CN104995038B - 轮胎帘布 - Google Patents

轮胎帘布 Download PDF

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CN104995038B
CN104995038B CN201380054611.8A CN201380054611A CN104995038B CN 104995038 B CN104995038 B CN 104995038B CN 201380054611 A CN201380054611 A CN 201380054611A CN 104995038 B CN104995038 B CN 104995038B
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cord
easl
elongation
cotton tyre
low
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CN104995038A (zh
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S·菲丹
K·阿克索伊
D·塞维姆
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Husky Global Yarn Industry Of Coude And Trade Joint-Stock Co
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
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    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/02—Carcasses
    • B60C9/04—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C13/00—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof
    • B60C13/02—Arrangement of grooves or ribs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C19/00—Tyre parts or constructions not otherwise provided for
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
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    • B60C9/005—Reinforcements made of different materials, e.g. hybrid or composite cords
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    • D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
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    • D03—WEAVING
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    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C2009/0035—Reinforcements made of organic materials, e.g. rayon, cotton or silk
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/02—Carcasses
    • B60C9/04—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship
    • B60C2009/0416—Physical properties or dimensions of the carcass cords
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/02—Carcasses
    • B60C9/04—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship
    • B60C2009/0416—Physical properties or dimensions of the carcass cords
    • B60C2009/0458—Elongation of the reinforcements at break point
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
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    • B60C9/04—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship
    • B60C2009/0416—Physical properties or dimensions of the carcass cords
    • B60C2009/0466—Twist structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/02—Carcasses
    • B60C9/04—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship
    • B60C2009/0475—Particular materials of the carcass cords
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/02—Carcasses
    • B60C9/04—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship
    • B60C2009/0483—Different cords in the same layer
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
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    • D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
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    • D10B2201/20—Cellulose-derived artificial fibres
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    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
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    • D10B2505/00—Industrial
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    • D10B2505/022—Reinforcing materials; Prepregs for tyres
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  • Textile Engineering (AREA)
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Abstract

一种包括具有不同拉伸延长性的交替帘线(2、3)的轮胎帘布(1)用作子午线充气轮胎内的胎体增强件。该轮胎帘布(1)由具有不同拉伸延长性的帘线(2、3)形成并且用作子午线充气轮胎内的增强件，以提供具有波状胎体结构的胎侧区域。

Description

轮胎帘布
技术领域
本发明涉及一种轮胎帘布，该帘布包括具有不同拉伸延长性的交替的帘线，并且用作子午线充气轮胎内的胎体增强件。
背景技术
在轮胎技术中，轮胎的侧偏刚度和其他性能值被保持在期望的范围内，但又对滚动阻力和降低的重量的要求很高。
增大胎体帘线的直径以提高轮胎的侧偏刚度同样意味着提高橡胶尺寸，提高橡胶尺寸对重量和滚动阻力具有负面影响。另一方面，由于其增加了相邻帘线之间的应变能密度和龟裂形成的可能性，增大端支数(epdm，每分米的端数)同时减小或不减小帘线尺寸使轮胎的抗疲劳性降低。
美国专利文献No.US3500888作为现有技术已知的申请披露了热收缩帘线和不收缩的帘线一起用作充气子午线和斜交轮胎内的胎体增强件。根据所述专利文献的权利要求，在硫化过程中在形成与一个胎体层隔开的两层的过程中，热收缩帘线向内运动。结构中包括在其中发生收缩渗透的额外的橡胶层，从而为所述隔开的帘线提供足够的基体。
根据专利文献US3500888，形成双层导致轮胎胎侧内的抗弯曲性提高，然而额外的橡胶层以胎圈至胎圈的方式添加入轮胎从而实现了此目的。此情况增大了轮胎的橡胶量和重量，并对滚动阻力产生了负面影响。而且，在该文献中，帘线的减小的弹性模量(高伸长度)在硫化过程期间热收缩并且充气压力的影响未被披露。热收缩帘线(例如尼龙或PET)具有比不收缩的帘线(例如人造丝)更高的伸长度属性，并且因为热收缩的释放效应，热收缩帘线在硫化处理后可伸长更多。在充气后，低弹性模量的帘线比高弹性模量的帘线伸长更多，并且双层的形成(相互隔开的帘线)被翻转或失去其效果。在该文献中，胎体帘线的胎圈滑移未被披露。而且，如果不适用硬度/粘性较大的橡胶，则帘线会穿透橡胶并且因为热收缩而在硫化过程期间在内衬层中可见。
硫化过程期间可发生的任何温度变化导致在不同胎体位置中的帘线收缩水平的变化，并且由此使轮胎中缺乏均匀分布。
发明内容
本发明的目的是提供一种轮胎帘布，该轮胎帘布由具有不同拉伸延长性的帘线形成并且用作子午线充气轮胎内的增强材料。
本发明的另一目的是提供一种轮胎帘布，该轮胎帘布通过在胎肩区域中提供波状的胎体结构来使子午线充气轮胎内的所述区域增强。
附图说明
开发以实现本发明的目的的“轮胎帘布”在附图中示出，其中：
图1是在先技术中的轮胎帘布的横截面图。
图2是本发明的轮胎帘布的横截面图。
图3a是轮胎帘布(胎体)在硫化处理和/或充气前的横截面图。
图3b是轮胎帘布(胎体)在硫化处理和/或充气后的横截面图。
图4a是轮胎帘布(胎体)在硫化处理和/或充气前的横截面图。
图4b是轮胎帘布(胎体)在硫化处理和/或充气后的横截面图。
图5a是轮胎帘布(胎体)的卷边部在硫化处理前的示意性侧视图。
图5b是轮胎帘布(胎体)的卷边部在硫化处理后的示意性侧视图。
图中示出的部件的每一个给定如下附图标记：
1、轮胎帘布
2、具有高的单位载荷下的伸长度(EASL)的帘线
3、具有低的单位载荷下的伸长度(EASL)的帘线
4、包括交替的不同伸长度属性的帘布(硫化处理前)
5、通道
O、在先技术中的轮胎帘布
K、常规帘线。
具体实施方式
本发明的轮胎帘布(1)包括
-具有高伸长度系数的帘线(2)，所述帘线(2)具有描述为单位载荷下的伸长度(EASL)数值的高伸长度系数，并且所述帘线(2)的长度由此在硫化期间和/或在应用加压空气(充气)的情况下比所述帘线在两侧处的变化更大，
-具有低伸长度系数的帘线(3)，所述帘线(3)具有描述为单位载荷下的伸长度(EASL)数值的低伸长度系数，并且所述帘线(3)的长度由此在硫化期间和/或在应用加压空气(充气)的情况下比所述帘线在两侧处的变化更小，
-帘布(4)，所述帘布(4)包括的帘线通过排列具有高和低的单位载荷下的伸长度的帘线(2、3)形成，并用作经线，所述经线浸渍有RFL并且具有交替的不同伸长度属性，
-通道(5)，因为在包括具有交替的不同伸长度属性的帘线且硫化处理后在所述胎体中作为胎体增强件存在的帘布(4)的结构中，所述帘线(2、3)的单位载荷下的伸长度(EASL)之间存在差异，所以所述通道(5)在所述帘线(2、3)之间形成并且平行于所述帘线(2、3)。
所述发明涉及具有交替排列的，具有不同模量或单位载荷下的伸长度的平行的帘线(2、3)的胎体增强材料的结构。(图2)
轮胎帘布(1)内的具有不同伸长度的交替的胎体帘线(2、3)通过硫化处理和充气后在帘线(2、3)之间形成的通道(5)而在径向部分中形成波状的或Z字形几何结构(图3和4)。轮胎中的此胎体几何结构提高了横向刚度并且增大了轮胎的侧偏刚度和转向稳定性。波状最优选在胎侧区域中，最少优选在下带束和轮胎胎侧中。
在本发明的另一实施例中，在硫化处理(固化)温度下，显示了胎圈周围的具有高和低(或零)热收缩力的交替的胎体帘线(2、3)的帘线滑移差异(图5a、5b)。
由于帘线(2、3)末端之间的距离增加，卷边区域中的抗疲劳性(抗裂纹形成和分布可能性)将提高。通过波状的轮胎帘布(1)具有的微通道(5)，轮胎内产生的噪声将部分被吸收。
影响轮胎在恒定压力下的帘线延长性的参数是材料(纱线类型)、帘线中的材料成分(混合成分)、线密度(分特数)和帘线的螺旋角。影响胎圈周围的胎体滑移的帘线参数是在硫化处理温度和收缩力下的帘线的热收缩性。
在本发明优选的实施例中，如高和低EASL帘线(2、3)，至少一种材料选自包括如下材料的群组：捻度水平不同但是分特数相近的人造丝、PET、PEN和芳族聚酰胺。高EASL帘线(2)具有比低EASL帘线(3)大至少10％的捻度(tpm，每米的捻回数)。
在本发明的一各实施例中，人造丝用作低EASL(3)，并且至少一组混合帘线例如人造丝/尼龙、人造丝/PET或PET/尼龙用作高EASL帘线(2)。
在本发明的另一实施例中，PET纤维用作低EASL(3)，并且至少一组混合帘线例如人造丝/尼龙、人造丝/PET或PET/尼龙用作高EASL帘线(2)。
在本发明的另一实施例中，PEN用作低EASL(3)，并且至少一组混合帘线例如人造丝/尼龙、PEN/PET或PEN/尼龙用作高EASL帘线(2)。
在本发明的另一实施例中，芳族聚酰胺纤维用作低EASL(3)，并且至少一组混合帘线例如芳族聚酰胺/尼龙、芳族聚酰胺/PET用作高EASL帘线(2)。
本发明的轮胎帘布(1)中使用的帘线(2、3)的额定分特值可在800和6000分特之间变化。
本发明的轮胎帘布(1)中使用的帘线(2、3)的捻度水平可在150和700tpm(每米的捻回数)之间变化。
在这些基本构思的框架中，有可能发展出本发明的轮胎帘布(1)的各种各样的实施例。本发明不可限制为这里描述的示例，并且其本质上在权利要求书中限定。

Claims (10)

1.一种轮胎帘布（1），其用作胎体增强材料以便提高充气轮胎的横向刚性，并且其特征在于，
-具有高伸长度的帘线（2），所述具有高伸长度的帘线（2）具有描述为单位载荷下的伸长度（EASL）数值的高伸长度系数，并且所述具有高伸长度的帘线（2）的长度由此在硫化期间和/或在应用加压空气的情况下比所述帘线在两侧处的变化更大，
-具有低伸长度的帘线（3），所述具有低伸长度的帘线（3）具有描述为单位载荷下的伸长度（EASL）数值的低伸长度系数，并且所述具有低伸长度的帘线（3）的长度由此在硫化期间和/或在应用加压空气的情况下比所述帘线在两侧处的变化更小，
-至少一个帘布（4），所述至少一个帘布（4）包括的帘线通过排列具有高和低的单位载荷下的伸长度的帘线（2、3）形成，并用作经线，所述经线浸渍有RFL并且具有交替的不同伸长度属性，
-通道（5），因为在包括具有交替的不同伸长度属性的帘线且硫化处理后在所述胎体中作为胎体增强件存在的帘布（4）的结构中，所述帘线（2、3）的单位载荷下的伸长度（EASL）之间存在差异，所以所述通道（5）在所述帘线（2、3）之间形成并且平行于所述帘线（2、3）。
2.根据权利要求1所述的轮胎帘布（1），其特征在于具有高和低伸长度系数的帘线（2、3），其中使用选自包括如下材料的群组的至少一种材料：捻度水平不同但分特数相近的人造丝、PET、PEN和芳族聚酰胺。
3.根据权利要求2所述的轮胎帘布（1），其特征在于，具有高伸长度的帘线（2）的捻度水平比具有低伸长度的帘线（3）大至少10％。
4.根据权利要求3所述的轮胎帘布（1），其特征在于，人造丝用作低EASL帘线（3），并且作为人造丝/尼龙、人造丝/PET或PET/尼龙混合帘线中的一者的至少一组材料用作高EASL帘线（2）。
5.根据权利要求3所述的轮胎帘布（1），其特征在于，PET用作低EASL帘线（3），并且作为人造丝/尼龙、尼龙/PET混合帘线中的一者的至少一组材料用作高EASL帘线（2）。
6.根据权利要求3所述的轮胎帘布（1），其特征在于，PEN用作低EASL帘线（3），并且作为人造丝/尼龙、PEN/PET或PET/尼龙混合帘线中的一者的至少一组材料用作高EASL帘线（2）。
7.根据权利要求3所述的轮胎帘布（1），其特征在于，芳族聚酰胺用作低EASL帘线（3），并且作为芳族聚酰胺/尼龙、芳族聚酰胺/PET混合帘线中的一者的至少一组材料用作高EASL帘线（2）。
8.根据前述权利要求中任一项所述的轮胎帘布（1），其特征在于，帘线（2、3）的额定分特值在800和6000分特之间变化。
9.根据权利要求1至7中任一项所述的轮胎帘布（1），其特征在于，帘线（2、3）的捻度水平在150和700tpm（每米的捻回数）之间变化。
10.根据权利要求1所述的轮胎帘布（1），其特征在于，胎侧区域中的微通道（5）大量吸收轮胎内的噪声。
CN201380054611.8A 2012-10-18 2013-09-18 轮胎帘布 Expired - Fee Related CN104995038B (zh)

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