GB1395371A - Toy vehicle - Google Patents

Abstract

1395371 Toy vehicles GAMA GEORG ADAM MANGOLD 26 July 1972 [24 Sept 1971 31 Dec 1971] 34860/72 Heading A6S The ultrasonic remote control system of a toy vehicle such as a toy racing car is prevented from inadvertant operation by the noise emanating from the vehicle itself by including in its drive means parts made of ultrasonic wave absorbent material and by at least partly enclosing the drive means to prevent the emission of sound to the outside of the vehicle. As shown, a toy racing car is controlled by ultrasonic vibrations from an external controller (not further described), picked up by a microphone M mounted within the head of a simulated driver, to actuate an electronic control device 4 (also not further described) supported within the car body upon a layer 11 of foamed material. The central box part 3 of the car body housing the electronic control device 4 also houses batteries 6, and is insulated fore and aft against sound transmission by layers of foamed material 12, 13. The central box part 3 is closed at the top by the car superstructure A. One electric motor 29 subservient to the electronic control device 4 drives through a worm and worm wheel 28, &c the gear train shown to a segmental toothed portion 21 formed on the track rod 18 to turn the car front wheels 14, 15 and steer the car: in the gear train, gears 23, 25 and 27 are made from sound-absorbing synthetic material. Another electric motor 43 drives through a gear train 42, &c to the car rear axle 36 upon which one wheel 17 is fast and the other wheel 16 is journalled: in his gear train, the gears 37, 39, 40, 41 are made of a sound-absorbing synthetic material. The tyres of the ground-engaging wheels 14, &c are relatively thin walled and hollow, so that they act like pneumatic tyres to absorb shocks. An on-off switch 55 accessible from below the car activates the motors 29, 43, &c. The microphone M rests in a covering of foamed material 52 within a simulated crash helmet 50, which is detachable and has axial slits 51 allowing controlling ultrasonic vibrations to enter. The car superstructure A, which is detachable, may also have holes to admit sound. The microphone M may be mounted at the inner end of a sound-collecting horn.