EP0516611A2 - Cylindre de fermeture et clé - Google Patents

Cylindre de fermeture et clé Download PDF

Info

Publication number
EP0516611A2
EP0516611A2 EP92890103A EP92890103A EP0516611A2 EP 0516611 A2 EP0516611 A2 EP 0516611A2 EP 92890103 A EP92890103 A EP 92890103A EP 92890103 A EP92890103 A EP 92890103A EP 0516611 A2 EP0516611 A2 EP 0516611A2
Authority
EP
European Patent Office
Prior art keywords
code
key
track
resistance
cylinder
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
EP92890103A
Other languages
German (de)
English (en)
Other versions
EP0516611B1 (fr
EP0516611A3 (fr
Inventor
Heinz Luef
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.)
Grundmann Schliesstechnik GmbH
Original Assignee
Gebr Grundmann GmbH
Grundmann Geb GmbH
Grundmann Schliesstechnik GmbH
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 Gebr Grundmann GmbH, Grundmann Geb GmbH, Grundmann Schliesstechnik GmbH filed Critical Gebr Grundmann GmbH
Publication of EP0516611A2 publication Critical patent/EP0516611A2/fr
Publication of EP0516611A3 publication Critical patent/EP0516611A3/fr
Application granted granted Critical
Publication of EP0516611B1 publication Critical patent/EP0516611B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the invention relates to a locking cylinder and a key that can be inserted into a key channel of a cylinder core and has at least one mechanical code track.
  • Locking cylinders which have a cylinder core which is rotatably mounted in a housing.
  • the suitable key which can be inserted into a key channel of the cylinder core displaces spring-loaded tumblers which consist of core pins and housing pins in such a way that the contact surfaces between the core and housing pins lie in the cylinder surface of the cylinder core.
  • spring-loaded tumblers which consist of core pins and housing pins in such a way that the contact surfaces between the core and housing pins lie in the cylinder surface of the cylinder core.
  • mechanical but also electronic additional criteria are known, which moreover must be met so that the locking cylinder can be locked.
  • a known embodiment is based on a classic flat key for a locking cylinder and has a key holder that receives an electronic transmission circuit.
  • the transmission circuit in the key box is activated. It transmits a code to a lock-side receiver.
  • a target / actual comparison is carried out with at least one programmed code. If a match is found, the circuit forwards a signal to an electro-mechanical lock in the mortise lock or in the lock cylinder. The lock can only be unlocked if both the mechanical key profile and beard teeth match the lock cylinder and the electronic criteria match.
  • the back of the key is scanned mechanically or optically. Slots are provided which identify each key in the manner of a stitch code.
  • the code of the key back is read, saved and compared with a target code using a microswitch or a light barrier. The lock can only be locked if the code matches and the mechanically suitable key.
  • a key is also known which has a hole track with different bore diameters.
  • a light barrier not only sets the signal itself, but also the signal level fixed, which corresponds to the state "one" when a threshold is exceeded and to the state "zero” when it falls below it. It is a “digital encoder”.
  • Transmitter circuits in the key box are sensitive components that can easily be damaged. Even fine mechanical code elements on the key can get dirty. Measures must be provided which counteract a malfunction caused by dust in the light barrier caused by operation, for example due to abrasion or the environment.
  • the invention begins here. It has set itself the task of creating a fail-safe, operationally reliable security system. This is achieved with a locking cylinder and a key of the type described in the introduction that an analog transmitter, for example pressure-dependent variable resistance, in particular an elastic rubber resistor, is provided together with an electronic measuring circuit as a reading device of the code track, in that the code track serves as a control link for a press ram is formed and that the measuring circuit is assigned to a code memory and a code comparison circuit, at the output of which an electromechanical lock can be connected.
  • the encoder changes an electrical measured variable in the measuring circuit, e.g. B. the electrical resistance value under stress.
  • rhythmic load (pressure) of the encoder that occurs when the key is inserted into the key channel, e.g. B. resistance material to see when the control link of the key acts dynamically on the encoder by its contour.
  • the measured value variation when inserting the key e.g. B. the resistance pattern or a resistance-dependent electrical measured variable is differentiated according to the incoming values above or below a threshold into “zero signals" and single signals ", which in series result in a code.
  • At least one comparison code is stored in a lock-side memory If there is a code match for an unlocking signal to an additional electromechanical lock provided in the lock or cylinder If there is an additional key toothing for shifting pin tumblers, then in addition to the positive target / actual comparison, there is also the one for opening the lock Compliance of the purely mechanical key secret with regard to the pin tumblers required. It is expedient if the key has a bar on at least one flat side as the control link, which carries a height profile and if a stylus as a press ram is slidably mounted opposite the bar in the cylinder core, which is in direct contact with the analog transmitter or via a gap between the cylinder core and housing bridging publication is in contact with the encoder.
  • the stylus follows the height profile of the code bar and transfers the pressure directly or via an additional pressure pin to the encoder.
  • a special embodiment is characterized in that the bar has a height profile in three height levels, the first and third height levels representing the code "zero" and "one", while the middle height level is interposed, at least in the case of successive identical codes, with the code information.
  • the analog transmitter in particular a rubber resistor and preferably also the resistance measuring circuit, the code memory and the comparison circuit, are arranged in a rosette of the locking cylinder.
  • the rubber resistor also acts as a spring.
  • Another embodiment provides, as an analog transmitter, a capacitor with capacitor plates on both sides of the key channel, the key as a code track having different material or different material thicknesses for varying the dielectric between the capacitor plates.
  • the capacitor lies in a high-frequency measuring circuit, which detects the change in the code track via the capacitor.
  • Another embodiment variant is characterized in that that an electrically conductive, elastic material, for example an electrically conductive rubber, is arranged opposite a resistance track as an analog transmitter, and that the rubber can be pressed against the resistance track by the code track of the key and bridges part of the resistance track in a conductive manner.
  • the more the elastic conductive material is pressed against the resistance track the wider the contact surface that short-circuits the resistance track over part of its length.
  • the resistance track is connected to the measuring circuit, which detects an electrical variable as a function of the geometric configuration of the code track.
  • FIG. 1 shows a cross section through a lock cylinder with rosette according to the line I-I in Fig. 2
  • Fig. 2 shows a side view with inserted flat key
  • Fig. 3 shows the flat key in plan view.
  • a locking cylinder 1 comprises a cylinder housing 2 and a cylinder core 3 rotatably mounted therein.
  • Five pairs of pin tumblers 4, 5, 6, 7, 8, each consisting of core pin 9 and housing pin 10 are provided according to FIGS. 1 and 2.
  • the tumblers 4, 5, 6, 7, 8 are only indicated by dash-dotted lines.
  • the locking cylinder is surrounded by a rosette 11.
  • a transverse bore 12 with a stylus 13 is provided in the cylinder core 3.
  • the transverse bore 12 ends in the area of the key channel 14.
  • a key 15 has a side bar 17 as a control link for the stylus 13.
  • FIG. 3 shows the key 15 in plan view and the bar 17 can be clearly seen. It has a height profile in three steps, which are indicated by three lines to the right of Fig. 3.
  • the stylus 13 (Fig. 1) abuts a pressure pin 18.
  • the pins 18 and 13 are biased against the key channel 14 by an elastic element which replaces a spring.
  • This elastic element is designed as a rubber resistor 19, which changes the volume resistance depending on its pressure load.
  • the rubber resistor 19 is part of a resistance measuring circuit in which a battery 21 is also provided.
  • the sequence of the measured resistance values is compared with a threshold value (mean value). Those resistance values which are above the threshold value are considered code values "one" and those values which are below the threshold value are code values "zero".
  • the result is a code pattern (for example 0.0, 1, 1, 0, 0) which is stored in an actual value memory 22 and is compared with a target value of a target value memory 24 in a comparison circuit 23. All those codes for which a blocking authorization is given are stored in the setpoint memory 24, which is freely programmable.
  • the comparison circuit 23 emits a signal via line 25, which leads to the electromechanical unlocking.
  • This can be realized by a solenoid with an iron core as a bolt which engages directly in the cylinder core 3, which interacts with the tumblers 9, 10 or which activates a clutch in the mortise lock.
  • the electromechanical locking is symbolically represented by a double arrow 26.
  • the pressure of the rubber resistor 19 is, as mentioned, varied by the height profile of the bar 17 of the key 15.
  • three height levels 27, 28, 29 are provided: a medium height level 27, which is decisive for the neutral threshold value of the resistance evaluation 20 and enables the distinction between individual code signals, as well as a lower height level 28 and an upper height level 29
  • the height profile of the bar 17 consists of successive level sections of the three aforementioned height levels 27, 28 and 29 (FIG. 3).
  • a prong 30 wakes the circuit (leads it from an energy-saving standby phase into the operating phase) and specifies the value of the average height level 27 as a threshold value in the sense of a calibration of the resistance measuring circuit.
  • a neutral, middle height element 27 is connected between each height element of levels 28 and 29, so that a code of 0,0,1,1,0,0 results, the height elements could follow one another immediately when changing the code from 0 to 1 and vice versa. Only in order to differentiate between successive, identical codes (such as 0.0 or 1.1) is it necessary to interpose a level 27 in the interest of clear identification.
  • the rubber resistor 19 can also be provided in the transverse bore 12 and can be pressurized by the bar 17 of the key 15 via the stylus 13 or a ball.
  • the respective resistance value or a resistance-dependent electrical measured variable can be transmitted via contacts or inductively to the evaluation and comparison circuit 23.
  • the electronics can be accommodated in a long or round plate of the handle fitting. A special rosette 11 is not required in this case.
  • Fig. 1 shows on the left half a stylus 33, which abuts a code track 34 of the key 15.
  • the code track 34 is designed as a channel with different depths that represent the code.
  • the stylus 33 transmits the displacement acted upon by the key 15 to a pressure pin 35 (housing pin) which presses an electrically conductive rubber 36 or plastic against an electrical resistance track 37.
  • the conductive rubber In the unloaded state, the conductive rubber only touches the resistance track 37 in a punctiform or linear manner (transverse to the longitudinal extent of the resistance track 37).
  • the resistance track 37 is connected to the measuring circuit 20 instead of the resistance rubber 19. As soon as the electrically conductive rubber is pressed against the resistance track 37, its contact surface widens on the resistance track 37, thereby bridging part of the resistance.
  • the measured resistance value in the measuring circuit changes depending on the contact pressure, which in turn corresponds to the variable height level of the code track.
  • the widening of the end face of the electrically conductive rubber 36 is shown in broken lines in FIG. 1.
  • the conductive rubber can be conical, spherical or roof-shaped on its end face.

Landscapes

  • Lock And Its Accessories (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
EP19920890103 1991-05-02 1992-04-29 Cylindre de fermeture et clé Expired - Lifetime EP0516611B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT92091A AT396282B (de) 1991-05-02 1991-05-02 Schliesszylinder und schluessel
AT920/91 1991-05-02

Publications (3)

Publication Number Publication Date
EP0516611A2 true EP0516611A2 (fr) 1992-12-02
EP0516611A3 EP0516611A3 (fr) 1992-12-09
EP0516611B1 EP0516611B1 (fr) 1996-04-10

Family

ID=3502876

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920890103 Expired - Lifetime EP0516611B1 (fr) 1991-05-02 1992-04-29 Cylindre de fermeture et clé

Country Status (3)

Country Link
EP (1) EP0516611B1 (fr)
AT (1) AT396282B (fr)
DE (1) DE59205936D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000060197A1 (fr) * 1999-04-06 2000-10-12 David Chaum Verrou electronique capable d'apprendre a reconnaitre toute cle ordinaire
DE102006012567A1 (de) * 2006-03-16 2007-09-20 Kiekert Ag Elektrische Verbindung einer Schlosseinheit
CN102003119A (zh) * 2010-11-15 2011-04-06 唐名姣 一种安全锁及其钥匙
CN106522686A (zh) * 2016-12-30 2017-03-22 卓捷创芯科技（深圳）有限公司 基于无源射频识别标签的智能门锁

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120126059A (ko) 2009-07-14 2012-11-20 엔보테크 네트워크 에스디엔 비에치디(657306-더블유) 보안 시일

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3308487A1 (de) * 1982-04-08 1983-10-13 Gebr. Grundmann GmbH, 3130 Herzogenburg, Niederösterreich Zylinderschloss
WO1988000636A1 (fr) * 1986-07-16 1988-01-28 Lowe & Fletcher Limited Serrure, cle et procede de verrouillage
WO1988000635A1 (fr) * 1986-07-14 1988-01-28 Lowe & Fletcher Limited Support et lecteur d'informations et procede de verification de cles
GB2196685A (en) * 1986-10-24 1988-05-05 Yale Security Prod Ltd Key-operable locks

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2210239A1 (de) * 1972-03-03 1973-09-13 Marc Charles Roy Sicherheitseinrichtung gegen diebstahl zur verriegelung von schliessorganen
DE3225039C2 (de) * 1982-07-05 1985-01-10 Angewandte Digital Elektronik Gmbh, 2051 Brunstorf Vorrichtung zur Identifikation einer Information mit Notstrombetrieb
DE3244566A1 (de) * 1982-12-02 1984-06-14 Angewandte Digital Elektronik Gmbh, 2051 Brunstorf Verfahren und vorrichtung zur gegenseitigen informationsuebertragung zwischen elektronischem schloss und schluessel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3308487A1 (de) * 1982-04-08 1983-10-13 Gebr. Grundmann GmbH, 3130 Herzogenburg, Niederösterreich Zylinderschloss
WO1988000635A1 (fr) * 1986-07-14 1988-01-28 Lowe & Fletcher Limited Support et lecteur d'informations et procede de verification de cles
WO1988000636A1 (fr) * 1986-07-16 1988-01-28 Lowe & Fletcher Limited Serrure, cle et procede de verrouillage
GB2196685A (en) * 1986-10-24 1988-05-05 Yale Security Prod Ltd Key-operable locks

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000060197A1 (fr) * 1999-04-06 2000-10-12 David Chaum Verrou electronique capable d'apprendre a reconnaitre toute cle ordinaire
DE102006012567A1 (de) * 2006-03-16 2007-09-20 Kiekert Ag Elektrische Verbindung einer Schlosseinheit
CN102003119A (zh) * 2010-11-15 2011-04-06 唐名姣 一种安全锁及其钥匙
CN102003119B (zh) * 2010-11-15 2013-05-08 唐名姣 一种安全锁及其钥匙
CN106522686A (zh) * 2016-12-30 2017-03-22 卓捷创芯科技（深圳）有限公司 基于无源射频识别标签的智能门锁

Also Published As

Publication number Publication date
DE59205936D1 (de) 1996-05-15
ATA92091A (de) 1992-11-15
AT396282B (de) 1993-07-26
EP0516611B1 (fr) 1996-04-10
EP0516611A3 (fr) 1992-12-09

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