| 摘要 |
FIELD: hoisting facilities for operation at tall structures in fire fighting, people rescue work, etc. SUBSTANCE: device has additional cradle 23 capable of vertical displacement in space by means of ropes attached to it and reeving through pulleys mounted on one of section such as main section 11. Main working cradle 15 and additional one 23 are provided with coupling units for coupling and connection to each other in space at corresponding folding of intermediate sections 12, 13 and last section 14. EFFECT: improved efficiency. 7 dwg |
