US Patent 7563151 Toy vehicle with big wheel

A toy vehicle includes a driven wheel, a drive assembly including a drive motor, and a steering assembly including a first steering motor and first and second steering arms. The drive motor is coupled to the driven wheel. The first and second steering arms are coupled to the steering motor. The drive motor drives rotation of the drive assembly relative to the driven wheel, and the steering motor drives rotation of the first and second steering arms relative to the drive assembly. Preferably, a second steering motor is provided, and rotation of the first and second steering arms may be independently controlled.