JPS6246901Y2 - - Google Patents
Info
- Publication number
- JPS6246901Y2 JPS6246901Y2 JP5403883U JP5403883U JPS6246901Y2 JP S6246901 Y2 JPS6246901 Y2 JP S6246901Y2 JP 5403883 U JP5403883 U JP 5403883U JP 5403883 U JP5403883 U JP 5403883U JP S6246901 Y2 JPS6246901 Y2 JP S6246901Y2
- Authority
- JP
- Japan
- Prior art keywords
- ball stud
- mounting portion
- mounting
- view
- wall
- 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
Links
- 238000013459 approach Methods 0.000 claims description 2
- 238000005266 casting Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
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
- F16C11/0614—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part of the joint being open on two sides
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Description
【考案の詳細な説明】
（技術分野）
この考案は、自動車のトルクロツドに使用され
るボールジヨイントの軸を構成するボールスタツ
ドに関する。[Detailed Description of the Invention] (Technical Field) This invention relates to a ball stud that constitutes the shaft of a ball joint used in a torque rod of an automobile.
（背景技術）
第１図は従来のボールジヨイントの構造を例示
し、１はボールスタツドで、中央部を球形部１ａ
とし、両端を、丸棒の両側面に平行する平面部１
ｂを形成した取付部１ｃとし、平面部１ｂに直交
させて取付ボルトを挿通するボルト孔２を穿設し
ている。３は内筒、４は外筒であつて、球形部１
ａと内筒３との間にはメタルの軸受片５、含油綿
織物の軸受片６を介在させ、内筒３の内方に形成
したフランジ３ａと止めリング７とにより側方を
支持されている。止めリング７は内筒３の一部を
打起した突起により内筒から抜け出すのを抑えら
れている。８はグリース、９は周縁部を外筒４の
端部に形成した凹部に係合して外筒に取付けられ
る耐油ゴム等によるダストカバーである。内筒３
と外筒４とはゴム１０を焼付けて緩衝的に結合さ
れる。(Background Art) Fig. 1 illustrates the structure of a conventional ball joint, in which 1 is a ball stud, and the center part is a spherical part 1a.
and both ends are flat parts 1 parallel to both sides of the round bar.
The mounting portion 1c has a shape of 1.b, and a bolt hole 2 through which a mounting bolt is inserted is bored perpendicularly to the flat portion 1b. 3 is an inner cylinder, 4 is an outer cylinder, and a spherical part 1
A metal bearing piece 5 and a bearing piece 6 made of oil-impregnated cotton fabric are interposed between a and the inner cylinder 3, and are laterally supported by a flange 3a formed inside the inner cylinder 3 and a retaining ring 7. . The retaining ring 7 is prevented from slipping out of the inner cylinder by a protrusion that is formed from a part of the inner cylinder 3. Reference numeral 8 denotes grease, and reference numeral 9 denotes a dust cover made of oil-resistant rubber or the like, whose peripheral edge engages with a recess formed at the end of the outer cylinder 4 and is attached to the outer cylinder. Inner cylinder 3
and the outer cylinder 4 are bonded together in a cushioning manner by baking rubber 10.
以上のように構成される従来のボールジヨイン
トにおけるボールスタツドは、鍛造により充実体
として形成されたものであつたため、重量が大き
かつた。 The ball stud in the conventional ball joint constructed as described above was formed as a solid body by forging, and therefore was heavy.
本考案者は、重量軽減のためボールスタツドを
中空にすると共に、ボルト緊締時の取付部１ｃの
変形を防止するため、第２〜５図に示すような取
付部内面を四角形にしたボールジヨイントを考案
した。 The present inventor has created a ball joint in which the inner surface of the mounting part is made square as shown in Figures 2 to 5, in order to make the ball stud hollow to reduce weight and to prevent the mounting part 1c from deforming when tightening the bolt. devised.
この先考案のボールスタツドは、外形は従来の
ボールスタツドと同じであつて、中央部を球形部
１１ａとし、両端部に取付部１１ｃ、１１ｃを形
成し、取付部１１ｃの両側面に平行する平面部１
１ｂ，１１ｂを形成すると共に、ボールスタツド
内を取付部１１ｃの端部に開口する中空にしてい
る。平面部１１ｂ，１１ｂには、これに直交する
ボルト孔１２を穿設する。取付部１１ｃの基部の
内面は回転形として形成するが、ボルト孔１２の
付近の内面は、二つの実施例を示す第４〜５図の
ように取付部１１ｃの中心線およびボルト孔１２
の中心線に平行、即ち平面部１１ｂに直角な平面
の内壁１３としている。このように内壁１３を形
成することにより、ボルト孔１２に挿通したボル
ト（図示せず）にナツトを緊締したときの取付部
１１ｃの耐圧力を増加させるように考慮したもの
である。ところが、この先考案のボールスタツド
には次のような不工合な点があることが判つた。
即ち、このような中空ボールスタツドを造るに
は、鋳型に中子を排渡して鋳造した中空の素材の
外面を切削して仕上げるのであるが、鋳型に中子
を排渡す際に鋳型と中子との間に砂粒がはさまつ
たりして中子がその中心線の囲りに小回動した状
態になると、第６図に誇張して略示するように、
取付部１１ｃの内壁１３がボルト孔１２，１２の
中心線に平行にならなくなり、中空な取付部１１
ｃの肉厚が不同になつてしまう。この状態でボル
トを強く緊締すると取付部が変形し易い。このよ
うな取付部１１ｃの肉厚に不同を生じないために
は、鋳造時の中子の置き方を慎重、確実にしなけ
ればならないので面倒であり、製造能率を悪くす
る。 The previously devised ball stud has the same external shape as the conventional ball stud, with a spherical part 11a in the center, mounting parts 11c and 11c formed at both ends, and flat parts parallel to both sides of the mounting part 11c. 1
1b, 11b, and the inside of the ball stud is hollow to open at the end of the mounting portion 11c. A bolt hole 12 perpendicular to the flat parts 11b is bored in the flat parts 11b, 11b. The inner surface of the base of the mounting portion 11c is formed as a rotating shape, but the inner surface near the bolt hole 12 is aligned with the center line of the mounting portion 11c and the bolt hole 12 as shown in FIGS. 4 and 5 showing two embodiments.
The inner wall 13 has a plane parallel to the center line of the plane, that is, perpendicular to the plane part 11b. By forming the inner wall 13 in this manner, it is considered to increase the withstand pressure of the mounting portion 11c when a nut is tightened on a bolt (not shown) inserted into the bolt hole 12. However, it was discovered that the recently devised ball stud had the following flaws.
In other words, to make such a hollow ball stud, the core is discharged into a mold and the outer surface of the cast hollow material is cut and finished. If a grain of sand is caught between the core and the core and the core is slightly rotated around its center line, as shown schematically in an exaggerated manner in Figure 6,
The inner wall 13 of the mounting portion 11c is no longer parallel to the center line of the bolt holes 12, 12, and the mounting portion 11 is hollow.
The wall thickness of c becomes uneven. If the bolt is strongly tightened in this state, the mounting portion will easily deform. In order to avoid such variations in the thickness of the mounting portion 11c, the core must be placed carefully and reliably during casting, which is troublesome and reduces manufacturing efficiency.
（本考案の目的）
本考案は、上記のような不都合をなくして中子
がその中心線の回りに回動しても取付部の肉厚が
不同にならないようにすると共に、併せて球形部
１１ａの強度を向上させたものである。(Purpose of the present invention) The present invention eliminates the above-mentioned disadvantages and prevents the wall thickness of the mounting part from becoming uneven even when the core rotates around its center line, and also eliminates the problem of the spherical part. 11a with improved strength.
（本考案の構成）
本考案のボールスタツドは、中空な取付部１１
ｃの内面をこれと同軸の円筒面で形成すると共に
中空な球形部１１ａの肉厚を取付部１１ｃに近づ
く程大きくしたものである。(Structure of the present invention) The ball stud of the present invention has a hollow mounting portion 11.
The inner surface of c is formed of a cylindrical surface coaxial with this, and the thickness of the hollow spherical portion 11a increases as it approaches the mounting portion 11c.
（本考案の実施例）
第７〜１０図は本考案の実施例を示し、第７図
は半部を切断した正面図、第８図は半部を切断し
た平面図、第９図は第７図のＢ−Ｂ断面図、第１
０図は第７図のＣ−Ｃ断面図である。(Embodiment of the present invention) Figures 7 to 10 show an embodiment of the present invention, in which Figure 7 is a front view cut in half, Figure 8 is a plan view cut in half, and Figure 9 is a front view cut in half. BB sectional view in Figure 7, 1st
FIG. 0 is a sectional view taken along line CC in FIG.
ボールスタツドの外形は従来のものと同様であ
つて、中央部を球形部１１ａ、両端部を平行する
平面部１１ｂ，１１ｂを持つ取付部１１ｃ，１１
ｃとし、平面部１１ｂに直交させてボルト孔１２
を穿設している。 The outer shape of the ball stud is the same as that of the conventional one, with a spherical part 11a at the center and mounting parts 11c and 11b having parallel flat parts 11b and 11b at both ends.
c, and the bolt hole 12 is perpendicular to the flat part 11b.
is installed.
取付部１１ｃの中空の内壁は、第９〜１０図に
見るように円筒壁１４になつている。 The hollow inner wall of the mounting portion 11c is a cylindrical wall 14 as shown in FIGS. 9 and 10.
円筒壁１４は、厚さが同じならば先考案の平面
の内壁１３よりもボルト緊締時の耐圧力において
劣るけれども、本考案は、この点は肉厚を少し増
すことによつて補ない、素材鋳造時の中子の回動
変位による不都合を避けたものである。 Although the cylindrical wall 14 has the same thickness, it is inferior to the planar inner wall 13 of the previous design in terms of pressure resistance when tightening bolts. However, in the present invention, this point is compensated for by slightly increasing the wall thickness. This avoids the inconvenience caused by rotational displacement of the core during casting.
球形部１１ａの肉厚は、第７〜８図のように取
付部１１ｃに近いａ部程取付部１１ｃから遠いｂ
部より厚くして、この部分に加わる曲げ力および
剪断力に対する強度を大きくした。 The wall thickness of the spherical part 11a is such that the closer the part a is to the attachment part 11c, the farther away the part b is from the attachment part 11c, as shown in FIGS. 7 and 8.
This increases the strength against bending and shearing forces applied to this part.
（本考案の効果）
上記のように構成する本考案のボールスタツド
は、次のような効果を有している。(Effects of the present invention) The ball stud of the present invention configured as described above has the following effects.
(1) 取付部１１ｃの内面を円筒壁１４で形成する
から、素材鋳造時の中子の置き方により中心線
の回りに中子が回動変位しても取付部１１ｃの
肉厚が不同になつてしまうことがない。(1) Since the inner surface of the mounting portion 11c is formed by the cylindrical wall 14, the wall thickness of the mounting portion 11c will vary even if the core is rotated around the center line due to the way the core is placed during casting. I never get used to it.
(2) 従つて取付部の肉厚不同によるボルト緊締時
の強度低下を生じない。(2) Therefore, there is no decrease in strength when tightening the bolt due to uneven wall thickness of the mounting part.
(3) 球形部１１ａの肉厚を取付部１１ｃの側を厚
くしたため、ボールジヨイントに組立て使用す
るときに加わる曲げ力、剪断力に対する強度が
増す。(3) Since the wall thickness of the spherical part 11a is made thicker on the mounting part 11c side, the strength against bending force and shearing force applied when assembled into a ball joint is increased.
第１図はボールジヨイントの構造を例示する一
部切断側面図、第２〜５図は先考案のボールスタ
ツドを示し、第２図は半部切断正面図、第３図は
半部切断平面図、第４図は第１図のＡ−Ａ断面
図、第５図は別例を示す同様断面図、第６図は先
考案のボールスタツドに生じ易い取付部の肉厚不
同を略示する同様断面図、第７〜１０図は本考案
によるボールスタツドを示し、第７図は半部切断
正面図、第８図は半部切断平面図、第９図は第７
図のＢ−Ｂ断面図、第１０図は同じくＣ−Ｃ断面
図である。
１：充実体のボールスタツド、１ａ：球形部、
１ｂ：平面図、１ｃ：取付部、２：ボルト孔、
３：内筒、３ａ：フランジ、４：外筒、５，６：
軸受片、７：止めリング、８：グリース、９：ダ
ストカバー、１０：ゴム、１１：中空のボールス
タツド、１１ａ：球形部、１１ｂ：平面部、１１
ｃ：取付部、１２：ボルト孔、１３：平面の内
壁、１４：円筒壁。
Fig. 1 is a partially cutaway side view illustrating the structure of the ball joint, Figs. 2 to 5 show the previously devised ball stud, Fig. 2 is a half cutaway front view, and Fig. 3 is a half cutaway plane. Figure 4 is a cross-sectional view taken along the line A-A in Figure 1, Figure 5 is a similar cross-sectional view showing another example, and Figure 6 is a schematic illustration of the uneven thickness of the mounting part that tends to occur in the ball stud of the previous design. 7 to 10 show the ball stud according to the present invention, FIG. 7 is a half-cut front view, FIG. 8 is a half-cut plan view, and FIG. 9 is a ball stud according to the present invention.
The BB sectional view in the figure and FIG. 10 are the same CC sectional view. 1: solid ball stud, 1a: spherical part,
1b: Plan view, 1c: Mounting part, 2: Bolt hole,
3: Inner cylinder, 3a: Flange, 4: Outer cylinder, 5, 6:
Bearing piece, 7: Retaining ring, 8: Grease, 9: Dust cover, 10: Rubber, 11: Hollow ball stud, 11a: Spherical part, 11b: Plane part, 11
c: Mounting part, 12: Bolt hole, 13: Planar inner wall, 14: Cylindrical wall.
Claims (1)
１ｃを設け、取付部１１ｃの外側面に、平行する
２個の平面部１１ｂを形成し、この平面部にボル
ト孔１２を穿設したボールスタツドにおいて、ボ
ールスタツド内を両端の取付部１１ｃの端面にお
いて開口する中空とすると共に、取付部１１ｃの
内面を取付部１１ｃの中心線と同軸の円筒面１４
で形成し、球形部１１ａの肉厚を取付部１１ｃに
近づく程大きくしたことを特徴とするボールスタ
ツド。 Rod-shaped attachment parts 1 are provided on both sides of the central spherical part 11a.
1c, two parallel flat parts 11b are formed on the outer surface of the mounting part 11c, and bolt holes 12 are bored in these flat parts. The inner surface of the mounting portion 11c is a cylindrical surface 14 coaxial with the center line of the mounting portion 11c.
A ball stud characterized in that the wall thickness of the spherical part 11a is increased as it approaches the mounting part 11c.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5403883U JPS59160916U (en) | 1983-04-13 | 1983-04-13 | ball stud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5403883U JPS59160916U (en) | 1983-04-13 | 1983-04-13 | ball stud |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59160916U JPS59160916U (en) | 1984-10-27 |
| JPS6246901Y2 true JPS6246901Y2 (en) | 1987-12-22 |
Family
ID=30184388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5403883U Granted JPS59160916U (en) | 1983-04-13 | 1983-04-13 | ball stud |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59160916U (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0632500Y2 (en) * | 1987-03-18 | 1994-08-24 | 埼玉機器株式会社 | Hollow ball stud |
| JP2530614Y2 (en) * | 1990-02-19 | 1997-03-26 | 東海ゴム工業 株式会社 | Sliding bush |
| JPH0743481Y2 (en) * | 1993-03-10 | 1995-10-09 | 丸一ゴム工業株式会社 | Torque rod bush |
-
1983
- 1983-04-13 JP JP5403883U patent/JPS59160916U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59160916U (en) | 1984-10-27 |
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