WO1999006298A1 - Fermeture pour fermer et refermer un sac, et sac muni d'une telle fermeture - Google Patents

Fermeture pour fermer et refermer un sac, et sac muni d'une telle fermeture Download PDF

Info

Publication number
WO1999006298A1
WO1999006298A1 PCT/EP1998/004739 EP9804739W WO9906298A1 WO 1999006298 A1 WO1999006298 A1 WO 1999006298A1 EP 9804739 W EP9804739 W EP 9804739W WO 9906298 A1 WO9906298 A1 WO 9906298A1
Authority
WO
WIPO (PCT)
Prior art keywords
strip
opening
bag
closure
closure according
Prior art date
Application number
PCT/EP1998/004739
Other languages
German (de)
English (en)
Inventor
Michael Erwin Pfizenmaier
Original Assignee
P + S Mako Verpackungsmaschinen 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 P + S Mako Verpackungsmaschinen Gmbh filed Critical P + S Mako Verpackungsmaschinen Gmbh
Priority to JP2000505071A priority Critical patent/JP2001515826A/ja
Priority to DE59803638T priority patent/DE59803638D1/de
Priority to EP98945111A priority patent/EP0999986B1/fr
Priority to DK98945111T priority patent/DK0999986T3/da
Priority to AT98945111T priority patent/ATE215487T1/de
Publication of WO1999006298A1 publication Critical patent/WO1999006298A1/fr

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
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/1616—Elements constricting the neck of the bag
    • 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
    • B65D63/00—Flexible elongated elements, e.g. straps, for bundling or supporting articles
    • B65D63/10—Non-metallic straps, tapes, or bands; Filamentary elements, e.g. strings, threads or wires; Joints between ends thereof
    • B65D63/1018—Joints produced by application of integral securing members, e.g. buckles, wedges, tongue and slot, locking head and teeth or the like
    • 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
    • B65D2401/00—Tamper-indicating means

Definitions

  • the invention relates to a closure for closing and reclosing a bag, in particular a bag for holding foods, such as bread, confectionery and pasta, consisting of a strip of plastic material which can be placed around a gathered neck of the bag such that one end of the strip with the bag-side side overlaps the other end on the outside thereof and is fixed in this position, the closure being reclosable after opening, and when the strip is opened for the first time, such a structural change takes place on the strip that this opening process can be recognized.
  • the invention further relates to a bag which is provided with such a closure and a clip assembly for applying and closing such a closure.
  • closure fixation is achieved using an adhesive.
  • the structural change when opening for the first time consists of the fact that the strip, at least on the outside, consists of a brittle material which, when opened once, that is to say when the overlapping end is bent open, shows cracks, faults and the like, which can be recognized from the outside. These changes can also be seen when the closure is put back on.
  • Closures of this type also called closure clips, clips or clip strips, are pre-bent in a U-shaped manner via customary known clip assemblies, placed on the neck of the bag, and then the ends are pressed down overlapping one another.
  • the object is achieved in that the strip is made of a thermoplastic material, and that the overlapping end is welded to the underlying end in such a way that an externally visible weld is present, and that when it is opened for the first time in the lifted end an opening is created at the welding point.
  • thermoplastic plastic material opens up the possibility of closing the closure by means of a thermoplastic welding process. Due to the fact that the overlapping end is welded to the end located below, a particularly firmly adhering closure is created by the manufacturer, which is durable in the long run and is not subject to any aging processes as in the case of the adhesive mentioned at the outset. In addition, the unwanted opening by the welding point is also opposed to considerable resistance. The unwanted first opening often takes place at the sales stands, in places that are generally easily accessible and visible. A targeted grasp and a strong jerk is necessary to open the closure. This requires some attention so that the operator cannot observe the surroundings at the same time as to whether a third person is watching this unauthorized opening process.
  • the welding therefore serves several purposes, on the one hand to make the closure strong and durable, and on the other hand to create a clear identifier for opening for the first time.
  • the welding point is a spot welding point, which results from a welding stamp applied radially from the outside, and the material of the overlapping end is partially pushed through the strip and welded to the outside of the underlying end.
  • the spot welding parts can be accomplished by means of a cylindrical, contoured or somehow configured welding stamp, as is usual in this field.
  • the contour can be circular, oval, slit-shaped or multi-digit.
  • At least one tongue which can be bent out of the plane of the strip is stamped into the strip and can be hooked into an opening in the strip when it is closed again.
  • This measure has the advantage that the reclosure can take place mechanically, namely by hooking the tongue into a corresponding opening in the strip. An opening and a tongue can be easily punched or punched into such a strip using conventional equipment.
  • the tongue can be hooked into the opening created when it was opened for the first time.
  • an elongated hole opening is provided in the strip in one end region, through which the other end, which is folded inwards on both sides, can be inserted.
  • This measure has the advantage that the reclosing can also be carried out by means that are simple to achieve mechanically.
  • One end is folded inwards on both sides, creating a strip-shaped end section, the surface of which is rotated by approximately 90 ° to the remaining strip surface in which the elongated hole opening is located.
  • the folded end can now be inserted through this elongated hole and, due to the elasticity of the material, opens again in a V-shape and thus prevents it from being pulled off due to the pressure which the gathered neck of the bag exerts in the direction of expansion.
  • the closure around the neck of the bag can be tightened by pulling on the end when reclosing.
  • the end which has in the meantime been slightly spread, is compressed again and can then be pulled out of the slot opening.
  • the strip has a longitudinal groove in the middle at least on one side, about which an end region of the strip can be folded laterally inwards.
  • This measure has the considerable advantage that the aforementioned folding process takes place easily, exactly in the middle and along the longitudinal groove, so that no special attention needs to be paid to folding.
  • the strip is provided with knurling along its outer longitudinal edges.
  • This measure now has the advantage that, due to the knurling, the edges have a rough, wavy structure which inhibits and blocks the pulling off of a folded end section inserted through the slot opening mentioned above. As a result, the closure is held mechanically particularly securely after reclosing due to the knurling.
  • the strip is provided with a pressure sensitive adhesive on at least one side.
  • This measure has the advantage that the resealing is accomplished via the pressure sensitive adhesive, as is known per se.
  • the strip can then remain adhering to the neck after the bent ends have been bent open, which also makes handling easier.
  • a welding stamp is provided as an additional device, which can be moved radially to the closed clip strip at its overlapping end.
  • This measure has the advantage that the invention can be carried out on conventional clip units for processing conventional clips by means of structurally simple measures, namely by means of an additional device.
  • FIG. 1 shows a cross section of a first embodiment of a closure which is placed around a gathered neck of the bag
  • Fig. 2 is a plan view of the closure of Fig. 1;
  • FIG. 3 shows a representation corresponding to FIG. 2 after opening for the first time by bending open the overlapping end of the closure from FIG. 1;
  • FIG. 4 shows a sectional illustration corresponding to FIG. 1 of the opened closure from FIG. 3;
  • FIG. 5 shows a position after pressing out a tab in preparation for reclosing the closure from FIG. 1;
  • FIG. 4 shows a sectional illustration corresponding to FIG. 1 of the opened closure from FIG. 3;
  • FIG. 5 shows a position after pressing out a tab in preparation for reclosing the closure from FIG. 1;
  • FIG. 5 shows a sectional illustration corresponding to FIG. 1 of the opened closure from FIG. 3;
  • FIG. 5 shows a position after pressing out a tab in preparation for reclosing the closure from FIG. 1;
  • FIG. 6 shows an illustration corresponding to FIG. 1 of this closure after reclosing
  • FIG. 7 shows a top view corresponding to FIG. 2 of the reclosed closure
  • FIG. 8 shows a plan view of an inside of a strip of a second exemplary embodiment of a closure
  • Fig. 9 is a sectional perspective sectional view taken along the line IX-IX in Fig. 8;
  • FIG. 11 shows the strip from FIG. 10 with the end region folded along the central longitudinal axis in preparation for reclosing
  • Fig. 12 shows the closure of Fig. 11 in the re-closed state.
  • FIG. 1 to 7 show a first exemplary embodiment of a closure 10 according to the invention.
  • the closure 10 has an elongated rectangular strip 12 made of a thermoplastic material.
  • the strip 12 is placed around a gathered neck 15 of a plastic bag 14. The inside of the strip 12 lies against the neck 15. An outer overlapping end 20 is placed over an “inner” end 18.
  • the overlapping end 20 is now welded to the end 18 below.
  • a welding stamp 26 is brought radially to the outside 22 of the overlapping end 20 and pressed into the material.
  • the now softened material is partially pushed through the overlapping end 20 and used for welding to the end 18 below.
  • This material 28 therefore lies as a welding material between the ends 18 and 20.
  • the depression 30 on the outside of the overlapping end 20 can be clearly seen, as can the material 28 melted and solidified by the welding stamp.
  • the overlapping end 20 is gripped and pulled off at the extreme end, as in FIG an arrow 19 is indicated.
  • the welding point 24 is now designed such that a continuous opening 34 is formed in the overlapping end 20 during this tearing, and a residue 32 remains on the outside 22 of the end 18.
  • the opening 34 can be clearly seen, even if one tries to put the overlapping end 20 back on the residue 32. Since this residue 32 is quite thin, it is not possible to adhere the end 20 again.
  • a tongue 26 is stamped in the area of the end 18 for reclosing. Before reclosing, this tongue is expressed, as shown by an arrow 37 in FIG. 5. If the closure 10, once opened, is again placed on a bag neck 15, the opened end 20 is brought over the end 18 again, as indicated by an arrow 37 in FIG. 5, and the tongue 36 is pushed into the opening 34, as can be seen from the representations of FIGS. 6 and 7. The raised tongue 36 blocks the opening of the reclosed closure 10.
  • the outer end of the overlapping end 20 is gripped again and pulled off from the tip of the tongue 36 so that it emerges from the opening 34, then the overlapping end 20 can then be bent open again.
  • the closure 50 likewise has a rectangular strip 52 made of thermoplastic material.
  • a longitudinal groove 54 is pressed in the middle.
  • the indentation depth is about 0.1 mm.
  • Both opposite longitudinal edges are provided on both sides with a knurling 56, 57, which is accomplished simply by passing the endless strip, from which the individual strips 52 are cut, between the knurling wheels.
  • the closure 50 is also connected, as previously described in connection with the closure 10, via a weld, not shown here.
  • an opening 60 is created, as described above.
  • the opening 60 has the shape of an elongated hole.
  • the strip 62 is provided with such an opening 60 from the outset, in which case the welding point is then at an adjacent point to the opening 60.
  • the side end regions 62 and 63 opposite the end 58 in the region of the opening 60 are bent up or folded inward about the groove 54.
  • the surfaces of the folded-up end regions 62 and 63 now extend rotated approximately 90 ° about the central longitudinal axis to the remaining surface of the strip 52.
  • the strip 53 thus prepared is now placed with its inside 53 around the gathered neck of the bag, and the folded end regions 62 and 63 are then pushed through the opening 60.
  • the closure 50 By pulling on the end regions 62 and 63 pushed through the opening 60, the closure 50 can be tightened accordingly, so that the neck of the bag is gathered accordingly tightly.
  • the projecting end regions 62 and 63 are then folded up again, pushed through the opening 60, and the closure 50 can be opened again and also closed again.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Package Closures (AREA)
  • Bakery Products And Manufacturing Methods Therefor (AREA)
  • Noodles (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Package Frames And Binding Bands (AREA)

Abstract

Fermeture (10) pour fermer et refermer un sac, notamment un sac destiné à contenir des produits alimentaires tels que pain, pâtisserie ou pâtes alimentaires, comprenant une bande (12) en matière plastique, pouvant être appliquée autour d'un col serré (15) du sac, de telle façon qu'une extrémité (20) de la bande (12) recouvre, par sa face (16) côté sachet, l'autre extrémité (18) sur sa face externe (22) et soit fixée en cette position. La fermeture (10) peut être refermée après une ouverture et, lorsqu'on l'ouvre pour la première fois, la structure de la bande (12) est modifiée de telle sorte qu'on reconnaisse que cette première ouverture ait eu lieu. L'invention est caractérisée en ce que la bande est fabriquée en matière thermoplastique, et en ce que l'extrémité chevauchante (20) est soudée à l'extrémité sous-jacente (18), de manière à avoir un point de soudure visible de l'extérieur, et en ce que, lorsqu'on ouvre le sac pour la première fois, une ouverture se forme dans l'extrémité relevée (20) au point de soudure.
PCT/EP1998/004739 1997-08-01 1998-07-29 Fermeture pour fermer et refermer un sac, et sac muni d'une telle fermeture WO1999006298A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2000505071A JP2001515826A (ja) 1997-08-01 1998-07-29 袋を密封し再密封するためのクロージャ、および、このようなクロージャを有する袋
DE59803638T DE59803638D1 (de) 1997-08-01 1998-07-29 Verschluss zum verschliessen und wiederverschliessen eines beutels sowie beutel mit einem derartigen verschluss
EP98945111A EP0999986B1 (fr) 1997-08-01 1998-07-29 Fermeture pour fermer et refermer un sac, et sac muni d'une telle fermeture
DK98945111T DK0999986T3 (da) 1997-08-01 1998-07-29 Lukning til lukning og genlukning af en pose samt en pose med en sådan lukning
AT98945111T ATE215487T1 (de) 1997-08-01 1998-07-29 Verschluss zum verschliessen und wiederverschliessen eines beutels sowie beutel mit einem derartigen verschluss

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19733294A DE19733294C2 (de) 1997-08-01 1997-08-01 Verschluß zum Verschließen und Wiederverschließen eines Beutels sowie Beutel mit einem derartigen Verschluß
DE19733294.3 1997-08-01

Publications (1)

Publication Number Publication Date
WO1999006298A1 true WO1999006298A1 (fr) 1999-02-11

Family

ID=7837686

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/004739 WO1999006298A1 (fr) 1997-08-01 1998-07-29 Fermeture pour fermer et refermer un sac, et sac muni d'une telle fermeture

Country Status (7)

Country Link
EP (1) EP0999986B1 (fr)
JP (1) JP2001515826A (fr)
AT (1) ATE215487T1 (fr)
DE (2) DE19733294C2 (fr)
DK (1) DK0999986T3 (fr)
ES (1) ES2175775T3 (fr)
WO (1) WO1999006298A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003034307A1 (fr) * 2001-10-19 2003-04-24 Produkt Poolen I Stockholm Ab Procede permettant de lier un produit ou un service a une personne
CN107366782A (zh) * 2017-07-31 2017-11-21 江西清华泰豪三波电机有限公司 一种卡箍装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19941624A1 (de) * 1999-09-01 2001-03-15 Sleven Juergen Hans Peter Clip-Verschluß für kleine Beutel
JP2018047937A (ja) * 2016-09-23 2018-03-29 一洋 橋口 容器及び販売システム
US20240092546A1 (en) * 2022-09-16 2024-03-21 Daikin Comfort Technologies Manufacturing, L.P. Fusible tie band

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1719618A (en) * 1926-08-07 1929-07-02 Smithe Machine Co Inc F L Fastening device
US2156583A (en) * 1937-05-20 1939-05-02 Chaplin Corp Holding and supporting member
US3874034A (en) * 1972-01-10 1975-04-01 Mobil Oil Corp Perforated thermoplastic plastic strap closure affixed to an open mouth bag structure
US4045843A (en) * 1976-09-01 1977-09-06 Amp Incorporated Bundle tie devices and material
EP0416497A1 (fr) * 1989-09-04 1991-03-13 Otto Lücke Pièce d'emballage ou similaire avec banderole en matière plastique
DE4418877A1 (de) 1994-05-30 1995-12-07 P S Spezial Maschf Gmbh Verschluß zum Verschließen und Wiederverschließen eines Beutels sowie Beutel mit einem derartigen Verschluß

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3918426A1 (de) * 1989-06-06 1990-12-13 Sleven Gmbh & Co Kg Clip-verschluss fuer beutel

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1719618A (en) * 1926-08-07 1929-07-02 Smithe Machine Co Inc F L Fastening device
US2156583A (en) * 1937-05-20 1939-05-02 Chaplin Corp Holding and supporting member
US3874034A (en) * 1972-01-10 1975-04-01 Mobil Oil Corp Perforated thermoplastic plastic strap closure affixed to an open mouth bag structure
US4045843A (en) * 1976-09-01 1977-09-06 Amp Incorporated Bundle tie devices and material
EP0416497A1 (fr) * 1989-09-04 1991-03-13 Otto Lücke Pièce d'emballage ou similaire avec banderole en matière plastique
DE4418877A1 (de) 1994-05-30 1995-12-07 P S Spezial Maschf Gmbh Verschluß zum Verschließen und Wiederverschließen eines Beutels sowie Beutel mit einem derartigen Verschluß

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003034307A1 (fr) * 2001-10-19 2003-04-24 Produkt Poolen I Stockholm Ab Procede permettant de lier un produit ou un service a une personne
CN107366782A (zh) * 2017-07-31 2017-11-21 江西清华泰豪三波电机有限公司 一种卡箍装置
CN107366782B (zh) * 2017-07-31 2023-08-15 江西清华泰豪三波电机有限公司 一种卡箍装置

Also Published As

Publication number Publication date
DE19733294A1 (de) 1999-02-04
JP2001515826A (ja) 2001-09-25
DE59803638D1 (de) 2002-05-08
ATE215487T1 (de) 2002-04-15
DE19733294C2 (de) 1999-06-17
DK0999986T3 (da) 2002-07-01
EP0999986A1 (fr) 2000-05-17
EP0999986B1 (fr) 2002-04-03
ES2175775T3 (es) 2002-11-16

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