FR2775677A1 - Device for unwinding electrical cable from wooden cable drum - Google Patents

Abstract

The device comprises two lateral crossed structures (3,4) connected by a horizontal support shaft (2) which receives the coils of cable. The lateral structures are supported on the ground at one end and act as a gripping part at the other end. This allows the user to tip the whole and bring the lateral structures into a position where the shaft is stably held above the ground enabling the free rotation of the coils when the cable is pulled to unwind it.

Description

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  The present invention relates to a cable unwinding device. It is well known to deliver coiled electrical cables

on wooden drums.

  The assembly, due to its weight, is quite difficult to handle. There is therefore a need to have a cable unwinding device which facilitates the handling of the drums and which in particular allows the cable length to be easily unwound.

desired.

  The cable unwinding device according to the invention is characterized in that it comprises two lateral structures connected at least during use by a horizontal support axis intended to receive the reel, at least one of said lateral structures being connected removably to the support axis, the lateral structures being further arranged so as to be able to bear on the ground at one end and to serve as a gripping member at the other end to allow a user to tilt the assembly in order to bring the lateral structures into a position for stable maintenance of the support axis above the ground, allowing the free rotation of the drum when the cable is pulled

to unroll it.

  In a preferred embodiment, each lateral structure comprises on one side a roller capable of rolling in contact with the face

  exterior of one of the drum flanges.

  Still in a preferred embodiment, the support axis is

  consisting of a round metal tube.

  Preferably, each lateral structure is in the general form of a crosspiece whose branches are joined to a

end with a dish.

  The invention also relates to a method for unwinding a cable wound on a reel, characterized in that it comprises the steps consisting in: - the reel resting by its two flanges on the ground, introducing the support axis to across the drum at one end, the other end of the support axis being fixed to one of the two lateral structures, - securing the other lateral structure to the support axis,

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  - grab the side structures at one end and tilt them up and forward to bring them into a

  stable position allowing rotation of the reel.

  The cable unwinding device according to the invention has, in addition to the advantages indicated above, a small footprint in the disassembled state, ease of assembly, a relatively low manufacturing cost.

low and great robustness.

  The invention will be better understood on reading the

  description which follows, of a nonlimiting exemplary embodiment,

  and on examining the appended drawing in which: - Figure 1 is a front view of the device in the use position, the reel not being shown, - Figure 2 is a view along the section line II- II of Figure 1, and

  - Figures 3 to 6 illustrate the use of the device.

  The cable unwinding device 1 for reel shown in FIG. 1 comprises on the one hand a support pin 2 constituted, in the example described, by a round tube and on the other hand two lateral lifting and holding structures 3, 4, each subject to a

  removable at one end of the support pin 2.

  As can be seen in FIG. 2, the structure on the left 3 comprises two branches 3a, 3b constituted, in the example described, by metal profiles of rectangular section, these

  profiles being assembled so as to constitute a cross.

  A cylindrical sleeve 3c is welded at the intersection of the sections 3a and 3b, on the right side of the

  structure 3, to receive one end of the support axis 2.

  The sleeve 3c and the support pin 2 are pierced with lateral orifices allowing, when superimposed, the passage of a 3d pin

  intended to immobilize them axially and in rotation.

  This 3d pin is mounted captively on the

  structure 3 thanks to a 3rd chain.

  The two sections 3a and 3b are connected together to a

end by a dish 3f.

  More particularly, in the example described, the section of the sections 3a and 3b at the level of their attachment to the flat 3f is not straight but bevelled, so that when the flat 3f rests horizontally on the ground, of a share profiles 3a and 3b

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  rest by their edge on the flat 3f and on the other hand the vertical plane passing through the middle of the flat 3f contains the geometric axis

of symmetry X of the sleeve 3c.

  In the example described, the angle between the sections 3a and 3b is approximately 50, their length is approximately 1 m 20

  and that of the 3f dish is about 60 cm.

  A 3g caster whose geometric axis of rotation Y is perpendicular to the geometric axis X is fixed on the part of the

  section 3a extending between the plate 3f and the sleeve 3c.

  The structure on the right 4 is of symmetrical construction and

  we will refer to the description which has just been given of the

  left structure 3, identical elements being designated on the

  drawing by the same reference letters.

  The device 1 is used in the following manner.

  First, we start by assembling one of the lateral structures 3 or 4, for example the left structure 3 and the axis of

support 2.

  The support axis 2 is introduced into the sleeve 3c and then the pin 3d is inserted through the superimposed holes of the support axis 2 and the sleeve 3c to immobilize them axially and radially. Then, as illustrated in FIG. 4, the support axis 2 is introduced through the reel T, then the right structure 4 is subjected to the support axis 2 by means of the sleeve 4c and the

4d pin.

  The device 1 then rests on the ground by the lower end of the dishes 3f and 4f and by the free end of the profiles

3_, 4_.

  To bring the reel T into its position of use, the user grasps the sections 3b, 4b and moves them up and forward, as illustrated in FIG. 5, making them tilt

  the assembly around the support points on the ground of the dishes 3f, 4f.

  The movement of the reel T is facilitated by the arm effect

  lever provided by profiles 3b and 4b.

  At the end of this tilting, the support axis 2 is brought to a height greater than the radius of the drum T and the latter therefore ceases to be in contact with the ground. The lateral structures 3 and 4 rest on

  stably by plates 3f and 4f.

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  The cable C wound on the reel T can be unwound by pulling on it, as illustrated in FIG. 6, the rollers 3g and

  4 ensuring the centering of the reel T during its rotation.

  Of course, the invention is not limited to the embodiment which has just been described. One can in particular modify the shape of the lateral structures 3 and 4 used, or even add elements improving the comfort of use, for example handles at the free end of the profiles. After use, the device can be easily dismantled by first tilting the assembly to lower the drum T to the ground and then disassembling the lateral structures 3

and 4 and the support axis 2.

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Claims (6)

  1. Cable unwinder device (C) for drum (T), characterized in that it comprises two lateral structures (3,4) connected at least during the use of the device by a horizontal support pin (2) intended to receive the drum (T), at least one of said lateral structures being detachably connected to the support axis (2), the lateral structures being further arranged so as to be able to bear on the ground at one end and to serve as a gripping member at the other end to allow a user to tilt the assembly in order to bring the lateral structures (3, 4) into a position for stable maintenance of the support axis (2 ) above the ground, allowing free rotation of the drum   (T) when the cable is pulled (C) to unwind it.   2. Device according to the preceding claim, characterized in that each lateral structure (3; 4) comprises on the side a roller (3g; 4q) capable of rolling in contact with the external face of a flange of the drum (T) when the latter is rotated to unwind the cable (C).   3. Device according to any one of the claims   above, characterized in that said support pin (2) is   consisting of a round metal tube.   4. Device according to any one of the claims   above, characterized in that each lateral structure (3; 4) is in the general form of a spider whose   the branches are joined at one end by a dish (3f; 4f).   5. Device according to the preceding claim, characterized in that each lateral structure (3; 4) comprises on one side at the level of the intersection of the branches of the spider, a sleeve (3c; 4c) intended to be used for removable fixing of the axis support (2).   6. Method for unwinding a cable (C) wound on a reel (T), by means of a device as defined in one   any of the preceding claims, characterized in that   that it comprises the stages consisting in: - the reel (T) resting by its two flanges on the ground, introducing the support pin (2) through the reel at one end, - 6 - 2775677   the other end of the support axis (2) being fixed to one of the two lateral structures (3; 4), - securing the other lateral structure (3; 4) to the support axis, - grasping the side structures at one end and tilt them up and forward to bring them into a   stable position allowing rotation of the reel (T).