Folding of flat sheet to exact interior height

Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

156227, 156443, 156492, 264339, B29D 2310

Patent

active

045307296

ABSTRACT:
A folding apparatus and method for folding a flat sheet so that an exact interior height is provided between the two folded portions is disclosed. The flat sheet is folded about a shim having a folding edge which is rounded and which has a thickness corresponding to the desired interior height. The flat shim is positioned on the flat sheet with the edge of the shim located along the line where the fold in the sheet is to be made. Initially, the portion of the sheet away from the shim is folded approximately 90.degree. by tangential bending on the folding edge of the shim. Next, a die having a facing edge mating with the folding edge of the shim is pushed onto the folding edge of the shim. The portion of the sheet which was folded 90.degree. is thus folded onto the top of the shim to approximately 180.degree.. With this two step folding, an exact interior height adjacent the fold is provided. The method and apparatus of the present invention is conveniently used for forming flat jackets having an exact interior height. A plurality of these flat jackets can be formed by providing a plurality of forming devices on a turntable where each step of the forming process is sequentially performed.

REFERENCES:
patent: 2892217 (1959-06-01), Luboshey
patent: 4153665 (1979-05-01), Vecchiotti et al.
patent: 4272235 (1981-06-01), Barnett
patent: 4310371 (1982-01-01), Appoldt et al.
patent: 4347091 (1982-08-01), Hauck et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Folding of flat sheet to exact interior height does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Folding of flat sheet to exact interior height, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Folding of flat sheet to exact interior height will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-633426

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.