| 摘要 |
PROBLEM TO BE SOLVED: To eliminate the need for operations such as the scraping-off of deposits and cleaning by making it hard for treated materials such as earth and sand to be deposited at and adhere to corner parts of a skeleton bucket at which its bottom-plate part and its side-plate parts are in contact with each other. SOLUTION: The skeleton bucket 2 includes both of the bottom-plate part 6 formed in a U-shaped cross-sectional shape and having a cutting edge 4 at one side of the U-shape in its bending direction and a pair of the side-plate parts 8 and 8 joined to both sides of the bottom-plate part 6 in the width direction intersecting with the bending direction at right angles. The bottom-plate part 6 and the side-plate parts 8 each have a plurality of grids TM and SM. COPYRIGHT: (C)2011,JPO&INPIT
|
