| 摘要 |
<p>PROBLEM TO BE SOLVED: To make it possible to selectively open a door on the left or right side with a simple structure by providing a latch member for holding one of pin grippers at the release position and the other at the holding position, and an operation knob for externally operating the member. SOLUTION: A slender bar-like latch member 30 is installed slidably along the lengthwise direction between right and left pin slots 13 and 13b. The member 30 is coupled to an operation knob 9 exposed with the exterior via a knob slot 15, and slit by the operation. When the member 30 is moved to the right or left side in the state that the door is closed, its holding protrusion 31 is held at the right or left side holding grooves 17a, 17b of the member 16, and both ends of the member 30 are brought into contact with the locking surfaces of right or left side pin grippers 20a, 20b. Accordingly, desired switching direction can be selected.</p> |
