CN1676310A - 用于制造雨刷的雨刷片的方法 - Google Patents
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Abstract
建议一种用于一个雨刷、尤其是用于汽车雨刷的雨刷片的制造方法,该雨刷片具有一个带有一个雨刷唇(2)的雨刷胶条。其中,所述雨刷胶条通过将一种橡胶材料与聚乙烯共同硫化来制造,作为原材料的聚乙烯为粉末状,并具有小于30微米的粒度。
Description
技术领域
本发明涉及根据权利要求1前序部分中所述的用于制造雨刷、尤其是用于汽车雨刷的雨刷片的方法。
前述类型的雨刷片由实践中已知,包括一个用一个雨刷唇构成的雨刷胶条。该雨刷胶条或者雨刷唇由一种橡胶材料制成,该材料例如以天然橡胶为基础进行生产。
已知雨刷的雨刷胶条或者雨刷唇的缺点是,它们在常用的风挡玻璃上进行操作时具有较高的干摩擦系数μtr。
这种干摩擦系数处于0.8和1.2之间,大于在较湿的挡风玻璃的情况下出现的摩擦系数,所述干摩擦系数需要功率强的并因此费用高的雨刷驱动装置。
本发明的优点
根据本发明的用于一个雨刷、尤其是用于汽车雨刷的雨刷片,具有根据权利要求1的前序部分的特征,其中雨刷唇局部地由聚乙烯制成,与现有技术相比的优点是,通过将聚乙烯用作雨刷唇的材料可以得到较小的干摩擦系数μtr。
在某种操作条件下,这与现有技术相比、更确切地说即使在较干燥的挡风玻璃的情况下也产生较小的噪声。
通过根据本发明的雨刷片的与现有技术相比较小的干摩擦系数,可以使用最好较小尺寸的、具有相应最小化功率的雨刷驱动器。
雨刷唇可以用聚乙烯涂覆,和/或在体积中包含聚乙烯。
根据一种优选的实施形式,聚乙烯是PE-UHMW。PE-UHMW亦即具有超高的摩尔质量的聚乙烯特别适用于涂覆雨刷唇,因为它作为完全材料(Vollmaterial)具有一个较低的干摩擦系数。因此例如在接触长度为8毫米的、在一个以0.1米每秒的速度旋转的玻璃轴上施加0.128牛顿的力的情况下,由PE-UHMW制成的完全材料试样的干摩擦系数μtr为0.21。
在将一种用PE-UHMW涂覆的橡胶材料进行硫化时,PE-UHMW通过扩散与橡胶材料粘附固定地连接。只要PE-UHMW作为粉末涂覆到橡胶材料上,那么所述材料在硫化时烧结。PE-UHMW尤其这样粘接在橡胶材料上:聚乙烯-橡胶材料联合从在联合处中的一定载荷起拉裂。
根据本发明的雨刷片的聚乙烯可替换地可以是PE-HD、也就是高密度聚乙烯,或者也可以是PE-X、也就是交联的聚乙烯。尤其是PE-X,在制造根据本发明的雨刷片时熔化液态地涂覆在一种橡胶材料上,并在硫化时进行热的后交联化。
本发明的主题还在于用于制造雨刷的雨刷片的一种方法,所述雨刷片包括一个带有一个雨刷唇的雨刷胶条。在这种方法中,雨刷胶条通过对于橡胶材料和聚乙烯共同的硫化来制造。
橡胶材料可以以天然橡胶为基础进行制造。但是也可以设想,合成的橡胶材料用作雨刷胶条的基础材料(Grundmaterial)。
在根据本发明的方法的一种优选实施形式中,在通常的橡胶硫化时的条件下进行硫化。
作为原材料的聚乙烯最好是粉末状的,具体地说具有大约0.1微米至30微米的粒度。
在根据本发明的方法的一种优选实施例中,橡胶材料在硫化之前用聚乙烯进行涂覆。用聚乙烯进行涂覆的模制件的硫化可以在一个模具中进行。由橡胶材料和聚乙烯制成的硫化工件可以容易脱模。
在共同的硫化之前对于橡胶材料用聚乙烯进行的涂覆可以如此进行:装入到模型中的橡胶材料用一种含有聚乙烯颗粒的分散体进行涂覆;或者所述橡胶材料撒上聚乙烯粉末。尤其是一种常用的静电粉末涂覆方法适合于对于聚乙烯粉末的涂覆。最好未硫化的橡胶材料全平面地撒上PE粉末。但也可以进行局部覆盖。
聚乙烯也可以借助于一个沸腾层涂覆在橡胶材料上。在一种优选的实施形式中,在这里橡胶材料热地和粘性地从一个挤压头中挤压出来。橡胶材料通过一个开口进入到由具有粒度在0.1微米和15微米之间的特别精细的PE-UHMW粉末组成的、低浓缩的沸腾层中,然后通过一个开口将沸腾层排出,以便然后用清洁的吹洗空气进行吹风。这样可以去除没有粘附在橡胶材料上的聚乙烯颗粒。吹洗空气也可以再次用来操纵沸腾层。
在根据本发明的方法的另一种实施形式中,未硫化的橡胶材料在一种热压中使用特制钢工具例如在温度为180℃、压力为70巴的情况下在模型中挤压10秒钟,然后取出并用水冷却。在进行干燥后,部分硫化的橡胶模制件双面较薄地撒上PE-UHMW粉末。接下来撒上粉末的模制件在压力为70巴、温度为180℃的情况下在一个与所述橡胶模制件对应的模具中硫化5分钟。
橡胶材料和聚乙烯也可以根据一种共挤压法互相连接起来。在共挤压时,在这里至少在雨刷胶条的雨刷唇的部位上供应聚乙烯熔液、聚乙烯薄膜、聚乙烯单缕丝或者聚乙烯软线。接下来橡胶材料和紧贴在这上面的聚乙烯共同进行硫化。
但也可以将雨刷胶条与雨刷唇一起根据一种压铸方法进行制造。在这种情况下,由聚乙烯制成的薄膜、单缕丝或者软线在压力铸造之前装入到一个压铸模型中,或者压铸模型用由聚乙烯制成的分散体或者粉末进行涂覆。
如果聚乙烯应该包含在雨刷唇的体积中,所述雨刷唇最好由一种混合物制成,该混合物包括橡胶材料和聚乙烯。
根据一种优选的实施形式,所述混合物包含1%和50%之间的聚乙烯粉末、尤其是PE-UHMW粉末。
根据本发明的主题的其它优点和有利的改进方案由说明书、附图和权利要求书给出。
附图说明
汽车雨刷装置的根据本发明的雨刷片的四种实施例在附图中示意性地简要示出,并在下面的描述中作详细说明。附图示出:
图1一个雨刷片的横截面原理示意图,
图2一个雨刷片的第二种实施例的横截面示图,
图3一个雨刷片第三种实施形式的横截面,
图4一个雨刷片的第四种实施形式。
具体实施方式
在图1中示出一个雨刷片,该雨刷片由一个雨刷唇2、一个头部件3和一个所谓的转换板条4所组成,所述雨刷唇2由橡胶材料制成并具有一个雨刷棱边(Wischkante)5;所述头部件3在这里仅部分示出并由橡胶材料制成;所述转换板条4由橡胶材料制成并布置在头部件3和雨刷唇2之间。
雨刷唇2、头部件3和转换板条4设置有一个表面,该表面由一层聚乙烯层1构成,所述聚乙烯层为了直观起见在图1中与雨刷唇2、头部件3和转换板条4相比放大地示出。聚乙烯层1目前由PE-UHMW制成,也就是说由具有超高的摩尔质量的聚乙烯所制成。
根据图1的雨刷片如此制造:首先将局部硫化的橡胶材料在一个挤压机中借助于一个工具在雨刷片模型中进行挤压,然后撒上PE-UHMW粉末,并随后进行硫化。在该硫化过程中的条件相应于通常的硫化条件。
雨刷唇的材料特性导致的结果是,在测量时,其中将雨刷片1紧贴在一个旋转的玻璃板上、刮水速度以及压力关系如同在汽车的情况下一样,那么干摩擦系数μtr就会达到0.32和0.48之间。
一个雨刷片的在图2中示出的实施例基本上包括与根据图1的雨刷片相同的构件。然而,根据图2的雨刷片与根据图1的那个不同的是一个所谓的雨刷棱边5,该雨刷棱边没有聚乙烯。
一个雨刷片的在图3中示出的实施例也基本上包括与根据图1的雨刷片相同的构件,然而与后者不同的是,在雨刷唇2上形成的雨刷棱边、转换板条4和头部件3没有聚乙烯,雨刷唇2只在其与雨刷棱边5临接的侧面部位中有聚乙烯,也就是说,只有部分用聚乙烯进行涂覆。
在图4中示出的实施例示出了一个雨刷片,该雨刷片基本上包括一个只部分示出的由橡胶材料制成的头部件3、一个连接在头部件3上的由橡胶材料制成的转换板条4和一个具有一个雨刷棱边5的雨刷唇6。雨刷唇6由橡胶材料制成,在所述橡胶材料中嵌入PE-UHMW形式的聚乙烯。雨刷唇6由一种包括大约40%的聚乙烯的原材料制成。
这里雨刷胶条是一个挤压件。可以替换的是,雨刷胶条以一种已知的方式也可根据挤压方法或者通过压缩模塑法进行制造。
Claims (9)
1.用于制造雨刷的雨刷片的方法,该雨刷片包括一个带有一个雨刷唇的雨刷胶条,其中,所述雨刷胶条通过将一种橡胶材料与聚乙烯共同硫化来制造,其特征在于,作为原材料的聚乙烯为粉末状,并具有小于30微米的粒度。
2.根据权利要求1所述的方法,其特征在于,所述橡胶材料在硫化之前用聚乙烯进行涂覆。
3.根据权利要求2所述的方法,其特征在于,橡胶材料用一种包括一种聚乙烯颗粒的分散体进行涂覆。
4.根据权利要求2所述的方法,其特征在于,根据一种静电的粉末涂覆方法将聚乙烯涂覆到橡胶材料上。
5.根据权利要求2所述的方法,其特征在于,聚乙烯借助于一个沸腾层涂覆在橡胶材料上。
6.根据权利要求2所述的方法,其特征在于,橡胶材料和聚乙烯根据一种共挤压法而互相连接起来。
7.根据权利要求2至6中任一项所述的方法,其特征在于,对用聚乙烯涂覆的橡胶材料施加冲洗空气。
8.根据权利要求1或2所述的方法,其特征在于,所述雨刷唇由一种混合物制成,该混合物包括橡胶材料和聚乙烯。
9.根据权利要求8所述的方法,其特征在于,所述混合物包括1%和50%之间的聚乙烯粉末。
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DE2001125045 DE10125045A1 (de) | 2001-05-23 | 2001-05-23 | Wischerblatt |
DE10125045.2 | 2001-05-23 |
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CNB028105834A Division CN100418813C (zh) | 2001-05-23 | 2002-04-12 | 雨刷片 |
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CNB2005100697011A Expired - Fee Related CN100523063C (zh) | 2001-05-23 | 2002-04-12 | 用于制造雨刷的雨刷片的方法 |
CNB028105834A Expired - Fee Related CN100418813C (zh) | 2001-05-23 | 2002-04-12 | 雨刷片 |
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ES (1) | ES2493625T3 (zh) |
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DE102007034328A1 (de) * | 2007-07-24 | 2009-01-29 | Robert Bosch Gmbh | Strangextrudat sowie Verfahren zu seiner Herstellung und Verwendung |
DE102008004636A1 (de) * | 2008-01-16 | 2009-07-23 | Robert Bosch Gmbh | Verfahren zur Herstellung von Strangprofilen |
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DE102009000072B4 (de) | 2009-01-08 | 2024-03-14 | Robert Bosch Gmbh | Wischblatt |
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DE102009026914A1 (de) * | 2009-06-12 | 2010-12-16 | Robert Bosch Gmbh | Verfahren zur Beschichtung eines Strangprofils |
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CN102933435A (zh) * | 2010-04-28 | 2013-02-13 | 联邦莫古尔股份有限公司 | 挡风玻璃刮水装置 |
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KR101693832B1 (ko) * | 2016-06-17 | 2017-01-06 | 주식회사 킴블레이드 | 단공형 각도 유지형 와이퍼 블레이드 |
US10414379B2 (en) * | 2014-12-18 | 2019-09-17 | Kimblade Co., Ltd. | Wiper blade |
WO2016098970A1 (ko) * | 2014-12-18 | 2016-06-23 | 주식회사 킴블레이드 | 와이퍼 블레이드 |
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2001
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2002
- 2002-04-12 CZ CZ20033192A patent/CZ300569B6/cs not_active IP Right Cessation
- 2002-04-12 US US10/478,711 patent/US20040148728A1/en not_active Abandoned
- 2002-04-12 JP JP2002591315A patent/JP2004525032A/ja active Pending
- 2002-04-12 PL PL366743A patent/PL209748B1/pl unknown
- 2002-04-12 EP EP02732391A patent/EP1395470A1/de not_active Ceased
- 2002-04-12 EP EP20080105696 patent/EP2048048A3/de not_active Withdrawn
- 2002-04-12 CN CNB2005100697011A patent/CN100523063C/zh not_active Expired - Fee Related
- 2002-04-12 EP EP20050100133 patent/EP1522472B1/de not_active Expired - Lifetime
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WO2002094624A1 (de) | 2002-11-28 |
EP2048048A3 (de) | 2009-05-13 |
EP1522472B1 (de) | 2014-06-11 |
PL366743A1 (en) | 2005-02-07 |
CN100523063C (zh) | 2009-08-05 |
BR0209978A (pt) | 2004-04-06 |
EP2048048A2 (de) | 2009-04-15 |
US20040148728A1 (en) | 2004-08-05 |
CZ300569B6 (cs) | 2009-06-17 |
JP2004525032A (ja) | 2004-08-19 |
CN1511094A (zh) | 2004-07-07 |
WO2002094624A8 (de) | 2004-01-29 |
EP1395470A1 (de) | 2004-03-10 |
EP1522472A3 (de) | 2006-08-09 |
ES2493625T3 (es) | 2014-09-12 |
KR20040002978A (ko) | 2004-01-07 |
DE10125045A1 (de) | 2002-12-05 |
EP1522472A2 (de) | 2005-04-13 |
BR0209978B1 (pt) | 2011-05-31 |
CN100418813C (zh) | 2008-09-17 |
CZ20033192A3 (en) | 2004-04-14 |
PL209748B1 (pl) | 2011-10-31 |
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