Base plane e.g. ground, unevenness compensating device for e.g. ladder, has rigid tube projecting outside arched tube, right sliding leg placed in retracted position in arched tube, and left sliding leg maintained in release position

摘要

The device has a flexible coupling unit housed in sliding manner inside an arched tube (6) fixed to or made a part of a structure of a support. A rigid elongated and reinforced tube (11) projects outside the arched tube in a lower part of the support in order to be supported on an uneven ground (3) or an elevation (7) in the ground. A right sliding leg (4) is placed in retracted position in the arched tube, and a left sliding leg (5) is maintained in release position until contacting with a base level of the ground.