Abstract: There is provided an electric toothbrush with which teeth can be brushed in a relaxed pose while imperfect brushing is suppressed. In an electric toothbrush including: a body portion that is gripped by a hand during toothbrushing; and a brush component serving as an intraoral insertion portion inserted in a mouth cavity during the toothbrushing, the brush component including a brush at a leading end thereof, the brush component is inclined onto a rear surface side of the brush from the leading end toward the body portion, and a leading end portion of the brush component is located in a vicinity of an extended line (alternate long and short dash line) of a virtual line that connects centroids of sectional shapes perpendicular to a longitudinal direction in the body portion.

Abstract: A three-axis acceleration sensor is mounted to a body of an electric toothbrush. A CPU detects the three-dimensional attitude of the body based on an output from the acceleration sensor and, based on the attitude of the toothbrush, estimates which portion is being brushed. Then, the CPU measures by using a timer a brushing time of the portion being brushed. Results of brushing for each portion are evaluated and outputted based on the measured brushing time.

Abstract: An electric toothbrush includes a driving source; a vibrating member having a brush; a transmission mechanism which converts an output of the driving source into vibration of the vibrating member; and a control unit that controls the output of the driving source. The vibrating member has a first resonance point in which the brush resonates in a first direction, and a second resonance point in which the brush resonates in a second direction; and the control unit has a first operation mode which controls the output of the driving source so that a resonance in the first direction is generated, and a second operation mode which controls the output of the driving source so that a resonance in the second direction is generated.

Abstract: There is provided an electric toothbrush with which teeth can be brushed in a relaxed pose while imperfect brushing is suppressed. In an electric toothbrush including: a body portion that is gripped by a hand during toothbrushing; and a brush component serving as an intraoral insertion portion inserted in a mouth cavity during the toothbrushing, the brush component including a brush at a leading end thereof, the brush component is inclined onto a rear surface side of the brush from the leading end toward the body portion, and a leading end portion of the brush component is located in a vicinity of an extended line (alternate long and short dash line) of a virtual line that connects centroids of sectional shapes perpendicular to a longitudinal direction in the body portion.

Abstract: A three-axis acceleration sensor is mounted to a body of an electric toothbrush. A CPU detects the three-dimensional attitude of the body based on an output from the acceleration sensor and, based on the attitude of the toothbrush, estimates which portion is being brushed. Then, the CPU measures by using a timer a brushing time of the portion being brushed. Results of brushing for each portion are evaluated and outputted based on the measured brushing time.

Abstract: An electric toothbrush includes a driving source; a vibrating member having a brush; a transmission mechanism which converts an output of the driving source into vibration of the vibrating member; and a control unit that controls the output of the driving source. The vibrating member has a first resonance point in which the brush resonates in a first direction, and a second resonance point in which the brush resonates in a second direction; and the control unit has a first operation mode which controls the output of the driving source so that a resonance in the first direction is generated, and a second operation mode which controls the output of the driving source so that a resonance in the second direction is generated.

Abstract: A vibrator has massaging balls supported by a treating unit that may be shifted along a subject portion for treatment, guided by guiding members. The treating unit is supported by a supporting structure with respect to the guiding members. A position or orientation altering mechanism is provided for altering the position of the treatment unit in a direction orthogonal to the direction of its shifting or the orientation of the treating unit with respect to the guiding members. The supporting structure may include an engaging unit that engages the guiding members and an arm for supporting the engaging unit.

Abstract: A vibrator has massaging balls supported by a treating unit that may be shifted along a subject portion for treatment, guided by guiding members. The treating unit is supported by a supporting structure with respect to the guiding members. A position or orientation altering mechanism is provided for altering the position of the treatment unit in a direction orthogonal to the direction of its shifting or the orientation of the treating unit with respect to the guiding members. The supporting structure may include an engaging unit that engages the guiding members and an arm for supporting the engaging unit.

Abstract: An air conditioning unit for a vehicle has a unit case enclosing a blower fan, a cooling heat exchanger (evaporator) and a heating heat exchanger (heater core), and defining therein an air conditioning passage for conveying air from the blower fan through the cooling heat exchanger and the heating heat exchanger, to an upper outlet opening. The air conditioning passage has an upstream passage section extending downward on a first side of the blower fan to convey the air from the blower fan downward, an intermediate passage section extending under the blower fan in a first direction from the first side to a second side of the blower fan, and a downstream passage section extending upward on the second side of the blower fan to the upper outlet opening for directing the air over the blower fan in a second direction, opposite to the first direction, from the second side toward the first side (toward the passenger compartment of the vehicle).

Abstract: An angle of rotation detector has a drive unit which supplies 90 degree phase shifted signals to a pair of stator coils and measures an analog output from a rotor coil in a resolver. A calculating device calculates the rotational angle of the resolver using the output of an analog to digital converter receiving the analog output of the rotor. In one embodiment, the calculating device performs a Fourier transform to compute the phase of a fixed frequency component contained in the output of the rotor coil. In another embodiment, the drive unit supplies signals wherein f(T/2+t)=-f(t) and the calculating device performs a Fourier transform using data from successive half periods of the drive waveform. In another embodiment, the output of the rotor is sampled at 1/4 period of an excitation signal from the drive unit and the calculating device determines the phase difference between the excitation signal and the rotor output.

Abstract: A function inspection system having a plurality of inspection units for inspecting the operation of an electronic appliance. The system includes a system of traversers which convey the electronic appliance to different inspection units. The inspection units inspect different functions of the electronic appliance. The traversers are controlled by a controller. The electronic appliance is a printed circuit board in the preferred embodiments.