| 摘要 |
A toy track and a self-driven car such as a locomotive, which runs on the track to a front end thereof and, when it has arrived at the front end, the wheels are switched to drive in reverse and rearward motion of the car is checked so that the track which is supported on rollers begins to advance passing under the car in the same direction. When the rear end of the track has arrived at the car, the wheels are again reversed and the car automatically begins to run along the track again, so that the car and the track may go alternately ahead. The track has a pair of buffer-stops which actuate switches at the front and rear of the car to reverse rotation of wheels, and the car has a retrogression checking means extending through a slot in the track.
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