Motor for providing a vibrating action for a radio pager
First Claim
Patent Images
1. A rotor assembly of a motor for providing a vibrating action, comprising:
- a flat cylindrical rotor having coils disposed around the entire periphery thereof and being fixed to and mounted on a shaft which turn as a unit inside of a casing; and
at least an eccentric weight embedded entirely within said coils and said said rotor.
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Accused Products
Abstract
A motor incorporated in a radio pager provides a vibrating action of the type used for alerting the user that he had received a call. A stator is affixed to the bottom of a casing. A rotor is in the form of a disk mounted on and affixed to a rotary a shaft and provided with coils therein. A weight having a sectorial shape is mounted on the top of the rotor in one embodiment and at the center of the coils in another embodiment.
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Citations
11 Claims
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1. A rotor assembly of a motor for providing a vibrating action, comprising:
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a flat cylindrical rotor having coils disposed around the entire periphery thereof and being fixed to and mounted on a shaft which turn as a unit inside of a casing; and at least an eccentric weight embedded entirely within said coils and said said rotor. - View Dependent Claims (2, 3, 4, 5)
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6. A motor for providing a vibrating action incorporated in a radio pager, comprising:
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a casing; a stator affixed inside of said casing and comprising a permanent magnet having a plurality of poles; a rotor mounted on and affixed to a shaft rotatably mounted inside of said casing, said rotor facing said stator, said rotor being provided with a plurality of coils which are uniformly arranged around a circumference of said rotor; and a weight eccentrically mounted within an arcuate part of said rotor, thereby giving an eccentric rotation having a vibrating action. - View Dependent Claims (7, 8)
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9. A motor for providing a vibrating action incorporated in a radio pager, said motor comprising:
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a casing; a stator affixed inside of said casing and comprising a permanent magnet having a plurality of poles; a rotor rotatably mounted on a shaft inside of said casing while facing said stator, said rotor being provided with a plurality of coils uniformly distributed around a circumference of said rotor; and a weight buried within a sector part of said rotor to cause an eccentric action upon a rotation of said rotor. - View Dependent Claims (10, 11)
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Specification