PROBLEM TO BE SOLVED: To provide an electric tooth brush capable of preventing the erroneous action of a switch and having a small size.SOLUTION: An electric tooth brush comprises: a trunk 11 a reduced diameter part 12 made continuous to said trunk 11 and having an external diameter smaller than said trunk 11 and a brush part 20 capable of being removably mounted on the leading end side of said reduced diameter part 12. On the side of said trunk 11 of said reduced diameter part 12, there is disposed a switch 13 equal to or slightly lower than the step between said trunk 11 and said reduced diameter part 12.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】スイッチの誤作動を防ぐことができ、かつ小型な電動歯ブラシを提供する。【解決手段】胴部11と、前記胴部11に連設され、かつ外径が前記胴部11よりも小さい縮径部12と、前記縮径部12の先端側に着脱可能なブラシ部20と、を備え、前記縮径部12の前記胴部11側には、高さが前記胴部11と前記縮径部12との段差と同じ又は若干低いスイッチ13が設けられている。【選択図】図1
