Patent ID: 7665214

Claim:
A rotary electric shaver comprising a substantially disc-shaped outer cutter, which is provided in an upper part of a shaver main body housing therein a motor and is formed with a ring-shaped track on a lower surface thereof, and an inner cutter, which is provided with a cutter blade that elastically contacts said ring-shaped track of said outer cutter from below and is rotationally driven by said motor; wherein: said inner cutter is provided with a vibration element wherein said vibration element is in contact with said ring-shaped track of said outer cutter, said vibration element has a smaller spring constant, in a direction in which the cutter blade travels and in a direction opposite from a direction in which said cutter blade travels, than a spring constant of said cutter blade of said inner cutter and said vibration element is separate from and not in contact with said inner cutter; said inner cutter is comprised of: a cup-shaped central base portion, a supporting portion extending in a radial direction from said central base portion, and a cutter blade linking member which is comprised of a plurality of cutter blades linked in a ring shape and is secured to an upper surface of a tip portion of said supporting portion; and said vibration element is secured together with said cutter blade linking member to said supporting portion of said inner cutter; a vibration element linking member which is comprised of a plurality of vibration elements linked in a ring shape is superimposed on said cutter blade linking member and secured to said supporting portion of said inner; a stopper is formed integrally with said vibration element linking member; and the stopper comprises a front stopper provided in front of said vibration element in a direction of rotation and a rear stopper provided in back of said vibration element in a direction of rotation whereby said vibration element strikes both the front and rear stoppers to produce a sound.