Box lock that is releasable from inside and outside of box

摘要

A lock for a lid that opens and closes a box. The lock includes a latch. The latch engages a catch to prevent the lid from opening when the lid is closed. A crank moves between a locking position and an unlocking position. The crank engages the latch at the locking position and is disengaged from the latch at the unlocking position. A handle is used to open the lid from an outer side of the box. The handle moves the crank from the locking position to the unlocking position. A lever is used to open the lid from an inner side the box. The lever moves the holding member from the locking position to the unlocking position. A key-operated mechanism shifts the crank between an operational position, at which the handle works, and a non-operational position, at which the handle cannot work.