JPH02513Y2 - - Google Patents
Info
- Publication number
- JPH02513Y2 JPH02513Y2 JP1983038823U JP3882383U JPH02513Y2 JP H02513 Y2 JPH02513 Y2 JP H02513Y2 JP 1983038823 U JP1983038823 U JP 1983038823U JP 3882383 U JP3882383 U JP 3882383U JP H02513 Y2 JPH02513 Y2 JP H02513Y2
- Authority
- JP
- Japan
- Prior art keywords
- carrier
- block
- pair
- variable transmission
- continuously variable
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims description 12
- 239000000969 carrier Substances 0.000 claims description 7
- 239000002184 metal Substances 0.000 description 4
- 238000010008 shearing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmissions By Endless Flexible Members (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
この考案は、ベルト駆動式の無段変速機用駆動
ベルトに関するものである。[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a drive belt for a belt-driven continuously variable transmission.
（従来の技術）
従来、ベルト駆動式無段変速機においては、無
端の金属帯を多層に重ねて形成したキヤリアに、
金属製のＶブロツクを連続して取付けて駆動ベル
トを形成し、この駆動ベルトを２個のＶ型ベルト
車に巻き掛け、一方のＶ型ベルト車を駆動するこ
とにより、他方のＶベルト車へトルクの伝達を行
つている。このように、無段変速機が作動してい
るときには、駆動ベルトのＶブロツクがＶ型ベル
ト車のＶ溝を形成する部分円錘状の駆動面に当接
して移動し、キヤリアはＶ型ベルト車には当接し
ない構造になつている。(Prior art) Conventionally, in a belt-driven continuously variable transmission, a carrier formed by stacking endless metal bands in multiple layers,
A drive belt is formed by attaching metal V-blocks in succession, and this drive belt is wrapped around two V-shaped belt wheels, and by driving one V-shaped belt wheel, it is possible to drive the other V-belt wheel. Transmits torque. In this manner, when the continuously variable transmission is operating, the V-block of the drive belt moves in contact with the partially conical drive surface forming the V-groove of the V-shaped belt wheel, and the carrier moves along the V-shaped belt. The structure is such that it does not come into contact with cars.
次に、従来のベルト駆動式無段変速機について
説明すると、第１図及び第２図において駆動側の
Ｖ型ベルト車１には、部分円錘状の駆動面２ａを
有する固定プーリ２と、このプーリ２と同一の部
分円錘状の駆動面３ａを有する可動プーリ３とが
あり、両プーリ２，３はそれぞれの駆動面２ａ，
３ａを対向させてＶ溝４を形成し、回転軸５に取
付けられている。そして、Ｖ型ベルト車１は、そ
の可動プーリ３が油圧等の手段により回転軸５の
軸線に沿つて移動させられて、Ｖ溝４の幅が変え
られるようになつている。従動側のＶ型ベルト車
６は、駆動側のＶ型ベルト車１と略同じ形をして
おり、その軸心部には回転軸７が取付けられてい
る。Ｖ型ベルト車１のＶ溝４とＶ型ベルト車６の
Ｖ溝（図示略）とに掛装される駆動ベル８は、非
常に薄い無端状の金属帯（以下、フープともい
う）９ａ，９ｂ，…，９ｎを多層に重ねて形成し
た一対のキヤリア９，９に所定の厚さを有する金
属製のＶブロツク１０を連続して取付けることに
より構成されている。 Next, a conventional belt-driven continuously variable transmission will be described. In FIGS. 1 and 2, a V-shaped belt pulley 1 on the drive side includes a fixed pulley 2 having a partially conical drive surface 2a, There is a movable pulley 3 having the same partially conical driving surface 3a as this pulley 2, and both pulleys 2 and 3 have respective driving surfaces 2a,
3a are opposed to form a V-groove 4, and are attached to a rotating shaft 5. The movable pulley 3 of the V-type belt pulley 1 is moved along the axis of the rotating shaft 5 by hydraulic means or the like, so that the width of the V-groove 4 can be changed. The V-type belt pulley 6 on the driven side has substantially the same shape as the V-type belt pulley 1 on the drive side, and has a rotating shaft 7 attached to its axial center. The drive bell 8, which is hung between the V groove 4 of the V-type belt pulley 1 and the V-groove (not shown) of the V-type belt pulley 6, has a very thin endless metal band (hereinafter also referred to as a hoop) 9a, It is constructed by successively attaching metal V-blocks 10 having a predetermined thickness to a pair of carriers 9, 9 formed by stacking layers 9b, . . . , 9n.
ここで、Ｖブロツク１０はテーパ状の側面１１
ａ，１１ａを有する本体部１１と、この本体部１
１の上面の中央部から上面に対して垂直に上方へ
突出した角棒状の接続部１２と、この接続部１２
の上端において本体部１１の上面に平行に形成さ
れた支持部とからなつている。そして、Ｖブロツ
ク１０は、その接続部１２の両側で、本体部１１
の上面と支持部１３の下面との間に、一対のキヤ
リア溝１４，１４が形成されている。また、Ｖブ
ロツク１０の側面１１ａ，１１ａのなすテーパ角
は型ベルト車１のＶ溝４のテーパ角と略同一にな
つている。このＶブロツク１０は、両側のキヤリ
ア溝１４，１４を一対のキヤリア９，９に嵌挿す
ることにより、キヤリア９，９に取付けられる。
このようにして、両キヤリア９，９にＶブロツク
１０を連続して取付けると、駆動ベルト８が形成
される。 Here, the V block 10 has a tapered side surface 11
a, 11a, and this main body 1
1, a square bar-shaped connecting portion 12 protruding upward perpendicularly to the upper surface from the center of the upper surface of the connecting portion 12;
It consists of a support part formed parallel to the upper surface of the main body part 11 at the upper end. The V-block 10 has main body parts 11 on both sides of the connection part 12.
A pair of carrier grooves 14, 14 are formed between the upper surface and the lower surface of the support portion 13. Further, the taper angle formed by the side surfaces 11a, 11a of the V block 10 is approximately the same as the taper angle of the V groove 4 of the mold belt pulley 1. This V block 10 is attached to the pair of carriers 9, 9 by fitting the carrier grooves 14, 14 on both sides into the pair of carriers 9, 9.
In this way, when the V blocks 10 are successively attached to both carriers 9, 9, the drive belt 8 is formed.
そして、Ｖ型ベルト車１とＶ型ベルト車６とに
掛装された駆動ベルト８は、Ｖ型ベルト車１が時
計方向へ回転すると、駆動ベルト８の各ブロツク
１０がＶ型ベルト車１から連続的に押出されてＶ
型ベルト車６に伝達し、このベルト車６にトルク
を伝達して、ベルト車６をヒＶ型ベルト車１と同
方向へ回転させる。無段変速機の作動中におい
て、Ｖ型ベルト車１のＶ溝４の幅及びＶ型ベルト
車６のＶ溝の幅が変えられると、Ｖ型ベルト車１
及び６内におけるＶブロツク１０の当接する回転
半径が変化し、回転軸５の回転数に対し回転軸７
の回転数が変化する。 When the V-type belt pulley 1 rotates clockwise, each block 10 of the drive belt 8 hangs from the V-type belt pulley 1 to the V-type belt pulley 1. Continuously extruded V
The torque is transmitted to the V-type belt pulley 6, and the torque is transmitted to the belt pulley 6 to rotate the belt pulley 6 in the same direction as the V-type belt pulley 1. During operation of the continuously variable transmission, if the width of the V groove 4 of the V type belt pulley 1 and the width of the V groove of the V type belt pulley 6 are changed, the V type belt pulley 1
The radius of rotation of the V-block 10 in contact with the V-block 10 within the rotary shaft 7 changes relative to the rotation speed of the rotary shaft 5.
The rotation speed changes.
（考案が解決しようとする課題）
しかし、従来のＶブロツク１０は、そのキヤリ
ア溝１４のフーブ当り面１４ａが、キヤリア９を
その中央部に位置させるために、中高の太鼓形に
形成されていたにも拘らず、駆動ベルト８は、無
段変速機の作動中において、キヤリア９が位置ず
れを生じ、Ｖブロツク１０の接続部１２の側面に
キヤリア９の側部が当接することがあつた。この
ため、キヤリア９の側部に傷が生じ、その傷の進
み具合によつては、キヤリア９が破断することが
あつた。(Problem to be solved by the invention) However, in the conventional V-block 10, the carrier groove 14 has a houb contacting surface 14a formed in the shape of a medium-high drum in order to position the carrier 9 in the center thereof. In spite of this, the carrier 9 of the drive belt 8 may be misaligned during the operation of the continuously variable transmission, and the side of the carrier 9 may come into contact with the side of the connecting portion 12 of the V-block 10. For this reason, scratches were generated on the sides of the carrier 9, and depending on how the scratches progressed, the carrier 9 could break.
この考案は、上記に鑑み、無段変速機の作動中
において、キヤリアをＶブロツクの接続部より面
粗度の秀れたＶプーリ側に移動させることによ
り、キヤリアの接続部側端部に損傷が発生するこ
とを防止することができる駆動ベルトを提供する
ことを目的とする。 In view of the above, this idea was developed by moving the carrier from the connection part of the V block to the side of the V pulley, which has excellent surface roughness, during operation of the continuously variable transmission, thereby damaging the end of the carrier on the connection part side. It is an object of the present invention to provide a drive belt that can prevent the occurrence of such problems.
（課題を解決するための手段）
上記課題を解決するために、本考案は、無端状
のフープを多層にして形成した一対のキヤリア
と、テーパ状の側面を有する本体部の上面中央か
ら上方へ突出する接続部の両側に形成された一対
のキヤリア溝を介して前記キヤリアに連続して取
付けられた多数のＶブロツクとからなり、一対の
Ｖ型ベルト車に巻き掛けられる無段変速機用駆動
ベルトであつて、前記Ｖブロツクのキヤリア面の
フープ当り面は、幅方向に亘つて上方に向いた凸
曲面をなし、かつその中央部よりも側面側に該凸
曲面の頂点を有することを特徴とするものであ
る。(Means for Solving the Problems) In order to solve the above problems, the present invention provides a pair of carriers formed of multiple layers of endless hoops, and a main body having tapered side surfaces. A continuously variable transmission drive consisting of a number of V blocks successively attached to the carrier via a pair of carrier grooves formed on both sides of a protruding connection part, and wound around a pair of V-shaped belt pulleys. The belt is characterized in that the hoop contacting surface of the carrier surface of the V-block has a convex curved surface facing upward in the width direction, and has an apex of the convex curved surface on the side surface side of the center portion. That is.
（作用）
前記のように、本考案は、Ｖブロツクのキヤリ
ア面のフープ当り面は、幅方向に亘つて上方に向
いた凸曲面をなし、かつその中央部よりも側面側
に該凸曲面の頂点を有するように構成したことに
より、キヤリアがＶブロツクの接続部側に移動す
ることを抑制することにより、キヤリアの側面が
Ｖブロツクの接続部側面と当接してキヤリアが破
損することを防止できる。また、キヤリアに加わ
る引張力は、前記頂点位置で最大となり、キヤリ
アの角部に引張力が集中する場合に比して、フー
プの剪断の発生率が低下しキヤリアの耐久性が大
となる。(Function) As described above, in the present invention, the hoop contact surface of the carrier surface of the V-block has a convex curved surface facing upward in the width direction, and the convex curved surface is formed on the side surface side of the center portion. By configuring it to have an apex, it is possible to prevent the carrier from moving toward the connection part of the V block, thereby preventing the carrier from being damaged due to the side surface of the carrier coming into contact with the side surface of the connection part of the V block. . Further, the tensile force applied to the carrier is maximum at the apex position, and compared to a case where the tensile force is concentrated at the corner of the carrier, the incidence of shearing of the hoop is reduced and the durability of the carrier is increased.
（実施例）
第３図は、本考案の一実施例の構成を示す断面
図である。(Embodiment) FIG. 3 is a sectional view showing the configuration of an embodiment of the present invention.
同図において、Ｖブロツク２０は、従来のＶブ
ロツク１０と同様に、本体部２１、接続部２２、
支持部２３、及びキヤリア溝２４を有している。
このＶブロツク２０は、そのキヤリア溝２４のフ
ープ当り面２４ａが、その幅方向に向いた凸曲面
をなし、かつその中央部よりも側面側に該凸曲面
の頂点Ｔを有する。すなわち、フープ当り面２４
ａは、その頂点Ｔが、フープ当り面２４ａの中央
に無く、本体部２１の側面２１ａ方向に偏つた位
置にある。本実施例においては、キヤリア９の幅
をｂとしたとき、頂点Ｔの側面２１ａ側からの距
離ｌは、ｌ≦（ｂ／３）になつている。勿論、こ
の比率に限定されるものではない。 In the same figure, the V-block 20, like the conventional V-block 10, includes a main body part 21, a connecting part 22,
It has a support part 23 and a carrier groove 24.
In this V block 20, the hoop contact surface 24a of the carrier groove 24 forms a convex curved surface facing in the width direction, and has an apex T of the convex curved surface on the side surface side rather than the center portion. That is, the hoop contact surface 24
The apex T of a is not located at the center of the hoop contact surface 24a, but is located at a position biased toward the side surface 21a of the main body portion 21. In this embodiment, when the width of the carrier 9 is b, the distance l from the side surface 21a side of the apex T is such that l≦(b/3). Of course, the ratio is not limited to this.
このような構成により、本実施例におけるキヤ
リア９は、無段変速機の作動中において、Ｖブロ
ツク２０の本体部２１の側面２１ａ側に偏り、キ
ヤリア９の内側面がＶブロツク２０の接続部２２
に接触することが抑制されるので、キヤリア９が
破損することを防止できる。 With this configuration, the carrier 9 in this embodiment is biased toward the side surface 21a of the main body 21 of the V-block 20 during operation of the continuously variable transmission, and the inner surface of the carrier 9 is aligned with the connecting portion 22 of the V-block 20.
Since contact with the carrier 9 is suppressed, damage to the carrier 9 can be prevented.
また、キヤリア９に加わる引張応力は、前記頂
点Ｔで最大となるため、キヤリア９の角部に引張
応力が集中する場合に比して、フープの剪断の発
生率が低下しキヤリアの耐久性が大となる。 Furthermore, since the tensile stress applied to the carrier 9 is maximum at the apex T, the incidence of shearing of the hoop is reduced and the durability of the carrier is improved compared to when the tensile stress is concentrated at the corners of the carrier 9. Becomes large.
（考案の効果）
以上詳細に説明したように、Ｖブロツクのキヤ
リア面のフープ当り面は、幅方向に亘つて上方に
向いた凸曲面をなし、かつその中央部よりも側面
側に該凸曲面の頂点を有するように構成したこと
により、キヤリアがＶブロツクの接続部側に移動
することを抑制することにより、キヤリアの側面
がＶブロツクの接続部側面と当接してキヤリアが
破損することを防止できる。また、キヤリアに加
わる引張力は、前記頂点位置で最大となり、キヤ
リアの角部に引張力が集中する場合に比して、フ
ープの剪断の発生率が低下しキヤリアの耐久性が
大となる。(Effect of the invention) As explained in detail above, the hoop contact surface of the carrier surface of the V-block has a convex curved surface facing upward in the width direction, and the convex curved surface is on the side surface side from the center part. By suppressing the carrier from moving toward the connection part of the V block, the carrier is prevented from being damaged due to the side surface of the carrier coming into contact with the side surface of the connection part of the V block. can. Further, the tensile force applied to the carrier is maximum at the apex position, and compared to a case where the tensile force is concentrated at the corner of the carrier, the incidence of shearing of the hoop is reduced and the durability of the carrier is increased.
第１図は従来のベルト駆動式無段変速機の要部
を示す正面図、第２図は第１図の−線断面拡
大図、第３図は本考案の一実施例の構成を第２図
と対応させて示す断面図である。
１……Ｖ型ベルト車、、４……Ｖ溝、６……Ｖ
型ベルト車、８……駆動ベルト、９……キヤリ
ア、９ａ，９ｂ，９ｎ……フープ、２０……Ｖブ
ロツク、２１……本体部、２１ａ……側面、２２
……接続部、２４……キヤリア溝、２４ａ……フ
ープ当り面。
FIG. 1 is a front view showing the main parts of a conventional belt-driven continuously variable transmission, FIG. 2 is an enlarged cross-sectional view taken along the line - - in FIG. 1, and FIG. It is a sectional view shown in correspondence with the figure. 1...V type belt wheel, 4...V groove, 6...V
Type belt wheel, 8... Drive belt, 9... Carrier, 9a, 9b, 9n... Hoop, 20... V block, 21... Main body, 21a... Side, 22
... Connection portion, 24 ... Carrier groove, 24a ... Hoop contact surface.
Claims (1)
ヤリアと、テーパ状の側面を有する本体部の上面
中央から上方へ突出する接続部に両側に形成され
た一対のキヤリア溝を介して前記キヤリアに連続
して取付けられた多数のＶブロツクとからなり、
一対のＶ型ベルト車に巻き掛けられる無段変速機
用駆動ベルトであつて、 前記Ｖブロツクのキヤリア面にフープ当り面
は、幅方向に亘つて上方に向いた凸曲面をなし、
かつその中央部よりも側面側に該凸曲面の頂点を
有することを特徴とする無段変速機用駆動ベル
ト。[Claims for Utility Model Registration] A pair of carriers formed by multiple layers of endless hoops, and a pair of carriers formed on both sides of a connecting part that protrudes upward from the center of the top surface of a main body having tapered side surfaces. consisting of a number of V blocks successively attached to the carrier via grooves,
A drive belt for a continuously variable transmission that is wound around a pair of V-shaped belt wheels, wherein a hoop contact surface on a carrier surface of the V block has a convex curved surface facing upward in the width direction,
A drive belt for a continuously variable transmission, characterized in that the apex of the convex curved surface is located closer to the side than the center thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3882383U JPS59144247U (en) | 1983-03-16 | 1983-03-16 | Drive belt for continuously variable transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3882383U JPS59144247U (en) | 1983-03-16 | 1983-03-16 | Drive belt for continuously variable transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59144247U JPS59144247U (en) | 1984-09-27 |
| JPH02513Y2 true JPH02513Y2 (en) | 1990-01-09 |
Family
ID=30169490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3882383U Granted JPS59144247U (en) | 1983-03-16 | 1983-03-16 | Drive belt for continuously variable transmission |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59144247U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004048804A1 (en) * | 2002-11-28 | 2004-06-10 | Honda Motor Co., Ltd. | Metallic belt for stepless speed changer |
| WO2009082196A1 (en) * | 2007-12-24 | 2009-07-02 | Robert Bosch Gmbh | Drive belt |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58124847A (en) * | 1982-01-18 | 1983-07-25 | Aisin Seiki Co Ltd | Transmission belt |
-
1983
- 1983-03-16 JP JP3882383U patent/JPS59144247U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58124847A (en) * | 1982-01-18 | 1983-07-25 | Aisin Seiki Co Ltd | Transmission belt |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004048804A1 (en) * | 2002-11-28 | 2004-06-10 | Honda Motor Co., Ltd. | Metallic belt for stepless speed changer |
| WO2009082196A1 (en) * | 2007-12-24 | 2009-07-02 | Robert Bosch Gmbh | Drive belt |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59144247U (en) | 1984-09-27 |
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| JPS6115331Y2 (en) | ||
| JPS6316912Y2 (en) | ||
| JPH058358Y2 (en) | ||
| JPH0333938B2 (en) | ||
| JPH0523867Y2 (en) | ||
| JPH0537068Y2 (en) | ||
| JPH0512573B2 (en) |