| 摘要 |
<p>PURPOSE:To widely scrape bulk material deposited on a bottom face by freely movably fitting an auxiliary scraper to the tip part of a rotating scraper. CONSTITUTION:A squeezable slanted part 1a is formed to the lower part of a casing 1 and four pieces of scrapers 4 with a rotary driving shaft 3 as a center are fitted to a bottom face 2. The tip parts 4a of the scrapers 4 are bent and formed slightly inclined in the moving direction and one end part of two pieces of connecting rods 5, 5 is freely rotatably joined thereto. Auxiliary scrapers 6 are formed into a chevron shape and the outer end parts are guided along a guide rail 8 via rollers 7 in accordance with the rotation and driving of the scrapers 4. Bulk material deposited over a wide range can be removed by scraping bulk material deposited in a crescent-like part 2b of the bottom face 2 up to a circular part 2a.</p> |
