JPS62204032A - V-belt for power transmission - Google Patents

V-belt for power transmission

Info

Publication number
JPS62204032A
JPS62204032A JP4482686A JP4482686A JPS62204032A JP S62204032 A JPS62204032 A JP S62204032A JP 4482686 A JP4482686 A JP 4482686A JP 4482686 A JP4482686 A JP 4482686A JP S62204032 A JPS62204032 A JP S62204032A
Authority
JP
Japan
Prior art keywords
belt
rubber layer
power transmission
tensile
rope
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.)
Granted
Application number
JP4482686A
Other languages
Japanese (ja)
Other versions
JPH0340255B2 (en
Inventor
Kaname Matsumura
要 松村
Akihiro Ueno
明宏 上野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsuboshi Belting Ltd
Original Assignee
Mitsuboshi Belting Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsuboshi Belting Ltd filed Critical Mitsuboshi Belting Ltd
Priority to JP4482686A priority Critical patent/JPS62204032A/en
Publication of JPS62204032A publication Critical patent/JPS62204032A/en
Publication of JPH0340255B2 publication Critical patent/JPH0340255B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE:To improve transmission capacity for a power and durability, by a method wherein a tensile material rope is buried between an stretch rubber layer and a compression rubber layer, and the inclination angles of side walls on both sides of a belt are changed. CONSTITUTION:A V-belt body 1 is formed with a stretch rubber layer 3 formed by natural rubber or synthetic rubber and a compression rubber layer formed by the same material, and a tensile material rope 2 having low elongation high power, formed by fiber, e.g., polyester, silicon carbide, is wound in a spiral manner and buried between the stretch rubber layer and the compression rubber layer. Side walls on both sides with which to form the V-belt body 1 are laterally asymmetrical to each other, and the two side walls 6 and 7 have inclination angles different from each other. Further, in a tensile material rope 2, three strands 8, each formed by bundling fiber filaments, are collected together for primary twist 5 to produce a strand 9, the three strands 9 are collected together to produce the tensile material rope 2, and the twist directions of the tensile material rope are coincided with each other toward a side wall part on the high inclination angle side on which a high side pressure is exerted.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、動力伝動用Vベルトに関し、特に、変速用と
してその効果が発揮される、■ベルト本体を形成する左
右両側壁部のうちいずれか一方の側壁部がVベルトの断
面の垂直の中心線に対する傾斜角度において特に大きく
設定されたことを特徴とする非対称の両側壁部をもって
形成されたVベルトに関する。
Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a V-belt for power transmission, and in particular, the present invention relates to a V-belt for power transmission, and in particular, to which one of the left and right side walls forming the belt body exhibits its effect for speed change. The present invention relates to a V-belt formed with asymmetrical side wall portions, in which one side wall portion is set at a particularly large inclination angle with respect to the vertical center line of the cross section of the V-belt.

(従来の技術) 変速比を大きく設定することができ、かつ強力な動力の
伝達能力を有するVベルトの一つとして、ベルト本体を
形成する左右両側壁部の傾斜角度を故意に変化せしめた
、所謂非対称形変速Vベルトが、広く使用されている。
(Prior art) As a type of V-belt that can set a large gear ratio and has a strong power transmission ability, the inclination angle of the left and right side walls forming the belt body is intentionally changed. So-called asymmetric variable speed V-belts are widely used.

しかし、この非対称形変速用Vベルトは、両側壁部の傾
斜角度の相違により、第5図をもって示すようにVベル
トσυをVプーリに巻掛けた折ベルト走行時、Vベルト
にはプーリからその側壁部に対し直角にNなる側圧がか
かると、傾斜角の大きな右側壁部面には、N(S伯β十
μC(Isβ)の応力が、又傾斜角の小さな左側壁部q
QにはN(sInα十μ匪α)の応力かそれぞれ動き(
但しμは摩擦係数を、  示す)、■ベルト本体αυ内
に埋設せしめた抗張体ロープ@のうち、傾斜角度の大き
い右側壁部αηに」比較的近接して位置するロープには
、特に強い応力が働き、すなわち、ベルト本体Ql)の
表面にて矢印の長さ量に示すように、ベルト全体には不
均等な力が働らき走行初期の段階にあってはVベルトの
転覆の発生をみたり、又ベルトの走行中には抗張体のホ
ップアウト、抗張体の切断、ベルト本体にあって抗張体
ロープの周辺に亀裂が発生するなど、非対称形Vベルト
には特有の欠陥が内在している。
However, in this asymmetrical transmission V-belt, due to the difference in the inclination angle of both side walls, when the V-belt συ is wound around the V-pulley and runs as a folded belt, as shown in FIG. When a lateral pressure of N is applied perpendicularly to the side wall, a stress of N (S x β 0 μC (Is β) is applied to the right side wall with a large inclination angle, and a stress of N (S x β 0 μC (Is β) is applied to the left side wall q with a small inclination angle.
Q has a stress of N(sInα10μ匪α) or a movement (
However, μ indicates the coefficient of friction), ■Among the tensile ropes buried within the belt body αυ, the ropes located relatively close to the right side wall αη with a large inclination angle are particularly strong. Stress acts on the surface of the belt body Ql), as shown by the length of the arrow, an uneven force acts on the entire belt, and in the early stages of running, the V-belt may overturn. Additionally, asymmetrical V-belts have some defects such as hop-out of the tensile member, breakage of the tensile member, and cracks around the tensile member rope in the belt body while the belt is running. is inherent.

(発明が解決しようとする問題点) 拳発朔→この種の非対称形Vベルトに内在する問題点の
解消を目的として、種々の発明が提案されている。例え
ば米国特許第3865967号明細書か開示され、さら
に本米国特許明細書にて開示された発明に内在する欠点
を指摘され、同明細書記載の発明を改善せしめた発明と
して特開昭47−13860号公報が開示されている。
(Problems to be Solved by the Invention) Various inventions have been proposed for the purpose of solving the problems inherent in this type of asymmetrical V-belt. For example, U.S. Pat. A gazette has been published.

しかし同公開公報に開示されたこの種の伝動ベルトは、
ベルトの作成が困難で、成形工数が多岐に亘り、結果的
にベルトをしてコスト高なものとしている。
However, this type of power transmission belt disclosed in the same publication,
It is difficult to make the belt, and the number of steps involved in forming it is large, resulting in a high cost belt.

本発明は、非対称の1対の側壁部を有する動力伝動用V
ベルトにおいて、同ベルト内にてベルト幅方向に直線上
に並列されて埋蔵された抗張体ロープの撚り状態とベル
トを形成する左右1対の側壁部のうち、ベルトの断面の
垂直中心線に対する傾斜角度の太き側に位置する傾斜側
壁部との関連構成にて、即ちベルトの構成において特別
な応力対抗部材などの付加材を用いることなく、又埋設
された抗張体ロープの配列、配置などに特別な考慮を払
うことなく、この種のベルトに内在する問題点を簡易に
除去しつる動力伝動用Vベルトを提供することを目的と
するものである。
The present invention provides a power transmission V having a pair of asymmetric side walls.
In the belt, the twisted state of the tensile ropes buried in a straight line in the belt width direction and the vertical center line of the cross section of the belt among the pair of left and right side walls forming the belt. In the configuration related to the inclined side wall part located on the thick side of the inclination angle, that is, in the belt configuration, without using additional materials such as special stress countering members, and the arrangement and arrangement of the buried tensile rope. It is an object of the present invention to provide a V-belt for power transmission that easily eliminates the problems inherent in this type of belt without paying special consideration to the above.

(問題点を解決するための手段) この目的を達成させるために、本発明は次のような構成
としている。すなわち、本発明に係る動力伝動用Vベル
トは、伸張ゴム層と圧縮ゴム層間に抗張体ロープを埋設
せしめ、かつベルトの左右両側壁部の傾斜角度を異にし
た非対称形のVベルトにおいて、該抗張体ロープは撚り
ロープをも、っ大きい側壁部側に向って、この抗張体ロ
ープの撚り方向を一致せしめたことを特徴とする構成か
らなる。
(Means for Solving the Problems) In order to achieve this object, the present invention has the following configuration. That is, the V-belt for power transmission according to the present invention is an asymmetrical V-belt in which a tensile rope is embedded between a stretch rubber layer and a compressed rubber layer, and the left and right side walls of the belt have different inclination angles. The tensile rope has a structure characterized in that the twisted ropes are also twisted in the same direction toward the larger side wall portion.

(作 用) 以上の構成からなる本発明にかかる非対称形を呈する動
力伝動用Vベルトを■プーリに巻装し、これを走行せし
めると、Vベルト両側壁部の傾斜角度の相違によるベル
ト幅方向の不均一な応力分布とベルトに埋設された抗張
体ロープの撚りが、より強く撚り方向に作用せんとする
力によって生ずるベルト幅方向の応力分布とがつりあっ
て、ベルトおよびベルト内に埋設された抗張体ロープの
アンバランスがなくなり、動力の伝達能力が増大し、か
つその耐久性の向上をこの楓のベルトに比較的簡易に求
めることができた。
(Function) When the V-belt for power transmission exhibiting an asymmetrical shape according to the present invention having the above-mentioned configuration is wound around a pulley and made to run, the belt width direction due to the difference in inclination angle of both side walls of the V-belt. The uneven stress distribution of the belt and the stress distribution in the belt width direction caused by the stronger force acting in the twisting direction of the twisted tensile rope embedded in the belt balance the belt and the stress distribution in the belt width direction. The unbalance of the tensile rope was eliminated, the power transmission capacity increased, and the durability could be improved in this maple belt relatively easily.

(実施例) つぎに本発明に係る動力伝動用Vベルトの具体的実施例
を図面を用いて説明する。
(Example) Next, a specific example of the V-belt for power transmission according to the present invention will be described with reference to the drawings.

第1図は本発明に係るコグ付Vベルトの一部の斜視図、
第2図は第1図の横断面図である。
FIG. 1 is a perspective view of a part of the cogged V-belt according to the present invention;
FIG. 2 is a cross-sectional view of FIG. 1.

図中、1はVベルト本体で、NR(天然ゴム)。In the figure, 1 is the V-belt body, which is made of NR (natural rubber).

5BR(スチレンブタジェンゴム)、CR(クロロプレ
ンゴム)、NBRにトリルゴム)などの単一材、又はこ
れらを適宜ブレンドしたゴムからなる伸張ゴム層(3)
と、その下方に位置する前記伸張ゴム層(4)と同材質
からなる圧縮ゴム層(4)にて構成され、これら伸張ゴ
ム層(3)と圧縮ゴム層(4)間には綿1人絹などの天
然繊維、ポリエステル、ナイロン、芳香族ポリアミド(
商品名ケブラー)などの合成繊維、又はガラス、炭素、
炭化珪素などの無機繊維からなる低伸度高強力の抗張体
ロープ(2)がスパイラ状にベルト局長方向に巻かれて
埋設され、ベルトの略全幅部をカバーするように並設さ
れている。又圧縮ゴム層(4)の下面には一定のピッチ
にてベルト幅方向番このびるコグ(5)群が形成され、
必要に応じて、該伸張ゴム層(3)および圧縮ゴム層(
4)の各表面にはバイアス帆布、広角度帆布(図示省略
)が被覆されている。そして本Vベルト本体(1)を形
成する両側壁部は左右非対称形で、それぞれ対応する左
右両側壁部(6)(7)はベルトの断面の垂直の中心線
E−E線およびF−F線に対し各々傾斜角度αおよびβ
を有し、第2図における右側壁部(7)は左側壁部(6
)よりも大きい傾斜角度を有し、即ち第1図にて矢印C
をもって示すベルト進行方向に対して、右側壁部(7)
が大きく傾斜(αくβ)している。
Stretch rubber layer (3) made of a single material such as 5BR (styrene butadiene rubber), CR (chloroprene rubber), NBR and tolyl rubber), or a rubber that is an appropriate blend of these materials.
and a compressed rubber layer (4) made of the same material as the stretch rubber layer (4) located below, and a piece of cotton is placed between the stretch rubber layer (3) and the compressed rubber layer (4). Natural fibers such as silk, polyester, nylon, aromatic polyamides (
Synthetic fibers such as (trade name: Kevlar), glass, carbon,
A low-elongation, high-strength tensile rope (2) made of inorganic fibers such as silicon carbide is wrapped in a spiral shape in the direction of the belt length and buried, and is laid in parallel so as to cover almost the entire width of the belt. . Further, on the lower surface of the compressed rubber layer (4), a group of cogs (5) extending in the width direction of the belt are formed at a constant pitch.
If necessary, the stretch rubber layer (3) and the compression rubber layer (
4) Each surface is covered with a bias canvas and a wide angle canvas (not shown). Both side walls forming the main body (1) of the V-belt are left and right asymmetrical, and the corresponding left and right side walls (6) and (7) are connected to the vertical centerline EE line of the belt cross section and F-F. Inclination angles α and β, respectively, with respect to the line
The right side wall (7) in Fig. 2 is the left side wall (6).
), i.e. arrow C in FIG.
The right side wall (7) with respect to the belt traveling direction indicated by
has a large slope (α and β).

本発明において、その特徴をなす構成部は非対称の左右
両側壁との間に重要な関連を有する前記抗張体ロープ(
2)の存在である。即ち第3図にて示す本抗張体ロープ
(2)は、第2図におけるベルト切断面にて露出した抗
張体ロープ(2)の横断面図にて、繊維フィラメントを
集束せしめたストランド(8)を3本集めて矢印入方向
に下撚り数0.4〜2.0回/画、下撚り係数0.8〜
2.0で下撚りして子なわ(9)を形成し、ついでこの
子なわ(9)を3本集めて前記下撚りと同方向即ち矢印
N方向に上撚り数0.5〜2.5回、/a、上撚り係数
1.6〜4.0で上撚りして、Z撚りの抗張体ロープ(
2)をうる。
In the present invention, the characteristic component is the tensile rope (
2) exists. That is, the present tensile rope (2) shown in FIG. 3 has strands (2) of fiber filaments bundled together in a cross-sectional view of the tensile rope (2) exposed at the cut surface of the belt in FIG. 8) Gather 3 strands and twist in the direction of the arrow 0.4 to 2.0 times/stroke, and twist coefficient 0.8 to
2.0 to form a child rope (9), then collect three child ropes (9) and give a final twist of 0.5 to 2.5 in the same direction as the first twist, that is, in the direction of arrow N. Z-twisted tensile rope (
Obtain 2).

なお、この折の撚り係数は、通常T、F = 0.08
48汀・Tで算出される(但し、D:ロープの総デニー
ル数、T:センチ当りの撚り回数)。
Note that the twist coefficient at this time is usually T, F = 0.08
It is calculated as 48 strands/T (where D: the total denier of the rope, T: the number of twists per centimeter).

又前記具体的数値をもって開示された各子なわ(9)の
構成本数、ストランド(8)の集束本数は抗張体ロープ
(2)の太さによって、略定まるもので、夫々のケース
に応じ、これら数値は変更され、決して固定的なもので
はない。
In addition, the number of constituent ropes (9) and the number of bundled strands (8) disclosed with the above-mentioned specific values are approximately determined by the thickness of the tensile rope (2), and depending on each case, These numbers are subject to change and are by no means fixed.

なお、前記抗張体ロー:f(2)の所定の範囲内の具体
的数値をもって開示した撚り数および撚り係数にあって
前記各範囲の下限値より小さい場合にはロープ(2)は
ほつれ易くなり、又反対に前記各範囲の上限値より大き
く設定した場合には、ロープの加工、ベルトの成形加工
が困難なものとなり、かつベルトの屈曲疲労性が悪くな
る。
In addition, if the number of twists and twist coefficient disclosed with specific values within the predetermined range of the tensile member law: f(2) are smaller than the lower limit of each of the above ranges, the rope (2) is likely to fray. On the other hand, if it is set larger than the upper limit of each of the above ranges, it becomes difficult to process the rope and form the belt, and the bending fatigue resistance of the belt deteriorates.

さらに、上記特性を有する抗張体ロープ(2)のベルト
成形加工時のベルト周方向へのスパイラル状の巻き方向
は、傾斜角度の大きい側の側壁部から傾斜角度の小さい
側の側曳部方向へと、より具体的には第2図にあってB
矢印にて示すように、右側壁面(7)から左側壁面(6
)方向へと順次巻かれている0 又、本発明に係る両側壁面の傾斜角度を異にする非対称
形のVベルトにあって・、常にこの種のVベルトをVプ
ーリに巻装した折強い側圧をうける傾斜角度の大きな側
の側壁部に向って、抗張体ロープの撚り方向を一致せし
めていることを特徴とするものである。
Furthermore, the direction in which the tensile rope (2) having the above characteristics is spirally wound in the circumferential direction of the belt during the belt forming process is from the side wall part on the side with a large inclination angle to the side pulling part on the side with a small inclination angle. More specifically, in Figure 2, B
As shown by the arrow, from the right wall surface (7) to the left wall surface (6
) direction, the asymmetrical V-belt according to the present invention has different inclination angles on both side walls. The present invention is characterized in that the direction in which the tensile rope is twisted is made to match toward the side wall portion having a large inclination angle and subject to lateral pressure.

第4図は、他の実施例を示す第2図に相当する図で、V
ベルト本体(1)′を構成する抗張体ロープ(2y伸張
ゴム)t (a)’および圧縮ゴム層(4yの一体構成
は第1図および第2図を中心にすでに詳述したとおりで
あるが、Vベルト本体(1yを形成する左右両側壁部(
6)’(7)’は第2図に示すVベルトと相違し、左右
側壁部(6γ(77のベルト断面の垂直の中心線E−E
線、F−F線に対する両側壁部の傾斜角度、即ち左側壁
部(6yの傾斜角度αが、右側壁部(7yの傾斜角度β
より大きく設定されており、これに伴い本Vベルト本体
(1γを構成する抗張体ロープC21の撚り方向が第3
図にて矢印AおよびA′にて示した方向とは逆方向に撚
ってなるS撚りロープであることが特徴で、即ち傾斜角
度の大きい側壁部(67に対して抗張体ロープの撚り方
向を一致せしめている。
FIG. 4 is a diagram corresponding to FIG. 2 showing another embodiment, and shows V
The integral structure of the tensile rope (2y stretch rubber) t(a)' and the compressed rubber layer (4y) constituting the belt body (1)' is as already described in detail with reference to FIGS. 1 and 2. However, the left and right side walls forming the V-belt body (1y)
6)'(7)' is different from the V-belt shown in FIG.
The inclination angle of both side walls with respect to the line F-F, that is, the inclination angle α of the left side wall (6y) is the inclination angle β of the right side wall (7y).
As a result, the twisting direction of the tensile rope C21 constituting the V-belt main body (1γ) is
It is characterized by being an S-twisted rope twisted in the opposite direction to the directions indicated by arrows A and A' in the figure. It matches the direction.

又本発明は、左右両側壁部の傾斜角度の相違およびこれ
に対応してS撚り、Z撚りの選択、を誤まらない限り、
ベルト本体を構成する圧縮ゴム層の下面に設けたコグ(
5)部を欠く、プレンタイプの変速Vベルトにも適用さ
れる。
In addition, the present invention provides that, as long as the difference in the inclination angle of the left and right side wall portions and the selection of S twist and Z twist corresponding to this are not mistaken,
A cog (
5) It is also applicable to a plain type variable speed V-belt that lacks a section.

(発明の効果) 本発明は、ベルトの左右側壁部の傾斜角度が相違する非
対称形のVベルトにおいて、■ベルト本体内に埋設され
た抗張体として、特に撚りロープを用い、かつこの撚り
ロープは、この種のベルトをプーリに巻装した折により
強い側圧を受ける傾斜角の大きい側壁部に対して、その
撚り方向を一致せしめ、より大きい負荷が作用する折に
側壁部方向に、さらに強い撚り力が付与されるように抗
張体ロープの撚り方向を選択することによって、ベルト
両側壁部の傾斜角度の違いによるベルト幅方向に作用す
る不均一な応力分布と抗張体ロープに作用する撚りのよ
り強力な撚り方向への力によって生ずるベルト幅方向の
応力分布が均衡して、ベルトの抗張体ロープおよびベル
ト自体のアンバランスが解消され、この種のベルトによ
り強く求められる動力伝達能力が大きく、かつ耐久性も
十分確保されたVベルトを得ることができた。
(Effects of the Invention) The present invention provides an asymmetrical V-belt in which the left and right side walls of the belt have different inclination angles. When this type of belt is wound around a pulley, the twisting direction is made to match the side wall part with a large inclination angle, which is subjected to strong lateral pressure, and when a larger load is applied, the twisting direction is even stronger in the direction of the side wall part. By selecting the twisting direction of the tensile rope so that twisting force is applied, uneven stress distribution acting on the belt width direction due to the difference in the angle of inclination of both side walls of the belt and acting on the tensile rope can be avoided. The stress distribution in the belt width direction caused by the stronger force in the twisting direction of the twist is balanced, eliminating the unbalance of the belt's tensile rope and the belt itself, and achieving the power transmission ability that is highly sought after for this type of belt. It was possible to obtain a V-belt with a large diameter and sufficient durability.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明に係るコグ付Vベルトの一部の斜視図、
第2図は第1図に示すVベルトの横断面図、第3図は第
2図に示すベルトの切断面に露出した抗張体ロープの横
断面図、第4図は他の実施例を示す第2図に相当する図
、第5図はこの種の非対称形Vベルト走行時に作用する
側圧の負荷説明図である。 図中、1,1′はベルト本体、2,2′は抗張体ロープ
、3,3′は伸張ゴム層、4,4′は圧縮ゴム層、6.
6′は左側壁部、7,7′は右側壁部、8はストランド
、9は子なわを示す。 自発手続補正書 昭和62年 5月78日 1事件の表示   特願昭1./−111!g2A号2
 発明←憎汁の名称動力伝動用Vベルト事件との関係 
 出願人 5補正命令のH付 昭和  年  月  日 6 補正により増加する発明の数 7補IEの内容 fllJ M。おおり。 7、補正の内容 明細書の一部を下記のとおり補正します。 (1)  第7頁第13の「働らき」を「働き」に改め
る。 (2)第5頁第7行の「太き側」を「大きい側」に改め
る。 (3)第7頁第13行の「スパイラ状」を「スパイラル
状」に改める。 (4)第7頁第1g行の「広角度帆布」の後に「\ウー
リー帆布等の高伸長帆布」と加入する。
FIG. 1 is a perspective view of a part of the cogged V-belt according to the present invention;
FIG. 2 is a cross-sectional view of the V-belt shown in FIG. 1, FIG. 3 is a cross-sectional view of the tensile rope exposed at the cut surface of the belt shown in FIG. 2, and FIG. 4 is a cross-sectional view of the V-belt shown in FIG. 2. FIG. 5, which corresponds to FIG. 2, is a load explanatory diagram of the lateral pressure that acts when this type of asymmetrical V-belt runs. In the figure, 1 and 1' are the belt body, 2 and 2' are the tensile ropes, 3 and 3' are the stretch rubber layers, 4 and 4' are the compression rubber layers, and 6.
6' is a left side wall part, 7 and 7' are right side wall parts, 8 is a strand, and 9 is a rope. Spontaneous procedure amendment May 78, 1988 1 case indication Patent application Showa 1. /-111! g2A No. 2
Invention ← Name of hatred Relationship with V-belt incident for power transmission
Applicant 5 Amendment Order with H Date 6, Showa Year Number of Inventions Increased by Amendment 7 Contents of Supplementary IE fllJ M. Oori. 7. Part of the detailed statement of amendments will be amended as follows. (1) “Work” on page 7, item 13 will be changed to “work”. (2) Change "thick side" to "large side" in line 7 of page 5. (3) "Spiral shape" on page 7, line 13 has been changed to "spiral shape." (4) On page 7, line 1g, after "wide angle canvas" add "\high elongation canvas such as woolly canvas".

Claims (1)

【特許請求の範囲】 1、伸張ゴム層と圧縮ゴム層間に抗張体ロープを埋設せ
しめ、かつベルトの左右側壁部の傾斜角度を異にした非
対称形のVベルトにおいて、該抗張体ロープは撚りロー
プをもって構成されており、ベルトの左右側壁部のうち
、傾斜角度の大きい側壁部側に向って、この抗張体ロー
プの撚り方向を一致せしめたことを特徴とする動力伝動
用Vベルト。 2、前記抗張体ロープの撚りは、上撚りおよび下撚りと
もに同一方向である特許請求の範囲第1項記載の動力伝
動用Vベルト。 3、前記抗張体ロープの撚りは上撚り数0.5〜2.5
回/cm、下撚り数0.4〜2.0回/cmの範囲にあ
る特許請求の範囲第1項又は第2項記載の動力伝動用V
ベルト。 4、前記抗張体ロープの撚りは、上撚り係数1.6〜4
.0、下撚り係数0.8〜2.0の範囲にある特許請求
の範囲第1項〜3項から選ばれる1つの項に記載の動力
伝動用Vベルト。 5、前記抗張体ロープのベルト周方向へのスパイラル状
の巻き方向は、傾斜角度の大きい側壁部側より、傾斜角
度の小さい側壁部側へと順次巻かれている特許請求の範
囲第1項〜第4項から選ばれる1つの項に記載の動力伝
動用Vベルト。 6、前記抗張体ロープは綿、人絹などの天然繊維、ポリ
エステル、ナイロン、芳香族ポリアミドなどの合成繊維
、ガラス、炭素、炭化珪素などの無機繊維よりなる群か
ら選ばれた繊維をもって構成されている特許請求の範囲
第1項〜第5項から選ばれる1つの項に記載の動力伝動
用Vベルト。
[Claims] 1. In an asymmetrical V-belt in which a tensile rope is embedded between a stretched rubber layer and a compressed rubber layer, and the left and right side walls of the belt have different inclination angles, the tensile rope is A V-belt for power transmission, characterized in that the tensile rope is made up of twisted ropes, and the direction of twisting of the tensile ropes is made to match toward the sidewall portion having a larger inclination angle among the left and right sidewall portions of the belt. 2. The V-belt for power transmission according to claim 1, wherein the tensile rope is twisted in the same direction in both the upper twist and the lower twist. 3. The number of twists of the tensile rope is 0.5 to 2.5.
V for power transmission according to claim 1 or 2, which has a number of twists/cm, and a number of twists in the range of 0.4 to 2.0 times/cm.
belt. 4. The twisting of the tensile rope has a twist coefficient of 1.6 to 4.
.. 0, and a pre-twist coefficient in the range of 0.8 to 2.0. 5. Claim 1, wherein the tensile rope is spirally wound in the circumferential direction of the belt from the side wall portion having a large inclination angle to the side wall portion having a small inclination angle. - V-belt for power transmission according to one item selected from item 4. 6. The tensile rope is made of fibers selected from the group consisting of natural fibers such as cotton and human silk, synthetic fibers such as polyester, nylon, and aromatic polyamide, and inorganic fibers such as glass, carbon, and silicon carbide. A V-belt for power transmission according to one of claims 1 to 5.
JP4482686A 1986-03-01 1986-03-01 V-belt for power transmission Granted JPS62204032A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4482686A JPS62204032A (en) 1986-03-01 1986-03-01 V-belt for power transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4482686A JPS62204032A (en) 1986-03-01 1986-03-01 V-belt for power transmission

Publications (2)

Publication Number Publication Date
JPS62204032A true JPS62204032A (en) 1987-09-08
JPH0340255B2 JPH0340255B2 (en) 1991-06-18

Family

ID=12702257

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4482686A Granted JPS62204032A (en) 1986-03-01 1986-03-01 V-belt for power transmission

Country Status (1)

Country Link
JP (1) JPS62204032A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020108828A1 (en) * 2018-11-28 2020-06-04 Contitech Antriebssysteme Gmbh Flexible drive means for a flexible drive

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020108828A1 (en) * 2018-11-28 2020-06-04 Contitech Antriebssysteme Gmbh Flexible drive means for a flexible drive

Also Published As

Publication number Publication date
JPH0340255B2 (en) 1991-06-18

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