JPH068337Y2 - Tension type ball joint - Google Patents
Tension type ball jointInfo
- Publication number
- JPH068337Y2 JPH068337Y2 JP1987198104U JP19810487U JPH068337Y2 JP H068337 Y2 JPH068337 Y2 JP H068337Y2 JP 1987198104 U JP1987198104 U JP 1987198104U JP 19810487 U JP19810487 U JP 19810487U JP H068337 Y2 JPH068337 Y2 JP H068337Y2
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- ball
- opening
- side bearing
- ball head
- 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 - Lifetime
Links
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- Pivots And Pivotal Connections (AREA)
Description
【考案の詳細な説明】 産業上の利用分野 本発明は、自動車懸架装置等に使用されるテンションタ
イプのボー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 tension type ball joint used in a vehicle suspension system or the like.
従来の技術 第６図に示す如く、低トルク化を目的として、軸線方向
に隙間３４０を持たせて二分割されたベアリング３１
１，３２０を用いたテンションタイプのボールジョイン
トとしては、例えば実開昭５７−２０３１３６号などが
ある。2. Description of the Related Art As shown in FIG. 6, a bearing 31 divided into two parts with a gap 340 in the axial direction for the purpose of reducing torque.
As a tension type ball joint using 1,320, there is, for example, Japanese Utility Model Laid-Open No. 57-203136.
考案が解決しようとする問題点 ボールジョイントの低作動トルクおよび耐高荷重性能に
関する要求は増々厳しく、特に近年の傾向として、耐高
荷重性能が重視されている。従って従来の低作動トルク
を維持すると共に、耐高荷重性能を有するテンションタ
イプのボールジョイントの開発が望まれている。Problems to be Solved by the Invention The requirements for low operating torque and high load resistance of ball joints are becoming more and more stringent, and particularly in recent years, emphasis is placed on high load resistance. Therefore, there is a demand for the development of a tension type ball joint having a high load resistance while maintaining the conventional low operating torque.
問題点を解決するための手段 閉鎖側ベアリングの軸受部内周面である球座面を内径側
に球頭部球心を中心とする半径の内径側曲面と、該内径
側曲面に連続してボールジョイント組付け状態で球頭部
と間隙を有する外径側曲面とにより構成し、また開口側
ベアリングの円筒状部の反小開口側端部と閉鎖側ベアリ
ングの外周壁部の反大開口側端部とを当接させる。Means for Solving the Problems A ball bearing surface, which is the inner peripheral surface of the bearing portion of the closed side bearing, is located on the inner diameter side, and an inner diameter side curved surface having a radius centered on the ball head spherical center, and a ball continuous to the inner diameter side curved surface. It is composed of a spherical head and a curved surface on the outer diameter side with a gap in the assembled state, and the end of the cylindrical portion of the opening side bearing on the side opposite to the small opening side and the end of the outer peripheral wall of the closing side bearing on the side opposite the large opening side. Part and contact.
作用 (1)ボールスタッドに通常の荷重が加わっている状態に
おいては、ボールスタッド球頭部の表面が、閉鎖側ベア
リングの球座面を構成する複数の曲面のうち内径側曲面
とのみ摺接するためベアリングと球頭部との摺動面積が
小さく、更にボールスタッドの軸線方向の移動を規制
し、ボールスタッドに高荷重が加わると、閉鎖側ベアリ
ングが弾性変形してボールスタッド球頭部の表面が球座
面における外径側曲面とも摺接するためベアリングと球
頭部との摺動面積が拡大する。Action (1) Because the surface of the ball stud ball head makes sliding contact only with the inner diameter side curved surface among the multiple curved surfaces that make up the ball bearing surface of the closed side bearing when the ball stud is under normal load. When the sliding area between the bearing and the ball head is small, and the movement of the ball stud in the axial direction is restricted and a high load is applied to the ball stud, the closed side bearing elastically deforms and the surface of the ball stud ball head is The sliding surface of the bearing and the ball head is enlarged because the sliding contact is also made with the outer diameter side curved surface of the ball seat surface.
(2)また、ソケット内において、開口側ベアリングが閉
鎖側ベアリングにより軸線方向に隙間なく支持されるた
め、ボールスタッドに高荷重が加わった場合にも開口側
ベアリングが塑性変形しないので開口側ベアリングと閉
鎖側ベアリングとの間のあそびの異常増加（所謂ガタの
発生）が防止される。(2) In addition, since the opening side bearing is supported in the socket by the closing side bearing without any gap in the axial direction, even if a high load is applied to the ball stud, the opening side bearing will not be plastically deformed. An abnormal increase in play with the closed side bearing (so-called play) is prevented.
実施例 以下、本考案の実施例のその構成を図面に基づいて説明
する。Embodiment Hereinafter, the configuration of an embodiment of the present invention will be described with reference to the drawings.
第１図は本考案の実施例によるテンションタイプのボー
ルジョイント１を表わしている。図において２は軸部３
と球頭部４とより成るボールスタッド、６は略円筒状ソ
ケット、１０は閉止板、１１はソケット６の小開口７側
に配置された開口側ベアリング、２０は閉止板１０によ
り閉鎖されたソケット６の大開口９側に配置された閉鎖
側ベアリングである。FIG. 1 shows a tension type ball joint 1 according to an embodiment of the present invention. In the figure, 2 is a shaft portion 3
A ball stud composed of a ball head 4 and a ball head 4, 6 a substantially cylindrical socket, 10 a closing plate, 11 an opening side bearing arranged on the small opening 7 side of the socket 6, and 20 a socket closed by the closing plate 10. 6 is a closed side bearing arranged on the side of the large opening 9 of 6.
ボールスタッド２の一端球頭部４は開口側ベアリング１
１及び閉鎖側ベアリング２０を介してソケット６内に揺
動回転自在に軸支されると共に、他端の軸部３はソケッ
ト６の小開口７から突出している。One end of the ball stud 2 has a ball head 4 on the opening side bearing 1
The shaft portion 3 at the other end is projected from the small opening 7 of the socket 6 while being pivotally supported in the socket 6 via the bearing 1 and the closing side bearing 20 so as to swing and rotate.
開口側ベアリング１１は合成樹脂製で、第２図に拡大し
て示す如く、外周がソケット６の円筒部３４の内周壁に
適合する円筒状部１３と、外周がソケット６の開口肩部
８の内周壁に適合する肩部１２とから構成されている。
肩部１２は内径側から外径側へ向かって肉厚を増す楔状
を呈し、最大の肉厚部分で円筒状部１３に連設されてい
る。円筒状部１３は、小径部１６と、この小径部１６に
接続しボールスタッド球頭部４先端に向け截頭円錐状に
拡径するフランジ部１７と、フランジ部１７に接続した
大径部１８とより成る。The opening side bearing 11 is made of synthetic resin, and as shown in an enlarged view in FIG. 2, the outer periphery of the cylindrical portion 13 that fits the inner peripheral wall of the cylindrical portion 34 of the socket 6 and the outer periphery of the opening shoulder portion 8 of the socket 6. And a shoulder portion 12 that fits the inner peripheral wall.
The shoulder portion 12 has a wedge shape whose wall thickness increases from the inner diameter side toward the outer diameter side, and is connected to the cylindrical portion 13 at the maximum wall thickness portion. The cylindrical portion 13 includes a small-diameter portion 16, a flange portion 17 connected to the small-diameter portion 16 and expanding in a truncated cone shape toward the tip of the ball stud ball head 4, and a large-diameter portion 18 connected to the flange portion 17. Consists of
開口側ベアリング１１の内周球面１５は、ボールスタッ
ド球頭部４表面５に摺接している。この内周球面１５
は、ボールスタッド球頭部４の略中心から見て肩部１２
と円筒状部１３との交点方向で球頭部４に最も強く接す
る、球頭部半径（Ｒ１）より半径（Ｒ２）の大きなロイ
ダル曲面に形成されている。すなわち、トロイダル曲面
の仮想中心Ｏ２は、球頭部４の球心Ｏ１よりも、球頭部
４先端側に位置し、かつソケット６の中心軸線から半径
方向に離れた所に位置することになる。そのため、球頭
部４の表面５は、開口側ベアリング１１の開口縁および
赤道部において、間隙３５を生じるかまたは肩部１２よ
りも弱く接触する傾向に成る。The inner spherical surface 15 of the opening side bearing 11 is in sliding contact with the surface 5 of the ball stud ball head 4. This inner spherical surface 15
Is the shoulder 12 when viewed from the approximate center of the ball stud ball head 4.
And a cylindrical portion 13 are most strongly contacted with the ball head 4 in the direction of the intersection, and are formed in a large-diameter curved surface having a radius (R2) larger than the ball head radius (R1). That is, the virtual center O2 of the toroidal curved surface is located closer to the tip end side of the ball head 4 than the ball center O1 of the ball head 4 and is located radially away from the central axis of the socket 6. . Therefore, the surface 5 of the ball head 4 tends to form a gap 35 or contact the surface of the opening-side bearing 11 weaker than the shoulder 12 at the opening edge and the equator.
閉鎖側ベアリング２０はポリウレタン製で、第１図，第
４図左半部，第５図左半部に示す如く、半球カップ状の
軸受部２１と、この軸受部２１の外周を囲むように連設
された略円筒状の外周壁部２２とから構成されている。
この外周壁部２２の外周は、ソケット６の内周壁に適合
している。また、外周壁部２２の反大開口側端部２３の
端面２９は、上述の開口側ベアリング１１の円筒状部１
３の反小開口側端部１４の端面１９に、閉止板１０によ
り圧接されている。従って、開口ベアリング１１がこの
閉鎖側ベアリング２０により軸線方向に隙間なく支持さ
れるため、ボールスタッド２に高荷重が加わった場合に
も開口側ベアリング１１が塑性変形しないので開口側ベ
アリング１１と閉鎖側ベアリング２０との間のあそびの
異常増加（所謂ガタの発生）が防止される。The closed side bearing 20 is made of polyurethane, and as shown in the left half of FIG. 1, FIG. 4 and the left half of FIG. 5, it is connected to the bearing 21 having a hemispherical cup shape and the outer circumference of the bearing 21. The outer peripheral wall portion 22 has a substantially cylindrical shape.
The outer periphery of the outer peripheral wall portion 22 fits the inner peripheral wall of the socket 6. In addition, the end surface 29 of the end portion 23 on the side opposite to the large opening of the outer peripheral wall portion 22 has the cylindrical portion 1 of the opening side bearing 11 described above.
The closing plate 10 presses the end face 19 of the end portion 14 of the non-small opening side 3 of the nozzle 3. Therefore, since the opening bearing 11 is supported by the closing side bearing 20 without any gap in the axial direction, the opening side bearing 11 is not plastically deformed even when a high load is applied to the ball stud 2, so that the opening side bearing 11 and the closing side bearing are closed. An abnormal increase in play with the bearing 20 (so-called play) is prevented.
閉鎖側ベアリング２０の内周面である球座面２５は、球
頭部球心Ｏ１を中心とする半径（Ｒ３）の内径側曲面２
７と球心Ｏ１から軸線上において球頭部先端側に離れた
中心Ｏ３を中心とする同一半径（Ｒ３）の外径側曲面２
６とを接続することにより構成されている。内径側曲面
２７と外径側曲面２６との接続部は段部２８に形成され
ている。従ってボールスタッド２に通常の荷重が加わっ
ている状態においては、ボールスタッド球頭部４の表面
５が閉鎖側ベアリング２０の内径側曲面２７とのみ摺接
しているため、ベアリングと球頭部との摺動面積が小さ
く、ボールジョイント１の低作動トルクを保持すること
ができる。逆に、ボールスタッド２に高荷重が加わった
場合には、閉鎖側ベアリング２０が弾性変形してボール
スタッド球頭部４の表面５が外径側曲面２６とも摺接す
るため、ベアリングと球頭部との摺動面積が拡大し、高
荷重に耐えることができる。The ball bearing surface 25, which is the inner peripheral surface of the closed side bearing 20, has an inner diameter side curved surface 2 having a radius (R3) centered on the ball head spherical center O1.
7 and an outer diameter side curved surface 2 having the same radius (R3) centered on a center O3 which is distant from the ball center O1 toward the tip of the ball head on the axis.
It is configured by connecting 6 and. A connecting portion between the inner diameter side curved surface 27 and the outer diameter side curved surface 26 is formed in a step portion 28. Therefore, when the ball stud 2 is under a normal load, the surface 5 of the ball stud ball head 4 is in sliding contact only with the inner diameter side curved surface 27 of the closed side bearing 20, so that the bearing and the ball head are separated from each other. The sliding area is small and the low operating torque of the ball joint 1 can be maintained. On the contrary, when a high load is applied to the ball stud 2, the closing side bearing 20 is elastically deformed and the surface 5 of the ball stud ball head 4 also comes into sliding contact with the outer diameter side curved surface 26. The sliding area with and expands, and can withstand high loads.
また、閉鎖側ベアリング２０の軸受部２１の開口縁突出
部３１は、開口側ベアリング１１の円筒状部１３の大径
部１８の内径側に位置して、この閉鎖側ベアリング２０
の水平方向の位置ずれを防止している。中心部に設けら
れた貫通孔２４は、エア抜きの働きをする。また、内径
側曲面２７に放射状に形成された溝３２はグリス溜りで
ある。Further, the opening edge protrusion 31 of the bearing portion 21 of the closing side bearing 20 is located on the inner diameter side of the large diameter portion 18 of the cylindrical portion 13 of the opening side bearing 11, and the closing side bearing 20
It prevents the horizontal displacement of the. The through hole 24 provided in the central portion functions to release air. The grooves 32 formed radially on the inner diameter side curved surface 27 are grease reservoirs.
上記第１番目の実施例においては、閉鎖側ベアリングの
軸受部の開口縁突出部を外周壁部よりもソケット小開口
方向に突出させて、外周壁部の端面と開口側ベアリング
の円筒状部端面とを圧接する一方、軸受部の開口縁突出
部は開口側ベアリングの円筒状部の大径部の内径側に位
置させたが、本考案の第２番目の実施例によるテンショ
ンタイプのボールジョイント１０１を表わす第３図，第
４図右半部，第５図右半部に示す如く、閉鎖側ベアリン
グ１２０の軸受部１２１の端面と外周壁部１２２の反大
開口側端部１２３の端面とを同一の端面１２９に揃え、
開口側ベアリング１１１の円筒状部１１３端面１１９と
圧接させても良い。In the first embodiment described above, the opening edge protruding portion of the bearing portion of the closed side bearing is made to project in the socket small opening direction more than the outer peripheral wall portion, and the end surface of the outer peripheral wall portion and the end surface of the cylindrical portion of the opening side bearing are protruded. While the pressure contacting is made with the pressure contacting portion, the protruding portion of the opening edge of the bearing portion is located on the inner diameter side of the large diameter portion of the cylindrical portion of the opening side bearing. The tension type ball joint 101 according to the second embodiment of the present invention 3, the right half of FIG. 4, and the right half of FIG. 5, the end surface of the bearing portion 121 of the closed side bearing 120 and the end surface of the counter-large opening side end portion 123 of the outer peripheral wall portion 122 are Align with the same end face 129,
It may be pressed against the end surface 119 of the cylindrical portion 113 of the opening side bearing 111.
また、閉鎖側ベアリング１２０の球座面１２５の構成と
しては、球頭部球心Ｏ１を中心とする半径Ｒ４の内径側
曲面１２７と、球心Ｏ１よりもボールスタッド軸部側に
位置しかつソケット１０６中心軸線から半径方向に離れ
た中心Ｏ５を中心とする半径Ｏ５の外径側曲面１２６と
を連続させてもよい。Further, the ball bearing surface 125 of the closed side bearing 120 is configured as an inner diameter side curved surface 127 having a radius R4 centered on the ball head ball center O1 and a ball stud shaft portion side of the ball center O1 and the socket. 106 The outer diameter side curved surface 126 having a radius O5 centered on the center O5 radially separated from the central axis may be continuous.
効果 以上のように本考案によれば、 (1)ボールスタッドに通常の荷重が加わっている状態に
おいては、ボールスタッド球頭部の表面が、閉鎖側ベア
リングの球座面を構成する複数の曲面のうち内径側曲面
とのみ摺接するためベアリングと球頭部との摺動面積が
小さく更にボールスタッドの軸線方向の移動を規制し、
ボールスタッドに高荷重が加わると、閉鎖側ベアリング
が弾性変形してボールスタッド球頭部の表面が球座面に
おける外径側曲面とも摺接するためベアリングと球頭部
との摺動面積が拡大し、 (2)また、ソケット内において、開口側ベアリングが閉
鎖側ベアリングにより軸線方向に隙間なく、支持される
ため、ボールスタッドに高荷重が加わった場合にも開口
側ベアリングが塑性変形しないので開口側ベアリングと
閉鎖側ベアリングとの間のあそびの異常増加（所謂ガタ
の発生）が防止されるので、ボールジョイントの低作動
トルクを保持しつつ耐高荷重性能を高めることができ
る。Effects As described above, according to the present invention, (1) under normal load applied to the ball stud, the surface of the ball stud ball head has a plurality of curved surfaces forming the ball bearing surface of the closed side bearing. Of these, only the inner diameter side curved surface is in sliding contact, so the sliding area between the bearing and the ball head is small, and the movement of the ball stud in the axial direction is restricted,
When a high load is applied to the ball stud, the bearing on the closing side elastically deforms and the surface of the ball stud ball head also makes sliding contact with the outer diameter side curved surface of the ball seating surface, increasing the sliding area between the bearing and the ball head. (2) In addition, since the opening side bearing is supported in the socket by the closing side bearing without any gap in the axial direction, the opening side bearing is not plastically deformed even when a high load is applied to the ball stud. Since an abnormal increase in play between the bearing and the closed side bearing (so-called backlash) is prevented, it is possible to improve the high load resistance performance while maintaining a low operating torque of the ball joint.
第１図は本考案の第１番目の実施例によるテンションタ
イプのボールジョイントを表わす断面平面図。第２図は
第１図の一部拡大断面説明図。第３図は本考案の第２番
目の実施例によるテンションタイプのボールジョイント
を表わす断面平面図。第４図の左半部および右半部は各
々第１図および第３図の閉鎖側ベアリングの正面図。第
５図の左半部および右半部は各々第１図および第３図の
閉鎖側ベアリングの平面図。第６図は従来のテンション
タイプのボールジョイントを表わす断面平面図である。 （記号の説明） １……テンションタイプのボールジョイント。 ２……ボールスタッド。４……球頭部。 ６……ソケット。７……小開口。 ９……大開口。１０……閉止板。 １１……開口側ベアリング。１２……肩部。 １３……円筒状部。１４，２３……端部。 ２０……閉鎖側ベアリング。２１……軸受部。 ２２……外集壁部。２５……球座面。 ２６，２７……曲面。FIG. 1 is a sectional plan view showing a tension type ball joint according to a first embodiment of the present invention. FIG. 2 is a partially enlarged sectional explanatory view of FIG. 1. FIG. 3 is a sectional plan view showing a tension type ball joint according to a second embodiment of the present invention. The left half part and the right half part of FIG. 4 are front views of the closed side bearings of FIGS. 1 and 3, respectively. The left and right halves of FIG. 5 are plan views of the closed side bearing of FIGS. 1 and 3, respectively. FIG. 6 is a sectional plan view showing a conventional tension type ball joint. (Explanation of symbols) 1 …… Tension type ball joint. 2 ... Ball stud. 4 ... ball head. 6 ... Socket. 7 ... Small opening. 9: Large opening. 10 ... Stop plate. 11 …… Bearing side bearing. 12 ... Shoulder. 13 ... Cylindrical part. 14, 23 ... Edge. 20 ... Bearing on the closed side. 21 ... Bearing part. 22 ... Outside collection wall. 25: Ball seat surface. 26, 27 ... Curved surface.
Claims (1)
閉止板１０により閉鎖されたソケット６内にボールスタ
ッド２の一端球頭部４を、肩部１２と該肩部１２に連設
され反小開口側端部１４がボールスタッド軸線方向で球
頭部中心より大開口９側に延出された円筒状部１３とよ
り成り開口側ベアリング１１及び半球カップ状の軸受部
２１と該軸受部２１を囲むようにその軸受部２１に連設
された外周壁部２２とより成るラバー製の閉鎖側ベアリ
ング２０を介して揺動自在に支持したテンションタイプ
のボールジョイント１において、前記閉鎖側ベアリング
２０の軸受部２１内周面である球座面２５を内径側に球
頭部球心を中心とする半径の内径側曲面２７と、該内径
側曲面２７に連続してボールジョイント組付け状態で球
頭部４と間隙を有する外径側曲面２６とにより構成し、
また前記開口側ベアリング１１の前記円筒状部１３の反
小開口側端部１４と前記閉鎖側ベアリング２０の外周壁
部２２の反大開口側端部２３とを当接させたことを特徴
とするテンションタイプのボールジョイント。1. A socket 6 having a small opening 7 at one end and a large opening 9 at the other end closed by a closing plate 10, a ball head 4 at one end of a ball stud 2, a shoulder 12 and the shoulder. 12, an end portion 14 on the side opposite to the small opening is provided with a cylindrical portion 13 extending from the center of the ball head toward the large opening 9 in the axial direction of the ball stud, and an opening side bearing 11 and a hemispherical cup-shaped bearing portion. In a tension type ball joint 1, which is swingably supported via a rubber-made closed side bearing 20 composed of an outer peripheral wall portion 22 that is continuously provided to the bearing portion 21 so as to surround the bearing portion 21, A ball seat surface 25, which is the inner peripheral surface of the bearing portion 21 of the closed side bearing 20, has an inner diameter side curved surface 27 having a radius centered on the spherical center of the ball head on the inner diameter side, and a ball joint continuous to the inner diameter side curved surface 27. Has a gap with the ball head 4 in the assembled state Constituted by the radially outer curved surface 26 that,
Further, the anti-small opening side end 14 of the cylindrical portion 13 of the opening side bearing 11 and the non-large opening side end 23 of the outer peripheral wall 22 of the closing side bearing 20 are brought into contact with each other. Tension type ball joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987198104U JPH068337Y2 (en) | 1987-12-25 | 1987-12-25 | Tension type ball joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987198104U JPH068337Y2 (en) | 1987-12-25 | 1987-12-25 | Tension type ball joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01100921U JPH01100921U (en) | 1989-07-06 |
| JPH068337Y2 true JPH068337Y2 (en) | 1994-03-02 |
Family
ID=31488628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987198104U Expired - Lifetime JPH068337Y2 (en) | 1987-12-25 | 1987-12-25 | Tension type ball joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH068337Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016132885A1 (en) * | 2015-02-17 | 2016-08-25 | 日本発條株式会社 | Stabilizer link |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11257340A (en) * | 1998-03-11 | 1999-09-21 | Ichikoh Ind Ltd | Ball joint structure |
| JP2015087000A (en) * | 2013-11-01 | 2015-05-07 | 株式会社ソミック石川 | Ball joint and its bearing sheet |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5744853A (en) * | 1980-08-30 | 1982-03-13 | Furointo Sangyo Kk | Elution tester |
-
1987
- 1987-12-25 JP JP1987198104U patent/JPH068337Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016132885A1 (en) * | 2015-02-17 | 2016-08-25 | 日本発條株式会社 | Stabilizer link |
| US10415633B2 (en) | 2015-02-17 | 2019-09-17 | Nhk Spring Co., Ltd. | Stabilizer link |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01100921U (en) | 1989-07-06 |
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