EP2625943A1 - Einsatz - Google Patents

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Publication number
EP2625943A1
EP2625943A1 EP12155188.1A EP12155188A EP2625943A1 EP 2625943 A1 EP2625943 A1 EP 2625943A1 EP 12155188 A EP12155188 A EP 12155188A EP 2625943 A1 EP2625943 A1 EP 2625943A1
Authority
EP
European Patent Office
Prior art keywords
tool
supporting arms
supporting
supporting arm
implement
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
EP12155188.1A
Other languages
English (en)
French (fr)
Other versions
EP2625943B1 (de
Inventor
Stig Engström
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.)
Mahler & Soner AB
Original Assignee
Mahler & Soner AB
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 Mahler & Soner AB filed Critical Mahler & Soner AB
Priority to DK12155188T priority Critical patent/DK2625943T3/da
Priority to EP20120155188 priority patent/EP2625943B1/de
Publication of EP2625943A1 publication Critical patent/EP2625943A1/de
Application granted granted Critical
Publication of EP2625943B1 publication Critical patent/EP2625943B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E01H5/063—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 snow-plough blades tiltable for shock-absorbing purposes
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
    • E01C19/15—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials for laying-down uncoated stone or similar materials, or for striking-off or spreading same without compacting, e.g. for crushed rock base courses, sand cushions for paving
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/627—Devices to connect beams or arms to tractors or similar self-propelled machines, e.g. drives therefor
    • E02F3/6273—Devices to connect beams or arms to tractors or similar self-propelled machines, e.g. drives therefor using legs to support the beams or arms on the ground during the connecting process
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
    • E02F3/80—Component parts
    • E02F3/815—Blades; Levelling or scarifying tools
    • E02F3/8152—Attachments therefor, e.g. wear resisting parts, cutting edges

Definitions

  • the present invention relates to an implement arranged to be coupled to a vehicle.
  • the implement comprises a tool and a linkage, wherein the linkage comprises a coupling frame for attachment to the vehicle, and two supporting arms pivotally connected to the coupling frame and to the tool.
  • Common implements have a centre connection between the blade and the main parts of the linkage carrying the blade.
  • the blade may be pivotable about a vertical shaft of the centre connection.
  • the linkage comprises a reciprocating cylinder, which is pivotally connected with the blade beside the centre connection.
  • the reciprocating cylinder is operated for adjusting the angle of the blade around a vertical axis at the centre connection.
  • Such a centre mounting of the blade is disadvantageous in several respects, such as subject to large torque when the blade runs over a bump close to a side edge thereof, and vibrations occurring in the blade due to reciprocating movements when the working surface is uneven and the vehicle is driven at a substantial speed.
  • EP 587 175 discloses an alternative implement having a blade and a linkage where the linkage comprises two separate pivot cylinders, which are reciprocating for adjusting the angle of the blade.
  • the pivot cylinders are positioned at a distance from each other.
  • the linkage comprises several further pivot rods mounted above and below the pivot cylinders at the blade, in order to support the blade as regards pivoting about a horizontal/longitudinal axis of the blade.
  • This construction is more robust to vibrations and different kind of torque forces than the centre connection.
  • it is a complex construction with a large number of linkage parts and a large number of pivoting connections.
  • an implement which is arranged to be coupled to a vehicle, such as a truck or a front loader.
  • the implement comprises a tool and a linkage wherein the linkage, in turn, comprises a coupling frame for attachment to the vehicle.
  • the linkage also comprises a first supporting arm having a first and a second end and a second supporting arm having a first and a second end.
  • the first ends of said first and second supporting arms are pivotally connected to said coupling frame and the second ends of said first and second supporting arms are pivotally connected to said tool, wherein the connecting points between the first ends of the supporting arms and the coupling frame are laterally spaced from each other and the connecting points between the second ends of the supporting arms and the tool are laterally spaced from each other.
  • the linkage further comprises first actuating members arranged at each of the first and second supporting arms for exercising an adjustable downward or upward force on the tool through said first and second supporting arms.
  • the linkage further comprises a second actuating member, which is provided at the first supporting arm for effecting a lateral movement of the tool.
  • the second actuating member comprises a hydraulic cylinder pivotally coupled to the first supporting arm and to the coupling frame.
  • At least one of the first and second supporting arms is telescopic.
  • the provision of telescopic supporting arms provides a very flexible system. Telescopic arms allow a user to finely adjust the angle of the tool with respect to the direction of movement.
  • each of the first actuating members comprises a hydraulic cylinder pivotally coupled to a respective supporting arm and the coupling frame, and wherein the first actuating members are arranged above and in a same vertical plane as the corresponding first and second supporting arm.
  • the tool comprises a first and a second segment, and wherein the second end of said first supporting arm is pivotally connected to said first segment of the tool and the second end of said second supporting arm is pivotally connected to the second segment of said tool.
  • the first and second segments of the tool are pivotally adjoined allowing for the first and second segments to pivot around a horizontal axis relative to each other.
  • the tool can adapt itself to varying working conditions.
  • the pivotal connection between the first and second supporting arms and the tool comprises a hinge having a vertical axis of rotation.
  • a hinge with a horizontal axis of rotation ensures structural stability while still providing a freedom of movement between the segments of the tool so that the tool can adapt to varying working conditions.
  • the tool is a snow plough.
  • the construction of the invention is particularly suitable for use with snow ploughs where high operational speeds are desirable and where the conditions may be extremely adverse with rough road surfaces. This combination, high speed and rough road surfaces, is extremely prone to cause undesirable vibrations in the snow plough, which, in turn, causes the road surface to become even more uneven. Therefore, the construction of the invention is very suitable for snow ploughs.
  • the snow plough comprises a cutting element provided at a lower edge thereof, and wherein said cutting element is inclined such that a lowermost edge thereof constitutes a leading edge during normal use of the snow plough.
  • An embodiment of the implement 100 according the present invention comprises a tool 102 and a linkage 104.
  • the tool is a snow plough, but other kinds of tools are applicable as well, such as a road grader blade or a bulldozer blade.
  • the implement is attachable to a vehicle, typically a road vehicle such as a truck. However, depending on the kind of tool of course other kinds of vehicles can be used, such as wheel loader or a tractor. However, as is evident from this application the implement is particularly advantageous when the vehicle is driving at a substantial speed, which is the typical situation for snow ploughing a road with a truck.
  • the linkage 104 comprises a coupling frame 106, which is provided with common engagement portions 108 such as hooks, shaft seats etc., for the very attachment to a complementary coupling frame 110 of the vehicle. Furthermore, the linkage 104 comprises a first supporting arm 112, having a first end 112a, and a second end 112b; and a second supporting arm 114, having a first end 114a, and a second end 114b. The first ends 112a, 114a of the supporting arms 112, 114 are pivotally connected with the coupling frame 106 at a distance from each other.
  • the first ends are laterally distanced from each other such that the first end 112a of the first supporting arm 112 is connected with the coupling frame on one side of a centre of the coupling frame 106, and the first end 114a of the second supporting arm 114 is connected with the coupling frame 106 on the other side of the centre of the coupling frame 106.
  • the second ends 112b, 114b of the supporting arms 112, 114 are connected with the tool 102 at a distance from each other.
  • the width of the tool 102 is considerably wider than the width of the coupling frame 106, and the lateral distance between the second ends 112b, 114b is considerably greater than between the first ends 112a, 114a.
  • this relation is not essential and may differ depending on the type of tool.
  • the pivotal connections between the first and second supporting arms 112, 114 and the tool 102 i.e. each of the connections at the second ends 112b, 114b, comprises a hinge 116, 118 having a vertical axis of rotation.
  • the second ends 112b, 114b are hingedly connected with the tool 102.
  • the connections between the first and second supporting arms 112, 114 and the tool 102 are rigid to tool movements about a horizontal, or longitudinal, axis, which provides a stable structure without several extra rods as in the prior art mentioned above.
  • the linkage 104 further comprises first actuating members 120, 122, arranged at each of the first and second supporting arms 112, 114 for exercising an adjustable downward or upward force on the tool 102, through the first and second supporting arms 112, 114.
  • Each of the first actuating members comprises a hydraulic cylinder 120, 122 pivotally coupled to a respective supporting arm 112, 114 and the coupling frame 106.
  • the first actuating members 120, 122 are arranged above and in a same vertical plane as the corresponding first and second supporting arm 112, 114.
  • each first actuating member 120, 122 has a first end 120a, 122a, which is pivotally connected with the coupling frame 106; and a second end 120b, 122b, which is pivotally connected with the first supporting arm 112, and the second supporting arm 114, respectively, at a top surface thereof.
  • the first actuating members 120, 122 are placed on top of the supporting arms 112, 114 at an angle to the arms.
  • At least one of the first and second supporting arms 112, 114 is telescopic, and in this embodiment both arms 112, 114 are telescopic. Thereby, it is simple to adjust the angle of the tool 102 relative to the direction of movement of the vehicle, and thus of the tool 102.
  • the linkage 104 further comprises a second actuating member 124, which is provided at the first supporting arm 112 for effecting a lateral movement of the tool 102.
  • the second actuating member 124 comprises a hydraulic cylinder 124 pivotally coupled to the first supporting arm 112 and to the coupling frame 106. More particularly, a first end 124a of the second actuating member 124 is pivotally connected with the coupling frame 106 between the first ends 112a, 114a of the first and second supporting arms 112, 114. A second end 124b of the second actuating member 124 is pivotally connected with the first supporting arm 112 at an inside thereof.
  • the second actuating member 124 extends in the same lateral plane as the first and second supporting arms 112, 114. Of course, it is possible to couple the second actuating member 124 to the second supporting arm 114 instead or even using a second actuating members 124 for each first and second supporting arm 112, 114.
  • the linkage 104 is operated as follows.
  • the driver of the vehicle is able to control the angle of the tool 102 by adjusting the length of the supporting arms 112, 114.
  • the driver is able to control the lateral position of the tool 102 by adjusting the length of the second actuating member 124.
  • the angle is slightly changed which may necessitate a correction by operating one of the arms 112, 114. Comparing Fig.3 with Fig. 2 the tool 102 has been moved to the right seen from a direction of vehicle movement, by extending the second actuating member 124, and the angle of the tool 102 has been adjusted by both retracting the first, or right, supporting arm 112 and extending the second, or left, supporting arm 114.
  • the driver By operating the first actuating members 120, 122, i.e. extending or retracting them, the driver is able to adapt the force exerted by the tool on the ground to different ground conditions. This has a further advantage.
  • the tools rest on the ground with their own weight. In order to decrease the risk of vibrating, or even jumping tools, they have been made heavier than would be necessary from a perspective of strength.
  • a heavy tool 102 is disadvantageous due to a higher cost and due to loading the vehicle with an unnecessary weight.
  • the weight of the tool can be optimised/minimized since the first actuating members 120, 122 can be operated to increase the ground pressure to stabilise the tool 102. Since there are two first actuating members 120, 122 which act upon the tool 102 at laterally spaced positions the stabilizing effect is substantial.
  • the tool 102 comprises a first segment 126, and a second segment 128, which are interconnected by means of a pivot connection 130 allowing the first and second segments 126, 128 to pivot around a horizontal axis of the pivot connection 130 relative to each other.
  • the first and second supporting arms 112, 114 are connected with a respective one of the first and second segments 126, 128.
  • the tool 102 is able to adapt to different ground profiles by one or both segments 126, 128 sloping in either direction.
  • the tool 102 is a snow plough.
  • the snow plough 102 comprises exchangeable cutting elements 132 provided at a lower edge thereof, wherein the cutting elements 132 are inclined such that a lowermost edge thereof constitutes a leading edge during normal use of the snow plough 102.
  • the cutting elements are mounted at security holders 134 preventing damages on the tool as a whole if the cutting elements are stuck in the ground or the like.
  • the tool can be made as a solid unit instead of as two pivotally adjoined segments, or it can be made as more than two segments.
  • the number of supporting arms is optional as well, although at least two arms is preferred, and at least one arm per segment, when the tool is segmented.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
EP20120155188 2012-02-13 2012-02-13 Arbeitsgerät Active EP2625943B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DK12155188T DK2625943T3 (da) 2012-02-13 2012-02-13 Et redskab
EP20120155188 EP2625943B1 (de) 2012-02-13 2012-02-13 Arbeitsgerät

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20120155188 EP2625943B1 (de) 2012-02-13 2012-02-13 Arbeitsgerät

Publications (2)

Publication Number Publication Date
EP2625943A1 true EP2625943A1 (de) 2013-08-14
EP2625943B1 EP2625943B1 (de) 2014-07-02

Family

ID=45655655

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20120155188 Active EP2625943B1 (de) 2012-02-13 2012-02-13 Arbeitsgerät

Country Status (2)

Country Link
EP (1) EP2625943B1 (de)
DK (1) DK2625943T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106836336A (zh) * 2017-03-15 2017-06-13 中国神华能源股份有限公司 一种耐磨块挡板

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4125271A (en) * 1976-06-11 1978-11-14 Ro-Wi Rosenberg & Wilboltt I/S Tool suspension
DE3218385A1 (de) * 1982-05-15 1983-11-17 Rabewerk Heinrich Clausing, 4515 Bad Essen Bodenbearbeitungsmaschine in form einer bodenfraese oder einer kreiselegge
EP0587175A1 (de) 1992-09-11 1994-03-16 MARTIN BEILHACK MASCHINENFABRIK UND HAMMERWERK GmbH Schneepflug
DE10346413A1 (de) * 2003-10-07 2005-05-04 Deere & Co Ladervorrichtung
US7028423B1 (en) * 2004-07-28 2006-04-18 Curry Floyd E Snowplow blade lifting mechanism
WO2010049896A2 (fr) * 2008-10-30 2010-05-06 Hubert Defrancq Dispositif de relevage avant pour tracteur
WO2011050460A1 (fr) * 2009-10-27 2011-05-05 Les Machineries Pronovost Inc. Système de relevage avant, véhicule pourvu d'un tel système, kit pour l'assembler, et méthodes d'assemblage et d'opération correspondantes

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4125271A (en) * 1976-06-11 1978-11-14 Ro-Wi Rosenberg & Wilboltt I/S Tool suspension
DE3218385A1 (de) * 1982-05-15 1983-11-17 Rabewerk Heinrich Clausing, 4515 Bad Essen Bodenbearbeitungsmaschine in form einer bodenfraese oder einer kreiselegge
EP0587175A1 (de) 1992-09-11 1994-03-16 MARTIN BEILHACK MASCHINENFABRIK UND HAMMERWERK GmbH Schneepflug
DE10346413A1 (de) * 2003-10-07 2005-05-04 Deere & Co Ladervorrichtung
US7028423B1 (en) * 2004-07-28 2006-04-18 Curry Floyd E Snowplow blade lifting mechanism
WO2010049896A2 (fr) * 2008-10-30 2010-05-06 Hubert Defrancq Dispositif de relevage avant pour tracteur
WO2011050460A1 (fr) * 2009-10-27 2011-05-05 Les Machineries Pronovost Inc. Système de relevage avant, véhicule pourvu d'un tel système, kit pour l'assembler, et méthodes d'assemblage et d'opération correspondantes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106836336A (zh) * 2017-03-15 2017-06-13 中国神华能源股份有限公司 一种耐磨块挡板

Also Published As

Publication number Publication date
DK2625943T3 (da) 2014-09-15
EP2625943B1 (de) 2014-07-02

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