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1. 发明申请

WO2006037369A1 PROCESS FOR MANUFACTURING ELASTOMERIC TIRE COMPONENTS 审中-公开
标题翻译：制造弹性体轮胎组件的方法
公开(公告)号：WO2006037369A1
公开(公告)日：2006-04-13
申请号：PCT/EP2004/011431
申请日：2004-10-08
申请人： PIRELLI PNEUMATICI S.P.A. , D'ORIA, Francesco , SABBATANI, Enrico , MARCHINI, Maurizio
发明人： D'ORIA, Francesco , SABBATANI, Enrico , MARCHINI, Maurizio
IPC分类号： B29C47/92
CPC分类号： B29C47/82 , B29C35/041 , B29C47/0004 , B29C47/0019 , B29C47/02 , B29C47/0866 , B29C47/364 , B29C47/367 , B29C47/827 , B29C47/842 , B29C47/862 , B29C47/92 , B29C2035/043 , B29C2035/1616 , B29C2035/1633 , B29C2947/92704 , B29C2947/92895 , B29D30/16 , B29K2021/00 , B29K2105/24 , B29K2301/10 , B29L2030/00
摘要： A process for manufacturing an elastomeric tire component comprising the productive steps of a) preparing an elongated element including a cross-linkable elastomeric material by feeding it to an extruding device comprising a plurality of units each having a respective thermal inertia, b) delivering said elongated element onto a building support, and further comprising at least one non-productive step of c) submitting at least one of the units of the extruding device to a thermal transition, selected from heating or cooling, substantially reducing the risk of scorching during the thermal transition from and to the non-productive step ranking the units according to their thermal inertia and heating the units starting with the top-ranked unit sequentially to the bottom-ranked unit to reach the respective working temperature or cooling the units starting from the maximum working temperature unit sequentially to the minimum working temperature unit to reach the respective non-working temperature.
摘要翻译：一种用于制造弹性体轮胎部件的方法，包括以下生产步骤：a）通过将包括可互连的弹性体材料的细长元件进给到包括多个具有各自的热惯性的单元的挤压装置来制备细长元件，b）并且还包括至少一个非生产性步骤，c）将挤出装置的至少一个单元提交到选自加热或冷却的热转变，从而大大降低了在加热或冷却期间焦烧的风险从非生产性转变到非生产性阶段，根据其热惯性对单位进行排序，并将从顶级单元开始的单元依次加热到底层单位以达到各自的工作温度或从最大工作开始冷却单元温度单位依次到最小工作温度单位达到相应的非工作状态 ATURE。

2. 发明申请

WO2005000559A1 A PROCESS FOR MANUFACTURING ELASTOMERIC COMPONENTS OF A TYRE FOR VEHICLE WHEELS 审中-公开
标题翻译：制造车轮轮胎弹塑性成分的方法
公开(公告)号：WO2005000559A1
公开(公告)日：2005-01-06
申请号：PCT/IB2003/002520
申请日：2003-06-30
申请人： PIRELLI PNEUMATICI S.p.A , D'ORIA, Francesco , CARETTA, Renato , SABBATANI, Enrico , MARCHINI, Maurizio
发明人： D'ORIA, Francesco , CARETTA, Renato , SABBATANI, Enrico , MARCHINI, Maurizio
IPC分类号： B29C47/92
CPC分类号： B29D30/3028 , B29C47/0019 , B29C47/364 , B29C47/367 , B29C47/38 , B29C47/92 , B29C2947/92019 , B29C2947/9239 , B29C2947/924 , B29C2947/92571 , B29C2947/92942 , B29D30/1628
摘要： A process for manufacturing elastomeric components of a tyre (3) for vehicle wheels comprising the steps of: feeding a continuous elongated element (20) from a delivery member (19) for application of said elongated element (20) onto a building support (18), by exerting a feeding pressure inside said delivery member (19); giving the support (18) a rotatory motion around a geometrical rotation axis (X-X) thereof, so that the elongated element (20) is circumferentially distributed on the support (18); carrying out controlled relative displacements for transverse distribution between said support (18) and delivery member (19) to form a tyre (3) component (9, 12, 13, 14, 15, 16, 17) with said elongated element (20) which is defined by a plurality of coils (20a) laid in a preestablished deposition pattern depending on a predetermined cross-section outline to be given to said component (9, 12, 13, 14, 20 15, 16, 17); stopping said step of feeding said elongated element (20) when formation of said component (9, 12, 13, 14, 15, 16, 17) has been completed; exerting a counter-pressure inside said delivery member (19).
摘要翻译：一种用于制造用于车轮的轮胎（3）的弹性体部件的方法，包括以下步骤：从递送部件（19）供给连续细长元件（20），以将所述细长元件（20）施加到建筑物支撑件（18）上），通过在所述输送构件（19）内施加进料压力; 使得所述支撑件（18）围绕其几何旋转轴线（X-X）旋转运动，使得所述细长元件（20）周向地分布在所述支撑件（18）上; 在所述支撑件（18）和输送构件（19）之间执行用于横向分布的受控相对位移以形成具有所述细长元件（20）的轮胎（3）部件（9,12,13,14,15,16,17）其由根据要赋予所述部件（9,12,13,14，20,15,16,17）的预定横截面轮廓而放置在预先建立的沉积图案中的多个线圈（20a）限定; 当所述部件（9,12,13,14,15,16,17）的形成已经完成时停止所述进给所述细长元件（20）的步骤; 在所述递送部件（19）内施加反压力。

3. 发明申请

WO2003101712A1 A METHOD AND APPARATUS FOR MANUFACTURING ELASTOMERIC MATERIAL COMPONENTS OF A TYRE FOR VEHICLE WHEELS 审中-公开
标题翻译：用于制造车轮轮胎弹性体材料组分的方法和装置
公开(公告)号：WO2003101712A1
公开(公告)日：2003-12-11
申请号：PCT/EP2003/005320
申请日：2003-05-21
申请人： PIRELLI PNEUMATICI S.P.A. , CARETTA, Renato , MARCHINI, Maurizio , SABBATANI, Enrico
发明人： CARETTA, Renato , MARCHINI, Maurizio , SABBATANI, Enrico
IPC分类号： B29D30/16
CPC分类号： B29D30/1628 , B29C47/0002 , B29C47/0014 , B29C47/0038 , B29C47/026 , B29C47/0866 , B29C47/364 , B29C47/367 , B29C47/38 , B29C47/92 , B29C2947/92019 , B29C2947/92104 , B29C2947/92304 , B29C2947/92314 , B29C2947/9238 , B29C2947/92409 , B29C2947/9258 , B29C2947/9259 , B29C2947/92609 , B29C2947/92885 , B29C2947/92923 , B29C2947/92933 , B29C2947/92942 , B29D30/1621 , B29D30/62 , B29D2030/1678 , B29K2021/00 , B29L2030/002
摘要： A method and apparatus for manufacturing elastomeric components of a tyre, said method comprising: feeding a continuous elongated element (20) from a delivery member (19) disposed close to a toroidal support (18) for application of said elongated element (20) onto the toroidal support itself; giving the toroidal support (18) a rotatory motion for circumferential distribution around its geometrical rotation axis (X) ; moving said toroidal support (18) on a plurality of axes so as to carry out controlled relative displacements for transverse distribution between said toroidal support (18) and said delivery member (19) to form a component (9, 12, 13, 14, 15, 16, 17) of a tyre (3) with said elongated element (20) which is defined by a plurality of coils (20a) laid down in mutual side by side and superposed relationship in a pre-established deposition pattern depending on a predetermined cross-section outline to be given to said component (9, 12, 13, 14, 15, 16, 17), wherein a step of signalling the presence of said elongated element (20) coming out of said delivery member (19) is provided.
摘要翻译：一种用于制造轮胎的弹性体部件的方法和装置，所述方法包括：从靠近环形支撑件（18）设置的输送构件（19）供给连续细长元件（20），以将所述细长元件（20）施加到环形支撑本身; 给予环形支撑件（18）围绕其几何旋转轴线（X）周向分布的旋转运动; 将所述环形支撑件（18）移动到多个轴线上，以便在所述环形支撑件（18）和所述输送构件（19）之间执行用于横向分配的受控相对位移，以形成部件（9,12,13,14，具有所述细长元件（20）的轮胎（3）的15,16,17，其中所述细长元件由相互并排放置的多个线圈（20a）限定，并且根据给予所述组件（9,12,13,14,15,16,17）的预定横截面轮廓，其中发出从所述传送构件（19）出来的所述细长元件（20）的存在的步骤，被提供。

4. 发明申请

WO2004022322A1 A METHOD AND APPARATUS FOR MANUFACTURING ELASTOMERIC COMPONENTS OF A TYRE FOR VEHICLE WHEELS 审中-公开
标题翻译：用于制造车轮轮胎弹性部件的方法和装置
公开(公告)号：WO2004022322A1
公开(公告)日：2004-03-18
申请号：PCT/IB2002/001935
申请日：2002-05-31
申请人： PIRELLI PNEUMATICI S.P.A. , CARETTA, Renato , MARCHINI, Maurizio , SABBATANI, Enrico
发明人： CARETTA, Renato , MARCHINI, Maurizio , SABBATANI, Enrico
IPC分类号： B29D30/16
CPC分类号： B29D30/1628 , B29C47/0002 , B29C47/0014 , B29C47/0038 , B29C47/026 , B29C47/0866 , B29C47/364 , B29C47/367 , B29C47/38 , B29C47/92 , B29C2947/92019 , B29C2947/92104 , B29C2947/92304 , B29C2947/92314 , B29C2947/9238 , B29C2947/92409 , B29C2947/9258 , B29C2947/9259 , B29C2947/92609 , B29C2947/92885 , B29C2947/92923 , B29C2947/92933 , B29C2947/92942 , B29D30/1621 , B29D30/62 , B29D2030/1678 , B29K2021/00 , B29L2030/002
摘要： A method and apparatus for manufacturing elastomeric material components of a tyre for vehicle wheels, said method comprising the steps of: feeding a continuous elongated element (20) from a delivery member (19) disposed close to a toroidal support (18) for application of said elongated element (20) onto the toroidal support itself; giving the toroidal support (18) a rotatory motion for circumferential distribution around its geometrical rotation axis (X), so that the elongated element (20) is circumferentially distributed on the toroidal support (18); moving said toroidal support (18) on a plurality of axes so as to carry out controlled relative displacements for transverse distribution between said toroidal support (18) and said delivery member (19) to form a component (9, 12, 13, 14, 15, 16, 17) of a tyre (3) with said elongated element (20) which is defined by a plurality of coils (20a) laid down in mutual side by side and superposed relationship in a preestablished deposition pattern depending on a predetermined cross-section outline to be given to said component (9, 12, 13, 14, 15, 16, 17), wherein the step of feeding said continuous elongated element (20) takes place by extrusion of elastomer material through at least one extrusion screw (22) and at least one gear pump (23) associated therewith.
摘要翻译：一种用于制造用于车轮的轮胎的弹性体材料部件的方法和装置，所述方法包括以下步骤：从靠近环形支撑件（18）设置的输送构件（19）供给连续细长元件（20），以用于所述细长元件（20）到环形支撑件本身上; 给予环形支撑件（18）围绕其几何旋转轴线（X）周向分布的旋转运动，使得细长元件（20）沿周向分布在环形支撑件（18）上; 将所述环形支撑件（18）移动到多个轴线上，以便执行用于在所述环形支撑件（18）和所述输送构件（19）之间的横向分配的受控相对位移，以形成部件（9,12,13,14， 15，16,17），其中所述细长元件（20）由多个彼此并排放置的线圈（20a）限定，并且根据预定的十字架在预先建立的沉积图案中叠加的关系给予所述组件（9,12,13,14,15,16,17）的截面轮廓，其中进给所述连续细长元件（20）的步骤通过弹性体材料挤出通过至少一个挤出螺杆（22）和与其相关联的至少一个齿轮泵（23）。

5. 发明申请

WO2005102743A1 WHEEL HAVING A CONTROLLED PRESSURE AND A PRESSURE RESERVOIR 审中-公开
标题翻译：具有控制压力和压力储备的车轮
公开(公告)号：WO2005102743A1
公开(公告)日：2005-11-03
申请号：PCT/IB2004/001236
申请日：2004-04-23
申请人： PIRELLI PNEUMATICI S.P.A. , CARETTA, Renato , PIANTANIDA, Pier Giuseppe , SANGIOVANNI, Stefano , MARCHINI, Maurizio , SGALARI, Giorgia
发明人： CARETTA, Renato , PIANTANIDA, Pier Giuseppe , SANGIOVANNI, Stefano , MARCHINI, Maurizio , SGALARI, Giorgia
IPC分类号： B60C23/00
CPC分类号： B60C23/004 , Y10T152/10522 , Y10T152/10729
摘要： A wheel having a controlled pressure comprises: a rim (2) associated with a tank (4) adapted to be filled with a fluid to a first pressure; a tyre (3) mounted on said rim (2) and having an inner volume (3') inflated to an operating pressure at a reference temperature, said operating pressure being lower than said first pressure; at least one valve assembly (5) adapted to establish a communication between said tank (4), the inner volume (3') of said tyre (3) and the external environment; said valve assembly (5) comprising a command valve (8), an exhaust valve (9) and a compensation valve (10) operatively associated with each other; wherein: said command valve (8) controls communication between said tank (4) and said inner volume (3') of the tyre (3); said exhaust valve (9) is connected to the external environment, to said inner volume (3'), to said command valve (8) and compensation valve (10) ; said compensation valve (10) is connected to said exhaust valve (9) and said command valve (8) ; wherein said command valve (8) comprises an inner chamber (27) connected with said exhaust valve (9) and said compensation valve (10) , in such a manner that said command valve (8) is operated by said exhaust valve (9) and said compensation valve (10) through a pressure variation of said inner chamber (27) in response to a variation of the inner pressure of the tyre.
摘要翻译：具有受控压力的轮包括：与罐（4）相关联的边缘（2），所述罐适于将流体填充到第一压力; 轮胎（3），其安装在所述轮辋（2）上并且具有膨胀到参考温度下的操作压力的内部容积（3'），所述操作压力低于所述第一压力; 适于建立所述罐（4），所述轮胎（3）的内部容积（3'）与所述外部环境之间的连通的至少一个阀组件（5）所述阀组件（5）包括指令阀（8），排气阀（9）和可操作地相关联的补偿阀（10）; 其中：所述指令阀（8）控制所述罐（4）和所述轮胎（3）的所述内部容积（3'）之间的连通; 所述排气阀（9）连接到外部环境，所述内部容积（3'）连接到所述指令阀（8）和补偿阀（10）上。所述补偿阀（10）连接到所述排气阀（9）和所述指令阀（8）; 其特征在于，所述指令阀（8）包括与所述排气阀（9）和所述补偿阀（10）连接的内室（27），所述指令阀（8）由所述排气阀（9）操作，和所述补偿阀（10）通过所述内腔（27）的压力变化响应轮胎的内压的变化。

6. 发明申请

WO2006070412A1 METHOD AND APPARATUS FOR MANUFACTURING PNEUMATIC TYRES 审中-公开
标题翻译：制造气动轮胎的方法和装置
公开(公告)号：WO2006070412A1
公开(公告)日：2006-07-06
申请号：PCT/IT2004/000730
申请日：2004-12-28
申请人： PIRELLI PNEUMATICI S.P.A. , MARCHINI, Maurizio , MARIANI, Fiorenzo , MISANI. Pierangelo
发明人： MARCHINI, Maurizio , MARIANI, Fiorenzo , MISANI. Pierangelo
IPC分类号： B29D30/06 , B29C43/02
CPC分类号： B29D30/0605 , B29C33/08 , B29C43/021 , B29C43/104 , B29C2043/023 , B29D30/0601 , B29D30/0661 , B29D2030/063
摘要： A green tyre (50) disposed on a toroidal support (10) is introduced into a vulcanisation mould (102). The mould (102) is closed through axial approaching of a pair of half shells (130a, 130b) acting against the sidewalls (51) and the tread band (52) of the tyre (50). Circumferential sectors (140) set to operate against the tyre tread band (52) are maintained spaced apart from the tread band itself during admission of a working fluid designed to press the tyre (50) against the toroidal support (10). Subsequently said sectors are centripetally approached to cause penetration of forming ridges (141) movable in through slits (142) into the tread band (52), concurrently with a step of full moulding and vulcanisation of the tyre (50) carried out through admission of steam under pressure into the tyre itself.
摘要翻译：设置在环形支架（10）上的生轮胎（50）被引入硫化模具（102）中。模具（102）通过作用在轮胎（50）的侧壁（51）和胎面带（52）上的一对半壳（130a，130b）的轴向接近而闭合。在轮胎（50）抵靠环形支撑件（10）的工作流体入场期间，设置成抵靠轮胎胎面带（52）操作的环形扇区（140）在轮胎胎面带（52）的作用下保持与胎面带本身隔开。随后，所述部分向心地接近，以使通过狭缝142移动到胎面带（52）中的形成脊（141）的穿透同时与轮胎（50）的完全模制和硫化步骤同时进行，蒸汽在压力下进入轮胎本身。

7. 发明申请

WO2003092988A1 METHOD AND APPARATUS FOR MOULDING AND CURING A TYRE FOR VEHICLE 审中-公开
标题翻译：用于车辆轮胎成型和固化的方法和装置
公开(公告)号：WO2003092988A1
公开(公告)日：2003-11-13
申请号：PCT/IB2002/001432
申请日：2002-04-29
申请人： PIRELLI PNEUMATICI S.P.A , CARETTA, Renato , MARCHINI, Maurizio
发明人： CARETTA, Renato , MARCHINI, Maurizio
IPC分类号： B29D30/06
CPC分类号： B29C35/007 , B29C2035/048 , B29D30/0602 , B29D30/0661 , B29D2030/0667 , B29D2030/0675 , B29L2030/00
摘要： It is disclosed a method and an apparatus for moulding and curing a tyre for vehicle wheels, said method comprising the steps of : building a green tyre on a toroidal support (10) having an outer surface the shape of which substantially matches that of an inter surface of said green tyre; placing said green tyre carried by said toroidal support (10) into a moulding cavity (104) defined in a vulcanization mould (102), said moulding cavity (104) having walls conforming in shape to an outer surface of said tyre when vulcanization has been completed; pressing an outer surface of said green tyre against the walls of said moulding cavity (104) by means of a working fluid under pressure flowing in at least one diffusion gap between said outer surface of said toroidal support (10) and said inner surface of said green tyre; heating said working fluid under pressure so as to supply heat to said green tyre in order to enable vulcanization of same, wherein said working fluid under pressure in contact with said green tyre is submitted to circulation.
摘要翻译：公开了一种用于模制和固化用于车轮的轮胎的方法和装置，所述方法包括以下步骤：在具有外表面的环形支撑件（10）上构建生胎，其形状基本上与内轮所述生胎的表面; 将由所述环形支撑件（10）承载的所述生胎放置在限定在硫化模具（102）中的模制空腔（104）中，所述模制空腔（104）在硫化已经被形成时具有与所述轮胎的外表面一致的壁完成; 通过在所述环形支撑件（10）的所述外表面和所述环形支撑件（10）的所述内表面之间的至少一个扩散间隙中流动的压力下的工作流体将所述生胎的外表面压靠在所述模制腔（104）的壁上，生胎在压力下加热所述工作流体，以便向所述生胎供给热量，以使其能够进行硫化，其中与所述生胎接触的压力下的工作流体进行循环。

8. 发明申请

WO2005053942A1 PROCESS FOR MANUFACTURING A TYRE AND TOROIDAL SUPPORT FOR CARRYING OUT SAID PROCESS 审中-公开
标题翻译：用于制作轮胎的过程和用于执行加工过程的TOROIDAL支持
公开(公告)号：WO2005053942A1
公开(公告)日：2005-06-16
申请号：PCT/EP2003/013395
申请日：2003-11-28
申请人： PIRELLI PNEUMATICI S.P.A. , MARCHINI, Maurizio , MISANI, Pierangelo , FERRARI, Gianlorenzo
发明人： MARCHINI, Maurizio , MISANI, Pierangelo , FERRARI, Gianlorenzo
IPC分类号： B29D30/12
CPC分类号： B29D30/0661 , B29C35/02 , B29C43/203 , B29C59/002 , B29D30/0005 , B29D30/12 , B29D30/36 , B29D2030/0677
摘要： The present invention relates to a process for manufacturing a tyre comprising the steps of producing and assembling the tyre structural elements on a toroidal support (300)to form a green tyre, and the step of precuring at least an inner surface of the green tyre by heating the toroidal support. The radially inner surface of the toroidal support is provided with a plurality of protruding elements (207)so as to reduce the time required for the outer surface of the toroidal support to reach a temperature which is suitable for ensuring a uniform and homogeneous precuring of the inner surface of the green tyre, preferably of the inner surface and the bead regions of the green tyre.
摘要翻译：轮胎的制造方法技术领域本发明涉及一种轮胎的制造方法，其特征在于，包括以下步骤：在环状支撑体（300）上制造和组装轮胎结构体以形成生胎，以及通过加热环形支架。环形支撑件的径向内表面设置有多个突出元件（207），以便减少环形支撑件的外表面所需的时间达到适于确保均匀且均匀的预固化的温度生胎的内表面，优选为生胎的内表面和胎圈区域。

9. 发明申请

WO2003045674A1 METHOD FOR MAKING REINFORCING STRUCTURES FOR VEHICLES TYRES AND A TYRE OBTAINED THEREBY 审中-公开
标题翻译：制造车辆轮胎加固结构的方法及其获得的轮胎
公开(公告)号：WO2003045674A1
公开(公告)日：2003-06-05
申请号：PCT/IT2001/000584
申请日：2001-11-22
申请人： PIRELLI PNEUMATICI S.P.A. , MARIANI, Fiorenzo , MARCHINI, Maurizio
发明人： MARIANI, Fiorenzo , MARCHINI, Maurizio
IPC分类号： B29D30/08
CPC分类号： B29D30/72 , B29D30/08 , B29D2030/1678 , B60C9/00 , B60C9/09 , Y10T152/10819 , Y10T152/10828 , Y10T152/10855 , Y10T152/10864
摘要： Reinforcing structures (10) in a tyre (1) are each obtained by laying down a continuous thread-like element (11) according to undulated trajectories (11a) substantially concentric with the rotation axis (X) of the tyre (1). Each continuous thread-like element (11) is laid down in at least one layer, and the trajectory (11a) forms a plurality of waves (11b) along at least one line (t). Also described is a tyre (1) into which reinforcing structures (10) made in accordance with the invention are integrated.
摘要翻译：通过根据与轮胎（1）的旋转轴线（X）大致同心的波动轨迹（11a）放置连续的线状元件（11），可以获得轮胎（1）中的加强结构（10）。每个连续的线状元件（11）被放置在至少一层中，轨迹（11a）沿着至少一条线（t）形成多个波（11b）。还描述了根据本发明制成的加固结构（10）整合到其中的轮胎（1）。

10. 发明申请

WO2006070414A1 METHOD AND APPARATUS FOR MANUFACTURING PNEUMATIC TYRES 审中-公开
标题翻译：制造气动轮胎的方法和装置
公开(公告)号：WO2006070414A1
公开(公告)日：2006-07-06
申请号：PCT/IT2004/000732
申请日：2004-12-28
申请人： PIRELLI PNEUMATICI S.P.A. , MARCHINI, Maurizio , MARIANI, Fiorenzo , MISANI, Pierangelo
发明人： MARCHINI, Maurizio , MARIANI, Fiorenzo , MISANI, Pierangelo
IPC分类号： B29D30/06 , B29C43/02
CPC分类号： B29D30/0605 , B29C33/08 , B29C43/021 , B29C43/104 , B29C2043/023 , B29D30/06 , B29D30/0602 , B29D30/0661
摘要： A green tyre (50) disposed on a toroidal support (10) is introduced into a vulcanisation mould (102). The mould (102) is closed through axial approaching of a pair of sidewall plates (130a, 130b) acting against the sidewalls (51) of the tyre (50). Circumferential sectors (140) set to operate against the tyre tread band (52) are maintained spaced apart from the tread band itself during admission of a working fluid designed to press the tyre (50) against the toroidal support (10). Subsequently, said sectors are centripetally approached for penetration into the tread band (52) concurrently with a step of full moulding and vulcanisation of the tyre (50) carried out through admission of steam under pressure into the tyre itself.
摘要翻译：设置在环形支架（10）上的生轮胎（50）被引入硫化模具（102）中。模具（102）通过作用在轮胎（50）的侧壁（51）上的一对侧壁板（130a，130b）的轴向接近来封闭。在轮胎（50）抵靠环形支撑件（10）的工作流体入场期间，设置成抵靠轮胎胎面带（52）操作的环形扇区（140）在轮胎胎面带（52）的作用下保持与胎面带本身隔开。随后，通过在压力下进入蒸汽进入轮胎本身的轮胎（50）的完全模制和硫化的步骤，所述部分向心地接近以穿透胎面带（52）。

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