| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable a hermetically sealed vessel device to be surely kept in a hermetically sealed state and to get easily out of it by a method wherein a second case member is linked to a first case member in such a state that it is capable of pivoting freely, and both case members are kept in a linkage state by a locking means and made to get out of the linkage state by the locking mechanism. SOLUTION: A hermetically sealed vessel is composed of a first vessel member 21 and a second vessel member 22, wherein the second vessel member 22 is linked to the first vessel member 21 through the intermediary of a torsion bar 28 and a linking member in such a state that it is capable of pivoting freely. An arm 32 is held by a locking means 33 so as not to pivot while the second vessel member 22 is joined to the first vessel member 21. The locking member 34 is equipped with a stepped part 34a, and the stepped part 34a is engaged with an arm 32 to stop it from pivoting. A current is applied to a solenoid to make an operating shaft slide when the locking member 34 is engaged with a recess 45a, whereby the locking member 34 is slid to disengage its stepped part 34a from the arm 32.</p> |
