| 摘要 |
A vibratory generating mechanism has a movable eccentric weight (4) rotatable around a pivoting shaft (3), a sliding member (11) capable of linearly moving on the axial line of the vibration generating shaft along a guide member (6) at one end of the vibration generating shaft, a connecting rod (12) one end of which is connected to the sliding member and other end of which is connected to the movable eccentric weight for transforming a displacement of a linear movement of the sliding member into a displacement of a rotational movement around a pivoting shaft of the vibration generating shaft, a stopper (14) for restricting a range of pivoting the movable eccentric weight to an angle nullifying an amount of eccentricity of the vibration generating shaft only from one side, and a pressing member (13) such that the amount of eccentricity of the vibration generating shaft is nullified. Such a mechanism starts and stops vibration without resonating the vibratory body. <IMAGE> |
