Remote lock

Abstract

Disclosed herein is a remote lock of a multipoint lock assembly, the remote lock comprising a cartridge housing containing a bolt having a retracted position and an extended position in which the bolt extends out from a first side of the cartridge housing; and an auxiliary bolt having a retracted position and an extended position in which the auxiliary bolt extends out from the first side of the cartridge housing, the auxiliary bolt being biased to the extended position; remote engagement structure for engagement with a primary lock of a multipoint lock assembly, the remote engagement structure movable from a first position to a second position in response to a user input to the primary lock, to move the bolt from the extended position to the retracted position; wherein the auxiliary bolt is operatively engageable with the bolt to hold the bolt in the retracted position when the auxiliary bolt is in its extended position; and the auxiliary bolt is operatively disengaged from the bolt when the auxiliary bolt is in its retracted position; and wherein when the auxiliary bolt is operatively engaged with the bolt to hold the bolt in its retracted position, the bolt is only movable to its extended position on movement of the auxiliary bolt to its retracted position.

Description

REMOTE LOCKField

[0001] The invention relates to remote lock bodies, and in particular, remote lock bodies that are useful in multipoint lock assemblies.Background

[0002] Multipoint lock systems generally include a primary central lock assembly which is operatively connected to one or more (generally two) secondary locks. These secondary locks are generally installed at upper and lower locations on a door. Multipoint locks offer the advantage of greater security than compared with a standalone central lock assembly.

[0003] The secondary locks are user actuated between the retracted and engaged states via the primary central lock assembly. Typically, the central lock assembly includes an internal slide that may be driven, for example by key or snib, between various states to unlock and lock the bolt of the primary central lock assembly and to retract and extend the bolts of the secondary multipoint lock assemblies. Alternatively, the central lock assembly includes internal slide(s) that may be driven by lever, between various states to retract and extend the bolt of the primary central lock assembly and to retract and extend the bolts of the secondary multipoint lock assemblies.

[0004] In some multipoint lock systems, particularly electronically actuated lock systems, in order to extend the bolts on the secondary multipoint locks, a user needs to actuate a lever in a first direction which causes the slide within the primary central lock assembly to move in a first direction to a first position of engagement with one or more components to extend the bolts on the multipoint locks. For example, a user rotates a handle in an upwards direction, which moves the slide into engagement with a component for driving the bolts in the multipoint locks into the engaged position.

[0005] To retract the bolts, a user then actuates a lever which causes the slide within the primary central lock to move in a second direction into a second position of engagement with one or more components to both retract the bolt in the primary central lock and to retract the bolts in the multipoint locks. In instances where bolts of the multipoint locks are not in the engagedstate, then actuation of the central lever would then only retract the bolt of the primary central lock assembly.

[0006] The arrangements have a number of issues. One issue is that users often forget to actuate the multipoint locks when locking the door since this generally requires a user to rotate a lever or handle in the upwards direction. Thus, an additional and non-intuitive action is required by a user to engage the multipoint locks. If the handle is not actuated upwards and locked then only the primary central lock has the bolt extended and therefore results in reduced security.

[0007] Another issue is that, particularly in the case of locks that are driven by an internal slide mechanism, if the door is warped at the top and / or bottom of the door, then the remote bolts may not align with the openings in the respective remote strike plates. If one (or both) of the remote bolts are out of alignment then the door cannot be locked at all. That is, not even the central lock assembly can be locked. This is because the remote bolt / remote strike misalignment prevents the central lock from being actuated to its locked configuration. That is, the misalignment causes the central lock body to be jammed, for example, an actuator (e.g. an internal slide mechanism) in the central lock cannot be moved to its locking position since the misalignment of one (or both) of the remote bolts prevents the slide from moving.

[0008] Another issue with typical non-electric locks, such as those described above, is that they cannot be easily adapted to electronic locks. To adapt these designs to an electronic lock would require motor(s) to drive the internal slide and drive the bolts in the remote locks. This would require a large motor and / or gearbox with large batteries.

[0009] It is desirable to provide a remote lock, such as for use in a multipoint lock system, that addresses one or more of the above problems, in particular but not limited to for use with electronic locks.

[0010] It is an object of the invention to address at least one shortcoming of the prior art and / or provide a useful alternative.

[0011] Reference to any prior art in the specification is not an acknowledgment or suggestion that this prior art forms part of the common general knowledge in any jurisdiction or that this prior art could reasonably be expected to be understood, regarded as relevant, and / or combined with other pieces of prior art by a skilled person in the art.Summary of Invention

[0012] In one aspect of the invention, there is provided a remote lock of a multipoint lock assembly, the remote lock comprising: a cartridge housing containing: a bolt having a retracted position and an extended position in which the bolt extends out from a first side of the cartridge housing; and an auxiliary bolt having a retracted position and an extended position in which the auxiliary bolt extends out from the first side of the cartridge housing, the auxiliary bolt being biased to the extended position; remote engagement structure for engagement with a primary lock of a multipoint lock assembly, the remote engagement structure movable, in response to a user input to the primary lock, to move the bolt from the extended position to the retracted position; wherein the auxiliary bolt is operatively engageable with the bolt to hold the bolt in the retracted position when the auxiliary bolt is in its extended position; and the auxiliary bolt being operatively disengaged from the bolt when the auxiliary bolt is in its retracted position; and wherein when the auxiliary bolt is operatively engaged with the bolt to hold the bolt in its retracted position, the bolt is only movable to its extended position on movement of the auxiliary bolt to its retracted position.

[0013] In an embodiment, the remote engagement structure is substantially contained within the cartridge housing.

[0014] In an embodiment, the bolt is spring biased to the extended position. The spring bias may be direct or indirect. That is, in one or more forms, the bolt is directly spring biased to the extended position, for example by a spring in direct contact with the bolt. However, in other embodiments, the bolt is indirectly spring biased, such as via spring bias applied to one or more other components which then act on the bolt.

[0015] In one form of the above embodiment, when the auxiliary bolt is moved from the extended position to the retracted position, the auxiliary bolt is configured to operatively disengage from the bolt to allow the bolt to move under the spring bias to the extended position.

[0016] In an embodiment, the remote lock further comprises an actuator operatively engageable with the bolt, the actuator being movable between a rest position and an actuated position to move the bolt between the extended position and the retracted position.

[0017] In one form of the above embodiment, when the actuator is in its rest position the bolt is in the extended position, and when the actuator is in its actuated position, the bolt is in the retracted position.

[0018] In one form of the above embodiment, the actuator comprises engagement structure engageable with a complimentary engagement structure on the bolt.

[0019] It is preferred that the engagement structure of the actuator and the complimentary engagement structure of the bolt are configured to deadlatch the bolt when the bolt is in the extended position.

[0020] The term ‘deadlatch’ and its derivatives, such as ‘deadlatched’ and ‘deadlatching’, are well understood by the skilled person. However, for avoidance of doubt, the term ‘deadlatch’ (and its derivatives) are intended to define that the bolt is locked from movement from the extended position to the retracted position due to an externally applied force to an end of the bolt. By externally applied force, it is meant a force that originates from outside the lock assembly. For example, an intruder attempting to circumvent the lock by pushing the bolt inward to the retracted position.]

[0021] In an embodiment, the engagement structure of the actuator and the complimentary engagement structure of the bolt are configured to lock the bolt in the extended position against movement of the bolt to the retracted position on application of an externally applied force to a projecting end of the bolt.

[0022] It is preferred that the engagement structure of the actuator is in the form of a drive boss and the complimentary engagement structure of the bolt is in the form of a channel, the drive boss being located within the channel; or the engagement structure of the actuator is in the form of a channel and the complimentary engagement structure of the bolt is in the form of a drive boss, the drive boss being located within the channel.

[0023] It is further preferred that the drive boss and the channel are configured to permit an initial movement of the actuator from the rest position toward the actuated position without movement of the bolt.

[0024] In one form of the above embodiment, the actuator is a slide that is linearly translatable between its rest position and its actuated position within the cartridge housing of the remote lock.

[0025] It is preferred that the channel includes a straight portion and a curved portion, and wherein when the bolt is extended and the actuator is in the rest position, the drive boss is seated in the straight portion to deadlatch the bolt in the extended position.

[0026] It is preferred that the straight portion of the channel is aligned in the direction of movement of the slide such that movement of the drive boss within the straight portion does not cause movement of the bolt.

[0027] It is preferred that when the drive boss is seated within the straight portion of the channel, the bolt is deadlatched in the extended position.

[0028] It is preferred that when the drive boss is seated in the straight portion the bolt is locked in the extended position against movement of the bolt to the retracted position on application of an externally applied force to a projecting end of the bolt.

[0029] It is further preferred that movement of the drive boss within the curved portion causes movement of the bolt between its extended and retracted positions.

[0030] In one form of the above embodiment, on movement of the auxiliary bolt to its extended position, the auxiliary bolt is configured to engage the actuator when the actuator is in its actuated position to hold the actuator in the actuated position.

[0031] It is preferred that the auxiliary bolt comprises engagement structure configured to engage a complimentary engagement structure on the actuator to hold the actuator in the actuated position.

[0032] It is preferred that the auxiliary bolt and actuator each comprise mutually engageable shoulders that are configured to engage when the actuator is in the actuated position and on movement of the auxiliary bolt to its extended position, and when engaged hold the actuator in the actuated position.

[0033] It is further preferred that the auxiliary bolt and actuator are disengaged when the auxiliary bolt is in its retracted position.

[0034] In one form of the above embodiment, the auxiliary bolt is operatively engageable or engaged with the bolt via the actuator.

[0035] In one form of the above embodiments, when the remote engagement structure is in the first position, the remote engagement structure is, is configured to be, or can be operatively disengaged from the actuator, and the actuator can be in either the rest position or the actuated position; and / or when the remote engagement structure is in the second position, the remote engagement structure is operatively engaged with the actuator, and the actuator is in the actuated position.

[0036] In one form of the above embodiments, the remote engagement structure is configured to operatively engage with the actuator to move the actuator from the rest position to the actuated position on movement of the remote engagement structure from the first position to the second position; and / or the remote engagement structure is configured to operatively disengage from the actuator when the remote engagement structure is moved from the second position to the first position.

[0037] In an embodiment, when the remote engagement structure is in the first position, the remote engagement structure is operatively disengaged from the bolt, and the bolt can be in either the extended position or the retracted position; and / or when the remote engagement structure is in the second position, the remote engagement structure is operatively engaged with the bolt, and the bolt is in the retracted position.

[0038] In an embodiment, the remote engagement structure is configured to operatively engage with the bolt to move the bolt from the extended position to the retracted position on movement of the remote engagement structure from the first position to the second position; and / or theremote engagement structure is configured to operatively disengage from the bolt when the remote engagement structure is moved from the second position to the first position.

[0039] In an embodiment, the remote engagement structure extends out of a second side of the cartridge housing opposite the first side to receive the user input.

[0040] In one form of the above embodiments, the remote lock further comprises a driver operatively engageable with the actuator, the driver having a neutral position and a driven position, the driver configured to receive a user input via the remote engagement structure to move the driver from the neutral position to the driven position.

[0041] In one arrangement thereof, when the driver is in the neutral position, the driver is operatively disengaged from the actuator, and the actuator can be in either the rest position or the actuated position; and / or when the driver is in the driven position, the driver is operatively engaged with the actuator, and the actuator is in the actuated position.

[0042] In one arrangement thereof, the driver is configured to operatively engage with the actuator to move the actuator from the rest position to the actuated position on movement of the driver from the neutral position to the driven position; and / or the driver is configured to operatively disengage from the actuator when the driver is moved from its driven position to its neutral position.

[0043] In forms of the above embodiments, the driver is operatively engageable with the bolt via the actuator.

[0044] In an embodiment, the remote lock further comprises a driver operatively engageable with the bolt, the driver having a neutral position and a driven position, the driver configured to receive a user input via the remote engagement structure to move the driver from the neutral position to the driven position.

[0045] In one form of the above embodiments, when the driver is in the neutral position, the driver is operatively disengaged from the bolt, and the bolt can be in either the extended position or the retracted position; and / or when the driver is in the driven position, the driver is operatively engaged with the bolt, and the bolt is in the retracted position.

[0046] In one form of the above embodiments, the driver is configured to operatively engage with the bolt to move the bolt from the extended position to the retracted position on movement of the driver from the neutral position to the driven position; and / or the driver is configured to operatively disengage from the bolt when the driver is moved from the driven position to the neutral position.

[0047] In one form of the above embodiments, the driver comprises a first portion retained within the cartridge housing operatively engaged with the actuator, and a second portion extending out of a second side of the cartridge housing opposite the first side, the second portion comprising the remote engagement structure.

[0048] It is preferred that the driver and the remote engagement structure are integrally formed, and / or are a unitary piece, and / or are in a fixed relationship.

[0049] In one form of the above embodiments, when the auxiliary bolt is operatively engaged with the bolt to hold the bolt in its retracted position, the retractable bolt is not movable to its extended position via actuation or movement of the driver.

[0050] In an embodiment, when the auxiliary bolt is operatively engaged with the bolt to hold the bolt in its retracted position, the retractable bolt is not movable to its extended position via actuation or movement of the remote engagement structure and / or in response to the user input.

[0051] In an embodiment, when the auxiliary bolt is operatively engaged with the bolt to hold the bolt in its retracted position, the retractable bolt is not movable to its extended position in response to the user input.

[0052] In another aspect of the invention, there is provided a multi-point lock system comprising a primary lock and one or more remote locks according to the first aspect of the invention, and / or embodiments, and / or forms thereof; wherein the bolt is configured to be retracted on actuation of the primary lock, for example, to retract a bolt of the primary lock.

[0053] As used herein, except where the context requires otherwise, the term "comprise" and variations of the term, such as "comprising", "comprises" and "comprised", are not intended to exclude further additives, components, integers or steps.Brief Description of Drawings

[0054] Further aspects of the present invention and further embodiments of the aspects described in the preceding paragraphs will become apparent from the following description, given by way of example and with reference to the accompanying drawings.

[0055] Figure 1 is an exploded perspective view of a multipoint lock system including a remote lock assembly in accordance with one embodiment of the invention for installation into a door frame.

[0056] Figure 2 is a perspective view illustrating the multipoint lock system of Figure 1 installed on door frame in a door closed position.

[0057] Figure 3 is a perspective view illustrating the multipoint lock system of Figure 1 showing the arrangement of central lock assembly, upper and lower multipoint lock assemblies and connecting drive rod.

[0058] Figure 4 is an exploded perspective view of a remote lock assembly of the multipoint lock system of Figure 1 from a first side thereof.

[0059] Figure 5 is an exploded perspective view of a remote lock assembly of the multipoint lock system of Figure 1 from a second side thereof.

[0060] Figure 6 is a perspective view of a remote lock assembly of the multipoint lock system of Figure 1 engaged with a strike plate.

[0061] Figure 7 is a top-down plan view of a remote lock assembly of the multipoint lock system of Figure 1 engaged with a strike plate.

[0062] Figure 8 is a top-down plan view of a remote lock assembly of the multipoint lock system of Figure 1 disengaged with a strike plate.

[0063] Figure 9 is an internal view of the remote lock assembly of the multipoint lock system of Figure 1 in the door closed position.

[0064] Figure 9 is an internal view of the remote lock assembly of the multipoint lock system of Figure 1 in the door closed position after initial actuation of a driver, such as in response to a user input to a central lock of the multipoint lock assembly.

[0065] Figure 11 is an internal view of the remote lock assembly of the multipoint of the lock system of Figure 1 in the door open position with the driver in its actuated position.

[0066] Figure 12 is an internal view of the remote lock assembly of the multipoint of the lock system of Figure 1 in the door open position with the driver returned to its neutral position.

[0067] Figure 13 is an exploded perspective view, from a first side thereof, of an embodiment of a central lock assembly usable in a multipoint lock system with a remote lock according to one or more embodiments of the invention.

[0068] Figure 14 is an exploded perspective view, from a second side thereof, of the central lock assembly of Figure 13.

[0069] Figure 15 is an internal perspective view of the central lock assembly of Figure 13 in the door closed position.

[0070] Figure 16 is an internal perspective view of the central lock assembly of Figure 13 in the door open position.

[0071] Figure 17 is a perspective view of the rear of the central lock assembly Figure 13 showing engagement structure for engagement with remote locks according to one or more embodiments of the invention.

[0072] Figure 18 is an internal view of the central lock assembly of Figure 13 showing the arrangement of components when the central lock assembly is an unlocked operating state with retractable bolt in the extended position, e.g., in passage mode.

[0073] Figure 19 is an internal view of the central lock assembly of Figure 13 showing the arrangement of components when a user actuates the central lock assembly from the unlocked operating state of Figure 18 to a door open position.

[0074] Figure 20 is an internal view of the central lock assembly of Figure 13 showing the arrangement of components after a user has released a handle upon placing the lock in the door open position of Figure 19.

[0075] Figure 21 is an internal view of the central lock assembly of Figure 13 showing the arrangement of components when the central lock assembly is in a privacy or deadlocked mode and the door is in the closed position.

[0076] Figure 22 is an internal view of the central lock assembly of Figure 13 showing the arrangement of components when the central lock assembly is in a privacy or deadlocked mode and the door is in the closed position after partial actuation of the door handle.

[0077] Figure 23 is an internal view of the central lock assembly of Figure 13 showing the arrangement of components when a manually actuated lock slide override arm of the central lock assembly is actuated.

[0078] Figure 24 is an internal view of the central lock assembly of Figure 13 showing the arrangement of components when a user actuates the lock assembly to move the door into the open position whilst the override is active as illustrated in Figure 23.

[0079] Figure 25 illustrates a multipoint lock assembly of the lock system of Figure 1 in the unlocked, closed door state.

[0080] Figure 26 illustrates a multipoint lock assembly of the lock system of Figure 1 in an actuated unlocked, open door state.

[0081] Figure 27 illustrates a multipoint lock assembly of the lock system of Figure 1 in an unlocked, open door state.

[0082] Figure 28 illustrates a multipoint lock assembly of the lock system of Figure 1 in the deadlocked or privacy locked, closed door state.

[0083] Figure 29 illustrates a multipoint lock assembly of the lock system of Figure 1 in the deadlocked or privacy locked, closed door state after partial actuation of the door handle.

[0084] Figure 30 illustrates a multipoint lock assembly of the lock system of Figure 1 in the unlocked, closed door state, but wherein a bolt in one of the remote locks has been unable to extend due to misalignment with a strike plate on door closure.

[0085] Figure 31 is an exploded perspective view, from a first side thereof, of another embodiment of a central lock assembly usable in a multipoint lock system with a remote lock according to one or more embodiments of the invention.

[0086] Figure 32 is an exploded perspective view of the central lock assembly of Figure 31 from a second side thereof.

[0087] Figure 33 is an internal view of the lock assembly of Figure 31 showing the arrangement of components when the lock assembly is in a deadlatched state.

[0088] Figure 34 is an internal view of the lock assembly of Figure 31 showing the arrangement of components when the deadlatch override has been actuated by a user.

[0089] Figure 35 is an internal view of the lock assembly of Figure 31 showing the arrangement of components when the lock assembly is in a user actuated state.

[0090] Figure 36 is an internal view of the lock assembly of Figure 31 showing the arrangement of components when the lock assembly is in a door open state.Description of Embodiments

[0091] The invention will be described below in relation to one or more embodiments thereof.

[0092] Figure 1 is an exploded perspective view of a lock system 100 from the interior side for installation into a door frame 102, illustrating a lock system and / or lock components according to one embodiment of the invention.

[0093] Lock system 100 comprises an interior door handle furniture 104 having a door handle 105, an exterior door handle furniture 106 having a door handle 107, a central lock assembly 108 having a retractable bolt 109 extending from a first side of central lock assembly 108, and upper and lower remote lock assemblies 110A and HOB having retractable bolts 111 A and11 IB respectively, each of remote lock assemblies 110A and HOB being operatively connected to central lock assembly 108 via a drive rod 112. In this embodiment, remote lock assemblies 110A and HOB exhibit the same design.

[0094] Central lock assembly 108 and remote lock assemblies 110A and HOB advantageously have a slim design with a width that is less than standard locks, this is in part due to the arrangement of the internal components within central lock assembly 108. This is advantageous since it additionally allows lock system 100 to be installed in doors with thinner door frames, such as security doors / screen doors and the like. In particular, and as will be discussed in more detail, the central axis of spindle passage 1330 is offset by greater than 25 mm from door engagement surface of door mount tabs 113 A and 113B. Preferably, the offset is greater than 26 mm, more preferably greater than 27 mm, even more preferably greater than 28 mm. In this particular embodiment, the offset is about 28.5 mm. The hole openings for furniture bosses and furniture screws are also offset by the same amount.

[0095] Door frame 102 includes edgewise cavities 114, 116A, 116B for receiving central lock assembly 108, and upper and lower remote lock assemblies 110A and 110B respectively, and which are affixed thereto by screws.

[0096] Door frame 102 also include first and second lateral openings 120A and 120B which pass from an exterior facing side through to the interior facing side thereof to allow installation of interior door handle furniture 104 and exterior door handle furniture 106 in an operatively connected manner. In particular, door handles 105 and 107 are operatively connected with each other and with central lock assembly 108 via a spindle 122. In this way, when the central lock assembly 108 is in passage mode, either of door handles 105 and 107 may be actuated, such as by a user applying a downward force to rotate handles 105 and 107, to turn spindle 122 and retract bolt 109. Likewise, in this mode, when the user actuates door handles 105 and 107, drive rod 112 is translated from a rest position to an actuated position to retract bolts 111 A and 11 IB within remote lock assemblies 110A and 110B respectively. Interior door handle furniture 104 includes button 124 which is operable to unlock the door from the interior side as will be discussed in more detail below.

[0097] Figure 2 is a perspective view illustrating lock system 100 installed on door frame 102 with retractable bolts 109, 111 A, and 11 IB in the extended state, such as when the door withlock system 100 installed thereon is in a closed position. Figure 3 is a perspective view illustrating lock system 100 as per Figure 2 but without door frame 102 and showing the arrangement of central lock assembly 108 and upper and lower remote lock assemblies 110A and HOB via drive rod 112.

[0098] Whilst Figure 1 and Figure 2 illustrate a lock system 100 comprising central lock assembly 108 and remote lock assemblies 110A and HOB, the skilled person will appreciate that aspects and embodiments of the invention are directed to remote lock assemblies themselves, and that these remote lock assemblies may be used with a variety of different central lock assemblies.

[0099] Figure 4 and Figure 5 are exploded perspective views of remote lock assembly 110A (which is the same as remote lock assembly 110B) from first and second sides thereof.

[0100] Remote lock assembly 110A comprises a cartridge housing formed from a cartridge body 400 and cover plate 402 which are affixed together via screws. The cartridge housing contains retractable bolt 111A mounted about pin 403, torsion spring 404 to spring bias retractable bolt 111 A to the extended position, an actuator in the form of slide 406, driver 408, auxiliary bolt 410, and compression spring 412 to spring bias the auxiliary bolt to the extended position.

[0101] Figure 4 and Figure 5 also show drive rod 112, which does not form part of remote lock assembly 110A, but which couples to a portion of driver 408 that extends out of the housing formed between body 400 and cover plate 402.

[0102] Retractable bolt 111A is rotatable about a pin 403 between an extended position in which an end portion, in the form of a hook, extends outside the cartridge housing to engage with, as illustrated in Figure 6, strike plate 600 via recess 602 and a retracted position in which retractable bolt 111 A is substantially housed within the cartridge housing and is disengaged from strike plate 602. Retractable bolt 111 A is spring biased to the extended position via torsion spring 404.

[0103] Retractable bolt 111 A can be retracted by a user on rotation of handles 105 or 107 via drive rod 112. User rotation of handles 105 or 107 causes, by way of central lock assembly 108, linear displacement of drive rod 112. Drive rod 112 is in fixed connection with driver 408 suchthat when drive rod 112 is moved upwards (e.g., as a result of user actuation of handles 105 or 107) driver 408 is likewise moved upwards within the body of remote lock assembly 110A from a neutral position to a driven position, which in turn, causes retraction of retractable bolt 111 A.

[0104] In more detail, driver 408 is operable to retract retractable bolt 111A via slide 406. Slide 406 comprises drive boss 414 which is located within channel 416 of retractable bolt 111A and shoulder 418 which is engageable with drive surface 420 of driver 408. On user actuation of handles 105 or 107, drive rod 112 is linearly displaced to move driver 408 from its neutral position to its driven position. Movement of driver 408 from its neutral position to its driven position causes drive surface 420 of driver 408 to push against shoulder 418 of slide 406. In this way, driver 408 pushes slide 406 linearly upwards within the housing of remote lock assembly 110A from its rest position to its actuated position and holds slide 406 in the actuated position.

[0105] Movement of slide 406 also results in upwards movement of drive boss 414 within channel 416 of retractable bolt 111A. Channel 416 includes a straight portion and a curved portion (illustrated more clearly in Figures 7 to 10). The straight portion of channel 416 is oriented in the direction of movement of slide 406. When slide 406 is in its rest position, drive boss 414 is located within the straight portion of channel 416. On movement of slide 406 to its actuated position, drive boss 414 freely moves within the straight portion of channel 416 without abutting a wall of the channel and thus, without causing corresponding movement of bolt 111 A. However, on continued movement of slide 406 to its actuated position, drive boss 414 moves into the curved portion of channel 416 where it abuts a wall of channel 416 with continued movement of slide 406 causing retraction of bolt 110A via interaction between drive boss 414 and the wall within the curved portion of channel 416.

[0100] When a user subsequently releases handles 105 or 107, handles 105 or 107 are sprung to their neutral position which resets drive rod 112 to its original position. Since drive rod 112 is fixedly connected to driver 408, the return of drive rod 112 to its original position also moves driver 408 from its driven position back to its neutral position, and thus slide 406 is no longer held in the actuated position by driver 408. However, movement of driver 408 does not necessarily cause slide 406 to be returned from its actuated position to its rest position since driver 408 is not in fixed connection with slide 406. In some modes of operation, slide 406 likewise returns to its rest position due to the spring bias on retractable bolt 111 A returning retractable bolt 111 A to the extended position, which in turn, causes slide 406 to return to its restposition due to interaction between drive boss 414 and channel 416. In other modes of operation, when driver 408 returns to its neutral position, slide 406 is held in its actuated position by other lock components, such as auxiliary bolt 410. In this mode of operation, when driver 408 returns to its neutral position, drive surface 420 of driver 408 disengages from shoulder 418 of slide 406.

[0106] Auxiliary bolt 410 is generally operable to hold retractable bolt 111A in the retracted position when a door, in which lock assembly 110A is installed in, is in the open position. Auxiliary bolt 410 has a retracted position in which it is substantially housed within the cartridge housing of remote lock assembly 110A and an extended position in which auxiliary bolt 410 extends from the cartridge housing. Auxiliary bolt 410 is biased to the extended position by compression spring 412.

[0107] Auxiliary bolt 410 interacts with strike plate 600 such on door closure, auxiliary bolt 410 which is initially in the extended state, comes into contact with strike plate 600 which pushes against auxiliary bolt 410 to substantially push auxiliary bolt within the cartridge housing of remote lock assembly 110A. Once the door is closed, auxiliary bolt 410 is held within the cartridge housing by strike plate 600. This is illustrated in Figure 7 which is a top-down view showing interaction between strike plate 600 and remote lock assembly 110A in the door closed position. As can be seen, auxiliary bolt 410 is pushed within cartridge housing by strike plate 600 with only a tip portion of auxiliary bolt 410 projecting from cartridge housing and abutting strike plate 600. On opening of the door, auxiliary bolt 410 disengages from strike plate 600 and is moved to its extended position under spring force provided by compression spring 412 as illustrated in Figure 8.

[0108] The function of auxiliary bolt 410 is to hold retractable bolt 111A in its retracted position against the spring bias of torsion spring 404 when the door on which remote lock assembly 110A is installed is open. To achieve this, auxiliary bolt 410 is engaged with retractable bolt 111A to hold retractable bolt 111A in the retracted state when auxiliary bolt 410 is in the extended state and is disengaged from retractable bolt 111A when auxiliary bolt 410 is in the retracted state.

[0109] In this embodiment, auxiliary bolt 410 is engaged with retractable bolt 111A via slide 406. As generally discussed above, slide 406 and retractable bolt 111A are operativelyconnected via arrangement of drive boss 414 and channel 416 such that when slide 406 is in the rest position, retractable bolt 111 A is in the extended position; and when slide 406 is in the actuated position, retractable bolt 111 A is in the retracted position.

[0110] Auxiliary bolt 410 comprises a locking structure, in the form of tab 422, which engages a complementary structure, in the form of lip 424, on slide 406 when auxiliary bolt 410 is in the extended position (e.g., in the door open state) and slide 406 is in the actuated position (and thus bolt 111 A is in the retracted position). That is, on opening a door, a user first actuates handles 105 or 107, which causes driver 408 to push slide 406 to its actuated position which in turn retracts bolt 111 A. The user then moves the door into the open position, as illustrated in Figure 8, which disengages auxiliary bolt 410 from strike plate 600 and causes auxiliary bolt 410 to move to its extended position due to spring bias provided by compression spring 412. On movement of auxiliary bolt 410 into its extended position, tab 422 engages lip 424 to hold slide 406 in the actuated position, and thus hold retractable bolt 111 A in the retracted position. Depression of auxiliary bolt 410, such as on door closure, disengages tab 422 from lip 424 and slide 406 returns to its rest position with retractable bolt 111 A returning to its extended position due to torsion spring 404.

[0111] An advantage of the arrangement described above is that bolt 111A is released and moved to the extended position on door closure independently of any other lock assembly in the multipoint lock assembly. That is, movement of bolt 111 A to the extended position in remote lock assembly 110A is not controlled by, nor is it dependent on, the operation of central lock assembly 108 or remote lock assembly 110B. Thus, if for example, bolt 11 IB of remote lock assembly 110B does not extend on door closure (such as due to misalignment of the bolt with a corresponding strike plate), then this does not prevent bolt 111 A from moving to the extended position nor does this cause jamming of central lock assembly 108 or remote lock assembly 110A.

[0112] Another advantage of this arrangement is that a user is not separately required to actuate remote lock assemblies 110A or 110B to extend bolts 111 A and 11 IB since these automatically extend on door closure. This simplifies operation of the multipoint lock system, since remote locks 110A and 110B are only actuatable by a user to retract bolts 111 A and 11 IB in a single action to retract bolt 109 of central lock assembly 108.

[0113] A further advantage is that the remote bolts 111A and 11 IB extend automatically upon closure of door (since auxiliary bolt 410 is pushed to the retracted position where it is disengaged from retractable bolts 111 A and 11 IB permitting bolts 111 A and 11 IB to be moved to the extended position under spring bias). Physical means (e.g., by rotating lever upwards or by rotating a snib or lever) or electronic means (e.g., by driving the remote bolts by a motor) are not required to extend bolts 111A and 11 IB. Using physical means can result in the user forgetting to extend the remote bolts. Using electronic means requires large motors and / or gearboxes and larger batteries.

[0114] The operation of the remote lock assembly 110A (and thus remote lock assembly 110B) will be explained in more detail below with reference to Figures 9 to 12.

[0115] Figure 9 illustrates retractable lock assembly 110A (or 110B) in the door closed state. In this state, retractable bolt 111 A is in the extended position and is, for example, engaged with strike plate 600 via recess 602 (not shown). Slide 406 is in its rest position with drive boss 414 located within the straight portion of channel 416. With this arrangement, retractable bolt 111A is deadlatched and cannot be pushed inward via an external force to a projecting portion of retractable bolt 111 A since motion of retractable bolt is prevented by abutment of a wall of the straight portion of channel 416 against drive boss 414. Auxiliary bolt 410 is depressed into its retracted position and is disengaged from slide 406 and retractable bolt 111 A. Driver 408 is in its neutral position, with shoulder 418 of slide 406 resting above drive surface 420 of driver 408.

[0116] Figure 10 illustrates retractable lock assembly 110A (or 110B) in the door closed state but on initial user actuation of handle 105 or 107. Initial actuation of handles 105 or 107 by a user causes movement of driver 408 (via drive rod 112) towards its drive position. Movement of driver 408 causes drive surface 420 to push against shoulder 418 of slide 406 to move slide 406 partially towards its actuated position, and, thus movement of drive boss 414 within channel 416 until drive boss 414 contacts a wall portion of channel 416. In the position shown in Figure 10, retractable bolt 111 A remains unmoved in the extended position, and is no longer deadlatched

[0117] Figure 11 illustrates retractable lock assembly 110A (or 110B) in the door open state with handles 105 or 107 fully actuated. In the fully actuated state, driver 408 is in its driven position with drive surface 420 pushing slide 406 to its actuated position via shoulder 418. Movement of slide 408 to the actuated position causes retraction or retractable bolt 111 A due toupward movement of drive boss 414 against curved wall of channel 416 which causes retractable bolt 111A to pivot into its retracted position about pin 403. Auxiliary bolt 410 is free of strike plate 600 (not shown), and as such, compression spring 412 reverts to an uncompressed state pushing auxiliary bolt 410 to its extended position. Movement of auxiliary bolt 410 to its extended position causes tab 422 to contact lip 424 of slide 406 to hold slide 406 in its actuated position.

[0118] Figure 12 illustrates retractable lock assembly 110A (or 110B) in the door open state after a user has released handles 105 or 107, and handles 105 or 107 have reverted to their neutral position. In this state, driver 408 has been returned to its neutral position by drive rod 112. In moving to the neutral position, drive surface 420 of driver 408 disengages and separates from shoulder 418 of slide 408. Slide 408 is held in the actuated position via auxiliary bolt 410 as discussed above in relation to Figure 11, and retractable bolt 111 A is likewise held in the retracted position. Depression of auxiliary bolt 410, such as by closing the door, disengages tab 422 of auxiliary bolt 410 from lip 424 of slide 406, and slide 406 returns to its rest position with retractable bolt 111 A returning to its extended position due to torsion spring 404 as illustrated in Figure 9.

[0119] Figure 13 and Figure 14 are exploded perspective views of an embodiment of a central lock assembly which may be used with remote lock assemblies of the invention, such as remote lock assemblies 110A and HOB.

[0120] Lock assembly 108 comprises a cartridge housing formed from a cartridge body 1300 and cover plate 1302 which are affixed together via screws. The cartridge housing contains retractable bolt 109, spindle cam 1304, an actuator in the form of slide 1306 and driven arm 1308, auxiliary bolt 1310, a latch locking mechanism in the form of a pivot locking arm 1312, and torsion springs 1314 and 1316. In this embodiment, the cartridge housing also contains a motor module 1318 having a motor 1319, an electronic door position sensor 1320 in communication with motor module 1318, a motor driven locking member in the form of a locking slide 1322, and a manually actuated lock slide override arm 1324.

[0121] Retractable bolt 109 is rotatable about a central mount 1326 between an extended position in which an end portion in the form of hook 1328 extends outside the cartridge housing to engage with a recess on a strike plate or the like (not shown) and a retracted position in whichretractable bolt 109 is substantially housed within the cartridge housing. Retractable bolt 109 is spring biased via torsion spring 1314 into the extended position.

[0122] As generally discussed above, retractable bolt 109 can be retracted by a user on rotation of handles 105 and 107 which are engaged with spindle cam 1304 via spindle 122. Spindle 122 is engaged in fixed relation with spindle cam 1304 via a spindle passage 1330 such that actuation of handles 105 and 107 from their rest position also rotates spindle cam 1304 via spindle 122. In this embodiment, actuation of handles 105 or 107 causes rotation of spindle cam 1304 in a direction such that spindle cam 1304 rotates toward the first side of lock assembly 108.

[0123] Spindle cam 1304 includes arm 1332 with a drive tab 1334. Drive tab 1334 is seated within upper portion of slot 1336 of slide 1306 such that on rotation of spindle cam 1304 drive tab 1334 slides within slot 1336 from the upper portion thereof into the lower portion thereof. This in turn causes slide 1306 to move longitudinally from its rest position to an actuated position in a direction toward retractable bolt 109.

[0124] Rotation of spindle cam 1304, causes surface 1304A of spindle cam 1304 to contact surface 13O8A of driven arm 1308. This causes driven arm 1308 to rotate toward the first side of lock assembly 108. Driven arm 1308 is engaged with retractable bolt 109 via a boss 13O8B which engages within notch 1338 of retractable bolt 109. This causes retractable bolt 109 to be moved from the extended position into the retracted position, such that hook portion 1328 is substantially withdrawn within the cartridge housing. This is best illustrated in Figure 15 and Figure 16 which provide perspective views of the retractable bolt 109 in the extended position and retracted position respectively. Also shown is torsion spring 1314 which is shown in an expanded state in Figure 15 when retractable bolt 109 is extended, and a compressed state in Figure 16 when retractable bolt 109 is retracted. In either case, torsion spring 1314 applies a biasing force to move or maintain retractable bolt 109 in the extended position. Consequently, after actuation, and if auxiliary bolt 1310 is depressed (e.g. by strike plate) such that retractable bolt 109 is free to move, when a user then releases handle 105 or 107, torsion spring 1314 returns retractable bolt 109 to the extended position. Slide 1306 is returned to its rest position by handles 105 and / or 107 being sprung to their rest position (e.g., in this embodiment their horizontal orientation as shown in Figure 1). In this embodiment, handle springing occurs due to spring bias housed in door handle furniture 104 and / or 106. Spindle 122 is engaged withhandles 105 and 107 such that when handles 105 and 107 are at rest (e.g., in the horizontal orientation as shown in Figure 1, spindle cam 1304 is likewise in its rest position, and therefore slide 1306 is also in its rest position due to engagement of slot 1336 with drive tab 1334.

[0125] Figure 15 and Figure 16 also more clearly illustrate the arrangement of components within lock assembly 108. In particular, spindle cam 1304 is offset from the central axis of the lock and is located adjacent the second side of central lock assembly 108 opposite the first side. An advantage of offsetting spindle cam 1304 to be adjacent to the second side of lock assembly 108, is that it allows for lateral widening and / or thickening of door handle furniture 104 (e.g. in the horizontal x or z directions, with the y direction being the vertical length) to accommodate batteries and electronics in door handle furniture 104 and / or 106, without door handle furniture 104 and / or 106 contacting the doorjamb when the door is opened / closed. To the inventor’s knowledge, offsetting spindle cam 1304 so that it is greater than 25mm from a door engagement surface of door mount tabs 113 A and 113B has not been done previously in this type of security door lock application. In this embodiment, the offset is 28.5 mm, this means that when lock assembly 108 is located within a door, spindle cam 1304 is not located centrally within lateral openings 120A and 120B in the door which means that wider door handle furniture 104 and 106 can be used. Due to the location of spindle cam 1304 within lock assembly 108, spindle cam 1304 is only rotatable in one direction from its rest position where arm 1332 rests adjacent the second side to its actuated position. The range of motion of spindle cam 1304 is delimited between the rest position and actuated position. This is a departure from lock assemblies that form the central lock assembly of a multi-point lock assembly where the bolts in the remote lock assemblies are extended by handle operation. In such multipoint lock system, an actuator of a central lock assembly is generally rotatable in a first direction to retract retractable bolts of each of the central lock assembly and the multipoint lock assemblies e.g., which is the same as in lock assembly 108 when operatively connected to multipoint lock assemblies 110A and HOB. However, in some central lock assemblies the actuator is also rotatable from its rest position in a second direction opposite to the first direction to move the retractable bolts of the multipoint lock assemblies to the extended position. This is not possible with the present design since spindle cam 1304 can only be rotated in one direction from its rest position. Thus, remote lock assemblies 110A and 110B are actuatable by a user in only a single direction to retract bolts 111A and 11 IB, with bolts 111A and 11 IB extending automatically on door closure.

[0126] In Figure 15, lock assembly 108 is shown in the closed door state with slide 1306 and spindle cam 1304 in the rest position, retractable bolt 109 in the extended position, and auxiliary bolt 1310 in the retracted or depressed position. With auxiliary bolt 1310 in the retracted position, pivot locking arm 1312 is held above and out of contact with retractable bolt 109. Retractable bolt 109 also includes a detent 1500 which abuts against an internal wall of the lock assembly 108.

[0127] In Figure 16, lock assembly 108 is shown in the open door state with slide 1306 and spindle cam 1304 in the rest position, retractable bolt 109 in the retracted position, and auxiliary bolt 1310 in the extended position. With auxiliary bolt 1310 in the extended position, pivot locking arm 1312 holds retractable bolt 109 in the retracted position via abutment with detent 1500 on retractable bolt 109.

[0128] Figure 17 is a perspective view of the rear of lock assembly 108 showing that drive rod 112 engages with a second side of central lock assembly 108 opposite the first side via an engagement pin 1700 which is received into bore 1702 in slide 1306. Thus, actuation of slide 1306 between its rest position and actuated position, for example when a user actuates handle 105 or 107, also causes linear translation of drive rod 112 to retract retractable bolts 111 A and 11 IB. On release of handle 105 or 107 by a user, slide 1306 returns to its rest position, and hence drive rod 112 likewise returns to its initial position. As discussed previously, slide 1306 is returned to its rest position by handles 105 and / or 107 being sprung to their rest position.

[0129] Auxiliary bolt 1310 is located on the first side of lock assembly 108 and is spring biased to the extended position by torsion spring 1316. The purpose of auxiliary bolt 1310 is to retain retractable bolt 109 in the retracted position when a door in which lock assembly 108 is installed is in the open position. To achieve this, auxiliary bolt 1310 cooperates with a latch locking mechanism to hold retractable bolt 109 in the retracted position when auxiliary bolt 1310 is in the extended position and to permit movement of retractable bolt 109 when auxiliary bolt 1310 is in the retracted position. Auxiliary bolt 1310 is shaped such that on closure of a door, auxiliary bolt 1310 contacts a surface of a strike plate (not illustrated) which causes auxiliary bolt 1310 to be depressed into a retracted position and which provides a physical barrier against the spring bias of torsion spring 1316. However, on opening the door lock assembly 108 is moved away from the strike plate, and thus there is no longer a physical barrier which worksagainst the spring bias provided by torsion spring 1316, and as such, auxiliary bolt 1310 returns to its extended position.

[0130] In this particular embodiment, the bolt locking mechanism is in the form of pivot locking arm 1312. When auxiliary bolt 1310 is depressed in its retracted position, auxiliary bolt 1310 pushes locking arm 1312 to a position in which it is disengaged or otherwise separated from retractable bolt 109. In this arrangement, locking arm 1312 does not prevent movement of retractable bolt 109 from the retracted position to the extended position. In contrast, when auxiliary bolt 1310 is extended, locking arm 1312 is configured to engage detent 1500 on retractable bolt 109 which holds retractable bolt 109 in the retracted position. To release retractable bolt 109 from being locked in the retracted position by locking arm 1312, auxiliary bolt 1310 must first be depressed (e.g., which occurs on closure of a door). The effect of this arrangement is that when the door is in an open position retractable bolt 109 is retained in the retracted position and, when the door is in the closed position retractable bolt 109 is able to move from the retracted position to the extended position.

[0131] Cartridge body 1300 also includes motor module 1318 with a motor therein. Motor module 1318 is operatively connected to locking slide 1322 to move locking slide 1322 between a first position and a second position. In the first position, locking slide 1322 does not prevent retractable bolt 109 from being moved from the extended position to the retracted position. However, in the second position, locking slide 1322 prevents retractable bolt 109 from being moved from the extended position to the retracted position. That is, locking slide 1322 effectively acts to lock retractable bolt 109 in the extended position. In this particular embodiment, locking slide 1322 includes a tip 2000 which, when in the second position, fits within a notch 1338 (best shown in Figure 14) in retractable bolt 109 to physically prevent retractable bolt 109 from being moved from the extended position into the retracted position. The skilled person will appreciate that whilst this particular embodiment illustrates direct engagement between locking slide 1322 and retractable bolt 109, locking slide 1322 may act indirectly on retractable bolt 109 to lock retractable bolt 109 in the extended position.

[0132] Lock assembly 108 may be configured such that motor in motor module 1318 automatically drives locking slide 1322 from the first position to the second position on detection that the door is closed and / or that the retractable bolt 109 is in the extended position. However, in other embodiments, the motor in motor module 1318 does not automatically drivelocking slide 1322 on detection that the door is closed and / or the retractable bolt 109 is in the extended position. To achieve this, cartridge body 1300 can include one or more position sensors. In this embodiment, cartridge body 1300 includes a door sensor 1320 which is in electrical communication with motor module 1318. Door sensor 1320 is operatively coupled with locking arm 1312 to detect whether locking arm 1312 is engaged or disengaged from retractable bolt 109. Sensing can be via a contact switch or a switch that senses a magnet on locking arm 1312 or by other methods generally known to those skilled in the art. As discussed above, locking arm 1312 is disengaged from retractable bolt 109 when auxiliary bolt 1310 is depressed and retractable bolt 109 is extended which is representative of a ‘door closed’ position, and locking arm 1312 is engaged with retractable bolt 109 when auxiliary bolt 1310 is extended and retractable bolt 109 is retracted which is representative of a ‘door open’ position. An additional sensor may be present to determine the position of locking slide 1322 and whether this is disengaged from or engaged with retractable bolt 109.

[0133] Door sensor 1320 can also be used to inform a user as to whether the door is in the open or closed position. This is so that a user does not think a door is locked when retractable bolt 109 is extended but the door is open.

[0134] To remove the locking of the bolt, a user must provide some form of user credentials, whether in the form of a user entered code, coded keycard, interior button on door handle furniture 104 or the like. On input of an appropriate keycode or detection of a correctly coded key card, motor in motor module 1318 moves locking slide 1322 from the second position to the first position which permits a user to operate handle 105 or 107 to retract retractable bolt 109 and thereby open the door.

[0135] It is also desirable to include a manual override to remove the deadlock by moving locking slide 1322 from the second position to the first position. This is useful in instances where there is an interruption in the power supply to motor module 1318. To facilitate this, cover plate 1302 comprises an override opening 1340 for receiving, for example an override pin driven by an external key cylinder. Override pin extends through override opening 1340 in cover plate 1302 and is configured to be engage with lock slide override arm 1324. As best illustrated in Figure 15 and Figure 16, lock slide override arm 1324 comprises a first arm 1502 on a first side of pivotal mount 1506 and a second arm 1504 on a second side of pivotal mount 1506. First arm 1502 is positioned adjacent override opening 1340 and second arm 1504 is positionadjacent to a nub 442 on locking slide 1322. When the manual override is actuated by a user, for example via a rotary key cylinder acting on first arm 1502, the lock slide override arm 1324 pivots such that second arm 1504 pushes against locking slide 1322 to move locking slide 1322 from its second position to its first position where it is disengaged from retractable bolt 109. A user can then actuate handles 105 or 107 to retract retractable bolt 109. On release of the manual override, e.g. by removal of a key from the rotary key cylinder, the lock slide override arm 1324 returns to its rest position under spring bias provided by a spring in motor module 1318. Torsion spring 442 keeps lock slide override arm 1324 off locking slide 1322 so the weight of lock slide override arm 1324 is not added to the weight that needs to be driven by motor module 1318 which would increase the power requirements of the motor in motor module 1318.

[0136] As shown in Figure 15 and Figure 16, first arm 1502 is shorter than second arm 1504, and given this, a small displacement of first arm 1502, such as by a rotary key cylinder or the like, results in a relatively larger displacement of second arm 1504.

[0137] In some embodiments, motor in motor module 1318 is configured to automatically move locking slide 1322 from the first position to the second position on detection that the door has been placed into a ‘door closed’ position. Lock system 100 may include an electronically actuated snib or the like on an internal door handle which is pressable by a user to move locking slide from the second position to the first position to allow retractable bolt 109 to then be retracted by actuation of the internal door handle. In this way, the lock system may be operated in a ‘privacy mode’.

[0138] The operation of the lock will be explained in more detail below with reference to Figures 18 to 24.

[0139] Figure 18 is an internal view of lock assembly 108 showing the arrangement of components when lock assembly 108 is an unlocked operating state with retractable bolt 109 in the extended position, e.g., lock assembly 108 is in passage mode and installed on a door in the closed position. Spindle cam 1304 is in the rest position with arm 1332 generally oriented vertically adjacent to a wall portion of lock assembly 108 defining the second side of the lock assembly. The rest position of spindle cam 1304 corresponds to door handle 105 and 107 being in the neutral position, e.g., unactuated by a user. The arrangement of the spindle cam 1304 and arm 1332 provides a physical barrier which prevents rotation of spindle cam in a directiontoward the second side. Arm 1332 comprises drive tab 1334 at an end thereof which is located in an upper portion of slot 1336 of slide 1306 which is also in the rest position.

[0140] In the door closed position, auxiliary bolt 1310 is in the depressed position in which pivot locking arm 1312 is pushed by auxiliary bolt 1310 to a position where it is disengaged from retractable bolt 109. Door position sensor 1320 is arranged to detect the position of locking arm 1312 and communicate this with motor module 1318 or communicate to user via app or similar.

[0141] Door position sensor 1320 communicates with motor module 1318 via, for example, wiring retained in a recess located within the cartridge housing and extending adjacent a second side of the cartridge housing opposite the first side. The benefit of this arrangement is that the wiring extends out of the housing of lock assembly 108 from a single location as opposed to multiple locations e.g., the wire loom for the sensor 1320 extending out a top area of the housing of lock assembly 108 and wire loom for motor module 1318 extending out of a bottom area of the housing of lock assembly 108.

[0142] Further by routing the wiring from the sensor into motor module 1318 and having a single wire loom extending out of a bottom area of the housing of lock assembly 108, an installer only needs to connect one wiring loom / plug from the lock assembly to external furniture such as an escutcheon during installation. In contrast, if two separate wire looms were used then this would require one loom plug for the sensor and a separate loom plug for the motor module. This causes installation to be more cumbersome and increases the likelihood of damaging wires during installation. Still further, if sensor wiring extended out from the top of lock assembly 108, then it would be close to lateral opening 120A in door frame 102. These cutouts can be sharp and can easily damage wires.

[0143] Another advantage is that by running the wiring along the second side of lock assembly 108, this allows for wire routing without taking up valuable space within the housing of lock assembly 108 or without having to increase the size of the housing (such as depth, length, or thickness) to accommodate that wiring. Increasing the size of the housing of lock assembly 108 would mean that the lock assembly 108 could not be fitted to doors having small / narrow frames.

[0144] Locking slide 1322 is shown in the first position where it is disengaged from retractable bolt 109. In this position, a user is able to operate handles 105 or 107 to retract retractable bolt 109.

[0145] Figure 19 is an internal view of lock assembly 108 showing the arrangement of components when a user actuates spindle cam 1304 via handles 105 or 107 from the unlocked operating state of Figure 18 to retract retractable bolt 109 in a door open position.

[0146] In this position, spindle cam 1304 is rotated over its full range of motion from its rest position to its actuated position. The rotational motion of spindle cam 1304 causes drive shoulder 1304A to act on surface 1308 A of driven arm 1308 to rotationally move driven arm 1308 toward the first side of lock assembly 108. Movement of driven arm 1308 then causes retraction of bolt 109 via engagement between boss 13O8B on driven arm with slot 109A in bolt 109.

[0147] The rotational motion of arm 1332 also moves slide 1306 linearly upward via movement of drive tab 1334 from upper portion of slot 1336 to lower portion of slot 1336. Movement of slide 1306 causes corresponding movement of drive rod 112 to actuate remote latches 110A and 110B in the manner described previously.

[0148] On opening the door, auxiliary bolt 1310 is sprung outward under spring bias provided by torsion spring 1316 which causes pivot locking arm 1312 to drop into engagement with upper surface of retractable bolt 109. Door position sensor 1320 detects the presence of pivot locking arm 1312 in the engaged position and communicates this to motor module 1318 and / or communicate to user via app or similar.

[0149] Figure 20 is an internal view of lock assembly 108 showing the arrangement of components after a user has released handles 105 or 107 after actuating lock assembly 108 to open the door as shown in Figure 19 and handles 105 or 107 return to the neutral position.

[0150] After release of handles 105 or 107, retractable bolt 109 is urged toward the extended position under spring bias provided by torsion spring 1314. However, retractable bolt 109 is prevented from moving into the extended position due to abutment between pivot locking arm 1312 and detent 1500 on retractable bolt 109.

[0151] Slide 1306 is returned to its rest position from its actuated position by handles 105 and / or 107 being sprung to their rest position. Movement of slide 1306 is delimited by its rest and actuated positions. Movement of slide 1306 to its rest position likewise returns drive rod 112 to its neutral position, which in turn, causes driver 408 to move from its driven position to its neutral position. On moving to its rest position, driver 408 disengages from slide 406 with slide 406 being retained in its actuated position due to engagement with auxiliary bolt 410, and as such, bolts 111 A / 11 IB of remote latches 110A / 110B are held in their retracted positions.

[0152] On closure of the door, auxiliary bolt 1310 comes into contact with a strike plate or the like on an opposing door frame which causes auxiliary bolt 1310 to be pressed inward. The inward movement of auxiliary bolt 1310 lifts pivot locking arm 1312 away from retractable bolt 109. Retractable bolt 109 is then sprung to the extended position under spring bias of torsion spring 1314. Pivot locking arm 1312 is moved from door position sensor 1320 which relays to motor module 1318 or electronics that the lock is in a door close state as generally illustrated in Figure 18.

[0153] Similarly, auxiliary bolt 410 contacts corresponding strike plate 600 which causes auxiliary bolt to disengage from slide 406, and slide 406 moves to its rest position with bolt 111 A / 11 IB returning to its extended position due to spring bias of torsion spring 404.

[0154] Figure 21 is an internal view of lock assembly 108 showing the arrangement of components when lock assembly 108 is in a locked operating state with retractable bolt 109 in the extended position and locking slide 1322 is in the second position whereby retractable bolt 109 is locked in the extended position, e.g., lock assembly 108 is in a privacy or deadlocked mode and the door is in the closed position.

[0155] As can be seen, the general arrangement of lock components is similar to that illustrated in Figure 18. However, in Figure 21, motor 1319 in motor module 1318 has driven locking slide from the first position to the second position. In the first position, illustrated in Figure 18, locking slide 1322 does not prevent retractable bolt 109 from being moved from the extended position to the retracted position. In the second position, illustrated in Figure 21, locking slide 1322 prevents retractable bolt 109 from being moved from the extended position to the retracted position. In particular, locking slide 1322 includes tip 2000 which is received in notch 1338 inretractable bolt 109 which provides a physical barrier to movement of retractable bolt 109 from the extended position to the retracted position.

[0156] Motor 1319 in motor module 1318 may be configured to automatically move locking slide 1322 from the first position to the second position on detection by door position sensor 1320 of a closed door state (e.g., when pivot locking arm 1312 is disengaged from retractable bolt 109). In this way, lock assembly 108 automatically locks on closure of a door.

[0157] Figure 22 is an internal view of lock assembly 108 with the retractable bolt 109 in the extended position and locked by locking slide 1322. In this state, spindle cam 1304 can be partially rotated which permits some movement of retractable bolt 109 toward the retracted state. However, the engagement between locking slide 1322 and retractable bolt 109 prevents linear movement of slide 1306 which delimits movement of spindle cam 1304. In more detail, spindle cam 1304 comprises drive tab 1334 which is located within slot 1336 of slide 1306. On rotation of spindle cam 1304, drive tab 1334 is moveable within slot 1336 which causes slide 1306 to linearly move its rest position to its actuated position. However, when locking slide 1322 is engaged with retractable bolt 109, slide 1306 is locked in its rest position. Slot 1336 has a first portion 1336A and a second portion 1336B. Movement of drive tab 1334 within first portion 1336A of slot 1336 does not cause linear movement of slide 1306. Linear movement of slide 1306 is caused by movement of drive tab 1334 within second portion 1336B of slot 1336. Thus, when locked, partial rotation of spindle cam 1304 is possible (e.g., by a user actuating a door handle to take up clearances between bolt notch 1338 and tip 2000 of locking slide 1322) which results in drive tab 1334 moving within first portion 1336A of slot 1336. This movement results in partial retraction of retractable bolt 109. However, movement of drive tab 1334 through second portion 1336B of slot 1336 is not possible. This is because locking slide 1322 prevents further retraction of retractable bolt 109 and thus locks movement of drive tab 1334 from the second portion 1336B of slide 1336 due to the interaction between drive shoulder 1304A on spindle cam 1304 and surface 13O8A of driven arm 1308, which in turn, is engaged with retractable bolt 109 via boss 13O8B on driven arm 1308 and slot 109A in retractable bolt 109. Thus, due to the initial profile of slot 1336, slide 1306 cannot move while retractable bolt 109 is locked by locking slide 1322. This is important as it ensures there is no driving / movement of drive rod 112 when lock assembly 108 is locked, and thus no actuation of remote lock assemblies 110A and HOB when in this state. If movement of slide 1306 was possible, then remote lock assemblies 110A and 110B could be moved into the non-deadlatched positionor partially retracted position whilst locking slide 1322 is in the second position (i.e., the locked position).

[0158] Figure 23 is an internal view of lock assembly 108 showing the arrangement of components when the manually actuated lock slide override arm 1324 is actuated.

[0159] Starting from the arrangement depicted in Figure 21 where lock assembly 108 is in the deadlocked state, the deadlock may be overridden by actuation of lock slide override arm 1324. The override may be in the form of a rotary key cylinder which may be, for example, located in the handle or escutcheon on the exterior and / or interior facing surface of the door. In any case, the manual override includes a pin 2300 which projects into the interior of the cartridge housing through opening 1340 in cover plate 1302. Actuation of the manual override causes lateral movement of the pin to actuate lock slide override arm 1324 from the position shown in Figure 21 to the position shown in Figure 23. As can be seen, lock slide override arm 1324 is pivoted into contact with locking slide 1322 to move locking slide 1322 from the second position to the first position where it is disengaged from retractable bolt 109 and no longer provides a physical barrier which prevents movement of retractable bolt 109 from the extended position to the retracted position.

[0160] Figure 24 follows from Figure 23 and shows that a user is able to actuate spindle cam 1304 via handles 105 or 107 to move the door into the open position whilst the override is active. Removal of the override, e.g. by withdrawing a key from a rotary key cylinder results in lock slide override arm 1324 being pivoted back to its disengaged position (as illustrated in Figure 10) due to spring within motor module 1318.

[0161] Figures 25 to 30 illustrate the functioning of central lock assembly 108 as part of a multipoint lock system with upper and lower remote lock assemblies 110A and 110B.

[0162] Figure 25 illustrates lock assembly 108 in the same state as Figure 18, that is, lock assembly 108 is in an unlocked door closed state with retractable bolt 109 in the extended position. In the door closed state, retractable bolts 111 A and 11 IB on upper and lower remote lock assemblies 110A and 110B are likewise in the extended position as illustrated in Figure 9.

[0163] Each of the upper and lower remote lock assemblies 110A and 110B include auxiliary bolt 410 respectively which operates in a similar manner to auxiliary bolt 1310 in respect of lockassembly 108. That is, the auxiliary bolt 410 cooperates with a latch locking mechanism that is operatively disengaged from retractable bolts 111A and 11 IB when in the extended state (e.g., corresponding to a door closed position) and operatively engaged with retractable bolts 111 A and 11 IB when in the retracted state (e.g., corresponding to a door open position) to hold retractable bolts 111 A and 11 IB in the retracted state until the door is closed and auxiliary bolt 410 is depressed.

[0164] In Figure 25, lock assembly 108 is in an unlocked door closed state, and as such, auxiliary bolt 410 is depressed.

[0165] Figure 26 illustrates lock assembly 108 in the same state as Figure 19, and remote lock assemblies 110A and 110B in the same state as illustrated in Figure 11. That is, a user has actuated handle 105 or 107 to retract retractable bolt 109. As generally described in relation to Figure 19, actuation of handle 105 or 107 causes spindle cam 1304 to be rotated over its full range of motion from its rest position to its actuated position. The rotational motion of arm 1332 of spindle cam 1304 moves slide 1306 linearly upward via movement of drive tab 1334 from upper portion of slot 1336 to lower portion of slot 1336.

[0166] Slide 1306 includes coupling structure in the form of bore 1702 (shown in dashed lines denoting that coupling structure 1702 is hidden from view) for fixed coupling with drive rod 112. In particular, drive rod 112 has an engagement pin 1700 which fits into bore 1702 such that drive rod 112 and slide 1306 are rigidly fixed relative to each other. Given this rigidly fixed relationship, translation of slide 1306 between the rest and actuated positions likewise causes translation of drive rod 112 between a rest and an actuated position thereof. Thus, actuation of slide 1306 between its rest position and actuated position, for example on user actuation of handle 105 or 107, causes linear translation of drive rod 112 to retract retractable bolts 111 A and 11 IB as illustrated in Figure 11.

[0167] Figure 27 illustrates lock assembly 108 in the state as Figure 20, and remote lock assemblies 110A and 110B in the same state as illustrated in Figure 12. That is, the user has actuated handle 105 or 107 to retract retractable bolt 109 and open the door, and the user has subsequently released handle 105 or 107 to allow handles 105 and 107 to return to their neutral position. In Figure 27, slide 1306 has returned to its rest position and as such, drive rod 112 has likewise moved to its rest position. However, movement of drive rod 112 from its actuatedposition to its neutral position does not cause extension of retractable bolts 111A and 11 IB. Retractable bolts 111 A and 11 IB remain locked in the retracted state by the latch locking mechanism.

[0168] As described previously, movement of drive rod 112 to its neutral position causes drivers 408 (in remote lock 110A) and 408’ (in remote lock HOB) to move from their driven position to its neutral position. On moving to its rest position, driver 408 disengages from slide 406 with slide 406 being retained in its actuated position due to engagement with auxiliary bolt 410 (the same occurring for driver 408’ in respect of remote lock assembly HOB), and as such, bolts 111 A / 11 IB of remote latches 110A / 110B are held in their retracted positions as illustrated in Figure 12 and Figure 27.

[0169] Figure 28 illustrates lock assembly 108 in the same state as Figure 18, and remote lock assemblies 110A and HOB in the same state as illustrated in Figure 9. That is, locking slide 1322 is in the second position engaged with retractable bolt 109 to lock retractable bolt 109 in place. As a result of this arrangement, slide 1306 cannot be moved from its rest position to the actuated position, and consequently, retractable bolts 111 A and 11 IB are likewise locked in the extended position as illustrated in Figure 9. That is, locking lock assembly 108 with slide 1322 also locks remote lock assemblies 110A and 110B.

[0170] Figure 29 illustrates lock assembly 108 in the same state as Figure 22, and remote lock assemblies 110A and HOB in the same state as illustrated in Figure 9. That is, locking slide 1322 is in the second position engaged with retractable bolt 109 to lock retractable bolt 109 in place. In Figure 29, a user has actuated a door handle which has caused partial rotation of spindle cam 1304 and thus movement of drive tab 1334 within the first portion 1336A of slot 1336 of slide 1306. This movement of spindle cam 1304 also causes partial retraction of retractable bolt 109. However, as discussed previously, locking slide 1322 prevents full retraction of retractable bolt 109 and thus also locks spindle cam 1304 from further rotational movement. Given this, drive tab 1334 cannot move into second portion 1336B of slide 1306, and consequently slide 1306 is locked from linear movement from its rest position. Since slide 1306 cannot be moved, actuation of spindle cam 1304 does not cause movement of drive rod 112, and thus remote lock assemblies 110A and 110B cannot be actuated, and thus, remain in the deadlatched lock state illustrated in Figure 9.

[0171] Figure 30 is similar to Figure 9 and Figure 25 with the overall multipoint lock system in an unlocked door closed state. However, in the case of Figure 30, retractable bolt 11 IB has failed to align correctly with a recess in the corresponding strike plate, and as such, has been unable to move into the extended position. No such misalignment has occurred with bolts 109 and 111 A, and each of these have moved to the extended position on door closure as discussed in relation to Figure 9 and Figure 25.

[0172] Figure 30 highlights a benefit of the invention in that the decoupling / disengagement of driver 408 from slide 406 when slide 406 is in the actuated position means that each of remote lock assemblies 110A and 110B is able to operated such that the bolt 111 A or 11 IB can be moved to the engaged position independently. That is, movement of slide 406 in each of remote lock body 110A is independent of movement of the slide in remote lock body 110B, and thus bolts 111 A and 11 IB likewise are independent of one another. This contrast with prior art remote lock bodies where the bolts in each of the remote lock bodies are in fixed relation, such that either both are retracted together or both are extended together. Given this, in the case where there is misalignment and one remote bolt is unable to extend, then this likewise prevents the other remote bolt from extending. This is particularly problematic for an electronic lock where the remote bolts are not mechanically operated.

[0173] Figures 31 to 36 illustrate another embodiment of a central lock assembly 3100 which can be used with remote lock assemblies 110A and 110B.

[0174] Figure 31 and Figure 32 are exploded perspective views of a central lock assembly 3100 from first and second sides thereof.

[0175] Lock assembly 3100 comprises a cartridge housing formed from a cartridge body 3102 and cover plate 3104 which are affixed together via screws. The cartridge housing contains retractable bolt 3108, spindle cam 3110, an actuator in the form of slide 3112 and driven arm 3114, auxiliary bolt 3116, a latch locking mechanism in the form of a pivot locking arm 3118, and torsion springs 3120 and 3122. This embodiment differs in that it does not contain a motor or motor driven locking slide within the cartridge body. Instead, this embodiment includes deadlatching slide 3124 which is spring driven via compression spring 3126, and slide override arm 3128. Slide override arm 3128 includes a first finger 3130 engaged with a shoulder 3112A on slide 3112 and a second finger 3132 engaged with a shoulder in recess 3124A ofdeadlatching slide 3124. Slide override arm 3128 is pivotally mounted to pin 3134 and is fixedly retained by actuator 3112 and deadlatching slide 3124. Lock assembly 3100 also includes door position sensor 3136 which may for example, be in electrical communication with a motor located outside the cartridge body such as within an escutcheon. In such cases, the motors may clutch the handles to allow or disallow rotation of spindle cam 3110 via the handles.

[0176] Lock assembly 3100 can be interfaced with remote lock assemblies 110A and HOB via a drive rod 3136 which fixedly attaches to slide 3112 via connection between a pin 3138 on drive rod 3136 which is received in a bore 3140 of slide 3112. In this way, when slide 3112 is translated, drive rod 3132 is also translated, thus actuating bolts 111 A and 11 IB on remote lock assemblies 110A and HOB via driver 408 as described previously.

[0177] Lock assembly 3100 may be installed into the cavity of a door frame in a similar manner to lock assembly 108, and affixed to the door via screw by door mount tabs 3042A and 3042B.

[0178] Figure 33 is an internal view of lock assembly 3100 showing the arrangement of components when lock assembly 3100 is in a deadlatched operating state with retractable bolt 3108 in the extended position. Spindle cam 3110 is in the rest position corresponds to door handles being in a neutral position, e.g., unactuated by a user. Spindle cam 3110 includes an arm 3300 with drive tab 3302 at an end thereof which is located in an upper portion of a slot 3304 of slide 3112 which is also in the rest position.

[0179] In the door closed position, auxiliary bolt 3116 is in the depressed position in which pivot locking arm 3118 is pushed by auxiliary bolt 3116 to a position where it is disengaged from retractable bolt 3108. Door position sensor 3136 is arranged to detect the position of pivot locking arm 3118 and communicate this with a motor or electronics (not illustrated, but which may be located within an escutcheon rather than within the cartridge body). In embodiments including a motor, the motor may directly clutch the handles to allow or disallow rotation of spindle cam 3110 via the handles.

[0180] Deadlatching slide 3124 has a first position and a second position. In the first position, deadlatching slide 3124 is disengaged from retractable bolt 3108 such that deadlatching slide 3124 does not prevent retractable bolt 3108 from being externally moved (e.g., by pushing the external end of the bolt in the extended state which protrudes from the cartridge housing) from the extended position to a retracted position. In the second position, as shown in Figure 33,deadlatching slide 3124 is engaged with retractable bolt 3108 via a notch in retractable bolt 3108 such that deadlatching slide 3124 prevents retractable bolt 3108 from being externally moved from the extended position. Deadlatching slide 3124 is biased to the second position by compression spring 3126. In Figure 33, a tip portion of deadlatching slide 3124 is received into a recess of retractable bolt 3108 which physically prevents retractable bolt 3108 from being moved from the extended position to the retracted position.

[0181] Also shown is slide override arm 3128, which is shown in the neutral position. Slide override arm 3128 includes first finger 3130 engaged with a shoulder 3112A on slide 3112 and second finger 3132 engaged within recess 3124A of deadlatching slide 3124. When slide 3112 is driven up by spindle cam 3110, shoulder 3112A on slide 3112 drives first finger 3130 upwards causing clockwise rotation of slide override arm 3130 and downward movement of second finger 3132 which, in turn, drives deadlatching slide 3124 downward against compression spring 3126. This movement causes deadlatching slide 3124 to be withdrawn from the notch in retractable bolt 3108, and thus allows retractable bolt 3108 to be retracted. Clearances of components within the lock body are such that deadlatching slide 3124 is clear of the notch in retractable bolt 3108 before retractable bolt 3108 starts its retraction.

[0182] Figure 34 illustrates lock assembly 3100 as shown in Figure 33, but where a user has partially actuated spindle cam by handle which in turn moves slide 3112 partially upwards towards the actuated position, which in turn actuates slide override arm 3128, to remove deadlatching slide 3124 from engagement with retractable bolt 3108. In particular, slide override arm 3128 is rotated about a pivot point such that finger 3132 presses downward on deadlatching slide 3124 to move deadlatching slide 3124 downward against the spring bias provided by compression spring 3126 from the second position toward the first position such that the tip portion of deadlatching slide 3124 is withdrawn from the recess in retractable bolt 3108.

[0183] Figure 34 shows that initial rotation of spindle cam 3110 causes the tip of the deadlatching slide 3124 to move out of engagement with a recess in the retractable bolt 3108 before the retractable bolt starts retracting. If this did not occur, retractable bolt 3108 could not be retracted by the handle.

[0184] With deadlatching slide 3124 disengaged from retractable bolt 3108, a user is able to actuate spindle cam 3110 further via external handle or the like to retract retractable bolt 3108. This is illustrated in Figure 35.

[0185] In Figure 35, a user has rotated spindle cam 3110 to its actuated position, which moves slide 3112 to its actuated position against spring bias provided by compression spring 3500. Movement of slide 3112 upwards causes deadlatching slide 3124 to move downward via rotation of slide override arm 3128 as discussed above, and frees deadlatching slide 3124 from notch in bolt 3108. Further rotation of spindle cam 3110 causes cam 3110A on arm 3300 to contact surface 3114A on driven arm 3114 to and move driven arm 3114, which in turn, moves retractable bolt 3108 to the retracted position via interaction between a boss of driven arm 3114 and a slot in retractable bolt 3108 (e.g., similar to the arrangement in lock assembly 108).

[0186] Lock assembly 3100 is shown in the door closed position since auxiliary bolt 3116 is depressed.

[0187] Figure 36 illustrates the lock after the door has been opened and the handle has been released by a user.

[0188] In Figure 36, slide 3112 is returned to its rest position due to spring bias applied by compression spring 3500 which in turn causes spindle cam 3110 to return to its rest position, and any associated handles to return to their neutral position. Auxiliary bolt 3116 is sprung to its extended position allowing pivot locking arm 3118 to come into contact with retractable bolt 3108. Retractable bolt 3108 is prevented from returning to the extended position due to abutment of nub on retractable bolt 3108 against pivot locking arm 3118.

[0189] It will be understood that the invention disclosed and defined in this specification extends to all alternative combinations of two or more of the individual features mentioned or evident from the text or drawings. All of these different combinations constitute various alternative aspects of the invention.

Claims

CLAIMS1. A remote lock of a multipoint lock assembly, the remote lock comprising: a cartridge housing containing: a bolt having a retracted position and an extended position in which the bolt extends out from a first side of the cartridge housing; and an auxiliary bolt having a retracted position and an extended position in which the auxiliary bolt extends out from the first side of the cartridge housing, the auxiliary bolt being biased to the extended position; remote engagement structure for engagement with a primary lock of a multipoint lock assembly, the remote engagement structure movable from a first position to a second position in response to a user input to the primary lock, to move the bolt from the extended position to the retracted position; wherein the auxiliary bolt is operatively engageable with the bolt to hold the bolt in the retracted position when the auxiliary bolt is in its extended position; and the auxiliary bolt is operatively disengaged from the bolt when the auxiliary bolt is in its retracted position; and wherein when the auxiliary bolt is operatively engaged with the bolt to hold the bolt in its retracted position, the bolt is only movable to its extended position on movement of the auxiliary bolt to its retracted position.

2. The remote lock of claim 1, wherein the bolt is spring biased to the extended position, and on movement of the auxiliary bolt from the extended position to the retracted position, the auxiliary bolt is configured to operatively disengage from the bolt to allow the bolt to move under the spring bias to the extended position.

3. The remote lock of claim 1 or 2, wherein the remote lock further comprises an actuator operatively engageable with the bolt, the actuator being movable between a rest position and an actuated position to move the bolt between the extended position and the retracted position, and wherein when the actuator is in its rest position, the bolt is in the extended position, and when the actuator is in its actuated position, the bolt is in the retracted position.

4. The remote lock of claim 3, wherein the actuator comprises engagement structure engageable with a complimentary engagement structure on the bolt, and the engagementstructure of the actuator and the complimentary engagement structure of the bolt are configured to deadlatch the bolt when the bolt is in the extended position.

5. The remote lock of claim 4, wherein: the engagement structure of the actuator is in the form of a drive boss and the complimentary engagement structure of the bolt is in the form of a channel, the drive boss being located within the channel; or the engagement structure of the actuator is in the form of a channel and the complimentary engagement structure of the bolt is in the form of a drive boss, the drive boss being located within the channel.

6. The remote lock of claim 5, wherein the drive boss and the channel are configured to permit an initial movement of the actuator from the rest position toward the actuated position without movement of the bolt.

7. The remote lock of any one of claims 3 to 6, wherein the actuator is a slide that is linearly translatable between its rest position and its actuated position within the cartridge housing of the remote lock.

8. The remote lock of claim 7 when dependent on any one of claims 5 or 6, wherein the channel includes a straight portion and a curved portion, and wherein when the bolt is extended and the actuator is in the rest position, the drive boss is seated in the straight portion, and the straight portion of the channel is aligned in the direction of movement of the slide such that movement of the drive boss within the straight portion does not cause movement of the bolt.

9. The remote lock of claim 8, wherein: when the drive boss is seated within the straight portion of the channel, the bolt is deadlatched in the extended position; and / or movement of the drive boss within the curved portion causes movement of the bolt between its extended and retracted positions.

10. The method of any one of claims 3 to 9, wherein on movement of the auxiliary bolt to its extended position, the auxiliary bolt is configured to engage the actuator when the actuator is in its actuated position to hold the actuator in the actuated position, and the auxiliary bolt comprisesengagement structure configured to engage a complimentary engagement structure on the actuator to hold the actuator in the actuated position.

11. The remote lock of claim 10, wherein the auxiliary bolt and actuator each comprise mutually engageable shoulders that are configured to engage when the actuator is in the actuated position and the auxiliary bolt is in the extended position to hold the actuator in the actuated position, and the auxiliary bolt and actuator are disengaged when the auxiliary bolt is in its retracted position.

12. The remote lock of any one of claims 3 to 11, wherein the auxiliary bolt is operatively engageable with the bolt via the actuator.

13. The remote lock of any one of claims 3 to 12, wherein: when the remote engagement structure is in the first position, the remote engagement structure is, is configured to be, or can be operatively disengaged from the actuator, and the actuator can be in either the rest position or the actuated position; and / or when the remote engagement structure is in the second position, the remote engagement structure is operatively engaged with the actuator, and the actuator is in the actuated position.

14. The remote lock of any one of claims 3 to 13, wherein: the remote engagement structure is configured to operatively engage with the actuator to move the actuator from the rest position to the actuated position on movement of the remote engagement structure from the first position to the second position; and / or the remote engagement structure is configured to operatively disengage from the actuator when the remote engagement structure is moved from the second position to the first position.

15. The remote lock of any one of the preceding claims, wherein: when the remote engagement structure is in the first position, the remote engagement structure is operatively disengaged from the bolt, and the bolt can be in either the extended position or the retracted position; and / or when the remote engagement structure is in the second position, the remote engagement structure is operatively engaged with the bolt, and the bolt is in the retracted position; and / or the remote engagement structure is configured to operatively engage with the bolt to move the bolt from the extended position to the retracted position on movement of the remote engagement structure from the first position to the second position; and / orthe remote engagement structure is configured to operatively disengage from the bolt when the remote engagement structure is moved from the second position to the first position.

16. The remote lock of any one of the preceding claims, wherein the remote engagement structure extends out of a second side of the cartridge housing opposite the first side to receive the user input.

17. The remote lock of any one of claims 3 to 16, wherein the remote lock further comprises a driver operatively engageable with the actuator, the driver having a neutral position and a driven position, the driver configured to receive a user input via the remote engagement structure to move the driver from the neutral position to the driven position, and wherein: when the driver is in the neutral position, the driver is operatively disengaged from the actuator, and the actuator can be in either the rest position or the actuated position; and / or when the driver is in the driven position, the driver is operatively engaged with the actuator, and the actuator is in the actuated position; and / or the driver is configured to operatively engage with the actuator to move the actuator from the rest position to the actuated position on movement of the driver from the neutral position to the driven position; and / or the driver is configured to operatively disengage from the actuator when the driver is moved from its driven position to its neutral position; and / or the driver is operatively engageable with the bolt via the actuator.

18. The remote lock of any one of claims 1 to 16, wherein the remote lock further comprises a driver operatively engageable with the bolt, the driver having a neutral position and a driven position, the driver configured to receive a user input via the remote engagement structure to move the driver from the neutral position to the driven position, and wherein: when the driver is in the neutral position, the driver is operatively disengaged from the bolt, and the bolt can be in either the extended position or the retracted position; and / or when the driver is in the driven position, the driver is operatively engaged with the bolt, and the bolt is in the retracted position; and / or the driver is configured to operatively engage with the bolt to move the bolt from the extended position to the retracted position on movement of the driver from the neutral position to the driven position; and / orthe driver is configured to operatively disengage from the bolt when the driver is moved from the driven position to the neutral position; and / or the driver comprises a first portion retained within the cartridge housing operatively engaged with the actuator, and a second portion extending out of a second side of the cartridge housing opposite the first side, the second portion comprising the remote engagement structure; and / or when the auxiliary bolt is operatively engaged with the bolt to hold the bolt in its retracted position, the retractable bolt is not movable to its extended position via actuation or movement of the driver.

19. The remote lock of claim 1, wherein when the auxiliary bolt is operatively engaged with the bolt to hold the bolt in its retracted position, the retractable bolt is not movable to its extended position via actuation or movement of the remote engagement structure and / or in response to the user input.

20. A multi-point lock system comprising a primary lock and one or more remote locks according to any one of the preceding claims, wherein the bolt is configured to be retracted on actuation of the primary lock.

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