RU2780786C2 - Frame with protection device for sliding sash or for sash with lifting and sliding mechanism of window or door - Google Patents

Abstract

FIELD: furniture.

SUBSTANCE: present invention concerns a sash with a protection device for a docking area of a sliding sash or a sash with a lifting and sliding mechanism, displaced along a running rail, of a window or a door. Frame 8 is described for the sash with the protective device on frame 8 of the sash, which may be sliding sash 7 or a sliding sash with a lifting and sliding mechanism of window or door 1, with receiving groove 17 located on upper horizontal beam 10 of the sliding sash and receiving groove 18 located on lower horizontal beam 11 of the sliding sash, as well as with a sash of stationary frame 8’ of stationary sash 6, displaced relatively to the frame of sliding sash 7 to a plane parallel to stationary outer frame 2, and closer to the outer side of a building, or with the same sliding sash or the sliding sash with the lifting and sliding mechanism, which is fixed to stationary outer frame 2, while protection element 20 is installed on open sliding sash 7 between end surface 19 of lateral vertical beam 13 of sliding sash 7 and lateral vertical beam 3’ of stationary outer frame 2, and the element is fixed using fastener 21 to sliding sash 7. At the same time, protection element 20 has protection plate 22 with an even surface, on plane side 23 of which there is connecting element 24 of fastener 21, directed to end surface 19 of lateral vertical beam 13 of the sliding sash, which is fixed to fastener part 25 of fastener 21, fixed on sliding sash 7, by kinetic or power closure and is hidden using protection plate 22 of protection element 20, lying almost flush and overlapping upper receiving groove 17 and lower receiving groove 18.

EFFECT: obtaining a window or door sash with a protection device.

11 cl, 8 dwg

Description

The invention relates to a device with a protective device for closing a window or door opening for a sash frame as a sliding sash or for a sash frame with a lift-and-slide mechanism.

Sliding or lift/slide sashes of a window or door are known in many embodiments. In their simplest form, they consist of a sliding sash attached to the outer fixed frame for opening and closing the window or door, and another element of the window or door attached to the fixed outer frame, for example, a fixed or fixed sash.

The closed sliding sash has, on its side facing the window or door element, a fitting, the actuation of which locks the sliding sash on the fixed frame, thereby protecting against unauthorized opening.

A horizontally sliding sash is usually fixed at its upper or lower edges in such a way that it retains its ability to slide. When opened, usually with a handle, the lift-slide sash lifts slightly together with the seals, making it easier to move. Then the open sliding sash moves forward from the fixed sash. Sashes with a lift-and-slide mechanism, depending on the version, can not only slide, but also recline. When closing, the sliding sash is lowered and the seals are pressed together again. Opening and closing can also be carried out using electric, hydraulic or pneumatic actuators.

The protection of the vertical joint, where the closed sliding sash comes into contact with the fixed sash or other window or door element, is usually carried out using a sealing profile. Sealing profile strips (tapes) are known as joint seals, which can be attached both to the vertical section of the sliding sash and to another element of the window or door in such a way that, when the sash is closed, the sealing profile strips overlap each other and go behind each other. Closing the gaps that occur between the sliding sash and the fixed sash in the vertical area of the junction of the strips of the sealing profile, in order to protect against the penetration of water during heavy rain and gusty wind, is carried out using a lip seal. Closing the slots in the area of the receiving groove, located in the joint area, both at the upper and lower ends of the vertical beam of the sliding sash, which arise due to the placement of fittings in the receiving groove, has received little attention in the modern level of technology. This applies to both installation and appearance.

To close the gaps, protective elements are used, which, due to the density of the material from which they are made, must be fastened to the beam of the sliding sash with an integral connection. To do this, among other things, it is necessary to drill holes into which screws are screwed, with the help of which the protective element is fixed on the vertical beam of the sliding sash. Fastening with screws is a visual disadvantage, since the screws, and especially their heads, are clearly visible on the sash beam. Although such protective elements serve their function, they do not meet the requirements of modern design. In addition, the protective elements are fixedly screwed, which makes their installation and dismantling time-consuming and expensive.

Such sashes with a lift-and-slide mechanism are known from the state of the art.

DE 202008001251 U1 describes a sash with a lift-and-slide mechanism according to claim 1. Thus, a lift-and-slide door has become known, which, by means of a carriage integrated in the lower part of the sash frame, moves along a running rail located in the lower part of the frame of the door frame. When the lift-slide sash is closed, in the joint area between it and the side part of the frame of the door frame, a protective element can be observed, which is fixed to the lift-slide sash and, when it is lowered, comes into contact with the running rail. The security element consists of a base and a fastening part, the base having a recess in its lower region which follows the contour of the running rail and absorbs part of it when the lift/slide sash is lowered.

Also known from EP 3275339 A1 is an end locking piece for mounting drawers, which has a "C" shape with an upper arm, a lower arm and a hinged section. This part also has a front fastening part with a removable part that is inserted into the space between both arms and held in it by means of movable wedges.

In addition, from DE 202008013043 U1, a window or door design is known with at least one sash with a lift-and-slide mechanism, which is shifted along the running rail of the profile of the fixed frame or threshold by means of at least one carriage located in the receiving groove of the sliding sash. At the same time, with a closed sash with a lift-slide mechanism, a protective element is provided on the edge of its frame located in the joint area, which, when the sash is closed and lowered, is directed towards the seal on the end side of the receiving groove and in the direction opposite to the running rail located on the frame or threshold. The protective element rests against the frame or sill on both sides of the running rail. Additionally, the joint is protected by a protective or guide plate.

The object of the present invention is to develop a reliable and compact device for protecting a sliding sash or a sash with a lift-slide mechanism of a window or door, which will not have the disadvantages noted above, will provide a good appearance of the window or door without high financial costs, and also simple, fast and reliable installation and maintenance, not requiring much space.

To solve this problem, the sash frame is equipped with a device for protecting the sash, which is designed as a sliding sash or a window or sliding door sash. The protective device, which consists of a protective element and a fastening device, is a thin plate attached to the end surface of the vertical beam of the sash frame. The protective element is installed with the sash open on it between the end vertical beam of the sliding sash frame and the side vertical beam of the fixed outer frame. Reliable fixation of the protective element is ensured by the fastening device mounted on the frame of the sliding sash. The protective element is adapted to the top cover of the end surface of the sliding sash frame beam or the entire window or door and has a cover plate. On the flat edge of the cover plate there is a connecting element of the fastening device, directed to the end surface of the vertical beam of the sliding sash frame and invisible from the outside. This connecting element of the fastening device is fixed on the fastener of the fastening device by force or kinetic closure and is closed by a cover plate. The cover plate also closes the fittings located in the receiving groove of the upper beam of the sliding sash frame and the carriage located in the groove of the lower beam of the sliding sash frame. Due to the material thickness of less than 2 mm, the cover plate is mounted almost flush to the end surface of the vertical beam of the sliding sash frame.

Preferably, the cover plate and the connecting element should be one piece. In this case, only the cover plate is visible to the eye, with its outer side completely lying on the vertical frame beam of the sliding sash, while the connecting element is completely hidden in the receiving groove of the sliding sash, closed by the cover plate and fastened to the fastener. Due to the fact that the protective element with the connecting element are one solid part, a stronger fixation is achieved. In addition, in this case, you can do without additional effort in installation. A protective device that looks like this corresponds to the needs of the modern market. The cover plate has the shape of a rectangular parallelepiped and the material thickness is less than 2 mm. The edges of the guard are made in such a way that their appearance matches the visible parts of the hardware, such as the handle, as well as the window or door as a whole. This gives the window or door a harmonious look without visible transitions, which is in line with modern trends.

A particular advantage for the production and installation of a window or door is that the protective element, by turning it around its axis, can close both the upper and the lower receiving groove. Also, the connecting element located on the protective element and the fastener attached to the sliding sash are formed in the manner necessary for this.

With the help of a sleeve, which acts as a part of the fastening device, as well as functionally and externally equal to the dowel, and a connecting element on the protective element, which performs the function of a connector, a plug-in connection of the fastening device is simply created. The fasteners are aligned with the connector by means of positive locking and are fixed by means of an elastic force by force locking, which can subsequently be opened again. Inserting the bushing into the pre-drilled hole in the vertical beam of the sliding sash frame is simple and quick to perform. To achieve a tight and one-piece arrangement of the sleeve in the hole, its outer surface, or at least part of the surface, is threaded or knurled.

Also, a magnetic or any other clamp connection is suitable for fixing.

The proposed solution compares favorably with already known similar options due to strong fixation, as well as the fact that it is simple and inexpensive to manufacture and install. Simple and inexpensive production and guaranteed functionality of fixing the fastening device is achieved due to the fact that the sleeve has latches with parallel axes, which are made by means of parallel cuts and constituting a single piece with the sleeve. Spring-loaded latches at their free ends have latching noses that protrude below the inner diameter of the bushing hole.

The protective element can be removed for replacement without much effort, but at the same time, when assembled, it ensures reliable fixation with the vertical beam of the sliding sash.

To prevent twisting of the mounted protective element on the vertical beam of the frame of the sliding sash, the protective device has two fastening devices located next to each other or detachable plug-in connections separated by a receiving groove.

When placed in the hole, the sleeve is automatically centered by means of a chamfer, which facilitates the fastening process. In order to achieve accurate fixation and positioning of the sleeve on the cover plate of the protective element, a collar is applied to the end of the sleeve facing the cover plate, which, when the protective element is mounted on the sliding sash, fits into the recess on the cover plate flush, forming a single plane with it.

The connector is preferably in the form of a bolt and has a chamfer at its free end, which facilitates fitting when inserted into the bore of the sleeve. Also, the chamfer helps to smooth out measurement inaccuracies in the production of sleeve and protective element parts, as well as flaws when drilling holes on the sliding sash.

To achieve the advantages described above, as well as simple and reliable installation, the connector must be bolt-shaped and round in cross section. A cross section with ribs or edges is also possible.

A special functional grip and easy fastening of the protective element is ensured by means of a groove located at the end of the connector along its entire circumference, in which the snap-in nose parts of the spring latches of the sleeve are fixed, which is equivalent to the final installation of the protective element. Since the trough is reversible, the connectors, and therefore the entire security element, easily click in and out of the clicked position. For the sake of simplicity, the force required to snap in and out is determined by the angle of the chute chamfers.

In order to realize the advantages described above and below, the security element must be made of plastic, cast or metal. The surface of the front side of the covering plate of the protective element, located on the end surface of the upper or lower edges of the vertical beam of the sliding sash, can be adjusted to the visible parts of the window or door, for example, under the handle, which is achieved by using the same materials, as well as by galvanizing, spraying, varnishing or brushing.

The dowel sleeve is preferably made of plastic, but metal variants are also acceptable.

Fig. 1 shows a schematic front view of a window or door with a closed lift-and-slide sliding sash and a fixed sash resting on a fixed outer frame, as well as the junction area between the sliding and fixed sashes from the inside of the room;

Fig. 2 shows a view of the joint area on a window or door without a fixed sash on a fixed outer frame, but with a threshold profile and a sliding sash with a corresponding security device, in perspective and from one of the outer sides of the building;

Fig. 3 shows an exploded view of the joint area, without the fixed sash on the fixed outer frame, but with the threshold profile, and with the sliding sash offset in the plane with the corresponding protective device, in perspective and from one of the outer sides of the building;

Fig. 4 shows an image of the joint area and the sliding sash of a window or door with technical parts fixed to it for moving the sliding sash, as well as a protective device according to FIG. 2, in perspective, from the outside of the building;

Fig. 5 shows a view in perspective and from the outside of the building of the joint area and the sliding sash of a window or door, as well as the security device according to FIG. 4, but no technical details;

Fig. 6 shows an enlarged exploded view of the security device with a security element and a fastening device consisting of a connecting element and a fastener according to FIG. 3;

Fig. 7 shows an enlarged exploded view of the security device with a security element and a fastening device, consisting of a connecting element and a fastener according to FIG. 6, where the fastener is a sleeve, as well as a sectional image of this sleeve;

Fig. 8 shows an enlarged exploded view of the security device with a security element and a fastening device consisting of a connecting element and a fastener according to FIG. 6, where the fastener is a sleeve that is in a snapped state with the connecting element of the protective element.

List of symbols:

1. Window or door;

2. Fixed outer frame;

3. Beam fixed outer frame;

3'. Fixed outer frame beam;

4. Beam fixed outer frame;

5. Fixed outer frame beam/threshold;

6. Fixed sash;

7. Sliding sash / sash with lifting and sliding mechanism;

8. Sash frame;

eight'. Fixed sash frame;

9. Glazing;

9'. Glazing;

10. The upper beam of the sliding sash frame;

ten'. The upper beam of the frame of the fixed sash;

11. The lower beam of the sliding sash frame;

eleven'. The lower beam of the frame of the fixed sash;

12. Side beam of the sliding sash frame;

12'. Side beam of the fixed sash frame;

13. Side beam of the sliding sash frame;

13'. Side beam of the fixed sash frame;

14. Carriage;

fourteen'. Fitting element;

15. Joint area;

16. Running rail;

17. Upper receiving groove;

18. Lower receiving groove;

19. End surface;

20. Protective element;

21. Mounting device;

22. Cover plate;

23. Side;

24. Connecting element;

25. Fastener;

26. connector;

27. Sleeve;

28. Thread;

29. Hole;

30. Notch;

31. Latches;

32. Inner diameter;

33. End;

34. Snap nose;

35. End;

36. Chamfer;

37. End;

38. Belt;

39. Deepening;

40. End;

41. Chamfer;

42. Gutter;

43. End surface;

44. Neckline.

All of the following applies to a window or door 1 with a lift-and-slide sash 7, which can also be a simple sliding sash. In FIG. 1 schematically shows the usual structure of a window or door 1 with a sash with a lift-and-slide mechanism 7. The window or door 1 has an external fixed frame 2 built into the window opening of the building and consisting of two side beams 3, 3', one upper beam 4 and one bottom beam 5, also called threshold. Further, the window or door 1 has a fixed sash 6 and a sliding sash with a lift-and-slide mechanism 7, which are fixed in a fixed outer frame 2. In the frame 8 of the sliding sash 7 and in the frame 8' of the fixed sash 6, which in this embodiment of the invention are made of wooden profile, glazing 9, 9' is installed. The frame 8 of the sliding sash 7 and the frame 8' of the fixed sash 6, as well as the fixed outer frame 2, each consist of four beams, namely two side vertical beams 12, 13 and 12', 13', one upper horizontal beam 10 and 10' and one lower horizontal beam 11 and 11'. When the sliding sash with lift-slide mechanism 7 of the window or door 1 is closed, the vertical beam 13 of the sliding sash with lift-slide mechanism 7 is located in front of the vertical beam 13' (not shown in Fig. 1) of the fixed sash 6, that is, in the joint area 15 of the fixed sash 6 with a sliding sash with a lift-slide mechanism 7. At the same time, another vertical beam 12 of the sliding sash with a lift-slide mechanism 7 is located parallel to the side beam 3 of the fixed outer frame 2, that is, in the joint area 15 between the sliding sash with the lift-slide mechanism mechanism 7 and side beam 3 of the fixed frame.

Other versions of the window or door 1 are also allowed, providing for the installation of two or more sashes with a lift-and-slide mechanism 7 on a fixed outer frame 2. In order to ensure the mobility of the sliding sash with a lift-and-slide mechanism 7 relative to the fixed outer frame 2 and the fixed sash 6 , a sliding sash with a lifting-sliding mechanism 7 and a fixed sash 6 are installed inside the fixed outer frame 2 in different planes parallel to each other. In the shown in FIG. In the embodiment 1, the lift-and-slide sliding sash 7 is located closer to the inside of the building than the fixed sash 6. Beams 10, 11, 12 and 13 of the frame 8 of the lift-and-slide sliding sash 7 are made of a wooden profile and are designed so that in their folds there are receiving grooves in which fittings and other technical details are installed. The lower beam 11 of the sliding sash with a lift-slide mechanism 7 is equipped at the ends with carriages 14 with guide rollers (shown schematically), with the help of which the sliding sash with a lift-slide mechanism 7 can be moved along the running rail located in the lower beam 5 of the fixed outer frame 2. At the same time, other fittings 14', which are functionally necessary for moving the sliding sash with a lift-and-slide mechanism 7, such as, for example, guide elements, are installed on the top beam 10 having a receiving groove 17. In addition, on the frame 8 of the sliding sash with a lift-and-slide mechanism sliding mechanism 7 is installed not shown in Fig. 1 lift-slide fittings for moving the sliding sash with lift-slide mechanism 7 in the vertical direction, i.e. for raising, lowering and also locking it.

In FIG. 2 is a perspective sectional view of the joint area 15 between the lift/slide sliding sash 7 and the vertical beam 13, not shown in FIG. 2, shifted behind the vertical beam 13 in a plane parallel to it, as well as the vertical beam 13' of the fixed sash 6 with the upper beam 4 and the lower threshold 5 of the fixed frame 2. Also in FIG. 2 shows one of the variants of the protective device with a protective element 20 for a window or door 1. According to the invention, the protective element 20 is mounted on the end surface 19 of the vertical beam 13 and completely covers the upper and lower receiving grooves 17, 18 with the help of a protective plate 22.

The visible part of the protective plate 22 has a flat surface and is precisely adjusted to the end surface of the beam 13. When the receiving grooves 17, 18 are covered by the protective plate 22, a protruding overlay is formed on the end surface 19, located in such a way that between the plane of the end surface 19 of the vertical beam 13 and the visible end surface 43 of the protective plate 22, which are located in parallel planes, planarity occurs. Protective elements 20, tightly fitting, are located on the corresponding edges of the vertical beam 13 flush.

The protective element 20 consists of a base, which is a protective plate 22, and a connecting element 24, which are fastened by means of a fastening device 21, as shown in FIG. 3.

In the presented embodiment of the invention, the connecting element 24 constitutes a single building piece with the protective plate 22. It is also possible not shown in the drawing version, providing that the protective plate 22 and the connecting element 24 are two separate parts.

When overlapping the sliding sash 7 located on the vertical beam 13 and receiving grooves 17, 18 open at the ends with a protective element 20, as shown in FIG. 2-5, their surface is adjusted in shape to the structure of the edge surface of the window or door 1. At the same time, the protective plate 22, having no fasteners visible to the eye, has an absolutely flat end surface 43, a material thickness of up to 2 mm and a rectangular parallelepiped shape. The rib surface of the covering element 20 is formed in accordance with visible details, for example, with a control lever (handle), window or door 1, giving the window or door 1 the overall appearance of a single building structure, which has a smooth shape without sharp transitions.

As can be seen from FIG. 4 and 5, the protective elements 20 covering the upper receiving groove 17 and the lower receiving groove 18 look the same in appearance. Also, these protective elements 20, mounted in the sliding sash 7, do not differ from each other functionally. Thus, each of them is adapted to cover both the upper receiving slot 17 and the lower receiving slot 18, for this it is necessary to simply turn the protective element 180 degrees around its axis.

The protective element 20 located at the bottom of the beam sash 11 has a cutout 44 on the protective plate 22 for the upper profile of the running rail 16. It is possible to manufacture the protective element 20 for the sliding sash with a cutout contour 44, with the possibility of how to make a cutout along this contour before mounting the sliding sash , and leave the protective element as shown in FIG. 1, without making a cutout according to the office made during production. In any case, many embodiments of the security element 20 are possible.

Thanks to the sleeve 27, which acts as a dowel and is part of the fastener 25 of the connecting element 24 of the protective element 20, which is made in the form of a connector 26, a detachable connection of the fastening device 21, shown in FIG. 6-8, which does not require complex tools. The bushing 27 is hammered into the pre-made hole 29. To achieve a strong fit of the bushing 27 inside the hole 29, a thread 28 or knurling is applied to its outer surface, or at least a part of it.

The proposed solution is characterized by simple and inexpensive production, which, moreover, is easy to use. It is also possible magnetic or other snap fastening, not shown in the drawings.

The latches 31 of the sleeve 27 located on parallel axes are made with the help of parallel cuts 30 made on it and form an integral one-piece structure with it. The spring latches 31 of the snap noses 34 protrude below the inner diameter 32 of the sleeve 27 and help the fastening device 21 to create a snap connection with the connector 26. The guard can be easily detached for replacement, but when assembled provides a secure fit to the vertical beam 13 of the sliding sash 7. To prevent twisting of the protective element 20 when mounted on the vertical beam 13, the protective structure provides two fastening devices 21 separated by a receiving groove 17 and 18, as seen from FIG. 3.

An additional version of the sleeve 27 is shown in FIG. 6 and 8. The sleeve 27 shown has a chamfer 36 at its free end. The chamfer 36 automatically centers the sleeve when placed in the hole 29 on the vertical beam 13, making it easier. To ensure a more precise fixation of the sleeve 27 with the protective plate 22 of the protective element 20, on the end 37 of the sleeve 27 directed towards the protective plate 22, a collar 38 is located, which fits into the recess 39 on the protective plate 22 flush, as shown in FIG. eight.

As can be seen from FIG. 6 and 7, the connector 26 is made in the form of a bolt and has a chamfer 41 at the free end 40. Using the chamfer, the connector can be automatically connected to the sleeve 27. Errors in changes that have arisen, for example, in the production of parts of the sleeve 27 and protective element 20 or by making a hole in the sliding sash 7 can be compensated for by the chamfer 41. Further from FIG. 6 and 7, it can be seen that closer to the free end 40 of the connector 26, a groove 42 is provided around the circumference, into which, according to FIG. 8, the springy latches 31 of the sleeve 27 engage with their snap noses 34, as shown in FIG. 7, which equates to the final assembly of the security element shown in FIG. 2, 4 and 5. The structure of the groove 42 extending around the circumference of the connector 26 ensures that the connector 26 is fixed in the sleeve 27, in whatever position relative to each other the connector 26 and the sleeve 27 are. Due to the two-sided structure of the trough 42, the connector 26 and the sleeve 27 can be easily snapped in and out. The strength of the fixation and the ease of separation can be adjusted by calculating the angle of the chamfers of the gutter 42.

In FIG. 3 arrows indicate the axes of the direction of installation of the protective element 20 with connectors 26 and bushings 27. Also, due to the above-described design of the chute 42 on the connector 26, axial displacement is allowed. After the bushing 27 is installed in the hole 29 of the sliding sash 7, the protective element 20 snaps into place in the bushing 27.

The present invention has been described in relation to a window or door 1 with a sliding sash 7 with a lift-and-slide mechanism, however, it will be understood by those skilled in the art that the invention can also be applied to a window or door 1 with a conventional sliding sash.

Claims (19)

1. A device for closing a window or door opening (1) with a protective device for the frame (8) of the sliding sash (7) or for the frame of the sash with a lift-and-slide mechanism, comprising: - fixed outer frame (2); - a sliding sash (7) or a sash with a lift-and-slide mechanism; - a fixed sash (6) or an additional sliding sash or an additional sash with a lift-and-slide mechanism; - in this case, the frame (8) of the sliding sash (7) or the sash with a lift-and-slide mechanism is installed in a fixed outer frame (2) and contains a receiving groove (17) on the upper horizontal beam (10) and a receiving groove (11) on the lower horizontal beam (11). groove (18); - while the frame (8') of the fixed sash (6), or the additional sliding sash, or the additional sash with a lift-slide mechanism is installed in the fixed outer frame (2) and is shifted relative to the frame (8) of the sliding sash (7) or the sash with lifting-sliding mechanism in a plane parallel to the fixed outer frame (2) and closest to the outer side of the building; - in this case, on the sliding sash (7) or the sash with a lift-slide mechanism between the end surface (19) of the side vertical beam (13) of the sliding sash or the sash with a lift-slide mechanism and the side vertical beam (3') of the fixed outer frame (2 ) a protective device is installed, which includes two protective elements (20), which are fixed on the sliding sash (7) or the sash with a lift-slide mechanism using a fastening device (21); - in this case, each protective element (20) has a protective plate (22) with a flat surface, while on the side (23) of the protective plate facing the receiving groove, there is a connecting element (24) of the fastening device (21), directed towards the end surface (19) side vertical beam (13) of the sliding sash or lift-slide sash, which is fastened to the fastener (25) of the fastening device (21) fixed on the sliding sash (7) or lift-slide sash (21) by a kinematic or force lock and hidden by the protective plate (22) of the protective element (20), - in this case, the protective plate (22) of one protective element (20) closes the upper receiving groove (17) of the upper horizontal beam (10) of the frame (8) of the sliding sash or sash with a lift-slide mechanism with the fitting element (14') located in it , and the protective plate (22) of another protective element (20) closes the lower receiving groove (18) of the lower horizontal beam (11) of the sliding sash (7) or the sash with lift-and-slide mechanism with the carriages (14) located in it. 2. The device according to claim 1, characterized in that the protective plate (22) and the connecting element (24) form a single piece. 3. The device according to claim 1, characterized in that the protective plate (22) has the shape of a rectangular parallelepiped and the material thickness is not more than 2 mm. 4. The device according to claim. 1, characterized in that the protective device, consisting of a protective element (20) and a fastening device (21), is made with the ability to close both the upper receiving groove (17) and the lower receiving groove (18) due to the fact that the protective element (20) can be turned around its axis. 5. The device according to claim. 1, characterized in that the fastener (21) is designed so that it makes it possible to create a plug connection, while the connecting element (24) of the protective element (20) is a connector (26), and fixed on a vertical sash frame beam (13) fastener (25) - sleeve (27). 6. The device according to claim 5, characterized in that the sleeve, at least partially, has a thread (28) or knurling on its outer side and is installed in a hole (29) made on the end surface (19) of the vertical beam of the sash frame (13 ). 7. The device according to claim 5, characterized in that the sleeve (27) is provided with parallel cuts (30), which form two spring clips (31), the free ends (33) of the snap noses (34) of which protrude below the level of the inner diameter (32) bushings (27). 8. The device according to claim 5, characterized in that the sleeve (27) has a chamfer (36) at one end (35), and a belt (38) at the other end (37), which enters the recess (39) on the protective plate flush. 9. The device according to claim 7, characterized in that the connector (26) is in the form of a bolt, and at its free end (40), on which the chamfer (41) is located, there is a groove (42) made around the circumference. 10. The device according to claim 9, characterized in that the connector (26) and the sleeve (27) can be displaced along the same axis relative to each other and when the protective element (20) is fixed on the side vertical beam (13) of the sliding sash, the spring latches (31 ) the bushings (27) fit into the groove (42) by snapping into place. 11. Device according to claim 1, characterized in that the protective element (20) is made of plastic, cast or metal, and the sleeve is preferably made of plastic.

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