US 12,290,818 B2
Ceramic cutting teeth-dovetailed cutting device of cutting-type rice milling machine
Jae Seung Yang, Cheonan-si (KR)
Assigned to SENONGTECH LTD., Cheongju-si (KR)
Appl. No. 17/623,198
Filed by SENONGTECH LTD., Cheongju-si (KR)
PCT Filed Mar. 23, 2021, PCT No. PCT/KR2021/003600
§ 371(c)(1), (2) Date Dec. 27, 2021,
PCT Pub. No. WO2021/225274, PCT Pub. Date Nov. 11, 2021.
Claims priority of application No. 10-2020-0053406 (KR), filed on May 4, 2020; and application No. 10-2020-0059022 (KR), filed on May 18, 2020.
Prior Publication US 2022/0355306 A1, Nov. 10, 2022
Int. Cl. B02B 3/04 (2006.01); B02B 3/06 (2006.01)
CPC B02B 3/04 (2013.01) [B02B 3/06 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A cutting device (100) of a cutting-type rice milling machine,
wherein the cutting device (100) has fitting grooves (12) in a length direction of the main cutting-device body (11) at equal intervals along an outer circumferential surface of the main cutting-device body (11),
wherein the fitting grooves (12) are dovetailed with cutting teeth (15) and spacer members (15b),
wherein the cutting teeth (15) are made of a sintered material, and the spacer members (15b) are made of a sintered material or the same material as a material of the main cutting-device body (11),
wherein the fitting grooves (12) have a structure in which a width between both fitting side-surfaces (12b) is narrowed as both fitting side-surfaces are more extended from a fitting bottom (12b), and
wherein the cutting teeth (15) have a shape of being narrowed from a bottom (15a) of each of the cutting teeth toward a cutting blade edge (18).