PROBLEM TO BE SOLVED: To provide an air massage device in which time and effort for adjusting a mounting size of a leg covering part can be reduced.SOLUTION: An air massage device 1 includes a leg covering part 20, which is a belt wound around a lower leg, and an air bag provided to the leg covering part 20. The leg covering part 20 includes an adjusting part including a structure capable of adjusting the mounting size in a state in which it is wound around the lower leg, and a coupling/separating part 40 for coupling and separating a first part 21 including a first end part 21A which is one end part in a longitudinal direction of the leg covering part 20, and a second part 24 including a second end part 24A, which is the other end part in the longitudinal direction of the leg covering part 20. The coupling/separating part 40 is configured so as to couple and separate the first part 21 and the second part 24 while keeping a state related to the mounting size of the leg covering part 20 by the adjusting part.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2019,JPO&INPIT【課題】脚被覆部の装着サイズを調節する手間が軽減されるエアーマッサージ装置を提供する。【解決手段】エアーマッサージ装置1は、下腿に巻き付け可能な帯である脚被覆部20と、脚被覆部20に設けられたエアーバッグとを備える。脚被覆部20は、下腿に巻かれた装着状態における装着サイズを調節可能な構造を含む調節部と、脚被覆部20の長手方向の一方の端部である第1端部21Aを含む第1部分21と脚被覆部20の長手方向の他方の端部である第2端部24Aを含む第2部分24とを結合および分離する結合分離部40とを備える。結合分離部40は調節部による脚被覆部20の装着サイズに関する状態を保持したまま、第1部分21と第2部分24とを結合および分離できるように構成されている。【選択図】図1