Motorized anti-plaque toothbrush
First Claim
1. A motorized anti-plaque toothbrush comprising:
- a tubular shaft;
a handle removably connected to one end of said tubular shaft;
an outer shell mounted on the other end of said tubular shaft;
a brushing head mounted on the other end of said tubular shaft and rotatable about an axis approximately perpendicular to a longitudinal axis of the tubular shaft, said brushing head comprising at least two separate cleaning/massaging tool parts coaxially supported inside the outer shell and rotatable relative to each other;
a drive shaft housed inside the tubular shaft;
a motor housed inside the handle and dynamically connectable to the drive shaft for providing a continuous rotary motion to the drive shaft about a longitudinal axis perpendicular to the axis of rotation of the brushing head; and
transmission means comprising a spindle rotatably coupled to the drive shaft and dynamically engaged with the brushing head for transmitting rotary motion from the drive shaft to the brushing head and converting the continuous rotary motion of the drive shaft into a reciprocating rotation of the tool parts in phase opposition to one another.
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Accused Products
Abstract
A motorized anti-plaque toothbrush comprises a handle (1) at one end of which is a cleaning/massaging head (3), in particular a brushing head, which rotates about an axis which is approximately perpendicular to the longitudinal axis of the handle (1) and is turned with a continuous one-way rotary motion or with a reciprocating rotary motion by a motor, preferably an electric motor, housed in the handle (1). According to the invention, the cleaning/massaging head (3) is composed of at least two separate cleaning/massaging tool parts (4, 5) that are supported coaxially with respect to each other in such a way that they can rotate relative to each other, being turned in mutually opposite directions in the case of continuous one-way rotation and in phase opposition to each other in the case of reciprocating rotation.
187 Citations
15 Claims
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1. A motorized anti-plaque toothbrush comprising:
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a tubular shaft; a handle removably connected to one end of said tubular shaft; an outer shell mounted on the other end of said tubular shaft; a brushing head mounted on the other end of said tubular shaft and rotatable about an axis approximately perpendicular to a longitudinal axis of the tubular shaft, said brushing head comprising at least two separate cleaning/massaging tool parts coaxially supported inside the outer shell and rotatable relative to each other; a drive shaft housed inside the tubular shaft; a motor housed inside the handle and dynamically connectable to the drive shaft for providing a continuous rotary motion to the drive shaft about a longitudinal axis perpendicular to the axis of rotation of the brushing head; and transmission means comprising a spindle rotatably coupled to the drive shaft and dynamically engaged with the brushing head for transmitting rotary motion from the drive shaft to the brushing head and converting the continuous rotary motion of the drive shaft into a reciprocating rotation of the tool parts in phase opposition to one another. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification