JP6297390B2 - One-way clutch - Google Patents

One-way clutch Download PDF

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JP6297390B2
JP6297390B2 JP2014077902A JP2014077902A JP6297390B2 JP 6297390 B2 JP6297390 B2 JP 6297390B2 JP 2014077902 A JP2014077902 A JP 2014077902A JP 2014077902 A JP2014077902 A JP 2014077902A JP 6297390 B2 JP6297390 B2 JP 6297390B2
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cage
rollers
way clutch
roller
pitch circle
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JP2015200336A (en
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将人 辻橋
将人 辻橋
貞経 風間
貞経 風間
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NTN Corp
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本発明は、ころを係合子として用いた一方向クラッチに関する。   The present invention relates to a one-way clutch using a roller as an engagement element.

一方向クラッチは、２つの回転部材の間で一方向の回転力のみを伝達するものであり、ころを係合子として用いたもの（以下、ころ式一方向クラッチと称する。）が従来から広く使用されている。このころ式一方向クラッチのうち、一般的な保持器を有する外輪カムタイプのものの装着状態を図７に示す。この一方向クラッチは、外輪（環状部材）５１の内周に一定方向に傾斜する複数のカム面５１ａを設け、各カム面５１ａと対向する位置にころ５２を配し、これらの各ころ５２を保持器５３で保持して、保持器５３に取り付けたばね等の弾性体５４でカム面５１ａと係合する方向に付勢するようにしたものであり、ころ５２を挟んでカム面５１ａと対向する円筒面を有する回転軸Ａの外周に装着される。   One-way clutches transmit only one-way rotational force between two rotating members, and those using rollers as engaging elements (hereinafter referred to as roller-type one-way clutches) have been widely used. Has been. FIG. 7 shows a mounted state of an outer ring cam type having a general cage among the roller type one-way clutches. This one-way clutch is provided with a plurality of cam surfaces 51a inclined in a fixed direction on the inner periphery of an outer ring (annular member) 51, and rollers 52 are arranged at positions facing the respective cam surfaces 51a. It is held by the cage 53 and is urged in a direction to engage with the cam surface 51a by an elastic body 54 such as a spring attached to the cage 53, and faces the cam surface 51a with the rollers 52 in between. It is mounted on the outer periphery of the rotary shaft A having a cylindrical surface.

前記保持器５３は、一対の環状側部５３ａとこれらの両環状側部５３ａを連結する複数の柱部５３ｂとからなり、両環状側部５３ａと柱部５３ｂとで形成された複数のポケット５５にころ５２を１個ずつ収容し、各柱部５３ｂに前記弾性体５４が取り付けられるようになっている。また、その柱部５３ｂは、保持器５３径方向の断面が内周側で拡がるように形成され、ころ５２の保持器５３内周側からの脱落を防止する役割も果たしている。   The cage 53 includes a pair of annular side portions 53a and a plurality of column portions 53b that connect both the annular side portions 53a, and a plurality of pockets 55 formed by both the annular side portions 53a and the column portions 53b. One roller 52 is accommodated one by one, and the elastic body 54 is attached to each column portion 53b. Further, the column portion 53b is formed so that a cross section in the radial direction of the cage 53 expands on the inner peripheral side, and also plays a role of preventing the rollers 52 from falling off from the inner peripheral side of the cage 53.

そして、外輪５１が図７における反時計回りに回転するか、回転軸Ａが図７における時計回りに回転すると、各ころ５２が外輪５１のカム面５１ａおよび回転軸Ａの円筒面と係合してロックし、回転力が伝達される。   When the outer ring 51 rotates counterclockwise in FIG. 7 or the rotating shaft A rotates clockwise in FIG. 7, each roller 52 engages with the cam surface 51a of the outer ring 51 and the cylindrical surface of the rotating shaft A. And the rotational force is transmitted.

ところで、このような保持器付きのころ式一方向クラッチでは、保持器５３の柱部５３ｂと弾性体５４がころ５２どうしの間でころ５２のピッチ円Ｃ上に配されており、その保持器５３の柱部５３ｂの太さ（径方向断面の幅）は加工性および強度を考慮した下限値よりも太くする必要があるので、組み込まれるころ５２の本数は設計上の上限値となっていることが多い。したがって、通常は、クラッチ全体の径方向寸法を大型化させなければ、ころ５２の本数を増やしてトルク容量を増大させることができない。   By the way, in such a roller type one-way clutch with a cage, the column portion 53b of the cage 53 and the elastic body 54 are arranged on the pitch circle C of the roller 52 between the rollers 52, and the cage Since the thickness (the width of the radial cross section) of the column portion 53 of 53 needs to be larger than the lower limit value in consideration of workability and strength, the number of rollers 52 to be incorporated is the upper limit value in design. There are many cases. Therefore, normally, the torque capacity cannot be increased by increasing the number of rollers 52 unless the radial dimension of the entire clutch is increased.

一方、大きなトルク容量を得るために、ころを互いに当接させて（総ころ状態で）配することにより、組み込み可能なころの本数を多くした総ころ式の一方向クラッチが知られている。例えば、特許文献１で提案されている総ころ式の一方向クラッチは、図８に示すように、外輪５６の内周に設けられた各カム面５６ａと対向する位置に、複数のころ５７が総ころ状態で配され、外輪５６内周の溝５６ｂに一端を係止された一つのばね５８によりカム面５６ａと係合する方向に付勢されるようになっている。したがって、同じサイズの保持器付きのころ式一方向クラッチに比べて、各ころの間に保持器や弾性体がない分、組み込まれるころの本数が多くなり、大きなトルク容量が得られる。   On the other hand, in order to obtain a large torque capacity, there is known a full-roller type one-way clutch in which the rollers are arranged in contact with each other (in a full-roller state) to increase the number of rollers that can be incorporated. For example, as shown in FIG. 8, the full-roller type one-way clutch proposed in Patent Document 1 has a plurality of rollers 57 at positions facing each cam surface 56 a provided on the inner periphery of the outer ring 56. It is arranged in a full roller state, and is biased in a direction to engage with the cam surface 56a by a single spring 58 having one end locked in a groove 56b on the inner periphery of the outer ring 56. Therefore, compared to a roller type one-way clutch with a cage of the same size, the number of rollers to be incorporated is increased because there is no cage or elastic body between the rollers, and a large torque capacity can be obtained.

特開２００３−５６６０１号公報JP 2003-56601 A

しかしながら、上述した総ころ式の一方向クラッチは、ころを保持する保持器を有していないため、搬送中や回転軸への装着時にころの脱落を防止する手段が別途必要となり、通常、回転軸とのトルク伝達手段を有する内輪を備えた仕様としたり、組立時に回転軸とほぼ同じ外径のダミー内輪を嵌め込んだりしている（内輪カムタイプのものでは、外輪付き仕様とするか、ダミー外輪を嵌め込む）。このため、保持器付きのころ式一方向クラッチに比べて、組立や装着に手間がかかる。また、ころどうしを当接させているため、空転させるのに必要なトルク（空転トルク）がころどうしの摩擦によって大きくなるという問題もある。   However, the above-mentioned full-roller type one-way clutch does not have a retainer for holding the rollers, and therefore requires an additional means for preventing the rollers from falling off during transportation or mounting on the rotating shaft. Specifications include an inner ring having torque transmission means with the shaft, or a dummy inner ring having the same outer diameter as the rotating shaft is fitted during assembly (in the case of an inner ring cam type, a specification with an outer ring or a dummy Fit the outer ring). For this reason, as compared with a roller type one-way clutch with a cage, it takes time to assemble and mount. Further, since the rollers are brought into contact with each other, there is a problem that a torque (idling torque) required for idling increases due to friction between the rollers.

そこで、本発明は、保持器付きのころ式一方向クラッチにおいて、組み込まれるころの本数を増やして、大きなトルク容量が得られるようにすることを課題とする。   Therefore, an object of the present invention is to increase the number of rollers to be incorporated in a roller type one-way clutch with a cage so as to obtain a large torque capacity.

上記の課題を解決するために、本発明は、内周または外周に一定方向に傾斜する複数のカム面が設けられた環状部材と、前記各カム面と対向する位置に配された複数のころと、一対の環状側部とこれらの両環状側部を連結する複数の柱部とで形成されたポケットに前記各ころを収容する保持器と、前記保持器に取り付けられ、前記ころを前記カム面と係合する方向に付勢する複数の弾性体とを備えた一方向クラッチにおいて、前記保持器の柱部および前記弾性体を、前記ころのピッチ円から外れた位置に配置した構成を採用した。   In order to solve the above-described problems, the present invention provides an annular member provided with a plurality of cam surfaces inclined in a fixed direction on an inner periphery or an outer periphery, and a plurality of rollers disposed at positions facing the respective cam surfaces. A cage that accommodates the rollers in a pocket formed by a pair of annular side portions and a plurality of column portions that connect the annular side portions; In a one-way clutch provided with a plurality of elastic bodies biased in a direction to engage with a surface, a configuration in which the pillar portion of the cage and the elastic body are arranged at positions away from the pitch circle of the rollers is adopted. did.

上記の構成によれば、ころのピッチ円上に保持器の柱部および弾性体がないので、その保持器および弾性体の設計に合わせて、ころどうしの間隔（および環状部材のカム面どうしの間隔）を狭くすることにより、組み込まれるころの本数を増やし、トルク容量の増大を図ることができる。   According to the above configuration, since there is no retainer column and elastic body on the roller pitch circle, the distance between the rollers (and the cam surfaces of the annular members) is adjusted according to the design of the retainer and the elastic body. By narrowing the (interval), the number of rollers to be incorporated can be increased, and the torque capacity can be increased.

ここで、前記保持器の柱部を、その径方向断面の幅が前記ころのピッチ円に近づくほど狭くなる三角柱状に形成すれば、ころどうしの間隔を狭くしやすくなるので、ころ本数を増やしてトルク容量を増大させることが容易になる。   Here, if the pillar portion of the cage is formed in a triangular prism shape whose width in the radial cross section becomes narrower as it approaches the pitch circle of the roller, the interval between the rollers can be easily reduced, so the number of rollers is increased. Thus, it becomes easy to increase the torque capacity.

また、前記保持器の柱部を、前記ころのピッチ円を挟んで前記環状部材のカム面と径方向で対向する側に配置すれば、保持器の柱部で搬送中や装着時のころの脱落を防止する構造とすることが可能になる。   Further, if the pillar portion of the cage is arranged on the side facing the cam surface of the annular member in the radial direction across the pitch circle of the roller, the roller portion of the cage during transportation or mounting is arranged. It becomes possible to make it the structure which prevents drop-off.

また、前記弾性体としては、板ばねを採用することが望ましい。弾性体には種々のものがあるが、一般に薄肉鋼板で形成される板ばねを用いれば、保持器周方向の寸法を小さくできるので、ころどうしの間隔を狭くするのに有利になり、トルク容量を増大させやすいからである。   Moreover, it is desirable to employ a leaf spring as the elastic body. There are various types of elastic bodies. Generally, if a leaf spring formed of a thin steel plate is used, the size in the circumferential direction of the cage can be reduced, which is advantageous in reducing the interval between the rollers, and the torque capacity. It is because it is easy to increase.

本発明の一方向クラッチは、上述したように、保持器の柱部および弾性体をころのピッチ円から外れた位置に配置したものであるから、同じサイズの従来の保持器付きのものよりも多くのころを組み込むことができ、大きなトルク容量が得られる。また、総ころ式のものに比べると、組立や装着に手間がかからないし、空転トルクも低く抑えられる。   As described above, the one-way clutch of the present invention has the cage column and the elastic body arranged at positions deviated from the pitch circle of the rollers, so that the one-way clutch of the present invention is more than the conventional one with the same cage. Many rollers can be incorporated, and a large torque capacity can be obtained. Further, compared to a full-roller type, it takes less time to assemble and install, and the idling torque can be kept low.

実施形態の一方向クラッチの要部の正面断面図Front sectional view of an essential part of the one-way clutch of the embodiment 図１のII−II線に沿った断面図Sectional view along the line II-II in FIG. 図２に対応して保持器および板ばねの第１の変形例を示す断面図Sectional drawing which shows the 1st modification of a holder | retainer and a leaf | plate spring corresponding to FIG. 図２に対応して保持器および板ばねの第２の変形例を示す断面図Sectional drawing which shows the 2nd modification of a holder | retainer and a leaf | plate spring corresponding to FIG. 図２に対応して保持器および板ばねの第３の変形例を示す断面図Sectional drawing which shows the 3rd modification of a holder | retainer and a leaf | plate spring corresponding to FIG. 図５の保持器および板ばねの分解斜視図5 is an exploded perspective view of the cage and leaf spring of FIG. 従来の一方向クラッチの図２に対応する断面図Sectional view corresponding to FIG. 2 of a conventional one-way clutch 従来の別の一方向クラッチの図２に対応する断面図Sectional drawing corresponding to FIG. 2 of another conventional one-way clutch

以下、図１乃至図６に基づき、本発明の実施形態を説明する。この一方向クラッチは、図１および図２に示すように、外輪カムタイプのころ式のもので、内周に一定方向に傾斜する複数のカム面１ａが設けられた外輪（環状部材）１と、その外輪１の各カム面１ａと対向する位置に配された複数のころ２と、各ころ２を保持する保持器３と、ころ２を外輪１のカム面１ａと係合する方向に付勢する複数の板ばね（弾性体）４と、外輪１の内周に嵌め込まれ、保持器３を軸方向に抜け止めする一対の蓋５とを備えており、ころ２を挟んでカム面１ａと対向する円筒面を有する回転軸Ａの外周に装着され、回転軸Ａの外周の溝に嵌め込まれた止め輪６で抜け止めされている。その外輪１の外周には、トルク伝達手段として軸方向に延びる突条１ｂが全周にわたって形成されている。   Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 6. As shown in FIGS. 1 and 2, the one-way clutch is an outer ring cam type roller type, and includes an outer ring (annular member) 1 provided with a plurality of cam surfaces 1a inclined in a fixed direction on the inner periphery, A plurality of rollers 2 arranged at positions facing each cam surface 1a of the outer ring 1, a cage 3 for holding each roller 2, and a biasing force in a direction in which the rollers 2 are engaged with the cam surface 1a of the outer ring 1. A plurality of leaf springs (elastic bodies) 4 and a pair of lids 5 fitted on the inner periphery of the outer ring 1 to prevent the retainer 3 from coming off in the axial direction. It is attached to the outer periphery of the rotating shaft A having an opposing cylindrical surface, and is prevented from coming off by a retaining ring 6 fitted in a groove on the outer periphery of the rotating shaft A. On the outer periphery of the outer ring 1, a ridge 1b extending in the axial direction as a torque transmitting means is formed over the entire periphery.

前記保持器３は、一対の環状側部３ａとこれらの両環状側部３ａを連結する複数の柱部３ｂとからなり、両環状側部３ａと柱部３ｂとで形成された複数のポケット７にころ２を１個ずつ収容するようになっている。各柱部３ｂは保持器３径方向の断面の幅がころ２のピッチ円Ｃに近づくほど狭くなる三角柱状に形成されており、これらの各柱部３ｂに前記板ばね４が取り付けられている。なお、保持器３の材質は金属でも樹脂でもよい。   The cage 3 includes a pair of annular side portions 3a and a plurality of column portions 3b connecting the both annular side portions 3a, and a plurality of pockets 7 formed by both the annular side portions 3a and the column portions 3b. The roller 2 is accommodated one by one. Each column portion 3b is formed in a triangular column shape that becomes narrower as the width of the cross section in the radial direction of the cage 3 approaches the pitch circle C of the roller 2, and the plate spring 4 is attached to each column portion 3b. . The material of the cage 3 may be metal or resin.

前記板ばね４は、薄肉鋼板を保持器３の柱部３ｂの外径側形状に沿うように折り曲げ加工し、保持器３の柱部３ｂに取り付けたときにころ２と対向する面の軸方向両端部をころ２の側へ切り起こしたもので、その切り起こされた部分でころ２に当接している。   The leaf spring 4 is formed by bending a thin steel plate so as to follow the outer diameter side shape of the column portion 3b of the cage 3, and the axial direction of the surface facing the roller 2 when attached to the column portion 3b of the cage 3 Both ends are cut and raised toward the roller 2, and the cut and raised portions are in contact with the roller 2.

前記保持器３の柱部３ｂおよび板ばね４は、ころ２のピッチ円Ｃを挟んで外輪１のカム面１ａと径方向で対向する側で、ころ２のピッチ円Ｃから外れた位置に配置されている。そして、板ばね４を保持器３の柱部３ｂに取り付けた状態で、隣り合う板ばね４どうしの最小隙間がころ２の直径よりも狭くなり、搬送中や装着時にころ２を保持器３の内周側から脱落させないようになっている。   The column portion 3b and the leaf spring 4 of the cage 3 are arranged at positions deviating from the pitch circle C of the roller 2 on the side facing the cam surface 1a of the outer ring 1 in the radial direction across the pitch circle C of the roller 2. Has been. And in the state which attached the leaf | plate spring 4 to the pillar part 3b of the holder | retainer 3, the minimum clearance gap between adjacent leaf | plate springs 4 becomes narrower than the diameter of the roller 2, and the roller 2 of the holder | retainer 3 is conveyed during conveyance or a mounting | wearing. It is designed not to fall off from the inner periphery.

そして、外輪１が図２における反時計回りに回転するか、回転軸Ａが図２における時計回りに回転すると、各ころ２が外輪１のカム面１ａおよび回転軸Ａの円筒面と係合してロックし、回転力が伝達される。   When the outer ring 1 rotates counterclockwise in FIG. 2 or the rotating shaft A rotates clockwise in FIG. 2, each roller 2 engages with the cam surface 1a of the outer ring 1 and the cylindrical surface of the rotating shaft A. And the rotational force is transmitted.

この一方向クラッチは、上述したように、保持器３の柱部３ｂおよび板ばね４をころ２のピッチ円Ｃから外れた位置に配置しているうえ、保持器柱部３ｂを断面幅がころピッチ円Ｃに近づくほど狭くなる三角柱状に形成しているので、その保持器３および板ばね４の設計に合わせて、ころ２どうしの間隔（および外輪１のカム面１ａどうしの間隔）を狭くすることにより、同じサイズの従来の保持器付きのものよりも多くのころを組み込んで、大きなトルク容量を得ることができる。   In this one-way clutch, as described above, the column portion 3b and the leaf spring 4 of the cage 3 are arranged at positions deviated from the pitch circle C of the roller 2, and the cage column portion 3b has a cross-sectional width. Since it is formed in a triangular prism shape that becomes narrower as it approaches the pitch circle C, the distance between the rollers 2 (and the distance between the cam surfaces 1a of the outer ring 1) is made narrower in accordance with the design of the cage 3 and the leaf spring 4. By doing so, a larger torque capacity can be obtained by incorporating more rollers than those with a conventional cage of the same size.

また、保持器３の柱部３ｂと板ばね４がころ２の保持器３内周側からの脱落を防止する役割も果たしているので、ころ脱落防止手段のない総ころ式のものに比べると組立や装着に手間がかからないし、ころ２どうしが当接しないので、総ころ式のものよりも空転トルクを低く抑えられる。   Further, since the column portion 3b and the leaf spring 4 of the cage 3 also serve to prevent the rollers 2 from falling off from the inner peripheral side of the cage 3, the assembly is made in comparison with a full-roller type without roller falling-off prevention means. Since it does not take time and effort to install, and the rollers 2 do not come into contact with each other, the idling torque can be suppressed lower than that of the full roller type.

図３乃至図６は、保持器および板ばねの変形例を示す。このうち、図３に示す例では、ころ２のピッチ円Ｃよりも外径側に、図１、図２の例と逆向きに保持器柱部３ｂ’および板ばね４’を配している。また、図４に示す例では、図３の例と同様に保持器柱部３ｂ’および板ばね４’を配するとともに、ころピッチ円Ｃよりも内周側に図１、図２の例と同じ柱部３ｂを設けて、ころ２の保持器３の内周側からの脱落を防止するとともに、保持器３の強度の向上を図っている。   3 to 6 show modifications of the cage and the leaf spring. Among these, in the example shown in FIG. 3, the retainer column part 3 b ′ and the leaf spring 4 ′ are arranged on the outer diameter side of the pitch circle C of the roller 2 in the direction opposite to the example of FIGS. 1 and 2. . Further, in the example shown in FIG. 4, similarly to the example of FIG. 3, the retainer column part 3 b ′ and the leaf spring 4 ′ are arranged, and the examples of FIGS. The same column portion 3b is provided to prevent the roller 2 from falling off from the inner peripheral side of the cage 3, and to improve the strength of the cage 3.

一方、図５および図６は、図３、図４の例の外径側の保持器柱部３ｂ’を設けず、板ばね４’を保持器３の両側の環状側部３ａに取り付けた例を示す。すなわち、この例では、保持器３のころピッチ円Ｃよりも内周側に図１、図２の例と同じ柱部３ｂを設けるとともに、板ばね４’のころ２との対向面を除く部位の両端を延長して、その両方の延長部をそれぞれころピッチ円Ｃよりも外周側で保持器３の両側の環状側部３ａに設けた取付溝３ｃに嵌合固定している。   On the other hand, FIGS. 5 and 6 show an example in which the retainer column part 3b ′ on the outer diameter side in the example of FIGS. 3 and 4 is not provided and the leaf spring 4 ′ is attached to the annular side part 3a on both sides of the retainer 3. Indicates. That is, in this example, the same pillar portion 3b as that of the example of FIGS. 1 and 2 is provided on the inner peripheral side of the roller pitch circle C of the cage 3, and the portion excluding the surface facing the roller 2 of the leaf spring 4 ′. The both ends are fitted and fixed in mounting grooves 3c provided on the annular side portions 3a on both sides of the cage 3 on the outer peripheral side of the roller pitch circle C.

なお、上述した実施形態における板ばねは他の弾性体に代えることもできるが、薄肉鋼板で形成された板ばねを用いた方が、保持器周方向の寸法を小さくでき、ころどうしの間隔を狭くしてトルク容量を増大させやすいので好ましい。   In addition, although the leaf | plate spring in embodiment mentioned above can also be replaced with another elastic body, the direction using the leaf | plate spring formed with the thin steel plate can make the dimension of a holder circumferential direction small, and can maintain the space | interval of rollers. It is preferable because the torque capacity is easily increased by narrowing.

また、本発明は、実施形態のような外輪カムタイプのころ式一方向クラッチに限らず、外周に一定方向に傾斜する複数のカム面が設けられた内輪（環状部材）を有する内輪カムタイプのころ式一方向クラッチにも、もちろん適用できる。   Further, the present invention is not limited to the outer ring cam type roller type one-way clutch as in the embodiment, and an inner ring cam type roller type having an inner ring (annular member) provided with a plurality of cam surfaces inclined in a fixed direction on the outer periphery. Of course, it can also be applied to a one-way clutch.

さらに、本発明を、保持器の一つのポケットに複数のころを互いに当接させて配したころ式一方向クラッチに適用すれば、実施形態のものに比べて、空転トルクはやや大きくなるが、一層多くのころを組み込めるようになり、より大きなトルク容量が得られるようになる。   Furthermore, if the present invention is applied to a roller-type one-way clutch in which a plurality of rollers are placed in contact with each other in one pocket of the cage, the idling torque is slightly larger than that of the embodiment, More rollers can be incorporated, and a larger torque capacity can be obtained.

１ 外輪
１ａ カム面
２ ころ
３ 保持器
３ａ 環状側部
３ｂ、３ｂ’ 柱部
３ｃ 取付溝
４、４’ 板ばね（弾性体）
７ ポケット
Ａ 回転軸
Ｃ ピッチ円 DESCRIPTION OF SYMBOLS 1 Outer ring 1a Cam surface 2 Roller 3 Cage 3a Annular side part 3b, 3b 'Column part 3c Mounting groove 4, 4' Leaf spring (elastic body)
7 Pocket A Rotation axis C Pitch circle

Claims (4)

内周または外周に一定方向に傾斜する複数のカム面が設けられた環状部材と、前記各カム面と対向する位置に配された複数のころと、一対の環状側部とこれらの両環状側部を連結する複数の柱部とで形成されたポケットに前記各ころを収容する保持器と、前記保持器に取り付けられ、前記ころを前記カム面と係合する方向に付勢する複数の弾性体とを備えた一方向クラッチにおいて、
前記保持器の柱部および前記弾性体を、前記ころのピッチ円から外れた位置に配置したことを特徴とする一方向クラッチ。 An annular member provided with a plurality of cam surfaces inclined in a fixed direction on the inner periphery or outer periphery, a plurality of rollers disposed at positions facing the respective cam surfaces, a pair of annular side portions, and both the annular sides A cage that accommodates the rollers in a pocket formed by a plurality of pillars connecting the portions, and a plurality of elasticity that is attached to the cage and urges the rollers in a direction to engage the cam surface. In a one-way clutch with a body,
The one-way clutch, wherein the retainer column and the elastic body are arranged at positions deviating from the pitch circle of the rollers. 前記保持器の柱部を、その径方向断面の幅が前記ころのピッチ円に近づくほど狭くなる三角柱状に形成したことを特徴とする請求項１に記載の一方向クラッチ。   2. The one-way clutch according to claim 1, wherein the pillar portion of the cage is formed in a triangular pillar shape that becomes narrower as the width of the radial cross section approaches the pitch circle of the roller. 前記保持器の柱部を、前記ころのピッチ円を挟んで前記環状部材のカム面と径方向で対向する側に配置したことを特徴とする請求項１または２に記載の一方向クラッチ。   3. The one-way clutch according to claim 1, wherein a column portion of the cage is arranged on a side facing a cam surface of the annular member in a radial direction across a pitch circle of the rollers. 前記弾性体が板ばねであることを特徴とする請求項１乃至３のいずれかに記載の一方向クラッチ。   The one-way clutch according to any one of claims 1 to 3, wherein the elastic body is a leaf spring.
JP2014077902A 2014-04-04 2014-04-04 One-way clutch Expired - Fee Related JP6297390B2 (en)

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DE102008014134A1 (en) * 2008-03-13 2009-09-17 Schaeffler Kg Sleeve-shaped/roller-shaped free-wheel, has inner ring or outer ring formed as bars, which are fastened to ring board, where ring board and/or bars are arranged on shaft or outer part

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