CN114846214A

CN114846214A - Angle bearing

Info

Publication number: CN114846214A
Application number: CN202080088524.4A
Authority: CN
Inventors: W·里格
Original assignee: Maco Technologie GmbH
Current assignee: Maco Technologie GmbH
Priority date: 2019-12-17
Filing date: 2020-11-12
Publication date: 2022-08-02
Also published as: EP4045745A1; PL4045745T3; DE102019134786A1; WO2021121804A1; EP4045745B1

Abstract

The invention relates to an angle bearing for a window, comprising: a base plate designed for fastening in a corner of a window frame formed by converging C-profile elements; and a coupling device connected to the bottom plate, the coupling device being connectable to a sash of a window so as to movably mount the sash to the window frame. The corner bracket of the corner bearing includes: a first clamping leg extending in a first longitudinal direction for fastening the bottom panel to a horizontal profile element of the window frame; and a second clamping leg angled relative to the first clamping leg, the second clamping leg extending in a second longitudinal direction for securing the bottom panel to a vertical profile element of the window frame. The first clamping leg is arranged on the rear side of the base plate facing away from the coupling device and is mounted rotatably about an axis of rotation between an insertion position, in which the first clamping leg can be inserted into a groove of a horizontal profile element, and a clamping position, in which it engages behind a web of the horizontal profile element. The first clamping leg can be pulled towards the base plate in the direction of the axis of rotation by means of an adjusting device in order to secure the base plate in a clamping manner to the window frame in the clamping position of the first clamping leg.

Description

Angle bearing

Technical Field

The invention relates to an angle bearing for a window, door or the like, having a base plate which is designed for fastening in a corner of a window frame of a window door or the like formed by converging C-profile elements, and having a coupling device which is connected to the base plate, which coupling device can be connected to a leaf of a window, door or the like for movably mounting the leaf on the window frame.

Background

Such angle bearings usually form part of the rotary fitting, the tilting fitting or the rotary tilting fitting. Depending on the design, an angle bearing may be provided for fastening at the lower corner or the upper corner of the window frame. The angle bearings are usually hidden, i.e. they are arranged completely between the window frame and the sash frame. Although the angle bearings are arranged internally, in order to avoid a collision between the window frame and the sash when opening the sash by rotation, the coupling means may be designed such that the sash performs a parking movement transverse to the plane of the window frame when opening (absellbewegung). To this end, the coupling means may in particular comprise a deployment arm and a control arm, which are coupled to each other to form an X-shaped scissors. The coupling means may also comprise a scissor arm that turns towards the tilting fitting, or is designed for coupling to such scissor arm. In this respect, the above-mentioned type of angle bearing may also form a scissor bearing.

Especially due to the increased weight of the sash, a reliable fastening of the bottom plate to the window frame is very important. In principle, the bottom plate can be screwed to the window frame. Alternatively, grub screws oriented at an angle to the plane of the window frame may be used to clamp the base plate to the C-profile element. However, there is the problem that screws screwed into the profile element often lead to corrosion phenomena, since screws are usually designed as steel screws and the profile element as an aluminum component. In addition, since different parts have different thermal expansion coefficients due to different materials, the angular bearing may be loosened due to the difference in tension when heated or cooled.

Disclosure of Invention

The object of the invention is to design a corner bearing of the type mentioned at the outset such that the base plate can be reliably fastened to the window frame without the risk of corrosion or loosening of the corner bearing.

This object is achieved by an angular bearing having the features of claim 1.

The corner bearing according to the invention comprises a corner bracket with a first clamping leg extending in a first longitudinal direction for fastening a bottom plate to a horizontal C-profile element of a window frame and a second clamping leg angled relative to the first clamping leg and extending in a second longitudinal direction for fastening the bottom plate to a vertical C-profile element of the window frame, wherein the first clamping leg of the corner bracket is arranged on a rear side of the bottom plate facing away from the coupling means and is rotatably mounted about an axis of rotation between an insertion position in which the first clamping leg can be inserted into a groove of the horizontal C-profile element and a clamping position in which the first clamping leg engages behind a web of the horizontal C-profile element, wherein the first clamping leg can be pulled in the rotational circumferential direction towards the base plate by means of an adjusting device in order to clamp the base plate on the window frame in the clamping position of the first clamping leg.

The elongated clamping legs of the corner brackets may allow for a larger surface clamping or support than, for example, clamping plates, clamping blocks or clamping discs that are clamped individually or more precisely one after the other. Due to the two mutually angled clamping legs, the bottom plate can be fixed or at least supported on both the horizontal profile element and the vertical profile element.

If the first clamping leg is in the insertion position, it can be oriented parallel to the longitudinal extension of the groove and can be inserted therein without any troublesome threading. The first clamping leg is then rotated into the clamping position, causing the sections of the first clamping leg on both sides of the axis of rotation to pivot in opposite directions, so that two opposite webs of the horizontal C-profile element engage behind in each of these sections. In this way, the first clamping leg can be tensioned laterally into the profile groove. This ensures a particularly secure fastening of the base plate to the profile. The first clamping leg in the clamping position can be pulled against the base plate by operating an adjusting device in order to clamp the web between the first clamping leg and the base plate, thereby fastening the base plate on the horizontal profile element.

When the first gripping leg is turned from the insertion position to the gripping position, the second gripping leg is also rotated therewith and reaches a support position in which it engages over its entire length behind the web of the vertical profile element. In the support position, the second clamping leg, viewed in cross section, can be arranged obliquely with respect to the transverse inner wall and/or the rear inner wall of the profile groove and can thus be supported in the profile groove or tensioned into the profile groove.

Preferably, the axis of rotation extends transversely, in particular perpendicularly, to the rear face of the base plate. The first clamping leg can thus be tensioned laterally into the horizontal C-profile element when the rear side of the base plate rests against the upper side or the lower side of the horizontal C-profile element.

The first clamping leg is preferably mounted on the base plate by a rotary bearing defining an axis of rotation. The swivel bearing can be designed to allow a displacement of the angle bracket relative to the base plate along the swivel axis at least in a partial region, so that the first clamping leg can be axially adjusted for clamping. The area allowing displacement may be defined by a stop. The swivel bearing is preferably designed such that, in addition to rotation about and displacement along the axis of rotation, no further movement of the first clamping leg relative to the base plate is permitted, i.e. uncontrolled swinging or loosening of the first clamping leg is inhibited.

One embodiment of the invention provides that the rotary bearing is designed as an adjusting element of the adjusting device. This saves space.

In particular, the swivel bearing may comprise a bearing screw which passes through a circular hole in the base plate and is received in a threaded hole in the first clamping leg. The first clamping leg may be axially movable by rotating the bearing screw. Furthermore, the first clamping leg may be rotatable about the bearing screw by direct or indirect mechanical loading. The bearing screw preferably passes through the circular hole at least substantially without clearance to prevent the first clamping leg from swinging.

According to an embodiment of the invention, the adjustment device comprises at least one adjustment element remote from the bearing, which adjustment element is arranged spaced apart from the rotational bearing with respect to the first longitudinal direction. Due to the adjusting element remote from the bearing, a clamping force can be exerted on the outwardly pivoted section of the first clamping leg in the clamping position. In order to be able to introduce forces particularly advantageously, the adjusting element remote from the bearing can be arranged in the region of the leg end of the first clamping leg.

The adjusting element remote from the bearing may be an adjusting screw which passes through the base plate with a radial movement clearance and is received in a threaded hole of the first clamping leg. This achieves a particularly simple construction. Due to the radial play, the adjusting screw can be inserted through a corresponding elongated hole or a hole in the base plate that is larger than the diameter of the screw shaft.

According to an embodiment of the invention, the base plate is provided with an angularly projecting supporting leg, the angular bearing comprising a further adjusting screw remote from the bearing, which adjusting screw passes through the angularly projecting supporting leg with a radial movement clearance and is received in a threaded hole of the second clamping leg. The second clamping leg of the corner bracket can thus both support and be tightened for clamping. The support legs may in particular protrude at right angles from the base plate. An adjusting screw remote from the bearing may be arranged on the free leg end of each of the first and second clamping legs.

A further embodiment of the invention provides that the adjusting screws remote from the bearings, in particular the respective adjusting screw remote from the bearing, have a countersunk head and pass through an elongated hole in the base plate, wherein the receiving section for receiving the countersunk head is formed on a front side of the elongated hole facing the coupling device. When an adjusting screw remote from the bearing is guided through the elongated hole at a position offset from the receiving section and screwed into the first or second clamping leg, the countersunk head bears against the edge of the elongated hole and is pressed in the direction of the receiving section in the direction of its deflection force in the conical shape. The respective clamping leg is pushed aside together with the countersunk head. Thus, the clamping leg in the insertion position is automatically moved into the clamping position when the adjusting screw remote from the bearing is screwed in, thereby simplifying the assembly of the angle bearing.

According to a particular embodiment of the invention, the first clamping leg tapers towards the free leg end, so that when said first clamping leg is rotated in the direction of the clamping position, the margin of play increases before the outwardly pivoted free leg end hits the inner wall of the recess. The taper may be formed by the first clamping leg being inclined on one or both sides of the free leg end.

In order to enable particularly simple and cost-effective production and also to ensure high stability, the corner brackets can be designed as one-piece metal parts, in particular as steel plate parts.

The bottom plate preferably extends at least along the first longitudinal direction. This means that the base plate and the first clamping leg are oriented at least substantially parallel to one another when the first clamping leg is in the insertion position. This results in an advantageous, elongated clamping surface.

A special embodiment of the invention provides that the base plate has at least one positioning element projecting from its rear side, which positioning element is designed to be inserted into a groove of a horizontal C-profile element. This simplifies the assembly of the angle bearing. The positioning element may have a width, measured transversely to the first longitudinal direction, which is adapted to the width of the groove opening, so that a transverse sliding of the base plate against the horizontal profile element before final clamping is avoided.

The base plate can have at least two positioning elements spaced apart from one another with respect to the first longitudinal direction, each protruding from the rear face of the base plate and designed for insertion into a groove of a horizontal C-profile element. This ensures a particularly reliable pre-fixing of the base plate on the window frame. If the base plate is provided with angularly projecting support legs, the support legs can also have projecting positioning elements which are designed for insertion into the grooves of the vertical C-profile elements.

The invention also relates to a window, door or the like with a window frame comprising interconnected C-profile elements made of metal, in particular aluminium, and a sash movably mounted on the window frame by means of at least one corner bearing arranged in a corner of the window frame formed by two converging profile elements. According to the invention, the angular bearing is designed as described above. Such a corner bearing is particularly suitable for metal windows, metal doors and the like.

Further developments of the invention can also be gathered from the dependent claims, the description and the drawings.

Drawings

The invention is described below by way of example with reference to the accompanying drawings.

Fig. 1 is a perspective view of an angular bearing according to a first embodiment of the present invention.

Fig. 2 shows a partially exploded view of the angle bearing according to fig. 1.

Fig. 3 shows a bottom view of the corner bearing according to fig. 1, wherein the corner bearing of the corner bearing is omitted.

Fig. 4 shows the angle bearing according to fig. 1 in a partially assembled state on a window frame.

Fig. 5 shows a corner bearing of the corner bearing according to fig. 1 on a profile element of a window frame.

FIG. 6 is an enlarged partial view of the device of FIG. 4 showing the corner brackets in a clamped position.

Fig. 7 shows a top view of the vertical clamping leg of the device of fig. 4.

Fig. 8 is a perspective view of an angular bearing according to a second embodiment of the present invention.

Detailed Description

Fig. 1 to 4 show an angle bearing 11 according to the invention, which forms part of a rotary fitting or a rotary tilting fitting for a window, door or the like. The angle bearing 11 has a base plate 13, which base plate 13 is designed for fastening to a window frame 14 of a window, door or the like, as is partly shown in fig. 4. The window frame 14 consists of

profile elements

81, 82, which are preferably made of metal, in particular aluminum, iron or steel. In each of the

profile elements

81, 82, an elongated, cross-sectionally C-shaped groove 85 is designed with an opening 87 and two

opposite webs

88, 89. In fig. 4 only two of the at least four

profile elements

81, 82 of the window frame 14 can be seen, namely a horizontal profile element 81 and a vertical profile element 82, which converge and thus form a corner 90, here the lower right corner 90, of the window frame 14.

In the embodiment shown, the base plate 13 extends in a first longitudinal direction 16 and is provided with vertically protruding support legs 17 extending in a second longitudinal direction 18. In the mounted state of the angular bearing 11, the first longitudinal direction 16 extends horizontally and the second longitudinal direction 18 extends vertically. The base plate 13 is preferably made of metal.

The coupling means 20 are arranged on the front side 15 of the bottom panel 13 and may be coupled in a substantially known manner to a sash (not shown) of a window, door or the like, in order to rotatably mount said sash on the window frame 14. In the embodiment according to fig. 1 to 4, the coupling means 20 comprise an extension arm 23 and a control arm 25, each mounted on the base plate 13 and couplable to the fan by means of a respective coupling pin 29. The extension arm 23 and the control arm 25 are connected to each other crosswise to form an X-shaped scissors.

In order to fasten the base plate 13 in the lower right corner 90 of the window frame 14, a corner support 30, shown separately in fig. 2, is provided, which is movably mounted on the rear side 33 of the base plate 13 facing away from the coupling device 20. The angle carrier 30 is preferably designed as a one-piece angled metal plate. In particular, the corner bracket 30 has a first clamping leg 35 and a second clamping leg 36 at an angle thereto, wherein the first clamping leg 35 extends in the first longitudinal direction 16 and the second clamping leg 36 extends in the second longitudinal direction 18 in the assembled state of the corner bearing 11 according to fig. 1. As shown, the first and

second clamping legs

35, 36 of the corner bracket 30 are plate-shaped.

As shown in fig. 2, the first clamping leg 35 and the second clamping leg 36 are each provided with an external threaded bore 41, 42 in the region of their free leg ends 37, 39. The first clamping leg 35 is further provided with another internally threaded hole 43. This is arranged between the externally threaded bore 41 of the first clamping leg 35 and said second clamping leg 36. As shown, the first clamping leg 35 has a bevel 46 on both sides of its free leg end 37, thus tapering towards the free leg end 37.

The corner bracket 30 is mounted to the base plate 13 by means of a bearing screw 45 which passes through a circular hole 47 formed in the base plate 13 and is received in an internally threaded hole 43 of the first clamping leg 35. In particular, the bearing screw 45 guided through the circular hole 47 forms a rotary bearing 50 (fig. 1) which, in addition to rotating the angular support 30 about the rotation axis 49, also allows the angular support 30 to be axially adjusted along the rotation axis 49. The axis of rotation 49 extends perpendicularly to the first longitudinal direction 16 and perpendicularly to the rear side 33 of the base plate 13. The axis of rotation 49 also extends parallel to the second longitudinal direction 18. The circular hole 47 is preferably adapted to the rod diameter of the bearing screw 45 so that the swivel bearing 50 does not have any significant radial clearance.

In the outer threaded bores 41, 42, in each case a respective adjusting

screw

53, 54 remote from the bearing is received, which pass through an

elongated hole

55, 56 of the base plate 13. The

elongated holes

55, 56 allow a rotational movement of the angle carrier 30 about the rotational axis 49 within a movement range predetermined by the dimensions of the

elongated holes

55, 56. The first clamping leg 35 of the corner support 30 can be moved in the direction of the rear side 33 of the base plate 13 by screwing in an adjusting screw 53 and a bearing screw 45 received in the external threaded bore 41 of the first clamping leg, which is remote from the bearing. Likewise, the second clamping leg 36 of the corner support 30 can be pulled in the direction of the support leg 17 of the base plate 13 by screwing in an adjusting screw 54 received in the externally threaded bore 42 of the second clamping leg 36, remote from the bearing. The

slots

55, 56 also allow movement transverse to their longitudinal axis. The adjusting screws 53, 54 remote from the bearings and the bearing screw 45 thus form an adjusting device 60 by means of which the corner bracket 30 can be pulled or fastened to the base plate 13. As can be seen in fig. 2, the bearing screw 45 and the adjusting screws 53, 54 remote from the bearing are designed as countersunk screws.

Three positioning elements 65 are arranged on the base plate 13 at a distance from one another. Two positioning elements 65 project from the rear face 33 of the base plate 13, while the positioning elements 65 project from the side faces 66 of the supporting legs 17. The positioning element 65 has a width 67 (fig. 3) which at least substantially corresponds to the width of the opening 87 of the standardized profile slot. For example, the width 67 of the positioning elements 65 may each be 10 mm. In the embodiment of the invention shown, the positioning element 65 is designed as a separate component, which is riveted to the base plate 13. In principle, the positioning element 65 can also be designed integrally with the base plate 13. The corner supports 30 cover positioning elements 65 on the rear side 33 of the base plate 13 or on the side surfaces 66 of the supporting legs 17.

To fasten the corner bearing 11 to the window frame 14, the base plate 13 and the corner bracket 30 are guided in front of the corner 90 of said window frame 14. The insertion of the corner supports 30 and the positioning elements 65 into the openings 87 of the recesses 85 of the horizontal profile elements 81 and the vertical positioning elements 82 is facilitated by the design of the corner supports 30 which are slightly narrower than the openings 87 of the recesses 85. For example, the first and second

gripping legs

35, 36 of the corner bracket 30 are 9.5mm wide. The positioning element 65 resting against the

webs

88, 89 holds the base plate 13 in a defined position and prevents the base plate 13 from moving transversely to the first longitudinal direction 16.

Subsequently, the adjusting screw 53 received in the threaded bore 41 at the end of the first clamping leg 35 remote from the bearing is acted upon by a tool not shown in a transverse displacement direction, which is indicated at 77 in fig. 5 and extends transversely to the first longitudinal direction 16. The first clamping leg 35 rotates about the axis of rotation 49 in a direction of rotation 78, clockwise according to fig. 5. Starting from the insertion position shown in fig. 5, the corner support 30 reaches the clamping position shown in fig. 6 and 7, in which the free leg end 37 of the first clamping leg 35 is located below the web 88 on the left in the drawing, as shown in fig. 6. The portion of the first gripping leg 35 between the axis of rotation 49 and the second gripping leg 36 moves in a direction opposite to the lateral displacement direction 77 and comes under the right web 89 in the figure. The second gripping leg 36 also moves in a direction opposite to the lateral displacement direction 77, as indicated by arrow 79. When the corner bracket 30 is in the clamping position, the second clamping leg 36 is arranged in a slightly inclined position below the web 89 of the vertical profile element 82 on the right in the figure, as shown in fig. 7. Thus, the corner bracket 30 is tensioned in the corner 90 of the window frame 14.

The adjusting screws 53, 54 and the bearing screws 45 remote from the bearings are then tightened to clamp the

webs

88, 89 of the

profile elements

81, 82 between the corner bracket 30 and the base plate 13 and to fix the base plate 13 on the window frame 14.

The actuation of the adjusting screw 53 remote from the bearing in the displacement direction 77 by means of a tool is not absolutely necessary. On the front side of the

elongated holes

55, 56, receiving sections 92 (fig. 2) are provided, which are adapted to countersunk heads 93 of the adjusting screws 53, 54 remote from the bearings. When the respective adjusting

screw

53, 54, which is remote from the bearing, is passed through the respective

elongated hole

55, 56 in a position offset from the receiving portion 92 and screwed into the associated threaded

hole

41, 42, the countersunk head 93 bears on the edge 94 of the

elongated hole

55, 56 and, as a result of the conical shape being pressed transversely in the direction of the receiving portion 92, the

respective clamping leg

35, 36 is also displaced laterally. Thus, when one of the adjusting screws 53, 54 remote from the bearing is screwed in, the corner support 30 in the inserted position automatically moves to the clamping position.

Fig. 8 shows an alternative embodiment of an angle bearing 11' according to the invention, which, like the angle bearing 11 described above, has a base plate 13 and an angle carrier 30. Unlike fig. 1, however, the angle bearing 11 'designed according to fig. 8 has an alternatively designed coupling device 20' with a scissor arm 95 that can be coupled to a fan. The corner bearing 11' thus forms a scissor bearing to be assembled in the upper corner of the window frame 14. It is particularly advantageous that the arrangement of the angular bearing 11 as shown in fig. 1 and the angular bearing 11' as shown in fig. 8 is such that the sash is jointly mounted on the window frame 14. Since the corner supports 30 are rotatable, a particularly reliable mounting and support of the fan is ensured, irrespective of corrosion problems.

List of reference numerals:

11. 11' angle bearing

13 bottom plate

14 window frame

15 front side

16 first longitudinal direction

17 support leg

18 second longitudinal direction

20. 20' coupling device

23 extending arm

25 control arm

29 coupling pin

30-angle support

33 back side

35 first clamping leg

36 second clamping leg

37 free leg end of the first clamping leg

39 free leg end of the second clamping leg

41 external threaded hole

42 external threaded hole

43 internally threaded hole

45 bearing screw

46 inclined plane

47 round hole

49 axis of rotation

50 swivel bearing

53 adjusting screw far away from bearing

54 adjusting screw far away from bearing

55. 56 long hole

60 adjustment device

65 positioning element

66 side surface

67 width of positioning element

77 direction of lateral displacement

78 direction of rotation

79 opposite to the direction of lateral displacement

81 horizontal section bar element

82 vertical profile element

85 groove

87 opening

88. 89 Web plate

90 corner

92 receiving section

93 countersunk head

94 edge

95 scissor arms.

Claims

1. An angle bearing (11, 11 ') for windows, doors or the like, having a base plate (13) which is designed for fastening in a corner (90) of a window frame (14) of a window, door or the like formed by converging C-profile elements (81, 82), and having a coupling device (20, 20 ') which is connected with the base plate (13), which coupling device (20, 20 ') can be coupled with a leaf of a window, door or the like for movably mounting the leaf to the window frame (14),

wherein the angle bearing (11, 11') has an angle bracket (30), the angle bracket (30) having: a first clamping leg (35) extending in a first longitudinal direction (16) for fastening the bottom panel (13) to a horizontal C-profile element (81) of the window frame (14); and a second clamping leg (36) which is angled relative to the first clamping leg (35) and extends in a second longitudinal direction (18), for fastening the base plate (13) to a vertical C-profile element (82) of the window frame (14), wherein the first clamping leg (35) of the corner support (30) is arranged on a rear face (33) of the base plate (13) facing away from the coupling means (20, 20') and is mounted rotatably about a rotational axis (49) between an insertion position, in which the first clamping leg (35) can be inserted into a groove (85) of a horizontal C-profile element (81), and a clamping position, in which the first clamping leg (35) engages behind a web (88, 89) of the horizontal C-profile element (81), wherein the first clamping leg (35) can be brought about by means of an adjusting device (60) in the direction of the rotational axis (49) Is pulled towards the base plate (13) to clampingly secure the base plate (13) to the window frame (14) in the clamped position of the first clamping leg (35).

2. The angular bearing according to claim 1,

it is characterized in that the preparation method is characterized in that,

the rotational axis (49) extends transversely, in particular perpendicularly, to the rear side (33) of the base plate (13).

3. Corner bearing according to one of the preceding claims,

it is characterized in that the preparation method is characterized in that,

the first gripping leg (35) is mounted on the base plate (13) by means of a rotary bearing (50) defining the axis of rotation (49).

4. The angular bearing according to claim 3,

it is characterized in that the preparation method is characterized in that,

the rotary bearing (49) is designed as an adjusting element of the adjusting device (60).

5. The angular bearing according to claim 4,

it is characterized in that the preparation method is characterized in that,

the swivel bearing (50) comprises a bearing screw (45) which passes through a circular hole (47) of the base plate (13) and is received in a threaded hole (43) of the first clamping leg (35).

6. Corner bearing according to one of claims 3 to 5,

it is characterized in that the preparation method is characterized in that,

the adjusting device (60) comprises at least one adjusting element (53) remote from the bearing, which is arranged at a distance from the rotary bearing (50) with respect to the first longitudinal direction (16).

7. The angular bearing according to claim 6,

it is characterized in that the preparation method is characterized in that,

the adjusting element (53) remote from the bearing is an adjusting screw which passes through the base plate (13) with a radial movement play and is received in a threaded bore (41, 42) of the first clamping leg (35).

8. The angular bearing according to claim 7,

it is characterized in that the preparation method is characterized in that,

an angularly projecting supporting leg (17) is provided on the base plate (13), wherein the angular bearing (11, 11') comprises a further adjusting screw (54) remote from the bearing, which passes with radial play through the angularly projecting supporting leg (17) and is received in a threaded hole (42) of the second clamping leg (36).

9. Corner bearing according to claim 7 or 8,

it is characterized in that the preparation method is characterized in that,

the adjusting screws (53, 54) remote from the bearings, in particular the respective adjusting screws (53, 54) remote from the bearings, have countersunk heads (93) and are guided through elongated holes (55, 56) in the base plate (13), wherein a receiving section (92) for receiving the countersunk head (93) is formed on the front side of the elongated holes (55, 56) facing the coupling device (20, 20').

10. Corner bearing according to one of the preceding claims,

it is characterized in that the preparation method is characterized in that,

the first clamping leg (35) tapers towards a free leg end (37).

11. Corner bearing according to one of the preceding claims,

it is characterized in that the preparation method is characterized in that,

the corner supports (30) are designed as one-piece metal parts.

12. Corner bearing according to one of the preceding claims,

it is characterized in that the preparation method is characterized in that,

the bottom plate (13) extends at least in the first longitudinal direction (16).

13. Corner bearing according to one of the preceding claims,

it is characterized in that the preparation method is characterized in that,

the base plate (13) has at least one positioning element (65) projecting from its rear face (33) and designed to be inserted into the groove (85) of the horizontal C-profile element (81).

14. The angle bearing of claim 13,

it is characterized in that the preparation method is characterized in that,

the base plate (13) has at least two positioning elements (65) spaced apart from each other in the first longitudinal direction (16), which respectively project from a rear face (33) of the base plate (13) and are designed for insertion into the grooves (85) of the horizontal C-profile elements (81).

15. A window, door or the like with a window frame (14) comprising mutually connected C-profile elements (81, 82) made of metal, in particular aluminium, and a sash which is movably mounted on the window frame (14) by means of at least one angle bearing (11, 11') arranged on a corner (90) of the window frame (14) formed by two converging profile elements (81, 82),

it is characterized in that the preparation method is characterized in that,

the angle bearing (11, 11') is designed according to any one of the preceding claims.