Patents by Inventor Gerhard Meixner

Gerhard Meixner has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9352460
    Abstract: A holding device for hand machine tools, in particular a drill and/or a chipping hammer holding device, includes a hammer tube and at least one blocking body, which, when installed, connects the hammer tube to at least one additional holding component. The blocking body is provided with at least one blocking surface that is curved around at least one load tipping axis.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: May 31, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Hubert Steinke, Lars Schmid, Johannes Schnitzler, Gerhard Meixner, Christian Koepf, Jan Koalick
  • Patent number: 8695723
    Abstract: The invention is based on a hammer drill and/or chisel hammer, having an impact mechanism unit, an impact mechanism housing and at least one damping unit. The invention proposes that the damping unit is arranged on the impact mechanism housing along a main extension direction of the impact mechanism unit.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: April 15, 2014
    Assignee: Robert Bosch GmbH
    Inventors: Immanuel Werner, Harald Schindler, Gerhard Meixner, Juergen Schlipf, Stefan Holst, Andreas Strasser
  • Patent number: 8613328
    Abstract: The invention relates to a hand power tool, in particular a drill hammer and/or chipping hammer, comprising a hammer unit (10a; 10b) for producing a pulse in the direction of a hammer axis (12a; 12b). Said tool has an axial drive unit (14a; 14b) with a drive element (16a; 16b) and a motor unit (18a; 18b), in addition to a motor shaft (20a; 20b), which forms an angle (22a; 22b) not equal to zero with the hammer axis (12a; 12b) and which co-operates with the axial drive unit (14a; 14b) by means of a torque transmission wheel (24a; 24b) of said unit, the axial drive unit (14a; 14b) being mounted on the opposite side of the torque transmission wheel (24a; 24b) from the motor unit (18a; 18b). The driven element (16a; 16b) of the axial drive unit (14a; 14b) is mounted directly on the torque transmission wheel (24a; 24b).
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: December 24, 2013
    Assignee: Robert Bosch GmbH
    Inventors: Gerhard Meixner, Ralph Dammertz, Juergen Lennartz
  • Patent number: 8327949
    Abstract: A hand-held power tool is proposed, having a drive device for driving a tool, which is arranged in a housing of the power tool. A handle of the power tool, which is movably connected to the housing of the power tool, is vibration-damped by a movable compensating element. For this purpose, the movable compensating element is operatively connected to the handle and/or the housing of the power tool by a deflecting system.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: December 11, 2012
    Assignee: Robert Bosch GmbH
    Inventor: Gerhard Meixner
  • Publication number: 20120187639
    Abstract: A holding device for hand machine tools, in particular a drill and/or a chipping hammer holding device, includes a hammer tube and at least one blocking body, which, when installed, connects the hammer tube to at least one additional holding component. The blocking body is provided with at least one blocking surface that is curved around at least one load tipping axis.
    Type: Application
    Filed: April 30, 2010
    Publication date: July 26, 2012
    Applicant: Robert Bosch GmbH
    Inventors: Hubert Steinke, Lars Schmid, Johannes Schnitzler, Gerhard Meixner, Christian Koepf, Jan Koalick
  • Patent number: 8136607
    Abstract: A device has a torque-limiting unit of a power drill, wherein torque-limiting unit is intended to limit a screwdriving moment in a screwdriving function; and a power drill is provided with the new torque-limiting unit.
    Type: Grant
    Filed: June 20, 2005
    Date of Patent: March 20, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Karl Frauhammer, Gerhard Meixner, Heinz Schnerring
  • Patent number: 8096369
    Abstract: The invention relates to a striking mechanism of a handheld electric power tool, in particular a percussion drill and/or percussion hammer, having a hammer cylinder, a piston mounted with a guide section inside the hammer cylinder in a longitudinally displaceable manner, and a piston outer guide on which a guide area of the piston is guided in a longitudinally displaceable manner. A piston end located outside the hammer cylinder comprises an overlap for overlapping an end area of the hammer cylinder, and the guide area at least partially belongs to the overlap or is affixed there.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: January 17, 2012
    Assignee: Robert Bosch GmbH
    Inventor: Gerhard Meixner
  • Patent number: 8061438
    Abstract: The invention relates to a hand tool machine (2), in particular a drilling and/or percussion hammer, with a housing (4) and a vibration-damped handle (10) elastically supported relative to the housing (4) with two essentially parallel legs (20, 22) and a coupling element (44 or 46) between each leg (20 or 22) and the housing (4) that is pin-jointed to the leg (20 or 22) and the housing (4). The coupling elements (44, 46) are connected to each other by a connector (48) that synchronizes the movements of the coupling elements (44, 46).
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: November 22, 2011
    Assignee: Robert Bosch GmbH
    Inventors: Lars Schmid, Johannes Schnitzler, Gerhard Meixner, Juergen Lennartz, Jan Koalick
  • Patent number: 8028761
    Abstract: The invention is based on an electric power tool having at least one drive unit and a gear unit, where the gear unit is a drive element for applying force to a piston unit. It is proposed that the drive element and the piston unit be arranged in an axially parallel manner. At least a region of the drive element overlaps axially with a longitudinal portion of the piston unit. The drive unit is arranged approximately centrally in an axial extension of the piston unit and the longitudinal axis of the drive unit is arranged transversely to the piston longitudinal axis.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: October 4, 2011
    Assignee: Robert Bosch GmbH
    Inventor: Gerhard Meixner
  • Patent number: 8011443
    Abstract: The invention is a striking mechanism for a handheld power tools in particular electric hammer. A piston is arranged in an axially bidirectionally movable manner in a guide tube. A striker is provided which acts on a striking pin and which is held in a movable manner in the guide tube. A compression space is delimited by the piston and the striker such that an air cushion is enclosed therein. It is proposed that at least one spring element is provided between the striker and the striking pin.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: September 6, 2011
    Assignee: Robert Bosch GmbH
    Inventors: Gerhard Meixner, Otto Baumann, Jan Koalick
  • Patent number: 7971655
    Abstract: The invention relates to a hand machine tool (2), particularly a percussion drill and/or percussion hammer, comprising a housing (4) having two parallel appendages (20, 22), a hollow, U-shaped, rounded handle (10) with a yoke (24) and two parallel legs (26, 28), said handle being movably supported on springs in relation to the housing (4) for the purpose of damping vibration. The appendages (20, 22) of the housing (4) extend into both hollow legs (26, 28) of the rounded handle (10). The invention also comprises two coupling elements (34, 36) situated in the hollow yoke (24) of the rounded handle (10) which serve to synchronize the movements of both legs (26, 28). The external end faces of the coupling elements (34, 36) are flexibly connected to the appendages (20, 22). The coupling elements (34, 36) are connected on the other end faces thereof to the rounded handle (10), and cross each other, and are flexibly connected to each other at the crossing point.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: July 5, 2011
    Assignee: Robert Bosch GmbH
    Inventors: Hubert Steinke, Gerhard Meixner
  • Patent number: 7971656
    Abstract: A hand-held power tool, has a housing, at least one partially hollow U-shaped C-shaped handle with a yoke part and two parallel leg parts and supported in a resilient manner such that the handle is movable relative to the housing in order to dampen vibrations, at least one coupling element accommodated at least partially inside the C-shaped handle to synchronize motion between the two leg parts and having a recess, and a switch arranged in a vicinity of the coupling element and having a switch housing extending in an interior of the handle and accommodated in the recess of the coupling element.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: July 5, 2011
    Assignee: Robert Bosch GmbH
    Inventors: Uwe Engelfried, Gerhard Meixner
  • Patent number: 7921935
    Abstract: The invention is based on a portable power tool having a vibration-damped handle (10) which has two legs (12, 14) running in the longitudinal direction (48) of the portable power tool and which is motionally coupled to its housing (28), wherein at least one lever (20, 22; 20a, 22a; 20b, 22b) oriented transversely to the longitudinal direction (48) is coupled to each of the two legs (12, 14) at an articulation point (16, 18; 16a, 18a), and wherein the levers (20, 22; 20a, 22a; 20b, 22b) are coupled to a joint region (50) lying between the two legs (12, 14) of the handle (10). It is proposed that each lever (20, 22; 20a, 22a; 20b, 22b) have a bearing point (24, 26; 24a, 20 26a; 24b, 26b) between the joint region (50) and the respective articulation point (16, 18; 16a, 18a).
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: April 12, 2011
    Assignee: Robert Bosch GmbH
    Inventors: Uwe Engelfried, Lars Schmid, Johannes Schnitzler, Gerhard Meixner, Juergen Lennartz, Jan Koalick
  • Publication number: 20110073339
    Abstract: The invention is based on a hammer drill and/or chisel hammer, having an impact mechanism unit, an impact mechanism housing and at least one damping unit. The invention proposes that the damping unit is arranged on the impact mechanism housing along a main extension direction of the impact mechanism unit.
    Type: Application
    Filed: November 19, 2008
    Publication date: March 31, 2011
    Inventors: Immanuel Werner, Harald Schindler, Gerhard Meixner, Juergen Schlipf, Stefan Holst, Andreas Strasser
  • Patent number: 7886839
    Abstract: The hand-held power tool has a vibration-damped main handle. The hand-held power tool has a device for fastening the main handle to a main element configured so that when the main element moves out of a stationary position toward the main handle the main element swivels around at least one swivel axis so that it is guided along a trajectory that extends with a slant of at least 10° relative to a flat surface, which extends through a longitudinal tool axis and which has a surface normal oriented in a normal direction perpendicular to the longitudinal tool axis. As a result vibrations with a movement component perpendicular to the longitudinal tool axis are damped as well as vibrations that induce motion of the main element in the direction of the longitudinal tool axis toward the main handle.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: February 15, 2011
    Assignee: Robert Bosch GmbH
    Inventors: Karl Frauhammer, Gerhard Meixner, Heiko Roehm, Willy Braun, Axel Kuhnle, Andreas Strasser, Ralph Dammertz, Joachim Schadow, Christian Koepf, Juergen Lennartz
  • Publication number: 20100326689
    Abstract: The invention relates to a striking mechanism of a handheld electric power tool, in particular a percussion drill and/or percussion hammer, having a hammer cylinder, a piston mounted with a guide section inside the hammer cylinder in a longitudinally displaceable manner, and a piston outer guide on which a guide area of the piston is guided in a longitudinally displaceable manner. A piston end located outside the hammer cylinder comprises an overlap for overlapping an end area of the hammer cylinder, and the guide area at least partially belongs to the overlap or is affixed there.
    Type: Application
    Filed: October 29, 2007
    Publication date: December 30, 2010
    Inventor: Gerhard Meixner
  • Patent number: 7857074
    Abstract: The invention is based on a power hand tool, in particular a hammer drill and/or hammer chisel, with a percussion unit (10), which comprises a tumble bearing unit (12) with a tumble body (14) and also a piston (16). It is proposed that the power hand tool comprises at least two bearing locations (18, 20; 22, 24) arranged in parallel in the force of flux, by means of which the tumble body (14) is coupled to the piston (16).
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: December 28, 2010
    Assignee: Robert Bosch GmbH
    Inventor: Gerhard Meixner
  • Publication number: 20100294525
    Abstract: The invention relates to a hand tool machine, particularly a drill and/or chisel hammer, having a striking unit comprising at least one hammer and one striking element, and having a damping device for the striking element for damping a B-strike of the striking element against a striking unit. The invention proposes that the damping device have at least one axial overlap region with the hammer in at least one operating mode.
    Type: Application
    Filed: September 2, 2008
    Publication date: November 25, 2010
    Applicant: Sony France S.A.
    Inventors: Gerhard Meixner, Thomas Bernhardt, Andreas Strasser, Tobias Herr
  • Patent number: 7823256
    Abstract: The invention relates to an additional hand grip (2) for a hand machine tool, comprising a clamp (4) for clamping the additional hand grip (2) to a part of the hand machine tool, a handlebar (6) for gripping and holding of the additional hand grip (2), and a pivot joint (8) that can be blocked, arranged between the clamp (4) and the handlebar (6). The pivot joint (8) can be blocked with an eccentric tension lever (10), which is formed by a pivotable part (24) of the handlebar (6).
    Type: Grant
    Filed: October 1, 2007
    Date of Patent: November 2, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Uwe Engelfried, Lars Schmid, Johannes Schnitzler, Gerhard Meixner, Jan Koalick
  • Publication number: 20100206594
    Abstract: A hand-held power tool is proposed, having a drive device for driving a tool, which is arranged in a housing of the power tool. A handle of the power tool, which is movably connected to the housing of the power tool, is vibration-damped by a movable compensating element. For this purpose, the movable compensating element is operatively connected to the handle and/or the housing of the power tool by a deflecting system.
    Type: Application
    Filed: July 7, 2008
    Publication date: August 19, 2010
    Inventor: Gerhard Meixner