WO2004040168A1 - Stepless speed change apparatus - Google Patents

Stepless speed change apparatus Download PDF

Info

Publication number
WO2004040168A1
WO2004040168A1 PCT/JP2003/009079 JP0309079W WO2004040168A1 WO 2004040168 A1 WO2004040168 A1 WO 2004040168A1 JP 0309079 W JP0309079 W JP 0309079W WO 2004040168 A1 WO2004040168 A1 WO 2004040168A1
Authority
WO
WIPO (PCT)
Prior art keywords
sprocket
transmission
small
sprockets
shaft
Prior art date
Application number
PCT/JP2003/009079
Other languages
French (fr)
Japanese (ja)
Inventor
Hitoshi Fujisawa
Original Assignee
Yugenkaisha Wanda Kikaku
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 Yugenkaisha Wanda Kikaku filed Critical Yugenkaisha Wanda Kikaku
Priority to AU2003252657A priority Critical patent/AU2003252657A1/en
Publication of WO2004040168A1 publication Critical patent/WO2004040168A1/en

Links

Classifications

    • 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
    • F16H—GEARING
    • F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
    • F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
    • F16H9/24—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using chains or toothed belts, belts in the form of links; Chains or belts specially adapted to such gearing
    • 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
    • F16H—GEARING
    • F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
    • F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
    • F16H9/04—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes
    • F16H9/10—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley provided with radially-actuatable elements carrying the belt

Definitions

  • the present invention attaches a special polygon sprocket that can change the apparent pitch circumference to the input shaft and output shaft, and links them by chain transfer to make the apparent pitch circumference of each special sprocket.
  • the present invention relates to a chain-driven, multi-stage, continuously variable transmission that uses the apparent pitch circumference ratio as the gear ratio.
  • a type in which a rotating disk mounted on an input / output shaft is pressed such as a type in which a metal belt is hung on a special variable-diameter pelt wheel, has been put to practical use.
  • a chain transmission a stepwise method of replacing a chain wheel with a combination of a plurality of sprockets is widely used in a bicycle transmission.
  • An object of the present invention is to provide a highly reliable continuous continuously variable transmission that has a simple structure, is lightweight, is compact, and is inexpensive to manufacture. Disclosure of the invention
  • a slide device that can freely move the mounted object radially on a concentric circle.
  • the small sprocket is divided into a part fixed to the shaft and a tooth part that engages with the chain, and the combination of the tooth part and the rotation center of the part fixed to the shaft is combined.
  • the tooth part is elastically supported in the rotation direction by a panel or rubber at the part fixed to the shaft.
  • the whole of the slide device on which the small sprockets are attached is rotated to form one deformable polygonal sprocket, and the polygonal sprocket is connected to two parallel shafts of an input shaft and an output shaft of the transmission, respectively.
  • the small sprocket attached to the polygonal sprocket is thrown in such a way that the rotatable direction is reversed and linked with the chain wheel
  • the apparent pitch circumference of each polygon sprocket is changed by enlarging and reducing the shapes of the polygon sprockets attached to the input and output shafts of the transmission to each other in a similar manner.
  • the transmission has an apparent pitch circumference ratio as a transmission ratio.
  • Fig. 1 shows an example of a basic transmission according to the present invention.
  • Figure 2 shows an example of gear pox when multiple polygonal sprockets are mounted on a shaft
  • Fig. 3 is a schematic diagram of a transmission with a reverse rotation direction transmission mechanism combined on the back side to achieve the same gear ratio for forward rotation and reverse rotation.
  • Fig. 4 shows two sets of transmissions of the present invention mounted on an input / output shaft via a one-way clutch or a ratchet with the transmission direction reversed, and different speed ratios can be selected for forward rotation and reverse rotation.
  • Fig. 5 shows the sprocket teeth aligned with the center of rotation.
  • the slide frame has a double structure and the sprocket has an elastic support structure, and has a function of adjusting the engagement with the chain.
  • the moving part of the sliding device which combines screws and gears and can move the mounted object radially on concentric circles, is rotated via a one-way clutch or ratchet.
  • a small sprocket with the same possible directions is installed, and the whole is rotated to form one deformable polygonal sprocket.
  • This deformable polygonal sprocket is mounted on two parallel shafts that are the input shaft and the output shaft of the transmission so that the rotatable directions of the mounted small sprockets are opposite to each other.
  • Link with chain wheels are used to drive.
  • the apparent pitch circumference of each polygonal sprocket is changed by expanding and reducing the shape of each polygonal sprocket attached to the input / output shaft in a similar manner.
  • the transmission has a long ratio as a transmission ratio.
  • the transmission of the present invention continuously changes the apparent pitch circumference of the special sprocket composed of a plurality of small sprockets having a fixed shape, the chain length between the small sprockets is always changed. Is not always an integral multiple of the chain pitch.
  • the maximum misalignment of the teeth of the chain and the sprocket is when the mouth of the link of the chain rides on the teeth of the sprocket. From this state, the sprocket teeth move forward or backward. If you do, you will be in agreement. It seems that there is not much problem in practical use with a transmission such as a bicycle where the rotation speed of the chain is not very high. Is required to eliminate this. If the tune and small sprocket need to fit exactly, the teeth of the small sprocket need to be forced into engagement with the chain.
  • the small sprockets constituting the special sprocket rotate only in one direction. Therefore, if the chain rides on the teeth of the small sprocket, and if the small sprocket rotates in the direction in which it can rotate, the chain will Is suitable by pushing the teeth of the small sprocket in the direction of rotation to accelerate the rotation, but if the small sprocket does not rotate in the direction that cannot be rotated, it is necessary to devise a device.
  • the structure of the small sprocket is divided into two parts, and the part fixed to the shaft and the teeth that mesh with the chain are used. And combine them with the center of the teeth and the part fixed to the shaft.
  • the method of attaching the toothed part to the part fixed to the shaft should be such that the tooth can be rotated with a minimum angle required to fit the chain with respect to the part fixed to the shaft. Attach the part.
  • the tooth portion and the portion fixed to the shaft are elastically supported so that they do not shift in a normal mating state, but when the chain rides on the tooth portion, the distance from the shaft center to the contact point of the chain Since the (radius) is larger than in the normal mating condition, the rotation of the small sprocket requires more rotational torque than in the normal mating condition, and the portion of the tooth elastically supported by the panel or rubber is required. The force is greater than in normal situations.
  • the transmission of the present invention uses a sliding frame concentrically.
  • a small sprocket to be mounted on the slide frame of the sliding device that can be moved arbitrarily in a radial direction.
  • a shaft that mounts the small sprocket on a rectangular slide frame 9 that can be moved and fixed with screws using a double slide frame structure.
  • a small sprocket with the structure (1) is mounted on the slide frame with the structure (2). It is of course possible and effective.
  • the rotatable directions are opposite to each other in the radially moving part of the slide device so that the transmission direction of the chain wheel is reversed.
  • the gear ratio is the same in both forward and reverse rotation. (See Fig. 3).
  • the polygon sprocket of the output shaft will try to run idle in the chain wheel.
  • the motor rotates in the same direction, but the output shaft of the reverse-direction transmission, which does not transmit power, acts as the input shaft, forcibly over-rotating the original input shaft.
  • the power connected to the original input shaft resists and acts as a brake, so that overspeed of the output shaft can be suppressed.
  • two sets of polygon sprockets are attached to the input / output shaft via a one-way clutch or ratchet. Since the transmissions function independently in each transmission direction, the transmission can be shifted in either forward or reverse rotation direction, and any speed ratio can be selected separately for forward and reverse (see Fig. 4).
  • the transmission can be shifted in either forward or reverse rotation direction, and any speed ratio can be selected separately for forward and reverse (see Fig. 4).
  • a one-way clutch or a ratchet wheel when the polygon sprocket is not deformed, all the small sprockets are fixed simultaneously. Through the clutch to be able to hold It is also possible to mount it.
  • the polygonal sprocket is deformed and the one-way clutch or ratchet is activated.
  • the small sprocket is fixed by the action of the clutch, and the small sprocket is fixed and held until the next shifting operation occurs.
  • Fix the gear ratio With this function, the gear ratio can be freely changed and fixed, and power can be transmitted in the reverse direction in the fixed state.
  • Chain transmission is a low-cost transmission method that is highly reliable, has the effect of absorbing vibration and shock, and is not so affected by the working environment. Due to recent improvements in materials, high-strength chains that can withstand heavy loads have also emerged.
  • transport machines such as bicycles and automobiles, mixing machines, and blowers. It can be applied to speed control of any machine, and can provide a simple, lightweight and inexpensive continuously variable transmission. In particular, it can be expected to be used as a transmission for high-load machines that are disadvantageous for friction conduction, taking advantage of the feature of shifting gears while maintaining the same gear.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gears, Cams (AREA)
  • Transmissions By Endless Flexible Members (AREA)

Abstract

Small-sized sprockets having a function to adjust engagement with a chain is installed on a slide device through a one-way clutch or a ratchet wheel so as to be rotatable in the same direction. The device can randomly and coaxially move a thing installed on it, and the whole slide device is rotatable as one deformable polygonal sprocket. An input shaft and output shaft of a speed change apparatus are provided with the polygonal sprockets such that the rotatable directions of the small-sized sprockets installed on each of the polygonal sprockets are opposite to each other, and the polygonal sprockets are interlocked by a chain ring. When the shapes of the individual polygonal sprockets installed on the input shaft and output shaft of the speed change device are continuously and correlatively enlarged and reduced with a similar shapes, apparent pitch circle circumferential lengths of individual polygonal sprockets are continuously varied, and a ratio of the apparent pitch circle circumferential lengths is a speed change ratio of a stepless speed change apparatus.

Description

明 細 書  Specification
技術分野 Technical field
本発明は， 見掛けのピッチ円周長を変えることができる特殊な多角形スプロケットを 入力軸と出力軸に取付け、 チヱ一ン輸で連動させてそれぞれの特殊スプロケットの見掛 けのピッチ円周長を相互に変化させ， 見掛けのピッチ円周長比を変速比とするチェーン 伝動式の嚙合い型連続無段変速装置に関する。 背景技術  The present invention attaches a special polygon sprocket that can change the apparent pitch circumference to the input shaft and output shaft, and links them by chain transfer to make the apparent pitch circumference of each special sprocket. The present invention relates to a chain-driven, multi-stage, continuously variable transmission that uses the apparent pitch circumference ratio as the gear ratio. Background art
従来の連続無段変速装置としては入出力軸に取付けた回転するディスクを押付けるタ ィプゃ特殊な可変径ペルト車に金属ベルトを架けたタイプ等が実用化されている。 チェ —ンによる変速装置は複数のスプロケットの組合せにチェーン輪を架けかえる段階的な 方法が自転車の変速機で広く実用化されている。  As a conventional continuously variable transmission, a type in which a rotating disk mounted on an input / output shaft is pressed, such as a type in which a metal belt is hung on a special variable-diameter pelt wheel, has been put to practical use. In a chain transmission, a stepwise method of replacing a chain wheel with a combination of a plurality of sprockets is widely used in a bicycle transmission.
従来の摩擦力に頼る変速装置は伝達能力に限界があること， 摩擦力を発生する押付け 力が必要なこと， 外乱の影響を受けやすく製作コストが高いこと等で汎用の変速装置と は言い難く， 特殊な変速機として使用される場合が多い。 またチェーン伝動による変速 機としては、 例えば特開平 3— 2 1 9 1 5 6号公報に記載されるものや， 本出願人によ る特開 2 0 0 2 - 7 0 9 6 7号公報等がある。  Conventional transmissions that rely on frictional force are difficult to say as general-purpose transmissions because of their limited transmission capacity, the need for pressing force to generate frictional forces, and the high manufacturing costs due to the susceptibility to disturbances. , It is often used as a special transmission. Examples of the transmission by chain transmission include those described in Japanese Patent Application Laid-Open No. 3-219156 and Japanese Patent Application Laid-Open No. 2002-70967 by the present applicant. There is.
本発明は、 構造が簡単で軽量、 コンパク ト且つ製作費の安価な信頼性の高い連続無段 変速装置を提供することを目的とする。 発明の開示  SUMMARY OF THE INVENTION An object of the present invention is to provide a highly reliable continuous continuously variable transmission that has a simple structure, is lightweight, is compact, and is inexpensive to manufacture. Disclosure of the invention
取付けられたものを同心円上に放射状に任意に移動できるスライ ド装置に， ワン ウェイクラツチ又は爪車を介して回転可能な方向を統一して小型スプロケットを取 付ける。該小型スプロケットは，軸に固定される部分とチェーンと嚙み合う歯の部分 に分け，歯の部分と軸に固定される部分の回転中心を合わせて組み合わせ，歯の部分 が限られた量だけズレて回転することができるように，軸に固定される部分に歯の部 分を， パネもしくはゴムで回転方向を弾性支持する。 これにより， チヱ一ンと小型ス プロケッ卜が正確に嚙合わない時にスプロケッ卜の歯の部分だけが回転し，自動的に 嚙合いを修正する。 A slide device that can freely move the mounted object radially on a concentric circle. Install a small sprocket in a unified rotatable direction via a way clutch or ratchet wheel. The small sprocket is divided into a part fixed to the shaft and a tooth part that engages with the chain, and the combination of the tooth part and the rotation center of the part fixed to the shaft is combined. In order to be able to rotate by shifting, the tooth part is elastically supported in the rotation direction by a panel or rubber at the part fixed to the shaft. As a result, when the chain and the small sprocket do not match exactly, only the teeth of the sprocket rotate and the connection is corrected automatically.
該小型スプロケットが複数敢付けられたスライ ド装置全体を回転させ 1個の変形 可能な多角形スプロケットとし，該多角形スプロケットを変速装置の入力軸と出力軸 の 2本の平行な軸に，それぞれの多角形スプロケットに敢付けられた小型スプロケッ トの回転可能な方向が逆になるように放り付けてチェーン輪で連動させる  The whole of the slide device on which the small sprockets are attached is rotated to form one deformable polygonal sprocket, and the polygonal sprocket is connected to two parallel shafts of an input shaft and an output shaft of the transmission, respectively. The small sprocket attached to the polygonal sprocket is thrown in such a way that the rotatable direction is reversed and linked with the chain wheel
該変速装置の入出力軸に取付けられたそれぞれの多角形スプロケットの形状を相 互に， 相似形で拡大， 縮小することにより， それぞれの多角形スプロケッ 卜の見掛け のピッチ円周長を変化させ，見掛けのピッチ円周長比を変速比とする変速装置となる。 図面の簡単な説明  The apparent pitch circumference of each polygon sprocket is changed by enlarging and reducing the shapes of the polygon sprockets attached to the input and output shafts of the transmission to each other in a similar manner. The transmission has an apparent pitch circumference ratio as a transmission ratio. BRIEF DESCRIPTION OF THE FIGURES
図 1は本発明の基本的な変速装置の例  Fig. 1 shows an example of a basic transmission according to the present invention.
図 2は複数の多角形スプロケットを軸に取付けるときのギヤポックスの例  Figure 2 shows an example of gear pox when multiple polygonal sprockets are mounted on a shaft
図 3は裏面に逆回転方向の変速機構を組合せ、 正回転、 逆回転で同じ変速比となる形 式の変速装置の模式図  Fig. 3 is a schematic diagram of a transmission with a reverse rotation direction transmission mechanism combined on the back side to achieve the same gear ratio for forward rotation and reverse rotation.
図 4は 2組の本発明の変速装置を、 伝動方向を逆にしてワンウェイクラッチ又は爪車 を介して入出力軸に取付け、 正回転、 逆回転でそれぞれ別の変速比が選択可能な 形式の模式図  Fig. 4 shows two sets of transmissions of the present invention mounted on an input / output shaft via a one-way clutch or a ratchet with the transmission direction reversed, and different speed ratios can be selected for forward rotation and reverse rotation. Pattern diagram
図 5は回転中心を合わせ、 スプロケットの歯の部分と軸側に敢付ける部分に分け、 歯 の部分を軸に取り付ける部分に弾性体で支持し、 チェーンとの嚙合い調整機能を 持たせたスプロケットの例 Fig. 5 shows the sprocket teeth aligned with the center of rotation. Example of a sprocket with a part that is supported by an elastic body on the part that is attached to the shaft and has a function to adjust the connection with the chain
はスライ ドフレームを二重構造にしてスプロケットを弾性支持構造にしてチェ一 ンとの嚙合い調整機能を持たせた例  Is an example in which the slide frame has a double structure and the sprocket has an elastic support structure, and has a function of adjusting the engagement with the chain.
【符号の説明】 [Explanation of symbols]
小型スプロケット取付け軸  Small sprocket mounting shaft
小型スプロケット （の歯の部分）  Small sprocket (tooth part)
ギヤボックス  Gear box
ゴム (弹性支持材）  Rubber (Positive support material)
変形用動力  Deformation power
多角形スプロケット  Polygon sprocket
変形用動力供給装置  Deformation power supply
ォネジ棒  Male screw rod
スライドフレーム  Slide frame
見掛けのピッチ円 （多角形）  Apparent pitch circle (polygon)
回り止め  Detent
ワンウェイクラッチ  One-way clutch
チヱ一ン輪  Wheel
出力軸  Output shaft
入力軸  Input shaft
変形用駆動軸  Drive shaft for deformation
変形用駆動歯車  Drive gear for deformation
常時空回転可能な方向  Direction that allows constant idle rotation
組立兼ガイ ドボルト 2 0 組立兼リミットボルト Assembly and guide bolt 2 0 Assembly and limit bolt
2 1 コイルパネ (弾性支持材）  2 1 Coil panel (elastic support material)
2 2 スライ ドフレーム （可動外箱）  2 2 Slide frame (movable outer box)
2 3 ワンウェイクラッチの内輪  2 3 Inner ring of one-way clutch
2 4 ワンウェイクラッチの外輪 発明を実施するための最良の形態  2 4 Outer ring of one-way clutch Best mode for carrying out the invention
本発明をより詳細に説述するために、 添付の図面に従ってこれを説明する。  The present invention will be described in more detail with reference to the accompanying drawings.
第 1図に示す例のように， ネジと歯車を組み合わせた， 取付けられたものを同心円上に 放射状に移動させることができるスライ ド装置の移動する部分に， ワンウェイクラッチ 又は爪車を介して回転可能な方向を統一した小型スプロケットを取付け， 全体を回転さ せ 1個の変形可能な多角形スプロケットとする。 この変形可能な多角形スプロケットを 変速装置の入力軸と出力軸となる平行な 2本の軸に， 取付けられた小型スプロケッ卜の 回転可能な方向が互いに逆になるように多角形スプロケットを取り付け， チェーン輪で 連動させる。 As in the example shown in Fig. 1, the moving part of the sliding device, which combines screws and gears and can move the mounted object radially on concentric circles, is rotated via a one-way clutch or ratchet. A small sprocket with the same possible directions is installed, and the whole is rotated to form one deformable polygonal sprocket. This deformable polygonal sprocket is mounted on two parallel shafts that are the input shaft and the output shaft of the transmission so that the rotatable directions of the mounted small sprockets are opposite to each other. Link with chain wheels.
入出力軸に取付けられたそれぞれの多角形スプロケットの形状を相互に， 相似形で拡 大， 縮小することにより、 それぞれの多角形スプロケットの見掛けのピッチ円周長が変 化し， 見掛けのピッチ円周長比を変速比とする変速装置となる。  The apparent pitch circumference of each polygonal sprocket is changed by expanding and reducing the shape of each polygonal sprocket attached to the input / output shaft in a similar manner. The transmission has a long ratio as a transmission ratio.
本発明の変速装置は， 複数の固定形状の小型スプロケッ トで構成される特殊スプロケ ットの見掛けのピッチ円周長を連続的に変化させて変速するので， 常に小型スプロケッ ト間のチェーン長さがチェーンピッチの整数倍になるとは限らない。 チヱ一ンとスプロ ケッ卜の歯のズレはスプロケットの歯の上にチェ一ンのリンク部分の口一ラーが乗っか つた状態が最大で， この状態からスプロケッ卜の歯が前後どちらかに移動すれば嚙合う ことになる。 自転車などのチ ーンの回転速度があまり高速ではない変速装置では実用上はあまり 問題にならないようであるが， チェーンがスプロケットの歯に乗り上げた状態が解消せ ず変速動作に支障が出る場合にはこれを解消することが求められる。 チューンと小型ス プロケットが正確に嚙合うことが必要な場合には小型スプロケッ卜の歯を強制的にチェ —ンと嚙合せる必要がある。 Since the transmission of the present invention continuously changes the apparent pitch circumference of the special sprocket composed of a plurality of small sprockets having a fixed shape, the chain length between the small sprockets is always changed. Is not always an integral multiple of the chain pitch. The maximum misalignment of the teeth of the chain and the sprocket is when the mouth of the link of the chain rides on the teeth of the sprocket. From this state, the sprocket teeth move forward or backward. If you do, you will be in agreement. It seems that there is not much problem in practical use with a transmission such as a bicycle where the rotation speed of the chain is not very high. Is required to eliminate this. If the tune and small sprocket need to fit exactly, the teeth of the small sprocket need to be forced into engagement with the chain.
本発明の場合， 特殊スプロケットを構成する小型スプロケットは一方向にしか回転し ないので， チェーンが小型スプロケットの歯に乗り上げた場合， 小型スプロケットが回 転できる方向に回転して嚙合う場合にはチェーンは小型スプロケットの歯を回転方向に 押して回転を加速させて勝手に嚙合うが， 小型スプロケットが回転できない方向に回転 しないと嚙合わなレ、場合には工夫が必要になる。  In the case of the present invention, the small sprockets constituting the special sprocket rotate only in one direction. Therefore, if the chain rides on the teeth of the small sprocket, and if the small sprocket rotates in the direction in which it can rotate, the chain will Is suitable by pushing the teeth of the small sprocket in the direction of rotation to accelerate the rotation, but if the small sprocket does not rotate in the direction that cannot be rotated, it is necessary to devise a device.
本発明では， 次に述べるように， （1 )小型スプロケットの歯だけを嚙合う方向に回転 させて嚙合わせる方法と， （2 )特殊スプロケッ卜の見掛けのピッチ円周長を形作る小型 スプロケッ卜の配置半径を少し変えて嚙合わせる方法とにより上記問題を解決した。  In the present invention, as described below, (1) a method in which only the teeth of the small sprocket are rotated in the matching direction to align them, and (2) a small sprocket which forms the apparent pitch circumference of the special sprocket. The above problem was solved by a method in which the arrangement radius was slightly changed and combined.
( 1 ) の小型スプロケッ卜の歯だけを嚙合う方向に回転させて嚙合わせる方法として は， 小型スプロケッ トの構造を 2つに分け， 軸に固定される部分とチェ一ンと嚙み合う 歯の部分に分け， 歯の部分と軸に固定される部分の中心を合わせて組み合わせる。 軸に 固定される部分に敢付ける歯の部分の取付け方法は， チ ーンと嚙合うために必要な最 小角度だけ， 軸に固定される部分に対して， ズレて回転できるように歯の部分を取付け る。  As a method of rotating and aligning only the teeth of the small sprocket of (1) in the matching direction, the structure of the small sprocket is divided into two parts, and the part fixed to the shaft and the teeth that mesh with the chain are used. And combine them with the center of the teeth and the part fixed to the shaft. The method of attaching the toothed part to the part fixed to the shaft should be such that the tooth can be rotated with a minimum angle required to fit the chain with respect to the part fixed to the shaft. Attach the part.
チェーンが最も嚙合わない状態は， スプロケッ卜の歯の頂上にチェーンのリンク部分 が乗ったときであるから， 歯の部分の必要最小限の回転量は， チェーンの半ピッチ分で ある。 また， 衝撃のない連続的な運転になるように， 回転方向の支持はチェーンと歯の 無駄な遊ぴを無くすため， 歯の部分と軸に固定される部分がズレないで一致するように 常に力を加えるために， 歯の部分を， 軸に固定される部分に， パネもしくはゴムで強め に弾性支持する構造とする。 （第 5図参照)。 The condition where the chain does not fit best is when the link portion of the chain rides on the top of the sprocket teeth. Therefore, the minimum necessary amount of rotation of the tooth portion is the half pitch of the chain. In addition, in order to achieve continuous operation without impact, the support in the rotating direction eliminates useless play between the chain and the teeth, so that the teeth and the part fixed to the shaft always coincide with each other without displacement. To apply force, strengthen the teeth with a panel or rubber on the part fixed to the shaft. The structure shall be elastically supported. (See Figure 5).
これにより， 正常な嚙合い状態では歯の部分と軸に固定される部分はズレないように 弾性で支持されるが， 歯の部分にチェーンが乗り上げると， 軸芯からチェーンの接触点 までの距離 (半径)が正常な嚙合い時よりも大きくなるので， 小型スプロケッ卜の回転に は正常な嚙合い状態の時以上に回転トルクが必要になり， パネもしくはゴムで弾性支持 されている歯の部分に正常な嚙合い時よりも大きな力がかかる。  As a result, the tooth portion and the portion fixed to the shaft are elastically supported so that they do not shift in a normal mating state, but when the chain rides on the tooth portion, the distance from the shaft center to the contact point of the chain Since the (radius) is larger than in the normal mating condition, the rotation of the small sprocket requires more rotational torque than in the normal mating condition, and the portion of the tooth elastically supported by the panel or rubber is required. The force is greater than in normal situations.
このため， ワンウェイクラッチ又は爪車の働きで， 通常は回転できない方向に歯の部 分だけがズレて回転するので， チェーンは小型スプロケットの歯の部分と嚙合い， 嚙合 つた状態で歯の部分の逆回転はストッパーに当り止まる。 その後小型スプロケットは正 常な回転トルクになり， 歯の部分はパネもしくはゴムの圧縮された弾性で復元され， 元 の位置に戻る。  Because of this, only the teeth are displaced and rotated in the direction that cannot be normally rotated by the action of the one-way clutch or ratchet, and the chain mates with the teeth of the small sprocket. Reverse rotation hits the stopper and stops. After that, the small sprocket returns to normal rotational torque, and the teeth are restored to the original position by the compressed elasticity of the panel or rubber.
( 2 ) の特殊スプロケッ卜の見掛けのピッチ円周長を形作る小型スプロケッ卜の配置 半径を少しだけ変化させて嚙合わせる方法としては， 本発明の変速装置で， スライ ドフ レ一ムを同心円上に放射状に任意に移動させるスライ ド装置のスライドフレームに取り 付ける小型スプロケットを， スライ ドフレームを二重構造にしてネジで移動， 固定され る矩形のスライ ドフレーム 9の上に， 小型スプロケットを取付ける軸がついた底の開い た箱状のフレーム 2 2を被せ， 特殊スプロケッ卜の中心に向かって半径方向にスライ ド して若干縮むようにパネ 2 1もしくはゴムで弾性支持する （第 6図参照）。  (2) The arrangement of the small sprocket that forms the apparent pitch circumference of the special sprocket is adjusted slightly by changing the radius. The transmission of the present invention uses a sliding frame concentrically. A small sprocket to be mounted on the slide frame of the sliding device that can be moved arbitrarily in a radial direction. A shaft that mounts the small sprocket on a rectangular slide frame 9 that can be moved and fixed with screws using a double slide frame structure. Cover the box-shaped frame 22 with an open bottom and slide it in the radial direction toward the center of the special sprocket, and elastically support it with a panel 21 or rubber so that it shrinks slightly (see Fig. 6).
チェーンが小型スプロケットの歯に乗り上げた時には， 正常な嚙合い状態よりもチェ —ンの支持間隔が一瞬長くなり張力がかかるので， 小型スプロケットはパネもしくはゴ ムが一瞬圧縮されてチェーンの支持間隔が短くなり， 小型スプロケットの歯の上に乗り 上がったチェーンのリンク部分は山形の歯のどちらかに移動して嚙合い状態が改善され る。  When the chain rides on the teeth of the small sprocket, the supporting interval of the chain becomes momentarily longer and tension is applied as compared to the normal mating condition. Therefore, the small sprocket is compressed momentarily by the panel or rubber, and the supporting interval of the chain becomes shorter. The link portion of the chain, which has become shorter and climbed over the teeth of the small sprocket, moves to one of the chevron teeth to improve the mating condition.
また， （2 ) の構造のスライ ドフレームに， （1 ) の構造の小型スプロケットを取付け ることも当然可能であり， 有効である。 In addition, a small sprocket with the structure (1) is mounted on the slide frame with the structure (2). It is of course possible and effective.
チェーンの伝達能力が不足した場合， 入出力軸に複数の変形可能な多角形スプロケッ トを取付け， 複数のチヱ一ン輪を架けて伝達容量を増加させる。 また， より円滑な伝動 が必要な場合， 複数の多角形スプロケットを， 取付け位置を均等にずらしながら， 多角 形の見掛けの角数を多くして円形に近づけ， 複数のチェーン輪を架けて伝動することに より， より円滑な伝動が可能となる。  If the transmission capacity of the chain is insufficient, attach a plurality of deformable polygonal sprockets to the input and output shafts, and extend the transmission capacity with multiple chain wheels. When smoother transmission is required, multiple polygonal sprockets can be installed by shifting the mounting positions evenly, increasing the apparent number of polygons, making them closer to a circular shape, and transmitting through multiple chain wheels. As a result, smoother transmission is possible.
本発明の変速装置の入出力軸に取付けるそれぞれの多角形スプロケットで， スライ ド 装置の放射状に移動する部分に， チェーン輪の伝動方向が逆になるように， 回転可能な 方向が互いに逆の 2個の小型スプロケットを， 各面の回転可能な方向を統一して， 1つ の多角形スプロケットの裏面と表面に取り付け， 2本のチェーン輪を架けると， 正回転 でも逆回転でも変速比が同じになる （第 3図参照)。  In each of the polygonal sprockets attached to the input and output shafts of the transmission of the present invention, the rotatable directions are opposite to each other in the radially moving part of the slide device so that the transmission direction of the chain wheel is reversed. When two small sprockets are mounted on the back and front of one polygonal sprocket with the same rotatable direction on each side, and two chain wheels are hung, the gear ratio is the same in both forward and reverse rotation. (See Fig. 3).
負荷により出力軸が過回転してチェーン輪の回転速度よりも出力軸の多角形スプロケ ッ卜の回転速度が速くなると， 出力軸の多角形スプロケットはチェーン輪の中で空回り しょうとするが， 通常の伝動状態のときには同方向に回転するが， 動力を伝達しない反 対侧にある逆回転方向用の伝動装置の出力軸が入力軸の役目をし， 本来の入力軸を強制 的に過回転させようとする。 この時， 本来の入力軸に連結された動力が抵抗しブレーキ の役目をするので， 出力軸の過回転を抑制することができる。  If the output shaft over-rotates due to the load and the rotation speed of the polygon sprocket of the output shaft becomes faster than the rotation speed of the chain wheel, the polygon sprocket of the output shaft will try to run idle in the chain wheel. In the power transmission state, the motor rotates in the same direction, but the output shaft of the reverse-direction transmission, which does not transmit power, acts as the input shaft, forcibly over-rotating the original input shaft. To try. At this time, the power connected to the original input shaft resists and acts as a brake, so that overspeed of the output shaft can be suppressed.
また，本発明の変速装置 2組をチ ーン輪の伝動方向を逆にして背中合わせに組合せ， ワンウェイクラツチ又は爪車を介してそれぞれの多角形スプロケットを入出力軸に敢り 付けると， 2組の変速装置がそれぞれの伝動方向で独立して機能するので， 正逆どちら の回転方向でも変速でき且つ正逆別々に任意の変速比が選択可能となる （第 4図参照）。 この他， 本発明の変速装置の多角形スプロケットに取付ける小型スプロケットを， ヮ ンウェイクラッチ又は爪車を介して取付けることとは別に， 多角形スプロケットが変形 していない時に， 小型スプロケットを全数同時に固定保持できるようにクラッチを介し て取付けることも可能である。 多角形スプロケットが変形していて変速中はワンウェイ クラッチ又は爪車が働き， 変速を停止した時にクラッチの働きで小型スプロケットは固 定され， 次の変速動作がおきるまで小型スプロケットを固定， 保持し続け変速比を固定 する。 この機能により変速比を自由に変更， 固定でき且つ固定状態で逆転方向にも動力 を伝達できる。 When two sets of transmissions of the present invention are combined back to back with the chain wheel transmission direction reversed, two sets of polygon sprockets are attached to the input / output shaft via a one-way clutch or ratchet. Since the transmissions function independently in each transmission direction, the transmission can be shifted in either forward or reverse rotation direction, and any speed ratio can be selected separately for forward and reverse (see Fig. 4). In addition, apart from attaching the small sprocket to the polygon sprocket of the transmission of the present invention via a one-way clutch or a ratchet wheel, when the polygon sprocket is not deformed, all the small sprockets are fixed simultaneously. Through the clutch to be able to hold It is also possible to mount it. During shifting, the polygonal sprocket is deformed and the one-way clutch or ratchet is activated. When shifting is stopped, the small sprocket is fixed by the action of the clutch, and the small sprocket is fixed and held until the next shifting operation occurs. Fix the gear ratio. With this function, the gear ratio can be freely changed and fixed, and power can be transmitted in the reverse direction in the fixed state.
産業上の利用可能性  Industrial applicability
チェーン伝動は信頼性が高く振動， 衝撃を吸収する効果もあり作業環境にもあまり影 響されない廉価な伝動方法である。 近年の材質向上により髙負荷にも耐えられる高強度 のチェーンも出現しており， 本発明が実用化された場合， 自転車や自動車等の運搬機械 や混合機械、 送風機等の回転速度の制御など、 あらゆる機械の速度制御に適用でき、 機 構が簡単， 軽量で廉価な無段変速機が提供できる。 特に嚙合ったまま変速する特徴を生 かし、 摩擦伝導には不利な高負荷機械の変速装置としての利用が期待できる。  Chain transmission is a low-cost transmission method that is highly reliable, has the effect of absorbing vibration and shock, and is not so affected by the working environment. Due to recent improvements in materials, high-strength chains that can withstand heavy loads have also emerged. When the present invention was put into practical use, it was necessary to control the rotation speed of transport machines such as bicycles and automobiles, mixing machines, and blowers. It can be applied to speed control of any machine, and can provide a simple, lightweight and inexpensive continuously variable transmission. In particular, it can be expected to be used as a transmission for high-load machines that are disadvantageous for friction conduction, taking advantage of the feature of shifting gears while maintaining the same gear.

Claims

請求の範囲 The scope of the claims
取付けられたものを同心円上に放射状に任意に移動できるスライ ド装置に， ワンゥ ェイタ  A slide device that can freely move the mounted object radially on a concentric circle
ラッチ又は爪車を介して回転可能な方向を統一して小型スプロケットを取付け，スラ ィ ド装置全体を回転させ 1個の変形可能な多角形スプロケットとし， A small sprocket is mounted by unifying the direction of rotation via a latch or ratchet, and the entire slide device is rotated to form one deformable polygonal sprocket.
該多角形スプロケットを変速装置の入力軸と出力軸の 2本の平行な軸に， それぞれ の小型スプロケットの回転可能な方向が逆になるように取り付けてチェーン輪で連 動させるようにし，  The polygonal sprocket is mounted on two parallel shafts of an input shaft and an output shaft of the transmission so that the directions in which the small sprockets can rotate are reversed, and the sprockets are linked by a chain wheel.
入出力軸に取付けられたそれぞれの多角形スプロケットの形状を相互に， 相似形で 拡大，縮小することによりそれぞれの多角形スプロケッ卜の見掛けのピッチ円周長を 変化させ， 見掛けのピッチ円周長比を変速比とする変速装置において，  The apparent pitch circumference of each polygon sprocket is changed by enlarging and reducing the shape of each polygon sprocket attached to the input / output shaft in a similar manner. In a transmission with a gear ratio,
前記小型スプロケッ卜を， 軸に固定される部分とチェーンと嚙み合う歯の部分に分 け，歯の部分と軸に固定される部分の回転中心を合わせて組み合わせ， ワンウェイク ラツチ又は爪車に対し，歯の部分が限られた量だけズレて回転することができるよう に軸に固定される部分に歯の部分を，パネもしくはゴムで回転方向を弾性支持するこ とにより，チェーンとスプロケッ卜が正確に嚙合わない時にスプロケッ卜の歯の部分 だけが回転し，自動的に嚙合いを修正するスプロケットとしたことを特徴とする変速 取付けられたものを同心円上に放射状に任意に移動できるスライ ド装置に， ワンゥ エイクラッチ又は爪車を介して回転可能な方向を統一して小型スプロケットを取付 け， スライ ド装置全体を回転させ 1個の変形可能な多角形スプロケットとし， 該多角形スプロケットを変速装置の入力軸と出力軸の 2本の平行な軸に， それぞれ の小型スプロケットの回転可能な方向が逆になるように取り付けてチ; 1ーン輪で連 動させるようにし， 入出力軸に敢付けられたそれぞれの多角形スプロケットの形状を相互に， 相似形で 拡大， 縮小することによりそれぞれの多角形スプロケットの見掛けのピッチ円周長 を変化させ， 見掛けのピッチ円周長比を変速比とする変速装置において， The small sprocket is divided into a part fixed to the shaft and a part of the tooth that engages with the chain, and the combination of the center of rotation of the part of the tooth and the part fixed to the shaft is combined to form a one-way clutch or ratchet wheel. On the other hand, the chain and sprockets are supported by elastically supporting the teeth in the direction of rotation with a panel or rubber so that the teeth can be rotated with a limited amount of rotation. When the gears do not match exactly, only the teeth of the sprocket rotate and the sprocket automatically corrects the gears. Attach a small sprocket to the slide unit in a unified direction through a one-way clutch or a ratchet, and rotate the entire slide unit to make one deformable polygon sprocket. The polygonal sprocket is mounted on two parallel axes of the input shaft and the output shaft of the transmission so that the rotation directions of the small sprockets are opposite to each other. To move, The apparent pitch circumference of each polygon sprocket is changed by enlarging and reducing the shape of each polygon sprocket attached to the input / output shaft in a similar manner. In a transmission with a gear ratio,
前記スライド装置の裏面と表面に， 裏面と表面でチェーン輪の伝動方向が逆になる ように小型スプロケットを敢り付け， 正転でも逆回転でも変速比が同じになり且つ 負荷で出力軸が過回転した時に入力動力が過回転抑制の負荷となることを特徴とす る変速装置。 A small sprocket is attached to the back and front surfaces of the slide device so that the transmission direction of the chain wheel is reversed between the back and front surfaces, so that the gear ratio is the same in both forward and reverse rotation, and the output shaft is overloaded by the load. A transmission characterized in that the input power acts as a load for suppressing excessive rotation when rotated.
取付けられたものを同心円上に放射状に任意に移動できるスライ ド装置に， ワンゥェ イクラツチ又は爪車を介して回転可能な方向を統一して小型スプロケットを取付け， スライド装置全体を回転させ 1個の変形可能な多角形スプロケットとし， A small sprocket is attached to a slide device that can freely move in a concentric manner radially on a concentric circle via a one-way clutch or ratchet, and the small sprocket is attached. Possible polygonal sprocket,
該多角形スプロケットを変速装置の入力軸と出力軸の 2本の平行な軸に， それぞれの 小型スプロケッ卜の回転可能な方向が逆になるように取り付けてチェーン輪で違動 させるようにし， The polygon sprocket is mounted on two parallel shafts of an input shaft and an output shaft of a transmission so that the directions in which the small sprockets can rotate are opposite to each other, and the sprockets are moved by a chain wheel.
入出力軸に取付けられたそれぞれの多角形スプロケットの形状を相互に， 相似形で拡 大， 縮小することによりそれぞれの多角形スプロケットの見掛けのピッチ円周長を変 化させ， 見掛けのピッチ円周長比を変速比とする変速装置において， The apparent pitch circumference of each polygonal sprocket is changed by expanding and reducing the shape of each polygonal sprocket attached to the input and output shafts in a similar manner. In a transmission with a long ratio as a gear ratio,
前記変速装置 2組を， チ ーン輪の伝動方向が逆になるように背中合わせに組合せ， ワンゥヱイクラツチ又は爪車を介してそれぞれの多角形スプロケットを入出力軸に 取り付け， 正逆どちらの回転方向でも変速でき且つ正転方向， 逆転方向それぞれ別々 に任意の変速比が選択可能なことを特徴とする変速装置。 Combine the two sets of transmissions back-to-back so that the transmission directions of the chain wheels are reversed. Attach the respective polygon sprockets to the input and output shafts via one-wheel clutches or ratchets. A transmission characterized in that the transmission can be shifted in the rotation direction, and that an arbitrary speed ratio can be selected separately for the forward rotation direction and the reverse rotation direction.
取付けられたものを同心円上に放射状に任意に移動できるスライ ド装置に， ワンゥ エイクラッチ又は爪車を介して回転可能な方向を統一して小型スプロケットを取付 け， スライド装置全体を回転させ 1個の変形可能な多角形スプロケットとし， 該多角形スプロケットを変速装置の入力軸と出力軸の 2本の平行な軸に， それぞれ の小型スプロケットの回転可能な方向が逆になるように取り付けてチヱ一ン輪で連 動させるようにし， A small sprocket is mounted on a slide device that can move the mounted device radially and concentrically in a radial manner through a one-way clutch or a ratchet, and a small sprocket is mounted. And a polygonal sprocket that can be deformed, and the polygonal sprocket is connected to two parallel axes of an input shaft and an output shaft of a transmission, respectively. The small sprocket is mounted in such a way that the rotatable direction is reversed, and it is operated by a wheel.
入出力軸に敢付けられたそれぞれの多角形スプロケッ卜の形状を相互に， 相似形で 拡大， 縮小することによりそれぞれの多角形スプロケッ卜の見掛けのピッチ円周長 を変化させ， 見掛けのピッチ円周長比を変速比とする変速装置において， 前記多角形スプロケッ卜に取付ける小型スプロケットを， ワンウェイクラッチ又は 爪車を介して取付けることとは別に， 多角形スプロケッ卜が変形していない時にク ラッチにより小型スプロケットを全数同時に固定保持できるように取付けたことを 特徴とする変速装置。 The apparent pitch circumference of each polygon sprocket is changed by enlarging and reducing the shape of each polygon sprocket attached to the input / output axis in a similar manner. In a transmission having a circumference ratio as a gear ratio, apart from attaching a small sprocket to be attached to the polygon sprocket via a one-way clutch or a ratchet, the small sprocket can be engaged by a clutch when the polygon sprocket is not deformed. A transmission, wherein all the small sprockets are mounted so that they can be fixedly held at the same time.
請求の範囲の 1に記載の変速装置であって， 1つの駆動装置で変形する複数の多角 形スプロケットを変速装置の入力軸と出力軸に取付け， 複数のチェーン輪で動力を 伝達することを特徴とする変速装置。 2. The transmission according to claim 1, wherein a plurality of polygon sprockets deformable by one drive unit are mounted on an input shaft and an output shaft of the transmission, and power is transmitted by a plurality of chain wheels. Transmission.
請求の範囲の 2乃至請求の範囲の 4のいずれか一項に記載の変速装置であって， 前 記小型スプロケットを，軸に固定される部分とチェーンと嚙み合う歯の部分に分け， 歯の部分と軸に固定される部分の回転中心を合わせて組み合わせ， ワンゥ-イクラ ツチに対し， 歯の部分が限られた量だけズレて回転することができるように軸に固 定される部分に歯の部分を， パネもしくはゴムで回転方向を弹性支持することによ り， チェーンとスプロケットが正確に嚙合わない時にスプロケッ卜の歯の部分だけ が回転し， 自動的に嚙合いを修正するスプロケットとすることを特徴とする変速装 置。 The transmission according to any one of claims 2 to 4, wherein the small sprocket is divided into a portion fixed to a shaft and a portion of a tooth meshing with a chain. The part fixed to the shaft is combined with the center of rotation of the part fixed to the shaft and the part that is fixed to the shaft so that the tooth part can rotate with a limited amount of displacement with respect to the 1 ゥ -crack. By supporting the teeth in the direction of rotation with a panel or rubber, the sprocket rotates automatically when the chain and sprocket do not match exactly, and the sprocket automatically corrects the sprocket. A transmission device characterized by the following.
請求の範囲の 1乃至請求の範囲の 6のいずれか一項に記載の変速装置であって， 前 記スライ ド装置のスライドフレームに， 半径方向に限られた量だけ縮むように， 小 型スプロケッ トをパネもしくはゴムで弾性支持し， チェーンとスプロケッ卜が正確 に嚙合わない時に小型スプロケッ卜の取付け部分が半径方向に縮み見掛けのピッチ 円周長を変化させ， 自動的に嚙合いを修正することを特徴とする変速装置。 The transmission according to any one of claims 1 to 6, further comprising: The sprocket is elastically supported with a panel or rubber. A transmission characterized by automatically changing the circumference by changing the circumference.
PCT/JP2003/009079 2002-10-31 2003-07-17 Stepless speed change apparatus WO2004040168A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003252657A AU2003252657A1 (en) 2002-10-31 2003-07-17 Stepless speed change apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002-317167 2002-10-31
JP2002317167A JP3435408B1 (en) 2002-10-31 2002-10-31 Continuously variable transmission

Publications (1)

Publication Number Publication Date
WO2004040168A1 true WO2004040168A1 (en) 2004-05-13

Family

ID=27751420

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2003/009079 WO2004040168A1 (en) 2002-10-31 2003-07-17 Stepless speed change apparatus

Country Status (3)

Country Link
JP (1) JP3435408B1 (en)
AU (1) AU2003252657A1 (en)
WO (1) WO2004040168A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007008165A1 (en) 2007-02-13 2008-08-14 Harald Von Hacht Gearing system for infinitely variable controlled speed increasing ratio and highest possible efficiency consistency has a primary drive shaft and a driven shaft
CN102494094A (en) * 2011-12-20 2012-06-13 湖南科技大学 Variable pitch radius based star chain transmission stepless speed change device
CN106286735A (en) * 2016-11-15 2017-01-04 黄华 Dish type buncher
WO2018018850A1 (en) * 2015-07-30 2018-02-01 郑云兵 Transmission
CN109114184A (en) * 2017-12-20 2019-01-01 谭波 A kind of stepless transmission
WO2019119531A1 (en) * 2017-12-20 2019-06-27 谭波 Chain-type stepless speed reducer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104343914B (en) * 2014-09-16 2017-09-26 谢瑞成 A kind of infinitely variable speed gearing of reducing gear relay transmission

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53147167A (en) * 1977-05-27 1978-12-21 Darujiyabuno Sutopansuko Obede Speed change gear
WO1991001228A1 (en) * 1989-07-19 1991-02-07 Gruber, Kaplan And Associates Variable drive transmission
JPH0666352A (en) * 1992-08-20 1994-03-08 Kaoru Saito Continuously variable transmission
JPH08326785A (en) * 1995-05-26 1996-12-10 Nippondenso Co Ltd One-way clutch for starter
JP2002070967A (en) * 2000-08-29 2002-03-08 Wandaa Kikaku:Kk Continuously variable transmission

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53147167A (en) * 1977-05-27 1978-12-21 Darujiyabuno Sutopansuko Obede Speed change gear
WO1991001228A1 (en) * 1989-07-19 1991-02-07 Gruber, Kaplan And Associates Variable drive transmission
JPH0666352A (en) * 1992-08-20 1994-03-08 Kaoru Saito Continuously variable transmission
JPH08326785A (en) * 1995-05-26 1996-12-10 Nippondenso Co Ltd One-way clutch for starter
JP2002070967A (en) * 2000-08-29 2002-03-08 Wandaa Kikaku:Kk Continuously variable transmission

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007008165A1 (en) 2007-02-13 2008-08-14 Harald Von Hacht Gearing system for infinitely variable controlled speed increasing ratio and highest possible efficiency consistency has a primary drive shaft and a driven shaft
CN102494094A (en) * 2011-12-20 2012-06-13 湖南科技大学 Variable pitch radius based star chain transmission stepless speed change device
WO2018018850A1 (en) * 2015-07-30 2018-02-01 郑云兵 Transmission
CN106286735A (en) * 2016-11-15 2017-01-04 黄华 Dish type buncher
CN109114184A (en) * 2017-12-20 2019-01-01 谭波 A kind of stepless transmission
WO2019119531A1 (en) * 2017-12-20 2019-06-27 谭波 Chain-type stepless speed reducer
CN109114184B (en) * 2017-12-20 2020-06-02 北京博华圣源科技发展有限公司 Stepless speed variator
US20200340555A1 (en) * 2017-12-20 2020-10-29 Bo Tan Chain type stepless transmission
EP3730813A4 (en) * 2017-12-20 2021-09-15 Bo Tan Chain-type stepless speed reducer
US11566689B2 (en) 2017-12-20 2023-01-31 Bo Tan Chain type stepless transmission

Also Published As

Publication number Publication date
JP3435408B1 (en) 2003-08-11
AU2003252657A1 (en) 2004-05-25
JP2004150550A (en) 2004-05-27

Similar Documents

Publication Publication Date Title
US7766780B2 (en) Continuously variable transmission
JPH02504301A (en) Continuously variable transmission
CA2677552C (en) Continuously variable transmission
US6044718A (en) Continuously variable transmission utilizing oscillating torque and one way drives
US5632702A (en) Continuously variable transmission
KR101422135B1 (en) Automatic transmission
WO2004040168A1 (en) Stepless speed change apparatus
JPH08508085A (en) Variable gear ratio drive mechanism
US20070238568A1 (en) Cam-based infinitely variable transmission
KR20110117757A (en) Hub type continuous various transmission and drive wheel having the same
CN218258573U (en) Front speed variator of bicycle
US6960151B2 (en) Toroidal continuously variable transmission
JPH08121566A (en) Continuously variable transmission
JP2003240078A (en) Continuously variable transmission
JPH0735152Y2 (en) Gearbox
CN218817987U (en) Bidirectional transmission device
EP2205892B1 (en) Transmission
JP2012219869A (en) Power transmission device
JPH01229136A (en) Continuously variable transmission
JPH09303520A (en) Gear type continuously variable transmission
TW201408906A (en) Gear transmission mechanism of transaxle
JPH05238468A (en) Speed change gear for bicycle
JPH10141469A (en) Continuously variable transmission by means of worm gear
JPH0323781B2 (en)

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SC SD SE SG SK SL TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase