US 11,724,409 B2
Hair cutting appliance and blade set
Jan Bennik, Urk (NL); Robbert Freerk Johan Van der Scheer, Groningen (NL); Martinus Bernardus Stapelbroek, Frieschepalen (NL); Albert Jan Aitink, Drachten (NL); and Everhardus Johannes Hoexum, Groningen (NL)
Assigned to KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
Filed by KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
Filed on Sep. 6, 2022, as Appl. No. 17/903,116.
Application 17/903,116 is a continuation of application No. 15/035,878, granted, now 11,472,046, previously published as PCT/EP2014/075218, filed on Nov. 21, 2014.
Claims priority of application No. 13193969 (EP), filed on Nov. 22, 2013.
Prior Publication US 2022/0410418 A1, Dec. 29, 2022
Int. Cl. B26B 19/06 (2006.01); B26B 19/04 (2006.01); B26B 19/38 (2006.01)
CPC B26B 19/06 (2013.01) [B26B 19/046 (2013.01); B26B 19/3846 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A blade set of a hair cutting appliance, said blade set being arranged to be moved through hair in a moving direction to cut hair, said blade set being configured to pivot or swivel with respect to a housing of the hair cutting appliance, said blade set comprising:
a stationary blade comprising at least one toothed cutting edge, a lateral end, and a first surface that is arranged, when in use for shaving purposes, as a skin-contacting surface; and
a movable blade comprising a toothed cutting edge, wherein the movable blade is arranged to be reciprocally moved with respect to the stationary blade in a cutting direction (Y) that is substantially perpendicular to the moving direction; and
a lateral protecting element associated with the lateral end of the stationary blade, thereby defining a lateral end cap of the stationary blade, wherein the lateral protecting element laterally shields a lateral edge of the lateral end, such that, when in use, contact with skin by the lateral edge is prevented, and wherein the lateral protecting element and the lateral end cooperate so as to prevent hairs from being trapped there between,
wherein the stationary blade comprises a substantially flat first wall portion that is arranged, when in use, as a skin-facing wall portion, and a second wall portion facing away from the skin, wherein the movable blade is guided in a guide slot between the first wall portion and the second wall portion such that the stationary blade at least partially encloses the movable blade, and wherein a first thickness of the first wall portion is less than a second thickness of the second wall portion.