Bag, method for the production of a bag and machine system for the production of a bag

Abstract

The invention relates to a bag (10) comprising a front wall (11) and a back wall (12) arranged parallel to the front wall (11), a bottom (13) that can be folded into the plane of the walls (11, 12), such that a filling chamber (14) results that is open on one side, and a pair of carrying handles (31) that is attached on the front wall (11) and the back wall (12). According to the invention, the pair of carrying handles (31) comprises a folding line (15) in the filling space (14), such that the pair of carrying handles (31) can be brought into a usage position (1) and in a rest position (2), wherein in the rest position (2) the pair of carrying handles (31) is entirely folded back inside the filling chamber (14) and in the usage position (1) the pair of carrying handles (31) protrudes at least in certain areas from the filling space (14).

Claims

1. Method for the production a bag, with a front wall and a back wall arranged parallelly to the front wall, a bottom that can be folded into the plane of the walls so that a filling chamber results that is open to one side and a pair of carrying handles that is attached on the front wall and the back wall, wherein: a) Assembly of two carrying elements spaced apart from one another at a translationally moving material web, wherein at the carrying element at least one foldable handle is integrated, b) Tube configuration of the material web so that the material web configures a tube and the carrying elements are lying on top of one another, c) Separation of the material web so that single tube sections result with at least two carrying elements lying on top of one another entirely within the tube, d) Folding of the tube so that at least one bottom results; wherein step d) occurs previous to step c).

2. Method according to claim 1, wherein previous to step b) an opening aid is assembled at the edge of one of both carrying elements.

3. Method according to claim 1, wherein the carrying element comprises two foldable handles which are assembled one behind the other in step a) in the direction of the material web movement.

4. Method according to claim 3, wherein previous to step b) an opening aid is assembled in the centre of one of both carrying elements.

5. Method according to claim 1, wherein the carrying elements which are lying on top of one another according to step b) are aligned and assembled towards one another perpendicular to the material web movement direction during the application on the material web subsequently to step a).

6. Method according to claim 1, wherein that subsequently to step a) or previous to step a) a perforation line is applied to the material web perpendicular to the material web movement direction.

7. Method according to claim 1, wherein that in step d) two bottoms are folded which are opposing one another and subsequently the the configured tube with bottoms and carrying elements is separated in the centre so that two bags result.

8. Method according to claim 1, wherein previous to step a) the carrying element is punched or perforated or lasered in a way that at least one handle results which is foldable from the carrying element.

9. Bag which is produced with a method according to claim 1.

Description

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

(1) Further advantages, features and details of the invention result from the subsequent description in which multiple embodiments are described in detail in relation to the drawings. Thereby, the features described in the claims and in the description can be essential for the invention each single for themselves or in any combination. It is shown:

(2) FIG. 1 a schematic view for the production of a bag,

(3) FIG. 2 a further alternative for the production of a bag,

(4) FIG. 3 a bag with a pair of carrying handles which is completely within the filling chamber of the bag,

(5) FIG. 4 bag according to the invention according to FIG. 3 wherein the pair of carrying handles is outside the filling chamber of the bag,

(6) FIG. 5 a schematic top view of a bag according to the invention,

(7) FIG. 6 a further embodiment of a possible bag,

(8) FIG. 7 a further embodiment of a possible bag, and

(9) FIG. 8 a further embodiment alternative of the bag according to the invention.

DESCRIPTION OF SPECIFIC EMBODIMENTS OF THE INVENTION

(10) In FIGS. 3, 4, 5, 6, 7 and 8, possible embodiment alternatives of a bag 10 according to the invention are shown. In the not yet usage of the bag 10, namely after its production or in its transport state, the bag 10 is folded up flatly which is for example shown in FIGS. 1, 3, FIG. 4 and FIG. 6. In this state the front wall 11 and the back wall 12 of the bag 10 are lying directly on top of one another wherein the bag 10 comprises a foldable bottom 13 in the plane of the walls 11, 12. If now the user wants to use this bag 10 both walls 11, 12 can be folded apart so that a filling chamber 14 results open at one side which is shown in FIG. 5.

(11) Further, the bag 10 comprises a pair of carrying handles 31 which are assembled at the inner sides 16, 17 of the walls 11, 12. Hereby, the pair of carrying handles 31 comprises two handles 32, 33, which are assembled within the filling chamber 14 at the inner sides 16, 17 of the front wall 11 and the back wall 12. This is among others shown in FIGS. 3, 4 and 5.

(12) Each handle 32, 33 is part of a carrying element 30 which is likewise shown in FIG. 1 and FIG. 2. In the shown embodiment the carrying element 30 can be configured as a piece of paper. Hereby, the carrying element is punched out or lasered or perforated in a way that the handle 32, 33 can be folded out of the carrying element 30 which is schematically shown in FIGS. 3 and 4. In FIG. 3 the pair of carrying handles 31 is in a resting position 2 in which the pair of carrying handles 31 is completely within the filling chamber 14. According to FIG. 4 the usage position 1 of the pair of carrying handles 31 is shown in which the pair of carrying handles 31 extends from the filling chamber 14.

(13) The pair of carrying handles 31 comprises a folding line 15 which is in the filling chamber 14 wherein the folding line 15 can be also localized at the edge 18 of the bag 10 or at the front wall 11 or the back wall 12. In the latter embodiment the folding line 15 is according to the idea of the invention in the filling chamber 14.

(14) According to the shown embodiment the carrying element 30 is assembled evenly to the edge 18 of the front wall 11 and the back wall 12. It is possible that the carrying element 30 can also be assembled spaced apart from the edge 18 inside of the bag 10. The edge 18 is hereby on the opposing side of the bottom 13. According to FIGS. 1, 2, 3, 4, 5, and 8, the carrying element 30 is configured rectangularly. The handle 32, 33 hereby represents a part of the carrying element 30 which is assembled in a material bond manner at the inner side 16, 17 of the walls 11, 12 in the shown embodiment. Hereby, a hot glue connection or cold glue connection can be used.

(15) According to FIG. 1 and FIG. 2 the bag 10 can comprise a recess 19 at the edge 18 of the front wall 11 or the back wall 12 which serves as an opening aid in order to fold the folded bag 10 apart in order to guide and place objects into the filling chamber 14. The opening aid 19 is configured semi-circularly in the shown embodiment. So that during the folding apart of the bag 10 the user does not experience an injury at the edge 18 of the walls 11, 12 of the bag 10, the edge 18 is configured blunt this means that the edge 18 is for example perforated and/or felted and/or frayed.

(16) The handle 32, 33 or the pair of carrying handles 31 can comprise diverse geometric forms wherein the handle 32, 33 can comprise the form of an advertising media which is for example shown in FIG. 8. Here the handle 32, 33 comprises an M-like shape. Further, each embodiment of the invention comprises a pair of carrying handles 31 which comprise a handle opening 34 so that the user can reliably grab the pair of carrying handles 31 in the usage position 1 of the handles 32, 33.

(17) In FIG. 6 it is shown that the bag 10 can comprise a transparent window 20 at the front wall 11 and/or back wall 12 so that the user can look into the filling chamber 14. The bottom 13 of the bag 10 can be configured differently, for example it is possible that the bottom 13 according to FIGS. 1 and 2 can be configured as a cross bottom 13a or a block bottom 13b or as a flat and lateral folding bottom 13c. The carrying element 30 can be configured from a material reinforced and/or fabric reinforced paper and/or tissue and/or fleece. Likewise it is possible that the carrying element 30 can be configured from a plastic. The bag 10 is configured from a paper material in the shown embodiments. It is possible that the carrying element 30 comprises a weight of approximately 200 g/m.sup.2 to 300 g/m.sup.2.

(18) According to FIG. 1 and FIG. 2 a bag 10 can be configured or produced which is for example shown in FIGS. 3, 4. 5, 6, 7 and 8. In FIG. 1 and FIG. 2 initially in a device 50 the production of a carrying element 30 occurs with foldable handles 32, 33. In FIG. 1 each carrying element 30 comprises a foldable handle 32, 33. In FIG. 2 each carrying element 30 comprises two handles 32, 33 assembled on opposing sides. In the device 60 an assembly of two carrying elements 30 spaced apart from another occurs at the translational moving material web 3 from which the bag 10 is produced. The material web 3 moves in the direction of the arrow which has the reference sign 6. In the device 60 further the tubular configuration of the material web 3 occurs so that the material web 3 configures a tube 4 and the carrying elements 30 are assembled on top of one another within the tube 4. Subsequently, in the separation device 70 a separation of the material web 3 occurs so that single tube sections 5 arise with two carrying elements 30 lying on top of one another which are lying within the tube 4 and are in contact with one another. In the subsequent bottom layer 80 (bottom configuration unit) a folding of the tube 4 or the tube section 5 can occur so that according to FIG. 1 a bottom 13 and according to FIG. 2 two bottoms 13 result.

(19) According to FIG. 1 it is also possible that initially a bottom layer 80 is getting active at the material web 3 subsequently to the device 60 and a bottom 13 is folded at the tube 4 before subsequently a separation of the material web 3 occurs.

(20) In dependence from the bottom layer 80 different bottom forms like cross bottom 13a, block bottom 13b or flat and lateral folding bottom 13c can be folded which can naturally be seen in FIG. 2. According to FIG. 1 a production cycle is ended after the bottom layer 80 so that as an end product the bag 10 results. According to FIG. 2 a central separation of the tube section 5 through both carrying elements 30 occurs subsequently to the bottom layer 80 so that subsequently two bags 10 result.

(21) In the device 60 it can be likewise intended that a perforation line 21 is applied perpendicular to the material web 3 in the material movement direction 6. The perforation line 21 can serve for supporting the separation and the device 70.

(22) Within the device 60 the opening aid 19 can be assembled at the edge of one of both carrying elements 30 wherein in the present embodiment according to FIG. 1 and FIG. 2 the opening aid 19 is configured as a material recess in the carrying element 30 and in the material web 3. This is due to the fact that in the dissociation device 90 a central separation of the tube section 5 which is provided with a bottom 13 at both sides occurs by the recess 19. Subsequently, both bags 10 comprise an opening aid 19 which corresponds to the opening aid 19 according to FIG. 1. Only the efficiency during the production of the bag 10 in FIG. 2 can be doubled.

(23) According to FIG. 1 all aggregates 50, 60, 70, 80 within one aggregate (=machine unit) of the machine system 100 can be integrated. According to FIG. 2 it is possible that the device 50 and/or 60 and 70 are integrated in the first aggregate and that the bottom layer 80 and the dissociation device 90 are aggregated in a second aggregate. The dissociation device 90 can also be integrated in a separate aggregate.

REFERENCE LIST

(24) 1 Usage position 2 Rest position 3 Material web 4 Tube 5 Tube section 6 Material web movement direction 10 Bag 11 Front wall 12 Back wall 13 Bottom 13a Cross Bottom 13b Block Bottom 13c Flat and lateral folding bottom 14 Filling chamber 15 Folding line 16 Inner side of 11 17 Inner side of 12 18 Edge 19 Opening aid, material recess 20 Window 21 Perforation line 30 Carrying element 31 Pair of carrying handles 32 Handle 33 Handle 34 Handle opening 50 Device 60 Tube configuration device 70 Separation device 80 Bottom layer 90 Dissociation device 100 Machine system