JP2019124353A - Ball joint - Google Patents

Ball joint Download PDF

Info

Publication number
JP2019124353A
JP2019124353A JP2019003532A JP2019003532A JP2019124353A JP 2019124353 A JP2019124353 A JP 2019124353A JP 2019003532 A JP2019003532 A JP 2019003532A JP 2019003532 A JP2019003532 A JP 2019003532A JP 2019124353 A JP2019124353 A JP 2019124353A
Authority
JP
Japan
Prior art keywords
ball
shaft
stud
shaft portion
ball joint
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.)
Pending
Application number
JP2019003532A
Other languages
Japanese (ja)
Inventor
市川 久
Hisashi Ichikawa
久 市川
彰吾 白柳
Shogo Shirayanagi
彰吾 白柳
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.)
Somic Ishikawa KK
Original Assignee
Somic Ishikawa KK
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 Somic Ishikawa KK filed Critical Somic Ishikawa KK
Priority to JP2019003532A priority Critical patent/JP2019124353A/en
Publication of JP2019124353A publication Critical patent/JP2019124353A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Pivots And Pivotal Connections (AREA)

Abstract

To provide a ball joint enabling weight saving.SOLUTION: A ball joint 1 comprises a ball stud 2 having a spherical ball part and a shaft-like stud part 6. The ball joint 1 comprises a housing 3 covering the ball part of the ball stud 2. The ball stud part 6 has a shaft part 13, a thin shaft part 12 thinner than the shaft part 13, and a buckling part 14 thinner than the thin shaft part 12. The thin shaft part 12 is positioned on the ball part side with respect to the shaft part 13, and the buckling part 14 is positioned on the anti-ball part side with respect to the shaft part 13.SELECTED DRAWING: Figure 1

Description

本発明は、軽量化を図ることができるボールジョイントに関するものである。   The present invention relates to a ball joint capable of achieving weight reduction.

従来、例えば下記の特許文献1に記載されたボールジョイントが知られている。   Conventionally, for example, a ball joint described in Patent Document 1 below is known.

この従来のボールジョイントは、例えば自動車のステアリング機構を構成する舵取り装置に用いられるもので、金属製のハウジングと、このハウジングに組み付けられた金属製のボールスタッドと備えている。   This conventional ball joint is used, for example, in a steering apparatus constituting a steering mechanism of an automobile, and includes a metal housing and a metal ball stud assembled to the housing.

また、ボールスタッドは、一端に球頭部を有し、この球頭部から軸部が一体に連設され、この軸部の先端に雄ねじのねじ部が設けられている。そして、球頭部がハウジングの内室内に配設されているとともに、軸部がハウジングの一端の開口部から延出されている。   Further, the ball stud has a ball head at one end, a shaft is integrally connected from this ball head, and a thread of a male screw is provided at the tip of the shaft. The ball head is disposed in the inner chamber of the housing, and the shaft extends from the opening at one end of the housing.

さらに、軸部の中間部の外周面には、軸方向に波形状の座屈部が転造形成されている。そして、この座屈部は、軸部の周方向に沿って凹溝状に形成された減縮部と、この減縮部に連続して隣設され軸部の周方向に沿った壁状の隆起部とが軸方向に複数連続して設けられて波形状に形成されている。なお、この座屈部は、減縮部の位置での最小径寸法が座屈部の両側の部分である座屈部が設けられていない位置での軸部の最小径寸法より小さく、隆起部の位置での最大径寸法が座屈部の両側の部分である座屈部が設けられていない位置での軸部の最大径寸法より大きくなるように形成されている。   Furthermore, a wave-like buckling portion is formed by rolling in the axial direction on the outer peripheral surface of the middle portion of the shaft portion. And this buckling part is a reduction part formed in the shape of a ditch along the circumferential direction of the shaft part, and a wall-like protuberance part along the circumferential direction of the shaft part provided adjacent to the reduction part continuously. And a plurality of corrugations are continuously formed in the axial direction and formed in a wave shape. In addition, this buckling part is smaller than the minimum diameter size of the shaft part in the position where the buckling part which is a part on both sides of the buckling part is not provided, and the minimum diameter size at the position of the reduction part The maximum diameter dimension at the position is formed to be larger than the maximum diameter dimension of the shaft portion at the position where the buckling portion is not provided, which is the portion on both sides of the buckling portion.

特開平11−351233号公報Unexamined-Japanese-Patent No. 11-351233

そして、本発明は、軽量化を図ることができるボールジョイントを提供することを目的とする。   And this invention aims at providing the ball joint which can aim at weight reduction.

請求項1記載のボールジョイントは、球状のボール部及び軸状のスタッド部を有するボールスタッドと、このボールスタッドの前記ボール部を覆うハウジングとを備え、前記ボールスタッドの前記スタッド部は、軸部と、この軸部よりも細い細軸部と、この細軸部よりも細い座屈部とを有するものである。   The ball joint according to claim 1 comprises a ball stud having a spherical ball portion and an axial stud portion, and a housing covering the ball portion of the ball stud, wherein the stud portion of the ball stud is a shaft portion. And a thin shaft portion thinner than the shaft portion and a buckling portion thinner than the thin shaft portion.

請求項2記載のボールジョイントは、請求項1記載のボールジョイントにおいて、細軸部は、軸部よりもボール部側に位置し、座屈部は、前記軸部よりも反ボール部側に位置するものである。   In the ball joint according to claim 2, in the ball joint according to claim 1, the thin shaft portion is positioned closer to the ball portion than the shaft portion, and the buckling portion is positioned opposite to the ball portion than the shaft portion. It is

請求項3記載のボールジョイントは、請求項2記載のボールジョイントにおいて、細軸部は、細長い等径状の丸軸部分と、この丸軸部分の反ボール部側の端部に連設され、反ボール部側に向かって徐々に拡径する截頭円錐状の円錐状部分とを有し、前記円錐状部分の外周面は、軸部の外周面に繋がっているものである。   According to a third aspect of the present invention, in the ball joint according to the second aspect, the thin shaft portion is connected to an elongated equal diameter round shaft portion and an end portion of the round shaft portion opposite to the ball portion. And a frusto-conical conical portion gradually expanding in diameter toward the non-ball portion side, and the outer peripheral surface of the conical portion is connected to the outer peripheral surface of the shaft portion.

請求項4記載のボールジョイントは、請求項1ないし3のいずれか一記載のボールジョイントにおいて、細軸部の軸方向長さ寸法は、軸部の軸方向長さ寸法よりも長いものである。   A ball joint according to a fourth aspect of the present invention is the ball joint according to any one of the first to third aspects, wherein the axial length dimension of the thin shaft portion is longer than the axial length dimension of the shaft portion.

本発明によれば、軽量化を図ることができる。   According to the present invention, weight reduction can be achieved.

本発明の一実施の形態に係るボールジョイントの正面図である。It is a front view of the ball joint concerning one embodiment of the present invention. 同上ボールジョイントの背面図である。It is a rear view of a ball joint same as the above. 同上ボールジョイントの左側面図である。It is a left view of a ball joint same as the above. 同上ボールジョイントの右側面図である。It is a right side view of a ball joint same as the above. 同上ボールジョイントの平面図である。It is a top view of a ball joint same as the above. 同上ボールジョイントの底面図である。It is a bottom view of a ball joint same as the above. 同上ボールジョイントの斜視図である。It is a perspective view of a ball joint same as the above. 図1におけるA−A部分拡大図である。It is the AA partial enlarged view in FIG.

本発明の一実施の形態について図1ないし8を参照して説明する。   One embodiment of the present invention will be described with reference to FIGS.

図中の1はボールジョイントで、このボールジョイント1は、自動車等の車両におけるステアリング機構に用いられるものである。そして、ボールジョイント1は、ボールスタッド2と、ハウジング3とを備えている。   Reference numeral 1 in the figure denotes a ball joint, and the ball joint 1 is used for a steering mechanism in a vehicle such as a car. The ball joint 1 includes a ball stud 2 and a housing 3.

ボールスタッド2は、細長い軸状のスタッド部6と、このスタッド部6の長手方向端部(図1では、左端部)に設けられた球状のボール部7とを有している。   The ball stud 2 has an elongated shaft-like stud portion 6 and a spherical ball portion 7 provided at the longitudinal end (the left end in FIG. 1) of the stud portion 6.

スタッド部6は、ボール部7側の一端側軸部11と、細軸部12と、軸部13と、座屈部14と、ボール部7側とは反対側(反ボール部7側)の他端側軸部15とを有している。軸部13の外周面には、凹溝16が形成されている。他端側軸部15の外周面には、ねじ溝17が形成されている。   The stud portion 6 has the one end side shaft portion 11 on the ball portion 7 side, the thin shaft portion 12, the shaft portion 13, the buckling portion 14 and the opposite side (anti-ball portion 7 side) to the ball portion 7 side. And the other end side shaft portion 15. A recessed groove 16 is formed on the outer peripheral surface of the shaft portion 13. A screw groove 17 is formed on the outer peripheral surface of the other end side shaft portion 15.

そして、図1及び図7等から明らかなように、細軸部12は、軸部13よりもボール部7側に位置し、かつ、座屈部14は、軸部13よりも反ボール部7側に位置している。   And, as is clear from FIGS. 1 and 7 etc., the thin shaft portion 12 is located closer to the ball portion 7 than the shaft portion 13, and the buckling portion 14 is a ball portion 7 opposite to the shaft portion 13. Located on the side.

また、細軸部12は、図8から明らかなように、細長い等径状の丸軸部分12aと、この丸軸部分12aの反ボール部7側の端部に連設され、反ボール部7側に向かって徐々に拡径する截頭円錐状の円錐状部分12bとを有し、この円錐状部分12bの外周面は軸部13の外周面に繋がっている。   Further, as is apparent from FIG. 8, the thin shaft portion 12 is provided continuously to the elongated equal diameter round shaft portion 12 a and the end portion of the round shaft portion 12 a on the side opposite to the ball portion 7. The outer circumferential surface of the conical portion 12 b is connected to the outer circumferential surface of the shaft portion 13.

さらに、細軸部12は、軸部13よりも細く、かつ、座屈部14は、細軸部13よりも細い。すなわち、図1に示すように、細軸部12の外径寸法(細軸部12の等径状の丸軸部分12aの外径寸法)D2は、軸部13の外径寸法D1よりも小さく、かつ、座屈部14の外径寸法D3は、細軸部12の外径寸法D2よりも小さい。   Furthermore, the thin shaft portion 12 is thinner than the shaft portion 13, and the buckling portion 14 is thinner than the thin shaft portion 13. That is, as shown in FIG. 1, the outer diameter dimension of the thin shaft portion 12 (the outer diameter dimension of the equal diameter round shaft portion 12 a of the thin shaft portion 12) D2 is smaller than the outer diameter dimension D1 of the shaft portion 13 Also, the outer diameter D3 of the buckling portion 14 is smaller than the outer diameter D2 of the thin shaft portion 12.

換言すると、ボールスタッド2のスタッド部6は、このスタッド部6の長手方向中間に位置する軸部13と、この軸部13よりも細い細軸部12と、この細軸部12よりも細い座屈部14とを有している(軸部13の外径寸法D1>細軸部12の外径寸法D2>座屈部14の外径寸法D3)。なお、細軸部12の軸方向長さ寸法は、軸部13の軸方向長さ寸法よりも長い。   In other words, in the stud portion 6 of the ball stud 2, the shaft portion 13 located in the longitudinal middle of the stud portion 6, the thin shaft portion 12 thinner than the shaft portion 13, and the seat thinner than the thin shaft portion 12 (The outer diameter dimension D1 of the shaft portion 13> the outer diameter dimension D2 of the thin shaft portion 12> the outer diameter dimension D3 of the buckling portion 14). The axial length dimension of the thin shaft portion 12 is longer than the axial length dimension of the shaft portion 13.

また一方、ハウジング3は、ボールスタッド2のボール部7を覆うハウジング本体部21と、このハウジング本体部21に突設されたねじ軸部22とを有している。ねじ軸部22の外周面には、ねじ溝23が形成されている。   On the other hand, the housing 3 has a housing main body portion 21 covering the ball portion 7 of the ball stud 2 and a screw shaft portion 22 protruding from the housing main body portion 21. A screw groove 23 is formed on the outer peripheral surface of the screw shaft portion 22.

そして、上述したボールジョイント1によれば、ボールスタッド2に細軸部12を形成したため、軽量化を図ることができる。   And according to the ball joint 1 mentioned above, since the thin shaft part 12 is formed in the ball stud 2, weight reduction can be achieved.

1 ボールジョイント
2 ボールスタッド
3 ハウジング
6 スタッド部
7 ボール部
12 細軸部
12a 丸軸部分
12b 円錐状部分
13 軸部
14 座屈部
1 ball joint 2 ball stud 3 housing 6 stud portion 7 ball portion
12 Thin shaft
12a Round shaft part
12b conical part
13 axis part
14 buckling part

Claims (4)

球状のボール部及び軸状のスタッド部を有するボールスタッドと、
このボールスタッドの前記ボール部を覆うハウジングとを備え、
前記ボールスタッドの前記スタッド部は、
軸部と、
この軸部よりも細い細軸部と、
この細軸部よりも細い座屈部とを有する
ことを特徴とするボールジョイント。
A ball stud having a spherical ball portion and an axial stud portion;
And a housing covering the ball portion of the ball stud,
The stud portion of the ball stud is:
With the shaft,
A narrow shaft thinner than this shaft,
A ball joint characterized by having a buckling portion thinner than the thin shaft portion.
細軸部は、軸部よりもボール部側に位置し、
座屈部は、前記軸部よりも反ボール部側に位置する
ことを特徴とする請求項1記載のボールジョイント。
The thin shaft is located closer to the ball than the shaft,
The ball joint according to claim 1, wherein the buckling portion is located on the side opposite to the ball portion with respect to the shaft portion.
細軸部は、
細長い等径状の丸軸部分と、
この丸軸部分の反ボール部側の端部に連設され、反ボール部側に向かって徐々に拡径する截頭円錐状の円錐状部分とを有し、
前記円錐状部分の外周面は、軸部の外周面に繋がっている
ことを特徴とする請求項2記載のボールジョイント。
The thin shaft part is
An elongated, equal diameter round shaft portion,
And a frusto-conical conical portion continuously connected to the end on the non-ball portion side of the round shaft portion and gradually expanding in diameter toward the non-ball portion side,
The ball joint according to claim 2, wherein an outer peripheral surface of the conical portion is connected to an outer peripheral surface of the shaft portion.
細軸部の軸方向長さ寸法は、軸部の軸方向長さ寸法よりも長い
ことを特徴とする請求項1ないし3のいずれか一記載のボールジョイント。
The ball joint according to any one of claims 1 to 3, wherein the axial length dimension of the thin shaft portion is longer than the axial length dimension of the shaft portion.
JP2019003532A 2019-01-11 2019-01-11 Ball joint Pending JP2019124353A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2019003532A JP2019124353A (en) 2019-01-11 2019-01-11 Ball joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2019003532A JP2019124353A (en) 2019-01-11 2019-01-11 Ball joint

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2018000842 Continuation 2018-01-18

Publications (1)

Publication Number Publication Date
JP2019124353A true JP2019124353A (en) 2019-07-25

Family

ID=67398738

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2019003532A Pending JP2019124353A (en) 2019-01-11 2019-01-11 Ball joint

Country Status (1)

Country Link
JP (1) JP2019124353A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0655237A (en) * 1992-06-08 1994-03-01 Rhythm Corp Manufacture of steering tie rod
JPH0737862U (en) * 1993-12-24 1995-07-14 株式会社リズム Tie rod structure of vehicle steering system
US5890394A (en) * 1996-11-08 1999-04-06 Ford Motor Company Hollow steering gear rack with integral air grooves
JP2002173046A (en) * 2000-12-05 2002-06-18 Somic Ishikawa Inc Manufacturing method for arm
JP2007245843A (en) * 2006-03-15 2007-09-27 Hitachi Ltd Tie rod structure of steering system
JP2010230022A (en) * 2009-03-25 2010-10-14 Musashi Seimitsu Ind Co Ltd Ball joint
WO2016206879A1 (en) * 2015-06-25 2016-12-29 Zf Friedrichshafen Ag Axial ball joint

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0655237A (en) * 1992-06-08 1994-03-01 Rhythm Corp Manufacture of steering tie rod
JPH0737862U (en) * 1993-12-24 1995-07-14 株式会社リズム Tie rod structure of vehicle steering system
US5890394A (en) * 1996-11-08 1999-04-06 Ford Motor Company Hollow steering gear rack with integral air grooves
JP2002173046A (en) * 2000-12-05 2002-06-18 Somic Ishikawa Inc Manufacturing method for arm
JP2007245843A (en) * 2006-03-15 2007-09-27 Hitachi Ltd Tie rod structure of steering system
JP2010230022A (en) * 2009-03-25 2010-10-14 Musashi Seimitsu Ind Co Ltd Ball joint
WO2016206879A1 (en) * 2015-06-25 2016-12-29 Zf Friedrichshafen Ag Axial ball joint

Similar Documents

Publication Publication Date Title
US7234693B2 (en) Bearing for a motor vehicle
JP4516079B2 (en) Ball joint
JP5737493B2 (en) Ball stud fastener and stud protrusion
JP6893420B2 (en) Shaft and yoke assembly
US20060075840A1 (en) Rack and pinion type power steering apparatus
JP6253337B2 (en) Ball seat and ball joint
JP2019124353A (en) Ball joint
JP6069731B2 (en) Location pin mounting structure
JP2015078738A5 (en)
JP2011169449A (en) Ball joint
JP2020104613A (en) Steering device
US20210372482A1 (en) Power transmission shaft and method for manufacturing the same
US20150330440A1 (en) Ball joint and steering device including the same
CN110869631B (en) Universal joint and transmission shaft
JP4946583B2 (en) Connecting rod
JP2015169227A (en) Universal joint and steering device having the universal joint
JP2016088116A (en) Cooperation component fixing structure of knuckle
JP2007032706A (en) Fastening function bolt
JP5084410B2 (en) Dynamic damper for propeller shaft
JP6411198B2 (en) Washer
KR101582855B1 (en) Active Roll Stabilizer
JP2019113111A (en) Member fastening structure
KR20230124305A (en) Tie rod of steering apparatus for vehicle and manufacturing method thereof
JP7095883B2 (en) Piping connection structure
JP2018184981A (en) Cross joint and propeller shaft

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20190111

A871 Explanation of circumstances concerning accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A871

Effective date: 20190709

A975 Report on accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A971005

Effective date: 20190911

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20190918

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20191030

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20200115

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20200131

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20200422