JP2002178709A - Wheel installing structure for automobile - Google Patents
Wheel installing structure for automobileInfo
- Publication number
- JP2002178709A JP2002178709A JP2000376402A JP2000376402A JP2002178709A JP 2002178709 A JP2002178709 A JP 2002178709A JP 2000376402 A JP2000376402 A JP 2000376402A JP 2000376402 A JP2000376402 A JP 2000376402A JP 2002178709 A JP2002178709 A JP 2002178709A
- Authority
- JP
- Japan
- Prior art keywords
- axle
- vibration
- damping material
- vibration damping
- axial direction
- 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.)
- Granted
Links
Landscapes
- Vehicle Body Suspensions (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は自動車用車輪取付け
構造に関し、さらに詳しくは、操縦安定性を実質的に低
下することなく音振性能を向上するうよにした自動車用
車輪取付け構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle wheel mounting structure, and more particularly, to a vehicle wheel mounting structure capable of improving sound and vibration performance without substantially lowering steering stability.
【０００２】[0002]
【従来の技術】一般に、自動車のロードホイールは、車
体にサスペンション等を介して連結されたアクスル部の
ハブに対し、そのディスク部をボルト・ナッド等で締結
するように装着され、操縦安定性と音振性能とを両立さ
せるようにしていた。しかし、近年、乗用車における高
級化が進むにつれ、特に乗心地やロードノイズ等の音振
性能の方を更に向上させることが強く要請されるように
なってきている。2. Description of the Related Art Generally, a road wheel of an automobile is mounted on a hub of an axle portion connected to a vehicle body via a suspension or the like so that a disk portion thereof is fastened with bolts, nuts, or the like, thereby improving steering stability. Sound vibration performance was to be compatible. However, in recent years, as passenger cars have become more sophisticated, it has been strongly demanded to further improve the sound and vibration performance, particularly of ride comfort and road noise.
【０００３】このような要請に対する対策として、特開
平６−３４４７０３号公報は、互いに分離したディスク
部とリム部との間を周方向に複数箇所でスポット溶接
し、非溶接部分にアスファルト、ゴム等の粘弾性物質を
介在させることで制振することを提案している。しか
し、この対策によると、ディスク部とリム部を互いに独
立した部品として用意する必要があるため、既存のホイ
ールは利用できず、専用ホイールとして新たな金型を起
こす必要があった。したがって、製作コストが高くなる
上に、デザイン上からも制約を受けるという欠点があっ
た。As a countermeasure against such a demand, Japanese Patent Application Laid-Open No. Hei 6-344703 discloses a method in which spot welding is performed at a plurality of locations in the circumferential direction between a disk portion and a rim portion separated from each other, and asphalt, rubber, etc. It is proposed to dampen the vibration by interposing a viscoelastic substance. However, according to this measure, it is necessary to prepare the disk portion and the rim portion as parts independent from each other, so that the existing wheel cannot be used, and a new mold needs to be created as a dedicated wheel. Therefore, there are drawbacks that the manufacturing cost is high and the design is restricted.
【０００４】[0004]
【発明が解決しようとする課題】本発明の目的は、従来
構造のロードホイールはそのままにして、実質的に操縦
安定性を低下することなく音振性能を向上する自動車用
車輪取付け構造を提供することにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide a vehicle wheel mounting structure that improves sound and vibration performance without substantially lowering steering stability while keeping a conventional structure of a road wheel. It is in.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成する本発
明は、車軸にアクスルハブを取り付け、該アクスルハブ
にロードホイールを取り付けた車輪取付け構造におい
て、前記車軸とアクスルハブとの間に防振機構を介在さ
せたことを特徴とするものである。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a wheel mounting structure in which an axle hub is mounted on an axle and a road wheel is mounted on the axle hub, wherein a vibration isolating mechanism is interposed between the axle and the axle hub. It is characterized by having made it.
【０００６】このように車軸とアクスルハブとの間に防
振機構を介在させたことにより、この防振機構がタイヤ
からロードホイールのディスク部を経てアクスル部へ伝
達される振動を減衰させ、音振性能の向上を可能にす
る。しかも、軸方向の変位は小さいため実質的に操縦安
定性を低下することはない。また、防振機構は既存のロ
ードホイールを何ら変更することなく装備できるので、
低コストの製作が可能になる。[0006] By interposing the vibration isolating mechanism between the axle and the axle hub, the vibration isolating mechanism attenuates the vibration transmitted from the tire to the axle portion through the disk portion of the road wheel, thereby reducing the sound vibration. Enables improved performance. In addition, since the displacement in the axial direction is small, the steering stability is not substantially reduced. In addition, the anti-vibration mechanism can be equipped without changing the existing road wheel,
Low-cost production becomes possible.
【０００７】[0007]
【発明の実施の形態】本発明において、アクスル部とは
車軸とアクスルハブとから構成された構造体であり、そ
のアクスルハブに車輪（ロードホイール）が固定される
ようになっている。車軸が非駆動軸の場合には、アクス
ルハブは内側にベアリングを介在させて上記車軸上に回
転可能に支持されており、また車軸が駆動軸の場合に
は、この駆動軸にアクスルハブは直接固定される。DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, an axle portion is a structure composed of an axle and an axle hub, and a wheel (road wheel) is fixed to the axle hub. When the axle is a non-drive axle, the axle hub is rotatably supported on the axle with a bearing inside, and when the axle is a drive axle, the axle hub is directly fixed to the drive axle. You.
【０００８】本発明において、防振機構は制振材料を主
要部として構成される。その制振材料は、ロードホイー
ルからアクスル部に伝導される振動を減衰する特性をも
つものであれば特に限定されるものではないが、例え
ば、ゴム、熱可塑性樹脂、該熱可塑性樹脂にゴムをブレ
ンドした熱可塑性樹脂エラストマー組成物などを挙げる
ことができる。また、必要により、制振鋼板を制振材料
にすることもできる。[0008] In the present invention, the vibration damping mechanism is composed mainly of a vibration damping material. The vibration damping material is not particularly limited as long as it has characteristics of attenuating vibration transmitted from the road wheel to the axle portion.For example, rubber, thermoplastic resin, rubber is used for the thermoplastic resin. A blended thermoplastic resin elastomer composition can be used. If necessary, the damping steel sheet can be used as a damping material.
【０００９】制振材料に使用されるゴムは、特に限定さ
れるものではなく、合成ゴム及び天然ゴムのいずれであ
ってもよい。また、熱可塑性樹脂も振動の減衰特性を有
するものであれば特に限定されるものではない。[0009] The rubber used for the vibration damping material is not particularly limited, and may be any of synthetic rubber and natural rubber. The thermoplastic resin is not particularly limited as long as it has vibration damping characteristics.
【００１０】熱可塑性樹脂エラストマー組成物は、熱可
塑性樹脂にゴムをブレンドした粘弾性特性を有する組成
物である。特に、０℃〜１５０℃の範囲にｔａｎδのピ
ークを有する熱可塑性樹脂を連続相とし、その連続相の
中に、少なくとも一部が架橋され、かつ−１００℃〜０
℃の範囲にｔａｎδのピークを有するゴム成分を分散さ
せるようにしたものが好ましい。ここでｔａｎδのピー
クを示す温度とは、ＪＩＳ Ｋ７１９８に基づいて、２
０Ｈｚの条件でｔａｎδの温度依存曲線を求め、その曲
線がピークを示す温度のことである。The thermoplastic resin elastomer composition is a composition having viscoelastic properties obtained by blending a rubber with a thermoplastic resin. In particular, a thermoplastic resin having a peak of tan δ in the range of 0 ° C to 150 ° C is used as a continuous phase, and at least a part of the continuous phase is crosslinked and -100 ° C to 0 ° C.
It is preferable to disperse a rubber component having a tan δ peak in the range of ° C. Here, the temperature at which the peak of tan δ is reached is 2 based on JIS K7198.
A temperature-dependent curve of tan δ is determined under the condition of 0 Hz, and the curve indicates a temperature at which a peak appears.
【００１１】この熱可塑性樹脂エラストマー組成物に使
用されるゴムとしては、ブチル系ゴム、オレフィン系ゴ
ム、天然ゴムなどを挙げることができる。また、熱可塑
性樹脂としては、ポリアミド系樹脂、ポリプロピレン系
樹脂、ポリエステル系樹脂などを挙げることができる。Examples of the rubber used in the thermoplastic resin elastomer composition include butyl rubber, olefin rubber, and natural rubber. Examples of the thermoplastic resin include a polyamide resin, a polypropylene resin, and a polyester resin.
【００１２】本発明に使用される防振機構の構造は、外
筒と内筒との間に制振材料を一体に接合したものが好ま
しい。また、制振材料は、外筒および内筒に対して、焼
付け或いは接着剤で一体に接合されていることが好まし
い。制振材料は上述した材料が使用されるが、外筒や内
筒には、鋼やアルミニウムなどの金属や繊維強化樹脂な
どを使用することができる。The structure of the vibration isolating mechanism used in the present invention is preferably one in which a vibration damping material is integrally joined between an outer cylinder and an inner cylinder. Further, it is preferable that the vibration damping material is integrally joined to the outer cylinder and the inner cylinder by baking or an adhesive. Although the above-described materials are used as the vibration damping material, a metal such as steel or aluminum, a fiber-reinforced resin, or the like can be used for the outer cylinder and the inner cylinder.
【００１３】このような構成からなる防振機構は、車軸
とアクスルハブとの間に介在するように挿入される。車
軸が駆動軸の場合には、内筒を車軸上に固定し、外筒を
アクスルハブの嵌合穴に固定するようにすればよい。車
軸が非駆動輪の場合には、内筒を車軸上に固定すること
は駆動輪の場合と同じであるが、外筒はアクスルハブの
内側に装着されたベアリングの内側に圧入するようにす
る。The anti-vibration mechanism having such a configuration is inserted so as to be interposed between the axle and the axle hub. When the axle is a drive shaft, the inner cylinder may be fixed on the axle, and the outer cylinder may be fixed in the fitting hole of the axle hub. When the axle is a non-drive wheel, fixing the inner cylinder on the axle is the same as that for the drive wheel, but the outer cylinder is pressed into the inside of the bearing mounted inside the axle hub.
【００１４】車軸が非駆動輪である場合に取り付ける防
振機構には、その防振機構中の制振材料の車両進行方向
前側に位置する箇所と後側に位置する箇所とに、それぞ
れ剛性片を挿入するとよい。剛性片としては、例えば、
金属板、セラミック板、樹脂板などを挙げることができ
る。このような剛性片の挿入により、防振機構は車軸に
直交する前後方向の可動変位量が小さくなるので、操縦
安定を向上することができる。The vibration damping mechanism to be mounted when the axle is a non-drive wheel has rigid pieces provided at a position located on the front side and a position located on the rear side of the vibration damping material in the vibration damping mechanism, respectively. Should be inserted. As a rigid piece, for example,
Examples include a metal plate, a ceramic plate, and a resin plate. The insertion of such a rigid piece reduces the amount of movable displacement of the anti-vibration mechanism in the front-rear direction perpendicular to the axle, so that steering stability can be improved.
【００１５】また、上記防振機構は、上記締結具の軸方
向に直交する方向（車両では上下方向）に荷重を与えた
ときの可動変位量δｂが、前記軸方向（車両では左右方
向）に同一荷重を与えたときの可動変位量δａよりも大
きくなるように設定することが好ましい。このように締
結具の軸方向に直交する方向の可動変位量δｂが大きい
ことから乗心地性やロードノイズが低減するように作用
し、また締結具の軸方向の可動変位量δａが小さいこと
により操縦安定を低下しないように、良好に維持するこ
とができる。Further, in the vibration isolating mechanism, the movable displacement amount δb when a load is applied in a direction perpendicular to the axial direction of the fastener (vertical direction in the vehicle) is increased in the axial direction (lateral direction in the vehicle). It is preferable that the setting is made so as to be larger than the movable displacement amount δa when the same load is applied. As described above, since the movable displacement amount δb in the direction orthogonal to the axial direction of the fastener is large, the ride comfort and road noise are reduced, and the axial movable displacement amount δa of the fastener is small. It can be maintained well so as not to lower the steering stability.
【００１６】このような特性を得るための手段として
は、例えば、外筒と内筒との間に介在させた制振材料に
おいて、締結具の軸方向に挟まれた制振材料の厚さａ
を、該軸方向に直交する方向に挟まれた厚さｂよりも小
さくすることで達成することができる。また、外筒と内
筒との間に介在させる制振材料として、締結具の軸方向
に挟まれる制振材料Ａの弾性率と軸方向と直交する方向
に挟まれる制振材料Ｂの弾性率とを互いに異ならせ、か
つ制振材料Ａの弾性率を制振材料Ｂの弾性率よりも大に
することによっても達成することができる。Means for obtaining such characteristics include, for example, the thickness a of the damping material sandwiched in the axial direction of the fastener in the damping material interposed between the outer cylinder and the inner cylinder.
Can be achieved by making the thickness smaller than the thickness b sandwiched in the direction perpendicular to the axial direction. Further, as the damping material interposed between the outer cylinder and the inner cylinder, the elastic modulus of the damping material A sandwiched in the axial direction of the fastener and the elastic modulus of the damping material B sandwiched in the direction perpendicular to the axial direction are set. May be different from each other, and the elastic modulus of the damping material A is made larger than the elastic modulus of the damping material B.
【００１７】図１は、本発明の自動車用車輪取付け構造
の一例を示したものである。FIG. 1 shows an example of a vehicle wheel mounting structure according to the present invention.
【００１８】図１において、１は車両のアクスル部、２
は空気入りタイヤ（図示せず）を装着したロードホイー
ルである。In FIG. 1, reference numeral 1 denotes an axle section of a vehicle;
Is a road wheel equipped with a pneumatic tire (not shown).
【００１９】上記アクスル部１は、非駆動軸である車軸
３とアクスルハブ４からなり、アクスルハブ４の内側に
ベアリング５が挿入され、そのベアリング５と車軸３と
の間に防振機構６が介挿されている。ロードホイール２
はディスク部２ａとリム部２ｂからなり、そのディスク
部２ａがアクスル部１のハブ４に対して、ボルト７ａと
ナット７ｂからなる締結具７により締め付け固定されて
いる。上記防振機構６は、外筒８と内筒９との間に制振
材料１０を一体に接着させた構成からなり、その外筒８
がアクスルハブ４内に固定されたベアリング５の内側に
圧入され、また内筒９が車軸３の上に固定されている。The axle unit 1 comprises an axle 3 which is a non-drive shaft and an axle hub 4. A bearing 5 is inserted inside the axle hub 4, and an anti-vibration mechanism 6 is inserted between the bearing 5 and the axle 3. Have been. Road wheel 2
Is composed of a disk portion 2a and a rim portion 2b, and the disk portion 2a is fastened and fixed to the hub 4 of the axle portion 1 by a fastener 7 composed of a bolt 7a and a nut 7b. The vibration damping mechanism 6 has a structure in which a vibration damping material 10 is integrally bonded between an outer cylinder 8 and an inner cylinder 9.
Are pressed into the inside of a bearing 5 fixed in the axle hub 4, and the inner cylinder 9 is fixed on the axle 3.
【００２０】上記のようにアクスル部１の車軸３とハブ
４との間に防振機構６を介在させたことにより、ロード
ホイール２のディスク２ａら締結具７を経てアクスルハ
ブ４に伝達される振動を、上記防振機構６が減衰し、車
軸３に伝達される量を低減するため音振性能を向上する
ことができる。また、防振機構６は外筒８と内筒９との
間に制振材料１０を筒状に接着固定したものであるた
め、軸方向の変位量が小さく抑制し、実質的に操縦安定
性が低下しないようになっている。Since the vibration isolating mechanism 6 is interposed between the axle 3 of the axle portion 1 and the hub 4 as described above, the vibration transmitted from the disk 2a of the road wheel 2 to the axle hub 4 via the fastener 7 is provided. The vibration damping mechanism 6 is attenuated, and the amount transmitted to the axle 3 is reduced, so that the sound vibration performance can be improved. Further, since the vibration damping mechanism 6 is formed by adhering and fixing the vibration damping material 10 in a tubular shape between the outer cylinder 8 and the inner cylinder 9, the amount of displacement in the axial direction is suppressed to be small, and the steering stability is substantially reduced. Is not reduced.
【００２１】また、上記防振機構６を挿入するに当た
り、ロードホイール２を改造したりする変更はないの
で、従来のロードホイール用の金型をそのまま利用する
ことができ、低コストでの製作を可能にすることができ
る。また、従来のロードホイールが利用できるので、デ
ザイン上の制約を受けることもない。Further, when the vibration isolating mechanism 6 is inserted, the road wheel 2 is not remodeled or changed, so that a conventional mold for a road wheel can be used as it is, and the production at low cost can be achieved. Can be made possible. Further, since a conventional road wheel can be used, there is no restriction on design.
【００２２】図２は、本発明の自動車用車輪取付け構造
に使用される防振機構の他の例を示したものである。FIG. 2 shows another example of an anti-vibration mechanism used in the vehicle wheel mounting structure of the present invention.
【００２３】図２に示す防振機構６は、外筒８と内筒９
との間に同心状に挟まれた制振材料１０の中に、車両進
行方向Ｆの前側に位置する箇所と後側に位置する箇所と
に、それぞれ剛性片１１，１１を軸方向に延長するよう
に挿入したものである。剛性片１１は、制振材料１０よ
りも剛性の大きいものであればよく、例えば、金属板、
セラミック板、樹脂板などが使用可能である。この剛性
片１１の挿入により、防振機構６は車軸３に直交する前
後方向への可動変位量が小さくなり、操縦安定を向上す
ることができる。The anti-vibration mechanism 6 shown in FIG.
In the vibration damping material 10 concentrically sandwiched between the rigid pieces 11, 11, the rigid pieces 11, 11 are extended in the axial direction at a position located on the front side and a position located on the rear side in the vehicle traveling direction F, respectively. It is inserted as follows. The rigid piece 11 only needs to have a higher rigidity than the vibration damping material 10, for example, a metal plate,
A ceramic plate, a resin plate, or the like can be used. By the insertion of the rigid piece 11, the amount of movable displacement of the anti-vibration mechanism 6 in the front-rear direction orthogonal to the axle 3 is reduced, and steering stability can be improved.
【００２４】図３は、本発明に使用される防振機構の更
に他の例を示したものである。FIG. 3 shows still another example of the anti-vibration mechanism used in the present invention.
【００２５】図３に示す防振機構６は、外筒８の両端部
にそれぞれカギ状に内側へ折り曲げた鍔部８ａ，８ａを
形成し、他方、内筒９は中央部に径大９ａを形成し、そ
の径大部９ａを外筒８の両鍔部８ａ，８ａの間に挿入す
るようにしたものである。上記構成により、外筒８の鍔
部８ａと内筒９の径大部９ａとの間が軸方向に一部対面
し、そこに介在する制振材料１０の厚さａが、外筒８と
内筒９（径大部９ａ）との間の径方向の厚さｂよりも小
さくなるようにしている。The anti-vibration mechanism 6 shown in FIG. 3 has flanges 8a, 8a which are bent in a key shape inward at both ends of the outer cylinder 8, while the inner cylinder 9 has a large diameter 9a at the center. The large-diameter portion 9a is formed and inserted between both flange portions 8a of the outer cylinder 8. With the above configuration, a portion between the flange portion 8a of the outer cylinder 8 and the large-diameter portion 9a of the inner cylinder 9 partially faces in the axial direction, and the thickness a of the vibration damping material 10 interposed therebetween is smaller than that of the outer cylinder 8. The thickness b in the radial direction between the inner cylinder 9 (the large-diameter portion 9a) and the inner cylinder 9 (the large-diameter portion 9a) is made smaller.
【００２６】このように外筒８と内筒９との間に軸方向
に挟まれる制振材料７の厚さａを、径方向に挟まれる厚
さｂよりも小さくしたことにより、防振機構６に対して
車軸３の軸方向に直交する方向（車両では上下方向）に
荷重を与えたときの可動変位量δｂを、同軸方向（車両
では左右方向）に同一荷重を与えたときの可動変位量δ
ａよりも大きくすることができる。この可動変位量の差
（δｂ＞δａ）の設定により、実質的に操縦安定性を低
下させることなく音振性能を向上することができる。As described above, the thickness "a" of the vibration damping material 7 sandwiched between the outer cylinder 8 and the inner cylinder 9 in the axial direction is smaller than the thickness "b" sandwiched in the radial direction. 6, the amount of movable displacement δb when a load is applied in a direction perpendicular to the axial direction of the axle 3 (vertical direction in the vehicle) is calculated by the amount of movable displacement when the same load is applied in the coaxial direction (the left and right direction in the vehicle). Quantity δ
It can be larger than a. By setting the difference between the movable displacement amounts (δb> δa), the sound vibration performance can be improved without substantially lowering the steering stability.
【００２７】図４は、本発明に使用する防振機構のさら
に他の例を示したものである。FIG. 4 shows still another example of the anti-vibration mechanism used in the present invention.
【００２８】図４に示す防振機構６は、図３の防振機構
において、内筒９の中央部に凹状の鼓形湾曲部９ｂを形
成したものである。The anti-vibration mechanism 6 shown in FIG. 4 is different from the anti-vibration mechanism of FIG. 3 in that a concave drum-shaped curved portion 9b is formed at the center of the inner cylinder 9.
【００２９】このように内筒９の中央部に鼓形湾曲部９
ｂを形成したことにより、制振材料１０の径方向（軸方
向に直交する方向）の容積が図３の防振機構よりも増大
し、図３の場合よりも音振性能をさらに向上することが
できる。As described above, the central portion of the inner cylinder 9 has a
By forming b, the volume of the vibration damping material 10 in the radial direction (direction orthogonal to the axial direction) is increased as compared with the vibration damping mechanism of FIG. 3, and the sound vibration performance is further improved as compared with the case of FIG. Can be.
【００３０】図５は、本発明に使用する防振機構のさら
に他の例を示したものである。FIG. 5 shows still another example of the vibration isolating mechanism used in the present invention.
【００３１】この防振機構６は、制振材料１０として弾
性率が異なる２種類を設けたもので、外筒８の鍔８ａと
内筒９の径大部９ａとの間に軸方向に挟まれる箇所に弾
性率の大きい制振材料Ａを介在させ、また外筒８と内筒
９との径方向に挟まれる箇所に、制振材料Ａよりも弾性
率が小さい制振材料Ｂを介在させたものである。The vibration damping mechanism 6 is provided with two kinds of damping materials 10 having different elastic moduli, and is sandwiched in the axial direction between the flange 8a of the outer cylinder 8 and the large-diameter portion 9a of the inner cylinder 9. A vibration damping material A having a large elastic modulus is interposed at a position where the vibration damping material A is applied, and a vibration damping material B having a smaller elastic modulus than the vibration damping material A is interposed between the outer cylinder 8 and the inner cylinder 9 in a radial direction. It is a thing.
【００３２】このように弾性率が互いに異なる２種類の
制振材料Ａ，Ｂ（Ａの弾性率＞Ｂの弾性率）を外筒８と
内筒９との間に上記のように配置したことにより、防振
機構６に対して軸方向に直交する方向（車両の上下方
向）に荷重を与えたときの可動変位量δｂを、同軸方向
（車両の左右方向）に同一荷重を与えたときの可動変位
量δａよりも大きくすることができる。したがって、実
質的に操縦安定性を低下させることなく音振性能を向上
することができる。The two kinds of vibration damping materials A and B having different elastic moduli (elastic modulus of A> elastic modulus of B) are arranged between the outer cylinder 8 and the inner cylinder 9 as described above. Accordingly, the amount of movable displacement δb when a load is applied to the vibration isolating mechanism 6 in a direction perpendicular to the axial direction (vertical direction of the vehicle) is calculated by It can be larger than the movable displacement amount δa. Therefore, the sound and vibration performance can be improved without substantially lowering the steering stability.
【００３３】[0033]
【実施例】外筒及び内筒をステンレス鋼にし、制振材料
をゴムにした防振機構を、それぞれ図１の構造（実施例
１）、図４の構造（実施例２）および図５の構造（実施
例３）に異ならせて、アクスル部の車軸とハブとの間に
介在させた３種類の自動車用車輪取付け構造を製作し
た。また、比較として、上記防振機構を介在させない自
動車用車輪取付け構造を製作した。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A vibration damping mechanism in which an outer cylinder and an inner cylinder are made of stainless steel and a vibration damping material is made of rubber is shown in FIG. 1 (embodiment 1), FIG. 4 (embodiment 2) and FIG. Different from the structure (Example 3), three types of vehicle wheel mounting structures interposed between the axle of the axle portion and the hub were manufactured. As a comparison, a vehicle wheel mounting structure without the vibration isolating mechanism was manufactured.
【００３４】これら４種類の車輪取付け構造を用いて、
下記の評価方法により乗心地、ロードノイズ、操縦安定
性を測定したところ、表１の結果を得た。Using these four types of wheel mounting structures,
When the riding comfort, road noise, and steering stability were measured by the following evaluation methods, the results shown in Table 1 were obtained.
【００３５】〔乗心地、ロードノイズ、操縦安定性〕タ
イヤサイズ２０５／６５Ｒ１５ ９４Ｓ（リム幅６Ｊ
Ｊ）の空気入りラジアルタイヤを装着し、これを国産
２．５リットルのＦＦ車のフロントに装着したときの乗
心地、ロードノイズおよび操縦安定性を、５人の訓練さ
れたパネリストによりフィーリング・テストした。テス
トの評価は５点満点で採点した。[Ride comfort, road noise, steering stability] Tire size 205 / 65R15 94S (rim width 6J
J) equipped with pneumatic radial tires and installed on the front of a 2.5-liter FF car manufactured in Japan. Tested. The test was scored out of 5 points.
【００３６】５人のパネリストの採点のうち最大値と最
低値を除外した残り三つの採点の平均値で評価を行い、
その評価値を従来例を１００とする指数で示した。指数
が大きいほど優れていることを意味する。Evaluation was performed by averaging the remaining three scores excluding the maximum and minimum values among the scores of the five panelists.
The evaluation value was indicated by an index with the conventional example taken as 100. The higher the index, the better.
【００３７】[0037]
【表１】 [Table 1]
【００３８】[0038]
【発明の効果】上述したように本発明によれば、車軸と
アクスルハブとの間に防振機構を介在させたことによ
り、この防振機構がタイヤからロードホイールのディス
ク部を経てアクスル部へ伝達される振動を減衰させ、音
振性能の向上を可能にする。しかも、軸方向の変位は小
さいため実質的に操縦安定性を低下することがなく、ま
た防振機構は既存のロードホイールを何ら変更すること
なく装備できるので、低コストの製作が可能になる。As described above, according to the present invention, since the vibration isolating mechanism is interposed between the axle and the axle hub, the vibration isolating mechanism transmits the tire to the axle portion via the disk portion of the road wheel. Attenuated vibrations and improve sound and vibration performance. Moreover, since the displacement in the axial direction is small, the steering stability is not substantially reduced, and the anti-vibration mechanism can be equipped without changing the existing road wheel, so that low-cost manufacturing is possible.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明の実施形態からなる自動車用車輪取付け
構造の半断面図である。FIG. 1 is a half sectional view of a vehicle wheel mounting structure according to an embodiment of the present invention.
【図２】本発明に使用される防振機構の他の例を示す横
断面図である。FIG. 2 is a cross-sectional view showing another example of the vibration isolation mechanism used in the present invention.
【図３】本発明に使用される防振機構の更に他の例を示
す縦断面図である。FIG. 3 is a longitudinal sectional view showing still another example of the vibration isolating mechanism used in the present invention.
【図４】本発明に使用される防振機構の更に他の例を示
す縦断面図である。FIG. 4 is a longitudinal sectional view showing still another example of the vibration isolating mechanism used in the present invention.
【図５】本発明に使用される防振機構の更に他の例を示
す縦断面図である。FIG. 5 is a longitudinal sectional view showing still another example of the vibration isolating mechanism used in the present invention.
１ アクスル部 ２ 車両アクスル部 ３ 車軸 ４ アクスルハブ ５ ベアリング ６ 防振機構 ８ 外筒 ８ａ 鍔部 ９ 内筒 ９ａ 径大部 １０ 制振材料 １１ 剛性片 DESCRIPTION OF SYMBOLS 1 Axle part 2 Vehicle axle part 3 Axle 4 Axle hub 5 Bearing 6 Vibration-proof mechanism 8 Outer cylinder 8a Flange part 9 Inner cylinder 9a Large diameter part 10 Damping material 11 Rigid piece
Claims (7)
スルハブにロードホイールを取り付けた車輪取付け構造
において、前記車軸とアクスルハブとの間に防振機構を
介在させた自動車用車輪取付け構造。1. A vehicle wheel mounting structure in which an axle hub is mounted on an axle and a road wheel is mounted on the axle hub, wherein a vibration isolating mechanism is interposed between the axle and the axle hub.
材料を介在させた構成からなり、前記外筒を前記ハブ側
に固定し、前記内筒を前記車軸側に固定した請求項１に
記載の自動車用車輪取付け構造。2. The vibration damping mechanism has a structure in which a vibration damping material is interposed between an outer cylinder and an inner cylinder. The outer cylinder is fixed to the hub side, and the inner cylinder is fixed to the axle side. The vehicle wheel mounting structure according to claim 1.
又は熱可塑性樹脂にゴムをブレンドした熱可塑性樹脂エ
ラストマー組成物である請求項２に記載の自動車用車輪
取付け構造。3. The vibration-damping material is rubber, thermoplastic resin,
The vehicle wheel mounting structure according to claim 2, which is a thermoplastic resin elastomer composition obtained by blending a rubber with a thermoplastic resin.
料の車両進行方向前側に位置する箇所と後側に位置する
箇所とに、それぞれ剛性片を挿入した請求項２又は３に
記載の自動車用車輪取付け構造。4. The axle according to claim 2, wherein the axle is a non-drive shaft, and rigid pieces are respectively inserted into a portion of the vibration damping material located on a front side and a portion located on a rear side in a vehicle traveling direction. Car wheel mounting structure.
に直交する方向に荷重を与えたときの可動変位量δｂ
を、前記軸方向に同一荷重を与えたときの可動変位量δ
ａよりも大きくした請求項１，２，３又は４に記載の自
動車用車輪取付け構造。5. A movable displacement amount δb when a load is applied to the vibration isolating mechanism in a direction perpendicular to the axial direction of the axle.
Is the amount of movable displacement δ when the same load is applied in the axial direction.
5. The vehicle wheel mounting structure according to claim 1, wherein the width is larger than a.
向に挟まれる箇所の制振材料の厚さａを、該軸方向に直
交する方向に挟まれる箇所の厚さｂよりも小さくした請
求項２，３，４又は５に記載の自動車用車輪取付け構
造。6. The thickness a of the vibration damping material at a location sandwiched in the axial direction of the axle between the outer cylinder and the inner cylinder is made larger than the thickness b at a location sandwiched in a direction perpendicular to the axial direction. 6. The vehicle wheel mounting structure according to claim 2, wherein the size is also reduced.
向に挟まれる箇所の制振材料Ａを前記軸方向に直交する
方向に挟まれる箇所の制振材料Ｂと異ならせ、前記制振
材料Ａの弾性率を前記制振材料Ｂの弾性率よりも大にし
た請求項２，３，４又は５に記載の自動車用車輪取付け
構造。7. A vibration damping material A at a location sandwiched in the axial direction of the axle between the outer cylinder and the inner cylinder is different from a vibration damping material B at a location sandwiched in a direction perpendicular to the axial direction. 6. The vehicle wheel mounting structure according to claim 2, wherein an elastic modulus of the vibration damping material A is larger than an elastic modulus of the vibration damping material B.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000376402A JP4487113B2 (en) | 2000-12-11 | 2000-12-11 | Wheel mounting structure for automobiles |
| US10/006,703 US6565158B2 (en) | 2000-12-11 | 2001-12-10 | Automotive road wheel and attaching structure of the same |
| DE10160599A DE10160599A1 (en) | 2000-12-11 | 2001-12-10 | Motor vehicle wheel and associated mounting arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000376402A JP4487113B2 (en) | 2000-12-11 | 2000-12-11 | Wheel mounting structure for automobiles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002178709A true JP2002178709A (en) | 2002-06-26 |
| JP4487113B2 JP4487113B2 (en) | 2010-06-23 |
Family
ID=18845264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000376402A Expired - Fee Related JP4487113B2 (en) | 2000-12-11 | 2000-12-11 | Wheel mounting structure for automobiles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4487113B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008121774A (en) * | 2006-11-10 | 2008-05-29 | Jtekt Corp | Ball bearing apparatus for wheel |
| JP2023507958A (en) * | 2019-12-19 | 2023-02-28 | ポスコホールディングス インコーポレーティッド | Surface treatment composition for damping steel plate and damping steel plate |
-
2000
- 2000-12-11 JP JP2000376402A patent/JP4487113B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008121774A (en) * | 2006-11-10 | 2008-05-29 | Jtekt Corp | Ball bearing apparatus for wheel |
| JP2023507958A (en) * | 2019-12-19 | 2023-02-28 | ポスコホールディングス インコーポレーティッド | Surface treatment composition for damping steel plate and damping steel plate |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4487113B2 (en) | 2010-06-23 |
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