FR2622385A1 - Improvements to devices for compacting the ground which are mounted at the front of a tractor - Google Patents

Improvements to devices for compacting the ground which are mounted at the front of a tractor Download PDF

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Publication number
FR2622385A1
FR2622385A1 FR8715059A FR8715059A FR2622385A1 FR 2622385 A1 FR2622385 A1 FR 2622385A1 FR 8715059 A FR8715059 A FR 8715059A FR 8715059 A FR8715059 A FR 8715059A FR 2622385 A1 FR2622385 A1 FR 2622385A1
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France
Prior art keywords
tractor
devices
compacting
frame
ground
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Granted
Application number
FR8715059A
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French (fr)
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FR2622385B1 (en
Inventor
Jean Louis Cochet
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COCHET CONST MACHINES AGRICOLE
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COCHET CONST MACHINES AGRICOLE
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Priority to FR8715059A priority Critical patent/FR2622385B1/en
Publication of FR2622385A1 publication Critical patent/FR2622385A1/en
Application granted granted Critical
Publication of FR2622385B1 publication Critical patent/FR2622385B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • A01B59/00—Devices specially adapted for connection between animals or tractors and agricultural machines or implements
    • A01B59/04—Devices specially adapted for connection between animals or tractors and agricultural machines or implements for machines pulled or pushed by a tractor
    • A01B59/048—Devices specially adapted for connection between animals or tractors and agricultural machines or implements for machines pulled or pushed by a tractor having pulling or pushing means arranged on the front part of the tractor
    • 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
    • A01B29/00—Rollers
    • A01B29/04—Rollers with non-smooth surface formed of rotatably-mounted rings or discs or with projections or ribs on the roller body; Land packers
    • A01B29/041—Rollers with non-smooth surface formed of rotatably-mounted rings or discs or with projections or ribs on the roller body; Land packers of "Cambridge"-type, i.e. the soil-pressing rings being stacked on a shaft
    • A01B29/043—Tire-packers

Abstract

Improvements to devices for compacting the ground which are intended to be placed at the front of a tractor and formed of a chassis 1 provided with a frame 22 and fitted with means for hitching it to the tractor, the said frame 22 being connected by an articulated parallelogram system to a support 2 on which there are mounted wheels 3, 4, 5, 6, a thrust cylinder 28 being inserted between two adjoining branches of the parallelogram and connected via a supply circuit to a pressurised fluid distributor, characterised in that an adjustable pressure-limiting device is inserted on the supply circuit of the thrust cylinder 28.

Description

La présente invention vise des dispositifs pour le tassage du soi disposés à l'avant d'un tracteur. The present invention relates to devices for compacting the self arranged at the front of a tractor.

On connait des dispositifs qui comprennent un châssis supportant des roues et destiné à être monté sur un dispositif de relevage trois points situé à l'avant d'un tracteur. Le châssis est généralement formé d'un parallélogramme articulé et un vérin hydraulique est inséré entre deux branches voisines du parallélogramme de manière que les roues du dispositif supportent une partie du poids du tracteur et qu'ainsi une pression sensiblement égale soit appliquée sur le sol sur une surface correspondant sensiblement à l'essieu le plus long. Devices are known which comprise a chassis supporting wheels and intended to be mounted on a three-point lifting device located at the front of a tractor. The chassis is generally formed of an articulated parallelogram and a hydraulic cylinder is inserted between two branches adjacent to the parallelogram so that the wheels of the device support part of the weight of the tractor and thus a substantially equal pressure is applied to the ground on a surface corresponding substantially to the longest axle.

De tels dispositifs sont très connus et largement répandus dans l'agriculture, toutefois ils présente tent un certain nombre d'inconvénients. Such devices are very well known and widely used in agriculture, however they present a certain number of drawbacks.

Le vérin est alimenté à partir d'un distributeur du tracteur et à chaque fois -que le dispositif est relevé, il faut faire un nouveau réglage de la pression envoyée dans le vérin. The cylinder is supplied from a tractor distributor and each time the device is raised, a new adjustment must be made to the pressure sent to the cylinder.

Le dispositif se prête mal aux inégalités du sol et, dans certaines conditions de travail, risque d'être endommagé. The device does not lend itself well to uneven ground and, under certain working conditions, risks being damaged.

La présente invention a notamment pour but de remédier à ces divers inconvénients. The object of the present invention is in particular to remedy these various drawbacks.

Les perfectionnements, selon l'invention, visent des dispositifs pour tasser le sol destinés à être placés à l'avant d'un tracteur et formés d'un châssis pourvu d'un cadre muni de moyens pour son attelage au tracteur, ledit cadre étant relié par un système de parallélogramme articulé à un support sur lequel sont montées des roues, un vérin étant inséré entre deux branches voisines du parallélogramme et relié par un circuit d'alimentation à un distributeur de fluide sous pression et sont caractérisés en ce qu'un limiteur de pression réglable est inséré sur le circuit d'alimentation du vérin. Ainsi, on peut facilement régler la pression des roues sur le sol.  The improvements according to the invention relate to devices for compacting the ground intended to be placed at the front of a tractor and formed of a chassis provided with a frame provided with means for its coupling to the tractor, said frame being connected by a hinged parallelogram system to a support on which wheels are mounted, a jack being inserted between two branches adjacent to the parallelogram and connected by a supply circuit to a distributor of pressurized fluid and are characterized in that a adjustable pressure relief valve is inserted on the cylinder supply circuit. So you can easily adjust the tire pressure on the ground.

De préférence, ie circuit d'alimentation du vérin comporte une dérivation avec un accumulateur de pression et un manomètre. Une telle disposition permet d'une part de réaliser un système permettant d'absorber les chocs répercutés sur les roues dûs aux inégalités du terrain et, grâce au manomètre on peut facilement régler la pression du vérin.  Preferably, the cylinder supply circuit includes a bypass with a pressure accumulator and a pressure gauge. Such an arrangement makes it possible on the one hand to produce a system making it possible to absorb the shocks passed on to the wheels due to the unevenness of the ground and, thanks to the manometer, the pressure of the jack can easily be adjusted.

L'invention va maintenant être décrite avec plus de détails en se référant au mode de réalisation particulier donné à titre d'exemple seulement et représenté aux dessins annexés, dans lesquels
Figure 1 est une vue en perspective d'un dispositif, selon l'invention.The invention will now be described in more detail with reference to the particular embodiment given by way of example only and shown in the accompanying drawings, in which
Figure 1 is a perspective view of a device according to the invention.

Figure 2 est une vue schématique d'un détail. Figure 2 is a schematic view of a detail.

Le dispositif représenté aux figures comprend un châssis 1 comprenant un support 2 supportant quatre roues 3, 4, 5 et 6. The device shown in the figures comprises a chassis 1 comprising a support 2 supporting four wheels 3, 4, 5 and 6.

Les roues 3 et 4 sont montées folles sur un axe commun 7 supporté par un axe vertical 8 tourillonné dans un palier du support 2. La paire de roues 5 et 6 est montée de la même façon que la paire de roues 3 et 4 et l'axe vertical 9 qui supporte l'axe desdites roues est solidaire d'une biellette ll qui est reliée à une biellette 10 solidaire de l'axe vertical 8 par une barre d'accouplement 12. The wheels 3 and 4 are mounted idly on a common axis 7 supported by a vertical axis 8 journalled in a bearing of the support 2. The pair of wheels 5 and 6 is mounted in the same way as the pair of wheels 3 and 4 and the the vertical axis 9 which supports the axis of said wheels is secured to a connecting rod ll which is connected to a connecting rod 10 secured to the vertical axis 8 by a coupling bar 12.

Le support 2 est solidaire d'une potence 14 pourvue d'une chape 15 supportant un axe 16 sur lequel s'articule une extrémité d'une barre 17 dont l'autre extrémité s'articuie sur un axe 18 porté par une chape 19 solidaire d'un cadre 20. The support 2 is integral with a bracket 14 provided with a yoke 15 supporting an axis 16 on which is articulated one end of a bar 17 whose other end is articulated on an axis 18 carried by a yoke 19 integral of a frame 20.

Le cadre 20 est destiné à être fixé à un dispositif d'attelage trois points situé à l'avant d'un tracteur et est agencé à cet effet. The frame 20 is intended to be fixed to a three-point hitch device located at the front of a tractor and is designed for this purpose.

Le support 2 porte un axe 21 sur lequel s'articule un kâti 22 dont une extrémité opposée au support 2 est articulée sur un axe 23 porté par l'extrémité inférieure du cadre 20. The support 2 carries an axis 21 on which a kâti 22 is articulated, one end opposite to the support 2 is articulated on an axis 23 carried by the lower end of the frame 20.

Le bâti 22 comporte une traverse 24 pourvue d'une chape 25 supportant un axe 26 sur lequel s'articule la tige 27 du piston d'un vérin dont le corps s'articule sur un axe 30 porté par la chape 19. The frame 22 comprises a cross-member 24 provided with a yoke 25 supporting an axis 26 on which the rod 27 of the piston of a jack is articulated, the body of which is articulated on an axis 30 carried by the yoke 19.

Grâce à cette structure, on réalise un parallélogramme articulé, le vérin 28 permettant d'abaisser plus ou moins les roues 3 à 6 sur le sol.  Thanks to this structure, an articulated parallelogram is produced, the jack 28 making it possible to lower the wheels 3 to 6 more or less on the ground.

Le vérin 28 est alimenté à partir d'un distributeur prévu sur le tracteur par une canalisation 31 débouchant dans le corps du côté de la face libre du piston, une dérivation 33 étant prévue sur laquelle sont montés un accumulateur de pression 34 et un manomètre 36. The jack 28 is supplied from a distributor provided on the tractor by a pipe 31 opening into the body on the side of the free face of the piston, a bypass 33 being provided on which are mounted a pressure accumulator 34 and a pressure gauge 36 .

Le vérin 28 est relié par une canalisation 37 à un circuit de retour, tandis que sur la canalisation 31 est inséré un limiteur de pression 32 pourvu d'un organe de réglage 40, ledit limiteur de pression étant relié à la canalisation de retour 37 par une conduite 38. The cylinder 28 is connected by a pipe 37 to a return circuit, while on the pipe 31 is inserted a pressure relief valve 32 provided with an adjustment member 40, said pressure limiter being connected to the return pipe 37 by a pipe 38.

On conçoit que, grâce à cette disposition, on peut régler la pression dans ie vérin 28 à une valeur déterminée indiquée par le manomètre 36 et lorsqu'on soulèvera le châssis 1 en bout de champ pour permettre au tracteur de tourner, le réglage restera le même et il ne sera pas nécessaire de refaire le réglage comme cela se fait habituellement. It is understood that, thanks to this arrangement, the pressure in the jack 28 can be adjusted to a determined value indicated by the pressure gauge 36 and when the chassis 1 is raised at the headland to allow the tractor to turn, the adjustment will remain the even and it will not be necessary to redo the adjustment as is usually done.

L'accumulateur de pression 34 constitue un amortisseur pour absorber les chocs supportés par les roues 3 à 6. The pressure accumulator 34 constitutes a shock absorber to absorb the shocks supported by the wheels 3 to 6.

Bien entendu, l'invention n'est pas limitée au mode de réalisation qui vient d'être décrit et représenté. On pourra y apporter de nombreuses modifications de détaii sans sortir pour cela du cadre de l'invention.  Of course, the invention is not limited to the embodiment which has just been described and shown. Many modifications of detail can be made without departing from the scope of the invention.

Claims (1)

REVENDICATIONS 10 Perfectionnements aux dispositifs pour tasser le sol destinés à être placés à l'avant d'un tracteur et formés d'un châssis (1) pourvu d'un cadre (22) muni de moyens pour son attelage au tracteur, ledit cadre (22) étant relié par un système de parallélogramme articulé à un support (2) sur lequel sont montées des roues (3,4,5,6), un vérin (28) étant inséré entre deux branches voisines du parallélogramme et relié par un circuit d'alimentation à un distributeur de fluide sous pression, caractérisés en ce qu'un limiteur de pression réglable (32) est inséré sur le circuit d'alimentation du vérin (28). 10 Improvements to the devices for compacting the ground intended to be placed at the front of a tractor and formed of a chassis (1) provided with a frame (22) provided with means for its coupling to the tractor, said frame (22 ) being connected by a parallelogram system articulated to a support (2) on which are mounted wheels (3,4,5,6), a jack (28) being inserted between two adjacent branches of the parallelogram and connected by a circuit d supply to a distributor of pressurized fluid, characterized in that an adjustable pressure relief valve (32) is inserted on the supply circuit of the jack (28). 20- Perfectionnements aux dispositifs pour tasser le sol, selon la revendication 1, caractérisés en ce que le circuit d'alimentation (31) du vérin (28) comporte une dérivation avec un accumulateur de pression (34) et un manomètre (36).  20- Improvements to the devices for compacting the soil, according to claim 1, characterized in that the supply circuit (31) of the jack (28) comprises a bypass with a pressure accumulator (34) and a pressure gauge (36).
FR8715059A 1987-10-30 1987-10-30 IMPROVEMENTS IN MOUNTING DEVICES MOUNTED IN FRONT OF A TRACTOR Expired - Fee Related FR2622385B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8715059A FR2622385B1 (en) 1987-10-30 1987-10-30 IMPROVEMENTS IN MOUNTING DEVICES MOUNTED IN FRONT OF A TRACTOR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8715059A FR2622385B1 (en) 1987-10-30 1987-10-30 IMPROVEMENTS IN MOUNTING DEVICES MOUNTED IN FRONT OF A TRACTOR

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FR2622385A1 true FR2622385A1 (en) 1989-05-05
FR2622385B1 FR2622385B1 (en) 1991-05-10

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2639790A1 (en) * 1988-12-02 1990-06-08 Rabewerk Clausing Heinrich Tool for working the ground
NL1000976C2 (en) * 1995-08-14 1997-02-18 Netagco Holding Bv A push arm and an assembly of push arms in the coupling path between agricultural tractor and implement.
US6401832B1 (en) * 2000-04-17 2002-06-11 Deere & Company Agricultural implement lift wheel structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3216589A1 (en) * 1982-05-04 1983-11-10 Georg 8200 Rosenheim Albersinger Mounted-on front power lift for tractors
FR2562494A1 (en) * 1984-04-10 1985-10-11 Cochet Jean Louis Installation for controlling the orientation of the wheels of a ground levelling machine
DE8700401U1 (en) * 1987-01-09 1987-04-16 Schulte, Wilhelm, 4543 Lienen, De

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3216589A1 (en) * 1982-05-04 1983-11-10 Georg 8200 Rosenheim Albersinger Mounted-on front power lift for tractors
FR2562494A1 (en) * 1984-04-10 1985-10-11 Cochet Jean Louis Installation for controlling the orientation of the wheels of a ground levelling machine
DE8700401U1 (en) * 1987-01-09 1987-04-16 Schulte, Wilhelm, 4543 Lienen, De

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2639790A1 (en) * 1988-12-02 1990-06-08 Rabewerk Clausing Heinrich Tool for working the ground
NL1000976C2 (en) * 1995-08-14 1997-02-18 Netagco Holding Bv A push arm and an assembly of push arms in the coupling path between agricultural tractor and implement.
EP0761081A1 (en) * 1995-08-14 1997-03-12 Netagco Holding B.V. A pusher arm and also an assembly of pusher arms in the coupling mechanism between farm tractor and farm implement
US6401832B1 (en) * 2000-04-17 2002-06-11 Deere & Company Agricultural implement lift wheel structure

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Publication number Publication date
FR2622385B1 (en) 1991-05-10

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