Vibrator motor
First Claim
1. An electric hair clipper comprisinga stationary blade fixed to a housing,a moving blade for reciprocating movement along a predetermined path adjacent said stationary blade, anda vibrator motor having a fixed magnetically permeable piece and a moving magnetically permeable piece forming a plurality of flux gap zones for substantial flux flow between said pieces, each of said flux gap zones having at least two air gaps between corresponding surfaces of said fixed and moving pieces;
- said fixed piece being secured to said housing, said moving piece being secured to said moving blade;
a mechanical spring system connected to said moving piece, at least one end of said mechanical spring system being secured to said housing to form a pivot point; and
means for generating varying magnetic fields between said fixed and moving pieces,said magnetic fields passing across said air gaps within said flux gap zones, said magnetic fields and said mechanical spring system causing said moving piece to oscillate along said predetermined path such that said gap furthest from said pivot point opens further than said gaps which are closer to said pivot point;
said flux gap zone furthest from said pivot point having at least a first primary flux pole in which a first selected surface of said fixed piece is generally perpendicular to said predetermined path, a second primary flux pole in which a second selected surface of said fixed piece is generally perpendicular to said predetermined path, and a first secondary flux pole between said first and second primary flux poles in which a third selected surface of said fixed piece is generally parallel to said predetermined path,one of said flux gap zones between said furthest gap zone and said pivot point having at least a first secondary flux pole in which a first selected surface of said fixed piece is generally parallel to said predetermined path, a second secondary flux pole in which a second selected surface of said fixed piece is generally parallel to said predetermined path, and a first primary flux pole between said first and second secondary flux poles in which a third selected surface of said fixed piece is generally perpendicular to said predetermined path, the total length of said first and second secondary flux poles of said one flux gap zone being about the same as the length of said primary flux pole.
1 Assignment
0 Petitions
Accused Products
Abstract
A vibrator motor for electric hair clippers, massagers and the like includes a fixed magnetically permeable piece and a moving magnetically permeable piece. The fixed and moving pieces form a plurality of flux gap zones between selected corresponding surfaces of the fixed and moving pieces.
Each of the flux gap zones has an air gap formed between the selected corresponding surfaces of the fixed piece and the moving piece. The air gaps have a total gap surface area, and an apparent gap surface area. The apparent gap surface area can be measured by viewing a selected surface which forms each gap through a plane which is generally perpendicular to the direction of the path of oscillating motion of the moving piece, or through a selected cross-section of the fixed or moving piece which is perpendicular to the path. In this invention, the total gap surface area of the gap in at least one of the flux gap zones is greater than the apparent gap surface area of that gap or gaps.
44 Citations
11 Claims
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1. An electric hair clipper comprising
a stationary blade fixed to a housing, a moving blade for reciprocating movement along a predetermined path adjacent said stationary blade, and a vibrator motor having a fixed magnetically permeable piece and a moving magnetically permeable piece forming a plurality of flux gap zones for substantial flux flow between said pieces, each of said flux gap zones having at least two air gaps between corresponding surfaces of said fixed and moving pieces; -
said fixed piece being secured to said housing, said moving piece being secured to said moving blade; a mechanical spring system connected to said moving piece, at least one end of said mechanical spring system being secured to said housing to form a pivot point; and means for generating varying magnetic fields between said fixed and moving pieces, said magnetic fields passing across said air gaps within said flux gap zones, said magnetic fields and said mechanical spring system causing said moving piece to oscillate along said predetermined path such that said gap furthest from said pivot point opens further than said gaps which are closer to said pivot point; said flux gap zone furthest from said pivot point having at least a first primary flux pole in which a first selected surface of said fixed piece is generally perpendicular to said predetermined path, a second primary flux pole in which a second selected surface of said fixed piece is generally perpendicular to said predetermined path, and a first secondary flux pole between said first and second primary flux poles in which a third selected surface of said fixed piece is generally parallel to said predetermined path, one of said flux gap zones between said furthest gap zone and said pivot point having at least a first secondary flux pole in which a first selected surface of said fixed piece is generally parallel to said predetermined path, a second secondary flux pole in which a second selected surface of said fixed piece is generally parallel to said predetermined path, and a first primary flux pole between said first and second secondary flux poles in which a third selected surface of said fixed piece is generally perpendicular to said predetermined path, the total length of said first and second secondary flux poles of said one flux gap zone being about the same as the length of said primary flux pole. - View Dependent Claims (2)
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3. A vibrator motor comprising:
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a fixed magnetically permeable piece and a moving magnetically permeable piece forming a plurality of flux gap zones for substantial flux flow between said pieces, each of said flux gap zones having at least two air gaps between corresponding surfaces of said fixed and moving pieces; said fixed piece being secured to a stationary portion; a mechanical spring system connected to said moving piece, at least one end of said mechanical spring system being secured to said stationary portion to form a pivot point; and means for generating varying magnetic fields between said fixed and moving pieces, said magnetic fields passing across said air gaps within said flux gap zones;
said magnetic fields and said mechanical spring system causing said moving piece to oscillate along a predetermined path such that said gap furthest from said pivot point opens further than said gaps which are closer to said pivot point;said flux gap zone furthest from said pivot point having at least a first primary flux pole in which a first selected surface of said fixed piece is generally perpendicular to said predetermined path, a second primary flux pole in which a second selected surface of said fixed piece is generally perpendicular to said predetermined path, and a first secondary flux pole between said first and second primary flux poles in which a third selected surface of said fixed piece is generally parallel to said predetermined path, one of said flux gap zones between said furthest gap zone and said pivot point having at least a first secondary flux pole in which a first selected surface of said fixed piece is generally parallel to said predetermined path, a second secondary flux pole in which a second selected surface of said fixed piece is generally parallel to said predetermined path, and a first primary flux pole between said first and second secondary flux poles in which a third selected surface of said fixed piece is generally perpendicular to said predetermined path, the total length of said first and second secondary flux poles of said one flux gap zone being about the same as the length of said primary flux pole of said one flux gap zone. - View Dependent Claims (4)
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5. An electric hair clipper comprising
a stationary blade fixed with respect to a housing, a moving blade for reciprocating movement along a predetermined path adjacent said stationary blade, and a vibrator motor having a fixed magnetically permeable piece and a moving magnetically permeable piece forming a plurality of flux gap zones for substantial flux flow between said pieces, each of said flux gap zones having at least one air gap between corresponding surfaces of said fixed and moving pieces; -
said fixed piece being secured to said housing, said moving piece being secured to said moving blade; a mechanical spring system connected to said moving piece, at least one end of said mechanical spring system being secured to said housing to form a pivot point; and means for generating varying magnetic fields between said fixed and moving pieces, said magnetic fields passing across said air gaps within said flux gap zones, said magnetic fields and said mechanical spring system causing said moving piece to oscillate along said predetermined path such that said gap furthest from said pivot point opens further than said gaps which are closer to said pivot point; at least one of said flux gap zones having at least a first secondary flux pole in which a first selected surface of said fixed piece is generally parallel to said predetermined path, a second secondary flux pole in which a second selected surface of said fixed piece is generally parallel to said predetermined path, and a first primary flux pole between said first and second secondary flux poles in which a third selected surface of said fixed piece is generally perpendicular to said predetermined path, the total length of said first and second secondary flux poles being about the same as the length of said first primary flux pole. - View Dependent Claims (6)
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7. A vibrator motor comprising:
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a fixed magnetically permeable piece and a moving magnetically permeable piece forming a plurality of flux gap zones for substantial flux flow between said pieces, each of said flux gap zones having at least one air gap between corresponding surfaces of said fixed and moving pieces; said fixed piece being secured to a stationary portion; a mechanical spring system connected to said moving piece, at least one end of said mechanical spring system being secured to said stationary portion to form a pivot point; and means for generating varying magnetic fields between said fixed and moving pieces, said magnetic fields passing across said air gaps within said flux gap zones, said magnetic fields and said mechanical spring system causing said moving piece to oscillate along a predetermined path such that said gap furthest from said pivot point opens further than said gaps which are closer to said pivot point; at least one of said flux gap zones having at least a first secondary flux pole in which a first selected surface of said fixed piece is generally parallel to said predetermined path, a second secondary flux pole in which a second selected surface of said fixed piece is generally parallel to said predetermined path, and a first primary flux pole between said first and second secondary flux poles in which a third selected surface of said fixed piece is generally perpendicular to said predetermined path, the total length of said first and second secondary flux poles being about the same as the length of said first primary flux pole. - View Dependent Claims (8)
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9. An electric hair clipper comprising
a stationary blade fixed with respect to a housing, a moving blade secured to said housing for reciprocating movement along a predetermined path adjacent said stationary blade, and a vibrator motor having a fixed magnetically permeable piece and a moving magnetically permeable piece forming a plurality of flux gap zones for substantial flux flow between said pieces, each of said flux gap zones having at least one air gap between corresponding surfaces of said fixed and moving pieces; -
said fixed piece being secured to said housing, said moving piece being secured to said moving blade; a mechanical spring system connected to said moving piece, at least one end of said mechanical spring system being secured to said housing to form a pivot point; and means for generating varying magnetic fields between said fixed and moving pieces, said magnetic fields passing across said air gaps within said flux gap zones, said magnetic fields and said mechanical spring system causing said moving piece to oscillate along said predetermined path such that said gap furthest from said pivot point opens further than said gaps which are closer to said pivot point; at least one of said flux gap zones having at least a first primary flux pole in which a first selected surface of said fixed piece is generally perpendicular to said predetermined path, a second primary flux pole in which a second selected surface of said fixed piece is generally perpendicular to said predetermined path, and a first secondary flux pole between said first and second primary flux poles in which a third selected surface of said fixed piece is generally parallel to said predetermined path.
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10. A vibrator motor comprising:
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a fixed magnetically permeable piece and a moving magnetically permeable piece forming a plurality of flux gap zones for substantial flux flow between said pieces, each of said flux gap zones having at least one air gap between corresponding surfaces of said fixed and moving pieces; said fixed piece being secured to a stationary portion; a mechanical spring system connected to said moving piece, at least one end of said mechanical spring system being secured to said stationary portion to form a pivot point; and means for generating varying magnetic fields between said fixed and moving pieces, said magnetic fields passing across said air gaps within said flux gap zones, said magnetic fields and said mechanical spring system causing said moving piece to oscillate along a predetermined path such that said gap furthest from said pivot point opens further than said gaps which are closer to said pivot point; at least one of said flux gap zones having at least a first primary flux pole in which a first selected surface of said fixed piece is generally perpendicular to said predetermined path, a second primary flux pole in which a second selected surface of said fixed piece is generally perpendicular to said predetermined path, and a first secondary flux pole between said first and second primary flux poles in which a third selected surface of said fixed piece is generally parallel to said predetermined path. - View Dependent Claims (11)
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Specification