JPH0321386Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a connection structure for architectural boards used as the ceiling and walls of a chamber.

[Background Art] Regarding the connection of the above-mentioned building boards, especially the connection of building boards made of inorganic materials, cracks will occur if the building boards are directly nailed, so The construction board 1 is fitted onto both sides of the joiner 2 using a jointer 2 with a cross-section as shown in the figure, and the construction board 1 is inserted between the construction boards 1 as shown in FIG. 5. Two types are generally used: one called construction. However, in the former case, there is a problem with the waterproofness between the joiner 2 and the construction board 1, and the joiner appears largely on the surface of the construction board to absorb the expansion and contraction of the construction board, resulting in problems with the finish. In the latter case, the width of the joints must be adjusted, and there is a risk that the expansion and contraction of the building board 1 may cause the joints to break, resulting in a decrease in waterproofness and warping or cracking of the building board. There is.

[Purpose of the invention] The present invention was devised in view of the above points, and its purpose is to not only have good waterproofness but also to eliminate the need for adjusting the joint width.
In addition, it does not cause warping or cracking of architectural boards.
Furthermore, it is an object of the present invention to provide a connection structure for architectural boards that has a good appearance.

[Disclosure of the invention] However, the construction board connection structure according to the invention is as follows:
A jointer in which a groove is formed on one of a pair of opposing side end surfaces of a pair of adjacent construction boards, a protrusion is formed on the other to be inserted into the groove, and one piece is fixed to a surface to be attached such as a wall surface. The piece is inserted into the groove and located in the groove together with the protruding piece, and is characterized by having a packing that comes into elastic contact with the inner surface of the groove or the protruding piece. At the same time, the jointer is not exposed to the surface of the construction board, and at the same time, the jointer is waterproofed with a packing inside this joint.

The present invention will be described in detail below based on the illustrated embodiment. As shown in FIG. A projecting piece 7 having a thickness smaller than the opening width of the groove 5 is provided. Joyner 2
is a Z-shaped fitting piece 6 whose tip protrudes laterally, and gaskets 3 are attached to both sides of the tip of the fitting piece 6.

When connecting a pair of adjacent building boards 1,
First, the joiner 2 is fixed to the surface to be attached. Then, the fitting piece 6 of the jointer 2 and the projecting piece 7 of the building board 1 are overlapped, and the building board 1 is arranged so that these are inserted into the groove 5 of the adjacent building board 1. It is. In this way, the packing 3 comes into elastic contact with the inner surface of the groove 5 of one of the construction boards 1, and also with the surface of the protrusion 7, increasing the contact pressure between the protrusion 7 and the inner surface of the groove 5, so that both construction boards In addition to increasing the connection strength of No. 1, it is also waterproof.

Regarding the expansion and contraction of the construction board 1, since both construction boards 1 are attached to the surface to which they are attached by jointers 2, the construction board 1 can expand and contract freely. At the same time, there is no change in appearance except that the width of the groove that appears between the surfaces of both building boards 1 changes due to expansion and contraction. Moreover, since the joiner 2 is located on the back side of the protruding piece 7, and neither the joiner 2 nor the seal 3 appears on the surface, the joint is extremely natural.

In the embodiment shown in FIG. 2, the gasket 3 provided on the fitting piece 6 of the joiner 2 comes into elastic contact only with the protrusion 7, and in the embodiment shown in FIG. Although the packing 3 is assumed to come into elastic contact only with the inner surface of the holder, the same effects as in the above embodiment can be obtained also in these cases.

[Effects of the invention] As described above, in the present invention, the construction board is attached by the jointer, and at the same time, the jointer is connected by fitting the groove and the protrusion in both construction boards. Therefore, the construction board can expand and contract freely, without warping or cracking, and in addition, the piece that is inserted into the groove of the other construction board together with the protrusion of one construction board in the joiner. In addition, since it is equipped with a packing that makes elastic contact with the inner surface of the groove or the protruding piece, it has high waterproofness, and the presence of the joiner and packing increases the connection strength. Since it does not appear on the surface, it is possible to obtain natural joints.

[Brief explanation of the drawing]

Figures 1a and b are a sectional view and an enlarged sectional view of one embodiment of the present invention, Figure 2 is a sectional view of another embodiment, Figure 3 is a sectional view of still another embodiment, and Figure 4 is a conventional A sectional view of the example, FIG. 5 is a sectional view of another conventional example, 1
is a construction board, 2 is a jointer, 3 is a patch skin, 5
indicates a groove, 6 indicates a fitting piece, and 7 indicates a protruding piece.

Claims (1)

[Scope of utility model registration request] A jointer in which a groove is formed on one of a pair of opposing side end surfaces of a pair of adjacent construction boards, a protrusion is formed on the other to be inserted into the groove, and one piece is fixed to a surface to be attached such as a wall surface. A construction plate connection structure comprising: a piece inserted into the groove and located in the groove together with the protruding piece; and a packing that makes elastic contact with the inner surface of the groove or the protruding piece.