A derailleur comprises a base member configured to be attached to a human-powered vehicle frame, a movable member movable with respect to the base member, a pulley assembly pivotally attached to the movable member in a first pivotal direction and a second pivotal direction opposite to the first pivotal direction and including a first pulley having a first pulley axis and a second pulley having a second pulley axis, a pulley assembly biasing member configured to bias the pulley assembly with respect to the movable member in the first pivotal direction, a pulley distance (centimeter) being defined between the first pulley axis and the second pulley axis, a biasing return force (newton) being defined by rotational force of the pulley assembly relative to the movable member, and a return value defined by the biasing return force multiplied by the pulley distance. The return value is 136 or larger.

A derailleur comprises a base member configured to be attached to a human-powered vehicle frame, a movable member movable with respect to the base member, a pulley assembly pivotally attached to the movable member in a first pivotal direction and a second pivotal direction opposite to the first pivotal direction and including a first pulley having a first pulley axis and a second pulley having a second pulley axis, a pulley assembly biasing member configured to bias the pulley assembly with respect to the movable member in the first pivotal direction, a pulley distance (centimeter) being defined between the first pulley axis and the second pulley axis, a biasing return force (newton) being defined by rotational force of the pulley assembly relative to the movable member, and a return value defined by the biasing return force multiplied by the pulley distance. The return value is 136 or larger.

A bicycle derailleur includes a base element, a movable element having a receptacle and movably coupled to the base element, a rotary shaft mounted in the movable element in the receptacle to be rotatable about an axis of rotation, and a chain guide assembly rotatable relative to the movable element about the axis of rotation and which is coupled rotationally conjointly to the rotary shaft. An elastic force store device exerts on the chain guide assembly a preload force which preloads said chain guide assembly in a direction of rotation relative to the movable element. A damping device acts directly or indirectly between the movable element and the chain guide assembly and has a coupling device arranged radially within the first elastic force store device by which the damping device is coupled to a support, which is static in relation to the movable element, and the rotary shaft.

A bicycle derailleur includes a base element, a movable element having a receptacle and movably coupled to the base element, a rotary shaft mounted in the movable element in the receptacle to be rotatable about an axis of rotation, and a chain guide assembly rotatable relative to the movable element about the axis of rotation and which is coupled rotationally conjointly to the rotary shaft. An elastic force store device exerts on the chain guide assembly a preload force which preloads said chain guide assembly in a direction of rotation relative to the movable element. A damping device acts directly or indirectly between the movable element and the chain guide assembly and has a coupling device arranged radially within the first elastic force store device by which the damping device is coupled to a support, which is static in relation to the movable element, and the rotary shaft.

The invention relates to an electromechanical derailleur for mounting on a rear wheel axis. The derailleur has a stationary element, a pivoting mechanism, a movable element having a chain guide arrangement, and a gearing housing. The gearing housing receives an electromechanical drive for driving the pivoting mechanism. The stationary element defines a housing void in which the gearing housing is disposed, and has a fastener for a power source. The power source is fastened to the stationary element such that said power source is electrically connected to the electromechanical drive in the gearing housing.

The invention relates to an electromechanical derailleur for mounting on a rear wheel axis. The derailleur has a stationary element, a pivoting mechanism, a movable element having a chain guide arrangement, and a gearing housing. The gearing housing receives an electromechanical drive for driving the pivoting mechanism. The stationary element defines a housing void in which the gearing housing is disposed, and has a fastener for a power source. The power source is fastened to the stationary element such that said power source is electrically connected to the electromechanical drive in the gearing housing.

A bicycle rear derailleur comprises a base member, a linkage structure, a movable member, a first pulley assembly, and a second pulley assembly. The first pulley assembly includes a first pulley support and a first toothed pulley. The first pulley support is pivotally coupled to the movable member about a first pivot axis. The first toothed pulley is rotatably coupled to the first pulley support about a first pulley axis spaced apart from the first pivot axis. The second pulley assembly includes a second pulley support, a second toothed pulley, and a third toothed pulley. The second pulley support is pivotally coupled to the movable member about a second pivot axis. The second toothed pulley is rotatably coupled to the second pulley support about a second pulley axis. The third toothed pulley is rotatably coupled to the second pulley support about a third pulley axis.

A derailleur for a human-powered vehicle comprises a base member, a movable member, a linkage, an electrical actuator, a first biasing member, and a second biasing member. The base member is configured to be attached to a vehicle body of the human-powered vehicle. The movable member is configured to be movable relative to the base member in a first direction and a second direction different from the first direction. The linkage is configured to movably connect the movable member to the base member. The electrical actuator is configured to operatively move the movable member relative to the base member. The first biasing member is configured to deform if first external force is applied to move the movable member in the first direction. The second biasing member is configured to deform if second external force is applied to move the movable member in the second direction.

An apparatus for a bicycle includes an intermediate power connector configured for transmitting power between a bicycle component and a power source positioned remote from the bicycle component. The intermediate power connector has a coupling portion configured for removable attachment to a connecting portion of the bicycle component. The bicycle component can also include a battery having a battery coupling portion configured for removable attachment to the connecting portion of the bicycle component. The battery and the intermediate power connector can be selectively attachable to the bicycle component to provide power thereto.

A rear derailleur is configured as a hierarchical, at least two-level modular construction system and comprises at least several of the modules: “base element module”, “swivel formation module”, “shifting element module”, and “chain guiding device module”. At least one of the modules is replaceable and handleable in one piece. At least one of the modules includes at least one sub-assembly that is replaceable and handleable in one piece. In an embodiment the modular construction system is configured to use at least one family of sub-assemblies comprising at least two family members within at least one of the modules.

Detachable connection interfaces of the family members to adjacent sub-assemblies of the module within the sub-assembly family are configured uniformly across family members for the respective sub-assembly family in such a way that a family member of the sub-assembly family of the module is exchangeable for another family member of the same sub-assembly family that, is for example, of different material, of different design, of different functionality or has different surface properties, while retaining the remaining sub-assemblies of the module.