TWI693368B - Ventilation device and doors and windows - Google Patents

Abstract

The present invention provides a ventilator capable of improving manufacturing cost and manufacturing efficiency and further ensuring durability, and a door and window provided with the ventilator. The ventilator 10 includes: a frame body 20 having an opening 22 communicating in the indoor and outdoor directions; and a blade member 26 moved by opening and closing the opening 22 on the outdoor side of the opening 22 The amount of air passing through the opening 22 is adjusted; the outer panel 25 is supported by the frame 20 on the outdoor side of the blade member 26 and can open and close the opening 22. At this time, the blade member 26 is rotatably supported with respect to the frame body 20 and bears a load in the opening direction that moves to the outdoor side to open the opening 22. Moreover, each of the blade member 26 and the outer panel 25 can perform an opening operation until at least a part thereof protrudes to the outdoor side from the outdoor main front surface 37 of the housing 20 to the outdoor position.

Description

Ventilation device and doors and windows

The present invention relates to a ventilator for ventilating a room, and a door and window provided with the ventilator.

Ventilation devices are sometimes installed on the external walls of buildings such as houses or buildings together with windows. The ventilation device can ventilate the room without opening the window, which has advantages in terms of safety and anti-theft.

For example, Patent Literature 1 discloses a ventilator equipped with an air volume adjustment plate that opens and closes an opening of a housing to adjust the air volume entering the room. In this structure, an outer panel cover is fixed to the frame body. The outer panel cover covers the outdoor side of the frame body except for the vent communicating with the opening, and the air volume adjustment plate can move on the indoor side of the outer panel cover.

[Prior Technical Literature] [Patent Literature]

Patent Document 1: Japanese Patent Laid-Open No. 2015-190682.

As described above, in the structure of Patent Document 1, the outer panel cover is fixed to the outdoor side of the housing, and the air volume adjustment plate can move inside. Therefore, the movable range of the air volume adjustment plate is limited to the depth of the frame, and it is very difficult to ensure the ventilation efficiency, especially when the wind is weak.

The present invention has been completed in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide a ventilation device capable of improving ventilation efficiency, and a door and window provided with the ventilation device.

The present invention is a ventilator, comprising: a frame body having an opening communicating in an indoor and outdoor direction; and a blade member moved by opening and closing the opening on the outdoor side of the opening , To adjust the amount of air passing through the opening; and the outer panel, supported by the frame on the outdoor side of the blade member, and capable of opening and closing the opening; wherein the blade member relative to the frame or the outer panel It is rotatably supported and receives a load in the opening direction that moves to the outdoor side to open the opening, and the blade member and the outer panel can reach at least a portion of the front side of the frame toward the room The outer side is extended to the rotation position to perform the opening operation.

According to such a configuration, the ventilator can open the blade member and the outer panel to a position that protrudes from the front side of the outdoor side toward the outdoor side when ventilating Set so far. Therefore, it is possible to suppress the depth width of the ventilation device (frame body) to a minimum, and to ensure a large opening area of the ventilation port. In addition, it is possible to efficiently introduce wind (building wind) flowing along the outer wall of the building where the ventilation device is installed. As a result, sufficient ventilation performance can be obtained even when there is no wind or weak wind, thereby improving ventilation efficiency.

In the ventilator of the present invention, the front end of the blade member may be provided with a wind-receiving surface that is in a state where the blade member abuts or approaches the outer panel. The inner surface of the outer panel extends in a direction away from the indoor side. In this way, the wind pressure can be efficiently received by the wind receiving surface when the blade member starts to move. As a result, it is possible to avoid a situation where the blade member is in close contact with the inner surface of the outer panel and cannot efficiently withstand the wind pressure, making it difficult to start moving.

In the ventilator of the present invention, the wind receiving surface may be provided on a blade tip member which is flexible and is attached to the tip portion of the blade member or may be rotatably attached It is provided at the front end of the blade member. In this way, when the blade member moves, the blade tip member deforms or rotates due to the wind pressure received by the wind-receiving surface, and can withstand the wind pressure in a more vertical direction. As a result, the blade member can withstand wind pressure more efficiently.

In the ventilator of the present invention, a waterproof sheet may be formed protrudingly formed on the inner surface of the blade member, and the waterproof sheet may be formed on the blade member In a state of moving to the indoor side to close the opening, it is interposed in the ventilation path formed between the inner surface and the opening. In this way, even if, for example, wind and rain are encountered during ventilation by the ventilation device, rainwater can be trapped by the waterproof sheet. As a result, it is possible to suppress rainwater or the like from seeping into the indoor side.

In the ventilator of the present invention, the blade member and the outer panel may be supported on one side of the opening, respectively, and the respective opening directions to the outside of the chamber are the same. In this way, since the blade member and the outer panel are opened in the same direction from the outer wall surface of the building, for example, building wind blowing along the outer wall surface can be introduced more efficiently, thereby further improving the ventilation efficiency.

The ventilator of the present invention may be configured to further include: an inner panel supported by the frame on the indoor side of the opening, and capable of opening and closing the opening; and a link mechanism to connect The opening and closing operation of the outer panel is interlocked with the opening and closing operation of the inner panel. In this way, as long as the inner panel is opened from the indoor side, the outer panel and the blade member following it can be opened, and the ventilation operation is easier.

The present invention is a door and window comprising: a ventilator of the aforementioned structure; and a window connected to at least one vertical frame of the aforementioned frame. According to this With the structure, the doors and windows of the ventilation device and the window can be integrated into the building, and the appearance quality and construction efficiency are high.

According to the present invention, the ventilation efficiency can be improved.

10: Ventilation device

12: doors and windows

14: Window

16: window frame

16a: upper window frame

16b: Lower window frame

16c, 16d: vertical window frame

18: Window glass

20: Frame

20a: upper frame

20b: Lower frame

20c, 20d: vertical frame

22: opening

24: inside panel

24a, 25a: shaft piece

24b: Hollow structure

24c: Door stop

25: outside panel

25b, 25c: side wall

25d: open end

26: Blade member

26a: front end

26b: Door stop

26c: inclined part

26d: Main body

28: partition wall

28a: Loaded

28b: next film

28c, 28d: portrait

29a, 29b: inner wall components

30: Screen doors and windows

32, 38: hinge piece

33: Indoor side main view

34: Airtight parts

36: handle

37: Outdoor side main view

39: Inside

40: Linkage mechanism

41: waterproof member

42, 43: arm member

42a, 42b, 43a: rotation axis

44: Slider

45: through hole

46: Rail

47: Block

48: holding spring

49: Brush strip

50: shaft member

50a: cylinder

50b: Shaft

50c: Face down

52: Bearing member

52a: facing up

54, 58a: waterproof sheet

56: blade front end member

56a: Windward side

58: Waterproof blade

60: dead weight mechanism

62: vent

64: coil spring

66: torsion spring

G: gap

S: ventilation path

S1: Indoor side path

S2: Outdoor side path

H: height

W: wind

X, Y, Z: Arrow

FIG. 1 is an elevation view of a door and window equipped with a ventilator according to an embodiment of the present invention from the outdoor side.

Fig. 2 is an elevation view of the door and window shown in Fig. 1 viewed from the indoor side.

3 is a cross-sectional view of the ventilator in a state where the inner panel and the outer panel are closed.

4 is a cross-sectional view of the ventilator in a state where the inner panel and the outer panel are opened.

Fig. 5 is a longitudinal sectional view of a ventilator.

Fig. 6 is a front view showing the structure of the self-weight mechanism, (A) in Fig. 6 is a diagram showing the state of the blade member in no wind or weak wind, and (B) in Fig. 6 is a diagram showing the state of the blade member under strong wind Figure.

7 is a cross-sectional view showing the operation of the blade member when wind force is applied to the ventilator, (A) in FIG. 7 is a diagram showing the state of the blade member in no wind or weak wind, (B in FIG. 7 ) Is a diagram of the state after the blade member moves from the state shown in (A) in FIG. 7 to the closing direction, and (C) in FIG. 7 is the blade member further from the state shown in (B) in FIG. 7 to the closing direction Diagram of the state after movement.

Hereinafter, the ventilator of the present invention will be exemplified by the doors and windows provided with the device, and the best embodiment will be given, which will be described in detail with reference to the drawings.

FIG. 1 is an elevation view of a door and window 12 provided with a ventilator 10 according to an embodiment of the present invention from the outdoor side. FIG. 2 is an elevation view of the door and window 12 shown in FIG. 1 viewed from the indoor side. The ventilator 10 is provided at the opening of the exterior wall of the building as a door and window 12 connected to the window 14, and is a device for introducing outdoor air to ventilate the room.

As shown in FIGS. 1 and 2, the window 14 is a fixed window, and includes a window frame 16 and a window glass 18 fixed to the opening of the window frame 16. The window frame 16 is a four-frame structure in which an upper window frame 16a, a lower window frame 16b, and left and right vertical window frames 16c and 16d are assembled. Each window frame (16a to 16d) is, for example, an extruded profile of metal such as aluminum or resin such as polyvinyl chloride resin (PVC).

In this embodiment, the door and window 12 of the structure which connected the window 14 which is a fixed window and the ventilator 10 are illustrated. The door and window 12 may be a structure in which windows of various structures such as sliding windows such as left and right sliding windows, swing windows such as casement windows, and vertical sliding windows are connected to the ventilator 10 in addition to fixed windows. The door and window 12 may also have a structure in which the ventilator 10 is not connected to the window 14 and, for example, is independently installed between the exterior walls of the building. The ventilation device 10 may also be provided separately.

As shown in FIGS. 1 and 2, the ventilator 10 is a constant-air-volume ventilator, and includes: a frame 20; an inner panel 24 and an outer panel 25 for opening and closing the opening 22 of the frame 20; And the blade member 26 constitutes an air volume adjustment valve for adjusting the air volume passing through the opening 22.

The frame body 20 has a four-frame structure in which an upper frame 20a, a lower frame 20b, and left and right vertical frames 20c and 20d are assembled. Each frame (20a to 20d) is, for example, an extruded profile of metal such as aluminum or resin such as polyvinyl chloride resin (PVC). The ventilator 10 is connected and fixed by one vertical frame 20c and one vertical window frame 16c of the window 14 to constitute the door and window 12.

In the present invention, the depth direction refers to the indoor and outdoor directions of the door and window 12, that is, the direction from the indoor side to the outdoor side or the reverse direction (the direction indicated by the arrow Z in the figure), and the depth surface refers to the surface extending along the depth direction . The front view direction refers to the direction orthogonal to the depth direction, and in the case of vertical frames 20c, 20d, etc. that are elongated in the up-down direction, it refers to the left-right direction orthogonal to its longitudinal direction (the direction indicated by the arrow X in the figure). In the case of an upper frame 20a, a lower frame 20b, and the like that are elongated in the left-right direction, it refers to an up-down direction (direction indicated by arrow Y in the figure) orthogonal to its longitudinal direction. The main view plane refers to the plane along the main view direction. The inside (inner periphery) of the frame-shaped member refers to, for example, the portion within the frame where the opening 22 is provided in the frame body 20. The outer side (outer periphery) of the frame-shaped member refers to, for example, an outer frame portion of the frame body 20 fixed to the main body of the building.

3 is a cross-sectional view of the ventilator 10 in a state where the inner panel 24 and the outer panel 25 are closed. 4 is a cross-sectional view of the ventilator 10 in a state where the inner panel 24 and the outer panel 25 are opened. FIG. 5 is a longitudinal sectional view of the ventilator 10.

As shown in FIGS. 3 to 5, the opening 22 communicates inside and outside the housing 20 in the indoor and outdoor directions. The opening 22 constitutes a part of the ventilation path S for circulating air inside and outside the ventilator 10 to ventilate the room. The opening 22 is formed inside the frame-shaped partition wall 28 that protrudes and is formed inside the frame body 20.

The partition wall 28 is a wall member that partitions the ventilation path S communicating with the indoor and outdoor in the housing 20 in the indoor and outdoor directions. The ventilation path S is partitioned by the partition wall 28 into an indoor side path S1 and an outdoor side path S2, and these paths S1 and S2 communicate with each other through the opening 22. The partition wall 28 is formed in a frame shape by upper pieces 28a and lower pieces 28b protruding inward from the inner deep surface of the upper frame 20a and the lower frame 20b, and vertical pieces 28c and 28d protruding inward from the inner deep surface of the vertical frames 20c and 20d . In the case of this embodiment, the upper piece 28a is provided on the inner wall member 29a installed on the inner deep surface of the upper frame 20a, and the lower piece 28b is provided on the inner wall member 29b installed on the inner deep surface of the lower frame 20b . The inner wall members 29a and 29b may be integrally formed with the frames 20a and 20b, respectively.

A screen door window 30 is provided on the opening 22. Installation and fixing of screen door and window 30 Deep inside the pieces (28a to 28d). The screen door window 30 may be configured to be openable and closable using a guide rail or the like.

The inner panel 24 is a door leaf that is rotatably supported by the vertical frame 20d on one side on the indoor side of the opening 22. On one side of the inner panel 24, a shaft piece 24a along the up-down direction is provided. On the inner deep surface of the vertical frame 20d, a hinge piece 32 in the vertical direction is provided at a position on the indoor side of the vertical piece 28d. The shaft piece 24a and the hinge piece 32 are rotatably engaged to become a hinge for turning the inner panel 24. The inner panel 24 can be extended from a fully closed position (refer to FIG. 3) accommodated in the depth width of the housing 20 to a fully open position (refer to FIG. 4) that protrudes from the indoor side front view surface 33 of the housing 20 to the indoor side Opening and closing.

The inner panel 24 has a hollow structure portion 24b in a portion corresponding to the opening 22 when viewed from the front, and the hollow structure portion 24b has a thickness in the depth direction. The hollow structure portion 24b is in a state of occupying most of the indoor side path S1 of the ventilation path S at the fully closed position. The upper and lower edges of the hollow structure portion 24b are in contact with the airtightness 34 attached to the pieces 28a and 28b, respectively. Door stoppers 24c are provided on the inner sides of the inner panel 24 at the upper, lower, left, and right edges in the depth direction. Each door stop piece 24c is in contact with an airtight member 34 attached to a protruding piece provided on the inner deep surface of each frame (20a to 20d). As a result, the inner panel 24 has its upper, lower, left, and right edges contacting the airtight members 34 at the fully closed position to ensure airtightness and watertightness (see FIGS. 3 and 5 ). A handle 36 for opening and closing operation is attached to the indoor side surface of the inner panel 24.

The outer panel 25 is a door leaf that is rotatably supported by the vertical frame 20d on one side on the outdoor side of the opening 22. A shaft piece 25a in the vertical direction is provided on one side of the outer panel 25. On the inner deep surface of the vertical frame 20d, a hinge piece 38 along the vertical direction is provided at a position on the outdoor side of the vertical piece 28d. The shaft piece 25 a and the hinge piece 38 are rotatably engaged to become a hinge for turning the outer panel 25. The outer panel 25 can be moved from a fully closed position (refer to FIG. 3) accommodated in the depth width of the housing 20 to a fully open position (refer to FIG. 4) that extends outward from the outdoor front view surface 37 of the housing 20. Opening and closing.

The outer panel 25 has a bottomed container structure that is thinner than the inner panel 24 on the substantially same plane as the outdoor front view surface 37 of the housing 20 at the fully closed position. Side walls 25b and 25c protruding toward the indoor side are provided on the indoor side surface of the outer panel 25, that is, on the left and right sides of the inner surface 39, respectively. In the outer panel 25, the open end 25d on the opposite side to the hinge piece 38 side protrudes toward the vertical frame 20c from the side wall 25b. This constitutes a shielding structure that makes it difficult to visually observe the inside of the device from the gap between the outer panel 25 and the vertical frame 20c in the fully closed position (see FIG. 3 ).

A waterproof member 41 that is in contact with the upper end surface of the outer panel 25 at the fully closed position is provided at the outdoor side end portion of the inner deep surface of the upper frame 20a. When the open outer panel 25 is closed to the fully closed position, the waterproof member 41 is in sliding contact with the upper end surface of the outer panel 25 and has rainwater accumulated on the upper end surface Wait for the function of sweeping to the outside. The waterproof member 41 can also prevent rainwater or the like from seeping into the outdoor-side path S2 from the gap between the outer panel 25 and the upper frame 20a at the fully closed position.

As shown in FIGS. 3 to 5, the opening and closing operations of the inner panel 24 and the outer panel 25 are linked by a pair of upper and lower link mechanisms 40. Each link mechanism 40 has a pair of arm members 42 and 43 and a slider 44. Each link mechanism 40 has a vertically symmetric structure, and the structure is the same except for the above. Therefore, the link mechanism 40 on the lower side will be mainly described below, and the same symbol will be given to the link mechanism 40 on the upper side and the detailed description will be omitted. .

One end of the arm member 42 on one side is rotatably connected to the inner panel 24 via a rotating shaft 42a, and the other end is rotatably connected to the slider 44 via a rotating shaft 42b. The other end of the arm member 43 is rotatably connected to the outer panel 25 via a rotation shaft 43a, and the other end is rotatably connected to the slider 44 via a rotation shaft 42b shared with the arm member 42. The slider 44 is slidably engaged with the guide rail 46 provided on the inner deep surface of the lower frame 20b. The guide rail 46 is protrudingly provided on the inner deep surface of the inner side of the lower piece 28b provided on the inner wall member 29b constituting the lower frame 20b. The guide rail 46 extends in the longitudinal direction of the lower frame 20b. In addition, the guide rail 46 of the upper link mechanism 40 protrudes and is provided on the inner deeper surface of the indoor side than the upper piece 28a provided on the inner wall member 29a constituting the upper frame 20a.

Therefore, in a state where the inner panel 24 and the outer panel 25 are in the fully closed position, the link mechanism 40 is in the sliding position where the slider 44 is closest to the hinged side vertical frame 20d of each panel 24, 25 (see FIG. 3 ). When the handle 36 is grasped and the inner panel 24 is opened to the indoor side from this state, the arm member 42 on the one side opens toward the indoor side with the rotary shaft 42b on the slider 44 side as the rotation center. Thereby, the slider 44 is pulled by the arm member 42 and slides from the vertical frame 20d side to the opposite vertical frame 20c side. At this time, the other side arm member 43 is pushed by the sliding slider 44 to push the outer panel 25 toward the outdoor side. Then, the outer panel 25 and the inner panel 24 are linked, and the opening operation is also performed. Finally, as shown in FIG. 4, the slider 44 comes into contact with the stopper 47 provided on the guide rail 46, and the panels 24 and 25 are in the fully open position. In this state, the slider 44 is held by the holding spring 48 attached to the stopper 47, so that the fully opened state of the panels 24 and 25 can be maintained.

On the other hand, when the inner panel 24 is closed toward the side opposite to the opening operation, the slider 44 is detached from the holding spring 48, and this time it slides toward the vertical frame 20d side, so that the outer panel 25 also performs the closing operation.

It should be noted that, as shown in FIG. 5, the slider 44 is arranged on the indoor side of the upper piece 28 a and the lower piece 28 b. Therefore, the upper and lower arm members 43 on the outer panel 25 side are inserted into the through holes 45 provided in the upper piece 28a and the lower piece 28b, respectively. Here, the outdoor side of the through-hole 45 is plugged with a brush bar 49 to prevent foreign matter such as insects or garbage from entering the indoor side from the through-hole 45. It should be noted that foreign matter enters the indoor side from the opening 22 through the screen door Window 30 to prevent it.

As shown in FIGS. 3 to 5, the blade member 26 is rotatably supported by the vertical frame 20 d on one side on the outdoor side of the opening 22. The blade member 26 may be supported rotatably with respect to the outer panel 25. On one side of the blade member 26, a shaft member 50 extending in the vertical direction along the vertical frame 20d is provided. A bearing member 52 is provided on the inner deep surface of the frame body 20 on the outdoor side of the vertical piece 28d and the indoor side of the hinge piece 38. The shaft member 50 is rotatably supported about the shaft with respect to the bearing member 52, and the blade member 26 is supported rotatably with respect to the vertical frame 20d. The blade member 26 can be accommodated from the fully closed position (refer to FIG. 3) accommodated in the outdoor side path S2 within the depth width of the frame 20 to a fully open position that protrudes to the outdoor side from the outdoor side front view surface 37 of the frame 20 ( Refer to Figure 4) to open and close. The blade member 26 always receives a load in the opening direction moving toward the outdoor side.

The blade member 26 is a plate-shaped member, and has a door stop portion 26b, an inclined portion 26c, a main body portion 26d, and a front end portion 26a in this order from the hinge-side shaft member 50 toward the open end side front end portion 26a. The blade member 26 is an extruded profile of metal such as aluminum or resin such as polyvinyl chloride resin (PVC).

With reference to the fully-closed position shown in FIG. 3 as a reference, the door stop 26b is a plate extending from the shaft member 50 in the direction X from the vertical frame 20d toward the vertical frame 20c (hereinafter referred to as the "X1 direction") unit. The inclined portion 26c is from The plate portion in which the front end of the door stop portion 26b is slightly closer to the base end and gradually inclined toward the outdoor side toward the X1 direction. The main body portion 26d is a plate portion extending toward the X1 direction at a position abutting or close to the inner surface 39 of the outer panel 25. Two waterproof sheets 54 protrude from the inner surface of the main body 26d. The front end portion 26a is a pocket-shaped portion provided at the front end portion of the main body portion 26d, and the blade front end member 56 is installed therein.

The blade member 26 forms a ventilation port 62 in the gap between the blade tip member 56 provided at the front end portion 26a and the vertical frame 20c. This vent 62 serves as an inflow port for the wind to enter the room through the opening 22 from the outside, and the opening area changes according to the movement of the blade member 26. The vent area 62 has the smallest opening area when the blade member 26 is in the fully closed position, and has the largest opening area when the blade member 26 is in the fully open position. In the case of this embodiment, as can be seen from FIG. 3, the fully closed position of the blade member 26 refers to a position where the vent area 62 (and the opening 22) is not completely closed, but a position whose opening area is the smallest.

The waterproof sheets 54 are arranged side by side on the inner surface of the main body portion 26d in the X direction. Each waterproof sheet 54 is a plate part which is gradually inclined toward the indoor side toward the X1 direction and whose front end is bent in the X1 direction. Each waterproof sheet 54 is a member for removing moisture such as rainwater flowing into the outdoor path S2 from the gap between the open end 25d of the outer panel 25 and the vertical frame 20c and flowing along the inner surface of the blade member 26 to the opening 22.

It may be configured such that a waterproof blade is attached to the vertical frame 20c (vertical piece 28c) 58 (refer to the two-dot chain line in FIG. 3). That is, if the waterproof sheet 54 and the waterproof blade 58 are alternately arranged at the fully closed position of the blade member 26, a crank-shaped waterproof path can be formed, and the waterproof performance can be further improved. The waterproof blade 58 is, for example, a structure obtained by substantially inverting the main body portion 26d of the blade member 26, and has a pair of waterproof sheets 58a arranged alternately with the waterproof sheet 54.

The blade tip member 56 is formed of a rubber-based material, a resin-based material, or the like, and thus has flexibility and a certain degree of rigidity. The blade tip member 56 is arranged to be gradually inclined toward the indoor side from the tip portion 26a toward the X1 direction. That is, in a state where the blade member 26 abuts or approaches the inner surface 39 of the outer panel 25 (see FIGS. 3 and 4 ), the blade tip member 56 is away from the inner surface 39 of the outer panel 25 toward the indoor side Up extension. Therefore, in a state where the blade member 26 abuts or approaches the inner surface 39, a gap G is formed between the blade tip member 56 and the inner surface 39. At this time, the front end of the blade front end member 56 is in a state of protruding to the indoor side from the depth width (side wall 25b) of the outer panel 25 (see FIG. 3). The surface (outer surface) on the gap G side of the blade tip member 56 functions as a wind-receiving surface 56a that receives wind flowing in from the ventilation port 62.

Next, the dead weight mechanism 60 that moves the blade member 26 in the opening direction will be described. FIG. 6 is a front view showing the structure of the dead weight mechanism 60, (A) in FIG. 6 is a diagram showing the state of the blade member 26 in the absence of wind or weak wind, and (B) in FIG. 6 is a diagram showing that the blade member 26 is subjected to Figure of strong wind conditions.

As shown in FIG. 6, the dead weight mechanism 60 includes a shaft member 50 and a bearing member 52.

The shaft member 50 has a cylindrical body 50a which is provided on one side of the blade member 26 (side of the vertical frame 20d side) and extends in the vertical direction; a pair of shaft portions 50b and 50b are formed from the cylindrical body 50a The upper and lower openings protrude upward and downward respectively; and the downward end surface 50c surrounds the lower shaft portion 50b. Each shaft portion 50b has a structure in which a base end portion is fitted into the cylindrical body 50a and a front end portion protrudes upward and downward, but it may be a structure integral with the cylindrical body 50a. The downward end surface 50c is an inclined surface (inclined surface) inclined in the vertical direction with respect to the axial direction of the shaft portion 50b. That is, the downward end surface 50c has a shape in which the lower end portion of the cylindrical body 50a is cut in an oblique direction crossing the axial direction.

The bearing member 52 is provided with a pair of upper and lower sides so as to correspond to the upper and lower shaft portions 50b and 50b. The upper bearing member 52 is a cylindrical body that rotatably supports the upper shaft portion 50b and can be lifted up and down. The lower bearing member 52 is a cylindrical body that rotatably supports the lower shaft portion 50b and can be raised and lowered. The lower bearing member 52 is provided with an upward end surface 52a surrounding the inserted shaft portion 50b. The upward end surface 52a is an inclined surface (oblique surface) that is inclined in the vertical direction with respect to the axial direction of the shaft portion 50b. That is, the upward end surface 52a is a shape obtained by cutting the bearing member 52 in an oblique direction crossing the axial direction.

As shown in (A) in FIG. 6, no wind is applied to the blade member 26 Or, in the state of the external force of the outer panel 25, the downward end surface 50c of the shaft member 50 and the upward end surface 52a of the bearing member 52 are in close contact with each other to form a single cylindrical shape. That is, in a state where no load other than its own weight is applied to the blade member 26, due to the weight of the blade member 26, the downward end surface 50c slides down on the upward end surface 52a, and the blade member 26 rotates in the opening direction. Therefore, the blade member 26 is in the fully open position shown in FIG. 4.

When the blade member 26 rotates in the closing direction from the state shown in FIG. 6(A) and receives external force from the wind or the outer panel 25, as shown in FIG. 6(B), the downward end surface 50c faces The upper end surface 52a slides upward, and the blade member 26 rotates in the closing direction. Therefore, in a state where the blade member 26 is in the fully closed position shown in FIG. 3, the blade member 26 is arranged at a position after raising the height H in FIG. 6 from the fully closed position.

The mechanism for moving the blade member 26 in the opening direction may be a mechanism other than the dead weight mechanism 60. For example, instead of the dead weight mechanism 60, a coil spring 64 or a torsion spring 66 indicated by a two-dot chain line in FIG. 3 may be used. The coil spring 64 is connected between the blade member 26 and the inner surface 39 of the outer panel 25 and is an elastic body that always biases the blade member 26 in the opening direction close to the outer panel 25. The torsion spring 66 is placed on the shaft member 50 and is an elastic body that always urges the blade member 26 in the opening direction.

Next, the operation of the ventilation device 10 will be described. 7 is a cross-sectional view showing the operation of the blade member 26 when wind force is applied to the ventilator 10 7 (A) in FIG. 7 shows the blade member 26 in a state of no wind or weak wind, and (B) in FIG. 7 is the blade member 26 is closed from the state shown in (A) in FIG. 7 FIG. 7(C) is a diagram of a state after the blade member 26 has moved further from the state shown in FIG. 7(B) to the closing direction.

In the state where the inner panel 24 and the outer panel 25 are placed in the fully closed position as shown in FIG. 3, the blade member 26 is in a state of being pressed by the outer panel 25 in the closing direction. Therefore, the blade member 26 is in a position where the downward end surface 50c of the shaft member 50 slides upward on the upward end surface 52a of the bearing member 52 against the load in the opening direction based on its own weight (refer to (B) in FIG. 6 ).

In this state, the blade member 26 is at a fully closed position where the door stop portion 26b abuts or approaches the vertical piece 28d (see FIG. 3). In addition, even when the blade member 26 is in the fully closed position, the ventilation opening 62 having the smallest opening area through which wind can flow can be secured between the blade member 26 and the vertical piece 28c. However, in this case, the inner panel 24 is in the fully closed position and the indoor side of the ventilation path S (opening 22) is completely closed by the airtight seal 34. Therefore, wind or rain will not enter the room.

Next, when ventilating the room, the handle 36 is grasped to open the inner panel 24 to the room side. In this way, the outer panel 25 is also opened to the outdoor side by the link mechanism 40, from the outer panel 25 The pushing force to the blade member 26 is released. Therefore, the blade member 26 performs the opening operation so as to follow the outer panel 25 that performs the opening operation by the dead weight given by the dead weight load mechanism 60 in the opening direction. As shown in FIG. 4, when the inner panel 24 and the outer panel 25 are in the fully open position, the blade member 26 also abuts or approaches the inner surface 39 of the outer panel 25 and becomes the fully open position in which further rotation toward the opening direction is restricted.

In this state, the outer panel 25 and the blade member 26 largely extend to the outdoor side (see FIG. 4 ). Therefore, the opening area of the ventilation port 62 becomes the largest, and even if there is no wind or weak wind, the amount of air that enters the room from the opening 22 can be ensured, and sufficient ventilation performance can be ensured.

When the ventilation device 10 receives strong wind in the state shown in FIG. 4, the wind flowing in from the ventilation port 62 is blown from the gap G onto the wind-receiving surface 56 a of the blade tip member 56. If the wind pressure received by the entire wind-receiving surface 56a exceeds the self-weight in the opening direction given to the blade member 26 by the dead weight load mechanism 60, the blade member 26 starts to move in the closing direction (refer to the arrow indicated by the two-dot chain line in FIG. 4 ). Furthermore, when the wind force increases, the blade member 26 gradually moves in the closing direction, and the opening area of the ventilation port 62 decreases, thereby suppressing the amount of air flowing into the room. As a result, since the amount of wind entering the room through the opening 22 can be maintained substantially constant regardless of the magnitude of the wind force outside, the ventilation can be performed with a constant amount of wind.

However, when the blade member 26 is in the fully closed position shown by the two-dot chain line in FIG. 4 After the position, even if the wind force further increases, the opening area of the vent 62 will not change. However, at this time, the opening area of the ventilation port 62 is very small. Therefore, although the amount of air entering the room gradually increases, it can be prevented from becoming too large.

In addition, when the blade member 26 performs the closing operation in this manner, when the blade member 26 starts to move from the fully opened position, the wind pressure of the wind W can be smoothly received by the wind receiving surface 56a of the blade tip member 56 (refer to ( A)). Therefore, it is possible to avoid that the wind force required for the entire length of the blade member 26 to be in contact with the outer panel 25 to start moving is excessive, and the blade member 26 starts to move more smoothly. That is, in the state of (A) in FIG. 7, the blade member 26 is oriented in substantially the same direction as the direction of the wind W. Therefore, although it is in a state where it is difficult to start by the turning operation of the shaft member 50, The blade tip member 56 can be started smoothly. It should be noted that, instead of the blade tip member 56, the tip portion 26 a of the blade member 26 as a profile may be provided with the same shape as the blade tip member 56 (wind receiving surface 56 a ). In addition, the blade tip member 56 may be configured such that its root is rotatably supported by the tip portion 26a of the blade member 26. In this case, the blade tip member 56 does not necessarily have to be flexible.

In the present embodiment, the blade tip member 56 has flexibility. Therefore, due to the wind pressure received by the wind-receiving surface 56a, the blade tip member 56 is deformed as if turning the head toward the indoor side (see (B) in FIG. 7). In this way, the blade tip member 56 can withstand the wind pressure of the wind W in a direction closer to the vertical, thereby The blade member 26 starts to move more smoothly. As a result, due to the pressing action of the blade tip member 56 deformed as shown in (C) in FIG. 7, the blade member 26 can smoothly perform the closing operation. Note that, when the blade tip member 56 is configured to be pivotally supported on the tip portion 26a of the blade member 26, the blade tip member 56 will also be as shown in FIGS. 7(B) to 7 In the structural example shown in (C) in the same rotation, the blade member 26 can smoothly and synchronously operate.

As described above, the ventilator 10 of the present embodiment includes the housing 20 having the opening 22 communicating in the indoor and outdoor directions, and the blade member 26 having the opening 22 on the outdoor side of the opening 22. Move in the direction of opening and closing to adjust the amount of air passing through the opening 22; and the outer panel 25 is supported by the frame 20 on the outdoor side of the blade member 26, and can open and close the opening 22. At this time, the blade member 26 is rotatably supported with respect to the frame 20 or the outer panel 25, and receives a load in the opening direction that moves to the outdoor side to open the opening 22. In addition, the blade member 26 and the outer panel 25 can each perform an opening operation until at least a portion thereof extends to the outdoor side from the outdoor side front view surface 37 of the housing 20.

In this way, the ventilator 10 can open the blade member 26 and the outer panel 25 to a position that protrudes to the outdoor side from the outdoor side front view surface 37 when ventilating. Therefore, it is possible to suppress the depth width of the ventilator 10 (frame 20) to a minimum, and to secure a large opening area of the vent port 62. In addition, it is possible to efficiently introduce wind (building wind) flowing along the outer wall of the building where the ventilation device 10 is installed. As a result, sufficient ventilation performance can be obtained even when there is no wind or weak wind, thereby improving ventilation efficiency. In addition, since the blade member 26 is provided, the blade member 26 is pushed by the wind pressure to perform a closing operation during a strong wind, and the opening area of the vent 62 is adjusted. Therefore, it is possible to perform ventilation with a required constant air volume even in strong winds and the like.

In the ventilator 10, the front end portion 26a of the blade member 26 is provided with a wind-receiving surface 56a that is in a state where the blade member 26 abuts or approaches the outer panel 25, and The inner surface 39 extends in a direction away from the indoor side. Thereby, when the blade member 26 starts to move, the wind pressure can be efficiently received by the wind receiving surface 56a. As a result, it is possible to avoid a situation where the blade member 26 is in close contact with the inner surface 39 of the outer panel 25 and cannot withstand wind pressure efficiently, making it difficult to start moving.

In this ventilator 10, the wind-receiving surface 56a is provided on the blade tip member 56 which is a blade tip member 56 which is mounted on the tip portion 26a of the blade member 26 and has flexibility, or is capable of The blade tip member 56 is rotatably attached to the tip of the blade member 26. Thereby, when the blade member 26 moves, the blade tip member 56 deforms or rotates due to the wind pressure received by the wind receiving surface 56a, so that it can withstand the wind pressure in a more vertical direction. As a result, the blade member 26 can withstand wind pressure more efficiently. It should be noted that since the blade tip member 56 is flexible Soft structure, when the blade member 26 accidentally closes due to wind pressure, etc., it is possible to suppress the damage of the blade member 26 or the frame 20 caused by the insertion of foreign objects and the like between the frame 20 Or the generation of noise.

In the ventilator 10, a waterproof sheet 54 protrudes from the inner surface of the blade member 26, and the waterproof sheet 54 is interposed between the inner surface and the inner surface in a state where the blade member 26 moves to the indoor side to close the opening 22 In the ventilation path S (outdoor path S2) formed between the openings 22. This makes it possible to capture rainwater with the waterproof sheet 54 even when, for example, wind and rain are encountered during ventilation by the ventilation device 10. As a result, it is possible to suppress the penetration of rain water or the like into the indoor side.

In the ventilator 10, the blade member 26 and the outer panel 25 are supported on one side of the opening 22, respectively, and their respective opening directions to the outside are the same. Therefore, since the blade member 26 and the outer panel 25 are uniformly opened in the same direction from the outer wall surface of the building, for example, building wind blowing along the outer wall surface can be introduced relatively efficiently, thereby further improving the ventilation efficiency.

In this ventilation device 10, the blade member 26 always receives a load in the opening direction due to its own weight. Therefore, even if the size such as the height or width of the ventilator 10 is changed, the size of the blade member 26 is similarly changed, so that the dead weight increases and decreases, and the surface area that receives wind pressure also increases and decreases. For example, when the height dimension of the blade member 26 increases In this case, its own weight increases, and its surface area also increases, while when the height size decreases, its own weight decreases, and its surface area also decreases. Therefore, the increase or decrease of the load in the opening direction based on the self-weight (gravity) is proportional to the increase or decrease of the wind force that can overcome the self-weight. As a result, regardless of the size of the blade member 26, the opening area of the ventilation port 62 is adjusted to a size corresponding to the wind force outdoors, thereby maintaining a constant ventilation air volume. In this way, even when the size of the blade member 26 is changed, the load in the opening direction of the blade member 26 based on its own weight is proportional to the pressure receiving area of the blade member 26 that receives wind force. Therefore, compared with the conventional structure using an elastic body, the opening and closing operation of the blade member 26 with respect to the wind is smoother, and it is not easy to cause a difference in performance due to the size of the device. In addition, compared with a structure that uses an elastic body to bias the blade member 26 toward the opening direction, the manufacturing cost and manufacturing efficiency can be improved, and the deterioration of the elastic body does not occur, so durability can be ensured.

It should be noted that the present invention is of course not limited by the above-mentioned embodiments, and can be freely changed within the scope not departing from the gist of the present invention.

10: Ventilation device

20: Frame

20c, 20d: vertical frame

22: opening

24: inside panel

24a, 25a: shaft piece

24b: Hollow structure

24c: Door stop

25: outside panel

25b, 25c: side wall

25d: open end

26: Blade member

26a: front end

26d: Main body

28: partition wall

28c, 28d: portrait

30: Screen doors and windows

32, 38: hinge piece

33: Indoor side main view

34: Airtight parts

36: handle

37: Outdoor side main view

39: Inside

40: Linkage mechanism

42, 43: arm member

42b: axis of rotation

44: Slider

46: Rail

47: Block

48: holding spring

50: shaft member

52: Bearing member

54: waterproof sheet

56: blade front end member

56a: Windward side

58: Waterproof blade

60: dead weight mechanism

62: vent

G: gap

S: ventilation path

S1: Indoor side path

S2: Outdoor side path

X, Z: Arrow

Claims (7)

A ventilator includes a frame body having an opening communicating in an indoor and outdoor direction; a blade member is adjusted by moving in a direction to open and close the opening on the outdoor side of the opening The air volume passing through the opening; and the outer panel, supported by the frame on the outdoor side of the blade member, and capable of opening and closing the opening; wherein the blade member is rotatable with respect to the frame or the outer panel It is supported and bears the load in the opening direction that moves to the outdoor side to open the opening; the blade member and the outer panel can each extend to at least a portion of the front side of the frame from the outdoor side of the frame to the outdoor side Opening operation is performed up to the rotation position. The ventilation device according to claim 1, wherein a wind-receiving surface is provided at a front end portion of the blade member, and the wind-receiving surface is in a state where the blade member abuts or approaches the outer panel, from the outer panel The inner face of the door extends in the direction away from the indoor side. The ventilation device according to claim 2, wherein the wind-receiving surface is provided on the blade tip member, and the blade tip member is flexible and is attached to the tip portion of the blade member or rotatably attached to The front end of the aforementioned blade member. The ventilating device according to any one of claims 1 to 3, wherein a waterproof sheet protrudes from the inner surface of the blade member, and the waterproof sheet is in a state where the blade member moves to the indoor side to close the opening , Interposed in the ventilation path formed between the inner surface and the opening. The ventilator according to any one of claims 1 to 3, wherein the blade member and the outer panel are supported on one side of the opening, respectively, and the opening directions of the respective openings to the outside of the room are the same. The ventilator according to claim 5, further comprising: an inner panel supported by the frame on the indoor side of the opening and capable of opening and closing the opening; and a link mechanism that connects the outer side The opening and closing operation of the panel interlocks with the opening and closing operation of the aforementioned inner panel. A door and window comprising: the ventilation device described in any one of claims 1 to 6; and a window connected to a vertical frame on at least one side of the frame body.

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