JP2003129764A - Sash drain device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drain device for preventing leakage of rainwater from a drain port in stormy wind and rainfall and lessening sound produced during opening and closing operation of a drain valve. SOLUTION: In a double sliding sash provided with an inner sliding screen and an outer sliding screen, an opening part 5 is provided between an outer rail 3 and an inner rail 2 of a lower frame 1 to fit a drain block 6 having a drain valve 62 in the opening 5, and a cover 7 covering the drain valve 62 is mounted on an outdoor side B of the drain block 6. The cover 7 is projected to the outdoor side B beyond the opening part 5 so that the drain block 6 is prevented from slipping off from the opening part 5. The cover 7 regulates an opening of the drain valve 62 of the drain block 6. In addition, since the cover 7 is formed of a size covering the drain valve 62, the drain valve is shielded from the outside to have good appearance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage device for a sliding sash having an internal shoji and an external shoji mounted in a window frame.

[0002]

2. Description of the Related Art It is known that a pulling sash is provided with a drainage device because water collects between an outer rail and an inner rail of a lower frame of a window frame.

As such a drainage device, there is one in which a drainage block having a drainage valve which can be opened only outside is fitted into an opening provided in a lower frame of a window frame, and the drainage valve is The weight of the water accumulated in the drainage block opens it to the outside, and the water is discharged to the outside.

[0004]

In the above conventional drainage device, since the drainage valve is exposed to the outside, the windage pressure causes the drainage valve to open beyond the opening required for drainage during strong wind and rain. Rainwater may enter from the drainage port.

Further, in the above conventional drainage device, when the opening degree of the drainage valve is large, the sound generated during the opening / closing operation becomes loud.

Further, in the above conventional drainage device, when a strong wind blows, the drainage valve may open and close without permission even if there is no rainwater, which causes an inconvenience.

Therefore, in order to solve such a problem, the present invention provides a drainage device which prevents rainwater from entering through the drainage port even when the wind and rain are strong and reduces the noise generated when the drainage valve is opened and closed. It is intended to be provided.

[0008]

The invention described in the first claim of the present application is, in a sliding sash provided with an inner shoji and an outer shoji, an opening is provided between the outer rail and the inner rail of the lower frame, In the sash drainage device, a drainage block having a drainage valve is fitted in the opening, and a cover covering the drainage valve is attached to the drainage block.

According to the sash drainage device of the present invention, since the cover for covering the drainage valve is mounted, it is possible to prevent rainwater from entering through the drainage port even in the case of strong wind and rain. Also,
The opening that covers the drain valve can be restricted by the cover that covers the drain valve, and thus the opening of the drain valve can be reduced to reduce the noise generated.

The invention described in claim 2 of the present application is the drainage device of the sash according to the invention described in claim 1, wherein the cover prevents the drainage block from coming off from the opening.

According to the sash drainage device of the present invention, it is rational because the cover also serves as a retainer for the drainage block.

In the invention described in claim 3 of the present application, in the invention described in claim 1 or 2, the cover is
The sash drainage device is formed in a size that covers the drainage valve of the drainage block.

According to the sash drainage device of the present invention, since the cover is formed to have a size to cover the drainage valve, the drainage valve is shielded from the outside and the appearance is improved.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific examples of the present invention will be described below in detail with reference to the drawings.

As shown in FIG. 1, the lower frame 1 of the sash window frame
In addition, a lower rail 2 for the inner shoji, a lower rail 3 for the outer shoji, and a lower rail 4 for the screen door are provided.

In the drainage device of this example, an opening 5 is provided in a lower frame 1 of a window frame, a drainage block 6 is fitted in the opening 5, and further, as shown in FIG. A cover 7 is attached to B. In addition, A has shown the indoor side.

The opening 5 has a rectangular shape in plan view, and is formed between the lower rail 2 for the inner shoji and the lower rail 3 for the outer shoji near the lower rail 3 for the outer shoji.

The drain block 6 and the cover 7 are made of resin,
The drainage block 6 has a hollow drainage valve case 61 and a drainage valve 62.
It consists of and.

As shown in FIG. 3, in the upper part of the drain valve case 61, a front hooking piece 611, a rear hooking piece 612 and a water collecting port 6 are provided.
13 are provided.

When the drainage block 6 is fitted into the opening 5, the front hooking piece 611 is hooked on the outdoor side edge of the opening 5,
The rear hooking piece is hooked on the indoor side edge of the opening 5.

The front face of the drain valve case 61 is formed so as to project from the upper part to the lower part toward the front side.
4 are provided.

A drain valve 62 is rotatably attached to the upper portion of the drain port 614. The drainage valve 62 can be opened only to the outside, and is normally in contact with the periphery of the drainage port 614 due to the weight of the drainage valve 62 to close the drainage port 614.

The drainage valve 62 of this embodiment is provided so that the lower part of the drainage valve is located on the outdoor side B with respect to the rotation fulcrum. Therefore, the drainage valve 62 is always brought to the closed state by its own weight, and as a result, the drainage valve 62 does not stop midway and no light comes in from the outside.

As shown in FIG. 4, a cover 7 for covering the drain valve 62 is attached to the drain block 6 fitted in the opening 5 of the lower frame 1 from the outdoor side B.

The cover 7 is a drain valve 62 of the drain block 6.
It is formed in a size to cover. According to the sash drainage device of this example, since the cover is formed to have a size that covers the drain valve, the drain valve is shielded from the outside and the appearance is improved.

When the cover 7 is mounted, the protrusions 71 provided on the inner side of the cover 7 are engaged with the engaging grooves 615 provided on both side surfaces of the drainage block 6. A claw 711 for preventing slipping out is provided at the tip of the protrusion 71.

It should be noted that, conversely to this example, protrusions may be provided on both side surfaces of the drainage block 6 and engagement grooves may be provided inside the cover 7.

As shown in FIG. 5, the outer side B of the drainage block 6 is covered with a cover 7 leaving a minimum gap 8 required for drainage.
Covered by.

By mounting the cover 7 in this manner, it is possible to prevent rainwater from entering through the drain port 614 even in the case of strong wind and rain. In addition, the appearance design can be improved.

The drainage device of this example is composed of a lower rail 2 for internal shoji.
The water 9 collected between the lower rail 3 for the shoji and the shoji screen is collected in the drainage block 6 through the water collecting port 613. When a certain amount of water 9 is collected in the drainage block 6, the collected water 9 The weight of the drain valve 62 opens the drain valve 614.
The water 9 flows out through the gap 8 to the outdoor side B.

The cover 7 attached to the drainage block 6 projects to the outside B from the opening 5 into which the drainage block 6 is fitted, and the drainage block 6 extends from the opening 5 to the inside A side. To prevent it from slipping out.

Further, as shown in FIG. 6, a rib 72 is provided inside the cover 7, and the drain valve 62 of the drain block 6 is provided.
Regulate the opening. By controlling the opening degree of the drainage valve 62, it is possible to reduce the sound generated when the drainage valve 62 is opened and closed.

The rib 72 is not essential, and any shape may be used as long as the shape of the cover 7 regulates the opening of the drain valve 62.

[0034]

As described above, according to the present invention, in the sliding sash provided with the inner shoji and the outer shoji, an opening is provided between the outer rail and the inner rail of the lower frame, and the opening is provided in the opening. A drainage device for a sash, in which a drainage block having a drainage valve is fitted, and a cover for covering the drainage valve is attached to the drainage block.

Since the cover for covering the drain valve is attached in this way, even when the weather is strong and rainy, it is possible to prevent rainwater from entering through the drain port. In addition, the cover that covers the drain valve can regulate the opening degree of the drain valve, which can reduce the opening degree of the drain valve and reduce the generated noise.

Further, in the present invention, the cover has a structure for preventing the drain block from coming off from the opening.

As described above, the cover also serves as a retainer for the drainage block, which is rational.

Further, in the present invention, the cover is a sash drainage device having a size that covers the drainage valve of the drainage block.

Since the cover is formed in such a size as to cover the drain valve as described above, the drain valve is shielded from the outside and the appearance is improved.

As described above, according to the present invention, it is possible to obtain the drainage device which prevents the intrusion of rainwater from the drainage port and reduces the noise generated during the opening / closing operation of the drainage valve even in the case of strong wind and rain. It is possible.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing a drainage device of a sash according to a specific example of the present invention.

FIG. 2 is a vertical sectional view showing a drainage device of a sash according to a specific example of the present invention.

FIG. 3 is a perspective view showing a drainage block and a cover according to a specific example of the present invention.

FIG. 4 is a perspective view showing a drainage block with a cover according to a specific example of the present invention.

FIG. 5 is a vertical cross-sectional view showing a drainage device of a sash according to a specific example of the present invention.

FIG. 6 is a vertical cross-sectional view showing a drainage device of a sash according to a specific example of the present invention.

[Explanation of symbols]

1 lower frame 2 Lower rail for internal shoji Lower rail for 3 shoji 4 Lower rail for screen door 5 openings 6 drainage block 61 drain valve case 611 Front hanging piece 612 Rear hook 613 water collecting mouth 614 drain 615 engagement groove 62 drain valve 7 cover 71 ridge 711 nails 72 ribs 8 gap 9 water A indoor side Outside B

Claims (3)

[Claims] 1. In a sliding sash equipped with an inner shoji and an outer shoji, an opening is provided between an outer rail and an inner rail of a lower frame, and a drain block having a drain valve is fitted into the opening. The sash drainage device is characterized in that a cover for covering the drain valve is attached to the drain block. 2. The sash drainage device according to claim 1, wherein the cover prevents the drainage block from coming off from the opening. 3. The sash drainage device according to claim 1, wherein the cover is formed in a size that covers the drainage valve of the drainage block.