EP2412899A2 - Key and a system of a lock and a key - Google Patents

Abstract

The system has coding elements arranged at or in a key shaft (1). The coding elements are scanned by a lock arrangement to enable coding movement and/or a power transmission between keys and an actuation unit. The key shaft is axially and/or radially movable in key grip stretched parts. The lock arrangement possesses attack or positioning elements, which determine allocation and displacement layer when inserting the key in the stretched part. The key shaft comprises a coding profile (2), which is formed at an underside of the shaft.

Description

The invention relates to a key with key collar and key shank, wherein coding elements are located on or in the key shank, which can be scanned by an associated arrangement in a lock, in particular a lock cylinder located there, to a movement and / or force transmission between with appropriate coding to allow the key and an actuating means of the lock. The invention further relates to a lock and key system with such a key and with an associated lock.

From the DE 699 04 408 T2 is a key with a movable pin and a safety cylinder and a lock equipped with it already known. According to the local solution, a key for a safety rotary cylinder is to be specified, in which by a movable pusher the copying of a key equipped with it more difficult and the user is given increased security. The key body is flat and elongated and can be inserted into a corresponding keyway of the rotor of a rotary cylinder. The key body has at least one continuous receptacle which extends transversely to the longitudinal axis of the key body and substantially parallel to the central plane of the key body to open into the opposite key narrow sides. The continuous admission leads to a movable pusher, which can move according to a limited transverse to the longitudinal axis of the key body movement. The pusher cooperates with a transverse with respect to the displacement direction positioning member to a corresponding Move transversely to the longitudinal axis. As a result, a movable rotor pin can be moved into a blocking or release position. Although an additional coding option is provided by the pusher, but that does not entail any variant diversity.

For the key with a movable element according to DE 699 32 168 T2 a key blade should have a rotatable actuator which is movable relative to the key blade. The actuator is formed in one piece and includes an interaction assembly, wherein the actuator is rotated when the key is inserted into a mating lock. As a result, the position of the interaction arrangement is changed relative to the key blade. The actuator is placed alongside the at least one key blade and has an axis of rotation perpendicular to the length of the key blade. Through the front side of the lock, a force is applied during insertion of the key on the actuating device, which has a rotation of the actuating element result. Even with this fixed key blade is given by the actuator only an irrelevant improvement of the coding options that is out of all proportion to the production cost of the local key.

The above applies analogously to US 5,724,841 which discloses a key and a cylinder lock with a keyed pivotable member.

In the lock cylinder and the closing method according to DE 10 2004 041 518 A1 is assumed by a lock cylinder for installation in a lock with a closing member for actuating a lock bolt or the like and an actuator, preferably a knob, wherein the actuator is usually decoupled from the closure member. Furthermore, the teaching according to DE 10 2004 041 518 A1 a coupling for connecting the closure member to the actuator upon receipt of an identification code from an associated transponder. Associated with the actuator is an electromechanical transducer which converts actuation of the actuator into electrical energy that is concretely used to assist in wireless communication with the transponder and / or in receipt of a valid identification signal for coupling in a designated clutch.

From the foregoing, it is an object of the invention to provide an improved key and a developed lock and key system, which provide a variety of Kodiermöglichkeiten that can be easily combined with a conventional Stiftabtastung profiles or holes or a magnetic scanning. In addition, an improved security against copying keys is to be achieved.

The object of the invention is achieved on the one hand by a key with the features according to claim 1, wherein the dependent claims comprise at least expedient refinements and developments.

It is therefore assumed that a key with key grain and key shank, which are located on or in the key shank coding elements, which can be scanned by an associated arrangement in a lock, in particular a lock cylinder located there, to a suitable motion and / or Power transmission between the key and an actuating means of the castle, such as a cam to allow.

According to the invention, the key shank comprises at least two parts which are movable relative to the longitudinal axis of the key shank axially (i.e., in the longitudinal axis direction) and / or radially (i.e., perpendicular to the longitudinal axis). In other words, the key shank has at least two parts which can be displaced relative to one another, it being basically sufficient if only one of the parts is movably mounted with respect to the other part, i. the other part does not also have to be movably mounted but can for example be rigidly connected or integrally formed with the crayon. The key shank can (apart from spring elements, as explained below) consist in particular exclusively of said mutually movable parts.

These parts have per se known coding, for example in the form of holes, magnetic elements, a profile structure or the like. The mutually movable parts with the existing coding there obtained by the axial and / or radial movement (eg displacement) an additional spatial coding function. Thus, an associated arrangement in the lock stop or positioning elements have that determine the assignment and displacement position of the mutually movable parts of the key shaft when inserting the key into the lock. In other words, the mutually movable parts of the key shaft take only by inserting the key in the associated lock a predetermined relative position, from which the said spatial coding function results. Only by scanning this spatial coding a movement and / or power transmission between the key and an actuating means of the castle is enabled.

According to an advantageous embodiment of the invention, the mutually movable parts of the key shaft in the crayon are stretched on. As a result, a simple constructive implementation of the relative mobility is possible, since in or on the key grain sufficient space is available to support the parts of the key shank to store movable and / or bias by means of a spring element.

In this embodiment, at least one (or each) of the mutually movable parts may be flexible, preferably spring-back flexible, to allow mutual clamping. Alternatively, at least one (or each) of the mutually movable parts may be spring loaded on the key chalk.

In general, at least one (or each) of the mutually movable parts may be supported on the key crest, not necessarily the aforementioned clamping.

As an alternative to said clamping or supporting in or on the key chalk, at least one of the mutually movable parts of the key shank can be supported on the respective other part, without this operative connection taking place via the key chalk. For example, the one or a part associated with a spring element may be mounted or supported in a groove or pocket of the other part to allow relative movement of the two parts.

Also in this embodiment, at least one of the mutually movable parts may be flexible, preferably spring-back flexible, in order to enable mutual clamping. Alternatively, at least one of the mutually movable parts may be spring-mounted on the respective other part.

In the aforementioned embodiments, one or more stops may be provided on the key or key shank to limit the relative mobility of said parts of the key shank.

Further, in the aforementioned embodiments, the mutually movable parts of the key shank may extend along the entire length of the key shank to realize the illustrated spatial coding function substantially along the entire length of the key shank. Alternatively, however, it is also possible that at least one of the mutually movable parts extends only along a longitudinal portion of the key shaft, which is shorter than the key shaft. For example, the part in question may extend along a length of at least a quarter or at least half the length of the key shaft. As a result, the production cost of the key can be reduced, and yet there are still a variety of coding options available.

In one embodiment of the invention, the mutually movable parts of the key shaft comprise a plurality of coding elements, which include projections and recesses. As a result, a multiplicity of coding possibilities can be provided in a structurally simple manner for the described spatial coding function.

According to a preferred embodiment, each of the mutually movable parts of the key shaft has a plurality of coding elements, which are arranged distributed along a respective longitudinal portion of the key shaft. This allows the length of the key shaft to do so be exploited to realize a large number of different coding possibilities.

According to an advantageous embodiment, the mutually movable parts of the key shaft are formed as divided in the longitudinal axis direction key bit. In particular, the parts may be movable along a plane relative to each other, which runs along the longitudinal axis of the key shaft, wherein the mutually movable parts form a key bit due to their spatial coding function.

The said parts of the key shank can be arranged lying next to one another displaceably or else lying parallel to each other in a parallel displaceable manner.

In a further development of the invention, the clamped parts are rotationally symmetrical, wherein the scanning of the coding is carried out at least partially circumferentially.

In addition to the aforementioned axial displacement of the mutually movable parts, the angular position of the parts can be mutually variable to obtain a further coding function. In this sense, in one embodiment of two clamped parts, they do not need to be uniformly spaced apart from one another during a non-axial displacement, but the corresponding parts can assume a defined angular position, which is variable. With the associated positioning elements in the lock, the measure of the angle represents a corresponding coding variant. The angular position of the mutually movable parts of the key shaft can be variable, in particular with respect to the longitudinal axis of the key shaft, ie at least one of the parts can take an orientation that is at a non-zero angle to the longitudinal axis.

In a further development of the invention, the key shank with the mutually movable coding-determining parts consists at least partially of a flexible or elastic material which does not impair the coding and scanning function. In this case, a rigid section for force transmission between the key and an actuating means of the associated lock can preferably be provided on the shaft end on the shaft side.

Such an embodiment creates a completely new key, which does not consist of a continuous rigid material as usual. The mutually movable parts may e.g. wire or made of a flexible plastic material.

The object of the invention is achieved on the other hand by a lock and key system with a key of the kind explained and with a lock having an associated arrangement for scanning the coding of the key to a suitable movement and / or power transmission between them to allow the key and an actuating means of the lock.

Preferably, said arrangement has stop or positioning elements in the lock which, when the key is inserted into the lock, determine a position of association and displacement of the mutually movable parts of the key shaft. As a result, the mutually movable parts of the key shaft assume a predetermined relative position only by the insertion of the key into the associated lock, from which the said spatial coding function results.

It is within the meaning of the invention, in a Knaufbetätigungsanordnung (ie, when the lock and key system further comprises a rotatable knob) known mechanical coupling between knob and lock, in particular a lock cylinder there existing, by means of at least one of the mutually movable parts of the key shaft to effect.

In this embodiment, a power supply for mechatronic elements of the lock and key system can be carried out in the freewheeling case of the knob by quickly turning, namely, if the lock and key system further comprises an electrical energy generating device.

The invention will be explained below with reference to exemplary embodiments and with the aid of figures.

Fig. 1 bis 3

die Anordnung von zwei nebeneinander befindlichen, parallel verschiebbaren bzw. winkelvariablen (Fig. 3, unten) beweglichen Teilen als Bestandteil des Schlüsselschafts oder einer Schlüsselklinge mit sich ergebender zusätzlicher Kodierfunktion im Vergleich der Fig. 1 und 2;

Fig. 4

eine Darstellung einer Ausführungsform eines erfindungsgemäßen Schlüssels mit einem Schlüsselschaft, welcher zwei in einer Ebene nebeneinander liegende und gegeneinander verschiebliche Teile aufweist, die übliche Kodierungen in Form von Senkungsbohrungen und Profilen aufweisen; und

Fig. 5

eine Darstellung einer Ausführungsform der Erfindung mit zueinander beweglichen Teilen, die im Wesentlichen rotationssymmetrisch ausgebildet sind und über die Längsachse zueinander bzw. gegeneinander einer Verschiebung unterliegen, so dass sich zusätzliche Kodierungsmöglichkeiten ergeben.

Hereby show:

Fig. 1 to 3

the arrangement of two juxtaposed, parallel displaceable or angle-variable ( Fig. 3 , below) moving parts as part of the key shaft or a key blade with resulting additional coding function in comparison Fig. 1 and 2 ;

Fig. 4

a representation of an embodiment of a key according to the invention with a key shank, which has two in a plane adjacent and mutually displaceable parts having the usual codes in the form of countersunk holes and profiles; and

Fig. 5

a representation of an embodiment of the invention with mutually movable parts which are substantially rotationally symmetrical and are subject to each other over the longitudinal axis or against a shift, so that there are additional coding options.

Like from the Fig. 1 recognizable, it is assumed that a key shaft 1, which has a Kodierprofilierung 2, which is formed on the underside of the key shaft 1. The coding profiling comprises projections and recesses which have different distances but also a different depth characteristic.

Two adjacent profiled, in the longitudinal axis direction (double arrow in Fig. 2 ) displaceable parts 3, 4 result in a modified Gesamtkodierprofil depending on the displacement position of the movable parts 3, 4 to each other. The respective displacement position after insertion of the key into an associated lock is given by stops located in the lock or in the local lock cylinder and / or positioning elements, so that an unambiguous assignment to the lock and key is given.

The movable elements that make up the key shank, for example, are clamped in a key not shown in the figure. A corresponding movable storage with mutual bracing can be created by existing in the crayon spring elements. As an alternative to this, one of the two displaceable parts 3, 4 can be supported directly on the other part 4, 3, thus bypassing the key crayon.

At the bottom of the Fig. 3 shown top views is on the one hand, the axial displacement of the two movable parts 3, 4, but also a combination of axial and radial or angular position changed shift recognizable (angle a).

It results in an axial profile shift, as compared to the Fig. 1 and 2 comprehensible, with originally the same depth codes or profiles by the axial and / or radial displacement of different depth profiles. In principle, the more encodings on the individual coding elements can be shifted relative to one another, the greater the number and the variance of the encodings.

In the presentation after Fig. 4 two in a plane movable to each other in the longitudinal axis direction movable, clamped in the crayon parts 3 and 4 are shown, wherein the parts 3, 4 have known coding in the form of countersunk holes with or without an additional raised profiling.

Even with such an embodiment of a flat key is created by the axial mobility of the parts 3, 4 to each other an extended coding.

With the schematic representation after Fig. 5 a further variant of the system is to be explained, which assumes a substantially rotationally symmetrical design of the key shaft. Here, a division is preferably present in the central longitudinal axis, resulting in two half parts which are displaceable relative to one another with the consequence of the extended coding possibilities according to the preceding descriptions. Similarly, two complete rotationally symmetric parts with circumferentially oriented projections and recesses can be fixed as coding elements next to each other movable in the crayon, without departing from the inventive concept.

Notwithstanding the illustrated embodiments, at least one (or each) of the mutually movable parts 3, 4 extend only along a longitudinal portion of the key shaft 1, which is shorter than the key shaft.

In a figuratively also not shown embodiment with Knaufbetätigungsanordnung and coupling device for activating a lock cylinder in single or Doppelknaufausgestaltung can be located in the knob assembly an integrated mechanical, mechatronic or correspondingly combined movement mechanism, which on the introduction of one of the movable spanned in the crayon parts produces a positive connection in the sense of a movement coupling. Additional coupling agents can be omitted in this solution.

In the decoupled state it is possible, via an arranged in the knob electric power generating device, e.g. Working according to the dynamo or piezo principle to provide energy to perform necessary mechatronic or electrical functions in case of failure of a rechargeable battery or a battery.

Whether in this variant of the invention in Knaufzylindern the coupling is made to operate the lock on the knob with inserted key, of course, depends on the appropriate coding based on the positioning elements located in the cylinder. Is the coding assignment, then at least one of the moving parts due to a spring bias caused by the storage in the key crop the desired fit, almost as a coupling element or coupling pin can be effected.

Claims (15)

Key with key and key shank (1), wherein coding elements are located on or in the key shank which can be scanned by an associated arrangement in a lock, in particular a lock cylinder located there, characterized in that the key shank (1) comprises at least two parts (3 , 4) which are mutually axially and / or radially movable with respect to the longitudinal axis of the key shaft, the parts having coding elements which receive an additional spatial coding function by the axial and / or radial movement. Key according to claim 1, characterized in that the mutually movable parts (3, 4) of the key shaft are clamped in the key crop. A key according to claim 2, characterized in that the mutually movable parts (3, 4) of the key shaft are spring-loaded resiliently or spring-loaded on the key blade. Key according to claim 1, characterized in that at least one of the mutually movable parts (3, 4) of the key shaft is supported on the other part,
wherein the at least one part is preferably resiliently spring-loaded or spring-mounted on the other part. Key according to one of the preceding claims, characterized in that the mutually movable parts (3, 4) of the key shaft extend along the entire length of the key shaft (1), or that at least one of the mutually movable parts (3, 4) only along a longitudinal portion of the key shaft (1) which is shorter than the key shaft. Key according to one of the preceding claims, characterized in that each of the mutually movable parts (3, 4) of the key shaft has a plurality of coding elements which comprise projections and recesses. A key according to any one of the preceding claims, characterized in that each of the mutually movable parts (3, 4) of the key shaft has a plurality of coding elements distributed along a respective longitudinal portion of the key shaft. Key according to one of the preceding claims, characterized in that the mutually movable parts (3, 4) of the key shank are formed as a key bit divided in the longitudinal axis direction. Key according to one of the preceding claims, characterized in that the parts (3, 4) are juxtaposed to each other displaceable, or that the parts (3, 4) are parallel to each other displaced parallel. Key according to one of the preceding claims, characterized in that the parts (3, 4) are polygonal or rotationally symmetrical, wherein the coding elements are scanned peripherally. Key according to one of the preceding claims, characterized in that in addition to an axial displacement of the mutually movable parts (3, 4) an angular position of the parts is mutually variable to obtain a further coding function. A key according to one of the preceding claims, characterized in that the key shank consists at least partially of a flexible or elastic material which does not adversely affect the coding function, wherein a rigid portion for force transmission between the key and an actuating means in the lock is preferably provided on the shaft end on the shaft side. Lock and key system with a key according to one of the preceding claims and with a lock which has an associated arrangement for scanning the coding elements of the key, to allow for proper coding a movement and / or power transmission between the key and an actuating means of the lock , characterized in that the arrangement in the lock has stop or positioning elements which determine an assignment and displacement position of the mutually movable parts of the key shaft during insertion of the key into the lock. Lock and key system according to claim 13, characterized in that the lock and key system further comprises a knob, wherein a mechanical coupling between the knob and the lock, in particular a lock cylinder present there, by means of at least one of the mutually movable parts of the key shaft is effected , Lock and key system according to claim 14, characterized in that the lock and key system comprises by mechanical movement, in particular rotation of the knob, electrical energy generating device.

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