| 摘要 |
A toy vehicle (10, 10') has a chassis (50), at least a first drive wheel (14 0) rotatably attached to the chassis and at least a first link (270) having a first end (271) pivotally coupled with the chassis. At least a first non- driven wheel (320) is operably coupled with the second opposing end of the first link. The first link has two operative positions: a first, fully- retracted operating configuration (20, 20') in which the first link is wrapp ed at least partially around the chassis crossing the drive wheel axis of rotation and a second, extended operating configuration (30, 30) in which th e first link is pivoted away and extended from the chassis. A second link (210 ) can be pivotally coupled between and with the chassis and first link. Forces acting on the toy vehicle resulting from driving the first drive wheel can cause each link to pivot with respect to the chassis.
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