This system starts with the same floppy two- or three-part vinyl top that's now used. As the operation begins, the top is put on a holding unit and the inside is thoroughly sprayed with a molding compound. Next, the vinyl top and sometimes the extra padding under it are placed in a mold heated to 190 degree to 230 degree F (87 degree to 110 degree C). The mold is shaped exactly like the roof top for which it's destined. On a full top, eight clamps or "grabbers" are then attached to the lower portions of the vinyl. The clamps apply precisely the right amount of tension to stretch the vinyl into place without damage. The assembly is continually heated electrically until the temperature of the vinyl reaches a specified "kickover" point. At this moment the vinyl takes a permanent set and the heat is turned off. The assembly then goes into an oven where it's cured for three minutes at 75 degree F (23 degree C). The final stop is an unload station where a vacuum carrying fixture is attached to the top. The fixture flips the top over and a worker trims off all surplus vinyl. The top can then be warehoused indefinitely or installed immediately.

  • Availability:
  • Corporate Authors:

    Automotive Industries International

    Chilton Way
    Radnor, PA  United States  19089
  • Authors:
  • Publication Date: 1979-7

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00314848
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Jul 22 1980 12:00AM