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公开(公告)号：US20240246202A1
公开(公告)日：2024-07-25
申请号：US18412544
申请日：2024-01-14
申请人： Robert Bosch GmbH
发明人： Jasmin Giessler , Christoph Steurer , Marcus Schuller , Stefan Mock , Simon Erbele , Wolfgang Herberger
摘要： 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.
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公开(公告)号：US11980947B2
公开(公告)日：2024-05-14
申请号：US16326746
申请日：2017-08-10
申请人： Robert Bosch GmbH
发明人： Willi Fellmann , Bruno Luescher , Aldo Di Nicolantonio , Andreas Zurbruegg , Bruno Sinzig , Laurent Quebatte , Marcus Schuller
CPC分类号： B23B31/10 , B23D61/10 , B24B45/006 , B27B5/32 , B24B23/028
摘要： 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.
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公开(公告)号：US11717935B2
公开(公告)日：2023-08-08
申请号：US16620816
申请日：2018-07-05
申请人： Robert Bosch GmbH
CPC分类号： B24B45/006 , B24B23/028
摘要： 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.
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公开(公告)号：US20210221021A1
公开(公告)日：2021-07-22
申请号：US17173768
申请日：2021-02-11
申请人： Robert Bosch GmbH
发明人： Willi Fellmann , Bruno Luescher , Andreas Zurbruegg , Aldo Di Nicolantonio , Bruno Sinzig , Laurent Quebatte , Marcus Schuller
摘要： 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.
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5.发明授权公开(公告)号：US10828742B2
公开(公告)日：2020-11-10
申请号：US16324470
申请日：2017-08-18
申请人： Robert Bosch GmbH
摘要： 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.
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公开(公告)号：US20200094373A1
公开(公告)日：2020-03-26
申请号：US16620816
申请日：2018-07-05
申请人： Robert Bosch GmbH
摘要： 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.
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公开(公告)号：US20190262970A1
公开(公告)日：2019-08-29
申请号：US16341432
申请日：2017-10-04
申请人： Robert Bosch GmbH
摘要： 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.
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公开(公告)号：US20240351172A1
公开(公告)日：2024-10-24
申请号：US18721831
申请日：2022-12-09
申请人： Robert Bosch GmbH
发明人： Marcus Schuller , Rainer Britz , Simon Erbele
CPC分类号： B25B21/023 , B25F5/001
摘要： 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.
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公开(公告)号：US12109666B2
公开(公告)日：2024-10-08
申请号：US16631825
申请日：2018-07-31
申请人： Robert Bosch GmbH
CPC分类号： B24B45/006 , B24B23/022
摘要： 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.
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公开(公告)号：US11052564B2
公开(公告)日：2021-07-06
申请号：US16326109
申请日：2017-08-10
申请人： Robert Bosch GmbH
发明人： Willi Fellmann , Bruno Luescher , Andreas Zurbruegg , Aldo Di Nicolantonio , Bruno Sinzig , Laurent Quebatte , Marcus Schuller
摘要： 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.
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