| 摘要 |
PROBLEM TO BE SOLVED: To provide a lid separation type vessel materializing improvement of disassembling/assembling work efficiency and reduction of weight. SOLUTION: An oil filter 1 includes a casing 2, a set plate 3 covering a lower end of the casing 2, and a lock ring 4 fastening the set plate 3 to the casing 2 as a main structure elements. The casing 2 includes an outward flange 23 formed on an opening end side. Three sets of rotation stopping parts 25, notches 26 and energizing projection parts 27 are formed on the outward flange 23 with having different angle phases respectively at equal angle intervals. Three sets of rotation stopping parts 41, notches 42 and locking rim parts 43 are formed on an outer circumference of the set plate 3with having different angle phases respectively at equal angle intervals. Three locking lug parts 54 are formed on an outer circumference of a lock ring 4 at equal angle intervals to project inward. COPYRIGHT: (C)2007,JPO&INPIT
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