Lock mechanism and combination case

摘要

A locking technique that can lock and unlock a case by one action and in addition can hang the case at the time of, for example, display. A lock mechanism 40 for locking an upper case 20 and a lower case 30 together is mounted pivotally on the lower case 30. The lock mechanism 40 comprises: a lock portion 70 that is engaged with a lock engaging portion 24 provided in the upper case 20; and a hook portion 50 that is operated to engage and disengage the lock portion 70. The hook portion 50 is provided with lock pieces that act on lock-in pressing portions of the lock portion 70 at the time of engaging the lock portion 70. In addition, the hook portion 50 is provided with lock releasing pieces 53 for releasing engagement.