DE102018118365B3 - Plug connection element and transport box with plug connection elements - Google Patents

Abstract

A plug connection element for releasably connecting two adjacent wall elements (44, 45), which is formed from a plurality of paper layers (46, 47, 48, 49) glued together, with at least one first U-shaped receptacle (12) for an edge section of the first and / or or second wall element (44, 45), which is formed from a first base leg (16) and an adjoining angled inner leg (17) and an adjoining angled outer leg (18) and which has at least one U-shaped receptacle (12). at least one extending from the base leg (16) extending stop web (29), which is the U-shaped receptacle (12) opposite, characterized in - that the at least one U-shaped receptacle (12) comprises a first paper layer (26) , which forms an inner, outer and base leg (17, 18, 16) of the U-shaped receptacle (12) and the stop web (29) by a second and a third paper layer (47, 48). wherein the second paper layer (47) extends along the stop web (29) and the outer leg (18) and the third paper layer (48) extends along the stop web (29), the base leg (16) and the inner leg (17). extends, or that the stop web (29) forms a portion of a U-shaped profile portion (53) which on an outer side of the base leg (16, 21) of the U-shaped receptacles (12, 14) opposite, so that an H-shaped Profile is formed and the U-shaped profile section (53) comprises a fourth paper layer (49) extending from the stop web (29) via the base leg (16, 21) to the profile inner leg (36) of the profile section (53), wherein the first Paper layer (46) of the U-shaped receptacle (12, 14) and the fourth paper layer (49) of the profile section (53) form a common base leg (16, 21) and wherein the second paper layer (47) along the outer leg (18, 23) of the receptacle (12, 14) and d it extends stop flap (29) and the third paper layer (48) along the inner limb (17, 22) of the receptacle (12, 14) and the profile inner limb (36) of the profile section (53) extends, or that the stop web (29) forming a portion of a U-shaped profile portion (53) provided on an outer side of the base leg (16) and oriented orthogonally to the receptacle (12, 14), and the U-shaped profile portion (53) comprises a fourth paper layer (49) comprising a profile inner leg (36) and a profile outer leg (37) of the profile section (53) and extending from the profile inner leg (36), via the stop web (29), the profile outer leg (37) and a base spine (38) of the fourth paper layer (49) is assigned to the second paper layer (47) in the stop web (29) and a section of the fourth paper layer (49) extending in the profile inner leg (36) is assigned to the first paper layer (46) in the base leg (16, 21), wherein the third paper layer (48) extends along the inner leg (17, 22) of the receptacle (12, 14) and at least partially along the profile inner leg (36) of the profile section (53) and the second paper layer (47) along the outer leg (47). 18, 23) of the receptacle (12, 14), the stop web (29) and the profile outer limb (37) of the profile section (53).

Description

The invention relates to a plug connection element for detachably connecting two adjacent wall elements, in particular for a transport box, and a transport box consisting of a plurality of wall elements, a pallet base and a lid, which are interconnected by such plug connection elements.

From the DE 20 2004 010 560 U1 goes out a connector element, which consists of a base plate on which a U-shaped receptacle is formed, wherein the U-shaped receptacle extends at a right angle. The U-shaped receptacle serves to receive two adjacent wall elements oriented perpendicular to each other. To fix the connector element mounting holes are provided in the base plate to introduce nails or bolts. This connector element is formed of metal or a steel sheet.

From the DE 20 2007 003 048 U1 Furthermore, a connector element for releasably connecting two adjacent wall elements of a transport box is known, which has a U-shaped receptacle which extends over the corner. The inner leg is designed to be longer than the outer leg. Between the inner and outer legs extending transversely to the longitudinal extension of the U-shaped receptacle, a cutting device which penetrates when placing the connector element in an outer edge of the wall element and thus allows in the horizontal direction, a fixation of the wall element to the connector element. This connector element is formed of a plastic material.

From the DE 10 2010 012 221 A a transport box is known. Among other things, this transport box comprises an edge element made of wound or glued paper layers.

From the WO 2014/135520 A are known a pipe joint and a support frame with a pipe joint and a cardboard tube for forming an engagement pipe for a pipe joint.

The invention has for its object to propose a connector element which is usable as a disposable product or is easy to recycle and to provide a transport box, which is used as a disposable product or is easy to recycle.

This object is achieved by a plug connection element for detachably connecting two adjacent wall elements, with at least one U-shaped receptacle for an edge portion of the first and / or second wall element, wherein the at least one U-shaped receptacle by a first base leg and an angled thereto Inner leg and an adjoining angled outer leg is formed and the at least one U-shaped receptacle has at least one extending from the base leg stop web, which is the U-shaped receptacle opposite, solved, the U-shaped receptacle and the stop web of several are formed with each other glued paper layers. Such made of paper connector element can provide environmental benefits in both the production and disposal by this can be made from recycled paper and recycled after use as a single-grade raw material recycled. The fact that the connector element is formed of a plurality of bonded together paper layers, also a high bending stiffness can be achieved, so that the connector element withstands high loads during use. By the connector element is formed of paper, a low weight of the connector element can be achieved. Paper also makes it possible to reduce the unit cost of such a connector element due to a low material price.

It can preferably be provided that each paper layer is formed from a paper layer or from a plurality of paper layers bonded together in a composite. The paper layer may consist of a single layer of paper or of several layers. A paper layer formed from several layers can be formed from a layer-bonded paper layer composite. The thickness of the individual paper layer or the plurality of bonded together paper layers can be configured arbitrarily, so that an adaptation to the required bending stiffness of the connector element is possible.

A first embodiment of the plug connection element provides that the at least one U-shaped receptacle comprises a first paper layer which forms an inner, outer and base legs of the U-shaped receptacle and the stop web is formed by a second and a third paper layer, wherein the second paper layer extends along the stop web and the outer leg and the third paper layer extends along the stop web, the base leg and the inner leg. As a result, the connector element is formed by three paper layers which extend in the respective legs and are glued together in these. Each layer of paper can either consist of a single layer Paper layer or consist of several glued together paper layers. In this way, a layer-glued connector element is formed, which consists entirely of paper.

It is advantageously provided that at least one adhesive bond is formed between the second and third paper layers in the stop web, between the first and third paper layers in the inner leg and in the base leg, and between the first and second paper layers in the outer leg. Characterized in that in each of the legs, an adhesive bond between the respective paper layers is formed, at least four connection areas between the paper layers are provided, by which a resilient design of the connector element is made possible.

According to a preferred development of the plug connection element, it can be provided that the number of paper layers of the first paper layer corresponds to the number of paper layers of the third paper layer and / or the thickness of the first paper layer corresponds to the thickness of the third paper layer. Thereby, the stop web and the outer leg of the connector element can be designed with a same cross-sectional width, so that the respective inner and outer sides of the stop web and the outer leg in a common plane, i. aligned with each other, are arranged. As a result, the wall elements connected by the plug connection element can be arranged without offset relative to one another.

A particularly preferred embodiment of the plug connection element provides that a first and a second U-shaped receptacle are provided, each with a stop web, which are interconnected by a bending joint. The U-shaped receptacles and the respective stop web can be aligned in an initial position to each other and adjustable in their angular position to each other. By such a connector element, both a longitudinal connection element and a corner connecting element can be formed. As a longitudinal connecting element, the first and second U-shaped receptacle can be positioned in a row one behind the other and connected to each other by the bending joint. The two images are at an angle of 180 ° to each other, so aligned, aligned. Likewise, the first and second receptacle can be arranged at an arbitrary angle to each other, in particular at an angle of 90 °, for example, to form a rectangular transport box. Likewise, the images can also be arranged at a different angle to each other to position two adjacent wall elements at a certain angle to each other and releasably connect. This allows, for example, the formation of a hexagonal or octagonal container wall of a transport box.

A further development of the plug connection element provides that the bending joint provided between the U-shaped receptacles is formed by a notch, which is aligned transversely to the longitudinal extent of the receptacles and preferably extends at least partially from the inner leg via the base leg into the outer leg and into the stop web. By this notch, the bending joint is formed in an outer wall of the outer leg and stop ridge. In this case, a running in the outer leg and the stop web pivot axis is formed, which extends perpendicular to the longitudinal extent of the connector element. As a result, the first and second receptacles are pivotable about a vertical axis.

Advantageously, it can be provided that the bending joint is formed at least by a paper layer of the second paper layer, which extends in the first and second outer leg of the U-shaped receptacles and / or in the stop web. By means of this at least one paper layer, the adjacent outer limbs of the first and second receptacles and the bending joint can be formed from at least one common paper layer. As a result, the bending joint and the adjacent outer legs can be integrally formed, whereby a simplified production is made possible. In addition, the bending joint can thereby extend over the entire height of the outer leg and stop ridge. In particular, this at least one paper layer is assigned to the outside of the plug connection element, so that a stable outer corner between the outer legs and the stop web of the first and second U-shaped receptacle is created by the bending joint.

Advantageously, it is provided that the bending joint has at least one reinforcing element, in particular a reinforcing fabric, which covers the bending joint and extends at least partially along the first and second outer leg and / or the stop web. By such a reinforcing element, the connector element can withstand greater loads and in use a higher number of folding or bending cycles without damaging the bending joint. Such a reinforcing fabric may be, for example, a reinforcing fabric. The reinforcing fabric may be applied to an outside of the second paper layer or incorporated into the second paper layer. Also, the reinforcing fabric may lie between the second paper layer and the first and third paper layers adhered thereto.

Particularly preferably it is provided that the notch is wedge-shaped, so that a clearance between the first and second receptacle is formed by the wedge-shaped notch, through which the recordings in a defined angular position, in particular at a 90 ° angle, are limited to each other can be arranged. Due to the wedge-shaped notch, the mutually facing inner legs of the first and second receptacles are formed separately from each other and in particular shortened. As a result, during the transfer of the connector element from a starting position, in which the first and second receptacle are aligned at an angle of 180 ° or aligned, in a 90 ° corner arrangement, in which the inner legs are pivoted toward each other, the pivoting movement is not hindered.

An alternative embodiment of the plug connection element provides that the stop web forms a portion of a U-shaped profile section, which is opposite to an outer side of the base leg of the U-shaped receptacles, so that an H-shaped profile is formed. By such an H-shaped profile two juxtaposed wall elements can be connected to each other, wherein in each of the two U-shaped receiving portions, an edge portion of the wall element is used.

In this H-shaped profile design, it is provided that the U-shaped profile section comprises a fourth paper layer which extends from the stop web over the base leg to the profile inner leg of the profile section. In this case, the first paper layer of the U-shaped receptacle and the fourth paper layer of the profile section form a common base leg. The second paper layer extends along the outer leg of the receptacle and the stop web and the third paper layer along the inner leg of the receptacle and the profile inner leg of the profile section. By the fourth paper layer a reinforcement of the profile section is provided. This is supported by the fact that additionally the second paper layer extends in the stop web and is glued to the fourth paper layer and the third paper layer extends in the profile inner leg and is glued to the fourth paper layer.

In a further alternative embodiment of the plug connection element it is provided that the stop web forms a portion of a U-shaped profile section, which is provided on an outer side of the base leg and is oriented orthogonally to the receptacle. By such a connector element, a connection between two wall elements can be created, which are to be arranged at a right angle to each other. In addition, this connector element allow attachment to pallets by this is attached to an edge region of the pallet base.

The U-shaped profile section oriented orthogonally to the U-shaped receptacle comprises a fourth paper layer which forms a profile inner leg and a profile outer leg of the profile section and extends from the profile inner leg, via the stop web, to the profile outer leg and assigns a base back of the fourth paper layer of the second paper layer in the stop web and a section of the fourth paper layer of the first paper layer in the base leg extending in the profile inner leg is assigned, wherein the third paper layer extends along the inner leg, the receptacle and at least partially along the profile inner leg of the profile section and the second paper layer along the outer leg of the receptacle, the stop web and the profile outer leg of the profile section extends.

The fourth paper layer forms a reinforcement of the profile section, which is additionally supported by the second paper layer which extends in the profile outer leg and is glued to the fourth paper layer and by the third paper layer which extends in the profile inner leg and is glued to the fourth paper layer.

In a preferred embodiment of the connector element is provided that the first U-shaped receptacle and / or the second U-shaped receptacle and / or the stop web and / or the profile section is at least partially surrounded by a moisture-repellent protective layer or have an outer protective layer, preferably with an impregnated or waxed paper layer. By virtue of such a moisture-repellent protective layer, the plug-in connection element formed of paper can withstand a certain amount of external moisture exposure. A softening of the paper can be prevented or greatly delayed, so that the functionality of the connector element is not affected.

In a preferred development of the plug connection element it can be provided that at least one adhesive element is provided on at least one inner wall section of the U-shaped receptacle and / or on a stop face of the stop web and / or on at least one inner wall section of the U-shaped profile section, which is in the form of double-sided adhesive tape or double-sided adhesive strip and is covered with a removable protective layer, and preferably the protective layer is a peel tab for detaching the protective layer from the adhesive element after insertion of the wall element into the receptacle and / or or the profile section and / or after arranging the wall element to the stop web, and forms an adhesive bond between the wall element and at least one of the inner wall sections or the stop surface. By such an adhesive element, the plug connection element and the wall element used in the U-shaped receptacle can be fixed to each other. By covering the adhesive element designed as a double-sided adhesive tape with a protective layer, the wall element can be freely slidably inserted into the U-shaped receptacle before an adhesive bond is formed. The pull tab allows detachment of the protective layer from the adhesive element after insertion of the wall element in the U-shaped receptacle.

An alternative embodiment of the adhesive element provides that at least one adhesive element is provided on at least one inner wall section of the receptacle and / or on a stop surface of the stop web and / or on at least one inner wall section of the U-shaped profile section, which is designed as an adhesive cartridge with a liquid adhesive wherein, by inserting the wall element into the receptacle or profile section or arranging the wall element towards the stop web, the liquid adhesive exits the adhesive cartridge and forms an adhesive bond between the wall element and at least one of the inner wall sections or the abutment surface. Such an adhesive cartridge allows the formation of an adhesive bond between the wall element and the connector element without the need for another handle. For this purpose, the adhesive cartridge allows the formation of an adhesive bond by the adhesive cartridge is activated by the insertion of the wall element in the U-shaped receptacle and thereby exiting the liquid adhesive. In this case, the liquid adhesive may be a fast-curing adhesive. After curing of the adhesive, a firm connection between the wall element and the plug connection element is formed.

A further alternative embodiment of the adhesive element provides that the adhesive element is formed as a bolt-shaped adhesive cartridge with a liquid adhesive in at least one through hole in the inner and / or outer leg of the recording, in profile inside and / or profile outer leg of the profile section and / or can be used in the stop bar and the liquid adhesive from the adhesive cartridge between the wall element and the inner wall portion or between the wall element and the stop surface can be fed. Such a bolt-shaped adhesive cartridge can be used if necessary, provided that an adhesive bond between the wall element and the connector element is to be formed.

Advantageously, it can be provided that the bolt-shaped adhesive cartridge has a fixing mandrel which can be transferred from a starting position into a fixing position in which the fixing mandrel is introduced into the wall element and fixes the adhesive cartridge to the wall element. This fixing mandrel allows a fixation of the wall element to the connector element before the liquid adhesive has cured. In addition, such a mandrel may break the adhesive cartridge at a location associated with the wall member so that the liquid adhesive may exit.

The problem underlying the invention is further solved by a transport box with a pallet base, with a plurality of wall elements and a lid, in which a plug connection element according to one of the above-described embodiments is arranged at upper and lower corner regions of two adjacent wall elements. Due to the clamping arrangement of the connector elements due to the inner and outer leg on the wall elements, a transport box can be created, which can be constructed without tools and disassembled again.

At least the wall elements are preferably made of paper, cardboard or cardboard. In particular, the entire transport crate, i. the pallet base, the wall elements and the lid, made of paper, cardboard or cardboard. The global exchange of goods often does not allow or justify any time-consuming and costly return transport of the transport crates used for transporting goods. For this reason, in addition to a cost-effective production and the reduction of the dead weight of such transport crates, a simple disposal or even a recycling of the material used for the transport crate comes into focus. All parts of the packaging can also be reusable. This applies to both the connector elements as well as the pallet base, the wall elements and the lid. In addition, the construction time can be significantly reduced.

• 1 eine perspektivische Ansicht auf ein erfindungsgemäßes Steckverbindungselement,
• 2 eine Schnittansicht des Steckverbindungselementes gemäß 1 mit schematisch dargestellten Papierschichten,
• 3 eine Schnittansicht einer alternativen Ausführungsform des Steckverbindungselementes mit schematisch dargestellten Papierschichten,
• 4 eine Schnittansicht einer weiteren alternativen Ausführungsform des Steckverbindungselementes mit schematisch dargestellten Papierschichten,
• 5 eine perspektivische Ansicht auf eine weitere alternative Ausführungsform des Steckverbindungselementes gemäß 1 mit einem Biegegelenk,
• 6 eine Draufsicht auf das Steckverbindungselement gemäß 5,
• 7 eine perspektivische Ansicht von hinten auf das Steckverbindungselement gemäß 5,
• 8 eine perspektivische Ansicht auf das Steckverbindungselement gemäß 5 als Eckwinkel,
• 9 eine Schnittansicht des Steckverbindungselementes gemäß 1 mit einem Haftelement,
• 10 eine Schnittansicht des Steckverbindungselementes gemäß 1 mit einem eingeklebten Wandelement,
• 11 eine Schnittansicht des Steckverbindungselementes gemäß 1 mit einer alternativen Ausführungsform eines Haftelements,
• 12 eine Schnittansicht des Steckverbindungselementes gemäß 1 mit einer weiteren alternativen Ausführungsform eines Haftelements,
• 13 eine schematische Detailansicht des Haftelements gemäß 12 und
• 14 eine perspektivische Ansicht auf eine Transportkiste mit Steckverbindungselementen gemäß der 1 und 5 bis 8.

The invention and further advantageous embodiments and developments thereof are described in more detail below with reference to the examples shown in the drawings and explained. The features to be taken from the description and the drawings can be applied individually according to the invention individually or in combination in any combination. Show it:

• 1 a perspective view of an inventive connector element,
• 2 a sectional view of the connector element according to 1 with schematically illustrated paper layers,
• 3 a sectional view of an alternative embodiment of the connector element with schematically illustrated paper layers,
• 4 a sectional view of another alternative embodiment of the connector element with schematically illustrated paper layers,
• 5 a perspective view of a further alternative embodiment of the connector element according to 1 with a bending joint,
• 6 a plan view of the connector element according to 5 .
• 7 a perspective view from behind the connector element according to 5 .
• 8th a perspective view of the connector according to 5 as a corner angle,
• 9 a sectional view of the connector element according to 1 with an adhesive element,
• 10 a sectional view of the connector element according to 1 with a glued wall element,
• 11 a sectional view of the connector element according to 1 with an alternative embodiment of an adhesive element,
• 12 a sectional view of the connector element according to 1 with a further alternative embodiment of an adhesive element,
• 13 a schematic detail view of the adhesive element according to 12 and
• 14 a perspective view of a transport box with connector elements according to the 1 and 5 to 8th ,

In 1 is a perspective view on an outer side of a first embodiment of a connector element 11 shown. This connector element 11 includes a recording 12 , which is U-shaped. This U-shaped recording 12 is intended to be an edge portion of a wall element 44 as in the example 2 to 4 is shown. This includes the first recording 12 a first base leg 16 , angled at the inner leg 17 and an outer thigh 18 connect. In the embodiment according to 1 is the inner thigh 17 shorter than the outer leg 18 , Alternatively, the inner and outer thighs 17 . 18 also be the same length or the inner leg 17 longer than the outer thigh 18 ,

In the plane of the outer thigh 18 is a stop bridge 29 educated. This stop bar 29 extends opposite the base leg 16 in the opposite direction to the outer leg 18 , The stop bridge 29 serves for lateral fixation of the connector element 11 on a floor and / or for lateral fixation of one on the base leg 16 of the connector element 11 placed covers 43 as in the 2 and 14 is shown, or another to the stop bar 29 positioned wall element 45 ,

2 shows a sectional view of the connector element 11 according to 1 , This illustration illustrates how the connector element 11 with the U-shaped receptacle 12 on the edge portion of a first wall element 44 is attached. A second wall element 45 is as a lid 43 on the base leg 16 launched. The stop bridge 29 engages on an end face of the second wall element 45 and prevents slipping of the lid 43 ,

If a wall element 44 . 45 is formed of two plate halves or two wall elements 44 . 45 can be arranged side by side, they can through the connector element 11 be aligned as a longitudinal connection element and aligned with each other and positioned.

The sectional view illustrates that the connector element 11 from several layers of paper 46 . 47 . 48 is trained. The U-shaped recording 12 as well as the stop bar 29 consist of a first paper layer 46 , a second layer of paper 47 and a third paper layer 48 , where the individual paper layers 46 . 47 . 48 glued together. Each of the paper layers 46 . 47 . 48 can be from a single paper layer 26 consist. Likewise, each of the paper layers 46 . 47 . 48 from several individual paper layers 26 be formed, with the individual paper layers 26 are glued together to form a composite. It can be any number and / or thickness of paper layers 26 be provided, whereby the stability of the connector element 11 is adaptable to the intended use. In the illustrated embodiment, each paper layer exists 46 . 47 . 48 from three separate paper layers 26 ,

It can also be provided that the individual paper layers 46 . 47 . 48 from a different number of paper layers 26 are formed. In particular, however, it is provided that the first paper layer 46 and the third paper layer 48 from an equal number of paper layers 26 are formed. This allows the stop bar 29 as well as the outer leg 18 be formed with a same cross-sectional width. This is independent of the number of paper layers 26 through which the second paper layer 47 is formed. This may cause an outer edge of the lid 43 and an outside of the wall element 44 . 45 be aligned with each other.

The first paper layer 46 forms the inner, outer and base legs 17 . 18 . 16 the U-shaped recording 12 and extends along an inner wall portion 27 the inner, outer and base legs 17 . 18 . 16 the U-shaped recording 12 , The second paper layer 47 extends in the outer leg 18 the U-shaped recording 12 , In particular, the second paper layer runs 47 adjacent to the first paper layer 46 in the outer thigh 18 wherein the first and second paper layers 46 . 47 in the area of the outer thigh 18 glued together. The third paper layer 48 extends in the inner and base legs 17 . 16 the U-shaped recording 12 , In particular, runs the third paper layer 48 adjacent to the first paper layer 46 , wherein the first and the third paper layer 46 . 48 in the area of the inner and base leg 17 . 16 glued together.

The second and third layers of paper 47 . 48 extend from the outer thigh 18 or from the inner and base legs 17 . 16 also together in the stop bar 29 , Here are the second and third layers of paper 47 . 48 in particular arranged adjacent to one another and in the region of the stop web 29 glued together. By the paper layers bonded in this way 46 . 47 . 48 is an H-shaped profile cross-section of the connector element 11 formed by the between the paper layers 46 . 47 . 48 intended bonding in the inner, outer and base legs 17 . 18 . 16 as well as in the stop bar 29 a rigid form of the connector element 11 is reached. In particular, a water-based adhesive, ie a solvent-free adhesive, can be used as the adhesive.

3 shows an alternative embodiment of a connector element 11 to 2 , In this connector element 11 is a U-shaped profile section 53 opposite to the U-shaped receptacle 12 aligned and serves to receive the edge portion of the second wall element 45 like this in 14 is shown. The profile section 53 is through the stop bridge 29 and an adjacent profile inner leg 36 formed, extending from the base leg 16 opposite the inner thigh 17 extends out. As a result, an H-shaped profile cross section of the connector element 11 educated.

The U-shaped profile section 53 has a fourth paper layer 49 on. This fourth paper layer 49 extends from the stop bridge 29 over the base leg 16 to the profile inside leg 36 of the profile section 53 , The U-shaped fourth paper layer 49 as well as the likewise U-shaped extending first paper layer 46 form a common base leg 16 this connector element 11 ,

The second paper layer 47 is in the area of the outer thigh 18 with the first paper layer 46 and in the stop bridge 29 with the fourth paper layer 49 bonded. The third paper layer 48 is in the inner thigh 17 with the first paper layer 46 and in the profile leg 36 with the fourth paper layer 49 bonded. As a result, a high rigidity can be achieved.

4 shows a further alternative embodiment of the connector element 11 in which a U-shaped profile section 53 on the outside of the base leg 16 turned 90 ° to the U-shaped recording 12 is aligned. The U-shaped profile section 53 is by a profile inner leg 36 and a profile outer leg 37 educated. The profile inner thigh 36 is perpendicular to the inner thigh 17 formed and extends in the extension of the base leg 16 , The profile outer leg 37 closes at right angles at the end of the stop bar 29 on, with the profile outer leg 37 and the profile inner thigh 36 oriented in the same direction.

The U-shaped profile section 53 includes a fourth layer of paper 49 extending from the profile inner thigh 36 to the profile outer thigh 37 extends. This forms the U-shaped running fourth paper layer 49 between the profile inner leg 36 and profile outer thighs 37 a base back 38 , which the stop bar 29 assigned. In the stop bridge 29 are the fourth paper layer 49 and the second paper layer 47 glued together. In the base leg 16 are the first paper layer 46 and the fourth paper layer 49 glued together.

The third paper layer 48 extends along the inner leg 17 the U-shaped recording 12 and the profile inner leg 36 of the profile section 53 , In the inner thigh 17 is the third paper layer 48 with the first paper layer 46 glued and in the profile inner thigh 36 with the fourth paper layer 49 , The second paper layer 47 extends along the outer leg 18 the recording 12 and the stop bar 29 and the profile outer leg 37 of the profile section 53 and is in the outer thigh 18 with the first paper layer 46 and in the stop bridge 29 as well as in the profile outer leg 37 with the fourth paper layer 49 bonded.

In the in the 2 to 4 described embodiments of the connector element 11 can be additionally provided that between the paper layers 46 . 47 . 48 . 49 or between paper layers 26 the paper layers 46 . 47 . 48 . 49 one or more stiffening layers, not shown, are provided, with the paper layers 46 . 47 . 48 . 49 or the paper layers 26 are glued.

The 5 to 8th show a further alternative embodiment of a connector element 11 to 1 and 2 , In this connector 11 is based on the embodiment in 1 a flexure joint 25 brought in.

The first U-shaped recording 12 and the second U-shaped receptacle 14 are through the flexure joint 25 connected with each other. This flexure joint 25 allows the first and second recording 12 . 14 aligned with each other or at an angle of 180 ° to each other or the two shots 12 . 14 align with each other in an angular position. The bending joint is preferred 25 between the outer thigh 18 the first shot 12 and the outer thigh 23 the second shot 14 provided so that the first and second recording 12 . 14 around a bend along the bend 25 extending axis is pivotable. Because the base legs 16 . 21 are aligned horizontally, is the pivot axis of the bending joint 25 aligned perpendicularly so that the first and second shot 12 . 14 are pivotable about a vertical axis. In particular, an orientation of the first and second recording 12 . 14 in a 90 ° arrangement as a corner joint possible, as in 8th is shown, which will be discussed in more detail below.

The bending joint 25 is by a wedge-shaped notch 28 formed, which is vertical to the longitudinal extension of the connector element 11 is aligned and from the inner thigh 17 . 22 towards the outer thigh 18 . 23 is introduced. In particular, the wedge-shaped notch 28 in the inner thighs 17 . 22 , the base leg 16 . 21 and at least partially in the outer thigh 18 . 23 and the stop bar 29 brought in.

To form the bending joint 25 remains after insertion of the wedge-shaped notch 28 at least one paper layer 26 the second paper layer 47 as a continuous layer or layer, extending along the outer leg 18 . 23 and stop bridge 29 extends. It can also be provided that the bending joint 25 from the second paper layer 47 and at least one more paper layer 26 the first paper layer 46 and the third paper layer 48 is formed or even completely from the second and first paper layer 47 . 46 ,

To the stability of the bending joint 25 In addition, one or more reinforcing elements can be added 19 be provided. Such a reinforcing element 19 may be a fabric of plastic and / or natural fibers. For example, a reinforcing fabric is suitable. The reinforcing element 19 can be either inside the outer thigh 18 . 23 and / or stop bar 29 extend or on the outside of the outer leg 18 . 23 and / or stop web 29 be arranged, in particular glued, be like this 6 and 7 represent. The reinforcing element 19 can both along the entire longitudinal extent of the connector element 11 be provided or only partially on the bending joint 25 extend.

By the wedge-shaped notch 28 are the inner thighs 17 . 22 in the direction of the bending joint 25 pointing shortened trained. As a result, a free space is formed, which is the assumption of an angular position between the first and second recording 12 . 14 allows. In this case, the adjacent end faces of the inner leg 17 . 22 and base legs 16 . 21 Stop surfaces that abut each other in the angular position. In particular, this is an alignment of the images 12 . 14 provided in a defined 90 ° angle, as in 8th is shown.

The first and second recording 12 . 14 as well as the stop bar 29 and / or the profile section 53 are at least partially with a moisture-repellent or water-repellent protective layer 31 surround. This protective layer 31 consists of an impregnated or waxed paper layer, which prevents or delays softening of the paper in the event of external moisture.

For additional fixing and / or securing the plug connection element 11 to the wall elements 44 . 45 can through holes 74 be provided, which is the introduction of adhesive cartridges 52 allow for an adhesive bond between the connector element 11 and the wall elements 44 . 45 to enable. These through holes 74 are in 12 shown and can be attached to the inner thighs 17 . 22 and / or outer thighs 18 . 23 , the base thighs 16 . 21 and / or the stop webs 29 be provided.

The 9 and 10 show the U-shaped recording 12 . 14 in a sectional view with a on the inner wall portion 27 of the outer thigh 18 . 23 provided adhesive element 32 , The adhesive element 32 allows the formation of an adhesive bond between the connector element 11 and in the U-shaped receptacle 12 . 14 inserted wall element 44 . 45 , The adhesive element 32 is as an adhesive strip 51 , in particular a double-sided adhesive tape or a double-sided adhesive strip, provided and at least extends flatly in sections on the inner wall section 27 , The adhesive element 32 can also on the inner wall section 27 of the inner thigh 17 or base leg 16 or on a stop surface 39 of the stop bar 29 be provided.

The adhesive strip 51 is with a removable protective layer 33 provided so that the wall element 44 freely sliding into the U-shaped receptacle 12 . 14 can be used as long as the tape 51 with the protective layer 33 is covered. At the protective layer 33 is a pull tab 34 provided, which is a peeling off of the protective layer 33 from the tape 51 allows. This pull tab 34 is looped from the U-shaped receptacle 12 . 14 brought out, like this in 9 is shown. This is a detachment of the protective layer 33 after insertion of the wall element 44 in the U-shaped receptacle 12 . 14 allows.

11 shows a further alternative embodiment of the adhesive element 32 in the form of an adhesive cartridge 52 , This adhesive cartridge 52 is as one with liquid adhesive 56 filled reservoir formed on the inner wall portion 27 attached, for example, is glued. The adhesive cartridge 52 is due to the insertion of the wall element 44 . 45 in the U-shaped receptacle 12 . 14 damaged, so the liquid adhesive 56 from the adhesive cartridge 52 exit. For this purpose, the adhesive cartridge 52 be formed thin-walled accordingly. Likewise, the adhesive cartridge 52 have a predetermined breaking point by the insertion of the wall element 44 . 45 is damaged, so that leakage of the liquid adhesive is possible. The adhesive cartridge 52 For example, it is made of a plastic.

The 12 and 13 show a further alternative embodiment of an adhesive cartridge 73 , This adhesive cartridge 73 is designed bolt-shaped and is in the through hole 74 used in the outer thigh 18 . 23 and / or in the inner thigh 17 . 22 and / or in the stop bridge 29 can be provided. There can be several through holes 74 for several bolt-shaped adhesive cartridges 73 in the thighs 17 . 18 . 22 . 23 and / or the stop bar 29 be provided. The bolt-shaped adhesive cartridge 73 also contains a liquid adhesive 56 , which after insertion of the adhesive cartridge 73 into the through hole 74 between the wall element 44 . 45 and the inner wall portion 27 the U-shaped recording 12 . 14 is fed to by curing the adhesive 56 to form the adhesive bond.

As in the detail view according to 13 shown is the bolt-shaped adhesive cartridge 73 through a cartridge head 57 formed, to which a cylindrical cartridge body 58 followed. At the cartridge head 57 opposite side of the cartridge body 58 is an exit opening 59 for the adhesive 56 intended. This outlet 59 is through a cover 61 closed, so that the liquid adhesive 56 can not escape. From the cartridge head 57 extends a fixing mandrel 62 towards the outlet 59 , Will the adhesive cartridge 73 into the through hole 74 used and activated, ie there is a force in the direction of insertion on the cartridge head 57 exerted, penetrates the fixing mandrel 62 the cover 61 so that the liquid adhesive 56 from the adhesive cartridge 73 exit and between the wall element 44 . 45 and the inner wall portion 27 or the stop surface 39 is supplied.

The fixing pin 62 can barb 63 so that the fixing mandrel 62 by activating the adhesive cartridge 73 at least partially in the wall element 44 . 45 penetrates. As long as the liquid adhesive 56 is not fully cured to form the adhesive bond, this can be a fixation of the wall element 44 . 45 in the U-shaped recording 12 . 14 be achieved.

14 shows a perspective view of a transport box 42 , This transport box 42 consists of a pallet floor 41 , several wall elements 44 . 45 and the lid 43 , which via plug connection elements 11 releasably and rigidly connected to each other. The connector elements 11 are as corner joints according to the 4 to 8th educated. To build the transport box 42 for example, on the wall element 45 in two lower corners 75 . 76 each a connector element 11 applied and subsequently on the pallet floor 41 positioned. In the corner area 75 becomes the wall element 44 also on the connector element 11 applied, so that subsequently two 90 ° to each other arranged wall elements 44 . 45 on the pallet floor 41 can be set up. After positioning the wall elements 44 . 45 each other can already be a plug connection element in the upper corner 11 for the safe arrangement of the two wall elements 44 . 45 done to each other. Subsequently, the transport box 42 be loaded. Preferably, all other wall elements are applied analogously to a closed circumferential container wall of the transport box 42 to build. Subsequently, the upper connector elements 11 be applied. Subsequently, the lid 43 applied, this by the stop webs 29 is held in position. Last, the pallet floor 41 , the wall elements 44 . 45 and the lid 43 be fixed by bands to each other.

If a container wall of the transport box 42 by two or more juxtaposed wall elements 44 can be formed in the joint between the two wall elements 44 a connector element 11 according to 3 be positioned. Likewise, the two wall elements 44 only with an upper and lower connector element 11 according to 1 or the 5 and 6 be connected or additionally a connector element 11 according to 3 include.

The transport box 42 preferably consists of paper, cardboard or cardboard. Alternatively, in addition to the connector elements 11 only the wall elements 44 . 45 and the lid 43 be formed of paper, cardboard or cardboard and the pallet base 41 made of wood or plastic.

Claims (19)

A plug connection element for releasably connecting two adjacent wall elements (44, 45), which is formed from a plurality of paper layers (46, 47, 48, 49) glued together, with at least one first U-shaped receptacle (12) for an edge section of the first and / or or second wall element (44, 45), which is formed from a first base leg (16) and an adjoining angled inner leg (17) and an adjoining angled outer leg (18) and which has at least one U-shaped receptacle (12). at least one extending from the base leg (16) extending stop web (29), which is the U-shaped receptacle (12) opposite, characterized in - that the at least one U-shaped receptacle (12) comprises a first paper layer (26) comprising an inner, outer and base leg (17, 18, 16) of the U-shaped receptacle (12) and the stop web (29) by a second and a third paper layer (47, 48 ), wherein the second paper layer (47) extends along the stop web (29) and the outer leg (18) and the third paper layer (48) along the stop web (29), the base leg (16) and the inner leg (17 ), or - that the abutment web (29) forms a portion of a U-shaped profile section (53), which on an outer side of the base leg (16, 21) of the U-shaped receptacles (12, 14) opposite, so that a H shaped profile is formed and the U-shaped profile section (53) comprises a fourth paper layer (49) extending from the stop web (29) via the base leg (16, 21) to the profile inner leg (36) of the profile section (53), wherein the the first paper layer (46) of the U-shaped receptacle (12, 14) and the fourth paper layer (49) of the profile section (53) form a common base leg (16, 21) and wherein the second paper layer (47) extends along the outer leg (18 , 23) of the receptacle (12, 14) and un d of the stop web (29) extends and the third paper layer (48) along the inner leg (17, 22) of the receptacle (12, 14) and the profile inner leg (36) of the profile section (53) extends, or - that the stop web (29 ) forms a portion of a U-shaped profile section (53) provided on an outer side of the base leg (16) and oriented orthogonally to the receptacle (12, 14), and the U-shaped profile section (53) comprises a fourth paper layer (49 ) which forms a profile inner leg (36) and a profile outer leg (37) of the profile section (53) and extends from the profile inner leg (36), via the stop web (29), to the profile outer leg (37) and a base back (38) of the fourth Paper layer (49) of the second paper layer (47) in the stop web (29) is assigned and assigned to the profile inner leg (36) extending portion of the fourth paper layer (49) of the first paper layer (46) in the base leg (16, 21) i St, wherein the third paper layer (48) along the inner leg (17, 22) of the receptacle (12, 14) and at least partially along the profile inner leg (36) of the profile section (53) extends and the second paper layer (47) along the Outer leg (18, 23) of the receptacle (12, 14), the stop web (29) and the outer profile leg (37) of the profile section (53) extends. Plug connector after Claim 1 , characterized in that each paper layer (46, 47, 48, 49) is formed from a paper layer (26) or from a plurality of paper layers (26) glued together in a composite. Plug connection element according to one of the preceding claims, characterized in that at least one adhesive bond between the second and third paper layer (47, 48) in the stop web (29), between the first and third paper layer (46, 48) in the inner and in the base leg (17 , 16) and between the first and second paper layers (46, 47) in the outer leg (18). Plug connection element according to one of the preceding claims, characterized in that the number of paper layers (26) of the first paper layer (46) corresponds to the number of paper layers (26) of the third paper layer (48) and / or the thickness of the first paper layer (46) Thickness of the third paper layer (48) corresponds. Plug connection element according to one of the preceding claims, characterized in that a first and a second U-shaped receptacle (12, 14) each having a stop web (29) are provided, which are connected by a bending joint (25), so that the U- shaped receptacles (12, 14) in a starting position in alignment are aligned with each other and are adjustable in their angular position to each other. Plug connection element according to claim 65, characterized in that between the U-shaped receptacles (12, 14) provided for bending joint (25) by a notch (28) is formed, which is aligned transversely to the longitudinal extent of the receptacles (12, 14). Plug connector after Claim 6 , characterized in that the notch extends from the inner leg (17, 22) via the base leg (16, 21) at least partially in the outer leg (18, 23) and in the stop web (29). Plug connector after Claim 5 to 7 , characterized in that the bending joint (25) is formed at least by a paper layer of the second paper layer (47) in the first and second outer leg (18, 23) of the U-shaped receptacles (12, 14) and / or in the stop web (29) extends. Plug connection element according to one of Claims 5 to 8th , characterized in that the bending joint (25) has at least one reinforcing element (19) which extends at least partially along the first and second outer leg (18, 23) and / or the stop web (29). Plug connection element according to one of Claims 5 to 9 , characterized in that the notch (28) is wedge-shaped, so that by the wedge-shaped notch (28) a clearance between the first and second receptacle (12, 14) is formed, through which the receptacles (12, 14) in a defined Angular position limited to each other can be arranged. Plug connector after Claim 10 , characterized in that the wedge-shaped notch (28) forms a free space between the first and second receptacle (12, 14) through which the receptacles (12, 14) can be arranged at a 90 ° angle to each other. Plug connection element according to one of the preceding claims, characterized in that the first receptacle (12) and / or the second receptacle (14) and / or the stop web (29) and / or the profile section (53) at least partially with a moisture and / or or water-repellent protective layer (31) is surrounded. Plug connector after Claim 12 , characterized in that the protective layer (31) is an impregnated or waxed paper layer. Plug connection element according to one of the preceding claims, characterized in that on at least one inner wall portion (27) of the U-shaped receptacle (12, 14) and / or on a stop surface (39) of the stop web (29) and / or on at least one inner wall portion of the U-shaped profile portion (53) at least one adhesive element (32) is provided, which is formed as a double-sided adhesive strip (51) or double-sided adhesive strip and covered with a removable protective layer (33), and the protective layer (33) a Abziehlasche (34) for Detaching the protective layer (33) from the adhesive element (32) after inserting the wall element (44, 45) into the receptacle (12, 14) and / or the profile section (53) and / or after arranging the wall element (44, 45) to the stop web (29), and an adhesive bond between the wall element (44, 45) and at least one of the inner wall sections (27) or the stop surface (39). Plug connection element according to one of Claims 1 to 13 , characterized in that at least one inner wall portion (27) of the receptacle (12, 14) and / or on a stop surface (39) of the stop web (29) and / or on at least one inner wall portion of the U-shaped profile section (53) at least one Adhesive element (32) is provided which is formed as an adhesive cartridge (52) with a liquid adhesive (56), wherein the insertion of the wall element (44, 45) in the receptacle (12, 14) or the profile section (53) or Arranging the wall element (44, 45) for the stop web (29) the liquid adhesive (56) emerges from the adhesive cartridge (52), and an adhesive bond between the wall element (44, 45) and at least one of the inner wall sections (27) or the stop surface (27) 39). Plug connection element according to one of Claims 1 to 13 , characterized in that the adhesive element (32) as a bolt-shaped adhesive cartridge (73) with a liquid adhesive (56) is formed in at least one through hole (74) in the inner and / or outer leg (17, 22, 18, 23 ) of the receptacle (12, 14), in the profile inner and / or outer profile leg (36, 37) of the profile section (53) and / or in the stop web (29) is insertable and the liquid adhesive (56) from the adhesive cartridge (73) between the wall element (44, 45) and the inner wall section (27) or between the wall element (44, 45) and the stop surface (39) can be fed. Plug connector after Claim 16 , characterized in that the bolt-shaped adhesive cartridge (73) has a fixing mandrel (62) which can be transferred from a starting position into a fixing position, in which the fixing mandrel (62) in the wall element (44, 45) is introduced and the Adhesive cartridge (73) fixed to the wall element (44, 45). Transport box with a pallet base (41), with a plurality of wall elements (44, 45) and a lid (43), wherein the wall elements (44, 45) perpendicular to the pallet base (41) and cover (43) are aligned, characterized in that at the upper and lower corner regions of two adjacent wall elements (44, 45) a plug connection element (11) according to one of Claims 1 to 17 for releasably positioning the wall elements (44, 45) is provided to each other. Transport box after Claim 18 , characterized in that at least the wall elements (44, 45), the pallet base (41) and / or the lid (43) made of paper, cardboard or cardboard are formed.

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