| 发明名称 | Bicycle sprocket | ||
| 摘要 | A bicycle sprocket comprises a first sprocket member, a projection, and a bump portion. The first sprocket member is rotatable about a rotational center axis and configured to engage with a bicycle chain. The projection is provided to the first sprocket member and is configured to guide the bicycle chain to engage with the first sprocket member in a first chain-phase state where the bicycle chain is shifted from a second sprocket member to the first sprocket member. The bump portion is provided to the first sprocket member and is configured to guide the bicycle chain away from the first sprocket member in an axial direction parallel to the rotational center axis in a second chain-phase state that is different from the first chain phase state. | ||
| 申请公布号 | US9457870(B2) | 申请公布日期 | 2016.10.04 |
| 申请号 | US201414163070 | 申请日期 | 2014.01.24 |
| 申请人 | SHIMANO INC. | 发明人 | Sugimoto Akinobu |
| 分类号 | B62M9/10 | 主分类号 | B62M9/10 |
| 代理机构 | Mori & Ward, LLP | 代理人 | Mori & Ward, LLP |
| 主权项 | 1. A bicycle sprocket comprising: a first sprocket member rotatable about a rotational center axis and configured to engage with a bicycle chain; a projection provided to the first sprocket member and configured to guide the bicycle chain to engage with the first sprocket member in a first chain-phase state where the bicycle chain is shifted from a second sprocket member to the first sprocket member; and a bump portion provided to the first sprocket member and configured to guide the bicycle chain away from the first sprocket member in an axial direction parallel to the rotational center axis in a second chain-phase state that is different from the first chain phase state, a distance between the projection and the bump portion being equal to or shorter than a maximum longitudinal length of an outer link plate of the bicycle chain. | ||
| 地址 | Sakai JP | ||