BR112020009615B1 - DEVICE CABINET LOCK - Google Patents

Abstract

The security level of the device cabinet lock according to the invention is better than that of previous device cabinet locks. The device cabinet lock (1) comprises a rotating latch (2), which is connected to a rotating shaft (3). the latch and pivot shaft are arranged to rotate from a locked position to an open position and vice versa. the rotating shaft (3) is connected to a lock cylinder (4), which is arranged to transfer the force caused by the turning of a key in the rotating shaft (3) in order to rotate it and the latch (2). The device cabinet lock (1) also comprises a locking means (5), which is arranged to prevent the rotating shaft (3) and the latch (2) from being rotated to the open position in the locking position of the locking means. lock (5). Furthermore, the device cabinet lock of the housing box (1) compares a control means (6a, 6b) to the locking means (5), to control the locking means from the locking position to the release position .

Description

Field of invention

[001] The invention relates to a lock of a device enclosure, compartment box or other enclosure. Compartment boxes and cabinets are used, for example, in schools and workplace changing rooms and sports halls. Furthermore, they are used, for example, in power plants and telecommunications networks to protect machines, i.e. in this case they are called device enclosures. A device enclosure lock in this context also means a lock on a bay box or other enclosure.

Previous technique

[002] It is known that a device cabinet lock is equipped with a lock cylinder. The lock cylinder is opened with a socket wrench in it. In its simplest form, the lock cylinder comprises an opening of a certain shape, into which a key fits, which has corresponding shapes. When the key is turned, the lock cylinder rotates, whereby a latch or latch controller connected to the rear end of the lock cylinder from the closed position to the open position and vice versa. When the latch is in the open position, the cover of the device enclosure, enclosure box, or other enclosure can be opened. The key may thus, for example, be a spindle shaped in a certain way, and the lock cylinder thus has corresponding shapes. Or the key is a so-called coded key, which has certain shapes, and the lock cylinder has drums for these shapes. The key shapes thus form a certain code, with which the lock cylinder barrels can be turned to a release position and thus the lock cylinder can also be turned to the open position. The goal is to make device cabinet locks as cost-effective as possible while keeping their structure simple. A rotating latch attached to the lock cylinder is generally used as a locking element. Therefore, the security level of device enclosure locks is not very good.

[003] FR publication 2570744 discloses a lock with two racks and a toothed wheel, which cooperates with the racks. Additionally, the publication advertises a rotating lock. Another publication, EP0919682, also describes a lock with two racks, a toothed wheel and a rotary lock.

Brief description of the invention

[004] The object of the invention is to provide a device cabinet lock, the security level of which is better than that of previous device cabinet locks. An additional objective is that the increased level of security is achieved in a cost-effective manner.

[005] The device cabinet lock 1 according to the invention comprises a rotating latch 2, which is connected to a rotating shaft 3. The latch and the rotating shaft are arranged to rotate from a locking position to an open position and vice versa. The rotary shaft 3 is connected to a lock cylinder 4, which is arranged to transfer the force caused by turning a key on the rotary shaft 3 in order to rotate it and the latch 2. The device cabinet lock 1 also comprises a locking means 5, which is arranged to prevent the rotating shaft 3 and the latch 2 from being rotated to the open position in the locking position of the locking means 5. The locking means 5 are arranged to rotate from the locking position to a release position and vice versa. The direction of movement of the locking means 5 from the locking position to the releasing position is opposite compared to the direction of movement of the latch 2 from the locking position to the open position. Furthermore, the device cabinet lock 1 comprises control means 6A, 6B for the locking means 5, for controlling the locking means from the locking position to the releasing position.

List of Figures

[006] In the following, the invention will be described in more detail with reference to the attached figures, in which

[007] Figure 1 shows an example of a device cabinet lock according to the invention,

[008] Figure 2 shows an example of the device cabinet lock as locked,

[009] Figure 3 shows an example of a device cabinet lock according to the invention with the lock open,

[010] Figure 4 shows an example of a device cabinet lock according to the invention with the latch rotated in the open position,

[011] Figure 5 shows an example of a device cabinet lock according to the invention with the lock opened by electronic control and with the latch rotated in the open position,

[012] Figure 6 shows an example of a device cabinet lock according to the invention as locked, with the electronic control turned off,

[013] Figure 7 shows an example of a device cabinet lock according to the invention with the lock opened by electronic control,

[014] Figure 8 shows an example of the locking means of locking a device cabinet lock in accordance with the invention, and

[015] Figure 9 shows an example of a locking means plate.

Description of the invention

[016] Figure 1 shows an example of a device cabinet lock according to the invention. The device enclosure lock is installed inside the cover/door of a device enclosure, bay box, or other enclosure. The lid or door has holes for lock cylinders 4, 6A. Figure 1 thus shows the device enclosure latch on the side that is fitted against the inner surface of the device enclosure cover/door, enclosure box, or other enclosure.

[017] Figure 2 shows an example of the device enclosure lock as locked. The device cabinet lock 1 comprises a rotating latch 2, which is connected to a rotating shaft 3. The latch and the rotating shaft are arranged to rotate from a locking position to an open position and vice versa. The rotary shaft 3 is connected to a lock cylinder 4, which is arranged to transfer the force caused by the turning of a key on the rotary shaft 3, in order to rotate it and the latch 2. The lock cylinder is thus used with a key fits into it, which is known as such. The lock cylinder can be manufactured in different ways. In the example in Figure 2, the lock cylinder is short and does not necessarily comprise separate drums. The lock is based on the shapes of the key opening and the lock cylinder cylinder and the corresponding shapes of the key. In the example of Figure 2, a rotating shaft 3 is connected to the lock cylinder, which may also be a fixed part of the lock cylinder. From Figure 2 it can also be seen how the latch 2 can be connected to the rotating shaft 3. In this example, there are two straight surfaces 3A of the rotating shaft, which relay the turning force of the rotating shaft to the latch 2 through their surfaces opposite.

[018] The device cabinet lock 1 also comprises a locking means 5, which is arranged to prevent the rotating shaft 3 and the latch 2 from being rotated to the open position in the locking position of the locking means 5. The means locking screws 5 are arranged to rotate from the locking position to a releasing position and vice versa. Figure 8 shows in more detail an embodiment of the locking means.

[019] The direction of movement of the locking means 5 from the locking position to the releasing position is opposite compared to the direction of movement of the latch 2 from the locking position to the open position. Therefore, it is very difficult or even impossible to manipulate the opening of the device case lock. The device cabinet lock 1 also comprises control means 6A, 6B for the locking means 5, for controlling the locking means from the locking position to the releasing position.

[020] As already stated, Figure 8 shows an embodiment of the blocking means. The locking means 5 comprises a plate 7. Figure 9 shows in more detail an embodiment of the plate. The locking means can, for example, also be a casting, which has a central hole and from which the projections extend in different directions.

[021] The plate is rotatably connected to the rotary shaft 3, and the plate 7 has a control projection 7A, 7B for the control means 6A, 6B of the locking means and a locking surface 7C. The device cabinet lock further comprises a toothed wheel 8, which is connected to the rotary shaft 3 and arranged to rotate with the rotary shaft, and a rack 9, which has an opposing locking surface 9A to the locking surface 7C and a indentation 9B, which is in connection with the sprocket 8. The sprocket is only slightly visible behind the plate 7 in Figure 8. The plate has a round installation hole 7E, through which the plate 7 can rotate relative to the rotating axis 3, regardless of the position of the rotating axis. The figures in this presentation show an embodiment, the plate 7 of which has two control projections 7A, 7B, but it is possible to form an embodiment with only one control projection. The embodiment of the invention may, for example, be such that any of the projections of the plate 7 are absent. Thus, only one control means is used in the device cabinet lock, even though an embodiment with two control means is shown in the figures.

[022] Furthermore, the embodiment in the figures uses two racks 9, 10, but it is possible to make an embodiment that has only one rack. In a rack embodiment, the plate 7 only needs a locking surface 7C. In the two-rack embodiment, the plate 7 may have two locking surfaces 7C, 7D. The plate thus has at least one blocking surface.

[023] The teeth of the gear enter the gaps between the indentation 9B of the rack 9, whereby, when rotating the rotating shaft 3 (with a key through the lock cylinder), the rack struggles to move in a linear manner. If the plate 7 or another embodiment of a locking means is in the locking position, its locking surface 7C (or 7D) is against the opposite locking surface 9A (or 10A) of the rack, whereby the linear movement of the rack and At the same time, rotation of the rotating shaft 3 and latch 2 is also prevented. The device cabinet lock is thus locked. As already stated, there may also be two racks on the device's cabinet lock, where there may also be two locking surfaces. Furthermore, the second rack 10 is connected to the sprocket 8 through its backstop 10B.

[024] In the embodiment of the figures, there is a double indentation in the racks, that is, there is indentation on both edges of the rack, but one indentation is sufficient to provide the desired operation. When using double recoil, a second sprocket can also be arranged for the rotating shaft. When using double indentation, the indentations may overlap, as shown in the figure embodiment.

[025] Rack 9 (or 10) or racks 9, 10 need not be very long, but may be entirely within the lock structure 1A of the device cabinet lock, regardless of the position of the rack. The dotted lines 81 illustrate this in Figure 8. The rack (or racks) may also be so long that it extends outside the lock structure 1A. A rack (or racks) can be used as an additional latch or to control an additional latch. Thus, the rack does not need to be recessed along its entire length, but the rack 9 may comprise a non-recessed section 9C, 10C, which extends outward from the lock structure 1A. In the embodiment according to the figures, there may be, in addition to latch 2, at least one additional latch or a controller for an additional latch.

[026] As already stated, the plate may have a second locking surface 7D, wherein the locking means comprise a second rack 10, which has a second opposing locking surface 10A to the second locking surface 7D and a second indentation 10B, which is in contact with the sprocket 8. The second rack 10 may also comprise an uncut section 10C, which extends outward from the lock structure 1A.

[027] In order for the lock to be opened, the device cabinet lock 1 also comprises a means of controlling the locking means 5. The control means may be a second lock cylinder 6A or an electronic control device 6B. Figures 2 - 4 show the use of a lock cylinder 6A as a means of control. Figure 2 shows a situation where latch 2 locks the cover/door of a device enclosure, enclosure box, or other enclosure. Furthermore, racks 9, 10 are used in this example to control additional latches, which are not shown in the figures. The free ends of the racks can also form additional latches if they are disposed in the housing/cabinet frame during locking.

[028] The second lock cylinder 6A is arranged to rotate the plate 7 from the lock position to the release position by turning a second key in the second lock cylinder 6A. At the bottom of the second lock cylinder 6A there is a control form 11, which controls the plate 7 through the control boss 7A when the second key, i.e. the key intended for use in the second lock cylinder, is turned. Figure 3 shows a situation where the second key was rotated, which caused control shape 11 to rotate. The control shape in this example is a peg.

[029] When rotating, the control form 11 simultaneously rotates the plate 7, moving it away from the locking position. Thus, the locking surface or surfaces 7C, 7D of the plate are not against the locking rack or racks and the key can be turned in the lock cylinder 4. As a result of this, the lock cylinder and its rotating axis or the rotating axis 3 connected to it rotate, whereby the latch 2 and the toothed wheel 8 or the toothed wheels connected to the rotating shaft also rotate. The sprocket, in turn, moves the racks 9, 10, as a result of which additional latches also move away from the locking position. Figure 4 illustrates this situation.

[030] In figures 3 and 4 it can be seen that the direction of movement of the locking means 5, more precisely the direction of movement of the plate 7 to open the lock, is opposite to the direction of movement of the latch 2 towards the open position . This means that you cannot open the device enclosure lock by manipulating the latch or lock plate. Therefore, it is very difficult or even impossible to manipulate the opening of the lock. Since the directions of movement of the plate and latch are rotating in these embodiments, the directions of rotation of the plate and latch toward the open position are therefore opposite.

[031] Springs for different purposes can also be placed in the device cabinet lock 1. A spring can, for example, be used to rotate the plate 7 towards the locking position, where its bearing surface(s) lock is against the opposite surface(s) 9A, 10A of the rack(s). A spring or springs may also be used to keep the latch 2, the racks 9, 10 and the central shaft 3 in the locked position.

[032] Figures 5 to 7 illustrate the operation of the electronic control device. The electronic control device 6B is arranged to form a mechanical transmission connection from the entity formed by the rotating shaft 3 and the latch 2 to the plate 7 in order to rotate it from the lock position to the release position when rotating. a key in the lock cylinder 4. In Figure 5, the electronic control device 6B made it possible for the plate 7 to be moved away from the locking position, as a result of which it was possible to move the latch 2 and the racks 9, 10 away from their positions locking.

[033] The embodiment of the figures comprises a control part 12, which is rotatably connected to the device cabinet lock and which is placed between the entity formed by the rotating axis 3 and the latch 2 and the electronic control device 6B. The electronic control device 6B is connected to the control boss 7B, for example with a screw attachment.

[034] The electronic control device 6B is arranged to form a mechanical transmission connection between it and the control part 12 as a response to the electronic control. The electronic control device 6B is an electromagnet or a solenoid. The figure modality uses an electromagnet. When the control electric current is connected to the electromagnet or other electronic control device, it generates an electromagnetic force, which makes it possible to rotate plate 7. Figure 6 shows a situation in which the electromagnet is de-energized and an attempt was made to rotate the lock cylinder 4 with a key. Thus, the rotating shaft 3 and simultaneously the latch 2 are slightly rotated, but are still in the locking positions, because there is no mechanical transmission connection between the control part 12 and the electromagnet. Figure 6 shows a free space 61 between the control part 12 and the electromagnet, while the control part 12 is also slightly rotated due to the slight rotation of the latch and the rotating shaft. If a control current is connected to the 6B electromagnet, the electromagnet forms an electromagnetic field, through which the electronic control device and the control part are in mechanical transmission connection. The control part is, for example, iron, whereby the electromagnetic field keeps the control part 12 and the electromagnet (or solenoid) connected to each other. Thus, rotating the latch and the rotating shaft, which also rotates the control part 12, moves the plate 7 away from the locked position, as shown in Figure 7.

[035] As already stated, the plate 7 may comprise a second control projection 7A, 7, wherein the device cabinet lock may have a second lock cylinder 6A and an electronic control device 6B. The second lock cylinder and the electronic control device are arranged to operate with the control bosses 7A, 7B, for example, in the manner shown in the figures. The control projections may be formed so as to be suitable for use with the control means intended therefor. Other functions can also be achieved with the control bosses. From the figures it can be seen, for example, that the control protrusion 7A intended for the second lock cylinder can also comprise a side protrusion, which works with a microswitch placed in the device cabinet lock.

[036] There may be one or two control devices on the device cabinet lock to control the lock. An advantage of the electronic control device is that it can be used to control the device cabinet lock to stay out of the lock for example for a certain period of time, whereby it can be opened just by using a key, i.e. the cylinder lock key. An advantage of the second lock cylinder is, for example, that the device cabinet lock does not need electrification.

[037] The device cabinet lock according to the invention can be performed in several different ways, as can be discerned from the above description. The invention enables a better level of device cabinet lock security than known solutions in an economical way. The invention also makes it possible to form different device cabinet lock variations.

[038] The invention is therefore not limited to the examples presented here, but can be implemented in different ways within the scope of the independent claim.

Claims (1)

1. Device cabinet lock, comprising a rotating latch (2), which is connected to a rotating shaft (3), which latch and rotating shaft are arranged to rotate from a locking position to an open position and vice versa. -versa, the rotating shaft (3) of which is connected to a lock cylinder (4), which is arranged to transfer the force caused by the turning of a key on the rotating shaft (3) in order to rotate it and the latch ( 2), characterized by the fact that the device cabinet lock (1) comprises a locking means (5), which is arranged to prevent the rotation of the rotating shaft (3) and the latch (2) to a locking position of the means locking means (5), the locking means (5) of which are arranged to rotate from the locking position to a releasing position and vice versa, the direction of movement of which the locking means (5) from the locking position to the release position release position are opposite in comparison with the direction of movement of the latch (2) from the locking position to the open position, and which device cabinet latch (1) comprises a control means (6A, 6B) for the release means locking (5), to control the locking means from the locking position to the release position, and the locking means (5) comprise a plate (7), which is rotatably connected to the rotating shaft (3), and whose plate (7) has a control projection (7A, 7B) for the control means (6A, 6B) of the locking means and a locking surface (7C), the device cabinet lock of which additionally comprises a toothed wheel (8 ), which is connected to the rotating shaft (3) and arranged to rotate with the rotating shaft and a rack (9), which has an opposing locking surface (9A) to the locking surface (7C) and an indentation (9B) , which is in connection with the toothed wheel (8); the means for controlling the locking means (5) comprising a second lock cylinder (6A) or an electronic control device (6B) whose second lock cylinder (6A) is arranged to rotate the plate (7) from the position of locking to the release position by turning a second key in the second lock cylinder (6A) and which electronic control device (6B) is arranged to form a mechanical transmission connection of the entity formed by the rotating shaft (3) and the lock (2) on the plate (7) in order to rotate it from the locked position to the released position by turning a key in the lock cylinder (4).