ELECTRIC TOOTHBRUSH

WIPO Patent Application WO/2014/082579

A1

An electric toothbrush comprises a toothbrush handle (1), a toothbrush rod (2) and a toothbrush head. The toothbrush head consists of a left-rotating hairbrush and a right-rotating hairbrush (3, 3'), which are oppositely and fixedly arranged on a toothbrush shaft (4). The right end of the toothbrush shaft (4) is arranged in a shaft hole at the upper end of the toothbrush rod (2) and is axially positioned on the shaft hole through the right-rotating hairbrush (3') and a shaft cap arranged at the right end of the toothbrush shaft (4); a power source in the toothbrush handle (1) is in driving connection with wheel teeth at the right side of the right-rotating hairbrush (3') through a driving shaft (5) in the toothbrush rod (2); and the bristles of both the left-rotating hairbrush and the right-rotating hairbrush (3, 3') consist of an inner ring of bristles and an outer ring of bristles (6, 6', 7, 7'). The toothbrush head of the electric toothbrush is simple in structure, small in volume, and convenient to move in mouth in the process of tooth brushing.

JP4709163	Cleaning utensil with reciprocating or rotating brush head
JP6297589	Dental equipment and how to use it
WO/2022/257501	LIFTING/LOWERING MECHANISM OF ELECTRIC TOOTHBRUSH

XU XIAOPING (CN)
SHEN SHIWEI (CN)

PCT/CN2013/087981

June 05, 2014

November 27, 2013

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HANGZHOU NEWLY TECHNOLOGY CO LTD (CN)

A61C17/26; A46B9/04

WO1989001303A1

1989-02-23

CN2699852Y	2005-05-18
US5177826A	1993-01-12
CN2788761Y	2006-06-21
CN201492532U	2010-06-02
CN102793591A	2012-11-28
DE20317780U1	2004-02-12
US7832043B1	2010-11-16
US20080052845A1	2008-03-06
CN102920520A	2013-02-13
CN203059956U	2013-07-17

HANGZHOU YUYANG PATENT OFFICE (INDIVIDUAL PARTNERSHIP) (CN)
杭州裕阳专利事务所（普通合伙） (CN)

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