| 摘要 |
sportive equipment. SUBSTANCE: running track has base, driven belt, control system including power source, timers, resistors, relay, break contacts of start, exercising and finish zones, breaking and closing contacts of starter relay, paired closing contacts of brake zone, power supply relay for electric engine and excitation coils, paired closing contacts for start and exercising zones, step-up transformers, block of step-up and step-down transformers, block of resistors, rectifiers, paired series-connected break contacts for start, exercising and finish zones, paired coils for start thrusts and switch. Apparatus is adapted for runner exercising and is controlled by electric circuit activated by runner's foot. EFFECT: simplified construction, increased efficiency and enhanced reliability in operation. 1 dwg |
