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Toy vehicle having variable drive

  • US 4,540,380 A
  • Filed: 03/13/1984
  • Issued: 09/10/1985
  • Est. Priority Date: 03/13/1984
  • Status: Expired due to Fees
First Claim
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1. A miniature toy vehicle comprising a chassis, a first axle rotably mounted to said chassis, a first pair of wheels installed on said first axle, a second axle rotably mounted to said chassis, a second pair of wheels installed on said second axle, a motor means mounted to said chassis, a transmission means mounted to said chassis and drivingly connected to said motor means and an activating means mounted to said chassis, said transmission comprising a first low speed gear rotably mounted on said first axle, a first clutch means, mounted on said first axle and selectively engaging said first low speed gear with said first axle, a second low speed gear rotably mounted on said second axle, a drive gear installed on said second axle, a second clutch means mounted on said second axle and selectively engaging said second low speed gear with said drive gear, a first spur gear drivingly engaged with said motor means, a first worm co-axially mounted with said first spur gear and drivingly connected to said first low speed gear, a second spur gear drivingly engaged with said motor means, a second worm co-axially mounted with said second spur gear and drivingly engaged with said second low speed gear, an intermediate gear selectively engaged with said second low speed gear, a high speed gear interconnected with said intermediate gear and continuously engaged with said drive gear, and shifting means connected to said first and second low speed gears and adapted to selectively engage and disengage said first and second clutch means;

  • said transmission having a first configuration wherein said shifting means is positioned to cause said first clutch means and said second clutch means to be engaged for four-wheel drive operation; and

    a second configuration wherein said shifting means is positioned to cause said first clutch means to be disengaged allowing said first pair of wheels to free-wheel and to cause said second clutch means to be disengaged while urging said second low speed gear into engagement with said intermediate gear to drive said second pair of wheels at high speed.

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