EP0222135B1 - Safety lock with flat key and piston tumblers - Google Patents

Safety lock with flat key and piston tumblers Download PDF

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Publication number
EP0222135B1
EP0222135B1 EP19860113587 EP86113587A EP0222135B1 EP 0222135 B1 EP0222135 B1 EP 0222135B1 EP 19860113587 EP19860113587 EP 19860113587 EP 86113587 A EP86113587 A EP 86113587A EP 0222135 B1 EP0222135 B1 EP 0222135B1
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EP
European Patent Office
Prior art keywords
key
pins
seating
cylinder
core
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.)
Expired
Application number
EP19860113587
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German (de)
French (fr)
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EP0222135A1 (en
Inventor
André Thirion
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.)
Antivols Simplex SA
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Antivols Simplex SA
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
Priority claimed from FR8515253A external-priority patent/FR2588602B2/en
Application filed by Antivols Simplex SA filed Critical Antivols Simplex SA
Publication of EP0222135A1 publication Critical patent/EP0222135A1/en
Application granted granted Critical
Publication of EP0222135B1 publication Critical patent/EP0222135B1/en
Expired legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/04—Devices for coupling the turning cylinder of a single or a double cylinder lock with the bolt operating member

Definitions

  • the invention relates to a lock cylinder with pin tumblers and a flat key which resists attempts to break in and in which the core pins are accommodated in a seat which, under the pressure of the tip of the key, slides against a stop of this seat with respect to the cylinder core, with one
  • the driver interacts in such a way that it is separated from it before the key is inserted and thus forms a solid unit after the key has been inserted and it has slid under the pressure of the key tip.
  • Burglary attempts on locking cylinders usually follow two schemes.
  • the first method is to try to force the cylinder core by giving it sufficient torque to break the pin tumblers and thereby release them. This violent turning takes place with the help of a tool inserted into the key channel.
  • Another method is to break open the lock by exerting a slight torque on the cylinder core to break open the pin tumblers one by one.
  • lock cylinder just described is complicated in structure and difficult to assemble because of a larger number of components, in particular housing pins and core pins.
  • the invention relates to an improvement of the lock cylinder according to French Patent No. 2571 772, which, thanks to a greatly reduced number of parts, makes it impossible to simplify.
  • the locking cylinder according to the invention is characterized in that the pins accommodated in the above-mentioned sliding seat each have a peripheral groove at a certain height of each pin and the cylinder core comprises two longitudinal flanges, which close to the aforementioned seat and thereby leave a passage whose width is slightly larger than the diameter of the grooves, but smaller than the diameter of the pins, said passage also having a plurality of holes, the diameter of which is somewhat larger than that of the pins and the number and spacing of which correspond to the number and distance of the pins, the said Sliding seat is switched in relation to the cylinder housing in the rest position.
  • the lock cylinder comprises a cylinder housing 201 in which a cylinder core 202 rotates, which has an axially sliding seat 203; this closes by a coupling nose 204, which cooperates with a recess 205 of a driver 206 of the lock bit 207 for a lock.
  • the seat 203 has radial bores 208 which open into the key channel 209 of the cylinder core 202 and in which the pins 210 which are pressed against the channel 209 by pin springs 211 are accommodated.
  • the cylinder core 202 and its seat 203 rotate freely in the cylinder housing 201, but when the key is removed (FIG. 1) they are angularly locked by a ball 212, which is pressed by a spring 213 against a recess 214 in the cylinder housing 201.
  • the pins 210 comprise a groove 215 of variable height as a corresponding coding for the incision of the key 216, so that when the key is inserted (FIG. 2), the grooves 215 of the different pins 210 are axially aligned.
  • the cylinder core 202 comprises two flanges 217 and 218 ( Figures 3 and 4) which close at the seat 203 and thereby leave a passage 219 between them, the width of which is slightly larger than the diameter of the recesses 215, but smaller than the diameter of the pin body 210 .
  • the passage 219 also has holes 220, the number and spacing of which correspond to the number and spacing of the bores 208; but they have a slightly larger diameter.
  • the key channel 209 is closed by a stop 221, with which the end of the key 216 interacts.
  • the seat 203 forms a fixed part with the cylinder core 202 via the bodies of the pins 210 which are passed through the holes 220 in the passage 219 Unit.
  • Seat 203 cannot slide because its nose 204 is caught in the recess 205 so that the lock cylinder can not be operated.
  • Each torque exerted on the cylinder core 202 disengages the ball 212 from the recess 214 and releases the cylinder core 202 with its seat 203.

Description

Die Erfindung bezieht sich auf einen Schliesszylinder mit Stiftzuhaltungen und flachem Schlüssel, der Einbruchsversuchen widersteht und bei dem die Kernstifte in einem Sitz untergebracht sind, der unter Wirkung des Drucks der Schlüsselspitze gegen einen Anschlag dieses Sitzes in bezug auf den Zylinderkern gleitet, wobei er mit einem Mitnehmer so zusammenwirkt, dass er vor dem Einführen des Schlüssels davon getrennt ist und nach Einführen des Schlüssels und Gleitung unter dem Druck der Schlüsselspitze damit eine feste Einheit bildet.The invention relates to a lock cylinder with pin tumblers and a flat key which resists attempts to break in and in which the core pins are accommodated in a seat which, under the pressure of the tip of the key, slides against a stop of this seat with respect to the cylinder core, with one The driver interacts in such a way that it is separated from it before the key is inserted and thus forms a solid unit after the key has been inserted and it has slid under the pressure of the key tip.

Einbruchsversuche an Schliesszylindern folgen gewöhnlich zwei Schemen. Die erste Methode besteht darin, den Zylinderkern gewaltsam zu drehen zu versuchen, indem ihm ein ausreichendes Drehmoment zum Brechen der Stiftzuhaltungen und damit zu seiner Freigabe mitgeteilt wird. Dieses gewaltsame Drehen erfolgt mit Hilfe eines in den Schlüsselkanal eingeführten Werkzeugs. Eine andere Methode besteht darin, das Schloss aufzubrechen, indem auf den Zylinderkern ein leichtes Drehmomentausgeübtwird, um die Stiftzuhaltungen nacheinander einzeln aufzubrechen.Burglary attempts on locking cylinders usually follow two schemes. The first method is to try to force the cylinder core by giving it sufficient torque to break the pin tumblers and thereby release them. This violent turning takes place with the help of a tool inserted into the key channel. Another method is to break open the lock by exerting a slight torque on the cylinder core to break open the pin tumblers one by one.

Zum Abweisen solcher Versuche ist vorgeschlagen worden, den Zylinderkern in zwei Teilen Stoss an Stoss so herzustellen, dass Aufbruchsversuche ein Drehen des vorderen Teils bewirken und den hinteren Teil davon unberührt lassen. Ein derartiger Schliesszylinder aber widersteht nur schlecht Versuchen zum gewaltsamen Drehen des Zylinderkerns mit Hilfe eines sehr festen Werkzeugs, das ganz in den Schlüsselkanal hineingesteckt wird und somit die beiden Teile miteinander verbindet.In order to reject such attempts, it has been proposed to produce the cylinder core in two parts, butt-to-butt, in such a way that attempts to break open cause the front part to rotate and leave the rear part untouched. Such a locking cylinder, however, only withstands poorly attempts to forcefully turn the cylinder core with the aid of a very firm tool which is inserted entirely into the key channel and thus connects the two parts to one another.

Um diesem Nachteil abzuhelfen, ist im französischen Patent Nr. 2571 772 ein Schliesszylinder der beschriebenen Art vorgeschlagen worden, mit dessen Einführung jeder gewaltsame Aufbruchsversuch, der kein Gleiten der Kernstiftlagerung bewirkt, kein Drehen des Mitnehmers und somit auch kein Funktionieren des Schlosses ermöglicht.In order to remedy this disadvantage, a locking cylinder of the type described has been proposed in French Patent No. 2571 772, with the introduction of which any attempt to break open, which does not cause the core pin bearing to slide, does not allow the driver to rotate and thus does not allow the lock to function.

Der soeben beschriebene Schliesszylinder aber ist in seinem Aufbau kompliziert und wegen einer grösseren Anzahl von Bauteilen, insbesondere Gehäusestiften und Kernstiften, schwer zu montieren.However, the lock cylinder just described is complicated in structure and difficult to assemble because of a larger number of components, in particular housing pins and core pins.

Die Erfindung bezieht sich auf eine Verbesserung des Schliesszylinders gemäss dem französischen Patent Nr. 2571 772, die dank einer stark reduzierten Zahl von Teilen eine Vereinfach ungermöglicht.The invention relates to an improvement of the lock cylinder according to French Patent No. 2571 772, which, thanks to a greatly reduced number of parts, makes it impossible to simplify.

Deshalb ist der erfindungsgemässe Schliesszylinder dadurch gekennzeichnet, dass die im genannten Gleitsitz untergebrachten Stifte jeweils eine periphere Auskehlung auf bestimmter Höhe eines jeden Stiftes aufweisen und der Zylinderkern zwei Längsflanschen umfasst, diesich an genanntem Sitz schliessen und dabei einen Durchgang belassen, dessen Breite etwas grösser ist als der Durchmesser der Auskehlungen, aber kleiner als der Durchmesser der Stifte, wobei der genannte Durchgang zudem eine Mehrzahl von Löchern aufweist, deren Durchmesser etwas grösser ist als der der Stifte und deren Zahl und Abstand der Zahl und dem Abstand der Stifte entsprechen, wobei der genannte Gleitsitz in bezug auf das Zylindergehäuse in Ruhestellung geschaltet ist.Therefore, the locking cylinder according to the invention is characterized in that the pins accommodated in the above-mentioned sliding seat each have a peripheral groove at a certain height of each pin and the cylinder core comprises two longitudinal flanges, which close to the aforementioned seat and thereby leave a passage whose width is slightly larger than the diameter of the grooves, but smaller than the diameter of the pins, said passage also having a plurality of holes, the diameter of which is somewhat larger than that of the pins and the number and spacing of which correspond to the number and distance of the pins, the said Sliding seat is switched in relation to the cylinder housing in the rest position.

Bei der erfindungsgemässen Vorrichtung kommen Gegenstifte in Fortfall, was die Bauweise des Schliesszylinders vereinfacht.In the device according to the invention, counter pins are eliminated, which simplifies the construction of the locking cylinder.

Die Erfindung wird besser verständlich beim Lesen derfolgenden Beschreibung unter Bezugnahme auf die beigeheftete Zeichung, in der:

  • Figur 1 im Axialschnitt eine schematische Ansicht des Schliesszylinders gemäss einem Ausführungsbeispiel der Erfindung darstellt, in der der Schlüssel abgezogen ist;
  • Figur 2 entspricht der Figur 1 nach Einführen des Schlüssels;
  • Figur3 ist ein Schnitt entlang der Linie A in Figur 2, und
  • Figur4 isteineTeilansicht im Schnitt entlang der Linie B in Figur 3.
The invention will be better understood by reading the following description with reference to the attached drawing, in which:
  • Figure 1 shows in axial section a schematic view of the lock cylinder according to an embodiment of the invention, in which the key is removed;
  • Figure 2 corresponds to Figure 1 after inserting the key;
  • Figure 3 is a section along the line A in Figure 2, and
  • Figure 4 is a partial sectional view taken along line B in Figure 3.

Wie im französischen Patent Nr. 2571 772 umfasst der Schliesszylinder ein Zylindergehäuse 201, in dem sich ein Zylinderkern 202 dreht, der einen axial gleitenden Sitz 203 aufweist; dieser schliesst ab durch eine Kupplungsnase 204, die mit einer Aussparung 205 eines Mitnehmers 206 des Schliessbarts 207 für ein Schloss zusammenwirkt. Der Sitz 203 weist Radialbohrungen 208 auf, die in den Schlüsselkanal 209 des Zylinderkerns 202 münden und in denen die von Stiftfedern 211 gegen den Kanal 209 gedrückten Stifte 210 untergebracht sind.As in French Patent No. 2571 772, the lock cylinder comprises a cylinder housing 201 in which a cylinder core 202 rotates, which has an axially sliding seat 203; this closes by a coupling nose 204, which cooperates with a recess 205 of a driver 206 of the lock bit 207 for a lock. The seat 203 has radial bores 208 which open into the key channel 209 of the cylinder core 202 and in which the pins 210 which are pressed against the channel 209 by pin springs 211 are accommodated.

In der Ausführungsform dieses Zusatzes drehen der Zylinderkern 202 und sein Sitz 203 frei im Zylindergehäuse 201, sind aber bei abgezogenem Schlüssel (Figur 1) winkelig verriegelt durch eine Kugel 212, die durch eine Feder 213 gegen eine Aussparung 214 des Zylindergehäuses 201 gedrückt wird. Die Stifte 210 umfassen eine Auskehlung 215 in variabler Höhe als entsprechende Kodierung für den Einschnitt des Schlüssels 216, so dass bei eingeführtem Schlüssel (Figur 2) die Auskehlungen 215 der verschiedenen Stifte 210 axial ausgerichtet sind.In the embodiment of this addition, the cylinder core 202 and its seat 203 rotate freely in the cylinder housing 201, but when the key is removed (FIG. 1) they are angularly locked by a ball 212, which is pressed by a spring 213 against a recess 214 in the cylinder housing 201. The pins 210 comprise a groove 215 of variable height as a corresponding coding for the incision of the key 216, so that when the key is inserted (FIG. 2), the grooves 215 of the different pins 210 are axially aligned.

Der Zylinderkern 202 umfasst zwei Flanschen 217 und 218 (Figuren 3 und 4), die sich am Sitz 203 schliessen und dabei zwischen ihnen einen Durchgang 219 belassen, dessen Breite geringfügig grösser als der Durchmesser derAuskehlungen 215, jedoch kleiner als der Durchmesser der Stiftkörper 210 ist. Der Durchgang 219 weist zudem Löcher 220 auf, deren Anzahl und Abstand der Anzahl und dem Abstand der Bohrungen 208 entsprechen; sie haben aber einen geringfügig grösseren Durchmesser. Der Schlüsselkanal 209 wird durch einen Anschlag 221 abgeschlossen, mit dem das Ende des Schlüssels 216 zusammenwirkt.The cylinder core 202 comprises two flanges 217 and 218 (Figures 3 and 4) which close at the seat 203 and thereby leave a passage 219 between them, the width of which is slightly larger than the diameter of the recesses 215, but smaller than the diameter of the pin body 210 . The passage 219 also has holes 220, the number and spacing of which correspond to the number and spacing of the bores 208; but they have a slightly larger diameter. The key channel 209 is closed by a stop 221, with which the end of the key 216 interacts.

Bei fehlendem Schlüssel (Figur 1) oder bei Gebrauch eines falschen Schlüssels, der das Ausrichten der Auskehlungen 215 der Stifte 210 nicht ermöglicht, bildet der Sitz 203 mit dem Zylinderkern 202 über die durch die Löcher 220 des Durchgangs 219 hindurchgeführten Körper der Stifte 210 eine feste Einheit. Der Sitz 203 kann nicht gleiten, weil seine Nase 204 in der Aussparung 205 so gefangen ist, dass der Schliesszylinder nicht betätigt werden kann. Jedes auf den Zylinderkern 202 ausgeübte Drehmoment lässt die Kugel 212 aus der Aussparung 214 ausrasten und gibt den Zylinderkern 202 mit seinem Sitz 203 frei.If the key is missing (FIG. 1) or if the wrong key is used, which does not allow the grooves 215 of the pins 210 to be aligned, the seat 203 forms a fixed part with the cylinder core 202 via the bodies of the pins 210 which are passed through the holes 220 in the passage 219 Unit. Seat 203 cannot slide because its nose 204 is caught in the recess 205 so that the lock cylinder can not be operated. Each torque exerted on the cylinder core 202 disengages the ball 212 from the recess 214 and releases the cylinder core 202 with its seat 203.

Das Einführen des passenden Schlüssels 216 (Figur 2) richtet die Auskehlungen 215 der Stifte 210 in der Ebene des Durchgangs 219 aus, und ein Druck auf den Schlüssel 216, dessen Ende sich am Anschlag 221 des Sitzes 203 abstützt, bewirkt ein Verschieben dieses Sitzes 203, wobei die Flanschen 217, 218 des Zylinderkerns 202 dem Sitz 203 als Führung dienen, die Auskehlungen 215 im Durchgang 219 gleiten und die Kugel 212 die Aussparung 214 verlässt. Die Nase 204 setzt sich in die Aussparung 205, und ein Drehen des Schlüssels 216 betätigt den Mitnehmer 206 und den Schlüsselbart 207 zum Betätigen des Schlosses. Beim Abziehen des Schlüssels geht alles in umgekehrter Reihenfolge vor sich, und der Schliesszylinder kehrt in die Stellung lt. Figur 1 zurück.The insertion of the appropriate key 216 (FIG. 2) aligns the grooves 215 of the pins 210 in the plane of the passage 219, and a pressure on the key 216, the end of which is supported on the stop 221 of the seat 203, causes this seat 203 to be displaced , wherein the flanges 217, 218 of the cylinder core 202 serve as a guide for the seat 203, the grooves 215 slide in the passage 219 and the ball 212 leaves the recess 214. The nose 204 sits in the recess 205, and turning the key 216 actuates the driver 206 and the key bit 207 to actuate the lock. When the key is removed, everything takes place in the reverse order and the lock cylinder returns to the position shown in FIG. 1.

In der beschriebenen und dargestellten Ausführungsform sitzt eine zweite Reihe Stifte 210' in den Bohrungen 208' des Sitzes 203 senkrecht zu den Bohrungen 208. Die Stifte 210' wirken mit einem anderen Einschnitt des Schlüssels 216 zusammen, wodurch eine erhebliche Vergrösserung der Zahl von Kombinationen möglich ist.In the described and illustrated embodiment, a second row of pins 210 'sits in the bores 208' of the seat 203 perpendicular to the bores 208. The pins 210 'cooperate with another cut of the key 216, which allows a considerable increase in the number of combinations is.

Claims (2)

1. Lock cylinder with pin tumbers and a flat key (216) which is adapted to withstand break-in attempts and in which the core pins (210) are accommodated in a seating (203) which slides in respect of the cylinder core (202) under the effect of the pressure of the tip of the key against an abutment (221) on this seating (203), the seating (203) so co-operating with a driver (206) that prior to insertion of the key it is separate therefrom and after insertion of the key and after sliding under the pressure of the key tip it forms a rigid unit with it, characterised in that the pins (210) accommodated in the sliding seating (203) have in each case a peripheral recess (215) at a specific height of each pin (210), the cylinder core (202) comprising two longitudinal flanges (217,218) which are adjacent the said seating (203) and which provide a through way (219) the width of which is somewhat greater than the diameter of the recesses (215) but somewhat smaller than the diameter of the pins (210), the said through way (219) additionally comprising a plurality of holes (220), the diameter of which is somewhat greater than that of the pins (219) while their number and the distance between them correspond to the pins (210), the said sliding seating (203) being shifted in respect of the cylinder housing (210) in the inoperative position.
2. Lock cylinder according to Claim 1, characterised in that shifting of the seating (203) in respect of the cylinder housing (201) is brought about by a ball (212) which is pressed by a spring (213) into a recess (214).
EP19860113587 1985-10-15 1986-10-02 Safety lock with flat key and piston tumblers Expired EP0222135B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8515253A FR2588602B2 (en) 1984-10-12 1985-10-15 FLAT KEY LOCK WITH ANTI-INFRINGEMENT PISTONS.
FR8515253 1985-10-15

Publications (2)

Publication Number Publication Date
EP0222135A1 EP0222135A1 (en) 1987-05-20
EP0222135B1 true EP0222135B1 (en) 1988-08-03

Family

ID=9323830

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860113587 Expired EP0222135B1 (en) 1985-10-15 1986-10-02 Safety lock with flat key and piston tumblers

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EP (1) EP0222135B1 (en)
DE (1) DE3660456D1 (en)
ES (1) ES2004316B3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2673226B1 (en) * 1991-02-27 1995-09-08 Antivols Simplex Sa FLAT KEY LOCK WITH ANTI-INFRINGEMENT GLITTERS.
DE10203783A1 (en) * 2002-01-31 2003-08-14 Valeo Securite Habitacle lock cylinders

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1505865A (en) * 1923-10-17 1924-08-19 Costa Mario Door lock
US4164857A (en) * 1977-04-07 1979-08-21 Genakis Joseph M Plugless pin tumbler cylinder

Also Published As

Publication number Publication date
ES2004316B3 (en) 1989-07-01
EP0222135A1 (en) 1987-05-20
DE3660456D1 (en) 1988-09-08

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