Title:
TOOTHBRUSH
Document Type and Number:
WIPO Patent Application WO/2018/079114
Kind Code:
A1
Abstract:
Provided is a toothbrush with which handle section maneuverability and intraoral maneuverability can be ensured. The toothbrush (1) is provided with an implanted bristle section (11), a head section (12), a neck section (13) and a handle section (14). The thickness t of the head section (12) is 2.0 mm to 4.0 mm. The minimum width W1 and the minimum thickness D1 of the neck section (13) are 3.0 mm to 4.5 mm. A curved surface (13a) with a circular arc contour, the center position of which is disposed on the implanted bristle surface side and the implanted bristle surface side of which is concave in side view, is formed at the back end of the neck section on the implanted bristle surface (12a)-side. The angle θ formed by a line N, which connects the thickness direction center point of the handle section (14) at the center of the toothbrush (1) gripping position and the thickness direction center point of the head section (12) at the center position of the implanted bristle section (11), and a plane P configuring the implanted bristle surface (12a) is 5.0 degrees to 10.0 degrees.
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Inventors:
KAMEI SEIICHI (JP)
KANAMARU NAOSHI (JP)
KANAMARU NAOSHI (JP)
Application Number:
PCT/JP2017/033093
Publication Date:
May 03, 2018
Filing Date:
September 13, 2017
Export Citation:
Assignee:
LION CORP (JP)
International Classes:
A46B5/00
Foreign References:
| JP2011030950A | 2011-02-17 | |||
| JP2005510330A | 2005-04-21 | |||
| JP2015091283A | 2015-05-14 | |||
| JPS50123071U | 1975-10-08 | |||
| JPH10215949A | 1998-08-18 | |||
| JP2009136615A | 2009-06-25 | |||
| US4780924A | 1988-11-01 |
Attorney, Agent or Firm:
TAZAKI Akira et al. (JP)
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