WO2005035878A1 - Suction nozzle - Google Patents

Suction nozzle Download PDF

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Publication number
WO2005035878A1
WO2005035878A1 PCT/BE2003/000175 BE0300175W WO2005035878A1 WO 2005035878 A1 WO2005035878 A1 WO 2005035878A1 BE 0300175 W BE0300175 W BE 0300175W WO 2005035878 A1 WO2005035878 A1 WO 2005035878A1
Authority
WO
WIPO (PCT)
Prior art keywords
suction nozzle
shoe
nozzle
suction
free end
Prior art date
Application number
PCT/BE2003/000175
Other languages
French (fr)
Inventor
Christian Lange
Original Assignee
Lange Christian S.A.
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 Lange Christian S.A. filed Critical Lange Christian S.A.
Priority to AU2003273643A priority Critical patent/AU2003273643A1/en
Priority to PCT/BE2003/000175 priority patent/WO2005035878A1/en
Priority to EP03757557A priority patent/EP1682727A1/en
Publication of WO2005035878A1 publication Critical patent/WO2005035878A1/en

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Classifications

    • 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
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • 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

Definitions

  • the present invention relates to an essentially rigid suction nozzle intended to be attached to a suction device via, in particular, a flexible tube, said suction nozzle being cut at a bevel at its free end.
  • This type of vacuum nozzle is intended to be connected to a vacuum cleaner, in particular to a street vacuum cleaner.
  • Commercially available devices include a suction nozzle of sufficient diameter to be able to suck up all the waste dispersed on the sidewalks, for example, cigarette butts, cans even after they have been crushed and therefore deformed, glass or plastic of different sizes, dog excrement, plastic, cardboard or paper packaging, dead leaves as well as all kinds of waste likely to end up in areas frequented by pedestrians.
  • the suction nozzles therefore consist of a flexible part which facilitates their handling and of a rigid part which the user holds in his hand using a handle.
  • the suction nozzles are generally made of plastic, for example PVC, as described in the document EP 1031 311. Their cost is low, but these suction nozzles have the disadvantage of wearing out quickly because of the friction of their ends. On the ground. To solve this wear problem, it is difficult to find a resistant material without considerably increasing the cost of said suction nozzle and especially its weight. Indeed, the materials having a resistance to wear superior to that of plastics are also, in general, of a heavy weight incompatible with the use of the suction nozzle since the latter must be carried with one hand by the user.
  • the plastic suction nozzles are already too heavy for intensive use of the street waste vacuum cleaner.
  • this type of machine is intended for such use.
  • no solution has been found to solve this problem of weight of the suction nozzles. It was therefore necessary to improve the wear resistance of the suction nozzle.
  • the present invention provides a suction nozzle provided with a shoe which is disposed on at least part of its free end and which is composed of a material whose minimum hardness index on the Brinell scale is of 100.
  • the suction nozzle has a high resistance to wear thanks to its shoe which is adaptable to the suction nozzles already mounted on the commercially available devices.
  • the suction nozzle does not have to be made entirely of hard material as described above, as this would make it too heavy to handle. Solving the problem of wear on the suction nozzle causes an unacceptable increase in weight for said suction nozzle.
  • the solution provided by the present invention therefore avoids this drawback and it provides, in a preferred embodiment, that the suction nozzle is made of a material chosen from carbon,
  • Fig. 1 illustrates a view of the suction nozzle according to the present invention.
  • Fig. 2 illustrates a perspective view of the shoe intended to be fixed to the suction nozzle of the present invention.
  • Fig. 3 illustrates an embodiment of a handle intended to be fixed to the suction nozzle of the present invention.
  • FIG. 4 illustrates how the nozzle of the invention is used on a street vacuum cleaner.
  • the suction nozzle 1 as shown in FIG. 1 is a preferred embodiment. This is intended to be connected, in particular, to a vacuum cleaner 9 for urban waste. This type of device is mounted on wheels, possibly self-propelled and controlled with one hand by the user who holds the suction nozzle 1 in the other hand.
  • This suction nozzle 1 has a length of at least 40 cm up to 3 m, but in a preferred embodiment, this length is 1.30 m so as to allow the user to vacuum the waste on the sidewalks and on the roadway without having to lean forward.
  • the handle 3 which allows the gripping of the suction nozzle 1, is removably fixed thereon to be able to adapt its position according to the size of the user.
  • the handle 3 is preferably positioned so as to allow the user to hold the suction nozzle 1, preferably in one hand with his arm slightly bent while he is vacuuming the waste on the surface on which it moves with the vacuum cleaner 9 to which the suction nozzle 1 of the invention is connected. In this way, when the user wishes to suck up waste lying below the surface on which he is, he does not need to lean forward to do this.
  • the suction nozzle 1 has a sufficient length to reach a waste which is, for example, on the roadway, below the sidewalk on which the user moves.
  • the preferred diameters of the suction nozzle 1 of the invention are 125 mm or 135 mm to be able to suck waste from the size, for example, of a crushed can or a bottle without these being trapped in the suction nozzle 1.
  • diameters ranging from 30 mm to 300 mm can be envisaged for the suction of waste from small size and larger size.
  • the suction nozzles 1 available on the market are generally made of PVC, this material proving to be heavy in use, which is tiring for the user who holds it with one hand for several hours at a stretch.
  • the suction nozzle 1 of the invention is therefore preferably made of carbon-Kevlar, which significantly reduces its weight, thereby obtaining great comfort in use.
  • a suction nozzle 1 made of PVC 125 mm in diameter and 1.30 m long has a weight greater than 2 kg when it is provided with a handle 3.
  • the weight of a conventional suction nozzle 1 made of PVC can be compared which is usually provided with a steel handle 3 and which has a diameter of 125 mm for a length of 1.30 m with the weight of the suction nozzle 1 of the invention in carbon provided with a shoe 2 in titanium and a handle 3 also made of titanium, this suction nozzle 1 having the same dimensions as the suction nozzle 1 in PVC.
  • the suction nozzle 1 of the invention has a weight which is at least 40% less than that of a suction nozzle 1 having the same dimensions, but made of PVC.
  • PVC is fragile and it is brittle when it is subjected to friction. Indeed, after a few weeks of use, the part of the suction nozzle 1, which is in contact with the ground, wears and breaks very quickly.
  • Other materials such as composite materials using woven materials or fibers can be used to obtain a lighter suction nozzle 1, but these materials fray considerably in use and are more expensive.
  • Composite materials which include, in particular, a material selected from carbon fibers, resin fibers aramid, epoxy resins and mixtures thereof, and titanium alloys, titanium, aluminum and thermosetting plastics are materials used to make the vacuum nozzle 1.
  • the suction nozzle 1 of the invention is therefore provided with a shoe 2 disposed at its free end which comes into contact with the ground .
  • This shoe 2 is in the form of a cylinder, preferably beveled. The latter follows the end of the suction nozzle 1 to which it is fixed, for example, by welding. Thus, it is the shoe 2 which scrapes the ground and no longer the vacuum nozzle 1 itself.
  • shoe 2 is made of a material which is very resistant to wear, such as titanium or one of its alloys. Its Brinell hardness index is 120 in a preferred embodiment, but it can also be lower, by at least 100.
  • the suction nozzle 1 of the invention combines lightness and robustness without its manufacturing cost becoming exorbitant and above all makes it possible to obtain a practically wear-free element, which reduces its operating cost.
  • the shoe 2, shown in FIG. 2, is a preferred embodiment. This consists of three parts 6, 7, 8 which are arranged as follows: The first part 6 is cylindrical and its diameter corresponds to that of the suction nozzle 1, this first part 6 is cut at a bevel at its end .
  • the second part 7 disposed under the first part 6 has a shape matching that of the first part 6 and its thickness is greater than that of the first part 6. In fact, this second part 7 comes into contact with the ground during the use of the suction nozzle 1 and its wear is low if its thickness is at least 1 mm.
  • the third part 8 of the shoe 2 consists of a piece in the form of a sausage (8 mm in diameter, for example) which is arranged at the base and at the rear of the shoe. 2.
  • This shoe 2 preferably has a thickness of 2 or 3 mm, because a lower thickness would make this part sharp.
  • the shoe 2 preferably comprises at least one cutout 4 allowing the passage of air, which prevents the suction nozzle 1 from being pressed against the ground during suction.
  • This shoe 2 also comprises, in a preferred embodiment, a heel 5 made of elastic material (of the rubber type). This heel 5 absorbs vibrations and shocks due to the contact of the suction nozzle 1 with the ground and it also reduces the noise caused by the friction of the shoe 2 with the ground.
  • the suction nozzle 1 of the invention can be decorated with accessories for specific uses. Indeed, it is possible to attach a squeegee, a device for spreading liquid or gas in order, for example, to solidify canine excrement before aspirating it, a brush, one or more rollers, a squeegee, a magnet to allow the recovery of fairly heavy metal parts, a scraper, at least one spray nozzle, a rake, a claw for lifting weeds which are then immediately sucked by the suction nozzle 1, and all gardening accessories usable in combination with a vacuum cleaner 9.
  • a squeegee a device for spreading liquid or gas in order, for example, to solidify canine excrement before aspirating it
  • a brush one or more rollers
  • a squeegee a magnet to allow the recovery of fairly heavy metal parts
  • a scraper at least one spray nozzle, a rake, a claw for lifting weeds which are then immediately sucked by the su
  • a diameter reduction of the suction nozzle 1 can also be fixed to said suction nozzle 1 to facilitate the suction of small waste in narrow spaces inaccessible to a suction nozzle 1 of large diameter, or any other accessory for special cleaning.
  • the suction nozzle 1 can be provided with a strap allowing the user to hang it on his shoulder.
  • the shoe 2 fixed to the end of the suction nozzle 1 can be formed from a single molded part which is welded to the suction nozzle 1 or fixed by removable fixing means.
  • Fig. 3 illustrates an example of embodiment of handle 3 intended to be removably disposed on the suction nozzle 1 of the invention. This handle 3 is made of a resistant and light material such as, for example, titanium and its shape is chosen so that its grip is comfortable.
  • the suction nozzle 1 of the present invention is designed to adapt in particular to urban waste suction devices and it can be separable from its shoe 2. Thus, if the suction nozzle 1 has been damaged, it can be replaced without necessarily replacing shoe 2, the cost of which is higher. However, this suction nozzle 1 can have a diameter corresponding to that of a household vacuum cleaner, it can also be used in this context so that users of this type of device also benefit from the advantages of the suction nozzle 1 of the present invention, in particular its lightness, its robustness and its comfort of use.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)

Abstract

The invention relates to a suction nozzle (1) for attaching to a suction appliance (9) by means of a flexible tube, said suction nozzle (1) being bevelled at the end thereof and provided with a shoe (2).

Description

Buse aspiratrice Vacuum nozzle
La présente invention se rapporte à une buse aspiratrice essentiellement rigide prévue pour être rattachée à un appareil d'aspiration par l'intermédiaire, en particulier, d'un tube flexible, ladite buse aspiratrice étant coupée en biseau à son extrémité libre. Ce type de buse aspiratrice est prévu pour être raccordé à un aspirateur, en particulier, à un aspirateur de rue. Les appareils disponibles commercialement comprennent une buse aspiratrice d'un diamètre suffisant pour pouvoir aspirer tous les déchets dispersés sur les trottoirs, par exemple, des mégots, des canettes même après qu'elles ont été écrasées et donc déformées, des bouteilles en verre ou en plastique de différentes tailles, des déjections canines, des emballages en plastique, en carton ou en papier, des feuilles mortes ainsi que toutes les sortes de déchets susceptibles de se retrouver dans des zones fréquentées par des piétons. Les buses aspiratrices sont donc constituées d'une partie flexible qui facilite leur manipulation et d'une partie rigide que l'utilisateur tient en main à l'aide d'une poignée. Les buses aspiratrices sont généralement fabriquées en matière plastique, par exemple du PVC, comme il est décrit dans le document EP 1031 311. Leur coût est peu important mais ces buses aspiratrices ont le désavantage de s'user rapidement à cause du frottement de leur extrémité sur le sol. Pour résoudre ce problème d'usure, il est difficile de trouver une matière résistante sans accroître considérablement le coût de ladite buse aspiratrice et surtout son poids. En effet, les matières présentant une résistance à l'usure supérieure à celle des matières plastiques sont également, de manière générale, d'un poids élevé incompatible avec l'utilisation de la buse aspiratrice puisque cette dernière doit être portée d'une seule main par l'utilisateur. Il faut également noter que les buses aspiratrices en matière plastique sont déjà d'un poids qui est trop élevé pour une utilisation intensive de l'aspirateur de déchets de rue. Or, ce type de machine est prévu pour un tel usage. Cependant, depuis plus de 15 ans que ces machines existent, aucune solution n'a pu être trouvée pour résoudre ce problème de poids des buses aspiratrices. Il était donc nécessaire d'améliorer la résistance à l'usure de la buse aspiratrice. A cette fin, la présente invention propose une buse aspiratrice munie d'un sabot qui est disposé sur au moins une partie de son extrémité libre et qui est composé d'une matière dont l'indice de dureté minimum sur l'échelle de Brinell est de 100. Ainsi, la buse aspiratrice présente une grande résistance à l'usure grâce à son sabot qui est adaptable aux buses aspiratrices déjà montées sur les appareils disponibles commercialement. Il n'est pas nécessaire que la buse aspiratrice soit entièrement composée d'une matière dure comme décrit ci-dessus, car cela la rendrait trop lourde à manipuler. Résoudre le problème d'usure de la buse aspiratrice provoque une augmentation de poids inacceptable pour ladite buse aspiratrice. La solution apportée par la présente invention évite donc cet inconvénient et elle prévoit, dans un mode de réalisation préféré, que la buse aspiratrice soit réalisée dans une matière choisie parmi le carbone, leThe present invention relates to an essentially rigid suction nozzle intended to be attached to a suction device via, in particular, a flexible tube, said suction nozzle being cut at a bevel at its free end. This type of vacuum nozzle is intended to be connected to a vacuum cleaner, in particular to a street vacuum cleaner. Commercially available devices include a suction nozzle of sufficient diameter to be able to suck up all the waste dispersed on the sidewalks, for example, cigarette butts, cans even after they have been crushed and therefore deformed, glass or plastic of different sizes, dog excrement, plastic, cardboard or paper packaging, dead leaves as well as all kinds of waste likely to end up in areas frequented by pedestrians. The suction nozzles therefore consist of a flexible part which facilitates their handling and of a rigid part which the user holds in his hand using a handle. The suction nozzles are generally made of plastic, for example PVC, as described in the document EP 1031 311. Their cost is low, but these suction nozzles have the disadvantage of wearing out quickly because of the friction of their ends. On the ground. To solve this wear problem, it is difficult to find a resistant material without considerably increasing the cost of said suction nozzle and especially its weight. Indeed, the materials having a resistance to wear superior to that of plastics are also, in general, of a heavy weight incompatible with the use of the suction nozzle since the latter must be carried with one hand by the user. It should also be noted that the plastic suction nozzles are already too heavy for intensive use of the street waste vacuum cleaner. However, this type of machine is intended for such use. However, for more than 15 years that these machines have existed, no solution has been found to solve this problem of weight of the suction nozzles. It was therefore necessary to improve the wear resistance of the suction nozzle. To this end, the present invention provides a suction nozzle provided with a shoe which is disposed on at least part of its free end and which is composed of a material whose minimum hardness index on the Brinell scale is of 100. Thus, the suction nozzle has a high resistance to wear thanks to its shoe which is adaptable to the suction nozzles already mounted on the commercially available devices. The suction nozzle does not have to be made entirely of hard material as described above, as this would make it too heavy to handle. Solving the problem of wear on the suction nozzle causes an unacceptable increase in weight for said suction nozzle. The solution provided by the present invention therefore avoids this drawback and it provides, in a preferred embodiment, that the suction nozzle is made of a material chosen from carbon,
Kevlar, le carbone-Kevlar, le carbone-époxy et munie d'un sabot composé d'une matière dont l'indice de dureté Brinell est d'au moins 100. Ainsi, la buse aspiratrice est légère et maniable tout en ayant une résistance à l'usure très importante. D'autres détails et particularités de l'invention ressortiront des revendications dépendantes et de la description donnée ci-après, à titre non limitatif, avec référence aux dessins annexés. La Fig. 1 illustre une vue de la buse aspiratrice selon la présente invention. La Fig. 2 illustre une vue en perspective cavalière du sabot prévu pour être fixé sur la buse aspiratrice de la présente invention. La Fig. 3 illustre un mode de réalisation d'une poignée prévue pour être fixée sur la buse aspiratrice de la présente invention. La Fig. 4 illustre comment est utilisée la buse de l'invention sur un aspirateur de rue. La buse aspiratrice 1 telle que représentée sur la Fig. 1 est un mode de réalisation préféré. Celle-ci est prévue pour être raccordée, en particulier, à un aspirateur 9 de déchets urbains. Ce type d'appareil est monté sur roues, éventuellement autopropulsé et commandé d'une main par l'utilisateur qui tient dans l'autre main la buse aspiratrice 1. Cette buse aspiratrice 1 a une longueur d'au moins 40 cm jusqu'à 3 m, mais dans un mode de réalisation préféré, cette longueur est de 1 ,30 m de façon à permettre à l'utilisateur d'aspirer les déchets sur les trottoirs et sur la chaussée sans devoir se pencher en avant. De plus, la poignée 3, qui permet la préhension de la buse aspiratrice 1 , est fixée de façon amovible sur celle-ci pour pouvoir adapter sa position en fonction de la taille de l'utilisateur. En effet, la poignée 3 est positionnée, de préférence, de façon à permettre à l'utilisateur de tenir la buse aspiratrice 1 , de préférence, dans une seule main en ayant son bras légèrement plié pendant qu'il procède à l'aspiration des déchets sur la surface sur laquelle il se déplace avec l'aspirateur 9 auquel est reliée la buse aspiratrice 1 de l'invention. De cette façon, lorsque l'utilisateur désire aspirer des déchets se trouvant en deçà de la surface sur laquelle il se trouve, il n'a pas besoin de se pencher en avant pour ce faire. En effet, il lui suffit de tendre son bras puisque la buse aspiratrice 1 a une longueur suffisante pour atteindre un déchet qui se trouve, par exemple, sur la chaussée, en dessous du trottoir sur lequel se déplace l'utilisateur. Les diamètres préférentiels de la buse aspiratrice 1 de l'invention sont de 125 mm ou de 135 mm pour pouvoir aspirer des déchets de la taille, par exemple, d'une canette écrasée ou d'une bouteille sans que ceux-ci ne restent coincés dans la buse aspiratrice 1. Cependant, des diamètres allant de 30 mm à 300 mm peuvent être envisagés pour l'aspiration de déchets de petite taille et de taille plus importante. Les buses aspiratrices 1 disponibles sur le marché sont généralement en PVC, ce matériau s'avérant lourd à l'usage, ce qui est fatigant pour l'utilisateur qui la tient d'une main pendant plusieurs heures d'affilée. La buse aspiratrice 1 de l'invention est donc, de préférence, réalisée en carbone-KevIar, ce qui diminue sensiblement son poids permettant ainsi d'obtenir un grand confort d'utilisation. Une buse aspiratrice 1 en PVC de 125 mm de diamètre et de 1 ,30 m de longueur a un poids supérieur à 2 kg quand elle est pourvue d'une poignée 3. On peut comparer le poids d'une buse aspiratrice 1 conventionnelle en PVC qui est habituellement munie d'une poignée 3 en acier et qui a un diamètre de 125 mm pour une longueur de 1 ,30 m avec le poids de la buse aspiratrice 1 de l'invention en carbone munie d'un sabot 2 en titane et d'une poignée 3 également en titane, cette buse aspiratrice 1 ayant les mêmes dimensions que la buse aspiratrice 1 en PVC. La buse aspiratrice 1 de l'invention a un poids qui est d'au moins 40% inférieur à celui d'une buse aspiratrice 1 ayant les mêmes dimensions, mais fabriquée en PVC. De plus, le PVC est fragile et il est cassant quand il est soumis à des frottements. En effet, après quelques semaines d'utilisation, la partie de la buse aspiratrice 1 , qui est en contact avec le sol, s'use et casse très rapidement. D'autres matériaux tels que des matériaux composites utilisant des matières tissées ou des fibres peuvent être utilisés pour obtenir une buse aspiratrice 1 plus légère, mais ces matériaux s'effilochent considérablement à l'usage et sont de plus coûteux. Des matériaux composites qui comprennent, en particulier, une matière choisie parmi des fibres de carbone, des fibres de résine aramide, des résines époxy et leurs mélanges, et des alliages de titane, du titane, de l'aluminium et des plastiques thermodurcissables sont des matières utilisées pour fabriquer la buse aspiratrice 1. D'autres matières telles que le carbone Kevlar, le Kevlar et toute matière ayant pour particularité d'être légère et rigide sont préférées pour la fabrication de ladite buse aspiratrice 1. La buse aspiratrice 1 de l'invention est donc munie d'un sabot 2 disposé à son extrémité libre qui entre en contact avec le sol. Ce sabot 2 est en forme de cylindre, de préférence biseauté. Ce dernier épouse l'extrémité de la buse aspiratrice 1 à laquelle il est fixé, par exemple, par soudure. Ainsi, c'est le sabot 2 qui racle le sol et non plus la buse aspiratrice 1 elle-même. Or, le sabot 2 est composé d'une matière très résistante à l'usure comme du titane ou un de ses alliages. Son indice de dureté Brinell est de 120 dans un mode de réalisation préféré, mais il peut également être inférieur, d'au moins 100. Ainsi, la buse aspiratrice 1 de l'invention allie légèreté et robustesse sans que son coût de fabrication ne devienne exorbitant et permet surtout d'obtenir un élément pratiquement inusable, ce qui diminue son coût de fonctionnement. Le sabot 2, représenté sur la Fig. 2, est un mode de réalisation préféré. Celui-ci est constitué de trois parties 6, 7, 8 qui sont disposées de la manière suivante : La première partie 6 est cylindrique et son diamètre correspond à celui de la buse aspiratrice 1 , cette première partie 6 est coupée en biseau à son extrémité. La deuxième partie 7 disposée sous la première partie 6 a une forme épousant celle de la première partie 6 et son épaisseur est supérieure à celle de la première partie 6. En effet, cette deuxième partie 7 entre en contact avec le sol lors de l'utilisation de la buse aspiratrice 1 et son usure est faible si son épaisseur est d'au moins 1 mm. La troisième partie 8 du sabot 2 est constituée d'une pièce en forme de boudin (8 mm de diamètre, par exemple) qui est disposé à la base et à l'arrière du sabot 2. Ce sabot 2 a préférentiellement une épaisseur de 2 ou 3 mm, car une épaisseur inférieure rendrait cette pièce coupante. Le sabot 2 comporte préférentiellement au moins une découpe 4 permettant le passage d'air, ce qui évite à la buse aspiratrice 1 d'être plaquée au sol lors de l'aspiration. Ce sabot 2 comprend également, dans un mode préférentiel de réalisation un talon 5 en matériau élastique (du type caoutchouc). Ce talon 5 permet d'amortir les vibrations et les chocs dus au contact de la buse aspiratrice 1 avec le sol et il réduit aussi le bruit provoqué par le frottement du sabot 2 avec le sol. Ce talon 5 est fixé de façon à pouvoir être remplacé aisément et aussi souvent que son degré d'usure le nécessite. La buse aspiratrice 1 de l'invention peut être agrémentée d'accessoires pour des utilisations spécifiques. En effet, il est possible d'y fixer une raclette, un dispositif d'épandage de liquide ou de gaz afin, par exemple, de solidifier les déjections canines avant de les aspirer, une brosse, une ou plusieurs roulettes, une raclette, un aimant pour permettre la récupération de pièces métalliques assez lourdes, un grattoir, au moins un gicleur de pulvérisation, un râteau, une griffe pour l'arrachage de mauvaises herbes qui sont ensuite immédiatement aspirées par la buse aspiratrice 1 , et tous les accessoires de jardinage utilisables en combinaison avec un aspirateur 9. Un réducteur de diamètre de la buse aspiratrice 1 peut aussi être fixé à ladite buse aspiratrice 1 pour faciliter l'aspiration de petits déchets dans des espaces étroits inaccessibles à une buse aspiratrice 1 de gros diamètre, ou tout autre accessoire permettant d'effectuer un nettoyage particulier. De plus, la buse aspiratrice 1 peut être munie d'une sangle permettant à l'utilisateur de l'accrocher à son épaule. Le sabot 2 fixé à l'extrémité de la buse aspiratrice 1 peut être formé d'une seule pièce moulée qui est soudée à la buse aspiratrice 1 ou fixée par des moyens de fixations amovibles. La Fig. 3 illustre un exemple de réalisation de poignée 3 prévue pour être disposée de façon amovible sur la buse aspiratrice 1 de l'invention. Cette poignée 3 est réalisée en une matière résistante et légère comme, par exemple, du titane et sa forme est choisie pour que sa prise en main soit confortable. La buse aspiratrice 1 de la présente invention est prévue pour s'adapter en particulier à des appareils d'aspiration de déchets urbains et elle peut être dissociable de son sabot 2. Ainsi, si la buse aspiratrice 1 a été détériorée, elle peut être remplacée sans nécessairement remplacer le sabot 2 dont le coût est plus élevé. Cependant, cette buse aspiratrice 1 pouvant avoir un diamètre correspondant à celui d'un aspirateur ménager, elle peut également être utilisée dans ce cadre de façon à ce que les utilisateurs de ce type d'appareils bénéficient également des avantages de la buse aspiratrice 1 de la présente invention, en particulier sa légèreté, sa robustesse et son confort d'utilisation. Kevlar, carbon-Kevlar, carbon-epoxy and provided with a shoe composed of a material with a Brinell hardness index of at least 100. Thus, the suction nozzle is light and handy while having a resistance very heavy wear. Other details and particularities of the invention will emerge from the dependent claims and from the description given below, without implied limitation, with reference to the accompanying drawings. Fig. 1 illustrates a view of the suction nozzle according to the present invention. Fig. 2 illustrates a perspective view of the shoe intended to be fixed to the suction nozzle of the present invention. Fig. 3 illustrates an embodiment of a handle intended to be fixed to the suction nozzle of the present invention. Fig. 4 illustrates how the nozzle of the invention is used on a street vacuum cleaner. The suction nozzle 1 as shown in FIG. 1 is a preferred embodiment. This is intended to be connected, in particular, to a vacuum cleaner 9 for urban waste. This type of device is mounted on wheels, possibly self-propelled and controlled with one hand by the user who holds the suction nozzle 1 in the other hand. This suction nozzle 1 has a length of at least 40 cm up to 3 m, but in a preferred embodiment, this length is 1.30 m so as to allow the user to vacuum the waste on the sidewalks and on the roadway without having to lean forward. In addition, the handle 3, which allows the gripping of the suction nozzle 1, is removably fixed thereon to be able to adapt its position according to the size of the user. In fact, the handle 3 is preferably positioned so as to allow the user to hold the suction nozzle 1, preferably in one hand with his arm slightly bent while he is vacuuming the waste on the surface on which it moves with the vacuum cleaner 9 to which the suction nozzle 1 of the invention is connected. In this way, when the user wishes to suck up waste lying below the surface on which he is, he does not need to lean forward to do this. Indeed, it suffices to extend its arm since the suction nozzle 1 has a sufficient length to reach a waste which is, for example, on the roadway, below the sidewalk on which the user moves. The preferred diameters of the suction nozzle 1 of the invention are 125 mm or 135 mm to be able to suck waste from the size, for example, of a crushed can or a bottle without these being trapped in the suction nozzle 1. However, diameters ranging from 30 mm to 300 mm can be envisaged for the suction of waste from small size and larger size. The suction nozzles 1 available on the market are generally made of PVC, this material proving to be heavy in use, which is tiring for the user who holds it with one hand for several hours at a stretch. The suction nozzle 1 of the invention is therefore preferably made of carbon-Kevlar, which significantly reduces its weight, thereby obtaining great comfort in use. A suction nozzle 1 made of PVC 125 mm in diameter and 1.30 m long has a weight greater than 2 kg when it is provided with a handle 3. The weight of a conventional suction nozzle 1 made of PVC can be compared which is usually provided with a steel handle 3 and which has a diameter of 125 mm for a length of 1.30 m with the weight of the suction nozzle 1 of the invention in carbon provided with a shoe 2 in titanium and a handle 3 also made of titanium, this suction nozzle 1 having the same dimensions as the suction nozzle 1 in PVC. The suction nozzle 1 of the invention has a weight which is at least 40% less than that of a suction nozzle 1 having the same dimensions, but made of PVC. In addition, PVC is fragile and it is brittle when it is subjected to friction. Indeed, after a few weeks of use, the part of the suction nozzle 1, which is in contact with the ground, wears and breaks very quickly. Other materials such as composite materials using woven materials or fibers can be used to obtain a lighter suction nozzle 1, but these materials fray considerably in use and are more expensive. Composite materials which include, in particular, a material selected from carbon fibers, resin fibers aramid, epoxy resins and mixtures thereof, and titanium alloys, titanium, aluminum and thermosetting plastics are materials used to make the vacuum nozzle 1. Other materials such as Kevlar carbon, Kevlar and any material having the characteristic of being light and rigid are preferred for the manufacture of said suction nozzle 1. The suction nozzle 1 of the invention is therefore provided with a shoe 2 disposed at its free end which comes into contact with the ground . This shoe 2 is in the form of a cylinder, preferably beveled. The latter follows the end of the suction nozzle 1 to which it is fixed, for example, by welding. Thus, it is the shoe 2 which scrapes the ground and no longer the vacuum nozzle 1 itself. However, shoe 2 is made of a material which is very resistant to wear, such as titanium or one of its alloys. Its Brinell hardness index is 120 in a preferred embodiment, but it can also be lower, by at least 100. Thus, the suction nozzle 1 of the invention combines lightness and robustness without its manufacturing cost becoming exorbitant and above all makes it possible to obtain a practically wear-free element, which reduces its operating cost. The shoe 2, shown in FIG. 2, is a preferred embodiment. This consists of three parts 6, 7, 8 which are arranged as follows: The first part 6 is cylindrical and its diameter corresponds to that of the suction nozzle 1, this first part 6 is cut at a bevel at its end . The second part 7 disposed under the first part 6 has a shape matching that of the first part 6 and its thickness is greater than that of the first part 6. In fact, this second part 7 comes into contact with the ground during the use of the suction nozzle 1 and its wear is low if its thickness is at least 1 mm. The third part 8 of the shoe 2 consists of a piece in the form of a sausage (8 mm in diameter, for example) which is arranged at the base and at the rear of the shoe. 2. This shoe 2 preferably has a thickness of 2 or 3 mm, because a lower thickness would make this part sharp. The shoe 2 preferably comprises at least one cutout 4 allowing the passage of air, which prevents the suction nozzle 1 from being pressed against the ground during suction. This shoe 2 also comprises, in a preferred embodiment, a heel 5 made of elastic material (of the rubber type). This heel 5 absorbs vibrations and shocks due to the contact of the suction nozzle 1 with the ground and it also reduces the noise caused by the friction of the shoe 2 with the ground. This heel 5 is fixed so that it can be replaced easily and as often as its degree of wear requires. The suction nozzle 1 of the invention can be decorated with accessories for specific uses. Indeed, it is possible to attach a squeegee, a device for spreading liquid or gas in order, for example, to solidify canine excrement before aspirating it, a brush, one or more rollers, a squeegee, a magnet to allow the recovery of fairly heavy metal parts, a scraper, at least one spray nozzle, a rake, a claw for lifting weeds which are then immediately sucked by the suction nozzle 1, and all gardening accessories usable in combination with a vacuum cleaner 9. A diameter reduction of the suction nozzle 1 can also be fixed to said suction nozzle 1 to facilitate the suction of small waste in narrow spaces inaccessible to a suction nozzle 1 of large diameter, or any other accessory for special cleaning. In addition, the suction nozzle 1 can be provided with a strap allowing the user to hang it on his shoulder. The shoe 2 fixed to the end of the suction nozzle 1 can be formed from a single molded part which is welded to the suction nozzle 1 or fixed by removable fixing means. Fig. 3 illustrates an example of embodiment of handle 3 intended to be removably disposed on the suction nozzle 1 of the invention. This handle 3 is made of a resistant and light material such as, for example, titanium and its shape is chosen so that its grip is comfortable. The suction nozzle 1 of the present invention is designed to adapt in particular to urban waste suction devices and it can be separable from its shoe 2. Thus, if the suction nozzle 1 has been damaged, it can be replaced without necessarily replacing shoe 2, the cost of which is higher. However, this suction nozzle 1 can have a diameter corresponding to that of a household vacuum cleaner, it can also be used in this context so that users of this type of device also benefit from the advantages of the suction nozzle 1 of the present invention, in particular its lightness, its robustness and its comfort of use.

Claims

R E V E N D I C A T I O N S
1. Buse aspiratrice (1) rigide prévue pour être rattachée à un appareil d'aspiration (9) par l'intermédiaire en particulier d'un tube flexible, ladite buse aspiratrice (1) étant coupée en biseau à son extrémité libre, cette buse aspiratrice (1) étant caractérisée en ce qu'elle est munie d'un sabot (2) dont la forme est complémentaire à l'extrémité libre de la buse aspiratrice (1), ledit sabot (2) étant disposé sur au moins une partie du pourtour de l'extrémité libre de la buse aspiratrice (1) et étant composé d'une matière présentant un indice de dureté Brinell minimum de 100. 1. Rigid suction nozzle (1) designed to be attached to a suction device (9) in particular by means of a flexible tube, said suction nozzle (1) being cut at a bevel at its free end, this nozzle vacuum cleaner (1) being characterized in that it is provided with a shoe (2) whose shape is complementary to the free end of the vacuum nozzle (1), said shoe (2) being arranged on at least one part of the periphery of the free end of the suction nozzle (1) and being composed of a material having a minimum Brinell hardness index of 100.
2. Buse aspiratrice (1) selon la revendication 1 , caractérisée en ce qu'elle est composée d'une matière choisie parmi : a) des matériaux composites qui comprennent, en particulier, une matière choisie parmi des fibres de carbone, des fibres de résine aramide, des résines époxy et leurs mélanges, et b) des alliages de titane, du titane, de l'aluminium et des plastiques thermodurcissables. 2. Suction nozzle (1) according to claim 1, characterized in that it is composed of a material chosen from: a) composite materials which comprise, in particular, a material chosen from carbon fibers, aramid resin, epoxy resins and mixtures thereof, and b) titanium alloys, titanium, aluminum and thermosetting plastics.
3. Buse aspiratrice (1) selon la revendication 2, caractérisée en que ledit sabot (2) est composé d'une matière choisie parmi des alliages de titane et du titane. 3. Suction nozzle (1) according to claim 2, characterized in that said shoe (2) is composed of a material chosen from titanium alloys and titanium.
4. Buse aspiratrice (1 ) selon la revendication 1 ou 3, caractérisée en ce que le sabot (2) est fixé à l'extrémité libre de la buse aspiratrice (1) et en prolongement de celle-ci. 4. Suction nozzle (1) according to claim 1 or 3, characterized in that the shoe (2) is fixed to the free end of the suction nozzle (1) and in extension thereof.
5. Buse aspiratrice (1 ) selon l'une des revendications 1 , 3 ou 4, caractérisée en ce que le sabot (2) est pourvu d'au moins une découpe5. suction nozzle (1) according to one of claims 1, 3 or 4, characterized in that the shoe (2) is provided with at least one cutout
(4) prévue pour permettre une circulation d'air entre l'extrémité libre de la buse aspiratrice (1 ) et le sol. (4) designed to allow air circulation between the free end of the suction nozzle (1) and the floor.
6. Buse aspiratrice (1) selon l'un des revendications 1 , 3, 4 ou 5, caractérisée en ce que le sabot (2) est également muni d'un talon (5) en matière élastique, ledit talon (5) étant disposé sur au moins une partie de la face du sabot (2) prévue pour entrer en contact avec le sol. 6. suction nozzle (1) according to one of claims 1, 3, 4 or 5, characterized in that the shoe (2) is also provided with a heel (5) of elastic material, said heel (5) being disposed on at least part of the face of the shoe (2) intended to come into contact with the ground.
7. Buse aspiratrice (1) selon l'une des revendications précédentes, caractérisée en ce que sa longueur est comprise entre 40 cm et 3 m. 7. Suction nozzle (1) according to one of the preceding claims, characterized in that its length is between 40 cm and 3 m.
8. Buse aspiratrice (1) selon l'une des revendications précédentes, caractérisée en ce que son diamètre est compris entre 40 et 300 mm. 8. Suction nozzle (1) according to one of the preceding claims, characterized in that its diameter is between 40 and 300 mm.
9. Buse aspiratrice (1) selon l'une des revendications précédentes, caractérisée en ce qu'elle est munie d'une poignée (3) fixée, en particulier, de façon amovible sur sa partie supérieure de façon à être à portée de main d'un utilisateur. 9. suction nozzle (1) according to one of the preceding claims, characterized in that it is provided with a handle (3) fixed, in particular, removably on its upper part so as to be close at hand of a user.
10. Buse aspiratrice (1) selon l'une des revendications précédentes, caractérisée en ce qu'elle est munie d'accessoires prévus pour être fixés près de l'extrémité où est disposé le sabot (2), lesdits accessoires étant choisis parmi les accessoires de nettoyage, ramassage et/ou de jardinage suivants : roulette, brosse, dispositif d'épandage de liquide, dispositif d'épandage de gaz, grattoir, raclette, gicleur de pulvérisation, réducteur de diamètre de la buse aspiratrice, râteau, griffe de jardinage, aimant. 10. Suction nozzle (1) according to one of the preceding claims, characterized in that it is provided with accessories intended to be fixed near the end where the shoe (2) is arranged, said accessories being chosen from among following cleaning, collecting and / or gardening accessories: roller, brush, liquid spreading device, gas spreading device, scraper, squeegee, spray nozzle, suction nozzle diameter reducer, rake, claw gardening, loving.
PCT/BE2003/000175 2003-10-14 2003-10-14 Suction nozzle WO2005035878A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2003273643A AU2003273643A1 (en) 2003-10-14 2003-10-14 Suction nozzle
PCT/BE2003/000175 WO2005035878A1 (en) 2003-10-14 2003-10-14 Suction nozzle
EP03757557A EP1682727A1 (en) 2003-10-14 2003-10-14 Suction nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/BE2003/000175 WO2005035878A1 (en) 2003-10-14 2003-10-14 Suction nozzle

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WO2005035878A1 true WO2005035878A1 (en) 2005-04-21

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AU (1) AU2003273643A1 (en)
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK201570191A1 (en) * 2015-03-31 2016-10-10 Timan As A cleaning device using suction with a whirlwind effect
WO2018224127A1 (en) 2017-06-06 2018-12-13 Alfred Kärcher SE & Co. KG Floor nozzle device, cleaning roller for textile surface cleaning and suction machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112554107A (en) * 2020-12-24 2021-03-26 牛桂平 Environment-friendly intelligent sweeper capable of compressing garbage

Citations (4)

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Publication number Priority date Publication date Assignee Title
US1446854A (en) * 1918-03-04 1923-02-27 American Radiator Co Suction cleaning tool
US3710412A (en) * 1971-06-11 1973-01-16 J Hollowell Vacuum trash collector
US4597203A (en) * 1985-08-12 1986-07-01 Middleton Carlisle A Convertible snowblower using rectangular shroud interface
EP1031311A1 (en) * 1999-02-16 2000-08-30 Flexible Ducting Limited Suction hose comprising rigid and flexible portions

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1446854A (en) * 1918-03-04 1923-02-27 American Radiator Co Suction cleaning tool
US3710412A (en) * 1971-06-11 1973-01-16 J Hollowell Vacuum trash collector
US4597203A (en) * 1985-08-12 1986-07-01 Middleton Carlisle A Convertible snowblower using rectangular shroud interface
EP1031311A1 (en) * 1999-02-16 2000-08-30 Flexible Ducting Limited Suction hose comprising rigid and flexible portions

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK201570191A1 (en) * 2015-03-31 2016-10-10 Timan As A cleaning device using suction with a whirlwind effect
DK178772B1 (en) * 2015-03-31 2017-01-09 Timan As A cleaning device using suction with a whirlwind effect
WO2018224127A1 (en) 2017-06-06 2018-12-13 Alfred Kärcher SE & Co. KG Floor nozzle device, cleaning roller for textile surface cleaning and suction machine

Also Published As

Publication number Publication date
AU2003273643A1 (en) 2005-04-27
EP1682727A1 (en) 2006-07-26

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