JP3008144B2 - Continuously variable transmission belt - Google Patents
Continuously variable transmission beltInfo
- Publication number
- JP3008144B2 JP3008144B2 JP5114116A JP11411693A JP3008144B2 JP 3008144 B2 JP3008144 B2 JP 3008144B2 JP 5114116 A JP5114116 A JP 5114116A JP 11411693 A JP11411693 A JP 11411693A JP 3008144 B2 JP3008144 B2 JP 3008144B2
- Authority
- JP
- Japan
- Prior art keywords
- pulley
- tension band
- belt
- continuously variable
- variable transmission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G5/00—V-belts, i.e. belts of tapered cross-section
- F16G5/16—V-belts, i.e. belts of tapered cross-section consisting of several parts
- F16G5/166—V-belts, i.e. belts of tapered cross-section consisting of several parts with non-metallic rings
Description
【０００１】[0001]
【産業上の利用分野】この発明は、無段変速機における
ベルトの改良に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved belt for a continuously variable transmission.
【０００２】[0002]
【従来の技術及びその課題】従来、無段変速機は図２に
概略図で示すように、駆動側プーリー１と従動側プーリ
ー２間にベルト３が掛装されており、前記駆動側プーリ
ー１の回転軸４には固定状に固定プーリー５が設けら
れ、これと対向して回転軸４に摺動移動可能に可動プー
リー６が設けられており、固定プーリー５と可動プーリ
ー６の対向する面は円錐状のプーリー円形面５ａ，６ａ
となっている。また、前記従動側プーリー２にも固定プ
ーリー７と対向して可動プーリー８が設けられ、各プー
リーの内側はプーリー円錐面７ａ，８ａとなっている。2. Description of the Related Art Conventionally, a continuously variable transmission has a belt 3 mounted between a driving pulley 1 and a driven pulley 2 as schematically shown in FIG. A fixed pulley 5 is fixedly provided on the rotating shaft 4, and a movable pulley 6 is slidably provided on the rotating shaft 4 in opposition to the fixed pulley 5. Opposed surfaces of the fixed pulley 5 and the movable pulley 6 Are conical pulley circular surfaces 5a, 6a
It has become. The driven pulley 2 is also provided with a movable pulley 8 facing the fixed pulley 7, and the inside of each pulley is formed with pulley conical surfaces 7a, 8a.
【０００３】ベルト３の掛装状態の要部拡大図を図３に
示す。すなわち、ベルト３は、その側面端面をプーリー
円錐面５ａ，６ａに当接させて掛装されるものであり、
ベルト３は図４に要部を拡大して示すように、多数のブ
ロック９，９，９と、この各ブロック９，９，９をエン
ドレスに連結する両側の張力帯１０，１０で構成されて
おり、各ブロック９の端面側に窪み状に形成された嵌合
溝９ａ，９ａにそれぞれ張力帯１０，１０が嵌合されて
おり、従来においては、この各ブロック９の端面９Ｐ
と、張力帯１０の端面１０Ｐはほぼ面一状となってお
り、プーリー円錐面５ａ，６ａに対し、各ブロック９の
端面９Ｐと張力帯１０の端面１０Ｐが面一状で当接し、
可動プーリー６および固定プーリー５間に挟まれて、各
プーリー５，６から内方に働く側圧（押圧力）がベルト
３を構成する各ブロック９の端面９Ｐと張力帯１０の端
面１０Ｐに同等の荷重分担率で加わり、この時に、各ブ
ロック９の表面の樹脂コーティングされた樹脂層がプー
リー円錐面５ａ，６ａに当接して、各ブロック９がプー
リー円錐面５ａ，６ａに巻き付く時、ブロック９のピッ
チ周期でノイズが発生し、このノイズにより無段変速機
全体の騒音が増大してしまい、また、ブロック９にコー
ティングされた樹脂層の摩擦係数が低いため、スリップ
が発生し易いという問題点があった。尚、ピッチノイズ
とスリップを防止するために張力帯の荷重分担率を高め
ようとすれば、張力帯の端面を突出させて出代を大きく
する必要があるが、張力帯の出代をあまり大きくする
と、無段変速機の運転時における押し込み力に対し張力
帯の出代が座屈してしまうという問題点があった。FIG. 3 is an enlarged view of a main part of the belt 3 in a mounted state. That is, the belt 3 is mounted with its side end face abutting on the pulley conical faces 5a, 6a.
The belt 3 is composed of a large number of blocks 9, 9, 9 and tension bands 10, 10 on both sides for connecting the blocks 9, 9, 9 endlessly, as shown in FIG. The tension bands 10, 10 are respectively fitted in fitting grooves 9a, 9a formed in a concave shape on the end face side of each block 9. Conventionally, the end face 9P of each block 9 is fitted.
And the end face 10P of the tension band 10 is substantially flush, and the end face 9P of each block 9 and the end face 10P of the tension band 10 abut against the pulley conical faces 5a and 6a,
Between the movable pulley 6 and the fixed pulley 5, the side pressure (pressing force) acting inward from each pulley 5, 6 is equivalent to the end face 9 P of each block 9 and the end face 10 P of the tension band 10 constituting the belt 3. At this time, the resin layer coated with resin on the surface of each block 9 comes into contact with the pulley conical surfaces 5a, 6a, and when each block 9 is wound around the pulley conical surfaces 5a, 6a, the block 9 Noise occurs at the pitch cycle of, and the noise increases the noise of the entire continuously variable transmission. In addition, since the friction coefficient of the resin layer coated on the block 9 is low, slip occurs easily. was there. In order to increase the load sharing ratio of the tension band in order to prevent pitch noise and slip, it is necessary to protrude the end face of the tension band to increase the allowance. Then, there has been a problem that the allowance of the tension band buckles with respect to the pushing force during operation of the continuously variable transmission.
【０００４】[0004]
【課題を解決するための手段】本発明は上記従来の問題
点に鑑み案出したものであって、スリップおよびノイズ
の発生を抑えることのできる無段変速機のベルトを提供
せんことを目的とし、その要旨は、多数のブロックを、
該各ブロックの端面に嵌合されたエンドレスの張力帯で
連結してなる複合ベルトの端部をプーリーの円錐面に当
接させて該プーリーに掛装される無段変速機のベルトに
おいて、前記張力帯の出代を、プーリーからの側圧（押
圧力）に対する荷重分担率が１００％となるように、張
力帯を前記プーリーの円錐面側へ突出させて端面をアー
ル状とし、前記各ブロックの端面と前記プーリーの円錐
面が非接触になるように構成したことである。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and has as its object to provide a belt for a continuously variable transmission capable of suppressing occurrence of slip and noise. , The gist is that many blocks,
The belt of the continuously variable transmission the end of the composite belt formed by connecting at a tension band fitted an endless on the end face of each of the block is brought into contact with the conical surface of the pulley is hung on the pulley, the The rise of the tension band is determined by the lateral pressure (push
Tension) so that the load sharing ratio for the pressure) is 100%.
Make the power band protrude toward the conical surface of the pulley, and
End of each block and the cone of the pulley
That is, the surface is configured to be non-contact .
【０００５】[0005]
【作用】ベルトを構成する各ブロックの端面よりも張力
帯の端面を外側へ突出させたため、プーリー間にベルト
が掛装された状態では、プーリーの円錐面に対し張力帯
の端面のみが当接することとなり、張力帯はブロックよ
り摩擦係数が高いため、スリップ及びノイズの発生が抑
えられる。また、張力帯の突出する端面はアール状に形
成されているため、このアール形状により無段変速機の
運転時における押し込み力に対し張力帯の端部が座屈す
ることが良好に防がれる。Since the end surface of the tension band protrudes outward from the end surface of each block constituting the belt, only the end surface of the tension band abuts on the conical surface of the pulley when the belt is mounted between the pulleys. That is, since the tension band has a higher coefficient of friction than the block, the generation of slip and noise is suppressed. Further, since the protruding end surface of the tension band is formed in a round shape, the round shape prevents the end portion of the tension band from buckling against the pushing force during operation of the continuously variable transmission.
【０００６】[0006]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。図１はプーリーのプーリー円錐面に対するベルト
の当接状態を示す要部断面構成図であり、ベルト３を構
成する各ブロック９の端面９Ｐ側には窪み状に嵌合溝９
ａが形成されており、この嵌合溝９ａ内に張力帯１０が
嵌合されており、各ブロック９は例えばアルミ製で形成
されており、その表面側には樹脂をコーティングした表
面樹脂層９ｂが形成されている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of a main part showing a contact state of a belt with a conical surface of a pulley of a pulley. A concave groove 9 is formed on an end surface 9P side of each block 9 constituting the belt 3.
a, a tension band 10 is fitted in the fitting groove 9a, each block 9 is made of, for example, aluminum, and a resin-coated surface resin layer 9b is formed on the surface side thereof. Is formed.
【０００７】また、前記張力帯１０内には複数の芯線１
０ａ，１０ａ，１０ａが長手方向に埋設されている。な
お、張力帯１０はゴムに繊維を混合させた材質で形成さ
れたものであり、弾性率が６０００kg/cm2以上となって
いる。In the tension band 10, a plurality of core wires 1 are provided.
0a, 10a and 10a are buried in the longitudinal direction. The tension band 10 is formed of a material obtained by mixing fibers with rubber, and has an elastic modulus of 6000 kg / cm 2 or more.
【０００８】張力帯１０の端面１０Ｐはブロック９の端
面９Ｐよりも外側へ所定の出代Ｓ（例えば１．０mm程
度）で突出されたものとなっており、さらに、張力帯１
０の端面１０Ｐはアール状に形成されている。プーリー
にベルト３が掛装された時には、プーリー円錐面５ａに
対し張力帯１０のアール状端面１０Ｐが当接し、張力帯
１０のプーリーからの側圧（押圧力）に対する荷重分担
率が１００％となり、ブロック９の端面９Ｐとプーリー
円錐面５ａとが非接触となるように構成されている。The end surface 10P of the tension band 10 projects outward from the end surface 9P of the block 9 with a predetermined protrusion S (for example, about 1.0 mm).
0 end face 10P is formed in a round shape. When the belt 3 is mounted on the pulley, the round end face 10P of the tension band 10 abuts against the pulley conical surface 5a, and the load sharing ratio of the tension band 10 to the side pressure (pressing force) from the pulley becomes 100%. The end surface 9P of the block 9 and the pulley conical surface 5a are configured to be in non-contact.
【０００９】このように本例では、張力帯１０の出代Ｓ
を十分に確保し、さらに張力帯１０の出代の端面１０Ｐ
をアール状に形成したため、プーリー円錐面５ａ，６ａ
とブロック９の端面９Ｐは非接触となり、プーリー円錐
面５ａには張力帯１０の出代Ｓ端面のアール状端面１０
Ｐのみが当接し、張力帯の荷重分担率が１００％に恒久
的に維持され、ベルトのノイズ及びスリップの発生を良
好に抑えることができ、また、無段変速機の運転時にお
ける押し込み力に対して張力帯１０の出代Ｓ部が座屈し
ない構造とすることができる。As described above, in the present embodiment, the rise S of the tension band 10 is performed.
And the end face 10P of the extension of the tension band 10
Are formed in a round shape, so that the pulley conical surfaces 5a, 6a
And the end surface 9P of the block 9 is not in contact with the end surface 9P of the pulley cone surface 5a.
Only P contacts, the load sharing ratio of the tension band is permanently maintained at 100%, the occurrence of belt noise and slip can be suppressed well, and the pushing force during operation of the continuously variable transmission is reduced. On the other hand, it is possible to adopt a structure in which the protrusion S portion of the tension band 10 does not buckle.
【００１０】[0010]
【発明の効果】本発明は、多数のブロックを、該各ブロ
ックの端面に嵌合されたエンドレスの張力帯で連結して
なる複合ベルトの端部をプーリーの円錐面に当接させて
該プーリーに掛装される無段変速機のベルトにおいて、
前記張力帯の出代を、プーリーからの側圧（押圧力）に
対する荷重分担率が１００％となるように、張力帯を前
記プーリーの円錐面側へ突出させて端面をアール状と
し、前記各ブロックの端面と前記プーリーの円錐面が非
接触になるように構成したことにより、複合ベルトを構
成する各ブロックの端面とプーリー円錐面とを常に非接
触状態として、張力帯の端面のみがプーリーの円錐面と
当接し、恒久的に張力帯の荷重分担率を１００％に維持
することができ、プーリー間でのスリップ及びノイズの
発生を良好に低減させることができ、また、張力帯の端
面のアール形状により張力帯の座屈を防ぐことができる
効果を有する。According to the present invention, the end of a composite belt formed by connecting a number of blocks with an endless tension band fitted to the end surface of each block is brought into contact with the conical surface of the pulley. In the belt of the continuously variable transmission mounted on
The allowance of the tension band is changed to the lateral pressure (pressing force) from the pulley.
So that the load sharing ratio for the
Protrude the conical surface of the pulley to make the end surface round.
The end surface of each block and the conical surface of the pulley are not
By making contact, the end face of each block constituting the composite belt and the conical surface of the pulley are always in a non-contact state, and only the end face of the tension band comes into contact with the conical surface of the pulley, and the tension band is permanently The load sharing ratio of the belt can be kept at 100%, the occurrence of slip and noise between pulleys can be reduced, and the buckling of the tension band can be prevented by the round shape of the end surface of the tension band. It has the effect of being able to.
【図１】プーリー円錐面とベルトとの当接状態を示す要
部断面構成図である。FIG. 1 is a cross-sectional configuration view of a main part showing a contact state between a conical surface of a pulley and a belt.
【図２】無段変速機の概略構成図である。FIG. 2 is a schematic configuration diagram of a continuously variable transmission.
【図３】無段変速機のプーリーにベルトを掛装した状態
の要部拡大図である。FIG. 3 is an enlarged view of a main part in a state where a belt is mounted on a pulley of the continuously variable transmission.
【図４】従来のベルトの構造を示す要部拡大斜視図であ
る。FIG. 4 is an enlarged perspective view of a main part showing a structure of a conventional belt.
１ 駆動側プーリー ２ 従動側プーリー ３ ベルト ５ 固定プーリー ５ａ プーリー円錐面 ６ 可動プーリー ６ａ プーリー円錐面 ９ ブロック ９ａ 嵌合溝 ９ｂ 表面樹脂層 ９Ｐ 端面 １０ 張力帯 １０ａ 芯線 １０Ｐ 端面 Ｓ 出代 REFERENCE SIGNS LIST 1 drive side pulley 2 driven side pulley 3 belt 5 fixed pulley 5a pulley conical surface 6 movable pulley 6a pulley conical surface 9 block 9a fitting groove 9b surface resin layer 9P end face 10 tension band 10a core wire 10P end face S
Claims (1)
に嵌合されたエンドレスの張力帯で連結してなる複合ベ
ルトの端部をプーリーの円錐面に当接させて該プーリー
に掛装される無段変速機のベルトにおいて、前記張力帯
の出代を、プーリーからの側圧（押圧力）に対する荷重
分担率が１００％となるように、張力帯を前記プーリー
の円錐面側へ突出させて端面をアール状とし、前記各ブ
ロックの端面と前記プーリーの円錐面が非接触になるよ
うに構成したことを特徴とする無段変速機のベルト。An end of a composite belt formed by connecting a number of blocks with an endless tension band fitted to an end face of each block is abutted on the conical surface of a pulley and is mounted on the pulley. In the belt of a continuously variable transmission, the tension band
Is the load for the lateral pressure (pressing force) from the pulley.
Pull the tension band to the pulley so that the sharing ratio is 100%.
The end face is rounded by projecting toward the conical surface of
The end face of the lock and the conical surface of the pulley will be out of contact
A belt for a continuously variable transmission, wherein the belt is configured as follows .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5114116A JP3008144B2 (en) | 1993-04-15 | 1993-04-15 | Continuously variable transmission belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5114116A JP3008144B2 (en) | 1993-04-15 | 1993-04-15 | Continuously variable transmission belt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06300087A JPH06300087A (en) | 1994-10-25 |
| JP3008144B2 true JP3008144B2 (en) | 2000-02-14 |
Family
ID=14629541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5114116A Expired - Fee Related JP3008144B2 (en) | 1993-04-15 | 1993-04-15 | Continuously variable transmission belt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3008144B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6144970B2 (en) * | 2013-02-27 | 2017-06-07 | 三ツ星ベルト株式会社 | Transmission belt |
-
1993
- 1993-04-15 JP JP5114116A patent/JP3008144B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06300087A (en) | 1994-10-25 |
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