EP2826935B1 - Locking system - Google Patents

Description

The invention relates to a lock cylinder system according to the preamble of claim 1.

Such a lock cylinder system is for example from the document US 1 579 736 A known.

Attempts to overcome a locking system, are known in many ways, either by so-called picking or by drilling or drilling.

To prevent such an attack, drilling protection systems are installed in the lock cylinder.

Most drill protection variants provide as many carbide pins as possible, which are inserted into the cylinder housing and the cylinder core. In many cases, this is also effective enough.

The goal of the drill trial is always to move the latch mechanism of the door. For Euro profile cylinders, this is usually triggered by the cam rotation.

For the knob cylinder, there are other requirements for the Bohrschutz, since a large part of the lock cylinder / knob protrudes from the cylinder housing.

The object of the invention is to prevent a cam rotation in such a drill trial.

This object is achieved according to the invention in a lock cylinder system, comprising a cylinder housing with a rotatably mounted therein cylinder core, which can be coupled with a cam or an output system, via a insertable into a keyway mechanically and / or electronically encoded key or a knob spindle, and a in the cylinder housing in the area of the outside

Provided on the front side tapping, wherein in the cylinder housing and / or in the cylinder core in addition to the tapping at least one axially displaceable by a mechanical force acting on the tapping, the rotation of the cam or arranged between the cylinder core and driven system adapter blocking element is provided, characterized in that the Cylinder core is surrounded by an axially displaceable Bohrschutzhülse, which is in engagement with a cylinder housing axially displaceable locking pin, which penetrates during the displacement of the Bohrschutzhülse in the rotational range of the cam and thus prevents its rotation.

Here, the Bohrschutzhülse the responsive to the coding of the key, slidable in bores core and housing pins, corresponding holes, which block the movement of the core and housing pins with an axial displacement of the Bohrschutzhülse.

In a non-inventive embodiment it is provided that the blocking elements are designed as axially displaceable Bohrschutz blocking pins, which are arranged on both sides of the holes for the housing pins in the cylinder housing and can be brought with its remote from the end face of the cylinder housing end with the cam in engagement.

It is also possible in such an embodiment according to the invention that the bores for the housing pins in the cylinder housing in the area of the drill protection blocking pins have openings that the Bohrschutz blocking pins along their longitudinal extent have a number of groove-shaped recesses corresponding to the number of holes for the housing pins, which allow the normal movement of the housing pins perpendicular to the locking pins, with an axial displacement of the blocking pins but prevent their movement.

Finally, a training provided for Scandinavian lock cylinder is possible, is connected to the cylinder core with a rotary motion with the output system of the lock cylinder coupling adapter and designed as a blocking element surrounding the cylinder core, axially displaceable Bohrschutzhülse the engagement of a locking pin to prevent the rotational movement of the adapter or locks.

The solution according to the invention not only consists of a cylinder housing with hard metal drill protection, such as hard metal pins, but provides a mechanical solution in which the cam or / and the housing pins are blocked when the housing is drilled at certain locations. It is assumed that when drilling a correspondingly high force is applied in the axial direction of the cylinder housing, which triggers this mechanism.

The solution according to the invention will be explained in more detail with reference to the drawings.

• Fig. 1: Stiftzylinder mit Bohrschutz-Blockierstiften als ein nicht erfindungsgemäßes Ausführungsbeispiel
• Fig. 2: Schnitt mit glatten Bohrschutz-Blockierstiften als ein nicht erfindungsgemäßes Ausführungsbeispiel
• Fig. 3: Schnitt mit glatten Bohrschutz-Blockierstiften; linker Bohrschutz-Blockierstift ausgelöst als ein nicht erfindungsgemäßes Ausführungsbeispiel
• Fig. 4: Schnitt mit ausgenommenen, rillenförmigen Bohrschutz-Blockierstiften als ein nicht erfindungsgemäßes Ausführungsbeispiel
• Fig. 5: Schnitt mit ausgenommenen, rillenförmigen Bohrschutz-Blockierstiften als ein nicht erfindungsgemäßes Ausführungsbeispiel
• Fig. 6: Schnitt mit ausgenommenen, rillenförmigen Bohrschutz-Blockierstiften; linker Bohrschutz-Blockierstift ausgelöst als ein nicht erfindungsgemäßes Ausführungsbeispiel
• Fig. 7: Stiftzylinder mit Bohrschutz-Hülse
• Fig. 8: Schnitt Stiftzylinder mit Bohrschutz-Hülse
• Fig. 9: Schnitt Stiftzylinder mit Bohrschutz-Hülse; Bohrschutz ausgelöst
• Fig. 9a: Detaildarstellung: Schnitt Stiftzylinder mit Bohrschutz-Hülse; Bohrschutz ausgelöst
• Fig. 10: Knaufzylinder mit Bohrschutz-Hülse
• Fig. 11: Schnitt durch Knaufzylinder im Skandinavischen "ovalen" Zylindergehäuse

Showing:

• Fig. 1 : Pin cylinder with Bohrschutz-blocking pins as a non-inventive embodiment
• Fig. 2 : Section with smooth drill protection blocking pins as a non-inventive embodiment
• Fig. 3 : Cut with smooth drill protection locking pins; Left Bohrschutz-blocking pin triggered as a non-inventive embodiment
• Fig. 4 : Section with recessed, groove-shaped Bohrschutz-Blockierstiften as a non-inventive embodiment
• Fig. 5 : Section with recessed, groove-shaped Bohrschutz-Blockierstiften as a non-inventive embodiment
• Fig. 6 : Cut with recessed, groove-shaped anti-drilling locking pins; Left Bohrschutz-blocking pin triggered as a non-inventive embodiment
• Fig. 7 : Pin cylinder with drill protection sleeve
• Fig. 8 : Cut pin cylinder with drill protection sleeve
• Fig. 9 : Cut pin cylinder with drill protection sleeve; Drilling protection triggered
• Fig. 9a : Detail: Cut pin cylinder with drill protection sleeve; Drilling protection triggered
• Fig. 10 : Knob cylinder with drill protection sleeve
• Fig. 11 : Section through knob cylinder in the Scandinavian "oval" cylinder housing

FIG. 1 shows as a non-inventive embodiment in a schematic cross section a lock cylinder or a cylinder housing 1 with the cam 3. In the cylinder housing 1 - as usual - the cylinder core is rotatably mounted with the keyway.

From the FIG. 2 It can be seen that in addition to the known Bohrschutz 4 along the Housing pins 5 Bohrschutz-blocking pins 2 are arranged.

These Bohrschutz- blocking pins 2 are arranged in corresponding holes in the cylinder core, they in their normal position their position - as in the FIG. 2 shown - maintained.

In a manipulation attempt, a drill is usually attached in the area of the drill protection pins 4. Since this happens with considerable compressive force, lateral slippage of the drill can not be avoided.

In this case, however, the drill hits on the longitudinally displaceable Bohrschutz- blocking pins 2 and moves it in the axial direction on the cam.

As a result, they stand out - as in FIG. 3 shown in the pivoting range of the cam 3, so that it is prevented from complete rotation.

Further manipulation of the lock cylinder is not possible.

The FIGS. 4 to 6 show as a further non-inventive embodiment, a modification of this embodiment, namely, the holes in which the Bohrschutz- blocking pins 7 are longitudinally displaceable, running in the field of housing pin holes as chords.

Accordingly, the Bohrschutz- blocking pins 7 recesses 9.

The normal position is in the FIG. 5 shown, ie the housing pins 5 can move freely unhindered when a closing operation is performed.

After a manipulation attempt is the Bohrschutz- blocking pin 7 - as in the FIG. 6 shown - longitudinally displaced and blocked not only the pivoting movement of the cam 3 but also the radial displacement of the housing pins. 5

The above-described basic principle of an axial displacement of the Bohrschutzes is also in the embodiment of the FIGS. 7 to 10 been maintained.

This variant is particularly suitable for purchase cylinder, as for example in the FIG. 10 is shown.

In this case, the cylinder core is 8 ( FIG. 7 ) surrounded by a Bohrschutzhülse 10, which is mounted longitudinally displaceable. Near the cam 3 facing the end of the drill sleeve 10 is provided at this approach, namely a slide nose 12th As the FIGS. 8 to 9a show this slide nose with a longitudinal displacement of the Bohrschutzhülse, which in turn occurs after a tampering attempt and the slipping of the drill, with a blocking pin 13 into engagement.

This blocking pin is then displaced axially or longitudinally into the pivoting area of the locking bit, so that further manipulation is prevented.

In the FIG. 10 is illustrated by the example of a knob cylinder 14, as the Bohrschutzhülse 15 is arranged.

Finally, the shows FIG. 11 Yet another embodiment, namely a section through a knob cylinder in a Scandinavian "oval" cylinder housing.

Specifically, this is the knob labeled 14 and the tapping with 4, this one hand, as a round disc and on the other hand as Bohrschutzstift, as in the previous illustrations, is formed.

With 1, the cylinder housing and denoted by 8 of the cylinder core.

The output for this Scandinavian system is designated 20.

In this system, no cam is present, but an adapter 18 for the oval cylinder housing, which is connected to the cylinder core 8 - with appropriate coding of the key - connectable.

The drill sleeve 16 surrounds the cylinder core 8 in the manner previously described. However, it has no slide nose, but a transverse bore through which the radially inner end of a locking pin 17 which is arranged in a housing bore, under the pressure of the spring 19 can be pressed radially into a recess in the adapter 18 when the Bohrschutzhülse, in a manipulation , was moved axially, so that then the rotation of the adapter is prevented. This mode of operation corresponds to that which has been explained in the lock bit design.

LIST OF REFERENCE NUMBERS

1. 1 - cylinder housing
2. 2 - smooth drill protection pin
3. 3 - Locked
4. 4 - drill protection pin (drilling protection)
5. 5 - housing pin
6. 6 - core pin
7. 7 - Grooved drill protection pin
8. 8 - cylinder core
9. 9 - groove-shaped recess in Bohrschutz-Blockierstift
10. 10 - Drilling sleeve
11. 11 - Holes in the drill sleeve for the housing pins / core pins
12. 12 - Slide nose of the drill protection sleeve
13. 13 - blocking pin
14. 14 - Knob cylinder
15. 15 - Bore sleeve Pommel cylinder
16. 16 - Drilling sleeve with cross hole without slide-nose
17. 17 - Locking pin in housing pin hole
18. 18 - Adapter for oval cylinder housing
19. 19 - Compression spring for blocking pin
20. 20 - Downforce for Scandinavian system

Claims (3)

1. A lock cylinder system, comprising a cylinder housing (1) with a cylinder core (8) mounted rotatably therein which can be coupled with a lock bit (3) or an output system, namely by means of a mechanically and/or electronically coded key or a knob spindle which can be inserted into a keyway, and also drilling-out protection (4) provided in the cylinder housing in the region of the outside end face thereof, wherein at least one blocking element which is axially displaceable by a mechanical application of force on the drilling-out protection and which prevents the rotation of the lock bit or of an adapter arranged between the cylinder core and output system is provided in the cylinder housing (1) and/or in the cylinder core (8) in addition to the drilling-out protection (4),
   characterised in that
   the blocking element is designed as a drilling protection sleeve (10) surrounding the cylinder core (8) in axially displaceable manner, which sleeve can be brought into engagement with a blocking pin (13) which is axially displaceable in the cylinder housing, which pin upon the displacement of the drilling protection sleeve (10) prevents rotation of the lock bit.
2. A lock cylinder system according to Claim 1,
   characterised in that
   the drilling protection sleeve has bores corresponding to the core and housing pins (5) which respond to the coding of the key and are displaceable in bores, which first-mentioned bores upon axial displacement of the drilling protection sleeve block the movement of the core and housing pins.
3. A lock cylinder system according to Claim 1,
   characterised in that
   the cylinder core (8) is connected to an adapter (18) which couples the rotary movement thereof with the output system of the lock cylinder, and in that the axially displaceable drilling protection sleeve (16) which is designed as a blocking element and surrounds the cylinder core releases or blocks the engagement of a blocking pin (17) for preventing the rotary movement of the adapter (18).

Images