| 摘要 |
<p>A derailleur includes an attachment (10) having a base (11), a number of sprocket wheels (93), a carrier (91) for engaging with a chain (92) and for moving the chain (92) onto the sprocket wheels (93), and a coupler (2) is coupled between the carrier (91) and the base (11) for moving the carrier (91) and the chain (92) in the curved moving stroke. The coupler (2) includes a follower (20) attached to the base (11), a bracket (80) attached to the carrier (91), and a lever (86) coupled between the follower (20) and the bracket (80), a link (70) is attached to the base (11), and a linkage (5) is coupled between the base (11) and the link (70) and the bracket (80).</p> |
