Security door assembly

Abstract

There is provided a security door leaf assembly, comprising a leaf frame structure, having at least a top rail member, a bottom rail member, a hinge stile member and a lock stile member; at least one inner leaf panel, removably mountable to a first side of said leaf frame structure; at least one outer leaf panel, removably mountable to a second side of said leaf frame structure, that is opposite to said first side; at least one first security-upgrade liner, and at least one first upgrade cavity, formed by said leaf frame structure, said at least one inner leaf panel and said at least one outer leaf panel, accessible via said at least one inner and/or outer leaf panel and adapted to removably receive and operatively affix said at least one first security-upgrade liner; and at least one first liner mount adapted to mount said at least one first security-upgrade liner in a predetermined position within said at least one first upgrade cavity.

Claims

1. A security door leaf assembly comprising: a leaf frame structure, having at least a top rail member, a bottom rail member, a hinge stile member and a lock stile member; at least one inner leaf panel, selectively removably mountable to a first side of the leaf frame structure; at least one outer leaf panel, selectively removably mountable to a second side of the leaf frame structure, that is opposite to the first side; at least one first security liner; at least one first cavity, formed by the leaf frame structure, the at least one inner leaf panel and the at least one outer leaf panel, accessible via the at least one inner or outer leaf panel when the at least one inner or outer leaf panel is selectively removed from the leaf frame structure and adapted to receive and operatively affix the at least one first security liner; and at least one first liner mount adapted to mount the at least one first security liner in a predetermined position within the at least one first cavity.

2. The security door leaf assembly according to claim 1, wherein the liner mount is adapted to receivingly engage with and position the at least one first security liner so that it can be removably located at the predetermined location within the door leaf assembly.

3. The security door leaf assembly according to claim 1, comprising at least one second security liner, adapted to be mounted within the at least one first cavity.

4. The security door leaf assembly according to claim 3, wherein the at least one second security liner and the at least one first security liner are operatively stackable into a substantially parallel arrangement, so that both the at least one first and second security liners are mountable to the same at least one first liner mount at the predetermined position.

5. The security door leaf assembly according to claim 4, wherein the at least one first security liner and respective at least one second security liner are arranged so as to provide a predetermined interspace when mounted to the at least one first liner mount.

6. The security door leaf assembly according to claim 1, further comprising a lock mount assembly adapted to selectively mount any one of a plurality of locks.

7. The security door leaf assembly according to claim 6, wherein the lock mount assembly further comprises a security casing adapted to receive any one of the plurality of locks of different security standards.

8. The security door leaf assembly according to claim 1, further comprising any one of a cylinder guard and at least one exterior guard plate, each adapted to increase a resistivity of a lock mechanism to breach of the lock mechanism.

9. A security door system comprising: a door frame structure, having a head member, a sill member, a first jamb member and a second jamb member, adapted to be fixed to a building structure; an active security leaf assembly according to claim 1 that is hingedly mountable to the first jamb member; an inactive security leaf assembly according to claim 1 that is hingedly mountable to the second jamb member; and wherein the active security leaf assembly and the inactive security leaf assembly are adapted to interlockingly engage with each other when in a closed position.

10. The security door system according to claim 9, wherein the active security leaf assembly comprises a first interleave member provided on a vertical edge of the active security leaf assembly, the inactive security leaf assembly comprises a second interleave member provided on a corresponding vertical edge of the inactive security leaf assembly, and the first interleave member is adapted to matingly engage with the second interleave member, when the active and inactive security leaf assemblies are in a closed position.

11. The security door system according to claim 10, wherein the first interleave member is adapted to interlockingly receive at least a portion of the second interleave member.

12. The security door system according to claim 9, wherein each one of the active security door assembly and the inactive security door assembly further comprise at least one third interleave member provided on at least one horizontal edge of the active security leaf assembly and at least one horizontal edge of the inactive security leaf assembly.

13. The security door system according to claim 12, wherein the third interleave member is adapted to interlockingly engage with a corresponding guide member provided on the head member or the sill member or the first and the second jamb member of the frame structure.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Preferred embodiments of the present invention will now be described, by way of example only and not in any limitative sense, with reference to the accompanying drawings, in which:

(2) FIG. 1 shows an example of a security door system of the present invention including interlocking active and inactive door leaf assembly at (a) outside view when closed, (b) outside view when opened, and (c) inside view when closed;

(3) FIG. 2 shows a cavity portion of a security door leaf assembly with its leaf panel removed and (a) a level 3 upgrade security liner installed to the mount within the cavity, and (b) a level 4 upgrade security liner matingly stacked on top of the level 3 upgrade security liner and installed to the mount within the cavity;

(4) FIG. 3 shows a close-up partial view of the security door leaf assembly of FIG. 2 (b), showing (a) a first mount within a respective cavity of the security door leaf assembly and (b) a second mount within the cavity of the security door leaf assembly;

(5) FIG. 4 shows the security door assembly of FIG. 1 with the leaf panels removed from the active and inactive security door leaf assembly, exposing (a) level 3 upgrade security liners installed on corresponding mounts within the cavities, and (b) level 4 upgrade security liners stacked with respective level 3 upgrade security liners and installed on corresponding mounts within the cavities;

(6) FIG. 5 shows a portion of the hinge edge of the security door leaf assembly (door leaf removed) with (a) no locking dogs fitted, (b) an exploded view of locking dog being fitted to the hinge edge of the security door leaf assembly, (c) fitted locking dog to the hinge edge of the security door leaf assembly, (d) a locking dog fitted to the bolt edge of the security door leaf assembly, and (e) a locking bolt fitted to the installed locking dog;

(7) FIG. 6 shows a top or bottom view of the security door assembly of FIG. 1 (a) open active and inactive security door leaf assembly each with locking dogs fitted to the hinge edge and bolt edge of the door, (b) a close-up view of the open inactive security door leaf assembly with fitted locking dogs at the hinge edge and bolt edge of the door, and (c) a close-up view of the closed inactive security door leaf assembly with the fitted locking dogs engaged with corresponding openings of a respective frame guide member,

(8) FIG. 7 shows the first and second interleave member when the door is in an open position;

(9) FIG. 8, shows a close-up of the first and second interleave member when the door is in a closed position, so that the first and second interleave members are sealingly engaged, and

(10) FIG. 9 shows a lock mount assembly (a) open and before upgrade, (b) with a first level 4 cylinder and guard assembly bolted to the lock mount assembly, and (c) with a second level 4 cylinder and guard assembly bolted to the lock mount assembly.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT(S)

(11) The exemplary embodiments of this invention will be described in relation to a security doors and in particular a double-door security door system. However, it should be appreciated that, in general, the characteristic modular upgradability feature of the present invention will work equally well with any other security product configured to prevent a forced entry attack.

(12) Referring now to FIG. 1, a security door system 100 is shown in a closed position as seen from (a) the outside and (c) the inside, and (b) in an open position as seen from the outside (i.e. outside the premises). In this particular example embodiment, the security door system 100 is a double-door set having an active door leaf assembly 102 and an inactive door leaf assembly 104, and a frame structure 106 that comprises a head member 108, a sill member 110 and two jamb members 112 and 114. The frame structure 106 may be fitted within a rebate of a wall of a building structure (not shown). In one particular example, the frame fixings (not shown) may be located to the inside of the building structure, so that any attack would have to start with significant amounts of cutting and drilling to simply gain access to the fixings, i.e. the fixing bolts are even further removed from the attack face. Furthermore, a fascia plate (not shown) may be used at the front (outside) of the frame structure 106 to prevent access to the wall fixings and make good any potential physical deficiencies (e.g. gaps, broken brickwork and lintels) in the wall structure of the building into which the security door system 100 is being fitted.

Security Up-Grades

(13) As shown in the example embodiment illustrated in FIGS. 2, 3 and 4, each door leaf assembly 102, 104 comprises a leaf frame structure 116, an inner leaf panel 118 and outer leaf panel 120. The inner and outer leaf panels 118, 120 and the frame structure 116 form at least one cavity 122. In this particular example, a locking rail 124 is installed to the leaf frame structure 116, so as to divide the cavity 122 into two separate cavities, e.g. cavity 123 and cavity 125. However, it is understood by the person skilled in the art, that the dividing rail 124 is not an essential feature, and each door leaf assembly 102, 104 may only comprise one cavity 122. Alternatively, additional rails may be installed to form a plurality of additional cavities within the door leaf assembly 102, 104, when assembled. Furthermore, suitable liner mounts 126 are provided at the top rail member and bottom rail member of the leaf frame structure 116, as well as, both sides of the locking rail 124. It is understood that liner mounts 126 may be provided at any other suitable location of the leaf frame structure 116.

(14) In the event an upgrade is needed, e.g. from a level 2 to a level 3 or 4 (LPC 1175), suitable security liners 128, 130 may be installed within any of the formed cavities 122, 123, 125 in any one of the two door leaf assemblies 102, 104.

(15) For example, in order to upgrade a door leaf assembly 102, 104 from an initial security level 2 to a security level 3, a first security liner 128 is installed into any cavity 122, 123, 125 via corresponding mounts 126, ensuring that as the risk changes the door leaf assembly 102, 104 can counter the evolving threat. In this particular example, the first security liner 128 may be 2 mm thick steel liner that is bolted within the cavity 122, 123, 125 between the inner and outer leaf panel 118, 120. Alternatively, the security liner 128 may be fitted loosely, as long as it is captive between the inner and outer leaf panel 118, 120.

(16) To upgrade a level 3 door leaf assembly 102, 104 to a security level 4, a second security liner 130 is stackingly combined with the first liner 128 and installed to the same corresponding mounts 126. In particular, first and second security liner 128, 130 may be formed in such a way that, when installed on the same corresponding mounts 126, a predetermined interspace 132 is formed between the first and second security liner 128, 130, when in situ. Additional material (not shown, e.g. wood or any other attack specific material) may be provided within that interspace 132, i.e. sandwiched between the first and second security liner 128, 132, therefore, providing further resistance to an attack. The material of any one of the security liners 128, 132 and of the additional material may be selected, so as to be particular effective for a specific attack (i.e. tool).

Security “Dogs”

(17) Referring now to FIGS. 5 and 6, when upgrading the security door assembly 100 to level 3 or 4, horizontally acting “dogs” 134, 136 are provided on each door leaf assembly 102, 104. In this particular example embodiment, there are two “dogs” 134, 136 fitted to the top rail member and bottom rail member of the leaf frame structure 116, which act by engaging with corresponding guides 138 of the frame structure 106 when in a closed position. The “dogs” 134, 136 prevent force being applied between the door (i.e. door leaf assembly 102, 104) and the outer frame structure 106 during lever and crow-bar attacks. When installing the “dogs” during an upgrade, a first “dog” 134 is fitted to the hinge edge of the door leaf assembly 102, 104 (FIG. 5 (b), (c)) and a second, longer “dog” 136 is fitted to the bolt edge of the door leaf assembly 102, 104 (FIG. 5 (d), (e)). A locking bolt 140 may also be mounted to the bolt edge of the door leaf assembly 102 and/or 104.

(18) As mentioned above, the outer leaf panel 118, 120 is formed so as to interleave with a guide 138 of the frame structure 106 when in a closed position, making any attack significantly harder to start as there is no gap between the door leaf assemblies 102, 104 and the frame structure 106. The door leaf assemblies 102, 104 when closed also become bigger than the hole into which they fit, they do this by “wrapping” around the rear of the door frame 106 as part of particular hinge action, so any attempt to pull the doors out has to also pull the frame out of the wall.

Interleaved Door Edges

(19) Referring to FIGS. 6 (a), (b) and (c), 7 and 8, the outer leaf panel 118 of the inactive door leaf assembly 104 is formed so as to create a first interleave member 142 adapted to matingly interlock with a corresponding second interleave member 144 that is formed by outer leaf panel 118 of the active door leaf assembly 102. By interleaving the locking edge of active and inactive door leaf assembly 102, 104, any attack (e.g. by crow-bar) would result in further securing one door leaf assembly 102 or 104 to the corresponding other door leaf assembly 104 or 102, i.e. the harder an attacker tries to pry open the door 100 via the interleaved locking edges of the closed door leaf assemblies 102, 104, the harder it becomes to defeat the door 100.

Concealed Hinges

(20) In this particular example embodiment, each of the two basic level 2 security door leaf assemblies 102, 104 has two hinges 145 at an upper portion and a single hinge 145 at a lower portion of the hinge stile member of the leaf frame structure 116. When upgraded to a level 4 security door, the each of the two door leaf assemblies 102, 104 has two hinges 145 at an upper portion and two hinges 145 at a lower portion of the hinge stile member of the leaf frame structure 116. Preferably, the hinges 145 are concealed in such a way that it is not possible to attack the hinges without first attacking the outer door leaf panel 120.

Modular Locking

(21) Referring now to FIG. 9, the door leaf assemblies 102, 104 of the present invention are adapted to incorporate almost any 3.sup.rd party lock within its modular lock mount assembly 146. The lock mount assembly 146 comprises a housing (or cassette) 148 and standardised lock mounts 150, as well as, an interchangeable cylinder guard 152. FIG. 9 (b) and (c) shows two different cylinder guard upgrades installed with the lock mount assembly 146.

Example Guide and Fitting Instructions for LPC 1175 Level SR3 Upgrade

(22) This guide shows how to locally upgrade the equipment to level SR3 at the time of installation or as a retrospective upgrade.

(23) Upgrade Components:

(24) SR3 Trailing door upgrade fittings 1 qty 1502.HAA.131.1014 Liner 1 qty 1502.HAA.131.1015 Liner 12 qty M6×22 mm Self drilling and tapping screw

(25) SR3 Locking door upgrade fittings 1 qty 1502.HAA.131.1034 Liner 1 qty 1502.HAA.131.1035 Liner 10 qty M6×22 mm Self drilling and tapping screw

(26) SR3 Lock upgrade 1 qty SR4 Lock assembly 4 qty M8×20 mm C/S Allen
Pre-Fitting Checks:

(27) Verify the Site Survey Report details and measure the door sizes at the site and compare to the size specified on the upgrade kit. If the parts are NOT intended for the site abort the session.

(28) Preparation:

(29) Release the two sprung bolts and un-bolt them from the doors. Un-bolt and remove the SR2 lock assembly.

(30) Remove the Inner Leaf Panel:

(31) Remove the M6 Flanged bolts that hold the inner leaf panel to the door and store them safely in a container for re-fitting later. The door has to be open to do this as the bolts are partially shrouded by the frame and the trailing edge overlap profile.

(32) Remove the Door Lock:

(33) Remove the M8 C/S bolts that hold the lock to the door and store them safely in a container for re-fitting later.

(34) Remove the Inner Leaf:

(35) Remove the M6 Flanged bolts that hold the inner leaf panel to the door and store them safely in a container for re-fitting later. The door has to be open to do this as the bolts are partially shrouded by the frame and the trailing edge overlap profile.

(36) Door Liner Installation:

(37) Fit the security liners into the door cavity as shown in FIGS. 2, 3 and 4. Then using a power drill with a suitable drive socket, drive the self drilling and self tapping fixing bolts into the box sections (top and bottom) as shown above. Fix the dog to the door outer leaf panel with the M8 C/S screw and then fit the M8 Cap bolt and washer then tighten them fully to retain the dog in place.

(38) Repeat this at the top of the door and check that the door opens and closes properly with the dogs locating correctly into the recesses in the top and bottom frame overlaps. DMDE liners are each fitted with six bolts whereas DADE liners are fitted with five bolts each.

(39) Re-Fitting Inner Door Leaves:

(40) Start by fitting the inner leaf onto the fixed door and fix it in place with the flanged button head screws that were set aside earlier. Then, re-fit the two spring bolt units with the spring washers and cap screws. Check that the door opens and closes properly and that the spring bolts fit into the frame correctly to secure the door. Next fit the inner leaf panel onto the access door and fix this in-place with the original flanged button head screws.

(41) Fitting the SR4 Lock:

(42) Offer-up the SR4 lock assembly to the door making sure that the cylinder tang enters the lock drive-shaft. Finally locate the lock assembly into the lock guard assembly and fix in place with the four M8×16 mm screws provided. Test the operation of the doors and make sure that the lock operates properly from both inside and outside faces of the door. Check the operation of the lock with the door open and closed.

Example Guide and Fitting Instructions for LPC 1175 Level SR4 Upgrade

(43) This guide shows how to locally upgrade the equipment to level SR3 at the time of installation or as a retrospective upgrade.

(44) Upgrade Components:

(45) SR4 door upgrade fittings 1 qty 1502.HAA.131.1027 Liner 1 qty 1502.HAA.131.1028 Liner 1 qty 1502.HAA.131.1032 Liner 1 qty 1502.HAA.131.1033 Liner

(46) SR4 Lock upgrade fittings 1 qty 1507.HAA.114.1004 SR4 Cylinder assy 1 qty 1509.HAA.114.1005 SR4 Lock keep 1 qty 1509.HAA.134.1006 SR4 Lock guard plate 6 qty CTL-646-4116M M16 Form B 4 qty CTL-630-0254E M16×40 Hex set 4 qty CTL-604-2072E M8×16 C/S Allen

(47) SR4 DMDE Dog upgrade fittings 6 qty 1502.HAA.131.1025 Short dog 2 qty 1502.HAA.131.1026 Long dog 8 qty QFT-604-2074G M8×20 mm C/S Allen 8 qty QFT-600-1008N M8×20 mm Cap Allen 8 qty CTL-645-2014P M8 Repair washers

(48) SR4 Hinge upgrade fittings 2 qty 1502.HAA.122.1005 Hinge assemblies 2 qty 1501.HAA.132.1029 Hinge clamp plate 8 qty QFT-604-2074G M8×20 mm C/S Allen 10 qty QFT-600-1008N M8×20 mm Cap Allen 10 qty CTL-645-1708H M8 Spring washers
Pre-Fitting Checks:

(49) Verify the Site Survey Report details and measure the door sizes at the site and compare to the size specified on the upgrade kit. If the parts are NOT intended for the site abort the session.

(50) Preparation:

(51) Release the two sprung bolts and un-bolt them from the doors. Un-bolt and remove the SR2 lock assembly.

(52) Remove the Inner Leaf Panel:

(53) Remove the M6 Flanged bolts that hold the inner leaf panel to the door and store them safely in a container for re-fitting later. The door has to be open to do this as the bolts are partially shrouded by the frame and the trailing edge overlap profile.

(54) Remove the Door Lock;

(55) Remove the M8 C/S bolts that hold the lock to the door and store them safely in a container for re-fitting later. The door has to be open to do this as the lock has to slide towards the door edge to release it from the mounting bracket and the trailing door edge will prevent this if the trailing door is closed.

(56) Remove the Inner Leaf;

(57) Remove the M6 Flanged bolts that hold the inner leaf to the door and store them safely in a container for re-fitting later. The door has to be open to do this as the bolts are partially shrouded by the frame and the trailing edge overlap profile.

(58) Hinge Installation (Repeat for BOTH Doors):

(59) 1 qty 1502.HAA.101.1014 SR4 Upgrade kit

(60) Remove the M8 screws securing the bottom hinge to the frame and support or jack the bottom of the door away from the frame to create a gap through which the hinge can be fitted. Fix the hinge loosely to the door using the M8 cap bolts and washers then fix the hinge to the frame using the M8 C/S bolts, fully tighten these bolts. Replace the C/S bolts to hold the bottom hinge in-place then return to the cap bolts in the new hinge and tighten them fully.

(61) Short Dog Installation;

(62) SR4 Short Dog upgrade

(63) Slide the dog into position in the hinge area of the door as shown in the call-out above making sure that the end of the dog with the chamfer mates to the inside face of the outer door leaf. Fix the dog to the door outer leaf with the M8 C/S screw and then fit the M8 Cap bolt and washer then tighten them fully to retain the dog in place. Repeat this at the top of the door to complete the second fixing.

(64) Long Dog Installation;

(65) SR4 Long Dog upgrade

(66) Slide the long dog into position in the inactive door making sure that the end of the dog with the chamfer mates to the inside face of the outer door leaf. Fix the dog to the door outer leaf with the M8 C/S screw and then fit the M8 Cap bolt and washer then tighten them fully to retain the dog in place.

(67) Long Dog Installation;

(68) SR4 Short Dog upgrade

(69) Slide the short dog into position in the inactive door making sure that the end of the dog with the chamfer mates to the inside face of the outer door leaf. Fix the dog to the door outer leaf with the M8 C/S screw and then fit the M8 Cap bolt and washer then tighten them fully to retain the dog in place.

(70) Door Liner Installation;

(71) Level 4 Door upgrade liners

(72) Slacken the bolts in each level 3 security liner then place the level 4 security liner into the level 3 security liner. Next fix the liners in place with the mounting screws.

(73) Cylinder Guard Removal;

(74) Remove the SR2/3 cylinder and guard from the housing by un-bolting the nyloc nuts.

(75) SR4 Cylinder Guard Installation;

(76) Level 4 Door cylinder guard

(77) Fit the SR4 cylinder guard clamping the cylinder guard in-place using the clamp plate and the new M8 spring clips and Nyloc nuts. Complete the assembly by fitting the rear guard plate fixing it in place with the M6 C/S bolts provided with the cylinder guard.

(78) Re-Fitting Inner Leaves;

(79) Start by fitting the inner leaf panel onto the fixed door and fix it in place with the flanged button head screws that were set aside earlier. Then, re-fit the two spring bolt units with the spring washers and cap screws. Check that the door opens and closes properly and that the spring bolts fit into the frame correctly to secure the door. Finally fit the inner leaf panel onto the access door and fix this in-place with the original flanged button head screws.

(80) Fitting the SR4 Lock-Guard:

(81) Start by removing the M6 Allen bolt shown and fit the guard, loosely refit the M6 screw then fit two M16 washers and an M16 bolt to the top mounting hole and repeat this in the bottom hole. Locate one of each pair of washers behind the guard plate and the other in front of the guard plate to form a sandwich. Tighten the bolts to hold the guard panel in-place.

(82) Fitting the SR4 Lock Keep:

(83) Fix the keep to the fixed door overlap edge using the M8×16 mm C/S bolts provided. Do not fully tighten these bolts yet. Now fit the M16 bolts and washers to hold the assembly to the inside face of the door as shown. Now tighten all of the bolts fully.

(84) Fitting the SR4 Lock:

(85) Fit the lock assembly to the door using the M8×16 mm C/S bolts provided. Fully tighten the bolts. Now check the operation of the lock with the door in the open position, if satisfactory now repeat the tests on the lock with the door in the closed and secure position. The lock blade should slide easily into and out of position in the door keep on the passive leaf.

(86) It is important that the design features that allow the leafs and security liners to become removable and/or interchangeable must be accomplished in a way that does not reduce the resilience of the door structure to an attack at existing levels and still allows the removable element to be upgraded as well to support a future element.

(87) So for example:

(88) SR1: The leaf design only requires 16 off 4 mm aluminium rivets to hold the inner leaf in-place to provide compliant resistance to attacks at SR1 severity. The design of where to place those rivets is the trick. We place them in alternate holes that are pre-drilled in the edges of the door leaf to provide: A more aesthetically appealing product These edges also have the benefit of not being accessible when the door(s) are closed Forces applied during an attack cannot simply ‘pull-out’ the rivets they have to be sheared as the attack forces can only be applied in the shearing direction.

(89) SR2: The leaf design only requires 32 off 4 mm aluminium rivets to hold the inner leaf in-place to provide compliant resistance to attacks at SR2 severity. The design of where to place those rivets is the trick. We place the original 16 in the previously used alternate holes and then we fit the extra 16 rivets in alternate holes that were previously unused. All holes are pre-drilled in the edges of the door leaf to retain the previously described benefits.

(90) SR3: Once any other up-grade elements are fitted the 32 off 4 mm aluminium rivets holding the inner leaf in-place are replaced with 5 mm equivalents provide compliant resistance to attacks at SR3 severity. The design will further support the use of even larger rivets or the use of stainless steel rivets should the perceived threat demand their use:

(91) The fundamental feature of this design is that the rivets are never accessible to an attacker within the scope of each attack. An increase in size or use of alternate material is therefore the only incremental change required to address the need for future improved security. This is effective as the forces are restricted to the shear orientation.

(92) It will be appreciated by persons skilled in the art that the above embodiment(s) have been described by way of example only and not in any limitative sense, and that various alterations and modifications are possible without departing from the scope of the invention as defined by the appended claims.