JP2004360817A - Boot for constant velocity universal joint - Google Patents

Boot for constant velocity universal joint Download PDF

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Publication number
JP2004360817A
JP2004360817A JP2003161063A JP2003161063A JP2004360817A JP 2004360817 A JP2004360817 A JP 2004360817A JP 2003161063 A JP2003161063 A JP 2003161063A JP 2003161063 A JP2003161063 A JP 2003161063A JP 2004360817 A JP2004360817 A JP 2004360817A
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JP
Japan
Prior art keywords
constant velocity
boot
velocity joint
outer casing
universal joint
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.)
Pending
Application number
JP2003161063A
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Japanese (ja)
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JP2004360817A5 (en
Inventor
Kazuhiko Sueoka
一彦 末岡
Koji Takada
康二 高田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fukoku Co Ltd
Fukoku KK
Original Assignee
Fukoku Co Ltd
Fukoku KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Priority to JP2003161063A priority Critical patent/JP2004360817A/en
Publication of JP2004360817A publication Critical patent/JP2004360817A/en
Publication of JP2004360817A5 publication Critical patent/JP2004360817A5/ja
Pending legal-status Critical Current

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  • Diaphragms And Bellows (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the engagement of an edge part of an outer casing of a constant velocity universal joint with an inner face of a boot for the constant velocity universal joint. <P>SOLUTION: This boot for the constant velocity universal joint is composed of a large end part to which the outer casing of the constant velocity universal joint is inserted, a small end part to which a shaft part connected with the constant velocity universal joint is inserted, and bellows formed between the large end part and the small end part, the large end part has a face part faced to an end face of a tip part of the outer casing of the constant velocity universal joint, and a part faced to an end face inner peripheral part of the tip part of the outer casing, of the face part is recessed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、例えば自動車のディファレンシャル（デフ）ギアから車軸ハブへ動力を伝達するドライブシャフト（動力伝達軸）等に備えられる等速ジョイント（Ｃｏｎｓｔａｎｔ Ｖｅｌｏｃｉｔｙ Ｕｎｉｖｅｒｓａｌ Ｊｏｉｎｔ）を保護するためのブーツに関し、特に、等速ジョイントの外筐の端面部のシャープエッジによるブーツの損傷防止に関する。
【０００２】
【従来の技術】
例えば自動車用のドライブシャフトには、その両端部に等速ジョイントが用いられる。そして、等速ジョイントを潤滑するためのグリースを封入するとともに、外部からの埃や水等の異物の浸入を防ぐため、等速ジョイントの屈曲部をカバーする可撓性のブーツが装着される。このようなブーツは、通常その大端部および小端部を、それぞれデフ側またはハブ側の等速ジョイントの外筐の外周面と、ドライブシャフト軸部の外周面とにそれぞれバンド等の締結手段によって締結することによって固定される。（例えば、特許文献１を参照。）
【０００３】
また、等速ジョイント用ブーツの大端部と、等速ジョイントの外筐とが、軸方向にずれることを防ぐため、ブーツの大端部内周側に、等速ジョイントの外筐の先端部の端面と対向する面部を形成することが知られている。
【０００４】
【特許文献１】
特開２００２−３９２０８号公報（第１頁、図１等）
【０００５】
【発明が解決しようとする課題】
しかし、上述したような等速ジョイント用のブーツにおいて、筒状に形成された等速ジョイントの外筐（ケーシング）の先端部の内周縁部と、ブーツの内面とが、等速ジョイント用ブーツが、サスペンションのストロークや、ステアリング操作に起因するドライブシャフトの曲がりに随伴して屈伸すると、等速ジョイントの外筐の先端部の端面と接するブーツの内周面が、等速ジョイントの外筐の先端部に押し当てられていわゆる「噛み込み」が生じる場合がある。このような噛み込みが生じ得る場合には、等速ジョイントの外筐の先端部の機械加工によるシャープエッジやバリによってブーツが損傷を受けないよう配慮が必要となる。
上述した問題に鑑み、本発明の課題は、等速ジョイント用ブーツの内面への、等速ジョイントの外筐のエッジ部の噛み込みを防止することにある。
【０００６】
【課題を解決する手段】
本発明は、等速ジョイントの外筐が挿入される大端部と、この等速ジョイントに接続された軸部が挿入される小端部と、大端部と小端部との間に形成されたベローズとを有して構成される等速ジョイント用ブーツであって、大端部は、等速ジョイントの外筐の先端部の端面と対向する面部を有してなり、この面部は、前記外筐の先端部の端面内周部に対向する部分を凹ませて形成したことを特徴とする等速ジョイント用ブーツによって上述した課題を解決する。
【０００７】
本発明によれば、等速ジョイント用ブーツの内面と、シャープエッジやバリが形成されやすい等速ジョイントの外筐の内周縁部との間に隙間が形成される。そして、ブーツを所定の最大曲げ角度に曲げたときにもこの隙間が０にならないように、面部の形状を適宜設定することによって、ブーツの曲げに関わらず、ブーツの内面とシャープエッジとが接触しないようにすることができ、噛み込みの発生を防止できるから、等速ジョイント用ブーツの内面への、等速ジョイントの外筐のエッジ部の噛み込みを防止することができる。
【０００８】
【発明の実施の形態】
以下、本発明を適用してなる等速ジョイント用ブーツの一実施形態について説明する。図１は、本実施形態の等速ジョイント用ブーツの外観を示す立面図である。図１に示すように、ブーツ１は全体を筒状に形成され、等速ジョイント側に固定される大端部３と、この等速ジョイントに接続されたドライブシャフトの軸部側に固定される小端部５とを有する。そして、大端部３と小端部５との間には、可撓性を有し屈曲可能に構成された蛇腹状のベローズ７が形成されている。なお、本実施形態の場合には、ブーツ１は、例えば熱可塑性のポリエステル系エラストマ等の弾性を有する樹脂から形成される。
【０００９】
ベローズ７は、ブーツ１の筒軸方向すなわち図１における上下方向に、周方向に延在する凸状部７ａおよび凹状部７ｂが繰り返し配列されて構成されている。すなわち、凸状部７ａにおいては、ベローズ７の断面は外周側に凸となり、凹状部７ｂにおいては、ベローズ７の断面は内周側に凸となる。本実施形態の場合には、例えば５つの凸状部７ａが設けられ、各７ａのそれぞれ大端部３側に対応する凹状部７ｂが設けられている。そして、各凸状部７ａおよび凹状部７ｂは、それぞれ小端部５側から大端部３側に向かうにつれて径が大きく設定され、その結果、ベローズ７は、全体として略円錐状に形成されている。
【００１０】
大端部３の側部外周面には、軸方向にわたって略一定の外径に形成された面部９が設けられている。この面部９には、ブーツ１を等速ジョイントである図示しないトリポッドジョイントの外筐の外周面部に締結するための図示しないバンドが装着される。なお、トリポッドジョイントとは、等速ジョイントの一種であり、軸の周まわりに三叉錠に配列されたころが設けられ、ケーシングまたは外筐の内周側に、これらのころが摺動する溝部が形成されてなるものをいう。また、面部９のブーツ１の筒軸方向の小端部５側の端は、バンドが軸方向にずれることを防止するための段部１１が形成されている。
【００１１】
図２は、本実施形態の等速ジョイント用ブーツ１の大端部３に、等速ジョイントの外筐を挿入した状態を示す拡大断面図である。等速ジョイントの外筐１３の、大端部３に挿入される側の先端部１５は、円筒状に形成され、その周上３箇所に、トリポッドジョイントの特徴である凹部が形成される。そして、この先端部１５の内周面１７は、上述した凹部の内面を除き、筒軸方向にわたって一定の内径に形成されている。一方、先端部１５は、ブーツ１の筒軸方向小端部５側に向いた環状の端面１９を有する。そして、端面１９の外周縁部から先端部１５の側面にかけては、先細りのテーパ部２１が形成されている。端面１９とテーパ部２１との境界部には、Ｒ面取りが施されている。テーパ部２１のさらに後方すなわち図２に向かって左側においては、一定の外径を有する平行部２３、後方側へ向かうにつれて徐々に外径を小さく形成されたテーパ部２５、テーパ部２５の後端部と外径を略同じくする平行部２７が、先端側から順に形成されている。
【００１２】
一方、図２に示すように、ブーツ１の大端部３の内面にも、上述した端面１９、テーパ部２１、平行部２３、テーパ部２５および平行部２７にそれぞれ適合する形状の面部が形成されるが、等速ジョイントの外筐１３の端面１９に対向するブーツ１側の環状面部３１は、その内周縁部または最小径部３３の径が、外筐１３の端面１９の最小径よりも大きく形成されている。そして、ブーツ１の内面の、環状面部３１よりも内周側の領域には、環状面部３１よりも、ブーツ１の筒軸方向において小端部５側に凹んで形成された環状の凹面部３４が形成されている。凹面部３４は、図２に示すように段面視形状を円弧状とする凹面状に形成されている。凹面部３４が環状面部３１と接する境界部は、角を有するエッジ状に形成され、例えば環状面部３１と凹面部３４との境界部では、これら両面は、例えば約４５度程度の角度を付けられている。一方、凹面部３４の最内周部においては、ブーツ１の筒軸に対し直交する面に対しわずかな傾きを有するテーパ状に形成されている。このような凹面部３４を形成したことによって、等速ジョイントの外筐１３の端面１９と、凹面部３４との間には、環状の隙間である逃げ部３５が形成されている。
【００１３】
図２に示すように、凹面部３４の内周縁よりも内周側のブーツ１の内面の領域は、断面視形状が円弧状となる凸面に形成され、この凸面部の内周縁部３７から段状に拡径して設けられた段部３９を介してベローズ７の内周面と接している。
【００１４】
図３は、本実施形態の等速ジョイント用ブーツ１の大端部３に等速ジョイントの外筐１３が挿入された状態で、ベローズ７に曲げを加えた状態を示す断面図である。なお、この図は、大端部３の軸方向を固定し、小端部５の軸方向を、図３に向かって時計周りにずらした状態を示している。そして、この小端部５の軸方向と、大端部３の軸方向とがなす角度は、例えば本実施形態の等速ジョイント用ブーツが装着される等速ジョイントの、最大曲げ角度である。また、図４は、図３のＩＶ部拡大断面図である。なお、図４において、ブーツ１に曲げを加える前の輪郭線を、参考のために破線にて図示する。図４に示すように、この状態においても、ブーツ１の大端部３の内面である凹面部３４は、等速ジョイントの外筐１３の端面１９と、図２に示す状態より間隔は小さくなっているものの、接触せずに間隔を隔てて対向している。なお、図４に示すように、凹面部３４の最大径部における径ｒ１は、端面１９の内径ｒ２よりも大きく設定されている。
【００１５】
以上のように、本実施形態によれば、等速ジョイント用ブーツ１の内面と、シャープエッジやバリが形成されやすい等速ジョイントの外筐１３の端面１９の内周縁部３６との間に空間部である逃げ部３５が形成される。そして、この逃げ部３５の間隔が、ブーツ１を所定の最大曲げ角度に曲げたときにも０にならないように凹面部３４を形成しているから、ブーツ１の曲げに関わらず、ブーツ１の内面３４等と端面１９の内周縁部３６とが接触しないようにすることができ、等速ジョイント用ブーツ１の内面への、等速ジョイントの外筐１３のエッジ部の噛み込みを防止することができる。
【００１６】
なお、本発明は上述した実施形態に限定されるものではなく、発明の範囲内で適宜変更を加えることが可能である。例えば、等速ジョイントの外筐の形状や、大端部の形状を変更してもよい。また、ベローズや小端部の形状も適宜変更が可能である。さらに、本実施形態では、ブーツは樹脂によって形成されているが、例えば大端部の内周側のグロメット部をブーツ本体の樹脂よりも低硬度の樹脂またはゴムによって別体として形成してもよい。また、ブーツ全体を、この低高度の樹脂のみまたはゴムのみによって、一体に形成してもよい。
【００１７】
【発明の効果】
本発明によれば、等速ジョイント用ブーツの内面への、等速ジョイントの外筐のエッジ部の噛み込みを防止することができる。
【図面の簡単な説明】
【図１】本発明を適用してなる等速ジョイント用ブーツの一実施形態の縦断面図である。
【図２】図１の等速ジョイント用ブーツの大端部に等速ジョイントの外筐を挿入したときの拡大断面図である。
【図３】図１の等速ジョイント用ブーツの大端部に等速ジョイントの外筐が挿入された状態で、ブーツに曲げが加わった状態を示す図である。
【図４】図３のＩＶ部拡大断面図である。
【符号の説明】
１ 等速ジョイント用ブーツ
３ 大端部
５ 小端部
７ ベローズ
７ａ 凸状部
７ｂ 凹状部
１３ 等速ジョイントの外筐
１９ 端面
３１ 環状面部
３４ 凹面部
３５ 逃げ部（隙間）[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a boot for protecting a constant velocity universal joint provided on a drive shaft (power transmission shaft) for transmitting power from a differential (differential) gear of an automobile to an axle hub, and more particularly, to a boot for protecting a constant velocity universal joint. The present invention relates to prevention of damage to a boot due to a sharp edge of an end surface of an outer casing of a constant velocity joint.
[0002]
[Prior art]
For example, a drive shaft for an automobile uses constant velocity joints at both ends. A grease for lubricating the constant velocity joint is sealed therein, and a flexible boot covering the bent portion of the constant velocity joint is mounted to prevent foreign substances such as dust and water from entering from outside. Such boots usually have a large end portion and a small end portion respectively connected to the outer peripheral surface of the outer casing of the constant velocity joint on the differential side or the hub side and the outer peripheral surface of the drive shaft shaft portion by means of fastening means such as a band. Fixed by fastening. (For example, see Patent Document 1)
[0003]
In addition, in order to prevent the large end of the constant velocity joint boot and the outer casing of the constant velocity joint from being displaced in the axial direction, the leading end of the outer casing of the constant velocity joint is provided on the inner peripheral side of the large end of the boot. It is known to form a surface facing the end face.
[0004]
[Patent Document 1]
JP-A-2002-39208 (page 1, FIG. 1 and the like)
[0005]
[Problems to be solved by the invention]
However, in the boot for a constant velocity joint as described above, the inner peripheral edge of the tip of the outer casing (casing) of the cylindrical constant velocity joint and the inner surface of the boot are different from each other. When the bending of the drive shaft caused by the suspension stroke or the steering operation is performed, the inner peripheral surface of the boot in contact with the end surface of the distal end of the outer casing of the constant velocity joint becomes the tip of the outer casing of the constant velocity joint. The so-called "biting" may be caused by being pressed against the part. If such biting can occur, care must be taken to prevent the boot from being damaged by sharp edges or burrs formed by machining the tip of the outer casing of the constant velocity joint.
In view of the above-mentioned problem, an object of the present invention is to prevent the inner edge of the constant velocity joint boot from being caught by the edge of the outer casing of the constant velocity joint.
[0006]
[Means to solve the problem]
According to the present invention, a large end into which an outer casing of a constant velocity joint is inserted, a small end into which a shaft connected to the constant velocity joint is inserted, and a large end and a small end are formed between the large end and the small end. A constant velocity joint boot having a bellows and a large end portion having a surface portion facing an end surface of a distal end portion of an outer casing of the constant velocity joint, and this surface portion is The above-mentioned object is achieved by a constant velocity joint boot characterized in that a portion facing the inner peripheral portion of the end face of the distal end portion of the outer casing is recessed.
[0007]
According to the present invention, a gap is formed between the inner surface of the constant velocity joint boot and the inner peripheral edge of the outer casing of the constant velocity joint where sharp edges and burrs are easily formed. The shape of the surface portion is appropriately set so that the gap does not become zero even when the boot is bent at a predetermined maximum bending angle, so that the inner surface of the boot and the sharp edge are in contact regardless of the bending of the boot. Since it is possible to prevent the occurrence of biting, it is possible to prevent the edge of the outer casing of the constant velocity joint from biting into the inner surface of the constant velocity joint boot.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of a constant velocity joint boot according to the present invention will be described. FIG. 1 is an elevation view showing the appearance of the constant velocity joint boot of the present embodiment. As shown in FIG. 1, the boot 1 is formed in a cylindrical shape as a whole, and is fixed to a large end portion 3 fixed to a constant velocity joint side and to a shaft side of a drive shaft connected to the constant velocity joint. And a small end 5. Further, between the large end 3 and the small end 5, a bellows 7 having a bellows shape, which is flexible and bendable, is formed. In the case of the present embodiment, the boot 1 is formed from an elastic resin such as a thermoplastic polyester elastomer.
[0009]
The bellows 7 is configured such that convex portions 7a and concave portions 7b extending in the circumferential direction are repeatedly arranged in the cylinder axis direction of the boot 1, that is, in the vertical direction in FIG. That is, in the convex portion 7a, the cross section of the bellows 7 is convex toward the outer peripheral side, and in the concave portion 7b, the cross section of the bellows 7 is convex in the inner peripheral side. In the case of the present embodiment, for example, five convex portions 7a are provided, and a concave portion 7b corresponding to the large end 3 side of each 7a is provided. The diameter of each of the convex portions 7a and the concave portions 7b is set to be larger as going from the small end portion 5 side to the large end portion 3 side. As a result, the bellows 7 is formed in a substantially conical shape as a whole. I have.
[0010]
The outer peripheral surface of the side of the large end portion 3 is provided with a surface portion 9 having a substantially constant outer diameter in the axial direction. A band (not shown) for fastening the boot 1 to an outer peripheral surface of an outer casing of a tripod joint (not shown), which is a constant velocity joint, is attached to the surface portion 9. Note that the tripod joint is a type of constant velocity joint, in which rollers arranged in a trifurcated lock are provided around the circumference of the shaft, and a groove portion on which these rollers slide is provided on the inner peripheral side of the casing or the outer casing. It refers to what is formed. Further, a step portion 11 for preventing the band from shifting in the axial direction is formed at the end of the surface portion 9 on the small end portion 5 side of the boot 1 in the cylinder axis direction.
[0011]
FIG. 2 is an enlarged sectional view showing a state where an outer casing of the constant velocity joint is inserted into the large end 3 of the constant velocity joint boot 1 of the present embodiment. The distal end portion 15 of the outer casing 13 of the constant velocity joint on the side to be inserted into the large end portion 3 is formed in a cylindrical shape, and concave portions characteristic of a tripod joint are formed at three places on the periphery thereof. The inner peripheral surface 17 of the distal end portion 15 is formed to have a constant inner diameter in the cylinder axis direction, except for the inner surface of the above-described concave portion. On the other hand, the tip portion 15 has an annular end face 19 facing the small end portion 5 side of the boot 1 in the cylinder axis direction. A tapered portion 21 is formed from the outer peripheral edge of the end surface 19 to the side surface of the distal end portion 15. The boundary between the end face 19 and the tapered portion 21 is rounded. Further behind the tapered portion 21, that is, on the left side as viewed in FIG. 2, a parallel portion 23 having a constant outer diameter, a tapered portion 25 having an outer diameter gradually reduced toward the rear side, and a rear end of the tapered portion 25 Parallel portions 27 having substantially the same outer diameter as the portion are formed in order from the front end side.
[0012]
On the other hand, as shown in FIG. 2, the inner surface of the large end 3 of the boot 1 is also formed with a surface portion having a shape conforming to the end surface 19, the tapered portion 21, the parallel portion 23, the taper portion 25, and the parallel portion 27. However, the annular surface portion 31 on the boot 1 side facing the end surface 19 of the outer casing 13 of the constant velocity joint has an inner peripheral edge or a minimum diameter portion 33 whose diameter is smaller than the minimum diameter of the end surface 19 of the outer casing 13. It is formed large. In the inner surface of the boot 1 on the inner peripheral side of the annular surface portion 31, an annular concave portion 34 formed to be recessed toward the small end portion 5 in the cylinder axis direction of the boot 1 relative to the annular surface portion 31. Is formed. As shown in FIG. 2, the concave surface portion 34 is formed in a concave shape having an arc shape as viewed from the stepped surface. A boundary portion where the concave surface portion 34 contacts the annular surface portion 31 is formed in an edge shape having a corner. For example, at a boundary portion between the annular surface portion 31 and the concave surface portion 34, these two surfaces are formed at an angle of about 45 degrees, for example. ing. On the other hand, the innermost peripheral portion of the concave portion 34 is formed in a tapered shape having a slight inclination with respect to a plane orthogonal to the cylinder axis of the boot 1. By forming such a concave portion 34, a relief portion 35 which is an annular gap is formed between the end surface 19 of the outer casing 13 of the constant velocity joint and the concave portion 34.
[0013]
As shown in FIG. 2, a region of the inner surface of the boot 1 on the inner peripheral side of the inner peripheral edge of the concave surface portion 34 is formed as a convex surface having an arcuate cross-sectional shape, and a step from the inner peripheral edge 37 of the convex surface portion. It is in contact with the inner peripheral surface of the bellows 7 via a step portion 39 provided with an enlarged diameter.
[0014]
FIG. 3 is a cross-sectional view showing a state in which the bellows 7 is bent with the outer casing 13 of the constant velocity joint inserted into the large end 3 of the constant velocity joint boot 1 of the present embodiment. This figure shows a state in which the axial direction of the large end 3 is fixed and the axial direction of the small end 5 is shifted clockwise toward FIG. The angle between the axial direction of the small end portion 5 and the axial direction of the large end portion 3 is, for example, the maximum bending angle of the constant velocity joint to which the constant velocity joint boot of the present embodiment is attached. FIG. 4 is an enlarged sectional view of a portion IV in FIG. In FIG. 4, a contour line before bending the boot 1 is illustrated by a broken line for reference. As shown in FIG. 4, even in this state, the distance between the concave surface 34 which is the inner surface of the large end 3 of the boot 1 and the end surface 19 of the outer casing 13 of the constant velocity joint is smaller than that shown in FIG. However, they face each other at intervals without contact. In addition, as shown in FIG. 4, the diameter r1 at the largest diameter portion of the concave surface portion 34 is set to be larger than the inner diameter r2 of the end face 19.
[0015]
As described above, according to the present embodiment, the space between the inner surface of the constant velocity joint boot 1 and the inner peripheral edge portion 36 of the end surface 19 of the outer casing 13 of the constant velocity joint in which sharp edges and burrs are easily formed. An escape portion 35 is formed. The concave portion 34 is formed so that the space between the escape portions 35 does not become 0 even when the boot 1 is bent at a predetermined maximum bending angle. The inner surface 34 and the like and the inner peripheral edge 36 of the end surface 19 can be prevented from contacting each other, and the edge of the outer casing 13 of the constant velocity joint is prevented from being caught in the inner surface of the constant velocity joint boot 1. Can be.
[0016]
Note that the present invention is not limited to the above-described embodiment, and can be appropriately modified within the scope of the invention. For example, the shape of the outer casing of the constant velocity joint or the shape of the large end may be changed. Also, the shape of the bellows and the small end can be appropriately changed. Further, in the present embodiment, the boot is formed of a resin. However, for example, the grommet portion on the inner peripheral side of the large end may be formed separately from a resin or rubber having a lower hardness than the resin of the boot body. . Further, the entire boot may be formed integrally with only this low-altitude resin or rubber.
[0017]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the bite of the edge part of the outer casing of a constant velocity joint can be prevented from entering into the inner surface of the constant velocity joint boot.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of one embodiment of a constant velocity joint boot to which the present invention is applied.
FIG. 2 is an enlarged cross-sectional view when an outer casing of the constant velocity joint is inserted into a large end of the constant velocity joint boot of FIG.
FIG. 3 is a view showing a state in which the outer casing of the constant velocity joint is inserted into a large end portion of the constant velocity joint boot of FIG. 1 and the boot is bent.
FIG. 4 is an enlarged sectional view of a portion IV in FIG. 3;
[Explanation of symbols]
Reference Signs List 1 boot for constant velocity joint 3 large end 5 small end 7 bellows 7a convex part 7b concave part 13 outer casing 19 of constant velocity joint end surface 31 annular surface part 34 concave surface part 35 relief part (gap)

Claims (1)

等速ジョイントの外筐が挿入される大端部と、該等速ジョイントに接続された軸部が挿入される小端部と、大端部と小端部との間に形成されたベローズとを有して構成される等速ジョイント用ブーツであって、大端部は、等速ジョイントの外筐の先端部の端面と対向する面部を有してなり、該面部は、前記外筐の先端部の端面内周部に対向する部分を凹ませて形成したことを特徴とする等速ジョイント用ブーツ。A large end into which the outer casing of the constant velocity joint is inserted, a small end into which the shaft connected to the constant velocity joint is inserted, and a bellows formed between the large end and the small end. A constant velocity joint boot comprising: a large end portion having a surface portion facing an end surface of a distal end portion of an outer case of the constant velocity joint, and the surface portion of the outer case is A boot for a constant velocity joint, characterized in that a portion facing the inner peripheral portion of the end face of the distal end portion is formed to be concave.
JP2003161063A 2003-06-05 2003-06-05 Boot for constant velocity universal joint Pending JP2004360817A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003161063A JP2004360817A (en) 2003-06-05 2003-06-05 Boot for constant velocity universal joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003161063A JP2004360817A (en) 2003-06-05 2003-06-05 Boot for constant velocity universal joint

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Publication Number Publication Date
JP2004360817A true JP2004360817A (en) 2004-12-24
JP2004360817A5 JP2004360817A5 (en) 2006-05-25

Family

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Country Link
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006220278A (en) * 2005-02-14 2006-08-24 Ntn Corp Constant velocity universal joint, and boots for constant velocity universal joint
JP2006226453A (en) * 2005-02-18 2006-08-31 Ntn Corp Constant velocity universal joint equipped with boot
JP2006258122A (en) * 2005-03-15 2006-09-28 Ntn Corp Slide type constant velocity universal joint
JP2006266412A (en) * 2005-03-24 2006-10-05 Ntn Corp Constant velocity universal joint and boots for constant velocity universal joint
JP2006275168A (en) * 2005-03-29 2006-10-12 Ntn Corp Drive shaft
JP2006275169A (en) * 2005-03-29 2006-10-12 Ntn Corp Constant velocity universal joint with boots
US8348774B2 (en) 2005-02-14 2013-01-08 Ntn Corporation Constant velocity joint and constant velocity joint boot

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006220278A (en) * 2005-02-14 2006-08-24 Ntn Corp Constant velocity universal joint, and boots for constant velocity universal joint
US8348774B2 (en) 2005-02-14 2013-01-08 Ntn Corporation Constant velocity joint and constant velocity joint boot
JP2006226453A (en) * 2005-02-18 2006-08-31 Ntn Corp Constant velocity universal joint equipped with boot
JP2006258122A (en) * 2005-03-15 2006-09-28 Ntn Corp Slide type constant velocity universal joint
JP2006266412A (en) * 2005-03-24 2006-10-05 Ntn Corp Constant velocity universal joint and boots for constant velocity universal joint
JP4527578B2 (en) * 2005-03-24 2010-08-18 Ｎｔｎ株式会社 Constant velocity universal joint and constant velocity universal joint boot
JP2006275168A (en) * 2005-03-29 2006-10-12 Ntn Corp Drive shaft
JP2006275169A (en) * 2005-03-29 2006-10-12 Ntn Corp Constant velocity universal joint with boots
JP4527581B2 (en) * 2005-03-29 2010-08-18 Ｎｔｎ株式会社 Constant velocity universal joint with boots
JP4652098B2 (en) * 2005-03-29 2011-03-16 Ｎｔｎ株式会社 Drive shaft

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