MX2007015396A - Protective packaging for an article - Google Patents

Abstract

A protective packaging for an article, which protective packaging is formed from a flat limp material which is folded over its length so that two walls (4, 5) which have parallel side edges (3) that rest against one another are formed, which walls form an open slot (7) with the free edges (6) of the material and are connected to one another at their front ends (8) in order to close the packaging, permits simple production and improved handling in that the open slot (7) is formed within a wall (5) and at a distance from the side edges (3), and in that the two sides edges (3) are formed by folding lines.

Description

PROTECTIVE PACKING FOR AN OBJECT The invention relates to a protective packaging for an object, formed with a flat and loose material that is folded along, so that walls are formed having two adjacent parallel lateral edges forming an open slot with the free edges of the material and which are joined together at their front ends to close the packaging. Protective packaging, especially for bulky objects, for example automobile bumpers, has been manufactured for quite some time with Kraft paper, that is to say with a known technology in the manufacture of paper bags. A multilayer Kraft paper is folded in a simple manner once in length so that two equal superimposed walls are formed. This arrangement is closed at the front ends of the formed walls, e.g. ex. sewing the walls at the front ends. In this way a protective packaging is formed which is very easy to make and which has a groove extending along the packaging on a side edge, which can be opened to insert the bumper into the packaging in a similar way to a wrapping that It has been formed. The slot is closed for the subsequent transport, p. ex. by means of an adhesive tape applied on the outside of the walls and covering the groove.

The known protective packaging can be made very easily and inexpensively although it has certain disadvantages for its handling. Open and hold open the slot and insert the very long object, which is generally a length > 1.5 m, requires a lot of attention and care, to securely hold the object inside the packaging before closing the slot with the adhesive tape and the object is prevented from falling out of the packaging. Until that moment, the layout of the packaging is very labile. Since the packaging remains supported on the lateral edge formed by the folding line while the object is being introduced, it is susceptible to overturning, sometimes with the object, as a result of which it may slip out of the packaging and be damaged, eg. ex. scratch The object of the present invention is to provide a protective packaging of the aforementioned type that allows better handling without having to be made in a more complicated and expensive way. To achieve this object, according to the invention a protective packaging is characterized in that the open slot is in a wall, at a certain distance from the side edges and in that both side edges are formed by folding flaps. In the protective packaging of the invention, the material is folded twice in the longitudinal direction, so that both side edges are formed by fold lines. The folding can also be done by forming lateral folds, so that the finished package is in the form of a case. In this case, the two free edges of the materials coincide facing one wall and form there the open slot between the front ends that are joined together to close the package. For this, known joining techniques can be used, such as sewing, gluing, welding, multiple folding, knurling (joining by stamping), stamping, joining by flaps etc. As the open slot is on a wall, this wall is used as the top wall of the package. The slot can be opened on the upper side formed by the upper wall of the packaging, so that the lower wall serves as the bottom of the package and can also rest flat on a base. This results in a firm positioning of the protective packaging while it is being loaded with the object, e.g. ex. a bumper of an automotive. After inserting the object into the packaging, the open slot is closed to a large extent by the prisoner or the shape of the object, so that it is practically impossible for the object to inadvertently slide out of the protective packaging. Then, the groove of the protective packaging can optionally be closed in a known manner. Frequently this is not necessary in internal transport of the company thanks to the construction of protective packaging. In a particularly suitable embodiment of the invention, the open slot is arranged in the middle of the wall. However, it is also possible to arrange the slot outside the center line, ie p. ex. in the right or left third of the packaging. In addition, the open slot preferably extends between the closed ends of the front side, along the entire length of the package, so that prior to loading the protective package with the object no partial closing movements of the formed slot are required. The stability of the groove formed according to the invention and its tendency to close after loading the protective packaging is increased by means of an outer layer of Kraft paper which is folded around at least one inner layer of the free edges forming the groove and It sticks on the inside of the packaging. In this way, the free edges of the Kraft paper that limit the groove obtain a fringe-shaped reinforcement thanks to the folded outer layer that increases the stability of the shape of the free edges and also prevents the material of the free edges from becoming "free". "In an alternative embodiment there is a layer of the inner material folded around an outer layer of the free edges forming the groove and glued to the outer side of the package. It is also possible to shape the groove in such a way that the free edges overlap each other. In this way the packaged object is protected even more in the protective packaging. By folding the protective packaging in the longitudinal direction, two chambers are formed that can be filled separately. In a particular embodiment, divisions can be formed by means of other transverse or longitudinal connections, optionally interrupted, between the joints of the front sides.

In that case, the packaging can be rolled or folded.

Such divisions are useful, p. ex. in packages of fluorescent lamps and the like. Preferably, the package has at least three layers, particularly four layers, of which the outer layer has a printable side and the inner layer forming the inner side of the package can have a smooth side. As a material, p. ex. multilayer kraft paper, plastic films, polyethylene or polypropylene films, co-extruded PE / PP films, air bubble quilted films, non-woven fabrics, e.g. ex. polyethylene or polypropylene or its copolymers or blends, synthetic or non-synthetic fabrics, foams, metal films, composite materials which may have p. ex. a barrier layer, or felts. The handling of the packaging of the invention can be further improved by causing the free edges forming the groove to overlap so that on material so that the groove automatically closes after filling the package with the object. In the following, the invention will be explained in more detail by means of an exemplary embodiment shown in the drawing, in which FIG. 1 is a plan view of a top wall provided with a slot, of a protective packaging. Figure 2 is a cross-section of the protective packaging on the line 11-11 of Figure 1. The protective packaging of the invention is made of multilayer Kraft paper, of which only the outer layer 1 is shown in Figure 2. and an inner layer 2. The layers 1, 2 are folded twice so that the folding lines form lateral edges 3 of a wall 4 (lower) and an upper wall 5. The upper wall 5 coast thus of two partial walls 5a and 5b. In the middle of the upper wall 5, the free edges 6 of the two partial walls 5a and 5b abut and thus form an open slot 7 extending along the entire protective packaging. At the front ends 8 the walls 5, 6 are joined together by means of a seam 9 which is made in a known manner with a cord of thread (not shown). As seen in Figure 2, the edge of the free edges 6 is protected, since in the area of the free edge 6, the outer layer 1 is folded around the inner layer 2 and glued to the inner side of the inner layer 2 on the inner side of the packaging by means of a strip of glue 10, so that the free edge 6 is covered by a line of peeling of the outer layer 1 and forms a reinforcement of the free edges 6 in the form of a fringe that limits the open groove 7 with the strip-shaped surface 10 and the layer layer additions strip-like of the outer layer 1 folded inwards To simplify in figure 2 only one inner layer 2 is shown. An embodiment with several inner layers, particularly three inner layers, in order to ensure sufficient stability of the packaging. The open groove 7, limited by the seams 9, extends along the entire packaging, between the seams 9. Although in the drawing, the groove 7 is shown in the middle of the upper wall 5, naturally as a variant also it can be arranged outside the middle of the wall 5, provided a sufficient distance is guaranteed up to the side edges 3. The minimum distance to the side edges is approximately 1/4 of the width of the wall 5. It is also possible to make the walls 5a and 5b of the wall 5 in an overlapping manner, so that the slot 7 forms, in the closed state, a labyrinth type closure. An overlap of up to 20 cm is possible, ie approximately 1/3 of the width of the wall 5. Thanks to the overlap, the packaging loaded with the object still has sufficient wall material to close the slot 7 and prevent the introduced object to slide out inadvertently. The package is also suitable for an embodiment having a length substantially greater than the width and depth. You can have, p. ex. a length of more than 2 m, preferably of more than 2.5 m and a width of between 0.5 [mu] m and 0.75 m, preferably of 0.6 [mu] m to 0.65 m.

Claims (11)

1. CLAIMS 1. Protective packaging for an object, formed with a flat and loose material that is folded along, so that two walls (5,6) are formed that have two adjacent parallel side edges (3), which form a groove open (7) with the free edges of the material (6) and which are joined together at their front ends (8) to close the packaging, characterized in that the open slot (7) is formed in a wall (5) at a distance of the lateral edges (3) and both lateral edges (3) are formed by fold lines. Protective packaging according to claim 1, characterized in that the parallel lateral edges (3) are folded in the form of lateral folds. Protective packaging according to one of claims 1 or 2, characterized in that the open slot (7) is arranged in the middle or outside the middle of the wall (5). Protective packaging according to one of claims 1 to 3, characterized in that the groove (7) is formed by free edges (6) of the wall (5) that overlap. 5. Protective packaging according to one of claims 1 to 4, characterized in that the free edges (6) overlap. Protective packaging according to one of claims 1 to 5, characterized in that the open slot (7) extends between the closed front ends (8) over the entire length of the packaging. Protective packaging according to one of claims 1 to 6, characterized in that the connection of the front ends is carried out by gluing, sewing or knurling. Protective packaging according to one of claims 1 to 7, characterized in that chambers are formed by means of other transverse or longitudinal crosspieces between the front ends. Protective packaging according to one of claims 1 to 8, characterized in that on the free edges (6) forming the groove (7), an outer layer (1) of the material is folded around at least one inner layer ( 2) and sticks on the inside of the packaging. Protective packaging according to one of claims 1 to 9, characterized in that, on the free edges (6) forming the groove (7), an inner layer (2) of the material is folded around an outer layer (1). ) and sticks on the outside of the packaging. Protective packaging according to one of claims 1 to 10, characterized in that the material is multilayer kraft paper, plastic film, plastic film with air bubbles, non-woven fabric, a fabric, a felt, a film of material compound, a metal film or a plastic foam.