| 摘要 |
A portable ladder especially suited for slopes and uneven ground, comprising a plurality of parallel rungs (2) attached to two side stanchions (3). The ladder is pivotally connected to a supporting base (4) about an axis that is orthogonal (5) to the plane in which the ladder lies and that meets the longitudinal symmetry axis of the ladder, such that the ladder can be inclined in said plane in order to maintain its symmetry axis vertical regardless of the angle of inclination of the plane in which the supporting base lies. In particular, the parallel rungs (2) are further attached to a central stanchion (1) that is hinged to the supporting base (4), the free end of the central stanchion ending with a support tip suited to fix against some structure located at a given height above the ground. |
