JP2010095104A - Vehicle wheel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle wheel enabling improvement in mass productivity. <P>SOLUTION: A first vertical wall 22a extending in the peripheral direction and a second vertical wall 22b opposed to the first vertical wall 22a and integrally formed with the rim 14, are arranged on an outer peripheral surface 21 of a well part 14c of a wheel body 17 formed of an iron material. A sub-air chamber member 18 is composed of a resin material, and has a sub-air chamber 40 inside. Both edges are locked between the first vertical wall 22a and the second vertical wall 22b by being fitted between the first vertical wall 22a and the second vertical wall 22b. The first vertical wall 22a is composed of a flange member formed separately from the wheel body 17, and is welded and fixed to the outer peripheral surface 21 of the well part 14c. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle wheel that reduces noise associated with air column resonance (cavity resonance) in a tire air chamber.

  In general, it is known that air column resonance generated in a tire air chamber (hereinafter referred to as “tire air chamber”) causes road noise of an automobile. The air column resonance is a phenomenon in which random vibration transmitted from the road surface to the tire vibrates the air in the tire air chamber, and as a result, a resonance phenomenon occurs near the air column resonance frequency of the tire air chamber and a resonance sound is generated. Say.

For example, Patent Document 1 discloses a vehicle wheel for reducing noise associated with air column resonance. The vehicle wheel has a plurality of auxiliary air chambers along the circumferential direction of the rim. More specifically, this vehicle wheel is formed between an annular vertical wall standing on the well portion so as to extend in the circumferential direction of the rim and a rising side wall of the well portion facing the bead seat portion side. The annular space portion is closed with a lid member. Each sub air chamber is formed by partitioning a space portion defined by the lid member, the well portion, and the vertical wall with a plurality of partition walls arranged at predetermined intervals in the circumferential direction. Further, the tire air chamber and each sub air chamber communicate with each other through a communication hole formed in the lid member. According to this vehicle wheel, the communication hole and the auxiliary air chamber constitute a Helmholtz resonator, and air column resonance noise in the tire air chamber can be reduced.
Japanese Patent No. 3992566

  However, the vehicle wheel according to the prior art disclosed in Patent Document 1 cannot be said to have a realistic structure. That is, it is necessary to join a plurality of partition walls and a lid member to a wheel formed with a vertical wall so as to rise from the well portion, with high accuracy by welding, bonding, fitting, and fastening while maintaining airtightness. In view of ensuring the performance and increasing the number of manufacturing steps and manufacturing cost, there is a problem that it is not suitable for mass production.

  This invention is made | formed in view of the said point, and it aims at providing the vehicle wheel which can improve mass-productivity.

  In order to achieve the above object, the present invention provides a vehicle wheel for fixing a sub air chamber member on an outer peripheral surface of a well portion in a tire air chamber, the wheel main body formed of an iron material, and the wheel A first vertical wall rising radially outward from the outer peripheral surface of the well portion of the main body and extending along the circumferential direction of the outer peripheral surface, and provided in the well portion of the wheel main body so as to face the first vertical wall The sub-air chamber member is made of a resin material, and has a sub-air chamber formed therein, and a communication hole for communicating the sub-air chamber and the tire air chamber. In addition, both end portions are fitted between the first vertical wall and the second vertical wall, and both end portions are locked between the first vertical wall and the second vertical wall, and the first vertical wall or the first vertical wall At least one of the two vertical walls is fixed to the outer peripheral surface of the well portion by welding. And wherein the door.

  According to the present invention, as in a conventional vehicle wheel (see, for example, Patent Document 1), a plurality of partition walls and lid members are sequentially assembled to a rim, and these are combined with high accuracy while considering airtightness. Unlike what forms the chamber, the auxiliary air chamber member having the auxiliary air chamber is manufactured by simply fitting it into the outer peripheral surface of the rim using elasticity. Therefore, in this invention, compared with the conventional vehicle wheel (for example, refer patent document 1), a manufacturing man-hour and manufacturing cost can be reduced and mass productivity can be improved.

  According to the present invention, the wheel main body is formed of an iron material, and at least one of the first vertical wall and the second vertical wall made of a metal member formed separately from the wheel main body is attached to the well. For example, by welding the outer peripheral surface of the portion by spot welding or the like, the metal member can be easily and firmly welded (fixed), and mass productivity can be further improved.

  For example, compared with the case where either the first vertical wall or the second vertical wall is formed integrally with the wheel body by casting or forging using a mold (not shown), the present invention forms the vertical wall. Since it is not necessary to simplify the cavity shape of the mold, the wheel body can be easily manufactured.

  Further, according to the present invention, the first vertical wall and the second vertical wall are each formed with a groove portion extending along the circumferential direction, and both end portions of the auxiliary air chamber member are fitted into the respective groove portions. It is good to provide so that it may be locked. Alternatively, the auxiliary air chamber member includes a main body portion having the auxiliary air chamber, and a plate-like edge portion extending from the main body portion to the periphery, and the edge portions are formed on the first vertical wall and the second vertical wall, respectively. It is good to provide so that it may be fitted and latched in the groove part made.

  In this way, the auxiliary air chamber member made of a resin material is fixed by being fitted in the grooves provided in the first vertical wall and the second vertical wall, respectively, and the auxiliary air chamber member has spring elasticity. Therefore, it is simply and firmly fixed between the first vertical wall and the second vertical wall.

  According to the present invention, by fixing at least one of the first vertical wall and the second vertical wall to the outer peripheral surface of the well portion by welding, the mass productivity can be improved without increasing the manufacturing cost. A possible vehicle wheel can be obtained.

  Next, embodiments of the present invention will be described in detail with reference to the drawings as appropriate. FIG. 1 is a perspective view of a vehicle wheel according to an embodiment of the present invention, FIG. 2 is an enlarged longitudinal sectional view of a main part of a wheel in which a tire is mounted on the vehicle wheel of FIG. 1, and FIG. FIG. 3B is a partially cutaway perspective view of a vehicle wheel including a first vertical wall welded to the outer peripheral surface of the well portion. It is.

  First, after describing the overall configuration of the vehicle wheel, the configuration of the auxiliary air chamber member will be described. As shown in FIG. 1, a vehicle wheel 10 according to an embodiment of the present invention includes a rim 14 for mounting a tire 12 (see FIG. 2) and a disk 16 for connecting the rim 14 to a hub (not shown). The wheel main body 17 is made of an iron material, and the auxiliary air chamber member 18 is elastically deformed and attached to the outer peripheral surface of the rim 14.

  As shown in FIG. 2, the rim 14 includes a bead sheet portion 14a formed at both ends in the width direction, a rim flange portion 14b formed by bending outward from the bead sheet portion 14a, A well portion 14c is formed between the bead sheets 14a and 14a so as to be recessed inward in the radial direction.

  A bead portion 12a of the tire 12 is attached to the bead seat portion 14a. As a result, a tire air chamber 20 formed of an annular sealed space is formed between the rim 14 and the inner peripheral surface of the tire 12.

  The well portion 14 c is provided to drop the bead portion 12 a of the tire 12 when the tire 12 is assembled to the rim 14. A first vertical wall 22a and a second vertical wall 22b are provided on the outer peripheral surface 21 of the well portion 14c.

  As shown in FIG. 3, the first vertical wall 22 a has a first vertical wall surface 24 a that rises radially outward from the outer peripheral surface 21 of the well portion 14 c, and is made of a metal that is formed separately from the wheel body 17. The flange member is formed. The flange member is welded and fixed to the outer peripheral surface 21 of the well portion 14c, for example, by spot welding or seam welding. And the said 1st vertical wall 22a is spaced apart by predetermined spacing along the circumferential direction of the outer peripheral surface 21, and is arrange | positioned substantially cyclic | annular (refer FIG. 4).

  The flange member constituting the first vertical wall 22a has a substantially L-shaped vertical cross section, and is curved along the outer peripheral surface 21 of the well portion 14c. In this case, as shown in FIG. 3A, the flange member includes a flat belt-like bottom portion 26a formed with a nugget (not shown) and welded (fixed) to the outer peripheral surface 21 of the well portion 14c, and the bottom portion. A side portion 26b that rises substantially perpendicularly outward from the radial direction 26a, and a protrusion that slightly protrudes in the substantially horizontal direction from the upper end of the side portion 26b toward the second vertical wall 22b along the width direction of the well portion 14c. It is comprised from the stop part 26c.

  Further, a second vertical wall 22b formed integrally with the wheel body 17 (rim 14) is provided on the inner side in the width direction of the well portion 14c, and the first vertical wall surface 24a and the second vertical wall 22b are provided on the second vertical wall 22b. Opposing second vertical wall surfaces 24b are provided.

  A groove 28 is formed in each of the first vertical wall surface 24a (first vertical wall 22a) and the second vertical wall surface 24b (second vertical wall 22b). The groove portion 28 of the first vertical wall 22a is formed along the longitudinal direction of the flange member by the locking portion 26c, while the groove portion 28 of the second vertical wall 22b is formed in the circumferential direction of the outer peripheral surface 21 of the well portion 14c. It is formed by an annular groove along. An edge 30 of the auxiliary air chamber member 18 to be described later is fitted into these grooves 28.

  Further, as shown in FIG. 3B, a notch 32 is formed at a substantially central portion along the circumferential direction of the first vertical wall 22a. The notch 32 has a function of preventing rotation of the auxiliary air chamber member 18 in the circumferential direction by fitting a protrusion 34 (tube member) of the auxiliary air chamber member 18 to be described later and locking the protrusion 34. The one that operates. As shown in FIG. 4, the cutout portions 32 are provided at four locations spaced about 90 degrees along the circumferential direction in the entire wheel. In addition, the said notch part 32 is previously formed in the flange member which comprises the said 1st vertical wall 22a by cutting with the cutting device which is not shown in figure.

  As shown in FIG. 2, the disk 16 is continuously formed radially inward from the end of the rim 14 on the vehicle outer side. The rim 14 and the disk 16 constituting the wheel body 17 are made of an iron material such as stainless steel, for example.

  Next, the auxiliary air chamber member 18 will be described. 4 is a longitudinal sectional view in the radial direction of the vehicle wheel taken along line IV-IV in FIG. 2, FIG. 5 is a perspective view of the auxiliary air chamber member, and FIG. 6A is a view of the first vertical wall. FIG. 6B is a partially cutaway perspective view showing the protruding portion of the auxiliary air chamber member that is locked to the notch, and FIG. 6B is a longitudinal sectional view of the auxiliary air chamber member taken along line VI-VI in FIG. .

  As shown in FIGS. 4 and 5, the auxiliary air chamber members 18 are members arranged along the circumferential direction of the well portion 14 c, and four sub-air chamber members 18 are arranged at substantially equal intervals along the circumferential surface of the well portion 14 c. Has been placed. That is, the vehicle wheel 10 according to the present embodiment includes two sets of a pair of auxiliary air chamber members 18 that face each other with the center of the rim 14 (hereinafter referred to as the rim center) interposed therebetween. The number of sub air chamber members 18 is preferably four, but may be three or two.

  A sub air chamber 40 is formed inside the sub air chamber member 18 along the longitudinal direction. As shown in FIG. 3A, the auxiliary air chamber 40 has a longitudinal section perpendicular to the longitudinal direction of the auxiliary air chamber member 18, along the width direction orthogonal to the longitudinal direction of the auxiliary air chamber member 18. It is formed in a substantially rectangular shape that gradually becomes thinner.

  The auxiliary air chamber member 18 is formed so as to extend along the outer peripheral surface of the well portion 14c (rim 14) and bend along the longitudinal direction. As shown in FIGS. 3A and 5, the auxiliary air chamber member 18 includes a main body portion 42 in which an auxiliary air chamber 40 is formed, and a plate extending from the main body portion 42 to the periphery thereof. Shaped edge 30. The thickness of the edge portion 30 is the same as or substantially the same as the thickness of the main body portion 42. In addition, the edge part 30 in this embodiment has spring property by determining the said thickness and the material mentioned later suitably.

  As shown in FIG. 3A, the auxiliary air chamber member 18 is fitted between the first vertical wall surface 24a and the second vertical wall surface 24b facing each other, and is on the outer peripheral surface 21 of the well portion 14c. It is fixed to. More specifically, the edge portion 30 extends to the first vertical wall surface 24a side and the second vertical wall surface 24b side and fits into each groove portion 28, and from the main body portion 42 to the outer peripheral surface 21 of the well portion 14c. It extends in the circumferential direction along. In this case, the auxiliary air chamber member 18 has both end edges 30a of the edge portion 30 extending from the main body portion 42 to the first vertical wall surface 24a side and the second vertical wall surface 24b side into the respective groove portions 28. It is locked between the first vertical wall 22a and the second vertical wall 22b.

  As shown in FIG. 3A, the auxiliary air chamber member 18 is curved so as to protrude toward the outer peripheral surface 21 of the well portion 14c between the both end edges 30a. That is, the bottom plate constituting the outer peripheral surface 21 side of the main body portion 42 and the edge portion 30 extending from the bottom plate are integrally formed. Incidentally, the auxiliary air chamber member 18 is formed of a resin material, and when the centrifugal force due to the rotation of the wheel is applied, the second vertical wall surface 24a and the second vertical wall member 24a try to reverse in the direction in which the curved portion is convex. It is provided so as to increase the pressing force of both end edges 30a against the vertical wall surface 24b.

  Further, as shown in FIG. 4, one side portion of the auxiliary air chamber member 18 is predetermined from the main body portion 42 in a direction intersecting with the rotation direction of the wheel (the wheel main body 17) (a direction orthogonal in the present embodiment). It has the protrusion part 34 which protrudes only long. The protrusion 34 is provided at a substantially central portion along the circumferential direction of the auxiliary air chamber member 18.

  As shown in FIG. 6A, the protruding portion 34 extends to the first vertical wall 22a side and fits into a cutout portion 32 formed substantially at the center along the circumferential direction of the first vertical wall 22a. The auxiliary air chamber member 18 has a rotation preventing function that prevents the auxiliary air chamber member 18 from being displaced along the circumferential direction of the well portion 14c. The protruding portion 34 is formed of a pipe member having an elliptical cross section, and inside the pipe member, as shown in FIG. 6B, the auxiliary air chamber 40 in the main body portion 42 and tire air are disposed. A communication hole 44 for communicating with the chamber 20 is formed.

  In addition, as shown in FIG. 4, each protrusion 34 of the auxiliary air chamber member 18 is arranged with a center angle (separation angle) of about 90 degrees along the circumferential direction from the rim center O. Good silencing efficiency can be obtained.

  The shape of the auxiliary air chamber 40 formed in the auxiliary air chamber member 18 is not particularly limited, but is preferably flat when viewed in cross section. Further, the volume of each auxiliary air chamber 40 is preferably about 50 to 250 cc, for example. By setting the volume of the sub air chamber 40 within this range, the sub air chamber member 18 achieves a weight reduction of the vehicle wheel 10 by suppressing an increase in weight while sufficiently exhibiting a silencing effect. be able to. Further, the length of the auxiliary air chamber member 18 along the circumferential direction is set to the same length as the circumferential length of the rim 14, and is appropriately determined in consideration of the adjustment of the weight of the vehicle wheel 10 and the assembling property to the well portion 14c. Set to

  The cross-sectional shape of the communication hole 44 is not particularly limited, and may be any of a circular shape, an elliptical shape, a polygonal shape, a tunnel shape, and the like. The diameter of the communication hole 44 is preferably 5 mm or more when the cross section is circular. The communication holes 44 having a cross-sectional shape other than a circle preferably have a diameter of 5 mm or more in terms of the cross-sectional area converted to a circle having the same cross-sectional area.

  The length of the communication hole may be set so as to satisfy the equation for obtaining the resonance frequency of the Helmholtz resonator shown in the following (Equation 1).

f ₀ = C / 2π × √ (S / V (L + α × √S)) (Expression 1)
However,
f ₀ (Hz): Resonance frequency C (m / s): Sound velocity in the auxiliary air chamber (= Sound velocity in the tire air chamber)
V (m ³ ): Volume of the auxiliary air chamber L (m): Length of the communication hole S (m ² ): Cross-sectional area of the opening of the communication hole α: Correction coefficient

The resonance frequency f ₀ (Hz) is matched with the resonance frequency of the tire air chamber 20. At this time, the resonance frequencies of the four sub air chamber members 18 may be set to be the same or different from each other. Specifically, when two resonance frequencies (f ₁ , f ₂ ) are recognized as the resonance frequencies of the tire air chamber 20, the resonance frequencies f ₀ of all the auxiliary air chamber members 18 are set to (f ₁ + f ₂ ) / 2 can be set respectively. It is also possible to set the resonance frequency f ₀ of the one sub air chamber member 18 which face each other across the rim center O to f _1, setting the resonance frequency f ₀ of the other sub air chamber member 18 to f ₂ .

  As a material of the sub air chamber member 18, for example, a resin material such as a synthetic resin is used. In view of various factors such as weight reduction of the auxiliary air chamber member 18, improvement of mass productivity, reduction of manufacturing cost, and securing of the airtightness of the auxiliary air chamber 40, a lightweight and highly rigid blow moldable material is preferable. Among these, polypropylene that is resistant to repeated bending fatigue is preferable.

  The vehicle wheel 10 according to the present embodiment is basically configured as described above. Next, the function and effect will be described.

  The vehicle wheel 10 according to the present embodiment is assembled with a plurality of partition walls and lid members sequentially on the rim as in a conventional vehicle wheel (see, for example, Patent Document 1), with high accuracy while considering airtightness. Unlike the case in which the sub air chamber is formed by combining them, the sub air chamber member 18 having the sub air chamber 40 is manufactured by simply fitting it into the outer peripheral surface 21 of the rim 14 using elasticity. .

  In addition, when the auxiliary air chamber member 18 that is formed in a longitudinal direction along the longitudinal direction is fitted (inserted) into the groove portion 28, the auxiliary air chamber member 18 is sequentially pressed toward the both ends from the center portion. The auxiliary air chamber member 18 may be inserted into the auxiliary air chamber member 18 evenly by using the curved jig (not shown) corresponding to the shape of the auxiliary air chamber member 18. Also good.

  Therefore, the vehicle wheel 10 according to the present embodiment can reduce manufacturing man-hours and manufacturing costs and improve mass productivity as compared with a conventional vehicle wheel (see, for example, Patent Document 1). it can. In addition, unlike the conventional vehicle wheel, the vehicle wheel 10 according to the present embodiment does not require special consideration for securing the airtightness of the auxiliary air chamber 40, so that the quality of the silencing performance is stabilized. Can be achieved.

  Further, in the vehicle wheel 10 according to the present embodiment, the wheel body 17 is formed of an iron material, and a metal flange member formed separately from the wheel body 17 is formed on the outer peripheral surface 21 of the well portion 14c, for example, By welding by spot welding or the like, the flange member can be easily and firmly welded (fixed), and the mass productivity can be further improved.

  For example, as compared with the case where the first vertical wall 22a is formed integrally with the wheel body 17 by casting or forging using a mold (not shown), in the present embodiment, the first vertical wall 22a is formed. Is eliminated, the cavity shape of the mold is simplified, and the wheel body 17 can be easily manufactured.

  Further, for example, the auxiliary air chamber member 18 used for an aluminum vehicle wheel (not shown) in which the first vertical wall 22a is provided integrally with the wheel body 17 is used as the vehicle wheel 10 according to the present embodiment. In addition, by using the auxiliary air chamber member 18 in common, the manufacturing cost can be reduced.

  Furthermore, the vehicle wheel 10 according to the present embodiment confirms and corrects the resonance frequency in the auxiliary air chamber member 18 itself before the auxiliary air chamber member 18 is fitted into the outer peripheral surface 21 of the rim 14 using elasticity. Therefore, the product yield in the auxiliary air chamber member 18 can be improved.

  Furthermore, in the vehicle wheel 10 according to the present embodiment, when the auxiliary air chamber member 18 made of a resin material is fixed to the rim 14 (well portion 14c), the end edge 30a is connected to the first vertical wall surface 24a and the second wall surface 24a. It is fixed by being fitted into a groove portion 28 provided in each of the vertical wall surfaces 24b. At that time, since the end edge 30a is made of resin and is thin and has spring elasticity, the auxiliary air chamber member 18 can be easily and between the first vertical wall surface 24a and the second vertical wall surface 24b. It is firmly fixed.

  Furthermore, in the vehicle wheel 10 according to the present embodiment, as shown in FIG. 6A, the protruding portion 34 of the auxiliary air chamber member 18 protruding in a direction intersecting with the rotation direction of the wheel has a first vertical length. Since it is provided so as to be fitted into the notch 32 of the wall 22a, it is possible to reliably prevent the auxiliary air chamber member 18 from rotating when the wheel rotates. In this case, since the communication hole 44 is formed inside the protrusion 34, it is not necessary to provide a member for forming the communication hole 44 separately from the protrusion 34. Further weight reduction can be achieved by simplifying the structure.

  A part of the upper wall (upper surface) of the main body 42 of the auxiliary air chamber member 18 constituting the auxiliary air chamber member 18 is cut out to form a hole (not shown) or upward from the upper wall. The communication hole 44 may be provided by a protrusion (not shown) that protrudes by a predetermined length toward the front.

  Next, a vehicle wheel 10a according to another embodiment of the present invention is shown in FIG. FIG. 7A is an enlarged vertical sectional view of the first vertical wall and the second vertical wall welded to the outer peripheral surface of the well portion, and FIG. 7B includes the first vertical wall and the second vertical wall. It is a partially broken perspective view of a vehicle wheel. The same components as those in the embodiment shown in FIG. 3 are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the vehicle wheel 10a according to the other embodiment, the second vertical wall 22b is configured by another flange member having a substantially symmetric shape (mirror shape) with the flange member of the first vertical wall 22a, and the other flange member Is different from the above-described embodiment in that it is welded and fixed to the outer peripheral surface 21 of the well portion 14c.

  In this case, the notch 32 into which the protruding portion 34 of the auxiliary air chamber member 18 is fitted is formed at the substantially central portion of the flange member of the first vertical wall 22a, whereas the second vertical wall 22b is configured. The other flange member is different in that the notch 32 is not formed.

  In the vehicle wheel 10a according to the other embodiment, both the first vertical wall 22a and the second vertical wall 22b are configured by flange members that are separate from the wheel body 17, and both flange members are formed on the well portion 14c. There exists an advantage which can be manufactured still more simply by welding to the outer peripheral surface 21, respectively.

1 is a perspective view of a vehicle wheel according to an embodiment of the present invention. FIG. 2 is an enlarged longitudinal sectional view of a main part of a wheel in which a tire is mounted on the vehicle wheel in FIG. 1. (A) is an enlarged vertical sectional view of the auxiliary air chamber member mounted on the outer peripheral surface of the well portion, and (b) is a vehicle wheel including a first vertical wall welded to the outer peripheral surface of the well portion. FIG. It is a longitudinal cross-sectional view of the radial direction of the vehicle wheel along the IV-IV line of FIG. It is a perspective view of the sub air chamber member. (A) is a partially broken perspective view showing the protrusion of the auxiliary air chamber member locked to the notch of the first vertical wall, and (b) is the auxiliary air along line VI-VI in FIG. It is a longitudinal cross-sectional view of a chamber member. (A) is the vehicle wheel which concerns on other embodiment of this invention, Comprising: The expanded longitudinal cross-sectional view of the 1st vertical wall and 2nd vertical wall which were welded to the outer peripheral surface of a well part, (b), It is a partially broken perspective view of the vehicle wheel including the first vertical wall and the second vertical wall.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10, 10a Vehicle wheel 14 Rim 17 Wheel main body 18 Sub air chamber member 20 Tire air chamber 21 Outer peripheral surface 22a 1st vertical wall 22b 2nd vertical wall 28 Groove part 30 Edge part 30a Edge 32 Notch part 34 Protrusion part 40 Secondary Air chamber 42 Body 44 Communication hole

Claims (3)

A vehicle wheel for fixing a sub air chamber member on an outer peripheral surface of a well portion in a tire air chamber,
A wheel body made of iron material;
A first vertical wall that rises radially outward from the outer peripheral surface of the well portion of the wheel body and extends along the circumferential direction of the outer peripheral surface;
A second vertical wall provided in a well portion of the wheel body so as to face the first vertical wall;
With
The sub air chamber member is made of a resin material, and has a sub air chamber formed therein, a communication hole for communicating the sub air chamber and the tire air chamber, and the first vertical wall and the It is fitted between the second vertical wall and both ends are locked between the first vertical wall and the second vertical wall,
At least one of the first vertical wall and the second vertical wall is fixed to the outer peripheral surface of the well portion by welding. The vehicle wheel according to claim 1,
Each of the first vertical wall and the second vertical wall is formed with a groove portion extending along the circumferential direction,
Both ends of the auxiliary air chamber member are fitted and locked in the grooves, respectively. The vehicle wheel according to claim 1,
The auxiliary air chamber member is
A main body having the auxiliary air chamber, and a plate-like edge extending around from the main body,
The vehicle wheel according to claim 1, wherein the edge is fitted and locked in a groove formed in each of the first vertical wall and the second vertical wall.

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