FR2522919A1 - AGRICULTURAL ROLL OF THE TYPE "FOOT OF SHEEP" OF MODULAR DESIGN - Google Patents

Abstract

THE INVENTION RELATES TO AN AGRICULTURAL ROLLER OF THE "SHEEP'S FOOT" TYPE OF MODULAR DESIGN. LEDIT ROLL 1, INTENDED TO TREAT A PLACED OR FILLED SOIL, INCLUDES A CENTRAL FRAME 2; 11 COUPLABLE DIRECTLY OR INDIRECTLY TO A TRACTOR, AS WELL AS SEVERAL RINGS OR DISCS 14, 15, 16; 14, 15, 16 ASSOCIES AUDIT CHASSIS AND ROTATING MOUNTS. THESE DISCS 14, 15, 16; 14, 15, 16 ARE MUTUALLY REMOVABLE FLANGES, BY GROUP OR INDIVIDUALLY, AND ARE ROTATING MOUNTED ON LEDIT CHASSIS 2; 11 IN THE FORM OF INDIVIDUAL GROUPS 30, 31, BY MEANS OF AXES 3, 3. APPLICATION ESPECIALLY TO MOUTH BREAKERS OR SCARIFIERS.

Description

252291 9

  The present invention relates to an agricultural roller

  "Sheepskin" school or roller apparatus for working plowed or loosened soil, having a frame which can be directly or indirectly coupled to the towing vehicle, and a plurality of annular elements

  associated with said chassis and rotatably mounted.

  Agricultural rollers of the "sheep's foot" type and

  roll-shaped machines are used in agriculture.

  ture, as individual instruments or in combination with plows or other devices, to dissociate the thick clumps which remain on the surface of the soil after plowing and / or to firm to a certain extent the soil loosed In this case, it is necessary to obtain concomitantly

  as flat as possible. The agricultural rollers are

  known schools of the "pied de mouton" type, as well as

  roll-shaped rollers then have a frame supporting at its center an axis on which is rotatably mounted a number of annular elements, for example rings or discs These discs are sharpened at their ends to form blades, so that they chop or grind thick clods as they pass on them The rolls "pied de mouton" or devices of the type rollers are hung, either directly to the tractor,

  or indirectly to the plow or other appliances.

  The most diverse embodiments of such "sheepskin" rollers and rollers (DE-A-2 558 594) are known and are used individually or

  combined with plows or similar equipment.

  A disadvantage of known apparatus lies in the fact that their working width is predetermined, so that when circumstances change,

  a new or changed device in a very complicated way.

  In addition, the assembly and repair of the rolls "sheep's foot" are for example difficult because, when one of the disks is damaged, it is necessary to deposit the whole chassis with the axis and the disks It is then necessary to loosen a large number of fastening screws before having access

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  Another disadvantage also lies in the relatively complicated embodiment of correctly associating these discs with each other in order to be able to drag them behind the plow or the tractor. Since the discs or other known annular elements are

  rotatably mounted on an axis or on the central axis, it is inevitably

  table that earth is creeping in between these individual disks,

  clumps together and then undermines the proper functioning of the

  seems of the apparatus, in which case, for example, rolls of the type "sheepskin" can not penetrate or "bite"

  deep enough in the ground to work.

  It is therefore an object of the invention to provide a "sheepskin" type roller or comparable apparatus which can be dismounted in a modular manner, can be

  mounted easily and is safe operation.

  According to the invention, this object is achieved

  in that the annular elements are individually clamped

  dually or in groups to each other amo-

  vible and are rotatably mounted on the chassis in the form

individual groups.

  An apparatus of this type, in particular an agricultural roller of the "sheep's foot" type thus equipped, can be widened or shrunk almost at will when individual disks are attached by clamping or disassembled by unclamping.

  makes it much easier to assemble and repair such

  reilscar it is sufficient, each time, to loosen the screws of

  solidarization only in the region of the damaged disk.

  Advantageously, the presence -

  of a central axis, so that the embodiment of the whole device can also be considerably simplified and made less expensive At the same time, giving up a central axis significantly reduces the risk of obstructions in the device because the inner region of the roll remains

  free and because all the discs rotate together.

  Of course, it is fundamentally known to have for example the discs of a "sheepskin" roll on the outside of a frame (patent GB-868 394), but this known device is part of a tractor and chassis of support is in itself designed, as in the apparatuses and rolls "foot of sheep" previously known, so that only this frame itself is directly connected to the towing vehicle Moreover, this known device has discs that rotate indivi - dually and which are wedged on the central axis Thus, in principle, it is affected the same disadvantages as the

  other known rolls of the type "sheep's foot".

  In accordance with the invention, to achieve a link

  its convenient between the mutually clamped annular elements and the frame, these annular elements are mounted on a central frame via an axis having, at one of its ends or on either side, flanges

  corresponding to said annular elements With these flasks

  forming the ends of the axis, the mounting of the annular elements is facilitated and it is further ensured that the annular members assembled by clamping roll in a manner

  uniform and regular on the soil surface.

  According to the invention, a particularly

  of the annular elements with each other and with the flanges of the shaft is that these annular elements preferably made in the form of rings or discs and serving as such discs or rings> are clamped to each other and on the axis in three points of connection For this reason, it is for example conferred to the roller "foot of sheep"

  a favorable and stable form of realization and subject

  mutual support of individual disks also

the strongest constraints.

  For the purpose of simplification, the invention will be explained hereinafter with reference to the example of a roll

  "foot of sheep" type, although the characteristics

  of the invention may also be applied

  basically identical to other devices.

  According to the invention, to ensure the large free space needed and desired inside the roll,

  the points of contact occupy a position which is

  mid-way between the center of the disc and the circumferential crown of the latter With this arrangement, it is ensured that the roll can penetrate the soil to a sufficient depth and grind clumps, because the junctions between the individual discs are sufficiently far from the central point At the same time, these junctions between the disks act advantageously in the manner of rays which, in pre-

  the presence of very coarse clumps, also contribute to

to crush them.

  Advantageously, to simplify the assembly of the dis-

  rollers, these discs have bores in the

  the area of the points of connection and between these respective points.

  In this way, without any difficulty and without exercising any

  influence on the already existing link between global disks

  In this way, the discs are clamped to each other at respective mutually offset connection points. The development of the bores further enhances the principle of the modular construction. which is advantageously

  put forward by the solution proposed by the invention.

  Conveniently spacer elements acting as spacers are interposed between the individual disks in the area of their connection points. Thus, an interval

  always regular between the discs is guaranteed and the possibi-

  At the same time, it is possible to incorporate or arrange by protecting the nuts and bolts or screws necessary to establish the connection. For this purpose, the spacers are, for example, widened at their ends by covering

nuts or screws.

  According to another advantageous embodiment, the spacers are associated in each case with part of the disks and with one side.

  thus protruding laterally may be provided with

  tages at their free ends, so that it suffices to insert and screw three fastening screws through the disc

  to be connected or reported in order to mount and possibly

  you also disassemble such an additional disk He

  It is also possible to foresee on both sides

  respective spacing decisions which are accordingly more

  short, then to secure each other by bridging

  individual screws with screws of corresponding lengths. Advantageously, the central frame is disposed in the middle of such a farm roll "sheep's foot" It is then advisable to make this central frame in the form of a spar whose width substantially corresponds to the

  distance separating each other from the individual disks.

  In this way, no space remains in the central zone which is not influenced or worked by the discs, which advantageously contributes to giving its regularity to the surface of the treated floor. It should also be noted that a central frame arranged in this way in the middle of the roll makes it possible to produce this roll, in itself with practically

  any desired width.

  To improve the efficiency of the rollers, it may be necessary or advisable to have several rollers of this type one behind the other, for example to obtain what is called a double roll type "sheep's foot" For this purpose, according to the invention, it is particularly advantageously provided that two central frames are connected to one another, in succession, by means of supports which, mutually offset and abutting against a cross, are guided to oblique upward through circumferential crowns

  In these conditions, the two rollers are

  each other and they are partially nested one

  in the other so that the second roll becomes precise-

  The two rollers thus form a working group (more precisely the aforementioned double roll of the type

  "sheep's foot") which can also be expanded or extended further

  still in the direction of travel without any additional measurement from the point of view of realization The relatively short length of such a double roll comprising two

rolls is advantageous.

  In order to keep the intervals between the individual disks as small as possible and at the same time not to make the

  mounting of these individual discs, it is planned according to

  The flanges, of triangular configuration and pierced with holes in their corners, are placed at the ends of the axis and at a distance from the central frame. As a result of this particular embodiment of the flanges, each individual disc can be easily pulled out. above these and be fixed from the other side, so that it

  then be located between the central frame and each flange.

  According to the invention, in the presence of rollers

  agricultural enterprises formed by numerous disks joined together

  In this case, the grouping and steering of the group are facilitated by the fact that the groups mounted at the two ends of the central frame can rotate independently of one another. For example, this is achieved by the fact that one of these groups is directly on the axis at one end, while the other group is connected to a flange which can itself

  turn on said axis by means of a socket

  Such rolls are thus considerably improved. Depending on the size of the surface to be plowed or treated, it may be advantageous to work with

  groups of rollers protruding widely in door-to-door

  To allow this, and to ensure the stability of the entire system, it may be convenient, in the presence of large groups, to provide additional central frames relegated outside of said groups or interposed between them These central frames can

  be connected to each other and to the central framework rendered

tractor.

  The invention is characterized in particular by the fact that it proposes a modular design system in which the agricultural rollers can, to a large extent and according to each use case considered, be widened, kept narrower or elongated without requiring for this purpose the presence of other rollers It is only necessary

  to bring back new disks or demon-

  The inner space of the rollers is completely free from other parts due to the three-point connection and the particular arrangement of the spacers. of the machine, so that, advantageously, it is hardly such rollers

  or other devices may be obstructed.

  The invention will now be described in more detail with reference to the accompanying drawings by way of non-limiting examples and in which: FIG. 1 is a partial sectional plan view of an agricultural roller of the "sheep's foot" type; ; Figure 2 is a side elevation partially cut away from this roller; Figure 3 is a partially cutaway plan view of an individual disk of said roller; and

  Figure 4 is a side elevation of such a disc.

  FIG. 1 represents a combined roll 1 of the "sheep's foot" type, comprising several rings or disks which are only mentioned. A central frame 2, realized

  in the form of a spar, supports at one of its extremes

  3 is an axis 3, as also shown in Figure 2 This axis 3 has at its ends flanges 4 and 5 which are of triangular configuration and are drilled in their hole angles in the area of which the connection with the roll discs can be established using fastening screws

6 and 7.

  Through a support 8 oriented obliquely upwards, the central frame 2 can be connected to a cross member 9 on which is articulated another offset support

  supporting an axis 3 'and a central frame 11

  in the manner described, the combined roll is assembled with the individual disks 14,15,16 and 14 ', 15', 16 'each time shifted away from each other.

  qualified as "double roll of the type of sheep's foot".

  The disks 14, 15 and 16 move on the ground or

  penetrate the earth by their circumferential crown.

  For this purpose, said disks 14, 15 and 16 have a tapered outer ring 17, as illustrated for example

  in the case of the disk 14 in FIG.

  FIG. 3 represents an individual disk 14 on which connection points 20, 21 and 22 are approximately halfway between the circumferential ring 17 and a center 18 of the disk. Said connection points 20, 21 and 22 between Individual discs 14, 15 and 16 generally consist of bores 25 and 26 by which it is necessary to engage screws or bolts of connection In the example shown, are provided on one (28) of the faces of the disc 14 , spacers 23 and 24 which are traversed by the bores and which may have at their free end threads to facilitate the connection with the respective disk Next for each of the discs 14,15 and 16 are provided three elements 23,24 of this type which co Incident with the connection points 20,21 and 22 Between these are formed each time other bores 26 to facilitate the mounting of the next disc, which

  can be executed without having to break the links first

  sounds in the area of points 20, 21 and 22 or bore 25.

  FIG. 4, which is a side elevation of the disk according to FIG. 3, shows the distances separating respectively the individual connecting points 20, 21 and 22 or the bores 25 and 26 of the center 18 of the disk or of the circumferential ring. 17 of the latter As is apparent from Figure 1, such disks 14,15 and 16 can be assembled into groups 30 and 31 and be installed on one side

  or at both ends of the central frame 2.

  It goes without saying that many modifications can be made to the roll described and shown, without leaving

of the scope of the invention.

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Claims (9)

  1 Agricultural roll of the "pied de mouton" type or   roll-shaped reel for treating plowed or loosened soil and comprising a frame which can be directly or indirectly coupled to the towing vehicle, as well as a plurality of annular elements associated with said chassis and rotatably mounted, characterized in that the annular elements ( 14,15,16) are releasably clamped to each other indi vidually or in groups and are mounted   rotating on said chassis (2) in the form of a   pectif. 2 roller according to claim 1, characterized in that the annular elements (14,15,16) are mounted on a central frame (2) via an axis (3) which has, on one side or at both ends, flanges   (4,5) corresponding to said annular elements.   Roll according to one of claims 1 and 2,   characterized in that the annular elements in the form of rings or disks (14, 15, 16) are clamped to one another or to the axis (3) at three connection points (20,21,22).   4 roll according to claim 3, characterized in that the connection points (20,21,22) are substantially midway between the center (18) of the disc and   the outer circumferential ring (17) of this disc.   Roll according to any one of the claims   1 to 3, characterized in that the discs (14, 15, 16) have bores (25, 26) in the region of the connecting points (20, 21, 22) and in the respective areas between them. last.   Roller according to one of claims 1 and 3,   characterized by spacers (23,24) installed in the area of the connection points (20,21,22) between   the individual discs (14,15,16) act as fathoms.   Roll according to Claim 6, characterized by   the spacers (23,24) are respectively   associated with a part of the discs (14, 15, 16) and a face (28).   8 Roller according to claim 1, characterized in that the central frame (2) is formed as a spar whose width corresponds approximately to the distance between them the individual discs (14, 16). 9 roller according to claim 1, characterized in that two central frames (2,11) are connected to each other, in succession, by supports (8,10) which, offset one of the other and abutting against a crossbar (9),   are guided obliquely upwards by the circumferential crowns   External ferentials (17) of the disks.   Roller according to claim 2, characterized in that the flanges (4,5), of triangular configuration and pierced with holes in their corners, are placed at one end of the axis (3) and at a distance from the frame central (2).   Roll according to one of claims 1 and 2,   characterized in that the groups (30,31) mounted to the   two ends of the central frame can rotate independently from each other.   Roll according to one of Claims 1 and 2,   characterized in that in the presence of groups (30,31)   large dimensions, the central frames are sup-   (2,11) which are relegated to the outside of said   groups or intercalated between them.