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公开(公告)号：US11590593B2
公开(公告)日：2023-02-28
申请号：US16953796
申请日：2020-11-20
申请人： MAKITA CORPORATION
发明人： Yonosuke Aoki
摘要： A power tool includes a spindle, a motor, an inner housing and an outer housing elastically connected to the inner housing. The inner housing is formed by a first inner housing portion formed of metal connected to a second inner housing portion formed of synthetic polymer. The first inner housing portion includes a housing part disposed in a front part of the outer housing, and a first extending part extending rearward from the housing part and disposed in a grip part of the outer housing. The second inner housing portion includes a second extending part that has a tubular shape and at least partially surrounds the first extending part, and a rear end part connected to the second extending part and disposed in a rear part of the outer housing. The first extending part extends rearward of a center of the second extending part in the front-rear direction.
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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
发明人： Olaf Klabunde , Juergen Blickle , Walter Thomaschewski , Fabian Bek , Stefano Delfini , Willi Fellmann , Bruno Luescher , Milan Bozic , Thomas Mathys , Daniel Grolimund
摘要： 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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公开(公告)号：US20230049759A1
公开(公告)日：2023-02-16
申请号：US17960456
申请日：2022-10-05
发明人： Scott S. McLain , Mark Snyker
摘要： An adjustable stroke mechanism has a housing with a central axis and a wall enclosing a cavity. At least one counterweight is movably disposed within the cavity. A mounting assembly is disposed within the cavity. The mounting assembly has a workpiece attachment mechanism. A stroke adjustor couples the at least one counterweight with the mounting assembly. The stroke adjustor enables the counterweight and mounting assembly to move with respect to one another such that a distance between the counterweight and the mounting assembly is variably adjusted which, in turn, variably adjusts a stroke radius of the workpiece attachment mechanism with respect to the central axis of the housing.
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公开(公告)号：US20220305634A1
公开(公告)日：2022-09-29
申请号：US17674243
申请日：2022-02-17
申请人： MAKITA CORPORATION
发明人： Tomoki TAKATA , Takuji KIMURA , Atsushi KANOU
摘要： A portable power tool comprises a tool accessory, a drive mechanism, a housing and a grip having a rotating axis. The grip comprises grip portion having a first face and a second face. The grip portion is formed in a rotation asymmetric shape to the rotating axis. The grip is attachable to the housing with respect to a rotating angle around the rotating axis at a first angle and a second angle. When the grip is viewed in the rotating axis extending direction, the position of the first surface and the position of the second surface in the circumferential direction around the rotating axis in a case that the rotating angle is at the first angle are different from the position of the first surface and the position of the second surface in the circumferential direction around the rotating axis in a case that the rotating angle is at the second angle.
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公开(公告)号：US11364545B2
公开(公告)日：2022-06-21
申请号：US17122500
申请日：2020-12-15
申请人： MAKITA CORPORATION
发明人： Yonosuke Aoki
IPC分类号： B23B31/10 , B27B5/30 , B27B19/00 , B24B45/00 , B23B31/18 , B23B31/103 , B24B23/04 , B23D61/00
摘要： A power tool includes a housing (10), a spindle (4) supported in the housing to be pivotable or rotatable about a driving axis, a clamping shaft (60) that is selectively movable in the up-down direction relative to the spindle, a biasing member (70), a release member (71) and an actuating member (50). The release member is selectively movable in the up-down direction relative to the spindle and is configured to selectively interrupt transmission of upward biasing force from the biasing member to the clamping shaft. The release member is also configured to be locked to the spindle in a locked position while transmission of the biasing force is being interrupted. The actuating member is movable upward in the up-down direction relative to the spindle in response to being pressed upward by a clamping part (64) or by a tool accessory (91) to thereby unlock the release member from the spindle.
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公开(公告)号：US20220126417A1
公开(公告)日：2022-04-28
申请号：US17428141
申请日：2020-01-31
申请人： Festool GmbH
发明人： Harald Ruhland
摘要： A machine tool having a drivetrain, which includes a tool shaft rotatably mounted on a drive support by means of a bearing assembly and a tool holder arranged on the tool shaft, wherein the tool shaft is rotationally drivable by a drive motor of the machine tool around a rotational axis, and wherein a balancing device is arranged on the tool shaft, which includes a guide body having at least one orbital path extending around the rotational axis and at least one balancing body movably mounted in the orbital path.
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公开(公告)号：US20220016738A1
公开(公告)日：2022-01-20
申请号：US17374305
申请日：2021-07-13
申请人： MAKITA CORPORATION
发明人： Chitphong KUNTHEEYA
IPC分类号： B24B23/03 , B24B47/10 , B24B23/04 , B24B41/047
摘要： A portable power tool includes an electric motor having a motor shaft, an output shaft arranged in parallel to the motor shaft and configured to be driven by rotation of the motor shaft, a tool accessory operably connected to the output shaft and configured to undergo an orbital and/or rotational motion in response to rotation of the output shaft, a first bearing that rotatably supports the output shaft, and a second bearing that rotatably supports the output shaft and is arranged closer to the tool accessory than the first bearing in an axial direction in which the output shaft extends. The first and second bearings are arranged at positions that do not overlap with a radially outermost one of components of the electric motor when viewed in a shaft arrangement direction in which the motor shaft and the output shaft are arranged in parallel.
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公开(公告)号：US20210086276A1
公开(公告)日：2021-03-25
申请号：US17112530
申请日：2020-12-04
摘要： A power tool includes: a power assembly including a motor, the motor including a motor shaft rotatable about a motor axis; an output assembly including an output shaft; a transmission assembly; a first housing; a second housing; wherein the power tool is provided with a first vibration isolation plane and a second vibration isolation plane; the first vibration isolation plane is provided with a first vibration isolation block, and the second vibration isolation plane is provided with a second vibration isolation block; the whole composed of the first vibration isolation block and the second vibration isolation block is at least provided with a spacing portion between the first housing and the second housing; the second housing is spaced apart from the first housing at the spacing portion; the first vibration isolation block and the second vibration isolation block are separated from each other.
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公开(公告)号：US10883579B2
公开(公告)日：2021-01-05
申请号：US15103989
申请日：2014-12-04
申请人： Robert Bosch GmbH
摘要： An oscillating power tool includes a drive motor (M) producing rotary motion and an oscillating mechanism (30) for converting the motor rotary motion to an oscillatory side-to-side movement. The oscillating mechanism (30) includes a link (32) driven by an eccentric shaft (16) of the motor (M), a drive arm (40) that drives the hub (45) of the working tool (B) in oscillating motion, and a bearing arrangement (37) between the drive arm (40) and the link (32) that isolates relative rotation and translation between the components while still imparting an oscillatory motion to the drive arm (40).
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公开(公告)号：US10882176B2
公开(公告)日：2021-01-05
申请号：US13818411
申请日：2011-07-27
申请人： Rudolf Fuchs
发明人： Rudolf Fuchs
摘要： The disclosure relates to a hand-held machine tool, comprising a housing and a drive unit, a gearbox unit which is provided to convert a rotary motion of the drive unit into an oscillating motion and has an output shaft, and a tool holder for fastening at least one tool, said tool holder being drivable in an oscillating manner via the output shaft the gearbox unit. According to the disclosure, the hand-held machine tool comprises a clamping collar, which extends in a circumferential direction at least partially around the output shaft.
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