JP2021173038A - Inner window - Google Patents

Abstract

To provide an inner window placed at the indoor side of an opening capable of preventing the inner window from being broken by controlling the flow of air to suppress a force applied to the inner window due to internal pressure and external pressure.SOLUTION: The inner window includes a ventilation part between a building opening and a resin top frame, and the ventilation part is constituted of an opening side member which is fixed to the building opening and an inner window side member which is fixed to the inner window. At least one of the opening side member and the inner window side member has a connecting leg extending toward the other side, and the other has an engaging part capable of slide-connecting and engaged with the leg and a communication part is formed in the connecting leg to make the air flows.SELECTED DRAWING: Figure 2

Description

The present invention relates to an inner window arranged at a building opening.

Conventionally, an inner window arranged at a building opening is known.

Japanese Unexamined Patent Publication No. 2014-91918

In the fitting of Document 1, the heat insulating property can be improved by arranging an inner window made of resin on the indoor side of the opening.

An object of the present invention is to control the flow of air in an inner window arranged on the indoor side of an opening, suppress the force applied to the inner window due to internal pressure and external pressure, and prevent damage.

In one embodiment, a ventilation portion is provided between the building opening and the upper frame, and the ventilation portion has an opening side member fixed to the building opening and an inner window side member fixed to the inner window side, and the ventilation portion has an opening. At least one of the member side member and the inner window side member has a connecting leg extending toward the other side, and the other has an engaging portion on which the connecting leg can be slidably engaged. The connecting leg is an inner window formed with a communication portion that enables air flow in the indoor and outdoor directions.

According to the present embodiment, in the inner window arranged on the indoor side of the opening, the air flow can be controlled, and the force applied to the inner window due to the internal pressure and the external pressure can be suppressed to prevent damage.

It is a vertical sectional view of the double-glazed window provided with the inner window which concerns on one Embodiment. It is a vertical sectional view of the upper part of the inner window which concerns on one Embodiment. It is a figure of the ventilation frame of the inner window which concerns on one Embodiment, (a) is a front view seen from the indoor side, (b) is a sectional view of AA of (a), and (c) is (c). It is a BB cross-sectional view of a). It is a figure of the ventilation frame of the inner window which concerns on one Embodiment, (a) is a figure which shows the slide engagement of the opening side member and the inner window side member of an inner ventilation frame, and (b) is the figure which slide engagement is completed. Then, it is the figure which attached the end cap to one end, and (c) is the figure of the end cap. It is a vertical cross-sectional view of the upper part of the inner window of the embodiment which made fire protection specification. It is a vertical sectional view of the double-glazed window provided with the inner window which concerns on another embodiment.

As the inner window of the embodiment, an example of an inner window suitable for a double-glazed window provided with an outer window and an inner window and a high heating / cooling efficiency can be expected by utilizing the space between the outer window and the inner window is shown in the drawing. It will be explained for reference.

As shown in FIG. 1, the double-glazed window according to the present embodiment includes an upper frame 11 made of a metal material such as aluminum, a lower frame 12, and a frame body 1 formed by assembling left and right vertical frames in four directions. An outer window having outer sashes 2 and 3 that is freely supported on the inner circumference of 1, an upper frame 61 made of a resin material, a lower frame 62, and a frame body 6 made of left and right vertical frames, and a frame. The inner circumference of the body 6 is supported by a sliding door that can be opened and closed, and an inner window having outer shoji 7 and 8 is provided.

The outer window has an outer ventilation frame 4 arranged between the building opening and the upper frame 11, and the inner window has an inner ventilation frame 9 arranged between the building opening and the upper frame 61. Ventilation paths A1 to A5 are formed as a whole in the double-glazed window.

The outer ventilation frame 4 of the outer window is made of a metal material such as aluminum and is fixed to the opening of the building and the upper frame 11 is fixed downward to the outer ventilation frame main body 41 and to the indoor side of the outer ventilation frame main body 41. It has an indoor side cover material 42 and an outdoor side cover material 43 fixed to the outdoor side of the outdoor ventilation frame main body 41, and forms a ventilation path A1 that communicates indoors and outdoors above the upper frame 11.

The ventilation path A1 of the outer ventilation frame 4 has an outdoor ventilation port 43a that opens downward to the outdoor side of the outer window and an indoor ventilation port 42a that opens downward to the indoor side of the outer window. It is a ventilation path with a maze structure that connects 43a and the indoor ventilation port 42a.
Insect repellent nets a are arranged at appropriate positions in the ventilation path A1 to prevent insects from invading from the outside.

The inner ventilation frame 9 of the inner window has an opening side member 91 made of a metal material such as aluminum and fixed to the opening of the building by a screw or the like, and an inner window side member 92 fixed to the upper frame 61. It forms a ventilation path A5.

As shown in FIG. 4, the opening side member 91 is a long member, and has an outer peripheral side wall 911 fixed to the building opening and a connecting leg extending downward from the inner peripheral surface of the outer peripheral side wall 911. It has 912 and 912 and a hanging piece 913 that hangs downward from the outdoor end of the outer peripheral side wall 911.

As shown in FIGS. 2 and 3, the connecting leg 912 of the opening side member 91 is formed with a communication portion 912a by cutting a lower portion over a wide range x (FIG. 3) in the finding direction (left-right direction). An engaging leg 912b is formed at the lower end of the portion where the communication portion 912a is not formed.

As shown in FIG. 4, the inner window side member 92 is a long member, and is formed on the inner peripheral side wall 921 to which the upper frame 61 of the inner window is fixed and the inner peripheral surface of the inner peripheral side wall 921. It has a joint portion 922, 922, an indoor side wall 923 extending upward from the indoor side end of the inner peripheral side wall 921, and an outdoor wall 924 extending upward from the outdoor side end of the inner peripheral side wall 921. ..

As shown in FIGS. 2 and 3, the engaging portions 922 and 922 of the inner window side member 92 have a groove shape in which the upper ends of the side walls rising from the inner peripheral surface of the inner peripheral side wall 921 approach each other to form an opening. The engaging legs 912b of the connecting legs 912 and 912 of the opening side member 91 can be inserted into the engaging portion 922 and slid from the end surface of the inner window side member 92 in the finding direction.

Then, on the end faces of the opening side member 91 and the inner window side member 92, the engaging legs 912b of the opening side member 91 are inserted and slid engaged with the engaging portions 922 and 922 of the inner window side member 92. By attaching the end cap 93 shown in 4 (c), the internal ventilation frame 9 can be formed as shown in FIG. 4 (b). For the sake of explanation, FIG. 4B is a diagram in which the end cap 93 is not attached to the front side (left side) end surface of the internal ventilation frame 9.

The inner ventilation frame 9 arranged between the building opening and the upper frame 61 of the inner window has an outdoor ventilation port 9a that opens downward to the outdoor side of the inner window and an indoor ventilation that opens to the indoor side of the inner window. It has a port 9b, and a ventilation path A5 is formed between the outdoor ventilation port 9a and the indoor ventilation port 9b so that air can flow smoothly without resistance as compared with the ventilation path A1 of the outer ventilation frame 4. There is.

In the double-glazed window formed by the above-mentioned outer window and inner window, as shown in FIG. 1, for example, in winter, by adjusting the indoor pressure to a negative pressure with a ventilation fan or the like, the outer ventilation frame 4 of the outer window 4 Ventilation can be performed by allowing outside air to flow into the room through the outdoor vent 43a.

The cold outside air that has flowed in from the outdoor vent 43a of the outdoor ventilation frame 4 flows downward from the indoor vent 42a along the indoor side surfaces of the outer windows 2 and 3, and is outside by a cold draft. After flowing to the bottom of the space between the windows and the inner window, it folds back and rises along the outdoor surface of the outer windows 7 and 8 inside the inner window. At that time, the heat that escapes from the room to the outside through the glass of the outer windows 7 and 8 inside the inner window is recovered by the air flow, and the ventilation path from the outdoor vent 9a of the inner ventilation frame 9 to the inner ventilation frame 9 It flows into the room through A5.

In this way, in winter, the heat that escapes through the inner window can be recovered in the space between the outer window and the inner window by the outside air taken in during ventilation and taken into the room, improving the heating efficiency. Can be done.

Further, in the summer, by adjusting the indoor pressure to a positive pressure with a ventilation fan or the like, air can be discharged to the outside of the room through the indoor ventilation port 9b of the inner ventilation frame 9 of the inner window to perform ventilation.

The indoor air that has flowed in from the indoor ventilation port 9b of the inner ventilation frame 9 flows out from the outdoor outdoor ventilation port 9a to the inside of the inner window and downward along the outdoor surface of the outer sashes 7 and 8. The cold air cooled by a cooler or the like flows to the bottom of the space between the outer window and the inner window, then turns back, and rises inside the outer window along the indoor side surfaces of the outer shoji screens 2 and 3. At that time, the heat that enters the indoor side through the glass surfaces of the outer windows 2 and 3 is recovered by the air flow, and the ventilation path of the outer ventilation frame 4 is taken from the indoor ventilation port 42a of the outer ventilation frame 4. It can flow out of the room through A1.

In this way, in the summer, the air discharged during ventilation can collect the heat that enters through the outer window in the space between the outer window and the inner window and release it to the outside, improving the cooling efficiency. Can be made to.

-Inner window with fire protection-
Fire protection specifications can be met by appropriately arranging a heat expansion material with respect to the inner window of the present embodiment.
FIG. 5 shows an inner window corresponding to the fire protection specifications.

Regarding the inner window of the fire protection specification, the inner and outer upper rails that support the inner sash 7 and the outer sash 8 are formed of a rail member 61a made of a metal material such as aluminum, with respect to the resin upper frame 61. It is fixed from the inner peripheral side by a fixing means such as a screw.
Further, a metal reinforcing member p is appropriately arranged on each of the inner and outer sash 7.8 stiles, and a thermal expansion material f is appropriately arranged at a suitable portion.

Then, the thermal expansion members f1 and f2 can be provided at both ends of the outer peripheral side surface of the outer peripheral side wall 911 of the opening side member 91.
In the event of a fire, the thermal expansion members f1 and f2 expand to close the gap formed between the internal ventilation frame 9 and the opening of the building.

Further, the thermal expansion members f3 and f4 can be arranged on both side surfaces of the outer peripheral side surface of the inner peripheral side wall 921 of the inner window side member 92.
In the event of a fire, the thermal expansion materials f3 and f4 expand to block the ventilation path A5 of the internal ventilation frame 9, prevent flames, gas, etc. from entering through the ventilation path A5, and suppress the spread of fire. be able to.

Further, the heat expansion materials f5 and f6 are arranged between the upper surface of the upper frame 61 of the inner window and the inner window side member 92 of the inner ventilation frame 9, and the heat expansion material f7 is arranged between the rail member 61a and the upper frame 61. , F8 can be arranged.
In the event of a fire, the thermal expansion material f5 or the thermal expansion material f8 expands to close the gap formed by melting the resin upper frame 61, preventing the ingress of flames, gas, etc., and spreading the fire. Can be suppressed.

As described above, according to the inner window of the present embodiment, the ventilation portion (inner ventilation frame 9) is created by slidingly engaging the opening side member and the inner window side member formed of the extruded aluminum profile. Since it can be used, the number of parts is small and it is easy to create and construct.

Then, by appropriately setting the size of the ventilation holes (ventilation parts of the connecting legs, etc.) of the ventilation part provided in the inner window, the air flow is controlled and the force applied to the inner window due to the internal pressure and the external pressure is suppressed. It is possible to prevent damage to the inner window.
Further, by forming the indoor side wall 923 extending upward at the indoor side end of the inner window side member 92 of the internal ventilation frame 9, the ventilation port is not exposed on the indoor side, and the design is excellent. It becomes.

In the inner window of the present embodiment, a hanging piece 913 that hangs downward is provided at the outdoor end of the inner ventilation frame 9 to form a ventilation path, but the inner window hangs on the opening side member 91 of the inner ventilation frame 9. Instead of providing the piece 913, for example, as shown in FIG. 6, the rectifying body 44 may be attached to the indoor side surface of the indoor side cover material 42 of the external ventilation frame 4 with a knob bolt 44a to control the air flow. ..

Further, the connecting leg for slidingly connecting the opening side member 91 and the inner window side member 92 may be provided on the inner window side member 92 instead of being provided on the opening side member 91, in which case the engaging portion is provided on the opening. It may be formed so as to be provided on the side member.
Further, the number of connecting legs may be one or a plurality, and connecting legs may be formed in each of the opening side member 91 and the inner window side member 92, and an engaging portion may be formed in each facing portion. ..
That is, the connecting legs may be provided on at least one of the opening side member and the inner window side member, and the engaging portion may be provided on the other portion facing the connecting legs.

Further, the internal ventilation frame 9 may be formed of resin or a composite of resin and aluminum.
It goes without saying that the above embodiments do not limit the invention described in the claims and are treated as examples.

61: Upper frame 9: Internal ventilation frame (ventilation part)
9a: Outdoor vent 9b: Indoor vent 91: Opening side member 92: Inner window side member 911: Outer side wall 912: Connecting leg 912a: Communication part 912b: Engagement leg 913: Hanging piece 921: Inner peripheral side wall 922: Engagement part 923: Indoor side wall 924: Outdoor wall A5: Ventilation path

Claims (1)

A ventilation section is provided between the building opening and the upper frame.
The ventilation unit has an opening side member fixed to the building opening and an inner window side member fixed to the inner window side.
At least one of the opening side member and the inner window side member has a connecting leg extending toward the other side, and the other has an engaging portion on which the connecting leg can be slidably engaged. Ori,
The connecting legs are inner windows with communication parts that allow air to flow.

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