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公开(公告)号：US20240269800A1
公开(公告)日：2024-08-15
申请号：US18560194
申请日：2022-04-25
Applicant: HUSQVARNA AB
Inventor： Tomas Torvaldsson , Viktor Laursen , Linus Ottosson , Daniel Gustavsson
CPC classification number: B24B49/12 , B24B7/186 , B24B55/052
Abstract: A floor grinder (100) for processing a concrete surface (101), the floor grinder comprising one or more rotatable abrasive tool holders (150) arranged in a plane (P) to hold respective abrasive tools (210, 510), at least one power source (110, 120) arranged to drive the tool holders (150), a cover body (130) fixedly arranged in relation to the plane (P), and a dust skirt (140) movably attached around a rim of the cover body (130) to engage the concrete surface (101) during floor grinding operation, where the floor grinder (100) comprises at least one tool wear indicator (160) configured to indicate a current tool wear based on a displacement of the dust skirt (140) relative to the cover body (130) in a direction (D) normal to the plane (P).
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公开(公告)号：US20240261927A1
公开(公告)日：2024-08-08
申请号：US18689258
申请日：2022-09-09
Applicant: Mirka Ltd
Inventor： Jani KAHARI , Mikael HÄGGBLOM
CPC classification number: B24B7/18 , B25J9/1633 , B25J11/0065
Abstract: A surface processing apparatus comprises a surface processing device to process a surface, a robot to move the surface processing device with respect to the surface, an electromagnetic actuator to electromagnetically apply an actuator force to the surface processing device, so as to cause the surface processing device to press against the surface with a controlled pressing force, and a control unit to control the pressing force by adjusting an electric current of the electromagnetic actuator.
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公开(公告)号：US12048982B2
公开(公告)日：2024-07-30
申请号：US16305997
申请日：2017-06-01
Applicant: HUSQVARNA AB
Inventor： Andreas Fogelberg , Daniel Gustavsson , Linus Ottosson , Samuel Adolfsson
CPC classification number: B24B41/047 , B24B7/186 , B24B27/0076 , B24B47/10 , B24B47/12 , F16H7/08 , F16H2007/0842 , F16H2007/0865
Abstract: The present disclosure relates to a grinding head (1) for a floor grinding machine for grinding floor surfaces of stone or stone-like material. Such a grinding head (1) comprises a lower casing member (3), comprising a lower support (31) and an upwardly extending edge portion (32), and an upper casing member (2), comprising an upper cover (21) and a downwardly extending edge portion (22), wherein the upper casing member (2) is joinable to the lower casing member (3) by causing axially distal portions of the edge portions to bear on each other.
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公开(公告)号：US20240149385A1
公开(公告)日：2024-05-09
申请号：US18280055
申请日：2022-02-07
Applicant: HUSQVARNA AB
Inventor： Martin Renneson , Tristan Nijs , Tijana Turbic , Henrik Andersson
IPC: B24B7/18
CPC classification number: B24B7/186
Abstract: An abrasive tool (200) for a floor grinder, the abrasive tool (200) comprising an attachment plate (230) arranged to releasably attach to a tool holder of the floor grinder, the abrasive tool (200) also comprising an abrasive tool section (220) at least partly formed in an abrasive material, wherein the attachment plate (230) comprises a supporting surface (235) at least partly formed in a plastic material, wherein the supporting surface (235) is configured to align with a corresponding surface (510) on the abrasive tool section (220), wherein the attachment plate (230) and the abrasive tool section (220) are held together by one or more welds.
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公开(公告)号：US20240130594A1
公开(公告)日：2024-04-25
申请号：US18489823
申请日：2023-10-17
Applicant: Bonastre System, S.L. , RCR Flooring Products Ltd
Inventor： Victor Bonastre Cervera
CPC classification number: A47L11/4036 , B24B7/18
Abstract: The present invention relates to an accessory for a polishing machine, suitable for the incorporation thereof in a polishing machine comprising a plurality of blades, characterized in that it comprises abrasive means and magnetic means, wherein the abrasive means and the magnetic means are mutually fitted out so as to be mutually fixable, the magnetic means in turn being fitted out for the incorporation thereof in the blades, with the abrasive means thereby being incorporated in the blades through said magnetic means, and with the same blades also being suitable and having movement capacity to allow floor polishing by means of the abrasive means incorporated therein.
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Patent Agency Ranking
公开(公告)号：US11919127B2
公开(公告)日：2024-03-05
申请号：US17075803
申请日：2020-10-21
Applicant: Black & Decker Inc.
Inventor： Benjamin Schramm , Robert Miebach , Joerg Roth , Felix Kraft , Pablo Garcia Ramiro
IPC: B24B7/18 , B24B23/02 , B24B27/00 , B24B41/047 , B24B55/10
CPC classification number: B24B7/184 , B24B55/102 , B24B23/028 , B24B27/0084 , B24B41/047
Abstract: 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：US20240066663A1
公开(公告)日：2024-02-29
申请号：US18347797
申请日：2023-07-06
Applicant: Nanjing Chervon Industry Co., Ltd.
Inventor： Zhen Xu
CPC classification number: B24B49/10 , B24B7/184 , B24B47/12 , H02P27/085
Abstract: A power tool includes an electric motor including multi-phase windings; and a control circuit for controlling the electric motor to rotate. The control circuit includes a driver circuit including multiple switching elements having multiple driving states to drive the electric motor to rotate; a parameter detection module for detecting an electrical parameter of the control circuit; and a controller for outputting a pulse-width modulation (PWM) control signal to control the driver circuit to change the multiple driving states. The controller is configured to change the absolute value of the variation of a duty cycle of the PWM control signal according to the electrical parameter to control a steady-state error of the electric motor running in a constant speed to be within a preset range.
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8.发明公开公开(公告)号：US20240052647A1
公开(公告)日：2024-02-15
申请号：US18267493
申请日：2021-12-13
Applicant: HUSQVARNA AB
Inventor： Andreas Jönsson
CPC classification number: E04F21/245 , B24B7/186 , B24B47/10 , B24B49/12
Abstract: A machine (100) for processing a concrete surface, the machine comprising a control unit (101) and at least three tool carriers (110) arranged to rotate about respective tool carrier axes, wherein at least one of the tool carriers (110) is arranged to generate a variable force acting on the machine, relative to the concrete surface, in response to a control signal generated by the control unit (101), wherein the control signal is configured to provide locomotion by the machine relative to the surface.
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公开(公告)号：US20240042566A1
公开(公告)日：2024-02-08
申请号：US17817850
申请日：2022-08-05
Applicant: Wagman Metal Products Inc.
Inventor： George Frederick Wagman, III
IPC: B24B7/18 , B24B41/047
CPC classification number: B24B7/188 , B24B41/047
Abstract: Embodiments relate to a surface processing device that may be used to surface process concrete or other hard suitable surfaces. A surface processing device comprises a plate, a bearing, and a plurality of bush heads. The plate has a top and bottom. The bearing can be attached to the top of the plate to facilitate rotation of the plate. The plurality of bush heads can be attached to the bottom of the plate. Each bush head comprises a bracket and a grinding wheel.
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公开(公告)号：US20240009791A1
公开(公告)日：2024-01-11
申请号：US18245893
申请日：2021-09-18
Applicant: GUANGDONG BRIGHT DREAM ROBOTICS CO., LTD.
Inventor： Xianhua ZHOU , Jiaxiang HU , Ruolan YANG
IPC: B24B7/18 , E01C23/088
CPC classification number: B24B7/186 , E01C23/0885
Abstract: Provided is a grinding robot. The grinding robot includes a main rack and a flip bracket pivotally connected to the main rack through a pin shaft. A flip device is further provided between the flip bracket and the main rack and includes a first drive portion and a linkage mechanism. The first drive portion is disposed on the main rack. One end of the linkage mechanism is pivotally connected to the main rack and another end of the linkage mechanism is pivotally connected to the flip bracket. A spacing exists between a pivot point between the flip bracket and the main rack and a pivot point between the flip bracket and the linkage mechanism.
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