| 摘要 |
<p>PURPOSE: To reduce the vertical load of a motor shaft and the oscillation of an oscillation member respectively by arranging the rotation center of a driven gear on a straight line passing through a center in the reciprocating direction of the oscillating member and arranging symmetrically with respect to the rotation center of a motor connected with a driving gear. CONSTITUTION: At the time of energizing a motor 30 from a battery 120, a motor shaft 31 is rotated and a driving gear 32 force-fitted to this respectively drives respective driven gears 33 and 33a fitted to this. Then, an eccentric shaft 34 pivotally supported at the upper parts of the respective gears 33, 33a is eccentrically rotated and an elastic piece 12 engaged with a connecting shaft 13 on the inner wall of each oscillator 10 through a connecting link 35. Consequently, each oscillator 10 is reciprocated and inner blades 80 fixed to the head parts of these are reciprocated to cut beard sucked into the beard introducing hole of an outer blade 70. Then, the rotation centers of the respective gears 33 and 33a are arranged on a straight line passing through a center in the reciprocating direction of each oscillator 10 and arranged symmetrically with respect to the rotation center of the motor 30.</p> |
