MASSAGE UNIT FOR A BACKREST, INCLUDING A BACKREST OF A CHAIR AND A PORTABLE BACKREST

摘要

A massage unit wherein at least some of the massage heads move in an alternating direction so as to define alternating cooperating pairs of massage heads is provided. In another embodiment, a massage unit wherein at least some of the massage heads are pivotally moveable in an arc about an axis in a plane generally parallel to the front face of the massage unit and the massage heads are independently moveable in a direction generally perpendicular to the front face.