Patent Publication Number: US-2021180364-A1

Title: Mortise lock and mortise lock systems and methods

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation of U.S. patent application Ser. No. 16/136,979 filed Sep. 20, 2018, docket BAS-2018506-01-US, titled MORTISE LOCK AND MORTISE LOCK SYSTEMS AND METHODS, the entire disclosure of which is expressly incorporated by reference herein 
    
    
     FIELD 
     The present disclosure relates to mortise locks and in particular to mortise locks having multiple actuators to lock at least one operator input device against rotation. 
     BACKGROUND 
     Mortise locks are known. Known mortise and cylindrical locks can be electronically locked down when a signal is received by a fob or other device. 
     Conventional split hub mortise locks have a first hub which is rotatable by a first operator input device to cause a retraction of the latch bolt of the mortise lock and a second hub which is rotatable by a second operator input device to cause a retraction of the latch bolt of the mortise lock. Published PCT application No. WO2012/097410 discloses an exemplary split hub mortise lock. 
     SUMMARY 
     In embodiments, a mortise lock system may include a plurality of hub lock actuators which may be independently actuatable to inhibit a retraction of a latch bolt of the mortise lock system. One of the plurality of hub lock actuators may be electrically driven and responsive to a lockdown command received from a remote device. 
     In embodiments, a mortise lock is provided that has a common hub lock which is engageable with one or more hubs to inhibit retraction of a latch bolt of the mortise lock, the common hub lock being actuatable by a plurality of hub lock actuators. 
     In an exemplary embodiment of the present disclosure, a mortise lock is provided. The mortise lock comprising a mortise housing; a latch bolt movable between an extended position and a retracted position; a first latch hub supported by the mortise housing and operatively coupled to the latch bolt; a second latch hub supported by the mortise housing and operatively coupled to the latch bolt independent of the first latch hub; a hub lock movable between (a) a first position wherein each of the first latch hub and the second latch hub are capable of being rotated to move the latch bolt to the retracted position and (b) a second position wherein only one of the first latch hub and the second latch hub is capable of being rotated to move the latch bolt to the retracted position; a first hub lock actuator supported by the mortise housing; and a second hub lock actuator supported by the mortise housing. Each of the first hub lock actuator and the second hub lock actuator is capable of moving the hub lock from the first position to the second position independent of the other of the first hub lock actuator and the second hub lock actuator. 
     In embodiments, once the hub lock is in the second position due to an actuation of one of the first hub lock actuator and the second hub lock actuator, a subsequent actuation of the other of the first hub lock actuator and the second hub lock actuator is unable to return the hub lock back to the first position. 
     In embodiments, the second hub lock actuator is driven in response to an electrical input from an electric controller and the first hub lock actuator is driven in response to a mechanical input. In a variation, the mechanical input is a movement of an operator input accessible from an exterior of the mortise lock. In another variation, the electrical input drives a motor to actuate the first hub lock actuator. 
     In embodiments, the hub lock comprises a base member; a first locking toggle supported by the base member and including a first engagement feature which is positionable to engage an engagement feature of the first latch hub; and a second locking toggle supported by the base member and including a first engagement feature which is positionable to engage an engagement feature of the second latch hub. The first locking toggle is positionable relative to the base member in a first position and a second position, the first position of the first locking toggle relative to the base member results in the first engagement feature of the first locking toggle engaging the engagement feature of the first latch hub when the hub lock is in the second position and the second position of the first locking toggle relative to the base member results in the engagement feature of the first locking toggle remaining disengaged from the engagement feature of the first latch hub when the hub lock is in the second position. The second locking toggle is positionable relative to the base member in a first position and a second position, the first position of the second locking toggle relative to the base member results in the first engagement feature of the second locking toggle engaging the engagement feature of the second latch hub when the hub lock is in the second position and the second position of the second locking toggle relative to the base member results in the engagement feature of the second locking toggle remaining disengaged from the engagement feature of the second latch hub when the hub lock is in the second position. 
     In embodiments, the first hub lock actuator includes an engagement feature which interacts with a first engagement feature of the hub lock to move the hub lock from the first position to the second position and the second hub lock actuator includes an engagement feature which interacts with a second engagement feature of the hub lock to move the hub lock from the first position to the second position. 
     In embodiments, the first hub lock actuator is disengaged from the hub lock when the hub lock is moved to the second position by the second hub lock actuator. 
     In embodiments, the second hub lock actuator is engaged with the hub lock when the hub lock is moved to the second position by the first hub lock actuator. 
     In embodiments, the first hub lock actuator includes a cam and a locking lever operatively coupled to the cam, the cam having a first cam position wherein the locking lever is positioned to permit the hub lock to be in the first position of the hub lock and a second cam position wherein the locking lever is positioned to hold the hub lock in the second position of the hub lock. 
     In embodiments, the second hub lock actuator includes a motor, a gear assembly movable by the motor, and a coupler driven by the gear assembly, the coupler having a first position wherein the hub lock is permitted to be in the first position of the hub lock and the coupler having a second position wherein the hub lock is held in the second position of the hub lock. In a variation thereof, the gear assembly includes a worm gear rotatably mounted to the motor and a sector gear driven by the worm gear. 
     In another exemplary embodiment of the present disclosure, a mortise lock is provided. The mortise lock comprising a mortise housing; a latch bolt supported by the mortise housing and movable between an extended position and a retracted position; a latch hub supported by the mortise housing and operatively coupled to the latch bolt; and a plurality of hub lock actuators supported by the mortise housing. Each of the plurality of hub lock actuators are actuatable to selectively cause engagement with a common engagement feature of the latch hub to prevent the latch hub from being positionable to move the latch bolt to the retracted position. 
     In embodiments, a first hub lock actuator of the plurality of hub lock actuators is driven in response to an electrical input from an electric controller and a second hub lock actuator of the plurality of hub lock actuators is driven in response to a mechanical input. In a variation, the first hub lock actuator of the plurality of hub lock actuators is actuatable independent of the second hub lock actuator of the plurality of hub lock actuators. In another variation, when the common engagement feature of the latch hub is engaged due to an actuation of one of the first hub lock actuator of the plurality of hub lock actuators and the second hub lock actuator of the plurality of hub lock actuators, a subsequent actuation of the other of the first hub lock actuator of the plurality of hub lock actuators and the second hub lock actuator of the plurality of hub lock actuators is unable to disengage the common engagement feature of the latch hub to permit retraction of the latch bolt due to a rotation of the latch hub. In a further variation, each of the first hub lock actuator of the plurality of hub lock actuators and the second hub lock actuator of the plurality of hub lock actuators are operatively engageable with a common hub lock, the hub lock being positionable by either of the first hub lock actuator of the plurality of hub lock actuators and the second hub lock actuator of the plurality of hub lock actuators to engage the common engagement feature of the latch hub. 
     In a further exemplary embodiment of the present disclosure, a method of inhibiting a retraction of a latch bolt of a mortise lock is provided. The method comprising the steps of: receiving an input to a first hub lock actuator to inhibit retraction of the latch bolt of the mortise lock, the first hub lock actuator being one of a plurality of hub lock actuators; and actuating the first hub lock actuator to cause an engagement with a common engagement feature of a retraction assembly of the mortise lock to inhibit retraction of the latch bolt of the mortise lock, each of the plurality of hub lock actuators being capable of causing the engagement of the common engagement feature of the retraction assembly of the mortise lock to inhibit retraction of the latch bolt of the mortise lock. 
     In embodiments, the method further comprises the steps of: receiving an input to a second hub lock actuator to permit retraction of the latch bolt of the mortise lock; and maintaining the first hub lock actuator in engagement with the common engagement feature of the retraction assembly of the mortise lock to continue to inhibit retraction of the latch bolt of the mortise lock. In a variation, the method further comprises the step of retracting the latch bolt of the mortise lock through a second engagement feature of the retraction assembly of the mortise lock while the first hub lock actuator remains in engagement with the common engagement feature of the retraction assembly. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The above-mentioned and other features and advantages of this disclosure, and the manner of attaining them, will become more apparent and will be better understood by reference to the following description of exemplary embodiments taken in conjunction with the accompanying drawings, wherein: 
         FIG. 1  illustrates a representative view of an exemplary mortise lock system of the present disclosure; 
         FIG. 2  illustrates an exterior face of a door including an exemplary mortise lock system of the present disclosure; 
         FIG. 3  illustrates an interior face of the door and mortise lock system of  FIG. 2 ; 
         FIG. 4  illustrates an exploded view of the mortise lock system and the door of  FIG. 3 ; 
         FIG. 5  illustrates an exploded view of mortise lock system and the door of  FIG. 2 ; 
         FIG. 6  illustrates the mortise lock of  FIG. 2  with a cover exploded to illustrate the interior components of the mortise lock; 
         FIG. 7  illustrates the mortise lock of  FIG. 6  with the cover removed and an operator input device coupled to a latch hub of the mortise lock; 
         FIG. 8  illustrates a partial exploded view of the mortise lock of  FIG. 6 ; 
         FIGS. 9A and 9B  illustrate a mechanical hub lock actuator of the mortise lock in an unlocked position whereby an engagement feature of a hub lock of the mortise lock is disengaged from an engagement feature of the latch hub of the mortise lock; 
         FIGS. 10A and 10B  illustrate the mechanical hub lock actuator of the mortise lock shown in  FIGS. 9A and 9B  in a locked position whereby the engagement feature of the hub lock of the mortise lock is engaged with the engagement feature of the latch hub of mortise lock; 
         FIG. 11  illustrates the arrangement of  FIG. 10A  for the mechanical hub lock actuator and an electrically driven hub actuator of the mortise lock also in a locked position in response to a received lockdown signal from a remote device; 
         FIG. 12  illustrates the arrangement of  FIG. 9A  for the mechanical hub lock actuator and the electrically driven hub actuator of the mortise lock positioned in a locked position in response to the received lockdown signal from the remote device; and 
         FIG. 13  illustrates an exemplary system including a plurality of mortise locks of  FIG. 2  and exemplary remote devices for sending a lockdown input signal to the plurality of mortise locks. 
     
    
    
     Corresponding reference characters indicate corresponding parts throughout the several views. The exemplifications set out herein illustrate exemplary embodiments of the present disclosure and such exemplifications are not to be construed as limiting the scope of the present disclosure in any manner. 
     DETAILED DESCRIPTION OF THE DRAWINGS 
     For the purposes of promoting an understanding of the principles of the present disclosure, reference is now made to the embodiments illustrated in the drawings, which are described below. The embodiments disclosed herein are not intended to be exhaustive or limit the present disclosure to the precise form disclosed in the following detailed description. Rather, the embodiments are chosen and described so that others skilled in the art may utilize their teachings. Therefore, no limitation of the scope of the present disclosure is thereby intended. Corresponding reference characters indicate corresponding parts throughout the several views. 
     The terms “couples”, “coupled”, “coupler” and variations thereof are used to include both arrangements wherein the two or more components are in direct physical contact and arrangements wherein the two or more components are not in direct contact with each other (e.g., the components are “coupled” via at least a third component, but yet still cooperate or interact with each other). 
     In some instances throughout this disclosure and in the claims, numeric terminology, such as first, second, third, and fourth, is used in reference to various components or features. Such use is not intended to denote an ordering of the components or features. Rather, numeric terminology is used to assist the reader in identifying the component or features being referenced and should not be narrowly interpreted as providing a specific order of components or features. 
     Referring to  FIG. 1 , a mortise lock system  100  is represented. Mortise lock system  100  includes a mortise lock housing  102  which is received in a mortise opening (not shown) in a door (not shown). A pair of operator input devices  110 A,  110 B extend from the mortise lock housing  102  with operator input device  110 A positioned on a first side  104  of mortise lock housing  102  and operator input device  110 B positioned on a second side  106  of mortise lock housing  102 . 
     Operator input devices  110 A,  110 B are coupled to respective latch hubs  112 A,  112 B through spindle shafts  114 A,  114 B. Latch hubs  112 A,  112 B are part of a retraction assembly  120  of mortise lock system  100 . Retraction assembly  120  further includes a retractor  122  which is operatively coupled to both of latch hubs  112 A,  112 B and to latch bolt  124 . Exemplary retractors include levers and other devices which are capable of applying a mechanical force, directly or indirectly, to latch bolt  124 . As is known, latch bolt  124  generally extends beyond mortise lock housing  102  to engage with a recess in a corresponding door strike to lock the door in a closed position, but may be retracted further into or completely within mortise lock housing  102  to disengage the latch bolt  124  from the recess in the corresponding door strike to unlock the door. 
     Each of operator input devices  110 A,  110 B and latch hubs  112 A,  112 B are rotatable about axis  126 . Through a rotation of operator input device  110 A, hub  112 A actuates retractor  122  which in turn actuates latch bolt  124  to move the latch bolt  124  from an extended position relative to the mortise lock housing  102  to a retracted position relative to the mortise lock housing  102 . In a similar manner, through a rotation of operator input device  110 B, hub  112 B actuates retractor  122  which in turn actuates latch bolt  124  to move the latch bolt  124  from an extended position relative to the mortise lock housing  102  to a retracted position relative to the mortise lock housing  102 . Mortise lock assembly  100  is illustrated with two independently actuatable hubs  112 A,  112 B. In embodiments, a single hub may be used in place of latch hubs  112 A,  112 B. 
     A hub lock  140  is operatively coupled to one or both of latch hubs  112 A,  112 B and positionable in a first position wherein each of latch hubs  112 A,  112 B are capable of being rotated about axis  126  to move latch bolt  124  to the retracted position and a second position wherein only one of latch hubs  112 A,  112 B is capable of being rotated about axis  126  to move latch bolt  124  to the retracted position. In embodiments, when hub lock  140  is in the second position the operator input device  110 A which is positioned on an interior side of the door may be rotated about axis  126  to cause a rotation of latch hub  112 A about axis  126  and hence a retraction of latch bolt  124  and the operator device  110 B which is positioned on an exterior side of the door is prohibited from rotating about axis  126 , thereby blocking rotation of latch hub  112 B about axis  126 . 
     Hub lock  140  is movable from the first position to the second position by a plurality of independent hub lock actuators, illustratively hub lock actuator  150  and hub lock actuator  160 . In embodiments, each of hub lock actuator  150  and hub lock actuator  160  are supported by a housing of mortise lock housing  102 . Each of hub lock actuator  150  and hub lock actuator  160  is capable of moving hub lock  140  from the first position to the second position independent of the other of hub lock actuator  150  and hub lock actuator  160 . 
     In embodiments, hub lock actuator  150  is driven by a mechanical input  152  while hub lock actuator  160  is driven by an electrical input  162 . Exemplary mechanical inputs  152  include a rotation of cam driven by a key rotated in a mortise cylinder, a rotation of a thumb knob, or a rotation and/or translation of another operator input device which, in turn, causes a movement of hub lock actuator  150 . Exemplary electrical inputs  162  include a received wired electrical communication signals, a voltage change on a wired electrical connection, and a received wireless electrical communication signals. 
     In the illustrated embodiment of  FIG. 1 , a wireless signal is received by an electrical controller  164  through a receiver  166 . The wireless signal is sent by a transmitter  168  under the control of a separate electrical controller  170 . Electrical controller  164  includes logic which based on the received signal may provide an electrical input  162  to hub lock actuator  160  to actuate hub lock  140 . As disclosed herein, exemplary hub lock actuator  160  may include a motor which drives a movement of another component of hub lock actuator  160 . Receiver  166  and transmitter  168  may, in embodiments, be transceivers to permit two-way communication between electrical controller  164  and electrical controller  170 . 
     As stated herein, electronic controller  164  includes logic which controls the operation of hub lock actuator  160 . In embodiments, the logic may be software instructions and data stored on memory  172  which is accessible by electrical controller  164  for execution. The term “logic” as used herein includes software and/or firmware executing on one or more programmable processors, application-specific integrated circuits, field-programmable gate arrays, digital signal processors, hardwired logic, or combinations thereof. Therefore, in accordance with the embodiments, various logic may be implemented in any appropriate fashion and would remain in accordance with the embodiments herein disclosed. A non-transitory machine-readable medium comprising logic can additionally be considered to be embodied within any tangible form of a computer-readable carrier, such as solid-state memory, magnetic disk, and optical disk containing an appropriate set of computer instructions and data structures that would cause a processor to carry out the techniques described herein. This disclosure contemplates other embodiments in which electronic controller  164  is not microprocessor-based, but rather is configured to control operation of hub lock actuator  160  and/or other components of mortise lock system  100  based on one or more sets of hardwired instructions. Further, electrical controller  164  may be contained within a single device or be a plurality of devices networked together or otherwise electrically connected to provide the functionality described herein. 
     Electrical controller  164  is further operatively coupled to a visual indicator  174  which provides a visual cue to the environment around mortise lock system  100  of the position of hub lock  140 . Exemplary visual indicators  174  include illumination devices, such as light-emitting diodes and lamps, and displays. Electrical controller  164  may further be operatively coupled to audio indicators. 
     Referring to  FIGS. 2-12 , an exemplary mortise lock system  200  is shown including a mortise lock  201 . Referring to  FIGS. 2 and 3 , mortise lock system  200  is assembled to a door  202  having an exterior face  204  (see  FIG. 2 ) and an interior face  206  (see  FIG. 3 ). Referring to  FIG. 2 , mortise lock system  200  includes an operator input device, illustratively a handle  210 , which is rotatable about an axis  212 . As explained in more detail herein, a rotation of handle  210  about axis  212  results in a latch bolt  214  of mortise lock system  200  moving from an extended position, as shown in  FIGS. 2 and 3 , to a retracted position along axis  270  (see  FIG. 8 ) wherein an end  216  of latch bolt  214  is closer to a face  218  of a housing  220  of mortise lock system  200  than in the extended position. In embodiments, end  216  of latch bolt  214  is retracted to one of a level wherein end  216  protrudes from face  218  by up to a few millimeters, a flush level with face  218  of housing  220 , or recessed below face  218  of housing  220 . 
     Mortise lock system  200  further includes a mortise cylinder  230  having an interchangeable core  232  which is actuatable by a key (not shown). As is known in the art, the interchangeable core  232  may be actuated to move a cam member (not shown) associated with mortise cylinder  230  that engages a component of mortise lock  201  to move latch bolt  214  from the extended position to the retracted position. In embodiments, mortise cylinder  230  has a non-interchangeable core having a keyway to receive a key. 
     Referring to  FIG. 3 , mortise lock system  200  further includes a second operator input device, illustratively a handle  240 , which is rotatable about axis  212 . As explained in more detail herein, a rotation of handle  240  about axis  212  results in latch bolt  214  of mortise lock system  200  moving from the extended position shown in  FIGS. 2 and 3  to the retracted position. 
     Mortise lock system  200  further includes a housing  242  secured to door  202  which may house multiple components of mortise lock system  200 , such as electrical controller  164 , receiver  166 , memory  172 , and visual indicator  174  of mortise lock system  200 . In embodiments, one or more of electrical controller  164 , receiver  166 , and memory  172  are housed in housing  220  of mortise lock system  200  instead of housing  242 . Further, housing  242  may house batteries or other power supplies. As shown in  FIGS. 4 and 5 , housing  242  includes a base  244  secured to door  202  and a cover  246  secured to base  244 . An exemplary visual indicator  248  is shown being visible from an exterior of housing  242 . In one embodiment, visual indicator  248  is illuminated when electrical controller  164  causes mortise lock system  200  to be placed in a locked configuration, as described in more detail herein. 
     Housing  220  of mortise lock  201  is received in a mortise recess  250  of door  202 . Mortise cylinder  230  is received in a recess  252  from exterior face  204  of door  202 . Mortise cylinder  230  is further received in an opening  256  in housing  220 . This positioning of mortise cylinder  230  results in the cam member (not shown) of mortise cylinder  230  being positioned to actuate a component, illustratively lever  552  (see  FIG. 8 ) of mortise lock  201  to retract latch bolt  214 . Each of handle  210  and handle  240  have an associated spindle shaft  260 A,  260 B which is received within a through aperture  262  in door  202  extending from exterior face  204  to interior face  206 . The spindle shafts  260 A,  260 B are further received in opening  258  in housing  220  of mortise lock  201 . Spindle shafts  260 A,  260 B are coupled together through a threaded shaft  261 . In embodiments, spindle shaft  260 A is permanently coupled to handle  210  and spindle shaft  260 B is threaded onto threaded shaft  261  as far as possible and subsequently rotated back at least one full rotation of spindle shaft  260 B. This permits spindle shafts  260 A,  260 B to rotate independent of each other while maintaining spindle shafts  260 A,  260 B in a coupled arrangement which, in turn, allows handle  240  to be rotated independent of handle  210 . Handle  240  is attached to spindle shaft  260 B through a set screw (not shown). 
     Referring to  FIG. 8 , mortise lock  201  includes latch hubs  300 A,  300 B. Each latch hub  300 A,  300 B includes a central opening  302 A,  302 B which receives a respective spindle shaft  260 A,  260 B (see  FIG. 7  for spindle shaft  260 A received within opening  302 A of latch hub  300 A). Each latch hub  300 A,  300 B is independently rotatable about axis  212  by the respective handles  210 ,  240 . 
     Returning to  FIG. 8 , each latch hub  300 A,  300 B is part of a retraction assembly  280  which is actuatable to retract latchbolt  214 . Each latch hub  300 A,  300 B includes a cam surface  308 A,  308 B extending from an upper engagement feature, illustratively projections  304 A,  304 B and a lower engagement feature, illustratively projections  306 A,  306 B. 
     The respective cam surface  308 A,  308 B of the respective latch hub  300 A,  300 B being rotated engages with a roller  309 . As the respective latch hub  300 A,  300 B is being rotated, roller  309  due to engagement with the respective cam surface  308 A,  308 B is moved generally rearward in direction  320 . Roller  309  is coupled to a lever  310  which extends upward to the latch bolt  314 . The rearward movement of roller  309  results in lever  310  being rotated resulting in an upper portion of lever  310  being also moved generally rearward in direction  320 . This rearward movement of lever  310  in turn results in lever  310  pressing against a flange  312  of latch bolt  214  to also move latch bolt  214  generally in direction  320  towards a retracted position of latch bolt  214 . Latch bolt  214  is generally biased towards the extended position shown in  FIG. 8  by a spring  314  carried by latch bolt  214 . 
     One or both of latch hubs  300 A,  300 B may be inhibited from rotating about axis  212  based on a position of a hub lock  350 . Hub lock  350  is movable in direction  340  to engage one or both of latch hubs  300 A,  300 B and inhibit rotation of the one or more latch hubs  300 A,  300 B about axis  212  and in direction  342  to disengage from the one or more latch bolts  300 A,  300 B to allow rotation of latch hubs  300 A,  300 B about axis  212 . As discussed herein, hub lock  350  is configurable to engage only latch hub  300 A, only latch hub  300 B, or both of latch hubs  300 A,  300 B when moved in direction  340 . 
     Referring to  FIG. 8 , hub lock  350  includes a base member  352 , a first locking toggle  354 A, and a second locking toggle  354 B. Each of locking toggles  354 A,  354 B includes an engagement feature, illustratively a pocket  370 A,  370 B, which cooperates with an engagement feature of the respective latch hub  300 A,  300 B, illustratively projections  372 A,  372 B, to inhibit a rotation of the respective latch hub  300 A,  300 B about axis  212 . Although engagement features  370  and  372  are illustrated as pockets and projections other exemplary engagement features may be implemented including abutment surfaces, tabs, and other suitable engagement features. 
     Each locking toggle  354 A,  354 B is coupled to base member  352  of hub lock  350  through a respective fastener  356 A,  356 B. Locking toggles  354 A,  354 B include pins  358  which are received in openings  360  of base member  352 . Pins  358  and openings  360  cooperate to orient locking toggles  354 A,  354 B relative to base member  352 . 
     Base member  352  of hub lock  350  further includes a lower mounting aperture  362  and an upper mounting aperture  364 . Fasteners  356 A,  356 B can secure the respective locking toggle  354 A,  354 B to base member  352  by being threaded into either of lower mounting aperture  362  or upper mounting aperture  364 . 
     As explained in more detail herein, hub lock  350  may be moved between an upper position in direction  340  due to an actuation of one of a plurality of hub lock actuators and a lower position in direction  342 . If locking toggle  354 A or locking toggle  354 B is secured to base member  352  by the respective fastener  356 A,  356 B being received in the lower mounting aperture  362 , then the respective engagement feature  370 A,  370 B of the respective locking toggle  354 A,  354 B is not engaged with the corresponding engagement feature  372 A,  372 B of the respective latch hub  300 A,  300 B when hub lock  350  is moved to the upper position. If locking toggle  354 A or locking toggle  354 B is secured to base member  352  by the respective fastener being received in the upper mounting aperture  364 , then the respective engagement feature  370 A,  370 B of the respective locking toggle  354 A,  354 B is engaged with the corresponding engagement feature  372 A,  372 B of the respective latch hub  300 A,  300 B when hub lock  350  is moved to the upper position. An advantage, among others, of the modularity of hub lock  350  is that mortise lock  201  may be reconfigured for a left-handed door installation or a right-handed door installation. 
     Referring to  FIGS. 9A, 9B, 10A, and 10B , locking toggle  354 A is secured to base member  352  with fastener  364 A received in upper mounting aperture  364  and locking toggle  354 B is secured to based member  352  with fastener  364 B received in lower mounting aperture  362 . As shown in  FIGS. 9A and 9B , when hub lock  350  is moved downward in direction  342  both pocket  370 A of first locking toggle  354 A and pocket  370 B of second locking toggle  354 B are disengaged from the respective projections  372 A,  372 B of the respective latch hubs  300 A,  300 B. Thus, each of latch hubs  300 A,  300 B are capable of rotation about axis  212 . As shown in  FIGS. 10A and 10B , hub lock  350  is moved upward in direction  340  and pocket  370 A of first locking toggle  354 A is engaged with projections  372 A of latch hub  300 A while pocket  370 B of second locking toggle  354 B remains disengaged from projections  372 B of latch hub  300 B. Thus, latch hub  300 B continues to be capable of rotation about axis  212  while latch hub  300 A is inhibited from being rotated relative to axis  212 . This results in handle  210  positioned on exterior face  204  of door  202  being locked (not permitting retraction of latch bolt  214 ) and handle  240  positioned on interior face  206  of door  202  being unlocked (permitting retraction of latch bolt  214 ). 
     The positioning of hub lock  350  in either the raised position of  FIGS. 10A and 10B  or the lowered position of  FIGS. 9A and 9B , is controlled by a plurality of hub lock actuators. In the illustrated embodiment, mortise lock  201  includes a first, mechanically driven hub lock actuator system  400  (see  FIGS. 7 and 8 ) and a second, electrically driven hub lock actuator system  500  (see  FIGS. 7 and 8 ). 
     Referring to  FIG. 8 , mechanically driven hub lock actuator system  400  includes a locking lever  404 . Locking lever  404  has a hub lock engagement feature, illustratively a projection  406 , which engages with an engagement feature, illustratively a projection  408 , of hub lock  350 . As shown in  FIG. 10A , an upper surface of projection  406  engages a lower surface of projection  408  when locking lever  404  is raised in direction  340 ; thereby raising hub lock  350  in direction  340 . 
     Mechanically driven hub lock actuator system  400  further includes a cam  420  supported on a rotatable base member  418  which is rotatable about an axis  412 . Cam  420  has a first surface  422  which contacts surface  410  of locking lever  404  as rotatable base member  418  is rotated clockwise about axis  412  to raise locking lever  404  in direction  340 . Cam  420  has a second surface  424  which contacts surface  414  of locking lever  404  as rotatable base member  418  is rotated counterclockwise about axis  412  to lower locking lever  404  in direction  342 . 
     In embodiments, rotatable base member  418  is coupled to a mechanical input, such as a thumb knob accessible from interior side  206  of door  202  or a mortise cylinder  230  actuatable by a key from exterior side  204  of door  202 . In the illustrated embodiment, rotatable base member  418  includes projections  430  and  432  which cooperate with a cam member (not shown) rotatable by mortise cylinder  230  such that locking lever  404  may be raised in direction  340  or lowered in direction  342  through rotation of an authorized key inserted into interchangeable core  232 . 
     Returning to  FIG. 8 , electrically driven hub lock actuator system  500  includes a motor  502 , a worm gear  504  rotatable about a drive axis  505  of motor  502 , a sector gear  520  supported by a base member  506 , and a spring element  508 . As a drive shaft of motor  502  rotates about drive axis  505 , worm gear  504  also rotates about drive axis  505 . Worm gear  504  is engaged with the teeth of sector gear  520  and base member  506  is rotatable relative to housing  220  about axis  522  (see  FIG. 9A ) such that a rotation of worm gear  504  in a first direction causes base member  506  to rotate clockwise and a rotation of worm gear  504  in a second direction causes base member  506  to rotate counterclockwise. 
     Spring element  508  includes a coil portion  509 , a first leg portion  510 , and a second leg portion  514 . Coil portion  509  is carried by base member  506  and base member includes a projection  507  (see  FIGS. 9B and 10B ) that is positioned between first leg portion  510  and second leg portion  514 . When base member  506  rotates clockwise first leg portion  510  and second leg portion  514  also rotate clockwise and when base member  506  rotates counterclockwise first leg portion  510  and second leg portion  514  also rotate counterclockwise. 
     First leg portion  510  and second leg portion  514  of spring element  508  capture a projection  512  of base member  352  of hub lock  350 . When base member  506  rotates clockwise hub lock  350  is raised in direction  340  due to first leg portion  510  and second leg portion  514  which have captured projection  512  also rotating clockwise. When base member  506  rotates counterclockwise hub lock  350  is lowered in direction  342  due to first leg portion  510  and second leg portion  514  which have captured projection  512  also rotating counterclockwise. An advantage, among others, of utilizing spring element  508  instead of a rigid connection between base member  506  and hub lock  350  is that first leg portion  510  and second leg portion  514  may flex if the movement of hub lock  350  is blocked either due to a misalignment of latch hubs  300 A,  300 B with hub lock  350  or due to mechanically driven hub lock actuator system  400  having raised hub lock  350  in direction  340 . 
     Mechanically driven hub lock actuator system  400  and electrically driven hub lock actuator system  500  are independently actuatable to move hub lock  350  to the locked (raised) position. Referring to  FIG. 10A , mechanically driven hub lock actuator system  400  has been actuated to raise hub lock  350  to the locked (raised) position due to projection  406  of lock lever  404  contacting projection  408  of hub lock  350  and raising projection  408  in direction  340 . As shown in  FIG. 10A , electrically driven hub lock actuator system  500  remains in a configuration which would normally correspond to hub lock  350  being in the unlocked (lowered) position of  FIG. 9A  with sector gear  520  rotated counterclockwise about axis  522 . As shown in  FIG. 10B , projection  512  of hub lock  350  has been raised in direction  340  and caused a deflection of first leg portion  510  of spring element  508  of electrically driven hub lock actuator system  500 . Referring to  FIG. 9A , mechanically driven hub lock actuator system  400  has been actuated to lower hub lock  350  to the unlocked (lowered) position due to projection  406  being lowered in direction  342 . Hub lock  350  is also lowered in direction  342  due to the spring force of spring element  508 . As shown in  FIG. 9B , projection  512  of hub lock  350  has been lowered in direction  342  and projection  512  contacts both of first leg portion  510  and second leg portion  514  of spring element  508 . 
     In a similar fashion, electrically driven hub lock actuator system  500  may be actuated to raise hub lock  350  to the locked (raised) position independent of mechanically driven hub lock actuator system  400 . Referring to  FIG. 12 , motor  502  has rotated worm gear  504  to rotate sector gear  520  clockwise about axis  522 . This rotation causes second leg portion  514  to raise projection  512  and hence hub lock  350  to the locked (raised) position shown in  FIG. 12 . As shown in  FIG. 12 , locking lever  404  remains in the lowered position and projection  408  of hub lock  350  is spaced apart from projection  406  of locking lever  404 . Raising locking lever  404  in direction  340  causes no change in the state of hub lock  350  (see  FIG. 11 ). 
     In embodiments, although both mechanically driven hub lock actuator system  400  and electrically driven hub lock actuator system  500  may be moved to their corresponding locked positions, neither of mechanically driven hub lock actuator system  400  nor electrically driven hub lock actuator system  500  may move hub lock  350  from the locked position to the unlocked position unless the other of mechanically driven hub lock actuator system  400  and electrically driven hub lock actuator system  500  is also in its corresponding unlocked position. 
     In both the locked position of hub lock  350  shown in  FIG. 12  due to electrically driven hub lock actuator system  500  and the locked position of hub lock  350  shown in  FIG. 10A  due to mechanically driven hub lock actuator system  400 , second locking toggle  354 B of hub lock  350  remains spaced apart from latch hub  300 B. Therefore, even though handle  210  is inhibited from rotation about axis  212 , handle  240  is capable of rotation about axis  212  to retract latch bolt  214 . 
     Even when hub lock  350  is in the locked position of either  FIG. 10A  due to mechanically driven hub lock actuator system  400  or  FIG. 12  due to electrically driven hub lock actuator system  500 , a key (not shown) may be used to retract latch bolt  214  due to a cam member (not shown) of mortise cylinder  230  being rotated to contact an engagement surface  550  of a lever  552  which is rotatably coupled to mortise lock housing  220  about axis  554  (see  FIG. 7 ). Lever  552  is rotated clockwise and a lower portion  556  of lever  552  translates flange  312  in direction  320  (see  FIG. 8 ) to retract latch bolt  214 . 
     Referring to  FIG. 13 , mortise lock systems  200 , in one embodiment, are part of a networked system  600  which sends lockdown commands to mortise lock systems  200  to actuate electrically driven hub lock actuator system  500  and place handle  240  in a locked state. When handle  240  of mortise lock systems  200  are locked due to the reception of a lockdown signal visual indicator  248  on an interior side  206  of door  202  flashes red and an audio announcer (not shown) may be activated. 
     The lockdown signal may be sent by a handheld device  602  or a remote computer  608 . Exemplary handheld devices  602  include fobs and cellular phones having an input  610 , such as a button or touch region on a display, that is actuated or selected. Handheld device  602  and remote computer  608  communicate with mortise lock systems  200  through various network components, such as network repeaters  604  and gateways  606 . In embodiments, remote computer  608  communicates with mortise lock systems  200  through a gateway  606  which is coupled to a local area network, wide area network, or Internet. Additional details of exemplary lockdown systems are provided in PCT Published Application WO2012/116037, titled WIRELESS LOCK WITH LOCKDOWN, the entire disclosure of which is expressly incorporated by reference herein. 
     While this invention has been described as having exemplary designs, the present invention can be further modified within the spirit and scope of this disclosure. This application is therefore intended to cover any variations, uses, or adaptations of the invention using its general principles. Further, this application is intended to cover such departures from the present disclosure as come within known or customary practice in the art to which this invention pertains.