EP3625392A1 - Système de protection contre l'usure de la lame de déneigement d'un chasse-neige - Google Patents

Système de protection contre l'usure de la lame de déneigement d'un chasse-neige

Info

Publication number
EP3625392A1
EP3625392A1 EP19749211.9A EP19749211A EP3625392A1 EP 3625392 A1 EP3625392 A1 EP 3625392A1 EP 19749211 A EP19749211 A EP 19749211A EP 3625392 A1 EP3625392 A1 EP 3625392A1
Authority
EP
European Patent Office
Prior art keywords
clearing
wear
blade
reinforcing elements
lower edge
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
EP19749211.9A
Other languages
German (de)
English (en)
Other versions
EP3625392B1 (fr
Inventor
Roland KÜPER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kueper GmbH and Co KG
Original Assignee
Kueper GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kueper GmbH and Co KG filed Critical Kueper GmbH and Co KG
Publication of EP3625392A1 publication Critical patent/EP3625392A1/fr
Application granted granted Critical
Publication of EP3625392B1 publication Critical patent/EP3625392B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • E01H5/061—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 by scraper blades
    • 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
    • E01H5/066—Snow-plough blade accessories, e.g. deflector plates, skid shoes

Definitions

  • the invention relates to a wear protection arrangement for the snow plow blade, which has a plurality of clearing strips arranged next to one another and fastened with a fastening neck to the lower edge of the blade, on the front side of which plate-shaped reinforcing elements are arranged in wear-prone areas, each of which is arranged from the wear edge the clearing bar extend over the fastening neck thereof, the parts of this wear protection arrangement being connected to one another and to the lower edge of the clearing blade by a screw connection, which on the one hand is an upper one
  • the reinforcement elements disclosed there are each formed as a sandwich, consisting of a wear rubber layer vulcanized between a base plate and a cover plate, into which hard material wear elements can also be embedded if necessary.
  • a particular problem with the attachment of plate-shaped reinforcing elements on the front of clearing bars results from the variety of types that are used Snow plows, in particular due to the differently designed screw connections between the lower edge of their snow blade and the fastening neck of the snow blades. Because of the extremely strong dynamic loads that occur during clearing work, it is absolutely necessary to connect the reinforcement elements on the clearing strips with both the clearing blade and the clearing strip. For this reason, the distances between the bores of the upper bolt connection on the one hand and the bores of the lower bolt connection on the other hand are precisely matched to one another in the known wear protection arrangements of the type mentioned at the outset, which means that specially adapted reinforcement elements must be kept ready for each different type of snow plow.
  • the invention proposes starting from one
  • the reinforcing elements are each produced as one-piece castings from hard cast iron and that the holes provided for the upper screw bolt connection in the reinforcing elements are designed as elongated holes which are widened vertically to the lower edge of the clearing blade.
  • the height of the reinforcing elements above the road surface in the fully assembled state is based exclusively on the lower bolt connection, ie on the ones present in the clearing strips Bores and thus on the clearing bar itself.
  • the fixing of the reinforcing elements can be adapted to the different heights of the holes in the lower edge of the clearing blade depending on the clearing blade type.
  • the orientation of the reinforcing elements exclusively on the clearing bar made possible for the first time by the invention makes it possible for the first time to coordinate the heights of the wear edges of clearing bars and reinforcing elements exactly with one another, regardless of the special features of the clearing blade.
  • the wear endangering the lower bolt connection depends on the angle of attack of the clearing bar in relation to the road surface. With a small angle of attack, at which the surface of the clearing bar runs essentially perpendicular to the street surface, this wear occurs significantly later than with a larger angle of attack. Basically, this wear is of course also dependent on the height of the lower bolt connection above the road surface, which is uncertain in the wear protection arrangements of the type mentioned according to the prior art, depending on the dozer blade type.
  • the height positions of the scraper bars on the one hand and the reinforcement elements on the other hand are constant, it is possible according to an advantageous development of the invention to provide the front sides of the reinforcement elements with departure markings which, depending on the angle of attack of the scraper bars, determine the permissible wear range show from the angle of attack. This can reliably prevent accidents from occurring due to incorrect operation.
  • the manufacture of the reinforcement elements as castings made of hard cast iron finally makes it possible to design the surfaces of the reinforcement elements that come into contact with the snow in a simple manner in such a way that the snow flowing away to the side at high speed does not splash up and thereby the field of vision of the Driver of the snow plow impaired.
  • a particularly advantageous embodiment of the wear protection arrangement according to the invention proposes that the reinforcing elements in the wear area have a thickened central section and flanks that drop off laterally in the direction of the front of the scraper bar.
  • the thickened central section provides a large wear area on the lower edge of the reinforcement elements.
  • the sloping flanks ensure that the snow that quickly slides aside during clearing work does not splash up, but can largely flow off to the side unhindered.
  • Figure 1 perspective mounted on the snow plow blade
  • Wear protection arrangement in a first embodiment, suitable for small angles of attack between 0 ° and 15 °;
  • Figure 2 a vertical section through that shown in Figure 1
  • Figures 3a, 3b, 3c and 3d that used in the wear protection arrangement according to Figure 1
  • Figure 5 a vertical section through that shown in Figure 4
  • 6a, 6b, 6c and 6d that used in the wear protection arrangement according to FIG. 4
  • the snow plow blade is designated by the reference number 1.
  • these clearing bars 2 are fastened next to one another (see FIGS. 1 and 4).
  • these clearing bars 2 each consist of a base plate 3 and a cover plate 4, between which a wear rubber layer 5 is vulcanized.
  • the cover plate 4 is bent in the upper edge region of the scraper bar 2 in the direction of the base plate 3 in such a way that it rests on the base plate 3 and forms in this area together with the base plate 3 a fastening neck 7 with which the scraper bar 2 on the lower edge of the clearing blade 1 is fastened with screws 8.
  • plate-shaped reinforcing elements 9 are mounted in areas particularly exposed to wear, which are each formed as one-piece castings made of hard cast iron.
  • an upper screw bolt connection is first provided, which has at least one screw bolt 10 which is guided through mutually aligned bores in the lower edge of the scraper blade 1, in the fastening neck 7 of the scraper bar 2 and in the reinforcing element 9 is.
  • a lower screw connection is provided with at least one screw bolt 11, which is guided below the lower edge of the clearing blade 1 through mutually aligned bores in the reinforcing element 9 and in the clearing bar 2, the bore in the clearing bar 2 between the wear area and the mounting neck 7 is arranged.
  • the drill holes of the upper bolt connection in the reinforcing elements 9 are designed as elongated holes which are widened vertically to the lower edge of the scraper bar 2.
  • the clearing bar 2 here has a convex bulge 12 which extends over its entire length and which fits precisely into an adapted concave bulge 13 on the rear side of the reinforcing element 9. This results in an optimal hold of the reinforcing element 9 on the scraper bar 2.
  • the reinforcing element 9 has a thickened central section 9a in order to provide a wear surface that is as large and stable as possible, and flanks 9b falling sideways in the direction of the front of the scraper bar 2. During the clearing work, these gently sloping flanks 9b ensure a better lateral outflow of the snow along the clearing bar, thereby avoiding the risk of snow splashing up during clearing work and taking away the view of the driver of the snow plow.
  • FIGS. 4-6 largely corresponds to the exemplary embodiment in FIGS. 1-3. There, however, both the upper screw connection and the lower screw connection are each provided with only one screw and correspond to fewer drill holes. In addition, the wear protection arrangement shown there is provided for angles of attack between 16 ° and 30 °, which results in a correspondingly different position of the exit markings 14.

Landscapes

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

Abstract

L'invention concerne un système de protection contre l'usure de la lame de déneigement d'un chasse-neige, qui présente plusieurs barres de déneigement agencées les unes à côté des autres et fixées au bord inférieur de la lame de déneigement par un collet de fixation, et sur lesquelles sont agencés sur la face avant, dans des parties exposées à l'usure, des éléments de renforcement en forme de plaques qui s'étendent respectivement des bords d'usure de la barre de déneigement jusqu'au-delà de son collet de fixation. Les éléments dudit système de protection contre l'usure sont assemblés les uns aux autres et au bord inférieur de la lame de déneigement par un assemblage vissé qui présente d'une part un assemblage par boulon fileté supérieur comportant au moins un boulon fileté qui traverse des alésages en alignement ménagés dans le bord inférieur de la lame de déneigement, dans le collet de fixation de la barre de déneigement et dans l'élément de renforcement, et d'autre part un assemblage par boulon fileté inférieur comportant au moins un boulon fileté qui, sous le bord inférieur de la lame de déneigement, traverse des alésages en alignement ménagés dans l'élément de renforcement et dans la barre de déneigement, l'alésage ménagé dans la barre de déneigement étant agencé entre sa zone d'usure et son collet de fixation. L'invention est caractérisée en ce que les éléments de renforcement sont produits sous la forme de pièces coulées en fonte trempée et en ce que les alésages servant à l'assemblage par boulon fileté supérieur sont réalisés dans les éléments de renforcement sous la forme de trous oblongs qui sont élargis verticalement par rapport au bord inférieur de la lame de déneigement.
EP19749211.9A 2018-07-20 2019-07-16 Système de protection contre l'usure de la lame de déneigement d'un chasse-neige Active EP3625392B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018117655.4A DE102018117655A1 (de) 2018-07-20 2018-07-20 Verschleißschutzanordnung für den Räumschild eines Schneepfluges
PCT/EP2019/069106 WO2020016220A1 (fr) 2018-07-20 2019-07-16 Système de protection contre l'usure de la lame de déneigement d'un chasse-neige

Publications (2)

Publication Number Publication Date
EP3625392A1 true EP3625392A1 (fr) 2020-03-25
EP3625392B1 EP3625392B1 (fr) 2021-05-19

Family

ID=67539411

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19749211.9A Active EP3625392B1 (fr) 2018-07-20 2019-07-16 Système de protection contre l'usure de la lame de déneigement d'un chasse-neige

Country Status (3)

Country Link
EP (1) EP3625392B1 (fr)
DE (1) DE102018117655A1 (fr)
WO (1) WO2020016220A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3940145B1 (fr) 2020-07-16 2024-03-27 Gestion Pihm Inc. Dispositif de lame de balayage et ensemble de lame de balayage pour un véhicule

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3934654A (en) * 1974-09-06 1976-01-27 Kennametal Inc. Earthworking blade device
DE102013011436A1 (de) * 2013-07-10 2015-01-15 Küper Gmbh & Co. Kg Zweiteiliger Randsteinabweiser
DE102014006274B4 (de) * 2014-05-02 2016-05-25 Küper Gmbh & Co. Kg Randsteinabweiser für den Räumschild eines Schneepfluges
DE102015117001A1 (de) 2015-10-06 2017-04-06 Küper Gmbh & Co. Kg Verschleißschutzanordnung für den Räumschild eines Schneepflugs
US9938678B2 (en) * 2016-07-07 2018-04-10 Lakin General Corporation Plow blade wear member

Also Published As

Publication number Publication date
DE102018117655A1 (de) 2020-01-23
EP3625392B1 (fr) 2021-05-19
WO2020016220A1 (fr) 2020-01-23

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