Title:
TOOTHBRUSH
Document Type and Number:
WIPO Patent Application WO/2017/155039
Kind Code:
A1
Abstract:
Provided is a toothbrush with which operability of a handle portion and operability inside the oral cavity can be ensured. In this toothbrush (1), which is provided with a bristle setting portion (11), a head portion (12), a neck portion (13), and a handle portion (14), the thickness t of the head portion (12) is 2.0-4.0 mm, inclusive, the minimum width W1 and minimum thickness D1 of the neck portion (13) are 3.0-4.5 mm, inclusive, the angle θ formed by a straight line N, which links a center point in the thickness direction of the handle portion (14) at a gripping center position of the toothbrush (1) and a center point in the thickness direction of the head portion (12) at a center position of the bristle setting portion (11), and a plane, which constitutes a bristle setting surface (12a), is 5.0-10.0 degrees, inclusive, and the distance h between the center point in the thickness direction of the handle portion (14) and the plane P is 6.0-12.0 mm, inclusive.
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Inventors:
KANAMARU NAOSHI (JP)
KAMEI SEIICHI (JP)
KAMEI SEIICHI (JP)
Application Number:
PCT/JP2017/009479
Publication Date:
September 14, 2017
Filing Date:
March 09, 2017
Export Citation:
Assignee:
LION CORP (JP)
International Classes:
A46B5/00; A46B9/04
Foreign References:
| JP2013118944A | 2013-06-17 | |||
| JPH0633520U | 1994-05-06 | |||
| JP2008154808A | 2008-07-10 | |||
| JPH0866235A | 1996-03-12 |
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
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