EP1337713A1 - Compactor - Google Patents
CompactorInfo
- Publication number
- EP1337713A1 EP1337713A1 EP01990445A EP01990445A EP1337713A1 EP 1337713 A1 EP1337713 A1 EP 1337713A1 EP 01990445 A EP01990445 A EP 01990445A EP 01990445 A EP01990445 A EP 01990445A EP 1337713 A1 EP1337713 A1 EP 1337713A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pendulum
- drum
- vibration
- vibrator
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
- B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
- B06B1/161—Adjustable systems, i.e. where amplitude or direction of frequency of vibration can be varied
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18056—Rotary to or from reciprocating or oscillating
- Y10T74/18344—Unbalanced weights
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18544—Rotary to gyratory
- Y10T74/18552—Unbalanced weight
Definitions
- the invention relates to a compacting device with at least one vibrating drum according to the preamble of claim 1.
- a generic compression device is known from EP 0 530 546 A.
- the known compacting device has at least one movable drum, which is operatively connected to the unbalance exciter shafts of a vibration exciter arranged in parallel to the drum axis and rotating synchronously such that the roller optionally exerts a predominantly dynamic shear or pressure load on the ground.
- the vibration is generated by at least two excitation shafts with counter-rotating masses. This results in a directional oscillation whose direction of action can be pivoted from a horizontal to a vertical direction.
- the amplitude of the roller drum remains constant, so that only the direction of vibration is changed.
- the generation of vibrations by circular vibrators is also known.
- the unbalanced masses are preferably located on an axis in the middle of the drum and generate a rotating force.
- Two unbalanced masses rotating in the same direction used, which are mutually adjustable in their phase the amount of the resulting compression force can be changed by changing the phase position.
- Another parameter for adaptation to the operating conditions is the variation of the vibration frequency.
- a method for measuring mechanical data of a soil and for setting the roller parameters, which is based on the aforementioned mechanical solution for adapting the compacting force and frequency, is known from WO 98/17865.
- Orbital vibrators achieve higher compression values under comparable conditions than the directional vibration of the counter vibrators.
- the directional vibration of the counter vibrators creates compressive forces in the ground, each of which only acts in one direction and thus only permits compaction to a limited extent by shifting different layers of the compacting substrate. If this direction of action of the vibration is pivoted from a vertical to a horizontal direction, for example to reduce the vibration that can be transmitted to buildings, the shear stress that can be transmitted to the substrate becomes very low.
- phase shift is reduced from 180 ° to 0 °, so that the effect of a circular vibrator is created.
- a major disadvantage of this concept is that it is not possible to constructively adjust the amplitude without creating undefined vibration states.
- Another disadvantage is the high design effort.
- the invention has for its object to simplify a compression device of the type mentioned in terms of its mechanical structure and to enable the generation of an oscillatory movement with which the introduction of force into the material to be compressed is optimized in order to enable rapid compression.
- the vibration exciter consists of a pendulum vibrator for generating an elliptical vibration of the drum with a pendulum housing oscillating around the drum axis and with a single unbalance exciter shaft mounted in the pendulum housing at a radial distance from and parallel to this.
- the use of a pendulum vibrator combines the advantages of the simple design of a circular vibrator with the adjustment options of a directional counter vibrator, as well as the compaction advantages of an oscillating drum movement.
- the unbalanced mass rotating on the exciter shaft generates rotating forces. Since the excitation shaft is pivotally mounted in a pendulum housing about the drum axis, only small forces are transmitted outside the direction of the longitudinal axis of the pendulum.
- the Force components of the unbalanced mass which are at an angle to the longitudinal axis of the pendulum, generate a moment on the pendulum housing around the drum axis and thus cause the pendulum to deflect. Due to the high frequency of the unbalanced mass and the inertia of the pendulum housing, the angle of the pendulum movement can be kept small.
- the bandage Due to the pendulum vibrations of the pendulum housing, the bandage is fundamentally elliptical.
- the pendulum housing is preferably supported radially against the bandage on the inside of the bandage via roller bearings.
- the radial support can take place on the radially outer peripheral region of the pendulum housing or on corresponding radial housing gradations of the pendulum housing on the axial side surfaces.
- the radial roller bearings transmit the vibrations of the pendulum housing to the drum.
- the angular position of the longitudinal axis of the pendulum vibrator relative to a vertical plane through the drum axis can be adjusted with the aid of an adjusting device.
- the orientation of the elliptical vibration relative to a vertical plane through the drum axis can thus be adjusted by, for example, ⁇ 90 °.
- a damping element that allows and limits pendulum vibrations is arranged between the adjusting device for adjusting the angular position of the pendulum vibrator and the pendulum housing.
- the damping element serves as a coupling element between an adjusting lever of the adjusting device and the oscillating pendulum housing.
- the actuating lever specifies the angular position of the longitudinal axis of the pendulum vibrator, the damping element permitting the pendulum housing to oscillate to a certain extent about this angular position.
- the longitudinal axis of the pendulum housing lies in a plane defined by the drive shaft of the pendulum vibrator and the unbalance shaft.
- the elliptical waveform generated by the vibration drive is on the one hand about the angular position of the pendulum housing and on the other hand about the speed of the Imbalance exciter shaft variable.
- the direction of the elliptical vibration and its intensity can be set.
- the drive shaft of the pendulum vibrator is arranged coaxially to the drum axis, the drive shaft being mounted in the pendulum housing.
- the drive shaft for the pendulum vibrator is coupled to the unbalance exciter shaft via an intermediate gear.
- the intermediate gear can consist of a belt drive.
- the unbalance exciter shaft can be driven directly electrically or hydrostatically.
- the intermediate gear and the drive shaft of the pendulum vibrator can be omitted, so that the design effort is reduced.
- two bandages are arranged side by side in the axial direction, which have a common pendulum vibrator.
- the two bandages can be provided with independent bandage drives.
- Fig. 2 shows a cross section through the bandage with internal pendulum vibrator
- Fig. 3 is a schematic representation of the angular positions of the pendulum vibrator with the associated waveforms of the drum.
- 1 is a road roller 1 with a chassis 3, a wheel drive with two rear wheels 7 and a front drum 4.
- 2 shows a cross section through the bandage 4, the exemplary embodiment representing a divided bandage 4 with two bandage sections 4a, 4b.
- the bandage sections 4a, 4b can each be provided with their own bandage drive 9a, 9b, which enable a relative movement of the two bandage sections during steering.
- the connecting flange 13, to which the drum drive 9a, 9b is fastened, is elastically connected to the machine frame 3 via rubber elements 15.
- the drum drives 9a, 9b are fastened to the vehicle frame 3 at a connection flange 13 and drive the drum sections 4a, 4b via an inner flange 11a, 11b in each case.
- the bandage 4 receives in its interior a pendulum vibrator 10 which is driven by a drive shaft 22 which runs coaxially to the bandage axis 2 through the bandage drive 9a.
- the drive shaft 22 is connected to a vibration drive 6.
- the pendulum vibrator 10 consists essentially of a pendulum housing 8 with a single imbalance exciter shaft 12 mounted in the pendulum housing 8.
- the imbalance exciter shaft 12 is provided with imbalance masses 16 fixedly attached to the imbalance exciter shaft 12.
- the drive shaft 22 is connected to the unbalance exciter shaft 12 via a, e.g. connected from a belt drive 24 intermediate gear.
- the belt drive 24 can have a toothed belt 34 which rotates via gear wheels 36, 38 on the drive shaft 22 or the imbalance exciter shaft 12 in order to transmit the drive energy to the imbalance exciter shaft 12. Since no synchronous running of the masses is required, V-belts can also be used.
- the pendulum housing 8 is pivotable in the embodiment of FIG. 2 about a pivot axis which is coaxial with the drum axis 2.
- the pendulum housing 8 is supported radially via a roller bearing 30 on its outer circumference against the bandage sections 4a, 4b.
- the drive shaft 22 for the pendulum vibrator 10 is in turn supported in the pendulum housing 8 by means of a roller bearing 32.
- the vibration drive 6 can drive the unbalance exciter shaft 12 directly, wherein the vibration drive 6 can consist of an electric motor or a hydraulic motor.
- the drive shaft 22 and the intermediate gear consisting of a belt drive 24 between the drive shaft 22 and the unbalance exciter shaft 12 are omitted.
- An actuating device 5 which preferably consists of a piston-cylinder unit, is fastened on one side to the frame element 13 and actuates an actuating lever, which is not visible in FIG. 2 and is hidden by the shaft 21, with the aid of which the shaft 21 passed through the drum drive 9b can be rotated is.
- the shaft 21 is connected to an actuating lever 23, which is connected to the pendulum housing 8 at its radial end via at least one damping element 20.
- the adjusting lever 23 can also consist of a disk, on the outer circumference of which a plurality of damping elements 20 are coupled to the pendulum housing 8. With the aid of the adjusting device 5, the pendulum vibrator 10 can thus be adjusted relative to a vertical plane through the drum axis 2.
- the pendulum housing 8 can be adjusted continuously from its vertical rest position by ⁇ 90 ° with the aid of the adjusting device 5.
- At least one unbalance mass 16 is attached to an unbalance exciter shaft and generates centrifugal forces when it rotates, the magnitude of which depends on the size of the unbalance and the speed of the exciter shaft.
- the centrifugal forces act with the same strength in every direction.
- the imbalance exciter shaft 12 is mounted in a pendulum housing 8, which in turn is suspended in parallel to the imbalance exciter shaft 12 so as to oscillate about the drum axis 2. Due to this oscillating suspension of the pendulum housing 8 centrifugal forces can only in the direction of the axis unbalance excitation shaft - drum center fully transferred. Forces perpendicular to this plane cause the pendulum housing to deflect from its rest position (pendulum vibration).
- the mass of the pendulum vibrator 10 must be pivoted against its inertia about the drum axis 2. This creates reaction forces in the drum axis 2, which act orthogonally to the above-mentioned, directly transmitted centrifugal forces.
- the size of the forces acting transversely to the main vibration level depends on the position of the center of gravity of the pendulum housing and the distance of the unbalance exciter shaft 12 from the drum center or pendulum suspension.
- a more or less flat oscillation ellipse can be generated by suitable selection of the distances. This can be demonstrated mathematically and experimentally.
- the position of the oscillation ellipse is adjustable by means of the adjusting device 5, with which the oscillating pendulum housing 8 can be pivoted in its angular position.
- FIG. 3 shows, for example, three angular positions of the pendulum housing 8 marked with a, b and c with the associated elliptical drum vibrations.
- the position a shows the vertical position of the pendulum vibrator 10 with an elliptical drum vibration, the main axis of which runs vertically.
- position b of the pendulum housing 8 a drum vibration is generated, the The main axis runs at an angle of, for example, 45 ° to the vertical.
- the pendulum housing can also be pivoted through an angle of 90 °, as a result of which an elliptical band oscillation can be set in which the main axis lies horizontally.
- Each position between the angular positions a, b, c is adjustable.
- the angle of the pendulum housing vibration can be kept small.
- the pendulum housing 8 oscillates or swings relative to the angular position set with the aid of the adjusting device 5 as a central position by ⁇ 3 °.
- the optimal direction of vibration for the compression intensity can be obtained by measuring the shape of the vibration during compression.
- the change in the shape of the vibration with increasing compaction of the subsurface in comparison to the vibration with undensified subsoil represents a measured value for the compaction.
- This measured value serves as a reference variable for controlling the direction of vibration. For example, when the substrate is not compacted, the angular position a is selected, while the position c can be selected when the compaction process is complete.
- the road roller 1 can thus adapt to the subsurface conditions.
- the actuating device 5 can be operated automatically or by hand control. During the automatic operation, the shape of the vibration or the change in the elliptical vibration movement of the roller drum is monitored.
- the condition of the subsoil is determined by the vibration analysis.
- the results of the vibration analysis can be used to automatically adjust the direction of vibration via a machine control.
- a speed control for the Imbalance exciter shaft 12 are executed via the hydrostatic vibration drive 6.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Road Paving Machines (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10059245 | 2000-11-29 | ||
DE10059245 | 2000-11-29 | ||
PCT/EP2001/013806 WO2002044475A1 (en) | 2000-11-29 | 2001-11-27 | Compactor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1337713A1 true EP1337713A1 (en) | 2003-08-27 |
EP1337713B1 EP1337713B1 (en) | 2009-01-07 |
Family
ID=7665098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01990445A Expired - Lifetime EP1337713B1 (en) | 2000-11-29 | 2001-11-27 | Compactor |
Country Status (6)
Country | Link |
---|---|
US (1) | US6829986B2 (en) |
EP (1) | EP1337713B1 (en) |
JP (1) | JP4131433B2 (en) |
AT (1) | ATE420245T1 (en) |
DE (1) | DE50114647D1 (en) |
WO (1) | WO2002044475A1 (en) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7186056B2 (en) * | 2004-08-13 | 2007-03-06 | Caterpillar Paving Products Inc | Split drum and support arrangement for a compacting work machine |
US7669458B2 (en) * | 2004-11-10 | 2010-03-02 | The Board Of Regents Of The University Of Oklahoma | Method and apparatus for predicting density of asphalt |
EP1705293A1 (en) * | 2005-03-23 | 2006-09-27 | Ammann Aufbereitung AG | Method and device for compacting an area of ground |
DE102006041784A1 (en) * | 2006-09-06 | 2008-03-27 | Wacker Construction Equipment Ag | vibration exciter |
US8190338B2 (en) | 2008-09-02 | 2012-05-29 | The Board Of Regents Of The University Of Oklahoma | Method and apparatus for compaction of roadway materials |
US7857544B2 (en) * | 2008-10-03 | 2010-12-28 | Caterpillar Inc | Extension plate for a compactor |
US8376655B2 (en) * | 2008-10-03 | 2013-02-19 | Caterpillar Paving Products Inc. | Compactor with smooth hose routing |
US20110017482A1 (en) * | 2009-07-23 | 2011-01-27 | Keith Carl A | Roller Technology |
DE102009055950A1 (en) * | 2009-11-27 | 2011-06-01 | Hamm Ag | Compactor for compacting grounds, has movable drum rotatable around drum axle, where drum part of drum comprises vibration generator that is supported at distance from drum axle in drum |
US8393825B2 (en) | 2010-11-05 | 2013-03-12 | Caterpillar Inc. | Vibratory compactor |
US8439598B2 (en) | 2010-12-15 | 2013-05-14 | Caterpillar Inc. | Oscillatory compaction method |
US8328464B2 (en) * | 2011-02-04 | 2012-12-11 | Wacker Neuson Production Americas Llc | Vibratory roller with composite exciter drive gear |
RU2586340C2 (en) * | 2011-05-20 | 2016-06-10 | Вольво Констракшн Эквипмент Аб | Surface compactor and method for operation thereof |
US8965638B2 (en) | 2011-06-30 | 2015-02-24 | Caterpillar Paving Products, Inc. | Vibratory frequency selection system |
US9096230B2 (en) | 2011-11-01 | 2015-08-04 | Caterpillar Paving Products Inc. | Hystat drive system having coasting functionality |
US8608403B2 (en) | 2012-03-28 | 2013-12-17 | Caterpillar Paving Products Inc. | Magnetic vibratory compactor |
DE102012024104A1 (en) * | 2012-12-10 | 2014-06-12 | Bomag Gmbh | compaction |
EP2781269A1 (en) * | 2013-03-20 | 2014-09-24 | Eurodrill GmbH | Vibration generator, especially for a construction machine |
JP6214428B2 (en) * | 2014-02-26 | 2017-10-18 | 大成ロテック株式会社 | Compaction device and compaction ground construction method |
USD745063S1 (en) * | 2014-07-03 | 2015-12-08 | Bomag Gmbh | Tandem roller |
USD744543S1 (en) * | 2014-07-03 | 2015-12-01 | Bomag Gmbh | Tandem roller |
USD772781S1 (en) | 2014-09-11 | 2016-11-29 | Hamm Ag | Roof for a vehicle |
USD756422S1 (en) | 2014-09-11 | 2016-05-17 | Hamm Ag | Engine hood for a vehicle |
US20170016184A1 (en) | 2015-07-15 | 2017-01-19 | Caterpillar Paving Products Inc. | Vibratory Compactor Having Conventional and Oscillatory Vibrating Capability |
DE102015112847A1 (en) * | 2015-08-05 | 2017-02-09 | Hamm Ag | compactor |
US10036129B2 (en) | 2016-04-20 | 2018-07-31 | Caterpillar Paving Products Inc. | Vibratory compacting machine |
CN106627100A (en) * | 2016-11-17 | 2017-05-10 | 柳工无锡路面机械有限公司 | Rear driving wheel system of small-sized combined road roller |
DE102017000193A1 (en) * | 2017-01-11 | 2018-07-12 | Bomag Gmbh | Roller for soil compaction and method for generating a vibration image of a roller for soil compaction |
USD853451S1 (en) * | 2017-07-06 | 2019-07-09 | Bomag Gmbh | Rear part of a single drum roller |
USD849802S1 (en) | 2017-07-06 | 2019-05-28 | Bomag Gmbh | Engine hood of a single drum roller |
USD853450S1 (en) * | 2017-07-06 | 2019-07-09 | Bomag Gmbh | Single drum roller |
USD899468S1 (en) * | 2019-05-15 | 2020-10-20 | Caterpillar Paving Products Inc. | Vibratory roller |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE976405C (en) | 1951-12-23 | 1963-08-22 | Losenhausenwerk Duesseldorfer | Unbalance vibrator with oscillating mounted vibration generator |
US3486427A (en) | 1967-03-10 | 1969-12-30 | Losenhausen Maschinenbau Ag | Vibratory rollers |
DE1634450A1 (en) | 1967-03-10 | 1971-11-18 | Losenhausen Maschb Ag | Vibrating roller |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2337532A1 (en) * | 1973-07-24 | 1975-02-06 | Koehring Gmbh Bomag Division | VIBRATING ROLLER |
US3909147A (en) * | 1974-11-07 | 1975-09-30 | Raygo Inc | Variable amplitude vibration generator |
SE426719B (en) | 1980-12-03 | 1983-02-07 | Thurner Geodynamik Ab | PROCEDURE AND DEVICE FOR PACKING A MATERIAL LAYER |
US4749305A (en) * | 1987-08-31 | 1988-06-07 | Ingersoll-Rand Company | Eccentric-weight subassembly, and in combination with an earth compactor drum |
DE4129182A1 (en) * | 1991-09-03 | 1993-03-04 | Bomag Gmbh | COMPRESSOR |
DE19529115A1 (en) * | 1995-08-08 | 1997-03-06 | Wacker Werke Kg | Vibration mechanism, particularly for use in soil compaction |
WO1998017865A1 (en) | 1996-10-21 | 1998-04-30 | Ammann Verdichtung Ag | Method of measuring mechanical data of a soil, and of compacting the soil, and measuring or soil-compaction device |
DE29805361U1 (en) | 1998-03-25 | 1998-06-04 | Bomag GmbH, 56154 Boppard | Vibration compactor |
-
2001
- 2001-11-27 EP EP01990445A patent/EP1337713B1/en not_active Expired - Lifetime
- 2001-11-27 JP JP2002546817A patent/JP4131433B2/en not_active Expired - Fee Related
- 2001-11-27 DE DE50114647T patent/DE50114647D1/en not_active Expired - Lifetime
- 2001-11-27 US US10/432,902 patent/US6829986B2/en not_active Expired - Fee Related
- 2001-11-27 WO PCT/EP2001/013806 patent/WO2002044475A1/en active Application Filing
- 2001-11-27 AT AT01990445T patent/ATE420245T1/en not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE976405C (en) | 1951-12-23 | 1963-08-22 | Losenhausenwerk Duesseldorfer | Unbalance vibrator with oscillating mounted vibration generator |
US3486427A (en) | 1967-03-10 | 1969-12-30 | Losenhausen Maschinenbau Ag | Vibratory rollers |
DE1634450A1 (en) | 1967-03-10 | 1971-11-18 | Losenhausen Maschb Ag | Vibrating roller |
Also Published As
Publication number | Publication date |
---|---|
EP1337713B1 (en) | 2009-01-07 |
ATE420245T1 (en) | 2009-01-15 |
JP4131433B2 (en) | 2008-08-13 |
JP2004514811A (en) | 2004-05-20 |
US20040028472A1 (en) | 2004-02-12 |
WO2002044475A1 (en) | 2002-06-06 |
US6829986B2 (en) | 2004-12-14 |
DE50114647D1 (en) | 2009-02-26 |
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