| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a strainer screen which is improved in assembling properties by allowing a net-like member to be easily held on a frame in a detachable manner, and also which is improved in filtering accuracy by preventing a gap from being formed between the outer circumference of an inflow opening end of the net-like member and the inner circumference of a release port of the frame. <P>SOLUTION: The screen to be detachably installed in a flow passage of a strainer includes: the net-like member 60 including a cylinder 61 with the opening on one end side being constituted as the inflow opening 61a, and a bottom plate 62 closing the opening on the other end side of the cylinder 61; and the cylindrical frame 70 which has the release port 74a surrounding the outer circumference of the inflow opening end 61b of the net-like member 60 and holds the net-like member 60 in a detachable manner. The outside diameter Da of the inflow opening end 61b of the net-like member 60 is set to be larger than the outside diameter Ds of a general portion of the net-like member 60 so that the outer circumference of the inflow opening end 61b of the net-like member 70 is bonded or approached to the inner circumference of the release port 74a of the frame 70. <P>COPYRIGHT: (C)2013,JPO&INPIT |
