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AssigneeKoninklijke Philips Electronics N.V.
InventorsRobert Alexander Santhagens Van Eibergen, Johan Pragt, Jasper Zuidervaart
Estimating the term…
A shaving device which comprises a shaving head (1) having at least one cutting blade (5) and two skin-supporting members (11, 13), said skin-supporting members, viewed in the shaving direction, being arranged, respectively, in front of and behind said cutting blade, and defining a contact surface (17) between the shaving head and a skin surface (53) to be treated. The cutting blade and the skin-supporting members are mounted to a sub-frame (9), which is coupled to a main frame (19) and can be displaced with respect to said main frame against a spring force (Fs). The main frame comprises two further skin-supporting members (21, 23) which, viewed in the shaving direction, are arranged, respectively, in front of and behind the sub-frame and extend substantially in said contact surface. As a result, a contact force (Fc) between the skin surface and the skin-supporting members of the sub-frame and hence a skin curvature (ω2) between the skin-supporting members of the sub-frame, i.e. at the location of the cutting member, is mainly determined by the value of said spring force and, accordingly, substantially independent of a pressure force (Fp) exerted by a user to press the shaving head against the skin surface.
A shaver comprising a shaving head including at least one cutting blade and four skin-supporting members, the cutting blade having a cutting edge extending perpendicularly to a shaving direction of the shaving head, and the skin-supporting members being arranged, viewed in the shaving direction, respectively, in front of and behind the cutting blade and having skin-supporting surfaces extending substantially in an imaginary skin contact surface, the shaving head also including a main frame and a sub-frame, with two of the skin-supporting members secured to the main frame, and the cutting blade and two of the skin-supporting members secured to the sub-frame, the sub-frame coupled to the main frame by at least one spring unit and displaceable against a spring force, with respect to the main frame.
Dependencies are inferred from the claim text.