JPH10110797A - Continuously variable shifting pulley device - Google Patents

Continuously variable shifting pulley device

Info

Publication number
JPH10110797A
JPH10110797A JP26491896A JP26491896A JPH10110797A JP H10110797 A JPH10110797 A JP H10110797A JP 26491896 A JP26491896 A JP 26491896A JP 26491896 A JP26491896 A JP 26491896A JP H10110797 A JPH10110797 A JP H10110797A
Authority
JP
Japan
Prior art keywords
pulley
fixed
movable
face
groove
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
JP26491896A
Other languages
Japanese (ja)
Other versions
JP3164517B2 (en
Inventor
Masayuki Michiki
正之 道木
Akihiko Ishida
明彦 石田
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.)
Yamada Manufacturing Co Ltd
Original Assignee
Yamada Seisakusho KK
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 Yamada Seisakusho KK filed Critical Yamada Seisakusho KK
Priority to JP26491896A priority Critical patent/JP3164517B2/en
Publication of JPH10110797A publication Critical patent/JPH10110797A/en
Application granted granted Critical
Publication of JP3164517B2 publication Critical patent/JP3164517B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To provide a continuously variable shifting pulley device to effect only low speed rotation during reversing through extremely simple structure. SOLUTION: A continuously variable shifting pulley device comprises a fixed pulley half body A1 consisting of a fixed boss part 1 and a pulley face 3 on the fixed side fixed at the end part in the axial direction of the fixed boss part 1; and a moving pulley half body A2 consisting of a moving boss part 5, and a pulley face 7 on the moving side fixed at the end in the axial direction of the moving boss part 5. Only in a state that the pulley face 3 on the fixed side and the pulley face 7 on the moving side are brought into a most approaching state, both the fixed pulley half-body A1 and the moving pulley half body A2 can be reversed. This constitution prevents acceleration during reversing (back running) of the pulley body and ensures safety.

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、極めて簡単な構造
にてバック走行時を低速回転のみとすることができる無
段変速プーリ装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuously variable pulley device capable of rotating only at low speed during reverse running with a very simple structure.

【0002】[0002]

【従来技術】従来より、通常の前進走行時における動力
源の回転速度の変化により、カム機構が作動し、そのプ
ーリに巻掛けられているベルト駆動径を適宜,無段に可
変させて変速する無段変速プーリ装置が存在している。
また、この装置は、動力源のエンジン、電動モータなど
の一方向の回転力を受けて動力を伝達するものである。
このような簡易な無段変速プーリ装置が二輪車や簡易な
ゴルフカート,荷役車等の乗用車,運搬車等に使用され
ることがある。
2. Description of the Related Art Conventionally, a cam mechanism operates in response to a change in the rotation speed of a power source during normal forward running, and a belt is wound around a pulley so that a belt driving diameter can be varied in a stepless manner. There is a continuously variable pulley device.
This device transmits power by receiving a rotational force in one direction such as an engine or an electric motor as a power source.
Such a simple continuously variable pulley device may be used for motorcycles, simple golf carts, cargo vehicles, and other passenger cars, transport vehicles, and the like.

【0003】[0003]

【発明が解決しようとする課題】前記無段変速プーリ装
置でバック(逆)走行させるのに、例えば、動力源であ
るエンジン、電動モータなどの回転を前進走行時と同一
方向とする場合、その回転に対して逆転させる歯車機構
を設け、逆転時に一定の回転トルクで回転させるような
装置を設ける必要がある。
When the continuously variable pulley device is driven to travel backward (reverse), for example, when the rotation of an engine, an electric motor, or the like, which is a power source, is made to be in the same direction as when traveling forward, it is necessary to use the following method. It is necessary to provide a gear mechanism for reversing the rotation and a device for rotating with a constant rotational torque at the time of the reverse rotation.

【0004】また、前記動力源を直接に、正転から逆転
させる場合、前進走行時と異なってバック走行時には、
カム機構によってプーリ径を適宜に可変することができ
ず急激に加速するように変速し、バック走行時における
安定した走行ができず、危険な状態となったり、或いは
発進不能になってしまう等のおそれがある。この為、バ
ック走行時において一定の回転トルクで回転させるよう
に歯車機構を設けなければならない。いづれにしても、
バック走行を安定させる場合、無段変速プーリ装置との
間に歯車機構を設けなければならない為、装置が複雑か
つ大型化し、重量が増大し、コストが高くなる。
In the case where the power source is directly changed from normal rotation to reverse rotation, unlike the case of forward running, the case of back running is different from that of forward running.
The pulley diameter cannot be changed appropriately by the cam mechanism, and the speed is changed so as to accelerate rapidly, and stable running during back running cannot be performed, resulting in a dangerous state or inability to start. There is a risk. For this reason, a gear mechanism must be provided so as to rotate with a constant rotational torque during reverse running. In any case,
In order to stabilize the reverse running, a gear mechanism must be provided between the pulley device and the continuously variable transmission, so that the device becomes complicated and large, the weight increases, and the cost increases.

【0005】[0005]

【課題を解決するための手段】そこで、発明者は、上記
課題を解決すべく鋭意,研究を重ねた結果、本発明を、
固定ボス部と該固定ボス部の軸方向端部に固着した固定
側プーリフェースとからなる固定プーリ半体と、可動ボ
ス部と、該可動ボス部の軸方向端に固着した可動側プー
リフェースとからなる可動プーリ半体とからなり、固定
側プーリフェースと可動側プーリフェースとが最も近接
状態のみ、固定プーリ半体と可動プーリ半体ともに逆回
転可能となる無段変速プーリ装置としたことにより、こ
の種の無段変速プーリ装置において、車両のバック走行
を最低速度のみにするこができ、上記課題を解決したも
のである。
Means for Solving the Problems Therefore, the inventor of the present invention has conducted intensive studies to solve the above-mentioned problems, and as a result, the present invention
A fixed pulley half composed of a fixed boss portion and a fixed pulley face fixed to an axial end of the fixed boss portion, a movable boss portion, and a movable pulley face fixed to the axial end of the movable boss portion; And a continuously variable pulley device in which the fixed pulley face and the movable pulley face can be reversely rotated only in the state where the fixed pulley face and the movable pulley face are closest to each other. In this type of continuously variable transmission pulley device, the above problem can be solved by enabling the vehicle to travel only at the minimum speed in the reverse traveling.

【0006】[0006]

【作用】図9に示すように、無段変速プーリ装置におい
て、その駆動プーリ体Bと被駆動プーリ体Aに巻掛けら
れているベルト12の初期状態(停止時を含む)は、駆
動プーリ体Bのベルト駆動径Rbは小さく、被駆動プー
リ体Aのベルト被駆動径Raは大きくなっている〔図2
(A)参照〕。これは、駆動プーリ体Bの初動時の小さ
な力でも被駆動プーリ体Aに回転力を伝達しやすくする
ためである。
As shown in FIG. 9, in the continuously variable transmission pulley device, the initial state (including when stopped) of the belt 12 wound around the driving pulley body B and the driven pulley body A is the driving pulley body. B has a small belt driving diameter Rb, and the driven pulley body A has a large belt driven diameter Ra [FIG.
(A)]. This is because even a small force at the time of the initial movement of the driving pulley body B can easily transmit the rotational force to the driven pulley body A.

【0007】その駆動プーリ体Bは、モータ,エンジン
等の原動機にて回転駆動し、その回転数にともなって、
駆動プーリ体Bは、遠心力によって外周径方向に移動す
るウェイトをカム面に沿って移動させることにより、駆
動可動プーリ半体B2 を駆動固定プーリ半体B1 側に移
動させ、該駆動固定プーリ半体B1 と駆動可動プーリ半
体B2 とを近接させて、ベルト駆動径Rbを小径から大
径に可変させる構造である〔図2(B)参照〕。
The driving pulley body B is driven to rotate by a prime mover such as a motor or an engine.
Driving pulley member B is a weight to be moved to the outside diameter direction by a centrifugal force by moving along the cam surface moves the driving movable half pulley B 2 to drive the fixed pulley half body B 1 side, the drive fixed in proximity of the pulley half B 1 and the drive movable pulley half B 2, a structure for varying the large diameter of the belt driving diameter Rb of the small-diameter [refer to FIG. 2 (B)].

【0008】その駆動側プーリ体Bのベルト駆動径Rb
の変化によって、被駆動側プーリ体Aは、可動プーリ半
体A2 を軸方向に移動させ、固定プーリ半体A1 との間
の距離を適宜に変化させて、被ベルト駆動径Raを変化
させ、この被ベルト駆動径Raの変化により、被駆動側
プーリ体Aの回転速度がコントロールされる。この被駆
動側プーリ体Aにおける可動プーリ半体A2 は、常時,
コイルスプリング等の弾発部材10の弾発力によって固
定プーリ半体A1 側に押し付けられるように付勢されて
いる〔図1(A)及び(B)参照〕。
The belt driving diameter Rb of the driving pulley body B
The change, the driven side pulley body A moves the movable pulley half A 2 in the axial direction, and suitably varying the distance between the fixed pulley half A 1, changed the belt drive diameter Ra Then, the rotation speed of the driven pulley body A is controlled by the change in the driven belt driving diameter Ra. The movable pulley half A 2 in the driven pulley A is always
Is biased manner is pressed against the fixed pulley half A 1 side by the resilient force of the resilient member 10 such as a coil spring [FIG 1 (A) and (B) refer to Fig.

【0009】図4(A)における、間隔L0 は、固定側
プーリーフェース3と可動側プーリーフェース7とが最
も近接した状態であり、被ベルト駆動径Raが最大とな
り、被駆動側プーリ体Aが停止時或いは略最低速度時の
状態であり、この間隔L0 の状態から被駆動側プーリ体
Aが始動する。図4(C)の間隔L1 は、固定側プーリ
ーフェース3と可動側プーリーフェース7とが最も離間
した状態であり、被ベルト駆動径Raが最小となり、被
駆動側プーリ体Aが最高速度にて回転している状態であ
る。
The interval L 0 in FIG. 4A is a state where the fixed-side pulley face 3 and the movable-side pulley face 7 are closest to each other. There is a state of stop or at substantially the lowest speed, to start the driven pulley body a from the state of the spacing L 0. Distance L 1 shown in FIG. 4 (C) shows a state where the fixed-side pulley face 3 and the movable pulley face 7 are farthest apart from each other, it is the belt drive diameter Ra is minimum, the driven side pulley body A is the maximum speed Is rotating.

【0010】その可動プーリ半体A2 が移動する時は、
被ベルト駆動径Raを変化させる力が、可動プーリ半体
2 を弾発している弾発部材10の弾発力を上回って、
弾発部材10を押し縮める。そして、可動プーリ半体A
2 には、軸方向に移動する力が作用して、軸方向に移動
しようとするが、抵抗溝6bを軸方向に対して斜めにす
ることで、該抵抗溝6bと固定ボス部1側のカムピン2
との間に摺動抵抗が生じて、可動プーリ半体A2 を固定
プーリ半体A1 から離れるように移動させないで、適
宜,中間位置で略停止状態を保持させたり、又は軸方向
への移動をゆっくりとさせることができる〔図4(A)
乃至(C)参照〕。
[0010] When the movable pulley half A 2 is moved,
Force for changing the the belt drive diameter Ra is greater than the elastic force of Tamahatsu member 10 emanating bullet the movable pulley half A 2,
The elastic member 10 is compressed. And movable pulley half A
2 , a force that moves in the axial direction acts to move in the axial direction. By making the resistance groove 6b oblique to the axial direction, the resistance groove 6b and the fixed boss 1 side Cam pin 2
Between the movable pulley half A 2 and the fixed pulley half A 1 without moving the movable pulley half A 2 away from the fixed pulley half A 1 . The movement can be made slow [Fig. 4 (A)
To (C)].

【0011】この抵抗溝6bの形状を変えることで、可
動プーリ半体A2 の移動パターンを種々限定するカム機
構となる。その被駆動プーリ体Aが前進(正)方向の回
転時に抵抗溝6bがカムピン2に擦り当るように斜面を
形成しており、具体的には、可動プーリ半体A2 に、前
記抵抗溝6bを含めたカム溝6が形成されている。該カ
ム溝6に固定ボス部1に設けられたカムピン2に係合す
る構造である〔図3(A)及び(B)参照〕。
[0011] By changing the shape of the resistor groove 6b, comprising the movement pattern of the movable pulley half A 2 a cam mechanism for various limiting. As the driven pulley member A moves forward (positive) resistance grooves 6b during rotation directions forms an inclined surface so as to impinge rubbing cam pins 2, specifically, the movable pulley half A 2, the resistor groove 6b Are formed. The structure engages with the cam pin 2 provided on the fixed boss portion 1 in the cam groove 6 (see FIGS. 3A and 3B).

【0012】該カム溝6は、係合溝6aと抵抗溝6bと
からなるが、斜め方向の抵抗溝6bの作用は、可動プー
リ半体A2 が被ベルト駆動径Raの変化に伴って固定プ
ーリ半体A1 から離れる方向に移動する際、固定プーリ
半体A1 の固定ボス部1に設けたカムピン2に可動プー
リ半体A2 の抵抗溝6bの斜面が擦り当り、カムピン2
が抵抗溝6bから抵抗を受けるようになっている〔図4
(A)乃至(B)及び図5(B)参照、〕。その抵抗溝
6bは可動ボス部5の軸方向に対して角度θの傾斜を有
している。そして、カムピン2が抵抗溝6bに及ぼす抵
抗力Fは、図5(B)に示すよう、抵抗溝6bの傾斜方
向と抵抗溝6bに直交する方向の力の合力になる。
[0012] The cam groove 6 is comprised of a engagement groove 6a and the resistor groove 6b, the action of the oblique resistance grooves 6b, the movable half pulley A 2 is with a change in the belt drive diameter Ra fixed when moving in a direction away from the pulley half a 1, slope per rubbing of the fixed pulley half a 1 of the fixed boss resistor groove 6b of the movable pulley half a 2 to cam pins 2 provided on one cam pin 2
Receive the resistance from the resistance groove 6b [FIG.
(A) to (B) and FIG. 5 (B). The resistance groove 6 b has an inclination of an angle θ with respect to the axial direction of the movable boss 5. The resistance force F exerted on the resistance groove 6b by the cam pin 2 is a resultant force of the force in the direction of inclination of the resistance groove 6b and the direction perpendicular to the resistance groove 6b, as shown in FIG.

【0013】そして、車両がバック走行するときは、図
6(A),(B)に示すように、カムピン2が係合溝6
aに入り込み、カムピン2が係合溝6aの終端6a1
到達し、カムピン2が係合溝6aに係合することによっ
て、ロック状態となり、固定ボス部1の軸方向への移動
ができないようにしてる〔図6(C)参照〕。このこと
により、可動ボス部5が固定ボス部1に対して軸方向に
移動することができない構造となり、被駆動プーリ体A
の逆回転では、低速のみの回転とし、バック走行時にお
ける安全性及び発進安定性を確保するものである。
When the vehicle travels backward, the cam pin 2 is engaged with the engaging groove 6 as shown in FIGS.
enter the a, the cam pin 2 has reached the end 6a 1 of the engagement groove 6a, by the cam pin 2 is engaged with the engagement grooves 6a, in the locked state, so that it can not move in the axial direction of the fixed boss 1 [See FIG. 6 (C)]. This results in a structure in which the movable boss 5 cannot move in the axial direction with respect to the fixed boss 1, and the driven pulley A
In the reverse rotation, the rotation is performed only at a low speed to ensure the safety and the starting stability during the reverse running.

【0014】[0014]

【発明の実施の形態】以下、本発明を図面に基づいて説
明する。その被駆動プーリ体Aは、固定プーリ半体A1
と可動プーリ半体A2 とで構成されている。その固定プ
ーリ半体A1の固定ボス部1の中間にカムピン2を設
け、その固定プーリ半体A1 の固定ボス部1の長手方向
に摺動自在に可動プーリ半体A2 を設けて、その可動プ
ーリ半体A2 の可動ボス部5にカム溝6を設け、固定プ
ーリ半体A1 のカムピン2を可動プーリ半体A2 のカム
溝6に係合して設けている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. The driven pulley body A includes a fixed pulley half body A 1
It is composed of a movable pulley half A 2. As the stationary pulley half A fixing boss intermediate cam pins 2 1 1 provided by providing a slidably movable pulley half A 2 in the longitudinal direction of the fixed boss portion 1 that fixed pulley half A 1, the cam grooves 6 provided in the movable boss portion 5 of the movable pulley half body a 2, is provided with a cam pin 2 fixed pulley half a 1 engaged with the cam grooves 6 of the movable pulley half a 2.

【0015】具体的には、被駆動プーリ体Aは、図1
(A),(B)に示すように、固定プーリ半体A1 と可
動プーリ半体A2 とから構成される。その固定プーリ半
体A1は、図3(A)に示すように、固定ボス部1と固
定側プーリフェース3とが形成されている。その固定ボ
ス部1の外周側面の所定箇所には、カムピン2が突出形
成されている。該カムピン2は、円筒状に形成され、固
定ボス部1の所定箇所に圧入されている。その可動プー
リ半体A2 は、図3(B)に示すように、可動ボス部
5,カム溝6と可動側プーリフェース7とから構成され
る。
Specifically, the driven pulley body A is shown in FIG.
(A), as shown (B), the composed stationary pulley half A 1 and the movable pulley half body A 2 Prefecture. Its fixed pulley half A 1, as shown in FIG. 3 (A), and the fixed boss portion 1 and the fixed side pulley face 3 is formed. A cam pin 2 is formed at a predetermined position on the outer peripheral side surface of the fixed boss 1 to protrude. The cam pin 2 is formed in a cylindrical shape, and is press-fitted into a predetermined portion of the fixed boss 1. Its movable pulley half A 2, as shown in FIG. 3 (B), the movable boss portion 5, and a cam groove 6 and the movable pulley face 7.

【0016】その駆動プーリ体Bは、駆動固定プーリ半
体B1 と駆動可動プーリ半体B2 とを遠心力作用によっ
て駆動可動プーリ半体B2 を作動させ、駆動固定プーリ
半体B1 と駆動可動プーリ半体B2 との間の距離を可変
させる。その駆動プーリ体Bからベルト12を介して動
力が伝達される被駆動プーリ体Aを設けている。
[0016] As a driving pulley member B is a a driving fixed pulley half body B 1 and driving the movable pulley half body B 2 by operating the driving movable half pulley B 2 by centrifugal force action, and the driving fixed pulley half B 1 the distance between the driving movable half pulley B 2 is varied. A driven pulley A to which power is transmitted from the driving pulley B via the belt 12 is provided.

【0017】その固定プーリ半体A1 の固定ボス部1の
端部には、可動プーリ半体A2 を押圧する弾発部材10
が固着されている〔図1(A)及び(B)参照〕。その
可動プーリ半体A2 の背面側に弾発部材10を設けて、
可動プーリ半体A2 を固定プーリ半体A1 の方向へ常時
弾発している。弾発部材10の外周を包囲するようにし
てカバー部材11を設け、該カバー部材11を車輪に伝
達する軸部材に連結する。
[0017] At the end of the fixed boss portion 1 that fixed pulley half A 1, resilient member 10 for pressing the movable pulley half A 2
Are fixed [see FIGS. 1A and 1B]. The Tamahatsu member 10 on the rear side of the movable pulley half A 2 is provided,
Emanates always elastically movable pulley half A 2 in the direction of the stationary pulley half A 1. A cover member 11 is provided so as to surround the outer periphery of the resilient member 10, and the cover member 11 is connected to a shaft member transmitting to the wheels.

【0018】被駆動プーリ体Aは、前進(正)方向の回
転時に、駆動プーリ体Bのベルト駆動径Rbの可変状態
に対応して、固定側プーリーフェース3と可動側プーリ
ーフェース7との間の距離が可変し、被駆動側プーリ体
Aの被ベルト駆動径Raを可変させることができる。
When the driven pulley body A rotates in the forward (positive) direction, the driven pulley body A moves between the fixed pulley face 3 and the movable pulley face 7 according to the variable state of the belt drive diameter Rb of the drive pulley body B. Is variable, and the driven belt driving diameter Ra of the driven pulley body A can be changed.

【0019】さらに、詳しくは、被駆動プーリ体Aは、
駆動時にベルト12の被ベルト駆動径Raが最大のとき
は、被駆動側プーリ体Aの回転速度が低速の状態である
〔図2(A)参照〕。そして、駆動プーリ体Bが回転速
度を徐々に上げてゆくと、これに応じて、被駆動プーリ
体A側では、図2(B)に示すように、ベルト12が固
定側プーリーフェース3と可動側プーリーフェース7と
の係合面に沿って、徐々に中心方向に向かいつつ、可動
プーリ半体A2 は固定プーリ半体A1 との距離を大きく
し、被ベルト駆動径Raは次第に小さくなり、被駆動プ
ーリ体Aの回転速度が高速側に可変して、走行状態に合
わせて無段階に変速する。これらは、前進方向の回転に
対する作動状態である。
More specifically, the driven pulley body A is
When the driven belt diameter Ra of the belt 12 during driving is maximum, the rotation speed of the driven pulley body A is low (see FIG. 2A). When the rotation speed of the driving pulley body B gradually increases, the belt 12 moves with the fixed pulley face 3 on the driven pulley body A side as shown in FIG. along the engagement surface of the side pulley face 7 is gradually moving toward the center direction, the movable pulley half a 2 to increase the distance between the fixed pulley half a 1, the belt drive diameter Ra gradually decreases Then, the rotation speed of the driven pulley body A is changed to the high speed side, and the speed is continuously changed according to the running state. These are operating states for forward rotation.

【0020】図4(A)における、間隔L0 は、固定側
プーリーフェース3と可動側プーリーフェース7とが最
も近接した状態であり、被ベルト駆動径Raが最大とな
り、被駆動側プーリ体Aが停止時或いは略最低速度時の
状態である。この間隔L0 の状態から被駆動側プーリ体
Aは駆動プーリ体Bによって始動する。図4(C)の間
隔L1 は、固定側プーリーフェース3と可動側プーリー
フェース7とが最も離間した状態であり、被ベルト駆動
径Raが最小となり、被駆動側プーリ体Aが最高速度に
て回転している状態である。カムピン2とカム溝6との
役目は、上述した固定側プーリーフェース3と可動側プ
ーリーフェース7との近接、離間の動作に抵抗し、急激
な速度変化とならないようにする等の役目をなしてい
る。
In FIG. 4A, the distance L 0 is a state in which the fixed pulley face 3 and the movable pulley face 7 are closest to each other, the driven belt drive diameter Ra becomes maximum, and the driven pulley body A Is a state at the time of stop or at a substantially minimum speed. From the state of the interval L 0, the driven pulley A is started by the driving pulley B. Distance L 1 shown in FIG. 4 (C) shows a state where the fixed-side pulley face 3 and the movable pulley face 7 are farthest apart from each other, it is the belt drive diameter Ra is minimum, the driven side pulley body A is the maximum speed Is rotating. The role of the cam pin 2 and the cam groove 6 serves to resist the above-described movement of the fixed-side pulley face 3 and the movable-side pulley face 7 toward and away from each other, and to prevent a sudden speed change. I have.

【0021】カム溝6は、係合溝6aと抵抗溝6bとか
らなり、速度変速特性のバリエーションにより、種々の
形状のものが、設計上,選択される。例えば、抵抗溝6
bの形状としては、図1,図3(B)等に示すように、
可動ボス部5の軸心線に対して適宜,傾斜方向に長穴を
形したもので、直線形状或いは曲線形状等がある。
The cam groove 6 includes an engagement groove 6a and a resistance groove 6b, and various shapes are selected in design according to variations in speed change characteristics. For example, the resistance groove 6
As the shape of b, as shown in FIGS.
An elongated hole is appropriately formed in the inclined direction with respect to the axis of the movable boss portion 5, and has a linear shape or a curved shape.

【0022】次に、バック方向の回転に対しては、前記
抵抗溝6bの前進方向に回転作動させる領域の低可変速
比領域、すなわち、被駆動プーリ体Aにおいて、被ベル
ト駆動径Raの大きい状態(固定プーリ半体A1 と可動
プーリ半体A2 との間の距離が小さく接近している状
態)であるとき、可動プーリ半体A2 が固定プーリ半体
1 の固定ボス部1の軸方向に沿って移動しないよう
に、カムピン2が可動ボス部5とロックする係合溝6a
が、前記抵抗溝6bに連続して設けられる〔図1,図3
(B)及び図5(B)等参照〕。
Next, with respect to the rotation in the back direction, in the low variable speed ratio region in which the resistance groove 6b is rotated in the forward direction, that is, in the driven pulley body A, the driven belt driving diameter Ra is large. state when it is (distance between the fixed pulley half a 1 and a movable pulley half body a 2 is small close to that state), the fixed boss portion 1 movable pulley half a 2 is fixed pulley half a 1 The cam pin 2 is locked with the movable boss 5 so that the cam pin 2 does not move along the axial direction of
Are provided continuously to the resistance groove 6b [FIGS.
(B) and FIG. 5B).

【0023】該係合溝6aは、可動ボス部5の軸周方向
に沿って形成されたものであり、カムピン2が係合溝6
aに入り込んだときには、図6(C)に示すように、カ
ムピン2が可動ボス部5の軸方向に移動しないようにし
ている。ここで、可動ボス部5の軸周方向は、図5
(B),図6(C)等において、(一点鎖線)j−jの
線方向にて示している。
The engaging groove 6a is formed along the axial direction of the movable boss 5, and the cam pin 2 is
6C, the cam pin 2 is prevented from moving in the axial direction of the movable boss 5 as shown in FIG. Here, the axial direction of the movable boss 5 is the same as that in FIG.
6 (B) and FIG. 6 (C), the line direction is indicated by (dashed-dotted line) j-j.

【0024】その係合溝6aは、上述したように、可動
ボス部5の軸周方向に沿って形成されるものであるが、
さらに、係合溝6aのその終端6a側が可動側プーリフ
ェース7側方向に傾斜して形成されたタイプが存在する
〔図7(A)及び(B)参照〕。或いは、係合溝6aの
その終端6a側が前記可動側プーリーフェース7の形成
側と反対方向、即ち可動ボス部5の軸方向端部側に傾斜
して形成されたタイプのものが存在する〔図8(A)及
び(B)参照〕。
The engagement groove 6a is formed along the axial direction of the movable boss 5, as described above.
Further, there is a type in which the end 6a side of the engagement groove 6a is formed to be inclined toward the movable pulley face 7 [see FIGS. 7A and 7B]. Alternatively, there is a type in which the end 6a side of the engagement groove 6a is inclined in a direction opposite to the side on which the movable pulley face 7 is formed, that is, in the axial end side of the movable boss portion 5 [FIG. 8 (A) and (B)].

【0025】その係合溝6aの傾斜方向は、図7(B)
及び図8(B)に、一点鎖線k−kにて示されている。
そして、係合溝6aの可動ボス部5の軸周方向(前記一
点鎖線にて示した線方向j−j)に対する傾斜角度α
は、僅かなものであることが好適である〔図7(B)及
び図8(B)参照〕。その係合溝6aが可動側プーリフ
ェース7側方向に傾斜した場合、カムピン2は、係合溝
6a内で、僅かに軸方向に移動し、カムピン2が終端6
aに当接し、このとき、図7(A)に示すように、固定
側プーリーフェース3と可動側プーリーフェース7とが
僅かに離間して間隔L2 となり、バック走行における、
安全性を維持する最小限の加速を得ることができる。
The inclination direction of the engaging groove 6a is shown in FIG.
8B, and is indicated by a dashed line kk.
Then, the inclination angle α of the engagement groove 6a with respect to the axial circumferential direction of the movable boss portion 5 (the line direction j-j indicated by the dashed line).
Is preferably small [see FIGS. 7 (B) and 8 (B)]. When the engaging groove 6a is inclined in the direction of the movable pulley face 7, the cam pin 2 slightly moves in the axial direction within the engaging groove 6a, and
contact with a, at this time, as shown in FIG. 7 (A), the fixed side pulley face 3 and the movable pulley face 7 is slightly spaced intervals L 2 and next, in the back travel,
Minimal acceleration can be obtained to maintain safety.

【0026】また、可動側プーリフェース7側と反対方
向に傾斜した場合、図8(A)に示すように、カムピン
2は、係合溝6a内で可動側プーリフェース7を固定側
プーリフェース3側に移動させるように働き、初期状態
の間隔L0 からさらに近接する間隔L3 に狭まり、固定
側プーリーフェース3と可動側プーリーフェース7との
間隔が最小状態に保持され、被駆動プーリ体Aにおいて
最も低速状態に維持されるのでバック走行の発進をより
一層,安定させることができる。
When the movable pulley face 7 is inclined in the opposite direction to the movable pulley face 7 side, as shown in FIG. 8A, the cam pin 2 moves the movable pulley face 7 into the fixed pulley face 3 in the engagement groove 6a. acts to move to the side, narrowing the interval L 3 further close from the interval L 0 in the initial state, the distance between the fixed side pulley face 3 and the movable pulley face 7 is held to a minimum state, the driven pulley member a In this case, since the vehicle is maintained at the lowest speed, the start of the reverse traveling can be further stabilized.

【0027】[0027]

【発明の効果】請求項1の発明は、固定ボス部1と該固
定ボス部1の軸方向端部に固着した固定側プーリフェー
ス3とからなる固定プーリ半体A1 と、可動ボス部5
と、該可動ボス部5の軸方向端に固着した可動側プーリ
フェース7とからなる可動プーリ半体A2 とからなり、
固定側プーリフェース3と可動側プーリフェース7とが
最も近接状態のみ、固定プーリ半体A1 と可動プーリ半
体A2 ともに逆回転可能となる無段変速プーリ装置とし
たことにより、プーリ体の逆回転(バック走行)におけ
る加速を防止し、安全を確保することができる。
According to the first aspect of the present invention, a fixed pulley half A1 comprising a fixed boss 1 and a fixed pulley face 3 fixed to an axial end of the fixed boss 1;
When consists movable pulley half A 2 Metropolitan consisting movable pulley face 7 for fixed to axial end of the movable boss portion 5,
A stationary pulley face 3 and the movable pulley face 7 closest state only, by having a continuously variable transmission pulley device comprising a stationary pulley half A 1 and a movable pulley half body A 2 together can reverse rotation, the pulley member Acceleration in reverse rotation (back running) can be prevented, and safety can be ensured.

【0028】上記効果を詳述すると、プーリ体が逆回転
するときには、固定側プーリフェース3と可動側プーリ
フェース7とが最も近接状態に維持されているので、被
駆動プーリ体Aは、駆動プーリ体Bからの伝達駆動を低
速の状態に維持することができる。従って、バックする
ときに、いきなり高速状態となることがなく、安全を確
保することができる。さらに、低速発進となるので、エ
ンジンや電動モータ等の動力源に大きな負荷がかかるこ
とがなく、起動時のエンジン停止や電動モータの損傷を
防止することができる。
The above effect will be described in detail. When the pulley rotates in the reverse direction, the fixed pulley face 3 and the movable pulley face 7 are maintained in the closest state. The transmission drive from the body B can be maintained at a low speed. Therefore, when backing up, the vehicle does not suddenly enter a high-speed state, and safety can be ensured. Further, since the vehicle is started at a low speed, a large load is not applied to a power source such as an engine or an electric motor, so that it is possible to prevent the engine from being stopped at the time of startup or damage to the electric motor.

【0029】次に、請求項2の発明は、固定ボス部1の
外周面にカムピン2を設け,該固定ボス部1の軸方向端
部に固定側プーリフェース3を設けた固定プーリ半体A
1 と、可動ボス部5のカム溝6と,該可動ボス部5の軸
方向端部に可動側プーリフェース7を設けてなる可動プ
ーリ半体A2 と、可動側プーリフェース7を固定側プー
リフェース3側に押圧する弾発部材とからなり、前記カ
ム溝6はカムピン2が挿入され、可動ボス部5の軸方向
に傾斜する抵抗溝6bと,可動ボス部5の略軸周方向に
伸びる係合溝6aとからなり,該係合溝6aは抵抗溝6
bの可動側プーリフェース7側と反対側の端部位置とし
てなる無段変速プーリ装置としたことにより、バック走
行時に低速を維持して、発進を安定させ、安全性を確保
することができ、その構造も簡単なものにできる。
Next, according to a second aspect of the present invention, there is provided a fixed pulley half A having a cam pin 2 provided on an outer peripheral surface of a fixed boss 1 and a fixed pulley face 3 provided at an axial end of the fixed boss 1.
1 , a cam groove 6 of the movable boss 5, a movable pulley half A 2 having a movable pulley face 7 provided at an axial end of the movable boss 5, and a fixed pulley The cam groove 6 has a cam pin 2 inserted therein, and the cam groove 6 extends in the axial direction of the movable boss portion 5 and a resistance groove 6b inclined in the axial direction of the movable boss portion 5. An engagement groove 6a, and the engagement groove 6a
By setting the continuously variable speed pulley device at the end position opposite to the movable pulley face 7 b, the vehicle can maintain a low speed during back running, stabilize starting, and secure safety. Its structure can be simplified.

【0030】上記効果を詳述すると、被駆動プーリ体A
は固定側プーリフェース3と可動側プーリフェース7と
が最も近接した状態で、バック走行を開始するときに、
そのカム溝6内のカムピン2は、固定プーリ半体A1
可動プーリ半体A2 との初動のタイミングの僅かなズレ
により、カムピン2が係合溝6aの中に入り込み、逆回
転(バック走行)時に低変速比を維持したまま、バック
走行を行う。
The above effect will be described in detail.
When back running is started with the fixed pulley face 3 and the movable pulley face 7 closest to each other,
Cam pins 2 of the cam groove 6, by a slight shift in the timing of initial of a stationary pulley half A 1 and the movable pulley half body A 2, the cam pins 2 enters into the engaging groove 6a, the reverse rotation (back Back traveling is performed while maintaining the low gear ratio at the time of traveling).

【0031】さらに、係合溝6aは、可動ボス部5の軸
周方向に沿って形成されているので、係合溝6aに係合
したカムピン2は、バック走行時には、軸方向に移動す
ることができないようになっており、バック走行時の安
全性を確保することができる。
Furthermore, since the engagement groove 6a is formed along the axial direction of the movable boss 5, the cam pin 2 engaged with the engagement groove 6a moves in the axial direction during the reverse running. It is not possible to secure the safety when traveling in reverse.

【0032】また、バック走行において、一定回転トル
クとするための歯車機構を設ける必要がないため、装置
が小型化し、重量の低減ができる。従来装置の構造に対
して、抵抗溝6bに保持孔を設けるだけなので、大幅な
変更をすることなく、簡単に改良することができ、コス
ト低減ができる。
In addition, since there is no need to provide a gear mechanism for achieving a constant rotational torque in the reverse running, the size of the apparatus can be reduced and the weight can be reduced. As compared with the structure of the conventional device, only the holding hole is provided in the resistance groove 6b, so that it is possible to easily improve without a large change and reduce the cost.

【0033】次に、請求項3の発明は、請求項2におい
て、前記係合溝6aは、可動ボス部5の周方向に対し
て、係合溝6aの終端側を可動側プーリフェース7側方
向に傾斜してなる無段変速プーリ装置としたことによ
り、カムピン2は係合溝6aに入り込み、これに係合す
るとともに、係合溝6aはその終端6a側が可動側プー
リフェース7側又はその反対側に傾斜している。
Next, according to a third aspect of the present invention, in the second aspect, the engaging groove 6a is arranged such that the end side of the engaging groove 6a is on the movable pulley face 7 side with respect to the circumferential direction of the movable boss portion 5. The cam pin 2 enters the engaging groove 6a and engages with the engaging groove 6a, and the end 6a of the engaging groove 6a has the movable pulley face 7 or the movable pulley face. It is inclined to the other side.

【0034】そのために、可動側プーリフェース7側に
傾斜している場合、係合溝6aの終端6aとカムピン2
とが当接するときには、固定側プーリフェース3と可動
側プーリフェース7とが僅かに拡開可能となり、バック
走行時に安全性の範囲内で加速することができるし、ま
た、可動ボス部5の軸周方向に対して可動側プーリフェ
ース7側に傾斜した係合溝6aとカムピン2との係合は
比較的強固とし、より一層の安全性を確保することがで
きる。
For this reason, when inclined toward the movable pulley face 7, the end 6a of the engagement groove 6a and the cam pin 2
Abuts, the fixed-side pulley face 3 and the movable-side pulley face 7 can be slightly expanded, so that the vehicle can accelerate within a range of safety during back traveling, and the shaft of the movable boss portion 5 can be accelerated. The engagement between the cam groove 2 and the engagement groove 6a inclined toward the movable pulley face 7 with respect to the circumferential direction is relatively strong, and further safety can be secured.

【0035】次に、請求項4の発明は、請求項2におい
て、前記係合溝6aは、可動ボス部5の周方向に対し
て、係合溝6aの終端側を可動ボス部5の軸方向に傾斜
してなる無段変速プーリ装置としたことにより、前記可
動側プーリフェース7側と反対側に傾斜していることに
なり、可動側プーリフェース7を固定側プーリフェース
3側に移動可能となり、バック走行時に低速状態より、
安定して保持することができ、安全性の維持及び発進時
の安定性を確保することができる。
According to a fourth aspect of the present invention, in the second aspect, the engaging groove 6a is arranged such that a terminal end side of the engaging groove 6a is a shaft of the movable boss 5 with respect to a circumferential direction of the movable boss 5. With the continuously variable pulley device inclined in the direction, the movable pulley face 7 is inclined to the opposite side to the movable pulley face 7 side, and the movable pulley face 7 can be moved to the fixed pulley face 3 side. And when driving backwards,
It can be stably held, and safety can be maintained and stability at the time of starting can be secured.

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

【図1】(A)は本発明の一部切除した斜視図 (B)は本発明の縦断側面図FIG. 1A is a partially cutaway perspective view of the present invention, and FIG. 1B is a longitudinal side view of the present invention.

【図2】(A)は被駆動プーリ体側が低速となる状態を
示す略示図 (B)は被駆動プーリ体側が高速となる状態を示す略示
FIG. 2A is a schematic diagram showing a state where the driven pulley body side is at a low speed; FIG. 2B is a schematic diagram showing a state where the driven pulley body side is at a high speed;

【図3】(A)は固定プーリ半体の一部切除した斜視図 (B)は可動プーリ半体の一部切除した斜視図FIG. 3A is a perspective view of a fixed pulley half partially cut away, and FIG. 3B is a perspective view of a movable pulley half cut partially.

【図4】(A)は固定側プーリフェースと可動側プーリ
フェースとの間隔が最小の状態を示す作用図 (B)は固定側プーリフェースと可動側プーリフェース
との間隔が略中間の状態を示す作用図 (C)は固定側プーリフェースと可動側プーリフェース
との間隔が略最大の状態を示す作用図
FIG. 4A is an operation view showing a state in which the distance between the fixed pulley face and the movable pulley face is minimum. FIG. 4B is a state in which the distance between the fixed pulley face and the movable pulley face is substantially intermediate. The operation diagram (C) shows the state in which the distance between the fixed pulley face and the movable pulley face is substantially maximum.

【図5】(A)はカムピンが抵抗溝と押圧した状態で接
触している略示図 (B)はカムピンが抵抗溝と押圧した状態で接触してい
る作用図
5A is a schematic view in which a cam pin is in contact with a resistance groove in a pressed state, and FIG. 5B is an operation view in which a cam pin is in contact with a resistance groove in a pressed state.

【図6】(A)はカムピンが係合溝に入る直前の状態を
示す作用図 (B)はカムピンが係合溝に入った状態を示す作用図 (C)はカムピンが係合溝に入った状態の作用図
6A is an operation diagram showing a state immediately before the cam pin enters the engagement groove. FIG. 6B is an operation diagram showing a state where the cam pin enters the engagement groove. FIG. 6C is an operation diagram showing the state where the cam pin enters the engagement groove. Action diagram

【図7】(A)は別の実施の形態の係合溝を有する本発
明を示す縦断側面図 (B)は(A)の作用図
7A is a longitudinal sectional side view showing the present invention having an engagement groove according to another embodiment. FIG. 7B is an operation view of FIG.

【図8】(A)はさらに別の実施の形態の係合溝を有す
る本発明を示す縦断側面図 (B)は(A)の作用図
FIG. 8A is a longitudinal sectional side view showing the present invention having an engagement groove according to still another embodiment. FIG. 8B is an operation view of FIG.

【図9】駆動プーリ体と被駆動プーリ体との構成を示す
略示図
FIG. 9 is a schematic view showing a configuration of a driving pulley body and a driven pulley body.

【符号の説明】[Explanation of symbols]

1 …固定プーリ半体 1…固定ボス部 2…カムピン 3…固定側プーリフェース A2 …可動プーリ半体 5…可動ボス部 6…カム溝 6a…係合溝 6b…抵抗溝 7…可動側プーリフェース 10…弾発部材A 1 : fixed pulley half 1 ... fixed boss 2 ... cam pin 3 ... fixed side pulley face A 2 ... movable pulley half 5 ... movable boss 6 ... cam groove 6a ... engagement groove 6b ... resistance groove 7 ... movable side Pulley face 10: elastic member

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 固定ボス部と該固定ボス部の軸方向端部
に固着した固定側プーリフェースとからなる固定プーリ
半体と、可動ボス部と、該可動ボス部の軸方向端に固着
した可動側プーリフェースとからなる可動プーリ半体と
からなり、固定側プーリフェースと可動側プーリフェー
スとが最も近接状態のみ、固定プーリ半体と可動プーリ
半体ともに逆回転可能となることを特徴とした無段変速
プーリ装置。
A fixed pulley half comprising a fixed boss portion and a fixed pulley face fixed to an axial end of the fixed boss portion; a movable boss portion; and a fixed boss portion fixed to an axial end of the movable boss portion. It is composed of a movable pulley half composed of a movable pulley face, and only when the fixed pulley face and the movable pulley face are closest to each other, both the fixed pulley half and the movable pulley half can rotate in reverse. Continuously variable pulley device.
【請求項2】 固定ボス部の外周面にカムピンを設け,
該固定ボス部の軸方向端部に固定側プーリフェースを設
けた固定プーリ半体と、可動ボス部のカム溝と,該可動
ボス部の軸方向端部に可動側プーリフェースを設けてな
る可動プーリ半体と、可動側プーリフェースを固定側プ
ーリフェース側に押圧する弾発部材とからなり、前記カ
ム溝はカムピンが挿入され、可動ボス部の軸方向に傾斜
する抵抗溝と,可動ボス部の略軸周方向に伸びる係合溝
とからなり,該係合溝は抵抗溝の可動側プーリフェース
側と反対側の端部位置としてなることを特徴とした無段
変速プーリ装置。
2. A cam pin is provided on an outer peripheral surface of a fixed boss portion,
A fixed pulley half provided with a fixed pulley face at the axial end of the fixed boss, a cam groove of the movable boss, and a movable pulley face provided at the axial end of the movable boss. The cam groove includes a pulley half and a resilient member for pressing the movable side pulley face toward the fixed side pulley face. A cam pin is inserted into the cam groove, and a resistance groove inclined in the axial direction of the movable boss portion and a movable boss portion. A continuously variable pulley device characterized by comprising an engagement groove extending substantially in the circumferential direction of the shaft, wherein the engagement groove is located at an end portion of the resistance groove opposite to the movable pulley face side.
【請求項3】 請求項2において、前記係合溝は、可動
ボス部の周方向に対して、係合溝の終端側を可動側プー
リフェース側方向に傾斜してなることを特徴とした無段
変速プーリ装置。
3. The method according to claim 2, wherein the engagement groove is formed such that a terminal end side of the engagement groove is inclined in a direction toward the movable pulley face with respect to a circumferential direction of the movable boss portion. Variable speed pulley device.
【請求項4】 請求項2において、前記係合溝は、可動
ボス部の周方向に対して、係合溝の終端側を可動ボス部
の軸方向に傾斜してなることを特徴とした無段変速プー
リ装置。
4. The movable groove according to claim 2, wherein an end of the engaging groove is inclined in an axial direction of the movable boss with respect to a circumferential direction of the movable boss. Variable speed pulley device.
JP26491896A 1996-10-04 1996-10-04 Continuously variable pulley device Expired - Fee Related JP3164517B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26491896A JP3164517B2 (en) 1996-10-04 1996-10-04 Continuously variable pulley device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26491896A JP3164517B2 (en) 1996-10-04 1996-10-04 Continuously variable pulley device

Publications (2)

Publication Number Publication Date
JPH10110797A true JPH10110797A (en) 1998-04-28
JP3164517B2 JP3164517B2 (en) 2001-05-08

Family

ID=17410018

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26491896A Expired - Fee Related JP3164517B2 (en) 1996-10-04 1996-10-04 Continuously variable pulley device

Country Status (1)

Country Link
JP (1) JP3164517B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002250417A (en) * 2001-02-23 2002-09-06 Kawasaki Heavy Ind Ltd V-belt speed variable change gear for irregular ground running vehicle
EP1413802A1 (en) * 2002-10-25 2004-04-28 Lombardini S.r.l. a Socio Unico Pulley for a continuously-variable ratio drive
JP2008133935A (en) * 2006-11-29 2008-06-12 Yamaha Motor Co Ltd Belt-type continuously variable transmission and saddle-riding type vehicle equipped with the same
KR101331716B1 (en) * 2013-02-04 2013-11-20 안영미 Continuosly variable transmission
KR101411394B1 (en) * 2012-05-07 2014-07-10 덕창기계주식회사 Continuously variable transmission

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002250417A (en) * 2001-02-23 2002-09-06 Kawasaki Heavy Ind Ltd V-belt speed variable change gear for irregular ground running vehicle
EP1413802A1 (en) * 2002-10-25 2004-04-28 Lombardini S.r.l. a Socio Unico Pulley for a continuously-variable ratio drive
JP2008133935A (en) * 2006-11-29 2008-06-12 Yamaha Motor Co Ltd Belt-type continuously variable transmission and saddle-riding type vehicle equipped with the same
KR101411394B1 (en) * 2012-05-07 2014-07-10 덕창기계주식회사 Continuously variable transmission
KR101331716B1 (en) * 2013-02-04 2013-11-20 안영미 Continuosly variable transmission
EP2762396A1 (en) * 2013-02-04 2014-08-06 An, Yeong-Mi Continuosly variable transmission
WO2014119820A1 (en) * 2013-02-04 2014-08-07 안영미 Continuously variable transmission

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