Method of and apparatus for uninterruptedly assembling components for making bags

In apparatus for uninterruptedly assembling components for making bags having opposed sheet material wall panels and an openable mouth defined by pull flanges adapted to be pulled apart for opening the bags:

• means for supporting and continuously longitudinally advancing preformed wall panel sheet material having a pull flange area along one edge, and for continuously, at the same speed as said panel sheet material, longitudinally advancing and guiding a preformed extruded plastic flexible interlocking fastener strip having opposite faces, one of said faces having profile means for separably interlocking with complementary profile means on another strip and the other face providing a base surface of substantial width directly opposite said profile means, and joining said base surface in face-to-face relation with a surface of said wall panel material along the inner side of said pull flange area and substantially spaced from said edge;
• and means for continuously securing a minor width longitudinally extending portion of said fastener strip base surface adjacent to said pull flange area as a hinge attachment to said wall panel material but leaving the remainder of said base surface free so that said strip is adapted to swing hingedly relative to said wall panel material.

In apparatus for uninterruptedly assembling components for making bags having opposed sheet material wall panels and an openable mouth defined by pull flanges adapted to be pulled apart for opening the bags:

• means for supporting a wall panel sheet material having a pull flange area along one edge, and for continuously advancing and guiding and joining a base surface of substantial width of a preformed extruded plastic flexible interlocking fastener closure strip in face-to-face relation with a surface of said wall panel material along the inner edge of a pull flange area of said material;
• means for continuously securing a minor width portion of said fastener strip base surface adjacent to said pull flange area as a hinge attachment to said wall panel material but leaving the remainder of said base surface free so that said strip is adapted to swing hingedly relative to said wall panel material;
• and means for maintaining said wall panel material and said remainder of said base surface separated while said securing means functions to secure said minor width portion of said base surface to said wall panel material.