姿勢が着衣熱抵抗値に及ぼす影響に関する研究  [in Japanese] THE INFLUENCE OF POSTURES ON THERMAL INSULATION OF CLOTHING  [in Japanese]

The purpose of this paper is to clarify the influence of postures on the thermal insulation of clothing and the clothing area factor. Clothing area factors were measured by using the photographic method. Experiments were carried out to evaluate the effects of posture and operative temperature on the thermal insulation of clothing. Thermal insulations of clothing were measured by using a thermal manikin varying postures. Five common body postures were used for these measurements: standing, chair sitting, cross-legged sitting, leg-out sitting and supine positions. It was clarified that measurements from all azimuth angle directions of the human body and different altitude angle directions were indispensable to determine the clothing area factor by using photographic method. It acquired that the posture affects the clothing area factor. The thermal insulation of clothing increased significantly with operative temperature. It acquired that the environmental temperature affects the thermal insulation of clothing. It was clarified that it was absolutely indispensable for evaluating the thermal environment to use the thermal insulations of clothing in postures.