| 摘要 |
PROBLEM TO BE SOLVED: To scoop ash only by using the surface tension of ash, and also enable a continuous scooping. SOLUTION: A flat section is provided at the tip end section of a scoop. Then, the central section of the flat section is slightly bent downward to form a section folded down into a valley shape. In the section folded down into a valley shape, a channel having a V-shape cross section is provided from a place several millimeters away from the tip edge of the scoop, and the channel is formed into a tapered out shape to the bottom section of the scoop. Then, in the vicinity of the bottom section of the scoop, the channel is formed in a manner to go along the shape of the bottom section of the scoop.
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