Method and device for manufacturing support body for run flat
OwnerTakuzo Sano, Noboru Takadainventors
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Abstract
A method of manufacturing a support body for run flat, wherein in a case where the circumferential wall of a tubular blank B is pressingly held between inner and outer molding rollers 1 and 2 and where the molding rollers 1 and 2 are rotated to form at least one circumferentially continuous protruding part on the circumferential wall of the tubular blank B to process the tubular blank B into an annular shell, a molding roller having the maximum outer diameter that is substantially the same as the inner diameter of the tubular blank B is used as the inner molding roller 1.
Claims6
A method of manufacturing a support body for run flat, which comprises pressing a circumferential wall of a tubular blank between inner and outer molding rollers and rotating the inner and outer molding rollers to form at least one circumferentially continuous protruding part on the circumferential wall of the tubular blank to process the tubular blank into an annular shell,
- wherein the inner molding roller is a molding roller having the maximum outer diameter that is substantially the same as the inner diameter of the tubular blank.
A device for manufacturing a support body for run flat, which comprises inner and outer molding rollers to press the circumferential wall of a tubular blank between the inner and outer molding rollers that are rotated to form at least one circumferentially continuous protruding part on the circumferential wall of the tubular blank to process the tubular blank into an annular shell,
- wherein the maximum outer diameter of the inner molding roller is substantially the same as the inner diameter of the tubular blank.
Dependencies are inferred from the claim text.