JPH0241229Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a joining structure for exterior panels such as clapboards used for exterior walls of houses, etc.

(Prior Art) As shown in FIG. 6, the exterior plate 1 is formed with cutouts on both the inner and outer sides, with one end serving as a lower part 2 and the other part serving as an upper part 3. The lower part 2 of the exterior plate 1 and the upper part 3 of the adjacent exterior plate 1
They were joined together in a polymerized form. In addition, the end face 4 of the upper fruit part 3 and the side surface 5 of the exterior plate main body side stepped part of the lower fruit part 2
were butt-shaped, and a waterproof sealing member 8 was interposed between the inner surface 6 of the upper fruit portion 3 and the outer surface 7 of the lower fruit portion 2.

(Problems to be Solved by the Invention) According to the above-mentioned joining structure, when constructing each exterior board 1 by nailing or the like, there is a possibility that a gap may be created between the butted end surface 4 and the stepped side surface 5. However, there was a risk that rainwater could fall through the gap, and the water resistance was poor. In addition, ultraviolet rays penetrate through the gaps, causing deterioration of the sealing member 8, which has the disadvantage that a good waterproofing effect cannot be achieved.

(Means for solving the problem) Therefore, the present invention aims to prevent the deterioration of the sealing member and improve its waterproof property. In the joining structure of the exterior plate in which the lower body part and the upper body part formed on the other end of the adjacent exterior plate are joined together via a sealing member, the exterior plate is attached to the outer surface of the lower body part. An engagement groove that gradually becomes narrower in the inner surface direction of the main body is provided, and a protrusion portion that becomes gradually narrower in the inner surface direction of the exterior plate body is provided on the inner surface of the upper part to be fitted into the engagement groove, The end face of the upper fruit part and the side surface of the outer plate main body side step part of the lower fruit part are brought into close contact, and a drainage space is formed between the protrusion part and the engagement groove, so that the protrusion part is engaged. A sealing member is inserted into the groove and interposed between the lower end side inclined wall surface and the narrowest portion of the engagement groove and the exterior plate main body side inclined wall surface and the narrowest portion of the protrusion.

(Function) According to the present invention, when the lower part of one adjacent exterior plate is joined to the upper part of the other exterior plate by overlapping, the end face of the upper part and the lower part of the exterior plate It can be installed by nailing or the like with the side surface of the step on the main body in close contact with the side surface of the main body side step. When the protrusion of the upper part is inserted into the engagement groove of the lower part, the inclined wall of the protrusion on the side of the exterior plate body is connected to the inclined wall of the engagement groove on the lower end of the engagement groove through the seal member. By being guided and moved, the end face of the upper fruit part has greater adhesion with the side surface of the step part on the side of the exterior plate main body of the lower fruit part, and ultraviolet rays can be reliably blocked. Furthermore, since the sealing member is interposed between the narrowest part of the engagement groove and the narrowest part of the protrusion, the sealing member can be reliably compressed. Further, since a drainage space is formed between the protrusion and the engagement groove, the drainage space prevents rainwater from entering from the close contact portion due to capillary phenomenon, and the drainage space drains the rainwater that has entered. .

(Example) Hereinafter, a first embodiment of the present invention will be described based on the drawings. In FIGS. 1 to 3, 11 is an exterior board such as a clapboard, and an exterior board main body 11a; An upper solid portion 15 formed on the outer surface 12 side of one end, and an inner surface 1 of the other end of the exterior plate main body 11a.
and a lower fruit portion 14 formed on the third side. The upper fruit part 15 and the lower fruit part 14 form a joint joint part. Lower fruit part 14 and upper fruit part 15
The outer surface 16 of the lower fruit portion 14 and the inner surface 17 of the upper fruit portion 15 are formed in corresponding slopes so that the side of the main body 11a of each of the exterior plates is thick. In addition, each end face 18, 19 of the lower fruit part 14 and the upper fruit part 15
are the outer surface 12 or inner surface 1 of the exterior plate main body 11a, respectively.
It is formed perpendicular to 3. Furthermore, the stepped side surfaces 20 and 21 of the lower part 14 and the upper part 15 on the side of the exterior plate body 11a are also formed perpendicularly to the outer surface 12 or inner surface 13 of the exterior plate body 11a, respectively. has been done. An engagement groove 22 that gradually narrows in width toward the inner surface 13 is formed on the outer surface 16 of the lower fruit portion 14 along the longitudinal direction of the lower fruit portion 14. 20, a vertical wall surface 23 that is continuous with the vertical wall surface 20, a sloped wall surface 24 on the lower end surface 18 side that gradually approaches the vertical wall surface 23 in the direction of the inner surface 13, and a bottom surface 25 at the bottom. Further, on the inner surface 17 on the protruding end side of the upper solid portion 15, a protrusion 2 having a corresponding shape that gradually becomes narrower in the direction of the inner surface 13 so as to be fitted into the engagement groove 22.
6 is formed along the longitudinal direction of the solid portion 15, and the protrusion portion 26 has a vertical wall surface 27 continuous with the end surface 19, and an inner surface 1 with respect to the vertical wall surface 27.
Slanted exterior plate main body 11a that gradually approaches in three directions
The inclined wall surface 28 faces the bottom surface 25 of the engagement groove 22 in a substantially parallel manner when the lower part 14 of the exterior plate 11 and the upper part 15 of another exterior plate 11 are jointed. It is composed of a fitting end surface 29. Then, the inclined wall surface 24 of the engagement groove 22 and the narrowest part 3 of the engagement groove
A sealing member 31 as a waterproof sealing material such as foamed hot melt resin is attached to the housing 0 along the longitudinal direction.

When joining the exterior plates 11 having the above configuration to each other, the upper body part 15 of another exterior plate 11 is superimposed on the lower body part 14 of the exterior plate 11, which has been fixed with nails 32 in advance, and Outer end surface 1 of upper solid portion 15
The exterior plate 11 may be fixed by driving 32 nails with 9 in close contact. In that case, the engagement groove 22 of the lower fruit part 14
is formed gradually narrower in the direction of the inner surface 13, and the upper solid portion 1
The protrusions 26 of No. 5 are correspondingly formed to gradually become narrower in the direction of the inner surface 13, and the sealing member 31 is attached to the inclined wall surface 24 and the narrowest portion 30.
When the protrusion 26 is inserted into the engagement groove 22, the narrowest part 33 of the protrusion 26 is pressed against the sealing member 31, and as the protrusion 26 is inserted into the engagement groove 22, the inclined wall surface 24 and the inclined wall surface 28 are moved relative to each other. At this time, the engagement groove 22 and the protrusion 2
Due to the so-called wedge effect between
8 is guided, and the protrusion 26 is inserted while being relatively moved in the direction of the step side surface 28. Therefore, the end surface 19 of the upper fruit part 15 and the step side surface 20 on the side of the lower fruit part 14 are more firmly attached. In the joined state as shown in FIG. A drainage space 34 is formed between the bottom surface 25 and the seal member 31 is compressed between the narrowest part 30 of the engagement groove 22 and the narrowest part 33 of the protrusion 26 .
In addition, the outer surface 1 of the butt part of each exterior plate 11, 11
Notches 35 and 36 are formed on the second side, respectively, and both the notches 35 and 36 form a concave groove. Further, both end surfaces of the exterior plate 11 in the other direction (direction perpendicular to the plane of paper in FIG. 1) are formed into planes perpendicular to the outer surface 12 or the inner surface 13,
As shown in FIG. 3, a joint joint fitting 37 is used and a sealing member 38 such as caulking material is filled.

The first embodiment of the present invention is constructed as described above, and at the joint portion between the lower fruit portion 14 and the upper fruit portion 15, the end surface 19 of the upper fruit portion 15 and the continuous portion are provided. The vertical wall surface 27, the step side surface 20 on the proximal end side of the lower fruit portion 14, and the continuous vertical wall surface 23 are made stronger by the so-called wedge effect of the engagement groove 22 and the protrusion 26. Because it is in close contact with
There is no chance of rainwater entering through the abutting portion, improving waterproofness, and also reliably blocking the entry of ultraviolet rays, thereby preventing deterioration of the sealing member 31 due to ultraviolet rays. Furthermore, since it is possible to prevent gaps from forming at the abutting portions, the design of the joints can be improved. Further, rainwater that has entered the interior due to the capillary phenomenon of close contact is drained to the outside through the drainage space 34, and subsequent entry into the interior is reliably prevented by the sealing member 31. Furthermore, the sealing member 31 is connected to the narrowest part 30 of the engagement groove 22 and the narrowest part 33 of the protrusion 26.
Because the structure is interposed between the narrowest part 33
Accordingly, the sealing member 31 can be compressed more reliably, and a reliable sealing function can be exhibited, and the waterproofness can be improved from this point as well.

Note that the above-mentioned dowel joint structure is not limited to the outer wall of the horizontally stretched structure, but may be used for the outer wall of the vertically stretched structure.

4 and 5 show the second and third embodiments of the present invention, in which grooves 39 and inclined surfaces 40 are formed at predetermined intervals on the outer surface 12 of the exterior plate 11. It is not limited to these shapes in any way.

(Effects of the invention) According to the invention, the protrusion portion whose width is gradually narrowed is fitted into the engagement groove whose width is gradually narrowed. Due to the wedge effect, the end face of the upper fruit part and the stepped side of the lower fruit part are more firmly attached, so there is no risk of rainwater entering from the butt part, improving waterproofness, and preventing the intrusion of ultraviolet rays. UV rays can be reliably blocked, and deterioration of the sealing member due to ultraviolet rays can be prevented. Furthermore, since it is possible to prevent gaps from forming at the abutting portions, it is possible to improve the design of the joints. In addition, rainwater that has entered the interior due to capillary action on the contact surface is effectively drained to the outside through the drainage space, and subsequent entry into the interior is reliably prevented by the sealing member. Furthermore, since the sealing member is interposed between the narrowest part of the engagement groove and the narrowest part of the protrusion, the sealing member can be compressed more reliably and a reliable sealing function can be achieved. It also has the advantage of improving waterproofness.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing the first embodiment of the present invention, Fig. 2 is a sectional view of the main part showing the state before joining, and Fig. 3 is a sectional view of the main part showing the joint of the end face in the same direction. , FIG. 4 and FIG. 5 are cross-sectional views showing the second and third embodiments, and FIG. 6 is a cross-sectional view showing a conventional example. 11... Exterior plate, 11a... Exterior plate main body, 12
...Outer surface of the exterior plate body, 13...Inner surface of the exterior plate body,
14...Lower fruit part, 15...Upper fruit part, 16...Outer surface of lower fruit part, 17...Inner surface of upper fruit part, 19...End face, 20...Step part side surface, 22...Engagement groove , 24...
... Inclined wall surface, 26 ... Protrusion portion, 28 ... Inclined wall surface, 30 ... Narrowest part of engagement groove, 31 ... Seal member, 33 ... Narrowest part of protrusion part, 34 ... Draining space .

Claims (1)

[Scope of utility model registration request] A joining structure of exterior plates in which a lower part formed at one end of the exterior plate body and an upper part formed at the other end of the adjacent exterior plate are jointed via a sealing member. In this case, an engagement groove that gradually becomes narrower toward the inner surface of the outer plate body is provided on the outer surface of the lower fruit portion, and a width gradually becomes narrower toward the inner surface of the outer shell body in order to fit into the engagement groove on the inner surface of the upper fruit portion. A narrow protrusion is provided, and the end face of the upper fruit part and the side surface of the outer plate main body side stepped part of the lower fruit part are in close contact, and a drainage space is created between the protrusion part and the engagement groove. and the protruding part is fitted into the engagement groove, between the lower end face side inclined wall surface and the narrowest part of the engaging groove and the exterior plate body side inclined face and the narrowest part of the said protruding part. A joining structure for exterior plates, characterized in that a sealing member is interposed in the exterior plate.