JPH0537068Y2 - - Google Patents
Info
- Publication number
- JPH0537068Y2 JPH0537068Y2 JP8162486U JP8162486U JPH0537068Y2 JP H0537068 Y2 JPH0537068 Y2 JP H0537068Y2 JP 8162486 U JP8162486 U JP 8162486U JP 8162486 U JP8162486 U JP 8162486U JP H0537068 Y2 JPH0537068 Y2 JP H0537068Y2
- Authority
- JP
- Japan
- Prior art keywords
- head
- band members
- curvature
- belt
- radius
- 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
- 230000005540 biological transmission Effects 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Transmissions By Endless Flexible Members (AREA)
Description
本考案は、例えば自動車用のベルト式無段変速
機に使用されるＶベルト組立体に関し、詳しく
は、その構成部材である各エレメントが安定して
相互接触するようにその形状を改良したＶベルト
組立体に関する。
The present invention relates to a V-belt assembly used, for example, in a belt-type continuously variable transmission for automobiles, and more specifically to a V-belt whose shape has been improved so that its constituent elements are in stable contact with each other. Regarding the assembly.
自動車用の変速機として、Ｖ溝幅が可変制御さ
れることでＶベルトの巻付径がそれぞれ連続的に
変化する駆動プーリと従動プーリとの間に金属製
のＶベルト組立体を巻掛けた構造のベルト式無段
変速機が、従来一般に知られている（実開昭58−
76844号公報参照）。
上記Ｖベルト組立体は、無端帯状の薄い金属バ
ンドを多層に積層することで非伸縮性で可撓性の
ある構造とした左右一対のバンド部材と、このバ
ンド部材に保持されてその周方向に沿つて配列さ
れることで相互に接合してＶベルトの本体をなす
多数の金属板製のエレメントとで構成されてい
る。
ここで、各エレメントの形状は、特開昭55−
107147号公報や実開昭58−137148号公報等に示す
ように多種多様であるが、基本的には、プーリと
接触するＶ形の側面及び一対のバンド部材が巻掛
けられる左右のシヨルダ部を有して両バンド部材
の内周側に位置するボデーと、両バンド部材の外
周側に位置して左右のイヤー部が上記左右のシヨ
ルダー部に対向するヘツドｅと、両バンド部材の
間に位置して上記ボデーとヘツドとを連続するピ
ーラとを有する正面形状をなしている。
そして、例えばヘツドの正面中央部の係合突起
とヘツドの背面中央部の係合穴との係合により相
互に位置決めされると共に、ボデー上のピツチラ
インから内周側に形成されたクサビ形断面部によ
りヘツド側が相互に開いた状態に傾動してプーリ
に巻掛けられるようになつている（特公昭55−
6783号公報参照）。
As a transmission for automobiles, a metal V-belt assembly is wound between a driving pulley and a driven pulley, where the V-belt winding diameter changes continuously by variable control of the V-groove width. A belt-type continuously variable transmission with this structure has been known to the public (utility development in 1982-
(Refer to Publication No. 76844). The above-mentioned V-belt assembly consists of a pair of left and right band members that have a non-stretchable and flexible structure by stacking endless thin metal bands in multiple layers, and a pair of left and right band members that are held by the band members and extend in the circumferential direction. It is composed of a large number of metal plate elements that are arranged along the belt and joined together to form the main body of the V-belt. Here, the shape of each element is
There are many different types as shown in Publication No. 107147 and Japanese Utility Model Application Publication No. 58-137148, etc., but basically, the V-shaped side surface that contacts the pulley and the left and right shoulder portions around which the pair of band members are wound are used. a body located on the inner peripheral side of both band members; a head e located on the outer peripheral side of both band members with left and right ear portions facing the left and right shoulder portions; and a head e located between both band members. The head has a front shape including a peeler that connects the body and the head. For example, the engagement protrusion at the center of the front face of the head and the engagement hole at the center of the back of the head are mutually positioned, and the wedge-shaped cross section is formed from the pitch line on the body to the inner circumference side. This allows the head sides to be tilted open to each other so that they can be wrapped around the pulley.
(See Publication No. 6783).
しかしながら、第５図および第６図に示すよう
に、フアインブランキングで製作したエレメント
ａでは、表面ｂのうねりと、裏面ｃのうねりに曲
率の差があるため、各エレメントａが相互に接触
する場合、接点ｄ１，ｄ２，ｄ３で接したり、中
央のピラーに近い接点ｅ１，ｅ２で接することと
なる。
このため、Ｖベルト組立体のベルトラインに不
用意なズレが生じたり、Ｖベルト組立体の速度が
変化する場合には各エレメントが相互に傾いて不
安定な状態で接触するようになり、異常摩耗が発
生したり、捩れによる破損をひき起す等の問題が
ある。
そこで本考案は、フアインブランキングで製作
される各エレメントが常時安定して相互接触する
ように改良したＶベルト組立体を提供することを
目的とする。
However, as shown in Figures 5 and 6, in element a manufactured by fine blanking, there is a difference in curvature between the undulations on the front surface b and the undulations on the back surface c, so each element a comes into contact with each other. In this case, they will come into contact at contact points d1, d2, and d3, or at contact points e1 and e2 near the central pillar. For this reason, if the belt line of the V-belt assembly is accidentally misaligned or the speed of the V-belt assembly changes, each element will tilt to each other and come into contact with each other in an unstable state, causing abnormalities. There are problems such as wear and damage caused by twisting. SUMMARY OF THE INVENTION An object of the present invention is to provide an improved V-belt assembly in which the elements manufactured by fine blanking are always in stable contact with each other.
上記目的を達成するため、本考案は、非伸縮性
で可撓性のある左右一対のバンド部材に保持され
てその周方向に整列され、相互に接合してＶベル
トの本体のなす多数のエレメントであつて、プー
リと接触するＶ形の側面及び上記両バンド部材が
巻掛けられる左右のシヨルダ部を有して両バンド
部材の内周側に位置するボデーと、両バンド部材
の外周側に位置して左右のイヤー部が上記左右の
シヨルダー部に対向するヘツドと、両バンド部材
の間に位置して上記ボデーとヘツドとを連続する
ピーラとを有する平面形状をなし、かつヘツド一
側面の係合突起とヘツド他側面との係合穴との係
合により相互に位置決めされ、ボデー上のピツチ
ラインから内周側に形成されたクサビ形断面部に
より相互に傾動した状態でプーリに巻掛けられる
形状の多数のエレメントを備えたＶベルト組立体
において、上記各エレメントのボデーは、その片
面の左右に凸面を有し、反対面の左右に上記凸面
に対応する凹面を有する波形の横断面に形成し、
各エレメントが相互に接合する際、上記凸面が上
記凹面に嵌入してその頂部で接触するように上記
凹面の曲率半径を上記凸面の曲率半径より大きく
設定したことを手段としている。
In order to achieve the above object, the present invention provides a large number of elements held by a pair of non-stretchable and flexible band members on the left and right, aligned in the circumferential direction of the band members, and joined to each other to form the main body of the V-belt. a body located on the inner circumferential side of both band members and having a V-shaped side surface that contacts the pulley and left and right shoulder portions around which both the band members are wound; and a body located on the outer circumferential side of both band members. The left and right ear portions have a planar shape having a head facing the left and right shoulder portions, and a peeler located between both band members and connecting the body and the head, and an engagement portion on one side of the head. Shaped to be mutually positioned by engagement between the mating protrusion and the engagement hole on the other side of the head, and wound around the pulley in a mutually tilted state by a wedge-shaped section formed on the inner circumferential side from the pitch line on the body. In a V-belt assembly comprising a large number of elements, the body of each element is formed into a wave-shaped cross section having convex surfaces on the left and right sides of one side and concave surfaces corresponding to the convex surfaces on the left and right sides of the opposite side. ,
The radius of curvature of the concave surface is set to be larger than the radius of curvature of the convex surface so that when the elements are joined to each other, the convex surface fits into the concave surface and contacts at its top.
このような手段を採用して本考案のＶベルト組
立体は、駆動プーリと従動プーリとの間に巻掛け
られて動力伝達する使用状態において、各エレメ
ントはそのボデーの片面に形成された曲率半径の
小さい左右の凸面が、隣接する他エレメントのボ
デーの反対面に形成された曲率半径の大きい左右
の凹面にそれぞれ嵌入し、左右の各頂部の接点で
相互に接触するのであり、各エレメントは相互に
傾くことなく安定した接触状態を常時維持する。
Adopting such a means, the V-belt assembly of the present invention is constructed such that each element has a radius of curvature formed on one side of its body when used to transmit power by being wound between a driving pulley and a driven pulley. The left and right convex surfaces with a small radius of curvature fit into the left and right concave surfaces with a large radius of curvature formed on the opposite surfaces of the bodies of adjacent other elements, and come into contact with each other at the contact points of the left and right apexes, and each element Maintains stable contact at all times without tilting.
以下、本考案の一実施例を添付の図面に基づい
て具体的に説明する。
第１図において符号１で示すものは、例えば自
動車用のベルト式無段変速機の駆動プーリと従動
プーリとの間に巻掛けられて使用されるＶベルト
組立体を構成するエレメントであり、このエレメ
ント１は、無端帯状の薄い金属バンドを多層に積
層して構成した非伸縮性で可撓性のある左右一対
のバンド部材（図示省略）に保持されてその周方
向に整列され、相互に接合してＶベルトの本体を
なす、フアインブランキングによる板金製のもの
である。
前記エレメント１は、ボデー２の左右中凹部に
ピラー３を介してヘツド４が連続する平面形状で
あり、ボデー２には図示省略したプーリのＶ溝に
対応したＶ字形の側面２ａ，２ａおよび図示省略
した左右一対のバンド部材が巻掛けらられる左右
のシヨルダ部２ｂ，２ｂが形成されている。
また、ヘツド４の左右のイヤー部４ａ，４ａが
前記左右のシヨルダー部２ｂ，２ｂに対向するこ
とで、ピラー３の左右両側には前記バンド部材が
挿入される凹溝３ａ，３ａが形成されている。
そしてこのような各エレメント１におけるボデ
ー２は、その正面２ｃのピツチラインPLより内
周側が第３図に示すようなテーパ面２ｄに形成さ
れることでクサビ形断面をなしており、各エレメ
ント１はヘツド４側が開いた相互傾動状態で図示
省略した駆動プーリまたは従動プーリに巻掛けら
れるようになつている。
また、相互に接合する各エレメント１を位置決
めするように、エレメント１の正面２ｃにおける
ヘツド４の中央部には係合突起５が形成され、エ
レメント１の背面２ｅにおけるヘツド４の中央部
には上記係合突起５が遊嵌する係合穴（図示省
略）が形成されている。
ここで各エレメント１のボデー２におけるピツ
チラインPLより外周側部分は、第２図の横断面
図に示すように波形断面をなし、その正面２ｃに
は左右の凸面６，６及びこれらを滑らかに連続す
る凹面７が形成されると共に、その背面２ｅには
上記左右の凸面６，６に対応する凹面８，８及び
これらを滑らかに連続する上記を凹面７に対応し
て凸面９が形成されている。
前記ボデー２の正面２ｃに形成された左右の凸
面６の曲率半径Ｒ１は、ボデー２の背面２ｅに形
成された左右の凹面８，８の曲率半径Ｒ２より小
さく設定され、また凹面７の曲率半径ｒ１も凸面
９の曲率半径ｒ２より小さく設定されている。
以上のように構成された各エレメント１を備え
たＶベルト組立体は、図示省略したベルト式無段
変速機の駆動プーリと従動プーリとの間に巻掛け
られて動力伝達用に使用される。
ここで第４図に示すように、Ｖベルト組立体が
動力伝達する使用状態において、各エレメント１
はそのボデー２の正面２ｃに形成された曲率半径
Ｒ１の左右の凸面６，６が、隣接する他エレメン
ト１のボデー２の背面２ｅに形成された曲率半径
Ｒ２の左右の凹面８，８にそれぞれ嵌入し、左右
の各頂部の接点Ｐ１，Ｐ２でのみ相互に接触す
る。このため、各エレメント１は相互に傾くこと
なく安定した接触状態を常時維持する。
なお、各エレメント１のボデー２におけるピツ
チラインPLより内周側部分も前述と同様の波形
断面に形成してもよい。
Hereinafter, one embodiment of the present invention will be described in detail based on the accompanying drawings. In FIG. 1, the reference numeral 1 is an element constituting a V-belt assembly that is used by being wound between a driving pulley and a driven pulley of a belt-type continuously variable transmission for automobiles, for example. The element 1 is held by a pair of non-stretchable and flexible left and right band members (not shown), which are formed by stacking endless thin metal bands in multiple layers, aligned in the circumferential direction, and bonded to each other. The main body of the V-belt is made of fine blanked sheet metal. The element 1 has a planar shape in which a head 4 is continuous to the left and right middle recesses of the body 2 via a pillar 3, and the body 2 has V-shaped side surfaces 2a, 2a corresponding to the V grooves of the pulley (not shown) and 2a (not shown). Left and right shoulder portions 2b, 2b are formed around which a pair of left and right band members (not shown) are wound. Further, since the left and right ear parts 4a, 4a of the head 4 face the left and right shoulder parts 2b, 2b, grooves 3a, 3a into which the band members are inserted are formed on both left and right sides of the pillar 3. There is. The body 2 of each element 1 has a wedge-shaped cross section by forming a tapered surface 2d on the inner peripheral side from the pitch line PL of the front surface 2c as shown in FIG. It is adapted to be wound around a driving pulley or a driven pulley (not shown) in a mutually tilted state with the head 4 side open. Further, in order to position each element 1 to be joined to each other, an engaging protrusion 5 is formed at the center of the head 4 on the front side 2c of the element 1, and an engaging protrusion 5 is formed at the center of the head 4 on the back side 2e of the element 1. An engagement hole (not shown) into which the engagement protrusion 5 loosely fits is formed. Here, the outer circumferential portion of the body 2 of each element 1 from the pitch line PL has a wave-shaped cross section as shown in the cross-sectional view of FIG. A concave surface 7 is formed on the back surface 2e, and a concave surface 9 corresponding to the concave surface 7 is formed on the back surface 2e. . The radius of curvature R1 of the left and right convex surfaces 6 formed on the front surface 2c of the body 2 is set smaller than the radius of curvature R2 of the left and right concave surfaces 8, 8 formed on the rear surface 2e of the body 2, and the radius of curvature of the concave surface 7 r1 is also set smaller than the radius of curvature r2 of the convex surface 9. A V-belt assembly including each element 1 configured as described above is used for power transmission by being wound between a driving pulley and a driven pulley of a belt-type continuously variable transmission (not shown). Here, as shown in FIG. 4, in the operating state where the V-belt assembly transmits power, each element 1
The left and right convex surfaces 6, 6 with a radius of curvature R1 formed on the front surface 2c of the body 2 are respectively connected to the left and right concave surfaces 8, 8 with a radius of curvature R2 formed on the back surface 2e of the body 2 of the adjacent other element 1. They fit in and contact each other only at the contact points P1 and P2 on the left and right tops. For this reason, each element 1 always maintains a stable contact state without mutually tilting. Note that the portion of the body 2 of each element 1 on the inner circumferential side from the pitch line PL may also be formed to have the same wave-shaped cross section as described above.
以上説明したとおり本考案によれば、駆動プー
リと従動プーリとの間に巻掛けられて動力伝達す
るＶベルト組立体の使用状態において、各エレメ
ントはそのボデーの片面に形成された曲率半径の
小さい左右の凸面が、隣接する他エレメントのボ
デーの反対面に形成された曲率半径の大きい左右
の凹面にそれぞれ嵌入し、左右の各頂部の接点で
相互に接触する。
従つて本考案によれば、Ｖベルト組立体のベル
トラインに不用意なズレが生じたり、Ｖベルト組
立体の速度が変化する場合にも、各エレメントは
相互に傾くことなく安定した接触状態を常時維持
することができ、異常摩耗の発生や捩れによる破
損を未然に防止して耐久性を向上することができ
る。
As explained above, according to the present invention, when a V-belt assembly is in use that is wound between a driving pulley and a driven pulley to transmit power, each element has a small radius of curvature formed on one side of its body. The left and right convex surfaces fit into left and right concave surfaces having a large radius of curvature formed on opposite surfaces of the bodies of adjacent other elements, and come into contact with each other at the contact points of the left and right apexes. Therefore, according to the present invention, even if an unexpected shift occurs in the belt line of the V-belt assembly or the speed of the V-belt assembly changes, each element can maintain a stable contact state without mutually tilting. It can be maintained at all times, preventing abnormal wear and damage due to twisting, and improving durability.
第１図は本考案によるＶベルト組立体の一実施
例における各エレメントの正面図、第２図は第１
図の−線に沿う各エレメントのボデーの横断
面図、第３図は第１図の−線に沿う各エレメ
ントのボデーの縦断面図、第４図は一実施例にお
ける各エレメントの接触状態を示すボデーの横断
面図、第５図及び第６図は従来例における各エレ
メントの接触状態をそれぞれ示すボデーの横断面
図である。
１……エレメント、２……ボデー、２ａ……側
面、２ｂ……シヨルダ部、２ｃ……正面、２ｄ…
…テーパ面、２ｅ……背面、３……ピラー、３ａ
……凹溝、４……ヘツド、４ａ……イヤー部、５
……係合突起、６……凸面、７……凹面、８……
凹面、９……凸面。
FIG. 1 is a front view of each element in an embodiment of the V-belt assembly according to the present invention, and FIG.
FIG. 3 is a cross-sectional view of the body of each element taken along line - in FIG. 1, FIG. FIGS. 5 and 6 are cross-sectional views of the body showing the contact state of each element in a conventional example. 1... Element, 2... Body, 2a... Side, 2b... Shoulder part, 2c... Front, 2d...
...Tapered surface, 2e...Back surface, 3...Pillar, 3a
...Concave groove, 4...Head, 4a...Ear part, 5
...Engaging protrusion, 6...Convex surface, 7...Concave surface, 8...
Concave, 9...convex.
Claims (1)
に保持されてその周方向に整列され、相互に接合
してＶベルトの本体をなす多数のエレメントであ
つて、プーリと接触するＶ形の側面及び上記両バ
ンド部材が巻掛けられる左右のシヨルダ部を有し
て両バンド部材の内周側に位置するボデーと、両
バンド部材の外周側に位置して左右のイヤー部が
上記左右のシヨルダー部に対向するヘツドと、両
バンド部材の間に位置して上記ボデーとヘツドと
を連続するピーラとを有する平面形状をなし、か
つヘツド一側面の係合突起とヘツド他側面との係
合穴との係合により相互に位置決めされ、ボデー
上のピツチラインから内周側に形成されたクサビ
形断面部により相互に傾動した状態でプーリに巻
掛けられる形状の多数のエレメントを備えたＶベ
ルト組立体において、 上記各エレメントのボデーは、その片面の左右
に凸面を有し、反対面の左右に上記凸面に対応す
る凹面を有する波形の横断面に形成し、 各エレメントが相互に接合する際、上記凸面が
上記凹面に嵌入してその頂部で接触するように上
記凹面の曲率半径を上記凸面の曲率半径より大き
く設定したことを特徴とするＶベルト組立体。[Claims for Utility Model Registration] A large number of elements held by a pair of non-stretchable and flexible band members on the left and right, aligned in the circumferential direction thereof, and joined together to form the main body of the V-belt. , a body located on the inner circumferential side of both band members, having a V-shaped side surface that contacts the pulley and left and right shoulder portions around which both the band members are wound; The ear part has a planar shape having a head facing the left and right shoulder parts, and a peeler located between both band members and connecting the body and the head, and an engaging protrusion on one side of the head. A large number of heads are mutually positioned by engagement with engagement holes on the other side of the head, and are wound around a pulley in a mutually tilted state by a wedge-shaped section formed from the pitch line on the body to the inner periphery. In a V-belt assembly including elements, the body of each element has a convex surface on the left and right sides of one side, and a concave surface corresponding to the convex surface on the left and right sides of the opposite side. A V-belt assembly characterized in that the radius of curvature of the concave surface is set to be larger than the radius of curvature of the convex surface so that when the convex surfaces are joined to each other, the convex surface fits into the concave surface and contacts at the top thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8162486U JPH0537068Y2 (en) | 1986-05-28 | 1986-05-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8162486U JPH0537068Y2 (en) | 1986-05-28 | 1986-05-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62191946U JPS62191946U (en) | 1987-12-07 |
| JPH0537068Y2 true JPH0537068Y2 (en) | 1993-09-20 |
Family
ID=30933530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8162486U Expired - Lifetime JPH0537068Y2 (en) | 1986-05-28 | 1986-05-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0537068Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4505316B2 (en) * | 2004-11-26 | 2010-07-21 | 本田技研工業株式会社 | Belt for continuously variable transmission |
| JP2010266048A (en) * | 2009-05-18 | 2010-11-25 | Toyota Motor Corp | Transmission belt |
-
1986
- 1986-05-28 JP JP8162486U patent/JPH0537068Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62191946U (en) | 1987-12-07 |
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