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 PDFInfo
- 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
- Authority
- 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
Links
- 230000007423 decrease Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000219112 Cucumis Species 0.000 description 1
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 description 1
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B61/00—Devices for, or parts of, agricultural machines or implements for preventing overstrain
- A01B61/04—Devices for, or parts of, agricultural machines or implements for preventing overstrain of the connection between tools and carrier beam or frame
- A01B61/044—Devices 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
- A01B61/046—Devices 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Soil Working Implements (AREA)
Abstract
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)
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 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2469094A1 true FR2469094A1 (en) | 1981-05-22 |
Family
ID=9231383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7927439A Pending FR2469094A1 (en) | 1979-11-07 | 1979-11-07 | Ground contour following plough - has hinging beam with rocker releasing spring return beyond predetermined pivot angle |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2469094A1 (en) |
Cited By (5)
| 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)
| 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 |
-
1979
- 1979-11-07 FR FR7927439A patent/FR2469094A1/en active Pending
Patent Citations (5)
| 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)
| 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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