JP2601376Y2 - Sweep drain for eaves gutter - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain for eaves gutters.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Utility Model Laid-Open No. 59-17552.
As described in Japanese Patent Publication No. 7, an inner cylinder provided with a flange on the outer periphery of a cylinder provided with an external thread on the outer peripheral surface, and a flange provided on the outer periphery of the upper edge of the cylinder with a female screw provided on the inner peripheral surface. A free drain for eaves gutter with an outer cylinder provided and an inner cylinder inserted into the mounting hole provided in the eaves gutter, and an outer cylinder female screw screwed into the inner cylinder male thread It has been known.

[0003]

However, the conventional drain for eaves gutters as described in Japanese Utility Model Application Laid-Open No. Sho 59-175527 discloses an inner cylinder which is used when the amount of rainwater in the eaves gutter is large. The rainwater in the inside becomes turbulent and bubbles are generated, so it may not flow down smoothly and may overflow into the eaves gutter.

The present invention has been made in view of such a problem in the conventional drain for eaves gutter, and an object thereof is to solve the problem in the conventional drain for eaves gutter. Another object of the present invention is to provide a drain for eaves gutters in which rainwater flows smoothly in the inner cylinder even when the amount of rainwater in the eaves gutter is large, and there is no risk of rainwater overflowing into the eaves gutter.

[0005]

Means for Solving the Problems To achieve the above object, the present invention provides a free drain for eaves gutter, comprising an inner cylinder having a flange on the outer periphery of a cylinder having an external thread on the outer peripheral surface, and an inner cylinder having an inner thread. An outer cylinder provided with a flange is provided on the outer periphery of the upper edge of the cylinder provided with a female screw on the peripheral surface, and a free drain in which a male screw of the inner cylinder can be screwed into the female screw of the outer cylinder. Pillars around the upper opening to avoid dust
A plurality of protrusions are provided, and a ridge projecting inwardly of the inner cylinder is provided on the inner peripheral surface of the inner cylinder between the pillars for avoiding dirt obliquely to the circumferential direction of the inner peripheral surface of the inner cylinder. This feature solves the above-mentioned problem.

In the present invention, the material of the drain for eaves gutters 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. The materials may be used in appropriate combinations. The core material may be a metal plate or a net-like material, and a fiber-reinforced composite sheet or the like may be used in addition to metal.

[0007] The fiber reinforced composite sheet includes roving-like continuous fibers, such as glass fiber, carbon fiber, alumina fiber, and aramid fiber, or a combination thereof, and processed products such as nonwoven fabric, woven fabric, mat, and net. A resin-impregnated resin can be used, and a multilayer structure obtained by combining these resins can also be used.

[0008]

[Function] The inner drain of the drain for eaves gutter of the present invention
There are several pillars around the upper opening
Since ridges projecting inward of the inner cylinder are provided diagonally with respect to the circumferential direction of the inner cylinder on the inner peripheral surface of the inner cylinder between the columns to avoid waste , rainwater flowing from the eaves gutter is Pillars to avoid garbage
The flow is divided into numbers, and the divided flow is provided below
The rainwater that is guided obliquely downward by hitting the projected ridge and flowing down inside the inner cylinder is surely spiraled and a vortex is generated, and an air escape passage is created at the center of the vortex, suppressing the generation of bubbles and smoothing Flowed down. Also, the ridge on the inner peripheral surface of the inner cylinder is
Pillars to avoid garbage are provided between pillars to avoid garbage
Mold that moves up and down the inner cylinder without disturbing
Can be formed integrally with pillars to avoid waste
Molding with grease or the like is easy.

[0009]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing an attached state of an example of a drain for eaves gutter of the present invention, and FIG. 2 is a sectional view taken along line II-II in FIG. 1 and 2, reference numeral 1 denotes a flexible drain for eaves gutter of the present invention made of hard vinyl chloride resin. The universal drain 1 for eaves gutter of the present invention is provided with an inner cylinder 11 and an outer cylinder 12.

A male screw 111 is provided on an outer peripheral surface of the inner cylinder 11, and a flange 112 is provided on an outer periphery of an upper edge thereof. A plurality of dust avoiding columns 113 are protruded from the upper opening peripheral edge of the inner cylinder 11, and a dust avoiding ring 114 is provided at the upper end of the column 113. Between the pillars 113 to avoid each garbage
On the inner peripheral surface of the inner cylinder 11, projecting ridges 115, 115 projecting inward of the inner cylinder 11 and oblique to the circumferential direction thereof
Are projected at equal intervals.

On the inner peripheral surface of the outer cylinder 12, there is provided a female screw 121 screwed with the male screw 111 of the inner cylinder 11, and a flange 122 is provided on the outer periphery of the upper edge thereof. Etc. are provided.

[Operation of Embodiment] Next, the operation of the adjustable drain for eaves gutter shown in FIGS. 1 and 2 will be described. Reference numeral 2 denotes an eaves gutter made of hard vinyl chloride resin. The inner cylinder 11 of the drain 1 for eaves gutter according to the present invention is inserted into the mounting hole 21 of the eaves gutter 2. Is screwed, so that the drain 1 for eaves gutter of the present invention is attached to the eaves gutter 2.

In this state, rainwater (not shown) in the eaves gutter 2 flows down in the inner cylinder 11. Since the oblique ridges 115 project from the inner surface of the inner cylinder 11, the rainwater flows down spirally to form a vortex, and an air escape passage is formed at the center of the vortex to suppress the generation of bubbles and reduce the rainwater. Flows down smoothly.

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 this embodiment, and a design change or the like may be made without departing from the gist of the present invention. Anything is included in the present invention. For example, in the illustrated embodiment, four ridges are provided on the inner peripheral surface of the inner cylinder 11, but one, two, or three ridges may be provided. Alternatively, five or more sections may be provided.

[0015]

[Effects of the invention] In the present invention, the drain for the eaves gutter is
Rainwater flowing from the eaves gutter is turned into multiple streams by pillars to avoid garbage
The divided flow is a ridge provided below it.
The rainwater is guided obliquely downward and flows down the inside of the inner cylinder, and the rainwater surely forms a spiral and a vortex is generated, and an air passage is created at the center of the vortex to suppress the generation of bubbles and flow down smoothly Therefore, there is no danger of rainwater overflowing from inside the eaves gutter. Further, since only protrude a protrusion on the inner surface of the inner cylinder between the dust avoiding pillars can shape and structure of the outer cylinder and the external thread and the internal thread is provided without any change, waste avoided pillar
Mold that moves up and down the inner cylinder without disturbing
Because it can be molded integrally with the pillars of avoiding garbage,
It is easy to manufacture. Furthermore, even when the outer diameter of the outer cylinder is limited, the drainage of rainwater can be improved by selecting the shape and height of the ridge without changing the inner diameter of the inner cylinder. it can.

[Brief description of the drawings]

FIG. 1 is a plan view showing an attached state of an example of a drain for eaves gutter of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Free drain for eaves gutter 11 Inner cylinder 111 Male screw 112 Flange 113 Dust avoidance column 114 Dust avoidance ring 115 Ridge 12 Outer cylinder 121 Female screw 122 Flange 123 Groove 2 Eaves gutter

Claims (1)

(57) [Scope of request for utility model registration] 1. An inner cylinder in which a flange is provided on an outer periphery of a cylinder having an external thread on an outer peripheral surface, and an outer cylinder in which a flange is provided on an outer periphery of an upper edge of a cylinder having an internal thread on an inner peripheral surface. Doo is provided, in a freely drain the inner cylinder of the external thread on the outer cylinder internal thread adapted Nejikomeru, inner circle
There are several pillars around the upper opening of the cylinder to avoid dust.
The eaves are characterized in that ridges protruding inward of the inner cylinder are provided obliquely with respect to the circumferential direction of the inner peripheral surface of the inner cylinder on the inner peripheral surface of the inner cylinder between pillars for avoiding dust. Sweep drain for gutter.