Patent ID: 8074478

Claim:
A horizontal locking case lock comprising: a coupler fastened to a shell and a lock which has a housing allowing the coupler to wedge and lock on a surface of the lock; the coupler includes a body which has at least one first wedge portion at one edge and at least one latch trough formed on one side thereof facing the coupler; the lock includes a left housing and a right housing coupled together to form the housing, the housing including a second wedge portion on the surface thereof latchable by the at least one first wedge portion for locking and a locking mechanism, a first retainer, a second retainer and a steel ball; the first retainer having at least one boss on the top thereof movable by unlocking and locking of the locking mechanism to latch a butting member located at the bottom of the second retainer, the butting member having a sloped surface and a holding trough on an upper side to receive or push the steel ball to pass through a steel ball passing hole formed in the left housing to latch or escape the at least one latch trough of the coupler thereby to actuate unlocking or locking of the coupler and the lock.