| 摘要 |
<p>An ion toothbrush which can be checked for a power source voltage by turning on a switch and can be assembled in a simplified process, and which comprises a head unit (50) where bristles (51) are planted, a handle unit (10) and a battery (14) housed in the handle unit (10) and conducted at one electrode of the battery (14) to the outer face of the handle unit (10) and at the other electrode to the vicinities of planting portions of bristles (51) of the head unit (50), the toothbrush further comprising a LED (18) having one terminal (18B) connected to one electrode of the battery (14) and the other terminal (18A) connected to the other electrode of the battery, a shaft (26) which allows the other electrode of the battery (14) to conduct to the vicinities of the planting portions and can be conducted to the terminal (18A), and a switch (22) for opening/closing an electric circuit including the LED (18), the shaft (26) and the battery (14).</p> |
