Linear vibration motor
First Claim
1. A linear vibration motor comprising:
- a movable element equipped with a magnet portion and a weight portion;
a frame containing the movable element;
a coil, secured to the frame, driving the magnet portion along an axial direction;
an elastic member, disposed within the frame, applying, to the movable element, an elastic force that opposes the driving force that is applied to the magnet; and
a guide shaft, borne on the frame, guiding reciprocating vibration along the axial direction of the movable element, wherein;
the elastic member biases the movable element rotationally in one direction around the guide shaft andthe frame comprises a slide bearing portion supporting slidably a portion of the movable element that is rotationally biased.
1 Assignment
0 Petitions
Accused Products
Abstract
This abstract replaces all prior versions of abstract in the application. The linear vibration motor comprises a movable element that is equipped with a magnet portion and a weight portion; a frame that contains the movable element; a coil that is secured to the frame and that drives the magnet portion along an axial direction; an elastic member that is disposed within the frame and that applies, to the movable element, an elastic force that repels the driving force that is applied by the magnet portion; and a guide shaft 8 that is borne on the frame and that guides reciprocating motion of the movable element along the axial direction, wherein: the elastic member rotationally biases the movable element in one direction around the guide shaft 8, and the frame comprises a slide bearing portion (a slide plate) for bearing slidably a portion of the rotationally biased movable element.
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Citations
8 Claims
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1. A linear vibration motor comprising:
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a movable element equipped with a magnet portion and a weight portion; a frame containing the movable element; a coil, secured to the frame, driving the magnet portion along an axial direction; an elastic member, disposed within the frame, applying, to the movable element, an elastic force that opposes the driving force that is applied to the magnet; and a guide shaft, borne on the frame, guiding reciprocating vibration along the axial direction of the movable element, wherein; the elastic member biases the movable element rotationally in one direction around the guide shaft and the frame comprises a slide bearing portion supporting slidably a portion of the movable element that is rotationally biased. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification