Abstract: An impact tool includes a motor, a control unit, an output shaft, a transmission mechanism, and an impact detection unit. The transmission mechanism includes an impact mechanism. The impact mechanism applies impacting force to the output shaft while performing an impact operation. The impact detection unit determines, based on at least one of an excitation current (current measured value) to be supplied to the motor or a torque current (current measured value) to be supplied to the motor, whether or not the impact operation is being performed. The control unit places a limit on an increase in the number of revolutions of the motor before the impact detection unit detects the impact operation and removes the limit on the increase in the number of revolutions of the motor when the impact detection unit detects the impact operation.

Abstract: An impact rotary tool includes a driver, a drive shaft, a hammer, an anvil, a travel distance measuring device, and a torque estimator. The driver is configured to perform a turning operation. The travel distance measuring device is configured to measure a parameter relating to a hammer travel distance through which on application of impact to the anvil by the hammer, the hammer moves away from the anvil along an axial direction from a location of the application of the impact to the anvil by the hammer. The torque estimator is configured to estimate, based on at least the parameter relating to the hammer travel distance, a torque value generated by the impact.

Abstract: An electric tool includes an AC motor (an electric motor) and a control unit. The AC motor includes a permanent magnet and a coil. The control unit is configured to perform control on operation of the AC motor. The control performed by the control unit includes field weakening control. In the field weakening control, the control unit causes a flux-weakening current to flow through the coil. The flux-weakening current is a current that generates, in the coil, a magnetic flux that weakens a magnetic flux of the permanent magnet.

Abstract: An impact tool includes a motor, a control unit, an output shaft, a transmission mechanism, and an impact detection unit. The transmission mechanism includes an impact mechanism. The impact mechanism applies impacting force to the output shaft while performing an impact operation. The impact detection unit determines, based on at least one of an excitation current (current measured value) to be supplied to the motor or a torque current (current measured value) to be supplied to the motor, whether or not the impact operation is being performed. The control unit places a limit on an increase in the number of revolutions of the motor before the impact detection unit detects the impact operation and removes the limit on the increase in the number of revolutions of the motor when the impact detection unit detects the impact operation.

Abstract: An impact tool includes a motor, a control unit, an output shaft, a transmission mechanism, and an impact detection unit. The transmission mechanism includes an impact mechanism. The impact mechanism performs an impact operation according to magnitude of torque applied to the output shaft. The impact detection unit determines, based on at least one of an excitation current (current measured value) to be supplied to the motor or a torque current (current measured value) to be supplied to the motor, whether or not the impact operation is being performed. The control unit fulfills an impact response function by performing restriction processing in response to detection of the impact operation by the impact detection unit as a trigger. The restriction processing includes at least one of lowering the number of revolutions of the motor or stopping rotating the motor.

Abstract: An impact tool includes an electric motor, an impact mechanism, an acquisition unit, and a behavior decision unit (retreat detection unit). The electric motor includes a permanent magnet and a coil. The impact mechanism performs an impact operation that generates impacting force by receiving motive power from the electric motor. The behavior decision unit makes, based on at least one of a torque current acquisition value (current measured value) which is a value of a torque current acquired by the acquisition unit or an excitation current acquisition value (current measured value) which is a value of an excitation current acquired by the acquisition unit, a decision about behavior of the impact mechanism.

Abstract: An electric tool includes an electric motor (AC motor), an impact mechanism, and a control unit. The control unit includes an impact detecting unit. The control unit performs feedback control on an operation of the electric motor. In a following period after the impact detecting unit has detected that the impact mechanism has started an impact operation, the control unit changes target parameters in a preceding period before the impact detecting unit detects that the impact mechanism has started the impact operation into different target parameters. The target parameters include a control gain of the feedback control.

Abstract: An electric tool includes an AC motor (an electric motor) and a control unit. The AC motor includes a permanent magnet and a coil. The control unit is configured to perform control on operation of the AC motor. The control performed by the control unit includes field weakening control. In the field weakening control, the control unit causes a flux-weakening current to flow through the coil. The flux-weakening current is a current that generates, in the coil, a magnetic flux that weakens a magnetic flux of the permanent magnet.

Abstract: An electric power tool includes an electric motor (AC motor), an impact mechanism, an impact detecting unit, and a measuring unit. The impact mechanism performs an impact operation that generates impacting force by receiving motive power from the electric motor. The impact detecting unit determines whether or not the impact operation is being performed. The measuring unit measures at least one of a d-axis current or a q-axis current, each of which is supplied to the electric motor. The impact detecting unit determines, based on at least one of a measured value (current measured value) of the d-axis current or a measured value (current measured value) of the q-axis current, whether or not the impact operation is being performed. The measured values (current measured values) of the d-axis current and the q-axis current have been obtained by the measuring unit.

Abstract: In a power converter, a first DC-DC converter converts a DC voltage output from a DC power supply into a DC voltage of a different level. A DC-AC converter converts a DC power output from the first DC-DC converter into an AC power and supplies the AC power to an AC load. A variable load unit connected to a current path that branches from a node between the first DC-DC converter and the DC-AC converter. A controller adjusts the variable load unit so that a total of a power consumption in the AC load and a power consumption in the variable load unit is equal to or larger than a predetermined power value.

Abstract: A power control apparatus includes: a control unit that controls discharged power of a first battery and discharged power of a second battery; and a power acquisition unit that acquires a total power to be supplied from the first and second batteries to a load device connected to the first and second batteries. The control unit: in a first period, changes the discharged power of the first battery according to a change in the acquired total power, and changes the discharged power of the second battery toward a first direction in which the discharged power of the second battery approximates the discharged power of the first battery; and, in a second period after the first period, changes the discharged power of the second battery according to the change in the acquired total power, and changes the discharged power of the first battery toward a second direction opposite the first direction.

Abstract: A power control apparatus includes: a control unit that controls discharged power of a first battery and discharged power of a second battery; and a power acquisition unit that acquires a total power to be supplied from the first and second batteries to a load device connected to the first and second batteries. The control unit: in a first period, changes the discharged power of the first battery according to a change in the acquired total power, and changes the discharged power of the second battery toward a first direction in which the discharged power of the second battery approximates the discharged power of the first battery; and, in a second period after the first period, changes the discharged power of the second battery according to the change in the acquired total power, and changes the discharged power of the first battery toward a second direction opposite the first direction.

Abstract: The disclosed subject matter relates to a clinical thermometer that facilitates easy measurement operation while suitably illuminating a location where a probe is to be inserted. Measurement can be performed even while subjects wear a garment. The clinical thermometer can include the following: a main body having on the outer face thereof a display for temperature display and a housing that includes a measuring device configured for temperature measurement; and an elongated probe part extending from the main body in a first direction and including a temperature sensing device located at the tip of the probe part that abuts against a user's armpit. The clinical thermometer can include, in the region where the main body is joined to the base of the probe part, a shoulder part curved or bent in a direction that intersects the first direction. The main body can also include an illumination device configured to emit light in the direction along which the probe extends.

Abstract: The disclosed subject matter relates to a clinical thermometer that facilitates easy measurement operation while suitably illuminating a location where a probe is to be inserted. Measurement can be performed even while subjects wear a garment. The clinical thermometer can include the following: a main body having on the outer face thereof a display for temperature display and a housing that includes a measuring device configured for temperature measurement; and an elongated probe part extending from the main body in a first direction and including a temperature sensing device located at the tip of the probe part that abuts against a user's armpit. The clinical thermometer can include, in the region where the main body is joined to the base of the probe part, a shoulder part curved or bent in a direction that intersects the first direction. The main body can also include an illumination device configured to emit light in the direction along which the probe extends.

Abstract: The disclosed subject matter relates to a clinical thermometer that facilitates easy measurement operation while suitably illuminating a location where a probe is to be inserted. Measurement can be performed even while subjects wear a garment. The clinical thermometer can include the following: a main body having on the outer face thereof a display for temperature display and a housing that includes a measuring device configured for temperature measurement; and an elongated probe part extending from the main body in a first direction and including a temperature sensing device located at the tip of the probe part that abuts against a user's armpit. The clinical thermometer can include, in the region where the main body is joined to the base of the probe part, a shoulder part curved or bent in a direction that intersects the first direction. The main body can also include an illumination device configured to emit light in the direction along which the probe extends.

Abstract: [Problem] To provide a toothbrush, in which illumination of an interior of an oral cavity enables an assistant to grasp the state of the interior of an oral cavity of a person being assisted, and an uncomfortable strike against the interior of an oral cavity caused by a portion made of a hard material can be prevented as far as possible during brushing. [Means for Resolution] A toothbrush 10 comprising a head portion 31 formed on a surface thereof with a brush portion 55, a toothbrush body 11, and a shaft 25 that connects the head portion and the toothbrush body, the toothbrush body being provided with light emitting means 21 to irradiate light toward the head portion, the shaft being formed to permit the light to transmit therethrough, at least a surface of the head portion being formed with elastic portions 34, 36, and a tip end of the head portion being not formed with the elastic bodies and thereby provided with a tip-end light transmitting portion 37.

Abstract: This invention relates to a pacifier that may properly interest an infant of eight months old or older to make a preferable stimulation, for leading the infant to the next developmental stage of ingesting activity, or that can be used in a way for adapting to more advanced ingesting activity. A pacifier is provided with a nipple (11) and a shield plate (12) disposed at the base portion (13) of the nipple which has a predetermined width. The nipple is provided with a tip portion (15) having a width and a thickness, the width being larger than the thickness, to be formed into a flat shape, and an upper curved surface (19) formed at the upper surface of the tip portion so as to be convex at a central portion thereof.

Abstract: This invention provides an artificial nipple 210a. The artificial nipple comprises: a nipple portion 212a having a first curved surface, whose tip is provided with an opening portion 216a; a nipple body portion 211a formed on the nipple portion 212a, having a second curved surface, wherein the second curved surface of the nipple body portion 211a is continuously extended from the first curved surface of the nipple portion 212a, and wherein the second curved surface of the nipple body portion 211a is significantly expanded as a part of the second curved surface goes away from the nipple portion 212a; and a base portion 214a formed on the nipple body portion, wherein the base portion 214a is capable of being attached to a container to house a drink. According to the present invention, the nipple body portion 211a has a maximum outer diameter of 30 mm or more.

Abstract: This invention relates to a pacifier that may properly interest an infant of eight months old or older to make a preferable stimulation, for leading the infant to the next developmental stage of ingesting activity, or that can be used in a way for adapting to more advanced ingesting activity. A pacifier is provided with a nipple (11) and a shield plate (12) disposed at the base portion (13) of the nipple which has a predetermined width.

Abstract: This invention provides an artificial nipple 210a. The artificial nipple comprises: a nipple portion 212a having a first curved surface, whose tip is provided with an opening portion 216a; a nipple body portion 211a formed on the nipple portion 212a, having a second curved surface, wherein the second curved surface of the nipple body portion 211a is continuously extended from the first curved surface of the nipple portion 212a, and wherein the second curved surface of the nipple body portion 211a is significantly expanded as a part of the second curved surface goes away from the nipple portion 212a; and a base portion 214a formed on the nipple body portion, wherein the base portion 214a is capable of being attached to a container to house a drink. According to the present invention, the nipple body portion 211a has a maximum outer diameter of 30 mm or more.