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公开(公告)号:JP2011104736A
公开(公告)日:2011-06-02
申请号:JP2009263869
申请日:2009-11-19
Applicant: Makita Corp , 株式会社マキタ
Inventor: KASUYA YOSHIHIRO , FURUSAWA MASANORI , TAKEUCHI HAJIME , WATANABE MASAHIRO
CPC classification number: B25D17/043 , B25D11/005 , B25D2211/068 , B25D2250/101 , B25D2250/201 , B25D2250/205 , B25D2250/221 , B25F5/00
Abstract: PROBLEM TO BE SOLVED: To provide technology effective for detecting a plurality of different loading states regarding existence and size of force applied to a tip tool in a hand-held tool. SOLUTION: In the hand-held tool 101 for performing predetermined machining work while pressing the tip tool 119 provided at a distal end area of a tool body 103 to a workpiece, the plurality of different loading states regarding the existence and size of the load applied to the tip tool 119 is detected by a plurality of different kinds of detection means 161. The hand-held tool 101 includes at least one of an informing means 171 for informing the loading state based on the detection result by the plurality of detection means 161 and a drive control device 135 for performing drive control of the tip tool 119 based on the detection result. COPYRIGHT: (C)2011,JPO&INPIT
Abstract translation: 要解决的问题:提供有效的技术来检测关于施加到手持工具中的尖端工具的力的存在和尺寸的多个不同的加载状态。 解决方案:在用于在设置在工具主体103的远端区域的刀头工具119对工件进行加工的同时执行预定加工工作的手持工具101中,关于工件的存在和尺寸的多个不同的加载状态 施加到尖端工具119的负载由多种不同种类的检测装置161检测。手持工具101包括至少一个通知装置171,用于根据多个检测装置161的检测结果来通知装载状态 检测装置161和驱动控制装置135,用于根据检测结果执行尖端工具119的驱动控制。 版权所有(C)2011,JPO&INPIT
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公开(公告)号:JP2009184105A
公开(公告)日:2009-08-20
申请号:JP2009020476
申请日:2009-01-30
Applicant: Black & Decker Inc , ブラック アンド デッカー インクBlack & Decker Inc.
Inventor: GUMPERT RENE
CPC classification number: B25D11/00 , B25D2250/201 , B25D2250/221 , G01H1/003
Abstract: PROBLEM TO BE SOLVED: To provide a portable power tool having a means for automatically determining and controlling a rotation speed of a motor during operation. SOLUTION: A hammer drill comprising a main body 2 storing the electric motor 4 for driving an output part 6 of the drill is disclosed. A vibration transducer 12 detects vibrations generated by the motor 4 and produces a vibration signal dependent upon the detected vibrations. An electronic module 10 includes a controller 10a for controlling the rotational speed of the motor and a signal processor 10b for receiving the vibration signal from the vibration transducer 12, determining the rotational speed of the motor 4 based on the vibration signal and providing an output signal to the controller 10a to cause the controller 10a to control the rotational speed of the motor. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题:提供一种便携式电动工具,其具有用于在运行期间自动确定和控制电动机的转速的装置。 解决方案:公开了一种锤钻,其包括存储用于驱动钻头的输出部分6的电动机4的主体2。 振动传感器12检测由电动机4产生的振动,并产生取决于检测到的振动的振动信号。 电子模块10包括用于控制电动机的转速的控制器10a和用于从振动传感器12接收振动信号的信号处理器10b,基于振动信号确定电动机4的转速并提供输出信号 到控制器10a使控制器10a控制电动机的转速。 版权所有(C)2009,JPO&INPIT
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公开(公告)号:US11904448B2
公开(公告)日:2024-02-20
申请号:US17760675
申请日:2020-10-07
Applicant: Hilti Aktiengesellschaft
Inventor: Dario Bralla , Albert Binder , Donato Clausi , Michael Wierer , Serhey Khandozhko , Nikolaus Hannoschoeck
CPC classification number: B25D11/125 , B25D11/005 , B25D2250/095 , B25D2250/131 , B25D2250/201 , B25D2250/221
Abstract: In a control method for a hand-held power tool, a striking mechanism is driven with an electric motor, wherein an exciter piston of the pneumatic striking mechanism is driven periodically by the electric motor and a striking piston of the striking mechanism is coupled to the exciter piston via a pneumatic chamber. The method includes detecting the acceleration of a machine housing along a striking direction of the striking piston in different phases of the movement of the exciter piston; and controlling a rotational speed of an electric motor according to the detected acceleration in the different phases.
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公开(公告)号:US11897110B2
公开(公告)日:2024-02-13
申请号:US16177612
申请日:2018-11-01
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor: Maxwell L. Merget , Jingyuan Liang , Michael R. Sande , Michael Halverson , Ian Duncan , Nicholas C. Mantych , Alex Huber
CPC classification number: 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
Abstract: 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.
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公开(公告)号:US11787030B2
公开(公告)日:2023-10-17
申请号:US17418988
申请日:2019-12-30
Applicant: Robert Bosch GmbH
Inventor: Bernd Wirnitzer , Joerg Hildebrandt , Andre Kurz , Erwin Strassburger , Andreas Schlegel , Patrick Heinen
CPC classification number: B25D11/005 , B25D16/006 , B25D2250/131 , B25D2250/201 , B25D2250/221
Abstract: A power tool includes a housing in which a drive unit is arranged, and a tool holder for the detachable holding of a tool insert. The tool insert is configured to be driven percussively and/or rotationally. A sensor unit is configured to detect at least one movement variable, and electronics are configured to control or regulate the power tool. The electronics have a percussion detection unit configured to determine a percussion mode based on at least one movement variable and/or a rotation detection unit configured to determine a rotation of the housing. The electronics control the drive unit based on the determined percussion mode and/or the determined rotation of the housing. The electronics have at least two parameter sets for the percussion detection unit and/or at least two parameter sets for the rotation detection unit. The electronics are configured to select one of the at least two parameter sets.
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公开(公告)号:US11731256B2
公开(公告)日:2023-08-22
申请号:US16637279
申请日:2018-08-31
Applicant: Koki Holdings Co., Ltd.
Inventor: Hideki Yamada , Hideyuki Hashimoto , Yuta Noguchi
CPC classification number: B25D16/006 , B25D17/00 , B25D2216/0084 , B25D2250/095 , B25D2250/201 , B25D2250/221 , B25D2250/265
Abstract: Provided is an electric tool with which work efficiency can be improved. A controller of an electric tool can execute: a first control, whereby during a non-operating state after a motor has started up and before a tip tool is set to be in an operating state, the motor is driven at a slow idling rotation speed, and when the tip tool is set to be in the operating state, the motor is driven at a normal rotation speed which is higher than the slow idling rotation speed; and a second control, whereby in a case where a trigger switch has been turned off in a state where the motor is being driven at the normal rotation speed and the trigger switch is thereafter turned on again under a prescribed condition, the motor is driven at the normal rotation speed regardless of the state of the tip tool.
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公开(公告)号:US20180304453A1
公开(公告)日:2018-10-25
申请号:US15769780
申请日:2016-11-15
Applicant: Hilti Aktiengesellschaft
Inventor: Roland SCHAER , Thomas KINKELDEI , Peter HRICKO , Manuel GUT , Michael WIERER
CPC classification number: B25F5/001 , B23B45/02 , B25D11/00 , B25D2211/068 , B25D2250/201 , B25D2250/221 , B25F5/00
Abstract: A control method for a power tool for rotary tools provides the following: A tool holder is rotated continuously in a forward direction about a working axis by a rotary drive when an operating switch is actuated. The continuous rotation in the forward direction is interrupted by a protective process when a protective device senses blocking of the tool holder. During the protective process, one or more cycles are executed, in which the rotary drive is actuated successively in accordance with an unimpeded rotary movement in a reverse direction and in accordance with an unimpeded rotary movement in the forward direction. The rotary drive is supplied with a first amount of energy for the rotary movement in the reverse direction and with a second amount of energy for the rotary movement in the forward direction. The first amount of energy is smaller than the second amount of energy.
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公开(公告)号:US20180099399A1
公开(公告)日:2018-04-12
申请号:US15720451
申请日:2017-09-29
Applicant: MAKITA CORPORATION
Inventor: Hikaru SUNABE , Hirokatsu YAMAMOTO , Ryo UMEMOTO
CPC classification number: B25F5/02 , B25D16/00 , B25D17/04 , B25D2211/068 , B25D2216/0023 , B25D2250/165 , B25D2250/201 , B25D2250/221 , B25F5/006
Abstract: An electric power tool in one aspect of the present disclosure includes a housing; a motor; an output shaft; a rotation transmission; a motor controller; and a twisted-motion detector. The twisted-motion detector is disposed in the housing independently from the motor controller. The twisted-motion detector detects a twisted-motion of the housing in the circumferential direction of the output shaft and outputs a result of the detection to the motor controller.
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公开(公告)号:US20170361447A1
公开(公告)日:2017-12-21
申请号:US15532597
申请日:2015-12-01
Applicant: Hilti Aktiengesellschaft
Inventor: Rainer ONTL , Damir CEHAJIC , Christoph DIEING
CPC classification number: B25D17/24 , B25D2211/068 , B25D2216/0038 , B25D2217/0092 , B25D2250/005 , B25D2250/175 , B25D2250/201 , B25D2250/221 , F16F7/104
Abstract: The hand-held power tool has a tool holder (2) for holding a tool (4) along a working axis (12). A hammer mechanism (6) has a striker (15) that is moved periodically along the working axis at an impact rate. A drive control (18) of the hammer mechanism (6) sets the impact rate to a set point value. A vibration absorber (19) has an oscillator (21) that moves along the working axis (12) about a resting position and one or multiple springs (20) that drive the oscillator (21) back into the resting position. A calibration phase comprises the following steps: detection of an acceleration using the acceleration sensor (24); determination of a minimum of the acceleration by varying the impact rate in a range of between 90% and 110% of the set point value; and adjusting the set point to the impact rate associated with the ascertained minimum.
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公开(公告)号:US09815160B2
公开(公告)日:2017-11-14
申请号:US14403576
申请日:2013-04-24
Applicant: Robert Bosch GmbH
Inventor: Rainer Nitsche , Matthias Tauber , Antoine Vandamme , Gerd Schlesak , Helge Sprenger , Carsten Diem , Wolfgang Fischer , Haris Hamedovic , Juergen Lennartz , Christian Bertsch , Mario Eduardo Vega Zavala , Achim Duesselberg
CPC classification number: B23Q5/033 , B25D11/00 , B25D11/005 , B25D16/006 , B25D17/00 , B25D2211/003 , B25D2211/068 , B25D2250/035 , B25D2250/131 , B25D2250/145 , B25D2250/201 , B25D2250/221
Abstract: A percussion unit for a rotary hammer and/or percussion hammer includes a control unit that is configured for open-loop and/or closed loop control of a pneumatic percussion mechanism. In at least one operating state in which the control unit changes from an idle mode to a percussion mode, the control unit is configured to adjust at least one operating parameter temporarily to a starting value.
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