JPH09118101A - Wheel for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To replace a rim on which a tire having width different from that of a disc by making the rim and the disc attachable and detachable. SOLUTION: A disc is provided with a structure in which a disc main body 2 and a disc outer peripheral body 3 are separated from each other, the outer peripheral edge of the disc outer peripheral body 3 is fixed to the front part on the inner peripheral surface of the rim 1 by welding, and the tips of spoke parts 23 of the disk main body 2 are fixed on the inner peripheral edge of the disc outer peripheral body 3 by bolts 4 and nuts 9 so as to be detachable. The bolts and the nuts are detached, a rim on which a tire having the width different from that of the rim 1 is fixed to the disc main body 2 by the bolts and the nuts through the disc outer peripheral body attached on the inner peripheral surface by welding, and replacement of the rim is performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved structure for an automobile two-piece wheel in which a rim and a separately molded disc are joined together.

[0002]

2. Description of the Related Art Conventionally, a two-piece automobile wheel in which a rim and a disc are separately molded from a light alloy such as an aluminum alloy, and the outer peripheral edge of the disc is integrally fixed to the inner peripheral surface of the front portion of the rim by welding. Is widely known. For example, as described in JP-A-55-123501, the outer peripheral edge of a disk having a boss portion having a bubbling hole formed at the center is integrated with the inner peripheral surface of the well portion of the rim by welding. The following wheels are commonly used. In this wheel, the outer peripheral portion of the disc is curved rearward in a convex arc shape, and the outer peripheral edge thereof is provided on the front end side of the well portion with the front surface of the disc positioned on the front end flange portion side of the rim. The inner diameter and the depth of the rim are effectively utilized by welding to the enlarged diameter stepped portion so that the arrangement of the brake drum is not hindered.

[0003]

However, in such a wheel, since the rim and the disc are integrally welded and cannot be separated from each other, a rim corresponding to the type of tire to be mounted is previously prepared. It is necessary to make a wheel consisting of a disc and a disk. That is, tires include on-road tires, snow tires, dry tires for skids, rain tires, and the like. Since these tires have different widths, a disc is integrated with a rim having a width corresponding to the tire width. The wheel had to be prepared, and when mounting different kinds of tires on the vehicle body, it was impossible to replace only the rim corresponding to the tire size, and the entire wheel had to be replaced.

Therefore, there is a problem that not only is it uneconomical, but the appearance of the disk that matches the vehicle is different due to the replacement of the wheels, and the design is not satisfactory. Also, it is not possible to replace only the disc part, which is not very elegant. The present invention has been made in view of the above problems, and when different kinds of tires having different widths are to be mounted, the main portion of the disc can be kept in its entirety by simply replacing the rim portion corresponding to the tire size. The purpose is to provide a vehicle wheel that can be used.

[0005]

In order to achieve the above object, an automobile wheel of the present invention is a wheel comprising a rim and a disc fixed to an inner peripheral surface of the rim, wherein the disc is a center. A disk main body in which a plurality of spoke portions are radially provided from a boss portion provided with a hub hole toward the outer periphery, and a disc disposed between the outer periphery of the disc main body and the inner peripheral surface of the rim. The outer end of each of the above-mentioned spout parts mainly composed of a disc is detachably fixed to the inner peripheral edge of the disc outer peripheral body by bolts, and the outer peripheral edge of the disc outer peripheral body is fixed to the inner peripheral surface of the rim. The structure is composed of

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION A wheel composed of a rim and a disk can be manufactured by casting from a light alloy,
The rim is manufactured so that the entire shape is integrated and the disk is divided into a disk main body and a disk outer peripheral body. The disc main body has a shape in which a plurality of spokes are radially provided from a boss portion having a hub hole, while the disc outer peripheral body has a peripheral wall portion that is inclined outward from the outer peripheral end of the disc main body toward the rear. The rear end large diameter peripheral portion is fixed to the inner peripheral surface of the front end of the well portion of the rim by welding. Further, projecting piece portions having the same width as the outer end portions of the spoke portions mainly of the disc are provided at a plurality of inner peripheral surfaces of the front end peripheral portion of the disc outer peripheral body integrated with the rim. The outer ends of the spokes, which mainly consist of the disc, are superposed on each other and are detachably fixed with bolts.

Therefore, by removing the bolt integrally connecting the disc main body and the rim via the disc outer peripheral body, another rim having a different rim width is attached to the disc main body via the disc outer peripheral body. It is also possible to replace the disc main body connected to the rim on which the tire is mounted with a disc main body having a different appearance and having the same diameter.

Further, the main body of the disk and the outer peripheral body of the disk are bolted to form a through hole between the adjacent spoke portions, and a plurality of heat dissipation holes are provided on the peripheral wall of the outer peripheral body of the disk, whereby the brake is formed. The drum can be cooled effectively. Further, a cover is placed on the front surface of the outer peripheral body of the disc, and the inner peripheral portion of the cover is attached to the disc by the above-mentioned bolt with a gap left between the outer peripheral edge of the cover and the inner peripheral surface of the front flange portion of the rim. By detachably attaching to the disk, a variety of appearance variations can be configured together with the disk main body, and a wheel with various changes can be provided.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A concrete embodiment of the present invention will be described with reference to the drawings. A wheel is formed by a combination of a rim 1 and a disk divided into a disk main body 2 and a disk outer peripheral body 3. The rims and discs are cast products made of light alloy materials such as aluminum alloys and magnesium alloys, but may be forged products or other processed products in some cases.

The rim 1 has well portions formed in a front side well portion 11 having a narrow width and a rear side well portion 12 having a wide width, and a first portion is provided at a connecting portion between these front and rear well portions 11, 12. Step 13
Is provided so that the inner diameter of the front well portion 11 is larger than that of the rear well portion 12 via the first step portion 13. In addition,
The inner peripheral surfaces of the front and rear well portions 11 and 12 are formed parallel to the axial direction of the rim 1. Further, the inner diameter of the front well portion 11 is larger than that of the front well portion 11 via the second step portion 14 that bulges in the outer diameter direction, and the angle is gentle toward the front in the outer diameter direction. Sloping subledger section 15
And the front beat sheet portion 16 are sequentially formed, and a front flange portion 17 is formed at the front end of the front beat sheet portion 16. A rear beat sheet portion 18 and a rear flange portion 19 are sequentially formed at the rear end of the rear well portion 12.

The disc main body 2 is provided with a plurality of spoke portions 23 radially outwardly at regular intervals in the circumferential direction on the outer periphery of a boss portion 22 having a hub hole 21 at the center. Around the hub hole 21, a plurality of bolt insertion holes 24 are formed so as to surround the hub hole 21. Spokes 23 are bosses
The outer peripheral surface of 22 is projected from the front side to be gently curved in the outer diameter direction, and is formed in a taper shape from the boss portion 22 toward the outer end which is the protruding end. Part 22
The side is a concave arc surface and is formed in a straight surface from the concave arc surface toward the outer end.

Further, a step surface portion 26 reaching about half the wall thickness is formed on the front surface side of the outer end portion of each spoke portion 23, and the base portion of the bolt 4 is fixed to the step surface portion 26 in an embedded state. , The front portion of the bolt 4 is projected forward. The outer diameter of the central disk body 2, that is, the diameter of an imaginary circle that is in contact with the tip of each spoke 23 around the hub hole 21 is
It is formed to have a smaller diameter than the inner diameter of the rim 1. In addition,
The bolt 4 may be provided with an insertion locking hole in the step portion 26 without fixing the base portion to the step portion 26, and the bolt 4 may be inserted into the hole from the rear surface side.

The disc outer peripheral body 3 which constitutes a disc of a wheel together with the disc main body 2 has an annular inclined peripheral wall portion 31 whose diameter is gradually reduced from the circular edge portion 32 at the rear end toward the front end. The front surface of the peripheral wall portion 31 bent in the inner diameter direction through the convex arc-shaped curved wall surface 33 is the disc main body 2
A flat wall that is flush with the front surface of the spokes 23
The inner peripheral surface of the wall portion 34 is formed into a circular edge portion 35 having a diameter smaller than that of the circular edge portion 32 on the rear end side.
Further, on the inner peripheral surface of the circular edge portion 35, each of the spoke portions 23
Corresponding to the above, a plurality of projecting piece portions 36 having the same width as the spoke portion 23 are provided to project in the inner diameter direction, and each projecting piece portion 36 is provided at the outer end of the spoke portion 23 of the disc main body 2. An insertion hole 37 for the bolt 4 is formed.

Further, a step surface portion 38 which overlaps with the step surface portion 26 of the spoke portion 23 is cut out on the rear surface side of the projecting piece portion 36, while the rear end circular edge portion 32 of the peripheral wall portion 31 is formed with the above mentioned. A notch portion having an L-shaped cross section that is engaged and closely fixed integrally by welding 5 from the inner peripheral surface of the front end portion of the front side well portion 11 of the rim 1 to the second step portion 14 continuous to the front side well portion 11. 39 are formed.

Both end surfaces of the projecting piece portion 36 are formed as concave arc-shaped curved side end surfaces 40, and when the disc main body 2 and the disc outer peripheral body 3 are combined, the curved side end surfaces 40 of the spoke portions 23 are formed. Spokes 2 adjacent to both sides 25
The hole surrounded by the space between 3 and 23 and the protrusions 36, 36
Are formed. Reference numeral 6 denotes a plurality of heat radiation holes penetrating between the front and rear surfaces provided in the circumferential wall portion 31 at regular intervals in the circumferential direction, and the shape thereof is formed in a square shape in the drawing. It may be formed in a desired shape such as a triangular shape or another polygonal shape, a circular shape, an oval shape, or the like.

Reference numeral 7 denotes a front donut-shaped cover which is mounted on the front surface of the disk outer peripheral body 3 so as to cover the disk outer peripheral body 3, and is a front donut-shaped cover made of a metal plate or a hard synthetic resin plate having an inner peripheral diameter of the disk. The outer peripheral body 3 is formed to have the same diameter as the small-diameter edge portion 35 on the front end side, and its outer diameter is formed to be smaller than the inner diameter of the front-side flange portion 17 of the rim 1, and the front-side flange portion 17 and this cover 7 are formed. Gaps 8 are formed between the outer peripheral edge and the outer peripheral edge of the disk, and the projecting piece has the same shape as the projecting piece 36 projecting from the small-diameter edge portion 35 of the disk outer peripheral body 3 at a plurality of positions on the inner peripheral surface. A projecting piece 71 that overlaps the portion 36 is provided so as to project in the inner diameter direction, and each of the projecting pieces 71 has an insertion hole 72 for the bolt 4 described above.
Has been drilled.

With the above construction, in order to assemble the wheel with the rim 1, the disc main body 2, the disc outer peripheral body 3 and the cover 4, the disc outer peripheral body 3 is inserted from the front end opening side of the rim 1 and the notch thereof is formed. The portion 39 is abutted and engaged from the inner peripheral surface of the front end portion of the front side well portion 11 of the rim 1 to the second step portion 14 connected to the front side well portion 11, and the rear end circular edge portion 32 of the disk outer peripheral body 3 is brought into contact. Are welded to the inner peripheral surface of the rim 1 so as to be integrally fixed.

On the other hand, the step surface portions 26 formed on the outer ends of the spokes 23 of the disk main body 2 are superposed in the engaged state on the step surface portions 38 of the respective projecting piece portions 36 of the disk outer peripheral body 3 in the engaged state.
The bolt 4 projecting on the 26 is inserted into the insertion hole 37 formed on the projecting piece 36, and the cover 7 is superposed on the front surface of the disk outer peripheral body 3 to form the inner peripheral part thereof. Protruding piece
After the bolts 4 are also inserted into the insertion holes 72 formed in the 71, the nuts 9 are screwed into the bolts 4 and the disk outer peripheral body 3
To form a disk in which the disk main body 2 is integrally fixed.

Disk main body 2 with respect to disk outer peripheral body 3
The bolt 4 may be fixed by welding the disk outer peripheral body 3 to the rim 1 by welding, or the disk main body 2 and the disk outer peripheral body 3 may be integrally fixed by the bolt 4 and then the disk outer peripheral body. 3 may be fixed to the rim 1 by welding. Further, the cover 7 does not necessarily have to be attached.

The wheel produced in this way has a rim 1
After mounting a tire corresponding to the rim width on the rim, the tire is mounted on a hub shaft of an automobile and used. However, when a different type of tire that cannot be attached to the rim 1 is used in the automobile, a disc is used. After removing the nut 9 that secures the main body 2 and the disk outer peripheral body 3 from the bolt 4, remove the rim 1 on which the tire is mounted together with the disk outer peripheral body 3, and then mount the disc main body 2 on the hub axle.
The rim on which different kinds of tires are mounted is attached to the disk main body 2 with bolts 4 for replacement.

That is, on the inner peripheral surface of the rim, there is provided the disk outer peripheral body 3 which is fixed by welding in the same manner as described above, and the step surface portion 38 of the projecting piece 36 of the disk outer peripheral body 3 is provided.
Is engaged with a step surface portion 26 formed on the outer end of each spoke portion 23 of the disc main body 2 and the bolt 4 protruding from the step surface portion 26 is inserted into an insertion hole 37 formed in the projecting piece portion 36. Then, the nut 9 is screwed into each bolt 4.

When it is desired to replace the disk main body 2 with another disk main body having the same spoke length but different shape, the disk main body 2 is mounted together with the rim 1 on which the tire is mounted.
Is removed from the axle of the automobile, the disk main body 2 is separated from the rim 1 to which the disk outer peripheral body 3 is fixed by removing the bolt 4, and then another disk main body is attached to the disk outer peripheral body 3 in the same manner as described above. It may be connected and fixed by.

The disk main body 2 and the disk outer peripheral body 3 are
By making several or more things with different appearances and shapes and combining them with one another, it is possible to use them in a variety of ways as described above. In this case, the number and length of the spoke portions 23 of the disc main body 2 and the bolt mounting portion provided on the inner peripheral edge portion of the disc outer peripheral body 3 may be associated with each other.

[0024]

As described above, according to the vehicle wheel of the present invention, the disk main body is provided with a plurality of spokes radially provided from the boss having the hub hole at the center toward the outer circumference. It consists of a disk outer peripheral body arranged between the outer circumference of the disk main body and the inner peripheral surface of the rim, and the outer ends of each of the above-mentioned spout parts of the disk main body are detachably fixed to the inner peripheral edge of the disk outer peripheral body by bolts. In addition, since the outer peripheral edge of the disc outer peripheral body is fixed to the inner peripheral surface of the rim, it is possible to remove the bolt that integrally connects the disc main body and the rim through the disc outer peripheral body. , Another rim having a different rim width can be attached to the disc main body through the disc outer peripheral body,
Therefore, it is possible to mount tires such as on-road tires having different tire widths, snow tires, dry tires for surfing, rain tires, etc. according to the purpose of use mainly on this disc by simply replacing the rim. Further, even for a rim on which a tire is mounted, it is possible to replace the disk main body connected to the rim with a disk main body having a different appearance and having the same diameter, so that a wheel having a different appearance can be easily obtained. Is something that can be done.

Further, by connecting the disc main body and the disc outer peripheral body with bolts, a through hole is formed between the adjacent spoke portions, and a plurality of heat radiating holes are provided in the peripheral wall of the disc outer peripheral body, whereby the brake is formed. The drum can be cooled effectively. Further, a cover is placed on the front surface of the outer peripheral body of the disc, and the inner peripheral portion of the cover is attached to the disc by the above-mentioned bolt with a gap left between the outer peripheral edge of the cover and the inner peripheral surface of the front flange portion of the rim. By detachably attaching to the disk, various external variations can be configured with the disk
It is possible to provide a variety of wheels.

[Brief description of the drawings]

FIG. 1 is a divided perspective view of a wheel,

FIG. 2 is a vertical sectional side view of the assembled wheel,

FIG. 3 is a front view thereof.

[Explanation of symbols]

 1 rim 11 front well part 14 second step part 2 disk main body 21 hub hole 22 boss part 23 spoke part 24 bolt insertion hole 3 disk outer peripheral body 31 peripheral wall part 36 projecting piece part 37 bolt insertion hole 4 bolt 5 welded part 6 heat dissipation hole 7 cover

Claims (4)

[Claims] 1. A wheel comprising a rim and a disc fixed to an inner peripheral surface of the rim, wherein the disc has a plurality of spoke portions from a boss portion having a hub hole at the center toward an outer peripheral direction. It is composed of a disc main body radially provided and a disc outer peripheral body arranged between the outer periphery of the disc main body and the inner peripheral surface of the rim. An automobile wheel characterized in that it is detachably fixed to the inner peripheral edge of the disk by a bolt and the outer peripheral edge of the disk outer peripheral body is fixed to the inner peripheral surface of the rim. 2. The disk outer peripheral body has an annular peripheral wall portion that is inclined outward from the outer peripheral end of the disk main body obliquely rearward, and the inner peripheral surface of the small-diameter edge portion of the front end portion of the peripheral wall portion. Projecting pieces having the same width as the outer ends of the disc-based spokes are provided at a plurality of positions, and the outer ends of the disc-based spokes are superposed on the projecting pieces and detachably fixed by bolts. A through hole is formed in the space surrounded by the spoke and the protruding piece that are adjacent to each other, and the large-diameter edge at the rear end of the peripheral wall is located within the front end of the well of the rim. The vehicle wheel according to claim 1, wherein the wheel is fixed to the peripheral surface by welding. 3. The automobile wheel according to claim 1, wherein a plurality of heat dissipation holes are provided in the peripheral wall of the disk outer peripheral body. 4. A front donut-shaped cover is superposed on the front surface of the disk outer peripheral body, and an inner peripheral surface of the cover is provided with a gap between the outer peripheral edge of the cover and the inner peripheral surface of the front flange portion of the rim. The peripheral portion is attached to the disk by the bolt, and the peripheral portion is attached to the disk.
The described vehicle wheel.