Title:
TOOTHBRUSH
Document Type and Number:
WIPO Patent Application WO/2020/262341
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a toothbrush that is gentle on the teeth and gums and that gives useability with a pleasant sensation, while easily preventing overbrushing. This toothbrush comprises: a head part (10) that is provided at a distal end in a longitudinal direction and that has a bristle surface (11); a gripping part (30) disposed further toward a rear end than the head part; a neck part (20) disposed between the bristle surface and the gripping part; and a deformation part (70) that includes a hard section (70H), which is disposed further toward the rear end than the bristle surface and which is formed from a hard resin, and a soft section (70E), which is formed from a soft resin and which coats at least a portion of the hard section. The deformation part is deformed by an external force in a first direction which orthogonally intersects the bristle surface and is compressed as a result of the hard section sandwiching the soft section in the longitudinal direction.
Inventors:
HATADA SATOSHI (JP)
Application Number:
PCT/JP2020/024501
Publication Date:
December 30, 2020
Filing Date:
June 23, 2020
Export Citation:
Assignee:
LION CORP (JP)
International Classes:
A46B5/00; A46B5/06
Domestic Patent References:
| WO1993015627A1 | 1993-08-19 |
Foreign References:
| JP2003500091A | 2003-01-07 | |||
| JP2013043040A | 2013-03-04 | |||
| DE202004002249U1 | 2005-06-23 | |||
| US20100299858A1 | 2010-12-02 |
Attorney, Agent or Firm:
TAZAKI Akira et al. (JP)
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