EP0463133B1 - Key for a rotary lock cylinder - Google Patents

Key for a rotary lock cylinder Download PDF

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Publication number
EP0463133B1
EP0463133B1 EP91901669A EP91901669A EP0463133B1 EP 0463133 B1 EP0463133 B1 EP 0463133B1 EP 91901669 A EP91901669 A EP 91901669A EP 91901669 A EP91901669 A EP 91901669A EP 0463133 B1 EP0463133 B1 EP 0463133B1
Authority
EP
European Patent Office
Prior art keywords
key
pin
channel
shank
lock 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.)
Expired - Lifetime
Application number
EP91901669A
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German (de)
French (fr)
Other versions
EP0463133A1 (en
Inventor
Ernst Keller
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.)
Assa Abloy Schweiz AG
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Individual
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Filing date
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Publication of EP0463133A1 publication Critical patent/EP0463133A1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B35/00—Locks for use with special keys or a plurality of keys ; keys therefor
    • E05B35/003—Locks for use with special keys or a plurality of keys ; keys therefor for keys with movable bits

Definitions

  • the invention relates to a key for a rotary lock cylinder according to the preamble of independent claim 1.
  • Such a key has become known from DE-B-1 093 253.
  • a key which has a pin at its front end which is displaceable transversely to the key shaft.
  • the pin When the key is inserted into a key channel, the pin is pushed against a projection protruding into the key channel, which pushes the pin against an opposite tumbler.
  • the mentioned tumbler By moving the pin, the mentioned tumbler is categorized.
  • recesses are required at the front end of the key on the narrow sides, but these weaken the key in this area and may make it difficult to insert the key into the key channel.
  • the recesses mentioned also restrict the available space for attaching control surfaces.
  • the invention has for its object to provide a key of the type mentioned, which avoids these disadvantages and requires the least possible structural changes to the rotary lock cylinder.
  • the object is achieved by the invention according to claim 1.
  • the displaceable pin arranged in the key can be actuated with a mandrel which is attached to the driver of the rotary lock cylinder and which projects into the key channel.
  • the displacement of the above-mentioned pin is thus possible with much simpler construction measures. Since the displaceable pin only protrudes outwards at one end, it does not require more space on the surface of the shaft than a conventional counterbore. Two sliding pins can also be attached to the key, which further improves security.
  • a major advantage of this key according to the invention is that the coded length of the pin or pins can be measured much more difficult than before. This makes copying the key even more difficult. Which further increases security for the user.
  • the key 1 according to the invention shown in FIG. 1 has a shaft 1a with conventional countersunk holes 1b, which can also be attached to the narrow sides 1e.
  • the key shown as an exemplary embodiment is a so-called reversible key. However, this could also be another key, for example a serrated key.
  • a channel 1d which extends in the longitudinal direction of the axis of rotation of the key 1, is incorporated into the end face 1c of the shaft 1a.
  • This channel 1d intersects with a transverse bore 1a, which opens outwards on the two narrow sides 1e of the key shaft 1a.
  • two bearing sleeves 6 are inserted, each of which is flush at its ends with the narrow sides 1e and the inner surface of the channel 1d.
  • a slidable pin 5 or 10 is slidably mounted.
  • These pins 5 and 10 are each slightly longer than the bearing sleeves 6. In the case of a reversible key, these are Pins 5 and 10 of the same length. In the case of a non-reversible key, however, these pins can have different lengths and a single displaceable pin can also suffice.
  • the key 1 is provided for a rotary lock cylinder which, according to FIGS. 2 and 3, has the usual tumblers with housing pins 2c and 3a, which are classified by the associated key 1 and thereby a rotor 3 can be rotated in a housing 2.
  • the rotational movement of the rotor 3 is transmitted to the lock bolt with a known driver 4.
  • a mandrel 4a which projects into the key channel 3c, is fastened to the otherwise customarily designed driver 4.
  • This mandrel 4a is designed such that when the key 1a is inserted into the key channel 3c, it engages in the channel 1d without resistance, as shown in FIG. 2.
  • the pin 5 is simultaneously pushed radially outward and thereby pushes the core pin 3a radially against the force of a spring 2a in a radial bore 3b to the outside and classifies it.
  • the other tumblers are classified by the usual counterbores 1b.
  • the pin 5 is dumbbell-shaped here and is prevented from falling out of this sleeve by a constriction 6a of the bearing sleeve 6. So that the pin 5 can be inserted into the sleeve 6a, it is composed of several parts.
  • the key is a reversible key
  • two opposite pins 5 are provided according to FIG. 1, which are pushed outwards by the mandrel 4a.
  • the mandrel 4a can be designed in such a way that it moves the two opposite pins 5 outwards with a different stroke, which can increase the number of locking options. This can be achieved, for example, by removing the front end of the pin 5 on one side.

Abstract

A key (1) has a groove (1d) cut into the front face (1c) of the key shank in which a broach (4a) mounted on the driver (4) of the rotary lock cylinder engages when the key is inserted in the keyway (3c). The broach (4a) then moves a pin (5), which slides in the shaft of the key (1), radially outward and in so doing intercalates a core pin (3). The key also has ordinary counterbores in its shank in which other tumblers engage when the key (1) is inserted in the keyway (3c).

Description

Die Erfindung betrifft einen Schlüssel für einen Drehschliesszylinder nach dem Oberbegriff des unabhängigen Patentanspruchs 1.The invention relates to a key for a rotary lock cylinder according to the preamble of independent claim 1.

Ein solcher Schlüssel ist durch die DE-B-1 093 253 bekannt geworden. Aus US-A-4 667 495 ist ein Schlüssel bekannt, der an seinem vorderen Ende einen Stift besitzt, der quer zum Schlüsselschaft verschiebbar ist. Beim Einstecken des Schlüssels in einen Schlüsselkanal wird der Stift gegen einen in den Schlüsselkanal ragenden Vorsprung geschoben, der den Stift gegen eine gegenüberliegende Zuhaltung schiebt. Durch diese Verschiebung des Stiftes wird die genannte Zuhaltung eingeorndet. Damit der Vorsprung den Stift erreichen kann, sind am vorderen Ende des Schlüssels auf den Schmalseiten Ausnehmungen erforderlich, die jedoch den Schlüssel in diesen Bereich schwächen und möglicherweise die Einführung des Schlüssels in den Schlüsselkanal erschweren. Durch die genannten Ausnehmungen wird zudem die verfügbare Fläche zum Anbringen von Steuerflächen beschränkt.Such a key has become known from DE-B-1 093 253. From US-A-4 667 495 a key is known which has a pin at its front end which is displaceable transversely to the key shaft. When the key is inserted into a key channel, the pin is pushed against a projection protruding into the key channel, which pushes the pin against an opposite tumbler. By moving the pin, the mentioned tumbler is categorized. In order for the protrusion to reach the pin, recesses are required at the front end of the key on the narrow sides, but these weaken the key in this area and may make it difficult to insert the key into the key channel. The recesses mentioned also restrict the available space for attaching control surfaces.

Der Erfindung liegt die Aufgabe zugrunde, einen Schlüssel der genannten Gattung Zu schaffen, der diese Nachteile vermeidet und der möglichst geringe bauliche Aenderungen am Drehschliesszylinder erfordert. Die Aufgabe wird durch die Erfindung gemäss Anspruch 1 gelöst.The invention has for its object to provide a key of the type mentioned, which avoids these disadvantages and requires the least possible structural changes to the rotary lock cylinder. The object is achieved by the invention according to claim 1.

Der im Schlüssel angeordnete verschiebbare Stift kann mit einem Dorn betätigt werden, der am Mitnehmer des Drehschliesszylinders angebracht ist und der in den Schlüsselkanal hineinragt. Die Verschiebung des genannten Stiftes sind somit mit wesentlich einfacheren konstruktiven Massnahmen möglich. Da der verschiebbare Stift nur an einem Ende nach aussen ragt, erfordert er auf der Fläche des Schaftes nicht mehr Fläche als eine übliche Senkbohrung. Am Schlüssel können auch zwei verschiebbare Stifte angebracht werden, wodurch die Sicherheit noch weiter verbessert wird.The displaceable pin arranged in the key can be actuated with a mandrel which is attached to the driver of the rotary lock cylinder and which projects into the key channel. The displacement of the above-mentioned pin is thus possible with much simpler construction measures. Since the displaceable pin only protrudes outwards at one end, it does not require more space on the surface of the shaft than a conventional counterbore. Two sliding pins can also be attached to the key, which further improves security.

Ein wesentlicher Vorteil dieses erfindungsgemässen Schlüssels besteht darin, dass die codierte Länge des Stiftes bzw. der Stifte wesentlich schwieriger als bisher ausgemessen werden kann. Dadurch wird ein Kopieren des Schlüssels noch weiter erschwert. Wodurch die Sicherheit für den Benutzer weiter erhöht wird.A major advantage of this key according to the invention is that the coded length of the pin or pins can be measured much more difficult than before. This makes copying the key even more difficult. Which further increases security for the user.

Ein Ausführungsbeispiel der Erfindung wird nachfolgen anhand der Zeichnungen näher erläutert. Es zeigen:

  • Fig. 1 im vergrössertem Massstab einen teilweise geschnittenen erfindungsgemässen Schlüssel,
  • Fig. 2 im vergrössertem Massstab ein Radialschnitt durch einen Teil eines Drehschliesszylinders mit eingeschobenen Schlüsselschaft, und
  • Fig. 3 entsprechend Fig. 2, jedoch mit vollständig eingeschobenen Schlüsselschaft.
An embodiment of the invention will be explained in more detail with reference to the drawings. Show it:
  • 1 on an enlarged scale a partially cut key according to the invention,
  • Fig. 2 on an enlarged scale a radial section through part of a rotary lock cylinder with inserted key shaft, and
  • Fig. 3 corresponding to Fig. 2, but with the key shaft fully inserted.

Der in Fig. 1 gezeigte erfindungsgemässe Schlüssel 1 besitzt einen Schaft 1a mit üblichen Senkbohrungen 1b, die auch an den Schmalseiten 1e angebracht sein können. Der als Ausführungsbeispiel gezeigte Schlüssel ist ein sogenannter Wendeschlüssel. Dieser könnte jedoch auch ein anderer Schlüssel beispielsweise ein Zackenschlüssel sein.The key 1 according to the invention shown in FIG. 1 has a shaft 1a with conventional countersunk holes 1b, which can also be attached to the narrow sides 1e. The key shown as an exemplary embodiment is a so-called reversible key. However, this could also be another key, for example a serrated key.

In die Stirnseite 1c des Schaftes 1a ist ein Kanal 1d eingearbeitet, der sich in Längsrichtung der Drehachse des Schlüssels 1 erstreckt. Dieser Kanal 1d kreuzt sich mit einer Querbohrung 1a, die an den beiden Schmalseiten 1e des Schlüsselschaftes 1a nach aussen mündet. In diese Bohrung 1a sind zwei Lagerhülsen 6 eingesetzt, die jeweils an ihren Enden mit den Schmalseiten 1e und der Innenfläche des Kanals 1d bündig sind. In jeder Lagerhülse 6 ist ein verschiebbarer Stift 5 bzw. 10 verschiebbar gelagert. Diese Stifte 5 bzw. 10 sind jeweils etwas länger als die Lagerhülsen 6. Bei einem Wendeschlüssel sind diese Stifte 5 bzw. 10 gleich lang. Bei einem Nicht-Wendeschlüssel können diese Stifte jedoch unterschiedlich lang sein und es kann auch ein einziger verschiebbarer Stift genügen.A channel 1d, which extends in the longitudinal direction of the axis of rotation of the key 1, is incorporated into the end face 1c of the shaft 1a. This channel 1d intersects with a transverse bore 1a, which opens outwards on the two narrow sides 1e of the key shaft 1a. In this bore 1a, two bearing sleeves 6 are inserted, each of which is flush at its ends with the narrow sides 1e and the inner surface of the channel 1d. In each bearing sleeve 6 a slidable pin 5 or 10 is slidably mounted. These pins 5 and 10 are each slightly longer than the bearing sleeves 6. In the case of a reversible key, these are Pins 5 and 10 of the same length. In the case of a non-reversible key, however, these pins can have different lengths and a single displaceable pin can also suffice.

Der Schlüssel 1 ist für einen Drehschliesszylinder vorgesehen, der gemäss den Fig. 2 und 3 übliche Zuhaltungen mit Gehäusestiften 2c und 3a aufweisen, die durch den zugehörigen Schlüssel 1 eingeordnet werden und dadurch ein Rotor 3 in einem Gehäuse 2 rotiert werden kann. Die Rotationsbewegung des Rotors 3 wird mit einem bekannten Mitnehmer 4 auf den Schlossriegel übertragen. An dem sonst üblich ausgebildeten Mitnehmer 4 ist ein Dorn 4a befestigt, der in den Schlüsselkanal 3c hineinragt. Dieser Dorn 4a ist so ausgebildet, dass er beim Einschieben des Schlüssels 1a in den Schlüsselkanal 3c ohne Widerstand wie in Fig. 2 gezeigt in den Kanal 1d eingreift. Kurz bevor der Schlüssel 1 vollständig in den Schlüsselkanal 3c eingeschoben ist, gelangt eine konische Stirnfläche 4b des Dorns 4 mit einer konischen Fläche 5b am inneren Ende des Stiftes 5 in Eingriff, wie dies in Fig. 2 gezeigt ist. Entsprechendes gilt für den Stift 10, der in den Fig. 2 und 3 weggelassen ist.The key 1 is provided for a rotary lock cylinder which, according to FIGS. 2 and 3, has the usual tumblers with housing pins 2c and 3a, which are classified by the associated key 1 and thereby a rotor 3 can be rotated in a housing 2. The rotational movement of the rotor 3 is transmitted to the lock bolt with a known driver 4. A mandrel 4a, which projects into the key channel 3c, is fastened to the otherwise customarily designed driver 4. This mandrel 4a is designed such that when the key 1a is inserted into the key channel 3c, it engages in the channel 1d without resistance, as shown in FIG. 2. Shortly before the key 1 is fully inserted into the key channel 3c, a conical end face 4b of the mandrel 4 engages with a conical surface 5b at the inner end of the pin 5, as shown in FIG. 2. The same applies to the pin 10, which is omitted in FIGS. 2 and 3.

Wird nun der Schlüssel 1 weiter in den Schlüsselkanal 3c hineingeschoben, so wird gleichzeitig der Stift 5 radial nach aussen geschoben und schiebt dadurch gegen die Kraft einer Feder 2a den Kernstift 3a in einer radialen Bohrung 3b radial nach aussen und ordnet diesen ein. Gleichzeitig werden die übrigen hier nicht dargestellten Zuhaltungen durch die üblichen Senkbohrungen 1b eingeordnet.If the key 1 is now pushed further into the key channel 3c, the pin 5 is simultaneously pushed radially outward and thereby pushes the core pin 3a radially against the force of a spring 2a in a radial bore 3b to the outside and classifies it. At the same time, the other tumblers, not shown here, are classified by the usual counterbores 1b.

Der Stift 5 ist hier hantelförmig ausgebildet und wird durch eine Verengung 6a der Lagerhülse 6 am herausfallen aus dieser Hülse gehindert. Damit der Stift 5 in die Hülse 6a eingesetzt werden kann, ist diese aus mehreren Teilen zusammengesetzt.The pin 5 is dumbbell-shaped here and is prevented from falling out of this sleeve by a constriction 6a of the bearing sleeve 6. So that the pin 5 can be inserted into the sleeve 6a, it is composed of several parts.

Ist der Schlüssel ein Wendeschlüssel, so sind gemäss Fig. 1 zwei gegenüberliegende Stifte 5 vorgesehen, die durch den Dorn 4a nach aussen geschoben werden. Der Dorn 4a kann so ausgebildet sein, dass er die beiden gegenüberliegenden Stifte 5 mit unterschiedlichem Hub nach aussen bewegt, womit die Anzahl der Schliessmöglichkeiten erhöht werden kann. Dies kann beispielsweise durch einseitiges Abtragen des vorderen Endes des Stiftes 5 erreicht werden.If the key is a reversible key, two opposite pins 5 are provided according to FIG. 1, which are pushed outwards by the mandrel 4a. The mandrel 4a can be designed in such a way that it moves the two opposite pins 5 outwards with a different stroke, which can increase the number of locking options. This can be achieved, for example, by removing the front end of the pin 5 on one side.

Aus den obigen Angaben ergibt sich somit ein Schlüssel, der ausserordentlich schwierig zu kopieren ist und der trotzdem mit verhältnismässig wenigen, einfachen und robusten Bauteilen realisierbar ist. Aus den obigen Angaben ergibt sich zudem ein für diesen Schlüssel geeigneter Drehschliesszylinder, zu dessen Herstellung in der Produktion nur geringe Umstellungen erforderlich sind.A key results from the above information, which is extremely difficult to copy and which can nevertheless be implemented with relatively few, simple and robust components. The above information also shows a rotary lock cylinder suitable for this key, and only a few adjustments are required to manufacture it in production.

Claims (8)

  1. A key for a rotary lock cylinder and with, mounted for displacement in and crosswise in respect of the key shank (1a), at least one pin (5) with which it is possible to co-ordinate a tumbler (3a) of the rotary lock cylinder whereby there is a channel (1d) at the end face (1c) of the key shank (1a) and extending in the longitudinal direction of the latter and in that the displaceable pin (5) can be displaced radially outwards by a control member (4a) which needs to be inserted into this channel (1d), characterised in that the control member (4a) is a straight rod and pin (5) is disposed in a bore (1f) in the key shank (1a) which opens outwards on a narrow side (1e) of the key shank (1a) and at the other end in the channel (1d) and in that this pin can be retracted into this bore (1f) on the narrow side (1e) so that it does not protrude and in that the channel (1d) is a bore extending coaxially in respect of the central line through the key (1).
  2. A key according to claim 1, characterised in that the key has two oppositely disposed pins (5, 10) which can be displaced simultaneously radially outwardly by the rod (4a) which has to be inserted into the channel (1d).
  3. A key according to claim 2, characterised in that the two oppositely disposed pins (5) are outwardly displaceable in a radial direction by a different amount of travel.
  4. A key according to claim 3, characterised in that the different amount of travel is achieved by removal of material from one side of the front end of a pin (5).
  5. A key according to claim 1, characterised in that the pin (5) is mounted for relative displacement in a bearing sleeve (6).
  6. A key according to claim 5, characterised in that the pin (5) is dumbbell-shaped.
  7. A key according to claim 1, characterised in that it is a flat key with a plurality of flush bores (1b) which has to be co-ordinated with tumblers.
  8. A key according to claim 7, characterised in that flush bores are also disposed on the narrow sides (1e) of the key shank (1a).
EP91901669A 1990-01-17 1991-01-11 Key for a rotary lock cylinder Expired - Lifetime EP0463133B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH145/90 1990-01-17
CH14590A CH680935A5 (en) 1990-01-17 1990-01-17
PCT/CH1991/000011 WO1991010796A1 (en) 1990-01-17 1991-01-11 Key for a rotary lock cylinder

Publications (2)

Publication Number Publication Date
EP0463133A1 EP0463133A1 (en) 1992-01-02
EP0463133B1 true EP0463133B1 (en) 1994-10-12

Family

ID=4180277

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91901669A Expired - Lifetime EP0463133B1 (en) 1990-01-17 1991-01-11 Key for a rotary lock cylinder

Country Status (5)

Country Link
EP (1) EP0463133B1 (en)
CH (1) CH680935A5 (en)
DE (1) DE59103207D1 (en)
ES (1) ES2060355T3 (en)
WO (1) WO1991010796A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL104349A (en) * 1993-01-08 1997-01-10 Mul T Lock Ltd Locking apparatus
FR2714101B1 (en) * 1993-12-21 1996-03-08 Laperche Sa Safety barrel key for operating a lock and barrel operable by such a key.
IT1294198B1 (en) * 1997-09-09 1999-03-22 Italiana Serrature Affini CYLINDER LOCK WITH FLAT KEY PRESENTING A HOUSING FOR A TRANSLATING ELEMENT.
FR2777034B1 (en) * 1998-05-19 2001-05-18 Fontaine Sa MOBILE ELEMENT KEY AND LOCK CYLINDER USING SUCH KEY
FR2777033B1 (en) * 1998-04-03 2000-09-08 Fontaine Sa MOBILE ELEMENT KEY AND LOCK CYLINDER USING SUCH KEY
DE69910290T2 (en) * 1998-04-03 2004-07-01 Fontaine S.A. key
EP3280855B1 (en) * 2015-04-10 2020-05-20 ASSA ABLOY (Schweiz) AG Key and rotary lock cylinder

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE28668C (en) * A. PRILLWITZ in Kiel Innovation at the STYRIA - Schlofs
DE1093253B (en) * 1958-03-20 1960-11-17 Dr Wilhelm Geller Key for rotary cylinder lock
FR2604206B1 (en) * 1986-09-24 1988-12-30 Profalux LOCK KEY AND APPARATUS THEREFOR.

Also Published As

Publication number Publication date
DE59103207D1 (en) 1994-11-17
CH680935A5 (en) 1992-12-15
WO1991010796A1 (en) 1991-07-25
ES2060355T3 (en) 1994-11-16
EP0463133A1 (en) 1992-01-02

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