Lane changing toy car with unidirectional clutch and positive steering
Differential gear drive Patent #: 4231183
ApplicationNo. 06/400321 filed on 07/21/1982
US Classes:104/304, Of steerable car446/455, Via conductor adjacent to vehicle path446/460, Steering vehicle463/63Having means to alter lateral position of object (e.g., steerable car, lane changer, etc.)
ExaminersPrimary: Oechsle, Anton O.
Attorney, Agent or Firm
International ClassesA63H 18/00 (20060101)
A63H 18/12 (20060101)
Foreign Application Priority Data1981-07-27 GB
AbstractA toy racing car for use on a slotless car racing track has to continue to be driven in the forward direction when the polarity of the driving current is reversed, the reversal causing a change in the direction of steering of the car so that it can change from one lane to another. Such cars need to have a simple and reliable drive system. This drive comprises a drive pinion rotated by the motor, a slide mounted transversely of the axis of rotation of the drive pinion and slidable between limit positions in that transverse direction relatively to the axis of rotation of the drive pinion, a tooth upstanding from the slide and capable of engagement with the drive pinion for moving the slide from one limit position to the other according to the direction of rotation of the pinion, a pair of crown gears slidable longitudinally of the axis of rotation of the drive wheels and parallel to the direction of movement of the slide, flanges forming part of the crown gears which project into respective recesses in the slide, whereby movement of the slide from one limit position to the other moves the pinions along the axle, so that in one limit position of the slide the output pinion meshes with one crown gear to drive the car in the forward direction and when the slide is moved to the other limit position upon reversal of the direction of rotation of the drive pinion, the other crown gear meshes with the drive pinion to continue to drive the car in the forward direction despite the change in direction of rotation of the motor.