The invention relates to a front derailleur of a bicycle, which comprises a connecting rod group assembly which is swingably arranged on a base by taking a pivot point as a rotation center and comprises a cable attachment part which comprises an arc curved surface on which a control cable leans, the arc curved surface defines a cable tangent point tangent to the control cable and a cable attaching section attached to the control cable, the arc curved surface comprises a first side portion, the cable attaching section is located between the cable tangent point and a second side portion of the arc curved surface, a first radius is defined between the cable tangent point and the pivot point, and a second radius is defined between the second side portion and the first radius. A second radius is defined between any cable joint point of the cable attaching section and the pivot point.
本发明关于一种自行车前拨链器,包括:一连杆组总成,以一枢设点为一转动中心而可摆动地设于一基座,包括一缆线附接部,该缆线附接部包括一供一控制缆线靠置于上的弧曲面,该弧曲面定义一跟该控制缆线相切的缆线相切点及一供与该控制缆线贴置的缆线贴置段,该弧曲面包括一第一侧部,该缆线贴置段位于该缆线相切点至该弧曲面的一第二侧部之间,该缆线相切点与该枢设点之间定义一第一半径,该缆线贴置段的任一缆线接合点与该枢设点之间定义一第二半径。
Bicycle front derailleur
自行车前拨链器
2023-02-03
Patent
Elektronische Ressource
Chinesisch
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |