Attachment comb, cutting head and hair cutting appliance

An attachment comb, particularly a skin protecting comb, for a blade set of a cutting head of a hair cutting appliance, the attachment comb comprising:

• a supporting frame;
• and
• a plurality of comb teeth that are arranged in a series and that define a skin contact zone at a top side thereof,
• wherein:
• the plurality of comb teeth extend from the supporting frame and comprise rounded tips at frontal ends thereof,
• the plurality of comb teeth are non-uniform along the series and comprise two outer lateral teeth that define lateral ends of the series having rounded lateral tooth tips, and central teeth having rounded central teeth tips arranged therebetween,
• the lateral teeth comprise a lateral teeth tip radius (Rtl) corresponding to a curvature of the rounded lateral tooth tips when the lateral teeth are viewed in a side view perpendicular to the extension direction of the series of teeth,
• the central teeth comprise a central teeth tip radius (Rtc) corresponding to a curvature of the rounded central tooth tips when the central teeth are viewed in a side view perpendicular to the extension direction of the series of teeth, and
• at the lateral teeth, the lateral teeth tip radius (Rtl) is greater than the central teeth radius (Rtc), and
• the plurality of teeth further comprise a rear side facing the blade set in the mounted state, and a front side that is opposite to the rear side, wherein the top side where the skin contact zone is formed connects the front side and the rear side, wherein the rounded tips of the plurality of comb teeth are formed at a transition between the front side and the top side, wherein the rounded tips are convex, and wherein at the front side a concave curvature adjoins the rounded tips.