DE19848286A1 - Electromechanical locking system - Google Patents

Abstract

The system has a closure element (12) rotatably mounted in a cylinder element (10), esp. a replacement part for a standard format cylinder, for actuating a lock. A coupling assembly (14) rotatably mounted in the cylinder element can be moved from an idle state into a drive state for rotational coupling with the closure element. A key (16) can be rotationally coupled via the coupling assembly to the closure element and an electromechanical control unit (20) adjusts the coupling assembly. The control unit is mounted on one side of the closure element, so that the door's inner side and coupling assembly can be actuated from the other side of the closure element with a key. The key carries a communications unit for exchanging data with the control unit. An electric circuit made to actuate the coupling assembly contains a connection between the communications unit and the control unit. Independent claims are also included for a key, a coupling unit, a sliding element and a switching unit for a closure system.

Description

The invention relates to an electromechanical locking system for doors.

For example, in hotels there is a need for electromechanical Locking systems in which a key-specific key Gode can be transmitted to the castle. In the case of a suitable key switches the lock to a state that requires actuation of the lock mechanism for opening the door.

Such locking systems can be designed such that they - at for example after losing a key - new without much effort can be programmed to access by unauthorized persons to prevent others. Unauthorized copying of the electroni key is practically impossible.

DE 196 03 320 A1 describes an electronically programmable locking device system with a lock and a matching key, in which all electronic components of the lock in one Lock cylinders are integrated. The key carries a transponder chip and is inserted into an inner cylinder assigned to the outside of the door bar. On the side of a locking element assigned to the inside of the door, via which the lock mechanism can be acted upon are in the lock cylinder Linder an electronic assembly and a motor housed. The Motor actuates one located between the inner cylinder and the motor  nete mechanical coupling assembly to turn the key to connect the locking element when a from the transponder chip to the transmitted electronic assembly code is accepted. The commu Application between the key and the locking cylinder takes place via two induction coils, one of which is on the outer circumference of the key and the other on the one facing the key Front side of the lock cylinder is arranged. About an introductory Ren the key in the inner cylinder actuated button, which in the loading Richly arranged the induction coil, the electronic assembly pe activated on the other side of the locking element. The lines, through which the button with a battery arranged in the area of the motor rie and the induction coil connected to the electronic assembly are to bypass the mechanical coupling group by ei Cables running on the lower long side of the locking cylinder led through the shaft.

It is the problem (object) on which the invention is based To create a locking system for doors with the most compact opening possible easy to operate and versatile.

This object is achieved by the features of claim 1 and in particular in that one in a cylinder member for a lock rotatably mounted closing element for loading the lock, one Coupling assembly rotatably mounted in the cylinder member, which most coupling with the closing element from a freewheeling state in egg NEN driving condition is adjustable, via the coupling module non-rotatable key that can be coupled to the locking element and an electro mechanical control unit for adjusting the coupling assembly  are seen, the control unit on one side of the key is arranged and the coupling assembly of the other Side of the closing element is actuated by means of the key that Key to exchange information with the control unit one Communication unit carries and by pressing the coupling construction Group an electrical circuit can be closed, in which the Coupling assembly between the communication unit and the control unit an electrically conductive connection is established.

According to the invention, the coupling assembly is not only used for mechanical purposes fixed coupling of the key with the locking element, son is also part of an electrical circuit that through Actuation of the coupling assembly closed by means of the key becomes.

Due to the electrically conductive connection produced in this way the communication unit carried by the key directly with the tax unit connected. The front of the Zylin facing the key derorgans can due to the direct link between the tax unit and the key with fittings of any thickness and material be provided texture that a transmission electromagnetic shear waves between induction coils impossible.

Furthermore, an energy source can be in the circuit, for example Be arranged in the form of a battery which supplies the control unit, when the coupling assembly is actuated using the key. By Inserting the key into the cylinder member will then be the control unit switched on and at the same time the exchange of, for example,  Access code containing information between the control unit and the key.

On the provision of a separate communication body, e.g. B. an In production coil, and a switching device for example in the form of a Button in the key-side end of the cylinder member and of the cable shaft for leading from one end of the cylinder organ to the other Connecting lines can be omitted according to the invention.

According to a preferred embodiment of the invention, the Kopp lungsbaugruppe, in particular a sliding member of the coupling assembly pe, by actuating the key in the direction of a take-away position preloadable.

This can ensure that the coupling assembly pe - after actuation using the key and subsequent Ak Activation of the control unit by closing the circuit - automa table in a take-away position corresponding to the take-away condition jumps without requiring additional movement of the key is such.

According to a further preferred embodiment of the invention the communication unit comprises a key-specific communication kationsorgan that in a transponder unit designed as electronics assembly of the key is integrated, and one of an electronic assembly pe lock-specific communication or assigned to the control unit gan, the communication organs for communication with each other  are formed via electromagnetic waves and preferably in each case comprise at least one induction coil.

The key therefore bears the essentials for an information exchange Chen components of the locking system, whereby especially when according to a further preferred embodiment of the invention Control unit is housed in a housing of a knob, in Cylinder member is only to accommodate the coupling assembly.

According to a further preferred embodiment of the invention, he a transponder unit of the key extends at least in the area point through the induction coil of the control unit, before pulls the induction coil is wound directly on the transponder unit.

This allows compact communication on the key unit can be realized due to the short distance between the In induction coil of the control unit and an induction coil of the transpon comparatively little energy for the safe transmission of the required signals containing desired information.

According to a further preferred embodiment of the invention the cylinder member as instead of a lock cylinder, in particular one standardized profile cylinder, cylinder adapter usable with the lock educated.

This makes it simple, inexpensive and without much effort feasible retrofitting of existing doors enables what esp  especially in the hotel area or other areas with locking systems building complexes is an advantage.

The non-rotatable connection of a knob, in which according to the be already mentioned preferred embodiment of the Erin The control unit is housed with the closing element it is easy to lock and unlock the door from the inside at any time lock. Alternatively, the knob can also be from the closing element be decoupled to the use of the closing system according to the invention stems - while keeping the available in a rotary knob space - in conjunction with panic locks to enable for those who want to open the door at any time from the inside a lever handle can be acted on and the door cannot be activated by one of the Door knob assigned to the inside of the door may be lockable.

According to a further preferred embodiment of the invention, ei ne switching unit of the coupling assembly, which is used to adjust the coupling lung assembly from the freewheeling state to the driving state by egg NEN motor of the control unit is adjustable as a centrifugal force unit formed, the one by a motor of the control unit in rotation bare disc and on a slide of the sliding element facing Side of the disc comprises at least one centrifugal element, wherein at ro animal disc in a freewheeling state by the centrifugal force ver blocked path for a mandrel protruding towards the switching unit the slide to the control unit is released.

Such a centrifugal force unit makes one simple, few Component-requiring and compact construction and the  still reliably working arrangement for adjusting the coupling assembly created.

Further preferred embodiments of the invention, in particular before partial configurations of the key, the coupling assembly, the Sliding element and the switching unit, for which also independent protection by independent claims 27, 28, 29 and 30 respectively, are in the dependent claims, the description and the drawing given.

The invention will now be described by way of example with reference to the Drawing described. Show it:

Fig. 1 is a sectional side view of a locking system according to an embodiment of the invention,

Fig. 2 is an enlarged section of Fig. 1, and

3a and 3b are designed as a centrifugal unit switching unit. Ei nes locking system according to the invention in two difference current operating conditions.

The locking system according to Fig. 1 comprises a cylinder member 10, that is that is formed as a replacement piece for a standardized profile cylinder linder adapter as Zy and thus ren with conventional mortise for Tü is usable. In the cylinder member 10 , a closing element 12 is rotatably mounted about an axis of rotation 98 , which has a lock bit 72 for beating a locking mechanism of the lock. Furthermore, the cylinder member 10 is provided with a bore 74 for a faceplate screw for the rotationally fixed fixing of the cylinder member 10 in the lock.

The cylinder member 10 is approximately symmetrical, that is, the closing element 12 is arranged in a recess 17 between two sections of approximately the same axial length of the cylinder member 10 . The cylinder member 10 units depending on the given circumstances, in particular the dimensions of the door leaf, but also be designed asymmetrically metric. For example, the section of the cylinder member 10 assigned to an outside of the door can be shortened compared to the other section.

The locking system further comprises a key 16 , the key body 60 of which comprises a handle part 78 and a shaft part 84 . The handle part 78, the unit has a closer explained elsewhere communication 18 transmits, with the handle portion 78 and is integral Kommunikationsein 18 surrounding encapsulation 80 formed from plastic. In order to injection 80 , a recess 82 is provided, the z. B. allows attachment of the key 16 to a key fob.

The maximum penetration depth of the shaft part 84 into the cylinder member 10 is determined by stop shoulders 79 of the key body 60 .

The communication unit 18 comprises a transponder unit 52 and an induction coil 54 wound on the transponder unit 52 , one end of which is soldered to the grip part 78 of the key body 60 and the other end of which is soldered to a printed circuit board 56 . The circuit board 56 is glued into a channel-like recess of the key body 60 , which projects beyond the front end of the shaft part 84 pointing away from the grip part 78 and forms a contact tip 58 . The transponder unit 52 is received by the rear, fork-shaped end of the printed circuit board 56 and is fixedly connected to the printed circuit board 56 and the key body 60 by pouring it into an electrically insulating material (not shown). Between the key body 60 and the circuit board 56 a mica plate 62 is glued ge, which extends along the channel-like recess of the key body 60 and the circuit board 56 electrically insulated from the key body 60 . Openings 76 enable an intimate positive connection between the shaft part 84 of the key body 60 and an electrically insulating material (not shown) with which the channel-like recess can be poured out in order to protect the printed circuit board 56 from external influences.

In the preferably assigned to a door inside section of the Zylin derorgans 10 , a hollow shaft section 66 of a knob 68 is inserted, which integrally connects to the hollow shaft section 66 housing 50 and a cover cap 70 made of metal or plastic. The cover cap 70 can be screwed or locked to the housing 50 . By means of spring-loaded, in transverse bores 11 of the cylinder 10 goose sitting pins (not shown) which engage in annular recesses 67 of the hollow shaft portion 66 , the knob 68 is rotatable relative to the cylinder member 10 , but axially immovably held in the cylinder organ 10 . A single pen is sufficient for this.

The rotary knob 68 is coupled in a rotationally fixed manner to the closing element 12 via two spacers 48 a, 48 b. The coupling of these components to one another takes place in each case via end extensions and complementary end recesses or incisions, each of which enables a positive connection between two axially adjacent components. For example, each component can be provided with two diametrically opposite extensions or cutouts or incisions.

In order to adapt to different door leaf dimensions, which require different cylinder members, any number of spacers can in principle be arranged between the hollow shaft section 66 of the rotary knob 68 and the closing element 12 . A direct rotationally fixed coupling between the hollow shaft section 66 and the closing element 12 without spacers is possible in principle, but then a recess 46 , which is formed in the spacer 48 a and is explained in more detail elsewhere, would have to be hen in the hollow shaft section 66 .

In order to enable the use of the locking system with panic locks, decoupling between the rotary knob 68 and the locking element 12 can be ensured, for example by omitting the end extensions or recesses or incisions on the hollow shaft portion 66 or one of the spacers 48 a, 48 b be so that the knob 68 in the cylinder member 10 is freely rotatable.

In the rotary knob 68 , a control unit, not shown and represented only by the reference numeral 20 , is arranged, the purpose of which is described at another point.

The locking system further comprises a multi-part coupling assembly 14 rotatably mounted in the cylinder member 10 , which is marked in FIG. 1 by the box drawn with a dashed line and is also explained in more detail below with reference to FIG. 2.

The coupling assembly 14 comprises a multi-part outer sleeve which is formed by axially one behind the other, at least approximately sleeve-shaped and non-rotatably connected elements, namely by an inner cylinder 64 , a connector 94 and a receptacle 96 of a sliding member 24th The rotationally fixed coupling each Weil two axially adjacent elements - as described above in connection with the closing element 12 , the spacers 48 a, 48 b and the hollow shaft section 66 - by the engagement between end extensions and recesses or incisions of the ele ments.

The inner cylinder 64 has a key channel 65 for the key 16 and is provided with an annular recess 63 on its circumference in the region of its end facing the locking element 12 . In the annular recess 63 engages an unillustrated spring-loaded pin, a seated in a key-side of four transverse bores 13 of the cylinder member 10, and axially immovably on the one hand 64 holds the inner cylinder in the cylinder body 10 and the other manner of a Schleifkon clock independent of the angular position of the inner cylinder 64 ensures good electrical contact between the inner cylinder 64 and the cylinder 10 Zy.

The other three transverse bores 13 of the cylinder member 10 serve to receive pin springs, which together with inner pins 64 located in bores 15 of the inner cylinder 64 and outer pins arranged between the pin springs and the inner pins represent a coding which, in the manner of a pin tumbler, conventional locking cylinders with in the shaft part 84 of the key 16 formed incisions 85 cooperates. This ensures that the inner cylinder 64 can only be rotated in the cylinder member 10 when the key 16 , which is designed according to the coding, is fully inserted. Furthermore, this ensures that the key 16 can only be removed in a single angular position of the inner cylinder 64 , in which the bores 15 are aligned with the transverse bores 13 and in which the locking bit 72 of the locking element 12 is preferably close to its deepest, is in alignment with the angular position of the section of the cylinder member 10 provided with the transverse bores 11 , 13 .

The hollow shaft portion 50 of the rotary knob housing 50 can be modified so that it is provided with recesses or incisions accordingly the bores 15 or incisions 85 of the inner cylinder 64 or the key shaft part 84 , which interact with spring-loaded pins, which in the rest, not for axially holding the knob housing 50 in the cylinder member 10 serving rotary knob-side transverse bores 11 of the cylinder member 10 . By one of the like, similar to a pin tumbler arrangement can be ensured that the hollow shaft portion 50 engages in a certain angular position, which is matched to the angular position of the inner cylinder 64 for removing the key 16 such that the coupling assembly 14 from the driving position in the freewheeling position can be adjusted without the risk of jamming of components. This will be discussed again later.

The key-side and rotary knob-side cross bores 11 , 13 are - if they are required - closed by not shown grub screws ben, on which the respective pins in the direction of the axis of rotation 98 bias springs (not shown) are supported.

In addition, the locking system includes axially displaceable elements within the above-mentioned outer sleeve, namely a substantially disc-shaped contact section 26 and a likewise disc-shaped slide 28 in wesentli, which together with the receiving piece 96 and other components explained in connection with FIG. 2, the sliding member 24 form. In order to adapt to different axial lengths having cylinder members 10 , a corresponding number of separate spacers, in principle designed in accordance with the contact section 26 , can be arranged on the key side in the outer sleeve.

Furthermore, between a rotary knob is a cylindrical switching unit 22 disposed 68 facing end side of the receiving piece 96 and the control unit 20 in the hollow shaft portion 66 axially immovable substantially formed as a centrifugal unit and its construction and operation in greater detail with reference to FIG. 2, Fig. 3a and 3b is explained.

The sliding member 24 includes a relative to the receiving piece 96 in the axial direction slidable arrangement consisting of the Kontaktab section 26 and the slider 28 , which are connected by the coupling spring 30 mitein other. The slide 28 comprises an inner contact piece 32 which is electrically insulated from an outer driver 42 by insulating pieces 27 . On the rotary knob side, the contact piece 32 is provided with a mandrel 40 projecting in the direction of the switching unit 22 .

The contact portion 26 also includes an inner contact piece 32, which is quantitative plugged together with a handle-side spring receiver 29th The contact piece 32 and the spring receptacle 29 are electrically isolated by insulating pieces 25 with respect to an outer sleeve 31 .

While the slide 28 is guided over its driver 42 in the receptacle 96 , the contact portion 26 is outside of the receiving piece 96 and is - with the coupling assembly 14 assembled - via its outer sleeve 31 in the connector 94 .

The coupling spring 30 is placed on mutually facing, cylindrical projections of the contact piece 32 of the slide 28 and the spring receptacle 29 of the contact section 26 . A return spring 34 is supported with one end in an annular groove between the rotary knob-side insulating piece 27 of the contact section 26 and with its other end on an annular projection which is formed on the inner wall of the receiving piece 96 .

In an idle state or an idle position of the sliding member 24 according to Fig. 1 and Fig. 2, the or assembly to the free running condition of the coupling corresponds to 14, is seated a radial extension 43 of the Mitneh mers 42 in as an axial groove whose width is that of the radia len extension 43 corresponds to formed recess 44 of the receiving piece 96 , the driver 42 abutting a knob-side stop of the receiving piece 96 . In this position, the mandrel 40 of the slide 28 protrudes only a little into an opening 91 which is formed in a cylindrical cap 90 of the switching unit 22 facing the rotary knob-side end of the receiving piece 96 .

In the non-rotatably connected via the spacer 48 b with the closing element 12 , the knob 68 closest spacer 48 a, on which the receiving piece 96 abuts, is also an axial incision, the width of which corresponds to that of the radial extension 43 of the driver 42 , trained recess 46 is provided. The at the recesses 44 , 46 form - at a certain relative angular position between the non-rotatable with the coupling assembly 14 verbun which key 16 and the non-rotatable with the locking element 12 verbun which knob 68 - together a in the axial direction erstrec kenden slot. The two recesses 44 , 46 can - if the receiving piece 96 and the spacer 48 a formed accordingly and z. B. are nested - also overlap in the axial direction.

If the way for the mandrel 40 in the switching unit 22 in is enabled is discussed below followed below, the mandrel 40 and moving the radial extension 43 in Fig. 1 and Fig. 2 to the left, provided that the aforementioned certain relative Angular position is present. The sliding member 24 is then in a driving state or a driving position which corresponds to the driving position of the coupling assembly 14 , in which the radial extension 43 of the driver 42 is simultaneously in the recess 44 of the receiving piece 96 and in the recess 46 of the Spacer 48 a sits. A rotation of the key 16 in this position consequently causes entrainment of the driver 42 via the receiving piece 96 and entrainment of the spacer 48 a via the radial extension 43 of the entrainer 42 . In this way, a rotationally fixed coupling of the key 16 via the coupling assembly 14 to the locking element 12 takes place , which allows the lock mechanism to be acted on by means of the key 16 via the locking bit 72 of the locking element 12 .

The circuit board 56 , the contact piece 32 and the spring receptacle 29 of the contact section 26 , the coupling spring 30 , the contact piece 32 of the slide 28 and the mandrel 40 of the contact piece 32 are made of stainless steel.

The switching unit 22 of the coupler part shown in Fig. 3a and 3b lung assembly 14 is formed as a centrifugal unit and comprises a disc 36 on which the sliding member 24 side facing two ge genüber of the disk are disposed around defined by pivot pins 92 axes ver pivotable centrifugal elements 38 36 , of which is shown in Fig. 1 and Fig. 2 only one. The centrifugal elements 38 are cast parts.

The cap 90 mentioned above forms a rotary knob-side open housing for the disk 36 and the centrifugal force elements 38 . In addition to the opening 91 also mentioned above, two diametrically opposed bores, each with an internal thread, are formed in the side of the cap 90 facing the sliding member 24 , which bores cannot be seen in the figures.

In the disk 36 , a channel 88 is provided for the output shaft of an electric motor, not shown, of the control unit 20 housed in the rotary knob 68 . The central axes of the channel 88 and the opening 91 in the cap 90 coincide with the axis of rotation 98 . By means of a Ma denschraub 86 , which can be screwed through a recess in the cap 90 and a hole in the disk 36 perpendicular to the axis of rotation 98 in the switching unit 22 , the motor shaft can be fixed and thus connected to the disk 36 in a rotationally fixed manner.

Between the cap 90 and the inner wall 69 of the hollow shaft section 66 and between the mutually facing regions of the end faces of the cap 90 and the receiving piece 96, there is an intermediate space represented in FIG. 2 by the reference numeral 93 , through which the switching unit 22 with respect to the hollow shaft section 66 and the receiving piece 96 is electrically insulated. In Fig. 1 and Fig. 2 to the left of the switch unit 22 of the hollow shaft portion of the housing 50 seen 66, an unillustrated sleeve-shaped insulator prior to the inner wall 69, which is electrically insulated from the motor housing relative to the hollow shaft portion 66.

FIGS. 3a and 3b each show a side view of the key switching unit 22 with removed cap 90, wherein Fig. 3a became a Freilaufzu and 3b corresponds to Fig. A driving state of the coupling assembly 14.

The centrifugal elements 38 each have a semicircular cross section with a radius that is slightly smaller than that of the disc 36 . The bearing pins 92 each extend through a corner region of the centrifugal force elements 38 and are inserted into blind bores formed in the disk 36 . As is apparent from Fig. 3a, the centrifugal force elements 38 are arranged such that their straight sides lie in the same plane containing the axis of rotation 98 passing through the channel 88 of the disk 36 . The centrifugal force elements 38 are pushed against each other in such a way that they each terminate with the corner region located closer to their bearing pin 92 with the edge of the disk 36 and form a locking disk.

The centrifugal elements 38 are each biased by a two-armed, serving as return spring 39 spiral spring in their freewheeling corre sponding freewheeling position according to FIG. 3a, the bearing pins 92 each extending through the winding or turns of the return springs 39 . The return springs 39 are each with one arm completely and with the other, at the free end arcuate arm be rich in a parallel to the disc plane 36 A section of the centrifugal element 38th The straight Auslau fende arm of the return springs 39 is supported in each case in the region of its free end on the boundary wall of the incision partially indicated by a dash-dotted line in Fig. 3a and Fig. 3b. The other re arm of the return springs 39 is supported on a disc 36 and the centrifugal elements 38 surrounding, indicated by a dashed circle from the wall.

In the closing system of FIG. 1 and FIG. 2, the wall, the return springs not shown in Fig. 1 and Fig. 2 supported on the 39, formed by the inner wall of the cap 90, the free inner diameter of the cap 90 corresponds to the diameter of the disk 36 .

However, to clarify the principle of the switching unit 22 formed as a centrifugal unit, in FIG. 3a and FIG. 3b, the dotted circle of larger diameter than the disc 36. As a result, in Fig. 3b, in which the centrifugal elements 38 are each shown in its driving condition corresponding to the driving position which they occupy on a rotating disk 36, can be clearly seen that the return springs are compressed. 39 According to FIG. 3b, a gap is present between the straight sides of the centrifugal force elements 38 running parallel to one another, via which the path previously closed by the centrifugal elements 38 is accessible into the interior of the switching unit 22 , ie in the direction of the disk 36 .

The centrifugal unit is characterized in that, that regardless of how far the centrifugal force elements 38 rotating with them disc 36 ra dial pivoted independently from the free inner diameter of the wall bear against the return springs 39 against the spring force of the return springs 39 to the outside can be, the straight sides of the centrifugal force elements 38 always run parallel to one another, the width of the gap between the straight sides depending on the free inner diameter of the support wall.

In the following the operation of the closing system according to the invention stems described, the electrical or electronic aspects only be explained to the extent necessary for understanding the invention is required.  

In principle, the electronic assemblies of the control unit 20 and the transponder unit 52 can be designed in accordance with the components or assemblies described in German Offenlegungsschrift DE 196 03 320 A1 with regard to their structure, their characteristic data and, in particular, the exchange of information that can be carried out with them.

In contrast to the arrangement described in DE 196 03 320 A1, the output shaft of the motor of the control unit 20 is connected in a rotationally fixed manner to the disk 36 of the switching unit 22 and that assigned to the control unit 22 - and thus to the lock - and directly to the transponder unit 52 wound induction coil 54 is formed as part of the communication unit 18 attached to the key 16 . Due to the immediate proximity of this induction coil 54 to the transponder unit 52 , a large area including an induction coil for the transponder unit 52 that runs along the outer circumference of the key handle can be dispensed with. Rather, a communication element corresponding to such an induction coil and designed to communicate with the induction coil 54 by means of electromagnetic waves can be integrated into the transponder unit 52 .

By inserting the key 16 into the key channel 65 in the inner cylinder 64 , an electrical circuit is closed on the one hand when the contact tip 58 touches the contact piece 32 of the contact section 26 and the mandrel 40 via the coupling spring 30 through the opening 91 in the cap 90 is pressed against the locking disk, which is formed by the centrifugal force elements 38 in each case in the freewheeling position according to FIG. 3a.

The circuit includes the induction coil 54 , the circuit board 56 , the contact piece 32 of the contact section 26 , the spring receptacle 29 of the contact section, the coupling spring 30 , the contact piece 32 of the slide 28 , the mandrel 40 and the switching unit 22 , which the mandrel 40 on their centrifugal elements 38 contacted.

In this state, the coupling assembly 14 is still in its freewheeling state, but both the coupling spring 30 and the return spring 34 are compressed. The slider 28 is consequently biased in the direction of its driving position, into which it cannot be adjusted due to the path blocked by the centrifugal force elements 38 into the interior of the switching unit 22 .

However, there is an electrically conductive connection between the mandrel 40 and the output shaft of the electric motor of the control unit 20 fixed in the channel 88 of the disk 36 . The output shaft of the electric motor is connected to the one pole of a voltage source likewise accommodated in the rotary knob 68 in the form of batteries or rechargeable batteries. Between the other pole of the voltage source and the end of the induction coil 54 soldered to the key body 60 there is an electrically conductive connection via the housing 50 of the rotary knob 68 and thus the hollow shaft section 66 , the cylinder member 10 , which is seated in the one transverse bore 13 to form a sliding contact and in the ring recess 63 of the inner cylinder 64 einrei fenden pin, the inner cylinder 64 and the key body 60th

Consequently, the moment the mandrel 40 contacts the centrifugal elements 38 , the control unit 20 is activated. This starts the procedure for exchanging information, for example of access or authorization codes stored in memory elements of the electronics module of the control unit 20 and the trans ponder unit 52 , whereupon it is checked whether the key 16 is a suitable key for the Locking system. If this is not the case, the procedure is terminated and the control unit 20 is switched off so that the lock cannot be actuated since the coupling assembly 14 remains in its free-running state.

However, if the key 16 has a suitable code, the control unit 20 causes the electric motor to be switched on, the output shaft of which then causes the disk 36 to rotate. As a result, the centrifugal elements 38 are pressed against the spring force of the return springs 39 radially outwards against the inner wall of the cap 90 ge. The mandrel 40 can thus pass through the gap between the centrifugal force elements 38 , provided that the recesses 44 and 46 form the aforementioned slot for the radial extension 43 of the driver 42 .

This is the case when the rotary knob 68 can be locked in the angular position matched to the coupling assembly 14 or is otherwise provided for aligning the cutouts 44 and 46 . At Otherwise, by probier end twisting of the coupling assembly 14 to produce 16 the value of relative angular position by means of the key, in which the radial extension 43 snap into the recess 46, that is, the slider 28 can move as a whole to the left in FIG. 1 and FIG. 2.

Now the driving state of the coupling assembly 14 is Herge, so that by means of the key 16, the closing element 12 can be rotated to Beauf the lock.

The procedure for checking the key 16 , activating the electric motor and adjusting the coupling assembly 14 takes only a fraction of a second. B. in the order of 100 ms in claim. This period of time is practically not perceived by the user, ie a suitable key 16 can be inserted and rotated in one stroke into the inner cylinder 64 in order to actuate the lock for locking or unlocking the door. Preferably, the procedure-controlling microprocessor of the control unit 20 is in a standby mode which is not critical with regard to the energy requirement, as a result of which the start-up of the control unit 20 is accelerated after the circuit is closed and the time period elapsing until the motor is switched on is shortened.

The electronic assembly of the control unit 20 is designed in such a way that the control unit 20 and the electric motor are automatically deactivated after a certain time, which is sufficient for moving the radial extension 43 of the driver 42 into the recess 46 of the spacer 48 a, in order to or to conserve the battery unit. The return springs 39 pull the centrifugal force elements 38 back in the direction of the freewheeling position according to FIG. 3a, but the mandrel 40 prevents the centrifugal force elements 38 from completely reuniting to form the locking disk according to FIG. 3a.

The coupling assembly 14 thus remains even after the automatic switch-off of the control unit 20 in its entrained state, so that the locking element 12 can be rotated as long as the key 16 is in the inner cylinder 64 and acts on the contact section 26 , which thereby causes the slider 28 via the coupling spring 30 presses to the left in FIG. 1 and FIG. 2 and compresses the return spring 34.

When the key 16 is removed, the return spring 34 presses the contact section 26 to the right, which takes the slider 28 via the coupling spring 30, which now acts as a tension spring, causing the sliding member 24 and thus the coupling assembly 14 to return to their free running state and the Centrifugal force elements 38 can finally assume their freewheeling position according to FIG. 3a.

If the housing 50 of the knob 68 is designed to be locked in an angular position with the cylinder member 10 , which corresponds to that angular position of the coupling assembly 14 , in which removal of the key 16 is possible, and in which the recess 46 of the spacer 48 a with the recess 44 of the receiving piece 96 is aligned to form the slot, the radial expansion can 43 of with taker 42 due to the then defined relative angular position Zvi rule the spacer 48 a and the receiving piece 96 in the Ausspa tion 44 of the receiving piece 96 to jump back, without the There is a risk of jamming.

In order to realize an emergency operation that enables a certain number of switching operations even after the battery or accumulator unit of the control unit 20 is completely empty or in the event of a failure thereof, the control unit 20 can be provided with special capacitors, for example of the golden caps type . Such condensers, which can be charged in a very short time, discharge comparatively quickly. However, the stored energy is sufficient to carry out several information exchange and adjustment processes.

For such an emergency operation, a key can be designed as a special loading key and, for. B. be provided with a 6 V battery, with which the capacitors can be charged by inserting the charging key into the inner cylinder 64 and closing the circuit. Following the charging process, the locking system is capable of approximately ten switching operations using the energy stored in the capacitors, which is sufficient for bridging the downtime of the battery or accumulator unit.

Reference list

10th

Cylinder organ

11

Cross holes

12th

Closing element

13

Cross holes

14

Coupling assembly

15

Holes

16

key

17th

Recess

18th

Communication unit

20th

Control unit

22

Switching unit

24th

Sliding organ

25th

Insulating pieces

26

Contact section

27

Insulating pieces

28

Slider

29

Feather mount

30th

Coupling spring

31

Sleeve

32

Contact pieces

34

Return spring

36

disc

38

Centrifugal elements

39

Return springs

40

mandrel

42

Carrier

43

radial expansion

44

,

46

Recesses

48

a,

48

b Spacers

50

casing

52

Transponder unit

54

Communication organ, induction coil

56

Circuit board

58

Contact tip

60

Key body

62

Mica sheet

63

Ring recess

64

Inner cylinder

65

Key channel

66

Hollow shaft section

67

Ring recesses

68

Rotary knob

69

Inner wall of the hollow shaft section

70

Cover cap

72

Lock bit

74

drilling

76

Breakthroughs

78

Handle part

79

Stop shoulders

80

Overmolding

82

Recess

84

Shaft part

85

Incisions

86

Grub screw

88

channel

90

cap

91

opening

92

Bearing pin

93

Space

94

Connector

96

Recording piece

98

Axis of rotation

Claims (30)

1. Electromechanical locking system for doors with
one in a cylinder member ( 10 ), in particular a replacement piece for a standardized profile cylinder, for a lock rotatably mounted th locking element ( 12 ) for loading the lock,
a coupling assembly ( 14 ) which is rotatably mounted in the cylinder member ( 10 ) and can be adjusted from a freewheeling state to a driving state for the rotationally fixed coupling with the closing element ( 12 ),
a key ( 16 ) which can be coupled in a rotationally fixed manner to the locking element ( 12 ) via the coupling assembly ( 14 )
an electromechanical control unit ( 20 ) for adjusting the coupling assembly ( 14 ), wherein
the control unit ( 20 ) is arranged on one side of the locking element ( 12 ), in particular one assigned to the inside of the door, and the coupling assembly ( 14 ) can be actuated from the other side of the locking element ( 12 ) by means of the key ( 16 ), the key ( 16 ) for exchanging information with the control unit ( 20 ) carries a communication unit ( 18 ) and by actuating the coupling module ( 14 ) an electrical circuit can be closed, in which the coupling module ( 14 ) between the communication unit ( 18 ) and the Control unit ( 20 ) an electrically conductive connection is made. 2. Locking system according to claim 1, characterized in that the control unit ( 20 ), in particular with the coupling assembly ( 14 ) coupled motor of the control unit ( 20 ) for adjusting the coupling assembly ( 14 ), in particular a switching unit ( 22 ) of the coupling assembly ( 14 ) can be activated by closing the circuit. 3. Locking system according to claim 1 or 2, characterized in that the coupling assembly ( 14 ), in particular a sliding member ( 24 ) of the coupling assembly ( 14 ), can be pretensioned by the key actuation in the direction of a driving position. 4. Locking system according to at least one of the preceding claims, characterized in that the coupling assembly ( 14 ) comprises an immovable, in particular multipart, outer sleeve in the axial direction in the cylinder ( 10 ) and an axially displaceable sliding member ( 24 ) in the outer sleeve. 5. Locking system according to claim 4, characterized in that the sliding member ( 24 ) a by the key actuation be openable contact section ( 26 ) and a with a switching unit ( 22 ) cooperating, movable between a free-running position and a driving position and via a coupling spring ( 30 ) with the contact section ( 26 ) coupled slide ( 28 ). 6. Locking system according to claim 4 or 5, characterized in that the sliding member ( 24 ), in particular a slide ( 28 ) of the sliding member ( 24 ), comprises a radially projecting, in particular a radial extension ( 43 ) having driver ( 42 ) connected for the rotationally fixed coupling of the coupling assembly (14) with the closing element (12) in the driving position at the same time in a recess (44) of the outer sleeve and into a recess (46) of the closing element (12), in particular a rotationally fixed to the closing element (12) and preferably on the control unit ( 20 ) facing side of the closing element ( 12 ) arranged Di punch piece ( 48 a) protrudes. 7. Locking system according to claim 5 or 6, characterized in that the contact section ( 26 ) and the slide ( 28 ) each have a ge compared to the outer sleeve electrically insulated contact piece ( 32 ), the contact pieces ( 32 ) by the coupling spring ( 30th ) electrically connected to each other and together with the coupling spring ( 30 ) are part of the electrical circuit. 8. Locking system according to at least one of claims 5 to 7, characterized in that the slide ( 28 ) together with the contact portion ( 26 ) GE gene the spring force of an on an outer sleeve of the coupling assembly ( 14 ) supported return spring ( 34 ) in the direction of Control unit ( 20 ) is movable. 9. Locking system according to at least one of the preceding claims, characterized in that the coupling assembly ( 14 ), in particular a switching unit ( 22 ) of the coupling assembly ( 14 ), is designed as a centrifugal force unit. 10. Locking system according to claim 9, characterized in that the switching unit ( 22 ) by the control unit ( 20 ), in particular by a motor of the control unit ( 20 ), in rotation ver settable disc ( 36 ) and on the sliding member ( 24th ), in particular a slide ( 28 ) of the sliding member ( 24 ), facing side of the disc ( 36 ) comprises at least one centrifugal element ( 38 ), where in a rotating disc ( 36 ) in the freewheeling state by the centrifugal element ( 38 ) blocked path for the slide ( 28 ), in particular for a mandrel ( 40 ) of the slide ( 28 ) projecting in the direction of the switching unit ( 22 ), is released to the control unit ( 20 ). 11. Locking system according to claim 10, characterized in that two essentially identical, by rotating the disc ( 36 ) relative to the disc ( 36 ) in particular each against the Fe derkraft a return spring ( 39 ) pivotable and with respect to egg ner axis of rotation of the disc ( 36 ) symmetrically arranged centrifugal force elements ( 38 ) are provided. 12. Locking system according to claim 11, characterized in that the centrifugal elements ( 38 ) each in a plane perpendicular to an axis of rotation of the disc ( 36 ) have an at least approximately semicircular cross-section, the pivot axes of the centrifugal elements ( 38 ) symmetrical with respect to the axis of rotation of the disc ( 36 ) and each run through a corner area of the centrifugal force elements ( 38 ). 13. Locking system according to claim 12, characterized in that the two centrifugal elements ( 38 ) complement one another in the freewheeling state to an at least approximately circular, with respect to the disk ( 36 ) approximately concentric locking disk and in the driving state by a parallel to the two straight Be th of the centrifugal elements ( 38 ) extending gap for the slide ( 28 ), in particular for a mandrel ( 40 ) of the slide ( 28 ) are separated from each other. 14. Locking system according to at least one of claims 4 to 13, characterized in that by the key actuation an electrically conductive connec tion between the sliding member ( 24 ) and the control unit ( 20 ) via the switching unit ( 22 ), in particular via a mandrel ( 40 ) a slide ( 28 ) of the sliding element ( 24 ), at least one centrifugal element ( 38 ) and a shaft ( 22 ) coupled to the switching unit and / or a housing of a motor of the control unit ( 20 ) can be produced. 15. Locking system according to at least one of the preceding claims, characterized in that the control unit ( 20 ) is accommodated in a housing ( 50 ), in particular a rotary knob ( 68 ), which is preferably connected in a rotationally fixed manner to the closing element ( 12 ). 16. Locking system according to at least one of the preceding claims, characterized in that it is designed for operation with batteries and / or rechargeable batteries, preferably at least one battery and / or battery unit in the control unit ( 20 ) integrable or in a housing ( 50 ) of the control unit ( 20 ) can be brought under. 17. Locking system according to at least one of the preceding claims, characterized in that the key ( 16 ) comprises a key part ( 60 ) having a handle part ( 78 ) and a shaft part ( 84 ), the communication unit ( 18 ) on the handle part ( 78 ) is attached, and preferably, the handle part ( 78 ) and the communication unit ( 18 ) are extrusion-coated with plastic. 18. Locking system according to at least one of the preceding claims, characterized in that the communication unit ( 18 ) is a key-specific communication element, which is arranged in particular as a transponder unit ( 52 ) and is preferably integrated into the electronic assembly of the electronic assembly of the key ( 16 ), and a lock-specific communication element ( 54 ) assigned to an electronics module of the control unit ( 20 ). 19. Locking system according to claim 18, characterized in that the communication members are designed to communicate with one another via electromagnetic waves and preferably each comprise at least one induction coil ( 54 ). 20. Locking system according to claim 18 or 19, characterized in that a transponder unit ( 52 ) of the key ( 16 ) extends at least in regions through the induction coil ( 54 ) of the control unit ( 20 ), preferably the induction coil ( 54 ) directly on the Transponder unit ( 52 ) is wound. 21. Locking system according to at least one of claims 18 to 20, characterized in that the information exchangeable between the electronic assemblies of the key ( 16 ) and the control unit ( 20 ) via the communication members ( 54 ) is at least one element in a memory of the electronic assembly of the key ( 16 ) include stored key-specific code, the electronic assembly of the control unit ( 20 ) being designed to compare the key-specific code with at least one lock-specific code stored in a memory element and, if the codes match, for switching on a motor to adjust the coupling assembly ( 14 ) is. 22. Locking system according to at least one of claims 18 to 21, characterized in that a particularly as a strip-shaped circuit board ( 56 ) ausgebil Dete supply line of the lock-specific communication element ( 54 ) is guided along a shaft part ( 84 ) of the key ( 16 ), one over the front free end of the shaft part ( 84 ) protruding contact tip ( 58 ) and from a key body ( 60 ) in particular by means of a strip-shaped mica plate ( 62 ) is electrically isolated. 23. Locking system according to at least one of the preceding claims, characterized in that the key ( 16 ) is designed as a charging element for quickly chargeable capacitors, in particular of the golden caps type, of the control unit ( 20 ). 24. Locking system according to at least one of the preceding claims, characterized in that the cylinder member ( 10 ) is designed as a lock adapter, instead of a lock cylinder, in particular a standardized profile cylinder, with the lock. 25. Locking system according to at least one of the preceding claims, characterized in that the coupling assembly ( 14 ), in particular a key-side end section of an outer sleeve and with a key channel ( 65 ) for the key ( 16 ) provided with an inner cylinder ( 64 ) of the coupling assembly ( 14 ), with a coding in particular in the form of a pin tumbler, which only rotates the coupling assembly ( 14 ) in the cylinder member ( 10 ) when the key ( 16 ) is inserted and pulling out the key ( 16 ) only in a predetermined angular position the coupling assembly ( 14 ) allowed. 26. Locking system according to at least one of the preceding claims, characterized in that the control unit ( 20 ), in particular a non-rotatably connected to the locking element ( 12 ) connected hollow shaft section ( 66 ) of a housing ( 50 ) of the control unit ( 20 ), in one of the angular positions the coupling assembly ( 14 ) for removing the key ( 16 ) corresponding angular position with the cylinder member ( 10 ) is locked bar. 27. Key for a locking system, characterized by the features relating to the key ( 16 ) of at least one of claims 1 to 26. 28. Coupling assembly for a locking system, characterized by the features relating to the coupling assembly ( 14 ) at least in at least one of claims 1 to 26. 29. sliding element for a locking system, characterized by the features relating to the sliding element ( 24 ) of at least one of claims 1 to 26. 30. Switching unit for a locking system, characterized by the features related to the switching unit ( 22 ) of at least one of claims 1 to 26.