EP0145765A1 - Dispositif de verrouillage actionne par une clef - Google Patents
Dispositif de verrouillage actionne par une clefInfo
- Publication number
- EP0145765A1 EP0145765A1 EP19840902461 EP84902461A EP0145765A1 EP 0145765 A1 EP0145765 A1 EP 0145765A1 EP 19840902461 EP19840902461 EP 19840902461 EP 84902461 A EP84902461 A EP 84902461A EP 0145765 A1 EP0145765 A1 EP 0145765A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- key
- tumblers
- receiving means
- transmitting
- alignment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B49/00—Electric permutation locks; Circuits therefor ; Mechanical aspects of electronic locks; Mechanical keys therefor
- E05B49/002—Keys with mechanical characteristics, e.g. notches, perforations, opaque marks
- E05B49/006—Keys with mechanical characteristics, e.g. notches, perforations, opaque marks actuating opto-electronic devices
- E05B49/008—Keys with mechanical characteristics, e.g. notches, perforations, opaque marks actuating opto-electronic devices by alignment of movable perforated parts, e.g. perforated tumblers
Definitions
- This invention relates to key-operated locking devices of the kind which include a housing containing a plurality of spring-loaded tumblers, the housing being formed with a key slot into which a key can be inserted for engagement with the tumblers such that insertion of the correct key into the slot causes the tumblers to be moved into the appropriate positions for operation of the device whereas insertion of anything other than the correct key does not effect the required movements of the tumblers.
- a device of the above kind is hereinafter referred to for convenience as a Iocking device of the kind specified.
- the tumblers are housed within a rotatable cylinder with the arrangement such that the. tumblers project from the cylinder for engagement with the side walls of channels formed in the housing to prevent rotation of the cylinder unless the correct key has been inserted.
- Such devices have, however, two main limitations. The first is that they can be picked by an expert lock-picker. The second is that they can be forced using a metal Made inserted into the key slot and a torque wrench to rotate the blade and effect shearing of the ends of the tumblers.
- a locking device of the kind specified in which the tumblers are formed with apertures arranged so that they are in alignment only when a correct key is inserted, and in which light transmitter and receiver means are provided for sensing when the apertures are in alignment and for generating an appropriate signal.
- the light transmitter and receiver means may comprise an infra-red emitter and an infra-red sensor with switch means arranged for actuation by an inserted key to cause operation of the emitter.
- the tumblers are preferably arranged in a row with the emitter positioned at one end of the row and the sensor arranged at the other end of the row.
- the tumblers are moved into positions in which the apertures are aligned to permit the uninterrupted passage of an infra-red beam from the emitter to the sensor.
- the switch means has been actuated by insertion of something other than a correct key, the beam will be interrupted by one or more of the tumblers.
- the emitter and the sensor are located at the same end of the row of tumblers and the transmitter is arranged to emit a directional beam through the apertures when in alignment, the beam then being reflected by a reflector which is so positioned at the other end of the row of tumblers that the beam is directed on to the sensor.
- the apertures in the tumblers are preferably of elongate rectangular form with the dimension of each aperture in the direction of tumbler movement substantially less than the dimension of the aperture transversely of the tumbler.
- the dimension of the aperture in the direction of tumbler movement ts preferably of the order of half the difference in the heights of the different cuts of the key.
- the switch means for actuating the infra-red emitter may be located at the innermost end of the key insertion slot so as to be operated by the tip of an inserted key.
- the switch means may be positioned at the side of the key insertion slot such that it is engaged by the key as the key approaches the fully inserted condition.
- the infra-red sensor is preferably connected to a master control circuit remote from the device.
- the printed circuit board may provide the mountings for not only the infra-red emitter and sensor, but also for the key-actuated switch means.
- the housing may comprise two plastic mouldings one of which is in the form of a ribbed spine which defines the key insertion slot, and the other of which is in the form of an outer body defining the outer walls of the tumbler compartments and providing mountings for the infra-red transmitter and sensor.
- Figure 1 is a vertical longitudinal sectional view of a keyoperated device showing the key in position
- Figure 2 is a transverse sectional view of the device
- Figure 3 is a horizontal sectional view of the device.
- the device shown in the drawings is intended to be installed fn the B post of a motor vehicle and includes a moulded plastics body 10 which has a pair of apertured lugs 11 whereby the device can be mounted by suitable fasteners on a mounting element within the B post.
- the device housing comprises, in addition to the body 10, a cover 12 which is also formed as a plastics moulding and has a snap-fit connection with the body. To this end, the cover 12 is formed with two pairs of tongue formation 13 which terminate in inwardly directed wedge formation which engage in appropriately positioned apertures in the body 10.
- the cover 12 contains a printed circuit board 14 which is located slidably within the cover 12 by engagement of its edges in inwardly facing channels in the side walls of the cover.
- the printed circuit board 14 carries the electrical componentry of the device and these include a disc-type actuating switch 15, an infra-red emittor 16 and a photo-transistor 17.
- the device housing Includes a third moulded plastics component in the form of a spine 18 which includes a portion 19 which provides a key insertion slot and a portion 20 which provides a downwardly facing datum surface engaged by the upper edge of an inserted key 21 so that, as the key 21 is inserted, it is guided throughout its range of movement at the end of which the tip of the key 21 engages the switch 15 to actuate the infra-red emittor 16 for a controlled period as determined by a timing circuit of a master control circuit remote from the device.
- Formations of the main body 10 define a plurality of compartments in which moulded plastic wards 22 are located.
- moulded plastic wards 22 are located.
- the ward springs 23 surround pins projecting from the lower edges of the wards and are located in pockets formed in the lower wall of the body 10, the body 10 and spine 18 being attached to each other by rivets 24.
- Each ward 22 is of generally rectangular configuration and is formed with a central rectangular aperture 25 through which the key blade is passed.
- the key can be either a single-entry key or a double-entry key. If a single entry key, the upper edge surface thereof will be straight and the different cuts will be in the lower edge of the key 21. If the key 21 is a double-entry key, the portion thereof immediately adjacent the tip of the key will extend for the full key height so as to provide firm guidance for the key during its insertion.
- the apertures 25 in the different wards 22 are all of the same dimensions and positions, the wards 22 differing from one another in the disposition of an aperture 26 formed in the upper portion of the ward. As indicated in Figure 2 there are three different possible positions for the aperture 26 and there will be three cut conditions for the or each cut edge of the key. As indicated in Figure 1, the infra-red emittor 16 and the photo transistor 17 are so arranged that a straight-line beam 27 from the emittor 16 will, assuming there are no obstructions between the emitter 16 and the photo transistor 17, cause the generation of an output signal by the phototransistor 17.
- This output signal generated by the phototransistor 17 is received by the master control circuit and is effective to cause the application of an output signal of predetermined duration to, for example, electric motors contained in the vehicle door latches, electric actuators for the door latches or other electrical actuators or ⁇ totors of the vehicle.
- the beam 27 will only be uninterrupted when the correct key has been inserted and the wards 22 have been displaced against the actions of the ward springs 23 to bring the apertures 26 into alignment.
- the switch 15 will be operated to actuate the emittor 16 for a predetermined period as controlled by the timing circuitry on the printed circuit board 14 but no output signal will be generated since some at least of the wards will be positioned to interrupt the beam 27. It will not be possible to pick the lock since no indication is given of the correct positions of the wards, as is the case in respect of a rotatable tumbler device. Neither will it be possible to force the lock by inserting a blade into the key slot and applying a torque to the blade.
- the portion 19 of spine 18 includes a mounting for a rotary shutter 28 which is acted upon by a helical spring 29.
- the shutter 28 includes a quadrant-shaped closure member which is normally acted on by the spring loading to be biassed into a position in which it closes the key entry slot whereas, when the key is inserted, the closure member is displaced and free key entry is permitted.
- the device can accordingly include a mounting for an auxiliary prwor input 30 which is carried by the cover 12.
- a small round aperture is formed in the B-post panel and a removable access plug 31, which fits over the power input 30, enters this aperture.
- a power supply can be applied to the input 30 to operate the device and to operate the vehicle door latch motor or other item controlled by the device.
Landscapes
- Lock And Its Accessories (AREA)
Abstract
Dispositif de verrouillage actionné par une clef, par exemple pour serrures de porte de véhicule à actionnement électrique, dans lequel uniquement une clef découpée correctement (21) déplace une rangée de culbuteurs ou de gardes (22) pour en aligner les ouvertures (26). Un photo-émetteur (16) émet un rayon lumineux au travers des ouvertures lorsque la clef est insérée et, si l'alignement est correct, le rayon est détecté par un capteur sensible à la lumière (17), qui produit un signal appliqué à un circuit de commande pour libérer le verrou de la porte et/ou actionner un autre équipement.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08316594A GB2141774B (en) | 1983-06-17 | 1983-06-17 | Key-operated locking device |
GB8316594 | 1983-06-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0145765A1 true EP0145765A1 (fr) | 1985-06-26 |
Family
ID=10544416
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19840902461 Withdrawn EP0145765A1 (fr) | 1983-06-17 | 1984-06-12 | Dispositif de verrouillage actionne par une clef |
EP84304069A Ceased EP0130020A1 (fr) | 1983-06-17 | 1984-06-15 | Dispositif de verrouillage actionné par clé |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84304069A Ceased EP0130020A1 (fr) | 1983-06-17 | 1984-06-15 | Dispositif de verrouillage actionné par clé |
Country Status (3)
Country | Link |
---|---|
EP (2) | EP0145765A1 (fr) |
GB (1) | GB2141774B (fr) |
WO (1) | WO1985000049A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8466786B2 (en) | 2010-08-16 | 2013-06-18 | Rav-Mafteah Ltd. | Locking mechanism with sabbath control unit |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2008150A (en) * | 1932-03-29 | 1935-07-16 | Arthur S Nelson | Control mechanism |
BE792209A (fr) * | 1971-12-03 | 1973-03-30 | Kibolac Handels Gmbh | Serrure |
US3863115A (en) * | 1973-03-01 | 1975-01-28 | Alfred F Hasenbein | Radiation controlled security lock |
US4232353A (en) * | 1978-06-19 | 1980-11-04 | Roger Mosciatti | Door lock security system |
WO1983001643A1 (fr) * | 1981-10-28 | 1983-05-11 | Pickles, Kenneth | Commutateur de securite |
-
1983
- 1983-06-17 GB GB08316594A patent/GB2141774B/en not_active Expired
-
1984
- 1984-06-12 WO PCT/GB1984/000201 patent/WO1985000049A1/fr unknown
- 1984-06-12 EP EP19840902461 patent/EP0145765A1/fr not_active Withdrawn
- 1984-06-15 EP EP84304069A patent/EP0130020A1/fr not_active Ceased
Non-Patent Citations (1)
Title |
---|
See references of WO8500049A1 * |
Also Published As
Publication number | Publication date |
---|---|
GB8316594D0 (en) | 1983-07-20 |
EP0130020A1 (fr) | 1985-01-02 |
GB2141774B (en) | 1987-03-04 |
GB2141774A (en) | 1985-01-03 |
WO1985000049A1 (fr) | 1985-01-03 |
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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 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH DE FR LI LU NL SE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19850520 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: JEAVONS, PHILIP, SWINGEWOOD |