PROBLEM TO BE SOLVED: To provide a method of evaluating easiness of wearing an underpants type disposable diaper which is much closer to the reality compared to a conventional evaluating method.SOLUTION: A centroid oscillation of a wearer 1 in conducting an activity of making legs pass through leg opening parts of an underpants type disposable diaper 2 while the wearer 1 takes a sitting posture and is kept seated is measured by a sensor of a stabilometer, and easiness of wearing the underpants type disposable diaper 2 is evaluated based on a degree of the measured centroid oscillation. The sensor is divided into a first sensor 21 and a second sensor 22. The first sensor 21 is set under a hip part of the wearer 1 in the seated posture, and the second sensor 22 is set under a sole. The continuous centroid oscillation during the activity is obtained from a measurement result acquired by the respective sensors, and the easiness of wearing the diaper 2 is evaluated based on the degree of the continuous centroid oscillation.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】従来の評価方法よりも一層実態に即したパンツ型使い捨ておむつのはき易さの難易の評価方法を提供すること。【解決手段】着用者1を座った姿勢にさせ、その姿勢から座ったままの状態でパンツ型使い捨ておむつ2のレッグ開口部に脚を通す動作を行うときの該着用者1の重心動揺を、重心動揺計のセンサを用いて測定し、測定された重心動揺の程度に基づき、パンツ型使い捨ておむつ2のはき易さの難易を評価する。センサを第1センサ21及び第2センサ21に分割し、座った姿勢における着用者2の臀部下に第1センサ21を設置し、足底下に第2センサ21を設置し、各センサによって得られる測定結果から、前記動作を行っている間の連続した重心動揺を求め、該連続した重心動揺の程度に基づきおむつ2のはき易さの難易を評価する。【選択図】図2
