VIBRATOR FOR VIBRATION GENERATOR FOR SMALL RADIO CALL DEVICE

摘要

PURPOSE:To ensure a sufficient strength against extraction and to obtain desired vibration without causing a crack or the like to a tightening section even when the vibrator is fixed to a small motor output shaft especially. CONSTITUTION:A mount hole 11 to which a drive shaft of a motor is inserted is formed to an eccentric position of the vibrator. Furthermore, a ratio H/R of a axial length of the mount hole 11 to a maximum radius R from the axial line till an outer circumference is selected to be 1.6 or over.