JP5358264B2 - Waterproof material, outer wall joint structure and unit building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a waterproof member mountable easily and capable of exhibiting superior waterproofness at the crossover part between a vertical joint and a lateral joint. <P>SOLUTION: This waterproof member 1 which is attached to the joint between exterior walls 41, 41 disposed adjacent to each other includes a vertical joint water cut-off part 2 in which a long recess 21 of generally U-shape in cross section which is inserted into the vertical joint 42 between the exterior walls adjacent to each other in the lateral direction and flange parts 22, 22 vertically extending from both side edges of the recess are formed of a waterproof material, an apron part 3 which extends in the lateral direction so as to be generally flush with the flange parts at the bottom end of the vertical joint water cut-off part and which is formed of a waterproof material, and a bottom surface part which closes the bottom surface of the vertical joint water cut-off part and arranged continuously with the apron part while ensuring waterproofness. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a waterproof member attached to a joint between adjacent outer walls, a joint structure of an outer wall to which the waterproof member is attached, and a unit building including the joint structure.

  Conventionally, a unit building in which a plurality of building units manufactured in a factory are stacked vertically and horizontally is known. Since this building unit is attached to the outer wall at the factory, a seam between the outer walls is generated between adjacent building units. Therefore, waterproofing is performed by inserting a gasket or the like at the joint (see Patent Documents 1 and 2).

  That is, when building units are stacked vertically and horizontally, vertical joints are generated between building units adjacent in the horizontal direction, and horizontal joints are generated at the lower edge or upper edge of the building units. A gasket is inserted into the vertical joint, and the horizontal joint is covered with a waterproof sheet for waterproofing.

Japanese Patent Laid-Open No. 7-292791 JP-A-6-306963

  However, in such a unit building configuration, there are always places where the vertical joints and the horizontal joints intersect, but it takes time and effort to perform a waterproof process with high waterproofness at the intersections.

  In particular, when a new building unit is installed adjacent to an existing house, a seam will be generated between the outer wall of the existing house that has been exposed to the outside. The work man-hours such as removing the outer wall of the existing house and then waterproofing it increase.

  Therefore, the present invention includes a waterproof member that is easy to mount and excellent in waterproofness at the intersection of the vertical joint and the horizontal joint, a joint structure of the outer wall to which the waterproof member is mounted, and a joint structure thereof The purpose is to provide a unit building.

  In order to achieve the above object, the waterproof member of the present invention is a waterproof member attached to a seam between adjacent outer walls, and is inserted into a vertical joint between outer walls adjacent in the lateral direction. A vertical joint water-stopping portion in which a recess having a substantially U-shape in plan view and flange portions extending in the vertical direction on both side edges of the concave portion are formed of a waterproof material; An apron portion formed of a waterproof material extending in the lateral direction so as to be substantially flush with the flange portion at the lower end, and the bottom surface of the vertical joint water-stopping portion are closed, and the apron portion and the waterproof property are secured. And a bottom surface portion that is continuous in a state in which it is formed.

  Here, the said vertical joint water stop part may be formed in the length which can be inserted over the full length of the said vertical joint.

  Moreover, the structure by which the adhesion layer was formed in the surface by the side of the said outer wall near the corner | angular part of the said recessed part of the said vertical joint water stop part and the said flange part may be sufficient. Furthermore, the structure by which the adhesion layer was formed in the back surface of the said apron part may be sufficient.

  The seam structure of the outer wall according to the present invention is a seam structure of the outer wall to which the above-described waterproof member is attached, and the concave portion of the vertical joint water-stopping portion is inserted into the vertical joint between the laterally adjacent outer walls. The apron portion is laminated on a horizontal joint waterproof sheet extending along the lower edge of the outer wall, and a long gasket is inserted into the recess.

  Furthermore, the unit building of the present invention is a unit building constructed by adjoining a plurality of building units, wherein the joint structure of the outer wall is formed at the joint between the outer walls.

  The waterproof member of the present invention configured as described above includes a vertical joint water-stopping portion in which a concave portion to be inserted into the vertical joint is formed of a waterproof material, and an apron of the waterproof material that extends laterally at the lower end thereof. Department. Moreover, between the vertical joint water stop part and the apron part is continued in a state in which waterproofness is ensured by the bottom part.

  For this reason, it is possible to construct a seam structure having high waterproofness including a portion where the vertical joint and the horizontal joint intersect with each other only by attaching the waterproof member to the joint between the outer walls.

  Moreover, a waterproof structure can be formed at a time, without producing a connection part in a vertical joint by forming the vertical joint water stop part in the length which can be inserted over the full length of a vertical joint.

  Furthermore, if the adhesive layer is formed around the flange portion of the vertical joint water stop portion, the vertical joint water stop portion inserted into the vertical joint can be easily fixed to the outer wall side. Moreover, if the adhesion layer is formed in the back surface of the apron part, an apron part can be easily fixed to the outer wall side.

  Moreover, a vertical joint can be made into a double waterproof structure by inserting a gasket in the recessed part of a vertical joint water stop part. Further, by laminating the apron portion on the horizontal joint waterproof sheet, a waterproof structure in which the horizontal joint and the vertical joint are continuous can be obtained.

  In addition, with such a seam structure using waterproof members, the waterproof property of a unit building constructed by combining building units or a unit building extended by adding a building unit can be easily increased with less man-hours. be able to.

It is a perspective view explaining the structure of the waterproof member of embodiment of this invention. It is a perspective view explaining the structure of a unit building. It is a top view explaining the structure of a waterproof member. It is a front view explaining the structure of a waterproof member. It is a side view explaining the structure of a waterproof member. It is explanatory drawing of the process of inserting a waterproof member in the vertical joint between outer walls. It is explanatory drawing of the process of inserting a gasket in the waterproof member inserted in the vertical joint between outer walls. It is a mimetic diagram explaining two kinds of extension patterns of a unit building.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view illustrating the configuration of the waterproof member 1 according to the present embodiment. FIG. 2 is a perspective view illustrating the configuration of a unit building 40 in which a seam structure is provided by the waterproof member 1.

  First, the configuration of the unit building 40 will be described with reference to FIG. 2. Such a unit building 40 is obtained by joining a plurality of building units 4,. Built by.

  In addition, the building unit 4 is formed into a box-shaped frame structure (frame structure) by, for example, steel columns disposed at four corners and steel beams spanned between the upper ends and lower ends of the columns. It is formed.

  Furthermore, the outer wall 41 is formed in the side surface exposed outside the building unit 4 by attaching an outer wall panel in a factory. For this reason, a vertical joint 42 is formed between the side edges of the outer walls 41, 41 between the building units 4, 4 adjacent in the horizontal direction. A horizontal joint 43 is formed between the lower edge of the outer wall 41 and the upper edge of the outer wall 41 between the building units 4 and 4 adjacent in the vertical direction. Further, a horizontal joint 44 is formed between the lower edge of the building unit 4 installed on the first floor and the foundation (not shown).

  Therefore, the vertical joint 42 is provided with a waterproof vertical joint 10, and the horizontal joints 43 and 44 are provided with a waterproof horizontal joint 11, 12. Here, the vertical seam 10 and the horizontal seam 11 (12) are collectively referred to as a seam structure.

  As shown in FIG. 1, the waterproof member 1 constituting this joint structure has a vertical joint water stop formed with a concave portion 21 inserted into the vertical joint 42 and flange portions 22, 22 extending on both side edges thereof. The bottom part which continues the part 2 and the apron part 3 extended in the horizontal direction in the lower end of this vertical joint water stop part 2, and the vertical joint water stop part 2 and the apron part 3 with the waterproof property ensured 31.

  In the vertical joint water-stopping portion 2, the concave portion 21 and the flange portions 22 and 22 are integrally formed of a waterproof material obtained by forming a synthetic resin material such as polypropylene into a thin plate shape. The vertical joint waterproofing part 2 of this Embodiment is formed in the length substantially the same as the height of the building unit 4. FIG.

  The concave portion 21 of the vertical joint water-stopping portion 2 is a long member that is inserted into the gap between the vertical joints 42 between the outer walls 41 and 41 adjacent in the lateral direction, and is substantially omitted in plan view as shown in FIG. It is formed in a U shape, for example, a pentagon.

  The flange portion 22 is bent in a direction substantially orthogonal to the side edge of the recess 21 and extends in the vertical direction in the same manner as the recess 21. That is, the vertical joint water-stopping portion 2 in which the flange portions 22 and 22 are extended on both side edges of the concave portion 21 is formed in a substantially Ω-shape in plan view. Furthermore, the flange portion 22 extends along the surface of the outer wall 41 when the vertical joint water-stopping portion 2 is inserted into the vertical joint 42.

  Further, as shown in FIGS. 3 and 5, an adhesive layer 23 is laminated along the side edge of the flange portion 22 on the outer corner side of the corner portion between the concave portion 21 and the flange portion 22. The adhesive layer 23 is formed of a waterproof material having adhesive strength such as butyl rubber.

  Since the material itself has adhesiveness, the adhesive layer 23 can be fixed to the outer surface of the recess 21 and also fixed to the outer wall 41 side exposed to the vertical joint 42 like a double-sided tape. be able to. For this reason, the release paper 23a is stuck on the adhesive layer 23 before mounting.

  Moreover, as shown in FIGS. 3 and 5, the apron portion 3 suspended from the lower end of the vertical joint water-stopping portion 2 is substantially flush with the flange portions 22, 22, so that the back side of the flange portions 22, 22 is present. Is provided.

  The apron portion 3 is formed in a sheet shape by a waterproof material such as a rubberized cloth in which a reinforcing material such as vinylon fiber is laminated on the back surface of a film-like butyl rubber.

  This apron part 3 is extended in the horizontal direction substantially orthogonal to the longitudinal direction of the vertical joint water stop part 2. That is, the apron portion 3 extends along the lower edge of the outer wall 41.

  Then, as shown in FIGS. 4 and 5, an adhesive layer 32 having adhesive strength such as butyl rubber is laminated on the upper edge of the back surface of the apron portion 3. Further, a release paper 32 a is attached to the adhesive layer 32.

  Moreover, the bottom face part 31 which makes the vertical joint water stop part 2 and the apron part 3 continue is formed by extending the center vicinity of the upper edge of the apron part 3 to the vertical joint water stop part 2 side.

  The bottom surface portion 31 is formed integrally with the apron portion 3 and is formed on an inclined surface that becomes higher from the apron portion 3 side toward the back side of the concave portion 21 as shown in FIG.

  Further, as shown in FIGS. 4 and 5, an attachment piece 34 that is raised along the outer peripheral edge of the lower end of the recess 21 is provided on the peripheral edge of the bottom surface portion 31. The mounting piece 34 is fixed to the recess 21 by winding the fixing tape 33 around the mounting piece 34.

  The bottom surface portion 31 configured in this manner blocks the bottom of the concave portion 21 with an inclined surface and continues the vertical joint water-stopping portion 2 and the apron portion 3 in a state in which waterproofness is ensured.

  Next, the construction method of the joint structure of the outer wall 41 to which the waterproof member 1 of the present embodiment is mounted will be described with reference to FIGS.

  FIG. 6 is an enlarged perspective view of a portion where the vertical joint 42 and the horizontal joint 43 intersect. As shown in FIG. 6, there is a gap of the vertical joint 42 between the outer walls 41, 41 adjacent in the horizontal direction, and there is a gap of the horizontal joint 43 between the outer walls 41, 41 adjacent in the vertical direction.

  Here, the horizontal joint 43 is covered with the horizontal joint waterproof sheet 5 suspended from the lower edge of the upper outer wall 41. The horizontal joint waterproof sheet 5 is formed in a band shape by a waterproof material such as a rubberized cloth in which the above-described butyl rubber and vinylon fiber are laminated.

  Then, the release papers 23 a and 23 a of the vertical joint water-stopping part 2 are peeled off from the adhesive layers 23 and 23, and the lower end of the vertical joint water-stopping part 2 is arranged immediately above the intersection 13 between the vertical joint 42 and the horizontal joint 43. Thus, the alignment is performed, and the concave portion 21 is inserted into the vertical joint 42.

  The insertion of the concave portion 21 is performed until the back surfaces of the flange portions 22 and 22 come into contact with the surfaces of the outer walls 41 and 41 on both sides of the vertical joint 42. If it will be in this state, the adhesion layers 23 and 23 of the both-sides edge of the recessed part 21 will be adhere | attached on the outer walls 41 and 41 side, respectively.

  Further, the release paper 32a of the apron portion 3 is peeled off from the adhesive layer 32, and the apron portion 3 is adhered to the surfaces of the horizontal joint waterproof sheets 5 and 5 on both sides of the vertical joint 42. Furthermore, as shown in FIG. 7, the surplus part 3a of the apron part 3 which protrudes below from the lower edge of the horizontal joint waterproof sheet | seat 5,5 is cut off with a cutter. The caulking portion 6 is formed by filling the upper edges of the horizontal joint waterproof sheets 5 and 5 on both sides of the vertical joint 42 with a caulking material 61 such as modified silicone.

  Further, the gasket 7 having the same length is inserted into the recess 21 of the waterproof member 1 mounted between the outer walls 41 and 41. The gasket 7 is formed of highly weatherable synthetic rubber such as EPDM (ethylene-propylene-diene-terpolymer), natural rubber, soft urethane resin, soft vinyl chloride resin, acrylic resin, or the like.

  As for the joint structure of the outer wall 41 constructed in this way, the vertical joint 10 is formed by the vertical joint water-stopping portion 2 and the gasket 7, and the horizontal joint 12 is formed by the horizontal joint waterproof sheet 5 and the apron portion 3, The intersection 13 where the vertical seam 10 and the horizontal seam 12 intersect also has a waterproof structure by the waterproof member 1.

  Next, the waterproof member 1, the joint structure of the outer wall 41, and the operation of the unit building 40 according to the present embodiment will be described.

  The waterproof member 1 according to the present embodiment configured as described above has a vertical joint water-stopping portion 2 in which the concave portion 21 to be inserted into the vertical joint 42 is formed of a waterproof material, and is extended in the lateral direction at the lower end thereof. And an apron portion 3 of a waterproof material. Moreover, between the vertical joint water stop part 2 and the apron part 3 is continued in the state in which waterproofness was ensured by the bottom face part 31.

  For this reason, it is necessary to construct a highly waterproof joint structure including the intersection 13 where the vertical joints 42 and the horizontal joints 43 (44) intersect only by attaching the waterproof member 1 to the joint between the outer walls 41 and 41. Can do.

  Further, by forming the vertical joint water-stopping portion 2 to a length that can be inserted over the entire length of the vertical joint 42, a continuous waterproof structure having no connection portion on the vertical joint 42 can be formed at a time.

  Further, if the adhesive layers 23, 23 are formed in the vicinity of the flange portions 22, 22 of the vertical joint water-stopping portion 2, the adhesive layers 23, 23 can be attached only by inserting the vertical joint water-stopping portion 2 into the vertical joint 42. The vertical joint water-stopping part 2 can be easily fixed to the outer walls 41 and 41 side.

  Further, if the adhesive layer 32 is formed on the back surface of the apron portion 3, the apron portion 3 can be easily fixed to the outer wall 41 side simply by peeling the release paper 32 a and pressing the apron portion 3 against the horizontal joint waterproof sheet 5. be able to.

  Moreover, the longitudinal seam 10 can be made into a double waterproof structure by inserting the gasket 7 into the concave portion 21 of the vertical joint water stop portion 2. Further, by laminating the apron portion 3 on the horizontal joint waterproof sheet 5, the horizontal joint 11 (12) and the vertical joint 10 can be made into a continuous waterproof structure.

  In addition, by using such a waterproof member 1, a highly waterproof joint structure can be easily formed for a unit building 40 constructed by transporting building units 4,. Can be built.

  Furthermore, this waterproof member 1 can be used also when extending an existing house. FIG. 8 shows unit buildings 40A and 40B having two extension patterns.

  First, in the unit building 40A shown in FIG. 8A, two building units 4A and 4A are added to the corners of an existing house constructed in an L shape by the building units 4,. It is extended by doing.

  When performing this extension, the waterproof member 1 is mounted between the outer wall of the existing building unit 4 and the outer wall of the additional building unit 4A. Specifically, the waterproof members 1,... Are arranged at the intersections 13,... Shown in FIG.

  Further, in the unit building 40B shown in FIG. 8 (b), two building units 4B are provided in order to add a solarium or the like adjacent to the first floor of the existing house constituted by the building units 4,. , 4B are added.

  When such extension is performed, the waterproof member 1 is attached between the outer wall of the existing building unit 4 and the outer wall of the building unit 4B and between the outer walls of the building units 4B and 4B. Specifically, the waterproof members 1,... Are arranged at the intersections 13,... Shown in FIG.

  As described above, by using the waterproof member 1 of the present embodiment, even when the building unit 4A (4B) is added and the unit building 40A (40B) is added to the unit building 40A (40B), the waterproof property of the joint structure can be easily reduced with less man-hours. Can be increased.

  The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration is not limited to this embodiment, and design changes that do not depart from the gist of the present invention are not limited to this embodiment. Included in the invention.

  For example, in the above-described embodiment, the joint structure of the outer walls of the unit buildings 40, 40A, 40B has been described. However, the present invention is not limited to this, and the present invention is also applied to a house constructed by a conventional construction method. be able to.

  Moreover, in the said embodiment, although the waterproof member 1 provided with the vertical joint water stop part 2 of the length substantially the same as the vertical joint 42 was demonstrated, it is not limited to this and is comparable as the apron part 3. A waterproof member formed with a long vertical joint waterproof part is attached to the intersection 13, a separate vertical joint waterproof material is inserted into the remaining part of the vertical joint 42, and the lower part is used as the vertical joint waterproof part. It is possible to construct the longitudinal seam 10 that is secured to be waterproof by being overlapped and joined to the upper part.

  Furthermore, in the said embodiment, although the adhesion layers 23 and 23 were formed in the both-sides edge of the recessed part 21, it is not limited to this, The adhesion layers 23 and 23 are formed in the back surface of the flange parts 22 and 22. You can also.

DESCRIPTION OF SYMBOLS 1 Waterproofing member 10 Longitudinal joint 11,12 Horizontal joint 13 Crossing part 2 Vertical joint water stop part 21 Recessed part 22 Flange part 23 Adhesive layer 3 Apron part 31 Bottom part 32 Adhesive layer 4, 4A, 4B Building unit 5 Horizontal joint waterproof sheet 7 Gasket 40, 40A, 40B Unit building 41 Outer wall 42 Vertical joint 43, 44 Horizontal joint

Claims (7)

A waterproof member attached to a seam between adjacent outer walls,
A long U-shaped concave portion in plan view inserted in a vertical joint between outer walls adjacent in the lateral direction and flange portions extending in the vertical direction on both side edges of the concave portion are formed of a waterproof material. Vertical joint water stop,
An apron portion formed of a waterproof material extending in a lateral direction so as to be substantially flush with the flange portion at the lower end of the vertical joint water stop portion;
A bottom portion that closes the bottom surface of the vertical joint water-stopping portion and that is continuous with the apron portion and a waterproof property ;
The vertical joint waterproof part and the bottom part are separate members, and a mounting piece is provided on the periphery of the bottom part along the outer periphery of the lower end of the recess. Element. The waterproof member according to claim 1, wherein the vertical joint water-stopping portion is formed of a synthetic resin material, and the apron portion and the bottom surface portion are formed of a waterproof rubber material. The waterproof member according to claim 1 or 2 , wherein the vertical joint water stop portion is formed to have a length that can be inserted over the entire length of the vertical joint. The adhesive layer is formed in the surface by the side of the said outer wall near the corner | angular part of the said recessed part and the said flange part of the said vertical joint water stop part, The Claim 1 thru | or 3 characterized by the above-mentioned. The waterproofing member as described. The waterproof member according to any one of claims 1 to 4 , wherein an adhesive layer is formed on a back surface of the apron portion. A seam structure of an outer wall to which the waterproof member according to any one of claims 1 to 5 is mounted,
The apron portion is laminated on a horizontal joint waterproof sheet extending along the lower edge of the outer wall, while the concave portion of the vertical joint water-stopping portion is inserted into the vertical joint between the outer walls adjacent in the lateral direction,
An outer wall seam structure, wherein a long gasket is inserted into the recess. A unit building constructed by adjoining multiple building units,
The unit building according to claim 6 , wherein the joint structure of the outer wall according to claim 6 is formed at a joint between the outer walls.

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