| 摘要 |
A system is provided for holding two gears in positive mesh. The gears are used in toy vehicles, wherein the first gear is mounted on a drive shaft and the second gear is mounted on the rear axle of the vehicle. A crown and pinion gear are preferably used. The improvement comprises a pair of spaced elements, such as discs, mounted on the axle and spaced apart to receive between them an extension of the drive shaft. The drive shaft extension lying between the spaced apart elements constrains the rear axle from moving laterally and causing the gears to come out of mesh.
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