JP7542394B2 - Fittings - Google Patents

Description

The present invention relates to a fitting that has a ventilation path that connects the inside and outside of a room.

The indoor environment of the building was controlled by air conditioning equipment, but a lot of heat entered and exited through the windows, which increased electricity bills, so windows that could help reduce electricity bills were needed.

In light of the above-mentioned circumstances, the present invention aims to provide a fixture that can provide ventilation 24 hours a day.

In order to achieve the above-mentioned object, the building fixture according to the invention described in claim 1 is provided with a ventilation frame, the ventilation frame has a ventilation path connecting the inside and outside of the room, and a cover material is provided on the outside of the room, the cover material has a visible wall and a concealed wall provided in the visible wall , a ventilation hole facing the outside of the room is provided in the concealed wall, and the cover material can be freely rotated to the outside of the room around a hinge portion provided at the upper end of the concealed wall as a fulcrum.

The fitting according to the invention described in claim 1 is equipped with a ventilation frame, and the ventilation frame has a ventilation path that connects the inside and outside of the room, so that ventilation can be performed 24 hours a day through the ventilation path, which contributes to reducing electricity costs for air conditioning equipment. Moreover, the ventilation frame has a cover material on the outside of the room, and the cover material has a visible wall and a concealed wall provided on the visible wall , and a vent facing the outside is provided in the concealed wall, and since it can be freely rotated to the outside of the room using a hinge part provided at the upper end of the concealed wall as a fulcrum, maintenance of the inside of the ventilation frame can be performed by rotating the cover material to the outside of the room using the hinge part as a fulcrum, and the cover material will not fall off during maintenance.

3 is an enlarged vertical cross-sectional view showing a portion of the upper frame side of the exterior window of the fitting shown in FIG. 2. FIG. FIG. 1 is a vertical cross-sectional view showing one embodiment of the fitting of the present invention. FIG. FIG. 2 is a view taken along the arrow A in FIG. FIG. 2 is a view taken along the arrow B in FIG. 1A is a side view of the ventilation frame body, FIG. 1B is an exterior side view of the ventilation frame body, and FIG. 1C is an interior side view of the ventilation frame body. This is an enlarged vertical cross-sectional view of the upper frame side portion of the outer window, showing the state when the heated foam material foams in the event of a fire. FIG. 11 is a vertical cross-sectional view showing another embodiment of the fitting of the present invention.

The following describes an embodiment of the present invention with reference to the drawings. Figures 1 to 3 show one embodiment of the fitting of the present invention. As shown in Figures 2 and 3, this fitting is applied to a double-glazed window consisting of an outer window 13 and an inner window 14.

As shown in Figures 2 and 3, the exterior window 13 is equipped with a frame 18 consisting of an upper frame 15, a lower frame 16, and left and right vertical frames 17, 17 made of aluminum shaped material, an outer screen 19a and an inner screen 19b that are slidably arranged along the upper and lower frames 15, 16, and a ventilation frame 1 that is arranged on the outer periphery of the upper frame 15. The frame 18 is made from the frame of a typical sliding sash for buildings. As shown in Figures 1 and 2, the ventilation frame 1 has a ventilation path 2 that connects from the outside to the inside of the room (the intermediate layer 20 between the exterior window and the interior window).

The ventilation frame 1 consists only of a horizontal frame, and as shown in FIG. 1, has a ventilation frame body 21, an exterior cover material (cover material) 3 attached to the exterior side of the ventilation frame body 21, and an interior cover material 22 attached to the interior side of the ventilation frame body 21. The ventilation frame 1 has an exterior space 23 formed by the exterior cover material 3 on the exterior side, an intermediate space 24 formed by the ventilation frame body 21 in the middle in the indoor/outdoor direction, and an interior space 25 formed by the interior cover material 22 on the interior side. The ventilation frame body 21, the exterior cover material 3, and the interior cover material 22 are each long materials formed from aluminum shaped materials. Side panels 26 are attached to both longitudinal ends of the ventilation frame 1.

As shown in Fig. 1, the outdoor covering material 3 has a front wall 4 and a front wall 5, and the front wall 5 is provided at a position 15 mm above the lower end of the front wall 4. The front wall 5 is provided with ventilation holes 6a that communicate with the outside and open toward the inner periphery. As shown in Fig. 4, the ventilation holes 6a are substantially rectangular long holes, and multiple ventilation holes 6a are formed at intervals in the longitudinal direction. The ventilation holes 6a are made as large as possible in the front direction, and the intervals between the ventilation holes 6a are made shorter than the left-right dimensions of the ventilation holes 6a, so that the ventilation holes 6a occupy more than half of the area of the front wall 5. Even if the ventilation holes 6a are formed large in the front wall 5, the front wall 4 hangs down on the outdoor side of the ventilation holes 6a as shown in Fig. 1, preventing rainwater from entering through the ventilation holes 6a.
An insect screen 27 is attached to the upper surface of the projection wall 5 to prevent insects from entering through the ventilation opening 6a. The insect screen 27 is made of stainless steel wire mesh, and both ends in the indoor/outdoor direction are attached by engaging with grooves 28 formed facing each other on the upper surface of the projection wall 5. Both left and right ends of the projection wall 5 are screwed from below to metal fittings 29 attached to the side panels 26 with screws 32.
A fitting groove 30 having a generally C-shaped cross section is formed on the indoor side of the upper end of the visible wall 4, and the hinge portion 7 is formed by fitting this fitting groove 30 from the outside of the room onto a shaft portion 31 formed on the outside of the room of the vent frame main body 21. When the screws 32 are removed, the outside-door covering material 3 becomes freely rotatable to the outside of the room with the hinge portion 7 as a fulcrum, as shown by the imaginary line in Figure 1.

As shown in Fig. 1, the ventilation frame body 21 has an intermediate space 24 formed by the upper wall 33, the lower wall 34, the exterior facing wall 10, and the interior facing wall 11. A large ventilation hole 6b is formed in the exterior facing wall 10. As shown in Fig. 6(b), the ventilation holes 6b are substantially rectangular long holes, and are formed at intervals in the longitudinal direction. The ventilation holes 6b are made as large as possible in the vertical direction, and the intervals between the ventilation holes 6b are made shorter than the left-right dimensions of the ventilation holes 6b, so that the ventilation holes 6b occupy most of the area of the facing wall 10. An insect screen 27 can also be attached to the exterior side of the exterior facing wall 10.
As shown in FIG. 1, a water-repelling piece 36 that protrudes toward the outside of the room is provided at a position adjacent to the lower side of the air vent 6b, and the water-repelling piece 36 prevents rainwater from entering the air vent 6b.
As shown in Figures 1 and 6(c), a plurality of narrow, elongated ventilation holes 6c are formed at intervals in the longitudinal direction in the interior wall 11 of the room. The ventilation holes 6c in the interior wall 11 of the room are smaller than the ventilation holes 6b in the exterior wall 10 of the room. Therefore, the total area of the ventilation holes 6c in the interior wall 11 of the room is smaller than the total area of the ventilation holes 6b in the exterior wall 10 of the room.
The lower wall 34 is provided with an inclined surface 37 that is inclined so that the outdoor side is lower.

As described above, the ventilation frame 1 has large ventilation holes 6a and 6b formed in the front wall 5 of the exterior cover material 3 and the exterior facing wall 10 of the ventilation frame body 21, and a small ventilation hole 6c formed in the interior facing wall 11 of the ventilation frame body 21, so that the exterior space 23 and the intermediate space 24 are at the same pressure as the outside air. This prevents rainwater from being sucked into the ventilation path 2 due to the difference in pressure between the inside and outside, and even if some rainwater seeps in through the ventilation holes 6a and 6b, it is quickly drained from the exterior ventilation hole 6a. The air pressure in the interior space 25 is close to that inside the room.

As shown in Figure 1, the upper wall 33 protrudes further to the outside than the exterior-side visible wall 10, and the protruding portion is inclined so that the exterior side is lower, with the tip curved downward. The shaft portion 31 to which the exterior cover material 3 is connected is provided spaced below the upper wall 33, and the tip of the upper wall 33 forms a awning 38 that covers the hinge portion 7. This prevents rainwater from entering through the hinge portion 7.
The upper wall 33 has a protruding piece 39 protruding toward the outer periphery at a middle position in the indoor/outdoor direction, and has a locking portion 41 of an anchor 40 on the indoor side, and the ventilated frame 1 is fixed to a frame 42 by the anchor 40 locked to the locking portion 41. The gap between the ventilated frame main body 21 and the frame 42 is sealed by filling a sealant 43 from the outside of the room.
A hollow protrusion 44 is formed on the underside of the ventilation frame body 21 near the indoor side, and the underside of the protrusion 44 has an engagement piece 46 that engages with the anchor engagement part 45 of the upper frame 15 and a screw fastening piece 47 for screwing the upper frame 15. The ventilation frame body 21 is connected to the upper frame 15 by engaging the engagement piece 46 with the anchor engagement part 45 of the upper frame 15, screwing the protrusion piece 48 of the upper frame 15 to the outdoor side wall of the protrusion 44 with a screw 49 from the outdoor side, and screwing the screw fastening piece 47 to the upper frame 15 with a screw 50 from the indoor side. The gap between the upper frame 15 and the ventilation frame body 21 is sealed by filling it with a sealant 51 from the outdoor side, and the sealant 51 is located inside the room with respect to the outdoor side vent 6a. The filling operation of the sealing material 51 can be carried out in a state in which the outdoor cover material 3 has been rotated to the outdoor side with the hinge portion 7 as a fulcrum, as shown by the two-dot chain line in the figure.

As shown in FIG. 1, the indoor cover material 22 is formed into a hollow rectangular cross section by combining two members 22a and 22b with a substantially L-shaped cross section, and the ventilation hole 6d is formed in the visible wall 52 of the outdoor member 22a, communicating with the ventilation hole 6c of the ventilation frame body 21. The visible wall 8 of the outdoor member 22a and the visible wall 9 of the resin cover 53 attached below it are provided with ventilation holes 6e and 6f that open downward. As shown in FIG. 5, the ventilation holes 6e and 6f are small slit-shaped and are formed in large numbers at intervals in the longitudinal direction. Between the upper and lower ventilation holes 6e and 6f, as shown in FIG. 1 and 5, there is a shutter plate 55 that can be slid left and right by operating the knob 54 to open and close the ventilation holes 6e and 6f, and a filter 75 that prevents the intrusion of dust, pollen, etc.

As shown in FIG. 1, a plate-shaped air straightener 56 is attached to the indoor side of the indoor cover material 22 with a knob bolt 57 attached from the indoor side so that it can be freely attached and detached. The lower part of the air straightener 56 is slightly bent toward the outdoor side, so that the air flowing out from the indoor vent 6f can be bent toward the outdoor side and guided along the glass surfaces of the shoji screens 19a and 19b of the exterior window 13.

As described above, the ventilation frame 1 has a ventilation path 2 connecting the inside and outside of the room formed in a curved U-shape by the ventilation opening 6a provided in the visible wall 5 of the outdoor covering material 3, the ventilation openings 6b, 6c provided in the outdoor and indoor facing walls 10, 11 of the ventilation frame main body 21, the ventilation opening 6d provided in the visible wall 52 of the indoor covering material 22, and the ventilation openings 6e, 6f provided in the visible walls 8, 9 of the indoor covering material 22 and the resin cover 53 (see Figure 1).
Making the ventilation path 2 into a curved U-shape in this manner is itself effective in preventing rainwater from entering, but this ventilation frame 1 more reliably prevents rainwater from entering by extending the visible wall 4 of the exterior cover material 3 downwardly below the visible wall 5 in which the ventilation opening 6a is provided, and by providing a water-repelling piece 36 that protrudes to the outside, adjacent to the bottom of the ventilation opening 6b formed in the exterior-side visible wall 10 of the ventilation frame main body 21.
Furthermore, in this ventilation frame 1, the total area of the ventilation openings 6c in the visible wall 11 on the indoor side of the ventilation frame body 21 is made smaller than the total area of the ventilation openings 6b in the visible wall 10 on the outdoor side. This reduces the pressure difference between the outdoor space 23 and the outside of the intermediate space 24, preventing rainwater from being sucked into the ventilation path 2 due to the inside-outside pressure difference. Even if rainwater enters the ventilation path 2 during stormy weather, it is drained from the outside ventilation opening 6a.

As shown in Fig. 1, the ventilation frame 1 has a heated foaming material 12a that foams and expands due to the heat of a fire, which is provided over the entire length of the longitudinal direction at a position adjacent to the upper side of the concealed wall 5 on the indoor side of the concealed wall 4 of the outdoor-side cover material 3. Furthermore, a heated foaming material 12b is provided over the entire length of the longitudinal direction on the upper surface of the water return piece 36 of the ventilation frame body 21, adjacent to the outdoor side of the ventilation opening 6b of the concealed wall 10. In the event of a fire, as shown in Fig. 7, these heated foaming materials 12a, 12b foam and expand to fill the outdoor space 23, and the vent openings 6a, 6b located near the outdoor side are blocked by the foamed and expanded heated foaming materials 12a, 12b. When pressed by the heated foaming material 12a, a part of the heated foaming material 12b enters the intermediate space 24 through the ventilation opening 6b.
In addition, a heated foaming material 12c is provided on the upper surface of the concealed wall 8 of the indoor-side cover material 22, adjacent to the outdoor side of the vent 6e, over the entire length in the longitudinal direction. In the event of a fire, as shown in Fig. 7, this heated foaming material 12c foams and expands to fill the indoor space 25, and the vents 6d and 6e located closer to the indoor side are blocked by the foamed and expanded heated foaming material 12c. Then, the vents 6a and 6b located closer to the outdoor side in the ventilation path 2 and the vents 6d and 6e located closer to the indoor side are blocked by the heated foaming materials 12a, 12b, and 12c, thereby preventing the communication of flames and smoke from the ventilation path 2 and preventing the spread of fire.

In the above-described embodiment, heated foam materials 12a, 12b are provided in two locations within the outdoor space 23 of the ventilation frame 1 so that in the event of a fire, both the ventilation opening 6a in the front wall 5 and the ventilation opening 6b in the visible wall 10 are blocked; however, it is also possible to provide a heated foam material in only one location within the outdoor space 23 so that only one of the ventilation opening 6a in the front wall 5 and the ventilation opening 6b in the visible wall 10 is blocked.
In the above embodiment, the heated foaming materials 12a, 12b, and 12c are provided in both the outdoor space 23 and the indoor space 25 of the ventilation frame 1, but the heated foaming material may be provided only in either the outdoor space 23 or the indoor space 25. Even in this case, in the event of a fire, either the outdoor space 23 or the indoor space 25 is filled with the foamed heated foaming material, thereby preventing the passage of flames and smoke from the ventilation path 2.
Furthermore, if the heated foaming materials 12a, 12b, and 12c are provided in both the outdoor space 23 and the indoor space 25 of the ventilation frame 1 as in the embodiment, when a fire occurs on the outdoor side, the heated foaming materials 12a and 12b on the outdoor side will quickly foam to fill the outdoor space 23, and when a fire occurs on the indoor side, the heated foaming material 12c on the indoor side will quickly foam to fill the indoor space 25.Therefore, in either case when a fire occurs on the outdoor side or the indoor side, the ventilation path 2 can be blocked at an early stage when a fire occurs, and the communication of flames and smoke can be reliably prevented.

In addition, the outdoor cover material 3 of this ventilation frame 1 can be rotated to the outdoor side around the hinge portion 7 provided at the top of the visible wall 4 as a fulcrum, and by rotating the outdoor cover material 3 to the outdoor side, maintenance inside the ventilation frame 1, such as replacing the insect screen 27, can be easily performed. Furthermore, by rotating the outdoor cover material 3 to the outdoor side, the work of filling the gap between the ventilation frame main body 21 and the upper frame 15 with the sealant 51 can also be easily performed. Because the outdoor cover material 3 is connected to the ventilation frame main body 21 at the hinge portion 7, the outdoor cover material 3 will not fall off when performing the above-mentioned maintenance work on the ventilation frame 1 or the sealing work between the ventilation frame main body 21 and the upper frame 15, and workability is good.

Figure 8 shows another embodiment of the ventilation frame 1. The exterior cover material 3 is inclined so that the exterior side of the projection wall 5 is higher. By inclining the projection wall 5 in this way, when rainwater seeps in through the ventilation opening 6a of the projection wall 5, it flows down without accumulating on the projection wall 5, improving drainage.

As described above, this fitting comprises a ventilation frame 1, which has a ventilation path 2 that connects the inside and outside of the room, and therefore ventilation can be performed 24 hours a day through the ventilation path 2, which can contribute to reducing electricity costs for air conditioning equipment. Moreover, the ventilation frame 1 has a cover material 3 on the outside of the room, which has a front wall 4 and a front wall 5, and the front wall 5 has a ventilation port 6a facing the outside of the room, and can be rotated to the outside of the room using a hinge portion 7 provided at the upper end of the front wall 4 as a fulcrum, so that maintenance of the inside of the ventilation frame 1 can be performed by rotating the cover material 3 to the outside of the room using the hinge portion 7 as a fulcrum, and the cover material 3 will not fall off during the maintenance.
The ventilation frame 1 has a eaves 38 covering the hinge portion 7, so that rainwater can be prevented from entering through the hinge portion 7.
Furthermore, since the lower part of the front wall 4 protrudes downwardly from the front wall 5, the cover material 3 can prevent rainwater from entering through the ventilation hole 6a in the front wall 5.

This fitting also comprises a frame (ventilation frame) 1, which has a concealed wall 5 provided on the outside of the room, concealed walls 8, 9 provided on the inside of the room, and visible walls 10, 11, 52 located on the outer periphery of the concealed walls 5, 8, 9 on the outside and inside of the room, and a number of ventilation openings 6a, 6b, 6c, 6d, 6e, 6f are provided in these concealed walls 5, 8, 9 and the visible walls 10, 11, 52 at intervals along the longitudinal direction of the frame 1, and these ventilation openings form a ventilation path 2 connecting the inside and outside of the room in a bent U-shape, so that ventilation can be performed 24 hours a day through the ventilation path 2, which contributes to reducing electricity costs for air conditioning equipment.
The visible walls 10, 11 are provided at intervals in the indoor and outdoor directions, and the total area of the ventilation openings 6c in the visible wall 11 on the indoor side is made smaller than the total area of the ventilation openings 6b in the visible wall 10 on the outdoor side. This makes the pressure difference between the outside and the inside of the outdoor ventilation path 4 smaller than that in the visible wall 11 on the indoor side, thereby preventing rainwater from being sucked into the ventilation path 2 due to the pressure difference, and even if rainwater does enter the ventilation path 2, it can be drained from the outdoor ventilation openings 6a.

This fitting also has a frame (ventilation frame) 1, which has a vent 6a that opens toward the inside circumference on the outside of the room, vents 6e and 6f that open toward the inside circumference on the inside of the room, and vents 6b, 6c, and 6d that penetrate from the inside to the outside of the room at a position on the outer periphery side of both vents 6a, 6e, and 6f. These vents 6a, 6b, 6c, 6d, 6e, and 6f form a ventilation path 2 that connects the room to the outside, allowing ventilation 24 hours a day through the ventilation path 2, which contributes to reducing electricity costs for air conditioning equipment. Furthermore, the fitting of the present invention has heating foam materials 12a, 12b, and 12c that block the vents 6a and 6b on the outside of the room and the vents 6d and 6e on the inside of the room in the event of a fire, which gives it fire resistance.

As shown in Figures 2 and 3, the inner window 14 has an upper frame 59 and a lower frame 60 attached to the inner side of the frame 58 around the four sides, left and right vertical frames 61, 61, and an outer shoji screen 62a and an inner shoji screen 62b that are placed between the upper and lower frames 59, 60 in a sliding manner so that they can be opened and closed freely. The frames 59, 60, 61 and the frames of the shoji screens 62a, 62b are made of resin. The glass 63 of the shoji screens 62a, 62b is double-glazed. There is a wooden frame 58 between the frame 18 of the outer window 13 and the frames 59, 60, 61 of the inner window 14, so the outer window 13 and the inner window 14 are thermally isolated.

2, the inner window 14 is provided with a ventilation device 64 on the outer periphery of the upper frame 59. The ventilation device 64 is configured by combining an upper shape member 65 and a lower shape member 66 made of aluminum material one above the other, and a ventilating section 67 that communicates between the inside and outside of the room is provided between the upper shape member 65 and the lower shape member 66.
The lower section 66 has projections 68a, 68b protruding upward from the exterior end and the interior end, and an exterior air vent 69a is formed in the longitudinal direction between the exterior projection 68a and the upper section 65, and an interior air vent 69b is formed in the longitudinal direction between the interior projection 68b and the upper section 65.
A straightening plate 70 is provided integrally with the upper member 65 and hangs down from its outdoor end, and faces the outdoor side of the outdoor vent 69a. The upper member 65 also has two connecting walls 71a, 71b hanging down between the outdoor vent 69a and the indoor vent 69b, and the tips of the connecting walls 71a, 71b engage with grooves 72 formed on the upper surface of the lower member 66, thereby connecting the upper member 65 and the lower member 66. A plurality of vents 73 are formed in the connecting walls 71a, 71b at intervals in the longitudinal direction.

In addition to providing an inner window 14 using resin frames 59, 60, 61 and frame and double-glazed glass 63, this fitting allows air to flow between the inside and outside of the room through the ventilation path 2 provided in the ventilation frame 1 of the outer window 13, the intermediate layer 20, and the ventilation section 67 provided at the top of the inner window 14. At that time, the air flows around the intermediate layer 20 along the inside surface of the outer window 13 and the outside surface of the inner window 14, preventing heat transfer in the opposite direction to the air inflow, providing excellent insulation performance and contributing to further reductions in the electricity bill for air conditioning equipment.

In the case of winter, the indoor pressure is adjusted to negative pressure by a ventilation fan or the like, and air flows from the outside to the inside of the double-glazed window as shown in Fig. 2. The cold air (outside air) flowing in from the ventilation frame 1 of the outer window 13 flows out downward along the indoor side of the glass 74 of the outer window 13 because the indoor side ventilation port 6f opens downward and the flow regulator 56 is installed hanging down on the indoor side. The cold air then flows under the intermediate layer 20 by the cold draft, turns around, is heated by the heat from the indoor side being transferred from the glass 63 of the inner window 14, and rises along the outdoor side of the glass 63, during which the heat escaping from the glass 63 to the outside is collected by the air flow. The heated air then flows into the room through the ventilation part 67 at the top of the inner window 14. The straightening plate 70 is attached to the upper section 65 so as to prevent the air rising along the exterior side of the glass 63 from flowing back outside, and is guided to the ventilation section 67. When the air passes through the ventilation section 67, the heat of the ventilation device 64 and the upper frame 59, which has been warmed by the heat inside the room, is also collected by the air flow. By taking the warmed air into the room, the collected heat can be returned to the room.
In this way, the air flows around the outer window 13 and the inner window 14 inside the intermediate layer 20, and the heat transferred from inside the room to outside is collected by the air flow and returned to the room, so that there is almost no heat loss from inside to outside, and very high thermal insulation is obtained. In addition, since the outside air is warmed and brought into the room, people inside the room do not feel cold drafts and the heating efficiency is also good.

In summer, the indoor pressure is adjusted to positive pressure by a ventilation fan or the like, and air flows from the indoors to the outdoors, the opposite of the winter. The air coming out of the ventilation section 67 of the inner window 14 hits the air straightening plate 70 and changes its flow downward. Since the temperature of the indoor air is lower than the outdoor air, the air flows downward along the outdoor side of the glass 63 of the inner window 14, then turns around at the bottom of the intermediate layer 20, and rises along the indoor side of the glass 74 of the outer window 13 by the heat of the glass 74 of the outer window 13, and during this time, the heat and solar radiation heat that enter the indoors from the outdoors through the glass 74 are collected by the air flow. The air then passes through the ventilation frame 1 of the outer window 13 and is discharged to the outdoors. When the air passes through the ventilation frame 1, the heat that enters the indoors through the ventilation frame 1 is collected by the air flow. Then, the air is discharged to the outdoors, and the heat and solar radiation heat collected from the glass 74 and the ventilation frame 1 are discharged to the outdoors.
In this way, the heat from sunlight and the heat transferred from the outside to the inside of the room is collected by the air flow and then discharged to the outside, preventing the transport of heat from the outside to the inside of the room, which is in the opposite direction to the air outflow, thereby providing excellent insulation and keeping the room cool.

This fitting has a ventilation frame 1 on the outer periphery of the upper frame 15 of the exterior window 13, and a ventilation path 2 that connects the interior and exterior of the room is provided in the ventilation frame 1, so there is no need to provide ventilation parts in the frame 18 or the shoji screens 19a, 19b of the exterior window 13. The ventilation frame 1 has a ventilation port 6a that faces the exterior and opens downward, and a visible wall 4 is provided hanging down from the exterior side of the ventilation port 6a, and the exterior space 23 and intermediate space 24 of the ventilation frame 1 are at equal pressure to the outside air, so that the exterior window 13 can prevent rainwater from entering while having a ventilation path 2, and watertight performance can be ensured. Furthermore, the ventilation frame 2 has heated foam materials 12a, 12b, 12c that block the ventilation ports 6a, 6b, 6d, 6e on the exterior and interior sides of the ventilation path 2, so that fire resistance can be imparted.

The present invention is not limited to the above-described embodiment. The fittings of the present invention can be used alone, not just as double-glazed windows. The type of window is not limited to sliding windows, but can be used for all window types, such as fixed windows and sliding windows. The shape and material of the vent frame can be changed as appropriate. The shape of the vent is arbitrary, and is not limited to a rectangular long hole, but may be, for example, circular.

1 Ventilation frame (frame)
2 Ventilation path 3 Outdoor cover material (cover material)
4: Exterior wall 5: Exterior wall on the outside of the room 6a, 6b, 6c, 6d, 6e, 6f: Vent 7: Hinge section 8, 9: Interior exterior wall 10, 11: Exterior wall 12a, 12b, 12c: Heat foaming material

Claims (1)

This fitting is characterized by comprising a ventilation frame, the ventilation frame having a ventilation path connecting the inside and outside of the room, a cover material being provided on the outside of the room, the cover material having a front wall and a concealed wall provided on the front wall , a ventilation hole facing the outside of the room being provided on the concealed wall, and being freely rotatable to the outside of the room with a hinge portion provided at the upper end of the concealed wall as a fulcrum.

Images