JPS63284353A - Eave trough apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a rain gutter device with excellent cold resistance.

(Prior art) Traditionally, tubular rain gutters such as downpipes and elbows have been made of materials such as polyvinyl chloride resin, aluminum, copper, iron, etc., but these rain gutters have not been used in cold regions. Then, in the winter, the rainwater flowing through the rain gutters froze and expanded, causing the rain gutters to become damaged. Therefore, although it is desirable to install rain gutters outside the house from the viewpoint of the durability of the house, in cold regions, it has become common to not install rain gutters outside the house.

As a rain gutter that solves this problem, for example,
As described in Japanese Utility Model Publication No. 4-9614 and Japanese Utility Model Publication No. 57-110232, etc., there are those in which a heater is attached along the outer circumferential surface of the gutter body, and those in Japanese Utility Model Publication No. 54-44
As described in Japanese Patent No. 819, etc., a rain gutter in which a heater is inserted into the main body is known.

In addition, as described in Japanese Patent Application Laid-Open No. 62-17258, etc., there is a known structure in which a cylindrical elastic foam body is installed along the inner circumferential surface of the rain gutter body.

(Problems to be Solved by the Invention) However, conventional rain gutters that use such heaters have a complicated structure because it requires some ingenuity to efficiently install the heater, and Electricity costs increase, which increases costs, and furthermore, in the event of a power outage, the anti-freeze function of the heater cannot be obtained, leading to damage to the rain gutters due to freezing.There are also concerns about the need for reliable ON/OFF control. There was a problem in that a device was required.

In addition, in conventional rain gutters that use cylindrical elastic foam, when the elastic foam is installed along the inner circumferential surface of the rain gutter, it may get caught on the inner circumferential surface of the rain gutter. It was easy, time-consuming, and troublesome.

In addition, when installing elastic foam along the inner circumferential surface of a rain gutter, it tends to get caught on the inner circumferential surface of the rain gutter, which is time-consuming, and parts such as joints must be molded into a special shape. However, there was a problem in that the cost was high.

Furthermore, when applied to curved rain gutters such as gutter elbows, the elastic foam must be molded into a curved shape that corresponds to the inner surface shape of the rain gutter body, which is difficult. There was a problem.

(Means for Solving the Problems) The present invention has been made for the purpose of solving the above-mentioned intermediate illumination point. A tubular rain gutter body connected to the drain outlet of the container, an elastic foam inserted into the inside of the rain gutter body,
The upper end of the elastic foam is fixed near the drain port of the water collector.

(Function) Therefore, in the rain gutter device of the present invention, since the string-like elastic foam is inserted inside the rain gutter body, the rainwater flowing inside the rain gutter body freezes and expands in volume. The elastic foam contracts and absorbs the expanded volume.

Furthermore, since the elastic foam is string-like, it can be easily manufactured and can be smoothly inserted into the rain gutter body by hanging it from above without getting caught in the rain gutter body.

Furthermore, once installed, this rain gutter device does not require fuel such as electric heating, so it is inexpensive.

(Example) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

First, the configuration of the first embodiment shown in FIGS. 1 and 2 will be explained.

As shown in FIG. 1, the rain gutter device A of this embodiment includes a rain gutter main body 1O configured by connecting a gutter elbow 11, a gutter 12, and a vertical gutter 13, and the rain gutter main body 10. It includes a string-like elastic foam body 20 that is inserted inside.

The rain gutter main body 10 includes a gutter elbow 11, a gutter 12, and a vertical gutter 1.
3 is formed into a tubular shape of, for example, hard vinyl chloride resin, aluminum, copper, iron, etc., and a gutter elbow 11 placed at the upper end position of these is connected to the gutter elbow 11 whose upper end socket is a spout 111. It is connected to the drain port 31 of the water dispenser 30. The receiver opening 111 of the gutter elbow 11 and the drain port 31 of the water collector 30 are provided with hook holes 112 and 311 at two opposing positions passing through them.

The elastic foam 20 is composed of a cylindrical foam layer 21 and a waterproof layer 22 provided on its outer surface, and is disposed inside the rain gutter body 10 over almost its entire length in the axial direction. has been done.

Further, this foam layer 21 is made of polyethylene, polypropylene, polystyrene, or polyvinyl chloride.

It is made of synthetic resin material such as polyurethane or rubber and is molded by extrusion foam molding to a diameter of approximately 25 mm. Furthermore, regarding the cell structure of the foam layer 21, closed cells have better heat retention properties than open cells, and
This is preferable because rainwater will not penetrate into the foam layer 21 even if the waterproof layer 22 is damaged.

It should be noted that the structure in which the elastic foam is inserted into the inside of the pipe is known to have been applied to water pipes as described in Japanese Utility Model Publication No. 46-15563, etc., but it is not applicable to rain gutters. There are currently no known examples of this being applied.

Furthermore, this elastic foam 20 has a wire 40 at its upper end.
The drain port 31 of the water collector 30 and the receiver of the gutter elbow 11 are fixed to the connection part with the spout 111 via the hanging rod 50, and the lower end thereof similarly connects the wire 40 and the hanging rod 50. It is fixed to the lower end of the downpipe 13 via the pipe.

The wire 40 is made of elastic foam 20, as shown in FIG.
on both sides of this elastic foam 20,
Ring-shaped hook portions 41, 41 are exposed.

The hooking part 50 is made of a flexible material, and is made of an elastic foam body 20 inserted into the rain gutter main body 10.
It is installed through the FIG. 2 shows the fixing structure of the upper end of the elastic foam 20, and the hooking part 50 is connected to a hooking hole opened at the receiving port 111 of the gutter elbow 11 and the drain port 31 of the water collector 30. 112 and 311. After the latching portion 50 is inserted into the latching holes 112, 311, both ends thereof are bent into an L shape to prevent the latching portion 50 from falling off from the latching holes 112, 311.

Note that the fixing structure of the lower end of the elastic foam 20 is the hooking part 50.
is provided through the hooking hole 131 of the downspout 13, and the other parts are the same as the upper end fixing structure shown in FIG. 2, so drawings and explanations will be omitted. Incidentally, the elastic foam 20 repeatedly expands and contracts due to freezing and thawing of rainwater, and gradually moves in the axial direction, causing positional deviation. By fixing the parts, such displacement of the elastic foam 20 can be prevented.

Further, the wire 40 is hooked to the hook portion 50 at hook portions 41 and 41, and the wire 40 disperses and supports the load of the elastic foam 20 with respect to the hook portion 50. It will be done. In other words, it is possible to prevent the elastic foam 20 from cracking due to its own load partially elongating only the portion through which the hooking portion 50 penetrates.

Next, the operation of the first embodiment will be explained.

First, the construction procedure for the rain gutter device A of this embodiment will be explained.

First, the elastic foam 20 is attached to the gutter elbow 11. The gutter 12, gutter elbow 11 (not shown), and vertical gutter 13 are inserted in this order from one end. Note that this elastic foam 20 is attached to each gutter component 11, 1.
2.13, since the elastic foam 20 has a thin string-like shape and is easily deformable, it can be inserted into the inside of the gutter body 10 by simply dropping it from above into each gutter component. It can be done smoothly without getting caught on the surrounding surface. Furthermore, while inserting the elastic foam 20, each component is successively connected to each other.

After inserting the elastic foam 20 into all the parts constituting the rain gutter body 10, the gutter elbow 11 is inserted into the catch port 111 of the water collector 3.
Then, the upper end of the elastic foam 20 is connected to the drain port 31 of the gutter elbow 11 by the hooking part 50.
and is fixed to the connecting part of the drain port 31 of the water collector 30.

After the entire gutter main body 10 is connected, the angle is adjusted, etc., the lower end of the elastic foam 20 is finally fixed to the vertical gutter 13 to complete the construction.

Next, when using the rain gutter device A of the present invention, even if rainwater flowing inside the rain gutter body 10 freezes and expands in volume, the expanded volume is not inserted into the rain gutter body 10. Since the elastic foam 20 that covers the rain gutter contracts and absorbs the water, freezing damage to the rain gutter body 10 is prevented. That is, the rain gutter can be used in cold regions.

Note that when water freezes and becomes ice, it expands in volume by about 9%, so it is preferable to use a material for the elastic foam 20 that has a volumetric shrinkage rate of 10% or more upon compression.

In addition, this rain gutter device A does not require any fuel such as electric heating after it is installed, so it is low in cost.

Next, a second embodiment shown in FIGS. 3 and 4 will be described.

In describing the second embodiment, the same components as those in the first embodiment are given the same reference numerals, and the explanation thereof will be omitted. Further, regarding the operations, explanations of operations similar to those of the first embodiment will be omitted.

In this embodiment, as shown in FIG. 3, the upper end of the elastic foam 20 is sandwiched and supported by a retaining ring 60 that can be engaged with the stepped portion 32 inside the water collector 30. This is an example.

Therefore, as shown in FIG. 4, if a retaining ring 60 is attached to one end of the elastic foam 20 in advance, the elastic foam 20
The elastic foam 20 can be easily inserted into the inside of the rain gutter body 10 by simply dropping the elastic foam 20 into the rain gutter body 10 from the other end and placing the retaining ring 60 on the stepped portion 32 of the water collector 30. can be installed.

Although the embodiments of the present invention have been described above in detail with reference to the drawings, the specific configuration is not limited to these embodiments, and even if there are design changes within the scope of the gist of the present invention, they are included in the present invention. It will be done.

For example, in the embodiment, the rain gutter main body is composed of a gutter elbow, a gutter, and a vertical gutter, but the present invention is not limited to this, and may be composed of only a vertical gutter, for example.

Furthermore, the fixing structure of the elastic foam is not limited to the embodiments,
The lower end of the elastic foam does not need to be fixed to the gutter body;
It may be left in a free state.

Furthermore, in the examples, a waterproof layer was formed on the elastic foam, but
With a closed cell structure, heat retention and rainwater permeation prevention function can be ensured without forming a waterproof layer. Further, the cross-sectional shape of the elastic foam is not limited to a circular shape, but may be, for example, a rectangular shape.

(Effects of the Invention) As explained above, in the rain gutter device of the present invention, even if the rainwater flowing inside the rain gutter body freezes and expands in volume, the elastic foam can absorb the expanded volume. Because it contracts and absorbs water, it can prevent the rain gutter body from freezing and damage, making it possible to use it in cold regions.

Moreover, the elastic foam can be smoothly inserted into the gutter main body, and the cost is low.

[Brief Description of the Drawings] Fig. 1 is a perspective view showing a rain gutter device according to the first embodiment of the present invention, Fig. 2 is a sectional view of essential parts of the first embodiment, and Fig. 3 is a second embodiment of the present invention. FIG. 4 is a perspective view showing the main parts of the elastic foam, and FIG. 4 is a sectional view showing the main parts of the rain gutter device of the second embodiment. A... Rain gutter device 10... Rain gutter body 20... Elastic foam 30... Water collector 31... Drain port patent application Sekisui Chemical Co., Ltd. Representative Hiroshi 1) Kaoru Figure 3

Claims (1)

[Claims] 1) Consisting of a tubular rain gutter main body whose upper end is connected to the drain outlet of the water collector, and a string-shaped elastic foam inserted into the rain gutter main body, the upper end of the elastic foam A rain gutter device, characterized in that a part is fixed near a drainage outlet of the water collector.