FR2394656A1 - Vehicle ignition lock employing light conductor - has fibre optic conductor from key emitter to detector - Google Patents

Vehicle ignition lock employing light conductor - has fibre optic conductor from key emitter to detector

Info

Publication number
FR2394656A1
FR2394656A1 FR7718084A FR7718084A FR2394656A1 FR 2394656 A1 FR2394656 A1 FR 2394656A1 FR 7718084 A FR7718084 A FR 7718084A FR 7718084 A FR7718084 A FR 7718084A FR 2394656 A1 FR2394656 A1 FR 2394656A1
Authority
FR
France
Prior art keywords
conductor
key
detector
fibre optic
ignition 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
Application number
FR7718084A
Other languages
French (fr)
Other versions
FR2394656B1 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7718084A priority Critical patent/FR2394656A1/en
Priority to GB7826706A priority patent/GB2000544B/en
Priority to ES470713A priority patent/ES470713A1/en
Priority to IT24538/78A priority patent/IT1095070B/en
Priority to JP7141178A priority patent/JPS546254A/en
Priority to DE19782825874 priority patent/DE2825874A1/en
Publication of FR2394656A1 publication Critical patent/FR2394656A1/en
Application granted granted Critical
Publication of FR2394656B1 publication Critical patent/FR2394656B1/fr
Granted legal-status Critical Current

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

Landscapes

  • Lock And Its Accessories (AREA)

Abstract

The lock for car steering and ignition application, has a cavity into which a key is inserted. The key (52) incorporates a fibre-optic conductor (54) joining two positions on the key surface, the positions being displaced longitudinally on the key body and having an angular displacement on the circumference of the key cross-section. A light emitter (60) and a light detector (55) are located in the walls (51) of the cavity in positions corresponding to the ends of the light conductor. The longitudinal and angular position of the emitter, detector and conductor ends may be varied to attain a wide range of codes. Any electromagnetic signal may be used and frequency filters employed to increase security.
FR7718084A 1977-06-13 1977-06-13 Vehicle ignition lock employing light conductor - has fibre optic conductor from key emitter to detector Granted FR2394656A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR7718084A FR2394656A1 (en) 1977-06-13 1977-06-13 Vehicle ignition lock employing light conductor - has fibre optic conductor from key emitter to detector
GB7826706A GB2000544B (en) 1977-06-13 1978-06-12 Lock and key device
ES470713A ES470713A1 (en) 1977-06-13 1978-06-12 Lock and key device
IT24538/78A IT1095070B (en) 1977-06-13 1978-06-13 LOCK AND KEY DEVICE
JP7141178A JPS546254A (en) 1977-06-13 1978-06-13 Lock device
DE19782825874 DE2825874A1 (en) 1977-06-13 1978-06-13 LOCKING DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7718084A FR2394656A1 (en) 1977-06-13 1977-06-13 Vehicle ignition lock employing light conductor - has fibre optic conductor from key emitter to detector

Publications (2)

Publication Number Publication Date
FR2394656A1 true FR2394656A1 (en) 1979-01-12
FR2394656B1 FR2394656B1 (en) 1981-12-24

Family

ID=9192036

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7718084A Granted FR2394656A1 (en) 1977-06-13 1977-06-13 Vehicle ignition lock employing light conductor - has fibre optic conductor from key emitter to detector

Country Status (1)

Country Link
FR (1) FR2394656A1 (en)

Also Published As

Publication number Publication date
FR2394656B1 (en) 1981-12-24

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Legal Events

Date Code Title Description
ST Notification of lapse