公开(公告)号：US12103155B2

公开(公告)日：2024-10-01

申请号：US18177535

申请日：2023-03-02

申请人： Nanjing Chervon Industry Co., Ltd.

发明人： Yan Han ,  Jiuling Yao ,  Jianheng Cai ,  Hongbo Sun

IPC分类号： B25D16/00 ,  B25D11/06

CPC分类号： B25D16/006 ,  B25D11/062 ,  B25D16/003 ,  B25D2216/0084 ,  B25D2250/095 ,  B25D2250/121 ,  B25D2250/331

摘要： An electric hammer includes a housing, an electric motor, an output assembly, an impact assembly, a mounting shaft, a clutch assembly, and a switching assembly. The mounting shaft is rotatable about a second axis. When the electric hammer is in the drill mode, a sleeve of the output assembly rotates. When the electric hammer is in the hammer drill mode, the sleeve rotates and an impact block of the impact assembly reciprocates in the sleeve. The switching assembly is configured to switch the clutch assembly between a first state and a second state and includes a switching element. The switching element includes a forced end and a drive end, the output assembly moving along a first axis drives the forced end to move, and the drive end is configured to drive the clutch assembly to be switched to the first state.

公开(公告)号：US20240278404A1

公开(公告)日：2024-08-22

申请号：US18581634

申请日：2024-02-20

申请人： Robert Bosch GmbH

发明人： Maximilian Weinbrecht ,  Michael Haigis ,  Selim Mustafa ,  Thomas Duerr

IPC分类号： B25D16/00 ,  B25F5/00

CPC分类号： B25D16/003 ,  B25F5/001 ,  B25D2250/165 ,  B25D2250/321 ,  B25D2250/331

摘要： An axial bearing for reducing wear is provided in an overload clutch for arrangement between a drive unit and a power take-off unit of a hand-held power tool in order to enable decoupling of the drive unit from the power take-off unit in the hand-held power tool when a limit torque is exceeded.

公开(公告)号：US12011809B2

公开(公告)日：2024-06-18

申请号：US17652064

申请日：2022-02-22

申请人： BASSO INDUSTRY CORP.

发明人： Cheng-en Tsai ,  Chun-min Shih ,  Chong-kun Hung

IPC分类号： B23Q11/00 ,  B25B23/147 ,  B25D16/00 ,  H02K7/14 ,  H02K11/21 ,  H02K11/33

CPC分类号： B25B23/147 ,  B23Q11/0085 ,  B25D16/006 ,  H02K7/145 ,  H02K11/21 ,  H02K11/33 ,  B25D2216/0084 ,  B25D2250/195

摘要： A power tool and a safety control circuit module and a safety control method thereof are provided. The power tool includes a power supply device, a control processing device, a safety control circuit module, and a power output device. The control processing device is electrically connected with the power supply device. The safety control circuit module includes a first switch control circuit, a second switch control circuit, a third switch control circuit, a first resistor, and a first diode. The power output device includes a first power connection terminal and a second power connection terminal. Before switch units of the control circuits are controlled, the control processing device detects whether the switch unit has failed, so as to increase safety.

公开(公告)号：US12005556B2

公开(公告)日：2024-06-11

申请号：US17434323

申请日：2020-03-06

申请人： Koki Holdings Co., Ltd.

发明人： Kento Shiina ,  Takahiro Ookubo ,  Satoshi Abe

IPC分类号： B25D16/00 ,  B25D17/24

CPC分类号： B25D16/006 ,  B25D17/24 ,  B25D2211/006 ,  B25D2211/061 ,  B25D2216/0023 ,  B25D2216/0038 ,  B25D2222/57

摘要： A workability of a driving work machine is improved by reduction in vibration transmitted to a housing. A driving work machine 10 includes: a cylinder 21 applying a rotational force to a tip tool; a piston 33 applying a striking force to the tip tool; a driving source generating a power; a switching part 61 making switching between at least two operational states including a rotational striking state of transmitting the power as a striking force and a rotational force to the tip tool and a rotational state of transmitting the power as the rotational force but not transmitting the power as the striking force to the tip tool; and a housing 12. The cylinder 21 includes a pushing part 46 pushing the switching part 61 rearward, the switching part 61 is able to switch an operational state of the cylinder 21 by the rearward movement caused by the pushing force of the pushing part 46, and a rubber annular member 72 serving as an anti-vibration part is arranged between the pushing part 46 and the preventing part 71.

公开(公告)号：US11938605B2

公开(公告)日：2024-03-26

申请号：US17237566

申请日：2021-04-22

申请人： Nanjing Chervon Industry Co., Ltd.

发明人： Huaishu Wang ,  Tianxiao Xu

IPC分类号： B25D16/00 ,  B25F5/02

CPC分类号： B25D16/006 ,  B25F5/02 ,  B25D2250/255

摘要： An electric tool includes a housing, a motor, a tool interface, a control circuit, a master switch, and a protection circuit. The tool interface is configured to connect to a power supply to supply power to the motor. The master switch is disposed on a current path formed by the tool interface and the control circuit. The master switch has an on state in which electric connection between the tool interface and the control circuit is on and an off state in which the electric connection between the tool interface and the control circuit is off. The protection circuit is connected between the master switch and the control circuit and is configured to disconnect connection between the tool interface and the control circuit in response to the master switch being in the on state before the tool interface connects to the power supply.

公开(公告)号：US11926030B2

公开(公告)日：2024-03-12

申请号：US17396863

申请日：2021-08-09

申请人： MAKITA CORPORATION

发明人： Kiyonobu Yoshikane ,  Yoshiro Tada

IPC分类号： B25D11/06 ,  B25D17/04 ,  B25D16/00

CPC分类号： B25D17/043 ,  B25D11/06 ,  B25D16/006 ,  B25D2250/095 ,  B25D2250/121 ,  B25D2250/221

摘要： A power tool includes a motor, a driving mechanism, a main housing, a handle housing, a first guide part and a second guide part. The handle housing is movable relative to the main housing at least in a front-rear direction. The first and second guide parts are configured to guide relative sliding between the main housing and the handle housing in the front-rear direction. Each of the first guide part and the second guide part includes a first engagement part and a second engagement part engaged with each other to be slidable in the front-rear direction. The main housing has the first engagement part. The handle housing has the second engagement part. The second guide part is spaced apart from the first guide part and located rearward of the first guide part in the front-rear direction.

公开(公告)号：US11897110B2

公开(公告)日：2024-02-13

申请号：US16177612

申请日：2018-11-01

申请人： MILWAUKEE ELECTRIC TOOL CORPORATION

发明人： Maxwell L. Merget ,  Jingyuan Liang ,  Michael R. Sande ,  Michael Halverson ,  Ian Duncan ,  Nicholas C. Mantych ,  Alex Huber

IPC分类号： B25F5/00 ,  H02P29/40 ,  B25F5/02 ,  B25D17/00 ,  B25B21/00 ,  B25B21/02 ,  B25D16/00

CPC分类号： B25F5/001 ,  B25B21/00 ,  B25D17/00 ,  B25F5/026 ,  H02P29/40 ,  B25B21/026 ,  B25D16/003 ,  B25D16/006 ,  B25D2216/0084 ,  B25D2250/095 ,  B25D2250/201 ,  B25D2250/221 ,  B25D2250/255 ,  B25D2250/265

摘要： A rotary power tool includes a housing having a motor housing portion and a handle portion extending therefrom. An electric motor is positioned within the motor housing portion. The rotary power tool further includes a trigger switch configured to activate and deactivate the motor. The rotary power tool further includes a non-contact speed selector switch positioned in the housing. The non-contact speed selector switch is configured to adjust a rotational speed of the motor. The non-contact speed selector switch is separate from the trigger switch.

公开(公告)号：US11890730B2

公开(公告)日：2024-02-06

申请号：US17806163

申请日：2022-06-09

申请人： MAKITA CORPORATION

发明人： Yuta Araki ,  Akira Ito

IPC分类号： B25B23/14 ,  B25B23/147 ,  B25B21/02 ,  B25D16/00 ,  B25B21/00

CPC分类号： B25B23/1475 ,  B25B21/007 ,  B25B21/023 ,  B25D16/006 ,  B25D2216/0084

摘要： A driver drill includes a motor housing that holds an electric motor, an axis of rotation of a rotor of the electric motor extending in a front-rear direction of the driver drill, a grip housing having an upper end connected to a lower part of the motor housing and an enlarged-part housing connected to a lower end of the grip housing and spaced from the motor housing in an up-down direction of the driver drill that is perpendicular to the front-rear direction. A torque setting of the driver drill is changeable, and the driver drill is changeable between a setting unlocked state in which the torque setting is changeable and a setting locked state in which the torque setting is not changeable.

公开(公告)号：US20240009823A1

公开(公告)日：2024-01-11

申请号：US18211009

申请日：2023-06-16

申请人： MAKITA CORPORATION

发明人： Hajime TAKEUCHI ,  Yoji INOUE ,  Masanori FURUSAWA

IPC分类号： B25D16/00

CPC分类号： B25D16/006 ,  B25D2211/068 ,  B25D2216/0015 ,  B25D2216/0023 ,  B25D2216/0084 ,  B25D2250/121

摘要： A rotary hammer includes a tool body, a tool holder, a cylinder, and a coupling member. The tool holder has a tubular shape and a longitudinal axis. The tool holder is configured to hold a tool accessory to be movable along the longitudinal axis and is supported by the tool body to be rotatable around the longitudinal axis. The cylinder extends coaxially with the tool holder and is supported by the tool body to be rotatable around the longitudinal axis. The coupling member is between the tool holder and the cylinder in a radial direction of the tool holder and is engaged with the tool holder and the cylinder to couple the tool holder and the cylinder together such that the tool holder and the cylinder integrally rotate.

公开(公告)号：US20240001525A1

公开(公告)日：2024-01-04

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).