EP0130020A1 - Dispositif de verrouillage actionné par clé - Google Patents

Dispositif de verrouillage actionné par clé Download PDF

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Publication number
EP0130020A1
EP0130020A1 EP84304069A EP84304069A EP0130020A1 EP 0130020 A1 EP0130020 A1 EP 0130020A1 EP 84304069 A EP84304069 A EP 84304069A EP 84304069 A EP84304069 A EP 84304069A EP 0130020 A1 EP0130020 A1 EP 0130020A1
Authority
EP
European Patent Office
Prior art keywords
key
tumblers
receiving means
alignment
transmitting
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.)
Ceased
Application number
EP84304069A
Other languages
German (de)
English (en)
Inventor
Philip Swingewood Jeavons
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ArvinMeritor Light Vehicle Systems UK Ltd
Original Assignee
Wilmot Breeden Ltd
Rockwell Light Vehicle Systems UK Ltd
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 Wilmot Breeden Ltd, Rockwell Light Vehicle Systems UK Ltd filed Critical Wilmot Breeden Ltd
Publication of EP0130020A1 publication Critical patent/EP0130020A1/fr
Ceased legal-status Critical Current

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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 lbcking 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 blade 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 is 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.
  • the device shown in the drawings is intended to be installed tn 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 prtnted 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 emitter 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.
  • 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
  • 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 emittor 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 motors 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 emitter 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 21.
  • 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 power 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. In the event of a failure of the vehicle battery, a power supply can be applied to the input 30 to operate the device and to operate the vehicle door latch motor or Q ther item controlled by the device.

Landscapes

  • Lock And Its Accessories (AREA)
EP84304069A 1983-06-17 1984-06-15 Dispositif de verrouillage actionné par clé Ceased EP0130020A1 (fr)

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
EP0130020A1 true EP0130020A1 (fr) 1985-01-02

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 Before (1)

Application Number Title Priority Date Filing Date
EP19840902461 Withdrawn EP0145765A1 (fr) 1983-06-17 1984-06-12 Dispositif de verrouillage actionne par une clef

Country Status (3)

Country Link
EP (2) EP0145765A1 (fr)
GB (1) GB2141774B (fr)
WO (1) WO1985000049A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2217563C1 (ru) * 2002-08-21 2003-11-27 Заренков Вячеслав Адамович Электронный замок

Families Citing this family (1)

* Cited by examiner, † Cited by third party
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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2008150A (en) * 1932-03-29 1935-07-16 Arthur S Nelson Control mechanism
FR2164264A5 (fr) * 1971-12-03 1973-07-27 Kibolac Handels Gmbh
US3863115A (en) * 1973-03-01 1975-01-28 Alfred F Hasenbein Radiation controlled security lock
WO1980000091A1 (fr) * 1978-06-19 1980-01-24 R Mosciatti Systeme de securite pour serrure de porte
FR2515240A1 (fr) * 1981-10-28 1983-04-29 Lucas Ind Plc Verrou de securite, notamment pour appareil telephonique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2008150A (en) * 1932-03-29 1935-07-16 Arthur S Nelson Control mechanism
FR2164264A5 (fr) * 1971-12-03 1973-07-27 Kibolac Handels Gmbh
US3863115A (en) * 1973-03-01 1975-01-28 Alfred F Hasenbein Radiation controlled security lock
WO1980000091A1 (fr) * 1978-06-19 1980-01-24 R Mosciatti Systeme de securite pour serrure de porte
FR2515240A1 (fr) * 1981-10-28 1983-04-29 Lucas Ind Plc Verrou de securite, notamment pour appareil telephonique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2217563C1 (ru) * 2002-08-21 2003-11-27 Заренков Вячеслав Адамович Электронный замок

Also Published As

Publication number Publication date
WO1985000049A1 (fr) 1985-01-03
GB8316594D0 (en) 1983-07-20
GB2141774B (en) 1987-03-04
EP0145765A1 (fr) 1985-06-26
GB2141774A (en) 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 IT LI LU NL SE

17P Request for examination filed

Effective date: 19850701

17Q First examination report despatched

Effective date: 19860411

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ROCKWELL AUTOMOTIVE BODY COMPONENTS (UK) LTD

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19870904

RIN1 Information on inventor provided before grant (corrected)

Inventor name: JEAVONS, PHILIP SWINGEWOOD