JPH058358Y2 - - Google Patents
Info
- Publication number
- JPH058358Y2 JPH058358Y2 JP17726886U JP17726886U JPH058358Y2 JP H058358 Y2 JPH058358 Y2 JP H058358Y2 JP 17726886 U JP17726886 U JP 17726886U JP 17726886 U JP17726886 U JP 17726886U JP H058358 Y2 JPH058358 Y2 JP H058358Y2
- Authority
- JP
- Japan
- Prior art keywords
- pillar
- belt
- metal band
- drive belt
- curves
- 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 - Lifetime
Links
- 239000002184 metal Substances 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Landscapes
- Transmissions By Endless Flexible Members (AREA)
Description
本考案は、ベルト式無段変速機の駆動ベルトに
関し、さらに詳しくは、駆動ベルトが掛け回しさ
れた両プーリ間の芯ずれによるエレメントの磨耗
および無端金属帯の損傷を防止してなるものであ
る。
The present invention relates to a drive belt for a belt-type continuously variable transmission, and more specifically, to prevent element wear and damage to an endless metal band due to misalignment between both pulleys around which the drive belt is wound. .
一般にベルト式無段変速機は、第３図に示すよ
うに無端状の金属帯１と、上記金属帯１の周方向
に多数配列された金属ブロツクからなるエレメン
ト２によりなる駆動ベルト３が、各一対の円錐形
円板の距離を相対的に制御可能にした駆動側プー
リ４と、従動側プーリ５との間に掛け回されてト
ルクを伝達するようになつている。
また、上記駆動側プーリ４は、互いに軸方向に
円錐面が対向する一対の円錐形円板からなる固定
側シーブ４ａと、可動側シーブ４ｂとを有し、固
定側シーブ４ａは駆動軸６に一体的に固定され、
可動側シーブ４ｂは駆動軸６に摺動可能に保持さ
れる。上記従動側プーリ５は、固定側シーブ５ａ
と可動側シーブ５ｂとからなり、固定側シーブ５
ａは従動軸７に一体的に固定され、可動側シーブ
５ｂは従動軸７に摺動可能に保持されている。そ
して、上記両プーリ４，５の軸間距離Ｌを一定に
して可動側シーブ４ｂおよび５ｂを、互いに相反
するように軸方向に油圧制御などにより摺動させ
ることにより、Ｖ溝幅D1，D2を無段階に変化さ
せるようになつている。
しかしながら、従来のベルト式無段変速機で
は、両プーリ４，５とのＶ溝中心に芯ずれΔxが
生じて、運転状態における駆動ベルト３のエレメ
ント２は、トルクが伝達される従動側プーリ５に
入り込む部分で、プーリのＶ溝形状にならおうと
してエレメント２のデインプル２ａを中心に回転
して急激に捩られ、トルクを伝達しない側では上
記Ｖ溝中心の芯ずれΔxを吸収しようとしてエレ
メント２は相互にずれたり、エレメント間のクリ
アランス分だけ傾いたりする。
従つて、第４図および第５図に示すように金属
帯１が、エレメント２のピラー部２ｂにおけるエ
ツジ部分に当接して損傷を受け易く、あるいはエ
レメント２のピラー部２ｂが異常摩耗して折損し
たりするなどの問題があつた。
そこで、上述した問題点を解決するために、例
えば実開昭59−66049号公報に示すように各エレ
メントのピラー部に、別途成形された保護部材を
取付けてなるものが提案されている。
In general, a belt-type continuously variable transmission has a drive belt 3 consisting of an endless metal band 1 and elements 2 each made of a large number of metal blocks arranged in the circumferential direction of the metal band 1, as shown in FIG. It is arranged between a driving pulley 4 whose distance between a pair of conical discs can be controlled relatively, and a driven pulley 5 to transmit torque. The drive pulley 4 has a fixed sheave 4a and a movable sheave 4b, each of which is a pair of conical disks with conical surfaces facing each other in the axial direction.The fixed sheave 4a is connected to the drive shaft 6. integrally fixed,
The movable sheave 4b is slidably held on the drive shaft 6. The driven pulley 5 has a fixed sheave 5a.
and a movable sheave 5b, and a fixed sheave 5.
a is integrally fixed to the driven shaft 7, and the movable sheave 5b is slidably held on the driven shaft 7. Then, by keeping the distance L between the axes of both the pulleys 4 and 5 constant and sliding the movable sheaves 4b and 5b in the axial direction opposite to each other by hydraulic control or the like, the V-groove widths D 1 and D are adjusted. 2 can be changed steplessly. However, in the conventional belt-type continuously variable transmission, a misalignment Δx occurs at the center of the V groove between the pulleys 4 and 5, and the element 2 of the drive belt 3 in the operating state At the part where it enters, it tries to follow the V-groove shape of the pulley and rotates around the dimple 2a of the element 2 and is suddenly twisted, and on the side that does not transmit torque, the element 2 tries to absorb the misalignment Δx of the center of the V-groove. are shifted from each other or tilted by the clearance between the elements. Therefore, as shown in FIGS. 4 and 5, the metal band 1 is likely to come into contact with the edge portion of the pillar portion 2b of the element 2 and be damaged, or the pillar portion 2b of the element 2 may be damaged due to abnormal wear. There were problems such as. Therefore, in order to solve the above-mentioned problems, it has been proposed, for example, as shown in Japanese Utility Model Application Publication No. 59-66049, that a separately molded protection member is attached to the pillar portion of each element.
しかしながら、このような方式では、保護部材
の分だけ部品点数が多くなると共に、上記保護部
材を各エレメントのピラー部に装着する組付工数
が増大し、コスト高になるなどの問題がある。
本考案は、上述した事情に鑑みてなされたもの
で、ベルト式無段変速機の駆動ベルトを構成する
エレメントのピラー部に、両プーリ間におけるＶ
溝中心の芯ずれを吸収するために所定の半径から
なる曲線でクラウニングを施し、金属帯が当接し
た場合の面圧を下げて金属帯の損傷を防止するこ
とを目的としてなるベルト式無段変速機の駆動ベ
ルトを提供するものである。
However, such a method has problems such as an increase in the number of parts due to the protection member, and an increase in the number of assembly steps for attaching the protection member to the pillar portion of each element, resulting in high costs. The present invention was made in view of the above-mentioned circumstances, and includes a V
A belt-type stepless belt that is crowned with a curved line of a predetermined radius to absorb misalignment at the center of the groove, reducing the surface pressure when the metal band comes into contact and preventing damage to the metal band. It provides a drive belt for a transmission.
上記目的を達成するために、本考案は、無端状
の金属帯と、上記金属帯の周方向に多数配列され
た金属ブロツクからなるエレメントにより構成さ
れる駆動ベルトにおいて、上記エレメントのピラ
ーの両側面を、エレメントの前側および後側のシ
ヨルダー端部をそれぞれ中心として所定の半径か
らなる２つの曲線で形成し、上記２つの曲線の交
点および上記曲線とピラー前後の交点に、任意の
半径で面取りを施してなるように構成している。
In order to achieve the above object, the present invention provides a drive belt composed of an element consisting of an endless metal band and a large number of metal blocks arranged in the circumferential direction of the metal band, on both sides of the pillars of the element. is formed by two curves with predetermined radii centered on the front and rear shoulder ends of the element, and chamfers are made with arbitrary radii at the intersections of the two curves and the intersections of the above curves before and after the pillar. It is structured so that it can be used.
上記構成に基づいて、本考案によるベルト式無
段変速機の駆動ベルトは、駆動ベルトを構成する
エレメントのピラー両側面に所定の半径からなる
曲線で面取りが施されているので、ピラーのエツ
ジ部分がなくなり、両プーリのＶ溝中心に芯ずれ
が生じて、エレメントが回転したりベルト全体が
捩れることにより、無端状の金属帯がピラーに当
接してもかじりなどが起らず、金属帯が損傷を受
けることがない。
Based on the above configuration, the drive belt of the belt-type continuously variable transmission according to the present invention is chamfered with a curved line having a predetermined radius on both sides of the pillar of the element constituting the drive belt, so that the edge portion of the pillar As a result, the center of the V-groove of both pulleys is misaligned, and the element rotates or the entire belt is twisted, so that even when the endless metal band comes into contact with the pillar, galling does not occur, and the metal band will not be damaged.
以下、本考案による実施例を添付した図面に基
づいて詳細に説明する。
第１図は本考案による実施例を示すエレメント
の正面図、第２図は第１図の−断面を示す拡
大図である。図において、従来例と対応する同一
個所および部分には、同一符号を付して説明を省
略する。
駆動ベルト３を構成するエレメント２のピラー
２ｂは、シヨルダー２ｃの両側で前部Ａおよび後
部Ｂと端面Ｃ，Ｄとの交点をそれぞれ中心P0と
し、ピラー２ｂの側端面との交点をP1，P2とし
た時、上記0 1および0 2をそれぞれ半径Ｒと
する曲線で面取りを施し、上記半径Ｒとする両面
取り部の交点P3および半径Ｒとエレメント２の
前部Ａおよび後部Ｂとの交点P4，P5は、任意の
半径r1，r2なる半径で面取りが施されている。
従つて、Ｖ溝中心の芯ずれにより、上記エレメ
ント２のピラー２ｂ側面に金属帯１が当接して
も、金属帯１がかじりなどによる損傷を受けるこ
とがなくなる。
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a front view of an element showing an embodiment according to the present invention, and FIG. 2 is an enlarged view showing a cross section taken along the line -- in FIG. In the drawings, the same parts and parts corresponding to the conventional example are given the same reference numerals, and the description thereof will be omitted. The pillar 2b of the element 2 constituting the drive belt 3 has a center P 0 at the intersection of the front part A and the rear part B with the end faces C and D on both sides of the shoulder 2c, and a center P 1 at the intersection with the side end face of the pillar 2b. , P 2 , the above 0 1 and 0 2 are respectively chamfered with a curve having a radius R, and the intersection point P 3 of the double-sided chamfered part with the above radius R, and the radius R and the front part A and the rear part B of the element 2. The intersection points P 4 and P 5 are chamfered with arbitrary radii r 1 and r 2 . Therefore, even if the metal band 1 comes into contact with the side surface of the pillar 2b of the element 2 due to the misalignment of the V-groove center, the metal band 1 will not be damaged by galling or the like.
以上詳細に説明したように、本考案によるベル
ト式無段変速機の駆動ベルトは、金属帯の周方向
に配列された金属ブロツクからなるエレメントの
ピラー両側面に、従来例のように保護部材を取付
けるものと異なり、所定の半径で面取りが施され
たものであり、上記エレメントのピラーに金属帯
の端面が当接しても、金属帯の面圧が低くなり金
属帯の損傷が防止されるので、寿命の延長が図れ
る。
As explained above in detail, the drive belt of the belt-type continuously variable transmission according to the present invention has protective members on both sides of the pillar of the element made of metal blocks arranged in the circumferential direction of the metal band, as in the conventional example. Unlike the ones that are installed, it is chamfered at a predetermined radius, so even if the end face of the metal strip comes into contact with the pillar of the above element, the surface pressure on the metal strip will be low and damage to the metal strip will be prevented. , the lifespan can be extended.
第１図は本考案による実施例を示すエレメント
の正面図、第２図は第１図の−断面を示す拡
大図、第３図は無段変速機の要部を示す一部破断
した構成図、第４図は従来のエレメントを示す正
面図、第５図は面取りによる芯ずれ時の駆動状態
を示す第４図の−断面図である。
１……金属帯、２……エレメント、２ｂ……ピ
ラー、２ｃ……シヨルダー、Ｒ……面取り部の半
径。
Fig. 1 is a front view of an element showing an embodiment according to the present invention, Fig. 2 is an enlarged view showing the - cross section of Fig. 1, and Fig. 3 is a partially cutaway configuration diagram showing the main parts of the continuously variable transmission. , FIG. 4 is a front view showing a conventional element, and FIG. 5 is a cross-sectional view taken from FIG. 4 showing a driving state when misalignment occurs due to chamfering. 1...metal band, 2...element, 2b...pillar, 2c...shoulder, R...radius of chamfer.
Claims (1)
数配列された金属ブロツクからなるエレメント
により構成される駆動ベルトにおいて、 上記エレメントのピラーの両側面を、エレメ
ントの前側および後側のシヨルダー端部をそれ
ぞれ中心として所定の半径からなつ２つの曲線
で形成し、 上記２つの曲線の交点および上記曲線とピラ
ー前後の交点に、任意の半径で面取りを施して
なることを特徴とするベルト式無段変速機の駆
動ベルト。 (2) シヨルダー端部を中心とした所定の半径を、
ピラーの側面が上記中心に対し外方に位置する
上記ピラーの側面と上記シヨルダー端部との長
さとしたことを特徴とする実用新案登録請求の
範囲第１項記載のベルト式無段変速機の駆動ベ
ルト。[Claims for Utility Model Registration] (1) In a drive belt constituted by an element consisting of an endless metal band and a large number of metal blocks arranged in the circumferential direction of the metal band, both sides of the pillars of the element are , is formed by two curves with predetermined radii centered on the front and rear shoulder ends of the element, and chamfers are applied to arbitrary radii at the intersections of the two curves and the intersections of the above curves before and after the pillar. A drive belt for a belt-type continuously variable transmission that is characterized by the following characteristics: (2) A predetermined radius centered on the shoulder end,
The belt type continuously variable transmission according to claim 1, wherein the side surface of the pillar is located outward from the center, and the length is the length between the side surface of the pillar and the end of the shoulder. drive belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17726886U JPH058358Y2 (en) | 1986-11-17 | 1986-11-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17726886U JPH058358Y2 (en) | 1986-11-17 | 1986-11-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6382842U JPS6382842U (en) | 1988-05-31 |
| JPH058358Y2 true JPH058358Y2 (en) | 1993-03-02 |
Family
ID=31118311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17726886U Expired - Lifetime JPH058358Y2 (en) | 1986-11-17 | 1986-11-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH058358Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4570209B2 (en) * | 2000-06-20 | 2010-10-27 | 株式会社山本製作所 | CVT belt element and manufacturing method thereof |
| JP2011149539A (en) * | 2010-01-25 | 2011-08-04 | Mitsuboshi Belting Ltd | Belt |
-
1986
- 1986-11-17 JP JP17726886U patent/JPH058358Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6382842U (en) | 1988-05-31 |
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