JP4076916B2 - Curved corner column and painting method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a protruding corner column used as an exterior material for a protruding corner portion of a building wall surface, and a coating method for a chamfered portion thereof.
[0002]
[Prior art]
In general, as an exterior material used for a protruding corner portion of a wall surface of a building, one shown in FIG. 13 is known. In this structure, a plurality of protruding corner pillars 1 a having a surface handle portion 4 are connected in the vertical direction with the joint portion 6 interposed therebetween to constitute a protruding corner wall surface. Such a protruding corner column 1a is usually manufactured through a process as shown in FIG. That is, first, the end portions of the two plate pieces 70A and 70B are obliquely cut (FIGS. 14A and 14B), and the cut surfaces 2 and 2 are joined to form a substantially L-shaped cross section. (FIG. 14 (c)). Next, the corner portion of the joint portion is cut and chamfered to form the chamfered portion 3 (FIG. 14D). Normally, the chamfered portion 3 is formed in a flat shape as shown in FIG. 15A, but may be formed in a curved shape as shown in FIG. 15B (see, for example, Patent Document 1).
[0003]
According to the method for manufacturing a protruding corner column described in Patent Document 1, first, two plate pieces are joined in the same manner as in the manufacturing process shown in FIG. 14, and then a grinding blade having a curved cutting edge. The corner portion is ground along the longitudinal direction by using, so that the curved chamfered portion 3 as shown in FIG. 15B is formed. Then, the surface of the protruding corner column is smoothed with sandpaper or the like, and is primed with a sealer. Next, the coating material is dropped along the longitudinal direction of the chamfered portion 3, and the entire surface of the protruding corner column is covered with a plastic film, whereby the coating material is rolled to form a decorative coating film on the entire surface of the protruding corner column. .
[0004]
As described above, in Patent Document 1, after the chamfered portion 3 is formed, the entire projected corner column is coated, and the plate piece that is the material of the projected corner column is not coated. On the other hand, it is also practiced to form a protruding corner column using a plate piece that has been painted in advance (see, for example, Patent Document 2).
[0005]
The basic procedure of the method of manufacturing the protruding corner described in Patent Document 2 is the same as that shown in FIG. However, unlike the above-mentioned Patent Document 1, since a plate piece that has been painted in advance is used, after the two plate pieces are joined and the corners are chamfered, only the chamfered portion 3 is painted. Applied. In Patent Document 2, the chamfered portion 3 is formed in a flat shape as shown in FIG. 15A, and after painting, as shown in FIG. 16, the chamfered portion 3 of the protruding corner column 1b is coated. A film 5b is formed. In painting the chamfered portion 3, a painting apparatus 50 as shown in FIG. 17 is used. In the coating apparatus 50, a coating roll 52 is rotatably attached above a coating bath 51 in which a coating 61 is stored. The lower part of the paint roll 52 is immersed in the paint bath 51, and the upper part of the paint roll 52 comes into contact with the chamfered portion 3 of the protruding corner column 1b.
[0006]
[Patent Document 1]
Japanese Patent No. 3295686 [Patent Document 2]
Japanese Patent No. 3323126
[Problems to be solved by the invention]
In the method of manufacturing a protruding corner column described in Patent Document 1, the entire protruding corner column is coated after the chamfered portion is formed. However, as described in Patent Document 1, in the method in which the paint is spread over the entire projected corner column using a plastic film, the surface of the projected corner column must be smooth so that the paint spreads over the entire surface. Therefore, it is not possible to use a plate having a surface with irregularities as a material for the protruding corner column, and it is not possible to manufacture a protruding corner column having an uneven surface pattern portion.
[0008]
Note that Patent Document 1 also describes that an unevenness is formed on a coating film by using an embossed plastic film. However, as described in the document, the thickness of the coating film formed by the method using such a plastic film is usually about 0.3 to 0.5 mm. Therefore, even if an embossed plastic film is used, the unevenness that can be formed on the coating film is limited to a very shallow one, and the surface that is usually required when it is called “an uneven surface pattern” It is far from the depth of the unevenness.
[0009]
On the other hand, if it is a manufacturing method as described in patent document 2, by using the board piece which has the surface pattern part with the unevenness | corrugation which was previously painted, the surface with the high designability in which the deep unevenness | corrugation was given A protruding corner column having a handle can be manufactured. However, since such a protruding corner column 1b is applied only to the chamfered portion 3 afterwards, the difference in texture between the chamfered portion 3 and the surface handle portion 4 after coating may be conspicuous. In particular, when the width of the chamfered portion 3 is wide, the difference in texture between the surface patterned portion 4 on which the uneven pattern is formed and the flat chamfered portion 3 becomes conspicuous. A continuous feeling on the appearance was not obtained.
[0010]
The present invention solves the above-mentioned problem, and has a highly patterned surface handle portion with irregularities, and has a continuity in appearance between the surface handle portion and the chamfered portion. The purpose is to provide. Another object of the present invention is to provide an improved corner column in which the chamfered portion is coated in multiple layers and in multiple colors so that the chamfered portion has a texture close to that of the surface handle portion. It is to be. Another object of the present invention is to provide a method for painting a chamfered portion, which can produce the above-mentioned protruding corner pillar by a simple process.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, a protruding corner column according to the present invention is a protruding corner column formed by joining the ends of two plate pieces having an uneven surface pattern portion that has been painted in advance. And a curved chamfered portion is formed by cutting the corner portion formed in the joint portion to be rounded, and the boundary line between the chamfered portion and the surface handle portion is an uneven shape of the surface handle portion. Further, it is characterized in that at least the chamfered portion is painted.
[0012]
Since the beveled column according to the present invention has a chamfered portion with a curved surface, and the boundary line between the chamfered portion and the surface handle portion is a curve along the uneven shape of the surface handle portion, The boundary with the chamfered portion is less noticeable, and the surface handle portion and the chamfered portion have a continuous appearance. In addition, since the chamfered portion is a curved surface, the chamfered portion is less likely to be lost than when the chamfered portion is a flat surface. Furthermore, by using a plate piece having an uneven surface pattern portion that has been painted in advance, a protruding corner column having a deep uneven surface pattern portion can be easily formed by forming a protruding corner column. It has the same advantage as the prior art that it can be manufactured.
[0013]
In a preferred embodiment, the coating film formed on the chamfered portion also covers the surface handle portion in the vicinity of the chamfered portion. Thereby, the continuity between the surface handle portion and the chamfered portion is further improved.
[0014]
In a preferred aspect, the coating film formed on the chamfered portion can cover unevenness such as burrs generated when the corner portion is cut at least in the vicinity of the left and right end portions of the chamfered portion. It has a thickness. When cutting corners, fine irregularities such as burrs are likely to occur in the vicinity of the edge in the left-right direction of the chamfered portion. However, in this embodiment, these irregularities such as burrs are concealed and a favorable appearance is obtained.
[0015]
In a preferred embodiment, the coating on the chamfered portion is performed in a plurality of times, whereby the coating film is composed of a plurality of coating film layers. In this aspect, the chamfered portion is painted in multiple layers and in multiple colors, has a texture close to the surface pattern portion, and is excellent in design. Thereby, even when the surface handle portion of the protruding corner column is a protruding corner column having a high design property, it is possible to reliably create a continuity between the surface handle portion and the chamfered portion.
[0016]
The present invention further discloses a method for painting the above-mentioned corner pillar. The method of painting a projected corner column according to the present invention is characterized in that the chamfered portion is painted while leaving irregularities such as burrs generated when the corner portion is cut. According to the coating method of the present invention, the coating is easily fixed by coating the surface having fine irregularities such as burrs.
[0017]
Here, the burr | flash produced in a chamfering part is demonstrated. FIG. 12 shows a cross section in the left-right direction in the vicinity of the chamfered portion after cutting the corner, FIG. 12 (a) shows a case where the chamfered portion 3 is a plane, and FIG. 12 (b) shows a surface. The case where the taking part 3 is made into a curved surface is shown. Usually, a coating layer 4b having a thickness of 80 to 100 microns is formed on the surface handle 4. A burr | flash mainly arises when this coating-film layer 4b is cut. When the chamfered portion 3 is flat as shown in FIG. 12A, the width h of the burr portion 80 generated in the coating layer 4b on one side is substantially the same as the thickness of the coating layer 4b, and is 80 to 100 microns. It becomes. On the other hand, when the chamfered portion 3 has a curved surface as shown in FIG. 12B, the coating layer 4b is cut over a wide range, so that the burr portion generated in the coating layer 4b on one side. The width H of 80 is as wide as 400 to 800 microns. According to the coating method according to the present invention, the fixing force of the paint to the chamfered portion 3 can be improved by utilizing the unevenness of the burr portion 80 over such a wide range.
[0018]
When the chamfered portion is coated by the coating method of the present invention, a gravure printing method or a flexographic printing method can be employed. The pigment contained in the ink adhering to the halftone dots on the roll used for gravure printing and flexographic printing is a small one having a width of 10 to 80 microns and a depth of 80 microns or less, and the ink is mixed with a solvent. Since the solvent easily evaporates, it is easily fixed on the coated surface. Therefore, it is possible to give a desired color and pattern to the chamfered portion.
[0019]
In a preferred embodiment of the coating method according to the present invention, the paint is attached to a roll made of an elastic material, and the roll is pressed to the chamfered portion of the corner corner and the surface handle portion in the vicinity thereof. The coating is performed while the roll is brought into contact with the chamfered portion and the surface handle portion in the vicinity thereof. In this aspect, not only the chamfered portion but also the surface handle portion in the vicinity thereof can be reliably coated by a simple process.
[0020]
Further, when the coating film to be formed on the chamfered portion is composed of a plurality of coating film layers, preferably, at least one upper coating layer is further formed on the elastic material on at least one lower coating layer. The coating is applied to the roll made of the above, the roll is pressed to the chamfered portion and the surface handle portion in the vicinity thereof, and coating is performed while the roll is brought into contact with the chamfered portion and the surface handle portion in the vicinity thereof. To form. Thereby, when forming an upper-layer coating-film layer, the edge part of a lower-layer coating-film layer can be covered reliably, and a multicolor coating can be given by a simple process. In addition, when the clear layer that protects the lower coating layer formed on the chamfered portion is formed as the uppermost layer, the edge of the lower coating layer can be reliably covered, so that the corner having excellent weather resistance can be obtained. It can be a pillar.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a protruding corner column according to an embodiment of the present invention. In the following description, the same reference numerals as those of the conventional protruding corner column 1a shown in FIG.
[0022]
In the protruding corner column 1 according to the present invention, the chamfered portion 3 is formed in a curved shape, and the boundary line 3 a between the surface handle portion 4 and the chamfered portion 3 is a curve along the uneven shape of the surface handle portion 4. It has become. That is, the boundary line 3a appears so as to draw a contour line so as to be substantially parallel to the contour line 4a of the convex portion of the surface pattern portion 4. Therefore, the boundary between the surface handle portion 4 and the chamfered portion 3 is less noticeable, and the surface handle portion 4 and the chamfered portion 3 have a continuous appearance.
[0023]
FIG. 2 shows the coating film formed on the chamfered portion 3 in an easy-to-understand manner. The thickness of the coating film is larger than the actual thickness, and FIG. 3 is a cross-sectional view taken along line III-III in FIG. FIG. As shown in FIG. 2, the coating film 5 formed on the chamfered portion 3 extends beyond the boundary line 3 a between the surface chamfered portion 4 and the chamfered portion 3 to the surface patterned portion 4 in the vicinity of the chamfered portion 3. It is formed across. Thereby, the continuity between the surface handle 4 and the chamfer 3 is further improved. And as shown in FIG. 3, the coating film 5 consists of a several coating film layer, ie, the sealer layer 11 as a lower layer coating layer, the 1st ink layer 12 as an upper layer coating layer, and 2nd It consists of an ink layer 13 and a clear layer 14. Thus, the chamfered portion 3 is multi-layered and multi-colored and has a texture close to the surface pattern portion 4.
[0024]
Next, the manufacturing process of this protruding corner column 1 will be described. The exit corner column 1 according to the present invention is manufactured through the manufacturing process shown in FIG. 14 in the same manner as the conventional exit corner column, using a plate piece having a textured surface pattern portion that has been painted in advance. . Then, in the step of cutting the corner shown in FIGS. 14C and 14D, a cutter as shown in FIG. 4 is used. FIG. 4A is a plan view of the cutter, and FIG. 4B is a cross-sectional view taken along the line IV-IV in FIG. As shown in FIG. 4A, the cutter 90 has a disk shape as a whole, and can rotate around its central axis 92. A plurality of blades 91 are provided along the circumference of the cutter 90, and the blade surfaces of the blades 91 are arranged so as to be perpendicular to the rotation direction 93 of the cutter 91.
[0025]
FIG. 5A is a plan view showing the blade 91 of the cutter 90 together with the protruding corner column 1, and FIG. 5B is a cross-sectional view taken along the line V-V in FIG. The tip of the blade 91 has a curved shape, and the chamfered portion 3 is formed in a curved shape by cutting the corner of the protruding corner column 1 along this curve.
[0026]
Since the chamfered portion 3 formed in this manner is an exposed portion that is not coated, painting is performed thereon. The coating is performed while leaving irregularities such as burrs generated when the corners of the protruding corner pillars 1 are cut. Thereby, the paint is easily fixed to the chamfered portion 3.
[0027]
In describing the coating process of the chamfered portion 3, first, some examples of a coating apparatus used for coating will be described. A coating apparatus 20 shown in FIG. 6 performs coating by a gravure printing method, and includes a paint roll 21, a metal roll 22, and a final roll 23 that are interlocked with each other. The lower part of the paint roll 21 is immersed in the paint bath 24 and supplies the paint 64 to the interlocking metal roll 22. The coating material 64 is composed of ink, a resin component, and a diluent, and the same material as that of a normal coating material used for an exterior material is used. A large number of fine concave points 25 are engraved on the surface of the metal roll 22, and these concave points 25 are arranged so as to form a pattern as a whole. Excess of the paint adhering to the metal roll 22 is scraped off by the blade 26, and the paint remains only at the recess 25. In FIG. 6, the indentation 25 is drawn large for the sake of clarity, but it is actually about several tens of μm.
[0028]
The metal roll 22 is interlocked with the final roll 23, and the paint remaining at the indentation 25 is transferred to the final roll 23, and the final roll 23 comes into contact with the surface to be coated and performs coating. The final roll 23 is made of an elastic material such as natural rubber, nitrile rubber, styrene butadiene rubber, chloroprene rubber, butyl rubber, ethylene propylene rubber, silicon rubber, fluorine rubber, and the hardness thereof is set to 10 to 15 °. It is preferable. However, other materials can be used, and for example, they may be formed from hard plastic or metal.
[0029]
FIG. 7 is a view of the coating apparatus 20 as seen from a direction perpendicular to the rotation axis of each roll. As shown in FIG. 7A, the final roll 23 has the same shape as a commonly used roll, and its roll radius R is constant over the entire width. At the time of painting, as shown in FIG. 7B, the final roll 23 is pressed against the chamfered portion, whereby the roll surface is deformed and contacts the chamfered portion and the surface handle portion in the vicinity thereof.
[0030]
In addition, as shown in FIG. 8, you may make the last roll into the shape along the shape of a chamfering part from the beginning. The final roll 23 'shown in FIG. 8 has a roll radius R that gradually increases from the center to the end of the roll. Thereby, the roll surface can come into reliable contact with the chamfered portion and the surface handle portion in the vicinity thereof.
[0031]
By using the coating apparatus 20 configured as described above, a coating layer having a desired color and pattern can be reliably formed on the entire surface of the chamfered portion 3. Further, by adjusting the hardness of the final roll 23, it is possible to allow the paint to adhere not only to the chamfered portion 3 but also to the concave portion of the surface handle portion 4 in the vicinity thereof.
[0032]
FIG. 9 is another example of a coating apparatus used for carrying out the coating method according to the present invention. The coating apparatus 30 shown here performs coating by a flexographic printing method, and includes a paint roll 31 and a convex roll 32 that are interlocked with each other. The lower part of the paint roll 31 is immersed in the paint bath 33 and supplies the paint 66 to the interlocking convex roll 32. At this time, excess paint adhering to the paint roll 31 is scraped off by the blade 34, and only an appropriate amount of paint is supplied to the convex roll 32. The paint 66 is composed of ink, a resin component, and a diluent, and the same paint as a normal paint used for an exterior material is used.
[0033]
The convex roll 32 is made of the same material as the final roll 23 of the coating apparatus 20 shown in FIG. The shape of the convex roll 32 may be the same as that of a roll that is normally used, such as the final roll 23 shown in FIG. 7A, or the shape of the final roll 23 ′ shown in FIG. Thus, it is good also as a shape along the shape of a chamfer part. When the shape is the same as that of the final roll 23 shown in FIG. 7A, as shown in FIG. 7B, the convex roll 32 is pressed against the chamfered portion during coating, and the roll surface is deformed. In contact with the chamfered portion and the surface handle portion in the vicinity thereof. Many convex points 35 are engraved on the surface of the convex roll 32, and these convex points 35 are arranged so as to form a pattern as a whole. In FIG. 9, the convex point 35 is drawn large for easy understanding, but the actual size is about several tens of μm.
[0034]
By using the coating apparatus 30 having such a configuration, a coating layer having a desired color and pattern can be reliably formed on the entire surface of the chamfered portion 3. Further, by adjusting the hardness of the convex roll 32, it is possible to make the paint adhere not only to the chamfered portion 3 but also to the concave portion of the surface handle portion 4 in the vicinity thereof.
[0035]
FIG. 10 shows still another example of the coating apparatus used for carrying out the coating method according to the present invention. The coating apparatuses 20 and 30 shown in FIG. 6 and FIG. 9 are designed to apply a pattern to the surface to be coated with a paint, but the coating apparatus 40 shown in FIG. The paint is applied evenly. The coating apparatus 40 includes a paint roll 41 as a sole roll, and a lower part thereof is immersed in a paint bath 42.
[0036]
The paint roll 41 is made of the same material as the final roll 23 of the coating apparatus 20, and the shape thereof is the same as that of a commonly used roll as shown in FIG. Any of the shapes along the shape of the chamfered portion may be used. Excess paint adhering to the paint roll 41 is scraped off by the blade 43, and only an appropriate amount of paint remains on the paint roll 41 and is applied to the chamfer 3.
[0037]
The process of coating the chamfered portion 3 of the protruding corner column 1 using the coating apparatus as described above will be described below. FIG. 11 shows a painting process of the chamfered portion 3 of the protruding corner column 1.
In order to form a coating film satisfactorily, the surface of the chamfered portion 3 before painting is exposed to the conventional chamfered portion as an undercoat. A similar sealer layer 11 is formed. The sealer is a penetration inhibitor liquid mainly composed of moisture-curing modified acrylic resin and has a viscosity of 20 to 30 seconds / NK · 2. This is applied at room temperature by an automatic coating apparatus similar to the conventional one as shown in FIG. 17 or brush coating, and then cured and cured. At this time, due to the viscosity and surface tension of the sealer, the end portion of the sealer layer 11 remains slightly protruding from the chamfered portion 3.
[0038]
Next, the first ink layer 12 is formed on the sealer layer 11 as shown in FIG. In this example, the first ink layer 12 has the same color as one of the colors included in the surface pattern portion 4 of the protruding corner column 1. The coating apparatus 20a is the same as the coating apparatus 20 shown in FIG. 6, and the first ink layer 12 is sealed by the final roll 23a being in close contact with the chamfered portion 3 with a width wider than the sealer layer 11. It is formed so as to cover the end of the layer 11. In this example, the concave points 25a on the surface of the metal roll 22a provided in the coating apparatus 20a are arranged so as to form the same pattern as the surface handle portion 4 of the protruding corner column 1 as a whole. The concave point 25a is formed in a portion occupying 70 to 90% of the surface area of the metal roll 22a, and the depth is 10 to 80 μm, and the average is 40 μm. The chamfered portion 3 is patterned by transferring the pattern of the concave points 25a to the final roll 23a and applying the coating to the chamfered portion 3. Thus, the first ink layer 12 is formed and dried and cured.
[0039]
Next, the second ink layer 13 is formed on the first ink layer 12 as shown in FIG. In this example, the second ink layer 13 has the same color as one of the colors included in the surface pattern portion 4 of the protruding corner column 1 and a different color from the first ink layer 12. The coating device 20b may be the same as the coating device 20a. When the final roll 23b is in close contact with the chamfered portion 3 with a wider width than the first ink layer 12, the second ink layer 13 is It is formed so as to cover the end of the first ink layer 12. The concave points 25b arranged on the surface of the metal roll 22b of the coating apparatus 20b are also arranged so as to form the same pattern as the surface handle portion 4 of the protruding corner column 1 as a whole. However, the number of the concave points 25b is smaller than that of the coating apparatus 20a shown in FIG. 11A, and is formed in a portion that occupies 30 to 60% of the surface area of the metal roll 22b. The pattern of the concave point 25b is transferred to the final roll 23b and the chamfered portion 3 is coated, so that the chamfered portion 3 gives a pattern with high design.
[0040]
In the chamfered portion 3 thus coated, the lower ink layer 12 can be seen from the gap between the patterns of the upper ink layer 13, and the portion where the upper and lower ink layers 12, 13 overlap is shown in FIG. The inks overlap and have a dark color. As a result, a pattern similar to the surface handle portion 4 is also formed on the chamfered portion 3 and the surface handle portion in the vicinity thereof, and a continuous feeling between the surface handle portion 4 and the chamfered portion 3 is born, resulting in a high design appearance. Become a corner pillar.
[0041]
Finally, as shown in FIG. 11C, a clear layer 14 is formed so as to cover the first and second ink layers 12 and 13. The clear layer 14 is for protecting the lower coating layer 11, 12, 13 and it is necessary to cover the lower coating layer 11, 12, 13 all over. Therefore, in this process, a coating apparatus 40a similar to the coating apparatus 40 shown in FIG. 10 is preferably used. For example, a clear coating having a viscosity of 20 to 30 seconds / NK · 2 is applied in an amount of 100 to 150 g / m ² . The clear coating used here contains beads. These beads are 40 to 200 μm in average and 85 μm in average, and 5 to 10% is added in the same manner as the surface handle 4 of the protruding corner column 1. If the clear layer 14 is dried, the coating of the chamfered portion 3 is completed.
[0042]
As shown in FIG. 3, the chamfered portion 3 of the projected corner column 1 thus coated covers the end portion of the lower ink layer 11 and a part of the surface handle portion. Since the upper ink layers 12 and 13 are formed so as to cover, the appearance is good. By combining these ink layers 12 and 13, the chamfered portion 3 has the same shape as the surface handle portion 4 of the protruding corner column 1. The handle is formed. And these ink layers 12 and 13 have sufficient thickness so that unevenness, such as a burr of a chamfered part generated when cutting a corner part, does not appear on the surface of the coating layer, As described above, the ink layers 12 and 13 cover up to the end of the surface handle portion 4 adjacent to the chamfered portion 3, and the burr is completely covered. Further, since the uppermost clear layer 14 reliably covers the lower ink layers 12 and 13 to the end, the weather resistance is excellent.
[0043]
【The invention's effect】
As described in detail above, the corners of the present invention have a curved surface in which the chamfered portion is formed in a curved shape, and the boundary line between the chamfered portion and the surface handle portion follows the uneven shape of the surface handle portion. Therefore, the boundary between the surface handle portion and the chamfered portion is not conspicuous, and a continuous appearance on the appearance of the surface handle portion and the chamfered portion is obtained. Moreover, in the suitable aspect of the protruding corner pillar by this invention, the chamfering part is multi-layered and multi-colored, has the texture close | similar to a surface pattern part, and is excellent in design property. Furthermore, according to the coating method of the present invention, the chamfered portion and the surface handle portion in the vicinity thereof can be coated at the same time, and a corner with excellent design and weather resistance can be manufactured by a simple process. .
[Brief description of the drawings]
FIG. 1 is a perspective view of a protruding corner column according to an embodiment of the present invention.
FIG. 2 is a view showing a coating layer formed on a protruding corner column shown in FIG. 1;
3 is a cross-sectional view taken along line III-III in FIG.
4 is a view showing a cutter used for manufacturing the protruding corner column shown in FIG. 1; FIG.
FIG. 5 is an enlarged view showing a part of the cutter shown in FIG. 4;
FIG. 6 is a view showing an example of an apparatus used in the coating method of the present invention.
7 is a view of the coating apparatus shown in FIG. 6 as seen from another direction.
FIG. 8 is a view showing another form of the final roll.
FIG. 9 is a view showing another example of an apparatus used in the coating method of the present invention.
FIG. 10 is a view showing still another example of an apparatus used in the coating method of the present invention.
FIG. 11 is a view showing a painting process of the protruding corner column shown in FIG. 1;
FIG. 12 is a diagram showing burrs generated in the chamfered portion of the protruding corner column.
FIG. 13 is a perspective view showing a construction state of a protruding corner column according to the prior art.
FIG. 14 is a view showing a manufacturing process of a protruding corner column according to a conventional technique.
FIG. 15 is a perspective view showing a shape of a chamfered portion of a protruding corner column according to a conventional technique.
FIG. 16 is a perspective view showing a chamfered portion after painting of a protruding corner column according to the prior art.
FIG. 17 is a view showing a coating apparatus used for painting the protruding corner column shown in FIG. 16;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Out corner pillar, 3 ... Chamfer part, 3a ... Boundary line, 4 ... Surface pattern part, 4a ... Contour line of convex part of surface pattern part

Claims (3)

It is a protruding corner column formed by joining the ends of two plate pieces having an uneven surface pattern portion that has been painted in advance,
A chamfered portion with a curved surface is formed by cutting so that the corners that can be formed in the joint portion are rounded,
The boundary line between the chamfered portion and the surface handle portion is a curve along the uneven shape of the surface handle portion,
The chamfered portion and the surface handle portion in the vicinity of the chamfered portion are coated in a plurality of times, and the coating layer formed by the coating is at least in the vicinity of the left and right end portions of the chamfered portion. in, external corner posts, characterized in Rukoto to have a thickness which can cover the irregularities caused by burrs produced when cutting the corner. It is a protruding corner column formed by joining the ends of two plate pieces having an uneven surface pattern portion that has been painted in advance,
A chamfered portion with a curved surface is formed by cutting so that the corners that can be formed in the joint portion are rounded,
The boundary line between the chamfered portion and the surface design portion is a coating method of the chamfered portion of the external corner posts that have a curve along the uneven shape of the surface design portion,
The chamfered portion and the surface handle near the chamfered portion are coated in multiple times,
The coating layer formed by coating is near the edge of the lateral direction of at least the chamfered portion, while leaving the unevenness due to burr generated during cutting the corner, covers irregularities caused by the burrs To have a thickness that can
A paint is adhered to a roll made of an elastic material, and the roll is pressed to the chamfered portion of the protruding corner column and the surface handle portion in the vicinity thereof, and the roll is pressed to the chamfered portion and the surface handle in the vicinity thereof. A method for painting a chamfered portion of a corner of a corner, which is characterized in that the painting is performed while contacting the portion. It is a protruding corner column formed by joining the ends of two plate pieces having an uneven surface pattern portion that has been painted in advance,
A chamfered portion with a curved surface is formed by cutting so that the corners that can be formed in the joint portion are rounded,
The boundary line between the chamfered portion and the surface handle portion is a coating method of a chamfered portion of a corner that is a curve along the uneven shape of the surface handle portion ,
The chamfered portion and the surface handle near the chamfered portion are coated in multiple times,
The coating layer formed by coating is near the edge of the lateral direction of at least the chamfered portion, while leaving the unevenness due to burr generated during cutting the corner, covers irregularities caused by the burrs To have a thickness that can
At least one lower coating layer is formed on the chamfered portion, and at least one upper coating layer is further formed thereon, and a paint is attached to a roll made of an elastic material so that the chamfered portion and the surface pattern in the vicinity thereof are adhered. A method for coating a chamfered portion of a protruding corner column, characterized in that the roll is pressed to a portion, and coating is performed while the roll is brought into contact with the chamfered portion and the surface handle portion in the vicinity thereof. .

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