PROBLEM TO BE SOLVED: To provide a health chair capable of more improving comfortable feeling.SOLUTION: The health chair includes a seat plate 1, a middle plate 2, and a bottom plate 3 piled up down. The seat and middle plates 1 and 2 have upper support bodies 5 to the bottom surface side. The middle and bottom plates 2 and 3 have lower support bodies 6 to the top surface side opposite to the upper support bodies 5. Guide grooves 7, 7 extended in any of back and forth and right and left directions are provided on the upper and lower support bodies 5 and 6 between the seat plate 1 and the middle plate 2, and guide grooves 7, 7 extended in a direction orthogonally crossing the former guide grooves 7, 7 are provided on the upper and lower support bodies 5 and 6 between the middle plate 2 and the bottom plate 3. Spherical bodies 9 slidably lie between both guide grooves 7, 7. To the bottom surface side, the bottom plate 1 and the middle plate 2 have upper regulation members 10 in an substantially L-shape with a dangling piece 10a and a horizontal piece 10b horizontally extended from the lower part of the dangling piece 10a. To the top surface side, the middle and bottom plates 2 and 3 have lower regulation members 11 formed in an almost L-shape.COPYRIGHT: (C)2010,JPO&INPIT【課題】快適感をさらに向上することができる健康椅子を提供する。【解決手段】上下に重なる座板1と中板2と底板3とを備え、座板1と中板2は、底面側に上支持体5を有すると共に、中板2と底板3は、天面側に上支持体5と相対する位置に下支持体6を有し、座板1と中板2の間にある上支持体5と下支持体6は、前後方向又は左右方向のいずれかの方向に延びるガイド溝7,7が設けてあると共に、中板2と底板3の間にある上支持体5と下支持体6は、上記ガイド溝7,7とは直交方向に延びるガイド溝7,7が設けてあり、両ガイド溝7,7の間には球体9が介在して摺動自在であり、座板1と中板2の底面側には、垂下片10aと、その垂下片10aの下部から水平に伸びる水平片10bとから略L字型をなす上規制部材10を有しており、中板2と底板3の天面側には、略逆L字型をなす下規制部材11を有している。【選択図】図1(a)(b)(c)