DK143596B

DK143596B - STACKABLE PACKAGING TRAY DESIGNED FROM A CUTTED SHEET

Info

Publication number: DK143596B
Application number: DK616173A
Authority: DK
Inventors: M Baudet
Original assignee: Epex
Priority date: 1972-11-15
Filing date: 1973-11-14
Publication date: 1981-09-14
Also published as: CH574848A5; GB1439249A; IE38512B1; JPS505184A; IE38512L; AU6250173A; NO139164C; DE2356466A1; AT337076B; DK143596C; DE2356466C3; CA1001133A; DE2356466B2; AR205978A1; BR7308960D0; NO139164B; JPS5641507B2; SE398482B; NL7315549A; ATA962573A

Description

143596 i143596 i

Den foreliggende opfindelse angår stabelbare emballagebakker af den i indledningen til krav 1 angivne art.The present invention relates to stackable packaging trays of the kind set forth in the preamble of claim 1.

Fra beskrivelsen til USA-patent nr. 3.029.010 kendes en bakke af denne art. Hver endevæg består her af en indvendig og en ud-5 vendig væg. I bakkens udfoldede tilstand ligger det stykke, som danner den indvendige endevæg yderst, og dette stykke er til siderne forlænget med hjørneflige som kan foldes og derved danne understøtningsflader for en anden bakke. Da denne kasse har dobbelte endevægge, og da hjømefligene rager ud over det rekt-10 angel, der er bestemt af sidevæggenes øvre kanter, går der temmelig meget materiale til at fremstille bakker ifølge denne fremgangsmåde. I den viste udformning vil det iøvrigt være vanskeligt at stable bakkerne således, at de står indeni hinanden da sidevæggene er lodrette og dobbelte og dermed kraftige.From the specification of U.S. Patent No. 3,029,010, a tray of this kind is known. Each end wall here consists of an inner and an outer wall. In the unfolded state of the tray, the piece forming the inner end wall is outermost, and this piece is extended to the sides with foldable corner tabs, thereby forming support surfaces for another tray. Since this box has double end walls and as the home tabs extend beyond the rectangle defined by the upper edges of the sidewalls, quite a lot of material goes into making trays according to this method. Moreover, in the embodiment shown, it will be difficult to stack the trays so that they stand inside each other as the sidewalls are vertical and double and thus strong.

15 Det er den foreliggende opfindelses formål at tilvejebringe en enkel og billig bakke med meget stor stivhed, og som ved stabling udviser en god modstandsevne, især mod sideværts forskydning af oven på hinanden stablede bakker.It is an object of the present invention to provide a simple and inexpensive tray of very high rigidity and which, upon stacking, exhibits good resistance, especially against lateral displacement of stacked trays on top of one another.

20 For at tilgodese dette formål er en emballagebakke af den indledningsvis omtalte art ejendommelig ved det i den kendetegnende del af krav 1 angivne, hvor man ved den indbyrdes fastgørelse af emballagens sidevægge med et første sæt hjørneflige sikrer en meget stor stivhed, der yderligere forbedres ved tilstede-25 værelsen af et andet sæt hjørneflige, der samtidig danner bærekanter i emballagens hjørner, og hvor en sideværts forskub-ning af oven på hinanden stablede bakker forhindres af de første sider og hjørnefliges relativt større højde, idet bærekanterne muliggør stablingen på en sådan måde, at når to emballa-30 ger ifølge opfindelsen stables oven på hinanden, vil de nedre hjørner af den øvre emballage hvile på den nedre emballages bærekanter og inden for de første hjørneflige.For the purpose of this purpose, a packaging tray of the kind referred to at the outset is characterized by the characterizing part of claim 1, whereby the interlocking of the side walls of the packaging with a first set of corner tabs ensures a very high stiffness, which is further improved by the provision of a second set of corner tabs which simultaneously form support edges in the corners of the packaging and wherein a lateral displacement of stacked trays on each other is prevented by the first sides and the relative height of the corner tabs, the support edges allowing for such stacking When two packages of the invention are stacked on top of one another, the lower corners of the upper packaging will rest on the supporting edges of the lower packaging and within the first corner tabs.

En særlig enkel og prisbillig udførelsesform er angivet i den kendetegnende del af krav 2.A particularly simple and inexpensive embodiment is given in the characterizing part of claim 2.

143596 2143596 2

Bakken ifølge opfindelsen er bemærkelsesværdig ved sin enkelhed i forhold til de kendte bakker. På grund af, at de hjørneflige, der danner bærekanteme i hjørnerne, er udskåret af dele af matricepappet, der befinder sig inden for det rektangel, 5 som er begrænset af sidevæggenes ydre kanter i udfoldet tilstand, således som angivet i den kendetegnende del af krav 3, begrænses kartonspildet og derfor affaldsmængden, hvilket yderligere bidrager til en økonomisk fremstilling af kartonen, især i forhold til de kendte bakker. Ved at lade foldelinierne ]_q hælde lidt udaf, som anført i krav 4, opnår man at give sidevæggene en let udadrettet åbning, således at et antal bakker lettere kan stables inden i hinanden, uden at det bliver nødvendigt at presse dem ned i hinanden. Det bemærkes i denne forbindelse, at de fire nedre hjørner af en øvre bakke vil blive 15 indsat i en art vinkelbeslag, der i hvert hjørne dannes af en sidevæg og dennes forlængelse, den første hjørneflig, og som rager et stykke op over bærekanten på den anden hjømeflig.The tray according to the invention is remarkable in its simplicity over the known trays. Because the corner tabs forming the supporting edges of the corners are cut out by portions of the matrix paper which are within the rectangle 5 bounded by the outer edges of the sidewalls in the unfolded state, as set forth in the characterizing part of claim 3, the waste of paperboard is reduced and therefore the amount of waste, which further contributes to the economical production of the cardboard, especially in relation to the known trays. By sliding the fold lines slightly outwardly, as set forth in claim 4, it is possible to give the side walls a slightly outward opening, so that a number of trays can be more easily stacked within each other without the need to squeeze them into each other. In this connection, it should be noted that the four lower corners of an upper tray will be inserted into a kind of angular bracket formed in each corner by a side wall and its extension, the first corner tab, and projecting a portion above the supporting edge of it. second home tab.

Når foldelinierne i den anden sidevæg skæres skråt som angivet i den kendetegnende del af krav 5, giver man dels emballage-20 bakken et noget større indre volumen for løst gods og samtidigt bakken en større styrke til stabling på grund af en støtte, der er anbragt nøjagtigt i vinkelspidsen af hvert bakkehjørne. Såfremt der i midten af den trekantede del udføres en ny foldning, opnår man, at bærekanten tilnærmelsesvis følger bakkens 25 ydre hjørne, således at bakken mere effektivt kan benyttes til produkter med afrundede hjørner eller med cylindrisk form på en sådan måde, at automatisk pakning af disse produkter i én eller flere rækker muliggøres.When the fold lines in the second sidewall are cut obliquely as set forth in the characterizing part of claim 5, on the one hand, the packaging tray provides a somewhat larger internal volume for loose goods and at the same time a greater strength for stacking due to a support which is arranged. exactly at the angular tip of each hill corner. If a new folding is performed in the middle of the triangular part, it is obtained that the supporting edge follows approximately the outer corner of the tray 25, so that the tray can be used more efficiently for products with rounded corners or with a cylindrical shape in such a way that automatic packaging of these products in one or more rows are possible.

En variation af udførelsesformen ifølge krav 5 er angivet i 30 den kendetegnende del af krav 6, hvorved bakkens indre volumen bedre udnyttes. I en anden enkel udførelsesform er den første strimmelfligs foldelinier parallelle som angivet i den kendetegnende del af krav 7.A variation of the embodiment of claim 5 is indicated in the characterizing part of claim 6, whereby the interior volume of the tray is better utilized. In another simple embodiment, the fold lines of the first strip tab are parallel as indicated in the characterizing portion of claim 7.

En stærk bærekant for en oven over liggende bakke får man ved 35 hjælp af det i den kendetegnende del af krav 9 anførte.A strong supporting edge for an overlying tray is obtained by means of the means of the characterizing part of claim 9.

143596 3143596 3

Opfindelsen skal nærmere forklares i det følgende under henvisning til tegningen, hvor fig. 1 viser et tilskåret ark til en bakke ifølge opfindelsen, 5 fig. 2 et perspektivbillede af bakken ifølge opfindelsen, fig. 3 et udfoldet hjørne af en bakke, hvis indre hjørneflig er delt i to strimler, en øvre strimmel, som på skrå forbinder de to sidevægge og nedre strimmel, som danner en ret vinkel, fig. 4 et perspektivbillede af dette hjørne, 10 fig. 5 et udfoldet bakkehjørne med trekantet bæreorgan, der udgår fra hjørnespidsen, fig. 6 et perspektivbillede af dette hjørne, fig. 7 et billede set oppefra af et hjørne, der har en foldekant i midten af bærestykket for tilpasning til produkter med 15 afrundede hjørner eller cylindriske produkter, fig. 8 et perspektivbillede af et hjørne med et trekantet bærestykke med en hjørneflig, der er opdelt i to strimler, og hvor den nedre strimmel danner en rumvinkel på 90° i overensstemmelse med fig. 4, 20 fig. 9 et udfoldet hjørne af en bakke med firkantet bærestykke, fig. 10 samme hjørne i en sammenfoldet bakke, fig. 11 samme hjørne i båkk&i, når den er klar til brug, fig. 12 et perspektivbillede af bakkehjørnet med forskudt bærestykke uden afskæring ved basis, 4 143596 fig. 13 et planbillede af et hjørne, i hvilket bærestykket dannes af en trekantet hjørneflig med udvendig pålimningstunge.The invention will be explained in more detail below with reference to the drawing, in which 1 shows a cut sheet for a tray according to the invention; FIG. 2 is a perspective view of the tray according to the invention; FIG. 3 is an unfolded corner of a tray whose inner corner tab is divided into two strips, an upper strip connecting the two sidewalls and the lower strip forming a right angle obliquely; FIG. 4 is a perspective view of this corner; FIG. 5 shows an unfolded tray corner with a triangular carrier extending from the corner tip; FIG. 6 is a perspective view of this corner; FIG. 7 is a top view of a corner having a fold edge in the center of the support for adaptation to products with 15 rounded corners or cylindrical products; FIG. 8 is a perspective view of a corner having a triangular support with a corner tab divided into two strips, the lower strip forming a 90 ° space angle according to FIG. 4, 20 FIG. 9 shows an unfolded corner of a square with a square support; FIG. 10 shows the same corner in a folded tray; FIG. 11 the same corner of the bookcase & i when ready to use, fig. 12 is a perspective view of the tray corner with offset support without cutting at base; FIG. 13 is a plan view of a corner in which the support is formed by a triangular corner tab with an external adhesive tongue.

Den i fig. 1 og 2 viste bakke omfatter en i det væsentlige rektangulær bund 1 med to modstående langsidevægge 2 og to modstå-5 ende kortsidevægge 3.The FIG. 1 and 2 comprise a substantially rectangular base 1 with two opposite long side walls 2 and two opposing short side walls 3.

Sidevæggene 2 bukkes langs en foldelinie 4, medens sidevæggene 3 bukkes omkring en foldelinie 5. Sidevæggene 3 har i midterområdet indsnit 6, medens deres højde ved enderne i det væsentlige er større end højden af de lange sidevægge.The sidewalls 2 are bent along a fold line 4, while the sidewalls 3 are bent around a fold line 5. The sidewalls 3 have in the center region 6 while their height at the ends is substantially greater than the height of the long sidewalls.

10 I bakkens fire hjørner er sidevæggene fastgjort til hinanden to og to ved hjælp af en første hjørneflig 7, som går i ét med den første sidevæg 3, og en anden hjørneflig 8, som går i ét med den anden sidevæg 2.10 In the four corners of the tray, the side walls are secured to each other two and two by means of a first corner tab 7 which integrates with the first side wall 3 and a second corner tab 8 which integrates with the second side wall 2.

Hver hjørneflig 7 forlænger delvis og i sidegående retning side-15 væggen 3, således at den øvre kant 7a er i forlængelse af den øvre kant 3a af sidevæggen 3. Hjørnefligene 7 ombukkes i forhold til sidevæggen 3 langs en foldelinie 9, der har en ganske let hældning udad i forhold til sidevæggens 3 kant 3b.Each corner tab 7 partially and laterally extends the side-wall 3 so that the upper edge 7a is in extension of the upper edge 3a of the side wall 3. The corner tabs 7 are folded relative to the side wall 3 along a fold line 9 which has a quite slightly inclined outward to the edge 3b of the sidewall 3.

Den anden hjørneflig 8 har en første foldelinie 10, der går fra 20 den ydre kant 2a til foldelinien 4 til et punkt på denne sidstnævnte linie, der ligger i en vis afstand fra spidsen af bunden l's hjørnevinkel. Det foretrækkes, åt foldelinien 10 er let skråtstillet udad i forhold til foldelinien 4. Hjørnefligen 8 omfatter to dele 8a og 8b, der er adskilt af en foldelinie 11, 25 der i det væsentlige er parallel med linien 10 og anbragt midt i hjørnefligen 8.The second corner tab 8 has a first fold line 10 extending from the outer edge 2a of the fold line 4 to a point on this latter line located at a certain distance from the tip of the corner angle of the bottom 1. It is preferred that the fold line 10 is slightly inclined outwardly relative to the fold line 4. The corner tab 8 comprises two portions 8a and 8b separated by a fold line 11, 25 which is substantially parallel to the line 10 and located in the middle of the corner tab 8.

Som det fremgår af fig. 1, er hjørnefligene 7 og 8 tilskåret inden for et rektangel, der er begrænset af kanterne 2a og 3a for bakkens sidevægge,idet hjørnefligene 7 og 8 har komplemen-30 tære former, således at kartonaffaldet begrænses til et minimum.As shown in FIG. 1, the corner tabs 7 and 8 are cut within a rectangle bounded by the edges 2a and 3a of the side walls of the tray, the corner tabs 7 and 8 having complementary shapes so that the cardboard waste is minimized.

Fig. 2 viser bakken ifølge fig. 1 i rejst tilstand. Ved fold- 143596 5 ningen bukkes hjørnefligene 7 vinkelret på sidevæggene 3, således at hjørnefligenes inderflade ligger an imod sidevæggenes 2 yderflade. Hjørnefligene 8 bukkes således, at delen 8b's yderflade ligger an imod sidevæggenes 3 inderflade, hvorved de-5 len 8a danner et skråtstillet stykke eller afskåret hjørne indenfor hvert af bakkens hjørner.FIG. 2 shows the ground according to FIG. 1 in raised state. In folding, the corner tabs 7 are bent perpendicular to the side walls 3 so that the inner surface of the corner tabs abuts the outer surface of the side walls 2. The corner tabs 8 are bent so that the outer surface of the portion 8b abuts against the inner surface of the side walls 3, whereby the portion 8a forms an inclined piece or cut corner within each of the corners of the tray.

Hjørnefligene fastgøres fortrinsvis ved limning, idet limen kan påføres på den ene side af det tllskårne matricepap fig. 1. Heraf ses, at det er nok at påføre lim på en del af hjørnefli-10 gene 7's inderflade og på den del af sidevæggene 3's inderflade, der er beregnet til at fastholde hjørnefligene 8's dele 8b.The corner tabs are preferably fastened by gluing, the glue being applied to one side of the cut die cardboard fig. 1. From this it is seen that it is sufficient to apply glue to a part of the inner surface of corner corners 7 and to the part of the inner walls of the side walls 3 which is intended to hold the parts 8b of corner corners 8.

Det er indlysende, at bakken ifølge opfindelsen ved en sådan montage har en meget stor stivhed, samtidig med at den giver en stor styrke for stabling.It is obvious that in such an assembly, the tray according to the invention has a very high stiffness, while providing a high strength for stacking.

15 Hvis man oven på den i fig. 2 viste bakke anbringer en dermed identisk anden bakke, indsættes de fire nedre hjørner af den øvre bakke i en art vinkelbeslag, der i hvert hjørne dannes af en sidevæg og dennes forlængelse, den første hjørneflig, og som rager et stykke op over bærekanten på den anden hjørne-20 flig. Den lette skråstilling eller hældning af foldelinj.erne 9, 10 og 11 letter bakkens indsættelse, idet de giver sidevæggene 2 og 3 en let udadrettet åbning.15 On top of the one shown in FIG. 2 provides an identical second tray, the four lower corners of the upper tray are inserted into a kind of angular bracket formed in each corner by a side wall and its extension, the first corner tab, which protrudes a portion above the supporting edge of the tray. second corner-20 tab. The slight inclination or inclination of the fold lines 9, 10 and 11 facilitates the insertion of the tray, giving the side walls 2 and 3 a slightly outward opening.

Desuden hviler den øvre bakke på den øvre bærekant af de skråtstillede stykker eller afskårne hjørner, dannet af bærestykker-25 ne 8a, som er en del af hjørnefligene 8.In addition, the upper tray rests on the upper support edge of the inclined pieces or cut corners formed by support pieces 8a which are part of the corner tabs 8.

Den øvre bakke er således fuldstændig blokeret undtagen for løftning.The upper tray is thus completely blocked except for lifting.

I den i fig. 3 og 4 viste udførelsesform er hjørnefligen 8 delt i to strimmelhalvflige af en langsgående snitlinie 12, således 30 at en øvre strimmel beholder sine egenskaber som bærestykke i hjørnet med delene 8a og 8b, medens en nedre strimmel 8c følger hjørnets form og anbringes tæt op ad fligen 3 ved hjælp 6 143596 af foldelinien 13.In the embodiment shown in FIG. 3 and 4, the corner tab 8 is divided into two strip hemispheres by a longitudinal section line 12 such that an upper strip retains its properties as a support in the corner with the parts 8a and 8b, while a lower strip 8c follows the shape of the corner and is placed close up tab 3 by means of fold line 13.

I fig. 5 og 6 er hjørnets udformning ændret, idet den rektangulære del 8a af hjørnefligen 8 er erstattet af en trekantet del 8d, begrænset af skrå foldelinier 10a, 11a, og hvis spids 5 befinder sig, hvor foldelinierne 4, 5 mødes i bunden 1, om hvilke foldelinier 4, 5 sidevæggene 2 og 3 er bukkede, hvilket giver bakken en større styrke til stabling på grund af, at støtte- og bæreorganet er anbragt nøjagtigt i spidsen af hvert bakkehjørne.In FIG. 5 and 6, the shape of the corner is changed, the rectangular part 8a of the corner tab 8 being replaced by a triangular part 8d, limited by inclined fold lines 10a, 11a, and the tip 5 of which is where the fold lines 4, 5 meet at the bottom 1, about which fold lines 4, 5 the sidewalls 2 and 3 are bent, giving the tray a greater strength for stacking because the support and carrier are positioned exactly at the tip of each tray corner.

10 For at lette pakningen af produkter med afrundede hjørner eller med cylindrisk form i bakken er der midt i den trekantede del 8d (fig. 7) udført en ny foldning 14, hvorved man opnår en tilnærmelse til bakkens ydre hjørne ved hjælp af et skråtstillet bærestykke eller tilskåret hjørne, der såleds muliggør en auto-15 matisk pakning af disse produkter i en eller to rækker.10 In order to facilitate the packing of products with rounded corners or cylindrical shape in the tray, a new folding 14 is made in the middle of the triangular part 8d (Fig. 7), thereby obtaining an approximation to the outer corner of the tray by means of an inclined support piece. or cut corner, thus enabling an automatic packaging of these products in one or two rows.

Fig. 8 er en udførelsesform svarende til fig. 3 og 4 tilpasset til et trekantet bærestykke som i fig. 5 og 6.FIG. 8 is an embodiment similar to FIG. 3 and 4 adapted to a triangular support as in FIG. 5 and 6.

I den i fig. 9’ viste ændrede udførelsesform for hjørnet, kan en indadvendt foldning 21 med hensigtsmæssige vinkler omkring 20 en linie danne et firkantet bærestykke 8b, 8d, som, på den en-gangmonterede bakke kan skubbes indad ved hjælp af et hul 22 i hjørnet mellem sidevæggen 3 og hjørnefligen 7 (fig.H ). I denne udførelsesform er det muligt at sammenfolde hjørnet og dermed bakken, efter at den er limet, takket være en diagonalfolde-25 linie 23 i sidevæggen 2, hvorved det bliver muligt at levere en forud foldet, men helt flad bakke til brugeren (fig. 10).In the embodiment shown in FIG. 9 ', shown in the embodiment of the corner, an inwardly folding 21 at suitable angles about 20 can form a square a support piece 8b, 8d which, on the once mounted tray, can be pushed inwards by means of a hole 22 in the corner between the side wall 3 and corner tab 7 (Fig. H). In this embodiment, it is possible to collapse the corner and thus the tray after it is glued, thanks to a diagonal fold line 23 in the side wall 2, thereby providing a pre-folded but completely flat tray for the user (fig. 10).

Fig. 12 viser et bakkehjørne, hvor man har forskudt en hjørne-bæredel over imod siden 3. I denne udførelsesform forbliver hjørnefligen 8b i fast forbindelse med sidevæggen 3. Foldelinien 11b fungerer som hængsel ved monteringen, således at lim-30 ningen udføres mellem hjørnefligen 8b og sidevæggen 3. Delen 8d er følgelig forskudt maksimalt hen imod sidevæggen 3, hvilketFIG. 12 shows a tray corner where a corner support part has been displaced towards the side 3. In this embodiment, the corner tab 8b remains firmly in contact with the side wall 3. The fold line 11b acts as a hinge at the mounting, so that the sizing is performed between corner tab 8b and the side wall 3. The portion 8d is consequently displaced maximally towards the side wall 3, which

Claims

143596 thus enables packaging of box-shaped products. In all models, it is possible to swap the long and short sidewalls without thereby degrading the construction or the stiffness of the tray.

1. Stackable packaging tray of the kind formed from a cut sheet, e.g. of matrix paper, and having a bottom (1) and side walls (2, 3), two and two interconnected by means of corner tabs (7,8) which constitute a direct extension of the side walls (2,3) , which is folded into the adjacent side at each corner of the package, characterized in that in each corner one of the side walls (3) is directly elongated with the first corner tab (7) which also protrudes slightly with its side wall (3). higher than the second sidewall (2) and is bent so as to abut the outer surface of this second sidewall (2), which second sidewall (2) is directly extended by the second corner tab (8) which lies abutting the inner surface of the first sidewall (3) in such a way that a portion of this second corner tab (8) forms in each corner of the tray a support edge disposed 20 below the upper edge (3a) of the first sidewall (3) , so that this carrier can support the bottom of a corresponding stacked tray above.

Packaging tray according to claim 1, characterized in that the second corner tab (8) has a first fold line (10) extending from the outer edge (2a) of the associated sidewall to its bottom fold line (4) at a point located in a a distance from the tip of the corner angle of the bottom (1) and wherein said second corner tab (8) in its center portion has a second fold line (11) substantially parallel to the first fold line (10), and 30 wherein a portion (8b) of the tab (8) furthest from the second sidewall (2) abuts the inner surface of the first sidewall (3), while the portion (8a) between the two fold lines (10 and 11) forms a cut-off in the corner of the packaging corner (8a), the upper edge of which is the supporting edge.

Packaging tray according to claim 2, characterized in that the two corner flaps (7,8) are dimensioned such that the unfolded condition of the 5th tray falls within a rectangle bounded by the outer edges of the side walls (3, 2).

Packaging tray according to claim 2 or 3, characterized in that the fold line (9) of the first corner tab (7) and the second corner tab (8) two fold lines (10, 11) are inclined substantially outwardly at a small angle.

Packaging tray according to claim 1, characterized in that the second corner tab (8) has two fold lines (10a, 11a) (Figs. 5 and 6) which divide it into two consecutive parts (8b, 8d), wherein it part (8b) of the tab (8) furthest away from the second sidewall (2) abuts the inner surface of the first sidewall (3), and the fold lines (10a, 11a) are inclined and intersected on it generally vertical fold line in the corner of the tray, so that within each corner a cut-off corner (8d) is formed, the upper edge of which forms the supporting edge. 20

Packaging tray according to claim 5, characterized in that the second corner tab (8) is divided into two parallel strip tabs (8b, 8d; 8c, Fig. 8) in its longitudinal direction, ie. generally horizontal by a section line (12), wherein the upper strip tab (8b, 8d) is divided by the two oblique fold lines 25 (10a, 11a) and the bottom strip tab (8c) has only one fold line (13) located in the bottom corner and substantially below the intersection of the fold lines of the upper strip tab (10a, 11a).

5 Patent claims.

Packaging tray according to claim 1, characterized in that the second corner tab (8) is divided into two parallel strips.