Abstract: A scaffold has several spaced apart systems of construction frames present on top of each other, as well as handrail frames that extend between the construction frames. The construction frames have three posts connected together by crossbars, in which the front post is shorter than the other two. The handrail frames are attached to these short posts. Each handrail frame is built up of two post sections with a handrail and a side plank between them. The post sections form half of a lengthwise divided post. The post sections of two adjacent handrail frames thus form one whole post, which can be inserted into the short post of a construction frame. As the post sections are part of the handrail frames, the handrail frames can be easily attached to the short posts already present at the front of the construction frames.

Abstract: A scaffold has several spaced apart systems of construction frames present on top of each other, as well as handrail frames that extend between the construction frames. The construction frames have three posts connected together by crossbars, in which the front post is shorter than the other two. The handrail frames are attached to these short posts. Each handrail frame is built up of two post sections with a handrail and a side plank between them. The post sections form half of a lengthwise divided post. The post sections of two adjacent handrail frames thus form one whole post, which can be inserted into the short post of a construction frame. As the post sections are part of the handrail frames, the handrail frames can be easily attached to the short posts already present at the front of the construction frames.

Abstract: A bridge module has a floor and two upright side sections, which are hinged to lengthwise edges of the floor. Each hinge is formed by two extrusion pieces that can be pushed into each other, and is made so that the side sections can only be folded towards the floor in a direction towards each other. Each side section is made of one extrusion piece, in which a section of the extrusion piece forms a section of the hinges. The edges of the floor are formed by girders, between which there is a plastic plate. The girders are each formed of one extrusion piece, which forms the other section of the hinges.