| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve the problem that it is difficult to maintain a lock function due to secular deterioration such as abrasion since operation at parking is complicated though a rocking lock mechanism by a pin is conventionally provided when eliminating a spring, because it is difficult to ride a rocking type tricycle more than a bicycle due to a difference in operation feeling, and also because the spring is normally arranged for restoring a front frame to a neutral mode. <P>SOLUTION: A brake mechanism fixable in a free position is arranged at a rocking shaft for rockingly connecting the front frame and a rear frame, and rocking is locked by the brake mechanism, to thereby eliminate complication of searching a lockable position by rocking the front frame at parking, and to eliminate deterioration in the lock function caused by secular deterioration. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
