Electromechanical rear derailleur
AssigneeSram, LLC
InventorsChristopher Shipman, Brian Jordan
Life of this patent
Estimating the term…
Abstract
An electromechanical rear derailleur is provided for a bicycle, including a base member for attachment to the bicycle. A movable member has a cage assembly attached thereto. A linkage is provided that couples the movable member to the base member and operative to enable movement of the movable member relative to the base member in a direction substantially parallel to the mounting axis. A power source powers an motor module connected thereto to move the movable member and elements thereon.
Claims12
An electromechanical rear derailleur for a bicycle, comprising:
- a base member attachable to the bicycle along a mounting axis;
- a movable member having a cage assembly attached thereto, wherein the cage assembly is pivotably connected to the movable member such that it is pivotable about an axis of rotation relative to the movable member;
- a linkage including pivot axes oriented substantially perpendicular to the mounting axis, the linkage coupling the movable member to the base member and operative to enable movement of the movable member relative to the base member;
- a power source;
- a motor electrically connected to the power source;
- and
- a transmission coupled to and actuated by the motor to move the movable member;
- and
- an offset jockey wheel having a rotational axis that is offset from said axis of rotation of the cage assembly about the movable member.
An electromechanical rear derailleur for a bicycle, comprising:
- a base member attachable to the bicycle along a mounting axis;
- a movable member having a cage assembly attached thereto, wherein the cage assembly is pivotably connected to the movable member such that it is pivotable about an axis of rotation relative to the movable member;
- a linkage including pivot axes oriented substantially perpendicular to the mounting axis, the linkage coupling the movable member to the base member and operative to enable movement of the movable member relative to the base member;
- a power source disposed on the base member;
- a motor electrically connected to the power source;
- and
- a transmission coupled to and actuated by the motor to move the movable member;
- and
- an offset jockey wheel having a rotational axis that is offset from said axis of rotation of the cage assembly about the movable member.
An electromechanical rear derailleur for a bicycle, comprising:
- a base member attachable to the bicycle along a mounting axis;
- a movable member having a cage assembly attached thereto, wherein the cage assembly is pivotably connected to the movable member such that it is pivotable about an axis of rotation relative to the movable member;
- a linkage being a straight parallelogram type, the linkage coupling the movable member to the base member and operative to enable movement of the movable member relative to the base member;
- a power source;
- a motor electrically connected to the power source;
- and
- a transmission coupled to and actuated by the motor to move the movable member;
- and
- an offset jockey wheel having a rotational axis that is offset from said axis of rotation of the cage assembly about the movable member.
Dependencies are inferred from the claim text.