JP2000247101A - High design wheel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the design property by successively forming a primer layer, a print layer and a topcoat layer on the design surface of a metallic wheel body having a design surface. SOLUTION: In a metallic wheel body 10 having a design surface 15, which is the side seen from the outside when a wheel is mounted on a motor vehicle, including the front surface of the disc of the wheel body 10 and the inner surface of a decorative window formed on the disc, a chemical conversion coating layer 21, a primer layer 22, a print layer 23, and a topcoat layer 24 are formed successively on the design surface 15 to improve the design property. When the wheel body 10 is made of aluminum, the chemical conversion coating layer 21 is formed in order to improve the corrosion resistance and the adhesion of coating material. The primer layer 22 is formed preferably by powder painting by use of a resin coating material. The print layer 23 is formed on the primer layer 22 by hydraulic transfer, and the topcoat layer 24 using any one of acrylic resin, urethane resin and fluorine resin is formed on the print layer 23 in order to provide high weather resistance.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-design wheel having excellent design variations.

[0002]

2. Description of the Related Art In recent years, there has been a demand for diversified designs and more prominent types of designs, that is, so-called high designs, for automobile wheels. In order to respond to such a tendency, the applicant tried a type of wheel in which a film having various patterns and designs was prepared and applied to the design surface of the wheel instead of the surface treatment by painting.

[0003]

However, this method is
Although it is effective on relatively flat design surfaces, it is difficult to apply films without wrinkles when trying to apply it to automobile wheels with complex design surfaces with many uneven cross-sections. It was difficult to secure. An object of the present invention is to provide a high-design wheel excellent in design variations with high quality.

[0004]

The present invention for achieving the above object is as follows. (1) A highly designed wheel in which a metal wheel body having a design surface and a primer layer, a printing layer, and a top coat layer are sequentially formed on the design surface of the wheel body. (2) The high-design wheel according to (1), wherein a chemical conversion coating layer is formed between the design surface and the primer layer. (3) The high-design wheel according to (1) or (2), wherein the top coat layer is made of one resin selected from an acrylic resin, a urethane resin, and a fluororesin. (4) The printing layer is printed by hydraulic transfer (3)
The high-design wheel described. (5) The high-design wheel according to (3) or (4), wherein the metal wheel body is an aluminum wheel. (6) The high-design wheel according to (5), wherein the primer layer is a resin paint. (7) The high-design wheel according to (3) or (4), wherein the metal wheel body is a steel wheel. (8) The high-design wheel according to (7), wherein the primer layer is a resin paint.

[0005] In the high-design wheel of the above (1) to (8), the design is formed by directly printing on the wheel instead of a simple painting or a film, so that a variety of design variations and a high-quality high-design wheel are provided. Wheel can be realized.

[0006]

1 and 2 show a high-design wheel according to a first embodiment (in the case of an aluminum wheel) of the present invention, and FIGS. 3 and 4 show a second embodiment (steel wheel) of the present invention. 3) shows a high-design wheel. Structural parts that are common or similar to both embodiments are given the same reference numerals throughout both embodiments.

First, the configuration of a part common to both embodiments is as follows.
This will be described with reference to FIGS. 1 and 2, for example. 1 and 2
As shown in the figure, the high-design wheel 1 of the present invention has a design surface 1
5, a wheel body 10 made of metal, a chemical conversion coating layer 21 formed on a design surface 15 of the wheel body 10, a primer layer 22 and a primer layer 22 formed thereon.
It is composed of a printing layer 23 formed thereon and a top coat layer 24 formed on the printing layer 23. Wheel body 10
Is made of aluminum or steel. The wheel body 10 includes a disk 11 and a rim 12. The disk 11 is provided with a decorative window 14. In the case of aluminum, the disk 11 and the rim 12 are manufactured integrally,
In the case of steel, the disk 11 and the rim 12 are manufactured separately and then welded to each other. Design surface 15
Is a surface that can be seen from the outside when the wheel 1 is mounted on an automobile, and includes the front surface 13 of the wheel body 10 and the inner surface of the decorative window 14.

Next, a structure specific to each embodiment of the present invention will be described. In the first embodiment of the present invention, as shown in FIGS. 1 and 2, a metal wheel body 10 is made of aluminum,
The design surface 15 comprises the aluminum wheel front surface 13 and the inner surface of the decorative window 14. The front surface 13 of the wheel body 10 is a cut surface (brilliant surface) obtained by performing a cutting process after casting, and the inner surface of the decorative window 14 is a casting surface.

First, a chemical conversion treatment (non-chromate or chromate) is performed on the surface of the aluminum wheel body 10 as a pre-treatment step in order to improve corrosion resistance and paint adhesion, thereby forming a chemical conversion coating layer 21. . The details of the pre-processing include the following method. (1) Degreasing + pickling + chemical treatment (chromate) (2) Degreasing (providing pickling effect) + chemical treatment (chromate) (3) Degreasing + pickling + chemical treatment (non-chromate) (4) Degreasing + acid Washing + chemical conversion treatment (non-chromate) + post-treatment (5) Degreasing (adding pickling effect) + chemical conversion treatment (non-chromate) (6) Degreasing (adding pickling effect) + chemical conversion treatment (non-chromate) + post-treatment In any of the pretreatments, a pickling step or a degreasing step with an acid pickling effect is performed, so that foreign substances such as iron or an oxide film of aluminum can be removed.
Compared with those subjected to the chemical conversion treatment, the adhesiveness with the paint can be increased and the corrosion resistance can be improved. It has been confirmed that the post-treatment after the chemical conversion treatment as described in (4) and (6) above is particularly effective.

Next, a primer layer 22 is formed on the chemical conversion film layer 21 formed in the pretreatment step. The primer layer 22 is preferably formed by powder coating in the sense that the unevenness of the skin caused by shot blasting of aluminum can be smoothed, but high-solid coating or water-based coating may be used. As the paint, a resin paint such as polyester, acrylic (containing a glycidyl group), epoxy polyester, or epoxy is preferable because of its high corrosion resistance. Next, a printing layer 23 is formed on the primer layer 22. The printing layer 23 can be formed by, for example, a film laminating method, a transfer film being formed by hydraulic transfer, a pneumatic transfer, a vacuum transfer, a thermal transfer, or the like.
The printing layer 2 is directly formed on the primer layer 22 by thermal transfer printing, inkjet printing, electrostatic printing, or hydraulic transfer printing.
It is also possible to form 3. According to the studies by the inventors, it has been confirmed that hydraulic transfer is desirable from the viewpoint of quality, regardless of printing by a film or direct printing.

Next, a top coat layer 24 of, for example, acrylic or fluorine is formed on the print layer 23 in order to obtain high weather resistance. This top coat layer 24 is desirably a clear coating in order to shine the high design of the print layer 23. By forming the surface film as described above, high quality aluminum wheels of various variations can be realized with high quality.

In the second embodiment of the present invention, as shown in FIGS. 3 and 4, a metal wheel body 10 is made of steel, and a design surface 15 is made of a steel wheel front surface 13. The wheel main body 10 is formed by welding a disc 11 and a rim 12 formed into a predetermined shape, and a design surface 15 is formed on the front surface of a steel wheel (the surface of a rolled steel plate) after the welding.

The surface of the steel wheel body 10 is first subjected to a degreasing treatment as a pre-treatment step in order to improve corrosion resistance and paint adhesion, and then to a chemical conversion treatment (non-chromate or chromate) to form a chemical conversion coating. The layer 21 is formed. Next, the primer layer 22 is formed by electrodeposition coating or electrodeposition coating + powder coating. By performing powder coating, unevenness on the surface of the steel wheel can be smoothed and corrosion resistance can be increased. As a paint, because of high corrosion resistance, for example, polyester,
Resin paints such as acrylic (containing a glycidyl group), epoxy polyester, and epoxy are desirable. Next, a printing layer 23 is formed on the primer layer 22. The printing layer 23 can be formed by, for example, a film laminating method, a transfer film being formed by hydraulic transfer, a pneumatic transfer, a vacuum transfer, a thermal transfer, or the like. Further, it can be formed directly on the primer layer 22 by thermal transfer printing, inkjet printing, electrostatic printing, or hydraulic transfer printing. According to the studies by the inventors, it has been confirmed that hydraulic transfer is desirable from the viewpoint of quality, regardless of printing by a film or direct printing.

Next, a top coat layer 24 of, for example, acrylic or fluorine is formed on the print layer 23 in order to obtain high weather resistance. This top coat layer 24 is desirably a clear coating in order to shine the high design of the print layer 23. By forming the surface film as described above, it is possible to realize high quality steel wheels of various variations with high quality.

As described above, in both the first embodiment and the second embodiment, the primer layer 22 is formed on the surface of the wheel base material, and the printing film 23 is formed thereon.
3 can be formed with good quality, so that an automobile wheel that is superior in design can be realized.

[0016]

According to the high-design wheel of the first aspect, since the printing layer is formed on the primer layer, a high-design wheel can be realized. According to the high-design wheel of claim 2, since the chemical conversion coating layer is formed between the design surface and the primer layer, a high-design wheel having excellent corrosion resistance and paint adhesion can be realized. According to the high-design wheel of claim 3, since the top coat layer uses a paint made of one kind of resin selected from acrylic resin, urethane resin and fluorine resin, a high-design wheel with excellent corrosion resistance can be realized. According to the high design wheel of claim 4, since the printing layer is printed by hydraulic transfer, a high quality high design wheel can be realized. According to the high-design wheel of claim 5, since the metal wheel body is an aluminum wheel, a high-design aluminum wheel can be realized. In the high-design wheel of claim 6, since the primer layer uses a resin paint, an aluminum wheel having corrosion resistance can be realized. According to the high-design wheel of claim 7, a steel wheel having corrosion resistance can be realized. According to the high-design wheel of claim 8, since the primer layer is a resin paint, a steel wheel having corrosion resistance can be realized.

[Brief description of the drawings]

FIG. 1 is a sectional view of a high-design wheel according to a first embodiment of the present invention.

FIG. 2 is a partially enlarged sectional view of the high-design wheel of FIG.

FIG. 3 is a sectional view of a high-design wheel according to a second embodiment of the present invention.

FIG. 4 is a partially enlarged sectional view of the high-design wheel of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 High-design wheel 10 Wheel body 13 Front 14 Decorative window 15 Design surface 21 Chemical conversion coating layer 22 Primer layer 23 Printing layer 24 Top coat layer

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tamio Yayanagi 5-9, Yobancho, Chiyoda-ku, Tokyo Topy Engineering Co., Ltd. (72) Inventor Takayuki Sato 5-9, Yobancho, Chiyoda-ku, Tokyo 9 Topyko 4K044 AA06 AB06 BA21 BB02 BB10 BB15 BC04 BC09 CA04 CA16

Claims (8)

[Claims] 1. A metal wheel main body having a design surface, a primer layer, a printing layer,
A high-design wheel with a top coat layer formed in order. 2. Between the design surface and the primer layer,
The high-design wheel according to claim 1, wherein a chemical conversion coating layer is formed. 3. The high-design wheel according to claim 1, wherein the top coat layer is made of one kind of resin selected from an acrylic resin, a urethane resin, and a fluororesin. 4. The high-design wheel according to claim 3, wherein the printing layer is printed by hydraulic transfer. 5. The high-design wheel according to claim 3, wherein the metal wheel main body is an aluminum wheel. 6. The high-design wheel according to claim 5, wherein the primer layer is a resin paint. 7. The high-design wheel according to claim 3, wherein the metal wheel body is a steel wheel. 8. The high-design wheel according to claim 7, wherein the primer layer is a resin paint.