EP0943757A1 - Securtiy escutcheon for cylinderlocl - Google Patents

Abstract

The safety rosette beneath the closure cylinder is firmly screwed especially by two screws to the door panel. Above the closure cylinder the safety rosette is firmly connected with a covered insert bolt (14) which is pressed into a blind recess of the door panel. For firm connection of the insert bolt with the safety rosette a screw connection (15) or a press connection is available. The insert bolt on its insertion periphery (14') engaging in the blind recess is provided with projections preventing withdrawal.

Description

The invention relates to a security escutcheon on a locking cylinder that protrudes from a door leaf Cylinder end form-fitting against twisting, and only below the lock cylinder by means of in particular two screws firmly screwed to the door leaf is.

A security rosette with the aforementioned features is known from German utility model 295 19 830. The screwing of the security escutcheon only below of the lock cylinder is due to the fact that above the locking cylinder is screwed through the door leaf not through because of the castle there is possible. In order to achieve sufficient attachment anyway To get the security escutcheon on the door leaf is the screw connection duplicated below the locking cylinder, i.e. there are two connecting screws arranged one above the other through an inner rosette of the door leaf screwed into threaded bushings, which in turn with the Security rosette are screwed. The well-known security rosette is also in the area of the locking cylinder provided with an insert that serves as cylinder core protection slipped over the locking cylinder and on both sides with Threaded screws are screwed tight. This allows thread protrusions compensate. The well-known security rosette has the significant disadvantage that above the lock cylinder there is no connection to the door leaf. Therefore the well-known security rosette at least a very stable one Have training so that due to such stability At least there is a risk of a violent breakup at this point is reduced. Such a stable training is also however, disadvantageous because it is bulky and requires a lot of production requires and also uses little, if the door leaf is unstable.

The invention is therefore based on the object Security rosette with the characteristics mentioned above too improve that the risk of breaking open above the lock cylinder is significantly reduced, even with otherwise simplified Design of the security rosette.

This problem is solved in that the security rosette with a hidden one above the lock cylinder Insert bolt is firmly connected in a pocket recess of the door leaf is pressed in to prevent it.

It is important for the invention that it is no longer it is possible to close their top edge with a demolition tool reach behind and force the rosette off the door leaf, because the lever arm up from the top edge of the rosette for screwing them under the locking cylinder very much is great. The insert pin reliably prevents the violent Penetration of a demolition tool so deep that the necessary lever arm to press the rosette on results. In addition, the insertion pin with the security escutcheon firmly connected and in the sack recess of the Door leaf pressed out, so that it with usual Tools are not levered out of the bag recess can. Any tilting of the security escutcheon leads to a corresponding tilting of the insert bolt and a resulting increase in spreading resistance this insert bolt. As a result, it is possible Train security rosettes so that they are practically the same Offer security, like long plate fittings, their long plate covers both the lock cylinder area as well the handle area of a door.

The security rosette can be designed so that as a fixed connection between the insert bolt and the safety escutcheon a screw connection or a press connection available is. The screw connection can be sufficiently stable be trained in what is the desired burglar resistance is. In addition, the screw connection enables that the insert pin can also be omitted. This is necessary if necessary when manufacturing the door leaf not allow a sack recess. That would be, for example then the case when in the area of the necessary Sack recess fittings are available.

A further improvement in the spreading security of the The safety rosette's insertion pin is achieved that the plug-in bolt engaging in the sack recess Plug-in scope with protrusions to be removed is provided. The protrusions to be removed apply pressing the insert bolt into the pocket recess in the material of the door leaf, so that a violent Pull out without special tools and without destroying the Door leaf is no longer possible.

A constructively appropriate design of the to be inhibited Projections are achieved in that the insertion pin with its insertion circumference is a threaded bolt, the If necessary, the outer diameter is larger than its fastening diameter on the security escutcheon. Such a Threaded bolt has a large number to be prevented over its length Projections on, all of the spreading security improve. In addition, the threaded bolt is suitable for mass production Part. His education is special stable if its outside diameter is larger than its mounting diameter on the security escutcheon with which he is preferably connected via the screw connection.

It is possible to use the security escutcheon in a more familiar way Form in one piece. But it is more advantageous if directly or with a spacer on the door leaf has adjacent base part that of a cover part with the screwing below the locking cylinder on Door leaf is clamped, if necessary positively parallel to the door leaf. Due to the design of the Security rosette becomes its well-known, essentially one-piece Leave training. The security rosette is in Principle in two parts. This creates greater variability in the form of what is achieved in the sense exploited an increase in the security effect of the rosette can be. This provides the basic possibility cavities inside the security rosette create, i.e. save material, without the security against break-in thereby belittling. Clamping the base part by means of the cover part can be done so that a violent Unlocking the security escutcheon is not possible. That is already possible if the base part is clamped with the cover part is only non-positively. Another Improvement in clamping results from the fact that Clamping can also be done positively, namely in parallel to the door leaf. Grip the base part and the cover part thus so interlocking that their two parts the security against opening of the rosette does not deteriorate.

The security rosette can be designed so that the base part is a door leaf-side base plate with a all around protruding outer edge. The protruding one The outer edge stabilizes the base plate and thus the base part. If necessary, it also permits an appealing exterior design the security rosette, as far as it is visible.

Another training of a security rosette with a Outer edge can be done in such a way that from the base plate inside the outer edge for the Lock cylinder and / or screw fastening piece of the cover part and / or for a screw connection of the Project the insertion pin. The borders for the Lock cylinders protect it against violent manipulation, especially if they or if the base part from accordingly resistant material, such as Stainless steel. Also the surrounding edges for screw fasteners of the cover part and / or for a screw connection the insert bolt serve for stabilization the base plate and the aggravation of violent Tampering with the security escutcheon.

Regarding the aforementioned screw connector can the security rosette be designed so that the Screw connection piece with the cover part are in one piece and each engage in a door leaf hole. The engagement the screw connection in door leaf holes improved the stability of the seat of the security escutcheon on the door leaf and the rigidity of the multi-part safety rosette in yourself.

A further development of the security escutcheon is emerging characterized in that the cover part a visible cover plate with an outer wall projecting all the way around the door leaf having. With the cover plate of the cover part that is Base part covered, so that its design from the outside is not visible. This effect can be caused by the door leaf projecting outer wall to be reinforced. Also the outer wall stabilizes the security escutcheon.

The cover part and the base part can be in different Be coordinated constructively. If the cover part with its outer wall comprises the base part and is pressed onto this outer edge with its cover plate, the base part is practically invisible from the outside because it is is covered with the cover as much as possible. It can giving the impression of a massive security escutcheon.

If the security rosette is designed so that Cover part with its outer wall within the outer edge of the Base part is pressed on the base plate, results a particularly effective pressing of the base part or Base plate on the door leaf and reduced manipulation on the outer wall of the cover part. It is less Meaning that the outer edge of the base part at this configuration is free because it is practically not bent can be and the intrusion security essentially determined by the pressure of the base plate on the door leaf is.

A further development of the security escutcheon can thereby be achieved that the cover part covers a locking cylinder, the housing front with a core front is the same, with the cover part leaving the cylinder core free Hole. With such a configuration of the rosette an unchanged locking cylinder can be used, that is, one located below the cylinder core Housing area is not shortened to one here Record the wall thickness of the security escutcheon.

So that the security escutcheon from its top edge cannot be forcibly lifted, it is designed so that their top edge from the insertion circumference of the insertion pin is less distant than its thickness. In this training is between the plug and the Top edge of an extremely low lever arm, the violent manipulations also with regard to the thickness of the insert bolt does not allow.

The security rosette can be designed so that the cover part with the screws against a housing end face of the lock cylinder is tensioned, and that the base part exclusively from the insert pin and if necessary from one Screw connection is held on the door leaf. Such an arrangement occurs when the locking cylinder with its housing face protrudes further out of the door leaf than it does Distance of the inner wall of the cover plate of the cover part from Door leaf corresponds. In this way it is possible to overlength of the locking cylinder without the security rosette or to change their cover part. There the cover part in such a case an excess length Lock cylinder no longer presses on the base part and this so that no longer fixes on the door leaf must on others Way to be secured for the attachment of the base part. This takes place exclusively through the plug-in bolt, which is the result except for securing the upper end of the security escutcheon has another benefit, namely that of definition of the base part on the door leaf. If such a determination not sufficient, an additional screw connection may be required of the base part on the door leaf, what is particularly useful if between the door leaf and the base part spacer plates are used.

Fig.1

eine perspektivische Explosionszeichnung der Teile der Sicherheitsrosette,

Fig.2

eine Längsschnittdarstellung einer an einem Türblatt angebrachten und mit einem Sicherheitsschließzylinder zusammengebauten Sicherheitsrosette,

Fig.3

eine Aufsicht auf die Sicherheitsrosette der Fig.2, und

Fig.4

eine weitere Ausführungsform einer Sicherheitsrosette mit einem besonderen Detail am Rand.

The invention is explained with reference to exemplary embodiments shown in the drawing. It shows:

Fig. 1

an exploded perspective view of the parts of the security escutcheon,

Fig. 2

2 shows a longitudinal sectional illustration of a security escutcheon attached to a door leaf and assembled with a security locking cylinder,

Fig. 3

a supervision of the security rosette of Fig.2, and

Fig. 4

a further embodiment of a security rosette with a special detail on the edge.

Fig.1 shows essentially several elongated oval flat parts with coordinated outer dimensions. Two of these can be understood as functional units. An abutment plate 19 and a cover cap 20 covering this essentially form an inner plate 9 of a door leaf 12, a base part 16 and a cover part 17 a security rosette 10 attached to the outside of the door leaf 12. The parts of the security rosette 10 and the inner plate 9 have in their upper half in each case a recess 16 ^IV , 19 'or 20' which is suitable for positively enclosing a cylinder end 11 'of a locking cylinder 11 protruding from a door leaf 12 (see FIG. 2). In the cover part 17 is a hole 17 ^IV , which essentially leaves an end face of the core of the locking cylinder 11 ″ free.

All parts 16, 17, 19 and 20 have stiffening ribs. Cross and longitudinal stiffening ribs 20 ″ abut a vertically circumferential edge 20 ″ ″ of the cover cap 20 of the inner plate 9. In the base part 16, the stiffening ribs rest on the base plate 16 'or are made in one piece with it. The base part 16 has a circumferential edge on a shape 16 ^{IV which is} adapted to the cylinder end 11 'and which has a step 16 ^VII . This gradation 16 ^VII lies at the transition from a head of the formation 16 ^IV to a foot of the formation 16 ^IV . All circumferential edges around the bushings 16 ^V , the longitudinal ribs between them and the edge around the foot part of the formation 16 ^IV have the same height with respect to the base plate 16 ′ in order to support the cover part 17. The head of the recess 16 ^IV is surrounded by an edge with a different height. Adjacent to the gradation 16 ^VII and the edge surrounding the head of the formation is an annular cylinder hole glider 18 which can be inserted through the opening 17 ^IV and has holding projections 18 'which engage behind the cover part 17.

Bushings 16 ^{V are} provided in the lower half of the base part 16 below the recesses 16 ^IV for the locking cylinder 11. Openings 19 ″ with depressions 19 ″ ″ are located in the abutment plate 19 (see FIG. 2). Screws 13 (see FIG. 2) can be inserted through the openings 19 ″ and through bores 22 in the door leaf 12 from one side 12 ^{V of} the door leaf 12 to the other side 12 ^VI and screwed into the cover part 17 on screw fastening sockets 17 ″ ″. Such a screw connection is unsolvable from the outside. The screw fastening sockets 17 '''engage in the door leaf in a form-locking manner and have a long engagement thread which is able to transmit very high tightening forces.

In the upper half of the base part 16 there is a further recess 16 ^VI above the recess 16 ^IV for the locking cylinder end 11 ′, which recess is suitable for receiving an insert bolt 14. The free end 14 'of the insertion pin 14 is pressed into a pocket recess 12' of the door leaf 12 (see FIG. 2).

2 shows a longitudinal sectional view of a security rosette 10 assembled with a door leaf 12 with a security locking cylinder 11. The parts 19 and 20 of the inner plate 9 are arranged on the inside 12 ^{V of} the door leaf 12, while the parts 16 and 17 of the security rosette 10 on the outside 12 ^VI are arranged. In a recess 12 '''perpendicular to the door leaf 12 there is a locking cylinder 11 which is fastened to the end face of the door leaf 12 with a forend screw, not shown, which engages in a threaded hole 21 of the locking cylinder 11.

The cover 17 has in the lower half below the hole 17 ^IV screw mounting 17 '''. These screw fastening sockets 17 '''extend through the base part 16 into the door leaf 12 into a respective door leaf bore 12''. The screw fastening sockets 17 '''are provided with an internal thread. The screws 13 are screwed through the door leaf 12 into the screw fastening connection 17 '''of the cover part 17. On the abutment plate 19 of the inner shield 9 there are counterbores 19 ''', which hold the screws 13 on their heads. By tightening the screws 13, the cover part 17 is pressed against the base part 16 and thereby its base plate 16 ′ against the door leaf 12.

The base plate 16 'is parallel to the door leaf 12 directly on the door leaf 12 on or with a spacer between Door leaf 12 and base plate 16 '. The base part 16 has in addition the base plate 16 'an all around projecting outer edge 16 '', which includes the outer wall 17 '' of the cover part 17. The outer wall 17 ″ of the cover part 17 is parallel to the door leaf form-fitting to the outer edge 16 ″ of the base part 16 customized. Another possibility is one shown in Fig.4 Enclosure of the outer edge 16 '' of the base part 16 by the Outer wall 17 ″ of the cover part 17.

Furthermore, there are surrounding edges 16 ″ ″ of the base part 16 for the screw fastening sockets 17 ″ ″ of the cover part 17. The peripheral edges 16 '''and those of the Ausformumg 16 ^IV in the region of the foot part form a support for the cover part 17 on the base part 16.

A recess 16 ^{VI is} provided above the recess 16 ^IV in the base part 16 and is provided with a thread 15. The insert bolt 14 engages with this thread 15 with its threaded attachment 14 ″ ″ and thereby forms a fixed connection with the base plate 16 ′ via the thread 15.

The insertion circumference 14 'of the insertion pin 14 is pressed into a pocket recess 12' of the door leaf 12. A particularly good pull-out inhibition is provided if the insertion pin 14 has projections to be removed on its insertion circumference 14 'which engages in the pocket recess 12'. The outer diameter 14 ″ is larger than the fastening diameter 14 ″ ″ on the safety rosette 10 in order to form a screw-in or press-in stop. The insertion pin 14 is provided on the insertion side with a cavity 14 ^IV into which a turning tool can engage in order to be able to screw the insertion pin 14 tight.

The assembly of the rosette with the door leaf takes place in such a way that first the locking cylinder 11 is inserted into the opening 12 '''of the door leaf 12 or in the previously installed lock and is screwed perpendicular to the door leaf 12. The security escutcheon 10 is placed on the outside 12 ^{VI of} the door leaf 12 and the inside plate 9 on the inside 12 ^{V of} the door leaf 12 via the projecting ends 11 'of the locking cylinder 11. This is done in such a way that first the base part 16 and then the cover part 17 of the security escutcheon 10 is inserted over the end 11 'of the locking cylinder 11. The screw fastening sockets 17 '''come into the bores 12''of the door leaf 12 and the insert bolt 14 with its outer diameter 14' into the pocket recess 12 'of the door leaf 12. The screws 13 are inserted into the abutment plate 19 of the inner plate 9 and the abutment plate is put on. The security escutcheon 10 is screwed on with the screws 13, which are inserted through the through-holes 22 in the door leaf 12 and screwed into the screw fastening connections 17 ″ ″ of the base part 16. Thereupon, the cylinder hole slider 18 of the security rosette 10 is inserted into the hole 17 ^IV via the locking cylinder 11, so that the holding projections 18 'of the cylinder hole slider 18 are positioned in front of the edges of the formation 16 ^{IV of} the base part 16. Then the cap 20 of the inner plate 9 is locked on the abutment plate 19.

3 shows a front view of the security rosette 10 of FIG. The cover plate 17 'is essentially visible in its elongated oval shape. The plate 17 'is delimited on the outside by the outer wall 17''and on the inside by the hole 17 ^IV . The cylindrical hole glider 18 is seated in the hole 17 ^{IV in a} form-fitting manner around the outer wall 17 ″ of the outer edge 16 ″ of the base part 16. Neither the screws 13 or the screw connection sockets 17 ″ ″ nor the plug-in bolt 14 or its attachment to the base part 16 is visible.

Fig. 4 shows an embodiment in which the outer wall 17 '' and the outer edge 16 '' in a different image from Fig.2 are shown. The outer wall 17 ″ of the cover part 17 encloses the outer edge 16 ″ of the base part 16 in a form-fitting manner. This embodiment is characterized by an impression of greater compactness of the security rosette 10.

The security rosette 10 shown in the figures is advantageously in two parts. The base part 16 is made essentially of a base plate 16 'with projections, for example the outer edge 16 ″ and the peripheral edges 16 '' 'vertical to the cover plate 17' of the cover part 17 project and keep it at a distance. Consequently are between the cover part 17 and the base part 16 or between the base plate 16 'and the cover plate 17 'created cavities that serve to save material can. In addition, the two-part security rosette leads 10 to that for the parts 16.17 different Materials can be used. For example the base part 16 can consist of a less solid material. The cover part 17 can also consist of a material, which has a lasting influence on the appearance of the rosette. A base part 16 and made of stainless steel is possible a cover part 17 made of brass.

The insertion pin 14 is with its the fastening diameter 14 '' 'thread in the base part 16 screwed in. This screw attachment meets all safety requirements. Instead, the socket bolt could 14 instead of the screw thread also a smooth outer surface have, with which he is pressed into the base part 16 is. Such pressing is advantageously made in the factory perform to generate large pressing forces that one have a correspondingly tight fit of the insertion pin 14. In any case, it is possible to carry out the attachment in such a way that one that takes place above the insertion pin 14 Penetration of a demolition tool stopped after a short distance is because the insertion pin 14 close to the top of the Rosette 10 is arranged. The result is a short one at best Lever arm that ensures the stability of the rosette and its attachment on the door leaf 12 can not affect. This is also true in the event that instead of two fastening screws below of the lock cylinder 11 applied only a single screw is. If the insertion pin 14 is not in the individual case should be applicable, it is in the case of a screw fastening if necessary, can also be removed on site.

Claims (14)

Security escutcheon (10) on a lock cylinder (11), which has a cylinder end (11 ') protruding from a door leaf (12) against rotation, and which is only attached below the lock cylinder (11) by means of two screws (13) to the door leaf ( 12) is screwed tightly, characterized in that the security escutcheon (10) above the locking cylinder (11) is firmly connected to a concealed insert bolt (14) which is pressed into a pocket recess (12 ') of the door leaf (12) to be pressed out. Security rosette (10) according to claim 1, characterized in that a screw connection (15) or a press connection is provided as the fixed connection of the insert bolt (14) with the security rosette (10). Safety rosette (10) according to claim 1 or 2, characterized in that the insertion pin (14) is provided with protrusions to be removed on its insertion circumference (14 ') which engages in the bag recess (12'). Safety rosette (10) according to one or more of claims 1 to 3, characterized in that the insert bolt (14) with its insert periphery (14 ') is a threaded bolt, the outer diameter (14'') of which is larger than its fastening diameter (14 ''') on the safety rosette (10). Security rosette (10) according to one or more of Claims 1 to 4, characterized in that it has a base part (16) which bears directly or with a spacer on the door leaf (12) and which is covered by a cover part (17) with that below the locking cylinder (11) the existing screw connection on the door leaf (12) is clamped, if necessary positively parallel to the door leaf (12). Security rosette (10) according to one or more of claims 1 to 5, characterized in that the base part (16) has a base plate (16 ') on the door leaf side with an all-round projecting outer edge (16''). Security rosette (10) according to one or more of claims 1 to 6, characterized in that, from the base plate (16 ') within the outer edge (16''), peripheral edges (16''') for the locking cylinder (11) and / or screw fastening connection piece (17 ''') of the cover part (17) and / or project for a screw connection receptacle (15) of the insert bolt (14). Security rosette (10) according to one or more of claims 1 to 7, characterized in that the screw connection pieces (17 ''') are integral with the cover part (17) and each engage in a door leaf bore (12''). Security rosette (10) according to one or more of Claims 1 to 8, characterized in that the cover part (17) has a cover plate (17 ') on the visible side with an outer wall (17'') projecting all around the door leaf. Security rosette (10) according to one or more of claims 1 to 9, characterized in that the cover part (17) with its outer wall (17 '') encompasses the base part (16) and on its outer edge (16 '') with its cover plate ( 17 ') is pressed. Security rosette (10) according to one or more of claims 1 to 10, characterized in that the cover part (17) with its outer wall (17 '') within the outer edge (16 '') of the base part (16) on its base plate (16 ' ) is pressed. Security rosette (10) according to one or more of claims 1 to 11, characterized in that the cover part (17) covers a locking cylinder (11), the housing end face of which is identical to a core end face, the cover part (17) one of the cylinder core (11 '' ) has a free hole (17 ^IV ). Security rosette (10) according to one or more of claims 1 to 12, characterized in that its upper edge is less distant from the insertion circumference (14 ') of the insertion bolt (14) than its thickness corresponds. Security rosette (10) according to one or more of claims 1 to 13, characterized in that the cover part (17) with the screws (13) is clamped against a housing end face of the locking cylinder (11), and in that the base part (16) exclusively from the insert bolt (14) and if necessary is held by a screw on the door leaf (12).

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