JP2014114670A - Draining structure and building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a draining structure and a building that can prevent and suppress water from entering the building and secure waterproof performance against blow-up of rainwater.SOLUTION: A draining member 68 which prevents rainwater from entering a building 10 is provided on a lower side of an external wall panel 30. A sponge rubber body 74 is provided for the draining member 68, and is arranged in a gap 75 between the draining member 68 and a cutoff accessory 66 opposed to the draining member 68. Consequently, rainwater guided into a hollow part 38 of the external wall panel 30 is discharged downward with its own weight through a plurality of small holes formed in the sponge rubber body 74. The sponge body 74 is provided in the gap 75 between the draining member 68 and cutoff accessory 66 and the water passage resistance at the gap 75 thereby becomes large. Consequently, the sponge rubber body 74 can prevent and suppress rainwater blown up from below the draining member 68 from entering.

Description

  The present invention relates to a draining structure used for an outer wall of a building and a building to which the draining structure is applied.

  In Patent Document 1, water that falls in a space provided on the back surface side of the siding material is discharged outside the building by a parting material (draining member) provided on the back surface side of the siding material constituting a part of the outer wall. Discharging technology is disclosed.

  If it demonstrates concretely, the water receiving part will be provided in this parting material, and the said parting material will be arrange | positioned in the clearance gap between the siding materials arrange | positioned up and down. For this reason, if the water receiving part receives water falling in the space on the back side of the siding material, the water falling on the water receiving part is discharged from the gap between the siding materials arranged above and below the building. It has become.

  On the other hand, the parting material is formed with an opening that communicates the space above the water receiving portion with the space on the back side of the siding material disposed below. The opening is covered with a cover that guides water falling from above to the water receiver, and an air flow path is formed at least at one end in the width direction of the cover.

  This air flow path ensures air permeability on the back side of the siding material arranged on the lower side, and water falling from above the opening passes through the opening into the space on the back side of the siding material. It can be prevented from flowing down.

JP 2006-144236 A

  However, in this prior art, when rainwater blows up from the lower end of the parting material, there is a possibility that it cannot be sufficiently waterproof depending on the amount of rainwater blown up.

  In view of the above facts, an object of the present invention is to obtain a draining structure and a building capable of preventing and suppressing water intrusion into a building and ensuring waterproofing performance by blowing up rainwater.

  The draining structure according to the first aspect of the present invention includes a draining member provided on a lower side of an outer wall panel constituting a part of the outer wall and preventing water from entering the building, and the draining member provided on the draining member. A rubber-like elastic body disposed in a gap formed between the outer wall panel and the opposite wall surface, wherein the draining member is provided so as to face the lower end surface of the outer wall panel, A vertical wall extending along the outer wall surface of the outer wall panel from the outer end, and the rubber-like elastic body is a long first rubber-like elastic portion facing the lateral wall; A plurality of the first rubber-like elastic portions are arranged along the longitudinal direction of the first rubber-like elastic portion, the first through-hole passing through the short direction intersecting with the longitudinal direction of the first rubber-like elastic portion, and facing the vertical wall, A long shape provided with a gap between the first rubber-like elastic part Two rubber-like elastic portions and a plurality of the first through holes in the second rubber-like elastic portion are arranged at positions that do not overlap in the height direction of the building, and intersect the longitudinal direction of the second rubber-like elastic portion. And a second through hole penetrating in the short direction.

  In the draining structure according to the first aspect of the present invention, a draining member is provided on the lower side of the outer wall panel constituting a part of the outer wall to prevent water (rain water) from entering the building. The draining member is provided with a rubber-like elastic body, and the rubber-like elastic body is arranged in a gap formed between the draining member and a wall surface facing the draining member. For this reason, compared with the case where nothing is provided in the said clearance gap, the water flow resistance in a clearance gap becomes large. Therefore, the rubber-like elastic body can prevent / suppress the intrusion of rainwater that blows from below the draining member.

  Moreover, the draining member is comprised including the horizontal wall and the vertical wall, and the horizontal wall is provided so that the lower end surface of an outer wall panel can be opposed. The vertical wall extends along the outer wall surface of the outer wall panel from the outdoor side end of the horizontal wall. For this reason, the water that has fallen on the horizontal wall through the outer wall panel is guided to the vertical wall and is discharged outside the building through the vertical wall.

  On the other hand, the rubber-like elastic body includes a first rubber-like elastic portion and a second rubber-like elastic portion formed in a long shape. A gap is provided between the first rubber-like elastic portion and the second rubber-like elastic portion, the first rubber-like elastic portion is opposed to the lateral wall of the draining member, and the second rubber-like elastic portion is the drainage member. Opposite the vertical wall.

  The first rubber-like elastic portion has a plurality of first through holes that pass through the short direction intersecting the longitudinal direction of the first rubber-like elastic portion along the longitudinal direction of the first rubber-like elastic portion. ing. On the other hand, the second rubber-like elastic portion is provided with a plurality of second through holes that pass through the short direction intersecting the longitudinal direction of the second rubber-like elastic portion along the longitudinal direction of the second rubber-like elastic portion. The second through hole and the first through hole formed in the first rubber-like elastic portion are provided at positions that do not overlap in the height direction of the building.

  Therefore, rainwater flowing from above the rubber-like elastic body is guided downward through at least the first through-hole formed in the first rubber-like elastic portion and the second through-hole formed in the second rubber-like elastic portion. As a result, it is discharged outside the building. On the other hand, rainwater that blows up from below the rubber-like elastic body is prevented from entering upward by the second rubber-like elastic portion.

  In addition, although the 2nd through-hole is formed in the 2nd rubber-like elastic part, since the 2nd through-hole and the 1st through-hole are provided in the position which does not overlap in the height direction of a building, The water blown from below through the second through-hole formed in the two rubber-like elastic portions is prevented / suppressed from entering upward by the first rubber-like elastic portions.

  Here, the “rubber-like elastic body” is a thermosetting or thermoplastic elastic body, and examples of the thermosetting include EPDM rubber, chlorinated rubber, urethane rubber, natural rubber, isoprene rubber, In thermoplasticity, all TPE (thermoplastic elastomer) corresponds, for example, TPO (olefin type), TPS (styrene type), and PVC (chlorinated vinyl) may be used. The “rubber-like elastic body” includes, in these materials, a solid body without bubbles or a sponge body having a plurality of bubbles (small holes).

  For this reason, when the first rubber-like elastic part and the second rubber-like elastic part are solid bodies, rainwater flowing from above the rubber-like elastic body is guided downward through the first through hole and the second through hole. On the other hand, when the first rubber-like elastic part and the second rubber-like elastic part are sponge-like bodies, rainwater flowing from above the rubber-like elastic body is not only the first through-hole and the second through-hole, but also the first rubber-like elastic part. And a plurality of small holes formed in the second rubber-like elastic part.

  The draining structure according to the present invention described in claim 2 is the draining structure according to claim 1, wherein the second rubber-like elastic portion is located closer to the distal end side of the vertical wall than the second rubber-like elastic portion. A third rubber-like elastic portion provided with a gap and a plurality of the second through holes in the third rubber-like elastic portion are arranged at positions that do not overlap in the height direction of the building, and the third rubber-like elastic portion And a third through hole penetrating in the short direction intersecting with the longitudinal direction of the elastic portion.

  In the draining structure according to the second aspect of the present invention, a third rubber-like elastic portion is provided at a front end side of the vertical wall from the second rubber-like elastic portion with a gap between the second rubber-like elastic portion. Is provided. In the third rubber-like elastic portion, a plurality of third through holes penetrating in the short direction intersecting the longitudinal direction of the third rubber-like elastic portion are arranged along the longitudinal direction of the third rubber-like elastic portion. And the said 3rd through-hole and the 2nd through-hole formed in the 2nd rubber-like elastic part are provided in the position which does not overlap in the height direction of a building. For this reason, rainwater blown from below through the third through hole formed in the third rubber-like elastic portion is prevented / suppressed from entering upward by the second rubber-like elastic portion.

  A building according to the present invention described in claim 3 is provided with the draining structure according to claim 1 or 2 on a waterproof rising wall or foundation on a balcony or a rooftop.

  In the building according to the third aspect of the present invention, the water draining structure is provided on the waterproof rising wall or the foundation on the balcony or on the roof, so that the water draining member constituting a part of the water draining structure is used. Intrusion is prevented, and intrusion of rainwater blowing from below the draining member is prevented / suppressed by the rubber-like elastic body.

  As described above, the draining structure according to the first aspect of the present invention has an excellent effect that the waterproof performance by blowing up rainwater can be secured while suppressing and preventing rainwater from entering the building. Have

  The drainage structure according to the second aspect of the present invention has an excellent effect that the waterproof performance by blowing up rainwater can be improved.

  The building according to the third aspect of the present invention has an excellent effect that the life of the building can be extended and the economic burden on the user can be reduced.

It is sectional drawing which shows a part of balconi to which the draining structure which concerns on this Embodiment was applied. It is an expanded sectional view which shows the state by which the principal part of FIG. 1 was expanded. It is a front view which shows EPDM sponge which comprises a part of draining structure which concerns on this Embodiment. It is a perspective view which shows an example of a building. It is a perspective sectional view showing an outer wall panel in which an extrusion-molded cement board is used.

  Hereinafter, the draining structure according to the present embodiment will be described with reference to the drawings. First, an example of a building will be described.

  As shown in FIG. 4, for example, the building 10 includes a first floor portion 12, a second floor portion 14, a third floor portion 16, and a fourth floor portion 18. The second floor portion 14 is provided with a cantilever-shaped balcony 20 and a bay window 22, and the third floor portion 16 is provided with a roof balcony 24. In addition, a penthouse 26 is provided on the fourth floor portion 18 which is the top floor, and a parapet 28 is erected on the peripheral edge of the fourth floor portion 18.

  For example, an extruded cement board (ECP) is used for the outer wall panel 30 of the building 10. In the building 10, the outer wall panel 30 is divided for each level. In general, as shown in FIG. 5, an outer wall panel 30 using an extrusion-molded cement board is arranged on the outdoor 17 side to form a design surface, and is parallel to the outer wall portion 32. And an inner wall portion 34 disposed on the wall.

  Between the outer wall portion 32 and the inner wall portion 34, a plurality of connecting portions 36 that vertically connect the outer wall portion 32 and the inner wall portion 34 are provided at a predetermined pitch. That is, the outer wall panel 30 has a plurality of hollow portions 38 extending along the height direction at a predetermined pitch. The hollow portion 38 includes a hollow portion 38A of an outer wall panel on the upper floor side (hereinafter referred to as “upper floor side outer wall panel”) 30A and an outer wall panel on the lower floor side (hereinafter referred to as “lower floor side outer wall panel”) 30B. The hollow portions 38B are arranged so as to communicate with each other continuously in the building height direction.

  Further, a horizontal joint 40 is provided between the upper floor side outer wall panel 30A and the lower floor side outer wall panel 30B. In the outer wall panel 30 on the same floor, a vertical space is provided between the outer wall panels 30 adjacent to the left and right. A joint 42 is provided. The vertical joints 42 and the horizontal joints 40 are each filled with an indefinite shape seal 44 to ensure the waterproof performance of the building 10. However, when a so-called seal breakage occurs in the vertical joints 42 and the horizontal joints 40, there is a possibility that water (rain water) may enter the indoor 15 side through the vertical joints 42 and the horizontal joints 40. In such a case, the infiltrated rainwater is guided into the hollow portion 38B of the lower floor side outer wall panel 30B by a water stop function (not shown) provided in the horizontal joint 40.

  On the other hand, as shown in FIG. 1, a floor beam (not shown) that supports the floor portion of the balcony 20 via a connecting member (not shown) is provided on the floor beam 50 that constitutes a part of the floor frame 48 in the room 46. It is fixed. A floor material 52 is provided on the floor beam, and a heat insulating material 54 is provided on the floor material 52. In addition, a bracket 56 having an L-shaped cross-section is bolted to the floor beam 50, and a stay 56A is provided at the longitudinal end of the bracket 56, and the bracket 56 is reinforced by the stay 56A. ing.

  A support member 58 having a substantially rectangular cross section is fixed to the bracket 56. A substantially rectangular water-proof rising wall (hereinafter simply referred to as “waterproof wall”) 60 is provided on the balcony 20 side of the support member 58, and is arranged below the outer wall panel 30. The surface of the waterproof wall 60 and the upper surface of the heat insulating material 54 are covered with a waterproof sheet 62. On the waterproof sheet 62, although not shown, a floor finishing material such as a deck is provided via a bundle material or the like.

  A bracket 64 having an L-shaped cross section is fixed to the upper end surface of the support member 58. The outer wall panel 30 is provided on the outdoor 17 side of the bracket 64, and a water stop member 66 as a wall surface is attached between the bracket 64 and a back surface of the outer wall panel 30 through a water seal (not shown). It has been. The water-stopper 66 prevents rainwater from entering the indoor 15 side, and drains the rainwater guided into the hollow portion 38 of the outer wall panel 30 to the outdoor 17 side.

  Here, the water-stopping member 66 is formed so that the cross-sectional shape is stepped in accordance with the shape of the support member 58 and the waterproof wall 60. Specifically, a vertical wall 66A that can face the back surface of the outer wall panel 30 is provided, and a horizontal wall 66B that can face the lower end surface of the outer wall panel 30 extends from a lower end portion of the vertical wall 66A. Further, a vertical wall 66C that can face the side surface of the support member 58 extends from the front end portion of the horizontal wall 66B, and a horizontal wall 66D that can face the upper end surface of the waterproof wall 60 extends from the lower end portion of the vertical wall 66C. It is extended. And from the front-end | tip part of horizontal wall 66D, the vertical wall 66E which can oppose the side surface of the waterproof wall 60 is extended. The end of the waterproof sheet 62 is adhered to the vertical wall 66E.

(Structure of draining structure)
Next, the structure of the draining structure according to the present embodiment will be described. In the present embodiment, a draining member 68 is disposed so as to be able to face the water-stopping member 66 as a wall surface. The draining member 68 has a substantially inverted L-shaped cross section, and includes a horizontal wall 68A and a vertical wall 68B that can face the horizontal wall 66D and the vertical wall 66E, respectively.

  The horizontal wall 68 </ b> A of the draining member 68 is set to be shorter than the horizontal wall 66 </ b> D of the water-stopping member 66, and a gap 70 is provided between the horizontal wall 68 </ b> A and the vertical wall 66 </ b> C of the water-stopping member 66. ing. Further, a gap 71 is provided between the horizontal wall 68 </ b> A of the draining member 68 and the lower end surface 31 of the outer wall panel 30. A fixed seal 72 folded in half in the height direction of the building 10 is attached to the gap 71 from the outdoor 17 side to prevent intrusion of rainwater from the outdoor 17 side. In addition, the vertical wall 68B of the draining member 68 is set to be longer than the vertical wall 66E of the water-stopping member 66 so that the end portion of the waterproof sheet 62 is not exposed to the outside.

  Further, the draining member 68 is provided with a sponge rubber body 74 as a rubber-like elastic body, and is arranged in a gap 75 formed between the water-stopping member 66 and the waterproof sheet 62. ing. The sponge rubber body 74 includes a sponge rubber 76 as a first rubber-like elastic part, a second sponge rubber 78 as a second rubber-like elastic part, and a third sponge rubber 80 as a third rubber-like elastic part. It is configured to include.

  FIG. 3 shows a sponge rubber body 74 viewed from the direction of arrow A shown in FIG. As shown in FIG. 3, these sponge rubbers 76, 78, and 80 are formed with substantially the same density, and have a long shape provided along the longitudinal direction of the draining member 68. The sponge rubbers 76, 78, and 80 are arranged so as to be substantially parallel to each other with a gap provided. The sponge rubber 76 is provided on the horizontal wall 68A of the draining member 68, the sponge rubbers 78 and 80 are respectively provided on the vertical wall 68B (see FIG. 2) of the draining member 68, and the sponge rubber 80 is provided at the tip of the vertical wall 68B. Has been placed.

  In addition, the sponge rubbers 76, 78, 80 have a through hole 76A as a first through hole, a through hole 78A as a second through hole, and a through hole 80A as a third through hole, respectively. , 80 are arranged in the longitudinal direction. These through holes 76A, 78A, and 80A pass through the short direction that intersects (substantially orthogonal) with the longitudinal direction of the sponge rubbers 76, 78, and 80, respectively, and the sponge rubber 76 is formed by the through holes 76A, 78A, and 80A. , 78 and 80 are divided. The through hole 78A is set to be narrower than the widths of the through holes 76A and 80A, and the widths of the through hole 76A and the through hole 80A are set to be substantially the same.

  Further, the through hole 76A and the through hole 78A are set so as to be displaced in the height direction of the building 10, and the through hole 78A and the through hole 80A are displaced in the height direction of the building 10. Is set to Note that the through hole 76 </ b> A and the through hole 80 </ b> A may be formed at substantially the same position in the height direction of the building 10.

(Operation / effect of draining structure)
As shown in FIGS. 1 and 2, a draining member 68 for preventing rainwater from entering the building 10 is provided on the lower side of the outer wall panel 30 constituting a part of the outer wall 11. The draining member 68 is provided with a sponge rubber body 74, and the sponge rubber body 74 is placed in a gap 75 formed between the draining member 68 and the water stop member 66 facing the draining member 68. Has been placed.

  Here, the draining member 68 includes a horizontal wall 68 </ b> A and a vertical wall 68 </ b> B, and the horizontal wall 68 </ b> A is provided to face the lower end surface 31 of the outer wall panel 30. The vertical wall 68B is bent from the outdoor 17 side end portion of the horizontal wall 68A, and extends along the outer wall surface 33 of the outer wall panel 30. For this reason, the water that has fallen on the horizontal wall 66B along the outer wall surface 33 of the outer wall panel 30 is guided to the vertical wall 68B, through the vertical wall 68B, outside the building 10 (strictly speaking, it is the floor of the balconi 20, The same applies to the following).

  In addition, as described above, the sponge rubber body 74 is provided in the gap 75 between the draining member 68 and the water stopping member 66, so that rainwater guided into the hollow portion 38 of the outer wall panel 30 is stored in the sponge rubber. It is discharged downward by its own weight through a plurality of small holes (not shown) formed in the body 74.

  On the other hand, since the sponge rubber body 74 is provided in the gap 75 between the draining member 68 and the water-stopping member 66, the water flow in the gap 75 is smaller than when nothing is provided in the gap 75. Resistance increases. Therefore, the sponge rubber body 74 can prevent or suppress the intrusion of rainwater that blows from below the draining member 68.

  The above contents will be described in detail. As shown in FIG. 3, the sponge rubber body 74 includes sponge rubbers 76, 78, and 80. The sponge rubbers 76, 78, and 80 each have a long shape provided along the longitudinal direction of the draining member 68, and are arranged so as to be substantially parallel with a gap therebetween. The sponge rubber 76 faces the horizontal wall 68A of the draining member 68, and the sponge rubbers 78 and 80 face the vertical wall 68B of the draining member 68.

  A plurality of through holes 76 A are provided along the longitudinal direction of the sponge rubber 76, and a plurality of through holes 78 A are provided along the longitudinal direction of the sponge rubber 78. The through hole 78A and the through hole 76A are arranged at positions that do not overlap in the height direction of the building 10.

  Therefore, as shown in FIGS. 2 and 3, rainwater flowing through the sponge rubber body 74 is discharged outside the building 10 by its own weight through the sponge rubber 76, the sponge rubber 78, and the sponge rubber 80. That is, when rainwater reaches the sponge rubber 76, the rainwater flows to the sponge rubber 78 side through a plurality of small holes (not shown) formed in the through hole 76A and the sponge rubber 76. Next, the rainwater that has reached the sponge rubber 78 flows through the through holes 78A and a plurality of small holes (not shown) formed in the sponge rubber 78, and the rainwater flows to the sponge rubber 80 side. The rainwater that reaches the sponge rubber 80 is discharged out of the building 10 through a plurality of small holes (not shown) formed in the through hole 80 </ b> A and the sponge rubber 80.

  Thus, by forming the through holes 76A, 78A, and 80A in the sponge rubbers 76, 78, and 80, respectively, the sponge rubber body 74 can be formed as compared with the case where the through holes 76A, 78A, and 80A are not formed. The flowing rainwater is easily discharged out of the building 10. Further, the through holes 76A and 80A formed in the sponge rubbers 76 and 80, respectively, are arranged at substantially the same position in the height direction of the building 10, so that the through holes 76A and 80A are displaced in the height direction of the building 10. Compared with the case where it is arrange | positioned at the position, the water flow resistance in the sponge rubber body 74 can be made small. For this reason, rainwater flowing through the sponge rubber body 74 is further easily discharged out of the building 10.

  On the other hand, rainwater that blows from below the draining member 68 is prevented from entering upward by the sponge rubber 80, but rainwater that has passed through the through-hole 80 </ b> A is prevented from entering upward by the sponge rubber 78.

  Here, since gaps are provided between the sponge rubber 76 and the sponge rubber 78, and between the sponge rubber 78 and the sponge rubber 80, rain water that blows up from below the draining member 68 (sponge rubber body 74) is upward. A predetermined blowing force (arrow B) is required to reach the sponge rubber located at, so that the intrusion upward is further suppressed. As described above, since the sponge rubber body 74 is provided in the gap 75 between the draining member 68 and the water-stopping member 66, water is passed through compared to the case where nothing is provided in the gap 75. Resistance increases. For this reason, in rainy weather, rain water is likely to collect a little in the gaps 70 and 71. However, water pressure is applied to the sponge rubber body 74, and the water that blows from the lower side of the sponge rubber body 74 infiltrates upward. Will be further suppressed.

  That is, in the present embodiment, water intrusion into the building 10 can be suppressed and prevented, and waterproof performance by blowing up rainwater can be ensured.

(Other embodiments)
In the present embodiment, in the sponge rubber body 74 shown in FIG. 3, the sponge rubbers 76, 78, and 80 are formed with substantially the same density. However, the density of the sponge rubbers 76, 78, and 80 is not necessarily the same because it is only necessary to maintain a balance between the drainage of rainwater passing through the sponge rubber body 74 and the suppression of the blow-up from the bottom of the sponge rubber body 74. Need not be. Further, although three sponge rubbers 76, 78, and 80 are used in the sponge rubber body 74, two sponge rubbers may be used.

  In the present embodiment, the sponge rubbers 76, 78, 80 have a long shape provided along the longitudinal direction of the draining member 68, so that they are substantially parallel with a gap therebetween. Has been placed. However, these sponge rubbers 76, 78 and 80 do not necessarily need to be arranged so as to be parallel to each other, and need not be rectangular. For example, although not shown in the figure, it is possible to form an inclined surface or a circular arc surface formed in sponge rubber with the central portion along the longitudinal direction of the main body portion located between the adjacent through holes as the top. good.

  Furthermore, in the present embodiment, the sponge-like sponge rubber body 74 provided with bubbles (small holes) is exemplified as the rubber-like elastic body. However, the rubber-like elastic body is a solid-like rubber-like elastic body without bubbles. May be. As described above, when the rubber-like elastic body is a sponge-like body, the rainwater flowing from above the sponge rubber body 74 is not limited to the through holes 76A, 78A, and 80A formed in the sponge rubbers 76, 78, and 80, respectively. It is guided downward through a plurality of small holes formed in the sponge rubbers 76, 78, 80. However, when the rubber-like elastic body is a solid body, the rain water flowing from above the sponge rubber body 74 (the material here is a solid body) is the sponge rubber 76, 78, Guided downward through through-holes 76A, 78A, and 80A formed in 80 (here, the material is a solid body).

  Moreover, although this embodiment demonstrated the example in which the draining structure was applied to the waterproof wall 60 of the balcony 20 shown in FIG. 1, the said draining structure is not restricted to the application to the waterproof wall 60 of the balcony 20. For example, it may be applied to the rising portion of the parapet 28 (see FIG. 4) provided on the roof, or may be applied to the foundation 82 (see FIG. 4). Thereby, the lifetime of the building 10 can be extended, and the user's economic burden can be reduced. In addition, depending on the place where it is applied, the water stop member 66 is not necessarily required.

  Moreover, although this embodiment demonstrated the example in which the extrusion-molded cement board was used as the outer wall panel 30 of the building 10, an outer wall does not necessarily need to be formed with an extrusion-molded cement board.

  As mentioned above, although one embodiment of the present invention was described, the present invention is not limited to such an embodiment, and one embodiment and various modifications may be used in combination as appropriate, and the gist of the present invention will be described. Of course, various embodiments can be implemented without departing from the scope.

10 Building 11 Exterior Wall 15 Indoor 17 Outdoor 20 Balconi 24 Roof Balconi 28 Parapet (Waterproof Standing Wall)
30 outer wall panel 31 lower end surface 33 outer wall surface 60 waterproof wall (wall surface, waterproof rising wall)
66 Water-stopper (wall surface)
68 Draining member 68A Horizontal wall 68B Vertical wall 74 Sponge rubber body (rubber-like elastic body)
75 Crevice 76 Sponge rubber (first rubber-like elastic part, rubber-like elastic body)
76A Through hole (first through hole)
78 Sponge rubber (second rubber-like elastic part, rubber-like elastic body)
78A Through hole (second through hole)
80 Sponge rubber (third rubber-like elastic part, rubber-like elastic body)
80A through hole (third through hole)
82 Basics

Claims (3)

A draining member provided on the lower side of the outer wall panel constituting a part of the outer wall and preventing water from entering the building;
A rubber-like elastic body provided in the draining member and disposed in a gap formed between the draining member and a wall surface facing the draining member;
With
The draining member is
A lateral wall provided to be opposed to the lower end surface of the outer wall panel;
A vertical wall extending along the outer wall surface of the outer wall panel from the outdoor side end of the horizontal wall;
Comprising
The rubber-like elastic body is
An elongated first rubber-like elastic portion facing the lateral wall;
A plurality of first through holes that are arranged along the longitudinal direction of the first rubber-like elastic portion and pass through the short direction intersecting the longitudinal direction of the first rubber-like elastic portion;
A long second rubber-like elastic part facing the vertical wall and provided with a gap between the first rubber-like elastic part;
In the second rubber-like elastic part, a plurality of the first through holes are arranged at positions that do not overlap in the height direction of the building, and the first through-hole penetrates a short direction that intersects the longitudinal direction of the second rubber-like elastic part. 2 through holes,
Containing drainer structure. A third rubber-like elastic part provided with a gap between the second rubber-like elastic part and the second rubber-like elastic part on the distal end side of the vertical wall from the second rubber-like elastic part;
In the third rubber-like elastic portion, a plurality of the second through holes are arranged at positions that do not overlap in the height direction of the building, and the second through-hole passes through the short direction intersecting the longitudinal direction of the third rubber-like elastic portion. 3 through holes,
The draining structure according to claim 1, comprising:   A building in which the water draining structure according to claim 1 or 2 is provided on a waterproof rising wall or foundation on a balcony or a rooftop.

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