Ventilation member

Abstract

To provide a ventilation member having high reliability of a waterproof function.SOLUTION: A ventilation member 2 includes: a body part 10 which is mounted on a substrate skeleton 40 having a space 41 for ventilation therein, has a ventilation passage 5 capable of communicating with the space 41 for ventilation therein, and has an opening 17 making the ventilation passage 5 communicate with outside; and a barrier part 20 which is provided inside the body part 10 and makes rainwater infiltrating from the opening 17 collide therewith. The barrier part 20 includes: an inclination part 21 extending in an outer oblique upward direction; and a bent part 22 which is connected to the upper end of the inclination part 21 and is bent in an outward direction. Such the configuration efficiently shields a part of rainwater which infiltrates from the opening 17 and collides with the inclination part 21 by the bent part 22, and accordingly improves reliability of a waterproof function.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates to a ventilation member, and more particularly to a ventilation member attached to the eaves lower part for natural ventilation in an attic space or the like in a house.

Background Art

[0002] As a ventilation member attached to the eaves lower part, there is one shown in Patent Document 1.

[0003] FIG. 9 is a schematic cross-sectional view showing an attachment state of a conventional ventilation member to the eaves lower part.

[0004] Referring to FIG. 9, the ventilation member 110 includes a first vertical portion 111 extending downward, a first horizontal portion 112 connected to the upper end side of the first vertical portion 111 and extending outward, a second vertical portion 114 connected to the outer end portion of the first horizontal portion 112, extending vertically downward, and having a plurality of openings 113 formed continuously in the longitudinal direction at a predetermined interval in the longitudinal direction below, a second horizontal portion 115 connected to the lower end portion of the second vertical portion 114 and extending inward, and an inclined portion 116 connected to the inner end portion of the second horizontal portion 115 and extending obliquely upward outward.

[0005] In such a ventilation member 110, the air containing moisture in the building passes through the ventilation gap 117 from the ventilation path of the building (not shown) as shown by the double arrow in FIG. 9, enters the ventilation structure 110, and is then discharged to the outside through the opening 113. On the other hand, in the case where external air enters the building, the flow is opposite to the double arrow in FIG. 9, and thus the ventilation performance is exhibited.

[0006] Also, rainwater may enter the ventilation member 110 through the opening 113 in the same case as when external air enters the building. However, since the inclined portion 116 is formed in the ventilation member 110, it is difficult for rainwater to enter the ventilation gap 117. Thus, the ventilation member 110 is configured to exhibit ventilation performance and waterproof performance by the inclined portion 116.

Prior Art Documents

Patent Documents

[0007]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0008] However, in the conventional ventilation member as described above, when the force of wind and rain is strong, there is a risk that rainwater that has entered from the opening will overcome the inclined portion and enter the interior, and it cannot be said that the reliability of the waterproof function is sufficient.

[0009] This invention has been made to solve the above - mentioned problems, and an object thereof is to provide a ventilation member with higher reliability of the waterproof function.

Means for Solving the Problems

[0010] In order to achieve the above object, the invention according to claim 1 is a ventilation member attached to a base body having a ventilation space inside, comprising: a main body portion having a ventilation passage that can communicate with the ventilation space inside and an opening that communicates the ventilation passage with the outside; and a barrier portion provided inside the main body portion to collide with rainwater that has entered from the opening. The barrier portion includes an inclined portion that extends obliquely upward outward and a bent portion that is connected to the upper end of the inclined portion and bends outward.

[0011] With this configuration, a part of the rainwater that has entered from the opening and collided with the inclined portion is efficiently shielded by the bent portion.

[0012] The invention according to claim 2 is the invention according to claim 1, wherein the bent portion extends obliquely downward outward.

[0013] With this configuration, a part of the rainwater that has entered through the opening and collided with the inclined portion is reversed obliquely downward by the bent portion, preventing it from reaching the ventilation space.

[0014] The invention according to claim 3 is the configuration of the invention according to claim 1 or claim 2, wherein the main body portion extends vertically and includes a side plate portion in which a plurality of openings are formed below at predetermined intervals in the longitudinal direction, a top plate portion extending inward from the upper end of the side plate portion, and a bottom plate portion extending inward from the lower end of the side plate portion. The bent portion extends toward the side plate portion and leaves a horizontal distance from its tip to the side plate portion.

[0015] With this configuration, a part of the rainwater that has entered through the opening can be immediately made to collide with the barrier portion.

[0016] The invention according to claim 4 is the configuration of the invention according to claim 3, wherein the angle formed by the inclined portion and the bent portion is set to be from 90 degrees to 100 degrees.

[0017] With this configuration, a part of the rainwater that has entered through the opening and a part of the rainwater that has entered through the opening and collided with the bent portion via the inclined portion are efficiently shielded.

[0018] The invention according to claim 5 is the configuration of the invention according to claim 3, wherein the bent portion extends on or above a virtual plane including the upper end of the inclined portion and the upper end of the opening.

[0019] With this configuration, a part of the rainwater that has entered through the opening and collided with the bent portion via the inclined portion heads toward the opening.

[0020] The invention according to claim 6 is the configuration of the invention according to claim 3, wherein the bent portion extends such that the horizontal distance from its tip to the side plate portion is the same as or greater than the vertical distance from the upper end of the inclined portion to the top plate portion.

[0021] With this configuration, the bent portion does not cause excessive ventilation resistance.

[0022] According to the invention described in claim 7, the main body further includes a fixing portion that extends inward from the inner-side end of the top plate portion and is fixed to the upper surface of the base housing, and a mounting portion that hangs down from the inner-side end of the bottom plate portion and is fixed to the side surface of the base housing.

[0023] With such a configuration, the main body is fixed to the base housing at two locations, namely the fixing portion and the mounting portion.

Advantages of the Invention

[0024] As described above, in the invention according to claim 1, since a part of the rainwater that enters through the opening and collides with the inclined portion is efficiently shielded by the bent portion, the reliability of the waterproof function is improved.

[0025] In addition to the effect of the invention according to claim 1, in the invention according to claim 2, since a part of the rainwater that enters through the opening and collides with the inclined portion is inverted obliquely downward by the bent portion, preventing it from reaching the ventilation space, the reliability of the waterproof function is further improved.

[0026] In addition to the effect of the invention according to claim 1 or claim 2, in the invention according to claim 3, since a part of the rainwater that enters through the opening can be immediately made to collide with the barrier portion, the reliability of the waterproof function is further improved.

[0027] In addition to the effect of the invention according to claim 3, in the invention according to claim 4, since a part of the rainwater that enters through the opening and a part of the rainwater that enters through the opening and collides with the bent portion via the inclined portion are efficiently shielded, the reliability of the waterproof function is further improved.

[0028] In addition to the effect of the invention according to claim 3, in the invention according to claim 5, since a part of the rainwater that enters through the opening and collides with the bent portion via the inclined portion heads toward the opening, the reliability of the waterproof function is further improved.

[0029] In addition to the effect of the invention according to claim 3, in the invention according to claim 6, since the bent portion does not cause excessive ventilation resistance, an efficient ventilation effect and waterproof effect are exhibited.

[0030] In addition to the effects of the invention described in claim 3, in the invention described in claim 7, since the main body is fixed to the base structure at two locations, namely the fixing portion and the mounting portion, the mounting state of the ventilation member becomes strong and stable.

Brief Description of the Drawings

[0031]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Embodiments for Carrying Out the Invention

[0032] FIG. 1 is a perspective view showing the external shape of the ventilation structure according to the first embodiment of this invention, FIG. 2 is a front view showing the external shape of the ventilation structure shown in FIG. 1, FIG. 3 is an enlarged end view of line III-III shown in FIG. 2, and FIG. 4 is a cross-sectional view of line IV-IV shown in FIG. 1.

[0033] Referring to these figures, the ventilation structure 1 is formed by bending a flat plate made of a steel plate material such as a galvanized steel plate (registered trademark) having a longitudinally long rectangular shape in the short side direction, and is composed of a ventilation member 2 and a frame member 3 disposed above and outward of the ventilation member 2.

[0034] The ventilation member 2 is attached to a base body of the lower part under a coping such as a parapet having a ventilation space inside. The ventilation member 2 has a ventilation path 5 that can communicate with the ventilation space inside, and includes a main body part 10 having an opening 17 that communicates the ventilation path 5 with the outside, and a barrier part 20 provided inside the main body part 10 to collide with rainwater entering from the opening 17.

[0035] The main body part 10 extends in the vertical direction, and has a side plate part 11 in which a plurality of openings 17 are formed at predetermined intervals in the longitudinal direction below it, a top plate part 12 extending inward from the upper end of the side plate part 11, a bottom plate part 13 extending inward from the lower end of the side plate part 11, a fixing part 14 extending inward from the inner side end of the top plate part 12 and fixed to the upper surface of the base body 40, and an attachment part 15 hanging down from the inner side end of the bottom plate part 13 and fixed to the side surface of the base body 40. The fixing part 14 includes a folded-back part 16 formed by folding back the entire length of the inner side end thereof upward toward the outside.

[0036] The attachment part 15 hangs down from the inner side end of the bottom plate part 13, and then the entire length of its lower end is folded back inward upward, and its end is connected to the inner side end of an inclined part 21 described later. A plurality of drain holes 18 are formed at predetermined intervals at the lower end of the attachment part 15. The bottom plate part 13 has an inclination with a downward gradient toward the side plate part 11. By configuring in this way, rainwater that enters from the opening 17 of the side plate part 11 and collides with the inclined part 21 is discharged outward along the slight inclination of the bottom plate part 13. Also, the amount of water that has entered the gap inside the attachment part 15 is discharged outward through the drain holes 18. Therefore, it is possible to prevent rainwater from entering the inside of the base body 40. A water stop material 4 that can be elastically compressed is disposed at the corner formed by the bottom plate part 13 and the attachment part 15.

[0037] The barrier portion 20 is connected to the upper end of the attachment portion 15 and includes an inclined portion 21 that extends obliquely upward and outward, and a bent portion 22 that is connected to the upper end of the inclined portion 21 and bends outward.

[0038] The frame member 3 is disposed outside the side plate portion 11 and includes a front vertical portion 31 that extends in the vertical direction and a top surface portion 32 that extends inward from the upper end portion of the front vertical portion 31. When the frame member 3 is attached to the ventilation member 2, the lower surface of the top surface portion 32 abuts against the upper surface of the top plate portion 12, and the inner side end portion of the top surface portion 32 is located inside the folded-back portion 16.

[0039] Next, the inclined portion 21 and the bent portion 22 will be described.

[0040] Referring to FIG. 3, the inclined portion 21 extends obliquely upward and outward toward the top plate portion 12, leaving a vertical distance D1 from the upper end of the inclined portion 21 to the top plate portion 12 and a horizontal distance from the upper end of the inclined portion 21 to the side plate portion 11. The bent portion 22 is connected to the upper end of the inclined portion 21, forms an angle of 100 degrees with the inclined portion 21, and extends toward the side plate portion 11, leaving a horizontal distance D2 from the tip (the outer side end portion, the right side in FIG. 3) of the bent portion 22 to the side plate portion 11. Note that the horizontal distance D2 from the tip (the outer side end portion, the right side in FIG. 3) of the bent portion 22 to the side plate portion 11 is set to be longer than the vertical distance D1 from the upper end of the inclined portion 21 to the top plate portion 12 (D2 > D1). Also, the bent portion 22 extends on a virtual plane 23 that includes the upper end of the inclined portion 21 and the upper end of the opening 17.

[0041] Next, the effect of the bent portion 22 will be described.

[0042] FIG. 5 is a schematic diagram schematically showing the waterproof effect of the ventilation structure shown in FIG. 1 in comparison with the conventional structure, where (1) is the conventional structure and (2) and (3) are the structures of the present invention.

[0043] Referring to Fig. 5(1), for the rainwater that enters through the opening 102 of the side plate portion 101, as indicated by the arrows A and B in Fig. 5(1), there is rainwater that is blown upwards from the obliquely downward direction (arrow A) and rainwater that tries to blow in from the horizontal direction (arrow B).

[0044] The rainwater blown upwards from the obliquely downward direction (arrow A) first collides with the upper part of the inclined portion 103. When the force of the wind and rain is weak, the rainwater simply falls. However, when the force of the wind and rain is strong, as indicated by the arrow C in Fig. 5(1), in the conventional ventilation structure 100, there is a risk of the rainwater getting over the upper end of the inclined portion 103 and entering the interior. Also, a part of the rainwater blown upwards from the obliquely downward direction may not collide with the inclined portion 103, and there is also a risk of the rainwater entering through the part without the inclined portion 103.

[0045] The rainwater that tries to blow in from the horizontal direction (arrow B) first collides with the lower part of the inclined portion 103. When the force of the wind and rain is weak and the amount of rainfall is small, the rainwater simply falls. However, when the force of the wind and rain is strong and the amount of rainfall is large, in the conventional ventilation structure 100, there is a risk of the rainwater getting over the upper end of the inclined portion 103 and entering the interior.

[0046] Referring to Fig. 5(2), in contrast, the ventilation member 2 (ventilation structure 1) of the present invention is connected to the upper end of the inclined portion 21 and is provided with a bent portion 22 that bends outward. As a result, a part of the rainwater that collides with the inclined portion 21 further collides with the bent portion 22. Therefore, the force of the wind and rain that tries to get over the upper end of the inclined portion 21 is weakened. Consequently, since a part of the rainwater that enters through the opening 17 and collides with the inclined portion 21 is efficiently shielded, the reliability of the waterproof function of the ventilation member 2 is improved.

[0047] Also, since the bent portion 22 extends in the direction of the side plate portion 11 and is formed so as to leave a horizontal distance D2 from the tip of the bent portion 22 to the side plate portion, a part of the rainwater that enters through the opening 17 can be immediately made to collide with the barrier portion 20.

[0048] Furthermore, since the angle formed between the inclined portion 21 and the bent portion 22 is set to 100 degrees, a part of the rainwater that has entered through the opening 17 collides with the inclined portion 21 and then collides with the bent portion 22. Also, referring to FIG. 5(2), a part of the rainwater that has entered through the opening 17 and is heading towards the portion without the inclined portion 21 also collides with the bent portion 22. Thus, the bent portion 22 of the present invention has a shape that can shield both the rainwater that has collided with the inclined portion 21 and the rainwater that is heading towards the portion without the inclined portion 21.

[0049] Furthermore, since the bent portion 22 is formed to extend on a virtual plane 23 that includes the upper end of the inclined portion 21 and the upper end of the opening 17, a part of the rainwater that has entered through the opening 17 and collided with the bent portion 22 via the inclined portion 21 heads towards the opening 17. Also, among the rainwater that is blown up from the obliquely downward direction, a part of the rainwater that has not collided with the inclined portion 21 will not pass beyond the bent portion 22 unless a force causing it to flow upward acts after it has entered the interior through the opening 17. Thus, since the bent portion 22 efficiently shields the rainwater, the reliability of the waterproof function is further improved.

[0050] Furthermore, as described above, the horizontal distance D2 from the tip of the bent portion 22 to the side plate portion 11 is set to be longer than the vertical distance D1 from the upper end of the inclined portion 21 to the top plate portion 12. By configuring it in this way, even when the bent portion 22 is provided, the ventilation cross-sectional area from the tip of the bent portion 22 to the side plate portion 11 does not become narrower than before, and a sufficient ventilation path is ensured. Therefore, the gas flowing through the ventilation path 5 during ventilation is not compressed by the bent portion 22 and the ventilation resistance does not increase, and the bent portion 22 does not cause excessive ventilation resistance. On the other hand, the rainwater that has collided with the bent portion 22 reverses in the bending direction, that is, obliquely downward and outward. At this time, since the momentum of the wind and rain weakens, the risk of rainwater entering inward is reduced, and the waterproof effect is further improved. Thus, the ventilation member 2 of the present invention exhibits efficient ventilation and waterproof effects by the bent portion 22.

[0051] Next, as an example of the use of the ventilation structure 1 shown in FIG. 1, the mounting state to the under-eaves portion will be described.

[0052] FIG. 6 is a schematic cross-sectional view showing the mounting state of the ventilation structure shown in FIG. 1 to the lower part of the coping.

[0053] In addition, the outer surface side (the left side in FIG. 6) and the inner surface side in the lower part of the coping have a symmetrical structure, and ventilation structures 1b having a symmetrical structure with the ventilation structure 1a installed on the outer surface side are attached to the inner surface side in the same manner as the ventilation structure 1a. Therefore, the description of the mounting state will be made only for the outer surface side.

[0054] Referring again to FIGS. 1 and 3, first, the ventilation member 2 and the frame member 3 are prepared. Then, the inner end portion (in the left direction in FIG. 1) of the top surface portion 32 is inserted inside the folded portion 16, and the lower surface of the top surface portion 32 and the upper surfaces of the top plate portion 12 and the fixing portion 14 are hermetically joined by an adhesive, a double-sided tape, welding, or the like. Thereby, the ventilation structure 1a in which all members are integrated is configured. At this time, since the horizontal length of the top surface portion 32 is set to be longer than the horizontal lengths of the top plate portion 12 and the fixing portion 14, the front hanging portion 31 will be located outside the side plate portion 11.

[0055] Next, when attaching the thus configured ventilation structure 1a to the lower part of the coping, first, after covering the surfaces of the wall bases 43a and 43b in the base structure 40 with a waterproof sheet 52 having moisture permeability such as waterproof paper, an upper region including the upper end surface of the coping base 42 is covered with a saddle sheet 53 having higher waterproof performance so as to cover the waterproof sheet 52.

[0056] The body edge 44 is attached to the surface of the wall base 43 with appropriate intervals via the waterproof sheet 52.

[0057] Next, attach the ventilation structure 1a to the upper side of the base housing 40. First, place the fixing part 14 on the surface of the saddle sheet 53 that covers the upper end surface of the base housing 40, and bring the mounting part 15 into contact with the surface of the body edge 44. Thereby, the ventilation structure 1a is positioned. Then, drive a nail or a screw 55 through the mounting part 15 and fix it to the body edge 44. Thereby, the ventilation structure 1a is attached to a predetermined position of the base housing 40. In this way, since the main body part 10 of the ventilation structure 1 (ventilation member 2) is fixed to the base housing 40 at two locations, namely the fixing part 14 and the mounting part 15, the mounting state of the ventilation structure 1 (ventilation member 2) becomes strong and stable.

[0058] Thereafter, attach the exterior material 60 to the side of the base housing 40 via the body edge 44. At this time, at the upper end surface of the exterior material 60 and the upper end side of the back surface, the waterproof material 4 disposed on the surface of the mounting part 15 is elastically compressed and deformed. Thereby, the waterproof material 4 fills the space between the exterior material 60 and the mounting part 15 in a watertight manner to form a waterproof structure, so that water intrusion from this part to the base housing 40 side is prevented.

[0059] Furthermore, on the upper surface side of the base housing 40, cover the inner side end of the fixing part 14a of the ventilation structure 1a with a waterproof material (not shown) such as a waterproof tape. Thereby, it is possible to prevent water leakage from the gap between the top plate part 12a and the saddle sheet 53 to the base housing 40 side.

[0060] Next, attach a coping cover 47 to the pair of ventilation structures 1a and 1b installed in the coping lower part in this way via a cushioning material 46. At this time, hook the fold of the first side wall part 48 of the coping cover 47 on the lower end of the front hanging part 31a, and rotate the coping cover 47 around the hooked position. In this way, the coping cover 47 is installed at the upper end part of the base housing 40.

[0061] Then, drive a screw 50 into the through holes formed in the second side wall part 49 of the coping cover 47 and the front hanging part 31b of the ventilation structure 1b on the outer surface side to stably install the coping cover 47. Note that the screw 50 is set to a length that does not reach the exterior material 60, so as not to damage the exterior material 60.

[0062] In this way, the coping cover 47 is attached to the upper end of the base body 40 without driving screws or the like, and the coping structure 61 shown in FIG. 6 is completed.

[0063] In the ventilated state, as shown by the double arrows 56a, 56b, 56c, and 56d in FIG. 6, the air in the building moves between the top plate portion 12 and the side plate portion 11 of the ventilation structure 1 through the ventilation path 5, and moves outward through each of the openings 17 in the side plate portion 11. On the other hand, in the case where external air enters the building, the flow is opposite to that of the double arrows 56a, 56b, 56c, and 56d in FIG. 6.

[0064] On the other hand, the blown rainwater mainly enters the ventilation structure 1 through each of the openings 17 in the side plate portion 11 of the ventilation structure 1. However, most of the rainwater that enters from the openings 17 in the side plate portion 11 of the ventilation structure 1 is efficiently shielded by the inclined portion 21 and the bent portion 22 so as not to be able to enter the inner side.

[0065] Next, FIG. 7 is a schematic cross-sectional view showing the attachment state of the coping lower portion of the ventilation structure according to the second embodiment of the present invention, and is a view corresponding to FIG. 6 of the first embodiment.

[0066] Note that the configuration of this ventilation structure is basically the same as that of the ventilation structure 1 according to the first embodiment described above, and thus the following description will focus on the differences.

[0067] Referring to FIG. 7, the ventilation structure is composed of only the ventilation member 72 without using the frame member 3 in FIG. 1 described above. After attaching the ventilation member 72 to the base body 40, a coping fixture 65 is fixed to the coping base 42 of the base body 40 using nails, screws, etc. (not shown). By fixing the coping fixture 65, the fixing portion 73 is also fixed to the coping base 42. Thereafter, if the coping 66 is attached to the coping fixture 65 so as to cover the upper surfaces of the ventilation member 72 and the base body 40, the coping structure 71 shown in FIG. 7 is completed.

[0068] Next, FIG. 8 is a schematic cross-sectional view showing the mounting state of the ventilation structure according to the third embodiment of the present invention to the lower part of the coping, and is a view corresponding to FIG. 6 of the first embodiment.

[0069] In addition, since the configuration of this ventilation structure is basically the same as that of the ventilation structure 1 according to the first embodiment described above, the following description will focus on the differences.

[0070] Referring to FIG. 8, the ventilation structure does not use the frame member 3 in FIG. 1 described above and is composed only of the ventilation member 82. The fixing portion 83 is connected to the inner end portion of the top plate portion 84 and extends vertically downward. Also, there is no mounting portion, and the inclined portion 85 is connected to the inner end portion of the bottom plate portion 86. When attaching the ventilation member 82 to the lower part of the coping, the ventilation member 82 is lowered from above and installed so that the fixing portion 83 is inserted between the outer wall base material 90 and the body edge 91. Then, the upper part of the body edge 91 is attached to the outer wall base material 90, and the fixing portion 83 of the ventilation member 82 is fixed to the outer wall base material 90 with a plurality of nails 93 between the body edges 91. In this way, the ventilation member 82 is attached only to the side surface side of the base housing 40.

[0071] In addition, in the above embodiment, the bent portion is formed so as to extend obliquely downward, but if it is formed so as to bend outward, it does not have to extend downward. For example, it may extend in the horizontal direction.

[0072] Also, in the above embodiment, the structure of the lower part of the coping is specified, but as long as it is the part between the outer wall base material and the outer wall material and the coping installed above them, the lower part of the coping may have other structures.

[0073] Furthermore, in the above embodiment, an opening with a specific shape is formed in the side plate portion, but as long as the shape can ensure the ventilation function of the ventilation member, the opening may have other shapes.

[0074] Furthermore, in the above embodiment, the ventilation member is made of a steel plate, but it may be made of other materials.

[0075] Furthermore, in the above-described embodiment, the ventilation member was used in a specific lintel lower portion, but the ventilation member can also be used in the ventilation structures of other locations such as the wife side, eaves side, under the eaves, ventilation building, etc.

[0076] Furthermore, in the above-described embodiment, the angle formed by the inclined portion and the bent portion is set to 100 degrees, but it does not have to be 100 degrees. An angle larger than 100 degrees may be used, or an acute angle may be used. An angle of 90 degrees to 100 degrees is preferable. By configuring in this way, part of the rainwater that has entered from the opening and the rainwater that has collided with the inclined portion are efficiently shielded, so the reliability of the waterproof function is further improved.

[0077] Furthermore, in the above-described embodiment, the bent portion is formed so as to extend on a virtual plane including the upper end of the inclined portion and the upper end of the opening, but it does not have to be on the virtual plane. For example, it may be formed so as to extend above the virtual plane. By configuring in this way, for part of the linear rainwater that has entered from the opening and has not collided with the inclined portion, it is also efficiently shielded by the bent portion, so the reliability of the waterproof function is further improved.

[0078] Furthermore, in the above-described embodiment, the bent portion has a specific length, but as long as the length does not completely block the ventilation path, other lengths may be used.

[0079] Furthermore, in the above-described embodiment, the bent portion is connected to the upper end of the inclined portion, but for example, a bent portion made of a different material may be installed.

[0080] Furthermore, in the above-described embodiment, the main body portion has a ventilation path formed in a specific shape, but other shaped ventilation paths such as being further meandered or serpentined may be formed. Also, a ventilation member may be separately installed inside the main body portion.

Explanation of Reference Numerals

[0081] 2... Ventilation member 5... Ventilation path 10... Main body portion 11... Side plate portion 12… Ceiling part 13… Floor part 14… Fixing part 15… Mounting part 17… Opening 20… Barrier part 21… Inclined part 22… Bending part 23… Virtual plane 40… Base body 41… Ventilation space 72… Ventilation member 82… Ventilation member D1… Vertical distance D2… Horizontal distance In addition, the same reference numerals in each figure indicate the same or corresponding parts.

Claims

1. A ventilation member attached to a base body having a ventilation space inside, which has a ventilation passage that can communicate with the ventilation space inside, and a main body portion provided with an opening for communicating the ventilation passage with the outside, and a barrier portion provided inside the main body portion for colliding with rainwater entering from the opening, wherein the barrier portion includes an inclined portion extending obliquely upward outward, and a bent portion connected to the upper end of the inclined portion and bent outward. The ventilation member.

2. The bent portion extends obliquely downward outward. The ventilation member according to Claim 1.

3. The main body portion extends in the vertical direction, and a side plate portion having a plurality of the openings formed below at a predetermined interval in the longitudinal direction, a top plate portion extending inward from the upper end portion of the side plate portion, and a bottom plate portion extending inward from the lower end portion of the side plate portion, wherein the bent portion extends in the direction of the side plate portion, leaving a horizontal distance from its tip to the side plate portion. The ventilation member according to Claim 1 or Claim 2.

4. The angle formed by the inclined portion and the bent portion is set to 90 degrees to 100 degrees. The ventilation member according to Claim 3.

5. The bent portion extends on or above a virtual plane including the upper end of the inclined portion and the upper end of the opening. The ventilation member according to Claim 3.

6. The bent portion extends such that the horizontal distance from its tip to the side plate portion is the same as or greater than the vertical distance from the upper end of the inclined portion to the top plate portion. The ventilation member according to Claim 3.

7. The main body portion further includes a fixing portion extending inward from the inner side end portion of the top plate portion and fixed to the upper surface of the base body, and a mounting portion hanging down from the inner side end portion of the bottom plate portion and fixed to the side surface of the base body. The ventilation member according to Claim 3.

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