Title:
TOOTHBRUSH
Document Type and Number:
WIPO Patent Application WO/2022/247559
Kind Code:
A1
Abstract:
A toothbrush, comprising a brush head connecting rod (100), a connecting mechanism (200), and a toothbrush handle (300), the connecting mechanism (200) comprising a first connecting piece (210), a second connecting piece (220), and an elastic structural piece (230) connected to the second connecting piece (220), the first connecting piece (210) being rotatably connected to the second connecting piece (220) and the direction of extension of the rotating axis being the front-back direction, the elastic structural piece (230) comprising at least one reset torsion spring (231), the reset torsion spring (231) comprising a coil spring (2311) of a cylinder shape with the opening of the cylinder facing parallel to the direction of extension of a swing reference line and having a stop fit with the second connecting piece (220) in the direction perpendicular to the swing reference line, and a first torsion bar (2312) and second torsion bar (2313) respectively connected to the front and rear ends of the coil spring (2311). The present toothbrush has the effect of protecting the teeth.
More Like This:
| WO/1991/015138 | DISPENSING BRUSH |
Inventors:
XU ZHENWU (CN)
DAI XIAOGUO (CN)
DAI XIAOGUO (CN)
Application Number:
PCT/CN2022/089200
Publication Date:
December 01, 2022
Filing Date:
April 26, 2022
Export Citation:
Assignee:
SHANGHAI SHIFT ELECTRICS CO LTD (CN)
International Classes:
A46B5/00
Foreign References:
| CN215603806U | 2022-01-25 | |||
| GB2413268A | 2005-10-26 | |||
| CN103494434A | 2014-01-08 | |||
| JP2010017212A | 2010-01-28 | |||
| CN203828321U | 2014-09-17 | |||
| US5901397A | 1999-05-11 | |||
| JP2013226202A | 2013-11-07 | |||
| CN113180365A | 2021-07-30 | |||
| US4731896A | 1988-03-22 |
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
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