EP0611409A1 - Improvements in and relating to locks. - Google Patents
Improvements in and relating to locks.Info
- Publication number
- EP0611409A1 EP0611409A1 EP92923035A EP92923035A EP0611409A1 EP 0611409 A1 EP0611409 A1 EP 0611409A1 EP 92923035 A EP92923035 A EP 92923035A EP 92923035 A EP92923035 A EP 92923035A EP 0611409 A1 EP0611409 A1 EP 0611409A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- door
- card
- clutch
- drive
- lock
- 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.)
- Granted
Links
Classifications
-
- 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
- E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
- E05B47/0676—Controlling mechanically-operated bolts by electro-magnetically-operated detents by disconnecting the handle
- E05B47/0684—Controlling mechanically-operated bolts by electro-magnetically-operated detents by disconnecting the handle radially
- E05B47/0692—Controlling mechanically-operated bolts by electro-magnetically-operated detents by disconnecting the handle radially with a rectilinearly moveable coupling element
-
- 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
- G07C9/00904—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 hotels, motels, office buildings or the like
-
- 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
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B2047/0014—Constructional features of actuators or power transmissions therefor
- E05B2047/0018—Details of actuator transmissions
- E05B2047/0026—Clutches, couplings or braking arrangements
- E05B2047/0031—Clutches, couplings or braking arrangements of the elastic type
-
- 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
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B47/0012—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with rotary electromotors
Definitions
- This invention concerns locks particularly although not exclusively door locks for hotel rooms.
- each lock must be unique at least within each hotel, so that a room key for one room cannot be used to open another room door.
- all locks should be capable of being opened by a single master key for use by cleaning staff or hotel management personnel.
- the clutch preferably provides a positive drive between the two shafts as by the engagement of a dog or other drive transmitting member so that when the clutch is engaged no slip can occur.
- actuation of the drive transmitting member fro the clutch actuating drive means includes at least one lost motion connection thereby to enable the clutch drive means to operate without damage occuring should the drive transmitting element be misaligned and prevented from entering into the drive transmitting position.
- spring means may be provided to retrac the drive transmitting element when the clutch drive means is deactivated.
- the clutch drive means is adapted to operate and move the drive transmitting elemen into the drive transmitting position in response to a short duration pulse of electrical energy and mechanical means is included which maintains the drive transmitting element in the drive transmitting position until a second until a second short duration pulse of electrical energy is applied to the clutch actuator means to enable the element to be retracted.
- the period of time between the generation of the first pulse and the second pulse is controllable and may for example be determined by data contained on a card inserted into the card reader.
- a door lock can be left enabled so that the door can be opened without the need to insert a card for an extended period of time, if desired.
- switch means is provided which is actuated only when the lock has been fully retracted to permit the door to be opened, which switch means causes a said secon pulse to be generated to thereby enable the drive transmitting device to revert to its normal rest position to disengage the clutch so that when the door has been shut, the lock is once again incapable of being operated from outside the room.
- timing means may be included within the mechanism which generates the second pulse a short period of time after the first pulse has been generated in the event that the switch means has not been actuated.
- the period of time is of the order of a few seconds, for example 5 to 8 seconds which is normally sufficient time for the person who has inserted the card to rotate the handle and open the door.
- inserting the card once again will simply give the person wishing to gain access a further similar period of time within which to rotate the handle and open the door.
- control means for generating the electrical signals for operating the clutch actuator is itself adapted not to so produce the clutch actuating signals until after the card has been removed from the card reader. In this way it is impossible for a person to insert the card and accidentally leave the latter in the lock on the outside of the door, enter the room and for the door to slam shut after them leaving the card on the outside and available to be stolen whilst the authorised user of the card is within the room.
- the clutch actuating drive means comprises an electric motor adapted to rotate a cam from a first position to a second position, movement of the cam between the said two positions effecting axial movement of a pin means to engage in a slot and thereby transmit drive between the two shafts.
- the drive transmitting device is preferably formed from non-magneti material so that it is not possible for the latter to be moved under the influence of a strong external magnetic field.
- the clutch actuator comprises a cam driven by an electric motor and rotatable through approximtely 180 a so as to push, by caming action, a pin into a slot, so as to provide driving engagement between the shaft and the pin; and release of the clutch is achieved by simply continuing to rotate the cam so as to perform a complete revolution so that the pin is again free to retract.
- spring means acts on the pin in a direction to maintain contact with the caming surface and a lost motion connection is provided so that the leading end of the pin can remain stationery if jammed and the lost motion connection can accommodate the whole of the movement attributable to the cam.
- a non-symmetrical cam may be emplyed sometimes referred to as a snail shell cam in which that part of the cam which produces the drive engaging movement of the pin corresponds to an inclined plane which subtends a small angle and that part which enables the pin to return to its rest and disengaged position corresponds to a very steeply inclined plane which subtends an angle approaching 90°.
- the drive for the cam is achieved using a worm and spur gear with the worm driven directly by the electric motor.
- a drive presents almost infinite resistance to any return torque so that there is little if any chance of movement of the cam after the motor is stopped and the combination of the spur wheel and worm gear acts effectively as a brake on the cam.
- the cam is preferably mounted on the same shaft as is the spur wheel.
- Additional cams may be provided on the same shaft for actuating micro switches when the clutch operating cam has been rotated to the most displaced postion of the cam surface, and when it once again regains its rest position after 360° of rotation.
- This type of cam profile may be employed where the motor is a unidirectional motor or a reversing drive is employed. However, in the latter event the time taken to return the cam to its rest position will be substantially the same as that required to drive the pin into its engaging position.
- electric current for the motor and for the control circuits and the card reader is derived from one or more batteries carried within the lock controlling mechanism the lock or the door.
- the invention is not limited to battery operated systems and is equally applicable to a card operated doo lock release mechanism which is powered from an external source of power such as a battery or power supply or the electricity supply mains or any combination thereof.
- Th electrical power for the release mechanism may be convey thereto by cabling which extends between the door and th door jam on the hinge side of the door, sufficient cable being provided to accommodate the distance between the door and the door jam even when the door is fully opened.
- the release mechanism may include a display containing for example differently coloured light emitting diodes and t control circuit means is adapted to generate further control signals which cause the light emitting diodes to be illuminated depending on the circumstances.
- a display containing for example differently coloured light emitting diodes
- t control circuit means is adapted to generate further control signals which cause the light emitting diodes to be illuminated depending on the circumstances.
- a green light emitting diode may be caused to flash for a short time or until such time as the door has been opened.
- a further signal may be generated if for example the door has not been opened within a prescribed period of for example 5 to 8 seconds after the card has been removed an in this event a red light emitting diode may be caused to flash.
- the illuminted display may be duplicated on the interior of the door and may be visible through a window in the back plate mounted on the rear of the door.
- the light emitting diodes are simply connected in parallel so that whatever light condition occurs on t outside is mimicked inside the room.
- the invention is not limited to such an arrangement and separate wiring and separate or the same control signals may be applied to the different light emitting diodes so that in some circumstances different display information will appear inside the room as from that appearing outsi and vice a versa.
- control circuit means which is supplied with signals fro the card reader is programmed so as to distinguish betwe a plurality of different cards and following the inserti (and recordal) of one type of card is adapted to cause a green light emitting diode to flash at least on the insi of the door but to inhibit at that time the generation o a signal for engaging the clutch, the card reader also generates a clutch engaging signal after the same card h been inserted and removed a second time.
- a card ma for example be given to hotel staff or in the case of an office building non-management personnel, and the recipients are instructed to insert and remove their car and await clearance (from within the room) before inserting and removing the card a second time to gain entry.
- Such an arrangement enables the occupant of the room to either deny access to the extent of even bolting the door from within or to grant access depending on circumstances and desire.
- a buzzer or other warning device may be activated by the same signal so the occupant of the room can be alerted t the fact that somebody wishes to gain entry but is awaiting their instructions.
- the signal which causes the green light emitting diode to flash may also be used to enable the drive to the dead bolt so as to cause the latter to engage and thereby secure the door against unauthorised entry even if the person wishing to gain access inserts their card a second time.
- a further card may be provided the data on which is adapted to override all locking functions and cause signals to be transmitted both to the clutch and to the dead bolt drive so as to withdrawn the dead bolt and enable the door to be opened for emergency purposes.
- the said further card may alternatively enabl actuation of the said further clutch to enable a locked and bolted door to be opened in an emergency.
- the display means infrared or opto electric transmitters and receivers, to enable data to be transmitted to and received from data storage means located within the lock release mechanism.
- the latter preferably includes digital storage means such as random access memories, and circuit means for entering data into the memory means and reading out data stored therein.
- a pulse generator circuit may be incorporated adapted to produce timing pulses at one second intervals or multiple thereof to serve as timing pulses, and counter and register means are provided into which date and time can be stored in digital form and updated as appropriate by the pulses from the pulse generator circuit.
- the latter may for example be crystal controlled.
- data may be entered via the data ports (infrared or opto electric) or by means of a card which has previously been programmed. Where the card is itself inactive but merely bears static data, the card can be used to enter the approximate time into a number of locks but where a so-called smart card i employed which itself contains in solid state micro circuits its own time clock, real time data may be entere into the memory of the lock release mechanism for comparison with and calibrating the time clock generator means therewithin.
- data transmitting and receiving means such as infrared or opto electric detectors and transmitters may be provided on the inside of the door as well as on the outside, to enable appropriately aligned data transmitters and receivers located within the room to transmit or receive information to and from the door.
- information about temperature and light level within a room can be checked without opening the door and temperature controls and lighting and/or other electrical appliances within the room can be activated remotely by transmitting data to the data receiver on the outside of the door and relaying via the control circuit means the data to the data transmitter device on the inside of the door, which when transmitted is received by a data receiver at a remote position in the room which upon being decoded by receiving and decoding circuits associated therewith can be converted into control signals for either turning on or turning off or up or down the room heating, the room lighting etc.
- data may be fed into or out of a lock release mechanism as aforesaid using a portable transmitter receiver device which itself includes infrared or opto electrical devices, as appropriate, positioned similarly to those at least on the outside of the door, so that merely pointing the hand held device at the lock release mechanism and pressing appropriate switches, so data can be transmitted to the receiver on the door, or received from the transmitter on the door.
- a portable transmitter receiver device which itself includes infrared or opto electrical devices, as appropriate, positioned similarly to those at least on the outside of the door, so that merely pointing the hand held device at the lock release mechanism and pressing appropriate switches, so data can be transmitted to the receiver on the door, or received from the transmitter on the door.
- memory means is provided within the control circuit means into which data is entered every time a card is inserted into the card reader. Essentially data identifying both the time and some unique identifying number or code on the card is entered together with an indication as to whether or not the door is opened before the reset signal is generated. In this way a record of all card authorised entries into a room is retained and the hand held unit is adapted to recover this data and either display this data on a screen or produce a print ⁇ out using a suitable printer.
- a string of such card entries can be recorded which depending on the size of th memory can extend over a period of hours or days or weeks and which will enable a person containing authority to do so, to interrogate the listing and determine what cards have been used, and when, to gain access to the room.
- an audible alarm device is included within the mechanism which responds to low battery state and produces an audible low battery alarm upon insertion of a card once the low battery state has been detected.
- the device may be made selective so as to distinguish between a guest card and for example a maid's card so that only the latter causes the audible alarm to sound.
- the battery or batteries are located under the back plate on the room side of the door, which is adapted to be removable using appropriate tools to give access fo battery removal.
- Card verification may be achieved by incorporating an opt sensor in the card reader and by providing a unique printed patch on the card so that when a card is inserted in the card reader it is first checked and verified befor may be adapted to enter time data into the mechanism. This enables real time to be entered via a keyboard on the hand held device for immediate entry into the lock release mechanism, so that the time "on board" is as near true real time as possible.
- an intelligent hand held communication unit associated with a locking system as aforesaid enables further features to be incorporated in the system.
- the latter can be programmed to verify cards entered therein.
- Such a device can be used to check whether a person holding a particular card is entitled to access a particular part of a hotel or other building, and is of particular use in secure intallations, such as defence establishments, prisons, etc.
- the invention also lies in a security system comprising a plurality of secure areas such as rooms or zones access to each of which can be gained through one or more doors each of which is controlled by a card releasable lock as aforesaid, card dispenser means and card encoding means associated with a central accessable point within the building to which guests or visitors or users have access, whereby cards can be issued to appropriate persons suitably encoded to allow them access to one or more of the secured areas either indefinitely or for a restricted period of time.
- a security system comprising a plurality of secure areas such as rooms or zones access to each of which can be gained through one or more doors each of which is controlled by a card releasable lock as aforesaid, card dispenser means and card encoding means associated with a central accessable point within the building to which guests or visitors or users have access, whereby cards can be issued to appropriate persons suitably encoded to allow them access to one or more of the secured areas either indefinitely or for a restricted period of time.
- each of the card releaseable locks includes a card reader adapted to receive one of the cards to read the data stored thereon and each of the said locks is releaseable after the card has been removed provided the data on the card satisfies critera stored within with the particular lock release mechanism.
- Figure 1 is a perspective view of part of a door on which a card operated lock release mechanism is mounted.
- Figure 2 is a rear view of the same door showing the room side of the said card operated lock release mechanism.
- Figure 3 illustrates an exploded view of the front plate mechanism of Figure 1.
- Figure 4 contains plan and side views and scrap sections of the lock clutch device
- Figure 5 is a rear view of the front plate assembly.
- Figure 6 is a illustrates a hand held communication device for use with the lock.
- Figure 7 is a front view of the device shown in Figure 6,
- Figure 8 illustrates an encoding device and computer for encoding cards.
- FIG. 9 is a block circuit diagram of the control system within the lock of Figures 1 to 5,
- Figure 10 is a block circuit diagram of the communication shown in Figures 6 and 7, and
- FIG 11 is a block circuit diagram of the encoder of Figure 8.
- a door 10 has fitted therein a conventional hotel lock 12.
- a card operated lock release mechanism 14 having a rotatable handle 16 and a card entry slot 18.
- entry of an appropriate card into slot 18 enables the lock 12 to be operated by the handle 16 to retract the locking fingers 20 and thereby open the door provided the dead bolt 22 is in its retracted condition.
- the inside of the door is fitted with a similar assembly 24 having a handle 26 and dead bolt operating button 28.
- the handle 26 will always operate the lock and retract the fingers 20 to allow an occupant of the room to leave.
- Both assemblies 14 and 24 also include a window slit 30 in the case of the front plate and 32 in the case of the rear plate, through which lights can be seen and 1R signals received and transmitted as will be described later.
- FIG 3 some of the parts making up the front plate assembly of Figure 1 are shown in exploded view.
- the operation of the lock by the external handle 16 is achieved by ensuring that drive is transmitted from the handle 16 via the intermediate member 34 (shown in greater detail and to an enlarged scale in Figure 3a) to the lock operating shaft 36 which protrudes through the square hole in the lock assembly 12, so that rotation of 36 will cause the lock mechanism to be operated and the finger 20 retracted.
- shafts 34 and 36 are axially aligned when assembled but are not interconnected. Rotation of the intermediate shaft assembly 34 does not therefore transmit drive to shaft 36 directly. Instead shaft 36 is keyed by means of its square end 38 to a housing 40. Rotation of the housing will also produce rotation of the shaft 36.
- the cross section of the inner end 42 of the intermediate assembly 34 which engages the housing 40 is of generally circular cross section (albeit formed with a groove 44).
- the outboard end of the member 34 is also formed with a square cross section shaft 46 on which the handle 16 can be secured so that rotation of the handle 16 always produces rotation of the intermediate assembly 34.
- the circular section of the inner end 42 the latter will simply rotate i.e. slip within the circular aperture 48 within the housing 40, and the latter will simply remain stationery.
- the housing 40 is sandwiched between two plates 50 and 52 when assembled. Spacers such as 54, 56 and 58 keep the two plates 50 and 52 separated by a distance just greater than the thickness of the housing 40 so that the latter is free to rotate about the axis of the aligned shafts 34 and 36 between the two plates. Both plates are apertured as at 60 and 62 respectively to allow the passage of the intermediate shaft section 34 and the shaft 36.
- the plates 50 and 52 are themselves mounted securely within the front plate housing 14 as by screws such as 64 and 66.
- the assembly shown is one in which opening of the lock is achieved by rotating the handle 16 in a generally clockwise manner.
- a stop to arrest anticlockwise movement of the handle 16 is provided by of engagement of a radially protruding pin 68 with an undercut 70 in the front face 72 of the housing 40.
- a return spring 78 for automatically rotating the handle in an anticlockwise sense is provided on the plate 50.
- One end 74 is secured to the plate 50 and the other end 76 is secured to the intermediate shaft assembly 34.
- the spring 78 is tensioned with clockwise rotation of the handle 16 so as to provide a restoring force when the handle is released.
- Figures 4a and 4b show the internal detail of the housing 40. Where appropriate the same reference numerals have been used to denote the parts common to Figures 3 and 4. Thus the circular section shaft 42 having the groove 44 is shown entering the housing 40 from the left in Figure 4b whilst the end 38 of the main lock drive shaft 36 is shown entering at the right into a square sectioned aperture in the end plate 41.
- the pin 68 can also be seen engaging the underside of the rebate 70 shown in dotted outline in Figures 4a and 4b.
- Drive is transmitted between shaft 42 and shaft 38 by engaging a pin 80 in the groove 44. Since the pin is attached to the housing 40 (as will be described later) the engagement of the pin 80 in the groove 44 will cause the housing 40 to rotate with the shaft 42. As a consequence rotation of the latter will produce rotation of the shaft end 38 and operate the lock.
- the pin 80 is formed with a hollow interior as best seen in Figure 4a into which the lower end of an upper pin 82 is a sliding fit. Both pins have enlarged heads 84 and 8 respectively which slide in and are guided by a cylindrical sleeve 88.
- the pin 80 is in turn guided in a circular aperture 90 in the lower end wall 92 of the sleeve 88 and the two pins are therefore guided for sliding movement within the sleeve and therefore the housing 40.
- a first spring 94 is located between the end wall 92 and the head of the pin 80 whilst a second spring 96 is located between the pin head 84 and the underside o the pin head 86.
- the springs are selected to give the desired characteristic but typically the upper spring wil be stiffer than the lower spring.
- the head 86 is engaged by a cam 98 which is mounted on a shaft 100 to rotate therewith.
- the latter has mounted thereon a toothed spur wheel 102 so that rotation of the wheel produces rotation of the cam.
- Spur wheel 102 meshes with a worm gear 104 which is mounted on the output shaft of an electric motor 106 which itself is also mounted within the housing 40.
- cams 108 and 110 which serve to operate micro switches 112 and 114 respectively, to denote that the cam is in its maximum and minimum displaced positions relative to the head 86.
- the two part pin assembly 80/82 is provided so as to ensure that should the shaft 42 be misaligned, so that the pin 80 cannot enter the groove 44, movement of the cam 98 is not prevented. Instead the cam merely pushes the pin 82 further into the interior of pin 80, the lost motion connection formed thereby accommodating full displacement of the cam 98. Whilst the rotation of the cam in this situation will not allow the door to be opened, the mechanism is nevertheless protected and by arranging that the motor will drive the cam into its rest position (as shown in Figure 4a) after a short period of time, the door has been opened, the mechanism will have a chance of being reset so that the groove 44 is in fact aligned and ready to receive the pin 80.
- Figure 5 shows the rear view of the front plate 14 with the various internal components mounted therein.
- th housing 40 can be seen mounted behind the plate 52 which itself is secured in position by screws such as 64 and 66.
- Visible in Figure 5 is a square section aperture 116 into which the square section end 38 of the main lock drive shaft 36 fits. To permit rotation of the latter relative to the plate 52, the square section hole 116 is formed in the centre of a round boss 118 which itself protrudes through the circular aperture 62 in the end plate 52.
- a printed circuit board 122 which carries a card reader (not shown) adapted to read and write data from and to cards such as 124 which are entered into the card reader via the slot 18.
- the printed circuit board also carries logic circuits and control circuits, memories, interfaces and all other circuit connections for deriving the motor receiving signals from the micro switches such as 112 and 114, and receiving power from a battery (not shown) typically housed below the cover 24 on the inside of the door.
- the cover 14 includes a window 30 through which three light emitting diodes are visible and which also enables infrared radiation to be projected in and received from infrared detectors and transmitters located in line with the light emitting diodes aligned with the slit 30.
- a similar array is situated behind the slit 32 in the plate 24 on the rear of the door.
- the printed circuit board provides control signals for the light emitting diodes and circuit connections for conveying signals two and from the infrared transmitters and detectors and a multiway cable 126 with socket connector 128 extends from the circuit board through an aperture in the door for connection to an appropriate edg connector or the like on a printed circuit board (not shown) within the cover 24 on the rear of the door. In this way signals can be conveyed to the light emitting diodes and to and from the infrared detectors and transmitters on the other side of the door.
- the three light emitting diodes are seen at 130, 132 and 134 through slit 30 in Figure 1 and an infrared transmitting device is shown at 136 and receiving device at 138. A similar array will be seen through the slit 32.
- Communication with the logic and memory circuits on the printed circuit board 122 may be effected by means of a hand held unit 140 shown in Figure 6.
- This device includes a card receiving slot 142 for receiving a card such as 144, a viewing window 146 through which an LED or liquid crystal display can be seen, a keyboard generally designated 148 for entering digital data and at its front end (as shown in Figure 7) a window containing infrared transmitter 150 and receiver 152.
- the device is adapted to generate digital signals for modulating infrared transmissions from the unit (and to decode infrared transmissions received by the unit) to (and from) the infrared devices 136 and 138 in the door release mechanism.
- real time can be entered using the 24 hour clock notation via the keyboard 148 and using for example the bottom left-hand key 154, the data transmitted, so as to enter the accurate time into memory means within the housing 14.
- the memory means within the housing 14 can be interrogated by the unit 140 and a list of details obtained relating to the card(s) which have been used and times at which access has been gained to th room.
- the unit 140 may include a printer for printing data out, or the date can be scrolled on the screen behin the window 146 or the data can be simply stored in a memory within the device for transmission to a printer or display at a central location to allow the data to be printed or scrolled out as a list.
- the hand held unit can also be used to interrogate sensors within a room to determine temperature, whether lighting is on or off, and can also be used to transmit data via the external infrared link and via the infrared transmitter device on the inside of the door, to infrared sensing devices within the room, to for example, turn off or on heating, turn off or on lighting and the like.
- a security system as described is completed by means of an encoding device 156 as shown in Figure 8 which may incorporate or be adapted to operate in conjunction with a computing device 158.
- the encoder 156 includes a slot 160 into which a card such as 162 can be inserted and further includes a display 164 typically a liquid crytsal display or the like to enable data to be displayed to the user prior to its being written to the card for verification.
- the computer 158 i programmed to interface with and drive the encoder unit 156 to enable room data, guest data, date and time of arrival and departure and authorised zones to be entered in digital format on the card and typically this is done by writing to a magnetic stripe on the card and storing therein data as a magnetic pattern all in known manner.
- the invention is not limited to the use of magnetic stripe cards but punched cards and printed cards which can be read by optical character recognition may also be employed. However, it is believed that magnetic cards represent the most secure form since they are least able to be reproduced for unauthorised use.
- a microswitch may be associated with the dead bolt operating mechanism to clos the switch when the dead bolt is operated and thereby create a logic condition which the processing and logic circuit means within the housing 14 can detect and act on
- the insertion of a card for example by a maid might cause two light emitting diodes to flash in the display panel 30 (for example both a red and an amber light emitting diode) .
- drive means may be provided between the shaft 36 and the dead bolt operating mechanism which is operate by a square shaft 37 visible in Figure 3.
- a clutch which is electrically operable from a disengaged t an engaged mode so operation of the handle 16 will not only rotate the shaft 36 but also the shaft 37 to thereby retract both the fingers 20 and the dead bolt.
- the cards can be programmed by the encoding device 156 in any convenient manner, one card may be programmed for emergency use so as to be capable of not only operating the motor 106 (after it has been inserted and withdrawn) but also a clutch (not shown) associated with the drive between the shaft 36 and the shaft 37, so that subsequent rotation of the handle 16 will gain access to the room even if the door had previously been dead bolted.
- Such a card would clearly only be available for emergency use where for example a hotel guest has retired to his room, dead bolted the door and then been taken ill.
- each card will include numerical data identifying the person to whom it has been issued (e.g.
- the LED and IR transmitter and receiver array i the lock shown in the drawings is indicated as being viewable through an elongate slit or window, more preferably the LED's and IR devices are located in separate compartments viewable through individual ports apertures in the face plate of the lock housing. Not on does this ensure no cross talk between LED's and the IR sensor, but it also prevents someone thinking the slit a shown in the drawings comprises the card viewing aperture.
- the viewing ports may be angled upwards at approximately 45° to make them easier to see.
- the heart of the system is a microprocessor 166.
- a preferred device is a Hitachi Series H8 device, typicall Type 320.
- the device is powered by a battery 168 via a power switch 170 and power conditioner 172 which regulat the supply voltage as seen by the processor 166 and monitors the voltage and generates a warning signal eith directly or via the processor when the battery voltage falls to a predetermined value.
- the power switch can be operated to allow power to the processor 166 by operation of one of four microswitches 174 located in the lock but not all shown in the drawings.
- Microswitch A is closed by the insertion of a card.
- Microswitch B is closed by rotating the handle 16 on the outside of the door (see Figure 1) .
- Microswitch C is closed by rotating the handle 26 in the inside of the door.
- Microswitch D is closed by operation of the deadbolt 28 o the inside of the door.
- the procesor 166 receives data or input signals from various circuit elements.
- the electrical pulses are amplified and shaped by an amplifier 178 before being supplied to a data input, typically a serial input, 180 of the CPU 166.
- Date and time data from a crystal controlled real time clock 182 is supplied to another data input 184 of CPU 166.
- a permanent connection is provided between the clock 182 and the battery 168 (or a separate battery (not shown) is provided) for powering the clock 182, so that the clock continues to operate even in sleep mode, and a real time signal can be obtained from the clock at all times.
- Control of the clock data can be gained by appropriate signals from the CPU 166, to enable the date and time data stored in the clock to be changed, for setting the clock on installation, or changing the time (for example at the beginning and ending of British Summer Time) , or merely to allow the local clock time to be synchronised to an external time source.
- Electrical pulses obtained from the infra red sensor 138 provide a third input to the processor at 186, whereby data from the infra red transmitting element 150 of the hand held transceiver 140 ( Figure 6) can be transmitted to the processor 166.
- the LED driver 188 can additionally provide power for light emitting LED's 130, 132 and 134 ( Figure 1) on the lock, which when actuated reveal the condition of the lock circuit, as hitherto described.
- Data can be written to or read from an EPROM 190 by the processor via data path 192.
- date, time and card identity data may be linked and stored to enable a history of access to the room.
- the bulk of the circuit of Figure is powered down into a so-called "sleep mode". Inserting a card 124 or turning the handle 26 activates CPU 166 via 170, 172. If the battery voltage is below a given threshold, power conditioner 172 generates an audible signal to warn the user that the battery should be replaced.
- the processor 166 may be programmed to only enable the audible alarm signal if a certain type of card is inserted (eg a maid's card) and not if a guest card has been inserted.
- Insertion and removal of a card causes data on the card to be read by the card reader 176. This is decrypted by the CPU 166 and compared with data stored (typically during installation) in the EPROM 190, and with data and time data from the clock 182. If the CPU is able to validate the data from the card (eg the card is a guest card which has been encoded for use on the day and at the time concerned), the motor 106 is powered by a signal from CPU 166 along line 198 until switch 114 has been actuated by cam 110, indicating that cam 98 has been rotated to a position causing maximum downward displacement of pin section 82.
- the pin 82 follows the surface of cam 98 and rises, leaving the way open for pin 80 to rise to its original position in which it is disengaged from the groove 44 in the shaf 42, thereby disabling the outside handle and enabling th fingers 20 to spring out and cause the door to latch whe it is closed.
- Validation data causes CPU 166 to generate signals for 1 to activate the Green LED 130 to indicate that the door can be opened.
- CPU 166 Deriving timing pulses from an on board clock or from th clock 182, CPU 166 also generates a second signal on lin 198 (to simulate closing of microswitch 112) after a giv period of time has elapsed from the actuation of the Gre LED 130.
- the generation of the second signal by the CPU 166 also causes LED driver 188 to turn off the Green LED 130 and turn on Red LED 134, indicating that the door is once again locked and cannot be opened merely by rotating the handle 16.
- the time out is of the order of a few seconds.
- deadbolt knob 28 If the deadbolt has been engaged and the associated microswitch activated by rotating deadbolt knob 28 on the inside of the door, insertion of a card containing valid data will produce a different set of control signals from the CPU 166, so as to cause the Green LED 130 and the Red LED 134 to flash, thereby indicating that the deadbolt is across and the occupant(s) do not wish to be disturbed.
- a second motor (not shown) or a solenoid (not shown) may be provided for releasing the deadbolt (not shown) .
- CPU 166 is programmed to generate a further control signal in the event that a further card (an emergency card) is subsequently inserted after the first, validated card, has been withdrawn.
- the purpose and function of the further control signal is such as to activate the deadbolt withdrawal motor/solenoid (not shown) , to permit access to be gained to the room even though the occupant(s) had secured the door by means of the deadbolt.
- a second set of LED's behind window 32 mimic the states of the LED's visible through window 30 on the front of the door.
- the CPU 166 actuates the Red LED 134 as soon as it is powered up, indicating that access is desired. As soon as data is validated following insertion and removal of a card, the Red LED is extinguished and a second LED signal is generated by CPU 166 and driver 188 to power the Green LED 184. This is extinguished after satisfactory operation of the lock. If time out occurs, the Green LE is extinguished and the Red is illuminated.
- the LED's are powered by intermittent signals generated by the CPU 166 (or the driver 188) so that the LED's are caused to flash.
- a communicator such as hand held unit 140 ( Figure)
- data from the unit can be transmitted to or received from the CPU 166, and in particular control signals may be generated by the CPU 166 so as to power a infra red (IR) transmitter or an IR receiver on the insi of the door.
- IR infra red
- the IR transmitter can transmit data the IR detector on the inside of the door and thereby vi the processor 166 to an IR transmitter on the outside of the door, to permit the signal to be transmitted "throug the door” to a hand held unit, and vice versa.
- lighting and temperature in the room and data relating thereto or controls affecting them be monitored and/or controlled, without opening the door, as previously described.
- Figure 10 shows the essential circuit elements of the ha held communicator 140 ( Figure 6) by which inter alia dat can be inserted into the EPROM 190 ( Figure 9) and/or the memory of processor 166, and by which data stored in the EPROM and/or processor can be retrieved.
- the heart o the system is a microprocessor 198 and again a preferred type is a Hitachi Series H8 device, Type 320.
- Power is derived from an on-board battery 200 which may be a rechargeable type. Battery condition is monitored and supply voltage is regulated by conditioner 202 which supplies power to the CPU 198.
- a real-time clock 204 (which includes date and time and is similar to 182 in Figure 9) provides clock pulses and date and time data f the CPU 198.
- the CPU 198 and the related circuitry is normally maintained in a powered-down or sleep mode.
- An on-off switch (not shown) may be provided to convert to operational mode, but more preferably the sleep mode is exited either as soon as a card is inserted into the slot 142 of a card reader 206 in the unit 140 (so actuating a microswitch 208), or whenever any one of the keys of the keypad 148 is depressed.
- the card data is read and decrypted by the CPU 198 and can be displayed in the LCD (or similar) display 146 ( Figure 6) by entering appropriate instructions via the keypad 148 (shown diagrammatically i Figure 10) .
- the CPU 198 provides control signals for a display driver 210 for driving the LCD display 146 and additionally receives pulses from an infra red detector 152 and provides transmit pulses to the infra red transmitting device 150 (shown in Figure 7).
- An EPROM memory 212 supplements any memory on the CPU 198.
- the unit 140 can also communicate with the encoder 156, and thereby with the computer 158 associated therewith.
- the clock 204 of unit 140 can itself be synchronised from a master clock in the encoder/computer 156/158, before being used to correct the date and time data of a lock system clock such as 182.
- data transferred from an EPROM in a lock (such as 190) to the EPROM 212 of the unit 140 can be transferred to the encoder 156 and/or computer 158 to enable a permanent record of a room acces listing to be obtained as by printing out using a printer (not shown) linked to the computer 158.
- the essential parts of the electrical circuits of the encoder unit 156 are shown in Figure 11.
- the heart of the encoder is a microprocessor 214 and again a Hitachi Series H8 device Type 320 is preferred.
- a crystal controlled real-time clock 216 provides date and time data for CPU 214. This clock can serve as the master clock for the whole system since its date and time can be accessed by a hand held device 140 (as previously described) and the synchronised clock 204 on the hand held unit can be used to synchronis the clocks such as 182 in the locks.
- Power for the encoder is typically derived from the electricity supply mains via an ON/OFF switch and filter 218.
- the alternating current is converted to an appropriate regulated DC supply by a PSU 220.
- PSU 220 also supplies power to a motor driven card reader/writer 222 the entrance slot to which is shown at 160 in Figure 8.
- An EPROM memory 224 retains inter alia encrypting ciphers for encrypting data to be written to each card such as 16 ( Figure 8) inserted into the slot 160. It may also retai data to provide screen prompts to the user for display on the screen of the computer 158, if not stored within the computer 158.
- Data communication with a hand held unit 140 is achieved by an IR link by means of an IR transmitter unit 228 and IR receiver 130 connected to the CPU 214 via path 132.
- Signals for driving the IR LED in the transmitter 228 are obtained from an LED driver 234 which derives its control signals from the CPU 214 and also serves to power status indicating LED's 236, 238, on the front panel of the encoder but not shown in Figure 8.
- LED 236 indicates when power is ON and LED 238 when a card is being coded.
- Card data to be written to a card is most conveniently stored and/or generated within the host computer 158 ( Figure 8) and transmitted to the CPU 214 via the RS232 link 226.
- the data from 226 is encrypted by CPU 214 usin data from EPROM 224.
- the encrypted data may be buffered by the CPU memory before being transmitted to the card writer 222.
Abstract
Mécanisme libérable par carte utilisable en combinaison avec une serrure à mortaiser associée avec une porte; cette serrure s'ouvre par rotation d'un axe d'entraînement qui la traverse. Séparément mais parallèlement à cet axe d'entraînement, un second axe fait saillie à travers une plaque frontale sur la face extérieure de la porte, de manière à permettre le montage d'une poignée sur cet axe. Si elle est autorisée, la rotation de la poignée libère la serrure et permet l'ouverture de la porte. Un dispositif d'embrayage transmet l'entraînement d'un axe à l'autre, mais, lorsqu'il est débrayé, il empêche la transmission de la rotation du second axe vers l'axe d'entraînement. Un lecteur de carte est conçu pour retirer les informations depuis les données codées inscrites sur une carte insérée dans ce lecteur. Un dispositif de circuit de décodage et un dispositif de circuit logique génèrent des signaux de commande si les données reçues par le lecteur de carte satisfont les conditions pré-programmées. On prévoit en outre un actionneur d'embrayage, qui comprend un dispositif d'entraînement actionné électriquement conçu pour actionner ledit embrayage en réponse aux signaux de commande appropriés; cet actionneur permettant à la serrure d'être déverouillée et à la porte de s'ouvrir après insertion de la carte appropriée dans le lecteur de carte.Card-release mechanism usable in combination with a mortise lock associated with a door; this lock opens by rotation of a drive shaft which passes through it. Separately but parallel to this drive shaft, a second shaft protrudes through a face plate on the exterior face of the door, so as to allow the mounting of a handle on this shaft. If authorized, turning the handle releases the lock and allows the door to be opened. A clutch device transmits drive from one axis to the other, but when disengaged, it prevents transmission of rotation from the second axis to the drive axis. A card reader is designed to extract information from the encoded data written on a card inserted into this reader. A decoding circuit device and a logic circuit device generate control signals if data received by the card reader meets pre-programmed conditions. There is further provided a clutch actuator, which comprises an electrically actuated drive device adapted to actuate said clutch in response to appropriate control signals; this actuator allowing the lock to be unlocked and the door to open after inserting the appropriate card into the card reader.
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB919123820A GB9123820D0 (en) | 1991-11-08 | 1991-11-08 | Improvements in and relating to locks |
GB9123820 | 1991-11-08 | ||
PCT/GB1992/002058 WO1993009319A1 (en) | 1991-11-08 | 1992-11-06 | Improvements in and relating to locks |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0611409A1 true EP0611409A1 (en) | 1994-08-24 |
EP0611409B1 EP0611409B1 (en) | 1997-05-28 |
Family
ID=10704348
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92923035A Expired - Lifetime EP0611409B1 (en) | 1991-11-08 | 1992-11-06 | Card releasable mechanism comprising an electric motor for use in a door lock |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0611409B1 (en) |
GB (1) | GB9123820D0 (en) |
WO (1) | WO1993009319A1 (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2754007B1 (en) * | 1996-09-30 | 1998-12-11 | Fontaine Sa | ELECTROMECHANICAL LOCK WITH ELECTRONIC CONTROL |
ES2138523B1 (en) * | 1997-02-27 | 2000-05-16 | Talleres Escoriaza Sa | SECURITY CLOSURE FOR ACCESS CONTROL. |
ES2142230B1 (en) * | 1997-06-09 | 2000-10-16 | Ojmar Sa | ACTIONABLE ELECTRONIC LOCK WITH COIN OR SHEET. |
DE19758572A1 (en) * | 1997-11-06 | 1999-12-16 | Sicherheit Und Service Inh Kla | Electronic-mechanical lock system |
DE19749081C2 (en) * | 1997-11-06 | 2000-08-17 | Sicherheit Und Service Inh Kla | Electronic-mechanical locking system |
CN100425791C (en) * | 2003-08-29 | 2008-10-15 | 长春鸿达光电子与生物统计识别技术有限公司 | Finger print handle lock double lock core linkage mechanism |
US7374084B2 (en) | 2004-06-18 | 2008-05-20 | Computerized Security Systems | Electronic lock with visual interface |
ES2331864B1 (en) * | 2008-07-15 | 2010-10-28 | Salto Systems, S.L. | ELECTROMECHANICAL CYLINDER FOR LOCK. |
US9562371B2 (en) | 2011-01-28 | 2017-02-07 | Assa Abloy Entrance Systems Ab | Intensive care unit door control system |
US9441401B2 (en) | 2012-01-30 | 2016-09-13 | Schlage Lock Company Llc | Lock devices, systems and methods |
MX355745B (en) | 2013-03-15 | 2018-04-27 | Spectrum Brands Inc | Wireless lockset with integrated antenna, touch activation and light communication device. |
CA3017635A1 (en) | 2016-03-22 | 2017-09-28 | Spectrum Brands, Inc. | Garage door opener with touch sensor authentication |
USD927285S1 (en) | 2017-08-02 | 2021-08-10 | Spectrum Brands, Inc. | Deadbolt faceplate with LED strip having animated illumination |
US11450158B2 (en) | 2018-01-05 | 2022-09-20 | Spectrum Brands, Inc. | Touch isolated electronic lock |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4125008A (en) * | 1975-05-13 | 1978-11-14 | Monitron Industries, Inc. | Electrically operated lock |
US4534194A (en) * | 1981-03-16 | 1985-08-13 | Kadex, Incorporated | Electronic lock system |
US4956984A (en) * | 1988-12-06 | 1990-09-18 | Chi Cheng Lo | Locking device |
-
1991
- 1991-11-08 GB GB919123820A patent/GB9123820D0/en active Pending
-
1992
- 1992-11-06 WO PCT/GB1992/002058 patent/WO1993009319A1/en active IP Right Grant
- 1992-11-06 EP EP92923035A patent/EP0611409B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9309319A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0611409B1 (en) | 1997-05-28 |
GB9123820D0 (en) | 1992-01-02 |
WO1993009319A1 (en) | 1993-05-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4415893A (en) | Door control system | |
CA1307574C (en) | Electronic security lock | |
US7069755B2 (en) | Deadbolt lock with electronic touch-key | |
US5437174A (en) | Retrofittable electronic and mechanical door lock system | |
US5083122A (en) | Programmable individualized security system for door locks | |
US5758522A (en) | Access control system for security enclosure | |
EP0611409B1 (en) | Card releasable mechanism comprising an electric motor for use in a door lock | |
US7908896B1 (en) | Biometric deadbolt lock assembly | |
US5988708A (en) | Electromagnetically managed latching exit bar | |
US4684945A (en) | Electronic lock with secure backdoor access | |
EP3782503B1 (en) | Electronic key storage case | |
US20060117819A1 (en) | Universal remote deadbolt adapter | |
EP0537009A1 (en) | Door locking system | |
GB2024922A (en) | Electronic locks | |
US20060114099A1 (en) | Door lock and operation mechanism | |
GB2558128A (en) | Electronic keypad lock for furniture, cabinets or lockers | |
JPH06229155A (en) | Security lock mechanism | |
AU2007219056A1 (en) | Door locking/unlocking unit | |
US20090241615A1 (en) | Defeatable room access control system and method | |
WO2010046677A1 (en) | Door or window security system for mounting at a door or window frame | |
JP5171682B2 (en) | Locking / unlocking system and locking / unlocking method | |
US20210079688A1 (en) | Door lock having a lighted display when in the locked position | |
WO1999014457A1 (en) | A door lock system | |
GB2215387A (en) | Central locking system for buildings | |
EP0469932B1 (en) | A security lock for a closure member |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19940607 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): BE GB |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: TITINERO, LEON |
|
17Q | First examination report despatched |
Effective date: 19950926 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: TITINERO, LEON |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: TITINERO, LEON |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): BE GB |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Effective date: 19970528 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20051216 Year of fee payment: 14 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20061106 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20061106 |