Security System for Locks

Abstract

The present relates to a security system for locks having a latch, a follower a recess, an interaction element configured for being inserted into the recess and a hinged locking element a hinge shaft, a support portion and a locking portion.

Claims

1. A security system for locks, wherein the lock comprises: a latch, a follower configured to rotate and transmit an opening movement to the latch, wherein the follower comprises a recess, and an interaction element configured for being inserted in the recess of the follower, said security system comprises a hinged locking element, said hinged locking element comprising a hinge shaft, a support portion and a locking portion, said hinged locking element being configured to rotate about the hinge shaft and lock the interaction element by means of the locking portion.

2. The security system for locks according to, wherein the hinged locking element is sized so that it meets the following condition: $L1H>L2X$ wherein: (L1) is the distance between the hinge shaft and the first point of contact of the locking portion with the interaction element; (H) is the minimum distance that the interaction element moves to allow the movement of the follower; (L2) is the distance between the hinge shaft and a support point, configured for supporting the support portion; (X) is the minimum displacement distance of the hinged locking element for locking the interaction element after the rotation thereof about the hinge shaft.

3. The security system for locks according to, wherein the follower comprises a drive follower and a transmission follower.

4. The security system for locks according to claim 3, wherein the recess is in the drive follower.

5. The security system for locks according to wherein the mass of the support portion of the hinged locking element is greater than the mass of the locking portion of the hinged locking element.

6. A lock comprising a latch, a follower configured to rotate and transmit an opening movement to the latch, wherein the follower comprises a recess, and an interaction element configured for being inserted into the recess of the follower, it further comprises a security system according to.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0048] What follows is a very brief description of a series of drawings that aid in better understanding the disclosure, which are expressly related to an embodiment of said disclosure and are presented by way of non-limiting examples of the same.

[0049] FIG. 1 is a cross-sectional view of a security system for locks according to the present disclosure, in particular for a lock having a locking mechanism, wherein the interaction element does not immobilize the follower of the lock;

[0050] FIG. 2 is a cross-sectional view of the security system of FIG. 1, wherein the interaction element is immobilizing the follower of the lock;

[0051] FIG. 3 is a cross-sectional view of the security system of FIG. 1, wherein, after a vibration of sufficient intensity, the hinged locking element has been activated for locking the interaction element;

[0052] FIG. 4 is a cross-sectional view of a security system for locks according to the present disclosure, in particular for a lock having a clutch mechanism, wherein the interaction element does not immobilise the follower of the lock;

[0053] FIG. 5 is a cross-sectional view of the security system of FIG. 4, wherein the interaction element is immobilising the follower of the lock; and

[0054] FIG. 6 is a cross-sectional view of the security system of FIG. 4, wherein, after a vibration of sufficient intensity, the hinged locking element has been activated for locking the interaction element.

NUMERICAL REFERENCES OF THE DRAWINGS

[0055] (1) Latch (of the lock); [0056] (2) Follower (of the lock); [0057] (2a) Drive follower; [0058] (2b) Transmission follower; [0059] (3) Recess (provided in the follower); [0060] (4) Interaction element; [0061] (5) Hinged locking element; [0062] (5a) Support portion (of the hinged locking element); [0063] (5b) Locking portion (of the hinged locking element); [0064] (6) Hinge shaft; [0065] (7) Spring responsible for loading the latch; [0066] (L1) Distance between the hinge shaft and the first point of contact of the locking portion with the interaction element; [0067] (H) Minimum distance that the interaction element moves to allow the movement of the follower; [0068] (L2) Distance between the hinge shaft and a support point configured for supporting the support portion; [0069] (X) Minimum displacement distance required to lock the interaction element by the hinged locking element after the rotation thereof about the hinge shaft; and [0070] () Angle of rotation of the locking portion.

DESCRIPTION OF THE INVENTION

[0071] FIG. 1 shows an embodiment of a security system for a lock having a follower according to the present disclosure, the same having a locking mechanism.

[0072] Said lock is provided with a latch (1) loaded by a spring (7), which pushes the latch (1) so that it is inserted into a hole provided in the door frame, keeping the door closed. The lock is also provided with a follower (2) responsible for transmitting the movement to the latch (1), during the opening of the door, to extract it from the hole in which it was previously housed and thus open the door.

[0073] The security system according to the disclosure comprises a recess (3) made in the same follower (2), as shown in FIG. 2. It also shows an interaction element (4) intended for being inserted into the recess (3).

[0074] In the configuration illustrated in FIG. 1, said interaction element (4) is in an unlocked position, i.e., it is not housed inside the recess (3), so that it is possible to open the door. This configuration corresponds to the case in which the lock receives an authorized opening order.

[0075] In addition, the security system according to the disclosure is provided with a hinged locking element (5) provided with a hinge shaft (6). The hinged locking element (5) further comprises a support portion (5a) and a locking portion (5b).

[0076] FIG. 2 shows the security system of FIG. 1, in a configuration wherein the interaction element (4) is in its locked position, i.e., it is housed in the recess (3) such that it prevents the rotation of the follower (2) and thus, the opening of the door. Said figure further illustrates the geometric distances L1 (distance between the hinge shaft (6) and the point of the locking portion (5b) that makes contact with the interaction element (4)), L2 (distance between the hinge shaft (6) and the resting point of the support portion (5a)), X (minimum rotation distance required to lock the interaction element (4)) and H (distance that the interaction element (4) is displaced to allow the movement of the follower (2)) that geometrically determine the hinged locking element (5).

[0077] Lastly, FIG. 3 shows the security system of FIG. 1 when a malicious vibration of sufficient intensity has occurred to activate the hinged locking element (5). In this case, the vibration causes the hinged locking element (5) to rotate about the hinge shaft (6), such that the locking portion (5b) comes into contact with the interaction element (4) preventing same from coming out of the recess (3), thus keeping the follower (2) locked and avoiding an unauthorized opening of the lock.

[0078] Also illustrated, with the reference (a), is the angle described by the hinged locking element (5) during this rotational movement.

[0079] FIG. 4 shows an embodiment of a security system for a lock having a follower according to the present disclosure, the same having a clutch mechanism.

[0080] Said lock is provided with a latch (1) (not depicted), which is inserted into a hole provided in the door frame, keeping the door closed. The lock is also provided with a follower (2) responsible for transmitting the movement to the latch (1), during the opening of the door, to extract it from the hole in which it was previously housed and thus open the door. In this embodiment, the follower comprises a drive follower (2a) and a transmission follower (2b).

[0081] The security system according to the disclosure comprises a recess (3) made in the drive follower (2a), as shown in FIG. 5. It also shows an interaction element (4) intended to be housed in the recess (3).

[0082] In the configuration illustrated in FIG. 4, said interaction element (4) is in an unlocked position, i.e., it is housed inside the recess (3), so that the drive follower (2a) and the transmission follower (2b) are connected to each other, due to the interaction element (4), so that it is possible to open the door. This configuration corresponds to the case in which the lock receives an authorized opening order.

[0083] In addition, the security system according to the disclosure is provided with a hinged locking element (5) provided with a hinge shaft (6). The hinged locking element (5) further comprises a support portion (5a) and a locking portion (5b).

[0084] FIG. 5 shows the security system of FIG. 4, in a configuration wherein the interaction element (4) is in its locked position, i.e., it is outside the recess (3) such that it prevents the rotation of the follower (2), since the drive follower (2a) and the transmission follower (2b) are not connected to each other, and thus, the door is prevented from opening.

[0085] Said figure further illustrates the geometric distances L1 (distance between the hinge shaft (6) and the point of the locking portion (5b) that makes contact with the interaction element (4)), L2 (distance between the hinge shaft (6) and the resting point of the support portion (5a)), X (minimum rotation distance required to lock the interaction element (4)) and H (distance that the interaction element (4) is displaced to allow the movement of the follower (2)) that geometrically determine the hinged locking element (5).

[0086] Lastly, FIG. 6 shows the security system of FIG. 4 when a malicious vibration of sufficient intensity has occurred to activate the hinged locking element (5). In this case, the vibration causes the hinged locking element (5) to rotate about the hinge shaft (6), such that the locking portion (5b) comes into contact with the interaction element (4) preventing same from being inserted into the recess (3), thus keeping the follower (2) locked, by not allowing the connection between the drive follower (2a) and the transmission follower (2b) and avoiding an unauthorized opening of the lock.

[0087] Also illustrated, with the reference (a), is the angle described by the hinged locking element (5) during this rotational movement about the hinge shaft (6).

[0088] The disclosure should not be limited to the particular embodiment described herein. Persons skilled in the art can develop other embodiments in view of the description made herein. Accordingly, the scope of the disclosure is defined by the following claims.