| 摘要 |
The application discloses an attachment for rotary manicuring units which provides a low-amplitude reciprocation of a cuticle-pushing member. A plurality of teeth or cam points are arranged about the axis of the unit in opposed rings which are biased away from each other by a resilient ring whose bias is overcome by a gentle pushing force of the tip of the pushing member against the cuticle to permit engagement of the opposing cam points and reciprocation of the pusher member. In the preferred form, the cam points are in the form of sharp teeth having a relatively gently sloping cam surface and a sharp drop for quick return of the opposed teeth into mutual engagement. The resilient ring preferably is in the form of a porous ring of synthetic material which is impregnated with a suitable lubricant for the cam points.
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