Title:
TOOTHBRUSH
Document Type and Number:
WIPO Patent Application WO/2022/014886
Kind Code:
A1
Abstract:
A toothbrush can comprise: a first toothbrush unit including a first toothbrush body and a first toothbrush head, which is provided at an end portion of the first toothbrush body; a second toothbrush unit including a second toothbrush body rotatably connected to the first toothbrush body, and a second toothbrush head provided at an end portion of the second toothbrush body to face the first toothbrush head; and an elastic member connected between the first toothbrush body and the second toothbrush body so that the first toothbrush head and the second toothbrush head brush the inner surface and the outer surface of the teeth upward and downward while torsionally rotating, when the first toothbrush body and the second toothbrush body make contact with the inner surface and the outer surface of the teeth in the horizontal direction.
Inventors:
KIM DONG JU (KR)
KIM WOO-HYUN (KR)
KIM WOO-HYUN (KR)
Application Number:
PCT/KR2021/007754
Publication Date:
January 20, 2022
Filing Date:
June 21, 2021
Export Citation:
Assignee:
KIM DONG JU (KR)
KIM WOO HYUN (KR)
KIM WOO HYUN (KR)
International Classes:
A46B5/00; A46B9/04
Foreign References:
| JP2000125940A | 2000-05-09 | |||
| KR930011927A | 1993-07-20 | |||
| KR20170067573A | 2017-06-16 | |||
| JPH0646525U | 1994-06-28 | |||
| JP3649405B2 | 2005-05-18 |
Attorney, Agent or Firm:
FIRSTLAW P.C. (KR)
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