| 摘要 |
FIELD: sports equipment. SUBSTANCE: running track has wedge-shaped belts joined into blocks by means of common surface base, endless webs and antifriction support with longitudinal slots, where block belts are accommodated. Endless webs are arranged on top surfaces of support. Upper surfaces of blocks and endless webs are positioned at one level. Belts are positioned on driving and driven members formed as pulleys, which are positioned at both sides relative to mid part of shaft axes. EFFECT: increased efficiency and reduced resistance of endless belt. 2 dwgw |
