CA2078188A1

CA2078188A1 - Identification carrier for a locking system

Info

Publication number: CA2078188A1
Application number: CA002078188A
Authority: CA
Inventors: Heinrich Gretler
Original assignee: Bauer Kaba AG
Current assignee: Dormakaba Schweiz AG
Priority date: 1991-10-07
Filing date: 1992-09-14
Publication date: 1993-04-08
Also published as: PL296164A1; SK295092A3; FR2682148B1; TW198085B; FI924361L; PT100933A; SE9202680L; ITMI920512A0; IT1254660B; DK112292A; BE1008192A5; HU9203166D0; GB2260565A; DE4230293A1; ATA181192A; NO923562D0; KR930008268A; AT400605B; NL9201727A; NO923562L

Abstract

IDENTIFICATION CARRIER FOR A LOCKING SYSTEM

ABSTRACT

The described identification carrier comprises an operating part for transmitting operating forces to a locking device and an attachable identifi-cation part (2). The operating part (1) is shaped into a shank (11), which can be inserted in the cylinder opening of a lock cylinder and can carry mechanical identification features. The attachable identification part (2) is fixed in interlocking manner onto a connecting element (12) of the oper-ating part (1) shaped onto the shank (11) and can carry non-mechanical iden-tification features. On inserting the identification carrier in a lock cylinder, it is simultaneously positioned in such a way that the non-mechanical identification features can be detected by a corresponding device, that the mechanical identification features can mechanically free the lock and the identification carrier during its following rotation in the lock can serve as a force-transmitting means for moving a bolt.

Description

2~7~
IDENTIFICATION CA MIE~ F~R A LOCKDNG SYSTEM

The invention is in the field of sec~ity technology and relates to an iden-tification carrier for a locking system in accordance with the independent claIms.

The purpose of a locking system is to prevent entry for unauthorized persons, but allow entry for authorized persons. For this purpose it must be e~ui-pped for two functions, namely an identification function for differenti-ating authorized from unauthorized persons, and a blw k~lg function in order to give free entry to authorized persons, but mechanically block entry to unauthorize1 persons. Unlike in the ca~se o~ a locking means, which performs the blocking function, a locking system has a much more complex function, particularly with regards to information manag~ment and transmission.
Whereas the identification function is that of infoDmation transmission and consequently requires no energy and corresponding means, the blocXing function must be performed mechanically and consequéntly requires greater ooerating energy levels and other means differing from the first unction.

A simple locking device is e.g. a lock cylinder with a key in conjunction with the lock of e.g. a door. The key can pe~rform both functions, on the one hand supplying as the identification carrier the identification features for the identification function and cn the other it serves as a force transmission means making it possible to utilize the operator's force for the blocking function. On the key can be provided "mechanical" identific-ation features, which make it possible to cancel out the blocking function by the force of the qperator. Such a key with electronic additional func-tions can be incor,oorated into a system, but further characteristics would be desirable.

In the modern very safety conscious age, the key with its mechanical identi-fication features is no longer considered adequate fo~ several reasons, e.g.
bec~use it can relatively easily be copied, because its action on the loc-king system is time-invariant, because no action is possible by the locking system on the key, because a minor change to the system leads to signifi-cant consequences, etc. Such disadvantages of a conventional key are avoided with more modern identification carriers having non~mechanical identification features. The latter e.g. comprise magnetically or electri-- 2 _ cally stored info~lation, which can be rea~ c~t by a corresponding reader (passive), or the response of a so-called identification chip to its acti-vation by a corresponding electronic circuit (active).

Locking systems with such identification carriers having non~lechanicalS identification features are known, the i~entification carrier mostly only fùlfilling an identification function, because it is not and cannot be mechanically loaded. However, for the blocking function it is necessary to provide a mechanically acting device, which blocks or unblocks a purely mechanical obstacle controlled by the identification function. As a func-tion of whether this mechanical obstacle is a blocking means for a bolt ora complete dcor, the cperator requires that it mcves the bolt and opens the door, that it opens the door, or that it si~ply enters. The blocking func-tion device must be designed as a function of this and supplied wi~h an energy quantity which in all cases is significantly higher than that necessary for the identification function.

The blocking function device becomes simpler and less energy intensive if, as with the conventional pair constituted by the lock and the key, the force of the operator is used for part of the blocking/unblocking function, e.g.
in that he moves a bolt and opens the door himself. With an identification carrier which only fulfils an identification function, the difficult always arises that the operator with a first movement trips the identification func~
tion and then in a closely confined period of time with a second movement must perfonm part of the blocking function. Thus, he must e.g. insert a card in a reader and then within a few seconds press a latch unblocked by the identification and cpen the door. The time allowed between the two movements is kept very short for security reasons. The brevity of the time and the coordination of the two mcvements require relati~ely high concentra-tion on the part of an accustomed user and a corplicated information in the case of an unaccustcmed user, which often leads to problems e.g~ ~n the case of hotel keys.

The problem of the invention is to provide an identification carrier, which can carry mechanical and~or non-mech2nical identification features and which is constructed in such a way that the two afor~mentioned types of identifi-2~7~

cation features can be used separate fran one another for different security functions and can be ccntbined in a randan manner.

This problem is solved by the invention defined in the independent claims.

The invention relates to an i~entification carrier, which has a mechanical S cperating or Xey part for transmitting cperating forces and cptionally pro-vided with a mechanical locking code, and an attachable information carrier, here~tafter referred to as attachment part for short, e.g. for receiving an electronic function for transmitting information or all additional, neces-sary information, so as to regulate the author' ation, the two parts ccnsti-tuted by the operating part (mechanical key part) and attachable identifi-cation part, cart be detached fran one another by a corresponding design, so that they can be separately or jo~ttly used for an intended function at~d can also be randanly canbined. h*ten combine~ to fonn ctn identificaticn carrier, they in each case fulfil a predete~nined system function.

The mechanical cperating part, in the following embodintent in the form of a key part, is constntcte~ in such a way that with the aid thereof a lock cylinder can be operated and cc~t be cor~tected to the attachment part, which can e.g. be an electronic key part, by means of a standardized connecting element. ~t the fo~m of a key part it can also carry the cc~tventional mechanical identification featLtres, e.g. locking code depressions.

An electronic key part realized e.g. by means of the attachment part is cc,nstructed in such a way that as the attac~nent part with associated elec-tronic means it can be associated with the or a mechanical key part, so that ~he identification carrier for non-motor-assisted locking devices beccmes an easily handlable force transmission means with the desire~1 integrated, mech-anical and/or non~mechanical identification features.

The mechanical cperating parts, particularly key parts, can also be foreign to the systen and can be extended by means of the matching connecting ele-ment with an attachable information part so as to form an extended system-integrated or system-generating identification carrier.

- 4 - 2~7g~

If the inventive identification carrier carries mechanical and non~mechanical identification features, in which the operating part represents a key part with a key stop, when inserted in the correspond mg lock cylinder as a result of the exact positioning of the operating part, which in turn carries S the attachment part precisely positioned relative to the lock cylinder, itis possible Eor a correspond mg reader to read the non-mechanical identifi-cation features and the mechanical identi~ication features (lock cylinder ccde~ mechanically free the turnin~ of the ~ey. Following a complete release and the subseguent turning of the key, the force of the operator is used for the mcvement of an e.g. mechanical bolt, the mechanical key part serving as the force-transmitting means.

The inventive identificaticn carrier can be equipped with combined mechan-ical and non~mechanical identification features, the equipping of the lock cylinder and the area round it dete~mining which of the features are necessary for the identification function. The identification carrier (as a key) may only be equ~pped with one of the identification feature types.
However, the lack of the non-mechanical features (pattern of holes) in one case or the lack of the electronic features in the other must not lead to any functional deterioration, if such possibilities are provided or defined in the system with which this identification carrier is associated. The subsequently described variation possibilities not only make it possible to use the inventive identification carrier for different security functions, which need not necessarily be locking functions, but they also make it more difficult as a result of the uncertainty in evaluating the valid locking and~or identification functions to copy such an identification carrier in an unauthorized manner.

The cperating part is made fr3n a tough material allcwing the force trans-mission from the user to the locking device, e.g. a me-tal body, which is oorrespondingly worked as a key blank. It is e.g. provided with mechanical identification features, which are produced ~y a milling process. The identification part in the fo~m of an attachment part primarily serves as a fastening means Eor the carrier of non-mechanical identification features and other parts necessary for identification pulposes (e.g. electronic parts such as chips, capacitors, etc.). It is e.g. made from plastic and by ~7~

different colcurs and/or shapes can be used as a directly vis~ble differen-tiating feature of different identification carriers or carrier groups.

With an operating part it is also possible to associate more than one a~tach-able identification part, e.g. one on each side of the cper~ting part. With respect to the detachable co~nection, they can be provided with encoding elements and with each attachnent part is not only associated a spec~fic operating part, but also a specific position thereon (one or other si~e in the case of two attachment parts).

The invention is described in greater detail hereinafter relative to non-limitative embodiments of the inventive identification c2~rier, but indivi-dual variants, such as e.g. more than one attachment part pex operating part are merely descr~bed, but not shown in the dr2~ings. In the dr2~ings shcw:

Fig. 1 A plan view of an ex~mplified embodiment of the inventive identification carrier.

Fig. ~ A section through the identification carrier according to fig. 1 ~section line II).

Fig. 3 A section through the identification carrier according to fig. 1 (section line III).

Fig. 4 A section through the iden~ification carrier according to fig. 3 (section line IV).

Fig. The operating part of the identi~ication carrier, as presented for further processing as a key blank.

Fig. 6 Examples of the encoding of a self-closure between the attach-ment part and the operating part in the fo~m of sections Vl.

Fig. 7 A further embcdiment seen fron belcw shcwing an attachment part, which is inserted with two pin clips in the operating part, the encod mg of the self-closure resulting from the size and spacing - 6 - ~ ~7 of the passages.

Fig. ~ The embcdiment of fig. 7 in section B-~, seen frcm ~he si~e.

Fi~. 9 An operating part according to the embodiment of fig. 7 showing a dia~ra~ of the encod mg of the self-closure bet~een the S attachnent part and the operating part.

Figs. 1 to 4 show an exemplified embodiment of an inventive identification carrier. It comprises a mechanical operating p æt 1, here in the form of a Xey part with or without mechanical key codin~ and an attachable identifi-cation part 2, here In the form of an attachment part with electronic i~entification featuresJ The ke~ part 1 has a shanX 11 with a first stop 13 and a seat 12 as a connectin~ element between the two parts l and 2 with a second stcp 14 for the at~achnent and positioning of the attachment part 2.
The shank ll can, but need not, have mechanical identification features in the fonm of a ccding pattern with milled out points on its narrow anl/or wide side. It is mainly use1 for transmit~ing an operating force. Between the shank 11 and the seat 12 is crmed a first stcp 13 used in the lock cylir~er for the precise, axial positioning of the shank ll. The seat 12 constibutes an extension of the shank 11. This part is so widened by the fitted attachment part 2, that there is an easy-to-handle grip and consequently an easi7y handlable, key-like identification carrier, putting the manual oper-ation of a locking device. The attachment part 2 strikes against the secon~
stcp 14, so that with respect to the first stop 13 it is located in a precisely defin~d position and can therefore be brought into a precisely fixed posi~ion with respect to a reader e.g. located in the lock area.

The seat 12 and the attachment part 2 are constructed in such a way thatthey can be interconnected in interlocking, but detachable manner twith or without the destruction of an additional security element, e.g. a seal, lead seal, etc.). In the represented embodiment the seat 12 is ccnstructe~ as an extension of the shank 11 widened around the first stop 13 and whose longi-tudinal edges are parallel to the longi~udinal edges of the shank 11 andwhose narrow sides are constructed in step-like manner, so that one wide side of the seat 12 has a width co~responding to the sh~nk 11, whereas the - 7 _ ~ ~7 cpposite wide side of the seat is wider by the total width of the stop 13.
In this fonm the c~erating part constitutes a key bkank, which can be use~
with three different functions ~see diagrcm hereinafter). Thus, key blanks can be kept in stock and through the shank can belong to another locking system, but as a result of the standardized connecting element 12 it is still possible ~o use the same attachment parts, which also cooperate with another locking system. Besides its function as an operating element the key part also has the function of a mechanical interface (intenmediate or cYdaptm g piece).

The attachment part 2 is e.g. shaped frcm a slightly elastic plastic and in the represented embcdiment is constituted by an attachment bcdy 21, which forms a closed space and holding elements 22.1 and 22.2 shaped onto both sides thereof an~ which are shaped m such a way that they closely embrace the end of the seat 12 of the reception part 1 and are elastically tensioned so that this tension ensures an adequate fixing of the attach~ent part 2 to its seat 12. In the second embodiment additional security ele~ents æe used with which it is possible to detect an e.g. unauthori~ed replacement of the attachable identification carrier.

The closed space of the attachment bcdy 21 contains the parts necessary for the non-mechanical identification features. In the represente1 embcdi~ent they are in the fonm of an identification chip 23, an energy storage ele~ent, e.g. a cc~pacitor 24 and an "antenna~, e.g. in the foLm o~ an electric coil 25 directly wc~nd onto a ferrite core. The three electronic components are advantageously prefitted and electrically interconnected together with a print or carrier a~d are mGunted in the fonm of a partly finished article in the attachment part 2. Thus, the attachable identification carrier has become an electronic key part, which can be produced, stored, progrc~mmed and eva~uated in a separate operation. If the electronic key part is only use for checking the person and the mechanical key part (besides its function as an cperating element and interme~iate part) only ~ulfils a locking function, in the case of a periodic interchange there can be an uninterrupted check with uninterrupted operability. The locking function remains permanently in the possession of the person allocated the identification carrier and a check can still take place in the form of an evaluation ~nd programming.

- 8 - ~ ~ 7 ~

Obviously the locking function can be distributed w er both parts, e.g. the mechanical locking f~mction in a permanent manner and on which is super-m ~osed a tine or data windcw locking function by means of the attachment part~

The operating part 1 which performs several functions, namely the transmis-sion o the qperating forces to the locking device, that of an nintenm~diary~
transfer part between a specific locking device and its standard, an attach-able identification part and its standar~ and as a carrier for the attach-able identification part. m e cperating part 1 can also carry a code for diffelent att~chnent parts~ which can be correlated with the operatin~ partshank 11. For example the operating part shank 11 is designed for the standard of a specific locking device and the identification carrier of the latter is constituted by a specific, attachable identification part (by progranm m g, coding, etc.), so that no identificatio~ part of another group can be connected to said cperating part and for thi purpose an encod mg o~
the detachable connection is prov;~ed.

Figs. 5 and 6 show a mechanical key part as a so-called key blank with the essential features 11, 12, 13 and 14, the stops 13, 14 for the adequate position~g o~ the key part in the lock cylinder on the one hand and an attachment part on the other, and the "adapting elements" 11, the shank for the locking device and the seat for the attachment part. Fig. 6 shows a number of possible profiles in cross-section as to the way in which the attachment Fart 2 can be encoded ensuring that only this type and not scme other can be fixed to the seat 12. As wi~l be shcwn hereinafter the way in which the conbination is mechanically dissolved and reestablished on the one hanl for the coding and cn the other for the mechanical fixing is s~lbject to such numerous variations that all of these cannot be described here.
However, it is sufficient to have given the principle for the design of the connecting elements/coding elements between the parts 1 and 2.

The variability is that the attachment parts, which e.g. carry the system information are separately prepared, engaged at another time on a mechanical key part or can be generally interchanged, Thus, there is e.g. a group with mechanical key parts, which have a common mechanical ccde for open m g a door 9 ~ ~ 7 ,~

with the corresponding lock cylinder. On one of the mechanical key parts can be engaged a preprogrammed attachment part, which e.g. carries addit-ional information for checXing presence, so that authorization can be checked m a tlme-base~ manner. Together with the presence check the num~er S of locking manipulations, etc. can be established. This n~kes it possible to pro~uce shift change, overtime, zonal and similar keys. With a system-based person identification, it is possible to e.g. periodically interchange the attachment part. The attachment part carry mg the information is remaved and a new-programmed attachment part fitted. This can be carried ~0 out by the ~entification carrier cperator, or by an inspection station. Asthe attachment part interchanges and receives infoLmation concerning the transmission/reception mcde, no sensitive parts like contacts are involved in such an interchange and it can therefore be very simple.

The mechanical key part and the electronic attachment part together foLm a two-part unit. The mechanical key part is designed for receiving cm attach-ment part ar~ has the function of mech~nical force transfer and non-electrical, mechanical unblocking, whilst the electronic attachment part is constructed for fixiny to the mechanical key part and fulfils the non-mechanical functions (mainly in~o~mation transmission a~d identification).
The standard key shape is retained, because it best permits the "mechanical cpeningn, unlike in the case of plastic cards, where additional aids are re~uired for opening a lock. Hcwever, the identifica~ion carrier has little in common with a key or even an electronic/mechanical key, because with such keys the variability reguired by a complex system cannot be provided.

The presently proposed solution still has advantages in the direction ofconventional use. For example the attachment part can, but need not contain electronics. m e mechanical key part can, but need not have a mechanical coding. Thus, identification carriers (e.g. for a certain tine) can be "downgraded" to keys, but without being removed fmm the system, or identi-fication carriers can be used as purely electronic keys or neutralized assuch. This lea~s to four possibilities, three R which can be used for direct ~nployment and one ~temporarily) free frcm systam info~nation, e.g.
if a specific quantity is system-caused, can be used as a reserve and subsequent identification. These four possibilities are given below in the foDm of a table:

Electronic attachmentMechanical cperating Function of part part ccmbination X X el/mech. ID carrier X 0 el. ID carrier o x mech. ID carrier O O zero info. ID c~rrier Figs. 7, 8 and 9 show a further embodiment of the identification carrier according to the invention. The cperating part 1 once again in the form of a mechanical key part is, unlike the previcusly discussed ambcdiment, in the form of a conventional key with a grip, a shank 11 and a first stcp 13. In place of the second stop 14 for positioning the attachment part 2, it has two coded insertion cpen mgs 14', through which can be passed two fixing pins 15 of the attachment part 2. Thus, the attachment part 2 is in a defined position with respect to the first stop 13, as with the stop 14 in the first embodiment. The elaments 14' and 15 of this embcdiment fulfil the same function as elements 12 and 22 in the first embodiment. This example clearly illustrates what has been state hereinbefore regarling the numerous possibilities ~or designing the connecting elements, whilst incorporating encoding elements.

The attachment part 2 is e.g. shaped or moulded frnn plastic and camprises an attachment bcdy 21, which forms a closed space and two hoJding or fast-ening elements 15 shaped thereon and which are moulded in such a way that they can be passed through insertion openings 14' in the mechanical key part l. This most advantageously takes place by a resilient sn~p connection or claTping CGnnection, which ensures the necessary reciprocal hoLd of the two parts l and 2.

Fig. 9 shcws an exanple as to how an encoding pattern can be providel on the relatively large surface available, so that a large number of groups of attachable identi~ication parts can be associated with the cperating partl A reference opening R is associated with the insertion cpenings 14' with the stcps. In this form the cperating part corresponds to a basic encoding arrangement. On two vertically aligned axes are provi~ed a main grcup H and a subyroup U of utili~able positions for a mculdable or subsequently ittable ooding pin or pins on the attachable identification part, This e.g. corres-S ponds to a portable system. The reference opening can either be moved onthe axes or it can be moved together with the axes. A once n~de group of attachable i~entification carriers on the axes can be retained, even if there is a variation in the reference cpening position for any reason. This example shcws the encoding depth to which SU~l a si~ple measure on the oper-1~ atiny part and attachable identificati~n part can e~tend, as a result of therelatively large amount of space available on the key-sh2~oed cperating part, ooTpared with the embo iment according to figs. 1 to 6. The encoding arrangements can be such that by removing e.gO a snap connection, the ccnnec-tion between the operating part anl the i~entification part is no longer reliably ensured.

As a rule the two functional parts do not have to be securad a~ainst unauthorized separation, because normally the identiication carrier does not function with one or other part. It is optionally pcssible to pnovide security of the connection o~ these two elements against unauthorized disassembly. It may occur that it is wished to prevent unnoticed inter-change o~ attachment parts 2 on other mechanical key parts 1. In this case the second e~bodiment is particularly appropriate, because tAe fastening part designed as a resi~ient clip can be a~ditionally "lead sealed~ into the passage opening 14'. Although this does nGt ensure that no unauthor~ ed interchange can take place, such an interchange or replacenent wou~d be noticed, because it would be necessary to damage the seal or lead seal 15.

The closed space of the attach~ent body 21 contains the parts necessary for non~mechanical identification features. In the represented embodiment tAis is constitutel by an identification chip 23, an energy storage means e.g~
in the form of a capacitor 24 and an ~antennan, e.g. in the foLm of an electric coil 25. These three electronic components are advantageously prefitted together on a print or carrier and electrically interconnected and are mounted in the attachment part as a partly finished article.

Claims

1. Identification carrier for a locking system, characterized in that two cooperating, interchangeable functional parts, an operating part (1) and an attachable identification part (2) are provided, that the operating part (1) has a shank, which can be inserted in a key opening of a lock cylinder and is used for transmitting operating forces to a locking device, said part being able to carry mechanical identification features and that connecting elements (12, 14') are provided for the fitting of the attachable identifi-cation part (2) and that the latter is constructed m such a way that on it can be provided means (23, 24, 25) for non-mechanical identification features and that there are connecting elements (15, 22) for fitting the operating part (1).

2. Identification carrier according to claim 1, characterized in that on both functional parts (1, 2) there are connecting or self-closure elements (12, 22, 14', 15), with which they can be brought into a detachable connec-tion.

3. Identification carrier according to claims 1 and/or 2, characterized in that the operating part (1) is designed as a transfer part between a random locking device and a random attachable identification part in such a way that the shank (11) matches the standard of a selected locking device and the connecting element (12, 14) the standard of a selected attachable identi-fication carrier (2) and their association is made clear by an encoding of the self-closure means.

4. Identification part according to claims 1 and/or 2, characterized in that the attachable identification part (2) has an optically differentiatable code such as a colour, shape or design code.

5. Identification carrier according to claim 3, characterized in that the operating part (1) between the shank (11) and the connecting element (12) is shaped for attaching the attachable identification part to a first stop (13) and a second stop (14) is provided for positioning the attachable identification part (2).

6. Identification carrier according to claim 3, characterized in that the operating part (1) is shaped between the shank (11) and the connecting element (14') for attaching the attachable identification part is shaped to a first stop (13) and the second stop (14') is produced by common means.

7. Identification carrier according to claims 1 and/or 2, characterized in that the attachable identification part (2) has a space for receiving identification means.

8. Identification carrier according to claim 7, characterized in that in the space of the attachable identification part (2) are provided an identi-fication chip (23), energy storage means (24) and a reception means (25).

9. Identification carrier according to claim 8, characterized in that in the space of the attachable identification part are provided an identification chip (23), a capacitor (24) and a coil (25).

10. Key blank for producing an operating part of an identification carrier according to one of the claims 1 to 8, characterized in that the operating part (l) is designed as a mechanical transfer part between the standardized apparatus or functional parts, that the shank (11) corresponds to the standard of a selected locking device and the connecting element (12, 14') the standard of a selected attachable identification carrier (2) and their association is made clear by elements of a self-closure means encoding arrangement.

11. Key blank according to claim 10, characterized in that it has a shank (11), which is shaped in such a way that it can be inserted in the key opening of a lock cylinder and that it has means shaped onto said shank (11) for fixing an attachment part, a widened portion being constructed as a first stop (13) with which the identification carrier can be positioned in the lock cylinder.

12. Key blank according to claim 11, characterized in that the longitudinal edges of the connecting element (12) are parallel to the longitudinal edges of the shank (11) and that the narrow faces of the connecting element (12) are constructed in step-like manner for encoding and for fixing.

13. Key blank according to claim 12, characterized in that a wide side of the connecting element (12) has the width of the shank (11) and the other wide side is wider by the size of the first stop (13).

14. Key blank according to claim 10, characterized in that it has a shank (11) and in the area of the ccnnecting elanent in which the attachable identification carrier (2) is to be arranged there are passages (14') for receiving and positioning the attachable identification part (2) with resilient clip pins (15) and the association is made clear by elements (R, H, U) of a self-closure means encoding arrangement.

15. Attachable identification part for an identification carrier according to one of the claims 1 to 9, characterized in that it has a hollow casing part (21) and connecting elements (22.1/2) shaped onto the casing part and has elements of a self-closure means encoding arrangement.

16. Attachable identification part according to claim 15, characterized in that in its inner area there are identification means (23), energy storage means and reception means.

17. Attachable identification part according to claim 16, characterized in that in its area are provided an electronic circuit (23) and energy and data transmission are storage means.

18. Attachable identification part according to one of the claims 15 to 17, characterized in that there are resilient clamping connections (15) for fixing and positioning on the mechanical key part (1).

19. Attachable identification part according to claim 15, characterized in that for increasing security a seal or lead seal is associated with a passage clip (15).