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公开(公告)号：US20230331339A1
公开(公告)日：2023-10-19
申请号：US17721323
申请日：2022-04-14
Applicant: SHIMANO INC.
Inventor： Kohei OHYABU
Abstract: A crank assembly comprises a crank arm, a front sprocket unit, and a plurality of chain-drop control protrusions. The plurality of chain-drop control protrusions is configured to inhibit a drive chain from getting into a space provided radially inwardly from the plurality of chain-drop control protrusions and between the crank arm and the front sprocket unit in an axial direction. The plurality of chain-drop control protrusions is configured to be provided to at least one of an axially inwardly facing crank-surface of the crank arm and an axially outwardly facing sprocket-surface of the front sprocket unit. The plurality of chain-drop control protrusions is spaced apart from each other in a circumferential direction with respect to the rotational center axis.
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公开(公告)号：US20180238354A1
公开(公告)日：2018-08-23
申请号：US15438642
申请日：2017-02-21
Applicant: Shimano Inc.
Inventor： Yasuyuki KOMADA , Kohei OHYABU
Abstract: A bar-end device assembly is provided for a tube member of a bicycle. The bar-end device assembly has a base member that includes a mounting portion, a first shoe and a second shoe. The mounting portion is configured to be mounted within an interior of a free end provided on the tube member. The first shoe is configured to engage the interior of the tube member as the mounting portion is mounted to the tube member with the first mounting shoe disposed on the mounting portion. The second shoe is configured to engage the interior of the tube member as the mounting portion is mounted to the tube member with the second mounting shoe disposed on the mounting portion. The first and second shoes have different configurations and are used one at a time to change an effective mounting dimension of the base member.
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Patent Agency Ranking
公开(公告)号：US20180118301A1
公开(公告)日：2018-05-03
申请号：US15340938
申请日：2016-11-01
Applicant: SHIMANO INC.
Inventor： Yasuyuki KOMADA , Kohei OHYABU
CPC classification number: B62K23/02 , B62J2099/0046 , B62K19/40 , B62K21/125 , B62K23/06 , B62L3/023
Abstract: A bicycle operating device comprises a base member, an operating member, and a piston. The base member has a longitudinal axis defined along a center axis of a free end of a bicycle handlebar in a mounting state where the base member is mounted to the free end of the bicycle handlebar. The base member includes a cylinder bore having a cylinder center axis. The cylinder bore is at least partly arranged in the bicycle handlebar in the mounting state. The operating member is pivotally coupled to the base member about a pivot axis. The cylinder center axis is inclined relative to the longitudinal axis by an inclination angle equal to or larger than 4 degrees. The piston is movably provided in the cylinder bore and operatively coupled to the operating member to move in the cylinder bore in response to a pivotal movement of the operating member.
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公开(公告)号：US20220379997A1
公开(公告)日：2022-12-01
申请号：US17332942
申请日：2021-05-27
Applicant: SHIMANO INC.
Inventor： Kohei OHYABU , Tomohiro NOMA , Hiroyuki TORII
Abstract: A front sprocket assembly comprises a first sprocket and a second sprocket. The second sprocket includes a second sprocket body and a plurality of second sprocket teeth. At least one tooth of the plurality of second sprocket teeth includes a less chain-interference recess provided to the second axially inwardly facing surface. The less chain-interference recess is configured to reduce interference between the at least one tooth of the plurality of second sprocket teeth and a chain in an upshifting operation in which the chain is shifted from the first sprocket toward the second sprocket. The less chain-interference recess has a radially innermost end positioned radially inwardly from a tooth bottom circle of the plurality of second sprocket teeth. A radial distance radially defined from the tooth bottom circle to the radially innermost end with respect to a rotational center axis is equal to or larger than 1.0 mm.
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公开(公告)号：US20230331340A1
公开(公告)日：2023-10-19
申请号：US17721328
申请日：2022-04-14
Applicant: SHIMANO INC.
Inventor： Kohei OHYABU
CPC classification number: B62M1/36 , B62M9/105 , B62M2009/007
Abstract: A crank assembly comprises a crank arm, a front sprocket unit, and at least one chain-drop control protrusion. The at least one chain-drop control protrusion is configured to inhibit a drive chain from getting into a space provided radially inwardly from the at least one control protrusion and between the crank arm and the front sprocket unit in the axial direction. The at least one chain-drop control protrusion is configured to be provided to at least one of an axially inwardly facing crank-surface of the crank arm and an axially outwardly facing sprocket-surface of the front sprocket unit. The at least one chain-drop control protrusion has a through bore.
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公开(公告)号：US20180208266A1
公开(公告)日：2018-07-26
申请号：US15415778
申请日：2017-01-25
Applicant: SHIMANO INC.
Inventor： Yasuyuki KOMADA , Kohei OHYABU , Shouichi ONO
Abstract: A bicycle operating device comprises a base member and an operating member. The base member is configured to be mounted to a bicycle handlebar. The operating member is movably coupled to the base member. The base member includes a first arrangement part to which at least one of a first operating structure and a first cover structure is arrangeable. The base member includes a second arrangement part to which at least one of a second operating structure and a second cover structure is arrangeable.
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公开(公告)号：US20180118303A1
公开(公告)日：2018-05-03
申请号：US15340934
申请日：2016-11-01
Applicant: SHIMANO INC.
Inventor： Yasuyuki KOMADA , Kohei OHYABU
CPC classification number: B62K23/06 , B62K19/40 , B62K21/125 , B62L3/023
Abstract: A bicycle component mounting device comprises a base member, a holding member, a movable member, and a guide structure. The base member includes a mounting portion. The holding member is movably mounted to the mounting portion. The movable member is movably mounted relative to the base member to push the holding member relative to the mounting portion. The guide structure is configured to guide the holding member relative to the mounting portion in a guide direction inclined relative to a longitudinal axis in response to a movement of the movable member. The guide structure includes a recess and a protrusion. The recess is provided at one of the mounting portion and the holding member. The protrusion is configured to be disposed in the recess and provided at the other of the mounting portion and the holding member.
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