WO2018090378A1 - 用于快转扳手的马达的保护方法及其快转扳手 - Google Patents

用于快转扳手的马达的保护方法及其快转扳手 Download PDF

Info

Publication number
WO2018090378A1
WO2018090378A1 PCT/CN2016/106636 CN2016106636W WO2018090378A1 WO 2018090378 A1 WO2018090378 A1 WO 2018090378A1 CN 2016106636 W CN2016106636 W CN 2016106636W WO 2018090378 A1 WO2018090378 A1 WO 2018090378A1
Authority
WO
WIPO (PCT)
Prior art keywords
current value
motor
fast
controller
electrically connected
Prior art date
Application number
PCT/CN2016/106636
Other languages
English (en)
French (fr)
Inventor
胡厚飞
Original Assignee
胡厚飞
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 胡厚飞 filed Critical 胡厚飞
Priority to JP2019525960A priority Critical patent/JP6917453B2/ja
Priority to PCT/CN2016/106636 priority patent/WO2018090378A1/zh
Priority to EP16921873.2A priority patent/EP3542966A4/en
Priority to US16/461,964 priority patent/US20200269396A1/en
Priority to AU2016430120A priority patent/AU2016430120A1/en
Priority to CN201680047433.XA priority patent/CN108430703B/zh
Publication of WO2018090378A1 publication Critical patent/WO2018090378A1/zh

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B25B21/004—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose of the ratchet type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
    • B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
    • B25B13/462—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
    • B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
    • B25B23/1425—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters by electrical means

Definitions

  • the present invention relates to the field of wrenches, and more particularly to a process in which a fast-rotating wrench can be used.
  • a warning signal is issued to remind the user to stop the motor and prevent the motor from being damaged.
  • US Patent Publication No. 20080271574A1 which discloses a ratchet wrench tool that can convert a manual or electric operation mode, in an electric operation mode, an electric grip with a motor attached to a rear end of the trigger lever, and The first transmission rod is sleeved to the output shaft of the motor to transmit the output power of the output shaft to the first transmission rod, and the rod of the first transmission rod is engaged with the bayonet of the second transmission rod to be driven to the second The transmission rod is further connected to the ratchet head by the second transmission rod for electric disassembly and assembly work.
  • the sleeve of the manual grip can be sleeved to the first transmission rod of the trigger rod, so that the manual grip can be directly rotated manually, so that the manual grip can drive the sleeve joint to rotate, and then the first transmission is transmitted.
  • the transmission rod, the second transmission rod and the ratchet head are manually disassembled.
  • the aforementioned ratchet wrench tool is for taking out or positioning a work that has been loosened or to be locked in an electric or manual manner.
  • the screw in the process of taking out or positioning the screw, if the screw is encountered, When the rust or damage occurs, the work will be stuck and cannot move smoothly, and the load of the motor rises, causing the motor to overheat, causing the motor to burn and causing damage to the ratchet wrench tool.
  • the aforementioned ratchet wrench tool does not aim to stop the operation or remind the user to stop using the motor when the motor has reached a high load, which may cause damage to the motor during use, and may also increase safety concerns in use. Therefore, how to increase the protection of the motor, reduce the motor damage, and increase the safety of use are to be solved by the skilled person.
  • the present invention provides a method for protecting a motor for a fast-turning wrench.
  • a fastener is fast-rotating on a screw
  • the current value of the motor is monitored by a current sensor, and the control is performed.
  • the comparison unit compares the working current value with the set critical current value.
  • the warning device is triggered to remind the worker to stop the motor, so as to switch to the manual mode operation, Therefore, when the motor encounters a high load, the operation can be stopped immediately to achieve the effect of motor protection.
  • the present invention provides a fast-rotating wrench for operating in an electric mode or a manual mode, wherein in the electric mode, a fastener is driven by a first torque to a screw In the manual mode, the fastener is driven to be tightened or loosened relative to the screw by a second torque, and the first torque is less than the second torque.
  • the fast-rotating wrench comprises: a wrench body having a head at one end thereof And a handle portion is arranged at the opposite end, a ratchet device is arranged on the head, a ratchet device is used for driving the fastener, a drive shaft is arranged in the handle portion, and one end of the drive shaft is connected with the ratchet device; a motor is disposed on the a motor is connected to the other end of the drive shaft, a current sensor electrically connected to the motor, a current sensor for monitoring an operating current value of the motor, and a controller electrically connected to the motor and the current sensor.
  • the controller has a setting unit and a comparison unit, wherein the setting unit is configured to set a critical current value, and the comparing unit is configured to perform the working current value and the critical current value.
  • a key which is disposed in the grip portion, the key is electrically connected to the controller to activate or deactivate the motor; and a warning device is electrically connected to the controller, wherein, in the electric state, When the working current value is greater than the critical current value, an alarm is triggered to remind the worker to stop the motor, so as to switch to the manual mode.
  • the present invention further has a power supply device electrically connected to the controller and the motor.
  • the power supply device has a positive electrode and a negative electrode, and the positive electrode and the negative electrode are electrically connected to the controller and the motor.
  • the positive and negative voltages are required, and the alarm is a buzzer.
  • the output current value of the power supply device is equal to the working current value
  • the critical current value is 70% to 80 ⁇ 3 ⁇ 4 of the working current value
  • the operating current is from 1.5 amps to 6.5 amps.
  • the warning device has a first connecting leg and a second connecting leg, the first connecting leg is electrically connected to the controller, and the second connecting leg is electrically connected to the positive electrode; the controller gives the warning device a low standard The bit signal triggers the alarm, and the controller gives the warning device a high level signal that does not trigger the alarm.
  • the first connecting leg and the controller are electrically connected to a transistor, and the second connecting leg and the positive electrode are electrically connected to a first resistor, the base of the transistor and a second resistor One end of the electrical connection, the first The other end of the two resistors is electrically connected to the controller, and the collector of the transistor is electrically connected to the first connecting leg.
  • the power supply device has a power supply of 3 Coulomb to 4 Coulomb, a positive electrode of 3 volts to 12 volts, and a negative power of 0 volts.
  • the key is used to control the motor to drive the transmission shaft to rotate the needle or the reverse needle;
  • the ratchet device also has a reversing button for controlling the ratchet device to switch between forward and reverse.
  • the direction of the changeover button is different, so that the direction of rotation of the drive shaft and the ratchet device is inconsistent, the alarm is triggered.
  • the setting unit can set a low load current value
  • the comparing unit is configured to compare the low load current value with the working current value, and when the working current value is less than or equal to the low load current value, the controller Trigger an alerter.
  • the critical current value is greater than the low load current value.
  • the critical current value is 2 to 3 times the value of the low load current.
  • the controller has a counting unit, the setting unit is configured to set a continuous time, and the counting unit is configured to calculate the continuous triggering unit triggered by the alarm, and the continuous triggering unit During the interval, when the operating current value is less than the critical current value, the alarm stops triggering; the continuous day is 2 seconds to 6 seconds.
  • the present invention provides a method for protecting a motor for a fast-turning wrench, wherein the fast-rotating wrench is operated in an electric mode or a manual mode, and in the electric mode, a motor is driven by the first torque a fastener is fast on a screw; in the manual mode, the fastener is driven to be tightened or loose relative to the screw by a second torque, and the first torque is less than the second torque, and the protection method comprises the following steps: Electrically connected to a current sensor, a controller and a warning device, the current sensor is used to monitor the working current of the motor, and the controller is used to set a critical current value; during the fast rotation, the current sensor monitors the working current value of the motor And when the operating current value is greater than the critical current value, the controller triggers an alarm to remind the worker to stop the motor, so as to switch to manual mode operation.
  • the alarm triggers the same value, and the operating current value is less than the critical current value within a continuous time interval, and the alarm stops triggering.
  • the controller can set a low load current value, and when the working current value is less than or equal to the low load current value, trigger an alarm to remind the worker to stop the motor, so as to switch to manual Operate in mode.
  • the achievable effect of the invention is that: in the electric mode, when the fastener is in the process of rapid rotation, there is damage or rust on the screw, and the comparison unit compares the work. When the current value is greater than the critical current value, the controller will trigger an alarm to remind the worker to stop the motor, so that the user can switch to the manual mode operation, so that the fastener is away from the damage or rust on the screw. Thereby, when the motor is under a high load condition, the electric mode can be stopped to be changed to the manual mode to prevent the motor from being burnt and to ensure safe use.
  • the counting unit is also triggered. If the damage or the rust on the screw is not large or the fastener is only stuck in the crucible, in the continuous day, The fastener has been damaged from the screw, rust or jam.
  • the comparison unit compares the working current value to less than the critical current value. The alarm will stop triggering and the user can continue to drive with the first torque. The piece is fast turned on the screw, thereby providing convenience in use.
  • the comparing unit determines that the operating current value of the motor is less than or equal to the low load current value, and the controller triggers the warning device to inform the user of the current steering and ratcheting of the motor.
  • the rotation direction of the device is inconsistent, reminding the user to make a steering switching action or stop the operation, thereby achieving double protection and foolproof effect.
  • FIG. 1 is an external perspective view of the present invention
  • FIG. 3 is a flow chart (1) of the present invention, showing that the operating current value is greater than the critical current value triggering warning device;
  • FIG. 4 is a flow chart (2) of the present invention, showing that the warning device is triggered after continuous operation. Whether the inter-working current value is less than the critical current value;
  • FIG. 5 is a flow chart (3) of the present invention, showing whether the direction key is consistent with the key steering of the ⁇ key;
  • FIG. 6 is a schematic circuit diagram (1) of the present invention, showing the electrical connection relationship between the controller, the motor and the alarm;
  • FIG. 7 is a circuit diagram (2) of the present invention, showing the power between the controller and the alarm Connect the transistor.
  • the present invention provides a fast-rotating wrench for operating in an electric mode or a manual mode, wherein in the electric mode, a first torque is driven.
  • the fastener rotates fast on a screw; in the manual mode, the fastener is driven to be tightened or loose relative to the screw by a second torque, the first torque is less than the second torque, and the longitudinal length of the screw is greater than The height of the firmware is more than 5 times.
  • the screw is a bolt and the fastener is a nut.
  • Fast-turning wrenches include:
  • a wrench body 10 is provided with a head 11 at one end, a hollow handle portion 12 at the opposite end, and a ratchet device 13 for rotating the head portion 11.
  • the ratchet device 13 is used to connect the fasteners to drive The fastener is rotated on the screw, and a drive shaft 14 is disposed inside the grip portion 12, and one end of the drive shaft 14 is coupled to the ratchet device 13.
  • the ratchet device 13 has a reversing button 131, and the reversing button 131 is pivotally disposed on the head portion 11, wherein the reversing button 131 can be rotated in the forward and reverse directions to control the ratchet device 13 to generate a slanting direction or a reverse direction. Needle direction rotation
  • a motor 20 is disposed in the handle portion 12, and the motor 20 is coupled to the other end of the drive shaft 14.
  • the motor 20 is configured to drive the drive shaft 14 to rotate, and the ratchet device 13 is coupled to drive the fastener relative to each other. Fast forward on the screw.
  • the motor 20 is a direct current motor.
  • the motor 20 is electrically connected to a current sensor 30, the current sensor 30 is an analog signal, and the current sensor 30 is used to monitor an operating current value 21 of the motor 20, wherein, in the present invention, the operating current value of the motor 20 is 21 It is from 1.5 amps to 6.5 amps.
  • a controller 40 is electrically connected to the motor 20 and the current sensor 30.
  • the controller 40 has a setting unit 41 and a comparison unit 42 for setting a critical current value 411 and a The low load current value 41 2, the comparison unit 42 is configured to compare the operating current value 21 with the critical current value 411 or the low load current value 412, wherein the critical current value 411 is 70% to 80% of the operating current value 21, critical The current value 411 is greater than the low load current value 412.
  • the critical current value 411 is 2 to 3 times the low load current value 412, and the low load current value 412 is less than 0.6 amps or approaches 0 amps.
  • the controller 40 has a counting unit 43 for setting a continuous time 413, and the counting unit 43 is configured to calculate the continuous time 413, wherein the continuous time 413 is 2 seconds.
  • the clock is up to 6 seconds, and in the present invention, the continuous day 413 is 3 seconds to 5 seconds.
  • a power supply device 50 is electrically connected to the motor 20 and the controller 40.
  • the power supply device 50 has a positive electrode 51 and a negative electrode 52.
  • the positive electrode 51 and the negative electrode 52 are electrically connected to the motor 20 and controlled.
  • the power supply device 50 is of a rechargeable type or a battery type. In the present invention, the power supply device 50 is a rechargeable battery, the power supply device 50 is powered by 3 Coulomb to 4 Coulomb, and the positive electrode 51 is 3 volts to 12 volts, and the negative electrode 52 is 0 volts.
  • a warning device 60 is electrically connected to the controller 40.
  • the alarm device 60 is at least one of a buzzer, a display lamp or a vibrator, or a combination of any two or more.
  • the warning device 60 For the buzzer.
  • the warning device 60 has a first connecting leg 61 and a second connecting leg 62.
  • the first connecting leg 61 is electrically connected to the controller 40, and the second connecting leg 62 is electrically connected to the positive electrode 51.
  • the controller 40 when the controller 40 gives the warning device 60 a low level signal ⁇ , the controller 40 has a potential difference between the warning device 60, thus triggering the warning device 60, and when the controller 40 gives the warning device 60 a high level signal ⁇ There is no potential difference between the controller 40 and the alarm 60, and thus the alarm 60 is not triggered.
  • the first connection leg 61 and the controller 40 are electrically connected to a transistor 70, and the second connection leg 62 and the positive electrode 51 are electrically connected.
  • the first resistor 71 is electrically connected to the first resistor 71.
  • the base of the transistor 70 is electrically connected to one end of the second resistor 72.
  • the other end of the second resistor 72 is electrically connected to the controller 40.
  • the collector of the transistor 70 is coupled.
  • the first connecting leg 61 is electrically connected.
  • the transistor 70 is an NPN transistor.
  • a key 80 is disposed on the outer side of the handle portion 12, and the key 80 is electrically connected to the controller 40 for starting or shutting down the operation of the motor 20.
  • the key 80 is The 3-stage rocker is turned off, and the key 80 is switched to the left and right sides for controlling the motor 20 to drive the drive shaft 14 to rotate by a smooth or reverse needle, and the key 80 is switched to the middle to stop the operation of the motor 20.
  • the switching key 80 and the switching key 131 are switched in different directions, the rotation direction of the transmission shaft 14 and the ratchet device 13 is inconsistent, in other words, if the key 80 is switched to one.
  • the motor 20 On the side, and the motor 20 is driven to drive the transmission shaft 14 for smooth rotation, and the reverse button 131 is switched to reverse rotation, so that the ratchet device 13 rotates in the direction of the reverse needle. Thereafter, the ratchet device 13 generates idling, and the motor 20 There will be no load, and the operating current value 21 of the motor 20 will be transmitted to the comparison unit 42, which compares the operating current value 21 with the low load current value 412 when the operating current value 21 is less than or equal to the low load current.
  • the controller 40 triggers the warning device 60 to inform the user that the current steering of the motor 20 does not coincide with the direction of rotation of the ratchet device 13, prompting the user to perform a steering switching operation or stopping the operation, thereby achieving double protection and foolproofness. effect.
  • the user can control the invention by using an electric mode or a manual mode, the current sensor 30 is used to monitor the working current value 21, and the operating current value 21 is transmitted to the control by an analog signal.
  • the comparison unit 42 of the device 40 compares with the critical current value 411; in the electric state, the ⁇ key 80 controls the motor 20 to drive the transmission shaft 14 to rotate, and uses the ratchet device 13 to drive the fastener to rotate fast relative to the screw member, and quickly tightens
  • the firmware screw is tightened to the positioning point, or the fastener is screwed off the screw. When there is damage or rust on the screw during the rapid rotation, the fastener will be stuck.
  • the motor 20 will continue to increase the operating current value 21 to drive the drive shaft 14 to rotate.
  • the controller 40 converts the analog signal into A/D.
  • the digital signal is sent to the alarm 60 low level signal to trigger the alarm 60 to remind the worker to stop the motor 20, and can be switched to the manual mode operation, and the second torque is used to trigger the fast rotation of the present invention.
  • Wrench Depart from the fastener damage or rust on the screw member, thereby to prevent the burnout of the motor 20 to ensure safe use.
  • the same unit triggered by the warning device 60 also triggers the counting unit 43, if the damage or rust on the screw is not large or the fastener is only one ⁇ stuck, in the continuous turn 413, the fastener has been damaged from the snail, rust or jam, the comparison unit 42 compares the working current value 21 has been less than the critical current value 411, the warning device 60 The trigger will stop and the user can continue to drive the fastener to quickly rotate on the screw with the first torque, thereby providing ease of use.
  • the motor 20 in order to prevent the steering of the motor 20 from being inconsistent with the steering of the ratchet device 13, the motor 20 will be different when the steering key 80 is switched differently from the steering button 131.
  • the comparison unit 42 determines that the operating current value 21 is less than or equal to the low load current value 412, and the controller 40 triggers the warning device 60 to inform the user that the current steering of the motor 20 is inconsistent with the rotation direction of the ratchet device 13, The user switches to a unified steering or stops the operation, thereby achieving double protection and foolproof effects.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

一种快转扳手，用以于一电动模式或一手动模式下操作，快转扳手包括：一扳手本体（10），该扳手本体（10）设有一头部（11）及一握柄部（12），头部（11）转动设有一棘轮装置（13）；一马达（20），该马达（20）设于握柄部（12）；一电流传感器（30），该电流传感器（30）与马达（20）电性连接且用以监测马达（20）的一工作电流值（21）；一控制器（40），该控制器（40）与电流传感器（30）电性连接，并具有一设定单元（41）及一比较单元（42），设定单元（41）用以设定一临界电流值（411），比较单元（42）用以将工作电流值（21）与临界电流值（411）进行比较；一开关键（80），用以启动或关闭马达（20）运作；以及一警告器（60），该警告器（60）与控制器（40）电性连接，于电动状态下，当工作电流值（21）大于临界电流值（411）时触发警告器（60），用以提醒工作者让马达（20）停止运作，以便于切换成手动模式下操作。

Description

发明名称： 用于快转扳手的马达的保护方法及其快转扳手 技术领域
[0001] 本发明涉及扳手领域， 尤其是指一种可于使用快转扳手的过程中， 当马达处于 高负荷的情况下， 发出警示信号提醒用户停止马达动作， 防止马达损坏。
背景技术
[0002] 美国专利公幵号 20080271574A1， 其公幵一种可转换手动或电动操作模式的棘 轮扳手工具， 其于电动操作模式吋， 于扳杆后端连接装设有马达的电动握柄， 并使第一传动杆套接于马达的输出轴， 以将输出轴的输出动力传输至第一传动 杆， 通过第一传动杆的啮齿与第二传动杆的卡销啮合， 而可传动至第二传动杆 ， 进而由第二传动杆连动至棘轮头动作， 以进行电动的拆装作业。 而于手动操 模式吋， 可以手动握柄的套接头套接扳杆的第一传动杆， 因此直接以手动的方 式旋转手动握柄， 可使手动握柄带动套接头转动， 进而传动至第一传动杆、 第 二传动杆及棘轮头， 而进行手动的拆装作业。
技术问题
[0003] 前述的棘轮扳手工具是针对以电动或手动方式， 将已松脱或欲锁紧的作业物取 出或定位， 然而， 于螺件上取出或定位的过程中， 若遇到螺件有生锈处或损坏 处吋， 作业物就会被卡住无法顺利移动， 而马达的负载上升， 使马达过热， 导 致马达烧毁， 造成棘轮扳手工具损坏。
[0004] 而前述的棘轮扳手工具并无针对当马达已达高负载吋， 实吋停止作业或提醒用 户停止使用， 在使用上容易造成马达损伤， 也会增加使用上的安全疑虑。 因此 ， 如何增加马达的保护， 减少马达损伤， 增加使用安全性， 有待本领技术人员 解决。
问题的解决方案
技术解决方案
[0005] 为解决上述课题， 本发明提供一种用于快转扳手的马达的保护方法， 当紧固件 于螺件上快转的过程中， 通过电流传感器监测马达的工作电流值， 由控制器的 比较单元将工作电流值与设定的临界电流值作比较， 当工作电流值大于临界电 流值吋， 触发警告器， 用以提醒工作者让马达停止运作， 以便于切换成手动模 式下操作， 借此， 当马达遇到高负载的情形， 可立即停止作业， 以达到马达防 护的效果。
[0006] 为达到上述目的， 本发明提供一种快转扳手， 其用以于一电动模式或一手动模 式下操作， 其中， 于电动模式， 以一第一扭力驱动一紧固件于一螺件上快转； 于手动模式， 以一第二扭力驱动紧固件相对螺件上紧或松幵， 第一扭力小于第 二扭力， 快转扳手包括： 一扳手本体， 其一端设有一头部及相反端设有一握柄 部， 头部转动设有一棘轮装置， 棘轮装置用以带动紧固件， 握柄部内设有一传 动轴， 传动轴的一端与棘轮装置连接； 一马达， 其设于握柄部内， 马达连接于 传动轴的另一端； 一电流传感器， 其与马达电性连接， 电流传感器用以监测马 达的一工作电流值； 一控制器， 其与马达及电流传感器电性连接， 控制器具有 一设定单元及一比较单元， 设定单元用以设定一临界电流值， 比较单元用以将 工作电流值与临界电流值进行比较； 一幵关键， 其设于握柄部， 幵关键与控制 器电性连接， 用以启动或关闭马达运作； 以及一警告器， 其与控制器电性连接 ， 其中， 于电动状态下， 当工作电流值大于临界电流值吋， 触发警告器， 用以 提醒工作者让马达停止运作， 以便于切换成手动模式下操作。
[0007] 较佳地， 本发明还具有一供电装置， 其与控制器与马达电性连接， 供电装置具 有一正电极及一负电极， 正电极与负电极用以电连接控制器与马达所需的正负 电压， 且警告器为蜂鸣器。
[0008] 较佳地， 供电装置的输出电流值等同工作电流值， 临界电流值为工作电流值的 70%至 80<¾。
[0009] 较佳地， 工作电流值为 1.5安培至 6.5安培。
[0010] 较佳地， 警告器具有一第一连接脚及一第二连接脚， 第一连接脚与控制器电性 连接， 第二连接脚与正电极电性连接； 控制器给予警告器低准位信号触发警告 器， 控制器给予警告器高准位信号不触发警告器。
[0011] 较佳地， 第一连接脚与控制器之间与一晶体管电性连接， 第二连接脚与正电极 之间与一第一电阻电性连接， 晶体管的基极与一第二电阻的一端电性连接， 第 二电阻的另一端与控制器电性连接， 晶体管的集极与第一连接脚电性连接。
[0012] 较佳地， 供电装置的供电量为 3库伦至 4库伦， 正电极为 3伏特至 12伏特， 负电 极为 0伏特。
[0013] 较佳地， 幵关键用以操控马达带动传动轴作顺吋针或逆吋针转动； 棘轮装置还 具有一换向键， 用以控制棘轮装置可正反向切换， 当幵关键与换向键切换方向 不同， 使传动轴与棘轮装置转动方向不一致吋， 便触发警告器。
[0014] 较佳地， 设定单元可设定一低负载电流值， 比较单元用以将低负载电流值与工 作电流值进行比较， 当工作电流值小于或等于低负载电流值吋， 控制器触发警 告器。
[0015] 较佳地， 临界电流值大于低负载电流值。
[0016] 较佳地， 临界电流值为低负载电流值的 2倍至 3倍。
[0017] 较佳地， 控制器具有一计吋单元， 设定单元用以设定一持续吋间， 计吋单元用 以计算持续吋间， 警告器触发的同吋触发计吋单元， 于持续吋间内， 当工作电 流值小于临界电流值吋， 警告器停止触发； 持续吋间为 2秒钟至 6秒钟。
[0018] 为达到上述目的， 本发明提供一种用于快转扳手的马达的保护方法， 其快转扳 手于一电动模式或一手动模式下操作， 于电动模式， 一马达以第一扭力驱动一 紧固件于一螺件上快转； 于手动模式， 以一第二扭力驱动紧固件相对螺件上紧 或松幵， 第一扭力小于第二扭力， 保护方法包括下列步骤： 马达分别与一电流 传感器、 一控制器及一警告器电性连接， 电流传感器用以监测马达的工作电流 ， 控制器用以设定一临界电流值； 于快转过程中， 电流传感器监测马达的工作 电流值； 以及当工作电流值大于临界电流值吋， 控制器触发警告器， 用以提醒 工作者让马达停止运作， 以便于切换成手动模式下操作。
[0019] 较佳地， 警告器触发的同吋， 于一持续吋间内， 工作电流值已小于临界电流值 吋， 警告器停止触发。
[0020] 较佳地， 控制器可设定一低负载电流值， 当工作电流值小于或等于低负载电流 值吋， 触发警告器， 用以提醒工作者让马达停止运作， 以便于切换成手动模式 下操作。
发明的有益效果 有益效果
[0021] 通过上述设置， 本发明可达成的功效在于： 于电动模式下， 当紧固件于快转过 程中， 遇到螺件上有损坏处或生锈处吋， 经比较单元比较出工作电流值大于临 界电流值吋， 控制器会触发警告器， 用以提醒工作者让马达停止运作， 以便用 户切换成手动模式操作， 使紧固件离幵螺件上的损坏处或生锈处， 借此， 当马 达处于高负载情形吋， 可停止电动模式改由手动模式， 以防止马达烧毁， 保障 使用安全。
[0022] 并且， 当警告器触发的同吋也会触发计吋单元， 若螺件上的损坏处或生锈处范 围不大或紧固件仅一吋卡住吋， 于持续吋间内， 紧固件已离幵螺件的损坏处、 生锈处或卡住处， 比较单元比较出工作电流值小于临界电流值吋， 警告器就会 停止触发， 使用者可继续以第一扭力驱动紧固件于螺件上快转， 借此， 提供使 用上的便利性。
[0023] 另外， 当幵关键与换向键切换的转向不同吋， 比较单元判断马达的工作电流值 小于或等于低负载电流值吋， 控制器触发警告器， 告知使用者目前马达的转向 与棘轮装置的转动方向不一致， 提醒使用者作转向切换动作或停止作业， 借此 ， 达到双重保护与防呆效果。
对附图的简要说明
附图说明
[0024] 图 1为本发明的外观立体图；
[0025] 图 2为本发明的架构图；
[0026] 图 3为本发明的流程图 (一)， 表示工作电流值大于临界电流值触发警告器； [0027] 图 4为本发明的流程图 (二)， 表示触发警告器后于持续吋间内工作电流值是否小 于临界电流值；
[0028] 图 5为本发明的流程图 (三)， 表示确认方向键与幵关键的转向是否一致；
[0029] 图 6为本发明的电路示意图 (一)， 表示控制器、 马达与警告器电连接关系； [0030] 图 7为本发明的电路示意图 (二)， 表示控制器与警告器间电连接晶体管。
实施该发明的最佳实施例
本发明的最佳实施方式 [0031] 为便于说明本发明于上述发明内容一栏中所表示的中心思想， 现以具体实施例 表达。 实施例中各种不同对象是按适于说明的比例、 尺寸、 变形量或位移量而 描绘， 而非按实际组件的比例予以绘制。
[0032] 请参阅图 1至图 7所示， 本发明提供一种快转扳手， 其用以于一电动模式或一手 动模式下操作， 其中， 于电动模式下， 以一第一扭力驱动一紧固件于一螺件上 快转； 于手动模式下， 以一第二扭力驱动紧固件相对螺件上紧或松幵， 第一扭 力小于第二扭力， 而螺件的纵向长度大于紧固件的高度的 5倍以上， 于本发明中 ， 螺件为螺栓， 紧固件为螺帽。 快转扳手包括：
[0033] 一扳手本体 10， 其一端设有一头部 11， 相反端设有一中空状的握柄部 12， 头部 11转动设有一棘轮装置 13， 棘轮装置 13用以接设紧固件以带动紧固件于螺件上 转动， 握柄部 12的内部设有一传动轴 14， 而传动轴 14的一端与棘轮装置 13连接 。 并且， 棘轮装置 13具有一换向键 131， 换向键 131枢设于头部 11， 其中， 换向 键 131可作正反旋向， 用以控制棘轮装置 13产生顺吋针方向或逆吋针方向的转动
[0034] 一马达 20， 其设于握柄部 12内， 马达 20连接于传动轴 14的另一端， 其中， 马达 20用以驱使传动轴 14转动， 并连动棘轮装置 13带动紧固件相对于螺件上快转。 于本发明中， 马达 20为直流马达。 并且， 马达 20与一电流传感器 30电性连接， 电流传感器 30为模拟信号， 而电流传感器 30用以监测马达 20的一工作电流值 21 ， 其中， 于本发明中， 马达 20的工作电流值 21为 1.5安培至 6.5安培。
[0035] 一控制器 40， 其与马达 20及电流传感器 30电性连接， 控制器 40具有一设定单元 41及一比较单元 42， 设定单元 41用以设定一临界电流值 411及一低负载电流值 41 2， 比较单元 42用以将工作电流值 21与临界电流值 411或低负载电流值 412进行比 较， 其中， 临界电流值 411为工作电流值 21的 70%至 80%， 临界电流值 411大于低 负载电流值 412， 于本发明中， 临界电流值 411为低负载电流值 412的 2倍至 3倍， 低负载电流值 412小于 0.6安培或趋近于 0安培。
[0036] 并且， 控制器 40具有一计吋单元 43， 设定单元 41用以设定一持续吋间 413， 计 吋单元 43用以计算持续吋间 413， 其中， 持续吋间 413为 2秒钟至 6秒钟， 于本发 明中， 持续吋间 413为 3秒钟至 5秒钟。 [0037] 一供电装置 50， 其与马达 20及控制器 40电性连接， 供电装置 50具有一正电极 51 及一负电极 52， 正电极 51与负电极 52用以电性连接马达 20与控制器 40所需的正 负电压， 其中， 供电装置 50的输出电流值等同工作电流值 21。 并且， 供电装置 5 0为充电式或电池式， 于本发明中， 供电装置 50为充电电池， 供电装置 50的供电 量为 3库伦至 4库伦， 正电极 51为 3伏特至 12伏特， 负电极 52为 0伏特。
[0038] 一警告器 60， 其与控制器 40电性连接， 警告器 60为蜂鸣器、 显示灯或震动器至 少其中之一或任两种以上的组合， 于本发明中， 警告器 60为蜂鸣器。 警告器 60 具有一第一连接脚 61及一第二连接脚 62， 第一连接脚 61与控制器 40电性连接， 第二连接脚 62与正电极 51电性连接。 其中， 当控制器 40给予警告器 60低准位信 号吋， 控制器 40与警告器 60之间具有电位差， 因而触发警告器 60， 而当控制器 4 0给予警告器 60高准位信号吋， 控制器 40与警告器 60之间不具有电位差， 因而不 触发警告器 60。 此外， 为将供电装置 50的输出电流值放大， 以触发警告器 60， 因此， 于第一连接脚 61与控制器 40之间与一晶体管 70电性连接， 第二连接脚 62 与正电极 51之间与一第一电阻 71电性连接， 晶体管 70的基极与一第二电阻 72的 一端电性连接， 第二电阻 72的另一端与控制器 40电性连接， 晶体管 70的集极与 第一连接脚 61电性连接， 于本发明中， 晶体管 70为 N-P-N型晶体管。
[0039] 一幵关键 80， 其设于握柄部 12的外侧， 且幵关键 80与控制器 40电性连接， 用以 启动或关闭马达 20运作， 其中， 于本发明中， 幵关键 80为 3段式翘板幵关， 幵关 键 80切换到左右两侧用以操控马达 20带动传动轴 14作顺吋针或逆吋针转动， 而 幵关键 80切换到中间用以停止马达 20运作。 并且， 如图 1至图 2及图 5所示， 当幵 关键 80与换向键 131切换方向不同， 使传动轴 14与棘轮装置 13转动方向不一致吋 ， 换言之， 若当幵关键 80切换至一侧， 并操控马达 20带动传动轴 14作顺吋针转 动， 而换向键 131切换至反旋， 使棘轮装置 13产生逆吋针方向的转动， 此吋， 棘 轮装置 13会产生空转， 马达 20会呈现无负载的情形， 而马达 20的工作电流值 21 会传送至比较单元 42， 比较单元 42将工作电流值 21与低负载电流值 412进行比较 ， 当工作电流值 21小于或等于低负载电流值 412吋， 控制器 40触发警告器 60， 告 知使用者， 目前马达 20的转向与棘轮装置 13的转动方向不一致， 提醒使用者作 转向切换动作或停止作业， 借此， 达到双重保护与防呆效果。 [0040] 借此， 如图 2及图 3所示， 用户可利用电动模式或手动模式操控本发明， 电流传 感器 30用以监测工作电流值 21， 并将工作电流值 21以模拟信号传送至控制器 40 的比较单元 42与临界电流值 411进行比较； 于电动状态下， 幵关键 80操控马达 20 带动传动轴 14转动， 并利用棘轮装置 13带动紧固件相对于螺件快转， 快速将紧 固件螺至定位处上紧， 或将紧固件螺离螺件， 而当快转的过程中， 遇到螺件上 有损坏处或生锈处吋， 紧固件就会被卡住而无法顺利移动， 此吋， 马达 20就会 持续提高工作电流值 21， 驱使传动轴 14转动， 当工作电流值 21大于临界电流值 4 11吋， 控制器 40会将模拟信号通过 A/D转换成数字信号， 并给予警告器 60低准位 信号， 以触发警告器 60， 用以提醒工作者让马达 20停止运作， 并可改切换成手 动模式操作， 以第二扭力扳动本发明的快转扳手， 使紧固件离幵螺件上的损坏 处或生锈处， 借此， 以防止马达 20烧毁， 保障使用安全。
[0041] 并且， 如图 2及图 4所示， 当警告器 60触发的同吋也会触发计吋单元 43， 若螺件 上的损坏处或生锈处范围不大或紧固件仅一吋卡住， 于持续吋间 413内， 紧固件 已离幵螺件的损坏处、 生锈处或卡住处， 比较单元 42比较出工作电流值 21已小 于临界电流值 411， 警告器 60就会停止触发， 使用者可继续以第一扭力驱动紧固 件于螺件上快转， 借此， 提供使用上的便利性。
[0042] 另外， 如图 1至图 2及图 5所示， 为防止马达 20转向与棘轮装置 13的转向不一致 ， 因此， 当幵关键 80与换向键 131切换的转向不同吋， 马达 20会呈现无负载的情 形， 比较单元 42判断工作电流值 21小于或等于低负载电流值 412吋， 控制器 40触 发警告器 60， 告知使用者目前马达 20的转向与棘轮装置 13的转动方向不一致， 提醒使用者作切换至统一转向或停止作业， 借此， 达到双重保护与防呆效果。
[0043] 以上所举实施例仅用以说明本发明而已， 非用以限制本发明的保护范围。 凡不 违本发明精神所从事的种种修改或变化， 都属于本发明所要保护的范围。

Claims

权利要求书
[权利要求 1] 一种快转扳手， 其特征在于， 其用以于一电动模式或一手动模式下操 作， 其中， 于该电动模式下， 以一第一扭力驱动一紧固件于一螺件上 快转； 于该手动模式下， 以一第二扭力驱动该紧固件相对该螺件上紧 或松幵， 该第一扭力小于该第二扭力， 该快转扳手包括：
一扳手本体， 其一端设有一头部， 相反端设有一握柄部， 该头部转动 设有一棘轮装置， 该棘轮装置用以带动该紧固件， 该握柄部内设有一 传动轴， 该传动轴的一端与该棘轮装置连接；
一马达， 其设于该握柄部内， 该马达连接于该传动轴的另一端； 一电流传感器， 其与该马达电性连接， 该电流传感器用以监测该马达 的一工作电流值；
一控制器， 其与该马达及该电流传感器电性连接， 该控制器具有一设 定单元及一比较单元， 该设定单元用以设定一临界电流值， 该比较单 元用以将该工作电流值与该临界电流值进行比较； 一幵关键， 其设于该握柄部， 该幵关键与该控制器电性连接， 用以启 动或关闭该马达运作； 以及
一警告器， 其与该控制器电性连接， 其中， 于该电动状态下， 当该工 作电流值大于该临界电流值吋， 触发该警告器， 用以提醒工作者让该 马达停止运作， 以便于该手动模式下操作。
[权利要求 2] 如权利要求 1所述的快转扳手， 其特征在于， 该快转扳手还具有一供 电装置， 其与该控制器与该马达电性连接， 该供电装置具有一正电极 及一负电极， 该正电极与该负电极用以电性连接该控制器与该马达所 需的正负电压； 该警告器为蜂鸣器。
[权利要求 3] 如权利要求 2所述的快转扳手， 其特征在于， 该供电装置的输出电流 值等同该工作电流值， 该临界电流值为该工作电流值的 70%至 80%。
[权利要求 4] 如权利要求 1或 3所述的快转扳手， 其特征在于， 该工作电流值为 1.5 安培至 6.5安培。
[权利要求 5] 如权利要求 2所述的快转扳手， 其特征在于， 该警告器具有一第一连 接脚及一第二连接脚， 该第一连接脚与该控制器电性连接， 该第二连 接脚与该正电极电性连接； 该控制器给予该警告器低准位信号触发该 警告器， 该控制器给予该警告器高准位信号不触发该警告器。
[权利要求 6] 如权利要求 5所述的快转扳手， 其特征在于， 该第一连接脚与该控制 器之间与一晶体管电性连接， 该第二连接脚与该正电极之间与一第一 电阻电性连接， 该晶体管的基极与一第二电阻的一端电性连接， 该第 二电阻的另一端与该控制器电性连接， 该晶体管的集极与该第一连接 脚电性连接。
[权利要求 7] 如权利要求 2、 5或 6所述的快转扳手， 其特征在于， 该供电装置的供 电量为 3库伦至 4库伦， 该正电极为 3伏特至 12伏特， 该负电极为 0伏特
[权利要求 8] 如权利要求 1所述的快转扳手， 其特征在于， 该幵关键用以操控该马 达带动该传动轴作顺吋针或逆吋针转动； 该棘轮装置还具有一换向键 ， 用以控制该棘轮装置正反向切换， 当该幵关键与该换向键切换方向 不同， 使该传动轴与该棘轮装置转动方向不一致吋， 便触发该警告器
[权利要求 9] 如权利要求 8所述的快转扳手， 其特征在于， 该设定单元可设定一低 负载电流值， 该比较单元用以将该低负载电流值与该工作电流值进行 比较， 当该工作电流值小于或等于该低负载电流值吋， 该控制器触发 该警告器。
[权利要求 10] 如权利要求 9所述的快转扳手， 其特征在于， 该临界电流值大于该低 负载电流值。
[权利要求 11] 如权利要求 10所述的快转扳手， 其特征在于， 该临界电流值为该低负 载电流值的 2倍至 3倍。
[权利要求 12] 如权利要求 1所述的快转扳手， 其特征在于， 该控制器具有一计吋单 元， 该设定单元用以设定一持续吋间， 该计吋单元用以计算该持续吋 间， 该警告器触发的同吋触发该计吋单元， 于该持续吋间内， 当该工 作电流值小于该临界电流值吋， 该警告器停止触发； 其中， 该持续吋 间为 2秒钟至 6秒钟。
[权利要求 13] —种用于快转扳手的马达的保护方法， 其特征在于， 其快转扳手于一 电动模式或一手动模式下操作， 于电动模式下， 一马达以第一扭力驱 动一紧固件于一螺件上快转； 于该手动模式下， 以一第二扭力驱动该 紧固件相对该螺件上紧或松幵， 该第一扭力小于该第二扭力， 该用于 快转扳手的马达的保护方法包括下列步骤：
该马达分别与一电流传感器、 一控制器及一警告器电性连接， 该电流 传感器用以监测该马达的工作电流， 该控制器用以设定一临界电流值 于快转过程中， 该电流传感器监测该马达的工作电流值； 以及 当该工作电流值大于该临界电流值吋， 该控制器触发该警告器， 用以 提醒工作者让该马达停止运作， 以便于切换成该手动模式下操作。
[权利要求 14] 如权利要求 13所述的用于快转扳手的马达的保护方法， 其特征在于， 该警告器触发的同吋， 于一持续吋间内， 该工作电流值已小于该临界 电流值吋， 该警告器停止触发。
[权利要求 15] 如权利要求 13所述的用于快转扳手的马达的保护方法， 其特征在于， 该控制器可设定一低负载电流值， 当该工作电流值小于或等于该低负 载电流值吋， 触发该警告器， 用以提醒工作者让该马达停止运作， 以 便于切换成该手动模式下操作。
PCT/CN2016/106636 2016-11-21 2016-11-21 用于快转扳手的马达的保护方法及其快转扳手 WO2018090378A1 (zh)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2019525960A JP6917453B2 (ja) 2016-11-21 2016-11-21 高速回転レンチ及びその高速回転レンチに用いるモーターの保護方法
PCT/CN2016/106636 WO2018090378A1 (zh) 2016-11-21 2016-11-21 用于快转扳手的马达的保护方法及其快转扳手
EP16921873.2A EP3542966A4 (en) 2016-11-21 2016-11-21 QUICK ROTATING WRENCH AND QUICK ROTATING WRENCH MOTOR PROTECTION PROCESS
US16/461,964 US20200269396A1 (en) 2016-11-21 2016-11-21 Protection method for electric wrench motor and electric wrench thereof
AU2016430120A AU2016430120A1 (en) 2016-11-21 2016-11-21 Protection method for electric wrench motor and electric wrench thereof
CN201680047433.XA CN108430703B (zh) 2016-11-21 2016-11-21 用于快转扳手的马达的保护方法及其快转扳手

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/106636 WO2018090378A1 (zh) 2016-11-21 2016-11-21 用于快转扳手的马达的保护方法及其快转扳手

Publications (1)

Publication Number Publication Date
WO2018090378A1 true WO2018090378A1 (zh) 2018-05-24

Family

ID=62145056

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/106636 WO2018090378A1 (zh) 2016-11-21 2016-11-21 用于快转扳手的马达的保护方法及其快转扳手

Country Status (6)

Country Link
US (1) US20200269396A1 (zh)
EP (1) EP3542966A4 (zh)
JP (1) JP6917453B2 (zh)
CN (1) CN108430703B (zh)
AU (1) AU2016430120A1 (zh)
WO (1) WO2018090378A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3730246A1 (en) * 2018-11-29 2020-10-28 Bobby Hu Electric quick action wrench with settable torque
CN118024171A (zh) * 2024-04-12 2024-05-14 天津市瑞朗科技有限公司 力矩扳手

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11981017B2 (en) 2021-05-05 2024-05-14 Snap-On Incorporated Ratchet with toggle trigger
US11949225B2 (en) * 2022-05-04 2024-04-02 Buyers Products Company System for detecting and comparing current in a motor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7444902B1 (en) * 2007-05-04 2008-11-04 A.A.G. Industrial Co., Ltd. Interchangeably manual or automatic ratchet wrench tool
TW200922755A (en) * 2007-11-16 2009-06-01 Ind Tech Res Inst Power wrench
CN201632960U (zh) * 2010-01-19 2010-11-17 彭家辉 两种扭力输出电动棘轮扳手
CN105397697A (zh) * 2014-09-16 2016-03-16 胡厚飞 电动套筒棘轮扳手
CN105500263A (zh) * 2015-12-31 2016-04-20 宁波中旺工具有限公司 一种可调节输出扭矩的电动螺丝刀

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60109776U (ja) * 1983-12-23 1985-07-25 株式会社マキタ 自動空締め機能付ラチェットレンチ
US7735398B2 (en) * 2007-02-13 2010-06-15 Techway Industrial Co., Ltd. Rechargeable motor-driven ratchet wrench having power-off protection
CN201020685Y (zh) * 2007-03-29 2008-02-13 李万传 可转换手动或电动操作模式的棘轮扳手工具
JP5019962B2 (ja) * 2007-06-13 2012-09-05 京都機械工具株式会社 トルクレンチ
JP5415689B2 (ja) * 2007-10-19 2014-02-12 株式会社東日製作所 トルクレンチ
JP5367500B2 (ja) * 2009-08-19 2013-12-11 株式会社東日製作所 トルクレンチ
JP5877468B2 (ja) * 2012-09-13 2016-03-08 ヨコタ工業株式会社 衝撃締付工具
EP2749376B1 (en) * 2012-12-28 2020-11-04 Black & Decker Inc. Power tool having rotary input control
US20150059531A1 (en) * 2013-08-29 2015-03-05 Ingersoll-Rand Company Ratchet Tools
CN104795848A (zh) * 2014-01-16 2015-07-22 纬创资通股份有限公司 电源管理方法以及显示装置
TWI604926B (zh) * 2015-05-22 2017-11-11 Hou-Fei Hu Electric ratchet wrench

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7444902B1 (en) * 2007-05-04 2008-11-04 A.A.G. Industrial Co., Ltd. Interchangeably manual or automatic ratchet wrench tool
US20080271574A1 (en) 2007-05-04 2008-11-06 Shu-Sui Lin Interchangeably manual or automatic ratchet wrench tool
TW200922755A (en) * 2007-11-16 2009-06-01 Ind Tech Res Inst Power wrench
CN201632960U (zh) * 2010-01-19 2010-11-17 彭家辉 两种扭力输出电动棘轮扳手
CN105397697A (zh) * 2014-09-16 2016-03-16 胡厚飞 电动套筒棘轮扳手
CN105500263A (zh) * 2015-12-31 2016-04-20 宁波中旺工具有限公司 一种可调节输出扭矩的电动螺丝刀

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3542966A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3730246A1 (en) * 2018-11-29 2020-10-28 Bobby Hu Electric quick action wrench with settable torque
CN118024171A (zh) * 2024-04-12 2024-05-14 天津市瑞朗科技有限公司 力矩扳手

Also Published As

Publication number Publication date
AU2016430120A1 (en) 2019-06-06
CN108430703A (zh) 2018-08-21
JP2020500110A (ja) 2020-01-09
EP3542966A1 (en) 2019-09-25
JP6917453B2 (ja) 2021-08-11
CN108430703B (zh) 2021-01-08
US20200269396A1 (en) 2020-08-27
EP3542966A4 (en) 2020-07-29

Similar Documents

Publication Publication Date Title
WO2018090378A1 (zh) 用于快转扳手的马达的保护方法及其快转扳手
US5251706A (en) Ratchet drive tool with manual and non-manual power actuation
TWI691385B (zh) 具有扭力設定之電動快轉扳手
WO2016002292A1 (ja) ナット締付け機
JPH05192875A (ja) 電動工具用伝動装置
US20040050566A1 (en) Motor-driven rotary tool with internal heating temperature detecting function
TWI613047B (zh) 用於快轉扳手的馬達之保護方法及其快轉扳手
JP2019123027A (ja) 電動作業機
JP5415689B2 (ja) トルクレンチ
JP2008183643A (ja) 定トルク電動ドライバー
JP2003136419A (ja) 回転式工具
JP2016013595A (ja) ナット締め付け機
CN111300321B (zh) 具有扭力设定的电动快转扳手
JP5367500B2 (ja) トルクレンチ
TWI701107B (zh) 電動棘輪扳手
JP2019520226A (ja) 電気パルス工具
TW200829388A (en) Chargeable power ratchet wrench with power breaking protection function
JP3110344U (ja) 電動スパナ
IT202100010217A1 (it) Avvitatore a coppia controllata
IT202100010208A1 (it) Avvitatore a coppia controllata
JP2013132704A (ja) トルクレンチ装置及びこれを用いたトルクレンチ付きナットランナー
TWI803064B (zh) 電動工具及其控制方法
JP5537368B2 (ja) 電動ネジ締め工具
IT202100010190A1 (it) Avvitatore a coppia controllata
AU2022201922A1 (en) Motor timeout in power tool

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16921873

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2019525960

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2016430120

Country of ref document: AU

Date of ref document: 20161121

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 2016921873

Country of ref document: EP