| 摘要 |
PCT No. PCT/SE94/00418 Sec. 371 Date Nov. 3, 1995 Sec. 102(e) Date Nov. 3, 1995 PCT Filed May 5, 1994 PCT Pub. No. WO94/25365 PCT Pub. Date Nov. 10, 1994A continuous flexible web (20) with mutually subsequently disposed package pockets (26) and a method of opening and filling these pockets. The web has two opposite walls (21a, b) and longitudinal first and second edges (22, 23) between which the pockets are located. Each respective wall (21a, b) includes, at a second edge region (23), two opposed edge portions (24a, b) with continuous retainer devices (43a, b) disposed in the longitudinal direction of the web for cooperating with mechanical devices for guiding the edge portions on movement of the web in an apparatus for the supply of material to the pockets (26). Between the pockets, there are disposed transverse slots (27) which, in the region of the edge portions (24a, b) merge into longitudinal slots (29). The edge portions (24a, b) include strip-like portions (14a, b) which extend from the retainer devices (43a, b) located between the longitudinal slots (29) and the second edge (23) of the web. The edge regions (24a, b) of the walls are displaced away from one another to open the pocketsand permit them to be filled after which the edge portions are displaced towards one another to close the pockets. On closure, the edge regions (24a, b) are kept adjacent one another and the longitudinal slots (29) are covered by strips (14a, b) which are folded over the retainer devices and fixed to outer surfaces of the respective walls (21a, b). |
