EP2336464A1 - Locking mechanism - Google Patents
Locking mechanism Download PDFInfo
- Publication number
- EP2336464A1 EP2336464A1 EP09179405A EP09179405A EP2336464A1 EP 2336464 A1 EP2336464 A1 EP 2336464A1 EP 09179405 A EP09179405 A EP 09179405A EP 09179405 A EP09179405 A EP 09179405A EP 2336464 A1 EP2336464 A1 EP 2336464A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- locking
- retraction
- actuation
- movement
- locking mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
- E05B65/0075—Locks or fastenings for special use for safes, strongrooms, vaults, fire-resisting cabinets or the like
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B63/00—Locks or fastenings with special structural characteristics
- E05B63/0065—Operating modes; Transformable to different operating modes
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B17/00—Accessories in connection with locks
- E05B17/20—Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
- E05B17/2084—Means to prevent forced opening by attack, tampering or jimmying
Definitions
- the present invention relates to a locking mechanism for a security assembly comprising a frame and at least one door, and relates particularly, but not exclusively, to a locking mechanism for a security assembly that is used to protect cash cassettes in automated teller machines (ATMs).
- ATMs automated teller machines
- Automated teller machines generally comprise a terminal having a keypad, card slot, screen and cash dispenser.
- the rear of an ATM comprises a rack having a plurality of mounts in which cash cassettes are inserted in order to supply the ATM with bank notes.
- the cash cassettes are generally protected by one or more reinforced doors.
- a security assembly for protecting the cash cassettes of an ATM is proposed in W02008/145961 , which is hereby incorporated by reference.
- an ATM 2 comprises a housing 4 and a reinforced outer door 6 having a locking mechanism 8.
- the ATM 2 comprises four cash compartments 10 in which cash cassettes (not shown) containing bank notes can be mounted in order to supply the ATM 2 with cash to be dispensed.
- a security assembly comprising a frame member 12 and a plurality of doors 14 is mountable inside the housing 4 of the ATM 2. The security assembly can be welded to the inside of the ATM.
- Figure 1 shows all of the doors 14 in the open condition permitting access to all of the compartments for holding cash cassettes.
- Figure 2 shows all of the doors 14 in the locked condition preventing access to compartments 10 and
- Figure 3 shows one of the doors 14 in the open condition allowing access to one of the compartments 10.
- Each of doors 14 is independently lockable to permit access to only one compartment 10 at a time such that if service personnel who refill the ATM 2 are attacked, the attacker will only initially be able to access a single compartment 10 and therefore a single cash cassette which will increase the time taken for the thief to gain access to the further cash cassette.
- each door 14 is attached to the frame member 12 by a hinge 16.
- a barrier member 18 is mounted to the door 14 by two pivoting brackets 20.
- the barrier members 18 When in the locked condition, the barrier members 18 extend substantially along the whole length of one or more sides of the periphery of the door to prevent access through the gaps between the periphery of the doors and the frame.
- the barrier members in the locked condition are received in a recess in the adjacent door or portion of frame.
- the barrier members may be received in a bracket (not shown) attached to an adjacent door or portion of frame.
- the barrier members 18 are moved by engagement with a locking member 22.
- the locking members 22 are slideably mounted to the frame 12 and are actuated by a locking mechanism which will be described in further detail below. In Figures 4 and 5 , the locking members 22 move from a leftward retracted condition to a rightward engaged condition and prevent access through the boundary between the frame and the doors.
- each of the locking members 22 associated with the door 14 is moved rightwardly in the direction of Arrow A into the engaged condition.
- Each locking member 22 is moveable independently of the other locking member in order to allow each individual door 14 to be independently lockable.
- barrier member 18 projects into a recess (not shown) formed in one of the other doors 18 or in the frame member in order to lock the door 14 in the closed condition preventing access to the cash container in front of which the door 14 is located.
- a preferred embodiment of the present invention seeks to provide a locking mechanism operable to move locking members 22 or other locks, the locking mechanism being resistant to drilling and other attacks which are commonly associated with unauthorised persons attempting to gain access to the cash contained in ATMs.
- a locking mechanism for a security assembly comprising a frame assembly and at least one door, wherein at least one said door has an open condition and a closed condition in which the door is lockable to the frame assembly to prevent opening of the door, the locking mechanism comprising:
- the locking mechanism further comprises interconnection means arrange to selectively interconnect at least one said locking member to the actuation member, such that in a first condition of the interconnection means, movement of the actuation member causes movement of at least one said locking member, and in a second condition of the interconnection means, movement of the actuation member does not cause movement of at least one said locking member.
- This provides the advantage of enabling the door to be locked in the closed condition even if the actuation member is moved. This is advantageous because a single actuation member can be used to selectively open one or more of the doors of an assembly having a plurality doors.
- the interconnection means comprises:
- a third surface of said retraction member may face the first surface of the actuation member such that the actuation member and retraction member are arranged in a substantially overlapping configuration.
- This provides the advantage of causing a hole drilled in the locking mechanism to become misaligned if any of the components are moved.
- the locking mechanism further comprises a pivot mechanism arranged to cause the retraction member to move along the second path in response to movement of the actuation member along the first path, the pivot mechanism comprising:
- the guide means comprises a mounting plate arranged between the actuation member and retraction member.
- This provides the advantage of further increasing the difficulty of gaining access to the locking mechanism by providing a further layer of material which must be drilled through, the further layer of material also acting as guide means for the pivot mechanism.
- the interconnection member comprises a dowel member arranged to be moveable in a longitudinal slot formed in at least one said locking member and wherein the retraction member comprises a substantially L-shaped slot, the dowel member projecting into and being moveable in said substantially L-shaped slot such that in a first position of the dowel member, movement of the retraction member causes movement of the corresponding locking member through engagement of the dowel member with a first leg of the L-shaped slot, and in a second position of the dowel member, movement of the retraction member results in sliding movement of the dowel member in a second leg of the L-shaped slot such that the locking member remains stationary.
- This provides a relatively straightforward method of enabling the locking members to be selectively coupled to the retraction member in order to enable selective opening of the doors of the security assembly.
- the dowel member when the dowel member is in the second position, the dowel member engages with a locking member retention member to prevent the locking member from being moved.
- the locking mechanism further comprises a plurality of dowel members arranged to project through a corresponding plurality of longitudinal and L-shaped slots, wherein said plurality of dowel members are mounted to a selector member.
- the locking mechanism further comprises a housing having a front panel accessible to a user, wherein the actuation member is located inside of the housing and adjacent a rear surface of the front panel, and wherein at least one said locking member is located behind the actuation member at a greater distance from the front panel than the actuation member.
- the retraction member may be located between the actuation member and at least one said locking member.
- the locking mechanism may further comprise a handle assembly arranged to cause movement of the actuation member back and forth along said first path, the handle assembly comprising:
- the actuation member, retraction member, locking member retention member and at least one said locking member may be formed from a plurality of metal plates.
- This provides the advantage that if a hole is drilled into the locking mechanism, there is less likelihood of disabling the locking mechanism because other portions of the metal plate will still be able to operate the locking mechanism. This also provides the advantage of a sturdy and layered assembly.
- Said plurality of metal plates may be arranged in an overlapping and substantially parallel configuration.
- Said first and second paths may be substantially perpendicular first and second longitudinal axes.
- a locking mechanism 100 comprises a plurality of locking members 22 corresponding to those shown in Figures 4 to 7 .
- the locking mechanism 100 is arranged to selectively retract one or more of the locking members 22 to the left of axis X in Figure 8 .
- An actuation member 102 is arranged to move up and down along axis Y in response to rotation of a handle 108 ( Figure 10 ). If one or more of locking members 22 is interconnected with actuation member 102 by an interconnection means, which will be explained in more detail below, movement of actuation member 102 upwardly along axis Y causes the retraction of the selected locking members 22 to the left of axis X.
- actuation member 102 comprises four metal plates 102a to 102d which are rigidly interconnected to one another by means of welding or the like.
- the locking mechanism is assembled in an outer housing 104 having a front panel 106. Housing 104 is also shown in Figure 5 .
- Actuation member 102 is arranged to reciprocate in response to rotation of handle 108.
- Handle 108 is connected to and arranged to rotate a cam member 110.
- Cam follower portion 102b of the actuation member 102 surrounds the cam member 110 and is arranged to be reciprocated along axis Y in response to rotation of cam member 110.
- a pivot mechanism comprises a link member such as a quadrant plate 112 disposed at each end of the actuation member 102.
- Link member 112 is rotatably mounted to each end of the actuation member about pin 114.
- Each link member 112 is pivotally mounted to a guide means such as a mounting plate 116 ( Figures 8 and 12 ) about pivot pin P.
- a retraction member pin 118 formed on each link member 112 projects through arcuate slots 120 formed in mounting plate 116.
- retraction member 122 is slidably mounted on a rear side of mounting plate 116.
- Retraction member pins 118 are disposed in corresponding apertures 124 such that movement of retraction member pins 118 through arcuate slots 120 in the direction of rotation R ( Figure 12 ), in response to movement of the actuation member 102 along axis Y, moves the retraction member 122 downwardly along axis X in Figure 13 , relative to the mounting plate 116, which remains stationary.
- locking members 22 are selectively interconnected with the retraction member 122 by an interconnection means.
- Retraction member 122 is always moved in response to movement of the actuation member 102.
- locking members 22 are only moved by retraction member 122 if the interconnection means, which will be described in further detail below, interconnects a locking member 22 with the retraction member 122.
- a third, or forward facing, surface of the retraction member 122 faces the first, or rearward facing, surface 102R of the actuation member 102 such that the actuation member and retraction member are arranged in a substantially overlapping configuration.
- the interconnection means comprises an interconnection member 130 such as a dowel member which is arranged to project through elongated slots 132 formed in the locking members 22 and also project through substantially L-shaped slots 134 formed in the retraction member 122.
- Two dowel members 130 are interconnected by a selector member such as selector plate 136.
- Figures 15 and 16 show an uppermost locking member 22U. In the lower position of selector plate 136 and therefore dowel member 130, as shown in Figure 16 , the locking member 22 is not selected and therefore when the retraction member 122 is retracted along axis X in the direction shown by the arrow in Figure 16 , the locking member 22 remains stationery, and is locked to the housing in a manner that will be explained below.
- a locking member retention member such as plate 140 comprises two retention slots 142 each having an L-shaped configuration. Locking member retention plate is securely fastened to the locking mechanism housing.
- dowel members 130 engage notches 142a of retention slots 142 and the locking members therefore cannot be retracted.
- dowel members are free to retract in leg portions 142b of retention slots 142 such that the locking members 22 can be retracted.
- Figures 15 to 18 show two dowel members 130 connected by a selector plate 136, although the mechanism would also work with a single dowel member 130 for each locking member 22.
- the dowel members 130 and selector plate 136 are arranged to be raised by a selector mechanism (not shown).
- One example of the selector mechanism comprises an electric motor arranged to operate a worm gear and pinion mechanism in order to move the dowel members 130 and selector plate 136 in the direction of Arrow Y ( Figure 16 ) to the uppermost position.
- Arrow Y Figure 16
- dowel members 130 are raised into the upper portions 134U of the L-shaped slots 134, then the dowel member 130 engages a closed edge of L-shaped slot 134 such that retraction of the retraction member 122 causes retraction of the locking member 22.
- actuation member 102 moves along axis Y and the retraction member 122 and locking members 22 move along axis X which is perpendicular to axis Y.
- axes X and Y do not need to be straight, i.e. they could be curved, or do not need to be perpendicular.
- the components are formed from metallic plates which means that if a hole is drilled through the locking mechanism, it is less likely that any of the parts will break or snap.
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Abstract
A locking mechanism 100 comprises a plurality of locking members 22. The locking mechanism 100 is arranged to selectively retract one or more of the locking members 22 to the left of axis X. An actuation member 102 is arranged to move up and down along axis Y in response to rotation of a handle. If one or more of locking members 22 is interconnected with actuation member 102 by an interconnection means, movement of actuation member 102 upwardly along axis Y causes the retraction of the selected locking members 22 to the left of axis X. A first, or rear, surface of the actuation member 102 faces a second, or forwardly facing, surface of the locking members 22 such that the actuation member 102 and locking members 22 are arranged in a substantially overlapping configuration.
Description
- The present invention relates to a locking mechanism for a security assembly comprising a frame and at least one door, and relates particularly, but not exclusively, to a locking mechanism for a security assembly that is used to protect cash cassettes in automated teller machines (ATMs).
- Automated teller machines (ATMs) generally comprise a terminal having a keypad, card slot, screen and cash dispenser. The rear of an ATM comprises a rack having a plurality of mounts in which cash cassettes are inserted in order to supply the ATM with bank notes. The cash cassettes are generally protected by one or more reinforced doors. A security assembly for protecting the cash cassettes of an ATM is proposed in
W02008/145961 , which is hereby incorporated by reference. - Referring to
Figures 1 to 7 , which show the security assembly ofWO2008/145961 , anATM 2 comprises ahousing 4 and a reinforcedouter door 6 having alocking mechanism 8. TheATM 2 comprises fourcash compartments 10 in which cash cassettes (not shown) containing bank notes can be mounted in order to supply theATM 2 with cash to be dispensed. A security assembly comprising aframe member 12 and a plurality ofdoors 14 is mountable inside thehousing 4 of theATM 2. The security assembly can be welded to the inside of the ATM. -
Figure 1 shows all of thedoors 14 in the open condition permitting access to all of the compartments for holding cash cassettes.Figure 2 shows all of thedoors 14 in the locked condition preventing access tocompartments 10 andFigure 3 shows one of thedoors 14 in the open condition allowing access to one of thecompartments 10. Each ofdoors 14 is independently lockable to permit access to only onecompartment 10 at a time such that if service personnel who refill theATM 2 are attacked, the attacker will only initially be able to access asingle compartment 10 and therefore a single cash cassette which will increase the time taken for the thief to gain access to the further cash cassette. - Referring to
Figures 4 and5 , eachdoor 14 is attached to theframe member 12 by ahinge 16. Abarrier member 18 is mounted to thedoor 14 by two pivotingbrackets 20. When in the locked condition, thebarrier members 18 extend substantially along the whole length of one or more sides of the periphery of the door to prevent access through the gaps between the periphery of the doors and the frame. The barrier members in the locked condition are received in a recess in the adjacent door or portion of frame. Alternatively, the barrier members may be received in a bracket (not shown) attached to an adjacent door or portion of frame. - The
barrier members 18 are moved by engagement with alocking member 22. Thelocking members 22 are slideably mounted to theframe 12 and are actuated by a locking mechanism which will be described in further detail below. InFigures 4 and5 , thelocking members 22 move from a leftward retracted condition to a rightward engaged condition and prevent access through the boundary between the frame and the doors. - Referring to
Figure 6 , in order to lock adoor 14, each of thelocking members 22 associated with thedoor 14 is moved rightwardly in the direction of Arrow A into the engaged condition. Eachlocking member 22 is moveable independently of the other locking member in order to allow eachindividual door 14 to be independently lockable. - Referring to
Figure 7 , as thelocking members 22 move in the direction of Arrow A into the engaged condition, theuppermost locking member 22 abuts the left hand edge ofbarrier member 18 causing mountingbracket 20 pivot in the direction of Arrow B andbarrier member 18 to move in the direction of Arrow C into the locked condition. In the locked condition,barrier member 18 projects into a recess (not shown) formed in one of theother doors 18 or in the frame member in order to lock thedoor 14 in the closed condition preventing access to the cash container in front of which thedoor 14 is located. - A preferred embodiment of the present invention seeks to provide a locking mechanism operable to move locking
members 22 or other locks, the locking mechanism being resistant to drilling and other attacks which are commonly associated with unauthorised persons attempting to gain access to the cash contained in ATMs. - According to the present invention, there is provided a locking mechanism for a security assembly comprising a frame assembly and at least one door, wherein at least one said door has an open condition and a closed condition in which the door is lockable to the frame assembly to prevent opening of the door, the locking mechanism comprising:
- an actuation member moveable along a first path by a user; and
- at least one locking member movable along a second path, different to the first path, in response to movement of the actuation member, at least one said locking member having an engaged condition in which the at least one said locking member is engageable with a door in use to prevent opening of the door, and a retracted condition enabling opening of the door;
- This provides the advantage that if a hole is drilled in the locking mechanism in an attempt to obtain access to the internal components of the locking mechanism, moving either the actuation member or at least one locking member causes the drilled hole to become misaligned because the actuation member and locking members move along different paths and are arranged in a substantially overlapping configuration. Consequently, this makes it more difficult to release the locking mechanism by using a drilling attack.
- In a preferred embodiment, the locking mechanism further comprises interconnection means arrange to selectively interconnect at least one said locking member to the actuation member, such that in a first condition of the interconnection means, movement of the actuation member causes movement of at least one said locking member, and in a second condition of the interconnection means, movement of the actuation member does not cause movement of at least one said locking member.
- This provides the advantage of enabling the door to be locked in the closed condition even if the actuation member is moved. This is advantageous because a single actuation member can be used to selectively open one or more of the doors of an assembly having a plurality doors.
- In a preferred embodiment, the interconnection means comprises:
- a retraction member movable along the second path in response to movement of the actuation member; and
- an interconnection member arranged to selectively interconnect at least one said locking member with the retraction member such that in an interconnected condition, retraction of the retraction member in response to movement of the actuation member causes at least one said locking member to move from the engaged condition to the retracted condition.
- A third surface of said retraction member may face the first surface of the actuation member such that the actuation member and retraction member are arranged in a substantially overlapping configuration.
- This provides the advantage of causing a hole drilled in the locking mechanism to become misaligned if any of the components are moved.
- In a preferred embodiment, the locking mechanism further comprises a pivot mechanism arranged to cause the retraction member to move along the second path in response to movement of the actuation member along the first path, the pivot mechanism comprising:
- a link member pivotally mounted to a guide means;
- In a preferred embodiment the guide means comprises a mounting plate arranged between the actuation member and retraction member.
- This provides the advantage of further increasing the difficulty of gaining access to the locking mechanism by providing a further layer of material which must be drilled through, the further layer of material also acting as guide means for the pivot mechanism.
- In a preferred embodiment, the interconnection member comprises a dowel member arranged to be moveable in a longitudinal slot formed in at least one said locking member and wherein the retraction member comprises a substantially L-shaped slot, the dowel member projecting into and being moveable in said substantially L-shaped slot such that in a first position of the dowel member, movement of the retraction member causes movement of the corresponding locking member through engagement of the dowel member with a first leg of the L-shaped slot, and in a second position of the dowel member, movement of the retraction member results in sliding movement of the dowel member in a second leg of the L-shaped slot such that the locking member remains stationary.
- This provides a relatively straightforward method of enabling the locking members to be selectively coupled to the retraction member in order to enable selective opening of the doors of the security assembly.
- In a preferred embodiment, when the dowel member is in the second position, the dowel member engages with a locking member retention member to prevent the locking member from being moved.
- This provides the advantage of making it more difficult for unauthorised persons to release the doors by attempting to prise open the locking members.
- In a preferred embodiment, the locking mechanism further comprises a plurality of dowel members arranged to project through a corresponding plurality of longitudinal and L-shaped slots, wherein said plurality of dowel members are mounted to a selector member.
- This provides the advantage that any attempt to disassemble the mechanism by selective drilling on the dowels will cause the mechanism to fail in the locked position. The security assembly then would have to be physically removed in a time consuming way which helps to resist attacks for as long as possible.
- In a preferred embodiment, the locking mechanism further comprises a housing having a front panel accessible to a user, wherein the actuation member is located inside of the housing and adjacent a rear surface of the front panel, and wherein at least one said locking member is located behind the actuation member at a greater distance from the front panel than the actuation member.
- The retraction member may be located between the actuation member and at least one said locking member.
- This provides the advantage of a relatively compact and sturdy assembly.
- The locking mechanism may further comprise a handle assembly arranged to cause movement of the actuation member back and forth along said first path, the handle assembly comprising:
- a handle pivotally mounted to the front panel;
- a cam member connected to the handle and arranged to be rotated by movement of the handle;
- a cam follower connected to the actuation member and arranged to cause the actuation member to move along said first path in response to rotation of the handle.
- The actuation member, retraction member, locking member retention member and at least one said locking member may be formed from a plurality of metal plates.
- This provides the advantage that if a hole is drilled into the locking mechanism, there is less likelihood of disabling the locking mechanism because other portions of the metal plate will still be able to operate the locking mechanism. This also provides the advantage of a sturdy and layered assembly.
- Said plurality of metal plates may be arranged in an overlapping and substantially parallel configuration.
- Said first and second paths may be substantially perpendicular first and second longitudinal axes.
- A preferred embodiment 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:
-
Figure 1 is a rear view of an ATM in which a security assembly is fitted, the doors of the security assembly being shown in the open condition; -
Figure 2 is a rear view of an ATM corresponding toFigure 1 with the doors of the security assembly shown in the closed condition; -
Figure 3 is a rear view of an ATM corresponding toFigures 1 and 2 with one door of the security assembly shown in the open condition; -
Figure 4 is a rear view of the security assembly shown in partial cross-section; -
Figure 5 is a perspective view from the rear of the security assembly corresponding toFigure 4 ; -
Figure 6 is a front view of one of the doors of the security assembly ofFigures 1 to 5 shown with the three locking members in the retracted condition; -
Figure 7 is a partial cross-sectional view from the front of the door ofFigure 6 with the locking members shown in the engaged condition; -
Figure 8 is a front perspective view of a locking mechanism embodying the present invention for opening and closing the locking members of the security assembly ofFigures 1 to 7 ; -
Figure 9 is a rear view of the locking mechanism ofFigure 8 ; -
Figure 10 is a perspective view of the inside of the housing of the locking mechanism ofFigure 8 showing a first stage of the assembly of the locking mechanism; -
Figure 11 is a view corresponding toFigure 10 showing a second stage of the assembly of the locking mechanism; -
Figure 12 is a view corresponding toFigures 10 and 11 showing a third stage in the assembly of the locking mechanism; -
Figure 13 is view corresponding toFigures 10 to 12 showing a fourth stage in the assembly of the locking mechanism; -
Figure 14 is a view of the locking mechanism showing the mounting of the locking members to the retraction member; -
Figure 15 is a view corresponding toFigure 14 showing the mounting of selection plates to the locking members; -
Figure 16 is a close up partially cut away perspective view of a locking member, retraction member and interconnection member demonstrating the selection of a locking member for retraction; -
Figure 17 is a rear view of the locking mechanism corresponding to the position of the selector plate inFigure 16 , showing a locking member retention plate disposed behind the selector plates; and -
Figure 18 is a view corresponding toFigure 17 but showing the selector plate in the uppermost position. - Referring to
Figures 8 and 9 , alocking mechanism 100 comprises a plurality of lockingmembers 22 corresponding to those shown inFigures 4 to 7 . Thelocking mechanism 100 is arranged to selectively retract one or more of the lockingmembers 22 to the left of axis X inFigure 8 . Anactuation member 102 is arranged to move up and down along axis Y in response to rotation of a handle 108 (Figure 10 ). If one or more of lockingmembers 22 is interconnected withactuation member 102 by an interconnection means, which will be explained in more detail below, movement ofactuation member 102 upwardly along axis Y causes the retraction of the selected lockingmembers 22 to the left of axis X. It can be seen fromFigures 8 ,10 and14 that a first, or rear,surface 102R (Figure 10 ) of theactuation member 102 faces a second, or forwardly facing, surface of the lockingmembers 22 such that theactuation member 102 and lockingmembers 22 are arranged in a substantially overlapping configuration. Referring toFigure 10 ,actuation member 102 comprises fourmetal plates 102a to 102d which are rigidly interconnected to one another by means of welding or the like. The locking mechanism is assembled in anouter housing 104 having afront panel 106.Housing 104 is also shown inFigure 5 . -
Actuation member 102 is arranged to reciprocate in response to rotation ofhandle 108. Handle 108 is connected to and arranged to rotate acam member 110.Cam follower portion 102b of theactuation member 102 surrounds thecam member 110 and is arranged to be reciprocated along axis Y in response to rotation ofcam member 110. - Referring to
Figures 8 ,10, 11 and 12 , a pivot mechanism comprises a link member such as aquadrant plate 112 disposed at each end of theactuation member 102.Link member 112 is rotatably mounted to each end of the actuation member aboutpin 114. Eachlink member 112 is pivotally mounted to a guide means such as a mounting plate 116 (Figures 8 and12 ) about pivot pin P. Aretraction member pin 118 formed on eachlink member 112 projects througharcuate slots 120 formed in mountingplate 116. Consequently, referring toFigure 8 , when theactuation member 102 is moved upwardly along axis Y (to the right inFigures 10 to 12 ) as a result of rotation of the handle, linkmembers 112 pivot about points P to cause retraction member pins 118 to move througharcuate slots 120 in the direction of rotation R. - Referring to
Figure 13 ,retraction member 122 is slidably mounted on a rear side of mountingplate 116. Retraction member pins 118 are disposed in correspondingapertures 124 such that movement of retraction member pins 118 througharcuate slots 120 in the direction of rotation R (Figure 12 ), in response to movement of theactuation member 102 along axis Y, moves theretraction member 122 downwardly along axis X inFigure 13 , relative to the mountingplate 116, which remains stationary. - Referring to
Figure 14 , lockingmembers 22 are selectively interconnected with theretraction member 122 by an interconnection means.Retraction member 122 is always moved in response to movement of theactuation member 102. However, lockingmembers 22 are only moved byretraction member 122 if the interconnection means, which will be described in further detail below, interconnects a lockingmember 22 with theretraction member 122. It can be seen fromFigures 8 and12 to 14 that a third, or forward facing, surface of theretraction member 122 faces the first, or rearward facing,surface 102R of theactuation member 102 such that the actuation member and retraction member are arranged in a substantially overlapping configuration. - Referring to
Figures 14 to 16 , the interconnection means comprises aninterconnection member 130 such as a dowel member which is arranged to project throughelongated slots 132 formed in the lockingmembers 22 and also project through substantially L-shapedslots 134 formed in theretraction member 122. Twodowel members 130 are interconnected by a selector member such asselector plate 136.Figures 15 and 16 show an uppermost locking member 22U. In the lower position ofselector plate 136 and thereforedowel member 130, as shown inFigure 16 , the lockingmember 22 is not selected and therefore when theretraction member 122 is retracted along axis X in the direction shown by the arrow inFigure 16 , the lockingmember 22 remains stationery, and is locked to the housing in a manner that will be explained below. - Referring to
Figures 17 and 18 , a locking member retention member such asplate 140 comprises tworetention slots 142 each having an L-shaped configuration. Locking member retention plate is securely fastened to the locking mechanism housing. When theselector plate 136 and therefore dowelmembers 130 are in the lowermost position as shown inFigures 16 and17 ,dowel members 130 engagenotches 142a ofretention slots 142 and the locking members therefore cannot be retracted. When theselector plate 136 and therefore dowelmembers 130 are in the uppermost position as shown inFigure 18 , dowel members are free to retract inleg portions 142b ofretention slots 142 such that the lockingmembers 22 can be retracted. -
Figures 15 to 18 show twodowel members 130 connected by aselector plate 136, although the mechanism would also work with asingle dowel member 130 for each lockingmember 22. Thedowel members 130 andselector plate 136 are arranged to be raised by a selector mechanism (not shown). One example of the selector mechanism comprises an electric motor arranged to operate a worm gear and pinion mechanism in order to move thedowel members 130 andselector plate 136 in the direction of Arrow Y (Figure 16 ) to the uppermost position. In the lower position shown inFigures 16 and17 , it can be seen that when theretraction member 122 moves in the direction of Arrow X, the open edge of L-shapedslot 134 moves past the dowel member. - However, if
dowel members 130 are raised into the upper portions 134U of the L-shapedslots 134, then thedowel member 130 engages a closed edge of L-shapedslot 134 such that retraction of theretraction member 122 causes retraction of the lockingmember 22. - From
Figures 8 to 16 , it can be seen that theactuation member 102 and lockingmembers 22 are arranged in an overlapping configuration. Furthermore, theretraction member 122, mountingplate 116,selector plates 136 and lockingmember retention plate 140 are also arranged in the overlapping configuration. - Also, the components are arranged to move along different paths. For example,
actuation member 102 moves along axis Y and theretraction member 122 and lockingmembers 22 move along axis X which is perpendicular to axis Y. However, it will be apparent to person skilled in the art that axes X and Y do not need to be straight, i.e. they could be curved, or do not need to be perpendicular. - Consequently, as a result of the components moving along different paths and being assembled in a substantially overlapping configuration, a hole drilled through the locking assembly will become misaligned when the locking mechanism is actuated. This makes it more difficult for potential attackers to gain access to the security assembly by using a drilling or cutting attack.
- Furthermore, the components are formed from metallic plates which means that if a hole is drilled through the locking mechanism, it is less likely that any of the parts will break or snap.
- It will be appreciated by persons skilled in the art that the above embodiment has been described by way of example only and not in any limitative sense, and that various alterations and modifications are possible without departure from the scope of the invention as defined by the appended claims.
Claims (15)
- A locking mechanism for a security assembly comprising a frame assembly and at least one door, wherein at least one said door has an open condition and a closed condition in which the door is lockable to the frame assembly to prevent opening of the door, the locking mechanism comprising:an actuation member moveable along a first path by a user; andat least one locking member movable along a second path, different to the first path, in response to movement of the actuation member, at least one said locking member having an engaged condition in which the at least one said locking member is engageable with a door in use to prevent opening of the door, and a retracted condition enabling opening of the door;wherein a first surface of the actuation member faces a second surface of at least one said locking member such that the actuation member and at least one said locking member are arranged in a substantially overlapping configuration.
- A locking mechanism according to claim 1, further comprising interconnection means arrange to selectively interconnect at least one said locking member to the actuation member, such that in a first condition of the interconnection means, movement of the actuation member causes movement of at least one said locking member, and in a second condition of the interconnection means, movement of the actuation member does not cause movement of at least one said locking member.
- An apparatus according to claim 2, wherein the interconnection means comprises:a retraction member movable along the second path in response to movement of the actuation member; andan interconnection member arranged to selectively interconnect at least one said locking member with the retraction member such that in an interconnected condition, retraction of the retraction member in response to movement of the actuation member causes at least one said locking member to move from the engaged condition to the retracted condition.
- A locking mechanism according to claim 3, wherein a third surface of said retraction member faces the first surface of the actuation member such that the actuation member and retraction member are arranged in a substantially overlapping configuration.
- A locking mechanism according to claim 3 or 4, further comprising a pivot mechanism arranged to cause the retraction member to move along the second path in response to movement of the actuation member along the first path, the pivot mechanism comprising:a link member pivotally mounted to a guide means;wherein the link member is pivotally interconnected to the actuation member at a first point on the link member and wherein the link member is pivotally interconnected to the retraction member at a second point on the link member such that movement of the actuation member along the first path causes the link member to pivot about the guide means to cause the retraction member to move along the second path.
- A locking mechanism according to claim 5, wherein the guide means comprises a mounting plate arranged between the actuation member and retraction member.
- An assembly according to any one of claim 3 to 6, wherein the interconnection member comprises a dowel member arranged to be moveable in a longitudinal slot formed in at least one said locking member and wherein the retraction member comprises a substantially L-shaped slot, the dowel member projecting into and being moveable in said substantially L-shaped slot such that in a first position of the dowel member, movement of the retraction member causes movement of the corresponding locking member through engagement of the dowel member with a first leg of the L-shaped slot, and in a second position of the dowel member, movement of the retraction member results in sliding movement of the dowel member in a second leg of the L-shaped slot such that the locking member remains stationary.
- A locking mechanism according to claim 7, wherein when the dowel member is in the second position, the dowel member engages with a locking member retention member to prevent the locking member from being moved.
- A locking mechanism according to claim 7 or 8, further comprising a plurality of dowel members arranged to project through a corresponding plurality of longitudinal and L-shaped slots, wherein said plurality of dowel members are mounted to a selector member.
- A locking mechanism according to any one of the preceding claims, further comprising a housing having a front panel accessible to a user, wherein the actuation member is located inside of the housing and adjacent a rear surface of the front panel, and wherein at least one said locking member is located behind the actuation member at a greater distance from the front panel than the actuation member.
- A locking mechanism according to claim 10, wherein the retraction member is located between the actuation member and at least one said locking member.
- A locking mechanism according to claim 10 or 11, further comprising a handle assembly arranged to cause movement of the actuation member back and forth along said first path, the handle assembly comprising:a handle pivotally mounted to the front panel;a cam member connected to the handle and arranged to be rotated by movement of the handle;a cam follower connected to the actuation member and arranged to cause the actuation member to move along said first path in response to rotation of the handle.
- A locking mechanism according to any one of the preceding claims, wherein the actuation member, retraction member, locking member retention member and at least one said locking member are formed from a plurality of metal plates.
- A locking mechanism according to claim 13, wherein said plurality of metal plates are arranged in an overlapping and substantially parallel configuration.
- A locking mechanism according to any one of the preceding claims, wherein said first and second paths are substantially perpendicular first and second longitudinal axes.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09179405A EP2336464A1 (en) | 2009-12-16 | 2009-12-16 | Locking mechanism |
PCT/GB2010/052089 WO2011073649A1 (en) | 2009-12-16 | 2010-12-15 | Locking mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09179405A EP2336464A1 (en) | 2009-12-16 | 2009-12-16 | Locking mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2336464A1 true EP2336464A1 (en) | 2011-06-22 |
Family
ID=42562351
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09179405A Withdrawn EP2336464A1 (en) | 2009-12-16 | 2009-12-16 | Locking mechanism |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2336464A1 (en) |
WO (1) | WO2011073649A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2055137A (en) * | 1979-07-05 | 1981-02-25 | Fichet Bauche | A door locking device |
US4926664A (en) * | 1989-02-16 | 1990-05-22 | Gartner Klaus W | Self locking electronic lock |
FR2641816A1 (en) * | 1989-01-17 | 1990-07-20 | Picard | IMPROVEMENTS IN CARRIER DOOR LOCKS |
GB2297121A (en) * | 1995-01-18 | 1996-07-24 | Marek Glowacki | Anti-burglar door locks |
EP1359271A1 (en) * | 2002-04-30 | 2003-11-05 | IPM International SA | Mechanical box locking device |
WO2008145961A2 (en) * | 2007-06-01 | 2008-12-04 | Cedardell Limited | Security assembly and method of controlling a security assembly |
-
2009
- 2009-12-16 EP EP09179405A patent/EP2336464A1/en not_active Withdrawn
-
2010
- 2010-12-15 WO PCT/GB2010/052089 patent/WO2011073649A1/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2055137A (en) * | 1979-07-05 | 1981-02-25 | Fichet Bauche | A door locking device |
FR2641816A1 (en) * | 1989-01-17 | 1990-07-20 | Picard | IMPROVEMENTS IN CARRIER DOOR LOCKS |
US4926664A (en) * | 1989-02-16 | 1990-05-22 | Gartner Klaus W | Self locking electronic lock |
GB2297121A (en) * | 1995-01-18 | 1996-07-24 | Marek Glowacki | Anti-burglar door locks |
EP1359271A1 (en) * | 2002-04-30 | 2003-11-05 | IPM International SA | Mechanical box locking device |
WO2008145961A2 (en) * | 2007-06-01 | 2008-12-04 | Cedardell Limited | Security assembly and method of controlling a security assembly |
Also Published As
Publication number | Publication date |
---|---|
WO2011073649A1 (en) | 2011-06-23 |
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