Unlocking the door guard and locking with the pendulum action of the hanging insect repellent

"When I came back from going out, the door guard was on."

When the couple returned from shopping, they said the door guard was on.It's a rare problem for a detached house case.I don't remember the last few years.

When I opened the door with normal unlocking, there was an insect repellent hanging.

It is presumed that the door guard moved by itself due to the pendulum action with the momentum of closing the door.

No defects were found in the door guard parts, but the latch was loose, so it will probably need to be replaced.

Since it is possible with DIY, I decided to purchase it from the home center by myself.It was a rare event as a detached case.