摘要 |
A powered toothbrush (10) is disclosed wherein a portion of the toothbrush head (20) is movable about a hinge (25). The movable portion (22) of the head reciprocates about that hinge through the interaction of a flexible extension (26) of that portion containing a slot (34). Movable within the slot is an offset end (36) of a rotating drive shaft (18) connected to the power source (14) in the toothbrush. Translation of rotation movement of the drive shaft to reciprocating movement of the hinged head (22) is achievable in a manner that the power source is not stalled or burned out if movement of the toothbrush head is prevented or limited. |