Patent ID: 7305997

Claim:
A dental floss holder, comprising: a housing having a position base at an end thereof and an assembling zone at another end opposite to the position base, wherein the assembling zone defines a hollow interior forming an upper opening and a lower opening, the upper opening and the lower opening being substantially aligned over one another, the lower opening covered by a bottom board, a partition being defined inside the assembling zone between the upper opening and the lower opening defining an upper compartment and a lower compartment the partition having a hollow column therein, wherein the hollow column is defined transversely perforating the partition; a spool including a central tube for holding a roll of dental floss rotatably mounted to the hollow column of the assembly zone in the bottom compartment, said spool further includes a serrated wheel having zigzag recesses on peripheral sides thereof positioned at a side of the central tube adjacent to the bottom board; a fasten wheel positioned within the upper opening, having grooves on peripheral sides thereof, the fasten wheel further has a central opening wherein the central opening fits onto the hollow column within the assembly zone; a block member located adjacent to said fasten wheel and fixed to said housing; said block member including a pawl which engages the grooves of the fasten wheel for allowing the fasten wheel to move only in one direction; a sleeve defining a hollow axis therein and inserted through the central opening of the fasten wheel and into the hollow column to fix the fasten wheel to the assembly zone; a retrieving wheel having a top side and a bottom side, a shaft extending from the bottom side and being fitted onto the hollow axis of the sleeve, and a plurality of holes being defined for receiving, a first driving member on said bottom side and a second driving member arranged on a top side of the fasten wheel corresponding to and engaged with the first driving member; a fork having a root mounted on the position base, a pair of spaces-apart fork arms extending form the root and position holes located on a top the fork arms.