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Title:
ELECTRIC TOOTHBRUSH
Document Type and Number:
Japanese Patent JP2005160498
Kind Code:
A
Abstract:

To provide an electric toothbrush of a high quality, which provides a high operability in the oral cavity, an excellent brushing feeling, and in addition, a high tooth-brushing effect.

The overall thickness (a) of a head section 7 including a brush section 2 is set to be 1.2 to 1.7 cm, and the ratio (c/b) of the thickness (b) of the head section 7 without including the brush section 2 and a maximum brush length (c) is set to be 0.9 to 1.5, and at the same time, a bristle cross sectional area is set to be 0.75 to 1.6 mm2. Also, a plurality of bristle bundles 12 constituting the brush section 2 are concentrically implanted in the circumference. At the same time, the bristle implanted area is set to be 0.6 to 1.6 cm2, and the bristle implanted density is set to be 25 to 35%. The bristle length of the bristle bundle 12 which is implanted in the outermost periphery is made longer than the bristle length of the bristle bundle 12 which is implanted in the innermost periphery.


Inventors:
Nakayama, Sachiko
Endo, Kazutoshi
Application Number:
JP2003000399429
Publication Date:
June 23, 2005
Filing Date:
November 28, 2003
Export Citation:
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Assignee:
LION CORP
International Classes:
A46B7/08; A46B9/04; A61C17/00; A61C17/22; (IPC1-7): A46B7/08; A46B9/04; A61C17/00; A61C17/22
Attorney, Agent or Firm:
藤井 紘一
依田 孝次郎



 
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