公开(公告)号：US3846886A

公开(公告)日：1974-11-12

申请号：US37004273

申请日：1973-06-14

Applicant: LIEFELD & CO

Inventor： SCHRODER P ,  POLLKOTTER G

IPC: B60B25/04 ,  B21D9/12 ,  B21D19/12 ,  B21D53/30 ,  B21H1/10 ,  B21K1/38

CPC classification number: B21D53/30 ,  Y10T29/49531

Abstract: A method is disclosed for producing slant shoulder rims for tires including the steps of: forming a metal strip into a ring and welding a longitudinal seam to complete the ring. Then thickening the cross-sectional thickness of one end of the ring by upsetting one edge of the ring with axially advancing spinning roll followed by the step of drawing a snap groove in the thickened end of the ring by radially advancing spinning rolls to form the groove indentation therein. Spinning rolls are used to bend back the outer wall of the snap ring groove. A draw spinning step forms a rim base with a profile of constant strength. A wheel flange is erected into an upright position by a spinning operation on the other end of a ring. During the erecting of the wheel flange the ring is clamped within an internal chuck while one or more spinning rolls having the surfaces for forming the wheel flange are advanced to complete the spinning operation. The outer edge of the wheel flange is severed after being erected.

Abstract translation: 公开了一种用于制造用于轮胎的倾斜肩部轮辋的方法，包括以下步骤：将金属条形成为环并焊接纵向接缝以完成环。 然后通过使轴向前进的纺丝辊镦锻环的一个边缘来增厚环的一端的横截面厚度，随后通过径向前进的纺丝辊在环的增厚端拉出咬合槽以形成槽 缩进。 旋转辊用于弯曲卡环槽的外壁。 拉伸纺丝步骤形成具有恒定强度轮廓的轮辋基部。 轮环的另一端通过旋转操作将轮缘竖立在直立位置。 在车轮凸缘的竖立期间，环被夹紧在内部卡盘内，而具有用于形成车轮凸缘的表面的一个或多个纺丝辊前进以完成旋转操作。 车轮法兰的外缘在竖立后被切断。