JPS621011Y2 - - Google Patents
Info
- Publication number
- JPS621011Y2 JPS621011Y2 JP1980101891U JP10189180U JPS621011Y2 JP S621011 Y2 JPS621011 Y2 JP S621011Y2 JP 1980101891 U JP1980101891 U JP 1980101891U JP 10189180 U JP10189180 U JP 10189180U JP S621011 Y2 JPS621011 Y2 JP S621011Y2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- rack
- inner cylinder
- gear housing
- pinion
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 241001247986 Calotropis procera Species 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Support Of The Bearing (AREA)
- Bearings For Parts Moving Linearly (AREA)
Description
【考案の詳細な説明】
この考案は、ラツクアンドピニオン式のステア
リング装置に関するもので、特にギヤハウジング
に配されるラツク軸或はピニオン軸の軸受を利用
することにより構造を簡単にしてラツク軸とピニ
オン軸とのバツクラツシユを除去したステアリン
グ装置を提供せんとするものである。[Detailed description of the invention] This invention relates to a rack-and-pinion type steering device. In particular, the structure is simplified by using a bearing for the rack shaft or pinion shaft arranged in the gear housing. It is an object of the present invention to provide a steering device that eliminates backlash with a pinion shaft.
一般に、ラツクアンドピニオン式のステアリン
グ装置は、第1図及び第2図に示す様に、ギヤハ
ウジング1内に水平方向にラツク軸2を浮かせた
状態で両端を貫通突出させ、且つギヤハウジング
1の両端部に装着させたラツク軸受3,3にて左
右に移動自在に支持させ、一方ギヤハウジング1
に前記ラツク軸2と直交させてピニオン軸4の先
端を挿入し、且つギヤハウジング1上下端に装着
させたピニオン軸受5,5にて回転自在に支持さ
せてある。そしてラツク軸2の中央部下面に刻設
した歯面6とピニオン軸4の先部周面に刻設した
歯車7とを噛合させてある。またラツク軸2の両
端は、ホイールに連結されるタイロツド(図示せ
ず)に連結してあり、ピニオン軸4の突出端は、
ハンドルに連結されるステアリングシヤフト(図
示せず)に連結されている。 In general, a rack-and-pinion type steering device has a rack shaft 2 suspended horizontally within a gear housing 1, with both ends protruding through the gear housing 1, as shown in FIGS. 1 and 2. The gear housing 1 is supported movably left and right by rack bearings 3 mounted on both ends.
The tip of a pinion shaft 4 is inserted perpendicularly to the rack shaft 2, and is rotatably supported by pinion bearings 5, 5 mounted on the upper and lower ends of the gear housing 1. A tooth surface 6 carved on the lower surface of the center of the rack shaft 2 and a gear 7 carved on the peripheral surface of the tip of the pinion shaft 4 are meshed with each other. Both ends of the rack shaft 2 are connected to tie rods (not shown) that are connected to the wheel, and the protruding end of the pinion shaft 4 is
It is connected to a steering shaft (not shown) that is connected to a steering wheel.
そしてハンドルからの回転をピニオン軸4を介
してラツク軸2に伝達し、ラツク軸2を左右に移
動させてホイールを操作させている。ところで、
上記構成のステアリング装置では、ハンドルの操
舵時は、ラツク軸2の歯面6とピニオン軸4の歯
車7とが十分に噛合して接触しており、バツクラ
ツシユを生じることはないが、直進走行時には、
ラツク軸2とピニオン軸4とが十分に噛合してお
らず、若干のバツクラツシユを生じている為に走
行振動により騒音を生じるといつた問題があつ
た。 The rotation from the handle is transmitted to the rack shaft 2 via the pinion shaft 4, and the rack shaft 2 is moved left and right to operate the wheel. by the way,
In the steering device with the above configuration, when the steering wheel is steered, the tooth surface 6 of the rack shaft 2 and the gear 7 of the pinion shaft 4 are in sufficient meshing contact and do not cause backlash, but when driving straight ahead, ,
There was a problem in that the rack shaft 2 and pinion shaft 4 did not mesh sufficiently, causing some backlash, which caused noise due to running vibrations.
そこで、従来は、第3図に示す様にラツク軸2
と直交の平面内において、ラツク軸2の中心を通
る軸心に沿つてギヤハウジング1にスプリングケ
ース8を一体に形成し、当該スプリングケース8
内に押圧部材9を摺動自在に挿入し、スプリング
ケース8に螺挿させた螺子杆8aと押圧部材9と
の間に圧縮間在させたスプリング10にて押圧部
材9を介してラツク軸2をピニオン軸4に押圧さ
せているが、構造が複雑になりしかも構成部材も
多く、コスト高になると共にスプリング10の調
整が困難であり、バツクラツシユも完全に除去さ
れるものではなかつた。 Therefore, conventionally, as shown in Fig. 3, the rack shaft 2
A spring case 8 is integrally formed with the gear housing 1 along an axis passing through the center of the rack shaft 2 in a plane orthogonal to
A pressing member 9 is slidably inserted therein, and a spring 10 compressed and interposed between the pressing member 9 and a screw rod 8a screwed into the spring case 8 is used to push the rack shaft 2 through the pressing member 9. is pressed against the pinion shaft 4, but the structure is complicated, there are many components, the cost is high, and the adjustment of the spring 10 is difficult, and backlash cannot be completely eliminated.
この考案は、上記従来のステアリング装置の問
題点に鑑み、これを改良除去したもので、ラツク
軸或はピニオン軸の軸受を利用してラツク軸或は
ピニオン軸を変位させてバツクラツシユを防止せ
しめたものである。 This invention was developed by improving and eliminating the above-mentioned problems of the conventional steering device, and using the bearing of the rack shaft or pinion shaft to displace the rack shaft or pinion shaft to prevent backlash. It is something.
以下、この考案の構成をラツク軸の軸受に適用
した場合について図面を参照して説明する。 Hereinafter, a case where the configuration of this invention is applied to a rack shaft bearing will be explained with reference to the drawings.
第4図に於いて、11はギヤハウジング、12
はギヤハウジング11内に移動可能に浮かせて挿
入したラツク軸、13はラツク軸12をギヤハウ
ジング11に対して所定の配置関係で且つ摺動自
在に支持するラツク軸受である。このラツク軸受
13は、ラツク軸12の外周面に摺動自在に嵌合
する内筒14と、ギヤハウジング11の内周面に
嵌合固定される外筒15と、前記内筒14と外筒
15との間に間在され、両端の内外周縁に形成し
た鍔17,18にて内筒14と、外筒15とを結
合させるゴムブツシユ16とで構成されており、
外筒15及びゴムブツシユ16の一部に夫々貫通
孔19,20を形成してある。一方ギヤハウジン
グ11の端部周面のピニオン軸(図示せず)と反
対側にボルト孔21を形成してある。 In Fig. 4, 11 is a gear housing, 12
Reference numeral 13 indicates a rack shaft which is movably inserted into the gear housing 11 in a floating manner, and 13 is a rack bearing which supports the rack shaft 12 in a predetermined arrangement relation with respect to the gear housing 11 in a slidable manner. The rack bearing 13 includes an inner cylinder 14 that is slidably fitted to the outer peripheral surface of the rack shaft 12, an outer cylinder 15 that is fitted and fixed to the inner peripheral surface of the gear housing 11, and the inner cylinder 14 and the outer cylinder. It is composed of a rubber bush 16 which is interposed between the inner cylinder 14 and the outer cylinder 15 and which is connected to the inner cylinder 14 and the outer cylinder 15 by flanges 17 and 18 formed on the inner and outer peripheral edges of both ends,
Through holes 19 and 20 are formed in a portion of the outer cylinder 15 and the rubber bush 16, respectively. On the other hand, a bolt hole 21 is formed on the peripheral surface of the end portion of the gear housing 11 on the side opposite to the pinion shaft (not shown).
而してラツク軸受13の外筒15及びゴムブツ
シユ16の貫通孔19,20をギヤハウジング1
1のボルト孔21に対応させた状態で、内筒14
をラツク軸12の外周面に嵌挿させ、外筒15を
ギヤハウジング15の内周面に嵌合固定させて、
貫通孔19,20とボルト孔21とを一致させ
る。この後ギヤハウジング11のボルト孔21に
外部からボルト22を螺挿させ、当該ボルト22
の先端にてラツク軸受13の内筒14を押圧し、
ゴムブツシユ16を弾性変形させて内筒14の中
心をギヤハウジング11の中心から所定量変位さ
せ、この後ボルト22に螺合させたナツト23を
締付けてボルト22を固定する。尚、ギヤハウジ
ング11の図示していない他端に装着されてラツ
ク軸12を支持するラツク軸受は、従来と同様の
軸受を用いる。 Then, the through holes 19 and 20 of the outer cylinder 15 of the easy bearing 13 and the rubber bush 16 are connected to the gear housing 1.
The inner cylinder 14 is aligned with the bolt hole 21 of 1.
is fitted onto the outer peripheral surface of the rack shaft 12, and the outer cylinder 15 is fitted and fixed onto the inner peripheral surface of the gear housing 15.
The through holes 19 and 20 and the bolt hole 21 are aligned. After that, screw the bolt 22 into the bolt hole 21 of the gear housing 11 from the outside, and
Press the inner cylinder 14 of the easy bearing 13 with the tip of the
The rubber bush 16 is elastically deformed to displace the center of the inner cylinder 14 from the center of the gear housing 11 by a predetermined amount, and then the nut 23 screwed onto the bolt 22 is tightened to fix the bolt 22. The rack bearing mounted on the other end (not shown) of the gear housing 11 to support the rack shaft 12 is the same as a conventional bearing.
上記構成であれば、ギヤハウジング11に装着
される一方のラツク軸受13にて、ラツク軸12
と嵌合する内筒14の中心がギヤハウジング11
の中心に対して変位され、これに支持されるラツ
ク軸12の支持点での中心が変位してラツク軸1
2がピニオン軸側に弾性的に押圧接触し、各歯面
は常時接触することになり、バツクラツシユは除
去される。また、ラツク軸とピニオン軸との噛合
状態の調整は、ギヤハウジング11に螺挿させた
ボルト22の締付量を調整し、ラツク軸受13の
内筒14の変位置を適当に設定することにより簡
単に調整できる。 With the above configuration, one of the rack bearings 13 mounted on the gear housing 11 allows the rack shaft 12
The center of the inner cylinder 14 that fits into the gear housing 11
The center of the support point of the rack shaft 12, which is supported by the rack shaft 12, is displaced with respect to the center of the rack shaft 1.
2 is elastically pressed into contact with the pinion shaft side, each tooth surface is in constant contact, and backlash is eliminated. Further, the meshing state between the rack shaft and the pinion shaft can be adjusted by adjusting the amount of tightening of the bolt 22 screwed into the gear housing 11, and by appropriately setting the displacement position of the inner cylinder 14 of the rack bearing 13. Easy to adjust.
尚、上記説明では、ラツク軸を支持するラツク
軸受に適用した場合について説明したが、これに
限定されるものではなく、ピニオン軸を支持する
ピニオン軸受に適用しても同様の作用効果が得ら
れる。 In the above explanation, the case where the present invention is applied to a rack bearing that supports a rack shaft has been explained, but the present invention is not limited to this, and the same effect can be obtained even if it is applied to a pinion bearing that supports a pinion shaft. .
以上説明した様に、この考案はラツクアンドピ
ニオン式のステアリング装置に於いて、ラツク軸
或いはピニオン軸に嵌合され、該軸を摺動及び回
動自在に支承する内筒と、該内筒の外周面に一体
に固着され、その一部に上記軸の軸線に直交する
方向の貫通孔を有し、上記内筒と一体的に上記軸
をギヤハウジング内で上記軸線に直交する方向に
弾性変位可能に軸承するゴムブツシユと、ギヤハ
ウジングに上記軸の軸線と直交する方向へ進退可
能に螺合され、先端を上記ゴムブツシユの貫通孔
を通して上記内筒の外周面に当接したボルトとを
具備させたから、ボルトにより内筒と共にラツク
軸或いはピニオン軸を直接押すと、ボルトで押し
た分だけ十分な軸心移動が得られるもので、この
場合、軸受自体が内筒付きゴムブツシユという弾
性軸受であるので、この軸受以外にスプリング等
の特別な部材を必要とせず、軸受自体(即ちゴム
ブツシユ)の弾性を利用して上記軸心移動作用が
得られるため、構成的に簡単で安価であり、特
に、ボルトで直接強制的に変位させ、この状態を
保持させ得るので、走行振動に対しても、スプリ
ングで変位させるものの如き共振的現象を生じ
ず、ラツク・ピニオンの噛合部のバツクラツシユ
を合理的に除去することができる。 As explained above, this invention is applicable to rack-and-pinion type steering devices, including an inner cylinder that is fitted onto a rack shaft or a pinion shaft and supports the shaft in a slidable and rotatable manner; It is integrally fixed to the outer peripheral surface and has a through hole in a direction perpendicular to the axis of the shaft in a part thereof, so that the shaft can be elastically displaced in the direction perpendicular to the axis within the gear housing integrally with the inner cylinder. This is because the gear housing is provided with a rubber bushing that can be supported on the shaft, and a bolt that is screwed into the gear housing so that it can move forward and backward in a direction perpendicular to the axis of the shaft, and whose tip abuts on the outer peripheral surface of the inner cylinder through the through hole of the rubber bushing. If you directly push the rack shaft or pinion shaft together with the inner cylinder with a bolt, you can obtain sufficient axis movement by the amount of push with the bolt.In this case, the bearing itself is an elastic bearing called a rubber bush with an inner cylinder, so Since this bearing does not require any special members such as springs and uses the elasticity of the bearing itself (i.e., the rubber bushing), it is structurally simple and inexpensive, and is especially easy to use with bolts. Since it can be directly forcibly displaced and maintained in this state, it does not cause resonance phenomena such as those caused by displacement with a spring even in response to running vibrations, and rationally eliminates backlash in the meshing part of the rack and pinion. Can be done.
第1図は一般的なステアリング装置のラツク軸
とピニオン軸との噛合状態を示す縦断正面図、第
2図はその横断底面図、第3図は従来のステアリ
ング装置のバツクラツシユを防止する構成を示す
要部断面図、第4図は本考案に係るステアリング
装置の構造を示す要部断面図である。
1・・ギヤハウジング、12・・ラツク軸、1
3・・ラツク軸受、14・・内筒、15・・外
筒、16・・ゴムブツシユ、22・・ボルト。
Fig. 1 is a longitudinal sectional front view showing the meshing state of the rack shaft and pinion shaft of a general steering device, Fig. 2 is a cross-sectional bottom view thereof, and Fig. 3 shows a configuration for preventing backlash of a conventional steering device. FIG. 4 is a sectional view of essential parts showing the structure of the steering device according to the present invention. 1. Gear housing, 12. Rack shaft, 1
3..Rack bearing, 14..Inner cylinder, 15..Outer cylinder, 16..Rubber bushing, 22..Bolt.
Claims (1)
於いて、ラツク軸或いはピニオン軸に嵌合され、
該軸を摺動及び回動自在に支承する内筒と、該内
筒の外周面に一体に固着され、その一部に上記軸
の軸線に直交する方向の貫通孔を有し、上記内筒
と一体的に上記軸をギヤハウジング内で上記軸線
に直交する方向に弾性変位可能に軸承するゴムブ
ツシユと、ギヤハウジングに上記軸の軸線と直交
する方向へ進退可能に螺合され、先端を上記ゴム
ブツシユの貫通孔を通して上記内筒の外周面に当
接したボルトとを具備させたことを特徴とするス
テアリング装置。 In a rack and pinion type steering device, it is fitted to the rack shaft or pinion shaft,
an inner cylinder that slidably and rotatably supports the shaft; and an inner cylinder that is integrally fixed to the outer peripheral surface of the inner cylinder and has a through hole in a part thereof in a direction perpendicular to the axis of the shaft; and a rubber bush which integrally supports the shaft in a gear housing so as to be elastically displaceable in a direction orthogonal to the axis; A steering device comprising: a bolt that abuts the outer circumferential surface of the inner cylinder through the through hole.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1980101891U JPS621011Y2 (en) | 1980-07-17 | 1980-07-17 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1980101891U JPS621011Y2 (en) | 1980-07-17 | 1980-07-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5724175U JPS5724175U (en) | 1982-02-08 |
JPS621011Y2 true JPS621011Y2 (en) | 1987-01-10 |
Family
ID=29463320
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1980101891U Expired JPS621011Y2 (en) | 1980-07-17 | 1980-07-17 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS621011Y2 (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5173425U (en) * | 1974-12-05 | 1976-06-09 |
-
1980
- 1980-07-17 JP JP1980101891U patent/JPS621011Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5724175U (en) | 1982-02-08 |
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