PROBLEM TO BE SOLVED: To provide an oral cavity washing tool which can be stably gripped by both of pen grip and palm grip.SOLUTION: An oral cavity washing tool is configured so that a grip part 2 comprises the rugged pattern in which four recess parts 5-8 and five salient parts 9-13 are arranged alternatively. When a user grips the tool by pen grip, the first recess part 5 is sandwiched by a second finger and a third finger, the third recess part 7 is mounted on a root part on a palm side of the second finger, and the second recess part 6 on the second salient part 10 side is pressed to a neck 3 side by the first finger, the grip part 2 of the tool is gripped by fingers of a human being, similar to gripping a pencil. When the tool is gripped by palm grip, the first recess part 5 which is positioned on the first position from the neck 3 side is gripped by the second finger 22 of a hand of the human being, the second recess part 6 is gripped by the third finger, the third recess part 7 is gripped by the fourth finger, the fourth recess part 8 are gripped by the fifth finger, and the first recess part 5 on the first salient part 9 side is pressed by the first finger to the second finger side, so that, the grip part 2 of the tool is gripped by a palm.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】ペングリップとパームグリップとのどちらでも安定して持つことができる口腔掃除具の提供。【解決手段】把手部2が4箇の凹部5乃至8と5個の凸部9乃至13とを交互に配置した凹凸形状であって、ペングリップで持つときは、1番目の凹部5が第2指と第3指とで挟まれ、3番目の凹部7が第2指の手の平の側の付け根部の上に載せられ、2番目の凹部6の2番目の凸部10の側が第1指でネック部3の側に押すことにより、人の手が把手部2を鉛筆を持つように握って持つように構成され、パームグリップで持つときは、ネック部3の側から数えて1番目の凹部5が人の手の第2指22で握られ、2番目の凹部6が第3指で握られ、3番目の凹部7が人の手の第4指で握られ、4番目の凹部8が第5指で握られ、1番目の凹部5の1番目の凸部9の側を第1指で第2指の側に押すことにより、人の手が把手部2を手のひらで握るように持つように構成されている。【選択図】図1
