摘要 |
<p>A method of producing a supporting body having no joint, a supporting body having no joint, and a run-flat pneumatic tire having the supporting body. A hollow-cylindrical member (36) having a bottom section (36B) is formed of a metal sheet by deep drawing. The opening section (36D) side and bottom section (36B) side of the hollow-cylindrical member (36) are removed, then the hollow-cylindrical member (36) is curved into a shape where the intermediate section in the axial direction of the hollow-cylindrical member (36) has a projection section (26A) projecting radially outward, and as a result a shell (26) is formed. Thus, the shell (26) having no joint can be obtained.</p> |
申请人 |
BRIDGEST0NE CORPORATION;NAKAZAWA, KAZUMA;SUGIO, DAISUKE;INO, FUMITAKA;IZUMOTO, RYUJI;IWASAKI, SHINICHI;HIRATA, NARUKUNI |
发明人 |
NAKAZAWA, KAZUMA;SUGIO, DAISUKE;INO, FUMITAKA;IZUMOTO, RYUJI;IWASAKI, SHINICHI;HIRATA, NARUKUNI |