JP2576468Y2 - Ball joint - Google Patents
Ball jointInfo
- Publication number
- JP2576468Y2 JP2576468Y2 JP1993074183U JP7418393U JP2576468Y2 JP 2576468 Y2 JP2576468 Y2 JP 2576468Y2 JP 1993074183 U JP1993074183 U JP 1993074183U JP 7418393 U JP7418393 U JP 7418393U JP 2576468 Y2 JP2576468 Y2 JP 2576468Y2
- Authority
- JP
- Japan
- Prior art keywords
- opening
- housing
- handle
- stud
- sliding member
- 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
Landscapes
- Pivots And Pivotal Connections (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、例えば自動車の懸架装
置及び操舵装置等に使用される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 ball joint used for, for example, a vehicle suspension system and a steering system.
【０００２】[0002]
【従来の技術】従来、図２に示す如く、柄部１０８と球
頭部１０９とからなるスタッド１０２と、その球頭部１
０９を揺動回動自在に包持する摺動部材シート１０３
と、摺動部材シート１０３が嵌合されるハウジング１０
６とを備え、ハウジング１０６の開口部に形成された環
状の凸部１２５がカシメられ摺動部材シート１０３が固
定される。また円筒状のダストブーツ１０４一端大開口
部１１０がハウジング１０６開口部外端に固定され、他
端小開口部がスタッド１０２柄部１０８外周に密接さ
れ、外部からのほこり・土砂等のダストブーツ内への侵
入を防止し、ボールジョイント１０１の耐久性を維持す
る。かかるボールジョイントとしては、特公平５−１０
９４号、実開昭５４−９２２７５号、実開平５−３６２
８号等がある。2. Description of the Related Art Conventionally, as shown in FIG. 2, a stud 102 consisting of a handle 108 and a ball head 109, and a ball head 1
Member 103 for swingably rotating 09
And the housing 10 in which the sliding member sheet 103 is fitted.
6, the annular convex portion 125 formed at the opening of the housing 106 is caulked, and the sliding member sheet 103 is fixed. One end of the cylindrical dust boot 104 has a large opening 110 fixed to the outer end of the opening of the housing 106, and the other end has a small opening closely attached to the outer periphery of the handle 108 of the stud 102. To prevent intrusion into the ball joint 101 and maintain the durability of the ball joint 101. As such a ball joint, Japanese Patent Publication No. 5-10
No. 94, Japanese Utility Model Laid-Open No. 54-92275, Japanese Utility Model Application No. 5-362
No. 8, etc.
【０００３】次に、上記ボールジョイント１０１の製造
方法につい説明する。まず、柄部１０８と球頭部１０９
とからなるスタッド１０２を鍛造加工及び切削加工によ
り成形する。そして、カップ状のハウジング１０６の開
口部を周状に切削加工を加え、環状凸部１２５を形成す
る。次にスタッド１０２の球頭部１０９を摺動部材シー
ト１０３に挿入し、そしてその摺動部材シート１０３を
ハウジング１０６開口部から圧入嵌合し、その後に環状
凸部１２５を径方向内側にカシメてスタッド１０２を包
持する摺動部材シート１０３を固定する。またゴム弾性
体を射出成形・加硫接着を行い略円筒状で一端大開口部
に環状のリング１０５が埋設されたダストブーツ１０４
をつくる。そのダストブーツ１０４大開口部１１０をハ
ウジング１０６の開口部外端に圧入し固定すると共に他
端小開口部１１１をスタッド１０２柄部１０８に密接さ
せて、ボールジョイント１０１を製造していた。Next, a method of manufacturing the ball joint 101 will be described. First, handle 108 and ball head 109
Is formed by forging and cutting. Then, an opening of the cup-shaped housing 106 is circumferentially cut to form an annular convex portion 125. Next, the ball head 109 of the stud 102 is inserted into the sliding member sheet 103, and the sliding member sheet 103 is press-fitted from the opening of the housing 106, and then the annular convex portion 125 is caulked radially inward. A sliding member sheet 103 that holds the stud 102 is fixed. A rubber boot is injection molded and vulcanized to form a dust boot 104 having a substantially cylindrical shape and an annular ring 105 embedded in a large opening at one end.
Create The ball joint 101 is manufactured by press-fitting the large opening 110 of the dust boot 104 into the outer end of the opening of the housing 106 and fixing the small opening 111 of the other end closely to the handle 108 of the stud 102.
【０００４】[0004]
【考案が解決しようとする課題】上述の如きボールジョ
イント１０１において、ハウジング１０６の一定の引き
抜き強度を得るため、環状凸部１２５をカシメて摺動部
材シート１０３を固定していた。そのため環状凸部１２
５を切削加工により成形した後にカシメ加工を行う必要
があった。従って大量生産においてカシメ荷重のバラツ
キによりボールジョイントの摺動トルクがバラツクとい
う課題があった。しかも環状凸部１２５の切削加工やカ
シメ加工が必要であり、加工工程が複雑になり生産性を
低下させるという課題があった。In the above-described ball joint 101, the sliding member sheet 103 is fixed by caulking the annular convex portion 125 in order to obtain a certain pull-out strength of the housing 106. Therefore, the annular protrusion 12
After forming No. 5 by cutting, it was necessary to perform caulking. Therefore, in mass production, there is a problem that the sliding torque of the ball joint varies due to the variation of the caulking load. In addition, there is a problem that cutting and crimping of the annular convex portion 125 are required, which complicates the machining process and lowers productivity.
【０００５】従って、本考案は上述の如き問題を解決
し、安定した摺動トルクのボールジョイントの製造がで
きると共に、加工工程が簡略化できるボールジョイント
を提供することを目的とする。Accordingly, an object of the present invention is to solve the above-mentioned problems and to provide a ball joint capable of manufacturing a ball joint having a stable sliding torque and simplifying a processing step.
【０００６】[0006]
【課題を解決するための手段】本考案のボールジョイン
トは以下の如き構成である。The ball joint of the present invention has the following configuration.
【０００７】柄部と柄部の端部に球頭部を形成するスタ
ッドと、スタッド球頭部を揺動回動自在に包持する円筒
状の摺動部材シートと、摺動部材シートが嵌合される外
形カップ状のハウジングと、円筒状のダストブーツとを
備え、ダストブーツの一端大開口部がハウジング開口部
に固定され、他端小開口部が柄部に密接されたボールジ
ョイントにおいて、ハウジング内径よりも小径の開口を
形成する環状の圧入金具がダストブーツの大開口部に埋
設され、圧入金具が摺動部材シートがハウジングからス
タッドの柄部方向へ抜脱するのを防ぐようにハウジング
開口部外周に固定される。A stud that forms a ball head at the handle and an end of the handle, a cylindrical sliding member sheet that wraps around the ball head of the stud in a swingable manner, and a sliding member sheet are fitted. In the ball joint having an outer cup-shaped housing to be combined, and a cylindrical dust boot, one large opening of the dust boot is fixed to the housing opening, and the other small opening is closely attached to the handle. An annular press fitting forming an opening having a diameter smaller than the inner diameter of the housing is embedded in the large opening of the dust boot, and the press fitting is used to slide the sliding member sheet from the housing.
It is fixed to the peripheral outer housing opening so as to prevent the pulling out the shank direction of Todd.
【０００８】[0008]
【実施例】以下本考案の実施例を図１及に基づいて説明
する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.
【０００９】まず本考案のボールジョイントの構成につ
いて説明をする。First, the configuration of the ball joint of the present invention will be described.
【００１０】図１に示す如く、２は球頭部９と円筒状の
柄部８とからなるスタッドであり、柄部８の端部には螺
旋状の螺子溝２２が形成され、その螺子溝２２に六角ナ
ットを螺合させ大鍔部１２を形成する。３はカップ状合
成樹脂製の摺動部材シートであり、内側が球状に凹設さ
れ、開口外端内周に周状の面取り部２１が形成され、そ
してスタッド２球頭部９を揺動回動自在に包持する。そ
して外形カップ状のハウジング６内側にスタッド２球頭
部９を揺動回動自在に包持する摺動部材シート３が嵌合
される。そしてそのハウジング６外壁からスタッド２軸
方向垂直に六角柱状の鍔部１４を有する円柱状のロッド
１３が延出している。４は略円筒状のダストブーツであ
り、一端大開口部１０はカップ状の摺動部材シート３の
外径よりも小径な開口を有する内周フランジ５ａとスタ
ッド２軸線方向に延びる円筒部５ｂとからなる断面Ｌ字
形の環状の圧入金具５が埋設され、この圧入金具５が摺
動部材シート３がハウジング６からスタッド２の柄部８
方向へ抜脱するのを防ぐようにハウジング６開口部外周
に固定され、他端小開口部１１は環状でスタッド２柄部
８の外周に密接すると共に大鍔部１２の下端に密接す
る。As shown in FIG. 1, reference numeral 2 denotes a stud composed of a ball head 9 and a cylindrical handle 8. At the end of the handle 8, a spiral screw groove 22 is formed. A large flange portion 12 is formed by screwing a hexagonal nut on 22. Reference numeral 3 denotes a sliding member sheet made of a cup-shaped synthetic resin, the inside of which is concavely formed in a spherical shape, a circumferential chamfered portion 21 is formed on the inner periphery of the outer end of the opening, and the stud 2 ball head 9 is swung. Hold it movably. Then, the sliding member sheet 3 which wraps the head 9 of the stud 2 in a swingable manner is fitted inside the housing 6 in the shape of an external cup. A cylindrical rod 13 having a hexagonal column-shaped flange 14 extends vertically from the outer wall of the housing 6 in the axial direction of the stud 2. Reference numeral 4 denotes a substantially cylindrical dust boot. One end of the large opening 10 has an inner peripheral flange 5a having an opening smaller than the outer diameter of the cup-shaped sliding member sheet 3, and a cylindrical portion 5b extending in the axial direction of the stud 2. is embedded pressed fitting 5 of the annular L-shaped cross-section consisting of the press-fit fitting 5 is sliding
The moving member sheet 3 is moved from the housing 6 to the handle 8 of the stud 2.
It is fixed to the outer periphery of the opening of the housing 6 so as to prevent it from being pulled out in the direction, and the other small opening 11 is annular and closely contacts the outer periphery of the stud 2 handle 8 and the lower end of the large flange 12.
【００１１】次に、上記ボールジョイントの製造方法に
ついて説明する。Next, a method of manufacturing the ball joint will be described.
【００１２】まず、鍛造加工及び切削加工によりスタッ
ド２の柄部８と球頭部９とを成形する。柄部８に転造工
程により螺子溝２２を形成し、その螺子溝２２に六角ナ
ットを螺合させ大鍔部１２を形成する。またカップ状の
ハウジング６は内周、外周及び開口端部等に切削加工を
加え形成され、そしてカップ状のハウジング６外壁に円
筒状のロッド１３を溶接する。また摺動部材を樹脂成形
してカップ状の摺動部材シート３を形成する。次にその
摺動部材シート３開口にスタッド２球頭部９を挿入した
後に、摺動部材シート３をハウジング６の開口部から圧
入する。更にまたゴム弾性体に射出成形・加硫接着を行
い略円筒状で、一端大開口部１０に摺動部材シート３の
外径よりも小径な開口を有する断面Ｌ字形の環状の圧入
金具５を埋設されたダストブーツ４をつくる。そのダス
トブーツ４大開口部１０に埋設した圧入金具５をハウジ
ング６の開口端部１５に突き当たるまで圧入し固定する
と共に他端小開口部１１をスタッド２柄部８外周に密接
させ、最後にスタッド２の柄部８螺子溝２２に六角ナッ
トを螺合させ大鍔部１２を形成させると共に大鍔部１２
の下端に他端小開口部１１を密接させる。First, the handle 8 of the stud 2 and the ball head 9 are formed by forging and cutting. A screw groove 22 is formed in the handle 8 by a rolling process, and a hexagon nut is screwed into the screw groove 22 to form the large flange portion 12. The cup-shaped housing 6 is formed by cutting the inner circumference, the outer circumference, the opening end, and the like, and the cylindrical rod 13 is welded to the outer wall of the cup-shaped housing 6. The sliding member is formed by resin molding to form a cup-shaped sliding member sheet 3. Next, after inserting the ball head 9 of the stud 2 into the opening of the sliding member sheet 3, the sliding member sheet 3 is press-fitted from the opening of the housing 6. Further, an annular press-fitting metal fitting 5 having an L-shaped cross section, which is formed into a substantially cylindrical shape by performing injection molding and vulcanization bonding on the rubber elastic body and having an opening having a smaller diameter than the outer diameter of the sliding member sheet 3 at one large opening 10. Create a buried dust boot 4. The press fitting 5 buried in the large opening 10 of the dust boot 4 is press-fitted and fixed until it hits the opening end 15 of the housing 6, and the small opening 11 at the other end is brought into close contact with the outer periphery of the stud 2 handle 8. large rib portion 12 a hexagonal nut 2 of the shank 8 threaded grooves 22 with the formation of large rib portion 12 is screwed
The small opening 11 on the other end is brought into close contact with the lower end of.
【００１３】従って、ハウジング６内径よりも小径の開
口を形成された環状の圧入金具５が前記ダストブーツ４
大開口部１０に埋設され、圧入金具５がハウジング６開
口部に固定されるので、従来例の如く環状凸部を切削加
工で形成する必要がなく、カシメ加工も不要となる。ま
たスタッド２を引き抜く力が働いた場合には、摺動部材
シート３の外径よりダストブーツ４の大開口部１０内径
が小径であるため、摺動部材シート３の上端がハウジン
グ６開口部外周に嵌合された環状の圧入金具５の内周フ
ランジ５ａ下端１６で固定されていることからスタッド
２を包持する摺動部材シート３がハウジング６からスタ
ッド２の柄部８方向へ抜けることがない。Therefore, the annular press fitting 5 having an opening smaller in diameter than the inner diameter of the housing 6 is provided in the dust boot 4.
Since the press fitting 5 is embedded in the large opening 10 and the press fitting 5 is fixed to the opening of the housing 6, it is not necessary to form the annular convex portion by cutting as in the conventional example, and it is not necessary to perform caulking. Further, when a force for pulling out the stud 2 is applied, the inner diameter of the large opening 10 of the dust boot 4 is smaller than the outer diameter of the sliding member sheet 3. Inner circumference of annular press-fitting fitting 5 fitted to
Star stud 2 from sliding member seat 3 housing 6 embracing because it is fixed by the flange 5a lower end 16
It does not come off in the direction of the handle 8 of the pad 2 .
【００１４】しかもハウジング６開口端部１５に環状の
圧入金具５の内周フランジ５ａ下端１６を突き合わせる
ので、摺動部材シート３がスタッド２軸方向に圧縮され
る寸法が容易に得られる。ところで、ボールジョイント
１の摺動トルクは、摺動部材シート３がスタッド２軸方
向に圧縮される寸法に大きく左右される。本考案ではハ
ウジンヴ６開口端部に環状の圧入金具５の内周フランジ
５ａ下端１６を突き合わせるのでその圧縮寸法はハウジ
ング６軸方向の開口端面と底との長さによってほぼ決定
されるが、切削加工等により高い寸法精度の容易に得ら
れる部分であるので従来例の如く量産においてカシメ荷
重のばらつきによる摺動トルクのバラツキは発生しな
い。In addition, since the lower end 16 of the inner peripheral flange 5a of the annular press fitting 5 is abutted against the opening end 15 of the housing 6, the size in which the sliding member sheet 3 is compressed in the axial direction of the stud can be easily obtained. Incidentally, the sliding torque of the ball joint 1 largely depends on the size of the sliding member sheet 3 compressed in the axial direction of the stud. In the present invention, the inner peripheral flange of the annular press fitting 5 is provided at the opening end of the housing 6.
Since the lower end 16 of the 5a is abutted, its compression dimension is substantially determined by the length of the opening end face and the bottom in the axial direction of the housing 6. However, since it is a part that can be easily obtained with high dimensional accuracy by cutting or the like, it is a conventional example. As described above, in mass production, there is no variation in sliding torque due to a variation in caulking load.
【００１５】[0015]
【考案の効果】以上のように本考案によれば、円筒状の
ダストブーツ大開口部にハウジング内径よりも小径の開
口を形成された環状の圧入金具がダストブーツの大開口
部に埋設され、圧入金具がハウジング開口部に固定され
たため、ボールジョイントの引っ張り方向の荷重に対
し、摺動部材シートがハウジングからスタッドの柄部方
向へ抜け出ることを圧入金具が防ぐのでハヴジング開口
部をカシメ加工する必要がなく、大量生産における摺動
トルクが安定したボールジョイントの生産が可能となる
と共に加工工程が削減され、生産性の向上を得ることが
できる。As described above, according to the present invention, an annular press fitting having a cylindrical dust boot large opening with an opening smaller in diameter than the housing inner diameter is buried in the dust boot large opening, Since the press fitting is fixed to the housing opening, it can withstand the load in the pulling direction of the ball joint.
The sliding member sheet moves from the housing to the stud handle.
The housing is open because the press-in fitting prevents it from coming out
Since it is not necessary to caulk the part, it is possible to produce a ball joint with stable sliding torque in mass production , and the number of machining steps is reduced, so that productivity can be improved.
【図１】本考案のボールジョイントを表す縦断面平面図
である。FIG. 1 is a vertical sectional plan view showing a ball joint of the present invention.
【図２】従来のボールジョイントを表す縦断面平面図で
ある。FIG. 2 is a vertical sectional plan view showing a conventional ball joint.
２ スタッド ３ 摺動部材シート ４ ダストブーツ ６ ハウジング ８ 柄部 ９ 球頭部 １０ 大開口部 １１ 小開口部 2 stud 3 sliding member sheet 4 dust boot 6 housing 8 handle 9 ball head 10 large opening 11 small opening
Claims (1)
頭部（９）を形成するスタッド（２）と、当該スタッド
（２）球頭部（９）を揺動回動自在に包持する円筒状の
摺動部材シート（３）と、当該摺動部材シート（３）が
嵌合される外形カップ状のハウジング（６）と、円筒状
のダストブーツ（４）とを備え、当該ダストブーツ
（４）の一端大開口部（１０）が前記ハウジング（６）
開口部に固定され、他端小開口部（１１）が柄部（８）
に密接されたボールジョイントにおいて、前記ハウジン
グ（６）内径よりも小径の開口を形成する環状の圧入金
具（５）が前記ダストブーツ（４）の大開口部（１０）
に埋設され、当該圧入金具（５）が前記摺動部材シート
（３）が前記ハウジング（６）から前記スタッド（２）
の前記柄部（８）方向へ抜脱するのを防ぐように前記ハ
ウジング開口部外周に固定されることを特徴とするボー
ルジョイント。 1. A handle (8), a stud (2) forming a ball head (9) at an end of the handle (8), and the stud (2) swinging the ball head (9). A cylindrical sliding member sheet (3) rotatably held, an outer cup-shaped housing (6) into which the sliding member sheet (3) is fitted, and a cylindrical dust boot (4). And a large opening (10) at one end of the dust boot (4) is provided in the housing (6).
The other end small opening (11) is fixed to the opening, and the handle (8)
An annular press fitting (5) forming an opening having a diameter smaller than the inner diameter of the housing (6) in the ball joint closely attached to the dust boot (4) has a large opening (10).
The press fitting (5) is embedded in the sliding member sheet.
(3) from the housing (6) to the stud (2)
A ball joint fixed to the outer periphery of the housing opening so as to prevent the handle from being pulled out in the direction of the handle (8) .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993074183U JP2576468Y2 (en) | 1993-12-27 | 1993-12-27 | Ball joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993074183U JP2576468Y2 (en) | 1993-12-27 | 1993-12-27 | Ball joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0738745U JPH0738745U (en) | 1995-07-14 |
| JP2576468Y2 true JP2576468Y2 (en) | 1998-07-09 |
Family
ID=13539809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1993074183U Expired - Lifetime JP2576468Y2 (en) | 1993-12-27 | 1993-12-27 | Ball joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2576468Y2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0182321U (en) * | 1987-11-24 | 1989-06-01 | ||
| JP2534300Y2 (en) * | 1991-09-10 | 1997-04-30 | 株式会社リズム | Ball joint bearing locking device |
-
1993
- 1993-12-27 JP JP1993074183U patent/JP2576468Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0738745U (en) | 1995-07-14 |
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