Freewheel system for a bicycle hub
US-2024376942-A1 · Nov 14, 2024 · US
US11628685B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11628685-B2 |
| Application number | US-202016832338-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 27, 2020 |
| Priority date | Apr 26, 2019 |
| Publication date | Apr 18, 2023 |
| Grant date | Apr 18, 2023 |
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A human-powered vehicle wheel unit adapted to be attached to a human-powered vehicle hub. The wheel unit includes an accommodation portion and a first engagement portion. The accommodation portion is configured to accommodate at least part of the human-powered vehicle hub. The first engagement portion is provided on the accommodation portion. The first engagement portion is configured to transmit rotation of the human-powered vehicle hub to the accommodation portion through engagement with a second engagement portion provided on a flange projecting from an outer circumferential portion of a hub shell of the human-powered vehicle hub.
Opening claim text (preview).
What is claimed is: 1. A human-powered vehicle wheel unit adapted to be attached to a human-powered vehicle hub, the human-powered vehicle wheel unit comprising: an accommodation portion configured to accommodate at least part of the human-powered vehicle hub; a first engagement portion provided on the accommodation portion, the first engagement portion being configured to transmit rotation of the human-powered vehicle hub to the accommodation portion through engagement with a second engagement portion provided on a flange projecting from an outer circumferential portion of a hub shell of the human-powered vehicle hub; and a plurality of spokes, the accommodation portion further including a plurality of spoke engagement portions engaged with the spokes, the plurality of spokes not being directly coupled to the human-powered vehicle hub. 2. The human-powered vehicle wheel unit according to claim 1 , wherein one of the first engagement portion and the second engagement portion includes a plurality of projections projecting in an axial direction of the human-powered vehicle hub, and the other one of the first engagement portion and the second engagement portion includes a plurality of holes or a plurality of recesses engaged with the projections. 3. The human-powered vehicle wheel unit according to claim 2 , wherein the accommodation portion includes a first portion and a second portion that is attached to the first portion. 4. The human-powered vehicle wheel unit according to claim 3 , wherein the first portion and the second portion are aligned in an axial direction of the human-powered vehicle hub, the first portion includes a first wall configured to contact a first end surface of the human-powered vehicle hub in the axial direction of the human-powered vehicle hub, the second portion includes a second wall configured to contact a second end surface of the human-powered vehicle hub in the axial direction of the human-powered vehicle hub, and the second portion is attached to the first portion in a state in which at least part of the human-powered vehicle hub is accommodated in the accommodation portion so that the accommodation portion restricts movement of the human-powered vehicle hub relative to the accommodation portion in the axial direction. 5. The human-powered vehicle wheel unit according to claim 4 , wherein the projections are provided on each of the first portion and the second portion. 6. The human-powered vehicle wheel unit according to claim 5 , wherein the projections are provided on each of the first wall of the first portion and the second wall of the second portion. 7. The human-powered vehicle wheel unit according to claim 6 , wherein a number of the projections provided on the first wall and a number of the projections provided on the second wall are each included in a range of 10 or greater to 25 or less. 8. The human-powered vehicle wheel unit according to claim 6 , wherein the projections are provided on each of the first wall and the second wall in a circumferential direction of the human-powered vehicle hub. 9. The human-powered vehicle wheel unit according to claim 8 , wherein the projections are provided on the first wall with a phase in a circumferential direction of the wheel unit differing from that of the projections provided on the second wall. 10. The human-powered vehicle wheel unit according to claim 5 , wherein the projections are provided on each of the first wall and the second wall along a circle having a diameter included in a range of 50 millimeters or greater to 300 millimeters or less. 11. The human-powered vehicle wheel unit according to claim 10 , wherein the projections are provided on each of the first wall and the second wall along a circle having a diameter included in a range of 50 millimeters or greater to 120 millimeters or less. 12. The human-powered vehicle wheel unit according to claim 5 , wherein the first wall and the second wall are spaced apart by a distance included in a range of 40 millimeters or greater to 70 millimeters or less. 13. The human-powered vehicle wheel unit according to claim 5 , wherein the first portion further includes a circumferential wall that is continuous with the first wall and surrounds an outer circumferential portion of the human-powered vehicle hub, and the second portion is attached to an end of the circumferential wall on a side opposite to the first wall in the axial direction of the human-powered vehicle hub. 14. The human-powered vehicle wheel unit according to claim 13 , wherein the projections are spaced apart from the circumferential wall. 15. The human-powered vehicle wheel unit according to claim 13 , wherein the circumferential wall includes a large diameter portion having an inner diameter defining a first inner diameter and a small diameter portion having an inner diameter defining a second inner diameter that is smaller than the first inner diameter. 16. The human-powered vehicle wheel unit according to claim 5 , wherein the second portion is configured to be separable into a first segment and a second segment. 17. The human-powered vehicle wheel unit according to claim 5 , further comprising one or more attaching members that attach the first portion and the second portion, wherein a number of the one or more attaching members is less than a number of the projections. 18. The human-powered vehicle wheel unit according to claim 17 , wherein the attaching members are provided on the accommodation portion outward from the first engagement portion with respect to a radial direction of the human-powered vehicle hub. 19. The human-powered vehicle wheel unit according to claim 17 , wherein the attaching members are less in number than the spoke engagement portions. 20. The human-powered vehicle wheel unit according to claim 2 , wherein the projections are a plurality of pin members extending in the axial direction of the human-powered vehicle hub. 21. The human-powered vehicle wheel unit according to claim 20 , wherein the pin members each have a diameter of 1 millimeter or greater and 5 millimeters or less. 22. The human-powered vehicle wheel unit according to claim 20 , wherein the pin members each have an axial length of 1 millimeter or greater and 20 millimeters or less. 23. The human-powered vehicle wheel unit according to claim 20 , wherein the pin members are formed integrally with the accommodation portion. 24. The human-powered vehicle wheel unit according to claim 2 wherein the spoke engagement portions are equal in number to the projections. 25. The human-powered vehicle wheel unit according to claim 1 , wherein the accommodation portion includes a first portion and a second portion attached to the first portion, the first portion and the second portion are aligned in the axial direction of the human-powered vehicle hub, the first portion includes a first wall configured to contact a first end surface of the human-powered vehicle hub in the axial direction of the human-powered vehicle hub, the second portion includes a second wall configured to contact a second end surface of the human-powered vehicle hub in the axial direction of the human-powered vehicle hub, the second portion is attached to the first portion in a state in which at least part of the human-powered vehicle hub is to be accommodated in the accommodation portion so that
the element being a brake disc · CPC title
of bicycle wheels (bicycle rims characterised by means for attaching spokes B60B21/062) · CPC title
Attaching spokes to hub · CPC title
specially adapted for bicycles · CPC title
the wheel rim being engaged · CPC title
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