FR2842861A1 - Boring device used for vine cultivation comprises drill at end of arm articulated to motorized vehicle, articulation comprising connection part pivoted in horizontal plane by actuator, arm pivoting in vertical plane - Google Patents

Abstract

The boring device comprises a drill (4) at the end (21) of an arm (2) the other end (20) of which is fixed to motorized vehicle by an articulation (3). The articulation is inserted between the arm and a base (1) intended to be fixed to the front or rear of the vehicle. It comprises a connection part (30) able to pivot in a horizontal plane under the action of an actuator (16) whilst the arm is able to pivot on the connection part in a vertical plane under the action of another actuator (22).

Description

The present invention relates to a drilling device intended to be

  used for growing vines or others

shrubs planted in close rows.

  The vine and other shrubs planted in close rows have many enemies of biological, physiological or animal origin, and to combat these enemies different treatments are used by spraying fungicides, insecticides, acaricides, ovicides, larvicides etc. However, for ecological and public health reasons, the use of certain treatment products has been prohibited, without replacement products being offered. Consequently, it is necessary, in certain cases, to uproot a vine or shrub that is sick or attacked by a parasite, by digging a hole around the foot to completely eliminate the latter and thus avoid proliferation, and

  to be able to plant a healthy vine.

  In the past, operations to uproot and / or replace a foot were rather rare, and digging

  of the hole was made manually.

  With the ban on the use of the aforementioned products, there has been an obvious increase in the number of feet to be torn off and / or replaced, and therefore an increase in the cost of labor. To overcome this drawback, the uprooting and / or transplanting operation should be mechanized, but there are currently no machines capable of being used in vines or in the planting of shrubs planted in tight rows. Farms and vineyards are sometimes equipped with an auger capable of being fixed to the power take-off of a tractor, and in particular making it possible to dig holes for the installation of poles, stakes or the like. These augers are, however, of limited maneuverability, linked to the maneuverability of said tractor, which prohibits their use in vine routes to clear the roots of a vine. Drilling devices are also known which are used in fields other than the agricultural or viticultural field, such as, for example, that for the installation of telegraph poles or the like, described in the document FR 2,633,602. This device comprises a towing machine equipped with an auger arranged at the end of a telescopic arm. Again, this device has the disadvantage of being too large to be able to move between two rows

vineyard.

  One could however consider installing the telescopic arm of the aforementioned device on a motorized vehicle able to penetrate the vines, a straddle for example, but said arm does not have sufficient mobility to bring the auger to the level of a vine stock. and digging a hole around said foot. Indeed, even if the arm is telescopic and able to pivot on the motorized vehicle, the setting in cover of the auger requires a particular positioning and orientation of said motorized vehicle, while in a vineyard the positioning of the vehicle is imposed by the

rows of it.

  The object of the present invention is to propose a drilling device intended to be used for the cultivation of the vine or other shrubs planted in close rows, making it possible to remedy these various drawbacks, while being of

  simple, robust design and low manufacturing cost.

  The device which is the subject of the present invention is of the type comprising an auger arranged at the end of an arm, the other end of which is secured to a motorized vehicle by means of a joint, and it is essentially characterized in that said articulation is interposed between said arm and a base intended to be secured to the front or to the rear of said motorized vehicle, and in that said articulation comprises a connecting piece capable of pivoting in a horizontal plane under the action of motor means, while said arm is able to pivot on said connecting piece in a vertical plane under the action of a

other driving force.

  The device according to the invention thus allows, while the positioning and the orientation of the motorized vehicle are defined by the rows of the vine, to bring laterally the

  auger at the base of the tear-off foot.

  According to an additional characteristic of the device according to the invention, the motor means consist of two hydraulic cylinders, one connecting the base to the part of

  link and the other connecting the latter to the arm.

  According to another additional characteristic of the device according to the invention, the auger is pivotally mounted on the arm about a horizontal transverse axis. According to another additional characteristic of the device according to the invention, the pivoting of the auger on the arm is angularly limited by means of a

damping means.

  According to a preferred embodiment of the device according to the invention, the connecting piece has a main body mounted to pivot in a horizontal plane on a pivot with a vertical axis, and crossed, in the transverse direction, by a pivot with a horizontal axis on which is articulated one end of the arm, said body being extended on the one hand laterally by a lever on which is articulated a jack connected in addition to the base, and on the other hand vertically by a lever on

  which is articulated a jack connected in addition to the arm.

  It will be noted that, advantageously, the device according to the invention can also be used for laying replacement stakes in the vines. In fact, generally when planting a vine, the stakes are placed one after the other, row after row, so that a drilling device of known type can be used, since the towing machine can easily maneuver. It is however not the same when it comes to replacing a stake

  in a vineyard, since the roads are already formed.

  The advantages and characteristics of the device according to

  the invention will emerge more clearly from the description

  which follows and which relates to the attached drawing, which in

  represents a nonlimiting embodiment.

  In the accompanying drawing: - Figure 1 shows a schematic elevation view

  in profile of a drilling device according to the invention.

  - Figure 2 shows a schematic plan view of the

same device.

  With reference to these figures, it can be seen that a drilling device according to the invention mainly comprises on the one hand a base 1 intended to be secured to the front or to the rear of a motorized vehicle, not shown; and on the other hand an arm 2, one end 20 of which is secured to the base 1 by means of a hinge 3, while its other end 21 carries an auger 4, in known manner comprising a motor unit 40 driving a screw endless 41. The base 1 comprises a plate 10 comprising on its rear face 11 means, not shown, for fixing to the motorized vehicle, and on its front face 12 a yoke 13 comprising two parallel and horizontal flanges 14, crossed by a pivot

with vertical axis XX '.

  The articulation 3 comprises a connecting piece 30 having a main body 31 mounted to pivot in a horizontal plane on the pivot 15, and crossed, in the transverse direction, by a pivot 32 with a horizontal axis YY 'on which the end 20 of the arm 2. The body 31 is extended laterally, in this case in line with the pivot 15, of a lever 33 on the end of which the rod of a jack 16 is articulated disposed between the two flanges 14 and also connected to the base 1. The body 31 is also extended vertically, in this case in line with the pivot 32, of a lever 34, not visible in FIG. 2, on the end of which is articulated, by via an axis, a jack 22, not visible in FIG. 2, connected moreover to the arm 2 via a transverse axis 23. The jacks 16 and 22 are preferably double hydraulic jacks effect, powered, like the auger 4 which is also with hydraulic motor, by the central

hydraulics of the motorized vehicle.

  It will be understood that by acting on the jack 16, the operator pivots the connecting piece 30 along the axis XX 'in a horizontal plane, while by acting on the jack 22 the operator

  rotates the arm 2 along the axis YY 'in a vertical plane.

  The combined actuation of the two jacks 16 and 22 thus makes it possible to position the auger 4 as close as possible to the desired location, while the motorized machine remains in a parallel position

to vegetation.

  It will be noted that advantageously the auger 4 is pivotally mounted at the end 21 of the arm 2 on a pivot 24 of transverse axis, and that its position is recalled by a damping system 5. This damping system 5 comprises a rod 50 substantially parallel to the arm 2, connected at one end to the engine block 40 of the auger 4 in an articulated manner by means of a pivot 42 of transverse axis, and which passes through a lug 25 fixedly fixed to the arm 2, while two compression springs 51 and 52 are threaded on the rod 50, each on either side of the tab 25, and that two stops 53 and 54, integral with the rod 50, each hold one of the springs 51 and 52 respectively, on the opposite side in contact with the

leg 25 ..

  The auger 4 can thus pivot on the pivot 24 by compressing one or the other of the springs 51 and 52 in the direction

  pivot, and be returned to its rest position.

  In practice, the operator maneuvers the arm 2 so as to bring the auger to the level of the foot to be torn off and to plant the point of the worm screw 41 in the ground at the place provided, then to operate the auger 4. It will be noted that after having poked the endless screw 41 into the ground in order to immobilize it, the operator will make the tractor move forward or backward in order to position the endless screw 41 vertically,

  which is made possible by the pivoting of the auger 4.

  The drilling device according to the invention is very easy to handle, and its simple design allows a cost of

relatively weak manufacturing.

  It will be noted that the device according to the invention is shown diagrammatically with a straight arm 2, but this may have another shape allowing an easier approach to the working area, for example by being slightly bent upwards, close of his

end 21.

  It goes without saying that the present invention cannot be

  limited to the foregoing description of one of its modes of

  realization, likely to undergo some modifications without

  however, depart from the scope of the invention.

Claims (5)

  1) Drilling device intended to be used for growing vines or other shrubs planted in close rows, of the type comprising an auger (4) arranged at the end (21) of an arm (2), the other of which end (20) is secured to a motorized vehicle by means of a joint (3), characterized in that said joint (3) is interposed between said arm (2) and a base (1) intended to be secured to the front or rear of said motorized vehicle, and in that said articulation (3) comprises a connecting piece (30) capable of pivoting in a horizontal plane under the action of a motor means (16), while that said arm (2) is able to pivot on said connecting piece (30) in a vertical plane under the action of another means motor (22).   2) A drilling device according to claim 1, characterized in that the motor means (16, 22) consist of two hydraulic cylinders, one (16) connecting the base (1) to the connecting piece (30) and the other (22) connecting this last on the arm (2).   3) A drilling device according to claim 1 or claim 2, characterized in that the auger (4) is mounted on the arm (2) pivotally about an axis horizontal transverse (24).   4) A drilling device according to claim 3, characterized in that the pivoting of the auger (4) on the arm (2) is angularly limited by means of a damping means (5).   ) A drilling device according to claim 4, characterized in that the damping means (5) comprises a rod (50) substantially parallel to the arm (2), connected at one end to the auger (4) in an articulated manner by means of a pivot (42) of transverse axis, and which passes through a lug (25) fixedly integral with said arm (2), while on the one hand two compression springs (51, 52) are threaded on said rod (50), each on either side of said tab (25), and on the other hand two stops (53, 54), integral with said rod (50), each hold one of said springs (51, 52) of the   opposite side in contact with said tab (25).   6) Drilling device according to any one of   previous claims, characterized in that the workpiece   link (30) has a main body (31) pivotally mounted in a horizontal plane on a pivot (15) with a vertical axis, and crossed, in the transverse direction, by a pivot (32) with a horizontal axis on which is articulated the end (20) of the arm (2), said body (31) being extended on the one hand laterally by a lever (33) on which is articulated a jack (16) connected in addition to the base (1 ), and on the other vertically a lever (34) on which is articulated a jack (22) connected by elsewhere on said arm (2).