JP2006010087A - Assembling method of one-way clutch - Google Patents

Assembling method of one-way clutch Download PDF

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Publication number
JP2006010087A
JP2006010087A JP2005239869A JP2005239869A JP2006010087A JP 2006010087 A JP2006010087 A JP 2006010087A JP 2005239869 A JP2005239869 A JP 2005239869A JP 2005239869 A JP2005239869 A JP 2005239869A JP 2006010087 A JP2006010087 A JP 2006010087A
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Japan
Prior art keywords
sprag
retainer
spring
way clutch
holding hole
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Pending
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JP2005239869A
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Japanese (ja)
Inventor
Kozaburo Igari
康三郎 猪狩
Yoshio Kinoshita
芳男 木下
Yasuhide Takasu
保秀 高須
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NSK Warner KK
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NSK Warner KK
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Priority to JP2005239869A priority Critical patent/JP2006010087A/en
Publication of JP2006010087A publication Critical patent/JP2006010087A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To simplify the assembling of an one-way clutch comprising a retainer and a spring receiving groove formed on a sprag. <P>SOLUTION: This one-way clutch 40 comprises the retainer 45 for allowing the sprag 43 engaged between an outer ring 41 and an inner ring 42 to be retained in a holding hole 44 and located between the outer ring and the inner ring. A spring 46 is held by the retainer 45 in advance, and the sprag 43 is pressed to the holding hole 44 from an inner side of the retainer 45 in a state that a bottom of the spring receiving groove 50 is approximately in parallel with the radial direction of the retainer 45. As a short slant 62 of the bottom of the spring receiving groove 60 is pressed by the spring 46, the sprag 43 is stably placed in the holding hole 44, and can easily be mounted in the holding hole 44 of the retainer 45. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、例えば、自動車、一般産業機械等の駆動軸と従動軸との間に組み込まれ、駆動軸の一方向回転の動力のみ従動軸に伝達する一方向クラッチの技術分野に属する。   The present invention belongs to the technical field of a one-way clutch that is incorporated between a drive shaft and a driven shaft of, for example, an automobile or a general industrial machine, and transmits only the unidirectional rotation power of the drive shaft to the driven shaft.

従来、一方向クラッチは、図5乃至図7に示すように、外輪21と内輪22との間に噛み込まれるスプラグ23と、このスプラグ23を保持する環状のワイヤケージ24と、スプラグ23に形成されたスプリング係合溝25に係合してワイヤケージ24との間でスプラグ23を挟持するリング状のスプリング26と、軸方向の両側でスプラグ23を挟持する2枚のリング状の側板27,28とを具えている。   Conventionally, as shown in FIGS. 5 to 7, the one-way clutch is formed in a sprag 23 that is bitten between the outer ring 21 and the inner ring 22, an annular wire cage 24 that holds the sprag 23, and the sprag 23. A ring-shaped spring 26 that engages with the formed spring engagement groove 25 and sandwiches the sprag 23 with the wire cage 24, and two ring-shaped side plates 27 that sandwich the sprag 23 on both sides in the axial direction, 28.

ワイヤケージ24は、開口部が外輪21と内輪22の軸方向の両側に交互に向くようにワイヤを屈曲して形成されている。側板27,28の内周には、突片29が内向きに複数突設されている。この突片29をワイヤケージ24に係合させることによって、側板27,28がワイヤケージ24に組み込まれる。   The wire cage 24 is formed by bending a wire so that the openings are alternately directed to both sides of the outer ring 21 and the inner ring 22 in the axial direction. On the inner periphery of the side plates 27 and 28, a plurality of projecting pieces 29 project inward. By engaging the protruding piece 29 with the wire cage 24, the side plates 27 and 28 are incorporated into the wire cage 24.

側板27の外周には、放射状に突出した弾性突片30,31が複数形成されている。この弾性突片30,31を外輪の側面に外輪と同軸的に形成された溝33に挿入させると、屈曲した弾性突片30,31の弾力によってワイヤケージ24が外輪21に対して位置決めされる。   On the outer periphery of the side plate 27, a plurality of elastic projecting pieces 30, 31 projecting radially are formed. When the elastic protrusions 30 and 31 are inserted into a groove 33 formed coaxially with the outer ring on the side surface of the outer ring, the wire cage 24 is positioned with respect to the outer ring 21 by the elasticity of the bent elastic protrusions 30 and 31. .

ところが、このような一方向クラッチ20は、次の問題点を有している。
(1)部品点数が多く、組立に手間を要する。
(2)屈曲した弾性突片30,31を形成しなければならない。
However, such a one-way clutch 20 has the following problems.
(1) The number of parts is large and it takes time to assemble.
(2) The bent elastic protrusions 30 and 31 must be formed.

本発明は、スプリング受け溝が形成されたスプラグと、前記スプラグを保持する保持孔が形成されたリテーナと、前記スプラグを前記リテーナに対して付勢するスプリングからなる一方向クラッチの組立方法であって、前記リテーナに前記スプリングを保持させ、前記スプリング受け溝の底を前記リテーナの径方向とほぼ平行にした状態で、前記リテーナの保持孔に対して前記リテーナの内側から前記スプラグを押し出し、前記スプラグの前記スプリング受け溝を前記スプリングに当接させ該スプリングの弾性力によって前記スプラグを回転させ、該スプラグを前記リテーナの保持孔に保持させることを特徴とする一方向クラッチの組立方法によって、前記の課題を解決した。   The present invention is an assembling method of a one-way clutch comprising a sprag formed with a spring receiving groove, a retainer formed with a holding hole for holding the sprag, and a spring for urging the sprag against the retainer. The retainer holds the spring, and in a state where the bottom of the spring receiving groove is substantially parallel to the radial direction of the retainer, the sprag is pushed out from the inside of the retainer to the retainer holding hole, According to the assembly method of the one-way clutch, the spring receiving groove of the sprag is brought into contact with the spring, the sprag is rotated by the elastic force of the spring, and the sprag is held in the holding hole of the retainer. Solved the problem.

本発明の一方向クラッチの組立方法によれば、スプリングの弾性力を利用して、リテーナの保持孔にスプラグを簡単に装着することができる。   According to the method of assembling a one-way clutch of the present invention, the sprag can be easily attached to the retaining hole of the retainer using the elastic force of the spring.

以下、本発明の実施の形態を図1乃至図4に基づいて説明する。
一方向クラッチ40は、外輪41と、内輪42と、外輪41と内輪42との間に噛み込まれるリング状のスプラグ43と、このスプラグ43を保持する保持孔44が形成されたリテーナ45と、スプラグ43を保持孔44に押さえ付けるリング状のコイルスプリング46とを具えている。
Hereinafter, embodiments of the present invention will be described with reference to FIGS.
The one-way clutch 40 includes an outer ring 41, an inner ring 42, a ring-shaped sprag 43 that is engaged between the outer ring 41 and the inner ring 42, and a retainer 45 in which a holding hole 44 that holds the sprag 43 is formed, A ring-shaped coil spring 46 that presses the sprag 43 against the holding hole 44 is provided.

外輪41の側部には外輪41と同軸的な座ぐり孔50が形成されている。
スプラグ43には、コイルスプリング46が係合するスプリング受け溝60が形成されている。
スプリング受け溝60の底は山形状(図3参照)に形成されている。リテーナ45は薄い鉄板製であり、フランジ47と筒部48とで構成されている。筒部48には保持孔44が形成されている。
フランジ47は直径Aが直径Bより小さい長円形に形成されている。フランジ47には、フランジ47の径方向外方に開口した半円形状の切欠49が等間隔に4つ形成されている。
なお、上記4つの切欠49は一例を示したものであって、その数は1つでもよく、複数個が不等間隔で形成されていてもよいことは言うまでもない。
A counterbore 50 coaxial with the outer ring 41 is formed on the side of the outer ring 41.
The sprag 43 is formed with a spring receiving groove 60 with which the coil spring 46 is engaged.
The bottom of the spring receiving groove 60 is formed in a mountain shape (see FIG. 3). The retainer 45 is made of a thin iron plate and includes a flange 47 and a cylindrical portion 48. A holding hole 44 is formed in the cylindrical portion 48.
The flange 47 is formed in an oval shape having a diameter A smaller than the diameter B. The flange 47 is formed with four semicircular cutouts 49 that are opened radially outward of the flange 47 at equal intervals.
The four cutouts 49 are merely examples, and it goes without saying that the number of the cutouts 49 may be one, and a plurality may be formed at unequal intervals.

次に一方向クラッチの組立順序を説明する。
先ず、予めスプリング46が装着されたリテーナ45にスプラグ43を装着する。
リテーナ45にスプラグ43を装着するには、スプリング受け溝60の底(図3参照)をリテーナ45の径方向とほぼ平行にした状態でリテーナ45の内側から保持孔44に挿入する。その後、円弧部61を工具或いは指先で支持する。スプリング受け溝60の底の短い斜面62がスプリング46によって押されるため、スプラグ43は、図4において矢印C方向に回転させられて、保持孔44に落ち着く。
Next, the assembly order of the one-way clutch will be described.
First, the sprag 43 is attached to the retainer 45 to which the spring 46 is previously attached.
In order to attach the sprag 43 to the retainer 45, the bottom of the spring receiving groove 60 (see FIG. 3) is inserted into the holding hole 44 from the inside of the retainer 45 in a state of being substantially parallel to the radial direction of the retainer 45. Thereafter, the arc portion 61 is supported by a tool or a fingertip. Since the short slope 62 at the bottom of the spring receiving groove 60 is pushed by the spring 46, the sprag 43 is rotated in the direction of arrow C in FIG. 4 and settles in the holding hole 44.

なお、図4において、スプリング受け溝60の底に沿った方向のスプラグ43の直径Dと、スプリング受け溝60と交差する方向のスプラグ43の直径Eと、リテーナ45の周方向の保持孔44の開口長さFとの寸法関係は、(D>F>E)の関係にある。
リテーナ45に装着されたスプラグ43は、スプリング46によって脱落が防止される。複数のスプラグ43が装着されたリテーナ45は、一方向クラッチ40の組立中において、1つの部品として取り扱われる。
In FIG. 4, the diameter D of the sprag 43 in the direction along the bottom of the spring receiving groove 60, the diameter E of the sprag 43 in the direction intersecting the spring receiving groove 60, and the circumferential holding hole 44 of the retainer 45. The dimensional relationship with the opening length F is (D>F> E).
The sprag 43 attached to the retainer 45 is prevented from falling off by the spring 46. The retainer 45 to which the plurality of sprags 43 are attached is handled as one part during assembly of the one-way clutch 40.

その後、リテーナ45の内側に内輪42が位置し、外側に外輪41が位置するように組み込まれて、一方向クラッチ40の組み込みが完了する。
リテーナ45の外側に外輪41が配置されるとき、フランジ47を座ぐり孔50に押し込むと、フランジ47は長径Bの部分で座ぐり孔50の内周51を押圧してリテーナ45を外輪41と一体化させる。
なお、フランジ47は、切欠49によって弾性反発力が生じるようになっており、これによって座ぐり孔50の内周51を押圧する。
Thereafter, the inner ring 42 is positioned inside the retainer 45 and the outer ring 41 is positioned outside, and the one-way clutch 40 is completely assembled.
When the outer ring 41 is disposed outside the retainer 45, when the flange 47 is pushed into the counterbore hole 50, the flange 47 presses the inner periphery 51 of the counterbore hole 50 at the portion of the long diameter B, thereby causing the retainer 45 to move with the outer ring 41. Integrate.
The flange 47 is configured to generate an elastic repulsion force by the notch 49, and thereby presses the inner periphery 51 of the counterbore 50.

なお、切欠49が形成されていなくても、長径Bの部分が座ぐり孔に押し込まれたとき、フランジ47に、弾性反発力が、或る程度は生じる。このため、切欠49は必ずしも必要としない。
この切欠49は、一方向クラッチ40を駆動軸と従動軸(図示省略)の間に組み込む際に、或いは組み込まれた後に、発生する塵埃等を取り除く孔として使用することができるとともに、油注入孔としても使用することができる。
Even if the notch 49 is not formed, when the portion of the long diameter B is pushed into the counterbore, an elastic repulsive force is generated in the flange 47 to some extent. For this reason, the notch 49 is not necessarily required.
The notch 49 can be used as a hole for removing dust or the like generated when the one-way clutch 40 is assembled between the drive shaft and the driven shaft (not shown) or after it is assembled, and the oil injection hole. Can also be used.

一方向クラッチ40が駆動軸と従動軸との間に組み込まれた後に、図4において、スプラグ43に矢印C方向の回転力が加わると、スプラグ43は、外輪41と内輪42との間に噛み込まれて、駆動軸の回転力を従動軸に伝達する。スプラグ43に矢印Cと反対方向の回転力が加わると、スプラグ43は、外輪41と内輪42との間に噛み込まれることがなく、駆動軸と従動軸との間での回転力の伝達は行なわれない。   After the one-way clutch 40 is assembled between the drive shaft and the driven shaft, when the rotational force in the direction of arrow C is applied to the sprag 43 in FIG. 4, the sprag 43 is engaged between the outer ring 41 and the inner ring 42. The rotational force of the drive shaft is transmitted to the driven shaft. When a rotational force in the direction opposite to the arrow C is applied to the sprag 43, the sprag 43 is not caught between the outer ring 41 and the inner ring 42, and the transmission of the rotational force between the drive shaft and the driven shaft is not performed. Not done.

本発明の組立方法で組み立てられた一方向クラッチの概略正面図。The schematic front view of the one way clutch assembled by the assembly method of this invention. 図1の2−2矢視断面図。FIG. 2 is a cross-sectional view taken along arrow 2-2 in FIG. 1. リテーナにスプラグを組み込む説明図。Explanatory drawing which incorporates a sprag in a retainer. リテーナにスプラグを組み込む説明図。Explanatory drawing which incorporates a sprag in a retainer. 従来の一方向クラッチの正面図。The front view of the conventional one-way clutch. 図5の6−6矢視断面図。6-6 sectional drawing of FIG. 図5の一方向クラッチのワイヤケージと一方の側板の部分斜視図。The partial perspective view of the wire cage and one side plate of the one-way clutch of FIG.

符号の説明Explanation of symbols

40:一方向クラッチ
41:内輪
42:外輪
43:スプラグ
44:保持孔
45:リテーナ
46:スプリング
60:スプリング受け溝
40: one-way clutch 41: inner ring 42: outer ring 43: sprag 44: holding hole 45: retainer 46: spring 60: spring receiving groove

Claims (1)

スプリング受け溝が形成されたスプラグと、前記スプラグを保持する保持孔が形成されたリテーナと、前記スプラグを前記リテーナに対して付勢するスプリングからなる一方向クラッチの組立方法であって、
前記リテーナに前記スプリングを保持させ、前記スプリング受け溝の底を前記リテーナの径方向とほぼ平行にした状態で、前記リテーナの保持孔に対して前記リテーナの内側から前記スプラグを押し出し、
前記スプラグの前記スプリング受け溝を前記スプリングに当接させ該スプリングの弾性力によって前記スプラグを回転させ、該スプラグを前記リテーナの保持孔に保持させることを特徴とする、
一方向クラッチの組立方法。
An assembly method of a one-way clutch comprising a sprag formed with a spring receiving groove, a retainer formed with a holding hole for holding the sprag, and a spring for urging the sprag against the retainer,
The retainer holds the spring, and with the bottom of the spring receiving groove substantially parallel to the radial direction of the retainer, the sprag is pushed out from the inside of the retainer with respect to the retainer holding hole,
The spring receiving groove of the sprag is brought into contact with the spring, the sprag is rotated by the elastic force of the spring, and the sprag is held in the holding hole of the retainer.
One-way clutch assembly method.
JP2005239869A 2005-08-22 2005-08-22 Assembling method of one-way clutch Pending JP2006010087A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005239869A JP2006010087A (en) 2005-08-22 2005-08-22 Assembling method of one-way clutch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005239869A JP2006010087A (en) 2005-08-22 2005-08-22 Assembling method of one-way clutch

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP17977996A Division JP3741782B2 (en) 1996-06-21 1996-06-21 One-way clutch

Publications (1)

Publication Number Publication Date
JP2006010087A true JP2006010087A (en) 2006-01-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005239869A Pending JP2006010087A (en) 2005-08-22 2005-08-22 Assembling method of one-way clutch

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Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8450024B2 (en) 2009-12-01 2013-05-28 Toyota Jidosha Kabushiki Kaisha Fuel cell having a separator with a folded back part

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8450024B2 (en) 2009-12-01 2013-05-28 Toyota Jidosha Kabushiki Kaisha Fuel cell having a separator with a folded back part

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