FR2543788A1 - AGRICULTURAL MACHINE FOR Hoeing, Weeding and the like, WITH SEVERAL TOOL SUSPENSIONS - Google Patents

Abstract

THE AGRICULTURAL MACHINE OF THE INVENTION IS INTENDED FOR HINGING, WEEDING, BUTTAGE, HARVESTING AND OR FOR OTHER WORKS WITH THE EARTH, POSSIBLY IN COMBINATION WITH A SPRAYING OF HERBICIDES OR FERTILIZERS. IT INCLUDES SEVERAL TOOL SUSPENSIONS 20 PROVIDED WITH ADJUSTABLE SPACING WHICH EACH INCLUDES A TOOL HOLDER 23 JOINT WITH A UPRIGHT 25 ESSENTIALLY VERTICAL WHICH IS GUIDED IN ITS DESCENDING AND ASCENDING MOVEMENTS AGAINST THE EFFECT OF A SPRING BY A GUIDE 27 SOLIDARITY OF THE CHASSIS 3 OF THE MACHINE.

Description

IMPROVEMENTS TO AGRICULTURAL MACHINERY.

  The present invention relates to improvements

  additions made to agricultural machinery, in particular to machinery intended for hoeing, weeding, hilling, harrowing, etc., which make it possible to carry out this work simultaneously or not, possibly in combination with a

  spraying herbicides or fertilizers.

  Agricultural machines of this kind known up to now make it possible to fix the tools, such as harrow tines, hoes, discs, scorers and the like, on a support fixed to a parallelogram suspension which is intended to take account of irregularities of the ground

  to work These suspensions are however relative-

  bulky and complicated Furthermore, the result

  obtained by these devices is not always satisfied

  health. The present invention therefore aims to

  supply an agricultural machine for hoeing, weeding

  age, ridging, harrowing and similar work, which makes it possible to carry out at least two of these works simultaneously or not, possibly in combination with a spraying of herbicides or fertilizers, which comprises a suspension

  simpler and more efficient tools.

  According to the invention, the tool support is fixed on an essentially vertical upright which is guided in its downward and upward movements by a guide secured to the chassis of the machine, said movements being limited by stops and the upward movement,

  acting against the effect of a spring.

  According to the invention, the amount guided in its

  movements can advantageously include an adjustable roller

  ble in height, which rests on the ground and which allows the depth of the tool to be adjusted

in the ground to work.

  According to a first embodiment according to the invention, said upright slides in a suitable guide secured to the chassis of the machine, said guide being surmounted by a cap containing a spring resting on the end of the latter and on the end of said upright, the stop for the upward movement being formed by the cap itself and the stop for the downward movement being formed by a pin pressed transversely into the upright, the movement of which is limited by the

  guide secured to the machine frame.

  Alternatively, a spring can be placed between two arms, the first of which is integral with the guide and the

  the second is secured to the amount.

  Other details and benefits of the improvements

  supplied to the agricultural machinery in question

  will appear more clearly on reading the description

  detail of preferred embodiments, with reference to the appended figures in which: FIG. 1 represents a partial schematic view of

  the agricultural machine equipped with the inventive device

  tion; FIG. 2 represents a section in the device of the invention, FIG. 3 represents another embodiment of the suspension device, and

  Figure 4 shows yet another variant.

  In the figures, reference marks

  identical represent identical or analogous elements

gues.

  Referring to Figure 1, the chassis 1 of a

  agricultural machine intended to carry out work of bi-

  swimming, ridging, harrowing and spraying the soil is con-

  made up of several parts 3 and 5, part 3 of which can be folded down for road traffic by means of a winch 7 mounted between said part and the attachment 9 of the

  chassis to the towing vehicle or by means of a jack.

  The hinge 11 intended for this purpose can be unlocked by removing the pin 13 so that the part to be folded down 3 is articulated on a second

pin 15.

  The chassis possibly includes a rear arm

  removable tick 17 carrying one or more nozzles

  spray 19 supplied with product through a conduit 18.

  Advantageously, the chassis 1 comprises at least

  two wheels (not shown) adjustable in height.

  The suspension device according to the invention bears the general reference 20 and is mounted in several sets.

  rights on the chassis l of the agricultural machine, a provision

  suspension suspension being shown in detail, the au-

  very being represented schematically by lines -

  axis. According to the invention, the tool suspension 20 is mounted on the chassis 1-so as to be able to be moved horizontally in order to adapt the spacing of two tool suspensions to the lines of

  planting of the field to work which vary from crop to crop

  re to the other (beets, corn, etc>.

  In a first variant, the tools are

  xed on spacers 21 connecting the branches of the sup-

  port 23 globally affecting the shape of a V Ledit sup-

  V-shaped port 23 is integral with the upright 25 which slides in a guide 27 fixed to the chassis 1 of the machine, said guide 27 being surmounted by a cover 29 comprising a

spring 31.

  Figure 2 shows, in more detail, the arrangement

  tif of suspension of the invention in an embodiment

  preferred Advantageously, the amount includes a four-

  che 33 adjustable in height fitted with a roller or roller

  lette which presses on the ground during work and which

  puts to adjust the depth of passage of the tools in the

  earth Said tools can be fixed on spacers

  rods connecting the branches of the V, or on a second V-shaped support embedded in the first The upright 25

  and / or the guide 27 comprising means making it possible to improve

  improve the sliding of said upright 25 in the guide 27.

  These means may consist of rollers 37 mounted outside the upright or inside the guide. The guide 27 is advantageously surmounted by a cap 29 integral with the latter, which comprises, inside, a spring 31. which rests on the end of the upright and against the lower end of the cap The downward movement of the upright 25 can be limited by means of a

  pin 39 passing through it and striking the upper edge

  laughing guide 27 This assembly has the advantage of easy disassembly, when said pin 39 is removed. The force of the spring 31 can be adjusted by means of a screw 41 reducing or increasing the initial crushing of the spring. also achieve the same effect by fixing the cap 29 in an adjustable height on the

guide 27.

  FIG. 3 shows another embodiment of the invention, in which the spring 31 is arranged between

  an arm 43 secured to the upright 25 and an arm 45 secured to the

  re of the guide 27 The adjustment of the initial crushing of the spring 31 can be carried out by adjusting the position of the arm 43 on the upright 25 and / or the position of the arm 45 on the guide 27 In the embodiment shown, the adjustment in height of the fork 33 is effected by a lockable tilting of said fork around a

point of the amount 25.

  Advantageously, the adjustment of the force of the res-

  spell can also be done by moving points

of support on the arms 43 and 45.

  Figure 4 shows another variant in

  which a spring 31 of another type, in particular a spring

  blade outlet, is arranged between two arms, possibly adjustable 43 and 45 In this case, the stops limiting the

  upward and downward movements of the amount consis-

  tent in a groove made in the guide 27, in the-

  which slides a pin 39 secured to the upright.

  In the variant shown, the fork 33 can also be moved horizontally, in addition to the

  vertical adjustment, outside or inside its support.

  It is obvious that the present invention is not limited to the embodiments shown and that many other variants are possible while

  falling within the scope of this invention

  tion. Since each tool suspension is independent of each other on the complete machine, this has the great advantage of being able to better adapt

the machine in question.

  The upright can also be connected to a pneumatic, hydraulic or hydro-pneumatic circuit with or without an expansion tank so as to play the role of compensating for the movement of a suspension of tools

  on other tool suspensions.

  The tools carried by the suspension of the invention

  tion are generally teeth known per se 50, such as

  shown in Figure 4 The tool holder 51 can however

  dant also be provided with other tools, in combination or not with harrow tines, or mounted or not on such tines, for example one or more hoes, one or more ridgers, for example disc or moulders, etc.

  We therefore see that the agricultural machine equi-

  hanger of the invention adapts

  good for versatile work such as harrowing, bina-

  ge, etc. while guaranteeing efficient work for a reduced overall size While, for the parallelogram suspensions used until now, the level of the tools is always parallel to the ground, the suspension of the invention offers the possibility of tilting the tools

  tillage and therefore to achieve "soil".

  It should also be noted that the suspension spring can obviously work with double effect,

  that is to say in tension and compression.

  Similarly, the device of the invention offers the possibility of reversing the suspension of tools and the

  casters according to the operations to be carried out.

  The construction of the device also allows the user such a transformation, by removing the agricultural tools and leaving only the spraying accessories, that it is possible to treat the fields

potatoes.

  It should also be noted that the roller or the suspension fork 33 thereof may also be

spring mounted.

Claims (6)

CLAIMS.   1 Agricultural machine for hoeing, weeding   age, ridging, harrowing and other work that allows eff-   perform at least two of these works simultaneously or not, possibly in combination with a spraying of herbicides or fertilizers, characterized in that it comprises several suspensions of tools (20) arranged with adjustable spacing which each include a support d tool (23) secured to a substantially vertical upright (25) which is guided in these descending and ascending movements by a guide (27) secured to the frame (3) of   the machine, said movements being limited by bu-   tees (39) and the upward movement, acting against the effect of a spring (31).   2 agricultural machine according to claim 1 characterized in that the tool suspension comprises a   upright (25) sliding in a guide (27) which is over   mounted on a cap (29) is integral with said guide and con-   holding a spring (31) resting on the inner end   lower of the latter and on the end of the upright (25), the upper stop being the cover (29) itself and the   lower stop being constituted by a transverse pin   sant said amount (25) whose movement is limited by the end of the guide (27).   3 agricultural machine according to claim 1 characterized in that the tool suspension comprises a spring (31) disposed, possibly in an adjustable manner,   between two arms (43, 45), the first of which is fixed, possibly   height adjustable on the upright   (25) and the second of which is fixed, possibly even   height adjustable on the guide (27), the movements   elements being limited by a pin integral with the upright (25) sliding in a groove made in the guide (27).   4 Machine according to any one of the res-   dications previous characterized in that the suspen-   tool tool comprises a fork (33) carrying a roller   or a caster, said fork (33) being mounted ma-.   height adjustable on the sliding upright (25).   Machine according to any one of the preceding claims, characterized in that the upright (25) and / or the guide (27) comprise means making it possible to improve the sliding of said upright in the guide.   6 Machine according to any one of the res-   dications preceding characterized in that the tools (50) are fixed by means of tool holders (51)   to spacers (21) which connect the arms of the support   tool port globally affecting the shape of a V.   7 Machine according to any one of the res-   dications preceding characterized in that the tools (50) are fixed by means of tool holders (51) to a V-shaped element (35) embedded in the V (23) constituting the tool holder.