Motor providing oscillating action for a personal care appliance
First Claim
1. A motor for providing periodic oscillating action for a personal care appliance, comprising:
- a stator portion;
an armature portion which includes a central torsion spring shaft fixed at one end thereof, a magnet mounting member which is affixed to the spring shaft in the vicinity of the other end thereof, the magnet mounting member including two opposing mounting portions, approximately 180°
apart, extending along a substantial portion of the length of opposing sides of the spring shaft and spaced apart therefrom, and magnet assemblies located near the ends of the two mounting portions, aligned for operative motor interaction with the stator portion; and
a driving assembly for driving the motor such that the armature oscillates through an angle less than 30°
.
2 Assignments
0 Petitions
Accused Products
Abstract
The motor assembly which produces an oscillating action for a personal care device includes a horizontally positioned U-shaped stator portion, and an armature portion which includes a torsion spring shaft which is anchored at one end thereof. The armature portion also includes a U-shaped magnet mounting member which is fixed near the upper end of the spring shaft, the U-shaped member including two opposing legs which extend along a substantial part of the length of the spring shaft, away therefrom. At the tips of each leg are magnet assemblies, which interact with the stator portion in alternating torsion, to produce a back-and-forth oscillation of the armature and a brushhead or other workpiece attached thereto.
53 Citations
9 Claims
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1. A motor for providing periodic oscillating action for a personal care appliance, comprising:
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a stator portion; an armature portion which includes a central torsion spring shaft fixed at one end thereof, a magnet mounting member which is affixed to the spring shaft in the vicinity of the other end thereof, the magnet mounting member including two opposing mounting portions, approximately 180°
apart, extending along a substantial portion of the length of opposing sides of the spring shaft and spaced apart therefrom, and magnet assemblies located near the ends of the two mounting portions, aligned for operative motor interaction with the stator portion; anda driving assembly for driving the motor such that the armature oscillates through an angle less than 30°
. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification