MOTOR FOR A PERSONAL SKIN CARE APPLIANCE
First Claim
1. A motor for a personal skin care appliance, the appliance including an appliance housing, wherein the motor drives a skin contact member, the motor comprising:
- an anchor member fixedly mounted to the applicator housing;
an electromagnetic stator member;
an armature which includes a permanent magnet assembly and two spring members which connect the anchor member to the armature, the springs being mounted at right angles to each other, wherein the ratio of the lengths of the spring members is within the range of 0.75;
1 to 0.95;
1; and
a driving assembly producing an alternating current drive signal for the stator member, resulting in the armature moving in opposing directions during successive half cycles of the drive signal, resulting in an oscillating motion of the skin contact member.
2 Assignments
0 Petitions
Accused Products
Abstract
The motor includes a rigid anchor member which is fixedly mounted to the applicator housing, an electromagnetic stator member and an armature. The armature includes a permanent magnet assembly and two leaf springs which connect the anchor member and the armature, the leaf springs being positioned at right angles to each other. The ratio of the lengths of the spring members is within the range of 0.75:1 to 0.95:1. A driving assembly produces an alternating current drive signal to the stator member which moves the armature and a skin contact member attached thereto in a reciprocating motion which includes a first component perpendicular to the skin, a second component parallel to the skin and a third arcuate component.
15 Citations
29 Claims
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1. A motor for a personal skin care appliance, the appliance including an appliance housing, wherein the motor drives a skin contact member, the motor comprising:
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an anchor member fixedly mounted to the applicator housing; an electromagnetic stator member; an armature which includes a permanent magnet assembly and two spring members which connect the anchor member to the armature, the springs being mounted at right angles to each other, wherein the ratio of the lengths of the spring members is within the range of 0.75;
1 to 0.95;
1; anda driving assembly producing an alternating current drive signal for the stator member, resulting in the armature moving in opposing directions during successive half cycles of the drive signal, resulting in an oscillating motion of the skin contact member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A personal skin care appliance, comprising:
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an appliance housing; a motor contained within the housing, having an applicator tip assembly which is moved in a reciprocating manner, wherein the applicator tip assembly includes a skin contact member, wherein the motor includes an anchor member fixedly mounted to the housing, an electromagnetic stator member;
an armature which includes a permanent magnet assembly and two spring members which connect the anchor member to the armature, wherein the spring members are mounted substantially at a right angle to each other, and wherein the ratio of the lengths of the spring members is within the range of 0.75;
1 to 0.95;
1 anda driving assembly producing an alternating current drive signal for the stator to move the armature in opposing directions during successive half cycles of the drive signal, resulting in an oscillating motion of the skin contact member. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification