JPS5830983B2 - Architectural board joint device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a joint device for architectural boards having excellent waterproof properties.

In the conventional example, as shown in FIG. 1, one side edge of the construction board main body 1 is bent in an L-shape to form the insertion piece part 6, and the other side edge is bent in a Z-shape to form an outer side edge. The construction board 5 was constructed by forming an insertion groove 7 that opens into the insertion groove 7 and inserting the insertion piece 6 of one adjacent construction board into the insertion groove 7 of the other. Since both the groove 7 and the insertion piece 6 are hard, a gap is formed between the groove 7 and the insertion piece 6 during insertion, and water can enter the inside through the gap.

The present invention was made in view of the drawbacks of the conventional example, and
A first object of the present invention is to arrange an elastic soft sheet-like material extending from the same side edge in a concave groove formed on the side edge of the main body of the building board, and to lay the material adjacent to the side edge of the main body of the building board. The second objective is to provide a joint device for a construction board that can completely prevent water leakage by inserting the protrusions from above the elastic soft sheet material into the grooves. To provide a joint device for a building board that can be easily placed in a groove because the soft sheet-like material extends from one side edge of the main body of the building board.

The present invention will be described in detail below according to illustrated embodiments.

The construction board main body 1 is in the form of a flat plate, and has a protrusion 2 extending rearward over the entire length of the negative side edge.

The protrusion 2 is wide and has an arcuate tip.

The other side edge of the construction board main body 1 is bent in a U-shape over its entire length, forming a groove 3 with a front opening, and an elastic soft sheet-like material 4 is integrally formed along the entire length of this bent line 8. It is an extension.

The construction board body 1, the protrusions 2, and the groove portion are made of, for example, hard polyvinyl chloride or aluminum sash, and the elastic soft sheet material 4 is made of soft vinyl chloride, rubber, or the like.

The construction boards 5 are arranged adjacent to each other on the base material 9, and the bottom part 10 of the concave groove 3 of one of the construction boards 5 is connected to the base material 9.
After sealing, the elastic soft sheet material 4 is placed in the groove 3, and then the protrusion 2 of the other construction board 5 is elastically inserted into the groove 3 from above the elastic soft sheet material 4. Enter.

In this case, since the inner dimension of the groove 3 is slightly smaller than the sum of the outer dimension of the protrusion 2 and the wall thickness of the elastic soft sheet material 4, the crimping by the elastic soft sheet material 4 at the fitting portion and the groove The dual effect of the elasticity of the three parts increases waterproofness.
Furthermore, the elastic soft sheet material 4 protrudes outward from the groove 3, and the edge portion 11 of the groove 3 and the construction board main body 1 strongly sandwich the elastic soft sheet material 4, making this part waterproof as well. This is to increase the effectiveness.

Further, the protrusion 2 may be made hollow or elastic so that it can be fitted into the groove 3 more easily.

In addition, since the elastic soft sheet material 4 extends beyond the bent edge 8, it is easy to simply fold it into the groove 3 with the end of the elastic soft sheet material 4 on the bent edge 8 side as a reference during construction. It can be installed in

In addition, if the elastic soft sheet material 4 is pleated and the protruding ridges 2 are inserted into the grooves 3, a small gap 12 is provided between the elastic soft sheet material 4 and the protruding ridges 2, so that the drainage effect can be improved. It is something that can be improved.

As described above, the present invention extends an elastic soft sheet-like material longer than the length in the width direction of the groove along the groove from the bent edge of the groove opening, and arranges the elastic soft sheet-like material inside the groove. Since the protrusion is inserted into the groove from above the elastic soft sheet material, the gap between the protrusion and the inner periphery of the groove is filled with the elastic soft sheet material over the entire length. Eliminate back-and-forth and left-right wobbling between the protrusions and grooves due to dimensional errors, and ensure water retention over the entire width of the joint between architectural boards (between the protrusions and grooves). There is an effect that can be done.

Furthermore, the tip of the elastic, soft sheet-like material disposed in the groove is pushed out beyond the edge of the groove, and the protrusions are inserted into the groove from above the elastic, soft sheet-like material. The elastic soft sheet-like material is strongly sandwiched between the edges of the grooves and the main body of the building board, and a high waterproofing effect can be obtained in this part.

[Brief explanation of the drawing]

Fig. 1 is a front view of a conventional example, Fig. 2 is a front view of an embodiment of the present invention, and Fig. 3 is a partially enlarged front view of the same construction state.
1 is a construction board main body, 2 is a protrusion, 3 is a groove, 4 is an elastic soft sheet-like material, 5 is a construction board, and 8 is a bent edge.

Claims (1)

[Claims] 1 A protrusion is provided on one side edge of the construction board body to project backward, and a groove with a front opening is formed on the other side edge, and a groove is formed along the groove from the bent edge of the groove opening. An elastic soft sheet-like material that is longer than the length in the width direction of the groove is extended, and the elastic soft sheet-like material is placed in the groove so that its tip extends beyond the edge of the groove, and the elastic soft sheet-like material is placed adjacent to the groove. A joint device for construction boards, characterized in that the protrusions of the construction boards to be laid are inserted into grooves from above an elastic soft sheet-like material.