Patent ID: 6345678
Filing Date: 2002-02-12
Classification: B62K

Abstract:
A scooter comprises:a main frame, a first rear wheel, a second rear wheel, and a rear wheel drive mechanism, the rear wheel drive mechanism having a rechargeable battery set disposed on a bottom of the main frame, an electric motor disposed on a rear portion of the main frame, a brake device, a first protective casing, a worm wheel, and a second protective casing, a first lower lug and a second lower lug disposed on a rear end of the main frame, an auxiliary bearing disposed on the brake device, the first rear wheel having a main bearing, the electric motor having a drive shaft and a worm surrounding the drive shaft, the worm wheel having a first pivot shaft passing through the first protective casing, the first lower lug, a one-way bearing, the brake device, the auxiliary bearing, the main bearing and the first rear wheel, and a second pivot shaft passing through the second protective casing, the second lower lug and the second rear wheel, the worm engaging with the worm wheel, and a plurality of screws fastening the first protective casing and the second protective casing on the electric motor.