Windowsill fastening device, windowsill and sliding window

Abstract

The invention relates to a windowsill fastening device (32) for fastening a windowsill (26) to a sliding window (10), comprising at least one profile element (25) having a fastening device (42) for releasable plug connection to a rail (18) of the sliding window (10). The invention further relates to a windowsill (26) having at least one such windowsill fastening device (32) and to a sliding window (10) having at least one such windowsill (26).

Description

[0001] Dr. Andreas Lang Munich, December 19, 2025

[0002] Nafpliou Rainbow Villa 2 Our reference: 0653 0001 P-WO CY-8228 Chlorakas

[0003] Window sill mounting device, window sill and sliding window

[0004] The present invention relates to a window sill fastening device for attaching a window sill to a sliding window. The invention further relates to a window sill with at least one such window sill fastening device and to a sliding window with at least one such window sill.

[0005] A windowsill of the type mentioned above, which can also be called a window sill, is a horizontal surface beneath a window and serves both practical and aesthetic functions. Practically, windowsills serve to drain water and provide a surface for items. Exterior windowsills, for example, channel water away to protect the masonry from moisture. Interior windowsills offer space for plants and decorations, as well as storage options of all kinds. Furthermore, windowsills serve as design elements, contributing to the interior design and the overall appearance of a building's facade. Thus, windowsills are essential architectural elements that offer both functionality and style.

[0006] Typically, during building construction, window frames are installed centrally in a window recess on either an interior or exterior wall. A windowsill is then installed in the open window recess to serve as a finishing touch. Increasingly, however, windows are being installed on the inside of the window recess, as space is needed on the outside for sun and insect protection. Furthermore, the exterior wall is often not strong enough to support window frames due to the application of insulation. This often eliminates the need for a windowsill on the inside of the window. Retrofitting a windowsill requires considerable structural effort, such as screwing brackets to the interior wall. In addition to conventional casement, tilt, top-hung, and pivot windows, there are also sliding windows, which consist of a frame and two or more sashes that slide within the frame.Unlike casement, tilt, top-hung, and pivot windows, the sash of a sliding window remains parallel to the wall plane while sliding. This means that when open, the window element does not protrude into the room, saving space. Furthermore, sliding windows offer a convenient opening mechanism and cannot be accidentally slammed shut by drafts and thus become damaged.

[0007] Sliding windows exist in two different sliding designs: vertical sliding windows, in which the window elements can be moved vertically, and horizontal sliding windows, in which the window elements can be moved horizontally. The present invention relates to horizontal sliding windows.

[0008] An example of a horizontal sliding window is shown in EP 3 623 563 B1, which comprises a frame, sliding windows mounted horizontally within the frame, and a sealing strip arranged in a fixed frame section, which is mounted to move in a direction perpendicular to the sliding direction of the window. A window sill mounted on a masonry wall is also provided as a finishing element.

[0009] The present invention is based on the objective of creating a window sill fastening device, a window sill and a sliding window that enable the subsequent and reversible attachment of a window sill to a sliding window.

[0010] To solve the problem, a window sill fastening device with the features of claim 1, a window sill with the features of claim 8 and a sliding window with the features of claim 14 are proposed.

[0011] Advantageous embodiments of the window sill fastening device and the window sill are the subject of the respective dependent claims. According to a first aspect of the invention, a window sill fastening device for attaching a window sill to a sliding window is proposed. The window sill fastening device comprises a profile element with a fastening device for a detachable plug-in connection with a rail of the sliding window.

[0012] The window sill mounting device is characterized by its fastening mechanism, which allows a window sill to be connected to a sliding window track via a detachable plug connection. This enables the effortless, subsequent, and reversible installation of a window sill on a sliding window. Furthermore, the mounting device prevents the window sill from tilting. In addition, the mounting device transfers the weight of the window sill and any objects placed on it as vertically as possible downwards into the frame.

[0013] For the purposes of the invention, a detachable plug connection is understood to mean the process of attaching, placing, inserting, inserting, and / or sliding the profile element into the rail and / or onto / into a section of the rail. Due to the detachability of the plug connection, it is reversible, meaning that the profile element, and thus the window sill, can be removed and reattached to the rail in a detachable manner.

[0014] The window sills discussed within the scope of the invention are advantageously used as interior furnishings for living, office and / or production spaces.

[0015] Advantageously, the profile element has a base section and at least one leg section projecting from the base section, which can be inserted into the rail. Advantageously, the leg section is part of the fastening device.

[0016] In an advantageous embodiment, the profile element is made of a metal or a plastic, in particular a fiber-reinforced plastic. The window sill fastening device, in particular the profile element, can be manufactured by means of an additive manufacturing process, for example a 3D printing process, by means of a subtractive manufacturing process, by primary forming and / or by forming, such as extrusion of plastics or metals, such as aluminum.

[0017] Within the scope of the invention, a sliding window is understood to be a window comprising at least one vertically movable window element, wherein the window element does not extend to the floor. Advantageously, the sliding window comprises a window frame, which may be formed from profiles made of plastic, metal, in particular aluminum, or wood, and two or more sash window elements that are slidably mounted in the frame, in particular horizontally. The profiles may be designed as rails or sliding rails for the horizontal movement of the window elements. Advantageously, the rails or sliding rails have a base, two legs projecting perpendicularly from the base, and at least two profile legs projecting perpendicularly from the base, which are arranged between the legs and engage in a recess of the window elements.The profile legs advantageously serve as guides for the window elements during horizontal movement.

[0018] Advantageously, the profile element is designed such that it can be attached, placed, inserted, and / or slid into the rail or sliding rail from above. Advantageously, the profile element is attached and / or placed onto a leg of the rail via the fastening device. Thus, the profile element is positively and / or non-positively connected to the rail, particularly to a leg of the rail, via the fastening device. Furthermore, advantageously, the profile element, and especially the fastening device, rests positively against the leg of the rail; that is, the profile element, and especially the fastening device, encloses the leg, with the fastening device bearing against at least three sides of the leg. This eliminates the need for a clip connection to attach the window sill to the rail.

[0019] In an advantageous embodiment, the fastening device has at least one groove that is incorporated into the profile element and into which a leg of the rail can be inserted. The profile element is thus fastened to a leg of the rail, particularly to a leg of the rail facing an interior surface, via the groove. The profile element is placed onto the leg via the groove. This creates a positive and / or non-positive connection between the window sill fastening device and the leg of the rail.

[0020] In an advantageous embodiment, the groove has a depth corresponding to the length of the leg. This allows the profile element to completely enclose or surround the leg of the rail.

[0021] In an advantageous embodiment, the fastening device has a first leg section projecting from a base section of the profile element, which can be inserted into the rail. The first leg section that can be inserted into the rail thus forms the detachable plug connection. Advantageously, the first leg section is supported on the base of the rail. Furthermore, advantageously, the first leg section rests against one of the legs of the rail, in particular against a leg of the rail facing an interior surface. Advantageously, the first leg section rests flush against a leg of the rail, in particular against a leg of the rail facing an interior surface. Furthermore, advantageously, the first leg section projects perpendicularly from the base section.

[0022] In an advantageous embodiment, the groove is provided between the first leg section and a second leg section projecting from the base section. Accordingly, the groove is formed by the base section, the first leg section, and the second leg section. Advantageously, in the fitted or installed state, the first leg section and the second leg section rest against the leg of the rail, particularly against a leg of the rail facing an interior surface. This prevents the profile element from tilting on the leg of the rail. Advantageously, the second leg section has a circular segment-shaped section facing the interior surface. Furthermore, it is advantageous that the second leg section projects perpendicularly from the base section.Advantageously, the first leg section abuts a first side of the leg, the second leg section abuts a second side of the leg, and the base section abuts a third side of the leg. Furthermore, it is advantageous for the first side to face away from an interior or exterior surface of the room. The second side is advantageously either facing the interior or away from the exterior surface of the room. The third side is advantageously the top of the leg.

[0023] In an advantageous embodiment, the profile element has a support device for resting on a base of the rail. Since the support device rests on the base of the rail, it can absorb any torque resulting from a weight force acting on the profile element and / or the window sill. Thus, the support device prevents the profile element, and consequently the window sill, from twisting.

[0024] In an advantageous embodiment, the fastening device comprises the first leg section and the support device. This embodiment allows the window sill fastening device to be inserted into the rail.

[0025] In an advantageous embodiment, the support device is designed as a third leg section projecting from a base section of the profile element, which can be inserted into the rail. Thus, the windowsill is supported on the rail via the third leg section. This third leg section therefore resists any torque acting on the windowsill. Advantageously, the third leg section projects perpendicularly from the base section. Furthermore, it is advantageous for the third leg section to face an exterior surface of the room. In the attached, fitted, inserted, and / or slid-on state, a profile section of the rail is arranged between the first leg section and the third leg section.

[0026] In an advantageous embodiment, the fastening device comprises a first leg section and a third leg section. According to a further aspect of the invention, a windowsill is proposed. The windowsill comprises at least one windowsill fastening device according to the invention.

[0027] The windowsill can be retrofitted and reversibly attached to the track of a sliding window. Furthermore, the windowsill prevents one of the window sashes from shifting. The windowsill can also be called a window sill.

[0028] In an advantageous embodiment, the profile element is integrally formed with the windowsill. Due to this integral design, the profile element and the windowsill fastening device are joined together in one piece and made of the same material. For example, the windowsill and the profile element are made of a metal or a plastic, particularly a fiber-reinforced plastic. Advantageously, the profile element extends over the entire length of the windowsill. This allows the fastening device of the profile element to be inserted, slid, or plugged into the track along its entire length, and / or attached to the track. Thus, a groove in the profile element, particularly in the fastening device, advantageously extends over the entire width of the windowsill.The window sill and profile element can be manufactured using an additive manufacturing process, such as 3D printing, a subtractive manufacturing process, primary forming, and / or forming, such as extrusion of plastics or metals, such as aluminum. Alternatively, the profile element can be screwed and / or glued to the window sill.

[0029] In an advantageous embodiment, a window sill fastening device is arranged on one end face of the window sill. This allows the profile elements to be designed as narrow profiles that are arranged on both sides of the window sill, particularly on the end faces, and then inserted, fitted, and / or placed and / or clipped into the rail together. Advantageously, the groove is only incorporated into the profile element. The profile elements can be screwed and / or glued to the window sill. Advantageously, the profile elements and the window sill are made of different materials. For example, the profile elements are made of a metal or a plastic, particularly a fiber-reinforced plastic, and the window sill is made of wood.

[0030] In an advantageous embodiment, when installed, inserted, slid in, attached, and / or mounted, the windowsill rests against a section of the rail, particularly against a profile leg of the rail. This allows the windowsill to be supported by the profile leg. Specifically, the windowsill rests against the top surface of the rail. Furthermore, it is advantageous for the windowsill to rest against the rail, particularly its top surface, along its entire length.

[0031] In an advantageous embodiment, the windowsill has a raised edge. This edge prevents objects placed on the windowsill from being pushed off.

[0032] In an advantageous embodiment, the windowsill has at least one recess. An object, such as a flowerpot, can be inserted into the recess.

[0033] In an advantageous embodiment, the windowsill has at least two parts that are pivotably connected to each other via a folding mechanism. This allows the windowsill to remain on the track when the sliding window is closed, and when the sliding window is open, it is possible to fold the windowsill out so that it extends across the entire track, thereby increasing, for example doubling, the shelf area.

[0034] According to another aspect of the invention, a sliding window with at least one window sill according to the invention is proposed.

[0035] The following section explains in more detail a sliding window, a window sill, a window sill fastening device, and other features and advantages using exemplary embodiments that are schematically illustrated in the figures.

[0036] Here, Fig. 1 shows a front view of a cross-section through a sliding window according to a first embodiment and a window mounting device according to a first embodiment, which is attached from above to a rail of the sliding window;

[0037] Fig. 2 shows a perspective underside view of a window sill according to a first embodiment with two window sill fastening devices from Fig. 1;

[0038] Fig. 3 is a perspective top view of the window sill and the two window sill fastening devices of Fig. 2;

[0039] Fig. 4 shows a front view of the cross section of Fig. 1, with the window sill mounting device attached to one leg of the rail;

[0040] Fig. 5 shows a perspective underside view of a window sill according to a second embodiment in which the window sill fastening device is an integral part;

[0041] Fig. 6 is a perspective top view of the window sill of Fig. 5;

[0042] Fig. 7 shows a front view of a cross-section through the sliding window according to the first embodiment and a window mounting device according to a third embodiment, which is attached to the rail of the sliding window;

[0043] Fig. 8 shows a front view of a cross-section through a sliding window according to a second embodiment and a window sash fastening device according to the first embodiment, which is attached to the track of the sliding window; and

[0044] Fig. 9 shows a front view of a cross-section through the sliding window according to the first embodiment and a window sash fastening device according to a fourth embodiment, which is attached to the track of the sliding window. Fig. 1 shows a cross-section through a sliding window 10, which has a frame 12 and window elements 14 that are mounted to be horizontally displaceable in the frame 12.

[0045] The frame 12 is formed from profiles 16 made of plastic or metal, in particular aluminum. For the horizontal movement of the window elements 14, the profiles 16 extending in the horizontal movement direction are designed as rails 18.

[0046] As can be seen in Fig. 1, the rail 18 has a base 20, two legs 22 projecting perpendicularly from the edge of the base 20, and two profile legs 24 projecting perpendicularly from the base 20 and arranged between the two legs 22. The profile legs 34 serve as guides for the window elements 14 during movement. For this purpose, the profile legs 24 engage in a recess 25 of the window element 14.

[0047] In order to use the rail 18 as a storage surface, a window sill 26 shown in Figures 1 to 4 is provided, which is placed on top of the rail 18, as can be seen by looking at Figures 1 and 4 together.

[0048] The window sill 26 has a board 28 serving as a shelf and two window sill fastening devices 32 attached to the end faces 30 of the board 28.

[0049] The Bret 28 is made of a metal, a plastic, in particular a fiber-reinforced plastic, or a natural material, such as wood.

[0050] The window sill fastening device 32 is made of a metal or a plastic, in particular a fiber-reinforced plastic. The window sill fastening device 32 is manufactured by means of an additive manufacturing process, for example a 3D printing process, by means of a subtractive manufacturing process, by primary forming and / or by forming, such as extrusion of plastics or metals, such as aluminum. The window sill fastening device 32 is connected to the board 28, in particular to the end faces 30 of the board 28. For this purpose, each of the window sill fastening devices 32 has openings 34 through which a fastening element (not shown) is inserted into the board 28. The fastening element can be a nail or a screw.

[0051] As can be seen in Figures 1 to 4, the window sill fastening device 32 has a profile element 35 comprising a base section 36, a first leg section 38 projecting from the base section 36, a second leg section 40 projecting from the base section 36 and a fastening device 42.

[0052] In the attached state, the first leg section 38 rests on the base section 36 and also lies on the inside of the leg 22 of the rail 18 facing an inside of the room, as can be seen in Fig. 4.

[0053] The second leg section 40, when attached, rests on the outside of the leg 22 facing the interior of the room. The second leg section 40 also has a circular segment-shaped section 44 facing the interior of the room.

[0054] The fastening device 42 serves for the detachable plug connection of the window sill 26 with the rail 18. For this purpose, the fastening device 42 has a groove 46 which is arranged between the first leg section 38 and the second leg section 40.

[0055] As can be seen from a comparison of Figures 1 and 4, the detachable plug connection is created by placing the window sash 26 onto the rail 18 from above in such a way as to be plugged or placed on top of it and / or inserted, pushed or placed into the rail in such a way as to be inserted, pushed or placed into the rail (this is shown by the arrow in Fig. 1) such that the leg 22 of the rail 18 is inserted into the groove 46.

[0056] As can be seen in Fig. 4, in the attached state the board 28 rests against the profile leg 24 and the first leg section 38 and the second leg section 40 enclose the leg 20 of the rail 18. This prevents the window board 26 from tipping and also transfers the weight of the window board 26 and objects placed on it as vertically downwards as possible into the frame 12.

[0057] Further embodiments of the window 14, the window sill 26 and the window sill fastening device 32 are described below using further exemplary embodiments, whereby the same reference numerals are used for identical or functionally equivalent parts.

[0058] Figures 5 and 6 show a second embodiment of the window sill 26, which differs from the first embodiment in that the window sill fastening device 32, in particular the profile element 35, is an integral part of the window sill 26. This means that the sill 28 and the window sill fastening device 32, in particular the profile element 35, are connected to each other in a single piece and made of the same material. The profile element 35 extends over the entire length of the window sill 26, as shown in Figure 5.

[0059] The window sill 26, including the profile element 35, is made of a metal or a plastic, in particular a fiber-reinforced plastic. The window sill 26 and the profile element 35 can be manufactured by means of an additive manufacturing process, for example a 3D printing process, by means of a subtractive manufacturing process, by primary forming and / or by forming, such as extrusion of plastics or metals, such as aluminum.

[0060] Fig. 7 shows a third embodiment of the window sill fastening device 32, which differs from the other two embodiments in that the window sill fastening device 32 has a support device 48 for supporting the window sill 26 on the rail 18.

[0061] The support device 48 has a third leg section 50 projecting from the base section 36, which rests on the base 20 of the rail 18. The support device 48 thus effectively prevents the window sill 26 from tilting and supports the transfer of the weight of the window sill 26 and any objects placed on it as vertically downwards as possible into the frame 12.

[0062] Fig. 8 shows a second embodiment of the sliding window 10, which differs from the first embodiment shown in Figures 1, 4 and 7 in that the sliding window 10 is designed as a three-leaf window, i.e., it has three window elements 14, and that the rail 18 is wider and has three profile legs 24.

[0063] Figure 9 shows a fourth embodiment of the window sill fastening device 32, which differs from the other embodiments in that the fastening device 42 is formed from the first leg section 38. The first leg section 38 and the third leg section 50 of the support device 48 support the window sill 26 on the base 20 of the rail 18 and transfer the weight of the window sill 26 and any objects placed on it as vertically downwards as possible into the frame 12. At the same time, the contact of the first leg section 38 with the leg 22 of the rail 18, together with the third leg section 50 which is supported on the base 20, prevents the window sill 26 from tipping.

[0064] The profile elements 35 shown in Figures 7 and 9 can either be mounted as narrow profile elements 35 on the end faces 30 of the board 28, as shown in Figures 2 and 3, or the profile elements 35 can be an integral part of the board 28 and extend over the entire length L of the board 28, as shown in Figures 5 and 6.

[0065] In an embodiment not shown, the board 28 may have a border and / or a recess for receiving an object, such as a flower pot.

[0066] In another embodiment not shown, the window sill 26 has two parts that are pivotably connected to each other via a folding mechanism. This allows the window sill 26 to remain on the track 18 when the sliding window 10 is closed, and when the sliding window 10 is open, it is possible to fold out the window sill 26 so that it extends over the entire track 18, thereby increasing, for example doubling, the shelf area.

[0067] The window sill 26 is characterized by the window sill mounting device 32, by means of which the window sill 26 can be connected to the track 18 of the sliding window 10 via a detachable plug connection. This allows for effortless, subsequent, and reversible attachment of the window sill 26 to a track 18 of a sliding window 10. Furthermore, the window sill mounting device 32 is designed in such a way that tilting of the window sill 26 is prevented and that the weight of the window sill 26 and the weight of objects placed on it are transferred as vertically downwards as possible into the frame 12. In addition, the window sill mounting device 32, when attached, prevents any of the window elements 14 from shifting.

[0068] Reference symbol list

[0069] 10 sliding windows

[0070] 12 frames

[0071] 14 window elements

[0072] 16 Profile

[0073] 18 Rail 0 Base 2 Leg 4 Profile Leg 5 Recess 6 Window Sill 8 Sill 0 Front Face 2 Window Sill Mounting Device 4 Opening

[0074] 35 Profile element

[0075] 36 Basic section

[0076] 38 first thigh section 0 second thigh section

[0077] 42 Fastening device

[0078] 44 circular segment-shaped section

[0079] 46 Nut

[0080] 48 Support device

[0081] 50 third thigh section

[0082] L Length of the window sill

Claims

Claims 1. Window sill fastening device (32) for fastening a window sill (26) to a sliding window (10), comprising at least one profile element (35) with a fastening device (42) for a detachable plug connection with a rail (18) of the sliding window (10).

2. Window sill fastening device (32) according to claim 1 , characterized in that the fastening device (42) has at least one groove (46) which is introduced into the profile element (35) and into which a leg (22) of the rail (18) can be inserted.

3. Window fastening device (32) according to claim 2, characterized in that the groove (46) has a depth corresponding to the length of the leg (22).

4. Window sill fastening device (32) according to one of the preceding claims, characterized in that the fastening device (42) has a first leg section (38) projecting from a base section (36) of the profile element (35), which can be inserted into the rail (18).

5. Window sill fastening device (32) according to claim 4, characterized in that the groove (46) is provided between the first leg section (38) and a second leg section (40) projecting from the base section (36).

6. Window sill fastening device (32) according to one of the preceding claims, characterized in that the profile element (35) has a support device (48) for supporting on a base of the rail (18).

7. Window sill fastening device (32) according to claim 6, characterized in that the support device (42) is a base supported by a base- The third leg section (50) projecting from the section (36) of the profile element (35) is formed, which can be inserted into the rail (18).

8. Window sill (26) comprising at least one window sill fastening device (32) according to one of claims 1 to 7.

9. Window sill (26) according to claim 8, characterized in that the profile element (35) is integrally formed with the window sill (26).

10. Window sill (26) according to claim 8, characterized in that a window sill fastening device (32) is arranged on an end face (30) of the window sill (26).

11. Window sill (26) according to one of claims 8 to 10, characterized in that the window sill (26) has a surround.

12. Window sill (26) according to one of claims 8 to 11, characterized in that the window sill (26) has at least one recess.

13. Window sill (26) according to one of claims 8 to 12, characterized in that the window sill (26) has at least two parts which are pivotably connected to each other via a folding mechanism.

14. Sliding window (10) with at least one window sash (26) according to one of claims 8 to 13.

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