초록 ▼

An easy opening bag pack and supporting rack system is provided which includes a plurality of gussetted bags of the T-shirt type or of the flat top type provided with bag mounting apertures through all of the bag walls on opposed sides thereof and additional cuts in the front wall portion and the fr

An easy opening bag pack and supporting rack system is provided which includes a plurality of gussetted bags of the T-shirt type or of the flat top type provided with bag mounting apertures through all of the bag walls on opposed sides thereof and additional cuts in the front wall portion and the front section of the gussetted side wall portions and in communication with the bag mounting apertures therein for effectively enlarging such apertures. A rack mounts the bag pack through the mounting apertures and includes stub shaft supports laterally spaced from each other and being a length less than the outwardly extending dimensions of an open bag and greater than the thickness of the bag pack and include an enlarged portion on the free outer ends thereof of greater dimensions than the bag mounting apertures. With this construction, the front wall and the front section of the gussetted side walls may be easily pulled from the stub shaft supports to open the outermost bag in the pack while retaining the rear wall and the rear section of the gussetted side wall of the bag on the stub shaft supports so that the bag is partially held on the rack in the opened position during loading. A method of fabricating the bags is also provided which forms the additional cut to enlarge the bag mounting apertures in the front wall and front section of the gussetted side walls by cutting against flat plates positioned within the gusset folds of a continuous tube of film being utilized to fabricate the bags.

대표청구항 ▼

A method of fabricating easy opening bag packs in which each of the bags has integrally connected front and rear wall portions and gussetted side wall portions secured together at the bottoms thereof to define a closed bottom and at least partially open at the tops thereof to define a mouth portion

A method of fabricating easy opening bag packs in which each of the bags has integrally connected front and rear wall portions and gussetted side wall portions secured together at the bottoms thereof to define a closed bottom and at least partially open at the tops thereof to define a mouth portion and aligned bag mounting apertures cut through all of the wall portions on opposed sides of the bag near the top thereof and an additional cut portion in the front wall portion and the front section of the gussetted side wall portions and in communication with the apertures therein for effectively enlarging the apertures to provide easy opening of the bag when mounted on outwardly extending stub shaft supports of a rack, said method including the steps of: feeding a generally flat side-gussetted continuous tube of material in a generally linear direction and along flat plates extending into the side gusset folds to separate front and rear sections of the gusset folds; cutting the top layer and front section of the gusset fold against the flat plates on opposed sides of the continuous flat tube in a desired configuration at spaced intervals as the tube is being fed in the linear direction to form the additional cut portion for effectively enlarging the bag mounting apertures in the bags being fabricated; thereafter transversely cutting the continuous flat tube at spaced intervals as the tube is being fed in the linear direction and between the cuts formed by the preceding cutting step to form individual bags from the tube and while sealing at least every other transverse cut to form the closed bottoms on the bags; and cutting the bag mounting apertures through all of the layers on opposed sides of the bags and to communicate with the additional cut in the top layer and front section of the gusset folds at a desired time in the bag fabricating method.