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Claim 1

IN A RACE TRACK OR SIMILAR TOY, ROADBED SIMULATING STRUCTURE FOR CAUSING A SELF PROPELLED MODEL VEHICLE TO BE CATAPULTED BY ITS OWN MOMEMTUM ACROSS A GAP IN THE ROADBED COMPRISING, A COURSE OF MODEL ROADBED INTERRUPTED BY A GAP THEREIN AND INCLUDING AN UP-RAMP SECTION OF SAID ROADBED HAVING A TERMINAL EDGE BORDERING ONE SIDE OF SAID AP AND A RELATIVELY LOWER SECTION OF SAID ROADBED SEPARATED FROM SAID UP-RAMP SECTION BY SAID GAP AND BORDERING THE SIDE OF SAID GAP OPPOSITE SAID UP-RAMP TERMINAL EDGE, SAID UP-RAMP SECTION HAVING A GROOVE ADAPTED TO BE TRACKED BY A MODEL VEHICLE WHEREBY TO ESTABLISH A LANE OF TRAVEL FOR THE VEHICLE LEADING TO SAID TERMINAL EDGE, SAID GROOVE IN SAID UP-RAMP SECTION BEING DEFLECTED OBLIQUELY TO THE COURS OF SAID ROADBED AND OPENING INTO SAID GAP WHEREBY TO PERMIT THE VEHICLE TO LEAVE SAID UP-RAMP TERMINAL EDGE AND BE TRAJECTED BY ITS OWN MOMENTUM IN AN OBLIQUE DIRECTION ACROSS SAID GAP FROM ONE SIDE OF SAID UP-RAMP SECTION TO THE OPPOSITE SIDE OF SAID LOWER ROADBED SECTION, AND GUARD MEANS INCLUDING WALLS UPSTANDING FROM SAID LOWER ROADBED SECTION SPACED APART CROSSWISE THE ROADBED TO FORM A VEHICLE GUIDING PASSAGEWAY ON SAID LOWER ROADBED SECTION POSITIONED TO BE RECEPTIVE TO A VEHICLE CATAPULTED THEREON IN SAID OBLIQUE DIRECTION FROM SAID UP-RAMP SECTION OF THE ROADBED AND OPERATIVE TO RECTIFY THE OBLIQUE TRAVEL OF SAID VEHICLE INTO ACCORDANCE WITH THE COURSE OF SAID ROADBED.