Abstract: Disclosed herein is a redundant boltwork mechanism comprises a master lock plate and a sublock plate slidably coupled to the master lock plate. A first lock is coupled to the mater lock plate and a second lock is coupled to the sublock plate. A cross slide with a plurality of bolts and at least one other slide are coupled to the safe door such that turning that handle of the safe door causes movement of the cross slide and at least one other slide from a first position to a second position, allowing the safe door to be opened. The safe door can be unlocked by unlocking either the first lock or the second lock, which causes the second lock tongue to retract from blocking the at least one slide.

Abstract: An automatic messy code character wheel coded lock includes a housing and a lock case capable of rotating with respect to the housing provided on the housing in a penetrating mode. A lock cylinder assembly is provided in one end of the lock case, and a lock piece is connected to the other end of the lock case. A character wheel shaft is provided in the housing. Several bushings are sleeved on the character wheel shaft. Each bushing is sleeved with a character wheel capable of driving the bushing to rotate together or rotate relatively. Several code characters are provided on a side wall of the character wheel. Each character wheel is provided with a pair of character wheel magnets having opposite poles, and the character wheel shaft is provided with one character wheel shaft magnet corresponding to each pair of character wheel magnets.

Abstract: A system includes a storage device storing a set of instructions and at least one processor in communication with the storage device. When executing the instructions, the at least one processor is configured to cause the system to obtain a request to close a lock such that the lock is in a locked status, and actuate a control device to cause a locking mechanism of the lock to move toward a first position. The at least one processor may also cause the system to determine whether operation information of the lock satisfies a condition relating to an operation of the lock, and actuate the control device to cause the locking mechanism to move to the first position or a second position based on a result of the determination as to whether the operation information of the lock satisfies the condition.

Abstract: The invention relates to a mechanical lock (37) for a plurality of keys (26) that can be authorized with a different code (39), with discriminated opening using a selection device (1) that can be activated manually from outside, a signaling element for displaying the selected code (2) (3), a manual closure (4) and locking (19) (15) mechanism, integrated with a modular set of lockers (FIG. 15) for delivery home and collection of parcels. The invention allows the use of a limited number of modular lockers for a larger set of users without requiring computer applications, electricity or an internet connection during the delivery, which is especially for common areas of communities of residents, building lobbies, housing estates, shared spaces or offices.

Abstract: The present invention relates to a locker dial lock, and more specifically has been made to enhance convenience of use by rotating a knob for operating a locking lever of a dial lock to a reset position not to a locking or opening position, and then identifying or resetting a combination of dials so as to simply change and reset the combination.

Abstract: Maneuver element of the type composed by an element provided, on each end, with a protruding grip and centrally with safety means which can be activated under pressure and controlled from outside, apt to engage the structure on which it is mounted and to prevent the rotation, said pressure activated means, being composed of a button system having a central hole, housed within a depression of said maneuver element, and partially protruding from it, from the base of said button system abutting engaging and retaining plugs, housed free to move longitudinally within the holes obtained in said maneuver element, characterized in that fast remote identification means of the functionality of said maneuver and pressure fast activation means of said engaging and retaining plugs are associated with said button system, said pressure fast activation means of said plugs being composed by the association of engaging elements mounted on a rotor with driving and retaining elements provided on a stator complementary to said ro

Abstract: A padlock with a dual unlocking system, namely, a key mechanism and a combination mechanism. The key mechanism has a bolt or latch passing through a pole/pole cover secured around a portion of a shackle, the bolt in contact with the shackle so as to prevent movement of the shackle relative to the key mechanism when the key mechanism is in a locked state. The bolt/latch is able to move relative to the shackle to allow the shackle to move relative to the housing and pole so as to release the toe of the shackle from the housing when the key mechanism is in an unlocked state. The combination mechanism allows clutches to move relative to the housing into a lock open position when dials are in an opening combination that allows the pole to move relative to the housing so as to release the toe.

Abstract: An improved lockable container, which is configured to resist being pried open or being otherwise successfully attacked within predetermined time and tool set limits. Also, methods for manufacturing and/or assembling embodiments of the lockable container.

Abstract: A combination locking arrangement includes a locking member, at least first and second tumbler discs, a dial, and a code change mechanism. When each of the tumbler discs is rotated to an unlocking orientation, the locking member is movable from a locking position to a releasing position. The dial is rotatable about a tumbler disc axis for selective rotation of the at least first and second tumbler discs. The dial includes a clutch rotationally securable in interlocking engagement with the first tumbler disc. The code change mechanism is rotatable to a code change position to separate the clutch from the first tumbler disc, such that the dial is subsequently rotatable to rotate the clutch with respect to the first tumbler disc.

Abstract: The invention relates a composite coded lock for a bag, said lock comprises a central lock hook in the middle, at least one side lock hook, a bottom shell, a locking device, a clamping device and a linkage, wherein the locking device is fixed on a casing and has a key lock and a coded lock; the coded lock has a controlled lock blade which has a limiting portion; the limiting portion is controlled by the key lock and the coded lock to move between an unlocking position and a locking position; the clamping device has a clamping pedestal fixed on one side of the bottom shell; the clamping pedestal is provided with a locking piece clamped with the side lock hook and a push and control block used for controlling the movement of the locking piece; the linkage is arranged on the bottom shell.

Abstract: The present invention is directed to a padlock that includes a body and a shackle that has a toe portion and a heel portion. The shackle can be released from the body from a locked mode to a lock opened mode by upward movement of the shackle away from the body. The padlock also includes a combination locking mechanism configured to control the heel portion of the shackle when a correct combination is arranged on the combination locking mechanism. The combination locking mechanism may be reconfigured so that a new combination is entered for the combination locking mechanism. The padlock also includes a key locking mechanism that includes a cylinder operatively connected to a cam for controlling movement of the cam. The padlock may be placed in the lock opened mode by either the combination locking mechanism or the key locking mechanism.

Abstract: A padlock can be unlocked by an owner dialing an unlocking number or security personnel using a general key. The padlock includes a housing, a block, a shackle, a general locking device and a private locking device. The housing includes a first channel and a second channel therein. The block is inserted in the second channel. The block includes a receptacle therein. The shackle includes a long arm movably disposed in the first channel and a short arm for engagement with the receptacle of the block. The general locking device is disposed in the housing for locking and unlocking the long arm of the shackle. The private locking mechanism is disposed in the housing for controlling the block so that the block can be engaged with and disengaged from the short arm of the shackle.

Abstract: A lock for luggage, travelcases, briefcases and the like that can be unlocked by setting a combination using a combination mechanism of the lock, and, alternatively, by using a key in a key mechanism of the lock. An indicator of the lock moves to signal when the lock has been unlocked by use of the key mechanism. In some embodiments the indicator can only be reset after the lock has been unlocked using the combination mechanism. In some embodiments the indicator is automatically reset when the lock is unlocked using the combination mechanism. In some embodiments the lock is a padlock that has a shackle defined, at least in part, by a flexible cable.

Abstract: Techniques are generally described for a lock system. An example lock system includes a lock with a lock module that controls a lock mechanism. The lock is configured to transmit optical signals to a key. The key reflects the optical signals back to the lock. The key is configured to encode the optical signals with a combination. The lock module is configured to determine whether the combination is valid. The lock module actuates the locking mechanism when the key is determined to be valid.

Abstract: A padlock that can be locked and unlocked by both dials and a secondary opening mechanism, the padlock including a lock body, a shackle with a long leg and a short leg where the shackle can move between a locked configuration in which the short leg is secured in the lock body and an opened configuration in which the short leg is removable from the lock body. The padlock includes a combination mechanism, including a plurality of clutches mounted around the long leg of the shackle and corresponding dials mounted in the lock body each having teeth configured to engage with an extended fin of one of the clutches and a top cap seal configured to prevent the combination mechanism from being pulled apart from the lock body. A cam having a hole formed therein is configured to allow a key-user to decode a code used to unlock the padlock.

Abstract: A multiple function lock, which has dual, independently operated, locking mechanisms. In one embodiment, the multiple function lock is further comprised of a combination locking mechanism and a keyed locking mechanism. In one embodiment, the multiple function lock is further comprised of a gate mechanism for selectively securing and releasing a shackle of the lock.

Abstract: The present invention is directed to a zipper lock that includes an actuator operatively connected to an actuation plate and a blocking plate positioned relative to the actuation plate so as to at least partially block the movement of the actuation plate when the zipper lock is in the locked configuration. The actuator and the actuation plate are configured for interaction so as to transform movement of the actuator into movement of the actuation plate when the zipper lock is in an unlocked configuration. The zipper lock further includes a latch control plate operatively connected to the actuator, and operatively connected to a latch, in which the latch includes a locking finger configured for locking engagement with at least one locking head that is configured to retain a zipper pull tab to the zipper lock when the zipper lock is in a locked configuration.

Abstract: An electronic and manual lock assembly having a lock housing, a mechanical lock, an electric motor, and a shackle having a pair of legs. The shackle can be unlocked relative to the housing by having one leg pivotally connected with the housing and the other leg rotated out of the housing. The lock includes a first stop member that prevents one leg from being rotated out of the housing. The first stop member is moveable as a result of unlocking the mechanical lock. The lock includes a second stop member that prevents one of the legs from being rotated out of the lock housing and is moveable as a result of operating the electric motor. The first stop member and the second stop member are independently moveable by the mechanical lock and the electric motor.

Abstract: An electronic and manual lock assembly having a lock housing, a mechanical lock, an electric motor, and a shackle having a pair of legs. The shackle can be unlocked relative to the housing by having one leg pivotally connected with the housing and the other leg rotated out of the housing. The lock includes a first stop member that prevents one leg from being rotated out of the housing. The first stop member is moveable as a result of unlocking the mechanical lock. The lock includes a second stop member that prevents one of the legs from being rotated out of the lock housing and is moveable as a result of operating the electric motor. The first stop member and the second stop member are independently moveable by the mechanical lock and the electric motor.

Abstract: A travel padlock for securing an article comprises a housing having a shackle, a key lock and a combination lock. An indicator having at least first and second positions is moved from the first position to the second position upon insertion of an object longitudinally into a key hole of the key lock. In at least one embodiment, at least a portion of the indicator extends beyond the exterior of the housing when in the second position. In addition, in at least one embodiment of the present invention the shackle may be rotated to reset the indicator from the second position back to the first position. Furthermore, in at least one embodiment of the present invention the indicator may be reset from the second position back to the first position without rotating the shackle or unlocking the combination lock. Methods of making and using the padlock are also provided.

Abstract: The present invention relates to a combination and keyed bag lock with a pop-up hood. In one embodiment, a lock having a post and a rigid seat with a fixed rim is provided. A hood with a cylinder received within the post and an arm extending from the post is further provided. A key hole is within the cylinder. The arm of the hood houses a combination lock. A knob is rotatable relative the cylinder, and the hood pops up under actuation of the knob when the combination is accurately entered. The hood also pops up when the key is used to unlock the lock. The arm separates vertically from the seat when the hood pops up thereby allowing the body of a slide fastener to exit the lock.

Abstract: By employing a deadbolt construction for virtually eliminating the ability of the shackle to be removed from the housing by the application of excessive force, an effective, easily produced, padlock is achieved which also incorporates two separate and independent locking systems formed in a single padlock. In the present invention, a single housing and a single shackle assembly are employed and are constructed for enabling the shackle to be released from locked engagement with the housing using either a rotatable dial combination construction or a key activated tumbler construction. Furthermore, the rotatable combination defining dials, which controls the release of the shackle using the preset combination, are coaxially aligned, peripherally surrounding the key controlled tumbler/cylinder. As a result, a compact construction is realized, as well as an efficient and effective release construction which is shared by both the combination controlled section as well as the key controlled section.

Abstract: A padlock can be unlocked by an owner dialing an unlocking number or security personnel using a general key. The padlock includes a housing, a block, a shackle, a general locking device and a private locking device. The housing includes a first channel and a second channel therein. The block is inserted in the second channel. The block includes a receptacle therein. The shackle includes a long arm movably disposed in the first channel and a short arm for engagement with the receptacle of the block. The general locking device is disposed in the housing for locking and unlocking the long arm of the shackle. The private locking mechanism is disposed in the housing for controlling the block so that the block can be engaged with and disengaged from the short arm of the shackle.

Abstract: A door locking system with an idle handle has a door panel having a front face, a rear face, a hinged side, a free side, an upper side, a lower side, and an electronic lock and a mechanical lock installed in the door panel respectively having a keypad and a keyhole on the front face. The system further has a level toggler, at least one bolt, a chamber defined therein, a handle seat, a handle lever, a latch lever, a linking arm, a swivel pillar, a paddle shifter, an upright toggler, and an handle lever resume spring.

Abstract: According to the present invention, a key box is provided to include: a body; a cover, pivotally connected with the body to render an open state and a closed state; and a panel set, embedded on the cover, comprising a keypad module and a lock module. Wherein, by manipulating either the keypad module or the lock module, the open state and the closed state can be switched.

Abstract: A travel padlock for securing an article comprises a housing having a shackle, a key lock and a combination lock. An indicator having at least first and second positions is moved from the first position to the second position upon insertion of an object longitudinally into a key hole of the key lock. In at least one embodiment, at least a portion of the indicator extends beyond the exterior of the housing when in the second position. In addition, in at least one embodiment of the present invention the shackle may be rotated to reset the indicator from the second position back to the first position. Furthermore, in at least one embodiment of the present invention the indicator may be reset from the second position back to the first position without rotating the shackle or unlocking the combination lock. Methods of making and using the padlock are also provided.

Abstract: A dual locking device includes a first casing and a second casing. A receiving space is defined between the first casing and the second casing. The second casing has a through hole defined therein. An axial shaft passes through the through hole. A latch member is connected with the axial shaft. A locking mechanism and a key operated mechanism are received in the receiving space. The locking mechanism is connected with the axial shaft for driving the axial shaft. The key operated mechanism has a lock core disposed therein and having a key hole defined therein for being inserted and rotated by a key, such that the lock core drives the axial shaft. Accordingly, the locking mechanism and the key operated mechanism are separately operable to move the latch member between a locking position and an unlocking position.

Abstract: A door locking system with an idle handle has a door panel having a front face, a rear face, a hinged side, a free side, an upper side, a lower side, and an electronic lock and a mechanical lock installed in the door panel respectively having a keypad and a keyhole on the front face. The system further has a level toggler, at least one bolt, a chamber defined therein, a handle seat, a handle lever, a latch lever, a linking arm, a swivel pillar, a paddle shifter, an upright toggler, and an handle lever resume spring.

Abstract: A mechanical-combination door lock has a housing assembly, a lever assembly, a disable mechanism and a combination mechanism. The housing assembly is adapted to securely mount on a door. The lever assembly is mounted though the housing assembly and has a lock body, a lock bolt, an outer lever, an inner lever, a lock core, a lock rod and a linking gear wheel. The disable mechanism is mounted in the housing assembly above the lever assembly and has a retaining ring, a resetting resilient element and a turning rod. The combination mechanism is mounted in the housing assembly and has a pintle, multiple sleeves and multiple wheels. The mechanical-combination door lock has mechanical-combination detection and resetting functions and is allowed to be temporarily disabled while the door is open.

Abstract: By employing a deadbolt construction for virtually eliminating the ability of the shackle to be removed from the housing by the application of excessive force, an effective, easily produced, padlock is achieved which also incorporates two separate and independent locking systems formed in a single padlock. In the present invention, a single housing and a single shackle assembly are employed and are constructed for enabling the shackle to be released from locked engagement with the housing either a rotatable dial combination construction or a key activated tumbler construction. Furthermore, the rotatable combination defining dials, which controls the release of the shackle using the preset combination, are coaxially aligned, peripherally surrounding the key controlled tumbler/cylinder. As a result, a compact construction is realized, as well as an efficient and effective release construction which is shared by both the combination controlled section as well as the key controlled section.

Abstract: A padlock includes a housing, a shackle, a limit knob, a movable block and a lock core. The housing has an opening in a wall thereof. The shackle has a shaft portion movably mounted in the housing, and a locking portion extended from the shaft portion and located outside of the housing. The limit knob is partly received in the housing via the opening and has a button located outside of the housing. The movable block is disposed on the limit knob and capable of moving to a predetermined position which is outside of the housing. The lock core has a rotor configured to be driven by a key so as to move the limit knob to a first position where the button of the limit knob keeps the shackle from rotating and a second position where the button of the limit knob allows the shackle to rotate.

Abstract: Disclosed are apparatus and methodology for providing a resettable manual entry combination and key operated cam lock. Methodologies are provided for enabling changing of the manual entry resettable combination given knowledge of the previous combination and possession of an operable key. In alternative embodiments, provisions are made to prohibit forced opening of the lock by way of the use of foreign objects.

Abstract: A dual locking device includes a first casing and a second casing. A receiving space is defined between the first casing and the second casing. The second casing has a through hole defined therein. An axial shaft passes through the through hole. A latch member is connected with the axial shaft. A locking mechanism and a key operated mechanism are received in the receiving space. The locking mechanism is connected with the axial shaft for driving the axial shaft. The key operated mechanism has a lock core disposed therein and having a key hole defined therein for being inserted and rotated by a key, such that the lock core drives the axial shaft. Accordingly, the locking mechanism and the key operated mechanism are separately operable to move the latch member between a locking position and an unlocking position.

Abstract: A dual-function padlock includes a lock body, a numeral detent unit, a U-shaped hook, a hook member, a numeral unlocking member, and a lock core unit, providing a simple configuration. By an operation portion of a numeral unlocking member, the padlock can be unlocked by using numerals and can be conveniently locked without the need to match correct numerals.

Abstract: A code changing mechanism for a mechanical combination lock, comprises function keys; two rows of code number keys on the lock body; a code-changing rack; an intermediate gear; a code-changing lock core with keyhole; and gear modules connected with each code number key, each gear module comprises a code-changing gear and controlling chip. There is a groove for resetting code provided on the gear; the chip inserted in the groove forming a code reset site; a code free site provided between the chip and gear; a left and a right straight rack; and the rack engages with a corresponding row of code-changing gears. The lock core coaxially connects with the intermediate gear, the intermediate gear engages with two opposing code-changing gears thereof. A movable sheet is under each of the keys. The code is changeable without disassembling any component, making the mechanism convenient, swift, flexible, reliable, with robust anti-crack capability.

Abstract: Locks for luggage, travelcases, briefcases and the like that can be operated by setting a combination or by using a key include an indicator to provide a signal in response to use of the key. The locks retain relatively movable components in latched engagement when locked, and permit relative movement of the components when unlocked. In some embodiments, the indicator provides a visual signal if an associated travelcase has been opened for inspection by unlocking the associated lock using a key; and, in some embodiments, the indicator can be reset upon entry of a proper combination.

Abstract: A lock housing for a security drawer is disclosed. The lock drawer system includes a cabinet drawer having a front wall including a front surface and a rear surface and a combination lock on the drawer with a combination lock dial. The drawer includes a lock housing defining an enclosure within which the dial can fit and extend through. The lock housing also includes a combination lock dial window. The system integrates a keyed locking bolt extending through the housing and to the drawer and is removable therefrom.

Abstract: A padlock having an open indication function is provided. The padlock includes a first lock, a driving device, and an indication device. A portion of the driving device is movably disposed within a key hole of the first lock. The indication device moves in combination with the driving device. A bottom end of the indication device is connected to a top end of the driving device. In addition, the indication device is selectively disposed between a first position and a second position. When a key is inserted into the key hole of the first lock, the key pushes the driving device to force the indication device moving from the first position to the second position.

Abstract: A card lock and key lock assembly includes a housing, a lock latch movably disposed in the housing, a swivel member pivoted to the housing and having a block portion stoppable against the lock latch, a card key lock disposed in the housing and having a lifting plate, a rotating shaft, and a hook plate connected with the lifting plate and engagable with the rotating shaft for driving the rotating shaft to rotate when the lifting plate is moved downwards, such that the rotating shaft is stoppable against the swivel member for driving the block portion of the swivel member to move away from the lock latch, and a pin tumbler lock disposed in the housing and having a plug with an arm portion for driving the block portion of the swivel member to move away from the lock latch when the plug is rotated to an unlocked position.

Abstract: A multiple function lock comprising a body, an engaging element having a first end and a second end, a locking mechanism for securing the first end and the second end of the engaging element to the body, and a gate mechanism for selectively concealing or revealing a passage in the body through which the second end may move to unlock the lock. In certain embodiments, a multiple function lock may comprise a body, a U-shaped shackle having toe and heel portions, the heel portion rotatably secured within the body, a locking mechanism for locking the heel and the toe portions within the body, a passage through the body adjacent to the toe portion, the toe portion adapted to move through the passage to unlock the lock, and either a retaining cup, an adjustable gate, or an outer housing, each being adapted to selectively block or reveal the passage.

Abstract: A rotating disk lock mechanism that includes a lock housing containing a plurality of rotatable disks. Each disk having a central aperture and being positioned in a stack such that the central apertures form a keyway. At least one of the disks includes a reduced central aperture with a diameter that is substantially less than a diameter of at least another one of the central apertures. The combination of the lock mechanism is determined in part by the number of disks with reduced central apertures and their placement in the stack.

Abstract: A double system lock apparatus comprises a lock shell, a combination lock, a key lock, and a control piece set. The lock shell has a panel and a main base assembled with each other. The combination lock has a plurality of rotating discs, coupling springs, couplings, and a shaft. The key lock has a lock cylinder and a sleeve set. From back to front, the control piece set has a first control piece, a second control piece, and a third control piece. By means of the control piece set working between the combination lock and the key lock, a double system lock apparatus of simple structure but well function has been formed.

Abstract: By providing two separate and independent locking system formed in a single padlock construction which is employed for securely holding and locking zipper pull tabs, an effective, easily produced, padlock is achieved which is responsive to both a combination controlled locking system and a key controlled locking system for independently enabling the zipper pull tabs to be released and/or lockingly engaged in response to the activation of either locking system. In the present invention, an easily assembled, compact, highly efficient dual mode, zipper pull locking system is achieved by employing a pair of spring biased locking latch members which are constructed for being inserted in the apertures formed in each of the conventional zipper pulls/tabs employed on luggage, briefcases, and the like.

Abstract: A door lock is openable by a key from outside and by a combination mechanism from the inside. The interior combination mechanism may alternatively be supplemented by a key mechanism. The combination is entered by positioning the hands of a simulated clock, an array of push buttons, an array of sliding rods, or a rotating dial. A method is also provided for changing the combination.

Abstract: A padlock that can be unlocked by the owner of the padlock by dialing an unlocking number or by authorized security personals with a general key. The padlock mainly contains a lock body, a block, a shackle, a general locking device and a private locking device. The lock body has a first channel and a second channel therein. The block is engaged with the second channel. The block has a receptacle therein. The shackle has a longer arm slidably received in the first channel and a shorter arm engageable with the receptacle of the block. The general locking device is formed in the lock body for locking or unlocking the longer arm of the shackle. The private locking device is formed in the lock body for controlling movements of the block in order the block to be engaged with or disengaged from the shorter arm of the shackle.

Abstract: A multiple dial lock includes reset dials rotatable around a lock shaft. Each reset dial must be at a specific angular position for a user to unlock the lock or reset the combination. Each reset dial has a magnet. A master key includes sensors, each in communication with one signal. Each of the signals indicates to a user that a respective magnet is adjacent a respective sensor, thus assisting a user in recovering a lost combination. A rotary lock includes a dial which rotates a drive cam, which in turn rotates several wheels to their unlocking positions. One magnet for each wheel is provided on the drive cam. Each magnet communicates with one sensor provided on a master key, which also includes signals, indicating that a respective magnet is adjacent a respective sensor, thus assisting a user in recovering a lost combination.

Abstract: A lock structure including an activation device, a combination lock, and a setting device is provided. The combination lock has a plurality of dials, a shaft passing through the dials, and a plurality of first gears disposed on one side of each dial. Each first gear further includes a missing tooth. One end of the shaft is connected to the activation device. The setting device has 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. When the activation device is activated, the second gears are driven to rotate the first gears, so that when each second gear runs free with the missing tooth of each first gear, the dials are in a predetermined position. That is, by means of the activation device and the setting device, the dials of the combination lock can automatically return to the predetermined position after opening or closing the lock.

Abstract: A lock includes a housing and a key-operated lock core mounted on the housing. The key-operated lock core has a spindle with a keyhole defined therein. The spindle is movable between an original position where the spindle is allowed to be rotated with respect to the housing to put the lock in a locked or unlocked state, and an indicative position where the spindle is also allowed to be rotated to put the lock in the locked or unlocked state.

Abstract: A lock includes a housing, a locking mechanism and an indicator. The locking mechanism is disposed in the housing and includes a first module and a second module both configured to lock or unlock the lock. The indicator is able to move from an original position to an indicative position outside the housing in response to operation of the first module. However, when being located in the indicative position, the indicator is unresponsive to the operation of the first module.

Abstract: A combination lock having a combination lock mechanism and a key lock mechanism. The combination lock mechanism is able to unlock and lock the combination lock by switching a plurality of dials exposed on the surface of the combination lock, while the key lock mechanism allows the user to unlock the combination lock with a key.