< Topic >As pain of numbness and the joint of the foot when sitting straight is eased, carrying being possible, at the same time, installation being possible simply, furthermore the portable auxiliary tool for sitting straight where installation is not understood with appearance is offered.SolutionsWhen sitting straight the part and the tarsal back of the tarsal anterior shell which receives the pressure with weight you wipe, and others from the joint applying on the heel, allotting the tarsal bolster which installs the buffer agent which has springiness to the dent section, it eases pressure. This tarsal bolster, uses the cloth which has elasticity with thin it is easy to install simply installs the buffer agent which has springiness in the part of the tarsal anterior shell and the dent section the back, both edge strips does not administer leaves as cloth at all.< Choice figure >Drawing 1【課題】正座時の足の痺れや関節の痛みを緩和するとともに、携帯が可能で、かつ、簡単に装着ができて、しかも装着が外観でわからない正座用携帯補助具を提供する。【解決手段】正座時に体重による圧迫を受ける足首前側の甲の部分及び足首後側のふくらはぎから踵の上にかけての凹み部に、弾力性のある緩衝材を取り付ける足首枕を配して、圧迫を緩和する。この足首枕は、簡単に装着し易い薄手で伸縮性のある生地を使い、足首前側の甲の部分と後側の凹み部に弾力性のある緩衝材を取り付け、両側面は何も施さず生地のままとする。【選択図】図1
