JPH10212810A - Joint fancy construction of building board and joint facing member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joint fancy construction capable of decorating a joint between building boards sufficiently easily and excellently, and a joint facing member used therefor. SOLUTION: The inside of the central part in the direction of the width is moved backward from the insides of both side sections in the direction of the width, and at least both side sections the direction of the width uses a joint facing member capable of being deformed. The inside of the central part in the direction of the width in the joint facing member is made to adhere to the edge surfaces on neighboring sides of a pair of building boards through an adhesion device 30, and both side sections in the direction of the width in the joint facing member are pushed against the edge surfaces on neighboring sides of a pair of building boards and are deformed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint decorative structure of a building board arranged side by side with its side edges adjacent to each other and a joint decorative member used for the same.

[0002]

BACKGROUND OF THE INVENTION In the traditional style of building interiors or exteriors, plastering, wet finishes such as plaster, dolomite plaster, jujube or cement are applied to the surface of the substrate. However, plastering is a skilled craftsman and is relatively expensive. Also, wet finishes require a relatively long curing time after application,
The plastering work requires a relatively long construction period. Therefore, recently, instead of applying a wet finish, it has been proposed to attach an architectural board provided with a decorative layer on the surface to the surface of a base material. As an architectural board that can be used conveniently, there is a patent application No. 1788/1995 filed by the present applicant.
No. 41 (filing date: July 14, 1995, title of invention: architectural board). Such architectural boards are composed of a rectangular base layer and a decorative layer applied to the surface of the base layer. The base layer is conveniently formed from a breathable board such as a calcium silicate board or a gypsum board, and the decorative layer is conveniently formed from a solidified curable composition. When such a building board is used, it is not necessary to apply a wet finishing material to the surface by plastering because of the provision of the decorative layer, so that the execution cost can be reduced and the construction period can be shortened.

[0003]

However, when a building board is used, an undesired appearance is exhibited if the boundaries, ie, joints, of the building boards arranged side by side with their side edges adjacent to each other are exposed as they are. . Therefore, it is necessary to appropriately make up the joints. It may also be intended to apply plastering to the joint area only partially to make the joint, but in this case some of the above-mentioned problems arising from plastering remain. Therefore, the present inventors have developed a joint decorative member composed of a tape having an appropriate decorative layer on the surface as necessary, along a joint of a pair of building boards arranged in parallel and a pair of architectural boards. An attempt was made to stick over the adjacent side edge surface of the board. However, when using such a joint decorative member, if both surfaces of a pair of building boards arranged in parallel are aligned with sufficient precision, the joint can be applied sufficiently well. However, if both surfaces of a pair of architectural boards are not aligned precisely enough and there is some level difference between the two surfaces (for example, a level difference of about 0.1 to 1.0 mm), Due to the step, the joint decorative member is inclined or a streak is generated on the surface of the joint decorative member corresponding to the step,
It turned out that good joint makeup could not be realized.

[0004] The present invention has been made in view of the above-mentioned facts, and its main technical problem is that it can be provided easily and in parallel without requiring skilled craftsman work such as plastering work. Joint joint structure and joint joint member used therefor, which make it possible to coat joints of the building board sufficiently well even when there are some steps between the surfaces of the pair of building boards. It is to provide.

[0005]

The present inventors have a unique form in which the inner surface at the center in the width direction is recessed from the inner surfaces at both sides in the width direction, and at least both sides in the width direction are deformable. Using the joint decorative member, the inner surface of the width direction central portion of the joint decorative member is bonded to the adjacent side edge surfaces of the pair of building boards via bonding means, and a pair of the width direction both side portions of the joint decorative member is respectively provided. It has been found that the above-mentioned main technical problem can be achieved by pressing and deforming the surface of the adjacent side edge of the building board.

That is, in one aspect of the present invention, both the side edges are adjacent to each other along the joints of a pair of building boards arranged side by side and on both adjacent side edge surfaces of the pair of building boards. In the joint decorative structure provided with the joint decorative member extending over the straddle, the inner surface of the joint in the width direction is recessed from the inner surfaces of both side portions in the width direction. The inner surfaces of the width direction central portions are bonded to the adjacent side edge surfaces of the pair of building boards via bonding means, and the width direction both side portions of the joint decorative member are respectively formed of the pair of building boards. The joint makeup structure is characterized in that the joint makeup structure is deformed by being pressed against the surface of the adjacent side edge.

[0007] In another aspect of the present invention, an elongated extending joint decorative member for decoratively joining joints of a pair of building boards arranged side by side with side edges adjacent to each other is provided at a center portion in a width direction. The joint face decorative member is provided in which the inner surface is recessed from the inner surface on both sides in the width direction, and at least both sides in the width direction are deformable.

[0008] It is preferable that the both sides in the width direction of the joint decorative member are gradually reduced in thickness outward in the width direction. In a preferred embodiment of the joint decorative member, a double-sided adhesive tape is provided on an inner surface of the widthwise central portion, and a thickness of the double-sided adhesive tape is set to a retreat depth of the widthwise central portion with respect to both widthwise side edges. Less than.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a joint decorative structure of the present invention and a joint decorative member used therein will be described in further detail with reference to the accompanying drawings.

FIG. 1 and FIG. 2 show a part of the interior of a building provided with a preferred embodiment of the joint makeup structure of the present invention. A pair of architectural boards 4 are fixed on the base 2 of the building (FIG. 2). Such a pair of architectural boards 4 are arranged side by side with their respective side edges 6 adjacent, preferably close.

As clearly shown in FIG. 2, each of the pair of building boards 4 comprises a rectangular base layer 8 and a decorative layer 10 applied to the surface of the base layer 8. The base layer 8 in the illustrated embodiment is a commercially available gypsum board, a core 12 formed by mixing a small amount of inorganic fine aggregate or the like into hemihydrate gypsum, and both front and back surfaces and both sides of the core 12 And the cardboard 14 covering the surface (the core 12
Are exposed without being covered with cardboard). The decorative layer 10 is formed from a solidified curable composition. Such a decorative layer 10 can be conveniently formed by laminating a kneaded product of the curable composition and water on the surface of the base layer 6 in an appropriate manner, then curing and solidifying. The configuration of the building board 4 itself does not constitute a novel feature of the jointed decorative structure of the present invention, and any building board can be used, and the building board 4 that can be preferably used is also used. Regarding itself, the above-mentioned 1995 Patent Application No. 178
No. 841 and therefore a detailed description of the building board 4 itself is omitted here. The fixation of the building board 4 to the foundation 2 of the building can be accomplished in a known manner, such as by nailing or tacking.

As shown in FIG. 1, the lower edge surfaces of a pair of building boards 4 arranged in parallel are covered with a baseboard 16 and the upper edge surfaces are covered with a peripheral edge 18. The skirting board 16 and the peripheral edge 18 can be fixed to required parts by ordinary carpentry work.

In the joint decorative structure of the present invention, as clearly shown in FIGS. 1 and 2, the joint decorative member 20 is provided along the joint of the pair of building boards 4 and adjacent to the pair of building boards 4. The joints of the pair of architectural boards 4 are dressed by applying so as to extend over both the side edge surfaces.

FIG. 3 shows a preferred embodiment of the joint decorative member 20 of the present invention. This joint decorative member 20
Is composed of a main body 22, which is preferably made of a relatively soft synthetic resin. Suitable synthetic resin materials for forming the main body 22 include vinyl chloride resin,
Examples include polyethylene resin, polyester resin, polyether resin, urethane resin, ethylene propylene copolymer, silicone rubber, and chloroprene rubber.

Referring to FIG. 3, in the body 22 of the joint decorative member 20, the inner surface 24a of the center portion 24 in the width direction is retracted more than the inner surfaces 26a of both side portions 26 in the width direction. It is important that you are immersed. As will be further mentioned below, it is also important that the side edges 26 of the body 22 of the jointing member 20 be deformable, preferably elastically deformable, with a relatively small force. In order to satisfy such requirements for the side edges 26 of the main body 22, it is preferable to form the side edges 26 in such a manner that the thickness gradually decreases outward in the width direction. In FIG. 3 which is a cross-sectional view, the outer surface 28a of the main body 22 of the illustrated joint decorative member 20 is defined by an arc. Inner surface 2 of width direction central portion 24 of main body 22
4a is defined by a straight line extending chordally with respect to the arc defining the outer surface 28a. Both sides 26 of body 22
The inner surface 26a is defined by an inclined straight line extending in a direction away from the inner surface 24a in the thickness direction toward the outside in the width direction (that is, downward in FIG. 3). The surface of the main body 22 is defined by an arc.
Because the inner surfaces 26a of the side edges 26 of the main body 22 are defined by the inclined straight lines, the thickness of the side edges 26 of the main body 22 is gradually reduced outward in the width direction. Also, the outer surface 28a of the main body 22 is defined by an arc,
Since the inner surface 24a of the width direction central portion 24 is defined by the straight line, the thickness of the width direction central portion 24 is also gradually reduced from the width direction center toward the width direction outward.

In view of the design of the interior of the building, the width w of the body 22 of the joint decorative member 20 is 8 to 16 m.
m, especially 10 to 14 mm. Further, as will be further described later, even when there is a step of about 0.1 to 1.0 mm between both surfaces of the pair of building boards 4, it is possible to make the joint between the two boards sufficiently satisfactory. A widthwise center portion 24 with respect to both side edges of the main body 22.
The inner surface 24a has a receding depth d of 0.5 to 2.0 mm, preferably 0.6 to 1.5 mm.

As shown clearly in FIG. 3, in the joint decorative member 20 shown in the drawing, a double-sided adhesive tape 30 constituting an adhesive means is adhered to the inner surface 24a of the center portion 24 in the width direction of the main body 22. It is preferred that On the surface of the double-sided adhesive tape 30 (ie, the lower surface in FIG. 3),
A cover film 32 is attached to the double-sided adhesive tape 30 (in other words, it can be attached to the double-sided adhesive tape 30 but can be easily peeled off). Conveniently, the double-sided adhesive tape 30 and the cover film 32 extend over the entire length of the main body 22. Adhesive tape 30 with cover film 32
As a preferred example, a product sold by Nitto Denko Corporation under the trade name “double-sided adhesive tape No. 523” can be mentioned. As clearly shown in FIG. 3, the thickness t of the double-sided adhesive tape 30 is smaller than the recessed depth d of the inner surface 24 a of the width direction central portion 24 with respect to both side edges of the main body 22, and dt is 0.05. It is preferably about 1.0 to 1.0 mm.

Referring to FIGS. 1 and 2 together with FIG. 3, when the joints of the pair of building boards 4 are to be dressed,
A decorative member 20 having a length corresponding to the length between the baseboard 16 and the peripheral edge 18 is prepared. Next, the cover film 32 was peeled off to expose the surface of the double-sided adhesive tape 30, and FIG.
As shown in FIG. 1, the main body 22 of the joint decorative member 20 is adhered to the surfaces of the pair of building boards 4 via the double-sided adhesive tape 30. In this case, the main body 22 extends along the joint between the pair of building boards 4 in the length direction, and both the adjacent side edge surfaces of the pair of building boards 4 in the width direction. It is important to be positioned over the When the center portion 24 in the width direction of the main body 22 is pressed from the outer surface side and the double-sided adhesive tape 30 is pressed against the surface of the building board 4, the thickness t of the double-sided adhesive tape 30 becomes the width with respect to both side edges of the main body 22 as described above. Direction center 2
4 is smaller than the receding depth d of the inner surface 24a, dt
Is set to about 0.05 to 1.0 mm,
Both side edges 26 in the width direction of the main body 22 are a pair of building boards 4.
Is pressed against the adjacent side edge surface and deformed somewhat (compare FIGS. 2 and 3). Thus, the joint decorative member 20 is adhered to the surfaces of the pair of building boards 4 without generating a gap between both side edges of the main body 22 of the joint decorative member 20 and the surfaces of the pair of building boards 4,
The joints of the pair of architectural boards 4 are sufficiently well-decorated.

According to the experience of the present inventors, both surfaces of a pair of building boards 4 arranged in parallel are aligned with sufficient precision due to various factors such as the accuracy of execution of the foundation 2 of the building. 4, a step of, for example, about 0.1 to 1.0 mm may be generated between both surfaces of the pair of building boards 4 as shown in FIG. In the joint makeup structure of the present invention, when such a step is present, one side edge (left side edge in FIG. 4) 26 of the body 22 of the joint makeup member 20 as schematically shown in FIG. Is a building board 4
The other side edge (right edge in FIG. 4) 26 is slightly pressed by the surface of the building board 4 and slightly deformed.
Thus, the joint between the pair of architectural boards 4 can be obtained without the defect such as generation of a streak that can be visually observed on the surface of the body 22 of the joint decorative member 20 due to the step. Can be applied sufficiently well.

The joint decorative member 2 in the embodiment described above.
0, the inner surface 24 of the width direction central portion 24 of the main body 22
Although the double-sided adhesive tape 30 and the cover film 32 are provided at a, the double-sided adhesive tape 30 and the cover film 32 can be omitted if desired. In this case,
When the joint decorative member 20 is applied to the adjacent two side surfaces of the pair of building boards 4, for example, an adhesive is appropriately applied to the inner surface 24a of the center portion 24 in the width direction of the main body 22, and the main body 22 is brought into a pair with the adhesive. What is necessary is just to adhere | attach to the adjacent both sides surface of the building board 4.

[0021]

If the joint decorative structure of the present invention is realized by using the joint decorative member of the present invention, a pair of architectural boards can be easily formed without the need for skilled craftsman work such as plastering work. The joints between the pair of building boards are sufficiently satisfactorily formed even when there are some steps between the surfaces of the building boards.

[Brief description of the drawings]

FIG. 1 is a front view illustrating a part of an interior of a building in which a preferred embodiment of a joint makeup structure of the present invention is adopted.

FIG. 2 is a partial sectional view showing a joint makeup structure in the interior shown in FIG. 1;

FIG. 3 is a sectional view showing a preferred embodiment of a joint decorative member used in the joint decorative structure shown in FIGS. 1 and 2;

FIG. 4 is a partial cross-sectional view similar to FIG. 3, showing a preferred embodiment of the joint decorative structure of the present invention when there is some level difference between the surfaces of a pair of building boards.

[Explanation of symbols]

 2: Base of building 4: Architectural board 20: Joint decorative member 22: Body of joint decorative member 24: Central part in width direction of main part of joint decorative member 24a: Inner surface of central part in width direction of body of joint decorative member 26 : Both sides in the width direction of the body of the joint makeup member 26a: Inner surfaces of both sides in the width direction of the body of the joint makeup member 28a: Outer surface of the body of the joint makeup member 30: Double-sided adhesive tape 32: Cover film

Claims (5)

[Claims] 1. Joints extending along joints of a pair of building boards arranged side by side with their side edges adjacent to each other and straddling both adjacent side edge surfaces of the pair of building boards. In the joint decorative structure in which the decorative member is provided, the inner surface of the joint in the width direction is recessed from the inner surfaces of both sides in the width direction. The pair of architectural boards are adhered to the adjacent side edge surfaces via adhesive means, and the width direction both side portions of the joint decorative member are pressed against the adjacent side edge surfaces of the pair of architectural boards, respectively. Jointed makeup structure characterized by being deformed. 2. The joint decorative structure according to claim 1, wherein the both side portions in the width direction of the joint decorative member are gradually reduced in thickness outward in the width direction. 3. A long and narrow jointing decorative member for decorating joints of a pair of building boards arranged side by side with side edges adjacent to each other, wherein an inner surface of a widthwise central portion is formed on both sides in the widthwise direction. A joint decorative member which is retracted from an inner surface and at least both sides in the width direction are deformable. 4. The joint decorative member according to claim 4, wherein the thickness of the both sides in the width direction is gradually reduced outward in the width direction. 5. A double-sided adhesive tape is provided on an inner surface of the central portion in the width direction, and a thickness of the double-sided adhesive tape is smaller than a retreat depth of the central portion in the width direction with respect to both side edges in the width direction. Item 5. The joint decorative member according to item 3 or 4.