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EP0849401A1 - Dispositif de fixation d'un racleur à une lame d'un chasse-neige - Google Patents

Dispositif de fixation d'un racleur à une lame d'un chasse-neige Download PDF

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Publication number
EP0849401A1
EP0849401A1 EP97121827A EP97121827A EP0849401A1 EP 0849401 A1 EP0849401 A1 EP 0849401A1 EP 97121827 A EP97121827 A EP 97121827A EP 97121827 A EP97121827 A EP 97121827A EP 0849401 A1 EP0849401 A1 EP 0849401A1
Authority
EP
European Patent Office
Prior art keywords
ploughshare
clamping lever
scraper bar
clamping
wedge
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
EP97121827A
Other languages
German (de)
English (en)
Other versions
EP0849401B1 (fr
Inventor
Walter Maier
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0849401A1 publication Critical patent/EP0849401A1/fr
Application granted granted Critical
Publication of EP0849401B1 publication Critical patent/EP0849401B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E01H5/061Apparatus 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

Definitions

  • the invention relates to a fastening device for the Establish a detachable connection between the scraper bar and the ploughshare of a snow removal vehicle.
  • the known fastening devices with which the Scraper bar at the bottom of snow removal vehicles is attached are designed as screw connections.
  • the scraper bar is attached using a clamping screw a reinforcement bar welded to the lower edge of the ploughshare to secure the attachment is it known the scraper between a clamping rail that on the front in the direction of travel of the snow removal vehicle lying surface of the scraper bar and the pinch the reinforcement strip.
  • the Legs of the terminal strip resting on the scraper bar a relatively large upper area of the scraper bar.
  • the wear area of the scraper bar becomes strong reduced with the consequence that a frequent change of the Scraper and the no longer usable, relatively large remainder of the scraper bar as a loss of material Purchase must be made.
  • the object of the present invention is a fastening device to create that enables the existing Take scraper bars into operation longer, because of a Larger area for the scraper abrasion that occurs during clearing should be available.
  • this is done by moving on in the direction of travel rear surfaces of the plow arranged reached two-armed clamping lever with one end can be locked on the scraper bar and on its other End can be connected to the ploughshare via swivel arms, the locking of the clamping lever by one on the Actuating device acting on the clamping lever takes place.
  • the two-armed clamping lever is preferably arranged to be pivotable about a pivot axis running parallel to the lower edge of the ploughshare in both sides of the clamping lever, with the flanges fixedly connected to the rear surface of the ploughshare in the direction of travel of the snow-clearing vehicle and with its one end in the surface located at the rear in the direction of travel of the snow-clearing vehicle
  • the scraper bar can be locked and at its other end there are one or two swivel arms arranged at a lateral distance from one another in the same plane as the clamping lever, the free or free end (s) of which can be locked on the rear surface of the ploughshare in the direction of travel , or are, with the actuating device acting on the one lever arm of the clamping lever for locking the clamping lever.
  • the particular advantage of the fastening device according to the invention is that the entire fastening device is located on the surfaces of the ploughshare and scraper bar located at the rear in the direction of travel of the snow plow, ie in other words the scraper bar is pressed from behind against the lower area of the ploughshare and it is avoided that a large surface area of the scraper bar is already covered by parts of the fastening device at the front and is therefore no longer available for work.
  • the entire locking of the scraper bar takes place on the rear side of the ploughshare in the direction of travel.
  • this actuating device can be designed in the form of a clamping screw which passes through the ploughshare starting from its front surface and is supported with the end of its length-adjustable threaded shaft against the lever arm of the clamping lever.
  • a hydraulic piston unit can also be installed instead of the clamping screw. the supply hydraulics are already in the vehicle, so that the actuation of the above-mentioned unit can be easily accomplished.
  • an actuating device which can be replaced and put into operation by the operator without the use of special tools.
  • an expandable hose is selected as the actuating device which runs parallel to the lower edge of the ploughshare between the rear surface of the ploughshare and the clamping lever and is connected to a pneumatic or hydraulic system.
  • the particular advantage of this actuator is in that the loosening of the scraped scraper residue can be made without iced screw connections to have to solve. In addition, everyone can worn scrapers can be loosened at once.
  • a ploughshare 1 there is one along its lower edge Reinforcement bar 2 welded in the form of an L-profile, one leg 2a of the length of the ploughshare 1 after continues below and its front in the direction of travel Surface with the surface of the ploughshare 1 on the same Height.
  • the other leg 2b protrudes backwards and has recesses 2c at the locations of the reinforcement strip 2 on where fasteners 3 for connection between the ploughshare 1 and a scraper bar 4 to be arranged.
  • the scraper bar 4 is in the example of FIG. 1 as one so-called combination bar trained.
  • This combination bar can hollow inside or with rubber, plastic, minerals, Cast or other mixtures can be filled.
  • the casing This scraper bar 4 is mainly made of low-wear Steel formed, but you also know scrapers that from are made according to hard plastic.
  • the one in front in the direction of travel of the snow removal vehicle Part 4a of this scraper bar 4 can with a combination bar consist of a much thinner material than in massive scraper bars because of the stability of the scraper bar through the rear support leg 4b, which is about the The length of the scraper bar 4a is guaranteed.
  • the advantage is achieved that the lower strength the scraper 4a material saved, the weight of the Scraper bar less and thus the energy expenditure is reduced and still the clearing performance due to thinner scraper bar 4a, especially the so-called Black clearance, compared to conventional scraper bars is improved.
  • the shape of the combination strip 4 is in this Example conical, tapering towards the bottom.
  • the width of the support leg 4b exceeds that Widths of the fasteners 3 slightly.
  • the Scraper bar 4a is formed in one piece, her Width corresponds to the width of the ploughshare 1.
  • the fastening device 3 comprises the most important Component a clamping lever designed as a two-armed lever 5, which is about a pivot axis 6 in the direction of travel of the snow removal vehicle lying vertical plane pivotable is.
  • a clamping lever designed as a two-armed lever 5 which is about a pivot axis 6 in the direction of travel of the snow removal vehicle lying vertical plane pivotable is.
  • For holding the clamping lever 5 are on the rear surface of the ploughshare 1 pairs of fastening lugs 7 welded at a distance from each other are arranged and storage for the ends of the Form pivot axis 6 of the clamping lever 5, the between the two Mounting tabs 7 is pivotally held.
  • the pivot axis 6 is secured against slipping by pins 8.
  • One end 5a of the clamping lever 5 is a clamping claw formed in the recessed position in a recess 9 engages the rear surface of the scraper bar 4a.
  • 2a is an enlarged view of the upper part of the scraper bar 4a with a ground, milled or eroded recess 9 shown in the End 5a of the clamping lever 5, designed as a claw, engages can of course the shape of the recess be chosen differently.
  • the width of the recess 9 only slightly larger than the width of the clamping claw 5a is a lateral displacement of the scraper bar 5 not possible relative to ploughshare 1, once through an obstacle on the scraper bar 4 in a side Directional pressure should be so large that it Surface pressure by the force of the jam exceeds.
  • the actuator 16 is by a Screw 17 formed by the front of the ploughshare 1 starting from one with the rear surface of the Ploughshare 1 screwed through welded mounting block 18 becomes.
  • the end of its threaded shaft 17a settles thereby on one arm 5b of the clamping lever 5 and causes a pivoting of the clamping lever 5 such that the Clamping claw 5a in the recess 9 of the L-profile leg 2a rests on scraper bar 4a.
  • the free ends of the swivel arms 11 also slide along the back surface of the ploughshare and rest in one of the recesses 13.
  • the scraper bar 4 is thus firmly connected to the ploughshare 1.
  • the fastening devices shown in FIGS. 3 to 6 differ essentially only in the training the actuating devices 16 with which the clamping lever 5 is brought into the locking position, but not in their Effect on the clamping lever 5.
  • the actuator 16 is in the form of a Expansion hose 19 formed.
  • the expansion hose 19 can all fastening devices provided on the ploughshare 1 3 be common and by a pneumatic or Hydraulic system can be controlled from.
  • the wall of the Expansion hose 19 is on the one hand on the rear Surface of the ploughshare 1 and on the other hand on the lever arm 5b of the clamping lever 5.
  • Increasing the internal pressure of the expansion hose 19 causes a pivoting movement of the clamping lever 5 in the sense that the clamp claw 5a on the one hand and the Swivel arms 11 on the other hand in the assigned to them Snap recesses 9 and 13 into place. If the scraper bar 4 are replaced, the operator does not need Special tool.
  • the internal pressure of the expansion hose drops 19 all fastening devices 3 loosen at the same time and the scraper bar can be used without difficulty be replaced.
  • the fastening device 3 comprises a rotary wedge 20 as the actuating device, the wedge shape of which can be seen in cross section from FIG. 4.
  • the design of the rotary wedge 20 in plan view results from FIG. 5.
  • the rotary wedge 20 lies between the rear surface of the ploughshare 1 and the lever arm 5b of the clamping lever 5. It is over a bolt 22, which penetrates the ploughshare and a reinforcing disk 23, is connected to a tab 24 which can be rotated by hand or by hammer action and which rests on the front of the ploughshare 1.
  • this rotary wedge 20 can be caused to rotate even in the iced-up state, which means that no special tool is required to move the rotary wedge 20 into or out of its clamping position. If the desired clamping position of the rotary wedge 20 is reached, ie the clamping claws 5a and swivel arms 11 snap into their corresponding recesses 9 and 13, then a safety pin 25 is inserted through a bore 26 provided in the ploughshare 1 and with one end thereof in one of the Indentations 21 brought the rotary wedge. See Fig. 5. 4 also shows the combination scraper bar already mentioned above with the support foot 4b running parallel to the scraper bar 4a.
  • the design of the fastening device shown in FIGS. 6 and 7 3 again comprises an actuating device Turning wedge 20 according to FIG. 5. But here provided for the rotation of the wedge 20 tab 24, the is firmly connected to the rotary wedge 20 via the bolt 22, locked with the help of the locking pin 25. Furthermore the tab 24 is pulled down so far that it is still covers part of the mounting strip 2. This serves a better stabilization of the attachment of the Scraper bar 4.
  • this Example the scraper bar 4a from a particularly thin Sheet steel is formed on the back wall for reinforcement and support vulcanized rubber or plastic material 4c is.
  • the invention Fastening device not only for fastening the in the selected description above as examples Scraper is suitable, but also for the connection the conventional scraper bars with a ploughshare can be. All you have to do is ploughshare and scraper bar for snapping the clamps necessary recesses are milled.
  • the Fastening device according to the invention can also for Scraper bars with a profiled surface are used, i.e. in other words, it's a universal usable fastening device with the great advantage that they have no special tools and no special knowledge can be used by any operator and always the advantages mentioned above in terms of material and Allows cost savings.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Clamps And Clips (AREA)
EP97121827A 1996-12-19 1997-12-11 Dispositif de fixation d'un racleur à une lame d'un chasse-neige Expired - Lifetime EP0849401B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29622102U 1996-12-19
DE29622102U DE29622102U1 (de) 1996-12-19 1996-12-19 Befestigungsvorrichtung für Schürfleisten an der Pflugschar eines Schneeräumfahrzeuges

Publications (2)

Publication Number Publication Date
EP0849401A1 true EP0849401A1 (fr) 1998-06-24
EP0849401B1 EP0849401B1 (fr) 2002-03-27

Family

ID=8033562

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97121827A Expired - Lifetime EP0849401B1 (fr) 1996-12-19 1997-12-11 Dispositif de fixation d'un racleur à une lame d'un chasse-neige

Country Status (3)

Country Link
EP (1) EP0849401B1 (fr)
AT (1) ATE215151T1 (fr)
DE (2) DE29622102U1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29704896U1 (de) * 1997-03-18 1997-05-07 Maier, Walter, 84478 Waldkraiburg Schürfleiste für Schneeräumfahrzeuge
DE102006021910A1 (de) 2006-05-11 2007-11-15 Gummi Küper GmbH & Co KG Gewellte Räumleiste
CA2867957A1 (fr) 2014-10-17 2016-04-17 Jimmy Vigneault Segments de lames juxtaposees de dispositif racleur comportant un raccord pivotant entre les rebords d'accouplement
CA3049037A1 (fr) 2017-01-05 2018-07-12 Jimmy Vigneault Dispositif de raclage pour deblayer une surface de chaussee
US10865533B2 (en) 2017-05-12 2020-12-15 Michael F. Stephan Flexible snowplow cutting edge

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH527331A (de) * 1971-05-25 1972-08-31 Peter Ag Konrad Schneepflug
DE4301386C1 (de) * 1993-01-20 1994-07-14 Schmidt Winterdienst Schneepflug

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3772803A (en) * 1972-04-03 1973-11-20 L Cote Snow plow
AT313966B (de) * 1972-04-11 1974-03-11 Peitl Gmbh J Schneepflug
US3793752A (en) * 1972-12-29 1974-02-26 Loed Corp Convertible snow plow with auxiliary ground support
US4261115A (en) * 1979-08-22 1981-04-14 Chittenden Gordon D Snowplow
DE3711988A1 (de) * 1987-03-27 1988-10-20 Peter Escher Schneepflug
DE3838002A1 (de) * 1988-11-09 1990-05-10 Rudolf Schotenroehr Schneeraeumleisten - anschlagschiene
DE29612143U1 (de) * 1996-07-12 1996-09-19 Schmidt Holding Europe GmbH, 79837 St Blasien Schneepflug

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH527331A (de) * 1971-05-25 1972-08-31 Peter Ag Konrad Schneepflug
DE4301386C1 (de) * 1993-01-20 1994-07-14 Schmidt Winterdienst Schneepflug

Also Published As

Publication number Publication date
DE29622102U1 (de) 1997-02-20
EP0849401B1 (fr) 2002-03-27
ATE215151T1 (de) 2002-04-15
DE59706748D1 (de) 2002-05-02

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