動作時のスラックスの被服圧変化

第1報　被服圧分布の動的測定

抄録

We have developed a dynamic system which is designed to measure the clothing pressures distributed on the body. The dynamic system is to dynamically measure the clothing pressures on the body at multi-spotted sensors on a given part of the body. By using this system, we dynamically measured the distributions of the clothing pressures on the knee as well as on the hip during the period when the subject in basic slacks was performing some kinds of motions. The motions the subject was asked to repeat were: (1) bringing up and down a leg on a block, (2) stepping up and down on a block, (3) sitting on the chair and standing up, and (4) squatting and standing up.
As a result of this experiment, we obtained following findings.
(A) When the motion starts from a standing posture, the dynamic clothing pressures reach their peak before the motions finish. When the motion ends and the body comes to a still condition, the clothing pressures grow lower and indicate a constant value. But when the body starts moving again to return to the standing posture, the pressures once grow higher and go to zero value after reaching the peak.
(B) The clothing pressures varied from motion to motion. The maximum values of the clothing pressures came out in the following order: (4) squatting and standing up, (3) sitting on the chair and standing up, (2) stepping up and down a block, (1) bringing up and down a leg on a block. (1) and (2) show almost the same values. The pressures on the knee show much greater than those on the hip. This can be because these pressures depend on the degree of skin stretching motion and of its curvature.
(C) The pressures become greater when the hem of the slacks is taped around the ankle not prevent from shifting upward than in a natural condition.
(D) The pressures show different distribution patterns both on the knee and hip. As a general rule, the pressures on the inside of the upper part and the outside of the lower part of the knee show greater value than the other parts. When it comes to the hip, the lower part and the middle part of the hip indicate greater than the other parts.
(E) From all the findings listed above, it is clear that our dynamic system can serve effectively for measuring the clothing pressures in the dynamic method. Consequently, we assume that it would be helpful to apply this kind of dynamic system into the research of the clothing pressures.