Speed control device for derailleur type bicycle, has catching member selectively engaged between two adjacent teeth of toothed section, and engaging section selectively engaged with pawl to urge pawl away from toothed member

摘要

The device has a pawl (24) selectively engaged between two adjacent teeth of a set of teeth (3322) formed on a toothed member (33). An operation mechanism (40) includes a catching member (43) that is selectively engaged between two adjacent teeth of a toothed section (332) formed on another toothed member (32). An engaging section (441) is selectively engaged between two adjacent teeth of another set of tooth (3321) of the toothed section. Another engaging section (442) is selectively engaged with the pawl to urge the pawl away from the latter toothed member.