FR3109053A1 - Device for working the soil. - Google Patents

Abstract

Device (1) for working the soil comprising:- a frame (3) intended to be placed on a motorized means of displacement (2),- two side members (4, 4') extending in the same direction on either side on the other side of the median plane of said frame (3), - the said side members (4, 4') extending cantilevered with respect to the said frame (3), - the distal end of each of the said side members (4, 4') ) being associated with at least one support wheel (11, 11') intended to rest on the ground, characterized in that each of the said beams (4, 4') is pivotally mounted between a high position and a low position in such a way to be able to pivot between these two positions independently of each other. Figure for abstract: Fig. 1.

Description

Device for tillage.

Technical field of the invention

The present invention relates to a soil working tool. More particularly, the present invention relates to a soil working device; intended for tillage of vines and/or horticultural plantations. The product according to the invention belongs to the field of devices carried by a self-propelled machine and intended to move entirely between two rows of plantations.

Previous technique

With the decrease in the use of phytosanitary products in the vineyards, tillage is again becoming an important part of the work of the winegrower. In the absence of chemical weeding, the winegrower has the choice between plowing between the rows of vines or letting the grass grow.

In either case, the winegrower will have to plow under the row, between the vines of the same row, in order to avoid the growth of weeds. Indeed, it is necessary to limit the contact between the said weeds and the wood, the leaves and/or the fruit.

To do this, the winegrower chooses to use animal traction, a straddle or a crawler to tow or push an intervine-type tool. Said tool comprises a blade which will work in the soil under the row between each stock and s' erase in contact with the base of the stock. Said tool can also be a mechanical weeder, for example of the rotating disc type.

The choice of the type of traction will depend in particular on the configuration of the land and its distance from the farm. When the terrain is uneven and/or when the plot is far from the farm headquarters, the use of the undercarriage is advantageous. This machine only occupies the space between two rows of vines. Its center of gravity is close to the ground which makes it insensitive to tipping. Its small size allows it to be transported easily from one plot to another on a flatbed or in a truck. Once in the vineyard, it is directed by its user who follows it on foot or, more rarely, seated on a seat placed in its upper part.

The undercarriage includes a tool holder which allows the various tools necessary for working the vines to be temporarily combined, such as intervines, mowers and plows. The tool holder can be arranged in such a way that the tool can be pushed or pulled. Advantageously, the tool holder makes it possible to combine two tools arranged laterally on either side of the undercarriage in order to simultaneously process two rows per pass.

The tool holder must allow the tool to be moved laterally before and/or during use in order to adapt to the inter-row distance. Furthermore, the tool port must also allow the tool to be moved at altitude in order to be able to work on the surface or in the ground but also in order to work more or less in depth in the ground.

The tool carrier increases the lateral and/or transverse dimensions of the undercarriage, which complicates its transport from one plot to another.

Moreover, in the case where the ground has a difference in level between each adjacent row, the tool holder must be able to compensate for this difference in level so that the work of the tool is done with the same efficiency from one row to another. .

The present invention proposes to solve the problems described above by proposing a tool holder device for a chase whose size can be easily reduced between each use and capable of adapting to the lateral unevenness of the ground.

Thus the present invention relates to a device for working the soil comprising:
- a frame intended to be placed on a motorized means of movement,
- two side members extending in the same direction on either side of the median plane of said chassis
- said side members extending cantilevered from said frame,
- the distal end of each of said beams being associated with at least one support wheel intended to rest on the ground,
remarkable in that each of said beams is pivotally mounted, relative to said frame, between a high position and a low position so as to be able to pivot between these two positions independently of each other.

It is thus understood that the beams will move in height according to the level of the ground. The wheel arranged at its distal end will cause this displacement with the advancement of the device in the row. Consequently, the tillage tools which are carried at the level of the beams will constantly work at the same distance from the ground or at the same depth. Furthermore, the fact that the two beams can move separately makes it possible to take into account the cant between the two rows which are worked simultaneously.

According to a preferred embodiment of the invention, each of said beams is associated with said frame by a pivot allowing the rotation of said beams around the same axis A.

According to a preferred embodiment of the invention, said device further comprises a tool holder associated with said beams.

According to an even more preferred embodiment, said tool holder is temporarily associated with said spar so as to be able to be moved along said spar.

According to a preferred embodiment of the invention, a portion of each of said beams moves, between said high position and said base position, in a guide groove delimited by an upper stop and a lower stop.

According to a preferred embodiment of the invention, each spar is associated with a lifting means capable of moving it from said low position to said high position.

According to an even more preferred embodiment of the invention, said lifting means comprises a cable driven by a motor, one end of said cable being associated with the distal end of said spar.

In the context of the present invention, the term “cable” is also intended to designate chains and straps.

In this embodiment, the soil working tool can be disengaged between each phase of use by raising the beams associated with the tool carrier. Moreover, at maximum elevation, the size of the device according to the invention is reduced, which facilitates its transport.

The present invention also relates to a chase which is remarkable in that it comprises a device according to the invention arranged such that the said longitudinal members extend on either side of the median plane of the said chase and in the direction of the direction of movement of the said chase. .

According to a preferred embodiment, said crawler further comprises a soil working tool, associated with said tool carrier, chosen from the group comprising interceptors, mowers, weeders.

Brief description of figures

shows a side view of a chaser according to the invention.

represents a perspective view of the same chaser.

represents a perspective view of the same chaser.

represents a perspective view of the same chaser.

Description of embodiments

A preferred embodiment of the device 1 according to the invention associated with a chaser 2 is illustrated in , [Fig. 2], [Fig. 3], [Fig. 4]. This embodiment is not limiting, the device according to the invention being able to be associated with any other motorized machine allowing passage between two rows of planting.

The device comprises a chassis 3 which may consist of a metal frame intended to receive the various elements constituting the device 1 according to the invention. This frame 3 preferably comprises a flat underside intended to bear against the displacement means used to set the device in motion.

The upper face of the frame 3 receives at least the proximal ends of the two longerons 4, 4'.

In the context of the present invention, the terms “distal” and “proximal” are used in reference to the distance from the frame 3. The proximal end is therefore the end of the spar 4, 4′ closest to said frame 3. The two beams 4, 4' extending cantilevered from said frame 3, the distal end of said beams 4, 4' is the end which is not plumb with frame 3.

The association between the frame 3 and the side members 4, 4' comprises a pivot junction around a horizontal axis A preferably perpendicular to the direction of progression of the device 1. In this case, the side members 4, 4' extend in two parallel planes. Alternatively, it is possible for the axes of rotation of the beams 4, 4' to be different from each other so that the longitudinal axis of said beams form a V.

In the context of the present invention, the term “overhang” is intended to mean that a part, comprising the distal end, of said longitudinal members 4, 4′ extends beyond the frame 3. Preferably, more than 50% still more preferably, more than 70% and quite preferably more than 80% of the lengths of said side members 4, 4' extends beyond the frame 3.
The beams 4, 4' extend in the same direction on either side of the median plane of the frame 3. Said direction is preferably the direction of progression of the device in use. Thus, each of the beams 4, 4' will be able to carry a tool on either side of the direction of progression and work the ground.

Support wheels 11, 11', intended to rest on the ground, are arranged at the distal end of the side members 4, 4'. The displacement of said wheels 11, 11' on the surface of the ground will cause the height displacement of the side members 4, 4' depending on the nature of the ground.

Alternatively, said wheels 11, 11' can be replaced by any other means extending, from the side members, towards the ground and intended to rest on the latter. For example, said wheels 11, 11' can be replaced by skis. Advantageously, a single support wheel 11, 11' is associated with each of the side members 4, 4'.

Said wheels 11, 11' are preferably arranged at the distal end of the side members 4, 4'. However, a certain latitude is possible when at the disposal of these, one can thus envisage that the distal end of the longitudinal members 4, 4 'extends beyond the location of the wheels 11, 11'.

Each support wheel 11, 11' will follow the surface of the ground and cause the height movement of the spar with which it is associated.

Each of the beams 4, 4' is associated with a tool holder (not shown) capable of receiving a soil working tool 8, 8'. This tool holder may be of any type known in the field. Advantageously, it may consist of a square welded to said spar, said square being able to receive a pole 10, 10'' associated with the tool 8, 8'. Alternatively, said square may be mounted to move in translation on said beam 4, 4' in order to allow the position of tool 8, 8' to be adjusted along said beam 4, 4'.

The tool holder is arranged in such a way as to allow the association of a tool 8, 8' intended for working the soil, that is to say in such a way that the part of the tool 8, 8' intended to be in contact with the ground (e.g. blade of the interceps) is directed downwards.

The invention also relates to a device 1 according to the invention associated with a tool 8, 8'.

The soil working tool 8, 8' can be intended for working the soil in depth or on the surface. Among the tools 8, 8' for working the soil in depth, mention may be made in particular of interstocks comprising a blade intended to plow the soil between two stocks. Among the surface tillage tools 8, 8', mention may be made in particular of weeders. These latter tools traditionally comprise horizontal rotating discs associated with blades directed towards the ground which will scrape the surface of the ground.

When the soil working tools 8, 8' are intended to work entirely or partially in the space between two stocks of the same row, they are preferably associated with erasing means capable of passing the tool 8 , 8' from its working position under the row to a position for which the tool is entirely arranged between two contiguous rows.

Said erasing means can be passive (e.g. a parallelogram) or implemented by a motor (hydraulic, electric or thermal). Said erasing means are advantageously controlled by a feeler capable of detecting the presence of an obstacle in the direction of progression of the soil working tool 8, 8'.

Advantageously, the soil working tool 8, 8' is pivotally mounted about a vertical axis between a working position, where it is arranged in such a way as to be able to work the soil, and a storage position or all or part of the tool 8, 8' is placed in the space delimited by the horizontal plane of the two longerons 4, 4'. Thus, for handling and transporting the device 1 according to the invention, said tools can be retracted and the lateral grip of the device reduced.

The passage from said working position to said storage position can advantageously be subjected to the action of a motor and advantageously of a hydraulic motor.

In order to limit the movement of the beams 4, 4' upwards and downwards, the device 1 according to the invention preferably comprises two stops 5, 6 for each beam 4, 4'. a bottom stop 5, 5' and a top stop 6, 6'. These stops 5, 5', 6, 6' can be formed by any means known to those skilled in the art, for example by metal bars.

The stops 5, 5', 6 and 6' delimit in altitude a guide groove 7, 7' in which a portion of the longerons 4, 4' moves. Said grooves can be materialized by vertical metal frames 9, 9'.

In the soil working phases, the beams 4, 4' move freely in their respective guide grooves 7, 7' depending on the support of the wheel 11, 11' on the ground. In the transport phases, the beams 4, 4' can be raised in the high position under the action of a lifting means (not shown). Thus the support wheels 11, 11' and the tool 8, 8' are off the ground and no longer rub on the ground when passing from one row to another.

These lifting means can be jacks associated on the one hand with the spar 4, 4' and on the other hand with the frame 3. Alternatively, said lifting means can comprise a cable (not shown) driven by a motor, one end of said cable being associated with the distal end of said spar 4, 4'. Said motor is advantageously associated with a winder and will cause the winding of said cable and the raising of the beams 4, 4'. Advantageously, between the motor and the distal end of the cable is arranged a pulley (not shown) in which said cable circulates. According to a preferred embodiment of the invention, said pulley is placed at the top of the metal frame 9, 9'.

The frame 3 of the device 2 according to the invention is preferably arranged on a chaser 2 such that the longerons 4, 4' extend in the direction of movement of said chaser. Although the chaser 2 is the preferred mode of transport for the device 2 according to the invention, any other mode of transport can be envisaged. It is for example possible to envisage associating one or more devices 1 according to the invention with a straddle so that said device 2 is entirely placed between two contiguous rows and so that the beams 4, 4' extend in the direction of movement of said straddle.

In these last two embodiments, the frame 3 of the device 1 according to the invention can form an integral part of the mode of transport chosen.

Claims (9)

Device (1) for working the soil comprising:
- a frame (3) intended to be placed on a motorized displacement means (2),
- two beams (4, 4') extending in the same direction on either side of the median plane of said frame (3),
- said side members (4, 4') extending cantilevered relative to said frame (3),
- the distal end of each of said beams (4, 4') being associated with at least one support wheel (11, 11') intended to rest on the ground,
characterized in that each of said beams (4, 4') is pivotally mounted between a high position and a low position so as to be able to pivot between these two positions independently of each other. Device according to the preceding claim, characterized in that each of the said beams (4, 4') is associated with the said frame (3) by a pivot allowing the movement of the said beams around the same axis A. Device according to one of the preceding claims, characterized in that it further comprises a tool holder arranged on each of the said side members (4, 4'). Device according to the preceding claim, characterized in that the said tool holder is temporarily associated with the said beam (4, 4') so as to be able to be moved along the said beam (4, 4'). Device according to one of the preceding claims, characterized in that a portion of each of the said beams (4, 4') moves in a guide groove (7, 7') delimited by an upper stop (6, 6') and a bottom stop (5, 5'). Device according to one of the preceding claims, characterized in that each spar (4, 4') is associated with a lifting means capable of moving it from said low position to said high position. Device according to the preceding claim, characterized in that the said lifting means comprising a cable driven by a motor, one end of the said cable being associated with the distal end of the said beam (4, 4'). Chaser (2) characterized in that it comprises a device (1) according to one of the preceding claims arranged in such a way that the said longitudinal members (4, 4') extend on either side of the median plane of the said chaser ( 2) and in the direction of the direction of movement of said chaser (2). Chaser (2) according to the preceding claim, characterized in that it further comprises a soil working tool (8, 8'), associated with said tool carrier, chosen from the group comprising interstocks, mowers, weeders.