EP0538419B1 - Lock system - Google Patents

Abstract

PCT No. PCT/DE92/00156 Sec. 371 Date Dec. 4, 1992 Sec. 102(e) Date Dec. 4, 1992 PCT Filed Feb. 27, 1992 PCT Pub. No. WO92/15760 PCT Pub. Date Sep. 17, 1992.The invention concerns a lock system for a door, wall, chest, safe or cupboard, etc. The lock system is covered by a cover plate and has a bolt or pin which is linked to a main lever, designed to rotate about a pivot bearing, and which operates in conjunction with a holder plate or bolt. Rotation of the main lever depends on the motion of a first magnetic block mounted on the cover plate. The main lever has at least one bore designed to accommodate at least one locking pin associated with a second magnetic block mounted on the cover plate. The second magnetic block is designed to unlock the lock by pulling the locking pins out of the bores.

Description

The invention relates to a locking system in a door, wall, chest, safe, cupboard or the like, which is covered by an outer plate, a locking bolt, gripper or the like, coupled to a main lever rotating about a pivot bearing, with a holding plate , a bar or the like. cooperates, wherein the rotation of the main lever depends on the movement of a magnetic block placed on the outer plate and interacting with a magnetic block arranged on the main lever and wherein the main lever has at least one bore for receiving at least one locking pin, another for unlocking by pulling out of the bore magnet block placed on the outer plate is assigned.

The protective function in the private and business sector is first and foremost a personal responsibility and therefore self-protection. The daily break-ins are growing alarmingly, despite the well-built and secured entrance doors, alarm systems or the like.

In this context, a series of cylinder and bolt locks are known as security devices, in which higher safety standards are taken into account. In all these locks, however, their position is visible from the outside, usually through the arrangement of corresponding pawls, keyholes or the like. Here the burglar knows immediately where to start in order to crack the corresponding lock.

Alarm systems are complex and also do not necessarily offer sufficient security. A magnetic security lock of the type mentioned above is known from DE-U-8 802 450. In this security lock, a movement magnet is connected to a movement linkage which is moved by a guide magnet. In a desired closed position, the movement linkage can be fixed by a locking pin which engages in a hole in the movement linkage. This guard locking is released from the outer wall of the hollow body by means of tension and pressure magnets.

The present invention has for its object to significantly improve the security of a locking system.

To achieve this object, the pivot bearing forms a center point for a plurality of circular paths on which the bore moves around the pivot bearing and on which the bores move around the pivot bearing and on which there are also a plurality of locking pins.

This is an invisible locking system, the position of which cannot be seen from the outside. This locking system can be located anywhere in a door leaf, but the door leaf is completely smooth when viewed from the outside. This makes it extremely difficult for the burglar to determine the position of the locking system. The same applies to the To determine the locking system. The same also applies to the arrangement of this locking system, for example in the wall of a chest, a corresponding cover being held in the closed position by the locking system. The list for which areas or for which furniture this locking system is to be used is only an example; the scope of the invention also includes other possible uses.

An opening or a closing process is triggered by attaching magnetic blocks to the outer plate, these magnetic blocks as magnetic keys perform separate functions. They interact with inner magnetic blocks.
The inner magnetic block that holds the locking pins can be called the technical heart of the entire system. The locking pins are mounted in this magnetic block so that they are pulled out of the holes in the main lever when the outer magnetic block is attached to the outer plate. This happens, for example, in that the locking pin is connected to a pull magnet. The locking pin is then returned to its closed position again with the aid of an appropriate compression spring.

However, there is also an indirect possibility of movement for the locking pin by connecting it to a pressure magnet via a rocker arm. The rocker arm has a pivot point approximately in the center, so that when the magnetic block is attached, the locking pin is pulled out of the corresponding hole when the pressure magnet is pushed away.

Since a locking system with a high number of locks is to be created, a plurality of locking pins are provided in the magnetic block. It is possible to vary the position of the individual locking pins relative to each other, to alternate with push and pull magnets or to provide dummy magnets. There in the outer magnetic block there must be a congruent number of magnets corresponding in number in order to pull all the safety pins, only one specific magnetic block matched to an arrangement of these safety pins. This allows the number of locks to be expanded extensively.

While one magnetic block takes over the unlocking of the locking pins, an opening or shooting movement of the main lever is brought about by means of the other magnetic block. For this purpose, there is another magnetic block on the main lever, in which pulling magnets are integrated. By moving the outer magnetic block on the outer plate above the inner magnetic block, the latter is taken along and the locking system is unlocked.

In an improved embodiment, however, no circular arc movement has to be carried out with the outer magnetic block on the outer plate, but a rotary movement is sufficient. For this purpose, the outer magnetic block is assigned an inner magnetic block on a rotary shaft, the rotational movement of which is transmitted via a rotary shaft to a spur gear, which in turn meshes with a toothed segment or a toothed rack on the main lever. This causes the main lever to pivot.

A second spur gear can also be provided on the rotary shaft, which cooperates with a second toothed segment or a second toothed rack on a second lever. By arranging the two tooth segments above and below their respective spur gear, pliers movement of the two levers can be carried out. This is particularly useful when the above Gripper is formed directly on the lever or the second lever.

A corresponding abutment can also be assigned to the gripper of one main lever, however During a closing movement, the gripper first passes through an eyelet in a bolt and then moves into a recess in the abutment. This results in a much better securing of the bolt on the gripper.

Furthermore, it is also contemplated that the bolt is indirectly connected to the main lever via a ratchet lever and a connecting lever. This embodiment should also be encompassed by the present invention. Furthermore, a symmetrical arrangement of two ratchet levers is also possible by means of a second connecting lever.

The present locking system according to the invention also includes a corresponding magnetic key, which has a special design, especially when the magnetic block is turned. For this purpose, a main body carries the outer magnetic block on one side for unlocking the locking pins. On the other side, a hole is formed in it, in which the other outer magnetic block can turn. To operate the locking system, the main body with the outer magnetic block for unlocking the locking pins is first placed on the outer plate, with its integrated magnets finding its corresponding pull magnets in the inner magnetic block and thus sticking to the outer plate. As a result, it simultaneously provides an indication of the position of the magnetic wheel through the position of the hole, so that now only the second outer magnetic block needs to be inserted into the hole, the locking system being unlocked or locked by a rotary movement of this magnetic block. This is a very advantageous embodiment of the invention.

An air cushion should remain between this magnetic block and the surface so that there are no scratches on the surface of the outer plate during the rotational movement of the outer magnetic block. This is caused by the fact that outer magnetic block, an insert is formed with an annular shoulder, the thickness of the insert being less than the thickness of the main body. The diameter of the insert is slightly smaller than the diameter of the hole.

This locking system according to the invention can also be used in wooden doors or wooden walls, which are never as conspicuous as steel doors or steel safes.

• Fig. 1 eine Draufsicht auf ein erfindungsgemäßes Schließsystem eingebaut in ein Türblatt;
• Fig. 2 einen Querschnitt durch das Schließsystem gem. Fig. 1 entlang Linie II - II;
• Fig. 3 eine Draufsicht auf ein weiteres Ausführungsbeispiel eines Teiles eines Schließsystems;
• Fig. 4 einen Längsschnitt durch das Teil des Schließsystems gem. Fig. 3 entlang Linie IV - IV;
• Fig. 5 einen Querschnitt durch das Teil eines Schließsystems gem. Fig. 3 entlang Linie V - V;
• Fig. 6 eine Draufsicht auf ein weiteres Ausführungsbeispiel eines erfindungsgemäßen Schließsystem;
• Fig. 7 einen Längschnitt durch das Schließsystem gem. Fig. 6 entlang Linie VII - VII;
• Fig. 8 einen Querschnitt durch das Schließsystem gem. Fig. 6 entlang Linie VIII - VIII;
• Fig. 9 eine Draufsicht auf ein weiteres Ausführungsbeispiel eines erfindungsgemäßen Schließsystems;
• Fig. 10 einen Längsschnitt durch das Schließsystem gem. Fig. 9 entlang Linie X - X;
• Fig. 11 eine Draufsicht auf einen erfindungsgemäßen Magnetschlüssel;
• Fig. 12 eine Seitenansicht des Magnetschlüssels gem. Fig. 11;
• Fig. 13 einen Querschnitt durch den Magnetschlüssel gem. Fig 11 entlang Linie XIII - XIII.

Further advantages, features and details of the invention result from the following description of preferred exemplary embodiments and from the drawing; this shows in

• Figure 1 is a plan view of a locking system according to the invention installed in a door leaf.
• Fig. 2 shows a cross section through the locking system. Fig. 1 along line II - II;
• 3 shows a plan view of a further exemplary embodiment of a part of a locking system;
• Fig. 4 shows a longitudinal section through the part of the locking system. Fig. 3 along line IV - IV;
• Fig. 5 shows a cross section through the part of a locking system. 3 along line V - V;
• 6 shows a plan view of a further exemplary embodiment of a locking system according to the invention;
• Fig. 7 shows a longitudinal section through the locking system. Fig. 6 along line VII - VII;
• Fig. 8 shows a cross section through the locking system. Fig. 6 along line VIII - VIII;
• 9 shows a plan view of a further exemplary embodiment of a locking system according to the invention;
• Fig. 10 shows a longitudinal section through the locking system. Fig. 9 along line X - X;
• 11 is a plan view of a magnetic key according to the invention;
• Fig. 12 is a side view of the magnetic key acc. Fig. 11;
• Fig. 13 shows a cross section through the magnetic key. 11 along line XIII - XIII.

A locking system R according to the invention has a lever arrangement which is mounted ready for installation on a carrier plate 3. The carrier plate 3 sits in a door leaf 32, its lever arrangement cooperating with a holding plate 14 in a door frame 33.

A main lever 1 is arranged on the carrier plate 3 and is connected to the carrier plate 3 via a rotary bearing 4. This main lever 1 can rotate about the pivot bearing 4 in the direction a. The pivot bearing 4 divides the main lever 1 into an upper lever arm 1 a and a lower lever arm 1 b. At the upper lever arm 1 a, a magnetic block 18 is provided, the function of which will be described later.

Between the magnetic block 18 and the rotary bearing 4 there is a pivot point 34 for a connecting lever 11, which connects the main lever 1 to a pawl 35 which is rotatably arranged about this rotary bearing 12 via a further rotary bearing 12 on the carrier plate 3. The connecting lever 11 forms a hinge point 13 with the pawl 35. When the pawl 35 rotates about the rotary bearing 12, a locking bolt 15 can move into and out of a locking groove 36 in the holding plate 14. The holding plate 14 is embedded in a door frame 33, as is not to be shown in more detail.

The entire carrier plate 3 with the main lever 1 and the pawl 35 is inserted into the door leaf 32 and by one Outer plate 32a is covered. As a result, the locking system R is not visible from the outside.
An inner magnet block 18 is provided on the upper lever arm la for moving the main lever 1. Corresponding pull magnets 19 are arranged in this magnetic block 18. A rotation of the main lever 1 about the rotary bearing 4 is effected by a magnetic block 25 indicated in FIG. 4, which is placed on the outer plate 32a above the magnetic block 18 and pivoted in the direction a. The main lever 1 then follows this movement. The movement is transmitted via the connecting lever 11 to the pawl 35, which is thus guided either into or out of the closing groove 36.

However, the opening or closing movement is only possible when locking pins 6 have moved out of their locking positions shown in FIG. 2. In this locking position, the pins 6 engage in bores 16 of the lower lever arm 1b of the main lever 1 and thus prevent this main lever 1 from rotating about the pivot bearing 4. In FIG. 2, a bearing bush 5 can also be seen, which corresponds to the pivot bearing designed as a pivot pin 4 is pushed on and which holds the main lever 1 at a desired distance from a second inner magnetic block 2, which also receives the locking pins 6. This magnetic block 2 is the "technical heart" of the present locking system R.

The locking pins 6 are connected to pull magnets 27 which can slide in blind holes 31 in the magnetic block 2. On the other hand, the blind hole 31 is a spring 8 pushed onto each locking pin 6, which is supported between the magnetic block 2 and an annular collar fixed to the locking pin 6. If a magnetic block 26 for unlocking is placed on the outer plate 32a, the pull magnets 27 are thereby attracted and the locking pins 6 move out of the bores 16 Main lever 1 released. The magnetic block 26 adheres through its magnetic effect to the outer leaf of the door or a corresponding container, so that it does not have to be held by the user. The user then only has to feel the magnetic block 18 with the other magnetic block 25 and pivot this magnetic block 25 in direction a, so that the main lever 1 can rotate about the rotary bearing 4.

The opening angle a of the upper lever arm la runs to the lower lever arm 1b via the rotary bearing 4 and forms the same angle a with respect to a central axis A, which angle is also determining for all intersection points which arise with the radii to the pivot point 4. These radii are also determining for the bores 16 in the main lever 1 and the corresponding recesses for the centering pins 6 in the magnet block 2 and also for the corresponding magnets 27.

An embodiment is selected in FIG. 5 in which pressure magnets 20 are used instead of pull magnets. The pressure magnet 20 is articulated via a rocker arm 22 to a locking pin 24, which in turn is closed by a recoil spring 21, i.e. retracted into the bore 16 is held. If the pressure magnet 20 is repelled via the appropriately designed magnetic block 26, it lifts the locking pin 24 out of the bore 16 via the rocker arm 22. This configuration offers a further security for the locking system R.

In the embodiment of a locking system R1 acc. Fig. 3, instead of four locking pins six locking pins 6 are indicated, which lie on corresponding circular paths around the pivot bearing 4.

In order to stop the rotary movement of the main lever 1 or to be able to fix the main lever 1 in a certain position, it is preferred to use one of the circular paths around the rotary bearing 4 around a locking hole 28 is provided. The locking pin that is also located on this circular arc around the rotary bearing 4 is caught in this locking bore 28. This position is secured against manual operation.

Furthermore, a recess 24a in the support plate 3 is indicated in FIG. 3, through which the rotary movement of the main lever 1 is limited. A closed position of the system is shown as a solid line, while an open position of the magnetic block 18 is indicated by dash-dotted lines.

The locking system works freely on the bearings 4 and 12 (balanced) without any significant friction losses; only the weight of the light metal levers can be moved with the magnetic effect.

Considerable numbers of locks are achieved with a single locking pin 6. If several locking pins 6 are used, the number of locks sometimes increases by over the million mark. Additional change variants can also be installed. For example, the diameter of the locking pins 6, 24 and the corresponding bores 16 can be designed differently. A large number of variants can also be formed in the upper magnet block 18 with regard to the magnets 19 used.

A change in the magnets in the inner magnetic blocks 2 and 18 also always requires a change in the outer magnetic blocks 25 and 26 for the functional fitting with the integrated individual magnets 19 and 27, respectively second pawl, not shown in detail, this arrangement then being symmetrical.

According to the further embodiment of a locking system R2 acc. 6 to 8, the main lever 1A is also designed as a pawl, with a gripper 40 being associated with it. In the locked position, this gripper 40 overlaps a corresponding latch 41.

In this exemplary embodiment, too, the main lever is rotatably arranged about a pivot bearing 4. The pivot bearing 4 sits on a carrier plate 3.

On the one hand of the rotary bearing 4, a magnetic block 2a with the corresponding locking pins 6 can be seen. On the other hand of the rotary bearing 4, a toothed segment 42A is placed on the main lever 1A. A toothing 43 of a spur gear 44A, which is supported on a rotary shaft 45, engages in the toothing of this toothed segment 42A. A further wheel 46 is seated on the rotating shaft 45, into which inner magnets 47 are embedded. If the magnetic block 25 is now placed on the outer plate 32a above the wheel 46 and rotated, the wheel 46 also rotates, so that a magnetic coupling is produced. The rotation of the wheel 46 is transmitted via the rotary shaft 45 to the spur gear 44A, the toothing 43 of which rolls the toothed segment 42A and pivots the lever 1A.

In a preferred embodiment, a second closing lever 1B, on which a further toothed segment 42B is placed, is also arranged rotatably on the rotary bearing 4. This toothed segment 42B interacts with a further spur gear 44B in the same way as the spur gear 44A with the toothed segment 42A. This spur gear 44B is also arranged on the same rotary shaft 45.

However, since the toothed segment 42B undershoots its spur gear 44B and the toothed segment 42A overlaps its spur gear 44A, a rotation of the rotary shaft 45 takes place Spread apart of main lever 1A and closing lever 1B, as indicated above in FIG. 6.

An opening movement of the levers 1A and 1B is otherwise limited by a slide shoe 48, which forms a stop shoulder 49.

Incidentally, this locking system R2 according to the invention is not inserted into a door but into a chest, the outer plate 32a forming a front wall of this chest. This front wall is overlapped by a cover 50, on which the bolt 41 is also fixed by means of a fastening bracket 51.

In the further embodiment of a locking system R3 acc. 9 and 10, in turn, only one main lever 1 is provided. After pulling the corresponding locking pins 6, this main lever 1 rotates around the rotary bearing 4, the rotary movement being brought about by a magnetic coupling as described for FIGS. 6 to 8. A rack 52 is assigned to the corresponding spur gear 44 here.

It is of considerable importance that the main lever 1 is assigned a hook-shaped gripper 40 which interacts with an abutment 53. When closing, the gripper 40 passes through an eyelet 54 in the bolt 41a and engages in a recess 55 in the abutment 53. As a result, the gripper 40 is secured in a particularly good manner on train. The latch 41a cannot slide off the gripper 40.

The abutment 53 can also have a notch 56, indicated by dashed lines, into which the main lever 1 is inserted and guided when it is closed. A further locking pin 57 is also provided at the end of the main lever 1A opposite the gripper 40 to be defined, which engages in a corresponding locking recess 58 in a counter bearing 59 in the closed position.

A magnetic key M according to the invention. Figures 11-13 can be made of wood, plastic or a metal. This magnetic key M essentially has a main body 60 which carries the magnetic block 26 at one end. At the other end, a hole 61 is formed in the main body 60, into which the magnetic block 25 can be inserted, this magnetic block 25 rotating in the hole 61 and transmitting its rotary movement to the wheel 46. This magnetic key is particularly suitable for the embodiment of the locking system R2 and R3.

The magnetic block 25 essentially consists of a rotary housing 62, in which a four-pole rotary magnet 63 is inserted.

12 and 13 it can be seen that the rotary housing 62 forms a circular insert 65 with the formation of an annular shoulder 64, the diameter d of which is slightly less than the diameter d1 of the hole 61. Furthermore, the thickness e is somewhat less than the thickness f of the Main body 60, so that after inserting the magnetic block 25, the lower surface of the insert 65 includes an air gap 66 with, for example, the surface of the outer plate 32a. This ensures that the surface of the outer plate 32a is not damaged when the magnetic block is rotated, so that it is also not possible to see at which point the magnetic block 25 has to be applied in order to rotate the wheel 44. This is particularly important when using the locking system in security products such as safes, cupboards, safes, security doors or the like.

According to the system, a plurality of magnets 67 and also dummy magnets can be used in the magnetic block 26, the interaction also also relating to the system "North / South" applies. As soon as the magnetic block 26 and thus also the main body 60 has detected the position of the magnetic block 2, the main body 60 remains adhering to the surface of an outer plate 32a, so that the magnetic block 25 can then also be rotated with one hand.

Claims (18)

1. Lock system in a door, wall, chest, safe, cupboard or the like, which is covered by an outer plate (32a), wherein a locking bolt (15), gripping device (40) or the like, coupled to a main lever (1, 1A) which rotates about a rotary bearing (4), co-operates with a retaining plate (17), a bolt (41) or the like, wherein the rotation of the main lever (1, 1A) is dependent on the movement of a magnetic block (25), which is placed over the outer plate (32a) and co-operates with a magnetic block (18) disposed on the main lever (1, 1A), and wherein the main lever (1, 1A) comprises at least one bore (16) for the accommodation of at least one securing pin (6, 24), which has associated therewith an additional magnetic block (26), which is placed over the outer plate (32a), for unlocking purposes through withdrawal from the bore (16), characterised in that the rotary bearing (4) forms a centre for a plurality of circular paths, over which the bore (16) moves about the rotary bearing (4) and on which a plurality of securing pins (6) also lie.
2. Lock system according to claim 1, characterised in that, on at least one circular path for a securing pin (6), a locking bore (28) is additionally provided for securing the main lever (1, 1A) in a position other than the locking position.
3. Lock system according to claim 1 or 2, characterised in that both the rotary bearing (4) and also pull and/or push magnets (27, 20) are incorporated in the magnetic block (2) by securing pins (24).
4. Lock system according to claim 3, characterised in that an outer magnetic block (26) is associated with the incorporated pull and/or push magnets (27, 20), in which block a congruent and corresponding number of magnets is provided, so that the number of withdrawing magnets is exceeded.
5. Lock system according to at least one of claims 1 to 4, characterised in that at least two pull magnets (19) are incorporated in the magnetic block (18).
6. Lock system according to claim 5, characterised in that congruent pull magnets are disposed in the outer magnetic block (25) in the same number as are provided in the inner magnetic block (18).
7. Lock system according to at least one of claims 1 - 6, characterised in that a toothed segment (42A), a toothed rod (52) or the like lies securely on the main lever (1A) and co-operates with a spur gear (44B) which, in turn, sits on a rotary shaft (45) together with a magnetic wheel (46), so that the magnetic wheel (46) co-operates with the magnetic block (25) in its rotary movement.
8. Lock system according to claim 7, characterised in that a second spur gear (44B) is also disposed on the rotary shaft (45) and co-operates with a toothed segment (42B), a toothed rod or the like on a second lever (1B).
9. Lock system according to claim 8, characterised in that one toothed segment (42A or 42B) engages over its spur gear (44A or respectively 44B) and the other engages beneath its spur gear.
10. Lock system according to at least one of claims 1 - 9, characterised in that a gripping device (40) is configured to fit directly on the main lever (1A).
11. Lock system according to claim 10, characterised in that the gripping devices (40) form a gripping clamp on main lever (1A) and lever (1B).
12. Lock system according to claim 10, characterised in that an abutment (53) is associated with the gripping device (40), into which abutment the gripping device (40) travels after passing through a lug (54) of a bolt (41a).
13. Lock system according to claim 12, characterised in that a locking pin (57) is disposed opposite the gripping device (40) on the main lever (1A) and travels into a bolt recess (58).
14. Lock system according to at least one of claims 1 - 13, characterised in that the magnetic block (25) rotates in an opening (21) in a magnetic key (M).
15. Lock system according to claim 14, characterised in that the opening (21) is provided in a main body (60), on which the magnetic block (26) is also situated.
16. Lock system according to claim 14 or 15, characterised in that the magnetic block (25) forms an insert (65) after an annular shoulder (64), the diameter (d) of said insert being slightly smaller than the diameter (dl) of the opening (61).
17. Lock system according to claim 16, characterised in that the insert (65) has a thickness (e) which is smaller than the thickness (f) of the main body (60).
18. Lock system according to one of claims 15 - 17, characterised in that magnets (67) - even magnets of various sizes and having their "north/south" interaction as well as dummy magnets - are inserted in the magnetic block (26) in such a way that the magnetic key (M) lies in each case securely on the outer plate (32a).

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