JPS6334325B2 - - Google Patents
Info
- Publication number
- JPS6334325B2 JPS6334325B2 JP58133983A JP13398383A JPS6334325B2 JP S6334325 B2 JPS6334325 B2 JP S6334325B2 JP 58133983 A JP58133983 A JP 58133983A JP 13398383 A JP13398383 A JP 13398383A JP S6334325 B2 JPS6334325 B2 JP S6334325B2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- outer member
- rollers
- roller
- way clutch
- 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 7
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2/00—Friction-grip releasable fastenings
- F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
- F16B2/16—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using rollers or balls
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
この発明はローラを用いたワンウエイクラツチ
に関するもので、チエーンやベルトのテンシヨン
プーリの支持軸などのほか、一方向のみの直線運
動を許容する機構として種々の分野において利用
することができる。[Detailed Description of the Invention] Industrial Application Field This invention relates to a one-way clutch using rollers, which can be used as a support shaft for a tension pulley of a chain or belt, or as a mechanism that allows linear movement in only one direction. It can be used in various fields.
従来の技術
一般に任意の機械の一方向のみの動きを許す機
構として代表的なものにラチエツトがあるが、こ
れを無段階的に行わしめるものとして、ローラや
スプラグ等を使用したワンウエイクラツチがあ
る。これらのワンウエイクラツチはほとんどが回
転方向に対して機能を発揮するようにしたもので
あり、直線方向のみのワンウエイクラツチはほと
んどない。BACKGROUND TECHNOLOGY Generally speaking, a ratchet is a typical mechanism that allows any machine to move in only one direction, but a one-way clutch that uses rollers, sprags, etc. is a mechanism that allows this to occur steplessly. Most of these one-way clutches function in the rotational direction, and there are very few one-way clutches that function only in the linear direction.
発明が解決しようとする問題点
しかし実際の機械の作動は、回転方向だけでな
く直線方向の動きもある。このためワンウエイク
ラツチにも直線方向に対して機能を発揮するもの
が必要になる。そこで従来は回転方向クラツチの
作動方向を、ロツドやカムを用いて直線方向に変
更して用いているが、これでは構造が複雑になる
と同時に、装置全体が大型化するといつた欠点が
あつた。また、従来のころを用いたワンウエイク
ラツチは、ローラとの接触面をカム面にする必要
があり、この加工に手間がかかるといつた欠点も
あつた。Problems to be Solved by the Invention However, actual machines operate not only in the rotational direction but also in the linear direction. For this reason, a one-way clutch that functions in a straight direction is also required. Conventionally, therefore, the operating direction of the rotational clutch has been changed to the linear direction using a rod or cam, but this has the drawbacks of complicating the structure and increasing the size of the entire device. In addition, conventional one-way clutches using rollers had the disadvantage that the contact surface with the rollers had to be a cam surface, which was time-consuming.
そこで、この発明は、ローラを用いて直線方向
に使用する直線方向ワンウエイクラツチを構成す
ることにより、回転方向ワンウエイクラツチの作
動方向をロツドやカムを用いて直接方向に変更し
たりすることなく、機械の直線方向のいずれか一
方向への動きを規制するとともに、ローラとの接
触面を円弧面とすることにより、ワンウエイクラ
ツチの製作を容易にするものである。 Therefore, the present invention uses rollers to configure a linear one-way clutch that is used in a linear direction, thereby allowing the machine to operate the one-way clutch without changing the operating direction of the rotational one-way clutch to the direct direction using a rod or cam. The one-way clutch can be manufactured easily by restricting the movement of the clutch in any one of the linear directions, and by making the contact surface with the roller an arcuate surface.
問題点を解決するための手段
この発明のワンウエイクラツチは、円筒状の内
周面を有する外方部材と、外方部材の内部に同心
に挿入された保持器と、外方部材および保持器の
軸心に直交して貫通する軸と、この軸の直径方向
両側で外方部材の内周面と軸の外周面との間に保
持器によつて転動可能に保持された一対のローラ
と、保持器に収納されローラを押圧する一対の弾
性部材とからなり、外方部材の内周面と軸の外周
面との間に形成される楔状空隙の狭い方へ向けて
ローラを弾性部材により押圧させて外方部材の軸
心から一定量偏位した位置にローラを保持するよ
うにしたものである。Means for Solving the Problems The one-way clutch of the present invention includes an outer member having a cylindrical inner circumferential surface, a retainer inserted concentrically into the outer member, and a retainer between the outer member and the retainer. A shaft passing through the shaft perpendicularly to the shaft center, and a pair of rollers rotatably held by a retainer between the inner circumferential surface of the outer member and the outer circumferential surface of the shaft on both sides of the shaft in the diametrical direction. , a pair of elastic members that are housed in a cage and press the rollers, and the elastic members move the rollers toward the narrower side of the wedge-shaped gap formed between the inner circumferential surface of the outer member and the outer circumferential surface of the shaft. The roller is pressed to hold the roller at a position offset by a certain amount from the axis of the outer member.
実施例
第１図及び第２図はこの発明の一実施例たる直
線方向ワンウエイクラツチを示す。図中１は円筒
状の内周面を有する外方部材、２，２は外方部材
１に設けた軸心に直交する貫通穴である。３は外
方部材１内に同心に挿入された円筒状をした保持
器であり、外方部材１の貫通穴２，２とそれぞれ
対応する位置には、第３図に示すように貫通穴
４，４が設けてある。保持器３の貫通穴４，４と
略直交する位置には、後述するローラ９，９を保
持するための保持部５，５が設けてあり、保持部
５，５の各一側部には、ローラ９，９を所定方向
に押圧するためのスプリング６，６を収納するた
めの収納部７，７が設けてある。なお、保持器３
は第３図のような一体形円筒状以外に、別体の半
円筒状のものを合わせる形式でも良い。８は外方
部材１及び保持器３に夫々設けた貫通穴２，２，
４，４に挿通される軸であり、この軸８の上下面
にはローラ９，９と当接する平面部８ａ，８ａが
設けてあり、軸８の円弧状部８ｂ，８ｂは、外方
部材１に設けた第１の貫通穴２，２の内周面と接
触してスライド自在に案内支持されている。９，
９は保持器３の保持部５，５に保持された状態
で、外方部材１及び保持器３を貫通している軸８
の両平面部８ａ，８ａと、外方部材１の内周面１
ａとの間に形成される楔状空隙内に挿入されるロ
ーラである。ローラ９，９は、保持器３の収納部
５，５に収納されたスプリング６，６によつて押
圧して、通常はローラ９，９の中心Ｐが外方部材
１の軸心と直交する断面における２等分線Ｙ−Ｙ
より片側に所定距離ｅだけ離れた位置（図中左
側）に保持しておく。Embodiment FIGS. 1 and 2 show a linear one-way clutch according to an embodiment of the present invention. In the figure, 1 is an outer member having a cylindrical inner peripheral surface, and 2, 2 are through holes provided in the outer member 1 and perpendicular to the axis thereof. Reference numeral 3 denotes a cylindrical retainer inserted concentrically into the outer member 1, and through holes 4 are provided at positions corresponding to the through holes 2, 2 of the outer member 1, respectively, as shown in FIG. , 4 are provided. Holding parts 5, 5 for holding rollers 9, 9, which will be described later, are provided at positions substantially perpendicular to the through holes 4, 4 of the retainer 3, and one side of each of the holding parts 5, 5 has a , storage portions 7, 7 for storing springs 6, 6 for pressing the rollers 9, 9 in a predetermined direction are provided. In addition, cage 3
In addition to the integral cylindrical shape shown in FIG. 3, a separate semi-cylindrical shape may also be used. Reference numeral 8 denotes through holes 2, 2, and 2 provided in the outer member 1 and the retainer 3, respectively.
4, 4, the upper and lower surfaces of this shaft 8 are provided with flat parts 8a, 8a that come into contact with rollers 9, 9, and the arcuate parts 8b, 8b of the shaft 8 are arranged on the upper and lower surfaces of the shaft 8. It is slidably guided and supported in contact with the inner peripheral surfaces of the first through holes 2, 2 provided in the first through holes 2, 2. 9,
Reference numeral 9 denotes a shaft 8 that passes through the outer member 1 and the retainer 3 while being held by the retainers 5, 5 of the retainer 3.
and the inner circumferential surface 1 of the outer member 1.
This roller is inserted into the wedge-shaped gap formed between the roller and the roller. The rollers 9, 9 are pressed by springs 6, 6 stored in the storage parts 5, 5 of the retainer 3, so that the center P of the rollers 9, 9 is normally perpendicular to the axis of the outer member 1. Bisector Y-Y in cross section
It is held at a position a predetermined distance e away to one side (on the left side in the figure).
上記構成において、軸８を図中右方にスライド
させると、ローラ９，９が外方部材１の内周面１
ａと軸８の平面部８ａ，８ａとの間で回転するた
め、軸８はスムーズに図中右方にスライドでき
る。一方、軸８を図中左方にスライドさせようと
すると、スプリング６，６の作用により、中心Ｐ
が保持器３の軸心と直交する断面に於ける二等分
線Ｙ−Ｙより距離ｅだけ図中左方に偏位している
ローラ９，９が、さらに左方に、すなわち楔状空
隙の狭い方へ移動しようとするため、ローラ９，
９の外周面が、外方部材１の内周面１ａと、軸８
の平面部８ａ，８ａとに圧接して楔の作用をし、
軸８が図中左方に移動するのを阻止する。従つて
外方部材１及び保持器３を貫通する軸８は、図中
右方にしか移動できない。 In the above configuration, when the shaft 8 is slid to the right in the figure, the rollers 9, 9 are moved to the inner circumferential surface of the outer member 1.
Since the shaft 8 rotates between the shaft 8a and the flat portions 8a, 8a of the shaft 8, the shaft 8 can smoothly slide to the right in the figure. On the other hand, when trying to slide the shaft 8 to the left in the figure, the action of the springs 6 causes the center P
The rollers 9, 9, which are offset to the left in the figure by a distance e from the bisector Y-Y in the cross section perpendicular to the axis of the cage 3, move further to the left, that is, in the wedge-shaped gap. Since it tries to move to the narrow side, roller 9,
The outer peripheral surface of 9 is connected to the inner peripheral surface 1a of the outer member 1 and the shaft 8.
It presses against the flat parts 8a, 8a of the plate to act as a wedge,
This prevents the shaft 8 from moving to the left in the figure. Therefore, the shaft 8 passing through the outer member 1 and the retainer 3 can only move to the right in the figure.
なお、上記したワンウエイクラツチに用いる外
方部材１には、例えばNU形円筒ころ軸受の外輪
あるいはシエル形ニードル軸受の外輪等を使用す
ることができる。特にNU形円筒ころ軸受の外輪
のように、両鍔形のものを用いれば、ローラとの
干渉により保持器が外方部材から脱落しない構造
を取ることもできる。 The outer member 1 used in the one-way clutch described above may be, for example, the outer ring of an NU-type cylindrical roller bearing or the outer ring of a shell-type needle bearing. In particular, if a double-flange type outer ring is used, such as the outer ring of an NU type cylindrical roller bearing, a structure can be created in which the cage does not fall off from the outer member due to interference with the rollers.
当該ワンウエイクラツチの使用個所としては、
例えば第４図に示すように、自動車エンジンのタ
イミングチエーン、タイミングベルトＡの使用中
における緩みを自動的に取り、規定のテンシヨン
を維持する自動調圧テンシヨンプーリＢ等に装着
する。そしてこの場合は、自動調圧テンシヨンプ
ーリＢのプーリＣを支持するシヤフトＤがスプリ
ングＥの弾性力に抗して図中上方に移動するのを
防止するのに用いる。 The one-way clutch is used as follows:
For example, as shown in FIG. 4, the timing chain or timing belt A of an automobile engine is attached to an automatic pressure regulating tension pulley B, etc., which automatically takes up slack during use and maintains a specified tension. In this case, it is used to prevent the shaft D supporting the pulley C of the automatic pressure adjustment tension pulley B from moving upward in the figure against the elastic force of the spring E.
発明の効果
上記した如くローラを用いたワンウエイクラツ
チによつて、直線方向に対して機能を発揮するよ
うにすれば直線方向の一方向の動きを規制する
時、従来のように回転方向ワンウエイクラツチの
作動方向をロツドやカムを用いて直線方向に変更
する必要がなくなるため、ワンウエイクラツチの
構造を簡略化できる。しかもこの発明のワンウエ
イクラツチは、外方部材の円筒状の内周面をその
まま楔面として利用でき、製造が極めて簡易であ
る。Effects of the Invention As described above, if the one-way clutch using rollers is made to function in the linear direction, when one-way movement in the linear direction is restricted, the one-way clutch in the rotational direction cannot be used as in the conventional one-way clutch. Since there is no need to change the operating direction to a linear direction using a rod or cam, the structure of the one-way clutch can be simplified. Moreover, the one-way clutch of the present invention can use the cylindrical inner circumferential surface of the outer member as a wedge surface, and is extremely simple to manufacture.
第１図は本発明の一実施例たるワンウエイクラ
ツチの正面図、第２図は第１図−線断面図、
第３図は保持器の斜視図、第４図はワンウエイク
ラツチの使用例を示す略図である。
１……外方部材、１ａ……内周面、３……保持
器、６……スプリング、８……軸、９……ロー
ラ。
Fig. 1 is a front view of a one-way clutch which is an embodiment of the present invention, Fig. 2 is a sectional view taken along the line of Fig. 1,
FIG. 3 is a perspective view of the retainer, and FIG. 4 is a schematic diagram showing an example of use of the one-way clutch. DESCRIPTION OF SYMBOLS 1...Outer member, 1a...Inner peripheral surface, 3...Cage, 6...Spring, 8...Shaft, 9...Roller.
Claims (1)
材の内部に同心に挿入された保持器と、外方部材
および保持器の軸心に直交して貫通する軸と、こ
の軸の直径方向両側で外方部材の内周面と軸の外
周面との間に保持器によつて転動可能に保持され
た一対のローラと、保持器に収納されローラを押
圧する一対の弾性部材とからなり、外方部材の内
周面と軸の外周面との間に形成される楔状空隙の
狭い方へ向けてローラを弾性部材により押圧させ
て外方部材の軸心から一定量偏位した位置にロー
ラを保持するようにしたことを特徴とするワンウ
エイクラツチ。1. An outer member having a cylindrical inner circumferential surface, a retainer inserted concentrically into the outer member, a shaft penetrating perpendicularly to the axes of the outer member and the retainer, and a shaft of this shaft. A pair of rollers that are rotatably held by a cage between the inner peripheral surface of the outer member and the outer peripheral surface of the shaft on both sides in the diametrical direction, and a pair of elastic members that are housed in the cage and press the rollers. The roller is pushed by an elastic member toward the narrower side of the wedge-shaped gap formed between the inner circumferential surface of the outer member and the outer circumferential surface of the shaft, and the roller is deflected by a certain amount from the axis of the outer member. A one-way clutch that is characterized by holding the roller in a fixed position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58133983A JPS6026823A (en) | 1983-07-21 | 1983-07-21 | One-way clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58133983A JPS6026823A (en) | 1983-07-21 | 1983-07-21 | One-way clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6026823A JPS6026823A (en) | 1985-02-09 |
| JPS6334325B2 true JPS6334325B2 (en) | 1988-07-08 |
Family
ID=15117642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58133983A Granted JPS6026823A (en) | 1983-07-21 | 1983-07-21 | One-way clutch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6026823A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5385224B2 (en) * | 2009-10-20 | 2014-01-08 | 樫山 幸治 | One way clutch |
| CN102102715B (en) * | 2010-12-15 | 2013-05-01 | 广西柳工机械股份有限公司 | Overrunning clutch isolating ring |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4915494U (en) * | 1972-05-15 | 1974-02-08 |
-
1983
- 1983-07-21 JP JP58133983A patent/JPS6026823A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4915494U (en) * | 1972-05-15 | 1974-02-08 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6026823A (en) | 1985-02-09 |
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