Waterproofing structure and water-stopping body used in waterproofing structure

Abstract

To provide a waterproof structure which can properly prevent the intrusion of water from a clearance between a long-length body and a cylindrical body.SOLUTION: A waterproof structure comprises: a cylindrical sleeve material 3 which is inserted and arranged in a penetration hole 2 of a division body 1; a waterproof cylindrical body 5 attached to one end part of the sleeve material 3, surrounding a long-length body 4 which is derived from the sleeve material 3, and having flexibility and waterproof performance; a cutoff body B arranged at an inner face side of the waterproof cylindrical body 5 in a superimposition region between the waterproof cylindrical body 5 and the long-length body 4, having elasticity and cutoff performance, and comprising an insertion part for allowing the insertion of the long-length body 4 derived from the sleeve material 3; and a fasten material 7 for fastening the superimposition region between the waterproof cylindrical body 5 and the long-length body 4 in a state that the cutoff body B is contracted from an external peripheral side of the waterproof cylindrical body 5.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a waterproofing structure including a cylindrical sleeve material inserted into a through hole of a partition body, and a flexible and waterproof waterproof tubular body attached to one end of the sleeve material and surrounding an elongated body extending from the sleeve material, and to a water-stopping body used in the waterproofing structure. [Background technology]

[0002] Patent Document 1 shows a fire prevention structure including a cylindrical sleeve material (3) inserted into a through hole (2) of a partition body (1), a flexible tubular body (heat-resistant tubular body 5) attached to one end of the sleeve material (3) and surrounding a long body (4) extending from the sleeve material (3), and a fastening member (B) fastening the overlapping portion between the tubular body (5) and the long body (4) from the outer surface side of the tubular body (5). In the fire prevention structure of Patent Document 1, the tubular body (5) is a heat-resistant tubular body (5) having heat resistance, and is a fire prevention structure. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-226965 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the above-mentioned structure, while the intrusion of water from the tip of the tubular body is prevented to some extent by fastening the tip of the tubular body from the outer surface side with a fastening material, gaps may form between the elongated body and the tubular body due to twisting of the flexible elongated body, etc., and there is a risk of water intrusion through the gaps thus formed.

[0005] In view of this situation, the main object of the present invention is to provide a waterproofing structure that can appropriately prevent water from entering between a long body and a tubular body, and a water-stopping body for use in the waterproofing structure. [Means for solving the problem]

[0006] The first characteristic configuration of the present invention is a cylindrical sleeve member that is inserted into a through hole of a partition body, A waterproof tubular body having flexibility and waterproofness, which is attached to one end of the sleeve material and surrounds the elongated body extending from the sleeve material; A water stop body is arranged on the inner surface side of the waterproof cylindrical body at the overlapping portion between the waterproof cylindrical body and the long body, and has elasticity and water stop properties and an insertion portion through which the long body extending from the sleeve material is inserted; The waterproof tubular body is provided with a fastening material that fastens the overlapping portion between the waterproof tubular body and the elongated body from the outer surface side of the waterproof tubular body in a state in which the water-stopping body is contracted.

[0007] According to this configuration, the gap formed between the waterproof tubular body and the long body can be sealed with a water-stopping body having water-stopping properties, and by fastening the water-stopping body from the outer surface side of the waterproof tubular body at the overlapping portion between the waterproof tubular body and the long body with a fastening material, the water-stopping body is reduced in diameter together with the waterproof tubular body, so that even if a gap exists between the waterproof tubular body and the water-stopping body or between the long body and the water-stopping body, the gap can be sealed with the water-stopping body, and water can be appropriately prevented from entering between the waterproof tubular body and the long body.

[0008] A second characteristic configuration of the present invention is the water stop body used in a waterproof structure, The water stop body has a cylindrical outer shape, and the insertion portion is a circular hole penetrating the water stop body along the axial direction, and a hole diameter changing slit is formed from the outer edge of the water stop body to the insertion portion, The hole diameter-changing notch is formed in a shape that shifts in the circumferential direction of the water stop body toward the radial outer edge of the water stop body.

[0009] According to this configuration, by shifting the portions on both sides of the hole-diameter-changing slit in the water stop body in opposite directions along the hole-diameter-changing slit, the size of the insertion part can be changed while maintaining the shape of the insertion part as circular or nearly circular. Therefore, even if the thickness of the elongated body to be inserted into the insertion part changes, the inner shape of the insertion part can be changed to correspond to the thickness of the elongated body, so that elongated bodies of various thicknesses can be inserted into the insertion part while appropriately preventing water from entering between the elongated body and the water stop body.

[0010] A third characteristic configuration of the present invention is that the water-stopping body main body has an insertion slit extending from the outer edge of the water-stopping body main body toward the center of the water-stopping body main body and not connected to the insertion portion.

[0011] According to this configuration, even if the elongated body is relatively thin and a gap is likely to form between the elongated body and the water stop body when the elongated body is inserted into the insertion section, the gap formed between the elongated body and the water stop body can be reduced by inserting the elongated body into the insertion slit, and therefore water can be appropriately prevented from entering between the elongated body and the water stop body while the elongated body is being inserted into the water stop body. In addition, since the insertion slit is not connected to the insertion portion, the thin, elongated body can be easily positioned within the insertion slit by inserting it from the end on the outer edge side of the insertion slit and clamping it, making it easy to install the thin, elongated body within the insertion slit.

[0012] A fourth characteristic configuration of the present invention is that the water stop body is formed into a drum shape in which the axial end portion of the water stop body is larger in the radial direction than the axial central portion.

[0013] According to this configuration, the axial central portion of the water-stopping body main body is tightened and shrunk from the radial outside with a tightening material, and since there are relatively large diameter ends of the water-stopping body main body on both sides of the tightening material in the axial direction, the ends of the water-stopping body main body can be prevented from causing the tightening material to shift out of position in the axial direction.

[0014] A fifth characteristic configuration of the present invention is that the water stop body main body includes a plurality of the insertion portions.

[0015] According to this configuration, even if there are multiple elongated bodies, by inserting the multiple elongated bodies through separate insertion portions, the corners formed between the elongated bodies can also be sealed by the water-stopping body main body.

[0016] A sixth characteristic feature of the present invention is that a blocking member is detachably provided in the insertion portion so as to block the insertion portion.

[0017] According to this configuration, by attaching a blocking member to the insertion portions among the multiple insertion portions through which the elongated body is not inserted, it becomes easier to prevent water from entering through the insertion portions through which the elongated body is not inserted. [Brief description of the drawings]

[0018] [Figure 1] Partially cutaway exploded perspective view showing the waterproof structure [Diagram 2] Vertical cross-section of waterproofing structure after completion [Diagram 3] A front view of a water stopper with a blocking member attached to an insertion portion [Figure 4] A front view of the water stopper with the blocking member removed from the insertion portion. [Diagram 5] Side view of water stopper [Figure 6] Front view of the waterproofing device in the first use state [Figure 7] Front view of the water stopper in the second use state [Figure 8] Front view of the water stopper in the third use state [Figure 9] (a) Normal state of the insertion part, (b) Reduced diameter of the insertion part, (c) Expanded diameter of the insertion part [Figure 10] Vertical cross-section of waterproofing structure during construction DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] A waterproof structure according to the present invention and a water stop body used in the waterproof structure will be described. 1 and 2, the waterproofing structure A includes a cylindrical sleeve material 3 inserted into a through hole 2 of a partition body 1 (see FIG. 2), and a flexible and waterproof waterproof tubular body 5 attached to one end of the sleeve material 3 and surrounding an elongated body 4 extending from the sleeve material 3. The waterproofing structure A further includes a water stop body B arranged on the inner side of the waterproof tubular body 5 at the overlapping portion between the waterproof tubular body 5 and the elongated body 4, having elasticity and water stop properties and including an insertion portion 12 through which the elongated body 4 extending from the sleeve material 3 is inserted, and a fastening member 7 for fastening the overlapping portion between the waterproof tubular body 5 and the elongated body 4 from the outer side of the waterproof tubular body 5 in a state in which the water stop body B is contracted.

[0020] The partition 1 is a fireproof structure that partitions the space inside the building, such as a fire wall section (see FIG. 2) that partitions the space vertically, or a fireproof floor section (or a fireproof ceiling section) that partitions the space horizontally. Examples of the material that constitutes the partition 1 include reinforced concrete (RC), lightweight aerated concrete (ALC), and gypsum board. Examples of the long body 4 inserted into the through hole 2 of the partition body 1 include water supply and drainage pipes, sheath pipes 4A for wiring and piping (see Fig. 2, Fig. 6 to Fig. 8, Fig. 10), refrigerant pipes for air conditioners, electric cables 4B such as power lines and remote control lines (see Fig. 6 to Fig. 8), optical fiber cables, coaxial cables, LAN cables, control cables, etc. The cross-sectional shape of these long bodies 4 can be circular, elliptical, etc.

[0021] In this embodiment, as shown in Fig. 2, a circular through hole 2 penetrating the partition 1 in the wall thickness direction is formed, and a treatment tool D is attached to each of the openings at both ends of the through hole 2 in the wall thickness direction. Each of the pair of treatment tools D includes a sleeve material 3 and a waterproof tubular body 5 attached to the sleeve material 3. A water stop body B is attached to one of the pair of treatment tools D (the treatment tool D on the left side in Fig. 2), forming a waterproof treatment structure A.

[0022] Next, each component of the waterproofing structure A will be described, with directions defined based on the state in which the waterproofing structure A is applied to the partition body 1 as shown in Fig. 2. In other words, the direction along the axis of the water stop body B and the treatment tool D and the wall thickness direction of the partition body 1 are the same direction, and will be referred to simply as the axial direction L below. In addition, in the axial direction L, the side on which the water stop body B exists with respect to the sleeve material 3 will be referred to as the outer side L1.

[0023] First, the sleeve material 3 will be described in detail. As shown in Figs. 1 and 2, the sleeve material 3 includes a sleeve body 3B that is inserted into the through hole 2 of the partition body 1, and a flange portion 3A that is provided at the end of the sleeve material 3 on the outside L1. The flange portion 3A has a diameter larger than the inner diameter of the through hole 2, and is formed in a circular shape capable of abutting against the opening periphery of the through hole 2 in the partition 1 from the outside L1. The sleeve body 3B is formed in a cylindrical shape having a length less than half the length in the axial direction L of the through hole 2 and an outer diameter slightly smaller than the inner diameter of the through hole 2. Furthermore, a thin-walled, annular anti-pullout protrusion 3C having a diameter larger than the inner diameter of the through hole 2 is integrally formed at one or more locations (three locations in this embodiment) in the axial direction L of this sleeve body 3B. Therefore, when the sleeve material 3 is forced into and inserted into the through hole 2 of the partition body 1, the anti-pullout protrusion 3C of the sleeve material 3 enters the through hole 2 while being flexibly deformed, and the tip of the flexibly deformed anti-pullout protrusion 3C comes into contact with the inner surface of the through hole 2 while slightly biting into it, thereby preventing the sleeve material 3 from coming out.

[0024] Next, the waterproof tubular body 5 will be described in detail. The waterproof cylindrical body 5 is formed of a flexible and waterproof sheet material in a cylindrical shape, and is configured to be able to surround the long body 4 led out from the sleeve material 3 to the outside L1. In this embodiment, the waterproof cylindrical body 5 is formed of a flexible and waterproof multi-layered aluminum foil laminate 5A in a cylindrical shape. Specifically, as shown in FIG. 1, two rectangular aluminum foil laminates 5A are overlapped, and the side edge portions 5B of the long sides of the overlapped aluminum foil laminates 5A are bonded to each other in an airtight state by heat fusion to form a strip shape to form a cylindrical shape. The waterproof cylindrical body 5 is formed of the multi-layered aluminum foil laminate 5A, and is therefore heat resistant in addition to being flexible and waterproof. The cylindrical aluminum foil laminate 5A is then fitted around the flange portion 3A of the sleeve material 3, and the polyethylene film constituting the cylindrical inner surface layer of the aluminum foil laminate 5A and the outer surface of the polyethylene flange portion 3A are fixed in an airtight state by heat fusion.

[0025] Next, water-stopping body B will be described in detail. As shown in Fig. 2, the water stop B is attached to the end of the outer side L1 of the waterproof tubular body 5 with the long body 4 inserted therethrough, and closes the gap formed between the long body 4 and the waterproof tubular body 5, preventing water from entering the sleeve material 3 from between the long body 4 and the waterproof tubular body 5. As shown in Figs. 1 and 3 to 5, the water stop B is elastic and has a cylindrical outer shape.

[0026] The water stop body B is provided with a water stop body main body 11 having a cylindrical outer shape, a circular hole-shaped insertion part 12 penetrating the water stop body main body 11 along the axial direction L, and a hole diameter changing slit 13 formed from the outer edge 11A of the water stop body main body 11 to the insertion part 12. The water stop body main body 11 also has an insertion slit 14 formed from the outer edge 11A of the water stop body main body 11 toward the center of the water stop body main body 11 in a state where it is not connected to the insertion part 12. The term "circular hole" refers to a hole having a circular shape or a shape close to the circular shape, and includes holes having a circular shape, an elliptical shape, an egg shape, an oval shape, an elliptical shape, and a polygonal shape having pentagons or more. Similarly, the term "cylindrical shape" refers to a shape close to the cylindrical shape, and has an end face having a circular shape or a shape close to the circular shape as described above.

[0027] As shown in FIG. 5, the water stop body 11 has a small diameter portion 11B and a large diameter portion 11C that is larger in the radial direction R than the small diameter portion 11B, and is formed into a shape having a portion with a different diameter size in the axial direction L. In this embodiment, the center portion of the water stop body 11 in the axial direction L is the small diameter portion 11B, and both end portions of the water stop body 11 in the axial direction L are the large diameter portions 11C, and the shape gradually increases in diameter from the center portion toward the end portions in the axial direction L. In other words, the water stop body 11 is formed in a drum shape in which the end portions in the axial direction L of the water stop body 11 are larger in the radial direction R than the center portion in the axial direction L.

[0028] As shown in Figs. 3 and 4, the water stopper body 11 has a plurality of insertion parts 12. In this embodiment, the water stopper body 11 has three insertion parts 12, and the three insertion parts 12 are arranged at equal intervals along the circumferential direction C. A hole diameter changing slit 13 is formed for each of the plurality of insertion parts 12, and in this embodiment, the hole diameter changing slits 13 are formed in three places. Also, the insertion slits 14 are formed between the insertion parts 12 arranged in the circumferential direction C, and in this embodiment, the insertion slits 14 are formed in three places. Note that Fig. 3 shows a state in which a blocking member 15, which will be described later, is attached to the insertion parts 12, and Fig. 4 shows a state in which the blocking member 15 is removed from the insertion parts 12.

[0029] The hole diameter changing slit 13 is formed in a shape that shifts in the circumferential direction C of the water stop body 11 as it approaches the outer edge side R1 of the water stop body 11. In this embodiment, the hole diameter changing slit 13 is formed in an arc shape that gradually shifts to one side C1 in the circumferential direction C as it approaches the outer edge side R1 of the water stop body main body 11. To explain further, the hole diameter changing slit 13 is formed in an arc shape with a radius of curvature larger than the radius of curvature of the inner edge 12A of the insertion part 12. The end of the hole diameter changing slit 13 on the center side R2 in the radial direction R is connected to the end of the inner edge 12A of the insertion part 12 on the other side C2 in the circumferential direction C from the tangential direction. In addition, the end of the hole diameter changing slit 13 on the outer edge side R1 in the radial direction R is connected to the outer edge 11A of the water stop body main body 11 so that the angle of the other side C2 in the circumferential direction C with respect to the outer edge 11A is an acute angle.

[0030] In this way, since the outer edge side R1 of the insertion portion 12 in the water-stopping body main body 11 is divided by the hole diameter changing notch 13, the long body 4 can be inserted into the insertion portion 12 through the outer edge side R1 of the water-stopping body main body 11, making it easier to insert the long body 4 into the insertion portion 12. In addition, by shifting the portions on both sides of the hole diameter-changing notch 13 in the water-stopping body main body 11 in opposite directions along the hole diameter-changing notch 13, the size of the insertion portion 12 can be changed while maintaining the shape of the insertion portion 12 as circular or a shape close to circular. Specifically, from the normal state shown in Figure 9(a) to the reduced diameter state shown in Figure 9(b), the portion on one side C1 of the hole diameter-changing notch 13 in the circumferential direction C is moved toward the center R2 in the radial direction R relative to the portion on the other side C2 in the circumferential direction C, and the portion on one side C1 of the hole diameter-changing notch 13 in the circumferential direction C is made to overlap the inner surface of the insertion portion 12, thereby making the insertion portion 12 smaller. 9(c), the hole-diameter-changing slit 13 can be enlarged by moving one side C1 in the circumferential direction C of the hole-diameter-changing slit 13 toward the center R2 in the radial direction R relative to the other side C2 in the circumferential direction C of the hole-diameter-changing slit 13, and forming the inner surface of the insertion portion 12 with the other side C2 in the circumferential direction C of the hole-diameter-changing slit 13. In this case, since the one side C2 in the circumferential direction C of the hole-diameter-changing slit 13 forms part of the outer surface of the waterstop body, the hole-diameter-changing slit 13 appears to be shorter. Therefore, even if the thickness of the elongated body 4 to be inserted into the insertion portion 12 changes, the size of the insertion portion 12 can be changed to a size corresponding to the thickness of the elongated body 4, so that elongated bodies 4 of various thicknesses can be inserted into the insertion portion 12 while properly preventing water from entering between the elongated body 4 and the water-stopping body main body 11.

[0031] As shown in FIGS. 3 and 4, the insertion slit 14 is formed linearly along the radial direction R. In this embodiment, the insertion slit 14 is formed between two adjacent insertion portions 12 in the circumferential direction C. An end portion on the outer edge side R1 in the radial direction R of the insertion slit 14 is connected to the outer edge 11A of the water stop body 11 from the normal direction. An end portion on the center side R2 in the radial direction R of the insertion slit 14 is not connected to the insertion portion 12, and is located between two adjacent insertion portions 12 in the circumferential direction C.

[0032] 6 to 8, in order to insert the thin, elongated body 4 into the insertion portion 12, the thin, elongated body 4 is inserted into the insertion slit 14, so that the gap formed between the thin, elongated body 4 and the water stop body 11 is reduced and the elongated body 4 can be inserted into the water stop body 11. Therefore, while the thin, elongated body 4 is being inserted into the water stop body 11, water can be appropriately prevented from entering between the thin, elongated body 4 and the water stop body 11. In addition, since the insertion slit 14 is not connected to the insertion portion 12, the thin, elongated body 4 can be easily positioned within the insertion slit 14 by inserting it from the end of the outer edge side R1 of the insertion slit 14 and clamping it, making it easy to install it within the insertion slit 14.

[0033] As shown in Fig. 3, the water stopper B is provided with a detachable blocking member 15 that is installed in the insertion portion 12 of the water stopper body 11 so as to block the insertion portion 12. That is, the blocking member 15 is formed in a cylindrical shape having the same thickness as the thickness of the water stopper body 11, and when the long body 4 is inserted into the insertion portion 12 of the water stopper body 11, the blocking member 15 can be removed from inside the insertion portion 12 to open the insertion portion 12, thereby allowing the long body 4 to be inserted into the insertion portion 12. When the long body 4 is not inserted into the insertion portion 12, the blocking member 15 can be attached inside the insertion portion 12 to block the insertion portion 12 with the blocking member 15. Therefore, when there is an insertion portion 12 among the multiple insertion portions 12 through which the long body 4 is not inserted, by attaching a blocking member 15 to that insertion portion 12, it becomes easier to prevent water from entering through the insertion portion 12 through which the long body 4 is not inserted.

[0034] The water stop body B (water stop body main body 11 and blocking member 15) is made of a material that is impermeable to water and is elastically deformable. In this embodiment, the water stop body B is made of a rubber foam or a resin foam having a closed cell structure or a semi-open cell structure. Specifically, the water stop body B is made of an EPDM foam having a semi-open cell structure. In this way, the water stop body B has water stoppage properties by making the water stop body main body 11 and the blocking member 15 from a material that is impermeable to water, and has elasticity by making the water stop body main body 11 and the blocking member 15 from a material that is elastically deformable. In this embodiment, the water stop body main body 11 is formed from a plate-shaped foam by punching with a press process, and the insertion part 12 is formed in the water stop body 11, and the foam generated by forming the insertion part 12 is used as the blocking member 15. The water-stopping body main body 11 and the blocking member 15 may be completely separate, but the water-stopping body main body 11 and the blocking member 15 may be formed in a partially connected state during press processing, and the blocking member 15 may be separated from the water-stopping body main body 11 when the water-stopping body 11 is to be used.

[0035] As shown in Figure 2, of the overlapping portions between the waterproof tubular body 5 and the multiple long bodies 4, two locations, a first set fastening position P1 close to the flange portion 3A of the sleeve material 3 and a second set fastening position P2 biased toward the other end side of the waterproof tubular body 5, are each fastened with a fastening material 7. In particular, in the second set fastening position P2 of the left-side measure device D (waterproof measure structure A) in Figures 2 and 10, the water-stopping body main body 11 is inserted into the waterproof cylindrical body 5 as shown in Figure 10, and is fastened with the fastening material 7 as shown in Figure 2.

[0036] In this embodiment, a resin cable tie (for example, commercially available Insulock (registered trademark)) is used as the fastening material 7. As shown in FIG. 1, this fastening material 7 is constructed by integrally forming a tubular engaging portion 7B at the base end of a band portion 7A, which has a number of engaging recesses formed at equal intervals on one side thereof, that can be inserted from the tip side of the band portion 7A and that has an engaging claw that engages with the engaging recesses at the insertion site to prevent the band body from slipping out.

[0037] Figures 6 to 8 show examples of the first to third use states of the water stop body B. In any of the use states shown in Figures 5 to 7, the fastening material 7 can be further fastened to cause the water stop body B to be deformed further in diameter.

[0038] In the first use state shown in FIG. 6, two long bodies 4 (circular sheath tubes 4A) are inserted using two insertion parts 12, and one long body 4 (elliptical electric cable 4B) is inserted using one insertion slit 14. A blocking member 15 is attached to one insertion part 12 into which no long body 4 is inserted. This first use state is for hot water supply and cold water supply, for example, and three long bodies 4, a hot water sheath tube 4A, a cold water sheath tube 4A, and an electric cable 4B, are inserted into the water stop body 11. In the first use state, the two sheath tubes 4A have the same outer diameter as the hole diameter of the insertion part 12. These two sheath tubes 4A are inserted into the insertion parts 12 in the normal state as shown in FIG. 9(a).

[0039] In the second use state shown in Fig. 7, similarly to the first use state, two elongated bodies 4 (circular sheath tubes 4A) are inserted using the two insertion portions 12, and one elongated body 4 (oval electric cable 4B) is inserted using one insertion slit 14, but the lower right sheath tube 4A of the two sheath tubes 4A has an outer diameter smaller than the hole diameter of the insertion portion 12. This sheath tube 4A with a smaller outer diameter is inserted into the insertion portion 12 in a reduced diameter state as shown in Fig. 9(b).

[0040] In the third use state shown in Fig. 8, similarly to the first use state, two elongated bodies 4 (circular sheath tubes 4A) are inserted using the two insertion portions 12, and one elongated body 4 (oval electric cable 4B) is inserted using one insertion slit 14, but the lower right sheath tube 4A of the two sheath tubes 4A has an outer diameter larger than the hole diameter of the insertion portion 12. This sheath tube 4A with a larger outer diameter is inserted into the insertion portion 12 in an expanded diameter state as shown in Fig. 9(c).

[0041] Furthermore, as shown in Figure 2, at two longitudinal locations (first set fastening position P1 and second set fastening position P2) of the overlapping portion between the waterproof tubular body 5 and the long body 4 that are fastened with fastening material 7, the gap between the waterproof tubular body 5 and the long body 4 and the gap formed between adjacent long bodies 4 can be reduced. In particular, at the second set fastening position P2 fastened by the fastening material 7 in the waterproofing structure A, the water-stopping body B together with the waterproof tubular body 5 shrinks and deforms to a shape that conforms to the outer shape of the elongated body 4 and the inner shape of the waterproof tubular body 5, and this water-stopping body B can seal the gaps that exist between the waterproof tubular body 5 and the water-stopping body B and between the elongated body 4 and the water-stopping body B, thereby appropriately preventing water from entering between the waterproof tubular body 5 and the elongated body 4.

[0042] [Another embodiment] Other embodiments of the present invention will be described below. Note that the configurations of the embodiments described below are not limited to being applied alone, but may also be applied in combination with the configurations of other embodiments.

[0043] (1) In the above embodiment, an example has been described in which the cylindrical water stop body 11 is shaped like a drum. However, the cylindrical water stop body 11 may be any shape as long as it is cylindrical or a shape close to cylindrical, and may be a truncated cone shape, etc.

[0044] (2) In the above embodiment, an example was described in which the hole diameter-changing slit 13 was formed in an arc. However, the present invention is not limited to this configuration. For example, the hole diameter-changing slit 13 may be formed in a straight line, or may be formed in an arc shape with a larger radius of curvature or a smaller radius of curvature (spiral shape) toward the outer edge side R1 in the radial direction R.

[0045] (3) In the above embodiment, an example has been described in which the insertion portion 12 is provided in three pieces. However, the present invention is not limited to such a configuration. For example, the insertion portion 12 may be provided in one or two pieces, or in four or more pieces.

[0046] (4) In the above embodiment, the hole diameter-changing notch 13 is provided for each of the multiple insertion parts 12. However, the present invention is not limited to such a configuration. For example, the hole diameter-changing notch 13 may be provided for only some of the multiple insertion parts 12, or the hole diameter-changing notch 13 may not be provided when it is not necessary to change the hole diameter of the insertion part 12.

[0047] (5) In the above embodiment, the configuration in which the insertion slits 14 are provided at three locations has been described as an example. However, the present invention is not limited to such a configuration. For example, the insertion slits 14 may be provided at one or two locations, or at four or more locations, and the insertion slits 14 may not be provided when the thin elongated body 4 is not inserted. [Explanation of symbols]

[0048] 1 Partition 2 Through holes 3 Sleeve material 4 Long body 5 Waterproof tubular body 7 Fastening material 11 Water stop body 11A Outer edge 12 Insertion part 13 Hole diameter change notch 14 Insertion notch 15 Closing material A Waterproof structure B Water stop body C circumferential direction L axis direction R Radial direction R1 Outer edge

Claims

1. A cylindrical sleeve member that is inserted into the through hole of the partition body; A waterproof tubular body having flexibility and waterproofness, which is attached to one end of the sleeve material and surrounds the elongated body extending from the sleeve material; A water stop body is arranged on the inner surface side of the waterproof cylindrical body at the overlapping portion between the waterproof cylindrical body and the long body, and has elasticity and water stop properties and an insertion portion through which the long body extending from the sleeve material is inserted; A fastening material is provided to fasten the overlapping portion between the waterproof cylindrical body and the long body from the outer surface side of the waterproof cylindrical body in a state in which the water stop body is contracted, The outer shape of the water stop body is formed in a cylindrical shape, and the insertion part is a circular hole penetrating the water stop body along the axial direction of the water stop body, and a hole diameter changing slit is formed from the outer edge of the water stop body to the insertion part, The hole diameter changing notch is formed in a shape that is shifted in the circumferential direction of the water stop body toward the radial outer edge side of the water stop body, The water-stopping body main body is formed from the outer edge of the water-stopping body main body toward the center of the water-stopping body main body without being connected to the insertion portion, and is provided with an insertion slit through which a long body thinner than the long body inserted into the insertion portion is inserted, forming a waterproofing structure.

2. A cylindrical sleeve member that is inserted into the through hole of the partition body; A waterproof tubular body having flexibility and waterproofness, which is attached to one end of the sleeve material and surrounds the elongated body extending from the sleeve material; A water stop body is arranged on the inner surface side of the waterproof cylindrical body at the overlapping portion between the waterproof cylindrical body and the long body, and has elasticity and water stop properties and an insertion portion through which the long body extending from the sleeve material is inserted; A fastening material is provided to fasten the overlapping portion between the waterproof cylindrical body and the long body from the outer surface side of the waterproof cylindrical body in a state in which the water-stopping body is contracted, The outer shape of the water stop body is formed in a cylindrical shape, and the insertion part is a circular hole penetrating the water stop body along the axial direction of the water stop body, and a hole diameter changing slit is formed from the outer edge of the water stop body to the insertion part, The hole diameter changing notch is formed in a shape that is shifted in the circumferential direction of the water stop body toward the radial outer edge of the water stop body, The water-stopping body main body is a waterproof structure having a plurality of the insertion portions.

3. A cylindrical sleeve member that is inserted into the through hole of the partition body; A waterproof tubular body having flexibility and waterproofness, which is attached to one end of the sleeve material and surrounds the elongated body extending from the sleeve material; A water stop body is arranged on the inner surface side of the waterproof cylindrical body at the overlapping portion between the waterproof cylindrical body and the long body, and has elasticity and water stop properties and an insertion portion through which the long body extending from the sleeve material is inserted; The waterproofing body is used in a waterproofing structure provided with a fastening material that fastens the overlapping portion between the waterproofing cylindrical body and the long body from the outer surface side of the waterproofing cylindrical body in a state in which the waterproofing body is contracted, The water stop body has a cylindrical outer shape, and the insertion portion is a circular hole penetrating the water stop body along the axial direction, and a hole diameter changing slit is formed from the outer edge of the water stop body to the insertion portion, The hole diameter changing notch is formed in a shape that is shifted in the circumferential direction of the water stop body toward the radial outer edge of the water stop body, The water-stopping body main body is formed from the outer edge of the water-stopping body main body toward the center of the water-stopping body main body without being connected to the insertion portion, and is provided with an insertion slit through which an elongated body thinner than the elongated body inserted into the insertion portion is inserted.

4. A cylindrical sleeve member that is inserted into the through hole of the partition body; A waterproof tubular body having flexibility and waterproofness, which is attached to one end of the sleeve material and surrounds the elongated body extending from the sleeve material; A water stop body is arranged on the inner surface side of the waterproof cylindrical body at the overlapping portion between the waterproof cylindrical body and the long body, and has elasticity and water stop properties and an insertion portion through which the long body extending from the sleeve material is inserted; The waterproofing body is used in a waterproofing structure provided with a fastening material that fastens the overlapping portion between the waterproofing cylindrical body and the long body from the outer surface side of the waterproofing cylindrical body in a state in which the waterproofing body is contracted, The water stop body has a cylindrical outer shape, and the insertion portion is a circular hole penetrating the water stop body along the axial direction, and a hole diameter changing slit is formed from the outer edge of the water stop body to the insertion portion, The hole diameter changing notch is formed in a shape that is shifted in the circumferential direction of the water stop body toward the radial outer edge of the water stop body, The water stop body includes a plurality of the insertion portions.

5. The water-stopping body described in claim 4, wherein the water-stopping body main body is formed from the outer edge of the water-stopping body main body toward the center of the water-stopping body main body in a state where it is not connected to the insertion portion, and wherein an insertion slit is provided through which an elongated body thinner than the elongated body inserted into the insertion portion is inserted.

6. 6. The water stop body according to claim 4, further comprising a detachable blocking member disposed within said insertion portion so as to block said insertion portion.

7. The water stop body according to any one of claims 3 to 6, wherein the water stop body is formed in a drum shape in which the axial end portion of the water stop body is larger in the radial direction than the axial central portion of the water stop body.

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