JP2008057248A - Corner material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a corner material capable of finishing a corner part in a roundish beautiful shape, by being installed in the corner part of a wall, when finishing a wall surface of a building. <P>SOLUTION: This corner material is formed by respectively integrally arranging a plate of a predetermined width on both right-left sides of a hinge part, by arranging the hinge part bendable along the center line in the vertical direction in a central part in the width direction. The corner material is provided by alternately forming a soft reinforcement and a hard reinforcement in a plurality of streaks in the hinge part. An adhesive layer is desirably arranged in a plate part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a corner material that is attached to a corner portion when finishing a wall surface or the like of a building to make the corner portion finish round and beautiful.

  The wall surface of the building is performed by a dry finishing method in which cloth, synthetic resin cloth, wallpaper, or the like is pasted, or a wet finishing method in which wall soil, diatomaceous earth, mortar, or the like is applied. In this case, the surface of the gypsum board, which is a wall material, has many irregularities, so when pasting wall coverings such as wallpaper, fabric, synthetic resin cloth, etc., make a flat surface with a putty etc. However, the corner portions such as the protruding corner portion and the entering corner portion have a sharp ridge line portion, so that it is difficult to finish with a putty or the like.

  In order to prefinish the protruding corner portion of the wall surface of the building flatly, a corner material described in Patent Document 1 has been proposed. This corner material is made of a hard synthetic resin flat plate having a thickness of 1 mm or less on both the left and right sides in the longitudinal direction of the hinge portion made of a soft synthetic resin having a thickness of 1 mm or less and a width of 2 mm or less. They are connected together and have an appropriate number of holes in the flat plate. On the other hand, a shape in which a hard flat plate is bent at a substantially right angle with a center line along the longitudinal direction without providing such a hinge portion has been put into practical use. This is manufactured by extruding a synthetic resin into a bent shape having an L-shaped cross section in advance, and then sticking an adhesive tape (double-sided tape) to the bent flat plate portions and perforating them. Furthermore, the present inventor has proposed the corner material described in Patent Document 2 and the like as an improvement on the problems in the corner material.

Japanese Utility Model Publication No. 62-40030 Japanese Patent Application No. 2004-346611

  By the way, if there are sharp corners (outside corners) inside a building such as a house, elderly people and infants may hit them and be injured, so the corners of the walls should be rounded to some extent. It is preferable for safety. Also, from the aesthetic point of view, it may be desired that the corner portion is rounded.

  However, rounding a corner portion that is originally formed at a right angle requires processing such as cutting of the corner portion of the base board, which is troublesome. Therefore, an object of the present invention is to make it possible to finish a sharp corner portion formed at a right angle into a rounded shape using a wall material.

  In order to solve the above problems, the present invention employs the following configuration. That is, the corner material according to the present invention is provided with a hinge portion that can be bent along the center line in the vertical direction at the center portion in the width direction, and a corner plate in which a predetermined width plate is integrally provided on each of the left and right sides of the hinge portion. The hinge part is characterized in that a plurality of soft and hard muscles are alternately formed on the hinge portion. The left and right plates are preferably provided with a plurality of holes leading to the front and back. Moreover, it is preferable to form an adhesive layer for fixing to the base board on the back surfaces of the left and right plates.

  The corner material according to the present invention is applied to the corner portion of the base board and fixed, and a wall material such as a cloth is applied thereon, and the hinge portion that is bent along the corner portion of the base board is hard. Since it has a structure in which a plurality of sets of soft streaks are alternately provided, a relatively gently curved bent portion is realized when bent. For this reason, when this bent part is applied to the corner part of the base board and fixed, and a wall material such as wallpaper or cloth is applied thereon, the corner part is rounded.

  Since the left and right plate parts of the bent part are fixed to the base board, it is convenient for construction to provide an adhesive layer on the back side of the plate part. Further, if a plurality of holes leading to the front and back are provided in the plate portion, putty, wall soil, etc. applied to the front and back at the time of construction are integrated with the plate portion interposed therebetween, so that they are firmly fixed.

  Hereinafter, embodiments of the present invention will be specifically described. As shown in FIG. 1, the corner member 1 includes left and right elongated plate portions 2, 2, and a portion sandwiched between the plate portions 2, 2 (center portion of the corner member). 2 and a hinge part (bending part) 3 provided integrally with the main body 2. Examples of the material of the corner material 1 include synthetic resin materials such as vinyl chloride, ABS resin, butadiene-styrene copolymer, polypropylene, and polyester.

  In the plate portion 2, a large number of circular holes 5,. This hole 5 is a circulation hole for putting putty and wall soil coated on the front and back at the time of construction with the flat plate portion sandwiched between them, and is preferably a circular hole having a diameter of about 3 to 5 mm. It may be a hole.

  The entire width of the corner material 1 is 40 to 70 mm, for example, about 60 mm, and the width of the plate portion 2 is several tens of mm (for example, the width of one flat plate portion divided by a fold is about 25 to 50 mm), The thickness is preferably about 0.5 to 2 mm. If the thickness is too large, the finished surface is raised as compared with other portions, which is not preferable. On the other hand, if it is too thin, the strength (so-called waist strength) will be insufficient and usability will deteriorate. As shown in FIG. 4, the outer edge portion 2 a of the plate portion 2 is formed in a cross-sectional wedge shape whose thickness gradually decreases toward the outside. For this reason, when a plate part is affixed on a base board, a big level | step difference does not arise between the outer edge part of the said plate part, and a base board, and a stripe etc. do not arise on the surface of the wall covering after finishing.

  As shown in FIG. 3, an adhesive layer 10 for fixing the corner material to the base board is provided on one surface of the plate portion 2. Specifically, as shown in FIG. 3, the adhesive layer 10 is formed by adhering a double-sided pressure-sensitive adhesive tape 11 to a plate portion. The surface of the double-sided pressure-sensitive adhesive tape 11 is covered with a release paper 12. In use, the release paper may be peeled off to expose the surface of the adhesive layer.

  The hinge part 3 is made of a synthetic resin such as a butadiene-styrene copolymer, for example, and a plurality of soft muscles 15 and hard muscles 17 are alternately formed along the center line. In the illustrated example, four soft muscles 15 and three hard muscles 17 are formed. Of the three hard muscles 17, the central hard muscle 17 (A) is more than the hard muscles 17 (B) on both sides. It is thin. The soft muscle 15 is a flexible soft muscle, and can be easily bent along the direction of the muscle. Further, the hard muscle 17 is a hard muscle having considerable rigidity, and it is difficult to bend the portion of this muscle.

  The hinge part 3 is for making the corner part to have a roundness of 3R or more, preferably about 4R when bent, and the entire width of the hinge part 3 is 10 to 15 mm. The soft muscle 15 and the hard muscle The width of the soft muscle 15 is larger than the width of the hard muscle 7 (about 1 to 2 times), and is several mm, for example, about 1 to 3 mm. The thicknesses of the soft muscle 15 and the soft muscle 17 are both 1 mm or less, and the thickness of the soft muscle 15 is thinner than the thickness of the hard muscle 17, for example, about half of the thickness of the hard muscle 17. Specifically, for example, when the thickness of the hard muscle 17 is 0.6 mm, the thickness of the hard strip 15 is preferably about 0.3 mm. The soft muscles 15 and the hard muscles 17 can be formed by using the same material and different in thickness, but it is preferable to form both using different materials.

  The corner material 1 is conveniently formed into a long belt shape and wound into a roll shape, and is cut out to an appropriate length and used at the site. For example, the corner material 1 is rounded at the corner of the building. First, the corner material 1 wound in a roll shape is cut into an appropriate length to cover the adhesive layer. The pattern paper (covered paper) 12 is peeled off to expose the adhesive layer 10, and the exposed adhesive layer is attached to the corner portion of the base board 20 toward the wall material.

  In this corner material 1, the hinge portion 3 which is a bent portion is formed by alternately forming a plurality of soft and hard thin muscles 15, 17. Since these are alternately arranged, as shown schematically in FIG. 6, the hinge portion 3, that is, the corner portion, is gently curved. For this reason, the corner portion is rounded. When this corner material 1 is attached to the corner portion of the base board 20 constituting the wall, it is flattened by applying putty or the like as necessary (in many cases, it is not necessary to apply the putty), as shown in FIG. A cloth, wallpaper, or the like is pasted thereon or wet wall finishing material 30 is applied. This makes it possible to finish a beautiful rounded corner.

  In the above description, the hinge part 3 is composed of the four soft muscles 15 and the three hard muscles, but the number of muscles is not limited to this, and is appropriate according to the use conditions and the like. Can be any number.

  As is clear from the above description, the corner material 1 according to the present invention can finish the sharp corner portion of the base board into a beautiful rounded shape by simple construction. It goes without saying that this corner material can be used for finishing other than wet, such as wallpaper and cloth.

It is a top view showing one embodiment of the present invention. It is an enlarged plan view of the hinge part. It is an expanded sectional view of a hinge part. It is an expanded sectional view of the outer edge part of a flat plate part. It is explanatory drawing of a construction method. It is sectional drawing which represents a bending state typically.

Explanation of symbols

1 Corner material 2 Plate part 3 Hinge part (folded part)
5 Hole 10 Adhesive layer 12 Release paper 15 Soft muscle 17 Hard muscle 20 Base board 30 Wall material

Claims (3)

It is a corner material in which a hinge part that can be bent along the center line in the longitudinal direction is provided at the center part in the width direction, and a plate having a predetermined width is integrally provided on each of the left and right sides of the hinge part. A corner material characterized in that a plurality of strips of soft and hard streaks are alternately formed. The corner material according to claim 1, wherein the left and right plates are provided with a plurality of holes leading to the front and back. The corner material according to claim 1 or 2, wherein an adhesive layer is formed on the back surfaces of the left and right plates.

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