EP0160617B1 - Safety lock key - Google Patents

Safety lock key Download PDF

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Publication number
EP0160617B1
EP0160617B1 EP85810076A EP85810076A EP0160617B1 EP 0160617 B1 EP0160617 B1 EP 0160617B1 EP 85810076 A EP85810076 A EP 85810076A EP 85810076 A EP85810076 A EP 85810076A EP 0160617 B1 EP0160617 B1 EP 0160617B1
Authority
EP
European Patent Office
Prior art keywords
key
bores
tumbler pins
cylinder
depressions
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
EP85810076A
Other languages
German (de)
French (fr)
Other versions
EP0160617A1 (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
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT85810076T priority Critical patent/ATE38074T1/en
Publication of EP0160617A1 publication Critical patent/EP0160617A1/en
Application granted granted Critical
Publication of EP0160617B1 publication Critical patent/EP0160617B1/en
Expired 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
    • E05B19/00—Keys; Accessories therefor
    • E05B19/0017—Key profiles
    • E05B19/0023—Key profiles characterized by variation of the contact surface between the key and the tumbler pins or plates
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B19/00—Keys; Accessories therefor
    • E05B19/0017—Key profiles
    • E05B19/0041—Key profiles characterized by the cross-section of the key blade in a plane perpendicular to the longitudinal axis of the key
    • E05B19/0047—Key profiles characterized by the cross-section of the key blade in a plane perpendicular to the longitudinal axis of the key with substantially circular or star-shape cross-section

Definitions

  • the invention relates to a key according to the preamble of independent claim 1.
  • a key of this type has become known in the prior art, for example from DE-A-30 21 334. Dirt and dust can easily accumulate in the bores of this key on the contact surfaces for the tumbler pins and prevent their exact positioning. As a result, the lock jams and may not be able to be opened.
  • the Yale keys for example according to US-A-3 499 303 and GB-A-1 534 943, dirt present on the control surfaces is removed sideways from the key notches with each actuation, which is why the above-mentioned difficulty should not arise here.
  • the invention is based on the object. to create a key of the type mentioned, in which the disadvantages of known keys are largely avoided.
  • this is achieved in such a way that the bores in the key have annular depressions for receiving dirt on the contact surfaces interacting with the tumbler pins, in each case on the edge to the lateral surface of the bore.
  • the key according to the invention achieves a particularly advantageous appearance due to the light-reflecting effect of the depressions. Another advantage is that less dirt and dust gets into the lock cylinder, which increases locking security.
  • the key has several bores 3, which can be simple bores or stepped bores, which interact in a known manner with the tumbler pins in the locks.
  • the holes 3 each have an annular recess 1 in the contact surfaces 9 for the tumbler pins 7 (FIG. 3), in which dirt or dust can collect.
  • the depression 1 has an annular surface 8 which is inclined by approximately 20 ° to the conical lateral surface 5 with respect to the front surface 10 of the tumbler pin 7.
  • the annular recess 11 has an arcuate cross section.
  • any dust or dirt lying on the contact surfaces 9 is pushed by the tumbler pins 7 into the recesses 1, so that the exact positioning of the pins 7 is not hindered.
  • All or only some of the bores 3 can be provided with one or more depressions 1 and 11, respectively.

Abstract

1. Key for a rotary cylinder lock with spring-loaded tumbler pins (7) mounted in radially running bores of the cylinder, wherein the key is introduced into the key channel of the cylinder core to release the cylinder for rotation, and which by means of bores (3) sets the correct displacement position of the tumbler pins (7), characterized in that the bores (3) in the key (2) in the contact surfaces (9) cooperating with the tumbler pins (7) have annular depressions (1, 11) in each case at the edge to the surface (5) of the bore (3) to receive dirt.

Description

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

Im Stand der Technik ist beispielsweise durch die DE-A-30 21 334 ein Schlüssel dieser Art bekannt geworden. In den Bohrungen dieses Schlüssels können sich leicht Schmutz und Staub auf den Auflageflächen für die Zuhaltungsstifte ansammeln und eine genaue Positionierung derselben verhindern. Infolgedessen klemmt das Schloss und kann möglicherweise nicht mehr geöffnet werden. Bei den Yale-Schlüsseln, beispielsweise nach der US-A-3 499 303 und der GB-A-1 534 943 wird auf den Steuerflächen vorhandener Schmutz bei jeder Betätigung seitwärts aus den Schlüsselkerben ausgeschafft, weshalb hier die oben genannte Schwierigkeit nicht auftreten dürfte.A key of this type has become known in the prior art, for example from DE-A-30 21 334. Dirt and dust can easily accumulate in the bores of this key on the contact surfaces for the tumbler pins and prevent their exact positioning. As a result, the lock jams and may not be able to be opened. With the Yale keys, for example according to US-A-3 499 303 and GB-A-1 534 943, dirt present on the control surfaces is removed sideways from the key notches with each actuation, which is why the above-mentioned difficulty should not arise here.

Der Erfindung liegt nun die Aufgabe zugrunde. einen Schlüssel der eingangs genannten Art zu schaffen, bei welchem die Nachteile bekannter Schlüssel weitgehend vermieden werden.The invention is based on the object. to create a key of the type mentioned, in which the disadvantages of known keys are largely avoided.

Erfindungsgemäss wird dies so erreicht, dass die Bohrungen im Schlüssel in den mit den Zuhaltungsstiften zusammenwirkenden Auflageflächen jeweils am Rand zur Mantelfläche der Bohrung ringförmige Vertiefungen zur Aufnahme von Schmutz aufweisen.According to the invention, this is achieved in such a way that the bores in the key have annular depressions for receiving dirt on the contact surfaces interacting with the tumbler pins, in each case on the edge to the lateral surface of the bore.

Es hat sich gezeigt, dass der erfindungsgemässe Schlüssel durch die lichtreflektierende Wirkung der Vertiefungen ein besonders vorteilhaftes Aussehen erreicht. Ein weiterer Vorteil besteht darin, dass auch weniger Schmutz und Staub in den Schlosszylinder gelangt und damit die Schliessicherheit erhöht wird.It has been shown that the key according to the invention achieves a particularly advantageous appearance due to the light-reflecting effect of the depressions. Another advantage is that less dirt and dust gets into the lock cylinder, which increases locking security.

Ausführungsbeispiele der Erfindung werden anhand der Zeichnung näher erläutert. Es zeigen :

  • Fig. 1 eine Ansicht eines erfindungsgemässen Schlüssels,
  • Fig. 2 ein vergrösserter Ausschnitt von Fig 1,
  • Fig. 3 einen Schnitt durch ein Bohrloch nach einer ersten Variante, und
  • Fig. 4 einen Schnitt durch ein Bohrloch nach einer weiteren Variante.
Embodiments of the invention are explained in more detail with reference to the drawing. Show it :
  • 1 is a view of a key according to the invention,
  • 2 is an enlarged detail of FIG. 1,
  • Fig. 3 shows a section through a borehole according to a first variant, and
  • Fig. 4 shows a section through a borehole according to another variant.

Der Schlüssel besitzt mehrere Bohrungen 3, die einfache Bohrungen oder Stufenbohrungen sein können, die in bekannter Weise mit den Zuhaltungsstiften in den Schlössern zusammenwirken. Die Bohrungen 3 weisen in den Auflageflächen 9 für die Zuhaltungsstifte 7 (Fig. 3) je eine ringförmige Vertiefung 1 auf, in der sich Schmutz oder Staub sammeln kann. Die Vertiefung 1 weist bei der in Fig. 3 dargestellten Ausführung bezüglich der Frontfläche 10 des Zuhaltungsstiftes 7 eine um etwa 20° zur konischen Mantelfläche 5 hin geneigte Ringfläche 8 auf.The key has several bores 3, which can be simple bores or stepped bores, which interact in a known manner with the tumbler pins in the locks. The holes 3 each have an annular recess 1 in the contact surfaces 9 for the tumbler pins 7 (FIG. 3), in which dirt or dust can collect. In the embodiment shown in FIG. 3, the depression 1 has an annular surface 8 which is inclined by approximately 20 ° to the conical lateral surface 5 with respect to the front surface 10 of the tumbler pin 7.

Bei der in Fig. 4 dargestellten Ausführung besitzt die ringförmige Vertiefung 11 einen bogenförmigen Querschnitt.In the embodiment shown in Fig. 4, the annular recess 11 has an arcuate cross section.

Durch Reflexion des Lichtes in den Vertiefungen 1 bzw. 11 erscheinen auf den Mantelflächen 5 Lichtreflexe 6, so dass die Bohrungen 3 im Lichte funkeln und so den Schlüsseln ein vorteilhaftes Aussehen verleihen.By reflection of the light in the recesses 1 and 11 5 light reflections 6 appear on the lateral surfaces, so that the holes 3 sparkle in the light and thus give the keys an advantageous appearance.

Eventuell auf den Auflageflächen 9 liegender Staub oder Schmutz wird von den Zuhaltungsstiften 7 in die Vertiefungen 1 geschoben, so dass die genaue Positionierung der Stifte 7 nicht behindert wird. Es können alle oder nur ein Teil der Bohrungen 3 mit einer oder auch mehreren Vertiefungen 1 bzw. 11 versehen sein.Any dust or dirt lying on the contact surfaces 9 is pushed by the tumbler pins 7 into the recesses 1, so that the exact positioning of the pins 7 is not hindered. All or only some of the bores 3 can be provided with one or more depressions 1 and 11, respectively.

Claims (5)

1. Key for a rotary cylinder lock with springloaded tumbler pins (7) mounted in radially running bores of the cylinder, wherein the key is introduced into the key channel of the cylinder core to release the cylinder for rotation, and which by means of bores (3) sets the correct displacement position of the tumbler pins (7), characterized in that the bores (3) in the key (2) in the contact surfaces (9) cooperating with the tumbler pins (7) have annular depressions (1, 11) in each case at the edge to the surface (5) of the bore (3) to receive dirt.
2. Key according to Claim 1, characterized in that the depressions (1) are of V-shaped construction in cross-section, whereby in each case a side face is formed by the surface (5) of the sunken bore (3).
3. Key according to Claim 2, characterized in that the angle of inclination of a side face (8) with respect to the adjoining contact surface (9) is approximately 20°.
4. Key according to one of Claims 1 to 3, characterized in that the depression (1, Fig. 3) is arranged in a shoulder surface of a step bore.
5. Key according to Claim 1 or 4, characterized in that the depressions (11, Fig. 4) are approximately semi-circular in cross-section.
EP85810076A 1984-02-28 1985-02-26 Safety lock key Expired EP0160617B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85810076T ATE38074T1 (en) 1984-02-28 1985-02-26 KEY FOR A SECURITY LOCK.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH951/84 1984-02-28
CH951/84A CH663248A5 (en) 1984-02-28 1984-02-28 KEY.

Publications (2)

Publication Number Publication Date
EP0160617A1 EP0160617A1 (en) 1985-11-06
EP0160617B1 true EP0160617B1 (en) 1988-10-19

Family

ID=4198963

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85810076A Expired EP0160617B1 (en) 1984-02-28 1985-02-26 Safety lock key

Country Status (4)

Country Link
EP (1) EP0160617B1 (en)
AT (1) ATE38074T1 (en)
CH (1) CH663248A5 (en)
DE (1) DE3565703D1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2669366B1 (en) * 1990-11-21 1995-08-11 Bricard Sa NON-REPRODUCIBLE FOOTPRINT KEY AND BARREL FOR SAID KEY.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3499303A (en) * 1968-04-17 1970-03-10 Roy C Spain Cylinder lock
DE2551523C3 (en) * 1975-11-17 1982-03-18 Scovill Sicherheitseinrichtungen Gmbh, 5620 Velbert Group flat key for rotary cylinder locks in locking systems
DE3021334A1 (en) * 1980-06-06 1981-12-17 Ernst 8805 Richterswil Keller Cylinder lock series with increased setting variations - has additional key notch control faces for tumbler pin heads (AT 15.12.80)

Also Published As

Publication number Publication date
EP0160617A1 (en) 1985-11-06
DE3565703D1 (en) 1988-11-24
ATE38074T1 (en) 1988-11-15
CH663248A5 (en) 1987-11-30

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