JP6383159B2 - gasket - Google Patents

Description

  The present invention relates to a gasket that can be provided at a joint of a building.

  Japanese Patent Application Laid-Open No. 2004-228561 can deal with a difference in gap width at the design stage and the like, and can also deal with a series of joints or the like having different gap widths at both ends, with the same specified size and without the need for connection processing. A gasket is disclosed. This gasket is composed of an elongated body having a cross-sectional structure of a prescribed size having a fin portion in the width direction with respect to the gap in the connecting portion in the depth direction. It has an adjustable cut in the longitudinal direction for adjustment.

JP 10-46693 A

  However, in the gasket of the above-mentioned Patent Document 1, it is only possible to adjust the width of the fin portion by the above-mentioned cutting, and it is difficult to bend the fin portion appropriately by the above-mentioned cutting, and the fin in the direction in which the above-mentioned cutting portion is expanded. When the portion is bent, the fin portion may be cracked from the cut.

  In view of the above circumstances, an object of the present invention is to provide a gasket capable of appropriately and easily bending a fin portion and cutting the fin portion without a special tool.

  In order to solve the above problems, the gasket of the present invention is a gasket provided on a joint of a building, wherein a plurality of fin portions are formed in a core portion, and at least one of the plurality of fin portions is provided. One or a plurality of groove portions, and the groove portions make it easy to bend a part or the whole of the fin portion toward the outdoor side of the building and to tear and remove the fin portion by hand or the whole. Features.

  If it is said structure, it will be able to perform appropriately and easily by bending the said fin part and performing the excision of the said fin part without a special tool here. Therefore, for example, if the joint of the actual building is completed according to the design joint width, the gasket is inserted into the joint so that a part or the whole of the fin portion is bent outward by the groove. On the other hand, when the joint width of the actual building is narrower than the design joint width, the gasket is placed in the joint by partially or entirely tearing the fin portion. Can be put.

  The hardness of the fin portion may be lower than the hardness of the core portion. According to this, it becomes easy to bend the said fin part, and it becomes easy to put a gasket even in a narrow joint.

  A pair of fin portions with reduced hardness may be integrally formed on the end surface of the core portion. According to this, since it becomes easy to bend a pair of said fin part, it becomes easy to insert a gasket even in a narrow joint.

  The groove portion may be present at the boundary between the core portion and the fin portion, and the core width of the boundary may be narrower than the maximum width of the core portion. According to this, it becomes easy to excise the whole fin part from the core part, and the core part width of the part where the whole fin part is excised is made narrower than the maximum width of the core part. Can do.

  The maximum width of the core may be 45% or more and 65% or less of the width of the target joint. According to this, for example, even when the volume of the gasket used for the joint of the building becomes large due to the requirement of fire resistance, the occurrence of a problem that the gasket does not enter the joint while satisfying the required volume. Can be reduced.

  Among the plurality of fin portions, the fin portion is provided at an intermediate position between the most outdoor fin portion and the most indoor fin portion, and the intermediate fin portion is bent outward. The width of the portion of the core portion that comes into contact with each other may be narrower than the maximum width of the core portion. According to this, when the gasket is attached to the narrow joint and the fin portion at the intermediate position is bent to the outdoor side, the fin portion at the intermediate position can be bent more toward the core portion by the narrow portion. It becomes easy to insert a gasket even in a narrow joint.

  In the core part, an inclined part whose core part width becomes narrower toward the outdoor side is formed, and a fin part may be formed in the inclined part. According to this, it becomes easy to bend the said fin part to the outdoor side, and it becomes easy to put a gasket even in a narrow joint.

  According to the present invention, it is possible to appropriately and easily perform the bending of the fin portion and the cutting of the fin portion without a special tool by the groove portion formed in the fin portion. Therefore, for example, if the joint of the actual building is completed according to the design joint width, the gasket is inserted into the joint so that a part or the whole of the fin portion is bent outward by the groove. On the other hand, when the joint width of the actual building is narrower than the design joint width, the gasket is placed in the joint by partially or entirely tearing the fin portion. Can be put.

It is explanatory drawing which showed the gasket of embodiment of this invention, The figure (A) shows the state which the fin part is not bent, The figure (B) shows the state where a part of fin part was bent. It is a figure. It is explanatory drawing which showed the state with which the gasket of FIG. 1 was mounted | worn with the horizontal joint formed between the outer wall panels adjacent to a building. It is explanatory drawing which showed the state in which the gasket of FIG. 1 was put into the joint of the width | variety narrower than the design width.

  Hereinafter, the gasket which can be provided in the joint of the building outer wall of this embodiment is explained based on an accompanying drawing. As shown in FIGS. 1 (A) and 1 (B), the gasket 1 of this embodiment has a cross-sectional structure in which a plurality of fin portions (lips) 12 protrudes from a core portion 11, and is long. It can be cut at an arbitrary location by being formed, and can be used by adding it at an insufficient location. And the said gasket 1 has a total of six fin parts 12 in this example. The six fin portions 12 are composed of a pair of front fin portions 12a located on the most outdoor side, a pair of back fin portions 12b located on the most indoor side, and a pair of intermediate fin portions 12c located in the middle thereof. It is made up. Further, the core portion 11 of the gasket 1 has a shape that is symmetrical with respect to a plane passing through the center thereof (see the one-dot chain line in FIG. 1), and the pair of front fin portions 12a and the pair of back sides. The fin portion 12b and the pair of intermediate fin portions 12c are also formed in plane symmetry.

  A groove portion 121 is formed on the surface on the outdoor side of each base portion (a boundary portion between the core portion 11 and the fin portion 12) of the pair of back side fin portions 12b. When the back fin portion 12b is bent to the outdoor side, the base portion of the fin portion material due to this bending is absorbed in the space of the groove portion 121, so that resistance to bending hardly occurs, and the back fin portion 12b is not mounted. It becomes easy to bend outward. In addition, since the root portion of the back fin portion 12b is thinned by the groove 121, the back fin portion 12b can be easily removed by tearing by hand. As the groove 121, a concave groove such as a U-shaped groove, a V-shaped groove, an Ω-shaped groove, or a rectangular groove can be employed. The groove 121 is not limited to one for each fin 12, and a plurality of grooves 121 can be formed for one fin 12. Moreover, you may form the said groove part 121 in the fin parts 12 other than the said back side fin part 12b.

  The gasket 1 is a joint having a design joint width of 10 ± 2 mm, for example, and the dimension (front width) from the front end of one front fin portion 12a to the front end of the other front fin portion 12a. ) Is about 9 mm, the dimension from the tip of one intermediate fin portion 12c to the tip of the other intermediate fin portion 12c is about 14.5 mm, and the tip from one tip fin portion 12b to the other The dimension to the tip of the back fin portion 12b (back portion width) is about 12 mm.

  The dimension (intermediate fin height) from the end face on the indoor side of the gasket 1 to the most outdoor portion at the tip of the intermediate fin section 12c is about 5 mm, and the end face on the indoor side of the gasket 1 To the front end surface of the front fin portion 12a (gasket height) is about 8 mm.

  The maximum width of the core 11 is in the range of 45% to 65% of the width of the target joint, and preferably in the range of 50% to 60%. In the gasket 1, a portion 11a where the back fin portion 12b can be bent and brought into contact with the outdoor side is the maximum width portion of the core portion 11, and the width of the portion 11a is 10 mm. It is about 6 mm corresponding to 60%. Further, the width of the portion 11b of the core portion 11 with which the intermediate fin portion 12c is bent and brought into contact with the outdoor side is narrower than the maximum width of the core portion 11 (the width of the portion 11a) and is about 5 mm.

  In addition, an inclined portion 11c whose core width becomes narrower toward the outdoor side is formed at a location between the portion 11a and the portion 11b in the core portion 11, and the intermediate fin portion 12c is formed on the inclined portion 11c. Is formed. Further, the intermediate fin portion 12c is formed in an inclined state that is located on the outdoor side toward the tip.

  The hardness of the fin portion 12 is lower than the hardness of the core portion 11. In this embodiment, the core portion 11 is made of hard TPO (olefin elastomer), and the fin portion 12 is made of soft TPO. Of course, it is not limited to such materials. The material is preferably a rubber-like elastic body, and a thermosetting elastomer obtained by vulcanizing a synthetic rubber such as EPDM or a thermoplastic elastomer (TPE) such as TPO is preferable. Further, a resin such as PVC may be used. In particular, the core 11 functions even with a low-flexibility material such as polypropylene (PP) or polyethylene (PE). The core portion 11 has a durometer hardness of about 70 degrees, and the fin portion 12 has a Shore hardness of about 48 degrees. In addition, such gaskets having partially different hardnesses can be produced, for example, by injecting the respective forming materials into the corresponding regions of the respective parts in an extruder. 1 and 2, the boundary between the core portion 11 and the fin portion 12 (material boundary) is indicated by a dotted line.

  The groove 121 is present at the boundary between the back fin 12 b and the core 11, and the width of the core 11 at the boundary is narrower than the maximum width of the core 11. That is, the boundary between the back fin portion 12b and the core portion 11 is present to be narrower than the portion 11a at a position on the indoor side of the maximum width portion 11a of the core portion 11.

  Further, the pair of front fin portions 12 a are integrally formed by the soft TPO provided on the end face on the outdoor side of the core portion 11.

  As shown in FIG. 2, for example, the gasket 1 can be mounted in a joint 51 formed between adjacent outer wall panels 50, 50. In FIG. 2, the width of the joint 51 is 10 mm, and the gasket 1 is illustrated on the assumption that the target joint width is designed for 10 mm. The gasket 1 serves as a backer for backing up the irregular sealing material 52.

  In FIG. 3, the gasket 1 is designed for a target joint width of 10 mm. However, it is assumed that the joint 51 of the actual building is as narrow as 8 mm. In such a case, the gasket 1 can be put into the joint 51 by tearing and removing the pair of back fin portions 12b from the groove 121 by hand. The intermediate fin portion 12c enters the joint 51 while being in contact with the portion 11b. Further, since the width of the joint 51 is 8 mm while the entire width of the front fin 12 a is 9 mm, the front wall of the joint 51 is slightly protruded to the outdoor side. Will be in pressure contact. Even when the joint 51 of the actual building is as wide as 12 mm, the intermediate fin portion 12 c can be stretched within the joint 51.

  If it is said structure, it can carry out appropriately and easily by the said groove part 121 formed in the said fin part 12 that the said fin part 12 is bent and the excision of the said fin part 12 is performed without a special tool. It becomes like this. Therefore, if the joint 51 of the actual building is completed according to the design joint width, the gasket 1 is connected to the joint 51 such that a part or the whole of the fin portion 12 is bent outward by the groove 121. Just put it in. On the other hand, when the joint width of the actual building is narrower than the designed joint width, the gasket 1 is put into the joint by partially tearing the fin portion 12 by hand. Can do.

  When the hardness of the fin portion 12 is lower than the hardness of the core portion 11, the fin portion 12 is easily bent, and the gasket 1 can be easily inserted even in a narrow joint. In addition, when the groove 121 is present at the boundary between materials having different hardnesses as in the back fin portion 12b, the entire back fin portion 12b can be easily cut out.

  In addition, when the pair of front fin portions 12a having low hardness is integrally formed on the end surface of the core portion 11, the pair of front fin portions 12a can be easily bent. Is easier to put.

  When the groove 121 is present at the boundary between the core 11 and the fin 12, and the width of the core 11 at the boundary is narrower than the maximum width of the core 11, It becomes easy to cut out the whole from the core part 11, and the width of the part where the whole fin part 12 is cut out can be made narrower than the maximum width of the core part 11. In particular, when such a configuration is provided in the back fin portion 12b, when the entire back fin portion 12b is cut away, a portion narrower than the maximum width of the core portion 11 is on the tip side (indoor side). It will be located and it will become easy to put the gasket 1 in a joint.

  If the maximum width of the core 11 is 45% to 65% of the width of the target joint, for example, even if the volume of the gasket used for the joint 51 of the building is increased due to fire resistance, the required volume is reduced. While satisfying, it is possible to reduce the occurrence of problems such as the gasket not entering the joint.

  If the width of the portion 11b of the core portion 11 that is bent and contacts the intermediate fin portion 12c is made narrower than the maximum width of the core portion 11, the gasket 1 is attached to a narrow joint, and the intermediate fin When the portion 12c is bent to the outdoor side, the intermediate fin portion 12c can be bent to the core portion 11 as much as the narrow portion, so that the gasket 1 can be easily inserted even in a narrow joint.

  If the fin portion 12 is formed on the inclined portion 11c formed on the core portion 11, the fin portion 12 can be easily bent outward, and the gasket 1 can be easily inserted even in a narrow joint.

  In the above example, the gasket 1 is used as a sealing material backer. However, the present invention is not limited to this, and the gasket 1 can also be used as a dry gasket without using a sealing material. Moreover, although the structure which has a total of six fin parts 12 by 3 pairs was shown, it is not restricted to such a structure.

  As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to the thing of embodiment shown in figure. Various modifications and variations can be made to the illustrated embodiment within the same range or equivalent range as the present invention.

1 Gasket 11 Core 11a (Maximum width of core)
11b part 11c inclined part 12 fin part 12a front side fin part 12b back side fin part 12c intermediate fin part 50 outer wall panel 51 joint 52 sealing material

Claims (7)

A gasket provided in a joint of a building, wherein a plurality of fin portions are formed in a core portion, and at least one of the plurality of fin portions includes one or a plurality of groove portions, and the groove portions described above together with a part or the whole of the fin portion is easily bent outdoor side of the building, a gasket, wherein a part or all of the fin portions can be removed by tearing by hand from the point of the groove.   The gasket according to claim 1, wherein the hardness of the fin portion is lower than the hardness of the core portion.   The gasket according to claim 2, wherein a pair of fin portions having low hardness are integrally formed on an end surface of the core portion.   The gasket according to any one of claims 1 to 3, wherein the groove portion is present at a boundary between the core portion and the fin portion, and a core width of the boundary is narrower than a maximum width of the core portion. A gasket characterized by that.   The gasket according to any one of claims 1 to 4, wherein the maximum width of the core portion is a width that is not less than 45% and not more than 65% of the width of the target joint.   The gasket according to any one of claims 1 to 5, wherein a fin portion is provided at an intermediate position between the most outdoor fin portion and the most indoor fin portion among the plurality of fin portions. The gasket is characterized in that the width of the core portion where the fin portion at the intermediate position is bent and contacts the outdoor side is narrower than the maximum width of the core portion.   The gasket according to any one of claims 1 to 6, wherein the core portion is formed with an inclined portion whose core portion width becomes narrower toward an outdoor side, and a fin portion is formed on the inclined portion. A gasket characterized by having

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