Granted Patent B2

US 12,564,796 · App. 18/267,090 · Granted Mar 3, 2026

Inventor: Yoon Sunwoo (Seoul, KR)

A63H18/026A63H30/04

Abstract

Claims (22)

1 . A car racing system, comprising:

a lane ( 100 ) configured for car racing;

a first car and a second car identical in structure, each car including:

a car body having a first part ( 210 ) at a front end of the car body, a second part ( 220 ) at a middle portion of the car body, and a third part ( 230 ) at a rear end of the car body;

a first magnet ( 211 ) disposed at the first part of the car body;

a first locking device ( 225 ) coupled to a bottom surface of the car body, the first locking device including a first locking portion ( 226 ); and

a second locking device ( 235 ) movably mounted in the car body, the second locking device including at one end a second magnet ( 239 ) and at an opposite end a second locking portion ( 238 ) that engages the first locking portion ( 226 ) of the first locking device to lock the first locking device; and

a remote controller ( 300 ) for controlling at least one of the first car and the second car,

wherein as the first car approaches the second car from behind such that the first magnet ( 211 ) of the first car is brought into proximity with the second magnet ( 239 ) of the second car, the second magnet ( 239 ) of the second car is magnetically attracted to the first magnet ( 211 ) of the first car, causing the second locking device ( 235 ) of the second car to disengage the second locking portion ( 238 ) from the first locking portion ( 226 ) of the second car's first locking device ( 225 ), thereby releasing the first locking device of the second car and lifting the second car upward off the lane.

2 . The car racing system of claim 1 , wherein:

the first locking device ( 225 ) of each car is coupled to a bottom surface portion of the car body via a spring hinge to permit elastic movement, the first locking device having a first locking portion ( 226 ) engageable with a second locking portion ( 238 ) of the second locking device ( 235 ); and

the second locking device ( 235 ) of each car is disposed in a housing body ( 236 ) defining an internal space and is configured to move along a shaft ( 237 ) within the housing body ( 236 ), the second locking device having the second locking portion ( 238 ) at one end engageable with the first locking portion ( 226 ) of the first locking device and the second magnet ( 239 ) at an opposite end positioned to be attracted by the first magnet ( 211 ).

3 . The car racing system of claim 1 , wherein each of the first car and the second car further includes:

a control unit ( 254 ) configured to process signals from the remote controller ( 300 ) to increase a rotational speed of a motor and to control the race as a whole;

a receiving unit ( 255 ) configured to receive a car driving start signal, a lamp-flashing signal, and a car acceleration signal from the remote controller and to provide the same signals to the control unit;

a motor ( 257 ) operative to drive each car on the lane;

a power supply unit ( 256 ) for supplying power to the control unit and providing additional power to increase the speed of the motor;

a display unit ( 258 ) for displaying a driving state of each car; and

a switch ( 259 ) for setting the driving state of each car that is displayed via the display unit.

4 . The car racing system of claim 1 , wherein the remote controller ( 300 ) includes:

a first switch ( 310 ) configured to set a blinking pattern of a lamp on the remote controller to match a blinking pattern of a lamp on a selected one of the cars, wherein the blinking pattern of either one of the car's lamp is set by the switch ( 259 ) on each car; and

a second switch ( 320 ) configured to be actuated to initiate driving and to accelerate the selected car.

Priority Claims (2)

Continuity (1)

References Cited (42)