EP2690223A3 - Rapid action coupling for a works machine - Google Patents
Rapid action coupling for a works machine Download PDFInfo
- Publication number
- EP2690223A3 EP2690223A3 EP13003552.0A EP13003552A EP2690223A3 EP 2690223 A3 EP2690223 A3 EP 2690223A3 EP 13003552 A EP13003552 A EP 13003552A EP 2690223 A3 EP2690223 A3 EP 2690223A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- locking
- ankuppelaufnahme
- receptacle
- locking member
- 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
- 230000008878 coupling Effects 0.000 title abstract 2
- 238000010168 coupling process Methods 0.000 title abstract 2
- 238000005859 coupling reaction Methods 0.000 title abstract 2
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 title 1
- 210000000078 claw Anatomy 0.000 abstract 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/3604—Devices to connect tools to arms, booms or the like
- E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
- E02F3/3663—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat hydraulically-operated
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/3604—Devices to connect tools to arms, booms or the like
- E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
- E02F3/3618—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with two separating hooks
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/3604—Devices to connect tools to arms, booms or the like
- E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
- E02F3/3622—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with a hook and a locking element acting on a pin
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/3604—Devices to connect tools to arms, booms or the like
- E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
- E02F3/3627—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with a hook and a longitudinal locking element
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/3604—Devices to connect tools to arms, booms or the like
- E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
- E02F3/3645—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with auto-engagement means for automatic snap-on of the tool coupler part
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/3604—Devices to connect tools to arms, booms or the like
- E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
- E02F3/365—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with redundant latching means, e.g. for safety purposes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2221—Control of flow rate; Load sensing arrangements
- E02F9/2225—Control of flow rate; Load sensing arrangements using pressure-compensating valves
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/226—Safety arrangements, e.g. hydraulic driven fans, preventing cavitation, leakage, overheating
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2278—Hydraulic circuits
- E02F9/2296—Systems with a variable displacement pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/30505—Non-return valves, i.e. check valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/305—Directional control characterised by the type of valves
- F15B2211/3056—Assemblies of multiple valves
- F15B2211/3059—Assemblies of multiple valves having multiple valves for multiple output members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/30—Directional control
- F15B2211/365—Directional control combined with flow control and pressure control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50554—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure downstream of the pressure control means, e.g. pressure reducing valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
- F15B2211/5153—Pressure control characterised by the connections of the pressure control means in the circuit being connected to an output member and a directional control valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/52—Pressure control characterised by the type of actuation
- F15B2211/528—Pressure control characterised by the type of actuation actuated by fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
-
- 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
- Y10T403/00—Joints and connections
- Y10T403/22—Joints and connections with fluid pressure responsive component
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Shovels (AREA)
Abstract
Die vorliegende Erfindung betrifft einen Schnellkuppler zum Ankuppeln eines Werkzeugs wie beispielsweise Baggerlöffel, Schalengreifer oder Abbruchzangen an einen Werkzeugführer wie Baggerstiel oder dergleichen, mit einer Ankuppelaufnahme zum Aufnehmen eines ersten Verriegelungsteils und einer Verriegelungsaufnahme zum Aufnehmen eines zweiten Verriegelungsteils, wobei die Ankuppelaufnahme ein vorzugsweise selbstverriegelndes Sicherungselement zum Fangen und/oder Sichern des ersten Verriegelungsteils in der Ankuppelaufnahme zugeordnet ist und der Verriegelungsaufnahme ein druckmittelbetätigbares Verriegelungselement zum Verriegeln des zweiten Verriegelungsteils in der Verriegelungsaufnahme zugeordnet ist. Erfindungsgemäß ist das Sicherungselement der Ankuppelaufnahme ebenfalls von dem Druckkreis, der an sich zur Betätigung des Verriegelungselements der Verriegelungsaufnahme vorgesehen ist, betätigbar, wobei das genannte Sicherungselement über ein Druckschaltventil, das bei Erreichen/Überschreiten eines vorbestimmten ersten Drucks öffnet, mit dem Entriegelungs-Druckanschluss des Druckkreises verbunden ist und die Ventileinrichtung des Druckkreises eine Drucksteuereinrichtung zum Steuern der am Entriegelungs-Druckanschluss anliegenden Drucks wahlweise auf einen zweiten Druck größer als der genannte erste Druck und einen dritten Druck kleiner als der genannte erste Druck aufweist. The present invention relates to a quick coupler for coupling a tool such as buckets, claw grippers or demolition tongs to a tool guide such as excavator handle or the like, with a Ankuppelaufnahme for receiving a first locking member and a locking receptacle for receiving a second locking member, wherein the Ankuppelaufnahme a preferably self-locking securing element for Catching and / or securing the first locking member is assigned in the Ankuppelaufnahme and the locking receptacle is associated with a pressure-medium-actuated locking element for locking the second locking member in the locking receptacle. According to the invention the securing element of the Ankuppelaufnahme is also actuated by the pressure circuit which is provided for actuating the locking element of the locking receptacle, wherein said securing element via a pressure switching valve, which opens upon reaching / exceeding a predetermined first pressure, with the unlocking pressure port of Compression circuit is connected and the valve means of the pressure circuit comprises a pressure control means for controlling the voltage applied to the Entriegelungs-pressure port optionally to a second pressure greater than said first pressure and a third pressure less than said first pressure.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202012007124 | 2012-07-24 | ||
DE202012009838U DE202012009838U1 (en) | 2012-07-24 | 2012-10-15 | Quick coupler |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2690223A2 EP2690223A2 (en) | 2014-01-29 |
EP2690223A3 true EP2690223A3 (en) | 2017-06-21 |
EP2690223B1 EP2690223B1 (en) | 2019-01-16 |
Family
ID=49668266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13003552.0A Not-in-force EP2690223B1 (en) | 2012-07-24 | 2013-07-15 | Rapid action coupling for a works machine |
Country Status (3)
Country | Link |
---|---|
US (1) | US9382686B2 (en) |
EP (1) | EP2690223B1 (en) |
DE (1) | DE202012009838U1 (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202013005679U1 (en) * | 2013-06-24 | 2014-09-25 | Kinshofer Gmbh | Quick coupler |
DE202014001328U1 (en) | 2014-02-13 | 2015-05-15 | Kinshofer Gmbh | Quick coupler |
JP6176666B2 (en) * | 2014-04-08 | 2017-08-09 | キャタピラー エス エー アール エル | Control device for quick coupler in work machine |
KR102241176B1 (en) * | 2014-04-10 | 2021-04-16 | 두산인프라코어 주식회사 | Method of controlling a quick coupler of an excavator and apparatus for performing the same |
SE539425C2 (en) | 2014-09-03 | 2017-09-19 | Ytf Sweden Ab | Quick coupler for attaching a hydraulically operated tool / implement to an excavator |
US9903095B2 (en) * | 2015-01-30 | 2018-02-27 | Caterpillar Inc. | Tool coupler |
DE102015015809A1 (en) * | 2015-12-07 | 2017-06-08 | Liebherr-Hydraulikbagger Gmbh | Valve unit for quick coupler and quick-change system |
DE102015016846A1 (en) | 2015-12-23 | 2017-06-29 | Hydac Fluidtechnik Gmbh | Valve, in particular 4/2 directional spool valve |
CN110191991B (en) * | 2017-01-17 | 2021-09-21 | 斗山英维高株式会社 | Quick clamping control device and control method for engineering equipment |
EP3546655B1 (en) * | 2017-02-28 | 2022-07-13 | Komatsu Ltd. | Quick coupler circuit and quick coupler attachment/detachment method |
JP6930895B2 (en) * | 2017-10-30 | 2021-09-01 | ニッタ株式会社 | Automatic tool changer coupler and automatic tool changer |
DE102018128479A1 (en) | 2018-11-14 | 2020-05-14 | Oilquick Deutschland Gmbh | Quick hitch and quick hitch system with such a quick hitch |
DE202019101747U1 (en) | 2019-03-27 | 2020-06-30 | Kinshofer Gmbh | Quick coupler for construction machine tools |
DE202020100794U1 (en) * | 2020-02-14 | 2021-05-17 | Kinshofer Gmbh | Hydraulic attachment and construction machine with such an attachment |
EP3879034B1 (en) | 2020-03-12 | 2022-02-16 | BAUER Maschinen GmbH | Carriage assembly for construction machine and method for same |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4850790A (en) * | 1988-06-27 | 1989-07-25 | J. I. Case Company | Hydraulically actuated coupler for industrial, agricultural, or earth-moving vehicle |
EP0671512A2 (en) * | 1994-03-12 | 1995-09-13 | O&K ORENSTEIN & KOPPEL AG | Hydraulic locking device for quick couplings in construction machines |
GB2330568A (en) * | 1997-10-22 | 1999-04-28 | Caterpillar Inc | Quick coupling device with over centre spring |
US20040244575A1 (en) * | 2003-01-31 | 2004-12-09 | Fatemi Ray S. | Electrical and hydraulic control system for attachment coupling system |
EP2161378A1 (en) * | 2008-09-08 | 2010-03-10 | HILL, Ian | Coupler with gravity operated safety device |
GB2474573A (en) * | 2009-10-16 | 2011-04-20 | Hill Engineering Ltd | Control apparatus for a hydraulic coupler |
JP2011099239A (en) * | 2009-11-05 | 2011-05-19 | Takeuchi Seisakusho:Kk | Working machine |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE9701887D0 (en) * | 1997-05-21 | 1997-05-21 | Accima Ab | Device for detachable connection of a working tool and an excavator's control arm |
EP1637659A3 (en) * | 2001-12-06 | 2008-08-06 | Geith Patents Limited | A coupler for coupling an accessory to a dipper arm and a control system for such a coupler |
US7367256B2 (en) * | 2003-01-31 | 2008-05-06 | Jrb Attachments, Llc | Pressure switch control for attachment coupling system |
EP2450490B1 (en) * | 2006-05-02 | 2018-04-04 | Kinshofer GmbH | Safety locking device for a quick coupler |
GB2474572B (en) * | 2009-10-16 | 2014-11-26 | Hill Engineering Ltd | Control system for a hydraulic coupler |
-
2012
- 2012-10-15 DE DE202012009838U patent/DE202012009838U1/en not_active Expired - Lifetime
-
2013
- 2013-07-15 EP EP13003552.0A patent/EP2690223B1/en not_active Not-in-force
- 2013-07-18 US US13/945,723 patent/US9382686B2/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4850790A (en) * | 1988-06-27 | 1989-07-25 | J. I. Case Company | Hydraulically actuated coupler for industrial, agricultural, or earth-moving vehicle |
EP0671512A2 (en) * | 1994-03-12 | 1995-09-13 | O&K ORENSTEIN & KOPPEL AG | Hydraulic locking device for quick couplings in construction machines |
GB2330568A (en) * | 1997-10-22 | 1999-04-28 | Caterpillar Inc | Quick coupling device with over centre spring |
US20040244575A1 (en) * | 2003-01-31 | 2004-12-09 | Fatemi Ray S. | Electrical and hydraulic control system for attachment coupling system |
EP2161378A1 (en) * | 2008-09-08 | 2010-03-10 | HILL, Ian | Coupler with gravity operated safety device |
GB2474573A (en) * | 2009-10-16 | 2011-04-20 | Hill Engineering Ltd | Control apparatus for a hydraulic coupler |
JP2011099239A (en) * | 2009-11-05 | 2011-05-19 | Takeuchi Seisakusho:Kk | Working machine |
Also Published As
Publication number | Publication date |
---|---|
US9382686B2 (en) | 2016-07-05 |
EP2690223B1 (en) | 2019-01-16 |
DE202012009838U1 (en) | 2013-10-25 |
EP2690223A2 (en) | 2014-01-29 |
US20140030005A1 (en) | 2014-01-30 |
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: F15B 20/00 20060101ALI20170515BHEP Ipc: F15B 13/02 20060101ALI20170515BHEP Ipc: E02F 9/22 20060101ALI20170515BHEP Ipc: E02F 3/36 20060101AFI20170515BHEP |
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