| 摘要 |
Figure 1 is a phase diagram when a bicycle runs on a flat path. Figure 2 is the phase diagram when the bicycle runs on a downhill road (ramp). Figure 3 is the phase diagram when the bicycle runs on an uphill road (ramp). Figure 4 is a circuit diagram of a hydraulic device installed in the bicycle. The purpose of the present invention is to provide an automatic posture control apparatus of a bicycle saddle preventing the center of gravity from leaning forwards or backwards when a user rides on the bicycle. The present invention includes: a hydraulic cylinder installed in a portion of a structure and a lower side of the saddle; and a control valve installed in a center of the hydraulic cylinder. |
