SKIP UNLOADING DEVICE Russian patent published in 2003 - IPC

FIELD: mining industry. SUBSTANCE: invention relates to hoisting installation with skip-type lifting vehicles. Proposed device contains gate, being wall of skip and made up of three parts moving one after the other, and guides for front wall parts located on side walls. Each part of front wall carries grips for movement along guides found on side walls of skip. On middle and lower parts of front walls guides for upper and middles parts of said wall are arranged to butt-joining with corresponding guides on side walls. Device is furnished with locking mechanism including ball locks placed in holes of corresponding parts of wall and in holes of corresponding guides. Stop is provided in lower part of guide for lower part of wall, and stops are installed on skip body for engagement with parts of front wall in raised-up position. EFFECT: increased dumping capacity of skip. 3 dwg