EP0704575B1 - Verfahren und Vorrichtung zum dynamischen Verdichten von Boden - Google Patents
Verfahren und Vorrichtung zum dynamischen Verdichten von Boden Download PDFInfo
- Publication number
- EP0704575B1 EP0704575B1 EP95110476A EP95110476A EP0704575B1 EP 0704575 B1 EP0704575 B1 EP 0704575B1 EP 95110476 A EP95110476 A EP 95110476A EP 95110476 A EP95110476 A EP 95110476A EP 0704575 B1 EP0704575 B1 EP 0704575B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- exciting
- shafts
- phase position
- adjusted
- 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
Links
- 239000002689 soil Substances 0.000 title claims description 11
- 238000000034 method Methods 0.000 title claims description 9
- 230000001133 acceleration Effects 0.000 claims abstract description 9
- 230000010355 oscillation Effects 0.000 claims abstract 8
- 230000003534 oscillatory effect Effects 0.000 claims 5
- 238000007906 compression Methods 0.000 abstract description 11
- 230000006835 compression Effects 0.000 abstract description 10
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 230000005284 excitation Effects 0.000 description 29
- 238000005056 compaction Methods 0.000 description 9
- 230000009191 jumping Effects 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- JHJNPOSPVGRIAN-SFHVURJKSA-N n-[3-[(1s)-1-[[6-(3,4-dimethoxyphenyl)pyrazin-2-yl]amino]ethyl]phenyl]-5-methylpyridine-3-carboxamide Chemical compound C1=C(OC)C(OC)=CC=C1C1=CN=CC(N[C@@H](C)C=2C=C(NC(=O)C=3C=C(C)C=NC=3)C=CC=2)=N1 JHJNPOSPVGRIAN-SFHVURJKSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
- E01C19/28—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows
- E01C19/288—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows adapted for monitoring characteristics of the material being compacted, e.g. indicating resonant frequency, measuring degree of compaction, by measuring values, detectable on the roller; using detected values to control operation of the roller, e.g. automatic adjustment of vibration responsive to such measurements
-
- 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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
- E01C19/28—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows
- E01C19/286—Vibration or impact-imparting means; Arrangement, mounting or adjustment thereof; Construction or mounting of the rolling elements, transmission or drive thereto, e.g. to vibrator mounted inside the roll
Definitions
- the invention relates to a method and a device for dynamic compaction of soil with at least a movable roller that vibrates performs by an adjustable in its direction Vibrating force acts on the roller, so that either horizontal thrust and / or vertical Pressure forces are exerted on the ground.
- the present application is based on the task to further improve this compression system and in particular over-compaction of the soil with local Grain crushing and deformation of the road surface to exclude.
- This task is regarding the procedural features solved in that the vibratory movement of the roller or a part connected to it is detected and that in the event of a disturbance of the basic roller vibration vertical part of the vibration force up to the approximate Fixing the fault is reduced.
- the invention is based on the knowledge that with increasing compaction of the soil and accordingly increasing soil hardness the compaction roller to Jumping tends to not only cause the compaction roller the compression quality is also subject to high mechanical stress decreases. The driver can do this Jumping is usually inadequate physically or visually perceive and then cancel the compaction process, which is mostly too late.
- the present invention for jumping and the Overdensification responsible part of the vibration movement reduce in time and compression instead increased horizontal thrust switch, where jumping is impossible is.
- the invention can be used as an anti-jump lock, on the other hand, as an over-compression barrier be considered . It therefore also allows work with higher vibration amplitudes than before, because damage to the roller from hard floors are no longer possible.
- the disturbances caused by jumping the basic vibration of the roll are available to the expert various possibilities. It can be the amplitude the vibration movement or a derivative thereof, in particular the acceleration. So takes, for example, the vertical portion of the acceleration if the roller loses contact with the ground.
- the period of the Vibration movement can be detected because here when jumping almost doubling occurs.
- Compaction process is done by a compactor with at least two parallel or aligned to the roller axis arranged, rotating in opposite directions synchronously Excitation waves, their position and / or phase position is so variable that its resulting Centrifugal force optionally horizontal thrust and / or exerts vertical pressure on the ground.
- the invention Process is then implemented in such a way that the roller or a part connected to it with a motion sensor to record the vibration movement is in operative connection and that the motion sensor is connected to a control loop that the position in the event of a disturbance of the basic roller vibration and / or phase position of the excitation waves in the sense adjusted to reduce the vertical pressure forces.
- the excitation waves are arranged approximately horizontally next to each other are and the adjustment between horizontal and vertical centrifugal forces by changing the phase position of the excitation waves is effected like this in itself is known.
- the excitation shafts are usually above gear wheels in operative connection with each other so that for adjustment the phase position of an excitation wave is fixable Rotary bearing between it and the one assigned to it Gear can be used.
- This pivot bearing suitably consists of one connected to the gear Adjustable helix, axially screwable is an adjustment axis that is axially displaceable, however is rotatably connected to the excitation shaft.
- the phase position should be over 150 °, especially to almost Can be adjusted 360 °.
- excitation waves to store in a rack that is one to them parallel axis swiveling and in the desired Swivel position can be determined.
- FIG. 2 schematically shows the two excitation waves 5 and 6, each arranged inside the roller 1 and 3 are.
- both excitation waves lie horizontally next to each other and they keep this position regardless of the roll rotation and regardless of whether vertical pressure forces, horizontal shear forces or a combination thereof should be generated. They turn in opposite directions, can but relative to the phase position of their unbalances be twisted towards each other.
- the roller 1 is in a manner known per se at one Front side on ball bearings 7 and rubber elements 8 a support 9, on the other side via rubber elements 10 and the drive motor 11 suspended from a support 12.
- the supports 9 and 12 each run upwards to the frame, i.e. to the structure 2a.
- excitation shafts are 5 and 6 with the adjustment mechanism 18 in a housing 19 stored, which in turn can be rotated in the drum 1 stored and over the rubber elements 8 with the support 9th connected is.
- the control loop for the jump limitation is in FIG. 7 shown. It consists of an accelerometer 20, for example the vertical acceleration the roller 1 detects, where it is expedient a non-rotating part of the roller or roller suspension assigned.
- the measured actual values are fed to an arithmetic unit 21 which determines the periodicity, in the present case, the duration of the vertical vibration component of the roller determined and a predetermined setpoint of reverse polarity overlaid. If the specified setpoint is exceeded, an actuator 22 receives a signal and actuates in turn, the adjusting mechanism via an actuating cylinder 23 18, such that the phase difference between exciter shafts 5 and 6 is adjusted that the vertical pressure force in favor of the horizontal Thrust decreases.
- FIG. 8 shows the change in the vibration behavior, if the roller increases due to increasing ground rigidity jump starts.
- the vertical acceleration component over time or plotted over the angle of rotation of the excitation waves in the right picture the vertical and horizontal Acceleration components in polar coordinates.
- the curve shape shown an almost exact sine curve or an arc in polar coordinates under normal compression conditions.
- With increasing ground rigidity leave both curves their ideal shape and finally the in Figure 8b configurations shown.
- the upper limit value for the vertical acceleration component is about 40 m / s 2 to be entered in the control loop, so that the behavior shown in FIG. 8 b can never occur.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Soil Working Implements (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Crushing And Grinding (AREA)
Description
- Figur 1
- eine Seitenansicht des Verdichtungsgerätes in seiner Gesamtheit;
- Figur 2
- eine schematische Darstellung zweier Erregerwellen zur Erzeugung vertikaler Druckkräfte;
- Figur 3
- eine Darstellung entsprechend Figur 2 bei veränderter Phasenlage zur Erzeugung horizontaler Schubkräfte;
- Figur 4
- eine ähnliche schematische Darstellung für kombinierte Verdichtung bei Vorwärtsfahrt;
- Figur 5
- eine entsprechende Darstellung bei der Rückwärtsfahrt
- Figur 6
- einen Axialschnitt durch eine Walze
- Figur 7
- den Regelkreis für die Sprungbegrenzung und
- Figur 8
- die Änderung der Walzenschwingung beim Springen.
Claims (11)
- Verfahren zum dynamischen Verdichten von Boden mit mindestens einer verfahrbaren Walze (1, 3) die Schwingungsbewegungen durchführt, indem eine in ihrer Richtung verstellbare Schwingungskraft auf die Walze einwirkt, so daß wahlweise horizontale Schubkräfte und/oder vertikale Druckkräfte auf den Boden ausgeübt werden,
dadurch gekennzeichnet,
daß die Schwingungsbewegung der Walze (1, 3) oder eines mit ihr verbundenen Teiles erfaßt wird und daß bei einer Störung der Walzengrundschwingung der vertikale Anteil der Schwingungskraft bis zum Ausregeln der Störung verringert wird. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
daß die Amplitude, die Beschleunigung oder die Periodendauer der Schwingungsbewegung der Walze erfäßt wird. - Gerät zum dynamischen Verdichten von Boden mit mindestens einer verfahrbaren Walze (1, 3) die zur Erzeugung einer Schwingungsbewegung wenigstens zwei parallel oder fluchtend zur Walzenachse angeordnete, gegensinnig synchron rotierende Erregerwellen (5, 6) aufweist, deren Position und/oder Phasenlage derart verstellbar ist, daß ihre resultierende Fliehkraft wahlweise horizontale Schubkräfte und/oder vertikale Druckkräfte auf den Boden ausübt, insbesondere zur Durchführung des Verfahrens nach den Ansprüchen 1 oder 2,
dadurch gekennzeichnet,
daß die Walze (1, 3) oder ein mit ihr verbundenes Teil mit einem Bewegungsfühler zur Erfassung der Schwingungsbewegung in Wirkverbindung steht und daß der Bewegungsfühler an einen Regelkreis angeschlossen ist, der bei einer Störung der Walzengrundschwingung die Position und/oder Phasenlage der Erregerwellen (5, 6) im Sinne einer Verringerung der vertikalen Druckkräfte verstellt. - Gerät nach Anspruch 3,
dadurch gekennzeichnet,
daß die Erregerwellen (5, 6) etwa horizontal nebeneinander angeordnet und in ihrer Phasenlage relativ zueinander verstellbar sind. - Gerät nach Anspruch 4, wobei die Erregerwellen über Zahnräder in Wirkverbindung stehen,
dadurch gekennzeichnet,
daß zumindest eine der Erregerwellen (6) zur Verstellung ihrer Phasenlage über eine fixierbare Drehlagerung (16, 17) mit ihrem Zahnrad (15) verbunden ist. - Gerät nach Anspruch 5,
dadurch gekennzeichnet,
daß die Drehlagerung aus einer mit dem Zahnrad (15) verbundenen Verstellwendel (16) besteht, in der axial verschraubbar eine Verstellachse (17) steckt, die axial verschiebbar, aber drehfest mit der Erregerwelle (6) verbunden ist. - Gerät nach einem der Ansprüche 3 bis 6,
dadurch gekennzeichnet,
daß die Phasenlage um über 150°, insbesondere bis etwa 360° verstellbar ist. - Gerät nach Anspruch 3,
dadurch gekennzeichnet,
daß die Erregerwellen in einem Gestell gelagert sind, das um eine zu den Erregerwellen parallele Achse verschwenkbar ist. - Gerät nach Anspruch 8,
dadurch gekennzeichnet,
daß das Gestell ausgehend von einer Bezugsposition mit vertikal übereinander angeordneten Erregerwellen beidseitig, insbesondere bis etwa 90°, verstellbar ist. - Gerät nach einem der Ansprüche 3 bis 9,
dadurch gekennzeichnet,
daß die Einstellung der Phasenlage oder der Position der Erregerwellen (5, 6) in Abhängigkeit von der Fahrtrichtung der Walze erfolgt. - Gerät nach einem der Ansprüche 3 bis 10,
dadurch gekennzeichnet,
daß der Bewegungsfühler einem nicht drehbaren Teil der Walze (1, 3) oder ihrer Lagerung zugeordnet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4434779 | 1994-09-29 | ||
DE4434779A DE4434779A1 (de) | 1994-09-29 | 1994-09-29 | Verfahren und Vorrichtung zum dynamischen Verdichten von Boden |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0704575A2 EP0704575A2 (de) | 1996-04-03 |
EP0704575A3 EP0704575A3 (de) | 1996-08-21 |
EP0704575B1 true EP0704575B1 (de) | 1998-07-22 |
Family
ID=6529490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95110476A Expired - Lifetime EP0704575B1 (de) | 1994-09-29 | 1995-07-05 | Verfahren und Vorrichtung zum dynamischen Verdichten von Boden |
Country Status (8)
Country | Link |
---|---|
US (1) | US5797699A (de) |
EP (1) | EP0704575B1 (de) |
JP (1) | JP3193988B2 (de) |
AT (1) | ATE168731T1 (de) |
CA (1) | CA2157428C (de) |
DE (2) | DE4434779A1 (de) |
DK (1) | DK0704575T3 (de) |
ES (1) | ES2122404T3 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013020690A1 (de) | 2013-12-03 | 2015-06-03 | Bomag Gmbh | Schwingungserreger für einen Vibrationsverdichter sowie Baumaschine mit einem solchen Schwingungserreger |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19529115A1 (de) * | 1995-08-08 | 1997-03-06 | Wacker Werke Kg | Vibrationsmechanismus, insbesondere zur Verwendung zur Verdichtung von Böden |
FR2748500B1 (fr) * | 1996-05-09 | 1998-08-07 | Vaillant Christian | Dispositif autorisant le controle, et la variation d'amplitude des vibrations appliquees aux rouleaux compacteurs tournants |
US6132133A (en) * | 1996-06-12 | 2000-10-17 | Komatsu Ltd. | Crawler type vibratory compacting machine |
JPH10176305A (ja) * | 1996-12-17 | 1998-06-30 | Hitachi Constr Mach Co Ltd | タイヤローラ |
SE513571C2 (sv) * | 1999-03-18 | 2000-10-02 | Ulf Bertil Andersson | Anordning för alstring av mekaniska vibrationer |
US6558072B2 (en) | 2001-05-15 | 2003-05-06 | Caterpillar Paving Products Inc. | Speed control system for a work machine |
US6750621B2 (en) * | 2001-09-10 | 2004-06-15 | Sauer-Danfoss Inc. | Method and system for non-contact sensing of motion of a roller drum |
US6637280B2 (en) | 2001-10-31 | 2003-10-28 | Caterpillar Paving Products Inc | Variable vibratory mechanism |
US7089823B2 (en) | 2002-05-29 | 2006-08-15 | Caterpillar Paving Products Inc. | Vibratory mechanism controller |
CN100393942C (zh) * | 2003-10-11 | 2008-06-11 | 陈启方 | 一种智能振动压路机的激振器 |
CN100393941C (zh) * | 2003-10-15 | 2008-06-11 | 陈启方 | 一种垂直振动压路机的激振器 |
EP1568420B1 (de) * | 2004-02-29 | 2018-08-15 | BOMAG GmbH | Steuerung und Steuerungsverfahren für eine Vibrationsmaschine |
CZ299778B6 (cs) * | 2007-07-04 | 2008-11-19 | Ammann Czech Republic A. S. | Tandemový vibracní válec |
DE102009055950A1 (de) * | 2009-11-27 | 2011-06-01 | Hamm Ag | Verdichtungsgerät, sowie Verfahren zum Verdichten von Böden |
US20110158745A1 (en) * | 2009-12-31 | 2011-06-30 | Caterpillar Paving Products Inc. | Vibratory system for a compactor |
DE102011088567A1 (de) * | 2011-12-14 | 2013-06-20 | Hamm Ag | Vorrichtung zur Erfassung der Bewegung einer Verdichterwalze eines Bodenverdichters |
US8608403B2 (en) | 2012-03-28 | 2013-12-17 | Caterpillar Paving Products Inc. | Magnetic vibratory compactor |
DE102012024104A1 (de) * | 2012-12-10 | 2014-06-12 | Bomag Gmbh | Verdichtungsmaschine |
CN103498464B (zh) * | 2013-10-19 | 2015-05-06 | 浦江县科创进出口有限公司 | 一种滚压系统 |
JP6214428B2 (ja) * | 2014-02-26 | 2017-10-18 | 大成ロテック株式会社 | 締固め装置及び締固め地盤の施工方法 |
DE102014205503A1 (de) * | 2014-03-25 | 2015-10-01 | Hamm Ag | Verfahren zur Korrektur eines Messwerteverlaufs durch das Eliminieren periodisch auftretender Messartefakte, insbesondere bei einem Bodenverdichter |
US9534995B2 (en) * | 2014-06-11 | 2017-01-03 | Caterpillar Paving Products Inc. | System and method for determining a modulus of resilience |
CN104749054B (zh) * | 2015-03-13 | 2017-05-03 | 同济大学 | 三维可操控强夯模拟离心机试验机械手装置 |
US9587361B2 (en) * | 2015-04-08 | 2017-03-07 | Caterpillar Paving Products Inc. | Temperature dependent auto adaptive compaction |
DE102015120874A1 (de) | 2015-12-02 | 2017-06-08 | Hamm Ag | Verfahren zur Ermittlung des Verdichtungszustandes eines Untergrunds |
DE102016109888A1 (de) | 2016-05-30 | 2017-11-30 | Hamm Ag | Bodenverdichter und Verfahren zum Betreiben eines Bodenverdichters |
DE102017122370A1 (de) * | 2017-09-27 | 2019-03-28 | Hamm Ag | Oszillationsmodul |
SE543161C2 (en) * | 2018-09-28 | 2020-10-13 | Dynapac Compaction Equipment Ab | Method of controlling operation of a vibratory roller |
CN109632217B (zh) * | 2018-10-25 | 2020-10-13 | 重庆交通大学 | 路面结构承载力连续检测方法 |
AT523034A3 (de) * | 2019-09-18 | 2024-02-15 | Plasser & Theurer Export Von Bahnbaumaschinen Gmbh | Maschine und Verfahren zum Stabilisieren eines Gleises |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
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DE2057279C3 (de) * | 1970-11-21 | 1979-06-07 | Losenhausen Maschinenbau Ag, 4000 Duesseldorf | Bodenverdichtungsgerät |
US3741820A (en) * | 1970-12-07 | 1973-06-26 | A Hebel | Method for stress relieving metal |
DE2554013C3 (de) * | 1975-12-01 | 1984-10-25 | Koehring Gmbh - Bomag Division, 5407 Boppard | Verfahren zur dynamischen Bodenverdichtung |
US4103554A (en) * | 1976-03-12 | 1978-08-01 | Thurner Heinz F | Method and a device for ascertaining the degree of compaction of a bed of material with a vibratory compacting device |
FR2390546A1 (fr) * | 1977-05-09 | 1978-12-08 | Albaret Sa | Procede et dispositif pour le reglage en frequence des vibrations appliquees a un sol pour un engin de compactage, et engin de compactage equipe d'un tel dispositif |
SE426719B (sv) * | 1980-12-03 | 1983-02-07 | Thurner Geodynamik Ab | Forfarande och anordning for packning av ett materialskikt |
AT376728B (de) * | 1982-02-17 | 1984-12-27 | Voest Alpine Ag | Unwuchtanordnung zur erzeugung von vibrationen |
SE432792B (sv) * | 1982-04-01 | 1984-04-16 | Dynapac Maskin Ab | Forfarande och anordning for att astadkomma optimal packningsgrad vid packning av olika material sasom asfalt, jord etc medelst en vibrerande velt |
DE3421824C2 (de) * | 1984-06-13 | 1986-07-17 | CASE VIBROMAX GmbH & Co KG, 4000 Düsseldorf | Vorrichtung zur Kontrolle der Verdichtung bei Vibrationsverdichtungsgeräten |
DE3806897A1 (de) * | 1988-03-03 | 1989-09-14 | Wacker Werke Kg | Schwingungserreger |
DE4116632A1 (de) * | 1991-05-22 | 1992-11-26 | Matthias Reck | Vorrichtung zur drehrichtungs- und synchronisationsfehlererkennung |
DE4129182A1 (de) * | 1991-09-03 | 1993-03-04 | Bomag Gmbh | Verdichtungsgeraet |
SE501040C2 (sv) * | 1993-03-08 | 1994-10-24 | Thurner Geodynamik Ab | Förfarande och anordning för styrning av en vals svängningsrörelse vid packning av ett underlag såsom jord, vägbankar, asfalt, etc |
-
1994
- 1994-09-29 DE DE4434779A patent/DE4434779A1/de not_active Withdrawn
-
1995
- 1995-07-05 EP EP95110476A patent/EP0704575B1/de not_active Expired - Lifetime
- 1995-07-05 DK DK95110476T patent/DK0704575T3/da active
- 1995-07-05 DE DE59502876T patent/DE59502876D1/de not_active Expired - Lifetime
- 1995-07-05 AT AT95110476T patent/ATE168731T1/de active
- 1995-07-05 ES ES95110476T patent/ES2122404T3/es not_active Expired - Lifetime
- 1995-09-01 CA CA002157428A patent/CA2157428C/en not_active Expired - Fee Related
- 1995-09-28 JP JP24999995A patent/JP3193988B2/ja not_active Expired - Fee Related
-
1997
- 1997-04-29 US US08/841,026 patent/US5797699A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013020690A1 (de) | 2013-12-03 | 2015-06-03 | Bomag Gmbh | Schwingungserreger für einen Vibrationsverdichter sowie Baumaschine mit einem solchen Schwingungserreger |
EP2881516A1 (de) | 2013-12-03 | 2015-06-10 | BOMAG GmbH & Co. OHG | Bodenverdichtungsmaschine |
US9334613B2 (en) | 2013-12-03 | 2016-05-10 | Bomag Gmbh | Vibration exciter for a vibration compactor and construction machine having such a vibration exciter |
EP2881516B1 (de) | 2013-12-03 | 2016-08-31 | BOMAG GmbH & Co. OHG | Bodenverdichtungsmaschine |
Also Published As
Publication number | Publication date |
---|---|
EP0704575A2 (de) | 1996-04-03 |
DE4434779A1 (de) | 1996-04-04 |
ES2122404T3 (es) | 1998-12-16 |
CA2157428A1 (en) | 1996-03-30 |
CA2157428C (en) | 2004-01-13 |
EP0704575A3 (de) | 1996-08-21 |
DK0704575T3 (da) | 1998-11-09 |
DE59502876D1 (de) | 1998-08-27 |
US5797699A (en) | 1998-08-25 |
JPH08105011A (ja) | 1996-04-23 |
ATE168731T1 (de) | 1998-08-15 |
JP3193988B2 (ja) | 2001-07-30 |
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