PROBLEM TO BE SOLVED: To provide a massage machine which makes the body of a user three-dimensionally stretch or twist by utilizing an expansion/contraction bag to be expanded and contracted by an air supply/discharge device and increases density in a body treating part to which the effect of the stretch or the twist is exerted.SOLUTION: In the massage machine 1a, the expansion/contraction bags 2a which are pressurized and expanded and contracted or pressurized and kept expanded by the supply/discharge of air by the air supply/discharge device 3a are disposed inside the appropriate part of a chair main body 10a comprising a seat part 11a and a backrest part 12a. The plurality of expansion/contraction bags 2a are arranged side by side respectively in left and right width directions in the seat part 11a and the backrest part 12a. Also, in the length direction of the chair main body 10a between the seat part 11a and the backrest part 12a, synchronous expansion/contraction bag column groups 20a for synchronously expanding and contracting the expansion/contraction bags 2a in the seat part 11a and the expansion/contraction bags 2a in the backrest part 12a adjacent to each other respectively are constituted, and the respective synchronous expansion/contraction bag column groups 20a are successively expanded and contracted in the left and right width directions when the backrest part 12a is raised.COPYRIGHT: (C)2009,JPO&INPIT【課題】空気給排装置により膨張及び収縮する膨縮袋を活用して三次元的なストレッチまたはひねりを使用者の身体に行わせて、そのストレッチまたはひねりの効果が及ぶ身体施療部位における密度を高めたマッサージ機を提供する。【解決手段】座部11aと背凭れ部12aとからなる椅子本体10a適所に空気給排装置3aにより押圧膨縮または押圧膨張保持する膨縮袋2aを内装したマッサージ機1aであって、該膨縮袋2aを座部11a及び背凭れ部12aにそれぞれ左右幅方向において複数並設すると共に、座部11aと背凭れ部12aとの間における椅子本体10aの長さ方向においてそれぞれ相隣する座部11aの膨縮袋2aと背凭れ部12aの膨縮袋2aとを同期膨縮する同期膨縮袋列群20aを構成し、背凭れ部12aの起立状態において各同期膨縮袋列群20aを左右幅方向において順次膨縮するよう構成した。【選択図】 図18
