Motor-operated toothbrush bristle fastening structure

Details Motor-operated toothbrush bristle fastening structure Motor-operated toothbrush bristle fastening structure

1991-07-08

1992-08-18

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Machines

Brushing

151671, 15180, A61C 1716, A46B 1302

Patent

active

051387344

ABSTRACT:
A motor-operated toothbrush bristle fastening structure, comprising a brush head having two rows of stub rods fixedly disposed at two opposite sides, a plurality of gears respectively mounted on said stub rods with the ones on the same row of stub rods respectively engaged with one another and driven by a screw rod to carry a plurality of rotary wheels to rotate, which rotary wheels have each a bundle of bristles fastened therein for cleaning the teeth, and a plurality of spring coils respectively fastened in said gears to resiliently support said rotary wheels permitting the bundles of bristles to be moved up and down when they are carried by said rotary wheel and driven by said gears to rotate on said stub rods.

REFERENCES:
patent: 5068939 (1991-12-01), Holland
patent: 5070567 (1991-12-01), Holland

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