RU2386768C2 - Trick lock for doors of living spaces, gates and similar objects - Google Patents

Abstract

FIELD: construction. ^ SUBSTANCE: invention relates to the field of hardware industry and lock with secrecy mechanism, in which safety plates or wing keys are used, at the same time it comprises stopping facilities for temporary retention of one or several wing keys in position that is distant from their position of rest, thus, actuation of lock from the first key is guaranteed, and facilities for deactivation of stopping facilities, thus, actuation of lock is guaranteed only when the second key is used, which differs from the first key. In preferable version, adaptation of lock for actuation only from the second key comes as a result of simple usage of the second key in the lock. ^ EFFECT: lock provides for more convenience in operation, this lock requires much less expenses and is easy to re-adjust. ^ 13 cl, 16 dwg

Description

Description

The present invention relates to secret locks for residential doors, gates, and the like, which comprise a housing, a deadbolt mounted to be movable in the housing and configured to be biased by turning the key in the lock between the first position and the second position, which respectively coincide with the unlocked state and the locked state, and many safety plates or “suvald” located in the housing and made with the possibility of displacement under the action of spring COROLLARY or by gravity by turning the key in the lock in the respective position displacement providing zasovnogo element (see. for example, Russian patent 2186184).

In many cases, there is a need to restore the state of protection provided by the door lock after the key with which you can violate this state has ended up in the hands of persons who are not the owners of the protected property. Often at the construction site for the construction of the building there is a situation in which on the doors of a room, building or a separate apartment, where construction or repair is taking place, locks are opened, unlocked with keys that are provided to the working construction sites. Immediately after the completion of construction work, when the owner takes ownership of the premises on whose territory the work is carried out, care must be taken to ensure that the locks installed on the doors no longer open with the "construction" keys used in the work process, but only open "Master" keys that are the property of the owner exclusively.

The most convenient solution to the aforementioned problem is to replace the locks. Another solution is to provide locks of the type that have a removable lock face to ensure that the lock adapts to the new key by replacing only the lock face and not the entire lock. An additional solution is to provide locks of a reconfigurable type, i.e. those that can be adapted to work with another key. However, all of the above solutions are relatively complex, require time and additional costs.

The purpose of the present invention is to develop a lock with a secret of the above type, made with the possibility of adapting to work with another key using extremely simple means that are light and convenient to use and do not require significant time and cost.

This goal is achieved by the fact that in the lock with a secret containing the case, the bolt element mounted with the possibility of movement in the case and made with the possibility of displacement by turning the key in the lock between the first position and the second position, which correspond to the unlocked state and the locked state of the lock, safety plates or suvald located in the housing and made with the possibility of displacement under the action of spring means or under the action of gravity by turning the key in the lock in Corresponding provisions for moving the bolt element, according to the invention, there are additional locking means for temporarily holding one or more safety plates in a position remote from their rest position to ensure that the lock is activated from the first key, and means for deactivating the locking means to ensure that the lock only works from the second a key different from the first key.

In a preferred embodiment, the shape and arrangement of the aforementioned deactivation means is such that these means are triggered automatically as a result of using the aforementioned second key in the lock. In other words, the lock is made with the possibility of triggering first from the first key, which in this case can be a construction key, which is given for use by a worker participating in the technical process of building or repairing the premises protected by the lock. After that, when the premises are transferred to the owner, the latter just needs to insert the second key into the lock, which is the master key and is owned solely by the owner himself, in order to adapt the lock to the operation only from the master key.

Be that as it may, the invention also extends to the case where the adaptation of the lock to the operation from the second key or the master key is not obtained automatically, by opening the lock with the second key, but with the intervention of the deactivation means provided for this purpose.

In the lock according to the invention, until adaptation to the master key occurs, one or more safety plates or levers are held in a position remote from their resting position under the action of the corresponding return springs, which are capable of deactivating and guaranteeing the use of the first key in the castle. It is possible to provide such an arrangement that the first key or construction key can work, for example, only when this key is fully turned around, due to the blocking of the levers, which are temporarily held in the aforementioned position, where they are removed from their resting position.

In the case of the preferred embodiment, when the master key is inserted into the lock, this key is capable of causing the aforementioned locking means to be released, resulting in the subsequent activation of the lock from the old, construction key. All safety plates or levers in advance are located with the possibility of correct operation from the master key, guaranteeing the movement of the bolt element.

The aforementioned locking means that temporarily hold one or more of the safety plates or the levers in the aforementioned position, remote from their resting position, preferably comprise a locking element with a latch that interacts with one or more safety plates, holding them in the aforementioned temporary position. The locking element may be arranged to move in the lock case between the active position and the inactive position, and the deactivation means preferably comprise cam actuating means which are triggered by turning the second key in the lock.

Alternatively, the aforementioned locking element latch is supported on an easily failing part that breaks when the safety plates are displaced by using a second key or a master key in the lock.

The invention is also applicable to locks of the type that comprise a lock face that can be removed and replaced, in which case the aforementioned locking means and the aforementioned deactivation means are associated with a removable lock face.

The lock may contain auxiliary means making the first key unusable, which immediately after using the second key prevents the control of the movement of the bolt element of the lock with the first key, starting from the position of unlocking the lock completely.

One or more of the safety plates may have an auxiliary opening for the safety lock located on the plate of the bolt element, wherein the location and shape of the opening prevent the safety lock from moving and the lock is activated by the first key, and auxiliary means are configured to engage the safety lock inside the opening after the first use of the second key.

The safety lock can be located on a movable element mounted on the plate of the bolt element and repelled by elastic means in the position of the end of the movement.

The movable element may be a lever mounted to swing on the plate of the bolt element.

The movable element can be mounted on the plate of the bolt element in such a position that it prevents the protective plates from being released until the bolt element reaches the fully locked position after the first use of the second key so that, in the locking state of the lock, the movable element is able to freely reach the position of the end of movement in which it finally remains, and its safety lock is preliminarily located with the possibility of engagement with the auxiliary slot th plate.

Additional characteristics and advantages of the present invention will become apparent from the following description, with reference to the accompanying drawings, in which the following is depicted:

figure 1 depicts a schematic view of a first embodiment of a lock, corresponding to the invention, with the cover removed;

figure 2 is an additional perspective view of the castle shown in figure 1, with the removed parts of the castle to demonstrate some parts of the castle;

figure 3 - on an enlarged scale the cross section of the part shown in figure 2;

figure 4 is a view that corresponds to the view shown in figure 2, and illustrates the lock when it is triggered from the construction key, achieved after one revolution of this key;

figure 5 is a schematic front view of the lock shown in figure 1, when it is opened with the master key, at the moment when the key is rotated, making a second revolution;

6 is a perspective view of a second embodiment of a castle in accordance with the invention;

6a, 6b are, on an enlarged scale, views of the part shown in FIG. 6 in two different operating states;

Fig.7 is a perspective view of a third embodiment of a castle in which a mask is used that can be removed;

Fig is a perspective view of a mask, while for the convenience of illustration, some details are removed;

Fig.9 is a front view of the mask shown in Fig.8, at the time of use of the master key;

figure 10 is a front view of the guise of the castle shown in figure 7, which can be removed at the end of the operation from the master key;

11-16 depict perspective views of an additional embodiment of the castle, corresponding to the present invention, in different operating conditions.

Figure 1 shows the lock 1 with a secret, which is made under the "double-bead" key and contains a housing 2 made of a metal plate, closed on one side by means of a cover, which is not shown in the drawing, to provide an illustration of the parts inside the lock. The general construction and operation of this double-wrench lock is known per se, so their detailed description will be omitted here. On the other hand, they are illustrated in numerous patents and numerous patent applications filed on behalf of the applicant of this application. It can be noted very briefly that the lock contains a bolt element 3 made of a metal plate mounted with the possibility of sliding inside the housing 2 and having an edge, to the front surface of which the crossbars 4 are welded, mounted with the possibility of sliding through the corresponding holes made in the side wall of the housing 2 The insertion of the corresponding key inside the lock 1 and the rotation of the key in it ensures control of the shift of the bolt element between the position corresponding to the unlocked state of the lock in which Spruce 4 is withdrawn inside the housing 2, and in a position corresponding to the locked state of the lock, in which the bolts 4 protrude outward from the housing 2 and are enclosed in corresponding holes made in a frame fixed in the door frame and located next to the door on which the lock 1 is mounted. In addition, the lock 1 may contain, in itself, a known deadbolt or spring latch 5, elastically pressed towards the position in which it is withdrawn from the housing 2, and designed for snap engagement with the seat in The main door frame in order to maintain the latter in a locked state even when the bolt element is released. Also, like well-known designs, the lock contains a mechanism by which, when the key is turned to divert the bolts 4 into the housing 2, this key itself is able to make excessive movement, which controls the recession of the deadbolt-latch or spring latch 5, guaranteeing the opening of the door from the outside in a typical case when the handle for controlling the latch 5 is not provided outside the door.

And again, as in the known constructions, inside the housing 2 there is a package of safety plates 6 or “suvald” made of a metal plate, which are mounted to slide inside the housing in a direction parallel to their plane and perpendicular to the direction of movement of the bolt element 3. As already indicated , the construction details associated with the installation method of both the bolt element 3 and the suvald in the housing 2 with the possibility of sliding, are not described here, since the mentioned details can ealizovat any known method. And again, as in the known constructions, the safety plates 6 have windows 6a substantially coinciding with each other and having jagged edges. And finally, the safety plates 6 have corresponding holes 6b for engaging with a key, the upper edges 6c of which are engaged with the serrated edges of the two beard elements of the key (an example of a key of this type can be seen in Fig. 8). When the key is inserted into the lock and rotated around its axis, the serrated edges of both barbs successively come into contact with the edges 6c of the levers 6 so that the latter are displaced (vertically upwards, as seen in FIG. 1) under the action of elastic means (not visible in FIG. .1) or simply by gravity. The jagged edges of the windows 6a of the safety plates 6 and the jagged edges of both barbs of the registered key are shaped so that the key shifts the levers 6 to such positions that guarantee movement of the bolt element 3. The plate forming part of the said element actually has a safety pin 7 that protrudes through the windows 6a are the suvald 6 and finds a free corridor between the tips of the teeth of the windows 6a when the levers are shifted by means of a key to a position guaranteeing the movement of the bolt element.

The construction and operation described so far are common for any lock with a double-key lock. It should be emphasized here that the invention is applicable to any lock of this type, which provides for the presence of many safety plates or levers of the illustrated type. In particular, the invention also extends, for example, to locks in which the displacement of the levers will be controlled not by a “double-sided” key, but by a cylinder lock mechanism. In addition, the invention is applicable to a lock of the so-called "pumping" type, in which the levers are mounted so that they can swing around the common axis of the joint, and in which the key has a front serrated edge and must be axially moved inside the lock before turning.

The idea underlying the present invention is that the lock at the time of its first installation has one or more levers 6, which are temporarily held in a position in which they are removed from the resting position, and in which they are taken away by the corresponding return springs. In the special case, which is illustrated, only the first level 6 has a tooth 8, which is engaged with the latch 9, forming part of the locking element 10 (Fig.2, 3), so that the level 6 is in a position that is removed from it resting position, and to which it is repelled by the corresponding return spring (invisible in the drawings).

As shown in figures 2 and 3, the locking element 10 is formed by a prismatic block mounted in the housing 2 with the possibility of sliding in the same direction as the direction of movement of the bolt element 3, between two extreme positions limited by the engagement of the elastic tooth 10a inside one or the other of two slots 11, 12 made in the lower end wall of the housing 2.

As already indicated, the lock is discharged from the factory in the state illustrated in FIG. 1, so that it comes with a first lever 6 held in a temporary position in which it is deactivated. In the said state, the lock can be opened with a key of the first type, which in a typical case is a construction key issued to the technical personnel involved in the construction work.

4 illustrates a lock in a state in which a building key can be used. Since the first suvald 6 is in its temporarily deactivated position, the safety pin 7 finds its way between the teeth of the suvald windows during the first revolution when the key is turned. At the end of said first revolution, the safety pin hits the tooth 13, thereby preventing further movement of the bolt element. However, in the said state, the crossbars 4 are extended, so that the lock can be triggered by the building key when unlocking and locking the door on which it is installed.

Immediately after completion of construction work, when the premises are transferred to the rightful owner, the latter uses his master key, inserting it into the lock and turning it. The master key will be configured to activate the bolt element by turning the key two turns, since this key has a profile suitable for shifting all the levers 6 to their position, guaranteeing the movement of the bolt element. In particular, when the master key finishes its first revolution, the safety pin 7 does not lock with the tooth 13, since this key controls the lifting (as seen in the drawings) of the first lever 6, without touching the tooth 13. At the same time, immediately after he completed two turns of his turn, the master key will cause a complete displacement of the plate 14 to control the upper vertical sliding rod with moving it to a distance sufficient to bring the cam 16a into contact with the inclined plane 16 of the locking element 10 (figure 2), all As a result, the locking element 10 is displaced to the left (as can be seen in FIG. 2), to the position illustrated in FIG. 3. Thus, it will no longer be possible to keep the levers 6 in the initial temporary position, and therefore any operation of the lock from the first key or construction key will become impossible.

As you can see, in the case of the lock corresponding to the invention, the lock is first activated by the construction key, and after the first operation of the lock by the master key, the lock itself can only be activated by the master key. The mentioned result in the case of the preferred embodiment is obtained by simply using the master key in the lock. However, the possibility of releasing levers that are held in a temporary position by any other mechanism that the user manually actuates for the said purpose is not excluded.

The aforementioned result can be obtained by holding only one of the levers 6 in the aforementioned temporary position. At the same time, if it turns out to be desirable to ensure that other locks of the same room, which are triggered by different master keys, can initially be triggered by a single building key, then you must first hold a certain number of levers 6 in the deactivated position.

The embodiment shown in FIGS. 6a and 6b differs from the above only in the manner in which the first lever 6 is held in its temporary position. In this case, the aforementioned retention is achieved by means of engaging a tooth 21 protruding from the stationary hinged part 22 (in the particular case, this is a body part made of plastic that performs the function of a casing in the slot 20 made in the lateral edge of the levers 6). for suvald return springs). As can be seen in fig.6b, the selected material and arrangement of parts are such that when the master key is inserted and used, it causes vertical movement (as can be seen in the above drawing), which leads to breakage of the tooth, after which the construction key is unsuitable.

And finally, the embodiment shown in Figs. 7-9 relates to the case of a lock 1 equipped with a mask 30 of a lock that can be removed and replaced. In this case, it is the mask of the lock that includes a plurality of levers 6 mounted with the possibility of sliding relative to the frame 31 of the mask 30. This mask also contains a plate embodying the bolt element 3, which, when the mask is in the installed state inside the castle body, in a manner known per se , articulated with a plate connected to the crossbars 4. In the illustrated example, the first of the levers 6 is held in its temporary position, since its tooth 33 is engaged on the protruding element 34 of the locking element 10. The latter has a protruding element 35 with a lock made with the possibility of selective engagement in one of the slots (of which in Fig. 10 you can see only one, near the protruding element 35), made in a plate forming part of the frame of the lock mask. The insertion of the master key causes the locking element 10 to be deactivated, since the bolt element 3 has a finger 36 which comes into contact with the wall 37 of the locking element 10. In all other respects, the construction and operation are completely similar to those described above.

As it becomes clear from the foregoing description, the lock according to the invention achieves the goal of guaranteeing that the lock from the building key is activated at the initial stage, with the subsequent exclusion of the use of this key and the guarantee of exceptionally simple operations with the master key without time and additional costs in the manufacture of the castle. In a preferred embodiment, the result is an extremely simple and user-friendly method of use, since the first use of the master key necessarily makes the construction key unusable.

11-16 illustrate an additional embodiment of the lock corresponding to the present invention, guaranteeing a significant increase in the number of locks that can be opened with the same construction key, and subsequently adapted to operate from different master keys, making them completely independent from each other (something similar is possible in the first embodiment described above, but it is limited by a small number of locks).

11 illustrates a lock in an initial delivery state in an embodiment for a construction site. Under these conditions, the lock, triggered by its special construction key, has the ability to make only two of the possible four working moves, as already described above.

In this embodiment, it can be seen that the lock is additionally equipped with a lever 101 mounted with the possibility of swinging by means of a pin 101a on the plate 3 of the bolt element and provided with a tooth 102, which under the action of the spring 103 is forced to remain in contact with the code lever 6 (for clarity and convenience of illustration other levers not shown).

After inserting the construction key, it is possible to carry out, as already indicated, only two working strokes, since this key, as already mentioned above, does not provide release of the leopard, which serves as a support for the bearing tooth 13. In this extreme situation, as can be seen in Fig. 12, the tooth 102 of the lever 101 is still held in contact with the levers 6, while the bolt element 3 is not able to make an additional working stroke due to the fact that the safety pin 7 is inhibited by the tooth 13 of the levers 6.

With the insertion of the restrictive master key, as already described with respect to the first embodiment, the lever 6 is released, so that the safety pin 7 is able to pass through the window of the lever 6 and send the bolt element 3 forward (Fig. 13).

At this moment, further advancement of the bolt element 3 (Fig. 14) makes it possible to freely rotate the lever 101, which serves as a support for the said element, under the action of the spring 103 in a clockwise direction (as can be seen in the drawings).

At the end of the fourth working stroke, i.e. after two full turns of the key (the lock is completely locked), the lever 101 is in its final and irreversible position (Fig. 15), in which it is held at the backwardly curved edge of the plate 3 of the bolt element by a spring 103.

In the said state, in the case of locking the lock, when the last working stroke has passed, the tooth 102 is in a position corresponding to the slot 108 made on the leveling board 6 at a suitable height, which guarantees the introduction of the tooth into the window 109 and its location in the final unlocking position.

If a construction key had been accidentally inserted into this lock, then, unlike the first embodiment described above, the bolt element 3 would not be able to move, since the tooth 102 would prevent the advancement of the said element, because it would not have found the slot 108 due to the different levers code or Suvald 6, which was released or which were released when the master key was inserted (up to six levers can be provided in accordance with the level of difficulty).

Naturally, within the scope of the claims of the present invention, it is possible, without prejudice to the inventive intention, to change the structural details and embodiments of the invention within wide limits compared to those described and illustrated by way of example only.

Claims (13)

1. A secret lock comprising a housing (2, 31), a bolt element (3) mounted for movement in the housing and configured to be biased by turning the key in the lock between the first position and the second position, which correspond to the unlocked state and the locked state lock, a plurality of safety plates or levers (6) located in the housing (2, 31) and made with the possibility of displacement under the action of spring means or under the action of gravity by turning the key in the lock in the appropriate provisions for moving the bolt element (3), characterized in that it further comprises locking means (10, 22) for temporarily holding one or more safety plates (6) in a position remote from their rest position to ensure that the lock is activated from the first key , and means for deactivating the locking means (10, 22) to ensure that the lock only works from a second key that is different from the first key. 2. The lock according to claim 1, characterized in that the deactivation means are arranged to be automatically activated as a result of using the second key in the lock. 3. The lock according to claim 1, characterized in that the locking means comprise a locking element (10) with a lock (9) that interacts with one or more safety plates (6), holding them in the aforementioned temporary position. 4. The lock according to claim 3, characterized in that the latch (9) is located on the locking element (10), made with the possibility of displacement in the housing (2) between the active position and inactive position. 5. The lock according to claim 4, characterized in that the locking element (10) and the housing (2) have surfaces (10a, 11, 12) of mutual snap engagement, providing a base of reference for the active position and inactive position of the locking element (10). 6. The lock according to claim 4, characterized in that the deactivation means comprise cam actuating means (16a, 16) capable of being triggered by turning the second key in the lock. 7. The lock according to claim 3, characterized in that the lock (9) of the locking element is located on the easily failing part breaking when the safety plates are displaced as a result of using the second key in the lock. 8. The lock according to any one of the preceding paragraphs, characterized in that it is a lock of the type that contains the guise of the lock, which can be removed and replaced and which serves as a support for the bolt element (3), the safety plates (6), the locking element (10) and deactivation tools. 9. The lock according to claim 1, characterized in that it contains auxiliary means making the first key unusable, which immediately after using the second key prevents the control of the movement of the bolt element (3) of the lock with the first key, starting from the position of unlocking the lock completely. 10. The lock according to claim 9, characterized in that one or more of the safety plates (6) have an auxiliary opening (108, 109) for the safety lock (102) located on the plate (3) of the bolt element, the location and shape of the opening ( 108, 109) ensure that the safety lock (102) is prevented from moving and the lock is released from the first key, and the auxiliary means are configured to engage the safety lock (102) inside the opening (108, 109) after the first use of the second key. 11. The lock according to claim 10, characterized in that the safety latch (102) is located on the movable element (101) mounted on the plate of the bolt element and repelled by elastic means (103) in the position of the end of the movement. 12. The lock according to claim 11, characterized in that the movable element (101) is a lever mounted with the possibility of swinging on the plate (3) of the bolt element. 13. The lock according to claim 11, characterized in that the movable element (101) is mounted on the plate (3) of the bolt element in such a position that it prevents the release of the protective plates (6) until the bolt element reaches the fully locked position after the first use of the second key so that in the locking state of the lock, the movable element (101) is able to freely reach the position of the end of movement in which it finally remains, and its safety lock (102) is preliminarily arranged to engage with mogatelnym opening (108, 109) securing plate.

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