WO2015188236A1

WO2015188236A1 - Multi point high security deadlock

Info

Publication number: WO2015188236A1
Application number: PCT/AU2015/050338
Authority: WO
Inventors: Gain Phillip TIPPER
Original assignee: Tipper Gain Phillip
Priority date: 2014-06-10
Filing date: 2015-06-18
Publication date: 2015-12-17

Abstract

The apparatus is for locking and unlocking doors under electronic or manual control by having locking bars (3) move into and out of engagement between the door and the surrounding structure. The apparatus includes locking bars (3) that extend to engage and retract to disengage as the consequence of the roller (33) operating in 5 the angular portion of slot (5) when the actuation plate (4) is slideably moved. When locking bars (3) are fully extended, further movement of the actuation plate (4) in the engagement direction moves the attached deadlock block (29) into a position behind the locking bar (3), to prevent locking bar (3) being otherwise moved into the retracted position. Operating the actuation plate (4) in the opposite direction removes 10 the deadlock (29) from behind the locking bar (3) and then causes the roller (33) to move the locking bar (3) to the retraced position.

Description

The invention is described in the following statement: Multipoint High Security Deadlock.

The invention relates to a multipoint locking device, for high security or high strength doors and other types of barriers.

Background of the invention.

The invention is a multipoint deadlock designed for use with a wide range of security doors and other types of barriers that are used in high security and high strength applications where multiple high strength locking engagements are required to effectively secure the door or barrier.

By securing the door or barrier at more than one point provides greater barrier strength, to resist forced opening and distribute any forced opening load over more than one fixing point in the door or surrounding frame or structure.

Multipoint deadlocks are currently operated manually, electro-mechanically, pneumatically and electro-pneumatically; as well as being operated by various combinations of the previously described methods.

Although all the current operating methods provide multipoint locking solutions for some applications, many of these locks have significant deficiencies and limitations that not only diminish and compromise their effectiveness, these deficiencies prevent multipoint deadlocking being used for many other applications.

Some of the current deficiencies include the deadlocking of multiple locking bars being provided by a mechanism that provides only one common deadlocking point, or having the disengagement force on any locking bar being transferred to that deadlocking point by bars or rods that operate the locking bars into engagement with the catch device.

For manually operated multipoint deadlocks, the external lock actuation, and control from the unsecured side of a lock is usually provided by a key only, or a lockable lever mechanism.

Where a key is the only method to operate a multipoint lock, the force that can be applied to engage or disengage the lock is clearly limited; and any damage to the lock or door structure can cause the key to be unable to unlock the device or even cause the key to break within the lock barrel. With a lockable lever mechanism, security is compromised, as such a device is vulnerable to damage and tampering while also providing a limited level of security. In either case, if he key or lever is damaged the external control of lock is critically compromised.

Many electrically operated multipoint deadlocks do not have the operating power that is required to provide the effective and safe engagement and disengagement of the locking bars or other locking devices.

With most current electro-mechanical multipoint deadlocks being usually operated by electric motors to provide the force required to engage and disengage the locking bars, such motors can prevent or limit the manual control functions. Locks operated by electric motors also provide a prolonged disengagement period; not the

instantaneous release that is currently available from the current 'drop bolt' and other types of electronic and electronically operated locks, nor the instantaneous release that is demanded by most users. Where electrically operated deadlocks use other actuation devices such as solenoids of magnets, these devices provide instantaneous power which is usually very limited in its strength and usually only provides a very short engagement depth for the locks.

Furthermore, most multipoint locks provide a limited variety of structural and operational configurations, and can only be produced in limited range.

The purpose of this invention is to provide a multipoint deadlock that overcomes some or all of the previously described deficiencies or limitations or provides a better alternative locking solution for the locking applications.

Summary of the invention.

The first aspect of the invention provides an electrically operated multipoint deadlock mechanism (the lock) that includes;

a lock chassis plate being a steel plate on which the various lock components, mechanisms and assemblies are directly and indirectly mounted and which said plate is formed in to such a shape as to provide a structure upon which a cover plate can be affixed.

a chassis plate which is caused to be affixed to a door or barrier structure by fastening hardware affixing the locking bar mechanisms to the associated door or barrier

a lock cover plate that when affixed to the lock chassis plate, forms an enclosure that houses the locks multipoint locking components, mechanisms and assemblies, and whereby the cover is affixed to the chassis plate by removable fasteners.

The first aspect of the invention also includes at least two locking bar mechanisms, whereby each locking mechanism is rigidly affixed to the lock chassis, and whereby each said locking bar mechanism includes;

a locking bar housing that provides the support and restraint structure to retain the associated locking bar so the said locking bar remains operably attached to the said housing while providing for the slideable movement of the associated locking bar from the retracted position to the extended position and from the extended position to the retracted position.

a locking bar housing that includes fixing points to secure the lock to the associated door of other type of structure.

a locking bar housing that includes a side member where said side member has a recess to allow the a portion of the deadlocking block attached to the locking bar actuation plate to be moved into and away from a position that is behind the rear edge or the locking bar, when the locking bar is in the fully extended position.

a locking bar housing that includes the support structure to mount the associated locking bar actuation plate's guide and restraint blocks and pads.

a locking bar housing that includes the locking bar actuation plate guide blocks and pads that locate and affix the locking bar actuation plate in such a manner so as to allow the slideable movement of the said locking bar actuation plate in the direction that is both to and from the said pate's engaged position, while said guide locks and pads retain said actuation plate in such a position as to maintain the roller operating slot in such a position as to remain engage with the locking bar operating roller.

a locking bar housing that locates the locking bar assembly so the said bar assembly can slidably move between the extended and retracted positions, and said housing locates the locking bar actuation plate in a position so that the said actuation plate can slidably move between the engaged and disengaged positions.

a locking bar housing that locates the locking bar actuation plate and locking bar assembly so the linear movement of the locking bar actuation plate causes the corresponding linear movement in the locking bar assembly.

The first aspect of the invention also includes a locking bar assembly that comprises; a locking bar member that slides into and out of engagement with the associated catch

an operating roller that is affixed to each locking bar in a position so that the operating roller will engage with the associated locking bar roller operating slot provided in the locking bar actuation plate.

a locking bar assembly is slidably mounted in the locking bar housing, so as to allow movement of the locking assembly bar along a path so that when the locking bar assembly is moved into the extended position, the locking bar will engage with a catch to prevent the door or barrier opening, and when the locking bar is moved to the retracted position, said locking bar will disengage from said catch and allow the door or barrier to open.

The first aspect of the invention also provides a locking bar actuation plate assembly, whereupon the slideable movement of said plate assembly from the engaged position to the disengaged positions causes the locking bars to move in a linear direction from the extended position to the retracted position, and the locking bar actuation plate moving from the disengaged position to the engaged position causes the locking bar to move from the retracted position to the extended position..

The first aspect of the invention provides a locking bar actuation plate assembly that includes a locking bar actuation plate where said actuation plate is slidably affixed to each locking bar mechanism.

The first aspect of the invention provides a locking bar actuation plate assembly that includes a locking bar actuation plate where said actuation plate includes a roller operating slot for each associated locking bar mechanism, whereby the roller operating slot allows the linear movement of the locking bar actuation plate to cause the corresponding linear movement of the associated locking bar assemblies.

The first aspect of the invention provides a locking bar actuation plate that has a portion of the roller operating slot axis that is angular to the direction of the axis of movement of the locking bar actuation plate, and a portion of the roller operating slot at either end of the angular slot, whereby the slot axis is parallel to axis of movement of the locking bar actuation plate. The first aspect of the invention provides a locking bar actuation plate that has a portion of the said slot with the slot axis being parallel to the slideable movement direction of the locking bar actuation plate, and said actuation plate has a portion of said slot that has its axis angular to the axis of said slideable movement direction.

The first aspect of the invention provides a locking bar actuation plate that when said plate is moving in either linear direction and the locking bar operating roller is engaged within the portion of the locking bar roller slot that is angular to the axis of the locking bar actuation plates direction of movement, the linear movement of the locking bar actuation plate will causes the locking bar to move in a linear direction that is perpendicular to the locking bar actuation plates movement direction.

The first aspect of the invention provides a locking bar actuation plate that when said plate is moving in either linear direction and the locking bar operating roller is engaged within the portion of the locking bar roller slot that is parallel to the axis of the locking bar actuation plates direction of movement, the linear movement of the locking bar actuation plate will not cause the locking bar to move in either linear direction.

The first aspect of the invention provides a locking bar actuation plate that when moved from the disengaged position to the engaged position, said movement will cause the associated locking bars to move into the extended position, and when said locking bar actuation plate is moved from the engaged to the disengaged position will cause the said locking bars to move to the retracted position.

The first aspect of the invention provides a locking bar actuation plate that is preferably operated in a linear direction back and forth, by one or more of the multipoint deadlock's actuation mechanisms. The first aspect of the invention provides a locking bar actuation plate assembly that has one deadlocking block permanently and rigidly affixed to said actuation plate for each locking bar mechanism. The said deadlocking block is affixed to the locking bar actuation plate in such a position that when the locking bar actuation plate is in the fully engaged position, a portion of the deadlocking bock will have been moved through the recess in the locking bar housing and positioned behind the fully extended locking bar.

The first aspect of the invention provides a locking bar actuation plate that after said actuation plate has moved in the linear direction to the position so as to cause the locking bar to obtain the fully extended position, the further linear movement of the locking bar actuation plate towards the fully engaged position will cause the deadlocking block affixed to the locking bar actuation plate to be moved into a position within the locking bar mechanism housing, where portion of the deadlocking block is positioned behind the rear edge of the locking bar, and where a portion of the deadlocking block is positioned within the recess in the side member of the locking bar mechanism housing.

The first aspect of the invention provides a locking bar actuation plate that when said plate is moving away from the fully engaged position and towards the disengaged position, and when the locking bar roller is moving in the portion of the locking bar roller operating slot that has the slots central axis parallel with the movement direction of the locking bar actuation plate, the said movement will not cause the locking bar to move, but the said movement will cause the deadlocking block located within the locking bar mechanism housing to move away from a position that is behind the locking bar, and when the locking bar actuation plate is moving away from the engaged position, and the locking bar actuation plate has moved to the position where the locking bar operating roller is engaging with the angular portion of the locking bar roller, the deadlocking block attached to the locking bar actuation plate has been moved to a position where it is not behind the locking bar, the continued movement of the locking bar actuation plate towards the disengaged position will cause the deadlocking block to move away from engagement with the locking bar mechanism housing and also cause the locking bar to move in the retracted direction.

The first aspect of the invention provides a locking bar actuation plate that includes a deadlocking block that is permanently and rigidly attached to said plate, whereupon when said deadlocking block is positioned behind a locking bar residing in the fully extended position, the said deadlocking block will prevent the locking bar moving to the retracted position, and when said deadlocking block is not in a position behind the locking bar, the said locking bar can be moved into the retracted position by the linear movement of the locking bar actuation plate towards the disengaged position.

The first aspect of the invention provides a locking bar actuation plate that when moving into the engaged position, will cause a portion of the deadlocking block to be moved into a position behind the locking bar, while a portion of the

deadlocking block also remains within the recess of a side member of the locking bar housing.

The first aspect of the invention provides a spring affixed between the locking bar actuation plate and the lock chassis, whereby said spring provides the locking bar actuation plate with a permanent mechanical operating bias to cause the locking bar actuation plate to move in the disengagement direction when the locking bar actuation plate control latch is disengaged from the moveable surface attached to the extended electric actuator shaft or the secondary mechanical locking point. The first aspect of the invention also provides a locking bar actuation plate control latch mechanism that is pivotally affixed to the locking bar actuation plate in such a position as to allow the locking bar actuation plate control latch to be operated by the release gate mechanism or the internal manual control mechanism or the external key control mechanism to both engage with, and disengage from, the electric actuator's moveable surface and the lock's secondary latching point.

The first aspect of the invention also provides for the locking bar actuation plate control latch to move into the position to engage with the moveable surface of the electric actuator, and thereby when the electric actuator is moving towards the extended position and the locking bar actuation plate control latch is engaged with the moveable surface, the locking bar actuator plate will be moved towards the engaged position.

The first aspect of the invention also provides a locking bar actuation plate control latch that when engaged with the electric actuator's moveable surface in the fully extended position, said control latch will prevent the locking bar actuation plate moving into the disengaged position.

The first aspect of the invention also provides a locking bar actuation plate control latch that when disengaged from the electric actuator's moveable surface and not engaged with the secondary latching point, the said control latch will allow the locking bar actuation plate moving into the disengaged position.

The first aspect of the invention also provides a locking bar actuation plate control latch that when said latch engages with the locks secondary mechanical latching point the said latch prevents the locking bar actuation plate from moving to the disengaged position. The first aspect of the invention also provides a locking bar actuation plate control latch that when engaged with the locks secondary mechanical latching point, the movement of the electric actuator from the retracted position to the fully extended position will cause the moveable surface to engage with the locking bar actuation plate control latch and thereby move the said control latch further towards the engaged position and thereby cause said control latch to disengage from the secondary mechanical latching point. The said engagement of the moveable surface with the locking bar actuation plate control latch will prevent the locking bar actuation plate moving to the disengaged position.

The first aspect of the invention also provides a locking bar actuation plate control latch, that when the electric actuator's moveable surface is not in the fully extended position, by moving the locking bar actuation plate manually into the fully engaged position, will cause the locking bar actuation plate control latch to engage with the secondary mechanical latching point , and thereby prevent the locking bar actuation plate moving to the disengaged position under the effect of the biasing spring or any disengagement force applied by either associated manual operating mechanism, until the locking bar actuation plate control latch is disengaged from the secondary mechanical latching point by the electric actuator engaging with the locking bar actuation plate control latch and disengaging said control latch from the secondary latching point, or by operating the internal manual control mechanism or the external key mechanism to disengage said control latch.

The first aspect of the invention also provides a spring affixed between the locking bar actuation plate control latch and the locking bar actuation plate to provide a permanent bias to move the said control latch in the direction to engagement with the electric actuators movable surface or the secondary mechanical latching point. The first aspect of the invention also provides a locking bar actuation plate control latch that when disengaged from the secondary mechanical latching point, and the said latch does not become engaged with the electric actuators movable surface, said latch will allow the locking bar actuation plate to move into the disengaged position.

The first aspect of the invention also provides a locking bar actuation plate control latch that is caused to disengage from the electric actuator or the secondary latching point by operating of the key mechanism or internal manual control mechanism lever in a manner to cause the locking bars to retract.

The first aspect of the invention also provides a locking bar actuation plate control latch that is pivotally affixed to the locking bar actuation plate.

The first aspect of the invention also provides a locking bar actuation plate control latch roller attached to the locking bar actuation plate control latch, whereby the said roller is positioned for engagement with and disengagement from the release gate operating block.

The first aspect of the invention also provides a locking bar actuation plate control latch, whereby when the locking bar actuation plate is caused to move from the fully engaged position, towards the disengaged position by the electric actuator retracting the moveable surface, whereby the movement of the said actuation plate towards the disengaged position causes the locking bar actuation plate control latch roller to engage with the release gate mechanism control block and thereby with the continued movement of the locking bar actuation plate towards the disengaged position, such movement will cause the locking bar actuation plate control latch to move away from engagement with the electric actuator, and allow the locking bar actuation plate to move to the disengaged position under the effect of the said actuation plate's biasing spring. The first aspect of the invention also provides a release gate mechanism that includes a base plate that is pivotally affixed to the lock chassis,

The first aspect of the invention also provides a release gate mechanism control block that has three surfaces which can engage with the locking bar actuation plate control latch operating roller.

The first aspect of the invention also provides a release gate mechanism control block that has One surface that is angular to the direction of the locking bars linear travel, and whereby the said angular surface cause the locking bar actuation plate control latch operating roller to move the locking bar actuation plate control latch away from engagement with the electric actuator's moveable surface.

The first aspect of the invention also provides a release gate mechanism control block that has another surface that is parallel to the direction of the locking bars linear travel, and whereby when the locking bar actuation plate is moving from the engaged position towards the disengaged position when the said operating roller maintains the locking bar actuation plate control latch out of engagement with said moveable member until the locking bar actuation plate has reached the fully disengaged position, and whereby the control block allows the locking bar actuation plate control latch to regain a position to engage with the said moveable member when the said moveable member reaches the fully retracted position.

The first aspect of the invention also provides a release gate mechanism control block that has further surface on the release gate mechanism control block, whereby the locking bar actuation plate control latch moving from the locking bar operating plates disengaged position to the engaged position, causes the locking bar actuation plate control latch operating roller to rotate the release gate mechanism about the fixing point, so as to move the said control block into a position that allows the electric actuator's movable surface that is engaged with the locking bar actuation plate control latch, to move the locking bar actuation plate from the disengaged position to the engaged position without causing the locking bar actuation plate control latch to disengage from the said moveable surface, and whereby, when the locking bar actuation plate control latch operating roller reaches the end of said control block surface, the spring attached to the release gate mechanism base plate causes the release gate mechanism to regain the position where the locking bar actuation plate control latch operating roller will again engage with the first surface when the locking bar actuation plate is moving from the fully engaged position to the disengaged position.

The first aspect of the invention also provides a release gate mechanism that is pivotally affixed to the lock chassis in a position that will cause the locking bar actuation plate control latch to disengage from the electric actuator's moveable surface when the electric actuator retracts and thereby cause the locking bar actuation plate to move towards the disengaged position, and when the electric actuator moves the locking bar actuation plate from the disengaged position to the engaged position, the release gate mechanism pivots about its fixing point to allow the locking bar actuation plate latch to remain engaged with the electric actuator or if the locking bar actuation plate is manually moved to the engaged position, become engaged with the secondary mechanical latching point.

The first aspect of the invention also provides a release gate mechanism that is pivotally affixed to the lock chassis, whereby when said gate is in the "first" position, and when the locking bar actuation plate moves from the engaged position to the disengaged position, the release gate mechanism remains in the 'first' position to cause the locking bar actuation plate control latch to move to a position whereby the said control latch is disengaged from the electric actuator. The first aspect of the invention also provides a release gate mechanism that is pivotally mounted to the lock chassis, whereby when the locking bar actuation plate moves from the disengaged position to the engaged position, the movement of the locking bar actuation plate control latch causes the release gate

mechanism to pivot about the fixing point, and move the release gate

mechanism into the "second" position, thereby to allow the locking bar actuation plate's control latch to remain in engagement with the electric actuator, while the actuator moves the locking bar actuation plate from the disengaged position to the engaged position.

The first aspect of the invention also provides a release gate mechanism that is pivotally mounted to the lock chassis, whereby the locking bar actuation plate is moved to from the 'second' position to the 'first' position by a spring affixed between the release gate mechanism and the lock chassis.

The first aspect of the invention also provides a release gate mechanism that is pivotally mounted to the lock chassis, whereby when the locking bar actuation plate moves towards the disengaged position as the result of the electric actuator operating towards the retracted position, the release gate mechanism causes the locking bar actuation plate's control latch to disengage from the actuators movable surface, and thereby allowing the locking bar actuation plate to move to the disengaged position under the effect of the biasing spring , the electric actuator, or the operation of any associated manual control mechanism.

The first aspect of the invention also provides a locking bar actuation plate retraction latch assembly that includes a retraction latch plate pivotally affixed to the locking bar actuation plate, and a retraction latch roller affixed to the retraction plate, and a spring affixed between the said retraction plate and the locking bar actuation plate. The first aspect of the invention also provides a locking bar actuation plate retraction latch assembly, whereby a portion of said retraction latch plate resides in a position behind the electric actuators moveable surface until the locking bar actuation plate has reached the fully retracted position, whereby the said retraction latch is moved to a position where said portion of the retraction latch in moved into another position where it is not behind the said movable member.

The first aspect of the invention also provides a locking bar retraction latch plate that when a portion of said latch it is in a position behind the electric actuators moveable surface, the electric actuator moving to the retracted position will cause the locking bar actuation plate to move to the disengaged position, in

circumstances where the locking bar actuation plate is not already moved to the disengaged position by the operating spring after the locking bar actuation plate latch has been disengaged from the electric actuator's moveable surface.

The first aspect of the invention also provides a locking bar retraction latch plate that when a portion of said latch is not in a position behind the electric actuators moveable surface, the electric actuator moving to the retracted position will not cause the locking bar actuation plate to move to the disengaged position.

The first aspect of the invention also provides a locking bar retraction latch plate that when the locking bar actuation plate reaches a position just before that of being fully disengaged, the retraction plate roller engaged with the latch plate guide affixed to the chassis and thereby causes the retraction latch to move into the position where no portion of said retraction latch plate is behind the moveable surface.

The first aspect of the invention also provides a locking bar retraction latch plate that when said plate is moved into the position where said plate is not behind the movable surface, said plate engages with the locking bar retraction latch plate catch to hold the said retraction latch plate in a position where it is not returned to a position where a portion of the said retraction latch would reside behind the movable member until the locking bar actuation plate has moved into a position of full engagement.

The first aspect of the invention also provides a locking bar retraction latch plate that when said latch plate is released from the locking bar retraction latch plate catch, a spring provides a bias to move the said retraction latch to a position that is behind the moveable member, when the moveable member moves into the fully extended position.

In circumstances where after the locking bar actuation plate control latch has been released, and the locking bar actuation plate has not already moved to the disengaged position by the effect of the operating spring or a manual operating lever. The first aspect of the invention also provides a locking bar actuation plate retraction latch that is pivotally affixed to the locking bar actuation plate in a position so the said retraction latch will engage with the electric actuator's moveable surface and cause the locking bar actuation plate to be moved towards the disengaged position by the electric actuator retracting the moveable member.

The first aspect of the invention also provides a locking bar actuation plate retraction latch catch mechanism that includes a retraction latch catch plate that is pivotally mounted on the locking bar actuation plate, in a position to catch and hold the locking bar actuation plate retraction latch from moving into a position to engage with the electric actuator, after the locking bar operating plate has moved to the fully retracted position, and whereby said latch catch is to retain the locking bar actuation plate retraction latch in said position until the locking bar actuation plate has moved to the fully engaged position. Whereupon, the locking bar actuation plate retraction latch catch releases the actuation plate latch and allows the locking bar actuation plate retraction latch to move into a position where said retraction latch can engage with the retracting electric actuator and thereby cause the locking bar actuation plate to move into the disengaged position.

The first aspect of the invention also provides an electrically operated and controlled actuation mechanism that is preferably an electrically operated linear actuator affixed to the lock chassis.

The first aspect of the invention also provides an electrically operated and controlled actuation mechanism that is caused to move an operable shaft towards and from the extended and retracted positions by the application of electric power to the actuator's electric motor.

The first aspect of the invention also provides an electrically operated and controlled actuation mechanism which includes moveable surfaces that are coupled to the actuator's extendable shaft, whereby when said actuator moves towards the extended position, a movable surface engages with the locking bar actuation plate's control latch, and thereby moves the locking bar actuation plate towards the engaged position.

The first aspect of the invention also provides an electrically operated and controlled actuation mechanism which includes a moveable surface that is coupled to the actuator, whereby when said electric actuator moves towards the retracted position, and whereby the locking bar actuation spring has not caused the locking bar actuation plate to move to the disengaged position, the said moveable surface engages with the locking bar actuation plate's retraction latch, and thereby moves the locking bar actuation plate towards the disengaged position. The first aspect of the invention also provides an electrically operated and controlled actuation mechanism which includes a moveable surface that is coupled to the actuator, whereby when said electric actuator moves towards the retracted position, causes the locking bar actuation plate to move towards the disengaged position, and thereby causes the locking bar actuation plate control latch to disengage from the electric actuator and allow the biasing spring or electric actuator to move the locking bar actuation plate towards the disengaged position.

The first aspect of the invention also provides an electrically operated and controlled lock actuation mechanism that is preferably an electrically operated linear actuator that has its body affixed to the lock chassis. The linear actuator includes a shaft that extends and retracts from the actuator in response to the linear actuator being operated by an electrical current. The linear actuator shaft has moveable surfaces attached to the shaft end, whereby the moveable surfaces moves in response to the movement of the shaft. The moveable surfaces are preferably a rollers that is attached to the end of the actuator shaft by a spindle.

The first aspect of the invention also provides an electrically operated and controlled lock actuation mechanism that when said mechanism is operated towards the retracted position, will cause the locking bar actuation plate to move towards the disengaged position and thereby cause the release gate mechanism to disengage the locking bar actuation plate control latch from the electric actuators moveable surface, and thereby allow the biasing spring or electric actuator to move the locking bar actuation plate to the disengaged position.

The first aspect of the invention also provides an electrically operated and controlled lock actuation mechanism that when said mechanism is operated towards the retracted position, and the biasing spring fails to cause the locking bar actuation plate to move to the disengaged position, the retracting electrically operated actuation mechanism will engage the movable surface with the locking bar actuation plate's retraction latch and cause the locking bar actuation plate to move the locking bar actuation plate towards the disengaged position.

The first aspect of the invention also provides an electrically operated and controlled lock actuation mechanism that when said mechanism is operated towards the extended position, the movable surface of said actuation

mechanism will engage with the locking bar actuation plate control latch and thereby cause the locking bar actuation plate to move to the engaged position.

The first aspect of the invention also provides an electrically operated and controlled lock actuation mechanism that when the electric actuator and thereby the movable surface is in the fully extended position, the locking bar actuation plate control latch is engaged with the moveable surface and thereby prevents the locking bar actuation plate moving to the disengaged position.

The first aspect of the invention also provides a manual lock actuation

mechanism that has an operating lever located on the inside, or secure side of the lock, and whereby said mechanism is manually operated by depressing or raising the said mechanism's operating lever, whereupon by depressing the lever below the horizontal will cause the locking bars to move from the extended position to the retracted position, and whereby manually raising the lever is above the horizontal will, cause the locking bars to move from the retracted position to the extended position.

The first aspect of the invention also provides a manual lock actuation

mechanism that is operated manually via a lever located on the inside or secured side of the lock, whereby when the lever is operated in a downward direction to retract the locking bars, the said mechanism provides the dual function of firstly disengaging the locking bar actuation plate latch, from the electric actuator's movable surface or the secondary mechanical latching point to allow the lock actuation plate to move under the influence of the biasing spring into the disengaged position and retract the locking bars, and in circumstances where the lock actuation plate does not move to the fully disengaged position under the effect of the biasing spring, the said mechanism has the second function of allowing the further rotation of the manual operating lever to apply a direct manually produced load to the locking bar actuation plate, so as to forcibly move the said plate into the disengaged position and thereby retract the locking bars.

The first aspect of the invention also provides a key operated manual lock control mechanism on the outside or unsecured side of the door and lock. Whereby said mechanism operates the locking bar actuation plate latch between the latched state where the said latch prevents the locking bar actuation plate moving to the disengaged position, and unlatched state where said latch position allows the locking bar actuation plate to move to the disengaged position.

The first aspect of the invention also provides a key operated control mechanism on the outside or unsecured side of the door and lock, that when rotated into the locked position will allow the locking bar actuation plate latch to become engaged with electric actuator's movable surface or secondary mechanical engagement point, and thereby prevent the lock actuation plate to be moved in the disengagement direction; and when rotated into the unlocked position, will cause the locking bar actuation plate latch to be disengaged from said electric actuator's movable surface or secondary mechanical engagement point, and thereby allow the locking bar actuation plate to be moved in the disengagement direction and thereby cause the locking bars to retract.

The first aspect of the invention also provides a lock actuation mechanism that is manually operated by a lever located on the outside or unsecured side of the lock, whereby when the key operated control mechanism is rotated into the unlocked position and the lock actuation plate is not already automatically moved into the disengaged position by the biasing spring, by depressing the operating lever below the horizontal, the said mechanism will impart an actuation force upon the locking bar actuation plate and move the said plate to the disengaged position and thereby cause the locking bars to move from the extended position to the retracted position.

The first aspect of the invention also provides a lock actuation mechanism that is manually operated by a lever located on the outside or unsecured side of the lock, whereby raising the said lever above the horizontal will cause the locking bar actuation plate to move into the engaged position and cause the locking bars to move from the retracted position to the extended position.

The first aspect of the invention also provides a lock actuation load limiting mechanism that restricts the load that can be applied by the internal or external manual operating lever mechanisms to the lock actuation plate.

The first aspect of the invention also provides a lock actuation load limiting mechanism that includes a load transfer plate that is slidably mounted upon the lock actuation plate. The load transfer plate includes activation surfaces which are perpendicular to the plate surface and provide the contact faces that allow the load transfer plate to be operated by the internal and external manual operating lever mechanisms.

The first aspect of the invention also provides a lock actuation load limiting mechanism that includes a biasing spring coupled between the load limiting mechanism and the locking bar actuation plate to provide the load limiting plate with a permanent bias towards the engaged direction of the locking bar actuation plate. The first aspect of the invention also provides a lock actuation load limiting mechanism, that when a load is applied by either the internal or external manual operating levers to the load limiting plate activation surfaces that can cause the locking bar actuation plate to move in the disengagement direction,, and where that load applied by the lever to the load limiting mechanism is greater than load of the associated biasing spring, and the locking bar actuation plate is retained in the engaged position by the locking bar actuation plate control latch, by rotating the manual operating levers in a downward direction, the load applied to the load limiting mechanism will cause the load actuation plate to slidably move in the disengagement direction of the locking bar actuation plate, without causing the locking bar actuation plate to move in the disengagement direction.

The first aspect of the invention also provides a lock actuation load limiting mechanism that when a load is applied by either the internal or external manual operating levers to the load limiting plate activation surfaces is in a direction to cause the locking bar actuation plate to move in the disengagement direction, and when the applied load by the lever to the load limiting mechanism is less than load of the associated biasing spring applies to the load limiting mechanism, and the locking bar actuation plate is not retained in the engaged position by the locking bar actuation plate control latch, the manual operating levers will cause the load actuation plate to slidably move the locking bar actuation plate, in the disengagement direction.

In preferred embodiments of the invention the multipoint lock will include two, three, four, or five locking bar modules.

In preferred embodiments of the invention the multipoint lock will include additional locking bar modules operated by a locking bar actuation plate with a deadlocking block affixed, whereby the additional locking bar modules are housed in a separate assembly, and whereby the additional locking bar modules are operated by the multipoint deadlocking mechanisms described herein. In preferred embodiments of the invention the multipoint lock will include at least two locking bar modules, the electric actuation mechanism, the internal manual control mechanism, the external key control mechanism, the external key control mechanism and the latching and control components associated with the aforementioned mechanisms.

In other preferred embodiments of the invention the multipoint lock will include at least two locking bar modules, the electric actuation mechanism, the internal manual control mechanism, and the latching and control components associated with the aforementioned mechanisms.

In preferred embodiments of the invention the multipoint lock will include at least two locking bar modules, the electric actuation mechanism, the external key control mechanism, the external key control mechanism and the latching and control components associated with the aforementioned mechanisms.

In preferred embodiments of the invention the multipoint lock will include at least two locking bar modules, the electric actuation mechanism, and the latching and control components associated with the aforementioned mechanisms.

In preferred embodiments of the invention the multipoint lock will include at least two locking bar modules, the internal manual control mechanism, the external key control mechanism, the external key control mechanism and the latching and control components associated with the aforementioned mechanisms. In preferred embodiments of the invention the multipoint lock will include at least two locking bar modules the internal manual control mechanism, and the latching and control components associated with the aforementioned mechanisms.

In preferred embodiments of the invention the multipoint lock will include at least two locking bar modules, the external key control mechanism, the external key control mechanism and the latching and control components associated with the aforementioned mechanisms.

In preferred embodiments of the invention the multipoint lock is built to be affixed to the external surface of a door, other type of barrier or the surrounding structure, and will include a cover that can be affixed to the lock chassis.

In preferred embodiments of the invention the multipoint lock is built to be installed within a door or barrier structure and will not include a cover that can be affixed to the lock chassis.

In preferred embodiments the invention does not include a disengagement biasing spring for the locking plate actuation bar, but instead will include an engagement biasing spring affixed between the locking bar actuation plate and the lock chassis to impart a constant bias for the movement of the locking bar actuation plate towards the engaged position.

In preferred embodiments, the invention with an engagement spring bias to the locking bar actuation plate, the invention includes a locking bar self-engagement activation latch mechanism that retains the locking bar actuation plate in the disengaged position against the engagement spring bias, and after the door has been opened and the electric lock actuator has moved towards the extended position. In preferred embodiments, the invention includes a locking bar self-engagement activation latch mechanism that is caused to disengage from the locking bar actuation plate by the door closing.

In preferred embodiments the invention includes a hydraulic cylinder with a valve that maintains the locking bar actuation plate in the disengaged position when the door is open and the electric actuator has moved into a position to allow the locking bar actuation plate to move to the fully engaged position, and whereby the valve allows the locking bar actuation plate to move to the engaged position when the door is closed.

In preferred embodiments the invention includes a locking bar self-engagement activation latch and a hydraulic cylinder with a valve.

In preferred embodiments, the invention includes a locking bar self-engagement activation latch that when the locking bar actuation plate has a spring biasing its movement towards the engaged position, when the locking bar self-engagement activation latch is disengaged from the locking bar actuation plate, said plate moves to the engaged position and causes the locking bars to extend.

In preferred embodiments, in circumstances where the biasing spring does not cause the locking bar actuation plate to move to the engaged position after the locking bar self-engagement activation latch has been released, the electric actuator moving to the engaged position will cause the locking bar actuation plate to move to the engaged position. In preferred embodiments of the invention with a locking bar actuation plate spring bias towards the engaged position, whereby operating the electrically operated actuation mechanism will cause the locking bar actuation plate to move to the disengaged position against the engagement bias of the spring.

In preferred embodiments of the invention with a locking bar actuation plate spring bias towards the engaged position, the electrically operated actuation mechanism will cause the locking bar actuation plate to move to the engaged position if the electric actuator is extended and the spring bias does not cause the locking bar actuation plate to move to the engaged position after the lock release latch has been released.

In preferred embodiments of the invention with a locking bar actuation plate spring bias towards the engaged position, by operating the internal manual control mechanism by depressing the internal lever, will cause the locking bar actuation plate to move to the disengaged position.

In preferred embodiments of the invention with a locking bar actuation plate spring bias towards the engaged position, by operating the external manual control mechanism by depressing the external lever after the external key mechanism has been operated to disengage the locking bar actuation plate control latch, will cause the locking bar actuation plate to move to the disengaged position.

In preferred embodiments of the invention with a locking bar actuation plate spring bias towards the engaged position, In circumstances where the locking bar actuation plate does not move to the engaged position under the influence of the biasing spring when the locking bar retraction plate control latch or any other device is not preventing the locking bar actuation plate moving to the engaged position, by operating the internal or external manual control mechanism by raising the associated levers, the manual control mechanisms will cause the locking bar actuation plate to move to the engaged position.

In preferred embodiments of the invention with a locking bar actuation plate spring bias towards the engaged position, the device includes a locking bar actuation plate retraction latch disengagement mechanism, whereby in

circumstances where the locking bars are in the extended position and the locking bar actuation plate is prevented from moving to the engaged position by the locking bar actuation plate retraction latch being in an engaged position with the electric actuators movable surface, closing the door operates the locking bar actuation plate retraction latch disengagement mechanism to move the locking bar actuation plate retraction latch to a position so that said latch is not in engagement with the electric actuators movable surface so that the biasing spring causes the locking bar actuation plate to move to the engaged position.

In preferred embodiments of the invention A cover plate to form an enclosure with the chassis plate that houses the locks multipoint components, mechanisms and assemblies, whereby the cover is not affixed to the chassis plate.

Description of the Drawings

The first aspect of the invention functions are explained in the following descriptions, where the reference numbers refer to like parts; Referring to figures described in the accompanying diagrams;

1 . Chassis plate

2. locking bar mechanisms

3. locking bars

4. locking bar actuation plate

5. locking bar roller operating slots

6. electric actuation mechanism

7. internal manual operating mechanism

8. internal control lever

9. key operated control mechanism

10. external manual operating mechanism

1 1 . external control lever

12. locking bar actuation plate control latch

13. locking bar actuation plate control latch pivot point

14. locking bar actuation plate control latch return spring

15. actuation load limiting mechanism

16. load transfer plate

17. engagement load transfer surfaces

18. disengagement load transfer surface

19. load limiting spring

20. release gate mechanism

21 . release gate mechanism pivot point

22. release gate return spring

23. locking bar actuation plate retraction latch

24. locking bar actuation plate retraction latch pivot point

25. return spring

26. retraction latch catch

27. retraction latch catch pivot point 28. secondary mechanical latching point

29. deadlocking block

30. locking bar mechanism housing

31 . locking bar actuation plate alignment blocks

32. locking bar actuation plate operating spring

33. locking bar operating roller

34. Electric actuator's moveable surface

35. locking bar actuation plate control latch roller

36. release gate mechanism control block

37. Retraction2 latch disengagement roller

38. Internal lever primary roller

39. Internal lever secondary roller

40. External lever primary roller

41 . Manual release trigger mechanism operating plate

42. Manual release trigger mechanism

43. A security door or barrier to which the multipoint deadlock is affixed

Description Of The First Aspect Of The Invention.

Figure 1 , is a plan view of the first aspect of the invention with two locking bar mechanisms 2, the locking bar actuation plate 4 in the engaged position, the locking bars 3 in the extended position, the deadlocking block 29 is in a position behind the locking bar 3 and said deadlocking block is positioned within the recess in the locking bar mechanism housing, the electric actuator 6 with the operating rod extended and the moveable surface 34 engaged with the locking bar actuation plate control latch 12, the retraction latch plate 23 is in the position to engage with the movable surface when said surface is retracting, and the retraction latch catch is not engaged with the retraction latch plate.

Figure 2, is a plan view of the first aspect of the invention with two locking bar mechanisms 2, the locking bar actuation plate 4 in the disengaged position, the locking bars 3 are in the retracted position, the deadlocking block 29 is in not in a position behind the locking bar 3 and said deadlocking block is not positioned within the recess in the locking bar mechanism housing, the electric actuator 6 with the operating rod retracted and the moveable surface 34 is disengaged from the locking bar actuation plate control latch 12, the retraction latch plate 23 is in the position to not engage with the movable surface 34 when said surface is retracting, and the retraction latch catch is engaged with the retraction latch plate.

Figure 3, is a plan view of part of the first aspect of the invention where the locking bar actuation plate 4 is in the disengaged position and the locking bar 3 is in the retracted position, the electric actuator 6 with the operating rod retracted and the moveable surface 34 engaged with the locking bar actuation plate control latch 12, the retraction latch plate 23 is not engaged with the movable surface 34.

Figure 4, is a plan view of part of the first aspect of the invention where the locking bar actuation plate 4 is moving towards the engaged position, the deadlocking block 29 is not engaged with the locking bar housing 33 or in a position behind the locking bar 5, which is moving to the extended position shown in figure 1

Figure 5, is a plan view of part of the first aspect of the invention where the locking bar actuation plate 4 is moving towards the engaged position, the deadlocking block 29 is engaged with the locking bar housing 33. The

deadlocking block 29 is not in a position behind the locking bar 5, which is in the fully extended.

Figure 6, is a plan view of part of the first aspect of the invention where the locking bar actuation plate 4 is in the fully engaged position, the deadlocking block 29 is engaged with the locking bar housing 33, and the deadlocking block 29 is in a position behind the locking bar 5, which is in the fully extended .

Figure 7 is an end elevation sowing the first aspect of the invention with the lock chassis 1 affixed to the inside (or secure side) of a door or barrier.

Referring to (Figure 1 )

A multipoint deadlocking device (Figure 1 ) where the electric actuator 6 is controlled by controlling electrical power to the electric actuator motor. The multipoint deadlock (Figure 1 ) includes two locking bar mechanisms 2 affixed to the lock chassis plate 1 . The locking bar mechanisms 2 include the locking bar mechanism housing 30, and the locking bars 3, shown in the extended position; as to engage with the associated catch (not shown). The locking bar mechanism 2 also includes the locking bar operating roller 33 that is attached to the locking bar 3, and the two locking bar actuation plate alignment blocks 31 , that locate the locking bar actuation plate within the locking bar mechanism housing 30.

Referring to (Figure 1 ) the locking bar actuation plate 4 is in the engaged position, whereby the locking bar roller operating slot 5 has caused the locking bar operating roller 33 and the locking bar 3 to move to the extended position. The deadlock block 29 that is attached to the locking bar actuation plate 4 is also moved a portion of the deadlocking block into position behind the locking bar 3, and a portion of the deadlocking block remains located within the recess in the locking bar mechanism housing 30.

Again referring to (Figure 1 ) the electric linear actuator 6 is in the extended position where the moveable surface 34 is in engagement with the locking bar actuation plate control latch 12. The biasing spring 32 provides a constant load to the locking bar actuation plate 4 to cause the said plate to move to the

disengaged position shown in (Figure 2) when the locking bar actuation plate control latch 12 is disengaged from the electric actuator's moveable surface 34.

When the multipoint deadlock residing in the engaged position (Figure 1 ) is electrically operated to cause the locking bars 3 to retract as shown in (Figure 2), the following will happen. Electric power is applied to the electric actuator 6 to cause the electric actuator's moveable surface 34 shown in the extended position in (Figure 1 ) to move the moveable surface 34 towards the retracted position shown in (Figure 2), and thereby cause the locking bar actuation plate 4 in (Figure 1 ) to move towards the disengaged position shown in (Figure 2), and thereby cause the locking bar actuation plate control latch 12 to move to the disengaged position shown in (Figure 2)

Again referring to (Figure 1 ), as the locking bar actuation plate control latch 12 moves from engaged position to the disengaging position shown in (Figure 2), the locking bar actuation plate control latch roller 35 comes into contact with the release gate mechanism control block 36, whereby the movement of the locking bar actuation plate control latch 12 causes the locking bar actuation plate control latch roller 35 to move the locking bar actuation plate control latch away from engagement with the electric actuator's movable surface 34, and thereby allow the locking bar actuation plate operating spring 32 to move the locking bar actuation plate 4 to the disengaged position shown in (Figure 2) and thereby cause the locking bar roller operating slot 5, to cause the locking bar operating roller 33 to move the locking bar 3 to the retracted position as shown in (Figure 2).

Referring to (Figure 2), when the locking bar actuation plate control latch 12 is moved out of engagement with the electric actuator's movable surface 34 by the release gate mechanism 20, the locking bar actuation plate control latch 12 is retained in that position by the release gate mechanism control block 36 until the locking bar actuation plate control latch 12 has reached such a position that the release gate mechanism control block 36 allows the spring 14 to move the locking bar actuation plate control latch 12 into a position that when the electric actuator's movable surface 34 moves to the fully retracted position, and now by referring to (Figure 3) the spring 14 moves the locking bar actuation plate control latch 12 into the position whereby when the electric actuator's movable surface 34 moves towards the extended position, the said surface will engage with the locking bar actuation plate control latch 12.

Referring to (Figure 2), when the locking bar actuation plate 4 moves to the disengaged position, the retraction latch operating roller 37 moves the locking bar actuation plate retraction latch 23 into the position where the electric actuator's movable surface 34 moving from the retracted position to the extended position will not engage with the locking bar actuation plate retraction latch 23. The locking bar actuation plate retraction latch catch 26 holds the locking bar actuation plate retraction latch 23 in that position until the locking bar actuation plate 4 Is moved to the fully engaged position shown in (Figure 1 ) and now referring to (Figure 1 ),whereupon the locking bar actuation plate retraction latch catch 26 released the locking bar actuation plate retraction latch 23, so said latch is moved by the spring 25 into the position where the electric actuator's movable surface 34 moving to the disengaged position shown in (Figure 2) can engage with said latch and move the locking bar actuation plate 4 towards the

disengaged position as shown in (Figure 2)

When the multipoint deadlock residing in the disengaged position (Figure 2) is electrically operated to cause the locking bars 3 to extend as shown in (Figure 1 ), the following will happen.

While referring to (Figure 2), when the electric actuator 6 causes the electric actuator's movable surface 34 to move towards the extended position and come into engagement with the locking bar actuation plate control latch 12 that is attached to the locking bar actuation plate at position 13. The movement of the electric actuator's movable surface 34 will cause the locking bar actuation plate to move to the engaged position as shown in (Figure 1 ). When the electric actuator 6 moves the electric actuator's movable surface 34 to the fully extended position as shown in (Figure 1 ), the electric actuator 6 prevents the locking bar actuation plate control latch 12 and thereby the locking bar actuation plate 4 moving to the disengaged position shown in (Figure 2) and thereby moving the locking bars 3 into the retracted position shown in (Figure 2).

While referring to (Figure 1 ), when the locking bar actuation plate 4 reaches the fully engaged position, the retraction latch catch 26 disengaged from the locking bar actuation plate retraction latch 23 and allows the spring 22 to move said latch into the position where the electric actuator's movable surface 34 moving in the retraction direction can engage with the locking bar actuation plate retraction latch 23. While referring to Figure 4 and 5, when the locking bar actuation plate 4 is moving towards the engage position, and the portion of the locking bar roller operating slot 5 that is angular to the longitudinal axis of the locking bar actuation plate 4 is in engagement with the locking bar engagement roller 33, the movement of the locking bar actuation plate 4 will cause the locking bar 3 to move towards the extended position shown in (Figure 1 ). Movement of the locking bar actuation plate 4 towards the engaged position while the locking bar operating roller is engaged with the angular portion of the locking bar roller operating slot will also move the deadlocking block 29 towards the recess in the side of the locking bar mechanism housing 30, but limit the position of the deadlocking block 29 to not move into engagement with, or a position behind the locking bar 3.

Referring to figure 6 when the movement of the locking bar actuation plate 4 causes the locking bar operating roller 33 to engage with the portion of the locking bar roller operating slot 5 that is parallel with the longitudinal axis of the locking bar actuation plate 4, the further movement of the locking bar actuation plate towards the engaged position (Figure 1 ) will not cause any further movement of the locking bar 3. The further movement of locking bar actuation plate 4 to the fully engaged position will cause the deadlocking block 29 to move in to a position within the locking bar mechanism housing 30, where the deadlocking block 29 is in a position behind a portion of the locking bar 3, as well as residing in the recess of the side member of the locking bar mechanism housing 30.

The multipoint deadlock allows the locking bar 3 to be manually moved from the extended position (Figure 1 ) to the retracted position Figure 2 by operating the internal manual operating mechanism 7.

Referring to Figure 1 when the locking bars 3 are in the extended position shown in (Figure 1 ), by partially depressing the internal control lever 8 causes the internal lever secondary roller 39 to operate the manual release trigger mechanism operating plate 41 to cause the manual release trigger mechanism 42 to disengage the locking bar actuation plate control latch 12 from the electric actuator's movable surface 34 or the secondary mechanical latching point 28 to allow the locking bar actuation plate to be moved to the disengaged position by the operating spring 32 and thereby cause the locking bar 3 to move to the retracted position as shown in figure 2

Referring to Figure 1 in circumstances where the internal control lever 8 has been operated so as to cause the locking bar actuation plate control latch 12 to disengage from any latching point and the operating spring 32 does not cause the locking bar actuation plate 4 to move to the disengaged position as shown in Figure 2, by further depressing the internal control lever 8 beyond the point where it causes the locking bar actuation plate control latch 12 to disengage from any latching point, such action will cause the internal lever primary roller 38 to engage with the disengagement load transfer surface 18a of the actuation load limiting mechanism 15 and move the locking bar actuation plate 4 to the disengaged position as shown in Figure 2. The multipoint deadlock allows the locking bar 3 to be manually moved from the retracted position shown in Figure 2 to the extended position (Figure 1 ) by operating the internal manual operating mechanism 7.

With the locking bars 3 in the retracted position shown in Figure 2, by raising the internal control lever above the horizontal position will cause the internal lever primary roller 38 to engage with the engagement load transfer surface 17a of the actuation load limiting mechanism 15 and thereby move the locking bar actuation plate 4 to the engaged position shown in (Figure 1 ), and thereby move the locking bars 3 to the extended position shown in (Figure 1 ).

When the locking bars 3 are in the extended position shown (Figure 1 ) and by operating the key operated control mechanism 9 in such a manner as to cause the locking bars 3 to move to the retracted position shown in figure 2 does not cause the locking bar actuation plate 4 to move to the disengaged position, while the key operated control mechanism 9 maintains the locking bar actuation plate control latch 12 out of engagement with any latching point, by depressing the external control lever 1 1 below the horizontal will cause the external lever primary roller 40 to engage with the disengagement load transfer surface 18b of the actuation load limiting mechanism 15 and thereby move the locking bar actuation plate 4 to the disengaged position as shown in figure 2.

When the locking bars 3 are in the extended position shown (Figure 1 ) and the key operated control mechanism 9 has not been operated in such a manner as to cause the locking bars 3 to move to the retracted position shown in figure 2, by depressing the external control lever 1 1 below the horizontal, will cause the external lever primary roller 40 to engage with the disengagement load transfer surface 18b of the actuation load limiting mechanism 15 and move the load transfer plate 16 against the bias applied by the load limiting spring 19, whereby the locking bar actuation plate 4 does not move and remains in the engaged position shown in (Figure 1 ). The multipoint deadlock allows the locking bar 3 to be manually moved from the retracted position shown in Figure 2 to the extended position shown in (Figure 1 ) by operating the external manual operating mechanism 10.

With the locking bars 3 in the retracted position shown in figure 2, by raising the external control lever 1 1 above the horizontal position will cause the external lever primary roller 40 to engage with the engagement load transfer surface 18b of the actuation load limiting mechanism 15 and thereby move the locking bar actuation plate 4 to the engaged position shown in (Figure 1 ), and thereby move the locking bars 3 to the extended position shown in (Figure 1 ).

When the locking bars 3 are in the extended position shown (Figure 1 ), and the key operating mechanism 9 is in a position to not cause the locking bar actuation plate control latch to be disengaged from any latching point, operating the key operated control mechanism 9 by rotating the associated key 180 degrees, the key operated control mechanism9 will cause the manual release trigger mechanism 42 to move the locking bar actuation plate control latch 12 away from engagement with the electric actuator's movable surface 34 or the secondary mechanical latching point 28. Rotating the key to the original position will allow the locking bar actuation plate control latch 12 to engage with the electric actuator's movable surface 34 or the secondary mechanical latching point 28.

Figure 1 also shows the electric actuation mechanism 6 in the extended position and the moveable surface 34 in contact with the locking bar actuation plate control latch 12

When the lock mechanism is in the disengaged position (Figure 2) with the locking bars 3, and electric actuator 6, residing in the retracted position, and power is then applied to the lock actuator 6, the lock actuator extend and thereby engage with the locking bar actuation plate, and as the lock actuator extends to the fully extended position, the electric actuator will move the locking bar actuation plate control latch, and thereby the locking bar actuation plate to the fully engaged position.

Claims

1 . A multipoint locking device for securing a door to a surrounding doorframe, the said locking device comprising: a formed metal lock chassis plate upon which all lock components are directly or indirectly affixed;

at least one locking bar mechanism each including a locking bar mechanism housing and a locking bar member;

the locking bar housing being affixed to the lock chassis plate whereby said housing supports the locking bar member such that the locking bar member is slideably movable from a retracted position whereby said locking bar is fully located within the lock chassis plate structure, to an extended position where the locking bar member extends beyond the lock chassis plate structure to engage with a strike component so as to retain the door in the closed position and prevent it being moved relative to the doorframe, until the locking bar is moved to the retracted position.

2. A multipoint locking device according to claim 1 includes a locking bar actuation plate that is slideably affixed to the said locking bar housing and moves between the engaged position where the locking bar is in the extended position, and disengaged positions where the locking bar will be in the retracted position, and where the locking bar actuation plate slideably moves in a direction that is

perpendicular to the locking bar movement direction.

3. A multipoint locking device according to claim 1 or 2,whereby each locking bar member includes a roller attached to said locking bar, the roller being positioned to slideably move the locking bar between the latched and retracted position in response to slideable movement of the locking bar actuation plate.

4. A multipoint locking device according to any one of claims 1 to 3, whereby the said locking bar actuation plate includes a locking bar operating slot for each locking bar, wherein the locking bar operating slot provides a guide to move the the locking bar roller which permanently resides within, and wherein a portion of the slot is disposed at an angle to the movement direction of the locking bar actuation plate, and a portion of one or both ends of the said slot is made parallel to the direction of the Locking bar actuation plates movement direction

5. A multipoint locking device according to any one of claims 1 to 4, whereby when the locking bar operating roller is positioned in the angular portion of the operating slot, the slidable movement of the locking bar actuation plate from the disengaged position towards the engaged position will cause locking bar to slidably move towards the extended position, and when the slidable movement of the locking bar actuation plate is between the engaged position towards the disengaged position, the movement will cause locking bar to slidably move towards the retracted position, and when the locking bar operating roller is positioned in the portion of the operating slot that is parallel to the direction of the locking bar actuation plates movement, the slidable movement of the locking bar actuation plate will not cause the locking bar to move in either direction.

6. A multipoint locking device according to any one of claims 1 to 5, including a deadlocking block rigidly affixed to said locking bar actuation plate, so as when the locking bar actuation plate is moved to the engaged position, after the locking bar has reached the fully extended position, the deadlocking block is then moved into a position within the locking bar housing to prevent the locking bar moving to the disengaged position, while the deadlocking block remains in that position

7. A multipoint locking device according to any one of claims 1 to 6, whereby the said locking bar housing includes a recess in the housing structure to allow a portion of the deadlocking block to move into and away from a position behind the fully extended locking bar.

8. A multipoint locking device according to any one of claims 1 to 7, whereby when the locking bar actuation plate is in the engaged position at least one surface of the deadlocking block moves into alignment with at least one surface of the locking bar housing structure and thereby able to stop the slideable movement of the locking bar from the extended position to the retracted position.

9. A multipoint locking device according to any one of claims 1 to 8, including an electric actuator configured to move the locking bar actuation plate from the retracted position to the extended position or from the extended position to the retracted position.

10. A multipoint locking device according to any one of claims 1 to 9, including a manually operated actuation device to move the locking bar actuation plate from the retracted position to the extended position or from the extended position to the retracted position.

1 1 . A multipoint locking device according to any one of claims 1 to 10, including a biasing spring attached between the locking bar actuation plate and the lock chassis base plate to move the locking bar actuation plate from the retracted position to the extended position or from the extended position to the retracted position.

12. A multipoint locking device according to any one of claims 1 to1 1 , including a locking bar actuation plate control latch that is pivotally hinged to the locking bar actuation plate, and wherein the locking bar actuation control latch moves in the same plane as the locking bar actuation plate , so that when the latch plate is engaged with the associated latch point, the locking bar actuation plate will be retained in the engaged position until the said control latch is disengaged from the associated latch point, and the locking bar actuation plate is moved under the effect of an operating spring, electronically operated linear actuator, or manually operated actuation device.

13. A multipoint locking device according to claim 12, whereby the said

associated latch point is a post or roller that is permanently attached to the locking mechanism chassis plate or the said associated latch point is latching roller that is attached to the moveable end of the electric actuator.

14. A multipoint locking device according to claim 12 or 13, whereby retracting the electric actuator from the fully extended position towards the retracted position causes the locking bar actuation plate to move from the engaged position towards the disengaged position and thereby move the locking bar actuation plate control latch in the same direction.