DK149150B

DK149150B - PROCEDURE FOR CREATING A FOLDING PACKAGING AND APPARATUS FOR EXERCISING THE PROCEDURE

Info

Publication number: DK149150B
Application number: DK198884A
Authority: DK
Inventors: Niels Astrup
Original assignee: Colon Emballage As
Priority date: 1983-05-24
Filing date: 1984-04-17
Publication date: 1986-02-17
Also published as: FI76734B; FI842069A; DK198884A; NO842050L; FI76734C; DE3465954D1; EP0129094B1; EP0129094A1; DK149150C; FI842069A0; DK198884D0

Description

149150149150

Opfindelsen angår en fremgangsmåde til dannelse af en foldeemballage af den type, der fx kendes fra USA patentskrift nr. 3.001.686 og i øvrigt som angivet i krav 1's indledning.The invention relates to a method for forming a folding package of the type known, for example, from US Patent No. 3,001,686 and further as set forth in the preamble of claim 1.

Ligesom denne kendte foldeemballage dannes foldeemballagen ved 5 fremgangsmåden ifølge opfindelsen ud fra et i hovedsagen rektangulært og plant emne med et par smalle sidevægsfelter, der hver især afgrænses mellem et par i det væsentlige parallelle foldelinjer, hvis endedele er rettet mod hinanden, og mellem hvilke smalle sidevægsfelter der afgrænses et bredt sidevægsfelt, og med en part til hvert 10 sit af de smalle sidevægsfelter grænsende og uden for disse beliggende delfelter, hvis samlede bredde vinkelret på foldelinjerne i hovedsagen svarer til det brede sidevægsfelts bredde.Like this known folding package, the folding package is formed by the method according to the invention from a generally rectangular and flat blank having a pair of narrow sidewall panels, each bounded between a pair of substantially parallel fold lines, the end portions of which are directed towards each other and between which narrow sidewall fields defining a wide sidewall field, and having one party for each 10 of the narrow sidewall fields adjoining and outside these subfields, whose total width perpendicular to the fold lines substantially corresponds to the width of the wide sidewall field.

Ifølge det ovennævnte patentskrift dannes foldeemballagen ved, at en bog eller en anden genstand, der skal emballeres, anbringes på det 15 plane emnes brede sidevægsfelt, hvorefter emnet bukkes langs foldelinjerne således, at de to delfelter kommer til at ligge an mod og i hovedsagen dække den emballerede genstands overside. Emballagen lukkes ved, at et ved hver ende af det brede .sidevægsfelt anbragt endefelt bukkes ind over og fastgøres til de skrå endedele af de ved 20 siden af hinanden beliggende delfelter ved hjælp af klæbemiddel, klæbebånd eller hæfteklammer. Fra det nævnte patentskrift er det også kendt at bukke emballageemnet til rørform i tom tilstand og at fastgøre de to delfelter til hinanden ved hjælp af et klæbebånd, som bringes til at overlappe disse delfelters til hinanden grænsende side-25 kanter. En bog eller en anden genstand, der skal emballeres, indføres derefter i den rørformede emballage gennem den ene endeåbning, hvorefter emballageenderne som tidligere beskrevet lukkes ved hjælp af endefelter.According to the aforementioned patent specification, the folding packaging is formed by placing a book or other article to be packaged on the wide sidewall field of the planar workpiece, after which the workpiece is bent along the fold lines so that the two subfields abut and substantially cover the top of the packaged item. The packaging is sealed by an end panel located at each end of the wide sidewall panel being bent over and secured to the inclined end portions of the adjacent subfields by adhesive, adhesive tape or staples. It is also known from the aforementioned patent to bend the blank in tubular form and to attach the two subfields to each other by means of an adhesive tape which is made to overlap the adjacent edges of each of the subfields. A book or other item to be packaged is then inserted into the tubular package through one end opening, after which the packaging ends, as previously described, are closed by end panels.

Den fra det nævnte USA patentskrift kendte fremgangsmåde forud-30 sætter således anvendelse af emballageemner med endefelter, og en fuldstændig lukning af den kendte emballage kræver to forskelligartede, separate fastgørelsesoperationer, nemlig dels en sammenføjning af de to delfelters til hinanden grænsende sidekanter ved hjælp af et klæbebånd, dels ombukning og fastlimning eller fasthæftning af hvert 35 af endefelterne.Thus, the method known from the aforementioned United States patent presupposes the use of end blanks packaging blanks and a complete closure of the prior art packaging requires two different, separate fastening operations, namely, a joining of the two subfields adjacent side edges by a adhesive tape, partly bending and bonding or fastening each of the 35 end panels.

149150 2149150 2

Ved den foreliggende opfindelse er der blevet tilvejebragt en fremgangsmåde, der muliggør dannelse af foldeemballager af den omhandlede art under anvendelse af emballageemner uden de nævnte endefelter, hvorved der kan opnås en væsentlig materialebesparelse, og 5 som muliggør en fuldstændig og pålidelig lukning ved en enkelt sammenføjningsoperation eller lukkeoperation.In the present invention, there has been provided a method which enables the formation of folding packages of the kind in question using packaging blanks without the aforementioned endfields, thereby obtaining substantial material savings and 5 enabling complete and reliable closure in a single joining operation. or closing operation.

Fremgangsmåden ifølge opfindelsen er som nævnt af den art, ved hvilken emballageemnet bukkes langs foldelinjerne til rørform således, at de to delfelter med deres sidekanter grænsende op til hinanden 10 kommer til at danne en bred sidevæg, der ligger over for en af det brede sidevægsfelt dannet bred sidevæg, hvilke brede sidevægge er i hovedsagen parallelle, men har endedele, der er rettet mod hinanden svarende til de mod hinanden rettede ender af foldelinjerne, hvorefter de til hinanden grænsende sidekanter af delfelterne forbindes med 15 hinanden ved hjælp af et klæbebånd, og fremgangsmåden ifølge opfindelsen er ejendommelig ved, at ét eller flere klæbebånd også føres omkring i det mindste den ene af emballagens endedele og fastklæbes til de modstående brede sidevægge, medens disse sidevægges endedele holdes trykket mod hinanden.The method according to the invention is, as mentioned, of the kind in which the packaging blank is bent along the fold lines into tubular form so that the two subfields with their side edges adjacent to each other 10 form a wide sidewall opposite one of the wide sidewall field formed wide sidewalls, which broad sidewalls are generally parallel, but have end portions directed to one another corresponding to the opposite ends of the fold lines, after which the adjacent side edges of the subfields are joined to each other by an adhesive tape, and the method The invention is characterized in that one or more adhesive tapes are also passed around at least one of the end portions of the packaging and adhered to the opposing wide sidewalls while the end portions of these sidewalls are kept pressed against each other.

20 Et sådant klæbebånd, der strækker sig omkring en emballageendedel, der i emballagens længderetning har et i hovedsagen trekantformet tværsnit, vil, når det er i stram tilstand, virke i retning af at formindske trekantformens højde og dermed fortsat holde de brede sidevægges endedele trykket mod hinanden. Fremgangsmåden ifølge opfin-25 delsen er velegnet til automatisk lukning af emballagen.Such an adhesive tape extending around a package end having a substantially triangular cross-sectional length of the package will, when in tight condition, act to decrease the height of the triangle shape and thus continue to keep the end portions of the wide sidewalls pressed against each other. The method according to the invention is suitable for automatic closure of the packaging.

Delfelternes til hinanden grænsende sidekanter kan fastgøres til hinanden ved hjælp af et særskilt påsat klæbebånd. Ved en foretrukket udførelsesform for fremgangsmåden ifølge opfindelsen føres det klæbebånd, hvormed delfelternes til hinanden grænsende sidedele 30 forbindes med hinanden, imidlertid også omkring i det mindste den ene af og fortrinsvis begge emballagens endedele. Dette betyder, at der ved hjælp af ét og samme klæbebånd kan opnås en effektiv lukning af begge emballagens ender og fastgørelse af delfelternes til . hinanden grænsende sidedele til hinanden.The adjacent edges of the subfields can be attached to each other by means of a separate adhesive tape. In a preferred embodiment of the method according to the invention, the adhesive tape with which the adjacent side portions 30 of the subfields are interconnected, however, also includes at least one of and preferably both end portions of the packaging. This means that with one and the same adhesive tape, an effective closure of both the ends of the packaging and the attachment of the sub-panels to it can be achieved. adjacent side parts to each other.

149150 3149150 3

Der kan ved fremgangsmåden ifølge opfindelsen anvendes emballageemner, hvor foldelinjernes mod hinanden rettede endedele skærer hinanden ved de yderste dele af de tilgrænsende endekanter af det brede sidevægsfelt og af delfelterne, eller foldelinjernes endedele kan 5 danne en mindre vinkel med hinanden således, at deres forlængelser skærer hinanden uden for disse yderste dele af endekanterne. Ved fremgangsmåden ifølge opfindelsen anvendes imidlertid fortrinsvis et emballageemne, hvor foldelinjernes mod hinanden rettede endedele skærer hinanden inden for de yderste dele af de tilgrænsende ende-10 kanter af det brede sidevægsfelt og af delfelterne. De nævnte endekanter er ikke nødvendigvis rette, men kan have en hvilken som helst passende form, fx konvekst buede. Ved at foldelinjernes endedele skærer hinanden inden for de yderste dele af endekanterne, opnår man en særlig god lukning af emballagens ender, og under påføringen 15 af klæbebåndet eller klæbebåndene holdes endedelene af emballagens brede sidevægge fortrinsvis trykket mod hinanden i nærheden af og fortrinsvis på eller inden for forbindelseslinjen mellem skæringspunkterne for de mod hinanden rettede ender af foldelinjerne ved den pågældende endedel af emballagen.Packaging blanks may be used in the method according to the invention, where the end portions of the fold lines intersect at the outermost portions of the adjacent end edges of the wide sidewall field and of the subfields, or the end portions of the fold lines may form a smaller angle with each other such that their extensions intersect. each other outside these outer parts of the end edges. In the method of the invention, however, a packaging blank is preferably used where the end portions of the fold lines intersect within the outermost portions of the adjacent end edges of the wide sidewall field and of the subfields. Said end edges are not necessarily straight, but may have any suitable shape, e.g., convex curved. By intersecting the end portions of the fold lines within the outermost portions of the end edges, a particularly good closure of the ends of the packaging is obtained, and during the application of the adhesive tape or adhesive tapes, the end portions of the wide sidewalls of the packaging are preferably pressed against each other near and preferably on or before for the connecting line between the intersections of the opposite ends of the fold lines at the respective end portion of the package.

20 Emballagen kan som nævnt ovenfor lukkes ved hjælp af et enkelt klæbebånd. Der kan imidlertid i stedet anvendes to eller flere klæbebånd, og disse føres da hver især omkring begge emballagens modstående ender, og bringes til at forløbe i hovedsagen parallelt med indbyrdes afstande langs i det mindste den ene af emballagens brede 25 sidevægge.20 As mentioned above, the packaging can be closed by a single adhesive tape. However, instead, two or more adhesive tapes can be used, and these are each passed around the opposite ends of both packages and caused to extend substantially parallel to each other along at least one of the wide sidewalls of the packaging.

Ved en emballage af den omhandlede art tjener de brede sidevægges mod hinanden rettede endedele som stødgavle, og det eller de klæbebånd, der strækker sig omking disse endedele, er derfor ret udsat for beskadigelse. Når der i de brede sidevægges endedele findes over 30 for hinanden beliggende udskæringer, kan klæbebåndet eller -båndene imidlertid fordelagtigt føres således omkring emballagens endedele, at klæbebåndet eller -båndene optages i disse udskæringer. Klæbebåndet eller klæbebåndene vil således ved emballagens ender ligge godt beskyttet således,, at risikoen for beskadigelse er væsentligt reduce-35 ret.In a package of the kind in question, the wide side walls facing each other serve as bumps, and the adhesive band (s) extending around these end portions are therefore quite prone to damage. However, when the end portions of the wide sidewalls are located over 30 intersecting cuts, the adhesive tape (s) may advantageously be passed around the end portions of the packaging that the adhesive tape (s) are accommodated in these cuts. Thus, the adhesive tape or adhesive tapes will be well protected at the ends of the packaging so that the risk of damage is substantially reduced.

4 U9150 Når foldelinjernes mod hinanden rettede endedele skærer hinanden inden for de yderste dele af de til hinanden grænsende endekanter af de brede sidevægge, er udskæringerne fortrinsvis udformet således, at deres inderste begrænsning ligger i hovedsagen ud for eller aksialt 5 inden for de tilgrænsende skæringspunkter for foldelinjen. Hvis de brede sidevægges endedele under lukningen holdes trykket mod hinanden langs udskæringernes inderste begrænsning og af det eller de påsatte klæbebånd fastholdes i denne stilling, vil de brede sidevægges endedele også ved siden af eller mellem udskæringerne blive 10 presset så kraftigt mod hinanden, at der opnås en meget effektiv lukning.When the folded end portions of the fold lines intersect within the outermost portions of the adjacent end edges of the wide sidewalls, the cutouts are preferably formed such that their innermost restriction is substantially adjacent to or axially within the intersecting points of the fold line. If during the closure, the wide side wall end portions are held pressed against each other along the innermost limitation of the cutouts and the adhesive tape (s) is held in this position, the wide sidewall end portions also adjacent to or between the cuts will be pressed so strongly against each other that a very effective closure.

Opfindelsen angår også et apparat til brug ved udøvelse af den ovenfor beskrevne fremgangsmåde, og med organer indrettet til at bukke emballageemnet langs deres parallelle foldelinjer til rørform, 15 samt med mindst ét klæbebåndsreservoir, organer indrettet til at føre klæbebånd fra reservoiret mod det bukkede emballageemne langs delfelternes til hinanden grænsende sidekanter, og med skæreorganer tri afskæring af klæbebåndet, og apparatet ifølge opfindelsen er ejendommeligt ved, at klæbebåndspåføringsorganerne omfatter bevæ-20 georganer indrettet til successivt at bevæge de bukkede emballageemner forbi klæbebånds reservoiret med delfelternes til hinanden grænsende sidekanter vendende mod dette og organer indrettet til at føre den frie ende af det i reservoiret værende klæbebånd i berøring med den modsat reservoiret beliggende brede sidevæg af en emballage, der 25 passerer reservoiret, ved emballagens forreste ende, at der findes organer til at sammentrykke de brede sidevægges forreste endedele, medens klæbebåndet bringes i berøring med disse endedele, at skæreorganerne er indrettet til at afskære et stykke klæbebånd med en længde, der overstiger emballagens længde, og ved organer til at føre 30 den frie ende af det afskårne klæbebåndsstykke omkring emballagens bageste ende og i berøring med emballagens modsat reservoiret beliggende brede sidevæg og organer til at sammentrykke de brede sidevægges bageste endedele, medens klæbebåndet bringes i berøring med disse endedele.The invention also relates to an apparatus for use in the above-described method, and with means adapted to bend the package blank along their parallel tubular fold lines, and with at least one adhesive tape reservoir, means adapted to guide adhesive tape from the reservoir towards the bent package blank. the adjacent side edges of the subfields, and with cutting means for cutting off the adhesive tape, and the apparatus according to the invention is characterized in that the adhesive tape means comprise moving means adapted to move the bent packaging members successively past the side edges of the adhesive tape side compartment with the side edges of the adhesive strip. means arranged to bring the free end of the adhesive tape in the reservoir into contact with the wide lateral wall of a package passing through the reservoir, at the front end of the container, means are provided to compress the front side of the wide sidewalls end portions, while the adhesive tape is brought into contact with these end portions, the cutting means are arranged to cut a piece of adhesive tape of a length exceeding the length of the package, and by means of passing the free end of the cut adhesive tape around the rear end of the package and contacting the wide side wall of the packaging opposite the reservoir and means for compressing the rear end portions of the wide side walls while contacting the adhesive tape with these end portions.

149150 5 I princippet kan emballagerne være stationære, idet klæbebåndsreservoiret eller reservoirerne bevæges i forhold til emballagerne. Ved den foretrukne udførelsesform har bevægeorganerne imidlertid form af et transportbånd eller en anden transportør, der er indrettet til at 5' bevæge de bukkede emballageemner i forhold til reservoiret eller reservoirerne, der er bevægelige i begrænset udstrækning eller stationære. De organer, der tjener til at føre klæbebåndet i berøring med de bukkede emballageemner, kan eksempelvis have form af tryk-mediumaktiverede lederuller eller andre ledeorganer, der kan være 10 styret af ledekurver eller på anden passende måde. Endelig kan de organer, der tjener til sammentrykning af de brede sidevægges endedele under påsætningen af klæbebåndet, eksempelvis omfatte trykme-diumaktiverede presseorganer, fx i form af hydrauliske eller pneumatiske cylindre, der eksempelvis kan styres af fotoelektriske celler 15 eller andre typer af detektorer, der detekterer emballageemnets position i forhold til klæbebåndsreservoiret. Sammentrykningsorganerne kan alternativt have form af på transportøren anbragte fjederpåvirkede klemmer, ved hjælp af hvilke de brede sidevægges endedele kan holdes trykket mod hinanden, og som eventuelt kan åbnes og 20 lukkes automatisk ved hjælp af langs transportøren anbragte styrekurver eller andre styreorganer.In principle, the packages may be stationary as the adhesive tape reservoir or reservoirs are moved relative to the packages. However, in the preferred embodiment, the moving means is in the form of a conveyor belt or other conveyor arranged to move the 5 'bent package blanks relative to the reservoir or reservoirs which are movable to a limited extent or stationary. The means which serve to guide the adhesive tape with the bent packaging blanks may, for example, be in the form of pressure-medium-activated guide rollers or other guide means which may be guided by guide curves or in any other suitable manner. Finally, the means serving to compress the end portions of the wide sidewalls during the application of the adhesive tape may comprise, for example, pressurized actuated pressing means, for example in the form of hydraulic or pneumatic cylinders which can be controlled, for example, by photoelectric cells or other types of detectors which detects the position of the packaging item relative to the adhesive tape reservoir. Alternatively, the compression means may take the form of spring-loaded clamps on which the end portions of the wide sidewalls can be held pressed against each other and which can optionally be opened and closed automatically by means of control curves or other control means arranged along the conveyor.

Opfindelsen vil i det følgende blive nærmere forklaret under henvisning til tegningen, på hvilken fig. 1 viser en udførelsesform for et emballageemne, der kan anven-25 des i forbindelse med fremgangsmåden ifølge opfindelsen, fig. 2 en udførelsesform for en foldeembatlage fremstillet ved foldning og sammen klæbning af det i fig. 1 viste emne, fig. 3a et udsnit af en anden udførelsesform for et emballageemne, der kan anvendes i forbindelse med fremgangsmåden ifølge opfindel-30 sen, fig. 3b et hjørne af en emballage dannet ved foldning af det i fig. 3a viste emne, fig. 4a et udsnit af en tredje udførelsesform for et emne, der kan anvendes i forbindelse med fremgangsmåden ifølge opfindelsen, 35 fig. 4b et hjørne af en emballage dannet ved foldning af det i fig. 4a viste emne, og 149150 6 fig. 5-8 skematisk en udførelsesform for apparatet ifølge opfindelsen i forskellige arbejdsstillinger.The invention will now be explained in more detail with reference to the drawing, in which: FIG. 1 shows an embodiment of a packaging blank which can be used in connection with the method according to the invention; FIG. 2 shows an embodiment of a folding packaging made by folding and gluing together the FIG. 1; FIG. Fig. 3a is a fragmentary view of another embodiment of a packaging blank which can be used in connection with the method according to the invention; 3b shows a corner of a package formed by folding it in FIG. 3a; FIG. Fig. 4a is a sectional view of a third embodiment of a blank which can be used in connection with the method according to the invention; 4b is a corner of a package formed by folding it in FIG. 4a and FIG. 5-8 schematically illustrate an embodiment of the apparatus according to the invention in various working positions.

Det i fig. 1 viste emballageemne kan være udstanset af pap, karton, svær plastfolie, eller et lignende pladeformet materiale. Emnet, der 5 har et i hovedsagen rektangulært omrids, har et bredt sidevægsfelt 10’, to smalle sidevægsfelter 11' og 12’, der hver især afgrænses af et par parallelt forløbende foldelinjer, henholdsvis 13' og 14'. Emnet omfatter endvidere et par ved emnets ender beliggende delfelter 15' og 16'. Hver endedel 17' af de smalle sidevægsfelter 11' og 12' har i 10 hovedsagen trekantform, idet de i øvrigt parallelle foldelinjer 13’ og 14' ved disse endedele er rettet mod hinanden således, at de netop skærer hinanden umiddelbart ved emnets kant. Disse endedele 17’ er ved hjælp af tværgående foldelinjer 18’ afgrænset fra den øvrige del af sidevægsfeltet, og disse tværgående foldelinjer 18' afgrænser også 15 endedele 19' og 20’ af henholdsvis det brede sidevægsfelt 10' og af delfelterne 15’ og 16'. Det brede sidevægsfelt 10' kan som vist være forsynet med en udskæring 21', der tjener til optagelse af et adressekort eller lignende, og der kan i endedelene 19' og 20' være udformet udskæringer 22', der tjener til optagelse af et klæbebånd, som det 20 mere detaljeret vil blive forklaret i det følgende.The FIG. 1, the packaging blank shown may be punched out of cardboard, cardboard, heavy plastic film, or a similar plate-shaped material. The blank having a generally rectangular outline has a wide sidewall field 10 ', two narrow sidewall panels 11' and 12 ', each bounded by a pair of parallel extending fold lines, 13' and 14 ', respectively. The blank further comprises a pair of subfields 15 'and 16' located at the ends of the blank. Each end portion 17 'of the narrow sidewall panels 11' and 12 'generally has a triangular shape, the otherwise parallel fold lines 13' and 14 'at these end portions being directed so that they intersect precisely at the edge of the blank. These end portions 17 'are delimited by the transverse fold lines 18' from the other portion of the sidewall field, and these transverse fold lines 18 'also delineate 15 end portions 19' and 20 'of the wide sidewall field 10' and of the subfields 15 'and 16', respectively. . The wide sidewall field 10 'may, as shown, be provided with a cut-out 21' which serves to receive an address card or the like, and in the end portions 19 'and 20' may be formed cut-outs 22 'which serve to receive an adhesive tape. which will be explained in more detail below.

Når det i fig. 1 viste emballageemne foldes langs de langsgående foldelinjer 13' og 14', kan der dannes en foldeemballage, som den, der er vist i fig. 2, og som kan tjene til emballering af grammofonplader, bøger eller andre flade genstande. I fig. 2 er der anvendt de samme 25 henvisningsbetegnelser som i fig. 1, men med udeladelse af ’. Det ses, at de trekantformede endedele 17 af de smalle sidevægge 11 og 12 ved foldning af det i fig. 1 viste emne vil blive bukket udefter, medens de brede sidevægges endedele 19 og 20 vil blive bukket mod hinanden og' derved lukke emballagens ender. Den endelige lukning 30 kan som vist i fig. 2 foretages ved hjælp af et klæbebånd 23, der ligger beskyttet i udskæringerne 22, og som sammenføjer de delfelter eller sidevægsfelter 15 og 16, der danner den øverste brede sidevæg.When in FIG. 1 is folded along the longitudinal fold lines 13 'and 14', a folding package such as that shown in FIG. 2, which can serve for packaging gramophone records, books or other flat items. In FIG. 2, the same reference numerals are used as in FIG. 1, but omitting '. It will be seen that the triangular end portions 17 of the narrow side walls 11 and 12, by folding the FIG. 1, the end portions 19 and 20 of the wide sidewalls will be bent towards one another, thereby closing the ends of the packaging. The final closure 30, as shown in FIG. 2 is made by means of an adhesive tape 23, which is protected in the cut-outs 22, which joins the sub-panels or sidewall panels 15 and 16 which form the upper wide sidewall.

De brede sidevægsfelters endedele 19 og 20 kan endvidere som antydet i fig. T og 2 være forsynet med huller 24, gennem hvilke der kan 35 føres en snor eller en tråd, der eventuelt yderligere kan bidrage til 149150 7 sammenholdning af de pågældende endedele. Det ses, at endedelene 17, 19 og 20 i den færdige emballage danner stødgavle, som beskytter emballagens indhold mod stød i alle retninger i tegningspapirets plan.Further, the end portions 19 and 20 of the wide sidewall panels may be as indicated in FIG. T and 2 are provided with holes 24 through which a cord or wire may be passed, which may further contribute to the bonding of the respective end portions. It will be seen that the end portions 17, 19 and 20 of the finished packaging form bumps, which protect the contents of the packaging from bumps in all directions in the plane of the drawing paper.

I fig. 3a er der vist en udførelsesform, hvor de foldelinjer, der 5 danner den trekantformede endedel 17', skærer hinanden et stykke før den frie kant af endedelene 19' og 20', så at der i denne kant dannes et trekantformet indhak 25'. Når et sådant modificeret emne foldes, fremkommer der en emballage, hvor endedelene 19 og 20 klemmes særlig kraftigt mod hinanden, hvorved der opnås en særlig 10 god endelukning. Ved denne udførelsesform kan de brede sidefladers endekanter eventuelt have en konvekst buet form.In FIG. 3a, an embodiment is shown in which the fold lines forming the triangular end portion 17 'intersect one piece before the free edge of the end portions 19' and 20 ', so that a triangular notch 25' is formed at this edge. When such a modified workpiece is folded, a packaging is obtained in which the end portions 19 and 20 are clamped particularly strongly against each other, thereby obtaining a particularly good end closure. In this embodiment, the end edges of the wide side surfaces may optionally have a convex curved shape.

Ved den i fig. 4a viste modificerede udførelsesform for emnet er den frie endedel 17' af det smalle sidevægsfelt 11’ i hovedsagen trapezfor-met, og ved foldning af et sådant emne vil endedelene 19 og 20 som 15 vist i fig. 4b umiddelbart komme til at ligge med en mindre indbyrdes afstand, så at endelukningen af emballagen bliver mindre fuldstændig.In the embodiment shown in FIG. 4a, the modified embodiment of the blank shown is the free end portion 17 'of the narrow sidewall field 11' substantially trapezoidal, and upon folding such a blank, the end portions 19 and 20 as shown in FIG. 4b will immediately be spaced apart so that the end closure of the packaging becomes less complete.

Fig. 5-8 viser skematisk en udførelsesform for et apparat til udøvelse af fremgangsmåden ifølge opfindelsen. Apparatet har et transportbånd 26 eller en anden transportør, på hvilken de plane emner manuelt 20 eller maskinelt anbringes med indbyrdes afstande og med foldelinierne 13' og 14' i transportbåndets længderetning. På det brede sidevægs felt 10' af hvert emne anbringes den eller de genstande, fx bøger, grammofonplader, fade, tallerkener eller andre flade genstande, der skal emballeres. Idet transportbåndet 26 bevæger emballageemnerne og 25 de derpå værende genstande i retning mod en i fig. 5-8 vist lukkestation, bliver emballageemnerne langs foldelinierne 13’ og 14' foldet omkring den eller de genstande, der skal emballeres, så at delfelterne 15' og 16' kommer til at ligge an mod oversiden af denne eller disse genstande. Således vil hvert af emnerne, inden de når frem til luk- 30 kestationen, have taget form af en emballage som den i fig. 2 viste, men uden klæbebåndet 23.FIG. 5-8 schematically illustrate an embodiment of an apparatus for carrying out the method according to the invention. The apparatus has a conveyor belt 26 or other conveyor on which the planar members 20 are manually or mechanically spaced apart and with the fold lines 13 'and 14' in the longitudinal direction of the conveyor belt. On the wide sidewall field 10 'of each item is placed the item (s), for example, books, gramophone records, dishes, plates, or other flat items to be packaged. As the conveyor belt 26 moves the packaging items and the articles thereon in the direction of a in FIG. 5-8, the packaging items along the fold lines 13 'and 14' are folded around the article (s) to be packaged so that the subfields 15 'and 16' abut the upper surface of this or these articles. Thus, each of the items, before reaching the closing station, will have taken the form of a package such as the one shown in FIG. 2 but without the adhesive tape 23.

Når en sådan foldet emballage 27 af transportbåndet 26 som vist i fig.When such folded packaging 27 of the conveyor belt 26 as shown in FIG.

5 er blevet ført så langt ind i apparatets lukkestation, at emballagens 149150 8 forreste kant har passeret en positionsdetektor 28, fx i form af en fotocelle, standses transportbåndet 26. En fri endedel 29 af en klæbe-båndsrulfe 30, der er drejeligt monteret på en holder 31, vil da hænge i hovedsagen lodret ned i emballagen 27's forreste udskæring 5 22 således, at klæbebåndet strækker sig et stykke ned under emballa gen 27's underside. De brede sidevægges endedele 19 og 20 ved emballagen 27s forreste ende presses nu tæt mod hinanden ved hjælp af to par af samarbejdende tryksko 32, der bevæges af hver sin pneumatiske cylinder 33. Samtidig kan et par ved hjælp af pneumati-10 ske cylindre 34 vandret bevægelige tryksko 35 sammentrykke emballagen i tværgående retning således, at de til hinanden grænsende sidekanter af delfelterne 15 og 16 holdes trykket mod hinanden.5 has been brought so far into the closure station of the apparatus that the front edge of the packaging 149150 8 has passed a position detector 28, for example in the form of a photocell, the conveyor belt 26. A free end portion 29 of an adhesive tape roller 30 pivotally mounted on a holder 31 will then hang substantially vertically down in the front cutout 5 of the packaging 27 such that the adhesive tape extends slightly below the underside of the packaging 27. The end portions 19 and 20 of the wide sidewalls at the front end of the packaging 27 are now pressed tightly against each other by two pairs of cooperating pressure shoes 32 which are moved by each of their pneumatic cylinders 33. At the same time a pair of pneumatic cylinders 34 can be horizontally movable pressure shoes 35 compress the packaging in a transverse direction so that the adjacent side edges of the sub-fields 15 and 16 are kept pressed against each other.

Medens endedelene 19 og 20 og delfelterne 15 og 16 således er presset tæt mod hinanden, føres den nederste frie ende af klæbebåndet i * 15 berøring med og fastklæbes til emballagen 27's underside ved hjælp af et påføringsorgan 36, der’ kan bevæges i skråt opadgående retning ved hjælp af en pneumatisk cylinder 37.Thus, while the end portions 19 and 20 and the subfields 15 and 16 are pressed tightly against each other, the lower free end of the adhesive tape is brought into contact with and adhered to the underside of the packaging 27 by an application means 36 which can be moved in an oblique upward direction. by means of a pneumatic cylinder 37.

Klæbebåndsrullen 30’s rotationsakse kan ved hjælp af ikke viste drivorganer forskydes langs en i holderen 31 udformet føringsrende 20 38 mellem en første og en anden endestilling, der er vist i henholds vis fig. 5 og 6. Når klæbebåndets frie ende ved hjælp af påføringsorganet 36 er blevet ført op mod og er blevet fastklæbet til emballagen 27’s underside, dvs den brede sidevæg 10, føres klæbebåndsrullen 30 til sin nævnte anden stilling, der er vist i fig. 6, og samtidig 25 bringes klæbebåndets endedel 29 til i stram tilstand at ligge an mod oversiden af emballagen 27 langs sidevægsfelterne 15's og 16's til hinanden grænsende sidekanter ved hjælp af et andet påføringsorgan 39, der fortrinsvis har form af en rulle, og som ved hjælp af en pneumatisk cylinder 40 kan bevæges skråt nedefter i retning mod og 30 bort fra emballagen 27's overside, se fig. 6.The rotary axis of the adhesive tape roller 30 can be displaced by means of drive means not shown along a guide ring 20 formed in the holder 31 between a first and a second end position shown in accordance with FIG. 5 and 6. When the free end of the adhesive tape has been pushed up and applied to the underside of the packaging 27, i.e. the wide side wall 10, by means of the application means 36, the adhesive tape roller 30 is moved to its second position shown in FIG. 6, and at the same time 25, the end portion 29 of the adhesive tape is brought to abut tightly against the upper side of the packaging 27 along the adjacent edges of the side wall panels 15 and 16 by another application means 39, preferably in the form of a roller, which of a pneumatic cylinder 40 can be moved obliquely downwards in the direction towards and 30 away from the upper side of the packaging 27, see fig. 6th

Hver af de pneumatiske cylindre 34, der hører til trykskoene 35, er anbragt på et endeløst overføringsbånd 41, der gør det muligt at overføre den delvis forseglede emballage 27 fra transportbåndet 26 til et i forlængelse af dette anbragt andet transportbånd 42. Overfø-35 ringsbåndene 41, der drives af en reverserbar motor 43, er beregnet 149150 9 til at bevæge de pneumatiske cylindre 34 og de tilhørende tryksko 35 frem og tilbage mellem en første stilling, der er vist i fig. 5 og 6, og en anden stilling, der er vist i fig. 7 og 8. Disse stillinger kan fx være fastlagt af mikroafbrydere 44 og 45, der aktiveres, når cylin-5 drene 34 når frem til deres respektive stillinger.Each of the pneumatic cylinders 34 belonging to the pressure shoes 35 is disposed on an endless transfer belt 41 which allows the partially sealed packaging 27 to be transferred from the conveyor belt 26 to a second conveyor belt 42 which is disposed thereon. 41, driven by a reversible motor 43, is intended to move the pneumatic cylinders 34 and the associated pressure shoes 35 back and forth between a first position shown in FIG. 5 and 6, and another position shown in FIG. 7 and 8. These positions may, for example, be determined by microswitches 44 and 45 which are activated when the cylinders 34 reach their respective positions.

Når klæbebåndet 29 ved Hjælp af påføringsrullen 39 er blevet bragt til at ligge an mod og at klæbe fast til oversiden af emballagen 27, føres trykskoene 32 og påføringsorganet 36 tilbage til deres tilbagetrukne stillinger ved hjælp af de tilhørende hydrauliske cylindre 33 og 37.When the adhesive tape 29 has been brought into contact with and applied to the upper surface of the packaging 27 by means of the application roller 39, the pressure shoes 32 and the application means 36 are returned to their retracted positions by the associated hydraulic cylinders 33 and 37.

10 Derefter startes motoren 43, hvilket bevirker, at emballagen 27, medens den stadig holdes fastklemt mellem trykskoene 35, ved hjælp af overføringsbåndet 41 føres fra den i fig. 6 viste stilling på transportbåndet 26 til den i fig. 7 viste stilling på transportbåndet 42. Overføringsbåndet 41 vil standse, når mi kroafbryderen 45 er blevet 15 aktiveret af en af trykluftcylindrene 34 eller et dertil fastgjort aktiveringsorgan. Under emballagen 27’s bevægelse fra transportbåndet 26 til transportbåndet 42 vil klæbebåndet 29, som det fremgår af fig. 7, af påføringsrullen 39 blive bragt i berøring med og fastklæbet til emballagen 27’s overside i hele dennes længde, hvorved sidevægsde-20 lene 15 og 16 sammenklæbes.Then the motor 43 is started, which causes the packaging 27, while still clamped between the pressure shoes 35, to be guided by the transfer belt 41 from the one shown in FIG. 6 on the conveyor belt 26 to the position shown in FIG. 7 on the conveyor belt 42. The conveyor belt 41 will stop when the switch 45 has been actuated by one of the compressed air cylinders 34 or an actuating means attached thereto. During the movement of the packaging 27 from the conveyor belt 26 to the conveyor belt 42, the adhesive belt 29, as shown in FIG. 7, of the application roller 39 is brought into contact with and adhered to the upper side of the packaging 27 throughout its length, thereby adhering the side wall portions 15 and 16.

I den i fig. 7 viste stilling for emballagen 27 vil de to par tryksko være placeret på hver sin side af emballagens bageste udskæring 22, og ved aktivering af cylindrene 33 bringes trykskoene 32 til at klemme emballagens bageste sidevægsendedele 19 og 20 tæt mod hinanden.In the embodiment shown in FIG. 7, the two pairs of pressure shoes will be positioned on either side of the rear cutout 22 of the package, and upon actuation of the cylinders 33, the pressure shoes 32 will clamp the rear side wall portions 19 and 20 of the package close to each other.

25 Endvidere føres et skæreorgan eller en kniv 46, der som vist i fig. 7 og 8 kan være gaffelformet, ved hjælp af en tilhørende pneumatisk cylinder 47 i vandret retning ind mod klæbebåndet således, at dette overskæres i en sådan position, at der dannes en fri endedel, der kommer til at hænge et stykke ned under emballagens underside. Et 30 påføringsorgan, der svarer til det i fig. 5 og 6 viste påføringsorgan 36, føres ved hjælp af en pneumatisk cylinder 48 (fig. 7 og 8) skråt opefter mod emballagens underside således, at klæbebåndet 29’s frie bageste endedel trykkes mod og fastklæbes til emballagens underside.25 A cutting means or knife 46 is further provided which, as shown in FIG. 7 and 8 may be fork-shaped by means of an associated pneumatic cylinder 47 in a horizontal direction towards the adhesive tape so that it is cut into such a position as to form a free end portion which will hang slightly below the bottom of the package. An application means similar to that of FIG. 5 and 6, by means of a pneumatic cylinder 48 (Figures 7 and 8), is guided upwardly towards the underside of the packaging such that the free rear end portion of the adhesive tape 29 is pressed against and adhered to the underside of the packaging.

149150 ίο149150 ίο

Trykskoene 32 og 35 føres nu ved hjælp af deres respektive cylindre til deres tilbagetrukne stillinger, klæbebåndsrullen 30 føres tilbage til sin i fig. 5 og 6 viste udgangsstilling, og det samme gælder trykskoene 35, der føres tilbage til udgangsstillingen derved, at motoren 43 5 aktiveres og bevæger overføringsbåndet 41 i tilbagegående retning, indtil mi kroafbryderen 44 påvirkes. Også det til cylinderen 48 hørende påføringsorgan samt påføringsorganet 39 og kniven 46 føres til deres tilbagetrukne stillinger. Klæbebåndets frie endedel 29 vil nu igen hænge lodret ned, og et nyt foldet emballageemne kan føres frem 10 til den i fig. 5 viste stilling, hvorefter forseglingsproceduren kan gentages med den nye emballage. Den færdigt lukkede emballage fjernes ved, at transportbåndet 42 sættes i gang, indtil emballagen er blevet ført til en ønsket position. Derefter standses transportbåndet 42 igen, så at det er klart til at få overført en ny emballage, der er 15 ved at blive forseglet.Pressure shoes 32 and 35 are now guided to their retracted positions by means of their respective cylinders, the adhesive tape roller 30 being returned to its position in FIG. 5 and 6, and the same applies to the pressure shoes 35, which are returned to the initial position in that the motor 43 5 is activated and moves the transfer belt 41 in the reverse direction until the power switch 44 is actuated. Also, the applicator member of the cylinder 48 as well as the applicator 39 and the knife 46 are guided to their retracted positions. The free end portion 29 of the adhesive tape will now hang down again vertically, and a new folded packaging blank can be advanced 10 to the one shown in FIG. 5, after which the sealing procedure can be repeated with the new packaging. The finished closed packaging is removed by moving the conveyor belt 42 until the packaging has been brought to a desired position. Then, the conveyor belt 42 is stopped again so that it is ready to transfer a new packaging which is 15 being sealed.

Det er klart, at forseglingen af emballagen ved påsætning af klæbebåndet inden for opfindelsens rammer kan foretages på mange andre måder end den, der er illustreret i fig. 5-8. Det væsentlige er, at hver af emballagens endedele holdes trykket mod hinanden, medens 20 klæbebåndet føres omkring den pågældende endedel. Det skal også bemærkes, at klæbebåndet om ønsket kan bringes til at ligge an mod emballagens underside i hele dennes længde. Det er også muligt at • anvende to eller flere klæbebånd, der strækker sig parallelt i emballagens længderetning. Der kan således i emballagens endedele være 25 udformet to eller flere med indbyrdes afstande liggende udskæringer 22, og disse parallelt forløbende bånd kan påføres emballagen samtidigt, fx på den ovenfor beskrevne måde.It is to be understood that the sealing of the package by the application of the adhesive tape within the scope of the invention may be effected in many ways other than that illustrated in FIG. 5-8. Essentially, each of the end portions of the packaging is held pressed against each other while the adhesive tape is passed around the end portion concerned. It should also be noted that, if desired, the adhesive tape may be brought into contact with the underside of the packaging throughout its length. It is also possible to use two or more adhesive tapes extending parallel to the length of the packaging. Thus, there may be formed in the end portions of the package two or more spaced apart cut-outs 22, and these parallel extending belts can be applied simultaneously to the package, for example in the manner described above.

EKSEMPELEXAMPLE

For at opnå en god endelukning af en emballage af den omhandlede 30 type skal sidevæggenes endedele 19 og 20 dimensioneres under hensyntagen til emballagens højde h, dvs afstanden mellem foldelinjerne 13' eller 14'. Ved en foldeemballage af den i fig. 3a og 3b type har det vist sig, at en sådan passende dimensionering med de emballage-In order to achieve a good end closure of a package of the present type, the end portions 19 and 20 of the sidewalls must be dimensioned taking into account the height h of the packaging, i.e. the distance between the fold lines 13 'or 14'. In a folding package of the embodiment shown in FIG. 3a and 3b type, it has been found that such a suitable dimensioning with the packaging

Claims

In practice, heights that can be considered are achieved when the height of the triangular end portions in the direction of the fold lines 13 'and 14' is approx. h + 5, and when the height of the triangular notches 25 'in the same direction is approx. 5, that is, the dimension of the end portions 19 and 5 20 of the sidewalls in the direction of the fold lines 13 'and 14' may suitably be h + 10. For example, the wide side wall 10 may have the dimensions 207 x 134 mm, while the height of the packaging, i.e. the width of the narrow side walls 11 and 12, may be 24 mm. The height of the triangular end portions 17 should then be about 24 + 5 = 29 mm and the height of the triangular notches 10 25 'should be about 5 mm. Thus, the total dimension of the end walls 19 and 20 of the side walls in the direction of the fold lines 13 'and 14' must be about 34 mm.

A method of forming a folding package (27) from a generally rectangular and planar blank having a pair of narrow sidewall panels (11 ', 12'), each delimited between a pair of substantially parallel fold lines (13 ', 14 '), the end portions of which are directed towards each other, and between which narrow sidewall fields are defined a wide sidewall field (10'), and with a pair of each of the narrow sidewall fields adjoining and outside these subfields (15 ') , 16 '), whose overall width perpendicular to the fold lines substantially corresponds to the width of the wide sidewall field, by which method the package blank is bent along the fold lines (13', 14 ') so that the two subfields (15', 16 ') with their lateral edges adjacent to each other will form a wide sidewall that faces a wide sidewall (10) formed by the wide sidewall field (10), which wide sidewalls (10; 15, 16) are substantially parallel , but has end portions (19, 20) directed towards the other the ends corresponding to the opposite ends of the fold lines (13, 14), after which the adjacent edges of the subfields (15 ', 16') are joined to each other by means of an adhesive tape (23, 29), characterized in that one or more adhesive tapes (23, 29) are also passed around at least one of the end portions of the packaging and adhered to the opposing wide side walls (10; 15, 16) while maintaining the end portions (19, 20) of these sidewalls.

The method according to claim 1, characterized in that the adhesive tape (23, 29) with which the adjacent side edges of the subfields (15, 16) are connected to each other is also passed around at least one of and preferably both of the packages. parts.

Method according to claim 1 or 2, characterized in that a packaging blank is used in which the folded end portions of the fold lines (13 ', 14') intersect within the outer parts of the adjacent end edges of the wide sidewall field (10 '). ) and of the subfields (15 ', 16') (Fig. 3a).

Method according to any one of claims 1-3, wherein the packaging is closed by two or more adhesive tapes (23, 29), characterized in that these are each passed around the opposite ends of both packages (27) and are brought for extending substantially parallel and spaced along at least one of the wide sidewalls of the packaging (10; 15, 16).

A method according to any one of claims 1-4, wherein 20 in the wide side walls end portions (19, 20) are disposed opposite one another (22), characterized in that the adhesive tape (s) (23, 29) is guided around the end portions of the packaging so that the adhesive tape (s) are included in these cuts.

Method according to claims 3 and 5, characterized in that a packaging blank is used, wherein the cut-outs (22) are designed such that their innermost limitation is substantially adjacent to or axially within the adjacent intersection points of the fold lines (13 ', 14 '). 149180

Apparatus for use in carrying out the method according to claims 1 and 2 and having means arranged to bend the packaging material along their parallel fold lines (13 ', 14') into tubular form, and with at least one adhesive tape reservoir (30), means arranged for carrying adhesive tape (23, 29) 5 from the reservoir toward the bent package blank along the adjacent side edges of the subfields (15 ', 16'), and with cutting means (46, 47) for cutting off the adhesive tape, characterized in that the adhesive tape applying means comprise moving means (26, 41, 43) arranged to successively move the 10 bent packing blanks past the adhesive tape reservoir with the adjacent side edges of the subfields (15 ', 16') and means (36, 37) arranged to guide the free end (29) of the adhesive strips in contact with the wide sidewall (10) of a package passing the reservoir opposite the reservoir, at the front end of the packaging, means (32, 33) are provided to contract extending the front end portions (19, 20) of the wide sidewalls while contacting the adhesive tape with said end portions, the cutting means (46, 47) being arranged to cut a piece of adhesive tape exceeding the length of the package, and at means 20 ( 48) guiding the free end of the cut adhesive tape around the rear end of the package and in contact with the wide side wall (10) and means (32, 33) of the packaging opposite the container to compress the rear end portions (19, 20) of the wide side wall, while contacting the adhesive tape with these end portions.

Apparatus according to claim 7, characterized in that the moving means are in the form of a conveyor (41) arranged to pass the packaging items past the adhesive tape reservoir (30) or reservoirs which are movable to a limited extent or stationary.

Apparatus according to claim 7 or 8, characterized in that the compression means comprise hydraulic or pneumatic cylinders (33).