PROBLEM TO BE SOLVED: To provide a cushion in which the height dimension and shape of respective air cells can be easily changed according to a support object.SOLUTION: While a flexible opening edge part 12 at the lower end of each air cell 10 is freely detachably attached to the attaching hole 21 of a base member 20, when air pressure inside each air cell 10 becomes high, the outer peripheral surface of the opening edge part 12 is pressed to the inner peripheral surface of the attaching hole 21, and air does not leak from between the outer peripheral surface of the opening edge part 12 and the inner peripheral surface of the attaching hole 21. Also, since the outer peripheral surface of the opening edge part 12 is locked to the inner peripheral surface of the attaching hole 21 from the lower part, the air cell 10 is not easily detached from the attaching hole 21. That is, since there is no need to separately use an attaching member for attaching the opening edge part 12 to the attaching hole 21, each air cell 10 is easily attached and detached.COPYRIGHT: (C)2008,JPO&INPIT【課題】支持対象物に応じて各エアーセルの高さ寸法や形状を容易に変更することのできるクッションを提供する。【解決手段】各エアーセル１０の下端の可撓性の開口縁部１２がベース部材２０の取付穴２１に着脱自在に取付けられているが、各エアーセル１０内の空気圧が高くなると、開口縁部１２の外周面が取付穴２１の内周面に押付けられ、開口縁部１２の外周面と取付穴２１の内周面との間から空気漏れが生じない。また、開口縁部１２の外周面が取付穴２１の内周面に下方から係止しているので、エアーセル１０が取付穴２１から容易に外れることがない。即ち、開口縁部１２を取付穴２１に取付けるための取付部材を別途用いる必要がないので、各エアーセル１０の着脱を容易に行うことができる。【選択図】図２
