VIBRATING BODY DRIVEN IN AXIAL DIRECTION

摘要

PROBLEM TO BE SOLVED: To provide a small and high-performance portable vibrating body. SOLUTION: A cylindrical drive coil 12 is fixed to one side edge of the cylindrical frame 11 of the vibrating body 10 driven in an axial direction. The vibrating body 10 is formed by a cup-shaped yoke 21 consisting of a magnetic material magnetically engaged with the drive coil 12 through a space and a columnar permanent magnet 22. A pair of coiled springs 24 and 25 provided at both side ends of the frame 11 vibrate a driver 20 having a weight 23 thereon in the axial direction at 100 to 160 Hz.