JP2010106985A - One-way clutch - Google Patents

One-way clutch Download PDF

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JP2010106985A
JP2010106985A JP2008280784A JP2008280784A JP2010106985A JP 2010106985 A JP2010106985 A JP 2010106985A JP 2008280784 A JP2008280784 A JP 2008280784A JP 2008280784 A JP2008280784 A JP 2008280784A JP 2010106985 A JP2010106985 A JP 2010106985A
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inner member
planetary gear
outer member
way clutch
internal gear
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JP5058943B2 (en
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Minoru Araki
実 荒木
Kazuyuki Tomioka
和幸 富岡
Tokuo Saito
徳雄 齋藤
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Nifco Inc
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Nifco Inc
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a one-way clutch of internal gear type, capable of reducing the clutch diameter without making the diameter of epicyclic gears smaller. <P>SOLUTION: A plurality of recesses 40 and 42 for receiving epicyclic gears 44 and 46 are deviated from each other in the axial direction of an inner member 20 and formed in such positions that adjoining ones 40 and 42 are not overlapping when viewed in the axial direction of the inner member 20. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、ワンウェイクラッチに関し、特に、内接歯車式のワンウェイクラッチに関するものである。   The present invention relates to a one-way clutch, and more particularly to an internal gear type one-way clutch.

ファクシミリ装置やコピー機の給紙機構等に用いられるワンウェイクラッチとして、内周部に内歯車を有する筒状のアウタ部材と、前記内歯車の内側空間に回転自在に設けられ、外周部に係止エッジ部を形成された複数の凹部を有するインナ部材と、前記複数の凹部の各々に転動可能に受容されて前記内歯車に噛合する遊星ギアとを有し、前記インナ部材が前記アウタ部材に対して一方の側に回転するときには、当該回転に伴って前記遊星ギアの歯谷部に前記係止エッジ部が係合することにより、当該遊星ギアが転動不能になって前記アウタ部材と前記インナ部材とをトルク伝達関係で接続し、前記インナ部材が前記アウタ部材に対して他方の側に回転するときには、当該回転に伴って前記遊星ギアの歯谷部と前記係止エッジ部との係合が解除されることにより、当該遊星ギアが転動可能になり、前記アウタ部材と前記インナ部材との相対回転を許し、前記アウタ部材と前記インナ部材とをトルク伝達関係を切り離す内接歯車式のワンウェイクラッチが知られている（特許文献１、２）。
実用新案登録公報第２５０５０１０号 特開２００４−１９７５７公報 As a one-way clutch used in a paper feeding mechanism of a facsimile machine or a copier, a cylindrical outer member having an internal gear on the inner peripheral portion, and rotatably provided in the inner space of the inner gear and locked to the outer peripheral portion An inner member having a plurality of recesses formed with edge portions, and a planetary gear that is rotatably received in each of the plurality of recesses and meshes with the inner gear, and the inner member is connected to the outer member. On the other hand, when rotating to one side, the engagement edge portion engages with the tooth root portion of the planetary gear with the rotation, so that the planetary gear becomes non-rollable and the outer member and the When the inner member is connected to the inner member in a torque transmission relationship and the inner member rotates to the other side with respect to the outer member, the engagement between the root portion of the planetary gear and the locking edge portion is accompanied with the rotation. The answer is In this way, the planetary gear can roll, allows relative rotation between the outer member and the inner member, and disconnects the torque transmission relationship between the outer member and the inner member. Is known (Patent Documents 1 and 2).
Utility Model Registration Gazette No. 2505010 JP 2004-19757 A

内接歯車式のワンウェイクラッチは、ラチット式のワンウェイクラッチに比して小径化が可能であるが、従来のものは、インナ部材の一つの横断面位置に複数の凹部が設けられ、その複数の凹部は、インナ部材の半径方向に重複しないように設ける必要があるため、更なる小径化を図ることに限界かある。   The internal gear type one-way clutch can be reduced in diameter as compared to the ratchet type one-way clutch, but the conventional one is provided with a plurality of recesses in one cross-sectional position of the inner member. Since it is necessary to provide the recess so as not to overlap in the radial direction of the inner member, there is a limit to further reducing the diameter.

遊星ギアの小径化は、ワンウェイクラッチの小径化に繋がるが、遊星ギアの小径化に伴い遊星ギアの歯が小さくなると、歯の強度不足が生じ、許容トルク伝達容量の低下を招く。また、遊星ギアの小径化は、遊星ギアの製造精度を上げる必要を生じ、生産性を低下する原因になる。   The reduction of the diameter of the planetary gear leads to the reduction of the diameter of the one-way clutch. However, if the planetary gear teeth become smaller as the diameter of the planetary gear becomes smaller, the tooth strength becomes insufficient and the allowable torque transmission capacity decreases. In addition, the reduction in the diameter of the planetary gear necessitates an increase in the production accuracy of the planetary gear, which causes a decrease in productivity.

本発明が解決しようとする課題は、遊星ギアを小径化することなく、内接歯車式のワンウェイクラッチの小径化を推進することである。   The problem to be solved by the present invention is to promote the reduction of the diameter of the internal gear type one-way clutch without reducing the diameter of the planetary gear.

本発明によるワンウェイクラッチは、内周部に内歯車を有する筒状のアウタ部材と、前記内歯車の内側空間に回転自在に設けられ、外周部に係止エッジ部を形成された複数の凹部を有するインナ部材と、前記複数の凹部の各々に転動可能に受容されて前記内歯車に噛合する遊星ギアとを有し、前記インナ部材が前記アウタ部材に対して一方の側に回転するときには、当該回転に伴って前記遊星ギアの歯谷部に前記係止エッジ部が係合することにより、当該遊星ギアが転動不能になって前記アウタ部材と前記インナ部材とをトルク伝達関係で接続し、前記インナ部材が前記アウタ部材に対して他方の側に回転するときには、当該回転に伴って前記遊星ギアの歯谷部と前記係止エッジ部との係合が解除されることにより、当該遊星ギアが転動可能になり、前記アウタ部材と前記インナ部材との相対回転を許し、前記アウタ部材と前記インナ部材とをトルク伝達関係を切り離す、内接歯車式のワンウェイクラッチであって、前記複数の凹部が前記インナ部材の軸線方向に互いに偏倚した位置に設けられている。   A one-way clutch according to the present invention includes a cylindrical outer member having an internal gear on an inner peripheral portion, and a plurality of concave portions that are rotatably provided in an inner space of the internal gear and have locking edge portions formed on the outer peripheral portion. An inner member, and a planetary gear that is rotatably received in each of the plurality of recesses and meshes with the internal gear, and when the inner member rotates to one side with respect to the outer member, With the rotation, the engaging edge portion engages with the tooth root portion of the planetary gear, so that the planetary gear cannot roll and connects the outer member and the inner member in a torque transmission relationship. When the inner member rotates to the other side with respect to the outer member, the planetary gear teeth and the engaging edge are disengaged with the rotation, whereby the planet Gear can roll An internal gear type one-way clutch that allows relative rotation between the outer member and the inner member, and disconnects the torque transmission relationship between the outer member and the inner member, wherein the plurality of recesses are the inner member. Are provided at positions offset from each other in the axial direction.

本発明によるワンウェイクラッチは、好ましくは、前記凹部の径方向の深さが、前記インナ部材の半径より大きい。   In the one-way clutch according to the present invention, preferably, the depth of the concave portion in the radial direction is larger than the radius of the inner member.

本発明によるワンウェイクラッチは、好ましくは、前記複数の凹部は、前記インナ部材の軸線方向投影面で見て、前記インナ部材の中心軸線に対して互いに点対称となる位置に配置されている。   In the one-way clutch according to the present invention, preferably, the plurality of recesses are disposed at positions that are point-symmetric with respect to the central axis of the inner member when viewed from the axial projection plane of the inner member.

また、本発明によるワンウェイクラッチは、内周部に内歯車を有する筒状のアウタ部材と、前記内歯車の内側空間に回転自在に設けられ、外周部に係止エッジ部を形成された凹部を有するインナ部材と、前記凹部に転動可能に受容されて前記内歯車に噛合する遊星ギアとを有し、前記インナ部材が前記アウタ部材に対して一方の側に回転するときには、当該回転に伴って前記遊星ギアの歯谷部に前記係止エッジ部が係合することにより、当該遊星ギアが転動不能になって前記アウタ部材と前記インナ部材とをトルク伝達関係で接続し、前記インナ部材が前記アウタ部材に対して他方の側に回転するときには、当該回転に伴って前記遊星ギアの歯谷部と前記係止エッジ部との係合が解除されることにより、当該遊星ギアが転動可能になり、前記アウタ部材と前記インナ部材との相対回転を許し、前記アウタ部材と前記インナ部材とをトルク伝達関係を切り離す、内接歯車式のワンウェイクラッチであって、前記凹部の前記インナ部材の径方向の深さが、前記インナ部材の半径より大きい。   A one-way clutch according to the present invention includes a cylindrical outer member having an internal gear on an inner peripheral portion, and a recess provided rotatably in an inner space of the internal gear and having a locking edge portion formed on the outer peripheral portion. An inner member and a planetary gear that is rotatably received in the recess and meshes with the internal gear. When the inner member rotates to one side with respect to the outer member, The engagement edge portion engages with the tooth root portion of the planetary gear, so that the planetary gear cannot roll and connects the outer member and the inner member in a torque transmission relationship, and the inner member Is rotated to the other side with respect to the outer member, the planetary gear rolls by releasing the engagement between the root portion of the planetary gear and the locking edge portion with the rotation. Enabled, said An internal gear type one-way clutch that allows relative rotation between the outer member and the inner member and disconnects the torque transmission relationship between the outer member and the inner member, wherein the recess has a radial depth of the inner member. Is larger than the radius of the inner member.

本発明によるワンウェイクラッチは、複数の凹部の配置が、インナ部材の軸線方向に互いに偏倚した位置に設けられているので、ワンウェイクラッチの軸線方向寸法は長くなるものの、遊星ギアを小径化することなく、内接歯車式のワンウェイクラッチの小径化を推進できる。   In the one-way clutch according to the present invention, since the arrangement of the plurality of recesses is provided at positions offset from each other in the axial direction of the inner member, the dimension in the axial direction of the one-way clutch becomes longer, but without reducing the diameter of the planetary gear. The diameter of the internal gear type one-way clutch can be reduced.

本発明によるワンウェイクラッチの一つの実施形態を、図１〜図４を参照して説明する。   One embodiment of a one-way clutch according to the present invention will be described with reference to FIGS.

ワンウェイクラッチは、クラッチケースをなすアウタ部材１０を有する。アウタ部材１０は、軸線方向の一方の端部を端壁１２により閉じられた有底円筒体により構成され、内周面に一連の内歯（内歯車）１４を形成されている。   The one-way clutch has an outer member 10 that forms a clutch case. The outer member 10 is constituted by a bottomed cylindrical body whose one end in the axial direction is closed by an end wall 12, and a series of internal teeth (internal gears) 14 are formed on the inner peripheral surface.

内歯車の内側空間に相当するアウタ部材１０の円筒状の内部空間には、略円柱状のインナ部材２０が回転自在に設けられている。   A substantially columnar inner member 20 is rotatably provided in the cylindrical inner space of the outer member 10 corresponding to the inner space of the internal gear.

インナ部材２０の軸線方向の一方の端部には、インナ部材２０の中心軸線周りの円弧状案内突条２２が形成されている。アウタ部材１０の端壁１２には、アウタ部材１０の内周面と同心の円環状凹溝１４が形成されている。円弧状案内突条２２は円環状凹溝１６に摺動可能に係合している。   An arcuate guide protrusion 22 around the central axis of the inner member 20 is formed at one end of the inner member 20 in the axial direction. An annular groove 14 concentric with the inner peripheral surface of the outer member 10 is formed in the end wall 12 of the outer member 10. The arcuate guide protrusion 22 is slidably engaged with the annular groove 16.

インナ部材２０の軸線方向の他方の端部には半円形フランジ部２４が形成されている。インナ部材２０のこの他方の端部側には端部部材２６が配置されている。端部部材２６は、円形フランジ部２８と、円形フランジ部２８の一方の側に形成され半円形フランジ部２４と補形をなす半円形フランジ部３０と、円形フランジ部３０の他方の側に突出形成された外部接続部３２とを有する。端部部材２６は、半円形フランジ部３０をもって半円形フランジ部２４と係合してインナ部材２０とトルク伝達関係で結合され、円形フランジ部２８によってアウタ部材１０の軸線方向の他方の開口端を覆蓋している。円形フランジ部２８の外周面には円環状案内突条３４が形成されており、円環状案内突条３４はアウタ部材１０の開口端部分の内周面に形成された円環状凹溝１８に摺動可能に嵌合している。   A semicircular flange portion 24 is formed at the other end portion in the axial direction of the inner member 20. An end member 26 is disposed on the other end side of the inner member 20. The end member 26 has a circular flange portion 28, a semicircular flange portion 30 which is formed on one side of the circular flange portion 28 and complements the semicircular flange portion 24, and protrudes on the other side of the circular flange portion 30. The external connection part 32 is formed. The end member 26 engages with the semicircular flange portion 24 with the semicircular flange portion 30 and is coupled to the inner member 20 in a torque transmission relationship. The circular flange portion 28 defines the other open end in the axial direction of the outer member 10. Covered. An annular guide protrusion 34 is formed on the outer peripheral surface of the circular flange portion 28, and the annular guide protrusion 34 is slid into an annular groove 18 formed on the inner peripheral surface of the opening end portion of the outer member 10. It is movably fitted.

これにより、インナ部材２０は、軸線方向の両端部をアウタ部材１０より支持され、アウタ部材１０の円筒状内部空間内を、当該円筒状内部空間の中心と同心に回転可能になっている。ここで、インナ部材２０が、アウタ部材１０の円筒状内部空間の中心と同心とは、当該円筒状内部空間の内周面に形成された一連の内歯１４による内歯車の中心とインナ部材２０の回転中心とが同心であることを意味する。   Thereby, the inner member 20 is supported by the outer member 10 at both ends in the axial direction, and can rotate in the cylindrical inner space of the outer member 10 concentrically with the center of the cylindrical inner space. Here, the inner member 20 is concentric with the center of the cylindrical inner space of the outer member 10, and the center of the internal gear and the inner member 20 by the series of internal teeth 14 formed on the inner peripheral surface of the cylindrical inner space. This means that the center of rotation is concentric.

インナ部材２０には、複数、本実施形態では、２個の凹部４０、４２が、インナ部材２０の軸線方向（図２で見て左右方向）に互いに偏倚し、インナ部材２０の軸線方向で見て互いに重複しない位置に形成されている。しかも、凹部４０、４２は、インナ部材２０の軸線方向投影面で見て、インナ部材２０の中心軸線に対して互いに点対称となる位置に配置されている。つまり、凹部４０と４２は、インナ部材２０の中心軸線周りに互いに１８０度回転変位しはた位置にある。   In the inner member 20, a plurality of, in the present embodiment, two concave portions 40, 42 are offset from each other in the axial direction of the inner member 20 (left-right direction as viewed in FIG. 2), and viewed in the axial direction of the inner member 20. Are formed at positions that do not overlap each other. In addition, the recesses 40 and 42 are disposed at positions that are point-symmetric with respect to the central axis of the inner member 20 when viewed from the axial projection plane of the inner member 20. That is, the recesses 40 and 42 are at positions where they are rotationally displaced from each other by 180 degrees around the central axis of the inner member 20.

凹部４０、４２は、インナ部材２０の外周部の一部を、ポケット状に切り欠いたものである。凹部４０、４２には、外周面に一連の外歯４８、５０を形成された遊星ギア４４、４６が、自身の中心軸線周りに回転可能に、即ち、転動可能に、且つ所定量のみインナ部材２０の周方向に変位可能に配置されている。   The concave portions 40 and 42 are formed by cutting out a part of the outer peripheral portion of the inner member 20 into a pocket shape. In the recesses 40 and 42, planetary gears 44 and 46 each having a series of external teeth 48 and 50 formed on the outer peripheral surface thereof are rotatable around their own central axes, that is, capable of rolling, and a predetermined amount of inner gears. The member 20 is disposed so as to be displaceable in the circumferential direction.

遊星ギア４４、４６は、各々、このように凹部４０、４２に受容され、遊星ギア４４、４６の外歯４８、５０は、各々、内歯車１４に噛合している。   The planetary gears 44 and 46 are thus received in the recesses 40 and 42, respectively, and the external teeth 48 and 50 of the planetary gears 44 and 46 are respectively meshed with the internal gear 14.

ここで、インナ部材２０がアウタ部材１０に対して一方の側に回転するクラッチ係合時のインナ部材２０の回転方向を、図３、図４で見て時計廻り方向とし、インナ部材２０がアウタ部材１０に対して他方の側に回転するクラッチ非係合（解放）時のインナ部材２０の回転方向を、図３、図４で見て反時計廻り方向とする。   Here, the rotation direction of the inner member 20 at the time of clutch engagement in which the inner member 20 rotates to one side with respect to the outer member 10 is the clockwise direction as viewed in FIGS. 3 and 4, and the inner member 20 is the outer member 20. The rotation direction of the inner member 20 when the clutch that rotates to the other side with respect to the member 10 is not engaged (released) is the counterclockwise direction as viewed in FIGS.

インナ部材２０の上述の時計廻り方向で見て、凹部４０、４２の回転方向遅れ側の縁部には、遊星ギア４４、４６の外歯４８、５０による歯谷部４８Ａ、５０Ａに選択的に係合する係止エッジ部５２、５４が形成されている。   As viewed in the clockwise direction of the inner member 20, the recesses 40, 42 are selectively connected to the root portions 48 </ b> A, 50 </ b> A by the external teeth 48, 50 of the planetary gears 44, 46 on the edge of the rotation direction delay side. Engaging locking edge portions 52 and 54 are formed.

インナ部材２０がアウタ部材１０に対して一方の側、つまり、図３、図４で見て時計廻り方向に回転する時には、当該回転に伴ってインナ部材２０が凹部４０、４２の遊星ギア４４、４６に対して時計廻り方向側に変位することにより、係止エッジ部５２、５４の少なくとも一方が遊星ギア４４、４６の歯谷部４８Ａ、５０Ａに係合する。これにより、遊星ギア４４、４６の少なくとも一方が転動不能になり、遊星ギア４４、４６の外歯４８、５０とアウタ部材１０の内歯１４の噛合とのもとに、アウタ部材１０とインナ部材２０とがトルク伝達関係で接続される。   When the inner member 20 rotates with respect to the outer member 10 on one side, that is, in the clockwise direction as viewed in FIGS. 3 and 4, the inner member 20 causes the planetary gears 44, By displacing 46 in the clockwise direction, at least one of the locking edge portions 52 and 54 engages with the tooth root portions 48A and 50A of the planetary gears 44 and 46, respectively. As a result, at least one of the planetary gears 44 and 46 cannot roll, and the outer member 10 and the inner gear are engaged with the outer teeth 48 and 50 of the planetary gears 44 and 46 and the inner teeth 14 of the outer member 10. The member 20 is connected in a torque transmission relationship.

これに対し、インナ部材２０がアウタ部材１０に対して他方の側、つまり、図３、図４で見て反時計廻り方向に回転する時には、当該回転に伴ってインナ部材２０が凹部４０、４２の遊星ギア４４、４６に対して反時計廻り方向側に変位することにより、係止エッジ部５２、５４が遊星ギア４４、４６の歯谷部４８Ａ、５０Ａとの係合より離脱（係合解除）する。これにより、遊星ギア４４、４６が各々転動可能になり、アウタ部材１０とインナ部材２０とが相対回転できる状態になり、アウタ部材１０とインナ部材２０とのトルク伝達関係が切り離される。   On the other hand, when the inner member 20 rotates on the other side with respect to the outer member 10, that is, in the counterclockwise direction as viewed in FIGS. Of the planetary gears 44 and 46 in the counterclockwise direction causes the locking edge portions 52 and 54 to disengage from the engagement with the tooth root portions 48A and 50A of the planetary gears 44 and 46 (disengagement). ) As a result, the planetary gears 44 and 46 can each roll, the outer member 10 and the inner member 20 can rotate relative to each other, and the torque transmission relationship between the outer member 10 and the inner member 20 is disconnected.

上述したように、本実施形態によるワンウェイクラッチによれば、各々、遊星ギア４４、４６を受容する２個の凹部４０、４２の配置が、インナ部材２０の軸線方向に互いに偏倚し、隣り合う凹部４０、４２同士でインナ部材２０の軸線方向で見て重複しない位置に設けられているので、ワンウェイクラッチの軸線方向寸法は長くなるものの、遊星ギア４４、４６を小径化することなく、ワンウェイクラッチの小径化が図られる。   As described above, according to the one-way clutch according to the present embodiment, the arrangement of the two concave portions 40 and 42 that receive the planetary gears 44 and 46 are displaced from each other in the axial direction of the inner member 20, and adjacent concave portions. 40 and 42 are provided at positions that do not overlap each other when viewed in the axial direction of the inner member 20, so that the axial dimension of the one-way clutch is increased, but the diameter of the planetary gears 44 and 46 is reduced without reducing the diameter of the one-way clutch. The diameter can be reduced.

このような凹部４０、４２の配置により、凹部４０、４２を、インナ部材２０の軸線方向投影面で見てインナ部材２０の半径方向に重複して設けることができるから、図２、図３に示されているように、凹部４０、４２は、各々、径方向の深さ（インナ部材２０の半径方向の深さ）Ｄをインナ部材２０の半径Ｒより大きい深い窪みに設定する可能になる。このことに応じて、凹部４０、４２に配置する遊星ギア４４、４６として、歯車外径がインナ部材２０の半径Ｒより大きい大型の歯車を用いることができるようになる。   With such an arrangement of the recesses 40 and 42, the recesses 40 and 42 can be provided overlapping in the radial direction of the inner member 20 when viewed from the axial projection plane of the inner member 20. As shown, the recesses 40, 42 each allow a radial depth (the radial depth of the inner member 20) D to be set to a deep recess larger than the radius R of the inner member 20. Accordingly, a large gear having a gear outer diameter larger than the radius R of the inner member 20 can be used as the planetary gears 44 and 46 disposed in the recesses 40 and 42.

このことにより、遊星ギア４４、４６の小径化による弊害が生じることがなく、許容トルク伝達容量の増大が図られる。   As a result, there is no adverse effect caused by the reduction of the diameter of the planetary gears 44 and 46, and the allowable torque transmission capacity can be increased.

なお、上述の実施形態では、インナ部材２０に設けられる凹部の個数を２個としたが、凹部の個数は、２個に限られることなく、必要に応じて、３個、４個と、それ以上の複数個であってもよい。   In the above-described embodiment, the number of recesses provided in the inner member 20 is two. However, the number of recesses is not limited to two, and may be three, four, and so on as necessary. A plurality of the above may be used.

この発明によるワンウェイクラッチの一つの実施形態を示す斜視図。The perspective view which shows one Embodiment of the one-way clutch by this invention. この発明によるワンウェイクラッチの一つの実施形態を示す断面図。Sectional drawing which shows one Embodiment of the one-way clutch by this invention. 図２の線Ａ−Ａ断面図。FIG. 3 is a sectional view taken along line AA in FIG. 2. 図２の線Ｂ−Ｂ断面図。FIG. 3 is a sectional view taken along line BB in FIG. 2.

符号の説明Explanation of symbols

１０ アウタ部材
１２ 端壁
１４ 内歯
１６、１８ 円環状凹溝
２０ インナ部材
２２ 円弧状案内突条
２４ 半円形フランジ部
２６ 端部部材
２８ 円形フランジ部
３０ 半円形フランジ部
３２ 外部接続部
３４ 円環状案内突条
４０、４２ 凹部
４４、４６ 遊星ギア
４８、５０ 外歯
４４、４６ 遊星ギア
４８、５０ 外歯
５２、５４ 係止エッジ部 DESCRIPTION OF SYMBOLS 10 Outer member 12 End wall 14 Internal tooth | gear 16, 18 Annular groove | channel 20 Inner member 22 Arc-shaped guide protrusion 24 Semicircular flange part 26 End part member 28 Circular flange part 30 Semicircular flange part 32 External connection part 34 Circular ring Guide ridge 40, 42 Recess 44, 46 Planetary gear 48, 50 External tooth 44, 46 Planetary gear 48, 50 External tooth 52, 54 Locking edge

Claims (4)

内周部に内歯車を有する筒状のアウタ部材と、前記内歯車の内側空間に回転自在に設けられ、外周部に係止エッジ部を形成された複数の凹部を有するインナ部材と、前記複数の凹部の各々に転動可能に受容されて前記内歯車に噛合する遊星ギアとを有し、前記インナ部材が前記アウタ部材に対して一方の側に回転するときには、当該回転に伴って前記遊星ギアの歯谷部に前記係止エッジ部が係合することにより、当該遊星ギアが転動不能になって前記アウタ部材と前記インナ部材とをトルク伝達関係で接続し、前記インナ部材が前記アウタ部材に対して他方の側に回転するときには、当該回転に伴って前記遊星ギアの歯谷部と前記係止エッジ部との係合が解除されることにより、当該遊星ギアが転動可能になり、前記アウタ部材と前記インナ部材との相対回転を許し、前記アウタ部材と前記インナ部材とをトルク伝達関係を切り離す、内接歯車式のワンウェイクラッチであって、
前記複数の凹部が前記インナ部材の軸線方向に互いに偏倚した位置に設けられているワンウェイクラッチ。 A cylindrical outer member having an internal gear on an inner peripheral portion; an inner member having a plurality of recesses provided rotatably in an inner space of the internal gear and having locking edge portions formed on the outer peripheral portion; A planetary gear that is rotatably received in each of the recesses and meshes with the internal gear, and when the inner member rotates to one side with respect to the outer member, the planetary gear rotates with the rotation. When the engaging edge portion engages with the tooth root portion of the gear, the planetary gear cannot roll and connects the outer member and the inner member in a torque transmission relationship, and the inner member is connected to the outer member. When rotating to the other side with respect to the member, the planetary gear can roll by releasing the engagement between the tooth root portion of the planetary gear and the locking edge portion with the rotation. The outer member and the inner Allowing relative rotation between wood, the outer member and separating the inner member and the torque transmitting relationship, a internal gear one-way clutch,
The one-way clutch in which the plurality of recesses are provided at positions offset from each other in the axial direction of the inner member. 前記凹部の径方向の深さが、前記インナ部材の半径より大きい請求項１記載のワンウェイクラッチ。   The one-way clutch according to claim 1, wherein a depth of the concave portion in a radial direction is larger than a radius of the inner member. 前記複数の凹部は、前記インナ部材の軸線方向投影面で見て、前記インナ部材の中心軸線に対して互いに点対称となる位置に配置されている請求項１または２に記載のワンウェイクラッチ。   3. The one-way clutch according to claim 1, wherein the plurality of concave portions are arranged at positions that are point-symmetric with respect to a central axis of the inner member when viewed from an axial projection plane of the inner member. 内周部に内歯車を有する筒状のアウタ部材と、前記内歯車の内側空間に回転自在に設けられ、外周部に係止エッジ部を形成された凹部を有するインナ部材と、前記凹部に転動可能に受容されて前記内歯車に噛合する遊星ギアとを有し、前記インナ部材が前記アウタ部材に対して一方の側に回転するときには、当該回転に伴って前記遊星ギアの歯谷部に前記係止エッジ部が係合することにより、当該遊星ギアが転動不能になって前記アウタ部材と前記インナ部材とをトルク伝達関係で接続し、前記インナ部材が前記アウタ部材に対して他方の側に回転するときには、当該回転に伴って前記遊星ギアの歯谷部と前記係止エッジ部との係合が解除されることにより、当該遊星ギアが転動可能になり、前記アウタ部材と前記インナ部材との相対回転を許し、前記アウタ部材と前記インナ部材とをトルク伝達関係を切り離す、内接歯車式のワンウェイクラッチであって、
前記凹部の前記インナ部材の径方向の深さが、前記インナ部材の半径より大きいワンウェイクラッチ。 A cylindrical outer member having an internal gear on the inner peripheral portion, an inner member having a concave portion that is rotatably provided in the inner space of the internal gear and has a locking edge portion formed on the outer peripheral portion, and a roller that is turned into the concave portion. A planetary gear that is movably received and meshes with the internal gear, and when the inner member rotates to one side with respect to the outer member, a tooth root portion of the planetary gear accompanies the rotation. When the locking edge portion is engaged, the planetary gear becomes non-rollable and connects the outer member and the inner member in a torque transmission relationship, and the inner member is connected to the outer member on the other side. When rotating to the side, the planetary gear is allowed to roll by releasing the engagement between the tooth root portion of the planetary gear and the locking edge portion along with the rotation, and the outer member and the Relative rotation with the inner member And, wherein the outer member and separating the inner member and the torque transmitting relationship, a internal gear one-way clutch,
A one-way clutch in which the inner member has a greater depth in the radial direction than the radius of the inner member.
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Cited By (5)

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WO2011135812A1 (en) * 2010-04-27 2011-11-03 株式会社ニフコ One-way clutch
JP2016160332A (en) * 2015-02-27 2016-09-05 関西化学機械製作株式会社 Method for producing modified oils and fats and method for producing fatty acid ester using the same
JP2017198295A (en) * 2016-04-27 2017-11-02 キヤノン株式会社 One-way clutch
CN109944883A (en) * 2017-12-21 2019-06-28 佳能株式会社 One-way clutch
JP2019173910A (en) * 2018-03-29 2019-10-10 キヤノン株式会社 One-way clutch, sheet conveyance device, and image forming apparatus

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JPH10331941A (en) * 1997-05-28 1998-12-15 Nifco Inc One-way clutch
JP2002340048A (en) * 2001-05-17 2002-11-27 Nifco Inc Clutch device
JP2004019757A (en) * 2002-06-14 2004-01-22 Nifco Inc Clutch device

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JPH10331941A (en) * 1997-05-28 1998-12-15 Nifco Inc One-way clutch
JP2002340048A (en) * 2001-05-17 2002-11-27 Nifco Inc Clutch device
JP2004019757A (en) * 2002-06-14 2004-01-22 Nifco Inc Clutch device

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011135812A1 (en) * 2010-04-27 2011-11-03 株式会社ニフコ One-way clutch
JP2011231840A (en) * 2010-04-27 2011-11-17 Nifco Inc One-way clutch
GB2492931A (en) * 2010-04-27 2013-01-16 Nifco Inc One-way clutch
US8597156B2 (en) 2010-04-27 2013-12-03 Nifco Inc. One-way clutch
GB2492931B (en) * 2010-04-27 2017-03-01 Nifco Inc One-way clutch
JP2016160332A (en) * 2015-02-27 2016-09-05 関西化学機械製作株式会社 Method for producing modified oils and fats and method for producing fatty acid ester using the same
JP2017198295A (en) * 2016-04-27 2017-11-02 キヤノン株式会社 One-way clutch
CN109944883A (en) * 2017-12-21 2019-06-28 佳能株式会社 One-way clutch
US10883553B2 (en) 2017-12-21 2021-01-05 Canon Kabushiki Kaisha One-way clutch
CN109944883B (en) * 2017-12-21 2021-05-18 佳能株式会社 One-way clutch
JP2019173910A (en) * 2018-03-29 2019-10-10 キヤノン株式会社 One-way clutch, sheet conveyance device, and image forming apparatus
JP7134669B2 (en) 2018-03-29 2022-09-12 キヤノン株式会社 One-way clutch, sheet conveying device, and image forming device
US11479425B2 (en) 2018-03-29 2022-10-25 Canon Kabushiki Kaisha One-way clutch, sheet conveying apparatus, and image forming apparatus

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