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    TYRE FOR VEHICLE WHEELS
    4.
    发明申请
    TYRE FOR VEHICLE WHEELS 审中-公开

    公开(公告)号：WO2020128943A2

    公开(公告)日：2020-06-25

    申请号：PCT/IB2019/061088

    申请日：2019-12-19

    Applicant: PIRELLI TYRE S.P.A.

    Inventor： AGRESTI, Simone ,  DAGHINI, Guido Luigi ,  RAMPANA, Barbara

    IPC: B60C9/00

    Abstract: A tyre for vehicle wheels comprises a support structure and a tread band arranged in a radially outer position with respect to the support structure. The support structure comprises a plurality of hybrid reinforcing cords (10). Each of the hybrid reinforcing cords (10) has at least two strands (20) twisted together with a predetermined twisting pitch. Each of said at least two strands (20) comprises at least one monofilament textile wire (21) and at least one multifilament textile yarn (22) comprising a plurality of textile filaments (22a). In any cross section of the hybrid reinforcing cord (10), said at least one monofilament textile wire (21) is at least partially embedded in the filaments (22a) of said at least one multifilament textile yarn (22).

    REINFORCEMENT CORD AND TYRE FOR VEHICLE WHEELS COMPRISING SUCH A REINFORCEMENT CORD
    5.
    发明申请
    REINFORCEMENT CORD AND TYRE FOR VEHICLE WHEELS COMPRISING SUCH A REINFORCEMENT CORD 审中-公开

    公开(公告)号：WO2014083535A3

    公开(公告)日：2014-06-05

    申请号：PCT/IB2013/060490

    申请日：2013-11-29

    Applicant: PIRELLI TYRE S.P.A.

    Inventor： AGRESTI, Simone ,  CRISTOFANI, Fabrizio ,  PIERALLI, Andrea

    IPC: D07B1/06

    Abstract: A reinforcement cord (10), configured to be used for example in a tyre (100) for vehicle wheels, comprises at least two steel wires (1) having a carbon content lower than or equal to about 0.40 % and chrome content lower than or equal to about 2% by weight. Such steel wires (1) are twisted together with a winding pitch (P) greater than or equal to about 14 mm. The use of steel having low carbon content allows the costs to be advantageously kept down without negatively impacting on the rigidity of the reinforcement cord. The possibility of using winding pitches of at least about 14 mm makes it possible to increase both the rigidity of the reinforcement cord and the productivity in the winding step, with consequent further reduction of the production costs, and without there being problems of fraying.

    TYRE FOR VEHICLE WHEELS
    6.
    发明申请
    TYRE FOR VEHICLE WHEELS 审中-公开

    公开(公告)号：WO2021255558A1

    公开(公告)日：2021-12-23

    申请号：PCT/IB2021/054680

    申请日：2021-05-28

    Applicant: PIRELLI TYRE S.P.A.

    Inventor： AGRESTI, Simone ,  DAGHINI, Guido Luigi

    IPC: B60C9/00 ,  D02G3/48 ,  B60C9/0007 ,  B60C9/0028 ,  B60C9/005 ,  B60C9/0064 ,  D02G3/36

    Abstract: A tyre for vehicle wheels comprises a support structure and a tread band arranged in a radially outer position with respect to the support structure. The support structure comprises at least one reinforcing layer including a plurality of hybrid reinforcing cords (10') each having a metallic wire (21) twisted together with a multifilament textile yarn (22) comprising a plurality of filaments (23). In any cross section of each of said hybrid reinforcing cords (10'), the metallic wire (21) is at least partially embedded in the filaments (23) of the multifilament textile yarn (22).

    SYSTEM FOR WIRE SAWING OF INGOT MATERIALS, AND SAW WIRE USED IN SAID SYSTEM
    8.
    发明申请
    SYSTEM FOR WIRE SAWING OF INGOT MATERIALS, AND SAW WIRE USED IN SAID SYSTEM 审中-公开
    用于电焊丝的材料系统和用于在系统中使用的电线

    公开(公告)号：WO2014102662A1

    公开(公告)日：2014-07-03

    申请号：PCT/IB2013/061036

    申请日：2013-12-17

    Applicant: PIRELLI TYRE S.P.A.

    Inventor： AGRESTI, Simone ,  DONATINI, Leonardo ,  CRISTOFANI, Fabrizio

    IPC: B23D61/18

    CPC classification number: B23D61/185 ,  B28D5/045

    Abstract: The present invention refers to a system for wire sawing of ingot materials comprising: a saw wire (30) having an elongated shape in cross-section, said wire being twisted substantially about its own longitudinal axis (X) according to a helix having a pitch (P) larger than or equal to about 2 mm; an operating station (40) wherein a saw material is associated to at least one portion (31a-31d) of said wire (30); a drive device (50) acting on said wire (30) to bring said at least one portion (31a-31d) of wire (30) at an ingot (20) of a material to be sawn, and to withdraw by sawing at least one portion of said ingot (20). A method for wire sawing the ingot materials and a saw wire used in said system and in said method are also described.

    Abstract translation: 本发明涉及一种用于线材锯切材料的系统，包括：具有细长形状的锯条（30），所述线材基本上绕其自身的纵向轴线（X）扭转，所述螺旋线具有螺距 （P）大于或等于约2mm; 操作台（40），其中锯材与所述线（30）的至少一部分（31a-31d）相关联; 驱动装置（50），其作用在所述导线（30）上以将所述至少一个部分（31a-31d）的线（30）连接到要锯切的材料的锭（20）上，并且通过至少锯切 所述锭（20）的一部分。 还描述了用于在所述系统和所述方法中使用的锭材料和锯线的线锯的方法。

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