Shimano Inc.

Souta Yamaguchi

Etsuyoshi Watarai

Shinya Oseto

Satoshi Shahana

Hideki Ikemoto

Yoshimitsu Miki

Kazutaka Fukao

Masahiko Fukuda

Kenji Ose

Satoru Kunisawa

Naohiko Yamada

Shahana Satoshi

Oseto Shinya

A bicycle derailleur is basically provided with a base member, a movable member, a coupling structure and an attachment member. The base member is configured to be mounted to a bicycle. The base member has an inner wire guide. The inner wire guide has an inlet portion and an outlet portion. The movable member supports a chain guide. The coupling structure movably couples the movable member to the base member so that the movable member is selectively movable relative to the base member. The attachment member is detachably and/or rotatably attached to the outlet portion of the inner wire guide.

Bicycle derailleur

A continuous, one-piece bicycle frame end includes a forward portion and a rearward portion, wherein the forward portion extends from a chain stay and a seat stay, and wherein the rearward portion extends rearward from the forward portion. The frame end defines an axle receiving opening dimensioned to receive a bicycle wheel axle therein to rotate around a rotational axis. The axle receiving opening is intersected by a horizontal axis of a Cartesian coordinate system, wherein the axle receiving opening forms the origin of the Cartesian coordinate system, and the zero axis of the Cartesian coordinate system is the portion of the horizontal axis forward of the origin. A derailleur-attachment structure is located from approximately 180&#xb0; to approximately 240&#xb0; in the Cartesian coordinate system.

Rear end structure for a bicycle frame

A bicycle transmission apparatus comprises a controller configured to control at least one transmission device in accordance with a transmission route in response to a shift signal. The controller is configured to adjust the transmission route based on bicycle information relating to a running condition of a bicycle.

Bicycle transmission apparatus

A bicycle rear derailleur includes a stationary member, a base member, a linkage mechanism, a movable member, a chain guide and an inner cable fixing portion. The stationary member non-movably attached to a bicycle frame and includes an outer cable receiving portion configured to receive an outer sheath of a control cable assembly. The base member is pivotally coupled to the stationary member about an axis spaced apart from a hub axis of a rear wheel. A movable member at one end of the linkage mechanism is movable relative to the base member in response to an inner cable that is attached to a portion of the linkage mechanism. The base member can move in response to tension applied by the inner cable without moving the chain guide which is coupled to the movable member.

Bicycle rear derailleur

A bicycle rear derailleur comprises a base member; a movable member that supports a chain guide including a pulley that rotates around a pulley axis, wherein the pulley has a pulley plane; and a linking member coupled between the base member and the movable member so that the chain guide moves laterally relative to the base member between a first lateral position and a second lateral position. The base member has a chain receiving space therein.

Low profile rear derailleur with a chain receiving space

A bicycle rear derailleur comprises a base member, a movable member that supports a chain guide including a pulley that rotates around a pulley axis, and a linking member coupled between the base member and the movable member so that the chain guide moves laterally relative to the base member between a first lateral position and a second lateral position. Examples of features include the linking member being coupled to the base member through separate pivot pins, the linking member straddling the base member, and the base member having link coupling projections with different thicknesses.

Low profile rear derailleur

A bicycle derailleur comprises a base member; a movable member that supports a chain guide, wherein the movable member is coupled to the base member so that the movable member moves relative to the base member for moving a chain among a plurality of sprockets; an intermediate member that mounts the base member to a bicycle frame; a first adjusting mechanism that adjustably sets a position of the intermediate member relative to the bicycle frame; and a second adjusting mechanism that adjustably sets a position of the base member relative to the intermediate member.

Bicycle derailleur with multiple mounting adjustments

A bicycle derailleur mounting structure includes a base member and a stopper. The base member includes a first portion configured for attachment to a bicycle frame. The first portion of the base member has a first side surface and a second side surface with an aperture extending between the first and second side surfaces. The stopper is coupled to the base member between the first and second side surfaces. The stopper is configured for setting an angular position of the base member relative to the bicycle frame.

A bicycle rear derailleur includes a base member, a movable member, a chain cage, a first pulley, a second pulley and a chain guard member. The base member is configured to be mounted to a bicycle. The movable member is movably coupled to the base member. The chain cage is coupled to the movable member to move between at least a first orientation and a second orientation. The first pulley is rotatably mounted relative to the movable member. The second pulley is rotatably mounted to the chain cage to move with the chain cage relative. The chain guard member is movably coupled relative to the movable member. The chain cage includes an engagement portion arranged to move the chain guard member from a first position to a second position when the chain cage is moved from the first orientation to the second orientation.

A main derailleur body includes a first end and a second end. The first end of the main derailleur body is configured to be mounted to a bicycle. A chain cage is pivotally coupled to the second end of the main derailleur body between at least a first orientation and a second orientation. A first pulley is rotatably mounted relative to the main derailleur body. A second pulley is rotatably mounted to the chain cage to move therewith relative to the main derailleur body. A third pulley is rotatably mounted to the main derailleur body such that the third pulley engages a chain extending between the first and second pulleys when the chain cage is in the first orientation and disengages the chain upon movement of the chain cage from the first orientation to the second orientation.

A bicycle rear derailleur includes a base portion, a coupling mechanism, a moveable member, a pivot shaft, a tension plate, a biasing spring and a guide plate. The base portion attaches to a bicycle frame. The coupling mechanism has first and second ends. The first end is coupled to the base portion and the second end is movable relative to the base portion. The movable member is coupled to the second end and the pivot shaft is coupled to the movable member. The tension plate is pivotally coupled to the movable member by the pivot shaft and supports a chain tensioning pulley. The biasing spring is operatively coupled to the movable member and the tension plate for biasing the tension plate in a chain tensioning direction. The guide plate is pivotally coupled to the pivot shaft in a non-biased manner and supports a chain guiding pulley.

Growing community of inventors

Sakai, Japan

Souta Yamaguchi