EP1564332B1 - Fraiseuse et procédé pour travailler le sol - Google Patents

Fraiseuse et procédé pour travailler le sol Download PDF

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Publication number
EP1564332B1
EP1564332B1 EP05002009A EP05002009A EP1564332B1 EP 1564332 B1 EP1564332 B1 EP 1564332B1 EP 05002009 A EP05002009 A EP 05002009A EP 05002009 A EP05002009 A EP 05002009A EP 1564332 B1 EP1564332 B1 EP 1564332B1
Authority
EP
European Patent Office
Prior art keywords
transport
channel
milling
transport device
channel section
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.)
Expired - Lifetime
Application number
EP05002009A
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German (de)
English (en)
Other versions
EP1564332A3 (fr
EP1564332A2 (fr
Inventor
Christian Berning
Herbert Lange
Dieter Simons
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.)
Wirtgen GmbH
Original Assignee
Wirtgen GmbH
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 Wirtgen GmbH filed Critical Wirtgen GmbH
Publication of EP1564332A2 publication Critical patent/EP1564332A2/fr
Publication of EP1564332A3 publication Critical patent/EP1564332A3/fr
Application granted granted Critical
Publication of EP1564332B1 publication Critical patent/EP1564332B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/08—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
    • E01C23/085—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools
    • E01C23/088—Rotary tools, e.g. milling drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
    • B28D7/02—Accessories specially adapted for use with machines or devices of the preceding groups for removing or laying dust, e.g. by spraying liquids; for cooling work
    • 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
    • E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
    • E01C2301/50—Methods or devices for preventing dust by spraying or sucking

Definitions

  • the invention relates to a road milling machine for milling roadways, according to the preamble of claim 1, and to a method for disposing of dusts and vapors generated during the milling process on a road milling machine according to the preamble of claim 8.
  • Such milling machines are self-propelled and are also referred to as road milling.
  • a Frontladerfräse according to the preamble of claim 1 is known from DE 102 23 819 A1 known.
  • the known road milling machines have a self-propelled chassis with a chassis consisting of several wheel drives or more chain drives.
  • the chassis carries a machine frame in which a milling drum is mounted transversely to the direction of travel.
  • the milling drum In order to achieve the most complete removal of the milled material, the milling drum is usually surrounded by a housing in which the pointing in the direction of travel wall is designed as a cover plate with a passage opening for the milled material.
  • the processed from the milling drum material is taken over by a first conveyor belt, which transmits the processed material at the front end of the milling machine on a discharge belt, which is for transport to a loading area of a truck in the inclination and laterally pivotable.
  • the provided at the rear end cyclone separator can excrete only the coarser particles, but not the respirable particulate matter, so that the arrangement of the air outlet at the rear end of the road milling machine is located too close to the control station. As a result, the dusts and vapors at the rear end of the milling machine are blown off near the control station. Furthermore, the fan transports the dust-laden air, so that a high wear leads to a short service life of the blower.
  • the suction device has an axial fan arranged in a suction channel, which is subject to heavy wear due to the high level of dust and sharp-edged particles, which ultimately results in reduced air performance and bearing damage.
  • the fan blades of the axial fan are severely worn and damaged due to the impact and deflection of the high velocity particles.
  • In the intake of larger particles and small stones and other parts of the fan are mechanically damaged, which often result in damage to the fan blades and imbalances that lead to further damage to bearing damage.
  • a repair is disadvantageous in that the fan is arranged in a hard to reach place and therefore a repair leads to a major outage.
  • the fan due to the transport of the dusts and the sharp-edged particles, the fan must be designed so that the clearance between the fan blades and the walls of the fan is greater, so that the air performance and efficiency of such a fan for dust- and particle-laden air is lower.
  • the present invention seeks to provide a milling machine of the type mentioned above, and a method for disposing of dusts and vapors, in which with little mechanical effort and with higher efficiency during the milling process and the transport process resulting dusts and Vapors, in particular the breathable dusts, can be sucked off and disposed of, while at the same time the service life of the suction device can be considerably extended.
  • the suction device consists of a suction fan, a separator for solids and a suction channel, which is connected to the rear in the material transport direction channel section, that the suction fan is arranged downstream of the separator and that the separator on the separated solids disposed of the transport device in a forward channel section in the material transport direction, or in a collecting device and blows the cleaned air into the open air.
  • the front channel section is separated from the rear channel section with separating means for largely blocking an air flow, without obstructing the transport of the milled material.
  • separating means for largely blocking an air flow, without obstructing the transport of the milled material.
  • the invention enables a simple construction, in which the structure on a road milling machine does not have to be fundamentally changed, so that retrofitting of existing road milling machines is also possible.
  • the suction fan of the suction device is arranged behind the separation device, the suction fan is operated on the clean air side, so that the suction fan has a longer life.
  • the invention not only allows a significantly increased Service life of the suction fan, but also a significant improvement in air quality in the environment of the control station.
  • the clean air is blown off directly into the open air.
  • the separated solids can be disposed of either on the transport device in the front channel section or in a collecting device.
  • Such a collector may e.g. consist of an air-permeable dust bag, which can be removed during service interruptions of the road milling machine to dispose of the separated solids.
  • the separating device consists of a filter device and that the filter cake forming in the filter device can be disposed of on the transport device in the front channel section or in the collecting device.
  • the use of a filter device has the advantage that it has a high efficiency with respect to the breathable dusts and that the separated solids can be compacted into a filter cake, which is easier disposable, without again in the disposal to a considerable extent dusts may arise.
  • the filter cake can be automatically removed by the filter device at predetermined time intervals or at a predetermined pressure loss. It is also possible, the filter device only during breaks, e.g. to clean at a tool change, if the filter capacity is designed accordingly. Another way to remove the filter cake from the filter device, there is at each change of driving in front of the road milling machine truck and the associated short-term work interruption.
  • the filter device is then subjected to cleaning, for example, with a vibration or a pulse-like counter-pressure.
  • the transport device has at least one conveyor belt with a conveyor belt, and that sealing means for the channel consist of hoods which seal against the conveyor belt and against the housing of the conveyor belt.
  • the hoods thus form together with the conveyor belt or together with the housing of the conveyor belt a closed channel, so that the milled material passes through the transport device circumferentially completely enclosed. In this way, no dusts or vapors can escape to the outside along the channel. Smaller gaps in the course of the channel are irrelevant, since the channel is under negative pressure, so that at any leaks no contaminated air can escape, but at most air is sucked.
  • a second front transport device can take over the milled material at the end of the first rear transport device at a transfer point.
  • the transfer point between the first and second transport means is circumferentially sealed with flexible sealing means which are attached to at least one of the transport means. It is formed by a continuous channel containing both transport devices.
  • the separating means may consist of a flexible flap which closes the rear channel section of the transport device against air entry against the material transport direction.
  • the negative pressure in the rear channel section thereby reinforces the seal by sucking the flap onto the conveyor belt.
  • FIG Fig. 1 A road milling machine 1 for working roadways in the embodiment of a front-end loader is shown in FIG Fig. 1 shown. It is understood that the invention is also applicable to other types of milling machines, which are provided with at least one transport device 14, 18.
  • the road milling machine 1 is used for milling of ground surfaces, in particular roadways made of asphalt, concrete o. The like.
  • the road milling machine 1 has a chassis with, for example, four track assemblies 4, which is the machine frame 2 carries. It is understood that the crawler tracks can be wholly or partially substituted by wheel drives.
  • a milling drum 8 is mounted, which extends transversely to the direction of travel. The setting of the cutting depth is preferably carried out with the help of the height adjustment of the chain drives 4.
  • the in Fig. 1 Road milling machine 1 shown is also referred to as a front loader road milling machine, since it conveys the milled material in the direction of travel forward on a transport vehicle 10.
  • a first conveying device 14 consisting of a conveyor belt with a conveyor belt 15 is arranged in a shaft 9 of the machine frame 2, which runs at an angle of inclination in the machine frame 2.
  • the first transport device 14 conveys the milled material 3 on the conveyor belt 15 to a second, preferably also a conveyor belt 19 having transport means 18.
  • the second transport means 18 is adjustable in height via an adjustable inclination angle and can additionally be laterally pivoted by ⁇ 30 °, for example also standing next to the lane of the road milling machine stationary transport vehicles 10 can be loaded.
  • the conveyor belts 15, 19 and the use of arranged in a channel augers is possible.
  • the milling drum 8 is usually surrounded by a roller box 58, wherein the pointing in the direction of travel wall is formed as a shield 52 with a passage opening 56 for the milled material.
  • the milling drum 8 is provided with helically arranged chisel tools, which are arranged so that the milled material 3 is transported to the passage opening 56 in the shield 52.
  • a wall 60 of the roller box 58 which terminates closely with the milled bottom surface, is provided, which removes the milled bottom surface so that no fragments of the milled material 3 remain on the milled ground surface.
  • the wall 60 is with its lower edge hydraulically pressed against the ground surface to achieve the best possible seal.
  • a belt shoe 50 designated as band protection and support means is mounted in a height adjustable height guidance.
  • the belt shoe 50 receives the rear end of the first conveyor 14.
  • the passage opening 56 of the roller box 58 forms a first transfer point 5, at which the milled material is transferred from the milling drum 8 to the first transport device 14.
  • the control station is located in the embodiment of Fig. 1 above the milling drum 8, but can also be arranged as usual in road milling machines in the rear or front region of the machine frame 2.
  • FIGS. 5 and 6 show in detail the first transport device 14th
  • the transport device 14 is mounted in a preferably centrally located shaft 9 of the machine frame 2 and can be easily disassembled from the belt shoe 50 for maintenance purposes and removed through the shaft 9 therethrough.
  • the transporting device 14 with the conveyor belt 15 has a hood 22 which, together with the upper run 15a of the conveyor belt 15, forms a channel section 16a of a channel 16 which extends from the roller box 58 to the end of the second transport device 18.
  • the hood 22 of the first conveyor 14 by means of hood supports 44 is attached to the frame of the first conveyor 14.
  • Elastic lips 46 may be attached to the hood brackets 44 on both sides of the conveyor belt and the upper run 15a of the conveyor belt 15 in the edge region over the entire length of the upper run 15a touch.
  • the second transport device 18 may be provided with a hood 26. In this way, the entire channel 16 dust and gas-tight against the environment to be sealed, even if the sealing of the front channel portion 16b is only really necessary if even a significant dust formation in the front channel section 16b is even detectable.
  • the hood 22 of the first transport device 14 at least one nozzle 23, 23 a, 23 b, to which at least one suction channel 24 can be connected.
  • the suction channel 24 is formed from two suction hoses 24a, 24b, which lead from the nozzles 23a, 23b to the inlet side of a filter housing a filter device 25, which is preferably placed in the region of the front channel portion 16b on the hood 26 of the front conveyor 18.
  • the filter device 25 preferably consists of several, eg ten filter cartridges 31, which are preferably connected in parallel to form a large filter surface.
  • the suction fan 28 is arranged on the output side on the clean air side and is thereby acted upon only with clean air.
  • An exhaust pipe 29 allows you to blow off the cleaned exhaust air directly into the open air. Alternatively, the clean air at the front end of the filter device 25 or at the front end of the front Transport device 18 are blown off.
  • the suction fan 28 enables a high air flow rate and thus generates a correspondingly high negative pressure in the rear channel section 16a and in the drum box 58 surrounding the milling drum 8. The dust and vapors produced during the milling process are therefore reliably and with high efficiency via the suction channel 24, 24a, 24b sucked off.
  • the flaps 36 are provided with slots.
  • a plurality of flaps 36 are arranged one behind the other to achieve an improved air seal between the channel sections 16a, 16b ( Fig. 5 ).
  • the separating means preferably consisting of flaps 36 can also be arranged at a different location within the channel 16, eg in the material transport direction behind the second transfer point 7 in the region of the second transport device 18.
  • the suction channels 24a, 24b of the suction device 20 on the hood 26 of the second transport device 18 in material transport device upstream of the separating means, preferably in the Connected near the release agent.
  • the rear channel section 16a thus ends at the separating means, which are arranged in material transport device downstream of the transfer point 7.
  • the conveyor belt 15 is how best Fig. 7 is visible, guided over support rollers 62,64, wherein the upper run 15a forms a substantially U-shaped groove by the support rollers 64 are inclined accordingly.
  • the lower support roller 62 supports the lower run 15b of the conveyor belt 15. As shown in FIGS FIGS. 3 and 4 it can be seen, are located on the surface of the conveyor belt 15 webs 17 which improve the entrainment of the milled material 3 on the conveyor belt 15.
  • the milled material 3 is transferred at the second transfer point 7 into a receiving hopper 35 of the second transport device 18, whereby the milled material 3 is conveyed via the conveyor belt 19 to the discharge end and disposed of on the transport vehicle 10.
  • the filter cake of the filter device 25 can be disposed of via a flap 37 in the filter housing 33 ( Fig. 5 ).
  • the filter cake can be filled into a collection device 39 consisting of a dust collection bag ( Fig. 6 ), which is attached to an opening of the filter housing 33.
  • a flap 37 may be provided in the bottom of the filter housing 33.
  • the transition point at the transfer point 7 is enclosed by sealing means consisting of flexible mats 30, so that the first transporting device 14 and the second transporting device 18 form a circumferentially sealed channel 16, which is continuous in the material transporting direction.
  • filter device 25 is selected by the operator time intervals, eg interruptions in operation, such as changing the vorrausfahrenden Truck 10 or tool change to manual command out, for example, by vibration or by applying a pressure pulse in the opposite direction cleaned.
  • the filter cake sitting on the filter cartridges 31 is removed.
  • the filter cake can also be automatically cleaned as a function of the pressure loss that forms with increasing operating time of the filter device 25, or after predetermined time intervals.
  • the filter cake removed by the filter cartridges 31 may slip due to the inclination of the lower bottom of the filter housing 33 to the rear end of the filter housing 33, where it can be disposed of, for example via a flap 37 and the receiving hopper 35 to the front conveyor 18. It is also possible to compress the filter cake additionally by a spray and to increase the cohesion of the deposited particles by the spray.
  • the filter cake is placed behind the separating means on the front conveyor 18.
  • suction hoses 24a, 24b of the suction channel 24, as in Fig. 2 can be seen from two opposite sides in the filter housing 33, wherein the filter cartridges 31 are charged from the outside with the dust and vapor-laden air.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Repair (AREA)
  • Crushing And Grinding (AREA)

Claims (9)

  1. Fraiseuse routière (1) pour fraiser des routes, comprenant
    - un bâti de machine (2),
    - un rouleau de fraisage (8) supporté au bâti de machine (2),
    - au moins un moyen de transport (14, 18) disposé au bâti de machine (2), recevant le matériau fraisé (3) du rouleau de fraisage (8), ainsi
    - qu'un moyen aspirateur (20) pour l'air contaminé par des poussoirs et des vapeurs,
    - le matériau fraisé (3) étant entouré sur ledit au moins un moyen de transport (14, 18) par un canal (16) présentant deux sections de canal (16a, 16b),
    - le moyen aspirateur (20) étant raccordé à une section de canal arrière (16a) du canal (16), vu en direction de transport du matériau, et l'air pollué en fraisant étant aspiré au niveau du rouleau de fraisage (8) et étant aspiré dans ladite section de canal arrière (16a) selon la direction de transport du matériau, et
    - la section du canal avant (16b) étant séparée de la section de canal arrière (16a) par des moyens de séparation afin de sensiblement bloquer un courant d'air sans que le transport du matériau (3) fraisé soit entravé,
    caractérisée en ce que
    le moyen aspirateur (20) est formé par un ventilateur d'aspiration (28), un moyen de ségrégation de solides et un canal d'aspiration (24) raccordé à la section de canal arrière (16a) du canal (16) sur le moyen de transport (14, 18),
    le ventilateur d'aspiration (28) est disposé à l'aval du moyen de ségrégation, et
    le moyen de ségrégation dépose les solides ségrégés sur le moyen de transport (18) dans la section du canal avant (16b), vu en direction de transport du matériau, par derrière les moyens de séparation, ou dans un moyen collecteur (39), et le ventilateur d'aspiration (28) laisse échapper l'air purifié dans l'environnement.
  2. Fraiseuse selon la revendication 1, caractérisée en ce que le moyen de ségrégation est formé par un moyen de filtre (25), et que le gâteau de filtre se formant dans le moyen de filtre (25) peut être déposé sur le moyen de transport (18) dans la section de canal avant (16b) ou dans le moyen de collection (39).
  3. Fraiseuse selon la revendication 2, caractérisée en ce que l'on peut appliquer une vibration ou une contre-pression pulsée audit moyen de filtre (25) afin de le nettoyer.
  4. Fraiseuse selon l'une des revendications 1 à 3, caractérisée en ce que l'au moins un moyen de transport (14, 18) est formé par une bande de transport comprenant une courroie de convoyeur (15, 19), et que ledit canal (16) est formé par des capots (22, 26) étanchéifiant par rapport à ladite courroie de convoyeur (15, 19) ou par rapport du boîtier dudit au moins un moyen de transport (14, 18).
  5. Fraiseuse selon l'une des revendications 1 bis 4, caractérisée en ce qu'un deuxième moyen de transport (18) reçoit le matériau fraisé (3) à l'extrémité du premier moyen de transport (14) à une position de transfert (7), et que ladite position de transfert (7) est étanchéifiée selon le pourtour par des moyens étanchéifiants flexibles (30) entre le premier et le deuxième moyen de transport (14, 18), qui sont raccordés audit moyen de transport (14, 18) de manière à ce qu'un canal continu soit formé au-dessus des deux moyens de transport (14, 18).
  6. Fraiseuse selon l'une des revendications 1 à 5, caractérisée en ce que les moyens de séparation entre la section de canal arrière (16a) et la section de canal avant(16b) dudit au moins un moyen de transport (14, 18) sont formées par au moins un abattant flexible (36) s'étendant sur toute la section transversale ouverte du canal de la section de canal (16a).
  7. Fraiseuse selon l'une des revendications 4 à 6, caractérisée en ce que des supports de capot (44) pour les capots (22, 26) sont fixés aux côtés d'une bande de transport, une lèvre élastique étanchéifiant les supports par rapport à la courroie de convoyeur (15, 16).
  8. Procédé d'évacuation de poussoirs et de vapeurs produits pendant le fraisage au niveau d'une fraiseuse routière pour le fraisage de routes, le matériau fraisé (3) par un rouleau de fraisage (8) étant évacué par au moins un moyen de transport (14, 18),
    par formant un canal (16) avec deux sections de canal (16a, 16b) entourant le matériau fraisé (3) sur le moyen de transport (14, 18), et
    par aspirant l'air pollué par poussoirs et vapeurs dans une section de canal arrière (16a) du canal (16) dans la direction de transport du matériau fraisé (3),
    par divisant les section de canal (16a, 16b) par des moyens de séparation perméables au matériau fraisé (3), mais empêchant un courant d'air entre les sections de canal (16a, 16b),
    caractérisé par
    l'alimentation de l'air aspiré dans ladite section de canal arrière (16a), chargé de poussoirs et de vapeurs, à un moyen de ségrégation,
    l'évacuation des solides ségrégés par le moyen de ségrégation dans un moyen collecteur (39) ou sur le moyen de transport (14, 18) dans une section de canal avant (16b) du canal (16) derrière les moyens de séparation, et
    le décharge en souffle de l'air purifié dans l'environnement par un ventilateur d'aspiration disposé en aval dudit moyen de ségrégation.
  9. Procédé selon la revendication 8, caractérisé en ce que les solides ségrégés du courant d'air sont compactés pour former un gâteau de filtre dans lequel l'on peut aussi intégrer les vapeurs aspirées.
EP05002009A 2004-02-16 2005-02-01 Fraiseuse et procédé pour travailler le sol Expired - Lifetime EP1564332B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004007716A DE102004007716B3 (de) 2004-02-16 2004-02-16 Fräsmaschine sowie Verfahren zum Bearbeiten von Bodenoberflächen
DE102004007716 2004-02-16

Publications (3)

Publication Number Publication Date
EP1564332A2 EP1564332A2 (fr) 2005-08-17
EP1564332A3 EP1564332A3 (fr) 2006-03-08
EP1564332B1 true EP1564332B1 (fr) 2009-10-21

Family

ID=34585416

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05002009A Expired - Lifetime EP1564332B1 (fr) 2004-02-16 2005-02-01 Fraiseuse et procédé pour travailler le sol

Country Status (4)

Country Link
US (1) US7219964B2 (fr)
EP (1) EP1564332B1 (fr)
AT (1) ATE446415T1 (fr)
DE (2) DE102004007716B3 (fr)

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CN102912716A (zh) * 2011-08-04 2013-02-06 宝马格有限公司 用于处理地面材料的铣刨辊以及具有这种铣刨辊的地面铣刨机

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DE102014216763B4 (de) 2014-08-22 2018-07-26 Wirtgen Gmbh Selbstfahrende Fräsmaschine, sowie Verfahren zum Abladen von Fräsgut
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US20170009410A1 (en) * 2016-09-22 2017-01-12 Caterpillar Paving Products Inc. Ventilation system for cold planer
DE102016222589B4 (de) 2016-11-16 2020-01-16 Wirtgen Gmbh Selbstfahrende Fräsmaschine, sowie Verfahren zum Steuern einer selbstfahrenden Fräsmaschine
DE102017220869A1 (de) 2017-11-22 2019-05-23 Wirtgen Gmbh Selbstfahrende Fräsmaschine, Verfahren zum automatischen Beladen eines Transportmittels mit Fräsgut, sowie Straßen- oder Bodenbearbeitungseinheit
CN108797291A (zh) * 2018-08-31 2018-11-13 王凌 一种路面铣刨机除尘、除铣刨废料装置
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DE102019132886A1 (de) 2019-12-03 2021-06-10 Wirtgen Gmbh Bodenbearbeitungsmaschine mit Staubabsaugung und rotierbaren Filterkartuschen
DE102019132892A1 (de) 2019-12-03 2021-06-10 Wirtgen Gmbh Bodenbearbeitungsmaschine mit gefilterter Staubabsaugung mit elastisch verformbarem Filtergehäuse
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EP1564332A3 (fr) 2006-03-08
US20050179309A1 (en) 2005-08-18
ATE446415T1 (de) 2009-11-15
EP1564332A2 (fr) 2005-08-17
US7219964B2 (en) 2007-05-22
DE102004007716B3 (de) 2005-06-16
DE502005008355D1 (de) 2009-12-03

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