A combination lock structure for simple password retrieval is provided. An inner sleeve is formed with a V-shaped groove. A clamping plate is provided with a V-shaped angle corresponding to the V-shaped groove. A hasp plate is provided with a hasp. A cylindrical flange of the inner sleeve is formed with a hasp groove for engagement of the hasp. A lower end of the hasp plate is provided with a convex point. A lock cylinder is formed with a protrusion corresponding to the convex point. When the lock cylinder is turned to an unlocked position, the protrusion urges the convex point to move upward and the hasp is moved upward so that the hasp is pressed against the cylindrical flange. When the hasp is engaged in the hasp groove, the V-shaped angle is engaged in the V-shaped groove.

A lock including a housing and an opening for receiving a locking bolt moveable between a locked position and an unlocked position is provided. The lock also includes a rotary actuator having a rotary output of a predetermined amount and responsive to entry of an electronic combination input by a user; a cam wheel operably coupled to the housing and responsive to a manual combination input of the user, the cam wheel including a cam way; a bolt release lever moveably coupled to the housing and including a nose portion engageable with the cam way and a locking bar; and an armature post responsive to both the rotary and manual inputs, the armature post moveable between a blocking position for blocking the locking bolt in the locked position and an unblocking position for allowing the locking bolt to move into the unlocked position.

A lock including a housing and an opening for receiving a locking bolt moveable between a locked position and an unlocked position is provided. The lock also includes a rotary actuator having a rotary output of a predetermined amount and responsive to entry of an electronic combination input by a user; a cam wheel operably coupled to the housing and responsive to a manual combination input of the user, the cam wheel including a cam way; a bolt release lever moveably coupled to the housing and including a nose portion engageable with the cam way and a locking bar; and an armature post responsive to both the rotary and manual inputs, the armature post moveable between a blocking position for blocking the locking bolt in the locked position and an unblocking position for allowing the locking bolt to move into the unlocked position.

The knob lock of the present invention includes a knob, a first driving unit disposed on the knob, a driving barrel, a second driving unit, a lock unit, and a lock core. When the lock core is in a locked state, the driving barrel is restricted from rotating by the lock core, and the knob rotates alone with respect to the driving barrel. When the lock core is in an unlocked state, the restriction to the rotation of the driving barrel by the lock core is removed, the first driving unit applies a driving force on the second driving unit when the knob rotates, and the driving force rotates the driving barrel to make the lock unit rotate together.

The knob lock of the present invention includes a knob, a first driving unit disposed on the knob, a driving barrel, a second driving unit, a lock unit, and a lock core. When the lock core is in a locked state, the driving barrel is restricted from rotating by the lock core, and the knob rotates alone with respect to the driving barrel. When the lock core is in an unlocked state, the restriction to the rotation of the driving barrel by the lock core is removed, the first driving unit applies a driving force on the second driving unit when the knob rotates, and the driving force rotates the driving barrel to make the lock unit rotate together.

A combination lock is provided, the combination lock having a rotary latch configured for rotation between a locked position and an unlocked position, the rotary latch rotating in a first plane; and a bolt configured for movement between a first position and a second position along a second plane the second plane being oriented at a different location than the first plane, the bolt engaging the rotary latch in the first position such that rotation of the rotary latch from the locked position to the unlocked position is prevented.

A combination lock is provided, the combination lock having a rotary latch configured for rotation between a locked position and an unlocked position, the rotary latch rotating in a first plane; and a bolt configured for movement between a first position and a second position along a second plane the second plane being oriented at a different location than the first plane, the bolt engaging the rotary latch in the first position such that rotation of the rotary latch from the locked position to the unlocked position is prevented.

A lock including a removable dial is provided. The lock includes locking means configured to lock and unlock a removable dial to replace the dial or to service the lock. The locking means are moveable between a first locked position and a second unlocked position in which the dial may be removed. The locking means may comprise a finger-actuated button that is biased in the locked position by compression means. The compression means may comprise a spring. Applying force to the button overcomes the counterforce being exerted by the compression means and the front facing dial can be easily removed. To replace the dial, force must again be applied to the locking means to move the locking means to the second unlocked position or alternatively the shaft of the dial is inserted into the housing and snaps into place.

A lock including a removable dial is provided. The lock includes locking means configured to lock and unlock a removable dial to replace the dial or to service the lock. The locking means are moveable between a first locked position and a second unlocked position in which the dial may be removed. The locking means may comprise a finger-actuated button that is biased in the locked position by compression means. The compression means may comprise a spring. Applying force to the button overcomes the counterforce being exerted by the compression means and the front facing dial can be easily removed. To replace the dial, force must again be applied to the locking means to move the locking means to the second unlocked position or alternatively the shaft of the dial is inserted into the housing and snaps into place.

A combination lock is provided, the lock having a latch movably mounted to a housing of the lock for movement between a locked position and an unlocked position; and a bolt movably mounted to the housing of the lock for movement between a first position and a second position, wherein the combination lock is a key-controlled combination changing permutation lock wherein a button disposed away from a rear exterior surface of the housing in a first direction rearwardly away from the rear exterior surface is depressed in order to change the combination of the combination lock and the housing has a button protection feature extending rearwardly away from the rear exterior surface of the housing in the first direction proximate to the button and the button protection feature extends farther away from the rear exterior surface of the housing in the first direction than the button.