Working platform

摘要

Two mutually opposite legs (16) of a rectangular frame are lengthened via the two other legs. Fastened in the resulting corner regions are retaining means (18) in which there is displaceably mounted in each case one movable clamping jaw (28) for fixedly clamping a tube (32). In order to adjust the clamping jaw (28), use is made of a screw spindle (34) which drives a front, coaxial pin (44) of the clamping jaw into the material of the tube (32). The tube (32) is thus fixed in a positively and frictionally locking manner. <IMAGE>