FR3052154A1 - DEVICE FOR CONVEYING A WIRE CROWN OR ELECTRIC CABLE - Google Patents

Abstract

The invention relates to a device for unwinding a ring (1) of electric wire or cable wrapped in a film (2) comprising an upper central opening (3) through which the wire or the cable can be unwound, a device comprising a device for passing and retaining the free end of the wire, consisting of a tongue for traversing diametrically said central orifice (3) and having a passage opening (6) of the product to ensure its retention. According to the invention, said tongue consists solely of a strip (5) intended to be secured directly to said film (2).

Description

DEVICE FOR RUNNING A CROWN OF FL L OR OF

The invention relates to a device for unwinding a ring of wire or electric cable.

Conventionally, such a coil of electric wire is only packaged in a plastic film, for example polyethylene, heat shrunk around the wire ring, especially when the wire is sufficiently rigid to ensure the mechanical strength of the ring. This film is then pierced with an upper central orifice through which the wire can be unwound.

Patent document EP 2,279,139 discloses a device for retaining and unwinding a wire ring which comprises a casing of cylindrical shape of octagonal base in which is placed the ring of wire and having an upper central orifice through which can be unrolled the thread.

This upper central orifice comprises a device for passing and retaining the free end of the wire, consisting of a tongue of the housing passing diametrically through the central orifice and having a passage opening of the wire ensuring the retention of the wire. This device also comprises a film covering the housing. While it can be justified when the wire is particularly flexible, in order to keep the wire crown in its cylindrical shape, this thermoformed polyethyl terephthalate housing is however a part that is relatively complex and expensive to manufacture. The invention solves this problem by providing a device for unwinding a wire crown particularly simple in its manufacture and use.

To do this, the invention proposes a device for unwinding a wire or electric cable crown wrapped in a film comprising an upper central orifice through which the wire may be unwound, a device comprising a device for passing and retaining the wire. free end of the wire, consisting of a tongue for traversing diametrically said central orifice and having a passage opening for the wire to ensure its retention, characterized in that said tongue consists solely of a strip intended to be secured directly on said film.

The wire of the crown can be unwound and unwound without risk of becoming entangled by looping.

This tab has the advantage of also serving as a gripping handle of the device.

According to a preferred embodiment of the invention, said strip is self-adhesive on a portion of its lower face intended to be secured to said film.

Advantageously, said band is made of flexible material.

Preferably, said strip is made of plastic.

Advantageously, said strip consists of a strip of transparent adhesive tape bearing on its adhesive side a smaller opaque strip centered.

Preferably, said passage opening consists of a centered cut of said strip. The invention also relates to the use of such a device for unfolding a ring of wire or electric cable, comprising piercing said film to form said upper central orifice, characterized in that said strip is secured to said film diametrically said central orifice and the free end of the wire is introduced into said passage and retaining device. The invention also relates to the use of such a device for simultaneous unwinding of n wire rings or electrical cable consisting in piercing said film of each ring to form said upper central orifice, characterized in that - said film of each ring is also pierced on the underside of each ring, - a said band is secured to said film of each ring diametrically to said central orifice and the free end of the wire of this ring is introduced into said passage and retaining device, - the n rings are stacked one on the other and the free end of the wire of each ring is introduced into said device for passage and retaining the upper crowns. The invention is described below in more detail with the aid of a figure representing a preferred embodiment of the invention.

Figure 1 is a perspective view of an unwinding device according to the invention equipping a wire crown.

Figure 2A is a top view of the unwinding device according to a first variant.

Figure 2B is a top view of the unwinding device according to a second variant.

Figure 3 is a perspective view of a flow device according to the invention equipping three piled wire rings.

As shown in FIG. 1, a ring of electric wire 1 is conventionally packaged in a transparent film 2, for example made of polyethylene, in which an upper central orifice 3 has been made to access the wire.

An unwinding device according to the invention comprises a device for passing and retaining the free end 4 of the wire, consisting of a tongue intended to traverse the central orifice 3 diametrically and having a passage opening 6 for the wire for ensure its guidance and restraint.

As can be seen more clearly in FIG. 2A, the tongue 5 consists solely of a flexible plastic strip 5 intended to be secured directly to the film 2.

This band 5 is self-adhesive on a portion of its lower face intended to be secured to the film. As shown, it consists of a strip of transparent adhesive tape 5 'bearing on its adhesive side a smaller opaque centered strip 5 "can carry reference or commercial indications and in the middle of which is cut the passage opening 6 cable. The opaque strip 5 "can also be of different colors, to facilitate the identification of the wire or cable, for example according to its section or use.

Sue Figure 2A, the passage opening 6 consists of a circular center cut. It can also be shaped of several star-shaped radial cutting lines as shown in FIG. 2B.

To equip a wrapped wire crown, it suffices to pierce its film 2 to form the upper central orifice 3 and to reach the free end 4 of the wire, then to glue the strip 5 onto the film 2, diametrically at the central orifice 3, while introducing the free end of the wire 4 into the passage opening 6.

Thus, once a length of wire pulled by the passage opening 6 and cut for use, the free end of the wire remains in this opening and is easily recoverable for a subsequent operation. The invention also relates to the use of a device for simultaneous unwinding of n wire rings or electrical cable consisting of piercing the packaging film of each ring to form the upper central orifice, and in the following steps - the packaging film of each ring is also pierced on the underside of each ring, -a said strip is secured to the packaging film of each ring diametrically to the central orifice and the free end of the wire of this ring is introduced into the passage and retaining device, the n-rings are stacked one on the other and the free end of the wire of each ring is introduced into the device for the passage and retention of the upper rings.

In Figure 3, three rings 1A, 1B, 1C are stacked and illustrate this advantageous use of the invention.

It may indeed be necessary to install several (here three) cables or wires together. In this case, a first ring 1A is equipped with a band 5A and the end of the wire of this ring is disposed in its passage opening, as previously described.

A second ring 1B is superimposed thereon, its packaging film being drilled to form the upper central orifice. Its packaging film is also drilled on the underside to pass the end of the wire of the first ring 1A. The second ring 1B is equipped with a band 5B and the end of the wire of this second ring 1B and also the end of the wire of the first ring 1A are arranged in its passage opening.

A third ring 1C is superimposed on the second ring 1 B, its packaging film being drilled to form the upper central orifice. Its packaging film is also drilled on the underside to pass the end of the wire of the first and second rings 1A and 1 B. The third ring 1C is equipped with a 5C band and the end of the wire of this third ring 1C and also the end of the wire of the first and second rings 1A and 1B are arranged in its passage opening.

Thus, as shown in Figure 3, the three son can be manipulated and unrolled together to cut a desired length identical.

Claims (8)

1. Device for unwinding a ring (1) of electric wire or cable wrapped in a film (2) comprising an upper central opening (3) through which the wire may be unwound, a device comprising a passage and retaining device the free end of the wire, consisting of a tongue intended to traverse diametrically said central orifice (3) and having a passage opening (6) of the wire to ensure its retention, characterized in that said tongue consists solely of a strip (5) intended to be secured directly to said film (2). 2. Device according to claim 1, characterized in that said strip (5) is self-adhesive on a portion of its lower face intended to be secured to said film (2). 3. Device according to one of the preceding claims, characterized in that said strip (5) is of flexible material. 4. Device according to one of the preceding claims, characterized in that said strip (5) is plastic. 5. Device according to one of the preceding claims, characterized in that said strip (5) consists of a strip of transparent adhesive tape (5A) bearing on its adhesive side a smaller centered opaque strip (5B). 6. Device according to the preceding claim, characterized in that said passage opening (6) consists of a centered cut of said strip (5). 7. Use of a unwinding device of a ring (1) of wire or electric cable according to one of the preceding claims, of drilling said film to form said upper central orifice, characterized in that said strip is secured on said film diametrically to said central orifice (3) and the free end of the wire is introduced into said passage and retaining device. 8. Use of a device for simultaneous unwinding of n rings (1A, 1 B, 1C) of wire or electric cable according to one of the preceding claims, of piercing said film of each ring to form said upper central orifice, characterized in that - said film of each ring is also pierced on the underside of each ring, - a said band (5A, 5B, 5C) is secured to said film of each ring diametrically to said central orifice and the free end of wire of this ring is introduced into said passage and retaining device, the n rings (1A, 1 B, 1 C) are stacked one on the other and the free end of the wire of each ring is introduced into said device for passing and retaining the upper crowns.