EP1252066B1 - Appliance for accommodating a stack of bags consisting of a multitude of bags made of a plastic film - Google Patents

Description

Technical field

The invention relates to a device for receiving one of a variety of bag made of a plastic film existing bag stack, the under the effect of a spring element on at least one of each bag penetrating suspension opening on at least one free end of a holding arm protruding from a supporting frame or housing the device is so durable that its front bag with its front wall can be brought into a filling position enabling the filling of the bag and the Back wall of the bag in question during the filling of the or the Holding arms are durable and can be detached from the supporting frame after the bag has been filled, the stack of bags being held by the support arm or brackets at least one in the area of at least one Passage opening supported by the support surface or the support arms and the support surface is at an angle (α) to a vertical extending sheet is formed.

State of the art

A device of the type mentioned, for example in a supermarket or the like can be used, goes from the Australian patent 464139 out. In this known device is a substantially vertical frame wall available, which is penetrated by a hollow support arm, which is in the extends substantially horizontally and with its front mouth end in the Extends the area of the foremost bag of the bag stack. Between the Frame wall and the rearmost bag of the stack of bags is a Holding arm surrounding compression spring, which with increasing decrease in bags on the Front of the stack of bags pushes the stack of bags forward. The well-known Establishment has considerable disadvantages, in particular that it is extremely difficult, the air pressure within the support arm and the potency the spring so that they always match the desired one Accuracy the foremost pouch of the stack of pouches into a suitable one for filling Opening position. Rather, there is a risk that by the force of the spring and due to the additional air pressure of the bags also on its back wall from Bag stack or is released from the holding arm, so that there is a risk that the Bag with the contents already filled falls to the floor. Is also filling the Goods in themselves problematic, especially with heavy products, such as glasses etc. is immediately applied to the bottom area, so that the bag relatively strong plastic film must be made. In addition, the Fill goods to tip sideways, which in turn increases the risk of one-sided Detach the back wall of the bag from the dispenser.

A generic device on packaging machines for packing objects in plastic bags is known from German Offenlegungsschrift DE-OS 2 048 816. In this device, the plastic bags collected in a stack are passed through Mounted on a stack support introduced into the device. The stack of bags will then move against a fixed counterhold. The ones fixed in this way Bags can now be opened using an air flow and then filled. To remove the filled plastic bags, they must be removed from the fixation by the fixed counterpart be deducted. The pressing force to fix the bags against the counter support is dimensioned such that the filled bags slightly from Stack can be deducted.

Presentation of the invention

Starting from this prior art, the invention is based on the object one for receiving one of a variety of made from a plastic film Bag existing bag stack suitable device of the type mentioned create an optimal absorption and good support of a stack of bags enables and after opening a bag to fill it quickly and safely guaranteed, especially for cash registers with high throughput in department stores, central sales outlets and the like. In addition, the device is next to one high functionality and good looks.

These objects are achieved in that the one or more holding arms within the carrying frame located end is operatively connected to the spring element, the or the Holding arms is kept under tension under the action of the spring element. In the present invention, the stack of bags is excluded supported by an additional support surface on the or the holding arms, what is particularly simple when the support surface is opposite one Vertical at an angle and at least one of the wall surface of one Bag or a carrier bag corresponding size plate is trained.

Depending on the type of bag or carrier bags to be filled, the vertical can and the base plate included angles are between 25 ° and 60 °, preferably it is 30 ° to 45 °. In the preferred angular positions, one can be particularly achieve safe filling of the bags, because on the one hand the bags open well is achievable and on the other hand a "padded" support of the bag and thus the products to be filled is guaranteed.

Particularly favorable conditions arise when the Layer plate one in a substantially between 90 ° and 120 ° Angled bottom support plate is arranged. This bottom-side Support plate on the one hand ensures that improper handling of the open bag or when the back wall of the bag slides off the holding arm of the filled bag is caught by the support plate, so that sensitive filled Well can not break. This is especially true in the event that the base plate and the support plate adjoining it, possibly via a rounding are formed in one piece.

On the other hand, it has proven to be particularly advantageous if the support plate essentially in the plane of the base plate to adapt to different sizes Bags or carrier bags are adjustable in height in relation to the base plate is trained. The selection or setting of the distance between the or the passage openings in the base plate and their transition to the bottom Support plate makes it possible to fill bags or bags stack, the lower part, especially the bottom area, angled from the base plate in an L-shape to extends the area of the support plate. In this way it is achieved that at Filling the filled products not only to a certain extent on a cushion in the Support the wall area of the individual bags, but also in the bottom area.

In this way, no filling material is guaranteed to be damaged, especially not if the base plate and the support plate are slightly lower than the upper edge of the base plate and the support plate laterally delimiting side walls of the housing. In this case, should bottles or the like tip over to the side a little, so this is not only centered by the indentation resulting in the bag cushion, but against falling out due to the higher side walls secured.

The bags can be unblocked by the holding arm or arms on the device, can be held, for example, via a reinforced handle opening, if, for example, the handle opening is reinforced with an adhesive label is formed or by round suspension openings, which in one Tear strips are arranged over which the individual bags in the bag stack are blocked and from which the bags are torn off during filling.

To ensure that the bags or the stack of bags are held properly in the device, point the holding arms at their free end protruding from the housing Retaining element, for example in the form of a thickened gripper head on. This can be a head plate arranged at the end face and one under spring action have hinged lower grippers. On the other hand, at interlocked bags a clamp holder may be provided, preferably two with At the same time, spaced-apart holding rods forming the holding arms embraces.

At their lower end are the holding arms or holding rods with the spring element in operative connection. This can for example be a leaf spring mounted on one side be formed or also connected as necessary via a traction rope Mainspring. With a suitable actuation mechanism, the Bring the holding arms into a loading position in which the bags can be 500 to 600 pieces can be applied. For easier application, For example, remove the gripper head from the actual holding arm, for example by moving it sideways.

The device according to the invention is particularly suitable for immediate installation or attached to a cash register in a sales outlet with high throughput.

Brief description of the drawing

Figur 1

eine schematische Darstellung einer ersten Ausführungsform (Grundversion A) eines einen Beutelstapel aufnehmenden Gerätes,

Figur 2

eine perspektivische Darstellung des in Figur 1 gezeigten Gerätes in einer Ladeposition,

Figur 3

eine der Figur 2 entsprechende perspektivische Darstellung mit darauf befindlichem Beutelstapel in verkleinertem Maßstab,

Figur 4

einen Teil des Gerätes mit einem Haltearm in vergrößertem Maßstab,

Figur 5

eine abgewandelte Ausführungsform des Haltearms,

Figur 6

eine Einzelheit des in Figur 5 gezeigten Haltearms,

Figur 7

eine erste Modifikation des Gerätes,

Figur 8

eine weitere Modifikation des Gerätes,

Figur 9

eine weitere Modifikation des Gerätes,

Figur 10

eine abgewandelte Ausführung (Grundversion B) des Gerätes in perspektivischer Darstellung in der Ladeposition,

Figur 11

die zu Figur 10 gehörende Darstellung des Gerätes mit Beutelstapel,

Figur 12

eine Einzelheit des Gerätes gemäß Figur 11,

Figur 13

einen Teil des Gerätes im Bereich eines Betätigungsmechanismus,

Figuren 14 und 15

Lösungen einer dritten Grundversion C des Gerätes,

Figuren 16 und 17

perspektivische Darstellungen des Gerätes gemäß den Figuren 14 und 15 mit und ohne Beutelstapel,

Figur 18

eine vergrößerte Darstellung eines Teils des Gerätes gemäß Figur 14,

Figur 19

eine Einzelheit des Gerätes gemäß Figur 14 und

Figuren 20 bis 22

verschiedene Anordnungen des erfindungsgemäß ausgebildeten Gerätes im Bereich einer Ladenkasse.

Preferred embodiments of the invention are shown in the drawing and are explained in more detail below. Show it:

Figure 1

1 shows a schematic representation of a first embodiment (basic version A) of a device receiving a stack of bags,

Figure 2

2 shows a perspective illustration of the device shown in FIG. 1 in a loading position,

Figure 3

2 shows a perspective view corresponding to FIG. 2 with the stack of bags located thereon on a reduced scale,

Figure 4

part of the device with a holding arm on an enlarged scale,

Figure 5

a modified embodiment of the holding arm,

Figure 6

a detail of the holding arm shown in Figure 5,

Figure 7

a first modification of the device,

Figure 8

another modification of the device,

Figure 9

another modification of the device,

Figure 10

a modified version (basic version B) of the device in a perspective view in the loading position,

Figure 11

10 is a representation of the device with a stack of bags,

Figure 12

a detail of the device according to Figure 11,

Figure 13

part of the device in the area of an actuation mechanism,

Figures 14 and 15

Solutions of a third basic version C of the device,

Figures 16 and 17

perspective views of the device according to Figures 14 and 15 with and without a stack of bags,

Figure 18

14 shows an enlarged illustration of part of the device according to FIG. 14,

Figure 19

a detail of the device according to Figure 14 and

Figures 20 to 22

Different arrangements of the device designed according to the invention in the area of a cash register.

Ways of Carrying Out the Invention

In the figures 1 to 3 is a device designed according to the invention of a basic version A shown, which consists of a housing with side walls 2, 3 and an oblique arranged sheet 4 and one adjoining its lower end Support plate 5 is made. In the illustrated embodiment, the inclination is (Angle α) approx. 30 °. The same order of magnitude with approximately 30 ° also has an angle β between the base plate 4 and the support plate 5. The meaning of the angle β becomes explained in more detail below. By a in the upper area of the base plate 4th located passage opening 6, which is delimited by a guide 7, extends a holding arm 8 with a thickened gripper head 9, its importance is also explained below.

At the bottom, d. H. at the end of the holding arm 8 located inside the housing attacks the free end of a spring element, which in the basic version A of one in Housing or a support frame 10 leaf spring 11 is formed on one side. The Leaf spring 11 can together with the holding arm 8 in a solid line shown loading position for one of a variety of plastic bags existing bag stack 12 are positioned. In this loading position the Leaf spring 11 and the holding arm 8 blocked by an actuating mechanism 13, which consists of a support arm 14 which is mounted about an axis 15 and by a Actuator in the form of an adjustment knob 16 from the with extended Lines shown loading position or blocking position in the with dashed lines shown release position can be adjusted. In this release position the holding arm by the action of the leaf spring 11 with increasing decrease in a front bag of the bag stack 12 in the shown with dashed lines adjust lower position. This spring action ensures that the Bag stack for example via a preferably reinforced handle opening, such as it is designated 17 in FIG. 3, is always held securely on the base plate 4. The Distance between the passage opening 6 in the base plate 4 and, if appropriate rounded transition between the lower end of the base plate 4 and the Support plate 5 is denoted by X. The meaning of the distance X is shown below also explained.

As can be seen from FIGS. 2 and 3, the base plates 4 and the support plate 5 are located deeper than the upper edge of the side walls 2 and 3. This ensures that the Bag stack lies securely in or on the base plate 4.

As can be seen from FIGS. 4 and 5, the gripper head 9 of the holding arm 12 an end head plate 18 and also a hinged hinged Lower gripper 19, which is under the action of compression springs 21. In the in the figures 4 and 5, the gripper head 9 is in a position, which he normally takes when the stack of bags is filled. On the other hand, the Holding arm 8 in the loading position. The lower gripper is used to load a stack of bags 19 pressed against the action of the springs 21 on the main gripper, so that the Bags over their preferably reinforced handle opening 17 on the Holding arm can be pushed on. Overall, this way for example, apply 500 to 600 bags. The holding arm is 12 in the loading position by the above-mentioned actuating mechanism on an adjustment movement blocked.

In order to facilitate the loading of the holding arm 8 with bags, the entire Gripper head 9 as shown in Figure 5 are pushed laterally from the holding arm and after be postponed loading, preferably against one Stop 22 on the holding arm 8. A T-slot is suitable for easier transverse movement 23, as indicated for example in Figure 6.

Variations with respect to the spring element are arranged in FIGS. 7 and 8.
In Figure 7, a tension spring 24 is provided, which is articulated on the one hand on the support frame 10 of the housing and is connected to the inner end of the holding arm 8 via a connecting means, such as, for example, a pull rope 25, which is guided around a deflection roller 26 Case is slidably mounted in a guide 7.

In FIG. 8, the leaf spring 11 already mentioned in connection with FIG. 1 attacks a bolt 27 of the holding arm 8.

In Figure 9, the connection between the leaf spring 11 and the holding arm 8 via a Slot connection 28 made.

In a basic version B shown in FIGS. 10 and 11, the angle is α between the vertical and the base plate 4 about 45 °, d. H. the stack of bags lies steeper than in the embodiment according to FIGS. 1 to 3. In FIG Loading position shown, d. H. with the holding arm 8 extended. In FIG. 11 one can see the position of the stack of bags 12, it should be noted that the length of the bags or whose suspension on the holding arm is such that the bags or the stack of bags angled with a lower part, preferably corresponding to a floor area is and extends into the support plate 6. This has the particular advantage that the products to be filled in both in the area of the base plate 4 and Area of the support plate 5 are always filled to a certain extent on a cushion, so that their damage can be excluded with certainty. To the The aforementioned excess length of the bags in relation to the selection or setting of the Taking the device into account in an optimal manner is a solution in FIG shown, after which the support plate 5 with respect to the base plate 4 in its plane in the height is adjustable, as indicated by arrow 29.

Finally, FIG. 13 shows a modified actuation mechanism 13 indicated, namely in such a way that a curve piece 31 in one with extended Lines shown blocking position and in one shown with dashed lines Release position can be pivoted so that the leaf spring 11 either in the Loading position can be held or together with the holding arm 8 in the lower removal position shown with dashed lines can be moved.

Figures 14 to 17 show a basic version C of the device. Here are round receiving openings 32 in located in the bags or in the bag stack 12 one connected to the actual bag via a perforation line 33 Tear strips 34. These round suspension openings are spaced apart arranged and are of appropriately adapted, namely round rod-like Holding arms 8 formed. In contrast to the basic versions A and B are therefore in the basic version C, the individual bags of the loot stack 12 are bolted together. To open and fill in products, the front wall is over the perforation detached from the stack of bags, the products entered and finally the back one Wall of the foremost bag in question of the stack of bags 12 from the tear strip 34 solved. Both in this basic version C and in the basic versions A and B the opening process can also be supported with blowing air become. In the basic version C, the holding arms 8 can either be via a Tension spring 24 - as shown in Figure 14 - or via a leaf spring 11 - as in Figure 15 shown - keep it under tension so that the stack of bags is in a safe position is guaranteed.

From Figure 19 it can be seen that the rod-shaped holding arms 8, of which only one is shown, can be arranged on an angle bar 35, the one End can be blocked or released via the actuating mechanism 13 and that in that an actuating button 36 or a spring action 37 standing locking rod 38 is released.

A retaining element in the form of a clamp holder 39 can be seen in FIG in the manner of a folder clamp holder in a release or in a clamped position can be brought and simultaneously for both rod-shaped holding arms 8, so that the tear strip 34 mentioned above is held securely on the device.

The housing or the base plate 4 and the support plate 5 and the side walls 2 and 3 of the device 10 can be made of sheet metal, for example aluminum sheet, but also be made of plastic. Of course, other materials are also suitable, like wood or the like.

The device 10 according to the invention is expediently located directly in the area a cash register 41, either shown as shown in Figure 20, or to the side of it, as shown in Figure 21. Finally, the invention Device can also be used in duplicate for a common cash register 41, as can be seen from Figure 22.

Carrier bags are also to be understood as bags.

So that the "cushion effect" mentioned above is always retained, the device is already then equipped with new bags if there are still a few bags left on the device are located.

Claims (21)

1. Apparatus for accommodating a bag stack (12) which comprises a multiplicity of bags produced from a plastic film and can be retained under the action of a spring element (11, 24), via at least one hanging opening (17) passing through both walls of each bag, on at least one free end of a retaining arm (8), the free end projecting out of a carrying framework (10) or housing, of the apparatus such that the front wall of the foremost bag can be moved into a filling position, in which the bag can be filled, and the rear wall of the relevant bag can be retained by the retaining arm(s) (8) during filling and can be released from the carrying framework (10) once the bag has been filled, it being the case that the bag stack (12), which can be retained by the retaining arm(s) (8) of the carrying framework (10), can be supported by at least one supporting surface (4), through which the retaining arm or arms (8) pass in the region of at least one through-passage opening (6), and the supporting surface is designed as a bearing plate (4), which runs at an angle (α) in relation to a vertical, characterized in that the retaining arm(s) (8) is/are in operative connection with the spring element (11, 24) by way of its/their end which is located within the carrying framework (10), the retaining arm(s) (8) being retained under stressing under the action of the spring element (11, 24).
2. Apparatus according to Claim 1, characterized in that arranged at the bottom end of the bearing plate (4), said end being located opposite the retaining arm (8), is a base-side supporting plate (5), which runs at an angle (β) of essentially between 90° and 120° in relation to the bearing plate.
3. Apparatus according to Claim 1 or 2, characterized in that the angle (α) enclosed by the vertical and the bearing plate (4) is between 25° and 60°, preferably 30° to 45°.
4. Apparatus according to either of Claims 2 and 3, characterized in that the bearing plate (4) and the supporting plate (5) are formed in one piece.
5. Apparatus according to either of Claims 2 and 3, characterized in that the supporting plate (5), for adaptation to differently sized bags or carrier bags, is designed such that it can be adjusted in height in relation to the bearing plate (4) essentially in the plane of this bearing plate.
6. Apparatus according to either of the preceding Claims 4 and 5, characterized in that it is possible to select the spacing (X) between the through-passage opening or openings (6) in the bearing plate (4) and the bottom transition between the latter and the supporting plate (5).
7. Apparatus according to one or more of Claims 2 to 6, characterized in that the bearing plate (4) and the supporting plate (5) are located at a lower level than top peripheral edges of side walls (2, 3) of the carrying framework (10), said side walls bounding the bearing plate and the supporting plate laterally.
8. Apparatus according to one or more of Claims 1 to 7, characterized in that the through-passage opening (6) in the bearing plate (4) or the retaining arm (8) guided through it corresponds, in cross section, to an essentially central grip hole (17) which is preferably reinforced by an adhesive label and belongs to a bag which is not held in block form in the bag stack (12).
9. Apparatus according to one or more of Claims 1 to 7, characterized in that the through-passage openings (6) in the bearing plate (4) and the retaining arms (8) guided through them are of cross-sectionally essentially round design and correspond, in terms of their dimensions, approximately to the hanging openings in a tear-off strip (34) of each bag, this strip serving for the block formation of the bags in bag stacks (12) and being connected in a releasable manner to the front wall and rear wall of each bag via a tear-off perforation (33).
10. Apparatus according to one of Claims 1 to 9, characterized in that the retaining arm or arms (8) passing through the bearing plate (4) has/have a restraining element (9, 39) in its/their free end projecting out of the carrying framework (10).
11. Apparatus according to Claim 10, characterized in that the restraining element is formed by a thickened gripper head (9) which has a head plate (18) arranged on the end side and also a bottom gripper (19), which is mounted such that it can be swung under spring action (21) in relation to the head plate.
12. Apparatus according to Claim 11, characterized in that the gripper head (9) is designed such that it can be removed from the retaining arm (8), preferably such that it can be displaced transversely up to a stop (22) via a T-groove (23) or the like.
13. Apparatus according to Claim 10, characterized in that the restraining element is formed by a clamping holder (39) which can be tilted over into a clamping position and into a release position and preferably engages simultaneously around two spaced-apart retaining rods which form the retaining arms (8).
14. Apparatus according to Claim 1 or 2, characterized in that the spring element is formed by a leaf spring (11) which is clamped in at one end and is operatively connected to the retaining arm or arms (8) at its free end.
15. Apparatus according to Claim 1 or 2, characterized in that the spring element is formed by a tension spring (24) which has one end articulated in a stationary manner on the carrying framework (10) and has its other end connected, if appropriate via an extension means, e.g. a pulling cable (25) or the like, to that end of the carrying arm (8) which is located within the carrying framework.
16. Apparatus according to one or more of Claims 1 to 15, characterized in that, with the aid of an adjustable actuating mechanism (13), the retaining arm or arms (8), with the spring element (11, 24) acting thereon, can be blocked in the loading position and can be freed for bag removal.
17. Apparatus according to Claim 16, characterized in that the actuating mechanism (13) has an adjusting knob (16, 36) on an outer side of the carrying framework (10), preferably on the side wall (2, 3) thereof.
18. Apparatus according to one or more of Claims 2 to 17, characterized in that the carrying framework (10), in particular the side walls (2, 3) thereof, including the bearing plate (4) and the supporting plate (5), is/are produced from sheet metal, preferably sheet aluminium.
19. Apparatus according to one or more of Claims 2 to 17, characterized in that the carrying framework (10), in particular the side walls (2, 3) thereof, including the bearing plate (4) and the supporting plate (5) is/are produced from plastic.
20. Apparatus according to one or more of Claims 1 to 19, characterized in that an air stream is provided in order to assist the opening of a bag which is to be filled.
21. Use of an apparatus according to one of Claims 1 to 20 as part of a cashdesk (41).

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