The utility model relates to a back cushion automatic swing structure of an inverted centrifugal rotary machine.The utility model comprises an inverted centrifugal swing machine, a frame body and a bed plate.The bed board is provided with a centrifugal rotating device.A swing back pad and an inverted lifting device；The centrifugal rotating device and the inverted lifting device are connected with a control unit.The centrifugal rotating device drives the human body to produce eccentric state rotation.The swing back cushion provides the support for human body.The inverted lifting device provides the bed plate to generate rotation.Handstand effect；It is characterized in that the swing back pad comprises: a track,The track is provided with a back plate which can slide on the track.The lower part of the back plate is provided with an automatic swinging device.Accordingly,The swing back pad is driven by the centrifugal rotating device.Produce a reciprocating horizontal swing,Protect the back.And strengthen the shaking effect.一種倒立離心搖轉機之背墊自動搖擺結構，包含有一倒立離心搖轉機包含有一架體以及一床板，該床板上設有一離心旋轉裝置、一搖擺背墊以及一倒立升降裝置，該離心旋轉裝置以及該倒立升降裝置與一控制單元連接，該離心旋轉裝置帶動人體產生偏心狀態旋轉，該搖擺背墊提供人體承靠，該倒立升降裝置提供該床板產生旋轉、倒立效果；其特徵在於：該搖擺背墊包含有：一軌道，該軌道上安裝一可在軌道上滑動的背板，該背板的下方具有一自動搖擺裝置，據此，該搖擺背墊隨著該離心旋轉裝置帶動下，產生往復的水平搖擺，保護人體背部，並加強搖動效果。
