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公开(公告)号：US11478892B2
公开(公告)日：2022-10-25
申请号：US16833853
申请日：2020-03-30
申请人： black & Decker Inc.
摘要： A power tool includes a housing. A motor is housed in the housing. A platen is driven by the motor. The housing includes a first housing part, a second housing part and a third housing part. The housing defines a battery receptacle portion configured to receive a removable battery pack which powers the motor. Each of the first housing part, the second housing part and the third housing part form part of the battery receptacle portion.
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公开(公告)号：US20220266422A1
公开(公告)日：2022-08-25
申请号：US17627362
申请日：2020-06-24
发明人： Ronald Naderer , Jakob Schinnerl
摘要： A device for automatically removing a grinding wheel from a grinding machine mounted on a manipulator is described. According to one embodiment, the device has the following: a support plate with a surface for depositing a grinding wheel; a movable clamping element that is raised in a first position with respect to the support plate; an actuator that is coupled to the clamping element and is configured to move the clamping element into a second position in which the clamping element is pressed against the support plate such that the grinding wheel is clamped between the support plate and clamping element; and a release element that is arranged in such a way relative to the support plate that the release element is actuated when the grinding wheel is placed on the surface of the support plate and is pressed against the latter. The release element and the actuator are coupled (directly or indirectly, electrically or mechanically) such that, when the release element is actuated, the actuator moves the clamping element from the first position into the second position.
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公开(公告)号：US20220250209A1
公开(公告)日：2022-08-11
申请号：US17629170
申请日：2020-07-15
申请人： Robert Bosch GmbH
发明人： Roberto Mulone
摘要： A grinding tool, in particular a diamond cup wheel, includes at least one main body, which has at least one connection region and at least one contact region, the contact region at least substantially completely surrounding the connection region when viewed in at least one main extension plane of the main body. The grinding tool further includes a plurality of grinding elements, which are arranged on the main body. The main body delimits a plurality of suction openings which, when viewed along a circumferential direction of the main body, are each arranged between at least two grinding elements of the plurality of grinding elements.
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104.发明申请公开(公告)号：US20220203499A1
公开(公告)日：2022-06-30
申请号：US17435302
申请日：2020-02-25
发明人： Lionel BARBIER , Matthias MAZUR , Paul FALLY
摘要： A dust hood extension device for use with a dust hood of a grinder includes a supporting device where the supporting device is configured to surround the dust hood and an opening defined by the dust hood extension device. The opening is arranged eccentrically with respect to a central axis of a drive shaft of the grinder in a fastened condition of the dust hood extension device on the dust hood of the grinder.
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公开(公告)号：US11185808B2
公开(公告)日：2021-11-30
申请号：US16643743
申请日：2018-09-05
申请人： HUSQVARNA AB
发明人： Daniel Gustavsson
摘要： The present document discloses a method of operating a separator (1) for separating particles from a particle-laden airflow, wherein the separator comprises a flow path (F), a separation unit (11, 12, 13), arranged in the flow path (F), an impeller (14), arranged in the flow path (F), and an electric motor (15), configured to drive the impeller (14) so as to generate the airflow in the flow path (F). The method comprises initiating a power supply to the electric motor (15), measuring a pressure in the flow path using a pressure sensor (16a, 16b, 16c, 16d), determining a direction of the airflow based on the pressure, and if the direction of the airflow does not correspond to a desired direction of the airflow, then changing a phase sequence of the power supply to the electric motor (15). The document further discloses a separator (1) and a system comprising a separator (1) and a floor grinding machine (2).
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公开(公告)号：US11179825B2
公开(公告)日：2021-11-23
申请号：US16172051
申请日：2018-10-26
申请人： WOLFF GmbH & Co. KG
发明人： Frank Wehrmann
IPC分类号： B24B55/10 , B24B55/05 , B24B7/18 , B24B23/02 , A47L11/164 , A47L11/206
摘要： The present invention relates to a floor grinding apparatus (100) with a housing (110) having an interior space (111) open to one side, a carrier plate (120) rotatably mounted in the interior space (111) for receiving abrasives, and drive unit (130) adapted to rotate the carrier plate (120), the housing (110) having an inner dust sealing ring (112) with at least one recess (115), wherein the inner dust sealing ring (112) divides the interior space (111) into an inner portion (113) and an outer portion (114), and wherein the carrier plate (120) is disposed in the inner portion (114), at least one extraction opening (116) disposed in the outer portion (114), and an outer dust sealing ring (117) enclosing the interior space (111), the inner dust sealing ring (112) and the outer dust sealing ring (117) being arranged to define a common working plane parallel to the plane of rotation of the carrier plate (120).
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公开(公告)号：US20210276154A1
公开(公告)日：2021-09-09
申请号：US16321186
申请日：2017-07-21
申请人： TTS MICROCELL GMBH
发明人： Frank Siebert , Guido Portner
摘要： A surface processing device, in particular a manual grinding device, with a processing body which has at least one processing surface for grinding or polishing a workpiece surface, wherein the processing body has a flat surface portion with a flat processing surface for processing flat workpiece surfaces and at least one curved section with a curved processing surface for processing curved workpiece surfaces. The curvature section of the processing device, extends over a side of the processing body opposite to the plane surface portion, wherein the curvature portion has a plurality of continuously merging curvature sections with mutually different radii of curvature and does not project in front of the flat processing surface of the flat surface portion.
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公开(公告)号：US20210122000A1
公开(公告)日：2021-04-29
申请号：US17075818
申请日：2020-10-21
申请人： Black & Decker Inc.
发明人： Manfred DROSTE , Benjamin SCHRAMM
摘要： A pole sander is provided including an elongate body having a longitudinal axis, and a sanding head attached via a pivot mechanism to a first end of the elongate body. The sanding head includes a hood including a plate and a sidewall to form a chamber, an output spindle projecting through the hood into the chamber, and an electric motor mounted on the hood and configured to rotatably drive the output spindle about a rotational axis. The pivot mechanism allows the sanding head to pivot around a pivot axis that intersects the sanding head forward of at least one of a centre of gravity of the sanding head or the rotational axis of the output spindle relative to the elongate body when the longitudinal axis of the elongate body is located parallel to the plane of the plate.
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公开(公告)号：US20210121999A1
公开(公告)日：2021-04-29
申请号：US17075803
申请日：2020-10-21
申请人： Black & Decker Inc.
发明人： Manfred DROSTE , Benjamin SCHRAMM
摘要： A pole sander is provided including an elongate body including a passageway for passage of air, an electric motor, and a sanding head attached via a pivot mechanism to a first end of the elongate body. The sanding head includes a hood including a plate and a sidewall to form a chamber, an output spindle projecting from the hood and rotatably driven by the electric motor, and a tubular passage including a first end forming an opening and a second end coupled to an aperture formed through the plate. A flexible pipe is disposed between the passageway at the first end of the elongate body and the opening of the tubular passage to fluidly connect the passageway to the chamber. The tubular passage is oriented at least partially around a portion of the output spindle in a turning direction of the output spindle and extending angularly from the plate.
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公开(公告)号：US20210060722A1
公开(公告)日：2021-03-04
申请号：US17097035
申请日：2020-11-13
申请人： NAKAYA CO LTD.
发明人： Naoya ETO
摘要： An electric grinding machine includes a spindle to be driven with a motor; a grinding disc attached to the spindle; a cover covering the grinding disc; a window disposed on the cover to expose an outer circumference of the grinding disc; a hinge mechanism joining the window to the cover so that the window freely moves between an opened position and a closed position, said hinge mechanism having a rotational axis disposed on the cover; a gate protruding from the window and having a cylindrical portion concentrical to the rotational axes; a hallowed portion formed in the gate, said hallowed portion forming a passage opening between the cover and the cylindrical portion when the window is closed; a slider disposed on the cover, said slider configured to pass through the passage opening to hold the window in the closed position; and a piston spring urging the slider toward the window.
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