| 摘要 |
<p>The invention relates to a folding bicycle, comprising a down tube (4) with a back end with a seat tube (7) and a front end with a steering tube (10) housing a stem (9) connected in the upper zone to a handlebar (101) and in the lower zone to a front fork (11), a back fork (2) coupled to the back end of the down tube (4) and a bottom bracket (236), a folding mechanism which allows folding the bicycle (1) about an articulating pin (12), and a locking mechanism for keeping the bicycle in a folded position, where
the bottom bracket (236) is integrated in a lower portion (234) of a connecting part (23) emerging in the lower zone of a front portion (226) of the back fork (22);
the connecting part (23) comprises an upper side (232) with a back portion attached in the lower zone to the front portion (226) of the back fork (22) and with at least one cantilevered axial extension (233) which extends below and is connected to the down tube (4) in the unfolded position of the bicycle (1);
the axial extension (233) comprises at least one front end (221) articulated in the lower zone to the down tube (4) by means of a transverse shaft (12)
the front portion (226) of the back fork (22) is connected to the back end of the down tube (4) in the unfolded position of the bicycle (1).</p> |
