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公开(公告)号：US20230234205A1
公开(公告)日：2023-07-27
申请号：US18295543
申请日：2023-04-04
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
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.
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公开(公告)号：US20230228106A1
公开(公告)日：2023-07-20
申请号：US18153430
申请日：2023-01-12
发明人： Caleb Hendryx
IPC分类号： E04F21/24
CPC分类号： E04F21/242 , B25D2250/095 , B25D2250/201 , B25D2250/265
摘要： Systems and methods of controlling a vibrating screed. One vibrating screed includes a screed member, a motor configured to vibrate the screed member, and a speed sensor configured to output speed signals indicative of a motor speed. A controller is connected to the speed sensor and the motor. The controller is configured to drive the motor according to a speed command, receive the speed signals from the speed sensor, determine whether the motor speed is less than or equal to a speed threshold, and terminate, in response to the motor speed being less than or equal to the speed threshold, operation of the motor.
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公开(公告)号：US20190247991A1
公开(公告)日：2019-08-15
申请号：US16342101
申请日：2017-10-17
CPC分类号： B25D17/20 , B23Q11/0046 , B23Q17/00 , B25D16/00 , B25D2217/0057 , B25D2222/72 , B25D2250/195 , B25D2250/201 , B25D2250/221 , B25D2250/265
摘要： Control method for a dust extraction module (2) for a chiseling tool (5), including the following steps: using a fan (18) of the dust extraction module (2) to draw in an air flow Q from a certain place of a substrate (31) being worked by the tool (5), using a material detector (24) to identify the material M at the place of the substrate being worked by the tool (5), and adapting the suction power of the dust extraction module (2) as a function of the identified material M in order to set the air flow Q. The air flow Q is greater than or equal to a rated value Qo in the case of an iron-free mineral material M1, whereas the air flow Q is less than the rated value Qo in the case of a material M2 containing iron.
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公开(公告)号：US20190232478A1
公开(公告)日：2019-08-01
申请号：US16257600
申请日：2019-01-25
CPC分类号： B25D11/064 , B25D11/005 , B25D11/125 , B25D17/04 , B25D17/06 , B25D17/24 , B25D17/26 , B25D2250/095 , B25D2250/121 , B25D2250/175 , B25D2250/201 , B25D2250/221 , B25D2250/391 , B25F5/00 , B25F5/02 , H01M2/1016 , H01M2220/30 , H02K7/145 , H02P29/00
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：US20180354114A1
公开(公告)日：2018-12-13
申请号：US16061364
申请日：2016-12-08
申请人： Robert Bosch GmbH
发明人： Florian Bantle , Juergen Gairing
CPC分类号： B25D16/006 , B25B21/02 , B25B21/023 , B25D16/003 , B25D2211/061 , B25D2216/0023 , B25D2216/0038 , B25D2250/165 , B25D2250/201 , B25F5/001
摘要： A hand-held power tool includes a drive unit that has at least one gear-shift transmission which can shift at least between two different gear steps; a striking mechanism that can be activated for performing a striking mode is associated with the drive unit; a shifting unit is provided for shifting the gear-shift transmission between the at least two different gear steps and/or for activating/deactivating the striking mechanism, and a communication interface is provided for communicating with a user-actuated user guiding unit and is configured to receive shifting instructions from the user guiding unit in order for the transmission to shift in an application-specific manner between the two different gear steps and/or for the striking mechanism to be activated/deactivated.
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66.发明申请公开(公告)号：US20180099394A1
公开(公告)日：2018-04-12
申请号：US15724766
申请日：2017-10-04
申请人： MAKITA CORPORATION
CPC分类号： B25D16/006 , B25D17/043 , B25D17/24 , B25D2211/068 , B25D2216/0015 , B25D2216/0023 , B25D2216/0038 , B25D2216/0084 , B25D2222/72 , B25D2250/121 , B25D2250/201 , B25D2250/221 , B25D2250/265
摘要： An electric power tool according to one aspect of the present disclosure includes a main body, a motor, a tool holder configured to hold a tool bit, a hammer, a motion converter, a rotation transmitter, a first load detector, a second load detector, and a motor controller. The first load detector detects, based on information indicating a drive state of the motor, a load imposed from a work piece to the tool bit. The second load detector detects, based on information indicating a behavior of the main body, a load imposed from the work piece to the tool bit. The motor controller sets an upper limit of rotational speed of the motor to a predetermined no-load rotational speed in response to no-load on the tool bit being detected by both the first load detector and the second load detector.
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公开(公告)号：US20170246736A1
公开(公告)日：2017-08-31
申请号：US15523354
申请日：2015-09-29
发明人： Atsuyuki KIKUCHI
CPC分类号： B25D16/00 , B25D11/005 , B25D11/04 , B25D2216/0015 , B25D2216/0023 , B25D2250/201 , B25D2250/221
摘要： Provided is an impact tool which can perform control in accordance with working situations. The impact tool converts a torque of a brushless motor into a striking force and applies it to a tip tool. The impact tool includes: a motor control unit which makes detection about whether the tip tool is pressed against an object during the rotation of the brushless motor; and a motor control unit which performs speed increase control for increasing the rotational speed of the brushless motor when a state of pressing the tip tool against the object has been detected continuously for a predetermined time.
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公开(公告)号：US20160129576A1
公开(公告)日：2016-05-12
申请号：US14893768
申请日：2014-04-25
CPC分类号： B25D11/00 , B25D11/125 , B25D16/006 , B25D17/11 , B25D17/24 , B25D2250/201 , B25D2250/221
摘要： An impact tool capable of improving durability of tool components and capable of reducing noise and vibration is provided. The impact tool includes a housing, a motor, a motion converting portion, an output portion, a power supply portion, a load detecting portion, and a control portion. The motor is disposed in the housing. The motion converting portion is configured to convert a rotating motion of the motor into a reciprocating motion. The output portion is configured to output the reciprocating motion of the motion converting portion as an impact force. The power supply portion is configured to supply a driving power to the motor. The load detecting portion is configured to detect a load imposed on the motor. The control portion is configured to control the power supply portion to increase the driving power supplied to the motor during a prescribed period when the load detected by the load detecting portion is larger than a prescribed value.
摘要翻译： 提供了能够提高工具部件的耐久性并且能够降低噪音和振动的冲击工具。 冲击工具包括壳体，马达，运动转换部分，输出部分，电源部分，负载检测部分和控制部分。 马达设置在外壳中。 运动转换部被配置为将马达的旋转运动转换成往复运动。 输出部被配置为输出作为冲击力的运动转换部的往复运动。 电源部被配置为向电动机提供驱动电力。 负载检测部被配置为检测施加在电动机上的负载。 控制部构成为，在由负载检测部检测出的负载大于规定值的规定期间内，控制供电部增加供给电动机的驱动电力。
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公开(公告)号：US08272452B2
公开(公告)日：2012-09-25
申请号：US12602870
申请日：2008-05-23
IPC分类号： B25D11/04
CPC分类号： B25D11/005 , B25D2211/061 , B25D2250/201 , B25D2250/221
摘要： A hammering tool includes, within its tool main body, a piston which reciprocates by using a motor as its drive force, a hammering member which carries out its hammering operation in linking with the reciprocating motion of the piston, and an intermediate member which transmits a hammering force of the hammering member to a top end tool mounted on the top end of the tool main body. The tool main body further includes a measuring device which measures a hammering state of the hammering member and a control device which controls the number of rotations of the motor. The control device, according to measurement results of the measuring device, determines the limit number of times of hammering where the hammering member becomes unable to follow the reciprocating motion of the piston, and thus controls the number of rotations of the motor.
摘要翻译： 锤击工具在其工具主体内包括通过使用电动机作为其驱动力往复运动的活塞，与活塞的往复运动连动的锤击操作的锤击构件和传递 锤击构件对安装在工具主体顶端上的顶端工具的锤击力。 工具主体还包括测量锤击构件的锤击状态的测量装置和控制马达的转数的控制装置。 根据测量装置的测量结果，控制装置确定锤击部件不能跟随活塞的往复运动的限制次数，从而控制电动机的转数。
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公开(公告)号：US07762347B2
公开(公告)日：2010-07-27
申请号：US12188729
申请日：2008-08-08
申请人： Donald J. Glaser , Lon C. Tidwell
发明人： Donald J. Glaser , Lon C. Tidwell
IPC分类号： B25D9/14
CPC分类号： B25D9/16 , B25D9/26 , B25D2216/0015 , B25D2250/121 , B25D2250/181 , B25D2250/201 , B44B5/00
摘要： An improved impact power tool for carving and engraving an article comprises an air delivery system operable to communicate with a pressurized air source; a drive assembly operable to receive air from the pressurized air source via the air delivery system; a hand held device in driven communication with the drive assembly; and a housing for storage of the air delivery system and drive assembly. The tool includes an improved valve design, a throttle bias valve, and an air storage tank housed within the housing, and an improved housing construction. The improved valve design and air storage tank enable greater stroke speeds of a work tool over a wider power range while also improving the crispness and speed of the impact reaction time over the entire range. The throttle bias valve is in communication with an additional exhaust path, such that the bias valve allows improved control of the hand held device and improved operation over a wider range of air pressures.
摘要翻译： 用于雕刻和雕刻物品的改进的冲击动力工具包括可操作以与加压空气源连通的空气输送系统; 驱动组件，可操作以经由空气输送系统从加压空气源接收空气; 与驱动组件驱动连通的手持装置; 以及用于存储空气输送系统和驱动组件的壳体。 该工具包括改进的阀设计，节气门偏压阀和容纳在壳体内的储气罐，以及改进的壳体结构。 改进的阀门设计和储气罐能够在更宽的功率范围内提高作业工具的冲程速度，同时还可提高整个范围内冲击反应时间的脆性和速度。 节气门偏压阀与另外的排气通道连通，使得偏压阀允许改进手持式装置的控制并且在更宽的空气压力范围内改善操作。
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