Patent ID: 6733466
Filing Date: 2004-05-11
Classification: A61H

Abstract:
A percussive massager, comprising:a housing; a motor mounted in the housing; an output shaft rotatably driven by the motor and having two axially spaced apart ends protruding therefrom; a pair of drive members attached to the output shaft ends such that an engagement surface of each drive member is not concentric with a longitudinal axis of the output shaft; a pair of connecting rods each having a first end and a second end, wherein the first ends each cooperate with the engagement surface of one of the opposed drive members such that rotation of the output shaft causes the connecting rods to reciprocate axially in an asynchronous manner; a rocker arm pivotably mounted relative to the housing and having a central pivot axis, wherein opposed ends of the rocker arm are operably connected to the second ends of the connecting rods, causing the rocker arm to be moved about the pivot axis by rotation of the motor output shaft; and a massage formation operably connected to the rocker arm and having first and second sides spaced on opposite sides of the rocker arm pivot axis, wherein the first and second sides of the massage formation are moved with the rocker arm by each of the connecting rods to provide a percussive massage effect.