EP1508526A1 - Zugbeutel mit zweiteiligen Zugband - Google Patents

Zugbeutel mit zweiteiligen Zugband Download PDF

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Publication number
EP1508526A1
EP1508526A1 EP04292038A EP04292038A EP1508526A1 EP 1508526 A1 EP1508526 A1 EP 1508526A1 EP 04292038 A EP04292038 A EP 04292038A EP 04292038 A EP04292038 A EP 04292038A EP 1508526 A1 EP1508526 A1 EP 1508526A1
Authority
EP
European Patent Office
Prior art keywords
bag
elastic
lateral
link
links
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.)
Withdrawn
Application number
EP04292038A
Other languages
English (en)
French (fr)
Inventor
John Persenda
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.)
SP Metal SA
Original Assignee
SP Metal SA
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 SP Metal SA filed Critical SP Metal SA
Publication of EP1508526A1 publication Critical patent/EP1508526A1/de
Withdrawn legal-status Critical Current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
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/28—Strings or strip-like closures, i.e. draw closures

Definitions

  • the present invention relates to a bag, particularly in plastic material, in particular a garbage storage bag housewares, of the type called "sliding link", having an opening lined with a sheath in which is arranged a sliding link prehensile from the outside.
  • plastic bags are stored in plastic bags.
  • plastic bags include, generally, two plastic faces connected to each other on their periphery by providing an opening area.
  • These bags have the more often a rectangular shape, although other forms are possible: for example, the bottom of the bag may have a rounded shape.
  • the bags according to the present invention are not limited to this form.
  • the bags can be prepared from two sheets rectangular plastic material, by welding three sides of the rectangle and leaving the fourth side open. They can also be prepared from a single sheet of plastic material that is folds, either to form the bottom of the bag, or to form a lateral side of the bag, two of the other sides being heat-welded. In known manner, in the bags, the faces can be connected together by a bellows at the bottom and / or at the side, preferably two lateral sides.
  • link bags in which the opening of the bag, whatever it is, is lined a sheath in which a link is slidable.
  • the link may consist of a single strand, both ends of the link being fixed between them. It can also consist of two strands, each strand being fixed by each of its ends to the sheath.
  • the link is preferably a plastic tape likely to be heat-sealed.
  • the sheath is usually prepared by folding the sheet of plastic material parallel to the opening and heat-sealing parallel to the edge of the film.
  • the sheath can be continuous or formed two separate parts. This is particularly the case when bags are formed by thermo-welding of the lateral sides and that the sheath is formed by folding the plastic sheet before heat-sealing lateral sides.
  • the aforementioned elastic sliding link bags have a double disadvantage, because of the presence lateral recesses, relatively deep, which are arranged on the longitudinal edge of the bag opening.
  • the presence of these relatively wide swaths presents on the one hand the disadvantage of do not allow the bag to be completely closed when the links sliding are knotted after filling the bag. Indeed, during the transport or storage of bags filled with waste, waste could escape by these hips.
  • the presence of these relatively wide recesses decreases the length of sheath in contact with the link, and therefore weakens the bag when it is transported full using the elastic sliding link as a handle.
  • German utility model DE-202 07 942-U1 provides recesses arranged in the vicinity and away from the side edges of the bag, so that the links elastic sliders remain linked at their lateral ends to lateral edges of the bag, the welds of the elastic links delimiting the length at rest elastic links being accessible at the level said recesses.
  • the ends of the links sliders are no longer free, but connected to the lateral edges of the bag.
  • all these elastic slider bags have for common disadvantage the fact that the elastic link may not have sufficient tensile strength to support a weight waste in the bag during transport.
  • the sliding link which is usually used as a handle by the user when transporting the bag, risk of elastic stretching, which can drag the bag onto the ground, or to bring it down sufficiently for him to obstacles, which is a major inconvenience for the user.
  • All these elastic tie bags also have the common disadvantage of not being able to be completely closed by their elastic link and therefore leave openings through which waste can escape.
  • the invention therefore aims to propose a bag of the type to elastic sliding link for elastically fixing the periphery of the bag on a receptacle, which makes it possible to avoid or limit the risks of waste outside the bag, after closing the bag with the help of sliding links.
  • the invention also aims to limit the risk of rupture or tear of the elastic sliding link or the risks of elastic deformation of the sliding link during transport of the filled bag including waste.
  • the subject of the invention is a bag made of two interconnected faces all around their periphery, with the exception of one edge longitudinal, the bag having an opening opening on said edge longitudinally, both sides of the bag being welded to each other along two opposite lateral edges, each face having a sheath bordering said opening and in which is arranged a sliding link, each link being grippable from the outside by at least one lateral recess formed through said sheaths in the vicinity of a side edge of the bag, the ends of the links being fixed to each other at the level of each lateral recess by a so-called weld zone intermediary, so that the links form a closed loop whose length of the periphery is less than that of the longitudinal edge of the bag, characterized in that one of the two links has an elasticity sufficient to allow for its extension with a retracting effect and the other of said links is substantially non-elastic material.
  • each Lateral recess is spaced from the side edge adjacent to the bag by a sheath section and at least the ends of the non-elastic sliding link are attached to the side edges of the bag.
  • only the non-elastic link is attached to the side edges of the bag, the link being attached only to the non-elastic link, at the level of the lateral recess, by said intermediate weld zone.
  • the two links elastic and non-elastic, are connected to the lateral edges of the bag, in a similar way to both elastic bonds described in the German utility model DE-202 07 942-U1.
  • the bag comprises two recesses lateral to the vicinity of each side edge of the bag.
  • the two lateral recesses extend to the center of the bag to form together only one central recess.
  • the bag comprises only one lateral recess, the other ends of the sliding links being fixed to the other edge side of the bag.
  • the bag has another recess in the middle part of each sheath.
  • the elastic link is ethylene vinyl acetate (EVA) and the non-elastic bond is in high density polyethylene (HDPE).
  • EVA ethylene vinyl acetate
  • HDPE high density polyethylene
  • the bag 1 consists of two faces substantially parallel la, 1b rectangular, faces la, 1b being made of the same plastic sheet which is folded for forming the bottom 1c of the bag, this bottom 1c being rounded when the bag is in portage position, as shown in Figure 2.
  • the faces la and 1b are brought against each other and are connected at the bottom 1c by a flat fold, as shown in Figure 1.
  • the faces 1a and 1b are interconnected by corresponding welds 2a and 3a. These welds 2a and 3a extend substantially over the entire height of the bag 1 and form a vertical line, but these welds may not be linear but extend over the entire marginal area of the bag.
  • the periphery of the bag comprises an opening zone 1d defined along the longitudinal edge of each face 1a and 1b, the longitudinal edge of each face 1a and 1b is extending, at the opening zone 1d, by an internal fold 4, one end of which is welded to the corresponding side of the bag by a longitudinal weld 4a.
  • This fold 4 extends beyond the weld longitudinal 4a by a skirt 4b, which can be free or itself welded to the corresponding side of the bag.
  • the longitudinal weld 4a is preferably continuous on the entire length of the bag. It can also be non-continuous, in lines interrupted or dotted.
  • Each welded fold 4 defines a sheath whose housing interior 5 receives a strand 6a or 6b of the sliding link 6.
  • the strand 6a of the link slider 6 is, for example, made of a strip of elastic material and the strand 6b of a band of non-elastic material, the two bands being of different color from the color of the leaf constitutive of the faces the and 1b and the two strands can themselves be distinguished by colors different.
  • the sliding links 6 are welded at one end to the bag 1 at the side edge 3, simultaneously with the thermo-welding of the welding line 3a.
  • each sliding link 6 is accessible from the outside, thanks to a lateral recess 7 practiced in the walls of each sheath 4, along the free edge of the opening zone 1d from the bag.
  • each recess 7 is obtained by cutting, in a semicircle shape, the two walls of each fold 4.
  • the recesses 7 may have a shape any, for example rectangular or other.
  • the bag 1 is of the type with only one lateral recess 7, but in FIG. represented a bag 21 having two lateral recesses 7.
  • the lateral recess 7 is formed through the sheaths 4, in the vicinity of the side edge 2 of the bag, but away from it, in order to provide a section of sheath 8 between the lateral edge 2 and lateral recess 7.
  • the sliding link is called composite or bi-material because each strand is made of different material, one of elastic material and the other of substantially non-elastic material.
  • strand 6a is in an elastic material, for example ethylene vinyl acetate (EVA) or thermo-plastic rubber, or elastomeric polyolefin, or else a mixture of elastomeric rubber and polyethylene low density, as indicated for example in US Patent 5,133,607.
  • EVA ethylene vinyl acetate
  • the other strand 6b is, for example, made of plastic material, for example high density polyethylene.
  • the two strands 6a and 6b are welded at one end with the side edge 3 of the bag along the transversal weld 3a, while the opposite ends of the two strands 6a and 6b are welded together along a so-called transverse weld 9 intermediate at the level of the lateral recesses 7.
  • the distance L2 between the transverse weld 9 and the weld 3 a on the opposite lateral edge is substantially less than the length L1 between the welds 2a and 3a two lateral edges 2 and 3 of the bag, so that the sliding link 6 define a closed loop whose periphery is of length less than that of the longitudinal edge of the bag.
  • Both strands 6a and 6b extend beyond the weld transverse 9 by two link portions 9a and 9b respectively, whose ends are connected to the opposite side edge 2 of the bag, simultaneously with the transverse weld 2a.
  • the links 9a and 9b of the link are partially housed in the 8 sheath section on each side of the bag.
  • one of the two strands is made of elastic, it can stretch elastically to maintain elastically the bag on the periphery of a trash.
  • link 6 is attached to the sheath on both side edges of the bag, it is easier to pull on the link 6 from the recess 12, to cause the closing the bag 1, causing the sheath to fold at the level of the opening 1d of the bag.
  • strand 6b is made of non-elastic material, and that strand 6b is bonded at both ends to the side edges of the bag, the link 6a will not be able to lengthen elastically during transport, whatever the size or weight of the bag.
  • the recess 12 extends only over part of the height of the link sliding 6, unlike the recess 7 which must extend over any the height of the sliding link 6, in order to release at the level of the recess 7 the link 6 of the sheath.
  • reference numeral 1 is indicated by inside the bag, in the open position.
  • section 9a of the elastic strand 6a can be deleted or cut, because the essential lies in the presence of section 9b non-elastic link, which ensures the mechanical strength of the link sliding during transport.
  • this portion 9a of the elastic strand does not participate in the elastic deformation of the sliding link, during the mounting the bag on a receptacle.
  • the bag 21 of Figure 3 is essentially different from the bag of FIG. 1 in that the lateral recess 7 is provided for each side of the bag, so that the length at rest L3, ie in a state not stretched elastic link, is still less than the length L2 on the Figure 1.
  • the ratio of the two lengths L1 and L2 or L1 and L3 is determined according to the elasticity of the material, its resistance at break, and the holding force that one wishes to obtain on the receptacle.
  • the bag 31 is essentially different from the bag 21 by the fact that the recess 37 extends substantially from a border to the other of the bag, revealing the sliding link 6 over its entire length between transverse welds 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Refuse Receptacles (AREA)
EP04292038A 2003-08-13 2004-08-11 Zugbeutel mit zweiteiligen Zugband Withdrawn EP1508526A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0309891 2003-08-13
FR0309891A FR2858808B1 (fr) 2003-08-13 2003-08-13 Sac a lien coulissant composite

Publications (1)

Publication Number Publication Date
EP1508526A1 true EP1508526A1 (de) 2005-02-23

Family

ID=34043775

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04292038A Withdrawn EP1508526A1 (de) 2003-08-13 2004-08-11 Zugbeutel mit zweiteiligen Zugband

Country Status (2)

Country Link
EP (1) EP1508526A1 (de)
FR (1) FR2858808B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTV20130215A1 (it) * 2013-12-24 2015-06-25 Amutec Srl Con Socio Unico "un sacchetto per la spazzatura in materiale termoplastico con stringhe di allaccio incorporate"
EP3778416A1 (de) * 2019-08-13 2021-02-17 pely-plastic GmbH & Co. KG Zugbandbeutel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6059458A (en) * 1999-02-05 2000-05-09 Tenneco Packaging, Inc. Elastic top drawtape bag and method of manufacturing the same
EP1013567A1 (de) * 1998-12-23 2000-06-28 Innovative Elastics Ltd. Müllbeutel
DE20207942U1 (de) * 2002-05-22 2002-08-22 Melitta Haushaltsprodukte Beutel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5133607A (en) 1991-04-22 1992-07-28 Reynolds Consumer Products Inc. Plastic liner bag with elastic top tie strip
FR2777866B1 (fr) 1998-04-28 2000-06-16 Sp Metal Sac a double usage comportant des liens coulissants
ATE256602T1 (de) 2001-01-24 2004-01-15 Sp Metal Kette von zugbeutel und verfahren zu ihrer herstellung
DE20110350U1 (de) 2001-06-22 2001-09-13 Melitta Haushaltsprodukte Beutel
DE10151843A1 (de) 2001-10-24 2003-05-08 Lemo Maschb Gmbh Beutel aus thermoplastischer Kunststofffolie

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1013567A1 (de) * 1998-12-23 2000-06-28 Innovative Elastics Ltd. Müllbeutel
US6059458A (en) * 1999-02-05 2000-05-09 Tenneco Packaging, Inc. Elastic top drawtape bag and method of manufacturing the same
DE20207942U1 (de) * 2002-05-22 2002-08-22 Melitta Haushaltsprodukte Beutel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTV20130215A1 (it) * 2013-12-24 2015-06-25 Amutec Srl Con Socio Unico "un sacchetto per la spazzatura in materiale termoplastico con stringhe di allaccio incorporate"
EP3778416A1 (de) * 2019-08-13 2021-02-17 pely-plastic GmbH & Co. KG Zugbandbeutel

Also Published As

Publication number Publication date
FR2858808B1 (fr) 2005-10-28
FR2858808A1 (fr) 2005-02-18

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