| 摘要 |
Disclosed is a locking device of a door which can stably maintain a locking state of the door. The locking device of a door for opening and closing a storage space of an object includes: a locking means provided on an inner surface of the door to selectively constrain the door to the object; a safety plate formed with a biding portion and provided on the inner surface of the door so as to be broken when a forced shock is applied from outside; an auxiliary locking part for constraining the door to the object when the safety plate is broken by the forced shock; and a reinforcing cover member formed with a binding projection bound to the binding portion, being fixed to the inner surface of the door so as to cover the locking means, in which when the forced shock is applied to the reinforcing cover member, the safety plate is broken, and the door is constrained to the object by the auxiliary locking part.
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