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公开(公告)号：US20190048974A1
公开(公告)日：2019-02-14
申请号：US15672229
申请日：2017-08-08
Applicant: SHIMANO INC.
Inventor： Tsuyoshi FUKUMORI , Atsuhiro EMURA
Abstract: A bicycle chain comprises a first inner link plate and a second inner link plate. The first inner link plate comprises a first inner-link end portion, a second inner-link end portion, and a first inner-link intermediate portion. The second inner link plate comprises a third inner-link end portion, a fourth inner-link end portion, and a second inner-link intermediate portion. A first inner-link end edge has a first chamfer extending about the first inner-link center axis such that a part of the first chamfer is disposed in a first circumferential area defined from a first inner-link longitudinal centerline to a first reference line when viewed in an axial direction of the first inner-link center axis. The first circumferential area is smaller than 14 degrees.
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公开(公告)号：US20180297664A1
公开(公告)日：2018-10-18
申请号：US15485970
申请日：2017-04-12
Applicant: Shimano Inc.
Inventor： Tsuyoshi FUKUMORI , Hiroshi FUJITA
Abstract: A bicycle sprocket assembly is basically provided that includes a sprocket support member, a first sprocket, a second sprocket that is a separate member from the first sprocket, and a third sprocket that is a separate member from the first and second sprockets. The sprocket support member is configured to support at least one of the first, second and third sprockets. The sprocket support member includes a plurality of sprocket support portions extending radially outwardly from a central cylindrical portion. A first reinforcement member is attached to at least one of the first and second sprockets, and extends between the first and second sprockets. A second reinforcement member is attached to at least one of the second and third sprockets, and extends between the second and third sprockets. Each of the first and second reinforcement members is disposed between an adjacent pair of the plurality of sprocket support portions.
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公开(公告)号：US20180187749A1
公开(公告)日：2018-07-05
申请号：US15906682
申请日：2018-02-27
Applicant: Shimano Inc.
Inventor： Tsuyoshi FUKUMORI
IPC: F16G13/06
CPC classification number: F16G13/06
Abstract: An outer link plate for a bicycle chain includes a first outer-link end portion, a second outer-link end portion and an outer-link intermediate portion interconnecting the first outer-link end portion and the second outer-link end portion. The first outer-link end portion includes a first outer-link opening having a first outer-link center axis. The second outer-link end portion includes a second outer-link opening having a second outer-link center axis parallel to the first outer-link center axis. The outer link plate has an outer-link longitudinal centerline. The outer-link intermediate portion has an outer-link outer surface and an outer-link inner surface that is opposite to the outer-link outer surface in an axial direction parallel to the first outer-link center axis. The outer-link intermediate portion includes an axial protrusion protruding from the outer-link inner surface in the axial direction. The axial protrusion is offset from the outer-link longitudinal centerline.
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公开(公告)号：US20170067535A1
公开(公告)日：2017-03-09
申请号：US15140432
申请日：2016-04-27
Applicant: SHIMANO INC.
Inventor： Tsuyoshi FUKUMORI , Toru KUBOTA
IPC: F16G13/06
CPC classification number: F16G13/06
Abstract: A bicycle chain comprises a first outer link plate, a second outer link plate, and an axial protuberance protruding. The first outer link plate comprises a first end portion, a second end portion, and a first intermediate portion. The second outer link plate comprises a third end portion, a fourth end portion, and a second intermediate portion. The axial protuberance protrudes from a first inner surface of the first intermediate portion in an axial direction. The second intermediate portion of the second outer link plate is free from an axial protuberance protruding from a second inner surface of the second intermediate portion in an axial direction.
Abstract translation: 自行车链条包括第一外链板，第二外链板和突出的轴向突起。 第一外链板包括第一端部，第二端部和第一中间部。 第二外链板包括第三端部，第四端部和第二中间部。 轴向隆起部沿轴向从第一中间部分的第一内表面突出。 第二外链板的第二中间部分没有轴向隆起，该轴向突起从第二中间部分的第二内表面沿轴向突出。
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5.发明申请BICYCLE SPROCKET, BICYCLE REAR SPROCKET, AND BICYCLE MULTIPLE SPROCKET ASSEMBLY 有权BICYCLE SPROCKET，BICYCLE REAR SPROCKET和BICYCLE MULTIPLE SPROCKET ASSEMBLY公开(公告)号：US20170029066A1
公开(公告)日：2017-02-02
申请号：US14811781
申请日：2015-07-28
Applicant: SHIMANO INC.
Inventor： Yasufumi FUKUNAGA , Tsuyoshi FUKUMORI , Koji TOKUYAMA , Sota YAMAGUCHI , Toshinari OISHI
CPC classification number: B62M9/10 , F16H55/303
Abstract: A bicycle sprocket comprises a sprocket body, a plurality of sprocket teeth, and at least one chain-curvature limiting protuberance. The sprocket body is configured to be rotatable about a rotational center axis. The plurality of sprocket teeth extend radially outward from an outer periphery of the sprocket body. The at least one chain-curvature limiting protuberance is configured to limit axial curvature of a bicycle chain engaging with an independent neighboring bicycle sprocket which is adjacent to the bicycle sprocket without another sprocket between the bicycle sprocket and the independent neighboring bicycle sprocket. The axial curvature is curvature of the bicycle chain relative to the bicycle sprocket when viewed from a radial direction perpendicular to the rotational center axis. The at least one chain-curvature limiting protuberance is disposed on at least one of an outward facing side and an inward facing side.
Abstract translation: 自行车链轮包括链轮主体，多个链轮齿和至少一个链曲率限制突起。 链轮主体被构造成围绕旋转中心轴线旋转。 多个链轮齿从链轮主体的外周径向向外延伸。 所述至少一个链曲率限制突起构造成限制与独立的相邻自行车链轮接合的自行车链的轴向曲率，所述独立相邻的自行车链轮与自行车链轮相邻，而在自行车链轮和独立相邻的自行车链轮之间没有另一个链轮。 当从垂直于旋转中心轴的径向方向观察时，轴向曲率是相对于自行车链轮的自行车链条的曲率。 至少一个链曲率限制突起设置在向外侧和向内侧的至少一个上。
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Patent Agency Ranking
公开(公告)号：US20150094180A1
公开(公告)日：2015-04-02
申请号：US14038758
申请日：2013-09-27
Applicant: SHIMANO INC.
Inventor： Tsuyoshi FUKUMORI , Takashi ADACHI
CPC classification number: F16G13/06 , B62M9/00 , B62M2009/005
Abstract: A bicycle chain comprises a first outer link plate, a first inner link plate, and a first link pin. The first outer link plate comprises a first end portion, a second end portion, and a first intermediate portion. The first end portion includes a first opening having a first center axis. A first outer-link distance is defined from the first center axis to a first end edge. The first inner link plate comprises a third end portion, a forth end portion, and a second intermediate portion. The third end portion includes a third opening having a third center axis. A first inner-link distance is defined from the third center axis to a third end edge. A second inner-link distance is defined from the third center axis to a third end edge. The first inner-link distance is larger than the second inner-link distance and the first outer-link distance.
Abstract translation: 自行车链条包括第一外连杆板，第一内连杆板和第一连杆销。 第一外链板包括第一端部，第二端部和第一中间部。 第一端部包括具有第一中心轴线的第一开口。 从第一中心轴线到第一端边缘限定第一外链接距离。 第一内链板包括第三端部，第四端部和第二中间部。 第三端部包括具有第三中心轴线的第三开口。 从第三中心轴到第三端边缘限定第一内链接距离。 从第三中心轴线到第三端边缘限定第二内链接距离。 第一内链路距离大于第二内链路距离和第一外链路距离。
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公开(公告)号：US20210324941A1
公开(公告)日：2021-10-21
申请号：US17359640
申请日：2021-06-28
Applicant: SHIMANO INC.
Inventor： Tsuyoshi FUKUMORI , Atsuhiro EMURA
Abstract: A bicycle chain comprises a first inner link plate and a second inner link plate. The first inner link plate comprises a first inner-link end portion, a second inner-link end portion, and a first inner-link intermediate portion. The first inner-link end portion overlaps with a tooth of a sprocket when viewed in the axial direction to provide an overlapping area in a state where the bicycle chain is engaged with the sprocket. The overlapping area has a maximum circumferential length equal to or larger than 0.45 mm.
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公开(公告)号：US20190359285A1
公开(公告)日：2019-11-28
申请号：US15989162
申请日：2018-05-24
Applicant: SHIMANO INC.
Inventor： Atsuhiro EMURA , Yasufumi FUKUNAGA , Tsuyoshi FUKUMORI
Abstract: A bicycle sprocket comprises a sprocket body, a plurality of sprocket teeth, and at least one upshifting facilitation area. The plurality of sprocket teeth extends radially outwardly from the sprocket body with respect to the rotational center axis. The plurality of sprocket teeth includes at least one axially recessed upshifting initiation tooth. The at least one axially recessed upshifting initiation tooth includes a driving surface, a non-driving surface and a tooth tip portion. The non-driving surface includes a non-driving surface protrusion disposed radially inwardly from a non-driving surface side tooth tip end with respect to a rotational center axis. The non-driving surface protrusion has a protrusion tip disposed closer to the second axially-facing surface than the non-driving-surface-side tooth tip end in the axial direction so that a guiding slope extends from the protrusion tip toward the first axially-facing surface.
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公开(公告)号：US20190100278A1
公开(公告)日：2019-04-04
申请号：US15719576
申请日：2017-09-29
Applicant: SHIMANO INC.
Inventor： Tsuyoshi FUKUMORI , Atsuhiro EMURA
Abstract: A bicycle chain comprises a first outer link plate and a second outer link plate. A first outer-link longitudinal axis extends through a first outer-link center axis and a second outer-link center axis to divide a first outer surface into a first side and a second side when viewed in an axial direction. A second outer-link longitudinal axis extends through a third outer-link center axis and a fourth outer-link center axis to divide a second outer surface into a third side and a fourth side when viewed in the axial direction. The fourth side includes a first circumferential area and a first chamfer free area. The first circumferential area has a first angle equal to or larger than 20 degrees. The first chamfer free area is adjacent to the first circumferential area. At least one second chamfer is provided outside the first chamfer free area.
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公开(公告)号：US20190061873A1
公开(公告)日：2019-02-28
申请号：US15686113
申请日：2017-08-24
Applicant: SHIMANO INC.
Inventor： Hiroshi FUJITA , Atsuhiro EMURA , Yasufumi FUKUNAGA , Tsuyoshi FUKUMORI
Abstract: A bicycle rear sprocket assembly comprises a sprocket support and a first sprocket. The sprocket support includes a hub engagement part configured to engage with a bicycle hub assembly. The sprocket support includes a plurality of sprocket attachment members extending radially outwardly from the hub engagement part with respect to a rotational center axis of the bicycle rear sprocket assembly. The first sprocket is attached to the plurality of sprocket attachment members. The first sprocket includes a first sprocket body and a plurality of first sprocket teeth which extends radially outwardly from the first sprocket body with respect to the rotational center axis and a total number of which is equal to or larger than thirty-four. The first sprocket has a plurality of shifting facilitation areas. A total number of the plurality of shifting facilitation areas is a divisor of a total number of the plurality of sprocket attachment members.
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