JP2020128108A - Vehicular wheel and method for decorating the same - Google Patents
Vehicular wheel and method for decorating the same Download PDFInfo
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Abstract
Description
本発明は、意匠性に優れた車両用ホイール及びその加飾方法に関する。 The present invention relates to a vehicle wheel having an excellent design property and a decorating method thereof.
アルミニウム合金製の車両用ホイールとして、母材金属の金属光沢を利用して、意匠面における意匠性を向上するように構成した、車両用ホイールが種々提案されている。 As a vehicle wheel made of an aluminum alloy, various vehicle wheels have been proposed which are configured to improve the design on the design surface by utilizing the metallic luster of the base metal.
例えば、車両ホイールの３次元形状の意匠面に、連続する複数の細凹溝を、同一方向に延びて平行且つ等間隔に設け、これら複数の細凹溝により光輝面を形成してなる車両用ホイールが記載されている（例えば、特許文献１参照。）。 For example, for a vehicle in which a plurality of continuous fine grooves extending in the same direction are provided in parallel and at equal intervals on a three-dimensional design surface of a vehicle wheel, and a bright surface is formed by the plurality of fine grooves. A wheel is described (for example, refer to Patent Document 1).
特許文献１記載の発明では、切削加工により３次元形状の意匠面に対して連続する複数の細凹溝を形成している関係上、加工設備の設備コストが高く、しかも加工に長時間を要することから、車両用ホイールの加工コストが大変高くなるという問題がある。また、光輝面が輝いて見えるとは記載されているものの、単に光り輝いているだけの変化の少ない光輝面となり、躍動感が少なく、意匠性に劣るものとなり、しかもホイール毎に意匠の異なるものではないので、量産性には優れているものの、工芸的な単品物の価値を有するものではなかった。 In the invention described in Patent Document 1, since a plurality of continuous fine grooves are formed on the design surface having a three-dimensional shape by cutting, the equipment cost of the processing equipment is high, and the processing requires a long time. Therefore, there is a problem that the processing cost of the vehicle wheel becomes very high. In addition, although it is described that the bright surface looks bright, it becomes a bright surface with little change of merely shining, it has less dynamic feeling, it is inferior in designability, and the design is different for each wheel Therefore, although it is excellent in mass productivity, it was not worth the value of a single craft item.
本発明の目的は、意匠性に優れた躍動感のある意匠面を実現でき、しかも加工のための設備コストが安く、短時間で加工でき、車両用ホイールの製作コストを安く抑え得る車両用ホイール及びその加飾方法を提供することである。 An object of the present invention is to provide a vibrant design surface with excellent designability, which has a low equipment cost for processing, can be processed in a short time, and can reduce the manufacturing cost of a vehicle wheel at a low cost. And a method of decorating the same.
本発明は、以下の発明を包含する。
（１）軽金属製のホイール本体を備えた車両用ホイールであって、前記ホイール本体の意匠面における金属母材の表面に、細長い帯状の複数本の研磨ラインを含む研磨模様を設け、前記研磨模様を覆うようにクリア塗膜層を設けた、ことを特徴とする車両用ホイール。なお、本明細書において、車両用ホイールの意匠面とは、車両に対して車両用ホイールを組付けた状態で、車両の側方より目視可能な車両用ホイールの表面のことであり、ディスク面、模様孔の内周面、リム部の内周面などを意味する。また、本明細書において、クリア塗膜層とは、金属母材の表面を目視可能な塗膜層を意味し、透明クリア、カラークリア、あるいは半透明の塗料を用いて形成した塗膜層を意味する。
The present invention includes the following inventions.
(1) A vehicle wheel including a wheel body made of a light metal, wherein a polishing pattern including a plurality of elongated strip-shaped polishing lines is provided on a surface of a metal base material on a design surface of the wheel body, and the polishing pattern is provided. A vehicle wheel characterized in that a clear coating layer is provided so as to cover the wheel. In the present specification, the design surface of the vehicle wheel refers to the surface of the vehicle wheel that is visible from the side of the vehicle when the vehicle wheel is assembled to the vehicle, and the disk surface. , The inner peripheral surface of the patterned hole, the inner peripheral surface of the rim portion, and the like. Further, in the present specification, the clear coating layer means a coating layer in which the surface of the metal base material is visible, and a coating layer formed using a transparent clear, color clear or translucent coating material. means.
（２）前記ホイール本体のディスク部のディスク面に前記研磨模様を設けた前記（１）記載の車両用ホイール。 (2) The vehicle wheel according to (1), wherein the polishing pattern is provided on the disc surface of the disc portion of the wheel body.
（３）前記ホイール本体のリム部の内周面に前記研磨模様を設けた前記（１）又は（２）記載の車両用ホイール。 (3) The vehicle wheel according to (1) or (2), wherein the polishing pattern is provided on the inner peripheral surface of the rim portion of the wheel body.
（４）前記ホイールのディスク部に模様孔を設け、前記模様孔の内周面に前記研磨模様を設けた前記（１）〜（３）のいずれかに記載の車両用ホイール。 (4) The vehicle wheel according to any one of (1) to (3), wherein a patterned hole is provided in the disc portion of the wheel, and the polishing pattern is provided on the inner peripheral surface of the patterned hole.
（５）前記ホイール本体に、前記研磨模様の外縁に沿って角部を設けた前記（１）〜（４）のいずれかに記載の車両用ホイール。 (5) The vehicle wheel according to any one of (1) to (4), wherein the wheel body is provided with a corner portion along an outer edge of the polishing pattern.
（６）前記研磨ラインが波形状又は湾曲状に形成されている前記（１）〜（５）のいずれかに記載の車両用ホイール。 (6) The vehicle wheel according to any one of (1) to (5), wherein the polishing line is formed in a wavy shape or a curved shape.
（７）前記複数の研磨ラインは、その一部が相互に重なるように形成されている前記（１）〜（６）のいずれかに記載の車両用ホイール。 (7) The vehicle wheel according to any one of (1) to (6), wherein the plurality of polishing lines are formed so that the parts thereof overlap each other.
（８）軽金属製のホイール本体を備えた車両用ホイールの加飾方法であって、前記ホイール本体の意匠面における金属母材の表面に、研磨工具を用いて細長い帯状の複数本の研磨ラインを含む研磨模様を形成する工程と、前記研磨模様を覆うようにホイール本体の意匠面にクリア塗装を施す工程と、を備えたことを特徴とする車両用ホイールの加飾方法。なお、本明細書において、クリア塗装とは、金属母材の表面を目視可能な塗料、例えば透明クリア、カラークリア、あるいは半透明の塗料を用いた塗装を意味する。 (8) A method for decorating a vehicle wheel including a wheel body made of a light metal, wherein a plurality of elongated strip-shaped polishing lines are formed on a surface of a metal base material on a design surface of the wheel body using a polishing tool. A method of decorating a vehicle wheel, comprising: a step of forming a polishing pattern including the polishing pattern; and a step of applying a clear coating to the design surface of the wheel body so as to cover the polishing pattern. In the present specification, clear coating means coating using a paint that allows the surface of the metal base material to be visible, for example, clear clear, color clear, or translucent paint.
（９）前記研磨模様を形成する前に、前記金属母材の表面に対して鏡面加工を施す工程を設けた前記（８）記載の車両用ホイールの加飾方法。 (9) The method for decorating a vehicle wheel according to (8), further including a step of subjecting the surface of the metal base material to a mirror finish before forming the polishing pattern.
（１０）人手により前記研磨工具を操作して前記研磨模様を形成する前記（８）又は（９）記載の車両用ホイールの加飾方法。 (10) The method for decorating a vehicle wheel according to (8) or (9), wherein the polishing tool is manually operated to form the polishing pattern.
本発明に係る車両用ホイール及びその加飾方法によれば、研磨ラインの各部における反射光の明暗が、見る方向によって変化し、しかも研磨ライン毎に明暗のパターンが異なるので、意匠性に優れた躍動感のある意匠面を有する車両用ホイールを実現でき、しかも研磨模様の加工のための設備コストが安く、短時間で加工でき、車両用ホイールの製作コストを安く抑えることが可能となる。また、人手により研磨模様を加工すると、任意の方向へ向けて研磨ラインを形成でき、変化に富んだ、より一層躍動感のある、工芸的な価値のある意匠面を有する、単品物の車両用ホイールを実現できる。 According to the vehicle wheel and its decorating method according to the present invention, the brightness of the reflected light at each part of the polishing line changes depending on the viewing direction, and the pattern of the brightness is different for each polishing line, so that the design is excellent. A vehicle wheel having a dynamic design surface can be realized, the equipment cost for processing a polishing pattern is low, the processing can be performed in a short time, and the manufacturing cost of the vehicle wheel can be kept low. In addition, if the polishing pattern is manually processed, the polishing line can be formed in any direction, and it has a variety of changes, a more dynamic feeling, and a design surface with a craft value Wheel can be realized.
以下、本発明の実施の形態について図面を参照しながら説明する。
図１〜図３に示すように、車両用ホイール１は、円筒状のリム部２と、リム部２の内側に配置したディスク部３とを有する軽金属製のホイール本体４を備えた自動車用の２ピースホイールで構成され、ディスク部３の外周端部は、リム部２の内周面のリム幅方向の途中部に溶接固定されている。ホイール本体４には、バルブ５が組み付けられるとともに、必要に応じて装飾用のピアスボルト６などが組み付けられている。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 3, a vehicle wheel 1 for an automobile is provided with a wheel body 4 made of a light metal, which has a cylindrical rim portion 2 and a disc portion 3 arranged inside the rim portion 2. It is composed of a two-piece wheel, and the outer peripheral end portion of the disk portion 3 is welded and fixed to an intermediate portion of the inner peripheral surface of the rim portion 2 in the rim width direction. A valve 5 is attached to the wheel body 4, and a decorative pierce bolt 6 and the like are attached as necessary.
リム部２は、アルミニウム合金やマグネシウム合金などの軽量で且つ延伸性に優れた軽金属材料で略円筒状に構成され、車両用タイヤを外装可能な周知のリム形状に形成されている。 The rim portion 2 is made of a light metal material such as an aluminum alloy or a magnesium alloy, which is lightweight and has excellent extensibility, and is formed into a substantially cylindrical shape.
ディスク部３は、アルミニウム合金やマグネシウム合金等の軽金属材料を用いて、鋳造やプレス成形や鍛造等により一体成形したもので、リム部２に内嵌されるリング部３ａと、車軸に固定されるハブ部３ｂと、ハブ部３ｂとリング部３ａとを連結するディスク本体３ｃとを備えている。 The disc portion 3 is made of a light metal material such as an aluminum alloy or a magnesium alloy and is integrally formed by casting, press molding, forging, or the like, and is fixed to the ring portion 3a fitted in the rim portion 2 and the axle. It includes a hub portion 3b and a disk body 3c that connects the hub portion 3b and the ring portion 3a.
ハブ部３ｂの中央部には車軸の端部が装着されるハブ孔７が形成され、ハブ部３ｂには車軸に設けた固定ボルトが挿通する５つの取付孔８が形成されている。ただし、取付孔８は、車軸に設けられる固定ボルトの本数及び配設位置に対応させて設けることになる。 A hub hole 7 into which the end of the axle is mounted is formed in the center of the hub portion 3b, and five mounting holes 8 into which fixing bolts provided on the axle are inserted are formed in the hub portion 3b. However, the mounting holes 8 are provided in correspondence with the number and arrangement position of the fixing bolts provided on the axle.
ディスク部３には、ディスク本体３ｃの外周縁からハブ部３ｂまで略半径方向に延びる長円形状の第１模様孔１０と、ディスク本体３ｃの外周縁からディスク本体３ｃの半径方向の途中部まで延びる、第１模様孔１０の側方に併設した、第１模様孔１０よりも小型の三角形状の第２模様孔１１とを１組とする模様孔が、周方向に一定間隔おきに５組形成されている。ディスク本体３ｃの意匠面側には第１模様孔１０の外縁に沿って略Ｕ字状のＵ溝１２が形成され、車両用ホイール１の意匠性が高められている。ただし、本発明は、模様孔の形状、個数、開口面積などの異なるディスク部を備えた車両用ホイールに対しても適用できる。 The disk portion 3 has an elliptical first pattern hole 10 extending substantially radially from the outer peripheral edge of the disk body 3c to the hub portion 3b, and an outer peripheral edge of the disk body 3c to a middle portion in the radial direction of the disk body 3c. Five pattern holes, which extend sideways of the first pattern hole 10 and are arranged side by side with the second pattern hole 11 which is smaller than the first pattern hole 10 and has a triangular shape, are provided at regular intervals in the circumferential direction. Has been formed. A substantially U-shaped U groove 12 is formed along the outer edge of the first pattern hole 10 on the design surface side of the disk body 3c, so that the designability of the vehicle wheel 1 is enhanced. However, the present invention can be applied to a vehicle wheel provided with disk portions having different shapes, numbers, and opening areas of patterned holes.
図１〜図３に示すように、ディスク部３のうちの第１模様孔１０及び第２模様孔１１を除く意匠面側には、車両用ホイール１の意匠面の一部を構成する、滑らかな３次元の曲面状のディスク面３ｄが形成され、ディスク面３ｄのうちの図１〜図３に網点で図示の領域には、例えば図８Ａ、図８Ｂ、図９Ａ、図９Ｂ、図１０Ａ、図１０Ｂに示すような研磨模様が形成されるとともに、研磨模様を覆うようにクリア塗装が施されてクリア塗膜層（図示略）が形成されている。なお、図１〜図３に示す車両用ホイール１では、ディスク面３ｄの全面に研磨模様を形成したが、ディスク面３ｄの一部に研磨模様を形成することも可能である。 As shown in FIGS. 1 to 3, on the design surface side of the disk portion 3 excluding the first pattern hole 10 and the second pattern hole 11, a part of the design surface of the vehicle wheel 1 is smoothed. 3D curved disk surface 3d is formed, and in the area of the disk surface 3d shown by halftone dots in FIGS. 1 to 3, for example, FIGS. 8A, 8B, 9A, 9B, and 10A. 10B, a polishing pattern as shown in FIG. 10B is formed, and clear coating is applied to cover the polishing pattern to form a clear coating layer (not shown). In the vehicle wheel 1 shown in FIGS. 1 to 3, the polishing pattern is formed on the entire disk surface 3d, but it is also possible to form the polishing pattern on a part of the disk surface 3d.
研磨模様は、図４Ａ、図４Ｂに示すように、シングル回転サンダー、ダブルアクションサンダーなどの周知の構成のエア駆動の研磨工具２０を、人手により操作して、ディスク部３を構成する金属母材の表面に対して形成した、細長い帯状の複数本の研磨ライン１３（図４Ａに網点で図示）で構成されている。ただし、人手による研磨工具２０の操作を、多関節ロボットに学習させて、多関節ロボットにより研磨工具２０を操作するように構成することも可能である。 As shown in FIGS. 4A and 4B, the polishing pattern is obtained by manually operating an air-driven polishing tool 20 having a well-known configuration, such as a single rotary sander or a double action sander, to form a metal base material that forms the disk unit 3. It is composed of a plurality of elongated strip-shaped polishing lines 13 (illustrated by halftone dots in FIG. 4A) formed on the surface of. However, it is also possible to make the articulated robot learn the operation of the polishing tool 20 by hand and operate the polishing tool 20 by the articulated robot.
ここで、研磨模様を形成するための研磨処理について簡単に説明すると、例えば図４Ａ、図４Ｂに示すように、先ず、円板状のサンドペーパ２１をパッド部材２２の底面に取付け、このパッド部材２２を研磨工具２０のチャック２０ａに固定して、研磨工具２０によりパッド部材２２を回転させながら、研磨模様を形成する加工面としてのディスク面３ｄに対して、角度θ１を付けてサンドペーパ２１をディスク面３ｄに押し当て、ディスク部３の中央部から外周縁に向けて、パッド部材２２を蛇行させながら、図４Ａに一点鎖線で示す中心線Ｌ１にそって移動させて、研磨ライン１３を形成する。そして、この研磨ライン１３の形成作業を、研磨ライン１３の一部が相互に重なるように、ディスク部３の周方向に対して角度を変えて順次行うことで、複数の研磨ライン１３からなる研磨模様を形成することになる。 Here, the polishing process for forming the polishing pattern will be briefly described. For example, as shown in FIGS. 4A and 4B, first, the disk-shaped sand paper 21 is attached to the bottom surface of the pad member 22, and the pad member 22 is attached. Is fixed to the chuck 20a of the polishing tool 20, and while the pad member 22 is rotated by the polishing tool 20, an angle θ1 is added to the disk surface 3d as a processing surface for forming a polishing pattern, and the sand paper 21 is moved to the disk surface. 3d, the pad member 22 is moved along the center line L1 shown by the one-dot chain line in FIG. 4A while meandering the pad member 22 from the central portion of the disk portion 3 toward the outer peripheral edge, to form the polishing line 13. Then, the polishing line 13 is formed sequentially by changing the angle with respect to the circumferential direction of the disk portion 3 so that the polishing lines 13 partially overlap with each other. A pattern will be formed.
研磨ライン１３は、サンドペーパ２１に付着させた研磨粒子により、ディスク部３の母材金属の表面に形成された微細な条溝及び突条の集合体で構成され、見る角度によって、明るい部分と暗い部分とが変化して、躍動感のある意匠面が得られるように構成されている。サンドペーパ２１としては、任意の直径及び粒度のものを採用できるが、例えば直径が５０ｍｍ〜１２５ｍｍで、粒度が＃２５０〜＃６００のものを好適に採用できる。 The polishing line 13 is composed of an assembly of fine grooves and protrusions formed on the surface of the base metal of the disk portion 3 by the abrasive particles attached to the sand paper 21, and depending on the viewing angle, a bright portion and a dark portion. The parts are changed so that a dynamic design surface can be obtained. As the sand paper 21, those having an arbitrary diameter and particle size can be adopted, but for example, those having a diameter of 50 mm to 125 mm and a particle size of #250 to #600 can be preferably adopted.
研磨ライン１３の幅は、ディスク面３ｄとサンドペーパ２１とのなす角度θ１を調整したり、ディスク面３ｄに対するサンドペーパ２１の押し付け力を調整したり、サンドペーパ２１の直径を変更したりすることで、所望の幅に調整できる。研磨ライン１３の幅は、研磨ライン１３の全長にわたって略一様な幅に構成することもできるし、研磨ライン１３の長さ方向の途中部で変化するように構成することもできる。角度θ１は、任意の角度に設定できるが、例えば１０°〜５０°、好ましくは３０°〜４５°に設定できる。 The width of the polishing line 13 is desired by adjusting the angle θ1 formed by the disk surface 3d and the sand paper 21, adjusting the pressing force of the sand paper 21 against the disk surface 3d, or changing the diameter of the sand paper 21. Can be adjusted to the width of. The width of the polishing line 13 can be configured to be substantially uniform over the entire length of the polishing line 13, or can be configured to change in the middle of the polishing line 13 in the length direction. The angle θ1 can be set to any angle, for example, 10° to 50°, preferably 30° to 45°.
図８Ａ、図８Ｂ、図９Ａ、図９Ｂ、図１０Ａ、図１０Ｂに示す研磨模様は、「炎」をイメージして形成したものである。具体的には、シングル回転サンダーからなる研磨工具２０により、細長い帯状で且つ波形状の複数本の研磨ライン１３を、ハブ部３ｂからディスク部３の外周縁にわたって略放射状に形成したものであり、隣接する研磨ライン１３の周方向の間隔、研磨ライン１３の角度、研磨ライン１３の振幅及び波長などを変化させることで、複数本の研磨ライン１３をディスク面３ｄに略隙間なく重ねて形成したものである。 The polishing patterns shown in FIGS. 8A, 8B, 9A, 9B, 10A, and 10B are formed in the image of “flame”. Specifically, a plurality of elongated strip-shaped and wave-shaped polishing lines 13 are formed substantially radially from the hub portion 3b to the outer peripheral edge of the disk portion 3 by a polishing tool 20 formed of a single rotating sander. A plurality of polishing lines 13 are formed on the disk surface 3d with almost no gap by changing the circumferential spacing between the adjacent polishing lines 13, the angle of the polishing lines 13, the amplitude and wavelength of the polishing lines 13, etc. Is.
ただし、研磨模様としては、細長い所望の幅の帯状の複数の研磨ライン１３を所望の形状に形成したものであれば、任意のデザインの研磨模様を設けることができる。例えば、図５Ａに示すように、ハブ部３ｂから放射状で且つ略直線状に延びる、一点鎖線で図示の中心線Ｌ２に沿って、複数本の研磨ライン１３を形成することもできるし、図５Ｂに示すように、ハブ部３ｂから放射状で且つ半径方向に対して一方向に角度を付けて湾曲状に延びる、一点鎖線で図示の中心線Ｌ３に沿って、複数本の研磨ライン１３を形成することもできるし、図５Ｃに示すように、ハブ部３ｂを中心とした略同心円状で且つ波形状に延びる、一点鎖線で図示の中心線Ｌ４に沿って、複数本の研磨ライン１３を形成することもできる。 However, as the polishing pattern, as long as a plurality of elongated strip-shaped polishing lines 13 having a desired width are formed in a desired shape, a polishing pattern of any design can be provided. For example, as shown in FIG. 5A, it is also possible to form a plurality of polishing lines 13 along a center line L2 shown by a dashed-dotted line that extends radially and substantially linearly from the hub portion 3b, and FIG. As shown in FIG. 3, a plurality of polishing lines 13 are formed along the center line L3, which is a dashed-dotted line and extends radially from the hub portion 3b and is curved at an angle to the radial direction in one direction. Alternatively, as shown in FIG. 5C, a plurality of polishing lines 13 are formed along a center line L4, which is a dashed-dotted line and extends substantially in a concentric shape around the hub portion 3b and has a wavy shape. You can also
研磨模様は、ディスク面３ｄと、リム部２の内周面２ａと、第１模様孔１０の内周面１０ａと、第２模様孔１１の内周面１１ａの中から選択した１種又は２種以上の一部又は全部の領域に形成することもできる。例えば、図６に網点で示すように、ディスク部３よりも意匠面側におけるリム部２の内周面２ａと、模様孔１０、１１の内周面１０ａ、１１ａの全面に設けることもできる。 The polishing pattern is one or two selected from the disk surface 3d, the inner peripheral surface 2a of the rim portion 2, the inner peripheral surface 10a of the first pattern hole 10, and the inner peripheral surface 11a of the second pattern hole 11. It can also be formed in a part or the whole of one or more regions. For example, as shown by halftone dots in FIG. 6, the inner peripheral surface 2a of the rim portion 2 and the inner peripheral surfaces 10a, 11a of the pattern holes 10, 11 on the design surface side with respect to the disk portion 3 may be provided all over. ..
リム部２の内周面２ａに対して研磨模様を形成する場合には、基本的にはディスク面３ｄに研磨模様を形成する場合と同様に、研磨工具２０によりパッド部材２２を回転させながら、リム部２の内周面２ａにサンドペーパ２１を押し当てて、リム幅方向にパッド部材２２を蛇行させながら移動させることで、リム部２の内周面２ａに研磨ライン１３を形成し、この研磨ライン１３の形成作業を、研磨ラインの一部が相互に重なるように、リム部２の周方向に対して間隔をあけて順次行うことで、複数の研磨ラインからなる研磨模様を形成することになる。なお、リム部２の内周面２ａに研磨模様を設ける代わりに、リム部２の内周面２ａを鏡面に加工して、ディスク部３の研磨模様がリム部２の内周面２ａに映り込むように構成して、意匠性を高めることも好ましい。 When forming a polishing pattern on the inner peripheral surface 2a of the rim portion 2, basically, as in the case of forming a polishing pattern on the disk surface 3d, while rotating the pad member 22 by the polishing tool 20, By pressing the sandpaper 21 against the inner peripheral surface 2a of the rim portion 2 and moving the pad member 22 while meandering in the rim width direction, the polishing line 13 is formed on the inner peripheral surface 2a of the rim portion 2, and this polishing is performed. Forming a polishing pattern composed of a plurality of polishing lines by sequentially performing the forming operation of the lines 13 at intervals in the circumferential direction of the rim portion 2 so that the polishing lines partially overlap each other. Become. Instead of providing a polishing pattern on the inner peripheral surface 2a of the rim portion 2, the inner peripheral surface 2a of the rim portion 2 is processed into a mirror surface so that the polishing pattern of the disk portion 3 is reflected on the inner peripheral surface 2a of the rim portion 2. It is also preferable that the structure is configured to be embedded to enhance the design.
また、模様孔１０、１１の内周面１０ａ、１１ａに対して研磨模様を形成する場合には、例えば図７に示すように、円錐台状の軸付きドラム２５に円錐台筒状のサンドペーパ２６を外嵌状に取付けたペンシル型の研磨工具２７を用い、研磨工具２７で軸付きドラム２５を回転させながら、研磨模様を形成する加工面としての模様孔１０の内周面１０ａに対して、角度θ２を付けてサンドペーパ２６の端部を押し当てながら、サンドペーパ２６を模様孔１０の内周面１０ａに沿って移動させることで、研磨ラインを形成し、これを複数回繰り返すことで複数の研磨ラインからなる研磨模様を形成することになる。角度θ２は、研磨工具２７がディスク部３に接触しない範囲、例えば１０°〜５０°、好ましくは１０°〜３０°に設定できる。サンドペーパ２６の粒度は、サンドペーパ２１と同様に、任意の粒度のものを採用でき、例えば＃２５０〜＃６００のものを好適に採用できる。 Further, when a polishing pattern is formed on the inner peripheral surfaces 10a and 11a of the pattern holes 10 and 11, for example, as shown in FIG. 7, a truncated cone-shaped drum 25 and a truncated cone-shaped sandpaper 26 are provided. Using a pencil type polishing tool 27 attached to the outer periphery of the pattern, while rotating the drum 25 with a shaft by the polishing tool 27, with respect to the inner peripheral surface 10a of the pattern hole 10 as a processing surface for forming a polishing pattern, The sandpaper 26 is moved along the inner peripheral surface 10a of the pattern hole 10 while pressing the end portion of the sandpaper 26 at an angle θ2 to form a polishing line, and this is repeated a plurality of times to perform a plurality of polishing operations. A polishing pattern consisting of lines will be formed. The angle θ2 can be set in a range in which the polishing tool 27 does not contact the disk portion 3, for example, 10° to 50°, preferably 10° to 30°. Similar to the sand paper 21, the sand paper 26 can have any particle size, and for example, those of #250 to #600 can be preferably adopted.
この車両用ホイール１では、研磨ライン１３の各部における反射光の明暗が、見る方向によって変化し、しかも研磨ライン１３毎に明暗のパターンが異なるので、意匠性に優れた躍動感のある意匠面を有する車両用ホイール１を実現できる。しかも、研磨工具２０により研磨模様の加工のための設備コストが安く、短時間で加工でき、車両用ホイール１の製作コストを安く抑えることが可能となる。また、人手により研磨模様を加工するので、任意の方向へ向けて研磨ライン１３を形成でき、変化に富んだ、より一層躍動感のある、工芸的な価値のある意匠面を有する、単品物の車両用ホイール１を実現できる。 In this vehicle wheel 1, since the brightness of the reflected light at each part of the polishing line 13 changes depending on the viewing direction, and the pattern of light and dark is different for each polishing line 13, a dynamic design surface excellent in design is provided. The vehicle wheel 1 that the vehicle has can be realized. Moreover, the equipment cost for processing the polishing pattern by the polishing tool 20 is low, the processing can be performed in a short time, and the manufacturing cost of the vehicle wheel 1 can be reduced. In addition, since the polishing pattern is manually processed, the polishing line 13 can be formed in any direction, and it has a variety of changes, a more dynamic feeling, and a design surface with a craft value, which is a single item. The vehicle wheel 1 can be realized.
また、ディスク面３ｄだけでなく、リム部２の内周面２ａと、第１模様孔１０の内周面１０ａと、第２模様孔１１の内周面１１ａの中から選択した１種又は２種以上の一部又は全部の領域に研磨模様を形成すると、より一層変化に富んだ意匠面を実現できる。 In addition to the disc surface 3d, one or two selected from the inner peripheral surface 2a of the rim portion 2, the inner peripheral surface 10a of the first pattern hole 10 and the inner peripheral surface 11a of the second pattern hole 11 are selected. By forming a polishing pattern in some or all of the areas of at least one kind, it is possible to realize a more varied design surface.
研磨ライン１３を波形状又は湾曲状に形成すると、より一層多彩な明暗の変化を研磨ライン１３に付与することができる。 When the polishing line 13 is formed in a wavy shape or a curved shape, it is possible to give a more various bright and dark change to the polishing line 13.
複数の研磨ライン１３は、相互に重複しないように形成することもできるが、その一部が相互に重なるように形成すると、密度の高い研磨模様を形成することができる。 The plurality of polishing lines 13 can be formed so as not to overlap with each other, but if they are formed so as to partially overlap with each other, a polishing pattern having a high density can be formed.
（車両用ホイールの製造方法）
次に、車両用ホイール１の製造方法について説明しながら、研磨模様による加飾方法について説明する。
(Vehicle wheel manufacturing method)
Next, a method of decorating with a polishing pattern will be described while explaining a method of manufacturing the vehicle wheel 1.
先ず、周知の方法により、アルミニウム合金などの軽金属材料を用いて鋳造によりディスク部３を製作し、必要な熱処理を施した後、機械加工によりハブ孔７、取付孔８などを形成するとともに、旋盤によりディスク面３ｄを滑らかな面に切削加工する。 First, according to a well-known method, the disk portion 3 is manufactured by casting using a light metal material such as an aluminum alloy, and after the necessary heat treatment, the hub hole 7, the mounting hole 8 and the like are formed by machining, and the lathe is also used. Thus, the disk surface 3d is cut into a smooth surface.
次に、機械加工を施したディスク面３ｄに対して後述の加飾処理を施した後、ディスク部３を洗浄し、乾燥した後、研磨模様を覆うように、ディスク部３の少なくともの意匠面に対して透明クリア又はカラークリアを塗装する。 Next, after subjecting the machined disc surface 3d to a decoration treatment described later, the disc portion 3 is washed and dried, and at least the design surface of the disc portion 3 is covered so as to cover the polishing pattern. Apply clear clear or color clear to.
一方、アルミニウム合金などの軽金属製の帯板を丸めて端部を溶接し、スピニング加工により所望の形状のリム部２を製作する。ただし、リム部２の製造方法としては、円板状の金属板を有底円筒状の一次成形品に絞り加工して、一次成形品の胴部分のみを残して両端を切除し、胴部分をスピニング加工して製作するなど、周知の製造方法にて製作することもできる。 On the other hand, a strip plate made of a light metal such as an aluminum alloy is rolled, the ends are welded, and a rim portion 2 having a desired shape is manufactured by spinning. However, as a method of manufacturing the rim portion 2, a disk-shaped metal plate is drawn into a cylindrical primary molded product with a bottom, both ends are cut off leaving only the body part of the primary molded product, and the body part is removed. It can also be manufactured by a known manufacturing method such as spinning.
次に、リム部２の内周面２ａのリブ幅方向の途中部の適正位置にディスク部３を内嵌させて、リム部２に対してディスク部３を溶着し、車両用ホイール１を得ることになる。 Next, the disc portion 3 is fitted into the inner peripheral surface 2a of the rim portion 2 at an appropriate position in the middle of the rib width direction, and the disc portion 3 is welded to the rim portion 2 to obtain the vehicle wheel 1. It will be.
（第１の加飾処理）
図８Ａ、図８Ｂに示すように、ディスク部３に研磨模様を形成し、ディスク面３ｄ以外に有色の塗装を施す場合の加飾処理について説明すると、先ず、前述のように機械加工を施したディスク部３の意匠面に対して、例えば黒色のカラー塗装を施す。
(First decoration processing)
As shown in FIG. 8A and FIG. 8B, the decorative processing in the case of forming a polishing pattern on the disk portion 3 and applying colored coating on the surface other than the disk surface 3d will be described. First, the mechanical processing was performed as described above. For example, a black color coating is applied to the design surface of the disc portion 3.
次に、ディスク部３を乾燥させた後、ディスク面３ｄの塗膜をグラインダーで剥離する。このとき、図１に示すように、ディスク部３における、ディスク部３の意匠面側の外縁部と、第２模様孔１１の意匠面側の外縁部と、Ｕ溝１２の意匠面側の外縁部には、角部３ｅ、１１ｂ、１２ａがそれぞれ形成されているので、角部３ｅ、１１ｂ、１２ａを利用してディスク面３ｄの外縁部における、塗膜の剥離部分の境界を綺麗な線状に形成することができる。 Next, after the disk portion 3 is dried, the coating film on the disk surface 3d is peeled off with a grinder. At this time, as shown in FIG. 1, the outer edge of the disk portion 3 on the design surface side of the disk portion 3, the outer edge portion of the second pattern hole 11 on the design surface side, and the outer edge of the U groove 12 on the design surface side. Since the corners 3e, 11b, 12a are formed in the respective portions, the boundary of the peeled portion of the coating film on the outer edge of the disk surface 3d can be formed into a clean linear shape by utilizing the corners 3e, 11b, 12a. Can be formed.
次に、前述した研磨処理のように、図４Ａ、図４Ｂに示すように、研磨工具２０によりパッド部材２２を回転させながら、研磨工具２０を手で操作して、ディスク面３ｄに対して角度θ１を付けてサンドペーパ２１をディスク面３ｄに押し当てて、ディスク部３の中央部から外周縁に向けて、パッド部材２２を蛇行させながら移動させ、研磨ライン１３を形成する。そして、この研磨ライン１３の形成作業を、研磨ライン１３の一部が相互に重なるように、ディスク部３の周方向に対して角度を変えて順次行うことで、複数の研磨ライン１３からなる研磨模様を形成することになる。 Next, as in the polishing process described above, as shown in FIGS. 4A and 4B, while rotating the pad member 22 with the polishing tool 20, the polishing tool 20 is manually operated to form an angle with respect to the disk surface 3d. With θ1, the sandpaper 21 is pressed against the disk surface 3d, and the pad member 22 is moved in a meandering manner from the central portion of the disk portion 3 toward the outer peripheral edge to form the polishing line 13. Then, the polishing line 13 is formed sequentially by changing the angle with respect to the circumferential direction of the disk portion 3 so that the polishing lines 13 partially overlap with each other. A pattern will be formed.
なお、第１模様孔１０の内周面１０ａと第２模様孔１１の内周面１１ａの一方に加飾処理を施す場合には、加飾処理を施す模様孔の内周面の塗膜をグラインダーで剥離した後、図７に示すように、研磨工具２７で軸付きドラム２５を回転させながら、研磨工具２７を手で操作して、例えば模様孔１０の内周面１０ａに対して角度θ２を付けて、サンドペーパ２６の端部を押し当てながら、サンドペーパ２６を模様孔１０の内周面１０ａに沿って移動させることで、研磨ラインを形成し、これを複数回繰り返すことで複数の研磨ラインからなる研磨模様を形成することになる。 When the decorative treatment is applied to one of the inner peripheral surface 10a of the first pattern hole 10 and the inner peripheral surface 11a of the second pattern hole 11, the coating film on the inner peripheral surface of the pattern hole to be decorated is applied. After peeling with a grinder, as shown in FIG. 7, while rotating the drum 25 with a shaft by the polishing tool 27, the polishing tool 27 is manually operated to, for example, an angle θ2 with respect to the inner peripheral surface 10a of the pattern hole 10. The sandpaper 26 is moved along the inner peripheral surface 10a of the pattern hole 10 while pressing the end portion of the sandpaper 26 to form a polishing line, and this is repeated a plurality of times to form a plurality of polishing lines. To form a polishing pattern consisting of
（第２の加飾処理）
図９Ａ、図９Ｂに示すように、ディスク部３に研磨模様を形成し、模様孔１０、１１の内周面１０ａ、１１ａ及びＵ溝１２の内面に周方向に延びる微細な突条及び条溝からなるヘアラインを、ディスク部３の母材金属を露出させて形成する場合の加飾処理について説明すると、先ず、前述のように機械加工を施したディスク部３の意匠面に対して、例えば＃１５０〜＃２５０の粒度の砥石を取付けたグラインダーにより段階的に研磨処理を施す。
(Second decoration processing)
As shown in FIGS. 9A and 9B, fine protrusions and grooves extending in the circumferential direction are formed on the inner peripheral surfaces 10a and 11a of the pattern holes 10 and 11 and the inner surface of the U groove 12 by forming an abrasive pattern on the disk portion 3. A description will be given of the decoration processing when the base metal of the disc portion 3 is exposed by forming a hair line made of (1) on the design surface of the disc portion 3 machined as described above. A grinding process is performed stepwise by a grinder equipped with a grindstone having a grain size of 150 to #250.
次に、研磨工具２７により軸付きドラム２５を回転させながら、サンドペーパ２６の周面を模様孔１０、１１の内周面１０ａ、１１ａ及びＵ溝１２の内面に押し当てて、軸付きドラム２５を模様孔１０、１１及びＵ溝１２の内面に沿って周方向に移動させて、砥石の研磨粒子によりヘアラインを形成する。なお、ヘアラインに代えて、第１模様孔１０の内周面１０ａと第２模様孔１１の内周面１１ａの一方に加飾処理を施す場合には、研磨工具２７で軸付きドラム２５を回転させながら、模様孔１０の内周面１０ａに対して角度θ２を付けて、サンドペーパ２６の端部を押し当てながら、サンドペーパ２６を模様孔１０、１１の内周面１０ａ、１１ａに沿って移動させて研磨ラインを形成し、これを複数回繰り返すことで複数の研磨ラインからなる研磨模様を形成することになる。 Next, while rotating the drum 25 with a shaft by the polishing tool 27, the peripheral surface of the sand paper 26 is pressed against the inner peripheral surfaces 10a and 11a of the pattern holes 10 and 11 and the inner surface of the U groove 12 to rotate the drum 25 with a shaft. The hairline is formed by the abrasive particles of the grindstone by moving in the circumferential direction along the inner surfaces of the pattern holes 10 and 11 and the U groove 12. In addition, instead of the hairline, when the decoration treatment is applied to one of the inner peripheral surface 10a of the first pattern hole 10 and the inner peripheral surface 11a of the second pattern hole 11, the polishing tool 27 rotates the shaft-equipped drum 25. While making the angle θ2 with respect to the inner peripheral surface 10a of the pattern hole 10 and pressing the end portion of the sand paper 26, the sand paper 26 is moved along the inner peripheral surface 10a, 11a of the pattern hole 10, 11. To form a polishing line, and by repeating this a plurality of times, a polishing pattern composed of a plurality of polishing lines is formed.
次に、第１の加飾処理と同様に、研磨工具２０により、ディスク面３ｄに対して複数の研磨ライン１３からなる研磨模様を形成することになる。 Next, similarly to the first decorating process, the polishing tool 20 forms a polishing pattern including the plurality of polishing lines 13 on the disk surface 3d.
（第３の加飾処理）
図１０Ａ、図１０Ｂに示すように、ディスク部３に研磨模様を形成し、模様孔１０、１１の内周面１０ａ、１１ａ及びＵ溝１２の内面を鏡面加工する場合の加飾処理について説明すると、先ず、前述のように機械加工を施したディスク部３のうちの少なくとも意匠面に対して、例えば＃１５０〜＃６００の粒度の砥石を取付けたグラインダーにより段階的に研磨処理を施す。
(Third decoration processing)
As shown in FIG. 10A and FIG. 10B, a description will be given of the decoration processing in the case of forming a polishing pattern on the disk portion 3 and mirror-finishing the inner peripheral surfaces 10a and 11a of the pattern holes 10 and 11 and the inner surface of the U groove 12. First, at least the design surface of the disk portion 3 that has been machined as described above is subjected to a stepwise polishing process with a grinder equipped with a grindstone with a grain size of #150 to #600, for example.
次に、湿式バレル研磨によりディスク部３の外面全体を鏡面研磨する。 Next, the entire outer surface of the disk portion 3 is mirror-polished by wet barrel polishing.
次に、第１の加飾処理と同様に、研磨工具２０により、ディスク面３ｄに対して複数の研磨ライン１３からなる研磨模様を形成することになる。なお、第１模様孔１０の内周面１０ａと第２模様孔１１の内周面１１ａの一方に加飾処理を施す場合には、鏡面研磨を行ってから、研磨工具２７により、前述と同様に、内周面１０ａ、１１ａに対して研磨模様を形成することになる。 Next, similarly to the first decorating process, the polishing tool 20 forms a polishing pattern including the plurality of polishing lines 13 on the disk surface 3d. In addition, in the case where the decoration treatment is applied to one of the inner peripheral surface 10a of the first pattern hole 10 and the inner peripheral surface 11a of the second pattern hole 11, after performing mirror polishing, the same as the above with the polishing tool 27. In addition, a polishing pattern is formed on the inner peripheral surfaces 10a and 11a.
第３の加飾処理のように、鏡面研磨されたディスク面３ｄに対して研磨模様を形成すると、鏡面研磨された平滑なディスク面３ｄに対して、サンドペーパ２１に付着させた研磨粒子により、微細な条溝及び突条の集合体からなる複数本の研磨ライン１３が形成されることになる。このため、鏡面研磨していないディスク面３ｄに対して研磨模様を形成する場合と比較して、研磨ライン１３を構成する微細な条溝及び突条の幅及び深さが一様な大きさになり、研磨ライン１３全体が明るい部分と暗い部分との明暗が明確でクッキリとしたラインになるので、研磨模様の意匠性を向上できる。なお、第１の加飾処理においても、ディスク面３ｄにおける塗膜の剥離後、研磨模様を形成する前に、湿式バレル研磨を行うこともできる。また、第２の加飾処理においても、ディスク部３の少なくとも意匠面に対して、グラインダーにより研磨処理を施した後、模様孔１０、１１の内周面１０ａ、１１ａ及びＵ溝１２の内面にヘアラインを形成する前に、湿式バレル研磨を行うこともできる。 When a polishing pattern is formed on the mirror-polished disk surface 3d as in the third decoration treatment, fine particles are formed on the mirror-polished smooth disk surface 3d by the abrasive particles attached to the sand paper 21. A plurality of polishing lines 13 are formed by the aggregate of the groove and the protrusion. Therefore, as compared with the case where a polishing pattern is formed on the disk surface 3d which is not mirror-polished, the width and depth of the fine groove and protrusion forming the polishing line 13 become uniform. Since the entire polishing line 13 is a clear line in which the bright and dark parts are clear, the design of the polishing pattern can be improved. Also in the first decorating process, wet barrel polishing can be performed after peeling the coating film on the disk surface 3d and before forming a polishing pattern. Also in the second decorating process, after at least the design surface of the disk portion 3 is subjected to a grinding process with a grinder, the inner peripheral surfaces 10a and 11a of the pattern holes 10 and 11 and the inner surface of the U groove 12 are subjected to polishing. Wet barrel polishing can also be performed before forming the hairline.
なお、本実施の形態では、ディスク部３とリム部２とからなる２ピースホイールに本発明を適用した場合について説明したが、ディスク部３とリム部２とを一体鋳造してなる１ピースホイールや、ディスク部とアウタリム部とインナリム部とからなる３ピースホイールに対しても、ディスク面、リム部の内周面、模様孔の内周面の中から選択した１種又は２種以上の一部又は全部の領域に対して、前記と同様にして研磨模様を形成することができる。 In the present embodiment, the case where the present invention is applied to the two-piece wheel including the disc portion 3 and the rim portion 2 has been described, but the one-piece wheel formed by integrally casting the disc portion 3 and the rim portion 2 is described. Also, for a three-piece wheel consisting of a disc portion, an outer rim portion, and an inner rim portion, one or more kinds selected from the disc surface, the inner peripheral surface of the rim portion, and the inner peripheral surface of the pattern hole are selected. The polishing pattern can be formed in the same manner as described above for all or part of the region.
以上、本発明の実施形態について説明したが、本発明は前述した実施形態に何ら限定されるものではなく、本発明の要旨を逸脱しない範囲においてその構成を変更し得ることは勿論である。 Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and it goes without saying that the configuration can be changed without departing from the scope of the present invention.
１ 車両用ホイール
２ リム部
２ａ 内周面
３ ディスク部
３ａ リング部
３ｂ ハブ部
３ｃ ディスク本体
３ｄ ディスク面
３ｅ 角部
４ ホイール本体
５ バルブ
６ ピアスボルト
７ ハブ孔
８ 取付孔
１０ 第１模様孔
１０ａ 内周面
１１ 第２模様孔
１１ａ 内周面
１１ｂ 角部
１２ Ｕ溝
１２ａ 角部
１３ 研磨ライン
２０ 研磨工具
２０ａ チャック
２１ サンドペーパ（円板状）
２２ パッド部材
２５ 軸付きドラム
２６ サンドペーパ（円錐台筒状）
２７ 研磨工具
Ｌ１ 中心線
Ｌ２ 中心線
Ｌ３ 中心線
θ１ 角度
θ２ 角度
1 Vehicle Wheel 2 Rim Part 2a Inner Surface 3 Disk Part 3a Ring Part 3b Hub Part 3c Disk Body 3d Disk Surface 3e Corner 4 Wheel Body 5 Valve 6 Pierce Bolt 7 Hub Hole 8 Mounting Hole 10 First Pattern Hole 10a Inside Peripheral surface 11 Second pattern hole 11a Inner peripheral surface 11b Corner portion 12 U groove 12a Corner portion 13 Polishing line 20 Polishing tool 20a Chuck 21 Sand paper (disk shape)
22 Pad member 25 Shaft-equipped drum 26 Sandpaper (conical truncated cylinder)
27 polishing tool L1 center line L2 center line L3 center line θ1 angle θ2 angle
Claims (10)
前記ホイール本体の意匠面における金属母材の表面に、細長い帯状の複数本の研磨ラインを含む研磨模様を設け、
前記研磨模様を覆うようにクリア塗膜層を設けた、
ことを特徴とする車両用ホイール。 A vehicle wheel having a light metal wheel body,
Provided on the surface of the metal base material on the design surface of the wheel body, a polishing pattern including a plurality of elongated strip-shaped polishing lines,
A clear coating layer was provided to cover the polishing pattern,
A vehicle wheel characterized in that
前記ホイール本体の意匠面における金属母材の表面に、研磨工具を用いて細長い帯状の複数本の研磨ラインを含む研磨模様を形成する工程と、
前記研磨模様を覆うようにホイール本体の意匠面にクリア塗装を施す工程と、
を備えたことを特徴とする車両用ホイールの加飾方法。 A method for decorating a vehicle wheel including a light metal wheel body,
On the surface of the metal base material in the design surface of the wheel body, a step of forming a polishing pattern including a plurality of elongated strip-shaped polishing lines using a polishing tool,
A step of applying a clear coating on the design surface of the wheel body so as to cover the polishing pattern,
A method for decorating a vehicle wheel, comprising:
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0671552A (en) * | 1992-06-26 | 1994-03-15 | Asahi Tec Corp | Manufacture of automobile wheel |
| JPH07223126A (en) * | 1993-12-17 | 1995-08-22 | Topy Ind Ltd | Surface treatment method for aluminum wheel |
| JP2011005917A (en) * | 2009-06-24 | 2011-01-13 | Muramatsu Kenma Kogyo:Kk | Disc of three-piece type aluminum wheel for two wheeler |
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2019
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0671552A (en) * | 1992-06-26 | 1994-03-15 | Asahi Tec Corp | Manufacture of automobile wheel |
| JPH07223126A (en) * | 1993-12-17 | 1995-08-22 | Topy Ind Ltd | Surface treatment method for aluminum wheel |
| JP2011005917A (en) * | 2009-06-24 | 2011-01-13 | Muramatsu Kenma Kogyo:Kk | Disc of three-piece type aluminum wheel for two wheeler |
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