JPH0220871B2 - - Google Patents
Info
- Publication number
- JPH0220871B2 JPH0220871B2 JP61259422A JP25942286A JPH0220871B2 JP H0220871 B2 JPH0220871 B2 JP H0220871B2 JP 61259422 A JP61259422 A JP 61259422A JP 25942286 A JP25942286 A JP 25942286A JP H0220871 B2 JPH0220871 B2 JP H0220871B2
- Authority
- JP
- Japan
- Prior art keywords
- speed
- movable
- pulley
- drive shaft
- rotating member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
Landscapes
- Transmissions By Endless Flexible Members (AREA)
- Gear-Shifting Mechanisms (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はベルト式無段変速装置に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a belt type continuously variable transmission.
（従来の技術）
従来より、固定シーブと該固定シーブに相対し
て移動自在な可動シーブとよりなる駆動側及び従
動側変速プーリが所定間隔を存して駆動軸及び従
動軸に取付けられ、該両変速プーリ間にベルトが
掛入された変速装置は知られている。(Prior Art) Conventionally, driving side and driven side variable speed pulleys, each consisting of a fixed sheave and a movable sheave that is movable relative to the fixed sheave, are attached to a driving shaft and a driven shaft with a predetermined interval between them. A transmission device in which a belt is hooked between both transmission pulleys is known.
そのような変速装置では、駆動側プーリにはト
ルクカム、油圧シリンダ等の変速手段を、従動側
変速プーリには可動シーブを固定シーブ側に付勢
するスプリングをそれぞれ設け、変速手段の変速
操作により、駆動側変速プーリの可動シーブの移
動と同時に従動側変速プーリの可動シーブの移動
を行わせるようにしている。 In such a transmission, the drive pulley is provided with a speed change means such as a torque cam or a hydraulic cylinder, and the driven speed change pulley is provided with a spring that biases the movable sheave toward the fixed sheave. The movable sheave of the driven speed change pulley is moved simultaneously with the movement of the movable sheave of the drive side speed change pulley.
（発明が解決しようとする問題点）
ところが、上記装置では、駆動側変速プーリの
プーリピツチ径を小さく従動側変速プーリのプー
リピツチ径を大きくする減速時には、上記スプリ
ングの弾発力により従動側変速プーリの可動シー
ブの移動が補助されるので、大きな操作力は必要
としないが、駆動側変速プーリのプーリピツチ径
を大きく従動側変速プーリのプーリピツチ径を小
さくする増速時には、スプリングの弾発力に抗し
て従動側変速プーリの可動シーブを移動させる必
要があるので、大きな操作力が必要となり、ま
た、操作力の増大に伴つて機械的伝達ロスも大き
くなり、操作効率が低い。(Problem to be Solved by the Invention) However, in the above device, during deceleration when the pulley pitch diameter of the driving side speed change pulley is decreased and the pulley pitch diameter of the driven side speed change pulley is increased, the elastic force of the spring causes the driven side speed change pulley to Since the movement of the movable sheave is assisted, a large operating force is not required. However, when increasing the speed by increasing the pulley pitch diameter of the driving side speed change pulley and decreasing the pulley pitch diameter of the driven side speed change pulley, it is necessary to resist the elastic force of the spring. Since it is necessary to move the movable sheave of the driven speed change pulley, a large operating force is required, and as the operating force increases, mechanical transmission loss also increases, resulting in low operating efficiency.
そこで、出願人は、そのような問題を解決する
ために、駆動側及び従動側変速プーリにそれぞれ
油圧子シリンダを設け、該両子シリンダを油圧操
作手段の油圧親シリンダに接続し、その親シリン
ダを操作して子シリンダを作動させ、変速プーリ
の可動シーブを移動させるようにしたことによ
り、小さな操作力でもつて迅速に操作できるよう
にした無段変速装置を提案している（特公昭57−
37787号公報参照）。 Therefore, in order to solve such a problem, the applicant provided hydraulic slave cylinders for each of the drive side and driven side variable speed pulleys, connected both of the slave cylinders to a hydraulic master cylinder of the hydraulic operating means, and He proposed a continuously variable transmission device that could be operated quickly with a small amount of operating force by operating a child cylinder and moving the movable sheave of the speed change pulley.
(See Publication No. 37787).
ところが、そのような装置では、構造が複雑と
なるのに加えて、従動側変速プーリは大径のプー
リピツチ径のときに高推力が要求されることから
それに基づいて従動側変速プーリの可動シーブを
付勢するスプリングの弁座の固定位置を定めてい
るので、小径のプーリピツチ径のときにはスプリ
ングが大きく圧縮されて過推力となり、ベルト寿
命の低下の大きな原因となつている。 However, in such a device, in addition to the complicated structure, the driven side variable speed pulley is required to have a high thrust when the pulley pitch is large, so the movable sheave of the driven side variable speed pulley is adjusted based on this. Since the valve seat of the biasing spring is fixed at a fixed position, when the pulley pitch is small, the spring is greatly compressed, resulting in excessive thrust, which is a major cause of shortened belt life.
また、特開昭59−62760号公報に記載されるよ
うに、可動シーブをねじ手段を介してモータにて
移動させるものもあるが、そのようにすると、操
作杆の操作室と可動シーブの位置との差（ずれ）
が発生するおそれがあるし、また、その差（ず
れ）をなくすようにすると、位置センサなどが必
要となり、コスト高となる。 Furthermore, as described in Japanese Patent Application Laid-open No. 59-62760, there is a device in which the movable sheave is moved by a motor via screw means, but in this case, the position of the operating chamber of the control rod and the movable sheave is difference (displacement)
This may occur, and if the difference (shift) is to be eliminated, a position sensor or the like will be required, which will increase costs.
本発明はかかる点に鑑みてなされたもので、安
価かつ簡単な構造で、小さな操作力でもつて迅速
に変速操作することができる変速装置を提供する
ことを目的とする。 The present invention has been made in view of the above problems, and an object of the present invention is to provide a transmission device that is inexpensive and has a simple structure, and is capable of quickly changing speeds even with a small operating force.
（問題点を解決するための手段）
上記目的を達成するために、本発明は、固定シ
ーブと該固定シーブに相対して移動自在な可動シ
ーブとよりなる駆動側及び従動側変速プーリが所
定間隔を存して駆動軸及び従動軸に取付けられ、
該両変速プーリ間にベルトが掛入された装置にお
いて、上記駆動軸に回転可能に螺合されるととも
に駆動側変速プーリの可動シーブに軸受を介して
連結されて該可動シーブと軸方向に一体的に移動
可能な移動スリーブと、該移動スリーブに一体的
に設けられた回転部材と、前記駆動軸に前記駆動
軸の回転速度を増速する増速機構を介して連係さ
れ前記回転部材に当接して前記回転部材の回転速
度を高くする第１摩擦部材と、前記駆動軸と遮断
され前記回転部材に当接して前記回転部材の回転
速度を低くする第２摩擦部材と、前記第１及び第
２摩擦部材に連係され前記第１及び第２摩擦部材
のいずれか一方のみを前記回転部材に当接させる
変速操作手段とを具備することを特徴とするもの
である。(Means for Solving the Problems) In order to achieve the above object, the present invention provides a driving side and a driven side variable speed pulley, each consisting of a fixed sheave and a movable sheave that is movable relative to the fixed sheave, at a predetermined interval. attached to the drive shaft and driven shaft,
In a device in which a belt is hooked between both speed change pulleys, the belt is rotatably screwed onto the drive shaft and connected to the movable sheave of the drive side speed change pulley via a bearing, and is axially integrated with the movable sheave. a rotating member that is integrally provided with the moving sleeve; and a rotating member that is linked to the drive shaft via a speed increasing mechanism that increases the rotational speed of the drive shaft and that contacts the rotating member. a first friction member that contacts the rotating member to increase the rotational speed of the rotating member; a second friction member that is disconnected from the drive shaft and contacts the rotating member to reduce the rotational speed of the rotating member; The present invention is characterized by comprising a speed change operation means linked to the two friction members and bringing only one of the first and second friction members into contact with the rotating member.
（作用）
第１又は第２摩擦部材は回転部材に当接する
と、該回転部材を介して移動スリーブに対し駆動
軸との間に速度差を生じせしめ、移動スリーブし
たがつて可動シーブを駆動軸の回転力によつて移
動し、変速が行われる。(Function) When the first or second friction member comes into contact with the rotating member, it creates a speed difference between the moving sleeve and the drive shaft through the rotating member, causing the moving sleeve and therefore the movable sheave to move toward the drive shaft. The rotational force of the motor causes movement and gear changes.
（実施例）
以下、本発明の実施例を図面に沿つて説明す
る。(Example) Examples of the present invention will be described below with reference to the drawings.
第１図及び第２図に示す無段変速装置１は駆動
側変速プーリ２と従動側変速プーリ３とが一定間
隔（軸間距離）を存して配設されてなり、両変速
プーリ２，３間にベルト４が掛入されている。前
記両変速プーリ２，３は駆動軸５及び従動軸６に
固定シーブ７，８が嵌合固定され、該固定シーブ
７，８は片側にシーブ面７ａ，８ａを有し、該シ
ーブ面７ａ，８ａに相対するシーブ面９ａ，１０
ａを片側に有する可動シーブ９，１０が軸方向に
移動自在に嵌合され、両シーブ面７ａ，９ａ及び
８ａ，１０ａ間にＶ溝１１，１２が形成されて前
記ベルト４が掛入されている。 The continuously variable transmission 1 shown in FIGS. 1 and 2 includes a driving side variable speed pulley 2 and a driven side variable speed pulley 3 arranged with a constant interval (distance between shafts), and both the variable speed pulleys 2, A belt 4 is hooked between the parts 3 and 3. Fixed sheaves 7, 8 are fitted and fixed to the drive shaft 5 and driven shaft 6 of both speed change pulleys 2, 3, and the fixed sheaves 7, 8 have sheave surfaces 7a, 8a on one side, and the sheave surfaces 7a, Sheave surfaces 9a, 10 opposite to 8a
Movable sheaves 9 and 10 having a movable sheave 9 and 10 on one side are fitted so as to be movable in the axial direction, and V grooves 11 and 12 are formed between both sheave surfaces 7a and 9a and 8a and 10a, and the belt 4 is hooked thereto. There is.
また、駆動軸５には、駆動側変速プーリ２の可
動シーブ９の外方に移動スリーブ１３が、該可動
シーブ９と軸方向に一体的に移動可能でかつ回転
可能に螺合されている。上記移動スリーブ１３
は、駆動軸５のねじ部５ａに回転可能に螺合する
ねじ部１３ａと、該ねじ部１３ａより可動シーブ
９側へ延長されベアリング１４を介して可動シー
ブ９に回転可能に連結された薄肉の筒状部１３ｂ
とからなり、上記ねじ部１３ａには移動スリーブ
１３と一体的に回転する回転部材としてのフラン
ジ部１５が連設されている。さらに、上記移動ス
リーブ１３にはベアリング１６を介して第１歯付
プーリ１７が回転自在に外嵌されている。 Further, a movable sleeve 13 is screwed onto the drive shaft 5 outside the movable sheave 9 of the drive-side speed change pulley 2 so as to be movable integrally with the movable sheave 9 in the axial direction and rotatable. The above moving sleeve 13
The threaded part 13a is rotatably screwed into the threaded part 5a of the drive shaft 5, and the thin-walled part 13a is extended from the threaded part 13a toward the movable sheave 9 and rotatably connected to the movable sheave 9 via a bearing 14. Cylindrical part 13b
A flange portion 15 as a rotating member that rotates integrally with the movable sleeve 13 is connected to the threaded portion 13a. Further, a first toothed pulley 17 is rotatably fitted onto the movable sleeve 13 via a bearing 16.
また、駆動軸５には第1V溝プーリ１８が固定
されている。 Further, a first V-groove pulley 18 is fixed to the drive shaft 5.
一方、従動軸６には、従動側変速プーリ３の可
動シーブ１０の外方にスプリング受１９が固設さ
れ、該スプリング受１９と可動シーブ１０との間
にスプリング２０が介設されている。また、従動
側変速プーリ３の固定シーブ８の外方の従動軸６
には、回転スリーブ２１が１対のベアリング２
２，２３を介して回転自在に嵌挿されている。 On the other hand, a spring receiver 19 is fixed to the driven shaft 6 outside the movable sheave 10 of the driven speed change pulley 3, and a spring 20 is interposed between the spring receiver 19 and the movable sheave 10. Also, the driven shaft 6 on the outside of the fixed sheave 8 of the driven side variable speed pulley 3
The rotating sleeve 21 is connected to a pair of bearings 2.
2 and 23, and is rotatably inserted.
上記回転スリーブ２１の固定シーブ８側には、
第１歯付プーリ１７と歯数が同数で幅広の第２歯
付プーリ２４が外嵌固定され、該第２歯付プーリ
２４と第１歯付プーリ１７との間に歯付ベルト２
５が巻回されている。また、反対側には、第1V
溝プーリ１８よりも小径のＶ溝プーリ２６が外嵌
され、該第2V溝プーリ２６と第1V溝プーリ１８
との間にＶベルト２７が巻回され、第2V溝プー
リ２６は駆動軸５の略２倍の速度で回転するよう
になつている。 On the fixed sheave 8 side of the rotating sleeve 21,
A second toothed pulley 24 having the same number of teeth as the first toothed pulley 17 and a wider width is fixedly fitted onto the outside, and the toothed belt 2
5 is wound. Also, on the other side, the 1st V
A V-groove pulley 26 having a smaller diameter than the groove pulley 18 is fitted onto the outside, and the second V-groove pulley 26 and the first V-groove pulley 18
A V-belt 27 is wound between the second V-groove pulley 26 and the second V-groove pulley 26 so as to rotate at approximately twice the speed of the drive shaft 5.
したがつて、駆動軸５の回転速度が、第1V溝
プーリ１８、Ｖベルト２７、第2V溝プーリ２６、
回転スリーブ２１、第２歯付プーリ２４、歯付ベ
ルト２５を介して略２倍に増速されて、第１歯付
プーリ１７（すなわち後述の第１摩擦パツド２
８）に伝達されることになる（増速機構）。 Therefore, the rotational speed of the drive shaft 5 is the same as that of the first V-groove pulley 18, the V-belt 27, the second V-groove pulley 26,
The speed is increased approximately twice through the rotating sleeve 21, the second toothed pulley 24, and the toothed belt 25, and the first toothed pulley 17 (that is, the first friction pad 2 described later)
8) (speed increasing mechanism).
また、フランジ部１５の可動シーブ９側にはド
ーナツツ状の第１摩擦パツド２８が、反対側には
第２摩擦パッド２９がそれぞれ駆動軸５の軸方向
に移動可能に配設されている。 Further, a donut-shaped first friction pad 28 is disposed on the movable sheave 9 side of the flange portion 15, and a second friction pad 29 is disposed on the opposite side so as to be movable in the axial direction of the drive shaft 5.
第１摩擦パツド２８は、第１歯付プーリ１７を
摺動可能に貫通する支持軸３０の一端に支承され
ている。支持軸３０の他端には、ドーナツツ形状
の板体３１が支承されている。 The first friction pad 28 is supported on one end of a support shaft 30 that slidably passes through the first toothed pulley 17 . A donut-shaped plate 31 is supported at the other end of the support shaft 30.
３２は操作ハンドルで、支持スリーブ３３にス
ライド可能に支持された操作部材３４と連結さ
れ、該操作部材３４が上記板体３１にボール部材
３５を介して連係される第１操作アーム部３４ａ
と、第２摩擦パツド２９に直接に連結される第２
操作アーム部３４ｂとを有する。 Reference numeral 32 denotes an operating handle, which is connected to an operating member 34 that is slidably supported by a support sleeve 33, and a first operating arm portion 34a in which the operating member 34 is linked to the plate body 31 via a ball member 35.
and a second friction pad directly connected to the second friction pad 29.
It has an operation arm part 34b.
なお、上記実施例では図示していないが、上記
駆動側変速プーリ２の可動シーブ９に、負荷変動
の大きい場合に回転数を略一定とするための位置
固定手段を設けるようにしてもよい。 Although not shown in the above embodiment, the movable sheave 9 of the drive-side speed change pulley 2 may be provided with a position fixing means for keeping the rotation speed substantially constant when the load fluctuation is large.
上記のように構成すれば、増速時には、第１図
に示すように操作ハンドル３２を低側から高側へ
操作すると、第２摩擦パツド２９がフランジ部１
５に圧接されてブレーキ作用を呈する。すなわ
ち、フランジ部１５の回転速度が低くなる。 With the above configuration, when increasing speed, when the operation handle 32 is operated from the low side to the high side as shown in FIG.
5 and exerts a braking action. That is, the rotational speed of the flange portion 15 becomes low.
したがつて、駆動軸５と共回りしていた移動ス
リーブ１３の回転速度がフランジ部１５を介して
規制されて低くなり、駆動軸５との間に回転速度
差が生ずる。その結果、駆動軸５の回転力が推力
に変換されて移動スリーブ１３が回転しながらＡ
方向へ移動するので、それと一体にベアリング１
４を介して連結された可動シーブ９もＡ方向へ移
動し、駆動側変速プーリ１２のプーリピツチ径が
大きく従動側変速プーリ３のプーリピツチ径が小
さくなり、小さい操作力で短時間に高速状態とな
る。 Therefore, the rotational speed of the movable sleeve 13, which has been rotating together with the drive shaft 5, is restricted via the flange portion 15 and becomes lower, resulting in a rotational speed difference between the movable sleeve 13 and the drive shaft 5. As a result, the rotational force of the drive shaft 5 is converted into thrust, and the movable sleeve 13 rotates while
Since it moves in the direction, bearing 1 is integrally attached to it.
The movable sheave 9 connected via 4 also moves in the direction A, and the pulley pitch diameter of the driving side speed change pulley 12 becomes large and the pulley pitch diameter of the driven side speed change pulley 3 becomes small, and a high speed state is achieved in a short time with a small operating force. .
一方、減速時には、第２図に示すように操作ハ
ンドル３２を高側から低側へ逆方向に操作する
と、第１摩擦パツド２８がフランジ部１５に圧接
されて該フランジ部１５したがつて移動スリーブ
１３と共回りをすることになる。 On the other hand, during deceleration, when the operating handle 32 is operated in the opposite direction from the high side to the low side as shown in FIG. It will be rotating together with 13.
上記第１摩擦パツド２８は第１歯付プーリ１７
に支持され、該第１歯付プーリ１７とともに前述
した如く駆動軸５の回転速度の略２倍の回転速度
となつて回転しているので、上記圧接により移動
スリーブ１３は第１歯付プーリ１７と略同速に増
速される。その結果、移動スリーブ１３は回転速
度が駆動軸５よりも速くなり、該駆動軸５との間
に速度差を生じ、可動シーブ９と共にＢ方向へ回
転しながら移動し、駆動側変速プーリ２のプーリ
ピツチ径が小さく従動側変速プーリ３のプーリピ
ツチ径が大きい低速状態となる。 The first friction pad 28 is connected to the first toothed pulley 17.
The movable sleeve 13 is supported by the first toothed pulley 17 and rotates at a rotational speed approximately twice the rotational speed of the drive shaft 5 as described above. The speed will be increased to approximately the same speed. As a result, the rotational speed of the movable sleeve 13 becomes faster than that of the drive shaft 5, creating a speed difference between the movable sleeve 13 and the drive shaft 5, and moving while rotating in the B direction together with the movable sheave 9. A low speed state occurs in which the pulley pitch diameter is small and the pulley pitch diameter of the driven speed change pulley 3 is large.
（発明の効果）
本発明は、上記のように、移動スリーブと一体
的に回転する回転部材に摩擦部材を接触させ、移
動スリーブと駆動軸との間に生じる速度差を利用
して可動シーブを移動させる推力を発生させるよ
うにしたから、安価かつ簡単な構造で、高負荷状
態となつても小さい操作力で変速操作をすること
ができる。(Effects of the Invention) As described above, the present invention brings the friction member into contact with the rotating member that rotates integrally with the movable sleeve, and utilizes the speed difference between the movable sleeve and the drive shaft to move the movable sheave. Since the thrust force for movement is generated, the structure is inexpensive and simple, and even under high load conditions, the gear shift operation can be performed with a small operating force.
図面は本発明の実施例を示すもので、第１図及
び第２図は増速時及び減速時におけるベルト式変
速装置の一部断面図である。
１……無段変速装置、２，３……変速プーリ、
４……ベルト、５……駆動軸、６……従動軸、
７，８……固定シーブ、９，１０……可動シー
ブ、１３……移動スリーブ、１５……フランジ
部、２８，２９……摩擦パツド。
The drawings show an embodiment of the present invention, and FIGS. 1 and 2 are partial sectional views of the belt type transmission during speed increase and deceleration. 1... Continuously variable transmission, 2, 3... Variable speed pulley,
4... Belt, 5... Drive shaft, 6... Driven shaft,
7, 8... Fixed sheave, 9, 10... Movable sheave, 13... Moving sleeve, 15... Flange portion, 28, 29... Friction pad.
Claims (1)
在な可動シーブとよりなる駆動側及び従動側変速
プーリが所定間隔を存して駆動軸及び従動軸に取
付けられ、該両変速プーリ間にベルトが掛入され
た装置において、上記駆動軸に回転可能に螺合さ
れるとともに駆動側変速プーリの可動シーブに軸
受を介して連結されて該可動シーブと軸方向に一
体的に移動可能な移動スリーブと、該移動スリー
ブに一体的に設けられた回転部材と、前記駆動軸
に前記駆動軸の回転速度を増速する増速機構を介
して連係され前記回転部材に当接して前記回転部
材の回転速度を高くする第１摩擦部材と、前記駆
動軸と遮断され前記回転部材に当接して前記回転
部材の回転速度を低くする第２摩擦部材と、前記
第１及び第２摩擦部材に連係され前記第１及び第
２摩擦部材のいずれか一方のみを前記回転部材に
当接させる変速操作手段とを具備することを特徴
とする変速装置。1 Drive-side and driven-side variable speed pulleys, each consisting of a fixed sheave and a movable sheave that is movable relative to the fixed sheave, are attached to the drive shaft and the driven shaft with a predetermined interval, and a belt is installed between the two variable-speed pulleys. In the hung device, a movable sleeve is rotatably screwed to the drive shaft and connected to the movable sheave of the drive side speed change pulley via a bearing so as to be movable integrally with the movable sheave in the axial direction. , a rotating member integrally provided on the movable sleeve is connected to the drive shaft via a speed increasing mechanism that increases the rotational speed of the drive shaft, and contacts the rotating member to increase the rotational speed of the rotating member. a first friction member that increases the rotational speed of the rotating member; a second friction member that is disconnected from the drive shaft and contacts the rotating member to reduce the rotational speed of the rotating member; A transmission device comprising: a transmission operation means for bringing only one of the first and second friction members into contact with the rotating member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25942286A JPS63115960A (en) | 1986-10-30 | 1986-10-30 | Speed change gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25942286A JPS63115960A (en) | 1986-10-30 | 1986-10-30 | Speed change gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63115960A JPS63115960A (en) | 1988-05-20 |
| JPH0220871B2 true JPH0220871B2 (en) | 1990-05-10 |
Family
ID=17333878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25942286A Granted JPS63115960A (en) | 1986-10-30 | 1986-10-30 | Speed change gear |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63115960A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011098595A1 (en) * | 2010-02-12 | 2011-08-18 | Magna Powertrain Ag & Co Kg | Coupling assembly |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5962760A (en) * | 1982-05-27 | 1984-04-10 | Mitsubishi Agricult Mach Co Ltd | Stepless variable transmission |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0349935Y2 (en) * | 1984-10-17 | 1991-10-24 |
-
1986
- 1986-10-30 JP JP25942286A patent/JPS63115960A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5962760A (en) * | 1982-05-27 | 1984-04-10 | Mitsubishi Agricult Mach Co Ltd | Stepless variable transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63115960A (en) | 1988-05-20 |
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