Title:
TOOTHBRUSH
Document Type and Number:
WIPO Patent Application WO/2024/004946
Kind Code:
A1
Abstract:
The objective of the present invention is to provide a toothbrush which has excellent design properties, and with which molding failure is suppressed even when applying a design having closed spaces or substantially closed spaces on both surfaces of a handle body. This toothbrush comprises a handle body (10) having a head portion and a grip portion, and includes a brush portion on a front surface of the head portion, wherein, in the handle body (10): at least a portion of a handle main body (30) is covered by a covering portion (40); a first space (50) is provided on one side of the handle body (30), as seen from a direction perpendicular to a long axis direction of the handle body (10), and a second space (60) is provided on the other side thereof; the first space (50) and the second space (60) are joined by means of a first through-passage (31); a second resin reaches from the first space (50) to the second space (60), through the first through-passage (31); and the second resin fills the first space (50), the first through-passage (31), and the second space (60).
Inventors:
SATO RYOSUKE (JP)
TAKAI RYOSUKE (JP)
TAKAI RYOSUKE (JP)
Application Number:
PCT/JP2023/023604
Publication Date:
January 04, 2024
Filing Date:
June 26, 2023
Export Citation:
Assignee:
LION CORP (JP)
International Classes:
A46B5/00
Foreign References:
| JP2021102085A | 2021-07-15 | |||
| JP2002336049A | 2002-11-26 | |||
| JP2007190439A | 2007-08-02 |
Attorney, Agent or Firm:
TAZAKI Akira et al. (JP)
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