JPH0354493Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a rain gutter with extremely reduced thermal deformation.

(Prior Art) Rain gutters made of thermoplastic synthetic resin materials have had problems such as detachment from the gutter support and bulging at the ends. For this reason, there have been systems in which a metal core material is interposed between thermoplastic synthetic resin materials in the form of a sandwiched trench, and composite rain gutters using glass fiber or the like.

(Problem that the invention aims to solve) However, in all of these cases, the adhesion between the rain gutter reinforcing material and the main thermoplastic synthetic resin material does not work well, and for example, in the case of a metal core material, it may peel off due to rust. The problem arises. Further, in the case of glass fibers, there is a problem that the fibers are bundled and not uniformly dispersed.

(Means for Solving the Problems) In the present invention, the main body of the rain gutter is formed of a thermoplastic synthetic resin material, and a photocuring resin strip is layered in the longitudinal direction of the inner or outer surface of the main body. is provided.

(Function) A strip layer made of a photocurable resin with a low coefficient of linear expansion is provided in the longitudinal direction of the main body of a rain gutter made of a thermoplastic synthetic resin material. Good adhesion with synthetic resin materials.

(Example) Examples of the rain gutter according to the present invention are shown in FIGS. 1 to 4.

The main body 1 of the rain gutter is made of thermoplastic synthetic resin material. The rain gutter of the present invention will be explained by taking as an example an eaves gutter having a substantially upward U-shaped cross section. The eaves gutter has both side plates 2a, 2b, bottom plate 3, and both side ears 4a, 4b.
are integrally formed from thermoplastic synthetic resin material.

Figure 1 shows both side plates 2 forming the main body 1 of the rain gutter.
FIG. 2 is a perspective view of a rain gutter in which two photocurable resin strip layers 5 are provided facing each other in the longitudinal direction of the inner surfaces of portions a and 2b.

Figure 2 shows the side panels 2 that make up the main body 1 of the rain gutter.
FIG. 2 is a perspective view of a rain gutter in which two photocurable resin strip layers 5 are provided in the longitudinal direction of the outer surfaces of portions a and 2b.

Three protrusions 6a, 6b, 6c are formed at predetermined intervals over the entire length in the longitudinal direction of the inner or outer surfaces of the side plates 2a, 2b, and a light beam is formed between each of these protrusions 6a, 6b, 6c. A strip layer 5 is provided using a curable resin. It is preferable that the protrusions 6a, 6b, 6c be formed integrally when the main body 1 of the rain gutter is extruded. The main body 1 of the rain gutter is formed in advance by extrusion molding, and then the gaps between the protrusions 6a, 6 are formed.
A photocurable resin strip layer 5 is provided between b and 6c. In addition, as shown in FIGS. 3 and 4, several grooves 7 are formed over the entire length of the inner or outer surfaces of the side plates 2a and 2b in the longitudinal direction. A photocurable resin strip layer 5 may be provided within the groove 7.

When providing the photocurable resin strip layer 5..., between each protrusion 6a, 6b, 6c or in the groove groove 7...
There are methods such as pouring an uncured photocurable resin or pasting a soft photocurable resin plate.

As the photocurable resin, for example, a photocurable polyester resin that is cured by sunlight or a sun lamp is used. Above all, photocurable resin has properties such as a low linear expansion rate, fast curing time, good adhesion with other types of synthetic resin materials, and low heat generation temperature during curing so it does not deform the main material. It has

The photocurable resin strip layer 5 may be formed of reinforcing fibers such as glass fibers, aracid fibers, and carbon fibers impregnated with a photocurable resin.

Note that the photocurable resin strip layer 5... is the side plate 2.
In addition to a, 2b, the bottom plate 3 or both ear parts 4a, 4
It may be provided in b. Alternatively, the photocurable resin strip layer 5 may be provided only on the outer surface of the bottom plate 3. Furthermore, the number, width, etc. of the photocurable resin strip layers 5 provided in each part may be appropriately determined depending on the formation of the main body 1 of the rain gutter.

(Effect of the invention) Above all, since the photocurable resin with a low coefficient of linear expansion is integrated with the main body of the rain gutter with good adhesion, a rain gutter that does not deform due to outside temperature etc. can be obtained.

[Brief explanation of drawings]

The drawings show an embodiment of the rain gutter of the present invention, and Fig. 1 is a perspective view of a photocurable resin strip layer provided between the protrusions formed on the inner surfaces of both side panels, and Fig. 2 is a perspective view of the outside of both side panels. A perspective view showing a photocurable resin strip layer provided between the protrusions formed on the side surfaces, and a perspective view showing a photocurable resin strip layer provided in the grooves formed on the inner surfaces of both side plates. FIG. 4 is a perspective view in which a photocurable resin strip layer is provided in each of the concave grooves formed on the outer surfaces of both side plates. 1... Main body of rain gutter, 2a, 2b... Side plate, 3...
...Bottom plate, 4a, 4b...Ear portion, 5...Photocurable resin strip layer, 6a, 6b, 6c...Protrusion, 7...
Concave groove.

Claims (1)

[Scope of utility model registration request] The main body is made of thermoplastic synthetic resin material and is made of rain gutter.
A rain gutter characterized in that a photocurable resin strip layer is provided in the longitudinal direction of the inner or outer surface of the main body.