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US 9,796,450 B2Granted
Bicycle front derailleur
AssigneeShimano Inc.
InventorsAtsuhiro Emura, Kazuya Kuwayama, Kenkichi Inoue
Life of this patent
Estimating the term…
Abstract
A bicycle front derailleur is basically provided with a base member and a movable member. The base member includes a bicycle mounting portion. The movable member is movably supported to the base member between a retracted position and an extended position relative to the base member. The movable member includes a first guide plate having a first inner surface and a second guide plate having a second inner surface. The first and second inner surfaces face each other to form a chain receiving slot therebetween. The second guide plate includes an adjustable guide member that is arranged at the chain receiving slot to move between at least two different positions relative to the second guide plate.
Claims18
A bicycle front derailleur comprising:
- a base member including a bicycle mounting portion;
- and
- a chain guide movably supported to the base member between a retracted position and an extended position relative to the base member, the chain guide including a first guide plate having a first inner surface arranged to move and laterally shift a bicycle chain in a first direction and a second guide plate having a second inner surface arranged to move and laterally shift the bicycle chain in a second direction that is opposite the first direction, the first and second inner surfaces facing each other to form opposite lateral sides of a chain receiving slot therebetween,
- the second guide plate including an adjustable guide member arranged at the chain receiving slot to move between at least two different positions relative to the second guide plate.
1 more element
A bicycle front derailleur comprising:
- a base member including a bicycle mounting portion;
- a chain guide movably supported to the base member between a retracted position and an extended position relative to the base member, the chain guide including a first guide plate having a first inner surface and a second guide plate having a second inner surface, the first and second inner surfaces facing each other to form a chain receiving slot therebetween, the second guide plate including an adjustable guide member arranged at the chain receiving slot to move between at least two different positions relative to the second guide plate;
- and
- an adjustment member movably disposed between the second guide plate and the adjustable guide member such that movement of the adjustment member selectively moves the adjustable guide member relative to the second guide plate.
1 more element
A bicycle front derailleur comprising:
- a base member including a bicycle mounting portion;
- and
- a chain guide movably supported to the base member between a retracted position and an extended position relative to the base member, the chain guide including a first guide plate having a first inner surface and a second guide plate having a second inner surface, the first and second inner surfaces facing each other to form a chain receiving slot therebetween,
- the second guide plate including an adjustable guide member arranged at the chain receiving slot to move between at least two different positions relative to the second guide plate, the adjustable guide member being a resilient plate that is flexed to vary the width of the chain receiving slot.
1 more element
A bicycle front derailleur comprising:
- a base member including a bicycle mounting portion;
- and
- a chain guide movably supported to the base member between a retracted position and an extended position relative to the base member, the chain guide including a first guide plate having a first inner surface arranged to move and laterally shift a bicycle chain in a first direction and a second guide plate having a second inner surface arranged to move and laterally shift the bicycle chain in a second direction that is opposite the first direction, the first and second inner surfaces facing each other to form opposite lateral sides of a chain receiving slot therebetween,
- the second guide plate including an adjustable guide member arranged at the chain receiving slot to move between at least two different positions relative to the second guide plate, and
- the adjustable guide member having an attachment part fixed to the second guide plate and a cantilevered part cantilevered relative to the second inner surface of the second guide plate.
2 more elements
A bicycle front derailleur comprising:
- a base member including a bicycle mounting portion;
- and
- a chain guide movably supported to the base member between a retracted position and an extended position relative to the base member, the chain guide including a first guide plate having a first inner surface and a second guide plate having a second inner surface, the first and second inner surfaces facing each other to form a chain receiving slot therebetween,
- the second guide plate including an adjustable guide member arranged at the chain receiving slot to move between at least two different positions relative to the second guide plate, the adjustable guide member being a resilient plate that is flexed to vary the width of the chain receiving slot, and
- the adjustable guide member having an attachment part fixed to the second guide plate and a cantilevered part cantilevered relative to the second inner surface of the second guide plate.
2 more elements
Dependencies are inferred from the claim text.