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:
Nov. 06, 2018
Filed:
Nov. 01, 2017
Otis Elevator Company, Farmington, CT (US);
Jiangxing Huang, Shanghai, CN;
Fengshu Yue, Tianjin, CN;
Shimao Chen, Hangzhou, CN;
Jie Hu, Hangzhou, CN;
Jianguo Li, Hangzhou, CN;
Hongmin Zhu, Shanghai, CN;
Jianye Yang, Shanghai, CN;
Jiawei Wu, Shanghai, CN;
Bingyin Cheng, Shanghai, CN;
Jinqi Yang, Shanghai, CN;
Yunyun Zhao, Shanghai, CN;
Otis Elevator Company, Farmington, CT (US);
Abstract
A direct-drive system for a passenger transportation apparatus, and a passenger transportation apparatus having same. The direct-drive system comprises: a motor comprising a motor output shaft, for providing power; a main drive shaft for transmitting the power to a passenger transportation portion of the passenger transportation apparatus; and a gear box comprising an input end connected to the motor output shaft and an output end connected to the main drive shaft respectively, and being used for transmitting the power, provided by the motor, to the main drive shaft, wherein the gear box comprises a plurality of gear pairs, and each of the gear pairs has a progressively decreasing gear slope along the direction from the input end of the gear box to the output end thereof.