| 摘要 |
A hand-held dental floss holder, dispenser, floss tensioning, and floss advancing device. The device is configured with one end being a handle and the other being a pair of tips across which dental floss is spanned for presenting to inter-dental spaces. An internal supply of dental floss is housed inside the handle. The floss passes from the supply, moves around floss guides, wraps one or more times around a free spooling clutch spool, exits the body of the device through an opening and is directed to and across the tips of the device and is guided back to a collection spool rotationally connected to a manually-activated one way thumbwheel. In a first position, the gearing of a gear assembly and an internal clutch spool assembly causes the floss to tension when the thumbwheel is turned. In a second position, the disengagement of gearing allows the clutch spool to spool freely, allowing fresh floss to be substituted for used floss, when the thumbwheel is turned.
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