| 摘要 |
<p>Tightening device (10) for dental floss with an arch (26) to support the floss (77), said arch continuing to become a handle (16) that can be inserted inside a hollow handgrip (50) made to house a reel (75) of floss (76), there being between the handgrip (50) and the arch (26) a tongue (37) for cutting off a length (77) of floss (76) taken from the reel (75) and a threaded pin (34) with bush (45) for fixing the two ends of said length of floss (77) after it has been wound onto the arch (26).</p> |
