Shimano Inc.

Panasonic Corporation

Naoki Fujimoto

Yoshimitsu Miki

Tsuyoshi Fukumori

Takeshi Ueda

Kentaro Kosaka

Tsuyoshi Nakamura

Yasuyuki Komada

Shun Kakehashi

Yasuhisa Watanabe

Katsuhiro Tachibana

Yutaro Yamada

Shohei Yonehama

Kengo Yasumura

Hiroyuki Awano

Shinji Kawamura

Yasuhiro Sasano

Keigo Sato

A chain guide comprises a first guide member and a second guide member. The first guide member includes a first guide plate. The second guide member includes a second guide plate and an extending part. The extending part extends from the second guide plate toward the first guide plate. The extending part includes a first extending part and a second extending part. The first extending part has a first end portion, a second end portion, and a first intermediate portion. The second extending part has a third end portion, a fourth end portion, and a second intermediate portion. The first intermediate portion is spaced apart from the second intermediate portion. The first end portion is coupled to the second guide plate. The third end portion is coupled to the second guide plate. The second end portion is coupled to the fourth end portion.

Chain guide of bicycle derailleur

A shifting system for a human-powered vehicle comprises a controller. The controller is configured to receive a driving torque and a cadence of the human-powered vehicle from at least one sensor. The controller is configured to determine a permitted shift timing based on the driving torque and the cadence. The controller is further configured to control a shift mechanism to perform a gear shift during the permitted shift timing in accordance with a permitted cadence range and a first threshold of the driving torque.

Shifting system for human-powered vehicle

A bicycle derailleur comprises a base member, a movable member, a motor unit, and a controller. The controller is configured to control the motor unit to rotate an output shaft of the motor unit at a first maximum voltage during a first shifting operation of the chain in a first shifting direction. The controller is configured to control the motor unit to rotate the output shaft of the motor unit at a second maximum voltage during a second shifting operation of the chain in a second shifting direction. The first maximum voltage is different from the second maximum voltage. The bicycle derailleur is configured to receive electricity from an electric power source configured to supply electricity to an assist driving unit.

Bicycle derailleur and bicycle rear derailleur

A front derailleur comprises a base member, a chain guide, and a linkage structure. The base member includes a mounting hole. The mounting hole has a center axis. The linkage structure comprises a first link member and a second link member. The first link member is pivotally coupled to the base member about a first pivot axis. The second link member is pivotally coupled to the base member about a second pivot axis. The first link member is pivotally coupled to the chain guide about a third pivot axis. The second link member is pivotally coupled to the chain guide about a fourth pivot axis. At least three of the first pivot axis, the second pivot axis, the third pivot axis, and the fourth pivot axis are non-parallel to and non-perpendicular to the center axis of the mounting hole.

Front derailleur and chain guide of bicycle derailleur

A bicycle derailleur comprises a base member, a chain guide, a motor unit, and a linkage structure. The base member has at least one first link-pin-receiving opening. The motor unit has at least one second link-pin-receiving opening. The linkage structure comprises at least one link member and at least one link pin. The at least one link member is configured to movably couple the chain guide to the base member. The at least one link member has at least one third link-pin-receiving opening. The at least one link pin is configured to pivotally couple the at least one link member to the base member about at least one link pivot axis. One of the at least one link pin is configured to extend through the at least one first link-pin-receiving opening, the at least one second link-pin-receiving opening, and the at least one third link-pin-receiving opening.

Bicycle derailleur and link pin for bicycle derailleur

A derailleur comprises a base member, a movable member, a linkage structure, a pulley assembly, and a rotational force control structure configured to control rotational force of the pulley assembly relative to the movable member. The pulley assembly is pivotally movable relative to the movable member about a pivot axis in first and second directions. The pulley assembly is configured to move in the first direction upon moving from a second pivotal position toward a first pivotal position. The rotational force control structure includes a cam member having a first cam surface, an abutment member configured to abut the first cam surface, and a biasing member configured to bias the abutment member. The abutment member is configured to abut the first cam surface by the biasing member to apply first additional force to the pulley assembly in the first direction while the pulley assembly is in the first pivotal position.

Derailleur for human-powered vehicle

A bicycle derailleur comprises a base member, a linkage structure, and a motor unit. The linkage structure includes a first link pin rotatably mounted to the base member about a first pivot axis. The motor unit is configured to apply rotational force to the first link pin to rotate the first link pin relative to the base member about the first pivot axis.

Bicycle derailleur, bicycle gear structure, bicycle motor unit, and front derailleur

A bicycle derailleur comprises a base member, a movable member, a motor unit, and a controller. The controller is configured to control the motor unit to rotate an output shaft of the motor unit at a first maximum voltage during a first shifting operation of the chain in a first shifting direction. The controller is configured to control the motor unit to rotate the output shaft of the motor unit at a second maximum voltage during a second shifting operation of the chain in a second shifting direction. The first maximum voltage is different from the second maximum voltage.

Bicycle derailleur and method of controlling bicycle derailleur

An electric front derailleur is basically provided with a base, a chain guide, a linkage and an electric motor unit. The base is configured to be mounted to a bicycle. The chain guide is configured to guide a chain. The linkage movably couples the chain guide to the base in a forward-rearward direction to move the chain guide between a retracted position and an extended position in a mounted state where the base is mounted to the bicycle. The electric motor unit is supported on the base and operatively coupled to the linkage to move the chain guide between the retracted position and the extended position. The electric motor unit is arranged at least partly closer to the bicycle than the chain guide.

Electric front derailleur

A bicycle chain guide includes a base and a chain guide. The base is configured to be mounted to a bicycle that includes a solitary sprocket having a rotational center axis. The chain guide is disposed above the solitary bicycle sprocket in a mounted state where the base is mounted to the bicycle. The chain guide includes a first guide plate, a second guide plate, and a bridge. The first guide plate has a first guiding surface. The second guide plate is closer to the base than the first guide plate and has a second guiding surface facing the first guiding surface to define a chain guiding slot between the first guiding surface and the second guiding surface. The bridge connects the first guide plate and the second guide plate.

Bicycle chain guide assembly

A shifting system for a human-powered vehicle comprises a controller. The controller is configured to receive a driving torque and a cadence of the human-powered vehicle from at least one sensor. The controller is configured to determine a permitted shift timing based on the driving torque and the cadence. The controller is further configured to control a shift mechanism to perform a gear shift during the permitted shift timing.

A bracket cover is configured to cover at least a portion of a bracket that is attachable to a handlebar of a bicycle. The bracket cover comprises a cover main body. The cover main body is formed in a tubular shape having a first end portion and a second end portion. The cover main body has an opening part extending from at least one of the first end portion and the second end portion such that the opening part forms a first edge portion and a second edge portion.

Bracket cover

A bracket cover is configured to cover at least a portion of a bracket that is attachable to a handlebar of a bicycle. The bracket cover includes a cover main body, a first fixing member and a second fixing member. The cover main body includes a portion having a first edge portion and a second edge portion. The portion is between the first and second edge portions being an elastic material. The first fixing member is configured to detachably fix the cover main body to a first side surface of an outer perimeter portion of the bracket at the first edge portion. The second fixing member is configured to detachably fix the cover main body to a second side surface of an outer perimeter portion of the bracket at the side edge portion. The first and second fixing member are separate members from the cover main body.

A bicycle operating device is basically provided with a base member, a first operating member and an attachment. The base member has an interior space that is configured to receive an operating unit. The first operating member is configured to move along a first operating path from a rest position to an operated position to operate the operating unit when the operating unit is disposed in the interior space. The attachment blocks the first operating path to prevent movement of the first operating member from reaching the operated position.

Growing community of inventors

Osaka, Japan

Naoki Fujimoto