Vibratory linear actuator and electric toothbrush using the same
First Claim
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1. A vibratory linear actuator comprising:
- a stator having a through hole therein and a winding wire therearound,a movable member having a through hole therein and a member made of a magnetic material, said movable member being provided inside said through hole of said stator, so as to reciprocate in an axis direction upon an application of electric current to said winding wire,a shaft inserted into said through hole of said movable member so as to be movable reciprocally in relation to said movable member, anda coordinating member that enables said shaft to reciprocate in opposite phase to said movable member.
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Abstract
A vibratory linear actuator according to one embodiment of the present invention is comprised of a stator having a through hole therein and a winding wire therearound, a movable member having a through hole therein and a member made of a magnetic material, said movable member being provided inside said through hole of said stator, so as to reciprocate in an axis direction upon an application of electric current to said winding wire, a shaft inserted into said through hole of said movable member so as to be movable reciprocally in relation to said movable member, and a coordinating member that enables said shaft to reciprocate in opposite phase to said movable member.
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Citations
20 Claims
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1. A vibratory linear actuator comprising:
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a stator having a through hole therein and a winding wire therearound, a movable member having a through hole therein and a member made of a magnetic material, said movable member being provided inside said through hole of said stator, so as to reciprocate in an axis direction upon an application of electric current to said winding wire, a shaft inserted into said through hole of said movable member so as to be movable reciprocally in relation to said movable member, and a coordinating member that enables said shaft to reciprocate in opposite phase to said movable member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An electric toothbrush comprising:
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a housing extending between a pair of housing ends; at least one of said housing ends defining a housing end aperture; a stator defining a hole extending though said stator and including a winding wire wound about said stator, said stator disposed in said housing; a movable member defining a hole extending through said movable member and including a member comprising a magnetic material, said movable member disposed in said stator hole for reciprocating axially with respect to said stator in response to application of electric current to said winding wire; a shaft disposed in said moveable member hole and extending axially along said housing and through said housing end aperture; and a coordinating member disposed in said housing and configured to reciprocate said shaft in opposite phase to a reciprocating phase of said moveable member. - View Dependent Claims (18, 19, 20)
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Specification