JPH1142901A - 2-piece full design wheel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manufacture a quality car wheel economically by increasing the attractiveness of design of car wheels. SOLUTION: A 2-piece full design wheel comprises a disk 40 on the outer peripheral part of which a rim flange-shaped part 42 is formed and a rim 30 at one end of which a rim flangeless rim bead seat part 30b is provided and at the other end of which a rim flange part 30a is provided. Also it is formed by welding the rim flange-shaped part 42 of the disk 40 to the rim bead seat part 30b. In addition, the rim flange-shaped part 42 is curled from the front to rear side of the disk 40 so as to form it with a front side flange part 42a and a rear side flange part 42b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a two-piece full design wheel in which a disc having a rim flange portion and a one-sided flangeless rim are welded to one another among automobile wheels.

[0002]

2. Description of the Related Art As a basic shape of an automobile wheel, as shown in FIG. 8, a type in which an outer peripheral end 21 of a disk 2 is fitted to a drop portion 13 of a rim 1 or as shown in FIG. Further, a type in which the outer peripheral end 21 of the disk 2 is fitted to the bead seat 12 of the rim 1 is well known.
However, recently, the design surface viewed from the front side of the automobile wheel can be made wider and the design quality can be enhanced.
The popularity of two-piece full-design wheels, such as those shown at 0, is growing. (For example, Japanese Unexamined Patent Publication No. 09-020103 proposed earlier by the present applicant) This assembling structure includes a disk 2 having a rim flange-shaped portion 22 formed on an outer peripheral portion and a flangeless bead seat portion 15 at one end. And a rim 1 having a flange 14 at the other end.
The rim bead seat portion 15 is welded to the back side of the rim flange shape portion 22 of FIG.

[0003]

However, a drawback of these two-piece full design wheels is that, when viewed from the front side, the inner side of the rim flange-shaped portion 22 of the disk 2 is not covered.
Since the portion 2a was concave, a shadow appeared, and the design was not satisfactory. Further, the disc 2 is plated or painted as a single item, and the rim bead seat portion 15 is provided on the back side of the rim flange-shaped portion 22 of the disc 2.
When welding is performed, a burn due to the heat effect is caused by the flange shape portion 22
Therefore, plating and painting cannot be performed on the disc 2 as a single item, and plating and painting must be performed centering on the front design surface 22b of the disc 2 after the rim 1 and the disc 2 are assembled by welding. Did not. For this reason, the plating solution or the paint enters into the recessed portion caused by the assembling of the rim 1 and the disc 2, for example, the back side 23 of the bead seat portion 15 on the flangeless side of the rim and is taken out, so that the cost is increased. . Furthermore, bead seat part back side 2
In No. 3, the mud clogged while the vehicle was running, and the water that had entered freezed, causing vibration due to wheel imbalance. An object of the present invention is to provide a two-piece full design wheel capable of solving these problems, further improving the design, and economically producing a high-quality automobile wheel.

[0004]

The two-piece full design wheel of the present invention which achieves the object of the present invention is as follows. (1) A disc having an outer peripheral portion formed in the shape of a rim flange portion, a rim having a flangeless rim bead seat portion at one end, and a rim having a rim flange portion at the other end. In a two-piece full design wheel in which a rim bead seat portion is welded and joined, the rim flange portion of the disc is curled from the front side to the back side of the disc,
A two-piece full design wheel comprising a front flange portion and a rear flange portion. (2) The flangeless rim bead seat and the disc backside flange are placed on the flangeless side rim bead seat end with the disc backside flange end being overlapped with the discless side flange.
The two-piece full design wheel according to (1), wherein the two wheels are welded and joined. (3) The flange-less rim bead seat is overlapped with the flange-less rim bead seat end on the flange-less rim bead seat, and the flange-less rim bead seat end is in contact with the back side of the front flange. The two-piece full design wheel according to (1), wherein the portion and the disk back side flange portion are welded to each other. (4) The flangeless rim bead seat portion and the disk backside flange portion are welded to each other while the flangeless side rim bead seat end is in contact with the disk backside flange portion. The described two-piece full design wheel. (5) A bead seat flange bent inward in the radial direction of the rim is formed at the end of the bead seat on the flangeless side rim, and the bead seat flange and the disc back side flange are welded to each other. The two-piece full design wheel according to (1). (6) The step according to (1), wherein a step portion of the bead seat is formed at an end portion of the rim bead seat, which falls inward in the radial direction of the rim, and the step portion and the disc back side flange portion are welded to each other. 2-piece full design wheel. (7) The outer peripheral portion of the disk is formed in the shape of a rim flange portion, and the rim flange portion is curled from the front side to the back side of the disk, so that the front side flange portion,
A disk constituted by a backside flange portion, a rim connected to a flangeless rim bead seat portion at one end, having a bead seat rising portion rising outward in the radial direction of the rim, and a rim having a rim flange portion at the other end. A two-piece full design wheel, wherein an end of the rear flange portion of the disc and an end of the bead seat rising portion are abutted in a radial direction, and both are welded to each other. (8) A plurality of drain holes are provided at the outermost peripheral portion in the radial direction of the rim flange portion of the disc (1).
Or (2), or (3), or (4), or (5), or (6), or (7).

In the two-piece full design wheel of the above (1), the rim flange-shaped portion of the disk is curled from the front side to the back side of the disk, thereby comprising the front side flange portion and the back side flange portion having a gap in the axial direction. As a result, the area of the radially outer portion of the disk is widened and no shadow is formed, so that the design can be improved. In addition, since the rim and the disk are welded between the rear flange portion, which is remote from the front flange portion of the disk, and the rim bead seat portion on the flangeless side, the front flange portion, which is the design surface, is heated during welding. Since it is not easily affected, it does not cause welding burns, and can be plated or painted on a single disk, and can be manufactured at low cost. Furthermore, since the mud and water hardly clog on the back side of the rim bead seat portion, vibration due to improper wheel balance can be prevented. The two-piece full design wheel of the above (2) has the same operation as the above (1). In the two-piece full design wheel of (3), the rim bead seat end is extended to near the front flange of the disc, and the rim bead seat and the rear flange of the disc are welded to each other. Rigidity can be improved. In the two-piece full design wheel of the above (4), the rim bead seat portion and the disc back side flange portion are welded to each other in a state where the rim bead seat end portion is in contact with the disc back side flange portion, so that manufacture is easy. . In the two-piece full design wheel of the above (5), a bead seat flange is formed at the end of the rim bead seat and bent inward in the radial direction of the wheel, and the bead seat flange and the disc back side flange are welded to each other. As a result, the rigidity of the assembly structure can be increased, and the bent bead seat flange portion plays the role of a groove, so that the welded joint can be surely penetrated and the weldability can be improved. In the two-piece full design wheel of (6) above,
A bead seat step is provided at the end of the rim bead seat, which falls inward in the radial direction of the wheel. This increases the rigidity of the step and serves as a semi-groove to improve weldability. . In the two-piece full design wheel of (7), the rim has a rim having a rim flange portion at the other end, the bead seat rising portion being connected to the flangeless rim bead seat portion and rising outward in the radial direction of the rim. Since the back flange end of the disk and the end of the bead seat rising portion are overlapped and welded together, the back flange of the disk can be short, and the curled portion can be easily formed. In the above two-piece full design wheel (8),
Since a plurality of drain holes are provided at the radially outermost portion of the rim flange-shaped portion of the disk, water does not accumulate inside the flange-shaped portion.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The piece full design wheel will be described with reference to FIGS. Components common to all the embodiments are denoted by the same reference numerals throughout the embodiments. First, components common to all embodiments of the present invention will be described with reference to FIG. In FIG. 1, a two-piece full design wheel has a disk 4 having a rim flange-shaped portion 42 formed on an outer peripheral portion.
0 and a one-sided flangeless rim 30, the rim flange-shaped portion 42 of the disc 40 and the rim 30
It is manufactured by welding and joining the bead seat portion 30b. Rim flange-shaped portion 42 of disc 40
Is formed by curling from the front side of the disc 40, that is, the so-called design surface, to the back side, thereby forming a front surface flange portion 42a constituting a design surface and a back side flange portion 42b connected thereto. The rim 30 is located at a position away from the disk 40, and has a rim flange portion 30a, a bead seat portion 30b connected thereto, and a sidewall portion A3.
0c, a drop portion 30d, a side wall portion B30e, and a flangeless rim bead seat portion 30b near the disk 40 at the other end.
b is welded to the rear flange-shaped portion 42b of the disk 40.

Next, a configuration specific to each embodiment of the present invention will be described. In the first embodiment of the present invention, as shown in FIG. 2, the end of the rear flange portion 42b of the disc 40 is overlapped with the end of the flangeless rim bead seat portion 30b, and the flangeless rim bead seat portion 30b And the back side flange portion 42b are welded and assembled.

In the second embodiment of the present invention, as shown in FIG. 3, a rim bead seat portion 30b on the flangeless side is provided.
The end of the rear flange portion 42b is overlapped with the upper end, and the end of the rim bead seat portion 32b is extended to the vicinity of the rear side of the front flange portion 42a of the disk 40, so that the rim bead seat portion 30b and the rear flange portion 42b are joined together. It is configured to be welded and assembled.

In a third embodiment of the present invention, as shown in FIG. 4, a rim bead seat portion 30b on the flangeless side is provided.
The rim bead seat portion 30b and the back side flange portion 42b of the disk 40 are welded and assembled in a state in which the end of the rim bead contacts the side surface of the back side flange portion 42b of the disk 40.

In a fourth embodiment of the present invention, as shown in FIG. 5, a rim bead seat portion 30b on the flangeless side is provided.
A bead seat flange portion 30h is formed at an end of the wheel and bent inward in the radial direction of the wheel. The bead seat flange portion 30a and the back side furan portion 42b of the disc 40 are formed.
Are welded.

In a fifth embodiment of the present invention, as shown in FIG. 6, a rim bead seat portion 30b on the flangeless side is provided.
A bead seat stepped portion 30f which falls inward in the radial direction of the wheel is provided at the end of the wheel, and the tip of the stepped portion 30f is brought into contact with the side surface of the back side flange portion 42b, thereby forming the stepped portion 30f and the back side flange portion. 42b.

In the sixth embodiment of the present invention, as shown in FIG. 7, a rim flange-shaped portion 42 is formed on the outer periphery of the disk 40, and the rim flange-shaped portion 42 is curled from the front side to the back side of the disk. Thus, the front flange 42a and the rear flange 42b are formed. Flangeless rim bead seat 30b at one end
A bead seat rising portion 30g that rises radially outward of the rim is formed at the other end, and the rim 30 having the rim flange portion 30a and the disc 40 at the other end are connected to the end of the back side flange portion 42b of the disc 40. The end of the bead sheet rising portion 30g is abutted in the radial direction, and the both are welded and joined.

In each of the embodiments of the present invention, as shown in FIGS.
It is desirable to provide a plurality of drainage holes 43 at the outermost peripheral portion in the radial direction, that is, at the top of the so-called curled portion. By providing the drain hole 43, water that easily accumulates in the curled rim flange-shaped portion 42 of the disk 40 can be easily discharged. The number of drain holes may be at least one, but 2
It is desirable that there be a plurality or more pieces so that the strength of the flange-shaped portion 42 is not affected. However, it is not essential and may not be provided in some cases.

Next, the operation of the embodiment of the present invention will be described.
An operation common to all the embodiments of the present invention will be described. The rim flange portion 42 of the disk 40 is curled from the front side to the rear side of the disk 40 to form the front side flange portion 42a and the back side flange portion 42b. And the design can be improved. In addition, since the welding connection between the rim 30 and the disk 40 is performed at the rear flange portion 42b of the disk 40, the front flange portion 42a, which is the design surface, is less likely to be affected by heat during welding. It can be plated and painted on its own, and can be manufactured economically at a low price. Furthermore, since mud and water hardly accumulate on the back side of the rim bead seat portion 30b, vibration due to improper wheel balance can be prevented. Further, since the drain hole 43 is provided in the radially outermost portion of the rim flange portion 42 of the disk 40, water does not accumulate inside the flange portion.

The operation unique to each embodiment of the present invention is as follows. In the two-piece full design wheel according to the first embodiment of the present invention, the rim bead seat portion 3 on the flangeless side is used.
0b on the back flange end 42c of the disc 40
And the two are welded together, so that simple and reliable welding is possible.

In the two-piece full design wheel according to the second embodiment of the present invention, the rim bead seat 3 on the flangeless side is provided.
Since the end of Ob is extended to the vicinity of the front flange portion 42a and the rim bead seat portion and the rear flange portion 42b of the disk 40 are welded, the rigidity of the assembled portion can be increased.

In the two-piece full design wheel according to the third embodiment of the present invention, the rim bead seat 3 on the flangeless side is provided.
Since the end portion of Ob is welded to the back flange portion 42b of the disk 40 while being in contact with the end portion of the disk 40, manufacture is easy.

In the two-piece full design wheel according to the fourth embodiment of the present invention, a bead seat flange portion 30h bent inward in the radial direction of the wheel is formed at the end of the rim bead seat portion 30b on the flangeless side. Since the bead seat flange portion 30h and the back side flange portion 42b are welded and joined, the bent bead seat flange portion 30h plays a role of a groove shape, so that penetration of the weld portion can be ensured and weldability is improved. Can be done.

In the two-piece full design wheel according to the fifth embodiment of the present invention, the rim bead seat 3 on the flangeless side is provided.
Since the bead seat stepped portion 30f which falls inward in the radial direction of the wheel is provided at the end of 0b, the stepped portion serves as a semi-groove and the weldability can be improved. In the two-piece full design wheel according to the sixth embodiment of the present invention, a bead seat rising portion 30g which is continuous with the rim bead seat portion 30b on the flangeless side and rises outward in the radial direction of the rim is formed, and the bead seat rising portion 30g is formed. Since the ends are butt-welded to the ends of the back side flange portion 42b, the formation of the back side flange portion 42b can be facilitated.

[0020]

According to the two-piece full design wheel of the first aspect, the rim flange-shaped portion of the disk is curled from the front side to the rear side of the disk, so that the back side flange has an axial gap with the front side flange portion. Since it is constituted by the portion, the area of the radially outer portion of the disk is widened and no shadow is formed, so that the design can be improved. In addition, since the rim and the disk are welded between the rear flange portion, which is remote from the front flange portion of the disk, and the rim bead seat portion on the flangeless side, the front flange portion, which is the design surface, is heated during welding. Since it is not easily affected, it does not cause welding burns, and can be plated or painted on a single disk, and can be manufactured at low cost. Furthermore, since the mud and water hardly clog on the back side of the rim bead seat portion, vibration due to improper wheel balance can be prevented. According to the two-piece full design wheel of the second aspect, the same effect as that of the first aspect can be obtained. In the two-piece full design wheel according to the third aspect, the rim bead seat portion and the rear flange portion of the disc are welded to each other while the end portion of the rim bead seat is extended to near the front flange portion of the disc. The rigidity can be improved. In the two-piece full design wheel according to the fourth aspect, the rim bead seat portion and the disc back side flange portion are welded to each other while the rim bead seat end portion is in contact with the disc back side flange portion, so that manufacture is easy. In the two-piece full design wheel of claim 5, a bead seat flange is formed at the end of the rim bead seat and bent inward in the radial direction of the wheel, and the bead seat flange and the disc back side flange are welded to each other. Therefore, the rigidity of the assembly structure can be increased, and the bent bead seat flange portion plays a role of a groove shape, so that the welded joint can be reliably melted and weldability can be improved. In the two-piece full design wheel according to the sixth aspect, since the bead seat stepped portion which falls inward in the radial direction of the wheel is provided at the end of the rim bead seat, the stepped portion increases rigidity and serves as a semi-groove. Therefore, weldability can be improved. 8. The two-piece full design wheel according to claim 7, further comprising a rim having a rim flange portion at the other end, wherein the rim has a bead seat rising portion which is continuous with a flangeless rim bead seat portion and rises radially outward of the rim. Abut the end of the rear flange portion and the end of the bead seat rising portion,
Since both are welded, the back flange portion of the disk can be short, and a curled portion can be easily formed. Claim 8
In the two-piece full design wheel described above, since a plurality of drain holes are provided in the radially outermost portion of the rim flange-shaped portion of the disc, water does not accumulate inside the flange-shaped portion.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a two-piece full design wheel according to all embodiments of the present invention.

FIG. 2 is a sectional view of a two-piece full design wheel according to the first embodiment of the present invention.

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

FIG. 4 is a sectional view of a two-piece full design wheel according to a third embodiment of the present invention.

FIG. 5 is a sectional view of a two-piece full design wheel according to a fourth embodiment of the present invention.

FIG. 6 is a sectional view of a two-piece full design wheel according to a fifth embodiment of the present invention.

FIG. 7 is a sectional view of a two-piece full design wheel according to a sixth embodiment of the present invention.

FIG. 8 is a sectional view showing the shape of a conventional automobile wheel.

FIG. 9 is a sectional view showing the shape of a conventional automobile wheel.

FIG. 10 is a sectional view of a conventional two-piece full design wheel.

[Explanation of symbols]

 Reference Signs List 30 rim 30a rim flange portion 30b rim bead seat portion 30f bead seat step portion 30g bead seat rising portion 30h bead seat flange portion 40 Disk 42 rim flange shape portion 42a front side flange portion 42b back side flange portion 43 drain hole

Claims (8)

[Claims] 1. A disc having an outer peripheral portion formed in the shape of a rim flange portion, a rim having a flangeless rim bead seat portion at one end and a rim flange portion at the other end, wherein the rim flange portion of the disc is provided. And the rim bead seat portion is welded to the two-piece full design wheel, wherein the rim flange portion of the disc is curled from the front side to the back side of the disc, thereby comprising a front side flange portion and a back side flange portion. A two-piece full-design wheel. 2. A flangeless rim bead seat portion and a disc backside flange portion are welded to each other with the disc backside flange end portion superposed on the flangeless side rim bead seat end portion. The two-piece full design wheel according to claim 1. 3. A flange-less rim bead seat portion is overlapped on a flange-less rim bead seat portion, and the flange-less rim bead seat end portion is extended to near the back side of the front flange portion. The two-piece full design wheel according to claim 1, wherein the side rim bead seat portion and the disc back side flange portion are welded and joined. 4. The flangeless rim bead seat portion and the disk backside flange portion are welded to each other with the flangeless side rim bead seat end contacting the disk backside flange portion. Item 2. A two-piece full design wheel according to item 1. 5. A bead seat flange which is bent inward in a radial direction of a rim is formed at an end of a rim bead seat on a flangeless side, and the bead seat flange and a disc back side flange are welded to each other. The two-piece full design wheel according to claim 1, wherein 6. A rim bead seat end portion is formed with a bead seat step portion which falls inward in the radial direction of the rim,
The two-piece full design wheel according to claim 1, wherein the step portion and the disk back side flange portion are welded and joined. 7. An outer peripheral portion of a disk is formed in a shape of a rim flange portion, and the rim flange portion is formed by a front side flange portion and a back side flange portion by being curled from the front side to the back side of the disk. A disc, a rim having a bead seat rising portion that is connected to a flangeless rim bead seat portion at one end and rises outward in the radial direction of the rim, and a rim having a rim flange portion at the other end; Part end and the end of the bead seat rising portion in the radial direction,
A two-piece full design wheel characterized by welding both. 8. The disk according to claim 1, wherein a plurality of drain holes are provided in a radially outermost portion of a rim flange portion of the disk. A two-piece full design wheel according to claim 5, or 6, or 7.