Patent ID: 8105253
Filing Date: 2012-01-31
Classification: A61H

Abstract:
1. A kneading massage device comprising: a driving unit for supplying power source including first and second output shafts for outputting dynamics; a differential unit including a differential set and a differential stem, and on one end of said differential set being formed an opening for inserting said first output shaft therein, and on one side of said differential set being arranged a recess in communication with said opening, said differential stem being located in said recess and in connection with said first output shaft and keeping a predetermined distance away from a sidewall of said recess; a first kneading set coupled to said differential stem so as to be actuated by said differential stem; a second kneading set coupled to said second output shaft so as to be actuated by said second output shaft; wherein said differential unit further includes a protective assembly having a holding seat which has an axial bore arranged in axial direction thereof so as to be fitted to said first output shaft of said driving unit and having a housing member, and said holding seat is securely coupled with said first output shaft by using two bolt members so as to rotate with said first output shaft, and then said housing member is fitted onto said holding seat and includes a through aperture formed in axial direction thereof so as to fit said first output shaft therein.