Electrically operated derailleur with power storing mechanism
First Claim
1. A derailleur for a bicycle comprising:
- a base member for attaching the derailleur to the bicycle;
a movable member for supporting a chain guide;
a linkage mechanism coupling the base member to the movable member so that the movable member is capable of movement relative to the base member;
an electrically operated actuating member operatively coupled to the linkage mechanism, wherein moving the actuating member in a first direction causes the movable member to move laterally toward the bicycle and moving the actuating member in a second direction causes the movable member to move laterally away from the bicycle; and
a power storing mechanism disposed in a first power transmission path and in a different second power transmission path between the actuating member and the movable member for storing forces directed from the actuating member toward the movable member in a first force direction along the first power transmission path and from the actuating member toward the movable member in a second force direction along the second power transmission path, wherein the first force direction is different from the second force direction.
1 Assignment
0 Petitions
Accused Products
Abstract
A rear derailleur for a bicycle includes a base member for attaching the rear derailleur to the bicycle, a movable member for supporting a chain guide, and a linkage mechanism coupling the base member to the movable member so that the movable member is capable of movement relative to the base member. An electrically operated actuating member is operatively coupled to the linkage mechanism, wherein moving the actuating member in a first direction causes the movable member to move laterally toward a rear wheel of the bicycle, and moving the actuating member in a second direction causes the movable member to move laterally away from the rear wheel of the bicycle. A power storing mechanism is disposed in a power transmission path between the actuating member and the movable member for storing relative forces applied between the actuating member and the movable member.
61 Citations
23 Claims
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1. A derailleur for a bicycle comprising:
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a base member for attaching the derailleur to the bicycle; a movable member for supporting a chain guide; a linkage mechanism coupling the base member to the movable member so that the movable member is capable of movement relative to the base member; an electrically operated actuating member operatively coupled to the linkage mechanism, wherein moving the actuating member in a first direction causes the movable member to move laterally toward the bicycle and moving the actuating member in a second direction causes the movable member to move laterally away from the bicycle; and a power storing mechanism disposed in a first power transmission path and in a different second power transmission path between the actuating member and the movable member for storing forces directed from the actuating member toward the movable member in a first force direction along the first power transmission path and from the actuating member toward the movable member in a second force direction along the second power transmission path, wherein the first force direction is different from the second force direction. - View Dependent Claims (2, 3, 4, 5)
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6. A derailleur for a bicycle comprising:
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a base member for attaching the derailleur to the bicycle; a movable member for supporting a chain guide; a linkage mechanism coupling the base member to the movable member so that the movable member is capable of movement relative to the base member; an electrically operated actuating member operatively coupled to the linkage mechanism, wherein moving the actuating member in a first direction causes the movable member to move laterally toward the bicycle and moving the actuating member in a second direction causes the movable member to move laterally away from the bicycle; and a power storing mechanism disposed in a first power transmission path and in a different second power transmission path between the actuating member and the movable member for storing relative forces applied between the actuating member and the movable member, wherein the power storing mechanism comprises; a first biasing element disposed in the first power transmission path between the actuating member and the movable member for storing relative forces applied between the actuating member and the movable member; and a second biasing element disposed in the second power transmission path between the actuating member and the movable member for storing relative forces applied between the actuating member and the movable member. - View Dependent Claims (7)
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8. A derailleur for a bicycle comprising:
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a base member for attaching the derailleur to the bicycle; a movable member for supporting a chain guide; a linkage mechanism coupling the base member to the movable member so that the movable member is capable of movement relative to the base member; wherein the linkage mechanism comprises a link member having a first end rotatably coupled to one of the base member and the movable member and a second end coupled to the other one of the base member and the movable member; an electrically operated actuating member operatively coupled to the linkage mechanism, wherein moving the actuating member in a first direction causes the movable member to move laterally toward the bicycle and moving the actuating member in a second direction causes the movable member to move laterally away from the bicycle; and a power storing mechanism disposed in a first power transmission path and in a different second power transmission path between the actuating member and the movable member for storing relative forces applied between the actuating member and the movable member, wherein the power storing mechanism comprises; a first biasing element disposed in the first power transmission path between the actuating member and the movable member for storing relative forces applied between the actuating member and the movable member; and a second biasing element disposed in the second power transmission path between the actuating member and the movable member for storing relative forces applied between the actuating member and the movable member. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A derailleur for a bicycle comprising:
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a base member for attaching the derailleur to the bicycle; a movable member for supporting a chain guide; a linkage mechanism coupling the base member to the movable member so that the movable member is capable of movement relative to the base member; an electrically operated actuating member operatively coupled to the linkage mechanism, wherein moving the actuating member in a first direction causes the movable member to move laterally toward the bicycle and moving the actuating member in a second direction causes the movable member to move laterally away from the bicycle; and a power storing mechanism disposed in a first power transmission path and in a different second power transmission path between the actuating member and the movable member for storing forces directed from the movable member toward the actuating member in a first force direction and from the movable member toward the actuating member in a second force direction, wherein the first force direction is different from the second force direction.
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22. A rear derailleur apparatus for a bicycle comprising:
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a base member for attaching the rear derailleur to the bicycle; a movable member for supporting a chain guide; a linkage mechanism coupling the base member to the movable member so that the movable member is capable of movement relative to the base member; an actuating member operatively coupled to the linkage mechanism, wherein moving the actuating member in a first direction causes the movable member to move laterally toward a rear wheel of the bicycle and moving the actuating member in a second direction causes the movable member to move laterally away from the rear wheel of the bicycle; a motor that electrically drives the actuating member in the first direction and the second direction; and a power storing mechanism disposed in a first power transmission path and in a different second power transmission path between the actuating member and the movable member for storing forces directed from the actuating member toward the movable member in a first force direction and from the actuating member toward the movable member in a second force direction, wherein the first force direction is different from the second force direction.
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23. A rear derailleur apparatus for a bicycle comprising:
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a base member for attaching the rear derailleur to the bicycle; a movable member for supporting a chain guide; a linkage mechanism coupling the base member to the movable member so that the movable member is capable of movement relative to the base member; an actuating member operatively coupled to the linkage mechanism, wherein moving the actuating member in a first direction causes the movable member to move laterally toward a rear wheel of the bicycle and moving the actuating member in a second direction causes the movable member to move laterally away from the rear wheel of the bicycle; a motor that electrically drives the actuating member in the first direction and the second direction; and a power storing mechanism disposed in a first power transmission path and in a different second power transmission path between the actuating member and the movable member for storing forces directed from the movable member toward the actuating member in a first force direction and from the movable member toward the actuating member in a second force direction, wherein the first force direction is different from the second force direction.
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Specification