| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a simple-structured and lightweight valve for a granular material capable of preventing deterioration of durability thereof due to adhesion and accumulation of the granular material and easy to confirm a state of the inside thereof from outside. <P>SOLUTION: This valve 2 for granular material includes: a cylinder body 4 formed from a transparent or translucent material having folding resistance and including a cylindrical part 6 formed with a cylinder hole 6a; and cylinder hole opening/closing members 10, 12, 14 and 16 for closing the cylinder hole 6a by folding the cylindrical part 6 along the folding line parts N, P, Q and R and for opening the cylinder hole 6a by folding back the folded folding line parts N, P, Q and R. <P>COPYRIGHT: (C)2012,JPO&INPIT |
