DE3500353A1 - MECHANICAL AND NON-MECHANICALLY CODED KEY AND LOCK TO BE OPERATED BY IT - Google Patents

Abstract

1. Flat key (4) provided with mechanical and non-mechanical coding located in its handle (4") as well as the lock actuatable by it, which contains a cylinder lock (1) comprising corresponding mechanical tumblers as well as an electronic storage and control system provided with a decoder and read-out device and energy supply, which is arranged to be brought into contact-less energy and data transfer via a detector (3) located at the side of the lock with a counter-detector (7) present on the key (4) and connected with the non mechanical coding thereof, characterised in that the detector (3) is located at the face (1") of the cylinder lock (1) and the counter-detector (7) is located in the face (4**IV ) of the key handle (4") facing the cylinder lock (1).

Description

DR. ING. DIPLrPHYS. H: SHTURIES

PATENTANWÄLTE _ _._... '' Q ς η η q R

DIPL-INQ. P. EICHLER OO UU JOO

56 WUPPERTAL 2. BRAHMSSTRASSE 29

BKS GmbH, Heidestr. 71, 5620 Velbert 1 sssssesssssisisstsississsiswssszssxssisisicssassiiss:

Mechanically and non-mechanically coded key as well as the lock to be operated by it.

The invention relates to one with a mechanical and one housed in its bow, non-mechanical coding provided flat key as well as a lock to be operated by it, the locking cylinder having a corresponding mechanical tumblers and a decoding or electronic storage and control system provided with a reading device and power supply contains, which has a lock-side detector with an existing on the key, with the counter-detector connected to non-mechanical coding is to be brought into contact-free energy and data transmission.

_BATH

Λ-

With such both mechanical and non-mechanical coded flat keys can be used both conventionally with corresponding mechanical tumblers equipped locking cylinders as well as with a corresponding electronic storage and control system provided cylinder locks are operated, with the non-mechanical coding in the flat key can serve as a personal and additional security code, which the existing blektronic system in the lock tries to recognize and if it matches the corresponding codes stored in it, the Releases the lock bolt to operate the key, otherwise blocks it or uncouples it from the cylinder core leaves. This increases the lock security significantly, especially in the event of loss or theft of the personally coded key, the corresponding code in the lock's electronic system has been slightly changed can be. Such a key and lock electronics also allow the lock or latch to be actuated only to be released or to be released at certain preceding times and / or for different periods of time To block. It is also essential that the energy and data transmission via the detector and counter-detector done without contact, eliminating the problems otherwise associated with transmission contacts, such as in particular their soiling and deformation can be avoided.

With known mechanically and non-mechanically coded keys and thereby to be operated Locks of the above type, e.g. according to the magazine "Baubeschlag Magazin 11/84, p. 192", is the one with a microprocessor module housed in its bow connected counter-detector in the back of the key

ORIGINAL

housed, the iazu a correspondingly long, extending approximately over half of its shaft Has recess. This causes a considerable weakening of the key shaft, on top of that in its area, which is already endangered by the key incision notches. In addition there is the through the electrical connection between the counter-detector and the module housed in the Reide caused weakening In addition, this counter-detector arrangement requires a corresponding arrangement of the detector in the cylinder lock, which is in a special, protruding one Fitting part must be accommodated, so no standard door fitting. ! ■ Disadvantageous is also that the counter-detector housed in the back of the key through the tumbler pins exposed to mechanical stress in the lock cylinder is.

The invention is therefore based on the object of providing a flat key and a key to be actuated thereby To create a lock of the type mentioned at the beginning, which, while maintaining its mechanical and non-mechanical coding advantages, addresses the aforementioned shortcomings do not have, rather a much cheaper one, in particular structurally undeveloped and crowded have an education. This object is achieved according to the invention in that the detector is on the end face of the lock cylinder and the counter-detector in the face of the lock cylinder facing the Key bowels are housed. In this way, they are used for contact-free energy and data transmission ensuring exposed transmission elements from Tiechanischen damage by the locking cylinder tumbler pins preserved. They also require

- '~ «8AD OFWGlNAt

neither weakening of the flat key nor additional structural or special fittings on the
Lock side. Since they are only spatially separated from one another by the correspondingly narrow air gap, an effective and energy-saving transfer of energy and data between detector and counter-detector is guaranteed.

The invention can be used with particular advantage in profile cylinders which, in a known manner, have a cylinder core end face which protrudes beyond the end face of their cylinder housing and against which the inserted flat key rests with a sine plug stop present on its shaft. In this case, the detector is expediently accommodated in a projection arranged on the end face of the profile cylinder housing, which protrudes at least as far as the cylinder core over the cylinder housing end face. As a result, the face in the key bow that houses the counter-detector can be kept completely smooth,
whereby the plug-in stop protruding only slightly from this, depending on the lock cylinder side
existing detector projection ensures the contact-free distance to the counter detector.

For the transmission of energy and data between the lock and the flat key, it is advantageous if the detector and the counter-detector transmit and receive parts of two electrical high-frequency oscillating circuits that are matched to one another in the key
and lock are. When approaching the counter-detector on the suitably coded flat key
it comes to the detector of the lock resonant circuit

BATH OFUGINAL

In the oscillating circuit of the flat key to a corresponding & nreaung and thus luneraiezuf uhr, which is necessary for the data transfer or the data comparison between the key and the lock electronics. By inserting the flat key into the lock cylinder, the lock electronics are activated, i.e. put into the operating state, whereby the lock's own oscillating circuit supplies the key electronics, the microprocessor and data memory with energy via the Sehwincrkreis in the key and enables the data transfer via the two oscillating circuits .

It goes without saying, however, that instead of the high-frequency oscillating circuits other energy and data transmission methods are also possible, for example via optical means, such as photodiodes and transistors, lasers or laser diodes in selected spectral ranges and the like, the data transmission being carried out via optical fibers. Even acoustic energy and data transmission via ultrasonic transmitters and receivers as well as inductive ones Transmission e.g. by means of magnetic fields and Wiegand sensors are possible, as well as the use of microwave transmitters and receivers. There Only very little energy is required for data transmission, this could in principle even in the flat key can be generated themselves, for example by manual pressure on a built-in piezo crystal or on the key bow containing a plunger coil.

In the above context, it should be noted that that under detector and counter-detector here basically all for the transfer of energies and data

suitable transmitting and receiving or antenna pairs are understood, with the energy transmitter generally im Castle and the energy receiver in the key bow should be housed.

In the drawing, sin embodiment of the invention is shown. In it shows

Fig. 1 shows a profile cylinder lock in part Side view with inserted flat key,

FIG. 2 the front view belonging to FIG. 1 in the direction of the arrow A,

Fig. 3 shows the flat key with longitudinally sung bow and

4 shows an end view in the direction of arrow A of the profile cylinder.

The one shown in Fig. 1 only partially in side view Profile cylinder 1 is in a not shown in detail Door lock installed, the one with a decoding or reading device and energy supply provided electronic storage and control system of known type, which via line 2 with the the front side housed in a projection detector 3 is connected. The profile cylinder 1 is conventional Way provided with pin tumblers, not shown, which are controlled by the flat key 4 existing key incision notches 5 can be classified. With these pin tumblers the 1 · rotatably mounted in the lock cylinder housing Cylinder core 6 normally blocked, but if the tumbler pins are correctly classified by the Notches 5 of the inserted flat key 4

BAD ORfGINAL

3B00353

for its rotary movement and thus the actuation of the Not shown. Lock bolt released. By the built-in storage and control electronics in the lock can be prevented, even if applicable mechanical coding of the flat key 4, so with matching key incisions 5 of the Lock bolt can already be operated. Rather, there is also an agreement of the non-mechanical or electronic coding necessary.

The flat key 4 shown in Fig. 3 is in its shank 4 'except with the key strings 5 also provided with a corresponding longitudinal profile, with which he in the correspondingly longitudinally profiled Key channel 6 ·· in the cylinder core 6 of the profile cylinder can be inserted. In the key bow 4 · ', which expediently consists of a correspondingly shaped small Plastic bag is made, which are the personnel and security coding z. B. in the form of a microprocessor, Data storage and short-term energy storage device equipped module 8 containing electronic components and the associated counter detector 7 housed. The z. B. the part of a corresponding High-frequency visual vibration receivers and transmitters Counter detector 7 closes flush with the

IV
surface 4 of the key bow 4 ^tf . The insert stop 4 '"present on the shaft of the key 4

IV protrudes a short distance over this end face 4 and thus determines the air gap between the counter detector 7 and the detector 3 when the flat key is inserted into the profile cylinder. This cylinder core 6, on which the inserted flat key 4 rests ^{with its insertion stop 4 1} ' ^1. The protrusion of the detector 3 over the

.ft

aAD ORIGINAL

Front face 1 '' of the profile cylinder housing 1 'is makes sense to un -nit the same key 4 in the frame to be able to operate e.g. round and oval cylinders of locking systems. Such cylinders have in the As a rule, no cylinder core collar protruding far beyond the star surface of the cylinder housing. For the actuation of these cylinders is therefore compulsory * so that the counter-detector 7 does not

IV
surface 4 of the key head 4 '' protrudes.

For the production of the new flat key it is advantageous to start from conventional Fchey blanks which, as can be seen in FIG Reide 4 ^{11 form} each pocket to be embedded and connected to it.

^BATH

Claims (2)

DR. ING. DIPL.-PHYS. H; STUBIES PATENTANWÄLTE _DlpL ., _Na p. _EICH L _ER 3500353 - 56 WUPPERTAL 2. BRAHMSSTRASSE 29 Patent claims: With a mechanical and one housed in its bow, non-mechanical coding ver provided flat key and thereby to be operated lock, which contains a corresponding mechanical tumblers having a lock cylinder and a decoding or reading device and power supply provided with an electronic storage and control system that has a Detector located on the lock side with a counter-detector on the key, connected to its non-mechanical coding, is to be brought into contact-free energy and data transmission, characterized in that the detector (3) on the end face (I ¹¹ ) of the lock cylinder (1) and the counter-detector ( 7) in the dem IV lock cylinder (1) facing end face (4) of key head (4 ··) are housed. 2. Flat key and lock according to claim 1, which is provided with a profile cylinder which has a protruding over the end face of its cylinder housing cylinder core end face on which the inserted flat key rests with an existing on its shaft insertion stop, characterized in that the Detector (3) is housed in a projection arranged on the end face of the profile cylinder ^{housing (I 1), which} of ** > 3 about as far as the Tiyliu.ierkern (C) above -Hie Cylinder housing end face (I '') protrudes. Flat key and lock according to claim I or 2, characterized in that the detector (3) and counter detector (7) transmit
and Bmpfangsteile two mutually matched electrical high-frequency oscillating circuits are iir key (4) and lock. ORIGINAL BATHROOM