PROBLEM TO BE SOLVED: To improve the usability of a human body supporting device by freely forming ventilation grooves and to improve the cleanability of a surface skin in which the ventilation grooves are formed, in the human body supporting device in which the ventilation grooves are formed on the surface skin of the support member to support a human body.SOLUTION: The aerator 20 of a chair 1 as the human body supporting device includes a ventilation groove forming mechanism 30 to form a plurality of ventilation grooves 21 through which air passes between the human body and the surface skin 10 in the surface skin 10 to be in contact with the human body on a backrest 4. The ventilation groove forming mechanism 30 includes: an air bag member 31 which is provided on the inner face 10i side of the surface skin 10 of the backrest 4 and which has a plurality of air bags 33 in which the ventilation grooves 21 are formed on the surface skin 10 and an operation mechanism 40 to operate the air bag member 31. The operation mechanism 40 changes the air bag member 31 into: a groove forming shape to form the ventilation grooves 21 in the surface skin 10 and a groove eliminating shape to almost eliminate the ventilation grooves 21 from the surface skin 10.COPYRIGHT: (C)2012,JPO&INPIT【課題】人体を支持する支持部材の表皮に通気溝が形成される人体支持具において、該通気溝を形成自在とすることによる人体支持具の使い勝手の向上、および、通気溝が形成される表皮の清掃性の向上を図る。【解決手段】人体支持具としての椅子1の通気装置20は、バックレスト4において人体が接触する表皮10に、人体と表皮10との間で空気が流通する複数の通気溝21を形成する通気溝形成機構30を備える。通気溝形成機構30は、バックレスト4の表皮10の内面10i側に設けられると共に表皮10に通気溝21を形成する複数の空気袋33を有する空気袋部材31と、空気袋部材31を作動させる作動機構40とを備える。作動機構40は、空気袋部材31を、表皮10に通気溝21を形成する溝形成形態と、表皮10から通気溝21をほぼ消失させる溝消失形態とに変更する。【選択図】図2
