JP2593916Y2 - Serration fitting structure of telescopic shaft - Google Patents
Serration fitting structure of telescopic shaftInfo
- Publication number
- JP2593916Y2 JP2593916Y2 JP1993070514U JP7051493U JP2593916Y2 JP 2593916 Y2 JP2593916 Y2 JP 2593916Y2 JP 1993070514 U JP1993070514 U JP 1993070514U JP 7051493 U JP7051493 U JP 7051493U JP 2593916 Y2 JP2593916 Y2 JP 2593916Y2
- Authority
- JP
- Japan
- Prior art keywords
- serration
- shaft
- male
- female
- telescopic shaft
- 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
- Steering Controls (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この考案はセレーションガタ(不
整合)防止を目的とする伸縮自在シャフトのセレーショ
ン嵌合構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a serration fitting structure of a telescopic shaft for preventing serration play (misalignment).
【０００２】[0002]
【従来の技術】伸縮自在シャフトの一例としての自動車
のステアリングシャフトに、伸縮構造を用いてステアリ
ングホイールを運転乗員の手前で前後方向へ移動調節可
能にする場合、一般的には、スプライン又はセレーショ
ン（以下セレーションと記載する）嵌合方式が採用され
る。2. Description of the Related Art When a steering wheel of an automobile as an example of a telescopic shaft is provided with a telescopic structure so that a steering wheel can be adjusted in the front-rear direction in front of a driver, generally, a spline or serration (spline) is used. (Hereinafter referred to as serrations).
【０００３】このセレーション嵌合方式は、図４に示す
ように、ステアリングシャフトを２分割構成して、中実
のロッドでアッパーシャフト１を、中空のパイプでロア
ーシャフト５をそれぞれ形成し、かつ、アッパーシャフ
ト１の下端部に軸太部２を形成してその外周面に軸方向
の雄セレーション３を刻設するとともに、ロアーシャフ
ト５の内周面に前記雄セレーション３と係合する雌セレ
ーション４を軸方向へ刻設している。In this serration fitting system, as shown in FIG. 4, a steering shaft is divided into two parts, and an upper shaft 1 is formed by a solid rod, and a lower shaft 5 is formed by a hollow pipe. A thick shaft portion 2 is formed at the lower end of the upper shaft 1 and a male serration 3 is engraved on the outer peripheral surface thereof in the axial direction, and a female serration 4 engaging with the male serration 3 is formed on the inner peripheral surface of the lower shaft 5. Are engraved in the axial direction.
【０００４】ところで、このセレーション嵌合方式は、
雄セレーション３と雌セレーション４との間にクリアラ
ンスがなければアッパーシャフト１を引き出したり押し
込んだりすることができないために、引出し又は押込み
時以外のときには、このクリアランスが災いしてガタ
(不整合)を発生し、走行中にステアリングシャフトが共
振したりして運転乗員に不快感を生じさせる原因とな
る。[0004] By the way, the serration fitting method is as follows.
If there is no clearance between the male serrations 3 and the female serrations 4, the upper shaft 1 cannot be pulled out or pushed in. Therefore, at times other than when the upper shaft 1 is pulled out or pushed in, the clearance is disturbed and the play is lost.
(Mismatch), causing the steering shaft to resonate during traveling and causing discomfort to the driver.
【０００５】そこで、このガタを無くするために、雄セ
レーション３を一部切欠いて切欠部１１を設け、その切
欠部１１に板ばね１０を載せ、これをロアーシャフト５
に挿入して雌セレーション４に当接させるようにしたス
テアリングコラムのガタ防止構造がある。Therefore, in order to eliminate the backlash, the male serration 3 is partially cut out to form a cutout 11, and a leaf spring 10 is mounted on the cutout 11, and the lower spring 5 is mounted thereon.
There is an anti-rattle structure of the steering column which is inserted into the female serration 4 so as to contact the female serration 4.
【０００６】[0006]
【考案が解決しようとする課題】しかしながら、このガ
タ防止構造では、板ばね１０が偏平なものを湾曲させた
ものであって、その板ばね１０の両側部１０ａ，１０ａ
と雌セレーション４の山が正しく当接することにより、
回転方向のガタを防止するようにしたものであるが、両
側部が谷に位置したり、若しくは一側部は山に、他側部
は谷に位置するなど、当接箇所が設定時に一定となら
ず、したがってガタ防止効果にバラツキが出てしまう。However, in this backlash preventing structure, the leaf spring 10 is formed by bending a flat one, and both side portions 10a, 10a of the leaf spring 10 are bent.
And the mountain of female serration 4 abut correctly,
It is designed to prevent backlash in the rotation direction, but the contact point is fixed at the time of setting, such as both sides are located in the valley, or one side is located in the mountain, the other side is located in the valley. Therefore, the play prevention effect varies.
【０００７】さらに、組付け時に板ばね１０を切欠部１
１に載せて挿入するだけであるために、その挿入の際に
板ばね１０が外れる惧れがあり、したがって組付性が悪
いと云う問題があった。加えて、雄セレーション３に切
欠部１１を設ける加工が必要であるから、コスト上昇を
もたらす欠点があった。Further, the leaf spring 10 is inserted into the notch 1 at the time of assembly.
In this case, the leaf spring 10 may be detached at the time of insertion because the leaf spring 10 is simply inserted on the device 1, and therefore, there is a problem that the assembling property is poor. In addition, since it is necessary to provide the notch 11 in the male serration 3, there is a disadvantage that the cost increases.
【０００８】そこで、この考案は上記不都合を解決して
ガタを生じさせないステアリングシャフトのセレーショ
ン嵌合構造を提供する。Accordingly, the present invention provides a serration fitting structure for a steering shaft that solves the above-mentioned disadvantages and does not cause backlash.
【０００９】[0009]
【課題を解決するための手段】この考案にかかる伸縮自
在シャフトのセレーション嵌合構造は、雌セレーション
を軸方向に形成したシャフトに、該雌セレーションに係
合する雄セレーションを軸方向に形成したシャフトを挿
入してなる伸縮自在シャフトにおいて、前記雄セレーシ
ョンを形成したシャフトの雄セレーションを軸方向で少
なくとも２分割して該雄セレーション間に軸細部を形成
し、該軸細部に、軸細部の周方向に延伸する湾曲した脚
部と、該脚部と同じ方向へ湾曲すると共に、湾曲した脚
部と直交する方向に曲げ形成された胴部とを有する弾性
体からなるガタ防止部材を嵌着し、該ガタ防止部材の前
記胴部を雌セレーションに弾接させたことを特徴とす
る。A serration fitting structure for a telescopic shaft according to the present invention comprises a shaft having a female serration formed in an axial direction and a shaft having a male serration engaged with the female serration formed in an axial direction. The male serration of the shaft on which the male serration is formed is divided into at least two parts in the axial direction to form a shaft detail between the male serrations, and the shaft detail is formed in a circumferential direction of the shaft detail. Curved legs extending into
Part and a curved leg that curves in the same direction as the leg.
A backlash prevention member made of an elastic body having a body portion bent and formed in a direction perpendicular to the portion is fitted, and the body portion of the backlash prevention member is elastically contacted with the female serration.
【００１０】[0010]
【作用】ガタ防止部材は弾性体からなるので、脚部を軸
細部に押し付けると広がって軸細部に嵌着するから装着
が容易であり、脚部は湾曲付勢されているので嵌着して
外れることはなく、外そうとすれば弾性体であるから容
易に外れる。The backlash prevention member is made of an elastic material, so that when the leg is pressed against the details of the shaft, it spreads and fits on the details of the shaft, so that the mounting is easy. It does not come off, and if it does, it will come off easily because it is an elastic body.
【００１１】[0011]
【実施例】以下この考案の実施例を説明する。図１に示
すように、アッパーシャフト１の下端部に形成した軸太
部２に雄セレーション３が刻設されており、この雄セレ
ーション３を嵌合する雌セレーション４がロアーシャフ
ト５の内周面に刻設されている。雄セレーション３は軸
方向へ２分されてその部位に軸細部６が形成され、この
軸細部６にガタ防止部材７が嵌着している。Embodiments of the present invention will be described below. As shown in FIG. 1, a male serration 3 is engraved on a thick shaft portion 2 formed at a lower end portion of an upper shaft 1, and a female serration 4 for fitting the male serration 3 is formed on an inner peripheral surface of a lower shaft 5. It is engraved on. The male serration 3 is bisected in the axial direction, and a shaft detail 6 is formed at the portion. The rattle preventing member 7 is fitted to the shaft detail 6.
【００１２】ガタ防止部材７は軸細部６の外径よりも小
さい内径を有するほぼ環状（Ｃ形）の４本の脚部８とこ
れらの中央部を連結する胴部９とを一体成形した板ばね
などの弾性体からなり、図２（Ｄ）に示すように、展開
してＨ字形になる部材であって、４本の脚部８がそれぞ
れ円弧状に曲げ形成され、また、図２（Ａ）に示すよう
に、胴部９が脚部８と同じ方向へ湾曲するとともに、図
２（Ｂ），（Ｃ）に示すように直交する方向へ曲げ形成
されている。The backlash preventing member 7 is a plate formed by integrally forming four substantially annular (C-shaped) legs 8 having an inner diameter smaller than the outer diameter of the shaft detail 6 and a body 9 connecting the central portions thereof. As shown in FIG. 2 (D), the member is made of an elastic body such as a spring, and is expanded to form an H-shape. The four legs 8 are each formed by bending in an arc shape. As shown in FIG. 2A, the trunk 9 is curved in the same direction as the leg 8, and is formed so as to be bent in a direction perpendicular to the direction as shown in FIGS. 2B and 2C.
【００１３】脚部８は軸細部６の約４分の３を覆う長さ
であり、軸細部６に脱着自在である。また、胴部９の曲
げ形状はその長手方向の略中央部が最も高くなるように
成形されている。The leg 8 is long enough to cover about three-quarters of the shaft detail 6 and is detachable from the shaft detail 6. Further, the bent shape of the body portion 9 is formed such that the substantially central portion in the longitudinal direction is highest.
【００１４】したがって、この胴部の略中央部が雌セレ
ーション４の山４ａに摺接して弾力を生じ、雌セレーシ
ョン４と雄セレーション３間のクリアランスを大きくす
る。したがって、この胴部９に直径方向で相対向する側
の雌セレーション４と雄セレーション３間のクリアラン
スが低下しガタ(不整合)が消滅する。Therefore, a substantially central portion of the body slides on the ridge 4a of the female serration 4 to generate elasticity, thereby increasing the clearance between the female serration 4 and the male serration 3. Therefore, the clearance between the female serration 4 and the male serration 3 on the side diametrically opposed to the body 9 is reduced, and the backlash (misalignment) disappears.
【００１５】そこで、アッパーシャフト１をロアーシャ
フト５に挿入してステアリングシャフトを形成するに際
し、ガタ防止部材の両脚部８をアッパーシャフト１の軸
細部６に押し付け、弾性で脚部８が広げられて軸細部６
に嵌着することによってガタ防止部材をアッパーシャフ
ト１に装着する。したがって、ガタ防止部材の装着作業
は簡単で作業性がよい。Therefore, when the upper shaft 1 is inserted into the lower shaft 5 to form a steering shaft, both legs 8 of the backlash preventing member are pressed against the shaft details 6 of the upper shaft 1 so that the legs 8 are expanded by elasticity. Shaft detail 6
The backlash prevention member is mounted on the upper shaft 1 by fitting the backlash prevention member. Therefore, the mounting operation of the backlash preventing member is simple and has good workability.
【００１６】ついで、アッパーシャフト１の雄セレーシ
ョン３をロアーシャフト５の雌セレーション４に挿入
し、図３に示すように、ガタ防止部材の胴部９の両側部
９ａ，９ａが雌セレーション４の山４ａに当接する。Then, the male serrations 3 of the upper shaft 1 are inserted into the female serrations 4 of the lower shaft 5, and as shown in FIG. 4a.
【００１７】なお、上記実施例ではステアリングシャフ
トのセレーションガタ防止構造に付き説明したが、この
考案は、ステアリングシャフトに限らず、スプラインや
セレーションを用いたその他の伸縮自在シャフトにも適
用できる。In the above embodiment, the structure for preventing serration of the steering shaft is described. However, the present invention can be applied not only to the steering shaft but also to other telescopic shafts using splines or serrations.
【００１８】[0018]
【考案の効果】以上説明したこの考案によれば、ガタ防
止部材は単なる板ばねでなく、胴部が湾曲した脚部を有
して軸細部に嵌着できるから、装着性が良好であり、ま
た、脚部は軸細部を覆う長さなので、セレーション嵌合
の組付け時に外れることがなくて組付け性が向上する。
さらに、脚部が軸細部に嵌着するからこれと同じ方向へ
湾曲する胴部の両側部が雌セレーションの山に当接で
き、したがって、ガタ防止効果のバラツキを防止できる
ため、ガタのない伸縮自在シャフトを得ることができ
る。According to the present invention described above, the backlash preventing member is not a simple leaf spring, but has a leg portion having a curved body portion so that it can be fitted to a shaft detail. Further, since the legs are long enough to cover the details of the shaft , they do not come off during the serration fitting, so that the assemblability is improved .
In addition, the legs fit into the shaft details, so in the same direction
Since both sides of the curved trunk can abut against the peaks of the female serrations, and thus the variation of the rattling prevention effect can be prevented, a telescopic shaft without rattling can be obtained.
【図１】この考案の実施例を示す要部斜視図。FIG. 1 is a perspective view of an essential part showing an embodiment of the present invention.
【図２】ガタ防止部材の正面図（Ａ）、側面図（Ｂ）、
要部拡大図（Ｃ）及び展開図（Ｄ）。FIG. 2 is a front view (A), a side view (B), and a backlash prevention member.
The main part enlarged view (C) and development view (D).
【図３】ガタ防止部材と雌セレーションとの関係を示す
断面図。FIG. 3 is a sectional view showing the relationship between the backlash prevention member and the female serration.
【図４】従来のガタ防止構造を示す斜視図。FIG. 4 is a perspective view showing a conventional backlash preventing structure.
１…アッパーシャフト ３…雄セレーション ４…雌セレーション ４ａ…山 ５…ロアーシャフト ６…軸細部 ７…ガタ防止部材 ８…脚部 ９…胴部 ９ａ…側部 DESCRIPTION OF SYMBOLS 1 ... Upper shaft 3 ... Male serration 4 ... Female serration 4a ... Mountain 5 ... Lower shaft 6 ... Shaft detail 7 ... Anti-rattle member 8 ... Leg 9 ... Trunk 9a ... Side
Claims (1)
フトに、該雌セレーションに係合する雄セレーションを
軸方向に形成したシャフトを挿入してなる伸縮自在シャ
フトにおいて、前記雄セレーションを形成したシャフト
の雄セレーションを軸方向で少なくとも２分割して該雄
セレーション間に軸細部を形成し、該軸細部に、軸細部
の周方向に延伸する湾曲した脚部と、該脚部と同じ方向
へ湾曲すると共に、湾曲した脚部と直交する方向に曲げ
形成された胴部とを有する弾性体からなるガタ防止部材
を嵌着し、該ガタ防止部材の前記胴部を雌セレーション
に弾接させたことを特徴とする伸縮自在シャフトのセレ
ーション嵌合構造。1. A telescopic shaft having a female serration formed in the axial direction and a male serration engaged with the female serration inserted in the axial direction into a shaft. the thin shaft portion is formed between the male serration and at least two split the male serration axially, to the axis detail, thin shaft portion
A curved leg extending in the circumferential direction, and the same direction as the leg
And bent in a direction perpendicular to the curved leg
A serration fitting structure for a telescopic shaft, wherein a play preventing member made of an elastic body having a formed body is fitted, and the body of the play preventing member is elastically contacted with a female serration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993070514U JP2593916Y2 (en) | 1993-12-28 | 1993-12-28 | Serration fitting structure of telescopic shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993070514U JP2593916Y2 (en) | 1993-12-28 | 1993-12-28 | Serration fitting structure of telescopic shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0740360U JPH0740360U (en) | 1995-07-18 |
| JP2593916Y2 true JP2593916Y2 (en) | 1999-04-19 |
Family
ID=13433721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1993070514U Expired - Lifetime JP2593916Y2 (en) | 1993-12-28 | 1993-12-28 | Serration fitting structure of telescopic shaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2593916Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007227370A (en) * | 2006-01-31 | 2007-09-06 | Valeo Vision | Cleaning device for vehicle headlight lens |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3835147B2 (en) * | 1999-10-28 | 2006-10-18 | 日本精工株式会社 | Stretchable shaft coupling structure |
| JP3853150B2 (en) * | 1999-12-02 | 2006-12-06 | 株式会社ジェイテクト | Telescopic shaft |
| JP5641333B2 (en) * | 2011-01-25 | 2014-12-17 | 株式会社ジェイテクト | Telescopic shaft and vehicle steering device |
-
1993
- 1993-12-28 JP JP1993070514U patent/JP2593916Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007227370A (en) * | 2006-01-31 | 2007-09-06 | Valeo Vision | Cleaning device for vehicle headlight lens |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0740360U (en) | 1995-07-18 |
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