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JP-2026074816-A - Base material forming bag, base material, exterior wall, and method for forming base material

JP2026074816AJP 2026074816 AJP2026074816 AJP 2026074816AJP-2026074816-A

Abstract

[Problem] To provide a base material forming bag, base material, exterior wall, and method for forming a base material that can form between the outer wall member and the inner wall member after the construction of the exterior wall. [Solution] The building 10 comprises an outer wall member 11 having a through hole 11h, an inner wall member 12 located on the indoor side of the outer wall member 11, and a base material 13 provided between the outer wall member 11 and the inner wall member 12. The base material 13 comprises a base material forming bag 14 and a filler material 15. The base material forming bag 14 comprises a main body portion 40 and a cylindrical injection portion 42. The main body portion 40 is flexible. The main body portion 40 is filled with the filler material 15. The injection portion 42 extends from the main body portion 40 and is connected to the inside of the main body portion 40. The main body portion 40 has a drainage structure that guides water that has entered between the outer wall member 11 and the inner wall member 12 downwards. [Selection Diagram] Figure 1

Inventors

  • 山口 洋輝

Assignees

  • 積水ハウス株式会社

Dates

Publication Date
20260507
Application Date
20241021

Claims (8)

  1. A base material forming bag for forming a base material between an outer wall member having a through hole and an inner wall member located on the indoor side of the outer wall member, A main body that is flexible and filled with a filler, A cylindrical injection section extending from the main body and connected to the main body, Equipped with, The main body is a base material forming bag having a drainage structure that guides water that has entered between the outer wall member and the inner wall member downwards.
  2. The main body portion has a first opposing surface facing the outer wall member and a second opposing surface facing the inner wall member, The base material forming bag according to claim 1, wherein the main body portion has a projection that protrudes from at least one of the first opposing surface and the second opposing surface as a drainage structure.
  3. The base material forming bag according to claim 2, wherein the main body further has an upper surface that slopes downward toward the surface on which the projection is provided, as part of the drainage structure, among the first and second opposing surfaces.
  4. The main body portion has a first opposing surface facing the outer wall member, a second opposing surface facing the inner wall member, and two sides connecting the first opposing surface and the second opposing surface. The base material forming bag according to claim 1, wherein the main body portion has an upper surface that slopes downward toward at least one of the two sides as a drainage structure.
  5. The length of the injection section is greater than the thickness of the outer wall member. The base material forming bag according to claim 1, wherein the injection portion is provided with a cutting promotion portion in the direction in which the injection portion extends.
  6. A base material forming bag according to any one of claims 1 to 5, The filling material filled in the main body of the base material forming bag, A base material equipped with these features.
  7. An outer wall member having a through hole, An inner wall member provided on the indoor side of the outer wall member, The base material according to claim 6 is provided between the outer wall member and the inner wall member, Exterior walls equipped with these features.
  8. A method for forming a base material according to claim 6, The process of forming a through hole in the outer wall member, The insertion step involves inserting the main body portion, in a folded state, through the through hole between the outer wall member and the inner wall member, A filling step of filling the main body with the filler material through the injection section, A method for forming a base material that includes [a specific component].

Description

This disclosure relates to a substrate forming bag, a substrate, an exterior wall, and a method for forming the substrate. The exterior wall described in Patent Document 1 comprises an outer wall member (siding in the same document) and an inner wall member (the outer panel of the wall member in the same document) located on the indoor side of the outer wall member. A gap is provided between the outer wall member and the inner wall member. Japanese Patent Publication No. 2003-247667 This is a cross-sectional view of the outer portion of the exterior wall.This is a perspective view showing the base material forming bag before construction.This is a cross-sectional view showing the through-hole formation process and insertion process of the method for forming the base material.This is a cross-sectional view showing the filling process of the method for forming the base material.This is a cross-sectional view showing the cutting process for forming the base material.This is a perspective view showing the base material forming bag in the modified example. Referring to Figures 1 to 5, the base material forming bag 14, base material 13, exterior wall 10, and the method of forming the base material 13 in this embodiment will be described. The base material 13 in this embodiment is formed to attach ancillary components (not shown) to the exterior wall 10 after its construction. <Exterior wall 10> As shown in Figure 1, the exterior wall 10 of the building comprises an exterior wall member 11, an interior wall member 12, and a base material 13. The exterior wall member 11 is made of exterior wall panels such as siding. The interior wall member 12 is made of base panels such as structural plywood. The interior wall member 12 is located on the interior side of the exterior wall member 11. The interior wall member 12 is provided at a predetermined distance from the exterior wall member 11. A ventilation layer 10a is provided between the exterior wall member 11 and the interior wall member 12. Through holes 11h are provided in the exterior wall member 11. The base material 13 is provided between the exterior wall member 11 and the interior wall member 12. That is, the base material 13 is provided in the ventilation layer 10a. Although not shown, the exterior wall 10 further comprises a column located on the interior side of the interior wall member 12, and an interior wall member located on the interior side of the column. <Undercoat material 13> The base material 13 comprises a base material forming bag 14 and a filler material 15. The base material forming bag 14 is made of, for example, a sheet of rubber, polypropylene (PP), or polyethylene (PE). The filler material 15 is made of foamed resin or rubber. In this embodiment, the filler material 15 is made of foamed urethane. The base material forming bag 14 has a main body portion 40. The main body portion 40 is provided between the outer wall member 11 and the inner wall member 12. The main body portion 40 is sandwiched between the outer wall member 11 and the inner wall member 12. The main body portion 40 is filled with a filler material 15. The main body portion 40 is flexible. Therefore, the main body portion 40 is foldable before the filler material 15 is filled in (see Figure 3). As shown in Figures 1 and 2, the main body 40 of this embodiment has an upper surface 40a, a lower surface 40b, a first opposing surface 40c, a second opposing surface 40d, and two side surfaces 40e. The first opposing surface 40c faces the indoor side surface 11a of the outer wall member 11. The second opposing surface 40d faces the outdoor side surface 12a of the inner wall member 12. The two side surfaces 40e connect the first opposing surface 40c and the second opposing surface 40d. In the following description, the horizontal direction along the first opposing surface 40c and the second opposing surface 40d is defined as the width direction of the main body 40, and the direction perpendicular to the first opposing surface 40c and the second opposing surface 40d is defined as the thickness direction of the main body 40. The main body 40 has a drainage structure that guides water that has entered between the outer wall member 11 and the inner wall member 12 downwards. In this embodiment, the main body 40 has a plurality of projections 41 that protrude from the first opposing surface 40c as part of its drainage structure. The plurality of projections 41 are arranged with spacing in the vertical direction and in the width direction of the main body 40. Furthermore, in this embodiment, the main body 40 has an upper surface 40a that is inclined to be located downwards as it approaches the first opposing surface 40c as part of its drainage structure. As shown in Figure 1, the projections 41 provide a gap G between the portion of the first opposing surface 40c of the main body 40 where the projections 41 are not provided and the indoor-side surface 11a of the outer wall member 11. The tip of