PROBLEM TO BE SOLVED: To provide an aid for leg motion, assisting healthy persons legs in emergency evacuation.SOLUTION: An aid for leg motion includes: an oscillation rod 2 assisting the femoral region a support rod 4 connected to the lower portion of the oscillation rod 2 and assisting the cruris connection means 3 provided above the support rod 4, and swingably connecting the support rod 4 to the oscillation rod 2 only in a front/back direction and tabular return spring means 6 provided outside the connection means 3 and giving a restoring force to the support rod 4 bent to the oscillation rod 2. The return spring means 6 is provided with a first notch 6a whose at least inner peripheral surface has a circular arc shape, and which is connected to the support rod 4 between itself and the outer peripheral surface and is nearly parallel to the long axis direction of the support rod 4, and a second notch 6b which is connected to the connection means 3, and formed in an area with almost 180° to almost 270° to the first notch 6a, and a return force occurring in the second notch 6b adjacent to the first notch 6a becomes a restoring force.COPYRIGHT: (C)2015,JPO&INPIT【課題】緊急避難時に、健常者の脚に力添えしてくれる脚の動作補助具を提供する。【解決手段】大腿部を介添えする揺動ロッド2と、揺動ロッド2の下方に連結されて下腿部を介添えする支持ロッド4と、支持ロッド4の上部に設けられて揺動ロッド2に対し、支持ロッド4を前後方向にのみ揺動自在に接続する接続手段3と、接続手段3の外側に設けられて揺動ロッド2に対し、曲げられた支持ロッド4に復元力を付与する板状の復帰バネ手段6とを備え、復帰バネ手段6は、少なくとも内周面が円弧形で外周面との間に支持ロッド4と連結し且つ支持ロッド4の長軸方向に対し略平行となる第一の切り込み部6aと、接続手段3と連結し且つ第一の切り込み部6aに対し略180°~略270°の領域内に形成される第二の切り込み部6bとを設け、第一の切り込み部6aに対し、近接させた第二の切り込み部6bに生じる復帰力を揺動ロッド2の復元力としたものである。【選択図】図1
