MINIATURE MOTOR
A MINIATURE MOTOR COMPRISING A CASE FORMED INTO A BOTTOMED HOLLOW CYLINDRICAL SHAPE AND HAVING A PERMANENT MAGNET (2) ON THE INNER CIRCUMFERENTIAL SURFACE THEREOF, A ROTOR (4) CONSISTING OF AN ARMATURE FACING THE PERMANENT MAGNET (2) AND A COMMUTATOR, AND AN END BRACKET (3) FITTED TO THE OPENING OF...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | A MINIATURE MOTOR COMPRISING A CASE FORMED INTO A BOTTOMED HOLLOW CYLINDRICAL SHAPE AND HAVING A PERMANENT MAGNET (2) ON THE INNER CIRCUMFERENTIAL SURFACE THEREOF, A ROTOR (4) CONSISTING OF AN ARMATURE FACING THE PERMANENT MAGNET (2) AND A COMMUTATOR, AND AN END BRACKET (3) FITTED TO THE OPENING OF THE CASE (1) AND HAVING BRUSHES FOR MAKING SLIDING CONTACT WITH THE COMMUTATOR AND INPUT TERMINALS ELECTRICALLY CONNECTED TO THE BRUSHES; THE ROTOR (4) BEING ROTATABLY SUPPORTED BY BEARINGS EACH PROVIDED ON THE BOTTOM OF THE CASE (1) AND ON THE END BRACKET (3), CHARACTERIZED IN THAT THE PERMANENT MAGNET (2) IS MADE OF A RUBBER OR PLASTIC MAGNET, A PLURALITY OF PROJECTIONS (12, 13) FOR FIXEDLY FITTING THE PERMANENT MAGNET (2) ARE PROVIDED ON THE BOTTOM OF THE CASE (1) AND/OR ON THE END BRACKET (3), AND THE PERMANENT MAGNET (2) IS FIXEDLY FITTED TO THE INNER CIRCUMFERENTIAL SURFACE OF THE CASE (1) BY FORCING THE PROJECTIONS ONTO AN END OF THE PERMANENT MAGNET (2) TO LOCALLY DEFORM THE END OF THE PERMANENT MAGNET (2). (FIGURE 2) |
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