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Title:
CARBON FIBER BICYCLE FRAME WITH EMBEDDED OPTICAL FIBERS FOR DETECTING CRACKS THEREINTO AND METHOD FOR DETECTING CRACKS IN CARBON  FIBER  BICYCLE  FRAME
Document Type and Number:
WIPO Patent Application WO/2010/020172
Kind Code:
A1
Abstract:
A carbon fiber bicycle frame (4) with embedded optical fibers is that single-mode optical fibers (2) are embedded in the unitary carbon bicycle frame (4) or consolidated with a carbon fiber fabric (1) which is used to produce the bicycle frame (4). While detecting whether or not cracks occur in the bicycle frame (4), the single-mode optical fibers (2) embedded in the bicycle frame is connected to an optical time-domain reflectometry which is used to sense the intensity of light reflected from inside of the single-mode optical fibers (2) at different time points, so as to determine whether or not the single-mode optical fibers (2) are twisted while being effected by cracks in carbon fiber fabric (1), viz. the intensity of light signals transmitted through a twisted portion of the single-mode optical fibers (2) will decrease, so as to locate cracks in the carbon fiber fabric according to the time points when the intensity of the reflected light shows an abnormal drop and the speed of light, and thereby locate cracks in the carbon fiber bicycle frame (4). The detecting method can efficiently check whether or not twists or cracks occur in the carbon fibers of the bicycle frame while produce the bicycle frame, so as to improve efficiency of both a quality check in the manufacturing process of the bicycle frame and a safety check after the bicycle frame has been used for some time.

Inventors:
HUANG, An-Bin (20 Alley 1 Ln 16 San Ming Rd, Shang Shan Village Chiunglin Townshi, Hsinchu Taiwan 307, 307, CN)
Application Number:
CN2009/073318
Publication Date:
February 25, 2010
Filing Date:
August 18, 2009
Export Citation:
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Assignee:
HUANG, An-Bin (20 Alley 1 Ln 16 San Ming Rd, Shang Shan Village Chiunglin Townshi, Hsinchu Taiwan 307, 307, CN)
International Classes:
B62K3/02; B62K19/02; G02B6/00
Foreign References:
CN1086775A1994-05-18
US4629318A1986-12-16
CN1733645A2006-02-15
US7176448B22007-02-13
US7212696B22007-05-01
US4922096A1990-05-01
US6370964B12002-04-16
Attorney, Agent or Firm:
BEIJING HUIZE INTELLECTUAL PROPERTY LAW LLC (ZHANG, JinA18, Horizon International Tower,No.6, Zhichun Road, Haidian District, Beijing 8, 100088, CN)
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