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    • 8. 发明授权
    • Electric toothbrush with push-on protective cover
    • 电动牙刷带推动保护罩
    • US5309591A
    • 1994-05-10
    • US4467
    • 1993-01-14
    • Walter HagelePeter Hartwein
    • Walter HagelePeter Hartwein
    • A61C17/22A46B17/04
    • A61C17/225A61C17/22
    • The invention is directed to an electric toothbrush provided with a protective cover which is adapted to be pushed onto the handle section of the toothbrush. The protective cover protects in particular the drive shaft of the toothbrush extending from the handle section from contaminants, liquids as well as the impact of forces. The protective cover is further provided with a safety interlock preventing an accidental operation of the electric toothbrush when the protective cover is seated in place. A notch already provided is used for accomplishing a firm locking engagement of the protective cover with the handle section. The embodiments described cover both an integral and a two-part structure of the protective cover.
    • 本发明涉及一种具有保护盖的电动牙刷,其适于被推到牙刷的手柄部分上。 保护盖尤其保护牙刷的驱动轴,从手柄部分延伸出污染物,液体以及力的影响。 保护盖还设置有安全联锁,防止当保护罩就位时电动牙刷的意外操作。 已经提供的凹口用于实现保护盖与手柄部分的牢固的锁定接合。 所描述的实施例覆盖保护盖的整体和两部分结构。