Title:
MECHANICAL TOOTHBRUSH
Document Type and Number:
WIPO Patent Application WO/2011/090298
Kind Code:
A2
Abstract:
The present invention relates to brushing the teeth, and more particularly, to a method for moving a toothbrush in a top down manner for the upper teeth and in a bottom up manner for the lower teeth. For this purpose, the mechanical toothbrush of the present invention is configured such that a handle of the toothbrush is closed/opened similar to one exercising with a hand gripper (an exercise tool for increasing grip strength), so as to convert the linear motion of a rack gear into a rotating motion, and thus enable the toothbrush to rotate from 0 to 180 degrees, and the rotating direction of the toothbrush can be changed using the rack gear and a rotation-converting frame. A tension spring is connected to a rotating shaft such that a toothed wheel of the rotating shaft is prevented from escaping from the rack gear, and the rotating shaft is fixed at the rotation-converting frame. The handle and the rack gear return to the original positions thereof by means of the elasticity of a torsion spring. A toothbrush-fixing frame enables the toothbrush to be conveniently replaced, and supports the toothbrush such that the toothbrush does not vibrate.
Inventors:
KIM, Jeong-pyo (101-ho, Sa-dong Samhwa-villa,901-22 Mansu 5-dong, Namdong-gu, Incheon 405-862, 405-862, KR)
Application Number:
KR2011/000337
Publication Date:
July 28, 2011
Filing Date:
January 17, 2011
Export Citation:
Assignee:
KIM, Jeong-pyo (101-ho, Sa-dong Samhwa-villa,901-22 Mansu 5-dong, Namdong-gu, Incheon 405-862, 405-862, KR)
International Classes:
A46B13/08
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Claims:
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