WO2015068318A1 - ローラ型ワンウェイクラッチ及び側板 - Google Patents
ローラ型ワンウェイクラッチ及び側板 Download PDFInfo
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- WO2015068318A1 WO2015068318A1 PCT/JP2014/003263 JP2014003263W WO2015068318A1 WO 2015068318 A1 WO2015068318 A1 WO 2015068318A1 JP 2014003263 W JP2014003263 W JP 2014003263W WO 2015068318 A1 WO2015068318 A1 WO 2015068318A1
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- side plate
- outer ring
- way clutch
- roller
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- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
- F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
- F16D41/066—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical
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- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
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- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
- F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
- F16D41/066—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical
- F16D2041/0665—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical characterised by there being no cage other than the inner and outer race for distributing the intermediate members
Definitions
- the present invention relates to a roller type one-way clutch and a side plate used for a roller type one-way clutch, which are used as components such as torque transmission and backstop in a drive device such as an automobile or an industrial machine.
- a roller type one-way clutch in general, includes an outer ring having at least one pocket having a cam surface on the inner periphery, an inner ring disposed concentrically with the outer ring and having an outer raceway surface, and an inner ring disposed in the pocket. It consists of a roller that transmits torque between the outer raceway surface and the inner circumferential cam surface of the outer ring, a spring that contacts the idling side of the roller, and the like.
- the roller type one-way clutch rotates the inner ring in only one direction with respect to the outer ring by a cam mechanism including a roller and a cam surface. That is, the inner ring is configured to idle in one direction with respect to the outer ring, and to apply rotational torque to the outer ring via the cam mechanism only in the opposite direction.
- a one-way clutch used in a two-wheeler starter is used in a severe environment due to high rotation and high vibration, so foreign matter such as dust containing wear powder accumulates in the one-way clutch.
- Cheap Since foreign matter in the one-way clutch adversely affects the meshing performance, it is preferable that it can be removed quickly in order to improve the reliability of the one-way clutch.
- a side plate having a spline groove that engages with a member such as an engine crankshaft is provided on the inner diameter portion. Some are attached to the outer ring of the clutch by bolts.
- Patent Document 2 it is described that a foreign matter discharge hole for removing foreign matter to the outside is provided in the side plate.
- An annular side plate is fixed to the axial end surface of the annular outer ring having substantially the same diameter.
- the conventional side plate is circular and covers one end surface of the outer ring in the axial direction. For this reason, there is a problem that the amount of material used is large, and when the side plate is processed by press molding, there is a problem that the yield is poor, and a request for reducing the manufacturing cost cannot be satisfied.
- an object of the present invention is to provide a roller type one-way clutch and a side plate in which the shape of the side plate is a non-circular shape, the amount of material used is reduced, and the yield is improved, thereby reducing the manufacturing cost.
- the roller type one-way clutch of the present invention comprises: An outer ring formed with at least one pocket having a cam surface on the inner periphery; An inner ring that is spaced apart radially inward from the outer ring and is concentrically disposed so as to be relatively rotatable; A roller disposed in the pocket, engaging the cam surface, and transmitting torque between the outer ring and the inner ring; A spring disposed between the outer ring and the roller in the pocket, and biasing the roller in an engagement direction with the cam surface;
- a roller type one-way clutch comprising: a side plate fixed so as to come into contact with one axial end surface of the outer ring, The side plate has a non-circular shape, the one end surface in the axial direction is annular, and at least a part of the one end surface in the axial direction of the outer ring is exposed in a state where the side plate is fixed. It is said.
- the side plate used in the roller type one-way clutch of the present invention is: An outer ring formed with at least one pocket having a cam surface on the inner periphery, an inner ring spaced concentrically with respect to the outer ring in the radial direction and arranged concentrically so as to be relatively rotatable, and disposed in the pocket; A roller that engages with the cam surface and transmits torque between the outer ring and the inner ring, and is disposed between the outer ring and the roller in the pocket and engages the roller with the cam surface.
- a side plate used for a roller type one-way clutch provided with a spring biasing in the direction One end surface in the axial direction of the outer ring has an annular shape, the side plate has a non-circular shape, is fixed so as to contact the end surface in the axial direction, and the axial direction of the outer ring is fixed in a state where the side plate is fixed.
- the side plate has a non-circular shape, the one end surface in the axial direction is annular, and at least a part of the one end surface in the axial direction of the outer ring is exposed with the side plate fixed. Therefore, the amount of the side plate material used can be reduced and the yield can be improved, thereby reducing the manufacturing cost.
- the side plate is made non-circular and the amount of material used for the side plate is reduced, so that the weight of the roller type one-way clutch can be reduced.
- the pocket is exposed from the side plate, the amount of the side plate material used can be reduced, the yield can be improved, and the function of discharging foreign matter from the pocket can be secured.
- FIG. 1 is a front view showing a roller type one-way clutch according to a first embodiment of the present invention.
- FIG. 3 is an axial sectional view taken along line AA in FIG. 2. It is a front view which shows the roller type one-way clutch of 2nd Example of this invention.
- FIG. 5 is an axial sectional view taken along line BB in FIG. 4. It is a front view which shows the roller type one-way clutch of 3rd Example of this invention.
- FIG. 7 is an axial sectional view taken along the line CC of FIG. 6. It is a front view which shows the roller type one-way clutch of 4th Example of this invention.
- FIG. 9 is an axial sectional view taken along line DD in FIG. 8. It is a front view of the roller type one-way clutch which made the side plate the rectangle.
- FIG. 1 is a front view showing a roller type one-way clutch to which each embodiment of the present invention can be applied.
- FIG. 1 shows a state where the roller is engaged with the cam surface, that is, a state where the roller type one-way clutch is engaged and locked under a high load.
- the annular side plate is provided on the back side of the drawing, and only a part of the central portion is shown.
- the roller type one-way clutch 30 includes an annular outer ring 1 having a plurality of pockets 4 formed as recesses having cam surfaces 12 on the inner periphery, and a radially inner diameter side with respect to the outer ring 1.
- An inner ring 2 having a ring-shaped outer circumferential raceway surface 11 that is spaced apart and is concentrically disposed so as to be relatively rotatable, and an outer circumferential raceway surface 11 of the inner ring 2 and an inner circumferential cam surface 12 of the outer ring 1 that are disposed in the pocket 4.
- a roller 3 for transmitting torque therebetween.
- the roller type one-way clutch 30 is further disposed in the pocket 4, and includes a spring 5 that urges the roller 3 in the direction of engagement with the cam surface 12, a retainer 6 that holds the roller 3, an engine crankshaft, and the like.
- a spline groove 9 to be mated is provided on the inner diameter portion, and a conventional side plate 7 fixed by caulking to the outer ring 1 with a rivet 14 so as to be in contact with the axial end surface 21 of the outer ring 1 is provided.
- the cage 6 is not fixed to either the outer ring 1 or the inner ring 2 and is rotatable relative to the outer ring 1 and the inner ring 2.
- the pockets 4 provided in the outer ring 1 are provided at three locations in the circumferential direction.
- the side plate 7 is used to fix the outer plate 1 to the outer ring 1 with the rivets 14, and three perforations 8 penetrating in the axial direction are equally provided in the circumferential direction. It goes without saying that the number of the pockets 4 can be set to a plurality of, for example, 3 to 6, depending on the required torque.
- the cage 6 has windows 18 corresponding to the number of rollers 3.
- the window 18 passes through in the radial direction, but is closed on both the flange portion 17 side and the end portion 19 side facing the flange portion 17 in the axial direction.
- the window width is smaller than the roller diameter. That is, the roller 3 is seated in a substantially rectangular window 18 surrounded by four sides, and the roller 3 can be prevented from falling off in the inner diameter direction.
- spring 5 One end of the spring 5, that is, the tab 15 is locked to the axial end surface of the outer ring 1 as shown in FIG. 1, and the other end, that is, the tab 16 of the roller 3 as shown in FIG. It is sandwiched between the end face in the axial direction and the flange portion 17 of the cage 6. Since it comprised in this way, spring 5 itself is supported in the fixed state with respect to the outer ring
- the spring 5 is an accordion spring, but it is also possible to use a spring having another shape such as a coil spring.
- FIG. 2 is a front view showing the roller type one-way clutch according to the first embodiment of the present invention
- FIG. 3 is an axial sectional view taken along the line AA of FIG.
- the side plate 40 of the roller type one-way clutch 30 has a non-circular (non-annular) shape, and here has a triangular shape as a whole.
- the end surface 21 in the axial direction of the outer ring 1 is annular, and at least a part of the end surface 21 in the axial direction of the outer ring 1 is exposed in a state where the side plate 40 having the central hole 45 penetrating in the axial direction is fixed.
- the side plate 40 is provided with a through hole 48 penetrating in the axial direction through which the rivet 14 penetrates at a position in the vicinity of each apex of the triangle. Thus, the side plate 40 is fixed to the outer ring 1.
- Three exposed portions are formed between the linear notches 41 and the annular edge of the outer ring 1, which are the three sides of the side plate 40.
- a material corresponding to the exposed portion of the side plate 40 can be reduced.
- the notch 41 of the side plate 40 substantially covers the pocket 4 of the outer ring 1.
- the foreign matter discharging function for discharging foreign matter from the pocket 4 is not sufficient, but the material of the side plate 40 is reduced and the yield is improved.
- FIG. 4 is a front view showing a roller type one-way clutch according to a second embodiment of the present invention
- FIG. 5 is an axial sectional view taken along line BB of FIG.
- a groove portion 42 is formed in a surface that is substantially in the center of the three straight cutout portions 41 of the triangular side plate 40 and faces the pocket 4.
- the groove portion 42 extends in the radial direction, terminates inward of the side plate 40, and opens to the notch portion 41 at the opening portion 43.
- the groove part 42 is provided in each notch part 41.
- each groove 42 terminates at a position facing the pocket 4. For this reason, the pocket 4 communicates with the outside through the groove 42 and its opening 43. Therefore, foreign matter can be discharged from the inside of the pocket 4 to the outside via the groove 42.
- the material of the side plate 40 is reduced, the yield is improved, and foreign matter such as wear powder and dust can be discharged from the pocket 4. Since the groove portion 42 can be simultaneously formed by pressing when the side plate 40 is punched, the number of processes is not increased.
- FIG. 6 is a front view showing a roller type one-way clutch according to a third embodiment of the present invention
- FIG. 7 is an axial sectional view taken along the line CC of FIG.
- the side plate 40 is further cut away as compared with the first and second embodiments.
- the linear notch 41 is formed near the center of the side plate 40. For this reason, in 3rd Example, a part of pocket 4 is exposed to the outer-diameter side of the notch part 41, and the cam surface 12 can be seen.
- the side plate 40 In order to maximize the foreign matter discharging effect, it is preferable to arrange the side plate 40 so that the maximum diameter portion of the pocket 4 is exposed. In the third embodiment, the material of the side plate 40 is further reduced, the yield is improved, and foreign matter can be discharged from the pocket 4.
- FIG. 8 is a front view showing a roller type one-way clutch according to a fourth embodiment of the present invention
- FIG. 9 is an axial sectional view taken along line DD of FIG.
- the fourth embodiment is a modification of the third embodiment.
- the cutout portion 41 is linear, and in this embodiment, the side plate 40 is provided with a curved portion 44 that is curved to the maximum near the center of the cutout portion 41 toward the center of the side plate. . For this reason, most of the pocket 4 is exposed on the outer diameter side of the notch 41.
- the side plate 40 it is preferable to arrange the side plate 40 so that the maximum diameter portion of the pocket 4 is exposed in order to maximize the foreign matter discharging effect.
- the material of the side plate 40 can be further reduced as compared with the other embodiments, the yield is improved, and the effect of discharging foreign matter from the pocket 4 is enhanced.
- the side plate 40 also has a function of preventing the rollers 3 and the springs 5 in the pocket 4 from falling off in the axial direction, the entire pocket 4 is not exposed.
- a triangle is illustrated as the non-circular side plate 40, other non-circular shapes are possible, for example, a quadrilateral, a pentagon, etc. are possible as polygons other than the triangle. Any shape that exposes at least a part of the axial end surface 21 when the side plate 40 is attached to the axial end surface 21 of the outer ring 1 may be used.
- FIG. 10 shows a roller-type one-way clutch 30 in which the side plate 50 is rectangular.
- a side plate 50 having a substantially square shape is fixed to the axial end surface 21 of the outer ring 1 in the same manner as in the above embodiments.
- the side plate 50 having the four notches 51 is fixed to the outer ring 1 by the rivets 14 in the vicinity of the four apexes.
- the pockets 4 of the outer ring 1 are also arranged at four locations in the circumferential direction. As shown in FIG. 10, a part of the pocket 4 is exposed from each notch 51. Also in FIG. 10, the groove
- the notches 41 and 51 of the side plates 40 and 50 can be used as positioning indexes when the rivet 14 is caulked when the side plates 40 and 50 are fixed to the outer ring 1.
- the through hole 48 (the side plate 50 is not shown) has a different shape or a different diameter on the front and back sides, thereby preventing erroneous assembly by the positioning tool. can do.
- the front and back of the side plates 40 and 50 can be distinguished by making the left and right inclinations of the notches 41 and 51 of the side plates 40 and 50 slightly different.
- groove part 42 is formed by press work, it can also be formed by cutting. Furthermore, it can also form simultaneously with the forging of the side plate 40 and the side plate 50.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Mechanical Operated Clutches (AREA)
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
Description
内周にカム面を有する少なくとも一つのポケットが形成された外輪と、
前記外輪に対して半径方向内径側に離間され、相対回転自在に同心状に配置された内輪と、
前記ポケットに配置され、前記カム面に係合し、前記外輪と前記内輪との間でトルクを伝達するローラと、
前記ポケット内で前記外輪と前記ローラとの間に配置され、前記ローラを前記カム面との係合方向に付勢するスプリングと、
前記外輪の軸方向一端面に当接するように固定された側板と、を備えるローラ型ワンウェイクラッチにおいて、
前記側板は非円形の形状を有し、前記軸方向一端面は円環状であり、前記側板が固定された状態で前記外輪の前記軸方向一端面の少なくとも一部が露出していることを特徴としている。
内周にカム面を有する少なくとも一つのポケットが形成された外輪と、前記外輪に対して半径方向内径側に離間され、相対回転自在に同心状に配置された内輪と、前記ポケットに配置され、前記カム面に係合し、前記外輪と前記内輪との間でトルクを伝達するローラと、前記ポケット内で前記外輪と前記ローラとの間に配置され、前記ローラを前記カム面との係合方向に付勢するスプリングとを備えたローラ型ワンウェイクラッチに用いる側板であって、
前記外輪の軸方向一端面は円環状であり、前記側板は非円形の形状を備え、前記軸方向端面に当接するように固定され、前記側板が固定された状態で前記外輪の前記軸方向一端面の少なくとも一部が露出することを特徴としている側板。
図2は、本発明の第1実施例のローラ型ワンウェイクラッチを示す正面図であり、図3は、図2のA-A線に沿った軸方向断面図である。
図4は、本発明の第2実施例のローラ型ワンウェイクラッチを示す正面図であり、図5は、図4のB-B線に沿った軸方向断面図である。
図6は、本発明の第3実施例のローラ型ワンウェイクラッチを示す正面図であり、図7は、図6のC-C線に沿った軸方向断面図である。
図8は、本発明の第4実施例のローラ型ワンウェイクラッチを示す正面図であり、図9は、図8のD-D線に沿った軸方向断面図である。
2 内輪
3 ローラ
4 ポケット
5 スプリング
7 側板
6 保持器
8 穿孔
9 スプライン溝
11 内輪の外周軌道面
12 カム面
14 リベット
17 保持器のフランジ部
18 保持器の窓
21 外輪の端面
30 ローラ型ワンウェイクラッチ
40 側板
41 切欠部
42 溝部
43 開口部
44 湾曲部
45 中央孔
48 貫通孔
50 側板
51 切欠部
Claims (13)
- 内周にカム面を有する少なくとも一つのポケットが形成された外輪と、
前記外輪に対して半径方向内径側に離間され、相対回転自在に同心状に配置された内輪と、
前記ポケットに配置され、前記カム面に係合し、前記外輪と前記内輪との間でトルクを伝達するローラと、
前記ポケット内で前記外輪と前記ローラとの間に配置され、前記ローラを前記カム面との係合方向に付勢するスプリングと、
前記外輪の軸方向一端面に当接するように固定された側板と、を備えるローラ型ワンウェイクラッチにおいて、
前記側板は非円形の形状を有し、前記軸方向一端面は円環状であり、前記側板が固定された状態で前記外輪の前記軸方向一端面の少なくとも一部が露出していることを特徴とするローラ型ワンウェイクラッチ。 - 前記側板は三角形の形状をしていることを特徴とする請求項1に記載のローラ型ワンウェイクラッチ。
- 前記側板は、三角形の各頂点近傍で前記外輪に固定されていることを特徴とする請求項2に記載のローラ型ワンウェイクラッチ。
- 前記側板は、三角形の各辺の中央部で前記ポケットに対向していることを特徴とする請求項2または3に記載のローラ型ワンウェイクラッチ。
- 前記ポケットは、前記側板の各辺の中央部近傍で露出していることを特徴とする請求項2乃至4のいずれか1項に記載のローラ型ワンウェイクラッチ。
- 前記側板の各辺は前記側板の中心に向かって湾曲していることを特徴とする請求項2乃至5のいずれか1項に記載のローラ型ワンウェイクラッチ。
- 前記側板は、三角形の各辺の中央部であって、前記外輪に対向する面に径方向に延在し、各辺の縁部に開口する溝部を備えていることを特徴とする請求項2乃至4のいずれか1項に記載のローラ型ワンウェイクラッチ。
- 前記溝部はプレス加工により形成されることを特徴とする請求項7に記載のローラ型ワンウェイクラッチ。
- 前記溝部は前記ポケットの最大径部に対向していることを特徴とする請求項7または8に記載のローラ型ワンウェイクラッチ。
- 前記側板は四角形の形状をしていることを特徴とする請求項1、6、8及び9のいずれか1項に記載のローラ型ワンウェイクラッチ。
- 内周にカム面を有する少なくとも一つのポケットが形成された外輪と、前記外輪に対して半径方向内径側に離間され、相対回転自在に同心状に配置された内輪と、前記ポケットに配置され、前記カム面に係合し、前記外輪と前記内輪との間でトルクを伝達するローラと、前記ポケット内で前記外輪と前記ローラとの間に配置され、前記ローラを前記カム面との係合方向に付勢するスプリングとを備えたローラ型ワンウェイクラッチに用いる側板であって、
前記外輪の軸方向一端面は円環状であり、前記側板は非円形の形状を備え、前記軸方向端面に当接するように固定され、前記側板が固定された状態で前記外輪の前記軸方向一端面の少なくとも一部が露出することを特徴とする側板。 - 前記側板は三角形の形状をしていることを特徴とする請求項11に記載の側板。
- 前記側板は四角形の形状をしていることを特徴とする請求項11に記載の側板。
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CN201480060774.1A CN105705817A (zh) | 2013-11-08 | 2014-06-18 | 滚子式单向离合器和侧板 |
US15/035,046 US10132368B2 (en) | 2013-11-08 | 2014-06-18 | Roller-type one-way clutch and side plate |
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JP2013232077A JP2015094376A (ja) | 2013-11-08 | 2013-11-08 | ローラ型ワンウェイクラッチ及び側板 |
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---|---|---|---|---|
JP2970096B2 (ja) | 1991-08-13 | 1999-11-02 | スズキ株式会社 | エンジンのスタータクラッチ機構潤滑装置 |
CN100453840C (zh) * | 2003-02-13 | 2009-01-21 | Nsk沃纳株式会社 | 旋转动作型单向超越离合器 |
JP5008539B2 (ja) | 2007-12-04 | 2012-08-22 | 株式会社エクセディ | 一方向クラッチ |
JP5008538B2 (ja) * | 2007-12-04 | 2012-08-22 | 株式会社エクセディ | 一方向クラッチ |
JP4773546B2 (ja) * | 2009-06-02 | 2011-09-14 | 株式会社エクセディ | 一方向クラッチ |
-
2013
- 2013-11-08 JP JP2013232077A patent/JP2015094376A/ja active Pending
-
2014
- 2014-06-18 WO PCT/JP2014/003263 patent/WO2015068318A1/ja active Application Filing
- 2014-06-18 CN CN201480060774.1A patent/CN105705817A/zh active Pending
- 2014-06-18 US US15/035,046 patent/US10132368B2/en not_active Expired - Fee Related
- 2014-06-24 TW TW103121764A patent/TW201518620A/zh unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6026822A (ja) * | 1983-07-20 | 1985-02-09 | Yamaha Motor Co Ltd | 一方向クラツチ |
JPS6458837A (en) * | 1987-08-31 | 1989-03-06 | Japan Automatic Transmission | Internal gear builtup body for automatic transmission |
JP5118550B2 (ja) * | 2008-05-09 | 2013-01-16 | Nskワーナー株式会社 | 二輪車スタータ用のローラ型ワンウェイクラッチ |
JP2010096327A (ja) * | 2008-10-20 | 2010-04-30 | Nsk Warner Kk | ローラ型ワンウェイクラッチ |
Also Published As
Publication number | Publication date |
---|---|
US10132368B2 (en) | 2018-11-20 |
US20160281800A1 (en) | 2016-09-29 |
CN105705817A (zh) | 2016-06-22 |
JP2015094376A (ja) | 2015-05-18 |
TW201518620A (zh) | 2015-05-16 |
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