JP5406903B2 - aluminum foil - Google Patents

Description

  The present invention relates to an aluminum wheel mounted on a passenger car.

Aluminum has a lower specific gravity than iron and can be reduced in weight while maintaining strength, so it can be used in wheels for attaching tires to cars to reduce unsprung weight and improve riding comfort. Has been made. In addition, aluminum has a higher thermal conductivity than iron, and the aluminum wheel has the effect of preventing a reduction in braking performance.
Commercially available aluminum wheels are not standard equipment on passenger cars, etc. due to high costs, and are often replaced with standard equipment (iron wheels) at the discretion of the desired car owner. Aluminum wheels have a high degree of design freedom due to the material properties of light weight and high strength. Therefore, an aluminum wheel is generally designed so that a brake disk can be visually recognized, in which a spoke or the like connects a hub at the center of rotation and an outer rim.

When aluminum wheels are selected and purchased, the shape, etc. is important. Some buyers (car owners) are not satisfied with the commercial products and want to add some decoration to the wheels and insist on individuality. And may wish.
As a method for adding decoration around the wheel, it has been proposed to decorate a wheel spacer sandwiched between a rotor and a wheel in an axle (Patent Document 1 and Patent Document 2).

JP 2006-123861 A JP 2006-123862 A

Aluminum wheels that are not standard equipment at the time of vehicle purchase and will be replaced at a car supply store or the like at a later date may be mounted via a wheel spacer for offset adjustment in order to adapt to the mounted vehicle. The technique of decorating the wheel spacer disclosed in Patent Documents 1 and 2 can meet the demands of car owners who desire to enhance the decorativeness of the wheel.
However, there is an aluminum wheel in which the wheel spacer cannot be used (it does not need to be used) in relation to the offset of the car to be mounted. Further, in the wheel spacer with decoration as disclosed in Patent Documents 1 and 2, there is a possibility that the decorative portion protruding in the radial direction may be damaged by a stone or the like on the road surface jumped by the tire.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a decorated aluminum wheel that can assert individuality without depending on a wheel spacer and has no risk of breakage.

An aluminum wheel according to the present invention is an aluminum wheel having a disk part and a rim part integrated with the disk part. The disc portion includes a hub-like portion having a plurality of bolt holes and attached to the hub of the target vehicle, and an annular decorative ring manufactured separately from the hub-like portion. Further, the disk portion has such a shape that when viewed from the side opposite to the attachment side to the hub, the end on the attachment side of the hub-like portion can be visually recognized through the disk portion .

Hub-like section, a flat mounting surface facing the rear side is a mounting side, the bolt holes its edge in the opening and radially outward, which is part of a circle or circle around the rotational center of the target vehicle Have The hub-like portion has a step formed by a peripheral surface having the end of the mounting surface as its end, and an annular surface that is continuous with the peripheral surface and faces the back side.
The decorative ring is fitted into the step so as not to fall off and is integrated with the hub-like portion.

The decorative ring is made of aluminum and at least the outer periphery thereof is colored.
Another aluminum wheel according to the present invention is a wheel spacer in which the disk portion is not the decorative ring, but is manufactured separately from the hub-shaped portion and has an annular ring-shaped portion at one end in the axial direction. An offset adjusting member that functions as described above is provided. The offset adjusting member is made of aluminum. The offset adjusting member is integrated with the hub-shaped portion by fitting the ring-shaped portion into the step so as not to fall off.

The offset adjusting member includes a ring-shaped portion and a cylindrical body portion having an outer appearance in which the axis is aligned with the axis of the ring-shaped portion.
Either or both of the outer periphery of the ring-shaped portion and the outer periphery of the main body portion are colored.
If the decorative ring is formed of a material having a color different from that of aluminum, a belt-shaped decoration is formed on the peripheral surface of the hub-shaped portion without performing a coloring process on the outer periphery thereof. The decorativeness can also be improved by coating the hub-like portion and changing the color of the decorative ring.

  ADVANTAGE OF THE INVENTION According to this invention, the decorated aluminum wheel which can assert individuality without relying on a wheel spacer, and there is no fear of a failure | damage can be provided.

FIG. 1 is a perspective view of the rim portion and the disc portion as seen from the back side. FIG. 2 is a cross-sectional view of a plane including the rotating shaft of the aluminum wheel. FIG. 3 is a diagram showing a configuration around the hub-like portion. FIG. 4 is a perspective view of the aluminum wheel as viewed from the front side.

1 is a perspective view of the rim portion 2 and the disk portion 3 as viewed from the back side, FIG. 2 is a cross-sectional view of the aluminum wheel 1 including the rotation shaft, and FIG. 3 is a diagram showing the configuration around the hub-like portion 4. 4 is a perspective view of the aluminum wheel 1 as viewed from the front side.
The aluminum wheel 1 includes a rim portion 2 and a disc portion 3.
The rim portion 2 has a substantially cylindrical shape as a whole and includes flanges 11 and 11 at both ends.

The disk portion 3 refers to the entire inner portion of the substantially cylindrical rim portion 2, and includes a disc-shaped hub-like portion 4, a plurality of spokes 12,..., 12 extending radially around the hub-like portion 4. And a decorative ring 5.
The hub-like portion 4 is located at the center of the disc portion 3 including the rotation center of the aluminum wheel 1. The hub-like portion 4 is provided with five bolt holes 13,..., 13 penetrating in the axial direction. The five bolt holes 13,..., 13 are arranged at the positions of the apex angles of the regular pentagon. Aluminum wheel 1
Is attached only to a hub (having a car) having five hub bolts that can be penetrated through such bolt holes 13,...

  In the hub-like portion 4, the end surface on the vehicle attachment side (hereinafter referred to as “back side” and the opposite side is referred to as “front side”) is a plane perpendicular to the rotation axis of the aluminum wheel 1. This plane is composed of a surface in the vicinity of the center of the hub-like portion 4 and a substantially rectangular surface continuously extending in the vicinity of the center and extending radially in the circumferential direction and including the openings of the bolt holes 13,. Composed. This plane is referred to as “mounting surface 24”.

The portion of the hub-like portion 4 except the portion where the mounting surface 24 is formed is recessed when viewed from the back side, and the thickness in the direction of the rotation axis is small. Hereinafter, the peripheral part where the bolt holes 13,..., 13 open on the mounting surface 24 is referred to as “hole peripheral part 14”.
The aluminum wheel 1 is reduced in weight by reducing the thickness of a portion excluding the vicinity of the center of the hub-like portion 4 and the peripheral portion 14 of the hole, that is, the portion excluding the mounting surface 24.

  A step for forming an end surface 21 (hereinafter referred to as “circumferential surface 21”) that is curved outward is provided at the distal end portion of the hole peripheral portion 14 that extends in the radial direction. The step is located radially outward from the bolt hole 13. The peripheral surface 21 of the step at each tip portion is a part of a circle centered on the rotation center of the aluminum wheel 1 when viewed from the back side, and the center of curvature of the peripheral surface 21 coincides with the rotation center of the aluminum wheel 1. To do. Therefore, the outer diameter of the hole peripheral portion 14 is large on the front side and small on the back side (circumferential surface 21) at the step.

  By providing the step in the hole peripheral portion 14, a flat surface 22 (hereinafter referred to as an “outward surface 22”) is formed as a whole, which is orthogonal to the peripheral surface 21 and faces the back side together with the peripheral surface 21. As shown in FIG. 2, the peripheral surface 21 and the outward surface 22 are continuous with a curved surface without forming an intersection line. The outward surface 22 is located on the back side of the end surface 23 facing the back side in a portion other than the mounting surface 24 of the hub-like portion 4.

  When the aluminum wheel is to be attached to a hub having four hub bolts, the hub-like portion is provided with four bolt holes at positions corresponding to the positions of the hub bolts. At that time, the attachment surface including the substantially rectangular hole periphery including the bolt hole is formed in a cross shape. And the peripheral surface and outward surface by a step similar to the hole peripheral part 14 mentioned above are formed in the front-end | tip part of the radial direction in a hole peripheral part. The end surface facing the back side in the portion other than the mounting surface of the hub-like portion is located on the front side of the outward surface, that is, on the back side of the outward surface, thereby reducing the weight of the aluminum wheel.

  In a so-called multi-pitch wheel that has many bolt holes so that the hub bolt can be mounted on any of several types of hubs in a car hub, the hub-shaped part has two parts with different thicknesses, that is, the entire mounting surface. In some cases, it is difficult to form the peripheral portion of the hole and the other portion. Even in such a case, a step is provided at a portion corresponding to the edge between the back side end surface and the outer peripheral surface of the hub-like portion. The steps are continuous in the circumferential direction, and the circumferential surface and the outward surface formed by the steps are also continuous in the circumferential direction.

In the multi-pitch wheel capable of forming the hole peripheral portion 14 and other portions, the hole peripheral portion 14 and the step (circumferential surface 21) are the same as the aluminum wheel 1 having five or four bolt holes 13. The outward face 22) is formed.
In the description of the aluminum wheel and the multi-pitch wheel having four bolt holes, “hole peripheral portion”, “mounting surface”, “circumferential surface”, “outward surface”, “end surface facing the back side”, etc. have five bolt holes. The meaning in the aluminum wheel 1 is the same.

The plurality of spokes 12,..., 12 are formed in six sets in which two angles formed on the rotation center side are set as one set, and the angles between the sets are made equal. The aluminum wheel 1 can visually recognize a portion located on the back side of the hub-like portion 4 from between the spokes 12.
The disk portion 3 is integrated with the rim portion 2 by extending the extended ends of the spokes 12,..., 12 to one open end of the rim portion 2.

If the disk part 3 can visually recognize the back side end part of the hub-like part 4 when viewed from any position on the front side of the aluminum wheel, a mesh type other than the type having the spokes 12, ..., 12 (spoke type) described above, Any of a dish type, a fin type, a wire spoke type, and a spiral type (URL: http://www.jawa.jp/basic/type.html, classification by design of light alloy wheel) may be adopted.

The aluminum wheel 1 is manufactured by integrating the rim portion 2 and the disc portion 3. The aluminum wheel 1 is not a one-piece structure manufactured integrally, but a two-piece structure in which the rim portion 2 and the disk portion 3 are integrated by welding, or the rim portion is manufactured as two parts and integrated with the disk portion 3 It may be a piece structure.
The decorative ring 5 is an annular member having a substantially rectangular cross section. The decorative ring 5 has an inner diameter slightly smaller than the diameter (outer diameter) of the peripheral surface 21 in the hub-like portion 4. Further, the thickness (length in the axial direction) of the decorative ring 5 is substantially equal to the distance between the flat end face of the hole peripheral portion 14 and the outward face 22.

The decorative ring 5 is chamfered with a curved surface at the inner peripheral edge at one end in the axial direction. The chamfered curved surface has substantially the same cross-sectional shape as that of the curved surface formed by the peripheral surface 21 and the outward surface 22.
The decorative ring 5 is made of aluminum, and its surface is covered with an oxide film of red, blue, gold, colorless or other colors by anodizing. The colorless decorative ring 5 is prepared for a purchaser who has a good feeling in the design of the wheel and does not require the decoration of the hub-like part.

The decorative ring 5 is heated to 100 to 130 ° C. by shrink fitting, and then attached to the hub-like portion 4 so as to fill the step in the hole peripheral portion 14 and integrated as the disc portion 3.
The decoration ring 5 and the hub-like portion 4 may be integrated by a bolt that penetrates from the outer periphery of the decoration ring 5 in the radial direction, or an adhesive may be used. When the decorative ring 5 and the hub-like portion 4 are integrated by a method other than shrink fitting, the inner diameter of the decorative ring 5 is set so as to be fitted into the step of the hub-like portion 4 without requiring force. It is substantially the same as or slightly larger than the diameter (outer diameter) of the peripheral surface 21 in the shape portion 4.

As shown in FIG. 4, the aluminum wheel 1 can see the decorative ring from the gap between the spokes 12 and 12, and the colored decorative ring 5 enhances the decorativeness of the aluminum wheel 1.
In the aluminum wheel 1, the outward face 22 in the hole peripheral portion 14 is located on the back side of the end face 23 facing the back side. For this reason, a gap 25 is formed between the end face 23 other than the hole peripheral portion 14 and the decorative ring 5 fitted in the step, and this gap 25 is a constant interval in the circumferential direction. The decorativeness of the wheel 1 is improved.

Since the aluminum wheel 1 includes the decorative ring 5 and the size of the hub-like portion 4 is the same as that of the existing wheel and does not have a portion protruding radially outward in the hub-like portion 4, for example, a brake caliper and There is no risk of damage due to interference.
The decorative ring 5 may be increased in outer diameter to the extent that it does not interfere with the brake caliper, making it more conspicuous to enhance the decorativeness.

The decorative ring 5 also has a function of increasing the rigidity of the hub-like portion 4 in the aluminum wheel 1. The decorative ring 5 increases the rigidity of the hub-like portion 4 in the same manner as the rib is provided around the hub-like portion 4.
The peripheral surface 21 and the outward surface 22 in the hole peripheral portion 14 of the hub-like portion 4 are made continuous by curved surfaces without forming an intersection line, thereby generating stress concentration generated in this portion when the intersection line is formed. Can be prevented.

  The decoration ring 5 can be integrated with the rim portion 2 and the disc portion 3 if a small heating tank capable of raising the temperature to, for example, about 150 ° C. is provided. Therefore, the aluminum wheel 1 is stocked with relatively small decorative rings 5 of various colors, so that the decorative ring 5 of the color desired by the purchaser can be integrated without having many aluminum wheels 1 of different colors in stock. An aluminum wheel 1 can be provided.

Since the decorative ring 5 shrink-fitted on the aluminum wheel 1 can be removed from the hub-like portion 4 by heating again, the decorative ring 5 can be replaced.
The decorative ring 5 may have a shape of the outer peripheral surface that is excellent in other decorative properties on the condition that the inner peripheral surface and one end surface thereof can be fitted into the step in the hole peripheral portion 14.
The hub-like portion 4 can be integrated with an offset adjusting member that functions as a wheel spacer.

The offset adjustment member has a length necessary for offset adjustment and a substantially cylindrical main body portion, and an annular ring that projects in the axial direction on one axial side of the main body portion and has the same shape as the decorative ring 5 described above. It is composed of a shape part. In the offset adjusting member, the main body portion and the ring-shaped member are manufactured as a single body.
The offset adjusting member is made of aluminum, and its outer periphery is colored by anodizing to give a decorative property. Even if coloring is performed only on the outer periphery of the ring-shaped part or only on the outer periphery of the main body part, the decorativeness can be improved. The offset adjustment member functions as an offset adjustment in addition to increasing the rigidity of the aluminum wheel and imparting decorativeness.

In the aluminum wheel 1, the decorative ring 5 is made of aluminum in consideration of increased rigidity. However, when the purpose is only to improve decorativeness, the decorative ring 5 is formed of another metal, synthetic resin, or the like. May be. The cross-sectional shape of the decorative ring 5 is not limited to the shape shown in FIG. 2, and other shapes that can be fitted so as not to fall off the step can be selected.
In the above-described embodiment, each structure or overall structure, shape, size, number, material, and the like of the aluminum wheel 1 and the aluminum wheel 1 can be appropriately changed in accordance with the spirit of the present invention.

  The present invention can be used to improve the decorativeness of an aluminum wheel mounted on a passenger car.

DESCRIPTION OF SYMBOLS 1 Aluminum wheel 2 Rim part 3 Disk part 4 Hub-like part 5 Decorative ring 13 Bolt hole 21 Circumferential surface 22 (hub-like part) Annular surface (outward surface) facing the back side
24 Mounting surface

Claims (5)

An aluminum wheel having a disk part and a rim part integrated with the disk part,
The disk portion is
A hub-like portion having a plurality of bolt holes and attached to the hub of the target vehicle;
Provided with a decorative ring annular be separately manufactured and the hub-like portion,
And when viewed from the opposite side of the mounting side to the hub, it has a shape in which the end of the mounting side in the hub-like portion can be visually recognized through the disk portion,
The hub-like part is
A flat mounting surface that faces the back side, which is the mounting side to the target vehicle, and is a circle or a part of a circle whose opening edge in the radial direction is centered on the center of rotation.
A step formed by a peripheral surface having the end edge of the mounting surface as its end edge and an annular surface that is continuous with the peripheral surface and faces the back side;
The decorative ring, aluminum wheel, characterized in that to expose the outer periphery of its being fitted so as not to fall off the stage is integrated in the hub-like portion. The aluminum wheel according to claim 1, wherein the decorative ring is made of aluminum and at least an outer periphery thereof is colored . An aluminum wheel having a disk part and a rim part integrated with the disk part,
The disk portion is
A hub-like portion having a plurality of bolt holes and attached to the hub of the target vehicle;
An offset adjusting member that is manufactured separately from the hub-like part and is made of aluminum having an annular ring-shaped part at one end in the axial direction thereof, and functions as a wheel spacer;
And when viewed from the opposite side of the mounting side to the hub, it has a shape in which the end of the mounting side in the hub-like portion can be visually recognized through the disk portion,
The hub-like part is
A flat mounting surface that faces the back side, which is the mounting side to the target vehicle, and is a circle or a part of a circle whose opening edge in the radial direction is centered on the center of rotation.
A step formed by a peripheral surface having the end edge of the mounting surface as its end edge and an annular surface that is continuous with the peripheral surface and faces the back side;
The offset adjusting member is integrated with the hub-shaped portion by fitting the ring-shaped portion into the step so as not to fall off.
An aluminum wheel characterized by that . Before Symbol offset adjustment member,
The ring-shaped part ;
A cylindrical main body portion whose appearance is aligned with the axial center of the ring-shaped portion.
The aluminum wheel according to claim 3 . The outer and the body portion either or aluminum wheels either claim 4 which is colored in the outer periphery of the front Symbol annular section.

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