EP2123587B1 - Device for lifting and moving a drum containing reels of feedwire - Google Patents

Abstract

The device has a flexible envelope (1) with a bottom (2a), a peripheral wall (3) and an opening (2b) through which a cardboard drum is introduced at an interior of the envelope. Two lifting bands (4, 5) are fixed on the envelope, and form hooking buckles (4a, 5a) at a side of the opening, where the drum contains reels of feedwires. The lifting bands and the envelope are made of natural or synthetic woven fabric material such as polypropylene. A maintaining unit (7) e.g. Velcro(RTM: hook and loop fastener), maintains the envelope around the drum.

Description

The present invention relates to a device for lifting and moving barrel, in particular cylindrical or square shaped barrel containing a coil of welding wire.

It is usual to package in barrels, welding wire coils used in arc welding processes with fusible wires, such as MIG / MAG, submerged arc ... so as to protect the coil during its transport since for example its place of manufacture to its place of use.

The drums used for this purpose are usually of cylindrical shape but may also be of polygonal shape, especially square. There are also "composite" drums, that is to say formed of a cylindrical drum containing one (or more) coil of welding wire, itself inserted into an outer square drum.

Typically, a cylindrical barrel of this type at a height of the order of 70 to 110 cm, a diameter of the order of 50 to 60 cm, and a weight greater than several tens of kilograms, typically between 100 and 500 kg, in general of at least 200 kg.

These barrels are usually made of cardboard, polymer or the like.

Because of their high weight, a practical problem is to be able to lift and move these drums easily, for example by means of a crane or the like.

It has been proposed a solution of riveting handles or the like in the cardboard forming the outer peripheral wall of the barrel, to which handles can be hooked hooks connected to chains or ropes, themselves hooked to the hook of a crane or the like so as to lift the barrel from the ground and move it.

However, this solution is not ideal because, in practice, we often see pulling handles because of the high weight of the drum. The heavier the drum is, the more frequent are the pickings.

Another known solution is to arrange orifices at diametrically opposite sites of the cardboard sidewall of the drum, to insert a lifting band into one of the orifices, to pass this band under the spool of thread and to to emerge from the other orifice so as to be able to lift the assembly by means of the part of this band situated outside the shaft and which can be hooked to a crane hook or the like, for example the device disclosed in the document FR2521961A

However, again, the solution is not ideal industrially because we often see tearing of the wall of the carton at the holes through which the lifting belt passes, because of the high weight of the drum and the coil that it contains.

An object of the invention is therefore to provide an improved device for lifting and moving barrel containing one or more coils of welding wire, in particular for lifting drums of different shapes, including drums of cylindrical or square shape .

Another object of the invention is to provide a device for lifting and moving barrel does not lead to deterioration of the barrel wall, even when the weight of the drum is important.

Yet another object of the invention is to provide a device for lifting and moving a drum for lifting and moving, in particular by means of a crane hook or the like, coming to connect to said device of the invention, drums whose weight exceeds 100 kg and is typically between 200 and 500 kg.

The solution of the invention relates to a device for lifting and / or moving a drum comprising a flexible envelope comprising a bottom, a peripheral wall and an opening through which a drum can be introduced inside the envelope, which envelope is designed and dimensioned to receive said barrel, and at least two lifting bands attached to the envelope forming latching loops on the side of the opening.

• les bandes de levage forment des boucles d'accrochage qui se croisent du côté de l'ouverture.
• les bandes de levage forment des boucles d'accrochage qui passent à travers un manchon coulissant.
• les deux bandes de levage s'étendent le long de la paroi périphérique de l'enveloppe, de préférence jusqu'au fond.
• les bandes de levage s'étendent le long de la paroi périphérique de l'enveloppe jusqu'au fond et se croisent au niveau dudit fond, de préférence les bandes de levage sont fixées solidairement à la paroi périphérique et au fond.
• les bandes de levage et l'enveloppe sont réalisées en matière souple et déformable suffisamment résistante pour permettre le levage d'un fût d'un poids d'au moins 20 kg, de préférence au moins 100 kg, de préférence encore au moins 200 kg.
• l'enveloppe est conçue et dimensionnée pour recevoir un fût de forme cylindrique ou de section polygonale, en particulier de section carrée.
• les deux bandes de levage et l'enveloppe sont réalisées en un matériau naturel ou synthétique tissé, de préférence en polypropylène.
• l'enveloppe comporte des moyens de maintien apte à coopérer avec le fût contenu dans l'enveloppe de manière à permettre un maintien en position de l'enveloppe autour dudit fût.
• l'enveloppe comporte 2, 3 ou 4 bandes de levage.
• l'enveloppe contient un fût contenant au moins une bobine de fil de soudage.

As the case may be, the device of the invention may comprise one or more of the following characteristics:

• the lifting strips form hooking loops which intersect on the side of the opening.
• the lifting strips form hooking loops which pass through a sliding sleeve.
• the two lifting belts extend along the peripheral wall of the envelope, preferably to the bottom.
• the lifting strips extend along the peripheral wall of the casing to the bottom and intersect at said bottom, preferably the lifting strips are fixed integrally to the peripheral wall and the bottom.
• the lifting strips and the casing are made of flexible and deformable material sufficiently strong to allow the lifting of a drum with a weight of at least 20 kg, preferably at least 100 kg, more preferably at least 200 kg .
• the casing is designed and dimensioned to receive a cylinder-shaped barrel or polygonal section, in particular of square section.
• the two lifting belts and the envelope are made of a natural or synthetic woven material, preferably of polypropylene.
• the casing comprises holding means adapted to cooperate with the drum contained in the casing so as to allow the casing to remain in position around said cask.
• the envelope has 2, 3 or 4 lifting bands.
• the casing contains a barrel containing at least one coil of welding wire.

The invention also relates to the use of a device according to one of the preceding claims for lifting and / or moving a drum containing at least one coil of welding wire, in which the formed assembly is lifted and / or moved. per casing containing said barrel by means of a hook of a hoist which fits into the loops.

The present invention will be better understood from the following illustrative description with reference to the attached figure schematically a drum lifting device according to the invention.

More specifically, the Figure shows a device for lifting and moving a drum, for example made of cardboard, containing one (or more) welding coil formed of a flexible envelope 1, resistant and deformable comprising a bottom 2a on which comes resting the barrel, a peripheral wall 3 intended to surround at least a portion of the outer periphery of the barrel, and an opening 2b through which the barrel can be introduced inside the casing 1, that is to say say positioned on the bottom 2a and between the peripheral wall 3.

The peripheral wall 3 may for example be cylindrical. In that, the bottom 2a is located and fixed to one (lower end 3b) of the ends 3a, 3b of the cylinder 3, while the opening 2b constitutes the peripheral edge of the other end (upper end 3a) of the cylindrical 3.

The casing 1 is designed and dimensioned to receive such a barrel, typically it has dimensions slightly greater than the external dimensions of the barrel it must contain.

Two lifting strips 4, 5 are attached to the casing 1 while forming hooking loops 4a, 5a on the side of the opening 2b, that is to say above the upper edge 3a, to which can come hook one to a crane hook or similar. Preferably, the two hooking loops 4a, 5a intersect on the side of the opening 2b, that is to say above the casing 1.

Advantageously, they pass through a sliding sleeve 6, metal, plastic, cardboard or any other suitable material, which allows to tighten the strips 4, 5 of each other so as to hang easily and both the hook of a hoist such as a crane or the like.

In order to ensure a lifting of the casing / casing assembly, the two lifting strips 4, 5 extend along the inner peripheral wall 3 of the casing 1 and up to the bottom 2. Preferably, they intersect at said bottom 2 and are fixed integrally to the peripheral wall 3 and the bottom 2.

When the drum to be lifted is positioned in the envelope 1, it is based not only on the bottom 2 but also on the strips 4, 5 especially where they intersect.

The two lifting strips 4, 5 and the casing 1 are made of flexible and deformable material but sufficiently strong to allow the lifting of a barrel of a weight of at least 100 kg, preferably at least 200 kg.

The material may be natural or synthetic and is preferably a woven material, preferably fabric or the like.

As already stated, the casing 1 is designed and dimensioned to receive a cylindrical or polygonal welding wire coil drum, in particular of square section.

In addition, the envelope 1 comprises holding means 7, for example a strip of self-gripping material, such as for example a Velcro strip, at its upper edge 3a, designed for and capable of cooperating with the drum contained in the casing 1 so as to allow holding in position of the casing 1 around said barrel, when the assembly is placed on the ground. In other words, the holding means 7 serve to prevent the casing 1 from sliding along the wall of the barrel.

The establishment of the barrel in the casing 1 is done before insertion of the bobbin (s) of thread into the barrel.

Claims (10)

1. Device for lifting and/or moving a drum comprising:

   - a flexible wrapper (1) comprising a bottom (2a), a peripheral wall (3) and an opening (2b) via which a drum can be introduced into the wrapper (1) which is designed and sized to accept the said drum, and

   - at least two lifting straps (4, 5) attached to the wrapper (1) forming hooking loops (4a, 5a) at the same end of the opening (2b),

   characterized in that the lifting straps (4, 5) form hooking loops (4a, 5a) which cross over one another at the same end of the opening (2b), the wrapper (1) contains a drum containing at least one reel of feedwire, and the lifting straps (4, 5) form hooking loops (4a, 5a) which pass through a sliding sleeve (6).
2. Device according to the preceding claim, characterized in that the lifting straps (4, 5) extend along the peripheral wall (3) of the wrapper (1).
3. Device according to one of the preceding claims, characterized in that the lifting straps (4, 5) extend along the peripheral wall (3) and as far as the bottom (2) of the wrapper (1).
4. Device according to one of the preceding claims, characterized in that the lifting straps (4, 5) extend along the peripheral wall (3) of the wrapper (1) as far as the bottom (2) and cross one another at the said bottom (2); for preference the lifting straps (4, 5) are fixed firmly to the peripheral wall (3) and to the bottom (2).
5. Device according to one of the preceding claims, characterized in that the lifting straps (4, 5) and the wrapper (1) are made of a flexible and deformable material that is strong enough to allow a drum weighing at least 20 kg, preferably at least 100 kg, to be lifted.
6. Device according to one of the preceding claims, characterized in that the wrapper (1) is designed and sized to accept a drum of cylindrical shape or of polygonal cross section, particularly of square cross section.
7. Device according to one of the preceding claims, characterized in that the lifting straps (4, 5) and the wrapper (1) are made of a woven natural or synthetic material, preferably polypropylene.
8. Device according to one of the preceding claims, characterized in that the wrapper (1) comprises retaining means (7) able to collaborate with the drum contained in the wrapper so as to keep the wrapper (1) in position around the said drum.
9. Device according to one of the preceding claims, characterized in that the wrapper (1) comprises 2, 3 or 4 lifting straps.
10. Use of a device according to one of the preceding claims for lifting and/or moving a drum containing at least one reel of feedwire, in which the assembly formed by the wrapper (1) containing the said drum is lifted and/or moved around on a hook of lifting gear, which hook is inserted through the loops (4, 5).

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