| 摘要 |
FIELD: river and sea ports, erection sites, warehouses; materials handling facilities. SUBSTANCE: slewing platform with hinge-mounted boom mechanism is installed on support. Boom mechanism is made in form of balanced articulated multiple-link mechanism coupled with power member. Boom mechanism is made for self-folding into travelling position with reduction of its dimensions to minimum. EFFECT: enlarged operating capabilities. 2 dwg |
