Title:
BICYCLE TRANSMISSION APPARATUS, AND BICYCLE AND ELECTRIC BICYCLE PROVIDED WITH APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/019455
Kind Code:
A1
Abstract:
A bicycle transmission apparatus, and a bicycle and an electric bicycle provided with the apparatus. The transmission apparatus comprises a five-way tube (3) and a rear fork (7), the inside of the five-way tube (3) being provided with a transmission input shaft (1), the inside of the rear fork (7) being provided with a transmission output shaft (4) matchingly connected via a bevel gear to the transmission input shaft (1), the two ends of the transmission input shaft (1) being respectively fixedly connected via support bearings (5) to five-way tube caps (6) correspondingly arranged on two sides of the five-way tube (3), the two ends of the transmission input shaft (1) being respectively fixedly connected to bicycle pedals, the transmission output shaft (4) being respectively fixedly connected via sleeved thrust ball bearings (9) and needle bearings (10) to output shaft bearing mounts (8) arranged between the five-way tube (3) and the rear fork (7). The thrust ball bearings (9) and the needle bearings (10) replace traditional deep groove ball bearings, and since the axial load of the thrust ball bearings (9) is large, the radial load of the needle bearings (10) is large and the volume of the needle bearings (10) is small, the transmission apparatus has a more compact overall structure, a smaller volume and a longer service life.
Inventors:
ZHUO LAN (CN)
Application Number:
PCT/CN2017/108293
Publication Date:
January 31, 2019
Filing Date:
October 30, 2017
Export Citation:
Assignee:
WUXI LANLING ZHUOWEI POWER TECH CO LTD (CN)
International Classes:
B62M11/02; B62M11/10; B62M17/00
Foreign References:
| CN2098457U | 1992-03-11 | |||
| CN207536087U | 2018-06-26 | |||
| KR20020072042A | 2002-09-14 | |||
| CN206579772U | 2017-10-24 | |||
| CN205186403U | 2016-04-27 | |||
| CN206407062U | 2017-08-15 | |||
| CN102563003A | 2012-07-11 |
Attorney, Agent or Firm:
BEIJING UTC LIANFENG INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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