JP2007170142A - Sash window - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent rainwater and the like from flowing backward in a sill of a sash window by a draining part, drain rainwater and the like on the sill located blow is discharged through a drain port provided in the bottom face of the sill and inhibit insects from entering through the drain port. <P>SOLUTION: The draining part 20 has an insectproof drain gutter 26 communicating with an outdoor side draining port 16c provided in the bottom face 16b of the sill 16 located below the screen door to drain water on the bottom face 16b and having a specified length in the vertical direction and a drain gutter 28 with a check valve 30 for draining water on the sill 16 in the indoor side in the depth direction beyond the bottom face 16b. The draining part 20 is mounted to the sill 10 of the sash window having the screen door provided on the outdoor side. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a sash window that accommodates a shoji screen and a screen door.

In the sash window that houses the sliding door, rainwater or the like falls along the side surface of the sliding door and flows into the upper surface of the lower frame, and the water that has flowed into the recess formed on the upper surface of the lower frame. The rainwater that has flowed into the recess is once dropped into the hollow portion of the lower frame provided thereunder, and then drained to the outside from the drainage port of the lower frame.
This lower frame drainage hole (hole or hole or notch) is generally formed outdoors, but not only looks bad as it is, but rainwater also flows through the lower frame drainage due to wind pressure from outside. There are problems such as backflowing into the room and entering, and wind and outside air flowing into the room through the window frame.
Therefore, various proposals have been made in order to prevent the reverse flow of rainwater from the drain outlet and the circulation of the outside air.
For example, a check valve is provided at the drain opening that opens outdoors to close the drain, and drainage from the indoor side is possible, but a lower frame that prevents rainwater and wind from entering from the outside is provided. The sash window which has is known (refer patent document 1).
In the outdoor sash described in Patent Document 1, since there is no need to consider the backflow to the indoor side and the intrusion of wind or outside air into the room for the lower frame portion located below the screen door, normally A part of the lower frame located below the screen door, for example, a notch is provided at the end of the rail that supports the screen door, and drainage such as rainwater that has flowed into the lower frame located below the screen door from this notch Yes.

In addition, even if a strong gust is generated by attaching a drain cap with a plurality of drain grooves independently to each other and dividing the drain grooves, a large amount of water from each drain channel can enter the inner window sill. A window frame drainage device that is prevented from entering is also known (see Patent Document 2).
In the window frame drainage device described in Patent Document 2, in a window sash including an inner and outer sill track and a screen door frame holding portion, an outer drainage channel for draining water from the outer sill track and the screen door frame holding portion, and an inner sill By installing a drainage cap with an inner drainage channel that drains water from the drainage truck, and attaching it to the drainage port on the outer side of the window frame sill, air pressure from the wind is applied to the inner drainage channel and the outer drainage channel. Separately, the air pressure in each drainage channel (or groove) is reduced, so that rainwater or the like does not flow backward due to, for example, a gust of wind.

However, in the conventional lower frame structure described in Patent Document 1, when a screen door is used by opening and closing one of the internal and external shojis for ventilation or the like, the problem is that insects enter the indoor from the above-described notched portion. There is.
Furthermore, there is a problem that notches such as rails are easily noticeable and the appearance is impaired.
In addition, in the window frame drainage device described in Patent Document 2, the drain port provided in the screen door frame holding portion is not visible from the outside by the drain cap provided with the outer drainage channel for draining water from the screen door frame holding portion. However, since this outer drainage channel is an outer drainage channel that drains water from the outer sill track, it becomes a large drainage channel in consideration of drainage at the two locations (screen door frame holding portion, outer sill track).
Therefore, similarly to Patent Document 1, there is a problem that insects enter the room through this large drainage channel.
JP-A-2004-238932 Japanese Patent No. 3243695

  The present invention has been made to solve the above-described conventional problems, and its purpose is to completely prevent the backflow of rainwater and the like from the lower frame and the intrusion of outside air, and each drainage port is an outdoor side. It is to prevent the insect from invading from the drain outlet while improving its appearance so that it cannot be seen.

The present invention relates to a sash window including a window frame having an upper frame, a lower frame, and left and right vertical frames, and a shoji and screen door supported in the window frame so as to be openable and closable. The above-mentioned shoji support rail and screen door support rail, and the prospective direction than the shoji support rail, or the prospective direction than the shoji support rail closest to the screen door support rail. An indoor drain outlet is formed in the lower frame for draining water that has entered the room outside to the outside of the lower frame, and the shoji support closest to the water that has entered the outside of the door in the prospective direction than the rail for supporting the shoji or the screen door supporting rail. An outdoor drainage port is formed in the lower frame for draining water that has entered the outside of the prospective direction outside the rail from the lower frame, and a check valve is provided at the indoor side drainage port to drain from the indoor side drainage port. Drainage channel and outdoor drainage port Characterized in that the drainage et mounted drainage component comprising a repellent culvert for guiding a predetermined distance downwardly.
This drainage part has a vertical drainage groove of a predetermined length that drains rainwater that flows into the lower frame below the screen door, and a drainage groove with a check valve that drains the other lower frame part. A single member can realize various functions such as backflow prevention of rainwater, etc., drain cover and insect invasion prevention.

  According to the present invention, it is possible to completely prevent the backflow of rainwater and the like and the intrusion of the outside air by wind while draining from the lower frame simply by attaching the drainage component to the drainage port of the lower frame. Moreover, since each drain outlet is made invisible from the outside by the drainage parts, drainage can be performed without impairing the appearance. Also, separate drainage channels (drainage drainage channels) for draining rainwater that flows into the lower frame below the screen door and drainage channels (drainage channels with check valves) for draining rainwater that flows into the other lower frame. Since it is provided in the drainage part, the shape of the screen door drainage groove can be set to a size that can drain the rainwater that flows into the lower frame below the screen door. That is, the screen door drainage groove can be appropriately reduced, and the drainage groove is formed with a length that leads downward by a predetermined distance. Therefore, even if an insect tries to invade from this drainage port, a drainage part in which a narrow groove having a length of a predetermined distance is provided below the drainage port. Furthermore, it is possible to eliminate the outside light entering the room (light leakage) through the drainage port (the drainage port formed in the lower frame portion located below the screen door).

A drainage structure of a lower frame of a sash window according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a longitudinal sectional view of a sliding window frame according to the present embodiment, and FIG. 2 is an enlarged view of a lower frame portion thereof.
As shown in the figure, the sliding window frame is composed of a lower frame 10, an upper frame 40, and left and right vertical frames (not shown). Inside the sliding window frame, a screen door 50, an external door 60a, and an internal door 60b. Are slidably attached.

As shown in FIG. 2, the lower frame 10 includes an outdoor lower frame base member 11, an indoor lower frame base member 12, and a heat insulating member 13 interposed between the lower frame base members 11 and 12. It consists of
The lower frame base members 11 and 12 are formed with rails 14a and 14b, respectively, on which inner and outer shojis run.

  Here, the outdoor lower frame base member 11 has a screen door rail 16a and a bottom surface 16b connecting the screen door rail 16a and the rail 14a to the outer portion of the rail 14a (the lower end of the shoji support rail closest to the screen door support rail). A screen door lower frame 16 comprising a portion and a bottom surface formed across the lower end portion of the screen door support rail is provided. Further, the water that has entered the outside of the door in the prospective direction of the drainage port 16c (the shoji support rail closest to the screen door support rail) is drained out of the lower frame in contact with or near the screen door rail 16a of the screen door bottom frame bottom surface 16b. An outdoor drain outlet) is provided. The lower part on the indoor side of the screen door lower frame 16 is connected to the vertical wall 11a, and the hollow portions 17a and 17b are connected vertically as shown in the figure. A concave portion 17a (1) for inserting the heat insulating material 13 is provided at the upper portion of the indoor side wall portion of the upper hollow portion 17a so as to open toward the indoor side. Further, the upper surface 17a (2) of the upper hollow portion 17a is inclined so as to descend from the indoor side toward the outdoor side.

  The indoor lower frame base member 12 has a rail 14b formed on the outdoor side thereof, and a hollow portion 17c formed on the lower side of the rail 14b. On the other hand, the indoor upper end of the indoor lower frame base member 12 is provided with a locking piece 12b that engages with a groove-like engagement portion 18a at the outdoor end of the window base 18.

Between the rail 14a of the outdoor lower frame base member 11 and the rail 14b of the indoor lower frame base member 12, support leg portions 15a (1) and 15a (2) are provided along the outdoor side and indoor side end portions. The outdoor cover piece 15a inclined so as to descend from the indoor side toward the outdoor side is disposed with a space between the inclined upper surface 17a (2) of the upper hollow portion 17a. Similarly, support legs 15b (1) and 15b (2) are provided between the rail 14b and the locking piece 12b along the outdoor side and the indoor side end, and from the indoor side to the outdoor side. A room-side cover piece 15b that is inclined so as to descend is disposed with a gap between the indoor cover piece 15b and the stepped upper surface of the upper hollow portion 17c.
Here, between the outdoor end of the outdoor cover piece 15a and the rail 14a and between the outdoor end of the indoor cover piece 15b and the rail 14b, the outdoor cover piece 15a and the indoor cover piece 15b are provided. Clearances 19a and 19b through which rainwater or the like flowing down flows in are provided along the longitudinal direction of the cover pieces 15a and 15b.

A vertical wall 11a that connects the base end of the rail 14a of the outdoor lower frame base member 11 and the upper outdoor side end of the upper hollow portion 17a, and the outdoor support leg 15a (1) of the outdoor cover piece 15a. The gap between them serves as a drainage channel for guiding rainwater and water droplets flowing down on the outdoor cover piece 15a to the drainage component 20 described later, and the vertical wall 11a will be described later as an attachment portion of the drainage component 20. A substantially rectangular insertion port 11b into which the attachment piece 22 (FIG. 3) is inserted (a room-side drain port for draining water that has entered the indoor side in the prospective direction from the shoji support rail closest to the screen door support rail to the outside of the lower frame) Is formed.
Therefore, rain water hitting the surface of the shoji, water drops falling from the shoji, etc. fall on the outdoor and indoor cover pieces 15a, 15b, and through the drain ports (not shown) provided on the rails 14a, 14b, the insertion port 11b. The rainwater and the like are discharged to the outside (outside the lower frame) through the insertion port 11b and the drainage part 20.

  Note that the lower frame described above is an example, and the shoji support rail closest to the indoor drain port (that is, the water or the screen door support rail that has entered the indoor side in the prospective direction of the shoji support rail in the lower frame). The indoor drain outlet that drains water that has entered the interior of the prospective direction to the outside of the lower frame) and the outdoor drain outlet (that is, the water that has entered the exterior of the prospective direction of the door or the screen door support rail rather than the shoji support rail) As long as the outer drain outlet for draining water that has entered the outside of the prospective direction outside the lower frame than the nearest shoji support rail is formed, the lower frame itself is not limited to the specific configuration described above. Of course, the structure may be of another form known in the art.

Next, the drainage component 20 will be described with reference to the drawings.
3 is a perspective view of the drainage component 20, FIG. 4 is a front view thereof, FIG. 5 is a side view thereof, FIG. 6 is a top view thereof, and FIGS. 7A and 7B are views AA and B in FIG. It is sectional drawing in -B.
As shown in FIG. 3, the drainage component 20 has a substantially rectangular box shape, and the upper surface 21 includes a plurality of, for example, two ridges (ribs) 21 a and 21 a that abut the lower surface of the screen door lower frame 16. A mounting piece 22 for insertion into the insertion port 11b is provided on the rear surface, which is provided with the mounting surface and is on the indoor side.

FIG. 4 is a front view of the drainage component 20, and a plate-like body 31 that is a plate-like member for water stop of the check valve 30 is disposed between both side portions of the substantially U-shaped front wall 23.
FIG. 5 is a side view, and an attachment piece 22 is formed to protrude slightly upward at the upper end as shown. As apparent from the top view of FIG. 6, wedge-shaped locking portions 22a are formed on both side surfaces of the mounting piece 22, and when the drainage component 20 is mounted on the drainage port 11b of the window frame, the locking portions 22a can be restrained to some extent against the force in the direction of pulling out by engaging with the end of the drain port 11b.

For example, as shown in FIG. 7A, a front wall 23 having a shape in which a center portion is cut away from a front end upper end portion and a predetermined length portion is left out is disposed on the outdoor side of the drainage component 20. The upper surface 21 has an opening 24 communicating with the drain port 16c of the screen door lower frame 16, and a hanging wall 25 hangs downward from the opening 24. The lower end of the hanging wall 25 hangs down to the same height as the lower end of the remaining portion at the center of the front wall 23. Between the front wall 23 and the hanging wall 25, there is formed a downward insect-proof drainage groove 26 for guiding water flowing from the drainage port 16c of the screen door lower frame to the outside of the lower frame.
And as shown in FIG. 6, the partition wall 24a is formed over the front wall 23 and the drooping wall 25, and the insect-proof drainage groove 26 is divided | segmented into plurality by this partition wall 24a.

The lower end of the hanging wall 25 is bent at a right angle to the indoor side to become a horizontal wall surface 25a, and a concave portion 27 facing the indoor side is formed between the horizontal wall surface 25a and the upper surface 21, and rainwater or the like is placed on the lower frame. Of the vertical wall 11a from the rail surface side (in the prospective direction indoor side), it bounces off against the bottom surface 27a of the recess 27 and reverses from the drainage groove 28 (drainage groove with check valve) below. It is discharged out of the lower frame through the stop valve 30.
A wall for forming a lower end portion of the drainage groove 28 of the drainage component 20 when the attachment piece 22 is inserted into the insertion port 11b and attached to the lower frame of the window, below the rear surface of the drainage component 20. 29 is formed.

The check valve 30 includes a plate-like body 31 disposed below the bent horizontal wall surface 25a of the hanging wall 25, and has a swivel portion 32 serving as a hinge at the upper end of the plate-like body 31. The swivel part 32 is swivelably supported by a support part formed between both side walls 20a of the drainage component 20, so that the plate-like body 31 can be freely opened and closed only in the outdoor direction from the state where it is suspended by its own weight. Is attached.
On the other hand, when the plate-like body 31 receives a force from the outdoor side, it contacts the inner side wall portion (not shown) of the drainage component 20 and the outdoor side end of the wall 29 to seal the drainage groove 28. Wind from the outdoor side does not blow into the indoor side through the drainage groove 28 of the lower frame.
FIG. 7B is a cross-sectional view of the drainage component 20 in the center in the width direction as seen in the direction of the arrow BB. The recess 27 is partitioned by a partition wall 27b.

On the outdoor side of the plate-like body 31 of the check valve 30, a plurality of protruding strips 31a are arranged at equal intervals in the vertical direction. The protrusions 31a also serve to prevent the plate-like body 31 from largely swinging and sticking to the lower end surface of the horizontal wall surface 25a due to water flowing into the drain groove 28 from the indoor side. be able to.
That is, if the protrusion 31a is not provided on the plate-like body 31 and its outer surface is flat, the plate-like body 31 swings and its surface once comes into contact with the lower end surface of the horizontal wall surface 25a. In some cases, it sticks to the lower side of the horizontal wall surface 25a. In this case, air freely circulates from the outside to the inside of the room, and rainwater or outside air enters the room.

On the outdoor end side of the drainage component 20, an insect-proof drainage groove 26 communicating with the drainage port 16c formed on the bottom surface 16b of the screen door lower frame 16 is formed as described above, and the vertical length of the insect-proof drainage groove 26 is formed. By lengthening the length, there is also an advantage that it is difficult for insects to enter the inside of the screen door frame (upper side of the screen door frame) from the drain port 16c through the insect-proof drainage groove 26. Further, when the indoor lighting is darkened at night, if the drainage part 20 is not provided, external light enters from the drainage port 16c provided on the bottom surface 16b of the screen door lower frame, and that portion appears to shine from the room, but the insecticidal drainage The troublesomeness can be eliminated by increasing the vertical length of the groove 26.
Further, a partition wall 24a is formed between the front wall 23 and the hanging wall 25, and the insect-proof drainage groove 26 is divided into a plurality of parts by the partition wall 24a, so that the size of each of the divided grooves is reduced. This makes it difficult for insects to enter the lower frame (upper side of the lower frame).

  The drainage component 20 can be formed of, for example, a synthetic resin, but may of course be a metal or other material. Further, the drainage part 20 can be easily attached to the drainage port of the window lower frame, and can be easily attached and detached, so that it can be easily replaced when it breaks down.

It is a longitudinal cross-sectional view of the sash window which concerns on embodiment of this invention. FIG. 2 is an enlarged vertical sectional view of a lower frame of the sash window shown in FIG. 1. It is a perspective view of drainage parts. It is the front view of drainage parts. It is a side view of drainage parts. It is a top view of drainage parts. 7A and 7B are cross-sectional views of the drainage parts taken along arrows AA and BB, respectively.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Lower frame, 11, 12 ... Indoor side, outdoor lower frame base member, 13 ... Thermal insulation member, 14a, 14b ... Indoor side, Outdoor rail, 15a, 15b ... Chamber Outside, indoor side cover piece, 16 ... screen door lower frame, 16c ... drainage port of screen door lower frame, 20 ... drainage part, 22 ... mounting piece, 24a ... partition wall, 26 ... Insect-proof drainage groove, 28 ... drainage groove (drainage groove with check valve), 30 ... check valve, 31 ... plate-like body, 31a ... ridge piece.

Claims (5)

A sash window comprising an upper frame, a lower frame, and a window frame having left and right vertical frames, and a shoji screen and a screen door supported in the window frame so as to be opened and closed,
The lower frame has one or more shoji support rails and a screen door support rail,
An indoor drain outlet for draining water that has entered the prospective direction indoor side from the shoji support rail or water that has entered the prospective direction indoor side from the shoji support rail closest to the screen door support rail to the outside of the lower frame. Formed on the bottom frame,
There is an outdoor drainage port for draining water that has entered the outside of the prospective direction room from the rail for supporting the shoji or water that has entered the outside of the prospective direction from the rail for supporting the shoji that is closest to the screen door support rail. Formed on the bottom frame,
Equipped with a drainage part having a drainage groove with a check valve for draining from the indoor side drainage port and an insect-proof drainage channel for guiding the drainage from the outdoor side drainage port downward by a predetermined distance to the indoor side drainage port A sash window characterized by that. The sash window according to claim 1,
The outdoor drainage port is provided on a bottom surface formed over a lower end portion of the shoji support rail or the lower end portion of the screen door support rail closest to the shoji support rail or the screen door support rail. And a sash window. In the sash window according to claim 1 or 2,
The drainage part has a front wall formed outside the prospective direction room, and a hanging wall formed parallel to the front wall,
The sash window, wherein the insect-proof drainage groove is formed between the front wall and the hanging wall. A sash window according to any one of claims 1 to 3,
The drainage part has a partition wall formed over the front wall and the hanging wall,
The sash window, wherein the insect-proof drainage groove is divided into a plurality by the partition wall. In the sash window according to any one of claims 1 to 4,
The sash window, wherein the check valve of the drainage part comprises a water stop plate member swingably attached to the drainage part and a protruding strip on the outside of the prospective direction of the plate member.

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