公开(公告)号：US20150072816A1

公开(公告)日：2015-03-12

申请号：US14025733

申请日：2013-09-12

Applicant: Shimano Inc.

Inventor： Sota YAMAGUCHI ,  Toyoto SHIRAI

IPC: F16H7/08

CPC classification number: F16H7/0829 ,  B62M9/16

Abstract: A chain tensioning device is basically provided with a main body, a chain guide, a rotary fluid damper unit and a rotational resistance adjustment device. The main body is configured to be mounted to a bicycle. The chain guide is pivotally coupled to the main body to rotate around a rotational axis with respect to the main body. The rotary fluid damper unit is operatively connected between the main body and the chain guide to provide rotational resistance to the chain guide around the rotational axis. The rotational resistance adjustment device is operatively connected to the rotary fluid damper unit to change a rotational resistance setting of the rotary fluid damper unit with the rotational resistance adjustment device in an operative state.

Abstract translation: 链条张紧装置基本上设置有主体，链条引导件，旋转流体阻尼器单元和旋转阻力调节装置。 主体被配置为安装到自行车上。 链条引导件枢转地联接到主体以相对于主体绕旋转轴线旋转。 旋转流体阻尼器单元可操作地连接在主体和链条引导件之间，以提供围绕旋转轴线的链条引导件的旋转阻力。 旋转阻力调节装置可操作地连接到旋转流体阻尼器单元，以在旋转阻力调节装置处于可操作状态的情况下改变旋转流体阻尼器单元的旋转阻力设定。

公开(公告)号：US20240158045A1

公开(公告)日：2024-05-16

申请号：US18422487

申请日：2024-01-25

Applicant: Shimano Inc.

Inventor： Satoshi SHAHANA ,  Sota YAMAGUCHI

IPC: B62M9/1242 ,  B62M9/125

CPC classification number: B62M9/1242 ,  B62M9/125 ,  B62M9/126

Abstract: A bicycle rear derailleur is configured to be mounted to a bracket device formed separately from the bicycle rear derailleur. The bicycle rear derailleur includes a base element, a movable element, a linkage mechanism, and a chain guide. The base element includes a first base end and a second base end. The movable element is movably arranged relative to the base element. The linkage mechanism connects the movable element to the base element. The chain guide arrangement is rotatably connected to the movable element about a rotational axis. The second base end is coupled to the linkage mechanism. The first base end includes a first base arm and a second base arm. The first base end and the second base end are configured such that the derailleur attachment end is disposed between the first base arm and the second base arm in the mounting state.

公开(公告)号：US20180244345A1

公开(公告)日：2018-08-30

申请号：US15442172

申请日：2017-02-24

Applicant: Shimano Inc.

Inventor： Sota YAMAGUCHI

IPC: B62M9/122 ,  B62M9/1244

CPC classification number: B62M9/122 ,  B62M9/1244

Abstract: A bicycle rear derailleur is basically provided a base member, a movable member, a chain guide and a resistance applying structure. The base member is configured to be mounted to a bicycle. The movable member is movably coupled to the base member. The chain guide is rotatably coupled to the movable member around a first rotational axis. The resistance applying structure includes a friction applying member that applies a frictional resistance to rotational movement of the chain guide. The resistance applying structure is offset from the first rotational axis.

公开(公告)号：US20180202531A1

公开(公告)日：2018-07-19

申请号：US15410653

申请日：2017-01-19

Applicant: SHIMANO INC.

Inventor： Toshinari OOISHI ,  Sota YAMAGUCHI

IPC: F16H55/30

CPC classification number: F16H55/30 ,  B62M9/00 ,  B62M9/10 ,  B62M2009/007

Abstract: A bicycle sprocket comprises a sprocket body and sprocket teeth. The sprocket teeth include at least one first tooth and at least one second tooth. The at least one first tooth has a driving surface, a non-driving surface, a first maximum chain-engaging width, a first tooth center plane, and a first chain-facing surface. The first tooth center plane is defined to bisect the first maximum chain-engaging width in the axial direction. The first chain-facing surface is provided between the driving surface and the non-driving surface in a circumferential direction and is inclined with respect to the first tooth center plane in the circumferential direction. The at least one second tooth has a second maximum chain-engaging width defined in in the axial direction. The first maximum chain-engaging width is larger than the second maximum chain-engaging width.

公开(公告)号：US20180178880A1

公开(公告)日：2018-06-28

申请号：US15390687

申请日：2016-12-26

Applicant: SHIMANO INC.

Inventor： Kenichi AKANISHI ,  Atsuhiro EMURA ,  Sota YAMAGUCHI ,  Toshinari OISHI

IPC: B62M9/10 ,  F16H55/30

CPC classification number: B62M9/10 ,  B62M9/12 ,  F16H55/30

Abstract: A bicycle sprocket comprises a sprocket body and chain-driving teeth. The chain-driving teeth comprises at least one first tooth and at least one second tooth. The at least one first tooth has a first circumferential tooth-length defined in a circumferential direction at a radial location defined in vicinity of a reference line. The at least one second tooth has a second circumferential tooth-length defined in the circumferential direction at the radial location. The first circumferential tooth-length is larger than the second circumferential tooth-length. A dimensional difference between the first circumferential tooth-length and the second circumferential tooth-length is equal to or smaller than 1 mm.

公开(公告)号：US20160236750A1

公开(公告)日：2016-08-18

申请号：US14621996

申请日：2015-02-13

Applicant: Shimano Inc.

Inventor： Atsuhiro EMURA ,  Sota YAMAGUCHI ,  Toshinari OISHI ,  Yusuke NISHIMOTO ,  Kazuki KOSHIYAMA

IPC: B62M9/12 ,  B62M25/02 ,  B62M9/10

CPC classification number: B62M25/02 ,  B62M3/00 ,  B62M9/105 ,  B62M9/122 ,  B62M9/132 ,  B62M25/08

Abstract: A bicycle drive system includes a front sprocket assembly having a first front sprocket and a second front-sprocket. The first front-sprocket has a first front-tooth number that is the largest tooth number in the front sprocket assembly. The second front-sprocket has a second front-tooth number that is less than or equal to the first front-tooth number. The second front-sprocket is adjacent to the first front-sprocket without another sprocket intervening therebetween in an axial direction. The first front-tooth number is less than or equal to 40.

Abstract translation: 自行车驱动系统包括具有第一前链轮和第二前链轮的前链轮组件。 第一前链轮具有第一前齿数，其是前链轮组件中最大的齿数。 第二前链轮具有小于或等于第一前齿数的第二前齿数。 第二前链轮与第一前链轮相邻，在轴向方向上没有另一个链轮介于其间。 第一个前牙数小于或等于40。

公开(公告)号：US20150031483A1

公开(公告)日：2015-01-29

申请号：US13952461

申请日：2013-07-26

Applicant: Shimano Inc.

Inventor： Sota YAMAGUCHI

IPC: B62M9/1242

CPC classification number: B62M9/1242 ,  B62M9/126

Abstract: A bicycle derailleur is basically provided with a main body, a chain cage, a first pulley, a second pulley and a chain contact member. The main body is configured to be mounted to a bicycle. The chain cage is pivotally coupled to the main body movement between at least a first orientation and a second orientation. The first pulley is rotatably coupled to one of the chain cage and the main body. The second pulley is rotatably mounted to the chain cage to move therewith relative to the main body. The chain contact member is coupled to the main body. The chain contact member includes a non-rotatable chain contact portion that projects into a chain path between the first and second pulleys while the chain cage is in the first orientation, and that is located outside of the chain path between the first and second pulleys while the chain cage is in the second orientation.

Abstract translation: 自行车拨链器基本上设置有主体，链条保持架，第一滑轮，第二滑轮和链接构件。 主体被配置为安装到自行车上。 链条笼在至少第一取向和第二取向之间枢转地联接到主体运动。 第一滑轮可旋转地联接到链笼和主体中的一个。 第二滑轮可旋转地安装到链笼上以相对于主体移动。 链接构件联接到主体。 链接构件包括不可旋转的链接部分，其在第一和第二滑轮之间的链路中突出，而链笼处于第一取向，并且位于第一和第二滑轮之间的链路之外， 链笼处于第二方向。

公开(公告)号：US20140213397A1

公开(公告)日：2014-07-31

申请号：US13752622

申请日：2013-01-29

Applicant: SHIMANO INC.

Inventor： Sota YAMAGUCHI ,  Atsuhiro EMURA ,  Tsuyoshi MIYAKE ,  Ryuichiro TAKAMOTO ,  Yoshiyuki KASAI ,  Mao KURODA

IPC: B62M9/122

CPC classification number: B62M9/122 ,  B62K23/04 ,  B62M25/08

Abstract: A rear derailleur is basically provided with a base member, a movable member, a chain guide, a friction element, a one-way clutch and an electric actuator. The base member is configured to be mounted to a bicycle. The movable member is movably coupled to the base member. The chain guide is coupled to the movable member to rotate around a rotational axis with respect to the movable member. The friction element is operatively arranged between the movable member and the chain guide to frictionally provide rotational resistance in a first rotational direction of the chain guide. The one-way clutch is operatively disposed between movable member and the chain guide to engage the friction element as the chain guide rotates in the first rotational direction. The electric actuator is operatively coupled to the one-way clutch to control the one-way clutch between a clutch-on mode and a clutch-off mode.

Abstract translation: 后拨链器基本上设置有基部构件，可动构件，链条引导件，摩擦元件，单向离合器和电动致动器。 基座构件被安装到自行车上。 可移动构件可移动地联接到基座构件。 链条引导件联​​接到可动构件，以相对于可动构件绕旋转轴线旋转。 所述摩擦元件可操作地设置在所述可动构件和所述链条导向件之间，以在所述链条引导件的第一旋转方向上摩擦地提供旋转阻力。 单向离合器可操作地设置在可动构件和链条引导件之间，以在链条引导件沿第一旋转方向旋转时与摩擦元件接合。 电致动器可操作地联接到单向离合器以在离合器接通模式和离合器关闭模式之间控制单向离合器。

公开(公告)号：US20180237103A1

公开(公告)日：2018-08-23

申请号：US15436590

申请日：2017-02-17

Applicant: Shimano Inc.

Inventor： Hiroshi FUJITA ,  Sota YAMAGUCHI

IPC: B62M9/10 ,  F16H55/30

CPC classification number: B62M9/10 ,  F16H55/30

Abstract: A bicycle sprocket assembly is basically provided that includes a sprocket support member. The sprocket support member includes a hub engagement portion, a first sprocket supporting member, and a second sprocket supporting member. The first sprocket supporting member extends from the hub engagement portion in a first axial direction parallel to a rotational center axis of the bicycle sprocket assembly. The second sprocket supporting member extends from the hub engagement portion in a second axial direction parallel to the rotational center axis. The second axial direction is opposite to the first axial direction. At least one of the first sprocket supporting member and the second sprocket supporting member includes a plurality of sprocket supporting arms.

公开(公告)号：US20170313385A1

公开(公告)日：2017-11-02

申请号：US15140441

申请日：2016-04-27

Applicant: SHIMANO INC.

Inventor： Atsuhiro EMURA ,  Toshinari OISHI ,  Yusuke NISHIMOTO ,  Sota YAMAGUCHI ,  Kohei OBUCHI ,  Kento MITSUYASU

IPC: B62M9/04

CPC classification number: B62M9/04 ,  B62K25/286 ,  B62M9/12 ,  B62M9/124 ,  B62M9/134 ,  B62M25/045 ,  B62M2025/006

Abstract: A bicycle transmission apparatus comprises a base member, a first transmission member, a second transmission member, a first coupling member, a first guide structure, a switching device, and a transmission controller. The switching device is configured to switch a position of the first transmission member relative to the base member in an axial direction between a first axial position and a second axial position. The transmission controller is configured to control the switching device and the first guide structure so as not to change a first engagement state of the first coupling member from one cogwheel to another adjacent cogwheel among first cogwheels when the first transmission member moves relative to the base member in association with a movement of the first guide structure relative to the base member to change a second engagement state of the first coupling member from one cogwheel to another adjacent cogwheel among second cogwheels.