| 摘要 |
PCT No. PCT/SE96/01247 Sec. 371 Date Apr. 1, 1998 Sec. 102(e) Date Apr. 1, 1998 PCT Filed Oct. 3, 1996 PCT Pub. No. WO97/12816 PCT Pub. Date Apr. 10, 1997The invention relates to a web (20) comprising mutually sequentially disposed package blanks (26) and an arrangement for opening and closing the package blanks. The web has longitudinal first and second edges and a first wall (21a) opposite a second wall (21b). Transverse slits (27) are disposed at the side closures of the package blanks. Each respective wall along the second edge is provided with retainers which guide edge portions of the web when the web is displaced along mechanical devices. The walls (21a, b) of each package blank are provided with a longitudinal slit (29a). The slit (29a) in the first wall extends from the slit (27) at one side closure of the package blank, and the slit in the second wall extends from the slit at the second side closure of the package blank. The mechanical devices are disposed in spaced apart relationship from one another in that part of the apparatus where the package blanks are displaced in the opened state and adjacent to one another when the blanks are displaced in the closed state. Guides (35a, b; 36a, b) displace the edge portions (24a, b) of the web (20) in relation to one another when the package blanks are opened or closed. |
