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WO2012169950A1 - Method and device related to snow removal - Google Patents

Method and device related to snow removal Download PDF

Info

Publication number
WO2012169950A1
WO2012169950A1 PCT/SE2012/000087 SE2012000087W WO2012169950A1 WO 2012169950 A1 WO2012169950 A1 WO 2012169950A1 SE 2012000087 W SE2012000087 W SE 2012000087W WO 2012169950 A1 WO2012169950 A1 WO 2012169950A1
Authority
WO
WIPO (PCT)
Prior art keywords
snow
side brushes
track
liquid container
removal
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.)
Ceased
Application number
PCT/SE2012/000087
Other languages
French (fr)
Inventor
Ulf Marklund
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.)
RAILCARE GROUP AB
Original Assignee
RAILCARE GROUP 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 RAILCARE GROUP AB filed Critical RAILCARE GROUP AB
Priority to EP12797298.2A priority Critical patent/EP2705195B1/en
Priority to RU2013151316/13A priority patent/RU2605194C2/en
Publication of WO2012169950A1 publication Critical patent/WO2012169950A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • E01H8/00—Removing undesirable matter from the permanent way of railways; Removing undesirable matter from tramway rails
    • E01H8/10—Removing undesirable matter from rails, flange grooves, or the like railway parts, e.g. removing ice from contact rails, removing mud from flange grooves
    • 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
    • E01H8/00—Removing undesirable matter from the permanent way of railways; Removing undesirable matter from tramway rails
    • E01H8/02—Methods or apparatus for removing ice or snow from railway tracks, e.g. using snow-ploughs ; Devices for dislodging snow or ice which are carried or propelled by tramway vehicles ; Moving or removing ballast
    • E01H8/06—Methods or apparatus for removing ice or snow from railway tracks, e.g. using snow-ploughs ; Devices for dislodging snow or ice which are carried or propelled by tramway vehicles ; Moving or removing ballast essentially by driven tools clearing instruments, e.g. rotary cutting tools or brushes
    • 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
    • E01H5/10—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice by application of heat for melting snow or ice, whether cleared or not, combined or not with clearing or removing mud or water, e.g. burners for melting in situ, heated clearing instruments; Cleaning snow by blowing or suction only
    • 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
    • E01H8/00—Removing undesirable matter from the permanent way of railways; Removing undesirable matter from tramway rails
    • E01H8/02—Methods or apparatus for removing ice or snow from railway tracks, e.g. using snow-ploughs ; Devices for dislodging snow or ice which are carried or propelled by tramway vehicles ; Moving or removing ballast
    • E01H8/08—Methods or apparatus for removing ice or snow from railway tracks, e.g. using snow-ploughs ; Devices for dislodging snow or ice which are carried or propelled by tramway vehicles ; Moving or removing ballast by application of heat, e.g. by means of heated clearing instruments, melting in situ; Clearing devices which melt the dislodged snow; Clearing exclusively by means of rays or streams or gas or stream, or by suction

Definitions

  • the present invention refers to a method for the removal of snow from tracks or track areas for track-bound vehicles in accordance with the preamble of claim 1.
  • the invention also concerns a device.
  • a goal of the present invention is to make available a method and a device that are extremely advantageous for the removal of snow from snowy areas.
  • the goal of the invention is met in that the method and the device have the characteristics indicated in the claims.
  • the invention makes possible a time-effective collection and removal of snow where the removal of collected snow takes place under volume reduction.
  • the invention has both technical and economic advantages.
  • Figure 1 shows a device in accordance with the invention in a perspective view.
  • Figure 2 shows the snow collection device of the device at work.
  • Figure 3 shows a longitudinal section through the snow collection device.
  • Figure 4 shows the snow collection device of the device with its side brushes in parking position.
  • Figure 5 shows a transport of the device between two positions of use.
  • the snow removal device 1 shown in figure 1 comprises a snow collection device 10, a snow melting device 50, and a liquid container 70.
  • the components included in the device 1 are normally arranged as in a train set.
  • the snow melting device 50 is carried by a first railway carriage 51 and the liquid container 70 is carried by another railway carriage 71.
  • Railway wheels 80 are shown in the figures.
  • Coupling devices (not shown) are arranged between the carriages.
  • a driving device in the form, for example, of a locomotive 100 is coupled to the back end of the device 1 for, among other things, taking care of driving forward along a railway track whose rails are designated with 151 and 152.
  • a driver's cab 200 is arranged in the front end of the first carriage 51 , as a result of which an operator has a good view of the snow collection device 10 during forward travel in the working direction A of the device 1.
  • the snow collection device 10 is built up around a frame 11 that is coupled to the front end of the first railway carriage 51.
  • Railway wheels 12 are provided for further supporting of the frame 11.
  • the snow collection device 10 comprises a snow collection aggregate 20 with a rotating brush 21 (arrow B) and at least one feeder screw 22 that feeds the snow from two directions and via a possible fan (not shown) to a transport conduit 30.
  • a snow thrower The rotating brush 21 extends like the feeder screw/the feeder screws substantially over the entire width of the snow collection aggregate 20, that brings it about that the desired snow clearance of a railway track can be achieved in this way.
  • two side brushes 41 , 42 are arranged at the front edge of the frame 11 , as is apparent from the figures.
  • the side brushes 41 , 42 are in a working position where they form a V-formation and are driven in a rotational direction that sweeps the snow in on the track and inside the working width of the snow collection aggregate 20.
  • the conduit 30 empties into the snow melting device 50, that is set up to melt the snow that comes into the snow melting device 50 via the snow collection device 10 and via the conduit 30.
  • the detailed construction of the device 50 can be varied in many different ways but often a pouring on of warm water, water vapour, etc. is used. Alternatively, some other type of heat supply is used in order to convert the snow to melted water.
  • Melted water formed in the snow melting device 50 is transferred to the liquid container 70 via a line that is not shown.
  • the accumulated capacity of the liquid container 70 is especially valuable since the method in accordance with the invention can accumulate orders of magnitude of a 5-10 times greater volume of snow than its own volume. This brings about great advantages of transport and increased effectiveness as concerns the clearance of snow.
  • a saving of energy and a reduced risk of freezing can be obtained by heat-insulating the snow melting arrangement 50 and the liquid container 70.
  • the operator present in the driver's compartment also remotely manoeuvres the locomotive 100 responsible for the transport movement of the device.
  • the side brushes 41 , 42 are pivoted inwards and hoisted up to an inactive parking position.
  • Figure 5 exemplifies a carriage-borne transport of the snow removal arrangement 1 to a new site of use, whereby the snow collection arrangement 10 is transported on a coupled carriage 300.
  • the snow removal device 1 There is also the possibility here of arranging the snow removal device 1 so that it can be lifted relative to the carriage 51 so that the transport can take place without the carriage 300.
  • side brushes 41 , 42 can be provided with such a reach and ability to be raised that they can be used, for example, to sweep platforms.
  • the side brushes 41 , 42 can be raised up and lowered down individually relative to the frame 11 with the aid of arranged controls and, for example, hydraulic cylinders.
  • the side brushes 41 , 42 can be pivoted in and out individually relative to the frame 11 with the aid of arranged swivel bearings and, for example, hydraulic cylinders.
  • the side brushes 41 , 42 can be driven in rotation individually by hydraulic motors.
  • the side brushes 41 , 42 can be individually manoeuvred and driven, they can be given different adjustments and jobs between themselves, which is obviously advantageous. For example, one side brush can be working while the other side brush is in a parked position, and so forth. It is of course apparent that many variations are possible within the scope of the present inventive concept. Variations of components are naturally possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Abstract

The invention relates to a method for the removal of snow from tracks or track areas for track-bound vehicles. The snow is transported by a snow collection device (10) to a snow melting device (50) where the snow is melted down to water, after which the melt water is transported to a liquid container (70) from which the melt water is tapped off as required. The invention also relates to a device.

Description

Method and Device related to Snow Removal
Technical area
The present invention refers to a method for the removal of snow from tracks or track areas for track-bound vehicles in accordance with the preamble of claim 1. The invention also concerns a device.
Background of the invention
There is a problem in achieving a time-effective and adequate clearing of snow from tracks or track areas for track-bound vehicles. An example that can be cited is the clearing of snow from railway tracks and in particular when several tracks are arranged abreast, as is normally the case in railway stations, railway yards, etc. A traditional ploughing off of tracks where the snow lands on both sides of a track entails problems with the adjacent tracks since the snow lands on them. Even switches arranged between tracks are difficult to free from snow.
Goal of the invention
A goal of the present invention is to make available a method and a device that are extremely advantageous for the removal of snow from snowy areas. The goal of the invention is met in that the method and the device have the characteristics indicated in the claims.
Advantages of the invention
The invention makes possible a time-effective collection and removal of snow where the removal of collected snow takes place under volume reduction. The invention has both technical and economic advantages.
Short description of the drawings
An exemplary embodiment of the invention will be described in detail in the following with reference made to the attached drawings.
Figure 1 shows a device in accordance with the invention in a perspective view.
Figure 2 shows the snow collection device of the device at work.
Figure 3 shows a longitudinal section through the snow collection device. Figure 4 shows the snow collection device of the device with its side brushes in parking position.
Figure 5 shows a transport of the device between two positions of use.
Detailed description of the exemplary embodiment shown
The snow removal device 1 shown in figure 1 comprises a snow collection device 10, a snow melting device 50, and a liquid container 70. The components included in the device 1 are normally arranged as in a train set. In the exemplary embodiment shown the snow melting device 50 is carried by a first railway carriage 51 and the liquid container 70 is carried by another railway carriage 71. Railway wheels 80 are shown in the figures. Coupling devices (not shown) are arranged between the carriages. Normally, a driving device in the form, for example, of a locomotive 100 is coupled to the back end of the device 1 for, among other things, taking care of driving forward along a railway track whose rails are designated with 151 and 152.
A driver's cab 200 is arranged in the front end of the first carriage 51 , as a result of which an operator has a good view of the snow collection device 10 during forward travel in the working direction A of the device 1.
The snow collection device 10 is built up around a frame 11 that is coupled to the front end of the first railway carriage 51. Railway wheels 12 are provided for further supporting of the frame 11.
The snow collection device 10 comprises a snow collection aggregate 20 with a rotating brush 21 (arrow B) and at least one feeder screw 22 that feeds the snow from two directions and via a possible fan (not shown) to a transport conduit 30. What was just cited recalls the method of operation for a so-called snow thrower. The rotating brush 21 extends like the feeder screw/the feeder screws substantially over the entire width of the snow collection aggregate 20, that brings it about that the desired snow clearance of a railway track can be achieved in this way.
However, there is sometimes a need to increase the width of the snow clearance, for example, in railway yards. According to the invention two side brushes 41 , 42 are arranged at the front edge of the frame 11 , as is apparent from the figures. In figures 1-3 the side brushes 41 , 42 are in a working position where they form a V-formation and are driven in a rotational direction that sweeps the snow in on the track and inside the working width of the snow collection aggregate 20.
The conduit 30 empties into the snow melting device 50, that is set up to melt the snow that comes into the snow melting device 50 via the snow collection device 10 and via the conduit 30. The detailed construction of the device 50 can be varied in many different ways but often a pouring on of warm water, water vapour, etc. is used. Alternatively, some other type of heat supply is used in order to convert the snow to melted water.
Melted water formed in the snow melting device 50 is transferred to the liquid container 70 via a line that is not shown. In some cases it is possible to make a continuous discharge of liquid to the track surroundings from the liquid container 70. In other cases, restrictions apply that require that one is forced to localize the discharge of liquid to indicated areas. In such cases the accumulated capacity of the liquid container 70 is especially valuable since the method in accordance with the invention can accumulate orders of magnitude of a 5-10 times greater volume of snow than its own volume. This brings about great advantages of transport and increased effectiveness as concerns the clearance of snow.
It is noted that certain auxiliary equipment, drive equipment and safety equipment have been omitted in the drawings in order to increase the clarity.
A saving of energy and a reduced risk of freezing can be obtained by heat-insulating the snow melting arrangement 50 and the liquid container 70.
During the clearing of snow by the device in accordance with the invention it can be arranged that the operator present in the driver's compartment also remotely manoeuvres the locomotive 100 responsible for the transport movement of the device. In figure 4 the side brushes 41 , 42 are pivoted inwards and hoisted up to an inactive parking position.
Figure 5 exemplifies a carriage-borne transport of the snow removal arrangement 1 to a new site of use, whereby the snow collection arrangement 10 is transported on a coupled carriage 300. There is also the possibility here of arranging the snow removal device 1 so that it can be lifted relative to the carriage 51 so that the transport can take place without the carriage 300.
It is apparent that the side brushes 41 , 42 can be provided with such a reach and ability to be raised that they can be used, for example, to sweep platforms.
Normally, the side brushes 41 , 42 can be raised up and lowered down individually relative to the frame 11 with the aid of arranged controls and, for example, hydraulic cylinders.
Normally, the side brushes 41 , 42 can be pivoted in and out individually relative to the frame 11 with the aid of arranged swivel bearings and, for example, hydraulic cylinders.
Normally, the side brushes 41 , 42 can be driven in rotation individually by hydraulic motors.
It is apparent that the detailed construction applied to the movement pattern of the side brushes 41 , 42 can of course be varied over what has been exemplified, whereby, for example, the side brushes can also be moved individually in oblique positions in another joint or direction.
Due to the fact that the side brushes 41 , 42 can be individually manoeuvred and driven, they can be given different adjustments and jobs between themselves, which is obviously advantageous. For example, one side brush can be working while the other side brush is in a parked position, and so forth. It is of course apparent that many variations are possible within the scope of the present inventive concept. Variations of components are naturally possible.
Thus, the invention is not limited to what was shown and described but rather changes and modifications are of course possible within the scope of the attached claims.

Claims

Claims
1. A method for the removal of snow from tracks or track areas for track-bound vehicles, characterized in that the snow is transported by a snow collection device (10) to a snow melting device (50) where the snow is melted down to water, after which the melted water is transported to a liquid container (70) from which the melted water is tapped off as required, that side brushes (41 , 42) are used that move snow located on the sides to the working area of the snow collection device (10), and that the side brushes (41 , 42) can be hoisted up and pivoted into a parking position.
2. The method according to claim 1 , characterized in that the side brushes (41 , 42) can be individually manoeuvred.
3. The method according to claim 1 or 2, characterized in that the snow collection device (10), the snow melting device (50) and the liquid container (70) are arranged on a train set (51 , 71 , 100).
4. A device for the removal of snow from tracks or track areas for track-bound vehicles, characterized in that the device (1) comprises a snow collection device (10) that comprises a snow collection aggregate (20) that comprises a rotating brush (21), and that the device (1) comprises two rotating side brushes (41 , 42) that can be hoisted up and pivoted into a parking position.
5. The device according to claim 4, characterized in that the side brushes (41 , 42) are arranged for individual manoeuvring.
6. The device according to claim 4 or 5, characterized in that the snow collection device (10) is arranged to communicate with a snow melting device (50) that for its part is arranged to communicate with a liquid container (70).
7. The device according to any one of claims 4-6, characterized in that the device (1) is integrated with a train set (51 , 71 , 100).
PCT/SE2012/000087 2011-06-08 2012-06-05 Method and device related to snow removal Ceased WO2012169950A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12797298.2A EP2705195B1 (en) 2011-06-08 2012-06-05 Method and device related to snow removal
RU2013151316/13A RU2605194C2 (en) 2011-06-08 2012-06-05 Method and device for snow removal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1100447A SE535937C2 (en) 2011-06-08 2011-06-08 Method and apparatus for removing snow
SESE1100447-0 2011-06-08

Publications (1)

Publication Number Publication Date
WO2012169950A1 true WO2012169950A1 (en) 2012-12-13

Family

ID=47296286

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2012/000087 Ceased WO2012169950A1 (en) 2011-06-08 2012-06-05 Method and device related to snow removal

Country Status (4)

Country Link
EP (1) EP2705195B1 (en)
RU (1) RU2605194C2 (en)
SE (1) SE535937C2 (en)
WO (1) WO2012169950A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104233990A (en) * 2014-09-13 2014-12-24 芜湖市恒浩机械制造有限公司 Integrated cleaning-crushing machine
CN105648973A (en) * 2014-12-31 2016-06-08 中国铁路总公司 Rail snow remover
CN106968215A (en) * 2017-05-22 2017-07-21 株洲中车特种装备科技有限公司 A kind of steel beam with box shape track deicing vehicle
CN107022971A (en) * 2016-01-29 2017-08-08 北京控股磁悬浮技术发展有限公司 A kind of medium-and low-speed maglev engineering working vehicle with snow removing ice-melt function
CN107988989A (en) * 2018-01-03 2018-05-04 西南交通大学 A kind of clear dirt deicing vehicle of track girder and suspension type monorail traffic system
CN108442303A (en) * 2017-09-06 2018-08-24 赵边疆 Three round brush combined snow-removing machines
CN109555061A (en) * 2017-09-26 2019-04-02 比亚迪股份有限公司 Rail vehicle and Vehicle snow remover for rail vehicle
CN110161073A (en) * 2018-02-06 2019-08-23 重庆熵臻科技有限公司 A kind of anti-sedimentation type freezing-thawing test machine convenient for clamping
FR3086304A1 (en) * 2018-09-25 2020-03-27 Frederic Charvet SNOW CLEANING EQUIPMENT WITH TWO ROTATING BRUSHES V-ARRANGEMENTS
CN111605571A (en) * 2020-04-27 2020-09-01 金华职业技术学院 A track detection car

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103498440B (en) * 2013-10-10 2015-05-13 鞍钢集团矿业公司 Railway crossing sweeping machine
CN106522148A (en) * 2016-12-30 2017-03-22 株洲中车特种装备科技有限公司 Ice and snow removal vehicle for straddle-type monorail viaduct
CN110656616A (en) * 2018-06-29 2020-01-07 比亚迪股份有限公司 Snowplowing vehicles for straddle tracks
CN110541387A (en) * 2019-09-18 2019-12-06 东莞市亿玩劳保用品有限公司 An automatic cleaning device along the railway
CN110685251B (en) * 2019-10-14 2021-07-09 安徽省徽腾智能交通科技有限公司 Snow remover for railway track
CN114718002B (en) * 2022-03-29 2024-01-26 吕梁学院 A heating device for a railway turnout snowmelt locking frame
CN114837117B (en) * 2022-06-07 2024-05-28 杨广武 Contact rail deicing snow device and deicing snow method thereof

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US3886675A (en) * 1974-05-17 1975-06-03 Canron Inc Adjustable auger cover for snow blower
US5956872A (en) * 1997-09-11 1999-09-28 Mavrianos; Kostas Self contained snow removal apparatus

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CH329289A (en) * 1958-01-09 1958-04-30 Peter Ag Konrad Road sweeper
US4091492A (en) * 1977-01-27 1978-05-30 Madison-Kipp Corporation Cleaning device for conveyor system rail
US4741072A (en) * 1987-02-17 1988-05-03 Wilkerson Kenneth R Railroad track cleaner
CA2153943C (en) * 1995-07-14 2000-05-23 Randy Falardeau A method and device for cleaning the ties of railroad tracks

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US1335637A (en) * 1918-06-08 1920-03-30 Charles E Barrie Road-sweeper
US2729000A (en) * 1951-05-24 1956-01-03 Wm Bros Boiler And Mfg Company Snow melting apparatus
US3886675A (en) * 1974-05-17 1975-06-03 Canron Inc Adjustable auger cover for snow blower
US5956872A (en) * 1997-09-11 1999-09-28 Mavrianos; Kostas Self contained snow removal apparatus

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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104233990B (en) * 2014-09-13 2016-03-09 芜湖市恒浩机械制造有限公司 A kind of cleaning crushing all-in-one machine
CN104233990A (en) * 2014-09-13 2014-12-24 芜湖市恒浩机械制造有限公司 Integrated cleaning-crushing machine
CN105648973A (en) * 2014-12-31 2016-06-08 中国铁路总公司 Rail snow remover
CN107022971B (en) * 2016-01-29 2019-03-22 北京控股磁悬浮技术发展有限公司 A kind of medium-and low-speed maglev engineering working vehicle with snow removing ice-melt function
CN107022971A (en) * 2016-01-29 2017-08-08 北京控股磁悬浮技术发展有限公司 A kind of medium-and low-speed maglev engineering working vehicle with snow removing ice-melt function
CN106968215A (en) * 2017-05-22 2017-07-21 株洲中车特种装备科技有限公司 A kind of steel beam with box shape track deicing vehicle
CN108442303A (en) * 2017-09-06 2018-08-24 赵边疆 Three round brush combined snow-removing machines
CN109555061A (en) * 2017-09-26 2019-04-02 比亚迪股份有限公司 Rail vehicle and Vehicle snow remover for rail vehicle
CN109555061B (en) * 2017-09-26 2021-01-19 比亚迪股份有限公司 Rail vehicle and vehicle-mounted snow removal device for rail vehicle
CN107988989A (en) * 2018-01-03 2018-05-04 西南交通大学 A kind of clear dirt deicing vehicle of track girder and suspension type monorail traffic system
CN110161073A (en) * 2018-02-06 2019-08-23 重庆熵臻科技有限公司 A kind of anti-sedimentation type freezing-thawing test machine convenient for clamping
CN110161073B (en) * 2018-02-06 2022-06-10 成都晓枫商务信息咨询有限公司 Prevent deposiing type freeze thawing test machine convenient to it is tight
FR3086304A1 (en) * 2018-09-25 2020-03-27 Frederic Charvet SNOW CLEANING EQUIPMENT WITH TWO ROTATING BRUSHES V-ARRANGEMENTS
EP3628780A1 (en) * 2018-09-25 2020-04-01 Frédéric Charvet Vehicle for the preparation of ski pists with a snow removal equipment
CN111605571A (en) * 2020-04-27 2020-09-01 金华职业技术学院 A track detection car
CN111605571B (en) * 2020-04-27 2021-08-27 金华职业技术学院 Track detection trolley

Also Published As

Publication number Publication date
SE535937C2 (en) 2013-02-26
EP2705195B1 (en) 2016-08-24
RU2013151316A (en) 2015-07-20
EP2705195A1 (en) 2014-03-12
RU2605194C2 (en) 2016-12-20
SE1100447A1 (en) 2012-12-09
EP2705195A4 (en) 2014-10-29

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