GOAL V18.TXK-TM Security thumbturn unlock

"Unlocking the entrance door by non-carrying a key"

Judging from the handle shape, it looks like a GOAL cylinder set. If it is a TX type, it is usually judged to be a standard thumbturn.

It's an apartment property 8 years old, but I wasn't conscious of security thumbturn at all.

I tried normal thumbturn unlocking and it worked without any problems. Check cylinder set.

The main set is TXK type, but the thumbturn is TM type. The TM type thumbturn is equipped with an eccentric mechanism, and normally requires special work.

However, this time it was unlocked normally. Considering it, it seems that one of the reasons was the positional relationship with the door scope and the fact that the eccentric mechanism was not functioning sufficiently. In other words, due to the positional relationship with the door scope, the force vector was horizontal.