JP2942482B2 - One-way clutch with integrated bearing - Google Patents
One-way clutch with integrated bearingInfo
- Publication number
- JP2942482B2 JP2942482B2 JP7264051A JP26405195A JP2942482B2 JP 2942482 B2 JP2942482 B2 JP 2942482B2 JP 7264051 A JP7264051 A JP 7264051A JP 26405195 A JP26405195 A JP 26405195A JP 2942482 B2 JP2942482 B2 JP 2942482B2
- Authority
- JP
- Japan
- Prior art keywords
- rolling element
- cam
- ring
- retainer
- inner ring
- 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 - Lifetime
Links
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
- 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
- F16D41/069—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by pivoting or rocking, e.g. sprags
- F16D41/07—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by pivoting or rocking, e.g. sprags between two cylindrical surfaces
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
- F16C41/001—Integrated brakes or clutches for stopping or coupling the relatively movable parts
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Sealing Of Bearings (AREA)
Description
【０００１】[0001]
【発明の属するの技術分野】本発明は、内輪と外輪との
間に複数の転動体と複数のカムとが前記内輪と外輪の幅
方向に並列して組み込まれている軸受一体型一方向クラ
ッチに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bearing-integrated one-way clutch in which a plurality of rolling elements and a plurality of cams are incorporated between an inner race and an outer race in parallel in the width direction of the inner race and the outer race. About.
【０００２】[0002]
【従来の技術】従来の、転がり軸受に一方向クラッチ機
構を組み込んだ軸受一体型一方向クラッチには、図５及
び図６に示す構造のものがある。これは、内輪１０と外
輪１１との間にこれらの幅方向の片側に偏った位置に複
数の転動体１２が配置されている。前記複数の転動体１
２は、合成樹脂製の保持器１３によって、周方向に等間
隔に保持された状態で、前記内輪１０と外輪１１との間
に転動自在に複数組み込まれている。2. Description of the Related Art Conventionally, a bearing-integrated one-way clutch in which a one-way clutch mechanism is incorporated in a rolling bearing has a structure shown in FIGS. In this configuration, a plurality of rolling elements 12 are arranged between an inner ring 10 and an outer ring 11 at positions deviated to one side in the width direction. The plurality of rolling elements 1
A plurality of rolls 2 are rotatably mounted between the inner ring 10 and the outer ring 11 while being held at equal intervals in a circumferential direction by a retainer 13 made of synthetic resin.
【０００３】また、前記内輪１０と外輪１１との間に
は、これらの幅方向に転動体１２と並列して複数のカム
１４が配置され、これらのカム１４は、保持器１３によ
って円周方向に互いに間隔をあけて複数保持されてい
る。カム１４と保持器１３との間にはスプリング１５が
配置されており、前記スプリング１５は、カム１４が内
輪１０の外周面と外輪１１の内周面とに常に接している
状態となるように付勢している。なお、内輪１０と外輪
１１の間の隙間はこれらの両側で、シール板１６，１７
によって塞がれている。A plurality of cams 14 are arranged between the inner race 10 and the outer race 11 in parallel with the rolling elements 12 in the width direction thereof. Are held at intervals from each other. A spring 15 is arranged between the cam 14 and the retainer 13 so that the spring 15 is always in contact with the outer peripheral surface of the inner race 10 and the inner peripheral surface of the outer race 11. It is energizing. The gap between the inner ring 10 and the outer ring 11 is on both sides of the seal plates 16 and 17.
Is closed by.
【０００４】そして、前記構成の軸受一体型一方向クラ
ッチは、内輪１０と外輪１１とが互いに空転する向きの
回転力が付加された場合には、カム１４にはスプリング
１５の付勢力に抗して内輪１０の外周面と外輪１１の内
周面からカム１４が離間する向きの摩擦力が作用し、内
輪１０と外輪１１とは自由に相対回転することができ
る。一方、前記と反対向きに回転力を付与された場合に
は、カム１４に作用する摩擦力は、カム１４を内輪１０
の外周面と外輪１１の外周面とに噛み込ませる方向に作
用し、内輪１０と外輪１１と間の回転は拘束され、両者
は一体に回転する構造となっている。In the bearing-integrated one-way clutch constructed as described above, the cam 14 resists the urging force of the spring 15 when a rotational force is applied in a direction in which the inner ring 10 and the outer ring 11 rotate idly with each other. Thus, a frictional force acts in a direction in which the cam 14 is separated from the outer peripheral surface of the inner ring 10 and the inner peripheral surface of the outer ring 11, and the inner ring 10 and the outer ring 11 can freely rotate relative to each other. On the other hand, when the rotational force is applied in the opposite direction, the frictional force acting on the cam 14 causes the cam 14 to
And the outer ring 11 is engaged with the outer ring 11 so that the rotation between the inner ring 10 and the outer ring 11 is restricted, and the inner ring 10 and the outer ring 11 rotate integrally.
【０００５】また、従来の軸受一体型一方向クラッチの
別の構造のものとして、カムとスプリングとを保持する
ための保持器を転動体を保持している保持器と別体に設
けたものがあり、図７及び図８は、そのような軸受一体
型一方向クラッチに組み込まれるカムとスプリングとを
組み込んだカム保持器の構造を示したものである。これ
らの図に示すように、カム保持器１３’には、カム１
４’とスプリング１５’とが組み込まれており、図示し
ていない内輪と外輪との間に、別体として転動体を保持
している転動体保持器とともに組み込まれ。前記カム保
持器１３’は金属製であり、プレス成形加工または切削
加工によって製作されている。Further, as another structure of the conventional one-way clutch integrated with a bearing, there is provided a retainer for holding a cam and a spring separately from a retainer for holding a rolling element. FIGS. 7 and 8 show the structure of a cam retainer incorporating a cam and a spring incorporated in such a bearing-integrated one-way clutch. As shown in these figures, the cam holder 13 'has a cam 1
4 ′ and a spring 15 ′ are incorporated, and are incorporated between an inner ring and an outer ring (not shown) together with a rolling element holder that holds the rolling elements as separate bodies. The cam retainer 13 'is made of metal, and is manufactured by press forming or cutting.
【０００６】[0006]
【発明が解決しようとする課題】前述した図５及び図６
に示す構造の従来の軸受一体型一方向クラッチは、転動
体１２とカム１４の両方を一つの保持器１３によって保
持しているため、転動体１２の配置等の制約から、カム
１４の数を増やすことができず、許容トルクを大きくす
ることができなかった。また、組立作業時に、カム１４
とスプリング１５とを転動体１２とともに保持器１３に
保持させた状態でこれらの部品を同時に内輪１０と外輪
１１との間に組み込む必要があるため、組立作業を自動
化することが困難であった。また、内輪１０や外輪１１
と保持器１３との間に形成される隙間が外部に開放され
ているため、転動体１２を潤滑しているグリースが外部
に流出したり、粉塵等の異物が外部から侵入する恐れも
あった。5 and 6 described above.
In the conventional bearing-integrated one-way clutch having the structure shown in FIG. 1, both the rolling elements 12 and the cams 14 are held by the single retainer 13. It could not be increased and the allowable torque could not be increased. Also, during the assembly work, the cam 14
It is necessary to incorporate these parts between the inner race 10 and the outer race 11 at the same time in a state where the spring 13 and the springs 15 are held together with the rolling elements 12 by the retainer 13, so that it has been difficult to automate the assembling work. Also, the inner ring 10 and the outer ring 11
Since the gap formed between the rolling element 12 and the retainer 13 is open to the outside, there is a possibility that the grease lubricating the rolling elements 12 may flow out or foreign matter such as dust may enter from the outside. .
【０００７】また、図７及び図８に示すものでは、カム
保持器１３’が金属製であり、プレス成形加工や切削加
工によって製作されているため、樹脂成形の場合と異な
り、形状面での制約や、加工後に、バリ取りなどの後処
理作業を必要とする問題があった。そこで、本発明は、
前述したような従来技術の問題点を解決し、組立が容易
で組み立て作業を自動化することが可能であり、しか
も、グリースの外部への流出を防止できるとともに防塵
効果が向上し、保守が容易で耐久性の高い軸受一体型一
方向クラッチを提供することを主な目的とする。7 and 8, the cam retainer 13 'is made of metal and is manufactured by press molding or cutting. Therefore, unlike the case of resin molding, the cam retainer 13' has a different shape. There were restrictions and problems that required post-processing operations such as deburring after processing. Therefore, the present invention
Solving the problems of the prior art as described above, it is easy to assemble, it is possible to automate the assembling work, and it is possible to prevent the grease from flowing out and to prevent dust.
It is a main object of the present invention to provide a bearing-integrated one-way clutch having improved effects, easy maintenance, and high durability.
【０００８】[0008]
【課題を解決するための手段】前記目的のため、本発明
の軸受一体型一方向クラッチは、内輪と外輪との間に複
数の転動体と複数のカムとが幅方向に並列して組み込ま
れている軸受一体型一方向クラッチにおいて、前記内輪
と外輪との間で複数の転動体を保持している環状の転動
体保持器と前記複数のカムを保持している環状のカム保
持器とがそれぞれ別体に内輪と外輪の間に幅方向に隣り
合わせて配置されている。In order to achieve the above-mentioned object, a bearing-integrated one-way clutch according to the present invention has a plurality of rolling elements and a plurality of cams arranged in parallel in a width direction between an inner ring and an outer ring. In the bearing-integrated one-way clutch, an annular rolling element retainer holding a plurality of rolling elements between the inner ring and the outer ring and an annular cam retainer holding the plurality of cams are provided. Each is separately arranged between the inner ring and the outer ring in the width direction.
【０００９】前記転動体保持器は、前記内輪と前記外輪
の少なくとも一方の側面と対向して内輪または外輪と転
動体保持器との隙間を覆うフランジ部を有するととも
に、内輪の外周面と転動体保持器との隙間を遮蔽するよ
うに転動体保持器の内周面に形成された内周側環状突起
と、外輪の内周面と転動体保持器との隙間を遮蔽するよ
うに転動体保持器の外周面に形成された外周側環状突起
を有している。 The rolling element retainer includes the inner ring and the outer ring.
With the inner or outer ring facing at least one side of the
With a flange that covers the gap with the moving body cage
The gap between the outer peripheral surface of the inner ring and the rolling element
Inner peripheral annular projection formed on the inner peripheral surface of the rolling element cage
And the gap between the inner peripheral surface of the outer ring and the rolling element cage
Outer peripheral side annular projection formed on the outer peripheral surface of the rolling element cage
have.
【００１０】前記カム保持器は、樹脂材料で一体成形さ
れ、前記転動体保持器と隣接する側の端部には前記内輪
の外周面または前記外輪の内周面によって半径方向に位
置決めされる半径方向位置決めフランジ部が形成されて
いるとともに、前記半径方向位置決めフランジ部が形成
されている端部と反対側の端部には、内輪の側面または
外輪の側面によって幅方向に位置決めされる幅方向位置
決めフランジ部が形成され、さらに、前記幅方向位置決
めフランジ部側には内輪と外輪との隙間を覆うシール板
が嵌着されている。 The cam retainer is integrally formed of a resin material.
The inner ring is provided at an end on the side adjacent to the rolling element retainer.
Position in the radial direction by the outer peripheral surface of the
The radial positioning flange part to be set is formed
And the radial positioning flange is formed
The end opposite to the end that is
Width position determined in the width direction by the side surface of the outer ring
The flange portion is formed, and the positioning in the width direction is further performed.
Seal plate on the flange side to cover the gap between the inner and outer rings
Is fitted.
【００１１】[0011]
【作用】本発明の軸受一体型一方向クラッチでは、カム
保持器を内輪と外輪との間に組み込む際に、樹脂材料で
一体成形されているため、その弾力性によって変形し容
易に組み込むことができる。そして、内輪と外輪との間
に組み込まれたカム保持器は、半径方向位置決めフラン
ジ部によって、内外輪間での半径方向の位置決めされる
とともに、幅方向位置決めフランジ部によって幅方向に
位置決めされる。また、樹脂材料自体が有する自己潤滑
性によって、カムの動作が円滑に行われる。さらに、前
記転動体保持器がフランジ部と内周側環状突起及び外周
側環状突起とを有するとともに、前記カム保持器の幅方
向位置決めフランジ部側に内輪と外輪との隙間を覆うシ
ール板が嵌着されているため、潤滑油の外部への流出が
防止されるとともに、内外輪間への外部からの粉塵等の
異物の侵入が防止される。In the bearing-integrated one-way clutch according to the present invention, when the cam retainer is incorporated between the inner ring and the outer ring, the cam retainer is integrally formed of a resin material. it can. The cam retainer incorporated between the inner ring and the outer ring is positioned in the radial direction between the inner and outer rings by the radial positioning flange, and is also positioned in the width direction by the width positioning flange. Further, the self-lubricating property of the resin material itself allows the cam to operate smoothly. Further, the rolling element retainer has a flange portion, an inner peripheral side annular protrusion and an outer peripheral side annular protrusion, and the width of the cam retainer is
Cover the gap between the inner ring and the outer ring
Since the lubricating plate is fitted, it is possible to prevent the lubricating oil from flowing out and to prevent foreign matter such as dust from entering between the inner and outer rings.
【００１２】[0012]
【実施例】以下、図面に基づいて本発明の実施例を説明
する。図１は、本発明の軸受一体型一方向クラッチ１の
一実施例を示す断面図、図２はその外観を示す側面図で
ある。これらの図に示すように、軸受一体型一方向クラ
ッチ１は、一般の転がり軸受と同様に、内輪２、外輪
３、及び両者の間に介在される複数の転動体４相互間の
間隔を一定に保持しておく環状の転動体保持器５を備え
ている。本実施例においては、軸受け部分は、転動体４
として鋼球が用いられており、玉軸受として構成されて
いる。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing an embodiment of a one-way clutch 1 with a bearing according to the present invention, and FIG. 2 is a side view showing its appearance. As shown in these figures, the bearing-integrated one-way clutch 1 has a fixed distance between the inner ring 2, the outer ring 3, and the plurality of rolling elements 4 interposed therebetween as in a general rolling bearing. Is provided with an annular rolling element holder 5 for holding the rolling element. In this embodiment, the bearing part is a rolling element 4
Is used as a ball bearing.
【００１３】前記転動体４とこれを保持している転動体
保持器５とは、内輪２及び外輪３の一方の端面側に偏っ
て配置されており、前記側面側と反対側には、複数のカ
ム６と前記カム６を保持している環状のカム保持器７と
が組み込まれている。The rolling element 4 and the rolling element retainer 5 holding the rolling element 4 are arranged so as to be biased toward one end face of the inner ring 2 and the outer ring 3. The cam 6 and an annular cam holder 7 holding the cam 6 are incorporated.
【００１４】図３は、軸受一体型一方向クラッチ１の構
造を詳細に示した部分拡大断面図であって、転動体４を
保持している転動体保持器５は、外輪３の一方の側面に
形成されている周溝３Ａ内に配置されて、外輪３と転動
体保持器５との隙間を覆っているフランジ部５Ａと、内
輪２の外周面に対向している内周側環状突起５Ｂと、外
輪３の内周面に対向している外周側環状突起５Ｃとを備
えている。前記フランジ部５Ａ、内周側環状突起５Ｂ、
及び、外周側環状突起５Ｃを設けていることによって、
軸受一体型一方向クラッチ１内部のグリースの保持と防
塵のためのラビリンス効果が得られる。FIG. 3 is a partially enlarged sectional view showing in detail a structure of the one-way clutch 1 integrated with a bearing. The rolling element retainer 5 holding the rolling element 4 is provided on one side surface of the outer ring 3. A flange portion 5A disposed in a circumferential groove 3A formed on the outer ring 3 and covering a gap between the outer ring 3 and the rolling element retainer 5, and an inner peripheral side annular projection 5B facing the outer peripheral surface of the inner ring 2 And an outer peripheral side annular projection 5 </ b> C facing the inner peripheral surface of the outer ring 3. The flange portion 5A, the inner peripheral side annular protrusion 5B,
And by providing the outer peripheral side annular projection 5C,
A labyrinth effect for retaining grease inside the one-way clutch 1 with a bearing and for preventing dust is obtained.
【００１５】一方、転動体４と隣接してカム６を保持し
ているカム保持器７は、樹脂によって一体成形されてい
るもので、図４に示すように、円周方向に等間隔でカム
６を保持するためのカム保持孔７Ａが複数設けられてい
る。また、前記カム保持器７は、転動体４と対向する側
に内輪２の外周面に向けて屈曲されている半径方向位置
決めフランジ部７Ｂを有しており、前記半径方向位置決
めフランジ部７Ｂの内周側の端面が内輪２の外周面によ
って半径方向に位置決めされる構造となっている。On the other hand, the cam holder 7 holding the cam 6 adjacent to the rolling element 4 is integrally formed of resin, and as shown in FIG. 6 are provided with a plurality of cam holding holes 7A. Further, the cam retainer 7 has a radial positioning flange portion 7B bent toward the outer peripheral surface of the inner race 2 on the side facing the rolling element 4, and the cam cage 7 has a radial positioning flange portion 7B. The peripheral end surface is positioned in the radial direction by the outer peripheral surface of the inner ring 2.
【００１６】また、カム保持器７は、半径方向位置決め
フランジ部７Ｂとは反対側に半径方向外側に向けて屈曲
されている幅方向位置決めフランジ部７Ｃを有してお
り、その外周側の側面が外輪３の前記周溝３Ａの形成さ
れている側面と反対側に形成されているシール板収容溝
３Ｂ内の側面によって位置決めされる構造となってい
る。また、前記シール板収容溝３Ｂに嵌着されているシ
ール板８によって、カム保持器７の幅方向位置決めフラ
ンジ部７Ｃ側の内輪２と外輪３との隙間が覆われてい
る。The cam retainer 7 has a width-direction positioning flange portion 7C which is bent radially outward on the side opposite to the radial-direction positioning flange portion 7B. The outer ring 3 has a structure in which the outer ring 3 is positioned by a side surface in the seal plate housing groove 3B formed on a side opposite to the side surface on which the peripheral groove 3A is formed. The gap between the inner ring 2 and the outer ring 3 on the side of the width direction positioning flange portion 7C of the cam retainer 7 is covered by the seal plate 8 fitted in the seal plate housing groove 3B.
【００１７】図４に示すように、カム６は、内輪２の外
周面と外輪３の内周面とにそれぞれ当接する内側楔面６
Ａと外側楔面６Ｂとを有し、中間部がカム保持器７のカ
ム保持孔７Ａによって保持されている。また、外側楔面
６Ｂの中央には、環状のスプリング９が嵌入されるスプ
リング装着溝６Ｃが形成されている。As shown in FIG. 4, the cam 6 has an inner wedge surface 6 which comes into contact with the outer peripheral surface of the inner race 2 and the inner peripheral surface of the outer race 3 respectively.
A and an outer wedge surface 6B, and an intermediate portion is held by a cam holding hole 7A of the cam holder 7. A spring mounting groove 6C into which the annular spring 9 is fitted is formed in the center of the outer wedge surface 6B.
【００１８】前記スプリング９は、カム６の内側楔面６
Ａ及び外側楔面６Ｂを常時内輪２の外周面と外輪３の内
周面とに押しつける向きのモーメントをカム６に付与し
ており、内輪２に外輪３に対して矢印イで示す左方向に
回転させるトルクを加えた場合には、各カム６は、スプ
リング９の付勢力に抗して内側楔面６Ａと外側楔面６Ｂ
が内輪２の外周面と外輪３の内周面からそれぞれ離れる
向きに回転されるため、内輪２は、外輪３に対して空転
することができる。The spring 9 is provided on the inner wedge surface 6 of the cam 6.
A and a moment are applied to the cam 6 so that the outer wedge surface 6B and the outer wedge surface 6B are constantly pressed against the outer peripheral surface of the inner ring 2 and the inner peripheral surface of the outer ring 3. When a torque for rotation is applied, each cam 6 has an inner wedge surface 6A and an outer wedge surface 6B against the urging force of the spring 9.
Are rotated away from the outer peripheral surface of the inner race 2 and the inner peripheral surface of the outer race 3, respectively, so that the inner race 2 can idle with respect to the outer race 3.
【００１９】一方、内輪２を外輪３に対して矢印ロで示
す右方向に回転しようとした場合には、カム６の内側楔
面６Ａと外側楔面６Ｂが、内輪２の外周面と外輪３の内
周面とをそれぞれ押しつける向きに回転されて大きな摩
擦力が作用し、外輪３に対する内輪２の回転が阻止さ
れ、両者は一体に回転する。On the other hand, when the inner ring 2 is to be rotated rightward with respect to the outer ring 3 as indicated by an arrow B, the inner wedge surface 6A and the outer wedge surface 6B of the cam 6 are connected to the outer peripheral surface of the inner ring 2 and the outer ring 3 The inner ring 2 is rotated in a direction of pressing against the inner peripheral surface thereof, and a large frictional force acts thereon, so that the rotation of the inner ring 2 with respect to the outer ring 3 is prevented, and both rotate integrally.
【００２０】前述した実施例では、転動体４として鋼球
を用いたものを示したが、円筒コロや円錐コロ等、他の
形状の転動体を用いることもできる。また、前記実施例
においては、カム保持器７に内輪２によって半径方向に
位置決めされる半径方向位置決めフランジ部７Ｂを設け
るとともに、外輪３によって幅方向に位置決めされる幅
方向位置決めフランジ部７Ｃを設けているが、半径方向
位置決めフランジ部７Ｂは、カム保持器７の半径方向外
側に屈曲させて、外輪３の内周面によって半径方向に位
置決めを行うようにし、また、幅方向位置決めフランジ
部７Ｃは、カム保持器７の半径方向中心側に屈曲させ
て、内輪２の端面によって幅方向位置決めフランジ部７
Ｃの側面を幅方向に位置決めを行うように構成してもよ
い。In the above-described embodiment, the use of steel balls as the rolling elements 4 has been described. However, rolling elements of other shapes such as cylindrical rollers and conical rollers may be used. Further, in the above embodiment, the cam retainer 7 is provided with the radial positioning flange portion 7B positioned in the radial direction by the inner ring 2 and the width direction positioning flange portion 7C positioned in the width direction by the outer ring 3 is provided. However, the radial positioning flange portion 7B is bent outward in the radial direction of the cam retainer 7 so that positioning is performed in the radial direction by the inner peripheral surface of the outer ring 3, and the width direction positioning flange portion 7C is The cam retainer 7 is bent toward the center in the radial direction, and the end face of the inner race 2 is used to position the widthwise positioning flange 7.
The side surface of C may be configured to be positioned in the width direction.
【００２１】また、前述した実施例においては、転動体
保持器５のフランジ部５Ａによって、外輪３と転動体保
持器５との隙間を覆うようにしたものを示しているが、
前記フランジ部５Ａは、内輪２側に屈曲させて形成し、
転動体保持器５と内輪２との隙間を覆うようにしてもよ
く、さらに、転動体保持器５と内輪２との隙間と外輪３
との隙間の両方を覆うように形成してもよい。In the embodiment described above, the gap between the outer race 3 and the rolling element holder 5 is covered by the flange portion 5A of the rolling element holder 5, but is shown.
The flange portion 5A is formed by being bent toward the inner ring 2 side,
The gap between the rolling element retainer 5 and the inner ring 2 may be covered, and the gap between the rolling element retainer 5 and the inner ring 2 and the outer ring 3 may be covered.
May be formed so as to cover both gaps.
【００２２】[0022]
【発明の効果】以上説明したように、本発明の軸受一体
型一方向クラッチによれば、転動体保持器とは独立した
部品として、鋼等の金属材料と比較して柔軟性の優れた
樹脂材料によって成形されたカム保持器を使用している
ため、内外輪間への組み込みが容易であるとともに、カ
ム保持器と転動体保持器とを別々に組み込むことができ
る。また、カム保持器に半径方向位置決めフランジ部と
幅方向位置決めフランジ部とを設けているため、カム保
持器が内外輪間で常に適正な位置に保持され、カム保持
器を移動しないように保持しておくためのストッパー等
を別途設ける必要がなく、部品点数を少なくすることが
できる。その結果、組立工程を容易に自動化することが
でき、また、製造コストを下げることができる。As described above, according to the bearing-integrated one-way clutch of the present invention, as a part independent of the rolling element retainer, a resin excellent in flexibility as compared with a metal material such as steel is used. Since the cam retainer formed of a material is used, the cam retainer and the rolling element retainer can be separately incorporated while being easily installed between the inner and outer rings. Further, since the cam retainer is provided with the radial positioning flange portion and the width direction positioning flange portion, the cam retainer is always held at an appropriate position between the inner and outer rings, and the cam retainer is held so as not to move. It is not necessary to separately provide a stopper or the like for keeping the number of parts, and the number of parts can be reduced. As a result, the assembly process can be easily automated, and the manufacturing cost can be reduced.
【００２３】また、転動体保持器とカム保持器とが別体
に設けられているため、転動体の配置等の制約を受けず
にカムの数を増やすことができ、許容トルクを大きくす
ることができるとともに、カム保持器が樹脂材料によっ
て成形されていることにより、その自己潤滑性によっ
て、カムの動作が円滑となり、摩耗を低減することがで
きるので耐久性を向上することができる。さらに、転動
体保持器にフランジ部を設け、内周面及び外周面にそれ
ぞれ内周側環状突起と外周側環状突起とを設けることに
よって、グリースの外部への流出を防止できるとともに
防塵効果が向上し、保守の間隔を長くすることができ
る。しかも、カム保持器の幅方向位置決めフランジ部側
に内輪と外輪との隙間を覆うシール板を嵌着したことに
よって、軸受一体型一方向クラッチ内部の全域にわたっ
てグリースの保持と防塵のためのラビリンス効果が得ら
れる。 Further, since the rolling element holder and the cam holder are provided separately, the number of cams can be increased without restriction on the arrangement of the rolling elements and the allowable torque can be increased. In addition to the fact that the cam retainer is formed of a resin material, the self-lubricating property makes the operation of the cam smooth and the wear can be reduced, so that the durability can be improved. Furthermore, by providing a flange portion on the rolling element retainer and providing an inner peripheral side annular projection and an outer peripheral side annular projection on the inner peripheral surface and the outer peripheral surface, respectively, it is possible to prevent grease from flowing out and improve dustproof effect. In addition, maintenance intervals can be extended. Moreover, the side of the cam cage in the width direction positioning flange section
A seal plate that covers the gap between the inner ring and the outer ring
Therefore, the whole area inside the bearing-integrated one-way clutch is
A labyrinth effect for grease retention and dust prevention.
It is.
【図１】 本発明の軸受一体型一方向クラッチの一実施
例を示す部分断面図である。FIG. 1 is a partial sectional view showing one embodiment of a bearing-integrated one-way clutch of the present invention.
【図２】 本発明の軸受一体型一方向クラッチの側面図
である。FIG. 2 is a side view of the bearing-integrated one-way clutch of the present invention.
【図３】 本発明の軸受一体型一方向クラッチの拡大部
分断面図である。FIG. 3 is an enlarged partial sectional view of the bearing-integrated one-way clutch of the present invention.
【図４】 本発明の軸受一体型一方向クラッチの動作説
明図である。FIG. 4 is an operation explanatory view of the bearing-integrated one-way clutch of the present invention.
【図５】 従来の軸受一体型一方向クラッチの一例を示
す断面図である。FIG. 5 is a cross-sectional view showing an example of a conventional one-way clutch integrated with a bearing.
【図６】 従来の軸受一体型一方向クラッチの一例を示
す側面図である。FIG. 6 is a side view showing an example of a conventional one-way clutch integrated with a bearing.
【図７】 従来の他の構造の軸受一体型一方向クラッチ
に組み込まれるカム保持器の構造を示す断面図である。FIG. 7 is a sectional view showing a structure of a cam retainer incorporated in a bearing-integrated one-way clutch having another conventional structure.
【図８】 従来の他の構造の軸受一体型一方向クラッチ
に組み込まれるカム保持器の構造を示す側面図である。FIG. 8 is a side view showing the structure of a cam retainer incorporated in a bearing-integrated one-way clutch having another conventional structure.
１ 軸受け一体型一方向クラッチ ２ 内輪 ３ 外輪 ３Ａ 周溝 ３Ｂ シール板収容溝 ４ 転動
体 ５ 転動体保持器 ５Ａ フラ
ンジ部 ５Ｂ 外周側環状突起 ５Ｃ 内周
側環状突起 ６ カム ６Ａ 内側
楔面 ６Ｂ 外側楔面 ６Ｃ スプ
リング装着溝 ７ カム保持器 ７Ａ カム
保持孔 ７Ｂ 半径方向位置決めフランジ部 ７Ｃ 幅方
向位置決めフランジ部 ８ シール板 ９ スプ
リング DESCRIPTION OF SYMBOLS 1 One-way clutch integrated with a bearing 2 Inner ring 3 Outer ring 3A Peripheral groove 3B Seal plate accommodation groove 4 Rolling element 5 Rolling element retainer 5A Flange part 5B Outer annular projection 5C Inner annular projection 6 Cam 6A Inner wedge surface 6B Outer wedge Surface 6C Spring mounting groove 7 Cam retainer 7A cam
Holding hole 7B Radial positioning flange 7C width
Positioning flange 8 seal plate 9 sp
ring
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平３−33519（ＪＰ，Ａ) 特開 昭55−20923（ＪＰ，Ａ) 特開 昭54−109557（ＪＰ，Ａ) 実開 昭63−152927（ＪＰ，Ｕ) 実開 昭63−141333（ＪＰ，Ｕ) 実開 昭63−129725（ＪＰ，Ｕ) 実開 昭61−133124（ＪＰ，Ｕ) 実開 平３−48125（ＪＰ，Ｕ) 特公 昭47−27079（ＪＰ，Ｂ１) 実公 昭40−31607（ＪＰ，Ｙ１) (58)調査した分野(Int.Cl.6，ＤＢ名) F16D 41/07 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-33519 (JP, A) JP-A-55-20923 (JP, A) JP-A-54-109557 (JP, A) 152927 (JP, U) Fully open 1988-141333 (JP, U) Fully open 1988-129725 (JP, U) Fully open 1986-133124 (JP, U) Fully open, 3-48125 (JP, U) JP-B-47-27079 (JP, B1) JP-B-40-31607 (JP, Y1) (58) Fields investigated (Int. Cl. 6 , DB name) F16D 41/07
Claims (1)
のカムとが幅方向に並列して組み込まれ、前記内輪と外
輪との間で複数の転動体を保持している環状の転動体保
持器と前記複数のカムを保持している環状のカム保持器
とがそれぞれ別体に内輪と外輪の間に幅方向に隣り合わ
せて配置されている軸受一体型一方向クラッチにおい
て、 前記転動体保持器は、前記内輪と前記外輪の少なくとも
一方の側面と対向して内輪または外輪と転動体保持器と
の隙間を覆うフランジ部を有するとともに、内輪の外周
面と転動体保持器との隙間を遮蔽するように転動体保持
器の内周面に形成された内周側環状突起と、外輪の内周
面と転動体保持器との隙間を遮蔽するように転動体保持
器の外周面に形成された外周側環状突起を有しており、 前記カム保持器は、樹脂材料で一体成形され、前記転動
体保持器と隣接する側の端部には前記内輪の外周面また
は前記外輪の内周面によって半径方向に位置決めされる
半径方向位置決めフランジ部が形成されているととも
に、前記半径方向位置決めフランジ部が形成されている
端部と反対側の端部には内輪の側面または外輪の側面に
よって幅方向に位置決めされる幅方向位置決めフランジ
部が形成され、さらに、前記幅方向位置決めフランジ部
側には内輪と外輪との隙間を覆うシール板が嵌着されて
いることを特徴とする軸受一体型一方向クラッチ。A plurality of rolling elements and a plurality of rolling elements are provided between an inner ring and an outer ring.
And the cam in parallel in the width directionIncorporated,The inner ring and the outer
An annular rolling element holder that holds a plurality of rolling elements between the wheels
An annular cam retainer holding the retainer and the plurality of cams
Are separately adjacent to each other in the width direction between the inner ring and the outer ring
Let it be arrangedOne-way clutch with integrated bearing
hand, The rolling element retainer includes at least the inner ring and the outer ring.
The inner ring or outer ring and the rolling element cage
Of the inner ring
Rolling element holding so as to shield the gap between the surface and the rolling element holder
Inner peripheral side annular projection formed on the inner peripheral surface of the container, and the inner periphery of the outer ring
Rolling element holding so as to shield the gap between the surface and the rolling element holder
It has an outer peripheral side annular projection formed on the outer peripheral surface of the container, The cam retainer is integrally formed of a resin material,
At the end adjacent to the body retainer, the outer peripheral surface of the inner ring or
Is positioned radially by the inner peripheral surface of the outer ring
With the radial positioning flange part formed
The radial positioning flange portion is formed
At the end opposite to the end, the side of the inner ring or the side of the outer ring
Therefore, the width direction positioning flange positioned in the width direction
Part formedAnd the width direction positioning flange portion
On the side, a seal plate that covers the gap between the inner ring and the outer ring is fitted
A one-way clutch integrated with a bearing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7264051A JP2942482B2 (en) | 1995-10-12 | 1995-10-12 | One-way clutch with integrated bearing |
| KR1019960034028A KR100288609B1 (en) | 1995-10-12 | 1996-08-17 | One-Way Clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7264051A JP2942482B2 (en) | 1995-10-12 | 1995-10-12 | One-way clutch with integrated bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09105430A JPH09105430A (en) | 1997-04-22 |
| JP2942482B2 true JP2942482B2 (en) | 1999-08-30 |
Family
ID=17397868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7264051A Expired - Lifetime JP2942482B2 (en) | 1995-10-12 | 1995-10-12 | One-way clutch with integrated bearing |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2942482B2 (en) |
| KR (1) | KR100288609B1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11218144A (en) | 1997-11-17 | 1999-08-10 | Nippon Seiko Kk | Rolling bearing with built-in one-way clutch |
| JP2003090360A (en) * | 2001-09-17 | 2003-03-28 | Nsk Warner Kk | One-way clutch assembly |
| JP2006292050A (en) * | 2005-04-08 | 2006-10-26 | Ntn Corp | Pulley with built-in clutch |
| JP5974330B2 (en) * | 2012-04-24 | 2016-08-23 | 株式会社山寺精密 | Cam follower |
-
1995
- 1995-10-12 JP JP7264051A patent/JP2942482B2/en not_active Expired - Lifetime
-
1996
- 1996-08-17 KR KR1019960034028A patent/KR100288609B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR100288609B1 (en) | 2001-10-22 |
| KR970021820A (en) | 1997-05-28 |
| JPH09105430A (en) | 1997-04-22 |
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