Title:
SPEED-CHANGING SPROCKET FOR BICYCLE
Document Type and Number:
WIPO Patent Application WO/2017/198133
Kind Code:
A1
Abstract:
A speed-changing sprocket for a bicycle comprises a speed-changing cone pulley (1) and a supporting tube (2). A spline is disposed in an inner hole of the small gear ring end of the speed-changing cone pulley, and an anti-twisting plate (3) is assembled on the inner wall of the large gear ring end of the speed-changing cone pulley. One of the supporting tube (2) is connected to anti-twisting plate, and the other end is connected to the inner side of the smaller end of the speed-changing cone pulley. All gear rings of the speed-changing cone pulley are of an integrated body, thereby ensuring the hardness and the strength of the sprocket. A spline on the anti-twisting plate and the spline on the small gear ring end form a dual-spline structure, so that the stressed state of the sprocket is improved, and the speed-changing sprocket can bear a greater torque.
Inventors:
ZHENG XIAORAN (CN)
Application Number:
PCT/CN2017/084425
Publication Date:
November 23, 2017
Filing Date:
May 16, 2017
Export Citation:
Assignee:
ZHENG XIAORAN (CN)
International Classes:
B62M9/12; B62M9/14
Foreign References:
| CN101683885A | 2010-03-31 | |||
| CN102556274A | 2012-07-11 | |||
| CN205769959U | 2016-12-07 | |||
| CN101513917A | 2009-08-26 | |||
| CN105015695A | 2015-11-04 | |||
| US20100050785A1 | 2010-03-04 |
Attorney, Agent or Firm:
JIAQUAN IP LAW FIRM (CN)
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