An electric tool system includes an electric tool and a management system. The electric tool includes a first communications unit that establishes wireless communication. The electric tool is used to do work on a work target. The management system includes a second communications unit that communicates wirelessly with the first communications unit of the electric tool. The management system makes the second communications unit transmit, during a single communication session with the first communications unit, setting information about multiple tasks of the work to the first communications unit.

An impact rotary tool includes a motor, an output shaft configured to hold a tip tool and configured to rotate by a motive power of the motor, an impact mechanism configured to perform an impact operation to repeatedly generate, from the motive power of the motor, impact force acting on the output shaft, and a seating detector configured to detect a seating of a fastener component which is a state where the fastener component rotated by the tip tool is just seated on a work target. The seating detector has a plurality of seating detection modes. The impact rotary tool further includes an acquirer configured to acquire information indicative of one seating detection mode selected from the plurality of seating detection modes. The seating detector is configured to detect the seating of the fastener component based on the one seating detection mode indicated by the information acquired by the acquirer.

An impact rotary tool includes a motor, a hammer, an anvil, a sensor, a circuit board, and an isolator. The hammer is configured to receive rotational force around an axis from the motor and output striking rotational force which is obtained by converting part of the rotational force into striking force around the axis. The anvil to which a tip tool is to be attached is configured to rotate, together with the tip tool, around the axis in response to the striking rotational force received from the hammer. The sensor is disposed in a vicinity of the anvil and is configured to sense a change in a state of the anvil, the change being according to the striking rotational force. The circuit board is configured to receive a sensing result by the sensor. The isolator isolates contact portions of the hammer and the anvil from at least the circuit board.

An impact tool includes a motor, an output block, a hammer, and a magnetostrictive sensor. The magnetostrictive sensor includes a magnetostrictive member and a coil portion covering the magnetostrictive member. The output block includes a claw block and a body block. The claw block includes an anvil claw, against which a hammer claw collides. The claw block has been subjected to quenching treatment. The body block includes a thermally sprayed portion and is coupled to the claw block. The thermally sprayed portion includes, on a surface thereof, the magnetostrictive member made of a magnetostrictive material.

A control method includes two operating modes carried out in response to a position of a selector switch. The first operating mode provides: carrying out first impacts of the hammer onto the anvil; detecting the event of an impact of the hammer onto the anvil with an impact sensor; detecting an angular position of the anvil with an angle sensor; estimating an individual impact angle of the anvil due to the last detected impact, based on the angular position of the anvil before the last detected impact and the angular position of the anvil after the last detected impact, and comparing the individual impact angle with an individual impact setpoint angle. The first operating mode is ended when the individual impact angle drops below an individual impact setpoint angle. The second operating mode provides: detecting the angular position of the anvil with the angle sensor as the initial position; carrying out second impacts of the hammer onto the anvil; and detecting a relative rotation angle of the anvil with respect to the initial position during the second impacts. The second operating mode is ended when the relative rotation angle exceeds a standard angle.

Position sensing related to a component within a power tool. The component within the power tool is, for example, a hammer of an impact mechanism and can include one or more sensible features that allow a controller of the power tool to precisely determine the position, speed, and acceleration of the component. One or more sensors can be used to determine the rotational position of the hammer and the axial position of the hammer. The rotational position of the hammer can then be used to calculate, for example, rotational speed and acceleration of the hammer. With precise determinations of the rotational and axial position of the hammer, the controller of the power tool is able to precisely time the impact between the hammer and the anvil to optimize the impact between the hammer and the anvil (e.g., to maximize energy transfer between the hammer and the anvil).

A rotary impact tool includes an impact assembly, a brushless motor, a transmission assembly, a drive circuitry, and a controller. The controller is configured to acquire a commutation interval of the brushless motor, output a first control signal to the drive circuitry causing the brushless motor to operate at a preset initial speed, and output a second control signal to the drive circuitry to gradually increase a rotational speed of the brushless motor to a preset final speed, when a commutation interval of the brushless motor becomes greater than or equal to a preset time threshold, where the preset initial speed is less than the preset final speed.

An electric power tool in one aspect of the present disclosure includes a motor, an output shaft, a torque detector, a correction circuit, and an output circuit. The correction circuit corrects a drive command value based on load torque detected by the torque detector. The drive command value indicates a magnitude of electric power to be supplied to the motor. The output circuit outputs a drive signal indicating the drive command value. The drive circuit (i) receives the drive signal from the output circuit and (ii) supplies electric power in accordance with the drive signal to the motor to drive the motor.

An electric tool adapted to perform tightening operations where torque is delivered in pulses to tighten a screw joint. The electric tool including an electric motor drivingly connected to an output shaft. A processor and a memory storing software instructions that, when executed by the processor cause the electrical tool, retrieve a first power level parameter p1 indicating a first power level to be used for torque pulses up to a torque threshold. And retrieve a second power level parameter p2 indicating a second power level to be used for torque pulses above the torque threshold. Then control the speed of the electric motor, so that the electric tool provide torque pulses on the output shaft with the first power level p1 until the torque threshold is reached. And control the speed of the electric motor, so that the electric tool provide torque pulses on the output shaft with the second power level p2.

A work machine is configured so that multiple groups are prepared in advance as drive modes and so that it is possible to switch between these groups. The work machine having multiple drive modes is configured so that multiple sets (first to third groups) of drive modes are provided and so that it is possible to switch between the first to third groups, whereby it is possible to provide a variety of drive modes to an operator. The operation for switching between the first to third groups includes both a normal operation and a long-press operation of a first switch for changing drive modes in the work machine. This makes it possible for an operator to switch from a standard drive mode group (first group) set as a factory default to a desired drive mode group (second or third group).