JP5282949B2 - Exterior wall joint material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a joint material for an outer wall, which is easy to handle and construct, and reduced in a construction period. <P>SOLUTION: The joint material 10 for outer wall includes a substantially hollowed trapezoidal sectional shape, and includes a bellows-like side part 13. In the joint material, an upper end portion 12a to abut on an outer wall panel P is formed in a warped arch shape, an upper part 12 includes a double layer structure consisting of a base layer 12b and a decorative layer 12c, a projection 11a is formed on the inner surface of a bottom part 11, and a core material 14 is disposed on the projection part 11a. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a joint material for an outer wall. More specifically, the present invention relates to a joint material for an outer wall that simplifies the construction of the joint part.

  Conventionally, in the outer wall structure 100 to which the panel method is applied, a dry joint 101 as shown in FIG. 4 is used at the joint from the viewpoint of simplifying the construction.

  The construction of the dry joint 101 is performed on the joint mounting member 102 provided on the frame such as the pillars 111 and 121 using the scaffolding provided on the aerial work vehicle or the joint after the assembly of the outer wall panels 110 and 120 is completed. This is done by clipping the dry gasket 103.

  However, the conventional dry joint 101 has a problem in that the construction period is prolonged because the joint portion is constructed after the assembly of the outer wall panels 110 and 120 is completed.

  In addition, since construction is performed using a work platform at a high altitude and a scaffolding provided at the joints, the construction cost is increased and the construction of the exterior must be done after the construction of the joints is completed. There is also a problem that the above constraints are also introduced.

  Further, since the dimensions of the dry gasket 103 are constant, the assembly tolerance of the outer wall panels 110 and 120 is set strictly as ± 2 mm at the design value, so that the assembly period of the outer wall panels 110 and 120 is lengthened and assembled. There is also the problem of incurring cost increases.

  In addition, since the dry gasket 103 is easily deformed, there is also a problem that if it is handled incorrectly during installation, it deforms and damages the appearance of the joint.

  The present invention has been made in view of the problems of the prior art, and an object thereof is to provide a joint material for an outer wall that is easy to handle and construct and that can shorten the construction period.

The joint material for an outer wall of the present invention is a joint material for an outer wall that is disposed inside the outer wall panels and forms a water stop for the joint portion between the outer wall panels, and has a substantially hollow trapezoidal cross section. In the trapezoidal shape, the width of the bottom part bonded to the housing is wider than the width of the upper part in contact with the outer wall panel and the width of the joints of the outer wall, and both ends of the upper part warp the outer wall panel side. In this case, a restoring force is generated at both end portions, thereby improving the water stoppage at the contact portion with the outer wall panel .

  Moreover, in the joint material for outer walls of this invention, it is preferable that the lower part is made into groove shape.

  Furthermore, in the joint material for an outer wall of the present invention, it is preferable that the upper part has a two-layer structure of a base layer and a decorative layer.

  Furthermore, in the joint material for an outer wall according to the present invention, it is preferable that a protrusion is formed on the inner surface of the bottom attached to the housing. In that case, it is more preferable that a core material is disposed on the protruding portion.

  Since the joint material for an outer wall of the present invention is configured as described above, an excellent effect is obtained that handling and construction are easy and the construction period is shortened. Moreover, since the construction period is shortened, an excellent effect is achieved that the construction cost can be reduced.

  Hereinafter, although the present invention is explained based on an embodiment, referring to an accompanying drawing, the present invention is not limited only to this embodiment.

  A joint material for an outer wall according to an embodiment of the present invention (hereinafter simply referred to as joint material) is shown in a sectional view in FIG.

  As shown in FIG. 1, the joint material 10 has a width of the bottom 11 bonded to the housing of about 30 mm, a width of the top 12 in contact with the outer wall panel of about 25 mm, and a height of about 20 mm. It is set as the cross-sectional form of a substantially hollow trapezoid shape. The material of the joint material 10 is a synthetic rubber such as EPDM (ethylene-propylene rubber).

  The bottom portion 11 is thickened by the side portion 13 and the upper portion 12, and the center of the inner surface is a protruding portion 11 a protruding in a mountain shape, so that the rigidity of the joint material 10 in the longitudinal direction is improved. Further, from the viewpoint of further improving the rigidity, a core material 14 made of a steel wire, for example, a piano wire, is disposed on the protruding portion.

  The side portion 13 includes a straight portion 13a joined to the bottom portion 11 and a curved portion 13b integrally formed from the straight portion 13a. That is, the side portion 13 has a bellows shape. Thus, by making the side part 13 into a bellows shape, the flexibility in the direction perpendicular to the wall surface of the joint material 10 is ensured and the construction is facilitated. Moreover, since the part joined with the bottom part 11 is made into the linear part 13a, the joint material 10 lower part exhibits groove shape and the further improvement of the rigidity of the longitudinal direction of the joint material 10 is aimed at by this.

  The upper portion 12 has a bow shape in which both end portions 12a joined to the upper end of the side portion 13 are warped upward. Thus, since both end portions 12a are formed in a bow shape that warps upward, that is, toward the outer wall panel, a restoring force is generated at both end portions 12a, and the water stoppage at the contact portion with the outer wall panel is improved.

  The upper portion 12 has a two-layer structure of a lower base layer 12b and an upper decorative layer 12c. By appropriately adjusting the color of the decorative layer 12c, the design of the joint portion can be improved. For example, by making the color of the decorative layer 12c the same color as that of the outer wall panel, the aesthetic appearance of the joint portion can be improved, and a special finishing process in the joint portion can be eliminated.

  In FIG. 2, the outer wall joint part to which the joint material 10 is attached is shown in a horizontal section.

  As shown in FIG. 2, the joint material 10 is attached to the joint position of the first pillar C1 to which the first outer wall panel P1 is attached. This attachment is made by, for example, a double-sided tape. Further, the secondary water blocking material 20 is attached adjacent to the second outer wall panel P2 side of the joint material 10. The secondary water-stopping material 20 is an elastic body having compressibility and restoring property, for example, synthetic rubber, similar to the joint material 10.

  After the joint material 10 and the secondary water blocking material 20 are attached, the first outer wall panel P1 is attached to the first column C1. This attachment is made such that one end of the first outer wall panel P1, in the drawing, the right end contacts one end of the upper portion 12 of the joint material 10, and in the drawing, the left end 12aL. In this case, the first outer wall panel P1 is attached so as to compress the joint material 10 by a certain amount. By doing in this way, a water stoppage improves with the restoring force of the joint material 10. FIG.

  Next, the second pillar C2 to which the second outer wall panel P2 is attached is built (see FIG. 3). This erection is performed such that one end of the second outer wall panel P2, in the drawing, the left end contacts the other upper end of the joint material 10, and in the drawing, the right end portion 12aR. In this case, since the restoring force of the joint material 10 also acts on the second outer wall panel P2, the water stoppage at this portion can be improved.

  As described above, when the joint material 10 according to the present embodiment is used, water is stopped if the outer wall panel P is brought into contact with the end portion 12a of the upper portion 12 of the joint material 10. Therefore, the installation tolerance of the outer wall panel P is reduced. Can be bigger. For example, it can be ± 4 mm. That is, the tolerance can be doubled.

  As described above, since the tolerance can be increased, the construction is facilitated, the construction period is shortened, and the construction cost is also reduced.

  In addition, at the same time as the installation of the outer wall panel P is completed, the water stop of the joint is also completed. For this reason, a construction period is shortened remarkably and a construction cost is reduced.

  In addition, since the exterior work can be performed immediately after the installation of the outer wall panel P is completed, the entire construction period is shortened.

  As mentioned above, although this invention has been demonstrated based on embodiment, this invention is not limited only to this embodiment, A various change is possible. For example, depending on the length of the joint material 10, the core material 14 of the bottom 11 can be unnecessary. In addition, in the joint portion where the design property does not become a problem, the decorative layer 12c on the upper portion of the joint material 10 can be omitted.

  The present invention can be applied to the joint portion of the outer wall.

It is sectional drawing of the joint material which concerns on one Embodiment of this invention. It is a horizontal sectional view of the joint part in the outer wall structure in which the joint material is used. It is construction explanatory drawing which shows the state which has installed the 2nd outer wall panel in the outer wall structure where the joint material which concerns on one Embodiment of this invention was used. It is a horizontal sectional view of the joint part in the conventional outer wall structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Joint material 11 Bottom part 11a Protrusion part 12 Upper part 12b Base layer 12c Makeup layer 13 Side part 14 Core material 20 Secondary waterproofing material C Column P Outer wall panel

Claims (5)

A joint material for an outer wall that is disposed inside the outer wall panels and forms a water stop of the joint portion between the outer wall panels,
The cross-section is generally a hollow trapezoidal shape, the side portion is a bellows shape,
The trapezoid is such that the width of the bottom bonded to the housing is wider than the width of the upper part that contacts the outer wall panel and the width of the joint of the outer wall,
The upper both end portions are formed in a bow shape that warps toward the outer wall panel side, whereby a restoring force is generated at the both end portions, and water stoppage at the contact portion with the outer wall panel is improved. Joint material for exterior walls. The joint material for an outer wall according to claim 1, wherein the lower part is formed in a groove shape. The joint material for an outer wall according to claim 1 or 2 , wherein the upper part has a two-layer structure of a base layer and a decorative layer. The joint material for an outer wall according to claim 1, 2 or 3 , wherein a protrusion is formed on the inner surface of the bottom portion attached to the housing. The joint material for an outer wall according to claim 4 , wherein a core material is disposed on the protruding portion.

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