Eccentric pivot arm tensioner
    1.
    发明申请

    公开(公告)号:US20060068957A1

    公开(公告)日:2006-03-30

    申请号:US10953910

    申请日:2004-09-29

    IPC分类号: F16H7/12

    摘要: An eccentric pivot arm tensioner capable of automatic belt tensioning and substantially simultaneous operating range indexing during installation. The tensioner comprises a stop plate and cooperating lock plate. The tensioner comprises a pivot arm having a pivot arm member that cooperatively engages a base plate member. In a first, or transit mode, the pivot arm member temporarily engages the base plate member to put a torsion spring and thereby the pivot arm in a preloaded condition. The lock plate is engaged with the stop plate. As a mounting fastener is engaged into a mounting surface the pivot arm member is automatically disengaged from the base plate member by an axial movement of the pivot arm, thereby allowing the pivot arm to rotate and thereby impart a torsion spring force to a belt, i.e., tensioning the belt in an operating position. During the initial movement the lock plate remains engaged with the stop plate thereby causing the lock plate to rotate with the pivot arm, which automatically and properly indexes the pivot arm movement travel stop members with respect to the lock plate, thereby automatically setting a working range. As the fastener is then fully torqued down, the lock plate is fully disengaged from the pivot arm and yet fixed in position to allow full operation of the pivot arm in the operating range.

    Eccentric pivot arm tensioner
    2.
    发明授权
    Eccentric pivot arm tensioner 有权
    偏心枢轴臂张紧器

    公开(公告)号:US07637829B2

    公开(公告)日:2009-12-29

    申请号:US10953910

    申请日:2004-09-29

    IPC分类号: F12H7/10

    摘要: An eccentric pivot arm tensioner capable of automatic belt tensioning and substantially simultaneous operating range indexing during installation. The tensioner comprises a stop plate and cooperating lock plate. The tensioner comprises a pivot arm having a pivot arm member that cooperatively engages a base plate member. In a first, or transit mode, the pivot arm member temporarily engages the base plate member to put a torsion spring and thereby the pivot arm in a preloaded condition. The lock plate is engaged with the stop plate. As a mounting fastener is engaged into a mounting surface the pivot arm member is automatically disengaged from the base plate member by an axial movement of the pivot arm, thereby allowing the pivot arm to rotate and thereby impart a torsion spring force to a belt, i.e., tensioning the belt in an operating position. During the initial movement the lock plate remains engaged with the stop plate thereby causing the lock plate to rotate with the pivot arm, which automatically and properly indexes the pivot arm movement travel stop members with respect to the lock plate, thereby automatically setting a working range. As the fastener is then fully torqued down, the lock plate is fully disengaged from the pivot arm and yet fixed in position to allow full operation of the pivot arm in the operating range.

    摘要翻译: 一种偏心枢轴臂张紧器,能够自动进行皮带张紧,并在安装过程中基本上同时进行操作范围的分度。 张紧器包括止动板和配合的锁定板。 张紧器包括具有与基板构件协作地接合的枢转臂构件的枢转臂。 在第一或过渡模式中,枢转臂构件临时接合基板构件以将扭转弹簧并由此使枢轴臂处于预加载状态。 锁板与止动板接合。 当安装紧固件接合到安装表面时,枢转臂构件通过枢转臂的轴向运动而自动地从基板构件脱离,从而允许枢转臂旋转,从而赋予带扭转弹簧力,即 在操作位置张紧皮带。 在初始运动期间,锁定板保持与挡板接合,从而使锁定板与枢转臂一起旋转,自动适当地将枢轴臂运动行驶止动件相对于锁板进行索引,从而自动设定工作范围 。 当紧固件然后被完全扭转时,锁定板完全脱离枢转臂并且固定在适当位置以允许枢转臂在操作范围内完全操作。