US 11,986,086 B2
Interdental cleaning tool
Tasuku Kikkawa, Ibaraki (JP)
Assigned to KOBAYASHI PHARMACEUTICAL CO., LTD., Osaka (JP)
Appl. No. 17/050,539
Filed by KOBAYASHI PHARMACEUTICAL CO., LTD., Osaka (JP)
PCT Filed Apr. 26, 2019, PCT No. PCT/JP2019/017968
§ 371(c)(1), (2) Date Mar. 26, 2021,
PCT Pub. No. WO2019/208782, PCT Pub. Date Oct. 31, 2019.
Claims priority of application No. 2018-087036 (JP), filed on Apr. 27, 2018.
Prior Publication US 2023/0148742 A1, May 18, 2023
Int. Cl. A46D 1/00 (2006.01); A46B 9/02 (2006.01); A46B 9/04 (2006.01)
CPC A46B 9/026 (2013.01) [A46B 9/04 (2013.01); A46D 1/00 (2013.01); A46D 1/02 (2013.01); A46B 2200/108 (2013.01)] 4 Claims
OG exemplary drawing
 
1. An interdental cleaning tool comprising:
a base portion including a shaft portion having a shape insertable in an interdental space;
a top end side cleaning portion including a top end side body covering a top end side portion of the shaft portion, and a plurality of top end side bristles protruding outward from an outer circumferential surface of the top end side body; and
a base end side cleaning portion including a base end side body covering a portion of the shaft portion further in a base end side than the top end side body, and a plurality of base end side bristles protruding outward from an outer circumferential surface of the base end side body,
wherein the top end side bristles have lower hardness than the base end side bristles, and
wherein the top end side body has a lower hardness than the base end side body.