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公开(公告)号：US20180141612A1
公开(公告)日：2018-05-24
申请号：US15359084
申请日：2016-11-22
Applicant: Shimano Inc.
Inventor： Nobukatsu HARA , Kenji KAMADA , Masahiro NAKAKURA
CPC classification number: B62L3/023 , B62K21/125 , B62K23/06 , B62M25/04
Abstract: A bicycle hydraulic operating system is basically provided with a first base member, a piston, a first operating member, a second base member and a second operating member. The first base member includes a first bicycle fixing structure and a hydraulic cylinder defining a cylinder bore. The piston is movably disposed in the cylinder bore of the first base member. The first operating member is movably mounted to the first base member. The first operating member is operatively coupled to the piston to move the piston in the cylinder bore of the first base member. The second base member includes a second bicycle fixing structure. The second operating member is movably mounted to the second base member. The second operating member is operatively coupled to the piston to move the piston in the cylinder bore of the first base member.
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公开(公告)号：US20180099725A1
公开(公告)日：2018-04-12
申请号：US15288960
申请日：2016-10-07
Applicant: Shimano Inc.
Inventor： Kenji KAMADA , Azusa YAMAZAKI
Abstract: A bicycle rear sprocket assembly is basically provided that includes a first sprocket including a first sprocket body and a plurality of first sprocket teeth provided to an outer periphery thereof. Each of a plurality of first circumferential areas has a first circumferential length. A first total number of the plurality of first circumferential areas is an even number. A first circumferential area counting number from a driving surface of a first shifting initiation tooth to a driving surface of a second shifting initiation tooth in a driving rotational direction of the bicycle rear sprocket assembly is an odd number. A second circumferential area counting number from the driving surface of the second shifting initiation tooth to the driving surface of the first shifting initiation tooth in the driving rotational direction is an odd number. The first circumferential area counting number is different from the second circumferential area counting number.
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公开(公告)号：US20180009505A1
公开(公告)日：2018-01-11
申请号：US15204957
申请日：2016-07-07
Applicant: SHIMANO INC.
Inventor： Kenji KAMADA
CPC classification number: B62M9/10 , F16H55/30 , F16H55/566
Abstract: A bicycle rear sprocket assembly comprises a first sprocket. The first sprocket includes a first sprocket body, a plurality of first sprocket teeth, a bearing unit mounting section, and a first torque-transmitting structure. The plurality of first sprocket teeth extend radially outwardly from a first radially outer periphery of the first sprocket body with respect to a rotational center axis. The bearing unit mounting section is at least partly provided to a first radially inner periphery of the first sprocket body. The first torque-transmitting structure is configured to transmit pedaling torque to a second sprocket separately disposed adjacent to the first sprocket without another sprocket between the first sprocket and the second sprocket. The first torque-transmitting structure is provided to a first bicycle inbound facing surface and is a separate member from the second sprocket.
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公开(公告)号：US20210155317A1
公开(公告)日：2021-05-27
申请号：US16698815
申请日：2019-11-27
Applicant: Shimano Inc.
Inventor： Kenji KAMADA
IPC: B62M9/1248 , B62M9/122
Abstract: A derailleur comprises a base member configured to be attached to a human-powered vehicle frame, a movable member movable with respect to the base member, a pulley assembly pivotally attached to the movable member in a first pivotal direction and a second pivotal direction opposite to the first pivotal direction and including a first pulley having a first pulley axis and a second pulley having a second pulley axis, a pulley assembly biasing member configured to bias the pulley assembly with respect to the movable member in the first pivotal direction, a pulley distance (centimeter) being defined between the first pulley axis and the second pulley axis, a biasing return force (newton) being defined by rotational force of the pulley assembly relative to the movable member, and a return value defined by the biasing return force multiplied by the pulley distance. The return value is 136 or larger.
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公开(公告)号：US20200223255A1
公开(公告)日：2020-07-16
申请号：US16245256
申请日：2019-01-11
Applicant: SHIMANO INC.
Inventor： Kenji KAMADA
Abstract: A hub assembly for a human-powered vehicle comprises a hub axle, a first rotatable member, a second rotatable member, and a rotation control structure. The rotation control structure couples the first rotatable member to the second rotatable member to transmit a first input rotation of the first rotatable member to the second rotatable member at a first ratio of a first output rotation of the second rotatable member to the first input rotation of the first rotatable member. The rotation control structure couples the second rotatable member to the first rotatable member to transmit a second input rotation of the second rotatable member to the first rotatable member at a second ratio of a second output rotation of the first rotatable member to the second input rotation of the second rotatable member. The second ratio is different from the first ratio. The second ratio is larger than 0.
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Patent Agency Ranking
公开(公告)号：US20180252294A1
公开(公告)日：2018-09-06
申请号：US15447015
申请日：2017-03-01
Applicant: SHIMANO INC.
Inventor： Kenji KAMADA , Koji YUASA
CPC classification number: F16G13/06 , B62M9/10 , B62M9/12 , B62M2009/005 , F16H55/30
Abstract: A bicycle chain comprises a first inner link plate comprising a first end portion, a second end portion, and a first intermediate portion. A second inner link plate is spaced apart from the first inner link plate in an axial direction. The second inner link plate comprises a third end portion, a fourth end portion, and a second intermediate portion. The first inner link plate includes a first outer surface and a first inner surface opposite to the first outer surface in the axial direction. The second inner link plate includes a second outer surface and a second inner surface opposite to the second outer surface in the axial direction. The first intermediate portion has an axial recess formed on the first inner surface in the axial direction. The second intermediate portion is free from an axial recess formed on the second inner surface in the axial direction.
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公开(公告)号：US20160280325A1
公开(公告)日：2016-09-29
申请号：US14667601
申请日：2015-03-24
Applicant: SHIMANO INC.
Inventor： Etsuyoshi WATARAI , Kenji KAMADA , Koji YUASA
Abstract: A bicycle sprocket comprises a sprocket body and a chain engagement structure. The chain engagement structure includes a plurality of sprocket teeth. The plurality of sprocket teeth include at least one first tooth and at least one second tooth. The at least one first tooth has a first tooth top extending non-parallel to a sprocket-plane perpendicular to a rotational center axis when viewed from a radial direction of the bicycle sprocket. The at least one first tooth has a first axial chain-engagement width that is larger than an inner link space defined between a pair of inner link plates of a bicycle chain and smaller than an outer link space defined between a pair of outer link plates of the bicycle chain. The at least one second tooth has a second axial chain-engagement width that is smaller than the inner link space.
Abstract translation: 自行车链轮包括链轮主体和链条接合结构。 链条接合结构包括多个链轮齿。 多个链轮齿包括至少一个第一齿和至少一个第二齿。 当从自行车链轮的径向方向观察时，所述至少一个第一齿具有不平行于垂直于旋转中心轴线的链轮平面延伸的第一齿顶。 所述至少一个第一齿具有第一轴向链接宽度，该第一轴向链接宽度大于在自行车链条的一对内连接板之间限定的内链节空间，并且小于在一对外链节板之间限定的外链节空间 自行车链。 所述至少一个第二齿具有小于所述内链节空间的第二轴向链接宽度。
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公开(公告)号：US20220063760A1
公开(公告)日：2022-03-03
申请号：US17005877
申请日：2020-08-28
Applicant: SHIMANO INC.
Inventor： Kenji KAMADA
Abstract: A bicycle sprocket assembly comprises a first sprocket and a second sprocket. The first sprocket includes a plurality of first sprocket teeth, a first sprocket inward surface, a first sprocket outward surface, and an axial space. The second sprocket includes a plurality of second sprocket teeth, a second sprocket inward surface, and a second sprocket outward surface. The axial space is defined between the first sprocket outward surface and an axially inward outer link plate in the axial direction while the second sprocket outward surface contacts an axially outward inner link plate in an engagement state where the one of the plurality of the second sprocket teeth is positioned between an axially inward inner link plate and the axially outward inner link plate in the axial direction. The axial space is larger than 0 mm and equal to or smaller than 0.15 mm.
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公开(公告)号：US20200011408A1
公开(公告)日：2020-01-09
申请号：US16028425
申请日：2018-07-06
Applicant: SHIMANO INC.
Inventor： Azusa YAMAZAKI , Kenji KAMADA
Abstract: A bicycle sprocket comprises a sprocket body and a plurality of sprocket teeth. The plurality of sprocket teeth includes at least one first axially recessed upshifting-facilitation tooth with respect to a rotational center axis. The plurality of sprocket teeth includes at least one first axially recessed downshifting-facilitation tooth with respect to the rotational center axis. The at least one first axially recessed downshifting-facilitation tooth is adjacent to the at least one first axially recessed upshifting-facilitation tooth without another tooth therebetween in a circumferential direction with respect to the rotational center axis. The at least one first axially recessed upshifting-facilitation tooth and the at least one first axially recessed downshifting-facilitation tooth provide a first continuous recess extending in the circumferential direction.
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公开(公告)号：US20190300119A1
公开(公告)日：2019-10-03
申请号：US16289976
申请日：2019-03-01
Applicant: Shimano Inc.
Inventor： Satoshi SHAHANA , Kenji KAMADA
Abstract: A human-powered vehicle control device includes an electronic controller for controlling a transmission that changes a ratio of a rotational speed of a drive wheel to a rotational speed of a crank of the human-powered vehicle. The electronic controller switches the transmission from a first control state to a second control state in accordance with at least one of a human drive force, a rider's posture, a vehicle body attitude, a handle force, and a human-powered vehicle travel state, In the first control state, the electronic controller controls the transmission to change the ratio in accordance with an operation of a shift operating unit. In the second control state, irrespective of the operation of the shift operating unit, the electronic controller controls the transmission such that the ratio increases in accordance with the travel state of the human-powered vehicle and/or a travel environment of the human-powered vehicle.
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