Bookbinding: process and apparatus – Apparatus – Edge binding apparatus
Patent
1990-06-15
1991-05-14
Watts, Douglas D.
Bookbinding: process and apparatus
Apparatus
Edge binding apparatus
412 7, 412 16, 281 211, B42B 514
Patent
active
050151380
ABSTRACT:
Supplies used with the machine include sheets with holes at intervals, first plastic strips having flexible studs at the same intervals and second strips having holes at the same intervals. The outside surface of said second strip is formed with grooves to receive the bent excess lengths of the studs. The machine has a platen supporting the sheets and a bridge supporting the second strip. The first strip is installed with the studs through the holes in the sheets and second strip. A rotating cam shaft first pulls a pressure bar against the top of the first strip to compress the sheets between the strips with a pre-determined pressure. Mounted on the cam shaft is a drum cam having a pair of grooves which receive cam followers extending from horizontally reciprocating carriages. Each carriage has a pair of bending rollers which have a path of movement immediately below the bottom surface of the second strip. Continued rotation of the cam shaft after compression of the strips is completed causes the carriages to move toward the center of the machine, the rollers bending the excess stud lengths at right angles and into the grooves.
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Crudo Phillip M.
Foltz Scott
Lay Roger F.
Caplan Julian
Payer Hwei-Siu
Velo-Bind Inc.
Watts Douglas D.
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