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    SCULPTURE POUR PNEUS DE VÉHICULE DE GENIE CIVIL
    1.
    发明公开
    SCULPTURE POUR PNEUS DE VÉHICULE DE GENIE CIVIL 有权
    冠结构为民用工程车轮胎

    公开(公告)号：EP2736735A1

    公开(公告)日：2014-06-04

    申请号：EP12742879.5

    申请日：2012-07-26

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

    发明人： CHAUVIN, Dominique

    IPC分类号： B60C11/11 ,  B60C11/12

    CPC分类号： B60C11/0304 ,  B60C11/0306 ,  B60C11/032 ,  B60C11/033 ,  B60C11/11 ,  B60C11/12 ,  B60C2011/0374 ,  B60C2011/133 ,  B60C2200/065

    摘要： The invention relates to a tire provided with a carcass reinforcement, on the exterior of which a crown reinforcement is radially mounted, said crown reinforcement consisting of a stack of a plurality of plies of reinforcements, the latter forming non-zero angles with the circumferential direction, said tire including a tread (10) which is to contact the ground during travel, said tread (10) including a plurality of cuts defining raised elements for forming a tread pattern, and being such that the tread includes a central portion (20), the width of which is between 40 and 50% of the total width of the tread, and edge portions (21) on either side of the central portion, the central portion (20) being provided with a plurality of incisions having a generally transverse orientation (40), which are capable of closing coming into contact with the ground, said tread being characterized in that each edge portion (21) includes a plurality of grooves having a generally transverse orientation (70) and defining a plurality of raised elements (80), the number of raised elements (80) of each edge portion being equal to the number of raised elements (50) of the central portion, said number of elements being equal to at least 44 and at most equal to 49, and the overall amount of recesses of said tread being at most equal to 19 vol %.

    BANDE DE ROULEMENT DE GRANDE ÉPAISSEUR POUR PNEU DE GÉNIE CIVIL
    3.
    发明公开
    BANDE DE ROULEMENT DE GRANDE ÉPAISSEUR POUR PNEU DE GÉNIE CIVIL 有权
    厚胎面轮胎土木工程建筑业

    公开(公告)号：EP2825399A1

    公开(公告)日：2015-01-21

    申请号：EP13710980.7

    申请日：2013-02-22

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

    发明人： CHAUVIN, Dominique

    IPC分类号： B60C11/04 ,  B60C11/13

    CPC分类号： B60C11/0306 ,  B60C11/0309 ,  B60C11/042 ,  B60C2011/0355 ,  B60C2011/133 ,  B60C2200/065

    摘要： A tread (1) for civil engineering tyres, said tread comprising blocks (3) in a central part and edge ribs (2, 4), each block in the central row having a width Ltb measured in a direction parallel to the transversal peaks and a width Lcb measured in the circumferential direction, the tread (1) according to the invention being characterised in that each edge rib (2, 4) comprises a plurality of notches (21, 41), forming recesses, of transversal width Lte and circumferential length Lce, each notch being delimited along its entire height He by transversally oriented walls and one circumferentially oriented wall, each notch (21, 41) being geometrically appropriate to accommodate at least one end part of a block of the central region, leaving a circumferential clearance Ac (measured in the circumferential direction) and a transversal clearance At (measured in the transversal or axial direction), said clearances Ac and At being determined so as to ensure, under the normal driving conditions of the tyre with said tread, at least partial contact by the end part of said block of the central region with at least one of the transversally oriented walls of each notch (21, 41), thereby preventing each of the blocks (3), having its ends fixed in place within said notches, from coming into contact with the neighbouring blocks of the central row.

    BANDE DE ROULEMENT COMPORTANT DES CREUX POUR PNEU D'ENGIN DE GÉNIE CIVIL
    4.
    发明公开
    BANDE DE ROULEMENT COMPORTANT DES CREUX POUR PNEU D'ENGIN DE GÉNIE CIVIL 有权
    PROFIL MITHOHLRÄUMENFÜRREIFEN EINES TIEFBAUFAHRZEUGES

    公开(公告)号：EP3119616A1

    公开(公告)日：2017-01-25

    申请号：EP15710484.5

    申请日：2015-03-16

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

    发明人： NUGIER, Franck ,  CHAUVIN, Dominique ,  LARREGAIN, Arnaud

    IPC分类号： B60C11/11

    CPC分类号： B60C11/24 ,  B60C11/032 ,  B60C11/11 ,  B60C2200/065

    摘要： Tread (1) for civil engineering work vehicle tyre, this tread having a wearable thickness of material EMU, this tread (1) comprising solid parts forming raised elements (2) delimited by grooves (3, 4), each solid part comprising a contact face and opening onto this contact face (20) at least one cavity (5) of maximum depth at least greater than 50% of the wearable thickness EMU, each cavity (5) opening onto the contact face (20) in the as-new state and being delimited by a wall surface and a bottom surface, each wall surface (51) delimiting a cavity (5) intersecting the contact face (20) along an edge contour (53) having a geometry comprising a major axis AA and a minor axis BB, the length of the major axis AA being at least equal to 1.5 times the length of the minor axis BB in the as-new state, this tread being such that for any tread surface down to a predefined level of wear, this level being at most equal to 30% of the wearable thickness of material EMU, the edge contour (53') of each cavity (5) considered on said tread surface is such that the angle that the major axis AA makes with the circumferential direction is at least equal to 0 degrees and at most equal to 40 degrees, and in that beyond a predefined level of wear, the angle that the major axis A'A' makes with the circumferential direction is greater than 40 degrees and greater than the angle that the major axis AA makes with the circumferential direction on the tread surface in the as-new state.

    摘要翻译： 胎面具有材料EMU的可穿戴厚度，并且具有由凹槽界定的凸起元件。 每个实心部分具有接触面和深度大于可穿戴厚度的50％的空腔。 当新的时候，每个空腔都会在接触面上打开，并被壁面和底面界定。 每个壁表面沿着具有几何形状的角部边缘轮廓与接触面相交的空腔界定，当新的时候，其长轴至少为短轴长度的1.5倍。 对于任何下降到预定磨损水平的胎面，水平面至少为材料EMU的可穿戴厚度的30％，长轴与圆周方向之间的夹角在0至40度之间。 磨损水平后，角度大于40度。

    PNEU POUR VÉHICULE DE GÉNIE CIVIL AYANT UNE ENDURANCE AMÉLIORÉE
    7.
    发明公开
    PNEU POUR VÉHICULE DE GÉNIE CIVIL AYANT UNE ENDURANCE AMÉLIORÉE 有权
    TIEFBAUFAHRZEUGREIFEN MIT VERBESSERTERBESTÄNDIGKEIT

    公开(公告)号：EP3119615A1

    公开(公告)日：2017-01-25

    申请号：EP15709965.6

    申请日：2015-03-17

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

    发明人： SPINNLER, Olivier ,  CHAUVIN, Dominique

    IPC分类号： B60C9/28 ,  B60C9/20 ,  B60C11/03

    CPC分类号： B60C9/28 ,  B60C9/0007 ,  B60C9/2006 ,  B60C11/0306 ,  B60C11/04 ,  B60C2009/2016 ,  B60C2009/2019 ,  B60C2009/209 ,  B60C2011/0346 ,  B60C2011/0353 ,  B60C2011/0355 ,  B60C2200/065

    摘要： Tyre (1) for a heavy vehicle of civil engineering type comprising a crown part extended on either side by sidewalls (3), the sidewalls and the beads, this crown part comprising a tread (2) and a crown reinforcement, the latter being situated radially between the tread (2) and a carcass reinforcement (4), the crown reinforcement comprising a protective reinforcement (6), a working reinforcement (5) and an additional reinforcement (7), the protective reinforcement (6) comprising at least one protective layer (61, 62) comprising elastic metallic reinforcers which, with the circumferential direction, form an angle at least equal to 10°, the working reinforcement (5) comprising at least two working layers (51, 52) comprising metal reinforcers which are crossed from one working layer to the next and, with the circumferential direction, form an angle at most equal to 60°, the additional reinforcement (7), centred axially on the equatorial mid plane of the tyre, comprising at least one layer (71, 72) having an axial width at most equal to 0.9 times the shortest of the axial widths of the at least two working layers (51, 52) and comprising metal reinforcers which, with the circumferential direction, form an angle at most equal to 25°, the tread (2) being provided with a tread block pattern that comprises at least two circumferentially oriented grooves (10), this tyre being such that the mean axial distance between the two grooves (10) closest to the equatorial mid plane is greater than the maximum axial width of the additional reinforcement (7) measured between the ends of the layers of this additional reinforcement that are axially furthest from the equatorial mid plane.

    摘要翻译： 轮胎具有冠状部分，其侧壁以珠形结束。 冠部具有胎面和胎冠加强件。 冠部加强件具有保护，加工和附加加固。 保护性加强件具有形成至少等于10°的角度的弹性金属加强件的保护层。 加工加强件具有交叉金属加强件的工作层，并且在圆周方向上形成至多等于60°的角度。 附加加强件具有一层，其轴向宽度最多等于工作层的轴向宽度的最短的0.9倍，并且包括形成最多等于25°的角度的金属加强件。 胎面花纹图案设计具有周向定向的凹槽。 最接近赤道中平面的两个凹槽之间的平均轴向距离大于附加加强件的最大轴向宽度。