| 摘要 |
<p>This chassis is characterised in that it comprises a base frame (1) being formed by two frontally converging side members (2) and (3) being at each of their front portions linked in a pin-jointed connection to a front support (5), and two inclined arms (10) and (11) being at each of their lower ends respectively linked in a pin-jointed connection to the front portion of each of said side members (2) and (3), each of the two branches (12) and (13) of the handlebar (14) being slidably fitted onto each of said arms (10) and (11), respectively, the front portion of each of the branches of the handlebar being respectively connected with the rear portion of each of the base side members (2) and (3) by means of two crossed links (15) and (16). The branches (12') and (13') of the handlebar (14) can also be telescopically fitted to the two inclined arms (10) and (11), in which case each of the handlebar branches is pin-jointedly linked to the rear region of each of the side members (2) and (3) by means of a respective strut (26) and (27), said struts being connected with each other with means (28) being fit to lock the unfolded position of the chassis.</p> |
