| 摘要 |
PURPOSE:To automatically lock a door when the door is closed by a method wherein a double hole formed in a slide bar for the door moved up and down by a grip and which is composed of a large a small holes for coupling and for release is brought into contact with a large-diameter part and a small-diameter part at a lock pin and a boss installed so as to protrude on the front of an enclosure. CONSTITUTION:When a door 5 is closed, a large-diameter part 15 at a lock pin 13 is inserted into a large hole 30 in a double hole 29 for coupling, and a small-diameter shaft 37 at a positioning pin 35 comes into contact with a boss 16. Then, when the door 5 is pressed, the positioning pin 35 is retreated against a spring 38. When a large-diameter shaft 36 is separated from a large-diameter hole 33 in a double hole 32 for release, a small-diameter part 14 at the lock pin 13 is positioned in the large hole 30 in the double hole 29 for coupling, a slide bar 26 is moved downward, the small-diameter part 14 at the lock pin 35 is coupled to a small hole 31 in the double hole 29 for coupling, and the small-diameter shaft 37 at the positioning pin 35 is in coupled to a small hole 34 in the double hole 32 for release. When the door is to be opened, a grip 28 is held, the slide bar 26 is moved upward, and the door is pulled toward an operator. Thereby, when the door is closed, the door is locked automatically. |
