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    • 7. 发明公开
    • Free wheel clutch mechanism for bicycle drive train, an exercise bicycle and frame
    • Freilaufkopplungfüreine Trainingsfahrradantriebsvorrichtung
    • EP0852155A2
    • 1998-07-08
    • EP98102693.3
    • 1998-02-17
    • Schwinn Cycling & Fitness Inc.
    • Warner, PatrickHarding, Michael H.Wu, Mu-Chuan
    • A63B22/08
    • A63B22/0605A63B21/157A63B21/225B62M1/10F16D41/24
    • An exercise bicycle including a frame having a seat and handlebars, a high-inertia flywheel having a hub at a center of rotation, the flywheel being rotatably supported on the frame at the hub, and a drive train including a drive sprocket, a crank arm attached to and extending from the drive sprocket, and a pedal attached to the crank arm, the drive train being rotatably supported by the frame. The drive train also includes a slave sprocket fixed to the flywheel at the hub, with the drive and slave sprockets connected in a direct-drive relationship, the drive train driveable in a forward and rearward directions to cause the flywheel to rotate. A clutch mechanism is positioned in engagement with the slave sprocket and the hub to create a frictional engagement between the sprocket and the hub, and to establish a break-free force threshold. When the drive train is actuated in the forward direction, the slave sprocket and the hub move together, and when the drive train is actuated in the rearward direction under the influence of a force greater than the break-free force threshold, the clutch mechanism slips between the slave sprocket and the hub, allowing the slave sprocket and the flywheel to move independently of one another.
    • 一种包括具有座椅和车把的框架的运动自行车,具有在旋转中心的轮毂的高惯性飞轮,所述飞轮可旋转地支撑在轮毂上的框架上,以及传动系,其包括驱动链轮,曲柄臂 附接到驱动链轮并且从驱动链轮延伸,以及附接到曲柄臂的踏板,传动系由框架可旋转地支撑。 传动系统还包括固定在轮毂上的飞轮的从动链轮,其中驱动链轮和从动链轮以直接驱动关系连接,传动系可以向前和向后方向驱动以使飞轮旋转。 离合器机构定位成与从动链轮和轮毂接合以在链轮和轮毂之间形成摩擦接合,并且建立无破坏力的阈值。 当传动系向前方驱动时,从动链轮和轮毂一起移动,当传动系在大于无断裂力阈值的力的影响下沿向后方向致动时,离合器机构滑动 在从动链轮和轮毂之间,允许从动链轮和飞轮彼此独立地移动。
    • 8. 发明公开
    • EXERCISE DEVICE HAVING ANTI-DRAFT ENERGY ABSORBING FANWHEEL.
    • ÜBUNGSVORRICHTUNGMIT EINEM ENERGIE ABSORBIERENDENLÜFTERRAD。
    • EP0604611A4
    • 1994-10-19
    • EP93914166
    • 1993-05-26
    • SCHWINN CYCLING & FITNESS INC
    • FRIESL ROBERT C
    • A63B21/008A63B23/04A63B22/06A63B69/16
    • A63B22/001A63B21/00065A63B21/0088A63B21/4047A63B21/4049A63B22/0605
    • Exercising machine having a vaned fanwheel (5) rotatably mounted on a frame and arranged to absorb energy by rotating the vane blades (28) against ambient air. The fanwheel comprises a hub (33) with a plurality of air vanes (28) which are movable in an orbit around the hub axis. Each vane comprises a blade having leading and trailing surfaces. Each blade is a semi-cylindrical plate mounted with the hollow, concave side comprising the leading surface, and the streamlined, convex side comprising the trailing surface. The vanes are circumferentially spaced apart to substantially eliminate drafting and stagnant wake regions between blades. The coefficient of drag for the concavo/convex vane blades of this invention are substantially twice that obtained by flat vane blades conventionally used. Alternative forms of the invention are illustrated with semi-spherical concavo/convex and semi-cylindrical plano/convex blades. All have in common trailing streamlined convex surfaces.
    • 锻炼机具有可旋转地安装在框架上的带叶片的扇形轮(5),并布置成通过使叶轮叶片(28)相对于环境空气旋转来吸收能量。 风扇轮包括具有多个空气叶片(28)的轮毂(33),所述空气叶片可围绕轮毂轴线在轨道中运动。 每个叶片包括具有前表面和后表面的叶片。 每个叶片是安装有中空凹面的半圆柱形板,其包括前表面,流线型凸面包括后表面。 叶片周向间隔开以基本消除叶片之间的牵伸和停滞尾流区域。 本发明的凹凸叶片的阻力系数基本上是通过常规使用的平叶片获得的阻力系数的两倍。 本发明的替代形式用半球形凹凸/半凸面和半圆柱形平凸面刀片进行说明。 所有的都有共同的尾部流线型凸面。