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21 条记录 (耗时 0.026 秒)

    Continuously variable transmission
    1.
    发明授权
    Continuously variable transmission 有权
    连续可变传动

    公开(公告)号：US08888643B2

    公开(公告)日：2014-11-18

    申请号：US13288711

    申请日：2011-11-03

    申请人： Charles B Lohr ,  Brad Pohl

    发明人： Charles B Lohr ,  Brad Pohl

    IPC分类号： F16H15/48 ,  F16H13/08 ,  F16H13/04 ,  F16H15/50

    CPC分类号： F16H55/32 ,  B62M11/16 ,  F16C19/545 ,  F16H15/50 ,  F16H15/503 ,  F16H15/52 ,  F16H57/0484 ,  F16H57/0487 ,  F16H2057/085

    摘要： Disclosed embodiments are directed to components, subassemblies, systems, and/or methods for continuously variable transmissions (CVT). In one embodiment, a CVT has a number of spherical planets in contact with an idler. Various idler assemblies can be used to facilitate to improve durability, fatigue life, and efficiency of a CVT. In one embodiment, the idler assembly has two rolling elements having contact surfaces that are angled with respect to a longitudinal axis of the CVT. In some embodiments, a bearing is operably coupled between the first and second rolling elements. The bearing is configured to balance axial force between the first and second rolling elements. In one embodiment, the bearing is a ball bearing. In another embodiment, the bearing is an angular contact bearing. In yet other embodiments, needle roller bearings are employed.

    摘要翻译： 公开的实施例涉及用于无级变速器（CVT）的部件，子组件，系统和/或方法。 在一个实施例中，CVT具有与惰轮接触的多个球形行星。 可以使用各种惰轮组件来促进CVT的耐用性，疲劳寿命和效率。 在一个实施例中，惰轮组件具有两个滚动元件，其具有相对于CVT的纵向轴线成角度的接触表面。 在一些实施例中，轴承可操作地联接在第一和第二滚动元件之间。 轴承构造成平衡第一和第二滚动元件之间的轴向力。 在一个实施例中，轴承是球轴承。 在另一个实施例中，轴承是角接触轴承。 在其它实施例中，采用滚针轴承。

    Clamping force generator
    2.
    发明授权
    Clamping force generator 有权

    公开(公告)号：US08376903B2

    公开(公告)日：2013-02-19

    申请号：US12514062

    申请日：2007-11-06

    申请人： Brad P Pohl ,  Daniel J Dawe ,  Charles B Lohr ,  Jon M Nichols

    发明人： Brad P Pohl ,  Daniel J Dawe ,  Charles B Lohr ,  Jon M Nichols

    IPC分类号： F16H13/14 ,  F16H15/52

    CPC分类号： F16H61/664 ,  F16H15/28 ,  F16H15/52 ,  F16H25/186 ,  Y10T74/18304 ,  Y10T74/18312

    摘要： Mechanisms and methods for clamping force generation are disclosed. In one embodiment, a clamping force generator includes a spring coupled to a traction ring and to a load cam roller cage. The traction ring can be provided with a recess to receive the spring. In some embodiments, a relatively short spring is provided. In other embodiments, a spring couples to a wire and the spring-wire combination couples to the traction ring and the load cam roller cage. In some embodiments, the load cam roller cage is provided with tabs adapted to engage the wire and/or the spring. In yet other embodiments, the traction ring is configured to receive a dowel pin for coupling to the spring. One or more of the tabs can include a tab notch that cooperates with a stop pin coupled to the traction ring to provide adjustment of the travel of the load cam roller cage.

    Continuously variable transmission
    5.
    发明授权
    Continuously variable transmission 有权
    连续可变传动

    公开(公告)号：US07976426B2

    公开(公告)日：2011-07-12

    申请号：US11842050

    申请日：2007-08-20

    申请人： Robert A Smithson ,  Brad P Pohl ,  Oronde J Armstrong ,  Donald C Miller ,  Daniel J Dawe ,  Fernand A Thomassy ,  Matthew P Simister ,  Wesley R Poth ,  Jon M Nichols ,  Charles B Lohr

    发明人： Robert A Smithson ,  Brad P Pohl ,  Oronde J Armstrong ,  Donald C Miller ,  Daniel J Dawe ,  Fernand A Thomassy ,  Matthew P Simister ,  Wesley R Poth ,  Jon M Nichols ,  Charles B Lohr

    IPC分类号： F16H15/26

    CPC分类号： F16H15/503 ,  B62M9/00 ,  B62M23/00 ,  F16H15/28 ,  F16H15/50 ,  Y10T29/49462 ,  Y10T29/49464 ,  Y10T29/49467 ,  Y10T29/4984

    摘要： A continuously variable transmission (CVT) having a number of tiltable ball-leg assemblies configured angularly about a longitudinal axis. Each ball-leg assembly is in contact with, and guided through a tilting motion by an axially translating shift cam having a convex shape. The convex shape of the shift cam can have a profile defined by a set of parametric equations. In one embodiment, the profile of the shift cam vary according to the location of the contact point between an idler and the ball-leg assembly as well as the amount of relative axial motion between the ball-leg assembly and the idler. In some embodiments, the profile of the shift cam can be configured to control the axial translation of the idler relative to the change in tilt angle of the ball-leg assembly. In other embodiments, a roll-slide factor can be used to characterize the axial translation of the idler relative to the tilt angle of the ball-leg assembly.

    摘要翻译： 具有多个可倾斜的球腿组件的无级变速器（CVT），所述可转动的球腿组件围绕纵向轴线成角度地配置。 每个球腿组件通过具有凸形形状的轴向平移换档凸轮接触并通过倾斜运动引导。 换档凸轮的凸形可以具有由一组参数方程定义的轮廓。 在一个实施例中，换档凸轮的轮廓根据惰轮和球腿组件之间的接触点的位置以及球腿组件和惰轮之间的相对轴向运动的量而变化。 在一些实施例中，换档凸轮的轮廓可以被配置为控制惰轮相对于球腿组件的倾斜角度的变化的轴向平移。 在其他实施例中，滑动因子可用于表征惰轮相对于球腿组件的倾斜角度的轴向平移。

    Continuously variable transmission
    6.
    发明授权
    Continuously variable transmission 有权
    连续可变传动

    公开(公告)号：US07914029B2

    公开(公告)日：2011-03-29

    申请号：US12039591

    申请日：2008-02-28

    申请人： Donald C Miller ,  Robert A Smithson ,  Brad P Pohl ,  Charles B Lohr ,  Jon M Nichols

    发明人： Donald C Miller ,  Robert A Smithson ,  Brad P Pohl ,  Charles B Lohr ,  Jon M Nichols

    IPC分类号： B62M1/02

    CPC分类号： F16H15/52 ,  B62M1/36 ,  B62M9/08 ,  B62M11/145 ,  F16H15/28 ,  F16H15/503 ,  Y10T74/19851 ,  Y10T74/20177

    摘要： Traction planets and traction rings can be operationally coupled to a planetary gearset to provide a continuously variable transmission (CVT). The CVT can be used in a bicycle. In one embodiment, the CVT is mounted on the frame of the bicycle at a location forward of the rear wheel hub of the bicycle. In one embodiment, the CVT is mounted on and supported by members of the bicycle frame such that the CVT is coaxial with the crankshaft of the bicycle. The crankshaft is configured to drive elements of the planetary gearset, which are configured to operationally drive the traction rings and the traction planets. Inventive component and subassemblies for such a CVT are disclosed. A shifting mechanism includes a plurality of pivot arms arranged to pivot about the centers of the traction planets as a shift pin hub moves axially.

    摘要翻译： 牵引行星和牵引环可以可操作地耦合到行星齿轮组，以提供无级变速器（CVT）。 CVT可用于自行车。 在一个实施例中，CVT在自行车的后轮毂的前方的位置安装在自行车的框架上。 在一个实施例中，CVT安装在自行车车架的构件上并由其支撑，使得CVT与自行车的曲轴同轴。 曲轴被构造成驱动行星齿轮组的元件，其构造成可操作地驱动牵引环和牵引行星。 公开了用于这种CVT的本发明组件和子组件。 换档机构包括多个枢转臂，当枢轴毂轴向移动时，所述枢转臂布置成围绕牵引行星的中心枢转。

    Continuously variable transmission
    8.
    发明授权
    Continuously variable transmission 有权
    连续可变传动

    公开(公告)号：US08708360B2

    公开(公告)日：2014-04-29

    申请号：US12039590

    申请日：2008-02-28

    申请人： Donald C Miller ,  Robert A Smithson ,  Brad P Pohl ,  Charles B Lohr ,  Jon M Nichols

    发明人： Donald C Miller ,  Robert A Smithson ,  Brad P Pohl ,  Charles B Lohr ,  Jon M Nichols

    IPC分类号： B62M1/02 ,  B62M1/36

    CPC分类号： F16H15/52 ,  B62M1/36 ,  B62M9/08 ,  B62M11/145 ,  F16H15/28 ,  F16H15/503 ,  Y10T74/19851 ,  Y10T74/20177

    摘要： Traction planets and traction rings can be operationally coupled to a planetary gearset to provide a continuously variable transmission (CVT). The CVT can be used in a bicycle. In one embodiment, the CVT is mounted on the frame of the bicycle at a location forward of the rear wheel hub of the bicycle. In one embodiment, the CVT is mounted on and supported by members of the bicycle frame such that the CVT is coaxial with the crankshaft of the bicycle. The crankshaft is configured to drive elements of the planetary gearset, which are configured to operationally drive the traction rings and the traction planets. Inventive component and subassemblies for such a CVT are disclosed. A shifting mechanism includes a plurality of pivot arms arranged to pivot about the centers of the traction planets as a shift pin hub moves axially.

    摘要翻译： 牵引行星和牵引环可以可操作地耦合到行星齿轮组，以提供无级变速器（CVT）。 CVT可用于自行车。 在一个实施例中，CVT在自行车的后轮毂的前方的位置安装在自行车的框架上。 在一个实施例中，CVT安装在自行车车架的构件上并由其支撑，使得CVT与自行车的曲轴同轴。 曲轴构造成驱动行星齿轮组的元件，其构造成可操作地驱动牵引环和牵引行星。 公开了用于这种CVT的本发明组件和子组件。 换档机构包括多个枢转臂，当枢轴毂轴向移动时，所述枢转臂布置成围绕牵引行星的中心枢转。