Title:
JOINING STRUCTURE FOR A FRAME OF A BICYCLE
Document Type and Number:
WIPO Patent Application WO/2011/005005
Kind Code:
A2
Abstract:
The present invention relates to a joining structure for a frame of a bicycle. The present invention provides a joining structure for a frame of a bicycle having a main frame including a horizontal tube, a vertical tube, an inclined tube, a pair of seat stay tubes and a pair of chain stay tubes. One side of the horizontal tube and one side of the inclined tube are joined to a head tube cell. The other side of the horizontal tube, one side of the vertical tube and one side each of the pair of seat stay tubes are joined to a seat tube cell. The other side of the vertical tube, the other side of the inclined tube and one side each of the pair of chain stay tubes are joined to a bottom tube cell. The other side of the pair of seat stay tubes and the other side of the pair of chain stay tubes are joined to a drop-out tube cell. The abovementioned tubes and cells are joined by a joining member through a press-fitting process. The joining member is a hollow cylinder having a stopper protrusion formed at the center of an outer surface thereof. A plurality of slits is formed into a predetermined length inwardly from both ends of the joining member, respectively, extending from the center of the stopper protrusion. Each of the slits has an end with a through-hole. A plurality of sawteeth protrusions are formed inwardly from the both ends of the joining member, respectively. The sawteeth protrusions are formed at the surfaces between the stopper protrusion and the slits with through-holes, respectively. The present invention eliminates the necessity of a welding process to prevent bicycle accidents caused by faulty welding. The elimination of a welding process results in an economical advantage in a manufacturing process, and eliminates the need for expensive welding equipment. The present invention finishes a painting process for joining members such that the joining members have a variety of patterns prior to an assembly process, thus achieving an aesthetic enhancement. The present invention utilizes not only the same type of metals but also metals of different types, synthetic resins or a variety of natural materials, thus obtaining a variety of designs and an aesthetic enhancement. The present invention enables the assembly of the bicycle frame and the production of the bicycle having an independent model design.
Inventors:
HONG JAE HO (KR)
Application Number:
PCT/KR2010/004386
Publication Date:
January 13, 2011
Filing Date:
July 06, 2010
Export Citation:
Assignee:
GEN ROTOR CO LTD (KR)
HONG JAE HO (KR)
HONG JAE HO (KR)
International Classes:
B62K19/18; B62K19/06; B62K19/16
Foreign References:
| JPS62129386U | 1987-08-15 | |||
| US4940356A | 1990-07-10 | |||
| US5129666A | 1992-07-14 | |||
| US4900049A | 1990-02-13 | |||
| KR940009893U | ||||
| JPH11115861A | 1999-04-27 |
Attorney, Agent or Firm:
SONG, JONG SUN (KR)
송종선 (KR)
송종선 (KR)
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