG. 2 is a cross-sectional view of a main part of the synthetic resin siding material of FIG. 1 taken along the line II-II. FIG. 3 is an exploded perspective view of a main part showing a method of attaching the synthetic resin siding material according to another embodiment of the present invention. FIG. 4 is a cross-sectional view of a main part showing a mounting state of the synthetic resin siding material shown in FIG. FIG. 5A is a cross-sectional view of an example of a removal jig for removing a synthetic resin siding material, and FIG. 5B is a plan view thereof.

First Embodiment As shown in FIGS. 1 and 2, a siding material 1 made of synthetic resin according to the embodiment has a decorative plate portion 3 as a main body.
A first mounting portion 2 is formed at an upper portion of the decorative plate portion 3, and a hook-shaped second mounting portion 4 in the present embodiment is formed at a lower portion of the decorative plate portion 3. Such a synthetic resin siding material 1 is formed by integral molding using a synthetic resin.

At a substantially central position of the decorative plate portion 3, a stepped rib 5 is provided substantially parallel to an upper end and a lower end for enhancing rigidity.

The first mounting portion 2 includes a mounting plate portion 21, a bulging portion 23 formed below the mounting plate portion 21, and a downward hidden recess 24 formed below the bulging portion 23.
It is composed of A mounting hole 22 is formed in the mounting plate 21. The mounting holes 22 are holes for driving nails, bolts, etc. when the synthetic resin siding material 1 is mounted, and have a wider width than a vertical width. The reason why the width of the mounting hole 22 is increased is to allow room for displacement when the synthetic resin siding material 1 expands due to solar heat or the like. Thereby, even if the synthetic resin siding material 1 expands due to solar heat or the like, it can be prevented from expanding.

As shown in FIG. 2, the synthetic resin of this embodiment
Thickness t of decorative board 3 in siding material 1
₂Is the thickness t of the second mounting portion 4₃Thicker. Thickness ratio
t₂/ T ₃Is 1.2 / 1 to 3/1, preferably 1.
5/1 to 2.5 / 1. t₂/ T₃Is too small
And the siding material lacks heavy weight, and it is easy to fly in strong winds
Conversely, if it is too large, the decorative plate
Stiffness may be excessively high, which may be uneconomical
is there.

[0021] The thickness _{t 3} of the thickness _{t 1} and the second mounting portion of the first mounting portion, preferably both equivalent to the conventional siding material 0.8 1.4 mm, more preferably 0.9 to 1. 2 mm. If t ₁ and t ₃ are too thin, the siding material may easily come off due to strong wind or the like. Conversely, if t ₁ and t ₃ are too thick, the mounting operation may be difficult.

By attaching the synthetic resin siding material of the present invention to the outdoor side of the wall of a building, a good building structure can be formed. As shown in FIG. 1, as a procedure for stretching the synthetic resin siding material 1 around a base material 6 such as an outer wall of a building, first, a vertical trunk (vertical bar) 7 is placed on the base material 6 at a distance of 400 to 450 mm. And install in parallel with the vertical direction. Next, the second attaching portion 4 of the first-stage synthetic resin siding material 1 is hooked on a downward hook member (not shown) attached to the lowermost portion of each vertical trunk edge in parallel with the ground. The center of the mounting hole 22 in the first mounting portion 2 of the siding material is fixed with a nail 8 or a bolt. At this time, the nail or the like is not driven into the end but is stopped halfway and fixed loosely, so that the siding material has a play to be shifted due to thermal expansion or the like.

Next, the second mounting portion 4 of the second-stage synthetic resin siding material 1 is covered with the bulging portion 23 of the fixed first-stage synthetic resin siding material 1 so as to cover the lower portion thereof. The mounting hole 22 is hooked on the hidden recess 24 and is provided in the first mounting portion 2 of the second-stage synthetic resin siding material 1.
Driving the nail 8 into the box and loosely fixing it. Hereafter, 3
At the fourth, fourth,..., Nth stages, a synthetic resin siding material is attached.

The synthetic resin siding material 1 according to the first embodiment, strong rigidity since t ₂ is thick, not recessed easily pressed by hand, not easily come off even when subjected to strong winds.

Preferably, t ₁ is 0.8 to 1.4.
mm, it is relatively thin and flexible, so it is easy to attach synthetic resin siding. t ₃ is also preferably so 0.8 1.4 mm, easily deflected, while covering the second mounting portion 4 of the other synthetic resin siding material first bulging portion 23 which is formed in the mounting portion 2 of 1 The work of locking in the hidden recess 24 is easy. In addition, a synthetic resin siding material 1 partially damaged by an external impact or the like.
When it is necessary to replace the new jig with a new one, the second attachment part 4 is easily bent. Therefore, the wider spatula part of the removal jig 15 shown in FIG. It can be easily removed by spreading it open.

Second Embodiment As shown in FIGS. 3 and 4, the synthetic resin siding material 1a according to the present embodiment differs from the siding material 1a in that a first mounting portion 2a is formed on the upper part of the decorative plate portion 3. This is the same as the first embodiment, except that a locking claw 25 is formed in the first mounting portion 2a, and the mounting hole 22 (see FIG. 1) is not formed. The locking claw 25 is a member for hanging and holding the suspension hanging recess 10 formed on the hanging member 9 provided on the vertical body edge 7.

That is, the first mounting portion 2a of the synthetic resin siding material 1a of the present embodiment is provided with mounting holes 22.
Since the siding material 1a made of synthetic resin is fixed because it is not formed (see FIG. 1), it is performed by a method not using nails or bolts.

A method of attaching the synthetic resin siding material 1a according to the present embodiment will be described. When attaching the first stage, which is the lowermost stage, the second attachment of the first stage synthetic resin siding material 1a to a downward hook member (not shown) attached parallel to the ground at the lowermost portion of each vertical trunk edge. The hook 4 is hooked, and then the locking claw 25 on the first mounting portion 2a of the synthetic resin siding is inserted into the hanging recess 10 formed on the hanging member 9 formed on the outer surface of the base material. Let it hang.

Next, the second mounting portion 4 of the second-stage synthetic resin siding material 1a is covered with the bulging portion 23 of the fixed first-stage synthetic resin siding material 1a so as to cover the lower side thereof. The hanging claw 25 formed on the first attachment portion 2a of the second-stage synthetic resin siding material 1a is hooked on the hidden recess 24, and the hanging recess 9 formed on the hanging member 9 formed on the base material. Hang it at the place 10. Thereafter, the third, fourth,..., N-th siding materials are similarly attached.

The siding material 1a made of synthetic resin according to the present embodiment having the above-described structure has the same thickness ratio relationship as that of the first embodiment, so that the same operation and effect can be obtained.

The siding material made of synthetic resin of the present invention is not limited to the above-described embodiment. As described above, the decorative plate portion which is the main body, the first mounting portion and the second Various modifications can be made as long as the attachment portion is formed.

[0032] Additives such as pigments, processing aids, heat stabilizers and ultraviolet absorbers are added to the synthetic resin plate constituting the synthetic resin siding material, if necessary.

[0033]

As described above, the synthetic resin siding material according to the present invention does not easily become dented when pressed by hand and does not easily come off even when subjected to strong wind. Further, since the first mounting portion and the second mounting portion are relatively thin and flexible, the mounting operation is easy. In addition, a siding material that has been partially damaged by an external impact or the like can be easily replaced with a new siding material.

Furthermore, the synthetic resin siding material according to the present invention has an air layer on the back surface, and the air layer is in communication with the atmosphere at both ends of the wall surface, so that it has good air permeability and is made of a synthetic resin siding material. It has excellent dryness on the back side.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part showing a method for attaching a synthetic resin siding material according to an embodiment of the present invention.

FIG. 2 is a sectional view of a main part of the synthetic resin siding material taken along the line II-II in FIG.

FIG. 3 is a perspective view of a main part showing a method for attaching a synthetic resin siding material according to another embodiment of the present invention.

FIG. 4 is a cross-sectional view of a main part showing a state where the synthetic resin siding material shown in FIG. 3 is attached.

FIGS. 5A and 5B are a cross-sectional view and a plan view of an example of a jig for removing a synthetic resin siding material of the present invention.

[Explanation of symbols]

 1, 1a ... Synthetic resin siding material 2, 2a ... First mounting part 21 ... Mounting plate part 22 ... Mounting hole 23 ... Swelling part 24 ... Hidden recess 25 ... Locking claw 3 ... Decorative plate part 4 ... Second Mounting part 5 Rib 6 Base material 7 Vertical waist 8 Nail 9 Hanging member 10 Hanging recess

Continued on front page F-term (reference) 2E110 AA47 AB04 AB22 BA12 BD02 BD23 DA03 DB14 DB25 DC02 GA33W GB42W

Claims (3)

[Claims] 1. A decorative board part which is a main body, a first mounting part formed on an upper part of the decorative board part, and a second mounting part formed on a lower part of the decorative board part, (2) A synthetic resin siding material in which the thickness ratio of the decorative plate portion to the thickness of the mounting portion is 1.2 / 1 to 3/1. 2. The siding material according to claim 1, wherein the synthetic resin is a vinyl chloride resin. 3. A building structure having the synthetic resin siding material according to claim 1 attached to an outdoor side of a wall surface of the building.