JP2016109195A - Rotation transmission device - Google Patents

Rotation transmission device Download PDF

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Publication number
JP2016109195A
JP2016109195A JP2014246631A JP2014246631A JP2016109195A JP 2016109195 A JP2016109195 A JP 2016109195A JP 2014246631 A JP2014246631 A JP 2014246631A JP 2014246631 A JP2014246631 A JP 2014246631A JP 2016109195 A JP2016109195 A JP 2016109195A
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Japan
Prior art keywords
support ring
transmission device
rotation transmission
ring
input shaft
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JP2014246631A
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Japanese (ja)
Inventor
尚弘 岡田
Naohiro Okada
尚弘 岡田
直嗣 北山
Naotsugu KITAYAMA
直嗣 北山
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NTN Corp
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NTN Corp
NTN Toyo Bearing Co Ltd
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Priority to JP2014246631A priority Critical patent/JP2016109195A/en
Priority to PCT/JP2015/082877 priority patent/WO2016088601A1/en
Publication of JP2016109195A publication Critical patent/JP2016109195A/en
Pending legal-status Critical Current

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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
    • F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
    • F16D27/10—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings
    • F16D27/118—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with interengaging jaws or gear teeth
    • 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
    • F16D41/08—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action
    • F16D41/10—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action with self-actuated reversing
    • F16D41/105—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action with self-actuated reversing the intermediate members being of circular cross-section, of only one size and wedging by rolling movement not having an axial component between inner and outer races, one of which is cylindrical
    • 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
    • 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
    • F16D41/067—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 and the members being distributed by a separate cage encircling the axis of rotation
    • 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
    • F16D41/08—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a rotation transmission device capable of being disassembled without damaging a support ring for backing up a thrust bearing.SOLUTION: A holder 20 of a two-way clutch 10 in which engagement and engagement release are controlled by an electromagnetic clutch 50 is formed with a control holder 20A and a rotation holder 20B, and the rotation holder 20B is rotatably supported in a thrust bearing 30. An engagement recess part 60 is provided in a support ring 28 press-fitted into an input shaft Sand backing up the thrust bearing 30. In disassembly of the support ring 28, a jig T for puling-out is engaged to the engagement recess part 60, and by imparting tension force, the support ring 28 is pulled out from the press-fit part of the input shaft S.SELECTED DRAWING: Figure 2

Description

この発明は、入力軸から出力軸への回転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。   The present invention relates to a rotation transmission device used for switching between transmission and cutoff of rotation from an input shaft to an output shaft.

入力軸から出力軸への回転の伝達と遮断とを行う回転伝達装置として、入力軸と出力軸とを結合および解除する２方向クラッチを有し、その２方向クラッチの係合および解除を電磁クラッチにより制御するようにしたものが従来から知られている。   As a rotation transmission device for transmitting and interrupting rotation from an input shaft to an output shaft, a two-way clutch for coupling and releasing the input shaft and the output shaft is provided, and the engagement and release of the two-way clutch are electromagnetic clutches What is controlled by this is conventionally known.

特許文献１に記載された回転伝達装置においては、外輪とその内側に組み込まれた内輪との間に制御保持器に設けられた複数の柱部と回転保持器に設けられた複数の柱部が周方向で交互に配置されるよう組込み、隣接する柱部間に形成されたポケット内に対向一対のローラを組込み、その一対のローラを、その対向部間に組み込まれた弾性部材で離反する方向に付勢して、外輪の内周に形成された円筒面と内輪の外周に形成されたカム面に係合する位置にスタンバイさせ、上記内輪の一方向への回転により一方のローラを円筒面およびカム面に係合させ、内輪の回転を外輪に伝達するようにしている。   In the rotation transmission device described in Patent Document 1, a plurality of column portions provided in the control holder and a plurality of column portions provided in the rotation holder are provided between the outer ring and the inner ring incorporated inside the outer ring. Incorporating to be alternately arranged in the circumferential direction, incorporating a pair of opposed rollers in a pocket formed between adjacent pillars, and separating the pair of rollers with an elastic member incorporated between the opposed portions And is put on standby at a position where it engages with a cylindrical surface formed on the inner periphery of the outer ring and a cam surface formed on the outer periphery of the inner ring. The rotation of the inner ring is transmitted to the outer ring by engaging with the cam surface.

また、内輪に接続された入力軸上に電磁クラッチを設け、その電磁クラッチの電磁石に対する通電によりロータに対向配置されたアーマチュアに磁気吸引力を付与して、アーマチュアおよびそのアーマチュアに連結された制御保持器を軸方向に移動させ、その制御保持器のフランジと回転保持器のフランジの対向面間に設けられたトルクカムの作用によりポケットの周方向幅が小さくなる方向に制御保持器と回転保持器とを相対回転させて、各保持器の柱部で一対のローラを係合解除位置まで移動させ、内輪から外輪への回転伝達を遮断するようにしている。   Also, an electromagnetic clutch is provided on the input shaft connected to the inner ring, and a magnetic attractive force is applied to the armature disposed opposite to the rotor by energizing the electromagnet of the electromagnetic clutch, and the armature and the control holding connected to the armature. The control cage and the rotary cage are moved in the direction in which the circumferential width of the pocket is reduced by the action of a torque cam provided between the opposing faces of the flange of the control cage and the flange of the rotary cage. Are rotated relative to each other, and the pair of rollers are moved to the disengagement position at the pillar portion of each cage, so that the rotation transmission from the inner ring to the outer ring is blocked.

上記回転伝達装置においては、電磁クラッチの電磁石に対する通電を解除すると、対向一対のローラ間に組み込まれた弾性部材の押圧作用により制御保持器と回転保持器とがポケットの周方向幅が大きくなる方向に相対回転して対向一対のローラが円筒面およびカム面に当接するスタンバイ状態に保持されるため、内輪の回転によりローラが円筒面およびカム面に直ちに係合することになり、回転方向ガタがきわめて小さく、応答性に優れているという特徴を有している。   In the rotation transmission device, when energization of the electromagnet of the electromagnetic clutch is released, the circumferential direction width of the pocket between the control cage and the rotation cage is increased by the pressing action of the elastic member incorporated between the pair of opposed rollers. The roller is immediately engaged with the cylindrical surface and the cam surface by the rotation of the inner ring. It is extremely small and has excellent responsiveness.

特開２０１３−２０４７６４号公報JP 2013-204764 A

ところで、上記特許文献１に記載された回転伝達装置においては、入力軸上に支持リングを設け、その支持リングによってバックアップされたスラスト軸受によって回転保持器を回転自在に支持しているが、上記支持リングが圧入による取り付けであって、その円筒状の外径面で制御保持器に連結されたアーマチュアをスライド自在に支持しているため、嵌め殺しによる取り付け状態となり、一度圧入すると分解することができない。   Incidentally, in the rotation transmission device described in Patent Document 1, a support ring is provided on the input shaft, and the rotary cage is rotatably supported by a thrust bearing backed up by the support ring. The ring is attached by press-fitting, and the armature connected to the control cage is slidably supported by its cylindrical outer diameter surface, so it is attached by fitting and cannot be disassembled once press-fitted. .

このため、回転伝達装置の組立工程やメンテナンス等において分解が必要になった際には、支持リングやアーマチュア等の部品を破壊する必要があり、その破壊部品については新しいものと交換しなければならないため、コスト面で非常に不利であり、また、分解に手間がかかり、そのコスト面および分解作業の効率化を図る面から分解可能な構造とすることが求められている。   For this reason, when it is necessary to disassemble in the assembly process or maintenance of the rotation transmission device, it is necessary to destroy the parts such as the support ring and the armature, and the broken parts must be replaced with new ones. Therefore, it is very disadvantageous in terms of cost, takes time for disassembling, and is required to have a structure that can be disassembled from the viewpoint of cost and efficiency of disassembling work.

この発明の課題は、スラスト軸受をバックアップする支持リングを破損させることなく分解し得るようにした回転伝達装置を提供することである。   An object of the present invention is to provide a rotation transmission device that can be disassembled without damaging a support ring that backs up a thrust bearing.

上記の課題を解決するため、この発明においては、入力軸と、その入力軸と同軸上に配置された出力軸の相互間において回転の伝達と遮断とを行なう２方向クラッチと、前記入力軸上に設けられて２方向クラッチの係合および解除を制御する電磁クラッチを有し、前記２方向クラッチが、前記出力軸の軸端部に設けられた外輪の内周と前記入力軸の軸端部に設けられた内輪の外周間に、制御保持器および回転保持器のそれぞれに設けられた柱部が周方向に交互に配置される組み込みとされ、隣接する柱部間に形成されたポケット内に前記外輪の内周および内輪の外周に対して係合可能な一対の係合子と、その一対の係合子を離反する方向に付勢する弾性部材とが組み込まれ、前記制御保持器が軸方向に移動自在に支持され、前記回転保持器が前記入力軸に圧入された支持リングとの間に組み込まれたスラスト軸受によって回転自在に支持された構成とされ、前記電磁クラッチの電磁石への通電により前記制御保持器を前記支持リングに向けて移動させ、その制御保持器と回転保持器の相互間に組み込まれた運動変換機構によりポケットの周方向幅が小さくなる方向に制御保持器と回転保持器を相対回転させて一対の係合子を係合解除させるようにした回転伝達装置において、前記支持リングに引抜き用治具が係脱可能とされ、その係合状態で係合部位に軸方向力が付与可能な複数の係合凹部を周方向に間隔をおいて設けた構成を採用したのである。   In order to solve the above problems, in the present invention, a two-way clutch that transmits and blocks rotation between an input shaft and an output shaft that is arranged coaxially with the input shaft, and the input shaft An electromagnetic clutch that controls engagement and disengagement of the two-way clutch, and the two-way clutch includes an inner circumference of an outer ring provided at a shaft end portion of the output shaft and a shaft end portion of the input shaft. In the pocket formed between the adjacent pillars, the pillars provided in each of the control cage and the rotary cage are alternately arranged in the circumferential direction between the outer rings of the inner rings provided in the A pair of engagement elements that can be engaged with the inner periphery of the outer ring and the outer periphery of the inner ring, and an elastic member that urges the pair of engagement elements in a direction away from each other are incorporated. It is supported so that it can move freely. It is configured to be rotatably supported by a thrust bearing built in between a support ring press-fitted to the input shaft, and the control retainer is moved toward the support ring by energizing the electromagnet of the electromagnetic clutch. And a pair of engagement elements engaged with each other by rotating the control holder and the rotary holder relative to each other in the direction in which the circumferential width of the pocket is reduced by the motion conversion mechanism incorporated between the control holder and the rotary holder. In the rotation transmission device to be released, a plurality of engaging recesses can be provided in the circumferential direction so that an extraction jig can be engaged with and disengaged from the support ring, and an axial force can be applied to the engaging portion in the engaged state. A configuration provided at intervals was adopted.

上記の構成からなる回転伝達装置においては、自動車のステアリングホイールの操作を転舵アクチュエータに電気信号で伝えるステアバイワイヤ装置等に適用することができる。   The rotation transmission device configured as described above can be applied to a steer-by-wire device that transmits an operation of a steering wheel of an automobile to a steering actuator by an electric signal.

ここで、係合凹部は、引抜き用治具に設けられたＬ形鉤部が挿通可能な挿通孔と、その挿通孔の端部に連通して前記鉤部が係合可能な凹段部とを有する段差付き孔とすることができる。この場合、凹段部は支持リングの周方向に向けて設けられたものであってもよく、支持リングの径方向に向けて設けられたものであってもよい。   Here, the engaging recess includes an insertion hole through which an L-shaped flange provided in the extraction jig can be inserted, and a recessed step portion that is communicated with an end of the insertion hole and that can engage the flange. It can be set as the hole with a level | step difference which has. In this case, the recessed step portion may be provided toward the circumferential direction of the support ring, or may be provided toward the radial direction of the support ring.

凹段部が支持リングの周方向に向けて設けられた段差付き孔については、その凹段部を挿通孔の両端部から相反する方向に向けて形成して、段差付き孔を支持リングの表裏において同一形状とすることにより、支持リングの組込みの方向性をなくし、向きの誤った組込みを防止することができる。   For the stepped hole with the concave step provided in the circumferential direction of the support ring, the concave step is formed in the opposite direction from both ends of the insertion hole, and the stepped hole is formed on the front and back of the support ring. By using the same shape, the direction of assembling the support ring can be eliminated, and the wrong orientation can be prevented.

一方、凹段部が支持リングの径方向に向けて設けられた段差付き孔においては、その段差付き孔を支持リングの内周部に形成し、あるいは、外周部に形成してもよい。この場合、凹段部を挿通孔の両端部から同方向に向けて設けて、段差付き孔を支持リングの表裏において同一形状とすることにより、上記と同様に、支持リングの組込みの方向性をなくし、向きの誤った組込みを防止することができる。   On the other hand, in the stepped hole in which the concave step portion is provided in the radial direction of the support ring, the stepped hole may be formed in the inner peripheral portion of the support ring or in the outer peripheral portion. In this case, the concave step portion is provided in the same direction from both ends of the insertion hole, and the stepped hole has the same shape on the front and back of the support ring, so that the mounting direction of the support ring is the same as described above. It is possible to prevent incorrect installation.

上記のように、係合凹部を段差付き孔とすることによって、支持リングを型成形によって形成することができる。そこで、支持リングを金属粉末の焼結成形品または鍛造品とすることで、支持リングを容易に形成することができ、製造コストを低減することができる。   As described above, the support ring can be formed by molding by forming the engaging recess as a stepped hole. Therefore, the support ring can be easily formed by reducing the support ring to a metal powder sintered molded product or a forged product, and the manufacturing cost can be reduced.

係合凹部は上記のような段差付き孔に限定されるものではない。例えば、ボルトからなる引抜き用治具がねじ込み可能なねじ孔からなるものであってもよい。   The engaging recess is not limited to the stepped hole as described above. For example, a drawing jig made of a bolt may be a screw hole into which a screw can be screwed.

この発明においては、上記のように、支持リングに引抜き用治具が係脱可能な係合凹部を設けたことにより、その係合凹部に引抜き用治具を係合して引張り力を付与することで支持リングを入力軸の圧入部から引き抜くことができ、部品を破壊することなく支持リングを分解することができる。   In the present invention, as described above, by providing the support ring with the engaging recess that allows the pulling jig to be engaged and disengaged, the pulling jig is engaged with the engaging recess to apply a tensile force. Thus, the support ring can be pulled out from the press-fitting portion of the input shaft, and the support ring can be disassembled without destroying the parts.

この発明に係る回転伝達装置の実施の形態を示す縦断面図A longitudinal sectional view showing an embodiment of a rotation transmission device according to the present invention 図１の支持リングの組み込み部を拡大して示す断面図Sectional drawing which expands and shows the incorporating part of the support ring of FIG. 図１のIII−III線に沿った断面図Sectional view along line III-III in FIG. 図３に示すローラの係合解除状態を示す断面図Sectional drawing which shows the disengagement state of the roller shown in FIG. 図１のV−V線に沿った断面図Sectional view along line V-V in FIG. 図５のVI−VI線に沿った断面図Sectional view along line VI-VI in FIG. 図１のVII−VII線に沿った断面図Sectional view along line VII-VII in FIG. （ａ）は図７のVIII−VIII線に沿った断面図、(ｂ)は作動状態を示す断面図(A) is sectional drawing which followed the VIII-VIII line of FIG. 7, (b) is sectional drawing which shows an operation state. 図１のIX−IX線に沿った断面図Sectional view along line IX-IX in FIG. 図９の一部を拡大して示す断面図Sectional drawing which expands and shows a part of FIG. 図１０のXI−XI線に沿った断面図Sectional view along line XI-XI in FIG. 支持リングを示す斜視図Perspective view showing the support ring （ａ）は支持リングの他の例を示す正面図、（ｂ）は（ａ）のXIII−XIII線に沿った断面図(A) is a front view which shows the other example of a support ring, (b) is sectional drawing along the XIII-XIII line of (a). 引抜き用治具を示す斜視図A perspective view showing a drawing jig （ａ）は支持リングのさらに他の例を示す正面図、（ｂ）は（ａ）のXV−XV線に沿った断面図(A) is a front view showing still another example of the support ring, (b) is a cross-sectional view taken along line XV-XV in (a). （ａ）は支持リングのさらに他の例を示す正面図、（ｂ）は（ａ）のXVI−XVI線に沿った断面図(A) is a front view showing still another example of the support ring, (b) is a cross-sectional view taken along line XVI-XVI of (a). （ａ）は支持リングのさらに他の例を示す正面図、（ｂ）は（ａ）のXVII−XVII線に沿った断面図(A) is a front view showing still another example of the support ring, (b) is a cross-sectional view taken along line XVII-XVII in (a). （ａ）は支持リングのさらに他の例を示す正面図、（ｂ）は（ａ）のXVIII−XVIII線に沿った断面図(A) is a front view showing still another example of the support ring, (b) is a cross-sectional view taken along line XVIII-XVIII of (a)

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１は、この発明に係る回転伝達装置の実施の形態を示す。図示のように、回転伝達装置は、入力軸Ｓ１と、その入力軸Ｓ１と同軸上に配置された出力軸Ｓ２と、その両軸の軸端部を覆うハウジング１と、そのハウジング１内に組み込まれて入力軸Ｓ１から出力軸Ｓ２への回転の伝達と遮断とを行なう２方向クラッチ１０およびその２方向クラッチ１０の係合、解除を制御する電磁クラッチ５０とからなる。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of a rotation transmission device according to the present invention. As shown in the figure, the rotation transmission device includes an input shaft S 1 , an output shaft S 2 arranged coaxially with the input shaft S 1 , a housing 1 covering the shaft ends of both shafts, and the housing 1. engagement of two-way clutch 10 and a two-way clutch 10 that is incorporated into the inner performing an interrupting a transmission of rotation from the input shaft S 1 to the output shaft S 2, an electromagnetic clutch 50 for controlling the release.

ハウジング１は円筒状をなし、その一端部には小径の軸受筒２が設けられ、他端部内周には電磁クラッチ５０を抜止めする止め輪３が取付けられている。   The housing 1 has a cylindrical shape, a small-diameter bearing cylinder 2 is provided at one end thereof, and a retaining ring 3 for retaining the electromagnetic clutch 50 is attached to the inner periphery of the other end.

図１および図３に示すように、２方向クラッチ１０は、出力軸Ｓ２の軸端部に設けられた外輪１１の内周に円筒面１２を設け、入力軸Ｓ１の軸端部に設けられた内輪１３の外周に複数のカム面１４を周方向に形成し、その複数のカム面１４のそれぞれと円筒面１２間に一対の係合子としてのローラ１５と弾性部材１６とを組込み、そのローラ１５を保持器２０で保持し、上記内輪１３の一方向への回転により一対のローラ１５の一方を円筒面１２およびカム面１４に係合させて内輪１３の回転を外輪１１に伝達し、また、内輪１３の他方向への回転時に他方のローラ１５を円筒面１２およびカム面１４に係合させて内輪１３の回転を外輪１１に伝達するようにしている。 As shown in FIGS. 1 and 3, two-way clutch 10, a cylindrical surface 12 provided on the inner periphery of the outer ring 11 provided on the shaft end of the output shaft S 2, provided on the shaft end of the input shaft S 1 A plurality of cam surfaces 14 are formed in the circumferential direction on the outer circumference of the inner ring 13, and a pair of rollers 15 and an elastic member 16 are assembled between each of the plurality of cam surfaces 14 and the cylindrical surface 12. The roller 15 is held by a cage 20, and the rotation of the inner ring 13 is transmitted to the outer ring 11 by engaging one of the pair of rollers 15 with the cylindrical surface 12 and the cam surface 14 by rotating the inner ring 13 in one direction. Further, when the inner ring 13 rotates in the other direction, the other roller 15 is engaged with the cylindrical surface 12 and the cam surface 14 to transmit the rotation of the inner ring 13 to the outer ring 11.

ここで、外輪１１の閉塞端部の内面側には小径の凹部１７が形成され、その凹部１７内に組み込まれた軸受１８によって入力軸Ｓ１の軸端部が回転自在に支持されている。 Here, a small-diameter concave portion 17 is formed on the inner surface side of the closed end portion of the outer ring 11, and the shaft end portion of the input shaft S 1 is rotatably supported by a bearing 18 incorporated in the concave portion 17.

内輪１３は入力軸Ｓ１に一体に形成されている。その内輪１３の外周に形成されたカム面１４は、図３に示すように、相反する方向に傾斜して外輪１１の円筒面１２との間でくさび形空間を形成する一対の傾斜面１４ａ、１４ｂと、その一対の傾斜面１４ａ、１４ｂ間に設けられた平坦面１４ｃとからなり、上記平坦面１４ｃによって弾性部材１６が支持されている。 The inner ring 13 is formed integrally with the input shaft S 1. As shown in FIG. 3, the cam surface 14 formed on the outer periphery of the inner ring 13 is inclined in opposite directions to form a wedge-shaped space with the cylindrical surface 12 of the outer ring 11, 14b and a flat surface 14c provided between the pair of inclined surfaces 14a, 14b, and the elastic member 16 is supported by the flat surface 14c.

弾性部材１６はコイルばねからなる。この弾性部材１６は一対のローラ１５間に配置される組込みとされ、その弾性部材１６で一対のローラ１５は離反する方向に付勢されて円筒面１２およびカム面１４に係合するスタンバイ位置に配置されている。   The elastic member 16 consists of a coil spring. The elastic member 16 is incorporated between the pair of rollers 15, and the elastic member 16 biases the pair of rollers 15 away from each other so as to engage with the cylindrical surface 12 and the cam surface 14. Is arranged.

図２に示すように、保持器２０は、制御保持器２０Ａと回転保持器２０Ｂとからなる。図２および図７に示すように、制御保持器２０Ａは、環状のフランジ２１の片面外周部にカム面１４ａと同数の柱部２２を周方向に等間隔に設け、その隣接する柱部２２間に円弧状の長孔２３を形成し、外周には柱部２２と反対向きに筒部２４を設けた構成とされている。   As shown in FIG. 2, the cage 20 includes a control cage 20A and a rotary cage 20B. As shown in FIG. 2 and FIG. 7, the control retainer 20 </ b> A is provided with the same number of column portions 22 as the cam surface 14 a at equal intervals in the circumferential direction on one outer peripheral portion of the annular flange 21. An arc-shaped long hole 23 is formed on the outer periphery, and a cylindrical portion 24 is provided on the outer periphery in a direction opposite to the column portion 22.

一方、回転保持器２０Ｂは、環状のフランジ２５の外周にカム面１４と同数の柱部２６を周方向に等間隔に設けた構成とされている。   On the other hand, the rotary cage 20B is configured such that the same number of column portions 26 as the cam surface 14 are provided at equal intervals in the circumferential direction on the outer periphery of the annular flange 25.

制御保持器２０Ａと回転保持器２０Ｂは、制御保持器２０Ａの長孔２３内に回転保持器２０Ｂの柱部２６が挿入されて、その柱部２２、２６が周方向に交互に並ぶ組み合わせとされる。そして、その組み合わせ状態で柱部２２、２６の先端部が外輪１１と内輪１３間に配置され、制御保持器２０Ａのフランジ２１および回転保持器２０Ｂのフランジ２５が入力軸Ｓ１の外周に嵌合された支持リング２８と外輪１１の開口端面間に位置する組込みとされている。 The control retainer 20A and the rotation retainer 20B are a combination in which the column portions 26 of the rotation retainer 20B are inserted into the elongated holes 23 of the control retainer 20A, and the column portions 22 and 26 are alternately arranged in the circumferential direction. The Then, the distal end portion of the pillar portion 22 and 26 is disposed between the outer ring 11 and inner ring 13 in the combination state, the flange 25 of the flange 21 and the rotary cage 20B of the control retainer 20A is fitted on the outer periphery of the input shaft S 1 The support ring 28 and the open end face of the outer ring 11 are incorporated.

上記のような保持器２０Ａ、２０Ｂの組込みによって、図３および図４に示すように、制御保持器２０Ａの柱部２２と回転保持器２０Ｂの柱部２６間にポケット２７が形成される。ポケット２７は内輪１３のカム面１４と径方向で対向し、各ポケット２７内に対向一対の係合子としてのローラ１５および弾性部材１６が組込まれている。   By incorporating the cages 20A and 20B as described above, as shown in FIGS. 3 and 4, a pocket 27 is formed between the column portion 22 of the control cage 20A and the column portion 26 of the rotary cage 20B. The pocket 27 faces the cam surface 14 of the inner ring 13 in the radial direction, and a roller 15 and an elastic member 16 as a pair of opposed engaging members are incorporated in each pocket 27.

図１および図２に示すように、制御保持器２０Ａのフランジ２１は、入力軸Ｓ１の外周に形成されたスライド案内面２９に沿ってスライド自在に支持されている。一方、回転保持器２０Ｂは、フランジ２５と入力軸Ｓ１に嵌合された上述の支持リング２８でバックアップされるスラスト軸受３０により回転自在に支持されている。 As shown in FIGS. 1 and 2, the flange 21 of the control retainer 20A is slidably supported along the slide guide face 29 formed on the outer periphery of the input shaft S 1. On the other hand, the rotation retainer 20B is rotatably supported by a thrust bearing 30 which is backed up by the flanges 25 and the input shaft S 1 to the mated above the support ring 28.

ここで、スラスト軸受３０をバックアップする支持リング２８は入力軸Ｓ１に圧入嵌合され、スライド案内面２９の端部に設けられた段部３１によって軸方向に位置決めされている。 Here, the support ring 28 that backs up the thrust bearing 30 is press-fitted to the input shaft S 1 , and is positioned in the axial direction by a step portion 31 provided at an end portion of the slide guide surface 29.

制御保持器２０Ａのフランジ２１と回転保持器２０Ｂのフランジ２５間には、制御保持器２０Ａの軸方向への移動を、その制御保持器２０Ａと回転保持器２０Ｂの相対的な回転運動に変換する運動変換機構としてのトルクカム４０が設けられている。   Between the flange 21 of the control holder 20A and the flange 25 of the rotary holder 20B, the movement of the control holder 20A in the axial direction is converted into a relative rotational movement of the control holder 20A and the rotary holder 20B. A torque cam 40 is provided as a motion conversion mechanism.

図２、図７および図８（ａ）に示すように、トルクカム４０は、制御保持器２０Ａのフランジ２１と回転保持器２０Ｂのフランジ２５の対向面それぞれに周方向の中央部で深く両端に至るに従って次第に浅くなる対向一対のカム溝４１、４２を設け、そのカム溝４１の一端部と他方のカム溝４２の他端部間にボール４３を組み込んだ構成としている。   As shown in FIG. 2, FIG. 7 and FIG. 8 (a), the torque cam 40 reaches both ends deeply at the center in the circumferential direction on the opposing surfaces of the flange 21 of the control holder 20A and the flange 25 of the rotary holder 20B. Accordingly, a pair of opposed cam grooves 41, 42 that gradually become shallower are provided, and a ball 43 is incorporated between one end of the cam groove 41 and the other end of the other cam groove 42.

カム溝４１、４２として、ここでは断面形状が円弧状の溝を示したが溝断面形状がＶ型の溝であってもよい。   Here, the cam grooves 41 and 42 are grooves having a circular cross section, but may be V-shaped grooves.

上記トルクカム４０は、制御保持器２０Ａのフランジ２１が回転保持器２０Ｂのフランジ２５に接近する方向に制御保持器２０Ａが軸方向に移動した際に、図８（ｂ）に示すように、ボール４３がカム溝４１、４２の溝深さの最も深い位置に向けて転がり移動し、制御保持器２０Ａと回転保持器２０Ｂをポケット２７の周方向幅が小さくなる方向に相対回転させるようになっている。   When the control holder 20A moves in the axial direction in the direction in which the flange 21 of the control holder 20A approaches the flange 25 of the rotary holder 20B, the torque cam 40 has a ball 43 as shown in FIG. Rolls toward the deepest groove depth of the cam grooves 41 and 42, and the control holder 20A and the rotary holder 20B are relatively rotated in the direction in which the circumferential width of the pocket 27 is reduced. .

図６に示すように、内輪１３には、入力軸Ｓ１に形成されたスライド案内面２９側の端部に、そのスライド案内面２９より大径のホルダ嵌合面４４が形成され、そのホルダ嵌合面４４にローラ１５および弾性部材１６の軸方向への脱落を防止する環状のばねホルダ４５が嵌合されている。 As shown in FIG. 6, the inner ring 13, the end of the slide guide face 29 side formed in the input shaft S 1, the large diameter of the holder fitting surface 44 from the slide guide face 29 is formed, the holder An annular spring holder 45 that prevents the roller 15 and the elastic member 16 from falling off in the axial direction is fitted to the fitting surface 44.

ばねホルダ４５は、内輪１３の軸方向端面に衝合する状態で軸方向に位置決めされている。図５および図６に示すように、ばねホルダ４５の外周には制御保持器２０Ａの柱部２２と回転保持器２０Ｂの柱部２６間に配置される複数の制動片４６が形成されている。   The spring holder 45 is positioned in the axial direction so as to abut against the axial end surface of the inner ring 13. As shown in FIGS. 5 and 6, a plurality of braking pieces 46 are formed on the outer periphery of the spring holder 45 between the column portion 22 of the control holder 20 </ b> A and the column portion 26 of the rotation holder 20 </ b> B.

複数の制動片４６は、制御保持器２０Ａと回転保持器２０Ｂとがポケット２７の周方向幅を縮小する方向に相対回転した際に、制御保持器２０Ａの柱部２２および回転保持器２０Ｂの柱部２６を両側縁で受け止めて対向一対のローラ１５を係合解除する中立位置に保持するようになっている。   When the control retainer 20A and the rotation retainer 20B rotate relative to each other in the direction of reducing the circumferential width of the pocket 27, the plurality of braking pieces 46 are aligned with the column portion 22 of the control retainer 20A and the columns of the rotation retainer 20B. The part 26 is received at both side edges and is held in a neutral position where the pair of opposed rollers 15 are disengaged.

ばねホルダ４５の外周部には、軸方向に延びて弾性部材１６の外側に張り出す保持片４７が形成され、その保持片４７によって弾性部材１６が一対のローラ１５間から脱落するのが防止されている。   A holding piece 47 that extends in the axial direction and extends outside the elastic member 16 is formed on the outer peripheral portion of the spring holder 45, and the holding piece 47 prevents the elastic member 16 from falling off between the pair of rollers 15. ing.

図１および図２に示すように、電磁クラッチ５０は、制御保持器２０Ａに形成された筒部２４の端面と軸方向で対向するアーマチュア５１と、そのアーマチュア５１と軸方向で対向するロータ５２と、そのロータ５２と軸方向で対向する電磁石５３とを有している。   As shown in FIGS. 1 and 2, the electromagnetic clutch 50 includes an armature 51 that faces the end face of the cylindrical portion 24 formed in the control holder 20 </ b> A in the axial direction, and a rotor 52 that faces the armature 51 in the axial direction. The rotor 52 has an electromagnet 53 facing in the axial direction.

アーマチュア５１は、入力軸Ｓ１に設けられた前述の支持リング２８によって回転自在かつスライド自在に支持されている。アーマチュア５１の外周部には連結筒５４が設けられ、その連結筒５４の内径面に制御保持器２０Ａの筒部２４が圧入されて、制御保持器２０Ａとアーマチュア５１が連結一体化されている。その連結によってアーマチュア５１は、支持リング２８の外周と入力軸Ｓ１の外周のスライド案内面２９の軸方向の２箇所においてスライド自在の支持とされる。 The armature 51 is supported to be freely rotatable and slidably by the input shaft S aforementioned support ring 28 provided on 1. A connecting cylinder 54 is provided on the outer periphery of the armature 51, and the cylinder 24 of the control holder 20A is press-fitted into the inner diameter surface of the connecting cylinder 54 so that the control holder 20A and the armature 51 are connected and integrated. Armature 51 by the Linking is the support of the slidable in two places in the axial direction of the outer peripheral of the input shaft the outer circumference of the slide guide face 29 of the S 1 of the support ring 28.

ロータ５２は、外・内周に外筒部５２ａおよび内筒部５２ｂを有し、その内筒部５２ｂが入力軸Ｓ１に圧入されている。また、ロータ５２は支持リング２８との間に組み込まれたシム５５によって軸方向に位置決めされている。 The rotor 52 has an outer cylindrical portion 52a and the inner cylinder portion 52b in the outer-periphery, the inner cylindrical portion 52b is press-fitted to the input shaft S 1. The rotor 52 is positioned in the axial direction by a shim 55 incorporated between the rotor 52 and the support ring 28.

電磁石５３は、電磁コイル５３ａおよびその電磁コイル５３ａを支持するコア５３ｂを有する。コア５３ｂはロータ５２の外筒部５２ａと内筒部５２ｂ間に組み込まれ、端部外周が静止部材としてのハウジング１の内径面で支持されて回り止めされている。   The electromagnet 53 has an electromagnetic coil 53a and a core 53b that supports the electromagnetic coil 53a. The core 53b is incorporated between the outer cylinder part 52a and the inner cylinder part 52b of the rotor 52, and the outer periphery of the end part is supported by the inner diameter surface of the housing 1 as a stationary member and is prevented from rotating.

図１に示すように、コア５３ｂの外側端面には軸受支持筒５６が設けられている。軸受支持筒５６の内部には入力軸Ｓ１を回転自在に支持する軸受５７が組み込まれている。軸受５７は、軸受支持筒５６の内周に取り付けた止め輪５８によって抜止めされている。 As shown in FIG. 1, a bearing support cylinder 56 is provided on the outer end surface of the core 53b. The interior of the bearing supporting tube 56 bearing 57 for rotatably supporting the input shaft S 1 is incorporated. The bearing 57 is retained by a retaining ring 58 attached to the inner periphery of the bearing support cylinder 56.

実施の形態で示す回転伝達装置は上記の構造からなり、図３は、２方向クラッチ１０のローラ１５が円筒面１２およびカム面１４に係合している状態を示す。その２方向クラッチ１０の係合状態で、電磁クラッチ５０の電磁コイル５３ａに通電すると、アーマチュア５１に磁気吸引力が作用し、アーマチュア５１が軸方向に移動してロータ５２に吸着される。   The rotation transmission device shown in the embodiment has the above structure, and FIG. 3 shows a state in which the roller 15 of the two-way clutch 10 is engaged with the cylindrical surface 12 and the cam surface 14. When the electromagnetic coil 53a of the electromagnetic clutch 50 is energized with the two-way clutch 10 engaged, a magnetic attractive force acts on the armature 51, and the armature 51 moves in the axial direction and is attracted to the rotor 52.

ここで、アーマチュア５１は制御保持器２０Ａに連結一体化されているため、アーマチュア５１の軸方向への移動に伴って制御保持器２０Ａは、そのフランジ２１が回転保持器２０Ｂのフランジ２５に接近する方向に移動する。   Here, since the armature 51 is connected and integrated with the control holder 20A, the flange 21 of the control holder 20A approaches the flange 25 of the rotary holder 20B as the armature 51 moves in the axial direction. Move in the direction.

このとき、トルクカム４０におけるボール４３が図８(ｂ)に示すように、カム溝４１、４２の溝深さの最も深い位置に向けて転がり移動し、制御保持器２０Ａと回転保持器２０Ｂはポケット２７の周方向幅が小さくなる方向に相対回転し、図４に示す対向一対のローラ１５が制御保持器２０Ａの柱部２２と回転保持器２０Ｂの柱部２６で押されて互いに接近する方向に移動する。   At this time, as shown in FIG. 8B, the ball 43 in the torque cam 40 rolls and moves toward the deepest groove depth of the cam grooves 41 and 42, and the control holder 20A and the rotary holder 20B 4 rotates in a direction in which the circumferential width of the roller 27 becomes smaller, and the pair of opposed rollers 15 shown in FIG. 4 are pushed by the column portion 22 of the control holder 20A and the column portion 26 of the rotation holder 20B so as to approach each other. Moving.

このため、ローラ１５は、図４に示すように、円筒面１２およびカム面１４に対して係合解除する中立位置に変位し、２方向クラッチ１０は係合解除状態とされる。   Therefore, as shown in FIG. 4, the roller 15 is displaced to the neutral position where the engagement with the cylindrical surface 12 and the cam surface 14 is released, and the two-way clutch 10 is disengaged.

２方向クラッチ１０の係合解除状態において、入力軸Ｓ１に回転トルクを入力して内輪１３を一方向に回転すると、ばねホルダ４５に形成された制動片４６が制御保持器２０Ａの柱部２２と回転保持器２０Ｂの柱部２６の一方を押圧するため、内輪１３と共に制御保持器２０Ａおよび回転保持器２０Ｂが回転する。このとき、対向一対のローラ１５は係合解除された中立位置に保持されているため、内輪１３の回転は外輪１１に伝達されず、内輪１３はフリー回転する。 In the disengaged state of the two-way clutch 10, the input shaft rotates the inner ring 13 in one direction by inputting the rotational torque into S 1, the column portion 22 of the braking members 46 formed on the spring holder 45 is controlled retainer 20A In order to press one of the column parts 26 of the rotary cage 20B, the control cage 20A and the rotary cage 20B rotate together with the inner ring 13. At this time, since the pair of opposed rollers 15 is held in the neutral position where the engagement is released, the rotation of the inner ring 13 is not transmitted to the outer ring 11 and the inner ring 13 rotates freely.

内輪１３のフリー回転状態において、電磁コイル５３ａに対する通電を解除すると、アーマチュア５１は吸着が解除されて回転自在かつスライド自在となる。その吸着解除により、一対のローラ１５間に組み込まれた弾性部材１６の押圧によって制御保持器２０Ａと回転保持器２０Ｂがポケット２７の周方向幅が大きくなる方向に相対回転し、対向一対のローラ１５のそれぞれが、図３に示すように、円筒面１２およびカム面１４に係合するスタンバイ状態とされ、その対向一対のローラ１５の一方を介して内輪１３と外輪１１の相互間で一方向の回転トルクが伝達される。   When the energization of the electromagnetic coil 53a is released in the free rotation state of the inner ring 13, the armature 51 is released from the suction and becomes rotatable and slidable. By releasing the suction, the control holder 20A and the rotary holder 20B are relatively rotated in the direction in which the circumferential width of the pocket 27 is increased by the pressing of the elastic member 16 incorporated between the pair of rollers 15, and the pair of opposed rollers 15. As shown in FIG. 3, each of them is in a standby state in which it engages with the cylindrical surface 12 and the cam surface 14, and is unidirectional between the inner ring 13 and the outer ring 11 via one of the pair of opposed rollers 15. Rotational torque is transmitted.

ここで、入力軸Ｓ１を停止して、その入力軸Ｓ１の回転方向を切換えると、他方のローラ１５を介して内輪１３の回転が外輪１１に伝達される。 Here, when the input shaft S 1 is stopped and the rotation direction of the input shaft S 1 is switched, the rotation of the inner ring 13 is transmitted to the outer ring 11 via the other roller 15.

このように、電磁コイル５３ａに対する通電の遮断により、制御保持器２０Ａと回転保持器２０Ｂがポケット２７の周方向幅が大きくなる方向に相対回転して、対向一対のローラ１５のそれぞれが円筒面１２およびカム面１４に直ちに噛み込むスタンバイ状態とされるため、回転方向ガタは小さく、内輪１３の回転を外輪１１に直ちに伝達することができる。   As described above, when the energization of the electromagnetic coil 53a is interrupted, the control holder 20A and the rotary holder 20B are relatively rotated in the direction in which the circumferential width of the pocket 27 is increased, and each of the pair of opposed rollers 15 is cylindrical surface 12. Further, since the standby state in which the cam surface 14 is immediately engaged is set, the rotation direction play is small, and the rotation of the inner ring 13 can be immediately transmitted to the outer ring 11.

ここで、回転保持器２０Ｂを回転自在に支持するスラスト軸受３０のバックアップ部材としての支持リング２８は、図２に示すように、入力軸Ｓ１に圧入嵌合され、その円筒状の外径面で制御保持器２０Ａに連結されたアーマチュア５１をスライド自在かつ回転自在に支持する構成であるため、一度圧入すると分解することができず、回転伝達装置の組立工程において、部品の組込み忘れや組間違いが生じて分解が必要になると、支持リング２８やアーマチュア５１等の部品を破壊して分解する必要が生じ、破損した部品は新しい部品と交換しなければならず、コスト面や分解作業の効率化の面で非常に不利となる。 Here, the support ring 28 as a backup member of the thrust bearing 30 that rotatably supports the rotating cage 20B, as shown in FIG. 2, press-fitted to the input shaft S 1, the outer diameter surface of the cylindrical Since the armature 51 connected to the control holder 20A is slidably and rotatably supported, the armature 51 cannot be disassembled once press-fitted. If disassembly is required and parts need to be disassembled, parts such as the support ring 28 and the armature 51 need to be destroyed and disassembled, and the damaged parts must be replaced with new parts. Is very disadvantageous.

そのような不都合を解消するため、図９乃至図１２に示すように、支持リング２８に図１４に示す引抜き用治具Ｔが係合可能な係合凹部６０を設け、その係合凹部６０に対する引抜き用治具Ｔの係合により支持リング２８を引抜きによって分解し得る構成としている。   In order to eliminate such inconvenience, as shown in FIGS. 9 to 12, the support ring 28 is provided with an engagement recess 60 that can be engaged with the extraction jig T shown in FIG. The support ring 28 can be disassembled by pulling out by engaging the pulling jig T.

ここで、引抜き用治具Ｔは、入力軸Ｓ１が挿通可能な中心孔を有する環状のハンドル部Ｈの片面外周部に複数の軸部Ｂを周方向に等間隔に設け、各軸部Ｂの先端に周方向に向くＬ形鉤部Ｆを設けた構成とされている。 Here, pull jig T is provided at regular intervals a plurality of shaft portions B in the circumferential direction on one side an outer peripheral portion of the annular handle H the input shaft S 1 having an insertion possible central bore, the shaft portions B It is set as the structure which provided the L-shaped collar part F which faces the circumferential direction at the front-end | tip.

一方、支持リング２８に形成された係合凹部６０は、上記引抜き用治具Ｔの軸部Ｂと同数とされ、その複数の係合凹部６０が軸部Ｂと同一円上に同一の角度配置でもって形成されており、それぞれの係合凹部６０が、Ｌ形鉤部Ｆを挿通可能とする挿通孔６１と、その挿通孔６１の一端部に連通して周方向に向く凹段部６２とを有してなる段差付き孔からなり、上記凹段部６２にＬ形鉤部Ｆが係合可能とされている。   On the other hand, the number of engagement recesses 60 formed in the support ring 28 is the same as the number of the shaft portions B of the extraction jig T, and the plurality of engagement recesses 60 are arranged at the same angle on the same circle as the shaft portions B. Each of the engaging recesses 60 is formed with an insertion hole 61 through which the L-shaped flange portion F can be inserted, and a concave stepped portion 62 that communicates with one end of the insertion hole 61 and faces in the circumferential direction. The L-shaped flange portion F can be engaged with the concave step portion 62.

いま、引抜き用治具Ｔの鉤部Ｆを挿通孔６１に挿入すると、その鉤部Ｆは支持リング２８によってバックアップされるスラスト軸受３０に当接して挿入量が規制される。その規制状態で引抜き用治具Ｔを回転すると、図１１の鎖線で示すように、鉤部Ｆが凹段部６２に係合する。   Now, when the flange portion F of the extraction jig T is inserted into the insertion hole 61, the flange portion F comes into contact with the thrust bearing 30 backed up by the support ring 28, and the insertion amount is restricted. When the extraction jig T is rotated in the restricted state, the flange portion F is engaged with the concave step portion 62 as shown by a chain line in FIG.

凹段部６２に対する鉤部Ｆの係合状態で引抜き用治具Ｔに引張り力を付与することにより、入力軸Ｓ１の外径面に沿って支持リング２８がスライドし、入力軸Ｓ１の圧入部から支持リング２８を引き抜くことができ、部品を破壊することなく支持リング２８を分解することができる。 By applying a pulling force to pull jig T in the engaged state of the hook F for recessed step 62, the support ring 28 slides along the outer diameter surface of the input shaft S 1, the input shaft S 1 The support ring 28 can be pulled out from the press-fit portion, and the support ring 28 can be disassembled without destroying the parts.

図１３（ａ）、（ｂ）は係合凹部６０の他の例を示している。この例においては、引抜き用治具Ｔの鉤部Ｆが挿通可能な挿通孔６１の両端部に周方向に向く凹段部６２を相反する方向に向けて形成している。   FIGS. 13A and 13B show another example of the engaging recess 60. In this example, concave step portions 62 facing in the circumferential direction are formed in opposite directions at both end portions of the insertion hole 61 through which the flange portion F of the extraction jig T can be inserted.

上記のように、挿通孔６１の両端部に相反する方向に向けて凹段部６２を形成すると、段差付き孔からなる係合凹部６０は支持リング２８の表裏において同一形状となり、支持リング２８の組込みに際しての方向性がなくなり、支持リング２８の組込みの容易化を図ることができる。   As described above, when the recessed step portion 62 is formed in the opposite direction to both ends of the insertion hole 61, the engagement recessed portion 60 formed of the stepped hole has the same shape on the front and back of the support ring 28. The directionality at the time of assembling is lost, and the assembling of the support ring 28 can be facilitated.

ここで、図１２および図１３に示す支持リング２８においては型成形により形成することができる。そこで、実施の形態では、支持リング２８を金属粉末の焼結成形品として、製造コストを低減しているが、焼結成形品に代えて鍛造品としてもよい。   Here, the support ring 28 shown in FIGS. 12 and 13 can be formed by molding. Thus, in the embodiment, the manufacturing cost is reduced by using the support ring 28 as a sintered molded product of metal powder, but a forged product may be used instead of the sintered molded product.

図１２および図１３においては、係合凹部としての段差付き孔６０の数を五つとし、凹段部６２を周方向に向く向きとしているが、段差付き孔６０の数および凹段部６２の向きはこれに限定されるものではない。   12 and 13, the number of the stepped holes 60 as the engaging recesses is five and the concave stepped portion 62 is oriented in the circumferential direction. However, the number of the stepped holes 60 and the number of the concave stepped portions 62 are The direction is not limited to this.

図１５（ａ）、（ｂ）乃至図１７（ａ）、（ｂ）では、二つの段差付き孔６０を周方向の対向位置に設け、その段差付き孔６０における凹段部６２を径方向に向く向きとしている。ここで、図１５（ａ）、（ｂ）では、支持リング２８の径方向幅の中間部に段差付き孔６０を設けた例を示し、また、図１６（ａ）、（ｂ）では、支持リング２８の外周対向位置に設けた例を示している。さらに、図１７（ａ）、（ｂ）では、支持リング２８の内周対向位置に設けた例を示している。   15 (a), 15 (b) to 17 (a), (b), two stepped holes 60 are provided at opposite positions in the circumferential direction, and the concave stepped portion 62 in the stepped hole 60 is provided in the radial direction. The direction is facing. Here, FIGS. 15A and 15B show an example in which a stepped hole 60 is provided in the intermediate portion of the radial width of the support ring 28, and FIGS. 16A and 16B show the support. The example provided in the outer periphery opposing position of the ring 28 is shown. Further, FIGS. 17A and 17B show an example in which the support ring 28 is provided at a position facing the inner periphery.

上記いずれの例においても、引抜き用治具Ｔの先端部に設けられた鉤部Ｆを凹段部６２に係合させて、引抜き用治具Ｔに引張り力を付与することで支持リング２８を分解することができる。また、支持リング２８を金属粉末の焼結成形や鍛造によって簡単に形成することができる。   In any of the above examples, the support ring 28 is provided by applying a tensile force to the extraction jig T by engaging the flange portion F provided at the tip of the extraction jig T with the concave stepped portion 62. Can be disassembled. Further, the support ring 28 can be easily formed by sintering or forging metal powder.

ここで、径方向に向く凹段部６２を挿通孔６１の両端部から同方向に向けて設けると、段差付き孔６０を支持リング２８の表裏において同一形状とすることができ、支持リングの組込みの方向性をなくし、向きの誤った組込みを防止することができる。   Here, if the concave step portion 62 facing in the radial direction is provided in the same direction from both ends of the insertion hole 61, the stepped hole 60 can be formed in the same shape on both sides of the support ring 28, and the support ring is incorporated. It is possible to eliminate the directionality of and prevent incorrect installation.

図１８（ａ）、（ｂ）は、係合凹部６０の他の例を示す。この例においては、ボルトからなる引抜き用治具Ｔをねじ込み可能とするねじ孔６０を係合凹部とし、その係合凹部としての複数のねじ孔６０を周方向に間隔をおいて形成している。   FIGS. 18A and 18B show another example of the engaging recess 60. In this example, a screw hole 60 capable of screwing a drawing jig T made of a bolt is used as an engagement recess, and a plurality of screw holes 60 as the engagement recess are formed at intervals in the circumferential direction. .

上記ねじ孔６０に引抜き用治具Ｔをねじ係合して引張り力を付与することで支持リング２８を分解することができる。   The support ring 28 can be disassembled by applying a tensile force by screwing the extraction jig T into the screw hole 60.

Ｓ１ 入力軸
Ｓ２ 出力軸
１１ 外輪
１３ 内輪
１５ ローラ（係合子）
１６ 弾性部材
２０Ａ 制御保持器
２０Ｂ 回転保持器
２２ 柱部
２６ 柱部
２７ ポケット
２８ 支持リング
３０ スラスト軸受
４０ トルクカム(運動変換機構)
５０ 電磁クラッチ
５３ 電磁石
６０ 係合凹部
６１ 挿通孔
６２ 凹段部 S 1 input shaft S 2 output shaft 11 outer ring 13 inner ring 15 roller (engagement element)
16 Elastic member 20A Control retainer 20B Rotation retainer 22 Column 26 Column 27 Pocket 28 Support ring 30 Thrust bearing 40 Torque cam (motion conversion mechanism)
50 Electromagnetic clutch 53 Electromagnet 60 Engaging recess 61 Insertion hole 62 Recessed step

Claims (9)

入力軸（Ｓ１）と、その入力軸（Ｓ１）と同軸上に配置された出力軸（Ｓ２）の相互間において回転の伝達と遮断とを行なう２方向クラッチ（１０）と、前記入力軸（Ｓ１）上に設けられて２方向クラッチ（１０）の係合および解除を制御する電磁クラッチ（５０）を有し、
前記２方向クラッチ（１０）が、前記出力軸（Ｓ２）の軸端部に設けられた外輪（１１）の内周と前記入力軸（Ｓ１）の軸端部に設けられた内輪（１３）の外周間に、制御保持器（２０Ａ）および回転保持器（２０Ｂ）のそれぞれに設けられた柱部（２２、２６）が周方向に交互に配置される組み込みとされ、隣接する柱部（２２、２６）間に形成されたポケット（２７）内に前記外輪（１１）の内周および内輪（１３）の外周に対して係合可能な一対の係合子（１５）と、その一対の係合子（１５）を離反する方向に付勢する弾性部材（１６）とが組み込まれ、前記制御保持器（２０Ａ）が軸方向に移動自在に支持され、前記回転保持器（２０Ｂ）が前記入力軸（Ｓ１）に圧入された支持リング（２８）との間に組み込まれたスラスト軸受（３０）によって回転自在に支持された構成とされ、
前記電磁クラッチ（５０）の電磁石（５３）への通電により前記制御保持器（２０Ａ）を前記支持リング（２８）に向けて移動させ、その制御保持器（２０Ａ）と回転保持器（２０Ｂ）の相互間に組み込まれた運動変換機構（４０）によりポケット（２７）の周方向幅が小さくなる方向に制御保持器（２０Ａ）と回転保持器（２０Ｂ）を相対回転させて一対の係合子（１５）を係合解除させるようにした回転伝達装置において、
前記支持リング（２８）に引抜き用治具（Ｔ）が係脱可能とされ、その係合状態で係合部位に軸方向力が付与可能な複数の係合凹部（６０）を周方向に間隔をおいて設けたことを特徴とする回転伝達装置。 An input shaft (S 1), and the input shaft (S 1) disposed coaxially with the output shaft (S 2) 2-way clutch which performs the blocking and transmission of rotation between each other (10), the input An electromagnetic clutch (50) provided on the shaft (S 1 ) for controlling engagement and disengagement of the two-way clutch (10);
The two-way clutch (10) includes an inner ring (13) provided at an inner periphery of an outer ring (11) provided at a shaft end portion of the output shaft (S 2 ) and a shaft end portion of the input shaft (S 1 ). ) Between the outer circumferences of the control cage (20A) and the rotary cage (20B), the column portions (22, 26) provided alternately are arranged in the circumferential direction, and adjacent column portions ( 22 and 26) a pair of engagement elements (15) engageable with the inner periphery of the outer ring (11) and the outer periphery of the inner ring (13) in a pocket (27) formed between the outer ring (11) and the pair of engagements. And an elastic member (16) for urging the lever (15) in the direction of separating, the control holder (20A) is supported so as to be movable in the axial direction, and the rotary holder (20B) is connected to the input shaft. thrust incorporated between the (S 1) to press-fit the support ring (28) Is freely supported configurations rotated by receiving (30),
By energizing the electromagnet (53) of the electromagnetic clutch (50), the control retainer (20A) is moved toward the support ring (28), and the control retainer (20A) and the rotation retainer (20B) The control retainer (20A) and the rotational retainer (20B) are rotated relative to each other in the direction in which the circumferential width of the pocket (27) is reduced by the motion conversion mechanism (40) incorporated between the pair of engagement elements (15 ) Is disengaged,
A pulling jig (T) can be engaged with and disengaged from the support ring (28), and a plurality of engaging recesses (60) capable of applying an axial force to the engaging portion in the engaged state are spaced in the circumferential direction. A rotation transmission device characterized in that the rotation transmission device is provided. 前記係合凹部（６０）が、前記引抜き用治具（Ｔ）に設けられたＬ形鉤部（Ｆ）が挿通可能な挿通孔（６１）と、その挿通孔（６１）の端部に連通して前記鉤部（Ｆ）が係合可能な凹段部（６２）とを有する段差付き孔からなる請求項１に記載の回転伝達装置。   The engaging recess (60) communicates with an insertion hole (61) through which an L-shaped flange (F) provided in the extraction jig (T) can be inserted, and an end of the insertion hole (61). The rotation transmission device according to claim 1, further comprising a stepped hole having a recessed step portion (62) with which the flange portion (F) can be engaged. 前記段差付き孔の凹段部（６２）が支持リング（２８）の周方向に向けて設けられた請求項２に記載の回転伝達装置。   The rotation transmission device according to claim 2, wherein the stepped portion (62) of the stepped hole is provided toward the circumferential direction of the support ring (28). 前記段差付き孔（６０）の凹段部（６２）が前記挿通孔（６１）の両端部から相反する方向に向けて形成されて、前記支持リング（２８）の表裏において段差付き孔（６０）が同一形状とされた請求項２に記載の回転伝達装置。   A stepped portion (62) of the stepped hole (60) is formed in opposite directions from both ends of the insertion hole (61), and the stepped hole (60) is formed on the front and back of the support ring (28). The rotation transmission device according to claim 2, wherein the two have the same shape. 前記段差付き孔（６０）の凹段部（６２）が支持リング（２８）の径方向に向けて設けられた請求項２に記載の回転伝達装置。   The rotation transmission device according to claim 2, wherein the stepped portion (62) of the stepped hole (60) is provided in a radial direction of the support ring (28). 前記段差付き孔（６０）が、支持リング（２８）の内周部または外周部に形成された請求項５に記載の回転伝達装置。   The rotation transmission device according to claim 5, wherein the stepped hole (60) is formed in an inner peripheral portion or an outer peripheral portion of the support ring (28). 前記支持リング（２８）を金属粉末の焼結成形品または鍛造品とした請求項１乃至６のいずれか１項に記載の回転伝達装置。   The rotation transmission device according to any one of claims 1 to 6, wherein the support ring (28) is a sintered or forged product of metal powder. 前記係合凹部（６０）が、ボルトからなる引抜き用治具（Ｔ）をねじ込み可能なねじ孔からなる請求項１に記載の回転伝達装置。   The rotation transmission device according to claim 1, wherein the engaging recess (60) is a screw hole into which a drawing jig (T) made of a bolt can be screwed. ステアバイワイヤ用に適用された請求項１乃至８のいずれかに記載の回転伝達装置。   The rotation transmission device according to claim 1, which is applied to steer-by-wire.
JP2014246631A 2014-12-05 2014-12-05 Rotation transmission device Pending JP2016109195A (en)

Priority Applications (2)

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JP2014246631A JP2016109195A (en) 2014-12-05 2014-12-05 Rotation transmission device
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JP2005308052A (en) * 2004-04-20 2005-11-04 Ntn Corp Rotation transmitting device
JP6103905B2 (en) * 2012-01-25 2017-03-29 Ntn株式会社 Rotation transmission device

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