Metallic soundproof foot for e.g. forearm crutch, has three demountable parts reassembled with help of new mounting order, and plastic collar with ends slide relative to each other to enlace upper and lower ends of large metallic tube

摘要

The foot has three demountable parts integrated with respect to each other by modifying ends of a plastic collar (6) and a plastic washer (7) of a large metallic tube (3). The parts are reassembled with the help of a new mounting order, where each part is of 53 cm. Lower and upper ends of the large metallic tube slide with respect to each other along small metallic lower and upper tubes (1, 2). The ends of the plastic collar are guided relative to each other to enlace the upper and lower ends of the large metallic tube.