JPH03168451A - Belt type continuously variable transmission - Google Patents

Belt type continuously variable transmission

Info

Publication number
JPH03168451A
JPH03168451A JP30313689A JP30313689A JPH03168451A JP H03168451 A JPH03168451 A JP H03168451A JP 30313689 A JP30313689 A JP 30313689A JP 30313689 A JP30313689 A JP 30313689A JP H03168451 A JPH03168451 A JP H03168451A
Authority
JP
Japan
Prior art keywords
movable flange
flange
pulley
spline
pulley shaft
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.)
Pending
Application number
JP30313689A
Other languages
Japanese (ja)
Inventor
Masao Teraoka
正夫 寺岡
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.)
GKN Driveline Japan Ltd
Original Assignee
Tochigi Fuji Sangyo 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 Tochigi Fuji Sangyo KK filed Critical Tochigi Fuji Sangyo KK
Priority to JP30313689A priority Critical patent/JPH03168451A/en
Publication of JPH03168451A publication Critical patent/JPH03168451A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To decrease operating force of an adjusting device without applying shearing force to a belt with crack generation suppressed in a coned disk spring at a low cost by utilizing the slit of the coned disk spring for connection of a movable flange to a pulley shaft through the coned disk spring. CONSTITUTION:Since a conned disk spring 7 is engaged with a movable flange 5 and a pulley shaft 3 respectively by a slit 9 and a finger 11, no spline work for engagement is required. Accordingly, a conventional product can be used as it is at a low cost, and generation of a crack from a spline is prevented because of no spline connection. Further more, connection torque to the pulley shaft 3 on the side of the finger 11 is moderated by the length of the finger 11 so that no crack may be generated in a slit part 9. Thus by connecting the movable flange 5 to the pulley shaft 3 by the coned disk spring 7 with no spline part, sliding resistance is not generated even when torque is applied, and operating force is decreased by smoothing a movement of the movable flange 5 at the time of adjusting a space.

Description

【発明の詳細な説明】 [発明の目的] (産業上の利用分野) この発明は、ベルト式無段変速機に関する。[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a belt type continuously variable transmission.

(従来の技術) 特開昭53−107554号公報に“可変ブーリトラン
スミッション”が記載されている。これはベルト式無段
変速機であって、固定フランジと可動フランジを有する
駆動側と従動側の各変速ブーりと、各プーリを連結する
Vベルトと、駆動側の変速プーリのフランジ間隔を調整
する調整装置とを備え、この間隔調整により各変速プー
リのベルトのピッチ径を相対変化させて無段変速を行つ
〇 (発明が解決しようとする課題) 各変速ブーリの可動フランジは間隔調整ノノと、滑り防
止のためにベルトにある程度の摩擦力とを与えるために
皿バネにより固定フランジ側に付5}されている。この
皿バネは径方向内側に配列されたフィンガをブーり軸に
係合し、外縁側にビス止めした補助板に設けられた凹部
を可動フランジ側の凸部に係合して可動フランジとプー
リ軸とを相対回転不能に連結している。これはベルト張
ノノにより可動フランジが固定フランジと柑対回転しベ
ルトに剪断力か掛かるのを防止するためである。
(Prior Art) A "variable booley transmission" is described in Japanese Patent Application Laid-Open No. 53-107554. This is a belt-type continuously variable transmission, which has fixed flanges and movable flanges on the drive side and driven side, a V-belt that connects each pulley, and a flange interval of the drive side variable pulley that can be adjusted. The movable flange of each speed change pulley is equipped with an adjustment device for adjusting the distance, and by adjusting the distance, the pitch diameter of the belt of each speed change pulley is relatively changed to perform stepless speed change. (Problem to be solved by the invention) It is attached to the fixed flange side by a disk spring to provide a certain amount of frictional force to the belt to prevent slippage. This disk spring has fingers arranged on the inside in the radial direction that engage with the bobbin shaft, and a concave part provided in an auxiliary plate fixed with screws on the outer edge side that engages with a convex part on the movable flange side, thereby connecting the movable flange and pulley. It is connected to the shaft so that it cannot rotate relative to the shaft. This is to prevent the movable flange from rotating relative to the fixed flange due to belt tensioning, thereby preventing shearing force from being applied to the belt.

しかし、この構或では補助板やビスなどの部品及びビス
穴の加工などが必要でありコスト高になる。又、補助阪
に設けた凹部にトルクが掛りクラックが入り易い。
However, this structure requires parts such as auxiliary plates and screws, and machining of screw holes, resulting in high costs. In addition, cracks are likely to occur due to torque being applied to the recesses provided in the auxiliary plate.

第2図の例では、皿バネ101は同図(b)のように外
縁部に加工されたスプライン103により可動フランジ
105に係合しフィンガ105によりプーリ軸107に
係合している。ブーり軸107には止め輪109が装着
され、皿バネ101は可動フランジ105を固定フラン
ジ111側に付勢している。
In the example shown in FIG. 2, the disc spring 101 engages with a movable flange 105 through a spline 103 machined on its outer edge, and engages with a pulley shaft 107 through a finger 105, as shown in FIG. 2(b). A retaining ring 109 is attached to the bobbin shaft 107, and the disk spring 101 biases the movable flange 105 toward the fixed flange 111.

この構成では前記従来例のような補助板とビスは不要で
あるが、外縁のスプライン103の加工が必要であり、
皿バネ101のスプライン103に入り易いクラックの
問題は解決されていない。
This configuration does not require the auxiliary plate and screws as in the conventional example, but requires machining of the spline 103 on the outer edge.
The problem of cracks easily entering the splines 103 of the disc spring 101 has not been solved.

第3図の例ては、プーリ軸115には止め輪117で軸
方向に固定されたりテーナ11つがスプライン嵌合し、
可動フランジ121はリテーナ119との間に装着され
たコイルバネ123によりブーり軸115に連結され付
勢されている。
In the example shown in FIG. 3, the pulley shaft 115 is fixed in the axial direction with a retaining ring 117, and 11 retainers are spline-fitted to the pulley shaft 115.
The movable flange 121 is connected to the bobbin shaft 115 and biased by a coil spring 123 mounted between the movable flange 121 and the retainer 119.

この構成ではベルトから受けるトルクによりコイルバネ
123か撓み、可動フランジ121が回転してベルトに
剪断力が掛る。
In this configuration, the coil spring 123 is bent by the torque received from the belt, and the movable flange 121 is rotated, thereby applying a shearing force to the belt.

第4図の例では、可動フランジ125はスプライン部1
27によりブーり軸129に軸方向移動自在に連結され
、皿バネ131はプーリ軸129に止め輪133で保持
されたりテーナ135と可動フランジ125との間に装
着され、可動フランジ125を固定フランジ137側に
付勢する。
In the example of FIG. 4, the movable flange 125 is connected to the spline portion 1
The disc spring 131 is connected to the pulley shaft 129 with a retaining ring 133 or installed between the retainer 135 and the movable flange 125, and the movable flange 125 is connected to the fixed flange 137 by a retainer 135. bias to the side.

この構成では、ベルトからのトルクがスプライン部12
7に掛かるからその摺動抵抗により可動フランジ125
の動きが重く、正常な間隔調整を行いに<<、調整のた
めに大きな操作力が必要である。
In this configuration, the torque from the belt is transferred to the spline portion 12.
7, the sliding resistance causes the movable flange 125
The movement is heavy, and a large amount of operating force is required to adjust the distance normally.

そこで、この発明は、従来の皿バネに手を加えずにその
まま使用できるベルト式無段変速機の提供を目的とする
SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a belt-type continuously variable transmission that can be used as is without modifying conventional disc springs.

[発明の構戊] (課題を解決するための手段) この発明のベルト式無段変速機は、プーリ軸に固定され
た固定フランジと、この軸上に相対回転及び軸方向移動
自在に配置され固定フランジとの間にベルト溝を形成す
る可動フランジと、スリットとフィンガとを周方向交互
に有しスリットを可動フランジの凸部に係合しフィンガ
をプーリ軸に係合して可動フランジとプーリ軸とを相対
回転不能に連結し可動フランジを固定フランジ側に付勢
する皿バネとを備えた変速ブーりを用いたことを特徴と
する。
[Structure of the Invention] (Means for Solving the Problems) The belt type continuously variable transmission of the present invention includes a fixed flange fixed to a pulley shaft, and a fixed flange arranged on the shaft so as to be movable in relative rotation and axial direction. A movable flange forms a belt groove between the movable flange and the fixed flange, and has slits and fingers alternately in the circumferential direction. The present invention is characterized in that it uses a speed change booth that is connected to the shaft in a relatively non-rotatable manner and includes a disc spring that biases the movable flange toward the fixed flange.

(作用) 可動フランジは皿バネによりプーリ紬に回転方向に連結
されており、ベルトからのトルクによる固定フランジと
の相対回転が防止される。
(Function) The movable flange is rotationally connected to the pulley pongee by a disc spring, and is prevented from rotating relative to the fixed flange due to torque from the belt.

皿バネはスリットで可動フランジに係止されるからスプ
ライン加工が不要であり、従来のものをそのまま使うこ
とができ低コストである。又、スプラインがないからク
ラックの発生がない。
Since the disc spring is secured to the movable flange through a slit, there is no need for spline processing, and conventional springs can be used as is, resulting in low cost. Also, since there are no splines, no cracks will occur.

可動フランジと軸ブーりとの間にはスプライン部がない
からトルクによる摺勤抵抗が発生せず、フランジ間隔調
整時の移動が円滑であり、操作力が小さくてすむ。
Since there is no spline section between the movable flange and the shaft boob, sliding resistance due to torque does not occur, and movement when adjusting the flange interval is smooth, and the operating force is small.

(実施例) 第1図により一実施例の説明をする。第1図はこの実施
例の装置の従動側に用いられた変速プーリを示す。以下
、左右の方向はこの図面での左右の方向であり、番号を
附していない部材等は図示されていない。
(Example) An example will be explained with reference to FIG. FIG. 1 shows a speed change pulley used on the driven side of the device of this embodiment. Hereinafter, the left and right directions refer to the left and right directions in this drawing, and unnumbered members and the like are not shown.

固定フランジ1はプーリ軸3に固定されている。The fixed flange 1 is fixed to the pulley shaft 3.

プーリ軸3上には可動フランジ5が相対回転及び軸方向
移動自在に配置されている。
A movable flange 5 is arranged on the pulley shaft 3 so as to be relatively rotatable and movable in the axial direction.

第1図(b)に示すように、皿バネ7はスリット9とフ
ィンガ11とを周方向交互に有し、スリット9を可動フ
ランジ5に設けられた凸部13に係合し、フィンガ11
の先端をプーリ袖3に設けられたスプライン15に係合
し、可動フランジ5とプーリ軸3とを相対回転不能に連
結している。
As shown in FIG. 1(b), the disc spring 7 has slits 9 and fingers 11 alternately in the circumferential direction.
The distal end of the pulley sleeve 3 is engaged with a spline 15 provided on the pulley sleeve 3, and the movable flange 5 and the pulley shaft 3 are connected so as not to rotate relative to each other.

スプライン15の右側には止め輪17が装着され、皿バ
ネ7は可動フランジ5を固定フランジ1側へ付勢してい
る。なお、凸部13は各スリット9毎に設けずに、例え
ばスリット9の1/2あるいは1/3に設けてもよい。
A retaining ring 17 is attached to the right side of the spline 15, and the disk spring 7 urges the movable flange 5 toward the fixed flange 1. Note that the convex portions 13 may not be provided for each slit 9, but may be provided, for example, for 1/2 or 1/3 of the slits 9.

このように皿バネ7はスリット9とフィンガ11とでそ
れぞれ可動フランジ5とブーり軸3とに係合しており、
係合のためのスプライン加工をする必要がない。従って
、従来のものをそのまま使用することができ低コストで
あり、スプライン連結をしないからスプラインからのク
ラック発生がない。なお、フィンガll側におけるプー
リ軸3との連結トルクはフィンガ11の長さで緩和され
るからスリット9部にクラックが発生することはない。
In this way, the disc spring 7 is engaged with the movable flange 5 and the bobbin shaft 3 through the slit 9 and the finger 11, respectively.
There is no need to perform spline processing for engagement. Therefore, the conventional one can be used as is, resulting in low cost, and since there is no spline connection, there is no occurrence of cracks from the splines. Incidentally, since the coupling torque with the pulley shaft 3 on the finger 11 side is relaxed by the length of the finger 11, cracks will not occur in the slit 9 portion.

可動フランジ5とブーり軸3とは、上記のように、皿バ
ネ7によって連結されており、第4図の従来例のような
スプライン部がないからトルクが掛っても摺動抵抗が発
生しない。従って、間隔調整時の可動フランジ5の移動
が円滑であり、操作力が小さくてすむ。
As mentioned above, the movable flange 5 and the bobbin shaft 3 are connected by the disc spring 7, and since there is no spline part like the conventional example shown in Fig. 4, no sliding resistance occurs even when torque is applied. . Therefore, the movement of the movable flange 5 when adjusting the distance is smooth, and the operating force is small.

こうして、従動側の変速ブーり19が構成されている。In this way, the driven side speed change boolean 19 is configured.

次に、このような変速ブーリを用いた実施例のベルト式
無段変速機の構成と機能とを説明する。
Next, the structure and function of a belt type continuously variable transmission according to an embodiment using such a variable speed pulley will be explained.

駆動側の変速ブーり18のブーりldl21には原動機
が連結され従動側の変速プーリ19のブーリ軸3には負
荷が連結されている。これらの変速プーリはVベルト2
3て連結されている。駆動側の変速ブーり18の皿バネ
25の付勢力は変速ブーリ19の皿バネ7の付勢力とバ
ランスするようになっている。調整装置27は駆動測の
変速ブーリ18の可動フランジ29を軸方向に移動操作
し固定フランジ31との間隔を調整する。
A prime mover is connected to the pulley ldl21 of the speed change pulley 18 on the drive side, and a load is connected to the pulley shaft 3 of the speed change pulley 19 on the driven side. These speed change pulleys are V-belt 2
3 are connected. The biasing force of the disc spring 25 of the speed change pulley 18 on the drive side is balanced with the bias force of the disc spring 7 of the speed change pulley 19. The adjusting device 27 moves the movable flange 29 of the drive variable speed change pulley 18 in the axial direction to adjust the distance between it and the fixed flange 31.

調整装置27により駆動側プーリ18のフランジ間隔を
狭くすると、駆動側ブーり18においてVベルト23の
ピッチ径が大きくなりベルト張力の増加によりそれだ・
け従動側プーリ19のフランジ間隔が広がってピッチ径
が小さくなり、従動側の回転数が上昇する。又、駆動側
プーリ18のフランジ間隔を広くしピッチ径を小さくす
るとそれだけプーリ19のピッチ径が大きくなり従動1
1111Jの回転数が低下する。
When the flange spacing of the drive side pulley 18 is narrowed by the adjustment device 27, the pitch diameter of the V-belt 23 at the drive side boolean 18 increases, which is caused by an increase in belt tension.
The spacing between the flanges of the driven pulley 19 widens, the pitch diameter becomes smaller, and the rotational speed of the driven side increases. Also, if the flange spacing of the drive side pulley 18 is widened and the pitch diameter is decreased, the pitch diameter of the pulley 19 will be increased accordingly.
The rotation speed of 1111J decreases.

[発明の効果] 以上のように、この発明のベルト式無段変速機に用いら
れる変速プーリは、プーリ軸上に相対回転及び軸方向移
動自在に配置された可動フランジとプーリ軸とを皿バネ
を介して回転方向に連結し、この連結に皿バネのスリッ
トを利用した。従って、従来の皿バネを加工せずにその
まま使用することができて低コストであり、皿バネにス
プライン部がないからクラック発生が抑制され、ベルト
からのトルクによる可動フランジの相対回転が防止され
ベルトに剪断力が掛らない。又、可動フランジとブーリ
軸はスプライン連結されていないからトルクによる摺動
抵抗が発生せず、間隔調整時の移動が円滑に行われ、調
整装置の操作力が小さくてすむ。
[Effects of the Invention] As described above, the variable speed pulley used in the belt type continuously variable transmission of the present invention connects the movable flange, which is disposed on the pulley shaft so as to be relatively rotatable and movable in the axial direction, and the pulley shaft using a disc spring. They were connected in the rotational direction through a slit in the disc spring. Therefore, conventional disc springs can be used as they are without any modification, resulting in low cost.Since there is no spline part in the disc spring, the occurrence of cracks is suppressed, and relative rotation of the movable flange due to torque from the belt is prevented. No shearing force is applied to the belt. Furthermore, since the movable flange and the pulley shaft are not spline-connected, no sliding resistance due to torque is generated, and movement during interval adjustment is performed smoothly, and the operating force of the adjustment device is small.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は一実施例に用いられる変速プーリに係り、(a
)は断面図、(b)は止め輪を省略した部分的な側面図
、第2図は一従来例に係り、(a)は断面図、(b)は
皿バネの部分的な平面図、第3図は別の従来例の断面図
、第4図はさらに別の従来例の断面図である。 1・・・固定フランジ 5・・・可動フランジ 9・・・スリット 13・・・凸部 3 7 1 ・・プーリ軸 ・・皿バネ 1・・・フィンガ
FIG. 1 relates to a speed change pulley used in one embodiment, (a
) is a sectional view, (b) is a partial side view with the retaining ring omitted, FIG. 2 relates to a conventional example, (a) is a sectional view, (b) is a partial plan view of a disc spring, FIG. 3 is a sectional view of another conventional example, and FIG. 4 is a sectional view of still another conventional example. 1...Fixed flange 5...Movable flange 9...Slit 13...Protrusion 3 7 1...Pulley shaft...Disc spring 1...Finger

Claims (1)

【特許請求の範囲】[Claims] プーリ軸に固定された固定フランジと、この軸上に相対
回転及び軸方向移動自在に配置され固定フランジとの間
にベルト溝を形成する可動フランジと、スリットとフィ
ンガとを周方向交互に有しスリットを可動フランジの凸
部に係合しフィンガをプーリ軸に係合して可動フランジ
とプーリ軸とを相対一回転不能に連結し可動フランジを
固定フランジ側に付勢する皿バネとを備えた変速プーリ
を用いたことを特徴とするベルト式無段変速機。
A fixed flange fixed to the pulley shaft, a movable flange arranged on the shaft so as to be relatively rotatable and movable in the axial direction and forming a belt groove between the fixed flange, and slits and fingers arranged alternately in the circumferential direction. and a disc spring that engages the slit with the convex portion of the movable flange and engages the finger with the pulley shaft to connect the movable flange and the pulley shaft so that they cannot rotate one rotation relative to each other, and urges the movable flange toward the fixed flange. A belt-type continuously variable transmission characterized by the use of a variable speed pulley.
JP30313689A 1989-11-24 1989-11-24 Belt type continuously variable transmission Pending JPH03168451A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30313689A JPH03168451A (en) 1989-11-24 1989-11-24 Belt type continuously variable transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30313689A JPH03168451A (en) 1989-11-24 1989-11-24 Belt type continuously variable transmission

Publications (1)

Publication Number Publication Date
JPH03168451A true JPH03168451A (en) 1991-07-22

Family

ID=17917314

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30313689A Pending JPH03168451A (en) 1989-11-24 1989-11-24 Belt type continuously variable transmission

Country Status (1)

Country Link
JP (1) JPH03168451A (en)

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