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Self-propellable toy and arrangement for and method of controlling the movement thereof

  • US 4,662,854 A
  • Filed: 07/12/1985
  • Issued: 05/05/1987
  • Est. Priority Date: 07/12/1985
  • Status: Expired due to Fees
First Claim
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1. An arrangement for controlling the movement of a self-propellable, wheeled toy over a travel surface to be traversed, comprising:

  • (a) drive means operatively connected to a pair of drive wheels located at opposite sides of an upright axis which extends generally perpendicularly to the travel surface and operative, in a first operational state, to propel the toy along a forward direction of advancement over the travel surface and, in a second operational state, to spin the toy about the upright axis;

    (b) on-board, forwardly-facing transmitter means on the toy, and operative for forwardly transmitting a transmission signal ahead of the toy;

    (c) on-board, forwardly-facing receiver means on the toy, and operative for detecting a returning portion of the transmission signal reflected off an obstacle located within a predetermined range ahead of the toy;

    (d) control means operatively connected to the receiver means and the drive means, and operative to change the operational states of the latter in response to such detection by the former; and

    (e) mode selector means operatively connected to the control means, and operative for selecting between a first operational mode in which the first operational state is set initially and changed subsequently to the second operational state in response to said detection, and a second operational mode in which the second operational state is set initially and changed subsequently to the first operational state in response to said detection.

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