EP0559157B1 - Electronic lock cylinder with plug-type electrical connection - Google Patents

Abstract

The lock cylinder comprises a profiled housing (1) with a cylinder core (9) mounted rotatably therein and with tumblers (15) which can be controlled by a flat key. Arranged on the profiled housing (1) is an information-recording device (37) which responds contactlessly to control-information signals from a control circuit of the flat key and which is itself connected to an electronic control and current-supply circuit arranged at least with some of its circuit components separate from the lock cylinder. The connection of the circuit components separate from the lock cylinder is made by a cable (43) and a plug connection (45) consisting of two plug parts (49, 51) complementary with one another. A first of the two plug parts (49) is attached fixedly to the profiled housing (1), and the cable (43) carries a second plug part (51) which can be attached loosely to the first plug part (49). A holding part (53), designed especially as a clip, can be fastened to the profiled housing, and engages behind the second plug part (51), at least in the plug pull-out direction, preferably also transversely to this, and secures it, in particular against being pulled out of the first plug part (49). <IMAGE>

Description

The invention relates to a locking cylinder and in particular to an electronic locking cylinder that can be connected via a plug connection of a cable.

The term locking cylinder includes, for example, so-called profile half cylinders, which have only one cylinder core in addition to other associated structural components and are used in particular in doors which are to be lockable from one side only by means of keys, such as garage doors or lockable device flaps and the like. The term locking cylinder also includes so-called double locking cylinders with two cylinder cores and locking options from two sides.

From the German utility model 87 00 375.9 an electronic double lock cylinder is known which contains two cylinder cores which are arranged in a coaxially rotatable manner in the bores of cylinder sections of its profile housing. The cylinder cores can be locked and contained by mechanical tumblers relative to the profile housing an insertion channel extending in the direction of the cylinder axis for a flat key controlling the tumblers. The two cylinder sections of the profile housing are connected to one another by a common web section projecting radially from the cylinder sections and accommodate between them a lock bit part that can be alternately coupled to the two cylinder cores. In order to be able to transmit control information, in particular also encryption information, between the locking cylinder and the flat key in addition to the mechanical locking function of the flat key, an information acquisition device is arranged on the profile housing in the area of at least one of the cylinder cores and responds without contact to control information signals from a control circuit of the flat key. The information acquisition device on the profile housing is in turn connected to an at least with some of its circuit components separate from the locking cylinder, that is to say an externally arranged control and power supply circuit, via a cable which contains a plug connection. In the known locking cylinder, the plug connection is provided at the free end of a cable section which is firmly connected at its other end to the locking cylinder. The plug connection is thus exposed when the lock cylinder is installed in a lock and is exposed to possible damage both when installing the lock cylinder and when using it.

From EP-A-364 781 a mortise door lock with an electronic profile locking cylinder is known, which in its installed state within the door lock area of the web section of its profile housing has a first plug part of a plug connection that contacts the electronic locking cylinder and is firmly connected to the web section contains. The second plug part of the plug connection sits on a slide which can be adjusted by means of a spindle screw within the plug-in door lock. The plug connection of the Known lock sits comparatively protected inside the door lock, but requires a relatively extensive design adjustment of the door lock to the profile cylinder. In particular, extensive precautions are necessary in order to align the locking cylinder seated in a profile perforation of the door lock relative to the second connector part guided on the slide and to avoid damage to the sensitive contacts of the connector parts.

It is an object of the invention to provide a lock cylinder of the above type which can be locked mechanically and which is additionally set up for the transmission of electrical control information signals and which enables an operationally reliable plug connection to a cable with a comparatively low expenditure on construction parts.

The invention is based on a locking cylinder which comprises the following components:

A profile housing, at least one cylinder core rotatably mounted in a bore of the profile housing and lockable by mechanical tumblers relative to the profile housing with an insertion channel extending in the direction of the cylinder axis for a flat key controlling the tumblers and a contact key arranged on the profile housing and responsive to control information signals of a control circuit of the flat key Information acquisition device, which in turn is connected to an electronic control and power supply circuit arranged separately from the locking cylinder with at least some of its circuit components, the connection of the switching components separate from the locking cylinder being effected via a cable and a plug connection consisting of two mutually complementary plug parts.

Starting from a lock cylinder of this type, the above-mentioned object is achieved according to the invention in that a first of the two plug parts is firmly attached to the profile housing and the cable carries a second plug part which can be loosely plugged onto the first plug part, and in that a holding part is fastened to the profile housing, which engages behind the second plug part at least in the plug pull-out direction and secures it relative to the first plug part, in particular against being pulled out of the first plug part.

In the case of such a locking cylinder, the first connector part, which is fixedly offset on the profile housing in the direction of the cylinder axis, can be hard-wired to the first part of the locking cylinder which is coupled to the cylinder core. Excessively high demands do not have to be placed on the tensile strength of this wiring, since the mount which can be fastened to the cylinder housing absorbs any tensile forces acting via the cable.

The profile housing expediently comprises, as is customary in the case of conventional profile locking cylinders, a cylinder section containing the bore for the cylinder core and a web section projecting from the cylinder section radially to the cylinder axis and delimited by two web sections which extend approximately parallel along the cylinder section. In a preferred embodiment of such a profile locking cylinder, the first plug part is arranged on one of the side surfaces with a plug pulling direction running along the side surface and in particular with a plug pulling direction running transversely away from the cylinder section. In this way, due to the narrower cross-sectional width of the web section, the space which is usually present anyway in the cylinder receiving bore of the door can be used for accommodating the plug connection and the holding part. Especially when the plug pull-out direction is transverse, for example perpendicular to the cylinder section and parallel to the side surface of the web section there are particularly favorable installation conditions, since the cable then runs from the plug connection lying in the door leaf plane.

A further improvement in the operational reliability of the plug connection in the last-mentioned arrangement is achieved in that the holding part overlaps at least the second plug part both in the plug pull-out direction and transversely thereto in both directions and is fixed between mutually opposite stops relative to the profile housing. In this embodiment, the holding part protects the second plug part and in particular also the transition area between the two plug parts, which reduces the risk of contamination and corrosion, and in addition the second plug part is not only secured against pulling out, but also against transverse loads, such as, for example, when Slamming a door could occur. These stops can be lugs or ribs or the like. However, an embodiment is preferred in which the holding part contains a depression in its surface adjacent to the side surface of the web section, into which both plug parts engage together. The holding part thus overlaps both connector parts.

In order to be able to fix the second plug part fixed on the holding part relative to the first plug part, the holding part is in turn fixed on the profile housing. Since the connector parts are usually relatively small and have, for example, transverse dimensions of only a few millimeters, comparatively narrow fixing tolerances are required if the sensitive connector contacts are to be adequately protected against mechanical stress. Forces acting transversely to the direction of plug extension can be safely derived in the profile housing if at least the second plug part is arranged in a transverse to the plug extension direction on both sides of the second plug part at a distance from the recess of the side face of the web section limited by shoulders and if the holding part has projections on both sides of the second plug part which protrude into the Engage the recess and fix the second connector part and the holding part to the profile housing transversely to the connector pull-out direction. The recess in the side surface of the web section of the profile housing not only sinks the plug connection at least partially in the profile housing, but is also used both for fixing the second plug part and the holding part, and is therefore advantageous in several respects.

To fix the holding part to the profile housing, complementary locking elements can be provided on the holding part on the one hand and the profile housing on the other, or the holding part can be detachably fastened to the profile housing with additional fastening means, for example a screw or the like. In order to avoid additional latching recesses on the profile housing, it is provided in a preferred embodiment that the holding part extends over the side of the cylinder section diametrically facing away from the web section and carries at least one latching projection, which in at least one of the tumblers in a guide bore, in particular the guide bore of the innermost tumbler intervenes. While in conventional profile locking cylinders the guide bores of the tumblers are closed by plugs, this is omitted in the above-mentioned embodiment, and the guide bore is also used as a recess for the locking projection.

In embodiments in which the first plug part is arranged in such a way that the plug pull-out direction extends transversely, in particular at right angles, away from the cylinder section, it is provided in an advantageous embodiment that the holding part extends beyond the side of the cylinder section diametrically facing away from the web section. In this way, the holding part can direct the forces exerted via the cable and the second plug part directly onto the profile housing without the need for additional fastening elements or the like. In a development of the last-mentioned embodiment, the holding part is designed as a clip which is adapted to the cross-sectional contour of the profile housing and can be plugged onto the profile housing transversely to the cylinder axis. The clip expediently has a substantially U-shape and encompasses the cylinder section with a first leg and the surface of the web section distant from the cylinder section with a second leg, covering the two plug parts with its web connecting the legs. Such a clip not only protects the connector parts, but can be snapped onto the profile housing in a simple manner, which facilitates the assembly of the profile cylinder.

In order to reduce the fixation of the second plug part and the overall space requirement of the plug connection, at least the second plug part is preferably designed as a flat plug part lying flat against the web section. In addition, in the case of such a flat plug part, the holding part can be designed in such a way that it can be placed on the cable only immediately before the profile locking cylinder is assembled. For this purpose, it can be provided that the clamp has a cable passage opening in the region of the edge of the web section which is distant from the cylinder section and which extends transversely to the The clamp is narrower than the flat side width of the flat plug part, viewed along the side surface of the web section, and which has an opening width along the clamp, which allows the flat plug part to pass through. The clamp can thus be rotated by 90 ° against its installation position related to the flat plug part and plugged onto the cable and, turned back into its installation position, secures the second plug part at least in the plug pull-out direction. The cable passage opening preferably encompasses the edge of the web section. This has the advantage that when the plug connection is closed, the clip can first be placed on the web section with its second leg and then, guided on the web section, can be snapped onto the cylinder section with its first leg. This makes it easier to put the clip on relative to the connector.

In order to be able to provide sufficiently large stop or shoulder surfaces for the pull-out protection on the comparatively small second plug part, the cable is expediently connected to the center of the second plug part at this point.

For some applications, the electronic locking cylinder must be connected to the circuit components of the electronic control and power supply circuit, which are arranged separately from the locking cylinder, via two separate cables and two separate plug connections. The need for this can arise if the number of lines to be connected increases the cable cross-section to such an extent that a single cable would be too stiff and too thick to be able to be laid unobtrusively, but also if the individual lines of the cables are used for safety reasons. and interference radiation should be spatially separated. Conveniently Two connecting cables are used when the lock cylinder is designed as a double lock cylinder, the profile housing of which contains two cylinder cores in two cylinder sections that are axially separated from each other by a lock bit but are connected to a unit by a common web section, whereby both cylinder cores contain separate information transmission devices for the transmission of the control information signals of the flat key can be assigned. If the control information signals of the two information transmission devices are fed separately to the external control and power supply circuit, it can be monitored, for example in the case of access control systems, from which side a door is locked. In order to facilitate the assembly of a lock cylinder, the two separate cables of which are to be connected, it is proposed in an expedient embodiment that each of the two cables carries a second plug part and both second plug parts are secured against being pulled out by a common holding part, while the assigned first Plug parts are in turn attached to the web section of the profile housing. The first two connector parts could be arranged side by side on the same side surface of the web section. Since in individual cases this requires a comparatively large holding part which is exposed to increased forces due to the asymmetrical load, in a preferred embodiment it is provided that the first plug parts are arranged on mutually opposite side surfaces of the web section and that the holding part as the profile housing is between two transverse to the cylinder axis extending leg is formed including a bracket and each of the legs has means for fixing the second connector part. In principle, the bracket can have a U-shape to either of the side of the cylinder section or from the side of the web section on the profile housing. However, it improves the fixing of the clip on the profile housing if the legs have a shape adapted to the cross-sectional contour of the profile housing and essentially completely enclose the profile housing.

In one embodiment of the clip as a substantially completely closed ring, the legs can have sufficient inherent elasticity with a suitable choice of material and shape in order to be able to snap the clip onto the profile housing. But it can also be provided that the legs are hingedly connected to each other by a hinge and carry locking members at their ends remote from the hinge for fixing to the profile housing. If the joint connects the ends of the legs adjacent to the web section, the comparatively large circumferential surface of the cylinder section can be used for accommodating the latching members, which also offers the possibility of snapping the latching members into guide bores of the tumblers.

It should be emphasized at this point that not only with a double locking cylinder, but also with a so-called profile half cylinder, a connection via two or even more cables and via two or even more separate plug connections to the electronic circuit components arranged separately from the locking cylinder Control and power supply circuit comes into question, especially in the case of a larger number of lines to be connected, it being possible for the second plug parts and / or the holding part to be fixed in accordance with the above discussions.

On the other hand, according to an embodiment of the invention, a double lock cylinder is proposed, the profile housing in two by a lock bit part Cylinder sections separated axially from one another, but connected to a unit by a common web section, each contain one of two cylinder cores, each of the two cylinder cores being assigned a separate information acquisition device for the transmission of control information signals of the flat key, and both information acquisition devices on the electronic control and power supply circuit are connected, the circuit components arranged separately from the locking cylinder can be connected via a single cable and via a single plug connection. The plug connection and the holding part for fixing the second plug part carried by the cable - apart from the fact that the numbers of the plug contact elements may differ - have any of the configurations described with reference to other embodiments of the invention. Any functions, such as monitoring by means of an access control system, from which side the door is locked or unlocked, are not impaired by the connection configuration with a single plug connection.

A further preferred exemplary embodiment of the invention relates to a locking cylinder, the profile housing of which has a cylinder section containing the bore for the cylinder core and a web section which projects from the cylinder section radially to the cylinder axis and is delimited by two web sections which extend essentially parallel along the cylinder section, the first plug part including transversely, in particular perpendicular to the side surfaces of the plug pull-out direction on the web section in the region of one of the side surfaces, preferably in a recess of the web section in the region of one side surface. In this way, due to the narrower cross-sectional width of the web section, it can also usually be in the cylinder receiving bore the door already existing space can be used to accommodate the connector and the holding part.

Particularly favorable installation conditions result in this variant of the plug-in connection if, as provided in accordance with a further development, the first plug part is accommodated in a recess of the web section in the region of one side surface to such an extent that it does not project outwards beyond the side surface. In this way, the first plug part is very well protected against damage and, furthermore, does not take up any space outside the profile housing.

Provided that as little as possible deep recess in the web section is allowed by design, it is proposed to have the first plug part essentially flush with one side wall, taking advantage of the aforementioned advantages.
In the event that the recess is designed to be more generous and the first plug part can be arranged in the recess behind one web side surface, a corresponding configuration is proposed. The second connector part is then to be adapted so that it engages with a part of its connector housing in the state of the connector in the recess. In this way, lateral forces acting on the second plug part, ie forces transversely to the direction of the plug pull-out, can then be introduced into the profile housing via the plug housing part engaging in the recess and via closely fitting side surfaces of the recess. Furthermore, an effective sealing of the contacts of the plug connection for protection against penetrating moisture can be achieved in this way.

The first plug part is preferably an integral part of a structural unit comprising in particular circuit components of the control and power supply circuit is arranged in accordance with the above discussions in the recess. Such a unit can be, for example, a printed circuit board which is already pre-equipped with electronic components, for example having plug sockets for defining the first plug part, and which can be easily installed in a corresponding recess in the web section. The lock cylinder can thus be economically preassembled, including the printed circuit board and the first plug part, and during the preassembly, care must be taken to ensure that current-carrying lines are routed in a protected and secure manner in the web section. The installation of a locking cylinder equipped in this way in a door or in a lock housing therefore does not require any special precautionary measures and can essentially be carried out in the same way as a conventional mechanical locking cylinder.

According to a development of the invention, at least one of the plug parts near its electrical contact elements has plug-in guide and fixing elements which can be inserted into plug-in guide and fixation openings in the region of the other plug part while aligning the complementary electrical contact elements of the two plug parts, the electrical contact elements of the plug part provided with plug-in guide and fixing elements preferably do not protrude from the plug part beyond the plug-in guide and fixation members.

A large number of plug contacts, such as ball contacts and complementary surfaces, so-called conductive rubber contacts (zebra conductive rubber), as well as spring contacts and corresponding contact surfaces, come into question as electrical contact elements, the plug-in guide and fixing elements and the plug-in guide and fixing openings in particular ensuring that the connector status can only be established if the contact elements in question are correctly aligned with their complementary contact elements. In this way, electrical short circuits and other incorrect connections can be avoided. Furthermore, the plug-in guide and fixing members provide a fixation of the two plug parts relative to one another transversely to the plug pull-out direction, as a result of which the mutually associated electrical contact elements always maintain their correct alignment in the plug-in connection state.

According to a special embodiment of the last-mentioned development of the invention, the plug-in connection is designed as a pin-socket plug-in connection, at least one of the plug parts being able to couple pin contacts to the corresponding socket contacts of the other plug part and oriented essentially parallel to the pin contacts, in particular projecting beyond the pin contacts Plug-in and fixation members, in particular guide pins, which can be inserted into the plug-in and fixation openings of the other plug part while aligning the pin contacts to the socket contacts. The plug-in guide and fixation members and the complementary plug-in guide and fixation openings ensure simple coupling of the two plug-in connection parts and also ensure that incorrect coupling of the two plug parts is excluded. In addition, the plug-in guide and fixing members can be arranged relative to the pin contacts in such a way that they protect the latter from damage even when the two plug parts are separated from one another. In particular, the plug-in and fixing elements prevent the pin contacts in the plug-in connection state from being damaged by lateral forces by introducing any lateral forces into the housing of the other connector part in question and above into the profile housing.

Pins are preferably used as plug-in guide and fixing members. However, they can also be designed as web elements arranged around the pin contacts, in particular if the second plug part carries pin contacts.

In the case of a locking cylinder with a plug pull-out direction running transversely to one of the side faces of the web section, the cable is preferably led away from the second plug part transversely to the plug pull-out direction, in particular essentially perpendicularly in the direction away from the cylinder section. In this way, due to the narrower cross-sectional width of the web section, the space for the cable discharge from the second connector part, which is usually present anyway in the cylinder mounting bore of the door, can be used in a space-saving manner.

The holding part and the second plug part preferably have fixing elements which are in engagement with one another in the plug-in connection state and fix the relevant two parts relative to one another transversely to the plug pull-out direction, in particular in the direction along the cylinder axis. In connection with the already discussed plug-in guide and fixing elements on at least one of the plug parts and the complementary plug-in guide and fixation openings in the other plug part in question, the fixation elements create a fixation of the entire assembly of the second plug part and holding part against displacements transversely to the plug pull-out direction, the plug contacts are protected against shear loads. In the case of the construction proposed last, in particular a direct fixation of the holding part on the profile housing in the direction transverse to the plug pull-out direction can be dispensed with, which is associated with manufacturing advantages.

According to a proposed training of the last mentioned embodiment, the holding part has the second plug part transversely to the plug pulling direction between receiving shoulders as fixing elements.

According to a further variant, the fixing is realized transversely to the plug pull-out direction in that the holding part engages behind the second plug part in the plug pull-out direction with a wall section having a latching opening or a latching projection as a fixing element, the second connector part as a fixing element engaging a latching projection engaging in the latching opening or the has any locking projection of the wall section receiving locking opening.
Also in the embodiment of the locking cylinder with a plug pulling direction running transversely to a side surface of the web section, a clip that can be plugged onto the profile housing and is at least partially adapted to the cross-sectional contour of the profile housing can be considered as the holding part.

The clip can be pushed onto the profile housing in particular in the longitudinal direction of the cylinder section. It is also proposed to manufacture the clip from a spring steel. Utilizing the elastic spring forces of such a clamp, the second plug part can be secured particularly effectively relative to the first plug part.

According to a further development, the clamp has an upper clamp section from the side surface of the web section facing away from the plug connection with a free end engaging behind the second plug part and an edge of the web section away from the cylinder section with the free end engaging behind the plug connection free end embracing the lower bracket section. A bracket shaped in this way can be used simple means are brought into its position of use on the profile housing. The interruption of this clamp between the free ends of the integrally connected sections can be used to lead through the cable running off the second plug part or a part of the plug housing of the second plug part. Such a clip therefore fulfills several important functions and can also be produced in a simple and economical manner.

According to another variant, the holding part is designed as a holding band which can be laced around the profile housing and the second plug part and runs between two projections of the second plug part for fixing it, in particular when tightening against loosening, self-locking holding band. Such straps with self-locking are known per se and are used in electrical engineering, for example, as cable straps to bundle several individual cables into a strand. The retaining strap can, for example, run through a groove on the side of the second plug part facing away from the profile housing. Alternatively or additionally, it can be pulled through one or more loops on the relevant rear side of the second plug part. Such a tether solution is characterized by the fact that it is particularly inexpensive and enables simple assembly.

To protect the plug contacts of the plug connection from moisture, dust and the like, it is proposed to provide at least one of the plug parts with a seal. This can be a sealing disk arranged on the contact-side surface of the relevant plug part. An elastic sealing bead is also possible, which surrounds, for example, the edge of the plug part in question on its contacting side.

Fig. 1

eine Seitenansicht eines elektronischen Doppel-Profilschließzylinders, eingebaut in eine schematisch angedeutete Türe oder dergleichen;

Fig. 2

eine teilweise aufgebrochene Stirnansicht des Schließzylinders;

Fig. 3

eine Seitenansicht des Schließzylinders vor dem Anschließen eines Kabels;

Fig. 4a,b

Seitenansichten einer Klammer zur Erläuterung des Anschlußvorgangs des Kabels;

Fig. 5

eine Variante des Schließzylinders mit zwei durch Steckerverbindungen anzuschließenden Kabeln,

Fig. 6

eine teilweise aufgebrochene Seitenansicht einer zur Sicherung der Steckerverbindungen nach Fig. 5 verwendbaren Klammer vor dem Einbau,

Fig. 7a

eine Seitenansicht eines Schließzylinders gemäß eines weiteren bevorzugten Ausführungsbeispiels, bei dem die Steckerauszugsrichtung im wesentlichen senkrecht zu einer Seitenfläche eines Stegabschnitts verläuft,

Fig. 7b

eine Schnittansicht des Schließzylinders nach Fig. 7a mit der in Fig. 7a durch b-b markierten Schnittebene und mit einem herausgezogenen zweiten Steckerteil,

Fig. 7c

eine Seitenansicht des Schließzylinders nach den Fig. 7a und 7b mit aufgesetztem Halteteil,

Fig. 7d

eine Querschnittsansicht des Profilgehäuses gemäß Fig. 7c mit der in Fig.7c durch d-d markierten Schnittebene, wobei die Steckerteile im Steckverbindungszustand dargesellt sind,

Fig. 8

eine Querschnittsansicht einer Variante des Ausführungsbeispiels gemäß den Fig. 7a bis 7d,

Fig. 9a

eine Queschnittsansicht einer weiteren Variante des Ausführungsbeispiels gemäß der Fig. 7a bis 7d,

Fig. 9b

ein Detail des Schließzylinders nach Fig. 9a in einer Seitenansicht von rechts,

Fig. 9c

eine Variante des in Fig. 9b gezeigten Details in entsprechender Seitenansicht und

Fig. 10

ein weiteres Ausführungsbeispiel der Erfindung in der Seitenansicht.

Exemplary embodiments of the invention are explained in more detail below with reference to a drawing. Here shows:

Fig. 1

a side view of an electronic double profile locking cylinder, installed in a schematically indicated door or the like;

Fig. 2

a partially broken front view of the lock cylinder;

Fig. 3

a side view of the lock cylinder before connecting a cable;

4a, b

Side views of a clip to explain the connection process of the cable;

Fig. 5

a variant of the locking cylinder with two cables to be connected by plug connections,

Fig. 6

5 shows a partially broken side view of a clip that can be used to secure the plug connections according to FIG. 5 before installation,

Fig. 7a

2 shows a side view of a locking cylinder in accordance with a further preferred exemplary embodiment, in which the plug pull-out direction is essentially perpendicular to a side face of a web section,

Fig. 7b

7a shows a sectional view of the locking cylinder according to FIG. 7a with the sectional plane marked by bb in FIG. 7a and with a pulled out second plug part,

Fig. 7c

7a and 7b with attached holding part,

Fig. 7d

7c with the sectional plane marked by dd in FIG. 7c, the plug parts being shown in the plug-in connection state,

Fig. 8

6 shows a cross-sectional view of a variant of the exemplary embodiment according to FIGS. 7a to 7d,

Fig. 9a

7 shows a cross-sectional view of a further variant of the exemplary embodiment according to FIGS. 7a to 7d,

Fig. 9b

9a shows a detail of the locking cylinder according to FIG. 9a in a side view from the right,

Fig. 9c

a variant of the detail shown in Fig. 9b in a corresponding side view and

Fig. 10

a further embodiment of the invention in side view.

1 and 2 includes a profile housing 1 with a profile housing 1 with two coaxially arranged cylinder sections 3, which are connected by a common, extending over the entire axial length of the profile housing 1, radially projecting from the cylinder sections 3 web section 5 are. Each cylinder section 3 contains in a bore 7 (FIG. 2) a cylinder core 9 with an insertion channel 11 for a flat key 13. The cylinder cores 3 are conventionally mechanically lockable relative to the profile housing 1 by a plurality of tumblers 15. The flat key 13 controls the tumblers 15 in the usual way. Axially between the cylinder sections 3 there is a cam part 17 which can alternately be coupled to one of the cylinder cores 9.

Fig. 1 shows schematically the installation of such. Profile lock cylinder in a plug-in door lock indicated by 19 by its flat side walls of a door 21 with a lock insertion opening 23. The profile lock cylinder 1 sits with its cam part 17 within the plug-in door lock 19 and is fastened by a screw 25 screwed into the web section 5.

Areas of the profile housing 1 protruding beyond the door leaf 21 engage essentially flush with door plates 27, which at the same time also cover the insertion opening 23.

The flat key and lock cylinder combination does not have only a mechanical locking function, but also allows the contact-free transmission of control information signals between a control circuit 29 integrated in the flat key 13 and a control and power supply circuit assigned to the locking cylinder, generally designated 31. For this purpose, the flat key 13 contains, for example in its key shaft 33, an information transmission element 35 which is coupled in a contact-free manner with an information transmission element 37 arranged in the profile housing 1 at a point which is aligned with the element 35 when the flat key 13 is inserted. The elements 35, 37 can, for example, be coupling coils which can be coupled inductively to one another. The control and power supply circuit transmits via the elements 35, 37 the electrical energy required for the operation of the control circuit 29 and optionally sends control signals which synchronize the operation of the control circuit 29 with the operation of the circuit 31. The control information signals sent by the control circuit 29 are, in particular, encryption data, which are compared in the control and power supply circuit 31 with encryption data on the lock cylinder side. The circuit 31 can be part of a higher-level system, for example an access control system or an alarm system; however, it can also control an additional locking function of the locking cylinder, which for this purpose can include a locking device, not shown, which can be controlled by control signals from the circuit 31, for example an electromagnetically actuated locking device, which additionally locks the cylinder core 9 relative to the profile housing 1, and which Correspondence of the encryption information transmitted between the circuits 29, 31 is unlocked.

The control and power supply circuit 31 is arranged with at least some of its electronic components outside the profile housing 1, as indicated at 39; it can also, as shown at 41, comprise circuit components arranged within the profile housing 1. In any case, the externally arranged circuit components 39 of the circuit 31 are connected to the information transmission element 37 and possibly the circuit components 41 of the locking cylinder via a multi-core, flexible cable 43 and a plug connection 45. The plug connection 45 comprises, as best shown in FIG. 2, a first plug part 49 arranged fixedly on one of the two mutually parallel side surfaces 47 of the web section 5, onto which a second plug part 51 fastened at the end of the cable 43 is parallel to the side surface 47 and at right angles to it Cylinder section 3 can be plugged on or from which the plug part 51 can be pulled in the opposite direction. An essentially U-shaped clip 53 made of elastic plastic material fixes the cable-side plug part 51 both in the plug pull-out direction and transversely thereto on the profile housing 1. The clip 53 has a shape adapted to the cross-sectional contour of the profile housing 1 and covers the plug connection 45 with its web 55 Legs 57, 59 adjoin the web 55 on both sides, positively engaging over the cylinder section 3 or the edge of the web section 5 remote from the cylinder section 3 and holding the clamp 53 on the profile housing 1.

The plug parts 49, 51 sit in a recess 61 of the side surface 47 of the web section 5, which extends without undercut to the edge of the web section 5 remote from the cylinder section and is delimited transversely to the plug direction of the plug connection 45 by shoulders 63. The shoulders 63 are spaced apart from the plug part 51 Web 55 of the clamp 53 are formed on both sides of a recess 65 receiving the plug parts 49, 51, projections 67, which engage between the plug part 51 and the shoulders 63 and both the clamp 53 and the plug part 51 transversely to the plug direction of the plug connection 45 on the profile housing 1 fix.

For fixing the plug part 51 in the plug pull-out direction, a stop 69 is formed by eccentric connection of the cable 43 on the side of the plug part 51 facing the cable 43, which in the plug pull-out direction has a shoulder 71 opposite the recess 65 formed in the web 55 of the clamp 53. The bracket 53 supported with its leg 57 on the cylinder section 3 thus secures the plug part 51 relative to the profile housing 1 even in the plug pull-out direction.

The connection of the cable 43 to the locking cylinder will be explained below with reference to FIGS. 3, 4a and 4b. FIG. 3 shows the area of the plug part 49, which is the pin part of the plug connection 45. The plug part 51 is designed as a flat plug part with a substantially cuboid-shaped plug body and is plugged with its flat side against the plug part 49 against the bottom of the recess 61. The clip 53, which forms a separate component from the plug part 51 and the cable 43, is previously attached to the cable 43. In the area of the transition from its web 55 into the leg 59, it has an opening 73 which is narrower transversely to the longitudinal direction of the clamp 53 at least by the width of the shoulder 71 than the corresponding dimension of the plug part 51. The opening is in the longitudinal direction of the clamp 53 73 wider than the flat side dimension of the plug part 51, so that the plug part 51, as indicated in FIG. 4a, is offset by 90 ° from its position of use can be inserted through the opening 73 of the clamp 53 and then rotated into its locking position (FIG. 4b), in which the stop surface 69 lies opposite the shoulder 71. After the plug part 51 has been plugged onto the plug part 49, the clip 53 is placed with its leg 59 onto the web section 5 and the leg 57 is snapped onto the cylinder section 3, the plug parts 49, 51 being inserted into the recess 65.

For additional fixation of the leg 57 to the cylinder section 3 of the profile housing 1, a latching projection 75 is formed on the inside of the leg 57, which latches into a latching opening 77 at the apex of the cylinder section 3. The latching opening 77 is expediently the housing bore which is required anyway for the introduction of the tumblers 15 and which, in contrast to the other tumbler bores of the profile housing 1, is not closed. In the exemplary embodiment shown, the axially innermost bore is used for locking the clamp 53.

Although a double locking cylinder has previously been described as an exemplary embodiment, the explanations apply correspondingly to a profile half cylinder which instead of two cylinder cores has only one cylinder core and has a profile housing which is correspondingly shortened in the axial direction, as shown in FIG the right-hand edge of a corresponding profile half-cylinder marking the dot-dash line x is indicated, the indication "right" referring to the drawing.

Profile half cylinders are used in particular for doors, such as garage doors or device housing flaps, which should only be lockable from one side using a key.

In addition to the information transmission element 37 explained above, the locking cylinder can comprise a further information transmission element assigned to its second cylinder core, as indicated at 37 '. The two elements 37 and 37 'can be connected to the control and power supply circuit 31 via a common plug connection 45 and a common cable 43. Since this requires a comparatively thick and therefore stiff, multi-core cable in individual cases, in a variant two separate cables can be connected to the locking cylinder via plug connections. It is understood that even with a single information transmission element, which, however, requires a multi-core cable for its operation, two separate cables can be used. In the variant of FIGS. 5 and 6, the components which correspond to the locking cylinder of FIGS. 1 to 4 are provided with the reference numbers of FIGS. 1 to 4 and for distinction with the letter a. To explain the structure and the mode of operation, reference is made to the description of FIGS. 1 to 4.

The two cables 43a to be connected are assigned separate plug connections 45a, which are arranged on opposite side surfaces 47a of the web section 5a. A clip 53a, which surrounds the profile housing in a ring shape and is positively adapted to the cross-sectional contour of the profile housing, fixes the cable-side connector parts 51a of the two connector connections 45a together on the profile housing, while the connector housing-side connector parts 49a are in turn firmly attached to the web section 5a. The clamp 53a consists of two legs 83, which are connected to one another in one piece via a flexible joint region 81, with a region 85 encompassing the cylinder section 3a of the profile housing and a web region 87 following the web section 5a. The joint region 81 connects the ends of the web regions 87 and at the same time delimits an insertion opening 73a for attaching the clamp 53a to the two cables 43a. The clamp 53a contains 87 cutouts 65a in its two web areas with projections 67a and shoulders 71a for fixing the plug parts 51a to the profile housing. The plug parts 49a, 51a in turn are seated in recesses 61a of the type already explained. At the ends of the cylinder regions 85, locking projections 75a are formed, which together engage in a locking opening 77a at the apex of the cylinder section 3a. Here, too, the latching opening 77a can be formed by an unlocked receiving bore of one of the tumblers, in particular the axially innermost tumbler

Another preferred exemplary embodiment of the invention is described below in various variants. Parts or elements which function essentially the same as those of the first exemplary embodiment are identified by corresponding reference numerals and a lower case letter. To avoid repetition, the following explanations are essentially directed to differences from the exemplary embodiments already described, combinations of elements of the exemplary embodiment yet to be described with elements of the exemplary embodiments already described being entirely possible.

In the exemplary embodiment of the invention shown in FIGS. 7a to 7d, the first plug part 49b is an integral part of a printed circuit board 90, which optionally carries electronic components of the control and power supply circuit. The circuit board 90 is arranged in a recess 92 in the region of one of the side surfaces 47b of the web section 5b, a flat side of the circuit board 90 being essentially flush with the side surface 47b. The first connector part is defined by that 90 sockets 94 are provided in the printed circuit board, which pin contacts 96 of the second connector part 51b can receive. The plug sockets 94 are oriented in such a way that the plug pull-out direction of the plug connection 49b, 51b is essentially perpendicular to the side surfaces 47b of the web section 5d, as can be seen in particular from FIG. 7d, which shows the arrangement in the assembled state.

The second plug part 51b has a substantially cuboid plug housing with laterally projecting pin contacts 96 and a cable lead oriented essentially perpendicular to these pin contacts in the direction away from the cylinder section 3b.

The second plug part also has plug-in guide and fixing elements in the form of pins 98 which, parallel to the pin contacts 96, but projecting in terms of length, protrude from the plug housing of the second plug part 51b and engage in complementary plug-in guide and fixing openings 100 in the board 90 . The plug guide and fixing pins 98 and the associated openings 100 ensure that the plug connection can only be coupled if the pin contacts 96 and the sockets 94 which are assigned to one another are aligned with one another. They also ensure that, in the plug-in connection state, no shear forces damaging the pin contacts 96 act on the pin contacts 96 by absorbing forces transversely to the direction in which the connector is pulled out and dissipating them via the board 90 to the profile housing 1b. To fix the second connector part 51b relative to the first connector part 49b, a clip 53b made of spring band steel is provided, which is adapted in sections to the contour of the profile housing 1b and an upper section encompassing the side surface of the web section 5b facing away from the plug connection 49b, 51b 57b with a the second plug part 51b engaging free end 102 and one of the side surface of the web section 5b facing away from the plug connection has the edge of the web section 5b distant from the cylinder section 3b with a free end 104 encompassing lower clamp section 59b. The end section 102 of the clamp 53b engaging behind the second plug part 51b lies essentially with its entire surface overlapping the second plug part 51b on its rear side against the plug housing of the second plug part 51b, so that it rests essentially parallel to the plug pull-out direction due to the spring force of the clamp 53b presses the second plug part 51b and in this way ensures a secure fixation of the second plug part parallel to the plug pull-out direction. On the end section 102 of the clamp 53b, lateral tabs or shoulders 106 are formed, which protrude toward the web section 5b and form-fit between the second plug part in the direction along the axis of the cylinder section 3b and thus ensure a fixation of the second plug part 51b transversely to the plug pull-out direction .

Between the two free ends 102 and 104, the clamp 53b has an interruption, which is used to lead the cable 43b substantially perpendicular to the pin contacts 96 in the direction away from the cylinder section 3b.

As indicated by the arrow 108 in Fig. 7a, the clamp 53b can be pushed in the direction along the cylinder section 3b, if necessary with the aid of a spreading tool, onto the profile housing 1b and brought into its mounting position. Alternatively, of course, a corresponding clip that can be snapped onto the profile housing transversely to the cylinder section can be used.

By the interaction of the plug guide and fixing pins 98 and the associated openings 100 and Shoulders 106 and the areas of the plug housing of the second plug part 51b which are located closely adjacent to one another ensure that the plug connection 49b, 51b is excellently fixed both in the plug pull-out direction and transversely thereto. Furthermore, this also results in an axial fixation of the clip relative to the profile housing, it being possible to dispense with separate axial fixing elements for direct fixing of the clip to the profile housing. if desired, it is of course also possible to provide such elements which directly fix the clamp 53b in the axial direction of the cylinder section 3b to the profile housing 1b.

As indicated in FIGS. 7a and 7b by dashed lines, a protruding element 110 can also be arranged on the second plug 51b, which engages in a complementary opening 112 in the side wall 47b of the web section 5b in the plug-in connection state. This measure ensures that any transverse forces acting on the second plug part 51b are derived directly from the profile housing 1b.

FIG. 8 shows a variant of the exemplary embodiment according to FIGS. 7a to 7d. Instead of the shoulders 106, the clip 53c of the exemplary embodiment according to FIG. 8 has a latching opening 106c in its end section 102c which engages behind the second plug part 51c. A dome-shaped latching projection 113 of the second plug part 51c engages in this latching opening 106c. In this way, the second plug part 51c and the clip 53c are fixed relative to one another in all directions transverse to the plug pull-out direction.

9a shows a further variant of the exemplary embodiment according to FIGS. 7a to 7d. A retaining element 53d is a tied around the profile housing 1d and a groove 112d of the second connector part 51d on that of the contacting side Continuous holding strap provided on the opposite side. The retaining strap 53d has a self-locking loop head 114. The self-locking mechanism consists in that the end 116 of the retaining strap 53d drawn through the loop head 114 can no longer be pushed back towards the loop head 114, but can still be pushed through in the not yet fully tightened state the loop head 114 can be pulled. Ties of this type are known, for example, as cable ties from electrical engineering.

9b shows a detailed section of the retaining band 53d running through the groove 112d in a side view. It can be seen from this that the cable 43d is carried away laterally offset from the groove 112d by the second plug part 51d.

A corresponding detailed view is shown in FIG. 9c. The retaining band 53e is pulled by loops 112e on the back of the second plug part 51e.

As indicated by dashed lines in FIG. 8, it is proposed to provide an elastic sealing bead 118 on the second plug part 51c, which keeps moisture, dust and the like away from the plug contacts in the plug-in connection state.

A further exemplary embodiment of the invention is shown in FIG. The locking cylinder 1f according to FIG. 10 is characterized in that the circuit components of the control and power supply circuit which are arranged separately from the locking cylinder via two cables 43f and 43f 'and two plug connections 45f and 45f' with a plug pulling direction running perpendicular to the side wall 47f of the web section 5f are connected, the first connector part 49f and 49f 'being fastened to the web section 5f and the second connector parts 51f, 51f' by means of a common clamp 53f relative to the respective one first connector parts 49f and 49f 'are secured. The clamp 53f has two latching openings 106f and 106f 'in its end section 102f which engages behind the second plug parts 51f and 51f'. Relevant dome-shaped locking projections 113 and 113 f 'of the second plug parts 51f and 51f' engage in these latching openings 106f and 106f '. The two plug connections can be assigned to one information acquisition device or, if appropriate, two separate information acquisition devices.

Claims (34)

1. A cylinder lock, comprising

   a shaped housing (1),

   at least one cylinder plug (9) mounted rotatably in a bore (7) in the shaped housing (1) and blockable relative to the shaped housing (1) by mechanical tumblers (15), said cylinder plug (9) comprising an insertion channel (11), extending in the direction of the cylinder axis, for a flat key (13) controlling the tumblers (15), and a data detection device (37) arranged on the shaped housing (1) and responding in a contactless manner to control data signals from a control circuit (29) on the flat key (13), which data detection device (37) is in turn connected to an electronic control and power supply circuit (31) with at least some of its circuit components (39) arranged separately from the cylinder lock, connection of the circuit components (39) separate from the cylinder lock being effected by means of a cable (43) and a plug connection (45) consisting of two mutually complementary plug parts (49, 51),

   characterised in that a first one (49) of the two plug parts is attached firmly to the shaped housing (1) and the cable (43) carries a second plug part (51) which may be removably plugged into the first plug part and in that a retaining part (53) may be fixed to the shaped housing (1), which retaining part (53) grips the second part (51) from behind at least in the plug extraction direction and secures it relative to the first plug part (49), especially against withdrawal from the first plug part.
2. A cylinder lock according to claim 1, the shaped housing (1) comprising a cylinder portion (3) containing the bore (7) for the cylinder plug (9) and a web portion (5) projecting from the cylinder portion (3) radially with respect to the cylinder axis and defined by two side faces (47) extending approximately parallel with each other along the cylinder portion (3), characterised in that the first plug part (49) is arranged on one of the side faces (47) with the plug extraction direction extending along the side face (47) and especially perpendicularly away from the cylinder portion (3).
3. A cylinder lock according to claim 2, characterised in that the retaining part (53) overlaps at least the second plug part (51) both in the plug extraction direction and also perpendicularly thereto in both directions and fixes it relative to the shaped housing (1) between mutually opposing stops (67).
4. A cylinder lock according to claim 3, characterised in that the retaining part (53) contains a recess (65) in its face adjoining the side face (47) of the web portion (5), in which recess (65) the two plug parts (49, 51) jointly engage.
5. A cylinder lock according to any one of claims 2 to 4, characterised in that at least the second plug part (51) is arranged in a recess (61) in the side face (47) of the web portion (5), which recess (61) is defined perpendicularly to the plug extraction direction and on both sides of the second plug part (51) at a distance therefrom by shoulders (63), and in that the retaining part (53) comprises projections (67) on both sides of the second plug part (51), which projections (67) engage in the recess (61) and fix the second plug part (51) and the retaining part (53) on the shaped housing (1) perpendicularly to the plug extraction direction.
6. A cylinder lock according to any one of claims 2 to 5, characterised in that the retaining part (53) extends over the side of the cylinder portion (3) diametrically remote from the web portion (5) and carries a locking projection (75) which engages in a guide bore (77) in at least one of the tumblers (15), especially the guide bore in the innermost tumbler.
7. A cylinder -lock according to any one of claims 2 to 6, characterised in that the first plug part (49) is so arranged that the plug extraction direction extends perpendicularly, especially at right angles, away from the cylinder portion (3) and in that the retaining part (53) extends over the side of the cylinder portion (3) diametrically remote from the web portion (5).
8. A cylinder lock according to any one of claims 2 to 7, characterised in that the retaining part is constructed as a clip (53; 53a) which is conformed to the cross-sectional contour of the shaped housing (1) and may be clipped onto the shaped housing (1) perpendicularly to the cylinder axis.
9. A cylinder lock according to claim 8, characterised in that at least the second plug part is constructed as a flat plug part (51) lying flat against the web portion (5),
   in that the clip (53) has, in the area of the edge of the web portion (5) remote from the cylinder portion (3), a cable passage opening (73) which, perpendicularly to the clip (53), is narrower than the width of the large side of the flat plug part (51), when viewed along the side face (47) of the web portion (5), and has an aperture width along the clip (53) which permits passage of the flat plug part (51).
10. A cylinder lock according to claim 9, characterised in that the cable passage opening (73) surrounds the edge of the web portion (5).
11. A cylinder lock according to any one of claims 2 to 10, characterised in that the cable (43) is connected to the second plug part (51) eccentrically with respect to the centre thereof.
12. A cylinder lock according to any one of claims 8 to 11, characterised in that the clip (53) is substantially U-shaped and, with a first leg (57), surrounds the cylinder portion (3) and, with a second leg (59), surrounds the face of the web portion (5) remote from the cylinder portion (3), as well as covering the two plug parts (49, 51) with its web (55) connecting the legs (57, 53).
13. A cylinder lock according to any one of claims 2 to 12, especially in the form of a double cylinder lock whose shaped housing contains two cylinder cores (9a) respectively in two cylinder portions (3a) separated axially from each other by a key bit part but connected to form a unit by a common web portion (5a), a data transmission device (37) for transmitting the control data signals from the flat key (13) being associated with at least one of the two cylinder plugs (9a),
    characterised in that the circuit components (39),
    arranged separately from the cylinder lock, of the control and power supply circuit (31) are connected via two cables (43a) and two plug connections (45a), the first plug part (49a) of each of which is fixed to the web portion (5a) and the second plug part (51a) of each of which is connected to the cable (43a) and in that the two second plug parts (51a) are secured against withdrawal by a common retaining part (53a).
14. A cylinder lock according to claim 13, characterised in that the first plug parts (49a) are arranged on mutually opposing side faces (47a) of the web portion (5a) and in that the retaining part is constructed as a clip (53a) enclosing the shaped housing between two legs (83) extending perpendicularly to the cylinder axis, each of the legs (83) comprising means of fixing the second plug part (51a).
15. A cylinder lock according to claim 14, characterised in that the legs (83) are of a shape conformed to the cross-sectional contour of the shaped housing and surround the shaped housing substantially completely.
16. A cylinder lock according to claim 15, characterised in that the legs (83) are connected hingedly together by a joint (81) and carry locking members (75a) at their ends remote from the joint (81) for fixing to the shaped housing.
17. A cylinder lock according to claim 15 or claim 16, characterised in that the joint (81) connects the ends of the legs (83) adjoining the web portion (5a).
18. A cylinder lock according to claim 1, the shaped housing (1b .. 1d; 1f) comprising a cylinder portion (3b .. 3d; 3f) containing the bore (7b .. 7d; 7f) for the cylinder plug (9b .. 9d; 9f) and a web portion (5b .. 5d; 5f) projecting from the cylinder portion (3b .. 3d; 3f) radially with respect to the cylinder axis and defined by two side faces (47b .. 47d; 47f) extending substantially parallel with each other along the cylinder portion, characterised in that the first plug part (49b .. 49d; 49f, 49f') is arranged on the web portion (5b .. 5d; 5f) in the area of one of the side faces (47b .. 47d; 47f) with the plug extraction direction extending perpendicularly - especially normally - to the side faces (47b .. 47d; 47f).
19. A cylinder lock according to claim 18, characterised in that, in the area of the one side face (47b .. 47d; 47f), the web portion (5b .. 5d; 5f) has a recess (92; 92c; 92d; 92f) at least partially accommodating the first plug part (49b .. 49d; 49f, 49f').
20. A cylinder lock according to claim 19, characterised in that in the recess the first plug part (49b .. 49d; 49f, 49f') projects outwards, but not beyond the side face (47b .. 47d; 47f).
21. A cylinder lock according to any one of claims 18 to 20, characterised in that the first plug part (49b .. 49d; 49f, 49f') is an integral component of a structural unit (90; 90c; 90d; 90f), especially a printed circuit board, especially comprising circuit components of the control and power supply circuit.
22. A cylinder lock according to claim 21, insofar as the latter relates to claim 19 or claim 20, characterised in that the structural unit is arranged in the recess (92; 92c; 92d; 92f).
23. A cylinder lock according to any one of claims 18 to 22, characterised in that at least one of the plug parts (51b .. 51d; 51f, 51f') comprises plug guide and fixing members (98; 98c; 98d; 98f, 98f'), especially guide pins, in the vicinity of its electrical contact elements, which plug guide and fixing members (98; 98c; 98d; 98f, 98f') may be inserted, with mutual alignment of the mutually complementary electrical contact elements of the two plug parts (49b..49d; 49f, 49f' and 51b..51d; 51f; 51f' respectively), into plug guide and fixing openings (100; 100c; 100d; 100f, 100f') in the other plug part (49b..49d; 49f, 49f').
24. A cylinder lock according to claim 23, characterised in that the electrical contact elements of the plug part (51b..51d; 51f, 51f') provided with plug guide and fixing members (98; 98c; 98d; 98f, 98f') project outwards from the plug part (51b..51d; 51f, 51f') but not beyond the plug guide and fixing members (98; 98c; 98d; 98f, 98f').
25. A cylinder lock according to any one of claims 18 to 24, characterised in that the cable (43b .. 43e; 43f, 43f') is conveyed away from the second plug part (51b .. 51e; 51f, 51f') perpendicularly to the plug extraction direction, especially substantially normal thereto, in the direction away from the cylinder portion (3b .. 3d; 3f).
26. A cylinder lock according to any one of claims 18 to 25, characterised in that the retaining part (53b .. 53d) and the second plug part (51b .. 51d), when in plug connection, comprise fixing elements (106; 106c; 112; 112d; 112e) engaged with each other and fixing the two parts (51b .. 51d, 53b.. 53d) relative to each other and perpendicularly to the plug extraction direction, especially along the cylinder axis.
27. A cylinder lock according to claim 26, characterised in that the retaining part (53b) comprises as fixing elements shoulders (106) accommodating the second plug part (51b) between them perpendicularly to the plug extraction direction.
28. A cylinder lock according to claim 26 or claim 27, characterised in that the retaining part (53c; 53f) grips the second plug part (51c; 51f, 51f') from behind in the plug extraction direction by means of a wall portion (102c; 102f) comprising a locking opening (106c; 106f, 106f') or a locking projection as fixing element, the second plug part (51c; 51f, 51f') comprising as fixing element a locking projection (112; 112f, 112f') engaging in the locking opening (106c; 106f, 106f') or a locking opening accommodating the locking projection which the retaining part may comprise.
29. A cylinder lock according to any one of claims 18 to 28, characterised in that the retaining part (53b .. 53d; 53f) is constructed as a clip, especially of spring band steel, which is conformed at least in portions to the cross-sectional contour of the shaped housing (1b .. 1d; 1f) and which may be clipped on the shaped housing especially in the longitudinal direction of the cylinder portion (3b .. 3d; 3f).
30. A cylinder lock according to claim 29, characterised in that the clip (53b; 53c; 53f) comprises an upper portion (57b; 57c; 57f) surrounding the cylinder portion (3b; 3c; 3f) from the side face of the web portion (5b; 5c; 5f) remote from the plug connection, said upper portion (57b; 57c; 57f) comprising a free end (102; 102c; 102f) gripping the second plug part (51b; 51c; 51f) from behind, and a lower clip portion (59b; 59c; 59f) surrounding, from the side face of the web portion (5b; 5c; 5f) remote from the plug connection and with a free end (104; 104f; 104f), the edge of the web portion (5b; 5c; 5f) remote from the cylinder portion (3b; 3c; 3f).
31. A cylinder lock according to any one of claims 18 to 28, characterised in that the retaining part (53d; 53e) is constructed as a retaining strip, especially a retaining strip which locks itself against loosening when taut, which may be tied around the shaped housing (1d; le) and the second plug part (51d; 51e) and which passes between two projections (at 112d; at 112e) of the second plug part (51d; 51e) for fixing thereof perpendicularly to the plug extraction direction.
32. A cylinder lock according to any one of the preceding claims, characterised in that at least one of the plug parts (51c) carries a seal (118) which seals the plug contacts (96c) externally against moisture.
33. A cylinder lock according to any one of claims 18 to 32, characterised in that the circuit components, arranged separately from the cylinder lock, of the control and power supply circuit are connected via two cables (43f, 43f') and two plug connections (45f, 45f'), the first plug part (49f, 49f') of each of which is fixed to the web portion (5f) and the second plug part (51f, 51f') of each of which is connected to the cable (43f, 43f') and in that the two second plug parts (51f, 51f') are secured relative to the relevant first plug parts (49f, 49f'), especially against withdrawal, by a common retaining part (53f).
34. A cylinder lock according to any one of claims 1 to 12 and 18 to 32, it being constructed as a double cylinder lock whose shaped housing contains two cylinder cores (9) respectively in two cylinder portions (3) separated axially from each other by a key bit part but connected to form a unit by a common web portion (5), each of the two cylinder plugs (9) having associated with it a separate data detection device (37, 37') for transmitting control data signals from the flat key (13), both data detection devices (37, 37') being connected to the electronic control and power supply circuit (31), whose circuit components (39) arranged separately from the cylinder lock may be connected via the cable (43) and the plug connection (45).

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