EP2954117A1 - Klinge für einen schneepflug - Google Patents
Klinge für einen schneepflugInfo
- Publication number
- EP2954117A1 EP2954117A1 EP14714334.1A EP14714334A EP2954117A1 EP 2954117 A1 EP2954117 A1 EP 2954117A1 EP 14714334 A EP14714334 A EP 14714334A EP 2954117 A1 EP2954117 A1 EP 2954117A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- elongated plate
- plate portion
- rolling element
- blade according
- elongated
- 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
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
- E01H5/065—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
-
- 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
- E01H5/062—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 by scraper blades displaceable for shock-absorbing purposes
-
- 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
Definitions
- the present invention relates to a snowplow blade adapted to be driven by a ' self-propelled unit to remove snow or ice from a surface to be cleared, for example a road surface, to which the ensuing treatment will make explicit reference, without this implying any loss in generality.
- the present invention relates to a snowplow blade of the type comprising a mounting frame to the self-propelled unit, an upper rolling element coupled to the mounting f ame and a lower road surface scraping knife .
- the known blades of the type described above operate in a satisfactory manner when the road surface is flat, whereas they are found to be poorly efficient when the road surface has concavities, and/or convexities or longitudinal bumps.
- An object of the present invention is to obtain a snowplow blade, which allows to solve in . a simple and economical way the above exposed problems and, in particular, to obtain a uniform clearing of the road surface independently from the state of the road surface itself.
- a snowplow blade comprising a mounting frame to a self-propelled advancement unit of the blade itself above a surface to be cleared, an upper elongated rolling element carried by said frame and an elongated lower knife constituting a downward extension of the upper rolling element and having a free sliding lower edge, in use, in contact with said surface to be cleared;
- the lower knife comprising at least two elongated plate portions independent of one another and aligned in a direction transverse to the advancement direction of the blade; characterized by also comprising, for each of said elongated plate portion, at least a respective guide and slide assembly adapted to allow at least a ' translation of the respective said elongated plate portion to and from said rolling element with respect to the other of said elongated plate portions and elastic thrust means interposed between each of said elongated plate portion and the rolling element to space the elongated plate portion from the rolling element.
- the blade defined above also comprises, for each of said elongated plate portion, at least one pair of said guide and slide assemblies spaced from one another along the respective elongated plate portion in said cross direction.
- the blade defined above comprises, again, for each of said plate portions, at least one hinge adapted to allow, in use, a rotation of the respective said elongated plate portion with respect to the other said elongated plate portion about an axis of instantaneous rotation substantially orthogonal to the respective said elongated plate portion.
- Figure 1 is a perspective view of a preferred embodiment of a snowplow blade obtained according to the dictates of the present ' invention coupled to a thrust tractor;
- Figure 2 illustrates, in side elevation and on an enlarged scale with parts removed for clarity, the snowplow blade of Figure 1 ;
- Figure 3 illustrates, in section and on an enlarged scale, a detail of Figure 2;
- FIG 4 is a front view with parts removed for clarity of the snowplow blade of Figure 1;
- Figure 5 is an enlarged perspective view of a detail of Figures 3 and 4;
- Figure 6 is a figure similar to Figure 3 and illustrates a variant of a detail of Figure 3.
- FIG. 1 indicates, as a whole, a snowplow blade adapted to be advanced above a surface 2 to be cleared, generally a road surface or a square, by a self-propelled unit 3, schematically illustrated and known per se .
- the blade 1 comprises a. mounting frame 4 to the self-propelled unit, 3, an elongated rolling element 5, known per se and not described in detail, coupled to the frame 4 in a rotating manner about an axis 7 substantially orthogonal to the surface 2 under the thrust of actuators 6.
- the blade 1 also comprises a pair of support wheels or vertical reference, known per se and not visible in the attached figures, disposed in the vicinity of the frame 4 and in the rear of the rolling element 5 to rotate in contact with the surface 2 cleared by blade 1.
- the blade 1 comprises, finally, an elongated knife 8, which is disposed below the rolling element, constitutes a downward extension of the rolling element 5 and terminates below with a sliding edge 9, in use, in contact with the surface 2.
- the knife 8 is constituted by a row 10 of modules 11 independent from one another and juxtaposed one to the other.
- Each module 11 comprises a flat elongated plate 12, which is conveniently made of metallic material and, in a scraping condition, illustrated in Figures 1 - to 3, is juxtaposed and aligned to the other plates 12 in a rectilinear direction 13 (Fig. 1) transverse to an advancement direction of the blade 1, orthogonal to the axis 7 and substantially parallel to a generatrix of the rolling element 5 to define a portion of the knife 8.
- Each module 11 comprises, furthermore, a supporting guide and slide assembly 15 thereof of the respective plate 12 and a mounting plate block 16, elastically yielding, of the assembly 15 to the rolling element.
- each block 16 has an upper end firmly connected to a lower end portion of the rolling element 5 by means of respective bolts 18 and a lower end firmly connected to the guide and slide assembly 15 by means of respective bolts 19.
- Each plate block 16 is dimensioned so as to maintain the relative plate 12 , in a scraping operative advanced position, illustrated in Figures 1 and 4, and to allow the backward rotation of the relative assembly 15 and of the relative plate 12 with respect to the rolling element 5 about a hinge axis 20 parallel to the rectilinear direction 13 and orthogonal to axis 7 when the plate 12 meets on the surface 2 a fixed located obstacle.
- each block 16 is replaced by a mechanical hinge and a forcing elastic element and preloaded the hinge to maintain the plate in the scraping operative position.
- each assembly 15 comprises a flat rear metal plate 22 disposed partially in abutment on. a front surface of the respective block 16 and a flat front metal plate 23 disposed parallel one another and spaced from each other by an upper spacer 24 of an amount approximately rounded up to the thickness of the relative plate 12.
- the plates 22 and 23 the spacer 24 and the block 16 are pack-tightened one another by the bolts 19.
- the plates 22 and 23, the spacer 24 and the block 16 delimit one another a seat 27 open downwards, in which an upper portion 12a of the relative plate 12 is slidably inserted, -the remaining portion 12b thereof projects downwards in a cantilever manner beyond the plates 22 e
- Each assembly 15 comprises, furthermore, a further row of bolts 28 disposed below the bolts 19 and crossing both plates 22 and 23.
- Each bolt 28 also crosses a respective slot 30, which is elongated in a substantially vertical direction and is attained in the upper portion 12a of the plate 12.
- each slot has a length measured in a substantially vertical direction variable between 15 and 35. millimeters, conveniently 20 millimeters, and houses with radial play a respective bushing or sleeve 31, in turn crossed with radial play by the stem of the respective bolt 28.
- each upper portion 12a is delimited on the side facing the spacer
- a peripheral surface 33 which delimits with the spacer 24 itself and with part of the plates 22 and 23 an elongated chamber 35, in which a plurality of elastic bodies 36 conveniently made of a single piece of elastomeric material is housed, preferably a polyurethane material and independent from one another.
- Each elastic body 36 is retained in an operative position thereof/ spaced from the other bodies 36 by prominences 37 protruding, in the particular example described, both from the plate 12 and from " the spacer 24.
- each body 36 has an inverted eight shape and comprises two tubular portions 39, which are connected one another by a transverse arm 40 and have respective axes 41 orthogonal to the plates 12,22 and 23 and parallel one another and to bolts 18,19 and 28.
- the tubular portions 39 have outer . diameters greater than the maximum distance d (Fig. 4) of the surface 33 from the spacer 24 so as to push and maintain the respective plate 12 in an extracted position and the bushings 31, together with the stems of the bolts 28 to the upper end of the relative slots 30 ( Figure 4) .
- the bodies 36 of elastomeric material are not made in one piece have different geometries with respect to that indicated by way of example, or are in whole or in part replaced by other elastic elements such as, for example, coil compression springs or leaf springs or other equivalent component elastically yielding.
- the elastic bodies 36 In use, i.e. when the plates 12 scrape the surface 2, the elastic bodies 36, independently of whether elastomeric or metal or a combination thereof, by deforming elastically, each/ according ' to the action received ' from the respective underlying portion of the plate 12 " allow the plate.12 itself to translate or slide within the seat 27 towards the rolling element 5 in a substantially rectilinear direction and/or rotate with respect to the plates 22 and 23 for coupling effect with the play of the plates 22 and 23 themselves to the respective bolts 28, about an instantaneous rotation axis orthogonal to the plates 12, 22 and 23 . and substantially parallel to the bolts 19 and 28.
- each plate 12 according to the entity of the thrust received by the underlying portion of the surface 12 determined by the geometry of the portion of the surface itself moves with respect to the rolling element 5 and with respect to the other plates 22 and 23 and following the profile of the surface 12 so that/ in use, the. lower edge 9 of the knife 8 is found to be rectilinear in case the knife 8 itself slides on a flat surface and at a broken curve when it slides in contact with convex or bumpy surfaces. In both cases, the knife 8 adapting to the geometry of the surface 12 to be cleared clears in the same way any area of the surface 12 itself.
- each block 16 is a rigid block adapted to connect permanently and integrally the respective assembly 15 to the roiling element 5.
- each plate 22 is directly and permanently connected to the rolling element 8. -
- the frame 4 elastically yielding means are provided, and known per se, adapted to allow the backward rotation of the rolling element 5 together with the knife 8 about a hinge, axis practically parallel to the rectilinear direction 13 when the knife 8 meets on the surface 2 a fixed located obstacle.
- the blocks 16 are replaced by a rigid load- bearing or support structure 45, which is common to, and supports all, assemblies 15, and is hinged to the rolling element 5 by means of a hinge 46 elastically preloaded by an elastic device, preferably with wire springs or elastomeric material, generically indicated with 48, to maintain the structure 45 in a reference or limit operating advanced position and allow the structure 45 itself and to the plates 9 to rotate simultaneously backwards with respect to the rolling element 5 about a common hinge axis 47 parallel to the rectilinear direction 13 in the presence of fixed obstacles on the surface 2 to be cleared.
- a hinge 46 elastically preloaded by an elastic device, preferably with wire springs or elastomeric material, generically indicated with 48, to maintain the structure 45 in a reference or limit operating advanced position and allow the structure 45 itself and to the plates 9 to rotate simultaneously backwards with respect to the rolling element 5 about a common hinge axis 47 parallel to the rectilinear direction 13 in the presence of fixed obstacles on the surface 2 to be cleared.
- the blade 1 described may be made to further, modifications ' and variations/ which : do not depart from the . protective scope ' defined by the independent claim.
- the knife 8 could include a number of modules or plates 9 different from that illustrated and for example only two modules and therefore also only two independent plates, although it is obvious that the greater the number of plates 12 the better the knife edge 8 approximates the curvature of the surface 2 and the more accurate is the clearing of the surface 2 itself.
- At least part of the guide and slide devices 15 may be shaped so as to allow only the translation of the relative plate 12 from and to the rolling element 5.
- the plates 12 may be coupled to the rolling element 5 in order to translate or slide only from and to the rolling element 5 itself.
- the lower edge of the knife 8 approximates, in use, the curvature of the surface 12 to be cleared, thereby clearing the surface 12 in a rough but still acceptable manner.
- the clearing of the surface - 12 is much -better, the greater .the number of units 11 and therefore the greater the number of plates 12 , '
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
- Soil Working Implements (AREA)
- Cleaning In General (AREA)
- Harvester Elements (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000106A ITTO20130106A1 (it) | 2013-02-08 | 2013-02-08 | Lama spazzaneve |
PCT/IB2014/058864 WO2014122618A1 (en) | 2013-02-08 | 2014-02-07 | Snowplow blade |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2954117A1 true EP2954117A1 (de) | 2015-12-16 |
EP2954117B1 EP2954117B1 (de) | 2017-02-01 |
Family
ID=48145605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14714334.1A Active EP2954117B1 (de) | 2013-02-08 | 2014-02-07 | Klinge für einen schneepflug |
Country Status (7)
Country | Link |
---|---|
US (1) | US20150376850A1 (de) |
EP (1) | EP2954117B1 (de) |
KR (1) | KR20150135228A (de) |
CA (1) | CA2900677A1 (de) |
IT (1) | ITTO20130106A1 (de) |
RU (1) | RU2015134777A (de) |
WO (1) | WO2014122618A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160333547A1 (en) * | 2015-05-13 | 2016-11-17 | Winter Equipment Company | Reinforced elastomeric blade |
WO2017127928A1 (en) * | 2016-01-26 | 2017-08-03 | Usinage Pro24 Inc. | Sweeping blade device with adjustable blades |
US10196789B1 (en) * | 2016-04-04 | 2019-02-05 | Alamo Group Inc. | Plow trip edge spring sharer |
US20180313048A1 (en) * | 2017-04-26 | 2018-11-01 | Daren Lynch | Connector for securing a snow plow blade to a supporting structure such as a moldboard |
US11629467B2 (en) * | 2019-11-26 | 2023-04-18 | 9251-7747 Quebec Inc. | Ice removal blade assembly for a vehicle |
DE102020125134A1 (de) * | 2020-09-25 | 2022-03-31 | Küper Gmbh & Co. Kg | Räumleiste für den Räumschild eines Schneepfluges |
US11326316B1 (en) * | 2021-09-07 | 2022-05-10 | Northern Supply II, Inc. | Snow plow cutting edge device and cutting edge attachments |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1805933A (en) * | 1930-04-09 | 1931-05-19 | Victor Harold | Tire guard for automobiles |
US3432946A (en) * | 1965-11-09 | 1969-03-18 | Meyer Products Inc | Lifting and pressure unit for snowplows and the like |
US3772803A (en) * | 1972-04-03 | 1973-11-20 | L Cote | Snow plow |
SE433635B (sv) * | 1978-01-12 | 1984-06-04 | Maehler & Soener | Plog for snorojning |
US6125559A (en) * | 1996-12-10 | 2000-10-03 | The Gledhill Road Machinery Co. | Plow trip board biased by elastic torsion joint |
US20030182824A1 (en) * | 2002-03-27 | 2003-10-02 | Coffin Jerry D. | Elastomeric, cord-reinforced plow edge and plow flap |
FI117296B (fi) * | 2004-10-11 | 2006-08-31 | Patria Vammas Oy | Lumiauran teräelementin ripustus |
US8776405B2 (en) * | 2006-11-17 | 2014-07-15 | Adepco Technologies, Corp. | Snow plow for adjusting to surface contours and obstacles |
US7555853B2 (en) * | 2006-11-17 | 2009-07-07 | Adepco Technologies Corp. | Snow plow assembly with resilient snow plow blade mounting structure |
US7891121B2 (en) * | 2007-06-19 | 2011-02-22 | Doug Smoljo | Earthworking implement |
US7543401B2 (en) * | 2007-08-17 | 2009-06-09 | Doug Hughes | Back drag plow |
DE102009051751A1 (de) * | 2009-11-03 | 2011-05-05 | Küper GmbH & Co.KG | Räumleiste für den Räumschild eines Schneepfluges |
CA2698744A1 (fr) * | 2010-04-06 | 2011-10-06 | Jimmy Vigneault | Dispositif de grattage d'une matiere indesirable sur une surface procede de fabrication du dispositif utilisation du dispositif |
US9015967B2 (en) * | 2011-12-21 | 2015-04-28 | Caterpillar Inc. | Adjustable blade rake |
-
2013
- 2013-02-08 IT IT000106A patent/ITTO20130106A1/it unknown
-
2014
- 2014-02-07 RU RU2015134777A patent/RU2015134777A/ru not_active Application Discontinuation
- 2014-02-07 CA CA2900677A patent/CA2900677A1/en not_active Abandoned
- 2014-02-07 WO PCT/IB2014/058864 patent/WO2014122618A1/en active Application Filing
- 2014-02-07 KR KR1020157022292A patent/KR20150135228A/ko not_active Application Discontinuation
- 2014-02-07 US US14/766,176 patent/US20150376850A1/en not_active Abandoned
- 2014-02-07 EP EP14714334.1A patent/EP2954117B1/de active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2014122618A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20150376850A1 (en) | 2015-12-31 |
ITTO20130106A1 (it) | 2014-08-09 |
EP2954117B1 (de) | 2017-02-01 |
RU2015134777A (ru) | 2017-03-15 |
WO2014122618A8 (en) | 2015-04-09 |
WO2014122618A1 (en) | 2014-08-14 |
CA2900677A1 (en) | 2014-08-14 |
KR20150135228A (ko) | 2015-12-02 |
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