JP3159848B2 - Eave gutter expansion joint - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an eaves gutter expansion joint having a function of absorbing expansion and contraction of an eaves gutter accompanying a change in temperature.

[0002]

2. Description of the Related Art Eaves gutters, particularly eaves gutters made of synthetic resin such as hard vinyl chloride resin, have a large coefficient of thermal expansion.
Due to expansion and contraction due to changes in temperature, adverse effects such as deformation and breakage have been forced. Therefore, a large number of expansion joints having a function of absorbing expansion and contraction of eaves gutter accompanying a change in temperature have been invented and used.

[0003] A typical eaves gutter expansion joint includes a joint body and a slider fitted inside the joint body via a seal material. The joint body includes a slider fitting portion having a seal material fixed to an inner surface thereof, and an eave gutter fitting portion formed at one end of the slider fitting portion and capable of fitting an end of the eave gutter. A slider that is slid along the sealing material, an eave gutter fitting portion formed at one end of the sealed portion and capable of fitting an end of the eave gutter, And a stopper wall formed at the other end and sliding between the eave gutter fitting portion of the joint body and the seal material along the slider fitting portion. 19141, Japanese Utility Model Publication No. 4-19142).

[0004]

However, such a conventional eaves gutter expansion joint has the following problems.

That is, on the inner surface of the slider fitting portion of the joint main body, rainwater or mud that has entered between the stopper wall of the slider and the seal member reduces the distance between the stopper wall and the seal member. When sliding along the slider fitting part of the main body, there is a drawback that it gets over the seal material, reaches the inner surface of the slider fitting part of the joint main body, and is discharged outside therefrom.

Accordingly, the present invention has been made in view of the above-mentioned problems in the conventional eaves gutter expansion joint, and an object of the present invention is to provide a slider fitting in the inner surface of the joint body of the joint body. It is an object of the present invention to provide an eaves gutter expansion joint in which rainwater or mud invading between the stopper wall and the seal member is not discharged from the inner surface of the slider fitting portion to the outside.

[0007]

In order to achieve the above object, in an eaves gutter expansion joint according to the present invention, the joint main body is slidably fitted to the inside of the joint main body via a seal material. A slider fitting part, comprising a slider, and a joint body, the seal material being fixed to the inner surface, and an eave gutter fitting formed at one end of the slider fitting part and capable of fitting an end of the eave gutter. And a slider, the slider being slid along the sealing material, and an eave gutter fitting portion formed at one end of the sealed portion and capable of fitting the end of the eave gutter. ,
A gutter expansion joint formed at the other end of the sealed portion and formed of a stopper wall that slides along the slider fitting portion between the eaves fitting portion of the joint body and the sealing material. A concave portion is provided on the inner surface of the slider fitting portion of the joint body on the other end side of the fixing portion of the sealing material.

In the present invention, the material of the joint body and the slider is not particularly limited. For example, in addition to a synthetic resin such as hard vinyl chloride resin, polyethylene, polypropylene and polycarbonate, a material such as polyphenylene sulfide is used. Engineering plastics, or metals such as iron, stainless steel, copper, and aluminum may be used alone, or a hard vinyl chloride resin coating layer may be provided on both sides of a metal core such as iron. May be used in appropriate combination.

[0009]

In the eaves gutter expansion joint according to the present invention, since the concave portion is provided on the inner surface of the slider fitting portion of the joint main body and on the other end side from the fixing portion of the seal material, the slider fitting of the joint main body is performed. Rainwater or mud that has entered between the stopper wall of the slider and the seal material on the inner surface of the part, even if the slider slides in the direction in which the gap between the seal material and the stopper wall is narrowed and climbs over the seal material, remains in the recessed part. They do not collect and go out of the expansion joint.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing an example of an eaves gutter expansion joint of the present invention,
FIG. 2 is a sectional view of the eaves gutter expansion joint of the present invention shown in FIG. 1, FIG. 3 is a perspective view showing a slider of the eaves gutter expansion joint of the present invention shown in FIG. 1, and FIG. It is a perspective view which shows the joint main body of FIG. The eaves gutter expansion joint according to the present invention shown in FIG. 1 has a joint body 1 made of hard vinyl chloride resin and a slider made of hard vinyl chloride resin which is slidably fitted inside the joint body 1 via a seal material 3. And 2.

The joint body 1 has a slider fitting portion 11 having the sealing material 3 fixed to the inner surface thereof, and an eave gutter formed at one end of the slider fitting portion 11 and capable of fitting an end of the eave gutter. And a fitting portion 12.

The slider fitting portion 11 has a flat bottom wall 11.
1 and the side walls 112 are erected straight on both sides.
An L-shaped ear receiving portion 113 is formed at the upper end of each side wall 112, and a pair of ridges 13 holding the sealing material 3 cross the bottom wall 111 and the side wall 112 on the inner surface. It is integrally molded in the direction of Eave gutter fitting section 12
Is formed in a shape in which side walls 122 are erected on both sides of a flat bottom wall 121, and a U-shaped ear receiving portion 123 is provided at an upper end of each side wall 122.

The slider 2 includes a sealed portion 21 that slides along the sealing material 3 and an eave gutter fitting portion 22 formed at one end of the sealed portion 21 and capable of fitting an end of the eave gutter. A stopper wall 23 formed at the other end of the sealed portion 21 and sliding along the slider fitting portion 11 between the eave gutter fitting portion 12 of the joint body 1 and the sealing material 3. .

The sealed portion 21 is formed in a U-shape, and the eave gutter fitting portion 22 is provided on both sides of the flat bottom wall 221.
The side walls 222 are formed upright, and the U-shaped ear receiving portion 223 is provided at the upper end of each side wall 222. The stopper wall 23 is for preventing the slider 2 from falling off from the joint main body 1 and is formed in a shape to be engaged with the ridge 13 of the joint main body 1.

The sealing member 3 is made of an elastic material such as rubber. Also, three protrusions 31 are juxtaposed on the surface of the waterproof material, and when the slider 2 is fitted inside the joint body 1, the slider 2 is elastically deformed. Is tightly contacted with the outer surface of the sealed portion 21, and water is shut off therebetween. The sealing material 3 may be bonded between the projections 13 of the joint body 1 with an adhesive, or when the joint body 1 is injection-molded.
May be injection molded.

On the inner surface of the slider fitting portion 11 of the joint body 1, a concave portion 114 having a rectangular planar shape is provided on the other end side of the slider fitting portion 11 with respect to the fixing portion of the seal material 3.

Next, the operation of the eaves expansion joint of the present invention shown in FIGS. 1 to 4 will be described. When connecting the eaves gutter by the expansion joint for gutters of the present invention, one eaves gutter (not shown) is fitted and bonded inside the eaves gutter fitting portion 12 of the joint body 1 and the eaves gutter of the slider 2 is attached. The other eaves gutter (not shown) is fitted and bonded inside the fitting portion 22. When the eaves gutter adhered to the joint body 1 and the eaves gutter adhered to the slider 2 expand and contract, the slider 2 slides inside the slider fitting portion 11 of the joint body 1 to absorb the expansion and contraction.

The rainwater or mud that has entered between the stopper wall 23 of the slider 2 and the sealing material 3 is not affected by the rainwater or mud even if the slider 2 slides in the direction in which the distance between the sealing material 3 and the stopper wall 23 is reduced. Since the recessed portion 114 is provided even when the slider gets over the seal member 3 and reaches the slider fitting portion 11 of the joint body 1, rainwater and mud accumulate in the recessed portion 114 and are not discharged to the outside. .

Although the embodiment of the present invention has been described with reference to the drawings, the specific configuration of the present invention is not limited to the illustrated embodiment, and a design change or the like may be made without departing from the gist of the present invention. Even if present, it is included in the present invention. For example, the concave portion may be provided over the entire width of the bottom wall 111 of the slider fitting portion 11, and in the illustrated embodiment, the lower surface of the bottom wall of the concave portion 114 is other than the slider fitting portion 11. The lower surface of the bottom wall 111 of the portion of the slider fitting portion 11 is flush with the lower surface of the bottom wall 111, but the bottom wall of the recess
The volume of 14 may be increased.

[0020]

According to the eaves gutter expansion joint of the present invention, since the concave portion is provided on the inner surface of the slider fitting portion of the joint main body and on the other end side from the fixing portion of the seal material, the slider of the joint main body is provided. Rainwater or mud that has entered between the stopper wall of the slider and the sealing material on the inner surface of the fitting portion is depressed even if the slider slides in a direction in which the distance between the sealing material and the stopper wall is reduced, so that the slider rides over the sealing material. It does not accumulate inside the part and go out of the expansion joint.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of an eaves gutter expansion joint of the present invention.

FIG. 2 is a sectional view of the eaves gutter expansion joint of the present invention shown in FIG.

FIG. 3 is a perspective view showing a slider of the eaves expansion joint of the present invention shown in FIG. 1;

FIG. 4 is a perspective view showing a joint main body of the eaves gutter expansion joint shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Joint main body 11 Slider fitting part 111 Bottom wall 112 Side wall 113 Ear receiving part 114 Depressed part 12 Eave fitting part 2 Slider 21 Sealed part 22 Eave fitting part 221 Bottom wall 222 Side wall 223 Ear receiving part 23 Stopper wall 3 Sealing material

Claims (1)

(57) [Claims] 1. A slider fitting comprising a joint body and a slider slidably fitted inside the joint body via a seal material, wherein the joint body has the seal material fixed to an inner surface. And a gutter gutter fitting portion formed at one end of the slider fitting portion and capable of fitting the end of the gutter gutter, wherein the slider is a sealed portion that slides along the sealing material. An eave gutter fitting portion formed at one end of the sealed portion and capable of fitting the end of the eave gutter; and an eave gutter fitting portion of the joint body formed at the other end of the sealed portion. And a stopper wall that slides along the slider fitting portion between the gutter expansion joint and the inner surface of the slider fitting portion of the joint body and the other end side from the fixed portion of the sealing material. An eaves gutter expansion joint, wherein a concave portion is provided in the eaves gutter.