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公开(公告)号：US20240261999A1
公开(公告)日：2024-08-08
申请号：US18614021
申请日：2024-03-22
Applicant: Robert Bosch GmbH
Inventor： Willi Fellmann , Bruno Luescher , Andreas Zurbruegg , Aldo Di Nicolantonio , Bruno Sinzig , Laurent Quebatte , Marcus Schuller
CPC classification number: B27B5/32 , B23B51/0473 , B23D61/025 , B24B45/00 , B24B45/006 , B24D5/16
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.
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公开(公告)号：US11980955B2
公开(公告)日：2024-05-14
申请号：US17919612
申请日：2021-06-23
Applicant: Festool GmbH
Inventor： Johannes Rau , Tobias Hoefer
CPC classification number: B23D47/12 , B23D47/02 , B23D59/003 , B27B5/30 , B27B5/32 , B27B9/02 , B27B9/04 , B27G19/04
Abstract: Circular saws with lock assemblies are disclosed herein. The circular saws include a motor including a motor shaft configured to rotate about a shaft rotational axis. The circular saws also include an arbor configured to operatively attach a circular saw blade to the circular saw. The circular saws further include a switch configured to selectively apply an electric current to the motor and a switch lever configured to be selectively actuated, by a user of the circular saw and via an actuation force, to actuate the switch and direct the switch to apply the electric current to the motor. The lock assemblies include a switch lock, which defines a switch-locked configuration, in which the switch lock resists actuation of the switch lever by the user, and a switch-unlocked configuration, in which the switch lever is free to be actuated by the user.
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公开(公告)号：US11969911B2
公开(公告)日：2024-04-30
申请号：US17173768
申请日：2021-02-11
Applicant: Robert Bosch GmbH
Inventor： Willi Fellmann , Bruno Luescher , Andreas Zurbruegg , Aldo Di Nicolantonio , Bruno Sinzig , Laurent Quebatte , Marcus Schuller
CPC classification number: B27B5/32 , B23B51/0473 , B23D61/025 , B24B45/00 , B24B45/006 , B24D5/16
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.
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4.发明公开公开(公告)号：US20230166424A1
公开(公告)日：2023-06-01
申请号：US17919568
申请日：2021-06-23
Applicant: Festool GmbH
Inventor： Martin Werbach , Tobias Hoefer
IPC: B27B5/32
CPC classification number: B27B5/32
Abstract: Circular saws that include blade mounts for circular saw blades and methods of attaching circular saw blades to circular saws are disclosed herein. The circular saws include a motor, an arbor, and a blade mount. The motor includes a motor shaft configured to rotate about a shaft rotational axis. The arbor is configured to receive a torque from the motor when the motor shaft rotates about the shaft rotational axis. The blade mount is operatively attached to the arbor and is configured to selectively and operatively attach a circular saw blade to the arbor. The blade mount includes an inner flange that includes an inner flange blade-contacting surface that faces away from the motor. The inner flange is free from any structure that projects away from the motor and also away from the inner flange blade-contacting surface.
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公开(公告)号：US11590584B2
公开(公告)日：2023-02-28
申请号：US17073843
申请日：2020-10-19
Applicant: C. & E. FEIN GMBH , ROBERT BOSCH GMBH
Inventor： Olaf Klabunde , Juergen Blickle , Walter Thomaschewski , Fabian Bek , Stefano Delfini , Willi Fellmann , Bruno Luescher , Milan Bozic , Thomas Mathys , Daniel Grolimund
Abstract: The invention relates to a tool device which is suitable for use with a machine tool, in particular a hand guided machine tool, having a driving device moving, in particular in an oscillating manner, around a driving axis. The tool device has an attachment device which allows it to be fastened on a machine tool such that its driving axis and an axis of rotation of the tool substantially coincide. The attachment device, for absorbing the driving force, has at least two driving area regions, which are spaced apart from said tool axis of rotation and each has a plurality of surface points. The tangent planes to said surface-area points are inclined in regard to an axial plane, which encloses the tool axis of rotation. Furthermore, said tangent planes are inclined regard to a radial plane which extends perpendicularly to the tool axis of rotation. This means that the torque introduced into the tool device by the machine tool, via the driving device, is reliably absorbed.
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Patent Agency Ranking
公开(公告)号：US11491604B2
公开(公告)日：2022-11-08
申请号：US17135428
申请日：2020-12-28
Applicant: MAKITA CORPORATION
Inventor： Yonosuke Aoki
Abstract: A work tool includes a spindle and a clamp shaft. The spindle is supported to be rotatable around a driving axis defining an up-down direction of the work tool. The clamp shaft includes a shaft part and a fixing part. The shaft part extends coaxially with the spindle. The fixing part is coupled to the shaft part on a lower side of the spindle. The clamp shaft is supported to be movable in the up-down direction relative to the spindle. The clamp shaft is configured to be biased upward and to fix the tool accessory to a lower end portion of the spindle by the fixing par. The fixing part is configured to be removable from the shaft part and to be integrally coupled to the shaft part only by moving upward relative to the shaft part.
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公开(公告)号：US20210354258A1
公开(公告)日：2021-11-18
申请号：US17296585
申请日：2019-11-29
Applicant: GMM S.p.A.
Inventor： Simone Guazzoni , Maurizio Gnappa , Riccardo Medina
Abstract: A tool-holder unit for machining block or slab materials is moveable above a working plane on which the block or slab material is laid. The tool-holder unit includes a spindle with a circular blade and a coupling assembly that couples a second machining tool with the spindle. The tool-unit further includes a tool-holder; a mechanical coupling device configured to rotationally integrate the tool-holder and the spindle; a first axial locking element configured to removably lock the tool-holder on the spindle; a substantially cylindrical shank extending from the tool-holder; a substantially cylindrical housing seat axially positioned in the spindle or a tool-holder coupling element; and a second axial locking element configured to removably lock the tool-holder in the spindle, the axial locking element being configured to removably lock the shank in the respective housing seat.
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公开(公告)号：US11014260B2
公开(公告)日：2021-05-25
申请号：US16423401
申请日：2019-05-28
Applicant: Robert Bosch GmbH , Bosch Limited
Inventor： Dhananjay Raghunath Zinge
Abstract: A holder assembly for a circular saw tool includes a blade having a bore. The blade is mountable to a free end of a rotatable shaft or of the tool through the bore. The blade is further adapted to be held in a pressing manner between an inner flange and an outer flange on the shaft. The holder assembly is comprised of at least one depression formed on a circumferential surface of the free end of the shaft, and at least one clutch member (or dogs) paired and mounted about the at least one depression, and located between the bore of the blade and the shaft. The holder assembly provides improved gripping while safety or emergency braking.
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公开(公告)号：US10856885B2
公开(公告)日：2020-12-08
申请号：US16252889
申请日：2019-01-21
Applicant: Medtronic PS Medical, Inc.
Inventor： Christopher M. Boykin , Durrell Tidwell
Abstract: A blade coupling mechanism for a hand-held surgical cutting instrument includes a first coupling member including a first blade-contacting surface and a first outer perimeter sidewall adjacent the first blade contacting surface. It also includes a second coupling member including a second blade-contacting surface facing the first blade-contacting surface of the first coupling member. The second coupling member includes a second outer perimeter sidewall adjacent the second blade contacting surface. The second blade-contacting surface and the second outer perimeter sidewall meet to define an outer edge. The second coupling member including a bore through the second blade contacting surface. The bore and the second blade contacting surface meeting to define an inner edge. Blade-engaging protrusions project from at least one of the first and second blade-contacting surfaces. The protrusions are spaced closer to the outer edge than the inner edge.
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公开(公告)号：US10589439B2
公开(公告)日：2020-03-17
申请号：US15187851
申请日：2016-06-21
Applicant: GLOBE FOOD EQUIPMENT COMPANY
Inventor： Douglas J. McGuffin-Noll , Peter Dierauer
Abstract: A blade mounting and removal tool, and system, for safely removing a blade from a blade axle of a food product slicer. The blade axle includes a multi-axis locking system for securing the blade to the blade axle. The blade removal tool includes a tool base, a blade engagement assembly, and a blade unlocking assembly. The blade engagement assembly is attached to the tool base and has a blade engagement actuator cooperating with at least one blade engagement retainer. The blade unlocking assembly is also attached to the tool base and has a blade unlocking actuator cooperating with a blade unlocking post.
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