EP2643536B1 - Mechanical or mechatronical actuatable locking system - Google Patents

Description

The invention relates to a mechanically or mechatronically operable locking system with a blocking element or an actuator and a movement lock.

Locking cylinders, which are not exclusively of a mechanical construction, often include actuators that affect or interfere with certain locking or unlocking means within the lock cylinder. This can be, for example, a rotation or displacement of a component, such as a locking bar or a blocking function, which is intended to prevent rotation or displacement of the component.

It is to be understood that each component has, of course, a certain mass that may be put into motion by physical energy in the barrier system, such as vibrations or external impulse loading, so that the function achieved, for example, in blocking rotation or movement should be, is just picked up.

The object of the invention is therefore to provide a solution which prevents unwanted or unintentional movement of a blocking element or an actuator.

This object is achieved according to the invention with a mechanically or mechatronically operable locking system with a blocking element or an actuator and a movement lock, which is characterized
in that the movement lock has a blocking element which can be brought into engagement with the blocking element or actuator by a pretensioned or moved system which can be triggered by an external impulse load on the locking system. The blocking element is temporarily engageable with the locking element or actuator and recoverable by the legitimate operation of the locking system.

Constructively, this movement lock can be formed in various ways, preferably embodiments are to be explained below.

According to one embodiment of the invention, the blocking element comprises a pivot lever mounted on one side, at its free end with the actuator to be locked in its movement engageable section or stop is provided and by a tension spring, with its one end at a distance from the pivot lever bearing is connected to the pivot lever and is mounted at the other end at a distance from the pivot lever bearing and offset therefrom, and which is aligned and adjusted so that at a lying substantially in extension of the pivot lever axis alignment of the spring this is in a stable position, in which the spring is stretched and relaxed in mirror-image deflections of the pivot lever, wherein one of the deflections of the pivot lever, the rest or release position and the other deflection of the pivot lever is the blocking position and the pivot lever in its release via the stable position in the Sper is pivotable position.

If the movement lock is intended to temporarily block the rotation of a multi-component actuator, it is provided that
in that one of the components of the actuator is an electrically driven turnstile which is engageable with a locking bar acting between a cylinder core and a cylinder housing in a lock cylinder to prevent rotation of the cylinder core when the key does not match the code, the stop being for the pivot lever remains at normal operation of the lock cylinder in the rest or release position, pivots at an external impulse to the components in the movement of the turnstile preventing blocking position.

This can be brought into contact with the pivot lever mass, preferably ball, be provided which is freely movable in a recess assigned to it and exerts upon impulse loading of the pivot lever in its rest or release position on this a pulse that him from the rest or Trigger position moved to the locked position.

It is further provided that the pivot lever by a pulse exerted on him when pulling out of the legitimate operation of the locking system serving Key is moved back from the locked position on the labile position in the rest or release position.

A further embodiment is that the rotor shaft of the actuator has a portion which extends in the manner of a cam substantially rectangular and is rotatable between the opposite legs of a U-shaped Rückstellrahmens, wherein the return frame is perpendicular to the rotor shaft freely movable and a the leg of the return frame by its own weight or spring-loaded on one of the sides of the rectangular portion can be applied, so that a free rotation of the rotor shaft can be prevented.

In this case, the portion seen in the direction of the rotor shaft has two opposite planar longitudinal surfaces and two arcuately connecting these transverse surfaces and that one of the legs of the return frame in the Drehruhelage the rotor shaft rests against the one longitudinal surface of the section.

Another non-inventive embodiment of the movement lock is characterized in that
that the blocking element is a locking bar, which acts between a cylinder core and a cylinder housing at a lock cylinder to prevent rotation of the cylinder core when not key in coding and releases this when authorized operation of the locking system,
wherein a relative to the locking bar movable, in particular axially displaceable, designed as a blocking element, pin is provided which does not hinder the movement of the locking bar in its rest position, but is axially displaced at an external impulse and prevents non-corresponding contact surfaces, the movement of the locking bar, wherein the rest position of the blocking element is held by a holding element, which is displaceable transversely to the blocking element and the holding element by the impulse application against the force of a spring is axially removable from the blocking element and thus allows its axial displacement.

In this case, it is further preferably provided that when closing authorization by an inserted key by a lever pin both the movement of the turnstile takes place, which releases the movement of the locking bar, as well as with the displacement of a coupling element, the displacement of the blocking element, wherein the rest position of the blocking element by the Holding element is held in the not corresponding holding surfaces in a position out of engagement with the locking bar.

• Fig. 1: schematisch einen Teil eines Schließsystems, und zwar die mit dem Aktuator zusammenwirkende Sperrleiste im normalen Sperrzustand ,
• Fig. 2: den Zustand, der ein Schließen ermöglicht,
• Fig. 3: den Zustand bei ausgelöster Bewegungssperre,
• Fig. 4: das zusätzliche Sperrelement in Form eines Rückstellrahmens und
• Fig. 5 -8: ein nicht erfindungsgemässes Aursführungsbeispiel in verschiedenen Ansichten und Zuständen.

The invention will be explained in more detail with reference to the drawings. It shows

• Fig. 1 FIG. 2 schematically shows a part of a locking system, namely the locking bar cooperating with the actuator in the normal blocking state, FIG.
• Fig. 2 : the state that allows closing,
• Fig. 3 : the condition when the immobilizer is triggered,
• Fig. 4 : the additional blocking element in the form of a reset frame and
• Fig. 5 -8 A non-inventive Aursführungsbeispiel in different views and states.

In a locking system not shown here in detail, for example a lock cylinder housing 21 with a cylinder core 22 rotatably mounted therein, into which a key, not shown here, can be introduced, an electrically operated actuator 1 is provided.

If an electronically coded key is used in this locking system, an electrical signal is applied to the actuator, with the key in place, which then rotates the rotor shaft 2 into a position which releases the locking bar 13 so that it moves radially inward can, emerges from the recess 23 and thus releases the parting plane between the lock cylinder housing and cylinder core in a conventional manner, so that a closing operation is executable.

By vibrations or in particular an external impulse, for example a shock, it could happen that - even without a matching key, although the actuator is not activated, but the rotor shaft performs a small rotational movement.

In the worst case, this may be sufficient to also release the blocking element or allow an actuation, d. H. a closing process would be executable.

According to the invention is - after an embodiment, as in the FIGS. 1 to 3 is shown - a pivot lever 3 is provided which is under the train of a spring 4.

Thus, the pivot lever can move and yet is under the spring, the storage of both is slightly offset from each other.

It is essential that the spring 4 in the in FIG. 1 shown position, the so-called. Rest or Trigger position, is curious. Also curious is the spring in the locked position, which in the FIG. 3 is shown. Between these two positions, the pivot lever must overcome a position in which the spring is slightly more tensioned.

By an external impulse loading of the pivot lever from the rest or release position ( Fig. 1 ) is moved so that it overcomes the intermediate position in the blocking position ( Fig. 3 ) pans.

Can be supported this pivoting movement on the intermediate position even by a freely movable ball 5, the mass is set at a pulse from any direction in motion and presses against the pivot lever, as the FIG. 3 shows.

An additional safeguard against the rotation of the actuator can be achieved by a so-called. Reset frame 7.

For this purpose, an enlarged in the manner of a cam portion 6 is provided on the rotor shaft 2.

As the FIG. 4 shows, this section 6 is formed by the return frame 7, which is U-shaped.

The reset frame 7 is vertically movable with respect to the rotor shaft 2.

Of course, since the reset frame has a mass, albeit small, it is subject to gravity, which - in terms of its freedom of movement - occupy the lowest position, as does the FIG. 3 shows. He can also be held by a spring in this preferred position.

Since the formed in the manner of a cam portion 6 on the rotor shaft is substantially rectangular, the return frame applies with its one, in this case upper leg 8 to the upper longitudinal surface 9, so that the weight or the mass of the return frame the Fixed rotor shaft in this position and at an external pulse - due to the shape of the section 6 - also pushes back.

In the Figure 5-8 an embodiment of the invention is not shown, wherein the FIGS. 6 and 8th each a different view of the in the Figures 5 or 7 state shown.

Not shown in these figures, the lock cylinder, while the between this and the cylinder core again acting in a known manner locking bar is indicated and 13.

In this case, the locking bar 13 cooperates again with an electrically operated actuator 1, i. If the electrically operated actuator 1 is actuated with the turnstile 12, depending on the design, the locking strip 13 can be moved out of the position in which it locks the locking system and release the blocking position or the electrically operated actuator can be connected to the turnstile 12 be brought back into the position in which the locking bar 13 can not be moved.

In this embodiment not according to the invention, a pin serving as blocking element 14 is provided, which is displaceable axially (relative to its longitudinal axis) spring-loaded (spring 18) ( Fig. 5 ) This pen points, like the FIG. 8 shows, different cuts 15, which allow depending on the axial position of the pin 14, a radial mobility of the locking bar 13.

In its the radial movement of the locking bar releasing axial position, this pin is held by a holding element 17 - in this case, a under the pressure of a spring 19 ball - ( Fig. 6 ).

When a loading of the locking system with an external pulse, the holding member 17 is axially in the in the FIG. 8 moved position shown, whereby the spring 19 relaxes. It can be seen that the locking bar can not move radially by the support in the upper recess, so that thus the lock cylinder is blocked, so no closing operation can be performed.

When inserting a key, not shown here, the lever pin 16 is rotated and releases the standing under the pressure of a spring 20 coupling element 24.

This coupling element 24 in turn - against the pressure of the spring 19 and the holding element 17 - designed as a pin blocking element 16, again in the in the FIG. 6 illustrated starting position.

Claims (6)

1. Mechanically or mechatronically actuatable locking system having a locking element or an actuator (1) and a movement lock,
   with the movement lock having a blocking element (14) which can be temporarily brought into engagement with the locking element or actuator by a system which is pretensioned or caused to move and triggered as a result of an external pulse application on the locking system, and is resettable by the legitimate actuation of the locking system,
   characterized
   in that the blocking element includes a unilaterally supported pivot lever (3) having a free end provided with a section or stop (10) which can be brought into engagement with the actuator (1) to be locked in its movement, and
   by a tension spring (4) which has one end connected to the pivot lever (3) at a distance to the pivot lever bearing (11) and the other end being supported at a distance to the pivot lever bearing (11) and offset thereto, and which is oriented and adjusted such that the pivot lever assumes a stable position when the tension spring (4) is aligned substantially in prolongation of the pivot lever axis, in which position the spring is tensioned and is in each case relaxed in deflections of the pivot lever (3) that are mirror images of one another, with one of the deflections of the pivot lever representing the rest or release position and the other deflection of the pivot lever representing the locking position, and with the pivot lever being swingable when released from the stable position into the locking position.
2. Locking system according to claim 1, for temporarily blocking the rotation of an actuator comprising a plurality of components,
   characterized
   in that
   one of the components of the actuator (1) is an electrically-driven rotary lock (12) which can be brought into engagement with a locking bar (13) acting in a lock cylinder between a cylinder core (22) and a cylinder housing (21) in order to prevent a rotation of the cylinder core (22) when a key has a wrong encoding, wherein the stop (10) for the pivot lever (3) remains in the rest or release position, when the lock cylinder is actuated in a normal way, and swings into the locking position in the presence of an external pulse application upon the components to prevent the movement of the rotary lock (12).
3. Locking system according to claim 2,
   characterized by
   a mass, preferably a ball (5), which can be brought into contact with the pivot lever (3) and is freely movable in a recess associated thereto and applies a momentum upon the pivot lever, when the pivot lever is acted upon by a pulse in its rest or release position so as to move the pivot lever away from the rest or release position into the locking position.
4. Locking system according to one of the preceding claims,
   characterized
   in that the pivot lever is movable from the locking position via the unsteady position back to the rest or release position, when the authorized key for operating the locking system is withdrawn to thereby apply a momentum upon the pivot lever.
5. Locking system according to one of the preceding claims,
   characterized
   in that the rotor shaft (2) of the actuator (1) has a section which widens in a substantially rectangular manner in the manner of a cam (6) and is rotatable between the opposing legs of a U-shaped reset frame (7), wherein the reset frame (7) is freely movable in perpendicular relationship to the rotor shaft (2) and one of the legs (8) of the reset frame (7) is able to bear upon one of the sides of the rectangular section by its own weight or by action of a spring so that a free rotation of the rotor shaft (2) can be prevented.
6. Locking system according to claim 5,
   characterized
   in that the section as viewed in direction of the rotor shaft (2) has two flat longitudinal surfaces (9) disposed in confronting relation and connected in the shape of an arc by two transverse surfaces, and
   in that one of the legs of the reset frame rests upon the one longitudinal surface of the section, when the rotor shaft assumes the idle rotation position.

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