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    METHODS FOR RETREADING A TIRE
    2.
    发明公开
    METHODS FOR RETREADING A TIRE 审中-公开
    方法翻新轮胎

    公开(公告)号：EP2658731A1

    公开(公告)日：2013-11-06

    申请号：EP11854266.1

    申请日：2011-11-29

    申请人： MICHELIN Recherche et Technique S.A. ,  Compagnie Générale des Etablissements Michelin

    发明人： COLBY, E. Bruce, ,  TSIHLAS, Dimitri, G. ,  ZARAK, Cesar, E.

    IPC分类号： B60C11/02

    CPC分类号： B60C11/00 ,  B29D30/30 ,  B29D30/52 ,  B29D30/56 ,  B60C11/02

    摘要： Embodiments include methods for retreading a tire, which include providing a tire carcass for retreading, the tire carcass having a pre-existing tread layer including one or more voids extending into the tread layer thickness from an outer side. A bonding layer is applied along an outer side of the pre-existing tread layer, the bonding layer substantially filling the voids arranged along the outer side of the pre-existing tread layer to provide an outer surface for receiving the pre-cured bonding layer. A pre-cured tread layer is applied along an outer side of the bonding layer such that the bonding layer is arranged between the pre-cured tread layer and the pre-existing tread layer. The pre-cured tread layer is bonded to the tire carcass to form a retreaded tire having a retreaded tire tread. Grooves are then formed in the retreaded tire tread along a ground-engaging, outer side of the retreaded tire tread.

    METHODS AND APPARATUS FOR CURING RETREADED TIRES
    4.
    发明公开
    METHODS AND APPARATUS FOR CURING RETREADED TIRES 审中-公开
    方法和设备固化翻新轮胎

    公开(公告)号：EP2748016A2

    公开(公告)日：2014-07-02

    申请号：EP11873287.4

    申请日：2011-09-30

    申请人： Michelin Recherche et Technique S.A. ,  Compagnie Générale des Etablissements Michelin

    发明人： COLBY, E., Bruce ,  TSIHLAS, Dimitri, G. ,  ZARAK, Cesar, E.

    IPC分类号： B60C11/02

    CPC分类号： B29D30/542 ,  B60C11/02

    摘要： Embodiments of the invention include methods and apparatus for constraining a tread in a desired arrangement about a tire carcass during retreading operations. Such methods include the steps of providing a annular tire carcass configured for receiving a tread. Such methods also include the step of arranging a tread annularly about the precured tire carcass in a desired position to form an assembled retreaded tire. Such methods further include the step of arranging a retread curing membrane about an outer side of the tread, the curing membrane including an interior surface arranged to engage the outer side of the tread and including one or more protrusions extending from the membrane interior surface and into a void of the outer side of the tread. In other embodiments, a separate insert containing protrusions is arranged between a curing membrane and a tire tread for retread curing operations.

    VARIABLE HEIGHT GROOVES IN MULTIPLE WEAR LAYER TREADS FOR RETREADED TIRES
    6.
    发明公开
    VARIABLE HEIGHT GROOVES IN MULTIPLE WEAR LAYER TREADS FOR RETREADED TIRES 审中-公开
    具有可变高度槽与磨损翻新轮胎多层SECTIONS

    公开(公告)号：EP2773518A1

    公开(公告)日：2014-09-10

    申请号：EP11875252.6

    申请日：2011-10-31

    申请人： MICHELIN Recherche et Technique S.A. ,  Compagnie Générale des Etablissements Michelin

    发明人： COLBY, E., Bruce ,  TSIHLAS, Dimitri, G. ,  ZARAK, Cesar, E.

    IPC分类号： B60C11/03

    CPC分类号： B60C11/13 ,  B29D30/56 ,  B60C11/02 ,  B60C11/0309 ,  B60C2011/0353 ,  B60C2011/0355

    摘要： Particular embodiments of the present invention include multi-wear layer treads having variable depth grooves for retreaded tires, retreaded tires, and methods of forming retreaded tires. In particular embodiments, such multi-wear layer tire treads include a thickness bounded depthwise by a top side configured to engage a ground surface during tire operation and a bottom side configured for attachment to a tire carcass, the thickness extending laterally between opposing side edges and longitudinally in a lengthwise direction of the tread. Such tread may further include a top groove extending a variable depth into the tread thickness from the top side, the top groove having a groove bottom that varies depthwise within the tread thickness to form multiple wear layers. In other embodiments, top grooves may or may not be variable depth grooves, while the tread further include a bottom groove extending a variable depth into the tread thickness from the bottom side.