JPS6217625Y2 - - Google Patents
Info
- Publication number
- JPS6217625Y2 JPS6217625Y2 JP1982065668U JP6566882U JPS6217625Y2 JP S6217625 Y2 JPS6217625 Y2 JP S6217625Y2 JP 1982065668 U JP1982065668 U JP 1982065668U JP 6566882 U JP6566882 U JP 6566882U JP S6217625 Y2 JPS6217625 Y2 JP S6217625Y2
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- steel balls
- ring
- cage
- cylindrical
- 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
- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 239000010959 steel Substances 0.000 claims description 26
- 230000000694 effects Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000036316 preload Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000001771 impaired effect 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】
［産業上の利用分野］
この考案はラツクピニオンステアリング装置の
ようにラツク軸がハウジングに対して相対的に軸
方向に移動する装置の軸をハウジングに転動体を
介して支持させるための有限ストロークベアリン
グに関する。[Detailed description of the invention] [Field of industrial application] This invention is a system in which the shaft of a device, such as a rack and pinion steering device, moves in the axial direction relative to the housing, by connecting the shaft to the housing via rolling elements. Concerning finite stroke bearings for support.
［従来の技術］
外筒と内筒との間に多数の鋼球が転動自在に配
され、この鋼球が外筒と内筒の間に配された円筒
状の保持器のポケツト孔に遊嵌され、鋼球の転動
により外筒と内筒が相対的に軸方向に移動可能と
された有限ストロークベアリングは、鋼球の転動
時に鋼球にすべりが生じなければ外筒と内筒の相
対ストローク量Ｓに対し保持器はＳ／２だけ移動
するものであり、保持器と外筒及び内筒との位置
関係がくるうことがないが、実際上鋼球のすべり
を零にすることはできず中立位置で保持器が初め
に中央にセツトしてあつても作動にともなつて保
持器が中央位置から軸方向のいずれか一方にかた
よつてずれてしまうという欠点があるものであ
る。[Prior art] A large number of steel balls are rotatably arranged between an outer cylinder and an inner cylinder, and these steel balls are inserted into pocket holes of a cylindrical retainer arranged between the outer cylinder and the inner cylinder. A finite stroke bearing is loosely fitted and allows the outer cylinder and inner cylinder to move relative to each other in the axial direction due to the rolling of the steel balls.If the steel balls do not slip when the steel balls roll, the outer cylinder and the inner cylinder will move. The cage moves by S/2 with respect to the relative stroke amount S of the cylinder, and the positional relationship between the cage and the outer cylinder and inner cylinder will not change, but in reality, the slippage of the steel balls can be reduced to zero. There is a drawback that even if the cage is initially set in the center at the neutral position, the cage will shift from the center position to one side in the axial direction as it operates. It is.
このため保持器の両端にばねを挿入してばね力
で保持器が中央位置に戻されるようにしていた。
（例えば特公昭54−30464号）
［考案が解決しようとする問題点］
しかしながら、保持器の両端にばねを挿入して
ばね力で保持器が中央位置に戻されるようにした
ものでは外筒と内筒の移動抵抗が重くなり、また
有限ストロークベアリングがかさばつたものとな
るし、部品点数が多くなるという問題がある。 For this purpose, springs are inserted at both ends of the cage so that the spring force returns the cage to the central position.
(For example, Japanese Patent Publication No. 54-30464) [Problems to be solved by the invention] However, in the case where springs are inserted at both ends of the cage so that the cage is returned to the center position by the spring force, the outer cylinder There are problems in that the movement resistance of the inner cylinder becomes heavy, the finite stroke bearing becomes bulky, and the number of parts increases.
［問題点を解決するための手段］
この考案は、多数の鋼球と、該鋼球を回動自在
に保持する多数のポケツト孔を有する円筒形の保
持器と、該保持器に保持された前記鋼球に外接す
る内面を有しかつ一方の端面から他方の端面に連
通するスリツトを有する薄肉円筒状の軌道輪と、
該軌道輪に外嵌する円筒状の弾性部材とにより有
限ストロークベアリングを構成し、前記問題点を
解決したものである。[Means for solving the problem] This invention consists of a cylindrical cage having a large number of steel balls, a number of pocket holes for rotatably holding the steel balls, and a cylindrical cage that holds the steel balls in a rotatable manner. a thin cylindrical bearing ring having an inner surface circumscribing the steel ball and having a slit communicating from one end surface to the other end surface;
This problem is solved by constructing a finite stroke bearing with a cylindrical elastic member that fits onto the bearing ring.
［作用］
この考案の有限ストロークベアリングは、保持
器のポケツト孔に保持された多数の鋼球に外接す
る薄肉円筒状の軌道輪が一方の端面から他方の端
面に連通するスリツトを有しており、この軌道輪
に円筒状の弾性部材である弾性リングが外嵌して
いるので、この有限ストロークベアリングをハウ
ジングに圧入すると弾性リングが軌道輪を外方よ
り押圧するので軌道輪はスリツトの間隔が狭まる
ように弾性変形し、結果的に軌道輪の直径が縮少
するので、有限ストロークベアリングにより支持
する軸の外面に鋼球を圧接し鋼球に予圧を与える
ことが出来る。[Operation] In the finite stroke bearing of this invention, a thin cylindrical bearing ring circumscribing a large number of steel balls held in pocket holes of a retainer has a slit that communicates from one end surface to the other end surface. An elastic ring, which is a cylindrical elastic member, is fitted onto this bearing ring, so when this finite stroke bearing is press-fitted into the housing, the elastic ring presses the bearing ring from the outside, so the spacing between the slits in the bearing ring is reduced. Since the bearing ring is elastically deformed to become narrower and the diameter of the bearing ring is reduced, a preload can be applied to the steel ball by pressing the steel ball against the outer surface of the shaft supported by the finite stroke bearing.
［実施例］
次にこの考案に係る第一の実施例を第１図乃至
第３図により説明する。[Embodiment] Next, a first embodiment of this invention will be described with reference to FIGS. 1 to 3.
５はラツクピニオン式舵取装置のラツク軸、６
はラツク軸５を本考案の有限ストロークベアリン
グで軸支するハウジング、７はラツク軸５の外周
面との間にすきまＣを有してハウジング６に止め
輪８で固定されたリング部材である。 5 is the rack shaft of the rack and pinion type steering device, 6
Reference numeral 7 designates a housing that supports the rack shaft 5 using the limited stroke bearing of the present invention, and 7 a ring member fixed to the housing 6 with a retaining ring 8 with a gap C between it and the outer peripheral surface of the rack shaft 5.
有限ストロークベアリングは多数の鋼球４と、
鋼球４を保持する多数のポケツト孔を有する円筒
形の保持器３と、鋼球４に外接する薄肉円筒形で
軸方向にねじれたスリツト２１を有する軌道輪２
と、軌道輪２に外嵌したゴム等の弾性リング１と
からなる。軌道輪２のスリツト２１は第３図に示
す斜一直線のものにかぎらず、軸線に平行でも、
くの字状等になつたものでもよい。 The finite stroke bearing has a large number of steel balls 4,
A cylindrical retainer 3 having a large number of pocket holes for holding steel balls 4, and a bearing ring 2 having a thin-walled cylindrical slit 21 circumscribing the steel balls 4 and having an axially twisted slit 21.
and an elastic ring 1 made of rubber or the like which is fitted onto a bearing ring 2. The slit 21 of the bearing ring 2 is not limited to the diagonally straight line shown in Fig. 3, but can also be parallel to the axis.
It may be in a dogleg shape or the like.
弾性リング１には半径方向内側にのび軌道輪２
の側端面に接するフランジ１１，１１及び外周面
に僅か突出した数個の環状突起１２が設けられて
おり、弾性リング１をハウジング６に圧入する
と、前述のごとく鋼球４はラツク軸５に押つけら
れる。 The elastic ring 1 has a bearing ring 2 extending radially inward.
flanges 11, 11 in contact with the side end surfaces of the ring and several annular protrusions 12 slightly protruding from the outer peripheral surface are provided. When the elastic ring 1 is press-fitted into the housing 6, the steel ball 4 is pushed onto the rack shaft 5 as described above. Can be attached.
この状態でラツク軸５が軸方向に摺動すると、
鋼球４は予圧された状態にあるのですべりを生ず
ることなく転動する。 When the rack shaft 5 slides in the axial direction in this state,
Since the steel balls 4 are in a preloaded state, they roll without slipping.
ハウジング６と弾性リング１の相対的な直径寸
法を適宜選定することにより適度の予圧量を鋼球
４に与えることができる。 By appropriately selecting the relative diameter dimensions of the housing 6 and the elastic ring 1, an appropriate amount of preload can be applied to the steel ball 4.
このためラツク軸５が中立位置にあるとき弾性
リングのフランジ１１と保持器３の端面間の間隔
の寸法をラツク軸５のストローク量Ｓの1/4にセ
ツトしておけばよい。 Therefore, when the rack shaft 5 is in the neutral position, the distance between the flange 11 of the elastic ring and the end face of the retainer 3 may be set to 1/4 of the stroke amount S of the rack shaft 5.
第４図及び第５図に示す第２の実施例は波形に
形成した薄板鋼板を円筒状にまるめて弾性リング
１０として用いた例で、その作用は第１の実施例
と同様である。この有限ストロークベアリングは
ハウジング１６に挿着され両端が側板１７を介し
て止め輪１８によりハウジング１６に固定されて
いる。 The second embodiment shown in FIGS. 4 and 5 is an example in which a corrugated thin steel plate is rolled into a cylindrical shape and used as the elastic ring 10, and its function is similar to that of the first embodiment. This limited stroke bearing is inserted into the housing 16, and both ends are fixed to the housing 16 with retaining rings 18 via side plates 17.
［考案の効果］
以上のように構成したこの考案の有限ストロー
クベアリングはほとんど保持器ずれが生じないた
め従来のように保持器を中央位置に戻すためのば
ねを設ける必要がなくコンパクトであり、保持器
ずれしないため長期にわたつて作動性が損われる
ことがなく、多少振動があるところで使用しても
軸と軸受の打音が発生することがない等の効果を
奏する。[Effects of the invention] The finite stroke bearing of this invention constructed as described above has almost no cage displacement, so there is no need to provide a spring to return the cage to the center position as in the conventional case, and the bearing is compact and easy to retain. Since the device does not shift, its operability will not be impaired over a long period of time, and even if it is used in a place where there is some vibration, there will be no knocking noise from the shaft and bearing.
ラツクピニオン式舵取装置の場合には、従来の
すべり軸受にかわりこの考案の有限ストロークベ
アリングを採用することにより、ハンドル操作が
軽くなりギヤ比を大きくしないで据切力を低下さ
せることができる。また、ハンドルの復元性が向
上すると共に、鋼球とラツク軸との間にすきまが
できないので振動による異音が生じない。さら
に、リング部材とラツク軸とのすきまＣを適宜な
値に選定しておくことにより通常使用範囲外の大
きなラジアル荷重がラツク軸に作用した場合、弾
性リングが変形し、ラツク軸がすきまＣだけ変位
することが可能にできるので、ラツク軸をリング
部材に当接させることにより大きなラジアル荷重
を受けさせることができ、鋼球や軌道輪に大荷重
が作用することが防止でき、ラツク軸に鋼球の圧
痕がついてしまうことがない等の効果を奏する。 In the case of a rack and pinion type steering device, by using the finite stroke bearing of this invention in place of the conventional sliding bearing, the steering wheel operation becomes easier and the stationary force can be reduced without increasing the gear ratio. Furthermore, the restorability of the handle is improved, and since no gap is created between the steel ball and the rack shaft, no abnormal noise is generated due to vibration. Furthermore, by selecting an appropriate value for the clearance C between the ring member and the rack shaft, if a large radial load outside of the normal usage range is applied to the rack shaft, the elastic ring will deform and the rack shaft will be closed by the clearance C. Since the easy shaft can be displaced, it is possible to receive a large radial load by bringing the easy shaft into contact with the ring member, and it is possible to prevent large loads from acting on the steel balls and bearing rings. This has the effect of preventing the impression of the ball from being left behind.
第１図は本考案の有限ストロークベアリングの
第１の実施例を示す縦断面図で、ラツクピニオン
式舵取装置のラツク軸を支承した状態を示す図、
第２図は第１図の−線における部分横断面
図、第３図は第１図の有限ストロークベアリング
の部品である軌道輪の斜視図、第４図は本考案の
有限ストロークベアリングの第２の実施例の上半
部の縦断面図、第５図は第４図の−線におけ
る部分横断面図である。
符号の説明、１，１０……弾性リング、２……
軌道輪、３……保持器、４……鋼球、５……ラツ
ク軸、６，１６……ハウジング、７……リング部
材、８，１８……止め輪、１７……側板。
FIG. 1 is a longitudinal cross-sectional view showing the first embodiment of the limited stroke bearing of the present invention, showing the state in which it supports the rack shaft of a rack and pinion type steering device;
Fig. 2 is a partial cross-sectional view taken along the - line in Fig. 1, Fig. 3 is a perspective view of a bearing ring which is a component of the finite stroke bearing of Fig. 1, and Fig. 4 is a partial cross-sectional view of the finite stroke bearing of the present invention. FIG. 5 is a partial cross-sectional view taken along the line - in FIG. 4. Explanation of symbols, 1, 10...Elastic ring, 2...
Raceway ring, 3...Cage, 4...Steel ball, 5...Rack shaft, 6, 16...Housing, 7...Ring member, 8, 18...Retaining ring, 17...Side plate.
Claims (1)
数のポケツト孔を有する円筒形の保持器と、該保
持器に保持された前記鋼球に外接する内面を有し
かつ一方の端面から他方の端面に連通するスリツ
トを有する薄肉円筒状の軌道輪と、該軌道輪に外
嵌する円筒状の弾性部材とからなる有限ストロー
クベアリング。 A cylindrical cage having a large number of steel balls, a large number of pocket holes for rotatably holding the steel balls, and an inner surface that circumscribes the steel balls held in the cage, and one end surface. A finite stroke bearing consisting of a thin cylindrical bearing ring having a slit that communicates with the other end face, and a cylindrical elastic member that fits around the bearing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6566882U JPS58169220U (en) | 1982-05-07 | 1982-05-07 | Limited stroke bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6566882U JPS58169220U (en) | 1982-05-07 | 1982-05-07 | Limited stroke bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58169220U JPS58169220U (en) | 1983-11-11 |
| JPS6217625Y2 true JPS6217625Y2 (en) | 1987-05-07 |
Family
ID=30075614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6566882U Granted JPS58169220U (en) | 1982-05-07 | 1982-05-07 | Limited stroke bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58169220U (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6128918U (en) * | 1984-07-23 | 1986-02-21 | 日本精工株式会社 | Steering handle position adjustment device |
| JPH0440022Y2 (en) * | 1987-12-29 | 1992-09-18 | ||
| JPH0749067Y2 (en) * | 1989-08-01 | 1995-11-13 | 株式会社森精機製作所 | Ball bearings for rotary and linear motion |
| KR100554001B1 (en) * | 2002-04-15 | 2006-02-22 | 한국델파이주식회사 | Ball bearing assembly for absorbing impact energy and vibration |
| JP6113573B2 (en) | 2013-05-08 | 2017-04-12 | Nok株式会社 | Center bearing support |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5614623A (en) * | 1979-07-13 | 1981-02-12 | Nippon Seiko Kk | Bearing for vehicle steering shaft |
-
1982
- 1982-05-07 JP JP6566882U patent/JPS58169220U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5614623A (en) * | 1979-07-13 | 1981-02-12 | Nippon Seiko Kk | Bearing for vehicle steering shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58169220U (en) | 1983-11-11 |
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