US 12,076,870 B2
Attachment comb, cutting head and hair cutting appliance
Luca Iaccarino, Groningen (NL)
Assigned to KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
Filed by KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
Filed on May 18, 2022, as Appl. No. 17/747,007.
Application 17/747,007 is a continuation of application No. 16/603,620, granted, now 11,364,646, previously published as PCT/EP2018/059472, filed on Apr. 12, 2018.
Claims priority of application No. 17166702 (EP), filed on Apr. 14, 2017.
Prior Publication US 2022/0274271 A1, Sep. 1, 2022
Int. Cl. B26B 19/20 (2006.01); B26B 19/06 (2006.01); B26B 19/38 (2006.01)
CPC B26B 19/20 (2013.01) [B26B 19/063 (2013.01); B26B 19/386 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An attachment comb for a blade set of a cutting head of a hair cutting appliance, the attachment comb comprising:
a supporting frame comprising opposite lateral walls and lateral lugs extending toward one another from the lateral walls in a lateral direction; and
a plurality of comb teeth that are arranged in a series in the lateral direction attached to and extending from the supporting frame,
wherein:
the plurality of comb teeth comprise two lateral teeth that respectively define outer lateral ends of the series and central teeth arranged between the lateral teeth,
the lateral teeth have rounded lateral teeth tips, respectively, each comprising a lateral teeth tip radius of a curvature of the rounded lateral teeth tips when the lateral teeth are viewed in the lateral direction,
the central teeth have rounded central teeth tips, respectively, each comprising a central teeth tip radius of a curvature of the rounded central teeth tips when the central teeth are viewed in the lateral direction,
the lateral teeth tip radius of each of the lateral teeth is greater than the central teeth tip radius of each of the central teeth,
the rounded lateral teeth tips and the rounded central teeth tips are configured to contact a skin of a user,
each of the lateral teeth further comprises a front side facing outwardly in a longitudinal direction away from the supporting frame, a rear side facing inwardly in the longitudinal direction opposite to the front side, and a skin contact side connecting the front side and the rear side, wherein the longitudinal direction is perpendicular to the lateral direction,
the rounded lateral teeth tip of each of the lateral teeth is convex and formed at a transition between the front side and the skin contact side, and a concave curvature adjoins the rounded lateral teeth tip along the front side of each of the lateral teeth, and
the rear side defines a mounting surface configured to cooperate with the lateral lugs for attaching the attachment comb to the blade set of the cutting head of the hair cutting appliance.