| 摘要 |
A seat post having a quill head (4) with a top surface, a lower cradle (8) rotatable with respect to the top surface about an axis (X), and an upper cradle (10), reciprocally coupled for clamping the saddle rails of a bicycle, front and rear fasteners (12, 14) connecting the upper cradle (10) to the quill head (4), and front and rear pivots (16, 18) in which the front and rear fasteners (12, 14) are respectively engaged in order to adjust the rails angle with respect to the quill head (4) wherein the quill head (4) comprises front and rear seats in which the pivots (16, 18) are respectively rotationally engaged, the axes (Y, Z) of the pivots (16, 18) being positioned substantially at a same distance (D) from the axis (X), regardless of rails angle adjustment, the top surface has a convex shape, and the lower cradle (8) comprises a lower concave seat suitable to engage the top surface. |
