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公开(公告)号：US20240316743A1
公开(公告)日：2024-09-26
申请号：US18579708
申请日：2022-07-20
发明人： Stefan RINGLER , Ehsan MAHDIZADEH
IPC分类号： B25D17/04
CPC分类号： B25D17/043 , B25D2250/201 , B25D2250/221 , B25D2250/265
摘要： A method for the open-loop and closed-loop control of a power tool, in particular a chipping hammer, containing a drive, a control device, a sensor, a transmission and a handle apparatus. The handle apparatus contains a lever element with a signal transmitter and pivotable relative to the sensor. A first and second position of the signal transmitter are sensed by the sensor, wherein the distance between the first and second position corresponds to a first distance. The difference between a maximum distance of the lever element and the first determined distance is determined. A first rotational speed for the drive is set when the determined difference between the maximum distance of the lever element and the first determined distance corresponds at least to a first predetermined threshold value. A second rotational speed for the drive is set after the second position has been reached and after a predetermined period of time has elapsed.
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公开(公告)号：US20240100674A1
公开(公告)日：2024-03-28
申请号：US17768563
申请日：2020-11-04
发明人： Stefan RINGLER , Ehsan MAHDIZADEH , Steffen GEIGER
IPC分类号： B25D17/04
CPC分类号： B25D17/043 , B25D2250/201 , 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：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：US20190250206A1
公开(公告)日：2019-08-15
申请号：US16320100
申请日：2017-07-28
发明人： Yuta NOGUCHI , Yuki HORIE , Kazuhiko FUNABASHI
CPC分类号： G01R31/2825 , B25D16/006 , B25D2216/0084 , B25D2250/121 , B25D2250/265 , B25F5/00 , G06F16/9035 , G06K17/00 , G06Q10/20
摘要： The failure diagnosis system is provided with an electric tool 1, and a diagnosis device 100 that can be connected with the electric tool 1. The diagnosis device 100 reads the usage history information of the electric tool 1 from the electric tool 1 to which the diagnosis device 100 has been connected, estimates a failure part of the electric tool 1 on the basis of the usage history information, and reports information indicating the failure part. The usage history information includes at least one of the motor operation time, the number of operations of a motor driving switch, the power supply voltage, a motor current, the motor temperature, the temperature of a motor driving circuit, whether or not the motor can be driven, the presence or absence of a high-temperature abnormality, the presence or absence of an overcurrent abnormality, and the presence or absence of an overvoltage abnormality.
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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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7.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：US5320187A
公开(公告)日：1994-06-14
申请号：US993417
申请日：1992-12-21
申请人： Jack Pressley , John Knott , David M. Young , Pradip K. Paul , Richard Wilusz
发明人： Jack Pressley , John Knott , David M. Young , Pradip K. Paul , Richard Wilusz
CPC分类号： B25D17/04 , B25D17/08 , B25D2250/265
摘要： The invention is a safety mechanism for an air-powered tool. The mechanism senses the position of the tool's implement retainer and disables the air flow to the tool's motor if the retainer is not in its locked position. The mechanism employs a pushrod that has one end adapted to contact a rear surface of the retainer when the retainer is in its lock position. The other end of the pushrod is adapted to contact a spring-biased ball-type check valve located within the air inlet to the tool's motor. When the retainer is removed from the tool, the pushrod moves forwardly under the urging of the valve and at the same time allows the valve to move to its closed position to thereby prevent any flow of pressurized air to the motor.
摘要翻译： 本发明是用于空气动力工具的安全机构。 如果保持器不在其锁定位置，该机构将感测工具的工具保持器的位置，并禁止气体流向工具的电机。 该机构采用推杆，当保持器处于其锁定位置时，该推杆的一端适于接触保持器的后表面。 推杆的另一端适于接触位于工具电机的进气口内的弹簧偏压球形止回阀。 当保持器从工具移除时，推杆在阀的推动下向前移动，并且同时允许阀移动到其关闭位置，从而防止加压空气流到马达。
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公开(公告)号：US20240109172A1
公开(公告)日：2024-04-04
申请号：US17768536
申请日：2020-11-04
发明人： Stefan RINGLER , Ehsan MAHDIZADEH
CPC分类号： B25D17/043 , H03K17/97 , B25D2250/221 , B25D2250/265 , H03K2017/9713
摘要： Method for the open-loop and closed-loop control of a power tool, having a drive, a control device, a sensor device, a transmission device and a handle apparatus, wherein the handle apparatus contains a lever element with a signal transmitter, the lever element being pivotable relative to the sensor device. The method involves the method steps of: sensing a first and second position of the signal transmitter; determining a distance covered from the first position to the second position; and setting the drive from a deactivation mode into an activation mode when the distance reaches a first threshold value. A handle apparatus on a power tool is also provided.
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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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