JPH0740012Y2 - Ceiling board joint structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a joint structure of ceiling plates in a ceiling structure that does not use a field edge or a field edge receiver.

(Prior Art) In a ceiling structure that does not use a field edge such as eaves ceiling, for example,
As shown in FIG. 3 (a), of the end portions in the front-rear direction of the ceiling board T indicated by the arrow in the figure, the end portion on the parting edge M side is raised H.
In addition, the end portion on the wall W side is supported by a supporting member N having a U-shaped cross section. Then, the joining of the ceiling plates in the left-right direction, which is perpendicular to the front-rear direction, is performed using the technique of Ai-Jakuri A (see Fig. 3 (a)) or Zon Z (see Fig. 3 (b)) as necessary. In general, it is generally performed by screwing appropriately.

Further, as shown in FIG. 3 (c), a groove is formed at a side end portion of the ceiling plate T, and a piece of H-shaped steel O is put in a groove space K formed when the side end portions are joined to each other, and a screw is fastened. You can also see what you do.

(Problems to be solved by the invention) However, in the former joint structure, the head of the screw can be seen from the lower room by hitting the screw from below, and the aesthetics of the ceiling is spoiled.

Also, when the board itself has a warp, when the mating surfaces of the ceiling boards are in contact with each other, warping occurs on the ceiling. Since many ceiling plates are affected, there is a problem that even if the ceiling is sagging or warped, it cannot be prevented. In the case of Ai-Jakuri, some of the ceiling boards have reinforcements such as square timbers and square pipes attached along the joints to deal with warpage and sagging. Since it can only be screwed from the body, it is impossible to eliminate the uncleanness.

The latter structure is effective in preventing warpage and the like due to the use of steel, but has a problem that it cannot be used for a ceiling plate such as a calcium silicate plate where it is difficult to form a groove on the side edge.

The purpose of the present invention is that when the ceiling boards are fitted together without using a field rim, the driven screws are not visible from the lower interior side without causing warping or sagging on the ceiling boards. It is to provide a combined structure of ceiling panels that keeps the appearance and enhances the appearance.

(Means for Solving the Problem) In order to achieve the above-mentioned object, the ceiling board joining structure by the interlocking mechanism in the present invention uses an upper horizontal piece, a lower horizontal piece, and end portions of both horizontal pieces by a strip material. A reinforcing plate formed in a crank shape in cross section having a rising piece that is integrally connected is interposed at a joint portion between the ceiling plate side end portions. The upper horizontal piece of the reinforcing plate is fixed to the upper surface of the ceiling plate facing the corresponding cutout of the one ceiling plate having the cutout on the upper surface side, and the lower horizontal piece and the rising piece of the reinforcing plate are the phases of the one ceiling plate. It is in contact with the notch forming surface. And
On the surfaces of the lower horizontal piece and the rising piece of the reinforcing plate, the side ends of the other ceiling plate having a recess on the lower surface side are supported, and the side ends of both ceiling plates are joined together.

The reinforcing plate formed of the band plate material may have a shape including an upper horizontal piece, a lower horizontal piece, and a rising piece integrally connecting one side end of the lower horizontal piece to a widthwise intermediate portion of the upper horizontal piece. In this case, one half of the upper horizontal piece extending in the extension direction of the lower horizontal piece is fixed to the top surface of the ceiling plate facing the cutout of one ceiling plate having the cutout on the upper surface side. Also,
The lower horizontal piece and the rising piece of the reinforcing plate are brought into contact with the cutout forming surface of the one ceiling plate, and the other ceiling plate having a cutout on the lower surface side on the surface of the lower horizontal piece and the rising piece of the reinforcing plate. Of the ceiling plate is supported by the lower horizontal piece and the other half of the upper horizontal piece extending in the same direction as the lower horizontal piece, and the side edges of the other ceiling plate are sandwiched by the side edges of the other ceiling plate. In this structure, the rising pieces of the reinforcing plate are arranged so that they stand up in the thickness direction of the ceiling board at the joints of the two ceiling board side ends. Even if the plate warps or sags, the entire reinforcing plate resists this and prevents this phenomenon from occurring. Further, the member that reinforces the spliced portion is formed of a strip plate material, and fixing to the end portion on the ceiling plate side is also made with a screw from above the upper horizontal piece, so that even when joined, the screw cannot be seen from below.

(Embodiment) FIG. 1 shows a state in which ceiling plates 1a and 1b are joined together by a seaming structure according to a first embodiment of the present invention, as seen from diagonally above in the front-back direction of the ceiling indicated by the arrow in the figure. FIG.

The side end portions of both ceiling plates 1a and 1b are processed by the phase notch processing so that they can be joined together by mutual phase matching. A reinforcing plate 2 formed of steel or a hard synthetic resin strip in a crank shape in cross section is interposed between the side ends of both plates along the lengthwise direction of the side ends. The upper horizontal piece 2a of the reinforcing plate 2 is brought into contact with the top surface of the ceiling plate 1a of the one ceiling plate having a top surface with a recess, the top surface facing the recess.
It is fixed with screws 3 or an adhesive at appropriate intervals.

Then, the lower horizontal piece 2c of the reinforcing plate 2 and the rising piece 2b that is integrally erected from one end of the lower horizontal piece 2c are the above-mentioned one ceiling plate.
It is in contact with the step surface forming the phase cutout 1c of 1a. The side ends of the other ceiling plate 1b having the notches formed on the lower surface side are assembled so as to be pressed against the surfaces of the lower horizontal piece 2c and the rising piece 2b of the reinforcing plate 2. This allows
The lower horizontal piece 2c and the rising piece 2b of the reinforcing plate 2 are sandwiched by the side ends of the left and right ceiling plates 1a and 1b that are spliced together.

FIG. 2 is a perspective view showing a second embodiment, in which both ceiling plates 11a, 11
Similar to the above-mentioned embodiment, the side end portion of b is subjected to the phase cutout process for the phase shift joint. The reinforcing plate 12 is also formed of a strip plate material, and is composed of a lower horizontal piece 12d, a rising piece 12a standing upright from one end of the lower horizontal piece 12d, and an upper horizontal piece extending horizontally from the upper end of the rising piece 12a. The upper horizontal piece is composed of a piece 12b extending in the extension direction of the lower horizontal piece 12d and a piece 12c extending in the same direction as the lower horizontal piece 12d as in the above embodiment. One half portion 12b of the upper horizontal piece extending in the extension direction of the lower horizontal piece 12d is fixed by a screw or the like to the ceiling plate upper surface facing one of the ceiling plates 11a having the upper surface side with the groove.

Further, the lower horizontal piece 12d and the rising piece 12a are in contact with the phase cutout forming surface of the one ceiling plate 11a. Then, on the surface of the lower horizontal piece 12d and the rising piece 12a, the other ceiling plate 11b is formed.
Is supported, and the lower horizontal piece 12d and the other half 12c of the upper horizontal piece sandwich this side end. When the other half portion 12c of the upper horizontal piece is bent downward in a substantially V shape to impart springiness, the side end portion of the other ceiling plate 11b can be elastically held by the reinforcing plate 12.

(Effects of the Invention) As described above, according to the present invention, a reinforcing plate is interposed at a side end portion of a ceiling plate that is to be spliced, and a rising plate of the reinforcing plate is provided at a side end portion of the ceiling plate. Since it is erected and fixed in the thickness direction of the stand, even though it is simply a plate material interposed, the rising piece and both horizontals against the acting force in the direction that causes the ceiling plate to warp or sag. One piece resists and this can be avoided as much as possible.

Further, since the reinforcing plate fixes the upper horizontal piece to the upper surface of one of the ceiling plates, the heads of the screws are not exposed on the lower surface of the ceiling plate, and the simple ceiling does not use a field rim, It can provide a nice-looking ceiling structure.

Further, according to the invention of the second aspect, since the side end portion of the other ceiling plate can be securely sandwiched by the reinforcing plate, it is possible to further contribute to avoiding warpage and sagging of the entire ceiling surface.

[Brief description of drawings]

1 is a perspective view showing an embodiment according to the present invention, FIG. 2 is a perspective view showing another embodiment, FIG. 3 (a) is a perspective view showing a conventional ceiling structure, FIG. FIG. 1C is a sectional view showing a conventional ceiling plate combination. 1a, 11a …… One ceiling plate, 1b, 11b …… The other ceiling plate, 2,
12 …… Reinforcement plate, 2a, 12b, 12c …… Upper horizontal piece, 2c, 12d ……
Lower horizontal piece, 2b, 12a ... Rising piece,

Claims (2)

[Scope of utility model registration request] 1. A ceiling-plate joining structure in which side edges of ceiling plates are joined together by phase-shifting, and an upper horizontal piece, a lower horizontal piece, and end portions of both horizontal pieces are integrally formed by a strip material. A reinforcing plate formed into a crank shape in cross section having a connecting rising piece is provided at a joint portion between the ceiling plate side ends, and the upper horizontal piece of the reinforcing plate is notched on the upper surface side. Is fixed to the top surface of the ceiling plate facing the recess of one of the ceiling plates, and the lower horizontal piece and the rising piece of the reinforcing plate are brought into contact with the face forming surface of the one ceiling plate, the lower horizontal portion of the reinforcing plate. The ceiling board joining structure in which the side edges of the other ceiling board, which has a cutout on the lower surface side, are supported on the surface of one piece and the rising piece, and the side edges of both ceiling boards are joined together. 2. A ceiling plate joint structure in which side edges of ceiling plates are joined together by interleaving, and one side end of an upper horizontal piece, a lower horizontal piece, and a lower horizontal piece is made into an upper horizontal piece by a strip material. An upper part extending in the extension direction of the lower horizontal piece is formed by interposing a reinforcing plate having a rising piece integrally connected to the middle part in the width direction of the piece at the joint of the ceiling plate side end parts. One half of the horizontal piece
The ceiling plate is fixed to the upper surface of the ceiling plate facing the recess of one of the ceiling plates having the recess on the upper surface side, and the lower horizontal piece and the rising piece of the reinforcing plate are contacted with the recess forming surface of the one ceiling plate, The lower horizontal piece and the other half of the upper horizontal piece that extends in the same direction as the lower horizontal piece and the rising piece are made to support the side edges of the other ceiling plate that has a cutout on the lower surface side. The ceiling board joining structure in which the side edges of the other ceiling board are sandwiched and joined together while sandwiching the side edge of the other ceiling board.