WO2017174653A1

WO2017174653A1 - Device for lashing down piece goods on a loading platform

Info

Publication number: WO2017174653A1
Application number: PCT/EP2017/058101
Authority: WO
Inventors: Uwe Schöbel
Original assignee: Westdeutscher Drahtseil-Verkauf Dolezych Gmbh & Co. Kg
Priority date: 2016-04-06
Filing date: 2017-04-05
Publication date: 2017-10-12
Also published as: DE202016101819U1

Abstract

The subject matter of the present invention is a device for lashing down piece goods (1, 2) on a loading platform (3), the device being equipped with at least one edge protector element (6) and at least one lashing means (4, 5). The edge protector element (6) is located between an edge of the piece goods (1, 2) and the lashing means (4, 5) running over said element. In addition, the edge protector element (6) is completely or partially made of plastic. According to the invention, the entire element or part of the element consists of recycled plastic.

Description

Device for lashing cargo on a loading surface

Description:

The invention relates to a device for lashing of piece goods on a loading surface, with at least one edge protection element and at least one lashing, wherein the edge protection element between an edge of the cargo and the over it lashing is arranged, and wherein the edge protection element is wholly or partly made of plastic.

Lashing or general lashing means the fixing or fixing of the piece goods on the loading area, with the help of straps or lashing generally. When lashing down the piece goods in question is additionally pressed or pressed on or to the loading area. As a possible lashing not only straps and in particular straps or plastic straps can be used. But lashing according to the invention means, for example, a lashing line. A device of the structure described above is described for example in DE 198 15 095 C1. Among other things, this involves lashing down or pulling down goods in which the outer surfaces are not all flat, but partly convex-shaped, as is known for cylindrical piece goods such as wound rolls of a strip-shaped material made of sheet metal or paper. With such piece goods, the problem arises that the non-uniform outer edges must be protected from damage. In fact, particularly high surface pressures occur at these outer edges, which can lead to damage to the cargo or lead. For this purpose, in the context of DE 198 15 095 C1, a special edge protection element is proposed which has an outer edge on its outside.

Has curvature for passing over the lashing. As a result, a resultant of the tensioning force exerted on the load by the lashing means should impinge on the edge of the piece goods spaced therefrom. This has proven itself in principle.

In addition, a comparable device is presented in DE 10 2010 018 650 A1. This is about ensuring a high level of slip resistance over a long period of use. For this purpose, an edge protection element is described, which is constructed of a solid plastic with low elasticity and a plastic of a more yielding material. The production of such an edge protection element is naturally complex and expensive.

Finally, in the prior art according to DE 10 2010 018 651 A1 an edge protection element is presented, which is easy to handle and at the same time is to be produced inexpensively. This is achieved by different dimensions of individual legs.

The prior art may not be satisfactory in all aspects. In particular, the production costs need to be improved. This can be attributed not only to the use of plastic as a raw material for the edge protection elements, but also to the fact that the price of plastics is subject to considerable fluctuations. This makes it difficult to realize reliable forecasts and calculations. As such, there is a need to find alternatives.

The invention is based on the technical problem of further developing such a device for lashing piece goods on a loading surface so that, in particular, the production costs are reduced. To solve this technical problem, a generic device in the invention is characterized in that as plastic completely or partially recycled plastic is used. It has proven itself overall that the plastic predominantly, d. H. to more than 50 wt .-%, made of recycled plastic. It is even possible and conceivable that 100% recycled plastic is used as plastic in the realization of the edge protection element.

The invention in this case explicitly comprises edge protection elements that are made entirely of plastic. In this case, recycled plastic can be used at least partially. But it is also possible to produce the edge protection element completely made of recycled plastic. In addition, variants are within the scope of the invention, in which the edge protection element is partially made of recycled plastic and partly of virgin plastic or virgin material. Likewise, variants are covered, in which the edge protection element with, for example, a reinforcement made of steel, a carbon fabric, etc. is additionally equipped. Also in this case, the plastic used may be wholly or partially recycled plastic or a corresponding recyclate. The remaining plastic may be obtained from new material.

Within the scope of the invention, therefore, one or more of the recycled plastics are used in whole or in part for the production of the edge protection element. Such recycled plastics are in handy today

In addition, they are at least roughly classifiable in terms of their properties and composition. In addition, such recycled plastics or recyclates are available at a low price, which is typically only a fraction of the price of new material. Consequently, it is possible to observe special cost advantages in the production of the edge protection element and consequently of the entire device for securing piece goods on a loading surface in the context of the invention. The mentioned recycled plastics can be obtained, for example, from the recycling of plastics for packaging, as has already been done and carried out within the framework of the Dual System Germany. Such plastics are typically derived from the recycling of ingredients of the "yellow sack." In addition, relatively pure sorted recycled plastics can be used, which are available through the recycling of so-called PET (polyethylene terephthalate) bottles or disposable bottles recovered recyclate are composed mainly of PET as a polyester and one or more polyolefins.

Of particular interest here is the fact that the recyclate (from the disposable bottles) contains predominantly PET or polyester, which is particularly predestined for the production of edge protection elements. This can be attributed to the fact that PET or polyester has a high breaking strength and dimensional stability. In addition, good sliding and wear properties are observed. In addition, the melting point is usually located above 200 ° C, so that a trouble-free use is possible worldwide. Finally, polyester or PET plastics stand out

a consistently low moisture absorption. The basic processing of recycled plastics and their use for the production of plastic tapes by way of example is described in the review article "High-Strength Uniaxially Drawn Tapes from Scrap Recycled Polyethylene Terephthalate" by the authors J. Morawiec et al. a. (Journal of Applied Polymer Science, Vol. 86, 1426-1435, 2002).

As disposable bottles are increasingly in use, the recyclate obtained from predominantly PET or polyester is available in large quantities. In addition, the manufacturing costs are low by this fact, which amount to only a fraction of the virgin material. As a result, the device according to the invention can be realized particularly inexpensively. Here are the main benefits. The recycled plastic used to produce the edge protection element is made predominantly of polyester and additionally an additive. In this context, it has proven useful if the recycled plastic in question from about 90 wt .-% to 99 wt .-% and about 1 wt .-% to 10 wt .-% of the additive composed. Preference is given to working with a polyester content in the recycled plastic of 90 wt .-% to 95 wt .-%. Consequently, the additive in the recycled plastic takes about 5 wt .-% to 10 wt .-%. The additive available at this point is one which consists of one or more polyolefins. The additive or the one or more polyolefins come regularly from the group consisting of polyethylene, polypropylene and combinations. The polyethylene is usually linear low density polyethylene or high density polyethylene. Likewise, combinations are conceivable.

For the production of the edge protection element from the recycled plastic is typically proceeded so that the used for recycling plastic is obtained according to an advantageous embodiment of the previously mentioned PET bottles. In fact, the PET bottles in question are usually first shredded and then washed. The so-called "flakes" obtained in this way can be used directly as an edge protection element for reprocessing, in which case an extrusion has proven favorable, ie the edge protection element is advantageously designed as a plastic injection-molded part, with the plastic completely or partially being the plastic previously described is used.

The preparation of the PET bottles in question and the production of the previously mentioned "flakes" is described in detail and basically in US 4 830 188. Overall, it has been found that, for example, an edge protection element made entirely from the stated recycled plastic material An edge protection element made of new material or polyester has strength values which are only 10% and at most 20% below the strength values observed for the comparable edge protection element made of the new material Such a minimally reduced strength can be mastered without problems and is suitable for the application according to the invention In combination with a device for lashing down cargo on a loading surface, it is a good idea if the edge protection element is largely L-shaped in cross-section, so that virtually any shape of piece size can be achieved lash with the help of the device according to the invention. This is also true, and especially for cylindrical piece goods, like this

previously described, that is, for example, metal, wood, paper rolls, etc. In this case, it will be advantageous to work with edge protection elements of short length. On the other hand, if more or less parallelepiped-shaped piece goods are to be lashed, then mainly longitudinally extended edge protection elements are used.

So that the lashing is properly performed on or on the edge protection element, it has proven useful if the edge protection element is equipped with one or more guides for the guided over this lashing. The guide in question can be a stop, a tab, an eyelet or the like in the simplest case.

In addition, it is recommended that the edge protection element is equipped with one or more bulges for the guided over this lashing. With the help of this bulge, a uniform force distribution can be achieved. In particular, the bulge can be designed so that the surface pressure is reduced at the edge of the piece goods equipped with the edge protection element, so that damages are expressly not observed in this area. A further factor contributing to this is the fact that the edge protection element is typically designed to be slip-resistant at least on its surface facing the lashing means. This can be done by an additional rubber coating.

As already explained, the edge protection element is advantageously a one-piece plastic injection molded part. But it is also possible to equip the edge protection element with one or more reinforcing inserts. The reinforcing inserts are typically made of a material other than plastic. For example, it is conceivable with a

Steel fabric, a steel rod, a glass fiber fabric, etc. to work as a pickled reinforcing element. Then the edge protection element is a total of several parts. Also in this case it is a plastic injection molded part.

In order to produce the edge protection element cost and adjust the demand for raw materials as low as possible, it has been proven that the edge protection element is completely formed partially as a hollow profile. In addition, such an edge protection element has a low weight and can therefore be easily processed and handled.

The lashing means is preferably a lashing strap which is equipped with at least one tensioning ratchet. The lashing strap itself can advantageously be designed as a woven belt made of woven plastic threads. The tensioning ratchet may be one which is equipped with at least one belt winding shaft and a ratchet wheel lock, as described by way of example in DE 37 35 094 A1 of the applicant.

As a result, a device for lashing piece goods on a loading surface is described, which can be produced particularly inexpensively. This can be attributed to the use of recycled plastic and the replacement of new plastic material used at this point. In addition, the edge protection element protects the appropriately lashed cargo in its intended use against any damage, especially in the region of the edge of the cargo.

Another advantage is that the edge protection element, for example, predominantly recycled plastic a particularly smooth and

has low-friction surface. Taking into account that the recycled plastic in question consists of more than 90% by weight of polyester, there are de facto comparable properties to a polyester polyester edge protection material. In conjunction with the lashing strap embodied as a woven fabric belt made of synthetic threads, low coefficients of friction between the respective lashing strap and the edge protection element are achieved in this way, which correspond to a coefficient of friction or a coefficient of friction for dry sliding friction of less than 0.4. As a result, a small wrap friction is observed overall and can be transferred lossless with the aid of the tensioning ratchet biasing force on the lashing in its entire length. That is, the biasing force is uniformly over the entire length of the lashing viewed on the cargo.

In this way, the cargo or the cargo to be transported on the loading surface is optimally protected against damage by the lashing means. This also applies and especially for paper rolls. Due to their high weight, these require high preload forces, which leads to prints or damage in the edge area without an edge protection element. Such impressions or damage is effectively counteracted with the edge protection element made of recycled plastic.

In addition, inhomogeneous cargo such as sacks can be lashed properly on the loading area. Because the edge protection element ensures that the lashing can not cut into the load. In addition, the edge protection element can partially bundle the piece goods. This applies, for example, in the event that paving stones are to be lashed on a pallet. Here are the main benefits.

In the following the invention will be explained in more detail with reference to a drawing showing only one exemplary embodiment; show it:

1 and 2, the device according to the invention when lashing different sized piece goods on a cargo bed and

Fig. 3A different edge protection elements as shown in FIG. 2 for

Can be used as well as Fig. 3B shows a possible edge protection element according to FIG. 1.

In the figures, a device for lashing of piece goods 1, 2 is shown on a loading area 3. In fact, the piece goods 1 according to FIG. 1 are stacked stones 1, which are lashed on a loading surface 3 in the form of a pallet. By contrast, the piece goods 2 are a cylindrical paper roll 2 which is lashed or lashed down, for example, on a truck bed as a loading area 3. This is shown in FIG. 2.

In both cases, the lashing or lashing down of the respective piece goods 1, 2 lashing means 4, 5. The lashing means 4, 5 is in the embodiment of a lashing 4 and a tensioning ratchet 5 together. The lashing strap 4 is a fabric strap made of plastic threads. The plastic threads are in turn made of, for example, polyester, polyamide and / or polypropylene. Consequently, it is a corresponding polyester, polyamide and / or polypropylene fabric.

The tensioning ratchet 5 is in turn equipped with a belt winding shaft 5a and a Klinkenradgesperre 5b. You can also see a hand

have 5c. With the help of the tensioning ratchet 5, the lashing belt 4 is acted upon by the necessary biasing force, so that the cargo 1, 2 to be secured on the loading surface 3 is kept perfectly. For this purpose, the tensioning ratchet 5 may be looped into a free end of the lashing belt 4. A fixed end of the lashing strap 4 is fixed in the embodiment of FIG. 2, each with hooks in an eyelet or a comparable stop means 7 on the loading area 3.

For the basic structure of the device according to the invention for locking cargo 1, 2 on the loading surface 3, at least one edge protection element 6 is in addition to the discussed lashing means 4, 5. In the embodiment of FIG. 1 is exemplified with two long or elongated edge protection elements 6 worked, whereas Fig. 2 shows two opposite short edge protection elements 6. The edge protection element 6 in question is arranged between an edge of the piece goods 1, 2 and the lashing means 4 guided over it. In addition, the edge protection element 6 is wholly or partly made of plastic.

In the context of the invention, as plastic for the production of the edge protection element 6, a recycled plastic is wholly or partly used. In fact, in the exemplary embodiment and not restrictive works so that the edge protection element 6 shown in each case is made entirely of recycled plastic. The recycling plastic is in turn obtained from the processing or recycling of PET bottles. Since the composition of the "flakes" obtained through the reprocessing of the PET bottles can be relatively well known or limited, the recycled plastic consists of about 90% by weight to 99% by weight of polyester and about 1% by weight. % to 10 wt .-% of an additive together.

The additive itself consists of one or more polyolefins. In this case, polyolefins from the group consisting of polyethylene and polypropylene and combinations can be used. It can be seen that the edge protection element 6 is largely L-shaped in cross-section. In addition, the edge protection element 6 can be equipped with one or more guides 8 for the lashing means 4, 5 guided over this. In the embodiment according to FIG. 2, the guide 8 is an eyelet for the lashing strap 4 guided thereby. The guide 8 in the variant according to FIG. 1, on the other hand, is designed as a depression or boundary walls 8 defining the recess.

In addition, the edge protection element 6 can be equipped with one or more bulges 9, which can be seen in particular in the individual examples according to FIGS. 3A and 3B. With the aid of these bulges 9, the surface pressure exerted by the lashing strap 4 on the piece goods 1, 2 in the region of the edge of the piece goods 1, 2 can be made uniform. Not explicitly shown is the further possibility of the edge protection element 6 at least on its the unit load 1 facing surface slip-resistant form. On the other hand, the surface of the edge protection element 6 facing the lashing means 4 will be designed to be predominantly smooth and low-friction, in order to realize an overall low looping friction, as has already been described in the introduction. For reasons of weight or to save material, the edge protection element 6 is wholly or partially designed as a hollow profile. This can be seen in particular in a schematic section through the edge protection element 6 in the embodiment of FIG. 1.

Claims

claims:

1 . Device for lashing piece goods (1, 2) on a loading surface (3), with at least one edge protection element (6) and at least one lashing means (4, 5), wherein the edge protection element (6) between an edge of the piece goods (1, 2) and the overlying lashing (4, 5) is arranged, and wherein the edge protection element (6) is wholly or partly made of plastic, characterized in that as plastic completely or partially recycled plastic is used.

2. Apparatus according to claim 1, characterized in that the plastic predominantly, that is more than 50 wt .-%, consists of the recycled plastic.

3. Apparatus according to claim 1 or 2, characterized in that the plastic is made up to a maximum of 100 wt .-% of the recycled plastic.

4. Device according to one of claims 1 to 3, characterized in that the recycled plastic consists of predominantly polyester and additionally an additive. 5. The device according to claim 4, characterized in that the recycled plastic from about 90 wt .-% to 99 wt .-%, in particular 90 wt .-% to 95 wt .-% polyester and about 1 wt .-% up to 10% by weight, in particular approx.

5 wt .-% to 10 wt .-%, composed of the additive.

6. Apparatus according to claim 4 or 5, characterized in that the additive consists of one or more polyolefins.

7. The device according to claim 6, characterized in that a polyolefin is selected from the group consisting of polyethylene and polypropylene and combinations as an additive.

8. Device according to one of claims 1 to 7, characterized in that the edge protection element (6) is formed in cross-section largely L-shaped.

9. Device according to one of claims 1 to 8, characterized in that the edge protection element (6) is equipped with one or more guides (8) for the guided over this lashing means (4, 5).

10. Device according to one of claims 1 to 9, characterized in that the edge protection element (6) has one or more bulges (9) for the guided over this lashing means (4, 5).

1 1. Device according to one of claims 1 to 10, characterized in that the edge protection element (6) is at least on its the piece goods (1, 2) facing surface slip-resistant.

12. Device according to one of claims 1 to 1 1, characterized in that the edge protection element (6) be designed as a one-piece plastic injection molded part.

13. Device according to one of claims 1 to 12, characterized in that the edge protection element (6) is wholly or partly formed as a hollow profile.

14. Device according to one of claims 1 to 13, characterized in that the lashing means (4, 5) consists essentially of a lashing strap (4) and at least one tensioning ratchet (5).

15. The apparatus according to claim 14, characterized in that the lashing strap (4) is designed as a fabric strap made of plastic threads.