JPH0324743Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a new synthetic resin hollow eave gutter whose reinforcing layer is a paper base material impregnated with a thermosetting resin or the like.

(Prior Art) Synthetic resin eaves gutters have recently come into widespread use as eaves gutters for residential buildings. Such synthetic resin eaves gutters are
It has the advantages of being lightweight, inexpensive, easy to mold, and does not rust, so it has become the mainstream for residential eaves gutters instead of conventional metal.
Because it is a synthetic resin, it lacks mechanical strength and also has the drawbacks of being easily deformed by heat. For this reason, synthetic resin molded bodies that are reinforced by having a thin metal plate or the like integrally enclosed within their thickness have come to be used in many cases. The present applicant has filed Utility Application No. 57-91915 (Utility Application No. 59-919-
25) etc., by integrally encapsulating a so-called paper base material such as paper or fiber impregnated with a thermosetting resin or the like as a reinforcing layer within the thickness of a synthetic resin molded body, the above-mentioned synthetic resin eaves gutter with metal reinforcing core can be manufactured. We have proposed rain gutters made of reinforced synthetic resin, which have excellent properties such as strength, lightweight, and low cost, and have no concerns about rusting from the cut ends, and have received favorable reviews from various quarters. Summer.

(Problem that the invention aims to solve) Recently, there has been an idea that eaves gutters installed at the eaves are considered to be part of the construction materials of the building. Now there is a need for something strong enough to withstand someone standing on top of it or a ladder placed against it. However, the above-mentioned synthetic resin eaves gutters cannot meet such required strength, and even if strength is achieved by using a thick metal plate as a reinforcing core, the lightweight characteristic is offset. Therefore, the fact is that a synthetic resin eaves gutter that has the required strength and is also lightweight has not yet been developed.

The present invention has been developed in view of the above, and aims to provide a new hollow eave gutter made of synthetic resin that is lightweight yet satisfies the above-mentioned strength.

(Means for Solving the Problems) The structure of the present invention for achieving the above object will be explained based on the attached example drawings. 2 to 4 are similar views of other embodiments. That is, the gist of the synthetic resin hollow eave gutter of the present invention is that the gutter body 1 has two outer and outer synthetic resin surface layer parts 2, 2;
The reinforcing layer 3 is interposed between the two surface layers 2 and 2 to maintain a distance between the surface layer parts 2 and to reinforce the same, and the reinforcing layer 3 is made of thermosetting resin, thermoplastic resin, synthetic rubber, or resin-modified synthetic resin. A paper base material 30 impregnated with rubber (hereinafter collectively referred to as thermosetting resin, etc.) is formed so that peaks 31 and valleys 32 alternate in the width direction of the gutter body 1. By molding it into a repeating wave pattern and bonding it integrally with the synthetic resin surface layer parts 2, 2 at the tops 311 of the peaks 31 and the bottoms 321 of the valleys 32 of the paper base material 30. It is characterized by being formed.

The paper base material 30 is mainly made of kraft paper, but it is also possible to use other Western paper, Japanese paper, linter paper, and paperboard, as well as glass fiber, carbon fiber, asbestos fiber, and gypsum fiber. It may also be freely combined with inorganic fibers such as polyester fibers, organic fibers such as nylon fibers, etc. In addition, the resins impregnated and supported on the paper base material 30 include phenol resin, melamine resin, epoxy resin, urea resin, unsaturated polyester resin,
Thermosetting resins such as diallyl phthalate resin, vinyl acetate resin, acrylic resin, polyvinyl alcohol, thermoplastic resins such as polyvinyl chloride, butadiene acrylonitrile rubber, chloroprene rubber, methylbutadiene methacrylate rubber, urethane rubber, butadiene/styrene rubber, etc. These synthetic rubbers or resin-modified synthetic rubbers obtained by modifying the above-mentioned resins are used. Such resins are prepared by adding appropriate additives (plasticizers, crosslinking agents, vulcanizing agents, vulcanization accelerators, etc. in the case of synthetic rubber) to solution-type resin liquids, emulsion-type resin liquids, or latexes. When the paper base material 30 is immersed and dried and solidified (heat hardened in the case of a thermosetting resin), the paper base material 30 is impregnated with the resin, etc., and the two are integrated. When the paper base material 30 is immersed in a resin liquid or the like, a plurality of base materials may be immersed at the same time to form a composite body, or a glass fiber chop or net may be interposed between the base materials to solidify them as one body. It is also possible to increase its strength. In addition, resin processing (sizing treatment) is applied to paper fibers during paper making.
The fibers of this paper are mixed with inorganic fibers or organic fibers, and the above-mentioned resin processing is applied to make paper. Furthermore, a resin film or It is also possible to laminate hot melt films of thermoplastic resin and bond them together under heat, allowing the resin to penetrate into the fiber structure of the base material to substantially integrate the base material in an impregnated state.

The paper base material 30 impregnated with a thermosetting resin or the like as described above is formed into a wave shape using a roll forming machine or the like, and this wave form has a sawtooth shape as shown in FIGS. 1 and 4. , literally wave-shaped as shown in Figure 2,
Alternatively, the shape may be arbitrary, such as a so-called folded roof style in which the tops 311 and bottoms 321 of the peaks 31 and troughs 32 are both flat as shown in FIG.
A general term is used to refer to a structure in which peaks 31 and valleys 32 are alternately repeated.

The above-mentioned paper base material 30 formed into a corrugated shape is introduced into a synthetic resin extrusion molding machine along the longitudinal direction of the peaks 31 and troughs 32, and at the same time, hard vinyl chloride is molded so as to surround the base material 30. When a thermoplastic resin such as resin or polycarbonate resin is extruded into a hollow shape and molded into a desired gutter shape, and the resin is solidified, the tops 311 of the peaks 31 of the paper base material 30 are formed.
...and the bottoms 321 of the valleys 32..., the synthetic resin surface layer portions 2, 2 are integrally bonded, and the surface layer portions 2,
A reinforcing layer 3 made of the above-mentioned corrugated paper base material 30 is placed between the two parts.
You can obtain eaves gutters that are integrated with the installation. If an adhesive is applied to the surface of the paper base material 30 during this extrusion molding, the surface layer parts 2, 2, the top part 311... and the bottom part 32
1. The bond with... is made stronger, and
The portions not involved in adhesion contribute to improving the water resistance of the paper base material 30. In the eaves gutter thus obtained, a plurality of hollow portions 33 surrounded by the inner and outer surface layers 2, 2 and the reinforcing layer 3 and communicating in the longitudinal direction are formed adjacent to each other within its thickness. There is. The thickness of the surface layer parts 2, 2 of the eaves gutter is 0.5 to 0.6 mm, and the thickness of the paper base material 30 is 0.2 to 0.3 mm.
The total thickness including the hollow portion 33 where these are combined is suitably 10 to 15 mm.

(Function) In the above-mentioned eaves gutter, the reinforcing layer 3 is made by molding the paper base material 30 impregnated with a thermosetting resin or the like into a wave shape, and the tops 311 of the peaks 31 and the bottoms 321 of the valleys 32 are formed. The reinforcing layer 3
The stiffness of the paper base material 30 is enhanced by the thermosetting resin supported thereon, thereby reinforcing the eaves gutter, and the tops 311 of the corrugated peaks 31 and the troughs 32... The bottom part 321... maintains the distance between the surface parts 2, 2, and the partition wall part 301... between the top part 311... and the bottom part 321... functions like a web of shaped steel (beam effect), and is extremely suitable for eaves gutters. Gives great rigidity. also,
The corrugated characteristics of the reinforcing layer 3 and the hollow portions 33 combine to provide cushioning properties and significantly improve impact resistance. Since the gutter body 1 itself has great strength, it does not require special ears like a normal eaves gutter, and therefore its appearance is extremely simple as shown in the illustration, and it is easy to cut. Certain advantages are also added. Then, the surface layer parts 2, 2 are maintained at a distance by the reinforcing layer 3, so that the substantial thickness thereof is increased,
Although it is lightweight, it has a heavy feel and exhibits an unprecedented degree of innovation. Furthermore, the substance of the reinforcing layer 3 is a paper base material 3 impregnated with a thermosetting resin or the like as described above.
0, there is no concern that rust will develop from the cut end.

(Example) Next, an example will be described.

Figures 1 and 3 show an example of application to a square eave gutter, where the reinforcing layer 3 in the former is made of a paper base material 30 formed into a serrated shape, whereas the reinforcing layer 3 in the latter is made of a ridged part. There is no substantial difference between the two except that the tops 311 of the 31 and the bottoms 321 of the troughs 32 are made of a paper base material 30 shaped like a flat folded roof. In addition, Figure 2 shows reinforcement layer 3 with half-round gutter.
The wavy shape is literally a wavy shape. Further, FIG. 4 shows a square eave gutter with an upward slope, and the wave-like shape of the reinforcing layer 3 is the same as that in FIG. 1. These embodiments differ only in the outer shape of the eaves trough and the corrugated shape of the reinforcing layer 3, but the functions are all as described above, and it is obvious that these embodiments can be combined as appropriate.

In addition, in both the embodiment figures, both ends of the gutter body 1 are sealed without ears, but this is done at the same time during the extrusion molding described above.
The inner and outer surface layers 2, 2 are interconnected and integral with each other at both end portions.

(Effects of the invention) As described above, the eaves gutter of the present invention has two outer and outer synthetic resin surface layers that are reinforced by a corrugated paper base material impregnated with thermosetting resin, etc. The paper base material is made extremely strong by impregnating it with a thermosetting resin, etc., because the layers and the tops of the peaks and the bottoms of the valleys are integrally bonded and maintained at intervals. Combined with the beam effect derived from the wavy shape, it has great rigidity and effectively prevents deformation due to external force or heat. In addition, cushioning properties are imparted by the wave-shaped characteristics of the reinforcing layer and the hollow portions formed within the thickness, and impact resistance strength is also significantly improved. Therefore, if this eaves gutter is installed at the eaves using sturdy metal fittings, there is no fear that it will break even if a person stands on the eaves gutter or a ladder is placed against it, and the above requirement can be fully met. Moreover, since it is thicker than ordinary eaves gutters, it has a heavy feel and offers an unprecedented degree of innovation, but it is extremely lightweight and does not impair the characteristics of synthetic resin eaves gutters in any way. Furthermore, as the gutter body itself is extremely vertical and has shape-retaining properties as mentioned above, it is not necessary to provide ears at both ends as in the past, which simplifies the appearance and Coupled with the fact that the reinforcing layer is made of a paper base material, there is an added advantage that cutting is easy. In addition, since no reinforcing metal core is involved, there is no concern that rust will develop from the cut end, and since it can be obtained by a simple method as described above, it can be supplied at low cost.

The synthetic resin hollow eaves gutter of the present invention, which has many advantages as described above, is extremely valuable.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view showing one embodiment of the eaves gutter of the present invention, and FIGS. 2 to 4 are similar views of other embodiments. Explanation of symbols, 1...Gutter body, 2...Synthetic resin surface layer part, 3...Reinforcement layer, 30...Paper base material, 31
... Mountain part, 311 ... Top part, 32 ... Valley part, 32
1...Bottom.

Claims (1)

[Scope of utility model registration request] The gutter body consists of two outer and outer synthetic resin surface layers, and a reinforcing layer that is interposed between the outer and outer layers, maintains a distance between the outer layers, and reinforces the same, and the reinforcing layer is made of thermosetting resin. , a paper base material impregnated and supported with a thermoplastic resin, synthetic rubber, or resin-modified synthetic rubber is formed into a wave shape in which peaks and valleys alternate in the width direction of the gutter body, and this paper base material A hollow eave gutter made of synthetic resin, characterized in that it is formed by integrally adhering to the surface layer made of synthetic resin at the tops of the peaks and the bottoms of the valleys.