ES2849223B2 - Double latch electric lock set - Google Patents

Description

DESCRIPTION

Double latch electric lock set

field of invention

This invention relates to an automatic lock assembly intended for electrical opening controlled by a strike plate and a lock that allows it to be opened by means of mechanical elements such as, for example, by means of a handle, a cylinder and a key, and by means of an electrical impulse.

The lock of said set consists of a double latch, a lock activator pin and a bell ring. In turn, the lock assembly of the present invention comprises a striker that allows, by means of a rotating fork actuated through an electromagnet, the longitudinal sliding of a sliding occluder that will allow or not the insertion of the locking activation pin, lock or unlock. the lock.

State of the prior art

At present and as a reference to the state of the art, the use of sets of electric locks is known that each time the door is closed they project or activate the lever and that due to the configuration of said lever require a high enough force to compensate for the usual action of the spring or spring against which it acts, and requiring excessive force compensation that can even lead to a malfunction of the mechanism. In addition, in this type of lock it is necessary to use more than one element against which the spring acts in order to compensate for the high forces generated in the mechanism and actuate the lock. This type of mechanism is described, for example, in Patent No. 201431161.

On the contrary, the electric lock assembly of the present invention allows the use of electromagnets with little axis travel since the mechanism incorporated in the strike, due to its configuration, generates very small or almost negligible torques to overcome, thus achieving and, with an electromagnet with little axis travel, the movement of the rotating fork that, through its wedge stop wall, unlocks the lock.

On the other hand, in the double latch electric lock assemblies used today, the locking activation pin in its relationship with the striker mechanism requires a high force in its spring or driver. This fact also translates into length of their inclined planes and all this means that electric locks have a hard spring and a critical clearance, that is, they are only capable of absorbing clearance variations of an estimated range between 2.5 millimeters and 4 millimeters. This is aggravated by the fact that, by having to use a door closer, the greater its force in the door closing manoeuvre, on the other hand it is a hindrance to the door opening manoeuvre, which generates consequent problems in the possibility of installing the lock in the usual maneuver of use.

In addition, sometimes, when working with such critical clearance ranges (variation of only 1.5 millimeters) and, due to, for example, the temperature variations that occur at certain times of the year such as summer, the dimensions of the door and a malfunction of the lock may occur.

Explanation of the invention and advantages

In contrast to this state of the art, the present invention refers to a double latch electric lock assembly consisting of a lock with a locking activation pin that moves the bell vertically from a position of use, between a locking position or release of the movement of the double latch and that acts opposite a strike located in the frame of the door and container of the receiving window of the double latch and the receiving window of the locking activation pin in which the receiving window of the pin is in the striker The locking activator comprises a spring-loaded sliding occluder provided with a lateral step capable of facing the wedge stop wall of the rotating fork comprising a wedge and an activating arm capable of varying its angular position depending on the excited state or not the electromagnet.

Thanks to this configuration, the door is opened by the user and the use of lower force door closers is necessary. Since the force that the sliding occluder spring has to withstand is less due to the configuration of the rotary fork, a lower strength spring is required. Additionally, it is possible to work in a range of larger clearances (between 0 and 6 millimeters) unlike the lock sets currently used, which have a high sensitivity to clearance and at the same time are very hard, which guarantees correct operation. of the lock assembly in different conditions and/or assemblies.

Another feature of the invention is that the swivel fork wedge has a wedge stop wall and a wedge slide wall.

Thanks to this configuration, the force that must be applied to unlock the lock is allowed to be much less than in the currently used lock assemblies, allowing the use of smaller electromagnets and ensuring a correct improvement of the lock assembly.

Another feature of the present invention is that the activator arm is adjustable in length and in accordance with the stroke of the electromagnet to be used.

Thanks to this peculiarity, the lock assembly is more versatile since with different dimensions of the electromagnet, and depending on its strength, it is possible to vary the length of the activator arm and obtain small torques in the mechanism.

Another characteristic of the invention is that, with the rotating fork in the unlocking angular position, the force of the spring of the locking activator pin is opposed to the force of the spring of the sliding occluder and the advance of the locking activator pin raises the bell passing to the unlocked position.

In this way, the force of the occluder spring, only, has to be slightly less than the force of the spring or driver of the locking activation pin in order to raise the bell and thus unlock the lock. Therefore, thanks to the configuration, with a small force it is enough to overcome the spring force of the sliding occluder.

Finally, another particularity of the invention is that the inclusion of a rotating part with a slotted prism accessible through the edge of the lock and a flange with a cam configuration supported on a projection of the bell ring and capable of rotating position keeping the lock raised is envisaged. bell in situation of unlocking the lock.

Thanks to the rotating part it is possible to unlock the lock depending on the needs in different situations. That is, there are times of the day when a constant influx of people is expected in a portal, for example, a move, and thanks to the arrangement of the rotating piece with a slotted prism accessible through the edge of the lock and a flange of cam configuration supported on a projection of the bell ring it is possible to block the lock without the unlocking of the lock depending on the lock activator pin and without the need to annoy an external person so that they have to open the door constantly due to the continuous influx of people. On the contrary, at certain times, such as at night, a smaller number of people are expected to enter, obtaining the possibility of blocking the lock with the locking activation pin.

Drawings and references

In order to better understand the nature of the invention, the attached drawings show an arrangement that is merely illustrative and non-limiting.

Figure 1 shows an elevation view of the lock assembly (1) in the locked position with the striker plate (6) and the lock (2) facing each other, in which the constituent elements of both the lock (2) and the lock can be seen. striker (6).

Figure 2 shows an elevation view of the lock assembly (1) in an intermediate locking position with the striker (6) and the lock (2) facing each other, in which the constituent elements of both the lock (2 ) and the striker (6).

Figure 3 shows an elevation view of the lock assembly (1) in an unlocked position with the striker (6) and the lock (2) facing each other, in which the constituent elements of both the lock (2) and the lock (2) are observed. as well as the striker (6).

Figure 4 shows an enlarged view of the electromagnet (13), the rotating fork (12) and the sliding occluder (9) with the side step (11) in the locking position of the lock (2) and by means of a dashed line the sliding wall. wedge (12c).

Figure 5 shows an enlarged view of the electromagnet (13), the rotating fork (12) and the sliding occluder (9) with the lateral step (11) in an intermediate position of blocking the lock (2) and by means of a dashed line the wedge sliding wall (12c).

Figure 6 shows an enlarged view of the electromagnet (13), the rotating fork (12) and the sliding occluder (9) with the side step (11) in the unlocking position of the lock (2) and by means of a dashed line the sliding wall. wedge (12c).

Figure 7 shows an assembly view of the electromagnet (13), the rotating fork (12) and the sliding occluder (9) with the lateral step (11) and in which the wedge (12a) is observed with greater precision and in dotted line wedge stop wall (12b) and wedge slide wall (12c) of swivel yoke (12).

Figure 8 shows the lock (2), both in the locked position and in the unlocked position, in which an enlarged detail of the rotating part (14) can be seen,

Figure 9 shows an exploded view of the striker (6) in which all its constituent elements can be seen.

Figure 10 shows an exploded view of the lock (2) in which all its constituent elements can be seen in turn.

The following references are indicated in these figures:

1. Lock assembly

2. lock

3. Lock activator pin

4. Bell

4a. bell protrusion

5. Double latch

6. striker

7. Double latch receiving window

8. Lock activator pin receiving window

9. Sliding occluder

10. Pier

11. Side step

12. Rotating fork

12th Crib

12b. wedge butt wall

12c. wedge sliding wall

12d. activator arm

13. Electromagnet

14. Rotating piece

14 to. slotted prism

14b. walloon

15. nape

Disclosure of a preferred embodiment

In relation to the drawings and references listed above, the attached drawings illustrate a preferred arrangement of the object of the invention, referring to an electric lock assembly (1) with a double latch (5) consisting of a lock (2) with a locking activation pin (3) that vertically moves the bell (4) from the position of use between a locking position or release of the movement of the double latch (5) and that acts opposite a striker (6) located in the door frame and container of the receiving window of the double latch (7) and the receiving window of the locking activating pin (8) in which in the striker (6) the receiving window of the locking activating pin (8) comprises a sliding occluder (9) loaded with a spring (10) and provided with a lateral step (11) capable of facing the wedge stop wall (12b) of the rotating fork (12) comprising a wedge (12a) and an activator arm (12d) capable of varying its angular position according to the excited state or not of the electromagnet (13).

As can be seen both in Figure 1 and in Figure 4 in greater detail, when the electromagnet (13) is not activated and therefore is not in contact with the activator arm (12d) of the rotating fork (12), the The lock (2) is in the blocking position, with the wedge stop wall (12c) preventing longitudinal sliding of the sliding occluder (9) as it acts as a stop against the lateral step (11). As shown in figures 2 and 3 and the respective figures 5 and 6 corresponding to an intermediate locking position and the unlocking position of the lock (2), at the moment in which the electromagnet (13) is activated and makes contact with the activator arm (12d) of the rotary fork (12) and, thanks to its axis of rotation centered on the wedge (12a), the rotary fork (12) tilts and through the wedge sliding wall (12d) it moves longitudinally on the spring-loaded sliding occluder (9) (10), overcoming the lateral step (11), until the unlocking position of the lock (2). It is worth mentioning that said lateral step (11), as can be seen in Figure 7, is located on one side of the sliding occluder (10), that is, off-center with respect to the central axis of the sliding occluder (10). Thus, and due to the configuration of the rotating fork (12) having a wedge stop wall (12b) and a sliding wedge wall (12c), it is possible with a very small force produced by the electromagnet (13) to activation unlock the lock (2).

On the other hand, as the activating arm (12d) can be sized in length and in accordance with the stroke of the electromagnet (13) to be used and, which can be electric or electronic and whose circuit is capable of being activated by means of a remote control, It allows to have less axis travel and the use of electromagnets of a smaller size. Therefore, in this way a very versatile lock assembly (1) is obtained through which, with different dimensions of the electromagnet (13) and depending on its strength, it is possible to vary the length of the activator arm (12b) of the fork swivel (12) and obtain very low torques in the mechanism as a whole.

In addition, when the rotating fork (12) is in the unlocking angular position, the force of the spring of the locking activation pin (3) is opposed to the force of the spring (10) of the sliding occluder (9) and the advance of the pin lock activator (3) raises the bell (4) to the lock position. Thus, the force of the spring (10) of the sliding occluder (9) has to be only slightly less than the force of the spring or driver of the locking activation pin (3) so that the bell (4) rises vertically and thus unlocks the lock (2). Therefore, with a very small force it is enough to overcome the force of the actuator of the locking activation pin (3), which ensures a smooth and reliable closure.

Subsequently, as can be seen in figure 8, the inclusion of a rotating part (14) is provided with a slotted prism (14a) accessible through the edge of the lock (2) and a flange (14b) with an inverted configuration. cam supported on a projection of the bell ring (4a) and capable of being rotated into position keeping the bell ring raised when the lock is unlocked. In this way, in situations in which a continuous influx or constant passage of people is expected, thanks to the rotating part (14) made up of a slotted prism (14a) and a cam-shaped flange (14b) that is supported on a projection of the bell ring (4a) and, as it is accessible through the edge of the lock (2), the bell ring (4) remains raised in the unlocking position of the lock (2) and users can enter without the need to having to bother someone else to open the door for them. Additionally, and due to the possibility of turning the rotating part (14) in situations in which there is less influx of people to the portal, such as during the night, it is possible to keep the bell (4) lowered, that is to say , in a locked situation of the lock (2) and in which the unlocking of the lock (2) is achieved with the activation of the lock activation pin (3).

Spatial allusions (up-down, top-bottom, front-back...) must be interpreted as referring to the mechanism in its operating position; in this case, since it is a lock, it will be located in a vertical position on the door and at the same level as the vertical strike plate located on the door frame.

Variations in materials, shape, size and arrangement of the component elements, described in a non-limiting manner, do not alter the essence of this invention, this being sufficient to proceed with its reproduction by an expert.

Claims (5)

1§.- Electric lock assembly (1) with double latch (5) composed of a lock (2) with a locking activator pin (3) that vertically moves the bell (4) between a blocking position or release of the movement of the double latch (5) and that acts opposite a striker (6) located in the door frame and container of the receiving window of the double latch (7) and the receiving window of the activating python lock (8) characterized in that in the striker (6) the receiving window of the locking activator pin (8) comprises a sliding occluder (9) loaded with spring (10) and provided with a lateral step (11) capable of facing each other to the wedge stop wall (12b) of the rotating fork (12) comprising a wedge (12a) and an activating arm (12d) capable of varying its angular position depending on whether or not the electromagnet (13) is excited. 2§.- Electric lock assembly (1) with double latch (5), according to claim 1, characterized in that the wedge (12a) of the rotating fork (12) has a wedge stop wall (12b) and a sliding wedge wall (12c). 3§.- Electric lock assembly (1) with double latch (5), according to the previous claims, characterized in that the activator arm (12d) is scalable in length and in accordance with the stroke of the electromagnet (13) to be used. 4§.- Electric lock assembly (1) with double latch (5), according to the previous claims, characterized in that with the rotating fork (12) in the unlocking angular position, the force of the spring of the locking activation pin (3 ) is opposed to the force of the spring (10) of the sliding occluder (9) and the advancement of the locking activation pin (3) raises the bell (4) passing to the locking position. 5§.- Electric lock assembly (1) with double latch (5), according to the previous claims, characterized in that the inclusion of a rotating part (14) with a slotted prism (14a) accessible by the edge of the lock is provided (2) and a cam-shaped flange (14b) supported on a projection of the bell ring (4a) and capable of rotating position keeping the bell ring (4) raised when the lock (2) is unlocked.