| 摘要 |
The present invention relates to a continuous flexible web (20) with mutually subsequently disposed package pockets (26) and a method of opening and filling these pockets. The web displays two opposing walls (21a, b) and longitudinal first and second edges (22, 23) between which the pockets are located. Each respective wall (21a, b) includes, at the second edge region (23), two opposing edge portions (24a, b) with continuous retainer devices (43a, b) disposed in the longitudinal direction of the web for cooperation with mechanical devices for guiding the edge portions on movement of the web into an apparatus for the supply of contents 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 which form the second edge (23) of the web and which connect to retainer devices (43a, b) located between the longitudinal slots (29) and the second edge (23) of the web. On opening and filling of the package pockets, the edge regions (24a, b) of the walls are displaced by means of mechanical devices (33a, b) from one another in order to open the pockets, and towards one another in order, after filling, 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 fixed to each respective wall (21a, b). |
