EP2517972A1 - Clip zum Schliessen eines Beutels - Google Patents

Clip zum Schliessen eines Beutels Download PDF

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Publication number
EP2517972A1
EP2517972A1 EP12165782A EP12165782A EP2517972A1 EP 2517972 A1 EP2517972 A1 EP 2517972A1 EP 12165782 A EP12165782 A EP 12165782A EP 12165782 A EP12165782 A EP 12165782A EP 2517972 A1 EP2517972 A1 EP 2517972A1
Authority
EP
European Patent Office
Prior art keywords
clip
tines
tine
bag
prehensile
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Withdrawn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
EP12165782A
Other languages
English (en)
French (fr)
Inventor
Petter Friberg
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.)
Team Mare Srl
Original Assignee
Team Mare Srl
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 Team Mare Srl filed Critical Team Mare Srl
Publication of EP2517972A1 publication Critical patent/EP2517972A1/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Withdrawn legal-status Critical Current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
    • B65D33/1616—Elements constricting the neck of the bag

Definitions

  • the present invention relates to closing means for bags.
  • the invention concerns clips for closing bags containing mollusc bivalves such as mussels and clams, etc.
  • clips is taken to mean those clips used for closing bags, as this is now the common use of the term.
  • a preformed tubular net is used, made of a plastic material, initially quite limp (a sort of sock) which is inferiorly closed by a first clip, such as to define the bottom of the future pack; after which the tubular net is filled with a certain quantity of loose molluscs.
  • the mesh tube is stretched, by pulling upwards the second of the sock immediately above the part containing the molluscs, such that the net adheres tightly to the molluscs and crams them strongly up against one another.
  • This upper section is then closed by a second clip.
  • the second clip also has the function of maintaining the net well stretched on the packed bivalves, apart from keeping the bag closed.
  • a third clip is applied to the tubular net, above the second, which third clip forms a further point of closure of the tubular net.
  • tubular net is cut between the second and third clips, such as to inferiorly define a closed mesh bag in which the molluscs are packed, with the third clip functioning's the first clip for inferiorly closing a next bag for molluscs, about to be formed.
  • the bag of the final pack is, clearly, no longer limp but is strongly stretched on the valves of the molluscs and is stretched thereby.
  • a type of bag is used, still quite limp, available on the market in a form in which the bottom is already closed (for example by stitching) and with an upper opening.
  • the clips at present used in the packs of bivalve molluscs is a metal staple, which in practice is a staple formed by a short metal segment, usually aluminium, in a U-shape, which receives a section of the bag, and is deformed by known dedicated apparatus that ring-close it by crushing such as to close the bag and keep it well stretched over the molluscs.
  • a very widely felt need in the market of bivalve mollusc commerce is to be able to avail of packs that before being put up for sale can be subjected to a scan using metal detectors in order to check that among the packed molluscs there are not also undesired metal objects.
  • plastic clips in the initial open configuration, have substantially a U-shape, or a horseshoe shape, and conform two straight tines that project from a common curved tract connecting them.
  • the bag has to be inserted between the tines, which are then deformed by crushing, again using special and known apparatus, thus ring-closing the clip on itself such that one of its tines is superposed on the other.
  • the tines of this known clip abut and slide against and on one another, i.e. they slide in such a way that one of the two bends upwards while the other bends downwards, such that they are not only parallel but also one above another, and define, together with the connecting tract, a closed configuration of the clip in which it takes on the shape of a "tarallo", i.e. an overlapping ring shape.
  • the known plastic clips exhibit a drawback which makes them poorly adapted for use in the technical sector of packing live bivalve molluscs.
  • the known plastic clip is unsuitable for closing or maintaining closed a bag for packing live bivalve molluscs, and naturally also for keeping them well packed on each other.
  • the aim of the present invention is to obviate the above-described drawbacks and others besides by making available a clip for closing and maintaining closed a container, such as for example the above-described bags, realised according to claim 1.
  • the disclosed clip is made of a plastic material, of an inelastic type, and conforms at least two tines which project from a base portion which connects them.
  • the clip exhibits an open configuration in which the tines are apart to enable receiving a section of the bag between the tines, and is destined to deform into a plurality of closed annular configurations, in which the tines are curved such as to define, together with the base portion, a circumscribed internal space having a size that depends on the curvature of the tines.
  • the tines have shapes that in every closed annular configuration at least a curved tine engages another such as to conserve the size of the respective circumscribed internal space.
  • the clip of the invention comprises at least three tines, of which at least a pair of prehensile tines comprising an upper prehensile tine and a lower prehensile tine, the first arranged above the second at such a distance that following the deformation of the clip, the third tine can be received interferingly between the first two.
  • the clip When the clip is applied to the bag such as to close it and keep it stretched on the group of molluscs contained in the bag, it solidly presses the walls of the bag at a closure point and retains it in the circumscribed internal space.
  • the apparatus dedicated to application of the clips, not described herein because they are without the scope of the invention, bend the tines, curving them, so that they embrace a section of the bag which, as explained above, has been pulled upwards such as to place the bag in tension.
  • the degree of folding which is correlated to the size of the circumscribed internal space, is a function of the dimensions and resistance offered by the section of the bag which is crushed at the point of closure.
  • the size of the internal space will be greater with respect to a case in which the walls are thin and/or in part deformable.
  • the clip has to solidly close and keep the bag stretched also in a case in which it is desired to apply a label, typically such as to indicate data relating to the product and/or commercial information, such as for example marks, which label is applied to the bag inserting a small end tail at the opening, at the point where the bag is to be closed, before applying the clip.
  • a label typically such as to indicate data relating to the product and/or commercial information, such as for example marks
  • the proposed clip when applied to close the stretched bag, self-adapts to the bag.
  • the invention is able to provide a clip that resists the above-described stresses that the tensed bag unloads on it.
  • the clip is preferably made in a single body and of polycarbonate, a non-toxic material which has good plasticity characteristics.
  • Each clip forms at least two tines that protrude from a base portion connecting them.
  • the clip has an initial open configuration A, which is the configuration in which it is removed from the mould, or in any case in which it is presented at the end of the manufacturing process.
  • the open configuration A is to be understood as a configuration of the clip prior to its deformation and as the configuration exhibited by the clip before being fixed to the container, which for the purposes of the present will be assumed to be a mesh bag 4, for ease of description.
  • the open housing K is defined by the internal lateral edges of the tines and from the internal edge (or face) of the base portion (better described hereinafter in the specification of different embodiments).
  • this open housing K is the space between the tines, when the clip is in the open configuration A, in which the bag 4 is yet to be inserted between the tines.
  • the bag 4 After a section of the bag 4, for example in proximity of the rim of its opening, is received between the tines, the bag 4 can be closed by means of deformation of the clip, using dedicated equipment, not described herein as falling without the object of the invention.
  • the tines of the clip bend in a hook-shaped or semi-annular shape, or the like.
  • the terms 'upper' and 'lower' refer to the operation where the clip is normally applied to the bag 4 i.e. with the tines horizontal and in any case as shown in figure 6 .
  • the tines 2, 3 of the clip 1 in the open configuration A are straight.
  • the clip 1 comprises a first tine which is a prehensile tine 2 and in turn comprises: an upper element 21 and a lower element 22, joined at a respective outer side edge 23, 24 by a joining wall 25, which is also a part of the first tine 2.
  • the above-mentioned upper and lower elements 21, 22 can be flat, as shown in the figures, and the second tine 3 can comprise, in turn, a flat insertion element 3.
  • the upper and lower elements 21, 22 of the first tine 2 are inclined with respect to the joining wall 25 so as to define an undercut cavity 26 suitable for receiving the insertion element 3.
  • the different possible closed configurations C of the clip 1 depend on how far the insertion element 3 can be inserted in the cavity 26; this, in turn, depends on the bag 4 which is to be closed and held tight.
  • the undercut cavity 26 has such dimensions as also to involve the insertion element 3 by interference.
  • the engagement between the prehensile tine 2 and second tine 3 is even stronger if the insertion element 3 has a thickness that increases from its internal lateral edge (not directly visible in the figures) towards the opposite external lateral edge 32, so that the insertion element 3 itself has a complementary shape to the undercut 26.
  • a feature of the clip 1 is constituted by the fact that the tine 2 which conforms the housing is the prehensile tine, which in the closed annular configurations C covers the outside and engages and abuts the second tine 3; thus the second tine 3, which instead remains internal, is the one that is directly stressed, and in any case is stressed more greatly stressed, by the bag in tension.
  • the flat element 3 can be tapered towards the free end 33 thereof.
  • the base portion 5 joining the tines 2, 3 can conform a projection 6 arranged between the tines 2, 3 (that is, extending towards the circumscribed internal space O or towards the open housing K of the clip 1, depending on which configuration it assumes).
  • the tines are distant in the open configuration A of the clips 1 (i.e. with a wide common portion 5), to facilitate the insertion between the tines of the section 4 of the bag to be closed; while on the other hand, this might lead, in some cases, to defining a lower limit for the dimensions of the circumscribed internal space 0, that is, a minimum width defined by the maximum curvature that the tines can have.
  • the projection 6 can for example be conical or cylindrical, pointed, bevelled, etc.
  • the projection 6 described here for the first example can also be present in the other examples, and in the clip 1000 of the invention, and will not be further described herein below.
  • the clip 10 of the second example is illustrated in figures 3 and 4 , and it too can have a horseshoe shape 20, 30, with straight tines, when it is in the initial open configuration A.
  • the first tine is a receiving tine 20
  • the upper and lower flat elements 210, 211 whereof are united by the joining wall 250 at the respective internal lateral edge 230, 240 to define a housing for the second tine 30 which includes an undercut cavity 260, which in contrast to that of the first embodiment is in this case directed towards the outside.
  • the second tine 30 of the clip 10 that acts as a prehensile tine for engaging to the other tine 20.
  • the tines are bent towards one another, with the flat element 30 of the second tine inserted into the cavity 260 and abutting with the outer surface 270 of the joining wall 250, covering it externally in various possible closed annular deformed configurations C of the clip 10.
  • the external surface 270 of the joining wall 250 is external with respect to the above-mentioned internal space O (or relative to the open housing K) but is internal of the undercut cavity 260.
  • the curvature and therefore the length of the tract of second tine 30 inserted in the cavity 260 determines the size of the circumscribed inner space O, which size is maintained by the engagement between the tines 20,30.
  • the second tine 30, when curving, can engage the first tine 20, which is also curved, covering and abutting the joining wall 250 and covering it externally.
  • the second different aspect from the previous example is related to the idea of causing the thickness of the flat element of the second tine 30 to grow from its external lateral edge opposite to the internal lateral edge 340, so that the flat element 30 has a complementary shape with respect to the undercut housing 260.
  • the clip 10 can iunclude a receiving tine that has the shape of an upturned "C".
  • clips 10 can be realised in which the first receiving tine 20 has an upturned-C-shaped cross section but does not have an undercut cavity.
  • the flat element 30 of the second tine can be tapered towards the free end 330.
  • variants can be provided of the first and second examples, having in common the fact that the second tine comprises a flat element and the fact that the first tine comprises an flat upper element arranged above the lower flat element at a distance there-from that is such that in the closed configuration C of the clip, the flat element of the second tine is interferingly received between the upper member and the lower member of the first tine.
  • the flat element of the second tine is in a median plane with respect to the plane containing the flat upper and lower elements.
  • the thickness of the flat element of the second tine can vary in different ways between the internal lateral edge and the opposite external lateral edge thereof.
  • FIG. 11 A further example is represented in figures 11 and 12 , where the clip 100 can be seen in the open configuration A, in which it has a horseshoe shape, with straight tines 200, 300, and in a closed annular configuration in which it has already been deformed.
  • the first tine is a female tine and the second tine is a male tine 300;
  • the female tine comprises a sleeve 200 provided with a cavity 2600 having an opening 261 at the free end 280 of the female tine, which cavity 2600 is suitable for receiving the male tine 300.
  • the engagement which maintains it constantly in the assumed deformed shape develops between the external lateral surface 2700 of the cavity 2600 and the surface of the external lateral edge 3200 of the male tine 300, which, preferably, comprise a respective roughened surface.
  • the roughened surfaces which can each include a knurling, are arranged such as to adhere to one another following insertion of the male tine 300 in the sleeve 200 of the female tine.
  • the cavity 2600 of the sleeve 200 of the female tine may be large enough to interferingly accommodate the male tine 300.
  • the male tine 300 can comprise a flat inserting element, for example tapered in the direction of a free end thereof, such as to facilitate its insertion into the cavity 2600 of the sleeve 200.
  • the abutment surface is the external lateral edge 32 of the second tine 3; in the second example it is the external lateral surface 270 of the joining wall of the first tine 20; while in the third it is the external lateral edge 3200 of the second tine.
  • FIG. 5 A fourth example is illustrated in figure 5 , in which the clip 11 is shown in its deformed ring configuration C.
  • This clip 11 has a first prehensile tine 22 that is coplanar with the second tine 33, with the clip 11 which, following the deformation thereof, assumes a closed configuration C in which it has a spiral development, with the prehensile tine 22 abutting and externally covering the second tine 33, and by doing engages it.
  • the prehensile tine 22, the base portion 5 and the second tine 33 of the clip 11 are defined in a single piece having a cylindrical shape.
  • the clip 11 In its open configuration A, the clip 11 can have a horseshoe shape.
  • the clip 1000 of the invention is shown in figures 7, 8, 9 and 10 .
  • the clip 1000 of the invention has at least three tines 2001, 2002, 3000, of which at least a pair of prehensile tines comprising a prehensile upper tine 2001 and a lower prehensile tine 2002, the first arranged above the second at a distance such that, as a result of the deformation of the clip 1000, the third tine 3000 can be received with interference between the first two.
  • the thickness of the engageable tine 3000 decreases from the internal lateral edge 3012 to the external lateral edge 3013, and instead the thickness of the tines prehensile 2001, 2002 grows between the respective internal lateral edge 2011 , 2012 and the respective external lateral edge 2111, 2112, so as to have the advantages of complementarily-shaped engagement between the space defined by the prehensile tines and the third tine.
  • the thickness of the tine engageable 300 and the thickness of each of the two prehensile tines 2001, 2002 can vary in different ways between the respective internal lateral edge 3012, 2011, 2012 and the respective external lateral edge 3013, 2111, 2112 opposite the internal edge.
  • the tines 3000, 2001, 2002 of this embodiment may be tapered towards the free end thereof.
  • a container 4 closed by at least one clip 1000, according to the invention, and deformed into an annular closed C is a package in which the molluscs are maintained pressed against one another so that the valves thereof do not open, and able to give a good guarantee to the consumer that the contents have not been manipulated following closure.
  • the pack is also suitable for scanning by metal detectors without giving false positive signals.
EP12165782A 2011-04-29 2012-04-26 Clip zum Schliessen eines Beutels Withdrawn EP2517972A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000236A ITBO20110236A1 (it) 2011-04-29 2011-04-29 Clip di chiusura per un sacchetto

Publications (1)

Publication Number Publication Date
EP2517972A1 true EP2517972A1 (de) 2012-10-31

Family

ID=44554137

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EP12165782A Withdrawn EP2517972A1 (de) 2011-04-29 2012-04-26 Clip zum Schliessen eines Beutels

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EP (1) EP2517972A1 (de)
IT (1) ITBO20110236A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020528033A (ja) * 2017-06-30 2020-09-17 コルテス，ホセ アントニオ ゴンザレス 袋の密閉具

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2153895A (en) * 1984-02-10 1985-08-29 Andrew Lindsay Grieve Closure device for flexible containers
GB2201651A (en) * 1987-02-26 1988-09-07 Bowthorpe Hellermann Ltd Closing bags
US4878702A (en) * 1986-05-29 1989-11-07 Emc-Tamaco A/S Method, a binder and a binding machine for closing hose or bag shaped packings, primarily tubular foodstuff packings
DE19527876A1 (de) * 1995-07-29 1997-01-30 Poly Clip System Gmbh & Co Kg Verschlußklammer
DE20117733U1 (de) * 2001-10-30 2003-03-20 Vermee Frans Gmbh Verschlusselementeband
US20070289252A1 (en) * 2005-02-04 2007-12-20 Poly-Clip System Corp. Clip and clipper

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2153895A (en) * 1984-02-10 1985-08-29 Andrew Lindsay Grieve Closure device for flexible containers
US4878702A (en) * 1986-05-29 1989-11-07 Emc-Tamaco A/S Method, a binder and a binding machine for closing hose or bag shaped packings, primarily tubular foodstuff packings
GB2201651A (en) * 1987-02-26 1988-09-07 Bowthorpe Hellermann Ltd Closing bags
DE19527876A1 (de) * 1995-07-29 1997-01-30 Poly Clip System Gmbh & Co Kg Verschlußklammer
DE20117733U1 (de) * 2001-10-30 2003-03-20 Vermee Frans Gmbh Verschlusselementeband
US20070289252A1 (en) * 2005-02-04 2007-12-20 Poly-Clip System Corp. Clip and clipper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020528033A (ja) * 2017-06-30 2020-09-17 コルテス，ホセ アントニオ ゴンザレス 袋の密閉具

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Publication number Publication date
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