FR2830166A1 - Self-locking hitch for attaching machine to tractor comprises frame on tractor carrying two horizontal bars, frame on machine having hook fitting over upper bar and hook on catch fitting over lower bar - Google Patents

Self-locking hitch for attaching machine to tractor comprises frame on tractor carrying two horizontal bars, frame on machine having hook fitting over upper bar and hook on catch fitting over lower bar Download PDF

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Publication number
FR2830166A1
FR2830166A1 FR0112483A FR0112483A FR2830166A1 FR 2830166 A1 FR2830166 A1 FR 2830166A1 FR 0112483 A FR0112483 A FR 0112483A FR 0112483 A FR0112483 A FR 0112483A FR 2830166 A1 FR2830166 A1 FR 2830166A1
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France
Prior art keywords
notch
frame
tractor
hook
machine
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Granted
Application number
FR0112483A
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French (fr)
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FR2830166B1 (en
Inventor
Jean Louis Cochet
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Cochet SA
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Cochet SA
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Priority to FR0112483A priority Critical patent/FR2830166B1/en
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Publication of FR2830166B1 publication Critical patent/FR2830166B1/en
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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
    • A01B59/06—Devices specially adapted for connection between animals or tractors and agricultural machines or implements for machines mounted on tractors
    • A01B59/061—Devices specially adapted for connection between animals or tractors and agricultural machines or implements for machines mounted on tractors specially adapted for enabling connection or disconnection controlled from the driver's seat
    • A01B59/062—Devices specially adapted for connection between animals or tractors and agricultural machines or implements for machines mounted on tractors specially adapted for enabling connection or disconnection controlled from the driver's seat the connection comprising a rigid interface frame on the tractor
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3645—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with auto-engagement means for automatic snap-on of the tool coupler part

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Zoology (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Machines (AREA)

Abstract

The self-locking hitch for attaching a machine to a tractor comprises a frame (14) mounted on the tractor which carries an upper (16) and lower (17) horizontal bar. A second frame (1) is attached to the machine and has a hook (19) which fits over the upper bar. A lower hook (4) on a swiveling catch (3) fits over the lower bar and is locked in this position by a notch (6) which fits over the lower end of a lug (8) mounted above it on the frame.

Description

<Desc/Clms Page number 1> <Desc / Clms Page number 1>

La présente invention vise un dispositif d'attelage et de verrouillage automatique d'une machine agricole à l'arrière d'un tracteur.  The present invention relates to a device for automatically coupling and locking an agricultural machine at the rear of a tractor.

L'un des buts de l'invention est de réaliser un dispositif permettant, avec une manoeuvre simple, d'atteler une machine à l'arrière d'un tracteur et de verrouiller l'attelage avec une grande sécurité.  One of the objects of the invention is to provide a device making it possible, with a simple operation, to couple a machine to the rear of a tractor and to lock the coupling with great safety.

\
Le dispositif, selon l'invention, est du type comprenant un support monté à l'arrière d'un tracteur et comprenant une première barre horizontale supérieure et une seconde barre horizontale inférieure et un bâti solidaire de la machine agricole à atteler et comportant une ouverture avec une échancrure pour recevoir la barre horizontale supérieure et une entaille pour recevoir la barre horizontale inférieure et des moyens de verrouillage de cette dernière dans l'entaille, ledit dispositif étant caractérisé en ce qu'au voisinage de l'entaille, sur le bâti, est monté basculant un verrou présentant une encoche destinée, dans une position de verrouillage, à fermer l'entaille du bâti, ledit verrou présentant un talon destiné à coopérer avec une surface d'appui d'un mentonnet articulé sur le bâti, le verrou et le mentonnet étant relié par un ressort de traction tendant à maintenir le talon contre ladite surface d'appui dans une position d'attente, ledit verrou comportant un cran ménagé entre le talon et l'encoche et destiné à coopérer avec un bec du mentonnet dans la position de verrouillage. \
The device according to the invention is of the type comprising a support mounted at the rear of a tractor and comprising a first upper horizontal bar and a second lower horizontal bar and a frame integral with the agricultural machine to be coupled and comprising an opening with a notch to receive the upper horizontal bar and a notch to receive the lower horizontal bar and means for locking the latter in the notch, said device being characterized in that in the vicinity of the notch, on the frame, is mounted tilting a lock having a notch intended, in a locking position, to close the notch of the frame, said lock having a heel intended to cooperate with a bearing surface of a stud articulated on the frame, the lock and the chin being connected by a tension spring tending to hold the heel against said bearing surface in a waiting position, said latch com carrying a notch formed between the heel and the notch and intended to cooperate with a beak of the chin in the locked position.

Grâce à cette disposition, lorsque le tracteur est reculé, la barre inférieure bute contre le verrou et fait échapper le talon de la surface d'appui du mentonnet dont le bec vient s'insérer dans le cran.  Thanks to this arrangement, when the tractor is moved back, the lower bar abuts against the latch and makes the heel escape from the bearing surface of the chin, the beak of which comes to be inserted into the notch.

<Desc/Clms Page number 2> <Desc / Clms Page number 2>

Comme le bec est maintenu dans le cran par l'action du ressort, le verrouillage est très efficace et offre une grande sécurité.  As the spout is held in the notch by the action of the spring, the locking is very effective and offers great security.

Suivant une caractéristique de détail, le mentonnet est solidaire d'un levier pour commander son basculement et l'amener depuis la position de verrouillage à une position d'attente.  According to a feature of detail, the chin is secured to a lever for controlling its tilting and bringing it from the locking position to a standby position.

L'invention va maintenant être décrite avec plus de détails en se référant à un mode de réalisation particulier donné à titre d'exemple seulement et représenté aux dessins annexés.  The invention will now be described in more detail with reference to a particular embodiment given by way of example only and shown in the accompanying drawings.

Figure 1 est une vue schématique en élévation montrant le dispositif, selon l'invention, en position d'attente.  Figure 1 is a schematic elevational view showing the device according to the invention, in the standby position.

Figure 2 et figure 3 sont des vues schématiques montrant l'attelage et le verrouillage du dispositif.  Figure 2 and Figure 3 are schematic views showing the coupling and locking of the device.

Le dispositif comporte un bâti 1 fixé à la machine agricole et sur lequel est articulé, sur un axe 2, un verrou 3 présentant une encoche 4 délimitée par deux bords 4a et 4b, un talon 5 et un cran 6.  The device comprises a frame 1 fixed to the agricultural machine and on which is articulated, on an axis 2, a lock 3 having a notch 4 delimited by two edges 4a and 4b, a heel 5 and a notch 6.

Sur le bâti 1 est articulé, sur un axe 7, un mentonnet 8 présentant une surface d'appui 9 destinée à coopérer avec le talon 5 dans une position d'attente et un bec 10 destiné à coopérer avec le cran 6 dans la position de verrouillage.  On the frame 1 is articulated, on an axis 7, a chin 8 having a bearing surface 9 intended to cooperate with the heel 5 in a waiting position and a spout 10 intended to cooperate with the notch 6 in the position of locking.

<Desc/Clms Page number 3> <Desc / Clms Page number 3>

Le verrou 3 et le mentonnet 8 sont reliés par un ressort de traction 12.  The latch 3 and the flange 8 are connected by a tension spring 12.

Le dispositif est complété par un support 14 des- 1 tinte à être monté sur le dispositif de relevage trois points d'un tracteur et comprenant deux joues reliées par une barre horizontale supérieure 16 et une barre horizontale inférieure 17.  The device is completed by a support 14 intended to be mounted on the three-point lifting device of a tractor and comprising two cheeks connected by an upper horizontal bar 16 and a lower horizontal bar 17.

Le bâti 1 comporte, à sa partie supérieure, une ouverture 19 avec une échancrure 20 destinée à recevoir la barre 16, tandis qu'au niveau du verrou 3, il est prévu une entaille 21.  The frame 1 has, at its upper part, an opening 19 with a notch 20 intended to receive the bar 16, while at the level of the lock 3, a notch 21 is provided.

Le mentonnet 8 est pourvu d'un levier 23 permettant de le faire basculer pour l'amener, lorsqu'il est en position de verrouillage, en position d'attente.  The flange 8 is provided with a lever 23 making it possible to tilt it to bring it, when it is in the locking position, into the waiting position.

Le fonctionnement est le suivant : le dispositif est placé en position d'attente (voir figure 1) c'est-àdire que le levier 23 ayant été tiré vers le haut, le verrou 3 bascule avec l'action du ressort 12 de manière que son talon 5 vienne buter contre la surface d'appui 9.  The operation is as follows: the device is placed in the standby position (see FIG. 1), that is to say that the lever 23 having been pulled up, the latch 3 switches with the action of the spring 12 so that its heel 5 abuts against the bearing surface 9.

Dans cette position, l'entaille 21 est masquée par le bord 4b de l'encoche 4 du verrou 3, bord qui constitue une surface de poussée.  In this position, the notch 21 is masked by the edge 4b of the notch 4 of the latch 3, edge which constitutes a thrust surface.

Pour atteler la machine, on fait reculer le tracteur de manière que la barre 16 vienne s'insérer dans l'ouverture 19 et que la barre 17 vienne se situer au droit de l'entaille 21. Le tracteur reculant, la barre 17 bute sur le bord 4b du verrou 3 pour s'engager dans l'entaille 21 de sorte que ledit verrou bascule sur l'axe 2, son talon 5 glissant sur la surface d'appui 9 jusqu'à ce que le bec 10 vienne s'insérer dans le cran 6.  To couple the machine, the tractor is moved back so that the bar 16 comes to be inserted into the opening 19 and that the bar 17 comes to be located in line with the notch 21. The tractor backing up, the bar 17 abuts on the edge 4b of the lock 3 to engage in the notch 21 so that said lock switches on the axis 2, its heel 5 sliding on the bearing surface 9 until the spout 10 comes to be inserted in notch 6.

<Desc/Clms Page number 4> <Desc / Clms Page number 4>

Dans cette position, la barre 17 est bloquée entre le fond de l'entaille 21 et le fond de l'encoche 4.  In this position, the bar 17 is blocked between the bottom of the notch 21 and the bottom of the notch 4.

Pour déverrouiller le dispositif, il suffit de tirer vers le haut le levier 23 afin de dégager le bec 10 du mentonnet 8 du cran 6, le verrou 3 basculant sur l'axe 2 avec l'action du ressort 12 pour amener le talon 5 contre la surface d'appui 9, le dispositif étant ainsi automatiquement en position d'attente.  To unlock the device, it suffices to pull up the lever 23 in order to release the beak 10 from the chuck 8 of the notch 6, the lock 3 rocking on the axis 2 with the action of the spring 12 to bring the heel 5 against the support surface 9, the device thus being automatically in the standby position.

Bien entendu, l'invention n'est pas limitée au mode de réalisation qui vient d'être décrit et représenté.  Of course, the invention is not limited to the embodiment which has just been described and shown.

On pourra y apporter de nombreuses modifications de détail sans sortir pour cela du cadre de l'invention.Many detailed modifications can be made without departing from the scope of the invention.

Claims (2)

REVENDICATIONS 1. Dispositif d'attelage et de verrouillage automatique d'une machine agricole à l'arrière d'un tracteur du type comprenant un support (14) monté à l'arrière d'un tracteur et comprenant une première barre horizontale supérieure (16) et une seconde barre horizontale inférieure (17) et un bâti (1) solidaire de la machine agricole à atteler et comportant une ouverture avec une échancrure (20) pour recevoir la barre horizontale supérieure (16) et une entaille (21) pour recevoir la barre horizontale inférieure (17) et des moyens de verrouillage de cette dernière dans l'entaille, ledit dispositif étant caractérisé en ce qu'au voisinage de l'entaille (21), sur le bâti (1), est monté basculant un verrou (3) présentant une encoche (4) destinée, dans une position de verrouillage, à fermer l'entaille (21) du bâti (1), ledit verrou présentant un talon (5) destiné à coopérer avec une surface d'appui (9) d'un mentonnet articulé sur le bâti (1), le verrou (3) et le mentonnet (8) étant reliés par un ressort de traction tendant à maintenir le talon contre ladite surface d'appui dans une position d'attente, ledit verrou comportant un cran (6) ménagé entre le talon (5) et l'encoche (4) et destiné à coopérer avec un bec (10) du mentonnet (8) dans la position de verrouillage. 1. Device for automatically coupling and locking an agricultural machine at the rear of a tractor of the type comprising a support (14) mounted at the rear of a tractor and comprising a first upper horizontal bar (16) and a second lower horizontal bar (17) and a frame (1) integral with the agricultural machine to be coupled and comprising an opening with a notch (20) to receive the upper horizontal bar (16) and a notch (21) to receive the lower horizontal bar (17) and means for locking the latter in the notch, said device being characterized in that in the vicinity of the notch (21), on the frame (1), is mounted tilting a lock ( 3) having a notch (4) intended, in a locking position, to close the notch (21) of the frame (1), said lock having a heel (5) intended to cooperate with a bearing surface (9) a hinged chin on the frame (1), the bolt (3) and the chin net (8) being connected by a tension spring tending to hold the heel against said bearing surface in a waiting position, said latch comprising a notch (6) formed between the heel (5) and the notch (4 ) and intended to cooperate with a spout (10) of the chin (8) in the locked position. 2. Dispositif d'attelage, selon la revendication 1, caractérisé en ce que le mentonnet (8) est solidaire d'un levier (23) pour commander son basculement pour l'amener depuis la position de verrouillage à une position d'attente. 2. Coupling device according to claim 1, characterized in that the chin (8) is integral with a lever (23) to control its tilting to bring it from the locking position to a standby position.
FR0112483A 2001-09-28 2001-09-28 AUTOMATIC HITCHING AND LOCKING DEVICE OF AN AGRICULTURAL MACHINE AT THE BACK OF A TRACTOR Expired - Fee Related FR2830166B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0112483A FR2830166B1 (en) 2001-09-28 2001-09-28 AUTOMATIC HITCHING AND LOCKING DEVICE OF AN AGRICULTURAL MACHINE AT THE BACK OF A TRACTOR

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Application Number Priority Date Filing Date Title
FR0112483A FR2830166B1 (en) 2001-09-28 2001-09-28 AUTOMATIC HITCHING AND LOCKING DEVICE OF AN AGRICULTURAL MACHINE AT THE BACK OF A TRACTOR

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FR2830166A1 true FR2830166A1 (en) 2003-04-04
FR2830166B1 FR2830166B1 (en) 2003-11-28

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2871485A1 (en) * 2004-06-10 2005-12-16 Etude Et D Innovation Dans Le DEVICE FOR COUPLING A LOADER ON A TRACTOR
EP2048290A3 (en) * 2007-10-09 2013-02-27 AGCO GmbH Coupling device with semi-automatic locking for the detachable coupling of an implement to a utility vehicle
FR2993584A1 (en) * 2012-07-17 2014-01-24 Thiere Ets Rapid assembling device for assembling bucket on arm of e.g. hydraulic excavator shovel, in public works, has locking finger unlocked from female locking element by rotation of male locking element to allow hand to leave locked position
EP3150036A1 (en) * 2015-09-29 2017-04-05 Exel Industries Device for connecting an agricultural accessory to an agricultural tractor vehicle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2156460A1 (en) * 1971-10-20 1973-06-01 Pierre Gerard
US3760883A (en) * 1972-03-27 1973-09-25 Balderson Inc Quick hitch assembly
US4243356A (en) * 1978-03-30 1981-01-06 Caterpillar Mitsubishi Ltd. Quick coupler
US4986722A (en) * 1989-05-15 1991-01-22 Deere & Company Mounting structure for a loader attachment
JPH11323997A (en) * 1998-05-21 1999-11-26 Shin Caterpillar Mitsubishi Ltd Work tool replacing structure for construction machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2156460A1 (en) * 1971-10-20 1973-06-01 Pierre Gerard
US3760883A (en) * 1972-03-27 1973-09-25 Balderson Inc Quick hitch assembly
US4243356A (en) * 1978-03-30 1981-01-06 Caterpillar Mitsubishi Ltd. Quick coupler
US4986722A (en) * 1989-05-15 1991-01-22 Deere & Company Mounting structure for a loader attachment
JPH11323997A (en) * 1998-05-21 1999-11-26 Shin Caterpillar Mitsubishi Ltd Work tool replacing structure for construction machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 02 29 February 2000 (2000-02-29) *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2871485A1 (en) * 2004-06-10 2005-12-16 Etude Et D Innovation Dans Le DEVICE FOR COUPLING A LOADER ON A TRACTOR
WO2006003286A1 (en) * 2004-06-10 2006-01-12 Ste D'etude Et D'innovation Dans Le Materiel Agricole Device for coupling a loader to a tractor
US7549832B2 (en) 2004-06-10 2009-06-23 Mailleux Device for coupling a loader to a tractor
EP2048290A3 (en) * 2007-10-09 2013-02-27 AGCO GmbH Coupling device with semi-automatic locking for the detachable coupling of an implement to a utility vehicle
FR2993584A1 (en) * 2012-07-17 2014-01-24 Thiere Ets Rapid assembling device for assembling bucket on arm of e.g. hydraulic excavator shovel, in public works, has locking finger unlocked from female locking element by rotation of male locking element to allow hand to leave locked position
EP3150036A1 (en) * 2015-09-29 2017-04-05 Exel Industries Device for connecting an agricultural accessory to an agricultural tractor vehicle

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