SLIDING WINDOW DEVICE

Description

[0001] The invention relates to a sliding window device comprising a rectangular window frame for installation in a window opening according to the preamble of claim 1.

[0002] Very large, operable window formats can only be designed as sliding windows. To achieve a virtually seamless transition between living space and nature, there is often a desire for frameless glazing, i.e., glazing where the frames are not visible. For this purpose, frame profiles are fully integrated into the floor, ceiling, and walls, which then hold the window elements. Aluminum profiles are regularly used to support the considerable loads of the window elements. EP 3 095 946 A1 describes a sliding window device in which the frames are formed from a continuous plastic profile into which structural elements are integrated on the bottom side. These elements, via force-transfer supports, absorb the loads exerted by the window elements.In the bottom-side profile section, rollers are arranged in a straight line, on which the sliding window element rests and over which this window element can be moved.

[0003] This previously known sliding window device is characterized by a discreet, minimalist design, in which the window panes appear to float framelessly above the floor. However, upon closer inspection of the floor profile, the channel, not concealed by the sliding window element, is visible. This channel houses the rollers on which the window element slides. This channel, with the rollers arranged within it, detracts from the overall impression of the otherwise very discreet sliding window device. Another sliding window device is described in IT 2017 0008 1435 A1.

[0004] The invention aims to remedy this problem. The invention is based on the objective of providing a sliding window device of the aforementioned type in which no roller-equipped channel is visible even when the sliding window element is in the open position. According to the invention, this objective is achieved by a sliding window device with the features of the characterizing part of claim 1.

[0005] The invention provides a sliding window device in which no roller-equipped channel is visible, even when the sliding window element is in the open position. This is achieved by incorporating a guide in the bottom profile section on both longitudinal side walls of the guide channel, in which at least one flexible cover strip is guided for temporarily covering the guide channel. This cover strip is connected to the sliding window element at at least one end. When the sliding window element is opened, the flexible strip guided in the guide is pulled over the guide channel, so that it is concealed in every position of the sliding window element.

[0006] In a further development of the invention, the guide is formed by two opposing grooves into which the cover strip engages. This results in a smooth covering of the guide channel.

[0007] The guide channel has a substantially C-shaped cross-section with a gap through which a keel arranged on the sliding window element engages. The cover strip preferably has a T-shaped cross-section and is arranged in the guide such that its central web projects into the gap. This allows the gap of the guide channel to be closed flush. Preferably, the width of the central web of the cover strip corresponds substantially to the width of the gap.

[0008] In a further embodiment of the invention, the guide terminates at least on one side in a deflection arranged within the bottom-side profile section, around which the cover strip can be deflected. Preferably, the deflection comprises a deflection roller. This ensures that the cover strip is positioned without kinking when the sliding window element is in the closed position. Advantageously, the strip is made of plastic, preferably a thermoplastic elastomer.

[0009] In a further development of the invention, the cover strip is made transparent, with light sources arranged in the guide channel which can be controlled via a switch. This enables a strip of light along the guide channel between the sliding window element and the wall-side frame. Preferably, the light sources are LEDs.

[0010] In a further development of the invention, the guide is formed from two profiles with a substantially U-shaped cross-section, which are attached to the longitudinal side walls of the guide channel opposite each other, and in particular are integrally formed on these walls. Preferably, the guide is an integral component of a guide frame that is inserted into a receptacle in the bottom-side profile section. Advantageously, the guide frame is clipped into the receptacle. This allows for easy assembly of the guide. Furthermore, the guide frame largely closes the receptacle of the bottom-side profile section, leaving only the open gap of the guide channel, which can be closed by means of the cover strip.

[0011] In one embodiment of the invention, a cover strip is arranged, the end of which is connected to one side of the sliding window element and which runs along the side of the support roller assembly opposite the window element. This allows the strip to move under tension in both the closing and opening directions of the sliding window element, thus preventing rippling. Such a two-sided connection of the cover strip to the window element also allows for tensioning of the cover strip. Advantageously, the support roller assembly is designed in the form of a support roller rail.

[0012] Preferably, at least one cover strip is designed and guided in the guide such that it forms a plane with the boundary edges of the guide channel. This results in a particularly discreet design of the bottom profile in every position of the sliding window element.

[0013] Other embodiments and configurations of the invention are specified in the remaining dependent claims. An exemplary embodiment of the invention is illustrated in the drawings and is described in detail below. The drawings show: Figure 1 shows a schematic cross-sectional representation of a lower section of a sliding window device a) in the open position of the window element; b) in the closed position of the window element; Figure 2 shows a schematic representation of the sliding window device made of Figure 1in a further cross-sectional view with a deflection roller arranged; Figure 3 the schematic spatial representation of the bottom profile of the sliding window device made of Figure 2 Figure 4 shows the spatial representation of the soil profile. Figure 3 with an indicated sliding window element; Figure 5 shows the representation of the floor element made of Figure 4 with guide frame partially removed; Figure 6, the schematic representation of the sliding window device made of Figure 2 Figure 7 shows a schematic representation of the sliding window device in side view with the window element closed. Figure 1 in the partially open position of the sliding window element

[0014] The sliding window device chosen as an exemplary embodiment essentially consists of a window frame formed from a circumferential profile 1, which accommodates a fixed window element 3 and a sliding window element 4 and is mounted on a base frame at the bottom.

[0015] The surrounding profile 1 is designed as a plastic profile and comprises a bottom-side profile part 2, a ceiling-side profile part (not shown), and two side profile parts that define a rectangular window frame. Figure 1 Figure 1 shows the lower section of a sliding window device relevant to the present invention. Details of the upper section with top and side profiles are described, for example, in EP 3 059 946 A1. The cross-section of the bottom profile part 2 is shown in Figure 2. Figure 1The figure shows a first receptacle 21 for receiving the fixed window element 3 and a second receptacle 22 arranged next to the first receptacle 21 for receiving the sliding window element 4. The receptacles 21, 22 rest on an arrangement of parallel webs 23, which define channels 211, 221 extending orthogonally to the receptacles 21, 22. Parallel to the receptacles 21, 22 and orthogonally to the channels 221, 222, these interpenetrating, mutually parallel crossbars 24 are integrally formed.

[0016] In the first recess 21, which accommodates the fixed window element 2, a central channel 221 extending over approximately half the width of the first recess 21 is arranged, into which a static element 25 in the form of a rectangular bar is inserted. The load is transferred to the base frame via the static element 25.

[0017] In the second receptacle 22, which accommodates the sliding window element 4, three channels 221 are arranged. A static element 25, shaped like a rectangular bar, is inserted into each of the two outer channels 221 to transfer the load to the base frame. The middle channel 221 accommodates a number of support rollers 51 arranged in alignment along a straight line. The support rollers 51 are mounted in a support roller rail 5, which rests on the cross members 24 on both sides of the middle channel 221, thus transferring the load via the static elements 25. The support rollers 51 have a radially circumferential groove 52 with a U-shaped cross-section for engaging a keel 42, which is arranged centrally on the underside of the sliding window element 4 along its frame 41.In the exemplary embodiment, the keel 42 is designed as a separate component with a T-shaped cross-section, which is inserted into a corresponding insertion 411 arranged on the rim.

[0018] The two recesses 21, 22 are bounded on both sides by vertical support struts 27, which, when the bottom-side profile section 2 is installed, are flush with the exterior covering and the top floor of the interior living area in a building-side installation gap. The recess 21 of the bottom-side profile section 2, which receives the fixed window element 3, is closed with a cover plate 28 that is clipped onto the bottom-side profile section 21 and extends longitudinally to the fixed window element 3. For this purpose, the cover plate 28 has lateral locking arms 281 that engage in opposing grooves 212 of the first recess 21. In the transverse direction, the cover plate 28 is designed such that it projects into the area of ​​the second recess 22 and, when the sliding window element 4 is in the closed position, extends essentially to it, largely concealing the frame 41 of the sliding window element 4.On the outer vertical support strut 27 of the second receptacle 22 a cover strip 29 is arranged, which is flush with the cover plate 28 and which in turn extends substantially to the closed position of the sliding window element 4, whereby the frame 41 of the sliding window element 4 is largely concealed.

[0019] A guide frame 6 is inserted into the second recess 22 of the bottom-side profile section 2. The guide frame 6 comprises a base plate 61, which rests on the roller track 5 and is provided with recesses for the passage of the support rollers 51. On the base plate 61, as well as on shaped pieces 62 arranged on both sides of the base plate 61 and adapted to the bottom-side contour of the second recess 22, two vertical struts 63 are arranged on each side of the support rollers 51. These struts terminate in a guide wing 64, which is integrally formed with them. On their side facing the support rollers 51, the guide wings 64 have mutually directed C-profiles 65, which form a slot for a cover strip 7. This cover strip is connected at its end to the sliding window element 4 and is guided in the opposite C-profiles 65 of the guide frame 6. Preferably, the cover strip 7 is connected to the keel 42 arranged on the sliding window element 4.The guide wings 64 with the C-profiles 65 molded onto them and internal vertical struts 63 define a guide channel 26 into which the support rollers 51 of the support roller rail 5 project. The receptacle 22 is filled by the inserted guide frame 6 and visually reduced to its guide channel 26, which is closed by the cover strip 7.

[0020] Spaced apart from the guide wings 64, locking arms 66 are integrally formed on the outer struts 63 of the guide frame 6, which engage in opposing grooves 222 of the second receptacle 22. Spaced apart from the grooves 222, the vertical support struts 27 of the second receptacle 22 are provided with opposing insertion grooves 223 with a C-shaped cross-section, which receive sealing lips 271 that rest on the guide wings 64 of the guide frame 6 and are pre-tensioned against it, thereby sealing the guide frame 6 against the vertical support struts 27.

[0021] Upstream of the roller rail 5, a deflecting roller 8 with a U-shaped outer contour is rotatably mounted in the central channel 221 of the bottom-side profile section 2. The outer diameter of the deflecting roller 8 is larger than the outer diameter of the support rollers 51. A cover strip 7 is guided around the deflecting roller 8, and its length is selected such that, when the sliding window element 4 is open, the deflecting roller 8 is enclosed by the cover strip 7 by at least 150 degrees. In the exemplary embodiment, the cover strip 7 is made of thermoplastic elastomer (TPE) and has a substantially T-shaped cross-section. The cover strip 7 is arranged in the guide formed by the two opposing C-profiles 65 of the guide frame 6 such that its central web projects into the gap formed between the two C-profiles 65.

[0022] In Figure 4Figure 1 shows a detail section of a sliding window element 4 in a partially closed position on the bottom-side profile section 2. Here, the sliding window element 4 is provided with a handle profile 43 that projects beyond the first receptacle 21 for the fixed window element 3, such that in the open position, the handle profile 43 conceals the transverse side of the fixed window element 3 against which it rests. As shown in the Figure 3 and 4 As can be seen, the guide wings 64 of the guide frame 6 are arranged directly below the handle profile 43. The cover strip 7 is designed and guided in the C-profiles 65 of the guide frame 6 such that the gap formed between the C-profiles 65 for the passage of the keel 62 of the sliding window element 4 is visually closed. The guide shaft 26 with the rollers 51 arranged in it is completely concealed.

[0023] In an embodiment not shown, the cover strip is guided over two deflection rollers arranged on either side of the sliding window element 4 and connected to it at both ends on one side of the sliding window element 4. In this embodiment, a less rigid strip material can be used, as the cover strip can be tensioned as required, thus preventing waviness.

[0024] In another embodiment, not shown, the cover strip is transparent and LEDs are arranged in the second recess 55, in particular in the guide channel 26, by means of which the strip can be illuminated in a fixed or selectable color. In this case, the cover strip shines brightly as a special design feature.

Claims

1. Sliding window device comprising a rectangular window frame for installation in a window cut-out, in which window frame a first, fixed window element (3) and a second, displaceable window element (4) are arranged, wherein the window frame is formed by a circumferential profile (1), which comprises a floor-side profile part (2), a ceiling-side profile part and two lateral profile parts, wherein the floor-side profile part (2) has a guide shaft (26), in which a support roller arrangement is provided, on which the second window element (4) is mounted, wherein a guide is provided on the two longitudinal side walls of the guide shaft (26) in the floor-side profile part (2), in which at least one flexible cover strip (7) for temporarily covering the guide shaft (26) is guided, which is connected on at least one end to the displaceable window element (4), characterised in that the guide shaft (26) has a C-shaped cross-section, with a gap, through which a keel (42) arranged on the displaceable window element (4) engages.

2. Sliding window device according to claim 1, characterised in that the guide is formed by two grooves arranged opposite one another, in which the cover strip (7) engages.

3. Sliding window device according to claim 1 or 2, characterised in that the cover strip (7) has a T-shaped cross-section and is arranged in the guide in such a manner that its central web projects into the gap.

4. Sliding window device according to claim 3, characterised in that the width of the central web of the cover strip (7) substantially corresponds to the width of the gap.

5. Sliding window device according to one of the previous claims, characterised in that the guide opens on at least one side into a deflection arranged within the guide shaft (26), around which the strip can be deflected, wherein the at least one deflection preferably comprises a deflection roller (8).

6. Sliding window device according to claim 5, characterised in that the cover strip (7) is made of plastic, preferably of a thermoplastic elastomer (TPE).

7. Sliding window device according to one of the previous claims, characterised in that the cover strip (7) is transparent, wherein illuminants, preferably LEDs, are arranged in the guide shaft (26), which can be controlled via an arranged switch.

8. Sliding window device according to one of the previous claims, characterised in that the guide is formed from two profiles (65) with a substantially U-shaped cross-section, which are fastened opposite one another to the longitudinal walls of the guide shaft (26).

9. Sliding window device according to one of the previous claims, characterised in that the guide shaft (26) is formed at least in some areas by a guide frame (6), which is inserted in a receptacle (22) of the floor-side profile part (2), in particular clipped into it.

10. Sliding window device according to one of the previous claims, characterised in that a cover strip (7) is arranged, which is respectively connected at one end to one side of the displaceable window element (4) and runs on the side of the support roller arrangement opposite the window element (4), which is preferably designed in the form of a support roller rail (5).

11. Sliding window device according to one of claims 1 to 9, characterised in that a first cover strip (7) is connected at the end to one side of the displaceable window element (4) and a second strip is connected at the end to the other side of the window element (4), wherein both cover strips (7) are guided in the guide.

12. Sliding window device according to one of the previous claims, characterised in that the at least one cover strip (7) is designed and guided in the guide in such a manner that it forms a plane with the boundary edges of the guide shaft (26).