| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an oil strainer having superior assemblability to prevent product failure, and capable of being miniaturized without degrading rigidity.SOLUTION: A filter 4 and an annular frame member 3 are formed into the shapes inclined to be gradually positioned above from a central part toward an outer side in a side view. A case 2 is provided with an annular projecting portion 23 opposed to the annular frame member 3 in a state of assembling the annular frame member 3, from a lower end peripheral edge to an outer side, and a projecting portion 32 kept into contact with the annular projecting portion 23 from an outer side, is integrally projected toward a case 2 side from an outer peripheral side of the annular frame member 3. A void portion 5 is formed between opposed faces of the annular projecting portion 23 and the annular frame member 3. The annular projecting portion 23 is provided with a first welding rib 23a welded to the annular frame member 3 in a state of projecting toward the void portion 5.</p> |
