B - Operations – Transporting – 60 – J
Patent
B - Operations, Transporting
60
J
B60J 7/043 (2006.01) B21D 39/02 (2006.01) B21D 53/88 (2006.01) B26F 1/40 (2006.01) B62D 65/06 (2006.01)
Patent
CA 2281175
A method of stamping and punching at several stations, an opening in a vehicle rood panel to provide for sunroof installation is described. A preformed recess is stamped into the top section of the panel to define a perimeter for a sunroof opening. The stamping of the preform comprises locating the roof panel in a stamping press beneath a press die where the die is aligned with the perimeter of the desired position for the sunroof opening. The preform recess is stamped in the panel where the preform is characterized by having a first bend which defines the opening perimeter and comprises rounded corner portions interconnected a front, rear and two side edges. A downwardly extending flange which becomes a sidewall of the sunroof opening is provided and has a length at least equal to the depth of a sealed portion of the sunroof panel and a second bend extending opposite to the first bend for interconnecting flange to the base portion of the recess. At the subsequent stations the underside surface of the flange of the preform is used to locate the panel for further processing. Preferably, at a subsequent processing station an apparatus is provided for bending lip portions of the depending flange to facilitate insertion of the sunroof. The apparatus has floating backup blocks and stacked stripper block and die block to locate the opening and effect bending of the flange without distorting the precise location of the flanges to ensure a seal with the sunroof panel installation.
A.g. Simpson Co. Limited
Shiloh Industries Inc. Dickson Manufacturing Division
Sim & Mcburney
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