JPH0321387Y2 - - 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 building boards as described above, especially when connecting building boards made of inorganic materials, cracks will occur if nails are driven directly into the building board. The construction board 1 is fitted onto both sides of the joiner 2 using a joiner 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. 3. Two types are generally used: one called construction. However, in the former, there is a problem with the waterproofness between the joiner 2 and the building board 1, and in the latter, the width of the joint must be adjusted, and the expansion and contraction of the building board 1 causes the joint to break. There is a risk that the waterproofness may decrease and the architectural board may warp or crack.

[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 groove is formed on one of a pair of mutually opposing side end surfaces of a pair of adjacent construction boards, and a protrusion is formed on the other side to be inserted into the groove together with a jointer, and both surfaces of this protrusion and the inner surface of the groove are formed. It is characterized in that the gasket interposed between the grooves is provided with a small protrusion that contacts the inner surface of the groove and urges the projecting piece toward the joiner, and a large protrusion that comes into elastic contact with the pair of opposing surfaces, respectively. Yes, the construction boards are connected by mortise and tenon joints using protrusions and grooves, and at the same time, the joiners are not exposed on the surface of the construction boards.
Furthermore, multiple waterproofing treatments using packing are performed within this connection portion.

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. The protruding piece 7 is covered with a packing 3. The gasket 3 that covers both sides and the tip of the protruding piece 7 has a small protrusion 8 and a large protrusion 9 with a large tip protruding integrally from the front side of the construction board 1 toward the front. It is set up.

When connecting a pair of adjacent building boards 1,
First, the joiner 2 is fixed to the surface to be attached, and the seal 3 is placed on the projecting piece 7 of the construction board 1. Then, overlap the fitting piece 6 of the joiner 2 and the projecting piece 7 of the building board 1 so that they are inserted into the groove 5 of the adjacent building board 1, and then
. As a result, the packing 3 placed on the projecting piece 7 is interposed between this projecting piece 7 and the inner surface of the groove 5 of the other building board 1, and the fitting piece 6 of the jointer 2 is inserted into the groove 5. At the same time, the small protrusion 8 is brought into elastic contact with the front inner surface of the groove 5, and the large protrusion 9 is positioned between both building boards 1, and the side end faces of these building boards 1 are pressed. Large protrusion 9
This increases the contact pressure between the protruding piece 7 and the inner surface of the groove 5, increasing the connection strength between the two building boards 1 and making it waterproof. Since it has small protrusions 8 and large protrusions 9, it is highly waterproof. Further, the small protrusions 8 on the packing 3 also align the surface level of the construction board 1 having the grooves 5. 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.

[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 causing warping or cracking, and in addition, there is a packing between both sides of the protrusion and the inner surface of the groove, and the large protrusion is It is multi-layered because it is in elastic contact with the opposing side end surfaces of the joining plate and the small protrusion pushes the projecting piece toward the jointer side, and because of this, it is possible to obtain extremely good waterproofness. Moreover, the connection strength is increased by the seal, and since there are large protrusions and the jointer does not appear on the surface, the appearance is good.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of one embodiment of the present invention, Fig. 2 is a sectional view of a conventional example, and Fig. 3 is a sectional view of another conventional example. In the packing, 5 is a groove, 6 is a fitting piece, and 7 is a protruding piece.

Claims (1)

[Scope of utility model registration request] A groove is provided on one of a pair of mutually opposing side end surfaces of a pair of adjacent construction boards, and a protrusion is formed on the other side to be inserted into the groove together with a joiner, and both surfaces of this protrusion and the inner surface of the groove are formed. A construction board connection structure comprising a gasket interposed therebetween, which is provided with a small protrusion that contacts the inner surface of the groove and urges the projecting piece toward the joiner, and a large protrusion that comes into elastic contact with the pair of opposing surfaces, respectively.