EP3546653A1 - Snow-removal blade with variable working height - Google Patents

Snow-removal blade with variable working height Download PDF

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Publication number
EP3546653A1
EP3546653A1 EP19164956.5A EP19164956A EP3546653A1 EP 3546653 A1 EP3546653 A1 EP 3546653A1 EP 19164956 A EP19164956 A EP 19164956A EP 3546653 A1 EP3546653 A1 EP 3546653A1
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EP
European Patent Office
Prior art keywords
blade
snow
segments
curvature
blade according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19164956.5A
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German (de)
French (fr)
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EP3546653B1 (en
Inventor
Guy Lafon
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Euro Investissement SAS
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Euro Investissement SAS
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Publication of EP3546653A1 publication Critical patent/EP3546653A1/en
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    • 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
    • E01H5/04—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material
    • E01H5/06—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by non-driven elements, e.g. scraper blades, snow-plough blades, scoop blades
    • E01H5/065—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by non-driven elements, e.g. scraper blades, snow-plough blades, scoop blades characterised by the form of the snow-plough blade, e.g. flexible, or by snow-plough blade accessories

Definitions

  • the present invention relates to a snow plow with variable working height.
  • snow plow means an elongate piece, generally rectangular, flattened and with a concave face. This snow plow is placed at the front of a vehicle or, alternatively, towed by a vehicle. Such a blade makes it possible, when the vehicle is moving, to push the snow present on the taxiway on at least one side of the track. Such a blade is generally mounted on a device for positioning it closer to the driving lane, so as to ensure maximum removal of the snow to bring the lane as much as possible to black.
  • the width of the blade corresponds to the working height of the blade, that is to say a width of the blade in relation to the maximum height of snow that will be pushed by the blade. If the snow depth is greater than the working height of the blade, the snow passes over the blade and is not pushed back on the sides of the taxiway but falls on the latter.
  • one side of the blade designated as the upper edge, and which corresponds to the side of the blade furthest from the lane, is concave along the largest dimension of the blade. The opening of the concavity is oriented towards the snow to evacuate. In this way, the upper edge picks up the snow, like a spoon, and brings it back to the front and the bottom of the blade.
  • the invention intends to remedy more particularly by proposing a snow plow that can be used regardless of the height of snow on the lane to be cleared of snow.
  • the subject of the invention is a snow-clearing blade comprising a face adapted to be in contact with the snow to be evacuated from a traffic lane. face having at least one concave portion along the largest dimension of the blade, also referred to as the width of the blade, the opening of the concave portion being directed towards the snow to be evacuated from the snow-covered lane when the snow blade is in configuration of use, characterized in that the blade comprises a flat main body and, in the upper part of the body, a concave portion equipped with a means for varying the radius of curvature of the concavity of the part and in that said means variation of the radius of curvature of the concavity comprises at least two articulated segments.
  • the figure 1 illustrates a snow plow 1 according to one embodiment of the invention.
  • the blade 1 comprises a rectangular main body 2 and plane, at least on a face 3 said front face and intended to be in contact with the snow when the blade 1 is used to clear snow a lane, not shown.
  • the body 2 is, in the example, made of metallic material. He understands, in the lower part while watching the figure 1 a first portion 4, rectilinear, intended to be closer to the lane when the blade 1 is used to clear snow.
  • the part 4 also referred to hereafter as the lower edge of the blade 1, is of a material adapted to not damage the flow path when the blade 1 is supported thereon.
  • part 4 is made of polymers, for example rubber or polyurethane. Such part 4 may be removably mounted to allow its change in case of wear.
  • the rear face 5 of the main body 2, opposite the face 3, is provided with fastening means 6, known per se, from the blade 1 to a vehicle.
  • the blade 1 is intended to be fixed to the front of a vehicle, not shown.
  • the blade 1 is a push-type blade.
  • Control means 60 of the blade also equip the face 5 of the body 2.
  • the means 60 are positioned between the blade 1 itself and the fixing means 6 to a vehicle. They lift, lower and angularly orient the blade 1 relative to the ground and the direction of movement of the vehicle carrying the blade 1.
  • the control means 60 are managed from the cab of the vehicle by the driver.
  • This portion 7 is concave, over the entire length L of the blade 1.
  • the concavity C therefore the access opening to the open rounded volume, is oriented towards the face 3, so forward of the blade 1 and, de facto, towards the snow when the blade 1 is used to clear snow a lane.
  • Part 7, also referred to hereafter as the upper edge of the blade 1, is formed of at least two independent segments 8.
  • the blade 1 comprises, in the example, three identical segments 8.
  • the segments are not identical and / or their number is different.
  • the segments 8 are formed here by a metal structure 9 in the form of a rectangular grid on which are fixed polymer plates 10, for example plates 10 HDPE (high density polyethylene) or PU (polyurethane).
  • the segments 8 are mono-material, it being understood that they may be made of polymers, metal or a composite material.
  • Each of the segments 8 is in one piece along the entire length L of the blade 1.
  • the curved upper part of the snow plow is formed of several rows of independent segments, each segment being less than half a length long. of the snow blade.
  • the segments 8 are arranged parallel to each other and the width L of the blade 1. More specifically, it is the edges 11 defining the length L8 of each segment 8 which are parallel.
  • the length L8 of each segment 8 corresponds to the largest dimension of the blade, usually designated as the width L of the blade 1.
  • the length L8 of each segment 8 is smaller than the width L of the blade 1.
  • the faces 12, facing the rear of the blade 1, of the different segments 8 are not aligned in the same plane.
  • the faces 12, which participate in defining the rear face 5 of the blade 1, are arranged angularly relative to each other, so as to define a portion of a circle located in the extension of the body 2.
  • the body 2, the lower parts 4 and upper 7 define a hook profile to the blade 1.
  • the segments 8 are thus arranged so as to configure a rounded upper edge 7 of the blade, the curvature being defined by the arcuate disposition of the segments 8.
  • the segments 8 define an open volume with a rounded bottom , or chute, and whose opening is oriented towards the front of the blade 1 defined by the face 3 of the blade 1.
  • the holding in position of the segments 8 in a given position, therefore with a given radius of curvature R of the blade 1, is provided by at least one means for varying the radius of curvature R of the circle C forming the concavity of the part 7.
  • the blade 1 is equipped with six members 13 for varying the radius of curvature R distributed regularly over the entire length L of the blade 1 and constituting a means for varying the radius of curvature.
  • the number and / or distribution of the variation members 13 is adapted to the configuration of the blade 1 on which they are mounted.
  • the variation members 13 are particularly visible at the figure 2 .
  • These members 13 comprise links 100.
  • the links 100 have an elongated geometric shape, generally perforated rectangle. They are formed of two rectangular tabs 101.
  • the links 100 are connected to each other by shafts 110 defining axes of rotation.
  • the shafts 110 also participate in the parallel holding of the tabs 100.
  • each link 100 is rotatable about two shafts 110, located at the ends of the links 100, relative to the two links 100 to which it is connected.
  • the blade 1, visible in its entirety at the figure 1 is equipped with six sets 111 of links 100. These sets 111 are distributed along the length L of the blade 1. Their numbers and / or their positions are adapted to the geometric and dimensional configuration of the snow plow. In particular, two sets 111 are provided in the central part of the blade 1, in the vicinity of the attachment zone 6 of the blade 1 on a vehicle.
  • the set 111 of the links 111 is set in motion by at least one set of links 120.
  • two sets of links 120 are provided. They are mounted on the games 111 of links 100 located between the games 111 in the central part and the games 111 located closer to the ends of the alem 1.
  • the rods 120 are mounted generally in the middle position on the half-length of the blade 1. It is conceivable that the position and / or the number of rods 120 is adapted to the blade 1 in order to be able to perform a balanced, continuous movement with a minimum of effort segments 8.
  • the term rod must be understood in its general definition, namely a metal piece which is articulated at its ends on two moving parts and which transmits, modifying or not, to one the movement of the other.
  • the links 120 have, in the example, a T shape. They are fixed by one end of a branch to a fixed point on the body 2 of the alem 1, by another branch end to a hinge plate 121 secured to a link 100 and the third end, to the push rod 160 of a cylinder 161.
  • two cylinders 161 arranged on either side of the fastener 6 of the blade 1 on a vehicle provide the maneuver.
  • the number and / or position of the cylinders 161 are different.
  • a translation movement along the double arrow F of the jack 161 generates a rotational movement along the double arrow F1 of the rod 120 and thus induces a displacement of the free end 70 of the upper part 7 of the blade 1 according to the double arrow F2.
  • This movement moves the links 100, by variation the curvature radius R of the concavity C.
  • the articulated portion 7 of the snow plow is curved more or less in an adjustable and continuous manner.
  • FIGs 3 and 4 illustrate two positions close to the dead spots of the free end 70 of the curved portion 7 of the blade 1.
  • the curvature is maximum, so the radius of curvature R is minimal.
  • the stroke of the cylinder 161 is maximum, the rods 120 pushing the links 100, so the segments 8, towards the lower edge 4 of the blade 1.
  • the radius R is generally between 0.25 m and 0.35 m in this configuration.
  • the curvature C of the hinged portion 7 of the blade 1 makes it possible to return the snow to the traffic lane and thus to allow the blade 1 to push back the snow, while maintaining a relatively fast forward speed of the vehicle, namely in general between 40 km / h and 55 km / h.
  • the figure 4 represents the blade 1 with the articulated portion 7 at the minimum of curvature, so with a radius of curvature R maximum, the cylinder 161 having a minimum stroke. In this position, the segments 8 are moved away from the edge 4 of the blade 1.
  • the radius of curvature R is between 0.50 m and 0.60 m.
  • the blade 1 repels the snow when it is present on a roadway over a relatively large thickness, namely generally between 0.15 m and 0.70 m.
  • the speed of advance of the vehicle is relatively low, given the large amount of snow to be evacuated. In such a configuration, the vehicle advance is typically between 10 km / h and 40 km / h.
  • the passage of the configuration of the figure 3 to that of the figure 4 is reversible and continuous.
  • all the radii R of curvature between the minimum and maximum radii are possible. It suffices for this to block the stroke of the cylinders 161 to a given value.
  • only certain values of the radius of curvature are possible.
  • the stroke of the cylinders 161 is not step by step.
  • the movement of the segments 8 in one direction or the other takes place while keeping the difference between segments 8.
  • the deviation is variable. In this case, when the radius R is minimal, the edges 11 of the segments 8 are farther apart than when the radius of curvature R is maximum.
  • flexible flaps are mounted on the edges 11 of the segments 8.
  • a snow plow according to the invention provides an adjustable working height as required, namely according to the snow depth on a taxiway to clear.
  • the adjustment of the curvature C of the blade 1 is performed by the driver of the vehicle, advantageously continuously during the movement of the vehicle. The driver can therefore continuously adjust the working height of the snow plow, without stopping the vehicle and without having to change the blade.
  • the variation of the radius of curvature is associated with a forward or backward tilting movement of the blade and / or a pivoting movement to the right or left of the blade with respect to the axis longitudinal of the vehicle equipped with the blade, so compared to the direction of movement of the vehicle.
  • the invention applies to all types of snow plow blades, namely fixed blades such as that illustrated here, but also so-called convertible or bow blades.
  • Such blades are formed of at least two blade bodies arranged in a V, each branch of the V being able, on some blades, to be movable relative to the other.
  • the lower edge of the snow plow is equipped with an additional metal member, movable, adapted to pass, in working position, under part 4 and to scrape the blade. hard snow or ice.
  • Such a blade is called bi-scraping.
  • the invention also applies to so-called tri-scraping blades. In this case, there is an additional sweep by a fixed flap positioned at the rear of the bi-scraping flap.
  • the curvature of the blade is either stopped or in motion during the displacement of the carrier vehicle of the blade, regardless of the type and dimensions of the latter.
  • the motion of the segments 8 is obtained by links configured in double rhombus.
  • Legs have lights in which trees move, under the action of cams actuated by cylinders. The displacement of the legs induces the movement of the links in which they are arranged.
  • the movement of the links is achieved by a rack-type device, with a threaded rod or by a pantograph type device.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Soil Working Implements (AREA)

Abstract

L'invention concerne une lame de déneigement comportant une face (3) adaptée pour être en contact avec la neige à évacuer d'une voie de circulation, ladite face (3) comportant au moins une partie concave (C) selon la plus grande dimension de la lame, l'ouverture de la partie concave (C) étant orientée vers la neige à évacuer de la voie de circulation enneigée lorsque la lame de déneigement est en configuration d'utilisation. la lame est équipée d'un moyen (161, 111, 120, 121) de variation du rayon de courbure (R) de la concavité (C) comprenant au moins deux segments articulés.The invention relates to a snow plow comprising a face (3) adapted to be in contact with snow to be evacuated from a traffic lane, said face (3) comprising at least one concave portion (C) in the largest dimension of the blade, the opening of the concave portion (C) being directed towards the snow to be evacuated from the snow-covered traffic lane when the snow plow is in the configuration of use. the blade is equipped with means (161, 111, 120, 121) for varying the radius of curvature (R) of the concavity (C) comprising at least two articulated segments.

Description

La présente invention concerne une lame de déneigement à hauteur de travail variable.The present invention relates to a snow plow with variable working height.

Par lame de déneigement on désigne une pièce de forme allongée, généralement rectangulaire, aplatie et avec une face concave. Cette lame de déneigement est placée à l'avant d'un véhicule ou, en variante, tractée par un véhicule. Une telle lame permet, lorsque le véhicule se déplace, de pousser la neige présente sur la voie de circulation sur au moins un côté de la voie. Une telle lame est généralement montée sur un dispositif permettant de la positionner au plus près de la voie de circulation, de sorte à assurer un enlèvement maximum de la neige pour amener la voie de circulation autant que possible au noir.By snow plow means an elongate piece, generally rectangular, flattened and with a concave face. This snow plow is placed at the front of a vehicle or, alternatively, towed by a vehicle. Such a blade makes it possible, when the vehicle is moving, to push the snow present on the taxiway on at least one side of the track. Such a blade is generally mounted on a device for positioning it closer to the driving lane, so as to ensure maximum removal of the snow to bring the lane as much as possible to black.

Selon la largeur de la voie à déneiger et selon la hauteur-donc la quantité- de neige présente sur la voie, on utilise des lames plus ou moins longues, plus ou moins hautes et/ou plus ou moins concaves. De plus certaines lames sont configurées en V, agissant ainsi comme un coin pour repousser la neige simultanément en direction des deux côtés de la voie de circulation. Il existe donc plusieurs types de lames adaptées aux diverses conditions de déneigement.Depending on the width of the road to be snowed and the height - so the amount - of snow present on the track, we use more or less long blades, more or less high and / or more or less concave. In addition some blades are configured in V, thus acting as a corner to repel the snow simultaneously towards both sides of the taxiway. There are therefore several types of blades adapted to the various conditions of snow removal.

Si un utilisateur en charge du déneigement peut posséder plusieurs types de lames selon ses besoins, il n'en demeure pas moins que, en cours de déneigement, les besoins et conditions d'utilisation des lames peuvent changer et qu'un changement de lame, dans les conditions de de déneigement, n'est pas aisé si ce n'est impossible.If a user in charge of snow removal can have several types of blades according to his needs, the fact remains that, during snow removal, the needs and conditions of use of the blades can change and that a blade change, under the conditions of snow removal, is not easy if it is not impossible.

Typiquement, lors du circuit emprunté par l'utilisateur, des zones de fort enneigement, par exemple des congères, peuvent se rencontrer. De même, les conditions météorologiques, par exemple le vent, des chutes de neige, peuvent à tout moment modifier la quantité de neige présente sur la voie de circulation. De ce fait, la lame de déneigement initialement montée sur le véhicule peut s'avérer, au moins temporairement, inadaptée. Pour remédier à cela, on connait, par exemple par WO-A-2014/203 143 , des lames à configuration variable pouvant passer d'une forme en V à une forme droite tout en pouvant faire varier l'angle d'attaque de la lame par rapport au front de neige. Pour mémoire, on définit ici l'angle d'attaque de la lame comme étant l'angle formé entre la direction de déplacement du véhicule et le plan principal de la lame. Ceci étant de telles lames présentent une largeur fixe. La largeur de la lame correspond à la hauteur de travail de la lame, c'est-à-dire une largeur de la lame en relation avec la hauteur maximale de neige qui sera poussée par la lame. Si la hauteur de neige est supérieure à la hauteur de travail de la lame, la neige passe par-dessus la lame et n'est pas repoussée sur les côtés de la voie de circulation mais retombe sur cette dernière. De plus, un côté de la lame, désigné comme étant le bord supérieur, et qui correspond au côté de la lame le plus éloigné de la voie de circulation, est concave selon la plus grande dimension de la lame. L'ouverture de la concavité est orientée en direction de la neige à évacuer. De la sorte, le bord supérieur ramasse la neige, à la façon d'une cuillère, et la ramène vers l'avant et le bas de la lame. Ainsi, la neige est orientée vers la lame et on optimise autant que possible le dégagement de la ne soit poussée par la lame. Or, il s'avère, lorsque la hauteur de neige est supérieure à la largeur ou hauteur utile de la lame, que le bord supérieur concave, du fait de sa courbure, se comporte comme un crochet dans la neige et entrave l'avance du véhicule de déneigement. On connait par WO-A-9429529 une lame de déneigement en deux parties dans le sens vertical. La partie haute est articulée par rapport à la partie basse. US-A-1926011 décrit une lame de déneigement avec un montant fixe et deux parties, haute et basse, mobiles sur ce montant de sorte à faire varier le rayon de courbure de la lame. WO-A-2006/040397 divulgue également une lame de déneigement avec une partie supérieure mobile de sorte à faire varier le rayon de courbure de la lame. De telles lames offrent néanmoins de possibilités de variation de la courbure restreintes.Typically, during the circuit taken by the user, areas of strong snow, for example snowdrifts, can meet. Similarly, weather conditions, such as wind, snow, can change the amount of snow on the taxiway at any time. As a result, the snow plow initially mounted on the vehicle may prove, at least temporarily, unsuitable. To remedy this, we know, for example by WO-A-2014 / 203,143 , blades with variable configuration that can pass from a shape to V to a straight shape while being able to vary the angle of attack of the blade with respect to the snow front. For the record, the angle of attack of the blade is defined here as the angle formed between the direction of movement of the vehicle and the main plane of the blade. This being such blades have a fixed width. The width of the blade corresponds to the working height of the blade, that is to say a width of the blade in relation to the maximum height of snow that will be pushed by the blade. If the snow depth is greater than the working height of the blade, the snow passes over the blade and is not pushed back on the sides of the taxiway but falls on the latter. In addition, one side of the blade, designated as the upper edge, and which corresponds to the side of the blade furthest from the lane, is concave along the largest dimension of the blade. The opening of the concavity is oriented towards the snow to evacuate. In this way, the upper edge picks up the snow, like a spoon, and brings it back to the front and the bottom of the blade. Thus, the snow is oriented towards the blade and optimizes as much as possible the release of the is pushed by the blade. However, when the snow depth is greater than the useful width or height of the blade, it appears that the concave upper edge, due to its curvature, behaves like a hook in the snow and hinders the advance of the blade. snow removal vehicle. We know by WO-A-9429529 a snow blade in two parts in the vertical direction. The upper part is hinged to the lower part. US Patent 1926011 discloses a snow plow with a fixed amount and two parts, high and low, movable on this amount so as to vary the radius of curvature of the blade. WO-2006/040397 also discloses a snow plow with an upper portion movable so as to vary the radius of curvature of the blade. Such blades nevertheless offer restricted possibilities of variation of the curvature.

C'est à ces inconvénients qu'entend plus particulièrement remédier l'invention en proposant une lame de déneigement utilisable quelle que soit la hauteur de neige sur la voie de circulation à déneiger.It is these drawbacks that the invention intends to remedy more particularly by proposing a snow plow that can be used regardless of the height of snow on the lane to be cleared of snow.

A cet effet, l'invention a pour objet une lame déneigement comportant une face adaptée pour être en contact avec la neige à évacuer d'une voie de circulation, ladite face comportant au moins une partie concave selon la plus grande dimension de la lame, également dénommée largeur de la lame, l'ouverture de la partie concave étant orientée vers la neige à évacuer de la voie de circulation enneigée lorsque la lame de déneigement est en configuration d'utilisation, caractérisée en ce que la lame comprend un corps principal plan et, en partie supérieure du corps, une partie concave équipée d'un moyen de variation du rayon de courbure de la concavité de la partie et en ce que ledit moyen de variation du rayon de courbure de la concavité comprend au moins deux segments articulés.For this purpose, the subject of the invention is a snow-clearing blade comprising a face adapted to be in contact with the snow to be evacuated from a traffic lane. face having at least one concave portion along the largest dimension of the blade, also referred to as the width of the blade, the opening of the concave portion being directed towards the snow to be evacuated from the snow-covered lane when the snow blade is in configuration of use, characterized in that the blade comprises a flat main body and, in the upper part of the body, a concave portion equipped with a means for varying the radius of curvature of the concavity of the part and in that said means variation of the radius of curvature of the concavity comprises at least two articulated segments.

Ainsi, en faisant varier le rayon de courbure, on obtient une face active plus ou moins concave donc, de facto, on réalise une lame de déneigement à hauteur variable, donc avec une hauteur utile de travail, donc de déneigement, variable selon l'épaisseur de neige présente sur la voie de circulation.Thus, by varying the radius of curvature, we obtain a more or less concave active face so, de facto, we realize a snow plow at variable height, so with a useful working height, so snow removal, variable according to the snow depth present on the taxiway.

Selon des aspects avantageux mais non obligatoires de l'invention, une telle lame peut comprendre une ou plusieurs des caractéristiques suivantes:

  • les segments sont parallèles entre eux et définissent la plus grande dimension de la lame de déneigement.
  • Chaque segment est monobloc et s'étend sur toute la plus grande dimension de la lame de déneigement.
  • Au moins un organe de variation du rayon de courbure de la concavité est fixé sur une face des segments.
  • Les segments sont mobiles autour d'arbres d'articulation parallèles à la plus grande dimension de la lame de déneigement.
  • Le mouvement de pivotement des segments autour des arbres d'articulation est réalisé par au moins un jeu de maillons mis en mouvement par au moins une biellette et un vérin.
  • Le mouvement de pivotement des segments autour des arbres d'articulation est réalisé par au moins un jeu de maillons mis en mouvement par au moins un dispositif de type crémaillère et un vérin.
  • Le mouvement de pivotement des segments autour des arbres d'articulation est réalisé par au moins un jeu de maillons mis en mouvement par au moins un dispositif de type pantographe et un vérin.
  • Le mouvement de pivotement des segments autour des arbres d'articulation s'effectue à écartement constant entre les segments.
  • Le mouvement de pivotement des segments autour des arbres d'articulation s'effectue à écartement variable entre les segments.
According to advantageous but non-mandatory aspects of the invention, such a blade may comprise one or more of the following features:
  • the segments are parallel to each other and define the largest dimension of the snow plow.
  • Each segment is one-piece and extends over the largest dimension of the snow plow.
  • At least one member for varying the radius of curvature of the concavity is fixed on one face of the segments.
  • The segments are movable around hinge shafts parallel to the largest dimension of the snow plow.
  • The pivoting movement of the segments around the articulation shafts is achieved by at least one set of links set in motion by at least one connecting rod and a jack.
  • The pivoting movement of the segments around the hinge shafts is achieved by at least one set of links set in motion by at least one rack-type device and a jack.
  • The pivoting movement of the segments around the articulation shafts is achieved by at least one set of links set in motion by at least one device of the pantograph type and a jack.
  • The pivoting movement of the segments around the hinge shafts takes place at constant spacing between the segments.
  • The pivoting movement of the segments around the hinge shafts is at variable spacing between the segments.

L'invention sera mieux comprise et d'autres avantages de celle-ci apparaitront plus clairement à la lecture de la description qui va suivre de plusieurs modes de réalisation de l'invention, donnée à titre d'exemple non limitatif et faite en référence aux dessins suivants dans lesquels:

  • La figure 1 est une vue en perspective d'une lame de déneigement conforme à un mode de réalisation de l'invention,
  • la figure 2 est une vue en perspective, partielle et à plus grande échelle, d'une partie de la lame de la figure 1,
  • la figure 3 est une vue de côté selon la flèche III et à une autre échelle de la lame de la figure 1, dans une configuration illustrant une hauteur de travail minimale de la lame et
  • la figure 4 est une vue similaire à la figure 3, illustrant une configuration où la hauteur de travail de la lame est maximale.
The invention will be better understood and other advantages thereof will appear more clearly on reading the following description of several embodiments of the invention, given by way of non-limiting example and made with reference to following drawings in which:
  • The figure 1 is a perspective view of a snow plow according to one embodiment of the invention,
  • the figure 2 is a perspective view, partial and on a larger scale, of a part of the blade of the figure 1 ,
  • the figure 3 is a side view along the arrow III and on another scale the blade of the figure 1 in a configuration illustrating a minimum working height of the blade and
  • the figure 4 is a view similar to the figure 3 , illustrating a configuration where the working height of the blade is maximum.

La figure 1 illustre une lame de déneigement 1 conforme à un mode de réalisation de l'invention. Ici, la lame 1 comprend un corps principal 2 rectangulaire et plan, au moins sur une face 3 dite face avant et destinée à être en contact avec la neige lorsque la lame 1 est utilisée pour déneiger une voie de circulation, non illustrée.The figure 1 illustrates a snow plow 1 according to one embodiment of the invention. Here, the blade 1 comprises a rectangular main body 2 and plane, at least on a face 3 said front face and intended to be in contact with the snow when the blade 1 is used to clear snow a lane, not shown.

Le corps 2 est, dans l'exemple, en matériau métallique. Il comprend, en partie basse en regardant la figure 1, une première partie 4, rectiligne, destinée à être au plus près de la voie de circulation lorsque la lame 1 est utilisée pour déneiger. Ici, la partie 4, également désignée par la suite comme étant le bord inférieur de la lame 1, est en un matériau adapté pour ne pas détériorer la voie de circulation lorsque la lame 1 est en appui sur celle-ci. Avantageusement, la partie 4 est en polymères, par exemple en caoutchouc ou en polyuréthane. Une telle partie 4 peut être montée de manière amovible, afin d'autoriser son changement en cas d'usure.The body 2 is, in the example, made of metallic material. He understands, in the lower part while watching the figure 1 a first portion 4, rectilinear, intended to be closer to the lane when the blade 1 is used to clear snow. Here, the part 4, also referred to hereafter as the lower edge of the blade 1, is of a material adapted to not damage the flow path when the blade 1 is supported thereon. Advantageously, part 4 is made of polymers, for example rubber or polyurethane. Such part 4 may be removably mounted to allow its change in case of wear.

La face arrière 5 du corps principal 2, opposée à la face 3, est pourvue de moyens de fixation 6, connus en soi, de la lame 1 à un véhicule. Ici, la lame 1 est destinée à être fixée à l'avant d'un véhicule, non illustré. En d'autres termes, la lame 1 est une lame de type poussée. Des moyens de commande 60 de la lame, connus en soi et qui ne seront pas décrits en détail, équipent également la face 5 du corps 2. Les moyens 60 sont positionnés entre la lame 1 elle-même et les moyens de fixation 6 à un véhicule. Ils permettent de lever, abaisser et orienter angulairement la lame 1 par rapport au sol et au sens de déplacement du véhicule qui porte la lame 1. Les moyens de commande 60 sont gérés depuis la cabine du véhicule par le conducteur.The rear face 5 of the main body 2, opposite the face 3, is provided with fastening means 6, known per se, from the blade 1 to a vehicle. Here, the blade 1 is intended to be fixed to the front of a vehicle, not shown. In other words, the blade 1 is a push-type blade. Control means 60 of the blade, known per se and which will not be described in detail, also equip the face 5 of the body 2. The means 60 are positioned between the blade 1 itself and the fixing means 6 to a vehicle. They lift, lower and angularly orient the blade 1 relative to the ground and the direction of movement of the vehicle carrying the blade 1. The control means 60 are managed from the cab of the vehicle by the driver.

Une seconde partie 7 de la lame 1, opposée à la partie 4 par rapport au corps 2, forme la partie supérieure de la lame 1. Cette partie 7 est concave, sur toute la longueur L de la lame 1. La concavité C, donc l'ouverture d'accès au volume arrondi ouvert, est orientée vers la face 3, donc vers l'avant de la lame 1 et, de facto, en direction de la neige lorsque la lame 1 est utilisée pour déneiger une voie de circulation.A second portion 7 of the blade 1, opposite to the portion 4 relative to the body 2, forms the upper portion of the blade 1. This portion 7 is concave, over the entire length L of the blade 1. The concavity C, therefore the access opening to the open rounded volume, is oriented towards the face 3, so forward of the blade 1 and, de facto, towards the snow when the blade 1 is used to clear snow a lane.

La partie 7, également désignée par la suite comme étant le bord supérieur de la lame 1, est formée d'au moins deux segments 8 indépendants. La lame 1 comprend, dans l'exemple, trois segments 8 identiques. En variante les segments ne sont pas identiques et/ou leur nombre est différent. Les segments 8 sont formés, ici, par une structure métallique 9 en forme de quadrillage rectangulaire sur laquelle sont fixées des plaques 10 de polymères, par exemple des plaques 10 en PEHD (polyéthylène haute densité) ou en PU (polyuréthane). En variante, les segments 8 sont mono-matière, étant entendu qu'ils peuvent être en polymères, métal ou un matériau composite. Chacun des segments 8 est monobloc sur toute la longueur L de la lame 1. En variante non illustrée, la partie supérieure courbe de la lame de déneigement est formée de plusieurs rangées de segments indépendants, chaque segment ayant une longueur inférieure à une demi-longueur de la lame de déneigement.Part 7, also referred to hereafter as the upper edge of the blade 1, is formed of at least two independent segments 8. The blade 1 comprises, in the example, three identical segments 8. In a variant, the segments are not identical and / or their number is different. The segments 8 are formed here by a metal structure 9 in the form of a rectangular grid on which are fixed polymer plates 10, for example plates 10 HDPE (high density polyethylene) or PU (polyurethane). As a variant, the segments 8 are mono-material, it being understood that they may be made of polymers, metal or a composite material. Each of the segments 8 is in one piece along the entire length L of the blade 1. In a variant that is not shown, the curved upper part of the snow plow is formed of several rows of independent segments, each segment being less than half a length long. of the snow blade.

Comme cela ressort des figures 1 à 4, les segments 8 sont disposés parallèlement les uns aux autres et à la largeur L de la lame 1. Plus précisément, ce sont les bords 11 définissant la longueur L8 de chaque segment 8 qui sont parallèles. Ici, comme les segments 8 sont monoblocs, la longueur L8 de chaque segment 8 correspond à la plus grande dimension de la lame, habituellement désignée comme étant la largeur L de la lame 1. En variante, lorsque les segments 8 sont en plusieurs parties, la longueur L8 de chaque segment 8 est inférieure à la largeur L de la lame 1.As is apparent from Figures 1 to 4 , the segments 8 are arranged parallel to each other and the width L of the blade 1. More specifically, it is the edges 11 defining the length L8 of each segment 8 which are parallel. Here, as the segments 8 are monoblock, the length L8 of each segment 8 corresponds to the largest dimension of the blade, usually designated as the width L of the blade 1. Alternatively, when the segments 8 are in several parts, the length L8 of each segment 8 is smaller than the width L of the blade 1.

Les faces 12, orientées vers l'arrière de la lame 1, des différents segments 8 ne sont pas alignées dans un même plan. Les faces 12, qui participent à définir la face arrière 5 de la lame 1, sont disposées angulairement les unes par rapport aux autres, de sorte à définir une portion de cercle située dans le prolongement du corps 2. En d'autres termes, le corps 2, les parties inférieure 4 et supérieure 7 définissent un profil en crochet à la lame 1.The faces 12, facing the rear of the blade 1, of the different segments 8 are not aligned in the same plane. The faces 12, which participate in defining the rear face 5 of the blade 1, are arranged angularly relative to each other, so as to define a portion of a circle located in the extension of the body 2. In other words, the body 2, the lower parts 4 and upper 7 define a hook profile to the blade 1.

Les segments 8 sont donc disposés de sorte à configurer un bord supérieur 7 arrondi de la lame, la courbure étant définie par la disposition en arc de cercle des segments 8. En d'autres termes, les segments 8 définissent un volume ouvert à fond arrondi, ou goulotte, et dont l'ouverture est orientée vers l'avant de la lame 1 défini par la face 3 de la lame 1.The segments 8 are thus arranged so as to configure a rounded upper edge 7 of the blade, the curvature being defined by the arcuate disposition of the segments 8. In other words, the segments 8 define an open volume with a rounded bottom , or chute, and whose opening is oriented towards the front of the blade 1 defined by the face 3 of the blade 1.

Le maintien en position des segments 8 en une position donnée, donc avec un rayon de courbure R donné de la lame 1, est assuré par au moins un moyen de variation du rayon de courbure R du cercle C formant la concavité de la partie 7. Ici, la lame 1 est équipée de six organes 13 de variation du rayon de courbure R répartis régulièrement sur toute la longueur L de la lame 1 et constitutifs d'un moyen de variation du rayon de courbure. Le nombre et/ou la répartition des organes de variation 13 est adapté à la configuration de la lame 1 sur laquelle ils sont montés.The holding in position of the segments 8 in a given position, therefore with a given radius of curvature R of the blade 1, is provided by at least one means for varying the radius of curvature R of the circle C forming the concavity of the part 7. Here, the blade 1 is equipped with six members 13 for varying the radius of curvature R distributed regularly over the entire length L of the blade 1 and constituting a means for varying the radius of curvature. The number and / or distribution of the variation members 13 is adapted to the configuration of the blade 1 on which they are mounted.

Les organes de variation 13 sont particulièrement visibles à la figure 2. Ces organes 13 comprennent des maillons 100. Les maillons 100 ont une forme géométrique allongée, globalement en rectangle ajouré. Ils sont formés de deux pattes rectangulaires 101. Les maillons 100 sont reliés les uns aux autres par des arbres 110 définissant des axes de rotation. Les arbres 110 participent également au maintien parallèle des pattes 100. Ainsi chaque maillon 100 est mobile en rotation autour de deux arbres 110, situés aux extrémités des maillons 100, par rapport aux deux maillons 100 auxquels il est relié.The variation members 13 are particularly visible at the figure 2 . These members 13 comprise links 100. The links 100 have an elongated geometric shape, generally perforated rectangle. They are formed of two rectangular tabs 101. The links 100 are connected to each other by shafts 110 defining axes of rotation. The shafts 110 also participate in the parallel holding of the tabs 100. Thus each link 100 is rotatable about two shafts 110, located at the ends of the links 100, relative to the two links 100 to which it is connected.

Ici, la lame 1, visible en entier à la figure 1, est équipée de six jeux 111 de maillons 100. Ces jeux 111 sont répartis sur la longueur L de la lame 1. Leurs nombres et/ou leurs positions sont adaptés à la configuration géométrique et dimensionnelle de la lame de déneigement. En particulier, deux jeux 111 sont prévus en partie centrale de la lame 1, au voisinage de la zone de fixation 6 de la lame 1 sur un véhicule.Here, the blade 1, visible in its entirety at the figure 1 is equipped with six sets 111 of links 100. These sets 111 are distributed along the length L of the blade 1. Their numbers and / or their positions are adapted to the geometric and dimensional configuration of the snow plow. In particular, two sets 111 are provided in the central part of the blade 1, in the vicinity of the attachment zone 6 of the blade 1 on a vehicle.

Comme cela ressort particulièrement des figures 2 à 4, la mise en mouvement des jeux 111 de maillons 100 est obtenue par au moins un jeu de biellettes 120. Ici, deux jeux de biellettes 120 sont prévus. Ils sont montés sur les jeux 111 de maillons 100 situés entre les jeux 111 en partie centrale et les jeux 111 situés au plus près des extrémités de la alem 1. En d'autres termes, les biellettes 120 sont montées globalement en position médiane sur la demi-longueur de la lame 1. On conçoit que la position et/ou le nombre de biellettes 120 est adapté à la lame 1 afin de pouvoir effectuer un mouvement équilibré, continu et avec un minimum d'effort des segments 8. Le terme biellette doit être compris dans sa définition générale, à savoir une pièce métallique qui est articulée à ses extrémités sur deux pièces mobiles et qui transmet, en le modifiant ou pas, à l'une le mouvement de l'autre. Les biellettes 120 ont, dans l'exemple, une forme en T. Elles sont fixées par une extrémité d'une branche à un point fixe sur le corps 2 de la alem 1, par une autre extrémité de branche à une plaque d'articulation 121 solidaire d'un maillon 100 et par la troisième extrémité, à la tige de poussée 160 d'un vérin 161.As is particularly apparent from Figures 2 to 4 the set 111 of the links 111 is set in motion by at least one set of links 120. Here, two sets of links 120 are provided. They are mounted on the games 111 of links 100 located between the games 111 in the central part and the games 111 located closer to the ends of the alem 1. In other words, the rods 120 are mounted generally in the middle position on the half-length of the blade 1. It is conceivable that the position and / or the number of rods 120 is adapted to the blade 1 in order to be able to perform a balanced, continuous movement with a minimum of effort segments 8. The term rod must be understood in its general definition, namely a metal piece which is articulated at its ends on two moving parts and which transmits, modifying or not, to one the movement of the other. The links 120 have, in the example, a T shape. They are fixed by one end of a branch to a fixed point on the body 2 of the alem 1, by another branch end to a hinge plate 121 secured to a link 100 and the third end, to the push rod 160 of a cylinder 161.

Ici, deux vérins 161 disposés de part et d'autre de l'organe de fixation 6 de la lame 1 sur un véhicule assurent la manoeuvre. En variante, le nombre et/ou la position des vérins 161 sont différents. De ce fait, un mouvement de translation selon la double flèche F du vérin 161 génère un mouvement de rotation selon la double flèche F1 de la biellette 120 et donc induit un déplacement de l'extrémité libre 70 du la partie supérieure 7 de la lame 1 selon la double flèche F2. Ce mouvement déplace les maillons 100, par variation du rayon de courbure R de la concavité C. En d'autres termes, on courbe ainsi plus ou moins, de façon réglable et continue la partie articulée 7 de la lame de déneigement.Here, two cylinders 161 arranged on either side of the fastener 6 of the blade 1 on a vehicle provide the maneuver. Alternatively, the number and / or position of the cylinders 161 are different. As a result, a translation movement along the double arrow F of the jack 161 generates a rotational movement along the double arrow F1 of the rod 120 and thus induces a displacement of the free end 70 of the upper part 7 of the blade 1 according to the double arrow F2. This movement moves the links 100, by variation the curvature radius R of the concavity C. In other words, the articulated portion 7 of the snow plow is curved more or less in an adjustable and continuous manner.

Les figures 3 et 4 illustrent deux positions proches des points morts de l'extrémité libre 70 de la partie 7 courbée de la lame 1. A la figure 3, la courbure est maximale, donc le rayon de courbures R est minimal. Dans ce cas, la course du vérin 161 est maximale, les biellettes 120 repoussant les maillons 100, donc les segments 8, en direction du bord inférieur 4 de la lame 1. Typiquement, le rayon R est généralement compris entre 0,25 m et 0,35 m dans cette configuration. Lorsque la lame 1 est dans cette configuration, l'épaisseur de neige présente sur la voie de circulation et qu'il convient d'évacuer est inférieure à 0,15 m. La courbure C de la partie articulée 7 de la lame 1 permet de renvoyer la neige vers voie de circulation et donc de permettre à la lame 1 de repousser la neige, cela en maintenant une vitesse d'avance du véhicule relativement rapide, à savoir en général compris entre 40 km/h et 55 km/h.The Figures 3 and 4 illustrate two positions close to the dead spots of the free end 70 of the curved portion 7 of the blade 1. figure 3 , the curvature is maximum, so the radius of curvature R is minimal. In this case, the stroke of the cylinder 161 is maximum, the rods 120 pushing the links 100, so the segments 8, towards the lower edge 4 of the blade 1. Typically, the radius R is generally between 0.25 m and 0.35 m in this configuration. When the blade 1 is in this configuration, the snow depth present on the taxiway and to be evacuated is less than 0.15 m. The curvature C of the hinged portion 7 of the blade 1 makes it possible to return the snow to the traffic lane and thus to allow the blade 1 to push back the snow, while maintaining a relatively fast forward speed of the vehicle, namely in general between 40 km / h and 55 km / h.

La figure 4 représente la lame 1 avec la partie articulée 7 au minimum de courbure, donc avec un rayon de courbure R maximal, le vérin 161 ayant une course minimale. Dans cette position, on éloigne les segments 8 du bord 4 de la lame 1. Typiquement, le rayon de courbure R est compris entre 0,50 m et 0,60 m. Dans ce cas, la lame 1 repousse la neige lorsque celle-ci est présente sur une voie de circulation sur une épaisseur relativement importante, à savoir comprise généralement entre 0,15 m et 0,70 m. Dans ce cas, La vitesse d'avance du véhicule est relativement faible, compte tenu de la quantité importante de neige à évacuer. Dans une telle configuration, l'avance du véhicule est typiquement comprise entre 10 km/h et 40 km/h.The figure 4 represents the blade 1 with the articulated portion 7 at the minimum of curvature, so with a radius of curvature R maximum, the cylinder 161 having a minimum stroke. In this position, the segments 8 are moved away from the edge 4 of the blade 1. Typically, the radius of curvature R is between 0.50 m and 0.60 m. In this case, the blade 1 repels the snow when it is present on a roadway over a relatively large thickness, namely generally between 0.15 m and 0.70 m. In this case, the speed of advance of the vehicle is relatively low, given the large amount of snow to be evacuated. In such a configuration, the vehicle advance is typically between 10 km / h and 40 km / h.

Le passage de la configuration de la figure 3 à celle de la figure 4 s'effectue de manière réversible et continue. Avantageusement, tous les rayons R de courbure entre les rayons minimal et maximal sont possibles. Il suffit pour cela de bloquer la course des vérins 161 à une valeur donnée. Dans un autre mode de réalisation, seules certaines valeurs du rayon de courbure sont possibles. Dans ce cas, la course des vérins 161 s'effectue pas par pas. Selon un mode de réalisation préféré, le mouvement des segments 8 dans un sens ou dans l'autre s'effectue en maintenant constant l'écart entre les segments 8. Dans un autre mode de réalisation, l'écart est variable. Dans ce cas, lorsque la rayon R est minimal, les bords 11 des segments 8 sont plus éloignés les uns des autres que lorsque le rayon de courbure R est maximal. Afin d'éviter le passage de neige entre les segments, des bavettes souples sont montées sur les bords 11 des segments 8.The passage of the configuration of the figure 3 to that of the figure 4 is reversible and continuous. Advantageously, all the radii R of curvature between the minimum and maximum radii are possible. It suffices for this to block the stroke of the cylinders 161 to a given value. In another embodiment, only certain values of the radius of curvature are possible. In this case, the stroke of the cylinders 161 is not step by step. According to a preferred embodiment, the movement of the segments 8 in one direction or the other takes place while keeping the difference between segments 8. In another embodiment, the deviation is variable. In this case, when the radius R is minimal, the edges 11 of the segments 8 are farther apart than when the radius of curvature R is maximum. In order to prevent the passage of snow between the segments, flexible flaps are mounted on the edges 11 of the segments 8.

Dans tous les cas, une lame de déneigement conforme à l'invention offre une hauteur de travail réglable selon les besoins, à savoir selon l'épaisseur de neige présente sur une voie de circulation à dégager. Le réglage de la courbure C de la lame 1 est effectué par le conducteur du véhicule, avantageusement en continu lors du déplacement du véhicule. Le conducteur peut donc adapter en permanence la hauteur de travail utile de la lame de déneigement, sans arrêter le véhicule et sans qu'il soit nécessaire de changer de lame.In all cases, a snow plow according to the invention provides an adjustable working height as required, namely according to the snow depth on a taxiway to clear. The adjustment of the curvature C of the blade 1 is performed by the driver of the vehicle, advantageously continuously during the movement of the vehicle. The driver can therefore continuously adjust the working height of the snow plow, without stopping the vehicle and without having to change the blade.

En variante, la variation du rayon de courbure est associé à un mouvement d'inclinaison vers l'avant ou l'arrière de la lame et/ou un mouvement de pivotement vers la droite ou la gauche de la lame par rapport à l'axe longitudinal du véhicule équipé de la lame, donc par rapport au sens de déplacement du véhicule.Alternatively, the variation of the radius of curvature is associated with a forward or backward tilting movement of the blade and / or a pivoting movement to the right or left of the blade with respect to the axis longitudinal of the vehicle equipped with the blade, so compared to the direction of movement of the vehicle.

De même, l'invention s'applique à tous les types de lames de déneigement, à savoir les lames fixes telles que celle illustrée ici mais aussi aux lames dites transformables ou à étrave. De telles lames sont formées d'au moins deux corps de lames disposés en V, chaque branche du V pouvant, sur certaines lames, être mobile par rapport à l'autre.Likewise, the invention applies to all types of snow plow blades, namely fixed blades such as that illustrated here, but also so-called convertible or bow blades. Such blades are formed of at least two blade bodies arranged in a V, each branch of the V being able, on some blades, to be movable relative to the other.

Dans d'autres modes de réalisation de l'invention non illustrés, le bord inférieur de la lame de déneigement est équipé d'un organe métallique supplémentaire, mobile, adapté pour passer, en position de travail, sous la partie 4 et pour racler la neige durcie ou la glace. Une telle lame est dite bi-raclage. L'invention s'applique également aux lames dites tri-raclage. Dans ce cas, il y a un balayage supplémentaire par un volet fixe positionné à l'arrière du volet de bi-raclage.In other embodiments of the invention not illustrated, the lower edge of the snow plow is equipped with an additional metal member, movable, adapted to pass, in working position, under part 4 and to scrape the blade. hard snow or ice. Such a blade is called bi-scraping. The invention also applies to so-called tri-scraping blades. In this case, there is an additional sweep by a fixed flap positioned at the rear of the bi-scraping flap.

Dans tous les cas, la courbure de la lame s'effectue soit à l'arrêt soit en mouvement lors du déplacement du véhicule porteur de la lame, quel que soit le type et les dimensions de cette dernière.In all cases, the curvature of the blade is either stopped or in motion during the displacement of the carrier vehicle of the blade, regardless of the type and dimensions of the latter.

Dans un autre mode de réalisation non illustré, la mise en mouvement des segments 8 est obtenue par des maillons configurés en double losange. Des pattes comportent des lumières dans lesquelles se déplacent des arbres, sous l'action de cames actionnées par des vérins. Le déplacement des pattes induit le mouvement des maillons dans lesquelles elles sont disposées.In another embodiment not illustrated, the motion of the segments 8 is obtained by links configured in double rhombus. Legs have lights in which trees move, under the action of cams actuated by cylinders. The displacement of the legs induces the movement of the links in which they are arranged.

En variante, le déplacement des maillons est réalisé par un dispositif de type crémaillère, avec une tige filetée ou encore par un dispositif de type pantographe.Alternatively, the movement of the links is achieved by a rack-type device, with a threaded rod or by a pantograph type device.

Claims (10)

Lame de déneigement (1) comportant une face (3) adaptée pour être en contact avec la neige à évacuer d'une voie de circulation, ladite face (3) comportant au moins une partie concave (C) selon la plus grande dimension (L) de la lame (1), également dénommée largeur de la lame, l'ouverture de la partie concave (C) étant orientée vers la neige à évacuer de la voie de circulation enneigée lorsque la lame de déneigement (1) est en configuration d'utilisation, caractérisée en ce que la lame (1) comprend un corps principal (2) plan et, en partie supérieure du corps (2), une partie (7) concave équipée d'un moyen (8, 161, 111, 120, 121) de variation du rayon de courbure (R) de la concavité (C) de la partie (7) et en ce que ledit moyen de variation du rayon de courbure (R) de la concavité (C) comprend au moins deux segments (8) articulés (110).Snow blade (1) comprising a face (3) adapted to be in contact with the snow to be evacuated from a traffic lane, said face (3) comprising at least one concave part (C) according to the largest dimension (L ) of the blade (1), also called width of the blade, the opening of the concave portion (C) being directed towards the snow to be evacuated from the snow-covered lane when the snow blade (1) is in the configuration of d use, characterized in that the blade (1) comprises a main body (2) plane and, in the upper part of the body (2), a concave portion (7) equipped with a means (8, 161, 111, 120 , 121) of variation of the radius of curvature (R) of the concavity (C) of the part (7) and in that said means of variation of the radius of curvature (R) of the concavity (C) comprises at least two segments (8) articulated (110). Lame selon la revendication 1, caractérisée en ce que les segments (8) sont parallèles entre eux et définissent la plus grande dimension (L) de la lame de déneigement (1).Blade according to claim 1, characterized in that the segments (8) are parallel to each other and define the largest dimension (L) of the snow plow (1). Lame selon la revendication 2, caractérisée en ce que chaque segment (8) est monobloc et s'étend sur toute la plus grande dimension (L) de la lame de déneigement (1).Blade according to claim 2, characterized in that each segment (8) is integral and extends over the largest dimension (L) of the snow plow (1). Lame selon la revendication 1, caractérisée en ce qu'au moins un organe de variation (111, 110, 120, 161) du rayon de courbure (R) de la concavité (C) est fixé sur une face (12) des segments (8).Blade according to Claim 1, characterized in that at least one variation member (111, 110, 120, 161) of the radius of curvature (R) of the concavity (C) is fixed on one face (12) of the segments ( 8). Lame selon la revendication 1, caractérisée en ce que les segments (8) sont mobiles autour d'arbres (110) d'articulation parallèles à la plus grande dimension (L) de la lame de déneigement (1).Blade according to claim 1, characterized in that the segments (8) are movable about parallel shafts (110) parallel to the largest dimension (L) of the snow plow (1). Lame selon la revendication 5, caractérisée en ce que le mouvement de pivotement (F1, F2) des segments (8) autour des arbres (110) d'articulation est réalisé par au moins un jeu (111) de maillons (100) mis en mouvement par au moins une biellette (120) et un vérin (161).Blade according to Claim 5, characterized in that the pivoting movement (F1, F2) of the segments (8) around the articulation shafts (110) is carried out by at least one set (111) of links (100) set in movement by at least one link (120) and a cylinder (161). Lame selon la revendication 5, caractérisée en ce que le mouvement de pivotement (F1, F2) des segments (8) autour des arbres (110) d'articulation est réalisé par au moins un jeu (111) de maillons (100) mis en mouvement par au moins un dispositif de type crémaillère et un vérin (161).Blade according to Claim 5, characterized in that the pivoting movement (F1, F2) of the segments (8) around the articulation shafts (110) is carried out by at least one set (111) of links (100) set in movement by at least one rack-type device and a jack (161). Lame selon la revendication 5, caractérisée en ce que le mouvement de pivotement (F1, F2) des segments (8) autour des arbres (110) d'articulation est réalisé par au moins un jeu (111) de maillons (100) mis en mouvement par au moins un dispositif de type pantographe et un vérin (161).Blade according to Claim 5, characterized in that the pivoting movement (F1, F2) of the segments (8) around the articulation shafts (110) is carried out by at least one set (111) of links (100) set in movement by at least one pantograph type device and a jack (161). Lame selon la revendication 5, caractérisée en ce que le mouvement de pivotement (F1, F2) des segments (8) autour des arbres (110) d'articulation s'effectue à écartement constant entre les segments (8).Blade according to Claim 5, characterized in that the pivoting movement (F1, F2) of the segments (8) around the articulation shafts (110) takes place at a constant distance between the segments (8). Lame selon la revendication 5, caractérisée en ce que le mouvement de pivotement (F1, F2) des segments (8) autour des arbres (110) d'articulation s'effectue à écartement variable entre les segments (8).Blade according to Claim 5, characterized in that the pivoting movement (F1, F2) of the segments (8) around the articulation shafts (110) is effected with variable spacing between the segments (8).
EP19164956.5A 2018-03-27 2019-03-25 Snow-removal blade with variable working height Active EP3546653B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1852618A FR3079536B1 (en) 2018-03-27 2018-03-27 SNOW BLADE WITH VARIABLE WORKING HEIGHT

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EP3546653A1 true EP3546653A1 (en) 2019-10-02
EP3546653B1 EP3546653B1 (en) 2021-05-19

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FR (1) FR3079536B1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1926011A (en) 1932-02-06 1933-09-05 Maine Steel Products Company Snowplow
US4254564A (en) * 1979-08-30 1981-03-10 C.E.P. Industries Limited Reversible snowplow attachment
WO1994029529A1 (en) 1993-06-11 1994-12-22 Gebr. Zaugg Ag Snowplough
WO2006040397A1 (en) 2004-10-11 2006-04-20 Patria Vammas Oy A blade for a snow plough
CA2590217A1 (en) * 2007-06-13 2008-12-13 Sylvain Charette Expandable snow plow blade
WO2014203143A1 (en) 2013-06-18 2014-12-24 Giletta S.P.A. A snow-plough blade group for absorbing lateral impacts

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1926011A (en) 1932-02-06 1933-09-05 Maine Steel Products Company Snowplow
US4254564A (en) * 1979-08-30 1981-03-10 C.E.P. Industries Limited Reversible snowplow attachment
WO1994029529A1 (en) 1993-06-11 1994-12-22 Gebr. Zaugg Ag Snowplough
WO2006040397A1 (en) 2004-10-11 2006-04-20 Patria Vammas Oy A blade for a snow plough
CA2590217A1 (en) * 2007-06-13 2008-12-13 Sylvain Charette Expandable snow plow blade
WO2014203143A1 (en) 2013-06-18 2014-12-24 Giletta S.P.A. A snow-plough blade group for absorbing lateral impacts

Also Published As

Publication number Publication date
FR3079536A1 (en) 2019-10-04
EP3546653B1 (en) 2021-05-19
FR3079536B1 (en) 2020-09-04

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