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US 2012/0233788 A1Published application
Electric toothbrush
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsTadanobu Kitagawa, Yoshihiro Kitamura
Life of this patent
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Abstract
On a tip of a main body case is formed a cylindrical brush attachment shaft tube to which a toothbrush head (holding unit) is removably attached. In a space within the cylindrical brush attachment shaft tube is disposed a motor to which an eccentric weight generating vibration is attached. Therefore, it is possible for the tip of the toothbrush head to approach the main body case side by the length of the cylindrical brush attachment shaft tube, thereby shortening the total length of an electric toothbrush.
Claims6
An electric toothbrush comprising:
- a toothbrush head;
- an oscillation generator formed by a motor including an eccentric weight;
- and
- a main body case attached in a removable manner to the toothbrush head and accommodating the oscillation generator;
- wherein the toothbrush head is attached to a brush attachment shaft tube at a distal end of the main body case, and the oscillation generator is arranged in the brush attachment shaft tube.
2 more elements
Dependencies are inferred from the claim text.