Motor-driven apparatus for cleaning spaces between teeth by dental floss
First Claim
1. Motor-driven apparatus for cleaning spaces between teeth by dental floss (FL) comprising an outer casing (10) provided with handle (40), a dental floss (FL) for cleaning the spaces between teeth, an electrical motor (11), a feeding reel (24) of the fresh dental floss, a take-up reel (25) of the worn-out dental floss, a set of stationary pulleys (20, 21A, 21B) around which the dental floss is running between the feeding reel (24) and the take-up reel (25), and reciprocating drive means (13, 15, 16) to reciprocate the operating length (33) of the dental floss (FL) as well as to keep it stretched and to replace the dental floss as it is worn-out characterized in that said electrical motor continuously rotating, drives reciprocating driving means (13, 15, 16, 18) for reciprocating said operating length (33) of the dental floss, comprising a first gear wheel of small diameter (13) mounted on said casing (10) and meshing with a gear (12) mounted on a shaft of said electrical motor (11);
- a crank (16) operated by said small gear wheel (13), a second gear wheel (14) of larger diameter, mounted on said casing (10) and meshed with said first gear (13), a rod (15) linked at one end to said crank (16), and a double pulley (18) mounted on the free end (19) of said rod and reciprocating therewith.
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Accused Products
Abstract
Motor-driven apparatus for cleaning spaces between teeth by dental floss comprising a dental floss for cleaning the spaces between teeth, motor means (11), a feeding reel (24) of the fresh dental floss, a take-up reel (25) of the worn-out dental floss, a set of pulleys (18, 20, 21A, 21B) about which the dental floss is running between feeding reel and take-up reel, and reciprocating motor means (13, 15, 16, 18) to reciprocate the operating length of the dental floss as well as to keep it stretched and to replace the dental floss as it is worn-out.
47 Citations
7 Claims
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1. Motor-driven apparatus for cleaning spaces between teeth by dental floss (FL) comprising an outer casing (10) provided with handle (40), a dental floss (FL) for cleaning the spaces between teeth, an electrical motor (11), a feeding reel (24) of the fresh dental floss, a take-up reel (25) of the worn-out dental floss, a set of stationary pulleys (20, 21A, 21B) around which the dental floss is running between the feeding reel (24) and the take-up reel (25), and reciprocating drive means (13, 15, 16) to reciprocate the operating length (33) of the dental floss (FL) as well as to keep it stretched and to replace the dental floss as it is worn-out characterized in that said electrical motor continuously rotating, drives reciprocating driving means (13, 15, 16, 18) for reciprocating said operating length (33) of the dental floss, comprising a first gear wheel of small diameter (13) mounted on said casing (10) and meshing with a gear (12) mounted on a shaft of said electrical motor (11);
- a crank (16) operated by said small gear wheel (13), a second gear wheel (14) of larger diameter, mounted on said casing (10) and meshed with said first gear (13), a rod (15) linked at one end to said crank (16), and a double pulley (18) mounted on the free end (19) of said rod and reciprocating therewith.
- View Dependent Claims (2, 3, 4, 5, 6, 7)
Specification