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公开(公告)号：US20240227045A9
公开(公告)日：2024-07-11
申请号：US18546835
申请日：2022-02-18
Applicant: Festool GmbH
Inventor： Maximilian Markus Schlögel , Markus Schmid , Markus Wildermuth , Josua Frank , Dominik Hilpert
CPC classification number: B23D59/005 , B27G19/04
Abstract: Circular saws having a blade that moves relative to a stationary base structure during operative use of the circular saws to cut a workpiece and methods of detecting a kickback condition of such circular saws. The circular saws include a base structure, a user-actuated assembly, an attachment structure, and a controller. The attachment structure is configured to permit constrained relative motion between the base structure and the user-actuated assembly in a motion direction and during operative use of the circular saw to cut the workpiece. A motion sensor is configured to generate a motion signal indicative of motion of the user-actuated assembly along the motion direction. The controller is programmed to initiate a kickback response of the circular saw responsive to the motion signal being indicative of a kickback condition of the circular saw.
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公开(公告)号：US11534902B2
公开(公告)日：2022-12-27
申请号：US16632988
申请日：2017-07-24
Applicant: FESTOOL GMBH
Inventor： Markus Schmid , Marc Rusch , Uwe Werner , Remo Sommer , Tom Staubli , Jorg Evertz , Luca Lortscher , Miriam Nietlispach
Abstract: A handheld power tool with a rotatable tool, in which the handheld power tool is a saw blade or milling cutter. The handheld power tool includes a sensor device for detecting a mechanical vector quantity. The mechanical vector quantity includes a force, an acceleration, a velocity, a deflection, a deformation and/or a mechanical stress and the mechanical vector quantity depends on a force emanating from the handheld tool. The handheld power tool also includes a control device which is communicatively coupled to the sensor device and is adapted to recognize an event and/or a state of the power tool according to a direction and/or change of direction of the mechanical vector quantity detected by the sensor device.
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公开(公告)号：US20220234240A1
公开(公告)日：2022-07-28
申请号：US17617761
申请日：2020-04-27
Applicant: Festool GmbH
Inventor： Julian Schneck , Christian Schock , Markus Schmid
IPC: B27B5/38
Abstract: The invention relates to a tool device (10), comprising a shaft (2) and a braking device (12) with at least one brake body (3), in particular in the form of a brake disc, and a brake section (14), wherein the tool device (10) is adapted to, in the course of a braking operation, put the braking device (12) from a release state via a feed state into a braking state, provide, in the release state, a rotationally fixed coupling between the at least one brake body (3) and the shaft (2), so that the at least one brake body (3) rotates with the shaft (2) in the release state, provide, in the feed state, a relative rotational movement between the at least one brake body (3) and the shaft (2) and convert the relative rotational movement into an axial movement (31) of the at least one brake body (3) towards the brake section (14), and exert, in the braking state, a braking force on the shaft (2) by a contact of the at least one brake body (3) with the brake section (14), so that the shaft (2) is braked.
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公开(公告)号：US20190334302A1
公开(公告)日：2019-10-31
申请号：US16344702
申请日：2017-10-18
Applicant: Festool GmbH
Inventor： Peter Maier , Markus Schmid
Abstract: A connection apparatus for electrically connecting a stored energy source to an electrical device having an electric drive motor, wherein the connection apparatus is part of the stored energy source or of the electrical device and can be connected to a connection apparatus of the electrical device or of the stored energy source, wherein the connection apparatuses have plug contours and counter plug contours, by means of which the stored energy source is interlockingly fastened to the electrical device in a fastening position, in which at least two electrical connections between the electrical device and the stored energy source having different potential, are each established by means of a pair of base contact elements and base counter contact elements of the connection apparatuses, said contact elements being in contact with each other, for the supply of electrical energy to the electrical device by the stored energy source.
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公开(公告)号：US12090562B2
公开(公告)日：2024-09-17
申请号：US17487749
申请日：2021-09-28
Applicant: FESTOOL GMBH
Inventor： Markus Schmid , Marc Rusch
CPC classification number: B23D59/001 , B23D45/16 , B27G19/04
Abstract: A power tool with a rotatable tool designed as a saw blade or a milling cutter, including a sensor device for detecting a mechanical quantity, the mechanical quantity having a force, an acceleration, a velocity, a deflection, a deformation and/or a mechanical stress, and the mechanical quantity being dependent on a force emanating from the tool, and a control device communicatively coupled to the sensor device, which control device is adapted to recognize a kickback event based on the detected mechanical quantity, where the control device is adapted to selectively determine a first recognition function or a second recognition function different from the first recognition function based on a function determination information, and to perform the recognition of the kickback event based on the detected mechanical quantity using the determined recognition function.
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Patent Agency Ranking
公开(公告)号：US11697200B2
公开(公告)日：2023-07-11
申请号：US16633200
申请日：2018-06-28
Applicant: FESTOOL GMBH
Inventor： Marc Rusch , Markus Schmid
Abstract: A power tool, including a support structure, a pivot bearing arranged on the support structure, a shaft mounted on the support structure via the pivot bearing, a rotatable tool coupled to the shaft, in particular a saw blade, milling cutter or grinding wheel, a strain gauge arrangement for detecting a mechanical quantity which depends on a force emanating from the tool, and a control device which is adapted to recognize an event and/or a state of the power tool according to the detected mechanical quantity. The strain gauge arrangement is arranged on a stationary structure section coupled in a force-transmitting manner to the pivot bearing and is not arranged on the pivot bearing.
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公开(公告)号：US12128514B2
公开(公告)日：2024-10-29
申请号：US17604053
申请日：2020-03-09
Applicant: Festool GmbH
Inventor： Markus Schmid , Christian Schock
CPC classification number: B23Q11/0092 , F16D49/20 , F16D65/06 , B27B5/38
Abstract: The invention relates to a tool apparatus (10) with a drivable tool (1), comprising a shaft (2) which is coupled to the tool (1), further comprising one or plural braking bodies (3) which in particular are arranged distributed around the shaft (2) in the circumferential direction, wherein the tool apparatus (10) is adapted to bring the one or plural braking bodies (3) from a release state into a braking state in the course of a braking procedure, wherein in the braking state the one or the plural braking bodies (3) are in contact with the shaft and thereby exert a braking force upon the shaft (2), so that the shaft (2) and thereby also the tool (1) are braked and wherein in the release state the one or the plural braking bodies (3) are not in contact with the shaft (2).
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公开(公告)号：US20240131605A1
公开(公告)日：2024-04-25
申请号：US18546835
申请日：2022-02-18
Applicant: Festool GmbH
Inventor： Maximilian Markus Schlögel , Markus Schmid , Markus Wildermuth , Josua Frank , Dominik Hilpert
CPC classification number: B23D59/005 , B27G19/04
Abstract: Circular saws having a blade that moves relative to a stationary base structure during operative use of the circular saws to cut a workpiece and methods of detecting a kickback condition of such circular saws. The circular saws include a base structure, a user-actuated assembly, an attachment structure, and a controller. The attachment structure is configured to permit constrained relative motion between the base structure and the user-actuated assembly in a motion direction and during operative use of the circular saw to cut the workpiece. A motion sensor is configured to generate a motion signal indicative of motion of the user-actuated assembly along the motion direction. The controller is programmed to initiate a kickback response of the circular saw responsive to the motion signal being indicative of a kickback condition of the circular saw.
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公开(公告)号：US11491564B2
公开(公告)日：2022-11-08
申请号：US16632991
申请日：2017-07-24
Applicant: FESTOOL GMBH
Inventor： Markus Schmid , Marc Rusch
Abstract: A power tool with a rotatable tool designed as a saw blade or a milling cutter. The power tool includes a sensor device for detecting a mechanical quantity, the mechanical quantity including a force, an acceleration, a velocity, a deflection, a deformation and/or a mechanical stress. The mechanical quantity is dependent on a force emanating from the tool, and a control device communicatively coupled to the sensor device. The control device is adapted to recognize a kickback event based on the detected mechanical quantity, in which the control device is adapted to selectively determine a first recognition function or a second recognition function different from the first recognition function based on a function determination information, and to perform the recognition of the kickback event based on the detected mechanical quantity using the determined recognition function.
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10.发明公开公开(公告)号：US20240123650A1
公开(公告)日：2024-04-18
申请号：US18546899
申请日：2022-02-18
Applicant: Festool GmbH
Inventor： Dominik Hilpert , Markus Schmid , Harald Ruhland , Stefan Staib , Christian Schock , Markus Wildermuth , Matthias Kübeler
CPC classification number: B27G19/04 , B23D59/005
Abstract: Handheld power tools with kickback detection and methods of detecting a kickback condition of a handheld power tool are disclosed herein. The methods include moving an implement of the handheld power tool within an implement motion plane and in detecting motion of the handheld power tool. The methods also include determining that the kickback condition exists based, at least in part, on the motion of the handheld power tool. In some embodiments, the handheld power tool is a circular saw that includes a user-actuated assembly. The user-actuated assembly includes a motion sensor, a controller, and a motor. The circular saw also includes a workpiece support and a pivot. The motion sensor is configured to detect acceleration along an acceleration detection axis that extends a threshold pivot axis-acceleration axis distance of at most 4 cm from a pivot axis of the pivot.
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