US 11,731,296 B2
Electric beard trimmer
Alois Koeppl, Weilrod (DE); Reinhold Eichhorn, Idstein (DE); Jana Schmitt, Wiesbaden (DE); and Martin Fuellgrabe, Bad Camberg (DE)
Assigned to Braun GMBH, Kronberg (DE)
Filed by Braun GmbH, Kronberg (DE)
Filed on Jan. 25, 2021, as Appl. No. 17/157,883.
Claims priority of application No. 20153387 (EP), filed on Jan. 23, 2020.
Prior Publication US 2021/0260781 A1, Aug. 26, 2021
Int. Cl. B26B 19/38 (2006.01); B26B 19/20 (2006.01); B26B 19/06 (2006.01)
CPC B26B 19/3846 (2013.01) [B26B 19/20 (2013.01); B26B 19/06 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A cutter system for an electric shaver and/or a trimmer, comprising a pair of cooperating first and second cutting elements movably supported relative to each other by a support structure, said first cutting element being provided in a flat plate-like configuration having a skin top side, two lateral non-hair cutting sides and two longitudinal sides each with a row of first cutting teeth, a motor driving said second cutting element in a movement direction, said second cutting element being provided on each of its longitudinal sides which extend parallel to the movement direction with a row of second cutting teeth and a flat main portion connecting both rows of said second cutting teeth, said second cutting element has a top side directed towards the first cutting element and an underside directed towards the support structure, wherein at least some of the second cutting teeth are uncovered at least at their tip portions at the underside of the second cutting element forming a discharge area for cut hair stubbles, the second cutting element is sandwiched between the first cutting element and said support structure, wherein said support structure includes a support element and at least one spacer defining a gap in which the sandwiched second cutting element is movably received, wherein said spacer forms a sliding guide for guiding the sandwiched second cutting element reciprocating or rotating along said spacer and said sandwiched second cutting element having a guiding recess in which the spacer is received, wherein said support element, said spacer and said first cutting element are rigidly connected to each other and form a rigid sandwiching frame having said gap in which the sandwiched second cutting element is slidably received and wherein said spacer and thus said gap having a thickness larger than the thickness of the sandwiched second cutting element by an amount smaller than 40 μm.