EP1186715B1 - Snowplough - Google Patents

Snowplough Download PDF

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Publication number
EP1186715B1
EP1186715B1 EP01121248A EP01121248A EP1186715B1 EP 1186715 B1 EP1186715 B1 EP 1186715B1 EP 01121248 A EP01121248 A EP 01121248A EP 01121248 A EP01121248 A EP 01121248A EP 1186715 B1 EP1186715 B1 EP 1186715B1
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EP
European Patent Office
Prior art keywords
connecting rods
snow plow
bearing regions
frame structure
pocket
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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.)
Expired - Lifetime
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EP01121248A
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German (de)
French (fr)
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EP1186715A2 (en
EP1186715A3 (en
Inventor
Uwe Meissner
Georg Engesser
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Schmidt Holding GmbH
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Schmidt Holding GmbH
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Publication of EP1186715A3 publication Critical patent/EP1186715A3/en
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Publication of EP1186715B1 publication Critical patent/EP1186715B1/en
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01HSTREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H5/00Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
    • E01H5/04Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material
    • E01H5/06Apparatus 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
    • E01H5/063Apparatus 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 snow-plough blades tiltable for shock-absorbing purposes

Definitions

  • the present invention relates to a snow plow with a plow share comprising at least one segment and a frame structure, wherein the at least one ploughshare segment is mounted on the frame structure by means of elastically deformable link, wherein the links each have two bearing areas arranged at the end and a deformation region arranged between them ,
  • Snow plows of the aforementioned type are in various versions regularly in winter service in use and thus count by public prior use of the prior art.
  • DE 3311019 C2, DE 3151726 C2 and DE 3603496 C1 also disclose generic snowploughs.
  • the suspension of the ploughshare segments on the frame structure by means of elastically deformable handlebar allows individual ploughshare segments can dodge automatically when hitting ground obstacles.
  • an elastomeric material in particular Vulcollan TM .
  • the storage area of the upper link known from DE 3603496 C1 also has a thickness that is greater than the thickness of the deformation area. This results in the transition area, a widening of the handlebars in the storage areas.
  • the known handlebars used have a flat cuboid storage area.
  • each link arranged at the end can have two through holes through which standing or threaded bolts pass, by means of which the links are fixed (clamped) using generally profiled clamping plates on the frame structure or the associated ploughshare segment.
  • clamping plates on the frame structure or the associated ploughshare segment.
  • variously U-shaped bent plates provided, which are in particular welded to the frame structure and surrounding the bearing areas of the handlebars.
  • the handlebars with their storage areas are formed in the receptacles formed by the U-shaped sheets and placed on the corresponding studs, after which the clamping plate is attached to the studs.
  • the storage areas are squeezed by means of the partially profiled clamping plates for producing a firm connection to the frame structure or the corresponding ploughshare segment, wherein the profiling of the bearing areas enclosing U-shaped plate prevents flow of the material.
  • This object is achieved according to the present invention in that the corresponding expansion in the storage area of the handlebar is enclosed by a corresponding pocket-shaped receptacle.
  • the above-described problem can be solved in a surprisingly simple manner by using such links, whose width and / or thickness in the bearing areas is greater than in the deformation areas, instead of the known flat rectangular bearing areas of the links.
  • the widening of the storage areas formed thereby is surrounded by a corresponding pocket-shaped receptacle, ie a pocket-shaped receptacle which, in terms of its spatial configuration, is adapted to the shape of the widening of the storage area to be accommodated in it.
  • the bearing areas of the links with respect to the deformation areas are not stepped but rather conically widened.
  • the double wedge angle of the corresponding conical widening of the links is particularly preferably between 60 ° and 120 °, with the pocket-shaped receptacles tapering with a corresponding double wedge angle to the deformation regions of the links.
  • the handlebars used in the present invention do not need to have through-holes, which due to their nature mean a weakening of the material and give the handlebars with elastic force absorption an unintended unevenly distributed rigidity.
  • Another preferred embodiment of the invention is characterized in that the links in the storage areas and in the deformation regions have the same thickness. Such links whose expansion in the deformation ranges are limited to the width, can be produced particularly cost-effective from plate material.
  • the pocket-shaped receptacles need in this case in each case (only) a clamp-like peripheral element and a - acting as hold-down cover - to cover the lid with the associated peripheral element which is fixedly connected to the frame structure or the relevant ploughshare segment, solvable connected is.
  • the cover is expediently on the front side on the peripheral element and is screwed to it.
  • Another preferred embodiment of the invention is characterized in that the storage areas are cut at the end, wherein within the pocket-shaped receptacles to the incisions corresponding, are provided in this webs engaging.
  • the respective webs can be Y-shaped.
  • the illustrated in the drawing snow plow comprises a frame structure 1, on which by means of elastically deformable link 2, a plurality of ploughshare segments 3 is mounted variable position.
  • the frame structure 1 is substantially composed of an upper support 4, a lower support 5 and vertical beams 6, which are fixedly connected to the upper beams 4 and the lower beams 5, joined together.
  • the carriers are designed as box girders.
  • the ploughshare segments 3 comprise in known manner in each case a Scharblech 7 and arranged in the region of the lower edge, removably mounted wear rail 8. On the back of the Scharllechs 7 is a stiffening serving structure of vertical ribs 9 and horizontal trusses 10 and 11th intended.
  • Each ploughshare segment 3 is suspended from the frame structure 1 by means of elastically deformable link 2 variable in position.
  • two links 2 each extend between the upper traverse 10 of each ploughshare segment 3 and the upper carrier 4 of the frame structure 1; two further links 2 each extend between the lower crosspiece 11 of each plow share segment 3 and the lower support 5 of the frame structure 1.
  • the handlebars 2 are made of Vulcollan TM . At the end, they each have two bearing areas 12, 13, which serve for fastening to the frame structure 1 or the associated ploughshare segment 3. A deformation region 14 extends between the two bearing regions 12 and 13. If a plow blade segment 3 picks up on an obstacle during the clearing operation, the plow blade segment in question is deflected while deforming the deformation regions 14 of the four associated links 2.
  • the links 2 are distinguished by the fact that their width B, which extends parallel to the supports 4 and 5 of the frame structure 1, is greater in the bearing areas 12 and 13 than the width b in the deformation areas 14.
  • the bearing areas 12 and 13 adjacent to the respective deformation region 14 in the horizontal direction conically widened, wherein the double wedge angle ⁇ of the expansion 15 is 90 °.
  • the bearing areas 12 and 13 and the deformation area 14 have the same thickness D.
  • the storage areas 12 and 13 have recesses 16 arranged at the end. These extend Y-shaped from the end edges 17 of the storage areas in this. Through the incisions 16 of each storage area 12 and 13 is divided into two gripping heads 18.
  • pocket-shaped receptacles 19 For fixing the handlebars 2 to the frame structure 1 and the associated ploughshare segment 3 are pocket-shaped receptacles 19. These comprise each a clip-like peripheral element 20 and a cover 21.
  • the peripheral elements 20 are fixed to one of the carrier 4 and 5 of the frame structure first or one of the trusses 10 and 11 of the ploughshare segments 3 connected, in particular welded.
  • the lid 21 of the pocket-shaped receptacles are detachably screwed onto the peripheral elements 20.
  • the clip-like peripheral elements 20 define in conjunction with the associated cover 21 and the associated carrier 4, 5 and the associated cross member 10, 11 a cavity 22, whose shape corresponds to the shape of the bearing portions 12 and 13 of the link 2.
  • each of the peripheral elements 20 in particular a Y-shaped executed web 23 is formed, which engages in the corresponding recess 16 of the associated storage area 12 and 13 respectively. It is essential, moreover, that the peripheral elements taper in accordance with the widenings 15 of the link 2 in the direction of the respective opening 24.
  • the peripheral elements in this case have adjacent to the respective opening 24 bead-like thickenings 25, which serve in particular the introduction of lateral forces of the ploughshare segments 3 in the handlebars 2 and of these in the frame structure 1, without too much punctual loads, the integrity of the handlebar second to endanger.
  • the cover 21 are each placed on the front side of the associated peripheral element 20.
  • the height h of the peripheral elements 20 corresponds substantially to the thickness D of the link 2, so that when screwing the cover 21 on the peripheral elements 20 no significant squeezing forces are exerted on the handlebars 2.
  • the lid 21 of the pocket-shaped receptacles 19 are bent in the region of the respective opening 24 such that there is an inlet bend.
  • the present invention has been explained above with reference to an embodiment in which the links 2 have a constant thickness D over their entire extent. Merely for the sake of completeness, it should again be pointed out that this is by no means mandatory. Rather, used in the context of the present invention handlebars may well have different thicknesses in their different areas. It is particularly considered that the thickness of the arm 2 in the storage areas 12 and 13 is greater than or smaller than the thickness in the deformation regions 14, wherein the storage areas can be widened conically, in particular also in terms of their thickness.
  • the arms 2 are dimensioned larger in their bearing areas 12 and 13, only with respect to their thickness, but not with respect to their width, than in the deformation areas 14.
  • the expansion of the handlebars in the storage areas by no means mandatory, as applicable to the above-described embodiment, must be conical. Rather, for example, a drop-shaped, semicircular, elliptical or the like. Running widening into consideration, the shape of the pocket-shaped receptacle is adapted to the execution of the expansion.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Soil Working Implements (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
  • Hinges (AREA)

Abstract

The snow plow has a plow share with parts held on a frame structure via elastic connecting rods (2). Each rod has a central deformation section (14) and two end bearing sections (12), which are wider and/or thicker than the deformation section. The transitional parts are each enclosed by a bag-like holder (19). Each holder has a clamp part and a cover, and the clamp part is fastened detachable to the frame resp. the plow share part.

Description

Die vorliegende Erfindung betrifft einen Schneepflug mit einer mindestens ein Segment umfassenden Pflugschar und einer Rahmenstruktur, wobei das mindestens eine Pflugschar-Segment an der Rahmenstruktur mittels elastisch verformbarer Lenker lageveränderbar gelagert ist, wobei die Lenker jeweils zwei endseitig angeordnete Lagerbereiche und einen zwischen diesen angeordneten Verformungsbereich aufweisen.The present invention relates to a snow plow with a plow share comprising at least one segment and a frame structure, wherein the at least one ploughshare segment is mounted on the frame structure by means of elastically deformable link, wherein the links each have two bearing areas arranged at the end and a deformation region arranged between them ,

Schneepflüge der vorstehend genannten Art sind in verschiedenen Ausführungen regelmäßig im Winterdienst im Einsatz und zählen somit durch offenkundige Vorbenutzung zum Stand der Technik. Auch die DE 3311019 C2, DE 3151726 C2 und DE 3603496 C1 offenbaren gattungsgemäße Schneepflüge.Snow plows of the aforementioned type are in various versions regularly in winter service in use and thus count by public prior use of the prior art. DE 3311019 C2, DE 3151726 C2 and DE 3603496 C1 also disclose generic snowploughs.

Die Aufhängung der Pflugschar-Segmente an der Rahmenstruktur mittels elastisch verformbarer Lenker ermöglicht, daß einzelne Pflugschar-Segmente beim Auftreffen auf Bodenhindernisse selbsttätig ausweichen können. Zur Herstellung derartiger elastisch verformbarer Lenker wird verbreitet ein elastomeres Material, insbesondere Vulcollan eingesetzt. Um einen möglichst elastischen Verformungsbereich zu ereichen, weist der Lagerungsbereich des aus der DE 3603496 C1 bekannten oberen Lenkers zudem eine Dicke auf, die größer ist als die Dicke des Verformungsbereichs. Daraus ergibt sich im Übergangsbereich eine Aufweitung des Lenker in den Lagerungsbereichen. Die bekannten eingesetzten Lenker weisen dabei einen flachen quaderförmigen Lagerungsbereich auf. Die beiden endseitig angeordneten Lagerbereiche jedes Lenkers Können zwei Durchgangsbohrungen aufweisen, durch welche Steh- oder Schraubbolzen hindurchtreten, mittels derer die Lenker unter Verwendung von i.a. profilierten Einspannblechen an der Rahmenstruktur bzw. dem zugeordneten Pflugschar-Segment festgelegt (geklemmt) werden. Zur seitlichen Führung der Lenker sind dabei (vgl. DE 3603496 C1 und DE 3151726 C2) verschiedentlich U-förmig gebogene Bleche vorgesehen, die insbesondere mit der Rahmenstruktur verschweißt sind und die Lagerbereiche der Lenker umgeben. Zu Ihrer Montage werden die Lenker mit ihren Lagerbereichen in die durch die U-förmig gebogenen Bleche gebildeten Aufnahmen ein- und auf die entsprechenden Stehbolzen aufgesetzt, wonach das Einspannblech auf die Stehbolzen aufgesteckt wird. Anschließend werden die Lagerbereiche mittels der z.T. profilierten Einspannbleche zur Herstellung einer festen Verbindung zur Rahmenstruktur bzw. dem entsprechenden Pflugschar-Segment gequetscht, wobei die Profilierung des die Lagerbereiche umschließenden U-förmigen Bleches ein Fließen des Materials verhindert.The suspension of the ploughshare segments on the frame structure by means of elastically deformable handlebar allows individual ploughshare segments can dodge automatically when hitting ground obstacles. To produce such elastically deformable handlebar is widely used an elastomeric material, in particular Vulcollan . In order to achieve the most elastic deformation range, the storage area of the upper link known from DE 3603496 C1 also has a thickness that is greater than the thickness of the deformation area. This results in the transition area, a widening of the handlebars in the storage areas. The known handlebars used have a flat cuboid storage area. The two bearing areas of each link arranged at the end can have two through holes through which standing or threaded bolts pass, by means of which the links are fixed (clamped) using generally profiled clamping plates on the frame structure or the associated ploughshare segment. For lateral guidance of the Handlebars are (see DE 3603496 C1 and DE 3151726 C2) variously U-shaped bent plates provided, which are in particular welded to the frame structure and surrounding the bearing areas of the handlebars. For your assembly, the handlebars with their storage areas are formed in the receptacles formed by the U-shaped sheets and placed on the corresponding studs, after which the clamping plate is attached to the studs. Subsequently, the storage areas are squeezed by means of the partially profiled clamping plates for producing a firm connection to the frame structure or the corresponding ploughshare segment, wherein the profiling of the bearing areas enclosing U-shaped plate prevents flow of the material.

Wenngleich die bekannten Schneepflüge der gattungsgemäßen Art im großen und ganzen durchaus in zufriedenstellender Weise funktionieren, so erweist sich in der Praxis doch als nachteilig, daß die einzelnen Pflugschar-Segmente bereits nach kurzem Räumbetrieb nicht (mehr) ideal zueinander ausgerichtet sind und/oder nicht (mehr) ihre ideale Stellung zur zu räumenden Fahrbahnoberfläche einnehmen. Vielmehr läßt sich beim praktischen Einsatz bekannter gattungsgemäßer Schneepflüge beobachten, daß das Räumergebnis unter einer Fehlausrichtung der einzelnen Pflugschar-Segmente zueinander und zur zu räumenden Fahrbahnoberfläche leidet.Although the well-known snow plows of the generic type on the whole work quite satisfactorily, it proves to be disadvantageous in practice that the individual ploughshare segments are not (ideally) ideally aligned with each other after a short clearing operation and / or not ( more) take their ideal position to be cleared road surface. Rather, it can be observed in the practical use of known generic snowploughs that the clearing result suffers from a misalignment of the individual ploughshare segments to each other and to be cleared road surface.

Hieraus leitet sich die der vorliegenden Erfindung zugrundeliegende Aufgabenstellung ab, die darin besteht, einen Schneepflug der gattungsgemäßen Art zu schaffen, bei welchem die Pflugschar-Segmente auch im praktischen Einsatz ihre optimale Ausrichtung zueinander und ihre optimale Stellung zur zu räumenden Fahrbahnoberfläche beibehalten bzw. nach dem Überfahren eines Hindernisses wieder einnehmen.From this is derived from the present invention underlying task, which is to provide a snow plow of the generic type, in which the ploughshare segments in the Practical use to maintain their optimal alignment with each other and their optimal position to be cleared road surface or resume after crossing an obstacle.

Gelöst wird diese Aufgabe gemäß der vorliegenden Erfindung dadurch, daß die entsprechende Aufweitung im Lagerungsbereich der lenker von einer korrespondierenden taschenförmigen Aufnahme umschlossen ist. Das vorstehend erläuterte Problem läßt sich mit anderen Worten auf überraschend einfache Weise dadurch lösen, daß statt der bekannten flachen quaderförmigen Lagerungsbereichen der Lenker solche Lenker zum Einsatz kommen, deren Breite und/oder Dicke in den Lagerbereichen größer ist als in den Verformungsbereichen; die hierdurch gebildete Aufweitung der Lagerbereiche ist von einer korrespondierenden taschenförmigen Aufnahme, d.h. einer taschenförmigen Aufnahme, die hinsichtlich ihrer räumlichen Gestaltung an die Form der Aufweitung des in ihr aufzunehmenden Lagerbereichs angepaßt ist, umschlossen. Auch nach einem extrem rauhen praktischen Einsatz lassen sich bei Schneepflügen nach der vorliegenden Erfindung verglichen mit bekannten gattungsgemäßen Schneepflügen nur deutlich geringere Fehlausrichtungen der einzelnen Pflugschar-Segmente zueinander und Fehlstellungen der Pflugschar-Segmente zur zu räumenden Fahrbahnoberfläche feststellen.This object is achieved according to the present invention in that the corresponding expansion in the storage area of the handlebar is enclosed by a corresponding pocket-shaped receptacle. In other words, the above-described problem can be solved in a surprisingly simple manner by using such links, whose width and / or thickness in the bearing areas is greater than in the deformation areas, instead of the known flat rectangular bearing areas of the links. The widening of the storage areas formed thereby is surrounded by a corresponding pocket-shaped receptacle, ie a pocket-shaped receptacle which, in terms of its spatial configuration, is adapted to the shape of the widening of the storage area to be accommodated in it. Even after an extremely harsh practical use can be found in snow plows according to the present invention compared with known generic snow plows only significantly lower misalignments of the individual ploughshare segments each other and misalignments of the ploughshare segments to be cleared road surface.

Indem die hinsichtlich ihrer Breite und/oder Dicke gegenüber den Abmessungen der Verformungsbereiche aufgeweiteten Lagerbereiche der Lenker von einer korrespondierenden taschenförmigen Aufnahme umschlossen sind, bedarf es zum Fixieren der Lenker an dem zugeordneten Pflugschar-Segment bzw. der Rahmenstruktur nicht einer Quetschung der Lagerbereiche. Hierdurch läßt sich eine spannungsfreie Fixierung der Lenker an der Rahmenstruktur und dem zugeordneten Pflugschar-Segment realisieren, wodurch sich als weiterer Vorteil des erfindungsgemäßen Schneepfluges gegenüber dem Stand der Technik eine gesteigerte Lebensdauer der elastisch verformbaren Lenker ergibt.By the expanded in terms of their width and / or thickness relative to the dimensions of the deformation ranges bearing areas of the links are enclosed by a corresponding pocket-shaped receptacle, it does not require fixing the link to the associated ploughshare segment or the frame structure of a pinch of the storage areas. As a result, a tension-free fixation of the handlebars on the frame structure and the associated ploughshare segment can be realized, which results in a further advantage of the snow plow according to the invention over the prior art, an increased life of the elastically deformable handlebars.

Schließlich ergeben sich in Anwendung der vorliegenden Erfindung auch fertigungstechnische Vorteile gegenüber dem Stand der Technik.Finally, in application of the present invention also manufacturing advantages over the prior art.

Im Rahmen der vorliegenden Erfindung erweist es sich als besonders vorteilhaft, wenn die Lagerbereiche der Lenker gegenüber den Verformungsbereichen nicht stufenförmig sondern vielmehr konisch aufgeweitet sind. Der doppelte Keilwinkel der entsprechenden konischen Aufweitung der Lenker beträgt besonders bevorzugt zwischen 60° und 120°, wobei sich die taschenförmigen Aufnahmen mit einem korrespondierenden doppelten Keilwinkel zu den Verformungsbereichen der Lenker hin verjüngen. Bei Verwendung der üblicherweise eingesetzten elastomeren Werkstoffe ergibt sich bei dieser Ausgestaltung des erfindungsgemäßen Schneepfluges bei einer hohen Festigkeit der elastisch verformbaren Lenker ein besonders guter Halt der Lenker innerhalb der taschenförmigen Aufnahmen, wobei durch Zugbeanspruchung gedehnte Lenker bei nachlassender Krafteinwirkung wieder zuverlässig in ihre Ausgangslage zurückkehren.In the context of the present invention, it proves to be particularly advantageous if the bearing areas of the links with respect to the deformation areas are not stepped but rather conically widened. The double wedge angle of the corresponding conical widening of the links is particularly preferably between 60 ° and 120 °, with the pocket-shaped receptacles tapering with a corresponding double wedge angle to the deformation regions of the links. When using the elastomeric materials usually used results in this embodiment of the snow plow invention at a high strength of the elastically deformable handlebars a particularly good grip of the handlebar within the pocket-shaped receptacles, which stretched by tensile stress Handlebars with decreasing force again reliably return to their original position.

Die im Rahmen der vorliegenden Erfindung zum Einsatz kommenden Lenker brauchen keine Durchgangsbohrungen aufzuweisen, die aufgrund ihrer Beschaffenheit eine Schwächung des Materials bedeuten und dem Lenker mit elastischer Kraftaufnahme eine nicht beabsichtigte ungleichmäßig verteilte Starrheit geben.The handlebars used in the present invention do not need to have through-holes, which due to their nature mean a weakening of the material and give the handlebars with elastic force absorption an unintended unevenly distributed rigidity.

Eine andere bevorzugte Weiterbildung der Erfindung zeichnet sich dadurch aus, daß die Lenker in den Lagerbereichen und in den Verformungsbereichen dieselbe Dicke aufweisen. Derartige Lenker, deren Aufweitung in den Verformungsbereichen sich demgemäß auf die Breite beschränkt, lassen sich besonders kostengünstig aus Plattenmaterial herstellen. Zudem ist in diesem Falle auch die Gestaltung der taschenförmigen Aufnahmen mit einem besonders geringen konstruktiven Aufwand verbunden. Insbesondere brauchen die taschenförmigen Aufnahmen in diesem Falle jeweils (lediglich) ein klammerartiges Umfangselement und einen - als Niederhalter wirkenden - Deckel zu umfassen, wobei der Dekkel mit dem zugeordneten Umfangselement, welches mit der Rahmenstruktur bzw. dem betreffenden Pflugschar-Segment fest verbunden ist, lösbar verbunden ist. Der Deckel liegt dabei zweckmäßigerweise stirnseitig auf dem Umfangselement auf und ist mit diesem verschraubt. Indem der Deckel stirnseitig auf dem Umfangselement aufliegt, kann es auch beim übermäßigen Anziehen der Verbindungsschrauben nicht zu einem Quetschen der Lagerbereiche der Lenker und den hiermit verbundenen nachteiligen Folgen (innere Spannungen, Materialermüdung, Fließen) kommen. Ein entsprechendes Resultat läßt sich erreichen, indem andere Distanzelemente vorgesehen werden, die die lichte Höhe der taschenartigen Aufnahme derart vorgeben, daß die Lagerbereiche der Lenker nicht nennenswert gequetscht werden.Another preferred embodiment of the invention is characterized in that the links in the storage areas and in the deformation regions have the same thickness. Such links whose expansion in the deformation ranges are limited to the width, can be produced particularly cost-effective from plate material. In addition, in this case, the design of the pocket-shaped receptacles associated with a particularly low design effort. In particular, the pocket-shaped receptacles need in this case in each case (only) a clamp-like peripheral element and a - acting as hold-down cover - to cover the lid with the associated peripheral element which is fixedly connected to the frame structure or the relevant ploughshare segment, solvable connected is. The cover is expediently on the front side on the peripheral element and is screwed to it. By the lid rests on the peripheral element on the front side, it can not come to a squeezing of the bearing portions of the handlebar and the associated adverse consequences (internal tensions, fatigue, flow) even when tightening the connecting screws. A corresponding result can be achieved by other spacer elements are provided which specify the clear height of the pocket-like receptacle such that the bearing areas of the handlebars are not squeezed appreciable.

Im Rahmen der vorliegenden Erfindung erweist es sich als vorteilhaft, daß die Befestigung der Lenker und Deckel durch versenkte und damit vor korrosiven Medien geschützte Gewinde vorgenommen werden kann, wodurch eine dauerhafte Lösbarkeit der betreffenden Schrauben gewährleistet ist.In the context of the present invention, it proves to be advantageous that the attachment of the handlebars and covers can be made by countersunk and therefore protected from corrosive media thread, whereby a permanent solubility of the screws in question is ensured.

Eine andere bevorzugte Weiterbildung der Erfindung zeichnet sich dadurch aus, daß die Lagerbereiche endseitig eingeschnitten sind, wobei innerhalb der taschenförmigen Aufnahmen zu den Einschnitten korrespondierende, in diese eingreifende Stege vorgesehen sind. Insbesondere können die betreffenden Stege Y-förmig ausgeführt sein. Die "Verzahnung" der Lagerbereiche der Lenker mit den taschenförmigen Aufnahmen durch zueinander korrespondierende, ineinander eingreifende Einschnitte und Stege ergibt eine besonders zuverlässige und dauerhafte Fixierung der Lenker innerhalb der Aufnahmen, indem einem Wandern des Materials der elastisch verformbaren Lenker innerhalb der Aufnahmen bei hohen Beanspruchungen, insbesondere bei hohen Zugkräften entgegengewirkt wird. Als besonders vorteilhaft erweist sich die vorliegende Verzahnung, wenn die Breite der Lenker wesentlich größer ist als deren Dicke.Another preferred embodiment of the invention is characterized in that the storage areas are cut at the end, wherein within the pocket-shaped receptacles to the incisions corresponding, are provided in this webs engaging. In particular, the respective webs can be Y-shaped. The "teeth" of the bearing areas of the handlebars with the pocket-shaped receptacles by mutually corresponding, inter-engaging cuts and webs results in a particularly reliable and permanent fixation of the handlebars within the receptacles by a migration of the material of the elastically deformable handlebars within the receptacles at high loads, is counteracted especially at high tensile forces. Particularly advantageous is the present gearing, if the width of the handlebar is substantially greater than the thickness thereof.

Im Folgenden wird die vorliegende Erfindung anhand eines in der Zeichnung veranschaulichten bevorzugten Ausführungsbeispiels näher erläutert. Dabei zeigt

Fig. 1
in perspektivischer Ansicht schräg von hinten links oben die Rahmenstruktur eines Ausführungsbeispiels eines Schneepfluges nach der vorliegenden Erfindung,
Fig. 2
in perspektivischer Ansicht schräg von hinten links oben ein Pflugschar-Segment und
Fig. 3
in perspektivischer Ansicht einen zur Anlenkung des Pflugschar-Segments gemäß Fig. 2 an der Rahmenstruktur gemäß Fig. 1 geeigneten Lenker.
In the following, the present invention will be explained in more detail with reference to a preferred embodiment illustrated in the drawing. It shows
Fig. 1
in a perspective view obliquely from the rear left above the frame structure of an embodiment of a snow plow according to the present invention,
Fig. 2
in a perspective view obliquely from the rear left above a ploughshare segment and
Fig. 3
in a perspective view for the articulation of the ploughshare segment according to FIG. 2 on the frame structure of FIG. 1 suitable handlebar.

Der in der Zeichnung veranschaulichte Schneepflug umfaßt eine Rahmenstruktur 1, an der mittels elastisch verformbarer Lenker 2 eine Mehrzahl von Pflugschar-Segmenten 3 lageveränderbar gelagert ist. Die Rahmenstruktur 1 ist dabei im wesentlichen aus einem oberen Träger 4, einem unteren Träger 5 und Vertikalträgern 6, welche fest mit den oberen Trägern 4 und den unteren Trägern 5 verbunden sind, zusammengefügt. Die Träger sind dabei als Kastenträger ausgeführt.The illustrated in the drawing snow plow comprises a frame structure 1, on which by means of elastically deformable link 2, a plurality of ploughshare segments 3 is mounted variable position. The frame structure 1 is substantially composed of an upper support 4, a lower support 5 and vertical beams 6, which are fixedly connected to the upper beams 4 and the lower beams 5, joined together. The carriers are designed as box girders.

Die Pflugschar-Segmente 3 umfassen in als solches bekannter Weise jeweils ein Scharblech 7 und eine im Bereich der Unterkante angeordnete, auswechselbar befestigte Verschleißschiene 8. Auf der Rückseite des Scharblechs 7 ist eine der Aussteifung dienende Struktur aus vertikalen Rippen 9 und horizontalen Traversen 10 und 11 vorgesehen.The ploughshare segments 3 comprise in known manner in each case a Scharblech 7 and arranged in the region of the lower edge, removably mounted wear rail 8. On the back of the Scharllechs 7 is a stiffening serving structure of vertical ribs 9 and horizontal trusses 10 and 11th intended.

Jedes Pflugschar-Segment 3 ist an der Rahmenstruktur 1 mittels elastisch verformbarer Lenker 2 lageveränderbar aufgehängt. Hierzu erstrecken sich jeweils zwei Lenker 2 zwischen der oberen Traverse 10 jedes Pflugschar-Segments 3 und dem oberen Träger 4 der Rahmenstruktur 1; jeweils zwei weitere Lenker 2 erstrecken sich zwischen der unteren Traverse 11 jedes Pflugschar-Segments 3 und dem unteren Träger 5 der Rahmenstruktur 1.Each ploughshare segment 3 is suspended from the frame structure 1 by means of elastically deformable link 2 variable in position. For this purpose, two links 2 each extend between the upper traverse 10 of each ploughshare segment 3 and the upper carrier 4 of the frame structure 1; two further links 2 each extend between the lower crosspiece 11 of each plow share segment 3 and the lower support 5 of the frame structure 1.

Die Lenker 2 sind aus Vulcollan gefertigt. Sie weisen endseitig jeweils zwei Lagerbereiche 12, 13 auf, die der Befestigung an der Rahmenstruktur 1 bzw. dem zugeordneten Pflugschar-Segment 3 dienen. Zwischen den beiden Lagerbereichen 12 und 13 erstreckt sich ein Verformungsbereich 14. Trifft beim Räumbetrieb eines der Pflugschar-Segmente 3 auf ein Hindernis auf, so wird das betreffende Pflugschar-Segment unter Verformung der Verformungsbereiche 14 der vier zugeordneten Lenker 2 ausgelenkt.The handlebars 2 are made of Vulcollan . At the end, they each have two bearing areas 12, 13, which serve for fastening to the frame structure 1 or the associated ploughshare segment 3. A deformation region 14 extends between the two bearing regions 12 and 13. If a plow blade segment 3 picks up on an obstacle during the clearing operation, the plow blade segment in question is deflected while deforming the deformation regions 14 of the four associated links 2.

Im Rahmen der vorstehenden Erläuterung entspricht der in der Zeichnung veranschaulichte Schneepflug dem Stand der Technik, so daß es detaillierter Ausführungen nicht bedarf.In the above explanation, the snow plow illustrated in the drawing corresponds to the prior art, so that detailed explanations are not required.

Die Lenker 2 zeichnen sich dadurch aus, daß ihre - sich parallel zu den Trägern 4 und 5 der Rahmenstruktur 1 erstreckende - Breite B in den Lagerbereichen 12 und 13 größer ist als die Breite b in den Verformungsbereichen 14. Hierzu sind die Lagerbereiche 12 und 13 angrenzend an den jeweiligen Verformungsbereich 14 in horizontaler Richtung konisch aufgeweitet, wobei der doppelte Keilwinkel α der Aufweitung 15 90° beträgt. Demgegenüber weisen die Lagerbereiche 12 und 13 und der Verformungsbereich 14 dieselbe Dicke D auf.The links 2 are distinguished by the fact that their width B, which extends parallel to the supports 4 and 5 of the frame structure 1, is greater in the bearing areas 12 and 13 than the width b in the deformation areas 14. For this purpose, the bearing areas 12 and 13 adjacent to the respective deformation region 14 in the horizontal direction conically widened, wherein the double wedge angle α of the expansion 15 is 90 °. In contrast, the bearing areas 12 and 13 and the deformation area 14 have the same thickness D.

Die Lagerbereiche 12 und 13 weisen endseitig angeordnete Einschnitte 16 auf. Diese erstrecken sich Y-förmig von den Stirnkanten 17 der Lagerbereiche in diese hinein. Durch die Einschnitte 16 wird jeder Lagerbereich 12 bzw. 13 in zwei Einspannköpfe 18 untergliedert.The storage areas 12 and 13 have recesses 16 arranged at the end. These extend Y-shaped from the end edges 17 of the storage areas in this. Through the incisions 16 of each storage area 12 and 13 is divided into two gripping heads 18.

Zur Fixierung der Lenker 2 an der Rahmenstruktur 1 bzw. dem zugeordneten Pflugschar-Segment 3 dienen taschenförmige Aufnahmen 19. Diese umfassen jeweils ein klammerartiges Umfangselement 20 und einen Deckel 21. Die Umfangselemente 20 sind fest mit einem der Träger 4 bzw. 5 der Rahmenstruktur 1 bzw. einer der Traversen 10 bzw. 11 der Pflugschar-Segmente 3 verbunden, insbesondere verschweißt. Demgegenüber sind die Deckel 21 der taschenförmigen Aufnahmen lösbar auf die Umfangselemente 20 aufgeschraubt. Die klammerartigen Umfangselemente 20 definieren in Verbindung mit dem zugeordneten Deckel 21 und dem zugeordneten Träger 4, 5 bzw. der zugeordneten Traverse 10, 11 einen Hohlraum 22, dessen Gestalt korrespondiert zu der Gestalt der Lagerbereiche 12 bzw. 13 der Lenker 2. Hierzu ist an jedes der Umfangselemente 20 insbesondere ein Y-förmig ausgeführter Steg 23 angeformt, der in den korrespondierenden Einschnitt 16 des zugeordneten Lagerbereichs 12 bzw. 13 eingreift. Wesentlich ist im übrigen, daß sich die Umfangselemente entsprechend den Aufweitungen 15 der Lenker 2 in Richtung auf die jeweilige Öffnung 24 hin verjüngen. Die Umfangselemente weisen dabei benachbart zur jeweiligen Öffnung 24 wulstartige Verdickungen 25 auf, die insbesondere der Einleitung von Seitenkräften von den Pflugschar-Segmenten 3 in die Lenker 2 und von diesen in die Rahmenstruktur 1 dienen, ohne durch allzu große punktuelle Belastungen die Integrität der Lenker 2 zu gefährden.For fixing the handlebars 2 to the frame structure 1 and the associated ploughshare segment 3 are pocket-shaped receptacles 19. These comprise each a clip-like peripheral element 20 and a cover 21. The peripheral elements 20 are fixed to one of the carrier 4 and 5 of the frame structure first or one of the trusses 10 and 11 of the ploughshare segments 3 connected, in particular welded. In contrast, the lid 21 of the pocket-shaped receptacles are detachably screwed onto the peripheral elements 20. The clip-like peripheral elements 20 define in conjunction with the associated cover 21 and the associated carrier 4, 5 and the associated cross member 10, 11 a cavity 22, whose shape corresponds to the shape of the bearing portions 12 and 13 of the link 2. For this purpose is each of the peripheral elements 20 in particular a Y-shaped executed web 23 is formed, which engages in the corresponding recess 16 of the associated storage area 12 and 13 respectively. It is essential, moreover, that the peripheral elements taper in accordance with the widenings 15 of the link 2 in the direction of the respective opening 24. The peripheral elements in this case have adjacent to the respective opening 24 bead-like thickenings 25, which serve in particular the introduction of lateral forces of the ploughshare segments 3 in the handlebars 2 and of these in the frame structure 1, without too much punctual loads, the integrity of the handlebar second to endanger.

Die Deckel 21 sind jeweils auf das zugeordnete Umfangselement 20 stirnseitig aufgesetzt. Die Höhe h der Umfangselemente 20 entspricht dabei im wesentlichen der Dicke D der Lenker 2, so daß beim Aufschrauben der Deckel 21 auf die Umfangselemente 20 keine nennenswerten Quetschkräfte auf die Lenker 2 ausgeübt werden. Zur Schonung der Lenker im Bereich des jeweiligen Übergangs von den Lagerbereichen 12 bzw. 13 zum Verformungsbereich 14 sind die Deckel 21 der taschenförmigen Aufnahmen 19 im Bereich der jeweiligen Öffnung 24 dergestalt aufgebogen, daß sich ein Einlaufbogen ergibt.The cover 21 are each placed on the front side of the associated peripheral element 20. The height h of the peripheral elements 20 corresponds substantially to the thickness D of the link 2, so that when screwing the cover 21 on the peripheral elements 20 no significant squeezing forces are exerted on the handlebars 2. To protect the handlebar in the region of the respective transition from the storage areas 12 and 13 to the deformation region 14, the lid 21 of the pocket-shaped receptacles 19 are bent in the region of the respective opening 24 such that there is an inlet bend.

Die vorliegende Erfindung wurde vorstehend anhand eines Ausführungsbeispiels erläutert, bei dem die Lenker 2 über ihre gesamte Erstreckung eine konstante Dicke D aufweisen. Lediglich der Vollständigkeit halber sei nochmals darauf hingewiesen, daß dies keineswegs zwingend ist. Vielmehr können im Rahmen der vorliegenden Erfindung eingesetzte Lenker durchaus auch in ihren unterschiedlichen Bereichen verschiedene Dicken aufweisen. In Betracht kommt dabei insbesondere, daß die Dicke der Lenker 2 in den Lagerbereichen 12 und 13 größer oder aber kleiner ist als die Dicke in den Verformungsbereichen 14, wobei die Lagerbereiche insbesondere auch hinsichtlich ihrer Dicke konisch aufgeweitet sein können. Ebenfalls ist im Rahmen der vorliegenden Erfindung in Abwandlung der in der Zeichnung veranschaulichten Ausführungsform denkbar, daß die Lenker 2 in ihren Lagerbereichen 12 und 13 ausschließlich hinsichtlich ihrer Dicke, nicht jedoch hinsichtlich ihrer Breite größer dimensioniert sind als in den Verformungsbereichen 14.The present invention has been explained above with reference to an embodiment in which the links 2 have a constant thickness D over their entire extent. Merely for the sake of completeness, it should again be pointed out that this is by no means mandatory. Rather, used in the context of the present invention handlebars may well have different thicknesses in their different areas. It is particularly considered that the thickness of the arm 2 in the storage areas 12 and 13 is greater than or smaller than the thickness in the deformation regions 14, wherein the storage areas can be widened conically, in particular also in terms of their thickness. It is also conceivable within the scope of the present invention, in a modification of the embodiment illustrated in the drawing, that the arms 2 are dimensioned larger in their bearing areas 12 and 13, only with respect to their thickness, but not with respect to their width, than in the deformation areas 14.

Ferner sei darauf hingewiesen, daß die Aufweitung der Lenker in den Lagerbereichen keineswegs zwingend, wie für das vorstehend erläuterte Ausführungsbeispiel zutreffend, konisch ausgeführt sein muß. Vielmehr kommt beispielsweise auch eine tropfenförmige, halbrunde, ellipitische oder dgl. ausgeführte Aufweitung in Betracht, wobei die Gestalt der taschenförmigen Aufnahme an die Ausführung der Aufweitung angepaßt ist.It should also be noted that the expansion of the handlebars in the storage areas by no means mandatory, as applicable to the above-described embodiment, must be conical. Rather, for example, a drop-shaped, semicircular, elliptical or the like. Running widening into consideration, the shape of the pocket-shaped receptacle is adapted to the execution of the expansion.

Claims (8)

  1. A snow plow with a plow blade that comprises at least one segment (3) and with a frame structure (1), wherein the at least one plow blade segment (3) is supported in a displaceable fashion on the frame structure (1) by means of elastically deformable connecting rods (2), wherein the connecting rods (2) feature two bearing regions (12, 13) on the respective ends and a deformation region (14) situated between the bearing regions, and wherein the width (B) and/or the thickness (D) of the connecting rods (2) is greater in the bearing regions (12, 13) than in the deformation regions (14) such that a widening (15) of the connecting rods (2) with respect to at least one of the dimensions width or thickness is created in the bearing regions (12, 13) relative to the corresponding dimension in the deformation region (14),
    characterized in
    that the respective widening (15) is enclosed by a corresponding pocket-shaped receptacle (19).
  2. The snow plow according to Claim 1,
    characterized in
    that the bearing regions (12, 13) are conically widened adjacent to the respective deformation region (14).
  3. The snow plow according to Claim 2,
    characterized in
    that the double wedge angle (α) of the widening (15) of the connecting rods (2) lies between 60° and 120° in their bearing regions (12, 13).
  4. The snow plow according to one of Claims 1 to 3,
    characterized in
    that the connecting rods (2) have the same thickness (D) in the bearing regions (12, 13) and in the deformation regions (14).
  5. The snow plow according to one of Claims 1 to 4,
    characterized in
    that the pocket-shaped receptacles (19) define cavities (22) with a shape that corresponds to the shape of the bearing regions (12, 13) of the connecting rods (2) and the bearing regions (12, 13) feature incisions (16) on their ends, wherein webs (23) that correspond to and engage into the incisions (16) are provided within the pocket-shaped receptacles (19).
  6. The snow plow according to Claim 5,
    characterized in
    that the incisions (16) and the webs (23) are realized in a Y-shaped fashion.
  7. The snow plow according to one of Claims 1 to 5,
    characterized in
    that the pocket-shaped receptacles (19) respectively feature a clamp-like peripheral element (20) and a cover (21), wherein the cover (21) is separably connected to the assigned peripheral element (20) that is rigidly connected to the frame structure (1) and the corresponding plow blade segment (3), respectively.
  8. The snow plow according to one of Claims 1 to 3,
    characterized in
    that the width (b) of the connecting rods (2) is much greater than their thickness (D) in the deformation region (14).
EP01121248A 2000-09-08 2001-09-05 Snowplough Expired - Lifetime EP1186715B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10044560A DE10044560A1 (en) 2000-09-08 2000-09-08 snow plow
DE10044560 2000-09-08

Publications (3)

Publication Number Publication Date
EP1186715A2 EP1186715A2 (en) 2002-03-13
EP1186715A3 EP1186715A3 (en) 2003-10-22
EP1186715B1 true EP1186715B1 (en) 2006-11-15

Family

ID=7655582

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01121248A Expired - Lifetime EP1186715B1 (en) 2000-09-08 2001-09-05 Snowplough

Country Status (3)

Country Link
EP (1) EP1186715B1 (en)
AT (1) ATE345420T1 (en)
DE (2) DE10044560A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1278465B (en) * 1966-11-19 1968-09-26 Beilhack Maschf Martin Snow plow with evasive flock
DE3151726C2 (en) * 1981-12-29 1986-01-30 Martin Beilhack Maschinenfabrik Und Hammerwerk Gmbh, 8200 Rosenheim snow plow
DE3311019C2 (en) * 1983-03-25 1985-08-01 Martin Beilhack Maschinenfabrik Und Hammerwerk Gmbh, 8200 Rosenheim Sliding shoe
DE3603496C1 (en) * 1986-02-05 1987-07-02 Martin Beillhack Maschinenfabr Snow plough

Also Published As

Publication number Publication date
EP1186715A2 (en) 2002-03-13
ATE345420T1 (en) 2006-12-15
EP1186715A3 (en) 2003-10-22
DE50111442D1 (en) 2006-12-28
DE10044560A1 (en) 2002-04-04

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