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Title:
OPEN-TYPE BOTTOM BRACKET FOR BICYCLE
Document Type and Number:
WIPO Patent Application WO/2011/102590
Kind Code:
A1
Abstract:
The present invention relates to a bottom bracket for a bicycle, and more particularly, to an open-type bottom bracket intended to improve a bottom bracket and coupling structures. According to the present invention, an open-type bottom bracket for a bicycle, comprises: an opening, which is formed by a left wall, a right wall, and a back wall; a sprocket, which is located in the inner side of said opening; bearing stays and crank arms, which are located on both outer sides of said open space; a crankshaft, which intersects the inner and outer sides of said opening and is coupled with said crank arms; and a bearing, which supports the rotation of said crankshaft and is interpolated into said bearing stays, wherein said left wall is coupled between one bearing stay and said sprocket, and said right wall is coupled to the other bearing stay.

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Inventors:
YEOM, Dong Hwan (Dangkok Maeul, 743 Pungmu-dong Gimpo-si, Gyeonggi-Do 415-809, 415-809, KR)
Application Number:
KR2010/007683
Publication Date:
August 25, 2011
Filing Date:
November 03, 2010
Export Citation:
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Assignee:
YEOM, Dong Hwan (Dangkok Maeul, 743 Pungmu-dong Gimpo-si, Gyeonggi-Do 415-809, 415-809, KR)
염동환 (경기도 김포시 풍무동 743 당곡마을, 415-809 Gyeonggi-Do, 415-809, KR)
International Classes:
B62K19/34; B62K19/44; B62M3/00
Domestic Patent References:
WO2003062039A1
Foreign References:
JPS57176387U
JP2005219728A
US20020152836A1
EP1724188A1
Attorney, Agent or Firm:
PARK, Yang-ho et al. (With Patent Law Office, Hansol-3cha 2051597-1 Gwanyang-dong,Dongan-gu, Anyang-si, Gyeonggi-do 431-815, 431-815, KR)
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Claims: