EP3548671B1 - Earthmoving machine comprising a quick-release device and a reversible adapter for a bucket - Google Patents

Earthmoving machine comprising a quick-release device and a reversible adapter for a bucket Download PDF

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Publication number
EP3548671B1
EP3548671B1 EP17816931.4A EP17816931A EP3548671B1 EP 3548671 B1 EP3548671 B1 EP 3548671B1 EP 17816931 A EP17816931 A EP 17816931A EP 3548671 B1 EP3548671 B1 EP 3548671B1
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EP
European Patent Office
Prior art keywords
quick
release device
reversible adapter
ramps
adapter
Prior art date
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Application number
EP17816931.4A
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German (de)
French (fr)
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EP3548671A1 (en
Inventor
Xavier PINGRET
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Arden Equipment
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Arden Equipment
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Publication of EP3548671B1 publication Critical patent/EP3548671B1/en
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Classifications

    • 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
    • E02F3/3622—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with a hook and a locking element acting on a pin
    • 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
    • E02F3/3627—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with a hook and a longitudinal locking element
    • 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
    • E02F3/3663—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat hydraulically-operated

Definitions

  • the invention relates to an earthmoving machine with a quick coupler device and a reversible bucket adapter.
  • Such an earth-moving machine is able to work in retro mode and in chouleur mode.
  • the reversible adapter is fixed to the bucket, and has two broaching axes, parallel to each other, suitable for being gripped by the quick coupler device in the two opposite orientations of the bucket, to work both in reverse mode with the opening of the bucket towards the machine, only in chouleur mode with the opening of the bucket opposite the machine.
  • This machine comprises an adapter essentially consisting of two parallel side plates, connected by two broaching pins. Once in place on the bucket, the adapter receives on one of its axes the hooks of the quick coupler and on the other axis on the one hand, the support of the end of the quick coupler opposite the hooks, and on the other hand, a fixing lock.
  • one of the two axles combines two distinct functions in reverse mode, recovery of crowding forces and locking. Consequently, if a defect appears (positioning, deformation, wear, etc.) on the axis in question, it can simultaneously result in a harmful consequence on the two functions.
  • One of the aims of the invention is to provide an earth-moving machine with a quick-attach device and a reversible adapter that does not have the aforementioned drawback.
  • Another object of the invention is to provide an earth-moving machine with a quick-attach device and a reversible adapter, having a distribution of mechanical forces favorable to its operating safety.
  • the subject of the invention is an earth-moving machine, with a quick-attach device and a reversible adapter for a bucket, comprising an operating arm at the end of which the quick-attach device is able to be fixed, said quick-attach device comprising two so-called front hooks, arranged symmetrically with respect to a vertical plane passing through the longitudinal axis of the operating arm and called the reference plane, and a so-called rear lock movable in the said reference plane, the reversible adapter comprising two side plates symmetrical with respect to said reference plane and connected by two broaching axes perpendicular to said plane of symmetry, characterized in that the quick coupling device and the reversible adapter each comprise at least two inclined ramps, the inclined ramps of the quick coupler being in reciprocal support on the inclined ramps of the reversible adapter.
  • the inclined ramps of the quick-attach device are two in number and arranged symmetrically, on either side of the lock, the plane of inclination of the two ramps passing below the hooks .
  • the inclined ramps of the reversible adapter are four in number, two on each side plate of the reversible adapter.
  • the two inclined ramps of each side plate of the reversible adapter are symmetrical to each other and also inclined to the plane defined by the geometric axes of the broaching axes.
  • the angle of inclination of the inclined ramps on the plane defined by the geometric axes of the broaching axes is between 5 and 45° and preferably 20°.
  • the inclined ramps of the quick-attach device have the same inclination as the inclined ramps of the reversible adapter with which they are in reciprocal support.
  • the invention also relates to a quick coupler device for earthmoving machinery with a bucket maneuvering arm, comprising two so-called front hooks, and a so-called rear lock, characterized in that it comprises two inclined ramps arranged symmetrically on either side of the lock, the plane of inclination of the two ramps passing below the hooks.
  • the so-called rear lock is a spring-loaded or cylinder-loaded lock.
  • Another subject of the invention is a reversible adapter for an earth-moving machine with a bucket maneuvering arm, comprising two side plates connected by two broaching axes perpendicular to the said planes of the side plates, characterized in that it comprises, on each side plates, two ramps inclined with respect to the plane defined by the geometric axes of the broaching axes.
  • the two inclined ramps of each side plate are mutually symmetrical and also inclined on the plane defined by the geometric axes of the broaching axes.
  • the angle of inclination of the inclined ramps on the plane defined by the geometric axes of the broaching axes is between 5 and 45°.
  • this angle of inclination is 20°.
  • each of the broaching axes has, in its central zone, a planar surface for guiding the locking means of a quick-attach device on the reversible adapter.
  • Another subject of the invention is an assembly for an earth-moving machine with a bucket maneuvering arm, said assembly comprising a quick coupler device capable of being fixed to the end of the maneuvering arm of the machine and an adapter reversible adapted to be coupled to the bucket, said reversible adapter comprising two side plates connected by two broaching axes perpendicular to the planes of the side plates, said quick coupler device comprising two so-called front hooks, and a so-called rear lock, the front hooks of the quick-attach device being intended to receive one of the pin pins of the reversible adapter, the rear lock being intended to be inserted under the other pin pin of the reversible adapter in the fixed state of the reversible adapter to the quick-attach device, characterized in that the quick-attach device and the reversible adapter each comprise at least two inclined ramps, the inclined ramps of the quick-attach device resting on the inclined ramps from the reversible adapter in the attached state from the reversible adapt
  • the reversible adapter is of the aforementioned type.
  • the quick-attach device is of the aforementioned type.
  • An earthmoving machine 1 with an operating arm 2 and a bucket 3 is equipped in retro mode when the opening of the bucket 3 is turned towards the machine 1 ( figure 1 ), and in chouleur mode when the opening of bucket 3 is oriented away from machine 1 ( figure 2 ).
  • Bucket 3 ( picture 3 ) is equipped with a reversible adapter 4 which allows the quick-attach device 5 ( figure 4 ) fixed at the end of the arm 2 maneuver, to enter the bucket 3 in each of the two positions corresponding to the retro and chouleur modes.
  • the reversible adapter 4 essentially consists in a conventional manner of two side plates 6, 7 and two axes 8, 9 of broaching.
  • the side plates 6, 7 are symmetrical to each other with respect to the vertical reference plane of the machine 1.
  • This reference plane is a vertical plane passing through the longitudinal axis of the maneuvering arm 2.
  • the side plates 6, 7 are interconnected by the two broaching axes 8, 9, which are perpendicular to the reference plane and to the plane of the side plates 6, 7.
  • the geometric axes of the broaching axes 8, 9 define a plane 10.
  • the two broaching axes 8, 9 are symmetrical to one another with respect to the median plane 11 perpendicular to the plane 10 connecting their geometric axes.
  • the structure of the reversible adapter 4 conventionally comprises reinforcements 12 and means for fixing to the cup 3.
  • each side plate 6, 7 carries, towards the inside of the adapter 4, a pair of inclined ramps, or stops, respectively 13, 14 and 15, 16.
  • the ramps of the same pair, 13, 14 on the one hand and 15, 16 on the other hand, are symmetrical to each other by relative to the median plane 11.
  • the pairs of ramps 13, 14 and 15, 16 are symmetrical to each other relative to the reference plane of the machine 1.
  • the ramps 13 to 16 have an inclination of between 5 and 45°, more precisely between 10 and 30°, and preferably of 20°.
  • the ramps 13 to 16 define a dihedral, open towards the broaching axes and having an opening angle of 140°.
  • the reversible adapter 4 can be obtained by mechanically welded assembly or by molding.
  • the ramps 13 to 16 are mechanically linked to the side plates.
  • the quick-attach device 5 is carried by the end of the arm 2 of the machine 1. Conventionally, it comprises so-called front hooks 17 and a so-called rear lock 18.
  • the front hooks 17 are arranged symmetrically with respect to the reference plane of the machine, in the coupled state of the quick-attach device 5 to the operating arm 2, and are intended to receive one of the broaching axes 8, 9 of the reversible adapter 4.
  • the rear lock 18 is intended to be inserted under the other broaching axis to ensure the locking of the quick-attach device 5 on the reversible adapter 4.
  • the quick-attach device 5 comprises two ramps inclined 19, 20, intended to cooperate with the inclined ramps of the adapter 4 by reciprocal support.
  • engine 1 works in retro mode.
  • Bucket 3 and reversible adapter 4 are in the situation of the picture 3 .
  • the quick-attach device 5 has its hooks 17 engaged on the broaching axis 8 of the reversible adapter 4, and its latch 18 in the locking position under the broaching axis 9.
  • machine 1 works in chouleur mode.
  • the hooks 17 of the quick-attach device are engaged on the broaching axis 9 of the reversible adapter 4 and the lock 18 is in locking position under broaching axis 8.
  • the inclined ramps 19, 20 of the quick-attach device 5 rest respectively on the ramps 13 and 15 of the reversible adapter 4.
  • the reciprocal support of the inclined ramps 19, 20 of the quick-attach device 5 on the inclined ramps 16, 14, or 13, 15 respectively, of the reversible adapter 4 ensures transmission of the mechanical forces on the inclined ramps and not on the broaching axis as in the adapters of the prior art. This results in a better flow of mechanical stresses in the structure of the bucket, resulting in better resistance of the earthmoving equipment to cyclic loadings. This also results in less bending forces on the broaching axis under the action of the lock, resulting in greater safety of the earthmoving equipment.
  • the inclination of the ramps in reciprocal support causes a reaction force, a component of which, parallel to the plane 10 of the geometric axes of the broaching axes 8 and 9, tends to bring the broaching axis of the adapter reversible at the bottom of hooks 17.
  • the broaching pins 8, 9 have in their central zone a flat surface 21, 22, respectively.
  • the flat surfaces 21 and 22 are arranged symmetrically to each other with respect to the median plane 11. They are inclined in the direction of approaching downwards. They play the role guide surface of the locking means of the quick-attach device 5 on the reversible adapter 4.
  • the first phase consists in bringing the hooks 17 of a broaching axis.
  • the broaching axis, 8 for example is at the bottom of the hooks 17, the quick-attach device 5 is tilted by pivoting on the broaching axis 8.
  • the advantages of the invention are linked to the arrangement of the symmetrical inclined ramps in the reversible adapter and in the quick-attach device.
  • a single reversible adapter with a symmetrical contact profile ensures the absorption of forces in the two operating modes, retro and chouleur.
  • the profile and angle of the inclined ramps are determined to provide the best compromise between force absorption and play compensation, and better transmission of the digging forces, avoiding bending on the broaching pin ensuring the locking.
  • the mechanical stresses are directly taken up by the side plates of the reversible adapter and are then diluted towards the cup 1 whereas in the prior art, a central take-up of the stresses causes a bending-compression of the broaching axis ensuring the locking , which is detrimental to fatigue resistance.
  • the dissociation between the parts ensuring, on the one hand the recovery of the main breakout forces and on the other hand the locking of the quick coupler on the reversible adapter, induces better management of wear.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Shovels (AREA)
  • Soil Working Implements (AREA)

Description

DOMAINE DE L'INVENTIONFIELD OF THE INVENTION

L'invention concerne un engin de terrassement à dispositif d'attache rapide et adaptateur réversible pour godet. Un tel engin de terrassement est apte à travailler en mode rétro et en mode chouleur. L'adaptateur réversible est fixé au godet, et présente deux axes de brochage, parallèles entre eux, aptes à être saisis par le dispositif d'attache rapide dans les deux orientations opposées du godet, pour travailler aussi bien en mode rétro avec l'ouverture du godet vers l'engin, qu'en mode chouleur avec l'ouverture du godet à l'opposé de l'engin.The invention relates to an earthmoving machine with a quick coupler device and a reversible bucket adapter. Such an earth-moving machine is able to work in retro mode and in chouleur mode. The reversible adapter is fixed to the bucket, and has two broaching axes, parallel to each other, suitable for being gripped by the quick coupler device in the two opposite orientations of the bucket, to work both in reverse mode with the opening of the bucket towards the machine, only in chouleur mode with the opening of the bucket opposite the machine.

ART ANTERI EURPRIOR ART

Un engin de terrassement de ce type est décrit dans le document EP 1 749 939 . Cet engin comporte un adaptateur essentiellement constitué par deux plaques latérales parallèles, reliées par deux axes de brochage. Une fois mis en place sur le godet, l'adaptateur reçoit sur l'un de ses axes les crochets de l'attache rapide et sur l'autre axe d'une part, l'appui de l'extrémité de l'attache rapide opposée aux crochets, et d'autre part, un verrou de fixation.An earth-moving machine of this type is described in the document EP 1 749 939 . This machine comprises an adapter essentially consisting of two parallel side plates, connected by two broaching pins. Once in place on the bucket, the adapter receives on one of its axes the hooks of the quick coupler and on the other axis on the one hand, the support of the end of the quick coupler opposite the hooks, and on the other hand, a fixing lock.

Cette obligation d'avoir deux pièces en appui stable sur un axe impose que cet axe présente deux faces planes faisant entre elles un angle déterminé. L'adaptateur étant réversible, ses deux axes doivent présenter les mêmes faces planes, les deux axes étant rigoureusement symétriques. Il en résulte une difficulté de réalisation et une difficulté de montage.This obligation to have two parts in stable support on an axis imposes that this axis has two flat faces forming between them a determined angle. The adapter being reversible, its two axes must have the same flat faces, the two axes being strictly symmetrical. This results in a difficulty of production and a difficulty of assembly.

De plus, l'un des deux axes cumule en mode rétro deux fonctions distinctes, reprise des efforts de cavage et verrouillage. Par conséquent, si un défaut apparaît (positionnement, déformation, usure...) sur l'axe en question, il peut en résulter simultanément une conséquence néfaste sur les deux fonctions.In addition, one of the two axles combines two distinct functions in reverse mode, recovery of crowding forces and locking. Consequently, if a defect appears (positioning, deformation, wear, etc.) on the axis in question, it can simultaneously result in a harmful consequence on the two functions.

BUTS ET RESUMEGOALS AND SUMMARY

L'un des buts de l'invention est de proposer un engin de terrassement à dispositif d'attache rapide et adaptateur réversible ne présentant pas l'inconvénient précité.One of the aims of the invention is to provide an earth-moving machine with a quick-attach device and a reversible adapter that does not have the aforementioned drawback.

Un autre but de l'invention est de proposer un engin de terrassement à dispositif d'attache rapide et adaptateur réversible, présentant une répartition des efforts mécaniques favorable à sa sécurité de fonctionnement.Another object of the invention is to provide an earth-moving machine with a quick-attach device and a reversible adapter, having a distribution of mechanical forces favorable to its operating safety.

L'invention a pour objet un engin de terrassement, à dispositif d'attache rapide et adaptateur réversible pour godet comportant un bras de manoeuvre à l'extrémité duquel le dispositif d'attache rapide est apte à être fixé, ledit dispositif d'attache rapide comportant deux crochets dits avant, disposés symétriquement par rapport à un plan vertical passant par l'axe longitudinal du bras de manoeuvre et appelé plan de référence, et un verrou dit arrière déplaçable dans ledit plan de référence, l'adaptateur réversible comportant deux plaques latérales symétriques par rapport audit plan de référence et reliées par deux axes de brochage perpendiculaires audit plan de symétrie, caractérisé en ce que le dispositif d'attache rapide et l'adaptateur réversible comportent chacun au moins deux rampes inclinées, les rampes inclinées du dispositif d'attache rapide étant en appui réciproque sur les rampes inclinées de l'adaptateur réversible.The subject of the invention is an earth-moving machine, with a quick-attach device and a reversible adapter for a bucket, comprising an operating arm at the end of which the quick-attach device is able to be fixed, said quick-attach device comprising two so-called front hooks, arranged symmetrically with respect to a vertical plane passing through the longitudinal axis of the operating arm and called the reference plane, and a so-called rear lock movable in the said reference plane, the reversible adapter comprising two side plates symmetrical with respect to said reference plane and connected by two broaching axes perpendicular to said plane of symmetry, characterized in that the quick coupling device and the reversible adapter each comprise at least two inclined ramps, the inclined ramps of the quick coupler being in reciprocal support on the inclined ramps of the reversible adapter.

Cette disposition de rampes inclinées en appui réciproque assure une coopération mécanique efficace quelle que soit l'orientation du godet au cours du terrassement.This arrangement of inclined ramps in reciprocal support ensures effective mechanical cooperation regardless of the orientation of the bucket during earthmoving.

Selon un mode de réalisation de l'invention, les rampes inclinées du dispositif d'attache rapide sont au nombre de deux et disposées symétriquement, de part et d'autre du verrou, le plan d'inclinaison des deux rampes passant en dessous des crochets.According to one embodiment of the invention, the inclined ramps of the quick-attach device are two in number and arranged symmetrically, on either side of the lock, the plane of inclination of the two ramps passing below the hooks .

Selon un mode de réalisation de l'invention, les rampes inclinées de l'adaptateur réversible sont au nombre de quatre, deux sur chaque plaque latérale de l'adaptateur réversible.According to one embodiment of the invention, the inclined ramps of the reversible adapter are four in number, two on each side plate of the reversible adapter.

Selon un mode de réalisation de l'invention, les deux rampes inclinées de chaque plaque latérale de l'adaptateur réversible sont symétriques entre elles et également inclinées sur le plan défini par les axes géométriques des axes de brochage.According to one embodiment of the invention, the two inclined ramps of each side plate of the reversible adapter are symmetrical to each other and also inclined to the plane defined by the geometric axes of the broaching axes.

Selon un mode de réalisation de l'invention, l'angle d'inclinaison des rampes inclinées sur le plan défini par les axes géométriques des axes de brochage est compris entre 5 et 45° et de préférence de 20°.According to one embodiment of the invention, the angle of inclination of the inclined ramps on the plane defined by the geometric axes of the broaching axes is between 5 and 45° and preferably 20°.

Selon un mode de réalisation de l'invention, les rampes inclinées du dispositif d'attache rapide ont la même inclinaison que les rampes inclinées de l'adaptateur réversible avec lesquelles elles sont en appui réciproque.According to one embodiment of the invention, the inclined ramps of the quick-attach device have the same inclination as the inclined ramps of the reversible adapter with which they are in reciprocal support.

L'invention a aussi pour objet un dispositif d'attache rapide pour engin de terrassement à bras de manoeuvre d'un godet, comportant deux crochets dits avant, et un verrou dit arrière, caractérisé en ce qu'il comporte deux rampes inclinées disposées symétriquement de part et d'autre du verrou, le plan d'inclinaison des deux rampes passant en dessous des crochets.The invention also relates to a quick coupler device for earthmoving machinery with a bucket maneuvering arm, comprising two so-called front hooks, and a so-called rear lock, characterized in that it comprises two inclined ramps arranged symmetrically on either side of the lock, the plane of inclination of the two ramps passing below the hooks.

Selon un mode de réalisation du dispositif d'attache rapide, le verrou, dit arrière, est un verrou sollicité par ressort ou par vérin.According to one embodiment of the quick-attach device, the so-called rear lock is a spring-loaded or cylinder-loaded lock.

L'invention a encore pour objet un adaptateur réversible pour engin de terrassement à bras de manoeuvre d'un godet, comportant deux plaques latérales reliées par deux axes de brochage perpendiculaires auxdits plans des plaques latérales, caractérisé en ce qu'il comporte, sur chacune des plaques latérales, deux rampes inclinées par rapport au plan défini par les axes géométriques des axes de brochage.Another subject of the invention is a reversible adapter for an earth-moving machine with a bucket maneuvering arm, comprising two side plates connected by two broaching axes perpendicular to the said planes of the side plates, characterized in that it comprises, on each side plates, two ramps inclined with respect to the plane defined by the geometric axes of the broaching axes.

Selon un mode de réalisation de l'invention, les deux rampes inclinées de chaque plaque latérale sont symétriques entre elles et également inclinées sur le plan défini par les axes géométriques des axes de brochage.According to one embodiment of the invention, the two inclined ramps of each side plate are mutually symmetrical and also inclined on the plane defined by the geometric axes of the broaching axes.

Selon un mode de réalisation, l'angle d'inclinaison des rampes inclinées sur le plan défini par les axes géométriques des axes de brochage est compris entre 5 et 45°.According to one embodiment, the angle of inclination of the inclined ramps on the plane defined by the geometric axes of the broaching axes is between 5 and 45°.

Selon un mode de réalisation, cet angle d'inclinaison est de 20°.According to one embodiment, this angle of inclination is 20°.

Selon un mode de réalisation, chacun des axes de brochage présente dans sa zone centrale, une surface plane de guidage du moyen de verrouillage d'un dispositif d'attache rapide sur l'adaptateur réversible.According to one embodiment, each of the broaching axes has, in its central zone, a planar surface for guiding the locking means of a quick-attach device on the reversible adapter.

L'invention a encore pour objet un ensemble pour engin de terrassement à bras de manoeuvre d'un godet, ledit ensemble comprenant un dispositif d'attache rapide apte à être fixé à l'extrémité du bras de manoeuvre de l'engin et un adaptateur réversible apte à être couplé au godet, ledit adaptateur réversible comportant deux plaques latérales reliées par deux axes de brochage perpendiculaires aux plans des plaques latérales, ledit dispositif d'attache rapide comportant deux crochets dits avant, et un verrou dit arrière, les crochets avant du dispositif d'attache rapide étant destinés à recevoir l'un des axes de brochage de l'adaptateur réversible, le verrou arrière étant destiné à s'insérer sous l'autre axe de brochage de l'adaptateur réversible à l'état fixé de l'adaptateur réversible au dispositif d'attache rapide, caractérisé en ce que le dispositif d'attache rapide et l'adaptateur réversible comportent chacun au moins deux rampes inclinées, les rampes inclinées du dispositif d'attache rapide étant en appui réciproque sur les rampes inclinées de l'adaptateur réversible à l'état fixé de l'adaptateur réversible au dispositif d'attache rapide.Another subject of the invention is an assembly for an earth-moving machine with a bucket maneuvering arm, said assembly comprising a quick coupler device capable of being fixed to the end of the maneuvering arm of the machine and an adapter reversible adapted to be coupled to the bucket, said reversible adapter comprising two side plates connected by two broaching axes perpendicular to the planes of the side plates, said quick coupler device comprising two so-called front hooks, and a so-called rear lock, the front hooks of the quick-attach device being intended to receive one of the pin pins of the reversible adapter, the rear lock being intended to be inserted under the other pin pin of the reversible adapter in the fixed state of the reversible adapter to the quick-attach device, characterized in that the quick-attach device and the reversible adapter each comprise at least two inclined ramps, the inclined ramps of the quick-attach device resting on the inclined ramps from the reversible adapter in the attached state from the reversible adapter to the quick coupler device.

De préférence, l'adaptateur réversible est du type précité.Preferably, the reversible adapter is of the aforementioned type.

De préférence, le dispositif d'attache rapide est du type précité.Preferably, the quick-attach device is of the aforementioned type.

BREVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF FIGURES

L'invention est décrite ci-après avec référence aux dessins annexés représentant :

  • Figure 1, une vue d'un engin de terrassement selon l'invention équipé en mode rétro ;
  • Figure 2, une vue de l'engin de terrassement de la figure 1, équipé en mode chouleur ;
  • Figure 3, une vue d'un godet de terrassement équipé d'un adaptateur réversible selon l'invention ;
  • Figure 4, une vue en perspective d'un dispositif d'attache rapide selon l'invention ;
  • Figure 5, une vue en coupe d'un premier exemple de réalisation d'un adaptateur réversible selon l'invention ;
  • Figure 6, une vue en coupe d'un deuxième exemple de réalisation d'un adaptateur réversible selon l'invention ;
  • Figure 7, une vue en coupe d'un dispositif d'attache rapide et d'un adaptateur réversible, selon l'invention, en position de coopération ;
  • Figure 8, une vue en coupe d'un dispositif d'attache rapide et d'un adaptateur réversible, selon l'invention, en position de travail sur un godet monté en mode rétro ;
  • Figure 9, une vue en coupe du dispositif d'attache rapide et de l'adaptateur réversible de la figure 8, en position de travail sur le même godet monté en mode chouleur.
The invention is described below with reference to the appended drawings representing:
  • Figure 1 , a view of an earth-moving machine according to the invention equipped in retro mode;
  • Figure 2 , a view of the earth-moving machine from the figure 1 , equipped in chouleur mode;
  • Figure 3 , a view of an earthmoving bucket equipped with a reversible adapter according to the invention;
  • Figure 4 , a perspective view of a quick-attach device according to the invention;
  • Figure 5 , a sectional view of a first embodiment of a reversible adapter according to the invention;
  • Figure 6 , a sectional view of a second embodiment of a reversible adapter according to the invention;
  • Picture 7 , a cross-sectional view of a quick-attach device and a reversible adapter, according to the invention, in the cooperating position;
  • Picture 8 , a sectional view of a quick coupler device and a reversible adapter, according to the invention, in working position on a bucket mounted in retro mode;
  • Picture 9 , a cross-sectional view of the quick-attach device and the reversible adapter of the figure 8 , in working position on the same bucket mounted in hoe mode.

DESCRIPTION DETAILLEEDETAILED DESCRIPTION

Un engin 1 de terrassement avec un bras de manoeuvre 2 et un godet 3 est équipé en mode rétro lorsque l'ouverture du godet 3 est tournée vers l'engin 1 (figure 1), et en mode chouleur lorsque l'ouverture du godet 3 est orientée à l'opposé de l'engin 1 (figure 2).An earthmoving machine 1 with an operating arm 2 and a bucket 3 is equipped in retro mode when the opening of the bucket 3 is turned towards the machine 1 ( figure 1 ), and in chouleur mode when the opening of bucket 3 is oriented away from machine 1 ( figure 2 ).

Le godet 3 (figure 3) est équipé d'un adaptateur 4 réversible qui permet au dispositif 5 d'attache rapide (figure 4) fixé au bout du bras 2 de manoeuvre, de saisir le godet 3 dans chacune des deux positions correspondant aux modes rétro et chouleur.Bucket 3 ( picture 3 ) is equipped with a reversible adapter 4 which allows the quick-attach device 5 ( figure 4 ) fixed at the end of the arm 2 maneuver, to enter the bucket 3 in each of the two positions corresponding to the retro and chouleur modes.

L'adaptateur 4 réversible est essentiellement constitué de manière classique de deux plaques latérales 6, 7 et de deux axes 8, 9 de brochage.The reversible adapter 4 essentially consists in a conventional manner of two side plates 6, 7 and two axes 8, 9 of broaching.

Les plaques latérales 6, 7 sont symétriques l'une de l'autre par rapport au plan vertical de référence de l'engin 1. Ce plan de référence est un plan vertical passant par l'axe longitudinal du bras 2 de manoeuvre. Les plaques latérales 6, 7 sont reliées entre elles par les deux axes 8, 9 de brochage, qui sont perpendiculaires au plan de référence et au plan des plaques latérales 6, 7.The side plates 6, 7 are symmetrical to each other with respect to the vertical reference plane of the machine 1. This reference plane is a vertical plane passing through the longitudinal axis of the maneuvering arm 2. The side plates 6, 7 are interconnected by the two broaching axes 8, 9, which are perpendicular to the reference plane and to the plane of the side plates 6, 7.

Les axes géométriques des axes de brochage 8, 9 définissent un plan 10. Les deux axes de brochage 8, 9 sont symétriques l'un de l'autre par rapport au plan médian 11 perpendiculaire au plan 10 reliant leurs axes géométriques. La structure de l'adaptateur réversible 4 comprend de façon classique des renforts 12 et des moyens de fixation au godet 3.The geometric axes of the broaching axes 8, 9 define a plane 10. The two broaching axes 8, 9 are symmetrical to one another with respect to the median plane 11 perpendicular to the plane 10 connecting their geometric axes. The structure of the reversible adapter 4 conventionally comprises reinforcements 12 and means for fixing to the cup 3.

Selon l'invention, chaque plaque latérale 6, 7, porte, vers l'intérieur de l'adaptateur 4, une paire de rampes inclinées, ou butées, respectivement 13, 14 et 15, 16. Les rampes d'une même paire, 13, 14 d'une part et 15, 16 d'autre part, sont symétriques l'une de l'autre par rapport au plan médian 11. Les paires de rampes 13, 14 et 15, 16, sont symétriques l'une de l'autre par rapport au plan de référence de l'engin 1.According to the invention, each side plate 6, 7 carries, towards the inside of the adapter 4, a pair of inclined ramps, or stops, respectively 13, 14 and 15, 16. The ramps of the same pair, 13, 14 on the one hand and 15, 16 on the other hand, are symmetrical to each other by relative to the median plane 11. The pairs of ramps 13, 14 and 15, 16 are symmetrical to each other relative to the reference plane of the machine 1.

Par rapport au plan 10 des axes géométriques des axes 8, 9 de brochage, les rampes 13 à 16 ont une inclinaison comprise entre 5 et 45°, plus précisément entre 10 et 30°, et de préférence de 20°. Dans les exemples de réalisation des figures 5 à 9, les rampes 13 à 16 définissent un dièdre, ouvert vers les axes de brochage et présentant un angle d'ouverture de 140°. L'adaptateur 4 réversible peut être obtenu par assemblage mécano-soudé ou par moulage. Les rampes 13 à 16 sont mécaniquement liées aux plaques latérales.With respect to the plane 10 of the geometric axes of the broaching axes 8, 9, the ramps 13 to 16 have an inclination of between 5 and 45°, more precisely between 10 and 30°, and preferably of 20°. In the embodiments of the figures 5 to 9 , the ramps 13 to 16 define a dihedral, open towards the broaching axes and having an opening angle of 140°. The reversible adapter 4 can be obtained by mechanically welded assembly or by molding. The ramps 13 to 16 are mechanically linked to the side plates.

Le dispositif 5 d'attache rapide est porté par l'extrémité du bras 2 de l'engin 1. De façon classique, il comporte des crochets 17 dits avant et un verrou 18 dit arrière. Les crochets 17 avant sont disposés symétriquement par rapport au plan de référence de l'engin, à l'état couplé du dispositif 5 d'attache rapide au bras 2 de manoeuvre, et sont destinés à recevoir l'un des axes de brochage 8, 9 de l'adaptateur 4 réversible. Le verrou arrière 18 est destiné à s'insérer sous l'autre axe de brochage pour assurer le verrouillage du dispositif d'attache rapide 5 sur l'adaptateur réversible 4. Selon l'invention, le dispositif d'attache rapide 5 comporte deux rampes inclinées 19, 20, destinées à coopérer avec les rampes inclinées de l'adaptateur 4 par appui réciproque.The quick-attach device 5 is carried by the end of the arm 2 of the machine 1. Conventionally, it comprises so-called front hooks 17 and a so-called rear lock 18. The front hooks 17 are arranged symmetrically with respect to the reference plane of the machine, in the coupled state of the quick-attach device 5 to the operating arm 2, and are intended to receive one of the broaching axes 8, 9 of the reversible adapter 4. The rear lock 18 is intended to be inserted under the other broaching axis to ensure the locking of the quick-attach device 5 on the reversible adapter 4. According to the invention, the quick-attach device 5 comprises two ramps inclined 19, 20, intended to cooperate with the inclined ramps of the adapter 4 by reciprocal support.

Dans l'exemple de réalisation des figures 7 et 8, l'engin 1 travaille en mode rétro. Le godet 3 et l'adaptateur réversible 4 sont dans la situation de la figure 3. Le dispositif d'attache rapide 5 a ses crochets 17 en prise sur l'axe de brochage 8 de l'adaptateur réversible 4, et son verrou 18 en position de verrouillage sous l'axe de brochage 9.In the embodiment of the figure 7 And 8 , engine 1 works in retro mode. Bucket 3 and reversible adapter 4 are in the situation of the picture 3 . The quick-attach device 5 has its hooks 17 engaged on the broaching axis 8 of the reversible adapter 4, and its latch 18 in the locking position under the broaching axis 9.

Dans cette position relative du dispositif d'attache rapide 5 et de l'adaptateur réversible 4, la rampe inclinée 20 du dispositif d'attache rapide 5 est en appui sur la rampe inclinée 14 de l'adaptateur réversible 4. De même, la rampe inclinée 19 du dispositif d'attache rapide 5 est en appui sur la rampe inclinée 16 de l'adaptateur réversible 4.In this relative position of the quick-attach device 5 and the reversible adapter 4, the inclined ramp 20 of the quick-attach device 5 rests on the inclined ramp 14 of the reversible adapter 4. Similarly, the ramp 19 of the quick-attach device 5 rests on the inclined ramp 16 of the reversible adapter 4.

Dans l'exemple de réalisation de la figure 9, l'engin 1 travaille en mode chouleur. Les crochets 17 du dispositif d'attache rapide sont en prise sur l'axe de brochage 9 de l'adaptateur réversible 4 et le verrou 18 est en position de verrouillage sous l'axe de brochage 8. Les rampes inclinées 19, 20 du dispositif d'attache rapide 5 sont en appui respectivement sur les rampes 13 et 15 de l'adaptateur réversible 4.In the embodiment of the figure 9 , machine 1 works in chouleur mode. The hooks 17 of the quick-attach device are engaged on the broaching axis 9 of the reversible adapter 4 and the lock 18 is in locking position under broaching axis 8. The inclined ramps 19, 20 of the quick-attach device 5 rest respectively on the ramps 13 and 15 of the reversible adapter 4.

L'appui réciproque des rampes inclinées 19, 20 du dispositif d'attache rapide 5 sur les rampes inclinées 16, 14, ou 13, 15 respectivement, de l'adaptateur réversible 4 assure une transmission des efforts mécaniques sur les rampes inclinées et non pas sur l'axe de brochage comme dans les adaptateurs de l'art antérieur. Il en résulte un meilleur écoulement des contraintes mécaniques dans la structure du godet, entraînant une meilleure tenue de l'équipement de terrassement aux chargements cycliques. Il en résulte également de moindres efforts de flexion sur l'axe de brochage sous l'action du verrou, d'où une plus grande sécurité de l'équipement de terrassement.The reciprocal support of the inclined ramps 19, 20 of the quick-attach device 5 on the inclined ramps 16, 14, or 13, 15 respectively, of the reversible adapter 4 ensures transmission of the mechanical forces on the inclined ramps and not on the broaching axis as in the adapters of the prior art. This results in a better flow of mechanical stresses in the structure of the bucket, resulting in better resistance of the earthmoving equipment to cyclic loadings. This also results in less bending forces on the broaching axis under the action of the lock, resulting in greater safety of the earthmoving equipment.

Dans le fonctionnement en mode chouleur, lorsque le godet 3 est chargé, l'adaptateur réversible 4 est pratiquement en position verticale, et l'ouverture des crochets 17 du dispositif d'attache rapide 5 est orientée vers le bas. La coopération des rampes inclinées 13 et 19 d'une part, 15 et 20 d'autre part, permet de transférer une partie du poids du godet 3 d'une part sur le verrou 18, d'autre part sur les crochets 17. Il en résulte une réduction des contraintes au niveau du verrou et une amélioration de la sécurité.In operation in chouleur mode, when the bucket 3 is loaded, the reversible adapter 4 is practically in the vertical position, and the opening of the hooks 17 of the quick coupler device 5 is oriented downwards. The cooperation of the inclined ramps 13 and 19 on the one hand, 15 and 20 on the other hand, makes it possible to transfer part of the weight of the bucket 3 on the one hand to the lock 18, on the other hand to the hooks 17. It This results in a reduction of the stresses at the level of the lock and an improvement in security.

Par ailleurs, en cas d'usure dans le fond des crochets 17 du dispositif d'attache rapide 5, il y a un jeu entre l'axe de brochage et les crochets 17. Lors d'une baisse de la force de verrouillage appliquée au verrou 18, ou lorsque le verrou 18 est complètement sorti, un tel jeu peut être constaté. Selon l'invention, l'inclinaison des rampes en appui réciproque entraîne une force de réaction dont une composante, parallèle au plan 10 des axes géométriques des axes de brochage 8 et 9, a tendance à ramener l'axe de brochage de l'adaptateur réversible au fond de crochets 17.Furthermore, in the event of wear in the bottom of the hooks 17 of the quick-attach device 5, there is play between the broaching pin and the hooks 17. When the locking force applied to the latch 18, or when latch 18 is fully extended, such play can be observed. According to the invention, the inclination of the ramps in reciprocal support causes a reaction force, a component of which, parallel to the plane 10 of the geometric axes of the broaching axes 8 and 9, tends to bring the broaching axis of the adapter reversible at the bottom of hooks 17.

Selon un mode de réalisation de l'invention, les axes de brochage 8, 9, présentent dans leur zone centrale, une surface plane 21, 22, respectivement. Les surfaces planes 21 et 22 sont disposées symétriquement l'une de l'autre par rapport au plan médian 11. Elles sont inclinées dans le sens d'un rapprochement vers le bas. Elles jouent le rôle de surface de guidage du moyen de verrouillage du dispositif d'attache rapide 5 sur l'adaptateur réversible 4. Au cours de la mise en place du dispositif d'attache rapide 5 sur l'adaptateur réversible 4, la première phase consiste à rapprocher les crochets 17 d'un axe de brochage. Lorsque l'axe de brochage, 8 par exemple, est au fond des crochets 17, le dispositif d'attache rapide 5 est basculé en pivotant sur l'axe de brochage 8. Dans le cas d'un verrou 18 sollicité par ressort, au cours de ce pivotement du dispositif d'attache rapide 5, l'extrémité du pivot 18 arrive au contact de l'axe de brochage 9. En prenant appui sur la surface 22, le verrou 18 est repoussé dans sa gaine en comprimant son ressort. Lorsque l'extrémité libre du verrou 18 sort de la surface 22, le ressort repousse le verrou 18 qui assure le verrouillage sous l'axe de brochage 9. En variante, le verrou 18 arrière peut être sollicité par un vérin tel qu'un vérin hydraulique.According to one embodiment of the invention, the broaching pins 8, 9 have in their central zone a flat surface 21, 22, respectively. The flat surfaces 21 and 22 are arranged symmetrically to each other with respect to the median plane 11. They are inclined in the direction of approaching downwards. They play the role guide surface of the locking means of the quick-attach device 5 on the reversible adapter 4. During the establishment of the quick-attach device 5 on the reversible adapter 4, the first phase consists in bringing the hooks 17 of a broaching axis. When the broaching axis, 8 for example, is at the bottom of the hooks 17, the quick-attach device 5 is tilted by pivoting on the broaching axis 8. In the case of a spring-loaded lock 18, at the during this pivoting of the quick-release device 5, the end of the pivot 18 comes into contact with the broaching pin 9. By resting on the surface 22, the lock 18 is pushed back into its sheath by compressing its spring. When the free end of the lock 18 comes out of the surface 22, the spring pushes the lock 18 which ensures the locking under the broaching axis 9. Alternatively, the rear lock 18 can be acted upon by a jack such as a jack hydraulic.

Les avantages de l'invention sont liés à la disposition des rampes inclinées symétriques dans l'adaptateur réversible et dans le dispositif d'attache rapide. Un seul adaptateur réversible avec un profil de contact symétrique assure la reprise des efforts dans les deux modes de fonctionnement, rétro et chouleur. Le profil et l'angle des rampes inclinées sont déterminés pour apporter le meilleur compromis entre reprise d'effort et rattrapage de jeu, et une meilleure transmission des efforts de cavage, évitant la flexion sur l'axe de brochage assurant le verrouillage. Les contraintes mécaniques sont directement reprises par les plaques latérales de l'adaptateur réversible et sont ensuite diluées vers le godet 1 alors que dans l'art antérieur, une reprise centrale des contraintes provoque une flexion-compression de l'axe de brochage assurant le verrouillage, qui est néfaste à la tenue en fatigue. La dissociation entre les pièces assurant, d'une part la reprise des efforts principaux de cavage et d'autre part le verrouillage de l'attache rapide sur l'adaptateur réversible, induit une meilleure gestion de l'usure.The advantages of the invention are linked to the arrangement of the symmetrical inclined ramps in the reversible adapter and in the quick-attach device. A single reversible adapter with a symmetrical contact profile ensures the absorption of forces in the two operating modes, retro and chouleur. The profile and angle of the inclined ramps are determined to provide the best compromise between force absorption and play compensation, and better transmission of the digging forces, avoiding bending on the broaching pin ensuring the locking. The mechanical stresses are directly taken up by the side plates of the reversible adapter and are then diluted towards the cup 1 whereas in the prior art, a central take-up of the stresses causes a bending-compression of the broaching axis ensuring the locking , which is detrimental to fatigue resistance. The dissociation between the parts ensuring, on the one hand the recovery of the main breakout forces and on the other hand the locking of the quick coupler on the reversible adapter, induces better management of wear.

Claims (10)

  1. A quick-release device (5) for an earthmoving machine with an arm (2) for maneuvering a bucket, including two so-called front hooks (17), and a so-called rear latch (18), characterized in that it includes two inclined ramps (19, 20) arranged symmetrically on either side of the latch (18), the inclined plane of the two ramps (19, 20) passing below the hooks (17).
  2. The quick-release device according to claim 1, characterized in that the so-called rear latch (18) is a latch biased by a spring or by an actuator.
  3. An assembly for an earthmoving machine with an arm (2) for maneuvering a bucket, said assembly comprising a quick-release device (5) able to be fastened to the end of the maneuvering arm (2) of the machine and a reversible adapter (4) able to be coupled to the bucket, said reversible adapter (4) having two lateral plates (6, 7) connected by two pinning axes (8, 9) perpendicular to the planes of the lateral plates, said quick-release device (5) including two so-called front hooks (17), and a so-called rear latch (18), the front hooks (17) of the quick-release device (5) being designed to receive one of the pinning axes (8, 9) of the reversible adapter (4), the rear latch (18) being intended to be inserted below the other pinning axis of the reversible adapter (4) in the state of the reversible adapter (4) fastened to the quick-release device (5), characterized in that the quick-release device (5), which is according to one of claims 1 or 2, includes two inclined ramps (19, 20) arranged symmetrically on either side of the latch (18), the inclined plane of the two ramps (19, 20) passing below the hooks (17), in that the reversible adapter (4) includes at least two inclined ramps, and in that the inclined ramps (19, 20) of the quick-release device (5) reciprocally bear on the inclined ramps (13, 15; 16, 14) of the reversible adapter (4) in the state of the reversible adapter (4) fastened to the quick-release device (5).
  4. An earthmoving machine, with a quick-release device and a reversible adapter for a bucket including a maneuvering arm (2) at the end of which the quick-release device (5) is able to be fastened, said quick-release device (5) including two so-called front hooks (17), arranged symmetrically relative to a vertical plane passing through the longitudinal axis of the maneuvering arm (2) and called reference plane (1), and a so-called rear latch (18) movable in said reference plane, the reversible adapter (4) including two lateral plates (6, 7) that are symmetrical relative to said reference plane and that are connected by two pinning axes (8, 9) that are perpendicular to said plane of symmetry, characterized in that the quick-release device (5), which is according to one of claims 1 or 2, includes two inclined ramps (19, 20) that are arranged symmetrically on either side of the latch (18), the inclined plane of the two ramps (19, 20) passing below the hooks (17), in that the reversible adapter (4) includes at least two inclined ramps, and in that the inclined ramps (19, 20) of the quick-release device (5) reciprocally bear on the inclined ramps (13, 15; 16, 14) of the reversible adapter (4).
  5. The machine according to claim 4, characterized in that there are four inclined ramps (13, 14; 15, 16) of the reversible adapter (4), two on each lateral plate (6, 7) of the reversible adapter (4).
  6. The machine according to claim 5, characterized in that the two inclined ramps (13, 14; 15, 16) of each lateral plate (6, 7) of the reversible adapter (4) are symmetrical to one another, and also inclined in the plane (10) defined by the geometric axes of the pinning axes (8, 9).
  7. The machine according to one of claims 4 to 6, characterized in that the incline angle of the inclined ramps (13, 14; 15, 16; 19, 20) in the plane defined by the geometric axes of the pinning axes (8, 9) is between 5 and 45°.
  8. The machine according to claim 7, characterized in that the incline angle of the inclined ramps (13, 14; 15, 16; 19, 20) in the plane defined by the geometric axes of the pinning axes (8, 9) is between 10 and 30°.
  9. The machine according to claim 8, characterized in that the incline angle of the inclined ramps (13, 14; 15, 16; 19, 20) in the plane defined by the geometric axes of the pinning axes (8, 9) is 20°.
  10. The machine according to one of claims 4 to 9, characterized in that the inclined ramps (19, 20) of the quick-release device (5) have the same incline as the inclined ramps (13, 15; 16, 14) of the reversible adapter (4) with which they reciprocally bear.
EP17816931.4A 2016-12-05 2017-11-29 Earthmoving machine comprising a quick-release device and a reversible adapter for a bucket Active EP3548671B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1661938A FR3059685B1 (en) 2016-12-05 2016-12-05 GROUNDING MACHINE WITH RAPID ATTACHMENT DEVICE AND REVERSIBLE ADAPTER FOR BUCKET
PCT/FR2017/053281 WO2018104614A1 (en) 2016-12-05 2017-11-29 Earthmoving machine comprising a quick-release device and a reversible adapter for a bucket

Publications (2)

Publication Number Publication Date
EP3548671A1 EP3548671A1 (en) 2019-10-09
EP3548671B1 true EP3548671B1 (en) 2023-05-31

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Application Number Title Priority Date Filing Date
EP17816931.4A Active EP3548671B1 (en) 2016-12-05 2017-11-29 Earthmoving machine comprising a quick-release device and a reversible adapter for a bucket

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EP (1) EP3548671B1 (en)
ES (1) ES2953517T3 (en)
FR (1) FR3059685B1 (en)
PL (1) PL3548671T3 (en)
WO (1) WO2018104614A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019227472A1 (en) * 2018-06-01 2019-12-05 Guangxi Liugong Machinery Co., Ltd. Multiple interface tool for a construction machine
DE102022127836A1 (en) 2022-10-21 2024-05-02 Liebherr-Hydraulikbagger Gmbh Excavator bucket

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2230981B1 (en) * 2003-01-24 2007-03-01 Claudi Herguido Fo QUICK COUPLING DEVICE FOR IMPLEMENTS OF EXCAVATING MACHINES OR ANALOGS.
DE102005037105C5 (en) * 2005-08-03 2011-06-22 Lehnhoff Hartstahl GmbH & Co. KG, 76534 Adapter for a working device as part of a quick-change device and quick-change device
US9970177B2 (en) * 2015-05-04 2018-05-15 Deere & Company Quick coupler having spring applied, hydraulically released primary and secondary lock members mounted on same cross shaft

Also Published As

Publication number Publication date
FR3059685B1 (en) 2019-10-04
FR3059685A1 (en) 2018-06-08
ES2953517T3 (en) 2023-11-14
WO2018104614A1 (en) 2018-06-14
EP3548671A1 (en) 2019-10-09
PL3548671T3 (en) 2023-10-02

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