JP7385530B2 - Fittings and window equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to fittings and window devices, and in particular to improvements in a drainage structure provided in a lower frame.

Some of the lower frames of fittings have a drainage hole on the upper surface and a drainage hole on the lower part of the facing surface (hereinafter referred to as the front) facing the outdoors. These drainage holes and water drain holes communicate with each other via a hollow portion. The drain hole is provided with a drain valve that serves as a check valve. In this type of fittings, when water such as rainwater or condensation water reaches the top surface of the lower frame, this water is discharged into the hollow part through the drainage hole, and the water stored in the hollow part is further discharged through the drainage hole and drain valve. It will be discharged outside. Therefore, it is possible to prevent water that has reached the upper surface of the lower frame from entering the indoor side, which is advantageous in terms of watertightness.

In order to ensure good drainage from the drain valve even under conditions of high outdoor pressure, such as during a typhoon or rainstorm, it is necessary to ensure a sufficient water head difference between the drain hole and the drain hole. preferable. For this reason, conventionally, there have also been provided devices in which a draining member is added so as to communicate with the draining hole in the lower frame. That is, a hollow draining member is provided so as to protrude toward the outdoors from the front surface of the lower frame and then bent downward, and a second draining member is provided with a drain valve attached to the bottom surface of the draining member. A hole is formed so that the water discharged from the drain hole in the lower frame is further discharged to the outside via a drain member (see, for example, Patent Document 1).

Japanese Patent Application Publication No. 2016-148207

In the above-mentioned fittings, the second drain hole provided in the draining member is located below the drain hole in the bottom frame, so it is possible to increase the water head difference, and when the outdoor environment is under high pressure. It is also possible to improve drainage performance. However, since the draining member is added to the front surface of the lower frame, this is not necessarily preferable in terms of appearance quality. Moreover, since the draining member is configured to protrude outside from the entire length of the front surface of the bottom frame, it is easily affected by external forces, causing problems such as falling off from the bottom frame and causing damage. There is also a concern that drainage performance may be impaired under high pressure conditions.

In view of the above-mentioned circumstances, the present invention provides fittings and windows that can prevent the appearance quality from being impaired and also ensure sufficient drainage performance and maintain watertightness even under conditions of high outdoor pressure. The purpose is to provide equipment.

In order to achieve the above object, the fitting according to the present invention has a lower frame base provided with a hollow portion, and a mounting plate portion extending downward from the lower surface of the lower frame base, A fitting comprising a lower frame installed with a plate part superimposed on a mounting surface of an object to be attached, the lower frame having a lower frame disposed outside the mounting plate part on the lower surface of the lower frame base. A drain hole is provided in the part where the water drains, and a drain valve is provided in the part corresponding to the drain hole, and the drain valve is a hollow hole having a communication port on the top surface and a drain port on the side or bottom surface. The valve body is configured to include a shaped valve body and a plate-shaped valve body that opens and closes a drain port of the valve body, and the valve body is connected to the lower frame base through the valve body with the communication port aligned with the drain hole. It is characterized by being attached so that it protrudes downward from the lower surface of the .

Further, the window device according to the present invention includes an existing lower frame supported by a frame, a lower frame base provided with a hollow portion, and a mounting plate portion extending downward from the lower surface of the lower frame base. and a lower frame installed with the mounting plate part superimposed on the facing surface of the existing lower frame, the lower frame having a lower frame on the lower surface of the lower frame base. A water drain hole is provided in a portion located outdoors relative to the mounting plate portion, and a drain valve is provided in a portion corresponding to the water drain hole, and the drain valve has a communication port on the top surface and a side surface. Alternatively, the valve body is configured to include a hollow valve body having a drain port on the lower surface, and a plate-shaped valve body that opens and closes the drain port of the valve body, and the connection port is aligned with the drain hole. It is characterized in that it is attached in a state of protruding downward from the lower surface of the lower frame base via the valve body .

According to the present invention, since the drain valve is provided on the lower surface of the lower frame base, a water head difference from the upper surface of the lower frame base can be ensured, and drainage can be improved even under conditions of high outdoor pressure. It becomes possible to do so. Moreover, the drain valve disposed on the lower surface of the lower frame base not only eliminates the risk of degrading the appearance quality, but also becomes less susceptible to external forces. As a result, there is no risk of it falling off from the base of the lower frame or causing damage, and it becomes possible to ensure the above-mentioned drainage performance and improve the watertightness of the fittings.

Further, according to the present invention, even when a lower frame is installed for renovation purposes on a building frame with an existing lower frame, since the drain valve is provided on the lower surface of the lower frame base, the water head from the upper surface of the lower frame base can be reduced. The difference can be ensured, making it possible to drain water well even under conditions of high outdoor pressure. Moreover, the drain valve disposed on the lower surface of the lower frame base not only eliminates the risk of degrading the appearance quality, but also becomes less susceptible to external forces. As a result, there is no risk of it falling off from the base of the lower frame or causing damage, and it becomes possible to ensure the above-mentioned drainage performance and improve the watertightness of the fittings.

BRIEF DESCRIPTION OF THE DRAWINGS It is a longitudinal cross-sectional view of the fittings which are embodiments of this invention. FIG. 2 is a cross-sectional view of the fittings shown in FIG. 1; FIG. 2 is a partially cutaway perspective view of the lower frame of the fitting shown in FIG. 1; FIG. 2 is a partially cutaway perspective view of the lower frame of the fitting shown in FIG. 1; FIG. 2 is an exploded longitudinal cross-sectional view of a main part showing the procedure for attaching the lower frame of the fitting shown in FIG. 1, and showing the state before the base material is attached to the existing lower frame. FIG. 2 is an exploded longitudinal cross-sectional view of main parts showing a state immediately before attaching a lower frame to an existing lower frame to which a base material has been attached. FIG. 3 is a vertical sectional view of main parts showing a state in which the lower frame is attached to the existing lower frame.

Hereinafter, preferred embodiments of fittings and window devices according to the present invention will be described in detail with reference to the accompanying drawings.
1 to 4 show fittings that are embodiments of the present invention. The fittings illustrated here are referred to as double-sliding windows in which an indoor shoji 20A on the indoor side and an outdoor shoji 20B on the outdoor side are slidably provided on the frame 10. The illustrated example further illustrates a fitting in which a screen door 30 is provided in a portion that is closer to the outdoor side than the outer shoji 20B. As is clear from the figure, the present embodiment is a fitting particularly intended for the renovation of building fittings, and by attaching a new frame 10 to the frame B while leaving the existing frame 40. , illustrates fittings that constitute a window device together with the frame 40 before renovation. In addition, in the following explanation, for convenience, the term "existing" is given to the structure related to fittings before renovation, and the term "new installation" is given to the structure related to newly installed fittings for renovation, to distinguish between the two. That's it.

The newly installed frame body 10 of the newly installed fittings is constructed by framing a newly installed upper frame 11, a newly installed lower frame 12, and new left and right vertical frames 13 around the four sides. These new frames 11, 12, and 13 are extruded shapes made of metal such as aluminum alloy or resin, and are configured so that the entire length along the length thereof has a substantially uniform cross-sectional shape. be. The new upper frame 11 and the new lower frame 12 are provided with new inner shoji rail parts 11a, 12a, new outer shoji rail parts 11b, 12b, and new screen door rail parts 11c, 12c at mutually opposing parts. These newly installed rail parts 11a, 12a, 11b, 12b, 11c, and 12c are for guiding the sliding of the inner shoji 20A, the outer shoji 20B, and the screen door 30, and are the parts of the new upper frame 11 and the new lower frame 12 that face each other. They protrude toward the inner circumferential side, and extend along the lengths of the newly installed upper frame 11 and the newly installed lower frame 12, respectively.

The new inner shoji 20A and the new outer shoji 20B include new upper stile 22A, 22B, new lower stile 23A, 23B, and new vertical stile 24A, 25A, 24B, 25B on the four sides of the rectangular facings 21A, 21B, respectively. It is constructed by attaching. In the illustrated example, double-glazed glass is used as the facing materials 21A and 21B. These newly installed inner shoji 20A and newly installed outer shoji 20B have approximately the same external dimensions, and when the newly installed vertical frames 24A and 24B, which are their respective combinations, are installed side by side in the prospective direction, the newly installed frame 10 has approximately the same external dimensions. It is configured to have a size that can close the opening. The new screen door 30 is constructed by attaching a new screen door upper stile 32, a new screen lower stile 33, and left and right new screen door vertical frames 34 to the four circumferences of a screen 31 having a rectangular outer shape.

Here, the prospective direction is a direction along the depth of the fittings, as shown by arrow A in the figure. A surface along the prospective direction may be referred to as a prospective surface. Further, in this embodiment, the term "finding direction" is also used. In the case of something extending along the horizontal direction, such as the newly installed upper frame 11, the finding direction is a direction along the top and bottom orthogonal to the looking direction. In the case of something extending along the vertical direction, such as the newly installed vertical frame 13, the direction along the horizontal line orthogonal to the prospective direction is called the finding direction. A surface along the finding direction may be referred to as a finding surface.

On the other hand, although the existing fittings installed in frame B before the renovation are not shown in the diagram, similar to the new fittings, the existing internal shoji on the indoor side and the existing external shoji on the outdoor side are attached to the existing frame 40. These are sliding windows that can be slid. In the illustrated example, an existing screen door is further provided in a portion that is on the outside of the room compared to the existing external shoji. These existing inner shoji, existing outer shoji, and existing screen door will not be needed during renovation, so they are shown already removed.

The existing frame body 40 left in the frame B is constructed by framing an existing upper frame 41, an existing lower frame (attached body) 42, and left and right existing vertical frames 43 around the four sides. These existing frames 41, 42, and 43 are extruded shapes made of metal such as aluminum alloy or resin, and are configured so that the entire length along the length thereof has a substantially uniform cross-sectional shape. There is. The fact that the existing inner shoji rail parts 41a, 42a, the existing outer shoji rail parts 41b, 42b, and the existing screen door rail parts 41c, 42c are provided in the mutually opposing parts of the existing upper frame 41 and the existing lower frame 42 is also a new frame. It is the same as 11, 12, and 13. The existing inner shoji rail part 41a, the existing outer shoji rail part 41b, and the existing screen door rail part 41c of the existing upper frame 41 are configured so that their protruding heights are substantially the same. On the other hand, in the existing lower frame 42, the protruding heights of the existing inner shoji rail part 42a and the existing outer shoji rail part 42b are approximately the same, but the protruding height of the existing screen door rail part 42c is configured to be low. . To explain more specifically, the existing lower frame 42 is constructed such that the existing lower frame substrate part 42d, which has a flat plate shape and includes the existing inner shoji rail part 42a and the existing outer shoji rail part 42b, gradually moves downward toward the outdoors. It is slanted to the top. The existing screen door rail portion 42c of the existing lower frame 42 is bent downward from the edge of the existing lower frame base plate portion 42d facing the outdoor side, and then bent from the extending edge of the extended portion 42e extending horizontally toward the outdoors. It protrudes upward, and is configured such that its protrusion height approximately matches the upper surface extension line of the existing lower frame substrate portion 42d. Further, the existing lower frame 42 is provided with an existing finding plate portion 42f extending downward from the extending edge of the extension portion 42e. The existing finder plate portion 42f extends vertically downward from the extending edge of the extension portion 42e. An existing seal receiving plate part 42g is connected to the lower edge of the existing finder plate part 42f, which extends toward the indoor side at a substantially right angle and then bends vertically downward at a substantially right angle.

These existing frames 41, 42, and 43 are each attached to an opening 50 of the frame B via anchor members AK. The opening 50 of the frame B has a rectangular shape with an upper edge 51, a lower edge 52, and left and right side edges 53. As is clear from the figure, regarding the upper edge 51 and left and right side edges 53 of the opening 50, the portions that are on the outside of the room than the respective existing frames 41, 42, and 43 extend along the prospective direction. On the other hand, the lower edge 52 of the opening 50 is provided with a draining surface 52a that is inclined gradually downward toward the outdoors at a portion that is closer to the outdoor side than the existing lower frame 42.

In order to construct a window device by installing new fittings on the existing frame body 40 configured as described above, base materials 61, 62, 63 made of aluminum alloy are applied to each of the existing frames 41, 42, 43 in advance. Link. The base materials 61, 62, and 63 may be provided along the entire length of each existing frame, or may be provided at a plurality of positions with appropriate intervals. For newly installed fittings, the new frames 11, 12, and 13 are framed four times in advance to form a new frame 10, and this new frame 10 is attached to the inner circumferential side of the existing frame 40. From this state, if the mounting screws 70 are screwed into the base materials 61, 62, 63 via the new frames 11, 12, 13, the new frame 10 can be attached to the frame B via the existing frame 40. It becomes possible. After installing the new frame 10, if the new screen door 30, the new outer shoji 20B, and the new inner shoji 20A are sequentially arranged on the new frame 10, the existing fittings will be renovated with the new fittings.

5 to 7 show the procedure for installing the newly installed lower frame 12. Hereinafter, with reference to these figures, the mounting structure of the newly installed lower frame 12 to the existing lower frame 42 will be described in detail, and the characteristic parts of the present invention will also be explained. In reality, as mentioned above, the newly installed frame 10 is attached to the existing frame 40 after being framed around the four sides in advance, but for convenience, only the procedure for attaching the newly installed lower frame 12 to the existing lower frame 42 is shown. Let me explain.

As shown in FIG. 5, when attaching the new lower frame 12 to the existing lower frame 42, the existing outer shoji rail part 42b is cut out in advance, and the base material 62 is attached to the existing inner shoji rail part 42a. . Regarding the existing outer shoji rail section 42b, by using a cutting tool, almost all of the portion that protrudes upward from the existing lower frame base plate section 42d is cut off over the entire length. The base material 62 applied to the existing lower frame 42 includes an existing connecting plate part 62a extending along the vertical direction, and a newly installed connecting plate part 62a bent at a nearly right angle toward the outside from the upper edge of the existing connecting plate part 62a. It has a connecting plate portion 62b. This base material 62 is attached to the existing inner shoji rail part 42a with reinforcing screws 71 via the existing connecting plate part 62a, with the existing connecting plate part 62a superimposed on the surface facing the outside of the existing inner shoji rail part 42a. It is connected to the existing inner shoji rail part 42a by screwing together.

For the existing lower frame 42 to which the base material 62 has been attached as described above, the new lower frame 12 is placed from the inner circumferential side, and is connected to the newly installed connecting plate portion 62b of the base material 62 via the new lower frame 12. By screwing together the mounting screws 70, the newly installed lower frame 12 will be in a connected state. The newly installed lower frame 12 applied in this embodiment includes a newly installed lower frame substrate portion 12d, a newly installed lower frame base portion 12e, a newly installed mounting plate portion 12f, and a newly installed cover plate portion 12g.

The newly installed lower frame board portion 12d has a plate shape that is slightly inclined downwardly toward the outside, and has a newly installed interior shoji rail portion 12a on its upper surface. The above-mentioned mounting screws 70 are screwed into the newly installed connecting plate portion 62b of the base material 62 from a portion of the newly installed lower frame base plate portion 12d that is on the outdoor side of the newly installed inner shoji rail portion 12a. A support wall portion 12h is provided along the vertical direction at the part of the newly installed lower frame base 12e that is closest to the indoor side.

The newly installed lower frame base portion 12e has an irregularly shaped hollow portion 12j, and is provided in a portion that is closer to the outdoor side than the newly installed lower frame substrate portion 12d. More specifically, the newly installed lower frame base 12e includes an inner wall 12e1, a first bottom wall 12e2, an intermediate wall 12e3, a second bottom wall 12e4, an outer wall 12e5, an inclined wall 12e6, and an upper wall. A hollow portion 12j is formed in a portion surrounded by the portion 12e7. The inner wall portion 12e1 extends substantially vertically downward from the extending edge of the newly installed lower frame substrate portion 12d. The lower edge of the inner wall portion 12e1 is formed to terminate above the existing lower frame substrate portion 42d of the existing lower frame 42. The first bottom wall portion 12e2 extends from the lower edge of the inner wall portion 12e1 toward the outside of the room, and is slightly inclined so as to gradually move downward toward the outside of the room. The intermediate wall portion 12e3 extends substantially vertically downward from the extending edge of the first bottom wall portion 12e2. The lower edge of the intermediate wall portion 12e3 is formed to have approximately the same height as the upper edge of the existing screen door rail portion 42c. The dimensions of the first bottom wall portion 12e2 are set so that the surface of the intermediate wall portion 12e3 facing the interior of the room can come into contact with the surfaces of the existing screen door rail portion 42c and the existing facing plate portion 42f. The second bottom wall portion 12e4 extends substantially horizontally from the lower edge of the intermediate wall portion 12e3 toward the outdoors. The outer wall portion 12e5 extends substantially vertically upward from the extending edge of the second bottom wall portion 12e4. The upper edge of the outer wall portion 12e5 is formed to be slightly lower than the upper edge of the inner wall portion 12e1. The newly installed screen door rail portion 12c described above is provided upward from the extending edge of the inclined extension portion 12k extending substantially horizontally from the upper edge of the outer wall portion 12e5 toward the outdoors. The inclined wall portion 12e6 extends gradually upward toward the interior of the room from the upper edge of the outer wall portion 12e5. The upper wall portion 12e7 is continuous from the extending edge of the inclined wall portion 12e6 to the upper edge of the inner wall portion 12e1. The edge of the upper wall 12e7 located on the indoor side is formed to be slightly lower than the upper edge of the inner wall 12e1.

The new mounting plate portion 12f has a flat plate shape extending downward from the intermediate wall portion 12e3, and is formed so that the position of its lower edge substantially coincides with the lower edge of the existing facing plate portion 42f. This new mounting plate part 12f is connected to the existing lower frame 42 by screwing the auxiliary mounting screw 72 while it is in contact with the finding surface 42f1 facing the outside of the existing finding board part 42f.

The newly installed cover plate portion 12g extends substantially horizontally toward the outside so as to extend the second bottom wall portion 12e4 from the lower edge of the outer wall portion 12e5.

As shown in FIGS. 2 to 4, the newly installed lower frame 12 is provided with a drainage structure for draining water from the upper surface of the newly installed lower frame substrate part 12d and the upper surface of the newly installed lower frame base 12e to the outside. As a specific drainage structure, water guide holes 12a1 and 12b1 are provided at appropriate locations on the new inner shoji rail section 12a and the new outer shoji rail section 12b. Therefore, the water on the upper surface of the newly installed lower frame substrate part 12d and the upper surface of the newly installed lower frame base 12e is gradually guided to the outside of the room through these water guide holes 12a1 and 12b1.

Furthermore, in the newly installed lower frame base 12e, drain holes 12e8 are provided at appropriate locations on the upper wall portion 12e7, and drain holes 12e9 are provided at appropriate locations on the second bottom wall portion 12e4. Therefore, water such as rainwater or condensation water on the upper surface of the newly installed lower frame base 12e is introduced into the hollow part 12j of the newly installed lower frame base 12e through the drainage hole 12e8, and the water stored in the hollow part 12j is introduced through the drain hole 12e9. It will be discharged outside. Although not clearly shown in the figure, two drainage holes 12e9 are provided, one each near both ends of the newly installed lower frame 12.

Furthermore, a drain valve 80 is attached to the newly installed lower frame base 12e at a portion corresponding to each drain hole 12e9 on the lower surface of the second bottom wall portion 12e4. The drain valve 80 includes a valve body 81 that has a communication port 81a on the top surface and a drain port 81b on one side, and a plate-shaped valve body 82 that opens and closes the drain port 81b of the valve body 81. This check valve is configured to allow water to pass only from the communication port 81a toward the drain port 81b. That is, when the lower edge of the valve body 82 rotates toward the outdoor side using the upper edge as a fulcrum, the drain port 81b opens and the water stored in the hollow portion 12j is discharged to the outside. . This drain valve 80 has a communication port 81a aligned with a drain hole 12e9 provided in the second bottom wall portion 12e4, and a drain port 81b facing outside the room through the valve body 81 to the second bottom wall portion 12e4. It is attached so that it protrudes from the bottom surface of the. As is clear from the figure, the drain valve 80 is provided so that the portion of the valve body 81 located most outdoors is closer to the indoor side than the extending edge of the newly installed cover plate portion 12g.

According to the newly constructed fitting configured as described above, since the drain valve 80 is provided on the lower surface of the second bottom wall portion 12e4 which is the lowest part of the newly installed lower frame base 12e, the upper wall portion 12e7 provided with the drain hole 12e8 It is possible to ensure a large water head difference H1 from the top surface of the . Therefore, even under conditions of high outdoor pressure such as a typhoon or a rainstorm, it is possible to drain water well. Moreover, the drain valve 80 disposed on the lower surface of the second bottom wall portion 12e4 does not protrude outside, making it difficult to see from the outside, which not only eliminates the risk of damaging the appearance quality of the newly installed fittings, but also makes it less susceptible to external forces. . As a result, there is no fear that the drain valve 80 will fall off the newly installed lower frame base 12e or be damaged, and it becomes possible to ensure the above-mentioned drainage performance and improve the watertightness of the window device. In addition, although the drain valve 80 is configured to protrude from the lower surface of the second bottom wall portion 12e4, it is not provided continuously over the entire length. Therefore, even when connecting the newly installed lower frame 12 to the existing lower frame 42 with the drain valve 80 attached, the work of screwing together the auxiliary mounting screws 72 is not hindered, which makes the installation work complicated. There is no risk of inviting

In addition, in the embodiment mentioned above, although the fittings for renovation are illustrated, it is not necessarily limited to this, and it is possible to apply also to the fittings newly provided by using a building frame as an object to be attached. In this case, the fittings do not necessarily have to be intended for buildings, and may of course be used for ordinary houses. Furthermore, although double-sliding windows are shown as an example of a fitting, other fittings may also be used. The detailed structure of the lower frame 12 is not limited to that of the embodiment, but may be of any other shape as long as it has a lower frame base with a hollow part and a mounting plate part, and can be used as a new cover. There is no need for the plate portion 12g to be provided. Further, although the drain valves 80 are provided only at both ends of the lower frame 12, the number and positions of the drain valves 80 are not limited thereto. Further, although the drain valve 80 has a drain port 81b on the side surface facing the outside of the valve body 81, a drain valve having a drain port on the lower surface of the valve body may also be used.

As described above, the fitting according to the present invention has a lower frame base provided with a hollow portion, and has a mounting plate portion extending downward from the lower surface of the lower frame base, and the mounting plate portion is a fitting provided with a lower frame that is installed in a state where it is superimposed on the facing surface of the object to be attached, and the lower frame has a lower frame that is arranged outdoors than the mounting plate part on the lower surface of the base of the lower frame. It is characterized in that a drainage valve communicating with the hollow part is provided in the part in a state of projecting downward.
According to this invention, since the drain valve is provided on the lower surface of the lower frame base, a water head difference from the upper surface of the lower frame base can be secured, and drainage can be improved even under conditions of high outdoor pressure. It becomes possible to do so. Moreover, the drain valve disposed on the lower surface of the lower frame base not only eliminates the risk of degrading the appearance quality, but also becomes less susceptible to external forces. As a result, there is no risk of it falling off from the base of the lower frame or causing damage, and it becomes possible to ensure the above-mentioned drainage performance and improve the watertightness of the fittings.

Further, the present invention is characterized in that, in the above-mentioned fitting, the drain valve is provided at the bottom frame base so as to be located indoors more than the part of the bottom frame base that is located most outdoors. .
According to this invention, since the drain valve does not protrude outside beyond the base of the lower frame, it is more advantageous in terms of appearance quality and being less susceptible to external forces.

Further, the present invention is characterized in that, in the above-mentioned fitting, a cover plate portion is provided on the lower frame base so as to protrude from the bottom surface on which the drain valve is provided so as to extend outdoors.
According to this invention, since the diagonally upper region of the drain valve is covered by the protruding cover plate portion, it is more advantageous in terms of appearance quality and being less susceptible to external forces.

Further, the window device according to the present invention has an existing lower frame supported by a frame, a lower frame base provided with a hollow portion, and a mounting plate portion extending downward from the lower surface of the lower frame base. and a lower frame installed with the mounting plate portion superimposed on the facing surface of the existing lower frame, the lower frame having the The device is characterized in that a drain valve communicating with the hollow portion is provided in a portion disposed outside the room with respect to the mounting plate portion so as to protrude downward.
According to this invention, even when installing a lower frame for renovation on a building frame with an existing lower frame, since the drain valve is provided on the lower surface of the lower frame base, the water head difference from the upper surface of the lower frame base can be reduced. This makes it possible to drain water well even under conditions of high outdoor pressure. Moreover, the drain valve disposed on the lower surface of the lower frame base not only eliminates the risk of degrading the appearance quality, but also becomes less susceptible to external forces. As a result, there is no risk of it falling off from the base of the lower frame or causing damage, and it becomes possible to ensure the above-mentioned drainage performance and improve the watertightness of the fittings.

Further, the present invention is characterized in that, in the above-mentioned window device, a draining surface is provided at a portion of the frame below the drain valve, which slopes gradually downward toward the outdoors.
According to this invention, the drain valve can be placed using the gap between the lower surface of the lower frame base and the drainage surface of the frame.

12 New lower frame, 12e New lower frame base, 12f New mounting plate, 12g New cover plate, 12j Hollow part, 42 Existing lower frame, 52a Draining surface, 80 Drain valve, B Frame

Claims (5)

It has a lower frame base provided with a hollow part, and a mounting plate extending downward from the lower surface of the lower frame base, and the mounting plate is overlapped on the facing surface of the object to be attached. A fitting with a lower frame installed in
The lower frame is provided with a drain hole in a portion of the lower surface of the lower frame base that is located outside the mounting plate portion, and a drain valve is provided in a portion corresponding to the drain hole,
The drain valve includes a hollow valve body having a communication port on the top surface and a drain port on the side or bottom surface, and a plate-shaped valve body that opens and closes the drain port of the valve body, A fitting characterized in that the connecting port is installed in a state that projects downward from the lower surface of the lower frame base via the valve body while matching with the drain hole. 2. The fitting according to claim 1, wherein the drain valve is provided on the lower frame base so as to be located on the indoor side of the lower frame base than a portion of the lower frame base that is located most outdoors. 2. The fitting according to claim 1, wherein a cover plate portion is provided on the lower frame base so as to protrude from the lower surface on which the drain valve is provided. The existing lower frame supported by the frame,
It has a lower frame base provided with a hollow part, and has a mounting plate extending downward from the lower surface of the lower frame base, and the mounting plate is overlapped with the facing surface of the existing lower frame. A window device comprising: a lower frame installed in a state in which the window device is installed;
The lower frame is provided with a drain hole in a portion of the lower surface of the lower frame base that is located outside the mounting plate portion, and a drain valve is provided in a portion corresponding to the drain hole,
The drain valve includes a hollow valve body having a communication port on the top surface and a drain port on the side or bottom surface, and a plate-shaped valve body that opens and closes the drain port of the valve body, A window device, characterized in that the communication port is installed in such a manner that it matches the drain hole and protrudes downward from the lower surface of the lower frame base via the valve body. 5. The window device according to claim 4, wherein a portion of the frame below the drain valve is provided with a draining surface that slopes gradually downward toward the outdoors.

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