Chainring
First Claim
Patent Images
1. A chainring for a chainring arrangement for a bicycle, the chainring comprising:
- a first chainring segment comprising a first plurality of teeth along a first outer circumference and configured to rotate about a rotational axis, the first chainring segment having a first front end and a first rear end in a circumferential direction; and
a second chainring segment comprising a second plurality of teeth along a second outer circumference and configured to be rotatable about the rotational axis, the second chainring segment having a second front end and a second rear end in the circumferential direction;
wherein;
the first front end of the first chainring segment and the second rear end of the second chainring segment are configured to be movably connected such that the first chainring segment and the second chainring segment are displaceable relative to one another in an axial direction of the rotational axis, andwherein the first plurality of teeth and the second plurality of teeth form a third plurality of teeth along the outer circumference of the first and second chain ring segments for engaging in a drive chain.
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Abstract
A chainring includes a first chainring segment and a second chainring segment for a chainring arrangement of a bicycle. Further provided is a chainring arrangement and a drive arrangement for a bicycle with at least one chainring. The segmented chainring arrangement is particularly suitable for bicycles with only one front chainring.
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Citations
21 Claims
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1. A chainring for a chainring arrangement for a bicycle, the chainring comprising:
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a first chainring segment comprising a first plurality of teeth along a first outer circumference and configured to rotate about a rotational axis, the first chainring segment having a first front end and a first rear end in a circumferential direction; and a second chainring segment comprising a second plurality of teeth along a second outer circumference and configured to be rotatable about the rotational axis, the second chainring segment having a second front end and a second rear end in the circumferential direction; wherein; the first front end of the first chainring segment and the second rear end of the second chainring segment are configured to be movably connected such that the first chainring segment and the second chainring segment are displaceable relative to one another in an axial direction of the rotational axis, and wherein the first plurality of teeth and the second plurality of teeth form a third plurality of teeth along the outer circumference of the first and second chain ring segments for engaging in a drive chain. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A crankset for a bicycle including a chainring arrangement, the chainring arrangement comprising:
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a first chainring segment comprising a first plurality of teeth along a first outer circumference and configured to rotate about a rotational axis; a second chainring segment comprising a second plurality of teeth along a second outer circumference and configured to be rotatable about the rotational axis; wherein; the first chainring segment further comprising a first front end and a first rear end in a circumferential direction, the second chainring segment further comprising a second front end and a second rear end in the circumferential direction, and the first front end of the first chainring segment and the second rear end of the second chainring segment are configured to be movably connected such that the first chainring segment and the second chainring segment are displaceable relative to one another in an axial direction of the rotational axis; and wherein the crankset further comprises a carrier configured to be rotatably fastened about the rotational axis and for connecting the chainring to a crank in a torque-transmitting manner, and wherein the chainring is mounted on the carrier so as to be movable in order to enable a movement of the chainring relative to the carrier in the axial direction of the rotational axis. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A drive arrangement for a bicycle, the drive arrangement comprising:
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a first chainring segment comprising a first plurality of teeth along a first outer circumference and configured to rotate about a rotational axis; a second chainring segment comprising a second plurality of teeth along a second outer circumference and configured to be rotatable about the rotational axis;
wherein;the first chainring segment further comprises a first front end and a first rear end in a circumferential direction, the second chainring segment further comprises a second front end and a second rear end in the circumferential direction, and the first front end of the first chainring segment and the second rear end of the second chainring segment are configured to be movably connected such that the first chainring segment and the second chainring segment are displaceable relative to one another in an axial direction of the rotational axis; and a multiple sprocket arrangement for a rear wheel hub; a drive chain for engaging a chainring of the chainring arrangement and a sprocket of the multiple sprocket arrangement and for transmitting a driving force from the chainring arrangement to the multiple sprocket arrangement; and a rear derailleur for positioning the drive chain on one of the sprockets of the multiple sprocket arrangement; wherein the chainring of the chainring arrangement is configured to align with the position of the drive chain on the multiple sprocket arrangement along the rotational axis. - View Dependent Claims (20, 21)
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Specification