JP6647606B1 - Corner material for building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an architectural corner material excellent in design aesthetics and having no problem in safety. SOLUTION: In an architectural corner material 1 in which left and right flanges 11 and 12 intersect at an intersection 13 and a surface of which is formed as a coating surface on which putty is applied, outside of the intersection 13 between the left and right flanges 11 and 12. Is larger than the inner surface intersection angle α inside the intersection 13 and the outer surface intersection angle β is 90 ° or more. The thickness t1 of the intersection 13 between the left and right flanges 11 and 12 is made larger than the thickness t2 of the other portions, and a step 14 is formed at the boundary between the intersection 13 and the flanges 11 and 12. The outer side may be formed as a circular arc surface passing through or near the top of the left and right steps 14, 14 and the intersection 13. [Selection] Figure 2

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corner material for a building, which is disposed on a wall surface as a base when an interior finishing material is constructed at a corner inside a building.

  As this kind of corner material for building, the thing described in patent document 1 is known. The corner material for construction described in this document has a crossing angle α on the inner surface side of the flange formed between the inner surfaces of the left and right flanges of 90 ° or less, preferably about 87 to 88 °, which is slightly more acute than 90 °. When the corner base material is applied to the protruding corner, the free end side is fitted without floating from the wall surface.

  In the building corner material described in this document, for example, as described in paragraph 0019, the thickness of the left and right flanges is formed so as to decrease toward the free end. Since the extension line is formed so as to gradually approach the wall surface of the protruding corner, the intersection angle β on the outer surface side of the flange becomes smaller (a sharp angle) than the intersection angle α on the inner surface. That is, in the corner material for building described in Document 1, as shown in FIG. 4, the intersection angle (internal intersection angle) α of the inner surface 113b and the outer surface 113a at the intersection 113 where the left and right flanges 112 and 111 intersect. The relationship with the angle (external crossing angle) β satisfies α> β.

Japanese Patent No. 6241954 (see paragraphs 0019 to 0021 in the specification)

  However, the architectural corner material described in this document has a problem in that the external crossing angle β is an acute angle, so that safety at the time of construction is a problem, and that the design is also inferior in aesthetics.

  The present invention has been made in order to solve such a problem, and an object of the present invention is to provide a corner material for a building having excellent design aesthetics and having no problem in safety.

In order to achieve the above object, the outer surface intersection angle β may be an obtuse angle of 90 ° or more. On the other hand, in the conventional corner material as described above, since the thickness of the left and right flanges is generally formed so as to decrease toward the free end, as shown in FIG. In order to achieve the above, the inner surface intersection angle α must be made larger than this, and there is a problem that the corner material is difficult to adhere to the wall surface or the corner. Therefore, the invention according to claim 1 provides a corner material for a building in which left and right flanges intersect at an intersection and a surface of which is formed as an application surface for applying putty, wherein the meat of the intersection at the left and right flanges is provided. The thickness is made larger than the thickness of the other parts, a step is formed at the boundary between the intersection and the flange, the outside of the intersection is formed as an arc surface, and the curvature of the arc surface is The outer surface intersection angle β, which is the radius of the arc passing through the upper end of the step and the top of the intersection in the flange and the intersection of the tangents of the arcs passing through the upper ends of the left and right steps, is 90 ° or more. In addition, an inner surface intersection angle α (<90 °), which is an intersection angle of an extension of an inner surface excluding the intersection of the left and right flanges, is provided .

In this manner, by adjusting the diameter of the arc, it is easy to set the outer crossing angle β to an appropriate angle of 90 ° or more while making the outer crossing angle β larger than the inner crossing angle α (<90 °) . The step portion may be a putty scraping portion as described in claim 2 . Specific values of the inner surface intersection angle α and the outer surface intersection angle β may be, as described in claim 3 , the outer surface intersection angle β = 90 ° or more and 96 ° or less, and in this case, the inner surface intersection angle α = 82 ° or more and 88 ° or less. Further, as described in claim 4 , the radius of the outer surface of the crossing portion can be about 4 mm to 10 mm.

  Since the present invention is configured as described above, the outer crossing angle β can be easily made larger than 90 ° or more than the inner crossing angle α, and the angle can be easily adjusted. Therefore, it is possible to obtain an architectural corner material excellent in design aesthetics and having no problem in safety.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic view of an architectural corner material (hereinafter, abbreviated as a corner material) according to an embodiment of the present invention. FIG. FIG. 2B is an enlarged front view of the corner member viewed from a direction I, and FIG. 2B is an enlarged view of a portion A in FIG.

As shown in FIGS. 1 and 2, the corner material 1 of the present invention has left and right flanges (right flange 11 and left flange 12) and an intersection 13 where the left and right flanges 11 and 12 intersect. . The flanges 11 and 12 are formed with a large number of through holes 11a (the left flange does not appear in the drawing) so that the putty applied to the surfaces is properly held on the corner material 1 and the wall surface. .
As shown in FIG. 2, the left and right flanges 11 and 12 are formed such that the thickness t <b> 2 decreases from the intersection 13 toward the free end, similarly to the corner member described in Patent Document 1. As a typical corner material 1, a material having a width L of the left and right flanges 11 and 12 of about 28 to 29 mm can be cited. The thickness t2 on the crossing portion 13 side is about 0.5 to 2 mm, and the thickness t2 on the free end is about 0.2 to 1.5 mm.

  The crossing portion 13 of the flanges 11 and 12 is formed thicker than the other portions, and the portion where the thickness between the base of the flanges 11 and 12 and the crossing portion 13 changes substantially perpendicularly from the base. A rising step 14 is formed. The step portion 14 functions as a putty cutting portion when applying putty on the surfaces of the flanges 11 and 12. The height of the step portion 14 may be about 0.4 to 0.5 mm. The outer surface of the intersection 13 is formed by an arc connecting three points of the upper ends of the left and right steps 14 and the top of the intersection 13. In this embodiment, the outer surface crossing angle β is equal to the crossing angle of the tangent of the arc passing through the upper ends of the left and right steps 14. The thickness t1 at the top of the intersection 13 is preferably larger than the maximum thickness t2 of the flanges 11 and 12 and 1 mm or more. The radius Rβ of the outer surface intersection angle β can be set to about 4 to 10 mm.

Further, in this embodiment, the flanges 11 and 12 are crossed such that the inner surface crossing angle α of the inner surface 13b of the crossing portion 13 is smaller than the outer surface crossing angle β of the outer surface 13a. The outer crossing angle β can be about 90 °, preferably about 90 ° to 96 ° , and the inner crossing angle α can be about 82 ° to 88 ° . The radius Rα of the arc of the inner surface 13b can be set to about 1.5 mm.

FIG. 3 is a view for explaining the operation of the corner material of the present invention, and is a front view showing a state where the corner materials are stacked.
When a plurality of corner materials 1 of the present invention are stacked, a gap is formed between the outer surface 13a and the inner surface 13b of the intersection 13 of the upper and lower corner materials 1 and between the left and right flanges 11 and 12, so that a plurality of stacked corner materials 1 are formed. In addition to making it easier to take out the materials 1, the materials are stably stacked by the arc-shaped crossing portions 13 having a certain width, and the possibility of causing a load displacement or the like is reduced.
Further, in the corner members 1 and 2 of the present invention, the relationship between the inner surface crossing angle α and the outer surface crossing angle β is set to α <β as described above. Is reduced, and the aesthetic appearance is also improved.

Although the preferred embodiment of the present invention has been described, the present invention is not limited to the above description.
For example, the thickness t1 of the top of the crossing portion 13, the thickness t2 of the left and right flanges 12, 12 and the width L of the left and right flanges 12, 12 described above with specific numerical values in the above description are examples, The present invention can be applied to corner materials having other dimensions. Further, the outer surface of the intersection 13 has been described as the arc-shaped surface passing through the upper ends of the left and right steps 14, but the outer surface intersection angle β can be larger than the inner surface intersection angle α, and at the top of the intersection 13 As long as the thickness t1 can be set to a certain value or more (1 mm or more in the above description), an arc surface passing through a portion closer to the top of the intersection 13 than to the upper ends of the left and right steps 14 may be used.

  INDUSTRIAL APPLICABILITY The present invention is widely applicable to architectural corner materials attached to corners of wall surfaces of buildings.

BRIEF DESCRIPTION OF THE DRAWINGS It is the schematic of the corner material for buildings (it abbreviates as a corner material hereafter) concerning one Embodiment of this invention, Comprising: It is the whole perspective view of the corner material which partially fractured | ruptured. FIG. 2A is an enlarged front view of the corner member of FIG. 1 viewed from the direction I, and FIG. 2B is an enlarged view of a portion A in FIG. It is a figure explaining the effect of the corner material of the present invention, and is a front view showing the state where corner materials were piled up. It is a figure explaining a conventional corner material, and is an enlarged front view of a crossing part.

1: Corner material 11, 12: Flange 11a: Through hole 13: Crossing portion 13a: Inner surface 13b of crossing portion: Outer surface 14 of crossing portion: Step portion α: Crossing angle of inner surface β: Crossing angle of outer surface

Claims (4)

In architectural corner materials where the left and right flanges intersect at the intersection and the surface is formed as an application surface for applying putty,
The thickness of the crossing part in the left and right flanges is made larger than the thickness of other parts,
Forming a step at the boundary between the intersection and the flange,
Forming the outside of the intersection as an arc surface,
The curvature of the arc surface is the radius of the arc passing through the upper end of the stepped portion and the top of the crossing portion in the left and right flanges, and the intersection angle of the tangent of the arc passing through the upper end of the left and right stepped portion. The outer surface intersection angle β is 90 ° or more, and is larger than the inner surface intersection angle α (<90 °) which is the intersection angle of the extension of the inner surface excluding the intersection of the left and right flanges .
Corner material for construction characterized by the following. The architectural corner material according to claim 1 , wherein the step portion is a portion for scraping putties on the left and right flanges. The architectural corner material according to claim 1 or 2 , wherein the outer surface crossing angle β is 90 ° to 96 °, and the inner surface crossing angle α is 82 ° to 88 °. The architectural corner material according to any one of claims 1 to 3 , wherein a radius of the outer surface is 4 mm to 10 mm when an outer surface and an inner surface of the intersection are formed as arc surfaces.

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