JP2003094905A - Bearing device for axle - Google Patents
Bearing device for axleInfo
- Publication number
- JP2003094905A JP2003094905A JP2001293494A JP2001293494A JP2003094905A JP 2003094905 A JP2003094905 A JP 2003094905A JP 2001293494 A JP2001293494 A JP 2001293494A JP 2001293494 A JP2001293494 A JP 2001293494A JP 2003094905 A JP2003094905 A JP 2003094905A
- Authority
- JP
- Japan
- Prior art keywords
- hub wheel
- bolt insertion
- flange
- peripheral surface
- bearing
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
- F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
- F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
- F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
- F16C19/186—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement with three raceways provided integrally on parts other than race rings, e.g. third generation hubs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2326/00—Articles relating to transporting
- F16C2326/01—Parts of vehicles in general
- F16C2326/02—Wheel hubs or castors
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ディスクブレーキ
装置のディスクロータおよび車輪が取付けられる車両用
ハブユニット等の車軸用軸受装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bearing device for an axle such as a vehicle hub unit to which a disc rotor of a disc brake device and wheels are mounted.
【０００２】[0002]
【従来の技術】従来より、シャフトの回転動力を車輪に
伝達する車両用ハブユニットの一例として、例えば、特
開２０００−６５０４９号公報や特開２０００−９４９
０２号公報に開示されたものがある。2. Description of the Related Art Conventionally, as an example of a vehicle hub unit for transmitting rotational power of a shaft to wheels, for example, JP-A-2000-65049 or 2000-949.
There is one disclosed in Japanese Patent Laid-Open No. 02.
【０００３】ハブユニットは、シャフトに固定したハブ
ホイールのフランジを、ディスクロータおよび車輪にボ
ルト止めすると共に、ハブホイールの外周面に設けた軸
受を介して車体に回転自在に取り付けてられている。The hub unit has a flange of a hub wheel fixed to a shaft fixed to a disk rotor and a wheel by bolts, and is rotatably attached to a vehicle body through a bearing provided on the outer peripheral surface of the hub wheel.
【０００４】[0004]
【発明が解決しようとする課題】しかし、従来のハブユ
ニットによると、ハブホイールのフランジは略円形に形
成されているため、軸受の外輪を車体にボルト止めする
際に、当該ボルトを締結する工具がハブホイールのフラ
ンジにて邪魔され、円滑にボルトの締結作業が行えない
という問題があった。However, according to the conventional hub unit, since the flange of the hub wheel is formed in a substantially circular shape, a tool for fastening the bolt when the outer ring of the bearing is bolted to the vehicle body. Was hindered by the flange of the hub wheel, and there was a problem that the bolt tightening work could not be performed smoothly.
【０００５】また、ハブホイールのフランジが略円形に
形成されているため、ハブホイールが大型化し、重量も
重くなるという問題もあった。Further, since the flange of the hub wheel is formed in a substantially circular shape, there is a problem that the hub wheel becomes large in size and heavy in weight.
【０００６】この発明は、ハブホイールの軽量・小型化
が図れると共に、ハブホイールにて邪魔されることなく
軸受の外輪を円滑に車体にボルト止めできる車軸用軸受
装置を提供することを目的とする。It is an object of the present invention to provide a bearing device for an axle, which is capable of reducing the weight and size of the hub wheel and smoothly bolting the outer ring of the bearing to the vehicle body without being hindered by the hub wheel. .
【０００７】[0007]
【課題を解決するための手段】本発明の請求項１の車軸
用軸受装置は、外周面に突設したボルト挿通孔を有する
フランジを車輪にボルト止めしてなるハブホイールと、
前記ハブホイールの外周面に設けられ該ハブホイールを
前記車体に対して回転自在に支持した軸受とを備え、前
記軸受は、前記ハブホイールの外周面に設けた内輪と、
外周面に前記車体にボルト止めする取付片を有した外輪
と、前記内輪と前記外輪の間に介装した転動体とからな
り、前記ハブホイールのフランジの外周において前記ボ
ルト挿通孔の周辺を避けて該ボルト挿通孔間に、該ボル
ト挿通孔のピッチ円直径より内径側で隣接するボルト挿
通孔の中心を結ぶ弦にその最深部が近接する切り欠き部
を形成したものである。According to a first aspect of the present invention, there is provided a bearing device for an axle, comprising: a hub wheel having a flange having a bolt insertion hole projecting on an outer peripheral surface thereof and being bolted to the wheel.
A bearing that is provided on the outer peripheral surface of the hub wheel and rotatably supports the hub wheel with respect to the vehicle body; the bearing has an inner ring provided on the outer peripheral surface of the hub wheel;
It consists of an outer ring having an attachment piece for bolting to the vehicle body on the outer peripheral surface, and a rolling element interposed between the inner ring and the outer ring, and avoids the periphery of the bolt insertion hole on the outer periphery of the flange of the hub wheel. Between the bolt insertion holes, a notch is formed in which the deepest portion is close to a chord connecting the centers of the bolt insertion holes that are adjacent to each other on the inner diameter side of the pitch diameter of the bolt insertion holes.
【０００８】本発明の請求項１の車軸用軸受装置による
と、ハブホイールのフランジの外周に、ボルト挿通孔の
ピッチ円直径より内径側で隣接するボルト挿通孔の中心
を結ぶ弦にその最深部が近接する切り欠き部を形成した
ので、軸受の外輪を工具にて車体にボルト止めする際
に、ハブホイールにて邪魔されることなく円滑にボルト
止めできる。しかも、切り欠き部を形成したことによ
り、ハブホイールの軽量・小型化が図れる。According to the bearing device for an axle of claim 1 of the present invention, the deepest part of the chord connecting the centers of the bolt through holes adjacent to the inner diameter side of the pitch circle diameter of the bolt through holes on the outer periphery of the flange of the hub wheel. Since the notch portions that are adjacent to each other are formed, when the outer ring of the bearing is bolted to the vehicle body with a tool, the hub wheel can be smoothly bolted without being disturbed. Moreover, by forming the cutout portion, the hub wheel can be made lighter and smaller.
【０００９】また、ハブホイールのフランジのボルト挿
通孔の周辺を避けて該ボルト挿通孔間に切り欠き部を形
成したことで、ハブホイールのフランジをディスクブレ
ーキ装置のディスクロータにボルト止めした際に、ディ
スクロータとの接触面積が大きくなり、ディスクロータ
の振れ精度が低下するのを防止できる。Further, since the notch is formed between the bolt insertion holes of the flange of the hub wheel while avoiding the periphery of the bolt insertion hole, when the flange of the hub wheel is bolted to the disc rotor of the disc brake device. Therefore, it is possible to prevent the contact area with the disk rotor from increasing and the runout accuracy of the disk rotor from decreasing.
【００１０】本発明の請求項２の車軸用軸受装置は、請
求項１において、ハブホイールのフランジの各ボルト挿
通孔の外周近傍の肉厚を薄くしたものである。According to a second aspect of the present invention, there is provided the axle bearing device according to the first aspect, wherein the thickness of the flange of the hub wheel in the vicinity of the outer periphery of each bolt insertion hole is reduced.
【００１１】本発明の請求項２の車軸用軸受装置による
と、ハブホイールのフランジの各ボルト挿通孔の外周近
傍の肉厚を薄くしたことにより、ハブホイールの軽量化
が図れる。しかも、各ボルト挿通孔の外周近傍を除く各
ボルト挿通孔を含んで内周側の肉厚は薄くしないため、
フランジの曲げ剛性が低下するのを防止できる。According to the axle bearing device of the second aspect of the present invention, the hub wheel can be made lighter by reducing the wall thickness in the vicinity of the outer periphery of each bolt insertion hole of the flange of the hub wheel. Moreover, since the thickness of the inner peripheral side including each bolt insertion hole except the vicinity of the outer periphery of each bolt insertion hole is not thin,
It is possible to prevent the bending rigidity of the flange from decreasing.
【００１２】[0012]
【発明の実施の形態】本発明の実施の形態について、図
１ないし図３を用いて説明する。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described with reference to FIGS.
【００１３】図１は車軸用軸受装置の断面図、図２はハ
ブホイールの車両インナ側の正面図、図３はハブホイー
ルの断面図を示している。FIG. 1 is a sectional view of the bearing device for an axle, FIG. 2 is a front view of the hub wheel on the vehicle inner side, and FIG. 3 is a sectional view of the hub wheel.
【００１４】図１に示す車軸用軸受装置は、自動車の駆
動輪側に使用されるタイプであって、ハブホイール１
と、複列転がり軸受２とを備えている。The bearing device for an axle shown in FIG. 1 is of a type used on the drive wheel side of an automobile, and has a hub wheel 1
And a double row rolling bearing 2.
【００１５】ハブホイール１は、鍛造により形成された
中空構造となっており、その外周面の軸方向中間部には
径方向外向きのフランジ１１が形成され、また、中空孔
４０の所要領域にはスプラインが形成され、外周面にお
いてフランジ１１よりも車両インナ側には、複列転がり
軸受２における車両アウタ側の玉群２２の軌道面１２が
形成された構成となっている。中空孔４０には、軸体
（図示せず）がスプライン嵌合される。The hub wheel 1 has a hollow structure formed by forging. A radially outward flange 11 is formed at an axially intermediate portion of the outer peripheral surface of the hub wheel 1, and a hollow hole 40 is provided in a required area. Is formed with a spline, and the raceway surface 12 of the ball group 22 on the vehicle outer side of the double row rolling bearing 2 is formed on the vehicle inner side of the flange 11 on the outer peripheral surface. A shaft (not shown) is spline-fitted into the hollow hole 40.
【００１６】複列転がり軸受２は、二列の軌道溝を有す
る単一の外輪２１と、二列で配設される転動体としての
複数の玉２２，２４と、二つの冠形保持器２３と、車両
インナ側の玉群２４に関する内輪２５とから構成されて
おり、車両アウタ側の玉群２２の内輪については上述し
たようにハブホイール１に一体形成されている。The double-row rolling bearing 2 has a single outer ring 21 having two rows of raceway grooves, a plurality of balls 22 and 24 as rolling elements arranged in two rows, and two crown-shaped cages 23. And the inner ring 25 related to the vehicle inner side ball group 24. The inner ring of the vehicle outer side ball group 22 is integrally formed with the hub wheel 1 as described above.
【００１７】なお、ハブホイール１の外周面には、複列
転がり軸受２が取り付けられる。このハブホイール１の
車両インナ側端部は、径方向外向きに屈曲されて複列転
がり軸受２の内輪２５の車両インナ側端面に対してかし
めつけられている。このかしめ部には、符号１４を付し
てある。A double row rolling bearing 2 is mounted on the outer peripheral surface of the hub wheel 1. The end portion of the hub wheel 1 on the vehicle inner side is bent radially outward and is crimped to the end surface of the inner ring 25 of the double-row rolling bearing 2 on the vehicle inner side. The caulking portion is denoted by reference numeral 14.
【００１８】そして、ハブホイール１のフランジ１１に
対してディスクブレーキ装置のディスクロータ４および
車輪（図示省略）があてがわれて複数のボルト１３によ
り装着される。また、複列転がり軸受２の外輪２１に設
けてある径方向外向きの取付片２４が、車体５などにボ
ルト３９にて固定される。なお、７はブレーキパッドで
ある。Then, the disc rotor 4 and wheels (not shown) of the disc brake device are applied to the flange 11 of the hub wheel 1 and mounted by a plurality of bolts 13. Further, the radially outward mounting piece 24 provided on the outer race 21 of the double-row rolling bearing 2 is fixed to the vehicle body 5 or the like with bolts 39. In addition, 7 is a brake pad.
【００１９】次に、ハブホイール１について、図２およ
び図３を用いて詳細に説明する。Next, the hub wheel 1 will be described in detail with reference to FIGS. 2 and 3.
【００２０】このハブホイール１は、四箇所にてディス
クロータ４および車輪にボルト１３にて固定されるもの
である。The hub wheel 1 is fixed to the disc rotor 4 and the wheels at four points with bolts 13.
【００２１】ハブホイール１は、中心に軸体をスプライ
ン嵌合する中空孔４０を有し、外周面に突設したフラン
ジ１１には四個のボルト挿通孔４１が等間隔に形成され
ている。そして、各ボルト挿通孔４１の周辺を避けて、
各ボルト挿通孔４１間において、フランジ１１の外周に
Ｒ形状の切り欠き部４２が形成されている。なお、切り
欠き部４２をＲ形状とすることで、フランジ１１に応力
が集中するのを防ぐことができる。The hub wheel 1 has a hollow hole 40 in the center for spline-fitting a shaft body, and four bolt insertion holes 41 are formed at equal intervals in the flange 11 projecting on the outer peripheral surface. And avoid the vicinity of each bolt insertion hole 41,
R-shaped notches 42 are formed on the outer periphery of the flange 11 between the bolt insertion holes 41. By forming the notch 42 in the R shape, it is possible to prevent stress from being concentrated on the flange 11.
【００２２】切り欠き部４２は、ボルト挿通孔４１のピ
ッチ円直径Ａより内径側で、かつ、隣接するボルト挿通
孔４１の中心を結ぶ弦Ｂにその最深部４２ａが近接する
ように形成されている。しかも、切り欠き部４２は、外
輪２１の取付片２４を車体５に固定するボルト３９を締
結する工具、例えば、インパクトレンチが挿通可能な大
きさに形成されている。なお、ピッチ円直径（ＰＣＤ）
とは、各ボルト挿通孔４１の中心を結んだ円を表してい
る。The notch 42 is formed on the inner diameter side of the pitch circle diameter A of the bolt insertion hole 41, and its deepest portion 42a is close to the chord B connecting the centers of the adjacent bolt insertion holes 41. There is. Moreover, the notch 42 is formed to have a size such that a tool for fastening the bolt 39 for fixing the mounting piece 24 of the outer ring 21 to the vehicle body 5, for example, an impact wrench can be inserted. Pitch circle diameter (PCD)
Represents a circle connecting the centers of the bolt insertion holes 41.
【００２３】また、フランジ１１は、各ボルト挿通孔４
１の外周近傍の肉厚を薄くしてある。薄肉部には符号４
３を付してある。すなわち、各ボルト挿通孔４１の外周
近傍を除く各ボルト挿通孔４１を含んで内周側の肉厚は
薄くせず、十分な曲げ剛性が得られるように通常の厚肉
部４４とし、フランジ１１の曲げ剛性に影響のない各ボ
ルト挿通孔４１の外周近傍のみを薄肉部４３とする。Further, the flange 11 is provided with each bolt insertion hole 4
The wall thickness in the vicinity of 1 is thin. Reference number 4 for thin wall
3 is attached. That is, the thickness of the inner peripheral side including the bolt insertion holes 41 except for the vicinity of the outer periphery of each bolt insertion hole 41 is not reduced, and the normal thick portion 44 is formed so that sufficient bending rigidity is obtained, and the flange 11 is formed. The thin portion 43 is formed only in the vicinity of the outer circumference of each bolt insertion hole 41 that does not affect the bending rigidity of the.
【００２４】外輪２１の取付片２４を車体５にボルト３
９にて固定する際には、適宜、切り欠き部４２が取付片
２４のボルト挿通孔に対峙するようにハブホイール１を
回転させ、切り欠き部４２に工具を挿通してボルト３９
を締結する。Attach the mounting piece 24 of the outer ring 21 to the vehicle body 5 with the bolt 3
9 is fixed, the hub wheel 1 is appropriately rotated so that the cutout portion 42 faces the bolt insertion hole of the mounting piece 24, and the tool is inserted into the cutout portion 42 to insert the bolt 39.
Conclude
【００２５】このように構成された車軸用軸受装置によ
れば、ハブホイール１のフランジ１１の外周に、ボルト
挿通孔４１のピッチ円直径Ａより内径側で隣接するボル
ト挿通孔４１の中心を結ぶ弦Ｂにその最深部４２ａが近
接する切り欠き部４２を形成したので、軸受２の外輪２
１を車体５にボルト止めする際に、ハブホイール１にて
邪魔されることなく、工具にて円滑にボルト３９を締結
することができ、製造作業性に優れる。しかも、切り欠
き部４２を形成したことにより、ハブホイール１の軽量
・小型化が図れる。According to the bearing device for an axle thus constructed, the center of the bolt insertion hole 41 adjacent to the inner diameter side of the pitch circle diameter A of the bolt insertion hole 41 is connected to the outer periphery of the flange 11 of the hub wheel 1. Since the deepest portion 42a of the chord B is adjacent to the notch 42, the outer ring 2 of the bearing 2
When bolting 1 to the vehicle body 5, the bolts 39 can be smoothly tightened with a tool without being hindered by the hub wheel 1, and the manufacturing workability is excellent. Moreover, the hub wheel 1 can be made lighter and more compact by forming the notch 42.
【００２６】また、ハブホイール１のフランジ１１のボ
ルト挿通孔４１の周辺を避けて切り欠き部４２を形成し
たことで、ハブホイール１のフランジ１１をディスクブ
レーキ装置のディスクロータ４にボルト止めした際に、
ディスクロータ４との接触面積が大きくなり、ディスク
ロータ４の振れ精度、特にフランジ１１の面方向の曲げ
に対しての振れ精度が低下するのを防止できる。Further, since the notch 42 is formed avoiding the periphery of the bolt insertion hole 41 of the flange 11 of the hub wheel 1, when the flange 11 of the hub wheel 1 is bolted to the disc rotor 4 of the disc brake device. To
It is possible to prevent the contact area with the disk rotor 4 from becoming large, and the runout accuracy of the disk rotor 4, particularly the runout accuracy with respect to the bending of the flange 11 in the surface direction, from decreasing.
【００２７】また、ハブホイール１のフランジ１１の各
ボルト挿通孔４１の外周近傍を薄肉部４３としたことに
より、ハブホイールの軽量化が図れる。しかも、各ボル
ト挿通孔４１の外周近傍を除く各ボルト挿通孔４１を含
んで内周側の肉厚は薄くしないため、軽量化を図りなが
らも、フランジの曲げ剛性が低下するのを防止できる。
すなわち、車両旋廻時の横荷重や、車両が上下動する瞬
間にハブユニットに作用する曲げモーメントに対する剛
性が低下するのを防止できる。この結果、切り欠き部４
２を形成した場合でも、切り欠きのない略円形のフラン
ジを有したハブホイールの曲げ剛性と殆ど差が生じな
い。The hub wheel can be made lighter by forming the thin wall portion 43 in the vicinity of the outer periphery of each bolt insertion hole 41 of the flange 11 of the hub wheel 1. Moreover, since the wall thickness on the inner peripheral side including the bolt insertion holes 41 excluding the vicinity of the outer periphery of each bolt insertion hole 41 is not thinned, it is possible to prevent the bending rigidity of the flange from decreasing while reducing the weight.
That is, it is possible to prevent a decrease in rigidity with respect to a lateral load at the time of turning the vehicle and a bending moment acting on the hub unit at the moment when the vehicle vertically moves. As a result, the notch 4
Even when No. 2 is formed, there is almost no difference from the bending rigidity of the hub wheel having a substantially circular flange with no notch.
【００２８】なお、本発明は、前記実施の形態に限定さ
れるものではなく、各種応用や変形が考えられる。The present invention is not limited to the above embodiment, and various applications and modifications are conceivable.
【００２９】（１）前記実施の形態は、自動車の駆動輪
側に関するものであったが、従動輪側のハブホイール１
に本発明の構成を適用してもよい。もちろん、転がり軸
受２等の構成も、前記実施の形態のものに限らない。例
えば、軸受の車両アウタ側の内輪をハブホイール１とは
別体としたものや、転動体がころからなる軸受等でもあ
ってもよい。(1) In the above-described embodiment, the drive wheel side of the automobile is used.
The configuration of the present invention may be applied to. Of course, the configurations of the rolling bearing 2 and the like are not limited to those in the above-described embodiment. For example, the inner ring on the vehicle outer side of the bearing may be separate from the hub wheel 1, or the rolling element may be a bearing having rollers.
【００３０】（２）前記実施の形態のように、ハブホイ
ール１は、四箇所にて固定するものに限らない。三箇所
や五箇所以上にてディスクロータ４および車輪にボルト
止めするものであってもよい。(2) The hub wheel 1 is not limited to the one fixed at four points as in the above-mentioned embodiment. It may be bolted to the disc rotor 4 and the wheel at three or five or more locations.
【００３１】（３）切り欠き部４２は、ボルト挿通孔４
１のピッチ円直径Ａより内径側で隣接するボルト挿通孔
４１の中心を結ぶ弦Ｂにその最深部４２ａが近接するも
のであればよく、大きさならびに形状は、前記実施の形
態に示したものに限らない。例えば、切り欠き部４２は
Ｒ形状のものに限らない。(3) The notch 42 is formed in the bolt insertion hole 4
It is sufficient that the deepest part 42a is close to the chord B connecting the centers of the bolt insertion holes 41 adjacent to each other on the inner diameter side of the pitch circle diameter A of No. 1, and the size and shape are those shown in the above-mentioned embodiment. Not limited to For example, the notch 42 is not limited to the R shape.
【００３２】しかも、切り欠き部４２は、各ボルト挿通
孔４１間に形成されているものに限るものではなく、例
えば、各々のボルト挿通孔４１間に間欠的に形成されて
いてもよく、あるいは、１箇所のみに形成されており、
ハブホイール１を適宜回転させてボルト３９を締結する
ものであってもよい。Moreover, the cutouts 42 are not limited to those formed between the respective bolt insertion holes 41, and may be formed intermittently between the respective bolt insertion holes 41, or It is formed only in one place,
The hub wheel 1 may be appropriately rotated to fasten the bolt 39.
【００３３】（４）本発明は、フランジ１１に切り欠き
部４２を形成したものであればよく、前記実施の形態の
ように、フランジ１１のボルト挿通孔４１の外周近傍を
薄肉部４３とする点については必須要件ではない。すな
わち、フランジ１１の肉厚を薄くしないものであっても
よい。(4) In the present invention, the notch 42 may be formed in the flange 11, and the thin portion 43 is formed in the vicinity of the outer periphery of the bolt insertion hole 41 of the flange 11 as in the above embodiment. Points are not an essential requirement. That is, the thickness of the flange 11 may not be reduced.
【００３４】[0034]
【発明の効果】本発明の車軸用軸受装置によれば、ハブ
ホイールのフランジの外周に、ボルト挿通孔のピッチ円
直径より内径側で隣接するボルト挿通孔の中心を結ぶ弦
にその最深部が近接する切り欠き部を形成したので、ハ
ブホイールにて邪魔されることなく円滑にボルト止め作
業が行えると共に、切り欠き部を形成したことにより、
ハブホイールの軽量・小型化が図れる。According to the bearing device for an axle of the present invention, the deepest portion is formed on the outer periphery of the flange of the hub wheel on the chord connecting the centers of the bolt through holes adjacent on the inner diameter side of the pitch circle diameter of the bolt through holes. Since the notch parts that are close to each other are formed, it is possible to perform bolting work smoothly without being hindered by the hub wheel, and by forming the notch parts,
The hub wheel can be made lighter and smaller.
【００３５】また、ハブホイールのフランジのボルト挿
通孔の周辺を避けて該ボルト挿通孔間に切り欠き部を形
成したことで、ハブホイールのフランジをディスクブレ
ーキ装置のディスクロータにボルト止めした際に、ディ
スクロータとの接触面積が大きくなり、ディスクロータ
の振れ精度が低下するのを防止できる。Further, since the notch is formed between the bolt insertion holes in the flange of the hub wheel while avoiding the periphery of the bolt insertion hole, when the flange of the hub wheel is bolted to the disc rotor of the disc brake device. Therefore, it is possible to prevent the contact area with the disk rotor from increasing and the runout accuracy of the disk rotor from decreasing.
【００３６】さらに、ハブホイールのフランジの各ボル
ト挿通孔の外周近傍の肉厚を薄くしたことにより、ハブ
ホイールの軽量化が図れる。しかも、各ボルト挿通孔の
外周近傍を除く各ボルト挿通孔を含んで内周側の肉厚は
薄くしないため、軽量化を図りながらも、フランジの曲
げ剛性が低下するのを防止できるという効果が得られ
る。Furthermore, the hub wheel can be made lighter by reducing the wall thickness in the vicinity of the outer periphery of each bolt insertion hole of the flange of the hub wheel. Moreover, since the wall thickness on the inner peripheral side including each bolt insertion hole except for the vicinity of the outer periphery of each bolt insertion hole is not thinned, it is possible to prevent the bending rigidity of the flange from decreasing while reducing the weight. can get.
【図１】本発明の実施の形態における車軸用軸受装置の
断面図である。FIG. 1 is a cross-sectional view of a bearing device for an axle according to an embodiment of the present invention.
【図２】本発明の実施の形態におけるハブホイールの正
面図である。FIG. 2 is a front view of the hub wheel according to the embodiment of the present invention.
【図３】本発明の実施の形態におけるハブホイールの断
面図である。FIG. 3 is a cross-sectional view of the hub wheel according to the embodiment of the present invention.
１ ハブホイール ２ 転がり軸受 ４ ディスクロータ ５ 車体 １１ フランジ １３，３９ ボルト ２１ 外輪 ２４ 取付片 ４１ ボルト挿通孔 ４２ 切り欠き部 ４３ 薄肉部 ４４ 厚肉部 1 hub wheel 2 Rolling bearing 4 disc rotor 5 car body 11 flange 13,39 volts 21 outer ring 24 mounting pieces 41 Bolt insertion hole 42 Notch 43 Thin part 44 Thick part
Claims (2)
フランジを車輪にボルト止めしてなるハブホイールと、
前記ハブホイールの外周面に設けられ該ハブホイールを
前記車体に対して回転自在に支持した軸受とを備え、 前記軸受は、前記ハブホイールの外周面に設けた内輪
と、外周面に前記車体にボルト止めする取付片を有した
外輪と、前記内輪と前記外輪の間に介装した転動体とか
らなり、 前記ハブホイールのフランジの外周において前記ボルト
挿通孔の周辺を避けて該ボルト挿通孔間に、該ボルト挿
通孔のピッチ円直径より内径側で隣接するボルト挿通孔
の中心を結ぶ弦にその最深部が近接する切り欠き部を形
成した車軸用軸受装置。1. A hub wheel comprising a flange having a bolt insertion hole projecting on an outer peripheral surface thereof and bolted to a wheel.
A bearing that is provided on the outer peripheral surface of the hub wheel and rotatably supports the hub wheel with respect to the vehicle body, wherein the bearing has an inner ring provided on the outer peripheral surface of the hub wheel and the vehicle body on the outer peripheral surface. An outer ring having a mounting piece for bolting and a rolling element interposed between the inner ring and the outer ring, and between the bolt insertion holes while avoiding the periphery of the bolt insertion hole on the outer periphery of the flange of the hub wheel. A bearing device for an axle, wherein a notch portion whose deepest portion is close to a chord connecting the centers of adjacent bolt insertion holes on the inner diameter side of the pitch circle diameter of the bolt insertion hole is formed.
孔の外周近傍の肉厚を薄くしたことを特徴とする請求項
１記載の車軸用軸受装置。2. The bearing device for an axle according to claim 1, wherein the thickness of the flange of the hub wheel in the vicinity of the outer periphery of each bolt insertion hole is thin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001293494A JP5050306B2 (en) | 2001-09-26 | 2001-09-26 | Axle bearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001293494A JP5050306B2 (en) | 2001-09-26 | 2001-09-26 | Axle bearing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003094905A true JP2003094905A (en) | 2003-04-03 |
| JP5050306B2 JP5050306B2 (en) | 2012-10-17 |
Family
ID=19115269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001293494A Expired - Fee Related JP5050306B2 (en) | 2001-09-26 | 2001-09-26 | Axle bearing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5050306B2 (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005096681A (en) * | 2003-09-26 | 2005-04-14 | Koyo Seiko Co Ltd | Rolling bearing device |
| EP1500524A3 (en) * | 2003-07-25 | 2005-10-12 | Ntn Corporation | Wheel support bearing assembly |
| JP2005351408A (en) * | 2004-06-11 | 2005-12-22 | Ntn Corp | Bearing device for wheel with rotary sensor |
| WO2007051452A1 (en) * | 2005-11-03 | 2007-05-10 | Schaeffler Kg | Wheel hub comprising axial recesses formed between the holes for wheel nuts |
| JP2007131164A (en) * | 2005-11-10 | 2007-05-31 | Ntn Corp | Bearing device for wheel |
| JP2007145203A (en) * | 2005-11-29 | 2007-06-14 | Ntn Corp | Bearing device for wheel |
| JP2007518617A (en) * | 2003-12-18 | 2007-07-12 | シエフレル・コマンデイトゲゼルシヤフト | Wheel bearing module on wheel carrier |
| WO2007051453A3 (en) * | 2005-11-03 | 2007-07-26 | Schaeffler Kg | Wheel hub comprising axial recesses formed between the holes for wheel nuts |
| JP2007186029A (en) * | 2006-01-12 | 2007-07-26 | Jtekt Corp | Rolling bearing device for wheel |
| WO2008053831A1 (en) | 2006-10-30 | 2008-05-08 | Jtekt Corporation | Rolling bearing device for wheel |
| WO2009060605A1 (en) * | 2007-11-06 | 2009-05-14 | Ntn Corporation | Bearing device for wheel |
| JP2009255751A (en) * | 2008-04-17 | 2009-11-05 | Nsk Ltd | Metallic member with outward flange part, and manufacturing method therefor |
| JP2011093373A (en) * | 2009-10-28 | 2011-05-12 | Nsk Ltd | Hub for in-wheel motor, and in-wheel motor |
| US8308371B2 (en) | 2005-11-07 | 2012-11-13 | Ntn Corporation | Bearing apparatus for a wheel of vehicle |
| US8465210B2 (en) * | 2007-09-25 | 2013-06-18 | Jtekt Corporation | Rolling bearing unit for wheel |
| EP2703184A1 (en) * | 2012-08-28 | 2014-03-05 | Jtekt Corporation | Bearing unit |
| EP2673526B1 (en) | 2011-02-10 | 2015-07-01 | BPW Bergische Achsen KG | Wheel bearing for a vehicle wheel, and wheel hub for fastening a vehicle wheel |
| JP2016128324A (en) * | 2016-03-04 | 2016-07-14 | 株式会社ジェイテクト | Vehicle hub unit |
| JP2018039428A (en) * | 2016-09-08 | 2018-03-15 | Ntn株式会社 | Bearing device for vehicle |
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|---|---|---|---|---|
| EP1500524A3 (en) * | 2003-07-25 | 2005-10-12 | Ntn Corporation | Wheel support bearing assembly |
| JP2005096681A (en) * | 2003-09-26 | 2005-04-14 | Koyo Seiko Co Ltd | Rolling bearing device |
| JP2007518617A (en) * | 2003-12-18 | 2007-07-12 | シエフレル・コマンデイトゲゼルシヤフト | Wheel bearing module on wheel carrier |
| JP2005351408A (en) * | 2004-06-11 | 2005-12-22 | Ntn Corp | Bearing device for wheel with rotary sensor |
| JP4675063B2 (en) * | 2004-06-11 | 2011-04-20 | Ｎｔｎ株式会社 | Wheel bearing device with rotation sensor |
| US7631948B2 (en) | 2005-11-03 | 2009-12-15 | Schaeffler Kg | Wheel hub comprising axial recesses formed between the holes for wheel nuts |
| WO2007051452A1 (en) * | 2005-11-03 | 2007-05-10 | Schaeffler Kg | Wheel hub comprising axial recesses formed between the holes for wheel nuts |
| WO2007051453A3 (en) * | 2005-11-03 | 2007-07-26 | Schaeffler Kg | Wheel hub comprising axial recesses formed between the holes for wheel nuts |
| US7871134B2 (en) | 2005-11-03 | 2011-01-18 | Schaeffler Kg | Wheel hub comprising axial recesses formed between the holes for lug bolts |
| US8308371B2 (en) | 2005-11-07 | 2012-11-13 | Ntn Corporation | Bearing apparatus for a wheel of vehicle |
| JP2007131164A (en) * | 2005-11-10 | 2007-05-31 | Ntn Corp | Bearing device for wheel |
| JP2007145203A (en) * | 2005-11-29 | 2007-06-14 | Ntn Corp | Bearing device for wheel |
| JP2007186029A (en) * | 2006-01-12 | 2007-07-26 | Jtekt Corp | Rolling bearing device for wheel |
| EP2572899A1 (en) | 2006-10-30 | 2013-03-27 | Jtekt Corporation | Rolling bearing device for wheel |
| US8746985B2 (en) | 2006-10-30 | 2014-06-10 | Jtekt Corporation | Rolling bearing device for wheel |
| WO2008053831A1 (en) | 2006-10-30 | 2008-05-08 | Jtekt Corporation | Rolling bearing device for wheel |
| US8465210B2 (en) * | 2007-09-25 | 2013-06-18 | Jtekt Corporation | Rolling bearing unit for wheel |
| DE112008002882T5 (en) | 2007-11-06 | 2010-09-16 | Ntn Corp. | Wheel bearing device for a vehicle |
| JP2009113635A (en) * | 2007-11-06 | 2009-05-28 | Ntn Corp | Wheel bearing device |
| US8568036B2 (en) | 2007-11-06 | 2013-10-29 | Ntn Corporation | Wheel bearing apparatus for a vehicle |
| WO2009060605A1 (en) * | 2007-11-06 | 2009-05-14 | Ntn Corporation | Bearing device for wheel |
| DE112008002882B4 (en) | 2007-11-06 | 2020-07-30 | Ntn Corp. | Wheel bearing device for a vehicle |
| JP2009255751A (en) * | 2008-04-17 | 2009-11-05 | Nsk Ltd | Metallic member with outward flange part, and manufacturing method therefor |
| JP2011093373A (en) * | 2009-10-28 | 2011-05-12 | Nsk Ltd | Hub for in-wheel motor, and in-wheel motor |
| EP2673526B1 (en) | 2011-02-10 | 2015-07-01 | BPW Bergische Achsen KG | Wheel bearing for a vehicle wheel, and wheel hub for fastening a vehicle wheel |
| EP2703184A1 (en) * | 2012-08-28 | 2014-03-05 | Jtekt Corporation | Bearing unit |
| US8814435B2 (en) | 2012-08-28 | 2014-08-26 | Jtekt Corporation | Bearing unit |
| JP2016128324A (en) * | 2016-03-04 | 2016-07-14 | 株式会社ジェイテクト | Vehicle hub unit |
| JP2018039428A (en) * | 2016-09-08 | 2018-03-15 | Ntn株式会社 | Bearing device for vehicle |
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