US 12,220,827 B2
Shaver head for an electric shaver
Geert-Jan Darwinkel, Winsum (NL); Alwin William De Vries, Zuidlaren (NL); Ivar Bosma, Oranjewoud (NL); and Marcus Cornelis Petrelli, Groningen (NL)
Assigned to KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
Appl. No. 17/779,166
Filed by KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
PCT Filed Nov. 25, 2020, PCT No. PCT/EP2020/083263
§ 371(c)(1), (2) Date May 24, 2022,
PCT Pub. No. WO2021/110492, PCT Pub. Date Jun. 10, 2021.
Claims priority of application No. 19213663 (EP), filed on Dec. 4, 2019.
Prior Publication US 2022/0402153 A1, Dec. 22, 2022
Int. Cl. B26B 19/14 (2006.01); B26B 19/38 (2006.01)
CPC B26B 19/146 (2013.01) [B26B 19/145 (2013.01); B26B 19/386 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A shaver head for an electric shaver comprising:
a base portion for connection of the shaver head to a main housing of the electric shaver;
a supporting portion mounted to the base portion;
a linear guiding structure for enabling the supporting portion to linearly move in a movement direction relative to the base portion between a retracted first position and an extended second position;
a spring member for biasing the supporting portion away from the base portion in the movement direction from the first position to the second position;
at least two hair-cutting units supported by the supporting portion, wherein each hair-cutting unit comprises an external cutting member with hair-entry openings and an internal cutting member with a plurality of cutting elements rotatable relative to the external cutting member;
a respective drive spindle for each hair-cutting unit; and
a locking mechanism for selectively setting the supporting portion in a locked condition, wherein the supporting portion unable to move in the movement direction relative to the base portion in the locked condition, or in an unlocked condition, wherein the supporting portion is able to move freely in the movement direction between the first and second positions relative to the base portion in the unlocked condition.