Adjustable crampon with rigid frame - has two parts joined by sliding rails with depending points converging towards back

摘要

The crampon is adjustable in length and has a rigid flat frame with lateral feet (42-47) to hold the boot. The front and lateral points (57,58,48-51,60-64) are fixed under the frame. The lateral points are placed along two rectilinear lines converging towards the back of the crampon and following the sides of the boot. The frame has back (41) and front sections (40) joined by two parallel rails (54,55) on the front part, on which two parallel rails (65,66), joined to the back part, slide. They are held together by screws through holes (56) in these.