公开(公告)号：US10562589B2

公开(公告)日：2020-02-18

申请号：US16026660

申请日：2018-07-03

申请人： Shimano Inc.

发明人： Akinobu Sugimoto ,  Yuki Hirose

IPC分类号： B62M9/10 ,  F16H55/30 ,  B62M1/36

摘要： A multiple bicycle rear sprocket assembly includes first and second sprockets. The first sprocket includes a plurality of first sprocket teeth. The first sprocket teeth include at least one first tooth having a first maximum axial width for engaging with an outer link plate of the chain, and at least one second tooth having a second maximum axial width for engaging with an inner link plate of the chain. The first maximum axial width is larger than the second maximum axial width. The second sprocket includes a plurality of second sprocket teeth. The second sprocket is smaller than the first sprocket. The second sprocket teeth have additional second teeth only. The additional second teeth are configured for engaging with the inner link plate of the chain. The first maximum axial width is larger than a maximum axial width of each of the additional second teeth.

公开(公告)号：US20190277386A1

公开(公告)日：2019-09-12

申请号：US15916080

申请日：2018-03-08

申请人： Shimano, Inc.

发明人： Yuki Hirose ,  Atsuhiro Emura ,  Shingo Shiraishi ,  Kenichi Akanishi

IPC分类号： F16H55/30 ,  F16H55/06

摘要： A bicycle sprocket includes a sprocket body, a tooth ring, and at least one non-threaded fastener. The sprocket body is made of a first material and has a rotational center axis. A central portion of the sprocket body has a central opening through which the rotational center axis passes. The sprocket body further includes a plurality of arm portions that extend radially outward from the central portion with respect to the rotational center axis. Each arm portion includes a sprocket body attachment portion. The tooth ring is made of a second material different from the first material and includes an annular portion. The annular portion includes a plurality of tooth ring attachment portions and a plurality of chain-driving teeth extending radially outward from the annular portion. The non-threaded fastener fixedly connects a sprocket body attachment portion and to a corresponding tooth ring attachment portion.

公开(公告)号：US20180312220A1

公开(公告)日：2018-11-01

申请号：US16026660

申请日：2018-07-03

申请人： Shimano Inc.

发明人： Akinobu Sugimoto ,  Yuki Hirose

IPC分类号： B62M9/10 ,  F16H55/30 ,  B62M1/36

摘要： A multiple bicycle rear sprocket assembly includes first and second sprockets. The first sprocket includes a plurality of first sprocket teeth. The first sprocket teeth include at least one first tooth having a first maximum axial width for engaging with an outer link plate of the chain, and at least one second tooth having a second maximum axial width for engaging with an inner link plate of the chain. The first maximum axial width is larger than the second maximum axial width. The second sprocket includes a plurality of second sprocket teeth. The second sprocket is smaller than the first sprocket. The second sprocket teeth have additional second teeth only. The additional second teeth are configured for engaging with the inner link plate of the chain. The first maximum axial width is larger than a maximum axial width of each of the additional second teeth.

公开(公告)号：US09701364B2

公开(公告)日：2017-07-11

申请号：US14053630

申请日：2013-10-15

申请人： Shimano Inc.

发明人： Akinobu Sugimoto ,  Yuki Hirose

IPC分类号： F16H55/30 ,  B62M1/36 ,  B62M9/10

CPC分类号： B62M9/10 ,  B62M1/36 ,  B62M9/105 ,  F16H55/30 ,  Y10T74/2165

摘要： 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.

公开(公告)号：US10377445B2

公开(公告)日：2019-08-13

申请号：US15270656

申请日：2016-09-20

申请人： Shimano Inc.

发明人： Yuki Hirose ,  Atsuhiro Emura ,  Tetsu Nonoshita

IPC分类号： B62M9/10 ,  F16H55/30 ,  B62M9/12 ,  B62M1/36 ,  B62M9/00

摘要： 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：US10830329B2

公开(公告)日：2020-11-10

申请号：US15916080

申请日：2018-03-08

申请人： Shimano, Inc.

发明人： Yuki Hirose ,  Atsuhiro Emura ,  Shingo Shiraishi ,  Kenichi Akanishi

IPC分类号： F16H55/30 ,  F16H55/06 ,  B62M9/12 ,  B62M1/36

摘要： A bicycle sprocket includes a sprocket body, a tooth ring, and at least one non-threaded fastener. The sprocket body is made of a first material and has a rotational center axis. A central portion of the sprocket body has a central opening through which the rotational center axis passes. The sprocket body further includes a plurality of arm portions that extend radially outward from the central portion with respect to the rotational center axis. Each arm portion includes a sprocket body attachment portion. The tooth ring is made of a second material different from the first material and includes an annular portion. The annular portion includes a plurality of tooth ring attachment portions and a plurality of chain-driving teeth extending radially outward from the annular portion. The non-threaded fastener fixedly connects a sprocket body attachment portion and to a corresponding tooth ring attachment portion.

公开(公告)号：US10040510B2

公开(公告)日：2018-08-07

申请号：US15357369

申请日：2016-11-21

申请人： Shimano Inc.

发明人： Akinobu Sugimoto ,  Yuki Hirose

IPC分类号： F16H55/30 ,  B62M1/36 ,  B62M9/10

摘要： 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.