Corner bearing for a tilt-and-turn fitting

Description

[0001] The invention relates to a corner bearing for a tilt-and-turn fitting for a sash of a window, French door or the like which can be pivoted against a frame, comprising a bearing block for supporting a bearing bolt and a bearing eye enclosing a bearing axis of the bearing block, so that the bearing bolt is tiltably mounted on the bearing block, wherein a locking element is inserted between the bearing axis and the bearing eye and the locking element is designed to generate a force-fit locking of the tilting movement between the bearing eye and the bearing axis.

[0002] From EP 2 581 536 A2, a corner bearing is known in which a horizontally arranged bolt is rotationally fixed to a threaded sleeve. A threaded eye of a corner bearing bolt is screwed onto the threaded sleeve. By rotating the spindle, a horizontal displacement of the corner bearing bolt, which forms the axis of rotation, can be achieved, for example, to compensate for assembly-related inaccuracies during the manufacture of the window or door.

[0003] From DE 77 23 747 U1, a corner bearing for tilt-and-turn windows is known in which a screw bolt of a frame-side fitting supports a bearing eye. The bearing eye has a threaded bore with which it sits on a threaded section of the screw bolt.

[0004] A corner hinge is known, for example, from EP 2 698 492 A1. This corner hinge uses a threaded pin as a rotation-locking device, which has a non-circular cross-section in the area of ​​its external thread. The outer cross-sectional contour has an excess of thread crest dimensions compared to the dimensions of thread valleys of an internal thread. The resulting rotation lock enables particularly safe and convenient operation of the sash and can prevent movement of the sash, for example, due to wind. However, a disadvantage of the known rotation-locking device 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.

[0005] From EP 0 728 892 A1, a corner bearing is known in which not the tilting movement of the sash, but a rotational movement is dampened. The corner bearing has a braking ring that surrounds the bearing pin. However, this design cannot be transferred to the bearing block for the tilting bearing because the bearing block has significantly smaller dimensions than the bearing pin and also supports the weight of the sash.

[0006] The invention is based on the problem of further developing a corner bearing of the type mentioned above in such a way that it is particularly compact and inhibits a tilting movement of the wing around a horizontal axis.

[0007] This problem is solved according to the invention by the fact that the locking element is U-shaped and is arranged with a base between the bearing axis and the bearing eye and projects outwards beyond the bearing eye with two legs.

[0008] This design integrates the locking element as a separate component between the bearing eye and the bearing shaft. This eliminates the need for 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 shaft, the support forces of the wing can be reliably transferred from the bearing eye to the bearing shaft. A suitable frictional connection allows the wing to be held in a defined position between its end positions, so that it can only be moved further by manual force. The absence of the locking element is easily identifiable visually because the locking element is U-shaped, with its base positioned between the bearing shaft and the bearing eye, and two legs extending outwards beyond the bearing eye.The legs extending outwards beyond the bearing eye allow for easy determination of the intended mounting of the locking element.

[0009] The locking element could surround the bearing axis in a ring-like fashion. However, such a surround requires a large installation space. Furthermore, the weight of the wing would have to be supported by the locking element. This would necessitate a very complex design of the corner bearing. According to another advantageous embodiment of the invention, the locking element is particularly compact when it is arranged parallel to the axis of the bearing shaft.

[0010] According to another advantageous embodiment of the invention, the loading of the locking element by the forces supporting the wing can be easily avoided if the locking element is arranged in the bearing eye on the side facing away from the bearing bolt. This design supports the weight of the wing via the bearing block, which includes the bearing eye and the bearing bolt, without loading the locking element. The locking element is thus only loaded during the relative movement of the bearing axis with respect to the bearing eye.

[0011] According to another advantageous embodiment of the invention, the corner bearing is designed to be particularly simple in construction 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 spring-elastic material.

[0012] 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 axis or the bearing eye has a recess for receiving the locking element.

[0013] According to another advantageous embodiment of the invention, peak loads can be easily avoided if the recess in the bottom area has a rounded profile.

[0014] According to another advantageous embodiment of the invention, the locking element can be easily snapped into the bearing eye during assembly if the legs are spaced apart from each other according to the width of the bearing eye, if the ends of the legs have facing projections, and if the legs are resiliently designed. This allows the bearing shaft to be mounted after the locking element has been snapped into the bearing eye.

[0015] According to another advantageous embodiment of the invention, further simplifying the assembly of the corner bearing is achieved if the base has chamfers at its ends facing away from the legs.

[0016] According to another advantageous embodiment of the invention, wear on edges can be easily avoided if the locking element has a rounded profile on each of its sides facing the bearing eye and the bearing axis.

[0017] 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. Preferably, the plastic is a rubber-elastic material with a high coefficient of friction.

[0018] The invention allows for numerous embodiments. To further illustrate its basic principle, one of these is shown in the drawing and described below. This shows in Fig. 1 a window with a corner hinge, Fig. 2 the corner hinge made of Figure 1 In a perspective view, Fig. 3 shows a view from below of the corner bearing. Figure 1 , Fig.4 an enlarged sectional view through the corner bearing along line IV-IV from Figure 3 , Fig.5 an enlarged view of a locking element of the corner bearing made of Figure 1 .

[0019] Figure 1Figure 1 shows a window with a sash 2 that pivots against a frame 1 and with a tilt-and-turn fitting 3, shown in dashed lines. The tilt-and-turn fitting 3 can be operated by a handle 4 and allows the sash 2 to be rotated about a vertical axis 5 and tilted about a horizontal axis 6 or locked in the frame 1. The sash 2 is connected to the frame 1 via a scissor hinge 7 and a corner hinge 8.

[0020] Figure 2 shows enlarged corner bearing 8 from Figure 1 in a perspective view. The corner bearing 8 has a bearing plate 9 designed for attachment to the frame 1 for holding a bearing block 10. On the bearing block 10 is a [missing information] in the vertical axis 5 made of Figure 1The arranged bearing bolt 11 is mounted in a tilting position. The bearing bolt 11 is shown in the tilted position of the wing 2. For the sake of simplicity, a bearing band attached to the wing 2, which surrounds the bearing bolt 11, is not shown. The bearing block 10 has a bearing axle 12 screwed to the bearing plate 9. This bearing axle 12 lies in the Figure 1 The horizontal axis 6 of the wing 2 is shown. The bearing bolt 11 is articulated to the bearing block 10 via a bearing eye 13 enclosing the bearing axis 12.

[0021] Figure 3 Figure 8 shows the corner bearing 8 from the figure in a bottom view. It can be seen that the corner bearing 8 has a locking element 14, the ends of which of two legs 15 are visible. The legs 15 have a distance from each other corresponding to the width of the bearing eye 13 and projecting projections 16 that face each other and engage behind an edge of the bearing eye 13.

[0022] Figure 4shows a cross-sectional view through the bearing block 10 from Figure 3 along line IV - IV. Here it can be seen that the inhibitor element 14 forms the legs 15 from Figure 3 The base 17 connects the two components. The base 17 is parallel to the bearing axis 12 of the bearing block 10 and is located 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 illustrated assembled position, the base is elastically pressed down by the bearing axis 12, thus creating a frictional connection between the bearing axis 12 and the bearing eye 13.

[0023] Figure 5Figure 14 shows the locking element 14 in a perspective view before assembly. It can be seen that the base 17, in its unpressed state, is also rounded on the side facing the bearing axis 12. The ends of the base 14 have chamfers 19 on the ends facing away from the legs 15.

Claims

1. Corner bearing (8) for a turn-tilt fitting (3) for a sash (2) of a window, French door or the like that can be pivoted against a frame (1), the corner bearing having a bearing block (10) for supporting a bearing bolt (11) and having a bearing eye (13) enclosing a bearing shaft (12) of the bearing block (10) so that the bearing bolt (11) can be tilted with respect to the bearing block (10), a locking element (14) being inserted between the bearing shaft (12) and the bearing eye (13) and the locking element (14) being designed to generate frictional locking of the tilting movement between the bearing eye (13) and the bearing shaft (12), characterized in that the locking element (14) is U-shaped and is arranged with a base (17) between the bearing shaft (12) and the bearing eye (13) and projects outward beyond the bearing eye (13) with two legs (15).

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

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

4. Corner bearing according to at least one of the preceding claims, characterized in that the locking element (14) is elastically pretensioned against at least one of the components of the bearing block (10) or of the bearing shaft (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 shaft (12) or of 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) has a rounded profile in the bottom region.

7. Corner bearing according to at least one of the preceding claims, characterized in that the legs (15) are spaced apart from one another according to the width of the bearing eye (13), in that the ends of the legs (15) have projections (16) that are directed toward one another, and in that the legs (15) are resilient.

8. Corner bearing according to at least one of the preceding claims, characterized in that the base (17) has chamfers (19) at its ends facing away from the legs (15).

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

10. Corner bearing according to at least one of the preceding claims, characterized in that the locking element (14) is made of a plastics material.