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US 7,125,354 B2Granted
Bicycle derailleur with a chain guide disposed at an upper portion of a link mechanism
AssigneeShimano Inc.
InventorSatoshi Shahana
Life of this patent
Estimating the term…
Abstract
A bicycle derailleur comprises a base member structured to be mounted to a bicycle frame; a link mechanism having a first portion and a second portion, wherein the first portion of the link mechanism is coupled to the base member, and wherein the second portion of the link mechanism is disposed above the first portion of the link mechanism; and a chain guide coupled to the second portion of the link mechanism so that the chain guide moves relative to the base member to move a chain among a plurality of sprockets.
Claims20
A bicycle derailleur comprising:
- a downwardly extending base member structured to be nonrotatably mounted to a bicycle frame;
- a link base;
- a link mechanism having a first portion and a second portion, wherein the first portion of the link mechanism is coupled to the link base through a first pivot shaft, and wherein the second portion of the link mechanism is disposed above the first portion of the link mechanism;
- and
- a chain guide coupled to the second portion of the link mechanism so that the chain guide moves relative to the base member to move a chain laterally inwardly toward and laterally outwardly away from a plurality of sprockets;
- wherein the link base extends laterally outwardly away from a lower end portion of the base member so that the link base extends laterally outwardly away from the plurality of sprockets when the base member is mounted to the bicycle frame.
3 more elements
A bicycle derailleur comprising:
- a base member structured to be nonrotatably mounted to a bicycle frame to extend downwardly, wherein the base member includes an outer cable sheath stopper;
- a link mechanism having a first portion and a second portion, wherein the first portion of the link mechanism is coupled to the base member;
- a chain guide coupled to the second portion of the link mechanism so that the chain guide moves relative to the base member to move a chain among a plurality of sprockets;
- and
- a cable retaining unit disposed on the link mechanism for retaining an inner cable of a control cable assembly;
- wherein the outer cable sheath stopper is oriented so that the inner cable extends upwardly at a location where the inner cable exits the outer cable sheath stopper when the base member is mounted to the bicycle frame;
- wherein the derailleur is operated by pulling downwardly on the cable retaining unit.
4 more elements
A bicycle derailleur comprising:
- a downwardly extending base member structured to be nonrotatably mounted to a bicycle frame;
- a link base;
- a link mechanism having a first portion and a second portion, wherein the first portion of the link mechanism is coupled to the link base, and wherein the second portion of the link mechanism is disposed above the first portion of the link mechanism;
- and
- a chain guide coupled to the second portion of the link mechanism so that the chain guide moves relative to the base member to move a chain laterally inwardly toward and laterally outwardly away from a plurality of sprockets;
- wherein the link base extends laterally outwardly away from a lower end portion of the base member so that the link base extends laterally outwardly away from the plurality of sprockets when the base member is mounted to the bicycle frame;
- and
- wherein the chain guide supports a lower guide sprocket for rotation around a rotational axis, wherein the rotational axis of the lower guide sprocket is located above a lowermost surface of the base member.
5 more elements
Dependencies are inferred from the claim text.