Patents by Inventor Joachim Hecht

Joachim Hecht 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).

  • Publication number: 20110207571
    Abstract: A switchable gear in a handheld power tool has at least two gear stages which are to be engaged via an adjustable switching member, the switching member being in a latched position via a retaining element fixedly held against a housing in a first gear stage. Furthermore, a spindle for receiving a tool may be driven via an axially spring-loaded gear wheel, the gear wheel being axially supported on the retaining element on the side opposite the switching member.
    Type: Application
    Filed: July 14, 2009
    Publication date: August 25, 2011
    Inventors: Joachim Hecht, Heiko Roehm, Martin Kraus, Dietmar Saur
  • Publication number: 20110024149
    Abstract: The invention relates to a hand-held power tool, especially a rotary hammer and/or chisel hammer The hand-held power tool is provided with a vibration dampening unit having a first absorber mass unit with a first vibration dampening direction and at least one second absorber mass unit with a second vibration dampening direction. The hand-held power tool in particular has the first vibration dampening direction of the first absorber mass unit disposed as substantially parallel to the second vibration dampening direction of the second absorber mass unit.
    Type: Application
    Filed: November 18, 2008
    Publication date: February 3, 2011
    Inventors: Joachim Hecht, Gerd Schlesak, Juergen Lennartz, Stefan Holst, Klaus Kuespert
  • Patent number: 7836797
    Abstract: A tool ratchet for tightening and loosening screws and/or nuts and the like, has a handle and a receiving piece operatively connected with handle via a ratchet mechanism, and with an electric motor, with which torque is transferable to the receiving piece via a non-positive connection, and a coupling for disconnecting the non-positive connection.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: November 23, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Joachim Hecht, Martin Kraus
  • Publication number: 20100277897
    Abstract: The invention relates to a machine tool having working field illumination disposed in a housing, having an illumination mechanism and a transparent element which allows the light from the illumination mechanism to be led out toward the working field. A light beam can be deflected between the illumination mechanism and the transparent element. According to the invention, the transparent element forms a region of the housing.
    Type: Application
    Filed: November 11, 2008
    Publication date: November 4, 2010
    Inventors: Joachim Hecht, Jens Brennenstuhl, Heiko Roehm
  • Publication number: 20100225075
    Abstract: The invention describes a hand power tool with a drive spindle and an integrated tool holder. The drive spindle can be connected to the tool holder in a rotationally fixed and undetachable manner, and the tool holder has at least one magnet. The drive spindle is connected to the tool holder such that at least one first section of the drive spindle is permanently connected to the tool holder and at least one second section of the drive spindle is present which is at least as long as the first section.
    Type: Application
    Filed: June 9, 2008
    Publication date: September 9, 2010
    Inventor: Joachim Hecht
  • Publication number: 20100186622
    Abstract: An embodiment of the present invention discloses a kit for a body-shell structure of a rail vehicle, including a carrier structure with at least two upper belts and a plurality of roof cross members for the roof region of the space frame, at least two lower belts and a plurality of bottom cross members for a bottom region of the body, a plurality of columns running perpendicular and a plurality of window belts for side regions of the body. An embodiment of the present invention further includes at least one head module, wherein the shell structure has a modular design. The upper belts and the lower belts are connected via knots to adjoining cross members, perpendicular columns and/or window belts, wherein the upper belts and the lower belts have a uniform profile cross-section and the knots are at least partially of uniform design.
    Type: Application
    Filed: May 7, 2008
    Publication date: July 29, 2010
    Inventors: Martino Cellghini, Joachim Hecht, Andreas Stockinger
  • Publication number: 20100132497
    Abstract: A handheld power tool is provided with a shiftable gear that has at least two gear steps which are meant to be selected via a user control element disposed adjustably on the housing, which user control element actuates a transmission member that acts upon an adjustable gear component, and the user control element is intended to be adjusted between at least two detent positions that correspond to the gear steps of the gear. The transmission member is intended to be adjusted into the detent positions, which can be transmitted to the user control element via the coupling between the user control element and the transmission member.
    Type: Application
    Filed: December 2, 2009
    Publication date: June 3, 2010
    Inventors: Joachim Hecht, Martin Kraus
  • Patent number: 7708083
    Abstract: A hand power tool has a percussion mechanism; a drive motor that drives the percussion mechanism; a conversion element for converting a movement of the drive motor into an axial movement; and an operating unit that adjusts a rotary movement of the conversion element within a percussion period depending on at least one optimization criterium.
    Type: Grant
    Filed: October 5, 2004
    Date of Patent: May 4, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Friedmar Dresig, Joachim Hecht
  • Publication number: 20090277020
    Abstract: The invention relates to a hand tool machine protection device for a hand tool machine (12), having at least one operating element (14, 16) and a shut-off unit (18), which brings about a shut-off during a deactivation of the control element (14, 16) by means of at least one shut-off means (24). The invention provides that the hand tool machine protection device comprises an emergency shut-off unit (28), which is provided for an emergency shut-off of an operation of the tool (26) with an activated operating element (14, 16).
    Type: Application
    Filed: October 16, 2007
    Publication date: November 12, 2009
    Inventors: Joachim Hecht, Martin Kraus
  • Patent number: 7444760
    Abstract: A marking device, in particular a hand-held marking tool for positioning markings, comprises first means (50, 52, 54, 56) which make it possible to position the device (10) in a predefinable first position of a reference surface (16), and second means (46) for leveling the device (10) relative to the reference surface (16), as well as a tracking system (13) for determining a distance covered by the device (10) relative to the first position of the device. The tracking system (13) detects the movement of the measuring instrument (10) on the reference surface (16) in two orthogonal directions (18,20).
    Type: Grant
    Filed: May 3, 2005
    Date of Patent: November 4, 2008
    Assignee: Robert Bosch GmbH
    Inventors: Erhard Hoffmann, Stefan Clauss, Joachim Hecht, Christian Heine, Reiner Krapf, Julian Bergmann
  • Publication number: 20080137102
    Abstract: The invention relates to a device for positioning markings, having a first equipment unit (10), having means (14) for disposing the first equipment unit (10) at a predeterminable first position (18) of a reference face (16), and having optical signal means (20, 22, 50, 54, 60, 62, 64, 66) for generating directional information. According to the invention, it is proposed that the device has a second equipment unit (12, 13), which is positionable relative to the first equipment unit (10) and which has means (20, 22, 28, 50, 54, 60, 62, 64, 66), which make it possible to ascertain the spacing of the second equipment unit (12, 13) from the first equipment unit (10) in the direction predetermined by the first equipment unit.
    Type: Application
    Filed: May 3, 2005
    Publication date: June 12, 2008
    Inventors: Erhard Hoffmann, Stefan Clauss, Joachim Hecht, Christian Heine, Reiner Krapf, Jullian Bergmann
  • Publication number: 20080115632
    Abstract: A tool ratchet for tightening and loosening screws and/or nuts and the like, has a handle and a receiving piece operatively connected with handle via a ratchet mechanism, and with an electric motor, with which torque is transferrable to the receiving piece via a non-positive connection, and a coupling for disconnecting the non-positive connection.
    Type: Application
    Filed: October 25, 2007
    Publication date: May 22, 2008
    Inventors: Joachim Hecht, Martin Kraus
  • Publication number: 20080066330
    Abstract: A marking device, e.g., a hand-held marking tool for positioning markings, includes a first arrangement which make it possible to position the device in a predefinable first position of a reference surface, and a second arrangement for leveling the device relative to the reference surface, as well as a tracking system for determining a distance covered by the device relative to the first position of the device. The tracking system detects the movement of the measuring instrument on the reference surface in two orthogonal directions.
    Type: Application
    Filed: May 3, 2005
    Publication date: March 20, 2008
    Inventors: Erhard Hoffmann, Stefan Clauss, Joachim Hecht, Christian Heine, Reiner Krapf, Julian Bergmann
  • Patent number: 7258351
    Abstract: A quick-action chuck, in particular for a power tool, has an actuating element (20) and a control device which includes at least one mechanism (12, 22, 36, 42, 50) for controlling at least one locking device (10) that serves to absorb a chucking reinforcement force via the locking device (10) that is controllable by the control device, a positive-engagement connection can be brought about for absorbing the chucking reinforcement force.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: August 21, 2007
    Assignee: Robert Bosch GmbH
    Inventors: Erhard Hoffmann, Joachim Hecht, Siegfried Keusch
  • Patent number: 7198439
    Abstract: A quick chuck for a hand power tool has an actuating element, at least one arresting element for receiving a clamping support force, a control device having at least one control unit for controlling the at least one arresting element, the arresting element controllable by the control device producing a form-locking connection for receiving the clamping support force.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: April 3, 2007
    Assignee: Robert Bosch GmbH
    Inventors: Erhard Hoffmann, Joachim Hecht, Siegfried Keusch
  • Patent number: 6988562
    Abstract: The invention is based on a hand power tool, having a drive shaft (12, 14) supported in the housing (10) and having a mechanical percussion mechanism (16, 18, 20, 22, 24), which has a striker (26, 28) that is driven in hammering fashion via a driver unit (32, 34) supported on an intermediate shaft (30), which driver unit has at least one curve element (36, 38) by way of which at least one transmission unit (40, 42, 44, 46) with a tracer member is movable. It is proposed that the curve element (36, 38) has at least one first and at least one second curved path segment (56, 58, 60, 62), the first curved path segment acting in a first axial direction of the intermediate shaft (30) and the second curved path segment acting in a second axial direction of the intermediate shaft (30).
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: January 24, 2006
    Assignee: Robert Bosch GmbH
    Inventor: Joachim Hecht
  • Patent number: 6920694
    Abstract: A hand-guided saber saw, has a drive unit by way of which a tool, in particular a saw blade, can be driven, and with a tool guide mechanism, by way of which the tool can be guided laterally by guide elements, and the tool guide mechanism has a control motor, by way of which a spacing between the guide elements can be adjusted to a tool thickness, and the tool guide mechanism has pivot arms, connected via a joint, on which arms the guide elements are disposed.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: July 26, 2005
    Assignee: Robert Bosch GmbH
    Inventors: Joachim Hecht, Klaus Wurst, Stephan Jonas, Siegfried Keusch
  • Publication number: 20050072584
    Abstract: A hand power tool has a percussion mechanism; a drive motor that drives the percussion mechanism; a conversion element for converting a movement of the drive motor into an axial movement; and an operating unit that adjusts a rotary movement of the conversion element within a percussion period depending on at least one optimization criterium.
    Type: Application
    Filed: October 5, 2004
    Publication date: April 7, 2005
    Inventors: Friedmar Dresig, Joachim Hecht
  • Patent number: 6848985
    Abstract: The dust removal device comprises a fan (18), a dust collection receptacle (24), and a suction passage (28). The dust collection receptacle (24) equipped with a dust filter (26) is located in the path of air flow (34, 36) between the suction passage (28) and the fan (18). The dust is therefore filtered out of the air stream before it reaches the fan, which prevents dust-induced wear. It is also possible to use the same fan for engine cooling as well as dust removal.
    Type: Grant
    Filed: October 17, 2001
    Date of Patent: February 1, 2005
    Assignee: Robert Bosch GmbH
    Inventors: Justus Lamprecht, Joachim Hecht, Stephan Jonas
  • Publication number: 20040251641
    Abstract: The invention is based on a quick-action chuck, in particular for a power tool, having an actuating element (20) and having a control device which includes at least one means (12, 22, 36, 42, 50) for controlling at least one locking device (10) that serves to absorb a chucking reinforcement force.
    Type: Application
    Filed: March 31, 2004
    Publication date: December 16, 2004
    Inventors: Erhard Hoffmann, Joachim Hecht, Siegfried Keusch