| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pin joint device capable of obtaining proper pull-out force with a simple structure, and a gas cutoff valve using the same. <P>SOLUTION: The pin joint device includes a first shaft (11), which has a groove (11b) formed in the vicinity of the chip over the whole periphery and mounted with an O-ring (14) and a first pin insertion hole (11a) formed in a direction orthogonal to the axial direction and formed with a part of the O-ring (14) at a position where the part is exposed in its inside, a second shaft (12), which has a shaft hole (12a) axially formed at the chip and inserted with the first shaft (11) and a second pin insertion hole (12b) formed in a direction orthogonal to the shaft hole (12a), and a pin (13) being a pin (13) inserted into the first/second pin insertion holes (11a, 12b) so as to connect the first/second shafts (11, 12) to each other and having a groove (13b) formed over the whole periphery so as to be partially fitted with the O-ring (14) when connecting the first/second shafts to each other. <P>COPYRIGHT: (C)2010,JPO&INPIT |
