| 摘要 |
PROBLEM TO BE SOLVED: To provide a highly stable and safe electric-driven vehicle by that the vertical motion of a pair of right and left suspended auxiliary wheels is reliably fixed. SOLUTION: In the electric-driven vehicle having a pair of right and left auxiliary wheels 10, 10 elastically suspended and vertically movable, a locking plate 14 and a locking caliper 15 vertically moved in association with the auxiliary wheels 10 are provided on the auxiliary wheels 10, respectively. A plurality of engagement holes 14a are formed in the locking plate 14 along the direction of the vertical motion. The locking caliper 15 has one or more engagement projections which are advanced/retracted to/from the locking plate 14 by the operation or the like, engaged with a part of the engagement holes 14a when the projections are advanced thereto, and disengaged from the engagement holes 14a when the projections are retracted therefrom. COPYRIGHT: (C)2010,JPO&INPIT |
