LINEAR VIBRATION MOTOR

PROBLEM TO BE SOLVED: To make it possible that a movable element of a thinned linear vibration motor smoothly vibrates along a guide shaft.SOLUTION: A linear vibration motor 1 includes: a movable element 2 equipped with a magnetic pole part 10 and a weight part 20; a coil 3 which gives a driving force along a uniaxial direction to the magnetic pole part 10; a frame body 4 equipped with a magnetic pole frame part 30 for holding the coil 3; an elastic member 5 which is located in the frame body 4 and gives an elastic force repellent to the driving force to a movable element 2; and a guide shaft 6 which guides vibration of the movable element 2 along an uniaxial direction in the frame body 4. The movable element 2 has a flat shape such that a width orthogonal to the uniaxial direction is larger than a thickness orthogonal to the uniaxial direction. A part of magnetic pole frame part 30, to which a width direction end part of the magnetic pole part 10 closes by rotation of the movable element 2 around the guide shaft 6, is provided with an adsorption suppression part 50 which suppresses adsorption of the magnetic pole part 10.SELECTED DRAWING: Figure 1 【課題】薄型化されたリニア振動モータの可動子がガイドシャフトに沿って円滑に振動できるようにする。【解決手段】リニア振動モータ１は、磁極部１０と錘部２０を備える可動子２と、磁極部１０に対して一軸方向に沿った駆動力を付与するコイル３と、コイル３を保持する磁極枠部３０を備える枠体４と、枠体４内に配置されて駆動力に反発する弾性力を可動子２に付与する弾性部材５と、枠体４内で一軸方向に沿った可動子２の振動をガイドするガイドシャフト６とを備え、可動子２は、一軸方向に直交する幅が一軸方向に直交する厚さより大きい偏平形状を有し、ガイドシャフト６回りの可動子２の回転で磁極部１０における幅方向の端部が近接する磁極枠部３０の一部に、磁極部１０の吸着を抑止する吸着抑止部５０を設けた。【選択図】図１