ES1069338U - Cable decobiner (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Cable unwinder composed of a stackable box (1), suitably sized to house inside it a cable reel (3), whose box (1) is provided with an opening (19) for the passage of one end of the cable, characterized in that the inner base of the box (1) comprises a rotating platform (2) on which the cable reel (3) is deposited to facilitate its unwinding from the outer end of the cable (18), provided the arrangement of means for maintaining constantly centered and expanded the cable turns that make up the coil (3) with respect to its axial axis. (Machine-translation by Google Translate, not legally binding)

Description

Cable Unwinder

Object of the invention

The present invention relates to a cable unwinder, preferably electric cable, of which It is used in domestic electrical installations and Industrial

The object of the invention consists of a box stackable, equipped with a rotating platform on which deposit the cable coil, whose box is provided with an opening to remove the outer end of the cable and stretch it, to Supply the necessary length thereof.

Background of the invention

Generally, electric cable manufacturers they supply said rolled product in the form of small coils 100, 200 or 500 meters depending on the cable section, so that are easily transportable and manageable by the operator.

For better storage, transportation and handling of said cable coils, the manufacturer itself packed in a box, usually cardboard, sized coil size, which is provided with a central hole die cut on its upper face, to facilitate extraction and unwinding the cable for installation.

This type of unwinder packing, supplied by the manufacturer itself, has the disadvantage that the cable end extraction and subsequent unwinding, it made from the inner end of the coil, which implies that the cable is extracted in the form of spirals. When you have to make large cable runs, these spirals are a because they cause cross-linking with other cables, or even with the cable itself, originated tangles that delay the execution of the electrical installation.

On the other hand, you have to keep in mind that for perform an electrical installation several cables are needed different colors, in order to differentiate some phases from others, a Once they have been passed through the corresponding installation tube. For this, the operator needs to work with several cable reels at the same time, scattering the boxes on the floor as they cannot be stacked. Generally, once the cable has been removed from the box, it is very laborious to save it again, so the remaining sections they are loose on the ground, originating multiple entanglements with the cables with which you are working.

Description of the invention

The cable unwind that the invention proposes, solves the problem previously exposed to unwind the cable linearly, without spirals, while allows to have all the disposition of coils and leftover sections Perfectly ordered and ready for use.

To do this, and more specifically, the Cable unwinder is composed of a stackable box, properly sized to house inside a coil of cable, equipped with an opening for the passage of one end of the cable, whose inner base has a platform swivel on which the cable coil is deposited for facilitate its unwinding from the outer end of the cable, having provided for the provision of means to maintain constantly focused and expanded cable turns that make up the coil with respect to its axial axis.

The turntable is assisted by some Ball bearings to reduce friction and facilitate rotation. Likewise, it is equipped on its axial axis, with an adjustable brake for Adjust the rotation speed of it.

Said adjustable brake is constituted by a threaded shaft integral to the base of the box that crosses the center of the turntable, on which a spring is available compressed helical by a set of nuts that press the spring against the turntable, through a washer.

The means to keep constantly centered and expanded the turns of the cable that make up the coil, are composed of at least three elastic bands equidistant, fixed at one end over the peripheral area of the turntable, and at the opposite end to the edges of the circular cover, which is fixed to the turntable a through an axial tubular body.

On the other hand, indicate that the circular cover is fixed to the axial tubular body, by means of a screw thread on the wall of the tubular body, to access the brake Adjustable arranged inside.

Finally indicate that at least one of your side walls of the box is provided with an opening horizontal in correspondence with the circular cover, for your manual drive to pick up the cable section surplus.

Description of the drawings

To complement the description that is being performing and in order to help a better understanding of the characteristics of the invention, according to an example preferred practical implementation of it, is accompanied as integral part of that description, a set of drawings where with an illustrative and non-limiting nature, what has been represented next:

Figure 1.- Shows a cross section of the cable unwinder in which all the elements that compose it.

Figure 2.- Shows a perspective view of the unwinder with the circular cover removed, so you can appreciate the placement of the coil and elastic bands.

Figure 3.- Shows a perspective view of the unwinder with the circular lid attached and the elastic bands fastened ready for use.

Figure 4.- Shows a plan view of the axial tubular body of the turntable, where you can appreciate the brake thyme and the screw nut for the fixing the circular cover.

Figure 5.- Shows a perspective view of a set of unwinders, properly stacked in two columns and arranged on a transport car.

Preferred Embodiment of the Invention

In view of the figures, a then a preferred embodiment of the unwinder of cable object of this invention.

As can be seen in the different figures, the cable unwinder is composed of a box (1) rigid quadrangular plant, whose interior base has a rotating platform (2) of circular configuration, on the that the cable coil (3) is deposited. Said turntable (2) rotates on the inner base of the box (1) around an axis threaded (4), integral with the lower end to the base of the box (1) and assisted by a ball bearing to reduce friction and facilitate your turn. In the present embodiment, the Ball bearing, is composed of two metal plates (5th and 5b) fixed respectively to the inner base of the box (1) and to the lower surface of the turntable (2) between which a set of balls (6) are arranged equidistant to the threaded shaft (4), for smooth rotation and with minimum friction of one surface with respect to the other.

In order to control the speed of rotation of the platform (2), depending on the weight of the cable coil (3) remaining inside the box, as well as for it to leave turn when the cable is stopped stretching from the outside, the Unwinder is provided with an adjustable brake (7) consisting of a helical spring (8) mounted on the threaded shaft (4) and compressed by a set of nuts (9) and washers (10) against the turntable (2). Thus, tightening the nuts (9) we compress the spring (8) so that the washer (10) exerts a greater pressure, and therefore greater friction on the platform (2) slowing its rotating movement.

As can be seen in figures 1 and 2, the unwinder is provided with means to maintain the coil (3) centered, with expanded cable turns, consisting, in the present embodiment, in four elastic bands (11) fixed equidistant, by one end on the peripheral area of the turntable (2), and by the opposite end to the edges of the circular cover (12), which is fixed to the turntable (2) through a tubular body axial (13). In this case, the opposite ends of the tapes elastic (11) are fixed to the circular cover (12), through hooks (14), on the diametrically opposite edge thereof. The elastic bands (11) are slightly tensioned, so that tend to expand outward from the turntable (2), forcing the turns of the coil (3) to stay radially expanded and centered with respect to the axis of rotation (4), avoiding the eccentric rotation of the coil (3).

To place the cable coil (3) on the turntable (2), the circular cover (12) is removable with respect to the tubular body (13), loosening the fixing screw (15), which coils on an appendage (16) integral to the wall inside the tubular body (13). In this way, removing the lid circular (12) we can also access the adjustable brake (7), when be free the passage to the axis of axial rotation (4) on which the same.

In the case of having removed more cable from the necessary, we can pick it up, turning the platform upside down rotating (2), through a horizontal opening (17) arranged in the front wall of the box (1), in correspondence with the lid circular (12) for manual operation.

Once the cable coil (3) is placed on the turntable (2), the outer end (18) of the coil (3) through the dispensing opening (19), the elastic bands (11) inside the coil supporting the ends on the edges of the box (1), the circular lid is placed  (12), is fixed to the tubular body (13) through the screw (15) and finally the ends of the elastic bands (11) are fastened to the diametrically opposite edges of the circular cover (12). For unwind the cable, the operator just has to pull continuously and gently from the end (18) until the necessary meters are obtained. To rewind the remaining section, you just have to turn the turntable (2) through the horizontal opening (17).

Finally, in order to keep the entire assortment of cables properly ordered, the unwinder is stackable and transportable by car (20), as can be seen in figure 5. To facilitate the stacking of the unwinders, the The base of the box (1) is provided with projections (21) for fit them consecutively.

Claims (7)

1. Cable unwinder consisting of a stackable box (1), properly sized to house inside a cable coil (3), whose box (1) is provided with an opening (19) for the passage of one end of the cable, characterized in that the inner base of the box (1) comprises a rotating platform (2) on which the cable coil (3) is deposited to facilitate its unwinding from the outer end of the cable (18), having been provided the arrangement of means for constantly keeping the cable turns that form the coil (3) centered and expanded in relation to its axial axis. 2. Cable unwinder according to claim 1, characterized in that the rotating platform (2) is assisted by ball bearings (6) to reduce friction and facilitate its rotation. 3. Cable unwinder according to previous claims, characterized in that the rotating platform (2) is provided on its axial axis (4) with an adjustable brake (7) to adjust the speed of rotation thereof. 4. Cable unwinder according to claim 3, characterized in that the adjustable brake (7) is constituted by a threaded shaft (4) integral with the base of the housing (1), on which a helical spring (8) is provided. compressed by a set of nuts (9) that press the spring (8) against the turntable (2) through a washer (10). 5. Cable unwinder according to claim 1, characterized in that the means for constantly keeping the turns of the cable forming the coil (3) constantly centered and expanded are composed of at least three elastic bands (11) equidistant, fixed at one end. on the peripheral area of the turntable (2), and at the opposite end to the edges of the circular cover (12), which is fixed to the turntable (2) through an axial tubular body (13). 6. Cable unwinder according to claim 5, characterized in that the circular cover (12) is fixed to the axial tubular body (13) by means of a thyme (14), which is screwed onto the inner wall of the tubular body (13) in order to access the Adjustable brake (7) arranged inside. 7. Cable unwinder according to claim 1, characterized in that at least one of the side walls of the box (1) is provided with a horizontal opening (17), in correspondence with the circular cover (12), for actuation manual.