JP4462995B2 - Ball joint - Google Patents

Ball joint Download PDF

Info

Publication number
JP4462995B2
JP4462995B2 JP2004131156A JP2004131156A JP4462995B2 JP 4462995 B2 JP4462995 B2 JP 4462995B2 JP 2004131156 A JP2004131156 A JP 2004131156A JP 2004131156 A JP2004131156 A JP 2004131156A JP 4462995 B2 JP4462995 B2 JP 4462995B2
Authority
JP
Japan
Prior art keywords
bearing
housing
ball
opening
axial direction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2004131156A
Other languages
Japanese (ja)
Other versions
JP2005315287A (en
Inventor
康弘 近藤
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.)
Musashi Seimitsu Industry Co Ltd
Original Assignee
Musashi Seimitsu Industry Co Ltd
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
Application filed by Musashi Seimitsu Industry Co Ltd filed Critical Musashi Seimitsu Industry Co Ltd
Priority to JP2004131156A priority Critical patent/JP4462995B2/en
Priority to DE102005019557A priority patent/DE102005019557A1/en
Publication of JP2005315287A publication Critical patent/JP2005315287A/en
Application granted granted Critical
Publication of JP4462995B2 publication Critical patent/JP4462995B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

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
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0685—Manufacture of ball-joints and parts thereof, e.g. assembly of ball-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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
    • F16C11/0623—Construction or details of the socket member
    • F16C11/0628—Construction or details of the socket member with linings
    • F16C11/0633—Construction or details of the socket member with linings the linings being made of plastics
    • F16C11/0638—Construction or details of the socket member with linings the linings being made of plastics characterised by geometrical details
    • 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
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0666—Sealing means between the socket and the inner member shaft
    • F16C11/0671—Sealing means between the socket and the inner member shaft allowing operative relative movement of joint parts due to flexing of the sealing means
    • 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
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/068—Special features relating to lubrication
    • 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
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • F16C2240/44—Hole or pocket sizes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Pivots And Pivotal Connections (AREA)

Description

本発明は、自動車の懸架装置に使用されるボールジョイントに関する。   The present invention relates to a ball joint used in an automobile suspension system.

従来より、自動車の懸架装置の連結部にはボールジョイント１０１が頻繁に使用されてきた。このようなボールジョイント１０１は、図５に示す如く、球状の球頭部１０４と球頭部１０４から延出する柄部１０３とを有するボールスタッド１０２と、そのボールスタッド１０２の球頭部１０４を揺動回動自在に包持し、一端にベアリング開口部１０７を、他端にベアリング底部１０８を有する合成樹脂製で略カップ状のベアリング１０６と、そのベアリング１０６を内包し、一端にハウジング開口部１１４を、他端にハウジング底部１１５を有し、ハウジング開口部１１４内周側からボールスタッド１０２の柄部１０３を突出させる略カップ状のハウジング１１３と、ハウジング１１３のハウジング開口部１１４内周に配置され、外周に鍔部１２６が形成される環状の抜け止めリング１２５と、ブーツ小開口部１２０がボールスタッド１０２の柄部１０３外周に、ブーツ大開口部１２１が抜け止めリング１２５外周に装着されるゴム状弾性体からなるブーツ１１９とを備えていた。   Conventionally, a ball joint 101 has been frequently used for a connecting portion of a suspension system of an automobile. As shown in FIG. 5, such a ball joint 101 includes a ball stud 102 having a spherical ball head 104 and a handle 103 extending from the ball head 104, and a ball head 104 of the ball stud 102. It is held in a swingable manner, includes a bearing opening 107 at one end and a substantially cup-shaped bearing 106 made of a synthetic resin having a bearing bottom 108 at the other end, and the bearing 106, and a housing opening at one end. 114 is disposed on the inner periphery of the housing opening 114 of the housing 113, and a substantially cup-shaped housing 113 having a housing bottom 115 at the other end and projecting the handle 103 of the ball stud 102 from the inner periphery of the housing opening 114. An annular retaining ring 125 having a flange 126 formed on the outer periphery and a boot small opening 120 are ball studs. The shank 103 periphery 02 was equipped with a boot 119 made of a rubber-like elastic material boot large opening 121 is stopped attached to the ring 125 periphery missing.

ところで前記ベアリング１０６を製造する場合、金型内に合成樹脂を注入して成形する。そのためベアリング１０６はベアリング底部１０８に合成樹脂の注入口であった凸部１１２を有する形状となっている。またベアリング１０６の内周面はボールスタッド１０２の球頭部１０４と略同一形状に形成され、ボールスタッド１０２の球頭部１０４とベアリング１０６との間には潤滑剤が介在する。加えて、ボールスタッド１０２の球頭部１０４における揺動回動時の潤滑性を高めるために、潤滑剤ｗがベアリング１０６から外側へ漏出するのを防止するようにベアリング１０６はベアリング開口部１０７以外は密閉された形状となっている。   By the way, when manufacturing the bearing 106, synthetic resin is injected into a mold and molded. Therefore, the bearing 106 has a shape having a convex portion 112 which is a synthetic resin injection port at the bearing bottom portion 108. The inner peripheral surface of the bearing 106 is formed in substantially the same shape as the ball head 104 of the ball stud 102, and a lubricant is interposed between the ball head 104 of the ball stud 102 and the bearing 106. In addition, in order to improve the lubricity at the time of swinging and turning in the ball head 104 of the ball stud 102, the bearing 106 is other than the bearing opening 107 so as to prevent the lubricant w from leaking out from the bearing 106. Has a sealed shape.

また、ハウジング１１３はハウジング開口部１１４側に受端部１１６を有し、この受端部１１６にはハウジング開口部１１４内周に配置される環状の抜け止めリング１２５の外周に形成した鍔部１２６が着座し、受端部１１６に連続する段状の段部１１７には、ベアリング１０６の外周に形成したフランジ１０９が着座する。ハウジング底部１１５内周面にはベアリング１０６の凸部１１２と軸線方向に対向する位置に溝底部１１８ａを有する溝部１１８が形成されていた。   The housing 113 has a receiving end 116 on the housing opening 114 side. The receiving end 116 has a flange 126 formed on the outer periphery of an annular retaining ring 125 arranged on the inner periphery of the housing opening 114. The flange 109 formed on the outer periphery of the bearing 106 is seated on the stepped stepped portion 117 continuous with the receiving end portion 116. A groove portion 118 having a groove bottom portion 118 a is formed on the inner peripheral surface of the housing bottom portion 115 at a position facing the convex portion 112 of the bearing 106 in the axial direction.

上記ボールジョイント１０１の使用状態において、この軸線方向外側に突出する凸部１１２がハウジング１１３の溝部１１８の溝底部１１８ａと軸線方向に直接当接するとベアリング１０６がハウジング１１３からの反力を受け、ベアリング１０６の内周形状が変形することがある。この変形を防止するため、図６に示す如くベアリング１０６の凸部１１２とハウジング１１３における溝部１１８との間は間隙を有した状態に配置されている。   In the state of use of the ball joint 101, when the convex portion 112 protruding outward in the axial direction directly contacts the groove bottom portion 118a of the groove portion 118 of the housing 113 in the axial direction, the bearing 106 receives a reaction force from the housing 113, and the bearing 106 The inner peripheral shape of 106 may be deformed. In order to prevent this deformation, as shown in FIG. 6, there is a gap between the convex portion 112 of the bearing 106 and the groove portion 118 in the housing 113.

続いて上記ボールジョイント１０１の組付工程を説明する。まず図７に示す如くハウジング１１３内にハウジング開口部１１４側からベアリング１０６を挿入し、ベアリング１０６の凸部１１２をハウジング１１３の溝部１１８内に配置し、フランジ１０９をハウジング１１３の段部１１７に着座させる。ついで予め内周面に潤滑剤が塗布されているベアリング１０６内にベアリング開口部１０７内周からボールスタッド１０２の球頭部１０４を挿入する。   Next, the assembly process of the ball joint 101 will be described. First, as shown in FIG. 7, the bearing 106 is inserted into the housing 113 from the housing opening 114 side, the convex portion 112 of the bearing 106 is disposed in the groove 118 of the housing 113, and the flange 109 is seated on the stepped portion 117 of the housing 113. Let Next, the ball head 104 of the ball stud 102 is inserted from the inner periphery of the bearing opening 107 into the bearing 106 whose lubricant is applied to the inner peripheral surface in advance.

次に図８に示す如く、ハウジング１１３のハウジング開口部１１４内周に抜け止めリング１２５を挿入し、ベアリング１０６のベアリング開口部１０７を抜け止めリング１２５の曲内面に倣って内周側に折曲させるとともに、抜け止めリング１２５の鍔部１２６を受端部１１６に着座させる。   Next, as shown in FIG. 8, the retaining ring 125 is inserted into the inner periphery of the housing opening 114 of the housing 113, and the bearing opening 107 of the bearing 106 is bent to the inner peripheral side along the curved inner surface of the retaining ring 125. At the same time, the flange 126 of the retaining ring 125 is seated on the receiving end 116.

そして最後に、ブーツ１１９のブーツ大開口部１２１が抜け止めリング１２５に、ブーツ小開口部１２０がボールスタッド１０２の柄部１０３外周に圧入されて、図５に示す如きボールジョイント１０１の組付が完了する。
米国特許ＵＳＰ６０９２９５４号公報 Finally, the large boot opening 121 of the boot 119 is press-fitted into the retaining ring 125 and the small boot opening 120 is press-fitted into the outer periphery of the handle 103 of the ball stud 102, so that the ball joint 101 is assembled as shown in FIG. Complete.
US Pat. No. 6,092,954

上記の如き組付工程でボールジョイント１０１を組み付けると、ベアリング１０６のベアリング開口部１０７が抜け止めリング１２５によりかしめられたときにベアリング１０６から球頭部１０４へと荷重がかかる。すると球頭部１０４に押圧されてボールスタッド１０２の球頭部１０４とベアリング底部１０８との間に閉じこめられた潤滑剤ｗがベアリング１０６を押圧変形させ、図６に示す如く亀裂ｋを生じさせる。この亀裂ｋから潤滑剤ｗが漏れて潤滑性が低下しトルクが高くなるということがあった。またベアリング１０６に亀裂ｋがあると、ベアリング１０６が破損し耐久性が低下するということも考えられる。   When the ball joint 101 is assembled in the assembling process as described above, a load is applied from the bearing 106 to the ball head 104 when the bearing opening 107 of the bearing 106 is caulked by the retaining ring 125. Then, the lubricant w pressed by the ball head 104 and confined between the ball head 104 of the ball stud 102 and the bearing bottom 108 causes the bearing 106 to be pressed and deformed to generate a crack k as shown in FIG. In some cases, the lubricant w leaks from the crack k, the lubricity is lowered, and the torque is increased. Further, if there is a crack k in the bearing 106, it is conceivable that the bearing 106 is broken and the durability is lowered.

解決しようとする問題点は、ボールスタッドの球頭部とベアリングとの間に介在する潤滑剤によりベアリングが変形して亀裂が発生し、潤滑剤が漏れて潤滑性が低下し所望のトルクが維持できなくなる点、及び破損して耐久性が低下する可能性がある点である。   The problem to be solved is that the lubricant interposed between the ball head of the ball stud and the bearing causes the bearing to deform and crack, and the lubricant leaks to reduce the lubricity and maintain the desired torque. It is a point that cannot be performed, and there is a possibility that the durability is lowered due to breakage.

本発明は、球状の球頭部と球頭部から延出する柄部とを有するボールスタッドと、ボールスタッドの球頭部を包持し一方にベアリング開口部、他方にベアリング底部を有する略カップ状のベアリングと、ベアリングを内包するハウジングと、ボールスタッドの球頭部とベアリングとの間に介在する潤滑剤とを備える自動車の懸架装置の連結部のボールジョイントにおいて、ベアリングは、底部側外周が球形状に成形され、底部側内周が球形状のハウジングと当接すると共に、ベアリング開口部が内周側に折曲され、ベアリング底部に軸線方向外側へ突出する凸部が、底部内周面に凸部と軸線方向反対側に凹部がそれぞれ形成され、ハウジングはベアリングの凸部と軸線方向に対向する内周面に溝部が形成され、ベアリングの凸部はハウジングの溝部に軸線方向に当接するとともに、ベアリングの凸部とハウジングの溝部との間に径方向に隙間が形成されることを特徴とする。 The present invention relates to a ball stud having a spherical sphere head and a handle extending from the sphere head, and a substantially cup having a bearing opening on one side and a bearing bottom on the other side. In the ball joint of the connecting part of the suspension system of an automobile comprising a cylindrical bearing, a housing enclosing the bearing, and a lubricant interposed between the ball head of the ball stud and the bearing, the bearing has a bottom side outer periphery. Formed in a spherical shape, the bottom side inner circumference abuts the spherical housing, the bearing opening is bent to the inner circumference side, and the convex part protruding outward in the axial direction at the bearing bottom part is on the bottom inner circumferential surface Concave portions are formed on the opposite sides in the axial direction from the convex portions, and the housing is formed with groove portions on the inner peripheral surface facing the convex portions of the bearing in the axial direction. With contact in the axial direction in the groove, characterized in that a gap is formed radially between the grooves of the convex portion of the bearing and the housing.

本発明における自動車の懸架装置の連結部のボールジョイントによれば、ベアリングは、底部側外周が球形状に成形され、底部側内周が球形状のハウジングと当接すると共に、ベアリング開口部が内周側に折曲され、ベアリング底部に軸線方向外側へ突出する凸部が、ベアリング底部内周面に凸部と軸線方向反対側に凹部がそれぞれ形成され、ハウジングはベアリングの凸部と軸線方向に対向する内周面に溝部が形成され、ベアリングの凸部はハウジングの溝部に軸線方向に当接するとともに、ベアリングの凸部とハウジングの溝部との間に径方向に隙間が形成されるので、ボールスタッドの球頭部がベアリング内に圧入されたときにベアリング内の潤滑剤が球頭部に押圧されて、ベアリングをかしめたときにボールスタッドの球頭部とベアリング底部との間に密閉された潤滑剤がベアリングを押圧するが、ベアリングが外周側へ変形することが抑制されて亀裂が発生しないので、ベアリング内から潤滑剤が漏れることはなく、所定のトルクを維持できる。加えて破損することはなく耐久性の低下も抑制される。また抜け止めリングにかしめられてベアリングは内径側へ変形するが、ベアリング底部の凹部に変形するので、ベアリングの変形した部分がボールスタッドの球頭部とは接触しないため、トルクに影響を与えることはない。 According to the ball joint of the connecting portion of the suspension system of the automobile according to the present invention, the bearing is formed into a spherical shape on the bottom side outer periphery, the bottom side inner periphery is in contact with the spherical housing, and the bearing opening is the inner periphery. A convex part that protrudes outward in the axial direction is bent at the bearing bottom, and a concave part is formed on the inner peripheral surface of the bearing bottom, and a concave part is formed on the opposite side in the axial direction. The housing faces the convex part of the bearing in the axial direction Since the groove portion is formed on the inner peripheral surface, the convex portion of the bearing abuts the groove portion of the housing in the axial direction, and a gap is formed in the radial direction between the convex portion of the bearing and the groove portion of the housing. When the ball head of the ball stud is pressed into the bearing, the lubricant in the bearing is pressed against the ball head, and when the bearing is caulked, The lubricant that is sealed between the bottom of the bearing presses the bearing, but the bearing is prevented from deforming to the outer peripheral side and cracks do not occur. Can be maintained. In addition, there is no breakage and a decrease in durability is suppressed. In addition, the bearing is crimped by the retaining ring, and the bearing is deformed to the inner diameter side. However, the bearing is deformed into a recess at the bottom of the bearing. There is no.

ボールジョイントにおいて、ベアリングをかしめたときにボールスタッドの球頭部とベアリングとの間に密閉された潤滑剤がベアリングを押圧して亀裂が入り潤滑剤がベアリングから漏れてトルクが高くなること、及び破損して耐久性が低下することを防止するという目的を、内周形状を変更したベアリングとハウジングとの配置状態を変更することにより容易に実現した。   In ball joints, when the bearing is caulked, the lubricant sealed between the ball head of the ball stud and the bearing presses the bearing, cracks and the lubricant leaks from the bearing, increasing the torque, and The purpose of preventing the durability from lowering due to breakage was easily realized by changing the arrangement of the bearing and the housing whose inner peripheral shape was changed.

図１に示されるのは、本発明の実施例によるボールジョイント１である。このボールジョイント１は、球状の球頭部４と、球頭部４から延出し反球頭部４側端部に雄ねじ５を有する柄部３とからなるボールスタッド２と、内周にボールスタッド２の球頭部４を揺動回動自在に抱持する包持部１０が形成され、一端端部が開口するベアリング開口部７、他端が円弧状に閉じるベアリング底部８を有するベアリング６と、ベアリング６を内包し、一端にベアリング開口部７側端部が開口するハウジング開口部１４を有するハウジング１３とを備える。   Shown in FIG. 1 is a ball joint 1 according to an embodiment of the present invention. The ball joint 1 includes a ball stud 2 including a spherical ball head 4, a handle portion 3 extending from the ball head 4 and having a male screw 5 at an end of the antiball head 4, and a ball stud on the inner periphery. And a bearing 6 having a bearing opening 7 having one end and an opening, and a bearing bottom 8 closing the other end in an arc shape. And a housing 13 including a bearing opening 6 and having a housing opening 14 at one end of the bearing opening 7 side.

ベアリング６は、金型内に合成樹脂を注入して成形されている。そのためベアリング６は注入口であった凸部１２がベアリング底部８中心から下側に突出する形状に形成されている。また包持部１０内周面はボールスタッド２の球頭部４と略同一形状に形成され、ボールスタッド２の球頭部４とベアリング６との間には潤滑剤が介在し、ボールスタッド２の球頭部４における揺動回動時の潤滑性を高めるために、潤滑剤Ｗがベアリングから外へ漏出しないようにベアリング開口部７以外は密閉された形状となっている。またベアリング底部８内周面には包持部１０より薄肉の凹部１１が形成されている。   The bearing 6 is molded by injecting synthetic resin into a mold. Therefore, the bearing 6 is formed in a shape in which the convex portion 12 that is an injection port protrudes downward from the center of the bearing bottom portion 8. Further, the inner peripheral surface of the holding portion 10 is formed in substantially the same shape as the ball head 4 of the ball stud 2, and a lubricant is interposed between the ball head 4 of the ball stud 2 and the bearing 6. In order to improve the lubricity at the time of swinging and turning in the spherical head 4, the shape other than the bearing opening 7 is sealed so that the lubricant W does not leak out from the bearing. Further, a concave portion 11 thinner than the holding portion 10 is formed on the inner peripheral surface of the bearing bottom portion 8.

ハウジング１３は、ハウジング開口部１４を軸心側に折曲して形成されるカシメ部２７、他端端部に閉口するハウジング底部１５を有し、ハウジング底部１５の内周側には凹状で溝底部１８ａを有する溝部１８が形成される。この溝部１８の溝底部１８ａには、図２に示す如くベアリング６の凸部１２が軸線方向に当接している。また図１に示す如く、ハウジング開口部１４側端部に受端部１６を有し、ハウジング開口部１４内周に配置される環状の抜け止めリング２５の外周に形成した鍔部２６が着座する。また受端部１６に連続する段状の段部１７には、ベアリング６の外周に形成したフランジ９が着座する。   The housing 13 includes a caulking portion 27 formed by bending the housing opening 14 toward the axial center side, and a housing bottom portion 15 that is closed at the other end, and a concave groove on the inner peripheral side of the housing bottom portion 15. A groove portion 18 having a bottom portion 18a is formed. As shown in FIG. 2, the convex portion 12 of the bearing 6 is in contact with the groove bottom portion 18a of the groove portion 18 in the axial direction. Further, as shown in FIG. 1, a flange 26 formed on the outer periphery of an annular retaining ring 25 having a receiving end 16 at the end of the housing opening 14 and disposed on the inner periphery of the housing opening 14 is seated. . A flange 9 formed on the outer periphery of the bearing 6 is seated on a stepped stepped portion 17 that is continuous with the receiving end portion 16.

抜け止めリング２５の内周は、所望するベアリング６のベアリング開口部７外周曲率と同一曲率の曲内面を有し、その外周には鍔部２６に連続し軸線方向に延びる立壁部２８が形成される。そしてゴム状弾性体からなるブーツ１９の、補強環２３が内部に埋設されるブーツ大開口部２１が抜け止めリング２５の立壁部２８に固定され、Ｌ字環２２が内部に埋設され断面コの字状のフェルール２４が装着されるブーツ小開口部２０がボールスタッド２の柄部３外周に固定される。 The inner periphery of the retaining ring 25 has a curved inner surface having the same curvature as the outer peripheral curvature of the bearing opening 7 of the desired bearing 6, and a standing wall portion 28 extending in the axial direction is formed on the outer periphery thereof. The The boots 19 made of rubber-like elastic material, the reinforcing ring 23 is fixed to the vertical wall portion 28 of the boot large opening 21 is retaining ring 25 which is embedded in, L-shaped ring 22 is embedded in the cross-section U A small boot opening 20 to which the letter-shaped ferrule 24 is attached is fixed to the outer periphery of the handle 3 of the ball stud 2.

次に上記ボールジョイント１の組付方法について説明する。   Next, a method for assembling the ball joint 1 will be described.

まず図３に示す如く、ハウジング１３のハウジング開口部１４側から、予めベアリング開口部７付近を軸線に沿って平行に形成したベアリング６を挿入し、ベアリング６の凸部１２をハウジング１３の溝部１８の溝底部１８ａに軸線方向に当接させる。またベアリング６のフランジ９をハウジング１３の段部１７に着座させ、ついでベアリング６のベアリング開口部７側からボールスタッド２の球頭部４を挿入する。ベアリング６の内周面には潤滑剤が塗布されており、ボールスタッド２の球頭部４がベアリング６の内周面に挿入されると、球頭部４に押されて潤滑剤がベアリング底部８へと移動する。このときベアリング６内は密閉された状態であるため、ベアリング６内の潤滑剤の大部分がベアリング底部８へ移動する。   First, as shown in FIG. 3, a bearing 6 in which the vicinity of the bearing opening 7 is formed in advance along the axis is inserted from the housing opening 14 side of the housing 13, and the convex portion 12 of the bearing 6 is inserted into the groove portion 18 of the housing 13. Are brought into contact with the groove bottom 18a in the axial direction. Further, the flange 9 of the bearing 6 is seated on the stepped portion 17 of the housing 13, and then the ball head 4 of the ball stud 2 is inserted from the bearing opening 7 side of the bearing 6. Lubricant is applied to the inner peripheral surface of the bearing 6, and when the ball head 4 of the ball stud 2 is inserted into the inner peripheral surface of the bearing 6, the lubricant is pushed by the ball head 4 to cause the lubricant to move to the bottom of the bearing. Move to 8. At this time, since the inside of the bearing 6 is sealed, most of the lubricant in the bearing 6 moves to the bearing bottom 8.

次に図４に示す如く、ハウジング１３のハウジング開口部１４内周側に抜け止めリング２５を挿入し、ベアリング６のベアリング開口部７を抜け止めリング２５の曲内面に倣って内周側に折曲させるとともに、抜け止めリング２５の鍔部２６をハウジング１３の受端部１６に着座させる。このときボールスタッド２の球頭部４とベアリング底部８との間に密閉された潤滑剤Ｗは、ベアリング６をハウジング１３の溝部１８方向へ押圧するが、ベアリング６の凸部１２がハウジング１３の溝部１８の溝底部１８ａと軸線方向に当接しているため、ベアリング６がハウジング１３の溝部１８側へ変形することは抑制される。更にベアリング６は凸部１２がハウジング１３の溝部１８の溝底部１８ａと軸線方向に当接状態にあるのでハウジング１３から反力を受け、ベアリング底部８内周面の凹部１１へと変形する。   Next, as shown in FIG. 4, a retaining ring 25 is inserted on the inner peripheral side of the housing opening 14 of the housing 13, and the bearing opening 7 of the bearing 6 is folded to the inner peripheral side along the curved inner surface of the retaining ring 25. While bending, the flange portion 26 of the retaining ring 25 is seated on the receiving end portion 16 of the housing 13. At this time, the lubricant W sealed between the ball head 4 of the ball stud 2 and the bearing bottom 8 presses the bearing 6 toward the groove 18 of the housing 13. Since the groove bottom 18 abuts against the groove bottom 18 a in the axial direction, the bearing 6 is prevented from being deformed toward the groove 18 of the housing 13. Furthermore, the bearing 6 receives the reaction force from the housing 13 because the convex portion 12 is in contact with the groove bottom portion 18 a of the groove portion 18 of the housing 13 in the axial direction, and is deformed into the concave portion 11 on the inner peripheral surface of the bearing bottom portion 8.

そして最後に、ブーツ１９のブーツ大開口部２１が抜け止めリング２５の立壁部２８に、ブーツ小開口部２０がボールスタッド２の柄部３外周に圧入されて、図１に示す如きボールジョイント１の組付が完了する。   Finally, the large boot portion 21 of the boot 19 is press-fitted into the standing wall portion 28 of the retaining ring 25 and the small boot portion 20 is press-fitted into the outer periphery of the handle portion 3 of the ball stud 2 so that the ball joint 1 as shown in FIG. Is completed.

よって上記実施例によれば、ベアリング６はベアリング底部８に軸線方向外側へ突出する凸部１２が、ベアリング底部８内周面に凸部１２と軸線方向反対側に凹部１１がそれぞれ形成され、ハウジング１３は、ベアリング６の凸部１２と軸線方向に対向する内周面に溝部１８が形成され、ベアリング６の凸部１２はハウジング１３の溝部１８に軸線方向に当接するので、ボールスタッド２の球頭部４がベアリング６内に挿入されたときにベアリング６内の潤滑剤が球頭部４に押圧されてベアリング６内をベアリング底部８方向へ移動し、ベアリング６のベアリング開口部７が抜け止めリング２５によりかしめられたときにベアリング６から球頭部４へと荷重がかかり、球頭部４に押圧されてボールスタッド２の球頭部４とベアリング底部８との間に密閉された潤滑剤Ｗがベアリング６を押圧するが、ベアリング６が外周側へ変形することが抑制される。また、ハウジング１３から反力を受けたベアリング６はベアリング底部８の凹部１１内へ変形する。   Therefore, according to the above embodiment, the bearing 6 is formed with the convex portion 12 protruding outward in the axial direction on the bearing bottom portion 8, and the convex portion 12 on the inner peripheral surface of the bearing bottom portion 8 and the concave portion 11 on the opposite side in the axial direction. 13 has a groove portion 18 formed on the inner peripheral surface facing the convex portion 12 of the bearing 6 in the axial direction, and the convex portion 12 of the bearing 6 abuts the groove portion 18 of the housing 13 in the axial direction. When the head 4 is inserted into the bearing 6, the lubricant in the bearing 6 is pressed by the ball head 4 and moves in the bearing 6 toward the bearing bottom 8, thereby preventing the bearing opening 7 of the bearing 6 from coming off. When it is caulked by the ring 25, a load is applied from the bearing 6 to the ball head 4, and the ball head 4 is pressed against the ball head 4 and the ball bottom 4 and the bearing bottom 8 Although sealed lubricant W presses the bearing 6 while it is prevented that the bearing 6 is deformed to the outer peripheral side. Further, the bearing 6 receiving the reaction force from the housing 13 is deformed into the recess 11 of the bearing bottom 8.

本発明の実施例によるボールジョイントを表す部分断面平面図である。It is a fragmentary sectional top view showing the ball joint by the Example of this invention. 図１の要部拡大図である。It is a principal part enlarged view of FIG. 本発明の実施例によるボールジョイントを組付する第一段階を表す断面正面図である。It is a section front view showing the 1st step of assembling the ball joint by the example of the present invention. 本発明の実施例によるボールジョイントを組付する第二段階を表す断面正面図である。It is a section front view showing the 2nd step of assembling the ball joint by the example of the present invention. 従来のボールジョイントを表す部分断面平面図である。It is a fragmentary sectional top view showing the conventional ball joint. 図５の要部拡大図である。It is a principal part enlarged view of FIG. 従来のボールジョイントを組付する第一段階を表す断面正面図である。It is a sectional front view showing the 1st step of assembling the conventional ball joint. 従来のボールジョイントを組付する第二段階を表す断面正面図である。It is a sectional front view showing the 2nd step of assembling the conventional ball joint.

符号の説明Explanation of symbols

２ ボールスタッド
３ 柄部
４ 球頭部
６ ベアリング
７ ベアリング開口部
８ ベアリング底部
１１ 凹部
１２ 凸部
１３ ハウジング
１８ 溝部
Ｗ 潤滑剤 2 Ball Stud 3 Handle 4 Ball Head 6 Bearing 7 Bearing Opening 8 Bearing Bottom 11 Concave 12 Convex 13 Housing 18 Groove W W Lubricant

Claims (1)

球状の球頭部（４）と該球頭部（４）から延出する柄部（３）とを有するボールスタッド（２）と、該ボールスタッド（２）の球頭部（４）を包持し一方にベアリング開口部（７）を他方にベアリング底部（８）を有する略カップ状のベアリング（６）と、該ベアリング（６）を内包するハウジング（１３）と、前記ボールスタッド（２）の球頭部（４）と前記ベアリング（６）との間に介在する潤滑剤（Ｗ）とを備える自動車の懸架装置の連結部のボールジョイントにおいて、前記ベアリング（６）は、底部側外周が球形状に成形され、底部側内周が球形状の前記ハウジング（１３）と当接すると共に、前記ベアリング開口部（７）が内周側に折曲され、ベアリング底部（８）に軸線方向外側へ突出する凸部（１２）が、ベアリング底部（８）内周面に前記凸部（１２）と軸線方向反対側に凹部（１１）がそれぞれ形成され、前記ハウジング（１３）は、前記ベアリング（６）の凸部（１２）と軸線方向に対向する内周面に溝部（１８）が形成され、前記ベアリング（６）の凸部（１２）は前記ハウジング（１３）の溝部（１８）に軸線方向に当接するとともに、前記ベアリング（６）の凸部（１２）と前記ハウジング（１３）の溝部（１８）との間に径方向に隙間が形成されることを特徴とするボールジョイント。 A ball stud (2) having a spherical ball head (4) and a handle (3) extending from the ball head (4), and enclosing the ball head (4) of the ball stud (2) A generally cup-shaped bearing (6) having a bearing opening (7) on one side and a bearing bottom (8) on the other side, a housing (13) containing the bearing (6), and the ball stud (2) In the ball joint of the connecting portion of the suspension system of the automobile provided with the lubricant (W) interposed between the ball head (4) and the bearing (6), the bearing (6) has a bottom side outer periphery. It is formed in a spherical shape, and the inner periphery on the bottom side comes into contact with the spherical housing (13), and the bearing opening (7) is bent toward the inner peripheral side, and the bearing bottom (8) is axially outward. The protruding convex part (12) is the bearing bottom ( ) A concave portion (11) is formed on the inner circumferential surface of the convex portion (12) on the opposite side in the axial direction, and the housing (13) is opposed to the convex portion (12) of the bearing (6) in the axial direction. A groove portion (18) is formed on the inner peripheral surface, and the convex portion (12) of the bearing (6) abuts the groove portion (18) of the housing (13) in the axial direction, and the convex portion of the bearing (6). A ball joint characterized in that a gap is formed in a radial direction between (12) and the groove (18) of the housing (13).
JP2004131156A 2004-04-27 2004-04-27 Ball joint Expired - Fee Related JP4462995B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2004131156A JP4462995B2 (en) 2004-04-27 2004-04-27 Ball joint
DE102005019557A DE102005019557A1 (en) 2004-04-27 2005-04-27 Ball joint used by suspension system of motor vehicle, includes bearing which comprises convex portion at its bottom and convex portion is abutted with groove of housing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004131156A JP4462995B2 (en) 2004-04-27 2004-04-27 Ball joint

Publications (2)

Publication Number Publication Date
JP2005315287A JP2005315287A (en) 2005-11-10
JP4462995B2 true JP4462995B2 (en) 2010-05-12

Family

ID=35160477

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004131156A Expired - Fee Related JP4462995B2 (en) 2004-04-27 2004-04-27 Ball joint

Country Status (2)

Country Link
JP (1) JP4462995B2 (en)
DE (1) DE102005019557A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005034210B4 (en) * 2005-07-19 2008-04-10 Zf Friedrichshafen Ag Method for producing a ball joint and joint produced thereafter
JP4929074B2 (en) * 2007-06-28 2012-05-09 デルタ工業株式会社 Shift lever device for automobile
DE102011076160B4 (en) 2011-05-20 2023-04-27 Zf Friedrichshafen Ag Bearing shell for a ball joint
DE102018220954B4 (en) * 2018-12-04 2020-06-25 Zf Friedrichshafen Ag Ball joint
US11215221B1 (en) 2020-08-27 2022-01-04 Musashi Auto Parts Canada Inc. Ball joint assembly and method of assembly and ball joint compression ring

Also Published As

Publication number Publication date
JP2005315287A (en) 2005-11-10
DE102005019557A1 (en) 2005-11-17

Similar Documents

Publication Publication Date Title
KR101446446B1 (en) Ball joint and method for producing ball joint
JP4322707B2 (en) Constant velocity joint boots
JPH03213710A (en) Ball joint
CN110291298A (en) Improved socket assembly and method of manufacture
CN111868396B (en) Improved socket assembly and method of manufacture
JP4462995B2 (en) Ball joint
US20050013657A1 (en) Structure for couplingf ball joint and arm
WO2003056194A1 (en) Ball joint
US20180073552A1 (en) Socket Assembly With An Improved Boot
JP4404307B2 (en) Ball joint
JP4434004B2 (en) Constant velocity joint boots
JP3960458B2 (en) Ball joint
JP4257731B2 (en) Ball joint and manufacturing method thereof
JP6752041B2 (en) Ball joint and its bearing seat
JP4812615B2 (en) Ball joint and ball joint manufacturing method
JP4596516B2 (en) Ball joint molding equipment
JPH0625672U (en) Ball valve seal ring
WO2016043226A1 (en) Ball joint, and housing therefor
JP5896206B2 (en) Ball joint
JP2008133855A (en) Cross groove constant velocity joint
JP5473681B2 (en) Ball joint manufacturing method
JP2019052658A (en) Ball joint and bearing seat thereof
JP2004092776A (en) Dust cover for ball joint
JP2004060839A (en) Ball joint
JP2008051251A (en) Rolling bearing

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20070328

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20090417

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090421

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090622

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20091029

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20091226

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20100210

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20100216

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130226

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees