JP2001073645A - Ventilator for building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilator for a building capable of automatic control of air circulation without generating noise. SOLUTION: The main body 10 of a ventilator mounted on a sash door opening or closing a window has, as in the case of a conventional structure, a ventilating passage 14. A ventilating opening 11x for the air passage 14 to communicate with the indoors is opened or closed by an operating plate 13, and the operating plate 13 forming a part of the main body 10 is attached with the upper edge part of a flexible sheet 21 formed out of cloth such as synthetic fabric. The sheet 21 hands down when a difference in atmospheric air pressure between the indoors and the outdoors is zero to open the air passage 14 and, when the sheet is blown by a gale, it sways before the wind moves to the indoor side and closes the air passage 14. It is thus possible to prevent a gale from blowing into the indoors and blocks the invasion of rain drops, dust, or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation device mounted on a building.

[0002]

2. Description of the Related Art A ventilator equipped with a valve which opens and closes by a pressure difference without manual operation by a user has been developed. For example, Japanese Unexamined Patent Publication No. Hei 5-295959 discloses a rattle-shaped ventilation device which is fitted from the outdoor side into a hole in a building wall which separates the indoor and outdoor areas. This ventilator includes an apparatus main body having a ventilation path and a number of blade members on the outdoor side, and valve means arranged in the ventilation path. The valve means has a control plate whose one edge is rotatably supported by the apparatus main body. When there is no wind, the control plate opens the ventilation path by its own weight. When a strong wind blows like a typhoon or the like, the blade member alone cannot prevent the strong wind, but the control plate is rotated upward by this strong wind and closed, preventing the blow of the strong wind, and eventually rain, dust, sand, etc. To prevent intrusion.

[0003] Japanese Utility Model Publication No. 7-35096 also discloses a rattle-shaped ventilation device based on the same technical idea. This ventilator has a large number of blade members arranged vertically at intervals, a ventilation path is formed between adjacent upper and lower blade members, and a control plate is arranged in each ventilation path. This control plate is also rotatably supported by the blade member, and is in an open position by its own weight, and rotates upward in strong winds to close the ventilation path and prevent blowing of strong winds.

Japanese Utility Model Publication No. Hei 7-29165 is similar to the above Japanese Utility Model Publication No. Hei 7-35096, except that the control plate is made of an elastic member, and is elastically deformed in a strong wind to block the ventilation path.

Japanese Patent Application Laid-Open No. Hei 5-171877 discloses a ventilator mounted on a door that separates a special room such as a bathroom or a toilet from another room. In this ventilation device, the device body has a wall facing the bathroom and a wall facing the other room, a ventilation path is formed between these walls, and the ventilation path is formed through a ventilation hole formed in these walls. It is connected to the bathroom and the room on the opposite side of the bathroom. A plurality of control plates are arranged vertically above and below the ventilation path. The upper edge of these control plates is rotatably supported, and when there is no pressure difference between the bathroom and another room, the control plate hangs down by its own weight to block the ventilation path, preventing leakage of moisture from the bathroom. In. When the bathroom side fan is driven and a negative pressure is applied to the bathroom, the control plate is rotated by the pressure difference between the two sides to open a ventilation path, so that exhaust from the bathroom to the outside can be performed smoothly. .

[0006]

The above-mentioned ventilator has the advantage that the air flow in the ventilation passage can be controlled without user operation, but the control plate is rigid and has a relatively large weight. As a result, an impact sound is generated by hitting the main body of the apparatus at the time of opening and closing, thereby causing a problem of noise. Further, since the control plate is made of an extruded material or the like, it is relatively expensive.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and in a ventilating device to be mounted on a building, a hollow device main body having a ventilation passage and a ventilation device disposed in the ventilation passage are provided. And a flexible sheet which is shifted in accordance with the pressure difference between the two sides to control the flow of air in the ventilation path.

According to the present invention, various measures can be taken for attaching the sheet to the apparatus main body, and a restricting member for restricting the shift of the sheet or weighting the sheet may be provided.

Further, the present invention may be applied to a ventilator mounted on a door that opens and closes a window, or a ventilator mounted on a door that separates a special room such as a bathroom from another room. It may be applied, may be applied to a wall-mounted ventilation device mounted on a wall, may be applied to a hood-shaped ventilation device mounted on a wall, or may be applied to a ventilation device used as a ventilation fan It may be applied or any other building ventilation system.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a ventilation system for a building according to the present invention. The building ventilator of the present invention can be used for various applications. First, a ventilator provided in a sash door of a window (hereinafter, referred to as a window ventilator).
(First to Tenth Embodiments) will be described.

1 to 3 show a first embodiment of a window ventilation device. This ventilator includes a hollow device main body 10 that extends horizontally and elongated in a direction perpendicular to the paper surface of FIG. 1, and valve means 20. The apparatus body 10 is fitted into the lower part of the sash door along the upper frame, and the indoor body 11, the outdoor body 12, the operation plate 13, and both ends of the molds 11, 12 made of extruded aluminum are used. And a closing cap (not shown). The shape members 11 and 12 are connected to each other at an upper end portion, and a ventilation path 14 that connects indoors and outdoors is formed inside. The ventilation path 14 is formed to be elongated in the longitudinal direction of the apparatus main body 10.

The indoor side member 11 has a vertical flat wall 11a facing the indoor, and a ventilation opening 11x connecting the ventilation path 14 to the indoor is formed in the wall 11a. The vents 11x are formed of vertically elongated slits, and are formed in a large number in the longitudinal direction of the apparatus main body 10. A lower end portion of the indoor side shape member 11 is a fitting portion 11b for fitting a glass plate (not shown).

On the other hand, the outdoor side mold member 12 has a vertical flat wall 12a facing the outside. On this wall 12a, a number of vertically long blow-out ports 12x are arranged in the longitudinal direction of the apparatus main body 10. Is formed. Between the lower edge of the wall 12a of the outdoor side molding 12 and the fitting portion 11b of the indoor side molding 11
An elongated ventilation port 15 extending in the longitudinal direction of the apparatus main body 10 is formed, and the ventilation path 14 is formed through the ventilation port 15.
Is connected to the outdoors. The blowing port 12x is located lower than the ventilation port 11x and higher than the ventilation port 15.

The operating plate 13 has an upper edge portion having a shaft portion 13.
The shaft portion 13a is accommodated in a tapping hole 12c formed at the upper end of the outdoor side mold member 12 so as to be rotatable and slidable in the longitudinal direction. A plurality (for example, two) of projections 13b are formed at a lower edge of the operation plate 13 at intervals. On the other hand, a plurality of (for example, two) cam blocks 16 are fixed on the back surface of the indoor side molding 11 at intervals in the longitudinal direction. The projections 13b of the operation plate 13 are inserted into cam grooves 16a formed on the upper surfaces of the cam blocks 16. The cam groove 16a is inclined with respect to the longitudinal direction of the apparatus body 10 when viewed from above.

An operation knob (not shown) slidable by a short stroke in the longitudinal direction of the apparatus main body 10 is provided on the wall 11a of the indoor side molding member 11. The operation knob is fitted in an engagement hole (not shown) formed in the operation plate 13. When the operation knob is slid in the longitudinal direction, the operation plate 13 also slides in the same direction. At this time, the protrusion 13 b of the operation plate 13
a, and moves obliquely with respect to the wall 11a, whereby the operating plate 13 rotates about the shaft portion 13a. More specifically, the operating plate 13 is provided with a cushion 13 provided at the lower end thereof by sliding operation of an operation knob.
Rotation is made between a closed position at which c touches the back surface of the wall 11a and an open position along the wall 12a of the outdoor side molding 12 away from the wall 11a.

Next, the valve means 20, which is a feature of the present invention, will be described. The valve means 20 is for controlling the flow of air in the ventilation passage 14, and has a nylon (synthetic fiber) cloth 21 (a flexible thin sheet having water repellency). The cloth 21 has a rectangular shape elongated in the longitudinal direction of the apparatus main body 10, and is hung down with its upper edge attached to the operation plate 13 which is a part of the apparatus main body 10. More specifically, the upper edge of the cloth 21 is
It is sandwiched between an outdoor surface on the upper side of the operating plate 13 and an aluminum strip 22 and is fastened with rivets 23.

As best shown in FIG. 3, the lower edge of the cloth 21 is folded and sewn to form a bag 21a. The bag portion 21a contains a rod-shaped weight 24 made of an elastic material such as rubber.

Next, the operation of the ventilation device having the above configuration will be described. As shown in FIG. 1 (A), when the operating plate 13 is in the closed position and the cushion 13c at the lower end of the operating plate 13 is in contact with the indoor wall 11a, the ventilation plate 14 is blocked by the operating plate 13. There is no ventilation between indoor and outdoor. In this closed state, the upper edge of the cloth 21 is
3, it is separated from the wall 12 a on the outdoor side, the middle portion is hooked on the tip of the cam block 16, and the portion below it hangs vertically from the cam block 16. In the closed state of the operation plate 13, the cloth 21 does not play a role of flow control.

As shown in FIG. 1B, the operation knob 17
When the operation plate 13 is brought to the open position by the operation of
Hangs along the outdoor side wall 12a along with the operation plate 13 as a whole. When the outside is in a windless state (the pressure difference between the indoor and outdoor areas is zero) or in a light wind state, the cloth 21 maintains the hanging state and does not block the ventilation path 14, so that ventilation between the indoor area and the outdoor area is not performed. Will be At this time, since the weight 24 is attached to the lower end edge of the cloth 21, the ventilation state of the ventilation path 14 can be reliably maintained without shaking due to the slight wind.

When the operating plate 13 is opened and a strong wind blows outdoors, such as during a typhoon, the lower portion of the cloth 21 is blown up toward the indoor side as shown in FIG. The ventilation path 14 is shut off such that the lower edge portion is in contact with the wall 11a of the indoor side section member 11. As a result, it is possible to prevent the strong wind from blowing into the room, and to prevent dust and rainwater from entering the room together with the strong wind. In addition, cloth 2
In the first embodiment, it is only necessary to prevent the blowing of a strong wind and prevent the entry of rain and dust, and some air may be allowed to pass.

With the operating plate 13 open, the cloth 2
Numeral 1 is along the wall 12a on the outdoor side, and faces the blowing port 12x formed in the wall 12a. This inlet 12
b, the cloth 21 is applied to the wall 1 of the indoor side member 11.
Since it is pushed toward 1a, the ventilation path 14 can be reliably closed. The lower edge of the cloth 21 has a weight 24.
Is attached, the lower edge of the cloth 21 is not turned up by the gust, and the ventilation path 14 can be closed by securely contacting the wall 11a.

Since the cloth 21 is flexible and light unlike the board, no impact noise is generated even when the cloth 21 contacts the wall 11a. The weight 24 hits the wall 11a, but is not accompanied by the generation of impact noise because it is housed in the bag portion 21b of the cloth 21, is made of an elastic material such as rubber, and is lightweight.

When the outdoor wind stops, the cloth 21 returns to its original hanging position by its own weight, and the ventilation through the ventilation path 14 can be resumed. At this time, the weight 24 can surely return to the original hanging position due to its own weight. Also,
By adjusting the weight of the weight 24, it is possible to determine how strong the wind will block the ventilation path 14.

The above-mentioned cloth 21 can be prevented from being turned up by the cam blocks 16 arranged at intervals in the longitudinal direction of the apparatus main body 10, and from this point also, the cloth 21 reliably returns to the original hanging position. The ventilation through the ventilation path 14 can be resumed. These cam blocks 16 function as the regulating members described in the claims.

Next, another embodiment of the window ventilation device will be described sequentially. In these embodiments, components corresponding to the embodiments described earlier are denoted by the same reference numerals in the drawings, and the details are omitted. In the second embodiment shown in FIG.
B and a heat insulating bridge 17 made of resin interposed between the upper end and the lower end thereof. The mold 11A has a wall 11a that forms the ventilation path 14 so as to face the wall 12a of the outdoor mold 12. The shape member 11B has a wall 11a 'facing indoors. Wall 1
Vents 11x, 11x 'are formed in 1a, 11a'. The operation of the operation plate 13 and the cloth 21 of this embodiment is the same as that of the first embodiment, and is different from the first embodiment only in that the heat insulating function is enhanced.

In the third embodiment shown in FIG. 5 and FIG.
The upper edge portion 1 is attached to the indoor surface of the operation plate 13 by bonding. The air outlet is not formed in the outdoor side shape member 12, and its lower edge is inclined and connected to the indoor side shape member 11, and a large number of ventilation holes 12y are formed at intervals in the longitudinal direction. I have. As shown in FIG. 6, the cloth 21 has cutouts 21x at positions corresponding to the cam blocks 16.
Are formed, and follow the operation plate 13 without being caught on the cam block 16.

In the third embodiment, when the operation plate 13 is closed as shown in FIG. 5A, the cloth 21 is sandwiched between the operation plate 13 and the wall 11a of the indoor side mold member 11. FIG.
When the operation plate 13 is opened to be in a vertical state as shown in (B), the cloth 21 hangs down along the operation plate 13. When a strong wind blows outdoors, the wind blows up from the vent 12y into the ventilation path 14, and at this time, the lower edge of the cloth 21 comes into contact with the wall 11a of the indoor side member 11 while fluttering in the wind. .

In the fourth embodiment shown in FIG. 7 (A), the operating plate 13 is
The first embodiment is different from the first embodiment in that the cloth 21 is supported by 1d and that the cloth 21 is attached not to the operation plate 13 but to the outdoor molding 12. More specifically, a tapping hole 12b (mounting groove) is formed in the outdoor-side mold member 12. The tapping hole 12b is located above the air inlet 12x and the outdoor vent 15 and is located below the indoor vent 11x. A cloth 2 is inserted into the tapping hole 12b together with a hollow rod-shaped push rod 25 made of an elastic material such as rubber.
The upper edge of 1 is depressed. That is, the upper edge of the cloth 21 is sandwiched between the push rod 25 and the inner surface of the tapping hole 12b.

In the fourth embodiment, the cloth 21 is
3 and has no interlocking relationship with the operation plate 13. In the state where the operation plate 13 is opened, when a strong outdoor wind enters through the air inlet 12x and the air vent 15, the cloth 21 flutters due to the wind, and the protrusion 1 formed on the indoor side wall 11a is formed.
1c, the ventilation path 14 is closed. This projection 11
“c” is for supporting the cam block 16 and extends obliquely downward toward the outdoor side wall 12a.

In the fourth embodiment, the upper edge portion of the cloth 21 is not pushed into the tapping hole 12b, and the fabric 21 is not pressed as shown in FIG.
As shown in FIG. 7, a plurality of mounting members 26 having a circular cross section may be accommodated at intervals. This mounting member 26 is
It has a mounting piece 26a projecting from the tapping hole 12b, and the upper edge of the cloth 21 is attached to the mounting piece 26a by bonding or the like. Note that the mounting member 26 is
When the same nylon is used, it may be attached by heat welding.

In the fifth embodiment shown in FIG. 8, as in the fourth embodiment, the cloth 21 is arranged away from the operation plate 13 and below it. However, when the cloth 21 is used as the outdoor material 1
The second embodiment differs from the fourth embodiment in that the second embodiment is not attached to the protrusion 11c of the indoor side mold member 11 but to the protrusion 11c. More specifically, the upper edge of the cloth 21 and the net 27 (a regulating member) are provided on the upper surface of the protrusion 11c.
Are fixed with rivets 23. The net 27 extends to the outdoor side wall 12a, and the wall 12a and the protrusion 1
1c occupies almost the entire area of the ventilation path 14 formed between the front edge and the front edge. The cloth 21 hangs from the leading edge of the protrusion 11c.

In the fifth embodiment, the strong wind from the outside enters through the vent 15 and hits the wall 11a on the indoor side, where it is reversed and travels along the protrusion 11c to hit the cloth 21. As a result, the cloth 21 flutters and comes into contact with the wall 12 a on the outdoor side, thereby closing the ventilation path 14. At this time, the net 27 prevents the cloth 21 from being turned up and folded back on the upper surface of the projection 11c.

The sixth embodiment shown in FIG. 9 is different from the first to fifth embodiments in that an operating plate 18 which opens and closes only by sliding is used instead of an operating plate 13 which opens and closes with rotation. And different. More specifically, the wall 11a of the indoor-side mold member 11 is inclined at an upper portion thereof, and the operation plate 18 is supported on the inclined portion so as to be slidable in the longitudinal direction of the apparatus main body 10.
The operation plate 18 has a control port 18x at the same pitch as the ventilation port 11x. By operating an operation knob (not shown) attached to the operation plate 18, the opening position where the control port 18x matches the ventilation port 11x is controlled. The mouth 18x slides between a closed position shifted from the vent 11x. The upper edge of the cloth 21 is attached to the upper end of the mold 11 by bonding or the like, and the cloth 21 hangs down.

In the sixth embodiment, when the outside is a strong wind, the cloth 21 contacts the operation plate 18 so that the control port 1 is closed.
8x, so that the ventilation path 14 is closed. Since the operation plate 18 is inclined toward the cloth 21, the cloth 21 can contact almost the entire area of the operation plate 18, and the ventilation path 14 can be reliably closed.

The seventh embodiment shown in FIG.
This is different from all the above-described embodiments in that two cloths 21A and 21B are arranged vertically. The arrangement of the upper cloth 21A and its vicinity is the same as that of the sixth embodiment shown in FIG. 9, and the arrangement of the lower cloth 21B and its vicinity is shown in FIG.
Since this embodiment is the same as the fourth embodiment shown in (A), a detailed description thereof will be omitted. In this embodiment, since the two cloths 21A and 21B block the ventilation path 14 similarly to the fourth and sixth embodiments due to the strong wind outside, it is possible to more reliably prevent the strong wind from being blown indoors. it can.

In the eighth embodiment shown in FIG.
In 4, the support shafts 28 (support members) extending in the longitudinal direction of the apparatus main body 10 are horizontally arranged in a direction orthogonal to the longitudinal direction. In addition, the support shaft 2
The both ends of 8 are fixed to caps (not shown) that close both ends of the mold members 11 and 12. The upper edge of the cloth 21 is attached to these support shafts 28 and hangs down. More specifically, the upper edge of the cloth 21 is
The support shaft 28 is attached to the bag portion 21b.
Is inserted.

In the eighth embodiment, when the operating plate 13 is open, ventilation between the indoor and the outdoor can be performed between the plurality of cloths 21. When the wind blows, these cloths 21 suppress the flow of air between the fluttering cloths 21. The cloth 21 is folded by the strong wind from the ventilation opening 15 and overlaps with each other to close the ventilation path 14. At this time, the support shaft 28 also functions as a regulating member that prevents the cloth 21 from being turned up.

In the ninth embodiment shown in FIG.
The upper edge part and the lower edge part are attached to the outdoor side molding 12. More specifically, tapping holes 12b and 12b '(mounting grooves) are formed in the outdoor side mold member 12 so as to be vertically separated. These tapping holes 12b, 12b '
7, the upper edge and the lower edge of the cloth 21 are pushed together with the hollow rod-shaped rubber pushing rods 25 and 25 '. The cloth 21 has upper and lower tapping holes 12.
b, 12b 'are wider than the interval between the tapping holes 12b' in the natural state.
Hanging heavy. A blowing port 12x is formed between the tapping holes 12b and 12b '.

In the ninth embodiment, the strong wind is
When the cloth 21 is blown into the cloth 21, the cloth 21 swells toward the indoor side wall 11 a by blowing the wind, and the indoor side wall 11 a
The projection 11c protrudes from the front edge of the projection 11c, whereby the ventilation path 14 can be closed. The operating plate 13 is open and parallel to the outdoor side wall 12a, and the upper portion of the cloth 21 is regulated by the operating plate 13, so that the swelling to the lower portion can be ensured.

The tenth embodiment shown in FIG. 13 is similar in basic structure to the second embodiment shown in FIG. 4, except that the outdoor frame 12 has a rail receiving portion 12d as an integral upper frame. Different in that. The profile 12 on the outdoor side has a rail receiving portion 12.
d, a wall 12a extending vertically downward from the wall 12a.
a is formed with a vent hole 12y. In addition, a filter 19 that covers the ventilation port 11x ′ is mounted on the indoor side wall 11a ′.

This embodiment is significantly different from the above-described embodiment in that the cloth 21 is not hung down but is placed along the bottom surface of the ventilation passage 14 (the upper surface of the fitting portion 11). More specifically, a tapping hole 11g is formed near the intersection between the wall 11a and the fitting portion 11b in the shape member 11A.
(Mounting groove) is formed, and this tapping hole 1
One edge of the cloth 21 (the edge corresponding to one long side of the rectangle) is attached to 1 g by the push rod 25. The cloth 21 extends along the bottom surface of the ventilation path 14 and the other edge reaches the vicinity of the ventilation port 12y.

In the tenth embodiment, when a strong wind blows while the operation plate 13 is open, the wind blows into the ventilation passage 14 from the ventilation port 12y, and at that time, the cloth 21 is blown up, and the leading edge of the cloth 21 is formed. In contact with the projections 12e constituting the 12 tapping holes, the ventilation path 14 is closed. At this time, since the cam block 16 prevents the cloth 21 from being turned up, the state in which the ventilation path 14 is blocked can be reliably maintained. In addition, the protrusion 11e is formed on the bottom surface of the ventilation passage 14 to lift the middle part of the cloth 21, and the bottom surface of the ventilation passage 14 is a curved surface 11f near the ventilation port 12y.
The formation of the gap between the leading edge of the cloth 21 allows the cloth 21 to be blown up smoothly.

Next, as an eleventh embodiment of the present invention, a ventilation device (hereinafter, referred to as a bathroom ventilation device) mounted on a door between a bathroom (special room) and a dressing room (another room) will be described. ,
This will be described with reference to FIG. The ventilator is mounted on the upper side of the lower frame of the bathroom door.
0 and valve means 20. The apparatus main body 30 includes an aluminum base member 31 and a bathroom-side member 32. The base member 31 is a vertical wall 31a on the undressing room side.
And a fitting portion 31b for fitting the glass G to the upper end thereof, and a fitting portion 31c to be fitted to the lower frame S at the lower end thereof. The vertical wall 31a is provided with a vent 31x composed of a number of vertically long slits.

The bathroom-side mold member 32 has a vertical wall 32a as a bathroom side wall and an inclined wall 32b extending from the lower end thereof along the wall 31a on the undressing room side, and these walls 32a, 32b
Has a number of vents 32x, each of which has a slit.
32y are formed. An air passage 34 is formed between the wall 31a on the dressing room side and the walls 32a and 32b on the bathroom side.

The valve means 20 has the same structure as that of the embodiment shown in FIG. 7, in which the upper edge of the cloth 21 is formed through a tapping hole 31c formed at the upper end of the wall 31a and a push rod 25. The weight 24 is attached to the lower edge of the cloth 21.

In the bathroom ventilator according to the eleventh embodiment, when the fan of the bathroom is not driven, the pressure difference between the bathroom and the undressing room is zero. It is along the wall 31a on the room side, and closes the ventilation port 31x, and thus closes the ventilation path 34. Therefore, the splash of water or hot water in the bathroom is prevented from entering the dressing room by the cloth 21.

When the bathroom fan is driven to dry the bathroom, the pressure of the bathroom becomes negative, and the pressure difference between the bathroom and the undressing room causes the cloth 21 to flutter as indicated by the imaginary line. Of the air vent 31x is opened. As a result, the air in the undressing room passes through the ventilation path 34 from the ventilation port 31x, and the ventilation port 32x,
Flows from 32y to the bathroom. Therefore, moisture in the bathroom can be smoothly discharged.

In the above embodiment, even when a fan is provided on the undressing room side, even if the fan is driven, the cloth 21 sticks to the wall 31a and functions as a check valve, so that ventilation can be prevented and moisture in the bathroom can be removed to the undressing room. It is possible to prevent invocation.

Next, a twelfth embodiment applied to a bathroom ventilator will be described.
An embodiment will be described with reference to FIG. The apparatus main body 30 'is formed in a rag-like shape in order to increase the effective ventilation area, and has five vertically spaced members. The uppermost section is a fitting member 35 corresponding to the fitting section 31b in FIG. 14, and the lowermost section is a fitting member 36 corresponding to the fitting section 31c in FIG. The lower fitting member 36 has an upright wall 36a, and also has a role as a blade member.

The three (plural) members arranged between the fitting members 35 and 36 become the blade members 37. Each blade member 37 includes an upright wall 37a arranged in the center, a pair of inclined walls 37b extending diagonally downward from the lower end of the upright wall 37a toward the bathroom and the undressing room, and these inclined walls 37b.
And a hanging wall 37c that hangs vertically from the lower end of the housing.

The upright wall 37a of the upper blade member 37 is close to the fitting member 35, and substantially no ventilation passage is formed between them. Vertically adjacent blade members 37
A ventilation path 38 is formed between them. An air passage 38 is also formed between the lower blade member 37 and the fitting member 36. The valve means 20 is disposed in each ventilation path 38. This valve means 20 has the same configuration as that of FIG. 14, but the weight is omitted. More specifically, a tapping hole 37d is formed at the intersection of the upright wall 37a and the pair of inclined walls 37b in the blade member 37, and the cloth 21 is inserted into the tapping hole 37d via the push rod 25.
The upper edge is attached.

In the bathroom ventilating apparatus according to the twelfth embodiment, when the fan in the bathroom is not driven, the pressure difference between the bathroom and the undressing room is zero, so that the cloth 21 hangs vertically and stands upright. In contact with the bathroom side surfaces 36a and 37a, the ventilation passage 38 is closed. Therefore, the splash of water or hot water in the bathroom is prevented from entering the dressing room by the cloth 21.

When the bathroom fan is driven to dry the bathroom, the pressure of the bathroom becomes negative, and the cloth 21 flutters as indicated by the imaginary line due to the pressure difference between the bathroom and the undressing room. 37, the ventilation path 38 is opened. As a result, the air in the dressing room flows through the ventilation passage 38 to the bathroom.
Therefore, moisture in the bathroom can be smoothly discharged.

In the above embodiment, a net 39 (a regulating member) may be attached to the upright walls 36a, 37a as shown by imaginary lines in FIG. In this way, even if a fan is provided on the undressing room side, even if the fan is driven, the cloth 21
Since it acts as a check valve, it can block ventilation and prevent moisture from entering the bathroom into the dressing room.

The eleventh and twelfth embodiments can be applied to a door that opens and closes a toilet (special room) and a corridor (another room). In this case, when the cloth 21 hangs down and is closed, it is possible to prevent the odor of the toilet from escaping to the corridor. When the toilet fan is driven, the cloth 21 is opened and the odor can be discharged smoothly.

Next, FIG. 16 shows a thirteenth embodiment in which the present invention is applied to a rattle-like ventilation device mounted on a building wall that separates an outdoor space from an attic space (indoor) (hereinafter, referred to as a wall-like rattle-like ventilation device). , 17 will be described. The apparatus main body 40 covers the wall B so as to cover the hole B formed in the wall K.
Are fixed to each other, and a large number of horizontal moldings and left and right vertical moldings (not shown) arranged vertically at intervals.
have. An upper frame 41 made of the uppermost horizontal member,
A plurality of blade members 43 made of a mold having the same cross-sectional shape are arranged between the lower frame 42 made of the lowermost horizontal mold.

The wing member 43 has an upright wall 43a located on the side of the attic space, and inclined walls 43b and 43c extending obliquely downward from the upper and lower ends of the upright wall 43a toward the outdoors.
And a hanging wall 43d extending downward from an outdoor edge of the lower inclined wall 43c. In addition, the upper inclined wall 43b
Is narrower than the lower inclined wall 43c. As a result, a ventilation passage 44 having a substantially S-shaped vertical section is formed between the vertically adjacent blade members 43.

The upper frame 41 is provided with an inclined wall 43 of the blade member 43.
c, inclined wall 41c and hanging wall 41 having the same shape as hanging wall 43d
d, and the upper frame 41 and the uppermost blade member 43
Between the blade members 43 vertically adjacent to each other.
An air passage 44 having the same shape as that of the air passage 4 is formed. The lower frame 42 includes an upright wall 43a, an inclined wall 43b,
Standing wall 42a, inclined walls 42b, 42c having the same shape as 43c
A ventilation path 44 having the same shape as the ventilation path 44 between the vertically adjacent blade members 43 is formed between the lowermost blade member 43 and the lowermost blade member 43. Therefore, the upper frame 41 and the lower frame 4
2 also plays a role as a blade member.

The valve means 20 is disposed in each ventilation path 44. The upper edge of the cloth 21 of the valve means 20 is formed by an inclined wall 43.
b, is attached to the upper surface of the inclined wall 42b by means such as bonding or the like, and hangs from the outside edge of the inclined walls 43b, 42b. A rod-shaped weight 24 is attached to the lower edge of the cloth 21 in the same manner as in the above-described embodiment. A block 45 (a regulating member, shown only in FIG. 17) is attached to a corner where the inclined walls 43c, 41c intersect the hanging walls 43d, 41d. A plurality of the blocks 45 are arranged at intervals in the longitudinal direction of the ventilation path 44 (a direction perpendicular to the paper surface).

In the rattle-shaped ventilation device for a wall according to the thirteenth embodiment, the cloth 21 is in a hanging state in a windless state, the ventilation passage 44 is open, and the attic space is connected to the outside and is well ventilated. . When a strong wind blows, this wind enters the ventilation path 44 obliquely upward from the outside along the upper surfaces of the inclined walls 43c and 42c and hits the upright walls 43a and 42a, where it is reversed and goes outdoors along the inclined wall 43b. Go forward. Then it is reversed by the hanging walls 43d and 41d,
An attempt is made to enter the attic space along the lower surfaces of the inclined walls 43c and 41c. At this time, the cloth 21 is fluttered toward the outside, and the lower edge of the cloth 21 is hung on the hanging walls 43d, 41d.
And closes the ventilation path 44. Accordingly, it is possible to prevent a strong wind from blowing into the attic space. In addition, most of the raindrops that have entered the ventilation path 44 due to the strong wind, when the strong wind hits the upright wall 43a and reverses, the inclined wall 43c,
42c, and the remaining raindrops are blocked by the cloth 21 and fall from here onto the inclined walls 43c, 42c. The dropped raindrops are discharged outside along the inclined walls 43c and 42c.

Next, a fourteenth embodiment applied to a wall-shaped rattle-shaped ventilation device will be described with reference to FIG. In this second embodiment, instead of the inclined wall 43b of the blade member 43 in the embodiment of FIGS.
Instead, the cost of the mold material is reduced. That is,
A tapping hole 43 e is formed at the upper end of the upright wall 43 a of the blade member 43, and the upper edge of the cloth 21 is attached to the tapping hole 43 e via a push rod 25. A shaft extending in the longitudinal direction of the ventilation path 44 is provided in the ventilation path 44 with a tapping hole 43e.
The shaft 4
6 is hooked on the middle part of the cloth 21. This cloth 21
The portion from the tapping hole 43e to the shaft 46 plays the role of the inclined wall 43b in the embodiment of FIGS. Similarly, the inclined wall 42b of the lower mold member 42 in FIG.

Next, a fifteenth embodiment applied to a rattle-shaped ventilation device for a wall will be described with reference to FIG. In the fifteenth embodiment, the width of the upper inclined wall 43b of the blade member 43 is smaller than that of the embodiment shown in FIGS. 16 and 17, and the upper edge of the cloth 21 is located substantially at the center in the width direction of the lower inclined wall 43c. Part is attached. In detail, the inclined wall 43
c, a tapping hole 43e is formed on the lower surface, and the upper edge of the cloth 21 is attached to the tapping hole 43e via the push rod 25, and the cloth 21 has a weight 24 at the lower edge.
Hanging with. When the wind is strong, the wind flutters indoors, and comes into contact with the upright wall 43a and the inclined wall 43b to close the ventilation path 44. The upper frame 4
1, the structure of the lower frame 42 (see FIG. 16)
Of course, it has been changed corresponding to No. 3.

Next, a sixteenth embodiment applied to a rattle-shaped ventilation device for a wall will be described with reference to FIG. The sixteenth embodiment has a structure similar to that of the second embodiment shown in FIG. 18, except that the shaft 46 is omitted and a plate 47 (a regulating member) is mounted. In this embodiment, the cloth 21 hangs down along the upright wall 43a, and is placed on the upper surface of the inclined wall 43c halfway. No weight is attached to the cloth 21. When the strong wind blows, the cloth 21 blows up, and the inclined wall 43c of the upper blade member 43 is suspended from the hanging wall 43c.
By contacting over d, the ventilation path 44 is closed. The plurality of plates 47 are arranged at intervals in the longitudinal direction of the ventilation path 44, and are fixed to the inclined wall 43 c of the upper blade member 43 and the upright wall 43 a of the lower blade member 43. It is bridged by the ventilation path 44. The plate 47 can prevent the cloth 21 from turning over into the attic space.

Next, a seventeenth embodiment applied to a hood-shaped ventilation device mounted on a building wall separating an indoor room from an outdoor site will be described with reference to FIG. In this embodiment, the device main body 50 has a cylindrical fitting portion 51 fitted to the outdoor end of the hole B of the building wall K, and a substantially rectangular parallelepiped shape provided at the outdoor end of the fitting portion 51. It has a hood portion 52 and mounting pieces 53 provided on the left and right edges and the upper edge of the hood portion 52 and fixed to the wall K. The internal space of the hood part 52 and the fitting part 51 is provided as a ventilation path 54. The lower end opening 52a of the hood portion 52 allows the ventilation passage 54 to communicate with the outside. An arc-shaped projection 55 (a regulating member) is provided in a substantially lower half of the outdoor end of the fitting portion 51. A drain hole 55 a is formed in the projection 55.

The valve means 20 is arranged in the internal space of the hood 52. More specifically, the hood portion 52 has a support shaft 56 parallel to and horizontal to the wall K.
(Support member). This support shaft 5
6, a bag portion 21 at the upper edge portion, as in the embodiment of FIG.
The cloth 21 is attached so that b is inserted. A weight 24 is attached to the lower edge of the cloth 21.

In the embodiment having the above-described structure, when a strong outdoor wind blows from the lower end opening 52a, the lower edge of the cloth 21 comes into contact with the inner surface of the hood portion 52 on the side of the wall K, and the flow cross-sectional area of the ventilation passage 54 is minimized. And substantially plug this. Since the length of the weight 24 is larger than the diameter of the fitting portion 51, the cloth 21 can be prevented from entering the fitting portion 51.
By providing 5, the entry of the cloth 21 can be reliably prevented. Therefore, when the strong wind stops, the cloth 21 can return to the original hanging state.

Conversely, when the indoor air pressure is higher than the outdoor air pressure, or when a ventilation fan is provided at the indoor end of the hole K and the ventilation fan is activated, the cloth flutters away from the wall K, Since the flow cross-sectional area of the ventilation path 54 is increased,
The indoor air can be discharged smoothly.

Next, an eighteenth embodiment applied to a hood-shaped ventilation device for a wall will be described with reference to FIG. In this embodiment, the valve means 20 comprises two cloths 21, 21 '.
Is used. The cloth 21 is attached to the support shaft 56 and hangs down, similarly to the first embodiment of FIG. 21. On the other hand, the inclined portion 52b separated from the wall K of the hood portion 52
A tapping hole 52c is formed at the upper part of the cloth 21 ', and the upper edge of another cloth 21' is attached to the tapping hole 52c via a push rod 25. A shaft 57 (a regulating member) is disposed between the tapping hole 52c and the support shaft 56 and between the support shaft 56 and the protrusion 55, respectively.

In the embodiment having the above structure, the two relatively short cloths 21 and 21 'are arranged in the air passage 54, so that the flow resistance for ventilation in a light wind state is made smaller than that in the embodiment of FIG. Can be. When a strong wind blows outdoors, the lower edge of the cloth 21 contacts the inner surface of the hood 52 on the wall K side, and the lower edge of the cloth 21 ′ overlaps the upper edge of the cloth 21.
The ventilation path 54 is closed. The two shafts 57 are attached to the cloth 21,
Prevents 21 'turnover.

FIG. 23 shows a nineteenth embodiment applied to a wall ventilation system.
1 shows an embodiment. The ventilator is installed on the indoor side of the wall K, and the main body 60 of the ventilator has a rectangular vertical wall 61 fixed to the wall K so as to close the indoor end of the hole B of the wall K. And horizontal walls 62 and 63 extending horizontally from the upper and lower portions of the vertical wall 61 toward the depth of the hole B. An air passage 64 is formed between the horizontal walls 62 and 63. The lower horizontal wall 63 is shorter than the upper horizontal wall 62, and an upright wall 65 is formed at a leading edge thereof. A vent 61 a is formed in the vertical wall 61, and the vent 61 a is opened and closed by an operation plate 66. That is, the operation plate 66 is slidably supported by the vertical wall 61, and a control port 66 a having the same pitch as the ventilation port 61 a of the vertical wall 61 is formed. The sliding operation of the knob 67 opens and closes the ventilation port 61 a. Has become.

The cloth 2 of the valve means 20 provided in the ventilation passage 64
1 is attached via a push rod 25 to a tapping hole 62a formed at the leading edge of the upper horizontal wall 62, and hangs away from the standing wall 65 to the outdoor side. When a strong wind blows from the outside, the lower edge of the cloth 21 contacts the upright wall 65 and closes the ventilation path 64.

Next, a twentieth embodiment in which the present invention is applied to a ventilation fan (ventilation apparatus) will be described with reference to FIGS. This ventilation fan has an apparatus main body 70 mounted on a wall. The device body 70 includes a fan 79
And a base 71 rotatably accommodated in the base 71.
1 and a fitting portion 72 fitted to a hole in the wall. The base 71 is provided with an operation string 73, and when the operation string 73 is pulled, a switch (not shown) for the fan 79 can be turned on and off.

An internal space between the base 71 and the fitting portion 72 forms a ventilation path 74, and the valve means 20 is disposed in the fitting portion 72. The valve means 20 is formed by arranging a plurality of, for example, four cloths 21 so as to partially overlap vertically. More specifically, in the fitting portion 72, four horizontal support shafts 76 (support members) are arranged at intervals vertically. The cloth 21 is attached to the support shaft 76.
The bag portion 21b at the upper edge portion is inserted and supported, and the cloth 21 hangs down. A net 77 (a regulating member) is arranged near the indoor side of the support shaft 76 and the cloth 21.

In the above embodiment, the cloth 21 hangs down in a windless state and partially overlaps each other to block the ventilation path 74, thereby preventing insects and the like from entering. When a strong wind blows, the cloth 21 tries to flow indoors, but is blocked by the net 77, and sticks to the net 77 to block the ventilation path 74. In this way, the cloth 21 and the net 77 function as a check valve, and it is possible to prevent a strong wind from blowing into the room.

When the fan 79 is rotated by the operation of the operation cord 73, the cloth 21 is blown by the fan 79 so that the cloth 21 is turned on as shown in FIG.
Fluttering outdoors, as indicated by the imaginary line. As a result, a smooth exhaust operation can be ensured without obstructing the blowing action of the fan 79. In a normal ventilation fan, the operation cord 73
To open the blade of the ventilation path 74 when turning on the fan 79 and closing the blade of the ventilation path 74 when turning off the fan 79 by pulling the operation cord 73 again.
Since the opening and closing of the blades is performed by operating the operation string 73, a strong operation force is required. However, in this embodiment, the operation string 73 only needs to turn on and off the fan 79, so that the operation is easy. is there. Also, there is no noise associated with the opening and closing of the blades.

Next, a twenty-first embodiment applied to a ventilation fan will be described with reference to FIG. In this ventilation fan, the device main body 70 includes a main portion including a base portion 71 and a fitting portion 72, and a square frame 80 detachable from the fitting portion 72. This frame 80
It is made of resin and has a groove 80a that fits into the leading edge of the fitting portion 72. The frame 80 forms a part of the ventilation path 74. The shaft 80, the cloth 21, and the net 77 are provided on the frame 80. In this embodiment, when the cloth 21 and the net 77 are soiled, the frame 80 can be removed and replaced with a new one.

The present invention is not limited to the above embodiment, and various modes are possible. For example, the sheet may be not only a synthetic fiber cloth but also a synthetic resin film, a nonwoven fabric, or the like. The support member to which the edge of the sheet is attached may be a wire instead of the support shaft. The mounting member to which the edge of the sheet is mounted may be moved along the mounting groove. The movement of the attachment member allows the seat to be manually opened and closed.

In all of the embodiments, the flow control characteristics can be adjusted by adjusting the weight attached to the sheet. Further, in the embodiment in which the sheet is weighted, the weight may be omitted as necessary, or in the embodiment in which the weight is not added, the weight may be added as needed. Further, the weight may be a wire or the like instead of the elastic material.

The sheet may be folded in two, and the folded portion may be attached to the apparatus body. In this case, it is interpreted that each edge of the two sheets is attached to the apparatus main body.

The structure for attaching the edge of the sheet described in the above embodiment can be applied to other embodiments. Further, the regulating member described in the above embodiment can be applied to other embodiments. In addition, the first to tenth
In the window ventilation device of the embodiment, the operation plate may be omitted. Further, the present invention is applicable to all types of ventilation devices used in buildings, such as ventilation devices mounted on buildings and roofs.

[0081]

As described above, according to the first aspect of the present invention, since the automatic circulation control of the ventilator is performed by using the flexible sheet which is shifted by the pressure difference, it can be manufactured at low cost. , Noise can be eliminated. According to the second aspect of the present invention, since the sheet is made of synthetic fiber cloth, it is inexpensive and has excellent weather resistance and flexibility.

According to the third aspect of the present invention, since one edge of the sheet is attached and the other edge is made free, it is possible to respond to a pressure difference with a simple structure. Fourth Embodiment of the Present Invention
According to the aspect, when the pressure difference returns to zero, the sheet can return to the hanging state due to its own weight. According to the fifth aspect of the present invention, it is possible to reliably return to the hanging state by applying the weight. In addition, the flow control characteristics can be adjusted by the weight. According to the sixth aspect of the present invention, the weight can be easily attached to the sheet by putting the elongated weight in the bag of the sheet.
According to the seventh aspect of the present invention, the flow can be stably controlled by inflating the sheet with the wind blown from the blowing port.

According to the eighth aspect of the present invention, the edge of the sheet can be easily attached to the attachment groove of the apparatus main body by using the push rod. According to the ninth aspect of the present invention, the edge of the sheet can be easily attached via the attachment member housed in the attachment groove. According to the tenth aspect of the present invention, since it is attached to the edge of the sheet via the elongated support member, the attachment position can be selected in a wider range. According to the eleventh aspect of the present invention, since the support member is inserted through the bag portion of the sheet, the sheet can be easily attached.

According to the twelfth aspect of the present invention, since the deviation of the sheet is regulated by the regulating member, the sheet can be surely returned to the position where the pressure difference is zero, or can serve as a check valve. Various functions can be exhibited. First of the present invention
According to the third aspect, by arranging the regulating members at intervals in the elongated ventilation path, the sheet can be regulated with a simple structure. According to the fourteenth aspect of the present invention, by using a net as the regulating member, it is possible to reliably regulate the sheet. According to the fifteenth aspect of the present invention, by using the shaft as the regulating member, it is possible to regulate the sheet with a simple structure.

According to the sixteenth aspect of the present invention, in the window ventilator, when an outdoor strong wind acts, the sheet closes the ventilation path to prevent the strong wind from blowing into the interior, and the rain or rain caused by the strong wind can be prevented. It is possible to prevent dust and the like from entering the room. According to the seventeenth aspect of the present invention, it is possible to close the ventilation path by causing the sheet to flow indoors, and to reliably open the ventilation path by returning to the hanging state when the pressure difference is zero. According to the eighteenth aspect of the present invention, it is possible to reliably flow the sheet by the wind from the blowing port and close the ventilation path. According to the nineteenth aspect of the present invention, it is possible to close the ventilation path by causing the sheet to flow outside.

According to the twentieth aspect of the present invention, the air volume can be adjusted with a slight breeze using a plurality of sheets, and the air passage can be reliably closed by overlapping each other. According to the twenty-first aspect of the present invention, the sheet is swollen by the wind from the blowing port, so that the ventilation path can be reliably closed. According to the twenty-second aspect of the present invention, the ventilation passage can be manually opened and closed by the operation plate, and separately from the seat, the ventilation passage can be automatically opened and closed by the strength of the outdoor wind.

According to the twenty-third aspect of the present invention, it is possible to prevent moisture or odor from a special room such as a bathroom or a toilet from leaking into another room by closing a ventilation passage with a pressure difference of zero. When the negative pressure is applied to the special room by driving the fan of the special room, the sheet is opened, and the moisture and odor can be smoothly discharged from the special room. According to the twenty-fourth aspect of the present invention, when the pressure in the other chamber becomes negative, the seat adheres to the wall on the other chamber side, so that the sheet functions as a check valve,
The discharge of moisture and odor from the special room to other rooms can be reliably prevented. According to the twenty-fifth aspect of the present invention, since the apparatus main body is formed in a rattle shape, the effective distribution area can be increased. According to the twenty-sixth aspect of the present invention, since the regulating member and the seat function as a check valve, it is possible to reliably prevent the discharge of moisture and odor from the special room to another room.

According to the twenty-seventh aspect of the present invention, in a galvanized ventilation device for a wall, when an outdoor strong wind acts,
The sheet closes the ventilation path to prevent a strong wind from blowing into the room, thereby preventing rain, dust and the like due to the strong wind from entering the room. According to the twenty-eighth aspect of the present invention, the upright wall of the blade member, the two inclined walls, and the hanging wall can reliably prevent the entry of rain and the like in combination with the operation of the sheet. According to the twenty-ninth aspect of the present invention, since a part of the sheet replaces the inclined wall of the blade member, it can be manufactured at low cost. According to the thirtieth aspect of the present invention, it is possible to close the ventilation path by allowing the sheet to fly outdoors. According to the thirty-first aspect of the present invention, since the sheet is arranged along the inclined wall from the upright wall of the blade member, the effective ventilation area can be increased.

According to the thirty-second aspect of the present invention, in the hood-shaped ventilation device for a wall, the seat is arranged in a hanging state on the hood portion, so that resistance to air discharge from indoors can be reduced. According to the thirty-third aspect of the present invention, in the indoor ventilation system for a wall, a sheet is provided together with an operation plate to be opened and closed, and when the strong wind from the outside acts, the sheet blocks the ventilation path. be able to.

According to the thirty-fourth aspect of the present invention, in a ventilating apparatus with a built-in fan, the sheet closes the ventilation path when the fan is not driven, and the sheet is blown by the wind when the fan is driven. Since the road is opened, the exhaust can be performed and the exhaust can be stopped with a simple operation. No. 35 of the present invention
According to the aspect, since the plurality of sheets are supported by the elongated support member, the ventilation passage can be automatically opened and closed with a simple structure. According to the thirty-sixth aspect of the present invention, the regulating member and the seat serve as a check valve, and can prevent the blowing of strong wind from outside. According to the thirty-seventh aspect of the present invention, when the sheet becomes dirty, only the frame on which the sheet is mounted can be replaced.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a first embodiment in which the present invention is applied to a window ventilation device, wherein (A) shows a closed state by an operation plate, and (B) shows ventilation when the operation plate is open. (C) shows a state in which ventilation is cut off by a cloth with the operation plate closed.

FIG. 2 is a rear view showing a part of the ventilation device.

FIG. 3 is an enlarged sectional view showing a lower edge portion of the cloth.

FIG. 4 is a longitudinal sectional view showing a second embodiment in which the present invention is applied to a window ventilation device.

5A and 5B are longitudinal sectional views showing a third embodiment in which the present invention is applied to a window ventilation device, wherein FIG. 5A shows a closed state by an operation plate, and FIG. 5B shows an opened state of the operation plate.

FIG. 6 is a rear view in the third embodiment.

FIG. 7A is a fourth view in which the present invention is applied to a window ventilation device.
It is a longitudinal section showing an embodiment, and (B) is an important section sectional view showing a modification of a cloth attachment structure.

FIG. 8 is a longitudinal sectional view showing a fifth embodiment in which the present invention is applied to a window ventilation device.

FIG. 9 is a longitudinal sectional view showing a sixth embodiment in which the present invention is applied to a window ventilation device.

FIG. 10 is a longitudinal sectional view showing a seventh embodiment in which the present invention is applied to a window ventilation device.

FIG. 11 is a longitudinal sectional view showing an eighth embodiment in which the present invention is applied to a window ventilation device.

FIG. 12 is a longitudinal sectional view showing a ninth embodiment in which the present invention is applied to a window ventilation device.

FIG. 13 is a longitudinal sectional view showing a tenth embodiment in which the present invention is applied to a window ventilation device.

FIG. 14 is a longitudinal sectional view showing an eleventh embodiment in which the present invention is applied to a bathroom ventilator.

FIG. 15 is a longitudinal sectional view showing a twelfth embodiment in which the present invention is applied to a bathroom ventilator.

FIG. 16 is a longitudinal sectional view showing the entirety of a thirteenth embodiment in which the present invention is applied to a rattle-shaped ventilation device for a wall.

FIG. 17 is an enlarged longitudinal sectional view of a main part of the same embodiment.

FIG. 18 is an enlarged longitudinal sectional view of a main part of a fourteenth embodiment in which the present invention is applied to a rattle-shaped ventilation device for a wall.

FIG. 19 is an enlarged vertical sectional view of a main part of a fifteenth embodiment in which the present invention is applied to a rattle-shaped ventilation device for a wall.

FIG. 20 is an enlarged longitudinal sectional view of a main part of a sixteenth embodiment in which the present invention is applied to a rattle-shaped ventilation device for a wall.

FIG. 21 is a longitudinal sectional view of a seventeenth embodiment in which the present invention is applied to a hood-shaped ventilation device for a wall.

FIG. 22 is a longitudinal sectional view of an eighteenth embodiment in which the present invention is applied to a hood-shaped ventilation device for a wall.

FIG. 23 is a vertical sectional view of a nineteenth embodiment in which the present invention is applied to a wall-mounted indoor ventilation device.

24A and 24B show a twentieth embodiment in which the present invention is applied to a ventilation fan, wherein FIG. 24A is a front view, and FIG. 24B is a side view showing a partial cross section.

FIG. 25 is an enlarged longitudinal sectional view of a main part of the twentieth embodiment.

FIG. 26 is a side view showing a twenty-first embodiment in which the present invention is applied to a ventilation fan, with a partial cross section and an exploded view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Device main body 11a Indoor wall 11c Projection 11g Tapping hole (mounting groove) 11x Indoor side vent 12a Outdoor side wall 12b, 12b 'Tapping hole (mounting groove) 12x Inlet 12y, 15 Outdoor side vent 13,18 Actuating plate 14 Ventilation path 16 Cam block (regulating member) 20 Valve means 21, 21A, 21B, 21 'Cloth (seat) 21a, 21b Bag portion 24 Weight 25 Push rod 26 Mounting member 27 Net (regulating member) 28 Support shaft ( Elongated support member) 30, 30 'Main body of device 31a Wall on undressing room (other room) side 31c Tapping hole (mounting groove) 31x Vents on undressing room (other room) side 32a, 32b On bathroom (special room) side Wall 32x, 32y Vent on the bathroom (special room) side 34 Ventilation path 37 Blade member 37a Standing wall 37d Tapping hole Mounting groove) 38 Ventilation path 39 Mesh (regulating member) 40 Device main body 43 Blade member 43a Tapping hole (mounting groove) 44 Ventilation path 45, 47 Regulatory member 50, 60 Device main body 52c, 62a Tapping hole (mounting groove) 54, 64 Ventilation path 55 Projection (restriction member) 56 Support shaft (support member) 57 Shaft (restriction member) 70 Main body 74 Ventilation path 76 Support shaft (support member) 77 Mesh (restriction member) 79 Fan 80 Frame

Claims (37)

[Claims] 1. A ventilation device mounted on a building, comprising a hollow device main body having a ventilation path, and a flexible sheet disposed in the ventilation path, wherein the sheet is provided in accordance with a pressure difference between both sides thereof. A ventilating device for a building, characterized by controlling the flow of air in a ventilation path by shifting. 2. The building ventilation system according to claim 1, wherein said sheet is made of synthetic fiber cloth. 3. The building according to claim 1, wherein one edge of the seat is attached to the apparatus main body, and another edge opposite to the edge is free. Ventilation equipment. 4. The sheet is characterized in that an upper edge is attached to the apparatus main body, a lower edge is in a free state, and the sheet is in a hanging state when a pressure difference between both sides is zero. The building ventilation device according to claim 3. 5. The ventilation device for a building according to claim 4, wherein a weight is attached to a lower edge portion of the seat. 6. The ventilation device for a building according to claim 5, wherein a bag portion is formed along a lower edge portion of the sheet, and an elongated weight is accommodated in the bag portion. 7. The sheet has upper and lower edges attached to the main body of the apparatus, and has a width wider than the distance between the mounting portions, and hangs down. The ventilation device for a building according to claim 1 or 2, wherein an air inlet for introducing and inflating is formed. 8. The apparatus main body has a linearly extending mounting groove, and a push rod extending along the mounting groove is fitted into the mounting groove. The ventilation device for a building according to any one of claims 1 to 7, wherein an edge of said seat is sandwiched and supported. 9. The apparatus main body has a linearly extending mounting groove, in which a mounting member is accommodated, and a portion of the mounting member protruding from the mounting groove is provided with an edge of the sheet. 2. The method according to claim 1, wherein
The ventilation device according to any one of claims 1 to 7. 10. The ventilation for a building according to claim 1, wherein an elongated support member is disposed in the ventilation path, and an edge of the seat is attached to the support member. apparatus. 11. The ventilation according to claim 10, wherein a bag portion extending along the edge portion is formed at an edge of the sheet portion, and the support member is inserted through the bag portion. apparatus. 12. A regulating member is arranged in the ventilation passage so as to allow air flow, and the regulating member regulates the deviation of the sheet.
12. The ventilation device for a building according to any one of 11 above. 13. The ventilation device for a building according to claim 12, wherein the ventilation passage is formed to be elongated, and a plurality of the regulating members are arranged at intervals in a longitudinal direction of the ventilation passage. 14. The ventilation device for a building according to claim 12, wherein the regulating member is made of a net. 15. The ventilation device for a building according to claim 12, wherein the regulating member comprises a shaft spanned through a ventilation path. 16. The device main body is formed in an elongated shape, is mounted horizontally on a door that opens and closes a window, and has an indoor side wall and an outdoor side wall facing each other across a ventilation path, and further includes an apparatus. The main body has a ventilation port for communicating the ventilation path indoors and a ventilation port for communicating the ventilation path outdoors, and the sheet is disposed between the indoor-side ventilation port and the outdoor-side ventilation port. The building ventilation device according to any one of claims 1 to 15, wherein: The sheet has an upper edge attached to the apparatus main body, a lower edge hanging down in a free state to open a ventilation path, and closing the ventilation path by fluttering indoors with outdoor wind. The ventilation device for a building according to claim 16, wherein: 18. The apparatus according to claim 17, wherein a blow-out port is formed in the outdoor-side wall of the apparatus main body so as to face the hanging sheet above the outdoor-side vent. The ventilator for buildings as described. 19. The indoor-side vent is located above the outdoor-side vent, and a projection is formed from the indoor-side wall to the outdoor-side wall. The part is attached to this projection and hangs down from the tip edge of the projection, and when the outdoor wind enters from the outdoor side vent and hits the indoor side wall and turns back, the sheet drifts to this wind and shifts to the outdoor side, The building ventilation system according to claim 16, wherein the ventilation path is closed. 20. The indoor-side ventilation port is located above the outdoor-side ventilation port, and a plurality of elongated support members extending in the longitudinal direction of the apparatus main body are orthogonal to the longitudinal direction in the ventilation path. Are arranged side by side in each direction, the above-mentioned sheet is attached to an upper edge portion of each supporting member and hangs down, and these sheets are blown up by wind from an outdoor side ventilation opening and folded. The ventilation device for a building according to claim 16, wherein the ventilation passage is closed. 21. The indoor-side ventilation port is located above the outdoor-side ventilation port, and the outdoor-side wall has a blowing port formed above the outdoor-side ventilation port,
The above-mentioned sheet has upper and lower edges attached to the upper and lower sides of the air inlet, and the middle part is in a hanging state, and the air from the air inlet swells toward the indoor side wall to block the ventilation path. The building ventilation system according to claim 16, wherein: 22. The indoor-side ventilation port is located above the outdoor-side ventilation port, and the apparatus body has an operation plate for opening and closing the indoor-side ventilation port. 17. The ventilation device for a building according to claim 16, wherein the seat is disposed between the ventilation hole and an outside vent. 23. The apparatus main body is mounted on a door disposed between a special room and another room, and the sheet hangs down with its upper edge attached to the apparatus main body, and the air passage is formed in the hanging state. The ventilator for a building according to any one of claims 1 to 15, wherein when the negative pressure is applied to the special room, the air is shifted to the special room side to open the ventilation path. 24. The apparatus main body has a special room side wall having a vent, and another room side wall having a vent, and the sheet hangs down along the other room side wall. 24. The ventilation device for a building according to claim 23, wherein the ventilation port on the other room side faces the seat. 25. The apparatus main body is configured by vertically arranging horizontal blade members, a ventilation path is formed between adjacent blade members, and the upper and lower blade members are adjacent to each other. 24. The ventilation device for a building according to claim 23, wherein an upper edge portion of the seat is attached and hangs down to contact an upright wall of a lower blade member to block a ventilation path. 26. The ventilation device for a building according to claim 25, wherein the upright wall is provided with a regulating member for preventing the seat from flowing toward another room. 27. The device main body is mounted on the building wall so as to cover a hole in the building wall that separates indoor and outdoor, and is configured by arranging a plurality of horizontal blade members vertically. The ventilation path is formed between adjacent blade members, and each blade member includes an upright wall on the indoor side, an inclined wall extending obliquely downward from the lower edge of the upright wall to the outside, and a lower wall below the inclined wall. A hanging wall hanging down from an edge portion, wherein the sheet is disposed in each ventilation path and formed to be elongated in the longitudinal direction of the blade member, and one edge portion is attached to the blade member. The building ventilation device according to any one of claims 1 to 15, wherein 28. Each of the blades has another narrow inclined wall extending obliquely downward from the upper edge of the upright wall toward the outside, and the upper edge of the sheet is attached to the other inclined wall. 28. The building ventilator of claim 27, wherein the seat is attached and the seat hangs from a leading edge of the other sloped wall. 29. An elongate support member extending in the longitudinal direction of the blade member is disposed in the ventilation path at a position lower than the upper edge of the upright wall and away from the upright wall,
28. The sheet according to claim 27, wherein the upper edge of the sheet is attached to an upper edge of the upright wall, and an intermediate portion thereof is hung on the support member and hangs from the support member. Building ventilation system. 30. Each of the blade members has another inclined wall having a narrow width extending obliquely downward from the upper edge of the upright wall toward the outside, and the upper edge of the seat has the inclined wall. 28. The ventilation device for a building according to claim 27, wherein the ventilation device is attached to a lower surface of a middle portion in a width direction of the vehicle and hangs. 31. The sheet has an upper edge attached to an upper edge of an upright wall, and hangs down along the upright wall, and is placed on an upper surface of an inclined wall, and is blown up by wind from the outside. 28. The ventilation device for a building according to claim 27, wherein the ventilation passage is closed by contacting the upper blade member. 32. The apparatus main body has a fitting portion fitted from the outdoor side of a hole in a building wall that separates indoors and outdoors, and a hood portion projecting outdoors and having a lower end opened. The interior space of the section becomes the ventilation path, the upper edge of the seat is attached in the hood section, and when the air pressure difference between the indoor and the outdoor is zero, the sheet hangs down to open the ventilation path, and the outdoor air pressure is The ventilation device for a building according to any one of claims 1 to 15, wherein the ventilation device closes the ventilation passage when it becomes higher. 33. The apparatus main body has a vertical wall that covers an indoor opening of a hole in a building wall that separates indoors and outdoors, and has a vent, and a horizontal wall that extends from an upper portion of the vertical wall toward the outdoor direction. The air vent of the vertical wall is opened and closed by an operation plate, and the sheet is disposed on the outdoor side from the operation plate, and the upper edge of the sheet is attached to the horizontal wall. The air passage that hangs down when the pressure difference is zero and opens the ventilation path, and when the outdoor air pressure is higher than the indoor air pressure, the ventilation path closes indoors and the ventilation path is closed, according to any one of claims 1 to 15, The ventilator for buildings as described. 34. A fan is disposed in a ventilation path of the apparatus main body, and the sheet is disposed downstream of the fan. The sheet is not driven by the fan and has a pressure difference of zero on both sides thereof. The ventilation device for a building according to any one of claims 1 to 15, wherein the ventilation passage is sometimes closed, and when the fan is driven, the ventilation passage is opened by being deviated by wind from the fan. 35. A plurality of elongated support members extending horizontally are laid vertically over the ventilation path, and an upper edge portion of a sheet is attached to these support members and hangs down. Item 35. A building ventilation device according to item 34. 36. A restricting member for allowing air to flow is disposed adjacent to the fan side of the seat in the ventilation path,
The ventilation device for a building according to claim 34 or 35, wherein the restricting member prevents the seat from shifting from the hanging state toward the fan. 37. The ventilation main body has a main part containing the fan, and a frame detachably attached to a downstream end of the main part, and the seat is attached to the frame. 37. The method according to claim 34, wherein
A ventilation device for a building according to any one of the above.