JP3018406U - Corner material for decorative boards made of synthetic resin - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a corner material that is used to stretch a synthetic resin decorative plate on the ceiling surface and that does not look bad even if expansion due to linear expansion of the decorative plate due to temperature change occurs. To do. [Structure] A base member 2 having a female fitting portion 5 formed at one end of a mounting piece 4, a holding blade piece 8 and a cover member 3 having a male fitting portion 9 formed at one end. A corner material is used in which a first hollow elastic body 6 is bulged on the bottom of a groove 11 formed by a piece 8 and a second hollow elastic body 7 is bulged on the first hollow elastic body 6. As a result, the linear expansion of the decorative plate 12 can be absorbed by the first hollow elastic body 6 and the second hollow elastic body 7.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a corner material for absorbing linear expansion of a synthetic resin decorative plate stretched over a ceiling surface.

[0002]

[Prior art]

 Conventionally, a synthetic resin decorative plate has been used as an interior material stretched over a ceiling surface or a wall surface of a building. The decorative plate has a width of about 100 mm to 300 mm, and when it is used as an interior material, the side ends of the decorative plate are continuously fitted and connected in the longitudinal direction and stretched. As shown in FIG. 4, the corner material used to easily fit the corner portion of the decorative plate is a base material having a female fitting portion formed at one end of a mounting piece to be mounted on the ceiling surface and the decorative plate is sandwiched. The holding piece is formed of a cover material having a male fitting portion formed at one end, and when the base material and the cover material are fitted together, a recessed groove is formed by the mounting piece and the holding piece.

[0003]

[Problems to be solved by the device]

 To install such a decorative board made of synthetic resin, attach the base material to the base material such as the edge of the ceiling surface at the corner between the ceiling surface and the wall surface, then fit the cover material to the base material. Form the corner material. Then, first, the side edges of the first decorative plate are inserted and sandwiched in the groove, and then the side edges of the decorative plate are fitted and connected to each other in order and stretched on the ceiling surface. At this time, the side edge of the decorative plate is in contact with the bottom of the groove, and there is no gap between the decorative plate and the corner material. After the construction, since the decorative plate is made of synthetic resin, the linear expansion coefficient is large, and expansion in the width direction occurs due to changes in room temperature, and there is no room to absorb the expansion at the corners, so the decorative plate may warp or at worst. In that case, it was sometimes missed. On the other hand, when contracted, there was a problem that a gap was created between the decorative plate and the corner material, and moisture entered through the gap. In view of such a problem, the present invention provides a corner member of a synthetic resin decorative plate that does not contact the side edge of the decorative plate with the bottom of the groove during construction and absorbs the linear expansion of the decorative plate. The purpose is to do.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the corner member of the present invention has a base member having a female fitting portion formed at one end of a mounting piece to be mounted on a ceiling surface, and a male fitting portion at one end of a holding piece for holding a decorative plate. It consists of the formed cover material and is detachably fitted. Then, the first hollow elastic body is bulged at the bottom of the groove formed by the mounting piece of the base material and the sandwiching piece of the cover material, and the first hollow elastic body is further formed on the first hollow elastic body. There is provided a corner member for a decorative plate made of synthetic resin, characterized in that a second hollow elastic body having a thickness smaller than that of the elastic body is bulged and formed.

[0005]

[Action]

 According to the corner member, the first hollow elastic body bulges and forms on the bottom of the concave groove formed by the attachment piece of the base material and the sandwiching piece of the cover material, and bulges on the first hollow elastic body. When the synthetic resin decorative plate is inserted into the groove by the second hollow elastic body that is thinner than the first hollow elastic body to be formed, the side surface of the decorative plate comes into contact with the second hollow elastic body and the second hollow elastic body is formed. The elastic body is crushed, but the side edge of the decorative plate does not come into contact with the bottom of the concave groove, and if the decorative plate expands in the width direction due to the linear expansion, the 1 When the hollow elastic body is crushed, the expansion can be absorbed. On the contrary, when the room temperature falls and the decorative plate contracts, the crushed second hollow elastic body swells in response to the contraction and the decoration is constantly performed. Do not touch the board and create a gap between the decorative board and the corner material. It is way.

[0006]

【Example】

 An embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a sectional view of a corner member 1 of the present invention. The corner material 1 includes a base material 2 and a cover material 3. In the base member 2, a female fitting portion 5 for fitting and holding the decorative plate 12 is formed in an L-shaped cross section at one end of a mounting piece 4 for mounting on the ceiling surface of the building. A first hollow elastic body 6 made of a soft synthetic resin is formed to bulge on the side where the attachment piece 4 is formed on the side surface of 5, and is thinner than the first hollow elastic body on the first hollow elastic body 6. The second hollow elastic body 7 made of soft synthetic resin is bulged and formed. In the cover material 3, a male fitting portion 9 for fitting and holding the decorative plate 12 is formed at one end of the sandwiching piece 8 for sandwiching the decorative plate 12 in a substantially L-shaped cross section. An elastic protrusion 10 made of a soft synthetic resin is provided at the tip of the protrusion.

Then, the base material 2 and the cover material 3 are fitted to each other by the mounting piece 4 and the sandwiching piece 8 so as to form the concave groove 11 to form the corner material 1. At this time, the first hollow elastic body 6 and the second hollow elastic body 7 that bulge and form on the side surface of the female fitting portion 5 are formed on the bottom of the concave groove 11.

In constructing such a corner material 1 on a ceiling surface, first, a base material 2 is attached to a corner portion between the ceiling surface and the wall surface 15 by a nail or the like on a base material 14 such as a field edge material on the ceiling surface. Then, the cover material 3 is fitted to the base material 2 to form a corner material. The decorative plate 12 is inserted into the recessed groove 11 formed by such fitting, and the side end portion 13 of the decorative plate 12 is brought into contact with and fixed to the second hollow elastic body 7. At this time, the second hollow elastic body 7 is crushed, but the tip of the side end portion 13 of the decorative plate 12 does not contact the side surface of the female fitting portion 5 of the base material 2, in other words, the bottom portion of the groove 11. . The state of construction in this way is shown in FIG. Then, the side edges of the decorative plate 12 are continuously fitted and connected in the longitudinal direction and stretched over the ceiling or wall surface.

After the decorative plate 12 is stretched in this way, when the room temperature rises and expands due to the linear expansion in the width direction of each decorative plate 12, the first hollow elastic body 6 is crushed and the decorative plate 12 is crushed. Absorbs swelling (see Figure 3). On the contrary, when the temperature drops and the decorative plate 12 contracts, the second hollow elastic body 7 swells in accordance with the contraction and constantly abuts, so that no gap is created between the decorative plate 12 and the corner member 1. (See FIG. 4).

[0010]

[Effect of device]

 As described above, according to the corner material for a synthetic resin decorative plate of the present invention, when the synthetic resin decorative plate is stretched on the ceiling surface, the base material mounting piece and the cover material sandwiching piece are used. The decorative plate is inserted into the concave groove formed by and is brought into contact with and fixed to the second hollow elastic body that bulges and forms at the bottom of the concave groove. At this time, the second hollow elastic body is crushed, but the side end of the decorative plate does not come into contact with the bottom of the groove, in other words, the side surface of the female fitting portion of the base material, and the tip of the side end and the groove. Creates a gap between the bottoms of the. The expansion caused by the linear expansion in the width direction of the decorative plate due to the temperature change can be absorbed by the crushing of the first hollow elastic body, and the decorative plate can be prevented from bending or coming off, and vice versa. When the decorative plate contracts, the second hollow elastic body swells and is constantly in contact with the decorative plate, so that no gap is created between the decorative plate and the corner material, and moisture enters inside. Is being prevented.

[Brief description of drawings]

FIG. 1 is a sectional view of a corner member for a synthetic resin decorative plate according to the present invention.

FIG. 2 is a cross-sectional view showing a state immediately after construction of a corner member for a synthetic resin decorative plate of the present invention.

FIG. 3 is a cross-sectional view showing a state in which the decorative plate is inflated after the corner material for decorative plate made of synthetic resin of the present invention is applied.

FIG. 4 is a cross-sectional view showing a state where the decorative plate is contracted after the corner material for decorative plate made of synthetic resin of the present invention is applied.

FIG. 5 is a cross-sectional view of a conventional corner member for a synthetic resin decorative plate.

[Explanation of symbols]

 1 Corner Material 2 Base Material 3 Cover Material 4 Mounting Piece 5 Female Fitting Section 6 First Hollow Elastic Body 7 Second Hollow Elastic Body 8 Clamping Piece 9 Male Fitting Section 10 Elastic Projection Piece 11 Recessed Groove

Claims (1)

[Scope of utility model registration request] 1. A base material having a female fitting portion formed at one end of a mounting piece to be mounted on a ceiling surface, and a cover material having a male fitting portion formed at one end of a sandwiching piece for sandwiching a decorative plate. In a corner material for a decorative plate made of synthetic resin, a first hollow elastic body is bulged at the bottom of a groove formed by the mounting piece of the base material and the sandwiching piece of the cover material. 1. A corner material for a synthetic resin decorative plate, wherein a second hollow elastic body having a thickness smaller than that of the first hollow elastic body is bulged and formed on the first hollow elastic body.