JPH0827970A - Universal drain for rain gutter and construction method thereof - Google Patents

Abstract

PURPOSE:To improve the durability of a rain gutter by providing a flange at the lower part of the upper end opening part of a drain cylindrical body, passing a drain through a drain hole, provided at the bottom part of the rain gutter, to fit the drain. and connecting a drain pipe to the lower part. CONSTITUTION:The outer peripheral surface of the cylindrical body 11 of a rain gutter universal drain 1 made of hard vinyl chloride resin is provided with a male screw 111, and a flange 112 is formed at the lower part of an upper end opening part 113. A dirt avoiding semispherical shell like grating 12 is provided at the upper part of the upper end opening part 113 of the cylindrical body 11. The inner peripheral surface of an outer cylinder 13 is provided with a female screw 131 to be screwed with the male screw 111 of the cylindrical body 11 to form a flange 132. At the time of fitting this drain 1 to a valley gutter 2, the outer cylinder 13 is removed from the cylindrical body 11 and passed through the drain hole 22 of the bottom part 21 of the valley gutter 2, and packing 5 is inserted between the flange 112 of the cylindrical body 11 and the flange 132 of the outer cylinder 13. The bottom part can be thereby protected from the ultraviolet rays by a sand layer accumulated at the bottom part of a rain gutter.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rain gutter free drain and a construction method thereof. In particular, it relates to a rain gutter free drain suitable for a trough and its construction method.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Utility Model Laid-Open No. 59-17552.
As described in Japanese Unexamined Patent Publication No. 7, a rain gutter free drain in which a flange is provided at the upper end opening of a tubular body is known. By the way, in such a conventional rain gutter free drain, since a flange is provided at the upper end opening of the cylindrical body, when the rain gutter free drain is attached to the bottom part of the rain gutter, Most of the rainwater is not stored and is drained from the rain gutter free drain.

[0003]

However, when the rain gutter is made of a steel sheet coated with a vinyl chloride resin film and the conventional free drain for the gutter is used for this rain gutter, almost all the rainwater in the rain gutter is discharged. As a result of being drained, almost no sand or the like is deposited on the bottom of the rain gutter, so the bottom of the rain gutter is exposed,
When used for a long period of time, it receives sunlight and is exposed to ultraviolet rays to deteriorate, possibly damaging the vinyl chloride resin film.

The present invention has been made by paying attention to the problems in the conventional free drain for drain gutters, and its purpose is to solve the problems in the conventional free drain for rain gutters. Therefore, a free drain for drain gutters and its construction method are provided in which a sand layer is deposited on the bottom of the rain gutter, and the bottom of the gutter is covered with this sand layer to protect the vinyl chloride film at the bottom of the gutter from ultraviolet rays. To provide.

[0005]

The present invention has been made to achieve the above object, and the invention of claim 1 is such that a flange is provided slightly below the upper end opening of the cylindrical body. It is a free drain for rain gutters that is characterized.

According to a second aspect of the present invention, the rain gutter free drain according to the first aspect is attached to the drain port provided at the bottom of the rain gutter so as to penetrate to the lower end of the rain gutter free drain. A method for constructing a rain gutter free drain connecting a drain pipe, characterized in that the rain gutter free drain is attached by making the outer periphery of the rain gutter free drain and a drain outlet of the rain gutter watertight. This is a construction method of a free drain for rain gutters.

According to a third aspect of the present invention, a plurality of drains are provided at the bottom of the rain gutter, and a water stop weir is installed on the inner circumferential surface of the rain gutter between the adjacent drains. It is a method for constructing a free drain for a rain gutter, characterized in that a free drain for a rain gutter is attached by a method.

In the present invention, the material of the free drain for the rain gutter is not particularly limited, but examples thereof include hard vinyl chloride resin, polyethylene, polypropylene, synthetic resin such as polycarbonate, and polyphenylene sulfide. Engineering plastic,
Alternatively, a metal such as iron, stainless steel, copper, or aluminum may be used alone, or a coating layer of a hard vinyl chloride resin may be provided on both sides of a metal core material such as iron, etc. You may use it in combination. The core material may be a metal plate or a mesh, and a fiber-reinforced composite sheet or the like can be used in addition to the metal.

The fiber-reinforced composite sheet may be used for roving continuous fibers such as glass fiber, carbon fiber, alumina fiber, aramid fiber, etc. or a combination thereof, processed products such as non-woven fabric, woven fabric, mat, net and the like. A resin impregnated and molded may be used, and a multilayer structure in which these are combined may be used.

As the rain gutter used in the construction method of the rain gutter of the present invention, there are eaves gutters installed along the eaves of the roof, troughs installed along the eaves of the roof, and the like. It is especially useful for the construction of valley gutters, which have a large area and are exposed to the strong ultraviolet rays of the sun as well as the roof.

In the present invention, the material of the rain gutter is not particularly limited, but for example, a hard synthetic resin having excellent light resistance such as a hard vinyl chloride resin, polymethylmethacrylate, or polycarbonate is preferable. is there. Further, since the metal plate coated with the synthetic resin film has excellent workability as a material for the trough, it is particularly suitable for construction of the trough to which the rain gutter free drain of the present invention is attached. As the synthetic resin film for coating the metal plate, films, sheets and paints of vinyl chloride resin, acrylic resin, polyester resin and the like can be used. Alternatively, the surface of the metal plate may be extrusion-coated directly with the synthetic resin.

Further, in the present invention, the length from the upper end opening of the cylindrical body to the flange provided thereunder may be an appropriate length depending on the structure of the gutter, the angle of inclination, and the like. . For example, in the case of a trough, about 5 mm to 40 mm is preferable, and if it is less than 5 mm, the thickness of the sand layer deposited on the bottom of the rain gutter is small, and the effect of protecting the bottom of the rain gutter is thin, and conversely, If it exceeds 40 mm, the amount of stored water becomes excessively large, which may cause problems such as deformation of the rain gutter.

[0013]

In the construction method of the rain gutter free drain and the rain gutter free drain of claim 1, since the flange is provided slightly below the upper end opening of the cylindrical body, the rain gutter of the present invention is provided. When the universal drain is installed at the bottom of the rain gutter, rainwater for the height from the flange to the top opening of the cylinder is stored,
Even if the rainwater evaporates due to fine weather, sand contained in the rainwater is deposited on the bottom, and the bottom of the gutter is protected from ultraviolet rays as a result of the deposited sand layer covering the bottom.

Further, in the method for constructing the free drain for the rain gutter according to claim 3, since the water stop weir is installed on the inner circumferential surface of the rain gutter between the adjacent drains, the length of the rain gutter is long. Even if there is a slope in the direction, even if the rainwater is stored over the entire length of the rain gutter for the height from the flange to the upper end opening of the cylinder, even if the rainwater evaporates due to fine weather, sand contained in the rainwater Is deposited on the bottom, and the bottom of the gutter is protected from UV rays as a result of the bottom of the deposited sand layer being covered.

[0015]

Embodiments of the present invention will now be described with reference to the drawings. 1 to 3 show an embodiment of the present invention,
FIG. 1 is a partially cutaway sectional view of a free drain for a rain gutter. Figure 2
(A) is a perspective view showing a mounted state of the rain gutter free drain,
(B) is a partially cutaway sectional view taken along line XX of (A). FIG. 3 is an explanatory view showing an attached state of the rain gutter free drain attached to the trough.

In FIG. 1, reference numeral 1 denotes a free drain for drain gutter made of hard vinyl chloride resin, 11 denotes a cylindrical tubular body of the free drain 1 for rain gutter, and an external thread 111 is provided on the outer peripheral surface of the tubular body 11. A flange 112 is provided below the upper end opening 113. In addition, from the upper surface of the flange 112, the cylindrical body 1
The height h to the upper end opening of 1 is 20 mm. Cylinder 1
A hemispherical shell-like lattice 12 for avoiding dust above the upper end opening of 1.
Is provided. Reference numeral 13 denotes an outer cylinder, and an inner thread of the outer cylinder 13 is internally threaded with the male thread 111 of the tubular body 11.
1 is provided, and a flange 132 is provided at the upper end opening thereof.

When the rain gutter free drain 1 is attached to the trough 2, the rain gutter free drain 1 shown in FIG.
The outer cylinder 13 is removed from the tubular body 11, and as shown in FIG. 2, it is attached by penetrating through the drainage port 22 of the trough 2 bottom 21 and protruding downward from the drainage 22 of the valley 2 bottom 21. The outer cylinder 13 is screwed into the
By sandwiching the trough 2 bottom part 21 and the packing 5 between the 12 and the flange 132 of the outer cylinder 13, the outer peripheral part of the tubular body 11 and the drain port 12 of the rain gutter 1 are made watertight, and Inventive rain gutter free drain 1 is attached to a trough 2.

The valley gutter 2 is made by bending a steel plate coated with a vinyl chloride resin film. This trough 2
3, is installed along the eaves between the roofs 6 as shown in FIG.
1 and the drain outlet 2 adjacent to this trough 2
Between 2 and 22, height 50 made of hard vinyl chloride resin
mm water stop weirs 3 are installed on the inner peripheral surface of the trough 2. Further, drain pipes 4 and 4 made of hard vinyl chloride resin are attached to the lower ends of the rain gutter free drains 1 and 1.

Next, a method for constructing the rain gutter free drain 1 will be described. First, a plurality of drain holes 22 and 22 are formed in the bottom 21 of the valley gutter 2 with a holso, and the drain holes 22 and 22 are
The water blocking weirs 3 and 3 are adhered to each other by an adhesive agent and fixed. Next, this trough 2 is attached along the eaves between the roofs 6 and 6. The cylindrical body 2 is attached to the drain port 22 by penetrating it. At this time, the upper end opening 113 of the cylindrical body 11 is attached so that the height h thereof projects by 20 mm from the upper surface of the flange 112.

Next, the outer cylinder 13 is screwed in from the lower side of the tubular body 11 penetratingly attached to the back side of the rain gutter 1 to compress the packing 5 mounted on the surface of the flange 132, and the flange of the outer cylinder 13 is compressed. 132 and the drain 22 of the gutter 2
Watertight between Then, finally, an adhesive is applied to the outer circumference of the outer cylinder 13, and the drainage pipe 4 is inserted into the outer cylinder 13 for adhesion and connection, and the construction is completed.

[Operation of Embodiment] In the valley gutter to which the free drain 1 for rain gutter of the present embodiment is attached, if there is rainfall,
The upper end opening 113 of the tubular body 11 of the rain gutter free drain 1 is located above the upper surface of the flange 112 by a height h = 20 mm, and the space between the outer periphery of the free drain 1 and the drainage port 22 of the trough 2 is watertight. Therefore, water is stored in the trough 2 until the water level reaches the upper end opening 113 of the tubular body 11.

In this way, the water level of the rainwater stored in the trough 2 is the upper end opening 1 of the cylindrical body 11 of the free drain 1 for the rain gutter.
When it reaches 13, the cylindrical body 1 passes through the upper end opening 113 of the cylindrical body 11.
1, and is discharged through the drainage pipe 4.

When the water is stored in the trough 2 in this way, the sand carried by the rainwater is deposited on the bottom 21 of the trough 2 and is not discharged from the rain gutter free drain 1, so that the rainwater evaporates during fine weather. However, only sand remains and deposits in the trough 2. The vinyl chloride resin film on the bottom portion 21 of the trough 2 is protected by the deposited sand and does not deteriorate because it does not come into contact with ultraviolet rays, and the steel plate can be protected and used for a long period of time.

In the construction method of the valley gutter 2 of this embodiment, the flange 1 is located 20 mm below the upper end opening 113 of the tubular body 11.
12 is provided, and the rain gutter free drain 1 provided with the flange 112 is attached to the plurality of drain ports 22 and 22,
On the inner peripheral surface of the trough 2 between the adjacent drainage ports, a water stop weir 3,
Since 3 is installed, rainwater is stored over almost the entire length of the valley gutter 2 even if the valley gutter 2 is inclined with a gradient in the longitudinal direction, and sand contained in the rainwater even if the rainwater evaporates due to fine weather. Is deposited on the bottom 21 and the bottom 2 is added to the deposited sand layer.
As a result of the coating of 1, the bottom 21 is protected from UV radiation.

Although the embodiment of the present invention has been described above with reference to the drawings, the specific configuration of the present invention is not limited to this embodiment, and design changes and the like within a range not departing from the gist of the present invention. Even if it exists, it is included in the present invention.

For example, in the illustrated embodiment, the tubular body 1
1, an outer cylinder 13 is provided on the outer side of 1, and the bottom portion 21 of the trough 2 is sandwiched between the flange 112 of the tubular body 11 and the flange 132 of the outer cylinder 13 so that the rain gutter free drain 1 according to the present invention is a trough 2. Although the outer cylinder 13 is not provided, the flange 112 of the tubular body 11 is simply attached to the drain port 2 of the trough 2.
The rain gutter free drain 1 may be attached to the trough 2 by water-tightly adhering to the peripheral edge of the gutter 2. Further, in the illustrated embodiment, the free drain 1 is attached to the trough 2, but it may be attached to the eaves gutter.

[0027]

[Advantages of the Invention] In the rain gutter free drain according to claim 1,
Since the flange is provided slightly below the upper end opening of the tubular body, when the rain gutter free drain of the present invention is installed on the rain gutter bottom, rainwater of a height from the flange to the upper end opening of the tubular body is provided. Water is stored, and even if the rainwater evaporates due to fine weather, the sand contained in the rainwater is deposited on the bottom, and the bottom is covered with this accumulated sand layer, so that the bottom is protected from ultraviolet rays and can be used for a long time. , The service life of rain gutter can be improved.

In the construction method of the rain gutter free drain according to claim 2, since the outer periphery of the rain gutter free drain and the drain outlet of the rain gutter are made watertight, the rain gutter free drain is attached. Water leakage does not occur from the gap between the drain port and the free drain for the gutter, and construction can be performed easily and reliably.

In the method for constructing a free drain for a rain gutter according to claim 3, since a water stop weir is installed on the inner peripheral surface of the rain gutter at an adjacent drainage port, the rain gutter is inclined with a gradient in the longitudinal direction. However, rainwater is stored over almost the entire length of the rain gutter, and even if rainwater evaporates due to fine weather, the sand contained in the rainwater is deposited on the bottom, and as a result of this deposited sand layer covering the bottom, the bottom is Protected from UV rays. As a result, the bottom part is protected from ultraviolet rays over the entire length of the rain gutter, and the service life of the rain gutter can be improved.

[Brief description of drawings]

FIG. 1 is a partially cutaway sectional view of a free drain for a rain gutter.

FIG. 2A is a perspective view showing a mounted state of the rain gutter free drain, and FIG. 2B is a partially cutaway sectional view taken along line XX of FIG.

FIG. 3 is an explanatory view showing an attached state of a rain gutter free drain attached to a trough.

[Explanation of symbols]

 1 Free drain for rain gutter 11 Cylindrical body 112 Flange 113 Upper end opening 2 Rain gutter 21 Bottom 22 Drain port 3 Water stop weir 4 Drain pipe

Claims (3)

[Claims] 1. A free drain for a rain gutter, characterized in that a flange is provided slightly below the upper end opening of the cylindrical body. 2. A drain outlet provided at the bottom of the rain gutter,
A method for constructing a rain gutter free drain in which the free drain gutter free drain according to claim 1 is attached, and a drain pipe is connected to a lower end portion of the rain gutter free drain. A method for constructing a free drain for drain gutters, characterized in that the free drain for rain gutter is attached by making the outer periphery of the gutter and the drain outlet of the rain gutter watertight. 3. The drain gutter according to claim 2, wherein a plurality of drain holes are provided at the bottom of the rain gutter, and a water stop weir is installed on the inner peripheral surface of the rain gutter between the adjacent drain holes. A method for constructing a free drain for a rain gutter, characterized in that a free drain for a rain gutter is attached to the.