ЭЛЕКТРИЧЕСКАЯ ЗУБНАЯ ЩЕТКА С ПРОВЕРОЧНОЙ КНОПКОЙ

摘要

A powered operating device such as a powered toothbrush includes a test button for momentarily testing the operability of the device. The test button simultaneously presses against both the on portion and the off portion of the switch which controls the operation of the device. While pressure is applied to the test button, the device is placed in its operative condition and when the pressure is released, the geometric structure of the test button held by the package releases the on portion of the switch at the same time or just before the off portion. Thus, assuring that the switch turns off.