Patent ID: 11945177
Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
Field: Other special machines (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 7:
8. The method according to claim 2, comprising:
when working the second laminated body,
working the wavy portion along the longitudinal direction at a portion between both side edge portions of the second laminated body while maintaining the side edge portions of the second laminated body as flat portions;
dividing the second laminated body at a width direction middle portion of the second laminated body along the longitudinal direction to form a divided laminated body; and
forming the intermediate product from the divided laminated body of the second laminated body by the forming die such that the flat portion becomes the bent portion that is the inside portion whose circumferential length is shorter in the curved portion, and the wavy portion becomes the bent portion that is the outside portion whose circumferential length is longer in the curved portion.