公开(公告)号：US20240009882A1

公开(公告)日：2024-01-11

申请号：US18219388

申请日：2023-07-07

申请人： Black & Decker Inc.

发明人： HuaMing YAO ,  Yue TIAN ,  Jun LIU ,  Torrey R. LAMBERT ,  John S. MACEO, JR. ,  Jason D. McKILLICAN ,  YanJuan ZOU

IPC分类号： B27B5/38 ,  B27B9/00 ,  H02P3/14 ,  H02J7/14

CPC分类号： B27B5/38 ,  B27B9/00 ,  H02P3/14 ,  H02J7/1415

摘要： A cordless aw is provided with regenerative braking means that increases the number of repeated cuttings the saw is able to perform (x) per full discharge cycle of the battery pack, as compared to the number of repeated cuttings achievable by the same saw not employing a regenerative braking means (y) per full discharge cycle of the battery pack, such that x/y is approximately at least one of the following: i) 1.1 when cutting a Pressure-Treated (PT) lumber workpiece having a cross-sectional size of approximately 89 mm×89 mm±2 mm, ii) 1.15 when cutting a Spruce Pine Fir (SPF) lumber workpiece having a cross-sectional size of approximately 38 mm×89 mm±2 mm, or iii) 1.25 when cutting Medium Density Fiberboard (MDF) workpiece having a thickness of approximately 19 mm±1 mm and a width of approximately 76 mm±2 mm.

公开(公告)号：US11015759B2

公开(公告)日：2021-05-25

申请号：US16176310

申请日：2018-10-31

申请人： Nanjing Chervon Industry Co., Ltd.

发明人： Yongan Sun ,  Ailong Zou

IPC分类号： F16P3/00 ,  B25F5/00 ,  B23B45/02 ,  H02P23/12 ,  H02P23/20 ,  B23D45/16 ,  B24B23/02 ,  B27B9/00 ,  B25D16/00 ,  B23D59/00 ,  F16P7/02 ,  B23Q11/04 ,  B25D17/24 ,  B25B21/00

摘要： A power tool and a detection method for the power tool. The detection method includes collecting acceleration data, via use of an acceleration sensor of the power tool, along a tangential direction of a rotation axis of a working portion of the power tool, determining whether a proportion of the collected acceleration data that exceeds a first acceleration threshold in a preset time window exceeds a preset value, and determining that a kickback occurs in the power tool when the proportion exceeds the preset value.

公开(公告)号：US20190329337A1

公开(公告)日：2019-10-31

申请号：US16390483

申请日：2019-04-22

申请人： MILWAUKEE ELECTRIC TOOL CORPORATION

发明人： Patrick Owens ,  Derek J. Schwab ,  Christopher Derksen ,  Sean Kelley ,  Nikos A. Gainacopulos

IPC分类号： B23D47/12 ,  B27B9/00

摘要： A cut-off tool includes a housing, an arbor supported by the housing for relative movement therewith, and a cutting disk attachable to the arbor. The cut-off tool further includes a motor coupled to the arbor to provide torque thereto, and a battery pack removably coupled to the housing. The battery pack is for providing power to the motor. The cut-off tool further includes a switch operable to adjust rotation of the motor between a first rotational direction and an opposite, second direction for selectively rotating the cutting disk in the first rotational direction or second rotational direction, respectively.

公开(公告)号：US10357873B2

公开(公告)日：2019-07-23

申请号：US12662690

申请日：2010-04-28

申请人： Henning Schweinberger ,  Klaus Scholz

发明人： Henning Schweinberger ,  Klaus Scholz

IPC分类号： B23D45/16 ,  B25F5/02 ,  B27B9/00 ,  B27B17/00 ,  B28D1/04 ,  B28D1/08 ,  B23D59/00 ,  B23Q11/00 ,  B23D47/02

摘要： The invention relates to a floor plate, in particular for portable, handheld tools with a combustion engine, an essentially flat surface with an continuous outer edge and at least one first opening with a related edge and a second opening with a related edge, wherein the at least one edge of an opening exhibits an element that projects at an inclined angle, which serves as a baffle plate to divert sparks and particles, and further that at least the continuous edge of the floor plate and/or the edge of at least one opening are at least sectionally beaded or pulled up.

公开(公告)号：US10286462B2

公开(公告)日：2019-05-14

申请号：US15577628

申请日：2016-04-29

申请人： Hitachi Koki Co., Ltd.

发明人： Tomomasa Nishikawa

IPC分类号： B23D45/04 ,  B23D47/00 ,  B25F5/00 ,  B27B5/20 ,  B27B9/00 ,  B25F5/02

摘要： To provide a cutting machine that suppresses swinging of the cutting portion when the battery pack is attached or detached, the cutting machine includes a cutting portion, a base, and a swing support mechanism. The cutting portion includes: a motor, a motor housing accommodating the motor, an output shaft configured to be rotated upon rotation of the motor, a battery pack serving as a power source of the motor, and a battery pack attaching portion including a pair of rail portions with which the battery pack is engageable, where a cutting blade is configured to be detachably attached to the output shaft. The base has a contact surface on which a workpiece is configured to be placed. The swing support mechanism is connected to the base and the cutting portion and includes a swing shaft extending in parallel to the output shaft. The swing support mechanism supporting the cutting portion such that the cutting portion is swingable about the swing shaft between a top dead center and a bottom dead center in a direction parallel to a side surface of the cutting blade. The pair of rail portions extend in a direction crossing the side surface of the cutting blade.

公开(公告)号：US09937570B2

公开(公告)日：2018-04-10

申请号：US15190872

申请日：2016-06-23

申请人： CHERVON (HK) LIMITED

发明人： Shibo Chen ,  Xiangqing Fu ,  Hongwei Wang

IPC分类号： B27B9/00 ,  B23D47/12 ,  H02K7/14

CPC分类号： B23D47/12 ,  B27B9/00 ,  H02K7/14 ,  H02K7/145

摘要： A cutting machine includes a cutting element for cutting material, a motor for driving the cutting element to rotate and a housing for containing the motor. The motor includes a rotor sleeve being formed with a receiving chamber, a motor shaft being capable of rotating together with the rotor sleeve, a stator core at least partially contained in the receiving chamber, stator coils wound around the stator core, and a stator bracket for fixing the stator core. The stator core is formed with a through hole for the motor shaft to pass there through, the stator coils are located outside the through hole and, the motor shaft is capable of rotating relative to the stator core.

公开(公告)号：US20180071845A1

公开(公告)日：2018-03-15

申请号：US15266478

申请日：2016-09-15

申请人： Dustless Depot, LLC

发明人： Kendall Hansen ,  Kyle Alan Bjork

IPC分类号： B23D59/00 ,  B23D45/16 ,  B27B9/00

CPC分类号： B23D59/006 ,  B27B9/02

摘要： A shroud for circular saws is provided. The shroud attaches to the shoe of a circular saw and includes a blade opening to allow the saw blade to pass through the shroud. Dust is collected from the front and back of the blade and directed to a vacuum through an internal plenum. The shroud may include vertical hoods which extend up from the front and back of the blade opening and cooperate with the circular saw blade guard to capture dust and debris. The bottom of the shroud may include wheels to assist in using the shroud and saw.

公开(公告)号：US09757806B2

公开(公告)日：2017-09-12

申请号：US13650428

申请日：2012-10-12

申请人： Makita Corporation

发明人： Tsutomu Naito ,  Hirotomo Inayoshi

IPC分类号： B23D47/12 ,  B27B9/00

CPC分类号： B23D47/12 ,  B27B9/00

摘要： A hand-held cutting tool may include a handle and a battery pack. The handle has a rear portion with respect to a work proceeding direction along which the cutting tool is moved for performing a cutting operation. When the battery pack is mounted to the rear portion of the handle, the longitudinal direction of the battery pack extends non-parallel with the work proceeding direction.

公开(公告)号：US09591811B2

公开(公告)日：2017-03-14

申请号：US13819844

申请日：2011-06-24

申请人： James Prohaska

发明人： James Prohaska

IPC分类号： A01G23/095 ,  A01G3/08 ,  B27B5/10 ,  B23D45/00 ,  B27B9/00

CPC分类号： A01G3/088 ,  A01G23/095 ,  B23D45/003 ,  B27B5/10 ,  B27B9/00 ,  B60Y2200/40 ,  Y10T83/95

摘要： An apparatus, such as for tree trimming, includes a mobile carriage having a frame and a pedestal supported by the frame. The apparatus further includes a boom, such as a telescoping boom that is secured to the pedestal through a boom support. The pedestal is pivotable with respect to the carriage frame so that the boom may be selectively operated in a variety of orientations. The mobile carriage of the apparatus is sufficiently compact to fit though tight openings, while also being capable of stably supporting boom extension for operation of a distal end of the boom at elevated heights.

公开(公告)号：US20170066068A1

公开(公告)日：2017-03-09

申请号：US15357719

申请日：2016-11-21

申请人： Andreas Stihl AG & Co. KG

发明人： Sebastian Hanussek ,  Jan Rieger

IPC分类号： B23D47/12 ,  F16H55/36 ,  F16H7/02 ,  F16H7/12 ,  B27B5/38 ,  B27B9/00

CPC分类号： B23D47/12 ,  B23D45/16 ,  B27B5/38 ,  B27B9/00 ,  F16H7/02 ,  F16H7/1281 ,  F16H55/36 ,  F16H2007/0806 ,  F16H2007/0865 ,  F16H2007/0893

摘要： A handheld work apparatus has a drive motor which drives a work tool in rotation via a belt drive. The belt drive has at least one first, driving pulley and at least one second, driven pulley. Between the first pulley and the second pulley there acts at least one drive belt for transmitting the drive torque. A second pulley is connected to the tool for conjoint rotation. The rotational speed of the second pulley is less than the rotational speed of the first pulley during operation. The work apparatus has a brake unit which acts on the first pulley. The belt drive includes at least one redirection roll. During braking, at least one redirection roll bears on the tight side of each drive belt which acts between the first pulley and the second pulley. This allows a simple structure and safe braking of the work tool.

摘要翻译： 手持式工作装置具有通过皮带驱动器驱动工作工具旋转的驱动马达。 带驱动器具有至少一个第一驱动滑轮和至少一个第二从动滑轮。 在第一滑轮和第二滑轮之间，至少有一个用于传递驱动扭矩的传动带。 第二滑轮连接到工具上用于联合旋转。 第二带轮的转速小于第一带轮在运转中的转速。 作业装置具有作用在第一滑轮上的制动单元。 带驱动器包括至少一个重定向辊。 在制动期间，至少一个重定向辊承载在作用在第一滑轮和第二滑轮之间的每个传动带的紧密侧上。 这允许工作工具的简单结构和安全制动。