• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    12 ABSTRACT A packaging container is disclosed, comprising at least three integrally connectedpanels forming bottom (4) and adjoining sides (5; 6) in a rectangular containerWhich is erectable from a singular sheet of board (1); at least one end of thecontainer being recessed by an end panel (8) Which is arranged retracted inside areinforced end zone, the reinforced end zone comprising strips (17; 18; 19) of sideand bottom panel material folded back onto the bottom and side panels along acrease line (7) Which is applied transversally in the bottom and side panels, Whereinthe end panel (8) is via a transverse bottom crease line (9) jointed to the folded backstrip (19) of the bottom panel, the end panel in each of its sides comprising an endpanel flap (15; 16), respectively, the end panel flaps jointed to the end panel (8) viacrease lines, each end panel flap (15; 16) co-extending in parallelism With anadjacent side panel (5; 6) in the container. A tongue (20; 21) is associated With theend panel (8) to extend inserted between the side panel (5; 6) and the appertaining strip (17; 18) in the side of the container. Figure 3e for publication
    公开号:SE1350258A1
    申请号:SE1350258
    申请日:2013-03-04
    公开日:2014-09-05
    发明作者:Niklas Pettersson
    申请人:Packsize Llc；
    IPC主号:
    专利说明:

    TITLE A packaging container and method for its production TECHNICAL FIELD OF THE INVENTION The present invention relates to a packaging container and a method for itsproduction. In particular, the invention relates to a box-shaped, rectangularpackaging container Which can be manufactured from a planar sheet of corrugatedboard by folding along cuts and crease lines applied to the planar sheet of board,Wherein the container in at least one recessed end thereof has an end panel that is retracted and protected by a reinforced end of the container.
    BACKGROUND AND PRIOR ART Box-shaped corrugated board containers having reinforced and protective ends findextensive use as transport packaging for fragile or easily damaged articles andgoods. The patent literature contains many examples of box-shaped containersmade from a singular planar sheet of corrugated board to Which cuts and creaselines are applied and along Which the planar sheet is foldable to provide arectangular box or container With a recessed and reinforced short side or end featuring a retracted end panel.
    For example, DE 80 20 235 U1 and US 2,593,895 both disclose board or corrugatedboard containers having reinforced end zones formed by folding along cuts andcrease lines applied to a singular planar sheet of board. These are representatives ofan approach Which relies on lugs engaging in slots to keep the end panels from falling and to hold the container sides in an upraised position.
    Another approach is represented by US 4,090, 607 and US 6,032,853 Which bothrely on adhesive or adhesive tape to hold the container sides and end panels in upraised position.
    Still another approach is represented through US 3,160,344 which relies at leastpartly on an article placed inside of the container to prevent the end panels fromfalling, or through US 4,396,118 which relies on outer end panels depending from alid to hold retracted inner end panels in upraised position inside of the outer end panels.
    WO 2006/ 101443 discloses a box-shaped container formed from a single sheet ofcorrugated board wherein end panels are arranged retracted inside of a reinforcedend zone. This container requires neither adhesive nor other measure to keep theend panels from falling once the container is closed, relying merely on interaction between the panels that constitute the closed container.
    It should be noted however, that the packaging container disclosed in WO 2006/ 101443 requires a “third hand” or a special tool to aid temporarily during theerecting of the container from a planar sheet of board, and the so formed containercannot maintain its upraised position and shape unless it is instantly closed by a lid.
    SUMMARY OF THE INVENTION The present invention aims at providing a packaging container of the above said art,which is self-supporting and stays in shape merely in result of the interactionbetween panels that constitute the container, thus requiring no adhesive or other locking means to maintain the container in a box-shaped structure.
    Another object of the present invention is to provide a packaging container of thisconstitution which is readily erectable from a planar sheet of board without requiring temporary assistance from a third hand or a tool.
    The objects are met in a packaging comprising at least three integrally connectedpanels which are jointed at longitudinal crease lines to form a bottom and adjoiningsides in a rectangular container erectable from a singular sheet of board. At leastone end of the container is recessed by an end panel which is arranged retractedinside of a reinforced end zone. The reinforced end zone comprises strips of side and bottom material folded back onto the bottom and side panels along a crease line applied transversally in the bottom and side panels. The end panel is via atransverse bottom crease line jointed to the folded back strip of the bottom panel,the end panel in each of its sides comprising an end panel flap, respectively, theend panel flaps jointed to the end panel via crease lines co-existing with thelongitudinal crease lines which adjoin the side panels to the bottom panel, the endpanel flaps co-extending with the adjacent side panels inside of the container in itserected condition, wherein a tongue associated with the end panel extends insertedbetween the side panel and the appertaining strip in each side of the container, respectively.
    More precisely, the tongues extend freely from opposite ends of a strip of end panelmaterial that is jointed to the end panel via a transverse top crease line that is parallel to said bottom crease line.
    Through these measures the end panel is prevented from falling outward in effect ofthe tongues which are inserted and arrested in the gaps formed between the sidepanels and the appertaining folded back strips. Simultaneously, the side panels arearrested in upraised position in effect of the same engagement between each side panel and the tongues associated with the end panel.
    Through these measures the end panel is further prevented from falling inward bysupport from the end panel flaps which extend alongside the side panels to bear against the bottom panel, inside of the container.
    A rectangular box-shaped container is this way achieved which is self-supportingwithout requiring any additional means to maintain its erected condition, andwhich can be erected from a planar sheet of board or corrugated board without requiring temporary help from a third hand or a tool.
    A separate lid can be provided for closing of the container. The separate lid mayinclude a lid panel and two lid flaps adjoining the sides of the lid panel vialongitudinal crease lines. In one embodiment, the lid flaps are sized for insertion ofthe lid flaps into the gaps that are formed between the side panels and therespective adjoining folded back strip of side panel material. In other words, the lid flaps and the end panel tongues co-exist in these gaps in a container which is closed through the separate lid. Another example of embodiment would be to havethe lid flaps on the outside of the container, and secure it with for example straps, clamps, adhesive, or tape.
    A lid may alternatively be integrated in the container, such as through a lid panelwhich is connected to one of the side panels via a longitudinal crease line. In suchembodiment a lid flap may be joined to the lid panel via a longitudinal crease line.Preferably, the lid flap will be sized for insertion into the appropriate gap that isformed between the side panel and the adjoining folded back strip of side panelmaterial, to co-exist with the tongue that is extended from the end panel into the subject gap.
    It is further to be noticed that the packaging as described is un-foldable into aplanar sheet of board constituting a packaging blank in which cuts and crease linesare applied and along which the planar board sheet is foldable to provide the rectangular box or container.
    More precisely, the board sheet comprises: 0 longitudinal crease lines running from end to end of the board sheet, thelongitudinal crease lines defining a bottom panel between two side panels; 0 a first transverse crease line running between the longitudinal side edges ofthe board sheet, the first transverse crease line defining an end zone in theend of the board sheet; 0 in the end zone, a pair of second transverse crease lines running between thelongitudinal crease lines, the second transverse crease lines defining an endpanel between a bottom crease line and a top crease line; 0 in the end zone, transverse and linear cuts through the material are formedto extend the top and bottom crease lines, respectively, from the longitudinalcrease lines to the longitudinal side edges of the board sheet, the cuts defining end panel flaps and end panel tongues adjoining the end panel.
    It Will be realized that this packaging blank results in a container which requires a separate lid for closing.
    It will however also be understood that one significant advantage achieved throughthis embodiment is that the width of a corrugated board web can be used in its entirety, without any cut outs or loss of material.
    Other embodiments of the packaging blank include one or more additional creaselines extended in the longitudinal direction of the board sheet to produce at leastone lid panel adjoining an adjacent side panel, or to produce a lid panel in one sideadjoining an adjacent side panel and in the opposite side adjoining a lid flap. In theembodiments comprising a lid that is formed integrally with the container, the endpanel flaps may advantageously be further extended towards the longitudinal edgeof the corrugated board web, this way providing a further extended co-extension with the erected side panels in the finished container.
    The process of forming a box-shaped container from a packaging blank as definedhereinabove comprises a few manual steps which can be performed without the aid of a tool or a helping third hand: 0 forming a reinforced end zone by folding, at the first transverse crease line,strips of sides and bottom panel material back towards the side and bottompanels; 0 raising the side panels by folding at the longitudinal crease lines; 0 raising the end panel by folding at the bottom crease line; 0 locking the side panels in upraised position by insertion of the end paneltongues in the gaps formed between the side panels and the folded backstrips of material adjoining the side panels; 0 supporting the end panel in upraised position by folding the end panel flaps inwards to bear against the bottom panel.
    Once the side panels are locked in the erected position by engagement from the endpanel tongues, the container is ready for instant use. If desired, the container canalternatively be set aside for later use, however continuously maintaining its box- shaped structure without additional securing means or measures.
    SHORT DESCRIPTION OF THE DRAWINGS Embodiments of the invention Will be explained below With reference made to the accompanying, schematic drawings. In the drawings, Fig. 1 illustrates the layout of cuts and creases applied to a planar sheet of board forming a packaging blank according to a first embodiment of the invention; Fig. 2 shows a separate lid for a box-shaped container that is formed from the packaging blank of Figure 1 , and Figs. 3a-3fe illustrate in partially broken away perspective views, the sequential steps in forming a box-shaped container from the packaging blank of Figure 1.
    DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS The packaging blank of Figure 1 is basically a rectangular sheet of board 1 having alongitudinal dimension L and a transverse or width dimension W. The board sheet1, preferably but not limited to a sheet of corrugate board, comprises cuts andcreases applied thereto in longitudinal and transverse directions. More precisely,two crease lines 2 and 3 extend in parallel in the longitudinal direction of the boardsheet 1, the crease lines 2 and 3 def1ning a bottom panel 4 and two adjoining sidepanels 5 and 6 of equal or substantially equal width. The longitudinal crease lines 2and 3 are extended to the transverse edge TE of the board sheet 1, the crease lines2 and 3 running through an end zone defined through a transverse crease line 7. Inthe end zone, additional transverse crease lines form an end panel 8 defined between a bottom crease line 9 and a top crease line 10.
    The bottom crease line 9 is extended transversely to each longitudinal edge LE ofthe board sheet 1, by cuts 11 and 12 that reach from the longitudinal crease lines 2and 3, respectively, to the adjacent longitudinal edge of the board sheet The topcrease line 10 is in similar way extended transversely to each longitudinal edge bycuts 13 and 14 that reach from the longitudinal crease lines 2 and 3, respectively, to the adjacent longitudinal edge. Between them, the cuts 11 and 13 form an end panel flap 15 adjoining the end panel 8 via the extended longitudinal crease line 2.In similar way, the cuts 12 and 14 form between them an end panel flap 16 adjoining the end panel 8 via the extended longitudinal crease line 3.
    Transversally oriented strips 17, 18 of side panel material and of bottom panelmaterial 19 are defined through, on one hand, the transverse crease line 7 and onthe other hand through the bottom crease line 9 and the appurtenant cuts 1 1 and12. The strips 17 and 18 of side panel material adjoin the bottom panel strip 19 viathe longitudinal crease lines 2 and 3, forming the lower corners of the finished container.
    In the very end of the packaging blank, strips of material are separated from thesheet of board 1 through the cuts 13 and 14. The strips form tongues 20, 21, eachadjoining a strip of end panel material 22 via the longitudinal crease lines 2 and 3,respectively. The strip 22 on the other hand adjoins the end panel 8 via the top crease line 9, this way connecting the tongues 20, 21 operatively to the end panel 8.
    In a packaging blank for a container in which both opposite ends are recessed andretracted inside a protective end zone, the ends of the packaging blank may be laid out as mirrored images of each other.
    In a way explained below with reference to Figures 3a-d, the packaging blank 1 canbe folded to form a box or container with an open top. A separate lid for closure ofthe container may be arranged as illustrated in Figure 2. The lid comprises a lidpanel 23 and two lid flaps 24, 25 adjoining the sides of the lid panel via longitudinalcrease lines 26 and 27. On the other hand, as illustrated in chain-dotted lines inFigure 1, a lid panel 28 can alternatively be integrally formed with the container,joined to one side panel via a longitudinal crease line 29. Additional panels 30 maybe foldably connected to the lid panel. In this embodiment there is board materialavailable to form extended end panel flaps 15' if desired, likewise indicated by chain-dotted lines in Figure 1.
    The course of forming a container from the sheet of board 1 will be explained belowwith reference to Figures 3a to 3f, wherein arrows I to IX represent the folding steps in consecutive order. It should be noted that for reasons of clarity and understanding the drawings of Figures 3c, 3d and 3e illustrate merely a partialcompletion of the container. The fully completed container is however shown in Figure 3f.
    Thus with reference to Figure 3a, a first step in the process of forming the containerfrom the sheet of board 1 comprises folding (see arrows I, II) the end panel flaps 15and 16 at the longitudinal crease lines 2 and 3, such that the end panel flaps rest on top of each other above the end panel 8.
    Next, the entire end zone is folded back towards the side and bottom panels byfolding (arrow III) at the transverse crease line 7, to take the position illustrated in Figure 3b.
    In the following next steps - in which the order is not important -, illustrated inFigure 3c, the tongues 20 and 21 are folded up at the crease lines 2 and 3 (arrowIV), and together with the strip 22 folded towards the end panel 8 at the top creaseline 10 (arrow V), where after the side panels are erected by folding (arrow VI) at longitudinal crease lines 2 and 3.
    In a finishing step shown in Figure 3d - showing one side open to improvevisualization -, the end panel 8 is raised by folding (arrow VII) at bottom crease line9 while simultaneously inserting the tongues 20, 21 in gaps 31 which are formedbetween the folded back side panel strips 17, 18 and the adjoining side panels 5, 6,this way arresting the side panels in the erected position by engagement from the tongues 20, 21 in the gaps 31.
    In a final step, see Figure 3e, the end panels are blocked from falling inward byfolding the end panel flaps 15 and 16 towards the side panels (arrows VIII, IX), suchthat each flap 15, 16 coextends in close parallelism with the adjacent side panel,the flaps now bearing with their lower edges 32, 33 against the bottom panel 4 in the finished container.
    Naturally, the invention is not limited to containers having exactly the proportionsdisclosed herein, but relates to the container construction principle and teachings which are recited in the appended claims.
    权利要求:
    Claims (11)
    [1] 1. A packaging container comprising at least three integrally connected panelsWhich are jointed at longitudinal crease lines (2, 3) to form a bottom (4) andadjoining sides (5, 6) in a rectangular container erectable from a singular sheet ofboard (1), at least one end of the container recessed by an end panel (8) Which isarranged retracted inside a reinforced end zone, the reinforced end zone comprisingstrips (17, 18, 19) of side panel material and bottom panel material folded backonto the bottom and side panels along a crease line (7) applied transversally in thebottom and side panels, Wherein the end panel (8) is via a transverse bottom creaseline (9) jointed to the folded back strip (19) of the bottom panel, the end panel ineach of its sides comprising an end panel flap (15, 16), respectively, the end panelflap jointed to the end panel (8) via a crease line extending the longitudinal creaseline (2, 3) through the end zone, the end panel flap (15, 16) co-extending inparallelism With an adjacent side panel (5, 6) in the container, characterized in thata tongue (20, 21) is associated With the end panel (8) to extend inserted between theside panel (5, 6) and the appertaining strip (17, 18) in the side of the container,.
    [2] 2. The packaging container of claim 1, Wherein a tongue (20, 21) extends freely fromeach opposite end of a strip (22) of end panel material that is jointed to the endpanel (8) via a transverse top crease line (10) Which is parallel to the bottom crease line (9).
    [3] 3. The packaging container of claim 1 or 2, Wherein a separate lid comprises a lidpanel (23) and two lid flaps (24, 25) adjoining the sides of the lid panel via longitudinal crease lines.
    [4] 4. The packaging container of claim 3, Wherein the lid flaps (24, 25) are sized to beinsertable into the gaps (31) that are formed between the side panels (2, 3) and therespective adjoining folded back strip (17, 18) of side panel material.
    [5] 5. The packaging container of claim 1 or 2, wherein at least one additional panel(28) is integrally connected to one or both side panels (5; 6) via a longitudinal crease line.
    [6] 6. The packaging container of claim 5, wherein at least one of the end panel flaps (15) is extended transversally beyond the corresponding side panel (5; 6).
    [7] 7. A packaging container un-foldable into a packaging blank (1) comprising: -longitudinal crease lines (2; 3) running from end to end of a sheet ofboard (1), the longitudinal crease lines defining a bottom panel (4) between two sidepanels (5; 6); -a first transverse crease line (7) running between longitudinal sideedges of the board sheet (1), the first transverse crease line defining an end zone inthe end of the packaging blank; -in the end zone, a pair of second transverse crease lines (9: 10)running between the longitudinal crease lines (2, 3), the second transverse creaselines defining an end panel (8) between a bottom crease line (9) and a top creaseline (10), characterized in that in the end zone, transverse cuts (11; 12; 13; 14)through the board sheet are formed to extend the top (10) and bottom (9) creaselines, respectively, from the longitudinal crease lines (2; 3) to the side edges of theboard sheet, the cuts defining end panel flaps (15; 16) and end panel tongues (20;21) associated with the end panel (8).
    [8] 8. A method for producing a packaging container from a packaging blank accordingto claim 7, the method comprising: -forming a reinforced end zone by folding, at the first transverse creaseline (7), strips (17; 18; 19) of sides and bottom panel material back towards the sideand bottom panels (4; 5; 6), thus forming a gap (31) between each side panel (5; 6)and the folded back strip (17; 18) of material adjoining the side panel; -raising the side panels (5; 6) by folding at the longitudinal crease lines(2; 3); -raising the end panel (8) by folding at the bottom crease line (9); 11 -locking the side pane1s (5; 6) in upraised position by insertion of theend panel tongues (20; 21) in the gaps (31); -supporting the end panel (8) in upraised position by fo1ding the endpanel flaps (15; 16) inwards to bear against the bottom pane1 (4).
    [9] 9. The method of claim 8, Wherein c1osing the container comprises insertion of 1idflaps (24, 25), depending from a separate 1id pane1 (23), into the gaps (31) that areformed between the side pane1s (5; 6) and the respective adjoining fo1ded back strip (17; 18) of side pane1 material.
    [10] 10. The method of c1aim 8, Wherein c1osing the container comprises securing offlaps (24; 25), depending from a separate 1id pane1 (23), against the outer side of theside pane1s (5; 6).
    [11] 11. The method of c1aim 8, Wherein c1osing the container comprises securing of aflap (30), Which depends from a 1id pane1 (28) that is integra11y connected With aside pane1 (5; 6), to the opposite side pane1 (5; 6) of the container.
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    同族专利:
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1350258A|SE538594C2|2013-03-04|2013-03-04|Packaging box and method for its preparation|SE1350258A| SE538594C2|2013-03-04|2013-03-04|Packaging box and method for its preparation|
    US14/771,979| US9586717B2|2013-03-04|2014-02-18|Packaging container and method for its production|
    EP14761021.6A| EP2964537B1|2013-03-04|2014-02-18|A packaging container and method for its production|
    PCT/SE2014/050192| WO2014137267A1|2013-03-04|2014-02-18|A packaging container and method for its production|
    JP2015561307A| JP6339115B2|2013-03-04|2014-02-18|Packaging container and manufacturing method thereof|
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