ES2388119T3 - Universal security lock - Google Patents

Abstract

Universal security lock comprising: at least one latch (2) and at least one pin (3), which can perform a translation movement from a configuration in which they protrude from the front edge (5) of the lock to a configuration for accommodation inside the respective internal seats; at least one retractable piston (6), which is elastically forced to protrude from the front edge (5) of said lock (1), said piston (6) being adapted to block said at least one latch (2) when arranged in the outgoing configuration; a support (7) that is movably coupled to the outer box-shaped body (8) of said lock (1) and is functionally associated with at least one of said pins (3); a contoured plate (10) that is functionally associated with said piston (6), pivots with respect to said box-shaped body (8) and can rotate with respect to a pivot axis (11) by the action of said piston ( 6), said plate (10) having an opposite end, and which is close to a blocking part (9) that is connected in a articulated manner to said piston (6) and adapted, even indirectly, to block said at least one latch (2), said plate (10) being coupled to said latch (2) for its activated interlocking; characterized in that it further comprises a panel (12), which pivots with respect to said box-shaped body (8) and is coupled with a plate (10) and is provided at one of its ends (13) of said locking part (9) , the retraction of said piston (6) causing a rotation of said plate (10) with respect to the pivot axis (11) and an approximation of said locking part (9) of said panel (12) butt against a tongue (15) of said latch (2) for locking said latch in the extracted configuration, said panel (12) comprising a projection (16) that can slide into a grooved profile (17) of said support (7) that is functionally associated with said at least a pin (3), producing the translational movement of said support (7), as a consequence of the retraction of said pin (3), a movement of said projection (16) with the consequent rotation of said plate (10) around the sole of pivoting (11) and a separation of said blocking part (9) d and said panel (12) from said tab (15) of said latch (2) to release said latch.

Description

Universal Security Lock

5 Technical field

The present invention relates to a universal security lock.

Prior art

10 The advance of the locks is closely linked to the advance of the methods for handling.

It is known that potential thieves use leaf-shaped elements to try to force the opening of a lock installed in a door: this can be done by inserting an element between the frame and the edge of the door, in order to move (in in some cases) the latch or the pin, causing it to retract from its seat inside the lock and allowing the door to open.

Therefore, the insertion of sheet-shaped elements (for example sheets and / or credit cards) makes conventional locks provide substantially limited security.

20 The new types of safety locks comprise suitable pistons that leave the front part of the lock: when the piston is in the removed configuration (corresponding to the open door), the latch can be removed (retract in the respective seat of the lock) by simply pressing it to force the spring that keeps it protruding; when, on the contrary, the piston is in the retracted configuration

25 (housed inside the lock, because the door is closed and its end rests against the front of the faceplate that faces the edge of the lock and is close to it), the latch is locked and cannot be retracted by pressing it. The only way to release the latch (in this state in which the piston is retracted) is by operating the handle or (in cases where the lock incorporates it) the key.

30 The malicious person who tries to commit a robbery using a leaf-shaped element will find it impossible due to the blocking action provided by the retracted piston.

This type of lock can also be used in the case of a single-leaf door equipped with a panic handle (or panic bar).

35 From the outside, the latch could only be released using the key, while from the inside, by operating the lever (or the panic bar) the latch can always be retracted.

Therefore, this type of lock allows a high level of protection against robbery actions and, at the same time, can be installed on single-leaf doors for emergency exits with associated panic handles (and / or panic bars).

However, in the case of two-leaf doors the same results cannot be achieved.

45 In fact, while the actuation of the handle (or bar) of the main blade drives (in a manner similar to that already described) the retraction of the latch, this retraction cannot be performed by operating the handle (or bar) of the secondary leaf and the lock does not open, keeping both leaves in the closed condition.

It is clear that this condition does not meet the requirements of an emergency exit.

50 Document DE 101 24 364 A1 discloses a lock with safety features comprising an auxiliary piston. Document DE 3032080 discloses a two-leaf door lock with an emergency exit function.

55 Exposure of the invention

The objective of the present invention is to provide a universal security lock that can be operated for opening both by means of the handle (or bar) of the sheet on which it is installed, and by means of the handle (or bar) of the secondary leaf in which your latch is attached.

For this purpose, an objective of the present invention is to provide a universal security lock suitable also for movement (and retraction, if the handles and / or the bars of the main blade and / or the secondary blade are operated) of any pin, to ensure emergency opening.

Another objective of the present invention is to provide a universal security lock that has a reduced cost, is relatively simple to provide in practice and has a secure application.

This purpose and these objectives, as well as others that will become more clearly apparent below, are achieved by means of a universal security lock according to the present invention, which has the characteristics indicated in claim 1.

Brief description of the drawings

Other features and advantages of the present invention will be apparent from the following detailed description of a preferred, but not limiting, embodiment of a universal security lock according to the invention as defined in the claims, illustrated by way of title. non-limiting example in the attached drawings, in which:

Figure 1 is a side view in partial section of a universal safety lock according to the invention, in a state in which the piston is retracted and the pins protrude;

Figure 2 is a partial sectional side view of a universal safety lock according to the invention, in a state in which the piston protrudes and the pins are retracted;

Figure 3 is a partial sectional side view of a universal safety lock according to the invention, in a state in which the piston is retracted and the pins are retracted;

Figure 4 is a partial sectional side view of a universal security lock according to the invention, in a state in which the piston is retracted, the latch is retracted and the pins are retracted;

Figure 5 is a partial sectional side view of a universal security lock according to the invention, in a state in which the piston protrudes and the pins are retracted;

Figure 6 is a plan view of a plate of a universal security lock according to the invention;

Figure 7 is a plan view of a spring of a universal security lock according to the invention;

Figure 8 is a plan view of a plate of a universal security lock according to the invention; Figure 9 is a plan view of a support of a universal security lock according to the invention;

Figure 10 is a plan view of the bar of a latch of a universal security lock according to the invention;

Figure 11 is a plan view of a piston that can be retracted from a universal security lock according to the invention.

Ways to practice the invention

45 Referring to the figures, reference number 1 generally designates a universal security lock.

The safety lock 1 comprises at least one latch 2 and at least one pin 3 (in particular, 50 a pin 3 is generally provided properly and additional pins, which are associated with suitable transmission elements 4 and protrude in areas that are more distant from door lock 1).

The latch 2 and the pins 3 can carry out a translation movement from a configuration in which they protrude from their front edge 5 to a configuration in which they are housed in the respective seats.

55 The lock 1 also comprises at least one retractable piston 6 that is elastically forced so that it protrudes from the front edge 5 of the lock 1.

The piston 6 is adapted to lock the at least one latch 2 when it is in the configuration that projects 60.

The lock 1 comprises a support 7 coupled to a box-shaped body 8: the coupling is of the type that ensures at least a degree of freedom of said support 7.

The support 7 is functionally associated with at least one of the pins 3 and is mechanically connected to a facing end, and arranged in proximity, to a part 9 connected together to the piston 6 and adapted to block the at least one latch 2.

The end connected to the support 7, during the retraction of the pin 3 associated therewith, is forced against the locking part 9 of the latch 2 to disengage said locking part 9 of said latch 2 and the consequent release of the part 9.

In its operation, the piston 6 is associated with a profiled plate 10, which pivots with respect to the box-shaped body 8 and can rotate with respect to its pivot axis 11 by the action of said piston.

The plate 10 is coupled to the latch 2 for its activated locking.

In particular, the lock 1 also comprises a panel 12 that pivots with respect to the box-shaped body 8 and is coupled to the plate 10.

The panel 12 is provided, at one of its ends 13, with part 9 to block the piston 6; therefore, the retraction of the piston 6 implies a rotation of the plate 10 with respect to the pivot axis 11 (this rotation takes place because the piston 6 no longer forces the plate 10 with an anti-clockwise rotation and the spring 14 can return it in the opposite direction) and an approach of the locking part 9 of the panel 12 that stops against a tongue 15 of the latch 2 to lock it in the extracted configuration.

The panel 12 comprises a projection 16 that can slide into a grooved profile 17 of the support 7: said grooved profile 17 is substantially made of a groove provided with at least one raised portion 18, designed to modify the passage of the projection 16 when slide inside. Alternatively, a grooved profile 17 could be provided that has an irregular shape (with folds) in order to obtain the same result.

The translation movement of the support 7, as a consequence of the retraction of the pin 3, causes a movement of the projection 16, by means of the action of the raised part 18, with the consequent rotation of the plate 10 (strongly coupled to the panel 12) on its pivot shaft 11 and a separation of the locking part 9 of the panel 12 of the tongue 15 of the latch 2 to release it.

The plate 10 comprises an upper peak 19 which substantially has a hook shape for its support against a transverse rod 20 which is connected together to the piston 6.

When a translation movement of the piston 6 takes place, an identical translation movement of the hook-shaped peak 19 and a consequent rotation of the plate 10 with respect to its pivot axis 11 can be observed.

In particular, when the door is opened, the piston 6 (protrudes from the edge 5) is removed and the tip is retracted

19: in fact, the rod 20 remains in the lower part 21 of the concavity of the spout 19 and the panel 12 coupled to the plate 10 is rigidly coupled by said plate 10, so that its locking part 9 is separated from the tongue 15 of the piston 6 (as shown in Figure 1).

When the door is closed (or, in any case, the piston 6 is held in the respective seat of the lock 1), the rod 20 separates from the bottom 21 of the concavity of the spout 19 and is close to its end 22 .

Thanks to the action of the spring 14, the plate 10 can rotate in the clockwise direction (referring, by way of example only, to the embodiment shown in the figure) and the panel 12 coupled thereto is coupled with rigid form by means of the plate 10 with its interlocking part 9 resting against the tongue 15 of the latch 2 for the corresponding interlocking.

It should be noted that the lock 1 according to the invention comprises a handle seat 23 provided with a shoulder 24 facing the locking part 9 and close thereto.

When the square pivot rotates, housed in the seat of the handle 23 and associated with said handle, the shoulder 24 is forced to rest against the part 9 (or next to it) to move it away from the tongue 15 of the latch 2, with the subsequent release of it.

Obviously, the lock also comprises a cylinder that is operated by a respective key and is designed to move said at least one pin 5: the movement of said pin 5 also involves the actions that consist of releasing the latch 2 using the support 7, which is subjected to a translation movement by means of the pins 5 and which acts on the plate 10 and the panel 12.

Therefore, the lock 1 according to the invention, if installed in a single-leaf door, can be used both with a handle of the traditional type, as with panic handles and / or panic bars.

Acting on the handle, the retraction of the latch 2 and the pins 3 occurs (in this case, the lock 1 may comprise suitable transmission elements intended for said purpose).

5 At the same time, maximum security against theft is guaranteed, because the retraction of the latch 2 cannot be achieved using flexible sheets inserted in the gap between the frame and the door: in fact, the latch 2 cannot return to the block 1 while the piston 6 is in a retracted configuration, unless the lever or cylinder is operated with the key, in order to achieve said result.

10 If an attempt was made to install latch 1 according to the invention on a two-leaf door, with known types of locks, panic handles and / or panic bars could not be installed on both sheets.

In fact, the secondary leaf could not be opened, because the latch 2 would remain in the configuration in which it protrudes, avoiding its opening.

With the lock 1 according to the invention, it is possible to use both a handle of the traditional type and panic handles and / or panic bars on both sheets.

The panic lever (panic bar) arranged on the secondary blade could be operated by a pusher

20 on the handle 3, causing it to retract: in this state, the retrograde translation movement of the pin 3 would cause the consequent translation movement of the support 7. Said support translation movement 7 would force said projection to move along the grooved profile 17 changing, as a consequence, the trajectory in the elevated part 18.

25 The change of trajectory would ensure a rotating movement of the panel 12, which would move the locking part 9 away from the tongue 15, releasing the latch 2 and allowing the correct panic operation.

Thus, it has been shown that the invention achieves the proposed purpose and objectives.

Numerous modifications and variations can be introduced into the invention thus conceived, all within the scope of the appended claims.

All the details can be additionally replaced by other technically equivalent ones.

In practice, the materials used, as well as the shapes and sizes, can be any according to the requirements, without departing from the scope of protection of the appended claims.

When the technical characteristics mentioned in any claim are followed by reference signs, said reference signs have been included for the sole purpose of increasing the intelligibility of the claims and, accordingly, said reference signs have no limiting effect. on the interpretation of each of the elements identified by way of example by them.

Claims (5)

1. Universal security lock comprising: at least one latch (2) and at least one pin (3), which can perform a translation movement from a configuration in which they protrude from the front edge (5) of the lock up to a configuration for its accommodation inside the respective internal seats; at least one retractable piston (6), which is elastically forced to protrude from the front edge (5) of said lock (1), said piston (6) being adapted to block said at least one latch (2) when arranged in the outgoing configuration; a support (7) that is movably coupled to the outer box-shaped body (8) of said lock (1) and is functionally associated with at least one of said pins (3); a contoured plate

(10)

 which is functionally associated with said piston (6), pivots with respect to said box-shaped body (8) and can rotate with respect to a pivot axis (11) by the action of said piston (6), said plate presenting (10) an opposite end, and which is close to a blocking part (9) that is articulated connected to said piston (6) and adapted, even indirectly, to block said at least one latch (2), said plate (10) being coupled to said latch (2) for its interlock activated; characterized in that it further comprises a panel (12), which pivots with respect to said box-shaped body (8) and is coupled to said plate (10) and is provided at one of its ends (13) of said locking part ( 9), the retraction of said piston (6) causing a rotation of said plate (10) with respect to the pivot axis (11) and an approximation of said locking part (9) of said panel (12) butt against a tongue (15) of said latch (2) to lock said latch in the extracted configuration, said panel (12) comprising a projection (16) that can slide into a grooved profile (17) of said support (7) that is functionally associated with said at least one pin (3), producing the translational movement of said support (7), as a consequence of the retraction of said pin (3), a movement of said projection (16) with the consequent rotation of said plate (10) around its pivot axis (11) and a separation of said block part ueo (9) of said panel (12) from said tab

(fifteen)

 of said latch (2) to release said latch.

2.

Lock according to claim 1, characterized in that said plate (10) comprises an upper peak (19) having a substantially hook shape, to abut against a transverse rod (20) that is rigidly coupled to said piston (6), coinciding the translational movement of said piston (6) with an identical translational movement of said hook-shaped peak (19) and a consequent rotation of said plate (10) with respect to the pivot axis (11) of said plate.

3.

Lock according to claim 2, characterized in that said plate (10) can be moved from a first configuration, wherein said rod (20) rests on the lower part (21) of the concavity of said hook-shaped peak (19 ), and said panel (12) coupled thereto is rigidly coupled by said plate (10) with its interlocking part (9) separated from said piston (6), until a second configuration, wherein said rod

(20) is separated from the lower part (21) of the concavity of said hook-shaped peak (19) and is close to its end (22) and said panel (12) coupled thereto is forced by said plate ( 10) so that its interlocking part (9) rests against said latch (2) for the corresponding locking. 4. Lock according to one or more of the preceding claims, characterized in that it comprises a handle seat (23) provided with a shoulder (24) facing and which is close to said interlocking part (9), when the square pivot rotates, housed in said handle seat (23) and associated with said handle, said protrusion (24) is forced to rest substantially on said part (9) to move it away from the latch (2) with its consequent release. 5. Lock according to one or more of the preceding claims, characterized in that it comprises a cylinder that is operated by a respective key and designed to move said at least one pin (3).