Mobile crane outrigger comprising a fixing device

A mobile crane supporting device comprising:

• a first support segment which can be fastened to an undercarriage of a mobile crane;
• a second support segment which is mounted such that it can be moved within and relative to the first support segment and which comprises a support foot which can be moved in the vertical direction;
• a fixing device for preventing a movement of the second support segment in the direction of movement and in any relative position between the first support segment and second support segment,
• wherein the fixing device comprises a clamping body which is held in abutment with a ramp, which is formed between the first support segment and second support segment, by a holding device and mounted relative to the first support segment and second support segment in such a way that a travelling movement of the second support segment in a direction pointing away from the support foot causes an increase in the force applied to the ramp by the clamping body and thus fixes the second support segment relative to the first support segment.