| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an auxiliary running implement for the senior generation to walk more comfortably and safely. <P>SOLUTION: A tension coil spring is used to realize flexible movement along the motion of feet, to easily stop by maintaining the feet close to the ground surface, to have a stable feeling with little danger and to be lightweight, practical and low in cost, thus solving everything required for the running implement. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
