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FR2609857A1 - System for automatically performing agricultural work such as mowing the lawn - Google Patents

System for automatically performing agricultural work such as mowing the lawn Download PDF

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Publication number
FR2609857A1
FR2609857A1 FR8700723A FR8700723A FR2609857A1 FR 2609857 A1 FR2609857 A1 FR 2609857A1 FR 8700723 A FR8700723 A FR 8700723A FR 8700723 A FR8700723 A FR 8700723A FR 2609857 A1 FR2609857 A1 FR 2609857A1
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France
Prior art keywords
lawn
mowing
guide rail
tube
rolling members
Prior art date
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Granted
Application number
FR8700723A
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French (fr)
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FR2609857B1 (en
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to FR8700723A priority Critical patent/FR2609857B1/en
Priority to EP87480012A priority patent/EP0266295A1/en
Priority to US07/101,027 priority patent/US4831813A/en
Publication of FR2609857A1 publication Critical patent/FR2609857A1/en
Application granted granted Critical
Publication of FR2609857B1 publication Critical patent/FR2609857B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A01D34/006Control or measuring arrangements
    • A01D34/008Control or measuring arrangements for automated or remotely controlled operation
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01BSOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B69/00Steering of agricultural machines or implements; Guiding agricultural machines or implements on a desired track
    • A01B69/007Steering or guiding of agricultural vehicles, e.g. steering of the tractor to keep the plough in the furrow
    • A01B69/008Steering or guiding of agricultural vehicles, e.g. steering of the tractor to keep the plough in the furrow automatic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D1/00Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/24Steering controls, i.e. means for initiating a change of direction of the vehicle not vehicle-mounted
    • B62D1/26Steering controls, i.e. means for initiating a change of direction of the vehicle not vehicle-mounted mechanical, e.g. by a non-load-bearing guide
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D2101/00Lawn-mowers

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Environmental Sciences (AREA)
  • Soil Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Harvester Elements (AREA)

Abstract

The invention relates to a system for automatically performing agricultural work such as mowing the lawn. It comprises in combination a guide rail 10 substantially buried in the ground and an agricultural vehicle such as a lawnmower fitted with a support chassis 1 for a drive motor 3 and a tool 2 such as a cutting bar, the said support chassis bearing on the ground by means of a front prop carrying at its lower end a guide member 8 arranged to interact with the guide rail, and with two rear lateral rolling members 4a, 4b, the said rolling members being arranged to be driven by the said drive motor by means of a differential 5.

Description

La présente invention concerne un système pour la réalisation automatique de travaux agricoles tels que la tonte du gazon. The present invention relates to a system for automatically carrying out agricultural work such as mowing lawns.

Certains travaux agricoles, et plus particulièrement les travaux domestiques tels que la tonte du gazon, sont fastidieux et fatiguants à réaliser et doivent en outre être exécutés très régulièrement. Certain agricultural work, and more particularly domestic work such as mowing the lawn, is tedious and tiring to carry out and must moreover be carried out very regularly.

C'est ainsi par exemple qu'unie pelouse exige d'être tondue au moins une fois par semaine. A défaut d'une telle régularité, par exemple en cas d'absence de la personne chargée de l'opération, le gazon prend un aspect abandonné et inesthétique. En outre, 11 opération de tonte qui suit une telle absence est toujours beaucoup plus longue et beaucoup plus pénible qu'une tonte normale effectuée de façon régulière.For example, a lawn needs to be mowed at least once a week. In the absence of such regularity, for example in the absence of the person responsible for the operation, the lawn takes on an abandoned and unsightly appearance. Furthermore, the mowing operation which follows such an absence is always much longer and much more painful than a normal mowing carried out on a regular basis.

En outre, bons nombres de ces travaux agricoles ne sont pas sans danger, notamment lorsqu'ils sont réalisés par des particuliers sans grande expérience. C'est ainsi que la tonte du gazon est responsable d'un trop grand nombre de doigts ou de mains coupés. In addition, many of these agricultural works are not without danger, especially when they are carried out by individuals with little experience. This is how mowing the lawn is responsible for too many cut fingers or hands.

Il existe donc un vif besoin pour un système qui permettrait de réaliser automatiquement, sans intervention humaine, un certain nombre de travaux agricoles tels en particulier que les travaux agricoles domestiques comme la tonte du gazon. There is therefore a great need for a system which would make it possible to carry out automatically, without human intervention, a certain number of agricultural works such as in particular domestic agricultural work such as mowing the lawn.

La présente invention vise à fournir un tel système qui puisse être installé sans difficultés sur un terrain tel qu'une pelouse, et qui soit suffisamment simple et bon marché pour pouvoir être acquis par des particuliers. The present invention aims to provide such a system which can be installed without difficulty on a ground such as a lawn, and which is sufficiently simple and inexpensive to be able to be acquired by individuals.

A cet effet, l'invention a pour objet un système pour la réalisation automatique de travaux agricoles tels que la tonte du gazon, caractérisé par le fait qu'il comprend en combinaison un rail de guidage sensiblement enterré dans le sol, et un véhicule agricole tel qu'unie tondeuse à gazon muni d'un châssis de support pour un moteur d'entrarnement et un outil tel qu'une barre de coupe, ledit châssis de support étant en appui sur le sol par l'intermédiaire d'une béquille avant comportant à son extrémité inférieure un organe de guidage agencé pour coopérer avec le rail de guidage et de deux organes de roulement latéraux arrière, lesdits organes de roulement étant agencés pour être entraSnés par ledit moteur d'entratnement par l'intermédiaire d'un différentiel. To this end, the invention relates to a system for the automatic performance of agricultural work such as mowing the lawn, characterized in that it comprises in combination a guide rail substantially buried in the ground, and an agricultural vehicle such as a lawn mower provided with a support frame for a drive motor and a tool such as a cutter bar, said support frame being supported on the ground by means of a front stand comprising at its lower end a guide member arranged to cooperate with the guide rail and two rear lateral rolling members, said rolling members being arranged to be driven by said drive motor by means of a differential.

Un tel agencement permet au véhicule de suivre le rail enterré. En effet, lorsque ce dernier amorce une courbe, l'organe de guidage provoque un pivotement du véhicule sur ses deux organes de roulement arrière. Un tel pivotement est possible malgré l'avance du véhicule du fait que les organes de roulement sont entraînés par l'intermédiaire d'un différentiel.  Such an arrangement allows the vehicle to follow the buried rail. In fact, when the latter starts a curve, the guide member causes the vehicle to pivot on its two rear rolling members. Such pivoting is possible despite the advance of the vehicle due to the fact that the rolling members are driven by means of a differential.

On notera que par différentiel on entend non seulement le dispositif mécanique généralement connu sous ce nom, mais également d'autres dispositifs permettant d'entratner deux organes de roulement simultanément à des vitesses éventuellement différentes. C'est ainsi que l'on peut prévoir pour l'entratnement des organes de roulement, deux moteurs à courant continu dont les enroulements sont montés en série, chacun des moteurs entraînant l'un des organes de roulement. It will be noted that by differential means not only the mechanical device generally known by this name, but also other devices making it possible to drive two rolling members simultaneously at possibly different speeds. Thus it is possible to provide for the drive of the rolling members, two DC motors whose windings are connected in series, each of the motors driving one of the rolling members.

Dans un mode de réalisation particulier de l'invention, ledit rail de guidage comprend un tube en matériau relativement élastique fendu le long de sa génératrice supérieure et ledit organe de guidage est agencé pour se déplacer à l'intérieur dudit tube en étant poussé par ledit véhicule par l'intermédiaire de la ladite béquille traversant la fente de ce tube. In a particular embodiment of the invention, said guide rail comprises a tube of relatively elastic material split along its upper generatrix and said guide member is arranged to move inside said tube by being pushed by said vehicle by means of said stand passing through the slot of this tube.

Cette béquille peut par exemple être constituée par une lame profilée montée à son extrémité supérieure pivotante par rapport au châssis du véhicule autour d'un axe sensiblement vertical. This stand can for example be constituted by a profiled blade mounted at its upper end pivoting with respect to the chassis of the vehicle around a substantially vertical axis.

On décrira maintenant à titre d'exemple non limitatif un mode de réalisation particulier de l'invention en référence aux dessins schématiques annexés dans lesquels
- la figure 1 est une vue de dessus d'une tondeuse à gazon selon l'invention,
- la figure 2 en est une vue de côté, et
- la figure 3 est une vue en coupe à plus grande échelle selon la ligne III-III de la figure 2.
A particular embodiment of the invention will now be described by way of nonlimiting example with reference to the appended schematic drawings in which
FIG. 1 is a top view of a lawn mower according to the invention,
- Figure 2 is a side view, and
- Figure 3 is a sectional view on a larger scale along the line III-III of Figure 2.

La tondeuse représentée au dessin comporte un châssis triangulaire 1 dont la pointe est dirigée vers l'avant dans le sens d'avance de la tondeuse. Ce châssis supporte une barre de coupe 2 entraînée par un moteur électrique 3 alimenté par une batterie (non représentée). The mower shown in the drawing comprises a triangular frame 1, the point of which is directed forward in the direction of advance of the mower. This chassis supports a cutter bar 2 driven by an electric motor 3 powered by a battery (not shown).

A son extrémité arrière, le châssis 1 supporte deux roues latérales 4a et 4b entralnées également par le moteur 3 par l'intermédiaire d'un différentiel 5. At its rear end, the chassis 1 supports two lateral wheels 4a and 4b also entralnées by the motor 3 via a differential 5.

A son extrémité avant le châssis 1 supporte une béquille 6 constituée par une lame profilée montée pivotante à sa partie supérieure sur le châssis 1 autour d'un axe 7. A son extrémité inférieure, la béquille profilée 6 reçoit un organe de guidage profilé 8. At its front end, the chassis 1 supports a stand 6 constituted by a profiled blade pivotally mounted at its upper part on the chassis 1 around an axis 7. At its lower end, the profiled stand 6 receives a profiled guide member 8.

Comme montré à la figure 3, cet organe de guidage est agencé pour être poussé par la béquille 6 à l'intérieur d'un tube 10 en matière plastique, fendu le long de sa génératrice supérieure 11. La béquille 6 traverse la fente du tube 10. As shown in Figure 3, this guide member is arranged to be pushed by the stand 6 inside a plastic tube 10, split along its upper generatrix 11. The stand 6 crosses the slot of the tube 10.

Le tube 10 est en outre solidaire d'un profilé d'ancrage 12 lui permettant d'être maintenu enterré dans le sol 13.  The tube 10 is also integral with an anchoring profile 12 allowing it to be kept buried in the ground 13.

Lorsque la tondeuse à gazon avance, l'organe de guidage profilé 8 est poussé dans le tube 10 de sorte que, lorsque celui-ci amorce un virage, la tondeuse suit le tube. La roue intérieure au virage tourne alors plus lentement que la roue extérieure ce qui est possible du fait du différentiel 5. When the lawn mower advances, the profiled guide member 8 is pushed into the tube 10 so that, when the latter initiates a turn, the mower follows the tube. The inner wheel at the turn then turns more slowly than the outer wheel which is possible due to the differential 5.

Diverses variantes et modifications peuvent bien entendu être apportées à la description qui précède sans sortir pour autant du cadre ni de l'esprit de l'invention. Various variants and modifications can of course be made to the above description without departing from the scope or the spirit of the invention.

C'est ainsi que les roues peuvent être remplacées par des rouleaux de même largeur que la barre de coupe pour écraser ltherbe fraichement coupée. The wheels can therefore be replaced by rollers of the same width as the cutter bar to crush freshly cut grass.

De même, la tondeuse décrite ci-dessus pourrait comporter une partie arrière articulée sur le châssis et formant remorque. Similarly, the mower described above could include a rear part articulated on the chassis and forming a trailer.

On peut également prévoir un interrupteur pour couper le moteur si l'organe de guidage sort du rail et que la béquille se met en travers.  One can also provide a switch to cut the engine if the guide member comes out of the rail and the stand is crossed.

Claims (3)

REVENSICATIONS 1. Système pour la réalisation automatique de travaux agricoles tels que la tonte du gazon, caractérisé par le fait qu'il comprend en combinaison un rail de guidage (10) sensiblement enterré dans le sol, et un véhicule agricole tel qu'une tondeuse à gazon, muni d'un châssis (1) de support pour un moteur d'entrainement (3) et un outil (2) tel qu'une barre de coupe, ledit châssis de support étant en appui sur le sol par l'intermédiaire d'une béquille avant (6) portant à son extrémité inférieure un organe de guidage (8) agencé pour coopérer avec le rail de guidage, et de deux organes de roulement latéraux arrière (4a,4b), lesdits organes de roulement étant agencés pour entre entraînés par ledit moteur d'entralnement par l'intermédiaire d'un différentiel (5). 1. System for the automatic realization of agricultural work such as mowing the lawn, characterized in that it comprises in combination a guide rail (10) substantially buried in the ground, and an agricultural vehicle such as a lawn mower grass, provided with a support frame (1) for a drive motor (3) and a tool (2) such as a cutter bar, said support frame being supported on the ground by means of 'a front stand (6) carrying at its lower end a guide member (8) arranged to cooperate with the guide rail, and two rear lateral rolling members (4a, 4b), said rolling members being arranged to between driven by said drive motor via a differential (5). 2. Système selon la revendication 1, caractérisé par le fait que ledit rail de guidage comprend un tube en matériau relativement élastique fendu le long de sa génératrice supérieure, et que ledit organe de guidage est agencé pour se déplacer à l'intérieur dudit tube en étant poussé par ledit véhicule par l'intermédiaire de ladite béquille traversant la fente de ce tube. 2. System according to claim 1, characterized in that said guide rail comprises a tube of relatively elastic material split along its upper generatrix, and that said guide member is arranged to move inside said tube in being pushed by said vehicle by means of said stand passing through the slot of this tube. 3. Système selon la revendication 2, caractérisé par le fait que ladite béquille est une lame profilée montée à son extrémité supérieure pivotante par rapport au châssis du véhicule autour d'un axe sensiblement vertical.  3. System according to claim 2, characterized in that said stand is a profiled blade mounted at its upper end pivoting relative to the vehicle chassis around a substantially vertical axis.
FR8700723A 1986-09-26 1987-01-22 SYSTEM FOR AUTOMATICALLY PERFORMING AGRICULTURAL WORK SUCH AS LAWN MOWING Expired - Lifetime FR2609857B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR8700723A FR2609857B1 (en) 1987-01-22 1987-01-22 SYSTEM FOR AUTOMATICALLY PERFORMING AGRICULTURAL WORK SUCH AS LAWN MOWING
EP87480012A EP0266295A1 (en) 1986-09-26 1987-09-24 System for the automatic realization of agricultural labour such as lawn mowing
US07/101,027 US4831813A (en) 1986-09-26 1987-09-25 System for automatic performance of agricultural tasks such as lawn mowing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8700723A FR2609857B1 (en) 1987-01-22 1987-01-22 SYSTEM FOR AUTOMATICALLY PERFORMING AGRICULTURAL WORK SUCH AS LAWN MOWING

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FR2609857A1 true FR2609857A1 (en) 1988-07-29
FR2609857B1 FR2609857B1 (en) 1991-05-24

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3844372A (en) * 1973-12-13 1974-10-29 D Neece Automatically guided tractor
DE2346927A1 (en) * 1973-09-18 1975-04-03 Wolf Geraete Gmbh Steering system for self-propelled lawnmower - uses buried cable carrying alternating current for mower magnetic field sensor
DE2807482A1 (en) * 1978-02-22 1979-08-23 Frielingsdorf Werkzeugmaschine Self-propelled lawn mower - has automatic control with proximity switches which act with tracking indicators formed as metal strips
US4180964A (en) * 1977-04-04 1980-01-01 Pansire Dino G Self-propelled self-guiding lawn mower
BE904169A (en) * 1986-02-05 1986-05-29 Daelemans Denis Track follower to steer self-propelled agricultural vehicle - has pointed blade with skid plate at forward end of rod to follow earlier track or furrow

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2346927A1 (en) * 1973-09-18 1975-04-03 Wolf Geraete Gmbh Steering system for self-propelled lawnmower - uses buried cable carrying alternating current for mower magnetic field sensor
US3844372A (en) * 1973-12-13 1974-10-29 D Neece Automatically guided tractor
US4180964A (en) * 1977-04-04 1980-01-01 Pansire Dino G Self-propelled self-guiding lawn mower
DE2807482A1 (en) * 1978-02-22 1979-08-23 Frielingsdorf Werkzeugmaschine Self-propelled lawn mower - has automatic control with proximity switches which act with tracking indicators formed as metal strips
BE904169A (en) * 1986-02-05 1986-05-29 Daelemans Denis Track follower to steer self-propelled agricultural vehicle - has pointed blade with skid plate at forward end of rod to follow earlier track or furrow

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
VDI ZEITSCHRIFT, vol. 109, no. 7, mars 1967, pages 315-322, V.D.I. Verlag GmbH, D}sseldorf, DE; G. SEGLER: "Landtechnik" *

Also Published As

Publication number Publication date
FR2609857B1 (en) 1991-05-24

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