| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibration magnitude change-over mechanism for a massager capable of selecting a variety of vibrations by instantaneously changing over an eccentric quantity of a weight attached to a rotary shaft of a motor. SOLUTION: The vibration magnitude change-over mechanism for the massager is formed by a rotating weight 7 pressed into the rotary shaft 2 of the motor freely changing a rotating speed, a movable weight 5 freely moving along a connecting shaft 8 protrudedly provided in a radial direction from the rotating weight 7, and a coil spring 6 fixed in one end side to a fixed weight 9 provided in a tip of the connecting shaft 8 and abutting and positioning another end side on the movable weight 5. By a balance between centrifugal force of the movable weight 5 and energizing force applied from the coil spring against the centrifugal force, a position of the movable weight 5, that is to say, the eccentric quantity of a weight part 4 is automatically changed in response to the rotating speed, and magnitude of the vibration is instantaneously changed. COPYRIGHT: (C)2004,JPO
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