Patents by Inventor Marcus Schuller

Marcus Schuller 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: 20250025979
    Abstract: A tool receiving device for an arrangement of at least one tool mechanism, in particular of at least one tool disc, on a portable machine tool, in particular on an angle grinder is disclosed. The tool receiving device has (i) at least one receiving unit on which the at least one tool mechanism can be fixed, and (ii) at least one retaining unit particularly rotatably supported on the receiving unit for at least axially fixing the receiving unit, in particular the tool mechanism, on an output unit. The receiving unit includes at least one driver element and at least one mounting element which are rotatably connectable to each other by the retaining unit. The retaining unit includes at least one retaining element which is configured for a screw connection to the output unit.
    Type: Application
    Filed: October 26, 2022
    Publication date: January 23, 2025
    Inventors: Marcus Schuller, Daniel Barth, Johannes Wolperding
  • Publication number: 20250018519
    Abstract: A tool receiving device is for a portable machine tool, in particular for an angle grinder. The tool receiving device includes at least one output unit with at least one output spindle which can be rotated, and at least one rapid clamping unit which is arranged on the output spindle and includes at least one torque transmission element that is connected to the output spindle in a rotationally fixed manner, and at least one securing element, in particular a securing element which is movably mounted in an axial direction along an output axis of the output spindle. The tool receiving device further includes at least one locking unit for preventing the output spindle from rotating, and at least one actuating unit that has at least one actuating element, in particular a movably mounted actuating element.
    Type: Application
    Filed: October 26, 2022
    Publication date: January 16, 2025
    Inventors: Noah Bernhard, Marcus Schuller, Johannes Wolperding, Mustafa Celep, Christoph Wittig
  • Publication number: 20240351172
    Abstract: A hand-held power tool includes a housing, a drive motor, an intermediate shaft that can be driven by the drive motor, and a percussion mechanism. The percussion mechanism has a striker and at least one percussion mechanism spring which is connected to the striker in a rotationally fixed manner, and the percussion mechanism can be driven at least in part by the intermediate shaft. The hand-held power tool further includes a tool holder, which is configured for holding an insert tool, and can be driven by means of the percussion mechanism, in particular the striker and/or the intermediate shaft. The intermediate shaft includes at least one bearing, and the percussion mechanism spring is connected to the bearing in a rotationally fixed manner.
    Type: Application
    Filed: December 9, 2022
    Publication date: October 24, 2024
    Inventors: Marcus Schuller, Rainer Britz, Simon Erbele
  • Patent number: 12109666
    Abstract: A quick clamping device for a portable power tool, in particular an angle grinder, includes an output shaft that is configured to be driven in rotation and at least one clamping unit that is configured to fix an application tool unit to the output shaft without tools. The clamping unit has at least one movably mounted clamping element configured to apply a clamping force to the application tool unit in a clamping position of the clamping element. The clamping element is formed by a positive-locking element that is movable transversely to an axis of rotation of the output shaft and is configured to engage behind at least a subregion of the application tool unit in a positive-locking manner so as to secure the application tool unit.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: October 8, 2024
    Assignee: Robert Bosch GmbH
    Inventors: Bruno Sinzig, Andreas Zurbruegg, Marcus Schuller, Bruno Luescher
  • Publication number: 20240261999
    Abstract: A tool device for a hand-held power tool, which can be operated such that the tool device is rotated about an output shaft of a tool-holding device, has at least one connecting device, which is detachably connected to an output shaft of the power tool. The connecting device is fastened to the tool-holding device so that a drive axis of the output shaft and a tool axis of rotation substantially coincide. The connecting device has a cut-out and at least one clamping wing, which at least partly bounds the cut-out in the radial direction of the tool axis of rotation and which is bounded substantially in the direction radial to the tool axis of rotation by a first bounding edge, which lies on a first bounding circle around the tool axis of rotation. The clamping wing extends at least substantially along a plane orthogonal to the tool axis of rotation.
    Type: Application
    Filed: March 22, 2024
    Publication date: August 8, 2024
    Inventors: Willi Fellmann, Bruno Luescher, Andreas Zurbruegg, Aldo Di Nicolantonio, Bruno Sinzig, Laurent Quebatte, Marcus Schuller
  • Publication number: 20240246205
    Abstract: A method for operating a hand-held power tool, preferably a rotary impact wrench, the hand-held power tool comprising a tool holder for receiving a tool such as a tool bit or a nut, wherein the tool is configured to rotatably drive the fastener via a corresponding drive of a fastener includes partially releasing the fastener from a screwed state, by rotating the tool holder and thus the fastener in a first direction of rotation, rotating the tool holder in a second direction or rotation opposite the first direction of rotation, and renewed rotating of the tool holder and thus the fastener in the first direction of rotation.
    Type: Application
    Filed: January 14, 2024
    Publication date: July 25, 2024
    Inventors: Christoph Steurer, Jasmin Giessler, Marcus Schuller, Stefan Mock, Simon Erbele, Wolfgang Herberger
  • Publication number: 20240246202
    Abstract: A method for operating a hand-held power tool, in particular a rotary impact wrench, the hand-held power tool comprising a tool holder for receiving a tool such as a tool bit or a nut, wherein the tool is configured to rotatably drive the fastening element via a corresponding drive of a fastening element, includes screwing the fastening element into a substrate while rotating the tool holder, and thus the fastening element, in a first direction of rotation, and rotating the tool holder in a second direction of rotation opposite the first direction of rotation at a predefined speed and for a predefined time period.
    Type: Application
    Filed: January 14, 2024
    Publication date: July 25, 2024
    Inventors: Jasmin Giessler, Christoph Steurer, Marcus Schuller, Stefan Mock, Simon Erbele, Wolfgang Herberger
  • Publication number: 20240227033
    Abstract: A power tool, in particular a hand-held power tool, includes a tool-holding device that rotates about an output axis. The tool-holding device is configured to hold a tool device on the power tool such that the output axis and a tool rotation axis substantially coincide. The tool-holding device has at least a driver device and a clamping device that is movable relative to the driver device. To transfer a driving force to the tool device, the driver device has at least one torque transfer region that is arranged at a distance from the output axis. The driver device and the clamping device are configured to reach through a cut-out of the tool device, which cut-out extends through the entire material thickness of the tool device, and to clamp the tool device via the clamping device, which is movable substantially in a direction radial to the output axis.
    Type: Application
    Filed: March 27, 2024
    Publication date: July 11, 2024
    Inventors: Willi Fellmann, Bruno Luescher, Aldo Di Nicolantonio, Andreas Zurbruegg, Bruno Sinzig, Laurent Quebatte, Marcus Schuller
  • Patent number: 11980947
    Abstract: A power tool, in particular a hand-held power tool, includes a tool-holding device that rotates about an output axis. The tool-holding device is configured to hold a tool device on the power tool such that the output axis and a tool rotation axis substantially coincide. The tool-holding device has at least a driver device and a clamping device that is movable relative to the driver device. To transfer a driving force to the tool device, the driver device has at least one torque transfer region that is arranged at a distance from the output axis. The driver device and the clamping device are configured to reach through a cut-out of the tool device, which cut-out extends through the entire material thickness of the tool device, and to clamp the tool device via the clamping device, which is movable substantially in a direction radial to the output axis.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: May 14, 2024
    Assignee: Robert Bosch GmbH
    Inventors: Willi Fellmann, Bruno Luescher, Aldo Di Nicolantonio, Andreas Zurbruegg, Bruno Sinzig, Laurent Quebatte, Marcus Schuller
  • Publication number: 20240149411
    Abstract: A method for operating a hand-held power tool, in particular a rotary impact wrench, the hand-held power tool comprising an electric motor, the method including selecting an application class depending on at least one hardness and/or strength property of a substrate in which a screwdriving operation is to be carried out, and selecting an operation mode from an operation mode group comprising a first operation mode and a second operation mode, based at least in part on the application class. The first operation mode has a first maximum torque level of the electric motor per application class and the second operation mode has a second maximum torque level per application class. Furthermore, a hand-held power tool, in particular an impact wrench, having an electric motor and a control unit is disclosed, the control unit being designed for carrying out a method according to the disclosure.
    Type: Application
    Filed: October 30, 2023
    Publication date: May 9, 2024
    Inventors: Marcus Schuller, Tobias Herr, Simon Erbele, Wolfgang Herberger
  • Patent number: 11969911
    Abstract: A tool device for a hand-held power tool, which can be operated such that the tool device is rotated about an output shaft of a tool-holding device, has at least one connecting device, which is detachably connected to an output shaft of the power tool. The connecting device is fastened to the tool-holding device so that a drive axis of the output shaft and a tool axis of rotation substantially coincide. The connecting device has a cut-out and at least one clamping wing, which at least partly bounds the cut-out in the radial direction of the tool axis of rotation and which is bounded substantially in the direction radial to the tool axis of rotation by a first bounding edge, which lies on a first bounding circle around the tool axis of rotation. The clamping wing extends at least substantially along a plane orthogonal to the tool axis of rotation.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: April 30, 2024
    Assignee: Robert Bosch GmbH
    Inventors: Willi Fellmann, Bruno Luescher, Andreas Zurbruegg, Aldo Di Nicolantonio, Bruno Sinzig, Laurent Quebatte, Marcus Schuller
  • Patent number: 11717935
    Abstract: A quick-clamping device for a portable machine tool, in particular for an angle grinder, includes at least one clamping unit and at least one control unit. The clamping unit includes at least one clamping element mounted movably with respect to a movement axis of the clamping unit so that the clamping unit is configured for tool-free fixing of an insertion tool unit to an output shaft of the portable machine tool. The control unit includes at least one movably mounted control element configured to actuate the clamping unit. The control element is mounted at least in a translatory and/or pivotable manner and is configured to transfer the clamping unit from a clamping position into a release position according to a movement of the control element.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: August 8, 2023
    Assignee: Robert Bosch GmbH
    Inventors: Bruno Luescher, Andreas Zurbruegg, Bruno Sinzig, Marcus Schuller
  • Patent number: 11607772
    Abstract: A quick clamping device for a portable machine tool includes at least one drive shaft, at least one clamping unit, and at least one operating unit. The clamping unit has, for tool-less fastening of an insertion tool on the drive shaft, at least one clamping element for exerting a clamping force on the insertion tool in a clamping position. The operating unit is configured to move the clamping element into a release position, and includes at least one operating element, in particular an operating lever. The operating element has at least one activation surface for movement of the clamping element into the release position. The activation surface is arranged such that at least one force initiation point of the operating element is movable, upon interaction with a contact surface of an actuating element of the operating unit, as a factor of movement of the operating element on the contact surface.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: March 21, 2023
    Assignee: Robert Bosch GmbH
    Inventors: Bruno Luescher, Andreas Zurbruegg, David Winistoerfer, Alexander Wuensche, Marcus Schuller
  • Publication number: 20210221021
    Abstract: A tool device for a hand-held power tool, which can be operated such that the tool device is rotated about an output shaft of a tool-holding device, has at least one connecting device, which is detachably connected to an output shaft of the power tool. The connecting device is fastened to the tool-holding device so that a drive axis of the output shaft and a tool axis of rotation substantially coincide. The connecting device has a cut-out and at least one clamping wing, which at least partly bounds the cut-out in the radial direction of the tool axis of rotation and which is bounded substantially in the direction radial to the tool axis of rotation by a first bounding edge, which lies on a first bounding circle around the tool axis of rotation. The clamping wing extends at least substantially along a plane orthogonal to the tool axis of rotation.
    Type: Application
    Filed: February 11, 2021
    Publication date: July 22, 2021
    Inventors: Willi Fellmann, Bruno Luescher, Andreas Zurbruegg, Aldo Di Nicolantonio, Bruno Sinzig, Laurent Quebatte, Marcus Schuller
  • Patent number: 11052564
    Abstract: A tool device for a hand-held power tool, which can be operated such that the tool device is rotated about an output shaft of a tool-holding device, has at least one connecting device, which is detachably connected to an output shaft of the power tool. The connecting device is fastened to the tool-holding device so that a drive axis of the output shaft and a tool axis of rotation substantially coincide. The connecting device has a cut-out and at least one clamping wing, which at least partly bounds the cut-out in the radial direction of the tool axis of rotation and which is bounded substantially in the direction radial to the tool axis of rotation by a first bounding edge, which lies on a first bounding circle around the tool axis of rotation. The clamping wing extends at least substantially along a plane orthogonal to the tool axis of rotation.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: July 6, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Willi Fellmann, Bruno Luescher, Andreas Zurbruegg, Aldo Di Nicolantonio, Bruno Sinzig, Laurent Quebatte, Marcus Schuller
  • Patent number: 10828742
    Abstract: A quick tensioning device for a portable machine tool, in particular for an angle grinding machine, includes at least one output shaft which can be rotated, at least one clamping unit that is at least partly arranged in the output shaft and has at least one clamping element, which is movably mounted at least about and/or along a movement axis of the clamping unit, for fixing an insert tool unit to the output shaft without tools, and at least one torque transmission unit for transmitting a torque to the insert tool unit when the insert tool unit is arranged on the output shaft, said torque transmission unit having at least one torque transmission element which is formed separately from the output shaft. The quick tensioning device includes at least one securing unit at least for securing the torque transmission element to the output shaft in a rotationally fixed manner.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: November 10, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Bruno Luescher, Andreas Zurbruegg, Bruno Sinzig, Marcus Schuller
  • Publication number: 20200164485
    Abstract: A quick clamping device for a portable power tool, in particular an angle grinder, includes an output shaft that is configured to be driven in rotation and at least one clamping unit that is configured to fix an application tool unit to the output shaft without tools. The clamping unit has at least one movably mounted clamping element configured to apply a clamping force to the application tool unit in a clamping position of the clamping element. The clamping element is formed by a positive-locking element that is movable transversely to an axis of rotation of the output shaft and is configured to engage behind at least a subregion of the application tool unit in a positive-locking manner so as to secure the application tool unit.
    Type: Application
    Filed: July 31, 2018
    Publication date: May 28, 2020
    Inventors: Bruno Sinzig, Andreas Zurbruegg, Marcus Schuller, Bruno Luescher
  • Publication number: 20200114490
    Abstract: A protective device for a hand-held power tool, in particular an angle grinder, includes a machine housing, a protective hood, and a securing element. The machine housing has a flange neck that surrounds an output shaft that defines an output axis. The protective hood has a protective hood collar. The securing element is formed as a securing ring that is configured, in at least one operating state, to prevent the protective hood from twisting relative to the machine housing. The machine housing is configured to be detachably connected to one or more of the protective hood and the securing element. The securing ring has a thread, in particular an internal thread, which in at least one connection state is configured to movably mount and hold the protective hood in an axial direction of the output axis relative to the flange neck.
    Type: Application
    Filed: July 26, 2018
    Publication date: April 16, 2020
    Inventors: Sinisa Andrasic, Jakob Meier, Marcus Schuller
  • Publication number: 20200094373
    Abstract: A quick-clamping device for a portable machine tool, in particular for an angle grinder, includes at least one clamping unit and at least one control unit. The clamping unit includes at least one clamping element mounted movably with respect to a movement axis of the clamping unit so that the clamping unit is configured for tool-free fixing of an insertion tool unit to an output shaft of the portable machine tool. The control unit includes at least one movably mounted control element configured to actuate the clamping unit. The control element is mounted at least in a translatory and/or pivotable manner and is configured to transfer the clamping unit from a clamping position into a release position according to a movement of the control element.
    Type: Application
    Filed: July 5, 2018
    Publication date: March 26, 2020
    Inventors: Bruno Luescher, Andreas Zurbruegg, Bruno Sinzig, Marcus Schuller
  • Publication number: 20190262970
    Abstract: A quick clamping device for a portable machine tool includes at least one drive shaft, at least one clamping unit, and at least one operating unit. The clamping unit has, for tool-less fastening of an insertion tool on the drive shaft, at least one clamping element for exerting a clamping force on the insertion tool in a clamping position. The operating unit is configured to move the clamping element into a release position, and includes at least one operating element, in particular an operating lever. The operating element has at least one activation surface for movement of the clamping element into the release position. The activation surface is arranged such that at least one force initiation point of the operating element is movable, upon interaction with a contact surface of an actuating element of the operating unit, as a factor of movement of the operating element on the contact surface.
    Type: Application
    Filed: October 4, 2017
    Publication date: August 29, 2019
    Inventors: Bruno Luescher, Andreas Zurbruegg, David Winistoerfer, Alexander Wuensche, Marcus Schuller