JP2002194962A - Drainage structure for daylight window - Google Patents

Abstract

PROBLEM TO BE SOLVED: To drain dew condensation which is condensed on an interior side face of a daylight window and prevent storm water from blowing with strong wind via a drain hole. SOLUTION: A drainage structure of a daylight window is an opening frame 1 affixed with a daylight glass 2. A water catchment horizontal groove 4 catching dew condensation dropping down along the down side of the daylight glass 2 at overall width is formed on an opening frame material of a lower part of water 3 of a lower part of water of a daylight window. A drain hole 5 that drains gathered dew condensation in the water catchments horizontal groove 4 from an inside of the opening frame material of a lower part of water 3 to an outside is equipped. A flap valve 6 that opens and closes the drain hole 5 by shaking by the dead load is equipped.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage structure for a daylighting window, and more particularly, to a structure in which rainwater is blown from a drainage hole together with a strong wind while draining dew condensation on an indoor surface of a daylighting glass. It is related to the technology to be prevented.

[0002]

2. Description of the Related Art Conventionally, in a lighting window such as a skylight in which a lighting glass is attached to an opening frame, a slope similar to the roof slope is formed by attaching to a roof or the like. by the way,
In the daylighting window provided with the daylighting glass, dew condensation easily occurs on the indoor surface of the daylighting glass, and the generated dew is transmitted to the underwater opening frame material and dropped on the indoor side.

In order to solve such a problem, it is conceivable to form a drain hole in the underwater opening frame material to drain the dew condensation water to the outdoor side. There was a problem of intrusion.

[0004]

In order to solve such a problem, it is conceivable to form a drain hole in the underwater opening frame material to drain the dew condensation water to the outdoor side. There is a problem that rain and wind can enter the indoor side.

The present invention has been made in view of such a problem, and prevents rainwater from being blown from a drain hole together with a strong wind while draining dew water condensed on the indoor surface of the daylighting glass. It is an object of the present invention to provide a drainage structure for a lighting window that can perform the same.

[0006]

According to a first aspect of the present invention, there is provided a drainage structure for a daylighting window in which a daylighting glass 2 is attached to an opening frame 1, and a daylighting side of the daylighting window on a side of the underwater opening frame member 3. A water collecting lateral groove 4 is formed to collect the dew water dripping along the lower surface of the glass 2 over the entire width of the underwater opening frame member 3. A drain hole 5 for draining water from the inner surface side to the outer surface side is provided, and a flap valve 6 that swings by its own weight to open and close the drain hole 5 is provided. According to such a configuration, the dew water generated on the lower surface of the daylighting glass 2 travels through the daylighting glass 2, is collected in the water collecting lateral groove 4 on the side of the underwater opening frame member 3, and is formed on the underwater opening frame member 3. Since the drain hole 5 is provided with the flap valve 6 which swings by its own weight while being able to drain water from the drain hole 5 to the outdoors, the flap valve 6 in the lighting window which is inclined at the same gradient as the roof gradient is provided. Freely swinging in the vertical direction to open the drain hole 5, receiving the wind, the flap valve 6 swings to close the drain hole 5, and the strong wind and rain blows the drain hole 5 to the indoor side. Invasion can be prevented.

According to a second aspect of the present invention, a stopper 7 is provided to prevent the flap valve 6 from swinging to the open side more than a certain amount. According to such a configuration, the flap valve 6 does not completely open (reverse opening) due to strong wind, the flap valve 6 does not greatly open due to the wind, and the function of the flap valve 6 is not impaired. May be.

According to a third aspect of the present invention, drain holes 5, 5 are formed at both ends of the water collecting lateral groove 4, so that the center in the longitudinal direction of the water collecting lateral groove 4 is on the water side and both ends are on the water lower side. A water gradient is formed in such a plan view. According to such a configuration, the condensed water collected in the water collecting lateral groove 4 can be reliably drained outside.

According to a fourth aspect of the present invention, drain holes 5, 5 are formed at both ends of the water collecting lateral groove 4, and a gradient in which the vertical height of the central part in the longitudinal direction of the water collecting lateral groove 4 is high and both ends are low is provided. It is characterized by being formed. According to such a configuration, the condensed water collected in the water collecting lateral groove 4 can be reliably drained outside.

[0010]

Embodiments of the present invention will be described below. FIG. 1 is a schematic sectional view. FIG. 2A is a schematic sectional view showing the open state of the flap valve, and FIG. 2B is a schematic sectional view showing the closed state.

The daylighting window 8 is generally a rectangular opening frame 1 composed of an underwater opening frame member 3, an underwater opening frame member (not shown), and right and left side frames 9, 9, holding the daylighting glass 2. It is. The daylighting glass 2 has a double glass structure with a spacer 10 interposed. Although it has a double-glazed structure, when it is constructed as a skylight, dew condensation occurs on the lower surface of the glass 11 on the indoor side, for example, the metal frame members 3, 9 and the like, and this is the same as the gradient of the roof R. The water flows down the lower surface of the glass 11 which becomes a gradient, and flows down to the lower side of the water. In the present invention, such drainage of the dew water is desirably discharged to the outside of the lighting window 8. The details will be described below.

A groove member 14 in which a crosspiece 12 is provided on the lower surface of the glass 11 on the indoor side, and a standing piece 13 is formed on the lower surface of the crosspiece 12
The water collecting lateral groove 4 is formed by the crosspiece 12 and the groove material 14 over the entire width of the underwater opening frame material 3. A vertical hole 15 is formed in the underwater opening frame 3 at both ends of the water collecting lateral groove 4, and a pipe material 16 is inserted into the underwater opening frame 3 to be collected in the water collecting lateral groove 4 to condense dew water. The water can be drained outside the frame member 3, that is, outside the daylighting window 8. A flap valve 6 that swings by its own weight and opens and closes the drain hole 5 is provided at the tip end of the pipe member 16 whose inside is the drain hole 5.

As shown in FIGS. 6 and 7, for example, a shaft hole is formed in a flange 17 formed at an outdoor end of a pipe member 16 made of synthetic resin, and both ends of an upper portion of the flap valve 6 are formed in the shaft hole. By inserting the shaft portions 18 and 18 of the
The flap valve 6 is swingably mounted under its own weight to form a flap valve unit 19. The upper outer surface of the pipe member 16 has a water gradient descending to the outdoor side.

The condensed water generated on the lower surface of the daylighting glass 2 is collected in the water collecting lateral groove 4 on the side of the underwater opening frame member 3 through the daylighting glass 2 and formed on the underwater opening frame member 3. Since the drain hole 5 is provided with the flap valve 6 which swings by its own weight while being able to drain water from the drain hole 5 to the outside, the flap valve is provided at the lighting window 8 inclined at the same gradient as the roof gradient. 6 is free to swing vertically and drain holes 5
To drain the water, the flap valve 6 swings in response to the wind, and closes the drain hole 5, so that it is possible to prevent rain and wind from entering the indoor side through the drain hole 5 due to strong wind and rain. It is. 22 is a drainer, 23 is a waterproof packing,
24 is a glass support bar.

FIG. 3 shows another embodiment, in which a stopper 7 is provided in the vicinity of a shaft 20 for rotatably supporting the flap valve 6, and a projection 21 on the side of the flap valve 6 comes into contact with the stopper 7. The flap valve 6 is prevented from swinging to the opening side more than a certain amount, and the flap valve 6 is not completely opened (reversely opened) by a strong wind. It does not have to open greatly, and the function of the flap valve 6 does not need to be impaired (see FIG. 4). Specifically, the flap valve 6 is set to a maximum opening angle θ of about 45 °. In this case, the flap valve 6 is swingably attached to the shaft 20, but may be integrated with the flap valve 6 as in the above embodiment.

FIGS. 9 to 11 show another embodiment of the present invention. The basic structure of this embodiment is the same as that of the above-described embodiment. Description is omitted.

In the present embodiment, drain holes 5, 5 are formed at both ends of the water collecting lateral groove 4, and the central part in the longitudinal direction of the water collecting lateral groove 4 is on the water side, and both ends are on the water lower side. A water gradient is formed in such a plan view.

In the present embodiment, the condensed water collected in the water collecting lateral groove 4 due to the water gradient a in plan view formed in the water collecting lateral groove 4 can be drained to the outside without fail.

FIG. 12 shows still another embodiment. However, the basic configuration of the present embodiment is the same as that of the above-described embodiment, and the common portions are denoted by the same reference numerals and description thereof is omitted. .

In the present embodiment, drainage holes 5 are formed at both ends of the water collecting lateral groove 4, and a gradient B is formed in which the central part in the longitudinal direction of the water collecting lateral groove 4 is high and both ends are low. It is.

In the present embodiment, the condensed water collected in the water collecting lateral groove 4 can be reliably drained outside.

[0022]

According to the first aspect of the present invention, there is provided a drainage structure for a lighting window in which a lighting glass is attached to an opening frame. A drainage groove is formed to collect the condensed water to be collected over the entire width of the underwater opening frame material, and a drain hole is provided to drain the condensed water collected in the collecting water lateral groove from the inner surface side to the outer surface side of the underwater opening frame material. Since there is a flap valve that swings by its own weight to open and close the drain hole, dew condensation generated on the lower surface of the lighting glass is collected in the collecting horizontal groove on the underwater opening frame material side through the lighting glass, The drainage hole can be drained to the outside through the drainage hole formed in the underwater opening frame material, but the drainage hole has a flap valve that swings by its own weight. The flap valve is free to swing vertically and open the drain hole, Only in and of closing the drain hole flap valve swings, there is an advantage that it can wind and rain with strong wind and rain is prevented from entering the indoor side to the drain hole.

According to a second aspect of the present invention, in addition to the configuration of the first aspect, a stopper is provided to prevent the flap valve from swinging to the open side more than a certain amount. The flap valve does not completely open due to strong wind, the flap valve does not open greatly due to the wind, and the function of the flap valve does not need to be impaired.

According to a third aspect of the present invention, in addition to the configuration of the first aspect, drain holes are formed at both ends of the water collecting lateral groove, and the center in the longitudinal direction of the water collecting lateral groove is on the water side and the both ends are water. Since the water gradient is formed in a plan view such that it is on the lower side, in addition to the effect of claim 1, there is an advantage that the dew condensation water collected in the collecting lateral groove can be reliably drained to the outside. .

According to a fourth aspect of the present invention, in addition to the configuration of the first aspect, drainage holes are formed at both ends of the water collecting lateral groove, and the vertical height of the central portion in the longitudinal direction of the water collecting lateral groove is high and both ends are high. Since the lowering gradient is formed, in addition to the effect of the first aspect, there is an advantage that the dew condensation water collected in the collecting lateral groove can be surely drained to the outside.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing one embodiment of the present invention.

FIG. 2A is a schematic sectional view showing an open state of the above flap valve, and FIG. 2B is a schematic sectional view showing a closed state thereof.

FIG. 3 is a schematic sectional view showing a support structure of the flap valve according to the first embodiment.

FIG. 4 is a schematic sectional view showing an opening limit of the flap valve.

FIG. 5 is a front view showing an arrangement position of the above flap valve.

6A and 6B show the same flap valve unit, wherein FIG. 6A is a sectional view, FIG. 6B is a front view, and FIG. 6C is a rear view.

FIG. 7 shows the same flap valve, (a) is a side view,
(B) is a front view.

FIG. 8 shows the same drainage operation as in the above, (a) being a schematic plan view,
(B) is a schematic front view.

FIG. 9 is a schematic plan view showing a drainage action of another embodiment of the above.

FIG. 10 is a sectional view taken along line A-A ′ of FIG. 9;

11 is a sectional view taken along line B-B 'of FIG.

12 shows still another embodiment of the above, wherein (a) is a schematic plan view and (b) is a perspective view of a main part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Opening frame 2 Daylighting glass 3 Underwater opening frame material 4 Water collecting horizontal groove 5 Drainage hole 6 Flap valve 7 Stopper

Claims (4)

[Claims] 1. A drainage structure for a daylighting window in which a daylighting glass is attached to an opening frame, wherein water condensed along a lower surface of the daylighting glass is drained to the underwater opening frame material side below the daylighting window. A drainage horizontal groove is formed to collect water over the entire width of the opening frame material, and a drain hole is provided to drain the condensed water collected in the horizontal water collecting groove from the inside surface to the outside surface of the underwater opening frame material, and swings by its own weight And a flap valve for opening and closing the drain hole. 2. The drainage structure for a lighting window according to claim 1, further comprising a stopper for preventing the flap valve from swinging to the open side more than a predetermined amount. 3. A drain hole is formed at both ends of the water collecting lateral groove, and a gradient is formed in a plan view such that the central part in the longitudinal direction of the water collecting lateral groove is on the water side and both ends are on the water side. The drainage structure for a lighting window according to claim 1, wherein 4. A drain hole is formed at both ends of the water collecting lateral groove, and a gradient is formed in which the vertical height of the central part in the longitudinal direction of the water collecting lateral groove is high and both ends are low. The drainage structure for a lighting window according to claim 1.