EP1382546A1 - Profile body for protecting articles - Google Patents

Abstract

The shaped body for protection of objects in packaged state comprises a single-piece outer element (11) and an inner element (24) which consists of one or more pieces joined by interlocking shapes or adhesion to the outer element, with at least the inner element made of a foamed plastic.

Description

The invention relates to a profile body for protecting objects with external surfaces and inside surfaces in packaged condition.

Such profile bodies are to be packed on corner edges, surfaces or other shapes Placed on objects to withstand impacts and stacking loads during transport or to compensate for the storage of the packaged items. Because that during transport or edge loads occurring when the objects are stacked lead to damage of the packaged objects, the wall thickness of the profile body must be very high be dimensioned large in order to obtain a corresponding damping and protective effect, which requires a large amount of material. Damaged by impact or load Profile bodies can no longer be used and must be disposed of in their entirety become, which results in an unnecessary environmental impact. On the other hand, there are also fixed ones Profile body to use, but have no damping effect, which makes sensitive Objects in turn can be damaged.

The invention has for its object a profile body of the type described to create, with the reduced material and while ensuring a sufficient protective function to compensate for high shock and pressure loads, whereby the damping behavior is not adversely affected.

This object is achieved by a profile body for protecting objects solved in the packaged state, the profile body having a one-piece outer element Outer surface and inner surface, a single or multi-part inner element, each with an outer surface and inner surface and an at least positive or adhesive connection of the Outer element and the inner element in the inner surface area of the outer element and in Has outer surface area of the inner element, and at least the inner element foamed plastic.

With the profile body according to the invention can be made from the outside with little material compensate for high impact loads without damaging the object cause.

The material of the outer element expediently consists of a foamed one Plastic.

The outer element and the inner element expediently form one with the same angle angled profile element, the angle is preferably 90 °.

If two inner elements are provided, they are mutually along miter surfaces arranged horizontally.

The positive connection between the outer element and the inner element can additionally also be non-positive or frictional.

The material of the outer element is expediently harder than that of the inner element. Advantageously, the outer element consists of a foamed plastic, wood-containing Material, metal, or all-plastic, in particular the foamed plastic of the The outer element is a rigid foam and that of the inner element is an elastic foam. Suitable hard foams are foams made of polyurethane, polysterol, polyethylene, Polypropylene, etc., some with high spatial density. Than have elastic foams themselves acrylonitrile butadiene rubber (NBR), ethylene propylene diene rubber (EPDM), styrene butadiene rubber (SBR), butyl rubber, polyethylene or polypropylene foams low bulk density or other elastomers proved suitable.

The combination of the outer rigid foam and the inner more elastic Foam improves the damping of pressure and shock loads in the edge area, the profile body can be dimensioned in cross-section so that the resulting Volume increase relative to the packaged item remains relatively small. It would however also be a combination for packaging objects that can be cut or punctured conceivable from the inner hard material and outer elastic foam.

A further improvement in the damping effect is obtained if between the Outside element and the inner element free spaces are provided, which are filled with air. Such free spaces can also be in the area of the at least positive connection be provided between the outer member and the inner member. The connection is therefore referred to as at least form-fitting because it has the appropriate elasticity of the inner element can also act non-positively or frictionally.

Advantageously, depressions are provided in the inner surface of the outer element, in which engages the inner element. In one embodiment, the inner element of at least two L-shaped strips are formed which correspond in shape to the strip Recesses are fitted in the inner surface of the outer element. The last can have a rectangular, polygonal, circular or ring-shaped cross-section, in the latter case, a cavity in the ring also helps to improve shock absorption.

In a modified embodiment, the inner element can be arranged at a distance Inserts are formed, the depressions provided in the inner surface of the outer element are fitted, which are designed according to the shape and spacing of the inserts are. The cross-sectional shape of the inserts can be as desired, cuboid are preferred or disc-shaped inserts.

In a further modification, projections for are on the inner surface of the outer element the at least form-fitting engagement with formed on the outer surface of the inner element Provided recesses.

Alternatively, the inner surface of the outer member and the outer surface of the inner member at least interlocking interlocking projections and depressions be, which results in a meshing engagement.

Advantageously, for the mutual engagement of the projections and the depressions the protrusions converging toward their ends and the recesses divergent side faces corresponding to their open ends.

Between the at least form-fitting interlocking projections and depressions free spaces can also be provided.

The resilience of the profile body can be further increased by the fact that in the corner area a thin L-shaped reinforcement strip is inserted between the inner element and the outer element is, for example, made of hard plastic, wood-containing material or metal can exist. By positioning such a reinforcement bar between the The inner element and the outer element can have the property profiles of the foams be very similar, i.e. it can then both the outer element and the inner element consist of an elastic foam without the risk of puncturing in Corner area exists.

The damping properties are advantageous via the number and hardness of the inner elements variably adjustable.

The inner elements can preferably be attached to the outer contours of the part to be packaged to adjust.

Fig. 1

schematisch im Axialschnitt eine erste Ausführungsform eines Profilkörpers nach der Erfindung,

Fig. 2

perspektivisch eine mit dem Profilkörper von Fig. 1 hergestellte Verpackung,

Fig. 3

perspektivisch eine zweite Ausführungsform des Profilkörpers,

Fig. 4

schematisch im Querschnitt eine dritte Ausführungsform des Profilkörpers,

Fig. 5

schematisch im Querschnitt eine vierte Ausführungsform,

Fig. 6

schematisch im Querschnitt eine fünfte Ausführungsform,

Fig. 7

schematisch im Querschnitt eine sechste Ausführungsform,

Fig. 8

schematisch im Querschnitt eine siebte Ausführungsform,

Fig. 9

perspektivisch eine achte Ausführungsform des Profilkörpers,

Fig. 10

schematisch im Querschnitt eine neunte Ausführungsform des Profilkörpers,

Fig. 11

perspektivisch im Querschnitt eine zehnte Ausführungsform des Profilkörpers mit einem zu verpackenden Gegenstand,

Fig. 12

perspektivisch eine elfte Ausführungsform des Profilkörpers

Fig. 13

perspektivisch im Querschnitt eine zwölfte Ausführungsform des Profilkörpers mit einem zu verpackenden Gegenstand,

Fig. 14

perspektivisch eine dreizehnte Ausführungsform des Profilkörpers mit einem zu verpackenden Gegenstand,

Fig. 15

schematisch im Querschnitt eine vierzehnte Ausführungsform,

Fig. 16

perspektivisch eine fünfzehnte Ausführungsform des Profilkörpers und

Fig. 17

perspektivisch eine sechszehnte Ausführungsform des Profilkörpers.

Exemplary embodiments of the invention are explained in more detail with reference to drawings. It shows:

Fig. 1

schematically in axial section a first embodiment of a profile body according to the invention,

Fig. 2

perspective a package produced with the profile body of FIG. 1,

Fig. 3

in perspective a second embodiment of the profile body,

Fig. 4

schematically in cross section a third embodiment of the profile body,

Fig. 5

schematically in cross section a fourth embodiment,

Fig. 6

schematically in cross section a fifth embodiment,

Fig. 7

schematically in cross section a sixth embodiment,

Fig. 8

schematically in cross section a seventh embodiment,

Fig. 9

in perspective an eighth embodiment of the profile body,

Fig. 10

schematically in cross section a ninth embodiment of the profile body,

Fig. 11

in perspective a cross-section of a tenth embodiment of the profile body with an object to be packed,

Fig. 12

in perspective an eleventh embodiment of the profile body

Fig. 13

perspective a cross-section of a twelfth embodiment of the profile body with an object to be packed,

Fig. 14

perspective a thirteenth embodiment of the profile body with an object to be packed,

Fig. 15

schematically in cross section a fourteenth embodiment,

Fig. 16

in perspective a fifteenth embodiment of the profile body and

Fig. 17

in perspective a sixteenth embodiment of the profile body.

The profile body shown in Fig. 1 consists of an L-shaped outer element 11 with two perpendicular to each other outer surfaces 12 and two perpendicular to each other Inner surfaces 13, the respective outer surface 12 and inner surface 13 of the L-shaped Outer element 11 are parallel to each other and to each other in a longitudinal edge bump. The outer element 11 has the thickness D. In the inner surfaces 13 of the outer element 11, a recess 20 with a rectangular cross section is recessed.

In the embodiment of FIG. 1, there is the inner element 14, which has two inner surfaces 16 and two outer surfaces 15 has two strips 24 with a rectangular cross section. The Cross-sectional dimension is provided such that each bar 24 into a recess 20 of the Inner surface 13 can be fitted in a form-fitting manner, the strips 24 with their beveled Touch inner corners to form a miter so that the inner surfaces 16 have an L-shape form. This results in a tension on the miter surfaces even with larger tolerances, which prevents the strips from falling out of the outer element 11. The Bars 24 delimit in the area of the inner corner of the outer element 11 with this one free space 17 which is filled with air.

If in the profile body of Fig. 1, the outer element 11 is made of a foam which is harder than the foam of the strips 24 which form the inner element 14, a shock load acting on the edge is absorbed by the harder foam and already dampened in a load-distributing manner and possibly transferred to the more elastic material of the strips 24, which can deform so that including the free space 17 in the corner area very high damping is achieved, d. H. that acting on the outer member 11 Impact or pressure load only slightly or not at all on the edge of an object comes into effect, with its adjacent surfaces on the inner surfaces 16 of the strips 24 forming the inner element 14 abuts.

The profile bodies can, as shown in FIG. 2, be joined together using reinforcing corners 41 to form a frame which accommodates a cuboid body, such as a refrigerator, with the corners of the cuboid body sitting inside the longitudinal and transverse profile bodies , On the other hand, standard lengths and profiles can be combined using the tongue and groove connections on the front. A connection is also created by continuous, staggered elastic strips.
In the embodiment of FIG. 3, an outer element 11 with an L-shaped cross section is used, which has outer surfaces 12 and inner surfaces 13. In the inner surfaces 13 recesses 20 are recessed in the form of hollow cylinders, in which form-fitting inserts 34 are inserted, which cooperatively form the inner element 14 and, if the inserts 34 have a slightly larger outer diameter than the recesses 20, which extend into the recesses 20 Allow elastic deformation to be used, whereby in addition to the positive connection, a non-positive or frictional connection is also achieved.

By omitting individual inserts 14, different damping and Hardness levels of the interacting spring-elastic properties can be achieved. By the strips can be of different hardness and / or of different lengths 14 also adapt to not straight bodies.

The embodiment shown in FIG. 4 corresponds to that of FIG. 1 with the difference that instead of the strips 24 with a rectangular cross section strips 24 with an annular Cross section are used, the shape of the recesses 20 in the inner surfaces 13 of the outer element 11 form a hollow cylinder segment. In the plane of the bisector the inner corner of the outer element 11, the strips 24 with the annular Cross section on the outer circumference flattened by the preload on the outer diameter, so that falling out is prevented. Between the outer circumference of the strips 24 and the inner corner of the outer member 11 is formed a free space 17 which is filled with air is and just like the concentric cavities 19 in the cylindrical strips 24 for Contribute damping.

5, the L-shaped outer element 11 has on its inner surfaces 13 each have a projection 22 to which a corresponding depression of the outer surface 15 of the L-shaped inner element 14 is assigned. The projections 22 and depressions 21 can Continuous or spaced apart over the entire length of the profile his. In the corner area there is a free one between the outer element 11 and the inner element 14 Room 17 is provided, which is filled with air and contributes to shock absorption.

6 has an L-shaped outer element 11 and an L-shaped inner element 14, that of two perpendicular to each other, along a miter to each other abutting sub-elements is formed. The outer element 11 has an outer surface 12 and an inner surface 13, the inner element 14 an outer surface 15 and an inner surface 16. Im Corner area is between the inner surface 13 of the outer element 11 and the sub-elements a square free space 17 merging into side slots is provided, which is filled with air is filled.

The outer element 11 has on its inner surface 13 projections 22 with intermediate ones Indentations 20. The inner element 14 has 15 projections 23 on its outer side with intermediate ones Indentations 21. The projections 22 and 23 and the indentations 20 and 21 are designed so that they have a positive connection in the form of a toothing can produce, in the embodiment shown in contrast to that full positive engagement of the projections 23 and recesses 20 between the projections 22 and because recesses 21 each have a free space 18 for shock absorption contributes. The storage stability of the sub-elements of the inner element 14 to one another is guaranteed by the mutual prestress in the miter area.

The configuration of the profile body of FIG. 7 essentially corresponds to that of FIG. 6 the difference that the inner element is made in one piece, the outer surfaces in the corner area 15 have a solid element 35 in the corner area on the inner surfaces 13 of the outer element 11 is fully applied, while free spaces 17 are provided in adjacent areas are that support the damping. Because the friction angle on the tangential Points of contact between the outer surface 15 of the inner element 14 and the inner surface 13 of the outer element 11 is smaller than the possible removal angle, here ensures a connection that enables easier training of the profile, what is particularly advantageous for PE profiles, without the profile becoming a positive connection results.

8 essentially corresponds to that of FIG. 7 with the difference that that in the corner area between the inner surface 13 of the outer element 11 and the outer surface 15 of the inner element 14 with the solid element 35 is a thin L-shaped continuous Reinforcement profile 40 made of plastic, cardboard, wood-containing material or metal is used. This reinforcement profile 40 acts very strongly in the edge area not only with regard to the receptacle and damping lateral shocks together with the outer member 11 and the inner member 14, but also vertical with regard to the absorption of pressure loads to the drawing plane of Fig. 8, for example, if several protected by the profile body Objects are stored vertically one above the other. Due to the additional arrangement of the Reinforcing strip 40, it is possible to use the same foam for the outer element 11 how to use for the inner element 14 without striking in the corner area is possible.

Fig. 9 shows in perspective that in the embodiment of Fig. 8 there is a continuous Outer element 11 with a continuous reinforcement strip 40 is sufficient, narrow inner elements 14 only to be spaced from each other and form-fitting on the outer element to hold, which means further material savings. The damping effect can be here as has already been shown in FIG. 3, can be adapted differently. You can also non-rectilinear packaging bodies are also supported by different thicknesses D1, D2 and D3 are used here. In line with the to protective object, the cross-sectional shape of the spaced inner elements can be changed become.

The embodiment shown in FIG. 10 corresponds to that of FIG. 1 with the difference that instead of the strips 24 with a rectangular cross section, strips 24 with a pentagonal cross section with a roof-shaped edge facing away from the outer element 11 come, the shape of the recesses 20 in the inner surfaces 13 of the outer member 11 form a rectangle. Falling out of the inner elements 14 is a positive Connection between the latter and the outer element 11 prevented by friction. The concentric cavities 19 in the pentagonal strips 24 contribute to the further Damping at.

11 to 14 show in perspective a plate-like configuration of the profile body for use in the packaging of flat objects 26 with complicated cross sections.

In the embodiment of FIG. 11, two plate-like outer elements 11 are used, which each have an outer surface 12 and an inner surface 13. In the inner surfaces 13 recesses 20 are designed in the form of rectangular recesses, in the form-fitting Strips 24 and 24 'are inserted, which cooperate with the inner element 14 form. If the strips 24 and 24 'have a slightly larger foot width than the depressions 20 have and are inserted into the recesses 20 with elastic deformation, in addition to the positive connection also achieves a non-positive or frictional connection. Due to different heights, the strips 24, 24 'cannot be straight Adapt the running body, with a connection made via the strips 24 ' the two outer elements 11 a lateral fixation of the object to be packaged 26 is reached. By omitting individual strips 24, different ones can be used Damping and hardness levels can be achieved.

The embodiment shown in FIG. 12 corresponds to that of FIG. 11 with the difference that that instead of the continuous depressions 20 in one direction extending in the inner surface 13 of the outer element 11 further depressions 27 which are perpendicular to the Wells 20 are arranged to be used, which are furthermore with strips 24 'with a rectangular shape Cross-section form a positive fit. Vertically arranged and different high strips 24 and 24 allow a stable attachment of the packaged To achieve objects with a complicated cross-sectional shape.

FIG. 13 shows in perspective a further modification of the embodiment shown in FIG. 11 of the profile body with a continuous flat outer element 11, and with the inner element forming cylindrical inserts 34, 34 '. The damping effect can also as has already been shown in FIG. 3, can be adapted depending on the location. In addition, you can even non-linear objects can be packaged supported by inserts 34, 34 'with different heights are used. By means of the two outer elements 11 inserts 34 'connecting to one another allow the lateral fixation of the reach packing object 26.

The embodiment shown in FIG. 14 is also possible, in which not all of them are different long designed inserts up to the opposite outer element 11 extend and thereby for a lateral fixation of the object to be packaged 26 worries.

15, the L-shaped outer element 11 has on its inner surfaces 13 each have a projection 22 which is formed by folding in its sides and which has a corresponding one Indentation 21 in the outer surface 15 of two rectangular in cross section Last 24 formed inner element 14 is assigned. The projections 22 and depressions 21 can be formed continuously or at intervals from one another over the entire length of the profile his. The strips 24 abut one another on inner surfaces in the manner of a miter. in the The corner area is a free space between the outer element 11 and the inner element 14 17 provided, which is filled with air and contributes to shock absorption. Advantageously, there is the outer element 11 made of hard cardboard, a hard plastic, or metal.

16 shows in perspective a further embodiment of the profile body with a continuous L-shaped outer element 11, on the inner surfaces 13 by an adhesive connection Inner elements 14 in the form of strips 24 with a rectangular cross section are. The combination of the outer hard material and the inner more elastic Foam improves the damping of pressure and shock loads in the edge area, the profile body can be dimensioned in cross-section so that the resulting Volume increase relative to the packaged item remains relatively small.

17 shows in perspective a further modification of the embodiment shown in FIG. 16 of the profile body with an L-shaped outer element 11, the inner element of individual connected by gluing to the inner surface 13 of the outer member 11 cylindrical inserts 34 is formed. The damping effect can also here, as already was shown in Fig. 3, be adjusted depending on the location.

Claims (23)

Profile body to protect objects in the packaged state, the profile body a one-piece outer element (11) with outer surface (12) and inner surface (13), a one-part or multi-part inner element (14, 24, 34) each with outer surface (15) and inner surface (16) and has an at least positive or adhesive connection of the outer element (11) and the inner element (14, 24, 34) in the inner surface area (13) of the outer element (11) and in the outer surface area (15) of the inner element (14, 24, 34), and at least the inner element (14, 24, 34) consists of foamed plastic. Profile body according to claim 1, characterized in that the outer element (11) consists of foamed plastic. Profile body according to claim 1 or 2, characterized in that the outer element (11) and the inner element (14) each form a profile element angled at the same angle. Profile body according to claim 3, characterized in that the angle is 90 °. Profile body according to one of the preceding claims, characterized in that two inner elements (14) are provided which are arranged lying against one another along miter surfaces . Profile body according to one of the preceding claims, characterized in that the positive connection of the outer element (11) with the inner element (14, 24, 34) in the region of the inner surfaces (13) of the outer element (11) and the outer surfaces (15) of the inner element ( 14, 24, 34) is additionally non-positive or frictional. Profile body according to one of the preceding claims, characterized in that the material of the outer element (11) is harder than that of the inner element (14, 24, 34). Profile body according to claim 7, characterized in that the outer element (11) consists of a rigid foam and the inner element (14, 24, 34) consists of an elastic foam. Profile body according to claim 8, characterized in that the rigid foam is a foam made of polyurethane, polystyrene, polypropylene or polyethylene. Profile body according to claim 8 or 9, characterized in that the elastic foam is a foam made of acrylonitrile-butadiene rubber (NBR), made of ethylene-propylene-diene rubber (EPDM), made of styrene-butadiene rubber (SBR), made of butyl rubber, polyethylene or polypropylene foams with low spatial density. Profile body according to one of the preceding claims, characterized in that free spaces (17, 18) are provided between the outer element (11) and the inner element (14, 24, 34). Profile body according to claim 11, characterized in that free spaces (18) are also provided in the area of the at least positive connection between the outer element (11) and the inner element (14). Profile body according to one of the preceding claims, characterized in that for the at least positive connection in the inner surface (13) of the outer element (11) recesses (20) are provided, in which the inner element (14, 24, 34) engages. Profile body according to claim 13, characterized in that the inner element (14) is formed by at least two L-shaped strips (24) which have recesses (20) corresponding to the strip shape in the inner surface (13) of the outer element (11) , Profile body according to claim 14, characterized in that the strips (24) have a rectangular, polygonal, circular or ring-like cross section. Profile body according to claim 13, characterized in that the inner element (14) is formed by spaced inserts (34) which are fitted into recesses (20) provided in the inner surface (13) of the outer element (11), which have the shape and the distance between the inserts (34) are corresponding. Profile body according to one of claims 1 to 12, characterized in that on the inner surface (13) of the outer element (11) projections (22) are provided for the at least positive engagement with recesses (21) formed on the outer surface of the inner element (14). Profile body according to claim 17, characterized in that the free spaces (18) between the at least form-fitting interlocking projections (22, 23) and recesses (20, 21) are provided. Profile body according to one of claims 17 or 18, characterized in that for the mutual engagement of the projections (22, 23) and the depressions (20, 21), the projections (22, 23) converging towards their ends on the side surfaces and the depressions (20 , 21) have corresponding divergent side faces towards their open ends. Profile body according to one of the preceding claims, characterized in that a thin, L-shaped reinforcing strip (40) is inserted in the corner region between the inner element (14) and the outer element (11). Profile body according to claim 20, characterized in that the reinforcing strip (40) consists of hard cardboard, a hard plastic, wood-containing material or metal. Profile body according to one of the preceding claims, characterized in that the damping properties are variably adjustable by the number and hardness of the inner elements (14). Profile body according to one of the preceding claims, characterized in that the inner elements (14) can be adapted to the outer contour of the part (26) to be packaged.

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