DE202009017721U1 - An edge protection element forming blank of corrugated cardboard - Google Patents

Abstract

An edge protection element (5) forming blank (1) of corrugated cardboard with fields in the state of the folded blank (1) a three-sided, in profile cross-section U-shaped enclosure (50) of web wall (51) and leg walls (52, 53) for attachment form on a to be protected, a narrow side having flat edge (81) of a packaged product (8), wherein the width (b) of the web wall (51) corresponds to the narrow side of the flat edge (81), characterized in that the web wall (51) by longitudinal a line (101) aligned, arranged in series web fields (2) is formed so that the web fields (2) along parallel, with their parallel spacing the width (b) of the web wall (51) determining web fold lines (201, 202) at least in a pair (30) a first wing panel (31) and this opposite a second wing panel (32) are hinged, that the web fields (2) along the row by the leg walls (52, 53) forming leg fields (4) are spaced apart along the row you extensions on the first or the first wing fields (31) or on the or ...

Description

The The invention relates to a blank forming an edge protection element made of corrugated cardboard with fields in the state of folded blank a three-sided, in profile cross-section U-shaped enclosure Web wall and leg walls to plug on one to form a protective, narrow-side flat edge, wherein the width of the web wall corresponds to the narrow side of the flat edge.

A generic blank is out DE-U1-20 2007 009 539 known. The known edge protection element is provided on its side facing away from the packaged with two rows of protruding lugs. Leg walls of the edge protection element are tapered in the profile cross-section trapezoidal and fixed to form a clamping receptacle. Clamping bias is increased by inserting a strip-shaped clamping element between the lugs on the rear side. Out DE-U1-29 900 732 is an edge protection element with a profile cross-section U-shaped enclosure is known, which is formed of such a hard material that a shape-containing clamping profile is formed. The known edge protection elements are preformed with dimensionally stable clamping profiles, so that an insert-related unfolding from a blank is not possible, or it may be necessary additional elements for fixing the profile cross section. In addition, in order to produce additional padding or spacing in an outer packaging, additional elements that are to be attached to the web wall, needed.

Of the The invention is based on the objectives of a corrugated cardboard blank Edge protection element to create, lying flat and without additional elements is available, can be erected by simple handling is and generates a clamping bias in profile cross-section, the one also when attaching to flat edges varying width Reliable clamping fixation manufactures. Also should be unfolded Condition of the cut an edge protection element with a body arise, which forms a spacer in an outer packaging.

The Objects of the invention will be described in connection with the features of the beginning said blank achieved in that the web wall by longitudinal formed a line aligned, arranged in series web fields is that along the web fields along parallel, with their Parallel distance the width of the web wall determining web fold lines at least in a pair a first wing field and this opposite a second wing panel are articulated that the web fields along the row forming through the leg walls Schenkelfelder are spaced along the row through Extensions on the first wing field (s) or are formed on the one or more wing fields, that each extension is a cut-out field that through one of the bridge fold lines crossing first extension portion and one in the opposite formed second and first wing panel cut second extension portion is, and that the bridge fold lines to a surface side of the fold are folding fold lines that when counterfolding of first wing field and associated second Wing field one by restoring force of the corrugated cardboard material create a conditional spring-elastic expansion force that corresponds to a clamping force, which exerted on a set in the enclosure flat edge becomes.

Of the Edge protection blank according to the invention has a Set of advantages. The wings can be as long-extending surface parts with a simple handle conveniently expose from flat cut surface, and she serve as scissor arms as a lever-like handle to the thigh fields against this folding-elastic material elastic restoring force in position for receiving the flat edge of a packaged goods, for example to bring a flat part in the form of a plate. The elastic Spreading force is due to folding between the first wing field and the associated second wing panel at least almost 180 ° generated. Fold in when inserting the package flat edge the wing fields and thus the thigh fields automatically back, so a flat edge even then picked up safely and is pinched when its narrow side is not equal to the width the bridge wall, but is smaller. Correspondence between the width the web wall and the width of the flat edge is to be understood as that the width of the Packgut flat edge is equal or smaller or In any case, not much bigger than the width of the web wall flat edge. In the clamping state of thigh fields pressed against a pack flat edge are the wing fields folded against each other Fixed position, where they also a folded Kör per form, for producing a defined packing distance of the packaged flat edge to the inner wall of an outer packaging is usable. In the whole forms the blank according to the invention as a fixing element, Distance element and / or shock buffer and pad can be used Edge protection packaging element, which transports lying flat in the stack can be, its provision correspondingly favorable is that erected by simple handling to the edge protection element becomes and thereby automatically clamping force also for produces varying flat edges and also integrated a spacer body for spacing and cushioning the flat edge packaged goods forms within an outer packaging.

Advantageously, the leg fields along the ridge field series from field to field are alternately arranged on the wing fields. A special ders simple design of the blank is achieved in that the web fields and the leg fields along the row have at least substantially the same length. To increase the length of the enclosure or instead the web system, the leg fields may be formed longer or shorter than the web fields. A particularly simple design of the leg fields, which transmits the clamping force particularly effective, is that they are formed by rectangular cut-out fields.

Around a pronounced border especially for longer ones To reach ridge fields, the thigh fields are advantageous formed transversely to the row line of maximum width, the at least is twice the width of the web fields.

At the blank according to the invention can be in a particularly simple manner at least one end of the row aligned web fields form a stop element that the packaged goods against displacement or offset in the direction of the bordered edge guaranteed. According to the invention Embodiment, at least one corner portion is formed, the formed by an extension on one of the wing panels is complete, opposite to the other wing field is cut free, wherein in the corner section by means of the row line transversely directed folding line a stop section is articulated, which forms the stop element in the folded blank. Advantageous can also be attached to the stopper section on a flat side of the Flat edge to be lying next holding section hinged. Especially advantageous At the end, a border can be formed through the abutment portion with the ridge field width corresponding dimension and the holding portion is formed in the folded state.

Regarding particularly easy handling and function-optimizing design There is an embodiment in that the at least one pair the wing fields at least three mutually arranged Thigh fields includes.

Of the Blank according to the invention can be used to adjust characterized particularly pronounced folding clamping force be that folding to an area side of the blank Fold lines of the at least one pair of the wing panels are arranged with folding resistors, which after the removal of the Thigh fields from the flat cut surface in one Position with obtuse angle between the wing fields remain as starting form for further folding.

On the said and still others appropriate and advantageous embodiments of the invention are subclaims directed. Features of the designs result in each Combination to the essential according to the invention Solution, so this does not apply to specifically described embodiments is restricted, but also essential individual measures in particular of the embodiments without the entirety the features of described embodiments in sub-combinations are protective. Each part feature of an embodiment is a part of feature further, not shown embodiments to understand. Only particularly appropriate and advantageous forms of training or opportunities The invention will be apparent from the following description of the in the schematic drawing illustrated embodiments described in more detail. Show it

1 a blank according to the invention of an edge protection element made of corrugated cardboard,

2 a further blank according to the invention of an edge protection element made of corrugated cardboard,

3 formed in axonometric view of blanks of the invention edge protection elements in conjunction with flat edges of a packaged flat part and

4 in axonometric view also erected from blanks invention edge protection elements in conjunction with flat edges of a packaged flat part in the arrangement for insertion in an outer packaging.

According to 1 is an inventive blank 1 designed as an elongated rectangular format. The cut 1 consists advantageously of double-wave covered corrugated cardboard W different corrugation of the two Wellpappelagen. The cut 1 is with a longitudinal centerline 101 and a perpendicular transverse centerline 102 shown. Fields of the blank 1 are with respect to the transverse center lines 102 symmetrically arranged and formed. The waves of the two corrugations are parallel to the transverse centerline 102 directed.

Along the midline 101 are web fields 2 uniform width b formed. The jetty fields 2 become by at distance b parallel web folding lines 201 . 202 limited and are along the longitudinal center line (row line 101 ) arranged in series. The cut 1 is also in a couple 30 of wing fields 3 divided, each from one of the same longitudinal halves of the blank 1 are formed. The one (first) wing field 31 is at the one (first) bridge fold line 201 hinged, while the other (second) wing field 32 opposite to the other (second) bridge folding line 202 is articulated. The bridge fold lines 201 . 202 are through three thigh fields 4 interrupted so that the web fields 2 at a distance of uniform length L of the leg fields 4 along the Mittelli never 101 strung together.

The thigh fields 4 are in the manner of flaps along the row by a cut in the middle extension on the second wing field 32 and two extensions on the first wing field 31 educated. Each extension is a rectangular field 40 at right angles to the bridge fold lines 201 . 202 cut with U-shaped cut lines. One recognizes that every cut-out field 40 in a first extension section 401 and a second extension section 402 is divided. The first extension section 401 crosses, starting from the wing field 3 where it juts out, the jetty fold lines 201 . 202 Thus, forms a strip portion with web width b between the thereby distanced land fields 2 , Through the second extension section 402 is the thigh field 4 in the other wing field 3 completely cut free.

In the exemplary embodiment, the leg fields 4 and two footbridges 22 . 23 , each one the distance between the thigh fields 41 . 42 respectively. 42 . 43 determine the same lengths L, l. The jetty fields 21 . 24 at the ends of the blank 1 are half as long as the web fields 22 , In the exemplary embodiment, the leg fields 4 transverse to the longitudinal center line 101 a width B, which is about 3.5 times the width b of the web fields 2 is. The middle thigh field 42 protrudes at the second wing field 32 and the other two thigh fields 41 . 43 protrude at the first wing field 31 out.

3 shows four edge protection elements 5 , each from a blank 1 in 1 folded corresponding blank. Longer edge protection elements 5 of a first pair become long on long flat edges 81 a packaged goods 8th , namely a rectangular plate plugged. Shorter edge protection elements 5 of a second pair are on short sides of the packaged goods 8th set. The plate or narrow edge sides 810 the flat edges 81 have a thickness that is substantially equal to the web field width b in the embodiment.

In 3 are one of the long edge protection elements 5 as well as one of the short edge protection elements 5 already to the packaged goods 8th set, while the other edge protection elements 5 with distance to the packaged goods 8th are shown. Although they are separated from the plate, they are already shown in a shape that they take in the attached to the plate edge state.

According to the invention, it is important that the edge protection element 5 if, for example, from the blank according to 1 erected and attached, by material elastic restoring force a clamping force between in the embodiment on the one hand, the two thigh fields 41 . 43 and on the other hand, the third leg field 42 exercises.

The bridge fold lines 201 . 202 are formed by creasing and / or scribe lines, which only to one surface side of the blank 1 wrinkles. Suppose that in 1 the bridge fold lines 201 . 202 are designed to fold upwards, so arises in the 3 on the left side illustrated edge protection element 5 by being in 1 the first wing field 31 with the protruding thigh fields 41 . 43 in lower level leaves and the jetty fields 2 around the bridge fold line 201 folded up by 90 ° and also the second wing field 32 around the second bridge fold line 202 unfolds.

In the exemplary embodiment, the web folding lines 201 . 202 in combination with the shaft material W and the orientation of the web fold lines 201 . 202 form perpendicular to the shaft direction such folding resistances that the two wing fields 3 after the second wing field 32 completely against the first wing field 31 has been folded and springs back again, take a position in which the unfolded blank 1 its shape automatically with obtuse angle between the two wing fields 3 or accordingly, in the profile cross-section, between the thigh fields 4 holds. If you fold, starting from this starting position or in one go from the flat blank 1 the second wing field 32 against the first wing field 31 , then the edge protection element passes 5 if you look at the wing fields 31 . 32 against each other or holds together, in the in 3 on the left, against considerable folding force resulting from the folding resistances between the two wing panels 31 . 32 , This Auffaltkraft corresponds to the edge protection element 5 immanent independent clamping force between the thighs 41 . 43 on the one hand and the thigh field 42 on the other hand, a clamping force that comes into effect when the in 3 freely shown edge protection elements 5 by first holding the wing fields together 31 . 32 and then by releasing it on the flat edge 81 be attached to the plate. Accordingly, the edge protection element 5 , this in 3 already attached to the edge of the plate, handled. It may be advantageous and convenient between the wing fields 3 Auffaltkräfte or corresponding clamping forces set up, which can be adjusted by selecting the shaft material in combination with the Faltlinienstruktur, optionally in accordance with temporarily foldable stable folding intermediate positions, as required in size.

In 3 it becomes clear that every edge protection element 5 an effective in the infected state to the plate clamp enclosure 50 forms whose web wall 51 through the row of footbridges 2 is formed and, in the embodiment, whose leg wall 52 through the thigh fields 41 . 43 and its other leg wall 53 through the thigh field 42 arises. In this way, each edge protection element forms 5 a type of connector strip that is plugged onto a protected flat side of a packaged goods. The jetty fields 2 lie on the narrow side 810 and provide additional protection against scratching.

2 shows a blank 1 which is equally like the cut in 1 designed, but in addition at each end with a corner section 7 is trained. In the embodiment, each corner section 7 through an end extension on the second wing field 32 formed opposite the first wing field 31 completely cut free. The corner section 7 is in a continuation section 71 and sections linked to it 72 . 73 divided. The extension section 71 protrudes, starting from the second wing field 32 in one blank longitudinal half, in the other blank longitudinal half. At this extension section 71 is the section 73 in the form of a holding section 73 hinged, the opposite of the second wing field 32 and the first wing field 31 is cut free, by means of a cutting line 703 that in the fold line 202 lies and a cutting line 704 starting from the fold line 202 perpendicular to this extends to the cutting edge. The holding section 73 is about two parallel fold lines 701 . 702 to the extension section 71 hinged. The fold lines 701 . 702 make up the section 72 as web-like abutment portion, the web width equal to the width b of the web fields 2 is.

Out 4 is the arrangement and function of the corner sections 7 in the exemplary embodiment of edge protection elements 5 It can be seen on a packaged goods 8th are attached in the form of a plate. How out 2 and 5 As can be seen, the longitudinal distance between the fold lines 701 that the stopper sections 72 to the extension sections 71 so that it is at least substantially equal to the length of the flat edges to be bordered 81 the plate is to which the edge protection elements 5 in the pair opposite are plugged.

In 4 stand the holding sections 73 even more or less up and down. However, they are folded to the finished packaging of the plate, so that they come to rest flat on the plate surface. It creates corner enclosures 70 , respectively through the stopper section 72 the holding section 73 and the adjacent jetty 21 , respectively. 24 are formed. Between the stop sections 72 transverse to the extension of the edge protection element 5 Form stop elements, the plate is in the longitudinal direction of the edge protection element 5 immovably edged.

Out 4 it can also be seen that the edge protection elements 5 expedient in adaptation to an outer packaging 9 be provided. This from the flat pack goods 8th and the edge protection elements 5 Assembled structure is in the outer packaging 9 used, in particular in rail-like guides 92 the outer packaging 9 inserted. The wing flaps 31 . 32 are dimensioned so that they folded together form a two-ply spacer body with a dimension such that the composite of packaged goods 8th and edge protection elements 5 in full seat in the outer packaging 9 to come to rest. This also form the extension sections 71 and end sections 320 the wing fields 32 of which the extension sections 71 stand out, integrated spacers. In the whole form the folded wing fields 3 and their end protruding portions in adaptation to the inner dimensions of the outer packaging 9 as well as according to the dimension of the packaged goods 8th special distancing fixation elements and impact buffer or cushion in the outer packaging 9 ,

In the example according to 4 it is advantageous that, as shown, the two edge protection elements 5 oppositely oriented opposite to the plate are attached. Each surface side becomes in this way of three thigh fields 4 covered, with each edge protection element 5 only three thigh fields 4 having.

In the same way as in 4 shown, is also advantageous in the embodiment of 3 illustrated composite of packaged goods 8th and edge protection elements 5 inserted in an outer packaging, wherein the edge protection elements 5 or the outer packaging in adaptation to the goods to be packaged 8th are dimensioned so that the rich packaging seat is made.

The edge protection elements according to the invention 5 are by no means limited to the dimensions shown in exemplary embodiments. In particular, the web fields in the longitudinal direction of the edge protection element can be made substantially shorter than the leg fields or, conversely, the web fields can be longer than the leg fields. In particular, the number of leg fields, which are advantageously arranged identically and regularly alternately, can be increased, that is, substantially more than one or two. However, it has been found that, in each case in adaptation to packaged goods with flat edges, edge protection elements with three thigh fields, advantageously with the dimensions described, a good support giving enclosure with optimal conditioning of the narrow sides 810 train at the bridge wall. In particular, it may also be advantageous, the leg fields 4 not, as in the embodiments rectangular, but in another form, for example triangular form. Instead of a pair of wing panels, several pairs of wing panels can be formed in series.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 202007009539 U1 [0002]
• DE 29900732 U1 [0002]

Claims (14)

An edge protection element ( 5 ) forming blank ( 1 ) of corrugated cardboard with panels in the folded blank ( 1 ) a three-sided, in profile cross-section U-shaped enclosure ( 50 ) from web wall ( 51 ) and thigh walls ( 52 . 53 ) for mounting on a flat edge to be protected, having a narrow side ( 81 ) of a packaged goods ( 8th ), wherein the width (b) of the web wall ( 51 ) of the narrow side of the flat edge ( 81 ), characterized in that the web wall ( 51 ) along a line ( 101 ) aligned, in-line web fields ( 2 ) is formed, that to the web fields ( 2 ) along parallel, with their parallel spacing, the width (b) of the web wall ( 51 ) determining web folding lines ( 201 . 202 ) at least in a pair ( 30 ) a first wing field ( 31 ) and this opposite a second wing field ( 32 ) are hinged that the web fields ( 2 ) along the row through the leg walls ( 52 . 53 ) forming thigh fields ( 4 ) spaced along the row by extensions on the first wing field (s) ( 31 ) or at the one or more wing fields ( 32 ) are formed, that each extension a cutout field ( 40 ), which by a the bridge folding lines ( 201 . 202 ) crossing first extension section ( 401 ) and one in the opposite second or first wing field ( 3 ) cut second extension section ( 402 ) is formed, and that the web fold lines ( 201 . 202 ) to an area side of the blank ( 1 ) are folding fold lines which, when the first wing field ( 31 ) and associated second wing field ( 32 ) produce a restoring force of the corrugated material caused by a resilient expansion force, which corresponds to a clamping force acting on a in the enclosure ( 50 ) set flat edge ( 81 ) is exercised. Blank according to claim 1, characterized in that the leg fields ( 4 ) along the row of web fields ( 2 ) alternately at the wing fields ( 3 ) are arranged. Blank according to claim 2, characterized in that the web fields ( 2 ) along the row have at least substantially the same length. Blank according to claim 2 or 3, characterized in that the thigh fields ( 4 ) along the row have at least substantially the same length. Blank according to one of claims 1 to 4, characterized in that the web fields ( 2 ) and the thigh fields ( 4 ) along the row have at least substantially the same length. Blank according to one of claims 1 to 5, characterized in that the leg fields ( 4 ) by rectangular cut-out fields ( 40 ) are formed. Blank according to one of claims 1 to 6, characterized in that the leg fields ( 4 ) across the line ( 101 ) have a maximum width (B) which is at least twice the width (b) of the web fields (B) 2 ) is. Blank according to one of claims 1 to 7, characterized in that at least at one end of the row of aligned web fields ( 2 ) a corner section ( 7 ) formed by an extension on a ( 32 ) of the wing fields ( 31 . 32 ) formed opposite to the other wing field ( 32 ) is completely cut free, wherein in the corner section ( 7 ) by means of the line ( 101 ) transversely directed fold line ( 701 ) an abutment section ( 72 ) hinged, which forms a stop element in the folded state, of the thigh fields ( 4 ) packaged goods ( 8th ) against displacement to the adjacent end of the row. Blank according to claim 8, characterized in that the abutment portion ( 72 ) on a flat side of the packaged flat edge ( 81 ) to be lying holding section ( 73 ) is articulated. Blank according to claim 9, characterized in that the stop section ( 72 ) with the web field width (b) corresponding dimension (b) and the holding section ( 73 ) in the folded state, an end facing ( 70 ) form. Blank according to one of claims 1 to 10, characterized in that the at least one pair of wing panels ( 31 . 32 ) is designed such that the wing fields ( 31 . 32 ) in the folded state, a spacer element ( 54 ), which are used for spacing the packaged flat edge ( 81 ) against the inner wall ( 91 ) an outer packaging ( 9 ) is adapted to the internal dimensions. Blank according to one of claims 1 to 11, characterized in that the at least one pair of wing panels ( 31 . 32 ) three mutually arranged leg fields ( 41 . 42 . 43 ). Blank according to one of claims 1 to 12, characterized in that to a surface side of the blank ( 1 ) folding fold lines ( 201 . 202 ) of the at least one pair of wing panels ( 31 . 32 ) are arranged with folding resistances, which after the removal of the thigh fields ( 4 ) from the flat blank surface in a blunt-angle position between the wing panels ( 3 ) remain as initial shape for further folding. Blank according to one of claims 1 to 13, characterized in that the corrugated-Zu cut ( 1 ) one to the row line ( 101 ) Transversely, in particular vertically directed shaft.