| 摘要 |
<p>A movable end heads structure for synchronous braking, comprises a cylinder 50 and an inner moving body 60, wherein end portions of the inner moving body 60 are respectively provided with two active slots 61, 62 and two holes 611,621. The holes 611,621 and the active slots 61,62 of a first end enable brake cables (41,42, Fig 9) and end heads (411, 421, Fig 9) thereof to be disposed therein. The holes 611, 621 and the active slots 61, 62 of a second end portion enable control cables 41,42 and end heads 411,421 thereof to be disposed therein. The end heads 411,421 of the brake cables 41,42 move within the active slots 61,62 of the first end portion, and the end heads 411,421 of the control cables move within the active slots 61,61 of the second end portion to pull any one of the control cables 41, 42. When the two brake cables or both the two control cables are pulled simultaneously, the two brake cables are affected and pulled. When only a single control cable 42 is pulled both brake cables are pulled by the inner moving body 60, while the second, un-pulled, control cable 41 remains stationary and its end head 411 remains within the active slot 61, thereby avoiding any risk of becoming hooked on the outer face of the inner moving body 60. The cylinder 50 may be secured to a bicycle frame tube 40 using a band (80, Fig 5). The Inner moving body 60 may comprise recesses (661, Fig 8) carrying balls (66, Fig 8) for smooth sliding within the cylinder 50. A central bore (65, figure 8) may provide a route for electrical wire (70, fig 6).</p> |
