公开(公告)号：US20240326216A1

公开(公告)日：2024-10-03

申请号：US18422193

申请日：2024-01-25

申请人： MAKITA CORPORATION

发明人： Yoshitaka MACHIDA ,  Taro Hisano

IPC分类号： B25D17/04 ,  B25D16/00

CPC分类号： B25D17/043 ,  B25D16/00

摘要： An auxiliary handle for a work tool reduces vibrations transmitted to a grip. An auxiliary handle for a work tool is an auxiliary handle detachably attachable to the work tool. The auxiliary handle includes an attachment being elongated, elastically deformable, and windable around an outer circumference of the work tool, a threaded shaft including a basal portion connected to two ends of the attachment, a base being cylindrical and receiving the threaded shaft, a distal member being adjacent to a distal end of the base and receiving a distal end of the threaded shaft screwed into the distal member, and a grip being cylindrical and covering the base.

公开(公告)号：US12097602B2

公开(公告)日：2024-09-24

申请号：US18035310

申请日：2021-11-09

申请人： Hilti Aktiengesellschaft

发明人： Wolfgang Schreiber

IPC分类号： B25F5/02 ,  B25D11/12 ,  B25D16/00 ,  B25F5/00

CPC分类号： B25F5/02 ,  B25D11/125 ,  B25D16/00 ,  B25F5/001 ,  B25D2250/065 ,  B25D2250/121 ,  B25D2250/361

摘要： The hand-held power tool (1) includes a transmission housing (24) for receiving a transmission (23), a motor housing (25) for receiving a motor (5), a bearing plate (28) arranged between the transmission housing (24) and the motor housing (25) for mounting a shaft (21) of the motor (5), at least one first screw (32) which fastens the bearing plate (28) to the motor housing (25), wherein the first screw (32) is not in engagement with the transmission housing (24), and at least one second screw (33) which fastens the transmission housing (24) to the bearing plate (28), wherein the second screw (33) is not in engagement with the motor housing (25).

公开(公告)号：US11992926B2

公开(公告)日：2024-05-28

申请号：US17327267

申请日：2021-05-21

申请人： Robert Bosch GmbH

发明人： Matthias Tauber ,  Immanuel Werner ,  Hansjoerg Beutel ,  Andreas Strasser ,  Hardy Schmid

IPC分类号： B25D11/00 ,  B25D17/02 ,  B25D17/04 ,  H02P29/00 ,  B25D16/00

CPC分类号： B25D11/005 ,  B25D17/02 ,  B25D17/043 ,  H02P29/0022 ,  B25D16/00 ,  B25D2250/095 ,  B25D2250/101 ,  B25D2250/181 ,  B25D2250/201 ,  B25D2250/221 ,  B25D2250/331 ,  B25D2250/375

摘要： A hand-held power tool includes an electric motor, a tool unit, and at least one operating unit. A motor switching unit is configured to sense a contact-pressure characteristic between the tool unit and the operating unit, and configured to switch the electric motor at least partially in dependence on the contact-pressure characteristic.

公开(公告)号：US11969867B2

公开(公告)日：2024-04-30

申请号：US17632601

申请日：2020-08-10

申请人： Hilti Aktiengesellschaft

发明人： Maximilian Knyrim ,  Michael Unsöld

IPC分类号： B25D17/04 ,  B25D11/12 ,  B25D16/00

CPC分类号： B25D16/00 ,  B25D11/12 ,  B25D2211/003 ,  B25D2211/068 ,  B25D2250/095

摘要： Hand-held power tool having a tool fitting for holding a striking and rotating tool on a working axis, an electric motor, an impact mechanism, which has a striker moved periodically along the working axis, and having a rotary drive, which drives a spindle bearing the tool fitting in a rotating manner about the working axis, the rotary drive having a step-down eccentric gear mechanism, connected to the electric motor, and the spindle being coupled to the eccentric gear mechanism.

公开(公告)号：US20240066675A1

公开(公告)日：2024-02-29

申请号：US18364573

申请日：2023-08-03

申请人： SUBARU CORPORATION

发明人： Ryohei ONO ,  Masao WATANABE ,  Tatsuo NAKAHATA ,  Shinya MATSUO

IPC分类号： B25D16/00 ,  B23B45/00 ,  B25D11/10

CPC分类号： B25D16/00 ,  B23B45/00 ,  B25D11/104 ,  B25D2211/065

摘要： According to one implementation, a tool driving device includes a drill chuck, a motor, a casing and a vibrating mechanism. The drill chuck holds a drill. The motor is configured to rotate the drill chuck. The casing houses the motor. The vibrating mechanism is configured to periodically reciprocate the drill chuck relatively to the casing in a tool axis direction during rotation of the drill chuck. The vibrating mechanism is configured to distance the drill chuck from the casing at a first speed smaller than a second speed for bringing the drill chuck close to the casing.

公开(公告)号：US11833653B2

公开(公告)日：2023-12-05

申请号：US17668059

申请日：2022-02-09

申请人： MAKITA CORPORATION

发明人： Yoshitaka Machida

IPC分类号： B25D17/04 ,  B25D16/00

CPC分类号： B25D17/043 ,  B25D16/00 ,  B25D2250/121 ,  B25D2250/371

摘要： A power tool includes a tool body, a motor, a handle, at least one biasing member, and at least one guide part. The handle is connected to the tool body to be pivotable and to be movable in at least a front-rear direction relative to the tool body. The handle includes a cover part covering a portion of the tool body and a grip part extending in a cantilever manner from the cover part. The at least one biasing member biases the tool body and the handle away from each other in the front-rear direction. The at least one guide part includes a first portion disposed on a portion of the tool body covered by the cover part, and a second portion disposed on the cover part of the handle and connected to the first portion to be movable in at least the front-rear direction relative to the first portion.

公开(公告)号：US20230311289A1

公开(公告)日：2023-10-05

申请号：US18014100

申请日：2021-02-22

申请人： Hilti Aktiengesellschaft

发明人： Maximilian KNYRIM ,  Markus HARTMANN ,  Bastian PLÜMACHER ,  Olaf KOCH

IPC分类号： B25D16/00 ,  B25D11/06 ,  B25D17/02 ,  B23B51/00

CPC分类号： B25D16/00 ,  B25D11/06 ,  B25D17/02 ,  B25D2217/0003 ,  B25D2216/003 ,  B25D2250/201 ,  B23B51/00

摘要： A hammer drill having an impact mechanism and a rotary drive, wherein the hammer drill is designed to rotate a tool at a speed n about a longitudinal axis of the tool and to drive it with an output impact power PS along the longitudinal axis with a striking movement is disclosed. At a working point, at least one condition is met: 1. The ratio of the output impact power PS to the speed n is at least 3.5 W/rpm; 2. Depending on the output impact power PS, the speed n is at most (PSAN−300)2/2000+150) rpm; 3. In the event of an infinitesimal change in the output impact power PS, the speed n changes by at most 0.1 rpm/W.

公开(公告)号：US20230234205A1

公开(公告)日：2023-07-27

申请号：US18295543

申请日：2023-04-04

申请人： MILWAUKEE ELECTRIC TOOL CORPORATION

发明人： Jonathan E. Abbott ,  Timothy R. Obermann ,  John S. Dey, IV ,  Benjamin R. Suhr ,  Richard A. Ryer ,  Maxwell L. Merget ,  Douglas R. Fieldbinder

IPC分类号： B25F5/00 ,  B25F5/02 ,  H02K7/14 ,  H02K7/00 ,  H02K11/21 ,  B25D16/00 ,  B25B21/02

CPC分类号： B25F5/001 ,  B25F5/02 ,  H02K7/145 ,  H02K7/003 ,  H02K11/21 ,  B25D16/00 ,  B25B21/02 ,  B25F5/00 ,  B25D2250/221 ,  B25D2250/265 ,  B25D2250/205 ,  B25D2250/201

摘要： Kickback control methods for power tools. One power tool includes a movement sensor configured to measure an angular velocity of the housing of the power tool about the rotational axis. The power tool includes an electronic processor coupled to the switching network and the movement sensor and configured to implement kickback control of the power tool. To implement the kickback control, the electronic processor is configured to control the switching network to drive the brushless DC motor, receive measurements of the angular velocity of the housing of the power tool from the movement sensor, determine that a plurality of the measurements of the angular velocity of the housing of the power tool exceed a rotation speed threshold, and control the switching network to cease driving of the brushless DC motor in response to determining that the plurality of the measurements of the angular velocity exceed the rotation speed threshold.

公开(公告)号：US20230173652A1

公开(公告)日：2023-06-08

申请号：US18103507

申请日：2023-01-31

申请人： MAKITA CORPORATION

发明人： Kiyonobu YOSHIKANE ,  Hajime TAKEUCHI ,  Yoshiro TADA ,  Masanori FURUSAWA ,  Masao MIWA ,  Shinji ONODA ,  Yoshitaka MACHIDA

IPC分类号： B25D16/00 ,  B25F5/02

CPC分类号： B25D16/00 ,  B25F5/02

摘要： A power tool, such as a hammer drill (100), has first and second battery mount parts (160A, 160B) that are aligned in a longitudinal direction of the power tool. First and second batteries (170A, 170B) are mountable thereon in series along a straight line that extends in the longitudinal direction. The first battery (170A) is mounted on the first battery mount part (160A) by sliding along the straight line towards the second battery mount part (160B). The second battery (170B) is mounted on the second battery mount part (170B) by sliding along the straight line towards the first battery mount part (170A).

公开(公告)号：US20230173629A1

公开(公告)日：2023-06-08

申请号：US17924117

申请日：2021-04-23

申请人： Koki Holdings Co., Ltd.

发明人： Hiroyuki TAGAMI ,  Naoto ICHIHASHI ,  Yuki TAKAHASHI

IPC分类号： B23Q11/00 ,  B04C5/04 ,  B04C5/185 ,  B23B47/34 ,  B25D16/00

CPC分类号： B23Q11/0046 ,  B04C5/04 ,  B04C5/185 ,  B23B47/34 ,  B25D16/00

摘要： A dust collection device 40 comprises: an intake pipe 53 connected to a suction unit 52; a cyclone unit 60 that swirls air flowing out from the intake pipe 53 and centrifuges dust; and a filter unit 70 that accommodates a filter 72. The filter unit 70 has an outlet 74 connected to the cyclone unit 60 and discharging the air having passed through the filter 72. Therefore, the air and dust near a tip tool T can be separated by the cyclone unit 60. Furthermore, even when the dust remains, the remaining dust can be removed by the filter 72. Furthermore, the intake pipe 53 and the cyclone unit 60 are arranged at positions where the intake pipe 53 and the cyclone unit 60 overlap in a front-rear direction, and the filter unit 70 is disposed behind the cyclone unit 60.