EP0620157B1 - Sac en papier - Google Patents

Sac en papier Download PDF

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Publication number
EP0620157B1
EP0620157B1 EP93119926A EP93119926A EP0620157B1 EP 0620157 B1 EP0620157 B1 EP 0620157B1 EP 93119926 A EP93119926 A EP 93119926A EP 93119926 A EP93119926 A EP 93119926A EP 0620157 B1 EP0620157 B1 EP 0620157B1
Authority
EP
European Patent Office
Prior art keywords
tear
layer
longitudinal lines
sack
open
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.)
Expired - Lifetime
Application number
EP93119926A
Other languages
German (de)
English (en)
Other versions
EP0620157A3 (fr
EP0620157A2 (fr
Inventor
Günter Südecum
Peter Kramme
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ASSIDOMAEN HERKULES VERPACKUNGSWERKE GMBH
Original Assignee
Assidoman Herkules Verpackungswerke GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Assidoman Herkules Verpackungswerke GmbH filed Critical Assidoman Herkules Verpackungswerke GmbH
Publication of EP0620157A2 publication Critical patent/EP0620157A2/fr
Publication of EP0620157A3 publication Critical patent/EP0620157A3/fr
Application granted granted Critical
Publication of EP0620157B1 publication Critical patent/EP0620157B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5827—Tear-lines provided in a wall portion
    • B65D75/5833—Tear-lines provided in a wall portion for tearing out a portion of the wall
    • B65D75/5844—Tear-lines provided in a wall portion for tearing out a portion of the wall the portion of the wall being a narrow strip, e.g. between lines of weakness

Definitions

  • the invention relates to a multi-layer paper bag with two preferably rectangular floors and one arranged in between tubular, when filled, the rectangular shape of the cladding wall adopting the floors
  • Such paper bags are made of a multi-layer, to tubes glued jacket wall made, the floors from the hose material are folded out.
  • Cross-bottom bags are created by folding a tubular jacket between outer side edges is laid flat, while block bottoms by folding a jacket hose with gussets.
  • Such bags are usually opened through an opening in the bottom, which can be provided with a valve hose, or through the still open bottom filled.
  • the sack After the sack has been transported to the end customer, the sack is removed from this opened to the filling material formed by bulk material to get there, so to be able to empty the sack. To do this the sack wall often cut open.
  • DE 40 10 822 A1 is a ripping device discloses an opening of the bottom over the entire Cross bottom width allows. This opening at least allows one partial opening of the corner folds to remove the filling material.
  • the opening in the bottom area has the advantage that the bag stability remains unaffected, however, the disadvantage that the Tearing open against considerable resistance occurs and thus is difficult to cope with.
  • US-A-3 175 752 and CH-A-384 452 are weld sealed Plastic packaging known, the jacket wall through a glued-on pull tab in the area of the pull tab can be torn open. According to US-A-3 175 752 under the tear-open tab defines the start of the tear-open Die cut in the plastic film.
  • the invention has for its object a paper bag to provide an opening aid mentioned at the beginning, the a complete emptying of the paper bag in daily use allows the stability of the paper bag not noticeably affected and is easy to open.
  • a single-layer paper bag is the entrance mentioned type according to the invention solved by at least one in the jacket wall running parallel to a floor, by tearing perforations with each directed in the tearing direction Longitudinal lines and one connecting the longitudinal lines Tear line formed tear strip of only one extends small part of the width of the jacket wall, the The front line of each inner layer is offset in the tear direction the front line of the layer located further outside is.
  • tear perforations limit the full tear area. Because according to the invention the opening direction of the opening formed by the opening Tear strip runs parallel to the floor, should in itself Tear perforation in a closed line on the jacket wall circulate to the thought of complete removal to realize the soil. Such a tear perforation would reduce the stability of the bag too much and the danger bursting of the sack in the area of the tear perforation when throwing the filled sack from a greater height. According to the invention, the tear perforation only extends over a small part of the width of the jacket wall, preferably only over a few centimeters, preferably no more than half the wide side wall of the filled sack.
  • the front line is offset from each layer in the tear direction the front line of the layer located further outside only the tear-open perforation of the outermost layer has to be pressed in or captured and only gripped the outermost layer will. If in a preferred embodiment the tear strips the position are glued together, the tear strips of the layers underneath automatically by the staggered Arrangement of the front lines lifted off.
  • the parallel longitudinal lines of the layers offset are arranged to each other, the expediently Distance between the parallel longitudinal lines of one inner layer is smaller than that of an outer layer. Thereby remains the residual risk of the perforation lines bursting further reduced.
  • the tear perforation according to the invention can be done in a simple manner on three sides with two parallel to each other in the tear direction Longitudinal lines and one the ends of the longitudinal lines with each other connecting front line perpendicular to them be trained.
  • the tear strip thus formed must go through Pushing or reaching behind the perforations from the rest Cladding wall can be solved. This is conveniently done by pressing in or reaching behind the forehead line.
  • Tear perforations according to the invention can also occur multiple times a sack may be provided, for example in alignment with one another on its front and back or independently near both bottoms of the sack.
  • the multilayer sack shown in FIG. 1 has two bottoms 1, 2 on which are produced as cross bottoms from the tubular Sheath wall 3 are folded.
  • the upper floor 2 has a schematic shown external valve 4, through which the rest closed sack can be filled with contents.
  • the jacket wall 3 in cross section essentially the rectangular shape of the floors 1,2 and exists thus from two large side walls 5 and two narrow side walls 6.
  • the sack is centered in the large one Side wall 5 has a tear perforation 7, which consists of two parallel longitudinal lines 8 and one the one-sided Ends of the longitudinal lines 8 connecting, perpendicular to this Front line 9 exists.
  • tear perforation lines 8, 9 the free end of a tear strip 10 in the outer Dead end, which is opened from the front 9 and towards the arrow 11 can be pulled to a full Circulation the part located above the tear strip 10 the jacket wall 3 together with the associated bottom 2 of the to separate the remaining part of the jacket wall 3 with the bottom 1. This creates a sack that is completely open at the top can be emptied completely without difficulty.
  • Figure 2 illustrates the design of the opening aid in a three-layer jacket wall 3.
  • Each of the jacket walls forms a tear strip 10,10 ', 10' ', each on the adjacent Surfaces are glued together.
  • Figure 2 shows the tear strips 10, 10 ', 10' 'after separation from the associated ones Lay the jacket wall 3 along the perforation lines 8.9; 8 ', 9' or 8 '', 9 ''. It is clear that the forehead line 9 '' of the innermost layer in tearing directions 11 compared to the Front line 9 'of the middle layer and this in turn opposite the front line 9 of the outer layer is offset.
  • those that run parallel to one another are Perforation lines 8 or 8 'and 8' 'offset from one another, the two perforation lines 8 ′′ being a smaller distance apart from each other than the perforation lines 8 'and these again have a smaller distance than the perforation lines 8.
  • the tear strip 10 '' inner layer is narrower and shorter than the tear strip 10 ' the middle layer and this again shorter and narrower than that Tear strip 10 of the outer layer.
  • Figure 2 shows the state of the along the perforation lines 8.9; 8 ', 9'; 8 '', 9 '' tear strips 10,10 ', 10' ', which in this state continue to revolve in the tear direction 11 the entire jacket wall 3 are drawn to the upper part to separate the sack.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Bag Frames (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Pens And Brushes (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Claims (5)

  1. Sac en papier à parois multiples comportant deux fonds (1, 2) de préférence rectangulaires et, agencée entre ceux-ci, une paroi périphérique (3) en forme de gaine adoptant à l'état rempli la forme rectangulaire des fonds (1, 2), caractérisé par au moins une languette arrachable (10, 10', 10'') s'étendant dans la paroi latérale (3) parallèlement à un fond (2), constituée par des perforations d'arrachament (8, 9; 8', 9'; 8'', 9'') ayant des lignes longitudinales (8, 8', 8'') dirigées chacune dans la direction d'arrachement (11) et une ligne frontale (9, 9', 9'') reliant les lignes longitudinales (8, 8', 8''), la languette arrachable (10, 10', 10'') ne s'étendant que sur une partie réduite de la largeur de la paroi périphérique (3), la ligne frontale (9', 9'') de chaque paroi intérieure étant disposée décalée dans la direction d'arrachement (11) par rapport à la ligne frontale (9, 9') de la paroi se trouvant plus loin vers l'extérieur.
  2. Sac en papier selon la revendication 1, caractérisé en ce que les lignes longitudinales parallèles entre elles (8, 8', 8'') des parois sont agencées mutuellement décalées.
  3. Sac en papier selon la revendication 2, caractérisé en ce que la distance entra les lignes longitudinales parallèles entre elles (8'', 8') d'une paroi intérieure est plus faible que la distance entre les lignes longitudinales (8', 8) d'une paroi extérieure.
  4. Sac en papier selon l'une des revendications 1 à 3, caractérisé en ce que les languettes arrachables (10, 10', 10'') des parois sont collées entre elles.
  5. Sac en papier selon l'une des revendications 1 à 4, caractérisé en ce que les languettes arrachables (10, 10', 10'') constituées par les perforations d'arrachement (8, 9; 8', 9'; 8'', 9'') s'étendent au maximum sur la moitié de la largeur d'une grande paroi latérale (5) de la paroi périphérique (3).
EP93119926A 1993-04-10 1993-12-10 Sac en papier Expired - Lifetime EP0620157B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9305473U DE9305473U1 (de) 1993-04-10 1993-04-10 Papiersack
DE9305473U 1993-04-10

Publications (3)

Publication Number Publication Date
EP0620157A2 EP0620157A2 (fr) 1994-10-19
EP0620157A3 EP0620157A3 (fr) 1995-02-15
EP0620157B1 true EP0620157B1 (fr) 1998-03-04

Family

ID=6891898

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93119926A Expired - Lifetime EP0620157B1 (fr) 1993-04-10 1993-12-10 Sac en papier

Country Status (3)

Country Link
EP (1) EP0620157B1 (fr)
AT (1) ATE163619T1 (fr)
DE (2) DE9305473U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202018106868U1 (de) 2018-12-03 2019-01-07 Bischof + Klein Se & Co. Kg Sack und Folienschlauch zur Herstellung eines derartigen Sackes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010008166U1 (de) 2010-07-27 2010-10-21 Papiersackfabrik Tenax Gmbh & Co. Kg Papiersack mit Öffnungsvorrichtung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1208681B (de) * 1959-12-19 1966-01-05 Procter & Gamble Beutelaehnliche Verpackung aus thermo-plastischem Material mit einem Aufreissband
CH384452A (de) * 1961-04-21 1964-11-15 Gutmann Bernhard Kunststoffbeutel
US3175752A (en) * 1963-05-03 1965-03-30 Union Carbide Corp Package tearing means
DK0406613T3 (da) * 1989-07-01 1995-07-10 Nestle Sa Pakning til fødevareprodukt

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202018106868U1 (de) 2018-12-03 2019-01-07 Bischof + Klein Se & Co. Kg Sack und Folienschlauch zur Herstellung eines derartigen Sackes
WO2020115062A1 (fr) 2018-12-03 2020-06-11 Bischof + Klein Se & Co. Kg Sac et film tubulaire destiné à fabriquer un tel sac

Also Published As

Publication number Publication date
EP0620157A3 (fr) 1995-02-15
EP0620157A2 (fr) 1994-10-19
DE9305473U1 (de) 1993-08-05
DE59308222D1 (de) 1998-04-09
ATE163619T1 (de) 1998-03-15

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