JPH0312994Y2 - - Google Patents
Info
- Publication number
- JPH0312994Y2 JPH0312994Y2 JP1983043682U JP4368283U JPH0312994Y2 JP H0312994 Y2 JPH0312994 Y2 JP H0312994Y2 JP 1983043682 U JP1983043682 U JP 1983043682U JP 4368283 U JP4368283 U JP 4368283U JP H0312994 Y2 JPH0312994 Y2 JP H0312994Y2
- Authority
- JP
- Japan
- Prior art keywords
- belt
- tip
- cold
- protrusion
- short fibers
- 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 60
- 239000000835 fiber Substances 0.000 claims description 35
- 150000001875 compounds Chemical class 0.000 claims description 9
- 238000011156 evaluation Methods 0.000 description 9
- 230000002159 abnormal effect Effects 0.000 description 6
- 238000005452 bending Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 229920000742 Cotton Polymers 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000010058 rubber compounding Methods 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Landscapes
- Belt Conveyors (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は多突条ベルトの改良に関するものであ
る。[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an improvement of a multi-protrusion belt.
（従来の技術）
従来、ベルト基帯に対してベルト長手方向に複
数の突条が突設されてなる多突条ベルトが、伝動
ベルトとして、特にスペース面において制約を受
ける自動車用エンジンなどにおいて汎用され、近
年、その使用条件が益々苛酷になりつつある。(Prior Art) Conventionally, multi-protrusion belts in which a plurality of protrusions are provided protruding from the belt base band in the longitudinal direction of the belt have been widely used as power transmission belts, especially in automobile engines where space is limited. However, in recent years, the conditions under which they are used have become increasingly severe.
前記使用条件としては、例えば自動車用エンジ
ンにおいて、いわゆるリバース屈曲が要求される
レイアウトで、一定水準以上の異音特性、屈曲寿
命特性、耐摩耗特性および耐寒特性が必要とされ
ている。 The usage conditions include, for example, in an automobile engine, a layout requiring so-called reverse bending, noise characteristics, bending life characteristics, wear resistance characteristics, and cold resistance characteristics of a certain level or higher are required.
ところが、従来の多突条ベルトａは第１１図に
示すように、突条ｂに短繊維を混入しているが、
屈曲寿命の点から混入量に一定の制限があり、剛
性をあまり高めることはできず、プーリへの巻付
時に前記突条ｂの変形が大きくなるため、きしみ
音等の異音をを発生するという不具合がある。な
お、ｃは上側帆布層、ｄは抗張体層で、抗張体コ
ードｅ（例えばポリエステルコード、芳香族ポア
リアミド樹脂コード、ガラスコード、スチールコ
ード）が接着ゴムｆ中に埋設されている。 However, as shown in FIG. 11, in the conventional multi-protrusion belt a, short fibers are mixed in the protrusion b.
There is a certain limit to the amount of mixture mixed in from the viewpoint of bending life, so the rigidity cannot be increased much, and the deformation of the protrusion b becomes large when it is wrapped around the pulley, causing abnormal noises such as squeaks. There is a problem. In addition, c is an upper canvas layer, d is a tensile material layer, and a tensile material cord e (for example, a polyester cord, an aromatic polyamide resin cord, a glass cord, a steel cord) is embedded in the adhesive rubber f.
ところで、例えば実開昭57−181950号公報に記
載されるように、各リブの圧縮部下面に耐寒仕様
の薄ゴム層を設け、その薄ゴム層によつて耐寒特
性を改善した多リブベルトが知られている。 By the way, as described in Japanese Utility Model Application Publication No. 57-181950, for example, a multi-rib belt is known in which a thin rubber layer with cold resistance specifications is provided on the compressed lower surface of each rib, and the cold resistance properties are improved by the thin rubber layer. It is being
（考案が解決しようとする課題）
しかしながら、そのようなベルトでは、薄ゴム
層は短繊維が混入されておらずゴムのみからなる
ので、そのような薄ゴム層を設けることにより、
第１１図に示すベルトに比して各リブの剛性はあ
まり高くならず、各リブの摩擦係数が高くなるの
で、特に異音の発生が大きな問題となる。(Problem to be solved by the invention) However, in such a belt, the thin rubber layer does not contain short fibers and consists only of rubber, so by providing such a thin rubber layer,
Compared to the belt shown in FIG. 11, the rigidity of each rib is not so high, and the coefficient of friction of each rib is high, so the generation of abnormal noise becomes a particularly big problem.
本考案はかかる点に鑑みてなされたもので、突
条の先端部位に先端耐寒ゴム層が配置され、耐寒
特性に優れるベルトにおいて、異音特性を改善し
た多突条ベルトを提供することを目的とするもの
である。 The present invention has been developed in view of the above, and an object of the present invention is to provide a multi-protrusion belt with improved noise characteristics, in which a cold-resistant rubber layer is arranged at the tip of the protrusion, and the belt has excellent cold resistance. That is.
（課題を解決するための手段）
本考案は、ベルト基帯に対し複数の突条がベル
ト長手方向に突設され、該突条を形成し短繊維で
補強された圧縮ゴム層の高さ方向の先端部位に先
端耐寒ゴム層が配置された多突条ベルトを前提と
し、前記先端耐寒ゴム層は摩擦係数低下用短繊維
がベルト幅方向に配列され、該先端耐寒ゴム層の
短繊維は、短繊維長さと短繊維径との比であるア
スペクト比が100〜1000であり、ゴム配合物100容
量部に対して５〜10容量部が混入されている構成
とする。(Means for Solving the Problems) The present invention has a plurality of protrusions protruding from the belt base belt in the longitudinal direction of the belt, and a compressed rubber layer formed with the protrusions and reinforced with short fibers in the height direction. A multi-protrusion belt is provided with a cold-resistant rubber tip layer disposed at the tip of the belt, the cold-resistant rubber tip layer has short fibers for reducing the coefficient of friction arranged in the belt width direction, and the short fibers of the cold-resistant rubber tip layer are: The aspect ratio, which is the ratio of short fiber length to short fiber diameter, is 100 to 1000, and 5 to 10 parts by volume are mixed into 100 parts by volume of the rubber compound.
（作用）
圧縮ゴム層の高さ方向の先端部位に配置された
先端耐寒ゴム層には摩擦係数低下用短繊維がベル
ト幅方向に配列され、該先端耐寒ゴム層の短繊維
は、短繊維長さと短繊維径との比であるアスペク
ト比が100〜1000であり、ゴム配合物100容量部に
対して５〜10容量部混入されているので、耐寒特
性を従来のものに比して低下させることなく、異
音特性が改善される（第７図及び第８図参照）。(Function) Short fibers for reducing the coefficient of friction are arranged in the belt width direction in the tip cold-resistant rubber layer disposed at the tip in the height direction of the compressed rubber layer. The aspect ratio, which is the ratio between the fiber diameter and short fiber diameter, is 100 to 1000, and 5 to 10 parts by volume are mixed into 100 parts by volume of the rubber compound, so the cold resistance properties are lower than that of conventional products. The abnormal noise characteristics are improved without causing any problems (see FIGS. 7 and 8).
（実施例）
以下、本考案の実施例を図面に沿つて詳細に説
明する。(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.
概略構成を示す第１図および第２図において、
１は多突条ベルトで、帯状のベルト基帯２に対し
複数の突条３がベルト長手方向に沿つて突設され
ている。 In FIGS. 1 and 2 showing the schematic configuration,
Reference numeral 1 denotes a multi-protrusion belt, in which a plurality of protrusions 3 are provided to protrude from a belt-shaped belt base band 2 along the longitudinal direction of the belt.
４は上帆布層で、２層の綿帆布４ａ，４ａ（厚
さ0.6mm）からなり、ベルト長手方向に対しバイ
アス状に（90゜〜150゜角）配置されている。 Reference numeral 4 denotes an upper canvas layer, which is made of two layers of cotton canvas 4a, 4a (thickness: 0.6 mm), and is arranged in a biased manner (at an angle of 90° to 150°) with respect to the longitudinal direction of the belt.
５は抗張体層で、抗張体コード６（ポリエステ
ルコード、直径0.8mm）が接着ゴム７（CRゴム）
中に埋設されている。 5 is a tensile material layer, and tensile material cord 6 (polyester cord, diameter 0.8 mm) is adhesive rubber 7 (CR rubber)
It is buried inside.
８は圧縮ゴム層で、短繊維入りのCRゴムから
なり、その一部が突条３を形成している。この突
条３の高さ方向の先端部位には、短繊維がベルト
幅方向に配列されてなる先端耐寒ゴム層としての
先端軟質ゴム層９が配置されている。なお、先端
軟質ゴム層９の短繊維は、アスペクト比（繊維長
さ／繊維径）が100〜1000で、ゴム配合物100容量
部に対して５〜30容量部の割合で混入されてい
る。 8 is a compressed rubber layer made of CR rubber containing short fibers, a part of which forms the protrusions 3. A tip soft rubber layer 9, which serves as a tip cold-resistant rubber layer and is made of short fibers arranged in the belt width direction, is disposed at the tip end portion of the protrusion 3 in the height direction. The short fibers of the tip soft rubber layer 9 have an aspect ratio (fiber length/fiber diameter) of 100 to 1000, and are mixed at a ratio of 5 to 30 parts by volume per 100 parts by volume of the rubber compound.
さらに詳述すれば、圧縮ゴム層８は、周知の
CRゴム配合物100重量部に対し、綿、ナイロン、
またはポリエステルの短繊維（３〜５mm）を未接
着処理または周知の接着処理を施して、単独若し
くは混合してなる15重量部混入分散し、周知の方
法でベルト幅方向に短繊維を配列させたものであ
る。ゴム硬度は83゜である。 More specifically, the compressed rubber layer 8 is a well-known
For 100 parts by weight of CR rubber compound, cotton, nylon,
Alternatively, 15 parts by weight of polyester short fibers (3 to 5 mm), either unbonded or subjected to a well-known bonding process, alone or in a mixture, are mixed and dispersed, and the short fibers are arranged in the width direction of the belt by a well-known method. It is something. Rubber hardness is 83°.
先端軟質ゴム層９は、周知の耐寒CRゴム配合
物100重量部に対し、綿短繊維６重量部を混入分
散されてなるもので、ゴム硬度は80゜である。 The tip soft rubber layer 9 is made by mixing and dispersing 6 parts by weight of short cotton fibers into 100 parts by weight of a well-known cold-resistant CR rubber compound, and has a rubber hardness of 80°.
前記先端軟質ゴム層９を構成する軟質ゴムのゴ
ム配合の他の具体例を次に示す。 Other specific examples of the rubber compounding of the soft rubber constituting the tip soft rubber layer 9 will be shown below.
ネオプレンゴム 100 重量部
ステアリン酸 １
酸化マグネシウム ４
老化防止剤 ２
カーボンブラツク 40
可塑剤（DOA） 13
酸化亜鉛 ５
短繊維 10.5
上記配合において、可塑剤は、ゴム硬度により
変量される。また、短繊維としては例えばRFL
処理し５mmにカツトされた６６ナイロン繊維が用
いられ、異音の発生具合により変量される。 Neoprene rubber 100 parts by weight Stearic acid 1 Magnesium oxide 4 Anti-aging agent 2 Carbon black 40 Plasticizer (DOA) 13 Zinc oxide 5 Short fibers 10.5 In the above formulation, the plasticizer is varied depending on the rubber hardness. In addition, as short fibers, for example, RFL
66 nylon fibers that have been treated and cut into 5 mm lengths are used, and the amount is varied depending on the degree of noise generation.
なお、多突条ベルト１の具体的な寸法の一例
は、第２図において、L1＝5.8mm、L2＝2.9mm、L3
＝3.56mm、L4＝1.2mm、θ＝40゜である。 In addition, an example of specific dimensions of the multi-protrusion belt 1 is as follows in FIG. 2: L 1 = 5.8 mm, L 2 = 2.9 mm, L 3
= 3.56 mm, L 4 = 1.2 mm, θ = 40°.
続いて、本考案形の多突条ベルト（第１図およ
び第２図参照）と、従来形の多突条ベルト（第１
図参照）とについて試験を行つた。 Next, the multi-protrusion belt of the present invention (see Fig. 1 and Fig. 2) and the conventional multi-protrusion belt (see Fig. 1 and Fig. 2) were developed.
(see figure).
−試験方法−
(i) 屈曲寿命評価試験
第３図に示すシステムにおいて、駆動プーリ２
１（直径60mm、回転速度4900rpm）と従動プーリ
２２（直径60mm）との間に試料ベルト２３（突条
が３つ、Ｋ形、ベルト外周1000mm）を巻き付け、
テンシヨンプーリ２４（直径30mm）を押し付け、
従動プーリ２２にデツドウエイトF1（35Kg）を加
えて、クラツクが３つ以上発生するまでの時間を
もつて屈曲寿命とした。-Test method- (i) Bending life evaluation test In the system shown in Figure 3, the drive pulley 2
1 (diameter 60 mm, rotation speed 4900 rpm) and driven pulley 22 (diameter 60 mm).
Press tension pulley 24 (30mm diameter),
A dead weight F 1 (35Kg) was added to the driven pulley 22, and the time until three or more cracks occurred was defined as the flex life.
(ii) 異音評価試験
第４図に概略構成を示す回転変動強制機を用い
て、３名のパネラーによる官能評価、すなわちＡ
〜Ｆと６段階に亘る評価を行つた。ただし、Ａか
らＦになるにつれて、異音の感じ方が激しくなる
ものとする。この回転変動強制機は、クランクプ
ーリ３１（直径130mm）とエアコン（エアコンデ
イシヨナ）のプーリ３２（直径125mm）との間に、
試料ベルト３３（突条が３つ、Ｋ形、ベルト外周
1000mm）を巻き掛け、テンシヨンプーリ３４（直
径70mm）を適用してなる。(ii) Abnormal noise evaluation test Using a rotational fluctuation forced machine whose schematic configuration is shown in Figure 4, sensory evaluation was carried out by three panelists, namely A.
Evaluations were made on a six-point scale from ~F. However, as you go from A to F, it is assumed that the abnormal noise becomes more intense. This rotational variation forced machine is installed between the crank pulley 31 (diameter 130 mm) and the pulley 32 (diameter 125 mm) of the air conditioner (air conditioner).
Sample belt 33 (3 protrusions, K shape, belt outer circumference
1000mm) and a tension pulley 34 (diameter 70mm).
ここで、初期張力T0＝20Kg、エアコンはオン
状態、エンジンは冷間時のアイドリング回転
（700〜800rpm）である。なお、クランクプーリ
３１は回転時に5゜の回転変動が与えられる。 Here, the initial tension T 0 =20 Kg, the air conditioner is on, and the engine is idling (700 to 800 rpm) when cold. Incidentally, the crank pulley 31 is given a rotational variation of 5 degrees during rotation.
(iii) 耐摩耗性試験
第５図に示すシステムにおいて、駆動プーリ４
１（直径60mm、回転速度2000rpm）と、１対の従
動プーリ４２，４３（直径40mm）に対して、試料
ベルト４４（突条が３つ、Ｋ形、ベルト外周1000
mm）を巻回し、一方の従動プーリ４３でF2＝50
Kgのデツドウエイトを加えた状態で、24時間走行
させた後の重量摩耗率をもつて耐摩耗性を表わし
た。(iii) Wear resistance test In the system shown in Figure 5, the drive pulley 4
1 (diameter 60 mm, rotational speed 2000 rpm) and a pair of driven pulleys 42, 43 (diameter 40 mm), sample belt 44 (3 protrusions, K shape, belt outer circumference 1000 mm)
mm), and F 2 = 50 with one driven pulley 43.
Wear resistance was expressed by the weight wear rate after running for 24 hours with a dead weight of kg added.
(iv) 耐寒性評価試験
第６図に示すシステムにおいて、駆動プーリ５
１（直径60mm、回転速度5000rpm）と、従動プー
リ５２（直径60mm）との間に試料ベルト５３（突
条が３つ、Ｋ形、ベルト外周1000mm）を巻回し、
テンシヨンプーリ５４（直径30mm）を適用して、
従動プーリ５２にF3＝35Kgのデツドウエイトを
加えた状態で、温度−35℃で24時間放置し、その
後、５分間運転、25分間冷却というサイクルを繰
り返した。しかして、試料ベルト５３の突条の底
にクラツクが発生するまでの時間をもつて耐寒寿
命とした。なお、測定結果は、従来形の耐寒寿命
を１として指数表示した。−試験結果−
(i) 先端軟質ゴム層９の短繊維のアスペクト比に
よる影響
第７図に示す通りである。すなわち、アスペ
クト比は、100〜1000の範囲にあることが望ま
しいことが判る。なお、Ｙは従来形である。(iv) Cold resistance evaluation test In the system shown in Figure 6, the drive pulley 5
1 (diameter 60 mm, rotation speed 5000 rpm) and a driven pulley 52 (diameter 60 mm).
Applying tension pulley 54 (30mm diameter),
A dead weight of F 3 =35 kg was added to the driven pulley 52, and it was left at -35° C. for 24 hours, and then a cycle of running for 5 minutes and cooling for 25 minutes was repeated. The cold resistance life was defined as the time until a crack appeared at the bottom of the protrusion of the sample belt 53. Note that the measurement results are expressed as an index with the cold resistance life of the conventional type as 1. -Test Results- (i) Influence of the aspect ratio of the short fibers in the tip soft rubber layer 9 As shown in Fig. 7. That is, it can be seen that the aspect ratio is preferably in the range of 100 to 1000. Note that Y is a conventional type.
ここで、短繊維としては、RFL処理を施し
た６６ナイロン（６デニール）を用いて、
6PHR混入した。 Here, as short fibers, 66 nylon (6 denier) that has been subjected to RFL treatment is used.
6PHR was mixed.
(ii) 先端軟質ゴム層９における短繊維容量部の影
響
第８図に示す通りである。すなわち、先端軟
質ゴム層９における短繊維は、ゴム配合物100
容量部に対し５〜30容量部の範囲で混入すれば
足りるが、その混入容量部は特に５〜10容量部
の範囲内であることが望ましいと判る。(ii) Influence of the short fiber capacity in the tip soft rubber layer 9 As shown in FIG. That is, the short fibers in the tip soft rubber layer 9 are made of rubber compound 100
It is sufficient to mix in the range of 5 to 30 parts by volume, but it is found that it is particularly desirable that the mixed volume part is in the range of 5 to 10 parts by volume.
なお、短繊維としては綿繊維を用い、そのア
スペクト比は1000である。また、第８図におい
て、線にて結んでいない点は、従来形である。 Note that cotton fiber is used as the short fiber, and its aspect ratio is 1000. Also, in FIG. 8, the points not connected by lines are of the conventional type.
(iii) 先端軟質ゴム層９の厚さによる影響
第９図に示す通りである。すなわち、先端軟
質ゴム層９の厚さは、0.75〜1.5mmの範囲内に
あることが望ましいと判る。この試験において
突条３の高さは2.9mmであるから、先端軟質ゴ
ム層９の厚さは突条３の高さの25〜50％の範囲
にあればよいともいうことができる。(iii) Influence of the thickness of the tip soft rubber layer 9 As shown in FIG. That is, it is understood that the thickness of the tip soft rubber layer 9 is preferably within the range of 0.75 to 1.5 mm. In this test, the height of the protrusion 3 was 2.9 mm, so it can be said that the thickness of the tip soft rubber layer 9 should be in the range of 25 to 50% of the height of the protrusion 3.
なお、短繊維としては、サントウエーブＤ
（モンサント社製）を用い、そのアスペクト比
は200である。 In addition, as short fibers, Sunwave D
(manufactured by Monsanto) and its aspect ratio is 200.
(iv) 先端軟質ゴム層９のゴム硬度による影響
第１０図に示す通りである。すなわち、先端
軟質ゴム層９のゴム硬度は、70〜81゜の範囲に
あることが望ましいと判る。また、圧縮ゴム層
８のゴム硬度は83゜であるから、それよりも先
端軟質ゴム硬度は2゜以上小さいことがよいと判
る。(iv) Influence of rubber hardness of tip soft rubber layer 9 As shown in FIG. That is, it is understood that the rubber hardness of the tip soft rubber layer 9 is preferably in the range of 70 to 81 degrees. Further, since the rubber hardness of the compressed rubber layer 8 is 83°, it is found that it is preferable that the tip soft rubber hardness is smaller than that by 2° or more.
なお、ゴム硬度は、ゴム配合物におけるカー
ボン量を変量することにより調整し、また、短
繊維としてはポリエステル繊維を用い、そのア
スペクト比は500とした。 The rubber hardness was adjusted by varying the amount of carbon in the rubber compound, and polyester fibers were used as the short fibers, with an aspect ratio of 500.
（考案の効果）
本考案は、上記のように、先端耐寒ゴム層にお
いて摩擦係数低下用短繊維をベルト幅方向に配列
し、該短繊維のアスペクト比を100〜1000とし、
かつその混入量をゴム配合物100容量部に対して
５〜10容量部とするようにしたから、先端耐寒ゴ
ム層の摩擦係数を低下させて、耐寒特性を損なう
ことなく、異音特性が改善され、さらに屈曲寿命
特性及び耐摩耗性にも優れる。(Effect of the invention) As described above, the present invention arranges short fibers for reducing the coefficient of friction in the belt width direction in the cold-resistant rubber tip layer, and sets the aspect ratio of the short fibers to 100 to 1000.
Moreover, since the amount of the mixture is 5 to 10 parts by volume per 100 parts by volume of the rubber compound, the friction coefficient of the cold-resistant rubber layer at the tip is lowered, and the noise characteristics are improved without impairing the cold-resistant characteristics. Furthermore, it has excellent bending life characteristics and wear resistance.
図面は本考案の実施例を示し、第１図および第
２図は多突条ベルトを概略図である。第３図は屈
曲寿命評価試験に用いたシステムの説明図、第４
図は異音評価試験に用いる回転変動強制機の説明
図、第５図は耐摩耗性評価試験に用いたシステム
の説明図、第６図は耐寒特性評価試験に用いたシ
ステムの説明図である。第７図乃至第１０図はそ
れぞれ試験結果を示す図である。第１１図は従来
の多突条ベルトを示す概略図である。
１……多突条ベルト、２……ベルト基帯、３…
…突条、９……先端軟質ゴム層。
The drawings show an embodiment of the present invention, and FIGS. 1 and 2 are schematic views of a multi-protrusion belt. Figure 3 is an explanatory diagram of the system used in the bending life evaluation test, Figure 4
The figure is an explanatory diagram of the rotational variation forced machine used in the abnormal noise evaluation test, Figure 5 is an explanatory diagram of the system used in the wear resistance evaluation test, and Figure 6 is an explanatory diagram of the system used in the cold resistance characteristic evaluation test. . FIG. 7 to FIG. 10 are diagrams showing the test results, respectively. FIG. 11 is a schematic diagram showing a conventional multi-protrusion belt. 1...Multi-projection belt, 2...Belt base belt, 3...
... Projection, 9... Soft rubber layer at the tip.
Claims (1)
向に突設され、該突条を形成し短繊維で補強さ
れた圧縮ゴム層の高さ方向の先端部位に先端耐
寒ゴム層が配置されたベルトであつて、 前記先端耐寒ゴム層は摩擦係数低下用短繊維
がベルト幅方向に配列され、 該先端耐寒ゴム層の短繊維は、短繊維長さと
短繊維径との比であるアスペクト比が100〜
1000であり、ゴム配合物100容量部に対して５
〜10容量部が混入されていることを特徴とする
多突条ベルト。 (2) 先端耐寒ゴム層は、突条を構成するその他の
部分よりもゴム硬度が2°以上小さいところの実
用新案登録請求の範囲第１項記載の多突条ベル
ト。 (3) 先端耐寒ゴム層は、その厚さが突条高さの25
〜50％であるところの実用新案登録請求の範囲
第１項または第２項記載の多突条ベルト。[Claims for Utility Model Registration] (1) A plurality of protrusions are provided on the belt base band to protrude in the longitudinal direction of the belt, and the tips in the height direction of the compressed rubber layer forming the protrusions and reinforced with short fibers The belt has a cold-resistant rubber tip layer arranged at a portion thereof, and the cold-resistant rubber tip layer has short fibers for reducing the coefficient of friction arranged in the width direction of the belt, and the short fibers of the cold-resistant rubber tip layer have short fiber lengths and short fibers. The aspect ratio, which is the ratio to the fiber diameter, is 100~
1000, and 5 parts per 100 parts by volume of the rubber compound.
A multi-protrusion belt characterized by containing ~10 volume parts. (2) The multi-protrusion belt according to claim 1, wherein the tip cold-resistant rubber layer has a rubber hardness that is 2° or more smaller than the other parts constituting the protrusion. (3) The thickness of the cold-resistant rubber layer at the tip is 25 mm
50% of the multi-protrusion belt according to claim 1 or 2 of the utility model registration claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4368283U JPS59150039U (en) | 1983-03-26 | 1983-03-26 | Multi-projection belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4368283U JPS59150039U (en) | 1983-03-26 | 1983-03-26 | Multi-projection belt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59150039U JPS59150039U (en) | 1984-10-06 |
| JPH0312994Y2 true JPH0312994Y2 (en) | 1991-03-26 |
Family
ID=30174217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4368283U Granted JPS59150039U (en) | 1983-03-26 | 1983-03-26 | Multi-projection belt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59150039U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4989556B2 (en) * | 2008-05-26 | 2012-08-01 | 三ツ星ベルト株式会社 | V-ribbed belt |
| JP5586282B2 (en) * | 2010-03-16 | 2014-09-10 | バンドー化学株式会社 | Friction power transmission belt, manufacturing method thereof, and belt power transmission device using the same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS594197Y2 (en) * | 1981-05-20 | 1984-02-06 | 三ツ星ベルト株式会社 | multi rib belt |
-
1983
- 1983-03-26 JP JP4368283U patent/JPS59150039U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59150039U (en) | 1984-10-06 |
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