| 摘要 |
A dry shaver (11) has a single cutter blade (15) and a single cooperating shear blade (17). The shear blade (17) is an elongate flexible foil, the thickness of which is different at different regions (21, 22) along the elongate extent of the foil (17). The foil (17) is mounted (27) for displacement in its elongate direction so that a foil region (21, 22) of a particular thickness may be selectively aligned with the cutter blade (15). The spacing between a skin engaging surface of the shear blade (17) and the opposite face of the shear blade (17) which cooperates with the cutter blade (15) is thus selectively variable. In a further embodiment, the dry shaver is of the rotary type and has a plurality of interchangeable shear blades of different thicknesses. In a still further embodiment, a rotary dry shaver has a mechanism for varying the spacing between the outer surface of a cover member overlying a shear blade and a cooperating rotary cutter blade.
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