EP0582787B1 - Safety lock for containers for valuable goods - Google Patents

Abstract

The invention relates to a safety lock for security containers, in which, before the blocking of the lock bolt is finally cancelled, the tumbler plates are blocked against a pivoting movement via a blocking tumbler plate, so that it is no longer possible to manipulate the tumbler plates. <IMAGE>

Description

The invention relates to a security lock for security containers with a lock bolt arranged to be longitudinally displaceably guided in a lock housing, in particular by a wrench, to which a locking mechanism is assigned, which has a plurality of tumbler plates arranged parallel to one another and connected to the housing in one piece by a common, orthogonal to the lock bolt Axis through the different stages of the beard key are pivotable (rotating tumbler), the tumbler plates on the common pivot axis facing away from each z. B. have the same size, end-opening, slot-shaped tour channel, in each of which engages in one piece with the lock bolt, orthogonal to the lock bolt arranged tour pin in the unlocked position, the tour channels successively Tumbler plates are offset from one another depending on the levels of the key bit and the tumbler plates have control curves for the beard steps of the beard key or the like, in which the beard steps of the beard key or the like engage in such a way that by turning the beard key or the like, all of them Tour channels can be brought into a congruent position for the purpose of entry of the tour pin, whereupon the lock bolt can be moved longitudinally through the beard steps of the beard key or the like.

State of the art

In the case of security locks for safes or other security containers, the bolt is normally locked with a beard step of e.g. B. moves as a wrench.

In addition, in the case of security locks with tumblers, the other beard levels of the beard key move the tumbler plates, which block the bolt in its locked position in the rest position or when actuated with a wrong key.

In order to move a bolt in the open position, the key must first be turned through an initial angle so that the beard steps of the beard key can move the tumbler plates in the open position. The control curve of the bolt, in which the beard step of the beard key engages, which moves the bolt, is designed such that the bolt is not yet moved during the rotation of the key by an initial angle.

After turning the key more than the beginning of the angle, all tumbler plates are in the open position at the latest, provided the correct key is used. The bolt can then be moved in a longitudinally displaceable manner by a further rotation of the bit key in the open position.

Corresponding to the key that is to open the lock, the tumbler plates are arranged in the lock according to their position and coding.

The lock bolt has a locking element referred to as a "touring pin", which is connected in one piece to the lock bolt and opposite the front edges (locking edge) of the tumbler plates in the lock. To open the To enable the lock, each tumbler plate has a slot-shaped recess in the front edge, which is referred to as a "tour channel" and which is so large that the tour pin can be inserted into the tour channel with little play.

The tour channel of each tumbler plate is positioned by the beard steps of the key belonging to the lock via a control curve on each tumbler plate so that the tour pin and the tour channel lie opposite one another. In this position the lock bolt can be brought into the open position with the tour pen. If the key is incorrect, the tour pin hits the locking edge of the relevant tumbler plate.

In order to open a lock without authorization without a suitable key, auxiliary tools are used to move the tumbler plates into the open position. By "scanning" an attempt is made to find the position of the tumbler plates in which the tour pin can be inserted into the respective tour channel of the respective tumbler plate that is being scanned, that is to say the tour pin and the tour channel lie opposite one another.

It is known that such an unauthorized opening method is made considerably more difficult if the locking edges of the tumbler plates are provided with so-called "deceptive catches", also called "wrong tours". Such deception grids simulate a tour channel, but only allow the tour pin to penetrate the tumbler a small fraction of the way as is possible with the correct tour channel.

It is possible with a great deal of effort, at least in theory it is conceivable to differentiate the tour channel from the deceptive stops when scanning and thus to identify a tumbler.

task

The invention has for its object to turn off the "scanning" in a security lock of the required type and thereby significantly increase the security of the lock.

solution

The object is achieved by the features set out in claim 1 or 2 .

Some advantages

In the package of tumbler plates that form the locking mechanism, e.g. B. a tumbler plate, the front edge of which is somewhat closer to the tour pin than with the other tumbler plates. This tumbler plate, which is slightly closer to the tour pin, is defined as a "locking tumbler plate". A contact between the tour pin and one of the other tumbler plates is only possible if this blocking tumbler plate is in the open position. This locking tumbler plate controls a locking mechanism such that the other tumbler plates are blocked just before the locking tumbler plate is in the open position. It is then no longer possible to scan the other tumbler plates using the tour pen. The invention is applicable if it is ensured that the other tumbler plates can be used with the correct one (suitable) key can be swiveled into the open position before blocking. All tumbler plates except for the locking tumbler plate can be provided on the same end face facing away from the center of pivoting with deceptive catches which are of identical design and lie in the same angular pattern.

Further inventive configurations

Claims 3 to 5 describe a way to block the tumbler plates. For this purpose, in a preferred embodiment of the invention, an angle lever is provided, which is controlled by a projection of the locking tumbler plate, such that the angle lever with a locking nose shortly before the locking tumbler plate is pivoted into the open position, engages in a locking catch of the other tumbler plates and these locking tumbler plates against blocking pivoting or movement. This screening can be similar to the illusion screening on the blocking edge of the Tumbler plates should be formed. However, the locking grid should be located at a different location on the tumblers, such as possibly a deception grid. The advantage of this locking grid over the illusion grid is that it can be uniform and has no palpable differences, such as z. B. is possible through the tour channel in the deception grid in other constructions.

According to claim 6 , the angle lever is arranged between two stops. This means that the angle lever cannot be pushed sideways by unauthorized persons.

According to claim 7 , in addition to the longitudinal center axis of the tour pin on the housing base orthogonally projecting from this and connected in one piece to the housing base, a blocking pin is arranged which can enter a side slot, the slot opening into a window through which the tour pin extends. When the locking tumbler plate and tumbler plates are pivoted, this locking pin swivels into the lateral slot and thereby also prevents axial movement of the locking tumbler plate and the tumbler plates. As a result, it is not possible to use the tumbler plates and thus the Manipulation to move the tour pin in the opening direction.

Claim 8 describes an embodiment in which the locking tumbler plate is provided with a lateral, outwardly opening slot which opens into the recess for the control curves of the tumbler plate. In this way, a resilient area is created so that unauthorized persons cannot exert any deforming force on the angle lever via the locking tumbler plate. Rather, the tumbler plate springs back into its original position immediately. Pin 13 assumes a stop function here so that the resilient area of the locking tumbler cannot be overloaded. In the event of greater use of force, the resilient area of the locking tumbler bends around pin 13. This manipulation has little effect in the front area of the locking tumbler.

Of course, a security lock according to the invention for security containers can be provided with any number of tumbler plates, preferably one, but possibly also several locking tumbler plates.

In addition, it is possible to provide at least the tumbler plates, if necessary, but also the blocking tumbler plates in addition to the locking catches on the front side with deceptive catches.

Furthermore, it is possible to form the locking tumbler plate or plates and the tumbler plates symmetrically with respect to their longitudinal center axis or asymmetrically. Finally, it is possible to use symmetrical and asymmetrical locking tumbler plates and tumbler plates in one and the same locking mechanism.

In a preferred embodiment, however, a locking mechanism consists only of a locking tumbler plate, which is arranged below, that is, on the lock bottom, and z. B. from more than five tumbler plates.

Locking tumbler plates and tumbler plates can be made of brass, while the lever and the lock housing as well as the lock bolt itself can be made of steel.

Fig. 1

ein erfindungegemäßes Sicherheitsschloß in der Draufsicht, wobei aus Gründen der Vereinfachung und zur besseren Kenntlichmachung die Sperrzuhaltungsplatte oben und lediglich eine Zuhaltungsplatte darunter angeordnet wurde, und zwar in Sperrstellung des Sicherheitsschlosses;

Fig. 2

das aus Fig. 1 ersichtliche Sicherheitsschloß, wobei der Bartschlüssel um einen gewissen Schwenkwinkel gedreht worden ist und die Sperrklinke durch die Sperrzuhaltungsplatte bereits die Zuhaltungsplatte gegen Weiterverschwenkung blockiert hat, sich das Schloß allerdings immer noch im verschlossenen Zustand befindet, da die Sperrzuhaltungsplatte sich noch nicht in Öffnungsstellung befindet;

Fig. 3

das aus den Figuren 1 und 2 ersichtliche Sicherheitsschloß, wobei der Bartschlüssel gegenüber Fig. 2 um einen Winkelbetrag weitergedreht worden ist und die Sperrzuhaltungsplatte ebenfalls in Offenstellung geschwenkt worden ist, sich der Tourstift also kurz vor dem Eintritt in den Tourkanal befindet;

Fig. 4

durch unbefugte Manipulation an dem Sicherheitsschloß gemäß Fig. 1 und 2 verschwenkte Sperrhaltungszuhaltungsplatte (auf Offenstellung), wobei allerdings die Zuhaltungsplatte den Tourstift weiterhin gegen Axialverschiebung blockiert und

Fig. 5

zeigt die erfindungsgemäße Anwendung bei einem Sicherheitsschloß mit sogenannten steigenden Zuhaltungen in der Darstellungsform wie unter Fig. 2 beschrieben.

In the drawing, the invention is illustrated - partly schematically - using an exemplary embodiment. Show it:

Fig. 1

a security lock according to the invention in plan view, wherein for reasons of simplification and for better identification, the locking tumbler plate was arranged above and only one tumbler plate below, in the locked position of the security lock;

Fig. 2

The security lock shown in Fig. 1, wherein the beard key has been rotated by a certain pivoting angle and the pawl has already blocked the tumbler plate against further pivoting due to the locking tumbler plate, but the lock is still in the closed state since the locking tumbler plate is not yet in Open position;

Fig. 3

the security lock shown in Figures 1 and 2, the beard key compared to Fig. 2 has been rotated by an angle is and the locking tumbler plate has also been pivoted into the open position, so the tour pin is shortly before entering the tour channel;

Fig. 4

1 and 2 pivoted locking tumbler plate (to open position) by unauthorized manipulation of the security lock, however, the tumbler plate still blocks the touring pin against axial displacement and

Fig. 5

shows the application according to the invention in a security lock with so-called increasing tumblers in the form of representation as described under Fig. 2.

In the drawing, the reference numeral 1 denotes a lock bolt, which in all of the embodiments shown in the drawing is arranged longitudinally displaceably in a one-piece lock housing 2 made of steel. The castle ceiling is not shown for reasons of simplification.

The lock bolt 1 is fixed by spaced housing Pins 3 and 4 guided.

The reference numerals 5 and 6 denote screw bushings which extend orthogonally to the lock housing base and are integrally connected thereto and to which the lock cover, not shown, is detachably connected by screws, also not shown.

The screw bushing 6 is arranged with its center on the longitudinal center axis 7 of the lock bolt 1 and serves as a bearing and pivot axis for a locking mechanism 8 consisting of a plurality of plane-parallel arranged tumbler plates and preferably a locking tumbler plate 8. For reasons of simplification, only one tumbler plate was shown in the drawing 9 and a locking tumbler plate 10 arranged above it. In a specifically designed security lock, the locking mechanism 8 usually consists of a locking tumbler plate 10 and several, for. B. seven tumbler plates 9, which are all arranged plane-parallel to each other and the screw bush 6 as use common swivel axis. For this purpose, all tumbler plates 9 and the locking tumbler plate 10 each have a bore with which they are pushed over the screw bushing 7 with a slight play, that is to say they can easily be pivoted about the screw bushing 6.

In addition, the locking tumbler plate 10 can face a concrete lock at the bottom, ie the inside of the lock housing base, while the tumbler plates are arranged above.

The design and arrangement of the locking mechanism 8 is essentially known and need not be described in detail.

The reference numeral 11 designates a locking angle enlarging lever as described in detail in the German utility model G 92 03 393.8 which goes back to the applicant and which is positively coupled to the lock bolt 1 and via a longitudinal slot 12 and an orthogonal projection from the housing base, in one piece with it connected pin 13 forms a backdrop guide. However, pin 13 still performs a stop function here.

The reference numeral 14 denotes a double bit of a beard key, not shown in detail.

The reference numerals 15 and 16 (FIG. 4) denote tour channels which open out on the end faces 18 and 19 opposite a tour pin 17. All tumbler plates and all locking tumbler plates 10 have such slit-shaped tour channels 15 and 16, which are all of the same size and with a suitable beard key through the beard steps of the double bit 14 in the z. B. from Fig. 3 apparent position to each other, in which the tour pin 17 is able to slide into the topped channels 15 and 16 by corresponding longitudinal displacement of the lock bolt 1 by means of the key.

The width of the tour pin 17 is slightly smaller than the width of each tour channel 15 or 16, so that the tour pin 17 can slide easily into the tour channels 15, 16 when the lock bolt 1 is moved axially by a suitable wrench 14. The tour pin 17 is arranged orthogonally to the lock bolt 1 and connected to it in one piece.

The reference numeral 20 denotes recesses in the tumbler plates 9 and the locking tumbler plates 10, which have control curves for the different levels of the key bit 14.

In this approximately central recess 20 of the locking plate 10 opens from above (seen in the drawing plane) an outwardly opening, open slot 21, which is intended to prevent bending of the pawl 23 by unauthorized manipulation. A kind of spring effect is thereby achieved, so that the locking tumbler plate 10 springs back when an attempt is made to bend.

A control projection 22 is connected on one side to the locking tumbler plate 10 on its end face 18, with which a pawl 23 designed here as an angle lever can be controlled, which pawl can be pivoted to a limited extent with an eye 24 on the screw bushing 5.

The pawl 23 has two arms 25 and 26, which are arranged at right angles to one another in the illustrated embodiment, but can also have a different shape. The arms 25 and 26 are material here designed in one piece with the eye 24, the eye 24 having a bore, not shown in detail, with which the pawl 23 is pivotally mounted on the screw bushing 5.

The pivoting range of the arm 26 is limited by two stops 27 and 28 which extend parallel to one another and orthogonally to the lock bottom.

With the arm 25, a locking lug 29 is integrally connected, which protrudes by about 90 degrees to the longitudinal center axis of the arm 25 in the direction of the locking mechanism 8 and is designed such that it can engage in a locking mechanism 30. The locking mechanism 30 is arranged on all tumbler plates 9, specifically on the front side facing the arm 25, and is of the same size and shape in all tumbler plates 9. The locking lug 29 extends over the entire height of the locking mechanism 8 consisting of the tumbler plates 9 and the locking tumbler plate 10. In this way it is possible for the locking lug 29 to be able to block all tumbler plates 9 together and simultaneously against a pivoting movement around the screw bushing 6. The locking nose 29 can be conically tapered in the direction of the locking catch 30 in order to facilitate entry and thus a positive connection when blocking.

The reference numeral 31 designates a pin which is connected in one piece to the lock case 1 and projects orthogonally with its longitudinal axis therefrom and whose length is dimensioned so large that it corresponds at least to the thickness of the entire locking mechanism 8.

All tumbler plates 9 and the locking tumbler plate 10 have recesses 32 through which the tour pin 17 passes, which is also so long that it corresponds to at least the total thickness of the locking mechanism 8 from all tumbler plates 9 and at least one locking tumbler plate 10.

The pin 31 is arranged next to the tour pin 17, the tour pin 17 lying in the embodiment shown on the longitudinal center axis 7 of the lock bolt 1.

In the recess 32 opens a slot 33 laterally, which is so wide that the pin 31 can fit into it when the tumbler plates 9 are pivoted.

The radius that delimits the end face 18 of the locking tumbler plate 10 is somewhat larger than the radius that delimits the end face 19 of the tumbler plate 9. This has the following consequences:

If a security lock according to the invention shown in the drawing is opened with a suitable key 14, the beard steps control the tumbler plates 9 via the control cams in such a position that the tour channels 15 lie congruently one above the other, that is to say the tour pin 17 can slide axially into the tour channels 15.

Shortly before the lock has been fully opened, the locking lug 29 enters the locking catch 30 of the tumbler plates 9 in a form-fitting manner. In this position, the locking mechanism 30 of the tumbler plates 9 is congruently pivoted one above the other in such a way that the locking nose 29 blocks all tumbler plates 9, ie the entire package from all tumbler plates 9, against further pivoting. This is done in that through the beard steps on the control projection 22 of the locking tumbler plate 10 the arm 26 of the pawl 23 is pivoted and thus the arm 25 is pivoted in the blocking position. The design and arrangement has been made so that the locking tumbler plate 10 is not yet fully open in this pivoted position (Fig. 2). Only a further turning of the appropriate key 14 (FIG. 3) brings the locking tumbler plate 10 into an angular position that its tour channel 15 is also arranged in a congruent position with the tour channels 16 of the tumbler plates 9. Only then can the tour pin 17 slide into the tour channels 15 and 16, which are now in alignment with one another, that is to say the lock bolt 1 can be moved axially into the open position.

If an attempt is made to open the locking mechanism 8 with a bad key 14, the end faces 19 of the tumbler plate 9 prevent the bolt 7 from being axially displaceable. Manipulation with intrusion tools is not possible because the tumbler plates 9 are blocked by the locking lug 29 of the pawl 23 and can no longer be pivoted. The pawl 23 is loaded by a spring 34 against the locking direction.

Bending of the pawl 23 is also not possible because this is prevented by the stops 27 and 28.

As can be seen, the locking catch 30 can be designed uniformly and have no palpable differences (all teeth and all gaps are of the same size and of the same shape).

If this is desired, all of the tumbler plates 9 and / or the blocking tumbler plate 10, which can be of the same or different design, can be attached to the end faces 18 and 19 opposite the tour pin 17.

Is z. B. with a burglar tool the locking tumbler plate 10 (Fig. 4) pivoted in the open position, the end faces 19 of all other or several tumbler plates 9 still prevent an axial displacement of the lock bolt 1 because the tour pin 17 abuts against the end faces 19 of the tumbler plates 9. A pivoting of the tumbler plates 9 is not possible because the locking lug 29 has engaged in the locking catch 30 and prevents pivoting of the tumbler plates 9.

5 describes the application of the inventive concept to so-called increasing tumblers. The same reference numerals have been used for parts with the same function as in the previously described embodiments. In contrast to the previously described embodiments, the locking tumbler plate 10 is located below the other tumbler plates. In this case too, the locking tumbler plate 10 controls a pawl 23 which, as in the other embodiments, is loaded against the restoring force of a spring 34. The locking tumbler plate 10 is provided on its upper left end face, as seen in the drawing plane, with a locking catch 30 into which the locking lug 29 of the pawl 23 can engage. In this embodiment, too, the shifting of the tumbler plates 9 is prevented by unauthorized manipulation, as described in connection with the above embodiment.

Reference list

1

Lock bolt

2nd

Lock housing

3rd

Spigot, more fixed to the housing

4th

Spigot, more fixed to the housing

5

Screw bushing

6

Screw bushing

7

Longitudinal center axis

8th

Locking mechanism

9

Tumbler plate

10th

Locking tumbler plate

11

Closing angle enlarging lever

12th

Longitudinal slot

13

pen

14

Double bit key, beard key

15

Tour channel

16

Tour channel

17th

Tour pin

18th

Face

19th

Face

20th

Recess

21

slot

22

Tax advantage

23

Pawl

24th

eye

25th

poor

26

poor

27

attack

28

attack

29

Locking nose

30th

Locking mechanism

31

pen

32

Recess

33

slot

34

feather

Claims (8)

1. Safety lock for container for valuable goods with a bolt (1) arranged in a lock case (2) and guided so as to permit longitudinal movement by a key, in particular a bit key (14), to which is assigned a locking mechanism (8) which incorporates several tumbler plates (9) arranged plane-parallel to one another, which permit swivel movement about a common swivel pin (6) running orthogonally to the bolt (1) and joined in one piece to the lock case (2), where the tumbler plates (9) each incorporate on the end face opposite the common swivel pin (6) a slot-shaped rotary passage (15, 16) (e.g. of equal size) leading out, in each of which a rotary pin (17) arranged orthogonally to the bolt (1) and joined in one piece engages in released position, where the rotary passages (15, 16) of successive tumbler plates (9) are offset in relation to one another as a function of the steps of the key bit and where the tumbler plates (9) incorporate cams or the like for the bit steps of the bit key (14), into which the bit steps of the bit key (14) such that as a result of turning the bit key (14), all the rotary passages (15, 16) can be brought into alignment for entry of the rotary pin (17), whereupon the bolt (1) can be moved longitudinally through the key steps of the bit key (14), characterized by the fact that

   a) at least one of the tumbler plates is formed by a locking tumbler plate (10), where the locking tumbler plate (10) possesses an end face (18) which is closer to the locking edge of the rotary pin (17) than the end faces of the other tumbler plates (9);

   b) the locking tumbler plate (10) controls a locking mechanism (22, 23, 26, 25, 29) such that the other tumbler plates (9) are locked to prevent swivel movement before the locking tumbler plate (10) is in its open position.
2. Safety lock for container for valuable goods with a bolt (1) arranged in a lock case (2) and guided so as to permit longitudinal movement by a key, in particular a bit key (14), to which is assigned a locking mechanism (8) which incorporates several tumbler plates (9) arranged plane-parallel to one another, where in each case the tumbler plates (9) guided so as to permit movement incorporate on the same end face a slot-shaped rotary passage (15, 16) (e.g. of equal size) leading out for the entry of a rotary pin (17) joined orthogonally in one piece to the bolt (1), where the rotary passages (15, 16) of the superimposed tumbler plates (9) are offset as a function of the steps of the key bit and where the tumbler plates (9) incorporate cams for the bit steps of the bit key (14) or the like, in which the bit steps of the bit key (14) engage such that as a result of turning the bit key (14), all the rotary passages (15, 16) can be brought into alignment for entry of the rotary pin (17), whereupon the bolt (1) can be moved longitudinally through the key steps of the bit key (14), characterized by the fact that

   a) at least one of the tumbler plates is formed by a locking tumbler plate (10), where the locking tumbler plate (10) possesses an end face (19) which is closer to the locking edge of the rotary pin (17) than the end faces of the other tumbler plates (9);

   b) the locking tumbler plate (10) controls a locking mechanism (23) such that the other tumbler plates (9) are locked in either open or closed position to prevent swivel movement before the locking tumbler plate (10) is in its open position.
3. Safety lock in accordance with Claim 1 or 2, characterized by the fact that all the tumbler plates (9) are provided on their end face opposite the swivel pin (6) with a locking notch (30) which acts in combination with the locking mechanism.
4. Safety lock in accordance with one of Claims 1 to 3, characterized by the fact that the locking mechanism incorporates a pawl (23) which is controlled by a control projection (22) of the locking tumbler plate (10).
5. Safety lock in accordance with Claim 3, characterized by the fact that the locking mechanism incorporates an angle lever (23), both of whose arms (25, 26) are joined in one piece by an eye (24), where the eye is swivellable by means of a hole on a screw bush (5) running orthogonally to the lock case bottom, as swivel pin by a limited degree, where a locking lug (29) is joined to one lever (25), this lug facing the locking notch (30) and extends over the entire height of all the tumbler plates (10) and is able to engage in recesses of the locking notch (30) of the tumbler plates (10), whilst to the other lever (26) is joined a lug-shaped projection which acts in conjunction with the control projection (22) of the tumbler plate (9).
6. Safety lock in accordance with Claim 5, characterized by the fact that the other lever (26) is arranged between two stops (27, 28) so as to be swivellable by a limited amount.
7. Safety lock in accordance with Claim 6, characterized by the fact that the tumbler plates (9) are each provided in the region of the locking notch (30) with a recess (32), where all the recesses are preferably of the same size and on one side incorporate a slot (33) issuing into the recess (32), which recess stands away from the lock case orthogonally and acts together with this pin joined in one piece, where the pin (31) extends at least over the height of all the tumbler plates (9) and during swivelling of the tumbler plates (9) through a certain angular range, engages positively in this slot (9).
8. Safety lock in accordance with one of Claims 1 to 7, with cams of the tumblers which are arranged on recesses (20) and engages in one of the bit keys (14), characterized by the fact that into the recesses (20) of the tumbler plate (9) issues an outward issuing longitudinal slot, where the longitudinal slot (21) is arranged on the side of the recesses (20) opposite the swivel pin (7).

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