EP0995864A2 - Electro-mechanical lock 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 Code can be transmitted to the lock. In the case of a suitable key switches the lock to a state that requires actuation of the lock mechanism allows to open the door.

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

DE 196 03 320 A1 describes an electronically programmable locking system known 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 can be inserted into an inner cylinder assigned to the outside of the door. 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 an electronic assembly and a motor housed. The Motor operates one located between the inner cylinder and the motor 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 communication between the key and the lock cylinder takes place over two induction coils, one of which is on the outer circumference of the key handle led along and the other on the key facing Front side of the lock cylinder is arranged. About one by introducing of the key in the inner cylinder actuated button that in the area the induction coil is arranged, the electronic assembly 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 and the induction coil is connected to the electronic assembly are to bypass the mechanical coupling group by a Cable duct running on the lower long side of the locking cylinder passed through.

It is the problem (object) on which the invention is based To create a locking system for doors that is as compact as possible easy to use 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 for non-rotatable Coupling with the closing element from a freewheeling state into one Driving state is adjustable, via the coupling assembly non-rotatable key that can be coupled to the locking element and an electromechanical one Control unit provided for adjusting the coupling assembly are, the control unit on one side of the closing element is arranged and the coupling assembly from 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 operating the coupling assembly 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 non-rotatable coupling of the key with the locking element, but 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 control unit connected. The face of the cylinder member facing the key can due to the direct connection between the control unit and the key with fittings of any thickness and material properties be provided, the transmission of electromagnetic Can make 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 The control unit then introduces the key into the cylinder member switched on and at the same time the exchange of, for example, a Access code containing information between the control unit and the key.

On the provision of a separate communication body, e.g. B. an induction coil, and a switching device, for example in the form of a Button in the key end of the cylinder member as well as in cable ducts 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 coupling assembly is in particular a sliding element of the coupling assembly, by operating the key in the direction of a take-away position preloadable.

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

According to a further preferred embodiment of the invention the communication unit comprises a key-specific communication organ, in an electronic module designed as a transponder unit of the key is integrated, and one of an electronic assembly lock-specific communication element assigned to the control unit, 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 Components of the locking system, which in particular 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 extends a transponder unit of the key, at least in some areas through the induction coil of the control unit, preferably the induction coil is wound directly onto the transponder unit.

This allows a compact communication unit on the key be realized due to the small distance between the induction coil the control unit and an induction coil of the transponder unit 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 in particular in the hotel area or other building complexes with locking systems is an advantage.

The non-rotatable connection of a knob, in which according to the already preferred embodiment of the invention mentioned above the control unit is housed with the closing element locking and unlocking the door from the inside at any time. Alternatively, the knob can also be from the closing element be decoupled to the use of the locking system according to the invention - While maintaining the available in a rotary knob Space - in conjunction with panic locks to allow at 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, a Switching unit of the coupling assembly, which is used to adjust the coupling assembly from the freewheeling state to the entrainment state by one Motor of the control unit is adjustable, designed as a centrifugal force unit, the one that can be set in rotation by a motor of the control unit Disc and on a slide of the sliding element facing Side of the disc comprises at least one centrifugal element, while rotating Washer locked in the freewheeling state by the centrifugal element 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 Individual parts requiring and having a compact structure and yet reliable working arrangement for adjusting the coupling assembly created.

Further preferred embodiments of the invention, in particular advantageous ones Refinements 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 specified in the subclaims, the description and the drawing.

Fig. 1

eine geschnittene Seitenansicht eines Schließsystems gemäß einer Ausführungsform der Erfindung,

Fig. 2

einen vergrößerten Ausschnitt von Fig. 1, und

Fig. 3a und 3b

eine als Fliehkrafteinheit ausgebildete Schalteinheit eines erfindungsgemäßen Schließsystems in zwei unterschiedlichen Betriebszuständen.

The invention is described below by way of example with reference to the drawing. Show it:

Fig. 1

2 shows a sectional side view of a locking system according to an embodiment of the invention,

Fig. 2

an enlarged section of Fig. 1, and

3a and 3b

a switching unit designed as a centrifugal force unit of a locking system according to the invention in two different operating states.

1 comprises a cylinder member 10, which acts as a cylinder adapter, d. H. as a replacement for a standardized profile cylinder is trained and thus with conventional mortise locks for doors is usable. In the cylinder member 10 is a closing element 12 around a Axis of rotation 98 is rotatably supported, the one lock bit 72 for loading has a locking mechanism of the lock. Furthermore is the cylinder member 10 with a bore 74 for a faceplate screw rotationally fixed fixing of the cylinder member 10 in the lock.

The cylinder member 10 is approximately symmetrical, i. H. the closing element 12 is approximately the same in a recess 17 between two Axial length sections of the cylinder member 10 arranged. The cylinder member 10 can, depending on the particular circumstances, in particular the dimensions of the door leaf, but also asymmetrical be executed. For example, that of an outside of the door assigned section of the cylinder member 10 relative to the other section be shortened.

The locking system further comprises a key 16, the Key body 60 comprises a handle part 78 and a shaft part 84. The Handle part 78, which is a communication unit explained in more detail elsewhere 18 carries, is with the handle part 78 and the communication unit 18 surrounding encapsulation 80 provided from plastic. In the overmolding 80, a recess 82 is provided which, for. B. an attachment the key 16 allowed on a key fob.

By stop shoulders 79 of the key body 60 is the maximum Penetration depth of the shaft part 84 in the cylinder member 10 set.

The communication unit 18 comprises a transponder unit 52 and an induction coil 54 wound on the transponder unit 52, the one end to the grip part 78 of the key body 60 and the other End is soldered to a circuit board 56. The circuit board 56 is in a channel-like Recess of the key body 60 glued over the dated Handle part 78 protrudes the front end of the shaft part 84 and forms a contact tip 58. The transponder unit 52 is from the rear, fork-like shaped end of the circuit board 56 received and by Pouring into an electrically insulating material (not shown) firmly with the Printed circuit board 56 and the key body 60. Between Key body 60 and the circuit board 56 is glued to a mica plate 62, which extends along the channel-like recess of the key body 60 extends and the circuit board 56 opposite the key body 60 electrically isolated. Breakthroughs 76 enable an intimate, positive fit 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 around the circuit board 56 to protect against external influences.

In the section of the cylinder member which is preferably assigned to an inside of the door 10, a hollow shaft section 66 of a rotary knob 68 is inserted, which is integrally connected 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 to the housing 50 or lockable. By means of spring-loaded, in cross bores 11 of the cylinder member 10 seated pins (not shown) which are in ring recesses 67 of the hollow shaft section 66 engage, the rotary knob 68 is opposite the cylinder member 10 rotatable, but axially immovable in the cylinder member 10 held. A single pen is sufficient for this.

The rotary knob 68 is non-rotatably connected to the via two spacers 48a, 48b Closing element 12 coupled. The coupling of these components to one another takes place in each case via end extensions and complementary end extensions Cutouts or incisions, each a positive Allow connection between two axially adjacent components. For example each component can be diametrically opposed Projections or recesses or incisions.

To adapt to different door leaf dimensions, the different Cylinder organs can in principle be any Number of spacers between the hollow shaft section 66 of the Knob 68 and the closing element 12 are arranged. Also one direct rotationally fixed coupling between the hollow shaft section 66 and the closing element 12 without spacers is possible in principle, wherein then, however, a recess 46 explained in more detail elsewhere, the is formed in the spacer 48a, provided in the hollow shaft section 66 should be.

To enable the use of the locking system with panic locks, can - for example, by omitting the end extensions or recesses or incisions on the hollow shaft section 66 or one of the spacers 48a, 48b - for a decoupling between the Knob 68 and the closing element 12 are taken care of so that the Knob 68 is freely rotatable in the cylinder member 10.

In the knob 68 is a not shown and only by the reference number 20 represented control unit, the purpose of which is different Position is described.

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

The coupling assembly 14 comprises a multi-part outer sleeve which by axially one behind the other, at least approximately sleeve-shaped and elements are connected to one another in a rotationally fixed manner, namely by an inner cylinder 64, a connector 94 and a Receiving piece 96 of a sliding element 24. The rotationally fixed coupling in each case two axially adjacent elements - as in connection above with the closing element 12, the spacers 48a, 48b and the hollow shaft section 66 - by the engagement between end extensions and recesses or incisions of the elements.

The inner cylinder 64 has a key channel 65 for the key 16 and is in the region of its end facing the closing element 12 provided with an annular recess 63 on its circumference. In the ring recess 63 engages a spring-loaded pin, not shown, which in one of four key-side transverse bores 13 of the cylinder member 10 sits, and on the one hand the inner cylinder 64 in the cylinder member 10 holds axially immobile and secondly in the manner of a sliding contact regardless of the angular position of the inner cylinder 64 for one good electrical contact between the inner cylinder 64 and the cylinder member 10 cares.

The other three cross bores 13 of the cylinder member 10 are used for Inclusion of pin springs together with in holes 15 of the inner cylinder 64 seated inner pins and between the pin springs and the outer pins arranged outside represent a coding that in the manner of a pin tumbler conventional locking cylinder with in Shank part 84 of the key 16 formed cuts 85 cooperates. This ensures that the inner cylinder 64 is only complete inserted, designed according to the coding Key 16 can be rotated in the cylinder member 10. Furthermore is thereby ensuring that the key 16 only in a single angular position of the inner cylinder 64 can be deducted in which the Bores 15 are aligned with the transverse bores 13 and in which preferably the locking bit 72 of the closing element 12 is close its deepest, in alignment with that provided with the transverse bores 11, 13 Section of the cylinder member 10 lying angular position.

The hollow shaft section 50 of the rotary knob housing 50 can be modified in this way be that it has cutouts or incisions accordingly the bores 15 or incisions 85 of the inner cylinder 64 or the key shaft portion 84 is provided with spring-loaded Pins interact, which in the rest, not for axial holding of the rotary knob housing 50 in the cylinder member 10 serving rotary knob soaps Cross bores 11 of the cylinder member 10 sit. Through such a Arrangement similar to a pin tumbler can be used for this be ensured that the hollow shaft portion 50 in a certain The angular position engages, which corresponds to the angular position of the inner cylinder 64 is adapted to remove the key 16 such that the coupling assembly 14 adjusted from the driving position to the freewheeling position can be without the risk of jamming of components consists. This will be discussed again later.

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

In addition, the locking system includes those mentioned above Outer sleeve axially displaceable elements, namely one essentially disc-shaped contact section 26 and also substantially disc-shaped slider 28, which together with the receiving piece 96 and other components explained in connection with FIG. 2 Form sliding member 24. To adapt to different axial lengths having cylinder organs 10 can be key-side in the outer sleeve a corresponding number of separate, in principle according to the Contact section 26 trained spacers can be arranged.

Furthermore, there is between an end face facing the rotary knob 68 of the receiving piece 96 and the control unit 20 in the hollow shaft section 66 a cylindrical switching unit 22 substantially axially immovable arranged, which is designed as a centrifugal force unit and its structure and mode of operation explained in more detail with reference to FIGS. 2, 3a and 3b becomes.

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

The contact section 26 also has an inner contact piece 32, which is put together with a spring receptacle 29 arranged on the rotary knob side is. The contact piece 32 and the spring receptacle 29 are electrically insulated from an outer sleeve 31 by insulating pieces 25.

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

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

In a freewheeling state or a freewheeling position of the sliding element 24 1 and 2, the or the free-running state of the coupling assembly 14 corresponds to a radial extension 43 of the driver 42 in an axial incision, the width of which is that of the radial Extension 43 corresponds to trained recess 44 of the receptacle 96, the driver 42 on a rotary knob side Stop of the receiving piece 96 is present. In this position the thorn protrudes 40 of the slide 28 only a little way into an opening 91 which in a cylindrical end of the receptacle on the rotary knob side 96 facing cap 90 of the switching unit 22 is formed.

In the rotationally fixed via the spacer 48b with the closing element 12 connected spacer closest to knob 68 48a, against which the receiving piece 96 rests, is also an axial one Incision, the width of which the radial extension 43 of the driver 42 corresponds, trained recess 46 is provided. The two Form recesses 44, 46 - at a certain relative angular position between the non-rotatably connected to the coupling assembly 14 Key 16 and the rotationally connected to the locking element 12 Knob 68 - together one extending in the axial direction Slot. The two recesses 44, 46 can - if that Receiving piece 96 and the spacer 48a formed accordingly and Z. B. are nested - also overlap in the axial direction.

When the path for the mandrel 40 is cleared into the switching unit 22 is, which will be discussed in more detail below, the Mandrel 40 and the radial extension 43 in Fig. 1 and Fig. 2 to the left move, provided the certain relative angular position mentioned above is present. The sliding member 24 is then in a state of entrainment or a take-away position, the take-home condition corresponds to the coupling assembly 14, in which the radial extension 43 of the driver 42 at the same time in the recess 44 of the Receiving piece 96 and in the recess 46 of the spacer 48a sits. A rotation of the key 16 thus causes in this position taking the driver 42 over the receiving piece 96 and one Driving the spacer 48a over the radial extension 43 of the Driver 42. In this way, a rotationally fixed coupling of the Key 16 via the coupling assembly 14 with the locking element 12, which allows the lock mechanism by means of the key 16 over to act on the locking bit 72 of the closing 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 Slider 28 and the mandrel 40 of the contact piece 32 are made of stainless steel manufactured.

The switching unit 22 of the coupling assembly partially shown in FIGS. 3a and 3b 14 is designed as a centrifugal force unit and includes one Disc 36, on the side facing the sliding member 24 two opposite the disc 36 is pivotable about axes defined by bearing pins 92 Centrifugal force elements 38 are arranged, of which in FIG. 1 and Fig. 2 shows only one. The centrifugal elements 38 are Castings.

The cap 90 already mentioned forms an open on the rotary knob side Housing for the disk 36 and the centrifugal force elements 38. In addition to the opening 91 also mentioned above are in the Slide member 24 facing side of the cap 90 two diametrically opposite, bores each provided with an internal thread, which are not recognizable in the figures.

In the disk 36 is a channel 88 for the output shaft of a not shown Electric motor of the control unit housed in the knob 68 20 provided. The central axes of channel 88 and opening 91 in the cap 90 coincide with the axis of rotation 98. Using a grub screw 86 through a recess in the cap 90 and a Bore in the disk 36 perpendicular to the axis of rotation 98 in the switching unit 22 can be screwed in, the motor shaft can be fixed and thus non-rotatable be connected to the disk 36.

Between the cap 90 and the inner wall 69 of the hollow shaft section 66 and between the facing areas of the end faces the cap 90 and the receptacle 96 is one in Fig. 2 by the reference numeral 93 represented space through which the Switch unit 22 opposite the hollow shaft section 66 and the receiving piece 96 is electrically insulated. In Fig. 1 and Fig. 2 left of the Switching unit 22 is on the inner wall 69 of the hollow shaft section 66 the housing 50 is provided with a sleeve-shaped insulating piece, not shown, which the motor housing opposite the hollow shaft section 66 electrically isolated.

3a and 3b each show a key-side view of the switching unit 22 with cap 90 removed, FIG. 3a showing a freewheeling state and FIG. 3b shows a state of entrainment of the coupling assembly 14 corresponds.

The centrifugal force elements 38 each have a semicircular cross section with a radius slightly smaller than that of the disk 36 is. The bearing pins 92 each extend through a corner area of the centrifugal force elements 38 and stuck in the disc 36 formed Blind holes. As can be seen from Fig. 3a, the centrifugal force elements 38 arranged such that their straight sides in the same, which by the Channel 88 of the disk 36 extending axis of rotation 98 containing plane lie. The centrifugal force elements 38 are shifted against one another in such a way that that they each with the closer to their bearing pin 92 Complete the corner area with the edge of the pane 36 and a locking washer form.

The centrifugal force elements 38 are each by a two-armed, as a return spring 39 serving coil spring in its corresponding to the freewheeling state 3a freewheeled position, the bearing pins 92 in each case by the turn or turns of the return springs 39 extend. The return springs 39 each lie completely with one arm and with the other, at the free end arched arm in some areas in an incision running parallel to the plane of the disk 36 of the centrifugal element 38. The straight-running one is supported Arm of the return springs 39 each in the area of its free end that in Fig. 3a and Fig. 3b partially schematically by a dash-dotted line Line indicated boundary wall of the incision. The other Arm of the return springs 39 is supported on a disc 36 and the Centrifugal force elements 38 surrounding, indicated by a dashed circle Wall off.

In the locking system according to Fig. 1 and Fig. 2, the wall against which support the return springs 39, not shown in FIGS. 1 and 2, formed by the inner wall of the cap 90, the free inner diameter the cap 90 corresponds to the diameter of the disk 36.

To illustrate the principle of the centrifugal force unit Switching unit 22, however, has the dashed circle in FIGS. 3a and 3b a larger diameter than the disk 36. This means that in Fig. 3b, in which the centrifugal force elements 38 are each in their state of entrainment corresponding driving position are shown, which they rotating Take up disk 36, clearly recognizing that the return springs 39 are compressed. Between those running parallel to each other 3b, there is a gap on the straight sides of the centrifugal force elements 38, over which the previously closed by the centrifugal force elements 38 Way inside the switching unit 22, i. H. towards the Disk 36 is accessible.

The centrifugal unit is characterized in that regardless of free inner diameter of the wall on which the return springs 39 support, d. H. regardless of how far the centrifugal elements 38 at rotating disc 36 against the spring force of the return springs 39 radially can be pivoted outwards, the straight sides of the centrifugal force elements 38 always run parallel to each other, the width of the Gap between the straight sides of the free inner diameter the support wall is dependent.

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

In principle, the electronic modules of the control unit 20 and the transponder unit 52 with regard to its structure, its characteristics and especially the exchange of information that can be carried out with them corresponding to those in the German published application Components or assemblies described in DE 196 03 320 A1 his.

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

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

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 Slider 28, the mandrel 40 and the switching unit 22, the mandrel 40 on whose centrifugal force elements 38 contacted.

In this state, the coupling assembly 14 is still in its Freewheeling state, however, both the coupling spring 30 and the return spring 34 are compressed. The slider 28 is consequently biased towards his take-away position, in which he is due to the blocked by the centrifugal elements 38 path into the interior of the Switching unit 22 cannot be adjusted into it yet.

However, there is an electrically conductive connection between the mandrel 40 and the output shaft of the electric motor fixed in the channel 88 of the disk 36 of the control unit 20. The output shaft of the electric motor is on the one pole of a voltage source which is also accommodated in the rotary knob 68 in the form of batteries or rechargeable batteries connected. 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 Knob 68 and thus the hollow shaft section 66, the cylinder member 10, the one to form a sliding contact in the one transverse bore 13 seated and engaging in the ring recess 63 of the inner cylinder 64 Pin, inner cylinder 64 and key body 60.

Consequently, the moment the mandrel 40 becomes the centrifugal elements 38 touches, the control unit 20 activated. This makes the procedure Exchange of information, for example in storage elements each of the electronics module of the control unit 20 and the transponder unit 52 stored access or authorization codes, started, whereupon it is checked whether the key 16 is a suitable one Key for the locking system. If not the procedure is terminated and the control unit 20 is switched off, so that the lock cannot be operated because of the coupling assembly 14 remains in its freewheeling state.

However, if the key 16 has an appropriate code, causes the control unit 20 that the electric motor is turned on, the Output shaft then rotated the disk 36. Hereby the centrifugal elements 38 are each against the spring force of the return springs 39 pressed radially outwards against the inner wall of the cap 90. Consequently, the mandrel 40 can pass through the gap between the centrifugal force elements 38 pass through, provided that the recesses 44 and 46 the aforementioned slot for the radial extension 43 of the driver 42 form.

This is the case when the rotary knob 68 is in the on the coupling assembly 14 coordinated angular position can be locked or on others Orientation of the recesses 44 and 46 is provided. Otherwise is by attempting to twist the coupling assembly 14 to produce that relative angular position by means of the key 16, in which snap the radial extension 43 into the recess 46, d. H. the slide 28 as a whole move to the left in FIGS. 1 and 2 can.

Now the driving state of the coupling assembly 14 is established, so that by means of the key 16 the closing element 12 for loading of the lock can be turned.

The procedure for checking the key 16, activating the electric motor and adjusting the coupling assembly 14 takes only one Fraction of a second z. B. in the order of 100 ms. This period of time is practically not perceived by the user, d. H. a suitable key 16 can be inserted into the inner cylinder in one go 64 inserted and rotated to lock or lock Unlock the door to act on. There is preferably a the procedure controlling microprocessor of the control unit 20 in one standby mode uncritical in terms of energy consumption, whereby the start-up of the control unit 20 after the circuit has been closed accelerates and the time elapsing before the engine is switched on is shortened.

The electronics module of the control unit 20 is designed such that the control unit 20 and the electric motor after a certain period of time, to move the radial extension 43 of the driver 42 is sufficient in the recess 46 of the spacer 48a, automatically be deactivated to protect the battery or accumulator unit. The return springs 39 pull the centrifugal elements 38 back into 3a, but with the mandrel 40th prevents the centrifugal force elements 38 from completely returning to the Combine the lock washer as shown in Fig. 3a.

The coupling assembly 14 thus remains after the automatic Switching off the control unit 20 in its entrainment state, so that the closing element 12 can be rotated as long as the key 16 in Inner cylinder 64 is inserted and applied to the contact section 26, the thereby moving the slider 28 to the left in FIG. 1 via the coupling spring 30 and Fig. 2 presses 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 now acts as a tension spring Coupling spring 30 takes the slider 28, causing the sliding member 24 and thus the coupling assembly 14 again in their free-running state arrive and the centrifugal force elements 38 each finally 3a freewheeling position.

When the housing 50 of the knob 68 is in an angular position with the Cylinder member 10 is designed to be latched, which of the angular position corresponds to the coupling assembly 14, in which a removal of the Key 16 is possible, and in which the recess 46 of the spacer 48a with the recess 44 of the receiving piece 96 for formation of the slot is aligned, the radial extension 43 of the driver 42 due to the then defined relative angular position between the spacer 48a and the receptacle 96 in the recess 44 of the receiving piece 96 spring back without the risk of Jamming exists.

To realize an emergency operation that a certain number of Switching operations even after the battery or accumulator unit is completely empty the control unit 20 or in the event of a failure enables, the control unit 20 with special capacitors, for example be of the golden caps type. Such capacitors, which can be recharged in the shortest possible time discharge themselves comparatively quickly. However, the stored energy is sufficient for implementation several information exchange and adjustment processes.

For such an emergency operation, a key can be used as a special loading key trained and z. B. be provided with a 6V battery with which the capacitors by inserting the charging key into the Inner cylinder 64 and closing the circuit can be charged can. Following the loading process, the locking system is with the help the energy stored in the capacitors is too large about ten shifts capable of bridging the downtime of the battery or accumulator unit is sufficient.

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

48a, 48b

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 (12)

Electromechanical locking system for doors with a locking element (12) rotatably mounted for a lock in a cylinder member (10), in particular a replacement piece for a standardized profile cylinder, for loading the lock, a coupling assembly (14) rotatably mounted in the cylinder member (10), which 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) and 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 an electrical circuit can be closed by actuating the coupling assembly (14), in which an electrically conductive connection is established via the coupling assembly (14) between the communication unit (18) and the control unit (20). Locking system according to claim 1,
characterized by that the control unit (20), in particular a motor of the control unit (20) coupled to the coupling assembly (14), for adjusting the coupling assembly (14), in particular a switching unit (22) of the coupling assembly (14), can be activated by closing the circuit, and or 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. Locking system according to claim 1 or 2,
characterized by that the coupling assembly (14) comprises an outer sleeve which is immobile in the axial direction in the cylinder member (10), in particular a multi-part outer sleeve, and a sliding member (24) which can be axially displaced in the outer sleeve,
The sliding member (24) in particular has a contact section (26) which can be actuated by the key actuation and a slide (28) which interacts with a switching unit (22) and which can be displaced between a freewheeling position and a driving position and which is coupled to the contact section (26) via a coupling spring (30) ) includes, and / or 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) driver (42) which is used for the rotationally fixed coupling of the coupling assembly (14) to the closing element ( 12) in the driving position at the same time in a recess (44) of the outer sleeve and in a recess (46) of the closing element (12), in particular a non-rotatably connected to the closing element (12) and preferably on the side of the closing element facing the control unit (20) (12) arranged spacer (48a) protrudes, and / or that the contact section (26) and the slide (28) each have a contact piece (32) which is electrically insulated from the outer sleeve, the contact pieces (32) being electrically conductively connected to one another by the coupling spring (30) and, together with the coupling spring (30), a component of the electrical circuit, and / or that the slide (28) together with the contact section (26) can be moved in the direction of the control unit (20) against the spring force of a return spring (34) supported on an outer sleeve of the coupling assembly (14). Locking system according to at least one of the preceding claims,
characterized by that the coupling assembly (14), in particular a switching unit (22) of the coupling assembly (14), is designed as a centrifugal force unit,
The switching unit (22) in particular has a disc (36) which can be set in rotation by the control unit (20), in particular by a motor of the control unit (20), and on which the sliding element (24), in particular a slide (28) of the sliding element ( 24), facing side of the disk (36) comprises at least one centrifugal force element (38), with a rotating disk (36) blocking a path for the slide (28) in the freewheeling state by the centrifugal force element (38), in particular for one in the direction of the switching unit (22) projecting mandrel (40) of the slide (28) to the control unit (20) is released,
In particular, two centrifugal elements (38) which are essentially identical in construction and are pivotable relative to the spring force of a return spring (39) and are arranged symmetrically with respect to an axis of rotation of the disk (36) by rotating the disk (36) relative to the disk (36) are provided,
wherein, in particular, the centrifugal force elements (38) each have an at least approximately semicircular cross section in a plane perpendicular to an axis of rotation of the disk (36), the pivot axes of the centrifugal force elements (38) symmetrical with respect to the axis of rotation of the disk (36) and each through a corner region of the Centrifugal force elements (38) run,
In particular, the two centrifugal force elements (38) complement one another in the freewheeling state to form an at least approximately circular locking disc which is approximately concentric with respect to the disc (36), and in the entrainment state by a gap for the slide (28) running parallel to the two straight sides of the centrifugal force elements (38) ), in particular for a mandrel (40) of the slide (28). Locking system according to claim 3 or 4,
characterized by that by actuating the key, an electrically conductive connection between the sliding element (24) and the control unit (20) via the switching unit (22), in particular via a mandrel (40) of a slide (28) of the sliding element (24), at least one centrifugal force element (38 ) and a shaft coupled to the switching unit (22) and / or a housing of a motor of the control unit (20) can be produced. Locking system according to at least one of the preceding claims,
characterized by that the control unit (20) is accommodated in a housing (50), in particular a rotary knob (68), which is preferably connected to the closing element (12) in a rotationally fixed manner, and / or that it is designed for operation with batteries and / or rechargeable accumulators, preferably at least one battery and / or accumulator unit being integrable into the control unit (20) or being able to be accommodated in a housing (50) of the control unit (20), and / or that the key (16) comprises a key body (60) having a handle part (78) and a shaft part (84), the communication unit (18) being attached to the handle part (78), and preferably the handle part (78) and the communication unit (18) are encapsulated with plastic. Locking system according to at least one of the preceding claims,
characterized by that the communication unit (18) comprises a key-specific communication element, which is assigned to an electronic module of the key (16) and is preferably integrated into the electronic module, and a lock-specific communication element (54) assigned to an electronic module of the control unit (20) ,
wherein in particular the communication members are designed to communicate with one another via electromagnetic waves and preferably each comprise at least one induction coil (54), and / or that a transponder unit (52) of the key (16) extends at least in some areas through the induction coil (54) of the control unit (20), the induction coil (54) preferably being wound directly onto the transponder unit (52), and / or that the information exchangeable between the electronic assemblies of the key (16) and the control unit (20) via the communication members (54) includes at least one key-specific code stored in a memory element of the electronic assembly of the key (16), the electronic assembly of the control unit (20) for Comparison of 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), and / or that a supply line of the lock-specific communication element (54), which is designed in particular as a strip-shaped printed circuit board (56), is guided along a shaft part (84) of the key (16), comprises a contact tip (58) projecting beyond the front free end of the shaft part (84) and from a key body (60) is electrically isolated, in particular by means of a strip-shaped mica plate (62). Locking system according to at least one of the preceding claims,
characterized by 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), and / or that the cylinder member (10) is designed as a cylinder adapter that can be used with the lock instead of a lock cylinder, in particular a standardized profile cylinder, and / or that the coupling assembly (14), in particular an inner cylinder (64) of the coupling assembly (14), which forms the key-side end section of an outer sleeve and is provided with a key channel (65) for the key (16), is provided with a coding, in particular in the form of a pin tumbler, which allows the coupling assembly (14) to be rotated in the cylinder member (10) only when the key (16) is inserted and the key (16) is only removed in a predetermined angular position of the coupling assembly (14), and / or that the control unit (20), in particular a hollow shaft section (66) of a housing (50) of the control unit (20) connected in a rotationally fixed manner to the closing element (12), in an angular position corresponding to the angular position of the coupling assembly (14) for removing the key (16) can be locked with the cylinder member (10). Key for a locking system,
characterized by the features relating to the key (16) of at least one of claims 1 to 8. Coupling assembly for a locking system,
characterized by the features relating to the coupling assembly (14) of at least one of claims 1 to 8. Sliding element for a locking system,
characterized by the features relating to the sliding member (24) of at least one of claims 1 to 8. Switching unit for a locking system,
characterized by the features relating to the switching unit (22) of at least one of claims 1 to 8.

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