Throating member, fixing member, and detachable member

Abstract

To prevent a water-swelling material stored in a storage part from contracting in the right and left direction.SOLUTION: The throating material 10 includes an attachment part 11 attached to a building skeleton, an extension part 12 extending obliquely downward and forward from the attachment part 11, a front hanging part 13 extending downward from the front of the extension part 12, and a housing part 14 provided below the front hanging part 13 and behind the front hanging part 13 and capable of housing a water-swelling material 30. The throating material 10 further has a fixing member 90 for fixing both end parts in the right and left direction of the water swelling material 30 stored in the storage part 14.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a flashing material for buildings, a fixing member for fixing a water-expansive material to the flashing material, and a detachable member for attaching or housing a water-expansive material in a flashing material for flood prevention, or for replacing or exchanging a water-expansive material housed in a flashing material for flood prevention with a new one. [Background technology]

[0002] The applicant has proposed a water-repellent material for flood prevention, which has a water-expansion material (a water-expansion material whose volume expands by absorbing water) placed in the storage section of the water-repellent material, thereby preventing water from entering under the floor in the event of a flood (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2023-167052 Summary of the Invention [Problem to be solved by the invention]

[0004] In the flashing material described in Patent Document 1, the water-expansive material is placed in the storage space of the storage unit and is partially attached to the bottom wall that defines the storage space, but the left and right ends of the water-expansive material are not fixed to the storage unit. As a result, when the water-expansive material shrinks due to drying, its left and right length shortens, and relatively large gaps where no water-expansive material is present are likely to form at the longitudinal (left and right) ends of the flashing material. In this state where there is no water-expansive material at the ends of the flashing material, even if the water-expansive material expands during a flood, it may not be able to fill the gaps all the way to the ends of the flashing material, making it easier for water to seep through the gaps and into the floor below.

[0005] Therefore, the object of the present invention is to provide a water-repellent material, a fixing member, and a removable member for installation or replacement that can prevent the water-expanding material contained in the storage section from shrinking in the left-right direction. [Means for solving the problem]

[0006] The water-repellent material of the present invention comprises an attachment portion that is attached to the building frame, an extension portion that extends downward and forward from the attachment portion, a front flap portion that extends downward from the front of the extension portion, and a storage portion that is located below the extension portion and behind the front flap portion and is capable of storing a water-expansion material, and the water-expansion material is fixed in part or in whole and stored in the storage portion.

[0007] From another perspective, the water-repellent material of the present invention is a water-repellent material having an attachment portion that is attached to the building frame, an extension portion that extends from the attachment portion at an angle downward and forward, a front flap portion that extends downward from the front of the extension portion, and a storage portion that is located below the extension portion and behind the front flap portion and is capable of storing a water-expansion material, and has a fixing member that suppresses shrinkage in the left-right direction of the water-expansion material stored in the storage portion.

[0008] From another perspective, the water-repellent material of the present invention is a water-repellent material having an attachment portion that is attached to the building frame, an extension portion that extends from the attachment portion at a downward angle toward the front, a front flap portion that extends downward from the front of the extension portion, and a storage portion that is located below the extension portion and behind the front flap portion and is capable of storing a water-expansion material, and has a fixing member that clamps and fixes the end of the water-expansion material stored in the storage portion to the end of the storage portion in the left-right direction.

[0009] These flashing materials can prevent the water-expansive material housed in the housing from shrinking in the left-right direction. Therefore, when the water-expansive material expands in the event of a flood, it expands to fill gaps along the entire length (left-right direction) of the flashing material, preventing water from seeping under the floor, allowing the water-expansive material to function effectively.

[0010] In the present invention, it is preferable that the thickness of the end portion of the water-expandable material is greater in the left-right direction than the thickness of the center of the water-expandable material, so that even if expansion of the portion of the water-expandable material in the thickness direction that is clamped by the fixing member at the end portion is hindered, the entire thickness of the end portion of the water-expandable material can perform the blocking function.

[0011] The fixing member of the present invention is a fixing member for fixing a water-expansion material to a waterproofing material, which comprises an attachment portion that is attached to the building frame, an extension portion that extends from the attachment portion at an angle downward and forward, a front flap portion that extends downward from the front of the extension portion, and a storage portion that is located below the extension portion and behind the front flap portion and is capable of storing the water-expansion material, and is capable of suppressing shrinkage in the left-right direction of the water-expansion material stored in the storage portion.

[0012] The detachable member of the present invention is a detachable member that can be attached and detached to a water-repellent material for flood prevention, and has a bottom plate portion, a water-expanding material placed on the bottom plate portion, and a fixing member that suppresses shrinkage of the water-expanding material in the left-right direction. [Effects of the Invention]

[0013] The flashing material, fixing member, and detachable member of the present invention can prevent the water-expandable material housed in the housing from shrinking longitudinally (laterally). This reduces the change in the dimensions of the water-expandable material over time, and in the event of a flood, the water-expandable material expands to completely fill the interior of the flashing material, preventing water from seeping under the floor and allowing the water-expandable material to function effectively. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a schematic side view showing a state in which a water-repellent material according to one embodiment of the present invention is attached to a building frame. [Figure 2] 2 is a perspective view of the essential parts of the water dripping member shown in FIG. 1, seen obliquely from above and to the front right. [Figure 3] 2 is a perspective view of the essential parts of the water dripping member shown in FIG. 1, seen from the rear right diagonally below. FIG. [Figure 4] 2 is a perspective view of the main part of the water-repellent shown in FIG. 1, seen from the front right diagonally below. FIG. [Figure 5] FIG. 2 is a side view of the water-repellent material shown in FIG. [Figure 6] 6(a) is a side view of the main body portion shown in FIG. 5, and FIG. 6(b) is a side view of the detachable portion shown in FIG. [Figure 7] 6 is a perspective view of the detachable unit shown in FIG. 5 as seen obliquely from above and rear right. [Figure 8] 6 is an enlarged view of the main part of the detachable part shown in FIG. 5 as seen from behind. [Figure 9] 8 is an enlarged view of a main part showing a state in which a fixing member is removed from the detachable part shown in FIG. 7. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0015] A water flashing material 10 according to one embodiment of the present invention will be described below with reference to Figures 1 to 9. Figure 1 shows a state in which a water flashing material 10 according to one embodiment of the present invention is attached to a base, which is part of a building skeleton. The building skeleton 100 in this embodiment has a foundation 101, a foundation packing 102, a base 103, and the like that support a building (not shown).

[0016] Foundation 101 is formed to rise above the ground and extends longitudinally in direction A, perpendicular to the plane of the paper in FIG. 1 . Decorative mortar (not shown) is formed on the outdoor side of foundation 101. Foundation packing 102 is formed longitudinally along direction A and is installed on foundation 101. Foundation packing 102 also has a plurality of vent holes 102a formed therein to connect the outdoor side with the indoor side. The plurality of vent holes 102a are formed spaced apart from one another along direction A. Base 103 is also formed longitudinally along direction A and is installed on foundation packing 102. A water-repellent material 10 is attached to outdoor side 103a of base 103 to prevent the infiltration of rainwater and the like.

[0017] As shown in FIG. 1, the flashing material 10 in this embodiment is attached to a base 103 with a support part 19 (both of which will be described later) placed on a foundation 101 via a water-expansion material 41. The following description of the flashing material 10 will refer to the outdoor side as the front and the indoor side as the rear. Direction A is a horizontal direction that is perpendicular to the front-to-back direction B, and will therefore be referred to as the left-to-right direction A in the following description. The left-to-right direction A is the direction when viewed from the front. End caps (not shown) are attached to each end of the flashing material 10 in the left-to-right direction A. The end caps seal the openings at both ends of the flashing material 10 in the left-to-right direction A.

[0018] As shown in Figures 2 to 5, the flashing material 10 has an attachment portion 11, an extension portion 12, a front flap portion 13, a storage portion 14, a water-swelling material 30, and two fixing members 90. Note that while Figure 2 only shows the fixing member 90 located at the right end of the flashing material 10, a fixing member 90 is also located at the left end of the flashing material 10. Furthermore, the attachment portion 11, the extension portion 12, the front flap portion 13, the storage portion 14, and the water-swelling material 30 are all formed to be elongated in the left-right direction A. Furthermore, the attachment portion 11, the extension portion 12, the front flap portion 13, and the storage portion 14 that make up the flashing material 10 are made of metal such as aluminum, but may also be made of other materials such as synthetic resin.

[0019] The mounting portion 11 is a plate-like portion formed in a vertical plane along the up-down direction C. The mounting portion 11 is attached to the base 103 with a nail or the like, with its upper end aligned with a line drawn on the side surface 103a of the base 103. The extension portion 12 is a plate-like portion that extends obliquely downward (front-downward) from the lower portion of the mounting portion 11. This allows rainwater that falls onto the extension portion 12 from an exterior wall material (not shown) formed on the side surface 103a of the base 103 to be guided toward the front hanging portion 13 side.

[0020] As shown in Fig. 5, the front hanging portion 13 is a plate-like portion extending vertically downward from the front end of the extension portion 12. The water flashing material 10 in this embodiment has a main body portion 2, a detachable portion 3 that is detachable from the main body portion 2, and a support member 4. As shown in Fig. 6(a), the main body portion 2 has an attachment portion 11, the extension portion 12, the front hanging portion 13, a lower plate portion 21, an upper rear wall 16a, a lower rear wall 16b, a connecting portion 18, a support portion 19, a water-swelling material 41, and a water-stopping material 42. As shown in Fig. 6(b), the detachable portion (detachable member) 3 has an upper front wall 15a, a lower front wall 15b, a bottom wall 17, a water-swelling material 30, a water-stopping material 43, and two fixing members 90.

[0021] 5, the storage section 14 is provided below the extension section 12 and behind the front hanging section 13. The storage section 14 has an upper front wall 15a, a lower rear wall 16b, a bottom wall 17, a rear lower plate section 21b serving as an upper wall, and a storage space S surrounded by these walls 15a, 16b, 17, and 21b. These walls 15a, 16b, 17, and 21b are formed to extend over the entire length of the water dripping material 10 in the left-right direction A.

[0022] As shown in FIG. 6(a), the lower plate 21 of the main body 2 is disposed below the extension 12 and extends horizontally rearward from the front hanging portion 13. The lower plate 21 has a front lower plate 21a connected to the front hanging portion 13 and the connecting portion 18, and a rear lower plate 21b connected to the connecting portion 18 and the upper rear wall 16a. The connecting portion 18 is a plate-like portion formed in a vertical plane along the up-down direction C and extends the entire length of the flashing material 10 along the left-right direction A. The rear lower plate 21b forms the upper wall of the storage space S. The front lower plate 21a has a through-hole 21c that penetrates in the up-down direction C. The through-hole 21c extends the entire length of the flashing material 10 along the left-right direction A. A screw 74 (described later) of the support member 4 is passed through the through-hole 21c.

[0023] Two screw fastening portions 21d, 21e are formed on the upper surface of the rear lower plate portion 21b. The screw fastening portion 21d is located at a corner where the rear lower plate portion 21b and the connecting portion 18 are connected. The screw fastening portion 21e is located rearward of the screw fastening portion 21d. These screw fastening portions 21d, 21e are located apart from each other in the front-rear direction B. Each screw fastening portion 21d, 21e is formed by removing a portion of the arc portion of a hollow tube extending the entire length of the flashing material 10 in the left-right direction A, and has a generally C-shaped cross section. The screw fastening portions 21d, 21e have screw holes 21d1, 21e1 on the inner circumferential surface of the hollow tube. In other words, the screw holes 21d1, 21e1 are formed the entire length of the flashing material 10 in the left-right direction A. The screw fastening portions 21d, 21e are configured so that when a screw (not shown) is screwed into the screw holes 21d1, 21e1, the inner circumferential surface of the screw hole 21d1, 21e1 engages with the threaded portion of the screw, thereby fastening the screw. In other words, by screwing a screw into the screw hole 21d1, 21e1 with the end cap in place, the end cap can be fixed while being pressed against the flashing material 10.

[0024] Furthermore, eight downwardly protruding projections 21f are formed on the underside of the rear lower plate 21b. These projections 21f extend over the entire length of the water stripping material 10 in the left-right direction A. The upper rear wall 16a of the main body 2 is a plate-like portion that extends vertically upward from the rear end of the lower plate 21. The upper rear wall 16a connects the rear end of the extension portion 12 and the rear end of the lower plate 21.

[0025] As shown in Figures 5 and 6(b), the upper front wall 15a of the storage section 14 is part of the detachable section 3 and is formed in a vertical plane along the up-down direction C. The upper front wall 15a is a plate-like section that extends vertically upward from the upper surface of the bottom wall 17. The upper end of the upper front wall 15a is arranged spaced apart from the rear lower plate section 21b in the up-down direction C. This forms a ventilation section 14a at the front upper part of the storage section 14. The ventilation section 14a extends along the left-right direction A over the entire length of the water-repellent material 10.

[0026] As shown in FIG. 5, the lower rear wall 16b of the storage section 14 is disposed rearward of the upper front wall 15a and is formed in a vertical plane along the up-down direction C. The lower rear wall 16b is part of the main body 2 and is a plate-like portion extending vertically downward from the rear portion of the rear-lower plate portion 21b. As shown in FIG. 3, the lower rear wall 16b is formed with a plurality of ventilation holes 16c penetrating in the thickness direction (front-rear direction). The plurality of ventilation holes 16c are arranged side by side along the left-right direction A. In this embodiment, a plurality of ventilation holes 16c are formed, but only one ventilation hole 16c may be formed as long as the desired opening area can be ensured.

[0027] As shown in FIGS. 5 and 6(a), the support portion 19 is a part of the main body 2 and is a plate-like portion extending horizontally in the front-to-rear direction B from the lower end of the lower rear wall 16b. The support portion 19 also extends along the entire length of the flashing material 10 in the left-to-right direction A. The support portion 19 is positioned to protrude rearward beyond the lower rear wall 16b. When the flashing material 10 is attached to the base 103, the rear end of the support portion 19 abuts against the foundation gasket 102, forming a space between the lower rear wall 16b and the foundation gasket 102. This space reduces the likelihood of the ventilation hole 16c in the lower rear wall 16b being blocked by areas other than the ventilation hole 102a in the foundation gasket 102, and the ventilation hole 102a being blocked by areas other than the ventilation hole 16c in the lower rear wall 16b. This prevents a decrease in ventilation to the building skeleton 100.

[0028] A downwardly protruding protrusion 19a is formed on the underside of the front portion of the support part 19. The protrusion 19a is located slightly rearward from the front end of the support part 19. The protrusion 19a is also formed to extend over the entire length of the water-repellent material 10 in the left-right direction A.

[0029] The water-expanding material 41 is formed in a sheet shape and is attached to the entire underside of the portion of the support portion 19 rearward of the protrusion 19a. The water-expanding material 41 is made of the same material as the water-expanding material 30 described below. The water-stopping material 42 is also formed in a sheet shape and is attached to the rear surface of the upper rear wall 16a. The water-expanding material 41 may be made of a material other than the water-expanding material 30 (e.g., rubber, flexible resin, etc.) as long as it is capable of preventing water from entering between the support portion 19 and the foundation 101. The water-stopping material 42 may be made of the same material as the water-expanding material 30 or a different material (e.g., rubber, flexible resin, etc.) as long as it is capable of preventing water from entering between the mounting portion 11 and the base 103.

[0030] As shown in Figures 5 and 6(b), the bottom wall 17 of the storage section 14 is part of the detachable section 3 and has a bottom plate section 17a and an attachment plate section 17b. The bottom plate section 17a is a plate-like section that extends horizontally in the front-rear direction B and extends further forward than the upper front wall 15a. The attachment plate section 17b is a plate-like section that extends rearward from above the rear end section of the bottom plate section 17a. A waterproof material 43 is attached to the entire underside of the attachment plate section 17b. The waterproof material 43 is made of the same material as the waterproof material 42.

[0031] A fitting portion 17c that can fit into the front end of the support portion 19 is formed on the underside of the bottom wall 17. The fitting portion 17c is also formed to extend along the left-right direction A over the entire length of the water-repellent material 10.

[0032] The lower front wall 15b is a part of the detachable portion 3 and is formed in a vertical plane along the up-down direction C. The lower front wall 15b is disposed slightly rearward of the upper front wall 15a. The lower front wall 15b is a plate-like portion that extends vertically downward from the lower surface of the bottom wall 17.

[0033] As shown in Figure 5, the water-swelling material 30 is accommodated in the accommodation space S of the accommodation unit 14. More specifically, the water-swelling material 30 is disposed on the bottom wall 17 over the entire length of the accommodation unit 14 in the left-right direction A. The water-swelling material 30 may be disposed anywhere in the accommodation space S, but is preferably disposed in a position that does not block the ventilation portion 14a and is separated from the lower rear wall 16b. This prevents the water-swelling material 30 from blocking the ventilation portion 14a and the ventilation holes 16c when it has not absorbed water.

[0034] The water-swelling material 30 is a member made of a known material that expands in volume by absorbing water. In this embodiment, the water-swelling material 30 is made of highly water- and moisture-absorbent fibers made by fiberizing a polymer whose main component is sodium polyacrylate, but it may also be made of other materials.

[0035] 7 and 8 are explanatory diagrams of the detachable part 3 (detachable member). The detachable part 3 has a bottom plate part 17a, a water-swelling material 30, and a fixing member 90. As shown in FIG. 7, the water-swelling material 30 has a strip shape extending over the entire length of the flashing material 10 in the left-right direction A. The water-swelling material 30 also has a main body part 31 that is long in the left-right direction A, and four short parts 32 to 35 that are arranged at both ends of the main body part 31 in the left-right direction A. Because the four short parts 32 to 35 arranged at each end of the main body part 31 have the same configuration, only the four short parts 32 to 35 arranged at one end of the main body part 31 in the left-right direction A will be described.

[0036] The ends of the main body 31 are sandwiched between the fixing members 90 in the up-down direction C, resulting in two thin portions 31a at both ends and a thick portion 31b in the middle that is thicker in the up-down direction C than the thin portions 31a. In other words, the main body 31 had the same thickness in the left-right direction A before being fixed by the fixing members 90, but by being sandwiched between the fixing members 90, the thin portions 31a are formed at both ends and a thick portion 31b is formed between the two thin portions 31a at both ends. The thick portion 31b extends longitudinally in the left-right direction A and connects the two thin portions 31a.

[0037] The short portion 32 is a sheet-like member having a rectangular planar shape, and is disposed between an upper horizontal plate portion 91a (described later) and the thin portion 31a of the fixing member 90. In this embodiment, the short portion 32 is attached to the underside of the upper horizontal plate portion 91a (described later) of the fixing portion 91 of the fixing member 90, and in this state clamps and fixes the end of the main body portion 31.

[0038] As shown in Fig. 8, the three short portions 33 to 35 are sandwiched by a fixing member 90 at the end of the main body portion 31, and then stacked and attached onto a fixing portion 91 (described later) of the fixing member 90. These short portions 33 to 35 are also sheet-like members having a rectangular planar shape. The three short portions 33 to 35 are stacked in this order, with the short portion 33 having the shortest length in the left-right direction A and the short portion 35 having the longest length in the left-right direction A. All three short portions 33 to 35 have the same length in the front-to-rear direction B.

[0039] The three short portions 33 to 35 are arranged such that their outer ends in the left-right direction A are aligned in the up-down direction C with the outer end in the left-right direction A of the thin-walled portion 31a. The short portion 33 is arranged on the fixing portion 91, the short portion 34 is attached to the short portion 33, and the short portion 35 is attached to the short portion 34. By attaching the short portions 33 to 35 to the compressed both ends of the main body portion 31, the thickness of the water-expanding material 30 at both ends in the left-right direction A is made slightly larger than the thickness of the middle portion.

[0040] Furthermore, the thicknesses of the short portions 32 and 35 in the up-down direction C are approximately the same. The thicknesses of the short portions 33 and 34 in the up-down direction C are approximately the same. The thickness of the short portion 33 is greater than the thickness of the short portion 32. In the up-down direction C, the total thickness of the thin portion 31a compressed by the fixing member 90 and the four short portions 32 to 35 stacked thereon, including the thickness of the upper horizontal plate portion 91a (described below) of the fixing member 90, is greater than the thickness of the thick portion 31b of the main body portion 31. In other words, when the water-expanding material 30 is fixed to the storage portion 14 by the fixing member 90 and has not absorbed water, the thickness of the ends of the water-expanding material 30 in the left-right direction A is greater than the thickness of the center (thick portion 31b) of the water-expanding material 30. The thickness of the water-expandable material added to the fixing member 90 varies depending on conditions such as the type and combination of water-expandable material and the size of the fixing member. In this embodiment, however, a preferred example is provided in which the thickness of the ends of the water-expandable material 30 in the left-right direction A is greater than the thickness of the center (thick portion 31b) of the water-expandable material 30, even after subtracting the thickness of the upper horizontal plate portion 91a.

[0041] Furthermore, when the water-expandable material 30 has not absorbed water, an air passage that connects the ventilation portion 14a and the ventilation hole 16c is secured between the water-expandable material 30 and the rear lower plate 21b in the storage space S, as shown by the solid line in FIG. 5 . Meanwhile, if water enters the storage space S through the ventilation portion 14a due to underfloor flooding or the like, the water-expandable material 30 absorbs water. When the water-expandable material 30 has absorbed water, it expands to fill the entire storage space S, as shown by the two-dot chain line in FIG. 5 . This blocks the air passage in the storage space S with the expanded water-expandable material 30. This blocks communication between the ventilation portion 14a and the ventilation hole 16c. Furthermore, because multiple protrusions 21f are formed on the underside of the rear lower plate 21b, the multiple protrusions 21f dig into the upper portion of the expanded water-expandable material 30, as shown in FIG. 5 . Therefore, water can be effectively prevented from entering between the lower surface of the rear lower plate portion 21b and the water-expanding material 30.

[0042] Two fixing members 90 are arranged at both ends of the flashing material 10 in the left-right direction A. While FIG. 2 shows one fixing member 90 attached to the right end of the flashing material 10, a fixing member 90 is also attached to the left end of the flashing material 10. The two fixing members 90 fix both ends of the water-expanding material 30 housed in the housing portion 14 in the left-right direction A to the bottom wall 17. As shown in FIGS. 5 and 9, each fixing member 90 has a fixing portion 91 and a screw 92.

[0043] As shown in FIGS. 5 and 9 , the fixing portion 91 includes an upper horizontal plate portion 91a, a lower horizontal plate portion 91b, and a vertical plate portion 91c connecting the horizontal portions 91a and 91b, and has a U-shape. The upper horizontal plate portion 91a has a longer length in the left-right direction A and a longer length in the front-rear direction B than the lower horizontal plate portion 91b. In other words, the upper horizontal plate portion 91a has a larger planar area than the lower horizontal plate portion 91b. The length of the upper horizontal plate portion 91a in the front-rear direction B is approximately the same as the length of the water-expanding material 30 in the front-rear direction B before expansion. The lower horizontal plate portion 91b and the vertical plate portion 91c have the same length in the front-rear direction B. The vertical plate portion 91c is positioned outside the upper horizontal plate portion 91a and the lower horizontal plate portion 91b in the left-right direction A. As shown in FIG. 5 , a hole 91d is formed in the lower horizontal plate portion 91b, penetrating in the up-down direction C. An internal thread corresponding to the external thread of the screw 92 is formed on the inner peripheral surface of the hole 91d.

[0044] FIG. 9 is a schematic diagram showing the state in which the fixing member 90 has been removed from one end of the detachable portion 3 (detachable member). When fixing the water-expanding material 30 with the fixing member 90, first, as shown in FIG. 9 , the main body 31 of the water-expanding material 30 is placed on the bottom wall 17. Then, the left-right end of the main body 31 is pressed down, and the pressed end is sandwiched between the bottom wall 17 and an upper horizontal plate 91a of the fixing member 90, the underside of which has the short portion 32 affixed. Next, the screw 92 is inserted into the hole 91d and tightened until the tip of the screw 92 abuts against the underside of the bottom wall 17. In this state, by further tightening the screw 92 by a predetermined amount, the fixing portion 91 moves downward, and the upper horizontal plate 91a approaches the bottom wall 17. In this way, the left-right end of the main body 31 is sandwiched and fixed between the bottom wall 17 and the upper horizontal plate 91a to which the short portion 32 is affixed, forming the thin-walled portion 31a. The fixing member 90 clamps and fixes the body 31 at both ends in the left-right direction A. Then, the short sections 33 to 35 are attached to the upper horizontal plate 91a of the fixing member 90 to make up for the reduced expansion amount due to the compression of the thickness. In this way, the water-expanding material 30 is fixed to the storage section 14.

[0045] The support members 4 are members for supporting the detachable portion 3 on the main body 2 and are arranged at a predetermined pitch in the left-right direction A of the flashing material 10. For example, in the case of a 3-m-long flashing material 10, the support members 4 are attached at intervals of 600 to 700 mm. As shown in FIG. 5 , the support members 4 include a first member 71, a second member 72, a third member 73, and two screws 74 and 75. The first member 71 is a flat plate arranged between the extension portion 12 and the front lower plate 21a. The length of the first member 71 in the front-to-rear direction B is longer than the width of the through-hole 21c in the front-to-rear direction B and shorter than the distance between the front hanging portion 13 and the connecting portion 18. Therefore, both ends of the first member 71 in the front-to-rear direction B are supported by the front lower plate 21a. A hole 71a is formed in the first member 71 at a position facing the through-hole 21c in the up-down direction C. An internal thread corresponding to the external thread of the screw 74 is formed on the inner peripheral surface of the hole 71a.

[0046] The second member 72 includes a horizontal plate portion 72a, an inclined plate portion 72b, and a vertical plate portion 72c connecting the plate portions 72a and 72b, and has a generally inverted U-shape. The horizontal plate portion 72a has a hole 72a1 through which a screw 74 can be inserted. The inclined plate portion 72b has a hole 72b1. The inner surface of the hole 72b1 has a female thread corresponding to the male thread of the screw 75. The first member 71 and the second member 72 are connected by aligning the hole 71a and the hole 72a1 so that the hole 71a faces the hole 72a1 and fastening the screw 74 inserted into the hole 72a1 into the hole 71a. Furthermore, loosening the screw 74 increases the separation distance between the first member 71 and the second member 72 in the vertical direction C. This allows the support member 4 to be moved in the left-right direction A, enabling the flashing material 10 to be moved to an appropriate position.

[0047] The third member 73 includes an oblique plate portion 73a, a horizontal plate portion 73b, and an oblique plate portion 73c connecting these plate portions 73a and 73b, and has a generally Z-shape. The oblique plate portion 73a has a hole 73a1 through which a screw 75 can be inserted. The second member 72 and the third member 73 are connected by aligning the hole 72b1 and the hole 73a1 so that the hole 72b1 faces the hole 73a1, and then fastening the screw 75 inserted into the hole 73a1 into the hole 72b1.

[0048] Here, the operation of attaching and detaching the detachable part 3 to and from the main body part 2 will be described. When removing the detachable part 3 from the main body part 2, first remove the screw 75 shown in FIG. 5 to remove the third member 73 from the second member 72. Then, move the detachable part 3 forward to remove the front end of the support part 19 from the fitting part 17c. Thereafter, move the detachable part 3 diagonally downward and forward to remove it from the main body part 2.

[0049] By configuring the detachable part 3 to be detachable from the main body 2 in this way, it becomes possible to replace the water-swelling material 30 stored in the storage part 14. At this time, the water-swelling material 30 may be replaced with a new one together with the detachable part 3, or only the water-swelling material 30 may be replaced by removing the two fixing members 90 from the detachable part 3 and taking out the water-swelling material 30, and then fixing the new water-swelling material 30 to the detachable part 3. In this embodiment, the detachable part 3 having the bottom wall 17 (bottom plate part 17a), the water-swelling material 30, and the fixing members 90 corresponds to the detachable member.

[0050] When attaching the detachable part 3 to the main body 2, the procedure is reversed from the removal procedure described above. More specifically, the fitting part 17c of the detachable part 3, to which the water-expanding material 30 is fixed by the two fixing members 90, is fitted into the front end of the support part 19 of the main body 2. Then, while the front part of the bottom wall 17 is supported from below by the horizontal plate part 73b of the third member 73, it is fixed to the third member 73 and the second member 72 with the screws 75. This completes the attachment and detachment operation of the detachable part 3 to the main body 2.

[0051] When the detachable part 3 is attached to the main body 2, the front end of the bottom wall 17 is positioned downward and away from the lower end of the front hanging part 13. In other words, the water dripping material 10 has a ventilation part 20 between the lower end of the front hanging part 13 and the front end of the bottom wall 17, as shown in Figures 1 to 5. This allows air from the outside to flow through the ventilation part 20 to the ventilation part 14a.

[0052] Next, a method for attaching the flashing material 10 to the building skeleton 100 will be described below. The flashing material 10 containing the water-expansive material 30 before absorbing water is prepared. Then, as shown in FIG. 1 , the mounting portion 11 of the flashing material 10 is attached to the side surface 103a of the base 103 of the building skeleton 100 with a nail or the like. At this time, the flashing material 10 is attached to the base 103 with the upper end of the mounting portion 11 aligned with the line drawn on the side surface 103a of the base 103. At this time, the flashing material 10 is attached to the base 103 with the water-stopping material 42 pressed against the side surface 103a of the base 103. At this time, the flashing material 10 is attached to the base 103 with the support portion 19 abutting against the foundation 101 via the water-expansive material 41. In this manner, the flashing material 10 is attached to the building skeleton 100. The end caps seal the openings at both ends of the water-repellent material 10 in the left-right direction A, thereby preventing water from entering through the openings.

[0053] As described above, in the flashing material 10 of this embodiment, the water-expandable material 30 contained in the storage section 14 has both ends in the left-right direction A fixed to both ends in the left-right direction A of the storage section 14 by the two fixing members 90. This prevents the water-expandable material 30 from shrinking in the left-right direction A even when it dries. This reduces the likelihood of gaps being formed at both ends of the flashing material 10 due to the shrinkage of the water-expandable material 30. Therefore, when the water-expandable material 30 expands during a flood, it expands to fill gaps at the ends of the flashing material 10 in the length direction (left-right direction A) so as to prevent water from seeping under the floor, allowing the water-expandable material 30 to function effectively.

[0054] Furthermore, the water-swelling material 30 is clamped and fixed by the fixing member 90. This makes it easier to replace the water-swelling material 30 than when the water-swelling material 30 is affixed to the bottom wall 17 or the like with an adhesive or the like.

[0055] Furthermore, the thickness in the up-down direction C of the ends in the left-right direction A of the water-expanding material 30 attached to the bottom wall 17 is greater than the thickness in the up-down direction C of the center of the water-expanding material 30 in the left-right direction A. As a result, even if the ends of the main body 31 are clamped by the fixing members 90 and expansion of the clamped portions (thin portions 31a and short portions 32) is hindered, the thickness of the ends of the water-expanding material 30 itself is large, so the water-expanding material 30 can still function to block communication with the storage space S over its entire length in the left-right direction A.

[0056] Furthermore, the fixing member 90 in this embodiment allows both ends of the water-expandable material 30 housed in the housing 14 in the left-right direction A to be clamped and fixed to both ends of the housing 14 in the left-right direction A. This prevents the water-expandable material 30 from shrinking in the left-right direction A even when it dries. This reduces the likelihood of gaps being formed at both ends of the flashing material 10 due to the shrinkage of the water-expandable material 30. Therefore, when the water-expandable material 30 expands during a flood, it expands to fill gaps at the ends of the flashing material 10 in the length direction (left-right direction A) so as to prevent water from seeping under the floor, allowing the water-expandable material 30 to function effectively.

[0057] According to the flashing material 10 of this embodiment, the screw holes 21d1 and 21e1 allow the end caps to be screwed to the ends of the flashing material 10. At this time, the end caps can be attached by pressing them against the ends of the flashing material 10, which prevents water from entering the interior of the flashing material 10 through the openings at the ends of the flashing material 10.

[0058] Screw holes 21d1 and 21e1 are formed along the entire length of the flashing material 10 in the left-right direction A. Therefore, no matter where the flashing material 10 is cut in the left-right direction A to adjust the length, screw holes 21d1 and 21e1 are present at the ends of the cut flashing material 10. Therefore, it is possible to attach end caps with screws to the ends of the cut flashing material 10.

[0059] Furthermore, a water-expansive material 41 is disposed on the entire underside of the portion of the support portion 19 rearward of the protrusion 19a, and the water-expansive material 41 is made of the same material as the water-expansive material 30. The water-expansive material 41 may also be a water-stopping material, but by using it as a water-expansive material, it can more effectively cope with larger gaps that may occur on the top surface of the foundation 101 due to unevenness.

[0060] In addition, a water-stopping material 42 is attached to the rear surface of the upper rear wall 16a. This makes it possible to prevent water from entering between the mounting portion 11 and the base 103. In addition, a water-stopping material 43 is attached to the underside of the mounting plate portion 17b. This makes it possible to prevent water from entering between the mounting plate portion 17b of the detachable portion 3 and the support portion 19 of the main body portion 2. This makes it possible to prevent water from entering the interior side of the foundation 101 through the ventilation hole 16c of the flashing material 10 and the ventilation hole 102a of the foundation packing 102.

[0061] While the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments and various modifications are possible within the scope of the claims. For example, the fixing portion 91 may be configured to be elastically deformable so that the separation distance in the vertical direction C between the lower horizontal plate portion 91b and the upper horizontal plate portion 91a changes from a state smaller than the total thickness of the bottom wall 17, the thin-walled portion 31a, and the short portion 32 to a state larger than the total thickness. In this case, the fixing member 90 is configured by the fixing portion 91 without using screws 92, and the spring function of a generally U-shaped clip can be used to clamp and fix the end of the water-expanding material 30 to the bottom wall 17 with the fixing portion 91. This configuration also achieves the same effects as the above-described embodiments.

[0062] Alternatively, adhesive or adhesive tape may be used as the fixing member. Both ends of the water-swelling material 30 in the left-right direction A may be fixed to both ends of the storage section 14 in the left-right direction A using adhesive or adhesive tape. This method also provides the same effect as the above-described embodiment. Multiple water-swelling materials may be arranged in the storage section 14 in a continuous manner in the left-right direction A. In this case, it is preferable to fix both ends, intermediate portions, or all of the water-swelling materials, and in this case, it is preferable to fix them to the storage section 14 using a fixing member such as adhesive or adhesive tape. Some gaps may be present between the multiple divided pieces of water-swelling material, as long as they are filled when the material expands.

[0063] Furthermore, because the longer the water-expanding material is, the greater the shrinkage it undergoes as it dries, the water-expanding material 30 may be fixed partially or entirely in the left-right direction A, as long as no large gaps are created in the left-right direction A corners of the storage section 14. In other words, the water-expanding material 30 may be fixed partially, entirely, or in part or entirely so that the water-expanding material 30 contained inside the flashing material 10 does not shrink as it dries further, creating gaps inside that would prevent it from fulfilling its function in the event of a flood. For example, the water-expanding material 30 may be fixed slightly inward near both ends, or the middle portion may be fixed at one or more locations, or even entirely.

[0064] The screw holes 21d1, 21e1 do not have to be formed continuously over the entire length of the flashing material 10 in the left-right direction A. For example, the screw holes 21d1, 21e1 may be arranged discontinuously in series in the left-right direction A. Furthermore, the screw holes 21d1, 21e1 may be formed only at the ends of the flashing material 10 in the left-right direction A. [Explanation of symbols]

[0065] 10. Draining material 11 Mounting part 12 Extension 13 Front flap 14 Storage section 30 Water expansion material 90 Fixing member 100 Building Frame A. Left and right directions B. Forward and backward directions C Up and down direction

Claims

1. A flashing material comprising: a mounting portion that is attached to a building skeleton; an extension portion that extends from the mounting portion at an angle downward toward the front; a front flap portion that extends downward from the front of the extension portion; and a storage portion that is provided below the extension portion and behind the front flap portion and is capable of storing a water-expansion material; The water-draining material is characterized in that a part or all of the water-expansion material is fixed and contained in the containing section.

2. A flashing material comprising: a mounting portion that is attached to a building skeleton; an extension portion that extends from the mounting portion at an angle downward toward the front; a front flap portion that extends downward from the front of the extension portion; and a storage portion that is provided below the extension portion and behind the front flap portion and is capable of storing a water-expansion material; A water-repellent material characterized by having a fixing member that suppresses shrinkage in the left-right direction of the water-expanding material contained in the container section.

3. A flashing material comprising: a mounting portion that is attached to a building skeleton; an extension portion that extends from the mounting portion at an angle downward toward the front; a front flap portion that extends downward from the front of the extension portion; and a storage portion that is provided below the extension portion and behind the front flap portion and is capable of storing a water-expansion material; A water-repellent material characterized by having a fixing member that clamps and fixes the end of the water-expanding material contained in the storage section to the end of the storage section in the left-right direction.

4. The water-repellent material according to claim 3, wherein the thickness of the end portion of the water-expansion material is greater than the thickness of the center portion of the water-expansion material in the left-right direction.

5. A fixing member for fixing the water-expansive material to the storage portion of a flashing material, the fixing member comprising: a mounting portion attached to a building skeleton; an extension portion extending from the mounting portion at an angle downward toward the front; a front portion extending downward from the front of the extension portion; and a storage portion capable of storing the water-expansive material, the storage portion being provided below the extension portion and behind the front portion, A fixing member characterized by being capable of suppressing contraction in the left-right direction of the water-expanding material contained in the container.

6. A detachable member that can be attached to a water-repellent material for flood prevention, A detachable member comprising a bottom plate portion, a water-expandable material disposed on the bottom plate portion, and a fixing member for suppressing contraction of the water-expandable material in the left-right direction.

Images