Interdental cleaning tool

Patent metadata

Field	Value
Publication number	US-2021289934-A1
Application number	US-201917050557-A
Country	US
Kind code	A1
Filing date	Apr 26, 2019
Priority date	Apr 27, 2018
Publication date	Sep 23, 2021
Grant date	—

Abstract

An interdental cleaning tool that is easily insertable in an interdental space by a user and has a high cleaning capability includes a base portion including a shaft portion having a shape insertable in an interdental space, and a cleaning portion that covers at least a portion of the shaft portion and is capable of cleaning an interdental space. The shaft portion has a triangular cross section on an orthogonal plane perpendicularly intersecting an axial direction of the shaft portion.

First claim

1 : An interdental cleaning tool comprising:
a base portion including a shaft portion having a shape insertable in an interdental space; and a cleaning portion that covers at least a portion of the shaft portion and is capable of cleaning an interdental space, wherein the shaft portion has a triangular cross section on an orthogonal plane perpendicularly intersecting an axial direction of the shaft portion.

2 : The interdental cleaning tool according to claim 1 , wherein
the cleaning portion includes a cleaning portion body that covers the at least a portion of the shaft portion and has a lower hardness than the shaft portion, and the cleaning portion body has a circular cross section on the orthogonal plane.

3 : The interdental cleaning tool according to claim 1 , wherein
the cleaning portion includes a cleaning portion body that covers the at least a portion of the shaft portion, and the cleaning portion body has a triangular cross section on the orthogonal plane, vertexes of the triangular cross section being respectively on three virtual lines passing a central axis of the shaft portion and respective three vertexes of the triangular cross-section of the shaft portion.

4 : The interdental cleaning tool according to claim 2 , wherein
the cleaning portion further includes a brush portion having a shape protruding outward from an outer circumferential surface of the cleaning portion body, and the brush portion includes a plurality of bristles protruding outward from the outer circumferential surface of the cleaning portion body in a virtual plane encompassing the central axis of the shaft portion and a ridge line of an outer circumferential surface of the shaft portion.

5 : The interdental cleaning tool according to claim 1 , wherein the shaft portion has an isosceles triangular cross section on the orthogonal plane.

6 : The interdental cleaning tool according to claim 5 , wherein
the base portion includes a grip portion that is connected to the shaft portion and has a shape that can be held by fingers, the grip portion has a larger dimension in a first direction perpendicularly intersecting the axial direction than in a second direction perpendicularly intersecting both the axial direction and the first direction, and one of three sides of the triangle of the cross-section of the shaft portion is perpendicularly intersecting the first direction.

7 : The interdental cleaning tool according to claim 1 , wherein the cleaning portion is made of a composite material containing elastomer and a reinforcing material.

8 : The interdental cleaning tool according to claim 3 , wherein
the cleaning portion further includes a brush portion having a shape protruding outward from an outer circumferential surface of the cleaning portion body, and the brush portion includes a plurality of bristles protruding outward from the outer circumferential surface of the cleaning portion body in a virtual plane encompassing the central axis of the shaft portion and a ridge line of an outer circumferential surface of the shaft portion.

9 : The interdental cleaning tool according to claim 2 , wherein the shaft portion has an isosceles triangular cross section on the orthogonal plane.

10 : The interdental cleaning tool according to claim 3 , wherein the shaft portion has an isosceles triangular cross section on the orthogonal plane.

11 : The interdental cleaning tool according to claim 4 , wherein the shaft portion has an isosceles triangular cross section on the orthogonal plane.

12 : The interdental cleaning tool according to claim 2 , wherein the cleaning portion is made of a composite material containing elastomer and a reinforcing material.

13 : The interdental cleaning tool according to claim 3 , wherein the cleaning portion is made of a composite material containing elastomer and a reinforcing material.

14 : The interdental cleaning tool according to claim 4 , wherein the cleaning portion is made of a composite material containing elastomer and a reinforcing material.

15 : The interdental cleaning tool according to claim 5 , wherein the cleaning portion is made of a composite material containing elastomer and a reinforcing material.

16 : The interdental cleaning tool according to claim 6 , wherein the cleaning portion is made of a composite material containing elastomer and a reinforcing material.

Assignees

• Kobayashi Pharmaceutical Co Ltd

Inventors

• Kikkawa Tasuku

Classifications

• A46B3/04

  by mouldable materials, e.g. metals, cellulose derivatives, plastics (A46B1/00 takes precedence) · CPC title

• A46B9/045 Primary

  specially adapted for cleaning a plurality of tooth surfaces simultaneously · CPC title

• A61C15/02

  Toothpicks · CPC title

• A46B2200/108

  Inter-dental toothbrush, i.e. for cleaning interdental spaces specifically · CPC title

• A46B9/021 Primary

  arranged like in cosmetics brushes, e.g. mascara, nail polish, eye shadow · CPC title