JPS6224853Y2 - - Google Patents
Info
- Publication number
- JPS6224853Y2 JPS6224853Y2 JP1979070979U JP7097979U JPS6224853Y2 JP S6224853 Y2 JPS6224853 Y2 JP S6224853Y2 JP 1979070979 U JP1979070979 U JP 1979070979U JP 7097979 U JP7097979 U JP 7097979U JP S6224853 Y2 JPS6224853 Y2 JP S6224853Y2
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- belt
- main body
- modulus
- teeth
- 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
- 229920001971 elastomer Polymers 0.000 claims description 77
- 239000005060 rubber Substances 0.000 claims description 77
- 230000005540 biological transmission Effects 0.000 claims description 9
- 239000004744 fabric Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 10
- 239000010410 layer Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Description
【考案の詳細な説明】
本考案は動力伝導歯付ベルト、特に伝達能力が
高く、かつ耐熱性に優れた歯付ベルトに関するも
のである。[Detailed Description of the Invention] The present invention relates to a power transmission toothed belt, particularly a toothed belt with high transmission capacity and excellent heat resistance.
従来、公知の歯付ベルトは主体ゴム中に低伸
度、高強力の抗張体を埋設し、該抗張体の下面に
断面逆台形状の歯をその内周面に沿つて一定のピ
ツチで設けた構造が一般的である。 Conventionally known toothed belts have a low-elongation, high-strength tensile material embedded in the main rubber, and teeth with an inverted trapezoidal cross section are arranged on the lower surface of the tensile material at a constant pitch along the inner circumferential surface of the tensile material. The structure provided in is common.
そして、この種のベルトはその経済性の観点よ
り、以下に示す圧入成型法により製造される。即
ち、外周面上に軸に平行してベルトの歯型に対応
した凹溝を持つ円筒ドラム上に歯部カバー布を巻
き付け、該カバー布上に一定張力で抗張体コード
をスパイラル状に巻き付け、更に末加硫ゴムシー
ト、必要に応じ表面カバー布を積層する。次いで
加熱時に外側より加圧することにより抗張体コー
ドの上面に位置するゴムを該コードの間隙より歯
部形成溝に流入させ、ベルト長手方向に伸縮性を
有するカバー布を圧入しつつ歯を形成するもので
ある。 From the viewpoint of economy, this type of belt is manufactured by the press-in molding method described below. That is, a tooth cover cloth is wrapped around a cylindrical drum having concave grooves parallel to the shaft corresponding to the tooth shape of the belt on the outer peripheral surface, and a tensile material cord is spirally wound around the cover cloth with a constant tension. , further laminated with a vulcanized rubber sheet and a surface cover cloth if necessary. Next, by applying pressure from the outside during heating, the rubber located on the upper surface of the tensile cord flows into the tooth forming groove through the gap between the cords, and teeth are formed while a stretchable cover cloth is press-fitted in the longitudinal direction of the belt. It is something to do.
この方法により得られたベルトは、歯を構成す
るゴム質とベルト全体を構成するゴム質とは基本
的に同一配合ゴムを使用することが前提となる。
そして加熱時のゴムの流動性を利用することから
必然的に使用されるゴム質は制限される。 The belt obtained by this method is based on the premise that the rubber material constituting the teeth and the rubber material constituting the entire belt are basically the same compounded rubber.
Since the fluidity of rubber upon heating is utilized, the type of rubber that can be used is necessarily limited.
一方、歯付ベルトは元来、歯付プーリと噛み合
つて動力を伝達するベルトであり、第一義的に要
求される特性としてベルト歯がプーリ歯と正確に
噛み合うことが挙げられる。これを満足するため
ベルトは具体的に
(1) 使用される抗張体は低伸度、高強力の特性を
持つものであること、
(2) 歯溝底面にカバー布を介して抗張体を該布に
近接して位置せしめること、
(3) 歯の形状はプーリと干渉しない形状であるこ
と、
(4) 伝達効率より歯の変形性が少ないこと、
(5) ベルト歯とプーリ溝との噛み合いを正確に維
持するためにプーリのピツチ円上に沿つてベル
トの抗張体が略々一致すること、
などが必要な要件となる。 On the other hand, a toothed belt is originally a belt that transmits power by meshing with a toothed pulley, and the primary characteristic required is that the belt teeth mesh accurately with the pulley teeth. In order to satisfy this requirement, the belt is designed specifically for (1) the tensile material used to have low elongation and high strength, and (2) the tensile material to be used on the bottom of the tooth groove through a cover cloth. (3) The shape of the teeth should be such that it does not interfere with the pulley. (4) The deformability of the teeth should be less than the transmission efficiency. (5) The belt teeth and pulley grooves should be In order to maintain accurate meshing, the belt's tension members must approximately match along the pitch circle of the pulleys.
しかして、上記ベルトが具備すべき条件からす
れば、歯を形成するゴムは、ハイモジユラス特性
を持つこと、主体ゴムは逆に伸張性に富むゴム特
性を持つことが望まれる。 Accordingly, in view of the conditions that the belt should meet, it is desirable that the rubber forming the teeth have high modulus properties, and that the main rubber, conversely, have rubber properties that are rich in extensibility.
ところが、前述の如く従来ベルトは圧入成型法
を採用する関係から実際には歯ゴム、主体ゴム共
に流動特性のある同質のゴムが使用され、相異な
る特性を要求する両部の機能は必ずしも満足され
ていない。 However, as mentioned above, because conventional belts employ a press-in molding method, in reality, the tooth rubber and the main rubber are made of the same rubber with flow characteristics, and the functions of both parts, which require different characteristics, are not necessarily satisfied. Not yet.
しかも、むしろ現状においては、歯ゴム特性重
視の観点から流動性の許容される限度においてハ
イモジユラスゴムの使用がなされており、従つ
て、主体ゴムにとつて必要以上にハイモジユラス
ゴムが使用されていることになる。 Moreover, in the current situation, high-modulus rubber is used within the permissible limit of fluidity from the perspective of emphasizing tooth rubber properties, and therefore, high-modulus rubber is used more than necessary for the main rubber. This means that it has been done.
殊に、歯付ベルトは近時、その機能の優透性が
認められて多分野に使用されつつあり、自動車エ
ンジン駆動用にも採用が試みられている。就中、
自動車エンジン駆動用の場合、ベルトは絶えず自
動車エンジンより放出される高熱にさらされ、更
にコンパクト化の進展と相俟つて背面駆動に使用
されている。 In particular, toothed belts have recently been recognized for their superior functionality and are being used in a wide variety of fields, and attempts are being made to employ them in automobile engine drives as well. In particular,
When belts are used to drive automobile engines, they are constantly exposed to high heat emitted by the automobile engine, and as belts become more compact, they are used for rear drives.
かかる苛酷な条件下ではベルトを構成するゴム
は、高温により劣化が進み、柔軟性に乏しくなる
ばかりでなく、更に背面駆動のため外側に彎曲さ
れることからベルト主体表面に亀裂が入り易く、
ついにはベルト破損に至る故障現象が見られる。
これは、特に結晶性の高いCR，NBRなどの合成
ゴムが使用された場合、より顕著である。 Under such harsh conditions, the rubber that makes up the belt not only deteriorates due to high temperatures and becomes less flexible, but also tends to crack on the main surface of the belt because it is bent outwards due to the rear drive.
Failure phenomena that eventually lead to belt breakage are observed.
This is particularly noticeable when synthetic rubbers such as CR and NBR with high crystallinity are used.
なお、一方において、主体部と歯部とのゴム硬
度を変え、歯形部に硬質のゴムを用いた例が実公
昭35−32912号公報により提示されているが、一
般にモジユラスと硬度とは必らずしも一致するも
のではなく、単に硬度を高くしただけでは単性面
に問題を残し上記高温、背面駆動などの苛酷な条
件下での劣化破損を免れず、本考案の意図する効
果の達成には至らない。 On the other hand, an example in which the rubber hardness of the main body part and the tooth part is changed and hard rubber is used for the tooth part is presented in Japanese Utility Model Publication No. 35-32912, but in general, modulus and hardness are not necessarily the same. However, simply increasing the hardness will leave problems with the hardness and will inevitably cause deterioration and breakage under harsh conditions such as high temperatures and rear-facing drive, thereby achieving the intended effect of the present invention. It doesn't reach that point.
本考案は上述の如きベルトの実状に鑑み、その
欠点を解消し、高温環境下で、かつ背面駆動に耐
えて、なお長期のベルトライフを維持する動力伝
導歯付ベルトを提案することを目的とするもの
で、本質的に流動特性に優れ、かつハイモジユラ
ス特性を持つゴムで歯を構成し、伸張性の大きい
柔軟な低モジユラスゴムで主体部を構成すること
をその特徴とする。 In view of the above-mentioned actual state of belts, the purpose of this invention is to eliminate the drawbacks and propose a power transmission toothed belt that can withstand high-temperature environments and back-driving, and still maintain a long belt life. Its characteristics include that the teeth are made of a rubber that inherently has excellent fluidity and high modulus properties, and the main body is made of a flexible, low modulus rubber with high extensibility.
勿論、上記歯ゴムと主体ゴムは、ベルトの使用
特性によつて同一種類のゴムであることも、又、
異種ゴムであることもあり得る。 Of course, the tooth rubber and the main rubber may be the same type of rubber depending on the usage characteristics of the belt.
It may also be a different type of rubber.
以下、本考案ベルトの具体的内容を更に添付図
面に基づいて説明する。 Hereinafter, the details of the belt of the present invention will be further explained based on the attached drawings.
第１図、第２図は本考案に係る歯付ベルトの一
例を示し、１は歯付ベルト全体、２は主体部、３
は抗張体、４は歯、５はカバー布で、ベルト１は
主体部２の底面に位置する抗張体３の内面に沿つ
て複数の逆台形状の歯が一定ピツチで具備されて
いて、該歯４の表面及び歯と歯の間の溝底面を被
覆してカバー布５が被着されている。 1 and 2 show an example of a toothed belt according to the present invention, where 1 is the entire toothed belt, 2 is a main body part, and 3 is a toothed belt.
is a tensile member, 4 is a tooth, and 5 is a cover cloth, and the belt 1 is provided with a plurality of inverted trapezoid-shaped teeth at a constant pitch along the inner surface of the tensile member 3 located on the bottom surface of the main body portion 2. A cover cloth 5 is attached to cover the surfaces of the teeth 4 and the bottom surfaces of the grooves between the teeth.
上記の如き構成は、歯付ベルトの通常の構造で
あるが、本考案の特徴として歯４は基本的にハイ
モジユラスのゴムで構成される。この場合、ハイ
モジユラスゴムとは、以下の特性を持つものを意
味する。 The above structure is a normal structure of a toothed belt, but as a feature of the present invention, the teeth 4 are basically made of high modulus rubber. In this case, high modulus rubber means one having the following properties.
100％モジユラス（Kg／cm2）：55〜100
ゴム硬さ（ＨS） ：75〜82
また、一方、主体部２はその全体、又は少なく
ともベルト表面は低モジユラス特性を持つゴムで
構成されている。 100% modulus (Kg/ cm2 ): 55 to 100 Rubber hardness ( HS ): 75 to 82 On the other hand, the main body portion 2, or at least the belt surface, is made of rubber with low modulus characteristics. There is.
なお、主体部の表面のみに低モジユラスゴムが
位置する場合には、主体部の抗張体に近接する部
分には通常、歯ゴムと同一ゴムが位置している。 In addition, when the low modulus rubber is located only on the surface of the main body part, the same rubber as the tooth rubber is usually located in the part of the main body part close to the tensile body.
前記低モジユラスゴムはベルト主体部の厚さの
少なくとも30％以上ベルト表面を被覆することが
望ましく、これ以下の場合ではベルト主体が剛く
なり、背面ベンデイングへの耐性が失なわれ、か
つプーリのピツチ円上に抗張体を位置させること
が実質上、困難となる。 It is desirable that the low modulus rubber covers the belt surface by at least 30% of the thickness of the belt main body.If it is less than this, the belt main body will become stiff, lose resistance to back bending, and cause pulley pitch. It becomes substantially difficult to position the tensile body on a circle.
以上のような低モジユラス特性のゴムを主体部
又は少くとも30％以上の表面被覆に用いることに
よりベルト背面部の主体ゴムはプーリに巻き掛け
たとき伸張し、また、背面にテンシヨンプーリを
設けるか、ドリブンプーリを用いる場合には圧縮
する。 By using rubber with low modulus characteristics as described above for the main body part or at least 30% or more of the surface coating, the main rubber on the back side of the belt stretches when wrapped around the pulley, and a tension pulley is provided on the back side. Or, if a driven pulley is used, compress it.
ところでベルトはこの伸張、圧縮の繰り返しに
よりゴムの疲労が起るが、ゴムの疲労は一般に同
一系統のゴム種である場合、モジユラスが低い方
が耐クラツク性に富む傾向にある。 By the way, fatigue of the rubber occurs in belts due to repeated stretching and compression, and in general, when rubbers are made of the same type of rubber, the lower the modulus, the better the crack resistance tends to be.
一方、ゴムは例えばCRゴムの配合ゴムの場合
にには実走行時、ベルトの発熱、雰囲気温度等に
よつてゴムが劣化しモジユラスが上昇する傾向に
あり、走行時のプーリ径より生ずる伸張、圧縮の
量との関係で劣化が進むと背面ゴムにクラツクを
生ずるモジユラスの領域へと劣化が進行する。そ
こで少なくとも本考案の如く初期モジユラスを比
較的低いものとすることによりゴムの劣化を生ず
るとしてもクラツクを生ずるまでのモジユラスに
到達するまでの時間が長くかかり苛酷な条件にお
いても長時間、伝達能力を維持することになる。 On the other hand, in the case of rubber compounded with CR rubber, for example, during actual running, the rubber tends to deteriorate due to belt heat generation, ambient temperature, etc., and the modulus tends to increase. As the deterioration progresses in relation to the amount of compression, the deterioration progresses to a modulus region that causes cracks in the back rubber. Therefore, at least by setting the initial modulus to be relatively low as in the present invention, even if the rubber deteriorates, it takes a long time to reach the modulus before cracking, and the transmission ability can be maintained for a long time even under severe conditions. will be maintained.
次に前記ベルトにおける抗張体３としては、ポ
リエステル、芳香族ポリアミド、ガラス繊維、ワ
イヤー等、低伸度、高強力特性を持つ繊維コード
又はロープが用いられ、ヘリカル巻として適用さ
れる。 Next, as the tensile member 3 in the belt, a fiber cord or rope having low elongation and high strength properties such as polyester, aromatic polyamide, glass fiber, wire, etc. is used, and is applied as a helical winding.
しかして、上記本考案ベルトにおける最も基本
的な特徴は、歯をハイモジユラスゴム、主体部を
低モジユラスゴムで構成したことにあるが、しか
しながら、本考案ベルトが抗張体の上面に巻付け
積層されたゴム層を加熱下で円筒ドラムの歯溝に
圧入する公知の圧入成型法により製造される場合
には、必ずしもハイモジユラスゴムと低モジユラ
スゴムとの境界線は平面とならず、ベルトの歯溝
部で上方に凸状に彎曲し、歯の中央部抗張体下面
に低モジユラスゴムがＶ字状に流入し、抗張体上
部を低モジユラスゴム、歯部を前記低モジユラス
ゴムが抗張体下面に中央部で一部Ｖ字状に流入し
た部分を含むハイモジユラスゴムとなつたり、又
歯部へ低モジユラスゴムが前記同様一部Ｖ字状に
流入するが、主体部２において低モジユラスゴム
が表面側に形成され、ハイモジユラスゴムが残り
を形成する構成となつたり、更に低モジユラスゴ
ムの歯部への流入が全くなく、主体部において低
モジユラスゴムがその表面を構成し、一部にＶ型
に流下した形状を主体部内で残すだけで、他の主
体部及び歯部がハイモジユラスゴムとなつたりす
る種々の状態を呈する。 However, the most basic feature of the belt of the present invention is that the teeth are made of high modulus rubber and the main body is made of low modulus rubber. When the rubber layer is manufactured by a known press-in molding method in which the rubber layer is press-fitted into the tooth groove of a cylindrical drum under heat, the boundary line between the high-modulus rubber and the low-modulus rubber is not necessarily a flat surface, and the belt tooth The groove is curved upward in a convex shape, and low modulus rubber flows into the lower surface of the tensile member in the center of the tooth in a V-shape, the upper part of the tensile member is made of low modulus rubber, and the tooth part is made of low modulus rubber, which is located at the center of the lower surface of the tensile member. In the main body part 2, the high modulus rubber becomes a high modulus rubber including a part flowing in a V-shape, and in the tooth part, a low modulus rubber flows in a part in a V shape as described above, but in the main body part 2, the low modulus rubber is on the surface side. The high modulus rubber forms the rest, and the low modulus rubber does not flow into the teeth at all, and the low modulus rubber forms the surface of the main body part and flows down in a V shape in some parts. By simply leaving the shape within the main body, the other main body and the teeth can take on various states, such as becoming high-modulus rubber.
これらにおいてそのハイモジユラスゴム、低モ
ジユラスゴムの配置の程度は製造工程中で積層さ
れる両ゴム層の厚さによつて左右される。 In these, the degree of arrangement of the high modulus rubber and low modulus rubber depends on the thickness of both rubber layers laminated during the manufacturing process.
しかし、上記如何なる場合においても低モジユ
ラスゴム層の厚さは最も薄い部分で前記30％以上
であれば性能上、何らの影響を及ぼさない。 However, in any of the above cases, if the thickness of the low modulus rubber layer at its thinnest portion is 30% or more, it will not have any effect on performance.
なお、カバー布５は、公知の耐摩耗性のある、
例えばポリアミド繊維などの織布をベルトの長さ
方向にバイヤスに使用する外、既知の種々のカバ
ー布が使用可能である。 Note that the cover cloth 5 is made of a known abrasion-resistant material.
In addition to using woven fabrics such as polyamide fibers to bias the length of the belt, various known cover fabrics can be used.
第３図、第４図は圧入成型法により得られた本
考案ベルトの他の実施例であり、低モジユラスゴ
ムが主体２Ａの表面層のみに位置し、ハイモジユ
ラスゴムが主体２Ａの内面層及び歯４Ａを構成し
ている場合で、この例において本考案ベルト１Ａ
は主体２Ａの表面にカバー布６Ａが被着されてい
る。 Figures 3 and 4 show other embodiments of the belt of the present invention obtained by the press-in molding method, in which the low modulus rubber is located only in the surface layer of the main body 2A, and the high modulus rubber is located in the inner layer and the inner layer of the main body 2A. In this example, the belt 1A of the present invention constitutes the tooth 4A.
A cover cloth 6A is attached to the surface of the main body 2A.
本実施例においても、ハイモジユラスゴム、低
モジユラスゴムの特性は、前記の場合と同様であ
り、又、抗張体、カバー布も同様である。 In this example as well, the characteristics of the high modulus rubber and low modulus rubber are the same as in the above case, and the tensile material and the cover cloth are also the same.
上記の如く構成された本考案ベルトは、自動車
エンジン等の高熱環境下で、かつ背面駆動する苛
酷な条件の下で使用したときにおいても、充分、
その伝達能力を維持し、長時間のベルトライフを
維持して動力伝導の役割を充分発揮する。 The belt of the present invention constructed as described above can be used satisfactorily even when used in a high-temperature environment such as an automobile engine, and under severe rear-drive conditions.
It maintains its transmission ability, maintains a long belt life, and fully demonstrates its role in power transmission.
以上の如く本考案ベルトによれば、基本的に歯
をハイモジユラスゴムで構成し、主体の全体若し
くは少なくともその表面を低モジユラスゴムで構
成することにより、ベルトの高熱下における耐久
性が向上し、ベルト歯とプーリ歯との正確な噛み
合いが確保され、動力伝達能力を高めると共に、
歯の変形性が少なく、又、ベルト表面の亀裂発生
も歯がプーリと干渉することもなく、優れたベル
ト性能を維持する。 As described above, according to the belt of the present invention, the teeth are basically made of high modulus rubber and the entire main body or at least its surface is made of low modulus rubber, thereby improving the durability of the belt under high heat. Accurate meshing between belt teeth and pulley teeth is ensured, increasing power transmission ability, and
The teeth have little deformability, and there is no cracking on the belt surface and no interference between the teeth and the pulleys, maintaining excellent belt performance.
なお、本考案ベルトは自動車エンジン駆動用ベ
ルトとして極めて好適である。 The belt of the present invention is extremely suitable as a belt for driving an automobile engine.
第１図は本考案ベルトの長手方向部分断面図、
第２図は第１図Ｘ−Ｘ断面図、第３図は本考案ベ
ルトの変形実施例に係る長手方向部分断面図、第
４図は第３図Ｙ−Ｙ断面図である。
１，１Ａ……ベルト、２，２Ａ……主体、３，
３Ａ……抗張体、４，４Ａ……歯、５，５Ａ……
カバー布。
Figure 1 is a longitudinal partial sectional view of the belt of the present invention;
2 is a sectional view taken along the line XX in FIG. 1, FIG. 3 is a partial sectional view in the longitudinal direction of a modified embodiment of the belt of the present invention, and FIG. 4 is a sectional view taken along the YY line in FIG. 3. 1,1A...belt, 2,2A...main body, 3,
3A...Tensile body, 4,4A...Teeth, 5,5A...
cover cloth.
Claims (1)
長手方向に沿つて複数の断面逆台形状の歯を形成
した歯付ベルトにおいて、基本的に歯部分と、主
体部の全体若しくは主体部厚さの少なくとも表面
30％以上を異なるモジユラス特性を有するゴムで
構成し、主体部の全体若しくは少くとも30％以上
表面を被覆するゴムを前記歯部分ゴムに比し低ジ
ユラス特性を有するゴムとなすと共に、前記歯部
分ゴムを100％モジユラス55〜100Kg／cm2でゴム硬
さ（HS）75〜82のハイモジユラス特性を有する
ゴムとなしたことを特徴とする動力伝導歯付ベル
ト。 In a toothed belt in which a plurality of teeth with an inverted trapezoid cross section are formed along the belt longitudinal direction on the bottom surface of the main body part in which a tensile cord is embedded, basically the tooth part and the entire main body part or the main body thickness at least the surface of
30% or more of the rubber is composed of rubber having different modulus characteristics, and the rubber covering the entire surface of the main body part or at least 30% or more has a lower modulus characteristic than the tooth part rubber, and the tooth part A power transmission toothed belt characterized in that the rubber is made of 100% rubber having high modulus characteristics with a modulus of 55 to 100 kg/cm 2 and a rubber hardness (HS) of 75 to 82.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979070979U JPS6224853Y2 (en) | 1979-05-25 | 1979-05-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979070979U JPS6224853Y2 (en) | 1979-05-25 | 1979-05-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55170540U JPS55170540U (en) | 1980-12-08 |
| JPS6224853Y2 true JPS6224853Y2 (en) | 1987-06-25 |
Family
ID=29304694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1979070979U Expired JPS6224853Y2 (en) | 1979-05-25 | 1979-05-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6224853Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109154358A (en) * | 2016-05-25 | 2019-01-04 | 三之星机带株式会社 | Attached toothed band and its manufacturing method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1131268B (en) * | 1980-06-05 | 1986-06-18 | Pirelli | TOOTHED BELT |
| WO2017204250A1 (en) * | 2016-05-25 | 2017-11-30 | 三ツ星ベルト株式会社 | Toothed belt and manufacturing method therefor |
-
1979
- 1979-05-25 JP JP1979070979U patent/JPS6224853Y2/ja not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109154358A (en) * | 2016-05-25 | 2019-01-04 | 三之星机带株式会社 | Attached toothed band and its manufacturing method |
| US10864691B2 (en) | 2016-05-25 | 2020-12-15 | Mitsuboshi Belting Ltd. | Toothed belt and manufacturing method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55170540U (en) | 1980-12-08 |
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