The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 02, 2025
Filed:
Nov. 03, 2020
Suzhou Wanjia Electric Co., Ltd., Jiangsu, CN;
Fuming Huang, Suzhou, CN;
Junning Huang, Suzhou, CN;
Cheng Ma, Suzhou, CN;
Hualin Cai, Suzhou, CN;
Junhui Yu, Suzhou, CN;
SUZHOU WANJIA ELECTRIC CO., LTD., Jiangsu, CN;
Abstract
A centrally-mounted drive mechanism used for a power-assisted bicycle, and a power-assisted bicycle are provided. The centrally-mounted drive mechanism includes an outer casing, an electric motor, a planetary gear mechanism in a transmission connection with an output shaft of the electric motor, a bevel gear driving end, and a bevel gear driven end that meshes with the bevel gear driving end, said bevel gear driven end being connected to a crankset. The planetary gear mechanism includes a planetary gear and a planetary gear output bracket, and a bevel gear support base that is sleeved on the outer part of the planetary gear output bracket. A clutch is disposed between the planetary gear output bracket and the bevel gear support base, and a transmission connection is formed via the clutch between the planetary gear output bracket and the bevel gear support base.