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Patent Searching and Data


Title:
TOOTHBRUSH
Document Type and Number:
WIPO Patent Application WO/2020/138270
Kind Code:
A1
Abstract:
The objective of the present invention is to provide a toothbrush with which it is possible for a tooth row to be brushed accurately, one tooth at a time, while maintaining an appropriate brushing pressure. This toothbrush includes, on a rear end side of a bristle implanting surface (11), an anisotropic deforming portion (70) in which a bending strength in a first direction orthogonal to the bristle implanting surface is less than the bending strength in a second direction orthogonal to a long axis direction and to the first direction, wherein: the anisotropic deforming portion includes an elastic deformation portion (90) which connects a first region on a tip end side of the anisotropic deforming portion and a second region on a rear end side of the anisotropic deforming portion, and which is capable of deforming elastically in both the first direction and the second direction; and deflection loads when the head portion is displaced by standard displacement amounts of 10 mm, 20 mm, and 30 mm in the first direction while a grip portion is being supported are each lower than the deflection load when the head portion is displaced by a standard displacement amount of 10 mm in the second direction.

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Inventors:
HACHISUKA RYOSUKE (JP)
Application Number:
JP2019/051085
Publication Date:
July 02, 2020
Filing Date:
December 26, 2019
Export Citation:
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Assignee:
LION CORP (JP)
International Classes:
A46B5/00; A46B7/06
Foreign References:
JP2003265233A2003-09-24
JPH06504937A1994-06-09
JP2001299451A2001-10-30
Attorney, Agent or Firm:
TAZAKI Akira et al. (JP)
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