FR2942369A1 - Mowing, clearing and pruning machine for use with vehicle to carry out maintenance work at edges of e.g. road, has front offset arm whose rotation angle is regulated between values by offset actuator articulated on end of suspension rod - Google Patents

Mowing, clearing and pruning machine for use with vehicle to carry out maintenance work at edges of e.g. road, has front offset arm whose rotation angle is regulated between values by offset actuator articulated on end of suspension rod Download PDF

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Publication number
FR2942369A1
FR2942369A1 FR0900767A FR0900767A FR2942369A1 FR 2942369 A1 FR2942369 A1 FR 2942369A1 FR 0900767 A FR0900767 A FR 0900767A FR 0900767 A FR0900767 A FR 0900767A FR 2942369 A1 FR2942369 A1 FR 2942369A1
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France
Prior art keywords
offset
balance
arm
tool
axis
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
FR0900767A
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French (fr)
Inventor
Aurelien Fauconnet
Franck Pleyau
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SIGNALISATION MODERNE AUTOROUT
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SIGNALISATION MODERNE AUTOROUT
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Priority to FR0900767A priority Critical patent/FR2942369A1/en
Publication of FR2942369A1 publication Critical patent/FR2942369A1/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D34/00Mowers; Mowing apparatus of harvesters
    • A01D34/835Mowers; Mowing apparatus of harvesters specially adapted for particular purposes
    • A01D34/86Mowers; Mowing apparatus of harvesters specially adapted for particular purposes for use on sloping ground, e.g. on embankments or in ditches
    • A01D34/866Mounting means
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28Dredgers; 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
    • E02F3/30Dredgers; 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 with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/301Dredgers; 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 with a dipper-arm pivoted on a cantilever beam, i.e. boom with more than two arms (boom included), e.g. two-part boom with additional dipper-arm
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28Dredgers; 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
    • E02F3/30Dredgers; 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 with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/307Dredgers; 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 with a dipper-arm pivoted on a cantilever beam, i.e. boom the boom and the dipper-arm being connected so as to permit relative movement in more than one plane
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F5/00Dredgers or soil-shifting machines for special purposes
    • E02F5/28Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
    • E02F5/282Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways with rotating cutting or digging tools

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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)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Harvester Elements (AREA)

Abstract

The machine has an articulated arm (4) placed on a frame (2). A front offset arm (8) is consisted by a beam (9) located towards the frame. Rotation angle of the offset arm around an axis (10) with a base of a first suspension rod (12) is regulated between values close to 90 or 180 degrees by an offset actuator (16) articulated at an end on the base of the rod. A rotation angle of the offset arm around second suspension rod (13) is regulated between values close to 90 or 180 degrees by an offset actuator (17) articulated on the beam of the offset arm and an end of a third suspension rod (15).

Description

La présente invention concerne une machine pour effectuer des travaux de fauchage/débroussaillage et d'élagage, nécessaires à l'entretien des bords de route, des haies et des espaces verts. L'opérateur conduisant le véhicule dispose de commandes lui permettant de régler la position 5 de l'outil de coupe et de broyage en modifiant la géométrie du bras articulé supportant cet outil. La plupart des machines de fauchage/débroussaillage et d'élagage actuelles comprennent un bâti porté à l'arrière d'un véhicule, un bras articulé généralement monté pivotant sur le bâti et comprenant une flèche et un balancier articulé sur celle-ci, un outil de coupe et de broyage orientable monté à l'extrémité libre du bras articulé.The present invention relates to a machine for mowing / brushing and pruning, necessary for the maintenance of road edges, hedges and green areas. The operator driving the vehicle has controls enabling him to adjust the position 5 of the cutting and grinding tool by modifying the geometry of the articulated arm supporting this tool. Most current mowing / brushing and pruning machines comprise a frame carried on the rear of a vehicle, an articulated arm generally pivotally mounted on the frame and comprising an arrow and a rocker hinged thereto, a tool cutting and swiveling grinding mounted at the free end of the articulated arm.

10 Une première solution connue de réalisation du bras articulé consiste à positionner la flèche et le balancier dans un même plan frontal. Dans ce cas, au travail, le conducteur est obligé de se retourner très fréquemment pour surveiller la zone d'évolution de l'outil situé , la plupart du temps, dans le secteur arrière droit par rapport à son siège. Cette situation présente une mauvaise ergonomie avec des risques de douleurs physiques.A first known solution for producing the articulated arm consists in positioning the boom and the balance in the same frontal plane. In this case, at work, the driver is obliged to turn very frequently to monitor the area of evolution of the tool located, most of the time, in the right rear sector relative to its seat. This situation has poor ergonomics with risks of physical pain.

15 Une deuxième solution connue consiste à installer un balancier en forme de S rigide, positionné dans un plan longitudinal, qui permet de déporter l'outil vers l'avant, et ainsi d'améliorer l'ergonomie au travail. Une troisième solution connue comporte un balancier en forme de L rigide, positionné également dans un plan longitudinal, pour augmenter encore le déport vers l'avant. L'ergonomie s'en 20 trouve encore améliorée, mais ces solutions correspondent à des conditions de chantier limitées. La présente invention permet d'améliorer la polyvalence de la machine, tout en optimisant l'ergonomie au travail, et pour ce faire, elle a pour objet un bras de déport avant réglable, intégré au balancier, de façon à pouvoir augmenter considérablement le déport de l'outil de coupe vers l'avant dans la configuration la mieux adaptée au positionnement adéquat de l'outil.A second known solution is to install a rigid S-shaped beam, positioned in a longitudinal plane, which allows the tool to be moved forward, thus improving ergonomics at work. A third known solution comprises a rigid L-shaped beam, also positioned in a longitudinal plane, to further increase the offset to the front. The ergonomics are further improved, but these solutions correspond to limited construction conditions. The present invention makes it possible to improve the versatility of the machine, while optimizing the ergonomics at work, and to do this, it relates to an adjustable front offset arm, integrated in the balance, so as to significantly increase the offset the cutting tool forward in the configuration best suited to the proper positioning of the tool.

25 Le bras de déport avant réglable (8) est réalisé, selon une première caractéristique, en trois segments, le segment central étant une poutre(9) pivotant à son extrémité située vers le bâti, autour d'un axe (10) sensiblement perpendiculaire à l'axe d'articulation flèche/balancier (11) et solidaire du premier segment constitué par l'embase (12) du balancier , et à l'autre extrémité, située vers l'outil (7), autour d'un axe (13) sensiblement perpendiculaire à l'axe d'articulation balancier/outil (14) et solidaire 30 du troisième segment constitué par l'extrémité (15) du balancier . L'angle de rotation du bras de déport avant autour de l'axe avec l'embase du balancier est réglé entre une valeur minimale voisine de 90° et une valeur maximale voisine de 180° par un premier actionneur de déport articulé à une extrémité sur l'embase du balancier et à l'autre extrémité sur la poutre du bras de déport.The front adjustable offset arm (8) is made, according to a first characteristic, in three segments, the central segment being a beam (9) pivoting at its end located towards the frame, about a substantially perpendicular axis (10). to the axis of articulation arrow / pendulum (11) and secured to the first segment constituted by the base (12) of the balance, and at the other end, located towards the tool (7), about an axis (13) substantially perpendicular to the axis of rocking articulation / tool (14) and integral 30 of the third segment formed by the end (15) of the balance. The angle of rotation of the front offset arm about the axis with the base of the balance is set between a minimum value close to 90 ° and a maximum value close to 180 ° by a first offset actuator articulated at one end on the base of the balance and at the other end on the beam of the offset arm.

35 L'angle de rotation du bras de déport avant autour de l'axe avec l'extrémité du balancier est réglé entre une valeur minimale voisine de 90° et une valeur maximale voisine de 180° par un deuxième actionneur de déport articulé d'une part sur la poutre du bras de déport et d'autre part sur l'extrémité du balancier. Selon un mode de réalisation préféré, le premier actionneur de déport et le deuxième actionneur de déport sont constitués par deux vérins hydrauliques à double effet de sections différentes, asservis par un système de contrôle-commande comportant un circuit hydraulique avec plusieurs distributeurs, et une interface de commande par l'opérateur. Les dessins annexés illustrent l'invention. La figure 1 représente la machine lorsque le déport de l'outil (7) est réglé au maximum vers l'avant : • le premier mode de fonctionnement du système de contrôle-commande des vérins (16) et (17) permet de modifier simultanément les deux angles de rotation de la poutre (9) du bras de déport avant réglable (8) autour des axes (10) et (13) de la même valeur, de façon à régler le déport avant de l'outil en conservant le parallélisme entre l'embase du balancier (12) et l'extrémité (15) dudit balancier, afin que l'axe de rotation du rotor de l'outil de coupe soit sensiblement perpendiculaire à la direction d'avancement du véhicule ; • la poutre (9) du bras de déport avant réglable (8) est sensiblement perpendiculaire à la flèche (5), et à l'extrémité (15) du balancier ; • dans ce mode de fonctionnement, la synchronisation du déplacement des tiges des vérins (16) et (17) est réalisée par conservation du volume d'huile échangé entre la chambre côté tige du vérin (16), et la chambre côté fond du vérin (17) , la section annulaire de la chambre côté tige du vérin (16) étant sensiblement égale à la section de la chambre côté fond du vérin (17). La figure 2 représente la machine lorsque le déport de l'outil (7) est réglé au minimum vers l'avant : la poutre (9) du bras de déport avant réglable (8) est sensiblement parallèle à la flèche (5), et à l'extrémité (15) du balancier. Le deuxième mode de fonctionnement du système de contrôle-commande des vérins (16) et (17) perrnet de régler indépendamment la longueur de chaque vérin, et donc les deux angles de rotation de la poutre (9) du bras de déport (8), de façon à configurer la géométrie du bras articulé (4) pour amener l'outil (9) en position de transport, et obtenir un encombrement transversal minimal de la machine attelée au véhicule. The angle of rotation of the front offset arm about the axis with the end of the balance is set between a minimum value close to 90 ° and a maximum value close to 180 ° by a second articulated offset actuator of a part on the beam of the offset arm and secondly on the end of the balance. According to a preferred embodiment, the first offset actuator and the second offset actuator are constituted by two double-acting hydraulic cylinders of different sections, servo-controlled by a control system comprising a hydraulic circuit with several distributors, and an interface control by the operator. The accompanying drawings illustrate the invention. Figure 1 shows the machine when the offset of the tool (7) is set to the maximum forward: • the first operating mode of the control system of the cylinders (16) and (17) can be modified simultaneously the two angles of rotation of the beam (9) of the adjustable front offset arm (8) around the axes (10) and (13) of the same value, so as to adjust the front offset of the tool while maintaining the parallelism between the base of the balance (12) and the end (15) of said balance, so that the axis of rotation of the rotor of the cutting tool is substantially perpendicular to the direction of travel of the vehicle; • the beam (9) of the adjustable front offset arm (8) is substantially perpendicular to the arrow (5), and the end (15) of the beam; In this operating mode, the synchronization of the displacement of the rods of the cylinders (16) and (17) is achieved by preserving the volume of oil exchanged between the chamber rod side of the jack (16), and the chamber bottom side of the jack (17), the annular section of the rod side chamber of the cylinder (16) being substantially equal to the cross section of the bottom side of the cylinder chamber (17). FIG. 2 shows the machine when the offset of the tool (7) is set at least towards the front: the beam (9) of the adjustable front offset arm (8) is substantially parallel to the arrow (5), and at the end (15) of the balance. The second operating mode of the control system of the cylinders (16) and (17) can independently adjust the length of each cylinder, and therefore the two rotation angles of the beam (9) of the offset arm (8). , so as to configure the geometry of the articulated arm (4) to bring the tool (9) to the transport position, and obtain a minimum transverse size of the machine coupled to the vehicle.

Claims (3)

REVENDICATIONS1) Machine (1) pour effectuer des travaux de fauchage/débroussaillage et d'élagage, comprenant un bâti (2) porté par un véhicule (3), un bras articulé (4) généralement monté pivotant sur le bâti et comprenant une flèche (5) et un balancier (6), un outil de coupe (7) porté par le balancier, et un bras de déport avant réglable (8) intégré dans le balancier, de façon à déporter l'outil de coupe vers l'avant dans la configuration la mieux adaptée au positionnement adéquat de l'outil , caractérisée en ce que : • le bras de déport avant (8) est constitué par une poutre (9) pivotant à son extrémité située vers le bâti, autour d'un axe (10) sensiblement perpendiculaire à l'axe d'articulation (11) flèche/balancier et solidaire de l'embase du balancier (12), et à l'autre extrémité, située vers l'outil, autour d'un axe (13) sensiblement perpendiculaire à l'axe d'articulation (14) balancier/outil et solidaire de l'extrémité du balancier (15) ; • l'angle de rotation du bras de déport avant (8) autour de l'axe (10) avec l'embase du balancier (12) est réglé entre des valeurs voisines de 90° à 180° par un premier actionneur de déport (16) articulé à une extrémité sur l'embase du balancier (12) et à l'autre extrémité sur la poutre (9) du bras de déport (8); • l'angle de rotation du bras de déport avant (8) autour de l'axe (13) avec l'extrémité du balancier (15) est réglé entre des valeurs voisines de 90° à 180° par un deuxième actionneur de déport (17) articulé d'une part sur la poutre (9) du bras de déport (8) et d'autre part sur l'extrémité du balancier (15) . CLAIMS1) Machine (1) for mowing / brushing and pruning work, comprising a frame (2) carried by a vehicle (3), an articulated arm (4) generally pivotally mounted on the frame and comprising an arrow ( 5) and a rocker (6), a cutting tool (7) carried by the rocker, and an adjustable front offset arm (8) integrated in the rocker, so as to deport the cutting tool forward in the configuration best suited to the proper positioning of the tool, characterized in that: • the front offset arm (8) is constituted by a beam (9) pivoting at its end located towards the frame, about an axis ( 10) substantially perpendicular to the axis of articulation (11) arrow / balance and secured to the base of the balance (12), and at the other end, located towards the tool, about an axis (13) substantially perpendicular to the axis of articulation (14) balance / tool and integral with the end of the balance (15); The angle of rotation of the front offset arm (8) around the axis (10) with the base of the balance (12) is set between values close to 90 ° to 180 ° by a first offset actuator ( 16) articulated at one end to the base of the rocker arm (12) and at the other end to the beam (9) of the offset arm (8); The angle of rotation of the front offset arm (8) around the axis (13) with the end of the balance (15) is set between values close to 90 ° to 180 ° by a second offset actuator ( 17) hinged on the one hand on the beam (9) of the offset arm (8) and on the other hand on the end of the beam (15). 2) Machine (1) selon revendication 1, caractérisée en ce que le premier actionneur de déport (16) et le deuxième actionneur de déport (17) sont constitués par deux vérins hydrauliques à double effet de sections différentes, asservis par un système de contrôle-commande comportant un circuit hydraulique et une interface de commande par l'opérateur. 2) Machine (1) according to claim 1, characterized in that the first offset actuator (16) and the second offset actuator (17) are constituted by two hydraulic cylinders double effect of different sections, controlled by a control system control comprising a hydraulic circuit and a control interface by the operator. 3) Machine (1) selon revendication 3, caractérisée en ce que le système de contrôle-commande comporte au moins deux modes de fonctionnement : • le premier mode permettant de modifier simultanément les deux angles de rotation du bras de déport avant réglable (8) autour des axes (10) et (13) de la même valeur, de façon à régler le déport avant de l'outil en conservant le parallélisme entre l'embase du balancier (12) et l'extrémité (15) dudit balancier, • le deuxième mode permettant de régler indépendamment les deux angles de rotation du bras de déport (8), de façon à configurer la géométrie du bras articulé (4) pour amener l'outil (9) en position de transport. 3) Machine (1) according to claim 3, characterized in that the control system comprises at least two modes of operation: • the first mode for simultaneously changing the two rotation angles of the adjustable front offset arm (8) around the axes (10) and (13) of the same value, so as to adjust the front offset of the tool maintaining the parallelism between the base of the balance (12) and the end (15) of said balance, • the second mode for independently adjusting the two rotation angles of the offset arm (8), so as to configure the geometry of the articulated arm (4) to bring the tool (9) in the transport position.
FR0900767A 2009-02-20 2009-02-20 Mowing, clearing and pruning machine for use with vehicle to carry out maintenance work at edges of e.g. road, has front offset arm whose rotation angle is regulated between values by offset actuator articulated on end of suspension rod Pending FR2942369A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0900767A FR2942369A1 (en) 2009-02-20 2009-02-20 Mowing, clearing and pruning machine for use with vehicle to carry out maintenance work at edges of e.g. road, has front offset arm whose rotation angle is regulated between values by offset actuator articulated on end of suspension rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0900767A FR2942369A1 (en) 2009-02-20 2009-02-20 Mowing, clearing and pruning machine for use with vehicle to carry out maintenance work at edges of e.g. road, has front offset arm whose rotation angle is regulated between values by offset actuator articulated on end of suspension rod

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FR2942369A1 true FR2942369A1 (en) 2010-08-27

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FR0900767A Pending FR2942369A1 (en) 2009-02-20 2009-02-20 Mowing, clearing and pruning machine for use with vehicle to carry out maintenance work at edges of e.g. road, has front offset arm whose rotation angle is regulated between values by offset actuator articulated on end of suspension rod

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108738802A (en) * 2018-05-23 2018-11-06 合肥学院 A kind of GREEB HEDGE MACHINE having overturning shearing function

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5775075A (en) * 1996-09-24 1998-07-07 Dannar; Gary D. Articulated boom assembly
EP1297732A1 (en) * 2001-09-27 2003-04-02 Ferri S.rl. Articulated hydraulic arm device particularly for an agricultural tool
EP1327721A1 (en) * 2002-01-09 2003-07-16 Ferri S.rl. Safety device for articulated arm
FR2882499A1 (en) * 2005-02-25 2006-09-01 Signalisation Moderne Autorout ARTICULATED-ARM MOWER / BRUSHING AND REMOVAL MACHINE COMPRISING A REMOVABLE TRUNK

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5775075A (en) * 1996-09-24 1998-07-07 Dannar; Gary D. Articulated boom assembly
EP1297732A1 (en) * 2001-09-27 2003-04-02 Ferri S.rl. Articulated hydraulic arm device particularly for an agricultural tool
EP1327721A1 (en) * 2002-01-09 2003-07-16 Ferri S.rl. Safety device for articulated arm
FR2882499A1 (en) * 2005-02-25 2006-09-01 Signalisation Moderne Autorout ARTICULATED-ARM MOWER / BRUSHING AND REMOVAL MACHINE COMPRISING A REMOVABLE TRUNK

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108738802A (en) * 2018-05-23 2018-11-06 合肥学院 A kind of GREEB HEDGE MACHINE having overturning shearing function

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