| 摘要 |
PROBLEM TO BE SOLVED: To disclose a constitution which make an intrinsically small interdental brush larger to an appropriate size and enables it to be carried conveniently and hygienically. SOLUTION: This interdental brush consists of a brush body and a screw-out container which holds the brush body, allowing it to freely put our or pull in. In the brush body, a brush part having a filament is attached to a rein-made shaft. In the rotary extruder, there are a rotating part provided with a support cylinder that rotates within a cylindrical casing together with a knob on the end of the cylindrical casing, a stem part that is connected to the support cylinder in the rotating part with screws, and an extruding part that can move up and down within the casing through the conversion of the rotary movement in the rotating part into the up-and-down movements of the extruding part.
|
