WO2023099116A1

WO2023099116A1 - Protective element for guiding textile lashing or fastening means for lifting, clamping or lashing objects

Info

Publication number: WO2023099116A1
Application number: PCT/EP2022/080830
Authority: WO
Inventors: Uwe Schöbel
Original assignee: Westdeutscher Drahtseil-Verkauf Dolezych Gmbh & Co. Kg
Priority date: 2021-12-03
Filing date: 2022-11-04
Publication date: 2023-06-08
Also published as: DE202021106624U1

Abstract

The invention relates to a protective element for guiding textile lashing or fastening means (1) for lifting, clamping or lashing objects (2), having at least two protective layers (6) facing the object (2), wherein the two protective layers (6) are coupled to one another so as to be movable relative to one another in the longitudinal direction (L) of the protective element, characterized in that there is provided a bridging layer (7) which is additionally arranged between the two protective layers (6) in the longitudinal direction (L) of the protective element and which is also designed as a protective layer, wherein the bridging layer (7) is fixedly connected to one of the two protective layers (6) and engages over the other protective layer (6) with a fixing element (8) that allows the longitudinal displacement.

Description

Protective element for guiding textile lashing or lifting gear for lifting, tensioning or lashing objects

Description:

The invention relates to a protective element for guiding textile lashing or slinging means for lifting, tensioning or lashing objects, with at least two protective layers facing the object, both protective layers being coupled to one another so that they can move relative to one another in the longitudinal direction of the protective element.

Protective elements are usually used to prevent damage to the lashing or lifting gear. Textile lashing or slinging means for lifting, tensioning or lashing objects are, for example, ropes, belts or straps, in particular plastic straps, which can be subjected to a tensile force, for example using a ratchet or in some other way. In this way, the respective object is held, lifted or transported. Such slings are used, for example, when lifting or moving loads or their transport. On the other hand, lashings are mainly used when it comes to holding goods.

A special field of application for lashing devices is load securing on and off vehicles. For example, automobiles on car transporters are held on a loading area by, among other things, guiding the sling in question over individual tires and the tires being braced or lashed to the loading area. In this context, the protective element ensures that the force is evenly distributed in the lashing strap, e.g. B. the clamping force applied with a clamping ratchet to the opposite side of the clamping side with as little loss as possible

transfer. In addition, damage to the textile lashing or lifting gear guided with the help of the protective elements should be avoided in the area of edges. Furthermore, the protective element provides for an increase in friction between the lashing or attachment means and the smooth tire surface.

Irrespective of the protective function of the protective element, in the described application it should also ensure that the lashing or attachment means guided with it and in particular the plastic belts used at this point slide along the protective layer with particularly low friction. According to EP 3 489 186 A1 or also in EP 1 791 777 B1, there are already different approaches in the prior art to improve the gliding ability of the textile lashing or attachment means in relation to the protective element or the protective layer.

In the generic prior art according to DE 20 2013 012 453 U1, the procedure is such that the protective element has at least two protective layers which lie on top of one another during use and are coupled to one another so that they can move relative to one another in the direction of the longitudinal direction of the protective element. In this way, improved cut and abrasion protection is to be provided, particularly in the area of edges over which the respective textile lashing or slinging means is guided in a narrow radius during use.

US Pat. No. 4,039,217 proceeds in a similar manner. In this case, too, two protective layers or, according to the exemplary embodiment, even three protective layers are implemented, which lie on top of one another during use and are coupled to one another so that they can move relative to one another in the direction of the longitudinal alignment of the protective element. This protects a lifting sling against a load and

the focus is once again on keeping any cutting or friction forces away from the lifting sling in this way.

The prior art described above has proven itself in principle, but still offers room for improvement. In the generic teaching according to DE 20 2013 012 453 U1, the procedure is such that one protective layer is designed in the manner of an elongated flat web, at the end sections of which there is a loop aligned transversely to the protective layer. This forms a fastening device with which the protective layer can be fastened to the lashing or attachment means. The other protective layer is firmly connected to this on a narrow side. Otherwise, both protective layers lie loosely on top of each other. As a result, there is no wrinkling or bulging of the protective layers, especially with small radii of curvature, because the two protective layers can move relative to one another in the direction of the longitudinal alignment of the protective element.

The teaching according to US Pat. No. 4,039,217 proceeds in a comparable manner. In this case, too, the protective layers are coupled to one another at least on one side and can thus also be guided around sharp edges by a relative movement between them without the formation of folds.

In practice, however, there are increasing requirements such that, for example, when securing the wheels of a motor vehicle on a loading area, the protective element must be adapted to the respective diameter and to the specific circumstances. In practice, this means that problems often arise in that either the protective element is not positioned correctly in comparison to the tire, i.e

in particular as symmetrically as possible, starting from the highest part of the tire, encompasses the tire or there is even a risk that the protective element collides with a clamping device.

In this context, direct contact of the lashing strap or lashing means with the tire surface should be prevented. On vehicles with very small tire diameters, there is a risk that the protective element will collide with a ratchet, for example. With large tire diameters there is a risk that the webbing of the lashing strap will come into direct contact with the tire surface. This has an unfavorable effect on the distribution of the securing forces on both sides of the tire. This is where the invention aims to remedy the situation overall.

The invention is based on the technical problem of further developing such a protective element in such a way that flexible adaptation to different installation conditions is realized, taking into account simple adjustability of the two protective layers relative to one another.

To solve this technical problem, a generic protective element for guiding textile lashing or slinging means is characterized within the scope of the invention in that a bridging layer is additionally arranged in the longitudinal direction of the protective element between the two protective layers and is also designed as a protective layer, the bridging layer being connected to one of the both protective layers is firmly connected and the other protective layer overlaps with a longitudinal displacement permitting fixing element.

In this way, first of all, a protective element is created and made available, which can be “telescoped”, so to speak, or allows a length adjustment in its longitudinal direction. As a result, flexible adaptation to different wheel diameters and other circumstances is achieved, for example, when lashing down vehicle wheels, as mentioned above by way of example. At the same time, any collisions with a tensioning device associated with the lashing or attachment means can be avoided. Since the bridging layer interposed between the two protective layers is also designed as a protective layer, the protective element according to the invention ensures the required protective effect over its entire length. Like the two protective layers, the bridging layer is also arranged between the lashing or attachment means and the object.

In fact, the protective layer and also the bridging layer ensure that the lashing or lifting means guided over it is protected from any damage, particularly in the area of edges, points or other irregularities on the objects in question. This applies over the entire length of the protective element according to the invention. In fact, the length of the protective element in question can be changed, from a minimum length in which the two protective layers directly adjoin one another up to a maximum length in which the two protective layers are at a maximum distance from one another and their distance is spanned by the bridging layer . In this case, the two protective layers, in conjunction with the bridging layer, ensure the protection of the lashing or slinging means guided over them. This is where the main advantages can be seen.

According to a further advantageous embodiment, the bridging layer is coupled to the associated one protective layer by an adhesive connection, a woven connection, a welded connection, individually or in combination. In particular, a sewn connection is used in this context. In addition, it has proven useful if the bridging layer is connected at one end to the associated protective layer and has the fixing element at its other end.

The fixing element can overlap the other protective layer together with the lashing or attachment means guided thereon. Consequently, the fixing element supports the guidance of the lashing or lifting device in relation to the protective layer. In fact, the fixing element is advantageously a fixing loop that crosses over the protective layer and the lashing or attachment means. In principle, the fixing loop can be designed so that it can be opened, for example with a Velcro or pressure fastener. As a rule, however, a closed fastening loop is used here. In this case, the fixing element can be coupled to the bridging layer again via an adhesive connection, a woven connection, a welded connection or a combination of these connections. The procedure here is particularly advantageous in that the fixing element is also coupled to the bridging layer via a sewn connection.

In this way, the bridging layer on the one hand and the associated protective layer on the other hand can be coupled to one another at one end via the sewn connection and the fixing element is connected to the other end of the bridging layer, also advantageously via a sewn connection. Such a sewn connection is particularly favorable in this context because both the two protective layers and the bridging layer

are typically formed as layers of fabric. Otherwise, the design is usually also such that the fixing element has a contrasting color and/or feel compared to the protective element and the lashing or attachment means for checking and displaying a change in length of the protective element.

This means that the fixing element ultimately indicates how "large" the length of the protective element is currently designed or what changes in length the protective element has undergone. This is because the bridging layer is generally coupled at one end to the associated first protective layer. The other end of the bridging layer has the fixing element connected to it, with the help of which the further second protective layer and the lashing or attachment means guided thereon are overlapped. The second protective layer can be displaced in the longitudinal direction relative to the first protective layer and the bridging layer coupled thereto. Since the fixing element or the fixing loop overlaps the second protective layer and the lashing or stop means guided through it, the position of the fixing element relative to the second protective layer changes as a result of its longitudinal displacement in the longitudinal direction of the protective element. This longitudinal displacement of the second protective layer relative to the fixing element can now be determined visually or haptically or both particularly easily because the fixing element is equipped with the contrasting color or different feel compared to the protective element as well as the lashing or attachment means. In this way, the protective element according to the invention can be easily and quickly checked with regard to its respective length and consequently the correct fit in relation to the object to be fixed. In principle, it is also conceivable for the second protective layer to be equipped with a stop which is connected to the fixing element

interacts in order to prevent the second protective layer from “slipping out” in relation to the fixing element or the fixing loop. However, a visual or haptic check is usually sufficient at this point, which can be carried out as described.

As already explained, it has proven useful if the two protective layers, like the bridging layer, are each designed as a fabric layer in order to provide the required protective function. At this point, plastic fabrics in particular have proven to be particularly favorable. In fact, the fabric layer is typically made of plastic threads and here in particular polyester threads. This means that the respective fabric layers are preferably polyester fabrics, which generally have polyester warp threads and polyester weft threads woven together in a tricot weave. In addition, the threads in question are usually the same in terms of their thread count.

In addition, the procedure is usually such that the two protective layers and the bridging layer each have a plastic layer. The plastic layer is advantageously arranged between the fabric layer and the object to be enclosed. In principle, the procedure can be such that the plastic layer is composed of elastomer threads woven into the fabric layer, which form ribs projecting outwards over the fabric layer towards the object. In addition to the plastic layer between the fabric layer and the object, the two protective layers, like the bridging layer, are advantageously also equipped with a sliding layer facing the lashing or attachment means. The sliding layer can again be plastic threads woven into the fabric layer, which protrude inwards over the fabric layer

form ribs. This applies independently only as an example and is by no means mandatory.

This means that the plastic layer as well as the sliding layer can also be designed differently, for example as a respective coating. However, if both the plastic layer and the sliding layer are worked with threads woven into the fabric layer, the production of the protective layer in question can be realized and implemented in a (single) weaving process, as is already the case in EP 3489 186 A1 of the applicant is described in detail.

According to a proposal with independent importance, it is provided that the two protective layers are designed as components of a respective protective tube. In contrast, the bridging layer is designed as a strip that reaches under the lashing or attachment means. This means that the bridging layer or the bridging strip is interposed between the two protective hoses in the longitudinal direction of the protective element. The procedure is typically such that the two protective hoses are composed of two tubular fabric layers coupled to one another in the longitudinal direction. This means that the respective protective hose is produced and made available by coupling the respective protective layer between the lashing or attachment means and the object with an additional fabric layer, specifically in the longitudinal direction. The protective layer and the respective cover-side fabric layer are connected to one another at their longitudinal edges. This is generally done in such a way that the two layers are each coupled to one another along the longitudinal edges, for example sewn together. It is also conceivable that at this point with one of the two protective layers at the edge realized piping is worked, which in this context as a woven-in plastic thread provides the necessary structural stability of the relevant protective hose. - The subject of the invention is also a lashing or attachment device such as a rope, belt or strap, in particular a plastic strap, which is equipped with a protective element in accordance with the configuration described above.

The invention is explained in more detail below with reference to a drawing which merely represents an exemplary embodiment; show it:

Fig. 1 the protective element according to the invention in supervision and

side view in minimum length state,

Fig. 2 shows the object of Figure 1 also in supervision and

Side view in the state of maximum length and

3 shows an application example of the protective element in connection with the load securing of vehicles.

A protective element is shown in the figures, which is used to guide a textile lashing or attachment means 1 . The textile lifting means 1 is, in the exemplary embodiment and not restrictively, a plastic fabric belt. With the aid of the textile lashing or slinging means 1, objects 2 can in principle be lifted, tensioned or lashed, as is shown in detail in the example according to FIG. In fact, the object 2 is a vehicle wheel 2 of a motor vehicle, which is lashed to a transport surface 3 using the attachment means 1 . For this purpose, the stop means 1 between two fixing points 4 of

Transport surface 3 out over the vehicle wheel 2 and applied using a clamping device 5 with force, so that the vehicle wheel 2 can be lashed to the transport surface 3 in this way.

For this purpose, the textile lashing or attachment means 1 is equipped with the protective element according to the invention, which serves to guide it over the vehicle wheel 2 in the example and prevents any damage to the lashing or attachment means 1 . In addition, the protective element ensures an increase in friction between the lashing or attachment means 1 and a tire surface of the vehicle wheel 2 .

1 and 2. The protective element actually has two protective layers 6 facing the object 2. The two protective layers 6 can be moved relative to one another in the longitudinal direction L of the protective element and are movable for this purpose coupled with each other. For this purpose, according to the invention, a bridging layer 7 is additionally arranged in the longitudinal direction L of the protective element between the two protective layers 6 and is also designed as a protective layer. The bridging layer 7 is firmly connected to one of the two protective layers 6 and overlaps the other protective layer 6 with a fixing element 8 that allows longitudinal displacement.

According to the exemplary embodiment, the bridging layer 7 is firmly connected to the protective layer 6 on the left in the exemplary embodiment, namely to the end of the relevant protective layer 6 that faces the bridging layer 7

connected, according to the exemplary embodiment via a sewn connection 9 indicated here. Via the sewn connection 9, the bridging layer 7 is connected at one end to the associated protective layer 6. The bridging layer 7 has the fixing element 8 at its other end. For this purpose, the fixing element 8 is connected to the other end of the bridging layer 7, again via a sewn connection 9.

According to the exemplary embodiment, the fixing element 8 is a fixing loop that crosses over the associated protective layer 6 and the lashing or attachment means 1 . The fixing element 8 or the fixing loop 8 has a color and/or feel that contrasts with the protective element or the two protective layers 6 and with the lashing and/or attachment means 1 . According to the exemplary embodiment, the lashing or attachment means 1 designed as a plastic fabric strip may have a blue color, whereas the respective protective layer 6 and the bridging layer 7 are each colored orange. Since the fixing element 8 or the fixing loop 8 realized at this point has a black coloration in this case, the contrasting coloring appears immediately.

The two protective layers 6 and the bridging layer 7 are each designed as a fabric layer. A polyester fabric has proven to be particularly advantageous here, as has been explained in detail in the introduction to the description. In addition, the two protective layers 6 and the bridging layer 7 each have a plastic layer 10 indicated in a schematic section in FIG

Sectional view in Fig. 1 reproduces. The plastic layer 10 consists of elastomer threads woven into the fabric layer, which form ribs projecting outwards towards the object 2 over the fabric layers.

In addition to the plastic layer 10, the fabric layer in question is also equipped with a sliding layer 11, which faces the lashing or attachment means 1. It should be emphasized once again that both protective layers 6 and the bridging layer 7 are generally constructed in the same way, i.e. both the plastic layer 10 facing the object 2 and the sliding layer 11 facing the lashing or attachment means 1, and consequently both Protective layers 6 as well as the bridging layer 7 can be produced particularly advantageously in the same way, namely in the course of a modified weaving process, as has been explained in detail in the introduction to the description.

It can be seen from the figures that the two protective layers 6 are designed as components of a respective protective tube 6 , 12 . In contrast, the bridging layer 7 is designed as a strip or bridging strip 7 reaching under the lashing or attachment means 1 . The two protective hoses 6, 12 are composed of two fabric layers 6, 12 coupled to one another in the longitudinal direction L like a hose. The two fabric layers 6, 12 are coupled to one another at the edges, for example sewn together in the longitudinal direction with the interposition of a welt 13 additionally realized in the sectional representation according to FIG.

The fabric layer 6 is - as described - equipped on the inside with the sliding layer 11 and on the outside with the plastic layer 10 . The same applies to the bridging layer or the bridging strip 7. In contrast, the further fabric layer 12 for the realization of the protective hose 6, 12 is usually an uncoated plastic fabric which, like the two protective layers 6 and the bridging layer 7, also and after the Embodiment may be colored orange. As a result, the fixing element or the fixing loop 8 provides reliable information about the respective state of the protective element or its associated length, as can be understood immediately by comparing FIGS.

In fact, the protective element according to the invention is shown and reproduced in FIG. 1 in its minimum expansion or length Imin in the longitudinal direction L. In this case, the two protective layers 6 and consequently also the corresponding protective hoses 6, 12 abut each other with practically no spacing. The fixing loop 8 or the fixing element 8 characterizing the length adjustment is in its right-hand end position.

If, on the other hand, the protective element, as shown in Fig. 2, assumes its maximum length l _max in the longitudinal direction L, this corresponds to a functional position in which the right-hand protective layer 6 or the associated protective tube 6, 12 is opposite to the left-hand protective layer 6 or the protective tube 6, 12 has a maximum distance. In fact, the right-hand protective layer 6 and with it the protective hose 6, 12, guided through the fixing element or the fixing loop 8 - starting from the functional position in Fig. 1 - can be moved to the right until the position corresponds to the representation in Fig. 2 is reached. Now the fixing element 8 has its left End positions compared to the right protective layer 6 and the local protective tube 6, 12 reached. In this context, an additional stop (not shown) may ensure that the right-hand protective hose 6, 12 does not “slip” out of the fixing loop or the fixing element 8.

Claims

Patent Claims:

1. Protective element for guiding textile lashing or slinging means (1) for lifting, tensioning or lashing objects (2), with at least two protective layers (6) facing the object (2), both protective layers (6) in the longitudinal direction (L) of the protective element are coupled to one another so that they can move relative to one another, d a r c h e k e n n z e i c h n e t that a bridging layer (7) is additionally arranged in the longitudinal direction (L) of the protective element between the two protective layers (6) and is also designed as a protective layer, with the bridging layer (7) having one of the both protective layers (6) are firmly connected and the other protective layer (6) overlaps with a fixing element (8) allowing longitudinal displacement.

2. Element according to claim 1, characterized in that the bridging layer (7) is coupled to the associated protective layer (6) and/or the fixing element (8) by an adhesive connection, woven connection, welded connection and in particular a sewn connection, individually or in combination .

3. Element according to Claim 1 or 2, characterized in that the bridging layer (7) is connected at one end to the associated protective layer (6) and has the fixing element (8) at its other end.

4. Element according to any one of claims 1 to 3, characterized in that the fixing element (8) engages over the other protective layer (6) together with the lashing or stop means (1) guided thereon.

5. Element according to claim 4, characterized in that the fixing element (8) is designed as the protective layer (6) and the lashing or attachment means (1) cross-over fixing loop (8).

6. Element according to any one of claims 1 to 5, characterized in that the fixing element (8) has a contrasting color compared to the two protective layers (6) and the bridging layer (7) and the lashing or attachment means (1) and/or Has haptic to control and display a change in length of the protective element.

7. Element according to any one of claims 1 to 6, characterized in that the two protective layers (6) and the bridging layer (7) are each formed as a fabric layer.

8. Element according to any one of claims 1 to 7, characterized in that the two protective layers (6) and the bridging layer (7) each have a plastic layer (10).

9. Element according to claim 8, characterized in that the plastic layer (10) is arranged between the fabric layer and the object (2).

10. Element according to claim 9, characterized in that the plastic layer (10) consists of elastomer threads woven into the fabric layer

composed, which form ribs protruding over the fabric layer outwards towards the object (2).

11. Element according to any one of claims 1 to 10, characterized in that the two protective layers (6) as well as the bridging layer (7) are equipped with a sliding layer (11) facing the lashing or stop means (1).

12. Element according to claim 11, characterized in that the sliding layer (11) consists of plastic threads woven into the fabric layer, which form ribs protruding inwards over the fabric layer.

13. Element according to any one of claims 1 to 12, characterized in that the two protective layers (6) are designed as components of a respective protective tube (6, 12), while the bridging layer (7) as the lashing or stop means (1) reaches under Bridging strip (7) is designed.

14. Element according to claim 13, characterized in that the two protective tubes (6, 12) are composed of two fabric layers (6, 12) coupled to one another like a tube in the longitudinal direction (L).

15. Lashing or attachment means (1), such as a rope, belt or strap, in particular a plastic strap, equipped with a protective element designed according to claims 1 to 14.