CA2081107A1 - Method for manufacturing a sack or bag with a bottom being rectangular in the filled state and with a handle, and a sack or bag manufactured in accordance with said method - Google Patents
Method for manufacturing a sack or bag with a bottom being rectangular in the filled state and with a handle, and a sack or bag manufactured in accordance with said methodInfo
- Publication number
- CA2081107A1 CA2081107A1 CA002081107A CA2081107A CA2081107A1 CA 2081107 A1 CA2081107 A1 CA 2081107A1 CA 002081107 A CA002081107 A CA 002081107A CA 2081107 A CA2081107 A CA 2081107A CA 2081107 A1 CA2081107 A1 CA 2081107A1
- Authority
- CA
- Canada
- Prior art keywords
- sack
- bag
- fold
- glued
- edge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/06—Handles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Making Paper Articles (AREA)
- Bag Frames (AREA)
Abstract
METHOD FOR MANUFACTURING A SACK OR BAG WITH AN END
BEING RECTANGULAR IN THE FILLED STATE AND WITH A HANDLE, AND A SACK OR BAG MANUFACTURED IN ACCORDANCE
WITH SAID METHOD
Abstract The present invention refers to a method for manufacturing a sack or bag with an end being rectangular in the filled state and with a handle piece, and sacks or bags manufactured according to said method. For the solution of the object to simplify already known methods, at the end of a tube section with side folds, three parallel, pregrooved fold lines extending transversely to the side edges are formed. Then the end is pulled open and a rectangular cover sheet provided with glue at its circumference is pasted thereinto, at which a flap is formed by folding, wherein the fold edge of the flap lies approximately on one of the two fold lines. After the application of a glued area, the section of the end above one of the two upper fold edges and the flap, the glued surface is glued to the opposite part of the end.
Then the grip hole is cut by punching in the glued section between the fold edge and the outer end. After the filling of the sack or bag the open end is sealed in a conventional manner.
BEING RECTANGULAR IN THE FILLED STATE AND WITH A HANDLE, AND A SACK OR BAG MANUFACTURED IN ACCORDANCE
WITH SAID METHOD
Abstract The present invention refers to a method for manufacturing a sack or bag with an end being rectangular in the filled state and with a handle piece, and sacks or bags manufactured according to said method. For the solution of the object to simplify already known methods, at the end of a tube section with side folds, three parallel, pregrooved fold lines extending transversely to the side edges are formed. Then the end is pulled open and a rectangular cover sheet provided with glue at its circumference is pasted thereinto, at which a flap is formed by folding, wherein the fold edge of the flap lies approximately on one of the two fold lines. After the application of a glued area, the section of the end above one of the two upper fold edges and the flap, the glued surface is glued to the opposite part of the end.
Then the grip hole is cut by punching in the glued section between the fold edge and the outer end. After the filling of the sack or bag the open end is sealed in a conventional manner.
Description
METHOD FOR MANUFACTURING A SACK OR BAG WITH AN E~D
BEING RECTANGULAR IN THE FILLED STATE AND WITH A HANDLE, AND A SACK OR BAG MANUFACTURED IN ACCORDANCE
WITH SAID METHOD
This invention relates to a method for manufacturing a sack or bag with an end being rectangular in the filled state and with a handle portion, and to sacks or bags manufactured in accordance with said method.
Sacks or bags of thls kind are for instance known from the German Utillty Models 81 15 909 and 82 07 889. Sald known sacks or bags, however, show the drawback that the leg~llke strips forming an end leaf, so to speak, which in their middle reglon are connected with the web sectlon being provided with the griphole, are glued to the end all over, or nearly all over, so that through the web section, i.e. in the region of the longitudinal centre plane runnlng through the end of the sack, conslderable strains are exercised on the end during carrying, said strains resulting from the fact that the forces exercised by the web section are introduced therein substantially in the region of a line e~tending centrically through the end square.
In order to avoid this drawback, in the German patent application 40 12 896.2 a sack or bag is described which is formed by side tucks partially overlapping corner tucks, and the handle portion joined thereto consists of a middle web section with the griphole and lateral leg-like strips of flexible material being connected therewith, wherein the end which is pulled open is conventionally glued or welded to a leaf connected sealingly with the inner edges of the corner tucks and at least with the inner edges of the side tucks adjacent to their fold lines, wherein the handle portion is inserted in the still open end, and the leg-like strips thereof are at least partially covered by the side tucks and glued or welded thereto. In this sack or bag, the side of the lateral leg-like strips of the handle portion facing the leaf constituted by e.g. a piece of .,. --: .
.: . , -, , , :
.
':,' , , . .
.~ .
paper or foil, wherein said strips carry in the cen-tre thereof the web section having the griphole, is not glued to said leaf, but the side tucks overlap the lateral leg-like strips and are glued or welded thereto with the sides thereof at which also the middle web section with the griphole is located. Said sack or bag, therefore, is characterized by a tunnel which is formed between the lower side of the handle portion and the ou-ter side of the leaf. Due to this design, through the middle web section and the leg-like strips connected therewith, the carrying forces are substantially directly introduced into the side walls of the filled sack or bag, so that the handle portion can accept considerably greater carrying forces without the sack being damaged thereby or end parts being stripped thereoff.
But it has been proved to be disadvantageous that the sack or bag described above cannot be easily and simply produced by machines. Also the method for manufacturing a sack or bag with a tunnel of the kind mentioned above, as described in the German patent application P 40 14 600.6, is relatively complicated.
lt is an object of the present invention to provide a method for manufacturing a sack or bag of the generic type by which said sack or bag can be easily and economically produced by machines in a production line.
Accordingly a method is disclosed for forming a sack or bag with rectangular ends and a handle comprising the following steps:
forming three parallel, pregrooved fold lines ex-tending transversely to the side edges at one end of a tube piece with side folds;
pulling open the end provided with fold lines in such a manner that the lowermost fold line forms a centre line of the pulled-open endi - . .. , ., ~ , . . .
:
: i: ~ ~ .,, .. :: , ~::
pasting a rectangular cover sheet provided with glue around its circumference to the open end forming a flap at one edge of the cover sheet by folding it in such a manner that the fold edge lies approximately on one of the two upper pregrooved fold linesi applying glue to the area of the open end above one of the two upper pregrooved fold lines, and to the flap;
folding the open end at the centre line, and gluing together the area applied with glue and the portion of the open end opposlte thereto; and cutting out a grip hole by punching in the glued section between an upper pregrooved fold line and a top edge.
A decisive advantage of this method compared with the known method lies in the fact that the leaf to be glued thereto need not be prefabricated. Nevertheless, in this case a so-called tunnel bottom is obtalned automatically ln an especially simple manner by folding together the end. The advantage of the sack or bag manufactured according to thls method compared with bags having handles jolned thereto, lies in the fact that the carrying handles are directly incorporated into the end during manufacture, so that additional work cycles like the production of handle portions and the gluing thereof are not required.
An advantageous embodiment of the method above comprises glulng ln handle relnforcements prior to folding together the open end thereby increasing the carrying capacity of the handle.
In this case it is particularly advantageous that by the corner tucks a reinforcement in the area of the formed handle portion which is particularly subject to strain is obtained.
A sack or bag being manufactured in accordance with the method of the invention consists preferably of a single material.
Thereby the sultablllty for recycling of -the sack or bag is ,, . :.
.. .. . .. .
,. :
, ~
improved. It is particularly advantageous that the sack or bag consists of paper.
A further solution for the above defined object is given by the method comprising the steps of:
(a~ formation of two pregrooved fold lines extending in parallel to each other and transversely to the side edge, at one end of a tube piece with side folds, (b) pulling open the end in such a manner that the fold line lying inwardly forms a centre line of the pulled-open end, (c) gluing on two handles laterally on the pulled open end and partially onto the inner tube wall of the tube piece, (d) pasting in a rectangular cover sheet which is provided with glue at the edge sections, and (e) upward folding of the lower half of the end at the inwardly lying fold line onto the upper half of the end.
By means of this method sacks or bags can be produced which use a comparably very small amount of material, but which are still of a very strong design in the handle portion.
Furthermore, there is obtained an absolute consistency despite the fact that separate handles are incorporated within the end.
The incorporation of the handles renders possible in an especially advantageous manner that the side walls can be printed all over.
A preferred embodiment of the said method above results from folding the uppermost pregrooved fold line together with the glued edge section of the cover sheet upward by 90 to form a top edge.
Another solution of the object is represented in the method comprising the following steps:
(a) Formation of two pregrooved fold lines extending in parallel to each other and transversely to the side edge, at one end of a tube piece with side folds, (b) cutting the outer edge portion up to the fold line in such a manner that lobes extending in parallel to the side folds are created, (c) pulling open the end in such a manner that the inwardly lying fold line forms the centre line of the pulled-open end, (d) folding over of the outer end flaps at the fold edges in such a manner that the flaps project outwardly, (e) gluing two handles onto the outwardly projecting flaps and partially onto the inner tube wall, (f) pasting in a rectangular cover sheet which is provided with glue in a certain Eormat at the edge sections, and (g) upward folding of the lower half of the end at the inwardly lying fold line onto the upper half of the end.
A sack or bag manufactured according to said method has the advantage that it does not have upper edge sections. The formed lobes provide a larger adhesion surface area for the handles, whereby stability is further enhanced.
The object stated hereinabove is also solved by a method comprising the following s-teps:
(a) Formation of two pregrooved fold lines extending in parallel to each other and transversely to the side edge, at one end of the tube piece with side folds, (b) forming cuts being parallel to the side folds, which extend up to the fold line, (c) pulling open the end in such a manner that the inwardly lying fold line forms the centre line of the pulled open end, (d) insertion of cord handle pieces and gluing them to the inner tube walls of the tube piece, (e) folding over of the outer end flaps along the fold edges, (f) pasting in a rectangular cover sheet which is provided wlth glue in a format-like manner at the edge sections, and (g) upward folding of the lower half of the end at the inwardly lying fold line onto the upper half of the end.
.. .` ' ',~
, . . .
' ~'`';.
' .:
By -this metho~ a sack or bag with so-called cord handles is proposed which, according to an advantageous embodiment, can also consist of the same material as the bag, in particular of paper.
The object is also solved by a method according to the following steps:
(a) onto a continuously advanced flat web -there are glued handle pieces laterally and spaced apart from each other, (b) then an additional strip is supplied which is glued to the web at an edge section of the web along a longitudinal seam, (c) on the strip another adhesive strip is applied at the edge at the free end of the strip, (d) the web is Eolded to a tube, whereby side folds are formed, (e) the tube piece formed in said manner is provided with two pregrooved fold lines which extend in parallel to each other and transversely to the side folds, (f) the end is pulled open along the inner fold line, (g) the side edges of the end are folded over at the fold lines, (h) a cover sheet is glued to the covered end by means of a glued area, and (i) upward folding of -the lower half of the end at the inwardly lying fold line onto the upper half of the end.
This method enables the provision of laterally joined handles for a sack or bag.
Furthermore, the object indicated hereinbefore is also solved by the methods according to the following steps:
(a) Formation of two pregrooved fold lines extending in parallel to each other and transversely to the side edge, at one end of the tube piece wi-th side folds, (b) pulling open the end in such a manner that the inwardly lying fold line forms the cen-tre line of the pulled open end, whereby corner tucks are formed, ~ . :-: ., -... . .
(c) gluing on a cover sheet by means of a glued area covering the open end at the slde of the edges, wherein a U-shaped sheet and the end portions of a handle piece are glued onto the cover sheet, (d) application of a glued area onto the edge of the cover sheet, wherein glue is also applied to the free leg of the U-shaped sheet, (e) upward folding of -the lower half of the end at the inwardly lying fold edge onto the upper half of the end.
An additional method according to the invention comprises the following steps:
(a) providing cuts arranged along a straight line on an advanced flat web, (b) gluing on a handle in the section of a cut such that the end sections are glued to the web up to the cut, where the portion of the handle projecting beyond the cut is not glued, (c) application of glue on a la-teral edge strip of the flat web, (d) folding together of the bag, whereby side folds are formed, and severing in bag length, (e) formation of three parallel, pregrooved fold lines extending transversely to the side folds, at the end of the tube piece at which the handle is joined, (f) pulling open the end in such a manner that the lowermost fold line forms the centre line of the pulled open end, (g) pasting in a rectangular cover sheet being provided with glue at the circumference, at which a flap is formed by folding such that the fold edge of the flap lies approximately on one of the two fold lines, (h) application of glue on the section of the end above one of the two upper fold edges and the flap, (i) folding of the pulled open end at the centre line and gluing of the glued area with the opposite part of the end. -Despite the fact that it has been indicated as being especially advantageous that the sacks or bags manufactured according to the invention consist of paper, it must be emphasized that within the scope of the invention they can also consist of any other material, in particular also of plastic.
Such plastic sacks or bags are not necessarily glued within the scope of the invention, but can also be welded, as is a measure belonging to prior art.
The ends still open after the filling of the sacks or bags are sealed in any manner according to prior art.
Further details and advantages of the invention will be explained in detail in the following by means of the embodiments represented in the drawings. There is illustrated in Figures 1 through 7:
the method steps of a first method according to the invention for the manufacture of a sack or bag, Figures 8 through 13:
a second embodiment of the method according to the invention for the manufacture of a sack or bag, Figures 14 through 21:
a third embodiment of the method according to the invention for the manufacture of a sack or bag, Figures 22 through 29:
a fourth embodiment of the method according to the invention for the manufacture of a sack or bag, Eigures 30 through 3~:
a fifth embodiment of the method according to the invention for the manufacture of a sack or a bag, Figures 38 through 46:
a sixth embodiment of the method according to the invention for the manufacture of a sack or a bag, and :
_ g _ , ~ , . . : ., .
,- : ~. :' , Figures 47 through 55:
a seventh embodiment of the method according to the invention for the manufacture of a sack or a bag.
First of all, the indlvidual method steps of the first embodiment of the method according to the invention for the manufacture of a sack or bag - in the present case a disposable diaper bag with a pinch-bottom - will be described with reference to Fig. 1 through 7.
The tube piece 1 represented in Fig. 1 is provided with side folds 2. The tube piece 1 will be provided with three pregroovings 3, 4, and 5 extending transversely to the side folds 2. The thus formed tube section is then pulled open along the pregrooved edge 3. The pulled-open state of the bag is shown in Fig. 2. Onto the end pulled open in such a manner, on the one hand two reinforcing sheets 6 and 7 are completely glued all over in the edge sections and, on the other hand, a cover sheet 8 is inserted which forms an end leaf. In Fig. 3 the already inserted end leaf is shown. Additionally, in order to show the end leaf clearly, the end leaf is shown prior to -the insertion in a perspective view. From said perspective it can be gathered that the cover sheet 8 is provided with an external glued area 9 (i.e.
it is provlded with glue over a certain area in a certain format). Said glued area does not include a flap 10 formed at one side of the cover sheet by folding which can also be designated as lobe. Wi-th the side provided with glue in a frame-like form which can be inferred from said perspective detail drawing, the cover sheet 8 is put on the open end and correspondingly glued thereto. In Fig. 3 the flap 10 of the glued cover sheet, which is not provided with glue, faces the viewer.
In the method step as illustrated in Fig. 4 in the upper part of the pulled-open sack - i.e. above the fold edge 5 - and on the flap 10 abutting below said part, a glued area 11 is applied thereto. Subsequently, the open end is closed by folding , . .
' ' ;' ~ ' ! ,; ;
' ' ' . ", ' :
' ' ' " ' ~ ', .
~' '" ; `'' ` ' ~ j at the fold edge 3 so that the arrangement as shown in Fig. 5 is obtained. In Fig. 6 the method step is shown in which a grip hole 12 is cut in by punching in the area in which the reinforcing sheets 6 and 7 lie on top of each other.
The filling of a bag prepared in said manner is carried out at the still open end opposite the grip hole 12. After the filling, said open end is sealed in any manner known in prior art so that the bundle as illustrated in Fig. 7 is obtained.
By means of Figs. 8 through 13 another embodiment of the method according to -the invention for the manufacture of a disposable diaper bag with a kind of pinch-bottom is explained.
According to Fig. 8 it is again started with a tube piece 13 with side folds 14, in which pregroovings 15 and 16 are provided which extend in parallel to each other and transversely to the side folds 14. The thus prepared tube piece is pulled open along the pregrooved edge 16, whereby-the pulled open end according to Fig.
9 is obtained. Onto the end pulled open in said manner, prepared handles 17 and 18 are put which, in the section of their contact, are completely glued all over to the pulled-open end and partially with the inner walls of the tube piece 13 (see Fig.
lC). The prepared handles 17 and 18 consist of correspondingly folded paper strips. In accordance with Fig. 11 a cover sheet 19 is subsequently put on this end whi.ch on its side facing the bag is provided with a frame-like allround layer of glue 20.
Subsequent to the application of the cover sheet 19, the lower half of the end is folded upwardly onto the upper half of the end at the pregrooved edge 16 by 180, as can be gathered from Fig.
12. The thus prepared diaper bag is then filled from below, as it is the case in the first embodiment, and thereupon sealed in the lower section in a known manner, whereby the bundle represented in Fig. 13 is obtained.
By means of Figs. 14 through 21 the method according-to the third embodiment o~ the invention can be explained. Also in this case, as can be inferred from Fig. 14, it is proceeded from a , ~ , ;
~, , : . ; ::
' ' ~ ' ~' ' , tube piece 21 formed with side folds 22, which is provided with pregroovings 23 and 29 extending transversely to the side folds 22 and in parallel to each other. As is illustrated in Fig. 15, in a tube piece prepared in said manner at the upper edge four cuts 25, and 26 are formed by which lobes 27 and 28 are created.
The thus prepared tube piece is then pulled open in the upper section along the fold line 24 to form an end, which is shown in Fig. 16. Then the upper and the lower portion of the end are respectively folded inwards at the fold lines 23, whereby the configuration represented in Fig. 17 is obtained, in which the lobes 27 and 28 project outwardly. As is shown in Fig. 18, handles 29 and 30 are put thereon afterwards which are completely glued to the later side walls as well as to the lobes 27 and 28.
Onto the covered bu-t not yet closed end as represented in Fig.
18 there is put a cover sheet 31 which is glued to the end by means of a format-wise area of glue 32 (Fig. 19). From Fig. 19 it can be seen that the format-wise application of glue is omitted in the area of the handles 29 and 30 glued to the side walls. This is necessary so that the cover sheet 31 is not glued to the side walls, whereby a later end forma-tion would be inhibited. Then the lower half of the end is folded at the fold edge 24 by 180 onto the upper half, whereby the diaper bag according to Fig. 20 is obtained. Af-ter the filling of such a bag, the bundle shown in Fig. 21 is obtained, the bottom of which is again closed in a known manner. Said bundle does not show any upper edge sections extending in parallel to each other as does the bundle according to Fig 13. Consequently, according to said embodiment of the method there is produced an edge-free bag.
By means of Figs. 22 through 29 a further embodiment of the method according to the invention can be described. In Fig. 22 there is again shown a tube piece 33 with side folds 34, which at one end is provided with two fold lines 35 and 36 in the form of pregroovings, which are parallel to each other and transverse to the side folds. Accordlng to Fig. 23, cuts 37 are provided which extend parallel to the side folds 34. A tube piece prepared in said manner is then pulled open at the fold edye 36, -, .. . .
as illustra-ted in Fig. 24. In the thus pulled open end, two prepared cord handle pieces 38 are put on the inner slde walls of the tube piece 33 and glued thereto. The cord handle pieces 38 advan-tageously also consist of paper cords which at their free ends are glued in between two longitudinal and rectangular paper strips. This can be gathered from Fig. 25. In the following, as is shown in Fig. 26, -the -two end flaps are folded to the inside at the groove edges 35, whereby it is ensured by the cuts 37 that the cords 38 need not be bent. Onto the covered end as shown in Fig. 26 which is not yet closed, a cover sheet 39 is put and glued to the end by a corresponding glued area 40, as can be seen in Fig. 27. The lower half of the end is then folded at the fold line 36 by 180 upwards onto the upper half of the end so that a diaper bag still open at the bottom is obtained as is represented in Fig. 28. After the filling of such a bag from below, and after the sealing of the lower, still open bottom, the bundle illustrated in Fig. 29 is obtained. Also for the bag manufactured according to said embodiment of the method an edge-free bundle is obtained which in this case is provided with handles made of paper cords 38 ins-tead of handles made of paper strips.
Another embodiment for the method according to the invention is illustrated in Figs. 30 to 37. Said embodiment is an economic method for the continuous production of diaper bags with carrying means which are disposed in the side fold. First of all handle pieces 42 are glued onto a continuously advanced flat web 41, which consists e.g. of paper, on both sides spaced apart from each other. After this has been carried out, an additional strip 43 is supplied, as can be seen in Fig. 31. Said supplied strip 43 is glued at an edge section by means of a longitudinal seam 44 with the flat web 41. Parallel to said longitudinal seam 44 the additional web 43 has another adhesive strip 45. The thus prepared web is then folded to form a tube provided with side folds 46 and 47 as shown in 32'. In this case, the left side fold 47 is formed by the additional strip 43. According to Fig.
32, a tube piece formed in such a manner is pregrooved with -two fold lines 48 and 49 which extend in parallel to each other and transversely to the side folds 46 and 47. Along the pregrooved fold line 48 the end is pulled open so that the configuration represented in Fig. 33 is obtained. Then the end is covered up along the lines 49, which can be seen in Fig. 34, but it is still partially open. A cover sheet 50 is glued to the covered end in a usual manner by means of a glued area 51, as is represented in Fig. 35. Then the lower half of the end 50 is folded upwards at the groove edge 48 by 180 onto the upper end half, as can be inferred from Fig. 36. After the filling of a bag prepared in said manner, the bundle shown in Fig. 37 is obtained.
By means of Figs. 38 through 46 another embodiment of the present invention is explained. In accordance with Fig. 38 again two pregrooved fold lines 94 and 96 extending in parallel to each other and transversely to the side edge are formed at one end of a tube piece 90 w:ith side folds 92. According to Fig. 39 the end is pulled open such that the inwardly lying fold line 96 forms the centre line of the pulled open end, whereby corner tucks 98 are created. According to Fig. 40 a rectangular cover sheet 100 is glued thereto which has a glued area 108 similar to that of the cover sheet 70 of the previous embodiment (see with respec-t thereto Fig. 41). In this case, however, apart from a U-shaped sheet 102 which in turn is glued thereto with a leg over the width of the sheet 100, a paper handle piece 104 is glued to the cover sheet 100, as becomes obvious from Figs. 42 and 43.
Then a glued area 110 is applied, the arrangement of which results from Fig. 44, wherein also on the free leg of the U-shaped sheet 102 glue is applied. Finally, the lower half of the end is folded at the inwardly disposed fold edge 96 onto the upper half of the end. After filling of the bag and covering of the open side of the bag with any bottom, the bundle according to Fig. 46 is obtained.
One last embodiment is explained by means of Figs. 47 through 55. On an advanced flat web 120 made of paper, cuts 122 ; ~ ', and 124 are provided which are arranged along a straight line and the arrangement of which can be seen in Fig. 47. Then a handle 126 which consists of a folded paper strip is glued thereto in the section of the cut 122 in such a manner that the ends are glued with the web 120 up to cut 122, whereas the portion of the handle 126 ju-tting out beyond cut 122 is not glued. Glue is applied to a lateral edge strip of the flat web 120.
According to Fig. 49 the web is folded to bags under formation of side folds 130, wherein the bags are severed in the length of bags. This is possible in the section of the handles 126 by the fact that in said section the cuts 122 and 124 were provided prior thereto. According to Fig. 50 three parallel, pregrooved fold lines 132, 134, and 136, extending transversely to the side edges, are pregrooved at the end of the tube piece to which the handle 126 has been joined. Then, according to Fig.
51, the end is pulled open such that the lowermost fold line 132 forms the centre line of the pulled open end. According to Fig.
52, a rectangular cover sheet 138, provided with glue at its circumference, at which a flap 140 is formed by folding, is pasted into the end such that the fold edge of the flap 138 lies approximately upon one of the two fold lines 136. According to Fig. 53, the section above one of the two upper fold edges 136 and the flap 140 is provided with a glued area 144. Finally, the open end is folded upwards at the centre line 132 and the glued area is glued to the part of the end facing it. After filling of the bag and seallng of the still open side with any bottom, the bundle according to Fig. 55 ls obtained.
"., ,~, , ,, ~ :, ,
BEING RECTANGULAR IN THE FILLED STATE AND WITH A HANDLE, AND A SACK OR BAG MANUFACTURED IN ACCORDANCE
WITH SAID METHOD
This invention relates to a method for manufacturing a sack or bag with an end being rectangular in the filled state and with a handle portion, and to sacks or bags manufactured in accordance with said method.
Sacks or bags of thls kind are for instance known from the German Utillty Models 81 15 909 and 82 07 889. Sald known sacks or bags, however, show the drawback that the leg~llke strips forming an end leaf, so to speak, which in their middle reglon are connected with the web sectlon being provided with the griphole, are glued to the end all over, or nearly all over, so that through the web section, i.e. in the region of the longitudinal centre plane runnlng through the end of the sack, conslderable strains are exercised on the end during carrying, said strains resulting from the fact that the forces exercised by the web section are introduced therein substantially in the region of a line e~tending centrically through the end square.
In order to avoid this drawback, in the German patent application 40 12 896.2 a sack or bag is described which is formed by side tucks partially overlapping corner tucks, and the handle portion joined thereto consists of a middle web section with the griphole and lateral leg-like strips of flexible material being connected therewith, wherein the end which is pulled open is conventionally glued or welded to a leaf connected sealingly with the inner edges of the corner tucks and at least with the inner edges of the side tucks adjacent to their fold lines, wherein the handle portion is inserted in the still open end, and the leg-like strips thereof are at least partially covered by the side tucks and glued or welded thereto. In this sack or bag, the side of the lateral leg-like strips of the handle portion facing the leaf constituted by e.g. a piece of .,. --: .
.: . , -, , , :
.
':,' , , . .
.~ .
paper or foil, wherein said strips carry in the cen-tre thereof the web section having the griphole, is not glued to said leaf, but the side tucks overlap the lateral leg-like strips and are glued or welded thereto with the sides thereof at which also the middle web section with the griphole is located. Said sack or bag, therefore, is characterized by a tunnel which is formed between the lower side of the handle portion and the ou-ter side of the leaf. Due to this design, through the middle web section and the leg-like strips connected therewith, the carrying forces are substantially directly introduced into the side walls of the filled sack or bag, so that the handle portion can accept considerably greater carrying forces without the sack being damaged thereby or end parts being stripped thereoff.
But it has been proved to be disadvantageous that the sack or bag described above cannot be easily and simply produced by machines. Also the method for manufacturing a sack or bag with a tunnel of the kind mentioned above, as described in the German patent application P 40 14 600.6, is relatively complicated.
lt is an object of the present invention to provide a method for manufacturing a sack or bag of the generic type by which said sack or bag can be easily and economically produced by machines in a production line.
Accordingly a method is disclosed for forming a sack or bag with rectangular ends and a handle comprising the following steps:
forming three parallel, pregrooved fold lines ex-tending transversely to the side edges at one end of a tube piece with side folds;
pulling open the end provided with fold lines in such a manner that the lowermost fold line forms a centre line of the pulled-open endi - . .. , ., ~ , . . .
:
: i: ~ ~ .,, .. :: , ~::
pasting a rectangular cover sheet provided with glue around its circumference to the open end forming a flap at one edge of the cover sheet by folding it in such a manner that the fold edge lies approximately on one of the two upper pregrooved fold linesi applying glue to the area of the open end above one of the two upper pregrooved fold lines, and to the flap;
folding the open end at the centre line, and gluing together the area applied with glue and the portion of the open end opposlte thereto; and cutting out a grip hole by punching in the glued section between an upper pregrooved fold line and a top edge.
A decisive advantage of this method compared with the known method lies in the fact that the leaf to be glued thereto need not be prefabricated. Nevertheless, in this case a so-called tunnel bottom is obtalned automatically ln an especially simple manner by folding together the end. The advantage of the sack or bag manufactured according to thls method compared with bags having handles jolned thereto, lies in the fact that the carrying handles are directly incorporated into the end during manufacture, so that additional work cycles like the production of handle portions and the gluing thereof are not required.
An advantageous embodiment of the method above comprises glulng ln handle relnforcements prior to folding together the open end thereby increasing the carrying capacity of the handle.
In this case it is particularly advantageous that by the corner tucks a reinforcement in the area of the formed handle portion which is particularly subject to strain is obtained.
A sack or bag being manufactured in accordance with the method of the invention consists preferably of a single material.
Thereby the sultablllty for recycling of -the sack or bag is ,, . :.
.. .. . .. .
,. :
, ~
improved. It is particularly advantageous that the sack or bag consists of paper.
A further solution for the above defined object is given by the method comprising the steps of:
(a~ formation of two pregrooved fold lines extending in parallel to each other and transversely to the side edge, at one end of a tube piece with side folds, (b) pulling open the end in such a manner that the fold line lying inwardly forms a centre line of the pulled-open end, (c) gluing on two handles laterally on the pulled open end and partially onto the inner tube wall of the tube piece, (d) pasting in a rectangular cover sheet which is provided with glue at the edge sections, and (e) upward folding of the lower half of the end at the inwardly lying fold line onto the upper half of the end.
By means of this method sacks or bags can be produced which use a comparably very small amount of material, but which are still of a very strong design in the handle portion.
Furthermore, there is obtained an absolute consistency despite the fact that separate handles are incorporated within the end.
The incorporation of the handles renders possible in an especially advantageous manner that the side walls can be printed all over.
A preferred embodiment of the said method above results from folding the uppermost pregrooved fold line together with the glued edge section of the cover sheet upward by 90 to form a top edge.
Another solution of the object is represented in the method comprising the following steps:
(a) Formation of two pregrooved fold lines extending in parallel to each other and transversely to the side edge, at one end of a tube piece with side folds, (b) cutting the outer edge portion up to the fold line in such a manner that lobes extending in parallel to the side folds are created, (c) pulling open the end in such a manner that the inwardly lying fold line forms the centre line of the pulled-open end, (d) folding over of the outer end flaps at the fold edges in such a manner that the flaps project outwardly, (e) gluing two handles onto the outwardly projecting flaps and partially onto the inner tube wall, (f) pasting in a rectangular cover sheet which is provided with glue in a certain Eormat at the edge sections, and (g) upward folding of the lower half of the end at the inwardly lying fold line onto the upper half of the end.
A sack or bag manufactured according to said method has the advantage that it does not have upper edge sections. The formed lobes provide a larger adhesion surface area for the handles, whereby stability is further enhanced.
The object stated hereinabove is also solved by a method comprising the following s-teps:
(a) Formation of two pregrooved fold lines extending in parallel to each other and transversely to the side edge, at one end of the tube piece with side folds, (b) forming cuts being parallel to the side folds, which extend up to the fold line, (c) pulling open the end in such a manner that the inwardly lying fold line forms the centre line of the pulled open end, (d) insertion of cord handle pieces and gluing them to the inner tube walls of the tube piece, (e) folding over of the outer end flaps along the fold edges, (f) pasting in a rectangular cover sheet which is provided wlth glue in a format-like manner at the edge sections, and (g) upward folding of the lower half of the end at the inwardly lying fold line onto the upper half of the end.
.. .` ' ',~
, . . .
' ~'`';.
' .:
By -this metho~ a sack or bag with so-called cord handles is proposed which, according to an advantageous embodiment, can also consist of the same material as the bag, in particular of paper.
The object is also solved by a method according to the following steps:
(a) onto a continuously advanced flat web -there are glued handle pieces laterally and spaced apart from each other, (b) then an additional strip is supplied which is glued to the web at an edge section of the web along a longitudinal seam, (c) on the strip another adhesive strip is applied at the edge at the free end of the strip, (d) the web is Eolded to a tube, whereby side folds are formed, (e) the tube piece formed in said manner is provided with two pregrooved fold lines which extend in parallel to each other and transversely to the side folds, (f) the end is pulled open along the inner fold line, (g) the side edges of the end are folded over at the fold lines, (h) a cover sheet is glued to the covered end by means of a glued area, and (i) upward folding of -the lower half of the end at the inwardly lying fold line onto the upper half of the end.
This method enables the provision of laterally joined handles for a sack or bag.
Furthermore, the object indicated hereinbefore is also solved by the methods according to the following steps:
(a) Formation of two pregrooved fold lines extending in parallel to each other and transversely to the side edge, at one end of the tube piece wi-th side folds, (b) pulling open the end in such a manner that the inwardly lying fold line forms the cen-tre line of the pulled open end, whereby corner tucks are formed, ~ . :-: ., -... . .
(c) gluing on a cover sheet by means of a glued area covering the open end at the slde of the edges, wherein a U-shaped sheet and the end portions of a handle piece are glued onto the cover sheet, (d) application of a glued area onto the edge of the cover sheet, wherein glue is also applied to the free leg of the U-shaped sheet, (e) upward folding of -the lower half of the end at the inwardly lying fold edge onto the upper half of the end.
An additional method according to the invention comprises the following steps:
(a) providing cuts arranged along a straight line on an advanced flat web, (b) gluing on a handle in the section of a cut such that the end sections are glued to the web up to the cut, where the portion of the handle projecting beyond the cut is not glued, (c) application of glue on a la-teral edge strip of the flat web, (d) folding together of the bag, whereby side folds are formed, and severing in bag length, (e) formation of three parallel, pregrooved fold lines extending transversely to the side folds, at the end of the tube piece at which the handle is joined, (f) pulling open the end in such a manner that the lowermost fold line forms the centre line of the pulled open end, (g) pasting in a rectangular cover sheet being provided with glue at the circumference, at which a flap is formed by folding such that the fold edge of the flap lies approximately on one of the two fold lines, (h) application of glue on the section of the end above one of the two upper fold edges and the flap, (i) folding of the pulled open end at the centre line and gluing of the glued area with the opposite part of the end. -Despite the fact that it has been indicated as being especially advantageous that the sacks or bags manufactured according to the invention consist of paper, it must be emphasized that within the scope of the invention they can also consist of any other material, in particular also of plastic.
Such plastic sacks or bags are not necessarily glued within the scope of the invention, but can also be welded, as is a measure belonging to prior art.
The ends still open after the filling of the sacks or bags are sealed in any manner according to prior art.
Further details and advantages of the invention will be explained in detail in the following by means of the embodiments represented in the drawings. There is illustrated in Figures 1 through 7:
the method steps of a first method according to the invention for the manufacture of a sack or bag, Figures 8 through 13:
a second embodiment of the method according to the invention for the manufacture of a sack or bag, Figures 14 through 21:
a third embodiment of the method according to the invention for the manufacture of a sack or bag, Figures 22 through 29:
a fourth embodiment of the method according to the invention for the manufacture of a sack or bag, Eigures 30 through 3~:
a fifth embodiment of the method according to the invention for the manufacture of a sack or a bag, Figures 38 through 46:
a sixth embodiment of the method according to the invention for the manufacture of a sack or a bag, and :
_ g _ , ~ , . . : ., .
,- : ~. :' , Figures 47 through 55:
a seventh embodiment of the method according to the invention for the manufacture of a sack or a bag.
First of all, the indlvidual method steps of the first embodiment of the method according to the invention for the manufacture of a sack or bag - in the present case a disposable diaper bag with a pinch-bottom - will be described with reference to Fig. 1 through 7.
The tube piece 1 represented in Fig. 1 is provided with side folds 2. The tube piece 1 will be provided with three pregroovings 3, 4, and 5 extending transversely to the side folds 2. The thus formed tube section is then pulled open along the pregrooved edge 3. The pulled-open state of the bag is shown in Fig. 2. Onto the end pulled open in such a manner, on the one hand two reinforcing sheets 6 and 7 are completely glued all over in the edge sections and, on the other hand, a cover sheet 8 is inserted which forms an end leaf. In Fig. 3 the already inserted end leaf is shown. Additionally, in order to show the end leaf clearly, the end leaf is shown prior to -the insertion in a perspective view. From said perspective it can be gathered that the cover sheet 8 is provided with an external glued area 9 (i.e.
it is provlded with glue over a certain area in a certain format). Said glued area does not include a flap 10 formed at one side of the cover sheet by folding which can also be designated as lobe. Wi-th the side provided with glue in a frame-like form which can be inferred from said perspective detail drawing, the cover sheet 8 is put on the open end and correspondingly glued thereto. In Fig. 3 the flap 10 of the glued cover sheet, which is not provided with glue, faces the viewer.
In the method step as illustrated in Fig. 4 in the upper part of the pulled-open sack - i.e. above the fold edge 5 - and on the flap 10 abutting below said part, a glued area 11 is applied thereto. Subsequently, the open end is closed by folding , . .
' ' ;' ~ ' ! ,; ;
' ' ' . ", ' :
' ' ' " ' ~ ', .
~' '" ; `'' ` ' ~ j at the fold edge 3 so that the arrangement as shown in Fig. 5 is obtained. In Fig. 6 the method step is shown in which a grip hole 12 is cut in by punching in the area in which the reinforcing sheets 6 and 7 lie on top of each other.
The filling of a bag prepared in said manner is carried out at the still open end opposite the grip hole 12. After the filling, said open end is sealed in any manner known in prior art so that the bundle as illustrated in Fig. 7 is obtained.
By means of Figs. 8 through 13 another embodiment of the method according to -the invention for the manufacture of a disposable diaper bag with a kind of pinch-bottom is explained.
According to Fig. 8 it is again started with a tube piece 13 with side folds 14, in which pregroovings 15 and 16 are provided which extend in parallel to each other and transversely to the side folds 14. The thus prepared tube piece is pulled open along the pregrooved edge 16, whereby-the pulled open end according to Fig.
9 is obtained. Onto the end pulled open in said manner, prepared handles 17 and 18 are put which, in the section of their contact, are completely glued all over to the pulled-open end and partially with the inner walls of the tube piece 13 (see Fig.
lC). The prepared handles 17 and 18 consist of correspondingly folded paper strips. In accordance with Fig. 11 a cover sheet 19 is subsequently put on this end whi.ch on its side facing the bag is provided with a frame-like allround layer of glue 20.
Subsequent to the application of the cover sheet 19, the lower half of the end is folded upwardly onto the upper half of the end at the pregrooved edge 16 by 180, as can be gathered from Fig.
12. The thus prepared diaper bag is then filled from below, as it is the case in the first embodiment, and thereupon sealed in the lower section in a known manner, whereby the bundle represented in Fig. 13 is obtained.
By means of Figs. 14 through 21 the method according-to the third embodiment o~ the invention can be explained. Also in this case, as can be inferred from Fig. 14, it is proceeded from a , ~ , ;
~, , : . ; ::
' ' ~ ' ~' ' , tube piece 21 formed with side folds 22, which is provided with pregroovings 23 and 29 extending transversely to the side folds 22 and in parallel to each other. As is illustrated in Fig. 15, in a tube piece prepared in said manner at the upper edge four cuts 25, and 26 are formed by which lobes 27 and 28 are created.
The thus prepared tube piece is then pulled open in the upper section along the fold line 24 to form an end, which is shown in Fig. 16. Then the upper and the lower portion of the end are respectively folded inwards at the fold lines 23, whereby the configuration represented in Fig. 17 is obtained, in which the lobes 27 and 28 project outwardly. As is shown in Fig. 18, handles 29 and 30 are put thereon afterwards which are completely glued to the later side walls as well as to the lobes 27 and 28.
Onto the covered bu-t not yet closed end as represented in Fig.
18 there is put a cover sheet 31 which is glued to the end by means of a format-wise area of glue 32 (Fig. 19). From Fig. 19 it can be seen that the format-wise application of glue is omitted in the area of the handles 29 and 30 glued to the side walls. This is necessary so that the cover sheet 31 is not glued to the side walls, whereby a later end forma-tion would be inhibited. Then the lower half of the end is folded at the fold edge 24 by 180 onto the upper half, whereby the diaper bag according to Fig. 20 is obtained. Af-ter the filling of such a bag, the bundle shown in Fig. 21 is obtained, the bottom of which is again closed in a known manner. Said bundle does not show any upper edge sections extending in parallel to each other as does the bundle according to Fig 13. Consequently, according to said embodiment of the method there is produced an edge-free bag.
By means of Figs. 22 through 29 a further embodiment of the method according to the invention can be described. In Fig. 22 there is again shown a tube piece 33 with side folds 34, which at one end is provided with two fold lines 35 and 36 in the form of pregroovings, which are parallel to each other and transverse to the side folds. Accordlng to Fig. 23, cuts 37 are provided which extend parallel to the side folds 34. A tube piece prepared in said manner is then pulled open at the fold edye 36, -, .. . .
as illustra-ted in Fig. 24. In the thus pulled open end, two prepared cord handle pieces 38 are put on the inner slde walls of the tube piece 33 and glued thereto. The cord handle pieces 38 advan-tageously also consist of paper cords which at their free ends are glued in between two longitudinal and rectangular paper strips. This can be gathered from Fig. 25. In the following, as is shown in Fig. 26, -the -two end flaps are folded to the inside at the groove edges 35, whereby it is ensured by the cuts 37 that the cords 38 need not be bent. Onto the covered end as shown in Fig. 26 which is not yet closed, a cover sheet 39 is put and glued to the end by a corresponding glued area 40, as can be seen in Fig. 27. The lower half of the end is then folded at the fold line 36 by 180 upwards onto the upper half of the end so that a diaper bag still open at the bottom is obtained as is represented in Fig. 28. After the filling of such a bag from below, and after the sealing of the lower, still open bottom, the bundle illustrated in Fig. 29 is obtained. Also for the bag manufactured according to said embodiment of the method an edge-free bundle is obtained which in this case is provided with handles made of paper cords 38 ins-tead of handles made of paper strips.
Another embodiment for the method according to the invention is illustrated in Figs. 30 to 37. Said embodiment is an economic method for the continuous production of diaper bags with carrying means which are disposed in the side fold. First of all handle pieces 42 are glued onto a continuously advanced flat web 41, which consists e.g. of paper, on both sides spaced apart from each other. After this has been carried out, an additional strip 43 is supplied, as can be seen in Fig. 31. Said supplied strip 43 is glued at an edge section by means of a longitudinal seam 44 with the flat web 41. Parallel to said longitudinal seam 44 the additional web 43 has another adhesive strip 45. The thus prepared web is then folded to form a tube provided with side folds 46 and 47 as shown in 32'. In this case, the left side fold 47 is formed by the additional strip 43. According to Fig.
32, a tube piece formed in such a manner is pregrooved with -two fold lines 48 and 49 which extend in parallel to each other and transversely to the side folds 46 and 47. Along the pregrooved fold line 48 the end is pulled open so that the configuration represented in Fig. 33 is obtained. Then the end is covered up along the lines 49, which can be seen in Fig. 34, but it is still partially open. A cover sheet 50 is glued to the covered end in a usual manner by means of a glued area 51, as is represented in Fig. 35. Then the lower half of the end 50 is folded upwards at the groove edge 48 by 180 onto the upper end half, as can be inferred from Fig. 36. After the filling of a bag prepared in said manner, the bundle shown in Fig. 37 is obtained.
By means of Figs. 38 through 46 another embodiment of the present invention is explained. In accordance with Fig. 38 again two pregrooved fold lines 94 and 96 extending in parallel to each other and transversely to the side edge are formed at one end of a tube piece 90 w:ith side folds 92. According to Fig. 39 the end is pulled open such that the inwardly lying fold line 96 forms the centre line of the pulled open end, whereby corner tucks 98 are created. According to Fig. 40 a rectangular cover sheet 100 is glued thereto which has a glued area 108 similar to that of the cover sheet 70 of the previous embodiment (see with respec-t thereto Fig. 41). In this case, however, apart from a U-shaped sheet 102 which in turn is glued thereto with a leg over the width of the sheet 100, a paper handle piece 104 is glued to the cover sheet 100, as becomes obvious from Figs. 42 and 43.
Then a glued area 110 is applied, the arrangement of which results from Fig. 44, wherein also on the free leg of the U-shaped sheet 102 glue is applied. Finally, the lower half of the end is folded at the inwardly disposed fold edge 96 onto the upper half of the end. After filling of the bag and covering of the open side of the bag with any bottom, the bundle according to Fig. 46 is obtained.
One last embodiment is explained by means of Figs. 47 through 55. On an advanced flat web 120 made of paper, cuts 122 ; ~ ', and 124 are provided which are arranged along a straight line and the arrangement of which can be seen in Fig. 47. Then a handle 126 which consists of a folded paper strip is glued thereto in the section of the cut 122 in such a manner that the ends are glued with the web 120 up to cut 122, whereas the portion of the handle 126 ju-tting out beyond cut 122 is not glued. Glue is applied to a lateral edge strip of the flat web 120.
According to Fig. 49 the web is folded to bags under formation of side folds 130, wherein the bags are severed in the length of bags. This is possible in the section of the handles 126 by the fact that in said section the cuts 122 and 124 were provided prior thereto. According to Fig. 50 three parallel, pregrooved fold lines 132, 134, and 136, extending transversely to the side edges, are pregrooved at the end of the tube piece to which the handle 126 has been joined. Then, according to Fig.
51, the end is pulled open such that the lowermost fold line 132 forms the centre line of the pulled open end. According to Fig.
52, a rectangular cover sheet 138, provided with glue at its circumference, at which a flap 140 is formed by folding, is pasted into the end such that the fold edge of the flap 138 lies approximately upon one of the two fold lines 136. According to Fig. 53, the section above one of the two upper fold edges 136 and the flap 140 is provided with a glued area 144. Finally, the open end is folded upwards at the centre line 132 and the glued area is glued to the part of the end facing it. After filling of the bag and seallng of the still open side with any bottom, the bundle according to Fig. 55 ls obtained.
"., ,~, , ,, ~ :, ,
Claims (21)
1. Method for manufacturing a sack or bag with ends being rectangular in the filled state and with a handle piece, comprising the following steps:
(a) Formation of three parallel, pregrooved fold lines extending transversely to the side edges, at one end of a tube piece with side folds, (b) pulling open one end provided with fold lines in such a manner that the lowermost fold line forms the centre line of the pulled-open end, (c) pasting a rectangular cover sheet provided with glue around its circumference to the open end at which a flap is formed by folding in such a manner that the fold edge of the flap lies approximately on one of the two fold lines, (d) application of glue on the area of the end above one of the two upper fold edges and the flap, (e) folding of the pulled-open end at the centre line and gluing together the area applied with glue with the portion of the end opposite thereto, and (f) cutting out a grip hole by punching in the glued section between the fold edge and a top edge.
(a) Formation of three parallel, pregrooved fold lines extending transversely to the side edges, at one end of a tube piece with side folds, (b) pulling open one end provided with fold lines in such a manner that the lowermost fold line forms the centre line of the pulled-open end, (c) pasting a rectangular cover sheet provided with glue around its circumference to the open end at which a flap is formed by folding in such a manner that the fold edge of the flap lies approximately on one of the two fold lines, (d) application of glue on the area of the end above one of the two upper fold edges and the flap, (e) folding of the pulled-open end at the centre line and gluing together the area applied with glue with the portion of the end opposite thereto, and (f) cutting out a grip hole by punching in the glued section between the fold edge and a top edge.
2. Method according to claim 1, characterized in that prior to the folding together and the gluing of the open end, handle reinforcement means are pasted thereinto.
3. Sack or bag manufactured according to the method of claim 1 or 2, characterized in that it is made of one single material.
4. Sack or bag according to claim 3, characterized in that the material is paper.
5. Method for manufacturing a sack or bag with ends being rectangular in the filled state and with a handle joined thereto, comprising the following steps:
(a) formation of two pregrooved fold lines extending in parallel to each other and transversely to the side edge, at one end of a tube piece with side folds, (b) pulling open the end in such a manner that the fold line lying inwardly forms a centre line of the pulled-open end, (c) gluing on two handles laterally on the pulled-open end and partially onto the inner tube wall of the tube piece, (d) pasting in a rectangular cover sheet which is provided with glue at the edge sections, and (e) upward folding of the lower half of the end at the inwardly lying fold line onto the upper half of the end.
(a) formation of two pregrooved fold lines extending in parallel to each other and transversely to the side edge, at one end of a tube piece with side folds, (b) pulling open the end in such a manner that the fold line lying inwardly forms a centre line of the pulled-open end, (c) gluing on two handles laterally on the pulled-open end and partially onto the inner tube wall of the tube piece, (d) pasting in a rectangular cover sheet which is provided with glue at the edge sections, and (e) upward folding of the lower half of the end at the inwardly lying fold line onto the upper half of the end.
6. Method according to claim 5, characterized in that the edge section of the tube piece is folded upwards together with the glued edge section of the cover sheet at the fold line by 90°, respectively.
7. Method for manufacturing a sack or bag with ends being rectangular in the filled state and with a handle joined thereto, comprising the following steps:
(a) Formation of two pregrooved fold lines extending in parallel to each other and transversely to the side edge, at one end of a tube piece with side folds, (b) cutting the outer edge portion up to the fold line in such a manner that lobes extending in parallel to the side folds are created, (c) pulling open the end in such a manner that the inwardly lying fold line forms the centre line of the pulled-open end, (d) folding over of the outer end flaps at the fold edges in such a manner that the flaps project outwardly, (e) gluing two handles onto the outwardly projecting flaps and partially onto the inner tube wall, (f) pasting in a rectangular cover sheet which is provided with glue in a certain format at the edge sections, and (g) upward folding of the lower half of the end at the inwardly lying fold line onto the upper half of the end.
(a) Formation of two pregrooved fold lines extending in parallel to each other and transversely to the side edge, at one end of a tube piece with side folds, (b) cutting the outer edge portion up to the fold line in such a manner that lobes extending in parallel to the side folds are created, (c) pulling open the end in such a manner that the inwardly lying fold line forms the centre line of the pulled-open end, (d) folding over of the outer end flaps at the fold edges in such a manner that the flaps project outwardly, (e) gluing two handles onto the outwardly projecting flaps and partially onto the inner tube wall, (f) pasting in a rectangular cover sheet which is provided with glue in a certain format at the edge sections, and (g) upward folding of the lower half of the end at the inwardly lying fold line onto the upper half of the end.
8. Sack or bag according to any one of claims 5-7, characterized in that it is made of one single material.
9. Sack or bag according to claim 8, characterized in that the material is paper and that the handles consist of correspondingly folded paper strips.
10. Method for the production of a sack or bag with ends being rectangular in the filled state and with a handle joined thereto, comprising the following steps:
(a) Formation of two pregrooved fold lines extending in parallel to each other and transversely to the side edge, at one end of the tube piece with side folds, (b) forming cuts being parallel to the side folds, which extend up to the fold line, (c) pulling open the end in such a manner that the inwardly lying fold line forms the centre line of the pulled open end, (d) insertion of cord handle pieces and gluing them to the inner tube walls of the tube piece, (e) folding over of the outer end flaps along the fold edges, (f) pasting in a rectangular cover sheet which is provided with glue in a format-like manner at the edge sections, and (g) upward folding of the lower half of the end at the inwardly lying fold line onto the upper half of the end.
(a) Formation of two pregrooved fold lines extending in parallel to each other and transversely to the side edge, at one end of the tube piece with side folds, (b) forming cuts being parallel to the side folds, which extend up to the fold line, (c) pulling open the end in such a manner that the inwardly lying fold line forms the centre line of the pulled open end, (d) insertion of cord handle pieces and gluing them to the inner tube walls of the tube piece, (e) folding over of the outer end flaps along the fold edges, (f) pasting in a rectangular cover sheet which is provided with glue in a format-like manner at the edge sections, and (g) upward folding of the lower half of the end at the inwardly lying fold line onto the upper half of the end.
11 Sack or bag according to claim 10, characterized in that it is made of one single material.
12. Sack or bag according to claim 10, characterized in that the material is paper and that the cord handle pieces are twisted using paper strips, which at their ends are glued in between two flat paper strips.
13. Method for manufacturing a sack or bag with ends being rectangular in the filled state and with laterally joined handle pieces, comprising the following steps:
(a) onto a continuously advanced flat web there are glued handle pieces laterally and spaced apart from each other, (b) then an additional strip is supplied which is glued to the web at an edge section of the web along a longitudinal seam, (c) on the strip another adhesive strip is applied at the edge at the free end of the strip, (d) the web is folded to a tube, whereby side folds are formed, (e) the tube piece formed in said manner is provided with two pregrooved fold lines which extend in parallel to each other and transversely to the side folds, (f) the end is pulled open along the inner fold line, (g) the side edges of the end are folded over at the fold lines, (h) a cover sheet is glued to the covered end by means of a glued area, and (i) upward folding of the lower half of the end at the inwardly lying fold line onto the upper half of the end.
(a) onto a continuously advanced flat web there are glued handle pieces laterally and spaced apart from each other, (b) then an additional strip is supplied which is glued to the web at an edge section of the web along a longitudinal seam, (c) on the strip another adhesive strip is applied at the edge at the free end of the strip, (d) the web is folded to a tube, whereby side folds are formed, (e) the tube piece formed in said manner is provided with two pregrooved fold lines which extend in parallel to each other and transversely to the side folds, (f) the end is pulled open along the inner fold line, (g) the side edges of the end are folded over at the fold lines, (h) a cover sheet is glued to the covered end by means of a glued area, and (i) upward folding of the lower half of the end at the inwardly lying fold line onto the upper half of the end.
14. Sack or bag according to claim 13, characterized in that it is made of one single material.
15. Sack or bag according to claim 14, characterized in that the material is paper.
16. Method for manufacturing a sack or bag with ends being rectangular in the filled state and with a handle piece joined thereto, comprising the following steps:
(a) Formation of two pregrooved fold lines extending in parallel to each other and transversely to the side edge, at one end of the tube piece with side folds, (b) pulling open the end in such a manner that the inwardly lying fold line forms the centre line of the pulled open end, whereby corner tucks are formed, (c) gluing on a cover sheet by means of a glued area covering the open end at the side of the edges, wherein a U-shaped sheet and the end portions of a handle piece are glued onto the cover sheet, (d) application of a glued area onto the edge of the cover sheet, wherein glue is also applied to the free leg of the U-shaped sheet, (e) upward folding of the lower half of the end at the inwardly lying fold edge onto the upper half of the end.
(a) Formation of two pregrooved fold lines extending in parallel to each other and transversely to the side edge, at one end of the tube piece with side folds, (b) pulling open the end in such a manner that the inwardly lying fold line forms the centre line of the pulled open end, whereby corner tucks are formed, (c) gluing on a cover sheet by means of a glued area covering the open end at the side of the edges, wherein a U-shaped sheet and the end portions of a handle piece are glued onto the cover sheet, (d) application of a glued area onto the edge of the cover sheet, wherein glue is also applied to the free leg of the U-shaped sheet, (e) upward folding of the lower half of the end at the inwardly lying fold edge onto the upper half of the end.
17. Sack or bag according to Claim 16, characterized in that it is made of one single material.
18. Sack or bag according to claim 20, characterized in that the material is paper and that the handle consists of a correspondingly folded paper strip.
19. Method for manufacturing a sack or bag with ends being rectangular in the filled state and with a handle piece joined thereto, comprising the following steps:
(a) providing cuts arranged along a straight line on an advanced flat web, (b) gluing on a handle in the section of a cut such that the end sections are glued to the web up to the cut, where the portion of the handle projecting beyond the cut is not glued, (c) application of glue on a lateral edge strip of the flat web, (d) folding together of the bag, whereby side folds are formed, and severing in bag length, (e) formation of three parallel, pregrooved fold lines extending transversely to the side folds, at the end of the tube piece at which the handle is joined, (f) pulling open the end in such a manner that the lowermost fold line forms the centre line of the pulled open end, (g) pasting in a rectangular cover sheet being provided with glue at the circumference, at which a flap is formed by folding such that the fold edge of the flap lies approximately on one of the two fold lines, (h) application of glue on the section of the end above one of the two upper fold edges and the flap, (i) folding of the pulled open end at the centre line and gluing of the glued area with the opposite part of the end.
(a) providing cuts arranged along a straight line on an advanced flat web, (b) gluing on a handle in the section of a cut such that the end sections are glued to the web up to the cut, where the portion of the handle projecting beyond the cut is not glued, (c) application of glue on a lateral edge strip of the flat web, (d) folding together of the bag, whereby side folds are formed, and severing in bag length, (e) formation of three parallel, pregrooved fold lines extending transversely to the side folds, at the end of the tube piece at which the handle is joined, (f) pulling open the end in such a manner that the lowermost fold line forms the centre line of the pulled open end, (g) pasting in a rectangular cover sheet being provided with glue at the circumference, at which a flap is formed by folding such that the fold edge of the flap lies approximately on one of the two fold lines, (h) application of glue on the section of the end above one of the two upper fold edges and the flap, (i) folding of the pulled open end at the centre line and gluing of the glued area with the opposite part of the end.
20. Sack or bag according to claim 19, characterized in that it is made of one single material.
21. Sack or bag according to claim 20, characterized in that the material is paper and that the handle consists of a correspondingly folded paper strip.
Applications Claiming Priority (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4106407.0 | 1991-02-28 | ||
| DE4106407 | 1991-02-28 | ||
| DEP4110747.0 | 1991-04-03 | ||
| DE4110747 | 1991-04-03 | ||
| DEP4113232.7 | 1991-04-23 | ||
| DE4113232 | 1991-04-23 | ||
| DEP4135980.1 | 1991-10-31 | ||
| DE4135980A DE4135980A1 (en) | 1991-02-28 | 1991-10-31 | METHOD FOR PRODUCING A SACK OR BAG WITH RECTANGULAR BOTTOM IN FILLED CONDITION AND WITH A HANDLE AND A SACK OR BAG PRODUCED BY THIS METHOD |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2081107A1 true CA2081107A1 (en) | 1992-08-29 |
Family
ID=27435143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002081107A Abandoned CA2081107A1 (en) | 1991-02-28 | 1992-02-27 | Method for manufacturing a sack or bag with a bottom being rectangular in the filled state and with a handle, and a sack or bag manufactured in accordance with said method |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0527988A1 (en) |
| JP (1) | JPH05507448A (en) |
| CA (1) | CA2081107A1 (en) |
| DE (1) | DE4135980A1 (en) |
| WO (1) | WO1992015492A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100518921B1 (en) * | 2000-08-29 | 2005-10-06 | 소시에떼 데 프로듀이 네슬레 소시에떼아노님 | Flexible container having flat walls |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4021801A1 (en) * | 1990-04-23 | 1991-10-24 | Windmoeller & Hoelscher | SACK OR BAG WITH FILLED CONDITION OF RECTANGULAR BOTTOM AND STICKED HANDLE |
| DE4014600A1 (en) * | 1990-05-07 | 1991-11-14 | Windmoeller & Hoelscher | METHOD FOR PRODUCING A SACK OR BAG WITH A RECTANGULAR BOTTOM IN THE FILLED CONDITION AND A HANDLE PART |
-
1991
- 1991-10-31 DE DE4135980A patent/DE4135980A1/en not_active Withdrawn
-
1992
- 1992-02-27 EP EP92905451A patent/EP0527988A1/en not_active Withdrawn
- 1992-02-27 JP JP92504947A patent/JPH05507448A/en active Pending
- 1992-02-27 CA CA002081107A patent/CA2081107A1/en not_active Abandoned
- 1992-02-27 WO PCT/EP1992/000420 patent/WO1992015492A1/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| DE4135980A1 (en) | 1992-09-03 |
| JPH05507448A (en) | 1993-10-28 |
| EP0527988A1 (en) | 1993-02-24 |
| WO1992015492A1 (en) | 1992-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100558746B1 (en) | Cigarette packet with auxiliary opening means | |
| CA2292648C (en) | Carton, carton blank and method for forming the carton | |
| US4418864A (en) | Carton with handle | |
| RU2137412C1 (en) | Bag with handles | |
| US5371997A (en) | Method of making a packaging bag having tear-open means | |
| US4789060A (en) | Cuboid pack for cigarettes with transverse cut lines | |
| US5382215A (en) | Process for producing paper bags with handles | |
| US6244435B1 (en) | Cigarette package | |
| US4927028A (en) | Package having a tear-open strip | |
| US5149315A (en) | Method of making lined square bottom bag | |
| US5102383A (en) | Method of manufacturing a sack or bag with a bottom being rectangular in the filled state and a handle portion joined thereto | |
| US5245815A (en) | Pre-wrapped gift package | |
| WO1981000090A1 (en) | Carton handles | |
| US5478153A (en) | Multilayer sack or bag with bottom | |
| CA2081107A1 (en) | Method for manufacturing a sack or bag with a bottom being rectangular in the filled state and with a handle, and a sack or bag manufactured in accordance with said method | |
| WO1996036538A2 (en) | Cigarette package | |
| WO1988009752A1 (en) | Method for placing a sack into a stand and removing out of it | |
| JPS6344451A (en) | Portable packaging bag and manufacture thereof | |
| US5203758A (en) | Method for manufacturing a sack or bag with a bottom being rectangular in the filled state and with a handle, and a sack or bag manufactured in accordance with said method | |
| CA2083499A1 (en) | Method for manufacturing a sack or bag with a bottom being rectangular in the filled state and with a handle portion, and a sack or bag manufactured in accordance with said method | |
| EP0869073B1 (en) | Hexagonal bottom sack with plastic inner sack and method for its manufacturing. | |
| US5518316A (en) | Heat sealed bag | |
| JPS633960Y2 (en) | ||
| JP7342750B2 (en) | storage box | |
| JPH0318828B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |