EP2039857A1 - Electronic safety lock - Google Patents

Abstract

The electronic safety lock (1) has a lock bolt, an articulated swiveling body (7) arranged to the lock bolt and an inhibitor (13), by which lagging of the swiveling body is blocked. A release unit (11) is provided that cooperates with the inhibitor, which is arranged at the swiveling body in a relocating manner and is fixable in a relative situation.

Description

The invention relates to an electronic security lock, in particular a safe lock, with a lock bolt, a pivotally arranged thereon swivel body and a locking member, by means of which a pivoting movement of the swivel body can be blocked.

Electronic security locks in general, as well as safe locks in particular, are well known in the art. You have a usually pivotally trained lock bolt. To open the lock, the lock bolt is to pivot in its open position. However, such pivoting in electronic security locks is only possible for users authorized for this purpose.

The lock bolt is coupled to a pivoting body, which is preferably articulated mounted on the lock bolt. Upon pivoting of the pivoting body, the lock bolt pivots. A pivoting movement of the pivoting body and thus also a pivoting movement of the lock bolt can be locked in the previously known from the prior art security locks by means of a locking member. In the simplest way, this is done by blocking the locking member in the locked state, a complete pivoting of the pivot body and thus a complete pivoting of the lock bolt. Only when the locking member is transferred to its release position, the swivel body and thus the thereto hinged lock bolt can be pivoted to open the security lock. In this case, a transfer of the locking member in the release position only authorized users is possible, which is synonymous with the fact that the security lock by pivoting the lock bolt only authorized persons is possible. Because only if the locking member is spent in its release position, an opening of the security lock can be done by pivoting the lock bolt.

Although the previously known from the prior art security locks of the type described above have proven themselves in everyday practical use, they are not free of disadvantages. In particular, there is an increased interest in improving the security against manipulation of previously known security locks. It is therefore the object of the invention to propose a safety lock with improved security against manipulation.

To solve this problem, a safety lock of the type described above is proposed, which is characterized by a cooperating with the locking member release member, which is arranged displaceably on the pivot body and in its relative position to this fixable.

The peculiarity of the lock according to the invention is cooperating with the locking member release member. This release member arranged on the swivel body makes it possible to transfer the locking member into its release position. In contrast to the prior art, therefore, the locking member is not released from the outside by the authorized user directly, there is rather a release of the locking member by a self-arranged in the lock release member. This release member is slidably disposed on the pivot body and fixed in its relative position to this.

It is envisaged that the locking member can be transferred by means of the release member only in its release position when the release member occupies a specific position in its relative position to the locking body and locked in this position relative to the pivoting body in its relative mobility. This "open position" of the release member is provided by the lock electronics provided for this purpose after the prior authorization of Activation of the lock authorized person automatically set. If there is no or a wrong authorization, the release member is always in the "Blockadestellung" in which by means of the release member a transfer of the locking member is not possible in the release position.

The above-described operation of the security lock according to the invention is tamper-proof compared to security locks known from the prior art. This results, on the one hand, from the fact that it is not the blocking member that can be indirectly actuated by an authorized user directly but via a release member provided for this purpose. This allows a much better and thus tamper-proof encapsulation of the locking member against, for example, mechanical acts of violence. In addition, the release member can take a variety of possible positions, with only one position of the release member in relation to the pivot body causes actuation of the locking member for transferring the same into its release position. This "open position" of the release member can be set depending on the manufacturer selectable geometric sizes, that is coded. The embodiment of the invention therefore makes it possible to provide different "open positions" of the release member for different security locks. The removed from an example broken or dismantled safety lock electronics so can not be used to bridge the electronics of another security lock. It is possible in an advantageous manner an individualized coding, which also contributes to the improved manipulation security.

The locking member of the lock according to the invention is designed according to a further feature of the invention as a single end articulated lever arm. This lever arm can be pivoted in accordance with its articulated bearing, in the blocking position on the one hand and the release position on the other. In the blocking position of the locking member pivoting of the pivoting body and thus pivoting of the lock bolt is not possible. The locking member is, however, in its release position, the pivoting body and thus the hinged thereto lock bolt can be pivoted to open the security lock.

Of course, other embodiments for the locking member come into question. It is by no means compulsory to design the locking member as a one-sided articulated lever arm. Other embodiments are of course conceivable here. Thus, the locking member may for example be formed as a rotary body or having the shape of a slider. Of crucial importance with respect to the locking member is its function. In that regard, it is in terms of the design of the locking member according to the invention alone to ensure that the locking member in at least one position blocking the pivot body and thus also of the lock bolt and in at least one other position allows release of the pivot body and thus the lock bolt.

For the purpose of blocking a pivoting movement of the swivel body, the locking member has, for example, a pawl which cooperates with the swivel body in the blocking position.

The locking member is in accordance with a further feature of the invention pawl side, that is formed on the other end spring loaded. It comes here a compression spring is used, which presses the locking member pawl side against an abutment, wherein the locking member is in this position in its blocking position.

The cooperating with the locking member release member is preferably formed as a piston which is arranged linearly longitudinally displaceable on the pivot body. Locking member side, the release member is tapered and preferably has a beveled sliding surface which cooperates with an abutment arranged on the locking member. When the release member is in its "open position" and is fixed relative to the swivel body in its relative position, pivoting of the swivel body causes the release member disposed thereon to pivot against the associated abutment disposed on the locking member, as a result, against the locking member swung acting spring force and transferred from the blocking position to the release position. In this release position then a further pivoting of the swivel body and thus a pivoting of the lock bolt to open the lock is possible.

However, if the release member is not in the correct position relative to the swivel body, that is not in the "open position", so it runs at a pivoting of the swivel body against the abutment member arranged on the abutment, without thereby pivoting movement of the locking member is achieved so that the locking member can not be moved from its blocking position out. The swivel body therefore moves with non-pivoted locking member against the pawl of the locking member, which prevents pivoting of the swivel body for the purpose of opening the lock.

The release member, which is arranged so as to be displaceable relative to the swivel body, is designed as a piston displaceably arranged in a release member in a preferred embodiment. This piston is spring loaded, so that it is always pressed in the direction of the locking member from the release member out. Only with a corresponding, the spring force counteracting force of the piston can be retracted into the release member. To fix the piston in its relative position relative to the locking member and thus also with respect to the pivoting body is a fixing device, which preferably has a clamping unit. This clamping unit may be formed for example as a piezoelectric element. When energization of the piezo-element is a fixation, that is, the piston formed as a release member is relative to the release member and thus relative to the pivoting body not further movable. In the de-energized state of the piezoelectric element no fixation and / or jamming of the piston formed as a release member, so that it continues to be freely displaceable relative to the release member and thus against the swivel body.

A special manipulation security learns the safety lock according to the invention according to an optional embodiment in that a transfer of the locking member in the release position only in a certain relative position of the release member relative to the pivot body is possible. This "open position" of the release member is as follows: The release member is due to the spring bias in its extended position relative to the swivel body. The swivel body is now pivoted together with the release member arranged thereon, as a result of this with its locking member side provided obliquely formed sliding surface runs against the formed on the locking member abutment. As a result of this casserole moves the release member against the spring force relative to the swivel body. In only one of a plurality of possible relative positions of the Freigliedes relative to the swivel body, the Freiglied assumes such a position, which allows, with a further pivoting of the swivel body together with the release member disposed thereon, a pivoting of the locking member can cause the fact that the Locking member-side end of the free body on the abutment of the locking member attacking this pivots. In this case, a pivoting of the locking member is only possible if the release member is fixed in this particular position in its relative position relative to the swivel body. If a fixation were not present, instead of a pivoting of the locking member, a further method of the release member would be effected in the longitudinal direction, but this will not lead to an opening of the security lock.

The integrated in the security lock electronics is the "open position" of the release member known. If, after prior authorization by a person authorized to do so, the release member reaches the "open position", then the lock electronics ensures an automatic blocking of the release member in this position. If not authorized, a fixation of the release member is not triggered by the lock electronics. In this way it is ensured while improving the security against manipulation that only authorized users can open the safety lock according to the invention.

Figur 1

in einer schematischen Darstellung das erfindungsgemäße Schloß in Neutralstellung;

Figur 2

in einer schematischen Darstellung das erfindungsgemäße Schloß in versperrter Stellung;

Figur 3

in einer schematischen Darstellung das erfindungsgemäße Schloß in entriegelter Stellung und

Figur 4

in einer schematischen Darstellung das erfindungsgemäße Schloß in geöffneter Stellung.

Further features and advantages of the invention will become apparent from the following description with reference to FIGS. Show

FIG. 1

in a schematic representation of the lock according to the invention in neutral position;

FIG. 2

in a schematic representation of the lock according to the invention in the locked position;

FIG. 3

in a schematic representation of the lock according to the invention in the unlocked position and

FIG. 4

in a schematic representation of the lock according to the invention in the open position.

The FIGS. 1 to 4 show the safety lock 1 according to the invention in different positions. FIG. 1 shows the neutral position. FIG. 2 shows a locked and FIG. 3 an unlocked position of the lock. In FIG. 4 the lock 1 is finally shown in the open state. The reference numerals used in each case identify the same parts.

The safety lock 1 has a lock bolt 3. This is arranged within a housing formed from housing shells, with a better overview because of FIGS. 1 to 4 only a housing shell 2 is shown. When the lock bolt 3 is in its ausverschwenkten position, as shown in the FIGS. 1 to 3 is shown, it is not possible to open the lock 1. Only when the lock bolt 3 is entangled in the housing of the lock 1, an opening of the lock is possible. This position of the lock bolt 3 is in FIG. 4 shown.

The lock bolt 3 is arranged by means of a bolt 5 hinged to an articulated arm 4, which articulated arm 4 in turn is pivotable about a pivot point 6. The lock bolt 3 is further connected by means of a bolt 8 articulated to a swivel body 7, wherein the swivel body 7 is also formed pivotable, namely about a pivot point 9. When the safety lock 1 is in its locked position, the lock bolt 3 can not pivot in the in FIG. 4 perform the position shown. A slide, not shown in the figures, of a bolt mechanism, also not shown in the figures, of a safe, for example, can not then be moved past the safety lock 1 because the lock bolt 3 of the security lock 1 prevents movement of such a slide. As a consequence, for example, the door of a vault can not be opened. Only when the safety lock 1 is operated by an authorized person and the lock bolt 3 for a procedure in the in FIG. 4 shown position is released, the slide of a bolt factory can slide past the safety lock 1, whereby an opening example of the safe is possible.

The lock 1 further comprises a locking member 13. This is formed in the embodiment shown as a lever arm and pivotally mounted about the pivot point 14. Other embodiments are of course also conceivable. The pivot point 14 opposite the locking member 13 has a pawl 15. With respect to the drawing plane to FIG. 1 is the locking member 13 on the underside of the pawl 15 loaded by a compression spring 16, which is supported on the housing shell 2 and the locking member pawl side abuts against an abutment 17. In this in FIG. 1 shown position is there blocking member 13 in its blocking position.

This release member 10 has a release member 11 in the form of a piston, wherein the release member 10 in the longitudinal direction 21 of the pivot body 7 relative to the pivot body 7 is linearly movable. By means of a spring, not shown in the figures, the release member 11 is spring-loaded, wherein a compression spring is used, so that the release member 11 due to the action of spring force with respect to the plane of the drawing FIG. 1 is pressed down. The release member 11 acts, as will be described below, with its locking member side formed, inclined sliding surface 18 with a locking member 13 formed on the abutment 12 together. This abutment 12 is, as the figures can be seen, for example, designed as a bolt.

The pivoting body 7 can be pivoted about the pivot point 9, in the direction of the arrow 19 shown in the figures. In a pivoting movement of the pivoting body 7, the release member 10 and the release member 11 supported therefrom are pivoted, that is, in correspondence with the arrow 19.

The locking member 13 may pivot in accordance with the in FIG. 4 In this case, the locking member 13 is always under Federvorspannkraft in the direction of the abutment 17 due to the pawl side acting thereon spring force.

The operation of the lock according to the invention is the following:

That in the FIGS. 1 to 4 shown security lock 1 is for example part of a security device for a safe. Such a vault usually has a bolt mechanism, which is to be operated from the outside by a user. This bolt mechanism is engaged with the lock bolt 3 of the security lock 1 according to the invention in the locked state of the safe. In general, the bolt mechanism has a slide, not shown in the figures, which has an opening which is penetrated by the lock bolt 3 of the security lock 1 according to the invention in the locked state of the safe. If the vault is now to be opened, the bolt mechanism and thus the pusher are set in motion from the outside via corresponding handles on the vault. The slider presses in accordance with the in FIG. 1 drawn force arrow F on the lock bolt 3 of the security lock according to the invention 1. As a result of this force is a pivoting of the lock bolt 3, with respect to the drawing plane to FIG. 1 around the pivot point 6 down. As a result of this twisting movement of the lock bolt 3 and the coupled with the lock bolt 3 swivel body 7 is pivoted, with respect to the plane of the drawing Fig. 1 about the fulcrum 9 to the right in accordance with the arrow 9. Together with the swivel body 7 and the release member 10 arranged thereon and the release member 11 supported therefrom are also pivoted.

The release member 11 is spring-loaded, which is why with respect to the drawing plane to FIG. 1 is pushed out of the release member 10 down. The release member 11 is tapered member side and has a tapered sliding surface 18. This runs at a pivoting movement of the pivoting body on the locking member 13 formed on the abutment 12, as in FIG. 1 shown.

In a continued pivoting movement of the pivot body 7, the sliding surface 18 slides along the abutment 12, which leads to a displacement of the release member 11 in the longitudinal direction 21 of the pivot body 7, with respect to the plane of the drawing FIG. 1 up. The release member 11 is thus pressed into the release member 10 against the force acting on the release member 11 spring force. It is on the release member 11th acting spring force less than the pawl side acting on the locking member 13 spring force, so that introduced due to a continued pivoting movement of the pivot body 7, the release member 11 in the release member 10 and not the locking member 13 with respect to the drawing plane FIG. 1 is pressed down.

If the release member 11 is pushed far enough into the release member 10 during a continued pivoting movement of the swivel body 7, then it will rebound with respect to the plane of the drawing FIG. 2 right edge of the pivot body 7 against the pawl 15 of the locking member 13 at. Another pivoting of the pivoting body 7 is therefore not possible. The locking member 13 is in its blocking position and prevents further pivoting of the swivel body 7, which is synonymous with the fact that the pivoting movement of the swivel body 7 and thus the pivoting movement of the lock bolt 3 is locked. Since a pivoting movement of the lock bolt 3 is locked, a slide acting thereon a bolt factory, for example, a safe can not be moved further. As a consequence, this leads to the fact that the bolt mechanism, for example, the vault remains locked and an opening of the same is not possible. For opening the safe, it would be necessary that the lock bolt 3 with respect to the drawing plane after FIG. 1 could be pivoted down to the pivot point 6, because then the slider, not shown in the figures pushed past the safety lock 1 according to the invention and thus the vault could be opened. Such a wide pivoting of the lock bolt 3 is not possible due to the stop of the swivel body 7 on the pawl 15 of the locking member 13.

FIG. 3 shows the unlocked position of the lock 1. This unlocked position is based on the position of the release member 11 after FIG. 1 achieved in that, in a continued pivoting of the swivel body 7, the release member 11 is locked after a certain way of insertion into the release member 10 in its relative position relative to the release member 10 and thus in its relative position relative to the swivel body 7. In this locked position of the release member 11 is a further method of the same in the longitudinal direction 21 relative to the pivot body 7 not possible, so that at a continued pivoting movement of the pivoting body 7, which is supported on the abutment 12 of the locking member 13 sliding surface 18 of the release member 11 causes the locking member 13 with respect to the drawing plane to FIG. 3 or 4 is moved down. So if the release member 11 in his in FIG. 3 shown "open position" is, then by a pivoting of the pivot body 7 with respect to the plane of the drawing FIG. 3 Depressing the locking member 13 causes the consequence that in a continued pivoting movement of the pivot body 7 this can be passed past the pawl 15 of the locking member 13, which has a complete pivoting of the coupled to the pivot body 7 lock bolt 3 result, as in FIG. 4 shown.

To fix the release member 11 in its relative position relative to the release member 10 and the swivel body 7 is used according to a preferred embodiment, not shown in detail in the figures piezoelectric element. This piezoelectric element causes when energized, a holding, that is blocking the release member 11 relative to the release member 10 and the swivel body 7. A relative displacement movement of the release member 11 relative to the release member 10 is thus not possible with a powered piezo element. The release member 11 is virtually blocked in its movement in an energized piezoelectric element. On the other hand, as long as the piezoelectric element is de-energized, a free movement of the same relative to the release member 10 and the swivel body 7 in the longitudinal direction 21 is possible. An energization of the piezoelectric element for fixing the release member 11 in its "open position" is effected by a lock-own electronics, which triggers only after prior authorization by a person authorized for this purpose. For example, it may be provided that a code key input not shown in detail in the figures is formed on the lock. Only when the right code is entered by an authorized person, the lock electronics is "sharp", so that the release member 11 at a displacement in the longitudinal direction 21 with respect to the drawing plane to FIG. 1 automatically fixed in its relative position by energizing the piezo element.

If the security lock 1 according to the invention is used, for example, in a vault, opening of the vault can be effected by operating the bolting of the vault in the intended manner, a slide of this bolting mechanism acting on the lock bolt 3 of the security lock 1 according to the invention in the manner described above suppressed. The operator now has to unlock the safety lock 1, for example, by code entry, which then leads to a positional fixation of the release member 11 relative to the release member 10, for example by energizing a piezoelectric element. The slider, not shown in the figures of a bolt factory can then proceed with respect to the drawing plane of the figures further down, as a pivoting of the lock bolt 3 in the in FIG. 4 shown position is possible, which allows the slider to move past the security lock 1, which is accompanied by an opening of the vault.

LIST OF REFERENCE NUMBERS

1

Lock

2

shell

3

deadbolt

4

articulated arm

5

bolt

6

pivot point

7

pivoting body

8th

bolt

9

pivot point

10

release member

11

release member

12

abutment

13

locking member

14

pivot point

15

pawl

16

feather

17

abutment

18

sliding surface

19

arrow

20

arrow

21

longitudinal direction

F

force

Claims (13)

Electronic security lock, in particular safe lock, with a lock bolt (3), a swivel body (7) articulated thereon and a locking member (13) by means of which a swiveling movement of the swivel body (7) can be blocked,
marked by
a with the locking member (13) cooperating release member (11) which is slidably disposed on the swivel body (7) and fixable in its relative position to this. Lock according to claim 1,
characterized,
that the locking member (13) is a lever arm articulated at one end. Lock according to claim 1 or 2,
characterized,
that the blocking member (13) to the pivot member (7) cooperating pawl (15). Lock according to claim 1, 2 or 3,
characterized,
in that the blocking member (13) has a spring-loaded latching pawl side. Lock according to one of the preceding claims,
characterized,
that the release member (11) is a piston. Lock according to one of the preceding claims,
characterized,
that the release member (11) is designed spring-loaded. Lock according to one of the preceding claims,
characterized,
that the release member (11) is designed to be tapered on the blocking member side. Lock according to one of the preceding claims,
characterized,
in that the release member (11) has a bevelled sliding surface (18) on the blocking member side. Lock according to one of the preceding claims,
characterized,
in that the release member (11) interacts with an abutment (12) arranged on the blocking member (13) on the blocking member side. Lock according to one of the preceding claims,
characterized,
that the release member (11) is arranged linearly longitudinally displaceable on the swivel body (7). Lock according to one of the preceding claims,
characterized,
that the release member (11) by means of a fixing device in its relative position relative to the swivel body (7) is fixable. Lock according to claim 11,
characterized,
in that the fixing device has a clamping element. Lock according to claim 11 or 12,
characterized,
in that the fixing device has a piezo element.

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