| 摘要 |
FIELD: aviation. SUBSTANCE: stairway is mounted under line of floor. It consists of carriage with motion drive, ladder with bearing wheels and uprights of rails, rail control rod and bearing wheel control rod. Carriage is connected with ladder by means of rollers and profiled rails. Mounted on carriage are swivel cranks and their latches; swivel cranks are connected with rails by means of control rods. Uprights of ladder rails are spring-loaded and are connected with ladder bearing wheels by means of cranks fitted with round pins, links provided with profiled cuts and control rods. EFFECT: enhanced reliability. 2 cl, 13 dwg |
