公开(公告)号：US20180079467A1

公开(公告)日：2018-03-22

申请号：US15270656

申请日：2016-09-20

Applicant: Shimano Inc.

Inventor： Yuki HIROSE ,  Atsuhiro EMURA ,  Tetsu NONOSHITA

IPC: B62M9/10 ,  F16H55/30

CPC classification number: B62M9/105 ,  B62M1/36 ,  B62M9/12 ,  B62M2009/007 ,  F16H55/30

Abstract: A bicycle front sprocket assembly is basically provided with a first sprocket, a second sprocket, a sprocket carrier and a chain guiding portion. The first sprocket includes a first sprocket body and a plurality of first sprocket teeth disposed on a first outer periphery of the first sprocket body, The second sprocket includes a second sprocket body and a plurality of second sprocket teeth. The second sprocket teeth are disposed on a second outer periphery of the second sprocket body. The sprocket carrier includes a torque transmitting profile and a sprocket mounting portion. The chain guiding portion is positioned between the first and second sprockets in an axial direction parallel to a rotational center axis of the bicycle front sprocket assembly. At least one of the first and second sprockets is mounted to the sprocket mounting portion of the sprocket carrier by a non-threaded fastener.

公开(公告)号：US20170066500A1

公开(公告)日：2017-03-09

申请号：US15357369

申请日：2016-11-21

Applicant: Shimano Inc.

Inventor： Akinobu SUGIMOTO ,  Yuki HIROSE

IPC: B62M9/10 ,  F16H55/30

CPC classification number: B62M9/10 ,  B62M1/36 ,  B62M9/105 ,  F16H55/30 ,  Y10T74/2165

Abstract: A bicycle sprocket has a sprocket main body, a plurality of teeth disposed on the sprocket main body, and at least one shifting area. The teeth include at least one first tooth having a first maximum axial width and at least one second tooth having a second maximum axial width. The first maximum axial width is larger than the second maximum axial width. The first tooth is configured to engage with an outer link plate of a chain. The second tooth is configured to engage with an inner link plate of the chain. The at least one shifting area includes an area where a chain engages with one of the teeth during shifting from a small sprocket to the bicycle sprocket and an area where the chain separates from one of the teeth during a shifting action from the bicycle sprocket to the small sprocket.

Abstract translation: 自行车链轮具有链轮主体，设置在链轮主体上的多个齿和至少一个换档区域。 齿包括具有第一最大轴向宽度的至少一个第一齿和具有第二最大轴向宽度的至少一个第二齿。 第一最大轴向宽度大于第二最大轴向宽度。 第一齿构造成与链的外链板接合。 第二齿构造成与链的内链板接合。 所述至少一个换档区域包括在从小链轮到自行车链轮的变速期间链与齿中的一个啮合的区域，以及在从自行车链轮到自行车链轮的换档动作期间链与其中一个齿分离的区域 小链轮

公开(公告)号：US20140338494A1

公开(公告)日：2014-11-20

申请号：US14053630

申请日：2013-10-15

Applicant: Shimano Inc.

Inventor： Akinobu SUGIMOTO ,  Yuki HIROSE

IPC: F16H55/30 ,  B62M1/36

CPC classification number: B62M9/10 ,  B62M1/36 ,  B62M9/105 ,  F16H55/30 ,  Y10T74/2165

Abstract: A first sprocket is capable of engaging with a chain. The first sprocket has a first sprocket main body, a plurality of teeth disposed along a circumferential direction on the radially outer side of the first sprocket main body, and at least one shifting area. The teeth include at least one first tooth having a first maximum axial width and at least one second tooth having a second maximum axial width. The first maximum axial width is greater than the second maximum axial width. The first tooth is formed to be capable of engaging with an outer link plate of the chain. The second tooth is formed to be capable of engaging with an inner link plate of the chain.

Abstract translation: 第一链轮能够与链条啮合。 第一链轮具有第一链轮主体，沿着圆周方向在第一链轮主体的径向外侧设置的多个齿，以及至少一个移动区域。 齿包括具有第一最大轴向宽度的至少一个第一齿和具有第二最大轴向宽度的至少一个第二齿。 第一最大轴向宽度大于第二最大轴向宽度。 第一齿形成为能够与链条的外链板接合。 第二齿形成为能够与链的内链板接合。