JPS6222587Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention provides an inner inclined surface 4 that slopes inward on one side of a construction board 3 formed by filling a heat insulating material 2 on the back side of a front surface board 1 with an opening on the back side. A fitting recess 5 is provided on the back surface of the construction board 3 on the inside of the slope 4, and an outside slope 6 is provided on the other side of the construction board 3, which is substantially parallel to the inside slope 4 and slopes outward. A fitting convex portion 8 protruding toward the front side is provided on an extending piece 7 formed to extend outward from the back side end of the outer inclined surface 6, and the fitting convex portion 5 and the fitting convex portion are provided in a protruding manner. The inner inclined surface 4 and the outer inclined surface 6 are made to face each other so that the two architectural boards 3 are connected, and the inner inclined surface 4 and the outer inclined surface 6 are interposed between the inner inclined surface 4 and the outer inclined surface 6. This invention relates to a construction board joining structure in which a soft packing 10 is provided protruding from either the inner inclined surface 4 or the outer inclined surface 6.

A conventional example is shown in FIG. That is, a recessed step 11 was provided on one side of the building board 3' filled with the heat insulating material 2, and a fitting protrusion 12a was protruded from the recessed step 11 and protruded from the other side of the building board 3'. Both building boards 3', 3' are connected by fitting the two fitting projecting pieces 12b, 12b and the above-mentioned fitting projecting piece 12a and facing the side surfaces of both building boards 3', 3'. Was. However, in the above conventional example,
Both building boards 3', 3' tend to shift to both sides, and if a gap is created between the sides of both building boards 3', 3' due to the shifting of both building boards 3', 3', the two building boards 3', 3' will not fit properly. Joint piece 1
There is also a gap between 2a and 12b, which deteriorates the airtightness.Moreover, the joint between the building boards 3 and 3 is not filled with the heat insulating material 2, so the joint between the building boards 3 and 3 is not filled with the heat insulating material 2. The drawback was that the insulation properties were reduced.

In view of the above points, the present invention provides a joint structure for architectural boards that does not easily shift between the two architectural boards, has good airtightness, and does not cause deterioration of heat insulation at the joint of the architectural boards. The purpose is to

The invention will be explained in detail based on the illustrated embodiments. That is, the building board 3 is formed by filling a heat insulating material 2 made of urethane resin on the back side of a front board 1 which is made of molded hard polyvinyl chloride and has an opening on the back side. The side surface of this surface board 1 is an inner inclined surface 4 that slopes inward. On the inside of this inner inclined surface 4, on the back surface of the construction board 3, a fitting strip 13 is provided at the lower end of the inner inclined surface 4. The edge is integrally formed with the surface plate 1 over substantially the entire length. A fitting recess 5 that is open on the back side and has a plurality of stages of engaged portions 14 is provided in the fitting strip 13 over substantially the entire length of the fitting strip 13 . On the other hand, the other side surface of the building board 3 is an outer inclined surface 6 that is substantially parallel to the inner inclined surface 4 and inclined outward.
An extending piece 7 is integrally extended outward from the end of the back side of the building board 3, and a fitting convex portion 8 is formed from the extending piece 7 toward the front side of the building board 3. It is integrally protruded over almost the entire length. The fitting convex portion 8 has a plurality of stages of engagement portions 15 corresponding to the fitting recesses 5. Further, a soft packing 10 made of polyvinyl chloride is protruded outward over substantially the entire length of the front edge of the inner inclined surface 4.
This soft packing 10 may protrude from the front edge of the outer inclined surface 6. Therefore, in order to join the architectural boards 3 constructed as described above, the following procedure is performed. The architectural board 3 is fixed by nailing the extending piece 7 to the wall surface 16, and the engaging part 15 provided on the fitting convex part 8 of this architectural board 3 is fitted to the adjacent architectural board 3. so that the engaged parts 14 provided in the recessed part 5 are engaged with each other, and the fitting convex part 8 and the fitting recessed part 5 are fitted,
Inner inclined surface 4 and outer inclined surface 6 of both building boards 3, 3
The two architectural boards 3, 3 are connected so that they face each other face to face. At this time, the soft packing 10 is interposed between the inner inclined surface 4 and the outer inclined surface 6 so as to press against the outer inclined surface 6. Therefore, the soft packing 10 not only improves the watertightness at the joint between the two building boards 3, 3, but also prevents the projecting part from extending over substantially the entire length of the extension piece 7 even if water intrudes into the joint. The fitting convex portion 8 serves as a drain and prevents water from leaking to the back surface of the construction board 3.

Thus, in the present invention, a fitting recess is provided inside the inner inclined surface provided on one side of the building board filled with a heat insulating material, and an extension extending from the outer inclined surface provided on the other side is provided. A fitting protrusion is provided on the projecting piece, and the inner inclined surface and the outer inclined surface are made to face each other so that the fitting recess and the fitting protrusion are fitted, thereby connecting two architectural boards. Since the soft packing is interposed between the inner inclined surface and the outer inclined surface, the architectural board can be fixed to a wall surface, etc., and the architectural board placed adjacent to the fitting convex part of the architectural board can be fixed to the wall surface. If the fitting convex parts of the boards are fitted, the building board will not shift laterally due to the uneven fitting, and since the soft packing is interposed between the two building boards, both building boards will fit together. It has the advantage of good airtightness with no gaps at the joints of the construction boards, and when the construction boards are installed, the outer sloped surface and the inner sloped surface face each other, Therefore, a heat insulating material is interposed between the front surface and the back surface of the building board, which has the effect of preventing a decrease in heat insulation properties at the joints of the building board. Therefore, as shown in Figure 4, the vertical surfaces (indicated by arrows) of building boards are always filled with insulation material, so there is no need to reduce the insulation properties at the joints as in the past. It has the advantage of not being

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a conventional example, FIG. 2 is a sectional view of an embodiment of the present invention, and FIG. 3 is an enlarged sectional view of the same essential parts.
FIG. 4 is a schematic explanatory diagram of the same as above, and 1 is a surface plate, 2 is a heat insulating material, 3 is a construction board, 4 is an inner slope, 5 is a fitting recess, 6 is an outer slope, and 7 is a The extending piece 8 is a fitting convex portion, 9 is a fitting recess, and 10 is a soft packing.

Claims (1)

[Scope of utility model registration request] An inwardly sloped surface is provided on one side of the construction board formed by filling the back side of the front surface board with the opening on the back side with a heat insulating material, and a fitting recess is formed on the back surface of the construction board on the inside of this inside slope. is recessed, and an outer inclined surface is provided on the other side of the construction board that is substantially parallel to the inner inclined surface and inclined outward, and an extension is formed extending outward from the back side end of the outer inclined surface. A fitting convex portion protruding toward the surface side is provided on the piece, and the inner inclined surface and the outer inclined surface are made to face each other so that the fitting concave portion and the fitting convex portion are engaged with each other. A joint structure for architectural boards, which connects the boards and includes a soft packing interposed between the inner and outer slopes, which protrudes from one of the inner and outer slopes.