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FR2469094A1 - Ground contour following plough - has hinging beam with rocker releasing spring return beyond predetermined pivot angle - Google Patents

Ground contour following plough - has hinging beam with rocker releasing spring return beyond predetermined pivot angle Download PDF

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Publication number
FR2469094A1
FR2469094A1 FR7927439A FR7927439A FR2469094A1 FR 2469094 A1 FR2469094 A1 FR 2469094A1 FR 7927439 A FR7927439 A FR 7927439A FR 7927439 A FR7927439 A FR 7927439A FR 2469094 A1 FR2469094 A1 FR 2469094A1
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FR
France
Prior art keywords
plow
age
pivot
return means
rocker
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
FR7927439A
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French (fr)
Inventor
Yves Brun
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HUARD UCF
Original Assignee
HUARD UCF
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HUARD UCF filed Critical HUARD UCF
Priority to FR7927439A priority Critical patent/FR2469094A1/en
Publication of FR2469094A1 publication Critical patent/FR2469094A1/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01BSOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B61/00Devices for, or parts of, agricultural machines or implements for preventing overstrain
    • A01B61/04Devices for, or parts of, agricultural machines or implements for preventing overstrain of the connection between tools and carrier beam or frame
    • A01B61/044Devices for, or parts of, agricultural machines or implements for preventing overstrain of the connection between tools and carrier beam or frame the connection enabling a yielding pivoting movement around a substantially horizontal and transverse axis
    • A01B61/046Devices for, or parts of, agricultural machines or implements for preventing overstrain of the connection between tools and carrier beam or frame the connection enabling a yielding pivoting movement around a substantially horizontal and transverse axis the device including an energy accumulator for restoring the tool to its working position

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Soil Working Implements (AREA)

Abstract

The plough is for uninterrupted work, with a beam supporting the plough body and hinging at the forward end on an axis at right angles to the travel direction. The beam is held in the working position by a spring allowing it to swing upwards. Where the spring (9,10) is mounted on the frame (1,2) it is accommodated in a rocker (12,12a,12b) releasing the spring beyond a predetermined pivot angle, so that the beam can continue to pivot against a reduced opposing force.

Description

I1 existe de nombreux dispositifs permettant le labour dans des terrains difficiles, tels que la charrue soit capable de s'effacer quand elle rencontre un obstacle trop important et de revenir ensuite à sa position initiale de labour. De tels dispositifs sont connus sous le nom de dispositif de sécurité non stop, c'est-à-dire permettant le labour sans interruption, quels que soient les obstacles rencontrés et sans que le conducteur du tracteur ait à intervenir pour remettre la charrue en position de labour après quelle se soit effacée devant l'obstacle. I1 are many devices allowing plowing in difficult terrain, such that the plow is able to fade when it encounters an obstacle too important and then return to its initial plowing position. Such devices are known by the name of non-stop safety device, that is to say allowing plowing without interruption, whatever the obstacles encountered and without the tractor driver having to intervene to return the plow to position. of plowing after it has disappeared before the obstacle.

On peut citer à cet égard les brevets U.S.A. 3 789 928, 3 517 748, 3 420 315, les brevets français 70-00546, 72-25107, 71-18285, 73-07472, 72-15650, 77-10350, ainsi que les brevets français de la demanderesse 75-06328, 75-15007, 76-01790. In this regard, we can cite the US patents 3,789,928, 3,517,748, 3,420,315, French patents 70-00546, 72-25107, 71-18285, 73-07472, 72-15650, 77-10350, as well as Applicant's French patents 75-06328, 75-15007, 76-01790.

Ces dispositifs connus comportent généralement un age supportant le corps de labour dont l'extrémité avant est articulée autour d'un pivot transversal au sens d'avancement. L'age est maintenu en place par un système de rappel, tel qu'un ressort, disposé au-dessus de l'age. En fonction de la position du pivot et de la puissance du système à ressort on obtient un certain angle de pivotement. These known devices generally include an age supporting the plowing body whose front end is articulated around a pivot transverse to the direction of advance. The age is held in place by a return system, such as a spring, disposed above the age. Depending on the position of the pivot and the power of the spring system, a certain pivot angle is obtained.

Cependant, certains de ces dispositifs conduisent à des fabrications compliquées et coûteuses, tandis que d'autres fabrications, plus simples, conduisent à des contraintes élevées dans le mécanisme, du fait de la puissance des moyens de rappel en position de labour, dès que les angles de pivotement que l'on cherche à obtenir sont suffisamment élevés pour donner satisfaction. However, some of these devices lead to complicated and costly manufacturing, while other simpler manufacturing leads to high stresses in the mechanism, due to the power of the return means in the plowing position, as soon as the pivot angles that we seek to obtain are sufficiently high to give satisfaction.

L'invention se propose d'augmenter cet angle de pivotement et donc la hauteur de soulèvement du soc, sans augmenter les contraintes dans le mécanisme. The invention proposes to increase this pivoting angle and therefore the height of lifting of the share, without increasing the stresses in the mechanism.

A cet effet, la charrue selonl'invention comporte, interposé au niveau de la fixation, sur le bati de la charrue, du moyen de rappel de l'age et du soc vers la position de labour, un système basculeur qui provoque, au-dela d'un angle prédéterminé de pivotement, une détente du moyen de rappel et permet à l'age de poursuivre son pivotement avec une diminution relative de l'effort de rappel. To this end, the plow according to the invention comprises, interposed at the level of the fixing, on the frame of the plow, of the means for returning the age and the ploughshare to the plowing position, a tilting system which causes, beyond a predetermined pivot angle, a relaxation of the return means and allows the age to continue its pivoting with a relative decrease in the return force.

melon une forme préférée de réalisation de l'invention le moyen de rappel est un ressort à lames ou équivalent (vérin hydraulique ou pneumatique} dont une extrémité est pivotée sur une pièce liée à l'age de la charrue et dont l'autre extrémité tourillonne à l'extrémité d'une pièce qui pivote sur un support porté par le bati de la charrue entre deux positions de butée, l'axe de tourillonnement du ressort sur ladite pièce étant placé au-dessus de la ligne joignant le pivot de cette pièce sur le bâti au pivot du ressort sur l'age, mais suffisamment proche de cette ligne pour que les trois pivots viennent en alignement au cours du soulèvement du soc. melon a preferred embodiment of the invention the return means is a leaf spring or equivalent (hydraulic or pneumatic cylinder}, one end of which is pivoted on a part linked to the age of the plow and the other end of which rotates at the end of a part which pivots on a support carried by the frame of the plow between two stop positions, the axis of swiveling of the spring on said part being placed above the line joining the pivot of this part on the frame at the pivot of the spring on the age, but close enough to this line so that the three pivots come into alignment during the lifting of the share.

On conçoit dès lorsque, lorsque cet alignement est atteint, la pièce intermédiaire pivotante sur le support lié au bâti, vient à basculer, ce qui provoque une détente du ressort et autorise la continuation de son mouvement de soulèvement avec une diminution de l'effort de rappel. We can see when, when this alignment is reached, the pivoting intermediate piece on the support linked to the frame, comes to tilt, which causes the spring to relax and allows its lifting movement to continue with a reduction in the force of reminder.

L'invention sera plus amplement décrite ci-après avec référence au dessin annexé sur lequel on a représenté schématiquement :
Figure 1, la charrue en position de labour,
Figure 2, la charrue en cours de soulèvement.
The invention will be described more fully below with reference to the attached drawing in which a diagrammatic representation has been made:
Figure 1, the plow in the plowing position,
Figure 2, the plow being lifted.

Sur ces figures on n'a représenté qu'un seul corps de charrue en coupe latérale. In these figures, only one plow body has been shown in lateral section.

Sur le châssis 1 de la charrue est fixé un support en forme de potence 2 qui comporte un pivot 3, perpendiculaire à l'avancement. L'age 4 de la charrue sur lequel est fixé le corps de labour 5 tourillonne autour du pivot 3. Sur l'extrémité arrière de l'age 4 est articulée en 6 une chape 7 comportant à l'arrière une butée à vis réglable 8 et à son extrémité supérieure un axe 9. On the frame 1 of the plow is fixed a support in the form of a jib 2 which comprises a pivot 3, perpendicular to the advancement. The age 4 of the plow on which the plow body 5 is fixed pivots around the pivot 3. On the rear end of age 4 is articulated in 6 a yoke 7 comprising at the rear an adjustable screw stop 8 and at its upper end an axis 9.

Le maintien de l'age en position de travail est assuré par un ressort à lames 10, dont l'extrémité arrière tourillonne sur l'axe 9 et dont l'extrémité avant tourillonne sur l'axe 11 du basculeur 12. Le basculeur 12 peut pivoter autour de l'axe 13 en venant buter-par ses faces 12a ou 12b sur la butée 14 solidaire de la potence 2. Maintaining the age in the working position is ensured by a leaf spring 10, the rear end of which pivots on the axis 9 and the front end of which pivots on the axis 11 of the rocker 12. The rocker 12 can pivot around the axis 13 coming to abut by its faces 12a or 12b on the stop 14 secured to the bracket 2.

Le basculeur 12 est conformé de telle sorte que l'axe 1 se trouve situé entre l'axe 13 et l'axe 9 et peu au-dessus de la ligne joignant ces deux axes, la distance séparant l'axe 11 de cette ligne étant suffisamment faible pour que les trois axes 11, 13 et 9 viennent en alignement lors d'un soulèvement de la charrue 5 avant que la face 12b du basculeur 12 vienne en butée sur la pièce 14
Le fonctionnement est le suivant : lorsque le soc rencontre un obstacle 16, l'age 4 a tendance à pivoter vers le haut autour de l'axe 3. Il ne peut le faire que pour un effort supérieur au tarage initial du ressort qui est réglable par l'intermédiaire de la vis 8 en faisant varier la flèche initiale du ressort. Si l'obstacle s'efface sous la poussée de la charrue, l'age reste en place.
The rocker 12 is shaped so that the axis 1 is located between the axis 13 and the axis 9 and little above the line joining these two axes, the distance separating the axis 11 from this line being sufficiently weak so that the three axes 11, 13 and 9 come into alignment during a lifting of the plow 5 before the face 12b of the rocker 12 comes into abutment on the part 14
The operation is as follows: when the ploughshare meets an obstacle 16, the age 4 tends to pivot upwards around the axis 3. It can only do this for a force greater than the initial setting of the spring which is adjustable by means of screw 8 by varying the initial deflection of the spring. If the obstacle clears under the push of the plow, the age remains in place.

Si l'obstacle reste en place, l'age pivote vers le haut en faisant fléchir le ressort (figure 2). L'effort dans le ressort va donc croître pendant le basculement de l'age. If the obstacle remains in place, the age pivots upwards by bending the spring (figure 2). The force in the spring will therefore increase during the tilting of the age.

Lorsque l'age a pivoté d'un angle suffisant, les trois axes 9, tl et 13 seront alignés. C"est à ce moment qu'entre en jeu le basculeur 12 : l'age continuant à pivoter, le basculeur va pivoter pour amener la face 12b sur la butée 14, comme représenté en trait mixte sur la figure 2. La flèche du ressort 10 diminue donc et permet à l'age 4 de continuer son pivotement jusqu'à la butée 15, qui est placée dans une position correspondant à la contrainte maximum admissible pour le ressort 10.When the age has pivoted by a sufficient angle, the three axes 9, tl and 13 will be aligned. It is at this moment that the rocker 12 comes into play: the age continuing to pivot, the rocker will pivot to bring the face 12b to the stop 14, as shown in phantom in Figure 2. The arrow of the spring 10 therefore decreases and allows age 4 to continue its pivoting until the stop 15, which is placed in a position corresponding to the maximum admissible stress for the spring 10.

Si donc il n'y avait pas eu de basculeur, la contrainte maximum dans le ressort courait été atteinte avant que l'age vienne sur la butée 15, et cela n aurait pas permis de relever le corps de labour aussi haut. If therefore there had been no rocker, the maximum stress in the spring was reached before the age came on the stop 15, and this would not have made it possible to raise the plow body as high.

Ce meme mécanisme avec basculeur peut etre monté avec tous types de ressorts et également avec un vérin hydraulique ou pneumatique pour lesquels on obtiendra une diminution de la pression d'utilisation en fin de basculement. This same mechanism with rocker can be mounted with all types of springs and also with a hydraulic or pneumatic cylinder for which a reduction in the operating pressure will be obtained at the end of rocking.

On et en particulier prévoir, commue moyen de rap
pel élastique, un vérin hydraulique couplé ou associe
à un accumulateur oléopneumatique.
One and in particular to envisage, commue means of rap
elastic pel, a hydraulic cylinder coupled or associated
to an oleopneumatic accumulator.

Claims (4)

REVENDICATIONS 1. Perfectionnements aux charrues pour le labour sans interruption, dans lesquelles un age supporte le corps de labour dont l'extrémité avant est articulée autour d'un pivot transversal au-sens d'avancement, ledit age étant maintenu en position de labour par un système de rappel élastique qui autorise un pivotement du corps de labour vers le haut, caractérisé en ce que la charrue comporte, interposé au niveau de la fixation, sur le bâti de la charrue, du moyen de rappel de l'age et du soc vers la position de labour, un système basculeur qui provoque, au-delà d'un angle prédéterminé de pivotement, une détente du moyen de rappel et permet à l'age de poursuivre son pivotement avec une diminution relative de l'effort de rappel. 1. Improvements to plows for continuous plowing, in which an age supports the plow body whose front end is articulated around a transverse pivot in the direction of advance, said age being maintained in the plowing position by a elastic return system which allows the plow body to pivot upwards, characterized in that the plow comprises, interposed at the level of the attachment, on the frame of the plow, means for returning the age and the share towards the plowing position, a tilting system which causes, beyond a predetermined pivot angle, a relaxation of the return means and allows the age to continue its pivoting with a relative decrease in the return force. 2. Charrue perfectionnée selon la revendication 1, caractérisée en ce que le moyen de rappel élastique comporte une extrémité pivotée sur une pièce liée à l'age de la charrue, l'autre extrémité étant tourillonnée sur une pièce qui pivote sur un support porté par le bati de la charrue entre des positions de butée, l'axe de tourillonnement du moyen de rappel sur ladite pièce étant placé au-dessus de la ligne joignant le pivot de cette pièce sur le bâti au pivot du moyen de rappel sur l'age, mais suffisamment proche de cette ligne pour que les trois pivots viennent én alignement au cours du soulèvement du soc. 2. Improved plow according to claim 1, characterized in that the elastic return means comprises one end pivoted on a part linked to the age of the plow, the other end being journalled on a part which pivots on a support carried by the frame of the plow between stop positions, the journal axis of the return means on said part being placed above the line joining the pivot of this part on the frame to the pivot of the return means on the age , but close enough to this line so that the three pivots come into alignment during the lifting of the share. 3. Charrue -selon l'une quelconque des revendications 1 et 2, caractérisée en ce que la pièce liée à l'age de la charrue et sur laquelle pivote le moyen de rappel est montée ellememe pivotante sur l'age, une butée à vis réglable permettant de régler sa position angulaire et par suite, le tarage initial du moyen de rappel. 3. Plow - according to any one of claims 1 and 2, characterized in that the part linked to the age of the plow and on which pivots the return means is itself pivotally mounted on the age, a screw stop adjustable to adjust its angular position and therefore the initial calibration of the return means. 4. Charrue selon l'une quelconque des revendications précédentes, caractérisée en ce que le moyen de rappel élastique est un ressort 5.- Charrue selon I Lsune quelconque des rev-enRica- tions précédentes, caractérisée en ce que le moyen élastique est un verin hydraalique associé (i un accuroulateur oléopneil- mastique.  4. Plow according to any one of the preceding claims, characterized in that the elastic return means is a spring 5.- Plow according to any one of the preceding rev-enRica- tions, characterized in that the elastic means is a jack associated hydraalics (i an oleopneilmastic accuroulator.
FR7927439A 1979-11-07 1979-11-07 Ground contour following plough - has hinging beam with rocker releasing spring return beyond predetermined pivot angle Pending FR2469094A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7927439A FR2469094A1 (en) 1979-11-07 1979-11-07 Ground contour following plough - has hinging beam with rocker releasing spring return beyond predetermined pivot angle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7927439A FR2469094A1 (en) 1979-11-07 1979-11-07 Ground contour following plough - has hinging beam with rocker releasing spring return beyond predetermined pivot angle

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FR2469094A1 true FR2469094A1 (en) 1981-05-22

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2591415A1 (en) * 1985-12-16 1987-06-19 Mach Agricoles Cie Fse Safety device for reversible ploughs
JPS62172302U (en) * 1986-04-24 1987-10-31
JPS62181101U (en) * 1986-05-12 1987-11-17
FR2669182A1 (en) * 1990-11-15 1992-05-22 Kverneland Klepp As SUSPENSION AND DAMPING ARRANGEMENT FOR PLOW BODY.
US20230180647A1 (en) * 2021-12-14 2023-06-15 McFarlane Manufacturing Co. Agriculture implement and mounting assembly

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2000093A1 (en) * 1968-01-09 1969-08-29 Kyllingstad Plogfab As IMPROVEMENTS IN AGRICULTURAL INSTRUMENTS
FR2090170A1 (en) * 1970-05-20 1972-01-14 Rabewerk Clausing Heinrich
FR2174911A1 (en) * 1972-03-03 1973-10-19 Rabewerk Clausing Heinrich
FR2389313A1 (en) * 1977-05-05 1978-12-01 Gregoire & Cie Besson Plough locking and release mechanism - has pivoted quadrilateral linkage with spring normally acting in line below pivot point of link connected to spring support
DE2728431A1 (en) * 1977-06-24 1979-01-11 Krone Bernhard Gmbh Maschf Plough with automatic reset overload trip - has pivoted mould board support acted on by return spring which is normally opposed by auxiliary reset force

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2000093A1 (en) * 1968-01-09 1969-08-29 Kyllingstad Plogfab As IMPROVEMENTS IN AGRICULTURAL INSTRUMENTS
FR2090170A1 (en) * 1970-05-20 1972-01-14 Rabewerk Clausing Heinrich
FR2174911A1 (en) * 1972-03-03 1973-10-19 Rabewerk Clausing Heinrich
FR2389313A1 (en) * 1977-05-05 1978-12-01 Gregoire & Cie Besson Plough locking and release mechanism - has pivoted quadrilateral linkage with spring normally acting in line below pivot point of link connected to spring support
DE2728431A1 (en) * 1977-06-24 1979-01-11 Krone Bernhard Gmbh Maschf Plough with automatic reset overload trip - has pivoted mould board support acted on by return spring which is normally opposed by auxiliary reset force

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2591415A1 (en) * 1985-12-16 1987-06-19 Mach Agricoles Cie Fse Safety device for reversible ploughs
JPS62172302U (en) * 1986-04-24 1987-10-31
JPS62181101U (en) * 1986-05-12 1987-11-17
FR2669182A1 (en) * 1990-11-15 1992-05-22 Kverneland Klepp As SUSPENSION AND DAMPING ARRANGEMENT FOR PLOW BODY.
ES2034869A1 (en) * 1990-11-15 1993-04-01 Kverneland Klepp As Suspension device for a plow
US20230180647A1 (en) * 2021-12-14 2023-06-15 McFarlane Manufacturing Co. Agriculture implement and mounting assembly

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