US 12,122,441 B2
Electric handcart
Wei Wei An, Dongguan (CN); and Da Zheng Li, Dongguan (CN)
Assigned to TECHTRONIC CORDLESS GP, Anderson, SC (US)
Appl. No. 17/774,938
Filed by Techtronic Cordless GP, Anderson, SC (US)
PCT Filed Nov. 8, 2019, PCT No. PCT/CN2019/116703
§ 371(c)(1), (2) Date May 6, 2022,
PCT Pub. No. WO2021/087983, PCT Pub. Date May 14, 2021.
Prior Publication US 2022/0289263 A1, Sep. 15, 2022
Int. Cl. B62B 5/00 (2006.01); B62B 5/04 (2006.01)
CPC B62B 5/0066 (2013.01) [B62B 5/0053 (2013.01); B62B 5/0069 (2013.01); B62B 5/0438 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An electric handcart, comprising: a main body, a power supply device mounted on the main body, a motive power device and a control device, the power supply device and the control device being separately connected to the motive power device
wherein the main body comprises a frame on which the power supply device, the motive power device and the control device are mounted, and multiple wheels which carry the frame,
wherein the motive power device comprises a driving device, a transmission device connected to the driving device, a clutch device connected to the transmission device, and a braking device; the wheels are separately connected to the transmission device and the braking device, and the control device is separately connected to the driving device and the braking device, and
wherein the braking device comprises a brake/clutch motor, a cam, a brake line, a braking part, and a brake disk which acts on at least one of the wheels; an output shaft of the brake/clutch motor is connected to the cam, the cam is connected to the braking part via the brake line, and the clutch device is connected to the cam.