Brush body and toothbrush including brush body

(19)

(11)

EP 2 394 530 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	26.09.2012 Bulletin 2012/39

(43)	Date of publication A2:
	14.12.2011 Bulletin 2011/50

(21)	Application number: 11168341.3

(22)	Date of filing: 01.06.2011

(51)

International Patent Classification (IPC):

A46B 9/04^(2006.01)

A46B 15/00^(2006.01)

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
	Designated Extension States:
	BA ME

(30)

Priority:

14.06.2010 JP 2010135323

(71)	Applicant: Panasonic Corporation
	Osaka 571-8501 (JP)

(72)	Inventors:
	Uchida, Satoshi Kadoma-shi, Osaka 571-8686 (JP) Nagayama, Masayoshi Kadoma-shi, Osaka 571-8686 (JP)

(74)	Representative: Appelt, Christian W.
	Boehmert & Boehmert Pettenkoferstrasse 20-22 80336 München 80336 München (DE)

(54)	Brush body and toothbrush including brush body

(57) A brush body (20) of a toothbrush (1) includes bristle bundles (30), each formed by a plurality of filaments (40). Each filament includes a core (41), which contains a conductive material, and an insulative sheath (42), which covers a side of the core. Each bristle bundle includes a basal portion at which basal ends of the cores are fused, solidified, and integrated with one another. The bristle bundle also includes a distal portion, which is formed by a distal end of each core. A ratio of the conductive material at the basal portion is equal to a ratio of the conductive material at the distal portion.

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