US 12,447,640 B2
Razor
Zhijian Huang, Guangzhou (CN); Sanhu Wang, Guangzhou (CN); and Baoxian Guo, Guangzhou (CN)
Assigned to GUANGZHOU WEIDI TECHNOLOGY CO., LTD., Guangzhou (CN)
Filed by GUANGZHOU WEIDI TECHNOLOGY CO., LTD., Guangzhou (CN)
Filed on Mar. 29, 2023, as Appl. No. 18/127,972.
Claims priority of application No. 202320151764.5 (CN), filed on Feb. 3, 2023.
Prior Publication US 2024/0261991 A1, Aug. 8, 2024
Int. Cl. B26B 21/18 (2006.01); B26B 21/40 (2006.01); B26B 21/52 (2006.01)
CPC B26B 21/185 (2013.01) [B26B 21/4062 (2013.01); B26B 21/521 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A shaving head, wherein the shaving head comprises a cover body, a base, a blade and a blade adjustment unit; the cover body is provided with a cover plate arranged opposite to the base and partially covering the base, a blade slot is formed between the cover plate and the base; the base has at least a first side and a second side exposing outside the blade slot, wherein the first side is provided with at least two first comb teeth, and a first guide slot is formed between every two adjacent first comb teeth of the at least two first comb teeth; the second side is provided with at least two second comb teeth, and a second guide slot is formed between every two adjacent second comb teeth of the at least two second comb teeth; the first comb teeth is longer than the second comb teeth;
the blade slot receives the blade which has a first cutting edge facing the first side and a second cutting edge facing the second side; the first cutting edge and the second cutting edge are both exposed outside the blade slot but do not extend beyond the first side or second side of the base;
the base is further provided with at least one through-hole, and at least along one of the first side or the second side is arranged with the at least one through-hole which is at least partially covered by the first cutting edge and/or the second cutting edge respectively when the blade slot receives the blade;
the blade adjustment unit comprises an adjustment frame, comprising a bed and a contact block, wherein the bed has a first surface facing the base; the contact block is arranged on the first surface of the bed, passing through the through-hole and against the inside of the first and/or second cutting edge of the blade; the adjustment frame is movable to adjust the height of the contact block through the base.