Corner bearing for a turn-tilt fitting

Abstract

A corner hinge (8) for a tilt-and-turn fitting (3) for a window sash (2) that pivots against a frame (1) has a locking element (14) to prevent movement between a bearing eye (13) and a bearing axis (12). The locking element (14) creates a force-fit connection between the adjacent components and is located on the side of the bearing axis (12) facing away from a bearing bolt (11). The corner hinge (8) is particularly compact and has a simple design.

Description

[0001] The invention relates to a corner bearing for a tilt-turn fitting for a sash of a window, a French window or the like that can be pivoted against a frame, with a bearing block for supporting a bearing bolt and with a bearing eye of the bearing block that encloses a bearing axis, so that the bearing bolt is mounted on the bearing block in a tiltable manner.

[0002] Such a corner bearing is known, for example, from EP 2 698 492 A1. This corner bearing has a threaded pin as an anti-rotation device, which has a non-circular cross-section in the area of ​​its external thread. The outer cross-sectional contour has an oversize of the thread crests compared to the dimensions of the thread troughs of an internal thread. The resulting anti-rotation device enables particularly safe and convenient operation of the sash and can prevent movement of the sash, for example, due to wind. A disadvantage of the known anti-rotation device, however, is that it is very complex to manufacture due to the non-circular cross-section of the external thread. Furthermore, movement of the internal thread relative to the external thread leads to an axial displacement of the components. Such axial displacement is undesirable.

[0003] EP 0 728 892 A1 discloses a corner bearing in which the rotational movement of the sash is damped, rather than the tilting movement. The corner bearing has a brake ring that surrounds the bearing pin. However, this design cannot be applied to the bearing block for the tilt bearing, because the bearing block is significantly smaller than the bearing pin and also supports the weight of the sash.

[0004] The invention is based on the problem of developing a corner bearing of the type mentioned at the outset in such a way that it is particularly compact and inhibits a tilting movement of the sash about a horizontal axis.

[0005] This problem is solved according to the invention in that a locking element is inserted between the bearing axis and the bearing eye and in that the locking element is designed to produce a force-locking locking of the movement between the bearing eye and the bearing axis.

[0006] This design allows the locking element to be installed as a separate component between the bearing eye and the bearing axis. This avoids the complex manufacturing of the bearing block components. Furthermore, the locking element can be replaced after wear. By appropriately selecting the dimensions of the locking element in relation to the diameter of the bearing axis, the supporting forces of the sash can be reliably transferred from the bearing eye to the bearing axis. By appropriately selecting the frictional connection, the sash can be held in a defined position between the end positions, so that it can only be moved further by manual force.

[0007] The locking element could surround the bearing axis in a ring. However, such a configuration would require a large amount of installation space. Furthermore, the weight of the sash would have to be supported by the locking element. This would require a very complex design of the corner bearing. According to another advantageous development of the invention, the locking element is particularly compact if it is arranged parallel to the axis of the bearing axis.

[0008] According to another advantageous development of the invention, loading of the locking element by the forces supporting the sash can be easily avoided if the locking element is arranged on the side of the bearing eye facing away from the bearing pin. This design supports the weight of the sash via the bearing block, which includes the bearing eye and the bearing pin, without placing any strain on the locking element. The locking element is thus only loaded during the relative movement of the bearing axis relative to the bearing eye.

[0009] According to another advantageous development of the invention, the corner bearing is particularly simple in design if the locking element is elastically preloaded against at least one of the components of the bearing eye or the bearing axis. Preferably, the locking element itself is made of a resilient material.

[0010] According to another advantageous embodiment of the invention, the assembly of the locking element is particularly simple if at least one of the components of the bearing axle or the bearing eye has a recess for accommodating the locking element. According to another advantageous embodiment of the invention, load peaks can be easily avoided if the recess has a rounded profile in the base area.

[0011] According to another advantageous development of the invention, a missing locking element can be easily visually detected if the locking element is U-shaped and has a base positioned between the bearing axis and the bearing eyelet, with two legs extending outward beyond the bearing eyelet. The legs extending outward beyond the bearing eyelet allow for easy determination of the intended mounting of the locking element.

[0012] According to another advantageous development of the invention, the locking element can be easily locked to the bearing eye during assembly if the legs are spaced apart according to the width of the bearing eye, if the ends of the legs have projections facing each other, and if the legs are designed to be resilient. This allows the bearing axle to be mounted after the locking element has been locked to the bearing eye.

[0013] According to another advantageous development of the invention, the base has bevels at its ends facing away from the legs to further simplify the assembly of the corner bearing.

[0014] According to another advantageous development of the invention, wear of edges can be easily avoided if the locking element has a rounded profile on its sides facing the bearing eye and the bearing axis.

[0015] According to another advantageous embodiment of the invention, the corner bearing can be manufactured particularly cost-effectively if the locking element is made of a plastic. The plastic is preferably a rubber-elastic material with a high coefficient of friction.

[0016] The invention permits numerous embodiments. To further clarify its basic principle, one of them is shown in the drawing and is described below. This shows in Fig.1a window with a corner bearing, Fig.2the corner bearing from Figure 1 in a perspective view, Fig.3 a view from below of the corner bearing from Figure 1 , Fig.4 an enlarged sectional view through the corner bearing along the line IV-IV from Figure 3 ,

[0017] Fig.5 an enlarged view of a locking element of the corner bearing from Figure 1 .

[0018] Figure 1shows a window with a sash 2 that can be pivoted against a frame 1 and with a tilt-and-turn fitting 3 shown in dash-dotted lines. The tilt-and-turn fitting 3 can be driven by a handle 4 and enables the sash 2 to be rotated about a vertical axis 5 and tilted about a horizontal axis 6 or the sash 2 to be locked in the frame 1. The sash 2 is connected to the frame 1 via a scissor bearing 7 and a corner bearing 8.

[0019] Figure 2 shows enlarged the corner bearing 8 from Figure 1 in a perspective view. The corner bearing 8 has a bearing plate 9 intended for attachment to the frame 1 for holding a bearing block 10. On the bearing block 10 is a Figure 1arranged bearing pin 11 is tiltably mounted. The bearing pin 11 is shown in the tilted position of the sash 2. To simplify the drawing, a bearing band attached to the sash 2, which encloses the bearing pin 11, is not shown. The bearing block 10 has a bearing axis 12 screwed to the bearing plate 9. This bearing axis 12 is located in the Figure 1 shown horizontal axis 6 of the wing 2. The bearing pin 11 is hinged to the bearing block 10 via a bearing eye 13 surrounding the bearing axis 12.

[0020] Figure 3 shows the corner bearing 8 from Figure 1 in a bottom view. Here, it can be seen that the corner bearing 8 has a locking element 14, of which the ends of two legs 15 are visible. The legs 15 are spaced apart by a distance corresponding to the width of the bearing eye 13 and have projections 16 facing one another and engaging behind an edge of the bearing eye 13.

[0021] Figure 4shows a sectional view through the bearing block 10 from Figure 3 along the line IV - IV. It can be seen that the inhibiting element 14 is a leg 15 made of Figure 3 interconnecting base 17. The base 17 is arranged parallel to the bearing axis 12 of the bearing block 10 and on the side of the bearing eye 13 facing away from the bearing pin 11. The bearing eye 13 has a recess 18 for receiving the base 17 of the locking element 14. The bottom of the recess 18 is rounded. The base 17 is rounded on its side facing the bearing eye 13. In the assembled position shown, the base is elastically pressed down by the bearing axis 12 and thus creates a frictional connection between the bearing axis 12 and the bearing eye 13.

[0022] Figure 5For clarity, the figure shows the locking element 14 in a perspective view prior to assembly. It can be seen that the base 17, when not depressed down, is also rounded on the side facing the bearing axis 12. The ends of the base 14 have bevels 19 at their ends facing away from the legs 15.

Claims

1. Corner bearing (8) for a tilt-turn fitting (3) for a sash (2) of a window, a French window or the like that can be pivoted against a frame (1), with a bearing block (10) for supporting a bearing pin (11) and with a bearing eye (13) of the bearing block (10) surrounding a bearing axis (12), so that the bearing pin (11) is mounted tiltably opposite the bearing block (10), characterized in that a locking element (14) is inserted between the bearing axis (12) and the bearing eye (13) and that the locking element (14) is designed to produce a non-positive locking of the movement between the bearing eye (13) and the bearing axis (12).

2. Corner bearing according to claim 1, characterized in that the locking element (14) is arranged parallel to the axis of the bearing axis (12).

3. Corner bearing according to claim 1 or 2, characterized in that the locking element (14) is arranged on the side of the bearing eye (13) facing away from the bearing pin (11).

4. Corner bearing according to at least one of the preceding claims, characterized in that the locking element (14) is elastically prestressed against at least one of the components of the bearing block (10) or the bearing axis (12).

5. Corner bearing according to at least one of the preceding claims, characterized in that at least one of the components of the bearing axis (12) or the bearing eye (13) has a recess (18) for receiving the locking element (14).

6. Corner bearing according to claim 5, characterized in that the recess (18) in the base area has a rounded profile.

7. Corner bearing according to at least one of the preceding claims, characterized in that the locking element (14) is U-shaped and is arranged with a base (17) between the bearing axis (12) and the bearing eye (13) and projects outwards beyond the bearing eye (13) with two legs (15).

8. Corner bearing according to claim 7, characterized in thatthe legs (15) are spaced apart from one another according to the width of the bearing eye (13), that the ends of the legs (15) have projections (16) facing one another and that the legs (15) are designed to be resilient.

9. Corner bearing according to claim 7 or 8, characterized in that the base (17) has bevels (19) at its ends facing away from the legs (15).

10. Corner bearing according to at least one of the preceding claims, characterized in that the locking element (14) has a rounded profile on its sides facing the bearing eye (13) and the bearing axis (12).

11. Corner bearing according to at least one of the preceding claims, characterized in that the inhibiting element (14) is made of a plastic.