DE4335970A1 - Foil bag pack with foil bag and bottom part - Google Patents

Description

The invention relates to a foil pouch, in particular for mortar compositions at least one foil bag, on one end of which a bottom part is arranged, the bottom part of an open to the film bag in an outlet has opening passage for the mortar mass.

Hardening compounds, including mortar compounds, are in single or multi-component form known. Such compositions can be used as fillers, sealants, adhesives and the like can be used.

In the case of the use of adhesive compositions, it is particularly common to use mortar compositions Fixing fasteners to use. In such cases, a Fastening element in a recess in rock, concrete, masonry and The like set such that the remaining space between Fastener and recess is filled with mortar. It can are single or multi-component mortar compounds.

The recesses to be fed, for example in accordance with the aforementioned manner Mortar mass is stored in containers, the squeezing out of these Containers happens on site. For this purpose, squeezing devices are known which the containers are fed to. After emptying one Container, the squeezer must be provided with a new container.

Especially when fixing fasteners in the aforementioned sense the amount of mortar used for consumption is relatively large, since it is is about having enough recesses for the fasteners Fill mortar compound. According to the large amount of required Mortar mass, the number of containers used is also quite large. So Disposal problems arise particularly when it comes to containers in Cartridge shape made of solid material, such as plastic. The empty ones  Containers require a lot of space and are also very difficult to remove.

For this reason, mortar masses are also used as containers for holding Foil bags become known. Such foil bags can be emptied compress to a small volume so that the storage of the empty Foil bags take up an extremely small amount of space. There are also foil bags also relatively easy to remove.

The disadvantage of the film bag, however, is that it is an inherent one is not a rigid container. This creates problems in particular with the Storage and processing in extrusion equipment. So it has become known To provide a plastic bag with a bottom part, as for example from EP-A 0 151 922 is known. Thanks to the use of such a bottom part, the Insert the foil bag in a squeezer and provide it with a pouring spout, which can be connected to an outlet connection arranged on the base part, like this also shows EP-A 0 151 922.

However, there is a problem with the use of such foil bags in a timely and not polluting, the exit of the Ensure that the foil pouches allow the opening of the mortar. In particular, must be guaranteed that the exit of the mortar mass when pressing the Foil bag is not hindered by the squeezer. So are relatively expensive Piercing devices have become known, such as US Pat. No. 3,767,085 shows. Such piercing devices can easily clog and the exit of the Mortar mass hinder, provided they are not properly maintained and cleaned be subjected.

When using multi-component mortar compounds, for example Two-component mortar compositions, there is also the requirement that an opening all foil bags are done simultaneously and the opening throughout The squeezing process of the foil bag of each component is sufficiently maintained becomes. This is the only way to achieve a sufficient mix and the associated mode of action the mortar masses guaranteed.

The invention has for its object a film bag package consisting of To create foil bags and bottom part, which is a flawless and problem-free, not processing of the filled masses leading to contamination is made possible.  

According to the invention the object is achieved in that the bottom part free-standing spade pointing towards the foil bag.

The spade arranged on the bottom part ensures that the foil bag on the opened in the right place and in a sufficient manner. The fact that the Spade against the front of the foil pouch, this is only on the Bottom part covered front side opened. Contamination of the application Squeezing device can therefore not occur.

To ensure that the opening created by the spade in the foil bag in the The area of the passage channel leading to the outlet connection is more preferred Way of the spade adjacent to the passage channel. Because of that comes the opening made by the spade in the foil bag seen in the squeezing direction in immediate projection to the passage channel. The mass does not have to time-delaying and thus possibly leading to hardening detours return. In addition, the resulting direct exit option means that Mass from the outlet nozzle a contamination of parts of the application expressing device found.

The free-standing length of the spade is preferably designed in such a way that that this extends at least to the front of the film bag. The face comes more or less towards the free end of the spade lie. This ensures that the foil bag is not yet at rest is pierced that this piercing is then sufficiently guaranteed, if, as a result of the pressure generated by the pressing device used, the foil bag towards the bottom part and thus also towards the free end of the Spade is deformed.

After the known and also according to the present invention application Finding foil bags are closed in their center on both faces, offers open the foil bag between the center and the outside diameter lying area of the face. To ensure that this area from Is reached, this is preferably outside the center of the Foil bag arranged. In a special way, the spade is about a quarter of the outside diameter of the foil bag is arranged outside the center of what leads to the free, available space of the front of the Foil bag is used in full.  

In a known manner, when the film bag is closed, it forms on it Wrinkles running radially from the center towards the outside diameter. To a Ensure proper opening of the foil bag on its front side ensure that these folds are severed, which is sufficient with only one transversely to the cutting direction can take place. To the relevant To ensure the cutting direction is expediently the perpendicular to Longitudinal axis of the foil pouch standing cross-section of the spade rectangular formed, the arrangement of the having a rectangular cross section Stab is also such that the shorter axis of symmetry of the cross section runs radially to the center of the foil pouch.

The spade is preferably dimensioned in such a way that it has a plurality of radial can at the same time cut running folds of the foil bag on its end face. To ensure this, the long side corresponds to the cross-section of the spade essentially 0.1 to 0.3 times the outer diameter of the film bag. The profile of the spade is expediently designed such that the Broad side of the cross section 0.1 to 0.3 times the long side of the cross section corresponds. This creates a knife-like shape of the spade, the Cutting direction, as already mentioned above, transverse to the folds on the end face of the foil bag runs.

In order to ensure the opening of the foil bag further, tapers in preferably the free end face of the spade to both axes of symmetry of the cross-section roof-shaped. As a result, the free end face has a roof-like shape on all sides Contour both in the top view of the spade on its broad side and on its narrow side.

As pointed out in the introduction, there are problems with both Use of single and multi-component materials. The Advantages of the invention, that is, the use of the spade according to the invention thus eliminates the disadvantages of both single and multi-component materials.

If it is a multi-component mass, one of the numbers is found necessary components appropriate number of foil bags application. in the In the case of a two-component mortar, two foil bags are used.  

To the simultaneous and when using a two-component mortar According to another, ensuring that both foil bags are adequately opened Embodiment of the invention provided that two foil bags and two interconnected base pieces each having a spade application Find. Since with such a mortar mass, the one film bag usually contains the resin and the other foil pouch containing the hardener are from the individual Components required for mixing different amounts. To also a To ensure such an uneven mixing ratio, it is known that To provide foil bags with different outer diameters. Also at the present invention can be applied to such foil bags by the Bottom pieces matched to the outside diameter of the foil bag accordingly and are connected. Each bottom part has its own spade according to the dimensioning explained above.

In the case of base pieces and foil bags of different diameters also show the spades have different cross sections, in this regard in particular the Long side of the rectangular cross-section is to adjust to the severing ensure that there are enough folds in the front of the foil pouch.

The invention will now be described by way of example with reference to drawings explained. Show it:

Figure 1 is a film bag pack according to the invention, partially cut.

FIG. 2 shows a plan view of the bottom parts of the film bag pack according to FIG. 1;

Fig. 3 is a view according to arrow A of a detail of Fig. 2;

Fig. 4 is a view according to arrow B of a detail of FIG. 2.

In particular, Figs. 1 and 2 show a foil bag package, for example for a two-component mortar composition. The film bag package thus consists of two film bags 1 , 2 , on the one end face 1 a, 2 a of which a bottom part 3 , 4 is arranged, the bottom parts 3 , 4 being integrally connected to one another.

The film bags 1 , 2 shown by way of example in the present case have different volumes. The film bag 1 with a larger volume is accordingly provided, for example, for the resin and the film bag 2 with the smaller volume, for example for the hardener. The difference in volume arises from the fact that the outside diameter of the film bag 2 is smaller than the outside diameter of the film bag 1 .

In the area of the end face 1 a, 2 a, the foil bags 1 , 2 are each closed by a closure clip 1 b, 2 b. Because of this closure, a radially extending folds 1 c, 2 c are formed on the end face 1 a, 2 a of both foil bags 1 , 2 .

Referring particularly to Fig. 1 further shows, 2 are integrally connected to each other bottom parts 1, each have a passage channel 5, 6 which terminate in one, the two bottom parts interconnected 3, 4 associated outlet stub 7.

Both base parts 3 , 4 are each provided with a spade 8 , 9 . These spades 8 , 9 point with their free end to the foil bags 1 , 2 and have such a length that they come into contact with the end face 1 a, 2 a of the foil bags 1 , 2 . The spades 8 , 9 are arranged adjacent to the passage channels 5 , 6 . In addition, the piercing spades 8 , 9 , which have a rectangular cross section, are arranged such that the shorter axis of symmetry of the rectangular cross section runs radially to the center of the film bags 1 , 2 . As a result, the main extent of the cross section of the spades 8 , 9 is essentially transverse to the folds 1 c, 2 c of the foil bags 1 , 2 .

As particularly Figs. 3 and 4, the lancing Paten 8, 9, roof-shaped and that both symmetry axes of the cross section taper towards. This results in ridge lines 8 a, 8 b, 9 a, 9 b running along both axes of symmetry of the cross section, these two ridge lines 8 a, 8 b, 9 a, 9 b also tapering in a roof shape.

Due to the aforementioned embodiment of the spades 8 , 9 , optimal conditions are created for opening the foil bags 1 , 2 when their end faces 1 a, 2 a are pressed to an increased extent on the free ends of the spades 8 , 9 by the pressure applied by means of an extrusion device . The tip 8 c, 9 c forming on the spades 8 , 9 thanks to the double roof-shaped taper pierces the foil bags 1 , 2 and the cutting edge formed by the ridge line 8 a, 9 a running along the longer plane of symmetry separates the end faces 1 a, 2 a of the foil bag 1 , 2 further. Since this cutting edge runs transversely to part of the folds 1 c, 2 c of the film bags 1 , 2 , these folds 1 c, 2 c are cut transversely to their direction of folding. So there is no possibility that the end faces 1 a, 2 a give way by stretching the folds 1 c, 2 c and can thus counteract a perfect separation.

After separating the end faces 1 a, 2 a transverse to the folds 1 c, 2 c, the deformations formed when folding the end faces 1 a, 2 a can recede, which means that the opening produced by the spades 8 , 9 at least remains sufficiently open and tends to enlarge due to the regression. A hindrance in the exit of the mortar mass from the foil bags 1 , 2 cannot occur during the entire course of the emptying of the foil bags 1 , 2 . Advantageous conditions both when piercing the foil bags 1 , 2 and when maintaining the opening occur when the ridge line 8 a, 9 a of the piercing spades 8 , 9 running along the longer axis of symmetry of the cross section is at an apex angle C, D of 130 ° to 140 °, especially 136 °, tapered. The ridge line 8 b, 9 b, which runs along the shorter axis of symmetry of the cross section, tapers at an apex angle that ranges from 50 ° to 60 °, an angle of 53 ° preferably being used.

As shown in FIGS. 1 and 2 further show, the bottom parts 3, 4 with a recess 3a, 4a are provided. This depression serves to accommodate the clips 1 b, 2 b serving to seal the foil bags 1 , 2 . In addition, the outlet connection 7 assigned to the two interconnected base parts 3 , 4 has a thread 7 a. This thread 7 a is used for placing a pouring spout is known per se and therefore not shown in the drawing. For axial limitation when placing this pouring spout, the outlet nozzle 7 also has a stop 7 b.

Since the entire film bag package is a disposable part, the bottom parts 3 , 4, which are connected to one another, and the outlet connection piece 7 are preferably formed from a plastic. The entire film bag package is thus made of plastic, which simplifies its removal, since both the film bags 1 , 2 and the base parts 3 , 4 are recyclable materials that are subject to uniform regulations.

Claims (10)

1. Foil bag pack, in particular for mortar compositions with at least one foil bag ( 1 , 2 ), on the one end face ( 1 a, 2 a) of which a bottom part ( 3 , 4 ) is arranged, the bottom part ( 3 , 4 ) forming a foil bag ( 1 , 2 ) has a passage channel ( 5 , 6 ) for the mortar compound that opens into an outlet nozzle ( 7 ), characterized in that the base part ( 3 , 4 ) has a free-standing piercing spade (facing the foil bag ( 1 , 2 )) 8, 9 ). 2. Pack according to claim 1, characterized in that the spade ( 8 , 9 ) is arranged adjacent to the passage channel ( 5 , 6 ). 3. Pack according to claim 1 or 2, characterized in that the spade ( 8 , 9 ) up to at least the end face ( 1 a, 2 a) of the film bag ( 1 , 2 ). 4. Pack according to one of claims 1 to 3, characterized in that the spade ( 8 , 9 ) is arranged outside the center of the foil bag ( 1 , 2 ). 5. Pack according to claim 4, characterized in that the spade ( 8 , 9 ) is arranged about a quarter of the outer diameter of the film bag ( 1 , 2 ) outside its center. 6. Pack according to one of claims 1 to 5, characterized in that the perpendicular to the longitudinal axis of the film bag ( 1 , 2 ) standing cross section of the spade ( 8 , 9 ) is rectangular, the shorter axis of symmetry of the cross section radially to the center of the film bag ( 1 , 2 ) runs. 7. Pack according to claim 6, characterized in that the long side of the cross section of the spade ( 8 , 9 ) corresponds to 0.1 to 0.3 times the outer diameter of the film bag ( 1 , 2 ). 8. Pack according to claim 7, characterized in that the broad side of the cross section of the spade ( 8 , 9 ) corresponds to 0.1 to 0.3 times the long side of the cross section. 9. Pack according to one of claims 6 to 8, characterized in that the free end face of the spade ( 8 , 9 ) tapers roof-shaped towards both axes of symmetry of the cross section. 10. Pack according to one of claims 1 to 9, characterized in that two foil bags ( 1 , 2 ) and two interconnected, each having a spade ( 8 , 9 ) having bottom pieces ( 3 , 4 ) are provided.