EP2354022A1 - Couvercle de boîte et procédé de fabrication d'un couvercle de boîte - Google Patents
Couvercle de boîte et procédé de fabrication d'un couvercle de boîte Download PDFInfo
- Publication number
- EP2354022A1 EP2354022A1 EP10001041A EP10001041A EP2354022A1 EP 2354022 A1 EP2354022 A1 EP 2354022A1 EP 10001041 A EP10001041 A EP 10001041A EP 10001041 A EP10001041 A EP 10001041A EP 2354022 A1 EP2354022 A1 EP 2354022A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lid
- receiving part
- collar part
- collar
- opening
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 84
- 239000004033 plastic Substances 0.000 claims abstract description 66
- 238000004873 anchoring Methods 0.000 claims description 30
- 239000003566 sealing material Substances 0.000 claims description 22
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 238000005507 spraying Methods 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 238000001746 injection moulding Methods 0.000 claims description 7
- 235000013361 beverage Nutrition 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 230000000295 complement effect Effects 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 2
- 230000009969 flowable effect Effects 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000007767 bonding agent Substances 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- 239000004922 lacquer Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000009928 pasteurization Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004905 finger nail Anatomy 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 238000010943 off-gassing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Images
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
- B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
- B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
- B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
- B65D17/4012—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening partially by means of a tearing tab
- B65D17/4014—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening partially by means of a tearing tab and provided with attached means for reclosing or resealing
-
- 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
- B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
- B65D2517/0001—Details
- B65D2517/001—Action for opening container
- B65D2517/0013—Action for opening container pull-out tear panel, e.g. by means of a tear-tab
-
- 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
- B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
- B65D2517/0001—Details
- B65D2517/0031—Reclosable openings
- B65D2517/0038—Reclosable openings the plug being reinsertable into the opening
-
- 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
- B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
- B65D2517/0001—Details
- B65D2517/0031—Reclosable openings
- B65D2517/0046—Unusual reclosable openings
Definitions
- the invention relates to a can lid with a resealable opening, in particular for beverage cans, with a limited by a circumferential, provided in the metallic cover material Aufr Employkerbe opening area, and a specific for breaking the tearing notch two-armed lever member which is connected on the one hand with a pull tab and the other part of the opening area the lid surface acts and is supported by a force applied to the pull tab opening force translating bearing. Furthermore, the invention is directed to a method of manufacturing a can lid as well as cans equipped with such a can lid.
- a can lid having a reclosable opening in which an opening is made in the metallic can lid and the edge of that opening is crimped to provide anchoring for a prefabricated plastic closure.
- the plastic closure part comprises a base part to be connected to the beaded edge of the can opening, in which opening formed by a flat plug is formed.
- the flat plug is connected to the opening edge via a plastic tear seam, so that the flat plug connected to a pull tab can be released by pulling over the tear tab of the plastic base part and pivoted into an open position.
- the opening can be preferably conical by pressing the on its underside trained Flachstopfens be temporarily closed again.
- a can lid having a reclosable opening in which an opening is also made in the metallic can lid into which a prefabricated, tearable plastic closure member is inserted, the prefabricated plastic member has a double flange at the edge into which engages the edge of the punched can opening and is fixed in it.
- the prefabricated plastic element comprises a closure part, which is connected to the peripheral edge of the plastic part via a tear seam.
- a pull tab connected to the closure part makes it possible to tear open the plastic tear seam between the peripheral area of the plastic part and the lid part and thus release the can opening.
- the closure part which preferably remains in contact with the peripheral area via a tab region, can be pressed back into the opening.
- a resealable can lid is known in which in particular the emergence of sharp edges should be avoided, as they arise when tearing ordinary tin cans over a tab.
- a prefabricated plastic part is snapped into a provided in the metallic can lid punched, which has a lid part which is connected via a thin plastic wall with the snapped into the can opening base part.
- the closure part is designed so that it engages to reclosure of the opening via a snap-locking connection in the base part.
- a beverage can with a lid consisting of sheet metal in which a weakening line is formed and delimited by the weakening line lid part is detachable by means of a pull tab, wherein on the lid captive a substantially parallel to the lid surface pivotable closure part is attached to the removal opening.
- a metal lid for beverage cans which has a pre-punched pouring opening in the lid surface, which is sealed by a closure element and after the first opening is again tightly closed.
- the lid and closure element can be positively connected to one another by means of bayonet-like interlocking elements, which are formed directly from the lid material or the closure element.
- the object of the invention is to provide a can lid, in particular for beverage cans, with a reclosable opening which not only processes a can filling line in the facilities available, i. applied to the can and can be connected to this air and gas-tight, but above all ensures a high-quality, gas-tight and liquid-tight seal in the reclosable opening, which withstand required pasteurization occurs high internal pressures, only low opening and Wiederver gleich concept requires and in particular also allows one-handed operation when opening and closing.
- the opening portion is formed as a closure lid and adjacent to its outer edge of the tear notch frictionally connected to a collar part of a first plastic material that the collar part a outside the opening area and the tear notch adjacent to the lid surface frictionally connected lid receiving part is assigned from a second plastic material, that the collar part engages over the lid receiving part and between the collar part and the lid receiving part a sealing snap-locking connection is formed with a circumferential dome rib and a complementary shaped recess and that the pull tab is fastened radially outside the lid receiving part to a fixing region of the collar part and the two-armed lever for breaking the tear notch of a Fixing region associated part-circumferential region of the collar part is formed.
- lid receiving part and collar part according to the invention in the lid having a circumferential tearing notch a very compact, liquid-tight and gas-tight reclosable unit is created on the one hand which can be opened with little force by exploiting a partial circumferential region of the collar part as supported on the lid receiving part lever and easily meets the required requirements for tightness in the case of reclosing the can opening due to the provided positive snap-locking connection.
- the fixing region between the collar part and at least one provided on the cover surface anchoring element is provided a pivot plate connection, wherein anchoring part, pivot plate connection and collar part made of the same plastic material.
- the pull tab consisting of a third plastic material rests on the collar part in the resting state and extends from the fixing region approximately to the opposite inner edge of the collar part, wherein the elasticity of the material of the pull tab is greater than the elasticity of the material the lid receiving part, which in turn is in turn more elastic than the material of the collar part when the lid receiving part of the snap-locking connection associated recess is provided.
- This embodiment promotes easy handling while minimizing the space required for the pull tab.
- an embodiment of the invention is characterized in that the non-positive connection of the collar member with the metallic opening portion and the lid receiving part with the lid surface respectively over The circumference distributed openings or passages provided in the lid material and these breakthroughs or passages on both sides of the lid material edge-spanning with the respective plastic material are gas-tight encapsulated. It is particularly advantageous if the faces and the adjacent edge regions of the openings or passages are previously encapsulated with a fourth plastic material in the form of an elastic sealing material and this sealing material by the surrounding him and connecting it with plastic material of the collar part or the lid receiving part under bias is set.
- a known buckling spring element integrated, which holds during pivoting of the cover part performing collar part over a Aufschwenkwinkel of advantageously more than 90 ° this cover part in the pivoted position.
- a pivoting back of the cover part is possible without problems in connection with such a buckling spring element.
- the height of the above the metallic lid surface located structure of lid receiving part, collar part and pull tab is designed so that it is less than the distance between the lid surface and bead , It is also possible to keep the can lid circumference free while maintaining a second can, which is parked on a can lid, and at the same time to ensure that the plastic components are spatially compact enough to fit into the inside arch usually formed in a can bottom.
- the pull tab for actuation is particularly easy to grasp or under attack, since between the pull tab and the opening area in the can wall always a defined, in particular by the collar part height given distance exists. This distance makes it possible to easily grasp the pull tab with a finger, slightly lift the pull tab and then apply the required for the purpose of full can opening traction. Any risk of injury or damage to a fingernail during the opening process is thus eliminated, and a one-hand or blind operation is possible without any problem.
- the invention further relates to a method for producing a can lid with an outer bead and inwardly recessed lid surface in which a resealable opening is provided.
- the inventive method which is characterized by particular simplicity and the achievable quality of resealable opening unit, is in particular that the lid punched and introduced into the cover surface a circumferential tear notch and the tear notch at least on the outside adjacent an annular groove is formed in the lid surface, that Subsequently, while anchoring in the annular groove, a lid receiving part is injected with a first coupling element of a predetermined elasticity possessing plastic material, that then used the can lid with the lid receiving part as a counter-mold and an annular collar part injected from a not with the material of the lid receiving part plastic material and the tear notch is frictionally connected inwardly adjacent the lid surface, said annular cantilever being configured to receive the lid rushes over and a complementary to the first coupling element second coupling element and both coupling elements form a snap-locking connection, and that in particular simultaneously with the collar part a pull tab made of elastic material is injected, which is anchored at one end in a radially outer portion of the collar part and extend
- the individual injection molding operations required for the production of the can lid can be realized problem-free in conventional technology, wherein it is clearly advantageous that in the course of production the lid surface with the already molded lid receiving part can be used as a negative mold for the next injection molding process to form the collar part and anchoring part, so that the optimal interaction and the required form-fit can be perfectly achieved in connection with the reclosability.
- Fig. 1 shows a conventionally designed in its basic form can lid 1 made of metal, which carries a paint layer on both sides in a conventional manner and is connected via a flange 2, preferably with the interposition of a sealing material, liquid-tight and gas-tight with the respective associated can.
- a buckling spring element 22 ensures that the lid is held in the open position, especially when more than an angle of 90 ° is pivoted.
- FIG. 2 again shows those related to Fig. 1 already mentioned components, wherein in Fig. 2 additionally an anchoring element 14 is indicated.
- the Fig. 2 illustrates that the reclosable opening with all its associated components is arranged off-center, in such a way that despite the presence of the resealable opening, the stackability is unchanged as in conventional doses.
- Fig. 3 shows the basic structure of the integrated in the can lid resealable opening according to the invention in a sectional view along the line CC in Fig. 2 ,
- a resealable can lid must be liquid-tight and gastight, especially in the area of the resealable opening. It is to take into account that in the can production, the filled cans are heated to about 80 ° C for about 20 minutes, creating an internal pressure in the range of about 6 bar and this internal pressure must not cause it immediately or when the cans are delivered , comes to a gas leak.
- Fig. 3 shows that the resealable closure according to the invention is not a prefabricated unit which is inserted into a corresponding opening of the can lid, but a structure in which closure components are integrated in the metallic can lid and the tear-open area by a conventional tear notch in the metallic can lid is defined.
- the essential components of the closure according to the invention are formed by a circumferential cover receiving part 10 and a cooperating with this snap-lock type collar part 5, which forms the hinged lid part together with the opening portion located within a tear notch, which via a pivot plate connection 16 with an anchoring element 14th connected is. On the collar part engages on the outside and the anchoring part 14 opposite the pull tab 15.
- Fig. 4 shows the specific structure of a preferred embodiment of a can lid according to the invention with a reclosable opening.
- an opening portion 11 is defined by a circumferential tear-4 of known type. Adjacent to the tear notch 4 and outside the opening portion 11 a circumferential annular groove 17 is introduced into the lid surface 3.
- This annular groove 17 desirably increases the rigidity, but it also has an advantageous effect if an increased pressure, in particular the pressure of about 6 bar arising in the pasteurization step, occurs in the can, since this annular groove provides a certain length or area compensation, when the can inflates a bit. This length or area compensation also protects the adjacent tear score.
- a perforation is provided, which may consist of mutually spaced round, oval or elongated holes. Instead of such perforations or mixed with such perforations, so-called passages may also be provided, i. Openings with downwardly extending, short wall approaches.
- the perforations or passages make it possible for the area of the annular groove 17 to be enclosed on all sides by the plastic material used for the lid receiving part 10 when the lid receiving part 10 is sprayed. Since, due to the coating of the lid material with a lacquer can not be readily ensured that a perfect gas-tight connection between the can lid material and the plastic material is achieved, there is a special feature of the invention in that before spraying the lid receiving part, the free end faces and the surrounding areas of the openings 7 or passages are encapsulated with an elastic sealing material.
- annular recess 12 When spraying the lid receiving part 10, an annular recess 12 is provided, which has approximately the shape of a downwardly widening U in cross section and is suitable to form a snap-locking receptacle with a corresponding counter-element.
- the circumferentially provided adjacent to the tear notch 4 cover receiving part 10 is associated with a collar part 5, which consists of a different from the lid receiving part 10 plastic material and is chosen so that it does not connect with the injection molding process with the material of the lid receiving part 10.
- the collar part 5 is fixedly and gastightly connected to the opening part 11 of the can lid, to which adjacent to the tear notch 4 in the region of the outer periphery of the opening portion 11 openings or passages approximately analogous to the openings or passages at the bottom of the annular groove 17 are provided.
- These breakthroughs 7 or passages - the can not be seen in the right part of the representation of the collar part 5 due to the cutting process - are in turn encapsulated in the region of their faces and the adjacent areas with an elastic sealing material 8, so that in the formation of the collar part the corresponding plastic material pass through the openings 7 or passages and below the opening portion 11 may form a fastening lug.
- the plastic material of the collar part 5 and the elastic sealing material 8 also act together again in the same way, as has already been described in connection with the lid receiving part 10, that is, there is a mechanically strong, gas-tight connection between the material of the opening portion 11 and Collar part 5 created.
- a rib 9 which is shaped complementarily to the recess 12 in the lid receiving part 10 is formed, so that the snap snap connection already mentioned can be created.
- a swivel-plate connection 16 with a likewise simultaneously formed anchoring element 14 in the lid surface 3 is created.
- the anchoring element 14 is formed in the same way and is constructed in the same way as the connection between the collar part 5 and the opening portion 11, ie it is also ensured due to the provided between can lid opening 7 and the plastic material of the anchoring element elastic sealing gas tightness.
- Between film hinges 21, which are provided adjacent to the anchoring element 14, in the pivot plate connection 16 is an existing of the same material Buckling spring element 22 integrated by conventional design. This buckling spring element 22 holds the cover in the open position when it is swung open by more than 90 °. When closing the lid, the buckling spring element 22 snaps over and obstructs the closing process in any way.
- the collar part 5 is connected to the fixing strap 13 with the flexibly formed pull tab 15, wherein the connection preferably takes place in the context of an injection process.
- the pull tab 15 extends to the opposite inner region of the collar member 5, is applied to this and parallel to the plane of the opening portion 11, i. it is in the closed state of the resealable opening before a very space-saving, compact arrangement, the height is significantly less than the distance between the top surface 3 and the bead 2.
- a plastic material is used for the lid receiving part, which is a slightly widening of the recess 12 when pressing the dome rib 9 and then holding this dome rib 9 via a rounded undercut and on the other hand the exercise of a necessary bias on the plastic material used for the elastic sealing material 8 after the Spraying guaranteed.
- the plastic material for the elastic sealing material 8 is much more elastic than the plastic material of the lid receiving part.
- a plastic material is used, on the one hand with the material of the lid receiving part 10 no connection and on the other hand is also much less elastic than This is also important because the collar part 5 must have a basic rigidity, which is required for the can opening operation.
- the plastic material used for the pull tab preferably again differs from the three already mentioned plastic materials and is so elastic that the pull tab can be easily raised by grasping and then operated in the manner required to open.
- an opening force ratio is provided in the subject of the application, which is realized in that the pull tab 15 is articulated to the radially outer fixing portion 13 of the collar member and by pulling the radially outer end of the collar member 5 by means of the pull tab Supporting the collar part on the radially inner leg of the recess 12 of the lid receiving part 10 takes place and thus the relatively long lever between this leg and the fixing portion 13 cooperates with the much shorter lever which acts between this acting as a support leg radially inner leg of the lid receiving part and the attachment point of the Collar portion 5 is formed on the opening portion 11 and is effective.
- the shorter lever is thereby moved inwards, ie toward the interior of the can and the resulting deformation causes - supported by the provision for increasing the rigidity local projection 25 - a local breaking of the tear-4, the is then separated on further pulling up the pull tab 15 with little force over the entire circumference.
- the dome rib 9 leaves the corresponding recess 12 in the lid receiving part.
- the lid can then be removed after complete separation of the snap-locking connection on the pivot plate connection 16 and the film hinges 21 of the formed free opening and swung up.
- the existing buckling spring element 22 of the open lid is held in the open position.
- the initial opening of a can differs from subsequent opening and closing operations as a rule by the fact that the force required for the first opening is several times as large as the force required for reopening after reclosure and, above all, the noise perceptible in each case is significantly different is.
- the lid receiving part 10 and the collar part 5 at least one by the initial opening operation of the collar member 5 inevitably in its structure and / or its appearance and / or its position changed visual element can be provided.
- Fig. 5 shows the already explained variant, in which between the metallic, provided with a top coat sheet 17 and the plastic material of the lid receiving part 10 or collar part 5, a sealing material in the region of the opening 7 is provided.
- Fig. 6 shows a variant in which breakthroughs or passages in the can lid material can be avoided.
- recesses 18 are formed in the material of the can lid, which are provided with at least one undercut 19. If the plastic material for the lid receiving part or the collar part is injected into such a recess, then there are force and form-fitting connections that ensure the required secure hold of the plastic material.
- Fig. 7 shows a further embodiment, in which instead of in Fig. 6 provided undercut in the annular groove 17 specially shaped retaining elements 20 attached, z. B. are welded, which allow the same effect avoiding undercuts.
- Fig. 8 shows a variant in which between the metallic sheet of the annular groove 17 and the plastic material used for the lid receiving part 10 or the collar part 5, a bonding agent 24 is provided which, even if the metal sheet is provided with a paint layer, a mechanically stable and especially ensures a gas-tight connection between plastic and metal.
- the layer of bonding agent 24 is provided inside the can on the metal sheet.
- Fig. 9 shows an embodiment in which in turn in the lid surface of the can lid no perforations are required, but the gas-tight fixing of collar part 5 and / or lid receiving part 10 takes place in a recess which is provided with a primer layer 24 having a gas-tight connection between plastic and metal ensures.
- the inventive method for producing a can lid with a resealable opening comprises in particular the following method steps:
- annular groove is formed in the lid surface on the outside adjacent to the intended circumferential tear-open notch.
- annular groove can also be provided on the inside of the tear-open groove.
- the opening region delimiting, circumferential tear-open notch is introduced into the lid surface.
- annular grooves located on both sides of the tear notch these serve later for fixing the collar and lid holding parts to be formed.
- an annular groove is provided only outside the tearing notch, in which a lid receiving part is fixed in a manner to be described.
- Fig. 4 in particular in Fig. 4 is shown and provided in the outside of the tear notches perforations without annular groove and within the tear notch perforations in an annular groove are introduced simultaneously or offset in time to form the outer annular groove in the bottom of the annular groove and in the tear-open inside adjacent area perforations.
- the perforations are encapsulated on the face side and in the vicinity of their end faces with an elastic sealing material.
- the lid receiving part is injection-molded with the use of the corresponding mold parts while enclosing the elastic sealing material already present on all sides, preferably simultaneously with a support area for a pivoting lug located on the side of the anchoring element.
- the resulting structure of metallic lid surface with integrated lid receiving part is used for the next injection molding process as a counter-mold, so that the annular recess in the lid receiving part forms the counter-form region for the positively engaging dome rib, which is an integral part of the annular collar part.
- This annular collar part penetrates the plastic material through the already provided with an elastic sealing material breakthroughs, wherein on the elastic sealing material by the injection pressure and the resulting during spraying forcing a permanent bias is applied.
- the plastic materials used for the collar part and the lid receiving part enter into a connection with the elastic sealing material. Simultaneously with the spraying of the collar part, the anchoring part and the pivot plate connection, in particular with buckling spring element, are preferably sprayed.
- the pull tab is injected using an inclined shape, wherein in the fixing between the pull tab and anchoring the pull tab material in correspondingly provided recesses of the Collar material can penetrate and in this way the pull tab is fixed.
- connection possibilities between the lid material and collar part or lid receiving part can be modified.
- the formation of perforations in the lid material omitted, as well as the application of these perforations associated sealing material.
- process steps for applying a bonding agent or for attaching retaining elements are required.
- all embodiments of the invention have in common that the resealable can lid in the conventional production process, i. the process of processing can lids without resealable opening, processable and thus applied with the available facilities a can filling line on the respective can and the can can be closed.
- the gas-tightness achieved according to the invention also ensures that the durability of the particular contents of the can is in no way adversely affected in comparison with non-re-closable cans.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
- Containers Opened By Tearing Frangible Portions (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10001041A EP2354022B1 (fr) | 2010-02-02 | 2010-02-02 | Couvercle de boîte et procédé de fabrication d'un couvercle de boîte |
PCT/EP2011/000446 WO2011095319A1 (fr) | 2010-02-02 | 2011-02-01 | Couvercle de canette et procédé de fabrication d'un couvercle de canette |
US13/576,569 US8695832B2 (en) | 2010-02-02 | 2011-02-01 | Can lid and method for producing a can lid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10001041A EP2354022B1 (fr) | 2010-02-02 | 2010-02-02 | Couvercle de boîte et procédé de fabrication d'un couvercle de boîte |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2354022A1 true EP2354022A1 (fr) | 2011-08-10 |
EP2354022B1 EP2354022B1 (fr) | 2012-12-26 |
Family
ID=42104375
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10001041A Active EP2354022B1 (fr) | 2010-02-02 | 2010-02-02 | Couvercle de boîte et procédé de fabrication d'un couvercle de boîte |
Country Status (1)
Country | Link |
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EP (1) | EP2354022B1 (fr) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2711307A1 (fr) * | 2012-09-20 | 2014-03-26 | Xolution GmbH | Couvercle d'un récipient |
WO2014127887A1 (fr) * | 2013-02-25 | 2014-08-28 | Euro-Cap Gmbh | Système de fermeture de boîte présentant un élément de fermeture disposé intérieurement |
WO2015188974A1 (fr) * | 2014-06-12 | 2015-12-17 | Ball Europe Gmbh | Couvercle déchirable refermable |
WO2017016686A1 (fr) * | 2015-07-29 | 2017-02-02 | Piech, Gregor Anton | Couvercle de boîte |
KR20190124275A (ko) * | 2017-04-05 | 2019-11-04 | 그레고르 안톤 피흐 | 금속 캔 뚜껑 |
WO2019243260A1 (fr) | 2018-06-19 | 2019-12-26 | Top Cap Holding Gmbh | Couvercle de boîte métallique |
WO2019243254A1 (fr) | 2018-06-19 | 2019-12-26 | Top Cap Holding Gmbh | Couvercle de boîte métallique |
US11718446B2 (en) * | 2017-04-05 | 2023-08-08 | Gregor Anton Piech | Container for hermetically sealed storage of products, in particular foodstuffs |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016103801A1 (de) * | 2016-03-03 | 2017-09-07 | Gregor Anton Piech | Dosendeckel wiederverschliessbar |
DE102016112953A1 (de) | 2016-07-14 | 2018-01-18 | Gregor Anton Piech | Metallische Dose und zugehöriger Dosendeckel |
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EP1607341A1 (fr) | 2003-01-24 | 2005-12-21 | Toyo Seikan Kaisya, Ltd. | Couvercle de recipient facile a ouvrir refermable et son procede de production |
NL2000219C2 (nl) * | 2006-09-07 | 2008-03-10 | 4Sight Innovation Bv | Topelement voor een drankblikje, en drankblikje voorzien van een dergelijk topelement. |
WO2008098558A1 (fr) | 2007-02-12 | 2008-08-21 | Xolution Gmbh | Emballage pour des produits aptes à couler par ruissellement ou par écoulement |
US20090001081A1 (en) * | 2002-05-02 | 2009-01-01 | Oliver Schlattl | Container lid and container |
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GB1389351A (en) | 1971-11-23 | 1975-04-03 | Nat Can Corp | Easy opening containers |
DE8911286U1 (de) | 1989-09-22 | 1989-11-02 | Grau, Rainer, 8640 Kronach | Behälter mit einem Eindrückdeckelverschluß |
DE9005150U1 (de) | 1990-05-07 | 1990-07-19 | Wildhirt, Lothar, 6054 Rodgau | Getränkedose |
DE19613246A1 (de) | 1996-04-02 | 1997-10-09 | Schmalbach Lubeca | Wiederverschließbarer Deckel für Getränkedosen |
US6286703B1 (en) * | 1998-07-02 | 2001-09-11 | Laurie Munro | Resealable drink can |
US20090001081A1 (en) * | 2002-05-02 | 2009-01-01 | Oliver Schlattl | Container lid and container |
EP1607341A1 (fr) | 2003-01-24 | 2005-12-21 | Toyo Seikan Kaisya, Ltd. | Couvercle de recipient facile a ouvrir refermable et son procede de production |
NL2000219C2 (nl) * | 2006-09-07 | 2008-03-10 | 4Sight Innovation Bv | Topelement voor een drankblikje, en drankblikje voorzien van een dergelijk topelement. |
WO2008098558A1 (fr) | 2007-02-12 | 2008-08-21 | Xolution Gmbh | Emballage pour des produits aptes à couler par ruissellement ou par écoulement |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10213033B2 (en) | 2012-09-20 | 2019-02-26 | Xolution Gmbh | Lid of a container |
WO2014044606A1 (fr) * | 2012-09-20 | 2014-03-27 | Xolution Gmbh | Couvercle de récipient |
CN103946122A (zh) * | 2012-09-20 | 2014-07-23 | 埃克索鲁逊有限公司 | 容器盖 |
CN103946122B (zh) * | 2012-09-20 | 2016-04-20 | 埃克索鲁逊有限公司 | 容器盖 |
EP2711307A1 (fr) * | 2012-09-20 | 2014-03-26 | Xolution GmbH | Couvercle d'un récipient |
WO2014127887A1 (fr) * | 2013-02-25 | 2014-08-28 | Euro-Cap Gmbh | Système de fermeture de boîte présentant un élément de fermeture disposé intérieurement |
WO2015188974A1 (fr) * | 2014-06-12 | 2015-12-17 | Ball Europe Gmbh | Couvercle déchirable refermable |
US10273044B2 (en) | 2015-07-29 | 2019-04-30 | Gregor Anton Piech | Can lid |
WO2017016686A1 (fr) * | 2015-07-29 | 2017-02-02 | Piech, Gregor Anton | Couvercle de boîte |
EP3569516A1 (fr) | 2015-07-29 | 2019-11-20 | Piech, Gregor Anton | Couvercle de boîte |
AU2016299451B2 (en) * | 2015-07-29 | 2019-12-12 | Piech, Gregor Anton | Can lid |
EA034671B1 (ru) * | 2015-07-29 | 2020-03-04 | Пиех, Грегор Антон | Баночная крышка |
AU2019272001B2 (en) * | 2015-07-29 | 2021-01-07 | Piech, Gregor Anton | Can Lid |
KR20190124275A (ko) * | 2017-04-05 | 2019-11-04 | 그레고르 안톤 피흐 | 금속 캔 뚜껑 |
US11365024B2 (en) | 2017-04-05 | 2022-06-21 | Gregor Anton Piech | Metallic can lid |
US11718446B2 (en) * | 2017-04-05 | 2023-08-08 | Gregor Anton Piech | Container for hermetically sealed storage of products, in particular foodstuffs |
WO2019243260A1 (fr) | 2018-06-19 | 2019-12-26 | Top Cap Holding Gmbh | Couvercle de boîte métallique |
WO2019243254A1 (fr) | 2018-06-19 | 2019-12-26 | Top Cap Holding Gmbh | Couvercle de boîte métallique |
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