Abstract: A handheld personal care device according to the present disclosure includes: an operation switch configured to change a treatment operation of an operation unit; a sensor electrode configured to cause a change in capacitance depending on whether or not the grip unit is grasped; and a control device electrically connected to the operation switch and the sensor electrode and configured to control the treatment operation of the operation unit. The control device includes: a grasp detector configured to detect that the grip unit is grasped based on a change in capacitance of the sensor electrode; and a change permission part configured to permit the operation switch to change the treatment operation of the operation unit when the change permission part receives, from the grasp detector, grasp information indicating that the grip unit is grasped.

Abstract: Electric appliance (1) includes control section (31) having a plurality of operation modes, driving source (21) controlled by control section (31), and switch (12) for switching between the operation modes. Control section (31) is configured to perform a first determination and a second determination in response to an operation duration of switch (12) in order to determine a type of the operation of switch (12), and to set an operation mode after the operation of switch (12) in response to the results of the first and second determinations and an operation mode before the operation of switch (12). In the present aspect, the operability of switching between the operation modes in electric appliance (1) is improved.

Abstract: A handheld personal care device according to the present disclosure includes: an operation switch configured to change a treatment operation of an operation unit; a sensor electrode configured to cause a change in capacitance depending on whether or not the grip unit is grasped; and a control device electrically connected to the operation switch and the sensor electrode and configured to control the treatment operation of the operation unit. The control device includes: a grasp detector configured to detect that the grip unit is grasped based on a change in capacitance of the sensor electrode; and a change permission part configured to permit the operation switch to change the treatment operation of the operation unit when the change permission part receives, from the grasp detector, grasp information indicating that the grip unit is grasped.

Abstract: A hair removal tool is equipped with: a drive unit for driving a blade; a load detection unit for detecting the size of the load on the drive unit; and a control unit for changing the drive mode of the drive unit between a first drive mode for driving the drive unit at a first drive speed, a second drive mode for driving the drive unit at a second drive speed which is faster than the first drive speed, and a transition mode for driving the drive unit at a transition speed which is faster than the second drive speed. A first interval is set as the interval from when the drive mode is changed from the first drive mode to the transition mode until when the drive mode is changed from the transition mode to the second drive mode. A second interval is set as the interval from when the drive mode is changed from the transition mode to the second drive mode until when the drive mode is changed from the second drive mode to the first drive mode. The first interval is shorter than the second interval.

Abstract: An amplitude control unit (40) detects the amplitude of a movable element (12) that reciprocates relative to a stator (11), detects fluctuations in a load over time according to detected fluctuations over time in the amplitude, and detects an abnormality on the basis of the detected fluctuations over time in the load. The amplitude control unit (40) outputs the detected amplitudes to a control output unit (50). The control output unit (50) controls a drive current (Id) for reciprocating the movable element (12) on the basis of the amplitude information supplied from the amplitude control unit (40).

Abstract: An electric razor is provided with a linear actuator having a stator which includes an electromagnet and also having a moving element which includes a permanent magnet. The electric razor is also provided with an amplitude control unit and a control/output unit, which detect the amplitude and speed of the moving element on the basis of an induced voltage occurring in the winding of the stator as the moving element reciprocates, compare the detected speed and a formerly detected speed, and, according to the difference representing the result of the comparison, change a method for controlling the moving element.

Abstract: Electric appliance (1) includes control section (31) having a plurality of operation modes, driving source (21) controlled by control section (31), and switch (12) for switching between the operation modes. Control section (31) is configured to perform a first determination and a second determination in response to an operation duration of switch (12) in order to determine a type of the operation of switch (12), and to set an operation mode after the operation of switch (12) in response to the results of the first and second determinations and an operation mode before the operation of switch (12). In the present aspect, the operability of switching between the operation modes in electric appliance (1) is improved.

Abstract: A hair removal tool is equipped with: a drive unit for driving a blade; a load detection unit for detecting the size of the load on the drive unit; and a control unit for changing the drive mode of the drive unit between a first drive mode for driving the drive unit at a first drive speed, a second drive mode for driving the drive unit at a second drive speed which is faster than the first drive speed, and a transition mode for driving the drive unit at a transition speed which is faster than the second drive speed. A first interval is set as the interval from when the drive mode is changed from the first drive mode to the transition mode until when the drive mode is changed from the transition mode to the second drive mode. A second interval is set as the interval from when the drive mode is changed from the transition mode to the second drive mode until when the drive mode is changed from the second drive mode to the first drive mode. The first interval is shorter than the second interval.

Abstract: An electric razor is provided with a linear actuator having a stator which includes an electromagnet and also having a moving element which includes a permanent magnet. The electric razor is also provided with an amplitude control unit and a control/output unit, which detect the amplitude and speed of the moving element on the basis of an induced voltage occurring in the winding of the stator as the moving element reciprocates, compare the detected speed and a formerly detected speed, and, according to the difference representing the result of the comparison, change a method for controlling the moving element.

Abstract: A contactless power transmission device is provided with: a washstand that includes a primary coil; and an electric toothbrush that includes a secondary coil, a rectifier circuit, and a feed control unit. The electric toothbrush includes a first auxiliary coil which relays a magnetic flux which flows from the primary coil to the secondary coil, and a second auxiliary coil which relays a magnetic flux which flows from the primary coil to the secondary coil. A central axis of the second auxiliary coil is perpendicular to a central axis of the first auxiliary coil.

Abstract: An amplitude control unit (40) detects the amplitude of a movable element (12) that reciprocates relative to a stator (11), detects fluctuations in a load over time according to detected fluctuations over time in the amplitude, and detects an abnormality on the basis of the detected fluctuations over time in the load. The amplitude control unit (40) outputs the detected amplitudes to a control output unit (50). The control output unit (50) controls a drive current (Id) for reciprocating the movable element (12) on the basis of the amplitude information supplied from the amplitude control unit (40).

Abstract: An ultrasonic cosmetic device includes an ultrasonic oscillator having a specific thickness at the ultrasonic wave generating region, a probe equipped with an oscillating portion that connects to the ultrasonic oscillator through a joint surface, a horn that applies ultrasonic waves to the skin from a wave radiating surface, and a drive device to power the ultrasonic oscillator. The horn includes a restrictor portion in the form of an external circumferential component, the restrictor portion being located outside of the circumference of the ultrasonic oscillator to restrict the propagation of ultrasonic waves in undesired directions.