FR2840766A1 - Mounting clip for plant support wires has loops fitting round wires attached to arms whose bases form springs, allowing arms to be swiveled outwards, after which they automatically return to raised position - Google Patents

Abstract

The mounting clip for plant support wires (F) has loops (52) which fit round the wires. These are attached to arms (51) whose bases are wound to form spiral springs (53). This allows the arms to be swiveled outwards, after which they automatically return to the raised position.

Description

cut (4) according to any one of claims 1 to 14.

1 2840766

  The subject of the present invention is, in the field of trellising in arboriculture and viticulture, a device for guiding wires called lifters in order to ensure the lifting of the

  vegetation, and a lifting device for its implementation.

  The invention relates more particularly, in particular when it is a question of lifting the latter, by means of the so-called lifting wires. During the growth of the vegetation, the young shoots lengthen in a substantially vertical way and the foliage develops so that after a certain time, this vegetation tends to fall back under the effect of its own weight. In order to remedy this problem it is known to carry out a trellising of this vegetation which consists in binding these rods to trellising wires extending between stakes. In this regard, it is also known to equip such a spades with two trellising wires called lifters, arranged on either side of this spades, near the top of it, and between which the vegetation is intended for to be contained. In the fall, after the pruning operation, the 2Q lifting wires are unhooked from the stakes, only to be hung up in the spring during the trellising and lifting operation, which increases the leaf area , to favor the maturation of the grapes or the administration of the products of treatment of this vegetation. Such a lifting consists in bringing the lifting wires closer to each side of the vegetation and in keeping them tight, in particular using staples arranged such as

jumpers over these two firs.

  To do this, devices are used which allow reversible maintenance of these so-called lifting wires, which consist of retentive grooves practiced on either side of the spikes as described in documents DE 20 39 580 and US 2,011. 716, or in devices attached to the spikes and comprising such grooves as described in the document US

3411754.

  There are also known devices, usually called spacers, designed to be made integral with a spades and comprising two branches each extending on either side of said spikes and having at their free end a ring for receiving the thread. Such wind devices described in documents EP 0 876 756 and CH 685 187. The branches can take S two extreme positions in which the wind wires are separated

each other, be tight.

  The device of the document CH 685 187 provides for manual intervention for the positioning, whether in one position or in the other / of each of the branches, advantageously, the spacer device described in the document EP 0 876 756 is provided with 'a spring means allowing the automatic passage from the tightened position to the spread position of the release of the branches whose wind ends are expected to be maintained by a hooking means. These various devices are tedious to use, moreover, they do not make it possible to envisage a mechanization of

the lifting operation.

  Another drawback of these devices consists in that they are usually made integral with the spikes by fixing at a determined height. This only allows a lifting of the vegetation at a determined height but does not in any way make it possible to ensure a lifting in stages and accompanying the growth of

the vegetation.

  To overcome these drawbacks, some use stakes with hooks for fixing the lifting wires positioned at different levels, which wind are used successively to maintain the said wires as vegetation grows. This method remains primary and costly in labor, and can in no case

be mechanized.

  The present invention is intended to remedy the drawbacks of the devices of the state of the art, by proposing a device for guiding wires called lifters capable of ensuring the lifting of the vegetation, and ready to be brought into operation.

  poor manually or mechanically.

  To this end, the invention relates to a device for guiding wires called lifters for ensuring the lifting of vegetation, which is of the type comprising means making it possible to hold each of said wires in order to allow them to take up two extreme positions, namely separated and tightened, and it is essentially characterized in that said means of holding, integral or not with a spades, comprise means apses to ensure

  an automatic tightening of said lifting wires.

  According to another characteristic, the means of tightening

  automatic wind constituted by elastic return means.

  In fact, the wind tightening means defined by at least one metal wire made integral or not with a spades and having one or two loops for the reception of one or two wires raised said metal wire having at least one part capable of to be deformed under the effect of a constraint and to return to its initial shape, this deformable part constitutes the means of return

elastic.

  The advantages of the device according to the present invention consist in that it makes it possible to tighten the lifting wires in a position for lifting the vegetation, this without

  the intervention of an additional organ such as a clip.

  According to a particular embodiment of the device according to the invention, the deformable part of the metal wire is constituted by a portion of this wire conformed in extended coil, on the one hand by a first strand made integral with the spikes, and on the other hand , by a second strand provided with a loop for the reception of a wire

reliever.

  According to a variant of the precise embodiment, it comprises means apses to allow mounting in vertical sliding along the spikes on means forming slide, of a console receiving the holding means, associated with means

  immobilization of said console relative to said spikes.

  It will be noted that the means forming slides can come from

  manufacture of spikes, or be reported on the latter.

  The sliding with the possibility of immobilization advantageously makes it possible to periodically and gradually raise the device with respect to the spikes in order to follow the growth of the vegetation.

4 2840766

  According to an additional characteristic, the wind immobilization means constituted by a stop forming means, defined at the level of the tightening means, and agency for cooperating with

  retention means defined at the level of the spikes.

  Another characteristic of the device according to the invention consists in that the stop forming means is constituted by a deformation of the tightening means configured such as a lug arranged to cooperate with the retention means, which wind defined by openings, bosses or analogous practical to

level audit spades.

  This device also allows, after a constraint has been exerted on it to ensure a distancing of the lifting wires, to proceed in particular to an operation of trellising of the vegetation, or to raise this device with respect to the spikes, an automatic tightening of these lifting wires in the vegetation lifting position. The lifting of the vegetation can, due to the design of this device, as the case may be, be carried out manually or mechanically. To this end, the present invention also relates to a lifting device for implementing the device for guiding lifting wires, which is essentially characterized in that it is intended to be carried by a towing machine, and in that '' it includes means quick to discard the agency means to ensure automatic tightening of said lifting wires, by acting on

these latter.

  According to an additional characteristic of the lifting device for implementing the device for guiding lifting wires according to the invention, it is associated with translation means in

the vertical direction.

  According to a particular embodiment of the lifting device for the implementation of the device for guiding the lifting wires according to the invention, it comprises two diabolos able to be positioned between the threads, in the groove of each of which passes one of these last, and which is carried by a structure

2840766

  deformable in the transverse direction so as to allow to move away

said diabolos of each other.

  According to another additional characteristic of the lifting device for implementing the lifting wire guide device according to the invention, it is associated with means for restraining the vegetation, able to maintain it behind during

  the spacing phase of said lifting wires.

  It should be noted that the device according to the invention, whatever its embodiment, is easier to implement when the lifting wires have a certain elasticity in the transverse direction. This elasticity can result either from the choice of material from which the fans are made, or from the association with said

  son of elastic means such as springs for example.

  Other objects and advantages of the present invention

  will appear during the description which follows relating to

  to embodiments which are only given as examples

indicative and not limiting.

  Understanding this description will be facilitated by

  Refer to the attached drawing in which: - Figure l shows a schematic elevation view of a first embodiment of the device according to the invention in a particular configuration of use, - Figure 2 shows a similar view of the same embodiment in another particular configuration, - Figure 3 is a schematic view, in elevation and in section of a second embodiment of the guide device of the take-up wires according to the invention; - Figure 4 is a schematic, partial view, in elevation and in section of the same embodiment in a particular configuration of use; - Figure 5 is a schematic, partial view from below of the same embodiment of the device according to the invention, mounted

on a spades.

  - Figure 6 shows a partial schematic elevation view of a lifting device for the implementation of the

  guiding device according to the invention.

6 2840766

  With reference to FIGS. 1 and 2, it can be seen that the device for guiding take-up wires F according to the invention, consists, in a first embodiment 1, of a metal wire 10, preferably of spring quality, folded for it confer elastic return properties to achieve the tightening of the lifting wires F. Thus each end of the wire 10 is folded to form a loop 11 capable of retaining a wire F. while its middle part is folded to form on the one hand in each of the extreme parts a branch 12 ending in a loop 11, and on the other hand means 13 of elastic return allowing the spacing of the branches 12, and therefore the separation of the loops 11 from one another and of the wires F which they retain, as shown in FIG. 2, as well as the return to the rest position or the loops 11 and therefore the wires F are brought close together, as shown in FIG. 1. In the mode of realization 1 represents, the recall means 13 elastic consists of a middle turn 14 and two turns

intermediaries 15.

  This embodiment 1 of the device according to the invention is intended for atre use secured or not to a trellis spikes or the like, not shown. Indeed, it can exercise its tightening function of the lifting wires F by being suspended from them and without being fixed to a support, just as it can be secured to a

  spikes through the middle turn 14, for example.

  Due to the automatic tightening of the lifting wires F. it is no longer necessary to use staples, and it is possible at any time to move aside the lifting wires to introduce a

escaped branch.

  It will be noted that the lifting can be carried out manually, but it is however preferable for it to be carried out in a mechanized manner using the device which will be described later, in particular when

  the device 1 is not fixed to a spades or the like.

  It will also be noted that when the device is not fixed to a spades or the like, the latter may include means for retaining firs, allowing vertical play of a certain amplitude.

7 2840766

  Referring now to Figures 3, 4 and 5, we can see a second embodiment 2 of the device according to the invention, intended to be fixed to a spades 3, and allowing in particular, in addition

  tightening, to vary the lifting height.

  S This embodiment 2 is divided into two identical pieces 20, each of which includes a console 4 provided capable of sliding along the spikes 3, and a tightening means 5 of a take-up wire F. It will be noted that it can be plans to use a single piece 20, for lifting against a wall or in combination with a fixed wire. The console 4 has a part 40 conforming behind the scenes to cooperate with the spikes 3 which, in this example, as can be seen in FIG. 5, consists of a strip folded to form a profile of section substantially in H. each of which parallel ribs 30 forms a sliding path enveloped by the part 40. It will be noted that the spikes 3 may have a different profile, it is thus possible the sliding paths are presented in a hollow retentive form inside which can be

move part of the console.

  In addition, in the case of wooden spikes, it is perfectly possible to add a slide on them.

  allowing the device to slide 2.

  The tightening means 5 again consists of a metal wire 50, preferably of spring quality, folded to give it elastic return properties. I1 thus comprises at the end a loop 52 for the reception of a take-up wire F. and which constitutes the end of a branch 51 extending from a turn 53 constitute an elastic return means, while the other end, 54, the wire 50 is secured to the console 4, by means of a pivot 41 thereof on which the wire 50 can pivot angularly limited manner. It can thus be seen in FIG. 3 that, at rest, the turns 53 exercise their return function and bring the loops 52 to the

  contact of the spikes 3 and therefore the wires F in the vicinity thereof.

  In order to separate the wires F from one another in order to penetrate the vegetation therein, it is therefore necessary to compress the coil 53 by exerting a force T. shown in FIG. 4, on one or the

  two wires F. or directly on one or both branches 51.

  S This embodiment 2 of the device according to the invention can have several variants, depending in particular on the plantation. In the case for example of the wooden stakes mentioned above, it is frequent that these stakes are of large diameter, so that a tightening of the lifting wires on either side of these stakes is not effective because leaving too much large space between firs. Thus, it is planned to use a device according to the invention comprising a slide attached to the spikes, not laterally but forward or back, on which can slide a console carry two means of tightening independent of one other, similar to the wires 50 except that they additionally comprise at least one fold so that they evolve, during their displacement, in a vertical plane making an angle

  oblique to the trellising plane.

  Furthermore, the wire 50 comprises a part 55 extending between the coil 53 and the end 54 which, in the embodiment shown, has the particularity of comprising, in cooperation with the console 4 and the spikes 3, means

  of immobilization of the console 4 on the spikes 3.

  This part 5 thus presents a fold 56 forming a pin capable, at the direction of the pivoting of the wire 50 on the pivot 41, to enter or exit from one of the holes 31 which the spikes 3 regularly comprises longitudinally distributed. In the rest position , the fold 56 forming a lug of a wire 50 comes to be housed in a hole 31, as can be seen in FIG. 3, and immobilizes the console 4, while, during the spacing of the wire F. and therefore of the opening of the wire 50 by compression of the coil 53, the end 54 of the wire pivots, enough to allow the disengagement of the fold 56 forming a lug out of the hole 31, thus authorizing the sliding of the console 4

  on spikes 3, as shown in figure 4.

  This embodiment 2 of the device according to the invention thus makes it possible to achieve not only the automatic tightening of the lifting wires F around the vegetation, but also the setting of these wires F to the appropriate height. This property is particularly advantageous when it is a question of mechanizing the lifting by means of a lifting device 6 such as that shown in FIG. 6. The lifting device 6 comprises a structure 7 intended to be carried by a towing machine, not shown, and which is suitable for

  be vertically translated to be placed at the desired height.

  This structure 7 comprises two parts 70 juxtaposed transversely capable of being separated from one another in the transverse direction, preferably symmetrically. The parts 70 may, for example, consist of two parallelograms

  horizontal deformables connected to the same control means.

  On the other hand, each of the parts 70 carries a diabolo 71 exe 1 'vertical, mounted in free rotation, whose groove 72 is intended to receive a take-up wire F. It will be understood that after engagement of the diabolos 71 between the wires lifters, the spacing of the parts 70 of the structure 7 has the effect of spreading the lift wires F in the region adjacent to the structure 7, the displacement of which along the lift wires F has the effect of temporarily opening the latter, so as to allow the repositioning of the vegetation between the lifting wires F. and

  possibly the correction of the height of these.

  Advantageously, the lifting device 7 is associated with means 8 for automatically taking the wire in the form of circular and conical deflectors driven in rotation and provided at the periphery of fingers 80, and which wind intended to guide the

  lifters F to diabolos 71.

  We can also see that the diabolos have a particular architecture, in the sense that they make up, practiced at their throat 72, peripherally and regularly angularly spaced, cavities 73 capable of accommodating the loop 52 during the passage of a diabolo 71 at the level of a device 2, so as to ensure the rotational drive of the diabolo 71 and

  thus to avoid blocking of the branch 51 behind the latter.

  In this FIG. 6, it can also be seen that the lifting device 6 is intended to cooperate with means 9 for restraining the vegetation, not shown, which consist, for each of the parts 70 and a series 90 of discs or rollers 91, suitable for come, by means of return means, not shown, in contact with the vegetation under the device 2, so as to keep the vegetation tight while the wires F are spread apart and possibly heightened, which in particular avoids the engagement of the

  vegetation between wires F and diabolos 71.

  The means 9 for restraining the vegetation can come in different forms, they can consist of a

track system for example.

  Note that the lifting device 7 can also be used with the guide device 1, preferably loreque

  it is not attached to a spike or the like.

  The use of the guide device according to the invention associated with the lifting device 7 has many advantages over the techniques used until now. We can indeed now consider passing as many times as necessary, and without it being tedious, to adapt the height of the lifting wires to the height of the vegetation, which other techniques do not allow, those using the stapling

for example.

  This new way of proceeding allows us to envisage a

  simplification of the trellising operation, or even its elimination.

11 2840766

Claims (11)

  1) Device for guiding threads called lifters (F) in order to ensure the lifting of vegetation, of the type comprising means (1; 5) making it possible to hold each of said threads (F) in order to allow them to be can take two extreme positions namely spread and tightened, characterized in that said holding means, integral or not with a spikes (3), comprise means (11, 12, 13, 14; 51, 52, 53) apses to ensure   an automatic tightening of said lifting wires (F).   2) Device according to claim 1, characterized in that the automatic wind tightening means constituted by   elastic return means (13, 14; 53).   3) Device according to claim 1 or claim 2, characterized in that the wind tightening means defined by at least one metal wire (10; 50) made integral or not with a spades (3) and having one or two loops (11; 52) for the reception of one or two take-up wires (F) said metal wire (10; 50) having at least one part (13, 14; 53) capable of being deformed under the effect of a constrained and to return to its initial form, this deformable part (13, 14; 53) constitute the means of elastic reminder.   4) Device according to claim 3, characterized in that the deformable part of the metal wire is constituted by a portion (53) of this wire (50) conformed in extended coil, on the one hand, by a first strand (55) rendered integral with the spikes (3) and, on the other hand, by a second strand (51) provided with a loop (52) for receiving a take-up wire (F).   ) Device according to any one of the claims   previous, characterized in that it comprises means (40) able to allow mounting in vertical sliding along the spikes (3) on means (30) forming a slide, a console (4) receiving the holding means (5 ), associated with means (56, 31)   immobilization of said console (4) relative to said spikes (3). 12 2840766   6) Device according to claim 5, characterized in that the means (30) forming slides come from the manufacture of spikes   (3), or wind reported on the latter.   7) Device according to claim 5 or claim 6, characterized in that the wind immobilization means constituted by a stop means (56), defined at the tightening means (50), and agency to cooperate with means of   retention (31) defined at the spikes (3).   8) Device according to claim 7, characterized in that the stop forming means is constituted by a deformation (56) of the tightening means (50) configured as a lug agency to cooperate with the retention means (30), which wind defined by practical openings, bosses or the like at the level of the spikes (3).   9) Lifting device for implementing the lifting wire guide device (F) according to any one of the   previous claims, characterized in that it is intended for   be carried by a towing machine, and in that it comprises means (70, 71) able to remove the means (1; 5) agencies to ensure automatic tightening of said lifting wires (F), by acting on these latter.   ) Device according to claim 9, characterized in that   that it is associated with means of translation in the vertical direction.   11) Device according to claim 9 or claim 10, characterized in that it is associated with means (9, 90, 91) for restraining the vegetation, able to maintain this behind during   the spacing phase of said lifting wires (F).   12) Device according to any one of claims 9 a   11, characterized in that it comprises two diabolos (71) which can be positioned between the wires (F), in the groove (72) of each of which passes one of the latter, and which is carried by a structure ( 70) deformable in the transverse direction so as to   allow to move said diabolos (71) from each other.   13) Device according to claim 12, characterized in that the diabolos (71) each have, practiced at their throat (72), peripherally and regularly spaced 13 2840766   angularly, cavities (73) capable of tying the loop (52)