Title:
BICYCLE AND FRONT FORK SHOCK ABSORBER STRUCTURE THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/163830
Kind Code:
A1
Abstract:
A bicycle (2000) and a front fork shock absorber structure (1000) thereof. The front fork shock absorber structure (1000) is provided in a head tube (2100) of the bicycle (2000) and is connected to a front fork (2200), and comprises an upper bearing seat (1110), an inner tube (1120), four roller arrays (1130), a positioning shaft (1140), and an upper spring (1150). The upper bearing seat (1110) is movably accommodated in the head tube (2100), and the inner tube (1120) is movably accommodated in the head tube (2100); the upper end of the inner tube (1120) is connected to the upper bearing seat (1110), the lower end of the inner tube (1120) is connected to the front fork (2200), and the inner tube (1120) comprises four outer bearing surfaces (1121). The four roller arrays (1130) are accommodated in the head tube (2100), and the roller arrays (1130) correspond to respective outer bearing surfaces (1121); the positioning shaft (1140) is movably inserted into the inner tube (1120), a first end (1141) of the positioning shaft (1140) is limited in the inner tube (1120), and a second end (1142) of the positioning shaft (1140) is fixed to the head tube (2100). The upper spring (1150) is accommodated in the inner tube (1120) and is sleeved on the outer side of the positioning shaft (1140), and the upper spring (1150) is limited between the first end (1141) of the positioning shaft (1140) and the upper bearing seat (1110). The front fork (2200) is stressed to displace the positioning shaft (1140) relative to the inner tube (1120) so as to deform the upper spring (1150), thereby reducing discomfort caused by impact.
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Inventors:
WEN WEN-HSIANG (CN)
FAN YANG-PING (CN)
FAN YANG-PING (CN)
Application Number:
PCT/CN2020/075492
Publication Date:
August 26, 2021
Filing Date:
February 17, 2020
Export Citation:
Assignee:
CREATIF ENTPR CO LTD (CN)
International Classes:
B62K21/08; B62K25/08
Foreign References:
| CN206719453U | 2017-12-08 | |||
| CN101104433A | 2008-01-16 | |||
| CN203158174U | 2013-08-28 | |||
| CN203078691U | 2013-07-24 | |||
| CN201102615Y | 2008-08-20 | |||
| CN203727581U | 2014-07-23 | |||
| US20010045721A1 | 2001-11-29 |
Attorney, Agent or Firm:
HUAHE IP LIMITED (CN)
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