JP7530286B2 - Fittings - Google Patents

Description

The present invention relates to fittings that are placed in building openings.

Conventionally, a fitting has been known in which an inner and outer screen is placed on the inner periphery of a frame body made of aluminum frame material assembled on all four sides.

JP 2001-123762 A

The fixture described in Patent Document 1 has an airtight piece placed at the bottom end of the inner door joint frame, which seals the bottom of the joint; however, there is a possibility that water may enter the room through a small gap between the airtight piece and the joint frame due to the difference in air pressure between the inside and outside of the room.

The purpose of this invention is to improve the watertightness of the lower part of the joint in a fitting that has an inner and outer screen arranged around the inner periphery of a frame body.

The fittings in one embodiment comprise a frame body, and inner and outer screens arranged on the inner circumference of the frame body, the bottom frame of the inner screen has a drain hole formed in the glass opening, the inner screen joint frame has a glass opening on the inner circumference side of the hollow section, an airtight piece is fitted into the lower end of the hollow section, and an outside air inlet hole connecting the hollow section and the glass opening is provided on the inner side wall of the hollow section at a position higher than the upper end of the bottom frame, so that the glass opening and the joint spaces of the inner and outer screens are not connected, and the hollow section of the joint frame is connected to the outside air via the outside air inlet hole, the glass opening of the joint frame, the glass opening of the bottom frame and the drain hole.

The fittings of this embodiment can improve the watertightness of the lower part of the joint in fittings that have inner and outer screens arranged around the inner periphery of the frame.

FIG. 2 is an interior view of a fixture according to one embodiment. FIG. 2 is a vertical cross-sectional view of a fitting according to one embodiment. FIG. 2 is a cross-sectional view of a fitting according to one embodiment. These are diagrams of the lower position of the joint part of a fixture in one embodiment, where (a) is a diagram of the airtight piece attached to the lower end of the joint frame of an inner screen viewed from the outer periphery of the screen, (b) is a diagram viewed from the outside of the room, (c) is a diagram viewed from the inside of the room, and (d) is a diagram of the lower part of the joint frame viewed from the outer periphery. FIG. 1 is a diagram of the lower position of the joint of a building fixture in one embodiment, where (a) is a diagram of the lower part of the joint from the inside of the room, and (b) is an enlarged view of the joint frame and airtight piece from the inside of the room. FIG. 1 is a diagram of the lower position of the joint of a building fixture in one embodiment, where (a) is a diagram of the lower part of the joint from the inside of the room, and (b) is an enlarged view of the joint frame and airtight piece from the inside of the room.

One embodiment of the fixture will be explained with reference to the drawings, using the example of a sliding window, which consists of a frame 1 attached to the inner circumference of a building opening and an inner screen 2 and an outer screen 3 that can be slid freely.

As shown in FIG. 1, the fixture of this embodiment comprises a frame body 1 formed by assembling an upper frame 11, a lower frame 12, and left and right vertical frames 13, 14 all around, all of which are made of a metal material such as an aluminum alloy; and upper frames 21, 31, lower frames 22, 32, and left and right vertical frames 23, 24, 33, 34 all of which are made of a metal material such as an aluminum alloy and assembled on all four sides. A panel body is fitted to the inner circumference of the frame body 1, and the inner and outer screens 2, 3 are arranged to be freely slidable on the inner circumference of the frame body 1.

-Frame-
As shown in Figure 2, the upper frame 11 that constitutes the frame body 1 has a projection wall 11a that is arranged on the inner surface of the building opening, an indoor side wall 11b that is continuous with the indoor side end of the projection wall 11a and extends in the visual direction, an outdoor side wall 11c that is continuous with the outdoor side end of the projection wall 11a and extends in the visual direction, a central wall 11d that extends downward from near the center in the visual direction of the inner surface of the projection wall 11a, and an outer upper rail 11e that extends downward from a position between the central wall 11d and the outdoor side wall 11c on the inner surface of the projection wall 11a.

The upper frame 11 has airtight materials s111 and s112 arranged on the indoor side wall 11b and the outdoor side surface below the central wall 11d, respectively.
The airtight material s111 held on the indoor side wall 11b abuts or is close to the indoor side of the upper frame 21 of the inner screen 2, and the airtight material s112 held on the central wall 11d abuts or is close to the indoor side of the upper frame 31 of the outer screen 3, each forming an airtight line.

As shown in FIG. 2, the lower frame 12 constituting the frame body 1 has a bottom wall 12a arranged on the inner periphery of the building opening, a hollow indoor side standing part 12b erected on the indoor side of the bottom wall 12a, an indoor side wall 12c extending upward from the indoor side end of the indoor side standing part 12b, an outdoor side wall 12d extending upward from the outdoor side end of the bottom wall 12a, an inner lower rail 12e extending upward from the outdoor side inner periphery of the indoor side standing part 12b, an airtight material retaining piece 12f extending from the outdoor side of the indoor side standing part 12b toward the outside, and an outer lower rail 12g extending upward from the outdoor side inner periphery of the bottom wall 12a.

The lower frame 12 has airtight materials s121, s122 arranged on the exterior surface above the interior side wall 12c and on the exterior end of the airtight material retaining piece 12f, respectively.
The airtight material s121 held on the indoor side wall 12c abuts or is close to the bottom frame 22 of the inner screen 2, and the airtight material s122 held on the airtight material holding piece 12f abuts or is close to the indoor side surface of the bottom frame 32 of the outer screen 3, each forming an airtight line.

As shown in FIG. 3, the left vertical frame 13 that constitutes the frame body 1 has a projection wall 13a that is arranged on the inner periphery of the building opening, an indoor side wall 13b that extends in the visible direction contiguous with the indoor side end of the projection wall 13a, an outdoor side wall 13c that extends in the visible direction contiguous with the outdoor side end of the projection wall 13a, a central wall 13d that extends in the inward direction from near the center of the projection direction on the inner periphery of the projection wall 13a, and a pull-in piece 13e that extends in the inward direction from a position between the central wall 13d and the outdoor side wall 13c on the inner periphery of the projection wall 13a.

The left vertical frame 13 has airtight material s13 arranged on the outer surface of the central wall 13d, and when the outer screen 3 is closed, the airtight material s13 abuts against the indoor side of the left vertical frame 33 to form an airtight line.

As shown in FIG. 3, the right vertical frame 14 that constitutes the frame body 1 has a projection wall 14a that is arranged on the inner periphery of the building opening, an indoor side wall 14b that extends in the visible direction contiguous with the indoor side end of the projection wall 14a, an outdoor side wall 14c that extends in the visible direction contiguous with the outdoor side end of the projection wall 14a, a central wall 14d that extends in the inward direction from near the center of the projection direction on the inner periphery of the projection wall 14a, and a pull-in piece 14e that extends in the inward direction from a position between the indoor side wall 13b and the central wall 14d on the inner periphery of the projection wall 14a.

The right vertical frame 14 has airtight material s14 placed on the outer surface of the indoor side wall 14b, and the airtight material s14 abuts against the indoor side surface of the right vertical frame 24 of the inner screen 2 to form an airtight line.

-Inner Shoji Screen-
As shown in Figure 2, the upper frame 21 that constitutes the inner shoji 2 has a hollow frame main body 21a, an outdoor side wall 21b extending downward from the outdoor side end of the upper frame main body 21a, a projected wall portion 21c extending from the indoor side of the upper frame main body 21a to the indoor side, an indoor side wall 21d extending downward from the indoor side end of the projected wall portion 21c, and a guide portion 21e formed on the outer periphery (upper) of the upper frame main body 21a and guided into the groove between the indoor side wall 11b and the central wall 11d of the upper frame 11.
The upper frame 21 has a glass opening 21g formed between the indoor side wall 21d and the outdoor side wall 21b.

As shown in FIG. 2, the lower frame 22 that constitutes the inner shoji screen 2 has a lower frame main body 22a with multiple hollow sections, an indoor side wall 22b that extends upward from the indoor side of the lower frame main body 22a, an outdoor side wall 22c that extends upward from the outdoor side of the lower frame main body 22a, and a rail guide section 22d that continues below the lower frame main body 22a, and a door roller 92 is arranged from the lower frame main body 22a to the rail guide section 22d.

The lower frame 22 has a glass opening 22g formed between the indoor side wall 22b and the outdoor side wall 22c, and a drainage hole 22h is formed in the bottom wall of the glass opening 22g to drain water w0 that has entered the glass opening 22g to the outside, as shown in Figure 4 (d).
The glass openings of the upper frame 21, lower frame 22 and left and right vertical frames 23, 24 that form the inner shoji 2 are connected, and water that enters the glass openings of each frame is collected in the glass opening 22g of the lower frame 22 and drained to the outside through the drainage hole 22h.

As shown in Figure 3, the left vertical frame (joint frame) 23 that constitutes the inner sash 2 has an exterior hollow section 23a with a roughly rectangular cross section located above the inner lower rail 12e, an interior hollow section 23b with a roughly L-shaped cross section that is connected to the interior side of the exterior hollow section 23a, and an exterior wall 23c that extends inward from the exterior side of the exterior hollow section 23a.

The left vertical frame 23 has a glass opening 23g formed between the exterior wall 23c and the interior hollow portion 23b. The left vertical frame 23 also has a smoke deflector formed on its exterior surface, and an airtight material s23 is arranged on the outer periphery of the exterior surface, which abuts against the interior side of the left vertical frame (joint frame) 34 of the exterior screen 2 to form an airtight line.

As shown in Figure 3, the right vertical frame (door end frame) 24 that constitutes the inner shoji 2 has a right vertical frame main body 24a with a hollow portion, a projection wall 24b extending from the indoor side of the right vertical frame main body 24a toward the indoor side, an indoor side wall 24c extending inwardly from the indoor side end of the projection wall 24b, an outdoor side wall 24d extending inwardly from the outdoor side of the right vertical frame main body 24a, and a door end groove portion 24e that continues to the outer periphery of the right vertical frame main body 24a.
The right vertical frame 24 has a glass opening 24g formed between the indoor side wall 24c and the outdoor side wall 24d.

-Outer Shoji Screen-
As shown in Figure 2, the upper frame 31 that constitutes the outer shoji 3 has a hollow frame main body 31a, an indoor side wall 31b extending downward from the indoor side end of the upper frame main body 31a, a projected wall portion 31c extending from the outdoor side of the upper frame main body 31a to the outdoor side, an outdoor side wall 31d extending downward from the outdoor side end of the projected wall portion 31c, and a guide portion 31e formed on the outer periphery (upper) of the upper frame main body 31a and guided by the outer upper rail 11e.
The upper frame 31 has a glass opening 31g formed between the indoor side wall 31b and the outdoor side wall 31d.

As shown in FIG. 2, the lower frame 32 that constitutes the outer shoji screen 3 has a lower frame main body 32a with multiple hollow portions, an indoor side wall 32b that extends upward from the indoor side of the lower frame main body 32a, an outdoor side wall 32c that extends upward from the outdoor side of the lower frame main body 32a, and a rail guide portion 32d that continues below the lower frame main body 32a, and a door roller 93 is arranged from the lower frame main body 32a to the rail guide portion 32d.

The lower frame 32 has a glass opening 32g formed between the indoor side wall 32b and the outdoor side wall 32c.
Similar to the inner screen 2, a drainage hole (not shown) is formed in the bottom wall of the glass opening 32g of the outer screen 3, and water that penetrates into the glass opening of each frame of the outer screen 3 is collected in the glass opening 32g of the lower frame 32 and drained to the outside through the drainage hole.

As shown in Figure 3, the left vertical frame (door end frame) 33 that constitutes the outer shoji 3 has a left vertical frame main body 33a with a hollow portion, an indoor side wall 33b extending inwardly from the indoor side of the left vertical frame main body 33a, a projected wall portion 33c extending inwardly from the outdoor side of the left vertical frame main body 33a, an outdoor side wall 33d extending inwardly from the outdoor side end of the projected wall portion 33c, and a door end groove portion 33e that continues to the outer periphery of the left vertical frame main body 33a.
The left vertical frame 33 has a glass opening 33g formed between the indoor side wall 33b and the outdoor side wall 33d.

As shown in Figure 3, the right vertical frame (joint frame) 34 that constitutes the outer shoji 3 has a right vertical frame main body 34a with a hollow portion, an indoor side wall 34b extending inwardly from the indoor side of the right vertical frame main body 34a, a projected wall portion 34c extending from the indoor side inner peripheral end of the right vertical frame main body 34a to the outdoor side, and an outdoor side wall 34d extending inwardly from the indoor side end of the projected wall portion 34c.
The right vertical frame 34 has a glass opening 34g between the indoor side wall 34b and the outdoor side wall 34d. The right vertical frame 34 also has a smoke deflector on the indoor side.

-Airtightness of the lower part of the joint-
In the building fixture of this embodiment, airtight lines are formed between the frame body 1 and the inner and outer screens 2, 3 by arranging airtight material that abuts the frames of the inner and outer screens 2, 3 on each frame body that makes up the frame body 1, and by attaching an airtight piece 8 to the lower end of the joint frame (left vertical frame) 23 of the inner screen 2, the airtight lines of the inner and outer screens 2, 3 are made continuous at the lower part of the joint.

The airtight piece 8 is made of a resin material, and as shown in Figs. 4(a), (b), (c), and (d), has a block-shaped mounting body 81 with a guide groove 81a that guides the inner lower rail 12e, an indoor lower airtight piece 84 provided on the indoor lower surface of the mounting body 81, an outdoor lower airtight piece 83 provided on the outdoor lower surface of the mounting body 81, and an outdoor airtight piece 82 that continues to the outdoor side of the mounting body 81 via a connecting portion 82a and extends above the mounting body 81.

The outdoor airtight piece 82, the outdoor lower airtight piece 83, and the indoor lower airtight piece 84 of the airtight piece 8 are formed from one or more fin pieces, and the outdoor airtight piece 82 and the outdoor lower airtight piece 83 may be integrally continuous.

The airtight piece 8 is attached to the lower end of the left vertical frame 23 by inserting the mounting body 81 from below into the outdoor hollow portion 23a of the left vertical frame 23.

The airtight piece 8 attached to the lower end of the left vertical frame 23 is arranged so that the indoor lower airtight piece 84 and the outdoor lower airtight piece 83 extend downward from the lower end face of the left vertical frame 23, and the outdoor airtight piece 82 extends from the outdoor side face of the left vertical frame 23 toward the outside, as shown in Figures 4(d) and (e).

On the upper surface of the lower frame 12, below the left vertical frame 23 of the inner sash 2, an indoor airtight part 85 and an outdoor airtight part 86 are arranged on the indoor and outdoor sides of the inner lower rail 12e, respectively. The indoor lower airtight piece 84 and the indoor airtight part 85 of the airtight piece 8 provide an airtight seal between the underside of the left vertical frame 23 on the indoor side of the inner lower rail 12e and the lower frame 12, and the outdoor lower airtight piece 83 and the outdoor airtight part 86 provide an airtight seal between the underside of the left vertical frame 23 on the outdoor side of the inner lower rail 12e and the lower frame 12.

The outdoor airtight piece 82 of the airtight piece 8 is adjacent to the airtight material s23 arranged on the left vertical frame 23 of the inner screen 2, and both abut against the indoor side of the right vertical frame 34 of the outer screen 3, forming an airtight line between the outdoor side of the left vertical frame 23 of the inner screen 2 and the indoor side of the right vertical frame 34 of the outer screen 3, and is continuous with the airtight line between the frame body 1 and the inner screen 2 by the airtight material s121 of the bottom frame 12 and the airtight line between the frame body 1 and the outer screen 3 by the airtight material s122 of the bottom frame 12.

- Outside air intake -
As described above, the fittings of this embodiment seal the space between the underside of the inner screen 2 and the bottom frame 12 (the outside of the room) and the space inside the room by attaching an airtight piece 8 to the lower end of the left vertical frame 23 of the inner screen 2, thereby creating a continuous airtight line between the inside and outside. However, due to the difference in air pressure between the inside and outside of the room, water may enter through the lower part of the joint that seals between the space outside the room and the space inside the room.

For example, as shown in FIG. 5(a), when the air pressure P1 inside the room is lower than the air pressure P3 outside the room, air may enter through a small gap that occurs at the fitting between the airtight piece 8 and the outside hollow portion 23a of the left vertical frame 23 of the inner screen 2, resulting in a relationship of P1 < P2 < P3 between the air pressure P1 inside the room, the air pressure P2 inside the outside hollow portion 23a of the left vertical frame 23, and the air pressure P3 outside the room.

At this time, if water w0 that has entered the glass opening of the inner screen 2 and collected in the glass opening 22g of the bottom frame 22 passes through the drainage hole 22h of the bottom frame 22 and accumulates on the top surface of the bottom frame 12, as shown in Figure 5 (b), due to factors such as the pressure difference between the air pressure P2 inside the outdoor hollow part 23a of the left vertical frame 23 and the air pressure P3 outside, the water w1 that has accumulated on the top surface of the bottom frame 12 may enter the interior of the outdoor hollow part 23a of the left vertical frame 23 through the gap between the fitting part of the outdoor hollow part 23a of the left vertical frame 23 and the airtight piece 8, and then enter the room through the gap between the fitting part of the outdoor hollow part 23a of the left vertical frame 23 and the airtight piece 8.

The fittings of this embodiment therefore prevent water from entering the room through the lower part of the joint by making the air pressure P2 in the outdoor hollow portion 23a of the left vertical frame 23 approximately the same as the outdoor air pressure P3.

Specifically, as shown in Figures 2 and 6(a), the left vertical frame 23, which is the joint frame of the inner sash 2 of the fitting of this embodiment, has an outside air introduction hole 23h on the inner peripheral side wall 23d of the outdoor hollow portion 23a, which is connected to the glass opening 23g at a position higher than the upper end of the lower frame 22. Note that the outside air introduction hole 23h is an outside air introduction hole formed on the inner peripheral surface of the outdoor hollow portion 23a of the left vertical frame 23 into which the airtight piece 8 is inserted, and no communication hole that directly communicates with the outside air is formed other than on the inner peripheral surface of the outdoor hollow portion 23a of the left vertical frame 23.

The fittings of this embodiment have an outside air introduction hole 23h in the inner peripheral side wall 23d of the outdoor hollow portion 23a of the left vertical frame 23 so as to communicate with the glass opening 23g. This forms an outside air introduction path R that connects the outdoor hollow portion 23a of the left vertical frame 23 to the outside air through the outside air introduction hole 23h, the glass opening 23g of the left vertical frame 23, the glass opening 22g of the bottom frame 22, and the drain hole 22h, making the air pressure inside the outdoor hollow portion 23a approximately the same as the outdoor air pressure P3.

-Effects of the fittings of this embodiment-
In the building fixture of this embodiment, outside air is introduced into the outdoor hollow portion 23a of the left vertical frame (joint frame) 23 through the drainage hole 22h of the bottom frame 22, the glass opening 22g of the bottom frame 22, and the glass opening 23g of the left vertical frame (joint frame) 23 via the outdoor air inlet hole 23h. Therefore, as shown in Figure 6 (b), the air flow F caused by the air pressure difference between the inside and outside of the room does not create a large pressure difference between the pressure P2 inside the outdoor hollow portion 23a and the air pressure P3 outside. This prevents water w1 from being sucked into the outdoor hollow portion 23a through the small gap between the airtight piece 8 and the outdoor hollow portion 23a, and suppresses the intrusion of water into the room through the outdoor hollow portion 23a.

In addition, by forming only an outside air inlet hole 23h that connects to the glass opening 23g, rather than forming an outside air inlet hole that directly connects to the outside air, in the outdoor hollow portion 23a of the left vertical frame (joint frame) 23, it is possible to prevent water from entering from the outside through the outside air inlet hole.

Furthermore, by locating the outside air inlet hole 23h on the inner side wall of the outdoor hollow portion 23a at a position higher than the upper end of the lower frame 22, it is possible to prevent splashes and the like from entering the outdoor hollow portion 23a of the left vertical frame (joint frame) 23 as outside air flows into the outdoor hollow portion 23a, and to prevent water that has entered through the drainage hole 22h or between the glass and the glass opening from entering the left vertical frame (joint frame) 23 through the outside air inlet hole 23h and entering the room.
The number of outside air introduction holes provided in the inner peripheral side wall (inner peripheral surface) of the outdoor hollow portion 23a does not have to be one.

The fixtures to which the present invention can be applied are not limited to sliding windows, but may also be single-sliding windows in which either the inner or outer screen is fixed to the frame, and the type of window is not limited.
In addition, it goes without saying that the above embodiments do not limit the invention described in the claims, but are to be treated as examples.

12: Bottom frame 22: Bottom frame 22g: Glass opening 22h: Drainage hole 23: Left vertical frame (joint frame)
23a: Outdoor hollow part (hollow part)
23d: Inner peripheral side wall 23g: Glass opening 23h: Outside air introduction hole 8: Airtight piece

Claims (1)

The door is provided with a frame body and inner and outer screens arranged on the inner periphery of the frame body.
The bottom frame of the inner shoji screen has a drain hole at the glass opening.
The inner door frame has a glass opening on the inner periphery of the hollow part, an airtight piece is fitted into the lower end of the hollow part, and an outside air inlet connecting the hollow part and the glass opening is provided on the inner periphery wall of the hollow part at a position higher than the upper end of the lower frame.
The glass frontage and the space between the inner and outer shoji screens are not connected.
The hollow part of the joint frame is a fixture that communicates with the outside air through the outside air inlet hole, the glass opening of the joint frame, the glass opening of the lower frame, and the drainage hole.

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