RU2774994C2 - Locking mechanism - Google Patents

Abstract

FIELD: locking mechanisms.

SUBSTANCE: present invention concerns a locking mechanism for a window or a door. A locking mechanism for a window or a door is proposed, which provides for locking element (2), which serves for the fixation to blocking element (3), when shifted along a groove, and, in a closed position, enters groove (5) of blocking element (3), extending along the groove and opened from sides. In this case, on the transverse edge of blocking element (3), opposite to groove (5), at a small distance from it, fixed stop (1) corresponding to locking element (2) is installed. According to the invention, the mechanism has a detachable retainer for a crossbar moving under the impact of an elastic force in the direction of blocking element, which is actuated in contact of blocking element (3) with stop (1).

EFFECT: providing the improvement of safety in unauthorized intrusion attempts, obtaining an improved development, which is simple in mounting, does not have an impact on normal actuation of a locking mechanism.

6 cl, 16 dwg

Description

The present invention relates to a locking mechanism for a window or door, comprising a locking element that engages with the locking element when moved along a slot. In the closed position, the locking element enters the fixing groove of the locking element located along the groove and open on the sides, while on the transverse edge of the locking element opposite to the fixing groove, a fixed stop is provided, located at a short distance from it.

A similar locking mechanism is already known from the Titan AF - Register 7 catalog, Titan AF Anschlaganleitung (installation manual) WK 2 PLUS of August 2010. These instructions are installation instructions for locking mechanisms and provide information about the installation and the parts of the locking mechanism required for it. These instructions are needed by window manufacturers and window fitting companies so that they can select the locking mechanism that meets the requirements of a particular case.

The known locking mechanism is a push rod mechanism and has, on the attachment sides of the first and second flaps to the fixed frame, a corner gear BS (Pos. 44b, 12b). The upper end of the corner gear is connected to the sash extension mechanism and has locking elements in the shape of a mushroom cap. Push rods move these locking elements along the sash groove. In the locking position, each of the locking elements enters the locking elements, which are mounted in the frame groove and are inseparable from it. The blocking elements have two closing grooves lying in the longitudinal direction opposite each other, one of which includes locking elements in the form of a mushroom cap. Parts of the locking mechanism are made in the longitudinal direction symmetrically to ensure its use both on the left and right wings, and on all frame crossbars. On the side where the sash is connected to the fixed frame, a blocking element is installed corresponding to the locking element. On the opposite side, on the front panel of the BS corner gear, an anti-removal safety device in the shape of the Latin letter U (positions 47, 15) is installed, which serves as a stop. This fuse is attached to the front panel by means of a bayonet connection. The pull-out safety device has two functions. The first is that the distance to the locking element can be chosen so small that even with a slight movement of the sash relative to the frame, it fits the blocking element. This prevents a typical burglary attempt to remove the locking element from the blocking element. The blocking element is located between the stop and the locking element. The second function of the stop is that the available slot space, that is, the distance between the frame groove and the sash groove, narrows, which, in principle, in itself makes it difficult to move the sash relative to the frame, but forces directed vertically to the plane of the sash and frame, such an emphasis cannot absorb maybe.

European patent EP 2143859 A2 describes a locking mechanism that has two push rods connected by a gear. The second push rod is attached to the gear by means of a connecting rod in such a way that such an oscillatory movement of the second rod occurs that the latch fixed on it, as well as the latch of the blocking device located opposite it, lying between them, enter the locking device from its two sides. This creates a lock that uses two latches and one locking device. An attempt to move the sash relative to the frame with the intention of removing the latches from the blocking device results in the second latch going even deeper into the slot of the closure.

The disadvantage of this design is the relative complexity of the design.

The German patent DE 19856451 C2 provides, in a design similar in effect to the above described, one locking and one rotary latches, which, being guided by push rods, enter from two sides into the blocking element.

This system is also relatively complex and must be driven each time the push rods are actuated.

From the German patent DE 10111903 B4, a locking mechanism has become known, providing for actuated in opposite directions, locking latches, which are engaged in locking plates directed in opposite directions. This requires mechanisms for reversing the direction of thrust, as well as an increase in the number of parts that make up the blocking element, which increases the complexity of installation and the number of required building parts in general.

Based on the state of the art described above, the object of the present invention is to provide an improved design that is easy to install, does not affect the normal operation of the locking mechanism, and at the same time improves security against tampering attempts.

To solve the problem, an emphasis is provided located on the transverse edge opposite to the locking element. This emphasis has a crossbar and a clamp. When the bolt, under the influence of the elastic force, moves in the direction of the blocking element and the stop comes into contact with the blocking element, the latch is activated. When the latch is actuated, the spring-loaded bolt is locked on the blocking device, which leads to the fact that the free space between the stop and the blocking element, if necessary, can be reduced and the bolt will be able to enter the second, otherwise unused, groove. Due to this, interaction becomes possible even with a strong movement of the sash relative to the frame, and the crossbar becomes able to take on forces that act vertically on the plane of the sash and frame, which unloads the locking element.

The structurally and technically simple design provides that the latch consists of a movable cover panel superimposed on the main panel, which, when moving relative to the main panel, disengages the trigger spring of the bolt, which leads to the fact that the bolt latch rises, which requires only a small amount of building blocks. details.

Further, the design provides that the main panel has a starting spring in the shape of the Latin letter S, which with one of the arms of the letter S enters the recess on the main panel, and the other arm of the letter S is fixed on the edge of the recess on the cover panel in a compressed state. Thus, the latch and the spring form a single building unit.

In order to direct the forces in the direction of the locking mechanism, it is provided that the main panel, for connection to the front panel, has two bushings with heads in the form of a mushroom cap, which fit into the holes of the holes in the front panel. For the same purpose, it is provided that the fixing screw with the neck, passing through the base panel, enters the front panel. Thanks to this, it becomes possible to easily install the stop, which is done with a single screw.

In order to be able to direct the acting forces to the crossbar, the main panel is provided with a U-shaped guide groove, into which the crossbar enters and is fixed with the head of the screw installed in the main panel.

Further advantages of the design become clear from the drawings:

Fig. 1 - spatial image of the stop, side view, with the installed blocking element and the locking mechanism with push rods (latches), the locking mechanism is in the lock position;

Fig. 2 is an image according to FIG. 1 with a stop pushed over the locking element;

Fig. 3 is an image according to FIG. 1 with stop bolt, which is in the locked position;

Fig. 4 is a perspective view of the abutment without the cover panel;

Fig. 5 - stop in longitudinal section;

Fig. 6 - exploded view of the stop;

Fig. 7 - in Fig. 7a and 7b are sections along lines VIIa-VIIa and VIIb-VIIb, side view according to FIG. 7;

Fig. 8 - the second example of the execution of the stop in disassembled form;

Fig. 9 - section along the line IX-IX, side view;

Fig. 10 - the third example of the invention in disassembled form;

Fig. 11 - in Fig. 11a and 11b are sections along lines XIa-XIa and XIb-XIb, side view of FIG. eleven;

Fig. 12 - image of the stop built into the window;

Fig. 13 - another example of the implementation of the invention with the element that puts it into action;

Fig. 14 - shown in FIG. 13 is an example of the execution of the invention, in the state built into the window, in the section of the sash adjacent to the frame;

Fig. 15 is an exploded view of the stop, in the situations of FIG. 13 and 14;

Fig. 16 - stop in the section.

List of symbols:

1. Emphasis;

2. Locking element;

3. blocking element;

4. Front panel;

5. Groove;

6. Groove;

7. Cover panel;

8. Main panel;

9. Rigel;

10. Spring;

11. Starting spring;

12. S-shaped shoulder;

13. Rivet;

14. Shoulder;

15. Notch;

16. Partition;

17. Groove;

18. Notch;

19. Partition;

20. Notch;

21. Sleeve;

22. Keyhole holes;

23. Fixing screw;

24. The neck of the fixing bolt;

25. Guide groove;

26. Nozzle;

27. Rectangular teeth;

28. Rectangular teeth;

29. Ledge;

30. Fixing hook;

31. Recess for fixing hook;

32. Partition;

33. Slit;

34. Protrusion (tubercle);

35. Protrusion (tubercle);

36. Prong;

37. Launch bar;

38. Slot for crossbar;

39. Notch (deepening);

40. Long shoulder;

41. Sash;

42. Frame;

45. Control element;

46. Lever;

47. Angle;

48. Slit;

49. Rivet;

50. Hole;

51. Gap;

52. Front surface of the frame;

53. Partition;

54. Back wall;

55. Pin.

In FIG. 1 shows an abutment 1 of the inventive locking mechanism for a window or door, which is already in the assembled state in known manner pushed against the locking element 2 of the locking mechanism. The locking element 2, preferably, should be a sleeve with a head in the form of a mushroom cap and, for fixing with the locking element 3, enter into an elongated hole on the front panel 4. The front panel 4 closes the groove of the sash and rods not described here pass through it, on which the locking element 2 is attached to. This means that the locking element can move along the groove and, being in the closed position, enter the groove 5 located along the groove and open from the sides of the blocking element 3. The blocking element 3 has a second groove 6, which is located opposite groove 5. On the side of the groove 6 at a distance of several millimeters from the blocking element 3, a stop 1 is provided.

When attempting to break in, the sash moves against gravity in the direction of the upper horizontal beam of the frame (direction F) in order to release the locking element from the groove 5. In this case, the stop 1 is pushed onto the blocking element 3, as shown in Fig. 2. In this case, the cover panel 7 is shifted relative to the main panel 8 firmly fixed on the front panel 4.

As can be seen from FIG. 4-7, on the main panel 8 there is a guide groove in the shape of the Latin letter U, through which the bolt 9 is brought to the main panel 8 with the help of the starting spring 10. The bolt 9 is held in the closed position by the starting spring 11, as shown in Fig. 4. To do this, the starting spring 11, bent in the shape of the Latin letter S from a wire made of spring steel, with the shoulder of the letter S 12, enters the recess on the main panel 8 and is attached to it with a rivet 13. The shoulder 14, located at the opposite end of the starting spring 11 is located in the recess 15 on the main panel 8. The jumper 16 connecting the arms 12, 14 is provided with a groove 17, which enters the recess 18 on the crossbar 9. The height of the starting spring 11 must be greater than the height of the crossbar 9, so that the starting spring 11 protrudes above him.

The starting spring 11 is held in a compressed position in the direction of the bolt 9 by means of a jumper 16. The groove 17 has the shape of a hemisphere, and the recess 18 has rounded edges. On the side opposite to the bolt 9, the starting spring 11 has sufficient space for movement, so that the groove 17 can move out of the recess with an appropriate offset. In the examples given, it is assumed that the length of the spring 10 is chosen so that the groove 17 is under high pressure. The location and shape of the groove 17 are chosen so that even a small displacement can actuate the starting spring 11 and disable the bolt 9.

The arm 14 rests on a web 19 which defines recesses 20 in the cover panel 7, as can be clearly seen in FIG. 7a and 7b. Due to the small distance between the shoulder 14 and the groove 17, the groove 17 can already leave the recess 18 with a low and non-deformable tension of the starting spring 11. jumper 19 and enters the adjacent recess 20. This leads to the displacement of the starting spring 11 and the locking of the bolt 9. In this case, the location is chosen so that the bolt 9 enters the groove 6, which has not been used up to this point.

In the event of a continuation of the break-in attempt, the above means that the extrusion of the locking element 2 entails an even deeper immersion of the bolt 9, which protects the lock from breaking. In this case, the entry of both the locking element 2 and the bolt 9 has a positive effect on the load on the blocking element 3, since it is protected from twisting under the force acting vertically on the leaf plane. Forces acting unilaterally on a loaded blocking element can create a torque that can adversely affect the material that secures the blocking element 3. The symmetrical locking on the bolt 9 and the locking element 2 reduces the likelihood of torsional moments or completely prevents them.

Deviating from the embodiments of the invention described above, FIG. 8 and 9 provide a modified starting spring 11. As can be seen from FIGS. 8, the main panel remains identical to that described above. In this configuration, the main panel and the cover panel 7 are connected by rectangular teeth, and their position relative to each other can be changed. When bringing together suitable pairs of teeth, the protrusion 29 can be adjusted to the errors of production and installation. The trigger spring 11 has a locking hook 30 to which a recess for the locking hook 31 corresponds. of the locking hook 30 out of the recess of the locking hook 31 and to the locking of the bolt 9. The adjacent slot 33 begins to interact with the starting spring 11 when the cover panel is moved. In the recess for the locking hook 31 and in the slot 33 there are protrusions 34, 35, which are adjacent to the jumper 32. To the recess for the locking hook 31 adjoins a tooth 36 with a bevel inclined towards the locking direction, which allows pushing the bolt 9 to its original position. This can help if the bolt was activated by mistake during installation.

In FIG. 10 and 11 show a third embodiment of the invention. As in the first two examples, the cover panel 7, the main panel 8 and the bolt 9 are shown here. The bolt 9 is applied by the spring 10 and held in the locked position by the trigger spring. In this example, it is also provided that the starting spring forms a starting crossbar, which is installed in the slot for the bolt 38.

The starting spring 11 forms the Latin letter L, the short arm of which creates a starting crossbar, which is parallel to the slot for the crossbar 38 and its guide and protrudes forward relative to the cover panel 7 and the main panel 8.

The recess 39, open at the edges, in the long arm 40 serves to pass through the crossbar 9. The recess 39 must be so narrow that the bolt 9, when the starting spring 11 is released, can be restrained by narrow vertical edges. This is facilitated by the fact that the starting spring in the released state has a slightly curved shape.

In the exemplary embodiment of the invention described, it is provided that the blocking element 3 has a second groove 6 located opposite the first groove 5. Deviating from this configuration, it can be provided that the blocking element 3 is used exclusively for fixing the closing element 2, and in addition to it, a second blocking element is provided, which is installed in the same slot of the sash only to interact with the stop 1. This configuration does require the installation of a second blocking element 3, but leads to a decrease in the load on the screws and blocking elements.

From FIG. 1-3 it can be seen that the main panel 8 for connection to the front panel 4 of the locking mechanism has two bushings 21 with heads in the form of mushroom caps, which correspond to the holes of the holes 22 on the front panel 4, and one fixing screw 23 with a neck 24 (smooth part between head and start of thread), which passes through the main panel 8 and enters the front panel 4.

A further improvement in strength occurs due to the fact that the main panel 8 receives the bolt 9 in the guide groove 25, which has the shape of the Latin letter U, while the bolt 9 is fixed with the help of the nozzle 26 on the fixing screw 23, which is located in the main panel. In the example shown in FIG. 1-3, the crossbar assumes with the largest moment of resistance available to it, the forces directed vertically to the plane of the drawing, and the main panel helps to increase the rigidity of the front panel 4. The chosen method of fixing the stop 1 on the front panel 4 does not lead to its permanent weakening , which could result from large drilled holes.

Locking that has occurred by actuating the stop cannot be released by opening the locking mechanism of the push rods. With a massive burglary attempt, the sash is usually somehow damaged so much that its further use becomes impossible. In the event that the break-in attempt is stopped by the actuated bolt 9 without severe damage to the sash and, at the same time, only the stop 1 has been moved to the fixed frame, the sash can be rotated after unlocking the locking mechanism with push rods in such a way that the bolt 9 can be released from groove 6. This is only possible if the bolt has no undercuts.

Also, for the acquisition of greater safety in use by the design, it is possible to fix the crossbar 9 with the help of an additional lock. To do this, the bolt 9 must be provided with an appropriate geometric engagement means, which will release the bolt 9 only after it is broken. Such an additional latch can be spring loaded on the main panel 8 in the direction of the cover panel 7 and, when locking the crossbar 9, be brought into position between it and the fixing screw 23.

In FIG. 12 shows the situation in which the stop 1 is attached to the front panel of the sash 41, which is invisible in the drawing, and, together with the locking element 2, represented in the form of a sleeve shaped like a mushroom cap, is brought to the blocking element 3 in the form of a locking plate. In this case, the blocking element 3 is wrapped around from two sides, on the one hand - the locking element 2 and on the other - the stop 1. When the sash 41 is lifted, the stop 1 collides with the blocking element 3, while reproducing the above-described sequence of actions necessary to bring the stop 1 into action . At the same time, the stop 1 reduces the slot space and allows only a limited displacement of the sash 41 in the direction of the axis of the locking element 2. In fact, the stop 1, also after actuating the bolt 9, continues to resist movement in a direction parallel to the direction of movement of the locking element 2. In this case, such a design is possible covering panel 7, in which the touch of the stop 1 of the frame 42 is able to actuate the crossbar.

Naturally, in cases where an appropriate locking element is provided, fastenings are also possible independently of the cover panel, ie next to the locking mechanism. Thus, a window which does not have a push rod locking mechanism can be provided with a blocking element 3 and a stop 1 and thus locked. This can be done by mounting two stops 1 with crossbars 9 directed towards each other and a blocking element 3 located between them. The crossbars 9 will be actuated one after the other as the leaf 41 moves and prevent its parallel movement in a direction vertical to its plane.

It is quite clear that the actuation of the bolt is an indicator of a burglary attempt. Accordingly, the electrical sensor can transmit a signal to the burglary detection device. The sensor may look like a box or a reed switch, which, when the bolt is actuated, closes and opens the alarm circuit. The signal box can also be an optical sensor and monitor the movement of the crossbar 9.

Deviating from the above, the stop 1 can be attached to any other place on the sash and act in conjunction with other blocking elements. Actuation of the crossbar 9 means that the window or door sash was destroyed when opened, which is quite possible. It can also be provided that the bolt 9, depending on the type of sleeve, the upper part of which has the shape of a mushroom cap, enters the groove from below the locking element and can absorb the forces acting on the groove vertically.

Finally, another embodiment of the invention is possible, in which the bolt 9 is held by a part that breaks when the cover panel is moved, thereby releasing the bolt 9.

To bring the stop 1 to its original position, after it has been activated, a control element 45 is provided.

The control element 45 is a flat lever 46 with a right angle 47, which is inserted into the slot 48 of the cover 7. In this case, the control element 45, together with the angle 47, reaches the crossbar 9 and is fastened to it with a rivet 49 passing through the hole 50 drilled in corner 47.

According to the data of FIG. 14, the lever 46, passing through the gap 51 between the leaf 41 and the frame 42, reaches the front surface of the frame 52. Due to this, after the bolt 9 has been activated in the manner described above, it can be pulled to its original position beyond the outgoing outside the sash part of the lever 46.

In FIG. 16 it is noticeable that the cover surface 7 has a crossbar 53 which holds the bolt 9. The bolt 9 in its retracted position rests on the back wall 54. The cover panel 7 protruding above the bolt 9 and the main panel 8 moves towards the bolt 9, moving the crossbar 53 behind it. until it breaks off, releasing the bolt 9. The bolt 9 moves forward with the help of the spring 10, which rests on the pin 55.

Claims (6)

1. The locking mechanism for a window or door, which has a locking element (2), which serves to fasten to the blocking element (3) when sliding along the groove and in the closed position, enters the groove (5) that runs along the groove and is open from the sides blocking element (3), while on the opposite groove (5) of the transverse edge of the blocking element (3), at a small distance from it, a fixed stop (1) corresponding to the locking element (2) is installed, characterized in that it has a detachable latch for the moving under the influence of an elastic force in the direction of the blocking element of the crossbar (9), which is activated when the blocking element (3) contacts the stop (1). 2. The locking mechanism according to claim 1, characterized in that the locking element (3) has a second groove (6) located opposite the first groove (5). 3. The locking mechanism according to claim 1 or 2, characterized in that the latch consists of a movable cover panel (7) located on the main panel (8), which, when moving relative to the main panel (8), releases the trigger spring of the bolt (9), thanks to to which the bolt (9) disengages. 4. The locking mechanism according to claim 3, characterized in that on the main panel there is a starting spring in the form of the Latin letter S, which, with the first arm of the letter S (12), enters the recess of the main panel (8) and with the second arm (14), being in compressed position, is installed on the edge of the recess of the cover panel (7). 5. The locking mechanism according to claim 3 or 4, characterized in that the main panel (8) for fastening with the front panel (4) of the locking mechanism has two bushings in the form of mushroom caps (21), which are installed in the holes of the wells (22) on front surface, and the fact that the fixing screw (23) with the neck (24), passing through the main panel (8), is fixed in the front panel (4). 6. The locking mechanism according to paragraphs. 1-5, characterized in that the crossbar (9) is placed in the guide, having the shape of the Latin letter U (25) and located on the main panel (8), and fixed with a nozzle (26) located in the main panel (8) of the fixing screw (23 ).

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