ES2289660T3 - LOCK CYLINDER - Google Patents

Abstract

The lock has a core (2) movable in a housing (1). An electromagnetically activatable lock mechanism is provided for optional blocking and releasing movement of the core. The core comprises a slot (10) at its top side for complete intake of movable lock units (11). The movable lock units are provided in a separation plane between the housing and the core, where the lock units support the slot in the housing.

Description

Lock cylinder.

The invention relates to a closing cylinder with a mobile core in a housing, with a locking mechanism, which can be activated electromagnetically, for blocking or Optional release of core movement.

Such closing cylinders are used with frequency in current closing installations and is known by example, from document DE 199 01 838 A1. In the cylinder known closure, a locking latch is arranged so movable in a hole in the housing and is prestressed by a spring element in the direction of the core. The core presents bags for housing locking latch. In position Basic closing cylinder, an armature connected to the latch lock is pressed against an electromagnet mechanism electromagnetically activated lock. When there is a closing authorization, the electromagnet is powered by current and retains the armature. In this way, the latch latch is retained inside the housing and the core can be turned in front of the housing When there is no closing authorization, the Locking mechanism is not powered by current and the latch of blockage comes through the force of the spring element, during a rotation of the core, to one of the core bags and Block your extra movement. The latch movement of blockage inside the core bag requires, however, a short period of time due to the mass inertia of the latch lock However, an introduction of a kinetic energy large in the core can lead to the locking latch not arrive at all times in a reliable way to the bag of the housing due to its mass inertia.

The invention is based on the problem of develop the closing cylinder of the type mentioned at the beginning in such a way that your security against handling.

This problem is solved according to the invention because the core has on its upper side provided for mounting a bag for the complete reception of an item mobile lock, because the housing has opposite side to the core bag a bag and because the bag in the housing supports to the locking element in the plane of separation between the housing and the nucleus.

Through this configuration the blocking element in the normal state through the force of the gravity in the core bag and in this way does not prevent the core movement. The closing cylinder according to the invention can be locked and unlocked, therefore, as is provided, through the locking mechanism. But nevertheless, unfortunately if high kinetic energy is applied in the core, then a centrifugal force is introduced into the element lock This leads to the blocking element being moved in the direction of the housing and, therefore, in the bag of the Case. Since the bag in the housing supports the element of blocking, the blocking element is held in the plane of separation between the housing and the core and blocks the movement core following. This prevents the cylinder from lock according to the invention be unlocked, in an attempt of manipulation, through the application of a kinetic energy high in the core.

The support of the locking element through the housing bag requires, according to a
advantageous development of the invention, an especially reduced construction expense, when the bag in the housing has a lower depth than the height of the blocking element or has a width smaller than a partial area, directed towards the bag, of the element of blocking. In this way, the bag in the housing can only partially receive the blocking element.

The blocking element, according to a
advantageous development of the invention, even with reduced centrifugal forces, reaches the housing bag and blocks the following movement of the core when the bag in the core has a ramp inclined in the circumferential direction of the core, on which the Locking element with a radius. Through this configuration, the locking element can roll on the ramp with a rapid rotation of the core and is thus reliably conducted in the housing bag.

The blocking element found in the housing bag, according to another advantageous development of the invention is reliably prevented against a pressure back in the core, when a section is connected on the ramp flat, which supports the blocking element that is partially in the case bag.

The blocking element could be configured, for example, as a cylinder. The blocking element is configured, however, according to another
advantageous development of the invention, with a particularly favorable cost when the blocking element is configured as a ball. Another advantage of this configuration is that the blocking element thus has particularly small dimensions. Preferably, the blocking element configured as a ball is disposed outside the plane of the electromagnetically activatable blocking mechanism, so that it does not engage in the blocking mechanism when there is an authorized rotation of the core.

The blocking element, according to another Advantageous development of the invention, can block movement of the core, even with a reduced movement outside the bag of the core, when the bag in the core is configured as a drill, in which the blocking element is guided in a sliding way axially Another advantage of this configuration is that, in the case of an authorized rotation of the core, the element of lock can completely close the bag in the core and, so Therefore, it is reliably prevented from engaging with the mechanism lock

In the case of a rapid rotation of the core, it moves the locking element through the centrifugal force of a reliable way in the case bag, when the bag in the housing is in the circumferential direction of the wider core than The blocking element.

Contributes to the additional elevation of the safety of the closing cylinder according to the invention against an attempt to break that the position of rotation of the core, in the that the movement of the core is blocked through the element lock provided in the housing bag, corresponds to the pivot position, in which a locking mechanism latch Electromagnetically activated lock blocks the movement of the nucleus. This configuration enables the locking mechanism Electromagnetically activatable block core movement additionally, when the blocking element has blocked its movement. Since the locking mechanism latch blocking is more inert than the blocking element moved by the centrifugal force, is obtained through the movement of the lock to through the locking element a time the latch needs lock to block, on the other hand, also the movement of the nucleus. In addition, this prevents that after blocking of the movement of the core by means of the blocking element, to through a reduced backward rotation of the core the element lock out again out of the case bag and to Then the locking cylinder can be unlocked.

The closing cylinder according to the invention can reliably resist an attempt to manipulation with a magnet to influence the electromagnetically activatable locking mechanism, when the Locking element is made of a magnetizable material and when the case has an insert in the bag area magnetizable material. Through this configuration the blocking element, when a magnetic field acts on the closing cylinder according to the invention, through the magnetization of the insert, to the housing bag and blocks the core movement. Without the performance of a magnetic field, it locks the blocking element during a rapid rotation of the nucleus. The insert can be configured in this case so rectangular, triangular or bar-shaped.

In the case of a magnetic field acting on The closing cylinder according to the invention is formed in the reliably bag a magnetic pole, when the insert It penetrates exclusively with a ridge in the case bag. This contributes to the additional safety elevation of the cylinder closure according to the invention against an attempt to handling.

The movement of the core can be blocked already with reduced magnetic fields, when the insert points from the bag in the direction of the next front side of the case.

In general, the closing cylinder of according to the invention in a lock box made of sheet steel. In the case of an attempt to manipulate the magnetizable locking mechanism with a magnet, the box is magnetized of the lock. The magnetic fields that result through the magnetization of the lock case can be transmitted with little expense on the blocking element, when the insert points from the bag in the direction of a closing pallet.

The closing cylinder according to the invention can be manufactured with a particularly favorable cost, when the insert is made of an iron material.

According to another development of the invention, long-lasting magnetization of the insert can be easily avoided and, therefore, a durable tightening of the locking element, when The insert is made of a non-magnetizable material so durable This ensures that it is guaranteed in a reliable way again the function of the closing cylinder according to the invention after an attempt to manipulate with a magnet and that The blocking element is in the core bag.

The invention allows numerous forms of realization. For further illustration of its basic principle several such embodiments are represented in the drawing and They described below. In the drawing:

Figure 1 shows a representation in section through a closing cylinder according to the invention.

Figure 2 shows the closing cylinder of the Figure 1 in a locked position.

Figure 3 shows a representation in section through another embodiment of the closing cylinder  of figure 1 in the locked position.

Figure 4 shows a representation in section through another embodiment of the closing cylinder  of figure 1 in the locked position.

Figure 5 shows a representation in section through another embodiment of the closing cylinder  of figure 1 in the locked position.

Figure 6 shows a representation in section through another embodiment of the closing cylinder  of figure 1 with a magnetizable insert.

Figure 7 shows a representation in section through the embodiment of the closing cylinder of figure 6 along line VII-VII.

Figure 1 shows a closing cylinder of according to the invention with a rotating core 2 in a housing 1. The closing cylinder has an activatable locking mechanism 3 electromagnetically with a locking latch 5 arranged axially movable shape in the housing 1 and prestressed by a spring element 4 in the direction of the core 2. In addition, the locking mechanism 3 has an electromagnet 6, which can retain the lock latch 5 in a position pressed into the housing 1. In the position shown, lock latch 5 is partially found in a recess 7 of core 2 and of this way blocks the movement of the core 2 in front of the housing 1. This identifies a basic position of the closing cylinder. He lock latch 5 can be pressed into the housing by means of a key inserted in a closing channel 8 of the core 2. When there is a key closing authorization, electromagnet 6 retains the latch 5 in a position that is totally in the housing 1 and, therefore, enables rotation of the core 2 in front of the housing 1. The closing cylinder and the function of the locking mechanism 3 are described in detail in the DE 199 01 838 A1, so that express reference is made to this publication for the description of the role of components of the closing cylinder. In addition to the recess 7 in the core 2, core 2 has closing recesses 9. When the latch latch 5 is pressed into the core by means of a unauthorized key for closing the closing cylinder, it is prevented the activation of the electromagnet 6 and the locking latch 5 is pressed by the force of the spring element 4 in the case of a rotation of the core 2 entered the closing recess 9 correspondent.

In addition, the core 2 has on its upper side a bag 10 for housing a blocking element 11 configured as a ball or cylinder. The upper side mentioned is refers to the expected mounting position of the closing cylinder, so that the blocking element 11 is retained in the position represented by the force of gravity in the bag 10. Facing the bag 10 in the core 2 is arranged a bag 12 in the housing 1. The bag 10 in the core 2 has two ramps 13 that are They move away from their deepest position. Bag 12 in case 1 It has a lower depth than the one corresponding to the height of the locking element 11. In the case of an unlock provided with the closing cylinder by means of an authorized key for closing, the core 2 can be rotated with a speed regularly exercised. In this case, the blocking element 11 remains in bag 10 of core 2. For the simplification of drawing, locking latch 5 and locking element 11 are they represent in the same plane of the closing cylinder. To avoid an interaction of the bag 10 of the core 2 with the element of lock 11 and lock latch 5, the latch latch 5 and locking element 11 evidently in different planes of the closing cylinder.

However, if you try first press the locking latch 5 out of the core 2 and to then rotate core 2 with an especially high speed, then the blocking element 11 moves through the force centrifuge out. This position is represented in figure 2. Since the bag 12 in the housing 1 has a greater depth reduced than that corresponding to the height of the blocking element 11, the blocking element 11 is retained in the separation plane between the housing 1 and the core 2 and thus blocks the additional movement of the core 2. This identifies the position of blocking. In the drawing, the locking latch 5 is arranged still completely inside the housing 1, since in the case of that a high kinetic energy is applied in the core 2, due to its mass inertia may take a short period of time to arrive at the closing recess 9 of the core 2. Figure 2 shows  in this way the closing cylinder within the period of time short, in which the blocking element 11 is pressed through of the centrifugal force out and the locking latch 5 is is still inside the housing 1. The dimensions of the bags 10, 12 in the core 2 and in the housing 1 as well as the locking element 11 and closing latch 5 are selected so that the locking latch 5 can reach through the force of the spring element 4 still at the corresponding closing recess 9 of the core 2, when the blocking element 11 blocks the movement of the core 2.

Figure 3 shows another embodiment of the closing cylinder in the locked position, which differs of the embodiment of figure 2 because the bag 10 it presents in the core 2 for the blocking element 11 a section flat 14 that connects to ramp 13. In the locked position represented, flat section 14 prevents backward pressure of the blocking element 11.

Figure 4 shows another embodiment of the closing cylinder in the locked position with a section flat 15, which connects to ramp 13 of bag 10 core 2. The function of the flat section 15 corresponds to that of the flat section 14 of Figure 3. Bag 12 in housing 1 is configured open out. However, to support the element of lock 11, the bag 12 in the housing 1 has a section transverse smaller than the blocking element 11.

Figure 5 shows another embodiment of the closing cylinder according to the invention in the position of blocking, in which a blocking element 16 is configured in bolt shape and is axially movable guided in a bag 17 of the core 2 configured as a drill. The element of lock 16 has at its end directed towards the housing 1 a constriction 18. The bag 12 of the housing 1 has a width that corresponds to constriction 18, so that the element of block 16 can come exclusively with constriction 18 to the housing bag 12 1. This prevents the locking element 16 it goes out completely out of core 2 in case it is applied high kinetic energy in core 2.

Figure 6 shows another embodiment of the closing cylinder, which differs from the shape of embodiment of figure 4 because the housing 1 presents in the area of the bag 12 an insert 19 of a magnetizable material. He blocking element 11 is also made of a material magnetizable. When trying to manipulate the locking mechanism 3 of the closing cylinder with a magnetic field applied from the outside, then insert 19 is magnetized at the same time leads to the blocking element 11 to the bag 12 of the housing 1. From in this way, the blocking element 11 is the same way in the plane of separation between the housing 1 and the core 2 and blocks the extra spin of core 2.

Figure 7 shows the closing cylinder of the Figure 6 in a sectional representation along the line VII - VII. In this case, it can be recognized that the insert 19 points in the direction of a closing pallet 20. With the pallet of closure 20 the closing cylinder is mounted, in general, in a box of lock 21, which is magnetized in the same way when a magnetic field. In addition, another form of realization of the arrangement of an insert 19 '. This insert 19 ' points from the bag 12 of the housing 1 in the direction of one side front of the closing cylinder and is already magnetized with fields reduced magnetic introduced from this side.

Obviously, also the embodiments of the closing cylinder according to figures 1 to 5 may be equipped in the same way with inserts 19, 19 'represented in figures 6 and 7.

Claims (14)

1. Locking cylinder with a mobile core in a housing, with an electromagnetically activatable locking mechanism for the optional locking or release of the movement of the core, characterized in that the core (2) has on its upper side, intended for mounting, a bag (10, 17) for the complete accommodation of a mobile locking element (11, 16), because the housing (1) has a bag (12) on its side opposite the bag (11, 17) of the core (2 ) and because the bag (12) in the housing (1) supports the locking element (11, 16) in the plane of separation between the housing (1) and the core (2). 2. Closing cylinder according to claim 1, characterized in that the bag (12) in the housing (1) has a depth smaller than the height of the locking element (11, 16) or has a smaller width than the partial zone of the blocking element (11, 16) directed towards the bag (12). 3. Closing cylinder according to claim 1 or 2, characterized in that the bag (10) in the core (2) has a ramp (13) inclined in the circumferential direction of the core (2), on which the element rests lock (11) with a radius. 4. Closure cylinder according to claim 3, characterized in that a flat section (14, 15) is connected to the ramp (13), which supports the locking element (11) that is partially in the bag (10) of the nucleus (2). 5. Closing cylinder according to claim 1 or 3, characterized in that the blocking element (11) is configured as a ball. 6. Closing cylinder according to claim 1, characterized in that the bag (17) in the core (2) is configured as a bore, in which the locking element (16) is guided so
axially movable. 7. Closure cylinder according to claim 1, characterized in that the bag (12) in the housing (1) is wider in the circumferential direction of the core (2) than the locking element (11, 16). 8. Closing cylinder according to claim 1 or 7, characterized in that the rotating position of the core (2), wherein the movement of the core (2) is locked through the locking element (11, 16) arranged in The bag (12) of the housing (1) corresponds to the rotating position, in which a locking latch (5) of the electromagnetically activated locking mechanism (3) blocks the movement of the core (2). 9. Closure cylinder according to claim 1, characterized in that the locking element (11, 16) is made of a magnetizable material and because the housing (1) has an insert (19) in the area of the bag (12). , 19 ') of a magnetizable material. 10. Closure cylinder according to claim 9, characterized in that the insert (19, 19 ') is projected exclusively with an edge in the bag (12) of the housing (1). 11. Closure cylinder according to claim 9 or 10, characterized in that the insert (19 ') points from the bag (12) in the direction of the next front side of the housing (1). 12. Closing cylinder according to claim 9 or 10, characterized in that the insert (19) points from the bag (12) in the direction of a closing pin (20). 13. Closing cylinder according to claim 9, characterized in that the insert (19) is made of an iron material. 14. Closing cylinder according to claim 9 or 14, characterized in that the insert (19) is made of a non-magnetizable material of
durable form.