WO2017103990A1

WO2017103990A1 - Ventilation device

Info

Publication number: WO2017103990A1
Application number: PCT/JP2015/085043
Authority: WO
Inventors: 欣也小野寺; 佐藤　功
Original assignee: 株式会社佐原
Priority date: 2015-12-15
Filing date: 2015-12-15
Publication date: 2017-06-22
Also published as: KR101950633B1; KR20170116087A; JP6342072B2; AU2015417648A1; CN107532449A; JPWO2017103990A1; CN107532449B; AU2015417648B2

Abstract

A device body 10 of a ventilation device comprises an inside first main wall 12a that has a first ventilation opening 12x, and an outside second main wall 15a that has a second ventilation opening 15x. The ventilation device further comprises a first and second operation plate 20, 30 that are supported in the device body 10 so as to be able to rotate, and a first and second spring 26, 36 that bias the first and the second operation plate 20, 30 in a direction to separate, respectively, from the first and second main wall 12a, 15a. First and second packing 25, 35 that are elastic and permeable to air are mounted, respectively, on the first and second operation plate 20, 30. When the outside is at positive pressure during strong winds, the first operation plate 20 approaches the first main wall 12a due to the wind pressure from the outside and ventilation is performed through only the first packing 25. When the outside is at negative pressure during strong winds, the second operation plate 30 approaches the second main wall 15a due to the wind pressure from the inside and ventilation is performed through only the second packing 35.

Description

Ventilation equipment

The present invention relates to a ventilator used to maintain an indoor environment well by replacing indoor dirty air with fresh outdoor air.

The ventilator disclosed in Patent Document 1 as the first embodiment is incorporated in the upper part of a window sash of a general building or the like, and includes a device main body and an operation plate that extend horizontally in a straight line. The apparatus main body has a main wall in which a ventilation port is formed. The upper edge of the actuating plate is supported by the apparatus body so as to be slidable and rotatable in the vicinity of the main wall of the apparatus body. The operating plate is slid horizontally by manual operation of the operation knob, and the opening degree of the ventilation port formed in the main wall is adjusted by moving toward and away from the main wall by the action of the cam mechanism during this sliding process .

A non-breathable packing is attached to the main wall side surface of the lower edge of the operating plate. This packing hits the main wall when the operating plate approaches the main wall, thereby sealing the space between the operating plate and the main wall, and the ventilation amount becomes substantially zero.

The ventilation device disclosed in Patent Document 2 is installed on the wall of a high-rise building or the like. Below the main wall of the apparatus main body which extends horizontally and horizontally, the operation plate is arranged in parallel. When the operation plate is moved up and down by the operation of the operation lever, the opening degree of the ventilation port formed in the main wall is adjusted. Non-breathable packing is provided on both side edges of the operation plate. When the operation plate moves upward, the packing hits the main wall, the space between the operation plate and the main wall is sealed, and the ventilation amount becomes substantially zero.

In the above-described ventilators of

Patent Documents

1 and 2, if a strong wind blows outdoors when the operating plate is at a position away from the main wall, the wind enters the room and is excessively supplied indoors. For this reason, as disclosed in

Patent Documents

3 and 4, a ventilator that automatically closes the ventilator by wind pressure when the wind is strong has been developed.

In the ventilators disclosed in Patent Document 3 and Patent Document 4, the operation plate is rotatably supported in the vicinity of the main wall where the ventilation port is formed and on the outdoor side. The operation plate is maintained at a position away from the main wall by its own weight or the force of a spring when there is no wind. When the wind is strong, the operating plate receives wind pressure and abuts against the main wall against its own weight or the force of the spring, and closes the ventilation opening. This prevents strong winds from entering the room.

JP 2005-264425 A JP 2010-203707 A Shokai 57-185891 JP-A-7-233980

In the ventilators of

Patent Documents

3 and 4, as described above, when the ventilator receives a strong wind (when the outdoor air pressure is significantly higher than the indoor air pressure in the ventilator), the operation plate closes the vent opening. It is possible to prevent excessive air from entering the room through the ventilation openings. However, for example, when the ventilator is located on the opposite side of the building from where the strong wind hits and the outside of the ventilator has negative pressure (that is, contrary to the above, the indoor atmospheric pressure is significantly higher than the outdoor atmospheric pressure) Time), the working plate remains open and the indoor air is exhausted excessively.

In the ventilator of Patent Document 3, ventilation is not possible at all when the operating plate is closed during strong winds. In the ventilator of Patent Document 4, even if the operating plate is closed during a strong wind, the ventilation port is not completely closed and an opening with a small area remains, and ventilation can be secured through this opening. However, wind noise is generated because the wind passes through a small opening. Further, when strong wind passes through a small opening, a turbulent flow (vortex flow) is generated in the vicinity of the opening. The turbulent flow causes the operating plate to vibrate and hit the main wall in small increments, resulting in noise.

The present invention solves the above problems, and in a ventilator,
A main body having a first main wall having a first ventilation port, a second main wall having a second ventilation port, and a ventilation passage connecting the first ventilation port and the second ventilation port;
A first operating plate rotatably supported by the apparatus main body so as to approach or leave the first main wall;
A second actuating plate rotatably supported by the apparatus main body so as to approach or leave the second main wall;
A first spring that biases the first operating plate in a direction away from the first main wall;
A second spring that biases the second operating plate in a direction away from the second main wall;
A first packing having elasticity and air permeability attached to at least one of the opposing surfaces of the first operating plate and the first main wall at a position away from the rotation axis of the first operating plate;
A second packing having elasticity and air permeability attached to at least one of the opposing surfaces of the second operating plate and the second main wall at a position away from the rotation axis of the second operating plate;
With
The first actuating plate is disposed on the outdoor side from the first main wall, and faces the first main wall by wind pressure from the outside.
The second actuating plate is disposed indoors from the second main wall, and is directed to the second main wall by wind pressure from the indoor.

According to the above configuration, when the outdoor air pressure of the ventilator becomes significantly higher than the indoor air pressure, such as when receiving a strong wind, the first operating plate resists the first spring by receiving the wind pressure from the outdoors. Approach the first main wall. Thereby, ventilation is performed substantially only through the first packing, and excessive air can be prevented from entering the room. On the other hand, if the indoor air pressure is significantly higher than the outdoor air pressure, such as when there is a ventilator on the side opposite to the side receiving strong wind, the second operating plate will receive the wind pressure from the indoor side. , Approaches the second main wall against the second spring. Thereby, ventilation is performed substantially only through the second packing, and excessive air can be prevented from being discharged to the outside.

As described above, ventilation can be performed while avoiding excessive air flow during strong winds. Moreover, as the wind pressure increases, the amount of compression of the packing increases and the flow cross-sectional area of the packing decreases, so that the air flow rate can be suppressed. Further, since air passes through the first packing or the second packing, it is possible to prevent the generation of wind noise and to suppress the generation of turbulent flow and the generation of noise accompanying the vibration of the operation plate.

Preferably, the first main wall is disposed on the indoor side, the second main wall is disposed on the outdoor side, and the first and second operating plates and the first and second springs are the first and second springs. It arrange | positions in the said ventilation channel | path between two main walls.
According to this configuration, the first and second operation plates and the first and second springs can be accommodated in the apparatus main body, so that the occurrence of a failure can be suppressed.

Preferably, the apparatus main body includes a hollow elongated structure and a pair of closing members that close both end openings of the elongated structure, and the first and second actuation plates and the first and second actuation plates. The rotation axis extends in the longitudinal direction of the elongated structure.

Preferably, the apparatus main body is provided with first and second stoppers, and these first and second stoppers rotate by locking the first and second operation plates at predetermined spaced positions, respectively. regulate.
According to this configuration, the first and second operation plates can be stabilized at the separated position.

Preferably, the rotation axis of the first operation plate is disposed from the first ventilation port in a first direction orthogonal to the longitudinal direction of the elongated structure, and the rotation axis of the second operation plate is The second ventilation port is disposed in a second direction opposite to the first direction.
According to this configuration, the first and second operation plates can be disposed close to each other by the reverse arrangement of the first and second operation plates, and the ventilation device can be downsized. In addition, the first and second stoppers restrict the rotation of the first and second operation plates in the opening direction, so that the first and second operations can be performed even if the first and second operation plates are arranged close to each other. Interference between components including the plate and the first and second springs can be avoided.
More preferably, the first and second actuating plates are parallel at the predetermined separation position.

Preferably, the first and second stoppers are provided on each of the pair of closing members of the apparatus main body, and the pair of first stoppers locks both longitudinal ends of the first operation plate, The second stopper engages both ends of the second working plate in the longitudinal direction.
According to this configuration, the rotation restriction of the first and second operation plates can be reliably performed.

In one embodiment, the apparatus main body is incorporated in a window sash, the first and second main walls are vertical, and the first ventilation port is spaced apart from the first main wall in the longitudinal direction. And a manual operating plate that is in contact with the indoor side surface of the first main wall and is slidably supported. The manual operating plate is formed at a plurality of pitches equal to the first ventilation port. Has a control port.
According to this configuration, when cooling or heating is performed indoors, the efficiency of cooling and heating can be improved by suppressing the ventilation amount to zero or by the manual operation plate.

In another aspect, the first and second main walls are horizontal, the first main wall is disposed above the second main wall, and the first operating plate is disposed below the first main wall. The second actuating plate is disposed above the second main wall, and the first actuating plate is biased in a direction away from the first main wall by the weight of the first actuating plate and the first spring. And an auxiliary spring for urging the first operating plate toward the first main wall.
According to this configuration, even if the first operating plate receives a force in a direction away from the first main wall due to its own weight, the first operating plate is canceled by canceling part or all of its own weight by the auxiliary spring. The wind pressure can reliably rotate upward toward the first main wall.

The material constituting the first and second packings is made of an open cell foamed resin. According to this configuration, desired elasticity and air permeability of the packing material can be obtained relatively easily.

According to the present invention, it is possible to satisfactorily control the amount of air entering the interior and to satisfactorily control the amount of air exhausted outdoors. Moreover, generation of noise can be prevented.

It is a perspective view of the ventilation apparatus which makes 1st Embodiment of this invention, and omits the intermediate part of a longitudinal direction. It is sectional drawing which shows the ventilation apparatus in the state from which the wind was weak and the 1st, 2nd action | operation board was spaced apart from the 1st, 2nd main wall, respectively. It is sectional drawing which shows the ventilation apparatus in the state in which the 1st action plate approached the 1st main wall when the wind was strong and the outdoors was a positive pressure. It is sectional drawing which shows the said ventilation apparatus in the state which the 2nd action | operation board approached the 2nd main wall when the wind was strong and the outdoors was a negative pressure. It is sectional drawing of the ventilation apparatus which makes 2nd Embodiment of this invention. It is sectional drawing of the ventilation apparatus which makes 3rd Embodiment of this invention. It is a principal part expanded sectional view of FIG. It is sectional drawing of the ventilation apparatus which makes 4th Embodiment of this invention.

Hereinafter, a window sash built-in type ventilation device according to a first embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the ventilation device 1 includes a device body 10. The apparatus main body 10 includes a hollow elongated structure 10a that extends horizontally and linearly, and a pair of closing members 10b (only one of which is shown in FIG. 1) that closes the openings at both ends of the elongated structure 10a. In FIG. 1, the middle part in the longitudinal direction of the elongated structure 10a is omitted and is shown shorter than the actual length.

As shown in FIGS. 1 and 2, the elongated structure 10 a is configured by connecting two

extrusion mold members

11 and 15. The mold member 11 has an indoor vertical portion 12, a lower connecting portion 13, and an upper connecting portion 14.

The lower connecting portion 13 has an inverted U shape, and the upper edge portion of the glass plate 101 is fitted therein. The upper connecting portion 14 has a pair of ribs projecting upward, and the pair of ribs are inserted into the upper collar 102 of the window sash. In this way, the ventilation device 1 is incorporated in the window sash.

The upper part of the indoor vertical part 12 of the above-mentioned mold member 11 is retreated to the outdoor side from the lower part, and is provided as a main wall 12a (first main wall). A large number of vertically elongated ventilation openings 12x (first ventilation openings) are formed in the main wall 12a at equal intervals in the longitudinal direction.

The indoor vertical portion 12 is formed with

engagement grooves

12b and 12c that are adjacent to the upper and lower edges of the main wall 12a and are located on the indoor side of the main wall 12a. A manual operation plate 40, which will be described later, is slidably supported in the

engagement grooves

12b and 12c.

A shaft support portion 12d is formed at the intersection of the main wall 12a and the upper connecting portion 14. The shaft support portion 12d is adjacent to the main wall 12a on the outdoor side of the main wall 12a, and is located above (in the first direction) the ventilation port 12x. An operation plate 20 (first operation plate), which will be described later, is rotatably supported on the shaft support portion 12d.

The mold 15 has a substantially L-shaped cross section, and has a vertical main wall 15a (second main wall) facing outdoors and a horizontal portion 15b protruding from the lower end edge of the main wall 15a to the indoor side. The upper and lower edges of the main wall 15 a are connected to the edges on the outdoor side of the lower connection part 13 and the upper connection part 14 of the mold member 11. A large number of vertically elongated ventilation openings 15x (second ventilation openings) are formed in the main wall 15a at equal intervals in the longitudinal direction. The ventilation port 15x is disposed below the ventilation port 12x.

A shaft support portion 15d is formed at the intersection between the main wall 15a of the mold member 15 and the horizontal portion 15b. The shaft support 15d is adjacent to the main wall 15a on the indoor side of the main wall 15a, and is located below (in the second direction) the ventilation port 15x. An operation plate 30 described later is rotatably supported on the shaft support portion 15d.

The internal space of the apparatus main body 10 is provided as a ventilation passage 16 connecting the

ventilation openings

12x and 15x. This ventilation passage 16 is connected indoors through a ventilation port 12x, and is connected outdoors via a ventilation port 15x.

In the apparatus main body 10, the

operation plates

20 and 30 made of an extrusion mold material are accommodated. The actuating plate 20 (first actuating plate) rotates or moves away from or approaches the main wall 12a by inserting a shaft section with a circular cross section formed on the upper edge of the actuating plate 20 into the shaft support 12d of the apparatus main body 10. Supported as possible.

A packing 25 (first packing) is attached to the surface facing the main wall 12a at the lower part of the operating plate 20 (part away from the rotation axis). The packing 25 extends along the entire length of the working plate 20 and has a uniform thickness.

The packing 25 is made of a foamed resin (for example, urethane foam) having an open cell structure, and has air permeability and elasticity in the thickness direction (cushioning property). As the packing 25 of the present embodiment, a commercially available filter having a density of 20 to 40 kg / m ³ can be used, and for example, a product (MF-13) manufactured by INOAC can be used.

The working plate 20 is urged in a direction away from the main wall 12a against its own weight by a plurality of tension coil springs 26 (first springs) arranged at intervals in the longitudinal direction of the working plate 20. . Both ends of the coil spring 26 are respectively hung on a spring hook portion protruding from the lower portion of the operating plate 20 to the outdoor side and a spring hook portion formed on the upper connecting portion 14 of the mold member 11.

The actuating plate 30 (second actuating plate) is rotated or separated from the main wall 15a by inserting a shaft portion having a circular cross section formed at the lower edge thereof into the shaft support portion 15d of the apparatus body 10. It is supported movably.

A packing 35 (second packing) similar to the above-described packing 25 is attached to the surface facing the main wall 15a in the upper part of the operation plate 30 (part away from the shaft part serving as the rotation axis).

The operating plate 30 is biased in a direction away from the main wall 15a by a plurality of tension coil springs 36 (second springs) arranged at intervals in the longitudinal direction of the operating plate 30. Both ends of the coil spring 36 are respectively hung on a spring hook portion protruding from the upper portion of the operating plate 30 to the indoor side and a spring hook portion formed on the horizontal portion 15 b of the mold member 15.

Two stoppers 28 and 38 (first and second stoppers) are formed on each of the pair of closing members 10b of the apparatus main body 10 so as to protrude toward the ventilation passage 16. These

stoppers

28 and 38 regulate the rotation of the operating

plates

20 and 30 in the separating direction by the tension coil springs 26 and 36 and determine a predetermined separating position.

Furthermore, the ventilation device 1 is provided with an operation plate 40 (manual operation plate). A large number of control ports 41 having the same shape as the ventilation ports 12x of the main wall 12a are formed in the operation plate 40 at the same pitch. The operation plate 40 is in contact with the indoor side surface of the main wall 12a, and its upper and lower edges are engaged with the

engagement grooves

12b and 12c of the apparatus main body 10, respectively, so that it can slide in the apparatus main body 10 in the longitudinal direction. It is supported.

As shown in FIG. 1, a support plate 45 is attached to the right end of the elongated structure 10a. The support plate 45 is disposed on the indoor side of the right end portion of the operation plate 40, and is fixed in a state where the upper and lower edges thereof are engaged with the

engagement grooves

12b and 12c.

The operation knob 46 is supported on the support plate 45 so as to be slidable in the longitudinal direction (left-right direction) of the apparatus body 10. The operation knob 46 is connected to the operation plate 40. By operating the operation knob 46, the operation plate 40 has an opening position where the control port 41 coincides with the ventilation port 12x of the main wall 12a, and a control port. 41 is slid between a closed position that does not coincide with the vent 12x.

In the ventilator 1 having the above configuration, when there is no wind or when the wind is weak, the operating

plates

20 and 30 are separated from the

main walls

12a and 15a by the force of the coil springs 26 and 36 as shown in FIG. Normal ventilation is performed through the gaps between 12a and 15a and the

ventilation openings

12x and 15x. The operating plate 20 is locked by a pair of stoppers 28 at both ends thereof, and is maintained at a predetermined separation position. The operation plate 30 is also locked by the pair of stoppers 38 and is maintained at a predetermined separation position.

In the above-mentioned separated position, the

operation plates

20 and 30 are inclined and are parallel to each other. The coil springs 26 and 36 are disposed at the upper and lower portions of the ventilation passage 16, respectively, and part of them enter the narrow space of the

operation plates

20 and 30. Therefore, the two

operation plates

20 and 30 and the two

coil springs

26 and 36 can be assembled without interfering with each other in a limited space between the

main walls

12a and 15a that are parallel to each other.

When the ventilator 1 receives strong wind and the outdoor side becomes positive pressure, the operating plate 20 receives wind pressure in the direction of the main wall 12a. When the wind pressure increases, the operating plate 20 rotates against the coil spring 26, approaches the main wall 12a as shown in FIG. 3, and the packing 25 contacts the main wall 12a. As a result, it is possible to prevent a strong wind from entering the room and causing excessive air supply. At this time, the operating plate 30 receives a large force in a direction away from the main wall 15a, but is not further rotated from a predetermined separation position because it is locked by the stopper 38.

Since the operation plate 30 is disposed on the lower side and the operation plate 20 is disposed on the upper side, the operation plate 20 receives the wind pressure from the outside without being obstructed by the operation plate 30 and rotates toward the main wall 12a. be able to.

As described above, even when the working plate 20 approaches the main wall 12a and the packing 25 is sandwiched between the working plate 20 and the main wall 12a, the packing 25 has an open cell structure. Since it is made of foamed resin and has air permeability, air flows into the interior of the packing 25 as indicated by arrows in FIG. Therefore, the indoor environment can be maintained well.
Note that when the operating plate 20 reaches the proximity position from the separated position, the amount of inflow of air decreases, but the elasticity and air permeability of the packing 25 are determined so that the amount of inflow at this time can be sufficiently secured.

3, when the wind pressure further increases from the state shown in FIG. 3, the operation plate 20 is further pushed toward the main wall 12 a to compress the packing 25. The compression cross section of the packing 25 is reduced by the compression of the packing 25. Thus, as the wind pressure increases, the compression amount of the packing 25 increases and the flow cross-sectional area decreases, so that an increase in the amount of air flowing into the room can be suppressed.

When the actuating plate 20 is in the approach position, air flows into the room through many small air passages inside the packing 25, so that wind noise is generated when high-pressure air flows from the opening surrounded by the rigid member. Does not occur. Further, since no large turbulent flow is generated in the vicinity of the working plate 20, no vibration of the working plate 20 occurs, and no noise due to this vibration is generated.

When the ventilator 1 is disposed on the opposite side of the building to the side receiving strong wind, the outdoor becomes negative pressure, and the indoor air is exhausted to the outside. When the wind pressure from the inside increases, the operating plate 30 rotates against the coil spring 36 toward the main wall 15a. As a result, as shown in FIG. 4, it is possible to prevent the packing 35 from hitting the main wall 15a and exhausting it excessively from the inside, and to continue ventilation. The operation of the packing 35 is the same as that of the packing 25.
At this time, the operating plate 20 receives a large force in a direction away from the main wall 12a, but is not further rotated from a predetermined separation position because it is locked by the stopper 28.

Since the operation plate 30 is disposed below and the operation plate 20 is disposed above, the operation plate 30 receives the wind pressure from the inside without being obstructed by the operation plate 20 and rotates toward the main wall 15a. be able to.

In this embodiment, the opening degree of the ventilation port 12x can be adjusted by sliding the operation plate 40 by operating the operation knob 46. Thereby, when cooling or heating is performed, the amount of air flow can be suppressed to zero or small, and the efficiency of cooling or heating can be increased.

Next, another embodiment of the present invention will be described. In these embodiments, components corresponding to the embodiments described earlier are assigned the same reference numerals, and detailed descriptions thereof are omitted.
The ventilation apparatus 2 of 2nd Embodiment shown in FIG. 5 is installed in the wall of a high-rise building. Briefly, in FIG. 5, reference numeral 103 denotes a support frame that is installed on the wall of the building and supports the lower edge of the glass plate 104. The support frame 103 is made of a mold that extends horizontally and has a vertical wall 103a on the outdoor side and a horizontal wall 103b on the indoor side. The vertical wall 103a is formed with an elongated opening 103x extending in the longitudinal direction of the support frame 103, and the horizontal wall 103b is formed with a large number of ventilation holes 103y at intervals in the longitudinal direction of the support frame 103. An internal space between the vertical wall 103a and the horizontal wall 103b is provided as an air passage 103z.

A lid member 105 extending in the longitudinal direction of the support frame 103 is disposed on the horizontal wall 103b. The passage 103z is closed when the lid member 105 is set, and the passage 103z is opened when the lid member 105 is removed.

The ventilation device 2 is inserted into the passage 103z from the opening 103x of the support frame 103. The apparatus main body 50 of this ventilation apparatus 2 has the elongate structure body 50a which makes a hollow similarly to the ventilation apparatus 1 of 1st Embodiment, and the obstruction | occlusion member 50b which block | closes the both-ends opening of this elongate structure body 50a. . The elongated structure 50a is configured by connecting two

extrusion mold members

51 and 55 together.

One extrusion mold member 51 has a vertical main wall 51a (first main wall) which is disposed indoors and has a ventilation port 51x, and a horizontal portion 51b in which a spring hook portion is formed. The other extruded mold 55 is arranged on the outdoor side and on a vertical main wall 55a (second main wall) having a ventilation port 55x, upper and lower

horizontal portions

55b and 55c, and an extension of the main wall 55a. The ventilation device 2 is attached to the support frame 103 by fixing the flange portion 55d to the vertical wall 103a of the support frame 103.

Since the arrangement and operation of the

operation plates

20 and 30, packings 25 and 35, coil springs 26 and 36, and

stoppers

28 and 38 are the same as those in the first embodiment, detailed description is omitted.

The ventilation device 3 of the third embodiment shown in FIGS. 6 and 7 is installed on the support frame 103 of the high-rise building as in the second embodiment. A large number of vent holes 103x ′ are formed in the vertical wall 103a on the outdoor side of the support frame 103 at intervals in the longitudinal direction of the support frame 103, and the horizontal wall 103b on the indoor side is formed in the longitudinal direction of the support frame 103. An elongated elongate opening 103y ′ is formed. The ventilation device 3 is inserted into the passage 103z through the opening 103y '.

The device main body 60 of the ventilation device 3 includes a horizontally elongated hollow elongated structure 60a and a closing member 60b that closes both end openings of the elongated structure 60a. The elongated structure 60a is configured by connecting two upper and lower

extrusion mold members

61 and 65.

One extruded mold 61 is disposed on the indoor side and has a horizontal main wall 61a (first main wall) having a ventilation port 61x (first ventilation port), and a pair of vertically extending from the main wall 61a. And a flange 61b. The other extruded mold member 65 is a pair of a horizontal main wall 65a (second main wall) disposed on the outdoor side and having a ventilation port 65x (second ventilation port), and a pair of standing upright from both side edges of the main wall 65a. A standing wall 65b is provided. The pair of upright walls 65 b are fixed to the pair of flange portions 61 b of the extrusion mold member 61. The indoor main wall 61a is disposed above the outdoor main wall 65a.

This embodiment is different from the first and second embodiments in that the

main walls

61a and 65a that are parallel to each other are horizontal, but the

operation plates

20, 30, packings 25, 35, coil springs 26, 36, and stoppers. Since the arrangement and operation of 28 and 38 are the same as those of the first embodiment, detailed description thereof is omitted.

In this embodiment, the operating plate 20 receives a force in a direction away from the main wall 61a downward due to its own weight and the coil spring 26. Therefore, the resistance when heading to the main wall 61a due to outdoor wind pressure is large. Therefore, in this embodiment, a torsion spring 70 (auxiliary spring) is provided. The torsion spring 70 is wound around a shaft 71 supported by one standing wall 65b of the extrusion mold member 65, and one piece is in contact with the standing wall 65b. An extension member 72 made of a leaf spring is fixed to the other piece. The extension member 72 is in contact with a spring hook portion on the lower surface of the operation plate 20 and urges the operation plate 20 upward, that is, toward the main wall 61a.

The force of the torsion spring 70 is almost equal to the weight of the operation plate 20. During normal operation, the operating plate 20 is locked to the stopper 28 by the force of the coil spring 26 and maintained in the separated position. When the operation plate 20 receives an upward force due to the wind pressure from the outside, it moves toward the main wall 61a. At this time, since the torsion spring 70 and the gravity are offset, the operating plate 20 can be reliably rotated to a position where the packing 25 contacts the main wall 61a.

In the fourth embodiment shown in FIG. 8, the ventilation device 4 has an indoor unit 4A and an outdoor unit 4B. The indoor unit 4A is installed on the upper horizontal wall 106a of the support frame 106 incorporated in the high-rise building so as to protrude downward, and the outdoor unit 4B is protruded upward on the lower horizontal wall 106b. is set up. A device 107 for manually opening and closing the passage is installed on the indoor unit 4A.

The indoor unit 4A has an extruded mold member 81 extending in the horizontal direction, and a plurality of U-shaped brackets 82 fixed to the mold member 81 at equal intervals in the longitudinal direction. The mold member 81 has a horizontal main wall 81a. The main wall 81a has a large number of ventilation openings 81x (first ventilation openings) formed at equal intervals in the longitudinal direction.

The outdoor unit 4B has an extruded mold member 85 extending in the horizontal direction and a plurality of U-shaped brackets 86 fixed to the mold member 85 at equal intervals in the longitudinal direction. The mold member 85 has a horizontal main wall 85a. The main wall 85a has a large number of ventilation openings 85x (second ventilation openings) formed at equal intervals in the longitudinal direction.

The operating plate 20 is supported on the mold 81 of the indoor unit 4A, the coil spring 26 is bridged between the operating plate 20 and the bracket 82, and the torsion spring 70 is provided on the bracket 82. The torsion spring 70 of the present embodiment applies an upward force to the operating plate 20 via the hinge 75, but the action is the same as that of the third embodiment. The bracket 82 is provided with a mat 83 (first stopper) that restricts the rotation of the operation plate 20 in the separation direction.

The operating plate 30 is supported on the mold member 85 of the outdoor unit 4B, and a coil spring 36 is bridged between the operating plate 30 and the bracket 85. The bracket 86 is provided with a mat 87 (second stopper) that restricts the rotation of the operation plate 30 in the separating direction.

In the ventilation device 4, an internal space between the

horizontal walls

106 a and 106 b of the support frame 106 is provided as a ventilation passage 16. The apparatus main body of the ventilation device 4 includes not only the

mold members

81 and 85 and the

brackets

82 and 86 but also the support frame 106.

The present invention is not limited to the above embodiment, and various aspects can be adopted. The first and second packings are not particularly limited as long as they have elasticity and air permeability, and may be nonwoven fabrics made of fibers. The packing may be provided on the main wall, or may be provided on both the operation plate and the opposing surface of the main wall.

The first and second stoppers may be constituted by one edge of a slit of a shaft support formed in the apparatus main body.

The present invention can be applied to a ventilator that can restrict ventilation in a strong wind.

Claims

A first main wall (12a; 51a; 61a; 81a) having a first ventilation port (12x; 51x; 61x; 81x) and a second main wall having a second ventilation port (15x; 55x; 65x; 85x) ( 15a; 55a; 65a; 85a), and a device main body (10; 50; 60) comprising a ventilation passage (16) connecting the first ventilation port and the second ventilation port;
A first actuating plate (20) rotatably supported by the apparatus main body so as to approach or leave the first main wall;
A second actuating plate (30) rotatably supported by the apparatus main body so as to approach or leave the second main wall;
A first spring (26) for urging the first operating plate in a direction away from the first main wall;
A second spring (36) for urging the second operating plate in a direction away from the second main wall;
A first packing (25) having elasticity and air permeability attached to at least one of the opposing surfaces of the first operating plate and the first main wall at a position away from the rotation axis of the first operating plate;
A second packing (35) having elasticity and air permeability attached to at least one of the opposing surfaces of the second operating plate and the second main wall at a position away from the rotation axis of the second operating plate;
With
The first actuating plate is disposed on the outdoor side from the first main wall, and faces the first main wall by wind pressure from the outside.
The ventilation device, wherein the second operation plate is disposed on the indoor side from the second main wall and is directed to the second main wall by wind pressure from the indoor.
The first main wall (12a; 51a; 61a; 81a) is disposed on the indoor side, the second main wall (15a; 55a; 65a; 85a) is disposed on the outdoor side, and the first and second operation plates are provided. 2. The (20, 30) and the first and second springs (26, 36) are arranged in the ventilation passage (16) between the first and second main walls. Ventilation device according to.
The apparatus main body (10; 50; 60) has a hollow elongated structure (10a; 50a; 60a) and a pair of closing members (10b; 50b; 60b) which close both end openings of the elongated structure. The first and second actuating plates (20, 30) and the pivot axes of the first and second actuating plates extend in the longitudinal direction of the elongated structure. The ventilation device described.
The apparatus main body (10) is provided with first and second stoppers (28, 38), and the first and second stoppers respectively connect the first and second operation plates (20, 30) to predetermined parts. The ventilation apparatus according to claim 3, wherein the ventilation apparatus is locked at a separated position to restrict rotation.
The rotation axis of the first operating plate (20) is arranged in a first direction perpendicular to the longitudinal direction of the elongated structure (10a; 50a; 60a) from the first ventilation port (12x),
The rotation axis of the second operating plate (30) is arranged in a second direction opposite to the first direction from the second ventilation port (12x; 51x; 61x). The ventilation apparatus according to claim 4.
The ventilation device according to claim 5, wherein the first and second operation plates (20, 30) are parallel to each other at the predetermined separation position.
The first and second stoppers (28, 38) are provided on each of the pair of closing members (10b; 50b; 60b) of the apparatus main body, and the pair of first stoppers are arranged on the first operating plate ( 20) The longitudinal direction both ends of 20) are latched, and a pair of said 2nd stopper latches the longitudinal direction both ends of the said 2nd action | operation board (30), The ventilation apparatus of Claim 4 characterized by the above-mentioned.
The apparatus main body (10) is incorporated in a window sash, and the first and second main walls (12a, 15a) are vertical,
A plurality of the first ventilation openings (12x) are formed in the first main wall at intervals in the longitudinal direction,
In addition, a manual operation plate (40) that is in contact with the indoor side surface of the first main wall and is slidably supported is provided, and the manual operation plate is formed at a constant pitch with the first ventilation port. Ventilation device according to claim 3, characterized in that it has a mouth (41).
The first and second main walls (61a, 65a) are horizontal, the first main wall is disposed above the second main wall,
The first operating plate (20) is disposed below the first main wall, the second operating plate (30) is disposed above the second main wall,
The first operating plate is biased in a direction away from the first main wall by the weight of the first operating plate and the first spring (26),
The ventilation device according to claim 4, further comprising an auxiliary spring (70) for urging the first operating plate toward the first main wall.
The ventilator according to claim 1, wherein the material constituting the first and second packings (25, 35) is made of a foamed resin having an open cell structure.