EP4026949A1 - Arrangement de bandes racleuses de raclage et cassette de bandes racleuses - Google Patents
Arrangement de bandes racleuses de raclage et cassette de bandes racleuses Download PDFInfo
- Publication number
- EP4026949A1 EP4026949A1 EP22020005.9A EP22020005A EP4026949A1 EP 4026949 A1 EP4026949 A1 EP 4026949A1 EP 22020005 A EP22020005 A EP 22020005A EP 4026949 A1 EP4026949 A1 EP 4026949A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- scraper
- segments
- strip
- cassette
- blade
- 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
- 238000006073 displacement reaction Methods 0.000 claims abstract description 16
- 150000003839 salts Chemical class 0.000 description 6
- 238000007790 scraping Methods 0.000 description 4
- 238000011109 contamination Methods 0.000 description 2
- 230000036316 preload Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H5/00—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
- E01H5/04—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material
- E01H5/06—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by non-driven elements, e.g. scraper blades, snow-plough blades, scoop blades
- E01H5/061—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by non-driven elements, e.g. scraper blades, snow-plough blades, scoop blades by scraper blades
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H5/00—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
- E01H5/04—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material
- E01H5/06—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by non-driven elements, e.g. scraper blades, snow-plough blades, scoop blades
- E01H5/061—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
Definitions
- the invention relates to a scraper assembly for attachment to a plow blade, the scraper assembly comprising adjustable scraper segments.
- the invention further relates to a scraper cartridge for use in a scraper assembly according to the invention.
- the scraper bar can be made of steel, for example.
- a scraper is typically a plate-like member that extends substantially the full length of the plow blade.
- scraper arrangements Since a rigid scraper cannot adapt to uneven ground, scraper arrangements have already become known which include scraper segments that can be adjusted in the height direction. Such training is for example in the U.S.5743032 and the SE 454279 described.
- the heavy traffic causes significant ruts in the road surface in many areas.
- the streets are usually cambered so that surface water can be drained off to the side can.
- the roads are often in poor condition and have potholes and the like.
- a plow with a width of 3 m which for stability reasons consists of two or three rigid elements that can move a little relative to each other, has relatively poor adaptability to punctiform grooves or holes.
- the present invention therefore aims to further develop a scraper blade arrangement in such a way that the adaptability is increased and the clearing result on uneven road surfaces is improved.
- the present invention also aims to make it easier to replace the scraper rails and to increase the stability of adjustable scraper rail elements.
- the invention essentially provides for a scraper blade arrangement of the type mentioned at the outset that the adjustable scraper blade segments comprise at least two groups of adjustable scraper blade segments, with the adjustable scraper blade segments of one group each being arranged in a scraper blade cassette in which the scraper blade segments are arranged in a transverse to a scraping edge of the scraper blade segments are guided adjustable against a spring force, wherein the scraper blade segments in the respective scraper blade cartridge can be displaced independently of one another between a retracted and an extended position, and that the scraper blade cartridge has a sliding plate on which the scraper blade segments slide during the displacement movement.
- the scraper blade arrangement according to the invention thus consists of a combination of a sliding plate with a large number of adjustable scraper blade segments. Due to the fact that the scraper bar segments can be adjusted independently of one another in the height direction, ie transversely to the scraper edge, they can adapt to bumps in the road while at the same time the rigid scraper edge remains in contact with the road surface. When the individual scraper segments are extended downwards, they can also scrape the snow off lower-lying areas of the road, such as grooves or holes. If, on the other hand, there is no space below the scraping edge of the rigid scraper bar for extending the scraper bar segments, they remain in the upwardly retracted position due to the plow blade's own weight.
- a further feature according to the invention lies in the subdivision of the scraper segments arranged along the longitudinal extent of the rigid scraper into at least two, preferably at least three groups of scraper segments.
- the adjustable scraper blade segments of a group are each combined in a scraper blade cartridge in which the scraper blade segments are adjustably guided in a direction running transversely to a scraper edge of the scraper blade segments.
- the arrangement of a plurality of scraper segments in a scraper cartridge enables the joint assembly and disassembly of the scraper segments, so that downtimes are minimized.
- the scraper blade cassette is regarded as a wearing part that can be easily replaced if necessary.
- the scraper rail segments can be slid parallel to the sliding plate on the latter.
- the scraper segments can be supported on the sliding plate, so that the scraping forces that occur when they come into contact with the road are not only absorbed by the individual scraper segments, but also by the sliding plate behind them.
- the scraper ledge segments are designed as flat, plate-like elements, the plate plane of which runs parallel to the plane of the rigid slide plate.
- the feature that the scraper segments slide on the rigid skid plate during translational movement does not mean that the scraper segments and the rigid skid plate must be in direct contact. Gliding can also be mediated by an intermediate layer or an intermediate element which preferably has friction-optimized properties.
- the sliding plate has a fastening section which is fastened to a scraper blade carrier.
- the scraper blade cassette can be designed as a standard component, while any necessary adaptation to different assembly situations, e.g. different hole patterns of the plow blade or the scraper blade carrier, can be made by means of a correspondingly adapted design of the sliding plate.
- a preferred embodiment provides that the fastening section of the sliding plate is fastened to the scraper bar carrier with the aid of fastening elements, in particular bolts, which pass through bores formed in the fastening section is attached.
- fastening elements in particular bolts
- the bores are designed as countersunk bores, which allows a countersunk arrangement of the head of the fastening elements or screw bolts.
- scraper blade cassette has a housing for the open element on the side facing the cover element Includes scraper segments.
- the open housing is closed by the cover element as soon as the housing is attached to the scraper rail support.
- the scraper segments each have an elongated guide slot running in the direction of displacement and that positioning bushings are fastened to the sliding plate, which pass through the guide slot and form a guide element for the displacement movement of the scraper segments .
- the positioning bushings each have a bore with an internal thread for a fastening screw, with which a plate-like cover element of the scraper blade cassette is fastened.
- each scraper blade segment is assigned at least one spring element arranged in the scraper blade cartridge, in particular a helical spring, against which the respective scraper blade segment can be adjusted.
- two adjacent scraper segments have form-fitting elements that interact with one another laterally and limit the relative displacement movement of the scraper segments. This limits the maximum travel of each scraper segment relative to its adjacent scraper segment. If the maximum permissible stroke relative to the adjacent scraper segment is significantly smaller than the stroke that is possible without limitation, e.g. less than half the otherwise possible stroke, this means that a scraper segment cannot be fully extended individually, but only in the Course with the neighboring scraper segments.
- the form-fitting elements interacting with one another are formed by a laterally projecting pin of one scraper blade segment and by a lateral groove of the other scraper blade segment, into which the pin engages.
- An independent aspect of the invention relates to a scraper blade cartridge for use in a scraper blade arrangement according to the invention, comprising a plurality of scraper blade segments, which are adjustably guided in the scraper blade cartridge against a spring force in a direction running transversely to a scraper edge of the scraper blade segments, the scraper blade segments in the scraper blade cartridge being independent of one another are displaceable between a retracted and an extended position.
- the scraper segments are here arranged so that they protrude with their section having the scraping edge from the scraper strip cartridge.
- At least one spring element arranged in the scraper blade cassette is preferably assigned to each scraper blade segment, against which the respective scraper blade segment can be adjusted.
- the scraper blade cassette preferably forms a housing for the scraper blade segments that is open on the side facing the cover element.
- the scraper blade segments preferably each have an elongated guide slot running in the direction of displacement, positioning bushings being attached to the scraper blade cartridge, which pass through the guide slot and form a guide element for the displacement movement of the scraper blade segments.
- the positioning bushings preferably have a bore with an internal thread for a fastening screw, with which a plate-like cover element of the scraper blade cassette is fastened.
- a plow blade of a snow plow In 1 denoted by 1 is a plow blade of a snow plow.
- the plow blade 1 carries on its lower side facing the road surface a scraper blade arrangement 2, which comprises a plurality of scraper blade cassettes 4 adjoining one another in the longitudinal direction, of which in 1 only one is shown.
- the scraper blade cassette 4 comprises a plurality of scraper blade segments 5 which are guided in the direction of the double arrow 6 so that they can be displaced independently of one another.
- the scraper blade arrangement 2 is fastened to a scraper blade support 7 which is L-shaped in cross-section.
- the scraper blade assembly 2 includes a slide plate 3 which is located in a mounting portion 9 between the scraper blade segment 5 and a leg of the scraper blade support 7 .
- the skid plate 3 is attached to the scraper support 7 in the attachment portion 9 by means of bolts 10, the head of the bolts 10 being countersunk in the rigid skid plate 3 to allow the adjustable scraper segments 5 to slide along a planar surface on the skid plate 3.
- the sliding surface of the sliding plate 3 is in 2 example shown by a slide pad 11 is formed.
- the adjustable scraper segments 5 are held in the scraper cartridge 4, with the help of positioning bushings 12 and 13, for example by means of a Welded connection are attached to the slide plate 3 and have an internal thread into which fastening screws 16 are screwed in order to attach a plate-like cover element 8 of the scraper blade cassette 4 to form a housing on the slide plate 3.
- the scraper strip segment 5 has a guide slot 15 ( 3 ) in which the positioning bushings 12 and 13 are arranged.
- Coil springs 14 act on the scraper blade segments 5, as is better shown in 3 is evident.
- two adjacent scraper rail segments 5 each have laterally interacting form-fitting elements, namely a pin 18 and a groove 19, in which the pin 18 engages.
- the height of the groove 19 in the direction of the displacement movement 6 limits the stroke of a scraper segment 5 relative to the adjacent scraper segment 5.
- the scraper assembly has the following characteristics. Basically, the system consists of two assemblies, the sliding plate and the scraper blade cassette with the scraper blade segments.
- the sliding plate serves as a connection to the shield. It is bolted to the shield body together with the existing rigid scraper bar. It should be noted that the existing holes must be countersunk to ensure a level sliding surface for the scraper segments.
- the advantage of this sliding plate lies in its independence from the hole patterns of different plow types. It is the existing hole pattern of the plow to be mounted onto the sliding plate and the pre-assembled scraper blade cassette with the vertically movable, spring-loaded scraper blade segments is mounted on it.
- the permanently welded threaded bushes are located on the sliding plate. Together with the hardened drill bushings (wear-resistant) mounted on them, they serve as a guide for the spring-loaded scraper blade segments.
- the cover element is positioned and screwed with it. This guarantees stable lateral guidance of the vertically movable scraper blade segments.
- the base body also has a sliding surface on which the movable scraper segments slide and are supported.
- the spring holders with the preloaded springs are also pre-assembled on the base body, which enable the wearing elements to be changed particularly easily.
- the pre-assembled base body is screwed to the scraper blade mount of the shield body during assembly.
- the scraper rail segments are then inserted individually. This has the great advantage that the assembly and replacement of worn scraper segments can be carried out quickly without heavy lifting.
- the pre-assembled cover unit is then positioned and screwed onto the system using the threaded bushings.
- the cover unit consists of a cover plate, a welded-on slide plate with cutouts to absorb dirt and minimize friction, and a seal that protects the system from contamination from above.
- the solution using your own cover unit has the advantage of simple assembly.
- the spring preload force of the individual scraper segments is dimensioned in such a way that they are fully retracted when used on level roads, so the plow rests on both the scraper segments.
- the individual scraper segments adapt optimally to the given surface due to the spring preload force.
- a further advantage of the scraper arrangement according to the invention is that the snow can also be pulled out of driveways or cul-de-sacs, i.e. in the opposite clearing direction.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Repair (AREA)
- Preliminary Treatment Of Fibers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA7/2021A AT523738B8 (de) | 2021-01-12 | 2021-01-12 | Schürfleistenanordnung und Schürfleistenkassette |
Publications (3)
Publication Number | Publication Date |
---|---|
EP4026949A1 true EP4026949A1 (fr) | 2022-07-13 |
EP4026949C0 EP4026949C0 (fr) | 2023-11-15 |
EP4026949B1 EP4026949B1 (fr) | 2023-11-15 |
Family
ID=78474892
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP22020005.9A Active EP4026949B1 (fr) | 2021-01-12 | 2022-01-11 | Arrangement de bandes racleuses de raclage et cassette de bandes racleuses |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP4026949B1 (fr) |
AT (1) | AT523738B8 (fr) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5743032A (en) | 1993-01-22 | 1998-04-28 | Vauhkonen; Pertti | Plough blade arrangement |
WO2011123956A1 (fr) * | 2010-04-06 | 2011-10-13 | Jimmy Vigneault | Dispositif de lame racleuse pour nettoyer une surface et son procédé |
WO2016058106A1 (fr) * | 2014-10-17 | 2016-04-21 | Jimmy Vigneault | Dispositif de lame racleuse à segments de lame juxtaposés présentant un raccordement à pivot entre bords de contact |
-
2021
- 2021-01-12 AT ATA7/2021A patent/AT523738B8/de active
-
2022
- 2022-01-11 EP EP22020005.9A patent/EP4026949B1/fr active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5743032A (en) | 1993-01-22 | 1998-04-28 | Vauhkonen; Pertti | Plough blade arrangement |
WO2011123956A1 (fr) * | 2010-04-06 | 2011-10-13 | Jimmy Vigneault | Dispositif de lame racleuse pour nettoyer une surface et son procédé |
WO2016058106A1 (fr) * | 2014-10-17 | 2016-04-21 | Jimmy Vigneault | Dispositif de lame racleuse à segments de lame juxtaposés présentant un raccordement à pivot entre bords de contact |
Also Published As
Publication number | Publication date |
---|---|
AT523738B8 (de) | 2022-02-15 |
EP4026949C0 (fr) | 2023-11-15 |
AT523738A4 (de) | 2021-11-15 |
AT523738B1 (de) | 2021-11-15 |
EP4026949B1 (fr) | 2023-11-15 |
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