| 摘要 |
To minimize the risk for injuries due to hooked hair catching teeth, but still have a reasonable hair-cutting efficiency, a cutting unit ( 107 ) for a hair-cutting device ( 100 ) having two blades ( 202, 206 ) moving relatively to each other with at least one of the blades ( 202, 206 ) being toothed is proposed, wherein at least some teeth ( 208 ) have a larger cross-sectional area (CA) at their free end ( 210 ) than at their end ( 212 ) making the junction with the blade ( 206 ), wherein the larger cross-sectional area (CA) is 0.3 mm2 or more and wherein the shape of the larger cross-sectional area (CA) is such that the tooth ( 208 ) surface oriented to face the surface ( 305 ) with hair ( 301 ) to be cut when cutting has a larger distance to the middle axis (M) than the equivalent surface of the blade-side-end ( 212 ).
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