JP2001108035A - Feeder and continuously variable transmission using same - Google Patents

Feeder and continuously variable transmission using same

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Publication number
JP2001108035A
JP2001108035A JP29210199A JP29210199A JP2001108035A JP 2001108035 A JP2001108035 A JP 2001108035A JP 29210199 A JP29210199 A JP 29210199A JP 29210199 A JP29210199 A JP 29210199A JP 2001108035 A JP2001108035 A JP 2001108035A
Authority
JP
Japan
Prior art keywords
groove
movable
groove pulley
flange
pulley
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.)
Granted
Application number
JP29210199A
Other languages
Japanese (ja)
Other versions
JP4075250B2 (en
Inventor
Masahiro Inoue
昌弘 井上
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koyo Seiko Co Ltd
Original Assignee
Koyo Seiko Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Koyo Seiko Co Ltd filed Critical Koyo Seiko Co Ltd
Priority to JP29210199A priority Critical patent/JP4075250B2/en
Publication of JP2001108035A publication Critical patent/JP2001108035A/en
Application granted granted Critical
Publication of JP4075250B2 publication Critical patent/JP4075250B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To reduce the manufacturing cost by constituting a feeder fitted to simplification, miniaturizing, and lightening. SOLUTION: This feeder, which is used for a continuously variable transmission having a main driving side V-groove pulley 3 and a driven side V-groove pulley 4 forming V grooves 6, 7 of respective fixed flanges 8, 10 and movable flanges 9, 11 and having a V belt 5 wound across the driving and driven pulleys, and axially slides the movable flange of the main driving side V-groove pulley so as to vary the winding diameters of the belt to the both pulleys, is provided with a fixed annulus 20 fixedly arranged coaxially with the main driving side V-groove pulley and having a spiral groove 27 in its outer circumference, a movable annulus 21 arranged in the outer circumference of the fixed annulus and having a spiral groove 31 in its inner circumference, a plurality of balls 34 interposed between respective spiral grooves of the movable annulus and the fixed annulus, and a plurality of pockets 35 holding the respective balls in the non-separated states for the constitution having an annulus ring-shaped holder 28.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、無段変速機におけ
る主動側Ｖ溝プーリの可動フランジを軸方向に送るのに
用いられる送り装置ならびにこれを用いた無段変速機に
関する。この無段変速機は、エンジン出力を無段階に変
速する乾式の無段変速機である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a feeder used for feeding a movable flange of a V-groove pulley on the driving side in an axial direction in a continuously variable transmission, and a continuously variable transmission using the same. This continuously variable transmission is a dry-type continuously variable transmission that continuously changes the engine output.

【０００２】[0002]

【従来の技術】このような無段変速機には、エンジンか
らの入力軸に連結された主動側Ｖ溝プーリと、車輪への
出力軸に連結された従動側Ｖ溝プーリとの間にＶベルト
を巻き掛けし、変速時に両プーリのＶベルト巻き掛け径
を変更してエンジン出力を無段階に変更して出力軸に伝
達するようになっているものがある。2. Description of the Related Art In such a continuously variable transmission, a V-groove pulley connected to an input shaft from an engine and a driven V-groove pulley connected to an output shaft to wheels are provided. There is a type in which a belt is wound around and the V-belt winding diameter of both pulleys is changed at the time of shifting to change the engine output steplessly and transmit it to the output shaft.

【０００３】主動側Ｖ溝プーリと従動側Ｖ溝プーリは、
共に、固定フランジと可動フランジとでＶ溝を形成し、
主動側Ｖ溝プーリの可動フランジを軸方向にスライドさ
せて両プーリに対するＶベルトの巻き掛け径を可変させ
るようになっている。[0003] The driven V-groove pulley and the driven V-groove pulley are
In both cases, a V-groove is formed by the fixed flange and the movable flange,
The movable flange of the V-groove pulley on the driving side is slid in the axial direction to change the diameter of the V-belt wound around both pulleys.

【０００４】従来の無段変速機において、こうした主動
側Ｖ溝プーリの可動フランジを軸方向にスライドさせる
のに用いられる送り装置は、主動側Ｖ溝プーリと同軸状
に配設され外周に螺旋溝を有する固定環と、この固定環
の外周に配設され内周に螺旋溝を備える可動環と、この
固定環と可動環との間に介装されて該可動環に付与され
る回転動力を軸方向推進力に変換するボール循環ユニッ
トとから構成されている。In a conventional continuously variable transmission, a feeder used to slide the movable flange of such a driving-side V-groove pulley in the axial direction is provided with a spiral groove on the outer periphery coaxially with the driving-side V-groove pulley. A movable ring provided on the outer periphery of the fixed ring and having a spiral groove on the inner periphery, and a rotating power provided between the fixed ring and the movable ring and applied to the movable ring. And a ball circulation unit that converts the driving force into an axial driving force.

【０００５】このボール循環ユニットは、固定環と可動
環それぞれの螺旋溝間に介装される複数のボールと、こ
のボールを可動環と固定環それぞれの対向螺旋溝の一方
側から他方側に循環させるサーキュレータチューブとか
ら構成されている。The ball circulation unit includes a plurality of balls interposed between spiral grooves of a fixed ring and a movable ring, and the balls are circulated from one side of the spiral grooves of the movable ring and the fixed ring to the other side. And a circulator tube.

【０００６】[0006]

【発明が解決しようとする課題】しかしながら、このよ
うなサーキュレータチューブを用いた送り装置の構成は
複雑かつ大掛かりなものであり、また、これを用いた無
段変速機全体の構成を大型重量化させ、しかもその製造
コストを高くつかせるものとなっている。However, the construction of the feeder using such a circulator tube is complicated and large-scale, and the whole construction of the continuously variable transmission using the same is increased in size and weight. In addition, the manufacturing cost can be increased.

【０００７】したがって、本発明は、送り装置におい
て、簡易な構成とすることを解決すべき課題としてい
る。Therefore, an object of the present invention is to provide a feeder having a simple configuration.

【０００８】本発明はまた、無段変速機において、前記
送り装置を用いて全体の構成を小型軽量で、かつ製造コ
スト的に有利となるようにすることを課題としている。Another object of the present invention is to provide a continuously variable transmission in which the overall structure is reduced in size and weight by using the feeder and is advantageous in terms of manufacturing cost.

【０００９】[0009]

【課題を解決するための手段】本発明の送り装置は、各
々固定フランジと可動フランジとでＶ溝を形成する主動
側Ｖ溝プーリおよび従動側Ｖ溝プーリと、前記両プーリ
間に巻き掛けられるＶベルトとを有した無段変速機に用
いられて、前記主動側Ｖ溝プーリの可動フランジを軸方
向にスライドさせて前記両プーリに対するベルトの巻き
掛け径を可変させる送り装置であって、前記主動側Ｖ溝
プーリと同軸状に固定配設が可能でかつ外周に螺旋溝が
設けられる固定環と、前記固定環の外周に配設されて内
周に螺旋溝が設けられる可動環と、前記可動環と固定環
それぞれの螺旋溝間に介装される複数のボールと、前記
ボールそれぞれを非分離状態に保持する複数のポケット
とが形成されている円環状の保持器とを有していること
を特徴としている。A feeder according to the present invention is wound around a driving V-groove pulley and a driven V-groove pulley, each of which forms a V-groove with a fixed flange and a movable flange, and the two pulleys. A feed device used in a continuously variable transmission having a V-belt, wherein a movable flange of the driving-side V-groove pulley is slid in an axial direction to vary a winding diameter of the belt around the two pulleys, A fixed ring that can be fixedly disposed coaxially with the driving-side V-groove pulley and has a spiral groove on the outer periphery; a movable ring that is disposed on the outer periphery of the fixed ring and has a spiral groove on the inner periphery; It has a plurality of balls interposed between the spiral grooves of the movable ring and the fixed ring, and an annular retainer formed with a plurality of pockets for holding the balls in a non-separable state. Is characterized by

【００１０】なお、この場合、前記スライドの意義は、
移動、摺動、等を含む広い概念に解釈され、また、主動
側Ｖ溝プーリと同軸状の意義は、このプーリそのものと
同軸状の場合のみならずこれが軸に固定された場合、こ
の軸に対して同軸状の場合も含む広い概念に解釈され
る。[0010] In this case, the significance of the slide is as follows.
It can be interpreted as a wide concept including movement, sliding, etc., and the meaning of coaxial with the driving side V-groove pulley is not only when it is coaxial with this pulley itself but also when it is fixed to a shaft. On the other hand, it can be interpreted as a broad concept including a coaxial case.

【００１１】好ましくは、前記送り装置は、前記保持器
の所定以上の軸方向移動を規制する規制部材を備えてい
る。[0011] Preferably, the feeder includes a regulating member that regulates a predetermined or more axial movement of the retainer.

【００１２】本発明の無段変速機は、各々固定フランジ
と可動フランジとでＶ溝を形成する主動側Ｖ溝プーリお
よび従動側Ｖ溝プーリと、前記両プーリ間に巻き掛けら
れるＶベルトと、前記主動側Ｖ溝プーリの可動フランジ
を軸方向にスライドさせて前記両プーリに対するベルト
の巻き掛け径を可変させる操作ユニットとを備え、前記
操作ユニットが、動力源と、送り装置とを備え、前記動
力源は、前記送り装置に回転動力を付与するものであ
り、前記送り装置は、前記主動側Ｖ溝プーリと同軸状に
固定配設されかつ外周に螺旋溝が設けられる固定環と、
前記固定環の外周に配設されて前記動力源から回転動力
を付与されるものであってその内周に螺旋溝が設けられ
る可動環と、前記可動環と固定環それぞれの螺旋溝間に
介装される複数のボールと、前記ボールそれぞれを非分
離状態に保持する複数のポケットとが形成されている円
環状の保持器とを有していることを特徴としている。A continuously variable transmission according to the present invention includes a driving V-groove pulley and a driven V-groove pulley, each of which forms a V-groove with a fixed flange and a movable flange, a V-belt wound between the pulleys, An operating unit that slides a movable flange of the driving-side V-groove pulley in an axial direction to change a winding diameter of a belt around the two pulleys, wherein the operating unit includes a power source and a feeder, A power source for applying rotational power to the feed device, wherein the feed device is fixedly disposed coaxially with the driving-side V-groove pulley, and has a fixed ring provided with a spiral groove on the outer periphery;
A movable ring provided on the outer periphery of the fixed ring to which rotational power is applied from the power source and having a spiral groove formed on the inner periphery thereof; and a movable ring provided between the movable ring and the fixed ring. It is characterized by having an annular retainer in which a plurality of balls to be mounted and a plurality of pockets for holding the balls in a non-separable state are formed.

【００１３】[0013]

【発明の実施の形態】以下、本発明の詳細について図１
ないし図４で示される実施形態を参照して詳細に説明す
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to FIG.
This will be described in detail with reference to the embodiment shown in FIGS.

【００１４】図１は、本発明の乾式の無段変速機の要部
の縦断面図、図２は、図１の送り装置における高速回転
状態の拡大断面図、図３は、図１の送り装置における低
速回転状態の拡大断面図、図４は、図１の送り装置が備
える保持器の拡大斜視図、図５は、図４の断面図であ
る。FIG. 1 is a longitudinal sectional view of a main part of a dry-type continuously variable transmission according to the present invention, FIG. 2 is an enlarged sectional view of the feeder of FIG. 1 in a high-speed rotation state, and FIG. FIG. 4 is an enlarged perspective view of a retainer included in the feeder of FIG. 1, and FIG. 5 is a cross-sectional view of FIG. 4.

【００１５】これらの図に示される実施形態の無段変速
機は、径方向に互いに平行に配置された入力軸１と出力
軸２とを備える。入力軸１は、不図示のエンジン出力に
応じた回転数で回転される一方、出力軸２は、不図示の
車輪に動力を伝達する。The continuously variable transmission according to the embodiment shown in these figures has an input shaft 1 and an output shaft 2 arranged in parallel in the radial direction. The input shaft 1 is rotated at a rotational speed corresponding to the engine output (not shown), while the output shaft 2 transmits power to wheels (not shown).

【００１６】主動側Ｖ溝プーリ３は、入力軸１に連結さ
れている。The driving side V-groove pulley 3 is connected to the input shaft 1.

【００１７】従動側Ｖ溝プーリ４は、出力軸２に連結さ
れている。The driven V-groove pulley 4 is connected to the output shaft 2.

【００１８】Ｖリブドベルト（ベルトと略称）５は、両
プーリ３，４それぞれのＶ溝６，７間に巻き掛けられ
る。A V-ribbed belt (abbreviated as a belt) 5 is wound between V-grooves 6 and 7 of both pulleys 3 and 4, respectively.

【００１９】両プーリ３，４のベルト５の巻き掛け径
は、変速時に変更され、これによって、エンジン出力が
無段階に変更されて出力軸２に伝達されるようになって
いる。The winding diameter of the belt 5 between the two pulleys 3 and 4 is changed at the time of gear shifting, whereby the engine output is changed steplessly and transmitted to the output shaft 2.

【００２０】主動側Ｖ溝プーリ３は、入力軸１に固定さ
れた固定フランジ８と、入力軸１に同軸状に配設されそ
の基端部９ａが固定フランジ８の基端部８ａとスプライ
ン嵌合して軸方向移動可能かつ固定フランジ８と一体回
転可能に配設された可動フランジ９とを有する。両フラ
ンジ８，９は互いの対向面が円錐面になっていて、両対
向面間で前記Ｖ溝６が構成されている。The driving side V-groove pulley 3 has a fixed flange 8 fixed to the input shaft 1, and is coaxially arranged on the input shaft 1, and its base end 9 a is spline-fitted to the base end 8 a of the fixed flange 8. It has a movable flange 9 which is arranged to be movable in the axial direction and to be rotatable integrally with the fixed flange 8. The opposite surfaces of the flanges 8 and 9 are conical surfaces, and the V groove 6 is formed between the opposite surfaces.

【００２１】従動側Ｖ溝プーリ４は、出力軸２に固定さ
れた固定フランジ１０と、出力軸２に同軸状に配設され
その基端部１１ａが固定フランジ１０の基端部１０ａと
スプライン回転して軸方向移動可能かつ固定フランジ１
０と一体回転可能に配設された可動フランジ１１とを有
する。両フランジ１０，１１は互いの対向面が円錐面に
なっていて、両対向面間で前記Ｖ溝７が構成されてい
る。可動フランジ１１はまた、不図示のバネ部材で固定
フランジ１０に向けて常時付勢されている。The driven V-groove pulley 4 has a fixed flange 10 fixed to the output shaft 2, and is coaxially disposed on the output shaft 2, and its base end 11 a is spline-rotated with the base end 10 a of the fixed flange 10. Axially movable and fixed flange 1
0 and a movable flange 11 disposed integrally rotatable. The two flanges 10 and 11 have conical surfaces facing each other, and the V-groove 7 is formed between the two opposing surfaces. The movable flange 11 is constantly urged toward the fixed flange 10 by a spring member (not shown).

【００２２】操作ユニット１３は、主動側Ｖ溝プーリ３
の可動フランジ９を軸方向にスライドさせて両プーリ
３，４に対するＶベルト５の巻き掛け径を可変させて無
段変速操作を行うためのものであり、動力源１４と、送
り装置１５とを含む。The operation unit 13 includes the driving side V-groove pulley 3
The movable power source 14 and the feeder 15 are provided for sliding the movable flange 9 in the axial direction to change the winding diameter of the V-belt 5 around both pulleys 3 and 4 to perform a continuously variable transmission operation. Including.

【００２３】動力源１４は、変速用アクチュエータモー
タ１６と、このモータ１６の軸に固定された第１ギヤ１
７、この第１ギヤ１７に噛合する第２ギヤ１８および第
２ギヤ１８に噛合する第３ギヤ１９からなるギヤ列とか
らなる。The power source 14 includes a speed change actuator motor 16 and a first gear 1 fixed to a shaft of the motor 16.
7, a gear train including a second gear 18 meshing with the first gear 17 and a third gear 19 meshing with the second gear 18.

【００２４】第３ギヤ１９は軸方向に延び、軸方向一端
側外周のギヤ部分１９ａが第２ギヤ１８に噛合する一
方、軸方向他端側外周のギヤ部分１９ｂは軸方向に長く
なっている。The third gear 19 extends in the axial direction, and a gear portion 19a on the outer periphery at one end in the axial direction meshes with the second gear 18, while a gear portion 19b on the outer periphery at the other end in the axial direction is elongated in the axial direction. .

【００２５】送り装置１５は、固定環２０、可動環２１
および動力変換ユニット２２から構成されている。The feeding device 15 includes a fixed ring 20, a movable ring 21
And a power conversion unit 22.

【００２６】固定環２０は、軸方向に大径部２３と小径
部２４とからなる異径の環状をなしており、その大径部
２３が入力軸１とハウジング２５との間に軸受２６を介
して取り付けられることで主動側Ｖ溝プーリ３と同軸状
に固定配設され、小径部２４は軸方向に延びてその外周
に螺旋溝２７が設けられている。固定環２０はまた、動
力変換ユニット２２の保持器２８の軸方向一方の所定以
上の移動を規制する規制部材としてのストッパ２９を有
している。The fixed ring 20 has an annular shape having different diameters composed of a large diameter portion 23 and a small diameter portion 24 in the axial direction. The large diameter portion 23 mounts a bearing 26 between the input shaft 1 and the housing 25. The small-diameter portion 24 extends in the axial direction and is provided with a spiral groove 27 on the outer periphery thereof. The fixed ring 20 also has a stopper 29 as a restricting member that restricts one or more axial movements of the retainer 28 of the power conversion unit 22 in the axial direction.

【００２７】可動環２１は、主動側Ｖ溝プーリ３の外周
に軸受３０を介して取り付けられた軸方向に一様な径の
環状をなしており、固定環２０の小径部２４外周に径方
向に対向配設されて内周に螺旋溝３１が設けられている
とともに、その外周の途中部における径方向突出環状部
３２の外周にギヤが設けられている。The movable ring 21 is formed in an annular shape having a uniform diameter in the axial direction attached to the outer periphery of the driving-side V-groove pulley 3 via a bearing 30. , A spiral groove 31 is provided on the inner periphery thereof, and a gear is provided on the outer periphery of the radially projecting annular portion 32 in the middle of the outer periphery.

【００２８】この径方向突出環状部３２は、可動環本体
２１ａと一体の内径側環状部３２ａと、この内径側環状
部３２ａの外周端部にスプライン嵌合等により回り止め
された外径側環状部３２ｂとからなり、この外径側環状
部３２ｂの外周端部にギヤが形成されている。そして、
互いに一体の可動環本体２１ａと内径側環状部３２ａは
耐摩耗性およびコスト低減の観点から例えばＳＣＭ４１
５などの浸炭用鋼またはＳＵＪ２などの軸受鋼を素材と
している。The radially projecting annular portion 32 has an inner diameter side annular portion 32a integral with the movable ring main body 21a, and an outer diameter side annular portion which is prevented from rotating around the outer peripheral end of the inner diameter side annular portion 32a by spline fitting or the like. A gear is formed at the outer peripheral end of the outer diameter side annular portion 32b. And
The movable ring main body 21a and the inner diameter side annular portion 32a which are integrated with each other are made of, for example, SCM41 from the viewpoint of wear resistance and cost reduction.
5 or a bearing steel such as SUJ2.

【００２９】また外径側環状部３２ｂは第３ギヤ１９と
の噛合による噛合音発生の低減、軽量化、および無潤滑
化の観点から、樹脂、好ましくはポリアミド樹脂、最も
好ましくはポリアセタールを素材としている。The outer diameter side annular portion 32b is made of a resin, preferably a polyamide resin, and most preferably a polyacetal, from the viewpoints of reducing the generation of meshing noise due to meshing with the third gear 19, reducing the weight, and reducing lubrication. I have.

【００３０】なお、可動環２１は、動力変換ユニット２
２の保持器２８の軸方向他方の所定以上の移動を規制す
る規制部材としてのストッパ３３を有している。The movable ring 21 is connected to the power conversion unit 2.
The second retainer 28 has a stopper 33 as a restricting member that restricts the other axial movement of the second retainer 28 by a predetermined amount or more.

【００３１】可動環２１の径方向突出環状部３２の外周
のギヤは、動力源１４の第３ギヤ１９のギヤ部分１９ｂ
と噛合して回転動力を付与されるようになっている。The gear on the outer periphery of the radially projecting annular portion 32 of the movable ring 21 is a gear portion 19b of the third gear 19 of the power source 14.
And the rotation power is applied.

【００３２】動力変換ユニット２２は、固定環２０の小
径部２４外周の螺旋溝２７と可動環２１の内周の螺旋溝
３１との間に介装され可動環２１に与えられる回転動力
を軸方向推進力に変換するものであり、複数のボール３
４と、これら各ボール３４を個別に非分離状態に保持す
る複数のポケット３５を有する円環状の前記保持器２８
とを有している。The power conversion unit 22 is provided between the spiral groove 27 on the outer periphery of the small-diameter portion 24 of the fixed ring 20 and the spiral groove 31 on the inner periphery of the movable ring 21 to transfer the rotational power given to the movable ring 21 in the axial direction. The propulsion is converted into a plurality of balls 3
4 and an annular retainer 28 having a plurality of pockets 35 for individually retaining these balls 34 in a non-separable state.
And

【００３３】保持器２８は、前記両ストッパ２９，３３
で軸方向両方向それぞれに対して所定以上の移動が規制
される。The retainer 28 is provided with the two stoppers 29, 33
, The movement of more than a predetermined amount is restricted in both axial directions.

【００３４】上記構成において、図２の高速回転状態ま
たは図３の低速回転状態とする変速時には、操作ユニッ
ト１３の動力源１４におけるモータ１６を駆動してギヤ
列１７〜１９を介して送り装置１５にそのモータ１６の
動力を伝達する。この伝達は、送り装置１５の可動環２
１の径方向突出環状部３２外周のギヤが、動力源１４の
第３ギヤ１９のギヤ部分１９ｂと噛合することで行われ
る。In the above configuration, at the time of shifting to the high-speed rotation state in FIG. 2 or the low-speed rotation state in FIG. 3, the motor 16 of the power source 14 of the operation unit 13 is driven to drive the feed device 15 through the gear trains 17 to 19. To the power of the motor 16. This transmission is performed by the movable ring 2 of the feeder 15.
This is performed by engaging a gear on the outer periphery of the one radially projecting annular portion 32 with a gear portion 19 b of the third gear 19 of the power source 14.

【００３５】送り装置１５は、前記噛合で、可動環２１
がその変速量に対応した回転量だけ回転駆動させられ
る。この場合、可動環２１の回転方向に応じてＶ溝６，
７の巻き掛け径を大きくまたは小さくして、変速量を大
小に変更することができる。The feeding device 15 is driven by the movable ring 21
Is driven to rotate by a rotation amount corresponding to the shift amount. In this case, the V groove 6,
By increasing or decreasing the winding diameter of No. 7, the shift amount can be changed to a large or small value.

【００３６】そして、可動環２１は、その回転量だけ回
転させられるに伴い、固定環２０とは動力変換ユニット
２２のボール３４を介して互いの螺旋溝２７，３１で連
結されているので、動力変換ユニット２２から軸方向推
進力を受けて前記回転量に見合う距離分、軸方向に移動
させられる。As the movable ring 21 is rotated by the amount of rotation, the movable ring 21 is connected to the fixed ring 20 by the spiral grooves 27 and 31 via the balls 34 of the power conversion unit 22. Upon receiving the axial propulsive force from the conversion unit 22, it is moved in the axial direction by a distance corresponding to the rotation amount.

【００３７】この場合、主動側Ｖ溝プーリ３の可動フラ
ンジ９は、この可動環２１と軸受３０を介して連結され
ているので、可動フランジ９は、可動環２１と一体に軸
方向に移動する。その結果、主動側Ｖ溝プーリ３におけ
る可動フランジ９と固定フランジ８との間のＶ溝６は、
その可動環２１の移動量に対応した巻き掛け径を有した
ものとなる。また、主動側Ｖ溝プーリ３におけるＶ溝６
の変更に応じて、従動側Ｖ溝プーリ４の可動フランジ１
１も自動的に軸方向に移動する結果、従動側Ｖ溝プーリ
４における可動フランジ１１と固定フランジ１０との間
のＶ溝７も、主動側Ｖ溝プーリ３におけるＶ溝６と対応
したものとなり、Ｖベルト５の巻き掛け径が変更され
る。これによって、変速が行われる。In this case, since the movable flange 9 of the driving side V-groove pulley 3 is connected to the movable ring 21 via the bearing 30, the movable flange 9 moves integrally with the movable ring 21 in the axial direction. . As a result, the V groove 6 between the movable flange 9 and the fixed flange 8 in the driving side V groove pulley 3 is
It has a winding diameter corresponding to the amount of movement of the movable ring 21. The V-groove 6 in the driving-side V-groove pulley 3
Of the movable flange 1 of the driven V-groove pulley 4
As a result, the V groove 7 between the movable flange 11 and the fixed flange 10 in the driven V groove pulley 4 also corresponds to the V groove 6 in the driven V groove pulley 3. , The winding diameter of the V belt 5 is changed. Thus, a shift is performed.

【００３８】以上の実施形態の動力変換ユニット２２の
場合、循環型のように複雑な構成とは異なり、単に、ボ
ール３４とそれの保持器２８とからの簡易な構成で、小
型軽量なものとなっている。In the case of the power conversion unit 22 of the above embodiment, unlike a complicated structure such as a circulation type, the power conversion unit 22 has a simple structure composed of the ball 34 and the retainer 28 thereof, and is small and light. Has become.

【００３９】なお、上述の実施形態では保持器２８のポ
ケット３５をボール３４一つだけ収納する形状にしてい
たが、軸方向に長穴形状として、複数のボール３４を収
納する形態にしたものも本発明に含む。In the above-described embodiment, the pocket 35 of the retainer 28 is configured to accommodate only one ball 34. However, a configuration in which a plurality of balls 34 are accommodated in a slot shape in the axial direction may be used. Included in the present invention.

【００４０】[0040]

【発明の効果】以上のように本発明の送り装置は、各々
固定フランジと可動フランジとでＶ溝を形成する主動側
Ｖ溝プーリおよび従動側Ｖ溝プーリと、前記両プーリ間
に巻き掛けられるＶベルトとを有した無段変速機に用い
られて、前記主動側Ｖ溝プーリの可動フランジを軸方向
にスライドさせて前記両プーリに対するベルトの巻き掛
け径を可変させるのに、前記主動側Ｖ溝プーリと同軸状
に固定配設可能でかつ外周に螺旋溝が設けられる固定環
と、前記固定環の外周に配設されて内周に螺旋溝が設け
られる可動環と、前記固定環と可動環それぞれの螺旋溝
間に介装される複数のボールと、前記ボールそれぞれを
非分離状態に保持する複数のポケットとが形成されてい
る円環状の保持器とを有した構成であるので、従来のボ
ール循環ユニットを用いた送り装置と比較して簡易な構
成で、かつ小型軽量となり、したがって、製造コストも
安価なものとなる。As described above, the feeder according to the present invention is wound around the driving-side V-groove pulley and the driven-side V-groove pulley, each of which forms a V-groove with the fixed flange and the movable flange, between the two pulleys. The V-belt is used in a continuously variable transmission, and the movable flange of the driving-side V-groove pulley is slid in the axial direction to change the winding diameter of the belt around both pulleys. A fixed ring that can be fixedly disposed coaxially with the groove pulley and that has a spiral groove on the outer periphery; a movable ring that is disposed on the outer periphery of the fixed ring and has a spiral groove on the inner periphery; Since it has a configuration including a plurality of balls interposed between the spiral grooves of the rings and a plurality of pockets holding the balls in a non-separable state, an annular retainer is formed. Ball circulation unit In comparison to a simple in construction and feeding apparatus used, and becomes small and light, therefore, it becomes low manufacturing cost.

【００４１】この送り装置における保持器に対して所定
以上の軸方向移動を規制する規制部材を備えた場合、保
持器が可動環と固定環との間から脱落するのを防止でき
る。When the feeder is provided with a restricting member for restricting the retainer from moving in the axial direction by a predetermined amount or more, the retainer can be prevented from falling off from between the movable ring and the fixed ring.

【００４２】また、本発明の無段変速機によれば、それ
が備える送り装置が、固定環と、可動環と、それぞれの
螺旋溝間に介装される複数のボールと、前記ボールそれ
ぞれを非分離状態に保持する複数のポケットとが形成さ
れている円環状の保持器とからなるので、従来のボール
非循環ユニットを用いた送り装置と比較して簡易な構成
の送り装置となり、結果、全体を小型軽量化するのに適
し、かつ製造コストも安価にすることができる。Further, according to the continuously variable transmission of the present invention, the feeder provided therein includes a fixed ring, a movable ring, a plurality of balls interposed between respective spiral grooves, and each of the balls. Since it is composed of an annular retainer formed with a plurality of pockets to be held in a non-separated state, the feeder has a simpler configuration than a conventional feeder using a ball non-circulation unit, and as a result, It is suitable for reducing the whole size and weight, and the manufacturing cost can be reduced.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の無段変速機の要部の縦断面図FIG. 1 is a longitudinal sectional view of a main part of a continuously variable transmission according to the present invention.

【図２】図１の送り装置における高速回転状態の拡大断
面図FIG. 2 is an enlarged sectional view of the feeder of FIG. 1 in a high-speed rotation state.

【図３】図１の送り装置における低速回転状態の拡大断
面図FIG. 3 is an enlarged sectional view of the feeder of FIG. 1 in a low-speed rotation state;

【図４】図１の送り装置が備える保持器の拡大斜視図FIG. 4 is an enlarged perspective view of a retainer included in the feeder of FIG. 1;

【図５】図４の断面図FIG. 5 is a sectional view of FIG. 4;

【符号の説明】[Explanation of symbols]

１ 入力軸 ２ 出力軸 ３ 主動側Ｖ溝プーリ ４ 従動側Ｖ溝プーリ ５ Ｖベルト ６，７ Ｖ溝 ８ 主動側Ｖ溝プーリの固定フランジ ９ 主動側Ｖ溝プーリの可動フランジ １０ 従動側Ｖ溝プーリの固定フランジ １１ 従動側Ｖ溝プーリの可動フランジ １３ 操作ユニット １４ 動力源 １５ 送り装置 １６ モータ １７〜１９ ギヤ ２０ 固定環 ２１ 可動環 ２２ 動力変換ユニット ２７，３１ 螺旋溝 ２８ 保持器 ３４ ボール ３５ ポケット DESCRIPTION OF SYMBOLS 1 Input shaft 2 Output shaft 3 Driving side V groove pulley 4 Driving side V groove pulley 5 V belt 6,7 V groove 8 Fixing flange of Driving side V groove pulley 9 Moving flange of Driving side V groove pulley 10 Driving side V groove pulley Fixed flange 11 movable flange of driven-side V-groove pulley 13 operating unit 14 power source 15 feeder 16 motor 17-19 gear 20 fixed ring 21 movable ring 22 power conversion unit 27, 31 spiral groove 28 retainer 34 ball 35 pocket

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】各々固定フランジと可動フランジとでＶ溝
を形成する主動側Ｖ溝プーリおよび従動側Ｖ溝プーリ
と、前記両プーリ間に巻き掛けられるＶベルトとを有し
た無段変速機に用いられて、前記主動側Ｖ溝プーリの可
動フランジを軸方向にスライドさせて前記両プーリに対
するベルトの巻き掛け径を可変させる送り装置であっ
て、 前記主動側Ｖ溝プーリと同軸状に固定配設が可能でかつ
外周に螺旋溝が設けられる固定環と、 前記固定環の外周に配設されて内周に螺旋溝が設けられ
る可動環と、 前記可動環と固定環それぞれの螺旋溝間に介装される複
数のボールと、 前記ボールそれぞれを非分離状態に保持する複数のポケ
ットとが形成されている円環状の保持器とを有してい
る、 ことを特徴とする送り装置。1. A continuously variable transmission having a driving side V-groove pulley and a driven side V-groove pulley forming a V-groove with a fixed flange and a movable flange, respectively, and a V-belt wound between the pulleys. A feeder used to slide a movable flange of the driving side V-groove pulley in an axial direction to change a winding diameter of a belt around both pulleys, wherein the feeding device is fixedly disposed coaxially with the driving side V-groove pulley. A fixed ring that can be installed and a spiral groove is provided on the outer periphery; a movable ring that is provided on the outer periphery of the fixed ring and has a spiral groove on the inner periphery; and between the movable groove and the respective spiral grooves of the fixed ring. A feeding device, comprising: a plurality of interposed balls; and an annular retainer formed with a plurality of pockets for holding the balls in a non-separable state. 【請求項２】請求項１に記載の送り装置において、 前記保持器の所定以上の軸方向移動を規制する規制部材
を備えた、ことを特徴とする送り装置。2. The feeding device according to claim 1, further comprising a regulating member that regulates a predetermined or more axial movement of the retainer. 【請求項３】各々固定フランジと可動フランジとでＶ溝
を形成する主動側Ｖ溝プーリおよび従動側Ｖ溝プーリ
と、前記両プーリ間に巻き掛けられるＶベルトと、前記
主動側Ｖ溝プーリの可動フランジを軸方向にスライドさ
せて前記両プーリに対するベルトの巻き掛け径を可変さ
せる操作ユニットとを備え、 前記操作ユニットが、動力源と、送り装置とを備え、 前記動力源は、前記送り装置に回転動力を付与するもの
であり、 前記送り装置は、 前記主動側Ｖ溝プーリと同軸状に固定配設されかつ外周
に螺旋溝が設けられる固定環と、 前記固定環の外周に配設されて前記動力源から回転動力
を付与されるものであってその内周に螺旋溝が設けられ
る可動環と、 前記可動環と固定環それぞれの螺旋溝間に介装される複
数のボールと、 前記ボールそれぞれを非分離状態に保持する複数のポケ
ットとが形成されている円環状の保持器とを有してい
る、 ことを特徴とする無段変速機。3. A driving V-groove pulley and a driven V-groove pulley, each of which forms a V-groove with a fixed flange and a movable flange, a V-belt wound between the two pulleys, and a driving-side V-groove pulley. An operating unit that slides a movable flange in an axial direction to change a winding diameter of the belt around the pulleys; the operating unit includes a power source and a feed device; and the power source includes the feed device. The feed device is fixedly disposed coaxially with the driving-side V-groove pulley, and has a fixed ring provided with a helical groove on the outer periphery, and is disposed on the outer periphery of the fixed ring. A movable ring to which rotational power is applied from the power source, and a spiral groove is provided on the inner periphery thereof; a plurality of balls interposed between the spiral grooves of the movable ring and the fixed ring; ball A continuously variable transmission, comprising: an annular retainer formed with a plurality of pockets each of which is held in a non-separable state.
JP29210199A 1999-10-14 1999-10-14 Feed device and continuously variable transmission using the same Expired - Fee Related JP4075250B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29210199A JP4075250B2 (en) 1999-10-14 1999-10-14 Feed device and continuously variable transmission using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29210199A JP4075250B2 (en) 1999-10-14 1999-10-14 Feed device and continuously variable transmission using the same

Publications (2)

Publication Number Publication Date
JP2001108035A true JP2001108035A (en) 2001-04-20
JP4075250B2 JP4075250B2 (en) 2008-04-16

Family

ID=17777570

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Link
JP (1) JP4075250B2 (en)

Also Published As

Publication number Publication date
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