| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a simply structured door switchgear having excellent operability, preventing operation of a door around a hinge. <P>SOLUTION: A hinge mechanism includes a hinge base member 2, a movable hinge member 3 provided between the hinge base member 2 and a door 1, a first hinge pin 4 attached to the movable hinge member 3 at a side of the hinge base member, and a second hinge pin 5 attached to the movable hinge member 3 at a side of the door 1. The door 1 and the movable hinge member 3 rotate together with respect to the first hinge pin 4 as a supporting point in a range from a closing position of the door 1 to a rotation intermediate position. The movable hinge member 3 is prevented from rotating in the range from the rotation intermediate position to a rotation completion position. The movable hinge member 3 is locked to the door 1 when the door 1 is only rotating with respect to the second hinge pin 5 as the supporting point to be brought into the closing position. <P>COPYRIGHT: (C)2012,JPO&INPIT |
