| 摘要 |
Device intended to be fixed to the base of various types of equipment, and in particular tubular metal ladders, in order to compensate for the unevenness of the ground, essentially consisting of a column 7 punched with a plurality of holes 15 and ending at its base in a block 6. This column which is introduced into the upright 5 of the ladder and slides in a stirrup 4 fixed on the upright 5 and equipped with catches 19 supported by catch holders 11 spaced apart provisionally by a lever in order to allow the block 6 to come into contact with the ground, stressed for this purpose by a spring 24 bearing on the rung 22 of the ladder. <IMAGE>
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