Title:
TOOTHBRUSH
Document Type and Number:
WIPO Patent Application WO/2022/137961
Kind Code:
A1
Abstract:
This toothbrush comprises: a toothbrush body having a grip part that is long along a center line, a neck part extending from a tip of the grip part, and a head part provided on the neck part on the side opposite to the grip part; and a brush part composed of a plurality of bristle bundles implanted on the head part. The toothbrush body includes: a base member that is composed of a hard resin and that has a grip part body, the neck part, and the head part; and a foam molded body provided on a surface of the grip part body and composed of a soft resin. The foam molded body has a fill part and a plurality of void parts, and the storage elastic modulus of the foam molded body is 104 Pa to 106.5 Pa.
Inventors:
NODA REONA (JP)
HACHISUKA RYOSUKE (JP)
HACHISUKA RYOSUKE (JP)
Application Number:
PCT/JP2021/043085
Publication Date:
June 30, 2022
Filing Date:
November 24, 2021
Export Citation:
Assignee:
LION CORP (JP)
International Classes:
A46B5/00
Foreign References:
| JPS5877538U | 1983-05-25 | |||
| JP2005287940A | 2005-10-20 | |||
| JP2017000407A | 2017-01-05 | |||
| JP2012121975A | 2012-06-28 |
Attorney, Agent or Firm:
TAZAKI Akira et al. (JP)
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