ES2238221T3 - CLOSURE DEVICE - Google Patents

Abstract

The lock has a core (4)movable in a housing (1) with a pot-shaped grip part (3) for transferring a movement to the core and control electronics (6) within the grip part for driving a blocking mechanism (7) for making or releasing a shape-locking joint between the core and the housing. The control electronics and the blocking mechanism are fixed to the housing to rotate with it.

Description

Closing device

The invention concerns a closing device with a movable core in a housing and intended to interlock or discretionary release of the closing device, with a bucket-shaped handle to transmit a movement to the core and with a control electronics arranged inside the handle to control a locking mechanism, being formed the locking mechanism to produce or undo a coupling positive shape between the core and the housing.

Such closing devices are used frequently in access control facilities today and They are known for practice. The control electronics can be activate on known closing devices, for example, with a code from a transponder chip, a magnetic strip or a keyboard The control electronics checks the code and, in In case of an access authorization, it relays a command signal to the locking mechanism. In the case of access authorization, the locking mechanism cancels the positive coupling between the core and the housing, so that the handle can be made turn to unlock the locking device. The electronics of control of the known closing device is fixed to the side inside the handle and form with the handle a unit constructive that saves space. The advantages of such closing devices consist, for example, that the access authorization can be limited to time zones or it can be easily block in the event of a loss of the transponder chip or of the magnetic strip.

In this closing device, the fact that the control electronics rotates together with the handle. In the case of a locking mechanism provided in the housing or in the case of a stationary reading device for the transponder or magnetic stripe, this leads to the transmission of electrical energy or electronic signals between the core and housing require, for example, friction contacts or induction loops However, you can manipulate the closing device and this is also prone to breakdowns. Likewise, the maintenance of the control electronics, since it is accessible only with difficulty even after removing the handle.

It is also known by document DE 197 55 218 A1 a closing bulb in which a control electronics of an electromagnetic borja is arranged in an inaccessible place inside the housing. Therefore, it has to be disassembled completely the closing bulb for the maintenance of the electronics. However, this leads to very maintenance expensive closing bulb.

It has been disclosed in US 5,839,305 a closing device in which some batteries and a circuit Electronic are arranged under a rotating handle. He rotary knob can be removed, so, after your Withdrawal the electronic circuit is accessible and this can be manipulated. Therefore, the closing device is not protected from Reliable form against manipulations.

The invention is based on the problem of configuring a closing device of the class cited at the beginning so that present a particularly high reliability and can be maintained in The simplest way possible.

This problem is solved according to the invention by the fact that the control electronics and the locking mechanism they are joined in solidarity in rotation with the housing, a tree joined with the core is inextricably linked with the handle and the core has a bushing attached to the tree and releasable exclusively in the unlocked position of the device closure, and the bushing is guided axially in the housing.

Due to this configuration, the device closure according to the invention does not need contact contacts or loops induction to transmit electrical energy or control signals between the core and the housing or the reading device. Therefore the closing device according to the invention is protected in a manner especially reliable against manipulations and breakdowns. Besides, the control electronics can be maintained easily after to remove the handle to, for example, check or change a drums. However, the removal of the handle without authorization to unlock the closing device according to the invention, since the tree joined with the handle and with the core is connected by positive coupling with the housing in the locked position of the closing device according to the invention. Therefore, the handle can only be removed after unlocking the closing device according to the invention. The socket connected to the core and releasable in position unlocked from the closing device has the advantage that the handle can be removed after unlocking the closing device only when the bushing has been separated From the tree.

The closing device according to the invention is set up as especially simple in the constructive aspect when the housing has a tab that hugs the core to hold the control electronics.

Electronics is not accessible from outside after mounting the closing device according to the invention when the tree is bolted from the inside with the bottom area of the handle.

The indissoluble union of the tree with the handle it is configured as especially simple according to another advantageous improvement of the invention when the tree is Built in a single piece indissoluble with the handle. The handle can be made, for example, of plastic and can have been applied to the tree by injection.

According to another advantageous improvement of the invention, the bush and the tree can be attached to each other in simple way under positive coupling so when said bush and said tree have a recess aligned to receive with exact adjustment a retaining piece that joins the bushing and the shaft under positive coupling so and when the housing is configured to hold the retention piece in the recess when The locking device is locked. Being nestled on closing device must also be the tree and therefore the handle attached in one piece with said tree cannot be removed from the bushing or, therefore, from the housing.

According to another advantageous improvement of the invention, a dissociation of the positive coupling between the bush and the tree is configured as especially simple in the constructive aspect when the retention piece, being interlocked the closing device, is directly attached or indirectly by a latch that can be moved from the side outside of the housing. In this way, the piece of recess retention after device unlocking of closing and a movement of the latch. Then the handle together with the tree can be separated from the housing.

The latch can be arranged on a site of the housing easily accessible and far from the piece of retention when this retention piece rests on a pin movable by the latch and when the pin can be moved to a position that makes it possible for the retention piece to be withdrawal from recess.

According to another advantageous improvement of the invention, the movement of the retaining piece out or in the recess requires a construction cost especially reduced when the latch has a section cylindrical housed in the housing and an eccentric clamping of the pin and when the cylindrical section has means for the application of a rotating tool.

According to another advantageous improvement of the invention, seizure of the retention piece in the recess when said retention piece is configured as a ball and when a plane of separation between the bushing and the tree runs in the area of the middle of the piece of retention that looks towards the axis of the tree. In this way, the retention piece can be pressed radially out of the separation plane and therefore against the housing or pin retained by the pin.

The closing device according to the invention has especially high reliability when the bushing cooperates with The locking mechanism.

The closing mechanism makes possible a almost any combination of handles and locking mechanisms in its ends when between the bushing and a closing pallet that locked to the closing device a clutch is arranged operable by the second handle. In this way, you can associate with the second handle, for example, the closing device without request an access authorization or mechanical borjas of pin that must be operated by a key.

The closing device according to the invention is set as especially compact when the tree is configured as a hollow tree to receive components from clutch.

The invention admits numerous forms of execution. To further illustrate its basic principle, represented one of these forms in the drawing and describes it to continuation. They show in this drawing:

Figure 1, a longitudinal section through a closing device according to the invention, and

Figure 2, a section through the device of closure of Figure 1 along the line II-II

Figure 1 shows a closing device Built as a double profile closing bulb with a housing 1 and two handles 2, 3 opposite each other. The handles 2, 3 each one of them is fixed jointly in rotation on the ends of a core 4 housed in the housing 1 or a tree 13 attached to the core 4. In the center between the handles 2, 3 the core 4 has a locking pin 5 for locking or unlocking discretionary closing device. One of the handles 2 It is configured as a cuvette to house an electronic control 6. Control electronics 6 captures an authorization from access for the closing device. In the case of a access authorization control electronics 6 activates a locking mechanism 7 that generates a positive coupling so of the housing 1 with the core 4. The locking mechanism 7 has a locking latch 10 that can be moved by an electromagnet 8 into a recess 9. In the position drawn recess 9 is located on the opposite side of the locking latch 10. This Identify the open position of the closing device. To the make a 180º turn of the handle 2 in the shape of a bucket around its axis the locking latch 10 suddenly enters the recess 9. For power supply to the electronics of control 6 and to the locking mechanism 7 a battery has been arranged 11 on the handle 2 that hugs the control electronics 6.

Access authorization can be obtained from multiple ways For example, control electronics 6 can receive and evaluate a code from a transponder subject in front of the cuvette-shaped handle 2 or inside a reading device not represented. The code is compared with the contents of a memory and, depending on the comparison, the access authorization As an alternative to this, the electronics of control can also request a numerical combination with a keyboard not shown either, arranged next to the device closure, or can support a device unlocking Close only during a time window.

The housing 1 has a flange 12 to hold the control electronics 6. In the center of tab 12 extends tree 13 attached to core 4. Tree 13 is configured as a hollow tree and is welded with the bottom area of the handle 2 in the shape of a bucket. Tree 13 is united in solidarity in rotation with a socket 14 in the normal position drawn from the closing device The bushing 14 is joined jointly in rotation with the closing pin 5 through a clutch 15 and it has the recess 9 for the locking mechanism 7. Thus, the handle 2 that hugs the control electronics 6 can be spun only when the locking mechanism is unlocked lock 7.

The bush 14 and the tree 13 have a recess aligned 16. In the recess 16 a retaining part is arranged 17 to establish a positive coupling between the tree 13 and bushing 14. In the unlocked position drawn from the locking mechanism the retention piece 17 rests on a pin 18. Pin 18 is held by a latch 19 with a eccentric 20. The latch 19 is housed with a cylindrical section 21 in the housing 1. By turning the latch 19 you can move the pin 18 down, so that the retention piece 17 the recess 16 can be exited. In this way, the joint is released rotating joint of bushing 14 with shaft 13. The cuvette-shaped handle 2 can thus be removed from the housing 1 together with tree 13 to, for example, change the battery eleven.

By turning the core 4 through the second handle 3 the clutch 13 can be separated and therefore the solidarity joint in rotation between the pallet of closure 5 and socket 14. The device can be unlocked closing from this side regardless of an authorization of access. Of course, the end of the core 4 facing the control electronics 6 can also present, instead of the second handle 3, a closing channel for a key and borjas de Mechanical pin or other electronic locking mechanism.

Figure 2 shows a sectional representation through the closing device of Figure 1. It can be seen here that recess 16 for retaining part 17 is configured so that it narrows radially inwards. The retention piece 17 is configured as a ball. The plane of separation between shaft 13 and bush 14 runs in half upper part of the retaining part 17. Thus, when produced a rotation of the bush 14 with respect to the shaft 13, the piece of retention 17 is pressed down against pin 18. To that the retention piece 17 be removed from at least the part of the recess 16 existing in tree 13, latch 19 has to be rotated 180º as shown in Figure 1. To this end, latch 19 has a recess 22 intended for application of a screwdriver.

Claims (12)

1. Closing device with a movable core (4) in a housing (1) and intended to discretely interlock or unlock the closing device, with a bucket-shaped handle (2) to transmit a movement to the core (4) and with a control electronics (6) arranged inside the handle (2) to activate a locking mechanism (7), the locking mechanism (7) being formed to produce or undo a positive coupling between the core (4) and the housing (1), characterized in that the control electronics (6) and the locking mechanism (7) are jointly connected in rotation with the housing (1), because a shaft (13) connected to the core (4) is inextricably connected with the handle (2) or is screwed from within with the area of the bottom of the handle (2), because the core (4) has a bushing (14) connected with the shaft (13) and can be released only in the unlocked position of the closing device, and because the casq nail (14) is axially guided in the housing (1). 2. Closing device according to claim 1, characterized in that the housing (1) has a flange (12) that hugs the core (4) and is intended to hold the control electronics (6). 3. Closing device according to at least one of the preceding claims, characterized in that the shaft (13) is constructed in one piece with the handle (2). 4. Closing device according to at least one of the preceding claims, characterized in that the bushing (14) and the shaft (13) have an aligned recess intended to receive with exact adjustment a retaining piece (17) that joins the bushing (14 ) with the shaft (13) by means of a positive coupling of form, and because the housing (1) is configured to hold the retaining part (17) in the recess (16) when the closing device is locked. 5. Closing device according to at least one of the preceding claims, characterized in that the retaining part (17), when the closing device is unlocked, is directly or indirectly retained by a latch (19) that can be moved from the side outside of the housing (1). 6. Closing device according to at least one of the preceding claims, characterized in that in the locked position of the closing device the retaining part (17) is arranged in a rotated or displaced position with respect to the latch (19). 7. Closing device according to at least one of the preceding claims, characterized in that the retaining part (17) rests on a pin (18) movable by the latch (19) and because the pin (18) can be moved to a position which makes it possible for the retention piece (17) to be removed from the recess (16). 8. Closing device according to at least one of the preceding claims, characterized in that the latch (19) has a cylindrical section (21) housed in the housing (1) and an eccentric (20) for holding the pin (18), and because the cylindrical section (21) has means to apply a rotating tool. 9. Closing device according to at least one of the preceding claims, characterized in that the retaining part (17) is configured as a ball and that a separation plane between the bushing (14) and the shaft (13) runs in the area from the middle of the retention piece (17) that faces the shaft of the tree (13). 10. Closing device according to at least one of the preceding claims, characterized in that a clutch (15) is arranged between the bushing (14) and a locking pin (5) that engages the closing device, which can be operated by a second handle (3). 11. Closing device according to at least one of the preceding claims, characterized in that the shaft (13) is configured as a hollow shaft for receiving clutch components (15). 12. Closing device according to at least one of the preceding claims, characterized in that the bushing (14) cooperates with the locking mechanism (7).