| 摘要 |
A dental floss holder comprises a handle ( 11 ) and a cartridge ( 15, 40, 41, 42 ). The cartridge is U-formed and has a dental floss ( 20 ) fastened between its two legs ( 17, 18 ). The base ( 16 ) of the cartridge is somewhat bow-formed and arranged to be pushed into a straight groove ( 19 ) in the handle, and the dental floss is then automatically tensioned because the mounting forces the legs apart. |
