| 摘要 |
A toy vehicle to be ridden by a child has a body to be straddled by the rider, a pair of freely rotatable rear wheels, and a steerable unitary drive assembly that comprises a frame turnably mounted at the front of the body, a single drive wheel rotatably mounted within the frame and driven through reduction gearing by an electric motor also mounted within the frame and powered by batteries preferably held in casings mounted at the opposite sides of the turnable frame, and a pair of freely rotatable outrigger wheels mounted at opposite sides of the frame, preferably on fixed axles projecting from bow members of the frame that embrace the battery-holding casings, and which are normally spaced from the supporting surface so as to engage the latter only to prevent toppling of the vehicle, as when making a sharp turn.
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