| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a check valve which excels in discharging property, check property and space-saving property and which can easily be applied to an auger device. <P>SOLUTION: The check valve 32 has a valve portion 41 which is an elastic body and which has one surface formed with a convex face 45, keeps a cut 46, extending from the convex face to a concave face 47 which is the other side, formed on the valve portion, opens by deforming the valve portion pressure applied to the concave face such that inner faces of the cut depart from each other, and closes by the inner faces of the cut being pressed and adhered by pressure applied to the convex face. The cut passes the top portion of the convex face and there are one or a plurality of cuts. <P>COPYRIGHT: (C)2012,JPO&INPIT |
