FR2499394A1 - Portable vacuum collector for cut grass etc. - uses small petrol engine to drive fan at high speed, generating suction to lift grass through conical suction head - Google Patents

Portable vacuum collector for cut grass etc. - uses small petrol engine to drive fan at high speed, generating suction to lift grass through conical suction head Download PDF

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Publication number
FR2499394A1
FR2499394A1 FR8102634A FR8102634A FR2499394A1 FR 2499394 A1 FR2499394 A1 FR 2499394A1 FR 8102634 A FR8102634 A FR 8102634A FR 8102634 A FR8102634 A FR 8102634A FR 2499394 A1 FR2499394 A1 FR 2499394A1
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France
Prior art keywords
devices according
transport
materials
grass
turbine
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FR8102634A
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French (fr)
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Individual
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Individual
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Priority to FR8102634A priority Critical patent/FR2499394A1/en
Publication of FR2499394A1 publication Critical patent/FR2499394A1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H5/00—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
    • E01H5/10—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice by application of heat for melting snow or ice, whether cleared or not, combined or not with clearing or removing mud or water, e.g. burners for melting in situ, heated clearing instruments; Cleaning snow by blowing or suction only
    • E01H5/106—Clearing snow or ice exclusively by means of rays or streams of gas or steam, or by suction with or without melting
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D51/00—Apparatus for gathering together crops spread on the soil, e.g. apples, beets, nuts, potatoes, cotton, cane sugar
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
    • E01H1/0827—Dislodging by suction; Mechanical dislodging-cleaning apparatus with independent or dependent exhaust, e.g. dislodging-sweeping machines with independent suction nozzles ; Mechanical loosening devices working under vacuum
    • E01H1/0836—Apparatus dislodging all of the dirt by suction ; Suction nozzles

Abstract

The vacuum collector is used to draw up cut grass, leaves, or snow which are lying on the ground. A small petrol engine is mounted on a frame suitable for a man to carry. The crankshaft of the engine drives a shaft which runs down a covering tube and is gear coupled to a multi-blade fan lying horizontally across the opening of a conical inlet duct. The high speed rotation of the fan generates suction, lifting the grass, leaves, or snow into the inlet and blowing them along a tube to an outlet connection which may be coupled to a collecting receptacle. The inlet cone is protected with a hard rubber coating to reduce the impact damage to itself and to external objects.

Description

La présente invention concerne le ramassage par aspiration et transport pneumatique de matières,en particulier herbesfeuilles,neige,dispersées sur le sol à l'extérieur des bâtiments. The present invention relates to the collection by suction and pneumatic transport of materials, in particular leafy grasses, snow, dispersed on the ground outside buildings.

Les outils de motoculture offrent au jardinier de nombreux moyens de travailler la terre,de tondre,de tailler,de couper.Certaines tondeuses à gazon permettent de ne pas épandre sur le sol les herbes coupées,mais de les emmagasiner dans un réservoir prévu à cet effet.Certains aspirateurs sont prévus pour être montés sur des motoculteurs.D'autres, portables,pourvus de moteurs thermiques ou électriques,et largement inspirés des aspirateurs domestiques,permettent d'emmagasiner les produits recueillis dans des réservoirs spécifiques. Power tools offer the gardener many ways to work the soil, mow, trim, cut. Some lawn mowers make it possible not to spread the cut grass on the ground, but to store it in a tank provided for this purpose. Certain vacuum cleaners are designed to be mounted on cultivators. Others, portable, equipped with thermal or electric motors, and largely inspired by domestic vacuum cleaners, allow to store the products collected in specific tanks.

L'invention concerne les dispositifs portables permettant de réaliser le ramassage de matériaux,herbes,feuilles,neige,ou autres,épandus sur le sol,et de les stocker dans un réservoir dont le fonctionnement de l'invention ne dépend pas,ou même en tas,sans faire nécessairement appel à une force motrice inclue dans l'invention,mais pouvant au contraire être adaptée sur un autre engin lui même motorisé.L'invention fait appel pour principal moyen de transport des produits recueillis au transport aérodynamique,dit aussi aspiration quand il s'effectue au dehors de l'appareil ou en amont des éléments propres à mettre le fluide de transport en mouvement,transport pneumatique ou transport aérodynamique en aval.L'invention est caractérisée par le fait que,pour rendre le fonctionnement indépendant du système de récupération des matériaux aspirés,les moyens propres à assurer la mise en mouvement du fluide de transport,turbine,propulseur,éjecteur,etc ..,sont situés sur le passage des fluides chargés des matériaux aspirés,entre leur aspiration et leur désengagement des fluides de transport
Selon une variante préférée,lc moyen de mise en mouvement du fluide est une turbine, qui peut être actionnée par un moteur indépendant 'mais qui peut surtout être actionnée par un outil classique de motoculture,comme une débroussailleuse.Dans cette variante transport des matériaux est réalisé dans des tubes rigides ou souples,éventueflement construits de matériaux transparents ou translucides.L'adaption du diamètre de la turbine à celui du tube de transport peut être réalisée par un cône ou par une volute.Les zones particulièrement sensibles à l'érosion,à l'usure,aux impacts,ou sensibles à l'accumulation des matériaux transportés,comme la turbine,le cône ou la volute,et les coudes,peuvent être protégées de de matériaux durs,comme les alliages au cobalt ou les surfaces obtenues par traitement thermique ou chimiquepe matériaux permettant d'absorber les chocs,comme les matériaux élastiques genre caoutchouc,de matières propres à diminuer le coefficient de frottement ou la mouillabilité de la surface,comme certains produits macromoléculaires à base de fluorocarbones,silicones,polyéthylène.Dans la variante destinée à être utilisée comme
accessoire de débroussailleuse,on pourra,par exemple,prévoir un renvoi d'angle incorporé au système.Mais on pourra aussi prévoir un système permettant de réutiliser le renvoi d'angle de la débroussailleuse.Dans les deux cas,on peut prévoir,pour protéger la partie délicate qu'est le renvoi d'angle,un second cône intérieur au premier.The invention relates to portable devices making it possible to collect materials, grasses, leaves, snow, or the like, spread on the ground, and to store them in a tank on which the operation of the invention does not depend, or even on them. heap, without necessarily using a motive force included in the invention, but which can on the contrary be adapted on another machine itself motorized. The invention uses the main means of transport of the collected products for aerodynamic transport, also called aspiration when it takes place outside the device or upstream of the elements capable of setting the transport fluid in motion, pneumatic transport or aerodynamic transport downstream. The invention is characterized in that, to make the operation independent of the recovery system for aspirated materials, the means to ensure the setting in motion of the transport fluid, turbine, propellant, ejector, etc., are located on the passage of charged fluids sucked materials, between their aspiration and their disengagement from transport fluids
According to a preferred variant, the means for setting the fluid in motion is a turbine, which can be actuated by an independent motor, but which can above all be actuated by a conventional cultivating tool, such as a brushcutter. In this variant transport of materials is made of rigid or flexible tubes, possibly made of transparent or translucent materials. The diameter of the turbine can be adapted to that of the transport tube. It can be made by a cone or a volute. Areas particularly sensitive to erosion, wear, impact, or sensitive to the accumulation of transported materials, such as the turbine, cone or volute, and elbows, can be protected from hard materials, such as cobalt alloys or surfaces obtained by heat or chemical treatment of materials used to absorb shocks, such as rubber-like elastic materials, of materials suitable for reducing the coefficient of friction or the wettability of the surface, like certain macromolecular products based on fluorocarbons, silicones, polyethylene. In the variant intended to be used as
brushcutter accessory, we can, for example, provide an angle gear incorporated into the system. But we can also provide a system to reuse the angle gear of the brush cutter. In both cases, we can provide, to protect the delicate part that is the bevel gear, a second cone inside the first.

Dans la variante du système utilisant une turbine,on peut en particulier utiliser une turbine à effet principalement axial.Cette turbine peut être réalisée à faible coût à partir de tôles circulaires dans lesquelles les aubes sont formées par découpage et repoussageJ > our chaque aube,une première découpe,essentiellement radiale est effectuée à partir de la périphérie de la plaque.A partir de l'extrémité de cette découpe,une seconde découpe, essentiellement tangentielle,est réalssée.L'aube est alors terminée par torsion suivant des axes essentiellement radiaux.Si plusieurs tôles sont utilisées,elles peuvent être empilées avec un décalage angulaire,pour augmenter le rapport longueur/écartement des aubes,et ainsi assurer une plus grande pression de refoulement à faible débit.Les tôles peuvent en outre recevoir,avant ou après formage,un traitement de surface propre à leur donner un caractère auto-affûtant. In the variant of the system using a turbine, it is possible in particular to use a turbine with a mainly axial effect. This turbine can be produced at low cost from circular sheets in which the blades are formed by cutting and pushing back. first, essentially radial cut is made from the periphery of the plate. From the end of this cut, a second cut, essentially tangential, is re-formed. The blade is then finished by twisting along essentially radial axes. If several sheets are used, they can be stacked with an angular offset, to increase the length / spacing ratio of the blades, and thus ensure greater delivery pressure at low flow rates. The sheets can also receive, before or after forming, a specific surface treatment to give them a self-sharpening character.

A l'extrémité des tubes de transport on peut prévoir un système propre à faciliter le désengagement des matériaux transportés du fluide de transport.Ce système peut être constitue d'une expansion du diamètre du tube,propre à diminuer la vitesse du fluide.Pour en augmenter l'efflcacité,le système peut admettre une aspiration d'air secondaire,propre elle aussi à diminuer la vitesse du fluide.Cette injection peut en sens inverse servir à l'évacuation de l'air de transport lors de l'utilisation de systèmes de stockage où une sortie d'air n'est pas prévue. A system can be provided at the end of the transport tubes to facilitate the disengagement of the materials transported from the transport fluid. This system may consist of an expansion of the diameter of the tube, capable of reducing the speed of the fluid. increase the efflciency, the system can admit a secondary air aspiration, also suitable for decreasing the speed of the fluid. This injection can in reverse serve to evacuate the transport air when using systems storage where an air outlet is not provided.

Le dessin 1 annexé est une vue d'ensemble du dispositif,dans une de ses réalisations propre à être adaptée sur une débroussailleuse du marché. The attached drawing 1 is an overall view of the device, in one of its embodiments suitable for being adapted on a brushcutter on the market.

Le dessin 2 est une coupe du dispositif présenté sur la figure 1 ,dans sa partie de tête. Drawing 2 is a section of the device shown in Figure 1, in its head portion.

Le dessin 3 est une coupe du même dispositif,dans sa partie de désengagement
Le dessin 4 indique une réalisation possible de la turbine utilisée dans le dispositif de la figure 1.Drawing 3 is a section of the same device, in its disengagement part
Drawing 4 indicates a possible embodiment of the turbine used in the device of FIG. 1.

Tel qu'il est représenté,le dispositif comporte un cône 1 protégé par une couche de caoutchouc 2,lié aux parties fixes de la débroussailleuse 10 par des entrecroises 3 et un collier 4,lui même lié au cône par une entrecroise 5.Une turbine axiale 6 prend la place généralement réservée dans la débroussailleuse à la lame.Un tube 7 permet l'évacuation des produits aspirés.Ce tube est fixé sur le cône par un collier 8.A l'autre extrémité,le tube débouche dans le système de désengagement 9 auquel il est fixé par un collier il Le tube de petit diamètre 12 est Çixê au tube externe 13 par des entrecroises 14.L'espace annulaire 15 limité par ces deux tubes constitue l'admission d'air secondaire pour l'utilisation du système à la constitution de tassa sortie d'air de transport dans l'utilisation du système avec un Sac de stockage trop imperméable.Les aubes 16 de la turbine 6 peuvent être recouvertes d'un dépôt dur 17 sur le métal de base 18.  As shown, the device comprises a cone 1 protected by a layer of rubber 2, linked to the fixed parts of the brush cutter 10 by cross-pieces 3 and a collar 4, itself linked to the cone by a cross-piece 5. A turbine axial 6 takes the place generally reserved in the brushcutter for the blade. A tube 7 allows the evacuation of the sucked products. This tube is fixed on the cone by a collar 8. At the other end, the tube opens into the system of disengagement 9 to which it is fixed by a collar il The small diameter tube 12 is fixed to the external tube 13 by crosspieces 14. The annular space 15 limited by these two tubes constitutes the secondary air intake for the use of the system with the constitution of tassa transport air outlet in the use of the system with an excessively impermeable storage bag. The blades 16 of the turbine 6 can be covered with a hard deposit 17 on the base metal 18.

Claims (10)

REVENDICATIONS 1- Aspirateurs portables propres à ramasser les matériaux épendus sur sol naturel, par aspiration et transport pneumatique, comprenant une section pour la mise en mouve -ment du fluide de transport, un élément adaptant l'écoulement de la section précédente au tube de transport, un tube assurant le transport des matériaux aspirés, et une section de désengagement des matériaux du fluide de transport, caractérisés en ce que leurs moyens de mise en mouvement du fluide soient sur le trajet de l'air chargé ,et en ce que leurs fonction-  1- Portable vacuum cleaners suitable for picking up materials spread over natural soil, by suction and pneumatic transport, comprising a section for setting in motion the transport fluid, an element adapting the flow of the previous section to the transport tube, a tube ensuring the transport of the aspirated materials, and a section for disengaging the materials from the transport fluid, characterized in that their means for setting in motion the fluid are in the path of the charged air, and in that their functions - -nements soient indépendants du choix d'un moyen particulier de stockage de ces matériaux. -nements are independent of the choice of a particular means of storage of these materials. 2- Dispositifs suivant 1 dans lesquels le moyen de mise en mouvement de l'air est un compresseur rotatif, désigné dans la suite par le nom turbine. 2- Devices according to 1 in which the means for setting in motion the air is a rotary compressor, hereinafter designated by the name turbine. 3- Dispositifs suivant 1 dans lesquels le moyen de désengagement des matières aspirées est constitué par une augmentation du diamètre du tube de transport avec ou sans admission d'air secondaire. 3- Devices according to 1 in which the means for disengaging the sucked material consists of an increase in the diameter of the transport tube with or without the admission of secondary air. 4- Dispositifs suivant 1 propres à être adaptés comme outil sur un engin de motoculture. 4- Devices according to 1 suitable for being adapted as a tool on a cultivated vehicle. 5- Dispositifs suivant 1 et 4 dans lesquels l'engin de motoculture est du type débrous sailleuse.  5- Devices according to 1 and 4 in which the mechanical cultivating machine is of the protruding spring type. 6- Dispositifs suivant 1 et 2 dans lesquels la turbine est constituée d'une ou pluisieurs plaques dans lesquelles on obtient des aubes par découpe et repoussage. 6- Devices according to 1 and 2 in which the turbine consists of one or more plates in which blades are obtained by cutting and pushing back. 7- Dispositifs suivant 1 et 2 dans lesquels la turbine est rendue auto-affuteuse par constitution d'une couche dure en surface des aubes. 7- Devices according to 1 and 2 in which the turbine is made self-sharpening by constitution of a hard layer on the surface of the blades. 8- Dispositifs suivant 1 dans lesquels les parties soumises à érosion sont protégées par une couche dure. 8- Devices according to 1 in which the parts subjected to erosion are protected by a hard layer. 9- Dispositifs suivant I dans lesquels les parties soumises à impact sont protégées par une couche élastique. 9- Devices according to I in which the parts subjected to impact are protected by an elastic layer. 10- Dispositifs suivant 1 dans lesquels les parties sensibles au bouchage sont protégées par des couches à faible coefficient de friction ou hydrofuges.  10- Devices according to 1 in which the parts sensitive to blockage are protected by layers with a low coefficient of friction or water-repellent.
FR8102634A 1981-02-11 1981-02-11 Portable vacuum collector for cut grass etc. - uses small petrol engine to drive fan at high speed, generating suction to lift grass through conical suction head Withdrawn FR2499394A1 (en)

Priority Applications (1)

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FR8102634A FR2499394A1 (en) 1981-02-11 1981-02-11 Portable vacuum collector for cut grass etc. - uses small petrol engine to drive fan at high speed, generating suction to lift grass through conical suction head

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Application Number Priority Date Filing Date Title
FR8102634A FR2499394A1 (en) 1981-02-11 1981-02-11 Portable vacuum collector for cut grass etc. - uses small petrol engine to drive fan at high speed, generating suction to lift grass through conical suction head

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534291A1 (en) * 1982-10-08 1984-04-13 France Groupe Services UNIT FOR COLLECTING EXCREMENTS OF ANIMALS ON THE PUBLIC ROAD AND VEHICLES EQUIPPED WITH THIS UNIT
WO1995008255A1 (en) * 1993-09-21 1995-03-30 Leopold Posch Grass mower
US5894630A (en) * 1996-03-15 1999-04-20 International Retail Direct Promotions, Inc. Air conducting convertor for string trimmer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534291A1 (en) * 1982-10-08 1984-04-13 France Groupe Services UNIT FOR COLLECTING EXCREMENTS OF ANIMALS ON THE PUBLIC ROAD AND VEHICLES EQUIPPED WITH THIS UNIT
EP0107602A1 (en) * 1982-10-08 1984-05-02 Groupe Services France S.A. Device for collecting animal droppings from public thoroughfares, and vehicles equipped with such a device
WO1995008255A1 (en) * 1993-09-21 1995-03-30 Leopold Posch Grass mower
US5894630A (en) * 1996-03-15 1999-04-20 International Retail Direct Promotions, Inc. Air conducting convertor for string trimmer

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