초록 ▼

A scooter has a main frame, two rear bars, a rear wheel, and a rear wheel drive mechanism. The rear bars are disposed on a rear end of the main frame. The rear wheel drive mechanism has a rechargeable battery set, an electric motor, a brake device, a first protective casing, a worm wheel, and a seco

A scooter has a main frame, two rear bars, a rear wheel, and a rear wheel drive mechanism. The rear bars are disposed on a rear end of the main frame. The rear wheel drive mechanism has a rechargeable battery set, an electric motor, a brake device, a first protective casing, a worm wheel, and a second protective casing. The brake device, the rear wheel, the first protective casing, the worm wheel, and the second protective casing are disposed between the rear bars. The electric motor has a drive shaft and a worm. The worm wheel has a pivot shaft passing through the first protective casing, a one-way bearing, the rear wheel, a main bearing, an auxiliary bearing, and the pivot shaft inserted in the brake device. The worm engages with the worm wheel.

대표청구항 ▼

1. 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 f

1. 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.