Abstract: Provided is a rotary tool. In the rotary tool, the rotating tip tool is mounted on a spindle by the fixture, and the spindle and the tip tool are rotated by a motor. The rotary tool has a switch which can switch the motor between a rotation state and a stop state, and a control device which controls the rotation of the motor corresponding to the operation of the switch. When the switch is turned off after a required time T elapses after the motor is started, the control device stops the rotary tool (104d, 106d) by performing a common braking operation on the spindle, and when the switch is turned off before the required time T elapses after the motor is started, the control device stops the tip tool (101d) by inertia without applying a braking force.

Abstract: A driver capable of suppressing an increase in a load of a bumper is provided. The driver includes a striking portion provided movably and configured to move to strike a fastener; a bumper configured to be in contact with the striking portion to restrict a range of movement of the striking portion; and a housing configured to support the bumper, the driver further including a load suppressing portion configured to suppress an increase in a load of the bumper based on the load of the bumper detected by a load detection portion or number of operations of the striking portion within a predetermined time.

Abstract: 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).

Abstract: A driver capable of suppressing an increase in a load of a bumper is provided. The driver 10 includes a striking portion 12 provided movably and configured to move to strike a fastener; a bumper 33 configured to be in contact with the striking portion 12 to restrict a range of movement of the striking portion 12; and a housing 11 configured to support the bumper 33, the driver 10 further including a load suppressing portion configured to suppress an increase in a load of the bumper 33 based on the load of the bumper 33 detected by a load detection portion or number of operations of the striking portion within a predetermined time.

Abstract: A driver capable of achieving favorable workmanship at the time of driving of a fastener into a workpiece to be driven is provided.

Abstract: A drilling tool includes: a drive source; a bit attachment portion to which an end bit is attachable; a power transmission portion configured to apply a motive force to the end bit attached to the bit attachment portion; an operation portion switchable between an ON-state and an OFF-state by a manual operation and configured to receive a setting operation for setting a stop condition; and a controller configured to set the stop condition based on the setting operation, and to start driving of the drive source in response to a first switching operation for switching the operation portion from the OFF-state to the ON-state. In a state where the stop condition is set, even when the operation portion is in the ON-state, the controller stops driving of the drive source in response to the stop condition being met while the drive source is being driven.

Abstract: A drilling tool includes: a drive source; a bit attachment portion to which an end bit is attachable; a power transmission portion configured to apply a motive force to the end bit attached to the bit attachment portion; an operation portion switchable between an ON-state and an OFF-state by a manual operation and configured to receive a setting operation for setting a stop condition; and a controller configured to set the stop condition based on the setting operation, and to start driving of the drive source in response to a first switching operation for switching the operation portion from the OFF-state to the ON-state. In a state where the stop condition is set, even when the operation portion is in the ON-state, the controller stops driving of the drive source in response to the stop condition being met while the drive source is being driven.

Abstract: A power tool includes: a battery connecting part to which one of a first battery pack and a second battery pack having capacity smaller than that of the first battery pack is detachably attachable; a motor driven by electric power supplied from the battery pack; current detection means configured to detect a discharge current flowing from the battery pack to the motor; cut-off controlling means configured to cut off the discharge current when the discharge current becomes equal to or larger than a current threshold; and battery type discrimination means configured to discriminate the battery pack connected to the battery connecting part. The current threshold when the second battery pack is connected to the battery connecting part is lower than that when the first battery pack is connected to the battery connecting part.

Abstract: A driver capable of achieving favorable workmanship at the time of driving of a fastener into a workpiece to be driven is provided.

Abstract: A driver has: a wheel that is rotationally driven by an electric motor; pins provided to the wheel and arranged along a circumferential direction of the wheel; a piston reciprocably housed in a cylinder; a driver blade that integrally reciprocates with the piston; racks provided to the driver blade along an axial direction of the driver blade; and a controller configured to control a drive of the electric motor by PWM. The controller changes a duty ratio of the switching element provided on a power supply line for the electric motor in response to a change in remaining battery level as one of situations that affects a moving speed of the piston from the bottom dead point side to the top dead point side.

Abstract: In order to provide an impact tool which is capable of increasing a striking force in a rotational direction of being applied from a hammer to an anvil, the impact tool includes: an electric motor; an anvil which supports a work tool and is driven by the electric motor; and a hammer which applies the striking force in the rotational direction to the anvil. The impact tool is provided with: a spindle which is arranged to be concentric with the anvil, supports the hammer to be movable in an axial direction and the rotational direction with respect to the anvil, and transmits motive power of the electric motor to the anvil; and a control unit which controls rotation speed of the electric motor. The number of strokes of the anvil due to one rotation of the hammer differs in response to rotation speed of the electric motor.

Abstract: A driver capable of suppressing an increase in a load of a bumper is provided. The driver 10 includes a striking portion 12 provided movably and configured to move to strike a fastener; a bumper 33 configured to be in contact with the striking portion 12 to restrict a range of movement of the striking portion 12; and a housing 11 configured to support the bumper 33, the driver 10 further including a load suppressing portion configured to suppress an increase in a load of the bumper 33 based on the load of the bumper 33 detected by a load detection portion or number of operations of the striking portion within a predetermined time.

Abstract: Provided is a rotary tool. In the rotary tool, the rotating tip tool is mounted on a spindle by the fixture, and the spindle and the tip tool are rotated by a motor. The rotary tool has a switch which can switch the motor between a rotation state and a stop state, and a control device which controls the rotation of the motor corresponding to the operation of the switch. When the switch is turned off after a required time T elapses after the motor is started, the control device stops the rotary tool (104d, 106d) by performing a common braking operation on the spindle, and when the switch is turned off before the required time T elapses after the motor is started, the control device stops the tip tool (101d) by inertia without applying a braking force.

Abstract: In order to provide an electric tool with good operability that can extend the life of and suppress breakage of a switching element for controlling energization of a brushless motor, a control unit (50), after an operation switch (5) is turned off, does not immediately turn off an inverter circuit (43) (does not set the duty of a PWM signal to 0), and instead normally operates the inverter circuit (43) with a low-duty PWM signal and waits until a rotation speed of a brushless motor (6) reaches a predetermined rotation speed or less to turn off the inverter circuit (43) (to set the duty of the PWM signal to 0).

Abstract: A driver has: a wheel that is rotationally driven by an electric motor; pins provided to the wheel and arranged along a circumferential direction of the wheel; a piston reciprocably housed in a cylinder; a driver blade that integrally reciprocates with the piston; racks provided to the driver blade along an axial direction of the driver blade; and a controller configured to control a drive of the electric motor by PWM. The controller changes a duty ratio of the switching element provided on a power supply line for the electric motor in response to a change in remaining battery level as one of situations that affects a moving speed of the piston from the bottom dead point side to the top dead point side.

Abstract: In order to provide an impact tool which is capable of increasing a striking force in a rotational direction of being applied from a hammer to an anvil, the impact tool includes: an electric motor; an anvil which supports a work tool and is driven by the electric motor; and a hammer which applies the striking force in the rotational direction to the anvil. The impact tool is provided with: a spindle which is arranged to be concentric with the anvil, supports the hammer to be movable in an axial direction and the rotational direction with respect to the anvil, and transmits motive power of the electric motor to the anvil; and a control unit which controls rotation speed of the electric motor. The number of strokes of the anvil due to one rotation of the hammer differs in response to rotation speed of the electric motor.

Abstract: An electronic pulse driver includes a motor, a hammer, an anvil, an end tool mounting unit, a power supply unit, and a control unit. The hammer is rotatable together with the anvil. The end tool mounting unit transmits the rotation of the anvil to an end tool. The power supply unit supplies a drive electric power to the motor. The control unit controls the power supply unit to halt a supply of the drive electric power to the motor when an electric current flowing to the motor increases to a prescribed value. The control unit controls the power supply unit to supply to the motor a prestart electric power lower than the drive electric power before supplying the drive electric power in order to permit the power supply unit to supply the drive electric power after the hammer is in contact with the anvil.

Abstract: A power tool capable of appropriately performing discharge control with respect to respective battery packs whose battery types are different from each other. The power tool includes: a battery connecting part to which one of a first battery pack and a second battery pack having capacity smaller than that of the first battery pack is detachably attachable; a motor driven by electric power supplied from the battery pack; current detection means configured to detect a discharge current flowing from the battery pack to the motor; cut-off controlling means configured to cut off the discharge current when the discharge current becomes equal to or larger than a current threshold; and battery type discrimination means configured to discriminate the battery pack connected to the battery connecting part. The current threshold when the second battery pack is connected to the battery connecting part is lower than that when the first battery pack is connected to the battery connecting part.

Abstract: An electric tool including: a motor configured to drive a front end tool; a control device configure to control rotation of the motor; a storage part configured to store a method of driving the motor by the control device; and a communication terminal to which a communication line for reading or writing information of the storage part is configured to be connected.

Abstract: In order to provide an electric tool with good operability that can extend the life of and suppress breakage of a switching element for controlling energization of a brushless motor, a control unit (50), after an operation switch (5) is turned off, does not immediately turn off an inverter circuit (43) (does not set the duty of a PWM signal to 0), and instead normally operates the inverter circuit (43) with a low-duty PWM signal and waits until a rotation speed of a brushless motor (6) reaches a predetermined rotation speed or less to turn off the inverter circuit (43) (to set the duty of the PWM signal to 0).