JP4804069B2 - Seal structure of joints on the outer wall of the building - Google Patents

Description

  The present invention relates to a joint sealing structure formed between outer wall panels of a building outer wall.

  1 to 3 show an outer wall of a building and its structure. An outer wall panel 2 is attached on an outer wall base material 1, and rubber or resin is applied to a vertical joint 3 formed by the outer wall base material 1 and the outer wall panel 2. A gasket 4 made of metal is loaded, and a sealing material 6 is filled in the horizontal joint 5.

  The filling of the sealing material 6 into the joints is conventionally performed by manually pushing in, but from the viewpoint of work efficiency, it is desirable to compress and fill using a filling device. However, when compressed and filled, the sealing material 6 is filled more than necessary up to the joint bottom at the cross section of the vertical joint and the horizontal joint, or it is filled up between the lips of the gasket 4 and unnecessary portions under the gasket. If the filling amount is reduced to a certain amount, the sealing material intrudes into the unnecessary portion in the cross part as a result, so that the adhesion to the gasket end face is insufficient and the reliability of the seal is impaired. Become.

  An object of the present invention is to install a gasket on a vertical joint formed between outer wall panels of a building outer wall and a cross joint where both joints intersect, and a horizontal joint including the cross section. An object of the present invention is to provide a seal structure in which a sealant can be compressed and filled without impairing the reliability of the seal in a seal structure in which a sealant is filled in the ground.

  In the invention according to claim 1, a gasket is loaded on a vertical joint formed between the outer wall panels of the building outer wall and a cross joint where both joints intersect between the horizontal joints, and the cross part is A sealing structure in which a sealing material is filled in a transverse joint including the sealing material receiving portion is provided with a sealing material receiving portion for receiving the sealing material in the cross portion at the gasket end.

  The invention according to claim 2 is characterized in that the sealing material receiving portion according to claim 1 is a film or sheet that extends perpendicularly to the gasket and along the other joint.

  The film or sheet of the present invention is formed by, for example, forming a protruding piece at the center of one side and bonding the protruding piece to the gasket end using an adhesive or adhesive tape, or by heat-sealing with a heater. Can be installed. The width of the film or sheet is preferably the same width as the other joint, but may be slightly narrower or wider than the joint width.

  According to a third aspect of the present invention, the gasket according to the first aspect of the present invention has a plurality of upper and lower lips, and the sealing material receiving portion is on the lower side, preferably the lowermost rear lip is fixed in the length direction of the gasket. It is formed by extending the length.

  The invention according to claim 4 is the invention according to claim 2 or 3, wherein the sealing material receiving part is a material that does not adhere to the sealing material, or a film or sheet of a material that does not adhere to the sealing material to the sealing material receiving part. It is characterized by sticking.

  In the present invention, examples of the material that does not adhere to the sealing material include polyethylene and polyacetal when a urethane-based sealing material or a modified silicone-based sealing material is used as the sealing material.

  The invention according to claim 5 is the invention according to claims 1 to 4, wherein the gasket has a plurality of upper and lower lips, and the sealing material enters between at least the outer surface lip and the lower lip at the gasket end. It is characterized in that a receiving material is provided to prevent this.

  According to the invention of claim 1, even if the sealing material is compressed and filled, the sealing material is not blocked by the sealing material receiving portion and is not filled up to an unnecessary portion below the cross portion or the gasket. By performing a certain amount of filling as much as possible, the sealing material can be secured in close contact with the sealing material receiving portion and the gasket end face. Further, when the sealing material filled in the horizontal joint is filled on the sealing material receiving portion, the gasket end is prevented from being lifted, and the gasket can be prevented from being lifted from the joint.

  The sealing material receiving portion of the invention according to claim 2 can be easily attached to the gasket by adhesion or heat fusion using a heater, and the sealing material receiving portion of the invention according to claim 3 is an existing one. This gasket can be easily obtained by cutting out the central pillar portion and unnecessary lips on both sides of the gasket from the gasket end to a certain length.

It is desirable that the sealing material is bonded to the gasket end and the joint width is expanded due to shrinkage of the outer wall panel. If the sealing material is bonded to the sealing material receiving part and the upper and lower gasket end faces, the sealing material and the sealing material receiving part There is a possibility that the adhesive force is superior to the adhesive force between the sealing material and the gasket end surface, and a gap is formed between the gasket end surface. In this respect, when the sealing material is not bonded to the sealing material receiving portion as in the invention according to claim 4, even if the joint width is increased, the adhesion to the gasket end surface is maintained. Thus, there is no gap between the gasket end surface and the sealing effect at the cross portion can be maintained.

  According to the invention of claim 5, when the sealing material is compressed and filled, the sealing material is not filled between the lip on the outer surface and the lower lip which is easily filled with the sealing material, and the sealing material is the receiving material. The reliability of the sealing performance can be further improved by increasing the sealing pressure on the gasket end face due to the close contact. Further, even if rainwater penetrates through the lip on the outer surface and enters the lip, it can be stopped by the receiving material.

  Hereinafter, the gasket used for the seal structure of embodiment of this invention is demonstrated with drawing. In the figure, the same reference numerals are given to the same structural parts as those shown in FIGS.

  FIG. 4 shows a gasket 11 and a sheet 12 attached to the gasket end and serving as a sealing material receiving portion. The gasket 11 is similar to the gasket 4 shown in FIG. The outer surface lip 14 is formed to project toward the side, the middle lip 15 is formed to project from the middle of the column 13 toward the side, and the lower end of the column 13 is formed to project toward the side. It is made of rubber or resin which is composed of a back lip 16 and is further loaded between the outer surface lip 14 and the middle lip 15 on both sides of the column part, and further between the middle lip 15 and the back lip 16 without any gaps, and is bonded with an adhesive. Although not shown in the figure, a double-sided adhesive tape is attached to the bottom surface of the back lip 16. In addition, as the receiving material, a film attached to the gasket end face so as to cover the space between the outer surface lip 14 and the middle lip 15 instead of the foam 17 may be used.

  On the other hand, the sheet 12 serving as a sealing material receiving portion is made of rubber or resin having the same width as the horizontal joint 5 filled with the sealing material 6 as shown in FIG. For example, when the sealing material 6 is a urethane-based or modified silicone-based sealing material, it is a polyethylene or polyacetal sheet, and a projecting piece 18 is formed to protrude at the center of one side. The sheet 19 shown in FIG. 5 is made of rubber, resin, or cloth having adhesiveness to the sealing material 6, and a film 20 made of polyethylene or polyacetal is pasted on the surface.

  At the time of construction, the projecting piece 18 of the sheet 12 is adhered to the bottom surface of the back lip of the gasket 11 with a double-sided adhesive tape, and the sheet 12 is attached on the extension of the gasket end in a direction perpendicular to the gasket 11 to form a sealing material receiving portion. After that, as shown in FIG. 6, the vertical joint 3 is loaded so that the gasket end face is aligned with the lower end face of the outer wall panel 2. Then, the center part of the sheet is pushed into the cross part 7 (see FIG. 1) of the vertical joint 3 and the horizontal joint 5 so as to be at the same level as the back lip 16, and both sides of the sheet 12 are within the horizontal joints on both sides of the cross part. Extend and push onto outer wall substrate 1. Although not shown, after the gasket 11 is loaded on the lower vertical joint 3 with the cloth part 7 interposed therebetween, the sealing material 6 is compressed and filled into the horizontal joint 5 including the cross part 7 using a filling device. . FIG. 7 shows a cross section taken along line 7-7 of FIG. 6 filled with a sealing material. In the cross part 7, the sealing material 6 faces the cross part 7 as a gasket end face, a foam 17 and a sealing material receiving part. The portion surrounded by the sheet 12 is filled and sealed in close contact therewith.

  A gasket 21 shown in FIG. 8 is obtained by cutting the end portion of the gasket 11 shown in FIG. 4 to a predetermined length from the end face while leaving the back lip 16, and the outer surface lip 14 and the middle lip 15 are the same as the gasket 11 described above. A foam 23 as a receiving material made of rubber or resin is loaded and attached between the middle lip 15 and the inner lip 16, and the inner lip 16 protruding a certain length becomes a sealing material receiving portion 22. Yes.

  FIG. 9 is a view in which a film 24 made of polyethylene or polyacetal is attached to the sealing material receiving portion 22 of the gasket 21 shown in FIG.

  FIG. 10 shows a state in which the gasket 21 shown in FIG. 8 is mounted on the vertical joint 3. FIG. 11 shows the gasket end face where the sealing material 6 faces the cross part 7, the foam and the sealing material receiver in the cross part. The aspect with which the location enclosed by the part 22 was filled is shown.

  The present invention is applied to a joint structure of joints formed in the vertical and horizontal directions between outer wall panels of a building outer wall.

The front view of the principal part of a building outer wall. FIG. 2 is a sectional view taken along line 2-2 in FIG. 1. Sectional view along line 3-3. The perspective view of a gasket edge part and a sheet | seat. The perspective view which shows another example of a sheet | seat. The perspective view of the principal part which attached the gasket to the vertical joint. FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. The perspective view of the principal part of a gasket. The perspective view of the principal part of another example of a gasket. The perspective view of the principal part which attached the gasket to the vertical joint. FIG. 11 is a sectional view taken along line 11-11 in FIG. 10;

Explanation of symbols

1..Outer wall base material 2..Outer wall panel 3..Vertical joints 4, 11, 21..Gasket 5..Horizontal joint 6..Sealing material 7..Cross part 12, 19..Sheet 13 .. 14 ·· Outer surface lip 15 · Inside lip 16 · Back lips 17 and 23 · · Foam 18 · · Projection pieces 20 and 24 · · Film 22 · · Sealing material receiver

Claims (5)

  Among the vertical joint 3 formed between the outer wall panels 2 of the building outer wall and the horizontal joint 5, the gaskets 4, 11, and 21 are loaded on the vertical joint 3 excluding the cross portion 7 where both joints 3 and 5 intersect. A sealing structure in which the sealing material 6 is filled in the horizontal joint 5 including the cross portion 7, and sealing material receiving portions 12, 19, 22 for receiving the sealing material 6 in the cross portion 7 are provided at the gasket end. A seal structure characterized by that.   The seal structure according to claim 1, wherein the sealant receiving portion is a film or sheet (12, 19) extending along the other joint perpendicular to the gaskets (4, 11).   The gasket 21 has a plurality of lips 14, 15, 16 on the upper and lower sides, and the sealing material receiving part 22 has the lower lip 16 of the upper and lower lips 14, 15, 16 constant in the length direction of the gasket 21. The seal structure according to claim 1, wherein the seal structure is formed by extending the length.   4. The sealing material receiving part 12 is made of a material that does not adhere to the sealing material, or a film or sheet 20 made of a material that does not adhere to the sealing material is attached to the sealing material receiving part 19. Seal structure.   The gasket 4, 11, 21 has a plurality of lips 4, 15, 16 on the top and bottom, and a receiving material that prevents the sealing material 6 from entering between the lip 14 on the outer surface at the gasket end and the lip 15 on the lower side The seal structure according to claim 1, wherein 17 and 23 are provided.

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