公开(公告)号：US07523554B2

公开(公告)日：2009-04-28

申请号：US10560835

申请日：2004-06-17

Applicant: Shizuo Kimura ,  Kenzo Takeda ,  Ikuo Kato ,  Yukio Uchiyama ,  Tadashi Goto ,  Nobuyuki Kakiya ,  Kiyoshi Satou ,  Naotake Marui ,  Shinichi Ohnaka ,  Tatsuo Yamanaka ,  Jin Fukuda ,  Taisei Wakisaka ,  Haruo Machida

Inventor： Shizuo Kimura ,  Kenzo Takeda ,  Ikuo Kato ,  Yukio Uchiyama ,  Tadashi Goto ,  Nobuyuki Kakiya ,  Kiyoshi Satou ,  Naotake Marui ,  Shinichi Ohnaka ,  Tatsuo Yamanaka ,  Jin Fukuda ,  Taisei Wakisaka ,  Haruo Machida

IPC: B21K1/38 ,  B21D39/02

CPC classification number: B21D53/30 ,  Y10T29/49499 ,  Y10T29/49524 ,  Y10T29/49526 ,  Y10T29/49529 ,  Y10T29/49995

Abstract: A method of manufacturing a wheel rim by bringing end faces of a workpiece into abutment against each other to form a hollow cylindrical body and forming a circumferential recess which is depressed from an outer circumferential wall of said hollow cylindrical body toward an inner circumferential wall thereof, including providing protrusions disposed near ends of a joined area of the hollow cylindrical body and extending in a joining direction, and then pressing the outer circumferential wall of the hollow cylindrical body to form the recess.

Abstract translation: 一种通过使工件的端面彼此抵接而形成轮辋的方法，以形成中空圆柱体，并形成从所述中空圆筒体的外周壁向其内周壁压下的周向凹部， 包括提供设置在中空圆柱体的接合区域的端部附近并沿接合方向延伸的突起，然后压迫中空圆柱体的外周壁以形成凹部。