Patents by Inventor Bruno Sinzig

Bruno Sinzig 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: 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: 11865667
    Abstract: A grinding-means device, in particular a grinding-disc device or backup-pad device, for arranging at least one grinding means, in particular at least one grinding wheel, on a portable power tool, in particular a grinding machine, includes at least one receiving unit, in particular a grinding disc or backup pad, which is fixable in a thread-free manner on an output unit of the tool and on which at least one grinding means is arranged. The grinding-means device includes at least one securing unit formed separately from the receiving unit and configured to axially fix the receiving unit and/or the grinding means to the output unit of the tool in a tool-free manner, and/or at least to axially fix the grinding means to the receiving unit in a tool-free manner.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: January 9, 2024
    Assignee: Robert Bosch GmbH
    Inventors: Bruno Sinzig, Stefan Christen, Michael Laett, Laurent Quebatte, David Winistoerfer
  • 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
  • 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
  • Publication number: 20210053176
    Abstract: A quick clamping device for a machine tool, in particular for a hand-held machine tool, includes at least one clamping device that is moveably mounted in particular on an output spindle of the machine tool that can be rotationally driven about an output shaft of the machine tool, at least for axially securing a tool device, in particular an insert tool, on the output spindle of the machine tool. The quick clamping device includes at least one movement securing unit having at least one movement securing element arranged in particular on the clamping device, which is provided for a movement of the tool device, in particular in a rotary drive position, and/or for securing the tool device.
    Type: Application
    Filed: February 18, 2019
    Publication date: February 25, 2021
    Inventors: Aldo Di Nicolantonio, Stefano Delfini, Bruno Sinzig, Massimo Tolazzi, Florian Esenwein
  • Publication number: 20210031326
    Abstract: A positioning device for a machine tool, in particular for a hand-held machine tool having a rotationally driveable output spindle, includes at least one positioning unit which is provided to stop and/or retain at least one output spindle of the machine tool and/or an insert tool arranged on the output spindle of the machine tool in at least one defined position. The positioning unit is provided for stopping and/or retaining the output spindle and/or the insert tool arranged on the output spindle in at least one defined position in an automatic manner, in particular without a user intervention, in particular starting from a working movement of the output spindle and/or of the insert tool arranged on the output spindle.
    Type: Application
    Filed: February 18, 2019
    Publication date: February 4, 2021
    Inventors: Aldo Di Nicolantonio, Stefano Delfini, Bruno Sinzig, Massimo Tolazzi, Florian Esenwein
  • 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: 20200230776
    Abstract: A grinding-means device, in particular a grinding-disc device or backup-pad device, for arranging at least one grinding means, in particular at least one grinding wheel, on a portable power tool, in particular a grinding machine, includes at least one receiving unit, in particular a grinding disc or backup pad, which is fixable in a thread-free manner on an output unit of the tool and on which at least one grinding means is arranged. The grinding-means device includes at least one securing unit formed separately from the receiving unit and configured to axially fix the receiving unit and/or the grinding means to the output unit of the tool in a tool-free manner, and/or at least to axially fix the grinding means to the receiving unit in a tool-free manner.
    Type: Application
    Filed: March 13, 2018
    Publication date: July 23, 2020
    Inventors: Bruno SINZIG, Stefan CHRISTEN, Michael LAETT, Laurent QUEBATTE, David WINISTOERFER
  • 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: 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: 20190202027
    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: August 10, 2017
    Publication date: July 4, 2019
    Inventors: Willi Fellmann, Bruno Luescher, Aldo Di Nicolantonio, Andreas Zurbruegg, Bruno Sinzig, Laurent Quebatte, Marcus Schuller
  • Publication number: 20190193235
    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: Application
    Filed: August 18, 2017
    Publication date: June 27, 2019
    Inventors: Bruno Luescher, Andreas Zurbruegg, Bruno Sinzig, Marcus Schuller
  • Publication number: 20190184595
    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: August 10, 2017
    Publication date: June 20, 2019
    Inventors: Willi Fellmann, Bruno Luescher, Andreas Zurbruegg, Aldo Di Nicolantonio, Bruno Sinzig, Laurent Quebatte, Marcus Schuller
  • Patent number: 10005199
    Abstract: A cut-length indicating device for a portable power tool comprises at least one indicating unit including at least one movably mounted indicating element configured to indicate at least one position of a cut edge of a machining tool in dependence on a set cut depth of the machining tool, and at least one position setting unit configured to move the indicating element into a position that is dependent on a cut-depth setting of the machining tool. The cut-length indicating device further comprises at least one adjusting unit configured to adapt at least one maximum setting movement distance of the indicating element to at least one machining-tool parameter of the machining tool.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: June 26, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Bruno Sinzig, Sergio Miracco, Christian Bermes
  • Patent number: 9925684
    Abstract: A cut length indicating device for a portable machine tool includes at least one indication unit. The indication unit has at least one movably mounted indication element that is configured to indicate at least one position of a cutting edge of a machining tool on a work piece to be machined with reference to a set cutting depth of the machining tool. The indication element further has a cutting edge indication line, which runs at least substantially transversely to a movement plane of the indication element in order to indicate the position of the cutting edge in at least one operating state.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: March 27, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Bruno Sinzig, Christian Bermes, Andreas Arn
  • Patent number: 9908256
    Abstract: A cutting-depth limiting device for portable power tools includes at least one cutting-depth guide unit and at least one stop unit. The stop unit has at least one movably mounted stop element, and at least one fixing element configured to fix the stop element in at least one position. The stop unit further has at least one pre-positioning element which is configured to exert a force on the fixing element in a direction of a releasing position of the fixing element.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: March 6, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Bruno Sinzig, Christian Ackermann, Laurent Gribi
  • Patent number: 9623583
    Abstract: A device for limiting the depth of a cut, which is to be used in portable machine tools, includes at least one cut-depth guide unit, and at least one stop unit that has at least one stop element. The stop element has, for the purpose of limiting the depth of a cut, a movement potential relative to the cut-depth guide unit along a cut-depth guide track of the cut-depth guide unit. The cut-depth limiting device further includes at least one stop movement unit which is configured to allow the stop element a further movement potential relative to the cut-depth guide unit, at least one of along and about an axis of movement, at least when in a state of operation.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: April 18, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Bruno Sinzig, Laurent Gribi
  • Publication number: 20160151930
    Abstract: A cut-length indicating device for a portable power tool comprises at least one indicating unit including at least one movably mounted indicating element configured to indicate at least one position of a cut edge of a machining tool in dependence on a set cut depth of the machining tool, and at least one position setting unit configured to move the indicating element into a position that is dependent on a cut-depth setting of the machining tool. The cut-length indicating device further comprises at least one adjusting unit configured to adapt at least one maximum setting movement distance of the indicating element to at least one machining-tool parameter of the machining tool.
    Type: Application
    Filed: November 30, 2015
    Publication date: June 2, 2016
    Inventors: Bruno Sinzig, Sergio Miracco, Christian Bermes
  • Publication number: 20150165637
    Abstract: A cut length indicating device for a portable machine tool includes at least one indication unit. The indication unit has at least one movably mounted indication element that is configured to indicate at least one position of a cutting edge of a machining tool on a work piece to be machined with reference to a set cutting depth of the machining tool. The indication element further has a cutting edge indication line, which runs at least substantially transversely to a movement plane of the indication element in order to indicate the position of the cutting edge in at least one operating state.
    Type: Application
    Filed: June 14, 2013
    Publication date: June 18, 2015
    Inventors: Bruno Sinzig, Christian Bermes, Andreas Arn