Bicycle component, bicycle sprocket, and bicycle composite sprocket
A bicycle component comprises a base member and a first alumite layer. The base member is made of an aluminum alloy. The first alumite layer is provided on the base member. The first alumite layer has a thickness that is equal to or larger than 1.0 μm.
1. A bicycle component comprising:
a base member made of an aluminum alloy, the base member having a first area and a second area different from the first area;
a first alumite layer provided on the base member; and
a non-metallic member provided on the first alumite layer,
wherein the first alumite layer has a thickness that is equal to or larger than 2.5 μm,
wherein the first alumite layer is provided on the base member in a first area and the second area is free from the first alumite layer, and
wherein the non-metallic member has electrical conductivity.
2. The bicycle component according to claim 1 , wherein
the thickness of the first alumite layer is equal to or larger than 5.0 μm.
3. The bicycle component according to claim 1 , wherein
the thickness of the first alumite layer is equal to or larger than 10.0 μm.
4. The bicycle component according to claim 1 , wherein
the non-metallic member is made of a carbon fiber reinforced plastic.
5. The bicycle component according to claim 1 , wherein
the non-metallic member is made of conductive resin.
6. The bicycle component according to claim 1 , further comprising:
a second alumite layer provided on the base member.
7. The bicycle component according to claim 6 , further comprising:
dye compound fixed to the second alumite layer.
8. A bicycle sprocket comprising:
the bicycle component according to claim 1 .
9. The bicycle component according to claim 1 , wherein
the non-metallic member includes resin; and
the non-metallic member is attached to the base member via the first alumite layer by an integral molding process.
10. The bicycle component according to claim 4 , wherein
the non-metallic member includes resin; and
the non-metallic member is attached to the base member via the first alumite layer by a thermal compression bonding process.
11. The bicycle component according to claim 6 , wherein
the first alumite layer is provided on the base member in the first area; and
the second alumite layer provided on the base member in the second area different from the first area.
12. The bicycle component according to claim 11 , wherein
the first alumite layer is not provided on the base member in the second area; and
the second alumite layer is not provided on the base member in the first area.
13. The bicycle component according to claim 1 , further comprising:
a second alumite layer provided in the second area, wherein
the first alumite layer and the second alumite layer both consisting of an anodized aluminum alloy material.
14. The bicycle component according to claim 1 , further comprising:
a second alumite layer provided in the second area, wherein
the first alumite layer is a first anodized aluminum alloy layer, the second alumite layer is a second anodized aluminum alloy layer, and the first anodized aluminum alloy layer having a same composition as the second anodized aluminum alloy layer.
15. A bicycle composite sprocket comprising:
the bicycle component according to claim 1 .
16. A bicycle wheel comprising:
the bicycle component according to claim 1 .
17. A bicycle component comprising:
a base member made of an aluminum alloy, the base member having a first area and a second area different from the first area;
a first alumite layer provided on the base member in the first area and the second area is free from the first alumite layer, the first alumite layer having electrical resistance that is equal to or higher than 10 3 Ω;
a non-metallic member provided on the first alumite layer, the non-metallic member having electrical conductivity; and
a second alumite layer provided on base member in the second area.
18. The bicycle component according to claim 17 , wherein
the electrical resistance of the first alumite layer is equal to or higher than 10 4 Ω.
19. The bicycle component according to claim 17 , wherein
the electrical resistance of the first alumite layer is equal to or higher than 10 5 Ω.
20. The bicycle component according to claim 17 , wherein
the non-metallic member is made of a carbon fiber reinforced plastic.
21. The bicycle component according to claim 17 , wherein
the non-metallic member is made of conductive resin.
22. The bicycle component according to claim 17 , further comprising:
dye compound fixed to the second alumite layer.
23. The bicycle component according to claim 17 , wherein
the non-metallic member has electrical resistance lower than the electrical resistance of the first alumite layer.
24. The bicycle component according to claim 17 , wherein
the non-metallic member includes resin, and
the non-metallic member is attached to the base member via the first alumite layer by an integral molding process.
25. The bicycle component according to claim 17 , wherein
the non-metallic member includes resin, and
the non-metallic member is attached to the base member via the first alumite layer by a thermal compression bonding process.
26. A bicycle sprocket comprising:
the bicycle component according to claim 17 .
27. A bicycle composite sprocket comprising:
the bicycle component according to claim 17 .
28. A bicycle wheel comprising:
the bicycle component according to claim 17 .
29. A bicycle component comprising:
a base member made of an aluminum alloy, the base member having a first area and a second area different from the first area;
a first alumite layer provided on the base member in the first area and the second area is free from the first alumite layer, the first alumite layer having a thickness that is equal to or larger than 1.0 μm;
a non-metallic member provided on the first alumite layer, the non-metallic member having electrical conductivity; and
a second alumite layer provided on the base member in the second area.
30. The bicycle component according to claim 29 , further comprising:
dye compound fixed to the second alumite layer.