WO2020011687A1 - Boîte à clef - Google Patents

Boîte à clef Download PDF

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Publication number
WO2020011687A1
WO2020011687A1 PCT/EP2019/068196 EP2019068196W WO2020011687A1 WO 2020011687 A1 WO2020011687 A1 WO 2020011687A1 EP 2019068196 W EP2019068196 W EP 2019068196W WO 2020011687 A1 WO2020011687 A1 WO 2020011687A1
Authority
WO
WIPO (PCT)
Prior art keywords
key box
box according
side walls
locking plate
cams
Prior art date
Application number
PCT/EP2019/068196
Other languages
English (en)
Inventor
Vitalii TOKARIEV
Luis Rodas LORENZEN
Original Assignee
Bekey A/S
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bekey A/S filed Critical Bekey A/S
Priority to EP19735346.9A priority Critical patent/EP3821096B1/fr
Publication of WO2020011687A1 publication Critical patent/WO2020011687A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B19/00—Keys; Accessories therefor
    • E05B19/0005—Key safes
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00896—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys specially adapted for particular uses
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B2047/0094—Mechanical aspects of remotely controlled locks
    • E05B2047/0095—Mechanical aspects of locks controlled by telephone signals, e.g. by mobile phones
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/02—Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means
    • E05B47/023—Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means the bolt moving pivotally or rotatively
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00896—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys specially adapted for particular uses
    • G07C2009/00936—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys specially adapted for particular uses for key cabinets

Definitions

  • the present invention relates in one aspect to a key box for safe-keeping small items, such as mechanical and/or electronic key items, access cards, credit cards, or the like.
  • the key box comprises a first member and a second member, the first member and the second member together defining a secure space, wherein the second member is moveable with respect to the first member between a CLOSED position preventing access to the secure space and an OPEN position allowing access to the secure space; wherein the key box further comprises a lock mechanism adapted for locking the first and second members in the CLOSED position.
  • the key box may be dimensioned as a mobile strong- box for the safe-keeping of small valuables, such as for use in a private household or a hotel room.
  • a mobile strong box may be e.g. dimensioned so has to hold mobile electronic devices, wallets, passports, or the like.
  • the key box is adapted for wall mounting, such as for mounting into a wall or for fixation onto a support structure like a wall.
  • Key boxes for safe keeping of access items such as keys or access cards
  • Such key boxes are used e.g. by workmen, service businesses in the care or the cleaning sector, or rescue workers in emergencies, or real estate agents to obtain access to keys/access cards for flats or properties merely by use of one common code or key.
  • Examples of such key boxes are e.g. known from US patents US 5768921 , US 8375752, US 5794465, or from the published US patent applica- tion US 2016/0180621.
  • very often such boxes suffer from a lack of strength of the locking mechanism making it rather insecure to keep access items or similarly sized important valuables in such small, mobile strongboxes.
  • One object of the present of the present invention is therefore to provide a key box that overcomes at least some of the drawbacks set forth above or provides an alter- native to existing key boxes. More particularly, one object of the invention is to pro- vide a strong locking system for a key box, which is safeguarded against unauthor- ized access by mechanical means, by electronic means, or by mechanical and elec- tronic means.
  • the invention provides a key box as defined by claim 1 , with advantageous embodiments as defined by the dependent claims and disclosed herein.
  • a key box comprises a first member and a second member, the first member and the second member together defining a secure space, wherein the second member is moveable with respect to the first member between a CLOSED position preventing access to the secure space and an OPEN position allowing access to the secure space; wherein the second member compris- es peripheral side walls; wherein the key box further comprises a lock mechanism fixed to the first member; wherein the lock mechanism comprises a locking plate, the lock mechanism being adapted to rotate the locking plate about a rotation axis be- tween a LOCK position and an UNLOCK position; wherein the locking plate corn- prises a plurality of cams, each cam projecting in a different radial direction away from the rotation axis and being arranged to engage the second member at a corre- sponding engagement point on the side walls when the second member is in the CLOSED position and the locking plate is in the LOCK position.
  • the term‘inwardly’ as used herein is defined as pointing in a direction towards the inside of the secure space, such as in a direction towards the rotation axis of the locking plate.
  • the term‘outwardly’ as used herein is defined as pointing in a direc- tion towards the outside of the secure space, such as in a direction away from the rotation axis of the locking plate.
  • the term‘axial’ as used herein refers to directions essentially parallel to the rotation axis of the locking plate.
  • the term‘radial’ as used herein refers to directions essentially perpendicular to the rotation axis of the locking plate, the term‘lateral’ as used herein refers to directions parallel to radial directions.
  • a lateral plane is therefore a plane essentially perpendicular to the rotation axis of the locking plate.
  • the LOCK and UNLOCK positions are two different angular positions of the locking plate.
  • the key box When the key box is closed, and the locking plate is in the LOCK position the key box is locked, i.e. opening of the key box and access to the secure space is prevented.
  • the locking plate When the locking plate is then rotated by means of the locking mecha- nism into the UNLOCK position the key box is unlocked, thus allowing to move the first and second members apart so as to yield access to the secure space.
  • the locking mechanism is arranged inside the secure space.
  • the locking effect is achieved by a plurality of cams projecting in different radially outward directions from the periphery of the locking plate, wherein the cams are engagement elements adapted to engage the second member at respective en- gagement points.
  • the locking plate is thus adapted to simultaneously engage the second member at multiple points, thereby bringing about a strong interlocking ef- fect keeping the first and second members together in the CLOSED position.
  • the engagement points are flange portions on the side walls, such as inwardly projecting flange portions.
  • each cam points in a different respective direction: i.e. at least a first cam and a second cam are provided, the first cam projecting radially outward in a first direction away from the rotation axis, and the second cam projecting radially outward in a second direction away from the rotation axis, wherein the second direction is differ- ent from the first direction.
  • the locking plate is arranged to block movements of the second member with respect to the first member in an axial direction essentially parallel to the rota- tion axis.
  • the locking plate is configured for exerting blocking forces against forces for movements in an axial direction.
  • such a blocking force is directed per- pendicular to the locking plate, or at least has a vector component in the axial direc- tion.
  • such a vector component is typically a major component of the blocking force.
  • Each of the cams is arranged to release engagement of the second member when the locking plate is brought in the UNLOCK position.
  • the movement of the second member with respect to the first member is thus un-blocked allowing the second member to be freely moved between the CLOSED position and the OPEN position, thus providing access to the secure space, e.g. for placing items for safe-keeping therein or for retrieving items from safe-keeping.
  • the locking plate with multiple cams projecting in different directions thus brings about a multipoint locking effect for the movement of the first and second members with respect to each other that can be locked and released by a short angular movement of a single element.
  • a particularly strong, yet compact locking mechanism is provided that can be driven in a particularly power saving manner with a simple rotational actuation.
  • the key box is for safe-keeping small items, such as mechanical and/or electronic keys, access tokens, access cards, credit cards, or similarly sized small items.
  • the locking mechanism is particularly well-suited for small box dimensions, with a secure space adapted to the dimensions of holding a few of such small items, such as up to about 5, or up to about 10, or up to about 20, or up to about 30 credit card sized access cards; and/or up to about 10, or up to about 15, or up to about 20 mechani- cal keys as typically used for apartment or entrance doors, or other house doors; and/or up to about 5, or up to about 10, or up to about 20 car keys.
  • such small key boxes have a total outer volume of a few litres, such as about 3I or below, or about 2I or below, or about 11 or below.
  • a particular strong locking mech- anism is provided that makes the key box more difficult to pry open.
  • the key box may also be dimensioned as a small/mobile “strongbox”, such as a strongbox adapted for wall mounting or a strongbox as commonly used in hotel rooms.
  • the second member is at- tached to the first member by a hinge. This allows for an articulated movement of the second member with respect to the first member around a pivot axis defined by the hinge. This allows operating the key box in a simple and intuitive manner.
  • a pivot axis of the hinge is arranged along one of the side walls of the second member, and essentially parallel thereto, e.g. parallel to one of the edges of a polygon/rectangle defined by the side walls as seen in a lateral plane.
  • the plurality of cams corn- prises at least two cams, wherein a first one of the plurality of cams is arranged to engage the second member at a first engagement point on a first side wall, and wherein a second one of the plurality of cams is arranged to engage the second member at a second engagement point on a second side wall different from the first side wall.
  • the locking plate comprises at least three cams, wherein a third one of the plurality of cams is arranged to en- gage the second member at a third engagement point on a third side wall different from the first and second side walls.
  • a third one of the plurality of cams is arranged to en- gage the second member at a third engagement point on a third side wall different from the first and second side walls.
  • At least one of the engagement points is arranged on a side wall opposite to the hinge. Further advan- tageously one or more further engagement points are arranged on adjoining side walls next to the side wall opposite to the hinge.
  • the peripheral con- tour of the second member is shaped as a polygon, wherein edges of the polygon are defined by the side walls of the second member as seen in a lateral plane per- pendicular to the rotation axis of the locking plate.
  • the polygon has n edges, such as at least three, four, five, six, seven, eight or even more edges.
  • the movement is a pivoting movement around a pivot axis defined by a hinge connecting the first and second members to each other; wherein the pivot axis is arranged in a lateral plane, parallel to an edge defined by one of the side walls.
  • the lock- ing plate has (n-1 ) cams, each of the (n-1 ) cams being configured for engaging the second member at a different side wall which is also different from the hinged side wall.
  • a connecting line between an engagement point on a side wall and the rotation axis is essentially perpendicular to said side wall as seen in projection onto a lateral plane. Thereby a distance of the rotation axis to the point of cam engagement is minimized while placing the engagement points at the pe- riphery of the second member. Thereby the strength of the locking engagement is promoted yet achieving a compact locking mechanism.
  • the movement is a sliding movement along a direction parallel to the rotation axis.
  • the locking plate has n cams, each of the n cams being configured for en- gaging the second member at a different side wall.
  • a connecting line between an engagement point on a side wall and the rotation axis is essentially perpendicular to said side wall as seen in projection onto a lateral plane.
  • the cams of the locking plate in the UNLOCK position point away from (directions) perpendicular to the side walls, such as/preferably towards corners of the polygon/rectangle.
  • a cam engagement radius of a cam is defined by a distance of the corresponding engagement point to the rota- tion axis of the locking plate, wherein the cam engagement radius is the same for all cams. More particularly, the cam engagement radius corresponds to the distance between the rotation axis and the point on the cam where the cam engages the second member when the second member is in the CLOSED position and the lock- ing plate is in the LOCK position. The rotation axis is thus located at equal distances from the engagement points. Thereby an advantageous even distribution of the blocking forces is achieved.
  • a locking plate with different cam engagement radii for different cams may be conceived, e.g. in order to adapt the locking mechanism to certain box geometries.
  • the key box is dimensioned for the safe keeping of small items only as mentioned above.
  • a cam engagement radius is less than or about 10cm, less than or about 8 cm, less than or about 6 cm, or less than or about 4 cm, wherein smaller cam engagement radii allow for providing a sturdy locking mechanism, which makes it particularly difficult to pry open the key box, in particular as the engagement points are arranged at the side walls of the second member. A good locking strength is thus achieved.
  • the first member is a base plate, preferably adapted for wall mounting.
  • the first mem- ber is a base plate adapted for carrying the locking mechanism thereon on the side facing towards the inside of the key box, i.e. the locking mechanism is preferably arranged inside the secure space.
  • the side walls of the second member enclose the first member as seen in radial directions, when the second member is in the CLOSED position.
  • the side walls of the second member thus en- close the first member as seen in a lateral plane perpendicular to the rotation axis of the locking plate when the second member is in the CLOSED position.
  • This configu- ration makes it particularly difficult to apply any prying tools between the first and second members.
  • the first member is configured for wall mounting, since any gap between the first and second members is thus fac- ing towards the wall and is thus hidden or at least not easily accessible to an attack- er usually coming from the front side of the key box.
  • a peripheral contour of the second member as seen in a lateral plane perpendicular to the rotation axis is de- fined by four side walls.
  • the peripheral contour of the second member is rectangular shaped.
  • the second member may have four side walls: wherein a first side wall corn- prises a hinge connecting the first and second members to each other for an articu- lated movement around a pivot axis; a second side wall opposite to the hinge; a third side wall: connecting first ends of the first and second side walls to each other; and a fourth side wall: connecting second ends of the first and second side walls to each other so as to close a rectangle formed by the first, second, third, and fourth side walls; and wherein an engagement point is located on each one of the second, third and fourth side walls, respectively.
  • a hinge axle of the hinge connecting the first and second members is recessed with respect to the surface of the second member, in particular when the second member encloses the first member.
  • the void between the recessed end of the hinge axle and the surface of the second member may be filled by an overlay welding, such as made of a hardfacing welding material.
  • the weld may further ad- vantageously be made level with respect to the surface of the second member and further concealed, e.g. by means of a surface coating, thereby preventing an attack- er from easily finding and attacking the key box from the hinge axle.
  • the engagement points are formed by a flange arranged on the side walls, on the inwardly facing side thereof, i.e. on the side facing towards the secure space. This achieves a particularly strong solution that is difficult to pry open.
  • a location of the engagement points on a flange on the side walls maximizes the leverage of the locking mechanism, thereby promoting the strength of the locking effect when keeping the first and second members together in a locked engagement.
  • the flange is an inwardly projecting nose extending circumferentially along the side walls of the second mem- ber.
  • the flange adds a strengthening structure to the second member where the locking forces are exerted.
  • one or more of the engage- ment points are formed as a recess in the side wall.
  • Such an engagement point is easy to produce, e.g. by milling or otherwise machining the recess into the side wall at the required location only.
  • a blank for a second member may be cast as a half shell with a top wall and peripheral side walls projecting from the top wall, and subsequently the required one or more recesses for the one or more en- gagement points may be formed by milling or otherwise machining away material as necessary.
  • the key box further comprises a motor adapted to actuate the locking mechanism, an electronic control unit and a wireless communication device coupled thereto, whereby the locking mechanism is adapted to be controlled by the electronic control unit in response to user input received via the wireless communication device.
  • the wireless communication device is adapted to communicate with an authentication device by wireless communication, prefera- bly for short range interaction, such as Bluetooth or the like.
  • the wireless communication is NOT of the line-of-sight type, like IR or otherwise optical communication, as this typically requires a feed-through opening in the key box for a receiver/sensor or the optical signal, which has to be arranged on the outside of the key box, thus compromising the security of the shell formed by the first and second members of the key box.
  • a sensor/receiver lo- cated on the outside while conceivable, makes the key box susceptible to vandal- ism.
  • the motor, the control unit, and the wireless communication device are arranged inside the secure space, in addition to the locking mechanism, which is also arranged inside.
  • the locking system further comprises a power supply arranged in the secure space.
  • the power supply comprises a power source such as batteries, or rechargeable batteries.
  • the power supply is for powering the locking system, including the communication device, the control unit, and the motor adapted for driving the electric locking mechanism and thus driving the locking plate into and out of engagement.
  • the power supply further corn- prises an emergency jumper connector arranged to be accessible from the outside of the key box, said emergency jumper connector is useful for connecting an exter- nal power supply to power the electric locking system in case an internally located power source, such as batteries or rechargeable batteries are empty.
  • Fig. 1 a front perspective view of a key box according to one embodiment, in a CLOSED position
  • Fig. 2 a rear perspective view of a key box according to one embodiment, in a CLOSED position
  • Fig. 3 a front perspective view of a key box according to one embodiment, in an OPEN position
  • Fig. 4 a further front perspective view of a key box according to one embodiment, in a CLOSED position
  • Fig. 5 a cross-sectional detail of a key box according to one embodiment, showing the locking plate in the LOCK position;
  • Fig. 6 a cross-sectional detail of a key box according to one embodiment, showing the locking plate in the UNLOCK position;
  • Fig. 7 a perspective view of an electric locking mechanism according to one em- bodiment.
  • Fig. 8 a perspective view of a first member according to one embodiment.
  • the key box comprises a first member 1 and a second member 2.
  • the first and second members 1 , 2 define a secure space.
  • the second mem- ber 2 has peripheral side walls projecting in an axial direction from a front wall of the second member 2 towards the first member 1.
  • the second member of the embodi- ment shown here has four side walls arranged to define an essentially rectangular contour as seen in a lateral plane perpendicular to the axial direction.
  • the first member 1 is adapted for mounting to a flat surface of a support structure, such as a wall (not shown).
  • the first member 1 is plate essentially shaped and arranged in a lateral plane perpendicular to the axial direction.
  • the first member 1 has mounting holes 10 for fixation to the support structure.
  • the first and second members 1 , 2 are connected to each other via a hinge 21 arranged along- side one of the side walls parallel and close to the rear surface of the key box.
  • the first and second members 1 , 2 are thus moveable with respect to each other in an articulated movement around the pivot axis defined by the hinge 21 between a CLOSED position as seen in Figs.1 and 2, and an OPEN position as seen in Fig.3.
  • the secure space is accessible when the key box is open, i.e. when the first and second members 1 , 2 are in the OPEN position. Access to the secure space is pre- vented when the key box is closed, i.e. when the first and second members 1 , 2 are in the CLOSED position.
  • the first member 1 is configured as a base plate.
  • a lock- ing system is fixed to the first member on an inwardly facing surface thereof.
  • the locking system includes a locking mechanism 3, with a locking disk that is operable to engage the second member 2 so as to bring about a locking effect and to disen- gage the second member again for unlocking.
  • the locking mechanism 3 is arranged inside a housing 4, together with any drive, control, and communication electronics as well as a battery power supply.
  • the locking mechanism is oper- ated using a mobile device providing authentication to the control electronics of the locking system through a wireless connection, most preferably a short-range non- line-of-sight wireless connection, such as a Bluetooth connection.
  • Suitable control electronics for use in a key box is e.g. referred to in the international patent applica- tion WO 2015/107006 A1.
  • the housing 4 carries a compartment 5 for receiving small items, such as keys, ac- cess cards, access tokens, credit cards, or similarly sized valuable items therein.
  • the locking mechanism and the compartment are thus arranged inside the secure space defined by the first and second members 1 ,2, and are therefore both protect- ed from attacks or unauthorized access when the key box is closed and locked.
  • the compartment 5 is detachable to simplify the placing the items therein and/or retrieving the items from the compartment.
  • the second member 2 has on the inside of the side walls an inwardly projecting nose extending in a lateral plane along at least a major portion of the three side walls not comprising the hinge 21.
  • the inwardly projecting nose forms a flange 19, which provides engagement points for a plurality of projecting cams 18 of the locking mechanism 3 to provide a locking effect when the key box is closed.
  • a circumferential edge 22 of the second member at the distal end opposite to the top wall is essentially flush with a lateral plane defined by the first member as best seen in Fig.2.
  • the second member thus forms a lid with side walls enclosing the first member as seen in lateral directions, when the key box is in the CLOSED position. Any gap at the contact interface between the first and second members thus faces towards a support surface to which the key box is mounted, which makes it difficult for an attacker to access any such gap for inserting a wedging tool to pry open the key box.
  • Fig. 4 shows a further front perspective view of an embodiment of a rectangular key box formed by a first member 1 and a second member 2 hinged together at a short edge thereof by means of a hinge 21.
  • the hinge 21 allows for a pivotal movement of the second member 2 with respect to the first member 1 around a hinge axle 20.
  • the hinge axle 20 is advantageously inserted through a bore along the pivot axis penetrating at least from one side through the outer surface of the second member.
  • a visible axle placement hole may be vulnerable to attacks.
  • the hinge axle 20 is therefore recessed with respect to the surface of the second member as indicated in Fig.4, and a remaining hole is concealed.
  • the axle mount- ing hole is plugged with a weld material, such as a hardfacing weld material, grinded and coated so as to conceal the axle mounting hole.
  • the key box is advantageously provided with an emer- gency jumper connector 9 for supplying electrical power to the key box drive, con- trol, and communication electronics from an external power source.
  • the emergency jumper connector 9 may even provide a secure data interface for wired transmission of authentication data communication to the control electronics, thereby allowing the operation of the locking mechanism 3 through the emergency jumper connector.
  • Figs.5 and 6 show a cross-sectional detail of the key box as seen in a later- ally oriented cut-plane, i.e. a cut-plane that is arranged perpendicular to the rotation axis R.
  • the rotation axis R thus points perpendicular out of the drawing plane.
  • the rotation axis R defines the axial direction.
  • the first member 1 as seen in the lateral cut-plane is enclosed by the side walls of the second member 2.
  • the side wall with the hinge 21 is not shown in Figs.5 and 6, but would be located in a direction to- wards the bottom of the Figs.5 and 6.
  • the side walls of the second member 2 are provided with an inwardly projecting nose forming a flange 19 extending along the side walls in a lateral plane perpendicular to the axial direction.
  • the locking pate 8 has a plurality of (three) cams 18a-c pointing in (three) different directions away from the rotation axis R, and towards the side walls of the second member 2. The locking action is brought about by rotating the locking plate 8 into a position, where the cams 18a, 18b, 18c engage the flange 19 at corresponding engagement points 19a, 19b, 19c, respectively. This is the LOCK position as seen in Fig.5. Rotation of the locking plate 8 is achieved by coupling the locking plate 8 via a drive shaft 13 to a drive mechanism.
  • the construction is particularly sturdy, since the locking forces brought about by the engagement of the cams 18a-c with the flange 19 are evenly distributed amongst the three engagement-points 19a-c, since the cam engagement radii are the same for all of the cams 18a-c.
  • the locking action is lifted by rotating the locking plate 8 into a position, where the cams 18a, 18b, 18c point away from the corresponding engagement points 19a, 19b, 19c, thereby releasing the flange 19 and allowing the second member 2 to move freely with respect to the first mem- ber 1 , about the hinge 21. This is the UNLOCK position as seen in Fig.6.
  • the locking plate 8 is rotated such that the cams 18a-c point towards the corners formed between adjoining side walls.
  • a guide cut-out 23 on the locking plate 8 interacts with a stopper 17 fixed to the first member 1 to provide limit stops for the angular travel of the locking disk 8, wherein end stops define the LOCK and UN- LOCK positions seen in Figs.5 and 6, respectively.
  • Fig.7 shows an electric locking mechanism including a locking plate 8 with cams 18, wherein the locking plate 8 is coupled by means of a drive shaft 13 (best seen in Figs.5 and 6) to the output shaft of a gear box 7, which is driven by an electrical mo- tor coupled to the input of the gear box, preferably via a worm drive.
  • Fig.8 shows a perspective view of the side of the first member 1 facing towards the secure space, i.e. when the key box is assembled, towards the locking mechanism 3.
  • the locking plate 8 is attached and secured to the first member 1 by means of a sliding bearing with a bearing shaft 14 of the locking plate 8 rotating in a sliding bearing cage 16 on the first member 1.
  • the bearing shaft 14 is concentric with the rotation axis R of the locking plate.
  • Easy assembly is facilitated by using a bayonet- type interlock between the locking plate 8 and the first member 1.
  • the bayonet-type interlock is achieved between lips 15 on a bearing shaft 14 of the locking plate 8 on the one side, and cut-outs and protrusions of the bearing cage 16 on the other side, in cooperation with the stopper 17.
  • the cut-outs are for the insertion of the lips 15 of the bearing shaft 14 into the bearing cage 16 for assembly.
  • the stopper 17 is insert- ed after the bearing shaft 14 of the locking plate 8 has been placed in the bearing cage 16 of the first member 1.
  • the protrusions are for keeping the lips 15 in place in the bearing cage 16 under operation.
  • the cut-outs and protrusions of the bearing cage 16 are therefore oriented such with respect to the lips 15 of the locking plate 8 that in working angular positions as limited by the stopper 17, the protrusions retain the lips 15 of the locking plate 8 in the bearing cage 16.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)

Abstract

La présente invention concerne, selon un aspect, une boîte à clef comprenant un premier élément et un second élément, le premier élément et le second élément délimitant ensemble un espace sécurisé ; le second élément étant mobile par rapport au premier élément entre une position FERMÉE empêchant l'accès à l'espace sécurisé et une position OUVERTE permettant l'accès à l'espace sécurisé ; le second élément comprenant des parois latérales ; le premier élément comprenant un mécanisme de verrouillage ; le mécanisme de verrouillage comprenant une plaque de verrouillage, le mécanisme de verrouillage étant conçu pour faire tourner la plaque de verrouillage autour d'un axe de rotation entre une position de VERROUILLAGE et une position de DÉVERROUILLAGE. La plaque de verrouillage comprend une pluralité de cames, chaque came faisant saillie dans une direction radiale différente de l'axe de rotation, chacune des cames étant agencée pour venir en prise avec le second élément au niveau d'un point de mise en prise correspondant sur les parois latérales lorsque le second élément est dans la position FERMÉE et que la plaque de verrouillage se trouve dans la position de VERROUILLAGE.
PCT/EP2019/068196 2018-07-09 2019-07-08 Boîte à clef WO2020011687A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19735346.9A EP3821096B1 (fr) 2018-07-09 2019-07-08 Boîte à clé

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0668421A1 (fr) * 1994-02-21 1995-08-23 Schloss- und Beschlägefabrik AG Récipient pour contenir des clefs d'objets
US5768921A (en) 1997-04-18 1998-06-23 Supra Products, Inc. Key box device
US5794465A (en) 1995-11-22 1998-08-18 Supra Products, Inc. Key lock box assembly
US8375752B2 (en) 2010-08-23 2013-02-19 Shyh Ru Metallic Industrial Corp. Key box
WO2015107006A1 (fr) 2014-01-14 2015-07-23 Bekey A/S Boîte à clés
US20160180621A1 (en) 2014-12-23 2016-06-23 Garcia Desinor, JR. Real Estate Wireless Lockbox
US9540845B1 (en) * 2015-07-14 2017-01-10 Yao-Kun Yang Lock unit with a room therein

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0668421A1 (fr) * 1994-02-21 1995-08-23 Schloss- und Beschlägefabrik AG Récipient pour contenir des clefs d'objets
US5794465A (en) 1995-11-22 1998-08-18 Supra Products, Inc. Key lock box assembly
US5768921A (en) 1997-04-18 1998-06-23 Supra Products, Inc. Key box device
US8375752B2 (en) 2010-08-23 2013-02-19 Shyh Ru Metallic Industrial Corp. Key box
WO2015107006A1 (fr) 2014-01-14 2015-07-23 Bekey A/S Boîte à clés
US20160180621A1 (en) 2014-12-23 2016-06-23 Garcia Desinor, JR. Real Estate Wireless Lockbox
US9540845B1 (en) * 2015-07-14 2017-01-10 Yao-Kun Yang Lock unit with a room therein

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EP3594434A1 (fr) 2020-01-15
EP3821096A1 (fr) 2021-05-19
EP3821096B1 (fr) 2023-06-07

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