Mechanical Drive for small Wheels in a Sole of a Shoe

Developing a small mechanical drive which fits into a sole of a shoe: -> when putting the foot onto the ground, the mechanical devices "loads energy" -> when lifting the foot up, the "loaded energy" turns small wheels on the sole of a shoe what leads to a forwards glide for the lifted shoe -> small wheels hide in the sole when foot is completely on the ground (safe stand for the person) and come out when lifting the foot up -> without electronic support, just mechanical solution