JPH0140721Y2 - - Google Patents
Info
- Publication number
- JPH0140721Y2 JPH0140721Y2 JP1981079966U JP7996681U JPH0140721Y2 JP H0140721 Y2 JPH0140721 Y2 JP H0140721Y2 JP 1981079966 U JP1981079966 U JP 1981079966U JP 7996681 U JP7996681 U JP 7996681U JP H0140721 Y2 JPH0140721 Y2 JP H0140721Y2
- Authority
- JP
- Japan
- Prior art keywords
- wheel
- hub
- bolt hole
- hub bolt
- automobile
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Description
【考案の詳細な説明】
本考案は自動車用車輪の改良に関するものであ
る。[Detailed Description of the Invention] The present invention relates to an improvement of an automobile wheel.
従来、走行中の自動車が停止しようとしてブレ
ーキをかけた時、車体が異常振動（以下ブレーキ
ジヤダー現象という）を起こし搭乗者に不快感を
与えていた。これは、自動車用車輪のハブ取付面
の平坦度、特にハブ取付面におけるハブボルト穴
のピツチ円より外周部の平坦度の影響が極めて大
きいためである。すなわち、従来の車輪はハブボ
ルト穴より外周部でかつ車輪の中心とハブボルト
穴中心を通る中心軸線をはさんで両側の２ケ所の
面でハブ面に接触するものであつたが、各ハブボ
ルト穴ごとにそれぞれ２ケ所ずつある接触面をす
べて均一に精度良く加工して平坦度を高めること
が極めて困難であり、上記平坦度が0.1ｍ／ｍを
越えると、自動車用車輪を自動車のハブに取付け
た際、車輪がハブ面に対して均一に締め付けられ
ず、10μ以下に加工されたブレーキドラムの真円
度が30μ以上に変形し、この真円度の変形により
ブレーキジヤダー現象が起つているものである。 Conventionally, when a running car applies the brakes to stop, the car body generates abnormal vibrations (hereinafter referred to as brake jitter phenomenon), which causes discomfort to passengers. This is because the flatness of the hub mounting surface of the automobile wheel, particularly the flatness of the outer peripheral portion of the hub mounting surface, has a much greater influence than the pitch circle of the hub bolt holes. In other words, conventional wheels contact the hub surface at two points on both sides of the center axis passing through the center of the wheel and the center of the hub bolt hole, at the outer periphery of the hub bolt hole. It is extremely difficult to uniformly and accurately process all contact surfaces, each with two locations, to increase the flatness. When the wheel is not tightened uniformly against the hub surface, the roundness of the brake drum, which was machined to a diameter of 10μ or less, is deformed to 30μ or more, and this deformation of the roundness causes the brake jadder phenomenon. It is.
このため、ブレーキドラムの変形を少なくする
ために、ブレーキドラムの肉厚を厚くしたり、車
輪のハブ取付面の平坦度を上げるために、特殊な
切削加工を施したりしているが、いずれも自動車
の重量増加を来たしたり、加工工数の増加を来た
すという欠点があつた。 For this reason, in order to reduce the deformation of the brake drum, the wall thickness of the brake drum is increased, and special cutting processes are applied to increase the flatness of the wheel hub mounting surface, but none of these methods work. This method has the disadvantages of increasing the weight of the automobile and increasing the number of processing steps.
本考案は上記欠点を除去するためになされたも
のであり、自動車に取付けた時、ブレーキジヤダ
ー現象を起さない自動車用車輪を提供するもので
ある。 The present invention has been devised to eliminate the above-mentioned drawbacks, and provides an automobile wheel that does not cause the brake jamder phenomenon when attached to an automobile.
以下、本考案の一実施例を図面に基づいて説明
する。 Hereinafter, one embodiment of the present invention will be described based on the drawings.
第１図に示すように、自動車用車輪１はリム２
にデイスク３を溶接により接合して形成されてい
る。上記のようにして形成された自動車用車輪１
において、第２図に示すように、そのデイスク３
の内側面のハブ取付面４に、突起６をハブボルト
穴５の周辺で、かつハブボルト穴５のピツチ円Ｐ
の直径と異なる直径を有する同心円D1上に２個、
D2上に１〜２個設けてなるものである。 As shown in FIG. 1, an automobile wheel 1 has a rim 2.
The disk 3 is joined to the disk 3 by welding. Automobile wheel 1 formed as described above
, as shown in Figure 2, the disk 3
The projection 6 is placed on the hub mounting surface 4 on the inner surface of the
2 pieces on a concentric circle D 1 with a diameter different from the diameter of
One or two pieces are provided on D2 .
第２図において、ハブボルト穴５の車輪外周側
の同心円D1および車輪内周側の同心円D2上に
夫々２個の突起６を設けているが、好ましくは、
少なくとも車輪外周側の同心円D1上で、車輪１
とハブボルト穴５の各中心を通る中心軸線をはさ
んだ対称位置に夫々１個の突起６を設けるとよ
い。この場合には同心円D2上の突起は省略する
ことも可能である。 In FIG. 2, two protrusions 6 are provided on the concentric circle D 1 on the outer circumferential side of the wheel and the concentric circle D 2 on the inner circumferential side of the wheel of the hub bolt hole 5, but preferably,
At least on the concentric circle D 1 on the outer circumferential side of the wheel, the wheel 1
It is preferable to provide one protrusion 6 at a symmetrical position with respect to the central axis passing through the center of each of the hub bolt holes 5 and the hub bolt hole 5. In this case, the protrusion on the concentric circle D2 can be omitted.
ところで、上記突起６は高さｈが0.2〜2.0ｍ／
ｍで先端を球面状に形成する。 By the way, the height h of the projection 6 is 0.2 to 2.0 m/
Form the tip into a spherical shape with m.
本考案による自動車用車輪は上記構成であるた
め、従来の比較的広い範囲でハブ面に接触する面
を加工するのにくらべ、突起６の面積が小さいた
めに、加工が容易でそための精度が向上する。ま
た、仮に加工精度にバラツキがあり、突起６に多
少の工程差があつたとしてもハブ面に締付けられ
ることにより、ブレーキドラムが変形するよりも
先に突起の高い部分がつぶれるので、突起の低い
部分もハブ面に接触する。その結果、第３図に示
すように自動車のハブ７にナツト８またはボルト
で締付けた場合、車輪に設けた突起６がハブ面に
均一に接触し、ブレーキドラムが変形されること
なく取付けられる。 Since the automobile wheel according to the present invention has the above structure, the area of the protrusion 6 is small compared to the conventional method in which the surface that contacts the hub surface is processed over a relatively wide range, making it easier to process and therefore more accurate. will improve. In addition, even if there are variations in machining accuracy and there is a slight difference in the process for the protrusion 6, the high part of the protrusion will be crushed before the brake drum is deformed by being tightened to the hub surface. part also contacts the hub surface. As a result, when the wheel is tightened to the hub 7 of an automobile with nuts 8 or bolts as shown in FIG. 3, the protrusions 6 provided on the wheel come into uniform contact with the hub surface, and the brake drum is mounted without being deformed.
従つて、従来のホイールのようにブレーキをか
けた時に発生するブレーキジヤダー現象は全くな
くなり、快適な乗心地が得られるものである。ま
た、ブレーキドラムの変形がなくなるため、ブレ
ーキ作用が確実となり、自動車の安全性が向上す
る。しかも、構造が簡単なため、加工が容易で安
価な自動車用車輪を提供できる等多くの実用的効
果を有するものである。 Therefore, the brake jitter phenomenon that occurs when the brakes are applied, which occurs with conventional wheels, is completely eliminated, and a comfortable ride can be achieved. Furthermore, since the brake drum is not deformed, the braking action becomes reliable and the safety of the vehicle is improved. Moreover, since the structure is simple, it has many practical effects such as being able to provide an inexpensive automobile wheel that is easy to process.
第１図は本考案の自動車用車輪の一実施例を示
す斜視図、第２図は本考案の自動車用車輪のハブ
ボルト穴近辺の一実施例を示す一部拡大図、第３
図は本考案の自動車用車輪をハブに取付けた状態
を示す概略説明図である。
１……自動車用車輪、２……リム、３……デイ
スク、４……ハブ取付面、５……ハブボルト穴、
６……突起、７……ハブ。
FIG. 1 is a perspective view showing an embodiment of the automobile wheel of the present invention, FIG. 2 is a partially enlarged view showing an embodiment of the automobile wheel of the present invention near the hub bolt hole, and FIG.
The figure is a schematic explanatory diagram showing a state in which the automobile wheel of the present invention is attached to a hub. 1... Automobile wheel, 2... Rim, 3... Disc, 4... Hub mounting surface, 5... Hub bolt hole,
6...Protrusion, 7...Hub.
Claims (1)
おいて、ハブ取付面側に各々のハブボルト穴周辺
で、かつハブボルト穴のピツチ円直径と異なる直
径を有する少なくとも車輪外周側の同心円D1上
の車輪とハブボルト穴の各中心を通る中心軸線を
はさんだ対称位置に、高さが0.2〜2.0ｍ／ｍで、
先端が球面状の突起を夫々１個ずつ設けてなる自
動車用車輪。 In an automobile wheel having a plurality of hub bolt holes, the wheel and the hub bolt hole are located on the hub mounting surface side around each hub bolt hole and on at least a concentric circle D 1 on the outer circumferential side of the wheel that has a diameter different from the pitch circle diameter of the hub bolt hole. At a symmetrical position across the central axis passing through each center of
An automobile wheel each having one protrusion with a spherical tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981079966U JPH0140721Y2 (en) | 1981-05-30 | 1981-05-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981079966U JPH0140721Y2 (en) | 1981-05-30 | 1981-05-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57191601U JPS57191601U (en) | 1982-12-04 |
| JPH0140721Y2 true JPH0140721Y2 (en) | 1989-12-05 |
Family
ID=29875542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981079966U Expired JPH0140721Y2 (en) | 1981-05-30 | 1981-05-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0140721Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55114601A (en) * | 1979-02-26 | 1980-09-04 | Motor Wheel Corp | Wheel disc and its preparation |
-
1981
- 1981-05-30 JP JP1981079966U patent/JPH0140721Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55114601A (en) * | 1979-02-26 | 1980-09-04 | Motor Wheel Corp | Wheel disc and its preparation |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57191601U (en) | 1982-12-04 |
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