DE958265C - Cross-bottom bag with a filling valve - Google Patents

Description

ISSUED FEBRUARY 14, 1957

W12456 VII154b

Cross-bottom bags with a filler valve in the corner are known. You usually have these formed by valve inserts and has already proposed cuts in the corner impact Provide formation of a flap inside the bag.

In contrast to the known technology, according to the invention, on the valve side from the Corner impact a preferably square piece ίο cut out so that edge strips on the Folded edges of the page envelopes and on the line connecting the corners of these folded edges stand still and are folded outwards as a valve extension when the bottom is folded up, the parts of the corner opening from the corners of the page flaps to the tip of the corner opening are unfolded again. In this way the bags get a valve that makes the filling very easy and can be closed in a simple manner after filling. Here is the production Cheaper because a valve insert and possibly also the bottom cover sheet is saved.

The invention is explained below with reference to the figures.

Fig. Ι shows the end of a cross-bottom bag drawn to the bottom square;

Fig. 2 shows the same end with the folded side flaps;

Fig. 3 is an illustration of a finished valve base constructed with a base cover; Fig. 4 is an illustration of a finished valve base which is designed without a base cover sheet. One end of a hose section ι which is closed at its other end is drawn up to the floor square 2-3-4-5. In the corner tuck 2-3-5 ^e i ⁿ cutout is provided 6-7-8-9, which preferably has a quadrangular shape. The cuts are placed in such a way that marginal strips remain on the folded edges ι ο-11 and 12-13 of the page covers and on the line connecting the corners of the folded edges 10 and 12. The width of the edge strips is adapted to the desired size of the valve extension.

In order to create a valve base from the corner entry prepared in this way, you have to make a part of the corner fold open again and in the further configuration a new one, not yet beao provide known fold edge. This idea is new and required an inventive daring especially since one saw the decisive feature of a cross bottom in the folded corner envelope.

The side envelopes 3-10-11 and 5-12-13 wers5 the lines 10-11 and 12-13 drawn in dash-dotted lines (see Fig. 2). Here are the parts of the corner impacts with the edge strips, which are indicated by the digits 3-9-8-7-6-5-12-10-3 are designated, folded outwards. At the same time, a new fold is created along line 10-12 (see also Fig. 1), around which the remaining edge part 7-8-10-12 is placed on the outside. the The rest of the edge parts with the edges 8-9 and 6-7 are placed on the after the bottom fold has been completed Edge part 7-8-10-12 and thus form a valve extension for the filler valve on one narrow side of the cross base. The page envelopes are as far as they overlap, glued together (Fig. 3); gluing also takes place between the page covers and the. Middle part of the not cut-out corner entry 3-4-5 Finally, a bottom cover sheet 14-15-16-17, indicated by dash-dotted lines, is placed on the floor, initially only with its part 18-15-16-19 is glued to the floor.

The bag is now ready to be filled. The filler neck can through the extended valve opening can be easily introduced so that the filling material gets into the interior of the bag without losses. To now that Closing the valve after filling, the valve extension will be 7-8-10-12 around the fold line 10-12 folded down on the floor and under the unglued Part of the cover sheet 14-17-19-18 pushed, whereby the valve leading edge 7-8 comes into position 7'-8 '. Then the bottom cover sheet end glued to the folded valve extension. It is useful for gluing an application of dry adhesive previously carried out on the surfaces to be bonded. In another embodiment of the invention according to Fig. 4 without a bottom cover sheet is the Cutout 6-7-8-9 in corner fold 2-3-5 (Fig. 1) is not complete, but only with the I. Incisions 6-7 and 8-9 made so that on the in the same way as in the first embodiment resulting valve extension 7-8-10-12 a flap attached along the line 7-8 6-7-8-9 arises. This flap is used as a closure member with the valve extension after the bag has been filled folded together on the bottom of the bag in the position indicated by dash-dotted lines and glued there. This creates a tight seal for the valve without an additional bottom cover sheet achieved.

The side opposite the valve can be formed in the shape customary for cross arches. But you can also make incisions 20-21 and 22-23 ^m the corner fold 3-4-5 in a known manner, then fold the free triangular areas of the page envelopes around the folded edges 3-11 and 5-13 and then get two rectangular ones Bottom flaps that enable perfect bonding.

The invention provides a cross-bottom bag with a filler valve in which to Forming a valve extension no additional paper and no additional work are required. The bottom cover can also be omitted. A tight and durable closure can be achieved, which can easily be made using dry glue.

Claims (5)

PATENT CLAIMS: 1. Cross-bottom bag with a filling valve, the bottom of which is at one corner with Incisions and the other corner entry is closed in any way, ■ characterized in that on the valve side from the corner impact (2-3-5) ei "preferably square piece (6-7-8-9) is cut out in such a way that the edge strips on the folds (10-11 and 12-13) of the side covers and on which the corners of these folding edges (10 and 12) connect Stop line and when folding the bottom are folded outwards as a valve extension (7-8-10-12), whereby the parts of the corner entry from the corners (10 or 12) of the page covers to Tip (3 or 5) of the corner entry are unfolded again. 2. Cross bottom bag according to claim 1, characterized in that it is preferably square piece is only provided with side incisions (6-7 and 8-9) and the resulting, at its edge (7-8) attached flap (6-7-8-9) together with the edge strips when folding the bottom for Forming a valve extension is folded outward. iao 3. cross bottom bag according to claim 1, characterized in that the valve extension (7-8-10-12) folded around the edge (10-12) outside on the floor after the bag has been filled and under a corresponding part which is not initially glued to the floor (14-17-19-18) of the bottom cover sheet (14-15-16-17) is glued to the bottom and / or the cover sheet. 4. cross bottom bag according to claim 2, characterized in that the. Valve extension (7-8-1 ο-12) together with the attached Flap (6-7-8-9) after filling the bag around the edge (10-12) on the outside The bottom is folded and glued to the bottom. 5. Cross bottom bag according to claim 1 to 4, characterized in that the corner impact opposite the valve is provided with known incisions (20-21 or 22-23) ^to form a rectangular bottom flap and after the bottom has been folded with the bottom surface with or is glued without a bottom cover sheet. Documents considered: German Patent No. 646738; British Patent No. 314 712. 1 sheet of drawings S 609 580/72 8.56 (609 797 2. 57)