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US 12,722,421 B2Granted
Hub assembly for human powered vehicle
AssigneeShimano Inc.
InventorKosuke Kinashi
Life of this patent
Estimating the term…
Abstract
A hub assembly comprises a hub axle, a hub shell, a sprocket support body, a first bearing unit, a second bearing unit, and a sleeve. The sleeve includes a first abutment portion and a second abutment portion. The first abutment portion abuts the first inner race. The second abutment portion abuts the second inner race in a radial direction.
Claims18
A hub assembly for a human powered vehicle, the hub assembly comprising:
- a hub axle having a center axis defining an axial direction, a radial direction and a circumferential direction;
- a hub shell rotatably mounted on the hub axle to rotate about the center axis;
- a sprocket support body rotatably mounted on the hub axle to rotate about the center axis, the sprocket support body being configured to support at least one sprocket;
- a first bearing unit disposed between the hub axle and the hub shell in the radial direction;
- a second bearing unit disposed between the hub axle and the sprocket support body in the radial direction;
- a sleeve mounted on the hub axle and extending in the axial direction, the sleeve being contactable with the hub axle in the radial direction;
- the first bearing unit including:
- a first inner race coupled to the hub axle;
- a first outer race coupled to the hub shell;
- and
- at least two first rolling members disposed between the first inner race and the first outer race in the radial direction;
- the second bearing unit including:
- a second inner race coupled to the hub axle;
- a second outer race coupled to the sprocket support body;
- and
- at least two second rolling members disposed between the second inner race and the second outer race in the radial direction;
- the sleeve including:
- a first abutment portion abutting the first inner race;
- and
- a second abutment portion abutting the second inner race in the radial direction,
- the first abutment portion being at least partially positioned radially outwardly from the second abutment portion in the radial direction, and
- the sleeve being free of radial abutment with the first inner race.
19 more elements
A hub assembly for a human powered vehicle, the hub assembly comprising:
- a hub axle having a center axis defining an axial direction, a radial direction and a circumferential direction;
- a hub shell rotatably mounted on the hub axle to rotate about the center axis;
- a sprocket support body rotatably mounted on the hub axle to rotate about the center axis, the sprocket support body being configured to support at least one sprocket;
- an axially-outward bearing unit disposed between the hub axle and the sprocket support body in the radial direction;
- an axially-inward bearing unit disposed between the hub axle and the sprocket support body in the radial direction, the axially-inward bearing unit being disposed closer to an axial center plane of the hub assembly in the axial direction than the axially-outward bearing unit;
- a sleeve mounted on the hub axle and extending in the axial direction, the sleeve being contactable with the hub axle in the radial direction;
- and
- a one-way clutch structure disposed radially outwardly from the axially-inward bearing unit in the radial direction;
- the axially-outward bearing unit including:
- an axially-outward inner race coupled to the hub axle;
- an axially-outward outer race coupled to the sprocket support body;
- and
- at least two axially-outward rolling members disposed between the axially-outward inner race and the axially-outward outer race in the radial direction;
- the axially-inward bearing unit including:
- an axially-inward inner race coupled to the hub axle;
- an axially-inward outer race coupled to the sprocket support body;
- and
- at least two axially-inward rolling members disposed between the axially-inward inner race and the axially-inward outer race in the radial direction;
- the sleeve including:
- an axial abutment portion abutting the axially-outward inner race in the axial direction;
- and
- a radial abutment portion abutting the axially-inward inner race in the radial direction;
- the sleeve being free of radial abutment with the axially-outward inner race with respect to the center axis;
- and
- the one-way clutch structure at least partially overlaps the axially-inward bearing unit in the radial direction.
22 more elements
A hub assembly for a human powered vehicle, the hub assembly comprising:
- a hub axle having a center axis defining an axial direction, a radial direction and a circumferential direction;
- a hub shell rotatably mounted on the hub axle to rotate about the center axis;
- a sprocket support body rotatably mounted on the hub axle to rotate about the center axis, the sprocket support body being configured to support at least one sprocket;
- an axially-outward bearing unit disposed between the hub axle and the sprocket support body in the radial direction;
- an axially-inward bearing unit disposed between the hub axle and the sprocket support body in the radial direction, the axially-inward bearing unit being disposed closer to an axial center plane of the hub assembly in the axial direction than the axially-outward bearing unit;
- a sleeve mounted on the hub axle and extending in the axial direction, the sleeve being contactable with the hub axle in the radial direction;
- and
- a one-way clutch structure disposed radially outwardly from the axially-inward bearing unit in the radial direction;
- the axially-outward bearing unit including:
- an axially-outward inner race coupled to the hub axle;
- an axially-outward outer race coupled to the sprocket support body;
- and
- at least two axially-outward rolling members disposed between the axially-outward inner race and the axially-outward outer race in the radial direction;
- the axially-inward bearing unit including:
- an axially-inward inner race coupled to the hub axle;
- an axially-inward outer race coupled to the sprocket support body;
- and
- at least two axially-inward rolling members disposed between the axially-inward inner race and the axially-inward outer race in the radial direction;
- the sleeve including:
- an axial abutment portion abutting the axially-outward inner race in the axial direction;
- and
- a radial abutment portion abutting the axially-inward inner race in the radial direction;
- the sleeve being free of radial abutment with the axially-outward inner race with respect to the center axis, wherein
- the one-way clutch structure includes:
- a first ratchet member configured to engage with one of the hub shell and the sprocket support body;
- and
- a second ratchet member configured to engage with the other of the hub shell and the sprocket support body;
- and
- one of the first ratchet member and the second ratchet member is configured to be movable relative to the other of the first ratchet member and the second ratchet member in the axial direction.
26 more elements
A hub assembly for a human powered vehicle, the hub assembly comprising:
- a hub axle having a center axis defining an axial direction, a radial direction and a circumferential direction;
- a hub shell rotatably mounted on the hub axle to rotate about the center axis;
- a sprocket support body rotatably mounted on the hub axle to rotate about the center axis, the sprocket support body being configured to support at least one sprocket;
- an axially-outward bearing unit disposed between the hub axle and the sprocket support body in the radial direction;
- an axially-inward bearing unit disposed between the hub axle and the sprocket support body in the radial direction, the axially-inward bearing unit being disposed closer to an axial center plane of the hub assembly in the axial direction than the axially-outward bearing unit;
- a sleeve mounted on the hub axle and extending in the axial direction, the sleeve being contactable with the hub axle in the radial direction;
- and
- a one-way clutch structure disposed radially outwardly from the axially-inward bearing unit in the radial direction;
- the axially-outward bearing unit including:
- an axially-outward inner race coupled to the hub axle;
- an axially-outward outer race coupled to the sprocket support body;
- and
- at least two axially-outward rolling members disposed between the axially-outward inner race and the axially-outward outer race in the radial direction, and
- the axially-inward bearing unit including:
- an axially-inward inner race coupled to the hub axle;
- an axially-inward outer race coupled to the sprocket support body;
- and
- at least two axially-inward rolling members disposed between the axially-inward inner race and the axially-inward outer race in the radial direction;
- the sleeve including:
- an axial abutment portion abutting the axially-outward inner race in the axial direction;
- and
- a radial abutment portion abutting the axially-inward inner race in the radial direction;
- the sleeve being free of axial abutment with the axially-inward inner race with respect to the center axis;
- and
- the one-way clutch structure at least partially overlaps the axially-inward bearing unit in the radial direction.
22 more elements
A hub assembly for a human powered vehicle, the hub assembly comprising:
- a hub axle having a center axis defining an axial direction, a radial direction and a circumferential direction;
- a hub shell rotatably mounted on the hub axle to rotate about the center axis;
- a sprocket support body rotatably mounted on the hub axle to rotate about the center axis, the sprocket support body being configured to support at least one sprocket;
- an axially-outward bearing unit disposed between the hub axle and the sprocket support body in the radial direction;
- an axially-inward bearing unit disposed between the hub axle and the sprocket support body in the radial direction, the axially-inward bearing unit being disposed closer to an axial center plane of the hub assembly in the axial direction than the axially-outward bearing unit;
- a sleeve mounted on the hub axle and extending in the axial direction, the sleeve being contactable with the hub axle in the radial direction;
- and
- a one-way clutch structure disposed radially outwardly from the axially-inward bearing unit in the radial direction;
- the axially-outward bearing unit including:
- an axially-outward inner race coupled to the hub axle;
- an axially-outward outer race coupled to the sprocket support body;
- and
- at least two axially-outward rolling members disposed between the axially-outward inner race and the axially-outward outer race in the radial direction, and
- the axially-inward bearing unit including:
- an axially-inward inner race coupled to the hub axle;
- an axially-inward outer race coupled to the sprocket support body;
- and
- at least two axially-inward rolling members disposed between the axially-inward inner race and the axially-inward outer race in the radial direction;
- the sleeve including:
- an axial abutment portion abutting the axially-outward inner race in the axial direction;
- and
- a radial abutment portion abutting the axially-inward inner race in the radial direction;
- the sleeve being free of axial abutment with the axially-inward inner race with respect to the center axis, wherein
- the one-way clutch structure includes:
- a first ratchet member configured to engage with one of the hub shell and the sprocket support body;
- and
- a second ratchet member configured to engage with the other of the hub shell and the sprocket support body;
- and
- one of the first ratchet member and the second ratchet member is configured to be movable relative to the other of the first ratchet member and the second ratchet member in the axial direction.
26 more elements
Dependencies are inferred from the claim text.