Electric Actuator for S-Cam Brake
    44.
    发明申请

    公开(公告)号:US20170343070A1

    公开(公告)日:2017-11-30

    申请号:US15164983

    申请日:2016-05-26

    Abstract: A drum brake assembly includes a brake spider having a central aperture configured to receive an axle extending therethrough and first and second brake shoes. Each of the first and second brakes shoes has a first end pivotally coupled to the brake spider. First and second cam followers are disposed at corresponding second ends of the first and second brake shoes. A camshaft has a shaft extending through a camshaft aperture in the brake spider and disposed along a rotational axis and a cam disposed at a first end of the shaft and in engagement with the first and second cam followers. An electric motor has an output shaft coupled to the camshaft. A controller is configured to drive the electric motor to cause rotation of the camshaft and move the first and second brake shoes between positions of engagement and disengagement with an associated braking surface.

    Bicycle rim brake
    46.
    发明授权
    Bicycle rim brake 有权
    自行车轮辋刹车

    公开(公告)号:US09586646B2

    公开(公告)日:2017-03-07

    申请号:US14663469

    申请日:2015-03-20

    Applicant: SHIMANO INC.

    Abstract: A bicycle rim brake comprises a first brake arm, a second brake arm, and a pivotal cam member. The first brake arm is configured to pivot about a first pivot axis. The first brake arm includes a first mounting portion and a first follower. The second brake arm is configured to pivot about a second pivot axis which is different from the first pivot axis. The second brake arm includes a second mounting portion and a second follower. The pivotal cam member is configured to pivot about a third pivot axis which is different from the first pivot axis and the second pivot axis to guide the first follower and the second follower so that the first brake arm pivots about the first pivot axis and the second brake arm pivots about the second pivot axis.

    Abstract translation: 自行车轮辋制动器包括第一制动臂,第二制动臂和枢转凸轮构件。 第一制动臂构造成围绕第一枢转轴线枢转。 第一制动臂包括第一安装部分和第一从动件。 第二制动臂构造成围绕不同于第一枢转轴线的第二枢转轴线枢转。 第二制动臂包括第二安装部分和第二从动件。 所述枢转凸轮构件被构造成围绕不同于所述第一枢转轴线和所述第二枢转轴线的第三枢转轴线枢转,以引导所述第一从动件和所述第二从动件,使得所述第一制动臂围绕所述第一枢转轴线枢转, 制动臂围绕第二枢转轴线枢转。

    Drum brake S-cam having offset cam followers
    47.
    发明授权
    Drum brake S-cam having offset cam followers 有权
    具有偏置凸轮从动件的鼓式制动器S凸轮

    公开(公告)号:US09428157B2

    公开(公告)日:2016-08-30

    申请号:US14530712

    申请日:2014-11-01

    CPC classification number: B60T1/067 F16D51/22 F16D65/08 F16D65/22 F16D2125/30

    Abstract: A drum brake is provided that improves the direction of the actuating forces to reduce stress, improve efficiency and permit thicker brake linings. First and second brake shoes each have a first end pivotally coupled to a brake spider. First and second cam followers are disposed at corresponding second ends of the brake shoes. A cam engages the cam followers with movement of the cam causing the brake shoes to move between positions of engagement and disengagement with a braking surface. The cam followers are offset such that a center of the first cam follower is disposed at a first distance from a center axis of the brake and a center of the second cam follower is disposed at a second distance from the center axis with the first distance different from the second distance so as to improve the direction of the cam force vector.

    Abstract translation: 提供鼓式制动器,其改善致动力的方向以减少应力,提高效率并允许较厚的制动衬片。 第一和第二制动蹄每个都具有枢转地联接到制动器星形轮的第一端。 第一和第二凸轮从动件设置在制动蹄的对应的第二端。 凸轮通过凸轮的运动与凸轮从动件接合,致使制动蹄在与制动表面接合和脱离的位置之间移动。 凸轮从动件被偏移,使得第一凸轮从动件的中心设置在距制动器的中心轴线的第一距离处,并且第二凸轮从动件的中心设置在离中心轴线的第二距离处,第一距离不同 从第二距离改善凸轮力矢量的方向。

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