JP3688110B2 - Dry exterior joint material structure - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a dry exterior joint material structure, which is easily and reliably imparted and exhibits water-stopping properties, filling the voids in the joint and finishing makeup, and workability capable of being crushed and inserted in the width direction. The present invention relates to a dry exterior joint material structure provided with
[0002]
[Prior art]
Conventionally, joints filling between adjacent exterior panel materials are not installed by on-site plastering work, but are fitted with joint materials molded in advance so that they can be placed between panel materials, thereby allowing rainwater to dwell. For example, as a structure of this type, Japanese Patent Laid-Open No. 50-156225 discloses a U-shaped elastic packing that is compressed by a sewing machine, and this is used as a joint. A waterproof joint gasket is disclosed in which a sewing thread is removed and expanded after being inserted into a part.
[0003]
Further, in Japanese Patent Laid-Open No. 3-132538 or Japanese Patent Laid-Open No. 3-295948, there is a construction member joint portion in which a hollow gasket is evacuated and inserted into a joint portion to release the vacuum and restore the expansion. A joint waterproofing method is disclosed. Furthermore, in JP-A-6-220928 or JP-A-6-306963, a waterproof structure of an outer wall joint portion in which drain pieces are pasted to both ends of the panel through butyl rubber in advance, and a hollow gasket is inserted, Japanese Patent Laid-Open No. 9-32134 describes an exterior joint structure in which waterproof performance is exhibited by insertion of a joint member having a substantially T-shaped cross section between joint joints of the exterior member and rain water is prevented from entering. Has been.
[0004]
[Problems to be solved by the invention]
However, conventionally, in the method of filling the panel joint for the purpose of water stopping, the periphery is masked, and then a primer is selected and applied in consideration of the material of the panel and the cocking. Next, a coking is placed, but it takes several days for the coking to harden.
[0005]
Further, for example, in the above Japanese Patent Laid-Open No. 50-156225, when the sewing thread is pulled and loosened, the insertion position is shifted and it is difficult to fit in a predetermined portion, and it is difficult to follow the unevenness and unevenness of the panel mouth and lack water-stopping property. Further, in JP-A-3-132538, etc., even if there is a slight pinhole, it does not become a vacuum state, and after a long time, air enters and expands, so that it cannot be stored. In addition, thin-walled tubes generally have a drawback of poor durability. In the above-mentioned Japanese Patent Application Laid-Open No. 6-220928, etc., it is difficult to take time for the previous process. Next, the T-type fitting joint material or gasket disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 9-32134 or the like must have a complicated structure and be expensive, and cannot absorb the deviation in joint width due to an error in installation. In addition, there were drawbacks such as insufficient water-stopping. Further, in the case of the conventional method, when the positional relationship of the gasket is shifted due to an assembly error of the frame material or the joint width is widened, the pressure contact state between the gaskets varies, and the appropriate pressure welding is performed. There is a difficulty that a state cannot be obtained. For this reason, there is a possibility that the seal pressure is lowered and rainwater or the like may enter, and there is a problem that the surface appearance of the joint is lowered when the pressure contact state between the gaskets varies.
[0006]
[Means for Solving the Problems]
The present invention has been made to solve the above-mentioned problems, and the dry exterior joint material structure according to claim 1 of the present invention is a dry exterior joint material interposed between joint joints of a building exterior material. a is made from the configuration of該Gaiso material next to coordinating the interpolating a substantially deform rail type fits into the joint gap formed between the side end face joint member, the upper portion of the joint member met upwardly open wing In addition, a joint exposed portion made of one or more kinds of surface materials selected from silicone rubber, EPDM, and chloroprene rubber, and a lower wing shape extending at the bottom and abutting on the side end face for adhesion As well as having an adhesive layer that can close the gap , the lower end can be brought into contact with the side end face within the joint interval, and elastic follow-up and repulsive force and partial stress relaxation accompanying the displacement occur simultaneously, A contact closed state is formed by the adhesive material layer, and the elastic contact follower side At the point of contact with the surface, the maximum pressure is applied at the time of insertion and deformation is applied at both edge portions, and the joint member is restored by a restoring force due to the rebound resilience of the joint member, and the joint member is fitted using the time lag of the restoration speed. It is composed of a backup material capable of performing insertion or insertion operation . Therefore, the joint material interposed in the joint spacing of the exterior material in the present invention is a joint member of a substantially deformed rail type inserted into the joint spacing, with the joint exposed portion and the lower portion at the upper portion. Adhesive layer that is in the shape of a lower wing and is in contact with the adjacent side end face of the exterior material to close the adhesive and gap, and the lower end can be in contact with the side end face. And repulsive force and partial stress relaxation properties occur at the same time, and the adhesion by the adhesive material layer is performed over a relatively wide area of the exterior material, particularly the panel end, and also the side end face, so it is ensured by the double packing action. A closed contact closed state is formed, the fixing strength can be increased, and water stopping performance is exhibited.
[0007]
In addition, joint members are easily applied, and even if you are not an expert, the construction is easy, prevents crimping during construction, water leakage due to uneven coking, etc., and has a good finish. As a sealing member between the panels of the exterior material to be obtained, a sufficient water-stopping effect can be obtained, and permanent water-stopping can be provided over a long period of time.
[0008]
As for workability, a backup material made of a foam formed by being crushed in the lateral width direction or inserted, and formed at the lower part of the joint member is suitable for obtaining an appropriate restoration property. Is an EPDM foam and has a foaming ratio of 4 to 12 times, preferably 6 to 10 times. Further, when there are many closed cells, it is difficult to crush, and when there are many open cells, the restoring force is small. Ratio of 6: 4 to 2: 8, preferably 5: 5 to 3: 7. Further, the EPDM foam having excellent durability and permanent restoring force, and compressive residual strain according to JIS K-6401 Due to a synergistic effect of these combinations such as a reduction of the rate at 50% or less, the foam backup material of the present invention can be configured to have multi-functionality such as an appropriate restoration speed. For this reason, it is possible to perform the insertion or insertion operation of the joint member using the time lag of the moderate restoration speed, and it can be constructed even by a non-expert and has excellent workability. Furthermore, even if the convex part of the hat-type joiner at the bottom of the panel is biased to the left and right, it can be freely deformed to fill the gap, and the inconvenience of workability within the joint interval is surely eliminated.
[0009]
In the joint member having a substantially deformed rail type cross section according to the present invention, a joint exposed portion made of an upper blade-shaped surface material is formed on the upper part thereof. The surface material is preferably made of silicone rubber, EPDM, chloroprene or the like having excellent weather resistance and flexibility, and the joint member is crushed in the lateral width direction and is easily inserted or inserted. Therefore, for example, a range of JIS hardness 30 to 70 is preferably used. Further, since the joint exposed portion made of the surface material constitutes the appearance of the joint, if necessary, a pattern layer can be added to the surface layer of the joint exposed portion. By this joint member, the design of the exterior material and the joint portion It is possible to form a highly decorative wall surface that is harmonized with the design of the material, and it is possible to stably maintain the wall surface as a joint material having durability and various design surfaces.
[0010]
Further, the joint member of the present invention is a substantially deformed rail type inserted into the joint interval, and has a joint exposed portion at the upper portion and a lower blade shape at the lower portion, and adjacent to the exterior material. In this configuration, a pressure-sensitive adhesive layer that can be brought into contact with the side end face to be bonded and close the gap is provided, and the lower end portion can be brought into contact with the side end face. Among the joint members, the elastic contact follower provided with the adhesive layer is crushed in the lateral width direction so that it can be easily inserted or inserted. Combined with the elasticity following and the repulsive force, partly functions as a stress relieving member, and adhesion by the adhesive material layer is performed over a relatively wide area of the exterior material, particularly the panel end, and also the side end face. Therefore, a reliable contact closed state due to the double packing action is formed, the fixing strength can be increased, and the water stopping performance is exhibited.
[0011]
For example, in the invention according to claim 1, in addition to the function as a resilience elastic member in which the joint member abuts on the side end face, both the functions of the part of the stress relaxation member are combined and integrated. The sum of the thicknesses of both sides of the taper in the vicinity of the lower edge of the elastic contact portion that extends and exceeds the contact vertical length at which the elastic contact portion at the joint interval contacts the side end surface. The total is preferably equal to or less than the vertical length. In this way, the rebound elastic force is stored in the joint member by the joint member, but the lower end edges of the elastic contact followers arranged on both sides of the member have a partial stress relaxation force, and both functions are combined and integrated. As a configuration, reliable water stopping is achieved. In addition, although there is a relationship with the size of the joint member itself or the layer thickness of the elastic contact follower, the elastic repulsion force is less than 3 minutes from the viewpoint of the balance between waterproofness and workability. 1 to 2 kg when compressed.
[0012]
Further, in the above-described composite integrated structure of both functions of rebound resilience and partial stress relaxation, a backup material made of a foam attached to the bottom of the joint member exhibits multi-functionality. That is, when the back-up material is attached to the bottom of the joint member, the portion that contacts the side end surface of the elastic contact follower of the joint member receives maximum pressure during insertion and is deformed at both lower edge portions. In the process of restoring by the rebound resilience, a partial stress equilibrium state is maintained in the process of restoring by the rebound resilience of the joint member, and a permanent stress equilibrium state between the rebound resilience and the partial stress relaxation property In the structure which holds, the multi-functionality of the foam backup material acts permanently.
[0013]
In the present invention, on the bottom side of the joint member, the joint member is made of a foam, and receives a maximum pressure at the time of insertion at a portion in contact with the side end surface of the elastic contact follower and is deformed at both lower edge portions. A back-up material made of a multi-functional foam that can be restored by a restoring force due to the rebound resilience of the joint and can be used to insert or insert the joint member using the time lag of the restoring speed is formed. It is characterized by being. In the present invention, the foamed rubber needs to be elastic, but may be either synthetic rubber or natural rubber. The above foam is excellent in durability. For example, foamed EPDM or silicon rubber having a permanent restoring force unlike polyurethane or polyethylene is used, but the foamed EPDM has elastic contact and deformation followability. It is suitable.
[0014]
The back-up material made of the foam can be easily crushed during construction and slowly restored, so that it can be inserted at a predetermined position therebetween. Furthermore, the foaming ratio is 4 to 12 times, preferably 6 to 10 times, in order to obtain an appropriate restoring property. The backup material preferably has an appropriate restoration rate and a compression residual strain ratio of 50% or less. Thus, also in terms of construction work, the joint member can be smoothly inserted and locked within the joint interval so that it can be filled easily.
[0015]
Furthermore, in the present invention, it is appropriate that the backup material has a ratio of closed cells to open cells of 6: 4 to 2: 8, preferably 5: 5 to 3: 7. That is, if there are many closed cells, it is difficult to crush, while if there are many open cells, the restoring force is small, and the larger the restoring force, the more firmly the adhesive rubber is pressed against the panel mouth, ensuring complete and reliable water-stopping. The
[0016]
Further, in the exterior joint material structure of the present invention, an adhesive material layer made of an adhesive rubber is laminated to facilitate mounting between the panels, to be able to contact the side end surfaces and to ensure sealing properties. The elastic member used in the adhesive material layer is a configuration in which an elastic contact follower is provided which is provided in the lower part of the joint member and has a lower open-blade shape and an adhesive material layer that can be contacted and closed. Of these, rubber, rubber / asphalt, or silicon rubber is suitable, and a rubber that is particularly excellent in durability and adhesiveness selected from butyl rubber is suitable.
[0017]
The present invention has been made to solve the above problems, and the exterior joint material structure according to claim 1 of the present invention is a dry exterior joint material interposed between joint joints of a building exterior material. there are, the result from the configuration of the outer package next coordinating the interpolating a substantially deform rail type fits into the joint gap formed between the side end face joint member, the upper part of the said purpose land member a upwardly open wing , silicone - Ngomu, EPDM, and joint exposed portion made of one selected from chloroprene rubber or two or more of the surface material, in the lower open wing and extend to the lower, and brought into contact with the side end surface adhesion As well as having an adhesive layer that can close the gap , the lower end can be brought into contact with the side end face within the joint interval, and elastic follow-up and repulsive force and partial stress relaxation accompanying the displacement occur simultaneously, contact closed state is formed by the adhesive material layer, bullet exhibits waterproofing function A follower, more on the bottom side of the said purpose land member Ri Do a foam, the elastic contact follower deformation receives the maximum pressure to fit挿時other at a location adjacent to a side end face at both lower edges of the is applied, the A backup material is formed which can be restored to a low degree by the restoring force due to the rebound resilience of the joint member, and the joint member can be inserted or inserted using the time lag of the restoration speed .
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be specifically described with reference to examples. An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of the present invention, and is a schematic cross-sectional explanatory view showing a state in which a joint member is inserted and locked within a joint interval, and FIG. 2 is a cross-sectional explanation showing an embodiment of the joint member of the present invention. It is a schematic diagram. In FIG. 1, in the exterior joint material structure of the embodiment, joint intervals 2 are formed on opposing side end surfaces 4 of the exterior material 1, and joint members 3 having a substantially deformed rail type cross section are fitted into the joint intervals 2. It is configured to be inserted and locked. In the joint member 3 according to the embodiment, the elastic member is provided with an adhesive layer 6 that extends below the joint member 3 and has a lower wing shape and can be in contact with the side end surface 4 to ensure sealability. When the follower 7 is pressed inward, elastic followability and repulsive force of displacement in the direction perpendicular to the side end surface 4 are generated at the same time, and the lower end edge 9 of the elastic contact follower 7 is shifted inwardly. In this state, the pressure-sensitive adhesive layer 6 is brought into contact with the side end face 4, and the adhesive paper layer 6 is peeled off and peeled off the laminated release paper 11 as shown in FIG. It has become. Furthermore, the bottom side of the said purpose land member 3, Ri Do a foam, deformation is applied receives the maximum pressure to fit挿時a portion in contact with the side end surface at both lower edges, by rebound resilience that purpose land member A backup material that can be restored to a low level by a restoring force and can be inserted into or inserted into the joint member using a time lag of the restoring speed is mounted. Reference numeral 10 denotes a joint receiving member.
[0019]
FIG. 2 shows a specific configuration as one embodiment of the joint member according to the present invention as described above. In the exterior joint material structure of the embodiment, the joint member 3 having a substantially deformed rail type cross section is formed inside the joint interval 2 formed between the side end faces 4 adjacent to the exterior material 1 and the lower part thereof. An elastic contact follower portion 7 is provided in the form of a downwardly opened blade and capable of coming into contact with the side end face 4 and provided with an adhesive layer 6 for securing sealability. The elastic contact portion 7 is pressed inward by the lower end edge portion 9 to generate elastic followability and repulsive force of displacement in a direction perpendicular to the side end face 4, and extends below the joint member 3 to open downward. The wing-shaped elastic contact follower 7 has a shape of an open wing in the lower part in the non-contact state. An adhesive material layer 6 provided with release paper 11 is formed on the outer surface in contact with the side end surface 4 of the elastic contact follower 7. Further, a backup material 8 made of a foam is formed on the bottom side of the joint member 4.
[0020]
FIG. 3 shows another embodiment of the joint member according to the present invention. The joint member 3 is inserted into a relatively narrow portion of the joint interval 2 and is mounted and locked. Accordingly, the joint member 3 is formed even in the case of a construction site where the joint interval 2 is relatively narrow, such as a width interval of 15 mm or less and 8 to 12 mm, for example, with a relatively narrow joint interval 2 formed by the opposing side end surfaces 4 of the exterior material 1. It is possible to construct for insertion and attachment locking.
[0021]
The joint member 3, together with the joint exposed portion 5 and the elastic contact follower portion 7, is sandwiched between the side end surfaces 4 facing each other at the joint interval 2 and deformed to a small extent as a compressed state, and is inserted inside the joint interval 2. It has become a form. Thus, even if it is inserted inside the joint interval 2 and is inserted and locked in a compressed state, the basic configuration of the substantially deformed rail type cross section can be maintained, and the abutment is blocked and stopped similarly. The pressure-sensitive adhesive layer 6 capable of exhibiting the function is provided, and the elastic followability, repulsive force and partial stress relaxation accompanying the deformation are simultaneously generated, and the adhesion by the pressure-sensitive adhesive layer 6 is bonded to the exterior material 1. In particular, since it is made over a relatively wide area of the panel lip and further on the side end face, a reliable contact closed state due to double packing action is formed, the fixing strength is increased, and excellent water stop performance is achieved.
[0022]
In addition, the backup material 8 made of a foam mounted on the bottom side of the joint member 3
Can be easily crushed when constructed in the same manner, has an appropriate restoration speed, and the speed is also slow, so that it can be inserted at a predetermined position therebetween. For this reason, the joint member 3 can be smoothly inserted into the joint interval 2 even at a construction site having a relatively small joint interval 2 and can be filled easily. It is also suitable as a configuration for locking.
[0023]
Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and modifications and the like that do not depart from the gist of the present invention are included in the scope of the present invention.
[0024]
【The invention's effect】
The present invention is configured as described above and has the following effects. According to the dry exterior joint material structure of the present invention, since the joint member is disposed and bonded to the panel lip, it provides a complete and reliable water-stopping effect and cannot absorb the joint width error due to the error of conventional installation. Can improve the shortcomings. Moreover, even if it is not an expert, construction is easy, more reliable insertion is achieved, and a beautiful finish can be obtained. Furthermore, in terms of workability, the joint member can be squeezed in the lateral width direction, inserted and locked, and the foam backup material has an appropriate recovery speed from compression residual strain. The insertion work can be easily and simply inserted at a predetermined position by utilizing the persistence of the restoring force. The joint material structure of the present invention is simple in construction and easy to work. Conventional T-type joint joint materials and gaskets require several days until coking, and the structure is complicated and expensive. In addition, the construction cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional explanatory view showing an embodiment in which a joint member of the present invention is mounted and locked.
FIG. 2 is a schematic cross-sectional explanatory view showing an embodiment of a joint member of the present invention.
FIG. 3 is a schematic cross-sectional explanatory view showing another embodiment in which the joint member of the present invention is mounted and locked.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Exterior material 2 Joint space | interval 3 Joint member 4 Side end surface 5 Joint exposed part 6 Adhesive material layer 7 Elastic contact follow-up part 8 Backup material 9 Lower end edge part 10 Joint receiving member 11 Release paper

Claims (3)

A dry outer joint member is interposed joint spacing architectural exterior materials, from the configuration of the outer member next to coordinating the interpolating a substantially deform rail type fits into the joint gap formed between the side end face joint member becomes, the upper part of the said purpose land member a upwardly open wing, silicone - Ngomu, EPDM, and joint exposed portion made of selected one or two or more of the surface material from chloroprene rubber, is extended to the lower It has a pressure-sensitive adhesive layer that can contact the side end surface and close the adhesive and gaps, and the lower end can be in contact with the side end surface within the joint interval, and follows the elasticity following the displacement. Elasticity , repulsive force, and partial stress relaxation properties occur at the same time, the adhesive material layer forms a contact closed state, and exhibits a water stop function, and a foam on the bottom side of the joint member Tona is, the maximum pressure in挿時fitted in place in contact with the side end surface of the elastic contact follower In response, deformation is applied to both lower edge portions, and the joint member can be restored or restored with a restoring force due to the rebound resilience of the joint member, and the joint member can be inserted or inserted using the time lag of the restoration speed. A dry exterior joint material structure characterized by comprising a backup material.   The dry exterior joint material structure according to claim 1, wherein the adhesive material layer provided in the elastic contact follower is a rubber-based or rubber-based and / or asphalt-based adhesive. The dry exterior joint material structure according to claim 1 or 2, wherein the foam is made of EPDM, has a foaming ratio of 4 to 12 times, and a ratio of closed cells to open cells is 6/4 to 2/8.

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