EP1754666A2 - Chain of bags and a bag dispenser - Google Patents

Abstract

The string of bags is made up of bags with handles (30, 32) which can be tied into a knot. These are folded inwards longitudinally so that each bag forms a narrow strip. The tops (24', 26') of the handles of each bag are releasably attached to the base (18') of the bag above. An independent claim is included for a bag dispenser using strings of bags as described.

Description

The present invention relates to a bag string, in particular a knot bag strand, and a bag dispenser, in particular a node bag dispenser. The present invention particularly preferably relates to a knot bag dispenser according to the invention comprising a knot bag strand according to the invention.

Knot bag dispensers and knot bag strands are well known to those skilled in the art and are often used in vegetable and fruit departments of wholesale markets or butchers for the packaging of sausage and meat products. These bags are mostly made of plastic and are either blocked or in the form of a wound endless roll. Blocked strands can, as in the DE 298 12 818 U2 described, folded in Z-shape present in a bag dispenser. A particularly small-sized and thus practical to handle and easy to store dispenser is obtained when the trained on the top of the dispenser grip recess is formed continuously to a lower edge, which is opposite the splinted edge strip of an inner package, and on the lower edge to both sides extending, emanating from the handle recess column in the region of the adjacent narrow side and / or top are formed as a passage for a bag to be pulled out. In this way one can easily remove the bag dispenser in the longitudinal direction Z-shaped bag. The geometric specifications are to be observed within narrow limits, in order to still achieve the desired result when removing.

Web-wound material is often mounted in extraction housings mounted on a pivot axis. According to the DE 32 09 056 A1 the roller axles can be detachably mounted on the housing cover. Further, a cutable about a vertical axis, resilient rocker is provided with a tear strip for cutting the sheet material. These constructions to ensure proper tearing off is very expensive and requires a high level of maintenance.

In order not to unnecessarily remove many bags from a bag dispenser device, the DE 44 03 837 A1 in that the bags connected in a band or strand between a support roller and the dispensing slot wrap around a tact roller. This construction is complex and also requires professional filling.

To facilitate the handling of wound on rolls of plastic bag strands is in the DE 692 31 014 T2 discloses a dispenser equipped with a separator for separating a bag from a continuous band of bags. Here, a finger adjacent to a tongue for engaging with a slot in the parting lines between the bags is arranged such that a gap is formed between the tongue and the finger. This gap is arranged to receive a portion of a second bag adjacent the bag to be separated and to hold that portion.

In the DE 695 08 260 T2 For example, there is described a bag dispensing device having a receptacle comprising a bottom, a pair of opposing sides, and a separator for engaging in the line of separation of adjacent plastic bags. With the help of a Selbsteinfädelungseinrichtung and a mounting bracket can be prevented that the bag roll over during removal.

A cylindrical dispensing device goes out of the EP 558 322 A1 out. In this case, the issue slot is not completely released. Rather, the middle portion of the upper edge of the dispensing opening overlaps in the shape of a tongue with the lower edge and can be clamped behind this. In this way remain on the opposite sides of the dispensing slot openings through which, for example, the carrying straps of a knot bag can be performed. By depressing the tongue, the dispensing slot is released. In its original state, the tongue presses the knot pouch against the inner wall of the lower tear-off edge.

The DE 37 03 757 OS describes how to provide a bag of thermoplastic film with top flap and gussets with high fill volume. For this purpose, the upper flap by extending the back of the bag as well as on both sides formed the back subsequent leg of the gussets against the front. The bags can hang in the chain assembly together, the back and the adjoining the back on both sides leg of the gussets in the longitudinal extent and the upper flap is provided in the adjacent to the weld of the preceding bag area with a tear line perforation.

The devices described above are still very expensive in terms of apparatus, sometimes not readily refilled and maintenance-intensive. Also, unnecessary unrolling, especially when the supply on the roll of bags tends to end, can not always be readily prevented. For reasons of cost therefore still very simple apparatus dispensing devices is given preference. Often bag rolls are simply placed on inclined unrolling mandrels. The fact that this product is obtained in not insignificant amounts, is accepted accepting. However, even the conventional, mechanically complex designed dispensers for knot-bag strands in the bag material used today no longer guarantee proper tearing off. Since the aim is to reduce the total weight of bag rolls in order to reduce costs, the bag walls are increasingly thinner. In case of improper tearing, i. For example, inappropriate application of force, the bags often do not tear at the designated tear seams, resulting in a considerable Produktausschuß.

It would therefore be desirable to be able to resort to bag dispensers for continuous rolls or strands and on such bag strands, which are not associated with the described disadvantages of the prior art. The present invention therefore an object of the invention to provide a bag dispensing device available that is structurally simple and inexpensive to manufacture and ensures ease of use and in particular prevents rolling to the end tipping bag rolls and also no loss in terms of use even when using extremely thin-walled bag materials on the handling reliability entails. Furthermore, the present invention was based on the object to provide a bag string comprising a plurality of mutually paired bags available that can be stored and transported to save space, go back to very thin-walled film material and still guarantee a safe and committee-free tearing off, even with uneven application of force.

Accordingly, a bag string has been found comprising in pairs via their lower and upper edges connected first, second and third bags each having a front and a back, each having an upper edge, two opposite side edges and a lower edge, wherein the front - And the back are at least partially connected to each other at least along corresponding side and bottom edges, each opposing first and second side edge portions of the first, second and third bag inwardly toward the longitudinal axis of the bag taken on the front and / or back wherein the upper edge of the front and / or back of a second bag is at least two spaced first and second portions each releasably connected to the lower edge of a first bag to form a passage opening and wherein the upper edge of the front and / or Back egg a third bag is detachably connected to the lower edge of the second bag at at least two spaced apart first and second portions.

In a preferred embodiment, it is provided that the objectively disaggregated first and second sections of the upper edge of a bag that are detachably connected to the respective lower edge have a width that does not exceed the width of the embossed first and second side wall regions of the adjacent bag.

Particularly satisfactory results are also achieved in that the first portion of the upper edge of a bag with the lower edge of the embossed first side wall portion of the adjacent bag and the second portion of the uppermost edge of the bag with the lower edge of the second side wall portion of the adjacent bag detachably connected is.

In this case, it may further be provided that the first section extends at most over the width of the embossed first side wall region and / or that the second section at most extends over the width of the embossed second side wall region.

The object underlying the invention is further achieved by a bag string, comprising in pairs via their lower and upper edges interconnected first, second and third bags each having a front and a back, each having an upper edge, two opposite side edges , a lower edge and two spaced, extending from the upper edge first and second carrying loops, wherein the front and the back at least along korrespondiereichsweise are interconnected, wherein each opposing first and second side wall portions of the first, second and third bag inwardly in the direction of the longitudinal axis of the bag taken on the front and / or back present, the first and second loops of the second bag each releasably connected are connected to the lower edge of the first bag and wherein the first and second carrying loops of the third bag are detachably connected to the lower edge of the second bag.

Of course, the bag cords of the present invention may include a plurality of pairs of adjacent bags which, like the first, second and third bags, are each releasably connected to one another via adjacent upper and lower edges.

In a particularly expedient embodiment, the front and back of at least one bag, in particular all bags are made in one piece.

Furthermore, it can be provided that at least one bag has an inwardly folded gusset on each side edge.

Another embodiment provides that the releasable connection between adjacent bags comprises a perforated seam.

According to a further aspect of the invention, the outer end of the first and / or second carrying strap is releasably connected to the lower edge of the embossed first and second side wall portion.

It can be provided that the width of the first and / or side wall portion comprises at least the maximum width of the first and second strap loop.

Another embodiment contemplates that the first and / or second carrying loops of a bag extend to the first and second side edges, respectively.

The bag strands according to the invention are preferably wound up in the form of a roll of bags. The center of this bag roll is preferably kept free to receive an axis of rotation which carries the bag roll and about which the roll of bags can be unrolled. Alternatively, the bag string according to the invention can also be a folded bag string in which the back of the first bag with the back of the second bag and the Front of the second bag with the front of the third bag comes to rest and wherein the folding direction changes at the bag transition.

The object underlying the invention is further achieved by a bag dispenser comprising a pad or support device for a bag string in the form of a wound roll, a front withdrawal edge, a tear-off in the area before and / or above the withdrawal edge, suitable for engaging in a Passage opening between two adjacent bags of the bag string, a rotation axis and two opposing side walls, each having a guide device for the axis of rotation for at least one wound bag roll, said guide devices extend substantially in the same direction and wherein an upper portion of the guide device respectively further away from the Padding and / or the front removal edge is as a lower or lower lying area.

It can be provided that the guide device is a guide rail or a slot in the side wall.

Preferably, the guide means is made substantially straight in a side wall and assumes an angle in the range of 25 to 75 °.

The guide devices preferably extend substantially into the area of the underlay or abutment device. The distance between the lower end of the guide device is usually chosen in such a way that the wound up to almost or to the end bag roll still rests on the backing device or at least touched. In this way it can be ensured that the bag string permanently creates a certain peel resistance when pulled off by its own weight due to friction.

In a particularly preferred embodiment, the axis of rotation is captively connected to a side wall, in particular the guide device of this side wall. This succeeds, for example, in that only one axle end of the rotation axis can be removed without destruction from a guide device, preferably only in a section of the guide device. For example, both opposite ends of the axis of rotation relative to the axis itself may be made thickened and present on the outside of the corresponding side wall, while the axis of rotation itself is guided in a guide slot which is smaller than the diameter of the thickened ends. This guide slot can be enlarged, for example, on a side wall in the upper region, so that only at this point, the thickened axle end can be passed. In this way, the axis of rotation still remains captive connected to the bag dispenser, but at the same time allows to replace a completely unwound bag roll with a new one.

Bag dispensers according to the invention may further comprise an upper cover.

Of course, the bag dispenser according to the invention can be mounted on a particular height-adjustable stand. As far as the bag dispenser according to the invention allow a particularly narrow design, it is readily possible to mount on conventional stands, as used in wholesale markets, for example in vegetable departments, two, three or even four bag dispenser according to the invention side by side.

The tear-off device of the bag dispenser according to the invention is preferably designed as a tear-off mandrel.

According to a particularly preferred aspect, the bag dispenser according to the invention, in particular node bag dispenser, likewise comprises a bag string according to the invention, in particular a knot bag strand according to the invention.

In a further preferred embodiment, in the bag dispenser according to the invention, the bag string present as a wound bag roll is in such a way on the axis of rotation that when removing a bag, the bag string from the rear, over the middle in the direction of the front portion of the pad or support device movable is. In this way, the bag string is not handled from above, but coming from below. For this it is generally necessary that the unwound bag string must be raised so that the tear-off can be inserted into the passage opening.

The present invention was based on the surprising finding that bag strands whose opposite side wall areas are embossed on the front or back side of the respective bag and are connected in sections to form a passage opening via the upper and lower edges of adjacent bags, in an unforeseen way in stability win. This makes itself especially when tearing off a rolled-up bag string according to the invention noticeable. Even extremely thin-walled bag materials can be used without problems. Regardless of the type of application of force there is always a tearing of the bag at the designated breaking points. An improper tearing is not observed, just as tear the bag walls on one or the connecting seams from the front and back. By using extremely thin-walled bag materials, the weight of endless bag reels can be considerably reduced compared to conventional endless bag reels. Moreover, allows the narrower embodiment of the bag roller strands due to the embossed side wall areas a very compact storage and space-saving transport. Above all, it is advantageous that the effects described above occur with the rollers according to the invention, regardless of the width of the bags used. Thus, even very wide strings of bags can be easily transported and used safely.

Furthermore, it has been put forward that the bag dispenser according to the invention, regardless of how many bags have already been handled by a bag string, can always be operated properly. Due to the guidance of the axis of rotation in guide rails or slots, the bottom of the bag string is always on the base of the bag dispenser. Due to the weight of the wound-up bag strand, there is no longer any rolling of bag rolls, in which the bag supply tends towards the end. The bag dispenser according to the invention allows this preference to structurally extremely simple manner and is also maintenance-free. In particular when using the bag strands according to the invention in combination with the bag dispenser according to the invention, an extremely user-friendly product is obtained.

Figur 1a

einen Beutel eines erfindungsgemäßen Beutelstrangs im ungefalteten Zustand;

Figur 1b

den Beutel gemäß Figur 1a in gefaltetem Zustand;

Figur 2

einen erfindungsgemäßen Beutelspender;

Figur 3

einen erfindungsgemäßen Beutelspender samt erfindungsgemäßem Beutelstrang; und

Figur 4

einen Ausschnitt eines erfindungsgemäßen Beutelspenders mit einem erfindungsgemäßen Beutelstrang.

Further details and advantages of the present invention will be described in detail with reference to the following figures. Show in it

FIG. 1a

a bag of a bag string according to the invention in the unfolded state;

FIG. 1b

the bag according to Figure 1a in the folded state;

FIG. 2

a bag dispenser according to the invention;

FIG. 3

a bag dispenser according to the invention together with the bag string according to the invention; and

FIG. 4

a detail of a bag dispenser according to the invention with a bag string according to the invention.

FIG. 1a shows a second bag 4 'of a bag string 1' according to the invention (not shown) in the unfolded state. The bag 4 'has a front 8' and a back 10 'and opposite side edges 14' and 16 ', a lower edge 18' and an upper edge 12 '. From the upper edge 12 ', a first and a second carrying strap 30 and 32 extend. These carrying loops are located respectively at the lateral edge regions 20', 22 'of the bag 1'. The outer side edges of these carrying loops accordingly constitute the straight line extension of the side edges 14 'and 16'. The outer upper ends 34 and 36 of the first and second carrying loops 30 and 32 each have a first and a second section 24 'and 26', respectively. via which a detachable connection, for example in the way of perforation, to the underside of an adjacent first bag 2 'takes place. In the same way are at the bottom of the bag 4 'sections 24' and 26 'before, via which the connection to the carrying straps, or their outer ends 34 and 36 of an adjacent third bag 6', preferably again via perforation occurs. These connecting sections at the lower edge are also mounted in the region of the outer side edges.

FIG. 1b shows the bag 4 'according to FIG. 1a in the folded state. That the side wall portions 20 'and 22' of the bag 4 'have been wrapped inwardly towards the longitudinal axis of the bag on the front side 8'. In this case, the width of the embossed side wall portion 20 'and 22' is slightly above the width of the first and second support strap 30 and 32. Preferably, the two side wall portions 20 'and 22' are moved toward each other so far that their outer edges substantially closely adjacent to each other lie.

FIG. 2 shows a bag dispenser 50 or bag dispenser device 50 according to the invention, attached to a stand 72. The side walls 58 and 60 each have a guide device 62 or 64 in the form of a straight, obliquely downwardly running guide slot. The angle at which these guide slots are inclined is about 45 °. The guide slots 62 and 64 receive the axis of rotation 66. Their diameter is in Generally slightly smaller than the width of the guide slots 62 and 64. Only in the upper region of the guide slot 64 of the side wall 60, this guide slot spreads to a degree sufficient to pass the thickened end of the axis of rotation 66. In this way, the rotation axis 66 can be removed from its working position and provided with a new wound bag string. The support 52 includes a front, rear and middle part. A wound up on the rotation axis 66 wound bag string (not shown) is due to its own weight and due to the far down on the sides reaching guide slots 62 and 64 on the middle part of the support device 52.

If, for example, a bag string 1 'according to the invention containing a multiplicity of adjacent bags with laterally attached carrying loops is used in a wound-up form, such a roll is preferably placed in a bag dispenser 50 according to the invention as shown in FIG. The axis of rotation is located approximately in the middle part of the guide devices 62 and 64, respectively. The bags to be taken are brought from below to the front removal edge 54. At the removal edge 54, the direction of movement of the bag to be removed is reversed. The passage opening 28 'formed between the carrying loops 30 and 32 allows the tear-off mandrel 56 to engage. The top cover 70 protects the rolled up bag-string 1' from being torn from the bag-dispenser 50 when the tensile load is too high.

Alternatively, it is of course also possible that the wound-up bag-string 1 'is inserted into the bag dispenser 50 in such a way that the bags pass from above the removal edge 54. However, it has been found that reliable tearing succeeds even better in the first described embodiment. This tear-off process is illustrated in FIG. The bags separated at the perforated sections otherwise show no damage. The remaining in the bag dispenser device 50 bag can now be pulled over the tear-off mandrel 56 to the next passage opening 28 ', in which then this tear-off again engages. As can be seen from the preceding figures, the bag dispenser device 50 according to the invention can be made very narrow.

The features of the invention disclosed in the foregoing description, in the claims and in the drawings can be used individually as well as in any combination be essential for the realization of the invention in its various embodiments.

Claims (25)

A bag string (1) comprising in each case in pairs via their lower and upper edges connected first, second and third bags (2, 4, 6) each having a front and a back (8, 10), each having an upper edge (12) , two opposite side edges (14, 16) and a lower edge (18), wherein the front and the back (8, 10) at least along corresponding side and bottom edges (14, 16, 18) at least partially interconnected are, wherein each opposite first and second side edge regions (20, 22) of the first, second and third bag inwardly in the direction of the longitudinal axis of the bag taken on the front and / or back (8, 10) are present, the upper edge (12) the front and / or back (8, 10) of a second bag (4) at least two spaced first and second portions (24, 26) each releasably connected to the lower edge (18) of a first bag (2) is under education a passage opening (28) and wherein the upper edge (12) of the front and / or back (8, 10) of a third bag (6) at least two spaced first and second portions (24, 26) releasably connected to the lower edge ( 18) of the second bag (4) is connected. Bag-string (1) according to claim 1, characterized in that
the spaced first and second sections (24, 26) of the upper edge (12) of a bag releasably connected to the respective lower edge (18) each have a width which does not exceed the width of the embossed first and second sidewall regions (20, 22 ) of the adjacent bag. Bag string (1) according to claim 1 or 2, characterized in that
the first portion (24) of the upper edge (12) of a bag with the lower edge (18) of the embossed first side wall portion (20) of the adjacent bag and the second portion (26) of the upper edge (12) of the bag with the lower edge (18) of the second side wall portion (22) of the adjacent bag is releasably connected. Bag-string (1) according to one of the preceding claims, characterized in that
the first portion (24) at most over the width of the embossed first side wall portion (20) and / or that the second portion (26) extends at most over the width of the embossed second side wall portion (22). Bag string (1 ') comprising in each case in pairs interconnected first, second and third bags (2', 4 ', 6') each having a front and a back (8 ', 10'), each having an upper edge (12 '), two opposing side edges (14', 16 '), a lower edge (18') and two spaced, from the upper edge (12 ') extending first and second support loops (30, 32), wherein the front - And the back (8 ', 10') at least along corresponding side and bottom edges (14 ', 16', 18 ') are at least partially interconnected, each with opposing first and second side wall portions (20', 22 '). of the first, second and third bags (2 ', 4', 6 ') inwards towards the longitudinal axis of the bag wrapped on the front and / or back (8', 10 ') are present, the first and second carrying loops ( 30, 32) of the second bag (4 ') are each releasably connected to the lower edge (18') of the first Bag (2 ') and wherein the first and second carrying loops (30, 32) of the third bag (6') are releasably connected to the lower edge (18 ') of the second bag (4'). A bag-string (1, 1 ') according to any one of the preceding claims, comprising a plurality of pairs of pouches detachably connected together like the first, second and third pouches (2, 2', 4, 4 ', 6, 6') adjacent upper and lower edges (12, 12 ', 18, 18') are connected. Bag-string (1, 1 ') according to one of the preceding claims, characterized in that
the front and back (8,8 ', 10,10') of at least one bag is made in one piece. Bag-string (1, 1 ') according to one of the preceding claims, characterized in that
at least one bag on each side edge (14, 14 ', 16, 16') has an inwardly folded gusset. Bag-string (1, 1 ') according to one of the preceding claims, characterized in that
the releasable connection between adjacent bags comprises a perforated seam. A bag-string (1 ') according to any one of claims 5 to 9, characterized in that the outer end (34, 36) of the first and / or second carrying loop (30, 32) is connected to the lower edge (18') of the inserted first one or second side wall region (20 ', 22'). Bag-string (1 ') according to claim 10, characterized in that
the width of the first and / or side wall region (20 ', 22') comprises at least the maximum width of the first and second carrying strap (30, 32). Bag-string (1 ') according to one of claims 5 to 11, characterized in that the first and / or second carrying loops (30, 32) of a bag extend as far as the first and second side edges (14', 16 '). Bag-string (1, 1 ') according to one of the preceding claims, characterized in that
this represents a wound bag roll. A bag-string (1, 1 ') according to any one of claims 1 to 12, characterized in that it constitutes a folded bag-strand, in which the rear side (10, 10') of the first bag (2, 2 ') is connected to the rear side (10, 10'). 10 ') of the second bag (4, 4') and the front side (8, 8 ') of the second bag (4, 4') with the front side (8, 8 ') of the third bag (6, 6') for conditioning passes and wherein the folding direction changes at the bag transition. A bag dispenser (50) comprising a backing or support device (52) including front, middle and rear portions for a wound-roll bag string, a front extraction edge (54), a tear-off device (56) in the region in front of and / or or above the withdrawal edge (54) adapted to engage a passage opening between two adjacent bags of the bag string, an axis of rotation (66), and two opposing side walls (58, 60), each through a rotation axis guide means (62, 64) (66) for at least a wound bag roll, these guide devices (62, 64) extending substantially in the same direction and wherein an upper portion of the guide device (62, 64) in each case further away from the support device (52) and / or the front removal edge (54 ) is considered a lower region. Bag dispenser (50) according to claim 15, characterized in that
the guide device (62, 64) constitutes a guide rail or slot in the side wall (58, 60). Bag dispenser (50) according to claim 15 or 16, characterized in that
the guide device (62, 64) in a side wall (58, 60) is substantially rectilinear and assumes an angle in the range of 25 to 75 °. Bag dispenser (50) according to one of claims 15 to 17, characterized in that the axis of rotation (66) is captively connected to a side wall (58, 60). Bag dispenser (50) according to one of claims 15 to 18, characterized in that only one axle end (68) of the rotation axis (66) can be removed without destruction from a guide device (62, 64), preferably only in a section of the guide device (62, 64 ). The bag dispenser (50) of any one of claims 15 to 19, further comprising a top cover (70). Bag dispenser (50) according to one of claims 15 to 20, further comprising a stand (72) for, in particular height-adjustable, attachment of the bag dispenser. Bag dispenser (50) according to one of claims 15 to 21, characterized in that the tear-off device (56) is designed as a tear-off mandrel. Bag dispenser (50) according to one of Claims 15 to 22, characterized in that the guide devices (62, 64) extend substantially into the region of the underlay or abutment device (52). Bag dispenser (50) according to one of claims 15 to 23, further comprising a bag string (1, 1 ') according to claim 13 or 14. Bag dispenser (50) according to claim 24, characterized in that
the bag string (1, 1 ') in the form of a wound-up roll of bags is in such a manner on the axis of rotation (66) that, when a bag is removed, the bag string moves from the rear, through the middle towards the front region of the pad or support device (52 ) is movable.

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