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(11) | EP 2 927 401 A1 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | AUTOMATIC MECHANICAL LOCKING LATCH |
| (57) The automatic locking latch mechanism is located in a box (2) including a tongue
(3) in horizontal position, with a push spring (9) and a trigger (11) on its back
and with at least one deadbolt (22) with sheave (15) and spring (21) on the back,
in position parallel to the tongue (3), a deflection plate (1) in position vertical
to the tongue (3) and the lock plate's deadbolt (22), having at least one sliding
- guiding opening (13) of the deflection plate and the deflection plate (1) has a
notch (10) on its perimeter, in which the trigger (11) of the tongue (3) is attached,
of similar size. The box (2) has the same sliding - guiding openings (14) of the deadbolts.
In the door lock (6) a lever (7) is attached on the lock plate (17) of the lock (6),
and another lever (5) is attached to the handle (20) spindle (23). Its connection
with the simple mechanical latch is also possible. The connection of many automatic
mechanical latches together is possible as well. |
[0001] The invention belongs to the field of mechanics and in specific to the field of house door locks. There are many ways to secure your door when entering or leaving the house, such as mechanical or electronic locks, latches, padlocks. Except the latches, all the mechanical locks are key locks, and all the electronic ones operate by means of electric current, with the parallel use of the key.
[0002] At the current technical stage, a key is required to actuate a mechanical lock, which has to turn 1 to 6 times depending on the type, otherwise the door remains closed only with its tongue, which does not provide any security on its own.
[0003] At the same time, as for the mechanical latches of the current technical stage, they function and secure the door with a single movement from the inner side only, while their function is not accessible by the outer side. Security measures, such as the mechanical latch, which are not anyhow accessible by the owner - user from outside by using a key or by electronically disarming them, have the disadvantage of not being usable by the owner for securing the house from the outer side, when the user leaves. They also have the further disadvantage of danger for the owner, in case of accident or illness inside the house, when the mechanical deadbolt locking system is used.
[0004] As for the electronic locking systems and in specific the electronic locks, they automatically lock and unlock by an electric button or the handle or by remote control or access control, but they certainly have a cylinder, in order to unlock by key from the outer door side. At the same time, as for the electronic latches/deadbolts, commonly electronic deadbolts, they operate only by means of electric current and they lock/unlock automatically or with time delay only by electric power, by remote control and access control.
[0005] When locking latches are used, that is mechanical latches which faithfully transfer the locking/ unlocking movements of the lock (6) with deflection, i. e. on horizontal direction, there is the technical problem that they follow the locking/unlocking movement of the door key faithfully, and thus their arming/disarming follows the lock's arming/disarming; that is that they do not have any autonomy. Thus, the first technical problem is that the latch cannot lock, unless the lock set locks as well. And the second problem is that the unlocking of the latch even from the inner door side is actuated only by unlocking the lock set.
[0006] The present invention refers to an automatic mechanical deflection latch, which solves both of the above problems. In specific, the automatic mechanical deflection latch locks mechanically and automatically, extracting its safety deadbolts, i.e. by simply closing the door without locking it, each time the door closes, when the user either enters or leaves the house, without using a key, which is required in the case of the deflection latch mentioned above, which are used in the current mechanical locks. This is actuated by simply pressing the tongue upon a special latch, located on the door frame; this pressing leads to the automatic extraction of the security deadbolts. Thus, the first technical problem, that the lock has to lock by key so that the latch can lock as well, is solved.
[0007] From the inner side of the door, that is from inside the house, the disarming of the automatic mechanical deflection latch is actuated automatically, as it happens with an anti-panic bar, i.e. by simply pressing the door handle, the lock's tongue and the deadbolts are extracted simoultaneously and therefore the door opens. Thus, the second problem, that the unlocking of the deflection latch even from the inner side of the door requires to unlock the lock set, is solved as well.
[0008] From the outer side of the door, that is from outside the house, the disarming of the automatic mechanical deflection latch is actuated using the main lock key as follows: the user, thanks to the automatic mechanical deflection latch has left the house without locking, but only by closing the door, and thus, the deadbolts of the locking latch have been extracted and they have secured the door, while the door lock is unlocked. Upon his/ her return, the user first locks the door lock and this movement, thanks to the special lever attached to the main lock, causes the deadbolts' retraction back into the box. Immediately afterwards, the user unlocks the door lock, opens the door and enters the house. The course of the deadbolts is the same as that of a mechanical lock, which locks 2, 4, or 6 times, depending on the extension length of the lock deadbolts that the door manufacturer prefers.
[0009] The advantages of the automatic mechanical deflection latch are the following: without removing or replacing any existing lock system, the locking latch attaches to it, functioning with the existing door lock in parallel, through the contact of the outer moving parts of the lock, such as the handle and the lock set screw, with the deflection plate of the latch and two special levers of the automatic latch. It is placed and functions within the door and it is not visible neither from outside nor from inside the house.
[0010] As described above, a further advantage is that the user, when coming from outside, has to lock the main lock first to open the door, so that the deadbolts of the automatic mechanical deflection latch are withdrawn - retracted from the door frame, and afterwards the user has to unlock the main lock to open the door; thus, there is an increase in the movements and the time required to open the door, increasing the security level of the door, since the credibility and the security level of every lock is associated with the difficulty level and the time required to be forced open.
[0011] Moreover, there is the advantage that it offers instant keyless locking/ securing of the door, just like the electronic lock, either entering the house or leaving from it, since, by simply pressing the tongue, the deadbolts are extracted and the latch secures.
[0012] A further advantage is that, thanks to the special lever attached to the handle of the main lock, the disengagement of the deflection latch from inside the house is instant by simply using the door handle, just like an anti-panic bar.
[0013] Moreover, another advantage of the automatic mechanical deflection latch is that it can be transformed into an electronic system as well, adding an electromagnet with traction piston, for the remote opening of the main and controlled entrance doors using the intercom system in professional spaces or apartments. In case the electromagnet with traction piston is used, and the electromagnet is activated by remote control, there is the ability of using a door that from the inner side, it will unlock and open by a handle, but from the outer side it will open only by remote control of the electromagnet, with no position for a key. Yet another important advantage is that it can upgrade the door security even more, disconnecting the simple mechanical deflection latches from the lock and connecting them with the automatic mechanical locking latch through the set screw.
[0014] The drawings coming with the invention briefly depict the following points:
Drawing 1: The automatic mechanical deflection latch is depicted, when it functions
by the door handle (20) from the inner side of the door.
Figure 1 depicts the deflection latch out of order, disarmed with its deadbolts within
the box (2) before closing the door. The deflection plate has its bottom side obliquely
cut, or a regulator is attached to it, which varies the distance between the deflection
plate and the lever which disarms the mechanical latch.
Figure 2 depicts the deflection latch once the door closes, when its deadbolts are
out of the box and they have locked. The deflection plate moves downwards.
Figure 3 depicts the deflection latch when the door handle is pressed, and therefore
the deadbolts are retracted within the box and the door opens. The handle, thanks
to the special lever attached to it, pushes the deflection plate upwards, and therefore
the deadbolts desecure and they are extracted from the door frame.
Drawing 2. It depicts the automatic mechanical deflection latch, when it functions
using the door key, as the user is outside the house and he wants to open the door.
As depicted in figures 1, 2 and 3, the difference between drawing 2 and drawing 1
lies in the fact that here the upward movement of the deflection plate, which makes
the deadbolts desecure and get extracted from the door frame letting the door open,
takes place thanks to a special lever attached to the lock setscrew (figure 3) and
not by the door handle's lever.
Drawing 3. It depicts the automatic mechanical deflection latch, when it functions
via an electromagnet with traction piston, and when the user is outside the house
and he wants to open the door.
In this case, as depicted, the difference between drawing 3 and drawing 1 and 2 also
lies in the fact that here the upward movement of the deflection plate, which makes
the deadbolts desecure and get extracted from the door frame letting the door open,
takes place thanks to the electromagnet, which pulls the deflection plate from above
by the traction piston, while in drawings 1 and 2, this is actuated via push by the
door handle's lever and the lever of the lock setscrew, respectively.
Drawing 4. It depicts various components of the mechanism in detail.
Drawing 5. It depicts the image of the automatic mechanical deflection latch unlocked,
when the deadbolts are within the box.
Figure 1 depicts the front side with the automatic mechanical deflection latch unlocked.
Figure 2 depicts the front left side, from which the deadbolts and the tongue are
extracted, with the automatic mechanical deflection latch unlocked.
Figure 3 depicts the front right side, from which we are able to see the back part
of the deadbolts, with the automatic mechanical deflection latch unlocked and
Figure 4 depicts the back side with the automatic mechanical deflection latch unlocked.
Drawing 6. It depicts the automatic mechanical deflection latch locked.
Figure 1 depicts the front side with the automatic mechanical deflection latch locked.
Figure 2 depicts the front left side with the automatic mechanical deflection latch
locked.
Figure 3 depicts the front right side with the automatic mechanical deflection latch
locked and
Figure 4 depicts the back side with the automatic mechanical deflection latch locked.
Drawing 7. It depicts the function possibilities of the automatic mechanical deflection
latch.
Figure 1 depicts the connection possibility of more than one automatic mechanical
deflection latches to each other.
Figure 3 depicts the possibility for the automatic mechanical deflection latch to
be manufactured and to function with more than one deadbolts.
Drawing 8. It depicts the possibility for the simple mechanical latches to coexist
functionally with the automatic mechanical latch. Figure 1 depicts a lock firmly connected
via screws with two simple mechanical deflection latches, up and down.
Figure 2 depicts the automatic mechanical latch installation to the lock of drawing
1. The simple mechanical latches continue following the main lock's movements. The
automatic mechanical locking latch is installed and functions simultaneously with
them, without affecting their function.
Figures 3 and 4 depict a lock, on which an automatic mechanical deflection latch has
been attached to the upper part, and simple mechanical deflection latches are firmly
connected via a setscrew and they function simultaneously with it, following the movements
of the automatic mechanical latch.
In figure 3, the automatic latch has been unlocked and at the same time the simple
mechanical deflection latches have been unlocked as well.
In figure 4 the automatic locking latch has been locked and at the same time the simple
mechanical deflection latches have been locked as well.
Drawing 9. It depicts the door frame, where the door and the latch close.
Figure 1. The latch, upon which the tongue of automatic mechanical deflection latch
is pressed and the deadbolts are extracted and they lock.
Figure 2. The latch is stable on its upper part, while on its lower part it remains
free to move like a pendulum.
[0015] An exemplary description of the material integration of the inventing idea, with reference to the attached drawings.
[0016] As depicted in drawings 1, 4, 5, 7 and 8, the automatic mechanical deflection latch mechanism is located in a box (2) including one tongue (3) in horizontal position, with a push spring (9) and a trigger (11) on the back and at least one deadbolt (22) with sheave (15) and spring (21) on its back, positioned parallel to the tongue (3).
[0017] The tongue (3) and the deadbolt (22) may have smaller diameter at that part of their length, where the springs are attached (9 and 21 respectively).
[0018] The mechanism also has a deflection plate (1) in position vertical to the tongue (3) and the deadbolt (22) and it has at least one sliding - guiding opening (13) in diagonal order. In any case, the number of openings (13) is equal to the number of deadbolts (22), all diagonal and parallel to each other. The deflection plate (1) has a notch on its perimeter (10) in which the trigger (11) of the tongue (3) is attached, of similar size. The box (2) also has sliding - guiding openings (14), which are as many as the deadbolts (22), parallel to each other and in horizontal order.
[0019] In the door lock (6), a lever (7) is attached on the lock set screw (17). According to the current state of the art, as the lock set locks with the key, the lock setscrews are extracted from the top and bottom part of the lock. The lever (7) attached to the upper lock setscrew (17) transfers the upward movement of the lock setscrew (17), when the lock unlocks. And, a lever (5) is attached to the door handle (20) spindle (23) which, and when the handle (20) moves following a circular course around the spindle (23), the lever (5) also moves in a semi-circle with upward direction, pushing the deflection plate (1) upwards. These two components, the lever (5) and the lever (7), transfer the lock's (6) movements to the automatic latch.
[0020] In more detail, for the function and the unlocking of the automatic mechanical deflection latch, without electric power, but only by the door handle (20) from inside the house, the latch is placed above the door lock (6). The placement distance is such that, by pressing the handle (20), the lever (5) follows the required course, pushing the deflection plate upwards (1).
[0021] In any case, the lever (5) pushes the lock plate (1) upwards from its lower part at such distance, that the plate (1) goes up to its initial position and it is fastened by the tongue's (3) trigger (11) (drawing 1 figure 3). The rotation angle of the handle varies depending on the lock, and it usually varies from 20 to 40 degrees. Depending on the position, where the handle (20) spindle (23) is located on the lock (6), the distance, which covers - by pressing the handle - the handle's edge, varies as well. And since the lock plate (1) has got a certain stable distance/movement length, up and down, the enlongating regulator (29) is placed on the lower part of the deflection plate (1). The regulator (29) has two unequal sides, the small vertical side (A-B) and the large vertical side (C-D). It has its bottom side oblique, so that it adjusts (increase- decrease) the distance length of the lever's edge (5) to the distance length, which the lock plate (1) has to cover upwards, until it is fastened by the tongue's (3) trigger (11). If the course length of the lever's edge (5) is smaller than required for the plate (1) to be pushed upwards, fastened by the tongue's (3) trigger (11), the regulator (29) is positioned on the plate's edge (1) with the larger vertical side (A-B) towards the side, from which the mechanism deadbolts (22) are extracted (drawing 1); on the contrary, if the course length of the lever (5) is larger than needed, for the lock plate (1) to be pushed upwards, fastened by the tongue's (3) trigger (11), the regulator (29) is positioned on the plate's edge (1) with the smaller vertical side (C-D) towards the side, from which the mechanism deadbolts (22) are extracted (drawing 7). The seatback angle of the regulator's lower side (29) varies and it always adjusts exactly to the length requirements of the lever's course (5) depending on each particular lock (drawings 1, 4, 7).
[0022] The regulator (29) achieves the variation of the lock plate's length (1), thanks to its - at least one - rectangular openings, via which it is fastened on the deflection plate (1).
[0023] The deflection plate (1) can actuate the regulator's (29) function, when it has its lower side oblique with specific seatback angle, and it refers to cooperation with any specific lock, which has a certain length of the lever's course (5) (drawings 5 κα
6).
[0024] The invention functions without the regulator (29), when the length of the deflection plate's (1) course upwards is equal to the length of the upward lever's course (5) (drawings 2 and 3). In this case, the deflection plate (1) has an horizontal bottom side with zero inclination.
[0025] The lever (5) is the connection between the lock (6) and the automatic mechanical deflection latch, when the user wants to open the door by the handle, because the lever (5), moving via the spindle (23), transfers the movement of the lock's (6) handle (20) to the deflection plate (1). The shape or the length of the lever (5) is irrelevant, because it is adjustable depending on every different lock (6) model and depending on the certain position, where the handle (20) spindle (23) enters. The position of the lever (5) is always such, that, when the handle (20) is pressed, the lever (5) moves upwards via the handle (20) spindle, transferring the handle movement (20) to the deflection plate (1) of the automatic mechanical deflection latch, pushing the plate upwards (drawing 1, figure 3).
[0026] On the plate's (1) perimeter, there is a notch at such height that it is opposite to the trigger (11), including the trigger in its notch before the latch locks, when the deflection plate (1) is at the highest point allowed (drawing 1 figure 1) and the tongue (3) is not pressed and it is out of the box (2), while the deadbolts (22) are within the box (2). In other words, the notch (10) is located at a point on the perimeter, which is at the same height as the trigger (11), when the tongue (3) is out of the box (2) and the deadbolts (22) are disarmed. The notch (10) is of similar size with the trigger (11) and the trigger adjusts within the notch (10) fastening the deflection plate (1), when the bolt is disarmed. When the user pushes the door (6) to close (drawing 1, figure 1), the central deadbolt, which is the tongue (3) of the automatic deflection latch, is pressed on the closing fastener (24) of the door frame (25) (drawing 9), coiling the push spring at the same time (9) (figure 2). As the tongue (3) is pressed on the frame (25) closing fastener (24), the trigger (11) (figure 2), which is fastened on the tongue's back part (3) is pulled back, it is retracted from the notch (10) releasing the deflection plate (1) which starts moving downwards. Then the attached springs (21) are released and they coil on the deadbolts' back part (22), the deflection plate (1) moves downwards, while the deadbolts, pushed by the springs (21) and thanks to the sheaves (15), which are fastened in the middle of their length, move horizontally, going through the sliding-guiding openings (14) of the automatic mechanical latch box (2), which are parallel to each other and in horizontal order, and at the same time they go through the sliding-guiding openings (13) of the deflection plate (1), which are in horizontal order, and they are extracted from the mechanism box (2), entering the frame (25) notches (26) and the door locks.
[0027] When the latch has locked, the bottom side of the deflection plate (1) touches the lever (5) and at the same time it touches vertically to the vertical fins of the lever (7), fastened on the lock setscrew (17) (drawings 1, 2, 3, figure 2).
[0028] The sliding-guiding openings (14) of the box (2) compared to the sliding-guiding openings (13) of the deflection plate (1), are positioned, so that, when the deadbolts (22) are retracted in the box and the latch is desecured, the deadbolts' sheaves (15) go through the inner edge of the box (2) openings (14) and the inner lower edge of the plate (1) openings (13); while, when the deadbolts (22) are out of the box and the latch is secured, the deadbolts' sheaves (15) go through the outer edge of the box (2) openings (14) and the outer upper edge of the plate (1) openings (13).
[0029] As the deflection plate (1) moves downwards, the deadbolts (22) with the sheaves (15) fastened on them move horizontally, inside and outside the box. In specific, when the deflection plate (1) moves upwards, the deadbolts (22) are retracted in the box (2); while, when the plate moves downwards, the deadbolts (22) move out of the box (2). By this movement, the deadbolts (22) go within the notches (26) of the door frame and the tongue (3) goes within the notch (27) of the door frame (25) and it locks, as depicted in drawing 1 figure 2 and drawing 9.
[0030] For the automatic mechanical deflection latch to be disarmed opening the door, so that the user can leave the house, the door lock (6) handle (20) will be used. Thanks to the lever (5) located in the square spindle (23) of the lock (6) handle (20), by pressing the handle (20) to open the door, the lever (5) moves upwards as depicted in drawing 1 figure 3 and it pushes the lock plate (1) upwards. The deflection plate (1) in its turn pushes the deadbolts (22) via the sheaves (15) fastened on them (22) within the sliding- guiding openings (13) and (14) of the deflection plate (1) and of the lock box (2) of the automatic mechanical latch respectively; thus, the deadbolts are pushed towards the lock box (2). As a result, the door opens, since the handle turning with the simultaneous retraction of the deadbolts within the box, pulls the lock tongue as well. Upon the door opening, after the deadbolts have been retracted, the tongue (3) reverts, going out of the box (2), through the coiled spring (9) and it secures the deflection plate (1) again, since the trigger (11), which is fastened on the back part of the tongue (3), goes within the deflection plate (1) notch (10), preventing the downward return of the deflection plate (1). In conclusion, the lever length (5) is always such, that, either in cooperation with the regulator (29) or without it, it reaches to push the deflection plate (1) upwards, until the deadbolts (22) are unsecured and the deflection plate is fastened by the tongue (3) trigger (11).
[0031] The closing fastener (24) moves like a pendulum, allowing the tongue (3) to go out of the frame notch (27), without pressing, and the door opens.
[0032] As depicted in drawings 2 and 4, for the automatic mechanical deflection latch function, using the main lock key, the automatic mechanical bolt secures in the exact same way as described above referring to drawing 1. In other words, when the user goes out closing the door, the latch secures, while the lock remains unlocked. When the bolt has secured, the deflection plate (1) touches vertically to the lever fin (7) of the setscrew (17) and at the same time to the handle (20) lever (5).
[0033] On the user's return, in order to unlock the mechanical bolt opening the door, the upward movement of the deflection plate (1) for the mechanism's unsecuring is actuated by the lever (7), which is fastened on the lock (6) setscrew (17); while on the contrary, in drawing 1, where the mechanism's unlocking by the handle from the inner side of the door is depicted, it is actuated by the handle (20) lever (5) as described.
[0034] The lever (7) connects the lock (6) with the automatic mechanical deflection latch, transferring the movement of the lock (6) setscrew (17) to the automatic deflection latch when the user locks the door (6). Its shape or length is not important, as it adjusts to the setscrew (17) of any lock model (6), whatever shape and length it may have, and it always has the ability to transfer the lock movement (6) via the setscrew (17) to the deflection plate (1). However, in any case, the lever (7) has vertical fins to the deflection plate (1) in order to have accurate contact with the deflection plate and a stable upward push of the plate (1). The lever (7) has three more openings; a central rectangular one with regulation ability up and down, via which the lever is fastened on the setscrew (17), and two more openings, on the left and on the right of the central opening.
[0035] The automatic mechanical bolt disarming and the opening of the door, when the user is outside, is actuated in two ways. First with the lock (6) key, as described above in drawing 2, and secondly via the entryphone, pressing the entrance button (16). As depicted in drawing 3, for the operation of the automatic mechanical deflection latch by the electromagnet (12), which is fastened on the upper part of the box (2), the automatic mechanical latch locks in the exact same way as depicted in drawings 1 and 2, except that the upward movement of the deflection plate, disarming the mechanism, is actuated by the electromagnet's (12) traction piston (28), which is activated and retracted once the electromagnet is connected to the electric power. This stands as alternative operation mode, compared to the operation, when the plate's (1) push is actuated by the handle (20) lever (5) or by the setscrew (17) lever (7) (drawings 1 and 2 respectively).
[0036] In specific, and as depicted in drawing 3 figure 3, by pressing the entryphone button, the electric power activates the electronic lock, releasing its tongue, but at the same time the automatic mechanical deflection latch is disarmed as well, as the electromagnet's (12) traction piston (28) pulls the deflection plate (1) upwards. The same function can be achieved by the electromagnet with the traction piston, when it is positioned next to the deflection plate (1) and its piston pushes upwards. The deflection plate (1) in its turn extracts the deadbolts (22), and via the sheaves (15), which are fastened on the deadbolts (22), through the sliding-guiding openings (13) and (14) of the deflection plate (1) and the automatic mechanical bolt's box (2) respectively. As described above, as it is the case in the mechanism disarming by the handle (drawing 1) and by the door key (drawing 2), in case of opening the door by the electromagnet (12), after the deadbolts (22) have been extracted, the tongue (3) reverts, going out of the box (2), via the coiled spring (9), and it secures the deflection plate (1), since the trigger (11), which is fastened on the tongue's (3) back part is retracted to the deflection plate (1) notch (10) preventing its downward movement.
[0037] The automatic mechanical deflection latch may function not only on its own, but also in a row with more than one automatic mechanical bolts (drawing 7) (figure 1), provided that the deflection plates (1) of two or more mechanisms are connected to each other by the connecting setscrew (18). Only the first automatic mechanical latch is connected to the lock in a row, i.e. the one closer to the lock, so that the handle and lock levers (5 and 7) may function (drawing 7, figure 1). In this way, via the connecting setscrew (18), every movement, either upward or downward, of the deflection plate (1) of the first mechanical latch connected to the lock (6), is transferred to the second mechanical latch (1), and then to a possible third mechanical latch, via a further setscrew, which will connect the deflection plate of the second apparatus with the deflection plate of the third etc.
[0038] As depicted in drawing 8, figure 1, the lock (6) setscrew (17) is a lock component, it goes out from the lock, when it locks transferring the lock movement to the simple latches (19), up and down, connecting with them via the connecting setscrew (18), up and down.
[0039] The automatic mechanical deflection latch can be connected to locks with simple mechanical latches, up and down, functioning with them simultaneously, without affecting their mode of function. This is achieved as follows:
The lever (7), in its middle rectangular opening, is fastened upon the lock (6) setscrew (17), while the connecting setscrew (18) of the simple bolt on the upper side, is disconnected from the lock setscrew (17) opening, and it is connected with the lever side opening (7). In this way, the lever (7), which, connected with the setscrew (17), faithfully follows the lock movements (6), transfers in contact the lock movements to the automatic bolt and to the upper part of the simple bolt (19) at the same time.
[0040] The lower simple latch (19) continues functioning as before. This connection is depicted in drawing 8 figure 2. In this way, the automatic mechanical deflection latch is included in the simple mechanical latch function, operating with them simultaneously without affecting their function, offering to the user the choice to simply close the door and thus the door secures by deadbolts (22) of the automatic deflection latch, or to lock the door by key and thus the door secures with the deadbolts of the simple mechanical latches. Finally, the user has the choice to close the door -and therefore the deadbolts engage - and then to lock half of the door lockings (6). At that point, the deadbolts of the automatic deflection latch are halfway extracted and they move towards the box, while at the same time of the locking, the deadbolts of the main lock and of the simple latches, are extracted and they move towards the door frame. In other words, through the halfway locking of the door, all the deadbolts of all the latches are in order.
[0041] As Drawing 8 figures 3 & 4 depict, the current simple mechanical latches (19) can be transformed into automatic ones, if they are disconnected from the lock (6) and they are connected to the automatic mechanical deflection latch via the connecting setscrew (18) (drawing 8, figure 3). In this case, the simple latches function simultaneously with the automatic deflection latch, following its movements faithfully. Their deadbolts engage simultaneously with the deadbolts (22) of the automatic mechanical deflection latch (drawing 8, figure 3), and they disengage simultaneously with the deadbolts (22) of the automatic deflection latch (drawing 8, figure 4). The connecting setscrew (18) connects the deflection plates (1) of the simple bolts (19) with the deflection plate (1) of the automatic mechanical deflection latch. Moving up, the deflection plate (1) of the automatic mechanical bolt carries the pistons-deadbolts (22), which are retracted from the door frame and they engage into the automatic mechanical deflection latch box, since the deflection plate (1) clasps on its way up and it gets fastened by the tongue (3) trigger (11), which reverts via the spring (9), so that the main lock (6) is unlocked. At the same time, via the connecting setscrew (18), the upward movement of the deflection plate (1) is transferred to the deflection plates of the simple latches (19), whose bars are also carried out and they get retracted in their box, and thus the door locks.
[0042] In the same way, when the automatic deflection latch secures, the downward movement of the deflection plate (1) is transferred to the simple latches' lock plates (19) via the connecting setscrew (18); their deadbolts are also carried out and they are extracted from their box and thus the door locks.
[0043] The automatic mechanical deflection latch gets out of order, by simply removing the closing fastener (24) positioned in the door frame (25) (figure 9). Without the closing fastener (24) the tongue (3) is not pressed anywhere and thus it does not activate the deadbolt pattern (22) and the door securing.
- in a box (2),
- with one deadbolt (22) at least, positioned in horizontal position, with sheave (15),
- with deflection plate (1) in vertical position to the deadbolt (22), which has sliding - guiding openings (13) of the deflection plate (1) in diagonal order, of an equal number to the deadbolts (22),
- which has deadbolt (22) sliding - guiding openings (14) on the box surface (2), parallel to each other and in horizontal order, of an equal number to the deadbolts (22),
- where each deadbolt (22) is placed in horizontal position and in a place where the sheave (15) goes through the sliding-guiding openings (13) of the deflection plate (1) and simultaneously through the sliding - guiding openings (14) of the box (2),
- where the door lock (6) has a handle (20) with spindle (23) and lock setscrew (17)
- where the door frame (25) has openings (26) for the entrance of the deadbolts (22), of equal number to the deadbolts (22)
characterized by the fact that- it has a tongue (3) in a position parallel to the deadbolt (22), with push spring (9) and a trigger (11) on the back part of the tongue (3)
- it has a spring (21) on the back of each deadbolt (22),
- on the perimeter of the deflection plate (1) it has a notch (10) in which the trigger (11) of the tongue (3) is attached, and whose notch's size is similar to that of the trigger (11), the notch (10) is located at such position on the perimeter, that it is on the same height as the trigger (11), when the tongue (3) is outside the box (2) and the bolt is unarmed,
- it has a lever (5) attached to the spindle (23) of the handle (20) of the lock (6) and it moves with every rotary movement of the handle pushing the deflection plate (1) upwards,
- it has a lever (7) attached to the lock setscrew (17) of the lock (6) and fins vertical to the deflection plate (1) and at least one rectangular fastening opening on the lock setscrew (17), where the lever may move up and down,
- it has a notch (27) on the door frame (25) to enter the tongue (3) and a closing fastener (24), which moves like a pendulum allowing the tongue (3) to get out of the frame notch (27) without being pressed
and by the fact thatwhen the latch is in secured position, the bottom side of the deflection plate (1) touches the lever (5) and simultaneously it comes vertically to the vertical fins of the lever (7), which is fastened on the lock setscrew (17).