PELVIS SUPPORTING DEVICE, CHAIR AND PELVIS SUPPORTING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a pelvis supporting device in which an ideal sitting position can be kept for a long time by making a pelvis stand stably.SOLUTION: A pelvis supporting device 1 is provided for supporting a pelvis of a seated person by being seated. The pelvis supporting device includes an iliac pressing supporting part 30 capable of pressing and supporting an ilium of the seated person from rear outward toward a width direction center of the seated person, a thigh holding part 20 configured so as to highly hold the pelvis side of a thigh from the knee side of the thigh of the seated person, and a sciatic expanding holding part 10 interposed between the thighs of the seated person and capable of expanding the sciatic of the seated person.SELECTED DRAWING: Figure 2