Steerable wheel structure for the conversion of commercially available rolling shutters gates in order to overcome obstacles smaller to medium-sized

摘要

Wheel structure of which it makes it easier for small to medium to overcome obstacles, characterized in that 5 wheels (2) are arranged in a star shape around an axis which, by means of two base plates (1) on each side of the wheels are held by a respective axis, so that these wheels (2) and the complete wheel spider (1 + 2) can rotate freely.