JP2003105880A - Curtain wall unit with ventilation mechanism and ventilating construction for building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a curtain wall unit having a ventilation mechanism and a ventilating construction for building capable of realizing cost reduction and simplification of work and offering good ventilation. SOLUTION: A ventilation mechanism 20 is provided only at the upper side of a curtain wall unit 10. Thus, the cost can be reduced compared to the conventional one which has the ventilation mechanism at the top and bottom; and also the assembly work for the curtain wall unit 10 can be performed easier. In addition, the ventilation mechanism 20 is installed at the boundary portion of each story, and the second and third openings 22 and 23 are communicated at the lower ventilating mechanism 20 and the first and second openings 21 and 22 are communicated at the upper ventilation mechanism 20, therefore, the ventilation can be performed very properly by taking in outdoor air from the lower side and exhausting the air from the upper side and installing one ventilating mechanism 20 at each curtain wall unit 20.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a curtain wall unit with a ventilation mechanism and a ventilation structure for a building.

[0002]

BACKGROUND ART It has been conventionally known to form a curtain wall, which is an outer wall of a building, with a plurality of curtain wall units arranged in parallel in the vertical direction and the horizontal direction. In addition, it is also known to provide a ventilation mechanism including a damper that can be opened and closed on both upper and lower sides of the curtain wall unit. According to these curtain wall units, the outside air is introduced into the room from the lower ventilation mechanism, and the indoor air is discharged to the outside from the upper ventilation mechanism, whereby the indoor ventilation can be performed well.

Furthermore, in recent years, there is known a building having a so-called double-skin structure having an inner window on the indoor side of the curtain wall. In such a building, there is a space between the curtain wall and the inner window, but the air in this space becomes hotter than the outside air due to sunlight, especially during the daytime in the summer, so the indoor cooling efficiency is improved. In order not to lower it, it is necessary to ventilate the air and discharge it to the outside. Also in this case, the above-mentioned upper and lower ventilation mechanisms are used.

[0004]

However, in the prior art, since the upper and lower ventilation mechanisms are provided for each curtain wall unit on each floor, the cost is high and the structure of the curtain wall unit is complicated, and the assembling work is complicated. There is a problem.

Incidentally, such a problem is not limited to the case where the outer wall is formed by the curtain wall. For example, even if the outer wall of the building is made of outer wall materials such as tiles that are attached to concrete wall surfaces, ventilation mechanisms may be installed above and below the sash window on each floor, which again costs money and makes the construction complicated. .

An object of the present invention is to provide a curtain wall unit with a ventilation mechanism, which can realize cost reduction and simplification of work, and can perform good ventilation, and a ventilation structure for a building.

[0007]

A curtain wall unit with a ventilation mechanism according to the present invention is provided with a ventilation mechanism located at the boundary between the upper and lower floors of a building, and this ventilation mechanism is located below the boundary. The first opening on the indoor side of the floor
An opening part, a second opening part that opens to the outside, a third opening part that opens to the indoor side of the upper floor, and a flow path switching member that switches the communication states of these first to third openings. The flow path switching member includes at least a ventilation flow path forming position that communicates the first opening and the second opening, an intake flow path forming position that communicates the second opening and the third opening, and a second opening. Is provided so as to be capable of being biased to a closed position for closing the first and third openings.

According to such a curtain wall unit, since it is only necessary to provide the ventilation mechanism at one position corresponding to the boundary between the upper and lower floors, it is necessary to provide the ventilation mechanism on both the upper and lower sides unlike the conventional case. No, cost is reduced. Also, since the number of ventilation mechanisms is small, the work of assembling the curtain wall unit becomes easy. Further, in this curtain wall unit, by arranging the ventilation mechanism at the boundary of each floor, it is possible to perform ventilation in a predetermined floor as follows. That is, in the ventilation mechanism at the lower boundary portion provided in one curtain wall unit, the flow passage switching member is set to the intake flow passage forming position to take in outside air into the room, and the upper side provided in another curtain wall unit. In the boundary ventilation system, the flow path switching member may be set to the ventilation flow path forming position to discharge the indoor air. Therefore, good ventilation can be performed without providing a ventilation mechanism both above and below one curtain wall unit.

In the curtain wall unit with a ventilation mechanism of the present invention, when the flow path switching member is in the closed position,
It is desirable to connect the first opening and the third opening. According to such a curtain wall unit, the rooms on the upper and lower floors communicate with each other through the first opening and the third opening by setting the flow path switching member of the ventilation mechanism at the boundary of each floor to the closed position. And, for example,
Even in a high-rise building, it is possible to easily connect all the rooms from the bottom floor to the top floor of the building.

Further, in the curtain wall with a ventilation mechanism of the present invention, the flow path switching member may be provided so as to switch the biasing position by rotating. In such a curtain wall, the flow path switching member is driven by an electric motor or the like, which facilitates automation of switching operation.

On the other hand, in the ventilation structure for a building of the present invention, a ventilation mechanism is provided at the boundary between the upper and lower floors.
When viewed from the boundary portion, a first opening opening to the indoor side of the lower floor, a second opening opening to the outside of the room, a third opening opening to the indoor side of the upper floor, and these first to first openings A flow path switching member that switches the communication state of the three openings, the flow path switching member including at least a ventilation flow path forming position that allows the first opening and the second opening to communicate with each other, a second opening and a second opening. It is characterized in that it is provided so as to be capable of being biased to an intake passage forming position for communicating the three openings and a closing position for closing the first and third openings with respect to the second opening.

In such a ventilation structure for a building, even when the outer wall of the building is formed by a curtain wall,
Fewer ventilation mechanisms reduce costs and facilitate building construction. Further, by operating the flow path switching member of the ventilation mechanism, as described above, the ventilation can be favorably performed.

Further, in the ventilation structure for a building of the present invention, an inner window is provided in the room at a position separated from the outer wall by a predetermined distance, and a communication space between the inner window and the outer wall is located above the room. It is preferable that the first opening of the ventilation mechanism provided and the third opening of the ventilation mechanism provided on the lower side are open. With such a ventilation structure, even in the case of a so-called double-skin structure building in which an inner window is provided in the room, it becomes possible to satisfactorily ventilate the distribution space between the outer wall and the inner window. During the daytime, there is no concern that the temperature in the distribution space becomes excessively high, and the indoor cooling efficiency is improved.

At this time, in the ventilation structure for a building of the present invention, the indoor side of the inner window communicates with the distribution space on the floor side or the ceiling side, and communicates with the distribution space in the space above the ceiling or the underfloor space. It is desirable that a lead-in channel be provided. According to such a ventilation structure, the air on the indoor side of the inner window comes to be drawn into the drawing flow path through the circulation space, so if the drawn air is sent again to the indoor side,
Air circulation can be performed indoors.

Further, in the ventilation structure for a building of the present invention, a plurality of the ventilation mechanisms are arranged in parallel in the horizontal direction along the boundary between the upper and lower floors, and in the room sandwiched between the boundary between the upper and lower floors. It is preferable that one or more of the upper ventilation mechanisms and one or more of the lower ventilation mechanisms be operably provided. According to such a ventilation structure, the indoor ventilation is performed by the upper and lower ventilation mechanisms, and the other upper ventilation mechanism is used for ventilation of the upper floor room and the other lower ventilation mechanism is used. By using each for the ventilation of the room on the lower floor, the ventilation of each floor will be surely performed.

Furthermore, in the ventilation structure of the above building,
The ventilation structure may include the ventilation mechanism of the curtain wall unit according to any one of claims 1 to 3, and a plurality of these curtain wall units are arranged side by side in a vertical direction and a horizontal direction. This makes it possible to form the outer wall of the building with a curtain wall while achieving the object of the present invention.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an external view of a curtain wall 1 including a plurality of curtain wall units 10 according to this embodiment. 2 is a vertical sectional view of the curtain wall 1, FIG. 3 is a horizontal sectional view of the curtain wall 1, and FIG. 4 is a schematic sectional perspective view thereof.

In the curtain wall 1, a plurality of curtain wall units 10 constituting the curtain wall unit 1 are vertically and horizontally arranged side by side between the floor slabs 3 on each floor of the building 2, and the floor slabs 3 are shown in the drawing. Not fixed through the liner. Such a curtain wall unit 10 is provided with a rectangular frame body 14 in which an upper frame 11, a lower frame 12, and left and right vertical frames 13 are framed around four sides, and a glass surface material 15 is fitted into the frame body 14. Has been.

The lower frame 12 and each vertical frame 13 of the frame body 14 are
Each is made of a single extruded profile made of aluminum and is joined together by screws. On the other hand, the upper frame 11
Is composed of a plurality of extruded aluminum members, and a ventilation mechanism 20 for ventilating the interior of the building 2 is provided therein. The upper frame 11 is the curtain wall unit 10
Are fixed to the floor slab 3, they are located at a height corresponding to the upper surface of the floor slab 3, that is, at a height corresponding to the boundary between the upper and lower floors.

Specifically, the upper frame 11 is, as shown in an enlarged manner in FIGS. 5 and 6, an outdoor side member 16 having a holding portion 16A for holding the glass surface material 15, and the outdoor side member. 1
The indoor side member 17 disposed on the indoor side of 6 and the upper side member 18 disposed above the outdoor side member 16 and the indoor side member 17 and facing the lower frame 12 of the curtain wall unit 10 on the upper floor side. I have it.

Between the outdoor member 16 and the indoor member 17, there is formed a first opening 21 that is open to the indoor side of the floor covered by the curtain wall unit 10.
A second opening 22 that is open to the outside (outside the building) is formed between the outdoor member 16 and the upper member 18. A third opening 23 is formed between the indoor member 17 and the upper member 18 and opens to the indoor side of the upper floor.

A ventilation device 24 is provided in the upper frame 11 as described above.
Are arranged. The ventilation device 24 includes a pair of cylindrical bearing housings 25 arranged adjacent to the inner surfaces of the left and right vertical frames 13 so as to be surrounded by the outdoor member 16, the indoor member 17, and the upper member 18, and each bearing. A ventilation door 26 as a flow path switching member pivotally supported between the housings 25,
This ventilation door 26 is also made of extruded aluminum material.

The ventilation door 26 is connected to an electric motor (not shown) disposed in the bearing housing 25 at one end in the horizontal direction, and rotates about the rotation center 26A. Further, the rotation and stop of the ventilation door 26 by the electric motor are automatically performed by operating an operation panel (not shown) arranged in the room.

Further, the ventilation door 26 has a Y-shaped cross section and is provided with three hollow plate-shaped switching portions 27, 28, 29 provided at 120 ° intervals. Dry sealing materials 271, 281, 291 are provided at the tips of the switching units 27-29. These sealing materials 271, 281, 291
When the ventilation door 26 rotates, the outdoor side member 1
6, contacting the contact surfaces 161, 171, 181 of the indoor side member 17 and the upper side member 18, respectively.

Switching unit 2 of switching units 27, 28 and 29
7 is provided with a circulation opening 27A penetrating the front and back. Due to this circulation opening 27A, in the state shown in FIG.
The second opening 22 and the third opening 23 communicate with each other. The position of the ventilation door 26 that is biased in this state is the intake flow passage formation position.

Although not shown, the ventilation door 26 is
120 ° counterclockwise from the intake passage forming position shown in FIG.
The rotated position is a position where the switching portion 27 is close to the contact surface 161 of the outdoor member 16, and is a ventilation flow passage forming position where the first opening 21 and the second opening 22 communicate with each other through the circulation opening 27A. is there.

Further, at the position where the ventilation door 26 is rotated by 120 ° from the ventilation flow separation forming position, the switching portions 28 and 29 have the contact surfaces 161 and 1 of the outdoor member 16 and the upper member 18, respectively.
It is a closed position in which the first and third openings 21 and 23 are closed to the second opening 22 in the vicinity of 81, respectively. Then, at the closed position, the switching portion 27 is close to the contact surface 171 of the indoor member 17, and the communication opening of the switching portion 27 allows the first opening portion 21 and the third opening portion 23 to communicate with each other.

At the lower end of the indoor member 17, the cross member 3 is attached.
1 is provided, and a suction grill 32 having an opening 32A is disposed between the cross member 31 and the outdoor member 16. A ventilation grill 33 having an opening 33 </ b> A is arranged on the outdoor side of the outdoor side member 16 and the upper side member 18. In the upper member 18, another horizontal member 34 is provided on the lower surface on the indoor side, and the horizontal member 34 presses the bearing housing 25 to prevent the bearing housing 25 from rattling.

Furthermore, on the upper surface of the upper member 18, a dry seal material 3 for rain barrier and wind barrier is provided.
5 and 36 are attached respectively. These sealing materials 35 and 36 are attached over the vertical frame 13 and the lower frame 12 (FIGS. 5 and 6), and are in contact with the sealing materials 35 and 36 of another adjacent curtain wall unit 10.

Next, referring to FIGS. 1 to 6, the building 2
Will be described. In each of the floors A to C (FIG. 1) of the building 2, the floor 4 is located at a predetermined height on the lower floor slab 3.
1 is provided, and the space between the floor 41 and the floor slab 3 is an underfloor space 42. On the other hand, in the upper floor slab 3,
A ceiling 43 is provided at a position lower than the lower surface by a hanging method, and a space between the ceiling 43 and the floor slab 3 is a ceiling back space 44.

On the outside of the floor 41 and the ceiling 43, an inner window 45 is provided at a position separated from the curtain wall 1 by a predetermined distance and extending between the upper and lower floor slabs 3. Inner window 4
Reference numeral 5 denotes a fit-and-kill window 46 on the ceiling 43 side and a fit-and-kill window 46.
The sliding door 47 is provided on the lower side of the sliding window 47, and each shoji 48 of the sliding window 47 can be opened and closed. The space between the inner window 45 and the curtain wall 1 is a distribution space 49, as shown in FIGS. The distribution space 49 communicates with the third opening 23 of the ventilation mechanism 20 on the floor 41 side, and the ventilation mechanism 2 on the ceiling 43 side.
It is communicated with the first opening 21 of No. 0.

Inside the inner window 45 is an indoor space 51,
The indoor space 51 communicates with the underfloor space 42 via a floor opening 41A provided on the inner window 45 side of the floor 41.
The underfloor space 42, as shown in FIG.
5 communicates with the circulation space 49 through a lower side opening 45A provided in the lower portion. Therefore, the indoor space 51 is the floor 4
The first side communicates with the distribution space 49.

A discharge grill 411 is attached to the floor opening 41A. On the lower side of the distribution space 49, at the same height as the discharge grill 411, the outlet grill 491 is provided.
Is attached. In addition, the lower opening 4 of the inner window 45
An opening / closing damper 451 that opens only to the outdoor side is provided in 5A, and the air in the indoor space 51 flows to the distribution space 49 side, but the air is supplied from the distribution space 49 side to the indoor space 51 side.
It doesn't get inside. Furthermore, the distribution space 4 on the upper and lower floors
9 are blocked by an interlayer blocking member 492 and a closing plate 493 arranged between the floor slab 3 side and the upper frame 11 of the curtain wall unit 10.

The above-ceiling space 44 communicates with a circulation space 49 through an upper side opening 45B provided in the upper part of the inner window 45. In the space 44 above the ceiling, one end is an upper opening 45.
A lead-in duct 52 is provided as a lead-in passage that is in communication with B and has the other end in communication with an air conditioner (not shown). Therefore, the air in the circulation space 49 is drawn into the drawing duct 52 through the upper opening 45B by operating the air conditioner.

That is, in this building 2, the indoor space 51
The air inside is returned to the air conditioner through the distribution space 49, and then, again, for example, through a cleaning filter or the like, and the ceiling 43 is again supplied.
It is possible to blow the air into the indoor space 51 from the air outlet (not shown), and air is circulated in the indoor space 51. A suction grill 53 is attached to the outside of the upper opening 45B.

Hereinafter, some modes of air flow when a plurality of curtain wall units 10 are attached to such a building 2 will be described with reference to FIGS. 7 to 10.

FIG. 7 shows a case where ventilation is performed in the distribution space 49. In this case, the ventilation mechanism 20 of the curtain wall unit 10 that forms the distribution space 49.
Then, the ventilation door 26 is biased to the ventilation flow passage forming position,
A circulation space 49 through the opening 21 and the second opening 22.
Communicates with the outside of Building 2.

On the other hand, the ventilation mechanism 20 on the lower side of the distribution space 49, that is, the curtain wall unit 10 on the lower floor side.
In the ventilation mechanism 20 of FIG. 6, the ventilation door 26 is urged to the intake flow passage forming position, and as shown in FIG. 6, the outside of the building 2 and the distribution space 49 communicate with each other through the second opening 22 and the third opening 23. is doing.

As a result, the outside air from the outside of the building 2 enters the circulation space 49 from the lower ventilation mechanism 20, and the air originally existing in the circulation space 49 becomes
It is discharged from the upper ventilation mechanism 20 to the outside, and the distribution space 49
The inside is ventilated.

At this time, as shown in FIG. 1, among the plurality of curtain wall units 10 arranged horizontally in each of the layers A to C, every other curtain wall unit 10A is arranged as follows. The ventilation door 26 of the ventilation mechanism 20 is biased to the ventilation flow passage forming position, and in the curtain wall unit 10B disposed between the curtain wall units 10A, the ventilation door 26 is biased to the intake flow passage forming position. By doing so, the ventilation of the distribution space 49 can be performed at the same time in each of the floors A to C, and thus each floor of the entire building 2.

For example, in the layer B of FIG. 1, the ventilation mechanism 20 of the curtain wall unit 10A arranged in the layer B and the ventilation mechanism 20 of the curtain wall unit 10B arranged in the layer C on the lower floor. Can be operated from the indoor side, and it is also possible to individually perform ventilation in each of the floors A to C when necessary.

FIG. 8 shows a case where the upper and lower distribution spaces 49 are communicated with each other. In this case, in the ventilation mechanism 20 of each curtain wall unit 10, the ventilation door 2
6 is urged to the closed position, the second opening 22 is closed to block the distribution space 49 from the outside, and the distribution spaces 49 on the upper and lower floors communicate with each other through the first and third openings 21 and 23. This allows the distribution spaces 49 of the entire building 2 to communicate with each other vertically.

FIG. 9 shows the case where fresh outdoor air is taken into the indoor space 51. In this case, in the ventilation mechanism 20 of each curtain wall unit 10, the ventilation door 26 is biased to the intake passage forming position, and the sliding window 47 of the inner window 45 is opened. As a result, outside air can be taken into the indoor space 51 from the lower ventilation mechanism 20.

As shown in FIGS. 1 and 7, the ventilation door 26 in the curtain wall unit 10A is biased to the ventilation flow passage forming position, and the ventilation door 26 in the curtain wall unit 10B is moved to the intake flow passage forming position. Even when biased to
If the sliding window 47 is opened, outside air can be taken into the indoor space 51 in each of the floors A to B. In such a case, for example, even if the outside air is taken in at the level B, the sliding window 47 is closed at the levels A and C so that the outside air is taken in at the level B. Ventilation of the distribution space 49 can be performed independently.

FIG. 10 shows a case where the air in the indoor space 51 is circulated. In this case, in order to prevent outside air from entering the indoor side, in the ventilation mechanism 20 of each curtain wall unit 10, the ventilation door 36 is biased to the closed position. Then, an air conditioner (not shown) is operated, and the air in the indoor space 51 is returned to the air conditioner through the underfloor space 42, the circulation space 49, and the lead-in duct 52, and blown out into the indoor space 51 again.

According to this embodiment, the following effects are obtained. (1) In the curtain wall unit 10, the ventilation mechanism 20
Since it is provided only on the upper side, the cost of the curtain wall unit 10 can be reduced as compared with the conventional case where ventilation mechanisms are provided on both the upper and lower sides. And
Since the ventilation mechanism 20 is only on the upper side, the assembly work of the curtain wall unit 10 can be easily performed.

(2) Also, the curtain wall unit 10
When is fixed to the building 2 side, since the ventilation mechanism 20 is located corresponding to the floor slab 3 that is the boundary portion of each floor, for example,
When performing ventilation in the layer B shown in FIG. 1, the lower ventilation mechanism 20 communicates the second and third openings 22 and 23, and the upper ventilation mechanism 20 communicates the first and second openings 21 and 21. It is only necessary to make 22 communicate with each other, and outside air can be taken in from the lower ventilation mechanism 20 and air existing originally in the room can be discharged from the upper ventilation mechanism 20. Only one ventilation mechanism 20 is provided for each curtain wall unit 10. However, good ventilation is possible.

(3) In the ventilation mechanism 20, since the first and third openings 21 and 23 can be communicated with each other while being shielded from the outside, even if the building 2 is a high-rise building, All the rooms from the lower floor to the top floor can be easily communicated with each other, and a chimney effect can be provided in the communication portion.

(4) Since the ventilation door 26 of the ventilation device 24 is provided so that the biasing position can be switched by rotating, the ventilation door 26 can be easily operated by utilizing the rotation of the electric motor. Therefore, the switching operation can be easily automated.

(5) On the other hand, the curtain wall unit 10
In the building 2 in which is installed, the first ventilation mechanism 20 of the upper side is provided in the distribution space 49 between the inner window 45 and the curtain wall 1.
Since the opening 21 and the third opening 23 of the lower ventilation mechanism 20 are opened, even if the interior of the building 2 has a so-called double-skin structure, the ventilation of the distribution space 49 is improved. This can be performed, and for example, during the daytime in the summer, it is possible to prevent the temperature in the distribution space 49 from becoming excessively high and improve the cooling efficiency of the indoor space 51.

(6) In the building 2, the indoor space 51 communicates with the distribution space 49 through the underfloor space 42, and the distribution space 4
Since 9 communicates with the lead-in duct 52 arranged in the space 44 above the ceiling, the air in the indoor space 51 is transferred to the circulation space 49.
Then, the air is circulated in the indoor space 51 by returning the air to the air conditioner through the lead-in duct 52 and blowing the air again into the indoor space 51.

(7) As shown in FIG. 1, in each of the layers A to C, the ventilation mechanisms 20 of the curtain wall units 10A arranged alternately and the curtain wall units 10B arranged alternately on the lower floor side. Since the ventilation space 20 is used to ventilate the distribution space 49, all layers A to
V can be surely ventilated. At this time, in each of the floors A to C, since the upper ventilation mechanism 20 and the lower ventilation mechanism 20 provided for ventilation can be operated, the distribution space 49
It is not necessary to perform the ventilation of each of the layers A to C at the same time, and the ventilation can be performed individually as needed.

The present invention is not limited to the above embodiment. For example, the ventilation door 26 of the above embodiment
Has a Y-shaped cross section, the ventilation door is not limited to this, and the ventilation door 60 has a cross-shaped cross section as shown in FIG.
May be The ventilation door 60 includes a switching unit 61 having a circulation opening 61A and three switching units 62, 63, 64 provided at 90 ° intervals to the switching unit 61, and three switching units (Fig. 11). Then, when the switching portions 62 to 64) are in contact with the respective contact surfaces 161, 171, 181, the remaining one switching portion (switching portion 61 in FIG. 11) is positioned in the first opening 21. It has become. When such a ventilation door 60 is used, at the position shown in FIG.
The 1st-3rd opening parts 21-23 can be completely closed, for example, the air circulation of the indoor space 51 is made into the distribution space 49 of the upper and lower floors.
Can be performed in a state in which the air flow is shut off, and the influence can be reduced even when the distribution space 49 is ventilated on the upper floor or the lower floor or the outside air is taken in.

Further, the structure of the ventilation door 26 is not limited to the one provided with the ventilation doors 26 and 60 having a Y-shaped cross section or a cross shape, and is, for example, a rotation having an outer peripheral surface in contact with each contact surface 161, 171, 181. It may be a type in which a possible cylindrical body is provided, and a recess or the like along the axial direction is provided in a part of the outer peripheral surface of the main body, and the recesses are used to communicate the openings. Furthermore, as the flow path switching member according to the present invention,
The configuration may be such that the communication state between the openings is switched by rotating it, or the communication state is switched by tilting. In short, the flow path switching member has only to be configured so as to be urged to switch to the ventilation flow path forming position, the intake flow path forming position, and the closed position, and the specific structure thereof is arbitrarily determined for implementation. You may

In the above embodiment, the ventilation mechanism 20 is provided on the upper side of the curtain wall unit 10, but
As shown in FIG. 12, the present invention includes the case where the curtain wall unit 10 is provided only on the lower side. Further, as shown in FIG. 13, in the curtain wall unit 10 extending vertically around the floor slab 3, the ventilation mechanism 20 is provided at the center of the curtain wall unit 10, that is, at a position corresponding to the floor slab 3. Good. In short, in one curtain wall unit, the ventilation mechanism including the first to third openings and the flow path switching member may be provided at the position corresponding to the boundary between the upper and lower floors.

Further, in the ventilation structure for a building according to the present invention, the outer wall of the building does not need to be formed by a curtain wall, and it is formed by mounting an appropriate outer wall material such as tiles on the cast concrete wall surface. It may be an outer wall or an outer wall in which a sash window is installed in an opening provided in such a wall surface. Even when the outer wall of the building is formed by a curtain wall, this curtain wall is not constructed by a curtain wall unit, but an upright / invisible position installed at the site, or an opening defined by these upright / invisible positions. You may comprise by the face material arrange | positioned in a part. Even such a building is included in the inventions of claims 4 to 7 as long as it has the ventilation mechanism according to the present invention.

In the above-mentioned embodiment, the inner window is provided in the room of the building 2. However, such an inner window may be provided if necessary. Even if it is not provided, the ventilation structure of the building is
It is included in the inventions of claim 4, claim 7, and claim 8.

[0058]

As described above, according to the curtain wall unit and the ventilation structure for a building of the present invention, there is an effect that cost reduction and work simplification can be realized, and moreover, good ventilation can be achieved.

[Brief description of drawings]

FIG. 1 is an external view showing a curtain wall configured by a curtain wall unit according to an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view showing the curtain wall.

FIG. 3 is a cross-sectional view showing the curtain wall.

FIG. 4 is a perspective view schematically showing a cross section of the curtain wall.

FIG. 5 is a vertical cross-sectional view showing a main part of the curtain wall.

FIG. 6 is an enlarged vertical cross-sectional view showing a main part of FIG.

FIG. 7 is a cross-sectional view taken along the line VII-VII in FIG. 1, which is a vertical cross-sectional view showing a state where the circulation space of the embodiment is ventilated.

FIG. 8 is a vertical cross-sectional view showing a state in which the distribution spaces are communicated with each other.

FIG. 9 is a vertical cross-sectional view showing a state where outside air is taken into the building of the embodiment.

FIG. 10 is a vertical cross-sectional view showing how air is circulated in the building.

FIG. 11 is a vertical sectional view showing a modified example of the present invention.

FIG. 12 is a vertical sectional view showing another modification of the present invention.

FIG. 13 is a vertical cross-sectional view showing still another modified example of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Curtain wall which is an outer wall, 2 ... Building, 10 ... Curtain wall unit, 20 ... Ventilation mechanism, 21 ... 1st
Opening part, 22 ... 2nd opening part, 23 ... 3rd opening part, 26,
60 ... Ventilation door which is a flow path switching member, 42 ... Underfloor space, 4
4 ... space behind the ceiling, 45 ... inner window, 49 ... distribution space, 52 ...
A lead-in duct that is a lead-in passage.

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 2E001 DB02 EA01 EA05 FA04 FA35                       GA01 HB04 LA01 LA11 NA05                       NA07 NB01 NB03 NB05 NC02                       ND11                 2E002 NA01 NA04 NB02 NC01 PA01                       QA04 QB01 QC03 RB06 UB02                       UB04 WA07 XA16

Claims (8)

[Claims] 1. A ventilation mechanism is provided at a boundary portion between upper and lower floors of a building, and the ventilation mechanism has a first opening portion which is open to an indoor side of a lower floor when viewed from the boundary portion and an outdoor portion. A second opening that opens,
A third opening that opens to the indoor side of the upper floor and a flow path switching member that switches the communication state of the first to third openings are provided, and the flow path switching member includes at least the first opening and the first opening. A ventilation flow passage forming position for communicating the two openings, and an intake flow passage forming position for communicating the second opening and the third opening,
A curtain wall unit with a ventilation mechanism, which is provided so as to be capable of being biased to a closed position for closing the first and third openings with respect to the second opening. 2. The curtain wall unit with a ventilation mechanism according to claim 1, wherein the first opening portion and the third opening portion communicate with each other when the flow path switching member is in the closed position. 3. The curtain wall unit with a ventilation mechanism according to claim 1, wherein the flow path switching member is provided so as to switch the biasing position by rotating. 4. A ventilation mechanism is provided at the boundary between the upper and lower floors, and the ventilation mechanism has a first opening that is open to the indoor side of the lower floor and a second opening that is open to the outside of the room when viewed from the boundary. The opening, the third opening that opens to the indoor side of the upper floor, and the first opening
Or a flow passage switching member for switching the communication state of the third opening portion, the flow passage switching member including at least a ventilation flow passage forming position for communicating the first opening portion and the second opening portion, and a second opening portion. And an intake passage forming position for communicating the third opening,
A ventilation structure for a building, which is urged to a closed position where the first opening and the third opening are closed with respect to the second opening. 5. An inner window is provided in the room at a position separated from the outer wall by a predetermined distance, and a first opening of a ventilation mechanism provided on the upper side of the room is provided in a distribution space between the inner window and the outer wall. The ventilation structure for a building according to claim 4, wherein the portion and the third opening of the ventilation mechanism provided on the lower side are opened. 6. The indoor side of the inner window communicates with the distribution space on the floor side or the ceiling side, and the lead-in flow path communicating with the distribution space is provided in the space above the ceiling or the underfloor space. Ventilation structure of the building described in 5. 7. A plurality of the ventilation mechanisms are arranged side by side in a horizontal direction along a boundary portion between upper and lower floors, and in a room sandwiched between the boundary portions between the upper and lower floors, among the plurality of upper ventilation mechanisms. 7. The ventilation structure for a building according to claim 4, wherein one or more of the above and one or more of a plurality of lower ventilation mechanisms are operably provided. 8. The building according to claim 4, wherein the ventilation structure includes the ventilation mechanism of the curtain wall unit according to any one of claims 1 to 3. Ventilation structure.