DE2336297A1 - Shrink wrapping unit - foil held by grid frames around base board, shrunk after stacking - Google Patents

Abstract

A package built up as a stack can be placed on a wheeled platform. A plastic foil is held by attachment elements vertical to the edge area of a base board. Subsequently the packages are stacked on to the board inside the plastic foil and after completing the stacking process, the plastic foil held by the attachment units to the stack is heat shrunk around the stack. Finally the attachment elements are taken off. The attachment elements are formed by grid frames.

Description

The invention initially relates to a method for producing a shipping unit, which consists of a number of Goods or packaging units is assembled using a floor board provided with castors. The invention also relates to devices for carrying out the method and those according to the method manufactured shipping unit.

To send a number of goods or packaging units to a specific address, it is known to use them To stack units on a floor board provided with rollers and to use side retaining walls, e.g. in grid form, to surround. For example, a wholesaling company can, according to the existing orders of a retailer combine the ordered goods or packaging units in this shipping unit and deliver to the customer. These after the container

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The principle of the shipping method has proven itself according to its system, but it has some shortcomings at. The side walls or lattice frames for holding the individual goods or packaging units are required. On the one hand, this has correspondingly high manufacturing costs for each shipping unit. In addition, these walls or lattice frames after must be returned as empties after delivery. This brings about the bulkiness of these Share not insignificant additional costs. Finally, in the case of goods or packaging units, the heterogeneous with different external dimensions are given the risk of stacking them inside the shipping unit are not held firmly by the walls or lattice frame, but rather during of the transport can move back and forth within the shipping unit. This can damage it of the goods. Another disadvantage is that goods or packaging units can be stolen from such a shipping unit, unless special additional anti-theft devices are provided.

The object of the invention is to create a method for producing a shipping unit, as well as associated devices and the shipping unit itself, with overcoming the disadvantages of the known arrangements and methods with simple and low cost means add cost to manufacture the shipping unit to be transported,

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the shipping costs and the return transport costs for the empties are reduced. With the finished shipping unit the individual goods or packaging units should be held firmly and secured against displacement even if they have different dimensions and thus the outer contours of the shipping unit are uneven, e.g. have steps or protrusions. At the same time a Anti-theft devices are created.

To solve this problem, the invention initially proposes in a method of the type outlined at the outset that fine plastic film is held by holding means resting on its outer surface in an approximately vertical arrangement in the edge region of the floor board be stacked within this plastic film that after the end of the stacking process the plastic film held by the holding means on the stack is shrunk by supplying heat and that the holding means are removed after the shrinking process has ended. There are several advantages with the method according to the invention. Only the bottom board with the rollers, the goods and the shrink film around them are shipped. So there are no costs for the production of the side walls or lattice frames for each shipping unit. There are only Lich the cost of holding means to spend. Dm but sufficient ver relatively few holding means for stacking and shrinking the goods , this effort is much smaller than the cost of making the previously required side walls and

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Lattice frame. A v ^T eiterc reducing shipping costs sieve obtained by the elimination of the weight of the side walls or lattice frame, and also caused by the hereby space saving. In particular, the return transport of the empties is facilitated and improved, since now only the relatively light and less liaum-demanding floor board has to be returned. In particular, this makes it easier for the customer.

The be5.m stack between the Ilaitcmittel, eg lattice frame, and the ^r Jare located film is pulled so tightly around the goods with the shrinkage that it adapts to any unevenness or irregularities of the stack of goods and the individual goods or. Holds packaging units tightly together and within the stack. This avoids the risk that an individual unit of goods or packaging will slide back and forth within the overall stack. At the same time, the individual goods or packaging units are secured against theft, since the foil surrounding them would first have to be separated in order to steal the goods, which would make the theft obvious. The shrinkage of the film can be chosen so that even in the case of a heterogeneous stack of goods with non-smooth sides and surfaces, e.g. with protruding or recessed edges due to different sized goods or packaging units, the shrinking wraps the film around the stack that the individual goods or packaging units are held firmly and permanently by her.

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BATH ORIGINAL

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According to a preferred embodiment of the invention The method is provided that the plastic film when stacked at the edges of the Bowls boards along so far to below the floor board and that the film is finished Stack protrudes so far that the shrunk film engages over the entire stack from above and further holds firmly to the floor board. This creates a self-contained shipping facility that is also available for Inclined position, as well as in the case of clumsy handling, does not lose individual goods or packaging units or falls apart completely.

The invention also provides a further development of the described Procedural measures before that before and during the stacking a side surface of the plastic film and the Ilaltemmittel free, that is left open and that the plastic film on the adjacent Lateral surfaces protrudes so far from this that they after completion of the stacking process but before the shrinking process on the open side surface of the stack, this covering, placed and on their abutting edges are connected to one another, preferably welded. With that the goods are through the open Easy and convenient to stack through the side.

The invention also relates to such a shipping unit, which consists of a floor board provided with rollers, one stack of goods and shipping units and one the entire shipping unit on all sides surrounding and cohesive plastic film

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stands. The stack can be homogeneous but also heterogeneous be, \ 7obie homogeneous a .stack with continuous smooth and uninterrupted lateral boundary surfaces, with heterogeneous, on the other hand, a stand with non-smooth, that is, detached or interrupted Boundary surfaces is understood.

The invention also relates to devices for carrying out the method explained. These Devices, as well as further advantages of the invention, are the following description of possible embodiments of the invention and the associated drawing. In the drawing shows:

Fig. 1: In a perspective view of the floor board with overlying Plastic film and holding means,

Fig. 2 is a front view of the VersandeInhr 't, 3:., Which belongs to Figure 2 plan view.

Figure 1 shows in perspective the floor board 1 with the rollers 2, the plastic film 3 and the IIalt-rr.ittel in the form of three grid frames 4, 5 and 6, which are articulated along their side edges 7, 8. As can also be seen from FIGS. 2 and 3, the plastic film 3 is located on the inside of the lattice frames 4 to G.

The use of lattice grating has al- holding means

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the preference for the subsequent shrinking of the plastic film clic hot air can reach the film unhindered. For detachable attachment of the lattice frame Fastening means are provided on the floor board, e.g. tuck-in lugs 9 of the central lattice frame 5, which are shown in corresponding ki'iistecköffnungen of the floor board 1, not shown in the drawing, from the side forth oin ^ Hrrbfvr are. Then the two can lateral grid frame 4, 6 'against the floor board and be kept in this position.

As already mentioned above, according to a preferred embodiment of the invention, the design and arrangement of the detachable fastening means between the lattice frame and the floorboard is chosen so that the lattice frame can be placed horizontally against the edges of the floorboard, with the film 3 between the lattice frame and the floorboard so that it can hang down according to item 3 ¹ to below the floor board. According to a further proposal of the invention, it is advisable to use fastening means which do not penetrate or injure the film. These can be clamp or magnetic locks attached to the lower edge of the lattice frame, which work together with corresponding counter parts on the edge of the floor board. The width of the grid frame corresponds to the length of the corresponding edges l ^{f of} the floor board.

According to the illustrated, preferred embodiment

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E / .D ORIGINAL

Example of the invention, the plastic film protrudes according to number 3 "up over the holding means so far above before that after the wrapping of the foil parts 3 "inwards on the stack and after shrinking the The top of the stack of goods is fully covered by the shrunk film. In the same way is the lower extension 3 'of the film so long that after shrinking it grips the bottom board with a secure hold from below. This lower part of the film pulls itself under the floor board.

Furthermore, means or devices not shown in the drawing for holding the film to the Grid frame can be provided before and during the stacking process. It is also within the scope of the invention a device for automatic foil loading the holding means, here the lattice frame, to be provided. This, automatically working device brings automatically the film in the position according to Figure 1. The support rods described in more detail below can be used for this device 13 belong.

The holding means and the plastic film form an open side surface in the loaded state, so that after Attaching the holding means to the floor board from the side indicated by arrow A in Figure 1, the goods or packaging units 10 can be introduced laterally and stacked on the bottom board. the According to numbers 11, 12, plastic film protrudes over the adjacent lattice frame and is secured by locking means (not shown) held on the lattice frame during stacking. The parts 11, 12 of the foil

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are so long that they are placed on the open side surface of the stack after completion of the stacking process according to the numbers II ¹ , 12 '(see Fig. 3) and completely cover the open side surface. In the case of a floor board with the dimensions 80 χ 120 cm, as provided for the standardized pallet, the open side surface is on one of the sides with a length of 120 cm, which facilitates the stacking process accordingly. The two film parts 11 must then each be about 60 cm long in order to be able to cover this open side. After covering, the ends of the film are then welded to one another, for example according to the arrows B. For this purpose, holding rods 13 with holders for gripping the free longitudinal edges of the film parts 11, 12 can be provided. After the welding has taken place, the rods are separated or pulled off from the end edges of the film parts 11, 12.

After closing the open side through the film parts 11 ', 12', the film is shrunk, e.g. by means of a supply of hot air, whereby the film is still held by the lattice frame, including any additional structures. Using a shrinkable film, e.g. a biaxially shrinkable one Foil made of polyethylene with a corresponding shrink factor in each axial direction, it resembles in ideally also unevenness in the outer contours of the stack of goods. This is shown in dash-dotted lines in FIG shown. The foil part 3 * engages under the bottom board (see point 14) and the According to item 15, film part 3 ″ rests on the top of the stack with shrinkage tension

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Shrinkage, the lattice frames are removed and stand for the production of the next shipping unit to disposal.

As FIG. 2 shows, the finished shipping unit is held or enclosed so that it can be loaded and is theft-proof by the shrink-wrapped plastic film. That. The basic dimensions of the pallet, e.g. 80 χ 120 cm, are fully available for stacking the goods. On the other hand, however, as already explained, care must not be taken when stacking on continuously smooth rare surfaces.

Expectations

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Claims (1)

Patent and protection claims 1.! A method for producing a shipping unit, which is composed of a number of goods or packaging units, using a floor board provided with lathe rollers , characterized in that a plastic film of holding means (4, 5 and 6) resting on its outer surface is held in an approximately vertical arrangement in the edge region (I ¹ ) of the bottom board (1) that afterwards the goods or packaging units (10) are stacked on the bottom board (1) and within the plastic film (3) that after the end of the stacking process the plastic film (3) held by the holding means on the stack (10) is shrunk around the stack by supplying heat and that the holding means are removed after the end of the shrinking process. 2, method according to claim 1, characterized in that the film (3) when stacked on the edges (I ¹ ) of the floor board (1) along to below the floor board hangs so far (3 ¹ ) and that the film so the finished stack extends far beyond (3 ") that the shrunk film holds the entire stack firmly on the bottom board (1). 3. The method according to claim 1, or claims 1 and 2, characterized in that before and during the 409886/0089 Stacking erne side surface of the plastic film (3) and dor. IIrltem ents (4 to 6) free, that is left open and that the plastic film (3) protrudes from the adjoining refrigerants (4, G) so far (11, 1 ?.) that it nrcli the termination of the stack. Process is placed on the open side surface of the stack, covering it (II ¹ , 1 ?. ') and connected to one another at their abutting edges, preferably welded. 4. Device for performing the method according to one or more of claims 1 to 3, characterized in that that serve as a holding means lattice frame (4, 5 and G). 5. Apparatus according to claim 4, characterized in that the lattice frame (4, 5 and 6) and the bottom board (1) have releasable fastening means (9, 9 ') for attaching and removing the lattice frame in an approximately horizontal direction. 6. Apparatus according to claim 5, characterized by the Plastic film (3) non-penetrating or non-injurious fasteners, e.g. clamp or magnetic locks. 7. Device according to one or more of claims 4 to 6, characterized in that three lattice frames (4, 5 and 6) articulated to one another at their longitudinal edges (7, 8) and at their lower edges with the fasteners (9, 9 ') are provided for detachable attachment to the floor board (1), the 409886 / U089 ORIGINAL BATHROOM Width of the grid frame corresponds to the length of the corresponding edges (I ¹ ) of the floor board. 3. Device for performing the method according to one or more of claims 1 to 3, characterized by means of a device for automatic film loading of the holding means, e.g. the lattice frame (4 to 6). 9. The device according to claim 8 and / or for performing the method according to one or more of the claims 1 to 3, characterized by rods with brackets for the end edges to be welded together for covering the open side surface serving foil parts (11, 12) and by means of the rods (13) to be locked on the grid frame (4, 6) during stacking. 10. Shipping unit which is produced according to the method according to one or more of claims 1 to 3, characterized in that the unit consists of a floor board (1) provided with rollers, a Stack of goods and shipping units (10) and one surrounding the entire shipping unit on all sides and cohesive plastic film (3). 409886/0089