DEVICE FOR STEP MOVEMENT Russian patent published in 1994 - IPC

FIELD: medicine, sport. SUBSTANCE: levers 1, 2, 10, and 11 are connected with each other so, that in working position they form an articulted parallelogram. Articulated joint 5 of levers 1 and 2 are provided with arresting mechanisms, each of them including a segment with inclined teeth, a pawl engageable with these teeth, and a device to control the pawl. Support members 12 are secured on levers 11 and consist at least of two parts connected in lateral direction by means of piano hinges. EFFECT: improved reliability. 3 cl, 6 dwg