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公开(公告)号：US10343268B2
公开(公告)日：2019-07-09
申请号：US14406045
申请日：2013-06-04
申请人： MAKITA CORPORATION
摘要： A rotary impact tool according to one aspect of the present invention includes a motor, an impact mechanism, a drive unit, an impact detection unit, and a control unit. The control unit reduces a driving force for the motor caused by the drive unit when a count of impacts detected by the impact detection unit has reached a determination count set in advance, which is a value greater than one.
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公开(公告)号：US10099353B2
公开(公告)日：2018-10-16
申请号：US15323176
申请日：2015-04-08
申请人： MAKITA CORPORATION
IPC分类号： B25B21/00 , B25B23/14 , B25F5/00 , B25F5/02 , B25B23/147
摘要： An operation switch sends an ON signal to a control processor indicating the operation switch is triggered by a user. A magnetic sensor sends a sensor signal to the control processor based on a displacement of a chip rod in a rearward direction. In the case where the sensor signal has not yet been sent, the control processor performs a control in a first mode where a brushless DC motor is not driven. In the case where sensor signal is sent, control processor performs a control in a second mode wherein the brushless DC motor is driven. An output in the first mode is lower than in the second mode. Because of this manner of construction, even if an ON input is triggered and held by the user, electric power is conserved while the operation switch is switched on and a hexagonal nut is not fastened, improving power consumption efficiency.
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公开(公告)号：US11539314B2
公开(公告)日：2022-12-27
申请号：US16462675
申请日：2017-11-22
申请人： MAKITA CORPORATION
发明人： Takeshi Nishimiya , Hidekazu Suda
IPC分类号： H02P6/16 , H02P6/12 , H02P6/24 , B23D45/16 , B23D47/12 , B23D59/00 , B23Q11/00 , B27G19/04 , H02P6/30
摘要： An electric working machine in one aspect of the present disclosure includes: a motor; a driver to drive the motor; a first control circuit; and a second control circuit. The first control circuit controls the driver such that the motor rotates in a set rotation direction. The second control circuit is provided separately from the first control circuit. The second control circuit detects a rotation direction of the motor and performs an abnormality handling process to stop rotation of the motor in response to a situation where the detected rotation direction is reverse to the set rotation direction.
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公开(公告)号：US20150135907A1
公开(公告)日：2015-05-21
申请号：US14404261
申请日：2013-05-20
申请人： MAKITA CORPORATION
CPC分类号： B25B21/008 , B23Q5/048 , B23Q15/12 , B25B21/02 , B25B23/1475
摘要： A power tool of one aspect for tightening a screw to a tightening-target-object is provided with a motor as a drive force. A motor controlling device controls the motor so as to make rotational frequency of the motor in accordance with an input operation received by an input-operation receiving unit. A first setting unit sets a maximum rotational frequency to a given first maximum rotational frequency when the motor is initiated. If the power tool clears a given condition for increasing rotational frequency after the motor is initiated, a second setting unit sets the maximum rotational frequency to a given second maximum rotational frequency that is larger than the first maximum rotational frequency.
摘要翻译： 将用于将螺钉拧紧到紧固目标物体的一个方面的电动工具设置有作为驱动力的电动机。 电动机控制装置控制电动机，以便根据由输入操作接收单元接收到的输入操作使电动机的转速变化。 当电动机起动时，第一设定单元将最大转动频率设定为给定的第一最大转速。 如果电动工具在电动机起动之后清除用于增加转速的给定条件，则第二设定单元将最大转动频率设定为大于第一最大转速的给定第二最大转速。
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公开(公告)号：US20150144365A1
公开(公告)日：2015-05-28
申请号：US14406045
申请日：2013-06-04
申请人： MAKITA CORPORATION
CPC分类号： B25B23/1405 , B25B21/02
摘要： A rotary impact tool according to one aspect of the present invention includes a motor, an impact mechanism, a drive unit, an impact detection unit, and a control unit. The control unit reduces a driving force for the motor caused by the drive unit when a count of impacts detected by the impact detection unit has reached a determination count set in advance, which is a value greater than one.
摘要翻译： 根据本发明的一个方面的旋转冲击工具包括马达，冲击机构，驱动单元，冲击检测单元和控制单元。 当冲击检测单元检测到的冲击计数达到预先设定的大于1的确定计数时，控制单元减小由驱动单元引起的电动机的驱动力。
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6.发明授权公开(公告)号：US10883660B2
公开(公告)日：2021-01-05
申请号：US15660372
申请日：2017-07-26
申请人： MAKITA CORPORATION
摘要： An electric power tool in one aspect of the present disclosure comprises a main body, a motor, a driver, a detector, and a kickback determiner. The kickback determiner determines that the main body is kicked back from a workpiece when an attitude change amount of the main body detected by the detector exceeds a preset kickback determination threshold during driving of the motor by the driver.
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公开(公告)号：US10779468B2
公开(公告)日：2020-09-22
申请号：US15461777
申请日：2017-03-17
申请人： MAKITA CORPORATION
摘要： A working machine according to one aspect of the present disclosure comprises an operation rod, a leading end unit, a rear end unit, and a drive permitter. The operation rod is configured to be transformable between an extended state and a non-extended state. The leading end unit is provided at one end of the operation rod. The leading end unit comprises a motor configured to drive a working element. The rear end unit is provided at the other end of the operation rod. The rear end unit comprises a controller configured to control driving of the motor. The drive permitter is configured to permit driving of the motor when the operation rod is in the extended state and not to permit driving of the motor when the operation rod is in the non-extended state.
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公开(公告)号：US09621009B2
公开(公告)日：2017-04-11
申请号：US14321157
申请日：2014-07-01
申请人： MAKITA CORPORATION
摘要： An electric power tool, which uses a DC brushless motor as a drive source and controls the DC brushless motor by a switching element, can include a tubular housing main body portion accommodating the DC brushless motor, and a grip portion protruding from a side portion of the housing main body portion. The switching element is arranged inside the grip portion, and is spaced apart from an electronic circuit board for an electronic component for operating the switching element.
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公开(公告)号：US20150158157A1
公开(公告)日：2015-06-11
申请号：US14405285
申请日：2013-05-31
申请人： MAKITA CORPORATION
CPC分类号： B25B23/0064 , B25B21/00
摘要： An electric power tool to tighten a screw while drilling a hole with the screw in a tightening-target-object includes a motor as a drive source. A motor control unit controls the motor such that the rotation number of the motor is a rotation number according to specifics of an operation input received by an operation receiving unit with a preset maximum rotation number as an upper limit. At a start-up of the motor, the maximum rotation number is set to a first maximum rotation number. When it is detected that a hole has been drilled in the tightening-target-object with the screw after the start-up of the motor, the maximum rotation number is set to a second maximum rotation number lower than the first maximum rotation number. The second maximum rotation number is set according to a material thickness so as to become lower as the material thickness is smaller.
摘要翻译： 用于在紧固目标物体中用螺钉钻孔时拧紧螺钉的电动工具包括电动机作为驱动源。 电动机控制单元控制电动机，使得电动机的转数根据由预设的最大转数作为上限的操作接收单元所接收的操作输入的细节而为旋转数。 在马达启动时，最大转数被设定为第一最大转数。 当检测到在电动机起动之后用螺钉在紧固目标物体中钻孔时，最大转数被设定为低于第一最大转数的第二最大转数。 第二最大转数根据材料厚度设定为随着材料厚度变小而变低。
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