DE1164313B - Valve insert on a cross-bottom valve bag made of paper or a similar material - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY DEUTSCHES '/ WWW! - PATENT OFFICE Internat. KL: B 65 d

EDITORIAL

Number: File number: Registration date: Display day:

German KL: 81c-8

K 43084 VIIb / 81 c

March 4, 1961

The invention relates to the valve insert on a cross-bottom valve bag made of paper or from a similar material.

In the manufacture of cross-bottom valve bags made of paper or a similar material the difficulty of closing the bag valve so tightly with simple means that no filling material can escape from the sack when it has been filled with fine-grained contents.

Cross-bottom valve sacks are already known in which the sack valve is tongue-shaped or tubular Valve inserts are arranged, which protrude with one end into the interior of the bag to the filled sack through the ends protruding against the insertion valve and against the ends that protrude into the interior of the sack the pressure acting in the form of tongue-shaped or tubular valve inserts in the bag valve of the contents in the sack to close automatically.

It has been shown, however, that these known tongue-shaped or tubular valve inserts in the case of a sack filled with fine-grained contents -not a sufficiently tight closure of the Sack valve is guaranteed that meets the current requirements.

Also known is a valve bag made of paper or the like with a tube inserted into the valve opening which the hose end protruding freely into the inside of the sack is frayed. The Fringes can be curled, they can be of different lengths, they can also be pointed. The one in the valve opening inserted hose or at least its end protruding into the interior of the sack can be used be made of woven material, for example from velvet, woolen fabric or the like, for fraying or Matting prone fabric.

But even these measures have not yet led to a satisfactory result with regard to the Sealing the bag valve out. In addition, the production of these known ones is too complicated tubular valve inserts and their arrangement in the bag valve too cumbersome and therefore too high Associated costs.

The same also applies to a known valve bag made of paper or similar material with a tubular inner valve insert provided with slits made of supple material, the one Has multiplicity of slots distributed over the entire circumference of the valve hose, which do not extend to the Reach the inside edge of the corner where the valve hose at the bag valve inlet is connected to a after the inside of the bag is attached to an open envelope.

Valve insert on a cross-bottom valve bag
made of paper or a similar material

Applicant:

Jürgen Klein, Höste about Lengerich (Westphalia) 45

Named as inventor:

Jürgen Klein, Höste about Lengerich (Westphalia)

It is also known on a sewn valve bag to have an extension tab with one end under the valve-forming corner impact to push the sack and there with this preferably by glue connect to. The other end of the extension flap protrudes into the interior of the sack. At The extension flap is provided with an incision at its end protruding towards the inside of the sack. which runs in the longitudinal direction of its middle fold and on the edge facing the inside of the bag of the valve-forming corner impact ends. From this longitudinal incision there is an angled one short incision. Starting from this short incision, there is then a narrow flap part, that is to say a narrow edge, bent down towards the inside of the sack. This slides on the other Edge of paper past the slot without getting stuck, so that an actual or permanent overlap the longitudinal edges of the slot does not take place.

It is still on a valve sack or bag made of paper, fabric or the like with an arranged in the valve, Known tubular insert protruding into the interior of the bag via the valve lip, that the insert on the underside of its protruding over the valve lip part with a for the Falling through of filling material is provided suitable opening that does not extend to the valve lip and to the Folds of the bottom flap extends. This opening can be made from a T-shaped section or from a self exist over the entire length of the insert extending gap.

These are wide openings that prevent the product from falling through, but not the Can favor closure of the bag valve.

The invention is based on the object of overcoming the existing difficulties and with particularly simple means to bring about a better closing effect of the bag valve.

409 510/197

3 4

According to the invention, this object thereby becomes a firm, tight connection between them

solved that the valve insert consists of two strips, the longitudinal edges of the strips and the sack bottom side

which consists of turning over with a loose overlap of its longitudinal edges. This tight, tight connection

between the edge edges facing each other also includes the edge facing the inside of the sack

the area of the cross-bottom corner impacts on 5 of the valve-forming corner impact of the cross-bottom,

their ends with the valve-forming corner impact The closed valve base is therefore also

the bottom of the cross is tightly glued and particularly tightly closed in rich of its fold lines,

as is known, with their other ends up. Since the longitudinal edges of the strips are on a long

Overlap approximately to the edge of the section facing the inside of the sack and when the sack is filled

edge of the cross opposite to the valve is closed by the filling material in the sack.

The inside of the sack extends from the bottom corner and cannot leave one layer each

Longitudinal edge with their associated inner surfaces valve channel not for such means as pipe

the sack bottom side envelopes are glued. or the like, accessible, which can serve to

As a result, a part of what is in the sack is removed from what is known

Achieved low advantages: 15 filling goods, such as sugar, flour or the like, can be removed.

Since the valve insert consists of two strips, another embodiment is that

you can put these strips on supply rolls - also the ends of the strips with the valve

Wrapped paper webs of the appropriate width in the opposite corner of the cross base

be separated so that the separated strip parts are glued tightly.

corresponds to the desired length of the valve insert, and 20 This ensures that a tight connection

this can occur in the course of the mechanical soil formation between the one opposite the valve

in the still spread valve base of the cross corner impact of the cross base and the

Bottom valve sack is introduced and glued to the strip ends in connection with

the, so that there is no waste of paper and the sack bottom side envelopes and therefore

too expensive manual labor is avoided. It is also 25 in the area of this when the valve base is closed

not necessary, the valve insert with the known connection does not have any exit paths for the

To provide longitudinal incisions or recesses, sensitive contents are present,

so that this work and the necessary precautions

directions can be saved. _ger way be supplemented by the fact that their strips

The width of the loose overlap and the 30

related passageways for the turned sides are coated with plastic,

Filling material flowing into the sack when it is being filled can then be used

can thereby be formed in a simple manner, find when the sack is filled with a filling material

that one feeds webs, two edges of which are so which are particularly resistant to moisture

are superimposed that a sufficient 35 should be protected.

In the drawing, the invention is shown schematically

Closing effect of the bag valve illustrated with the help of the valve. It shows

tileinlage brings about. F i g. 1 the top of a cross bottom valve die better closing effect of the valve insert sack with the valve base still spread open, with afterwards the invention is ensured over the known 40 in arranged strips 5 and 6, valve inserts in that FIG. 2 shows the upper end of a cross-bottom valve longitudinal edges the strip on a long stretch of the sack with the valve base still spread open, with and also overlap to a sufficient width. in arranged strips 5 'and 6',

Before the sack is filled, it is filled with its F i g. 3 the back of strips 5 and 6 according to

Valve channel on the filler neck of the bag filling machine 45 Fig. 1,

pushed. During the filling process, the expression from FIG. 4 the back of strips 5 'and 6'

Fig. 2 and exiting the filling nozzle of the bag filling machine

Füllgutstrom the loosely overlapping longitudinal edges- Fig. 5 is a section through the upper end of a the so far down that the product flow into the cross-bottom valve bag when the valve bag is closed got. When the bag is filled and the filling base and the valve channel open in a diagrammatic view trim the bag filling machine is pulled, then representation.

the filling material located in the sack expresses the in the How from F i g. 1 of the drawing can be seen between the facing edges with the valve-forming corner impact 2 of the Kreuzder The ends 3 and 4 of two strips 5 and 6 are located at the bottom of the cross-bottom corner impacts loosely overlapping longitudinal edges of the strips are made of elastic material such as paper or the like, tightly together that the valve channel is tightly closed. glued together with their other ends 7 and 8 This also guarantees that the edge facing up to approximately the inside of the bag will be overlapping longitudinal edges their closed position edge 9 of the cross opposite the valve can leave because they extend in the way solid corner impact 10 and each with one are glued so that their overlap width remains constant 60 longitudinal edge 11, 11 with the interior assigned to them, areas of the sack bottom side envelopes 12 and 13 Since the ends of the strips are glued to the one assigned to them, with their other longitudinal edges Neten valve-forming corner impact of the cross base 14, 15 in the between the facing are tightly glued and the strips each have a marginal edge 9 and 9 'of the cross-bottom corner impacts 2 Loosely overlap the longitudinal edge with the inner surfaces 65 and 10 assigned to them, the sack bottom side envelopes are glued, extend- In the embodiment shown in FIG ken these edges also over the fold lines are with the valve-forming corner impact 2 of the Sack bottom side envelopes so that one ends 3 and 4 of the strips 5 'on this cross bottom

and 6 'and their other ends T and 8' are tightly glued to the corner piece 10 of the cross base opposite the valve. In this embodiment, too, the strips 5 'and 6' are each glued with a longitudinal edge 11, 11 to the inner surfaces of the sack bottom side envelopes 12 and 13 assigned to them, with their other longitudinal edges 14, 15 in the between the facing edge edges 9 and 9 'of the cross bottom corner impacts 2 and 10 loosely overlap the area lying. In order to make the position of the overlapping edges 14, 15 relative to one another more clearly recognizable, FIG. 1 illustrates a corner of the longitudinal edge 15 in a folded position.

In Fig. 3, the back of the strips is 5 and 6 shown according to Fig. 1, the speckled surfaces serving to stick them Glue is illustrated. The overlapping longitudinal edges 14 are in the area of the ends 3 and 4 and 15 of the mutually associated strips 5 and 6 also glued to one another separately.

In Fig. 4 the back of the strips 5 'and 6' shown in FIG. Through the speckled areas is the glue used to stick them illustrated. In the area of the ends 3 and 4 and in the area of the ends 7 'and 8' are the overlapping longitudinal edges 14 and 15 of the mutually associated strips 5 'and 6' also for themselves glued.

In Fig. 5 is a section through the upper end of a cross-bottom valve bag through the bag bottom side envelopes 12 and 13 shown diagrammatically with the valve base closed, the valve channel 16 emanating from the bag valve being opened in such a way that that it can be pushed onto the filler neck of the bag filling machine in a manner known per se.

Before the sack 1 is filled, it is connected to the filling nozzle of the sack filling machine with its valve channel 16 pushed. During the filling process, it pushes out of the filling nozzle of the bag filling machine exiting filling material stream the overlapping longitudinal edges 14 and 15 so far down that the Flow of filling material enters the sack. When the sack 1 is filled and pulled from the filler neck of the sack filling machine is, then the filling material in the sack pushes the one between the two facing each other Edge edges 9 and 9 'of the cross bottom corner tucks 2 and 10 loosely overlapping longitudinal edges 14 and 15 of the strips 5 and 6 (F i g. 1 and 3) or 5 'and 6' (Fig. 2 and 4) together so that the Valve channel 16 is tightly closed.

The tight closure of the valve channel is ensured in particular by the fact that the Longitudinal edges 14 and 15 of strips 5 and 6 or 5 'and 6' overlap over a long distance.

Since the ends 3 and 4 of the strips 5 and 6 (Fig. 1) are tightly glued to their associated valve-forming corner impact 2 of the cross base and the strips 5 and 6 each with a longitudinal edge 11, 11 with their associated inner surfaces of the sack bottom side envelopes 12 and are bonded 13 to 11 extend the edges 11, via the fold lines AB and CD of the bag bottom side covers 12 and 13 also, so that in this way a firm, sealed connection between the longitudinal edges 11, 11 of the strips 5 and 6 and the bag bottom side envelopes 12 and 13 consists. This firm, tight connection also includes the edge of the valve-forming corner insert 2 of the cross base facing the inside of the bag. The closed valve base is therefore particularly tightly closed in the area of the fold lines ab and cd.

Claims (3)

Patent claims: 1. Valve insert on a cross-bottom valve bag made of paper or a similar material, which are tightly glued to the valve-forming corner impact and on their underside with a Opening, e.g. B. a longitudinal slot is provided, characterized in that the valve insert consists of two strips (5, 6) which, with a loose overlap of their longitudinal edges (14, 15) in the between the mutually facing marginal edges (9, 9 ') of the cross bottom corner impacts (2, 10) at their ends (3, 4) with the valve-forming corner (2) of the cross bottom is tightly glued and in a known manner with their other ends (7, 8) up to approximately the edge (9) of the opposite side of the valve facing the inside of the bag Kreuzbodeneckeinschlag (10) extends and each with a longitudinal edge (11, 11) with their associated inner surfaces Sack bottom side envelopes (12, 13) is glued. 2. Valve insert according to claim 1, characterized in that the ends (7 ', 8') of the Strip (5 ', 6') with the corner entry (10) of the cross base opposite the valve are tightly glued. 3. Valve insert according to claims 1 and 2, characterized in that the strips (5, 5 'and 6, 6') with plastic on their sides facing away from the sack bottom which is still spread open are coated. Considered publications:
German Patent Nos. 969 586, 818 898;
U.S. Patent Pencil No. 2,177,122;
British Patent No. 621 339. 1 sheet of drawings 409 510/197 2.64 © Bundesdruckerei Berlin