1results about How to "Effectively expand" patented technology

The present disclosure relates to a personal care device and a shaving cartridge, the personal care device comprising a base portion and at least one shaving unit provided on the base portion, the shaving unit comprising: a shaving moving knife having an axis of rotation and being configured to rotate about the axis of rotation in a predetermined direction, the shaving moving knife comprising a knife disc and a plurality of cutting blades located at one end face of the knife disc; a shaving cartridge having an outer base surface, an inner base surface, and an annular shaving track, the annular shaving track having a plurality of capture holes, and the capture holes having a front wall surface and / or a rear wall surface as viewed in the predetermined direction; wherein the intersection of the front wall surface and the rear wall surface with the outer base surface is defined as a contact edge, the projection of the contact edge on a plane perpendicular to the axis of rotation is configured as a curvilinear shape with varying curvature, and the curvature of the middle portion of the contact edge is greater than the curvature of the two end portions of the contact edge. The technical solution provided by the present disclosure can reduce the sliding resistance to the skin and improve the user experience.