KR20230105324A - Multi piece automobile wheel - Google Patents

Abstract

The present invention relates to a multi piece automobile wheel. The multi piece automobile wheel according to exemplary embodiments of the present invention may comprise: an inner rim; an outer rim made of the same material as the inner rim; and a disk made of a material different from the inner rim and the outer rim. The disk, the outer rim, and the inner rim may be stacked in the same order. Additionally, the disk may be selected from aluminum, an aluminum alloy, and another aluminum alloy containing a dissimilar material. Provided is the multi piece automobile wheel which is inexpensive yet resistant to an impact.

Description

Multi piece automobile wheel

The present invention relates to a multi-piece automobile wheel.

In general, a wheel is referred to as a wheel, but to be more specifically classified, it is divided into a wheel and a tire. The wheel supports all the weight of the vehicle and plays the last role in transmitting driving and braking forces to the road surface. A wheel is composed of a rim supporting a tire and a part supporting the rim to a hub. Wheel classification criteria can be classified according to material, manufacturing method, structure, and design. If the wheel is classified according to the material, there are three types: a steel wheel made of steel, an aluminum wheel made of aluminum alloy, and a magnesium wheel made of magnesium alloy. Recently, aluminum wheels are widely used in automobiles.

In addition, if the wheel is classified according to the manufacturing method, it can be divided into a cast wheel and a forged wheel. The cast wheel is made by melting aluminum alloy material, pouring it into a mold, and then hardening it, so it has the advantage of being easy to process and uniform in quality, but has a problem in that it is weak against impact due to low density and insufficient rigidity.

On the other hand, the forged wheel is a wheel made by crushing an aluminum alloy material into a mold at high pressure. It has the advantage of being light in weight, excellent in density, and strong in impact due to high toughness, but has a problem in that the unit price increases due to high energy consumption.

In addition, if the wheel is classified by structure, it is divided into one piece, two piece, and three piece depending on whether the wheel is made of one piece or 2-3 pieces. there is. ONE PIECE wheel is a wheel casted in a mold with a rim and a disc as one piece. It is easy to manufacture and easy to secure rigidity, so there is little variation in quality, but it is difficult to realize weight reduction from a technical point of view. The TWO PIECE wheel is a wheel that is made by separately making the rim and the disc, or by making only the outer rim separately and welding or bolting them together. Since they are made separately, various materials and manufacturing methods can be applied to each part. Therefore, various designs and light weight are possible. THREE PIECE wheel refers to a wheel that is assembled by separately making an outer rim, inner rim, and disc, and then fastening and assembling with bolts. Depending on the assembly method, it is divided into sandwich type, overhand type, and underhand type. Since it is replaceable, it can be installed on many types of vehicles, and sophisticated and diverse designs and light weight are possible.

1, which is a cross-sectional view of a conventional three-piece automobile wheel, in an aluminum wheel, the inner rim 11, the outer rim 12, and the center disk 13 are coupled by a fixing bolt 14, and the inner rim ( 11) and the opposite area of the outer rim 12, the rim 120 is bent inward to set the flange section 15, and the fixing bolt 14 is fixed to the center disc ( 13) and this flange section (15).

At this time, the inner rim 11 and the outer rim 12 are made of aluminum sheet processed by metal spinning, aluminum forging or aluminum casting, and the center disk 13 is also made of forged or cast aluminum.

On the other hand, in the case of a three-piece automobile wheel having the above structure, compared to a case made of cast iron, steel, or an iron alloy including these, there are disadvantages in that it is expensive and weak against impact.

In addition, in the case of the one-piece automobile wheel made of aluminum shown in FIG. 2, since it includes parts marked with BEAD SEAT and HUMP in order to improve strength, there is also a problem that the weight is increased.

One of the various problems of the present invention is to provide a multi-piece automobile wheel that is inexpensive and resistant to impact.

A multi-piece automobile wheel according to exemplary embodiments of the present invention includes an inner rim; an outer rim made of the same material as the inner rim; and a disk made of a material different from that of the inner rim and the outer rim, wherein the disk, the outer rim, and the inner rim are stacked in order, and the disk contains aluminum, an aluminum alloy, and a dissimilar material. It may be selected from among aluminum alloys.

The heterogeneous material may include at least one selected from ceramic fibers, carbon fibers, and combinations thereof.

The inner rim, the outer rim, and the disk may further include a fastening member that penetrates and fastens in order, and the fastening member may be fastened to the disk, the outer rim, and the inner rim through bolt coupling.

A reinforcing member extending from the fastening member toward the inner rim and the outer rim may be further included.

A multi-piece automobile wheel according to exemplary embodiments of the present invention includes an inner rim; an outer rim made of the same material as the inner rim; a disc made of a material different from that of the inner rim and the outer rim; and a sealing member preventing separation of the inner rim and the outer rim, and the disk may be selected from aluminum, an aluminum alloy, and an aluminum alloy containing a dissimilar material.

The heterogeneous material may include at least one selected from ceramic fibers, carbon fibers, and combinations thereof.

The disk may include a protrusion interposed between the inner rim and the outer rim, and the sealing member is coupled to an end of the protrusion so that the inner rim and the outer rim are separated in a protruding direction of the protrusion. can prevent

In the multi-piece automobile wheel according to exemplary embodiments of the present invention, the outer rim and the inner rim may be made of cast iron, steel, or an iron alloy including these, respectively, and the disk may be aluminum, aluminum alloy, or aluminum containing a foreign material. Since it can be made of an alloy, it can have an effect of being less expensive and stronger against impact than conventional three-piece automobile wheels made of aluminum or aluminum alloy, and at the same time improving strength and not including bulky parts. can

In addition, unlike a conventional three-piece automobile wheel in which a plurality of pieces are tightly coupled at regular intervals, the multi-piece automobile wheel according to the present invention uses only one fastening member to couple the outer rim, the inner rim, and the disk Accordingly, the manufacturing process steps of the automobile wheel can be simplified and the process difficulty can be lowered.

In addition, the multi-piece automobile wheel according to the present invention can combine the outer rim, the inner rim, and the disk using only one fastening member, and thus the manufacturing process steps of the automobile wheel can be simplified and the process difficulty can be reduced. there is.

In addition, with existing manufacturing methods of steel wheels, mainly represented by rolling and welding, high precision roundness and cylindricity cannot be maintained. It has the advantage of avoiding the anxiety factor of

1 and 2 are cross-sectional views for explaining a conventional multi-piece or one-piece automobile wheel.
3 is a view showing one embodiment of a multi-piece automobile wheel according to the present invention.
4 is a view showing one embodiment of a multi-piece automobile wheel including a reinforcing member.
5 is a view showing another embodiment of a multi-piece automobile wheel according to the present invention.
6 is a view showing another embodiment of a multi-piece automobile wheel according to the present invention.

Hereinafter, specific embodiments of the present invention will be described. The detailed descriptions that follow are provided to provide a comprehensive understanding of the methods, devices and/or systems described herein. However, this is only an example and the present invention is not limited thereto.

In describing the embodiments of the present invention, if it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or operator. Therefore, the definition should be made based on the contents throughout this specification. Terminology used in the detailed description is only for describing the embodiments of the present invention and should in no way be limiting. Unless expressly used otherwise, singular forms of expression include plural forms. In this description, expressions such as "comprising" or "comprising" are intended to indicate any characteristic, number, step, operation, element, portion or combination thereof, one or more other than those described. It should not be construed to exclude the existence or possibility of any other feature, number, step, operation, element, part or combination thereof.

Also, terms such as first, second, A, B, (a), and (b) may be used to describe components of an embodiment of the present invention. These terms are only used to distinguish the component from other components, and the nature, order, or order of the corresponding component is not limited by the term.

Hereinafter, a multi-piece automobile wheel according to the present invention will be described in detail through drawings.

3 is a view showing an embodiment of a multi-piece automobile wheel according to the present invention, and FIG. 4 is a view showing an embodiment of a multi-piece automobile wheel including a reinforcing member.

3 and 4, a multi-piece automobile wheel 1 according to exemplary embodiments of the present invention includes an inner rim 10, an outer rim 20 made of the same material as the inner rim 10, and The inner rim 10 and the outer rim 20 may include a disk 30 made of a different material.

The inner rim 10 and the outer rim 20 may be made of cast iron, steel, or an iron alloy including these, respectively, and the disk 30 may be selected from aluminum, aluminum alloy, and aluminum alloy containing heterogeneous materials. , It is cheaper than a conventional three-piece automobile wheel made of aluminum or aluminum alloy, and can have a strong effect on impact.

The heterogeneous material may include at least one selected from ceramic fibers, carbon fibers, or combinations thereof.

Carbon fibers may be mixed with less than 50 wt% of the ceramic fibers, and ceramic fibers may be mixed with less than 50 wt% of the carbon fibers.

In one embodiment, the multi-piece automobile wheel 1 may be stacked in the order of the disk 30, the outer rim 20, and the inner rim 10, but the concept of the present invention is not necessarily limited thereto.

In addition, the multi-piece automobile wheel 1 according to the present invention may further include one fastening member 40 fastened by passing through the inner rim 10, the outer rim 20, and the disk 30 in sequence.

More specifically, the disk 30, the outer rim 20, and the inner rim 10 may each include a hole through which the fastening member 40 is coupled.

After the inner rim 10, the outer rim 20, and the disk 30 are positioned so that the respective holes communicate, the inner rim 10, the outer rim 20, and the disk 30 are connected by the fastening member 40. In this case, a part of the disk 30 may be penetrated by the fastening member 40.

The fastening member 40 is provided in a bolt shape and may be fastened to the disk 30, the outer rim 20, and the inner rim 10 through bolt coupling, but the concept of the present invention is not necessarily limited thereto, and the disk (30), if it can be firmly coupled to the outer rim 20 and inner rim 10, other things may also be adopted.

In the multi-piece automobile wheel 1 according to the present invention, the outer rim 20, the inner rim 10, and the disk 30 can be coupled using only one fastening member 40, so that the plurality of pieces are spaced at regular intervals. Unlike conventional three-piece automobile wheels that are closely coupled to each other, the manufacturing process steps are simplified and the process difficulty is reduced.

Referring to FIG. 4 , the multi-piece automobile wheel 1 according to the present invention may further include reinforcing members 50 extending from the fastening member 40 toward the inner rim 10 and the outer rim 20. .

The reinforcing member 50 may be interposed between the inner rim 10 and the head portion of the fastening member 40, including a space into which the fastening member 40 can be inserted in the center. At this time, the multi-piece automobile wheel 1 is stacked in the order of the disk 30, the outer rim 20, the inner rim 10, and the reinforcing member 50, and is sequentially penetrated and fastened by the fastening member 40. It can be.

The reinforcing member 50 may be a spring having a shape in which the distal end extending toward the inner rim 10 and the outer rim 20 is bent to contact the inner rim 10 or the outer rim 20, but the present invention The concept is not necessarily limited thereto, and other shapes may be adopted as long as they protect the inner rim 10 and the outer rim 20 from impact and improve overall durability.

5 is a view showing another embodiment of a multi-piece automobile wheel according to the present invention, and FIG. 6 is a view showing another embodiment of a multi-piece automobile wheel according to the present invention.

Since FIGS. 5 and 6 include substantially the same or similar configurations as the multi-piece automobile wheel 1 described with reference to FIGS. 3 and 4 , the same configurations are assigned the same reference numerals and detailed description thereof will be omitted. .

Referring to FIG. 5 , in the multi-piece automobile wheel 1 according to the present invention, bending portions 11 and 21 may be formed in areas where the inner rim 10 and the outer rim 20 are adjacent to each other, respectively. The bending unit 11 and the outer rim bending unit 21 may include at least one surface facing each other.

Although FIG. 5 shows an embodiment in which the disk 30 and the outer rim bending portion 22 are in direct contact, the concept of the present invention is not necessarily limited thereto, and the disk 30 is connected to the inner rim bending portion 11. It may be in direct contact with any one of the outer rim bending parts 22 .

In one embodiment, in the multi-piece car wheel 1, the disk 30, the outer rim 20, and the inner rim 10 are sequentially arranged in a state in which the fastening member 40 passes through them sequentially and is fastened. can

That is, the fastening member 40 sequentially passes through the disk 30, the outer rim bending part 22, and the inner rim bending part 11, and at this time, the disk 30 may be completely penetrated by the fastening member 40. there is.

Referring to FIG. 6 , the multi-piece automobile wheel 1 according to the present invention, in one embodiment, includes an inner rim 10, an outer rim 20, a disk 30, and an inner rim 10 and an outer rim ( 20) may include a sealing member 60 preventing separation.

The disk 30 may include a protrusion 32 interposed between the outer rim 20 and the inner rim 10, and the sealing member 60 is disposed at an end of the protrusion 32 to form an outer rim 20. And it is possible to prevent the inner rim 10 from being separated in the protruding direction of the protruding portion 32 .

At this time, the outer rim 20 may be closely coupled to the first fastening surface 321 of the protruding part 32, and the inner rim 10 may be closely coupled to the second fastening surface 323 of the protruding part 32. It can be.

In addition, a plurality of grooves may be formed in adjacent regions of the disk 30 and the outer rim 20 and the disk 30 and the inner rim 10, except for the protrusion 32, and the outer rim 20 may be formed along the plurality of grooves. The rim 20 and the inner rim 10 may be coupled to the disk 30 by rotating them.

More specifically, the outer rim 20 may be coupled by rotating in a first axial direction along the plurality of grooves between the disk 30 and the sealing member 60, and the inner rim 10 may be coupled to the disk 30 It may be coupled by rotating in a second axial direction opposite to the first axial direction along the plurality of grooves between the and sealing member 60 .

The first axis direction may be a counterclockwise direction, and the second axis direction may be a clockwise direction, but the concept of the present invention is not necessarily limited thereto.

However, the concept of the present invention is not necessarily limited thereto, and the apparatus/method/system according to exemplary embodiments of the present invention may be applied to various product/technical fields other than the above-described product/technical fields.

Although various embodiments of the present invention have been described in detail above, those skilled in the art will understand that various modifications are possible to the above-described embodiments without departing from the scope of the present invention. . Therefore, the scope of the present invention should not be limited to the described embodiments and should not be defined, and should be defined by not only the claims to be described later, but also those equivalent to these claims.

1: Multi-piece car wheel
10: inner rim
11: Inner rim bending part
20: outer rim
21: outer rim bending part
30: disk
32: protrusion
40: fastening member
50: reinforcing member
60: sealing member

Claims (7)

inner rim;
an outer rim made of the same material as the inner rim; and
Including; a disk made of a material different from the inner rim and the outer rim,
The disk, the outer rim and the inner rim are stacked in order,
The multi-piece automobile wheel, characterized in that the disc is selected from aluminum, aluminum alloys and aluminum alloys containing heterogeneous materials. According to claim 1,
The heterogeneous material is a multi-piece automobile wheel, characterized in that it comprises at least one selected from ceramic fibers, carbon fibers, and combinations thereof. According to claim 2,
Further comprising a fastening member that penetrates and fastens through the inner rim, the outer rim, and the disk in order,
The fastening member is a multi-piece automobile wheel, characterized in that fastened to the disk, the outer rim and the inner rim through bolt coupling. According to claim 3,
The multi-piece automobile wheel further comprising a reinforcing member extending from the fastening member toward the inner rim and the outer rim. inner rim;
an outer rim made of the same material as the inner rim;
a disc made of a material different from that of the inner rim and the outer rim; and
Including; a sealing member that prevents separation of the inner rim and the outer rim,
The multi-piece automobile wheel, characterized in that the disc is selected from aluminum, aluminum alloys and aluminum alloys containing heterogeneous materials. According to claim 5,
The heterogeneous material is a multi-piece automobile wheel, characterized in that it comprises at least one selected from ceramic fibers, carbon fibers, and combinations thereof. According to claim 6,
the disk,
Including; a protrusion interposed between the inner rim and the outer rim,
The sealing member is coupled to an end portion of the protruding portion to prevent the inner rim and the outer rim from being separated in a protruding direction of the protruding portion.

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