JPS6275167A - Continuously variable transmission - Google Patents
Continuously variable transmissionInfo
- Publication number
- JPS6275167A JPS6275167A JP21697485A JP21697485A JPS6275167A JP S6275167 A JPS6275167 A JP S6275167A JP 21697485 A JP21697485 A JP 21697485A JP 21697485 A JP21697485 A JP 21697485A JP S6275167 A JPS6275167 A JP S6275167A
- Authority
- JP
- Japan
- Prior art keywords
- belt
- groove
- continuously variable
- variable transmission
- drive element
- 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
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
- F16H9/04—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
Abstract
Description
【発明の詳細な説明】 肢血立■ 本発明はベルト伝動型無段変速機に関するものである。[Detailed description of the invention] Limb status■ The present invention relates to a belt-driven continuously variable transmission.
′ ・ ′ び。占
この種の無段変速機は、ＣＶＴ等に利用される例が、例
えば米国特許第４．２９５．８３６号明細書により公知
である。この公知の無段変速機は例えば第６図に示すよ
うにガイドディスク１）の溝に沿って移動可能なベルト
・ドライブ・エレメント１２を有し、そのベルト・ドラ
イブ・エレメント１２に平ベルト１３が巻掛けられ、ベ
ルト・ドライブ・エレメント１２を移動することにより
、平ベルト１３のピッチ円径を変化させる。' · ' Beauty. An example of this type of continuously variable transmission used in a CVT or the like is known, for example, from US Pat. No. 4,295,836. This known continuously variable transmission has a belt drive element 12 movable along the groove of a guide disk 1), as shown in FIG. 6, for example, and a flat belt 13 is attached to the belt drive element 12. By moving the belt drive element 12, the pitch diameter of the flat belt 13 is changed.
この従来の無段変速機では平ベルトとベルト・ドライブ
・エレメントとの間の接触面積が小さいので高負荷を伝
達するこ六が難しい。またガイドディスクが回転して動
力を伝達するとき平ベルトが軸方向に振れてガイドディ
スクに押し付けられるために、ベルトの耐久性が低下す
る。In this conventional continuously variable transmission, the contact area between the flat belt and the belt drive element is small, making it difficult to transmit high loads. Furthermore, when the guide disk rotates and transmits power, the flat belt swings in the axial direction and is pressed against the guide disk, reducing the durability of the belt.
口 占を”ン る−・
本発明は、従来の問題点を、各ベルト・ドライブ・エレ
メントのベルト接触面に少なくとも１つの周方向に延在
する溝を形成し、その溝に係合する突起をベルトに形成
することを特徴とする無段変速機により達成した。The present invention solves the conventional problem by forming at least one circumferentially extending groove on the belt contacting surface of each belt drive element, and providing a protrusion that engages with the groove. This was achieved using a continuously variable transmission characterized by forming a belt.
立里及乏立来
本発明によりベルトに形成した突起がベルト・ドライブ
・エレメントの溝に係合し、その溝に沿って走行するの
で、ベルトは軸方向に振れることがなく、耐久性が向上
した。またベルト・ドライブ・エレメントの溝にベルト
の突起が係合するのでベルトとベルト・ドライブ・エレ
メントとの間の接触面積が増大し、摩擦伝動負荷が増大
し、高負荷伝達が可能になった。Since the protrusions formed on the belt according to the present invention engage the grooves of the belt drive element and run along the grooves, the belt does not swing in the axial direction, improving durability. did. Furthermore, since the protrusions of the belt engage with the grooves of the belt drive element, the contact area between the belt and the belt drive element increases, the frictional transmission load increases, and high load transmission becomes possible.
溝と突起の数を増やすことにより更に高負荷の伝達が可
能になる。By increasing the number of grooves and protrusions, even higher loads can be transmitted.
溝とベルトをＶ型に形成すると接触面積は更に増大する
とともに、楔効果が得られる。Forming the groove and the belt in a V-shape further increases the contact area and provides a wedge effect.
本発明によると、ベルト・ドライブ・エレメントとベル
トの間の接触面の表面粗さを粗くして摩擦係数をあげた
り、摩擦係数の高い材質を用いたりして、コスト高や、
ベルトの耐久性の低下を生じることが回避できる。According to the present invention, the surface roughness of the contact surface between the belt drive element and the belt is increased to increase the friction coefficient, or a material with a high friction coefficient is used, thereby reducing the cost.
Deterioration in belt durability can be avoided.
１止血
第１図及び第２図に、２個のベルト車１を有する無段変
速機の１つのベルト車の一部を示す。ベルト車１は２個
の対向するガイドディスク２と、そのガイドディスク２
に形成された放射状溝３の夫々に移動可能に装着された
ベルト・ドライブ・エレメント４とを有する。ベルト・
ドライブ・エレメント４は両方のガイドディスク２の間
に架は渡される二番ベルト・ドライブ・エレメント２に
は周方向に延在する１つの溝５が形成される。２つのベ
ルト車１にはベルト５が巻掛けられる。この場合、ベル
ト６はベルト・ドライブ・エレメント４に接触し、ベル
ト・ドライブ・エレメントの溝５に係合する突起７が形
成される。溝５は適宜の形状とすることができるが、■
型に形成し、突起７はＶ型溝５に適合する形状に形成す
ると摩擦面積を増大するという効果がある。ベルト・ド
ライブ・エレメント４は図示しない手段により半径方向
に移動調節することにより変速する。1 Hemostasis FIGS. 1 and 2 show a part of one belt sheave of a continuously variable transmission having two belt sheaves 1. FIG. The belt pulley 1 has two opposing guide disks 2 and the guide disks 2.
and a belt drive element 4 movably mounted in each of the radial grooves 3 formed in the belt. belt·
The drive element 4 is suspended between both guide disks 2. A groove 5 extending in the circumferential direction is formed in the second belt drive element 2. A belt 5 is wound around the two belt pulleys 1. In this case, the belt 6 contacts the belt drive element 4 and is formed with a projection 7 that engages in a groove 5 of the belt drive element. The groove 5 can have an appropriate shape, but ■
If the protrusion 7 is formed into a shape that fits the V-shaped groove 5, it has the effect of increasing the friction area. The belt drive element 4 is shifted in speed by adjusting its movement in the radial direction by means not shown.
第３図及び第４図に示す変形例では、第１図及び第２図
の実施例に対し、ベルト６に形成される突起７を並列す
る複数個の突起として形成しであることと、ベルト・ド
ライブ・エレメント４に形成する溝５がベルト６の突起
に対応する複数の溝である点が変形されている。その他
の構造は全く同様であるので、対応する部分に同一符号
を付して説明は省略する。In the modification shown in FIGS. 3 and 4, the protrusions 7 formed on the belt 6 are formed as a plurality of parallel protrusions, compared to the embodiment shown in FIGS. 1 and 2. - A modification is that the grooves 5 formed in the drive element 4 are a plurality of grooves corresponding to the protrusions of the belt 6. Since the other structures are exactly the same, corresponding parts are given the same reference numerals and explanations will be omitted.
第５図には第３図の実施例が１つのベルト６に複数の突
起７を設けたのに対し、突起の数だけの別々のＶベルト
８を巻掛ける例を示す。In contrast to the embodiment shown in FIG. 3 in which a plurality of protrusions 7 are provided on one belt 6, FIG. 5 shows an example in which as many separate V-belts 8 as there are protrusions are wound around the belt.
第１図は本発明に係る無段変速機の１つのベルト車の部
分断面図、第２図は第１図の側面断面図、第３図は変形
例の第１図に対応する断面図、第４図は第３図の例の第
２図に対応する断面図、第５図は別の変形例の部分断面
図、第６図は従来の無段変速機の斜視図である。
図において、
■・・・ベルト車 ２・・・ガイドディスク３・
・・放射状溝
４・・・ベルト・ドライブ・エレメント５・・・溝
６・・・ベルト７・・・突起FIG. 1 is a partial sectional view of one belt pulley of a continuously variable transmission according to the present invention, FIG. 2 is a side sectional view of FIG. 1, and FIG. 3 is a sectional view of a modified example corresponding to FIG. 1. 4 is a sectional view corresponding to FIG. 2 of the example shown in FIG. 3, FIG. 5 is a partial sectional view of another modification, and FIG. 6 is a perspective view of a conventional continuously variable transmission. In the figure, ■...Belt wheel 2...Guide disk 3.
...Radial groove 4...Belt drive element 5...Groove
6...Belt 7...Protrusion
Claims (2)
た放射状溝に移動可能に装着された複数のベルト・ドラ
イブ・エレメントとを有する２個のベルト車と、該２個
のベルト車のベルト・ドライブ・エレメントに巻掛けら
れるベルトとを有し、２個のベルト車のベルト・ドライ
ブ・エレメントの位置を変えることにより変速する無段
変速機において、前記ベルト・ドライブ・エレメントの
各ベルト接触面に少なくとも１つの周方向に延在する溝
が形成され、前記ベルトに前記溝に係合する突起が形成
されていることを特徴とする無段変速機。(1) Two belt pulleys having a guide disk and a plurality of belt drive elements movably mounted in radial grooves formed in the guide disk, and a belt drive of the two belt pulleys. - In a continuously variable transmission that has a belt wound around the element and changes speed by changing the position of the belt drive element of two belt wheels, at least A continuously variable transmission characterized in that a groove extending in a circumferential direction is formed, and a protrusion that engages with the groove is formed on the belt.
Ｖ型溝により形成されていることを特徴とする特許請求
の範囲第１項に記載の無段変速機。(2) The continuously variable transmission according to claim 1, wherein the groove of the belt drive element is formed by a plurality of V-shaped grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21697485A JPS6275167A (en) | 1985-09-30 | 1985-09-30 | Continuously variable transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21697485A JPS6275167A (en) | 1985-09-30 | 1985-09-30 | Continuously variable transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6275167A true JPS6275167A (en) | 1987-04-07 |
Family
ID=16696834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21697485A Pending JPS6275167A (en) | 1985-09-30 | 1985-09-30 | Continuously variable transmission |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6275167A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1072818A1 (en) | 1999-07-27 | 2001-01-31 | Kenji Mimura | Transmission |
| US6458054B1 (en) | 1998-07-24 | 2002-10-01 | Kenji Mimura | Transmission |
| JP2009518600A (en) * | 2005-12-10 | 2009-05-07 | シーヴィトロン リミテッド | Transmission system particularly useful as a continuously variable transmission |
-
1985
- 1985-09-30 JP JP21697485A patent/JPS6275167A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6458054B1 (en) | 1998-07-24 | 2002-10-01 | Kenji Mimura | Transmission |
| EP1072818A1 (en) | 1999-07-27 | 2001-01-31 | Kenji Mimura | Transmission |
| JP2009518600A (en) * | 2005-12-10 | 2009-05-07 | シーヴィトロン リミテッド | Transmission system particularly useful as a continuously variable transmission |
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