Intrusion prevention member

Abstract

To enable an intrusion prevention member to be installed even after exterior materials are installed or when renovating an existing building.SOLUTION: An intrusion prevention member 30 is disposed for preventing small animals from entering a ventilation layer 110 formed inside a siding 105 above a rainwater guide plate portion 12 of a water drainage member 1, between the rainwater guide plate portion 12 and a lower ventilation port 111 of the ventilation layer 110. The intrusion prevention member 30 comprises: an upper plate portion 31 with multiple ventilation holes; an attachment plate portion 32 that extends bending downward from the rear end of the upper plate portion 31; and a lower plate portion 33 that extends bending forward from the lower end of the attachment plate portion 32.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an intrusion prevention member for preventing the intrusion of small animals such as mice and bats into an inner ventilation layer of an exterior material through a lower ventilation hole in the ventilation layer in an exterior wall ventilation method, and in particular to an intrusion prevention member for retrofitting or remodeling that can be attached to a building to which an exterior material has been applied. [Background technology]

[0002] Conventionally, there has been known an exterior wall ventilation method in which an air layer is provided inside an exterior wall (exterior material, siding) including an overhang. The lower air opening of this air layer is provided with an intrusion prevention member to prevent small animals such as mice and bats from invading the air layer. The intrusion prevention member is attached when attaching the water drainage member to the foundation or cross member.

[0003] Patent Document 1 also describes a drainage material for ventilation construction that has a mouse-proof part and an insect-proof part as intrusion prevention members. In this drainage material, the intrusion prevention members are integrated with the drainage material body (drainage material), and the mouse-proof part and the insect-proof part are also attached when the drainage material body is attached to the base. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 3895576 Summary of the Invention [Problem to be solved by the invention]

[0005] Many existing buildings that use the above-mentioned exterior wall ventilation method do not have intrusion prevention members attached to the lower ventilation openings of the ventilation layer. This can lead to mice and bats invading the ventilation layer. However, the conventional intrusion prevention members used in the exterior wall ventilation method are attached to the foundation before the exterior material is installed, and are not used during renovation of existing buildings after the exterior material has been installed.

[0006] Therefore, an object of the present invention is to provide an intrusion prevention member for retrofitting or renovation that can be attached after exterior materials have been installed or when renovating an existing building. [Means for solving the problem]

[0007] In a first aspect, the intrusion prevention member of the present invention is an intrusion prevention member that is arranged and attached between the rainwater guide part of a drainage member or overhanging member and the lower air opening of the ventilation layer in order to prevent small animals from intruding into the ventilation layer formed inside the exterior material above the rainwater guide part, and has an upper plate part in which a plurality of ventilation holes are formed, and an attachment plate part that bends and extends downward from the rear end of the upper plate part.

[0008] In a second aspect, the intrusion prevention member of the present invention is an intrusion prevention member that is arranged and attached between the rainwater guide part of a drainage member or overhang member and the lower air opening of the ventilation layer formed inside the exterior material above the rainwater guide part in order to prevent small animals from intruding into the ventilation layer, and has an upper plate part in which a plurality of ventilation holes are formed, a mounting plate part that extends and bends downward from the rear end of the upper plate part, and a lower plate part that extends and bends forward from the lower end of the mounting plate part.

[0009] According to this, by attaching the mounting plate to a foundation or a cross member, it becomes possible to cover the lower vent with the upper plate. Therefore, it becomes possible to attach the intrusion prevention member even before the exterior material is installed, after the exterior material is installed, or during remodeling. Therefore, it becomes possible to attach the intrusion prevention member after the exterior material is installed or during remodeling of an existing building, without the intrusion prevention member for preventing small animals from invading.

[0010] In the present invention, it is preferable that a plurality of slits are formed along the bending line between the mounting plate and the lower plate, which makes it possible to easily bend the lower plate relative to the mounting plate and also to easily adjust the interior angle between the mounting plate and the lower plate.

[0011] In the present invention, it is preferable that the interior angle between the mounting plate and the lower plate is an obtuse angle. This makes it easier for the lower plate and the rainwater guide to come into contact with each other when an intrusion prevention member is placed between the rainwater guide and the lower vent, making it possible to closely contact the upper plate with the lower vent. It also makes it possible to flexibly adapt to the size of the gap between the rainwater guide and the lower vent.

[0012] In the present invention, it is preferable that the intrusion prevention member is made of a single metal plate and further includes a first folded plate portion folded back inward from the front end of the upper plate portion to overlap the upper plate portion. This forms an R portion by folding back when forming the first folded plate portion at the front end of the upper plate portion. This makes it possible to prevent injury caused by a user touching the front end of the upper plate portion.

[0013] In the present invention, it is preferable that the intrusion prevention member is made of a single metal plate and further has a second folded plate portion folded inward from the front end of the lower plate portion to overlap the lower plate portion. This forms an R portion by folding when forming the second folded plate portion at the front end of the lower plate portion. This makes it possible to prevent injury caused by a user touching the front end of the lower plate portion. In addition, it is possible to make the second folded plate portion less visible from below. Effect of the Invention

[0014] According to the intrusion prevention member of the present invention, by attaching the mounting plate portion to a foundation, a cross member, or the like, it becomes possible to cover the lower air vent with the upper plate portion. Therefore, it is possible to attach the intrusion prevention member even before the exterior material is installed, after the exterior material is installed, or during remodeling. Therefore, it is possible to attach the intrusion prevention member after the exterior material is installed or during remodeling of an existing building, without attaching an intrusion prevention member to prevent small animals from invading. [Brief description of the drawings]

[0015] [Figure 1] 1 is a schematic cross-sectional view showing an intrusion prevention member according to one embodiment of the present invention attached to a building framework. [Diagram 2] 2 is a cross-sectional view of the intrusion prevention member shown in FIG. 1. [Diagram 3] 2 is a rear view of the intrusion prevention member shown in FIG. 1. [Figure 4] 2 is a top view of the intrusion prevention member shown in FIG. 1. FIG. [Diagram 5] FIG. 11 is a cross-sectional view of an intrusion-preventing member according to a first modified example of the present invention. [Figure 6] FIG. 11 is a cross-sectional view of an intrusion-preventing member according to a second modified example of the present invention. [Figure 7] 1 is a schematic cross-sectional view showing an intrusion prevention member according to one embodiment of the present invention attached to an overhanging portion of a building structure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] An intrusion prevention member 30 according to one embodiment of the present invention will be described below with reference to Figs. 1 to 4. Fig. 1 shows an intrusion prevention member according to one embodiment of the present invention attached to a base, which is part of a building skeleton. A building skeleton 100 in this embodiment has a foundation 101, a base packing 102, a base 103, vertical furring strips 104, siding (exterior material) 105, a drainage member 1, an intrusion prevention member 30, etc.

[0017] Foundation 101 is formed by rising upward from the ground and extends long in direction A perpendicular to the paper surface in FIG. 1. Decorative mortar 101a is formed on the outdoor side of foundation 101. Foundation packing 102 is formed long along direction A and installed on foundation 101. Foundation packing 102 also has a plurality of ventilation holes (not shown) formed therein to communicate between the outdoor side and the indoor side.

[0018] The base 103 is also formed long and aligned along direction A, and is installed on the foundation packing 102. A plurality of drainage members 1 for preventing the infiltration of rainwater and the like are attached to an outdoor side surface 103a of the base 103, lined up along direction A. Each drainage member 1 is attached to the base 103 with a bottom plate portion 14 (described later) abutting against the foundation 101. In addition, a moisture-permeable waterproof sheet 106 is arranged between the base 103 and the vertical furring strips 104.

[0019] The vertical furring strips 104 are disposed between the base 103 and the siding 105, and extend in the up-down direction. A plurality of the vertical furring strips 104 are disposed at a distance from each other along direction A. The siding 105 is disposed outside the vertical furring strips 104. A ventilation layer 110 is formed between the siding 105 and the base 103 and between the plurality of vertical furring strips 104. The ventilation layer 110 allows outdoor air to pass between the siding 105 and the base 103.

[0020] The draining member 1 is manufactured by bending a single steel plate (metal plate). The steel plate constituting the draining member 1 may be a stainless steel plate, a Galtite (registered trademark) steel plate, a hot-dip 55% aluminum-zinc alloy plated steel plate, or the like. The steel plate is punched out from a single steel plate and the unbent steel plate is then bent to manufacture the draining member 1 as shown in FIG. 1. The draining member 1 may be made of aluminum.

[0021] As shown in Fig. 1, the drainage member 1 has a mounting plate portion 11, a rainwater guide plate portion 12, a front hanging plate portion 13, and a bottom plate portion 14, and is formed long in the direction A. The drainage member 1 will be described below with its outdoor side as the front and its indoor side as the rear. The direction A is a horizontal direction, which is a left-right direction perpendicular to the front-rear direction B.

[0022] The mounting plate portion 11 is formed in a vertical plane along the up-down direction C. The mounting plate portion 11 is attached to the base 103 with a nail or the like in a state where the upper end of the mounting plate portion 11 is aligned with the line drawn on the side surface 103a of the base 103 (see FIG. 1). The rainwater guide plate portion (rainwater guide portion) 12 extends from the lower end of the mounting plate portion 2 at an incline downward toward the front, and is disposed protruding from the siding 105 toward the outdoor side. This allows rainwater that flows down along the surface of the siding 105 and falls onto the rainwater guide plate portion 12 to be guided toward the front hanging plate portion 13. The front hanging plate portion 13 extends vertically downward from the front end of the rainwater guide plate portion 12. The bottom plate portion 14 extends upward from the lower portion of the front hanging plate portion 4 at one end and then extends rearward. In addition, a folded portion 15 folded back forward is formed at the rear end portion of the bottom plate portion 14.

[0023] The intrusion prevention member 30 in this embodiment prevents small animals from invading the ventilation layer 110 formed above the rainwater guide plate portion 12 of the drainage member 1 and inside the siding 105. The intrusion prevention member 30 is disposed and attached between the rainwater guide plate portion 12 and the lower ventilation hole 111 of the ventilation layer 110. The intrusion prevention member 30 is manufactured by bending a single steel plate (metal plate). As with the drainage member 1 described above, the steel plate constituting the intrusion prevention member 30 may be a stainless steel plate, a Galtite (registered trademark) steel plate, a hot-dip 55% aluminum-zinc alloy plated steel plate, or the like. Then, the steel plate punched out from a single steel plate is folded before being folded to manufacture the intrusion prevention member 30 as shown in FIG. 1.

[0024] 2 to 4, the intrusion prevention member 30 has an upper plate portion 31, an attachment plate portion 32, and a lower plate portion 33, and has a substantially C-shaped cross section (including a substantially U-shaped cross section and a substantially V-shaped cross section). The upper plate portion 31 is a horizontal plate-like portion extending in the front-rear direction B and the left-right direction A. The upper plate portion 31 extends elongatedly in the left-right direction A, and covers the lower ventilation opening 111 as shown in FIG. 1. In other words, the upper plate portion 31 is formed to be longer than the length of the lower ventilation opening 111 in the front-rear direction B.

[0025] As shown in Figs. 2 and 4, the upper plate portion 31 has a plurality of ventilation holes 31a penetrating in the thickness direction. In this embodiment, the ventilation holes 31a are circular with a diameter of 3 mm, but the size and shape of the ventilation holes 31a can be changed as appropriate. For example, when the ventilation holes 31a are circular, the diameter is preferably about 1 to 15 mm, and when the diameter is 3 mm or less, it is effective in preventing the intrusion of not only small animals but also insects. The number and opening area of ​​the ventilation holes 31a may be set according to the designed ventilation amount required to ventilate the outside air into the ventilation layer 110.

[0026] As shown in FIG. 2, the intrusion prevention member 30 has a first folded plate portion 35 that is folded back from the front end of the upper plate portion 31 to the inside (between the upper plate portion 31 and the lower plate portion 33) and overlaps with the upper plate portion 31. The first folded plate portion 35 is disposed below the upper plate portion 31. The first folded plate portion 35 is also disposed so as to vertically overlap with a portion of the upper plate portion 31 from the front end to the approximate center in the front-rear direction B. This forms an R portion by folding back when forming the first folded plate portion 35 at the front end of the upper plate portion 31. This makes it possible to prevent injury caused by the user coming into contact with the front end of the upper plate portion 31. In addition, since the first folded plate portion 35 is disposed between the upper plate portion 31 and the lower plate portion 33, it is possible to prevent the tip of the first folded plate portion 35 from getting caught.

[0027] As shown in FIG. 2, the mounting plate portion 32 bends and extends downward from the rear end of the upper plate portion 31. As shown in FIG. 2 and FIG. 3, the mounting plate portion 32 has a plurality of mounting holes 32a penetrating in the thickness direction. The plurality of mounting holes 32a are arranged spaced apart from one another in the left-right direction A. The mounting holes 32a are holes for passing screws or the like. The mounting plate portion 32 (intrusion prevention member 30) is fixed to the base 103 by passing a screw through the mounting plate portion 11 of the drainage member 1 through the mounting hole 32a and screwing it into the base 103. The mounting hole 32a in this embodiment is a circle with a diameter of 4 mm, but the size and shape may be changed as appropriate.

[0028] As shown in FIG. 2, the lower plate portion 33 bends forward and extends from the lower end of the mounting plate portion 32. The lower plate portion 33 is inclined downward from the lower end of the mounting plate portion 32 so that the interior angle θ between the lower plate portion 33 and the mounting plate portion 32 is an obtuse angle. This makes it difficult for a gap to occur between the lower plate portion 33 and the rainwater guide plate portion 12 as shown in FIG. 1. In other words, when the intrusion prevention member 30 is inserted between the lower air vent 111 and the rainwater guide plate portion 12, the upper plate portion 31 is easily brought into contact with the lower end of the siding 105 due to the contact between the lower plate portion 33 and the rainwater guide plate portion 12. For this reason, the upper plate portion 31 can cover the lower air vent 111 without any gaps (i.e., the upper plate portion 31 can be brought into close contact with the lower air vent 111), and it is possible to prevent small animals and the like from invading between the upper plate portion 31 and the siding 105. If the interior angle θ were 90 degrees or less, a gap would easily occur between the lower plate portion 33 and the rainwater guide plate portion 12, and the user would need to fix the mounting plate portion 32 to the base 103 while abutting the upper plate portion 31 against the lower end of the siding 105. If the interior angle θ is an obtuse angle in this way, it becomes possible to flexibly adapt to the size of the gap between the rainwater guide plate portion 12 and the lower air vent 111.

[0029] Furthermore, the lower plate portion 33 has a shorter length in the front-rear direction B than the upper plate portion 31. In other words, the front-rear width of the lower plate portion 33 is smaller than the front-rear width of the upper plate portion 31. This makes it difficult to visually confirm the rainwater guide plate portion 12 of the drainage member 1. In other words, the intrusion prevention member 30 is not noticeable.

[0030] As shown in Fig. 3, the intrusion prevention member 30 has a plurality of long holes 34 formed along a bending line L between the mounting plate portion 32 and the lower plate portion 33. Each long hole 34 is a slit for easily bending the lower plate portion 33 relative to the mounting plate portion 32, and extends long in the left-right direction A. The plurality of long holes 34 are also arranged spaced apart from one another along the left-right direction A. By having such a plurality of long holes 34, it becomes possible to easily bend the lower plate portion 33 relative to the mounting plate portion 32. It also becomes possible to easily adjust the interior angle θ between the mounting plate portion 32 and the lower plate portion 33.

[0031] As shown in FIG. 2, the intrusion prevention member 30 has a second folded plate portion 36 that is folded back from the front end of the lower plate portion 33 to the inside (between the upper plate portion 31 and the lower plate portion 33) and overlaps with the lower plate portion 33. The second folded plate portion 36 is disposed above the lower plate portion 33. The second folded plate portion 36 is also disposed so as to vertically overlap with a portion of the lower plate portion 33 from the front end to the portion near the rear end in the front-rear direction B. This forms an R portion by folding back when forming the second folded plate portion 36 at the front end of the lower plate portion 33. This makes it possible to prevent injury caused by the user coming into contact with the front end of the lower plate portion 33. In addition, since the second folded plate portion 36 is folded back from the front end of the lower plate portion 33 to the inside, the second folded plate portion 36 can be made difficult to see from below. Furthermore, since the second folded plate portion 36 is disposed between the upper plate portion 31 and the lower plate portion 33, the tip end of the second folded plate portion 36 can be prevented from getting caught.

[0032] As described above, according to the intrusion prevention member 30 of this embodiment, by attaching the mounting plate portion 32 to the base 103, it is possible to cover the lower air vent 111 with the upper plate portion 31. Therefore, it is possible to attach the intrusion prevention member 30 even before the siding 105 is installed, after the siding 105 is installed, or during remodeling. Therefore, it is possible to attach the intrusion prevention member 30, which prevents small animals from invading, after the siding 105 is installed, or during remodeling of an existing building, without attaching the intrusion prevention member 30.

[0033] Moreover, the intrusion prevention member 30 is composed of plate-shaped portions 31, 32, and 33. Therefore, even if some unevenness occurs at the connection portions between the drainage members 1, the intrusion prevention member 30 can be deformed to conform to the unevenness. Furthermore, the multiple intrusion prevention members 30 can be continuously arranged by partially overlapping each other in the left-right direction A. In other words, the intrusion prevention members 30 can be continuously arranged without creating a large gap between two adjacent intrusion prevention members 30.

[0034] In the above-described embodiment, the first folded plate portion 35 and the second folded plate portion 36 are folded back to the inside of the intrusion prevention member 30, but in the first modified example, the first folded plate portion 235 and the second folded plate portion 236 may be folded back to the outside of the intrusion prevention member 230. As shown in Fig. 5, the intrusion prevention member 230 in this modified example has the above-described upper plate portion 31, mounting plate portion 32, and lower plate portion 33. Note that the same components as those in the above-described embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0035] 5, the first folded plate portion 235 is folded back from the front end of the upper plate portion 31 outward (the side opposite to the space between the upper plate portion 31 and the lower plate portion 33) to overlap with the upper plate portion 31. The first folded plate portion 235 is disposed above the upper plate portion 31. The first folded plate portion 235 is also disposed so as to vertically overlap with a portion from the front end to approximately the center of the upper plate portion 31 in the front-rear direction B. This makes it possible to obtain the same effects as the above-described embodiment.

[0036] 5, the second folded plate portion 236 is folded back outward from the front end of the lower plate portion 33 to overlap with the lower plate portion 33. The second folded plate portion 236 is disposed below the lower plate portion 33. The second folded plate portion 236 is disposed so as to vertically overlap with a portion of the lower plate portion 33 from the front end to the portion near the rear end in the front-rear direction B. This makes it possible to obtain the same effect as the above-described embodiment.

[0037] In the case of the intrusion prevention member 230 in this first modified example, as in the above-described embodiment, it is possible to attach the intrusion prevention member 30 before the siding 105 is installed, after the siding 105 is installed, or during remodeling.

[0038] The above-described intrusion prevention members 30, 230 have the lower plate portion 33, but as a second modified example, the lower plate portion 33 may not be included. As shown in Fig. 6, an intrusion prevention member 330 in this modified example has the upper plate portion 31, the mounting plate portion 32, and the first folded plate portion 35 of the above-described intrusion prevention member 30, and has a substantially L-shaped cross section. Note that the same components as those in the above-described embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0039] In the case of the intrusion prevention member 330 in this second modified example, as in the above-described embodiment, it is possible to attach the intrusion prevention member 30 before the siding 105 is installed, after the siding 105 is installed, or during renovation.

[0040] In the above-described embodiment, the intrusion prevention member 30 is attached to the base 103. However, as a third modified example, as shown in FIG. 7, the intrusion prevention member 30 may be attached to an overhang portion 400 of the building skeleton.

[0041] 7, the building framework in this modification has a portion (a portion generally called an "overhang portion 400") that protrudes from siding 403. FIG. 7 shows an example of the overhang portion 400.

[0042] The overhang portion 400 shown in Fig. 7 has a horizontal member 401, vertical furring strips 402 arranged on the outside (outdoor side) of the horizontal member 401, siding 403 arranged on the outside of the vertical furring strips 402, and a soffit material 404 arranged below the horizontal member 401. A plurality of overhang members 420 for preventing the infiltration of rainwater and the like are attached to the outdoor side surface 401a of the horizontal member 401 in a line along the direction A. Each overhang member 420 is attached to the horizontal member 401 with a bottom plate portion 424 (described later) abutting against the underside of the soffit material 404. A moisture-permeable waterproof sheet 406 is arranged between the horizontal member 401 and the vertical furring strips 402.

[0043] The vertical furring strips 402 are disposed between the horizontal member 401 and the siding 403, and extend in the up-down direction. A plurality of the vertical furring strips 402 are disposed at a distance from each other along direction A. A ventilation layer 410 is formed between the siding 403 and the horizontal member 401 and between the plurality of vertical furring strips 402. The ventilation layer 410 allows outdoor air to pass between the siding 403 and the horizontal member 401.

[0044] The overhang member 420 is also manufactured by bending a single steel plate (metal plate) in the same manner as the above-described water drainage member 1. The steel plate constituting the overhang member 420 is the same as that in the above-described embodiment. Note that the overhang member 420 may be made of aluminum.

[0045] 7, the overhang member 420 has a mounting plate portion 421, a rainwater guide plate portion 422, a front hanging plate portion 423, and a bottom plate portion 424, and is formed long in the direction A. Moreover, the overhang member 420 will be described below with the outdoor side thereof referred to as the front and the indoor side thereof referred to as the rear.

[0046] As shown in FIG. 7, the mounting plate portion 421 is formed in a vertical plane shape along the up-down direction C. The mounting plate portion 421 is attached to the cross member 401 with a nail or the like in a state where the upper end of the mounting plate portion 421 is aligned with the markings drawn on the side surface 401a of the cross member 401. The rainwater guide plate portion (rainwater guide portion) 422 extends from the lower end of the mounting plate portion 421 at an incline downward toward the front, and is disposed protruding from the siding 403 toward the outdoor side. This allows rainwater that flows down along the surface of the siding 403 and falls onto the rainwater guide plate portion 422 to be guided toward the front hanging plate portion 423. The front hanging plate portion 423 extends vertically downward from the front end of the rainwater guide plate portion 422. The bottom plate portion 424 extends slightly upwardly from the lower end of the front hanging plate portion 423, and then extends horizontally backward. The bottom plate portion 424 also has a folded portion 425 folded forward at its rear end portion.

[0047] As shown in FIG. 7, the intrusion prevention member 30 is disposed and attached between the rainwater guide plate portion 422 of the overhang member 420 and the lower ventilation opening 411 of the ventilation layer 410. More specifically, the intrusion prevention member 30 is inserted between the lower ventilation opening 411 and the rainwater guide plate portion 422. At this time, the upper plate portion 31 abuts against the lower end of the siding 403 due to the abutment between the lower plate portion 33 and the rainwater guide plate portion 422. In other words, the upper plate portion 31 can cover the lower ventilation opening 111 without any gaps. Thereafter, as in the above-mentioned embodiment, the mounting plate portion 32 is fixed to the cross member 401 with a screw or the like through the mounting hole 32a. In this way, the intrusion prevention member 30 is attached to the overhang portion 400.

[0048] As described above, in this modified example, the intrusion prevention member 30 can be attached before constructing the siding 403 of the overhang portion 400, after constructing the siding 403, or during remodeling. Therefore, the intrusion prevention member 30 that prevents small animals from invading is not attached, and can be attached after the siding 403 is constructed or during remodeling of an existing building.

[0049] Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications are possible as long as they are within the scope of the claims. For example, the lower plate portion 33 of the intrusion prevention member 30 may extend forward from the lower end of the mounting plate portion 32. In other words, the interior angle θ may be 90 degrees. The lower plate portion 33 may extend from the lower end of the mounting plate portion 32 so that the interior angle θ is less than 90 degrees. The intrusion prevention member 30 may have a curved mounting plate portion 32 and a U-shaped cross section.

[0050] In addition, in the above-described embodiment and each modified example, the interior angle between the upper plate portion 31 and the mounting plate portion 32 is 90 degrees, but the interior angle may be an acute angle or an obtuse angle. The interior angle may be appropriately adjusted depending on the mounting position of the intrusion prevention member.

[0051] Furthermore, the lower plate portion 33 may be divided into multiple pieces along the left-right direction A. In other words, multiple lower plate portions having a length in the left-right direction A shorter than that of the lower plate portion 33 may be provided along the left-right direction A. This also makes it easier to bend the lower plate portion relative to the mounting plate portion 32. Furthermore, the length of the lower plate portion 33 in the left-right direction A may be shorter than that of the mounting plate portion 32. Furthermore, the lengths of the mounting plate portion 32 and the lower plate portion 33 in the left-right direction A may be shorter than that of the upper plate portion 31.

[0052] Also, only one long hole 34 may be formed as a slit. Also, the long hole 34 may not be formed. Instead of the long hole 34, a thin-walled portion that is thinner than other surrounding portions may be formed.

[0053] Also, the first folded plate portion 35, 235 may not be formed. Also, the first folded plate portion 35, 235 may overlap with a portion of the upper plate portion 31 from the front end to the vicinity of the rear end. Also, the second folded plate portion 36, 236 may not be formed. Also, the second folded plate portion 36, 236 may overlap with at least a portion of the lower plate portion 33 from the front end to the center.

[0054] The intrusion prevention member may be made of synthetic resin. The mounting plate 32 may be fixed to the base 103 or the cross member 401 with a nail or an adhesive such as double-sided tape. If the mounting plate 32 is made of metal, the mounting plate 32 may be fixed to the metal drainage member 1 or overhang member 420 with a magnet. Only one mounting hole 32a may be formed in the mounting plate 32. The mounting plate 32 may not have the mounting hole 32a formed therein, or a recess may be formed in place of the mounting hole 32a.

[0055] Furthermore, the length of the upper plate portion 31 in the front-rear direction B may be equal to or less than the length of the lower plate portion 33 in the front-rear direction B. [Explanation of symbols]

[0056] 1. Draining material 12,422 Rainwater guide board section (rainwater guide section) 105,403 Siding (exterior material) 110,410 Ventilation layer 111,411 Lower vent 30,230,330 Intrusion prevention material 31 Upper plate 31a Ventilation hole 32 Mounting plate 33 Lower plate part 34 Slit 35,235 First folded plate 36,236 Second folded plate 420 Overhanging Members θ Interior angle

Claims

1. An intrusion prevention member for preventing small animals from intruding into an air layer formed above a rainwater guide part of a drainage member or an overhang member and inside an exterior material, the intrusion prevention member being disposed and attached between the rainwater guide part and a lower air hole of the air layer, An intrusion prevention member comprising: an upper plate portion having a plurality of ventilation holes formed therein; and a mounting plate portion bent and extending downward from a rear end of the upper plate portion.

2. An intrusion prevention member for preventing small animals from intruding into an air layer formed above a rainwater guide part of a drainage member or an overhang member and inside an exterior material, the intrusion prevention member being disposed and attached between the rainwater guide part and a lower air hole of the air layer, An intrusion prevention member characterized by having an upper plate portion having a plurality of air holes formed therein, an attachment plate portion bending downward and extending from the rear end of the upper plate portion, and a lower plate portion bending forward and extending from the lower end of the attachment plate portion.

3. 3. The intrusion prevention member according to claim 2, wherein a plurality of slits are formed along a bending line between the mounting plate portion and the lower plate portion.

4. 4. The intrusion prevention member according to claim 2, wherein an interior angle between the mounting plate portion and the lower plate portion is an obtuse angle.

5. The intrusion prevention member is made of a single metal plate, 3. The intrusion prevention member according to claim 1, further comprising a first folded plate portion folded inwardly from a front end of the upper plate portion so as to overlap the upper plate portion.

6. The intrusion prevention member is made of a single metal plate, 3. The intrusion prevention member according to claim 2, further comprising a second folded plate portion folded inward from a front end of the lower plate portion to overlap the lower plate portion.

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