WO2019197010A1 - Tête de coupe pour débroussailleuse, coupe-bordures ou similaire - Google Patents

Tête de coupe pour débroussailleuse, coupe-bordures ou similaire Download PDF

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Publication number
WO2019197010A1
WO2019197010A1 PCT/EP2018/058987 EP2018058987W WO2019197010A1 WO 2019197010 A1 WO2019197010 A1 WO 2019197010A1 EP 2018058987 W EP2018058987 W EP 2018058987W WO 2019197010 A1 WO2019197010 A1 WO 2019197010A1
Authority
WO
WIPO (PCT)
Prior art keywords
disk
motorized
cutting head
comb
disks
Prior art date
Application number
PCT/EP2018/058987
Other languages
English (en)
Inventor
Xavier David Beaulieu
Original Assignee
Vitirover
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Vitirover filed Critical Vitirover
Priority to PCT/EP2018/058987 priority Critical patent/WO2019197010A1/fr
Publication of WO2019197010A1 publication Critical patent/WO2019197010A1/fr
Priority to US17/065,935 priority patent/US20210022292A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/67—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator
    • A01D34/68—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator with motor driven cutters or wheels
    • A01D34/685—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis hand-guided by a walking operator with motor driven cutters or wheels with two or more cutters
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/73—Cutting apparatus
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/64—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
    • A01D34/66—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle with two or more cutters
    • A01D34/664—Disc cutter bars

Definitions

  • the invention relates to a cutting head for a brush cutter, edge trimmer or the like. More precisely, the invention relates to a cutting head comprising a comb and a plurality of motorized disks aligned transversely, rotatably mounted on the comb, wherein the motorized disk support a plurality of articulated blades on the disk and adapted to extend radially relative to the rotation axis of said disks under the effect of the centrifugal force.
  • Such a cutting head is known from the prior art.
  • the advantages of a front-cutting module are known, such as being used in difficult access places.
  • An object of the invention is, in particular, to remedy all or part of the aforementioned disadvantages.
  • the invention relates, according to a first aspect of the invention, to a cutting head for a brush cutter, edge trimmer or the like, comprising a front cutting module comprising a comb having longitudinally extending teeth and a plurality of N motorized disk aligned transversely, at least one disk of said plurality of motorized disk being rotatably mounted on the comb around a rotation axis, wherein at least one disk of the plurality of motorized disk supports a plurality of articulated blades over the said disk and adapted to extend radially relative to the rotation axis of said disk under the effect of the centrifugal force, said comb having a width at least equal to N times the cut diameter of the cut area of a motorized disk, wherein at least two consecutive motorized disks of said plurality of motorized disks are coplanar and wherein the distance between the axis of said at least two consecutive motorized disks is between 1 and 1,2 times the cut diameter of a disk of said at least two consecutive motorized disks.
  • Such a cutting head is easier to make than the one according the prior art.
  • Such a cutting head avoid cutting twice the same grass.
  • each disk of said plurality of motorized disk is rotatably mounted on the comb around a rotation axis.
  • each disk of the plurality of motorized disk supports a plurality of articulated blades over the said disk and adapted to extend radially relative to the rotation axis of said disk under the effect of the centrifugal force.
  • a blade may be mounted rotatably on the disk on which said blade is articulated.
  • the cut area of a disk is the area cut by all the blades articulated on said disk when the blades are in the extended position.
  • the cut area of the front cutting module is the union of each of the cut area of the motorized disk.
  • each disk of said plurality of motorized disk is driven in rotation by a rotor of a motor, said motor having a stator secured on the front cutting module.
  • Said motor may drive only one disk.
  • such of motor may be a stepper motor.
  • the comb may have interposed teeth extending longitudinally along a central axis perpendicular to the axes of two consecutive motorized disks.
  • a comb according to this embodiment does not to leave an uncut grass between the two disks.
  • the comb has teeth whose ends extend in an arcuate area.
  • the comb may have a conformation comprising a passage forming a path for discharging grass cut by the articulated blades.
  • a comb according to this embodiment keeps the teeth clean and not stuck by the cutting grass.
  • the passage may be a means for cutting the grass in a reverse direction.
  • the rounded shape of the outer tooth might allow to slide on the vine without damaging it. Teeth might help guiding the grass for cutting.
  • the shape of the comb might be designed to protect the cutting discs, so that only the blade is in contact with the grass and/or so that the disc never comes into contact with pebbles, branches ...
  • coupling means are provided with a cutting head according to the first aspect of the invention, or one or more of its improvement elements.
  • a scooter is provided with a cutting head according to the first aspect of the invention, or one or more of its improvement elements.
  • a segway is provided with a cutting head according to the first aspect of the invention, or one or more of its improvement elements.
  • a robot is provided with a cutting head according to the first aspect of the invention, or one or more of its improvement elements.
  • FIG. 1 is a schematic representation of an embodiment of a cutting head according to the invention.
  • - Figure 2 is a schematic representation of a scooter according to an embodiment of the invention
  • - Figure 3 is a schematic representation of a segway according to an embodiment of the invention
  • FIG. 4 is a schematic representation of a robot according to an embodiment of the invention.
  • FIG. 5 is a schematic representation of another scooter according to an embodiment of the invention.
  • FIG. 6 is a schematic representation of another embodiment of a cutting head according to the invention.
  • variants of the invention comprising only a selection of characteristics described, subsequently isolated from the other characteristics described, if this selection of characteristics is sufficient to confer a technical advantage or to differentiate the invention from the state of the art.
  • This selection comprises at least one characteristic, preferably functional without structural details, or with only a part of the structural details if this part only is sufficient to confer a technical advantage or to differentiate the invention from the prior art.
  • Figure 1 illustrates a cutting head 1 for a brush cutter, edge trimmer or the like.
  • the cutting head 1 comprising a front cutting module 2.
  • the front cutting module 2 comprises:
  • the longitudinal direction is the displacement direction of the cutting head.
  • the transversal direction is the direction which is orthogonal to the displacement direction in a plane which is parallel to the ground on which the cutting head is displaced.
  • Each disk of the plurality of motorized disk is rotatably mounted on the comb 3 around a rotation axis.
  • Each disk of said plurality of motorized disk is driven in rotation by a rotor of a motor (not shown), said motor having a stator secured on the front cutting module 2.
  • Each disk supports a plurality of articulated blades adapted to extend radially relative to the rotation axis of the disk under the effect of the centrifugal force.
  • Figure 1 illustrates three blades 8, 9, 10, fixed on disk 5.
  • the width 13 of the comb 3 is greater than three times the cut diameter 14 of the cut area 15.
  • the cut area 15 of a blade when moved by the centrifugal force, is a disk represented by a grayed area.
  • the distance 16 between the axis of two consecutive motorized disks such as motorized disks 5 and 6 is between 2 and 2.4 times the radius of the cut area.
  • the comb 3 has interposed teeth 17 extending longitudinally along a central axis perpendicular to the axes of consecutive motorized disks 5 and 6.
  • the comb 3 has interposed teeth 18 extending longitudinally along a central axis perpendicular to the axes of consecutive motorized disks 6 and 7.
  • the comb 3 has teeth 19 whose ends extend in an arcuate area 20.
  • the comb 3 has a conformation comprising a passage 21 forming a path 22 for discharging grass cut by the blades 8, 9, 10,.
  • the cutting head 1 has a conformation comprising a passage 21.
  • the passage 21 forms a path 22 for discharging grass cut by the articulated blades 8, 9, 10. (see figure 1).
  • the passage 21 is a means for cutting the grass in a reverse direction, i.e in a displacement of the cutting head following the arrow 22.
  • FIG. 2 is a schematic representation of a scooter 23 according to an embodiment of the invention.
  • the scooter 23 is coupled to the cutting 1 head by means of coupling means 22.
  • FIG. 3 is a schematic representation of a segway 24 according to an embodiment of the invention.
  • FIG. 4 is a schematic representation of a robot 25 according to an embodiment of the invention.
  • the robot 25 includes the cutting head 1 and is, in the embodiment illustrated, an autonomous robot.
  • FIG. 5 is a schematic representation of another scooter 26 according to an embodiment of the invention.
  • Figure 6 is a schematic representation of another embodiment 100 of a cutting head according to the invention.
  • the cutting head 100 comprising a front cutting module 200.
  • the front cutting module 200 comprises:
  • the front cutting module 200 might be can be adjusted in height with respect to a device 800 connected to the robot chassis.
  • the device 800 comprises a switch 802.
  • the switch 802 When the switch 802 is possessed at the top, it causes a height adjustment upwards by operating a motor 804 lifting in one direction.
  • This block is in slide connection with two guides 810 and 812.

Landscapes

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

Abstract

L'invention concerne une tête de coupe (1) pour débroussailleuse, coupe-bordures ou similaire, qui comprend : un module de coupe frontal (2) muni d'un peigne (3) dont les aiguilles s'étendent longitudinalement (4) et d'une pluralité de N disques motorisés (5, 6, 7) alignés transversalement, chaque disque de ladite pluralité de disques motorisés étant monté rotatif sur le peigne autour d'un axe de rotation. Chaque disque de la pluralité de disques motorisés porte une pluralité de lames articulées (8, 9, 10) sur ledit disque et pouvant s'étendre radialement par rapport à l'axe de rotation dudit disque sous l'effet de la force centrifuge. Ledit peigne présente une largeur (13) au moins égale à N fois le diamètre de coupe (14) de la zone de coupe (15) constitué d'un disque de ladite pluralité de disques motorisés et d'une lame déployée dudit disque, et se caractérise en ce que ladite pluralité de disques motorisés sont coplanaires et que la distance (16) entre l'axe de deux disques motorisés consécutifs est comprise entre 1 et 1,2 fois le diamètre de coupe par la lame dans la position déployée.
PCT/EP2018/058987 2018-04-09 2018-04-09 Tête de coupe pour débroussailleuse, coupe-bordures ou similaire WO2019197010A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/EP2018/058987 WO2019197010A1 (fr) 2018-04-09 2018-04-09 Tête de coupe pour débroussailleuse, coupe-bordures ou similaire
US17/065,935 US20210022292A1 (en) 2018-04-09 2020-10-08 Robot and method for controlling the robot

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2018/058987 WO2019197010A1 (fr) 2018-04-09 2018-04-09 Tête de coupe pour débroussailleuse, coupe-bordures ou similaire

Related Child Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/058989 Continuation-In-Part WO2019197011A1 (fr) 2018-04-09 2018-04-09 Module de connexion pour débroussailleuse, taille-haie ou similaires

Publications (1)

Publication Number Publication Date
WO2019197010A1 true WO2019197010A1 (fr) 2019-10-17

Family

ID=61965984

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/058987 WO2019197010A1 (fr) 2018-04-09 2018-04-09 Tête de coupe pour débroussailleuse, coupe-bordures ou similaire

Country Status (1)

Country Link
WO (1) WO2019197010A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022203561A1 (fr) * 2021-03-24 2022-09-29 Husqvarna Ab Tondeuse à gazon robotisée

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2479015A (en) * 1948-05-14 1949-08-16 James A Mchugh Power actuated lawn mower
GB1591489A (en) * 1978-02-07 1981-06-24 Vicon Nv Mowing device
EP0057936A2 (fr) * 1981-02-10 1982-08-18 Josef Lesslhumer Faucheuse à rotors
WO2000074466A1 (fr) * 1999-06-04 2000-12-14 Solar & Robotics S.A. Ameliorations a une tete de coupe
US20060090441A1 (en) * 2004-11-04 2006-05-04 Chiu Chien L Lawn mower/lawn edger for use with an electric scooter
US20090078485A1 (en) * 2007-09-20 2009-03-26 Evonik Degussa Gmbh Single-axle vehicle with a platform and/or a seat for a driver

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2479015A (en) * 1948-05-14 1949-08-16 James A Mchugh Power actuated lawn mower
GB1591489A (en) * 1978-02-07 1981-06-24 Vicon Nv Mowing device
EP0057936A2 (fr) * 1981-02-10 1982-08-18 Josef Lesslhumer Faucheuse à rotors
WO2000074466A1 (fr) * 1999-06-04 2000-12-14 Solar & Robotics S.A. Ameliorations a une tete de coupe
US20060090441A1 (en) * 2004-11-04 2006-05-04 Chiu Chien L Lawn mower/lawn edger for use with an electric scooter
US20090078485A1 (en) * 2007-09-20 2009-03-26 Evonik Degussa Gmbh Single-axle vehicle with a platform and/or a seat for a driver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022203561A1 (fr) * 2021-03-24 2022-09-29 Husqvarna Ab Tondeuse à gazon robotisée

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