This invention relates to a massage device of a massage chair, the massage device being provided with a frame on which a first operation mechanism, a second operation mechanism, a third operation mechanism, and a pair of swing arm mechanisms are set, wherein the first operation mechanism at least has a motor and a first operation part connected with two deflection structures and a push rod the second operation mechanism at least has a motor and a second operation part connected with two swing structures the third operation mechanism at least has a motor and a operation movement part and the pair of swing arm mechanisms have a plurality of rollers and a connection part respectively. The two connection parts and two push rods are driven by the deflection structures. The swing arm is openly disposed thereon with a pushing part, and the swing structure is disposed thereon with a stop part. A pressure device is disposed between the pushing part and the stop part, and the pressure device is capable of transmitting the massage operation generated by the swing arm mechanism which is driven by the swing structure. Furthermore, the pressure device can increase the pressure or release the pressure so as to increase the massage pressure of the swing arm and reduce the shock.一種按摩椅之按摩裝置,該按摩裝置具有一機架,該機架上設有一第一動作機構、一第二動作機構、一第三動作機構以及一對擺臂機構,其中該第一動作機構至少具有一馬達、一第一動作部,該第一動作部連結有二個偏擺結構及一推桿,該第二動作機構至少具有一馬達、一第二動作部,該第二動作部連結有二個擺動結構,該第三動作機構至少具有一馬達、一第三動作部,該一對擺臂機構具有複數個滾輪及一連結部,該二連結部與二推桿受偏擺結構帶動,該擺臂上開設有一頂推部,並於該擺動結構上設有一檔止部,該頂推部與檔止部間設有一壓力裝置,該壓力裝置可傳達擺動結構帶動至擺臂機構產生按摩動作,且壓力裝置可增壓或洩壓藉以增加擺臂之按摩壓力及減震使用。10...機架11...背板12...側板213...推桿3...第二動作機構30...馬達302...傳動帶31...第二動作部311...受動端312...擺動結構313...擋止部314...換向齒輪組315...第二軸承4...第三動作機構40...馬達41...第三動作部412...轉動齒輪413...換向齒輪組415...第三軸承50...擺臂機構51...滾輪52...擺臂53...壓力裝置
