WO1982004459A1

WO1982004459A1 - Lock cylinder with integrated electromagnetic locking

Info

Publication number: WO1982004459A1
Application number: PCT/CH1982/000078
Authority: WO
Inventors: Kaba Ag Bauer
Original assignee: Kleinhaeny Arno; Gutmann Walter
Priority date: 1981-06-17
Filing date: 1982-06-15
Publication date: 1982-12-23
Also published as: AT386641B; DE3248830D2; GB2112055A; GB8302631D0; JPH0227506B2; GB2112055B; FR2508085A1; FR2508085B1; JPS58500999A; US4603564A; CH653400A5; ATA903282A

Abstract

A magnetic bolt (20) has a movable and electromagnetically operated blocking element (28) which blocks or releases the rotor (3) of the cylinder (10) in co-operation with a blocking member (37) arranged on the rotor according as to whether the blocking element (28) is in a blocking notch (38) or in a free travel groove (35) of the blocking member (37), independently of the mechanical locking (4) of the rotor (3). The magnetic bolt (20) is arranged in the stator (5) of the cylinder and generates an additional electromagnetic locking upon energizing the magnetic coil (23).

Description

Lock cylinder with integrated electromagnetic lock

The invention relates to a security lock cylinder with a mechanical tumbler and an electromagnetic tumbler arranged in the cylinder, the mechanical tumblers being unlocked by the associated key and the electromagnetic but by an external actuation.

Combinations are known in which a mechanical lock, which is actuated by mechanical means, interacts with a mechanical lock, which is actuated by electromagnetic means. It is customary to use the mechanical means to open a lock on site, for example by means of a door knob, door latch, but also a key, etc., and to actuate the same lock from a remote position using the electromagnetic means.

The independence of the position of the operating location for manipulation of electromagnetic means allows, for example, central monitoring of partially remote closings, this monitoring, for example,

OMPI dependent fully automatically, by intervention of an operator, also by imposing condition specifications, etc.

As a rule, it is an additional, i.e. in addition to the mechanical means, a closing means that is used in a conjunctive or disjunctive manner. These AND and OR options expand the use of closures, particularly in an organizational manner. This is shown, for example, by the truth table to be applied using the example of a door:

Mech. El.mag.

0 0 door is open to everyone

1 0 only have key owners

access

0 1 Access is granted by the control center

1 1 Central gives access to certain

Key owners free

The two alternative options, key or head office, expand the organization option. The conjunctive possibility, keys and headquarters increase security.

The advantages of such combined closings are described, for example, in DΞ-OS 2 325 566.

C turned. The mechanical means for actuating the lock, which is a door lock, are rotary knobs arranged on the door for pushing a bolt. The electromagnetic means actuate an additional bolt which, depending on the position, blocks or releases the main bolt. Furthermore, a security cylinder is associated with the actuation or triggering of the electromagnetically actuated additional bolt, and a security device is in turn associated with this. The electromagnetic part is accommodated in the door frame, as is the security cylinder which triggers the electromagnetics. The security cylinder actuates the electromagnetic lock exclusively, with the help of a specially designed ragged key, which contains the information for the reader arranged in the back of the key. The electromagnetic triggering can also take place disjunctively, that is to say in a key-OR central form.

Through the magazine "Baubeschlag Magazin", number 10/80 (October 1980) another solution for the combined locking is known on the page. Again, an additional bolt that can be actuated by electromagnetic means blocks the main bolt. The additional mechanical locking, which is manipulated by means of a security cylinder using a key, is accommodated together with the electromagnetic means in the door lock case, ie not separately in the door and frame. The lock bolt is not blocked in the front bolt part, but in the rear bolt part.

Blocking a bolt acting, for example, between the door and the door frame, either by means of a device in the door frame or a device in the door,

O PI - *. -

each requires a special configuration of the closure. In order, for example, to provide an additional electromagnetic lock in existing locks of any kind, in particular doors, requires intervening changes in the mechanical part of the lock, even preferably the replacement of an existing lock with one that is suitable for the electromagnetic addition - locking provided, or is already provided with such a manufacturing.

This naturally entails high costs, since otherwise intact locking mechanisms in their entirety and often with them. additional modification work on the existing door or door frame must be replaced. The additional possible security is often not used for this very reason, especially when a large number of locks have to be converted.

It is the object of the invention to create a unit which is as independent as possible with mechanical and electromagnetic locking and which can be easily exchanged in the same locking system with the normalized dimensions common today. This exchange should be possible without changing the technical environment of the castle.

Furthermore, it is an object of the invention to create the above-mentioned independent unit so that it operates on one of the two sides separated by the closure (door sides) or simultaneously on both sides separated by the closure (door sides) or with different wires on each of the sides separated by the lock (door side).

The object is achieved by a lock cylinder stator with a recess, an electrically operable bolt arranged in the recess, and a locking mechanism acting between the lock cylinder stator and the lock cylinder rotor. Preferred embodiments of the lock cylinder, stator and electrically operable bolt arrangement, the solenoid valve and the locking mechanisms in connection with the magnetic bolt are specified in the dependent claims.

OMPI WIFO- ' The invention will now be explained in detail with the aid of the drawings listed below. Show it:

1 is a view of a lock cylinder with mechanically actuated tumblers and with an electromagnetically actuable tumbler and interacting with the lock cylinder according to the invention.

Fig. 2 The electromagnetically operable bolt in a longitudinal section

3 shows the lock cylinder according to FIG. 1 in a longitudinal section

Fig. 4 The latch part from the viewing direction Z shown in Fig. 3

Fig. 4 'The locking part removed from the rotor end

Fig. 5 Spatial representation of a lock cylinder with key according to the invention.

FIG. 1 now shows the side of a lock cylinder 10 carrying the locking parts, that is, based on the spatial representation of FIG. 5, the rear part of the lock cylinder protruding into the lock mechanism.

The cylinder sleeve 7 delimiting the lock cylinder has an outer circumference that corresponds to the standardized dimensions. In this way, a lock cylinder according to the present Er £ 1- * ng can be inserted into a harkc- ^ nlicr equipped lock; either in the case of an exchange, for example if an ^" existing lock is also available should be lockable or when creating new locks in which the electromagnetic additional locking is provided. The usual lock systems that are widespread everywhere can be used without modification.

The stator 5 is arranged within the cylinder sleeve 7 and has radial bores for the mechanical tumblers to be actuated with the key. These mechanical tumblers are only indicated by the tumbler levels 4, the tumbler levels inclined to the key main level, for example 45, being denoted by 4a and 4a ", those denoted by 90 inclined by 4b and 4b ¹ , and furthermore the one coinciding with the key master level Tumbler level 4c ^1. In addition, “the rotor 3 with the key channel end 1, which in this illustration coincides with the lever groove 50 in FIG. 5, and the locking part 37 arranged non-rotatably with the rotor 3 are visible a locking element 28 also shown, which is attached to an armature 21, engages, for example, when the armature 21 is brought into one of two intended positions or positions by the magnetic action. The armature 21 is part of the entire electromagnetic bolt 20 which is shown in FIG a groove 6 running axially in the stator 5. The groove 6 for receiving the magnetic bolt is from the Cylinder sleeve 7 covered and pressed at the same time, so that the magnetic latch 20 is largely secured against rotation and displacement. The securing of the position of the magnetic bar in the stator groove can be secured by various measures, of which, for example, the partial flange 44 shown on the magnetic bar 20 in FIG. 5, or the carrier plate 42 for the electrical leads 45 for actuating the magnetic winding of the belt -

O PI

gels, or both elements may be mentioned together as appropriate.

The detailed version of the magnetic bar is shown in Fig. 2. One recognizes a housing 25, preferably adapted to the shape of the groove, but in the simplest design cylindrical housing, which encloses the electrical and mechanical locking parts. The carrying the solenoid 23

Coil body 24 is inserted and secured in the bolt housing. The current passing through ^"the internal part of the coil 23 of soft iron armature 21 carries in about a third of its length a locking washer consolidates be¬ 27, which is so large that it acts against arranged on the housing end stop 29 as a longitudi- nal movement limiting. A between coils ¬ body 24 and locking washer 27 acting compression coil spring 26, brings the armature 21 in a defined position with respect to the housing 25 and thus also with respect to the rotor 3 of the lock cylinder.

The magnetic field generated by the excited winding pulls the armature 21 against the force of the compression spring 26 as far as the armature stop 22, at the same time the locking element 28 attached to the extension of the active armature part is also withdrawn. This forward and backward movement of the locking element 28 is abbreviated in order to inhibit or release the rotary movement of the rotor by engagement of the locking element in the locking part 37 firmly connected to the rotor 3.

In its front, the. ^ Perrele ent 28 carrying armature 21 is set to a smaller radius. This measure creates a stop 47 at the transition 21, 21 'of the different radii, which in conjunction with a locking washer 48 helps the locking pin 28 to a secure fit.

The interaction of the lock cylinder 10 with the magnetic bolt 20 or the interaction of the magnetic bolt 20 with the rotor 3 can be seen in FIG. 3. The magnetic bar 20 shown in FIG. 2 is fastened in the groove 6 machined in the stator 5. The front part of the lock cylinder shown is provided with an input flange 31 for the key channel 1. This page is accessible from the outside for the key. The opposite side, that is to say inside the lock, carries the electrically actuable locking device with the locking part 37, the locking groove 38 and the freewheel groove 35. The whole together also forms the rotor end 33. Some of the tumblers 4, which are shown in FIG. 1 with their guard locking levels. In this illustration, the locking element 28 protrudes into the freewheel groove 35, that is to say the rotor 3 can be rotated about its axis by unlocking the mechanical tumblers by means of the key belonging to the lock cylinder. This rotary movement is transmitted to the opening mechanism of the lock via a lock actuator (not shown) in the lever groove 50 (FIG. 5). Due to the action of the coil 23 through which the strokes flow, the armature 21 with the locking element 28 attached to it is pulled back against the rotor 3 in the axial direction and the locking element 28 thereby moves into the locking groove 38; the rotor is locked and despite an attempt to actuate it with the correct key, that is to say the key assigned to the security cylinder, the lock cannot be opened. In this arrangement, the de-energized rest position releases the rotor 3, that is to say the magnetic latch must be energized for locking. This effect can of course be reversed if the locking and freewheeling groove are swapped over, so that the lock cylinder is locked when de-energized.

FIG. 4 shows the rotor end 33 in detail from the view of the locking element 28, that is to say the locking part from FIG. 3, seen from above in the direction indicated by Z. Again there is <3a _S Sperreleπent 28 in the freewheel groove 35 opposite the locking groove 38. The locking part 37 forms the outer boundary. Here you can see immediately that when the armature is moved in the direction of arrow S, the locking element 28 in the locking groove 38 blocks the rotor end 33 and thus the rotor 3 against rotation. In order to bring about the above-mentioned reversal of the effect, namely the state of the lock in the de-energized state, and without a part of the device having to be changed or exchanged, the blocking part 37 is formed according to FIG. 4 '. The locking part designated by the number 37 ^* is arranged so that it can be removed from the rotor end 33 and is dimensioned such that the segments lying next to one another in the circumferential direction and bearing the freewheel groove 35 on the one hand and the locking groove 38 on the other hand have the same longitudinal dimensions. Due to the resulting symmetry, the locking part 37 * can be easily inserted into the

-gtT E OMP Turn the position designated S ¹ relative to the rotor end 33 and at the same time interchange the position of the freewheel groove 35 with that of the locking groove 38. The armature 21 then keeps the blocking element 28 attached at one end in the blocking groove 38 in the de-energized state. By switching on the current to energize the solenoid coil 23, the blocking element 28 is removed from the blocking groove 38 into the free-running groove 35 withdrawn and the rotor can be freely rotated after opening the mechanical tumblers 4. This is then the condition for unlocking the associated lock.

The entire arrangement of the magnetic latch 20, lock cylinder 10, rotor end 33 and the corresponding key is shown in a spatial representation in FIG. 5. In this illustration, only one lock cylinder 10 of a lock can be seen of a lock. If, for example, the lock should be able to be opened from both sides of a door, for example, a further lock cylinder facing the lock cylinder 10 shown must be arranged. Both are able to operate the common lock and both have mechanical tumblers assigned to a corresponding key.

The mechanical action of the rotor 3 rotating about its longitudinal axis is continued via the engagement of a lock actuator (not shown) in the lever groove 50 located at the rotor end. This lever groove is expediently simply the extension of the key channel 1 in the rotor 3 beyond the rotor end 33 . On the one hand, the freewheel groove 35 is cut and crossed at right angles and on the other hand

^• * gυ E

OMPI ^" the locking groove 38 cut in its longitudinal direction.

However, this simplifying measure requires that the locking part 37 is integrated in one piece in the rotor end 33, since the solid key channel would divide the locking part 37 'according to FIG. 4' into two halves.

The carrier plate 42 for the electrical feed lines 45, which is arranged at one end of the magnetic bar 20, is mounted outside the cylinder sleeve 7, projecting only slightly in its radius. As already mentioned, it can also be used to secure the position of the magnetic bolt 20 in the stator 5. Even more expedient is a system of the partial flange 44 which is fitted onto the rotor end 33, or a housing shape of the magnetic latch housing 25 which is adapted in the axial stator 5 and runs in the stator 5

There is now the possibility of equipping only one of the two door sides with a lock cylinder according to the present invention, with the effect that, for example, a person authorized to enter is admitted via the magnetic latch actuation, which can be carried out from a control center, and at any time through the same Door from the inside to the outside. Or vice versa, the person holding the key can get entry at any time, but in order to get out, they can have the magnetic bar operated. In principle, the following relationship can be established:

OMPI

Door on off

1. M M The magnetic latches must be operated for entry and exit

2. M Only exit must be requested

3. M Only entry must be requested

4. O O key alone sufficient for entry and exit

This also shows an advantage of the invention: according to the table, an existing lock can be appropriately conditioned by simply exchanging one or the other or both lock cylinders and thus upgraded in terms of control and security. The corresponding lines can be easily transferred from the door to the frame via passages in the door hinge. Several such measures are known.

OMP, WIP

Claims

Patent claims

1. Lock cylinder _with an associated electromagnetic lock, characterized by a lock cylinder stator (5) with a recess (6), an electrically operable bolt (20) arranged in the recess (6) and one between the lock cylinder Stator (5) and the lock cylinder rotor (3) acting locking mechanism (28, 37) .-

2. Lock cylinder according to claim 1, characterized gekenn¬ characterized in that the longitudinal center plane of the recess (6) in the lock cylinder stator to the longitudinal center planes (4) of the tumblers on both sides of the longitudinal center plane of the recess (6) have the same angle to each other.

3. Lock cylinder according to claim 1, characterized in that the magnetic bolt (20) has a translationally movable armature (21) with a locking element (28) arranged at the armature end.

4. Lock cylinder according to claim 1, characterized gekenn¬ characterized in that the locking mechanism (28, 37) by a non-rotatably mounted on the rotor (3) locking part (37) with a freewheel groove (35) and a locking groove (38) and one

OMPI

in operative connection, the stator (5) assigned blocking element - (28} ^" .

5. Lock cylinder according to claims 3 and 4, characterized in that in the rest position of the magnetic bolt (20) the ^* locking element (28) is in engagement with the locking groove (38).

6. Lock cylinder according to claims 3 and 4, characterized in that the locking element (28) is in the freewheel groove (35) in the rest position of the magnet.

7. Lock cylinder according to claims 4, 5 or 6, characterized in that the locking part (37 ') on the rotor (3) is removable.

8. Lock cylinder according to claim 7, characterized gekenn¬ characterized in that the locking part (37 ') has a dimension such that the freewheel groove (35) and

Locking groove (38), when swapping their position by rotation through 180 transversely to the longitudinal axis of the rotor, are arranged functionally in the correct position relative to the locking element (28).