Mechanically-driven, sonic toothbrush system
First Claim
Patent Images
1. A toothbrush comprisinga handle;
- a brush head having a first end connected to the handle and a plurality of bristles positioned on a second end opposite the first end;
a motor received within the handle;
a brush shaft connected to the brush head and connected to the motor; and
a linkage coupled between the motor and the brush shaft, the linkage comprisinga coupler having a first end operably coupled to the brush shaft and a second end; and
an eccentric pin connected to the motor and rotationally received at least partially within the second end of the coupler, the eccentric pin having a first axis axially aligned with an output axis of the motor and a second axis axially offset from the output axis of the motor.
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Abstract
A sonic toothbrush system includes an electric motor, a brush shaft, and a drive assembly. The electric motor includes a drive shaft. When the electric motor is caused to operate, the drive shaft continuously rotates until the motor is caused to stop. The drive assembly is coupled between the drive shaft and the brush shaft. The drive assembly is configured to convert the rotation of the drive shaft into sonic oscillation of a toothbrush head supported on an end of the brush shaft.
792 Citations
16 Claims
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1. A toothbrush comprising
a handle; -
a brush head having a first end connected to the handle and a plurality of bristles positioned on a second end opposite the first end; a motor received within the handle; a brush shaft connected to the brush head and connected to the motor; and a linkage coupled between the motor and the brush shaft, the linkage comprising a coupler having a first end operably coupled to the brush shaft and a second end; and an eccentric pin connected to the motor and rotationally received at least partially within the second end of the coupler, the eccentric pin having a first axis axially aligned with an output axis of the motor and a second axis axially offset from the output axis of the motor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A cleaning device providing oscillating motion comprising
a handle member; -
a cleaning attachment connected to the handle member and having a plurality of cleaning members; a drive system housed within the handle member and having a drive axis; an output shaft housed within the handle member and having a distal end coupled to the cleaning attachment and a proximal end; and a coupling member having a first end coupled to the proximal end of the output shaft and a second end; and an eccentric member secured to the drive system and rotationally received within the second end of the coupling member, the eccentric member having a first portion axially aligned with the drive axis and a second portion axially offset from the drive axis. - View Dependent Claims (14, 15, 16)
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Specification