发明名称 |
BICYCLE BOTTOM BRACKET ASSEMBLY |
摘要 |
A bicycle bottom bracket assembly having a rotational central axis includes a support member, a bearing unit and a radially inward force reducing structure. The support member includes a hanger mounting portion and a bearing mounting portion. The bearing mounting portion is configured to be at least partly positioned within a hanger part of a bicycle frame. The bearing unit includes an outer race, an inner race and at least one roller element disposed between the outer and inner races in a radial direction with respect to the rotational central axis. The outer race is fixed to the bearing mounting portion of the support member. The radially inward force reducing structure reduces a radially inward force being transmitted to the bearing unit. |
申请公布号 |
US2016368562(A1) |
申请公布日期 |
2016.12.22 |
申请号 |
US201514745878 |
申请日期 |
2015.06.22 |
申请人 |
Shimano Inc. |
发明人 |
SHIRAISHI Shingo;FURUYA Takashi;WATARAI Etsuyoshi;ANDO Yoshiaki |
分类号 |
B62M3/00 |
主分类号 |
B62M3/00 |
代理机构 |
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代理人 |
|
主权项 |
1. A bicycle bottom bracket assembly having a rotational central axis, the bicycle bottom bracket comprising:
a support member including a hanger mounting portion and a bearing mounting portion, the bearing mounting portion being configured to be at least partly positioned within a hanger part of a bicycle frame; a bearing unit including an outer race, an inner race and at least one roller element disposed between the outer and inner races in a radial direction with respect to the rotational central axis, the outer race being fixed to the bearing mounting portion of the support member; and a radially inward force reducing structure for reducing a radially inward force being transmitted to the bearing unit, the radially inward force reducing structure including a non-threaded outer circumferential surface of the support member, the non-threaded outer circumferential surface being disposed between first and second threaded outer circumferential surfaces of the support member. |
地址 |
Osaka JP |