Abstract: The object of the present invention is to shorten the dimension in the axial direction to achieve compactness. The present invention has a movable element integrally provided with a magnet portion, weight portions, and shafts; a frame accommodating the movable element and enabling reciprocating motion thereof along a axial direction; a coil secured to the frame and drives the magnet portion along the axial direction; and elastic members exerting, on the movable element, elastic forces repelling the driving forces that act on the magnet portion. The shafts each extend toward a side along the axial direction. Tip ends of the shafts are configured as free ends. Bearings slidably supporting the shafts are secured to the frame. The weight portions have recessed portions that are formed along the axial direction. The shafts and the bearings are disposed in the spaces within the recessed portions.

Abstract: A linear vibration motor comprises: a movable element that comprises a magnet portion, a weight portion, and a yoke; a frame for enclosing the movable element; a coil, secured to the frame, for applying a driving force to the magnet portion so as to cause the movable element to undergo reciprocating vibration along the axial direction; and an elastic member for applying, to the movable element, an elastic force that repels the driving force that is applied to the magnet portion, wherein: a magnetic material portion (a magnetic material piece) that extend along the direction of vibration of the movable element is provided on an inner surface of the frame, and the yoke has a raised portion near the magnetic material portion (the magnetic material piece).

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.

Abstract: 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.

Abstract: A linear vibration motor comprises: a movable element that comprises a magnet portion, a weight portion, and a yoke; a frame for enclosing the movable element; a coil, secured to the frame, for applying a driving force to the magnet portion so as to cause the movable element to undergo reciprocating vibration along the axial direction; and an elastic member for applying, to the movable element, an elastic force that repels the driving force that is applied to the magnet portion, wherein: a magnetic material portion (a magnetic material piece) that extend along the direction of vibration of the movable element is provided on an inner surface of the frame, and the yoke has a raised portion near the magnetic material portion (the magnetic material piece).

Abstract: The object of the present invention is to shorten the dimension in the axial direction to achieve compactness. The present invention has a movable element integrally provided with a magnet portion, weight portions, and shafts; a frame accommodating the movable element and enabling reciprocating motion thereof along a axial direction; a coil secured to the frame and drives the magnet portion along the axial direction; and elastic members exerting, on the movable element, elastic forces repelling the driving forces that act on the magnet portion. The shafts each extend toward a side along the axial direction. Tip ends of the shafts are configured as free ends. Bearings slidably supporting the shafts are secured to the frame. The weight portions have recessed portions that are formed along the axial direction. The shafts and the bearings are disposed in the spaces within the recessed portions.

Abstract: A vibration actuator having a plate-shaped body made from a magnetic material that has a planar supporting face; a movable element that vibrates in the axial direction along the supporting face, in direct contact, or partial contact through contacts, with a plurality of locations of the supporting face; an elastic member for elastically repelling the vibration of the movable element; and a coil, wherein a winding part is secured to the plate-shaped body, and is perpendicular, in relation to the axial direction, to a gap between the movable element and the plate-shaped body; wherein the movable element has a magnetic flux, which passes through the winding part of the coil, formed between the movable element and the plate-shaped body, and is provided with a magnet for magnetically attracting the movable element toward the supporting face side.