JPH05285448A - Wheel cover for vehicle and production thereof - Google Patents

Abstract

PURPOSE:To develop a formed pattern as a uniform pattern as a whole by a method wherein the direction of the magnetic particles in a film is set to a direction parallel to the surface of the film at the almost central part of a contour but set to a direction crossing the surface of the film at both side parts of the contour and the contour of a flat surface is formed so as to be visually confirmed in a state protruding or retreating as compared with other part. CONSTITUTION:In a wheel cover for a vehicle, a pattern having a contour of a predetermined shape is formed on the surface of a wheel cover main body 101 almost formed into a disc shape using a transparent or translucent film mixed with a large number of fine flaky magnetic particles. The direction of the magnetic particles 17 in the film is set to a direction substantially parallel to the surface of the film 15 at the almost central part of the contour but set to a direction substantially crossing the surface of the film 15 at both side parts of the contour and the contour of the flat part is formed so as to be visually confirmed in a state protruding or retreating as compared with other part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheel cover for a vehicle and a manufacturing method thereof, and more particularly to a wheel cover having a pattern on its surface and a manufacturing method thereof.

[0002]

2. Description of the Related Art Conventionally, a pattern attached to a vehicle wheel cover is drawn by mask painting or the like after the wheel cover is molded, or the pattern portion of the wheel cover main body is made to have an uneven shape in order to give a three-dimensional pattern. It is usually performed by injection molding or the like. The former one in which a pattern is drawn has a poor three-dimensional effect, and it is difficult to create an excellent three-dimensional pattern for the wheel cover. In the latter case where the shape of the wheel cover main body is made uneven by injection molding etc., of course, although it looks three-dimensional, dirt, such as mud, tends to be attached to the uneven parts, especially the recesses, and the adhered dirt is removed by washing with water etc. It wasn't easy either. further,
When the wheel cover main body is formed into a concavo-convex shape by injection molding of synthetic resin or the like, flow marks and weld lines are formed on the surface of the wheel cover main body by allowing the resin to pass through the portion of the injection molding die corresponding to the concavo-convex portion. It is apt to occur, the mechanical strength is lowered at the portion where the weld line is generated, and the appearance is impaired at the flow mark portion.

[0003]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned drawbacks in forming an uneven shape by injection molding, a problem of removing stains, and a problem of lowering mechanical strength.

[0004]

In order to solve the above-mentioned problems, a vehicle wheel cover according to the present invention is provided with a large number of fine flake-shaped magnetic particles on a flat portion of the surface of the body of the wheel cover formed into a substantially disc shape. A transparent or semi-transparent coating film in which the body is mixed forms a pattern having a contour of a predetermined shape on the flat portion of the surface of the wheel cover body, and the direction of the magnetic substance in the coating film is in the central portion of the contour. It seems that the contour on the flat surface is substantially parallel to the above-mentioned coating surface and is oriented in a direction substantially intersecting the coating surface on both sides of the contour, and the contour on the flat surface is projected or receded as compared with other portions. It was made visible to me.

The method for manufacturing a vehicle wheel cover according to the present invention is a transparent or semi-transparent liquid in which a large number of fine flake-shaped magnetic substances are mixed on the surface of a vehicle wheel cover main body formed in a substantially disc shape. When the magnetic material in the paint is movable before and after the step of applying the paint, positions on the predetermined radius from the center of the wheel cover body and at equal intervals in the circumferential direction. Has a portion facing in a direction substantially parallel to the coating film surface, and this portion forms a magnetic field that generates magnetic force lines that delineate a predetermined shape on the coating film surface, and determines the position and / or angle of the magnetic substance. The method includes the steps of moving along the direction of the lines of magnetic force, and the step of solidifying the coating film until the position and / or angle of the magnetic material in the applied coating film does not change.

[0006]

[Function] The uneven pattern that appears on the wheel cover is
A large number of fine flake-like magnetic substances are mixed in a transparent or semi-transparent coating film and formed by mutual changes in the directions of the magnetic substances, and the pattern that appears gives a three-dimensional effect. The surface itself of the cover body is not uneven. Further, even when injection-molded, the wheel cover has less deterioration in mechanical strength and appearance. Further, the magnetic fields for forming the pattern at a plurality of locations are arranged so that the mutual interference of the magnetic fields is uniform over the entire wheel cover. It is not evenly disturbed.

[0007]

EXAMPLES FIG. 1 is a diagram for explaining the principle of a patterned coating film using a magnetic field.

In FIG. 1, reference numeral 11 is an article to be coated which is made of a non-magnetic material such as plastic. For example, the magnet 13 such as a plate-shaped permanent magnet is processed according to the pattern to be exposed, and is arranged on the back side of the article to be coated to form a predetermined magnetic field.
The dotted lines shown in the figure indicate the directions of the magnetic lines of force formed. The magnet has an N pole on the upper side and an S pole on the lower side on the paper surface. The north pole and the south pole may be opposite. The magnetic lines of force within the shape of the magnet 13 are oriented substantially at right angles to the coating surface and are located slightly outward from the end of the magnet (area B in the figure).
Then, the direction of the magnetic force lines changes rapidly and becomes parallel to the coating film surface (the tangential direction of the magnetic force lines is parallel to the coating film surface), and the intersecting angle of the magnetic force lines applied to both sides of the parallel portion is approximately 90 °. Further, in a portion sufficiently distant from the magnet (area D in the figure), the magnetic force lines are oriented substantially at right angles to the coating surface. At the point of magnetic charge m, magnetic permeability μ, and distance r, the magnetic field strength H is H = m
It is represented by / 4πμ · R / r ³ . In the formula, capital letters indicate vectors. H decreases in inverse proportion to the square of the distance. Therefore, in the area D, the strength of the magnetic field is significantly smaller than that in the areas A and B.

Where such a magnetic field is formed, a fine flaky magnetic material made of iron, nickel or the like or an alloy thereof is used as a transparent or semi-transparent liquid coating using a volatile solvent. It is mixed evenly in the inside and sprayed by atomizing it.

The magnetic substance sprayed in this magnetic field is shown in FIG.
As shown in FIG. 5, the magnetic field is arranged at an angle (hereinafter referred to as an upright angle) with respect to the coating surface along the line of magnetic force, and the vertical angle is fixed while being held by the paint sprayed together with the magnetic material. At this time, the density of the sprayed magnetic material is slightly increased at the place where the magnetic flux density is strong.

As shown in FIG. 1, the vertical angle arrangement is A
In the area, more magnetic material than in other areas is almost perpendicular to the coating surface, and in area B, which is the outline of the pattern, more magnetic material is in parallel at the center than in other areas. , On both sides of it, more magnetic material is skewed than in other areas, intersecting at an angle of about 90 °. Although the magnetic substance in the C region has less regularity than that in the B region, the magnetic substance is fixed along the lines of magnetic force almost obliquely with respect to the coating film surface, but in the D region, the magnetic force is weak and is not easily affected by the magnetic field. In the right direction. That is, in the region B, the magnetic substance is substantially parallel to the coating film surface, and in the regions A and C, it is oriented substantially in the direction intersecting the coating film surface.

FIGS. 2A to 2D are diagrams showing that the intensity and direction of reflected light differ depending on the vertical posture of the magnetic body. 2 (A) to 2 (D), the magnetic material is spray-coated on the article to be coated three times (one reciprocation and a half).

In the following description, the surface of the article to be coated is gray and sprayed with a transparent liquid paint mixed with Ni (nickel) flake fine powder (the surface is usually silver white) as a magnetic substance. And a coating film is formed.

FIG. 2A shows a state in which the magnetic material is perpendicular to the coating film. Most of the light applied from the top surface (when the article to be coated is viewed from the front) is transmitted or absorbed, and little light is reflected, so that the light appears to be blacker than the gray color and recedes from the other parts. FIG. 2 (B) shows a state in which the magnetic material is parallel to the coating surface. Since most of the incident light from the upper surface is reflected, it looks whiter than gray color and looks more floating than other parts. Fig. 2 (C) shows the case where the postures are randomly arranged, and the incident light from the upper surface is scattered and appears gray color. .. FIG. 2 (D) shows a case where the magnetic material is obliquely arranged, and when viewed from the direction of the arrow L, it appears whiter than the gray color and appears to rise, but when viewed from the direction of the arrow R, it is blacker than the gray color. It looks like it recedes more than other parts.

In the above description, it is presumed that what appears to be white is because the magnetic material is silver-white and reflects light. If the magnetic material is coated beforehand with a gold-colored substance, etc., that part will appear golden. It should be noted that when the surface of the magnetic body is a dark color such as black, it is presumed that the above description is reversed.

3 to 6 show a first embodiment of the present invention.

In FIG. 3, the wheel cover main body 101 for a vehicle is injection-molded from a plastic material which is a non-magnetic material into a substantially disc shape, and a cross section taken along the line AA is shown in FIG. A plurality of mounting portions 103, 103, ... And a plurality of ventilation holes 105, 105, ... For mounting on a road wheel of a vehicle are provided on the back surface of the main body 101. Figure 4
1, the wheel cover body 101 is formed so as to form a part of the outer surface of a sphere having a predetermined radius.
The outer surface is flat except for the edges of 05, 105, ....

Here, the term "flat" is not limited to the outer surface of a sphere having an infinite radius, but in reality, a curved surface having a radius of 100 mm or more may be continuous.

That is, a flat surface is formed except for a portion such as an edge portion of the ventilation holes 105, 105, ...

In this embodiment, the pattern 1 having the contours of four hexagonal nuts on the surface of the wheel cover body 101.
07, 107, ... are revealed. This nut pattern 1
The outline of 07 is a regular hexagon on the outside and a circle on the inside. The nut pattern appears at a constant distance in the radial direction from the wheel cover center P and at equal intervals in the circumferential direction. That is, even if the magnetic fields interfere with each other in the process of forming the nut patterns 107, 107, and the direction of the lines of magnetic force is disturbed, that is, the contour of the pattern 107 is partially disturbed, the disturbance is observed as the entire wheel cover. Sometimes it appears in a balanced position. The nut pattern 10
7 will be described with reference to FIGS. 5 (A), 5 (B) and FIGS. 6 (A), 6 (B), 6 (C). FIGS. 5 (A) and 5 (B) show a case where a magnetic field is formed on the flat outer surface of the wheel cover body 101 by a plate-shaped nut-shaped magnet having a regular hexagonal outer periphery and a round hole in the center. The appearance pattern is enlarged and shown. The nut-shaped magnet 31 shown by the dotted lines 31a and 31b in FIG.
As shown in (A), when it is brought into close contact with the back side of the wheel cover body 101, the magnetic force lines appear as the dotted lines in the figure. FIG. 6B shows a typical orientation of the magnetic substance in each portion. In FIG. 6 (A), the gray-colored portion is a virtual reference line based on the principle described above, and the portion above the reference line appears white and the portion that appears to float above the other portions,
It is a figure showing the distribution degree of a portion below the reference line that appears black and recedes from the other portions, and the peak portion appears to be the most white, that is, the most raised. As can be seen from FIG. 5 (A) or 5 (B), the most magnetic substance is parallel to the coating surface because the magnet 31
It is not on the edges 31a, 31b but at a position slightly deviated therefrom, that is, the solid line portions 35a, 35b in FIG. 5 (B). In the present embodiment, the plurality of patterns has the shape of four regular hexagonal nuts on the same radius, but the number of patterns is not limited to one, but two or more patterns on the same radius and in the circumferential direction are equal. As long as the positions of the intervals are maintained, the shape and the number (location) thereof are not limited and can be freely selected. Further, the number of patterns is not limited to a plurality of patterns appearing at independent positions, and even if the number of patterns as a whole is one, one pattern has the same radius and the same circumferential direction. A plurality of identical patterns having contours of a specific shape may be provided at intervals. Examples of such a pattern include a gear shape, a petal shape, and a star shape.

FIG. 7 shows a sectional elevation view of a coating apparatus for producing a wheel cover.

In FIG. 7, the base 111 is provided with a fixing member 121 for fixing the wheel cover body 101, which is made of wood, gypsum, or the like. When the wheel cover body 101 is injection-molded, a protrusion 109 is formed at the resin injection port. The projecting portion 109 is cut after painting. In the present embodiment, the projection 109 is provided on the upper end of the holding device 115 that can move up and down, and the holding device 1 is provided.
A guide member 113 held in the center by being held by 17
It is fixed to the fixing member 121 in cooperation with. The fixing member 12 is provided at a position facing the back surface of the wheel cover body 101.
A plurality of magnet mounting portions 121a, 121a, ... For mounting the magnet 119 on a part of the magnetic disk 1. Each of the magnet mounting portions 121a, 121a, ... Has four magnets 119, 119, ... As shown in FIGS.
The upper surface of the wheel cover body 101 and the surface of the wheel cover body 101 are formed at the same distance (dimension). In addition,
The magnet mounting portions 121a, 121a, ... Are recesses for mounting magnets for pattern formation. The nut-shaped magnets 119, 119, ... Are symmetrical with respect to the point P as shown in FIG. 8 so that the magnets 119, 119 ,. It is located in.

A method of manufacturing a vehicle wheel cover using the above apparatus will be described.

First, the magnet mounting portions 121a, 121a, ...
A plurality of magnets 11 having the same magnetic force for pattern formation.
, 119, ... Are arranged and mounted on the upper part of the base 111. Next, the vehicle wheel cover main body 101 for forming a pattern is mounted from above the fixing member 121. To mount the wheel cover main body 101, the protrusion 109 is held by a holding device 117 and pulled downward by a holding device 115, and an appropriate pressure is applied to the magnet 119 and the back side of the wheel cover 101 so that the respective magnetic fields are different from each other. The pattern parts should be generated uniformly.
After fixing the wheel cover body 101, a transparent liquid coating material in which the fine flake-shaped magnetic material and the solvent are mixed almost uniformly is uniformly applied by, for example, a spray gun. Then, a pattern appears on the coating film according to the above-described principle. When the solvent volatilizes and the viscosity of the coating film increases to prevent the magnetic substance from moving, the vehicle wheel cover is removed from the fixing member 121 and dried by a known method.

In the method of the above-mentioned embodiment, the coating material in which the fine flake-shaped magnetic material is mixed is applied in the state where the magnetic field is previously formed, but this step may be reversed. That is, after applying the coating material, the coating material still maintains fluidity, and while the magnetic material in the coating film can move and change its direction, a magnetic field is formed from above or below the wheel cover,
You can also make the pattern appear.

FIG. 9 shows another embodiment in which the magnet is arranged on the front surface side of the wheel cover body. The method and apparatus shown in FIG. 9 is substantially the same as the method and apparatus shown in FIG.
9 differs from the point provided on the front surface side of 9 in that a means for supplying air or warm air is provided. That is, in FIG. 9, one end of the doubled lid 131 is rotatably attached to the base 1 by a hinge 133 or the like.
35, the other end of which has a plurality of magnets 147, 147, ... Provided on the inner cover 137 of the lid 131, so that each of them forms a substantially uniform magnetic field on the surface of the wheel cover body 139. Stopper 139 to stop at
To provide. The inner cover 137 has an air supply port 151.
A plurality of ventilation holes 141, 141, ... For diffusing and passing the supplied air and a plurality of discharge holes 143, 143 ,.
Further, a plurality of magnets 1 for forming a pattern are formed on the side of the inner cover 137 facing the surface of the wheel cover body 139.
47, 147, ... Even if the magnetic fields interfere with each other to disturb the direction of the lines of magnetic force, the disturbance is arranged at a balanced position when observed as a whole wheel cover. For example, in this embodiment as well, as in FIG. 8, they are arranged on the same radius and at equal intervals in the circumferential direction. The outer cover 145 of the lid 131 has an air or warm air supply port 151.

Using the above-mentioned apparatus, after applying the coating material in which the flaky magnetic material is mixed to the wheel cover body 139 with the lid 131 opened, the lid is closed as shown in FIG. A magnetic field is formed by 147, and air, preferably warm air, is supplied by the air supply means to volatilize the solvent in the paint.

In the method of this embodiment, the distance between the surface of the magnet and the coating surface is not limited by the thickness of the wheel cover body, so that the distance can be set freely and, as a result, the magnetic force exerted on the coating surface is increased. Can be adjusted. Further, the present invention can be applied to a case where there is a rib or the like on the back surface corresponding to the portion of the wheel cover body where the pattern is formed, and the magnet cannot be arranged on the back surface.

In the present invention, the coating material to be applied is liquefied with a transparent solvent, and a large number of fine flake-shaped magnetic materials, in the present embodiment, minute flake of Ni are mixed in the coating material, and further quick drying The thinner is mixed so that it can be easily sprayed by increasing the viscosity and decreasing the viscosity.

While the aforesaid paint is being stirred, the same spray gun 91 as above is applied. For the coating, the wheel cover body 101 is rotated while being uniformly and thinly coated. After painting, in the same manner as above, the wheel cover 10
1 is removed from the fixing member 121 and dried.

The coating surface may be semitransparent,
Further, it may be a light color such as white or yellow that allows some light rays to pass therethrough, and these are “transparent or translucent”.
Included in.

The material and shape of the article to be coated, that is, the vehicle wheel cover body used in the present invention is not particularly limited. It is particularly preferable to use a non-magnetic material such as plastic or aluminum, but a ferromagnetic material such as iron or an alloy containing iron may be used. Its shape, especially the thickness of the part to be coated, is constant, that is, when a magnet is pressed against the back, a magnetic field appears on the surface of the wheel cover body to control the vertical angle of the flake-shaped magnetic material to be coated. Any thickness will do. It can be applied to different thicknesses by combining the viscosity of the paint used and the strength of the magnetic force.

The fine flake-shaped magnetic material used in the present invention is preferably in the form of a thin plate, and is not limited to its planar shape. Further, the material is preferably a ferromagnetic material such as iron, nickel, cobalt or alloys thereof, and is a substance that is strongly magnetized in that direction by an external magnetizing action. However, it may be a diamagnetic substance such as bismuth, antimony, copper or zinc. The magnetic substance may be the above-mentioned ferromagnetic substance coated with a gold-colored substance or an aluminum-colored substance, or may be colored with a non-magnetic paint. The size is preferably 1 to 50 μ in the longitudinal direction, and more preferably 20 to 50 μ. The thickness is preferably 5 to 20 μ.

The coating material used in the present invention is preferably a resin which can be dried or reacted and cured at room temperature, but it may be a heat-curable type or a UV irradiation-curable type. For example, alkyd resin, polyester resin, acrylic resin, urethane resin,
It may be vinyl resin or the like. As the solvent, an organic solvent or water is used. As the volatile solvent, those having a diluting property and a volatile property, for example, thinner and the like are preferable. Particularly, if the proportion of a low boiling point solvent such as methyl ethyl ketone is increased, the quick drying property is improved.

The mixing ratio of the magnetic powder and the vehicle is preferably 10 to 20% by weight based on 100% by weight of the vehicle.

The coating machine for spray coating may be one used for ordinary spray coating and is not particularly limited.

When the coating material is a thermosetting type, after the magnetic material in the coating film has stopped moving, it is exposed to warm air, infrared rays, etc.
It is necessary to heat appropriately. When the paint is UV curable,
Similarly, ultraviolet irradiation with a mercury lamp or the like is required.

In any of the above embodiments, it is preferable to form a transparent or semitransparent coating film containing no magnetic substance on the surface of the coating film containing a magnetic substance.

The application is not limited to spraying, but includes depping, flow coating and the like.

[0040]

As described above, according to the present invention, even if the magnetic fields formed by the respective magnets influence each other and the lines of magnetic force interfere and are disturbed, the arrangement of the magnets maintains a specific relationship. Since they are arranged, those disturbances are well balanced when viewed as the entire wheel cover, and there are no locally disturbed portions, so the pattern formed on the wheel cover main body is uniform as a whole. It has the effect of appearing in the pattern. Further, it becomes possible to form a pattern coating film with a simple device.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing that magnetic pieces take different directions depending on a magnetic field.

FIG. 2 is a diagram showing a correlation between a direction of a magnetic piece and reflected light.

FIG. 3 is a front view of the wheel cover according to the first embodiment.

4 is a cross-sectional view taken along the line AA in FIG.

FIG. 5 is a partially enlarged view of a pattern forming portion.

FIG. 6 is a diagram showing the intensity distribution of a pattern and the corresponding lines of magnetic force and the orientation of a magnetic body.

FIG. 7 is a diagram showing a method and an apparatus for carrying out the first embodiment.

FIG. 8 is a diagram showing an arrangement of magnets for forming four patterns.

FIG. 9 is a diagram showing a method and an apparatus according to another embodiment.

[Explanation of symbols]

 11 Product to be coated 13 Magnet 15 Coating film 17 Flake-shaped magnetic body 101 Wheel cover body 107 Hexagon nut-shaped pattern 119 Magnet 121 Fixing member

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] August 7, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

Title: Vehicle wheel cover and method for manufacturing the same

[Claims]

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheel cover for a vehicle and a manufacturing method thereof, and more particularly to a wheel cover having a pattern on its surface and a manufacturing method thereof.

2. Description of the Related Art Conventionally, a pattern attached to a wheel cover for a vehicle is drawn by mask painting or the like after the wheel cover body is molded, or the pattern portion of the wheel cover body is uneven to give a three-dimensional appearance. It was usually performed by injection molding or the like. The former one in which a pattern is drawn has a poor three-dimensional effect, and it is difficult to create an excellent three-dimensional pattern for the wheel cover. In the latter case where the shape of the wheel cover main body is made uneven by injection molding etc., of course, although it looks three-dimensional, dirt, such as mud, tends to be attached to the uneven parts, especially the recesses, and the adhered dirt is removed by washing with water etc. It wasn't easy either. Furthermore, when the wheel cover body is formed into a concavo-convex shape by injection molding of synthetic resin or the like, the resin passes through the portion of the injection mold that corresponds to the concavo-convex portion so that flow marks or welds are formed on the surface of the wheel cover body. Lines are apt to occur, the mechanical strength is lowered at the portion where the weld line is produced, and the flow mark has a drawback of impairing the appearance.

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned drawbacks in forming an uneven shape by injection molding, a problem of removing stains, and a problem of lowering mechanical strength.

In order to solve the above-mentioned problems, a vehicle wheel cover according to the present invention is provided with a large number of fine flake-shaped magnetic particles on a flat portion of the surface of the body of the wheel cover formed into a substantially disc shape. A transparent or semi-transparent coating film in which the body is mixed forms a pattern having a contour of a predetermined shape on the flat portion of the surface of the wheel cover body, and the direction of the magnetic substance in the coating film is in the central portion of the contour. It seems that the contour on the flat surface is substantially parallel to the above-mentioned coating surface and is oriented in a direction substantially intersecting the coating surface on both sides of the contour, and the contour on the flat surface is projected or receded as compared with other portions. It was made visible to me. A method for manufacturing a vehicle wheel cover according to the present invention is a method of applying a transparent or semi-transparent liquid coating in which a large number of fine flake-shaped magnetic materials are mixed on the surface of a vehicle wheel cover body formed in a substantially disc shape. And the magnetic substance in the coating material is movable before or after the coating step, the coating is applied at a predetermined radius from the center of the wheel cover body and at equal intervals in the circumferential direction. It has a portion that is oriented in a direction substantially parallel to the film surface, and this portion forms a magnetic field that generates magnetic force lines that delineate a predetermined shape on the coating film surface, and the position and / or angle of the magnetic substance is determined by The method includes the steps of moving along the direction and the step of solidifying the coating film to such an extent that the position and / or angle of the magnetic material in the applied coating film does not change.

[Function] The uneven pattern that appears on the wheel cover is
A large number of fine flake-like magnetic substances are mixed in a transparent or semi-transparent coating film and formed by mutual changes in the directions of the magnetic substances, and the pattern that appears gives a three-dimensional effect. The surface itself of the cover body is not uneven. Further, even when injection-molded, the wheel cover has less deterioration in mechanical strength and appearance. Further, the magnetic fields for forming the pattern at a plurality of locations are arranged so that the mutual interference of the magnetic fields is uniform over the entire wheel cover. It is not evenly disturbed.

EXAMPLES FIG. 1 is a diagram for explaining the principle of a patterned coating film using a magnetic field. In FIG. 1, reference numeral 11 is an article to be coated made of a non-magnetic material such as plastic. For example, the magnet 13 such as a plate-shaped permanent magnet is processed in accordance with the pattern to appear,
It is brought into close contact with the back side of the article to be coated 11 to form a predetermined magnetic field. The dotted lines shown in the figure indicate the directions of the magnetic lines of force formed. Magnet 13 has N pole on the upper side and lower side on the paper surface
Is the S pole. The north pole and the south pole may be opposite. Porcelain
The magnetic field lines within the range of the shape of the stone 13 (A region shown in the figure) are oriented almost at right angles to the coating surface, and in the portion slightly away from the end of the magnet 13 (B region shown in the figure). The direction of the lines of magnetic force changes sharply and becomes parallel to the surface of the coating film (the tangential direction of the lines of magnetic force is parallel to the surface of the coating film), and the intersecting angle of the lines of magnetic force applied to both sides of the parallel portion is approximately 90 °. Further, in a portion sufficiently distant from the magnet (area D in the figure), the magnetic force lines are oriented substantially at right angles to the coating surface. Magnetic charge m, permeability μ,
At a distance r, the magnetic field strength H is H = m / 4πμ · R /
It is indicated by r ³ . In the formula, capital letters indicate vectors. H decreases in inverse proportion to the square of the distance. Therefore, in the area D, the strength of the magnetic field is significantly smaller than that in the areas A and B. In the place where such a magnetic field is formed, a magnetic material 17 made of fine flaky iron, nickel or the like or an alloy thereof is placed in a transparent or translucent liquid coating material using a volatile solvent. Mix evenly, atomize this, and spray paint. As shown in FIG. 1, the magnetic substance 17 sprayed in the magnetic field has an angle (hereinafter referred to as an upright angle) with respect to the coating film surface along a magnetic line of force.
The vertical angle θ is fixed while being held at θ by the paint sprayed together with the magnetic body 17 . At this time, the density of the sprayed magnetic body 17 is slightly increased at a place where the magnetic flux density is strong. As shown in FIG. 1, the arrangement of the magnetic bodies 17 is such that a larger amount of the magnetic bodies 17 are substantially perpendicular to the coating surface in the area A than in the other areas, and in the area B which is the outline of the pattern. In the center, more magnetic bodies 17 are parallel to each other than in other areas, and on both sides thereof, more magnetic bodies 17 are oblique than in other areas, and intersect at an angle of about 90 °. B in C area
Although magnetic body 17 of those regularity less than the area is fixed at an angle with respect to substantially coating surface along the magnetic field lines, less susceptible to the influence of the magnetic field is weak force in the D region magnetic body 30
Turn in random directions. That is, in the B region, the magnetic material
Reference numeral 17 is substantially parallel to the coating surface, and in regions A and C, it is oriented substantially in the direction intersecting the coating surface. FIGS. 2A to 2D are diagrams showing that the intensity and direction of reflected light differ depending on the vertical posture of the magnetic body 17 . 2A to 2D, the coating material 15 is formed by passing the magnetic material 17 through spray coating three times (one reciprocation and a half) on the article 11 to be coated.
A transparent coating film 19 is formed on the coating film 15 .
In the following description, the surface of the coated product 11 is Ni flaky fine powder (surface Teisu a normal silver-white) and transparent liquid paint mixed with the (nickel) was spray applied as a magnetic body in gray This is the case in which the coating film 15 is formed by Figure 2
(A) shows a state in which the magnetic body 17 is perpendicular to the coating film.
Most of the light applied from the upper surface (when the article to be coated 11 is viewed from the front) is transmitted or absorbed, and the reflected light is small, so that it appears blacker than the gray color and recedes from the other portions. FIG. 2B shows a state in which the magnetic body 17 is parallel to the coating film surface. Since most of the incident light from the upper surface is reflected, it looks whiter than gray color and looks more floating than other parts. FIG. 2C shows a case where the postures are randomly arranged, and the incident light from the upper surface is scattered and appears gray color, which cannot be seen even if it floats up, nor when it recedes, and it cannot be seen three-dimensionally. .. FIG. 2D shows a case where the magnetic body 17 is obliquely arranged. When viewed from the direction of the arrow L, it appears whiter than the gray color and appears to float, but when viewed from the direction of the arrow R, it appears to be more gray than the gray color. It looks black and seems to recede more than other parts. In the above description, it is presumed that the white color appears because the magnetic body 17 is silver-white and reflects light. If the magnetic body 17 is previously coated with a golden substance or the like, the portion looks golden. It should be noted that when the surface of the magnetic body 17 is a dark color such as black, it is presumed that the above description is reversed. 3 to 6 show a first embodiment of the present invention. 3 and 4, the vehicle wheel cover main body (hereinafter referred to as " wheel cover ").
The main body 101 is injection-molded from a non-magnetic plastic material into a substantially disc shape.
The A shear plane shown in FIG. On the rear surface of the wheel cover body 101, a plurality of mounting portions 103, 103, ... For mounting on a road wheel of a vehicle, and a plurality of ventilation holes 105,
105, ... Are provided. In FIG. 4, the wheel cover body 101 is formed so as to form a part of the outer surface of a sphere having a predetermined radius, and the outer surface thereof is a flat surface except for the edge portions of the ventilation holes 105, 105, .... ing. Here, the term "flat" is not limited to the outer surface of a sphere having an infinite radius, but actually, a curved surface having a radius of about 100 mm or more may be continuous. That is, a flat surface is formed except for a portion such as an edge portion of the vent holes 105, 105, ... In this embodiment, the nut patterns 107, 10 having the contours of four hexagonal nuts are formed on the surface of the wheel cover body 101.
7, ... are revealed. The outline of the nut pattern 107 is a regular hexagon on the outside and a circle on the inside. The nut pattern appears at a constant distance in the radial direction from the wheel cover center P and at equal intervals in the circumferential direction. That is, even if the magnetic fields interfere with each other in the process of forming the nut patterns 107, 107, and the direction of the lines of magnetic force is disturbed, that is, the contour of the pattern 107 is partially disturbed, the disturbance is observed as the entire wheel cover. Sometimes it appears in a balanced position. The nut pattern 107 is shown in FIG.
(A), 5 (B) and FIGS. 6 (A), 6 (B), 6 (C)
Will be explained. 5A and 5B show a case where a magnetic field is formed on a flat outer surface of the wheel cover body 101 by a plate-shaped nut-shaped magnet 31 having a regular hexagonal outer peripheral edge and a round hole in the center. The pattern that appears is enlarged. Edge 31a indicated by the dotted line of FIG. 5 (B), the 31b
When the nut-shaped magnet 31 that it has is brought into close contact with the back side of the wheel cover main body 101 as shown in FIG. 5A, the magnetic force lines appear as the dotted lines in the figure. FIG. 6 (B)
Shows the typical orientation of the magnetic body 17 in each part.
Of. Fig. 6 (A) shows a gray color according to the principle described above.
The visible part is the virtual reference line, and the part above the reference line is
The part that looks white and looks higher than the other parts, and the reference line
The lower part looks black and looks more recessed than the other parts
It is a figure showing the degree of distribution of the part, and the peak part is the most
Showing white, that is, the most visible
There is. As can be seen from FIG. 5 (A) or 5 (B), the magnetic material
Most of 17 is parallel to the coating surface because the magnet 3
1 rather than on the edges 31a, 31b, but at a position slightly deviated from that, that is, the contours 35a, 3 shown by the solid line in FIG. 5B.
5b. In the present embodiment, the plurality of patterns has the shape of four regular hexagonal nuts on the same radius, but the number of patterns is not limited to one, but two or more patterns on the same radius and in the circumferential direction are equal. As long as the positions of the intervals are maintained, the shape and the number (location) thereof are not limited and can be freely selected. In addition, the number of patterns is not limited to those appearing in multiple independent positions,
The overall pattern may be one, or one pattern may have a plurality of identical patterns having contours of a specific shape on the same radius and at equal intervals in the circumferential direction. .. Examples of such a pattern include a gear shape, a petal shape, and a star shape. Figure 7
Is a cross-section of the coating equipment for manufacturing wheel covers.
It is a front view. In FIG. 7, the base 111 is
Wood or stone for fixing the wheel cover body 101
A fixing member 121 made of, for example, a sea urchin is provided. Whee
Resin injection port when injection molding the main cover body 101
A protrusion 109 is formed in the portion. Cut the protrusion 109 after painting
Is done. In this embodiment, the protrusion 1
09 is provided at the upper end of the holding device 115 that can move up and down.
Is clamped by the clamping device 117, it is secured to the guide member 113 in cooperation with the fixing member 121 provided at the center. At a position facing the back surface of the wheel cover body 101, a plurality of magnet mounting portions 121a, 121a, ... For mounting the magnet 119 on a part of the fixing member 121 are provided. Each magnet mounting part 121a, 121a, ...
Is the four magnets 11 as shown in FIGS.
From the upper surface of 9, 119, ..., the wheel cover main body 101
Are formed so as to maintain the same distance (dimension) to the surface. The magnet mounting portions 121a, 121a, ... Are formed in a concave shape for mounting magnets for pattern formation.
ing. The nut-shaped magnets 119, 119, ... Are symmetrical with respect to the point P as shown in FIG. 8 so that the magnets 119, 119 ,. It is located in. A method of manufacturing a vehicle wheel cover using the above device will be described. First, in the magnet mounting parts 121a, 121a, ...
A plurality of magnets 119, 1 having the same magnetic force for pattern formation
.. are arranged and attached to the upper part of the base 111. Next, the vehicle wheel cover main body 101 for forming a pattern is mounted from above the fixing member 121. The wheel cover body 101 is mounted on the protrusion 1
09 is held by the holding device 117 to hold the holding device 115.
Then, the magnet 119 and the back side of the wheel cover 101 are applied with appropriate pressure so that each magnetic field is uniformly generated in each pattern portion. After fixing the wheel cover body 101, a transparent liquid coating material in which the fine flake-shaped magnetic material and the solvent are mixed almost uniformly is uniformly applied by, for example, a spray gun. Then, a pattern appears on the coating film according to the above-described principle. When the solvent volatilizes and the viscosity of the coating film increases to prevent the magnetic substance from moving, the vehicle wheel cover is removed from the fixing member 121 and dried by a known method. In the method of the above-described embodiment, the coating material in which the fine flake-shaped magnetic material is mixed is applied in the state where the magnetic field is previously formed, but this step may be reversed. That is,
After applying the paint, the paint still maintains fluidity, and while the magnetic material in the paint film can move and change its direction,
A magnetic field can be formed from above or below the wheel cover body 101 to reveal the pattern. FIG. 9 shows another embodiment in which the magnet is arranged on the front surface side of the wheel cover body. The method and apparatus in FIG.
Is similar to the method and apparatus shown in, but with a magnet
The difference is that 147 is provided on the front surface side of the wheel cover body 139 and that a means for supplying air or warm air is provided.
That is, in FIG. 9, one end of the doubled lid 131 is rotatably provided on the base 135 by a hinge 133 or the like, and the other end is provided with a plurality of magnets 14 provided on the inner cover 137 of the lid 131.
7,147, ... is, so that each forms a substantially uniform magnetic field at the surface of the wheel cover body 13 9 is provided with a stopper 13 6 to stop at an appropriate position. The inner cover 137 has a plurality of ventilation holes 141, 141 for diffusing and passing the air supplied from the air supply port 151.
... and a plurality of discharge holes 143 for discharging the air
143, ... Are provided. In addition, the inner cover 137
On the side facing the surface of the wheel cover main body 139, even if the magnetic fields of a plurality of magnets 147, 147, ... Forming each other interfere with each other to disturb the direction of the magnetic force lines, the disturbance is the entire wheel cover. It is placed in a well-balanced position when observed as. For example, in this embodiment as well, as in FIG. 8, they are arranged on the same radius and at equal intervals in the circumferential direction. The outer cover 145 of the lid 131 has an air or warm air supply port 151. Using the above-described apparatus, after the flaky paint containing magnetic mix was applied to the wheel cover body 139 in a state of opening the lid 131 to close the lid 131, as shown in FIG. 9, the magnet 147 To form a magnetic field and to supply air, preferably warm air, by an air supply means to volatilize the solvent in the paint. In the method of this embodiment, the distance between the surface of the magnet 147 and the coating surface is not limited by the thickness of the wheel cover body 139, so that the distance can be set freely, and as a result, the magnetic force exerted on the coating surface can be reduced. Can be adjusted. Further, the wheel cover body 139 can be applied to a case in which the magnet 147 cannot be arranged on the back surface because there is a rib or the like on the back surface corresponding to the portion where the pattern is formed on the front surface. In the present invention, the coating material to be applied is liquefied with a transparent solvent, and a large number of fine flake-shaped magnetic materials, in the present embodiment, Ni minute flake particles are mixed into the coating material to further enhance the quick-drying property. In addition, thinner is mixed to reduce the viscosity and facilitate spraying. The coating surface may be semi-transparent, or may be a light color such as white or yellow that allows some light rays to pass therethrough. included. The object to be coated used in the present invention, that is, the wheel cover body 101 for a vehicle, 1
The material and shape of 39 are not particularly limited. It is particularly preferable to use a non-magnetic material such as plastic or aluminum, but a ferromagnetic material such as iron or an alloy containing iron may be used. Its shape, especially thickness constant thickness of the portion to be coated, i.e. only magnetic field wheel of when hit down the magnets 119,147 on the back can be controlled standing angle of the flaky magnetic body 17 to be coated It may be any thickness as long as it appears on the surface of the cover bodies 101 and 139. It can be applied to different thicknesses by combining the viscosity of the paint used and the strength of the magnetic force. The fine flake-shaped magnetic body 17 used in the present invention is preferably in the shape of a thin plate, and is not limited to its planar shape. The material is a ferromagnet such as iron, nickel, cobalt or their alloys,
It is preferable that the substance is strongly magnetized in that direction by an external magnetizing action. However, it may be a diamagnetic substance such as bismuth, antimony, copper or zinc. Further, the magnetic body 17 may be the above-mentioned ferromagnetic body coated with a gold-colored material or an aluminum-colored material, or colored with a non-magnetic paint. Its size is from 1 to 1 in the longitudinal direction.
50 μ, preferably 20 to 50 μ is preferable. Thinness is 5
-20 μm is preferable. The paint used in the present invention is preferably a resin that can be dried or cured by reaction at room temperature, but it may be a heat-curable type or a UV irradiation-curable type. For example, it may be an alkyd resin, a polyester resin, an acrylic resin, a urethane resin, a vinyl resin, or the like. As the solvent, an organic solvent or water is used. As the volatile solvent, those having dilutability and volatility, for example, thinner and the like are preferable, in particular,
If the proportion of low boiling point solvent such as methyl ethyl ketone is increased, the quick-drying property is improved. The mixing ratio of the magnetic powder and the vehicle is preferably 10 to 20% by weight based on 100% by weight of the vehicle. The spray coater may be one used for ordinary spray coating and is not particularly limited. Also, when the paint is a thermosetting type, after the magnetic substance in the coating film does not move,
It is necessary to appropriately heat with warm air or infrared rays. When the coating material is UV curable, it is necessary to irradiate it with ultraviolet rays from a mercury lamp or the like. In any of the above examples, it is preferable to form a transparent or semi-transparent coating film containing no magnetic substance on the surface of the coating film containing a magnetic substance. Also,
Application is not limited to spraying, but includes depping, flow coating, and the like. Hereinafter, the observation results of the cross section of the coating film magnetically coated under the following conditions and methods will be described with reference to the photographs and drawings shown in FIGS. I. Conditions (i) Material to be coated (Item 11 to be coated) ABS resin flat plate (100 x 150 x 2.0 mm) Slightly yellowish ivory color (ii) Adjustment paint (1) For base coat (a) Main ingredient "Soflex Two types, "5300N" and "Soflex 5000N", were used.・ ・ ・ Kansai Paint Co., Ltd., acrylic urethane-based resin coating curing agent "Soflex 5300 curing agent"("Soflex5000N" main agent "Soflex 120 curing agent") ・ ・ ・ Kansai Paint Co., Ltd. ), Acrylic urethane resin paint mixing ratio (weight) "Soflex 5300N": "Soflex 5300
Curing agent = 100: 15 "Soflex 5000N": "Soflex 120 curing agent" = 100: 10 Solvent "Retan PG thinner" ... Kansai Paint Co., Ltd.
Manufactured by Xylene-based thinner, the mixed solution of the main agent and the curing agent was diluted and the viscosity was adjusted to 12.0 to 12.5 seconds with a Ford cup # ₄ . (B) Magnetic material "NOVAMET FINE WATER
GRADE "... Flake Ni fine powder sold by Inco (Canada), which has a particle size of 94% minus 325 mesh and is classified to have an average particle size of about 20 µ. The surface has a silver-white metallic luster. Mixing ratio (weight) Vehicle: Magnetic material = 100: 35 (2) For top coat (a) Main ingredient "Soflex 5000 Top Clear" transparent color ... Kansai Paint Co., Ltd. acrylic urethane resin paint curing agent " Soflex 120 Hardener "... Kansai Paint Co., Ltd., acrylic urethane resin paint mixing ratio (weight) Main agent: Hardener = 100: 10 (iii) Magnet" Magnrubber 14VS "... Nichirei Magnet Co., Ltd. Using a sheet-shaped rubber magnet (thickness 2.0 mm, one side is N pole, the other side is S pole) made by punching into a predetermined shape. Residual magnetic flux density 2342G, maximum energy product 1.39M
GOe II. Pattern sample preparation method The above-mentioned sheet-shaped rubber magnet was punched out into a donut shape having dimensions as shown in FIG. 10, and it was attached with an adhesive tape so that its N-pole surface faces the back surface of the material to be coated. Next, the above-mentioned coating material for adjusting base coat (the main agent is "Soflex 5300N") was applied from the surface side of the material to be coated with a spray gun so that the coating film thickness after solidification would be 20 to 30 µ. Then, after leaving it for 2 to 3 minutes to allow the magnetic material to not move in the coating film, let it stand for another 30 minutes to volatilize the solvent, and then remove the magnet from the material to be coated. It was put into a drying device to solidify the formed coating film. After that, the coating film thickness after solidifying the top coat paint is about 40
The sample was applied so that it had a thickness of μ, and was solidified by applying a drying device to obtain a sample. In addition, it was visually recognized from the surface side of the material to be coated that the pattern was formed and formed from the time of applying the base coat paint. Next, when "Soflex 5000N" was used as the main agent and the same coating as above was performed, almost the same results were obtained. In addition, in FIG. 10, a to e of the pattern portion
The relation between the unevenness of the part and the visual color Is. III. Preparation method of sample for speculum As sample for speculum, "Soflex 5300N"
Was used as the main agent. Line C-C, C'of FIG.
A rectangular parallelepiped sample S obtained by cutting along the line -C 'is set on a petri dish with the CC cross section facing upward as shown in FIG. 11, and then the molten resin is filled with the petri dish until the CC cross section is filled. It was poured into and solidified. After the sample S was embedded in the solidified resin and removed from the petri dish, the C-C cross section was polished with sandpaper to give a smooth surface. IV Microscope photograph Microscope magnification about 100 times, BB cross section of the base coat coating film side with a camera a, b, c, d, e
Observation and photography by dividing into parts V Microscope observation results See FIGS. 10 to 22 and FIG.

As described above, according to the present invention, even if the magnetic fields formed by the respective magnets influence each other and the lines of magnetic force interfere and are disturbed, the arrangement of the magnets maintains a specific relationship. Since they are arranged, those disturbances are well balanced when viewed as the entire wheel cover, and there are no locally disturbed portions, so the pattern formed on the wheel cover main body is uniform as a whole. It has the effect of appearing in the pattern. Further, it becomes possible to form a pattern coating film with a simple device.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a magnetic body taking different directions depending on a magnetic field .

FIG. 2 is a diagram showing a correlation between a direction of a magnetic body and reflected light.

FIG. 3 is a front view of the wheel cover according to the first embodiment.

4 is a cross-sectional view taken along the line AA in FIG.

FIG. 5 is a partially enlarged view of a pattern forming portion.

FIG. 6 is a diagram showing the intensity distribution of a pattern and the corresponding lines of magnetic force and the orientation of a magnetic body.

FIG. 7 is a diagram showing a method and an apparatus for carrying out the first embodiment.

FIG. 8 is a diagram showing an arrangement of magnets for forming four patterns.

FIG. 9 is a diagram showing a method and an apparatus according to another embodiment.

FIG. 10 shows the positional relationship between the magnet and the pattern appearing on the coating film formed by magnetic coating on the surface of the coated product, (a)
Is a front view and (b) is a cross-sectional view taken along line BB of (a).

11A and 11B show a sample S for observation with a microscope, FIG. 11A is a perspective view showing a state where the sample is stored in a petri dish, and FIG. 11B is a perspective view showing a position for observation with a microscope. ..

FIG. 12 is a schematic view in which flakes in a coating film formed by magnetic coating have a random vertical angle with respect to the coating film surface, (a) is a microscope photograph, and (b) is a copy of the microscope photograph.

13A and 13B are flakes in a coating film formed by magnetic coating showing an upright angle slightly to the upper left with respect to the coating film surface, FIG. 13A is a microscope photograph, and FIG. 13B is an explanatory view copying a microscope photograph. ..

FIG. 14 shows a state in which flakes in a coating film formed by magnetic coating have a large vertical angle to the upper left with respect to the coating film surface, (a) is a microscope photograph, and (b) is an explanatory view copying a microscope photograph. Is.

FIG. 15 shows a state in which the flakes in the coating film are almost parallel to the coating film surface by magnetic coating, and (a) is a photomicrograph,
(B) is an explanatory view copying a micrograph.

FIG. 16 shows a state in which flakes in a coating film formed by magnetic coating are parallel to the coating film surface, (a) is a photomicrograph, and (b) is a photograph.
[Fig. 3] is an explanatory view copying a micrograph.

FIG. 17 shows a state in which flakes in a coating film formed by magnetic coating gradually start to rise from the right end to the left end with respect to the coating surface, (a) is a photomicrograph, and (b) is a microscope. It is explanatory drawing which copied the photograph.

FIG. 18 shows a state in which flakes in a coating film formed by magnetic coating are located on the upper right side at a large vertical angle with respect to the coating surface (a).
Is a micrograph, and (b) is an explanatory view copying the micrograph.

FIG. 19 shows flakes in a coating film formed by magnetic coating from a right end to a left end from the right end to an upper right corner → an upper left corner, where (a) is a micrograph and (b) is a micrograph. It is explanatory drawing which copied.

FIG. 20 shows a state in which flakes in the coating film due to magnetic coating gradually decrease in vertical angle from the right end to the left end with respect to the coating film surface, and gradually become parallel to the coating film surface,
(A) is a microscope photograph, (b) is explanatory drawing which copied the microscope photograph.

FIG. 21 shows a state in which flakes in a coating film formed by magnetic coating are substantially parallel to the coating film surface, (a) is a microscope photograph, and (b) is an explanatory view copying a microscope photograph.

22A and 22B show a state in which flakes in a coating film formed by magnetic coating form a right-angled upright angle with respect to the coating surface, FIG. 22A is a microscope photograph, and FIG. Is.

FIG. 23 is a table showing the results of microscope observation for each observation site.

[Explanation of reference numerals] 11 article to be coated 13 magnet 15 coating film 17 ( flake) magnetic material 101 wheel cover body 107 hexagon nut shape pattern 119 magnet 121 fixing member

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 4]

[Figure 3]

[Figure 5]

[Figure 6]

[Figure 7]

[Figure 8]

[Figure 9]

[Fig. 12]

[Fig. 13]

FIG. 14

[Figure 10]

FIG. 11

FIG. 15

FIG. 16

FIG. 17

FIG. 18

FIG. 19

FIG. 20

FIG. 21

FIG. 22

FIG. 23

Claims (4)

[Claims] 1. A flat portion of the surface of the wheel cover body is formed by a transparent or translucent coating film in which a large number of fine flake-shaped magnetic materials are mixed on the surface of the body of the wheel cover formed in a substantially disc shape. A pattern having a contour of a predetermined shape is formed, and the direction of the magnetic material in the coating film is substantially parallel to the coating film surface in the substantially central portion of the contour, and substantially on the coating film surface at both sides of the contour. The wheel cover for a vehicle, which is oriented in a direction intersecting with, so that the contour of the flat surface can be visually recognized as protruding or retracting as compared with other portions. 2. The contour of the pattern is hexagonal,
2. The vehicle wheel cover according to claim 1, wherein a plurality of hexagonal contour patterns are provided on the same radius from the center of the wheel cover body and at equal intervals in the circumferential direction. 3. A step of applying a transparent or translucent liquid coating material containing a large number of fine flake-shaped magnetic materials on the surface of a vehicle wheel cover main body formed in a substantially disk shape, Before or after the magnetic substance in the paint is in a movable state, a direction substantially parallel to the coating film surface at a predetermined radius from the center of the wheel cover body and at equal intervals in the circumferential direction. A step of forming a magnetic field for generating magnetic field lines that delineate a predetermined shape on the coating film surface, and moving the position and / or angle of the magnetic body along the direction of the magnetic field lines. And a step of solidifying the coating film to such an extent that the position and / or angle of the magnetic material in the applied coating film does not change, the method for producing a wheel cover for a vehicle. 4. The vehicle according to claim 3, wherein a plurality of the magnetic fields are independently formed on the same radius from the center of the wheel cover body and at positions at equal intervals in the circumferential direction. Wheel cover manufacturing method.