Patent ID: 8087274

Claim:
A lock structure, comprising: an activation device, operably provided; a combination lock, selectively being in an unlocked configuration and a locked configuration, having a plurality of dials, a shaft passing through the dials, and a plurality of first gears each disposed on one side of one of the plurality of dials, wherein each first gear includes a missing tooth, one end of the shaft is connected to the activation device; a setting device having a plurality of second gears corresponding to the first gears and a setting shaft, wherein one end of the setting shaft passes through the second gears and the other end is connected to the activation device; wherein the combination lock in the unlocked configuration allows the activation device to be operated to drive the second gears to rotate the first gears, and each second gear further runs free with the missing tooth of each first gear so that the dials are in a predetermined position; the activation device is further allowed to be operated to bring the combination lock to the locked configuration and drives the second gears to rotate the first gears, and each second gear further runs free with the missing tooth of each first gear, the dials are in a predetermined setting position.