A kind of displacement mechanism of leg massager,It is include the first frame body,Second frame body and displacement drive group； One of what first frame body side sets the second frame body with Sliding Structures cunning,And the massage mechanism for massaging leg is installed on what second frame body,Another displacement drive system first frame body of what is equipped with the screw rod of power source drive rotation,And the second frame body of what is installed with the swivel nut screwed togather on the screw rod,And when the rotation of what power source drive screw rod,One of the second frame body and the first frame body of massage mechanism what side shift reciprocately are driven with swivel nut,And the massaging actions such as pressing kneading are carried out with massage mechanism what leg； Thereby,The second frame body and massage mechanism is driven to make shift reciprocately using displacement drive group,It not only can integrally make adequately to massage with massage mechanism what leg,And the second frame body and massage mechanism displacement location what appropriate position can be driven,Make the massaging action of fixed-point type with what leg,And reach the Practical Benefit of great Fu propose Noboru massage effect and ease of use.一種腿部按摩裝置之位移機構，其係包含有第一架體、第二架體及位移驅動組；於該第一架體之一側以一滑移結構滑設第二架體，且於該第二架體上裝設有供按摩腿部之按摩機構，另該位移驅動組係於第一架體設有以動力源驅動旋轉之螺桿，且於第二架體固設有螺合該螺桿上之螺套，而於動力源驅動螺桿旋轉時，即以螺套帶動第二架體及按摩機構於第一架體之一側往復位移，並以按摩機構於腿部進行按壓揉捏等按摩動作；藉此，利用位移驅動組帶動第二架體及按摩機構作往復位移，其不僅可以按摩機構於腿部整體作充分的按摩，並可帶動第二架體及按摩機構位移定位於適當位置處，以於腿部作定點式之按摩動作，而達到大幅提昇按摩效果及使用便利性之實用效益。
