EP3546653B1 - Snow-removal blade with variable working height - Google Patents
Snow-removal blade with variable working height Download PDFInfo
- Publication number
- EP3546653B1 EP3546653B1 EP19164956.5A EP19164956A EP3546653B1 EP 3546653 B1 EP3546653 B1 EP 3546653B1 EP 19164956 A EP19164956 A EP 19164956A EP 3546653 B1 EP3546653 B1 EP 3546653B1
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- EP
- European Patent Office
- Prior art keywords
- blade
- snow
- segments
- curvature
- radius
- 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.)
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- 239000002184 metal Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 238000007790 scraping Methods 0.000 description 3
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 241001609370 Puschkinia scilloides Species 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H5/00—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
- E01H5/04—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 is meant a part of elongated shape, 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 traffic lane on at least one side of the lane. Such a blade is generally mounted on a device making it possible to position it as close as possible to the traffic lane, so as to ensure maximum snow removal to bring the traffic lane as dark as possible.
- US 4 254 564 A discloses a blade according to the preamble of claim 1.
- the snow plow blade initially mounted on the vehicle may turn out, at least temporarily, to be unsuitable.
- the angle of attack of the blade is defined here as being the angle formed between the direction of movement of the vehicle and the main plane of the blade.
- 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 to the sides of the traffic lane but falls onto the lane.
- one side of the blade designated as the upper edge, and which corresponds to the side of the blade furthest from the traffic lane, is concave along the largest dimension of the blade. The opening of the concavity is oriented in the direction of the snow to be evacuated.
- the upper edge picks up the snow, like a spoon, and brings it back to the front and the bottom of the blade.
- the snow is oriented towards the blade and the release of the snow from being pushed by the blade is optimized as much as possible.
- the concave upper edge due to its curvature, behaves like a hook in the snow and hinders the advance of the blade. snow clearing vehicle.
- WO-A-9429529 a two-part snow plow in the vertical direction. The upper part is articulated with respect to the lower part.
- US-A-1926011 describes a snow plow with a fixed upright and two parts, upper and lower, movable on this upright so as to vary the radius of curvature of the blade.
- WO-A-2006/040397 also discloses a snow plow with a movable upper part so as to vary the radius of curvature of the blade. Such blades nevertheless offer limited possibilities for varying the curvature.
- the invention more particularly intends to remedy by proposing a snow plow that can be used regardless of the depth of snow on the traffic lane to be cleared.
- the invention relates to a snow plow comprising a face adapted to be in contact with the snow to be evacuated from a traffic lane, said face comprising at least one concave part along the largest dimension of the blade, also called the width of the blade, the opening of the concave part being oriented towards the snow to be evacuated from the snow-covered traffic lane when the snow plow is in configuration of use, characterized in that the blade comprises a planar main body and, in the upper part of the body, a concave part equipped with a means for varying the radius of curvature of the concavity of the part and in that said means of 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 and flat main body 2, at least on one face 3 called the front face and intended to be in contact with the snow when the blade 1 is used to clear snow from a traffic lane, not shown.
- the body 2 is, in the example, made of a metallic material. He understands, in the lower part looking at the figure 1 , a first part 4, rectilinear, intended to be as close as possible to the traffic lane when the blade 1 is used for clearing snow.
- part 4 also referred to hereinafter as being the lower edge of blade 1, is made of a material suitable for not damaging the traffic path when blade 1 is resting thereon.
- part 4 is made of polymers, for example of rubber or polyurethane. Such a part 4 can be mounted removably, in order to allow its change in the event of wear.
- the rear face 5 of the main body 2, opposite the face 3, is provided with fixing means 6, known per se, of 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 make it possible to raise, lower and angularly orient the blade 1 with respect to the ground and to the direction of movement of the vehicle which carries the blade 1.
- the control means 60 are managed from the cabin of the vehicle by the driver.
- This part 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, therefore towards the front of the blade 1 and, de facto, towards the snow when the blade 1 is used to clear snow from a traffic lane.
- Part 7, also designated hereinafter as being the upper edge of 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 plates 10 of polymers, for example plates 10 of HDPE (high density polyethylene) or PU (polyurethane).
- the segments 8 are mono-material, it being understood that they can be made of polymers, metal or a composite material.
- Each of the segments 8 is in one piece over 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 having a length less than half a length. of the snow plow.
- the segments 8 are arranged parallel to each other and to the width L of the blade 1. More precisely, 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 referred to as being the width L of the blade 1.
- the length L8 of each segment 8 is less than the width L of the blade 1.
- the faces 12, oriented towards 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 with respect to each other, so as to define a portion of a circle situated in the extension of the body 2.
- the body 2, the lower 4 and upper 7 parts define a profile hooked to the blade 1.
- the segments 8 are therefore arranged so as to configure a rounded upper edge 7 of the blade, the curvature being defined by the circular arc arrangement of the segments 8.
- the segments 8 define an open volume with a rounded bottom. , or chute, and the opening of which is oriented towards the front of the blade 1 defined by the face 3 of the blade 1.
- 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 the 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 include links 100.
- the links 100 have an elongated geometric shape, generally in an openwork 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 keeping the tabs 100 parallel.
- each link 100 is movable in rotation around 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 full at the figure 1 is equipped with six sets 111 of links 100. These sets 111 are distributed over 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 blade. In particular, two sets 111 are provided in the central part of the blade 1, in the vicinity of the fixing zone 6 of the blade 1 on a vehicle.
- the setting in motion of the sets 111 of links 100 is obtained by at least one set of links 120.
- two sets of links 120 are provided. They are mounted on the sets 111 of links 100 located between the sets 111 in the central part and the sets 111 located as close as possible 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 understood that the position and / or the number of links 120 is adapted to the blade 1 in order to be able to perform a balanced, continuous movement and with a minimum of effort of the segments 8.
- link rod must be understood in its general definition, namely a metal part which is articulated at its ends on two moving parts and which transmits, by modifying it or not, to one the movement of the other.
- the rods 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 an articulation plate 121 integral with a link 100 and by the third end, to the push rod 160 of a jack 161.
- two jacks 161 arranged on either side of the fixing member 6 of the blade 1 on a vehicle ensure the maneuver.
- the number and / or the position of the jacks 161 are different. Therefore, a translational movement along the double arrow F of the cylinder 161 generates a rotational movement along the double arrow F1 of the rod 120 and therefore induces a movement 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 of the radius of curvature R of the concavity C.
- the articulated part 7 of the snow plow is thus curved more or less, in an adjustable and continuous manner.
- the figures 3 and 4 illustrate two positions close to the dead centers of the free end 70 of the curved part 7 of the blade 1.
- the curvature is maximum, therefore the radius of curvatures R is minimal.
- the stroke of the cylinder 161 is maximum, the rods 120 pushing back the links 100, therefore the segments 8, in the direction of 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 articulated part 7 of the blade 1 makes it possible to return the snow to the traffic lane and therefore to allow the blade 1 to push back the snow, this while maintaining a relatively fast forward speed of the vehicle, namely by general between 40 km / h and 55 km / h.
- the figure 4 represents the blade 1 with the articulated part 7 at the minimum curvature, therefore with a maximum radius of curvature R, the jack 161 having a minimum stroke.
- 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 pushes back the snow when the latter is present on a traffic lane over a relatively large thickness, namely generally between 0.15 m and 0.70 m.
- the forward speed of the vehicle is relatively low, given the large amount of snow to be evacuated.
- the advance of the vehicle is typically between 10 km / h and 40 km / h.
- the passage of the configuration of the figure 3 to that of figure 4 is carried out in a reversible and continuous manner.
- all the radii R of curvature between the minimum and maximum radii are possible. It suffices for this to block the stroke of the jacks 161 at a given value. In another embodiment, only certain values of the radius of curvature are possible.
- the stroke of the jacks 161 is carried out step by step. According to a preferred embodiment, the movement of the segments 8 in one direction or the other is carried out while keeping the gap between segments 8. In another embodiment, the difference is variable. In this case, when the radius R is minimum, the edges 11 of the segments 8 are further apart from each other than when the radius of curvature R is maximum. In order to prevent the passage of snow between the segments, flexible mud flaps are mounted on the edges 11 of the segments 8.
- a snow plow according to the invention offers an adjustable working height according to needs, namely according to the depth of snow present on a traffic lane to be cleared.
- the adjustment of the curvature C of the blade 1 is carried out by the driver of the vehicle, advantageously continuously while the vehicle is moving. The driver can therefore permanently adapt the useful working height of the snow plow, without stopping the vehicle and without having to change the blade.
- the variation in the radius of curvature is associated with a forward or backward tilting movement of the blade and / or a right or left pivoting movement of the blade relative to the axis. longitudinal of the vehicle fitted with the blade, therefore in relation to the direction of movement of the vehicle.
- the invention applies to all types of snow-clearing blades, namely fixed blades such as the one illustrated here but also to so-called transformable 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 the working position, under part 4 and to scrape the hard snow or ice.
- a blade is called bi-scraping.
- the invention also applies to so-called tri-scraping blades. In this case, there is an additional sweeping by a fixed flap positioned at the rear of the bi-scraping flap.
- the setting in motion of the segments 8 is obtained by links configured as a double rhombus.
- Legs include lights in which the shafts move, under the action of cams actuated by jacks. The movement of the legs induces the movement of the links in which they are arranged.
- the movement of the links is carried out by a device of the rack type, with a threaded rod or even by a device of the pantograph type.
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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)
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
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 track to be cleared and depending on the height - and therefore the quantity - of snow present on the track, more or less long, more or less high and / or more or less concave blades are used. In addition, some blades are V-shaped, thus acting as a wedge to push snow simultaneously in the direction of both sides of the lane. There are therefore several types of blades suitable for various snow removal conditions.
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 change of blade, in snow clearing conditions, is not easy if 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
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 more particularly intends to remedy by proposing a snow plow that can be used regardless of the depth of snow on the traffic lane to be cleared.
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.To this end, the invention relates to a snow plow comprising a face adapted to be in contact with the snow to be evacuated from a traffic lane, said face comprising at least one concave part along the largest dimension of the blade, also called the width of the blade, the opening of the concave part being oriented towards the snow to be evacuated from the snow-covered traffic lane when the snow plow is in configuration of use, characterized in that the blade comprises a planar main body and, in the upper part of the body, a concave part equipped with a means for varying the radius of curvature of the concavity of the part and in that said means of 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, therefore, de facto, we produce a snow plow at variable height, therefore with a useful working height, therefore of snow removal, variable according to the depth of snow on the road.
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.
- the segments are parallel to each other and define the largest dimension of the snow plow.
- Each segment is in one piece and extends over the fullest dimension of the snow plow.
- At least one member for varying the radius of curvature of the concavity is fixed to one face of the segments.
- The segments are movable around articulation shafts parallel to the longest dimension of the snow plow blade.
- The pivoting movement of the segments around the articulation shafts is produced by at least one set of links set in motion by at least one link and one jack.
- The pivoting movement of the segments around the articulation shafts is produced 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 produced by at least one set of links set in motion by at least one pantograph-type device and a jack.
- The pivoting movement of the segments around the articulation shafts takes place at constant spacing between the segments.
- The pivoting movement of the segments around the articulation shafts is effected 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 lafigure 1 , - la
figure 3 est une vue de côté selon la flèche III et à une autre échelle de la lame de lafigure 1 , dans une configuration illustrant une hauteur de travail minimale de la lame et - la
figure 4 est une vue similaire à lafigure 3 , illustrant une configuration où la hauteur de travail de la lame est maximale.
- 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 part of the blade of thefigure 1 , - the
figure 3 is a side view according to arrow III and on another scale of the blade of thefigure 1 , in a configuration illustrating a minimum working height of the blade and - the
figure 4 is a view similar to thefigure 3 , illustrating a configuration where the working height of the blade is maximum.
La
Le corps 2 est, dans l'exemple, en matériau métallique. Il comprend, en partie basse en regardant la
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
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
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.
Comme cela ressort des
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, oriented towards the rear of the
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
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.Maintaining the
Les organes de variation 13 sont particulièrement visibles à la
Ici, la lame 1, visible en entier à la
Comme cela ressort particulièrement des
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 manœuvre. 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
Les
La
Le passage de la configuration de la
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 offers an adjustable working height according to needs, namely according to the depth of snow present on a traffic lane to be cleared. The adjustment of the curvature C of the
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 in the radius of curvature is associated with a forward or backward tilting movement of the blade and / or a right or left pivoting movement of the blade relative to the axis. longitudinal of the vehicle fitted with the blade, therefore in relation 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-clearing blades, namely fixed blades such as the one illustrated here but also to so-called transformable 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 shown, the lower edge of the snow plow is equipped with an additional metal member, movable, adapted to pass, in the working position, under
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 takes place either when stationary or in motion during the displacement of the vehicle carrying 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 setting in motion of the
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.As a variant, the movement of the links is carried out by a device of the rack type, with a threaded rod or even by a device of the pantograph type.
Claims (9)
- A snow-removal blade (1) having a face (3) for coming into contact with the snow to be removed from a traffic lane, said face (3) comprising at least one concave part (C) along the largest dimension (L) of the blade (1), also referred to as the width of the blade, the opening of the concave part (C) facing the snow to be removed from the snow-covered traffic lane when the snow-removal blade (1) is in a use configuration, the blade (1) comprising a flat main body (2) and, in the upper part of the body (2), a concave part (7), characterised in that the concave part is equipped with a means (8, 161, 111, 120, 121) for varying the radius of curvature (R) of the concavity (C) of the part (7), and in that said means for varying the radius of curvature (R) of the concavity (C) comprises at least two articulated (110) segments (8), the segments (8) being mutually parallel and defining the largest dimension (L) of the snow-removal blade (1).
- The blade according to Claim 1, characterised in that each segment (8) is in one piece and extends over the entire largest dimension (L) of the snow-removal blade (1).
- The blade according to Claim 1, characterised in that at least one member (111, 110, 120, 161) for varying the radius of curvature (R) of the concavity (C) is fixed to one face (12) of the segments (8).
- The blade according to Claim 1, characterised in that the segments (8) are movable around articulation shafts (110) parallel to the largest dimension (L) of the snow-removal blade (1).
- The blade according to Claim 4, characterised in that the pivoting movement (F1, F2) of the segments (8) around the articulation shafts (110) is produced by at least one set (111) of links (100) set in motion by at least one connecting rod (120) and a cylinder (161).
- The blade according to Claim 4, characterised in that the pivoting movement (F1, F2) of the segments (8) around the articulation shafts (110) is produced by at least one set (111) of links (100) set in motion by at least one rack-type device and a cylinder (161).
- The blade according to Claim 4, characterised in that the pivoting movement (F1, F2) of the segments (8) around the articulation shafts (110) is produced by at least one set (111) of links (100) set in motion by at least one pantograph-type device and a cylinder (161).
- The blade according to Claim 4, characterised in that the pivoting movement (F1, F2) of the segments (8) around the articulation shafts (110) takes place at constant spacing between the segments (8).
- The blade according to Claim 4, characterised in that the pivoting movement (F1, F2) of the segments (8) around the articulation shafts (110) takes place with variable spacing between the segments (8).
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 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3546653A1 EP3546653A1 (en) | 2019-10-02 |
EP3546653B1 true EP3546653B1 (en) | 2021-05-19 |
Family
ID=62017578
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19164956.5A Active EP3546653B1 (en) | 2018-03-27 | 2019-03-25 | Snow-removal blade with variable working height |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3546653B1 (en) |
FR (1) | FR3079536B1 (en) |
Family Cites Families (6)
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 |
AU6372794A (en) * | 1993-06-11 | 1995-01-03 | Gebr. Zaugg Ag | Snowplough |
FI116800B (en) * | 2004-10-11 | 2006-02-28 | Patria Vammas Oy | Wing for a snow plow |
CA2590217A1 (en) * | 2007-06-13 | 2008-12-13 | Sylvain Charette | Expandable snow plow blade |
ITBO20130304A1 (en) | 2013-06-18 | 2014-12-19 | Assaloni Com S R L | SNOW BLADE GROUP WITH VARIABLE SNOW REMOVAL SURFACE FOR THE ABSORPTION OF SIDE SHOCKS |
-
2018
- 2018-03-27 FR FR1852618A patent/FR3079536B1/en not_active Expired - Fee Related
-
2019
- 2019-03-25 EP EP19164956.5A patent/EP3546653B1/en active Active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
FR3079536A1 (en) | 2019-10-04 |
FR3079536B1 (en) | 2020-09-04 |
EP3546653A1 (en) | 2019-10-02 |
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