JP6695174B2 - Ventilation - Google Patents

Description

  The present invention relates to a ventilation device having a heat insulating property attached to a window shoji.

  The ventilation device mounted on the upper edge of the window shoji is generally constructed by assembling a plurality of aluminum mold members, and the flow control mechanism controls the flow of air in the ventilation passage formed inside thereof. However, in such a ventilator, the entire ventilator is cooled by the outside air especially during cold weather, which not only robs warm air in the room but also causes dew condensation on the surface on the indoor side.

  Therefore, a ventilation device having a heat insulating property has been developed. In the ventilator disclosed in Patent Document 1, the outer main body arranged on the outdoor side is made of an aluminum mold material having weather resistance and mechanical strength, and the inner main body arranged on the indoor side is a resin excellent in heat insulation. It is made of mold material. The inner main body integrally has first and second overhangs that are vertically separated from each other and project toward the outdoor side, and the outdoor side edges of the first and second overhangs correspond to the outer main body. It is connected.

  In the ventilation device disclosed in Patent Document 2, both the outer main body and the inner main body are made of aluminum mold material. Between the outer main body and the inner main body, first and second bridges made of a resin mold material which are vertically separated from each other are arranged. The outdoor side edge and the indoor side edge of the first and second bridges are connected to the outer body and the inner body.

JP, 10-227181, A JP, 10-115156, A

  In the ventilation device of Patent Document 1, since the inner main body is made of resin, the outer main body is inevitably responsible for the mechanical strength. Increasing the depth of the overhanging portion of the inner body can improve the heat insulation, but reduces the mechanical strength of the entire ventilation device. On the contrary, if the depth of the overhanging portion of the inner body is made smaller and the depth of the outer body is made larger, the mechanical strength can be secured, but the heat insulating property is reduced.

  Similarly, in Patent Document 2, when the depth dimension of the first and second resin bridges is increased, the heat insulating property can be improved, but the mechanical strength of the entire ventilation device is reduced. On the contrary, if the depth dimension of the resin bridge is reduced and the total depth dimension of the metal outer body and the inner body is increased, the mechanical strength can be secured, but the heat insulating property is reduced.

  As described above, it is left as a subject to secure both the heat insulating property and the mechanical strength at a sufficient level.

The present invention has been made in order to solve the above problems, and is an elongated ventilation device incorporated in a window shoji, which is made of metal having a ventilation port, which extends in the longitudinal direction of the ventilation device and is arranged on the outdoor side. Between the outer body and the inner mold member that extends in the longitudinal direction of the ventilation device and is arranged on the indoor side and is made of a resin and has a ventilation port, and that extends in the longitudinal direction of the ventilation device. A metal-made intermediate reinforcing member having a ventilation port, and first and second resin bridges extending in the longitudinal direction of the ventilation device and arranged between the outer main body and the intermediate reinforcing member. A ventilation passage that passes through the ventilation holes of the outer body, the intermediate reinforcing member, and the inner body, and a flow control mechanism that controls the flow of air in the ventilation passage,
The inner main body is connected to the intermediate reinforcing member at a connection location spaced apart by sandwiching the ventilation opening of the inner main body and the ventilation opening of the intermediate reinforcing member, and the first and second bridges are connected to the outer main body. It is characterized in that the ventilation port and the ventilation port of the intermediate reinforcing member are spaced apart from each other, and the outdoor edge and the indoor edge thereof are connected to the outer main body and the intermediate reinforcing member. ..

  According to the above configuration, by incorporating the resin inner main body and the resin first and second bridges, the total depth dimension of the resin material can be increased and sufficient heat insulation can be ensured. Moreover, the outer main body is made of metal, and the metal intermediate reinforcing member is interposed between the resin inner main body and the resin first and second bridges, thereby ensuring sufficient mechanical strength. It is possible to suppress twisting and bending of the ventilation device.

Preferably, the outer main body, the inner main body, and the intermediate reinforcing member are each made of one extruded mold material, and the inner main body integrally has a first overhanging portion and a second overhanging portion protruding toward the outside of the room. The first overhang portion and the second overhang portion are separated from each other with the ventilation opening of the inner main body and the ventilation opening of the intermediate reinforcing member interposed therebetween, and the outer edge of the first overhang portion and the second overhang portion. The part is connected to the intermediate reinforcing member.
According to the above configuration, the outer main body, the inner main body, and the intermediate reinforcing member are each made of one extruded mold member, so that the number of parts can be minimized. Further, the heat insulation can be further enhanced by the first and second projecting portions of the resin inner main body.

Preferably, a small space which is a part of the ventilation passage, by the front wall of the inner main body having the ventilation port, the first and second projecting portions, and the intermediate wall of the intermediate reinforcing member having the ventilation port. In the small space, a plate-shaped resin spacer extending in the longitudinal direction of the ventilation device is vertically housed, and the spacer has a ventilation port and both side edges thereof. In addition, it has ribs that project to the outside and the inside of the room.
According to the above configuration, the ribbed spacer can increase the strength of the ventilation device, and can suppress, for example, the ventilation device from expanding due to wind pressure (expanding so that the center in the longitudinal direction thereof projects toward the indoor side). .. Since this spacer is made of resin, it does not reduce the heat insulating property of the ventilation device.

  Preferably, the outer main body and the inner main body integrally have a glass plate pressing portion projecting downward, and the glass plate pressing portions of the outer main body and the inner main body are arranged to face each other in the indoor / outdoor direction to accommodate the glass plate. A space is formed.

Preferably, the second bridge faces the glass plate accommodating space and is provided in a plurality in a number separated in the longitudinal direction. A metal bridge piece is arranged between the second bridges, and the outdoor side of the bridge piece. An edge portion and an indoor side edge portion are connected to the outer main body and the intermediate reinforcing member, and further provided with a metal reinforcing plate extending in the longitudinal direction of the ventilation device and arranged in the glass plate accommodating space. Has a horizontal plate portion disposed below the second bridge and the bridge piece, and a vertical plate portion along the surface on the outdoor side of the glass plate pressing portion of the inner body, the horizontal plate portion and the bridge. The pieces are connected with screws.
According to the above configuration, even if the inner body made of resin, the first and second bridges are melted in the event of a fire, the outer body made of metal, the intermediate reinforcing member, the reinforcing plate, and the bridge piece are connected to each other. As it remains, it remains attached to the glass plate without disassembling and dropping. Therefore, it is possible to prevent the flame from entering the room.

Preferably, the flow control mechanism has a metal actuating plate slidably supported by the outer main body or the intermediate reinforcing member, and by this actuating plate, the ventilation port of the outer main body or the intermediate reinforcing member is provided. It is opened and closed.
According to the above configuration, the operating plate is slid with respect to the metal outer main body or the intermediate reinforcing member, so that stable opening / closing operation can be performed.

  According to the present invention, both heat insulation and mechanical strength can be ensured at a sufficient level.

It is a sectional view of the upper frame integrated type ventilation device concerning a 1st embodiment of the present invention. It is sectional drawing of the upper frame integrated type ventilation device which concerns on 2nd Embodiment of this invention. It is sectional drawing of the upper frame integrated type ventilation device which concerns on 3rd Embodiment of this invention. It is a perspective view which shows the lower bridge structure of said 3rd Embodiment.

  Hereinafter, the ventilation device according to the first embodiment of the present invention will be described with reference to FIG. This ventilation device is of a so-called upper frame integrated type, extends in the left-right direction (direction orthogonal to the paper surface of FIG. 1), and is incorporated in the window screen as an upper frame.

  The ventilation device includes an outer main body 10 arranged to face the outside, an inner main body 20 arranged to face the room, an intermediate reinforcing member 30 arranged between the outer main body 10 and the inner main body 20, and an outer main body. The upper and lower bridges 40 and 50 (first and second bridges) interposed between the intermediate reinforcement member 10 and the intermediate reinforcing member 30.

  The outer main body 10 is made of one aluminum (metal) mold material (extrusion mold material; the same applies hereinafter) extending in the longitudinal direction of the ventilation device, and has a thick base portion 11 and a base portion 11 that is thinner than the base portion 11. It has a back wall 12 which stands vertically from. A large number of vertically extending ventilation openings 12a are formed in the back wall 12 at intervals in the longitudinal direction.

Bridge engagement portions 13 and 14 to be described later are formed on the indoor surface of the upper end portion of the back wall 12 and the indoor surface of the base portion 11. The bridge engaging portions 13 and 14 are vertically separated from each other with the ventilation port 12a interposed therebetween.
A glass pressing portion 15 extending vertically downward is connected to the lower edge of the base portion 11. An engaging portion 16 for engaging the sealing material 61 is connected to the upper edge of the back wall 12.

  The intermediate reinforcing member 30 is also made of a single aluminum (metal) mold member extending in the longitudinal direction of the ventilation device, and has a thick base portion 31 and a vertical portion that is thinner than the base portion 31 and is arranged closer to the room. It has the standing intermediate wall 32. A large number of ventilation openings 32a extending vertically are formed in the intermediate wall 32 at intervals in the longitudinal direction.

Bridge engaging portions 33 and 34, which will be described later, are formed on the outer surface of the upper portion of the intermediate wall 32 and the outer surface of the base 31. The bridge engaging portions 33 and 34 are vertically separated from each other with the ventilation port 32a interposed therebetween.
An engagement portion 35 for engaging the sealing material 62 is formed on the surface of the upper edge of the intermediate wall 32 on the outdoor side.
Engaging portions 36 and 37, which will be described later, are also formed on the indoor side surface of the upper edge portion of the intermediate wall 32 and the indoor side surface of the base portion 31. These engaging portions 36 and 37 are also vertically separated with the ventilation port 32a interposed therebetween.

Each of the upper and lower bridges 40, 50 is made of a resin mold material extending in the longitudinal direction of the ventilation device.
The upper bridge 40 has a substantially U-shaped cross section, and the engaging portions 41 and 42 formed on the outdoor side and the indoor side edge portions thereof are connected to the bridge engaging portion 13 of the outer main body 10 and the bridge engaging portion of the intermediate reinforcing member 30. The outer main body 10 and the intermediate reinforcing member 30 are connected to each other by engaging the joint portions 33, respectively.

  The lower bridge 50 has a hollow cross-sectional shape, and includes the engaging portions 51 and 52 formed on the outdoor side and the indoor side edge portions thereof, and By engaging the bridge engaging portion 34, the outer main body 10 and the intermediate reinforcing member 30 are connected.

The bridges 40 and 50 are vertically spaced apart with the ventilation devices 12a and 32a interposed therebetween. A space 70 a surrounded by the outer main body 10, the intermediate reinforcing member 30, and the bridges 40 and 50 is provided as a main part of the ventilation passage 70.
The space 75 surrounded by the outer main body 10, the upper edge portion of the intermediate reinforcing member 30, and the bridge 40 is open at the upper side and receives the upper rail of the window frame.

  The lower bridge 50 is thicker and has a larger cross-sectional area than the upper bridge 40, and has a wedge-shaped engaging portion 51 having a larger cross-sectional area than the engaging portions 41 and 42 of the upper bridge 40. , 52 are caulked and fixed to the bridge engaging portion 14 of the outer main body 10 and the bridge engaging portion 34 of the intermediate reinforcing member 30. Therefore, the outer main body 10 and the intermediate reinforcing member 30 are firmly connected to each other, particularly in the lower part.

The inner main body 20 is made of one resin mold material extending in the longitudinal direction of the ventilation device, and has a base portion 21 and a front wall 22 standing upright from the base portion. On the front wall 22, a large number of ventilation openings 22a extending vertically are formed at intervals in the longitudinal direction.
Recessed grooves 23 and 24 for fitting the filter 65 are formed in the upper edge portion and the lower edge portion of the front wall 22. A glass pressing portion 25 extending vertically downward is connected to a lower edge of the base portion 21 on the indoor side.

  The inner body 20 has an upper protruding portion 26 (first protruding portion) continuous with the upper edge of the front wall 22 and a lower protruding portion 27 (second protruding portion) continuous with the lower inner edge of the base 21. Have. These projecting portions 26 and 27 horizontally project to the outside of the room, and have engaging portions 26a and 27a at their tip edges. The inner main body 20 is connected to the intermediate reinforcing member 30 by engaging the engaging portions 26a and 27a of the projecting portions 26 and 27 with the engaging portions 36 and 37 of the intermediate reinforcing member 30.

  Between the front wall 22 of the inner main body 20 and the intermediate wall 32 of the intermediate reinforcing member 30, a small space 70b having a small depth dimension, which is a part of the ventilation passage 70, is formed. The spacer 66 is accommodated in the small space 70b. The inner main body 20 is integrally formed with a support shelf 28 that horizontally projects from the boundary between the base 21 and the front wall 22 toward the outside of the room, and the spacer 66 is mounted on the support shelf 28.

The spacer 66 is made of a plate-shaped resin mold material and is vertically housed in the small space 70b. In the spacer 66, elongated ventilation openings 66a extending in the vertical direction are formed at intervals in the longitudinal direction.
Ribs 66b are formed on the upper edge and the lower edge of the spacer 66 so as to project to the outside and the inside of the room.

  The ventilation device has a ventilation passage 70 that passes through the ventilation ports 12a, 22a, 32a, 66a. The circulation of air in the ventilation passage 70 is adjusted by the circulation control mechanism 80. The flow control mechanism 80 includes an operating plate 81 that is slidably contacted with the inner surface of the outer body 10 in the longitudinal direction, and an operation knob 82 that is slidably mounted in one end of the inner body 20 in the longitudinal direction. And a connecting member 83 that connects the operating plate 81 and the operating knob 82.

  The operating plate 81 is made of an aluminum mold member extending in the longitudinal direction of the ventilation device, and has control ports 81a having the same shape and pitch as the ventilation ports 12a of the outer main body 10. When the control opening 81a coincides with the ventilation opening 12a, the ventilation opening 12a opens, and when they do not coincide, the ventilation opening 12a closes to block the ventilation passage 70.

The glass plate retainer 15 of the outer main body 10 and the glass plate retainer 25 of the inner main body 20 are arranged to face each other in the indoor / outdoor direction.
The lower surface of the bridge engaging portion 14 of the outer main body 10, the lower surface of the lower bridge 50, the lower surface of the bridge engaging portion 34 of the intermediate reinforcing member 30, and the lower surface of the base portion 21 of the inner main body 20 are substantially flush with each other. That is, the glass plate holding space 76 is defined in cooperation with the glass plate pressing portions 15 and 25.
An upper edge portion of a glass plate (not shown) of the window screen is fitted into the glass plate housing space 76.

  By incorporating the resin inner body 20 and the resin bridges 40 and 50 in the above configuration, the total depth dimension of the resin material can be increased and sufficient heat insulation can be ensured. Moreover, since the outer main body 10 is made of metal and the metal intermediate reinforcing member 30 is interposed between the inner main body 20 and the bridges 40, 50, sufficient mechanical strength can be ensured and the ventilation device can be twisted. And bending can be suppressed.

  In the present embodiment, the projecting portions 26 and 27 of the inner body 20 can further enhance the heat insulating property. Since the spacer 66 with the rib 66b is housed in the small space 70b formed by the projecting portions 26 and 27, the strength of the ventilator is not impaired, and the ventilator swells due to, for example, wind pressure (the center in the longitudinal direction is (Expanding so as to project to the indoor side) can be suppressed.

  Next, another embodiment of the present invention will be described. In these embodiments, the components corresponding to those in the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted.

  In the second embodiment shown in FIG. 2, an operating plate 85 made of an aluminum mold member extending in the longitudinal direction of the ventilation device is slidably and rotatably supported by the intermediate reinforcing member 30. More specifically, a shaft portion 85a is formed on the upper edge of the actuating plate 85, and the shaft portion 85a is slidably and rotatably accommodated in the shaft support portion 39 formed on the upper portion of the intermediate reinforcing member 30. ing.

A connection hole (not shown) is formed at the end of the operating plate 85, and the outdoor side end of the operation knob 82 is inserted into this connection hole. By sliding the operation knob 82, the operating plate 85 also slides in the same direction.
A cam member (not shown) is installed on the base portion 31 of the intermediate reinforcing member 30, and the actuating plate 85 is rotated by the cam member during the sliding process, so that the intermediate reinforcing member 30 faces the indoor surface. The ventilation port 32a is opened and closed by separating or approaching.
As the operating plate, an operating plate that slides along the intermediate reinforcing member 30 may be used as in the first embodiment.

  In the present embodiment, the front wall 22 of the inner body 20 and the intermediate wall 32 of the intermediate reinforcing member 30 are close to each other, and the spacer 66 of the first embodiment is omitted.

  In the third embodiment shown in FIGS. 3 and 4, the lower bridge structure B arranged between the outer main body 10 and the intermediate reinforcing member 30 is different from that of the first embodiment. The bridge structure B includes a plurality (two in the present embodiment) of resin bridges 50A (second bridges) shorter than the ventilation device, and aluminum mold members arranged between the bridges 50A and at both ends in the longitudinal direction of the bridge structure B. The bridge pieces 55 (made of metal) are arranged in the longitudinal direction without any gap.

The bridge 50A has the same cross-sectional shape as the bridge 50 of the first embodiment, and the engaging portions 51 and 52 formed at the outdoor side edge portion and the indoor side edge portion are intermediate with the bridge engaging portion 14 of the outer body 10. It is adapted to be engaged with the bridge engaging portion 34 of the reinforcing member 30.
The bridge piece 55 has engaging portions 56, 57 having the same cross-sectional shape as the engaging portions 51, 52 of the bridge 50A at the outdoor side edge and the indoor side edge, respectively. Are engaged with the bridge engaging portions 14 of the outer main body 10 and the bridge engaging portions 34 of the intermediate reinforcing member 30 to connect the outer main body 10 and the intermediate reinforcing member 30.

  As shown in FIG. 3, a reinforcing plate 90 that extends continuously in the longitudinal direction of the ventilation device is housed in the glass plate housing space 76. The reinforcing plate 90 is made of metal, and is formed into a L-shaped cross section by bending a stainless steel plate, for example, and has a horizontal plate portion 91 and a vertical plate portion 92.

The horizontal plate portion 91 is arranged along the lower surface of the bridge engaging portion 14 of the outer main body 10, the lower surface of the bridge engaging portion 34 of the intermediate reinforcing member 30, and the lower surface of the base portion 21 of the inner main body 20, which are substantially flush with each other. Has been done. The vertical plate portion 92 is arranged along the surface on the outdoor side of the glass plate pressing portion 25 of the inner body 20.
The reinforcing plate 90 and the bridge piece 55 are connected by screwing the screw 95 into the bridge piece 55 by penetrating the horizontal plate portion 91 of the reinforcing plate 90.

  Even if the resin bridges 40 and 50 and the inner body 20 are melted by heat in the event of a fire, the metal outer body 10, the intermediate reinforcing member 30, the bridge piece 55, and the reinforcing plate 90 are connected to each other. Since it is maintained, it remains without dropping from the upper edge of the glass plate. As a result, invasion of flame can be prevented.

  The present invention is not limited to the above-mentioned embodiment, and various modifications can be adopted without departing from the scope of the invention. For example, the present invention can be applied to a so-called upper frame separate-type ventilation device that is arranged below the upper frame of the window shoji.

  INDUSTRIAL APPLICABILITY The present invention can be applied to a ventilation device incorporated in a window shoji.

10 Outer Body 12 Back Wall 12a Ventilation Port 15 Glass Retainer 20 Inner Body 22 Front Wall 22a Ventilation Port 25 Glass Retainer 26 Upper Overhanging Part (First Overhanging Part)
27 Lower overhang (second overhang)
30 Intermediate Reinforcement Member 32 Intermediate Wall 32a Ventilation Port 40 Upper Bridge (First Bridge)
50,50A lower bridge (second bridge)
66 Spacer 66a Ventilation port 66b Rib 70 Ventilation passage 70b Small space 76 Glass plate accommodation space 80 Flow control mechanism 81, 85 Operating plate 90 Reinforcing plate 91 Horizontal plate part 92 Vertical plate part 95 Screw

Claims (5)

An elongated ventilation device incorporated in a window shoji,
A metal outer main body having a ventilation port, which extends in the longitudinal direction of the ventilation device and is arranged on the outdoor side,
A resin inner main body having a ventilation port, which is arranged on the indoor side while extending in the longitudinal direction of the ventilation device,
A metal intermediate reinforcing member having a ventilation port, which is arranged between the outer main body and the inner main body and extends in the longitudinal direction of the ventilation device.
Resin first and second bridges extending in the longitudinal direction of the ventilation device and arranged between the outer main body and the intermediate reinforcing member;
A ventilation passage that passes through the ventilation hole of the outer body, the intermediate reinforcing member, and the inner body,
A flow control mechanism for controlling the flow of air in the ventilation passage,
Equipped with
The inner main body is connected to the intermediate reinforcing member at a connection location spaced apart by sandwiching the ventilation opening of the inner main body and the ventilation opening of the intermediate reinforcing member,
The first and second bridges are arranged to be separated from each other with the ventilation opening of the outer main body and the ventilation opening of the intermediate reinforcing member interposed therebetween, and the edge portion on the outdoor side and the edge portion on the indoor side of the outer body are Connected to the intermediate reinforcing member,
The outer main body, the inner main body, and the intermediate reinforcing member are each made of one extruded mold member, and the inner main body integrally has a first overhanging portion and a second overhanging portion protruding toward the outside of the room. The first projecting portion and the second projecting portion are separated from each other with the ventilation port of the inner main body and the ventilation port of the intermediate reinforcing member sandwiched therebetween, and the outer edge portions of the first projecting portion and the second projecting portion are the above-mentioned. Connected to the intermediate reinforcing member,
The front wall of the inner body having the ventilation opening, the first and second projecting portions, and the intermediate wall of the intermediate reinforcing member having the ventilation opening define a small space that is a part of the ventilation passage. Has been done,
A plate-shaped resin spacer extending in the longitudinal direction of the ventilation device is vertically housed in the small space, and the spacer has a ventilation port, and both side edges of the spacer have an outdoor side and an indoor side. A ventilation device characterized by having a rib protruding to the inside. A slender ventilation device incorporated into a window shoji,
A metal outer main body having a ventilation port, which extends in the longitudinal direction of the ventilation device and is arranged on the outdoor side,
A resin inner main body having a ventilation port, which is arranged on the indoor side while extending in the longitudinal direction of the ventilation device,
A metal intermediate reinforcing member having a ventilation port, which is arranged between the outer main body and the inner main body and extends in the longitudinal direction of the ventilation device.
Resin first and second bridges extending in the longitudinal direction of the ventilation device and arranged between the outer main body and the intermediate reinforcing member;
A ventilation passage that passes through the ventilation hole of the outer body, the intermediate reinforcing member, and the inner body,
A flow control mechanism for controlling the flow of air in the ventilation passage,
Equipped with
The inner main body is connected to the intermediate reinforcing member at a connection location separated by sandwiching the ventilation opening of the inner main body and the ventilation opening of the intermediate reinforcing member,
The first and second bridges are arranged so as to be separated from each other with the ventilation opening of the outer main body and the ventilation opening of the intermediate reinforcing member interposed therebetween, and an edge portion on the outdoor side and an edge portion on the indoor side of the outer body are Connected to the intermediate reinforcing member,
A plurality of the second bridges are provided separately in the longitudinal direction, a metal bridge piece is disposed between the second bridges, and an outdoor side edge portion and an indoor side edge portion of the bridge piece are the outer body. And a ventilator connected to the intermediate reinforcing member. The outer main body and the inner main body integrally have a glass plate pressing portion projecting downward, and the glass plate pressing portions of the outer main body and the inner main body are arranged to face each other indoors and outdoors to form a glass plate accommodation space. Was
The second bridge faces the glass plate accommodation space,
Furthermore, a metal reinforcing plate extending in the longitudinal direction of the ventilation device and arranged in the glass plate accommodating space is provided, and the reinforcing plate includes a horizontal plate portion arranged below the second bridge and the bridge piece, The ventilation according to claim 2, further comprising a vertical plate portion extending along a surface on the outdoor side of the glass plate pressing portion of the inner main body, wherein the horizontal plate portion and the bridge piece are connected by a screw. apparatus. An elongated ventilation device that is incorporated in a window shoji and extends in the left-right direction,
A metal outer main body having a ventilation port, which extends in the longitudinal direction of the ventilation device and is arranged on the outdoor side,
A resin inner main body having a ventilation port, which is arranged on the indoor side while extending in the longitudinal direction of the ventilation device,
A metal intermediate reinforcing member having a ventilation port, which is arranged between the outer main body and the inner main body and extends in the longitudinal direction of the ventilation device.
Resin first and second bridges extending in the longitudinal direction of the ventilation device and arranged between the outer main body and the intermediate reinforcing member;
A ventilation passage that passes through the ventilation hole of the outer body, the intermediate reinforcing member, and the inner body,
A flow control mechanism for controlling the flow of air in the ventilation passage,
Equipped with
The inner main body is connected to the intermediate reinforcing member at a connection location separated by sandwiching the ventilation opening of the inner main body and the ventilation opening of the intermediate reinforcing member,
The first and second bridges are arranged to be separated from each other with the ventilation opening of the outer main body and the ventilation opening of the intermediate reinforcing member interposed therebetween, and the edge portion on the outdoor side and the edge portion on the indoor side of the outer body are Connected to the intermediate reinforcing member,
The first bridge is disposed above the second bridge, and a part of the ventilation passage is formed between the first bridge and the second bridge,
The ventilation device, wherein the first bridge has a substantially U-shaped cross section, and the upper rail of the window frame is received in the first bridge. The flow control mechanism has a metal actuating plate slidably supported by the outer main body or the intermediate reinforcing member, and the operating plate opens and closes the ventilation port of the outer main body or the intermediate reinforcing member. The ventilation device according to any one of claims 1 to 4 , which is characterized in that.

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