JP3299297B2 - Sliding universal joint - Google Patents
Sliding universal jointInfo
- Publication number
- JP3299297B2 JP3299297B2 JP09557792A JP9557792A JP3299297B2 JP 3299297 B2 JP3299297 B2 JP 3299297B2 JP 09557792 A JP09557792 A JP 09557792A JP 9557792 A JP9557792 A JP 9557792A JP 3299297 B2 JP3299297 B2 JP 3299297B2
- Authority
- JP
- Japan
- Prior art keywords
- roller
- transmission
- shaft
- sliding
- holder
- 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 - Fee Related
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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/202—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints
- F16D3/205—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part
- F16D3/2055—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part having three pins, i.e. true tripod joints
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
- F16D3/202—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints
- F16D2003/2026—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members one coupling part having radially projecting pins, e.g. tripod joints with trunnion rings, i.e. with tripod joints having rollers supported by a ring on the trunnion
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は，例えば自動車の車輪駆
動軸に屈折部に用いられるスライド式ユニバーサルジョ
イント，特に，内周面に軸方向に延びる複数条の伝動溝
を有して一方の伝動軸に連なる筒状のアウタ部材と，前
記伝動溝に突入するように放射状に延びる複数本のトラ
ニオン軸を有して他方の伝動軸に連なるインナ部材と，
各トラニオン軸の外周に摺動自在に嵌合される内側ロー
ラと，この内側ローラの外周に相対的に首振り自在に嵌
合されるとともに前記伝動溝内で傾きを抑制された状態
で該溝に沿って摺動可能なホルダと，このホルダの外周
に回転自在に嵌合されるとともに前記伝動溝に係合され
る外側ローラと，この外側ローラの両端面にそれぞれ摺
接して該外側ローラのトラニオン軸の軸方向への移動を
規制する一対のローラ保持部材とを備え，前記アウタ部
材とインナ部材間に画成される空間にグリスを充填して
成るタイプのスライド式ユニバーサルジョイントに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding universal joint for use as a bending portion in, for example, a wheel drive shaft of a motor vehicle, and more particularly to an inner peripheral surface having a plurality of axially extending transmission grooves. A cylindrical outer member connected to the shaft, an inner member having a plurality of trunnion shafts extending radially so as to protrude into the transmission groove and connected to the other transmission shaft;
An inner roller slidably fitted to the outer periphery of each trunnion shaft, and a state in which the inner roller is slidably fitted to the outer periphery of the inner roller and tilted in the transmission groove.
A holder slidable along the groove, an outer roller rotatably fitted to the outer periphery of the holder and engaged with the transmission groove, and slidingly contacting both end surfaces of the outer roller. A sliding universal joint of a type including a pair of roller holding members for restricting movement of the outer roller in the axial direction of the trunnion shaft, and filling a space defined between the outer member and the inner member with grease. .
【０００２】[0002]
【従来の技術】かかるスライド式ユニバーサルジョイン
トは，例えば特開昭６３−１９５４２１号公報に開示さ
れているように，既に知られている。2. Description of the Related Art Such a sliding universal joint is already known, for example, as disclosed in Japanese Patent Application Laid-Open No. 63-195421.
【０００３】[0003]
【発明が解決しようとする課題】従来の上記タイプのス
ライド式ユニバーサルジョイントでは，トラニオン軸の
傾動の際に，該軸と外側ローラとの間の相対変位が，該
軸に対する内側ローラの 軸方向摺動と，同ローラのホル
ダに対する首振りとにより無理なく許容され，外側ロー
ラとこれを支持するホルダとは伝動溝内を常に一定の姿
勢で移動して，外側ローラとホルダ間にはスラスト荷重
は働かない構造であるため，外側ローラとローラ保持部
材との間の接触摩擦抵抗が比較的小さくなり，従って該
ローラは伝動溝内を常にスムーズに，問題なく転動し得
るものと考えられていた。 SUMMARY OF THE INVENTION Conventional types of switches of the type described above.
In the ride type universal joint, the trunnion shaft
During tilting, the relative displacement between the shaft and the outer roller
Axial sliding of the inner roller with respect to the shaft
It is reasonably permitted by swinging the
And the holder that supports it are always in a fixed shape in the transmission groove
And the thrust load between the outer roller and the holder
Does not work, so the outer roller and roller holder
The contact friction resistance with the material is relatively small,
The roller can always roll smoothly and smoothly in the transmission groove.
Was thought to be something.
【０００４】ところが，上記従来構造では，外側ローラ
がグリスを充填したアウタ部材の伝動溝を転動する際
に，そのグリスが外側ローラの両端面と一対のローラ保
持部材との摺接面に侵入する。この場合に前記摺接面の
接触面積が大きいと，グリスがその潤滑性と併せ持つ粘
性抵抗によって却って外側ローラのスムーズな回転を阻
害するようになり，これが，前述の如く外側ローラとホ
ルダ間にスラスト荷重が働かないことと相俟って，該ロ
ーラに微振動を発生させる，といった上記タイプのユニ
バーサルジョイントに特有の問題があることが判明し
た。However, in the above-described conventional structure, when the outer roller rolls on the transmission groove of the outer member filled with grease, the grease enters the sliding contact surface between both end surfaces of the outer roller and the pair of roller holding members. I do. When the contact area of the sliding surface in this case is large, the grease is to inhibit rather smooth rotation of the outer roller by the viscous resistance both its lubricity, which the outer roller and e as described above
The thrust load does not work between the
To generate micro vibrations in the
It turns out that there are specific problems with the versal joint
Was .
【０００５】本発明は前述の事情に鑑みてなされたもの
で，グリスの粘性抵抗による外側ローラの回転不良を防
止して上記タイプのスライド式ユニバーサルジョイント
をスムーズに作動させることを目的とする。The present invention has been made in view of the above circumstances, and an object of the present invention is to prevent a rotation failure of an outer roller due to viscous resistance of grease and to smoothly operate a slide type universal joint of the above type .
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に，本発明は，外側ローラとローラ保持部材の相対向す
る摺接面の何れか一方に環状段部を形成して，その段部
に隣接する空隙を，外側ローラとローラ保持部材の相対
向する摺接面間に形成したことを第１の特徴とし，また
本発明は，外側ローラとローラ保持部材の相対向する摺
接面の何れか一方に，トラニオン軸の半径方向にテーパ
するテーパ面を形成して，そのテーパ面と前記摺接面の
何れか他方との間に空隙を形成したことを第２の特徴と
する。 In order to achieve the above object, the present invention provides an annular roller having a step formed on one of opposing sliding surfaces of an outer roller and a roller holding member.
Gap between the outer roller and the roller holding member
That formed between the sliding surfaces which direction the first aspect, or the present invention, in one of the sliding surfaces facing each of the outer roller and the roller holding member, the radial direction of the trunnion axis A tapered surface is formed to be tapered, and the tapered surface and the sliding contact surface are formed.
That the formation of the air gap between the other one <br/> the second feature.
【０００７】[0007]
【実施例】以下，図面により本発明の実施例について説
明する。Embodiments of the present invention will be described below with reference to the drawings.
【０００８】図１〜図４は本発明の第１実施例を示すも
ので，図１はトリポット型等速ユニバーサルジョイント
の縦断面図，図２は図１の２−２線断面図，図３は図２
の３−３線断面図，図４は図２の４部拡大図である。FIGS. 1 to 4 show a first embodiment of the present invention. FIG. 1 is a longitudinal sectional view of a tripod type constant velocity universal joint, FIG. 2 is a sectional view taken along line 2-2 of FIG. Figure 2
2 is a sectional view taken along the line 3-3 of FIG.
【０００９】図１〜図３に示すように，２本の伝動軸
１，２はスライド式ユニバーサルジョイントの一種であ
るトリポット型等速ユニバーサルジョイントＪを介して
連結される。このユニバーサルジョイントＪは，一方の
伝動軸１の端部に一体に連設されて先端面が開放され，
その内部に潤滑用のグリスが封入された筒状のアウタ部
材３と，他方の伝動軸２の端部に固着されてアウタ部材
３内に収容されるインナ部材４とを主要素とする。そし
て，アウタ部材３には，その内周面に軸方向に延びる３
条の伝動溝５‥が等間隔を置いて形成され，さらに各伝
動溝５の両開口縁には互いに向き合う一対の段部６，６
が形成される。As shown in FIGS. 1 to 3, the two transmission shafts 1 and 2 are connected via a tripod type constant velocity universal joint J which is a kind of a slide type universal joint. The universal joint J is integrally connected to the end of one of the transmission shafts 1 and has an open end face.
The main components are a cylindrical outer member 3 in which grease for lubrication is sealed, and an inner member 4 fixed to the end of the other transmission shaft 2 and housed in the outer member 3. The outer member 3 has an inner peripheral surface 3 extending axially.
Transmission grooves 5 # are formed at equal intervals, and a pair of stepped portions 6 and 6 facing each other are formed at both open edges of each transmission groove 5.
Is formed.
【００１０】一方，伝動軸２に固着されたインナ部材４
のボス７の外周面には，上記３条の伝動溝５‥にそれぞ
れ突入する３本のトラニオン軸８‥が一体に突設され
る。On the other hand, the inner member 4 fixed to the transmission shaft 2
On the outer peripheral surface of the boss 7, three trunnion shafts 8 # projecting into the three transmission grooves 5 #, respectively, are integrally provided.
【００１１】各トラニオン軸８の外周には，その軸線上
に中心をもつ球状の内側ローラ９が摺動自在に嵌合さ
れ，この内側ローラ９の外周にホルダ１０が相対的に首
振り自在に嵌合される。更に，このホルダ１０の外周に
はニードルベアリング１１を介して円筒状の外側ローラ
１２が回転自在に嵌合され，この外側ローラ１２が前記
伝動溝５に転動自在に係合される。A spherical inner roller 9 having a center on its axis is slidably fitted on the outer periphery of each trunnion shaft 8, and a holder 10 is relatively oscillated around the inner roller 9. Mated. Further, a cylindrical outer roller 12 is rotatably fitted to the outer periphery of the holder 10 via a needle bearing 11, and the outer roller 12 is rotatably engaged with the transmission groove 5.
【００１２】前記ホルダ１０の伝動溝５での傾きを抑制
するために，ホルダ１０の外端は伝動溝５の底面に摺動
自在に当接され，ホルダ１０の内端には，前記段部６に
摺動自在に当接するフランジ１３が一体に形成される。In order to suppress the inclination of the holder 10 in the transmission groove 5, the outer end of the holder 10 is slidably abutted on the bottom surface of the transmission groove 5, and the inner end of the holder 10 has the stepped portion. A flange 13 slidably abutting on 6 is integrally formed.
【００１３】上記フランジ１３は，少なくとも伝動溝５
の横幅方向に延びる一辺が外側ローラ１２の外径よりも
僅かに小さい方形をなしていて，外側ローラ１２の転動
を阻害しないようになっている。The flange 13 is provided with at least the transmission groove 5.
Has a square shape slightly smaller than the outer diameter of the outer roller 12, so that the rolling of the outer roller 12 is not hindered.
【００１４】また，ホルダ１０には，上記フランジ１３
と協働して外側ローラ１２の軸方向移動を抑制する押え
板１４がサークリップ１５により取付けられる。The holder 10 has the flange 13
A holding plate 14 for suppressing the axial movement of the outer roller 12 in cooperation with the circlip 15 is attached.
【００１５】尚，図１における符号１６は，アウタ部材
３と伝動軸２間に張設されてアウタ部材３の開放端を覆
う可撓ブーツである。Reference numeral 16 in FIG. 1 denotes a flexible boot extending between the outer member 3 and the transmission shaft 2 to cover the open end of the outer member 3.
【００１６】図４から明らかなように，ホルダ１０にニ
ードルベアリング１１を介して回転自在に支持される外
側ローラ１２の上下端面，すなわちホルダ１０のフラン
ジ１３に当接する面と押え板１４に当接する面には，そ
れぞれ環状段部１７，１７が一体に形成される。したが
って，外側ローラ１２は前記段部１７，１７の半径方向
内側部分をフランジ１３と押え板１４に摺接させた状態
で回転する。また前記環状段部１７，１７に隣接する環
状の空隙Ｓ，Ｓが，外側ローラ１２の各端面とフランジ
１３，押え板１４との各間に形成される。 As is apparent from FIG. 4, the upper and lower end surfaces of the outer roller 12, which is rotatably supported by the holder 10 via the needle bearing 11, that is, the surface which comes into contact with the flange 13 of the holder 10 and the holding plate 14 are brought into contact. Annular steps 17, 17 are respectively formed integrally with the surface. Therefore, the outer roller 12 rotates with the radially inner portions of the steps 17, 17 in sliding contact with the flange 13 and the holding plate 14. In addition, a ring adjacent to the annular step portions 17, 17
Gaps S, S are formed between each end face of the outer roller 12 and the flange.
13, and the holding plate 14.
【００１７】次に，前述の構成を備えた第１実施例の作
用を説明する。Next, the operation of the first embodiment having the above configuration will be described.
【００１８】例えば伝動軸１に回転トルクが与えられる
と，そのトルクはアウタ部材３からインナ部材４へ，即
ち伝動溝５の一側面から外側ローラ１２，ホルダ１０及
び内側ローラ９を介してトラニオン軸８及びボス７へ伝
達され，ここから更に伝動軸２へと伝達される。For example, when a rotational torque is applied to the transmission shaft 1, the torque is transmitted from the outer member 3 to the inner member 4, that is, from one side of the transmission groove 5 via the outer roller 12, the holder 10, and the inner roller 9, to the trunnion shaft. 8 and the boss 7, from which it is further transmitted to the transmission shaft 2.
【００１９】この間に，両伝動軸１，２がそれらの軸線
を斜交させるように相互に屈折すれば，内側ローラ９は
トラニオン軸８の傾動を許容しつつトラニオン軸８上を
摺動し，外側ローラ１２は伝動溝５の一側面上を往復転
動する。その際，特にホルダ１０が前述のように段部６
とフランジ１３との当接により伝動溝５での傾きを抑制
されるので，このホルダ５に支承された外側ローラ１２
は傾くことがなく，したがって伝動溝５をスムーズに転
動することができる。また，両伝動軸１，２が軸方向に
相互に変位する場合も，外側ローラ１２は傾くことなく
伝動溝５をスムーズに転動することができる。During this time, if the two transmission shafts 1 and 2 refract each other so as to obliquely intersect their axes, the inner roller 9 slides on the trunnion shaft 8 while allowing the trunnion shaft 8 to tilt. The outer roller 12 reciprocates on one side surface of the transmission groove 5. At this time, in particular, the holder 10 is
The inclination of the transmission groove 5 is suppressed by the contact between the outer roller 12 and the flange 13.
Does not incline, so that the transmission groove 5 can smoothly roll. Also, when the transmission shafts 1 and 2 are displaced from each other in the axial direction, the outer roller 12 can smoothly roll the transmission groove 5 without tilting.
【００２０】さて，前記外側ローラ１２が転動するアウ
タ部材３の内部に封入されたグリスは，外側ローラ１２
の下端面とホルダ１０のフランジ１３間の摺接面間，及
び外側ローラ１２の上端面と押え板１４間の摺接面間に
侵入する。その結果，グリスがその潤滑性と併せ持つ他
の特性である粘性によって，外側ローラ１２の円滑な回
転が阻害されてスライド式ユニバーサルジョイントＪに
微振動が発生する場合がある。しかるに，本実施例にお
いて外側ローラ１２の上下端面に環状段部１７，１７を
形成したことにより，前記粘性抵抗が発生する外側ロー
ラ１２とフランジ１３との接触面積，及び外側ローラ１
２と押え板１４との接触面積が減少し，これにより外側
ローラ１２のスムーズな回転が可能となってスライド式
ユニバーサルジョイントＪの微振動が防止される。The grease sealed inside the outer member 3 on which the outer roller 12 rolls is removed by the outer roller 12.
Of the lower end surface and between sliding surface between the flange 13 of the holder 10, and penetrates between the sliding contact face between the upper face and the pressing plate 14 of the outer roller 12. As a result, smooth rotation of the outer roller 12 may be hindered by viscous viscosity, which is another property of the grease combined with its lubricating property, and microvibration may occur in the slide universal joint J. However, in the present embodiment, by forming the annular steps 17 on the upper and lower end surfaces of the outer roller 12, the contact area between the outer roller 12 and the flange 13 where the viscous resistance occurs, and the outer roller 1
The contact area between the press roller 2 and the presser plate 14 is reduced, so that the outer roller 12 can rotate smoothly and the micro vibration of the slide universal joint J is prevented.
【００２１】図５は本発明の第２実施例を示すものであ
る。FIG. 5 shows a second embodiment of the present invention.
【００２２】この第２実施例は，外側ローラ１２の上下
端面に段部１７，１７を形成する代わりに，この外側ロ
ーラ１２の上下端面に対向するフランジ１３及び押え板
１４に環状段部１８，１８を形成し，この段部１８，１
８の半径方向内側部分を外側ローラ１２の上下端面に摺
接させたものである。In the second embodiment, instead of forming the step portions 17 on the upper and lower end surfaces of the outer roller 12, the flange 13 and the holding plate 14 facing the upper and lower end surfaces of the outer roller 12 have annular step portions 18, 18 and the steps 18, 1
8, the inner portion in the radial direction slides on the upper and lower end surfaces of the outer roller 12.
【００２３】而して，この第２実施例によっても，グリ
スによる粘性抵抗が発生する原因となる外側ローラ１２
とフランジ１３との接触面積，及び外側ローラ１２と押
え板１４との接触面積を減少させることが可能となる。Thus, according to the second embodiment, the outer roller 12 which causes viscous drag due to grease is also generated.
And the contact area between the outer roller 12 and the holding plate 14 can be reduced.
【００２４】図６は本発明の第３実施例を示すものであ
る。FIG. 6 shows a third embodiment of the present invention.
【００２５】この第３実施例は，外側ローラ１２の上下
端面に半径方向外側に向けてテーパ面１９，１９を形成
したもので，外側ローラ１２はフランジ１３及び押え板
１４にニードルベアリング１１を囲繞する環状の領域で
線接触する。また前記各テー パ面１９とフランジ１３，
押え板１４との各間には，環状の空隙Ｓ′がそれぞれ形
成される。 In the third embodiment, tapered surfaces 19, 19 are formed radially outward on the upper and lower end surfaces of the outer roller 12, and the outer roller 12 surrounds the needle bearing 11 on the flange 13 and the holding plate 14. Line contact is made in the annular area. The said respective tape tapered surface 19 flange 13,
An annular space S 'is formed between each of the presser plates 14 and the presser plate 14.
Is done.
【００２６】而して，この第３実施例によれば外側ロー
ラ１２とフランジ１３間，及び外側ローラ１２と押え板
１４間の接触面積を更に減少させることが可能となる。
尚，この第３実施例の変形例として，外側ローラ１２の
上下端面を互いに平行な平面とし，フランジ１３と押え
板１４にテーパ面を形成しても良い。 According to the third embodiment, the contact area between the outer roller 12 and the flange 13 and the contact area between the outer roller 12 and the pressing plate 14 can be further reduced.
As a modification of the third embodiment, the lower end surface and a plane parallel to each other on the outer roller 12, yet good to form a tapered surface on the flange 13 and the pressing plate 14.
【００２７】以上，本発明の実施例を詳述したが，本発
明は前記実施例に限定されるものでなく，種々の小設計
変更を行うことが可能である。Although the embodiment of the present invention has been described in detail above, the present invention is not limited to the above embodiment, and various small design changes can be made.
【００２８】例えば，実施例ではトリポット型等速ユニ
バーサルジョイントを例示したが，本発明はバイポット
型ユニバーサルジョイントに対しても適用することが可
能である。また，第１実施例の段部１７，１７，第２実
施例の段部１８，１８，第３実施例のテーパ面１９，１
９は必ずしも単独で使用する必要はなく，それらを組み
合わせて使用することも可能である。更に，実施例では
外側ローラ１２の外周面が伝動溝５の内面に線接触して
いるが，図４に鎖線で示すように外側ローラ１２の外周
面を円弧状に形成して伝動溝５の内面に点接触させても
良い。For example, in the embodiments, a tri-pot type constant velocity universal joint has been exemplified, but the present invention can also be applied to a bi-pot type universal joint. Also, the steps 17, 17 of the first embodiment, the steps 18, 18 of the second embodiment, and the tapered surfaces 19, 1 of the third embodiment.
It is not necessary to use 9 alone, and it is also possible to use them in combination. Further, in the embodiment, the outer peripheral surface of the outer roller 12 is in line contact with the inner surface of the transmission groove 5, but the outer peripheral surface of the outer roller 12 is formed in an arc shape as shown by a chain line in FIG. Point contact may be made to the inner surface.
【００２９】[0029]
【発明の効果】以上のように本発明の第１の特徴によれ
ば，外側ローラとローラ保持部材の相対向する摺接面の
何れか一方に環状段部を形成して，その段部に隣接する
空隙を，外側ローラとローラ保持部材の相対向する摺接
面間に形成したので，外側ローラとローラ保持部材の接
触面積が小さくなって前記摺接面に侵入したグリスの粘
性抵抗が減少し，これにより，外側ローラがスムーズに
回転できるようになり，グリスの粘性抵抗増に起因した
外側ローラの微振動の発生が防止される。しかも外側ロ
ーラとローラ保持部材の相対向する摺接面の何れか一方
に単に環状段部を形成するだけの簡単な構造であること
から，コスト節減が図られ，またこのような簡単な構造
であっても，トラニオン軸の傾動時に外側ローラとホル
ダ相互間に 働くスラスト荷重は比較的小さいから，その
スラスト荷重のために該段部が早期に摩耗，損傷する虞
れはない。更に上記環状段部の特設に伴い形成される空
隙に，上記摺接面の潤滑に必要なグリスを効果的に保持
することができる。 As described above, according to the first aspect of the present invention, an annular step is formed on one of the opposing sliding surfaces of the outer roller and the roller holding member, and the step is formed on the step. Adjacent
The gap between the outer roller and the roller holding member
Since it is formed between the surfaces, the contact area between the outer roller and the roller holding member is reduced, and the viscous resistance of the grease entering the sliding contact surface is reduced , so that the outer roller can rotate smoothly. Due to increased viscosity resistance of grease
The occurrence of minute vibration of the outer roller is prevented. Besides, outside b
Either one of the sliding contact surfaces of the roller and the roller holding member
A simple structure that simply forms an annular step
Therefore, cost reduction is achieved, and such a simple structure
Even when the trunnion shaft is tilted,
Since the thrust load acting between the dampers is relatively small,
The step may be worn and damaged early due to the thrust load.
There is no. Furthermore, the space formed by the special provision of the annular step portion
Grease necessary for lubrication of the sliding surface is effectively retained in the gap
can do.
【００３０】また本発明の第２の特徴によれば，外側ロ
ーラとローラ保持部材の相対向する摺接面の何れか一方
にトラニオン軸の半径方向にテーパするテーパ面を形成
して，そのテーパ面と前記摺接面の何れか他方との間に
空隙を形成したので，外側ローラとローラ保持部材の接
触面積が小さくなって前記摺接面に侵入したグリスの粘
性抵抗が減少し，これにより，外側ローラがスムーズに
回転できるようになり，グリスの粘性抵抗増に起因した
外側ローラの微振動の発生が防止される。しかも外側ロ
ーラとローラ保持部材の相対向する摺接面の何れか一方
に単にテーパ面を形成するだけの簡単な構造であること
から，コスト節減が図られ，またこのような簡単な構造
であっても，トラニオン軸の傾動時に外側ローラとホル
ダ相互間に働くスラスト荷重は比較的小さいから，その
スラスト荷重のために該テーパ面の接触部が早期に摩
耗，損傷する虞れはない。更に上記テーパ面の特設に伴
い形成される空隙に，上記摺接面の潤滑に必要なグリス
を効果的に保持することができる。 [0030] According to a second aspect of the present invention, by forming a tapered surface which tapers in the radial direction of the one trunnion shaft or sliding contact surface facing each of the outer roller and the roller holding member, the tapered Between the surface and one of the sliding surfaces
Since the formation of the air gap, the viscous resistance of the grease that enters the sliding surface is reduced, the contact area of the outer roller and the roller holding member is reduced, thereby, become the outer roller can rotate smoothly, grease Due to increased viscous drag
The occurrence of minute vibration of the outer roller is prevented. Besides, outside b
Either one of the sliding contact surfaces of the roller and the roller holding member
Simple structure that simply forms a tapered surface
Therefore, cost reduction is achieved, and such a simple structure
Even when the trunnion shaft is tilted,
Since the thrust load acting between the dampers is relatively small,
Due to the thrust load, the contact area of the tapered surface
There is no risk of wear and damage. Furthermore, with the special provision of the tapered surface
Grease necessary for lubrication of the sliding surface
Can be held effectively.
【図１】第１実施例によるスライド式ユニバーサルジョ
イントの縦断面図FIG. 1 is a longitudinal sectional view of a sliding universal joint according to a first embodiment.
【図２】図１の２−２線断面図FIG. 2 is a sectional view taken along line 2-2 of FIG.
【図３】図２の３−３線断面図FIG. 3 is a sectional view taken along line 3-3 in FIG. 2;
【図４】図２の４部拡大図FIG. 4 is an enlarged view of a part of FIG. 2;
【図５】第２実施例に係る，前記図４に対応する拡大図FIG. 5 is an enlarged view corresponding to FIG. 4 according to a second embodiment.
【図６】第３実施例に係る，前記図４に対応する拡大図 FIG. 6 is an enlarged view corresponding to FIG. 4 according to a third embodiment .
１ 伝動軸 ２ 伝動軸 ３ アウタ部材 ４ インナ部材 ５ 伝動溝 ８ トラニオン軸 ９ 内側ローラ １０ ホルダ １２ 外側ローラ １３ フランジ（ローラ保持部材） １４ 押え板（ローラ保持部材） １７ 段部 １８ 段部 １９ テーパ面 Ｓ，Ｓ′ 空隙 REFERENCE SIGNS LIST 1 transmission shaft 2 transmission shaft 3 outer member 4 inner member 5 transmission groove 8 trunnion shaft 9 inner roller 10 holder 12 outer roller 13 flange (roller holding member) 14 holding plate (roller holding member) 17 step 18 step 19 tapered surface S, S ' gap
───────────────────────────────────────────────────── フロントページの続き (72)発明者 清水 正弘 埼玉県和光市中央１丁目４番１号 株式 会社本田技術研究所内 (72)発明者 吉村 泰律 埼玉県和光市中央１丁目４番１号 株式 会社本田技術研究所内 (56)参考文献 特開 昭63−195421（ＪＰ，Ａ) 特開 昭62−52221（ＪＰ，Ａ) 特開 昭52−156252（ＪＰ，Ａ) 特開 平５−280548（ＪＰ，Ａ) 実開 平３−62232（ＪＰ，Ｕ) 実開 昭56−25828（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F16D 3/205 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masahiro Shimizu 1-4-1 Chuo, Wako-shi, Saitama Pref. Honda Research Institute, Ltd. (72) Inventor Yasunori Yoshimura 1-4-1 Chuo, Wako-shi, Saitama In Honda R & D Co., Ltd. (56) References JP-A-63-195421 (JP, A) JP-A-62-52221 (JP, A) JP-A-52-156252 (JP, A) JP-A-5-280548 (JP, A) JP-A 3-62232 (JP, U) JP-A 56-25828 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) F16D 3/205
Claims (2)
（５）を有して一方の伝動軸（１）に連なる筒状のアウ
タ部材（３）と，前記伝動溝（５）に突入するように放
射状に延びる複数本のトラニオン軸（８）を有して他方
の伝動軸（２）に連なるインナ部材（４）と，各トラニ
オン軸（８）の外周に摺動自在に嵌合される内側ローラ
（９）と，この内側ローラ（９）の外周に相対的に首振
り自在に嵌合されるとともに前記伝動溝（５）内で傾き
を抑制された状態で該溝（５）に沿って摺動可能なホル
ダ（１０）と，このホルダ（１０）の外周に回転自在に
嵌合されるとともに前記伝動溝（５）に係合される外側
ローラ（１２）と，この外側ローラ（１２）の両端面に
それぞれ摺接して該外側ローラ（１２）のトラニオン軸
（８）の軸方向への移動を規制する一対のローラ保持部
材（１３，１４）とを備え，前記アウタ部材（３）とイ
ンナ部材（４）間に画成される空間にグリスを充填して
成るスライド式ユニバーサルジョイントにおいて， 外側ローラ（１２）とローラ保持部材（１３，１４）の
相対向する摺接面の何れか一方に環状段部（１７，１
８）を形成して，その段部（１７，１８）に隣接する空
隙（Ｓ）を，外側ローラ（１２）とローラ保持部材（１
３，１４）の相対向する摺接面間に形成したことを特徴
とする，スライド式ユニバーサルジョイント。1. A cylindrical outer member (3) having a plurality of axially extending transmission grooves (5) on its inner peripheral surface and connected to one transmission shaft (1), and said transmission grooves (5). An inner member (4) having a plurality of trunnion shafts (8) extending radially so as to protrude into the inner shaft (2) and connected to the other transmission shaft (2), and slidably fitted on the outer periphery of each trunnion shaft (8). An inner roller (9) to be fitted, and is fitted to the outer periphery of the inner roller (9) so as to be swingable relatively and tilted in the transmission groove (5).
A holder (10) slidable along the groove (5) in a state in which the power transmission groove (5) is rotatably fitted around the holder (10). And a pair of outer rollers (12) engaged with the outer rollers (12), which are in sliding contact with both end faces of the outer rollers (12) to restrict the movement of the outer rollers (12) in the axial direction of the trunnion shaft (8). A sliding universal joint comprising a roller holding member (13, 14) and filling a space defined between the outer member (3) and the inner member (4) with grease; One of the opposed sliding contact surfaces of the roller holding members (13, 14) is provided with an annular step (17, 1).
8) to form an empty space adjacent to the step (17, 18).
The gap (S) is formed between the outer roller (12) and the roller holding member (1).
A sliding universal joint formed between the opposing sliding surfaces according to (3, 14) .
（５）を有して一方の伝動軸（１）に連なる筒状のアウ
タ部材（３）と，前記伝動溝（５）に突入するように放
射状に延びる複数本のトラニオン軸（８）を有して他方
の伝動軸（２）に連なるインナ部材（４）と，各トラニ
オン軸（８）の外周に摺動自在に嵌合される内側ローラ
（９）と，この内側ローラ（９）の外周に相対的に首振
り自在に嵌合されるとともに前記伝動溝（５）内で傾き
を抑制された状態で該溝（５）に沿って摺動可能なホル
ダ（１０）と，このホルダ（１０）の外周に回転自在に
嵌合されるとともに前記伝動溝（５）に係合される外側
ローラ（１２）と，この外側ローラ（１２）の両端面に
それぞれ摺接して該外側ローラ（１２）のトラニオン軸
（８）の軸方向への移動を規制する一対のローラ保持部
材（１３，１４）とを備え，前記アウタ部材（３）とイ
ンナ部材（４）間に画成される空間にグリスを充填して
成る，スライド式ユニバーサルジョイントにおいて， 外側ローラ（１２）とローラ保持部材（１３，１４）の
相対向する摺接面の何れか一方に，トラニオン軸（８）
の半径方向にテーパするテーパ面（１９）を形成して，
そのテーパ面（１９）と前記摺接面の何れか他方との間
に空隙（Ｓ′）を形成したことを特徴とするスライド式
ユニバーサルジョイント。 2. A cylindrical outer member (3) having a plurality of axially extending transmission grooves (5) on its inner peripheral surface and connected to one of the transmission shafts (1), and said transmission groove (5). An inner member (4) having a plurality of trunnion shafts (8) extending radially so as to protrude into the inner shaft (2) and connected to the other transmission shaft (2), and slidably fitted on the outer periphery of each trunnion shaft (8). An inner roller (9) to be fitted, and is fitted to the outer periphery of the inner roller (9) so as to be swingable relatively and tilted in the transmission groove (5).
A holder (10) slidable along the groove (5) in a state in which the power transmission groove (5) is rotatably fitted around the holder (10). And a pair of outer rollers (12) engaged with the outer rollers (12), which are in sliding contact with both end faces of the outer rollers (12) to restrict the movement of the outer rollers (12) in the axial direction of the trunnion shaft (8). A sliding universal joint comprising a roller holding member (13, 14) and filling a space defined between the outer member (3) and the inner member (4) with grease; The trunnion shaft (8) is attached to one of the opposed sliding contact surfaces of the roller holding members (13, 14).
Forming a tapered surface which taper (19) in the radial direction,
Between the tapered surface (19) and one of the sliding contact surfaces
Sliding universal join you want to, characterized in that the formation of the air gap (S ') on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09557792A JP3299297B2 (en) | 1992-04-15 | 1992-04-15 | Sliding universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09557792A JP3299297B2 (en) | 1992-04-15 | 1992-04-15 | Sliding universal joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05296255A JPH05296255A (en) | 1993-11-09 |
| JP3299297B2 true JP3299297B2 (en) | 2002-07-08 |
Family
ID=14141449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09557792A Expired - Fee Related JP3299297B2 (en) | 1992-04-15 | 1992-04-15 | Sliding universal joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3299297B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005050043A1 (en) * | 2003-11-18 | 2005-06-02 | Honda Motor Co., Ltd. | Constant velocity joint and method of manufacturing the same |
-
1992
- 1992-04-15 JP JP09557792A patent/JP3299297B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05296255A (en) | 1993-11-09 |
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