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    TRANSMISSION WITH CONVEX PULLEY SHEAVES AND A DRIVE BELT
    1.
    发明公开
    TRANSMISSION WITH CONVEX PULLEY SHEAVES AND A DRIVE BELT 有权
    凸轮和驱动带传动

    公开(公告)号：EP2274538A2

    公开(公告)日：2011-01-19

    申请号：EP09739021.5

    申请日：2009-04-24

    申请人： Robert Bosch GmbH

    发明人： VAN DER LEEST, Arjan

    IPC分类号： F16H55/56

    CPC分类号： F16H9/125 ,  F16H55/56

    摘要： The invention relates to a continuously variable transmission for motor vehicles provided with a driving pulley (1) and with a driven pulley (2) around which is arranged a drive belt (3) which, at least when the transmission is operating, is clamped between two substantially conical pulley sheaves (4, 5) of the two pulleys (1, 2). The cone surface (10) of the pulley sheaves (4, 5) of the driving pulley (1) in a cross-section including the central pulley axis (9) is provided with a convex curvature having a radius of curvature (R10) that decreases in radially outward direction and the cone surface (10) of the pulley sheaves (4, 5) of the driven pulley (2) in a cross- section including the central pulley axis (9) is provided with a convex curvature having a radius of curvature (R10) that increases in radially outward direction.