CN101687370B - 用于在力车轮胎内施加材料层的方法 - Google Patents

用于在力车轮胎内施加材料层的方法 Download PDF

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CN101687370B
CN101687370B CN200880022235.3A CN200880022235A CN101687370B CN 101687370 B CN101687370 B CN 101687370B CN 200880022235 A CN200880022235 A CN 200880022235A CN 101687370 B CN101687370 B CN 101687370B
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CN101687370A (zh
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J·梅里诺·洛佩斯
L·贝斯根
F·皮亚洛
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Societe de Technologie Michelin SAS
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C73/00Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
    • B29C73/16Auto-repairing or self-sealing arrangements or agents
    • B29C73/18Auto-repairing or self-sealing arrangements or agents the article material itself being self-sealing, e.g. by compression
    • B29C73/20Auto-repairing or self-sealing arrangements or agents the article material itself being self-sealing, e.g. by compression the article material only consisting in part of a deformable sealing material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00Producing pneumatic or solid tyres or parts thereof
    • B29D30/06Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0681Parts of pneumatic tyres; accessories, auxiliary operations
    • B29D30/0685Incorporating auto-repairing or self-sealing arrangements or agents on or into tyres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00Producing pneumatic or solid tyres or parts thereof
    • B29D30/06Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0681Parts of pneumatic tyres; accessories, auxiliary operations
    • B29D30/0685Incorporating auto-repairing or self-sealing arrangements or agents on or into tyres
    • B29D2030/0686Incorporating sealants on or into tyres not otherwise provided for; auxiliary operations therefore, e.g. preparation of the tyre
    • B29D2030/0695Incorporating sealants on or into tyres not otherwise provided for; auxiliary operations therefore, e.g. preparation of the tyre the sealant being in the form of one wide strip, e.g. a patch
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2030/00Pneumatic or solid tyres or parts thereof
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T152/00Resilient tires and wheels
    • Y10T152/10Tires, resilient
    • Y10T152/10495Pneumatic tire or inner tube
    • Y10T152/10666Automatic sealing of punctures [e.g., self-healing, etc.]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T152/00Resilient tires and wheels
    • Y10T152/10Tires, resilient
    • Y10T152/10495Pneumatic tire or inner tube
    • Y10T152/10666Automatic sealing of punctures [e.g., self-healing, etc.]
    • Y10T152/10675Using flowable coating or composition
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T152/00Resilient tires and wheels
    • Y10T152/10Tires, resilient
    • Y10T152/10495Pneumatic tire or inner tube
    • Y10T152/10666Automatic sealing of punctures [e.g., self-healing, etc.]
    • Y10T152/10675Using flowable coating or composition
    • Y10T152/10684On inner surface of tubeless tire
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T152/00Resilient tires and wheels
    • Y10T152/10Tires, resilient
    • Y10T152/10495Pneumatic tire or inner tube
    • Y10T152/10666Automatic sealing of punctures [e.g., self-healing, etc.]
    • Y10T152/10675Using flowable coating or composition
    • Y10T152/10684On inner surface of tubeless tire
    • Y10T152/10693Sealant in plural layers or plural pockets
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T152/00Resilient tires and wheels
    • Y10T152/10Tires, resilient
    • Y10T152/10495Pneumatic tire or inner tube
    • Y10T152/10666Automatic sealing of punctures [e.g., self-healing, etc.]
    • Y10T152/10675Using flowable coating or composition
    • Y10T152/10702Using flowable coating or composition within or part of construction of inflating inner tube
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T152/00Resilient tires and wheels
    • Y10T152/10Tires, resilient
    • Y10T152/10495Pneumatic tire or inner tube
    • Y10T152/10666Automatic sealing of punctures [e.g., self-healing, etc.]
    • Y10T152/10729Automatic sealing of punctures [e.g., self-healing, etc.] with reinflating means

Abstract

一种将材料层(25,26)施加到环面形式的力车轮胎(20)内壁的方法,该轮胎具有内壁(28)和外壁(29)并且具有由两个侧壁(21)延伸的胎冠(22),两个胎圈(23a,23b)以及设置在所述胎圈中的两个胎圈钢丝(30a,30b),所述轮胎具有给定的标定充气压力,该方法包括以下步骤:-将轮胎(20)里面翻到外面从而将内壁(28)翻到环面外侧并且将外壁(29)翻到环面内侧;-通过向所述外壁(29)施加超过所述轮胎标定充气压力的内部充气压力从而使轮胎的外部环面壁(29)延展;-将材料层(25,26)施加到轮胎(20)的内壁(28);并且-将轮胎(20)里面翻到外面从而将内壁(28)和外壁(29)翻回到它们的最初位置。

Description

用于在力车轮胎内施加材料层的方法
技术领域
本发明涉及一种无内胎力车轮胎,该无内胎力车轮胎包括设置在内壁上的自密封层,从而在使用中封堵住任意穿孔,并且更特别地涉及一种在力车轮胎内施加这种材料层的方法。
背景技术
刺孔的问题,即不管一个或多个轮胎的压力的大量缺失或完全缺失如何允许车辆持续行进、或者如何避免穿孔后的空气泄露,能够一直回溯到装备有充气轮胎的车轮使用的最初时期。
通常提出的一种解决方案是在轮胎内壁上增加自密封层。
文献US 4426468显示了一种力车轮胎的示例,该轮胎的内壁上包括自密封层。然而,由于这种轮胎非常高的柔韧性,该文献强调了在硫化之后将自密封产品层设置到力车轮胎内是非常困难的,并且提出了在硫化之前将自密封层设置在气密层与胎体帘布层之间。
发明内容
本发明的主题是一种将材料层施加到环面形式的力车轮胎内壁的方法,该轮胎具有内壁和外壁以及具有由两个侧壁延伸的胎冠、两个胎圈以及设置在所述胎圈中的两个胎圈钢丝,该轮胎具有给定的标定充气压力,所述方法包括以下步骤:
-将轮胎里面翻到外面,从而将内壁翻到环面外侧并且将外壁翻到环面内侧;
-通过向外壁施加超过所述轮胎标定充气压力的内部充气压力从而使轮胎的外部环面壁延展;
-将材料层施加到轮胎的内壁;以及
-将轮胎里面翻到外面,从而将内壁和外壁翻回到它们的最初位置。
在优选实施例中,鉴于对无内胎轮胎而言,轮胎的给定标定充气压力为大约2bar,那么内部压力在3到8bar之间。
有利地,在材料层施加之前,在轮胎内壁上进行清洁操作。
材料层通过直接挤压渣沫(skim)或条带形式的材料被施加到轮胎壁上。
根据本发明的方法特别适合于设置自密封层或者自密封叠层,该自密封叠层包括涂覆有可延展热塑性膜的自密封材料层。
自密封层由此在压力的情况下尤为有利,所述压力有助于良好的自密封。
通过接下来的描述并且参考附图,本发明的其它特征和优点将会变得清楚,所述附图显示了本发明的实施例,作为非限制性示例。
附图说明
接下来的描述中给出了与施加自密封层或自密封叠层相对应的所有实施例细节,该描述附有图1到9,其中:
图1显示了结合有自密封叠层的力车轮胎的局部径向横截面;
图2显示了将自密封层施加到力车轮胎的第一步骤;
图3显示了里面翻到外面之后的力车轮胎;
图4显示了设置在充气鼓上面的里面翻到外面的力车轮胎;
图5显示了给里面翻到外面的轮胎充气的阶段;
图6显示了充气后的里面翻到外面的轮胎;
图7显示了施加自密封层;
图8显示了图7中的轮胎被翻回到正常的圆形;以及
图9显示了图8中的轮胎被翻回到正常的圆形。
具体实施方式
图1显示了包括自密封叠层的力车轮胎。
轮胎20包括由两个侧壁21延伸的胎冠22以及两个胎圈23a和23b。胎体加强件(未示出)从一个胎圈到另一个胎圈在侧壁和胎冠中延伸。胎面24设置在胎冠处的胎体加强件上。该轮胎包括自密封叠层25。该叠层25由涂覆有可延展热塑性膜27的自密封层26所构成。可延展热塑性膜与轮胎内腔的空气接触。叠层25大体上只围绕着轮胎20的胎冠22延伸。
下面结合图2到9描述将根据本发明的自密封叠层施加在力车轮胎内壁上。如引用的专利US4424295中所强调的,由于这种类型轮胎的极大柔韧性,因此在硫化之后难于将自密封产品层设置到力车轮胎的内侧。根据本发明的方法使得这种施加能够容易地实现。
图2显示了根据本发明的施加方法的第一步骤,用于将自密封叠层施加到力车轮胎。具体地,该轮胎20包括两个侧壁21和胎面24,并且具有内壁28和外壁29。第一步骤包括将轮胎里面翻到外面从而使得内壁28处于轮胎外侧以及外壁29处于内侧。里面翻到外面是操作还会使得两个胎圈23a和23b处于轴向颠倒的位置,如图2和3所示,并且该操作可在图2中所示箭头表示的方向上进行。
在力车轮胎的情况下,由于弯曲胎圈钢丝30的极大柔韧性,使其容易进行操纵以及折叠而不会经受永久变形,因此这种里面翻到外面的操作非常简单,同时仍然保持基本上不可延展,从而能够将胎圈锚固到轮缘座中。里面翻到外面操作可以手动完成。
图3显示了里面翻到外面的轮胎20。
接下来,里面翻到外面的轮胎20被设置在充气鼓50上(在图4中示意性地显示),该充气鼓具有两个凸缘51和52以及薄膜53,所述凸缘被设计用于容纳轮胎的胎圈23,所述薄膜用于密封由鼓、凸缘和薄膜所形成的凹腔54。两个胎圈钢丝30使得两个胎圈能够被锚固到凸缘51和52上并且允许在凹腔54中施加高充气压力。
凹腔54随后充气,同时使两个凸缘51和52靠近在一起,如图5所示。凹腔54的内部压力Pc使薄膜53紧靠着轮胎外壁29。图5的两个箭头显示了使两个凸缘51,52靠近在一起的轴向运动的方向。
在图6中,使两个凸缘51和52靠近在一起的轴向运动已被完成并且凹腔54中的内部压力升高到数值Pf。优选地,该压力Pf基本上大于轮胎20的标定充气压力,从而使轮胎20的胎体加强件处于一种超过使用期间轮胎通常承受的延展状态。
该充气压力Pf还具有以下优点:给予了由此里面翻到外面进行固定的轮胎20以足够充分的整体刚度,从而能够将自密封叠层25施加到内壁28。
在施加叠层25之前,可以在轮胎上进行清洁操作。该清洁操作可以是通过刷净轮胎来简单地去除灰尘,或者可以使用水或者任意其它适当物质及方法。
图7显示了轮胎20,并且叠层25设置在内壁28上。事先通过将渣沫材料挤压到期望宽度和厚度以及通过沉积到保护膜(例如硅化膜)上而生产出叠层,并且在卷盘上缠绕。在施加到轮胎期间,渣沫材料层围绕着轮胎缠绕,在渣沫材料施加期间剥去硅化保护膜并且使轮胎旋转。随后施加热塑性膜27。
优选地,在缠绕之前,热塑性膜27以叠层卷盘被卷绕的方式施加到渣沫材料的自由壁,以便于施加到轮胎20,所述施加在单一操作中进行。
自密封层还可通过缠绕厚度及宽度小于期望尺寸的条带而被施加。
最后,自密封材料26可直接挤压到轮胎内壁28上并且热塑性膜27随后被卷绕。
在叠层25被施加之后,轮胎通过第二次里面翻到外面操作而翻回到正常的圆形,如图8中所示。随后获得了图9中所示的轮胎。
应当知道的是,叠层25的自密封层26在里面翻到外面操作之后处于与轮胎20标定形状所占据空间以及与凹腔54的瘪掉相关联的压缩状态,叠层25的自密封层26无任何特定压力地设置在充气到Pf的轮胎内壁28上。由于是在凹腔54中的压力超过标定充气压力Pi的情况下进行施加,因此当轮胎充气到其标定充气压力时,该压缩状态必须被保持。这种压缩状态对自密封层26和自密封叠层25的有效性是极为有利的。当标定充气压力Pi为2bar时,施加的压力可以高达6或者甚至8bar。
本发明通过施加自密封层或叠层作为示例进行了描述,但是它可应用于任意类型的材料层。具体地,它可以用于施加气密层,而且例如容易固定包括传感器的胎垫(patch)。
本发明并不局限于所描述及显示的示例,并且可以对其进行各种改进,而不会脱离由附加权利要求所限定的范围。

Claims (8)

1.一种将材料层(25,26)施加到环面形式的力车轮胎(20)的内壁的方法,该轮胎具有内壁(28)和外壁(29)并且具有由两个侧壁(21)延伸的胎冠(22)、两个胎圈(23a,23b)以及设置在所述胎圈中的两个胎圈钢丝(30a,30b),所述轮胎具有给定的标定充气压力,该方法包括以下步骤:
-将轮胎(20)里面翻到外面,从而将内壁(28)翻到环面外侧并且将外壁(29)翻到环面内侧;
-通过向所述外壁(29)施加超过所述轮胎的标定充气压力的内部充气压力,从而使轮胎的外部环面壁(29)延展;
-将材料层(25,26)施加到轮胎(20)的内壁(28);并且
-将轮胎(20)里面翻到外面,从而将内壁(28)和外壁(29)翻回到它们的最初位置。
2.如权利要求1所述的方法,其特征在于,所述内部充气压力在3到8bar之间。
3.如权利要求1或2所述的方法,其特征在于,在施加所述材料层(25,26)之前,在轮胎的内壁(28)上进行清洁操作。
4.如权利要求1或2所述的方法,其特征在于,所述材料层(26)通过材料的直接挤压被施加到轮胎的内壁(28)上。
5.如权利要求1或2所述的方法,其特征在于,所述材料层(26)通过材料条带的直接挤压被施加到轮胎的内壁(28)上。
6.如权利要求1或2所述的方法,其特征在于,所述轮胎(20)是无内胎轮胎。
7.如权利要求1或2所述的方法,其特征在于,所述材料是自密封产品。
8.如权利要求1或2所述的方法,其特征在于,被施加的材料层是自密封叠层(25),所述叠层包括涂覆有可延展热塑性膜(27)的自密封材料层(26)。
CN200880022235.3A 2007-06-28 2008-06-19 用于在力车轮胎内施加材料层的方法 Active CN101687370B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0704639 2007-06-28
FR0704639A FR2917992B1 (fr) 2007-06-28 2007-06-28 Procede d'application d'une couche de materiau a l'interieur d'un pneumatique pour cycle.
PCT/EP2008/057798 WO2009000744A1 (fr) 2007-06-28 2008-06-19 Procédé d'application d'une couche de matériau à l'intérieur d'un pneumatique pour cycle

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EP2459400B1 (fr) 2009-07-31 2013-06-05 Compagnie Generale Des Etablissements Michelin Bandage pneumatique avec couche auto-obturante integree
FR2949998B1 (fr) 2009-09-15 2011-10-07 Michelin Soc Tech Bandage pneumatique avec couche auto-obturante integree
IT1396617B1 (it) 2009-11-25 2012-12-14 Pirelli Metodo per controllare selettivamente la capacita' auto-sigillante di un pneumatico e pneumatico auto-sigillante per ruote di veicoli
FR2953760B1 (fr) 2009-12-14 2013-01-11 Michelin Soc Tech Bandage pneumatique avec couche auto-obturante integree
FR2962936B1 (fr) * 2010-07-21 2012-07-27 Michelin Soc Tech Procede et dispositif de controle et/ou d'ajustement de pression pour un ensemble monte
CN104309414B (zh) * 2014-09-30 2017-02-01 杭州绿奇科技有限公司 一种防刺扎轮胎的贴片方法、贴片机及其使用方法
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ATE546278T1 (de) 2012-03-15
US20100230865A1 (en) 2010-09-16
JP2010531250A (ja) 2010-09-24
FR2917992B1 (fr) 2012-08-10
JP5341886B2 (ja) 2013-11-13
CN101687370A (zh) 2010-03-31
EP2162276A1 (fr) 2010-03-17
FR2917992A1 (fr) 2009-01-02
KR20100045978A (ko) 2010-05-04
US7959849B2 (en) 2011-06-14
EP2162276B1 (fr) 2012-02-22

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