EP0763639A1 - Pin tumbler - Google Patents

Pin tumbler Download PDF

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Publication number
EP0763639A1
EP0763639A1 EP96810552A EP96810552A EP0763639A1 EP 0763639 A1 EP0763639 A1 EP 0763639A1 EP 96810552 A EP96810552 A EP 96810552A EP 96810552 A EP96810552 A EP 96810552A EP 0763639 A1 EP0763639 A1 EP 0763639A1
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EP
European Patent Office
Prior art keywords
bolt
tip
locking
pin
head
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
EP96810552A
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German (de)
French (fr)
Other versions
EP0763639B1 (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.)
Individual
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Individual
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Filing date
Publication date
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Publication of EP0763639A1 publication Critical patent/EP0763639A1/en
Application granted granted Critical
Publication of EP0763639B1 publication Critical patent/EP0763639B1/en
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
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E05B27/0003—Details
    • E05B27/0017—Tumblers or pins
    • E05B27/0021—Tumblers or pins having movable parts

Definitions

  • the bolt tip 2 in the bolt head 3 is first shifted until its rear side 19 abuts the bottom 21 of the bore 5.
  • the bolt head 3 is then displaced radially outward to classify the housing pin.
  • the housing pin rests on the rear side 4 of the bolt head 3.
  • the pin 9 is countersunk in the bolt head 3 and, as mentioned, has no effect.
  • the locking pin 1 thus works essentially as a conventional locking pin when intended. If a vibration movement is exerted on the bolt tip 2 during an unauthorized unlocking attempt, this movement is essentially not transmitted to the rear side 4 of the bolt head 3 and is therefore ineffective.

Landscapes

  • Lock And Its Accessories (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Actuator (AREA)

Abstract

The bolt has a shaped head (3) whose shaft (16) slides inside the head mounting (3) with limited axial movement. The degree of freedom is controlled by a shaped outer ridge (7) around the shaft located in a widened section (6) of the mounting bore in the head mounting. A spring (5) between the inner end of the shaft and the inside of the mounting hole presses the bolt head outwards. The control plunger (9) has a sprung mounting inside the hollow shaft and extends out of the rear of the system.

Description

Die Erfindung betrifft einen Sperrbolzen für einen Drehschliesszylinder eines Sicherheitsschlosses, mit einer Bolzenspitze und einem Bolzenkopf, der mit seiner Rückseite zur Einordnung eines Gehäusestiftes an diesen anzulegen ist.The invention relates to a locking bolt for a rotary lock cylinder of a security lock, with a bolt tip and a bolt head, which is to be applied with its rear side to classify a housing pin thereon.

Sperrbolzen dieser Art sind seit langem bekannt. Sie werden auch Kernstifte genannt und bilden in einem Drehschliesszylinder den Teil der Zuhaltungen, der in einer radialen Stufenbohrung des Rotors gelagert ist. Solche Sperrbolzen sind beispielsweise durch die WO 87/05654 des Anmelders bekannt geworden. Diese weisen jeweils ein hülsenförmiges Schiebeelement auf, das ein Fixieren des Sperrbolzens bei einem Andrückversuch erschwert. Die Sicherheit von Drehschliesszylindern ist auch durch das sogenannte "Elektropicken" beeinträchtigt. Bei diesem wird mit einem Werkzeug der Rotor um seine Drehachse mit einem bestimmten Drehmoment gespannt und gleichzeitig werden die Zuhaltungen durch Vibration radial nach aussen bewegt, bis sämtliche Gehäusestifte hinter der durch die Verdrehung des Rotors gebildeten Schulter liegen und der Rotor schliesslich zur Drehung freigegeben ist. Solche unbefugten Aufsperrversuche beeinträchtigen die Aufsperrsicherheit von Drehschliesszylindern. Unter Aufsperrsicherheit versteht der Fachmann den Grad der Erschwerung, die Zuhaltungen eines Drehschliesszylinders gewaltlos mit Hilfsmitteln ohne Kenntnis des zugehörigen Schlüssels zerstörungsfrei zu überwinden.Locking bolts of this type have been known for a long time. They are also called core pins and form the part of the tumblers in a rotary lock cylinder that is mounted in a radial stepped bore of the rotor. Such locking bolts have become known, for example, from WO 87/05654 by the applicant. These each have a sleeve-shaped sliding element, which makes it more difficult to fix the locking bolt in the event of a pressure attempt. The security of rotary lock cylinders is also impaired by the so-called "electropick". In this, the rotor is clamped with a certain torque around its axis of rotation with a tool and at the same time the tumblers are moved radially outwards by vibration until all housing pins are behind the shoulder formed by the rotation of the rotor and the rotor is finally released for rotation. Such unauthorized unlocking attempts affect the Unlocking security of rotary lock cylinders. Unlocking security is understood by the person skilled in the art to mean the degree of difficulty in non-destructively overcoming the tumblers of a rotary lock cylinder with auxiliary means without knowledge of the associated key.

Der Erfinder hat sich die Aufgabe gestellt, die genannten unbefugten Aufsperrversuche zu verunmöglichen oder wenigstens wesentlich zu erschweren. Die Aufgabe ist erfindungsgemäss bei einem genannten Sperrbolzen dadurch gelöst, dass die Bolzenspitze zwischen einer inneren und einer äusseren Stellung begrenzt verschiebbar am Bolzenkopf gelagert ist.The inventor has set himself the task of making the aforementioned unauthorized unlocking attempts impossible or at least significantly more difficult. The object is achieved according to the invention in the case of a locking bolt mentioned in that the bolt tip is mounted on the bolt head such that it can be displaced to a limited extent between an inner and an outer position.

Vorteilhafte Weiterbildungen ergeben sich aus den abhängigen Patentansprüchen und der nachfolgenden Beschreibung sowie der Zeichnung.Advantageous further developments result from the dependent claims and the following description and the drawing.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnung näher erläutert. Es zeigen:

Fig. 1
einen Längsschnitt durch einen erfindungsgemässen Sperrbolzen,
Fig. 2
eine Ansicht eines Teils des Sperrbolzens,
Fig. 3
einen Schnitt durch den Bolzenkopf, und
Fig. 4
einen Schnitt durch die Bolzenspitze.
An embodiment of the invention is explained below with reference to the drawing. Show it:
Fig. 1
2 shows a longitudinal section through a locking bolt according to the invention,
Fig. 2
a view of part of the locking pin,
Fig. 3
a section through the bolt head, and
Fig. 4
a cut through the tip of the bolt.

Der in der Zeichnung gezeigte Sperrbolzen 1 weist einen Bolzenkopf 3 auf, in dem eine Bolzenspitze 2 sowie ein Stift 9 verschiebbar gelagert sind. Die Bolzenspitze 2 besitzt einen zapfenförmigen Ansatz 16, an dem diese in einer Längsbohrung 5 des Bolzenkopfes 3 begrenzt längsverschiebbar ist. Eine Druckfeder 8 ist am Bolzenkopf 3 und an einer Rückseite 19 der Bolzenspitze 2 abgestützt und hält die Spitze 2 in der gezeigten äusseren Stellung, welche durch einen Anschlag eines ringförmigen Ansatzes 7 an einer Schulter 17 definiert ist. Die Schulter 17 wird durch eine ringförmige Ausnehmung 6 in der Innenseite der Bohrung 5 gebildet. Die Bolzenspitze 2 kann gegen die rückwirkende Kraft der Feder 8 aus der gezeigten äusseren Stellung in die Bohrung 5 hinein bis zu einem Anschlag der Rückseite 19 der Spitze 2 am Boden 21 der Bohrung 5 verschoben werden. Die Kraft der Feder 8 ist wesentlich kleiner als die Kraft der hier nicht gezeigten üblichen Gehäusefeder, welche den zugehörigen Gehäusestift rückseitig beaufschlagt.The locking bolt 1 shown in the drawing has a bolt head 3, in which a bolt tip 2 and a pin 9 are slidably mounted. The bolt tip 2 has a peg-shaped extension 16 on which it can be displaced longitudinally to a limited extent in a longitudinal bore 5 of the bolt head 3. A compression spring 8 is supported on the bolt head 3 and on a rear side 19 of the bolt tip 2 and holds the tip 2 in the outer position shown, which is shown by a stop of an annular extension 7 on a shoulder 17 is defined. The shoulder 17 is formed by an annular recess 6 in the inside of the bore 5. The bolt tip 2 can be moved against the retroactive force of the spring 8 from the outer position shown into the bore 5 up to a stop on the rear side 19 of the tip 2 at the bottom 21 of the bore 5. The force of the spring 8 is significantly smaller than the force of the usual housing spring, not shown here, which acts on the rear of the associated housing pin.

Damit die Bolzenspitze 2 in den Bolzenkopf 3 eingesetzt werden kann und mit diesem unverlierbar verbunden ist, weist der Bolzenkopf 3 gemäss Figur 3 vier Schlitze 15 auf, welche radial federnde Lappen 20 bilden. Beim Einsetzen der Bolzenspitze 2 in die Bohrung 5 wird der ringförmige Ansatz 7 unter Spreizung der Lappen 20 in die Ausnehmung 6 eingerastet. Die Bolzenspitze 2 ist damit sicher im Bolzenkopf 3 gehalten und zudem ist eine einfache und automatisierbare Montage möglich.So that the bolt tip 2 can be inserted into the bolt head 3 and is captively connected to it, the bolt head 3 according to FIG. 3 has four slots 15 which form radially resilient tabs 20. When inserting the pin tip 2 into the bore 5, the annular extension 7 is snapped into the recess 6 with the flaps 20 spread. The bolt tip 2 is thus securely held in the bolt head 3 and, moreover, simple and automatable assembly is possible.

In den zapfenförmigen Ansatz 16 ist rückseitig eine Sackbohrung 12 eingearbeitet, in die ein Stift 9 eingreift, der in einer weiteren Bohrung 11 des Bolzenkopfs 3 gelagert ist. In der in Figur 1 gezeigten Stellung ist der Stift 9 durch die Druckfeder 10 mit einer Schulter 14 eines Kopfes 13 am Boden 21 der Bohrung 5 angelegt. In dieser Stellung ragt der Stift 9 über die Rückseite 4 des Bolzenkopfs 3 hinaus. Ist der Sperrbolzen 1 in einen Drehschleisszylinder eingesetzt, so ist der Stift 9 durch die Wirkung der wesentlich stärkeren Gehäusefeder versenkt und die Rückseite 23 des Stifts 9 ist bündig mit der Rückseite 4 des Bolzenkopfs 3. Der Stift 9 hat bei einer üblichen Betätigung des Schliesszylinders keine Wirkung und dient lediglich als Sperrelement bei einem unbefugten Aufsperrversuch. Hierzu wird auch auf die oben genannte WO 87/05654 verwiesen. Denkbar ist auch eine Ausführung, bei welcher dieser Sperrstift 9 weggelassen ist. Im Bolzenkopf 3 sind dann entsprechend die Bohrung 11 und in der Bolzenspitze 2 die Bohrung 12 sowie die Druckfeder 10 weggelassen.A blind bore 12 is worked into the rear of the peg-shaped extension 16, into which a pin 9 engages, which is mounted in a further bore 11 of the bolt head 3. In the position shown in Figure 1, the pin 9 is applied by the compression spring 10 with a shoulder 14 of a head 13 on the bottom 21 of the bore 5. In this position, the pin 9 protrudes beyond the rear 4 of the bolt head 3. If the locking pin 1 is inserted into a rotary lock cylinder, the pin 9 is sunk by the effect of the much stronger housing spring and the back 23 of the pin 9 is flush with the back 4 of the bolt head 3. The pin 9 has none when the lock cylinder is operated normally Effect and only serves as a locking element in an unauthorized attempt to unlock. For this purpose, reference is also made to the above-mentioned WO 87/05654. An embodiment is also conceivable in which this locking pin 9 is omitted. The bore 11 in the bolt head 3 and the bore 12 and the compression spring 10 in the bolt tip 2 are then omitted accordingly.

Wird bei eingesetztem Sperrbolzen 1 ein zugehöriger Schlüssel in den Schlüsselkanal des Rotors eingesetzt, so wird zunächst die Bolzenspitze 2 im Bolzenkopf 3 soweit verschoben, bis ihre Rückseite 19 am Boden 21 der Bohrung 5 ansteht. Anschliessend wird der Bolzenkopf 3 zur Einordnung des Gehäusestiftes radial nach aussen verschoben. Hierbei liegt der Gehäusestift an der Rückseite 4 des Bolzenkopfs 3 an. Der Stift 9 ist dabei im Bolzenkopf 3 versenkt und ist wie erwähnt ohne Wirkung. Der Sperrbolzen 1 arbeitet bei vorgesehener Verwendung somit im wesentlichen wie ein üblicher Sperrbolzen. Wird bei einem unbefugten Aufsperrversuch auf die Bolzenspitze 2 eine Vibrationsbewegung ausgeübt, so wird diese Bewegung im wesentlichen nicht auf die Rückseite 4 des Bolzenkopfs 3 übertragen und ist damit wirkungslos.If an associated key is inserted into the key channel of the rotor when the locking bolt 1 is inserted, the bolt tip 2 in the bolt head 3 is first shifted until its rear side 19 abuts the bottom 21 of the bore 5. The bolt head 3 is then displaced radially outward to classify the housing pin. Here, the housing pin rests on the rear side 4 of the bolt head 3. The pin 9 is countersunk in the bolt head 3 and, as mentioned, has no effect. The locking pin 1 thus works essentially as a conventional locking pin when intended. If a vibration movement is exerted on the bolt tip 2 during an unauthorized unlocking attempt, this movement is essentially not transmitted to the rear side 4 of the bolt head 3 and is therefore ineffective.

Ein Drehschliesszylinder kann einen oder mehrere Sperrbolzen 1 aufweisen, vorzugsweise sind aber mehrere Sperrbolzen 1 eines Zylinders erfindungsgemäss ausgebildet.A rotary lock cylinder can have one or more locking bolts 1, but preferably a plurality of locking bolts 1 of a cylinder are designed according to the invention.

Claims (10)

Sperrbolzen für einen Drehschliesszylinder eines Sicherheitsschlosses, mit einer Bolzenspitze (2) und einem Bolzenkopf (3), der mit seiner Rückseite (4) zur Einordnung eines Gehäusestiftes an diesen anzulegen ist, dadurch gekennzeichnet, dass die Bolzenspitze (2) zwischen einer inneren und einer äusseren Stellung begrenzt verschiebbar am Bolzenkopf (3) gelagert ist.Locking bolt for a rotary lock cylinder of a security lock, with a bolt tip (2) and a bolt head (3), which is to be placed on its rear side (4) to arrange a housing pin, characterized in that the bolt tip (2) between an inner and an outer position is limitedly displaceable on the bolt head (3). Sperrbolzen nach Anspruch 1, dadurch gekennzeichnet, dass der Bolzenkopf (3) eine Längsbohrung (5) aufweist, in welcher die Bolzenspitze (2) verschiebbar gelagert ist.Locking bolt according to claim 1, characterized in that the bolt head (3) has a longitudinal bore (5) in which the bolt tip (2) is slidably mounted. Sperrbolzen nach Anspruch 2, dadurch gekennzeichnet, dass die Längsbohrung (5) eine Sackbohrung ist, an deren Boden (21) die Bolzenspitze (2) in der inneren Stellung anliegt.Locking bolt according to claim 2, characterized in that the longitudinal bore (5) is a blind bore, on the bottom (21) of which the bolt tip (2) lies in the inner position. Sperrbolzen nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die Längsbohrung (5) eine seitliche Ausnehmung (6) aufweist, in welche ein Ansatz (7) der Bolzenspitze (2) eingerastet ist.Locking bolt according to claim 2 or 3, characterized in that the longitudinal bore (5) has a lateral recess (6) into which an extension (7) of the bolt tip (2) is engaged. Sperrbolzen nach einem der Ansprüche 2 bis 4, gekennzeichnet durch ein Federelement (8), das im Bolzenkopf (3) gelagert ist und die Bolzenspitze (2) in Ruhestellung in der äusseren Stellung hält.Locking pin according to one of claims 2 to 4, characterized by a spring element (8) in the bolt head (3) is mounted and holds the pin tip (2) in the rest position in the outer position. Sperrbolzen nach Anspruch 5, dadurch gekennzeichnet, dass die Bolzenspitze (2) gegen die rückwirkende Kraft des Federelementes (8) von der äusseren Stellung in eine innere Stellung verschiebbar ist.Locking bolt according to claim 5, characterized in that the bolt tip (2) against the retroactive force of the spring element (8) is displaceable from the outer position to an inner position. Sperrbolzen nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass im Bolzenkopf (3) ein Sperrstift (9) gelagert ist, der an der Rückseite (4) des Bolzenkopfes (3) aus diesem herausragt und der gegen die rückwirkende Kraft eines Federelementes (10) im Bolzenkopf (3) versenkbar ist.Locking bolt according to one of claims 1 to 6, characterized in that a locking pin (9) is mounted in the bolt head (3), which protrudes from the rear side (4) of the bolt head (3) and which acts against the retroactive force of a spring element ( 10) is retractable in the bolt head (3). Sperrbolzen nach Anspruch 7, dadurch gekennzeichnet, dass das auf den Stift (9) wirkende Federelement (10) in einer Längsbohrung (12) der Bolzenspitze (2) angeordnet ist.Locking pin according to claim 7, characterized in that the spring element (10) acting on the pin (9) is arranged in a longitudinal bore (12) of the pin tip (2). Sperrbolzen nach Anspruch 8, dadurch gekennzeichnet, dass die Längsbohrung (12) der Bolzenspitze (2) in einen zapfenförmigen Ansatz (16) der Bolzenspitze (2) eingearbeitet ist.Locking bolt according to claim 8, characterized in that the longitudinal bore (12) of the bolt tip (2) is machined into a peg-shaped extension (16) of the bolt tip (2). Drehschliesszylinder mit wenigstens einem Sperrbolzen gemäss Anspruch 1.Rotary lock cylinder with at least one locking pin according to claim 1.
EP96810552A 1995-09-15 1996-08-21 Pin tumbler and lock cylinder with such a pin tumbler Expired - Lifetime EP0763639B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH2607/95 1995-09-15
CH260795 1995-09-15
CH260795 1995-09-15

Publications (2)

Publication Number Publication Date
EP0763639A1 true EP0763639A1 (en) 1997-03-19
EP0763639B1 EP0763639B1 (en) 2004-09-15

Family

ID=4237575

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810552A Expired - Lifetime EP0763639B1 (en) 1995-09-15 1996-08-21 Pin tumbler and lock cylinder with such a pin tumbler

Country Status (7)

Country Link
EP (1) EP0763639B1 (en)
AR (1) AR003593A1 (en)
AT (1) ATE276416T1 (en)
AU (1) AU711775B2 (en)
BR (1) BR9603762A (en)
DE (1) DE59611085D1 (en)
ES (1) ES2227576T3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1582662A1 (en) * 2004-02-18 2005-10-05 CISA S.p.A. Lock with tamper-resistant elements and associated key
ITTO20120466A1 (en) * 2012-05-30 2013-12-01 Mottura Serrature Di Sicurezza SAFETY LOCK
EP3103943A1 (en) 2015-06-11 2016-12-14 Rav Bariach (08) Industries Ltd. Improved lock

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2158501A (en) * 1938-08-03 1939-05-16 Independent Lock Co Tumbler lock
DE2038039A1 (en) * 1970-07-31 1972-02-10 Josef Voss KG, 5040 Bruhl Lock cylinder
DE8534096U1 (en) * 1985-12-04 1986-01-30 Percic, Mladen, 6000 Frankfurt Cylinder lock with a locking device
WO1987005654A1 (en) * 1986-03-13 1987-09-24 Ernst Keller Tumbler for cylindrical lock
AT395262B (en) * 1989-05-31 1992-11-10 Evva Werke Cylinder lock for flat keys and an associated key
US5222383A (en) * 1992-05-08 1993-06-29 Tong-Lung Metal Industry Co., Ltd. Cylinder lock

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5844832B2 (en) * 1979-12-28 1983-10-05 株式会社 ゴ−ル pin tumbler lock

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2158501A (en) * 1938-08-03 1939-05-16 Independent Lock Co Tumbler lock
DE2038039A1 (en) * 1970-07-31 1972-02-10 Josef Voss KG, 5040 Bruhl Lock cylinder
DE8534096U1 (en) * 1985-12-04 1986-01-30 Percic, Mladen, 6000 Frankfurt Cylinder lock with a locking device
WO1987005654A1 (en) * 1986-03-13 1987-09-24 Ernst Keller Tumbler for cylindrical lock
AT395262B (en) * 1989-05-31 1992-11-10 Evva Werke Cylinder lock for flat keys and an associated key
US5222383A (en) * 1992-05-08 1993-06-29 Tong-Lung Metal Industry Co., Ltd. Cylinder lock

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1582662A1 (en) * 2004-02-18 2005-10-05 CISA S.p.A. Lock with tamper-resistant elements and associated key
ITTO20120466A1 (en) * 2012-05-30 2013-12-01 Mottura Serrature Di Sicurezza SAFETY LOCK
EP3103943A1 (en) 2015-06-11 2016-12-14 Rav Bariach (08) Industries Ltd. Improved lock

Also Published As

Publication number Publication date
AR003593A1 (en) 1998-08-05
ATE276416T1 (en) 2004-10-15
AU711775B2 (en) 1999-10-21
EP0763639B1 (en) 2004-09-15
AU6562296A (en) 1997-03-20
ES2227576T3 (en) 2005-04-01
DE59611085D1 (en) 2004-10-21
BR9603762A (en) 1998-06-02

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