| 摘要 |
A speed control device is provided for operating a bicycle derailleur via a control wire. The device includes a fixing member, an operating member supported rotatably relative to the fixing member and including a plurality of engaging portions and a passive portion, and an operating lever supported rotatably relative to the fixing member and including a transmitting portion engageable with the passive portion of the operating member to transmit an operating force supplied to the operating lever to the operating member. The operating member has one end of the control wire secured thereto. A lever spring biases the operating lever in a predetermined rotation direction, and a retaining pawl is pivoted to the fixing member and is selectively engageable with the engaging portions of the operating member. A pawl spring biases the retaining pawl in a direction of engagement with the engaging portions. A pawl control means controls the retaining pawl to selectively engage and disengage from the respective engaging portions. |
