JP4429844B2 - Joint material - Google Patents

Description

  The present invention relates to a joint material attached to a joint formed between outer wall panels of a building.

  FIG. 1 shows a conventional primary joint material 3 a attached to a joint 2 formed between outer wall panels 1 shown in FIG. 2, and protrudes laterally from a column portion 4 and the upper end of the column portion 4. The head lip 5, the intermediate lip 6 projecting obliquely upward from the middle part of the column part 4, the lower lip 7 projecting obliquely upward from the lower end of the column part, the head lip 5 and the intermediate lip 6 As shown in FIG. 2, the joint 2 is constructed by connecting bridges 8, and after mounting the outer wall panel 1, the secondary joint material 3 </ b> B of a round bar made of a foamed material such as polyethylene or EPDM is installed inside the joint 2. Is inserted and then the primary joint material 3a is pressed and attached from above.

  FIG. 3 shows another example of a conventional joint material, which has a primary joint material 3a attached to the joint 2 and a lip 9 projecting obliquely upward. The lip 9 is an end of the outer wall panel 1. It consists of a secondary joint material 10 pressed against the back surface of the edge, and the construction is performed by fixing the secondary joint material 10 on the pillar 11, attaching the outer wall panel 1, and then the primary joint material described above on the joint 2 between the panels. This is done by pushing in 3a.

  In the joint material shown in FIG. 3, even if the joint width may expand, the lip 9 of the secondary joint material 10 is sealed by being pressed against the back surface of the outer wall panel 1, but the secondary joint material 10 Must be installed before installing the outer wall panel 1, but when installing the outer wall panel 1, there is a problem that it is difficult to secure the necessary joint width because the lip 9 is pushed in and the workability is poor. .

  In order to cope with such problems, joint materials as disclosed in Patent Document 1 below have been proposed. As shown in FIG. 4, the joint material includes a column part 12, a head lip 13 projecting laterally from the upper end of the column part 12, and an intermediate lip 14 projecting obliquely upward from the lower end part of the column part. And a lower lip 16 projecting obliquely downward from the lower end of the column part and forming a hook-like part 15 projecting upward at the tip, and the construction is a stepped portion of the side edge as shown in FIG. After attaching the outer wall panel 18 to which the U-shaped channel steel 17 is fixed to the section 20, the joint material 19 is inserted into the channel steel from the end of the joint, and after the insertion, the joint material 19 is pushed through the joint from the outdoor side. This is done by expanding the lower lip 16.

According to this joint material 19, since it can be attached after the outer wall panel is attached and the necessary joint width is secured, workability can be improved.
JP 2001-262724 A

  In the present invention, the above-described joint material 19 is improved so that the joint material can be easily replaced during maintenance.

The invention according to claim 1 is a joint material attached to the joint formed between the outer wall panels of the building, and is inserted into the joint , a secondary joint material that is pushed in from the upper end of the joint and is attached to the indoor side. It consists of a primary joint material attached to the outdoor side, and the secondary joint material has a substantially mountain shape in cross section, and the top part is flexible and can be bent or bent, and lips project from both ends. When the secondary joint material is inserted between the side edge of the back of the outer wall panel from the edge of the joint and the pillar or base material, and then the top part is pushed from the outdoor side through the joint until it hits the pillar or base material. , sat up is the lip, the tip of that characterized in that the elastic contact the side edges of the back outer wall panel.

  As the primary joint material used in the present invention, various known materials pushed into the joint can be used. As such a thing, what consists of the rubber or resin joint material 3 shown by FIG. 1 can be mentioned, for example.

  In order to make the top part of the secondary joint material having a substantially mountain-shaped cross section flexible and bendable or bendable, for example, if the top part is made thin or the top part is made of low hardness Good.

  The invention according to claim 2 is characterized in that the secondary joint material of the invention according to claim 1 has high rigidity and the lip has flexibility.

  As the material of the secondary joint material, olefin-based or styrene-based thermoplastic resins, EPDM rubber, etc. can be used, and in the case of olefin-based or styrene-based thermoplastic resins, the Shore D hardness is Preferably, it is 40 degrees or more, and in the case of rubber such as EPDM, the Duro A altitude is preferably 90 degrees or more. The lip hardness is preferably 60 to 75 degrees for both the above-mentioned thermoplastic resin and rubber such as EPDM.

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein the secondary joint material has protrusions which are opposite to the lip at both ends and hit the pillar or the base material, and the lip is an outer wall panel. The elastic contact position is located on the inner side of the top side than the protrusion in a state of elastic contact with the side edge of the back surface.

  According to the first aspect of the present invention, both the primary and secondary joint materials are attached after the outer wall panel is attached, and it is easy to secure the joint width necessary for attaching the outer wall panel, and the workability of the outer wall panel attachment is improved. Fortunately, even if the joint width may be expanded, the seal is maintained by the elastic contact of the lip of the secondary joint material to the side edge of the back surface of the outer wall panel. The primary joint material can be easily replaced during maintenance.

  According to the invention according to claim 2, since the secondary joint material has high rigidity, it can be easily inserted from the end of the joint, and since the lip has flexibility, it is elastically contacted with the side edge portion on the back surface of the outer wall panel. Can be performed reliably.

  According to the invention according to claim 3, since the elastic contact position of the lip to the side edge of the rear surface of the outer wall panel is located on the inner side of the protrusion hitting the column or the base material, the reaction force received from the solid and the column or the base material It is possible to reliably maintain the seal by the lip that elastically contacts the side edge portion of the rear surface of the outer wall panel by preventing the top portion from being pressed against the pillar or the base material by the couple caused by the above, and trying to restore it to a mountain shape.

  FIG. 6 shows the secondary joint material 21 of the joint material according to the present invention, which is made of an extrusion-molded product having a substantially mountain-shaped cross section, and has a hook shape protruding from a top portion 21a and folded portions 21b at both ends. The portion excluding the lip 21c is made of a hard thermoplastic resin having a high rigidity of Shore D altitude of 40 degrees or more, and the top part 21a and the lip 21c are made of a soft thermoplastic resin having a flexibility of Duro A hardness 60 to 75 degrees. It is made up of. At both ends, protrusions 21d are provided in the opposite direction to the lip 21c.

FIG. 7 shows a state in which the above-described secondary joint material 21 is inserted from the end of the joint. After the insertion, the top portion 21a is pushed through the joint 24 until it hits the pillar 11 as shown in FIG. In this state, the point m at which the lip 21c elastically contacts the side edge of the rear surface of the outer wall panel is located on the inner side on the top side than the protrusion 21d that hits the pillar 11. A reaction force R ₁ acting Thus the side edge of the outer wall panel backside lip 21c, the top 21 a by couple due to the reaction force R ₂ acting from the pillar 11 with the projection 21d is pressed against the pillar 11, Yamagata Is prevented, and the lip 21c elastically contacts the side edge of the rear surface of the outer wall panel to maintain this state.

  Next, the primary joint material 3 described above is pushed into the joint 24 and attached. FIG. 9 shows a state in which the primary joint material 3 is attached.

  Used to install on joints formed between building exterior panels.

Sectional drawing of the conventional joint material. Sectional drawing which shows the state which attached the joint material shown in FIG. 1 to the joint. Sectional drawing which shows another example of the conventional joint material. Sectional drawing which shows another example of the conventional joint material. Sectional drawing which shows the state which attached the joint material shown in FIG. Sectional drawing of the secondary joint material of the joint material concerning this invention. Sectional drawing which shows the state which inserted the secondary joint material shown in FIG. 6 in the joint. FIG. 77 is a cross-sectional view showing a state in which the top of the secondary joint material shown in FIG. Sectional drawing of the joint material concerning this invention.

Explanation of symbols

1, 18, 23 .. Outer wall panel 2, 24.. Joint 3.. Primary joint material 4, 12.. Column 5, 13.. Head lip 6, 14. 8 .. Bridge 9 .. Lip 10, 21 .. Secondary joint material 11 .. Column 15 .. Ridge-shaped part 17 .. Channel steel 19 .. Joint material 20, 22. ..Folding part 21c

Claims (3)

A joint member attached to joints formed between the outer wall panels of the building, and a secondary joint member attached to the indoor side do pushing the upper end of the joint, one being inserted into the joint is attached to the outdoor side primary joint member more becomes, the secondary joint fillers, form a cross section chevron shape, it is possible refraction to bend the top portion is flexible, the lip is projected at both ends, eye ground secondary joint member a side edge portion of the outer wall panel backside from the end, after insertion between the posts or underlying material, can and I push the top from the outdoor side to hit the pillar or the base material through the joint, sat up is the lip, its The joint material is characterized in that the tip of the elastic member is in elastic contact with the side edge of the back surface of the outer wall panel.   The joint material according to claim 1, wherein the secondary joint material (21) has high rigidity and the lip (21c) has flexibility. The secondary joint material has protrusions that are opposite to the lip at both ends and hit the pillar or the base material, and the elastic contact position protrudes with the lip elastically contacting the side edge of the back of the outer wall panel. The joint material according to claim 1, wherein the joint material is located on the inner side of the top side than the portion.

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