Title:
METHOD FOR MANUFACTURING FOAM TIRES HAVING NON-UNIFORM INNER BUBBLES, AND STRUCTURE OF THE FOAM TIRE
Document Type and Number:
WIPO Patent Application WO/2011/142521
Kind Code:
A1
Abstract:
The present invention relates to a bicycle tire, and more particularly, to a foam tire having a low-density-bubble configuration made of a foamed thermoplastic resin such as EVA, so as to provide a predetermined air cushion function without the use of an air inner tube. The foam tire of the present invention is capable of achieving the physical properties of a tire having an air inner tube by implementing a cell structure in which inner/outer air bubble densities are differentiated as described above in order to improve the overall resilience and strength of the tire as compared to tires of the prior art that are configured with uniform bubble density. Thus, the tire has good industrial applicability and can be applied for existing types of industrial tires, premium bicycle tires, etc.
Inventors:
LEE, Sung Yull (19-905, Lucky Apt.707, Oncheon-Dong, Dongrae-Gu, Busan 607-060, 607-060, KR)
Application Number:
KR2010/009522
Publication Date:
November 17, 2011
Filing Date:
December 29, 2010
Export Citation:
Assignee:
FINE CHEMICAL CO., LTD. (7-1 Jukkok-Ri, Jinyeong-EupGimhae, Gyeongsangnam-Do 621-801, 621-801, KR)
화인케미칼 주식회사 (경상남도 김해시 진영읍 죽곡리 7-1, 621-801 Gyeongsangnam-Do, 621-801, KR)
화인케미칼 주식회사 (경상남도 김해시 진영읍 죽곡리 7-1, 621-801 Gyeongsangnam-Do, 621-801, KR)
International Classes:
B29C44/02; B29D30/08
Attorney, Agent or Firm:
KIM, Young-Ok (OK International Patent & Law Office, 9F 739-3, Yeonsan 4-Don, Yeonje-Gu Busan 611-822, 611-822, KR)
Claims: