MECHANIZED SUPPORT FOR LEAVING UNDERGROUND WORKINGS Russian patent published in 1997 - IPC

FIELD: mining industry. SUBSTANCE: mechanized support has separate sections interconnected to each other by moving hydraulic cylinder. Each section is made up of base, cover with pivotally connected cantilever, hydraulic posts mounted on base, protective side guarding, which is pivotally fastened over length of outer side of cover for possible lifting. Cantilever part has recess for upper beam of removable framed support and lip which is adjacent to cantilever part. Length of lip is not larger than framed support mounting pitch. In support section located at side of worked-out pillar, its cantilever part is pivotally connected with cover with possibility for lowering. Cantilever parts of support sections are brought aside from axis of underground working with creation of clearance between their adjacent sides for orientation in it of reinforcing support post. EFFECT: high efficiency. 4 dwg