SE509474C2 - Pallet or pallet smith and way to manufacture such pallet - Google Patents

Abstract

A pallet leg (1) and a pallet respectively comprises and is provided with respectively as legs a punched and grooved and/or perforated blank, made of corrugated paper-board having a transversal wave direction. The blank is folded up in a supporting and bracing way. According to the invention brace legs (9) extend from the against each other abutting areas of the top surfaces (7) of a leg (1), obliquely downwards and into the corner area between a base surface (2) and a wall (5), in a hypotenuse-like, a pressure arch-forming way, to which brace legs in a flat position against the inner side of the flanks (5) with an inherent elasticity, due to the structural design, abutting support legs are connected. In order to maintain the folded-up application condition of the leg and the fixing of said pressure arch the top surfaces (7) are designed to be fastened to the bottom surface of an upper pallet tray (26), which jointly with an arbitrary number of legs constitutes a complete pallet (25).

Description

15 20 25 30 35 5o9 474 2 evenness. Last but not least, there is no advantageous, quick and easy mounting option for the runners or pallets and the shape of the openings cannot be guaranteed by simple means and extra reinforcements are created within the area of the openings.

From DE-A-2 215 204 a pallet manufactured by folding a plurality of corrugated board blanks is previously known. The pallet sides that have a co-function have, within a horizontal plane, a flap section that can be pivoted to the side through an inserted truck fork. These do not affect the pressure distribution in the area above the truck fork and should, at least in the case of a loaded pallet, not be able to return to their original position.

Finally, U.S. Pat. No. 5,381,739 discloses a complicated pallet consisting of two lateral slides and supporting elements extending between them. The: in profile trapezoidal mediators with a wider base have transversely cut-around openings for insertion of a truck fork and ditto openings for receiving the ends of said support elements, which ends are glued in the current co-openings. The various co-sections are glued in a number of places to each other everywhere, where flat abutment between two sections occurs. The shape of the construction can be achieved or maintained only by solid gluing.

The object of the present invention is to counteract and as far as possible eliminate the above-mentioned disadvantages. Another object of the invention is to further develop the state of the art in this area in various further respects. In particular, the invention should offer an overall more reasonable solution to existing problems, the pallet or co-volume and weight should be minimal, if possible stacking / storage should be avoided or alternatives should be offered, production and varying products and product sizes should be possible, a rapid and advantageous adaptation to running, hygienic requirements must be met, return can be avoided and recycling made possible, automatic manufacturing / assembly can take place with minimal requirements for machine equipment, the strength of the entire pallet or parts of the same, especially the runners and an upper pallet deck. 15 20 25 30 35 3 509 474% race according to needs and wishes and increased opportunities for integration and advertising / information are created. The reduction in strength of slides or pallets through the action of moisture must be counteracted or reduced to a minimum, and beneficial combination effects must be sought with an increase in product strength, simplification of work operations and far-reaching guarantee of the product form. These objects are realized in that a pallet of the type initially indicated is substantially as described in the characterizing part of claim 1. Said objects are also realized in that the initially stated procedure is carried out substantially as stated. in the first procedural requirement.

Further features and advantages of the invention will become apparent from the following description taken in conjunction with the accompanying drawings, which illustrate in partially schematic form some non-limiting embodiments of the invention. In detail: Fig. 1 shows a perspective view of a preferred co-embodiment according to the invention, where the material around one opening for a truck fork is under folding, while the material around the other opening is pre-folded and Fig. 2 a flat, pre-cut and grooved and similar blank for a according to Fig. 1.

As can be seen from the drawing, one with 1 according to the invention consists of a rectangular, mirror-symmetrical blank of, for example, corrugated cardboard with the wave direction preferably transverse relative, while longitudinal extension. The blank can be elongated and has two central, longitudinal grooves or other bending instructions 3, the mutual distance of which corresponds to the desired width of the co-foot 2. On both sides of said grooves or the like there are grooves 4 at the corresponding or possibly greater distance for delimiting co-flanks. 5, after which at a slightly smaller distance grooves 8 connect to delimiting top surfaces 7, after which there are grooves and the like 10 for delimiting obliquely downwardly directed strut legs 9, which connect to free support legs 11 with free long edges 12 The support legs abut flat against the flanks 5 on their inside and are pressed against it by the inherent elasticity of the material and thanks to the diagonal course of the stay legs and thus effective locking in the corner between the flanks and the co-foot. In order to maintain the folded position of use while it is generally sufficient, the top surfaces 7 are fastened to an upper pallet deck (not shown), which together with an optional number of slides 1 constitutes a complete pallet (not shown).

The blank is provided at its end edges with sealing tape 6, which protects the open material, eg corrugated cardboard, against the ingress of moisture. The blank can be provided, when it is still a continuous web of material, with tape extending around the edges, or the tape can be applied after cutting sheets for co-blanks.

The length is longitudinally spaced apart in the support legs 11 and provided with rectangular openings 13, which are transversely through. The mutual distance of the openings corresponds to the distance between the fork legs (not shown) of a forklift truck (not shown). In the case of the blank, the openings 13 are edged laterally by protective flaps 14, which are preferably approximately as wide as the top surfaces 7. As can be seen in the drawing figures, within the area of these openings 13 the strut legs 9 and the top surfaces 7 are provided with substantially rectangular openings 15, the size of which as well as the size of the openings 13 including the protective flaps 14, corresponds to the size of the openings 13 of the pre-folded joint. The openings 15 can also only be found in the stay legs 9 and leave the top surfaces 7 unbroken, in which case the openings 13 of the finished folded mat are not open upwards but are shielded by thus continuous top surfaces, which are attached in their entirety, eg glued, under a pallet deck (not shown) of known kind. The flanks 5 are provided in the area of the openings 13 with flaps 16, which are connected to the blank with the long side 18, which faces the flank base or the co-base 2 and is pivotable around 50904741. perforations, grooves, etc. constituting this long side.

The corners of the flaps have notches 17, which facilitate or enable a folding procedure described later. These flaps can extend into the area of the top surfaces 7, whereby the flaps have a greater extent in the transverse direction of the slides. In a special case, you can settle for flaps 16 on only one side, so that you do not get a mirror-symmetrical blank in the longitudinal direction.

The folding takes place in such a way that the support legs 11 are folded in the direction of the adjacent strut leg 9, until between them an angle according to Fig. 1 or an even smaller angle is enclosed or the two legs abut against each other. Thereafter, the thus prepared outer portions, each consisting of a support and a strut leg, are folded towards each other until the form of use shown in Fig. 1 has been obtained. the top surfaces under a pallet deck. In this position, the brace can be attached, eg glued, by other means, since the stay legs extend diagonally from the upper center of the brace to the lower corners and would need to return more to a Consequently, no such accidental return can occur. Thanks to space to inadvertently change position. inherent material elasticity, the support legs lie flat against the inside of the respective flank. If desired, however, you can glue together flanks and support legs with the exception of the flap areas.

In such a case, the flaps can be left as part of the flanks or the support legs, whereby in addition to a supporting and pressure-distributing function. Only when a fork of a forklift truck is moved against the flaps 16, these flaps are folded inwards and take with them the side protective flaps, which then close while the side cavities and reinforce the area around the opening in all respects. At the same time, a locking by friction and / or a structuring takes place, which means, for example, that the openings 15 within the area of the stay legs 9 are slightly wider, so that the protective flaps can be pushed away in this slightly widened lateral location similar to that opposite the space. For purposes, the long edge can. 18 located longitudinal edge 19 have laterally inclined sections 20, 20 obtained from the central part 21 projecting into the opening 15 as a short and wide tongue, to which said section adjoins ledge-like. Thanks to the mentioned recessed sections, the protective flaps and the large flaps do not interfere with each other, but these lock each other in an advantageous manner in the position of use.

A more advantageous way of giving the co-mold its form of use should, however, be that in connection with the folding of the co-blank into one coil or shortly afterwards at each opening, the flap is first folded in on one side while the protective flaps are brought in, after which the flap is folded in. on the other hand, also taking with it the protective flaps associated with it, the latter folded flap will of course lie on top of the first folded flap, which is not a disadvantage but rather an advantage, since in this way the opening. All the flaps are held in place without the need for gluing, creating a lower reinforcement in connection with e dyl. Of course, you can glue together, for example, the superimposed flaps. If the main flaps are glued to each other, in this way an effective cohesion of the finished folded seam is obtained, which can be transported and stored in this form without the dressing being inadvertently dissolved.

The method of producing a pallet preferably integrated in a packaging and / or loading according to the invention is or filling line. A deck, alternatively a box or the like is fed, while co-blanks are advanced from the side and folded into slides, which are then fitted under the deck or the like, after which a finished pallet, a supplied container or the like is present. Upon integration in such a line, the need to manufacture slides and pallets in different places and transport-dependent transport, storage, etc. thus disappears. Rapid conversions to different pallet and pallet designs, etc., are thus easily possible.

It is also easy to take care of used pallets, especially if they are equipped with, for example, longitudinal tear tape, so that the pallet can be quickly and easily divided into smaller, easier-to-handle units. The invention is not limited to the embodiments described above and shown in the accompanying sketches, but can be modified and supplemented in any way within the scope of the inventive concept and the following claims. Wherever grooves have been described or shown, one can of course also or alternatively arrange perforations or the like.

Claims (10)

10 15 20 25 30 35 509 474 _ 8 PATENT REQUIREMENTS A pallet or pallet blacksmith (1) for such, where the runners are rectangular in profile and are made of in particular corrugated cardboard by folding a blank to form a continuous base surface (2) and two abutting top surfaces (7) and these joining flanks (5), in addition to which there are tie legs (9) for receiving the runners and partial support of a pallet load, can be drawn, with respect to the co-profile, from the areas of the top surfaces (7) abutting each other sloping downwards. - to and back into the corner area between the base surface (2) and the respective flank (5) said stay legs (9), to which connect flat to the inside of the flanks abutting and these in height completely covering support legs (ll), that the flanks (5 ) and the support legs (II) form within the area of transverse openings (13) for the fork to a forklift around vertical and horizontal lines foldable flaps (14 and 16, respectively) intended to be inserted when the truck fork is inserted or in connection with the manufacture. g or assembly is bent to the side or downwards in order to limit each opening side laterally or to lie on top of each other and in this way act as a pressure, which is a v, o c h distributing and locking each other in position. Pallet or the like according to claim 1, characterized in that its ridge (1) consists of a rectangular, preferably mirror-symmetrical blank of preferably corrugated cardboard with the wave direction oriented at right angles to the longitudinal extent of the runners, and / or seen while longitudinal and has two central, longitudinal grooves or other bending instructions (3), the mutual distance of which corresponds to said blank is elongated in the co-base width intended opposite. Pallet etc. according to claim 2, characterized in that on both sides of said grooves etc. (3) there are at a slightly greater distance grooves (4) for delimiting the co-flanks (5), in connection with which the latter grooves are arranged the top surfaces (7), which are delimited at a slightly smaller distance from grooves (6), in connection with which are arranged strut legs (9), which are delimited outwards by free support legs (11). A pallet or the like according to claim 3, characterized in that the support legs (II) abut flat against the flanks (5) on their inside and are kept pressed against it by the inherent elasticity of the material and thanks to the diagonal course of the stay legs and thus effective locking in the corner between the flanks and the forefoot. Pallet or the like according to any one of claims 1-4, characterized in that for maintaining the folded position of use, the top surfaces (7) are attached to an upper pallet deck, which together with an optional number of slides (1) constitutes a complete pallet . d ä r a v, A pallet or the like according to any one of claims 1-5, characterized in that the blank at its end edges is provided with glued sealing tape (6), which protects the open material, eg corrugated cardboard, against the penetration of moisture. d ä r a v, Pallet or the like according to any one of claims 1-6, characterized in that the openings (13) are edged laterally by protective flaps (14), which are preferably approximately as wide as the top surfaces (7), and that within the area of these openings (7) are provided therewith, (13) the strut legs (9) and the top surfaces are mainly rectangular openings (15), the size of which, as well as the size of the openings (13) including the protective flaps (14), correspond to the size of the openings (13) of the finished folded handle, or that the openings (15) are only in the stay legs (9) and leave the top surfaces (7) unbroken to form openings (13) of the finished folded handle, which are not open upwards but are shielded by continuous top surfaces, which in their whole is intended to be attached, eg glued, under a pallet deck. A pallet or the like according to any one of claims 1-7, characterized in that the flaps (16) are connected to the blank along the long side (18) facing the flank base or co-base (2) and are pivotable around perforations, grooves and the like constituting this long side, that the corners of the flaps have notches (17) for facilitating or enabling a folding procedure, and that the flaps (16) preferably extend into the area of the top surfaces ( 7) to obtain a greater extent in the transverse joint of the runners and / or that the stay legs (9) are the protective flaps in such an extended lateral space, or that for similar purposes the long edge (19) located opposite the long edge (18) has laterally inclined sections (20) , which are formed by the central part (21) projecting into the opening (15) as a short and wide ledge-like. the openings (15) in the area of slightly wider to the displacement of the tongue, to which said section adjoins A pallet or the like according to any one of claims 1-8, characterized in that the flaps (16) are arranged only on one side of a blank which is not mirror-symmetrical in the longitudinal direction. d ä r a v, A method of manufacturing a pallet according to any one of claims 1-9, which pallet is formed by a deck and slides (1) arranged thereunder, which are made of in particular corrugated cardboard by folding a blank to form bottom and top surfaces (2). and 7) and these flanks (5), strut and support means (9 and 11, respectively) for receiving the runners and partial thereof, joining together to support the support of a pallet load, characterized in that the support legs (11) are folded in the direction of the adjacent strut leg (9), until between them a smaller, acute angle is enclosed or the two legs abut each other, after which the thus prepared outer portions each consisting of a support and a strut leg are folded towards each other until the use form has been obtained, in which position but is intended to, for example, be glued, with the top surfaces under a pallet deck, that the flaps are left as part of the flanks or support legs for the performance of a load-bearing and pressure-distributing function, or that in sa In connection with the folding of 10 15 20 25 30 35 ll 509 474 blank to one with or shortly afterwards at each opening, the flap is first folded in on one entrainment of the protective flaps, after which in the presence of flaps on both sides the flap is folded in on the other side, also with the accompanying flaps associated with it, the later folded flap being placed on top of the first folded flap to create a lower reinforcement in connection with the opening, that the method is integrated in a and / or filling line, wherein a tire, alternatively a box e dyl, the side is fed under packaging, loading or forwards, while co-blanks are brought forward from the side and folded into slides, which are then applied under the deck e dyl, after which a finished pallet, a supplied container e dyl is present.