EP0401647B1
Expired / Lapsed
EP
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Locking mechanism
Assignee: Individual
•
Filing: 1990-05-29
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Granted: 1993-09-29
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Expires: 2010-05-29
Abstract
Abstract In a locking mechanism equipped with electronic locking components, the key comprises a code transmitter and the lock unit formed from a lock and lock cylinder comprises a code evaluator (16) with a release device. The energy source (20) is arranged in the key and the code evaluator (16) is located with the release device (18) in the lock cylinder (12). It is thereby possible to provide lock cylinders which have only the size of conventional lock cylinders and which, without exchanging the lock as a whole, can be substituted for the existing lock cylinder. <IMAGE>
Inventors
- 👤 Anatoli Stobbe
- 👤 Wilfried Herrmann
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 09:52
CPC Classifications
G; G07; G07C; G07C9/00; G07C9/00174; G07C9/00182; E; E05; E05B; E05B47/00; E05B47/06; E05B47/0611; E05B47/0619; E05B47/0623; E05B47/0001; E05B47/0002; E05B47/0006; E05B49/00; G07C2009/00753; G07C2009/00761
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
100 words
Locking device, consisting of at least one key (10) and one lock unit comprising lock and lock cylinder (12), which have electronic closure components, the electronic closure components including a code transmitter (14), disposed in the key (10), and a code evaluator (16) comprising an unlatching device (18), disposed in the lock unit, and also an energy source (20) and energy supply lines (22, 24) between the key (10) and the lock unit, characterized in that the energy source (20) is disposed in the key (10) and the code evaluator (16) with unlatching device (18) in the lock cylinder (12).
Claim 2
Dependent Claim
20 words
Locking device according to Claim 1, characterized in that the unlatching device (18) comprises an electromagnetically operated, mechanical flip-flop (26).
Claim 3
Dependent Claim
44 words
Locking device according to Claim 2, characterized in that the mechanical flip-flop (26) is formed of a magnetic armature constructed as a latch (28) which, when pulled up by an electromagnet (30), releases a bolt (34) displaceable against the force of a spring (32).
Claim 4
Dependent Claim
56 words
Locking device according to Claim 3, characterized in that the spring (32) bears stationarily at one end, bears in the central region against the bolt (34) and carries, at the free end, an abutment surface (36) for the key shank (38), which, when a key (10) is inserted, exerts an unbolting force upon the bolt (34).
Claim 5
Dependent Claim
30 words
Locking device according to Claim 3 or 4, characterized in that the latch (28) is disposed below the vertically mounted electromagnet (30) and is journalled pivotally about a horizontal axis.
Claim 6
Dependent Claim
66 words
Locking device according to one or more of Claims 1 to 5, characterized in that the unlatching device (18) comprises an electromagnet (30), which can be energized via a capacitor (40), disposed in the lock cylinder (12) and chargeable by the energy source (20) located in the key (10), when the code of the key (10) and that of the lock cylinder (12) are the same.
Claim 7
Dependent Claim
72 words
Locking device according to one or more of Claims 1 to 6, characterized in that the energy supply lines (22, 24) are formed, for the one polarity by the key shank (38) with the lock cylinder (12), and for the other polarity by a contact (42) at the end of the key shank (38) with a central contact of the lock cylinder (12), preferably the abutment surface (36) on the spring (32).
Claim 8
Dependent Claim
48 words
Locking device according to one or more of Claims 1 to 6, characterized in that the energy supply lines (22, 24) are formed by contacts at the root of the key shank (38) and, in the inserted condition, by contacts aligned with them in the lock cylinder (12).
Claim 9
Dependent Claim
31 words
Locking device according to Claim 7 or 8, characterized in that the key (10) carries a contact cover, which is displaceable when the key is inserted into the lock cylinder (12).
Claim 10
Dependent Claim
29 words
Locking device according to Claim 7 or 8, characterized in that the key (10) comprises a hand-operated keying device, which is looped into the energy supply lines (22, 24).
Claim 11
Dependent Claim
34 words
Locking device according to Claim 7 or 8, characterized in that the key (10) comprises a timer circuit (44), which releases a charging current for the charging capacitor (40) only for a short time.
Claim 12
Dependent Claim
35 words
Locking device according to Claim 11, characterized in that the timer circuit (44) can be connected via a return signal line with the code evaluator (16) and can be initialized only when the code agrees.
Claim 13
Dependent Claim
38 words
Locking device according to one or more of Claims 1 to 12, characterized in that the code transmitter (14) comprises a code memory (46), a controller circuit (48) for forming the code word and a data transmitter (50).
Claim 14
Dependent Claim
50 words
Locking device according to one or more of Claims 1 to 12, characterized in that the code evaluator (16) comprises a data receiver (52), a code memory (54) and a controller circuit (56) for comparing the code word and is connected to a control input of the unlatching device (18).
Claim 15
Dependent Claim
82 words
Locking device according to one or more of Claims 12 to 14, characterized in that the code evaluator (16) comprises in addition a data transmitter (58), disposed in a return signal line and controlled by its controller circuit (56), and the code transmitter (14) comprises a data receiver (60) connected to its controller circuit (48), by which a code agreement signal can be transmitted to the controller circuit (48) on the code transmitting side, which serves for initializing the timer circuit (44).
Claim 16
Dependent Claim
26 words
Locking device according to one or more of Claims 1 to 15, characterized in that the energy supply lines (22, 24) serve also for transmitting data.
Claim 17
Dependent Claim
28 words
Locking device according to one or more of Claims 1 to 16, characterized in that the key (10) and the lock cylinder (12) additionally possess a mechanical coding.
References Cited (Backward Citations)
US4031434A
Cited
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