Block head structure of electric toothbrush

Details Block head structure of electric toothbrush Block head structure of electric toothbrush

2005-02-08

2005-02-08

Chin, Randall (Department: 1744)

Brushing, scrubbing, and general cleaning

Machines

Brushing

C015S022100, C015S022200

Reexamination Certificate

active

06851150

ABSTRACT:
A block head structure for an electric toothbrush. The structure can be slipped over and connected to a driving end on the block handle of an electric toothbrush of different style. The structure includes a block head sleeve, a set of bristles, a driving axle bush and a connecting portion. The driving axle bush has an excavated section corresponding to the position of the driving axle. A bridge-like member is provided above the excavated section. When the driving axle is slipped into the axle hole, the inner side of the bridge-like member is elastically expanded outwardly by abutment and pressing of a driving surface on the driving axle, so that a reaction force is generated to forcedly press the driving surface. The driving axle bush is driven by the driving axle to move the set of bristles to rotate rightwards and leftwards repeatedly.

REFERENCES:
patent: 5213434 (1993-05-01), Hahn
patent: 6367108 (2002-04-01), Fritsch et al.

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