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公开(公告)号：US20240109171A1
公开(公告)日：2024-04-04
申请号：US17768530
申请日：2020-11-04
发明人： Stefan RINGLER , Ehsan MAHDIZADEH
CPC分类号： B25D11/005 , B25D17/043 , B25D2250/221 , B25D2250/265
摘要： Handle apparatus on a power tool, in particular a chipping hammer, having a drive, a control device, a transmission device, wherein the handle apparatus contains a lever element that is pivotable relative to a housing of the power tool. The lever element is movable reversibly relative to the housing of the power tool by exertion of a force in one direction, and a sensor device is contained for sensing at least one first or second position of the lever element relative to the housing of the power tool, wherein a first rotational speed value for the drive is settable depending on the first sensed position of the lever element relative to the housing of the power tool or at least one second rotational speed value for the drive is settable depending on the second sensed position of the lever element relative to the housing of the power tool.
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公开(公告)号：US20240083003A1
公开(公告)日：2024-03-14
申请号：US18508298
申请日：2023-11-14
IPC分类号： B25D11/06 , B25D11/00 , B25D11/12 , B25D17/04 , B25D17/06 , B25D17/24 , B25D17/26 , B25F5/00 , B25F5/02 , H01M50/247 , H02K7/14 , H02P29/00
CPC分类号： B25D11/064 , B25D11/005 , B25D11/125 , B25D17/04 , B25D17/06 , B25D17/24 , B25D17/26 , B25F5/00 , B25F5/02 , H01M50/247 , H02K7/145 , H02P29/00 , B25D2250/095 , B25D2250/121 , B25D2250/175 , B25D2250/201 , B25D2250/221 , B25D2250/391 , H01M2220/30
摘要： A percussion tool includes a housing, a percussion mechanism including a striker supported for reciprocation in the housing along a first axis, and an anti-vibration system for attenuating vibration in a direction of the first axis. The anti-vibration system includes a linkage coupling the percussion mechanism to the housing. The linkage permits relative movement between the housing and the percussion mechanism along the first axis. The anti-vibration system also includes a counterweight supported by the percussion mechanism for relative movement therewith along a second axis that is parallel with the first axis. The counterweight reciprocates out of phase with the striker to attenuate vibration in the direction of the first axis.
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公开(公告)号：US11878401B2
公开(公告)日：2024-01-23
申请号：US17026744
申请日：2020-09-21
发明人： Frank Kohlschmied , Markus Hartmann
CPC分类号： B25D11/005 , B25D16/00 , B25D2217/0015 , B25D2217/0019 , B25D2250/035
摘要： A handheld power tool 1 has a tool socket 2 to hold a tool along a working axis 11. A motor-driven, pneumatic striking mechanism 6 has an exciter 17 which is driven by a motor 5, a striker 14 that is coupled to the exciter 17 via a pneumatic chamber 19, and an intermediate striker 22 arranged on the working axis 11 in the striking direction 12 behind the striker 14. A ventilation opening 30 connects a cavity 29 situated between the striker 14 and the intermediate striker 22 to the environment. A valve 38 that closes the ventilation opening 30 is opened when actuated by the intermediate striker 22 when the intermediate striker 22 is moved into its working position counter to the striking direction 12.
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公开(公告)号：US11801592B1
公开(公告)日：2023-10-31
申请号：US17108603
申请日：2020-12-01
申请人： Wesley Ducharme
发明人： Wesley Ducharme
CPC分类号： B25D11/064 , B25D2250/171
摘要： Rail hammer assemblies suitable for advancing driving a member into or toward or pulling a member from or away from a workpiece, respectively may include an impact mechanism. The impact mechanism may include an elongated slide rail. A first rail impact plate may be carried by the slide rail. A second rail impact plate may be carried by the slide rail in spaced-apart relationship to the first rail impact plate. At least a first permanent magnet may be carried by the slide rail outside the first rail impact plate. At least a second permanent magnet may be carried by the slide rail outside the second rail impact plate. An impact hammer may be slidably carried by the slide rail between the first rail impact plate and the second rail impact plate. The impact hammer may include at least one electromagnet. A control system may include at least one power source. A first button may interface with the at least one power source and the electromagnet to facilitate travel of the impact hammer in a first direction on the slide rail. A second button may interface with the at least one power source and the electromagnet to facilitate travel of the impact hammer in a second direction on the slide rail. Rail hammer methods are also disclosed.
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公开(公告)号：US11794324B2
公开(公告)日：2023-10-24
申请号：US16830375
申请日：2020-03-26
申请人： MAKITA CORPORATION
CPC分类号： B25D11/005 , B23Q11/0046 , B23Q11/0071 , B25D16/00 , B25D17/20 , B25D2216/0023 , B25D2217/0057 , B25D2250/095 , B25D2250/221
摘要： A dust collecting system includes a power tool and a dust collector. The power tool includes at least one battery-mounting part, a first motor, a driving mechanism and a body housing. The at least one battery-mounting part is each configured to removably receive a battery. The first motor is configured to operate with electric power supplied from the battery. The driving mechanism is configured to drive the tool accessory by power of the first motor. The body housing houses the first motor and the driving mechanism. The dust collecting system includes a control device configured to control operation of at least one of the power tool and the dust collector according to a state of the whole dust collecting system.
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公开(公告)号：US11759935B2
公开(公告)日：2023-09-19
申请号：US17158122
申请日：2021-01-26
IPC分类号： B25F5/00 , B25D11/06 , B25D11/00 , B25D17/26 , B25D17/24 , B25D17/04 , B25D11/12 , B25F5/02 , H01M50/247 , B25D17/06 , H02K7/14 , H02P29/00
CPC分类号： B25D11/064 , B25D11/005 , B25D11/125 , B25D17/04 , B25D17/06 , B25D17/24 , B25D17/26 , B25F5/00 , B25F5/02 , H01M50/247 , H02K7/145 , H02P29/00 , B25D2250/095 , B25D2250/121 , B25D2250/175 , B25D2250/201 , B25D2250/221 , B25D2250/391 , H01M2220/30
摘要： A percussion tool comprises a housing and an electric motor positioned within the housing. The percussion tool further comprises a battery pack supported by the housing for providing power to the motor. The battery pack includes a plurality of battery cells having a nominal voltage of up to 120 Volts. The percussion tool further comprises a percussion mechanism driven by the motor and including a striker supported for reciprocation in the housing. The percussion tool has a ratio of impact energy to mass that is greater than or equal to 2.5 Joules/kilogram.
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公开(公告)号：US11565392B2
公开(公告)日：2023-01-31
申请号：US16830466
申请日：2020-03-26
申请人： MAKITA CORPORATION
发明人： Hajime Takeuchi
摘要： A dust collecting system includes a power tool configured to perform processing operation on a workpiece by driving a tool accessory and a dust collector configured to collect dust generated by the processing operation. The power tool includes a first motor, a driving mechanism, a body housing, a first detecting device, an operation member and a second detecting device. The first detecting device is configured to detect an operation of pressing the tool accessory against the workpiece. The operation member is configured to be externally operated by a user. The second detecting device is configured to detect an operation of the operation member. The dust collector includes a second motor and a fan. The dust collecting system includes a first control device configured to control driving of the second motor based on detection results of the first detecting device and the second detecting device.
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公开(公告)号：US11059155B2
公开(公告)日：2021-07-13
申请号：US16257600
申请日：2019-01-25
IPC分类号： B25D11/06 , B25D17/06 , H02K7/14 , H02P29/00 , B25D11/00 , B25D17/26 , B25D17/24 , B25D17/04 , B25D11/12 , B25F5/02 , B25F5/00 , H01M50/20
摘要： A percussion tool comprises a housing, an electric motor positioned within the housing, a percussion mechanism driven by the electric motor and including a striker supported for reciprocation in the housing, a battery pack removably coupled to the housing for providing power to the electric motor when coupled to the housing, and an electronic controller including an electronic processor and a memory. The electronic controller is coupled to the electric motor and configured to activate the motor and determine whether the percussion tool is in a loaded condition. In response to determining that the percussion tool is in the loaded condition, the electronic controller is configured to operate the motor in accordance with a predetermined profile and in response to determining that the percussion tool is in a no load condition, the electronic controller is configured to operate the motor at a no-load speed.
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公开(公告)号：US10888987B2
公开(公告)日：2021-01-12
申请号：US15587227
申请日：2017-05-04
发明人： Jack M. King, Jr.
摘要： A power tool accessory for elevating the base of a power tool from off a work surface and a method of use. The accessory or ski comprises a bridge, a first side wall coupled to the bridge, and a second side wall coupled to the bridge opposite the first side wall. The bridge, the first side wall, and the second side wall form an upper surface and an opening through which a power cord may pass. The upper surface is configured to receive a base of a power tool. Because the ski elevated the power tool from off of a work surface, dust, debris, and grit is not brought into the intake of the power tool, the power cord is not kinked, and the base of the power tool is not worn down on the work surface.
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公开(公告)号：US10814467B2
公开(公告)日：2020-10-27
申请号：US15027198
申请日：2014-09-24
发明人： Frank Kohlschmied , Markus Hartmann
摘要： A handheld power tool 1 has a tool socket 2 to hold a tool along a working axis 11. A motor-driven, pneumatic striking mechanism 6 has an exciter 17 which is driven by a motor 5, a striker 14 that is coupled to the exciter 17 via a pneumatic chamber 19, and an intermediate striker 22 arranged on the working axis 11 in the striking direction 12 behind the striker 14. A ventilation opening 30 connects a cavity 29 situated between the striker 14 and the intermediate striker 22 to the environment. A valve 38 that closes the ventilation opening 30 is opened when actuated by the intermediate striker 22 when the intermediate striker 22 is moved into its working position counter to the striking direction 12.
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