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公开(公告)号：US11572128B2
公开(公告)日：2023-02-07
申请号：US16877873
申请日：2020-05-19
Applicant: Shimano Inc.
Inventor： Kohei Obuchi , Yasuyuki Komada , Nobuyoshi Fujii
Abstract: A piston assembly is provided for a human-powered vehicle. The piston assembly includes a main body, a primary seal and a secondary seal. The main body is configured to be movable from a rest position to an actuated position along an actuation direction in a cylinder bore. The primary seal includes a primary seal body arranged on the main body, the primary seal body being made of the first seal material. The secondary seal includes a secondary seal body arranged on the main body at upstream of the primary seal with respect to the actuation direction. The secondary seal body is made of a second seal material that is more elastic than the first seal material.
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公开(公告)号：US10407128B2
公开(公告)日：2019-09-10
申请号：US15281067
申请日：2016-09-30
Applicant: Shimano Inc.
Inventor： Atsuhiro Emura , Kenkichi Inoue , Kohei Obuchi
IPC: B62M9/1342
Abstract: A bicycle front derailleur includes a base member to be mounted to a bicycle frame, a chain guide, a first link pivotally connected to the chain guide about a first pivot axis, and a second link pivotally connected to the chain guide about a second pivot axis. The chain guide includes a link-connecting structure pivotally connected to the first link. The link-connecting structure includes a first link-connecting portion and a second link-connecting portion. The first link includes a first chain guide-connecting portion and a second chain guide-connecting portion. At least one of the first link-connecting portion and the second link-connecting portion is located between the first chain guide-connecting portion and the second chain guide-connecting portion.
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公开(公告)号：US09789928B2
公开(公告)日：2017-10-17
申请号：US15013955
申请日：2016-02-02
Applicant: SHIMANO INC.
Inventor： Atsuhiro Emura , Toshinari Oishi , Yusuke Nishimoto , Sota Yamaguchi , Kohei Obuchi
CPC classification number: B62M6/50 , B62K25/286 , B62M9/12 , B62M9/134 , B62M9/14 , B62M25/08 , B62M2025/006 , F16H57/05
Abstract: A bicycle transmission apparatus comprises a base member, a first transmission member, a second transmission member, and a first coupling member. The first transmission member is rotatable relative to the base member about a first rotational axis and is movable relative to the base member in an axial direction parallel to the first rotational axis. The second transmission member is rotatable relative to the base member about a second rotational axis and is stationary relative to the base member in the axial direction. The first coupling member is configured to couple the first transmission member to the second transmission member to transmit rotation of the first transmission member to the second transmission member at a variable speed stage which is variable in accordance with at least one positional relationship among the first transmission member, the second transmission member, and the first coupling member in the axial direction.
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公开(公告)号：US11292552B2
公开(公告)日：2022-04-05
申请号：US16877862
申请日：2020-05-19
Applicant: Shimano Inc.
Inventor： Kohei Obuchi , Yasuyuki Komada , Nobuyoshi Fujii
Abstract: A piston assembly is provided for a human-powered vehicle. The piston assembly includes a main body and a primary seal. The main body is configured to be movable from a rest position to an actuated position along an actuation direction in a cylinder bore. The primary seal includes a primary seal body arranged on the main body. The primary seal body is made of a resin material. The main body includes a first part and a second part. The first part is at least partly arranged upstream of the primary seal with respect to the actuation direction. The second part is coupled to the first part to be at least partly arranged downstream of the primary seal with respect to the actuation direction. The at least one of the first part and the second part includes a support portion supporting the primary seal.
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公开(公告)号：US10967932B2
公开(公告)日：2021-04-06
申请号：US15838541
申请日：2017-12-12
Applicant: Shimano Inc.
Inventor： Mototsugu Nakai , Kohei Obuchi , Natsuki Noma
Abstract: A hydraulic operating device for a small vehicle including a bicycle is basically provided with a base member, an operating member, a piston, a handlebar fixing structure and a hydraulic reservoir tank. The base member includes a cylinder having a cylinder bore. The operating member is pivots about a pivot axis to move the piston within the cylinder bore. The handlebar fixing structure defines a handlebar arrangement area. The hydraulic reservoir tank has a hydraulic fluid chamber fluidly connected to the cylinder bore. The cylinder defines a hydraulic pressure chamber with a space between the piston and a fluid outlet port of the cylinder. The hydraulic reservoir tank is partially disposed on a first side of the handlebar fixing structure while the hydraulic pressure chamber is disposed on a second side of the handlebar fixing structure as view in the pivot axis direction.
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Patent Agency Ranking
公开(公告)号：US09873287B2
公开(公告)日：2018-01-23
申请号：US15056931
申请日：2016-02-29
Applicant: SHIMANO INC.
Inventor： Atsuhiro Emura , Toshinari Oishi , Yusuke Nishimoto , Sota Yamaguchi , Kohei Obuchi
CPC classification number: B60B27/023 , B60B27/0031 , B60B27/047 , B60Y2200/13 , B62M9/10 , F16D27/118 , F16D28/00 , F16D41/24 , F16D41/26 , F16D41/36 , F16D48/06
Abstract: A bicycle hub assembly comprises a hub axle, a hub shell, a sprocket support body, and a clutch. The sprocket support body is rotatably mounted on the hub axle to rotate about a rotational axis. The sprocket support body is rotatable relative to the hub axle and the hub shell about the rotational axis. The clutch has a first coupling state where a pedaling rotational force is transmitted from the sprocket support body to the hub shell in a first rotational direction during pedaling, a first release state where the hub shell is rotatable relative to the sprocket support body in the first rotational direction during coasting, and a second coupling state where a coasting rotational force is transmitted from the hub shell to the sprocket support body in the first rotational direction during coasting.
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公开(公告)号：US11359721B1
公开(公告)日：2022-06-14
申请号：US17105776
申请日：2020-11-27
Applicant: SHIMANO INC.
Inventor： Mototsugu Nakai , Yusuke Hosomi , Kohei Obuchi , Takanori Yoshida
Abstract: A hydraulic device comprises a base member, a piston, a seal ring, and an intermediate member. The base member includes a cylinder bore and an annular groove. The annular groove includes a first inner surface and a second inner surface. The piston is movable relative to the base member from a rest position toward an actuated position in a second direction opposite to a first direction. The piston is movable relative to the base member from the actuated position toward the rest position in the first direction. The seal ring includes a first axial surface facing in the first direction and a second axial surface facing in the second direction. The seal ring is provided in the annular groove so as to define a clearance between the first axial surface and the first inner surface. The intermediate member is provided in the clearance.
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公开(公告)号：US11325674B1
公开(公告)日：2022-05-10
申请号：US17330360
申请日：2021-05-25
Applicant: SHIMANO INC.
Inventor： Kohei Obuchi , Nobuyoshi Fujii
IPC: B62K23/06
Abstract: An operating device comprises a base member, an operating member, a piston, and a coupling structure. The base member includes a cylinder bore having a cylinder center axis. The operating member is movable relative to the base member between a rest position and an operated position. The piston is movably provided in the cylinder bore and is coupled to the operating member to be pulled in a pulling direction in response to a pulling movement of the operating member from the rest position to the operated position. The operating member includes a cam surface including a curved surface. The base member includes a guide groove linearly extending in the pulling direction. The coupling structure includes a follower configured to be in contact with the cam surface to receive the pulling movement, and a guided part movably provided in the guide groove to move the follower in the pulling direction.
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公开(公告)号：US11161569B2
公开(公告)日：2021-11-02
申请号：US15897507
申请日：2018-02-15
Applicant: Shimano Inc.
Inventor： Kenkichi Inoue , Kohei Obuchi , Mineho Masuda
IPC: B62M9/135 , B62K19/34 , B62M9/131 , B62M9/1342 , B62M9/136
Abstract: A bicycle front derailleur is provided that can be easily coupled to a bicycle frame. The bicycle front derailleur includes a base member, a chain guide and a link mechanism. The base member is configured to be coupled to a bottom bracket hanger of the bicycle frame. The chain guide is configured to guide a chain. The link mechanism connects the chain guide to the base member to move the chain guide between a retracted position and an extended position. The base member includes a recess configured to accommodate a part of the chain guide in a state where the chain guide is located at the retracted position.
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公开(公告)号：US10889348B2
公开(公告)日：2021-01-12
申请号：US16136832
申请日：2018-09-20
Applicant: Shimano Inc.
Inventor： Kentaro Miyazaki , Kazutaka Fukao , Yoshimitsu Miki , Kohei Obuchi
Abstract: A bicycle operating device includes a base member coupled to a handlebar clamp and a user operated member movably coupled to the base member to move a mechanical control cable with respect to the base member. The base member includes a coupling portion coupled to the handlebar clamp. The coupling portion includes an elongated hole having a long direction extending parallel to a center axis of the handlebar clamp. The coupling portion is coupled to the handlebar clamp via a fastener extending into the elongated hole. The user operated member is movable with respect to the base member between a rest position and an operated position. The bicycle operating device does not mechanically fix a position of the mechanical control cable with respect to the base member in accordance with movement of the user operated member between the rest position and the operated position.
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