Patents Assigned to Hamm AG
  • Patent number: 9222226
    Abstract: A device for detection of the motion of a compactor roller (20) of a soil compactor (10) rotatable about an axis of rotation (A), where said roller comprises on one inside of a roller mantle (22) a plurality of motion sensors (ai) arranged in the circumferential direction around the axis of rotation (A) and at a spacing from each other and moveable with the roller mantle (22) around the axis of rotation (A).
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: December 29, 2015
    Assignee: HAMM AG
    Inventors: Sebastian Villwock, Werner Völkel
  • Patent number: 9206576
    Abstract: The invention relates to a compactor roller for a soil compactor, comprising at least one exchangeable holder (22) on an outer circumference in order to attach a rolling tool (16).
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: December 8, 2015
    Assignee: HAMM AG
    Inventor: Matthias Meier
  • Patent number: 9169604
    Abstract: A self-propelled compaction roller comprises a drive system having a drive assembly, a hydrostatic/mechanical transmission arrangement with a hydraulic pump, which can be driven by a primary drive of the drive assembly, and with a hydraulic motor, further having a supporting drive arrangement having a charging/driving unit and an energy storage unit, wherein the charging/driving unit can be operated in a charging mode for storing energy in the energy storage unit and can be operated in a supporting mode by withdrawing energy from the energy storage unit in order to provide a supporting torque, wherein the charging/driving unit is coupled to a power take-off of the drive assembly.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: October 27, 2015
    Assignee: HAMM AG
    Inventors: Ronny Pieske, Andreas Roehr, Thomas Henker, Dieter Stoecklein, Axel Roemer
  • Publication number: 20150276794
    Abstract: A method is provided for the correction of a measured value curve by eliminating periodically occurring measurement artifacts. The method includes steps of provision of a measured value curve representing a periodically repeating event, division of the measured value curve into period-measured value curves allocated to a plurality of successive periods of the periodically repeating event, based on the period-measured value curves allocated to the plurality of periods, determination of a mean period-measured value curve, formation of a difference between the period-measured value curves allocated to the plurality of periods, and the mean period-measured value curve for the provision of the difference-period-measured value curves allocated in each case to the periods, and based on the difference-period-measured value curves, determination of a corrected measured value curve for the plurality of successive periods of the periodically repeating event.
    Type: Application
    Filed: March 24, 2015
    Publication date: October 1, 2015
    Applicant: Hamm AG
    Inventors: Johannes Pistrol, Fritz Kopf, Werner Völkel, Sebastian Villwock
  • Patent number: 9127428
    Abstract: A sheathing arrangement for a soil-working roller (10), in particular for a soil compactor, comprises a plurality of immediately consecutive sheathing members (22) that are connected or connectable in chain-type fashion in longitudinal direction of an arrangement (L).
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: September 8, 2015
    Assignee: HAMM AG
    Inventor: Matthias Meier
  • Publication number: 20150241333
    Abstract: A method to determine a slip state of the compactor roller of a soil compactor caused by an oscillation motion of a compactor roller, comprising the steps: a) Preparation of an acceleration quantity related to the oscillation motion of the compactor roller b) Based on the acceleration quantity, preparation of an acceleration frequency spectrum, c) Based on the acceleration frequency spectrum, determining the slip state of the compactor roller.
    Type: Application
    Filed: February 25, 2015
    Publication date: August 27, 2015
    Applicant: Hamm AG
    Inventors: Johannes Pistrol, Fritz Kopf, Werner Völkel, Sebastian Villwock
  • Publication number: 20150211195
    Abstract: A compactor roller for a soil compactor comprises an oscillation mass assembly (34) including at least one oscillation shaft (36) rotatable about an oscillation-shaft axis of rotation eccentric to a compactor-roller axis of rotation, which oscillation mass assembly (34) includes at least one oscillation unbalance mass (66, 68), and a vibration mass assembly (84) including a vibration shaft (86) rotatable about a vibration shaft axis of rotation (Dv), which vibration mass assembly (84) includes at least one vibration unbalance mass (96), wherein at least one oscillation shaft (36, 38) and the vibration shaft (86) are carried in the compactor roller (10) such that they can be driven to rotate.
    Type: Application
    Filed: January 31, 2013
    Publication date: July 30, 2015
    Applicant: HAMM AG
    Inventors: Richard Fischer, Günter Kolberg, Günter Rath, Josef Dagner
  • Publication number: 20150204029
    Abstract: In a self-propelling road construction machine, particularly a road roller (1), comprising a travel drive, a steering device, a control device (30) for the travel drive and the steering device, and a driver's seat (5) rotatable by at least 180° and including an integrated operating element (8) for the vehicle speed, with the operating element (8) generating the control signals for the travel drive in dependence on the direction of the control movement of the operating element (8) or the direction of force application on the operating element (8), it is provided that, in response to a first switching command, the control device (30) will automatically perform a reversing process comprising deceleration, seat rotation, change of direction of travel, and acceleration to the set vehicle speed in opposite direction to the original direction of travel.
    Type: Application
    Filed: January 21, 2015
    Publication date: July 23, 2015
    Applicant: HAMM AG
    Inventors: Detlef BORNEMANN, Axel ROEMER, Gerhard MAHLER, Andreas BAUMANN
  • Publication number: 20150176226
    Abstract: A drive system, in particular for a self-propelled construction machine, in particular a soil compactor, comprises a drive unit, at least one hydraulic curcuit with a hydraulic pump driven by the drive unit, a hydraulic drive support unit with a hydraulic pump/motor assembly, and at least one pressure fluid reservoir, wherein the hydraulic pump/motor assembly is, or can be, drivingly coupled with the drive unit and/or at least one hydraulic circuit, wherein the hydraulic pump/motor assembly can be operated in a charging operating mode by the drive unit and/or at least one hydraulic circuit as a pump to charge at least one pressure fluid reservoir, and be driven in a drive support operating mode as a motor to provide a drive support torque for the hydraulic pump of at least one hydraulic circuit, characterized in that the hydraulic pump/motor assembly is operated in a recirculation operating mode as a pump to convey fluid out of a fluid reservoir and into a fluid reservoir.
    Type: Application
    Filed: December 17, 2014
    Publication date: June 25, 2015
    Applicant: Hamm AG
    Inventors: Andreas Röhr, Thomas Henker, Ronny Pieske
  • Publication number: 20150174997
    Abstract: A drive system, in particular for a self-propelled construction machine, in particular a soil compactor, comprising an internal combustion engine comprising a drive unit, at least one hydraulic circuit with a hydraulic pump that can be driven by the drive unit, as well as a hydraulic-drive support unit with a hydraulic pump/motor assembly and at least one pressure fluid reservoir, wherein the hydraulic pump/motor assembly is or can be drivingly coupled with the drive unit or/and at least one hydraulic circuit, wherein the hydraulic pump/motor assembly can be operated in a charging operating mode by the drive unit or/and at least one hydraulic circuit as a pump to charge at least one pressure fluid reservoir and be operated in an drive support operating mode as a motor to provide a drive support torque for the hydraulic pump of at least one hydraulic circuit, characterized in that the hydraulic pump/motor assembly can be operated in a recirculation operating mode as a motor to start the drive unit.
    Type: Application
    Filed: December 18, 2014
    Publication date: June 25, 2015
    Applicant: Hamm AG
    Inventors: Andreas Röhr, Thomas Henker, Ronny Pieske
  • Publication number: 20150176227
    Abstract: A drive system, in particular for a self-propelled construction machine, especially a soil compactor, comprising a drive unit, at least one hydraulic circuit with a hydraulic pump drivable by the drive unit, as well as a hydraulic drive support unit with a hydraulic pump/motor assembly and at least one compressed fluid reservoir, wherein the hydraulic pump/motor assembly is, or can be, drivingly coupled to the drive unit and/or to at least one hydraulic circuit, wherein the hydraulic pump/motor assembly can be operated in a charging operating mode as a pump by means of the drive unit and/or by means of at least one hydraulic circuit for charging at least one compressed fluid reservoir, and which is drivable in a drive support state as a motor to provide a drive support torque for the hydraulic pump of at least one hydraulic circuit, is characterized in that a maximum drive torque provided by the drive unit is smaller than a maximum request torque to be applied for operating at least one hydraulic circuit.
    Type: Application
    Filed: December 17, 2014
    Publication date: June 25, 2015
    Applicant: Hamm AG
    Inventors: Andreas Röhr, Thomas Henker, Ronny Pieske
  • Publication number: 20150167257
    Abstract: A method for planning and execution of compacting processes, especially for asphalt compacting, by means of at least one compactor, comprises the steps: a) Defining a base region (B) to be compacted, b) Based on the base region (B) defined in step a), defining a compacting plan with the quantity and course of compactor passes (BVÜ) in the base region (B), c) Movement of at least one compactor (10) in the base region (B) defined in step a) according to the compacting plan defined in step b).
    Type: Application
    Filed: December 11, 2012
    Publication date: June 18, 2015
    Applicant: HAMM AG
    Inventors: Christoph Korb, Matthias Meier
  • Patent number: 9039324
    Abstract: A compaction device includes at least one traveling drum rotatable about a drum shaft and having vibration exciters including unbalanced masses rotating out of phase by 180 degrees in the same direction of rotation and generating an oscillation torque about the drum shaft, and having a drive shaft running coaxial to the drum shaft for driving the vibration exciters. The drum is divided at least once and each drum part includes at least two coupled vibration exciters mounted at a distance from the drum shaft in the drum.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: May 26, 2015
    Assignee: HAMM AG
    Inventors: Hans-Peter Ackermann, Peter Janner
  • Publication number: 20150101424
    Abstract: Device to determine a size of contact representing a contact state between a compactor roller and a substrate to be compacted, encompassing a compactor roller rotatable in at least one acquisition circumference area around a compactor roller axis and at least one contact sensor generating a contact signal, wherein the contact signal indicates a contact start and a contact end of an acquisition circumference area upon the substrate to be compacted.
    Type: Application
    Filed: October 16, 2014
    Publication date: April 16, 2015
    Applicant: HAMM AG
    Inventors: Sebastian VILLWOCK, Werner Völkel, Fritz Kopf
  • Publication number: 20150063909
    Abstract: A quick-change tool holder for the attachment of a drum tool to a compaction drum of a soil compactor comprising a quick-change tool holder body having a central region, wherein a holder opening for receiving a holder shaft of a drum tool is provided in the central region, and two leg portions originating at the central region for firmly connecting the quick-change tool holder body to the outer periphery of a compaction drum, the central region and the leg portions surrounding an open inner space of the quick-change tool holder extending over at least one side opening, characterized in that in association with at least one side opening, a closing element that can be inserted therein is provided.
    Type: Application
    Filed: August 27, 2014
    Publication date: March 5, 2015
    Applicant: HAMM AG
    Inventor: Matthias MEIER
  • Publication number: 20150063908
    Abstract: The present invention relates to a change holder assembly for a compactor roller for a soil compactor comprising a change holder to be fixed to a roller casing and at least one roller tool to be fixed to the change holder using a counterholder which can be caused to engage the change holder and is lockable with respect to the change holder, wherein the change holder has a roller-tool-abutment side and the at least one roller tool has a change holder-abutment side supportable on the roller-tool-abutment side, characterized in that on at least one side of roller-tool-abutment side and change holder-abutment side at least one anti-rotation lug, and on the other side of roller-tool-abutment side and change holder-abutment side at last one anti-rotation recess for receiving an anti-rotation lug are provided.
    Type: Application
    Filed: August 27, 2014
    Publication date: March 5, 2015
    Applicant: HAMM AG
    Inventor: Matthias Meier
  • Publication number: 20150060184
    Abstract: A drive assembly, in particular for a construction machine, comprising a drive unit having a plurality of first fastening regions for the attachment to a machine frame and at least one functional unit that interacts with the drive unit, and a functional unit carrier assigned to said drive unit, is characterized in that the functional unit carrier can be swiveled around at least one swivel axis with respect to the drive unit in a swivel connection region.
    Type: Application
    Filed: August 29, 2014
    Publication date: March 5, 2015
    Applicant: Hamm AG
    Inventors: Markus GOLBS, Michael ZIMMERER
  • Publication number: 20140369752
    Abstract: The invention relates to a compactor roller for a soil compactor, comprising at least one exchangeable holder (22) on an outer circumference in order to attach a rolling tool (16).
    Type: Application
    Filed: November 23, 2012
    Publication date: December 18, 2014
    Applicant: HAMM AG
    Inventor: Matthias Meier
  • Publication number: 20140341650
    Abstract: A device for detection of the motion of a compactor roller (20) of a soil compactor (10) rotatable about an axis of rotation (A), where said roller comprises on one inside of a roller mantle (22) a plurality of motion sensors (ai) arranged in the circumferential direction around the axis of rotation (A) and at a spacing from each other and moveable with the roller mantle (22) around the axis of rotation (A).
    Type: Application
    Filed: December 13, 2012
    Publication date: November 20, 2014
    Applicant: HAMM AG
    Inventors: Sebastian Villwock, Werner Völkel
  • Patent number: D742937
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: November 10, 2015
    Assignee: Hamm AG
    Inventors: Ulrich Ewringmann, Boris Eickhoff