JP4541178B2 - Rotation transmission device - Google Patents

Rotation transmission device Download PDF

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JP4541178B2
JP4541178B2 JP2005039006A JP2005039006A JP4541178B2 JP 4541178 B2 JP4541178 B2 JP 4541178B2 JP 2005039006 A JP2005039006 A JP 2005039006A JP 2005039006 A JP2005039006 A JP 2005039006A JP 4541178 B2 JP4541178 B2 JP 4541178B2
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electromagnet
outer ring
recess
flange
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JP2006226349A (en
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光司 佐藤
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NTN Corp
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Description

この発明は、動力の伝達経路上において、動力の伝達と遮断の切換えに用いられる回転伝達装置に関するものである。   The present invention relates to a rotation transmission device used for switching between power transmission and cutoff on a power transmission path.

ＦＲベースの４輪駆動車において、補助駆動輪としての前輪に駆動力の伝達と遮断とを行なう回転伝達装置として、特許文献１に記載されたものが従来から知られている。   In an FR-based four-wheel drive vehicle, a rotation transmission device described in Patent Document 1 is conventionally known as a rotation transmission device that transmits and blocks driving force to a front wheel as an auxiliary driving wheel.

上記回転伝達装置は、プロペラシャフトに連結される外輪とディファレンシャルのピニオンシャフトに連結される内輪間に２方向クラッチを組込み、その２方向クラッチに並設した電磁クラッチによって２方向クラッチの係合および係合解除を制御し、上記２方向クラッチの係合により外輪と内輪とを結合して、外輪の回転を内輪に伝えるようにしている。   The above rotation transmission device incorporates a two-way clutch between an outer ring connected to a propeller shaft and an inner ring connected to a differential pinion shaft, and the engagement and engagement of the two-way clutch by an electromagnetic clutch arranged in parallel with the two-way clutch. The engagement / disengagement is controlled, and the outer ring and the inner ring are coupled by the engagement of the two-way clutch to transmit the rotation of the outer ring to the inner ring.

ここで、２方向クラッチは、外輪の内周に円筒面を設け、内輪の外周には上記円筒面との間で周方向の両端が狭小のくさび状空間を形成するカム面を設け、そのカム面と円筒面との間にローラを組込み、そのローラを保持する保持器と内輪の相対回転によりローラを円筒面およびカム面に係合させるようにしている。また、内輪と保持器との間にスイッチばねを組込み、そのスイッチばねによってローラが円筒面およびカム面に対して係合解除される中立位置に保持器を弾性保持している。   Here, the two-way clutch is provided with a cylindrical surface on the inner periphery of the outer ring, and a cam surface is formed on the outer periphery of the inner ring so as to form a wedge-shaped space whose both ends in the circumferential direction are narrow with the cylindrical surface. A roller is incorporated between the surface and the cylindrical surface, and the roller is engaged with the cylindrical surface and the cam surface by the relative rotation of the cage that holds the roller and the inner ring. Further, a switch spring is incorporated between the inner ring and the cage, and the cage is elastically held at a neutral position where the roller is disengaged from the cylindrical surface and the cam surface by the switch spring.

一方、電磁クラッチは、保持器に回り止めされ、かつ軸方向に移動可能に支持されたアーマチュアと、外輪に回り止めされてアーマチュアと軸方向で対向するロータと、そのロータに対向配置された電磁石とを有し、上記電磁石の電磁コイルに対する通電によりロータにアーマチュアを吸着し、外輪と共に回転するアーマチュアと内輪の相対回転によりローラを円筒面およびカム面に係合させるようにしている。   On the other hand, the electromagnetic clutch is an armature that is supported by the cage and is supported so as to be movable in the axial direction, a rotor that is supported by the outer ring and that is opposed to the armature in the axial direction, and an electromagnet disposed opposite to the rotor. The armature is attracted to the rotor by energizing the electromagnetic coil of the electromagnet, and the roller is engaged with the cylindrical surface and the cam surface by the relative rotation of the armature and the inner ring rotating together with the outer ring.

電磁クラッチによって２方向クラッチを制御する上記のような回転伝達装置においては、ハウジングから成る静止部材に電磁石を取付けるようにしているが、各部品の加工精度によってその取付けが不安定になる可能性があり、上記電磁石が軸方向に移動し得る不安定な取付けになると、スイッチばねを撓ませる大きさのスイッチトルクを保持器に負荷することができず、２方向クラッチを確実に作動させることができない場合が生じる。   In the above-described rotation transmission device that controls a two-way clutch by an electromagnetic clutch, an electromagnet is attached to a stationary member made of a housing, but the attachment may become unstable depending on the processing accuracy of each part. Yes, if the electromagnet is unstablely mounted so that it can move in the axial direction, the cage cannot be loaded with a switch torque large enough to bend the switch spring, and the two-way clutch cannot be operated reliably. Cases arise.

また、車体の振動等によって電磁石がガタつき、異音を発生させるという不都合が発生する。   In addition, there is a disadvantage that the electromagnet rattles due to the vibration of the vehicle body and generates abnormal noise.

そのような不都合を解消するため、上記特許文献１に記載された回転伝達装置においては、電磁石の電磁コイルを支持するコアにフランジを設け、静止部材には上記フランジが嵌合される凹部を形成し、この凹部の内周に係合溝を設け、その係合溝に取付けた止め輪とフランジとの間に弾性部材を組込んでフランジを凹部の閉塞端面に圧接させるようにしている。
特開２００３−１９１７６９号公報 In order to eliminate such an inconvenience, in the rotation transmission device described in Patent Document 1, a flange is provided on a core that supports an electromagnetic coil of an electromagnet, and a recess is formed on a stationary member in which the flange is fitted. Then, an engagement groove is provided on the inner periphery of the recess, and an elastic member is incorporated between the retaining ring attached to the engagement groove and the flange so that the flange is pressed against the closed end surface of the recess.
JP 2003-191769 A

ところで、上記従来の回転伝達装置においては、上記のようにコアに設けられたフランジと止め輪との間に弾性部材を組込んで電磁石を軸方向に位置決めする構成であるため、弾性部材の設定荷重としては、電磁石の軸方向への振動Ｇと電磁石の自重Ｗの積（Ｇ×Ｗ）で得られる荷重Ｆ1と、電磁クラッチのオン時に電磁石がロータに引き付けられる荷重Ｆ2の総和（Ｆ1＋Ｆ2）以上に設定する必要があるため、ばね荷重をある程度大きく設定する必要がある。このため、係合溝に対する止め輪の取付けに際し、弾性部材を比較的大きな力で弾性変形させる必要が生じ、止め輪の取付けに手間がかかると共に、弾性部材としては電磁石のコアの外径より大きい大径のものが必要となり、コストも高いという問題があった。 By the way, in the conventional rotation transmission device, since the elastic member is incorporated between the flange provided on the core and the retaining ring as described above, the electromagnet is positioned in the axial direction. As the load, the sum of the load F 1 obtained by the product (G × W) of the vibration G in the axial direction of the electromagnet and the own weight W of the electromagnet, and the load F 2 that attracts the electromagnet to the rotor when the electromagnetic clutch is on (F 1 + F 2 ) or more, it is necessary to set the spring load to some extent. For this reason, when attaching the retaining ring to the engaging groove, it is necessary to elastically deform the elastic member with a relatively large force, and it takes time to attach the retaining ring, and the elastic member is larger than the outer diameter of the core of the electromagnet. There was a problem that a large diameter was required and the cost was high.

この発明の課題は、電磁石を軸方向に位置決めする弾性部材のばね荷重を従来のものより低く設定できるようにして止め輪の取付けの容易化と、弾性部材のコストの低減化を図ることができるようにした回転伝達装置を提供することである。   The object of the present invention is to make it possible to set the spring load of the elastic member for positioning the electromagnet in the axial direction to be lower than that of the conventional one so that the retaining ring can be easily attached and the cost of the elastic member can be reduced. An object of the present invention is to provide a rotation transmission device.

上記の課題を解決するために、この発明においては、外輪とその内側に組込まれた内輪とを相対的に回転自在に支持し、外輪と内輪との間に、その両輪の対向面に対して係脱される係合子およびその係合子を保持する保持器を有する２方向クラッチを組込み、この２方向クラッチの係合および係合解除を制御する電磁クラッチを上記２方向クラッチに並設し、上記電磁クラッチが、保持器に対して回り止めされたアーマチュアと、外輪に回り止めされて上記アーマチュアと軸方向で対向するロータと、ロータに軸方向で対向し、通電によりロータにアーマチュアを吸着させる電磁石とから成り、上記電磁石と静止部材の相互間に電磁石を軸方向に位置決めする位置決め手段を設けた回転伝達装置において、前記位置決め手段が、電磁石のコアに設けられたフランジを有し、そのフランジを静止部材に形成された凹部内に嵌合し、上記凹部の内周に設けられた係合溝に止め輪を取付けてフランジを抜け止めし、上記凹部の閉塞部内に組込んだ弾性部材でフランジを止め輪に押し付けるようにした構成とされた回転伝達装置としている。 In order to solve the above problems, in the present invention, the outer ring and the inner ring incorporated in the inner ring are relatively rotatably supported, and the outer ring and the inner ring are opposed to the opposing surfaces of the two wheels. A two-way clutch having an engagement member to be engaged and disengaged and a retainer for holding the engagement member is incorporated, and an electromagnetic clutch for controlling engagement and disengagement of the two-way clutch is provided in parallel with the two-way clutch. An armature whose electromagnetic clutch is prevented from rotating with respect to the cage, a rotor that is prevented from rotating around the outer ring and faces the armature in the axial direction, and an electromagnet that faces the rotor in the axial direction and attracts the armature to the rotor when energized A rotation transmission device provided with positioning means for axially positioning the electromagnet between the electromagnet and the stationary member, wherein the positioning means is a core of the electromagnet Has a flange provided, fitted in a recess formed the flange to the stationary member, and retaining the flange is attached to the retaining ring in the engaging groove provided on the inner circumference of the recess, the recess that has a configuration in which as pressed against the snap ring flange by an elastic member incorporated in occlusion of the rotational transfer device.

上記のように、静止部材に形成された凹部の内周に係合溝を設け、その係合溝に止め輪を取付けて凹部内に嵌合されたコアのフランジを抜け止めし、そのフランジと凹部の閉塞端面間に弾性部材を組込んで止め輪にフランジを押し付けるようにしたので、電磁石を軸方向にガタのない安定した精度の高い取付けとすることができる。   As described above, an engagement groove is provided on the inner periphery of the recess formed in the stationary member, and a retaining ring is attached to the engagement groove to prevent the core flange fitted in the recess from coming off. Since the elastic member is incorporated between the closed end faces of the recesses and the flange is pressed against the retaining ring, the electromagnet can be mounted stably and accurately without any backlash in the axial direction.

また、電磁クラッチのオン時に、電磁石がロータに引き付けられる荷重が弾性部材に作用しないため、弾性部材の設定荷重としては、電磁石に作用する軸方向振動Ｇに打ち勝つばね設定荷重とすればよい。このため、弾性部材のばね荷重を従来のものより低く設定することができ、その結果、止め輪の取付けが容易となり、組立て性の向上を図ることができると共に、弾性部材として小径のコストの安いものを採用することができる。   Further, since the load attracted to the rotor by the electromagnet does not act on the elastic member when the electromagnetic clutch is turned on, the set load of the elastic member may be a spring set load that overcomes the axial vibration G acting on the electromagnet. For this reason, the spring load of the elastic member can be set lower than the conventional one. As a result, the retaining ring can be easily attached, the assemblability can be improved, and the cost of the small diameter of the elastic member can be reduced. Things can be adopted.

以下、この発明の実施の形態を図面に基づいて説明する。図示のように、外輪１の内側には内輪２が組込まれ、その外輪１と内輪２は軸受３によって相対的に回転自在に支持されている。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in the figure, an inner ring 2 is incorporated inside the outer ring 1, and the outer ring 1 and the inner ring 2 are supported relatively rotatably by a bearing 3.

外輪１と内輪２間には２方向クラッチ１０が組込まれている。２方向クラッチ１０は、外輪１の内周に円筒面１１を形成し、内輪２には上記円筒面１１と対向する位置に大径部１２を設け、その大径部１２の外周に上記円筒面１１との間で周方向の両端が狭小のくさび状空間を形成する複数のカム面１３を形成し、各カム面１３と円筒面１１との間に係合子としてのローラ１４を組込み、そのローラ１４を保持器１５で保持したローラタイプの２方向クラッチから成っている。   A two-way clutch 10 is incorporated between the outer ring 1 and the inner ring 2. The two-way clutch 10 forms a cylindrical surface 11 on the inner periphery of the outer ring 1, the inner ring 2 is provided with a large diameter portion 12 at a position facing the cylindrical surface 11, and the cylindrical surface is formed on the outer periphery of the large diameter portion 12. A plurality of cam surfaces 13 are formed between the cam surfaces 13 and the cylindrical surface 11, and a roller 14 as an engaging member is incorporated between each cam surface 13 and the cylindrical surface 11. It consists of a roller type two-way clutch in which 14 is held by a cage 15.

図２に示すように、内輪２の大径部１２の端面にはばね収容凹部１６が形成され、そのばね収容凹部１６内にスイッチばね１７が組込まれている。スイッチばね１７はＣ形をなし、その両端には一対の押圧片１７ａが設けられている。一対の押圧片１７ａはばね収容凹部１６の外周壁に形成された切欠部１８から保持器１５の端部に設けられた切欠き１９内に挿入されて上記切欠部１８および切欠き１９の周方向で対向する側面を相反する方向に押圧し、その押圧によってローラ１４が円筒面１１およびカム面１３に対して係合解除される中立位置に保持器１５を弾性保持している。   As shown in FIG. 2, a spring accommodating recess 16 is formed on the end face of the large diameter portion 12 of the inner ring 2, and a switch spring 17 is incorporated in the spring accommodating recess 16. The switch spring 17 has a C shape, and a pair of pressing pieces 17a are provided at both ends thereof. The pair of pressing pieces 17 a is inserted into a notch 19 provided at the end of the retainer 15 from a notch 18 formed on the outer peripheral wall of the spring accommodating recess 16, and the circumferential direction of the notch 18 and the notch 19. The retainer 15 is elastically held at a neutral position where the opposite side surfaces are pressed in opposite directions and the roller 14 is disengaged from the cylindrical surface 11 and the cam surface 13 by the pressing.

図１に示すように、外輪１と保持器１５の相互間には２方向クラッチ１０の係合および係合解除を制御する電磁クラッチ２０が上記２方向クラッチ１０に並設する状態で設けられている。   As shown in FIG. 1, an electromagnetic clutch 20 that controls engagement and disengagement of the two-way clutch 10 is provided between the outer ring 1 and the cage 15 in a state of being arranged in parallel with the two-way clutch 10. Yes.

電磁クラッチ２０は、保持器１５の端面に対向配置されたアーマチュア２１と、そのアーマチュア２１に対向配置されたロータ２２と、そのロータ２２に対向配置された電磁石２３とから成る。   The electromagnetic clutch 20 includes an armature 21 disposed to face the end face of the cage 15, a rotor 22 disposed to face the armature 21, and an electromagnet 23 disposed to face the rotor 22.

アーマチュア２１は保持器１５に対して回り止めされ、かつ軸方向に移動可能に支持されている。そのアーマチュア２１の支持に際し、ここでは、保持器１５の端部内に連結プレート２４を嵌合し、その連結プレート２４の外周対向位置に形成されたＬ形の係合片２５を保持器１５に形成された切欠き１９内に嵌合して連結プレート２４を回り止めし、上記係合片２５をアーマチュア２１に設けられた係合孔２６内に挿入して、アーマチュア２１を回り止めし、かつ軸方向に移動自在としている。   The armature 21 is prevented from rotating with respect to the cage 15 and is supported so as to be movable in the axial direction. When supporting the armature 21, here, the connecting plate 24 is fitted into the end of the retainer 15, and an L-shaped engaging piece 25 formed at the outer peripheral position of the connecting plate 24 is formed in the retainer 15. The connecting plate 24 is prevented from rotating by fitting in the cutout 19, the engaging piece 25 is inserted into the engaging hole 26 provided in the armature 21, and the armature 21 is prevented from rotating. It is movable in the direction.

アーマチュア２１とロータ２２の対向面間には離反ばね２７が組込まれ、その離反ばね２７はアーマチュア２１をロータ２２から離反する方向に向けて押圧している。   A separation spring 27 is incorporated between the facing surfaces of the armature 21 and the rotor 22, and the separation spring 27 presses the armature 21 in a direction away from the rotor 22.

ロータ２２は磁性体から成る。このロータ２２は外周および内周に同一方向に向く円筒部２２ａ、２２ｂを有し、外側円筒部２２ａは外輪１の開口端部に接続された非磁性体から成るロータガイド２８内に圧入されている。その圧入によってロータ２２は外輪１と一体に回転するようになっている。一方、内側円筒部２２ｂはその内部に組込まれた軸受２９によって回転自在に支持されている。   The rotor 22 is made of a magnetic material. The rotor 22 has cylindrical portions 22a and 22b facing in the same direction on the outer periphery and the inner periphery, and the outer cylindrical portion 22a is press-fitted into a rotor guide 28 made of a nonmagnetic material connected to the opening end of the outer ring 1. Yes. The rotor 22 is rotated integrally with the outer ring 1 by the press-fitting. On the other hand, the inner cylindrical portion 22b is rotatably supported by a bearing 29 incorporated therein.

電磁石２３は、ロータ２２の外側円筒部２２ａと内側円筒部２２ｂ間に組込まれている。この電磁石２３は、電磁コイル２３ａと、その電磁コイル２３ａを支持する断面コの字形のコア２３ｂとから成り、上記コア２３ｂはその開口端がロータ２２と対向する配置とされ、閉塞端部は静止部材３０に形成された凹部３１内に挿入され、位置決め手段３２により軸方向に位置決めされている。   The electromagnet 23 is incorporated between the outer cylindrical portion 22 a and the inner cylindrical portion 22 b of the rotor 22. The electromagnet 23 includes an electromagnetic coil 23a and a U-shaped core 23b that supports the electromagnetic coil 23a. The core 23b is disposed so that the opening end faces the rotor 22, and the closed end is stationary. It is inserted into the recess 31 formed in the member 30 and is positioned in the axial direction by the positioning means 32.

図３に示すように、位置決め手段３２は、コア２３ｂの閉塞端に上記凹部３１内に嵌合されるフランジ３３を設け、凹部３１の内周には係合溝３４を形成し、その係合溝３４に止め輪３５を取付けてフランジ３３を抜け止めし、そのフランジ３３と凹部３１の閉塞端面間に弾性部材３６を組込んでフランジ３３を止め輪３５に押し付けている。弾性部材３６として皿ばねやウェーブばねを採用することができる。   As shown in FIG. 3, the positioning means 32 is provided with a flange 33 fitted into the recess 31 at the closed end of the core 23b, and an engagement groove 34 is formed on the inner periphery of the recess 31. A retaining ring 35 is attached to the groove 34 to prevent the flange 33 from coming off, and an elastic member 36 is assembled between the flange 33 and the closed end face of the recess 31 to press the flange 33 against the retaining ring 35. A disc spring or a wave spring can be adopted as the elastic member 36.

実施の形態で示す回転伝達装置は上記の構造から成り、外輪１には入力軸を接続し、一方、内輪２には出力軸を接続する。その入力軸および出力軸の接続のため、外輪１の内周および内輪２の内周にはスプライン歯４０、４１が設けられている。   The rotation transmission device shown in the embodiment has the above-described structure, and an input shaft is connected to the outer ring 1, while an output shaft is connected to the inner ring 2. In order to connect the input shaft and the output shaft, spline teeth 40 and 41 are provided on the inner periphery of the outer ring 1 and the inner periphery of the inner ring 2.

図１および図２は、電磁石２３の電磁コイル２３ａに対して通電を遮断した状態を示し、２方向クラッチ１０のローラ１４はスイッチばね１７の弾性力により円筒面１１およびカム面１３に対して係合解除された中立位置に保持されている。   1 and 2 show a state in which the electromagnetic coil 23a of the electromagnet 23 is de-energized, and the roller 14 of the two-way clutch 10 is engaged with the cylindrical surface 11 and the cam surface 13 by the elastic force of the switch spring 17. It is held in the neutral position that has been released.

このため、外輪１が回転しても、その回転は内輪２に伝達されず、外輪１のみがフリー回転する。   For this reason, even if the outer ring 1 rotates, the rotation is not transmitted to the inner ring 2, and only the outer ring 1 rotates freely.

外輪１の回転状態において、電磁石２３の電磁コイル２３ａに通電すると、アーマチュア２１がロータ２２に吸着されてアーマチュア２１が外輪１に結合される。このとき、アーマチュア２１は保持器１５に回り止めされているため、保持器１５は外輪１と共に回転すると共に、内輪２に対して相対回転する。その相対回転によりローラ１４が円筒面１１およびカム面１３に係合し、外輪１の回転はローラ１４を介して内輪２に伝達される。   When the electromagnetic coil 23 a of the electromagnet 23 is energized while the outer ring 1 is rotating, the armature 21 is attracted to the rotor 22 and the armature 21 is coupled to the outer ring 1. At this time, since the armature 21 is prevented from rotating by the cage 15, the cage 15 rotates together with the outer ring 1 and rotates relative to the inner ring 2. The roller 14 is engaged with the cylindrical surface 11 and the cam surface 13 by the relative rotation, and the rotation of the outer ring 1 is transmitted to the inner ring 2 via the roller 14.

保持器１５が内輪２に対して相対回転するとき、スイッチばね１７が弾性変形する。このため、電磁石２３の電磁コイル２３ａに対する通電を遮断すると、スイッチばね１７の復元弾性により保持器１５が回動され、ローラ１４は円筒面１１およびカム面１３に対して係合解除される中立位置に戻されて外輪１から内輪２への回転伝達が遮断される。   When the cage 15 rotates relative to the inner ring 2, the switch spring 17 is elastically deformed. For this reason, when the energization of the electromagnet 23 to the electromagnetic coil 23 a is interrupted, the retainer 15 is rotated by the restoring elasticity of the switch spring 17, and the roller 14 is in a neutral position where the engagement with the cylindrical surface 11 and the cam surface 13 is released. The rotation transmission from the outer ring 1 to the inner ring 2 is interrupted.

電磁石２３の電磁コイル２３ａに対する通電と遮断とによって２方向クラッチ１０の係合および係合解除を制御する上記のような回転伝達装置において、電磁石２３の軸方向の位置決めが不安定であると、スイッチばね１７を弾性変形させることのできるスイッチトルクを保持器１５に負荷することができず、また、振動等により電磁石２３が軸方向にガタつき、異音を発生させることになる。   In the rotation transmission device as described above that controls the engagement and disengagement of the two-way clutch 10 by energization and interruption of the electromagnetic coil 23a of the electromagnet 23, if the axial positioning of the electromagnet 23 is unstable, the switch A switch torque capable of elastically deforming the spring 17 cannot be applied to the retainer 15, and the electromagnet 23 rattles in the axial direction due to vibration or the like, thereby generating abnormal noise.

実施の形態では、コア２３ｂに設けたフランジ３３を静止部材３０に形成された凹部３１内に嵌合し、その凹部３１の内周に設けられた係合溝３４に止め輪３５を取付けてフランジ３３を抜け止めし、そのフランジ３３と凹部３１の閉塞端面間に弾性部材３６を組込み、その弾性部材３６でフランジ３３を止め輪３５に押し付けるようにしているため、電磁石２３が振動等で軸方向に動くことがない安定した取付け状態を得ることができる。   In the embodiment, the flange 33 provided on the core 23 b is fitted into the recess 31 formed in the stationary member 30, and the retaining ring 35 is attached to the engagement groove 34 provided on the inner periphery of the recess 31 to flange. 33, the elastic member 36 is assembled between the flange 33 and the closed end face of the recess 31, and the flange 33 is pressed against the retaining ring 35 by the elastic member 36. A stable installation state that does not move easily can be obtained.

また、弾性部材３６をフランジ３３と凹部３１の閉塞端面間に組込むことによって、電磁クラッチ２０のオン時に電磁石２３がロータ２２に引き付けられる荷重が弾性部材３６に作用しない。このため、弾性部材３６の設定荷重としては、電磁石２３に作用する軸方向振動Ｇに打ち勝つばね設定荷重とすればよい。   Further, by incorporating the elastic member 36 between the flange 33 and the closed end face of the recess 31, the load that attracts the electromagnet 23 to the rotor 22 when the electromagnetic clutch 20 is on does not act on the elastic member 36. For this reason, the set load of the elastic member 36 may be a spring set load that overcomes the axial vibration G acting on the electromagnet 23.

したがって、弾性部材３６のばね荷重を前述従来の弾性部材より低く設定することができ、止め輪３５の取付けが容易であって組立て性の向上を図ることができる。また、弾性部材３６として小径のコストの安いものを採用することができる。   Therefore, the spring load of the elastic member 36 can be set lower than that of the conventional elastic member described above, the retaining ring 35 can be easily attached, and the assemblability can be improved. Further, a small diameter and low cost can be adopted as the elastic member 36.

実施の形態では、２方向クラッチ１０としてローラタイプのものを示したが、２方向クラッチ１０はこれに限定されるものではない。例えば、係合子としてスプラグを用いたスプラグタイプの２方向クラッチであってもよい。スプラグタイプの２方向クラッチの場合は、外輪の内周および内輪の外周に円筒面を形成し、その円筒面間にスプラグを組込み、このスプラグを径の異なる二つの保持器で保持し、その小径側の保持器を内輪に固定し、大径側保持器と内輪の相互間にスイッチばねを組込んでスプラグを円筒面に対して係合解除される中立位置に保持する。また、大径側保持器を電磁クラッチによって外輪に係合又は係合解除させるようにする。   In the embodiment, the two-way clutch 10 is a roller type, but the two-way clutch 10 is not limited to this. For example, a sprag type two-way clutch using a sprag as an engagement element may be used. In the case of a sprag type two-way clutch, a cylindrical surface is formed on the inner periphery of the outer ring and the outer periphery of the inner ring, a sprag is incorporated between the cylindrical surfaces, and the sprag is held by two cages having different diameters. The retainer on the side is fixed to the inner ring, and a switch spring is incorporated between the large-diameter side retainer and the inner ring to hold the sprag in a neutral position where it is disengaged from the cylindrical surface. Further, the large-diameter side cage is engaged with or disengaged from the outer ring by an electromagnetic clutch.

この発明に係る回転伝達装置の実施形態を示す縦断正面図A longitudinal front view showing an embodiment of a rotation transmission device according to the present invention 図１のII−II線に沿った断面図Sectional view along the line II-II in FIG. 図１の電磁石の位置決め部を拡大して示す断面図Sectional drawing which expands and shows the positioning part of the electromagnet of FIG.

符号の説明Explanation of symbols

１ 外輪
２ 内輪
１０ ２方向クラッチ
１４ ローラ（係合子）
１５ 保持器
２０ 電磁クラッチ
２１ アーマチュア
２２ ロータ
２３ 電磁石
２３ｂ コア
３０ 静止部材
３１ 凹部
３２ 位置決め手段
３３ フランジ
３４ 係合溝
３５ 止め輪
３６ 弾性部材 DESCRIPTION OF SYMBOLS 1 Outer ring 2 Inner ring 10 Two-way clutch 14 Roller (engagement element)
15 Cage 20 Electromagnetic clutch 21 Armature 22 Rotor 23 Electromagnet 23b Core 30 Stationary member 31 Recess 32 Positioning means 33 Flange 34 Engaging groove 35 Retaining ring 36 Elastic member

Claims (2)

外輪とその内側に組込まれた内輪とを相対的に回転自在に支持し、外輪と内輪との間に、その両輪の対向面に対して係脱される係合子およびその係合子を保持する保持器を有する２方向クラッチを組込み、この２方向クラッチの係合および係合解除を制御する電磁クラッチを上記２方向クラッチに並設し、上記電磁クラッチが、保持器に対して回り止めされたアーマチュアと、外輪に回り止めされて上記アーマチュアと軸方向で対向するロータと、ロータに軸方向で対向し、通電によりロータにアーマチュアを吸着させる電磁石とから成り、上記電磁石と静止部材の相互間に電磁石を軸方向に位置決めする位置決め手段を設けた回転伝達装置において、前記位置決め手段が、電磁石のコアに設けられたフランジを有し、そのフランジを静止部材に形成された凹部内に嵌合し、上記凹部の内周に設けられた係合溝に止め輪を取付けてフランジを抜け止めし、上記凹部の閉塞部内に組込んだ弾性部材でフランジを止め輪に押し付けるようにした構成とされていることを特徴とする回転伝達装置。 An outer ring and an inner ring incorporated in the outer ring are supported relatively rotatably, and an engagement member engaged with and disengaged from the opposing surfaces of the two wheels is held between the outer ring and the inner ring and a holding member for holding the engagement element. An armature in which a two-way clutch having a retainer is incorporated, and an electromagnetic clutch for controlling engagement and disengagement of the two-way clutch is juxtaposed with the two-way clutch, and the electromagnetic clutch is prevented from rotating with respect to a cage A rotor that is prevented from rotating by an outer ring and is axially opposed to the armature, and an electromagnet that is axially opposed to the rotor and attracts the armature to the rotor when energized, and the electromagnet is interposed between the electromagnet and the stationary member. In the rotation transmission device provided with positioning means for positioning the shaft in the axial direction, the positioning means has a flange provided on the core of the electromagnet, and the flange is a stationary part. Fitted into the formed within recess, and retained a flange attached to the retaining ring in the engaging groove provided on the inner circumference of the recess, locking the flange by an elastic member incorporated in occlusion of the recess rotation transmitting device, characterized in that there is a structure in which a pressed against the wheel. 前記凹部の閉塞端面に環状溝を形成し、その環状溝内に前記弾性部材を組込んだ請求項１に記載の回転伝達装置。The rotation transmission device according to claim 1, wherein an annular groove is formed in the closed end surface of the recess, and the elastic member is incorporated in the annular groove.
JP2005039006A 2005-02-16 2005-02-16 Rotation transmission device Active JP4541178B2 (en)

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JP5316769B2 (en) * 2009-01-16 2013-10-16 横河電機株式会社 Flange fastening structure
JP6121119B2 (en) 2011-09-26 2017-04-26 Ntn株式会社 Rotation transmission device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6232265U (en) * 1985-08-13 1987-02-26
JP2003090356A (en) * 2001-09-17 2003-03-28 Ntn Corp Rotation transmitting device
JP2003191768A (en) * 2001-12-26 2003-07-09 Honda Motor Co Ltd Two-wheel/four-wheel drive switching device for vehicle
WO2004060606A1 (en) * 2002-12-27 2004-07-22 Kosmek Ltd. Positioning device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6232265U (en) * 1985-08-13 1987-02-26
JP2003090356A (en) * 2001-09-17 2003-03-28 Ntn Corp Rotation transmitting device
JP2003191768A (en) * 2001-12-26 2003-07-09 Honda Motor Co Ltd Two-wheel/four-wheel drive switching device for vehicle
WO2004060606A1 (en) * 2002-12-27 2004-07-22 Kosmek Ltd. Positioning device

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