EP0699593A2 - Lasting device for bundling and firm packaging of stackable items - Google Patents

Abstract

The lashing device is for bundling and firm packing of stackable objects, such as wooden sheet plates or similar, and comprises a lashing strap (1) with a tightening device (3). It has at least one base component (4) with a locating surface for the stacked objects (5). The base component has at least one opening (42) with closed cross-section, through which the lashing strap runs. The lashing strap forms a closed loop and has two ends which are connected unreleasably with the tightening device. The opening extends through the complete base component along its longitudinal axis and has a rectangular cross-section, the width of which is at least equal to that of the lashing strap.

Description

The invention relates to a lashing device for bundling and firm packing of stackable objects, such as panels, in particular wood-ply panels or the like.

For transporting and storing objects stacked or stacked on top of one another, such as wood-ply boards or the like, these must first be firmly bundled together and secondly protected against damage, in particular at the edges. So that a stack of panels can be picked up by forklift trucks or another lifting device, two or more supports are to be aligned parallel and spaced apart and the panels are to be stacked on top of them. The underlays create a clear height between the floor and the lowest stacked object, here the plate, so that a forklift can move the carrying tines under the lowest plate and pick up the entire stack. For firm bundling of the stacked panels, a steel band has usually been wrapped around the bundle of panels for each base timber, tensioned and then permanently connected to its free end, the base woods between the lowest plate and the steel band. In order to avoid damaging the edges of the plates, in particular the lowermost and uppermost plates, an edge protection element in the form of an angle piece can optionally be clamped or pushed in between the respective plate and the steel strip. The underlying wood can have a length such that the steel band wrapped around the plates does not lie directly against the side edges of the plates.

Such bundling and packaging of the stacked plates is disadvantageous in that the steel strips have to be cut apart in order to be able to remove the plates, which results in a large amount of waste of steel strips and causes considerable costs. In addition, when the panels are repacked into a stack, the necessary underlays are often no longer available or only in small numbers.

Furthermore, formwork panels, wooden beams or the like are often to be transported from one place to another, especially on construction sites. For example, ceilings are formed from the top of the ceiling with the help of slab formwork panels, but are removed from the underside. Therefore, the slab formwork panels have to be transported several times, which is also done with a crane. As is known, the plates are only held by crane loops, but not firmly bundled. In order to enable the crane loops to be put around, stacking pads have to be searched again and again, which can cause waiting times for personnel and the crane. In addition, the security against slipping down individual plates or the like when lifting with the known means only guaranteed to a very small extent, since the objects lie loosely against one another.

The technical problem on which the invention is based is to create a reusable lashing device for bundling stacked plates or supports lying on and against one another or the like.

This technical problem is solved with a lashing device for bundling and firmly packing stackable objects, such as plates, in particular wood-ply plates or the like, which has a lashing strap provided with a tensioning device and comprises at least one support element with a support surface for the stacked objects, the support element has at least one closed cross-section through which the lashing strap runs. Closed openings are understood here to mean an opening with a closed, continuous peripheral edge in cross section.

The invention is based on the idea of connecting a lashing strap known per se, which can be designed in various ways, which will be explained further below, with a support element which is suitable for transport and storage in such a way that this support element can no longer be separated from the lashing strap is. For the first time, the lashing device according to the invention creates a simple, inexpensive and at the same time reusable device that is suitable for the entire transport chain from the manufacturer to the construction site and back, and for use on the construction site itself, for example for bundling concrete formwork panels, and overall represents a unit. Furthermore, the steel strips saved, which eliminates the disposal problems. In addition, the search for underlays is eliminated, since at least one underlay element is captively arranged on each lashing device according to the invention.

As already mentioned, when moving panels, wooden beams or the like, it is known that often only crane loops are used, which can prevent individual goods from sliding down only very slightly when being lifted. In contrast, safety at the construction site can be significantly increased if the objects, such as plates, wooden beams or the like, are additionally firmly bundled on the end faces of the bundles by means of the lashing device according to the invention.

Furthermore, on construction sites, either pallets or containers are often used for the purpose of lifting elongated objects such as plates or the like. These would no longer be required when bundling with the lashing device according to the invention, and it would thus be possible to save considerable costs than, for example, when using containers. Because inexpensive pallets are not suitable for safety reasons with regard to the lack of bundling. Furthermore, the use of a lashing device according to the invention requires significantly less space when not in use at the construction site, and it is much easier to transport to the next place of use due to the lower dead weight and the smaller volume with regard to the use of pallets, containers or the like. Compared to the known containers, lashing devices according to the invention can also be adapted to any stack lengths.

A very simple and inexpensive solution of a lashing device according to the invention is achieved in that the lashing strap in one piece, i.e. forming a closed loop is formed. In this closed loop the tensioning device is integrated, which can consist, for example, of a commercially available, lockable ratchet, winding device or the like. Characterized in that the lashing strap is formed in one piece and the support element has a closed opening through which the lashing strap runs, the support element is permanently connected to the lashing strap, this type of attachment of the support element on the lashing strap allows a mutual displacement, so that the lashing strap with the depending on the height of the plate stack relative to the support element can be moved in the desired manner, for example to move the tensioning device to a position that is well suited for tensioning. The captive arrangement of the support element can be caused either by the one-piece lashing strap or by a free end of the belt having a larger end part than the opening in the support element.

Another very simple embodiment of the lashing device according to the invention is given in that the lashing strap is connected, in particular articulatedly, to two strap ends on a tensioning device, such as a ratchet or the like, whereby the lashing strap and tensioning device in turn form a closed loop into which the Underlay element is threaded.

Since the opening in the support element extends over the entire length parallel to the longitudinal axis, the lashing strap is optimally guided in the support element so that when the lashing strap is tensioned by means of the tensioning device, if the entire lashing device is wrapped around the stacked objects, lies flush against the lowest object.

Advantageously, the opening in the support element is essentially rectangular in cross section, the width of which is at least equal to the width of the lashing strap, so that the lashing strap neither crosses nor is pushed laterally together in the opening and is stretched cleanly when tensioned and thus can optimally absorb and transmit the tensile forces .

The support element consists of an elongated body which has a height such that a clear height remains between the support surface and the opposite base, which enables the stacked objects to be picked up by means of a lifting device, such as that of a forklift or the like, and the opening in the support element extends parallel to the support surface, so the support element is captively connected to the lashing strap in an optimal manner and at the same time the optimal application of the support element is achieved in a tensioned state.

If the underlay element has vertical leg pieces on its narrow sides that protrude from the support surface, edge protection is created at the same time as the underlay element, since the lashing strap runs on the outer sides of the leg pieces and not directly over the edges of the sometimes sensitive plates.

It is particularly advantageous to design the support element in such a way that each of the legs is provided with an opening which is closed in cross section, through which the lashing strap runs and is tensioned State extends in a recess of the support surface of the support element. This means that there is no need for expensive production of a continuous opening in a wood serving as a base.

Furthermore, it would also be possible to pull the lashing strap through the closed opening and then sew it back to itself in the area of these legs, so that the lashing strap and each closed opening form an inseparable loop connection in the legs. In a further advantageous exemplary embodiment, one of these loop connections could be replaced by a detachable hook which enables the lashing strap to be thrown over the stack and only then hooked into the opposite end of the support element.

For manufacturing reasons, it is advantageous to create the underlay element made of steel, aluminum, layered plywood or solid wood with or without partial sheet metal protection on the outer sides of the underlay element, depending on the conditions and area of use.

In the reusable lashing device according to the invention, at least one upper, in particular a U-shaped, edge protection element can also advantageously be fastened to the lashing strap by means of at least one tab forming a closed opening in such a way that the lashing strap runs on the top of the edge protection element and vertical legs of the edge protection element are present , on the outside of which the lashing strap runs. This protects the uppermost object from being pressed in by the tensioning device and the opposite edges from being pressed in by the lashing strap when tensioning. As already mentioned, the tabs form closed ones Openings through which the lashing strap is threaded, which prevents removal of the edge protection element. Thus, the edge protection element and the lashing strap are also inextricably linked, but can be moved relative to one another.

A very simple design of the edge protection element is provided in that the upper edge protection element has two spaced-apart tabs which are spaced apart on the outside of the edge protection element and each form a closed opening, preferably a rectangular opening through which the lashing strap runs and the tensioning device is arranged between the two tabs. This prevents the edge protection element of the tensioning device from lying directly on the top plate, possibly causing damage, and there is no need to align the lashing strap on the edge protection element.

Depending on the manufacturing conditions and requirements, it is advantageous to manufacture the edge protection element from a U-shaped steel sheet, plastic part or wood.

Particularly advantageous is the design of the upper edge protection element as a flexible belt strap, which is arranged along the lashing strap and has a plurality of closed incisions transversely to the longitudinal direction of the strap, through which the lashing strap is threaded, the lashing strap running on the outside of the belt strap and the tensioning device on it Outside of the webbing is arranged. The formation of the edge protection element as a flexible belt strap, such as a strong textile strap, tubular strap or the like, further facilitates the application or folding of the lashing strap around a stack of plates, however at the same time the edge protection and the protection against indentations on the surface of the uppermost object, here the plate, is guaranteed. For this purpose, the strap has a length so that the strap protrudes on both sides of the stack of plates and the lashing strap runs on the outside of the "legs" formed thereby.

It should be emphasized that conventional and generally known ratchets, winding devices and the like can be used as the tensioning device. Furthermore, any flexible textile, cord, steel or chain strap or the like can be used as a lashing strap.

Finally, surprisingly, the loss of lashing straps with a captive pad element is largely avoided, since the entire lashing device now has at least a larger pack size - depending on the length of the pad element - which does not prevent the lashing strap from being pulled out of the pad element without destroying the strap. An inconspicuous taking of the lashing strap is thus prevented.

Finally, it should also be explained that bundling or stacking of objects also means stacking plates side by side, that is to say stacking plates upright.

Fig. 1

eine perspektivische Teilansicht eines Plattenstapels mit einer beispielhaft um den Plattenstapel herumgelegten, erfindungsgemäßem Verzurrvorrichtung mit einem Zurrgurt, der mit einem daran unverlierbar angebrachten Unterlageelement versehen ist,

Fig. 2

eine Seitenansicht des um einen Plattenstapel herumgelegten Zurrgurts nach Fig. 1, bei der in teilweise aufgebrochener Darstellung die Durchführung des Zurrgurts in dem Unterlageelement gezeigt ist, und

Fig. 3

eine vergrößerte Querschnittsansicht eines Unterlageelements, wie es bei einer erfindungsgemäßen Verzurrvorrichtung Verwendung findet.

In the following, an embodiment is described and carried out in more detail for further explanation and for a better understanding of the invention with reference to the accompanying drawings. It shows:

Fig. 1

2 shows a perspective partial view of a plate stack with an inventive lashing device with a lashing strap, which is placed around the plate stack by way of example and is provided with a support element attached captively to it,

Fig. 2

a side view of the lashing strap wrapped around a plate stack according to FIG. 1, in which the implementation of the lashing strap in the base element is shown in a partially broken-away view, and

Fig. 3

an enlarged cross-sectional view of a support element, as used in a lashing device according to the invention.

Fig. 1 shows a plate stack in which a plurality of plates 5 are stacked on top of one another. A one-piece lashing strap 1 is placed around the plate stack. The lashing strap 1 has two strap ends which are non-detachably connected by a ratchet 3. The ratchet 3 is constructed in a known manner. This means that a belt end can be wound up by actuating a lever of the ratchet 3 about an axis of rotation which extends transversely to the longitudinal axis of the belt, so that the length of the belt or the loop formed therefrom can be varied. The ratchet 3 can be fixed in the desired length so that an extension of the belt in the fixed position is no longer possible and the lashing strap 1 remains tensioned.

The underside of the lowermost plate 5 of the plate stack lies on a support element 4 which extends at least to the opposite narrow sides of the plate 5. In each case on the opposite narrow sides of the base element 4, perpendicular to the support surface provided for the plate 5 of the base element 4, each have legs 41 which essentially bear on the adjacent narrow sides of the plate 5 or are at a short distance. In other words, the support element 4 has a U-shaped recess in the side view, in which the plate 5 with its two opposite narrow sides and the underside can be fitted.

A continuous opening 42 42 closed in cross section extends through the base element 4 from one narrow side of the base element 4 to the other. The opening 42 has a clear, preferably rectangular cross-section, which allows the lashing strap 1 to be displaced.

On the upper side of the uppermost plate 5 of the plate stack there is an edge protection element 2 which is U-shaped in side view, with two legs 22 resting essentially on two opposite narrow sides of the plate 5. That is, the U-shaped edge protection element 2 consists of a plate 5 extending from one narrow side to the opposite narrow side and the legs 22 perpendicular thereto, so that the upper edges of the plate 5 are partially encompassed by the edge protection element 2. Furthermore, the edge protection element 2 comprises two tabs or Loops 21, which are spaced apart from one another on the upper side of the edge protection element 2 and each form two closed openings 42 through the upper side of the edge protection element 2, through which the lashing strap 1 runs. As a result, the lashing strap 1 is captively connected to the edge protection element 2.

The ratchet 3 rests on the edge protection element 2 on the upper side opposite the adjacent underside of the edge protection element 2. The lashing strap 1 extends on the same upper side of the edge protection element 2 as the ratchet 3 and extends over the outer sides of the legs 22 to the base element 4 through the opening 42 and finally to the other end of the ratchet 3.

From the side view shown in Fig. 2, this attachment of the base element 4 and the edge protection element 2 on the lashing strap 1 is clearly shown again. In this view, the plate stack is only partially shown as a stack consisting of individual plate elements 5 for better clarity. Furthermore, the through opening 42 in the base element 4 can be seen even better in the partially broken-out representation. That is, the opening 42 runs through the base element 4 along the longitudinal axis of the base element 4 from one narrow side to the other, and the lashing strap 1 runs around the legs 41 of the base element 4 in this opening 42 through the base element 4.

The support element 4 lies on the floor 10. At least two support elements 4 are provided for a plate stack. Due to the height of the base elements 4, which are on two opposite sides of the stack of plates 5 rest on the underside of a plate 5, a clear height is created, into which, for example, a forklift can move with its supporting tines and lift the stack of plates.

To remove the lashing strap 1, the ratchet 3 is fixed in the usual way and the lashing strap 1 is unwound, so that the lashing strap 1 with the edge protection element 2 can be pulled out laterally over the end faces of the plate stack or plates 5. Not only does the edge protection element 2 remain captive on the lashing strap 1 through the passage in the tabs 21. By lifting the plate stack 5 away from the documents, the individual lashing straps 1 with the support elements 4 arranged thereon can now be reused as a unit, since the support elements 4 are also captive on Lashing strap 1 are arranged by threading the lashing strap 1 through the opening 42 in the support element 4.

This inventive arrangement of the lashing strap 1 and the captively attached elements 2 and 4 also creates a larger pack size, so that a simple and unobtrusive carrying of a lashing strap 1 is no longer possible.

The cross-sectional view shown in FIG. 3 clearly shows the structure of a base element 4. The base element 4 consists of an extruded aluminum profile which has a substantially rectangular cross section. The extruded profile is hollow on the inside, a partition wall forming the closed opening 42 inside the hollow profile. The closed opening 42 has an inner cross section that has no sharp edges.

The width of the opening 42 is dimensioned such that the lashing strap 1, not shown here, can be moved therein without any problems. Due to the rounded design of the inner cross section, no damage to the lashing strap 1 can occur during lashing.

Claims (13)

Lashing device for bundling and firmly packing stackable objects, such as plates, in particular wood-ply plates or the like, with: - A lashing strap (1) provided with a tensioning device (3), and - At least one support element (4) with a support surface for the stacked objects (5), the support element (4) having at least one opening (42) which is closed in cross section and through which the lashing strap (1) runs. Lashing device according to claim 1, characterized in that the lashing strap (1) forms a closed loop. Lashing device according to claim 1, characterized in that the lashing strap (1) has two strap ends which are non-detachably connected to the tensioning device (3). Lashing device according to claim 1, characterized in that the opening (42) extends through the entire support element (4) along its longitudinal axis. Lashing device according to claim 1 or 4, characterized in that the opening (42) in the base element (4) essentially one Has a rectangular cross section, the width of which is at least equal to the width of the lashing strap (1). Lashing device according to one or more of the preceding claims, characterized in that the support element (4) consists of an elongate body which has a height, so that a clear height remains between the support surface (10) and an opposite standing surface, which allows the stacked objects (5) by means of a hoist, such as that of a forklift or the like, and the opening (42) in the base element (4) extends parallel to the support surface. Lashing device according to one or more of the preceding claims, characterized in that the support element (4) has on its narrow sides leg pieces (41) perpendicular to the support surface. Lashing device according to claim 7, characterized in that each of the legs (41) is provided with an opening (42) which is closed in cross section, through which the lashing strap (1) is passed and the lashing strap (1) in a recess in the support surface of the support element (4) runs. Lashing device according to one or more of claims 1 to 8, characterized in that the base element (4) consists of steel, aluminum, layered plywood or solid wood with or without partial sheet metal protection on the outer sides of the base element (4). Lashing device according to claim 1, characterized in that at least one upper, in particular a U-shaped edge protection element (2) is fastened to the lashing strap (1) by means of closed tabs (21) such that the lashing strap (1) is on the top of the edge protection element (2 ) and vertical legs (22) of the edge protection element (2) are present, on the outside of which the lashing strap (1) runs. Lashing device according to claim 10, characterized in that the upper edge protection has two spaced apart tabs (21) which are spaced apart on the outside of the edge protection element (2) and each have a closed opening (42), preferably a rectangular opening (42) , form, through which the lashing strap (1) passes and the tensioning device (3) is arranged between the two tabs (21). Lashing device according to one of claims 10 or 11, characterized in that the edge protection element (2) consists of a U-shaped steel sheet, plastic part or wood. Lashing device according to claim 10, characterized in that the upper edge protection element (2) consists of a belt strap which is arranged along the lashing strap (1) and has a plurality of incisions transversely to the longitudinal direction of the strap through which the lashing strap (1) is threaded, which Lashing strap (1) runs on the outside of the belt and the tensioning device (3) is arranged on the outside of the belt.

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