JP2010248848A - Substrate corner material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a substrate corner material which is hardly uplifted and hardly forms a space when stuck to a substrate, makes a corner appear clearly when putty is applied, and conveniently carried to a site. <P>SOLUTION: The substrate corner material which is a long body arranged along an intersection line of a recessed corner or a projected corner where two cloth-pasted wall surfaces intersect with each other, and formed of a flexible synthetic resin material. The substrate corner material includes: a bent part composed of a projection projecting at the center along the longitudinal direction of one side of the long body and a groove along the center along the longitudinal direction at a position opposed to the projection at the other side of the long body; and a pair of flat portions formed at both sides of the center. The pair of the flat portions can be wound in a roll shape in a flat state to the bent portion, and when a force is not applied to the long body, the pair of the flat portions have restoration properties of maintaining a cross-sectional shape approximately orthogonal to the bent portion. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a base corner material that is used at an exit corner or an entrance corner in which cloth bases such as gypsum boards are joined at substantially right angles.

  In the interior construction of buildings, the mainstream is construction with wall coverings (cloth) such as wallpaper, fabric, and synthetic resin cloth. When applying this type of wall covering material (cross), in order to obtain a beautiful finish, it is necessary to finish the base surface to a smooth surface without unevenness. The surface of gypsum board or plywood that is usually used is flat, but a seam appears at the joint.

  Therefore, putty treatment is applied to the seam of plasterboard or plywood to make it smooth. In particular, in the protruding corner, which is the corner on the protruding side, and in the corner, which is the corner on the concave side, in many cases, it becomes a seam of gypsum board or plywood, and the ground finish is troublesome. For example, in order to finish the projected corners and corners of a building wall flatly, apply a thin synthetic resin L-shaped corner material to the corners and corners of the corners to make corners, and put each wall with a putty etc. Smoothing work is being done.

  As the material of the L-shaped corner material, conventionally, paper, metal, synthetic resin, or a composite made by combining these materials has been commercialized. For example, in order to clearly reveal the corner portion of the corner portion where the two wall surfaces of the structural material of the building intersect and form the corner portion by the corner material having the protruding portion, a flat plate portion having a pair of rigidity, A hinge part that bendably connects between the pair of flat plate parts such that the pair of flat plate parts form an angle formed by the two wall surfaces, and projects at least one side of the hinge part with respect to the thickness direction of the flat plate part There has been proposed a corner material provided integrally with a protruding portion (see, for example, Patent Document 1).

JP 2006-183409 A

  In the above-mentioned corner material proposal, the bending of the hinge part affects the flat plate part, and when the corner material is arranged in the corner part, the flat plate part is bent and the central part of the flat part of the corner material tends to be lifted due to repulsion, and the base and corner Since there is a gap between the materials, and when the putty is applied, the pate vera touches the floating part and the putty hardly remains on the surface of the part, and the putty does not touch the bent part and the putty remains more than necessary. There was a problem that the corners did not come out clean.

  The present invention is difficult to lift near the center of the flat part of the corner material when it is attached to the base, and it is difficult to create a gap between the base and the corner material. The purpose is to obtain a convenient corner material.

The base corner material according to the invention described in claim 1 is a base corner material which is a long body arranged along an intersection line of an entrance corner portion or an exit corner portion where two wall surfaces crossed are crossed. And
Made of flexible synthetic resin material,
From the protrusion part which protruded in the center part along the longitudinal direction of the one surface side of the said elongate body, and the groove part along the center part along the longitudinal direction in the opposing position of the protrusion part of the other surface side of the said elongate body And the bent part,
A pair of flat plate portions formed on both sides of the central portion,
The pair of flat plate portions can be wound in a roll shape in a state of being flat with respect to the bent portion, and the pair of flat plate portions are substantially orthogonal to each other with the bent portion interposed therebetween when no force is applied to the long body. It has a restoring property that maintains the cross-sectional shape.

  According to a second aspect of the present invention, there is provided a base corner material in which the pair of flat plate portions according to the first aspect are each curved in a concave shape with respect to the protruding portion.

  The corner material according to the invention described in claim 3 is characterized in that fine scratches or irregularities are formed on the front or back surface of the flat plate portion of the long body described in claim 1 or 2. Is.

  In the base corner material according to the invention described in claim 4, a large number of through holes penetrating the front and back surfaces are formed in the flat plate portion of the elongated body according to any one of claims 1 to 3. It is characterized by.

  The ground corner material according to the invention described in claim 5 has a large number of fine recesses formed on the front and back surfaces of the flat plate portion of the elongated body according to any one of claims 1 to 4. It is characterized by being.

  The base corner material according to the invention described in claim 6 has a putty-affinity film formed on the front surface or the back surface of the flat plate portion of the elongated body according to any one of claims 1 to 5. It is characterized by.

The base corner material which concerns on the invention described in Claim 7 is the adhesive layer provided in the surface or back surface side of the flat plate part of the elongate body in any one of Claims 1-6, and this adhesive layer. A release paper to be coated;
A continuous scale line is displayed on the surface of the release paper at a predetermined interval.

  The base corner material according to the invention described in claim 8 is characterized in that the long body according to any one of claims 1 to 7 is wound in a roll shape with a bent portion widened. It is what.

  The present invention is difficult to lift near the center of the flat part of the corner material when it is attached to the base, and it is difficult to create a gap between the base and the corner material. In addition, there is an effect that a convenient corner material can be obtained.

It is explanatory drawing which shows the whole structure and cross-sectional shape of one Example of the base corner material of this invention. It is explanatory drawing which shows the cross-sectional shape at the time of arranging the cross-sectional shape of a base corner material of FIG. 1 and a comparative example, and a corner. It is explanatory drawing explaining the surface structural example of the flat plate part of the foundation | substrate corner material of this invention.

In the present invention, it is a base corner material that is a long body arranged along the intersection of the entrance corner or the exit corner where the two wall surfaces to be crossed,
Made of flexible synthetic resin material,
From the protrusion part which protruded in the center part along the longitudinal direction of the one surface side of the said elongate body, and the groove part along the center part along the longitudinal direction in the opposing position of the protrusion part of the other surface side of the said elongate body And the bent part,
A pair of flat plate portions formed on both sides of the central portion,
The pair of flat plate portions can be wound in a roll shape in a state of being flat with respect to the bent portion, and the pair of flat plate portions are substantially orthogonal to each other with the bent portion interposed therebetween when no force is applied to the long body. It has resilience that maintains the cross-sectional shape. Thereby, the vicinity of the center of the flat plate portion of the corner material when sticking to the base is unlikely to be lifted, and a gap is hardly generated between the base and the corner material, so that the corners can be made clean when the putty is applied. It is also convenient for carrying to the site.

  That is, the base corner material of the present invention has a resilience that maintains a cross-sectional shape that is substantially orthogonal to each other with a pair of flat plate portions interposed between bent portions when no force is applied to the long body. For this reason, since it is substantially orthogonal in the state where no force is applied, it is not necessary to apply an extreme force to the flat plate portion and the bent portion when it is disposed in the corner portion. For this reason, the vicinity of the center of the flat plate portion does not bend, the center portion of the corner plate when attached to the base does not float up, and the putty can be put on without causing a gap between the base and the corner material. When applied, the corners can be made clean.

  The base corner material of the present invention is configured such that the bent portion and the pair of flat plate portions are made of the same flexible material, or the pair of flat plate portions can hold a flat plate shape and have a certain degree of stiffness. The part and its vicinity are made of a flexible material. Examples of the synthetic resin material constituting the bent portion and the pair of flat plate portions include synthetic resins such as polyvinyl chloride, PET resin, HIPS resin, ABS resin, elastomer resin rubber, or a composite thereof. As for flexibility, the pair of flat plate portions can be wound in a roll shape in a state of being flat with respect to the bent portion, and the pair of flat plate portions are bent portions when no force is applied to the long body. It suffices for the flexibility to have a restoring property that maintains the cross-sectional shapes substantially perpendicular to each other. For this purpose, a certain amount of thinness is required. Specifically, the flat plate portion has a thickness of 0.3 to 1.0 mm, preferably 0.4 to 0.6 mm, and the bent portion is thinner than the flat plate portion. Specifically, the thickness is 0.2 to 0.7 mm, preferably 0.25 to 0.5 mm.

  The base corner material of the present invention may be obtained by forming a pair of flat plate portions in an L shape with respect to the bent portion at the center while extruding a synthetic resin material with an extruder. In this case, the obtained long body can be wound in a roll shape with the pair of flat plate portions being flat with respect to the bent portion, and the pair of flat plate portions is in a state where no force is applied to the long body. However, it is only necessary to be configured so as to have a restoring property that maintains the cross-sectional shapes substantially orthogonal to each other with the bent portion interposed therebetween.

  The angle formed by the pair of flat plate portions of the base corner material of the present invention is substantially orthogonal, more specifically, 84 ° to 90 °, more preferably 86 ° to 90 °. If it exceeds 90 °, it will be easy to bend or lift when sticking the flat plate part to one side of the corner when it is placed in the corner of the exit corner. Similarly, if it is less than 84 °, it will be placed in the corner of the entrance corner. It is because it becomes easy to curve when sticking a flat plate part to one side of a corner.

  As a preferable base corner material of the present invention, the pair of flat plate portions are each curved in a concave shape with respect to the protruding portion. This makes it difficult to lift due to repulsion near the center of the flat plate part of the base corner material when pasted on the base, and when the putty is applied, the pate vera touches the lifted part and the putty hardly remains on the surface of that part, In addition, the putty is not touched in the vicinity of the bent portion, and the putty does not remain more than necessary.

  In addition, when the base corner material is pasted to the corner or the corner, the bent portion becomes higher than the flat plate surface, and when the putty is applied, almost no putty remains in the bent portion. In addition, the corners can be made clean by leaving moderate putty on both sides of the bend. At the same time, the flat portion of the base corner material can be covered with putty, and as a result, the corners can be made beautiful. It should be noted that the degree of curvature of the flat plate portion of the present invention is such that when the flat plate portion is disposed at the corner of the protruding corner, the central portion of the flat plate portion abuts against one surface of the corner and the entire flat plate portion is substantially flush. That's fine.

  The base corner material of the present invention is preferably devised in various ways to increase the adhesive force of the putty when it is placed in the corner and the putty is applied to the surface of the corner material. Specifically, it has fine scratches or irregularities formed on the front or back surface of the flat plate portion of the long body, or has many through holes formed through the front and back surfaces of the flat plate portion of the long body. Equipped with many fine dents provided on the front and back surfaces of the flat plate part of the long body, or with a putty-compatible film formed on the front or back surface of the flat plate part of the long body One or more can be combined.

  In addition, as for the fine scratches or irregularities, even if the irregularities parallel to the longitudinal direction are formed on the punching die itself at the time of extrusion molding, the surface of the elongated body is roughened after extrusion. Including fine scratches and grooves. As the putty-compatible film, a layer such as an acrylic resin, vinyl acetate resin, ethylene vinyl acetate copolymer resin, polyvinyl alcohol resin, or elastomer having affinity for both the material and the putty of the base corner material is used as the base corner. Form on the surface of the material.

  The base corner material of the present invention preferably further comprises an adhesive layer provided on the front or back side of the flat plate portion of the elongated body and a release paper covering the adhesive layer, and the release paper surface has a predetermined surface. A continuous scale line is displayed at intervals. As a result, the required length of the corner material can be measured without using a dimension measuring tool such as a convex. For example, if a thick line with a spacing of 20 cm, a medium thick line with a spacing of 5 cm, and a thin line with a spacing of 1 cm are combined, the approximate length is measured by reading the number of scales of the thick line of 20 cm, and finally 5 cm, 1 cm The number of scales can be read to complete the measurement. Further, since the release paper on which the scale line is displayed before the corner material is pasted to the corner of the exit or the entrance, the scale mark is not left on the ground after the construction.

  Furthermore, the base corner material of the present invention has an appearance in which a pair of flat plate portions are substantially orthogonal to each other with a bent portion in between when a force is not applied to the long body due to its resilience. When the winding is performed, the pair of flat plate portions can be wound in a roll shape in a state of being flat with respect to the bent portion. For this reason, as a preferable aspect of the present invention, the long body is made into a product in a state of being wound in a roll shape with the bent portion widened. Accordingly, when the necessary length is unwound from the end portion of the wound product at the time of use and cut, the base corner material is restored from a flat shape to a substantially orthogonal state, so that the work of bending in advance can be omitted.

  FIG. 1 is an explanatory view showing the overall configuration and cross-sectional shape of an embodiment of the base corner material of the present invention. As shown to a figure, the base corner material 10 of a present Example is wound from the other end part of a longitudinal direction, and is roll shape. In a state of being wound in a roll shape, as shown in FIG. B, the base corner member 10 is in a flat state with a pair of flat plate portions 14 and 15 opened at an angle of about 180 ° with the bent portion 11 at the center portion interposed therebetween. ing. In this flat state, the bent portion 11 has a protruding portion 12 formed on one surface side, and a groove portion 13 is formed on the back surface of the protruding portion 12. Further, the pair of flat plate portions 14 and 15 are curved in a concave shape with respect to the protruding portion 12.

  Further, as shown in FIG. C, one end portion of the base corner material 10 is pulled out and cut into a desired length to be used as a corner material. In the state where no force is applied, the pair of flat plate portions 14 and 15 have an appearance substantially orthogonal to the bent portion 11 due to the restoring property. A plurality of through holes 16 are formed in the pair of flat plate portions 14 and 15 so that the putty to be applied does not slide up.

  FIG. 2 is an explanatory diagram showing the cross-sectional shape of the base corner material and the comparative example of FIG. 1 and the cross-sectional configuration when arranged at the corner. FIG. 1A shows the cross-sectional shape of the base corner material of FIG. 1 and the cross-sectional configuration when arranged at the corner, and FIG. b shows the cross-sectional shape of the comparative example and the cross-sectional configuration when arranged at the corner.

  As shown in FIG. 2a, the base corner member 10 has a restoring property in which the pair of flat plate portions 14 and 15 maintain a cross-sectional shape substantially orthogonal to each other with the bent portions interposed therebetween when no force is applied. For this reason, since it is substantially orthogonal in the state where no force is applied, when placing the base corner material 10 on the base 20 of the protruding corner portion, an excessive force is applied to the flat plate portions 14 and 15 and the bent portion 11. There is no need to add. Furthermore, in the base corner material 10 of the present embodiment, the pair of flat plate portions 14 and 15 are curved in a concave shape with respect to the protruding portion 12. For this reason, the vicinity of the center of the flat plate portions 14 and 15 does not bend, and the vicinity of the center of the flat plate portions 14 and 15 of the corner material 10 when attached to the base 20 does not float up. There is no gap between them. In addition, when the putty is touched near the bent portion 11 and the putty 21 is applied, the putty 21 does not remain more than necessary, and the corners can be made clean.

  On the other hand, as shown in FIG. 2b, the pair of flat plate portions A4 and A5 has a restoring property that maintains a cross-sectional shape substantially orthogonal to the bent portion A1 when the force of the comparative corner material A is not applied. When the pair of flat plate portions A4 and A5 are curved in a convex shape with respect to the protruding portion A2, or when the force of the comparative corner material B is not applied, the pair of flat plate portions B4 and B5 are not substantially orthogonal to each other. In the case of a flat plate, when the comparative corner material A or B is arranged on the base 20 of the protruding corner portion, the center of the pair of flat plate portions A4, A5 or B4, B5 is bent and floats, and a gap and a lift are generated. For this reason, since it becomes easy for the putty to touch the center of the flat plate portions A4, A5 or B4, B5 that have been lifted, the putty of this portion becomes thin and the finished state becomes worse. Moreover, since the pate vera does not touch the bent part 11, a corner | angular part does not come out beautifully.

  In addition to the through holes 16, the base corner material 10 of the present invention preferably performs various contrivances for improving putty adhesion and workability when placed on corners and applying putty to the surface of the corner material. . FIG. 3 is an explanatory view for explaining a surface configuration example of the flat plate portion of the base corner material of the present invention.

  As a device for increasing the adhesive force of putty, as shown in FIG. 3 a, when extruding each of the front and back surfaces of the flat plate portions 14 and 15 in which a large number of through holes 16 are formed on both sides of the bent portion 11. A large number of ridges or ridges 31 are formed. These ridges or ridges 31 are less effective than other devices, but when used together with other devices, the putty is less likely to slide and can be held on the flat plate portion.

  Similarly, as shown in FIG. B, fine scratches or grooves 32 are formed vertically and horizontally on the front and back surfaces of the flat plate portions 14 and 15 in which a large number of through holes 16 are formed on both sides of the bent portion 11. These fine scratches or grooves 32 increase the adhesive force of putty.

  Similarly, as shown in FIG. C, fine scratches or grooves 33 are formed obliquely on the front and back surfaces of the flat plate portions 14 and 15 in which a large number of through holes 16 are formed on both sides of the bent portion 11. These fine scratches or grooves 33 increase the adhesive force of putty.

  Similarly, as shown in FIG. D, fine scratches 34 are formed on the front and back surfaces of the flat plate portions 14 and 15 in which a large number of through-holes 16 are formed on both sides of the bent portion 11, and the front and back surfaces of the flat plate portions 14 and 15 are communicated. A large number of fine depressions 35 are formed. The fine scratches 34 and the recesses 35 increase the putty adhesion.

  Similarly, as shown in FIG. E, a polyvinyl acrylic resin primer layer as a putty-affinity film 36 is formed on each of the front and back surfaces of the flat plate portions 14 and 15 in which a large number of through holes 16 are formed on both sides of the bent portion 11. ing. This coating 36 increases the adhesion of putty.

  Finally, as a device for improving workability, as shown in FIG. 3f, two surfaces of the corner portions of the flat plate portions 14 and 15 in which a large number of through holes 16 are formed on both sides of the bent portion 11 are provided. An adhesive layer 37 formed on the flat plate portion surface on the groove 13 side that abuts, and a release paper 38 formed so as to cover the adhesive layer 37 are provided. On the release paper 38, scales of fine lines 39 and medium-thick lines 40 with a spacing of 5 cm are printed at equal intervals of 1 cm in the longitudinal direction. Further, a thick line may be printed every 20 cm. As a result, the required length of the corner material can be measured without using a dimension measuring tool such as a convex.

  In this embodiment, the release paper 38 is disposed on each of the pair of flat plate portions 14 and 15 as shown in FIG. F, but the release paper 38 having a scale printed on only one of the flat plate portions 14 and 15 is provided. On the other hand, there is no practical problem even if a release paper that does not print the scale is provided. On the contrary, when a release paper having a scale printed on each of the flat plate portions is used, it is necessary to increase manufacturing strictness in order not to shift the scale positions of both.

  Since the corners of the interior of the room can be easily put out before the wall covering material is attached to the interior of the room, a quick finish and a beautiful finish can be achieved.

10 ... Corner corner material,
11 ... bent part,
12 ... protruding part,
13 ... groove,
14 ... flat plate part,
15 ... flat plate part,
16 ... through hole,
20 ... the groundwork,
21 ... Putty,
31 ... ridges or ridges,
32 ... fine scratches or grooves,
33 ... fine scratches or grooves,
34 ... fine scratches,
35 ...
36 ... film,
37 ... Adhesive layer,
38 ... release paper,
39 ... Fine wire,
40 ... Middle thick line,

Claims (8)

It is a base corner material that is a long body arranged along the intersection line of the entrance corner or the exit corner where two wall surfaces crossed are crossed,
Made of flexible synthetic resin material,
From the protrusion part which protruded in the center part along the longitudinal direction of the one surface side of the said elongate body, and the groove part along the center part along the longitudinal direction in the opposing position of the protrusion part of the other surface side of the said elongate body And the bent part,
A pair of flat plate portions formed on both sides of the central portion,
The pair of flat plate portions can be wound in a roll shape in a state of being flat with respect to the bent portion, and the pair of flat plate portions are substantially orthogonal to each other with the bent portion interposed therebetween when no force is applied to the long body. A base corner material characterized by having a restoring property that maintains a cross-sectional shape.   The base corner material according to claim 1, wherein the pair of flat plate portions are each curved in a concave shape with respect to the protruding portion.   The corner material according to claim 1 or 2, wherein fine scratches or irregularities are formed on the front surface or the back surface of the flat plate portion of the elongated body.   The base corner material according to any one of claims 1 to 3, wherein a plurality of through holes penetrating the front and back surfaces are formed in the flat plate portion of the elongated body.   The ground corner material according to any one of claims 1 to 4, wherein a number of fine recesses provided on the front and back surfaces are formed in the flat plate portion of the elongated body.   The base corner material according to any one of claims 1 to 5, wherein a film having affinity for putty material is formed on the front surface or the back surface of the flat plate portion of the elongated body. An adhesive layer provided on the front or back side of the flat plate portion of the elongated body, and a release paper covering the adhesive layer;
The ground corner material according to any one of claims 1 to 6, wherein scale lines that are continuous at predetermined intervals are displayed on the surface of the release paper.   The foundation corner material according to any one of claims 1 to 7, wherein the elongated body is wound in a roll shape with a bent portion widened.

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