JPS6143865Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a connection structure for architectural boards, and consists of the left and right opposing receiving pieces 4 of a receiving member 3 having a U-shaped cross section, the bottom piece 2 of which is attached to a base material 1 such as a ceiling. A locking protrusion 7 having a sawtooth cross-sectional engaging portion 5 formed on the inner surface and protruding from the outer surface of the opposing receiving piece 4 is inserted into a recess 12 provided on the end face of the left and right architectural boards 6 to form a construction board. 6, and the outer surfaces of the left and right opposing pieces 9 of the cover member 8, which has a square-shaped cross section and whose both ends are engaged with the concave step portions 13 provided at the ends of the front surfaces of both building boards 6. This relates to a construction board connection structure in which an engaging portion 10 having a sawtooth cross section is formed and the engaging portion 10 having a sawtooth cross section is engaged with the engaging portion 5 having a sawtooth cross section of the opposing receiving piece 4. be.

Conventionally, the structure that connects the left and right building boards 6 is the first
As shown in the figure, the locking protrusions 7a bent at both ends of the connecting member 3a having a U-shaped cross section are inserted into the recesses in the end faces of the left and right building boards 6, and engaged with both building boards 6. The end surfaces of the two were butted against each other and abutted against each other. However, when the architectural board dries and shrinks due to changes in indoor temperature and humidity, a gap A is created at the butt abutment area, resulting in an unsightly appearance.

The present invention was developed in view of this problem, and its purpose is to provide a connecting member that connects the left and right building boards with a covering member that covers the front end of both building boards. Therefore, it is an object of the present invention to provide a connection structure for architectural boards that can cover up even if a gap occurs at the joint between the two architectural boards due to changes in temperature and humidity.

Embodiments of the present invention will be described in detail below based on illustrative drawings. Reference numeral 3 denotes a long receiving member having a U-shaped cross section, the bottom piece 2 of which is attached to a base material 1 such as a ceiling using fixing devices such as screws 11, and the opposing receiving piece 4 has a serrated cross section on its inner surface. An engaging portion 5 is formed respectively.
A locking protrusion 7 is provided at the upper and lower intermediate portions of the outer surface of the opposing receiving piece 4.
is formed over its entire length. Reference numeral 8 denotes a cover member having a square cross-section, and a pair of opposing pieces 9 are vertically disposed on the back surface of the elongated plate over the entire length thereof. A serrated engagement portion 10 is formed.

As shown in FIG. 3, the bottom piece 2 of the receiving member 3 is attached to the base material 1 such as the ceiling or wall with screws 11, and the bottom piece 2 of the receiving member 3 is attached to the end face of the left and right building boards 6 over the entire length in the longitudinal direction. The left and right building boards 6 are connected by fitting the recess 12 into the locking protrusion 7 of the receiving member 3 and making the end face of the building board 6 come into contact with the outer surface of the opposing receiving part 4. Then, the pair of opposing pieces 9 of the cover member 8 are inserted between the opposing pieces 4 of the receiving member 3 to engage the engaging portion 10 having a serrated cross section on one side with the engaging portion 5 having a serrated cross section on the other side, and at the same time Both end portions of the member 8 are placed in recessed step portions 13 provided at the ends of the left and right building boards 6, and both end portions of the cover member 8 are engaged with the bottom surfaces of the recessed step portions 13.

Therefore, even if the building board 6 shrinks due to changes in indoor temperature and humidity, the occurrence of the gap can be hidden by the cover member 8 that is attached to the recessed step 13 of the building board 6. . In this embodiment, the elastic protrusions 14 provided on the back side of both ends of the cover member 8 over the entire length in the longitudinal direction are connected to the concave stepped portions 13 of the building board 6.
It is in contact with the bottom surface of the housing, increasing airtightness.

As described above, in the present invention, an engaging portion having a serrated cross section is formed on the opposing receiving piece of a receiving member having a U-shaped cross section attached to a base material, and the engaging portions having a serrated cross section are engaged with each other on this opposing receiving piece. By fitting the cover member with matching opposing pieces to the receiving member, both ends of the cover member cover the front side ends of the left and right construction boards, so the left and right construction boards Even if the board shrinks or warps due to changes in temperature and humidity, the edges can be covered, and the gap between the left and right architectural boards can no longer be seen from the outside, unlike in conventional cases. In addition, since the opposing receiving piece of the receiving member and the opposing piece provided with the cover member have an engagement structure with a sawtooth cross-section engaging portion in the insertion and engagement direction, the receiving member has the advantage of It has the advantage that the engagement position can be changed, and therefore variations in the thickness of the building boards can be absorbed and airtightness can be improved. Since both ends of the cover member are engaged with the provided recessed step portions, the cover member does not protrude from the surface of the construction board, resulting in a good appearance, and the engaging portion of the opposing piece of the cover member has a serrated cross section. Even if the engagement depth of the serrated engagement section of the opposing receiving piece is shallow and a gap is created between the bottom of the recessed step and the cover member, or the engagement loosens over time and a gap is created, There is an advantage that both end portions of the cover member are located within the recessed stepped portion, and the gap between them is not visible, resulting in a good appearance.

[Brief explanation of drawings]

FIG. 1 is a sectional view of the conventional example, FIG. 2 is a sectional view of the present invention in which the cover member is engaged with the receiving member, and FIG. 3 is a sectional view of the same in the construction state. 1 is a base material, 2 is a bottom piece, 3 is a receiving member, 4 is an opposing receiving piece, 5 is a sawtooth cross-section engagement part, 6 is a construction board,
7 is a locking protrusion, 8 is a cover member, 9 is a facing piece, 10
12 is a recess, and 13 is a recessed step.

Claims (1)

[Scope of utility model registration request] A receiving member with a U-shaped cross section whose bottom piece is attached to a base material such as a ceiling, has an engaging part with a sawtooth cross section formed on the inner surface of the left and right opposing receiving pieces, and a locking projection protruding from the outer surface of the opposing receiving piece. were inserted into the recesses provided on the end faces of the left and right construction boards to lock the construction boards, and both ends were secured to the recessed portions provided at the ends on the front side of both construction boards. An engaging portion having a serrated cross section is formed on the outer surface of the left and right opposing pieces of the cover member having a cross section, and the engaging portion having a serrated cross section is engaged with the engaging portion having a serrated cross section of the opposing receiving piece. Connecting structure of architectural boards.