| 摘要 |
PROBLEM TO BE SOLVED: To provide a shovel cover having an integrally formed rib of high reinforcement strength.SOLUTION: A shovel cover for covering a part of a revolving super structure has a cover body 210, and a rib 250 that is formed on the back side of the cover body and reinforces the cover body. A ratio (t:tr) between a thickness t of the cover body and a thickness tr of the rib is 1:1-1:3.SELECTED DRAWING: Figure 5 |
