GB2117442A

GB2117442A - Improvements in or relating to a corner bearing for turn-tilt members of windows doors or the like

Info

Publication number: GB2117442A
Application number: GB08306633A
Authority: GB
Inventors: Ernst Roth
Original assignee: Siegenia Frank KG
Current assignee: Siegenia Aubi KG
Priority date: 1982-03-11
Filing date: 1983-03-10
Publication date: 1983-10-12
Also published as: GB2117442B; FR2523196A1; FR2523196B1; DE8206779U1; CH658700A5; AT386454B; GB8306633D0; ATA67683A

Abstract

A corner bearing for supporting a turn-tilt member in the fixed frame of a window, door or the like, the bearing comprising a support plate (1) having at least one rearwardly projecting carrying pin (3) to engage in a bore in the fixed frame; a mount (10) that is adapted to be fixed to the support plate (1) and which carries a pivot pin (13) tiltable around a horizontal spindle (12) and which is adapted to engage with the turn-tilt member, the mount being adjustable relatively to the support plate and transversely of the plane of the fixed frame by operation of a screwthreaded member (19); and a casing (7) which is rigidly secured to the support plate (1) and has rigid guide protuberances (16) which project forwardly of the support plate parallel to the axial direction of the screwthreaded member and which positively engage grooves (18) formed in said mount, the screwthreaded member (19) being rotatably but nondisplaceably mounted in the support plate to engage the mount, rotation of the screwthreaded member causing axial movement of said mount, the casing being of a depth corresponding at least to the length of the screwthreaded member. <IMAGE>

Description

SPECIFICATION Improvements in or relating to a corner bearing for turn-tilt members of windows, doors or the like This invention relates to a corner bearing for turn-tilt members of windows, doors or the like.

Windows, doors, and other like structures, that are adapted to be opened both by tilting of a movable element about a substantially horizontal axis and by turning the movable element about a substantially vertical axis, are well known. The movable element of such windows, doors or the like is commonly referred to as the "turn-tilt member".

German Utility Model 7818899 discloses an example of a known corner bearing forturn4ilt members.

Such a known corner bearing which is mounted on the fixed frame by a support plate, can withstand a heavy load, can readily be secured to the fixed frame of a window, door or the like and permit adjustment of the sealing engagement between the turn-tilt member and the fixed frame without a pivot strip of such member having to be disengaged from a tilt pivot pin of the corner bearing. Advantageously in this connection, the position of the corner bearing can be adjusted relative to the support plate substantially steplessly, so that very fine adjustment of the sealing engagement between the turn-tilt member and the fixed frame is possible.

However, in the corner bearing disclosed in Germany Utility Model No. 7 818 899 the support plate is formed with continuous apertures above rigid guide protuberances and its mount is formed with similar apertures above slideways with which it is formed, such apertures being adapted to receive fixing screws which are screwed into the fixed frame.

Although this corner bearing construction has proved to be generally satisfactory, it has been found to be disadvantageous in that to adjust the pressure between the turn-tilt member and the fixed frame not only is it necessary to actuate a screwthreaded member, depending upon the direction of adjustment, but also fixing screws extending through the mount and the support plate must be either slackened or tightened, according to the direction of adjustment.

It is an object of the invention to reduce or obviate this disadvantage.

The present invention provides a corner bearing for supporting a turn-tilt member in the fixed frame of a window, door or the like, the bearing comprising a support plate having at least one rearwardly projecting carrying pin to engage in a bore in the fixed frame; a mount that is adapted to be fixed to the support plate and which carries a pivot pin tiltable around a horizontal spindle and which is adapted to engage with the turn-tilt member, the mount being adjustable relatively to the support plate and transversely of the plane of the fixed frame by operation of a screwthreaded member; and a casing which is rigidly secured to the support plate and has rigid guide protuberances which project forwardly of the support plate parallel to the axial direction of the screwthreaded member and which positively engage grooves formed in said mount, the screwthreaded member being rotatably but nondisplaceably mounted in the support plate to engage the mount, rotation of the screwthreaded member causing axial movement of said mount, the casing being of a depth corresponding at least to the length of the screwthreaded member.

Preferably, continuous apertures through which fixing screws can be screwed into the fixed frame are provided in the support plate and the casing below the level of the guide protuberances and the grooves of said mount. Even in this embodiment it should be noticed that it is unnecessary to slacken or tighten the screws for pressure adjustment.

Preferably, the casing is riveted to the support plate by at least three rivets and, desirably at least two of the rivets are disposed in axial prolongation of the guide protuberances on the casing and a third rivet is disposed between the two continuous fixingscrew apertures.

Advantageously, the casing has an end wall which covers at least a part of the front of the mount and which is formed with a continuous aperture positioned to be axially registrable with the screwthreaded member.

The protuberances are preferably disposed in a vertical plane above the fixing-screw apertures, while the screwthreaded member is so secured to the support plate as to be rotatable but axially immobile and is threadedly received in a tapped bore in the mount. To obviate jamming between the screwthreaded member and the tapped bore the screw-threaded member is so secured to the plate as to have limited mobility transversely of its longitudinal axis.

In order that the invention may be more readily understood and so that further features thereof may be appreciated, embodiments of the invention will now be described by way of example with reference to the accompanying drawings, in which: Figure 1 is a front view of a preferred embodiment of a corner bearing of the invention; Figure 2 is a side view of the corner bearing of Figure 1; Figure 3 is a section taken on the line Ill-Ill of Figure 1; Figure 4 is a section taken on the line IV-IV of Figure 1; Figures 5 is a front view showing the support plate zone marked V in Figure 3; and Figure 6 is a front view of a variant of the embodiment shown in Figure 1.

Referring to Figures 1 to 5, a corner bearing comprises a flat support plate 1, which is preferably a metal stamping, which has a vertical mounting strip 1' and, integral with the bottom end thereof, two mounting flanges 1" extending outwardly on opposite sides of the strip 1'. Consequently, the plate 1 has substantially the shape of an inverted T.

Part way along its length, the strip 1' has a countersunk aperture 2 that is adapted to receive a countersunk screw to secure the strip 1' to the visible surface of the frame of a window, door or the like on the room side thereof. Secured to the back of the strip 1' above and below the aperture 2 are carrying pins 3 which can be introduced into appropriate bores in the fixed frame.

As is clear from Figure 5, the flange end of the plate 1 is formed with a number of apertures 4 - 6; the three apertures 4 each receive a rivet pin while the two apertures 5 serve as guides for fixing screws and the aperture 6 receives a screw-threaded member.

Adjacent the laterally extending flanges 1" a casing 7 is rigidly secured to the plate 1. The casing 7 may be constructed, for example, as a zinc or brass die casting. As can best be seen in Figures 3 and 5, three rivet pins 8 project from the back of the casing 7 to engage in the three apertures 4 of the plate 1. The rivet pins are secured in the apertures by being peened or deformed at the back of the plate 1.

The casing 7 is formed with a guide section 9 for a mount 10 which extends upwards beyond the casing 7 by way of two spaced apart arms 11 between which a pivot pin 13 is mounted for limited rotation about a horizontal spindle 12. Conveniently, the spindle 12 is a rotatable screw-threaded member which engages in an internal screwthread 14 of a pin carrier 15 for the pivot pin 13 and provides for limited lateral adjustment of pin 13 relatively to the mount 10.

A pair of spaced-apart rigid guide protuberances 16 are integrally formed with the casing 7 and are so disposed at the same height on opposite sides of the guide section 9 as substantially to bound an I-section guide. Each protuberance 16 has an substantially semicircular cross-section and is disposed in axial prolongation of a respective one of the two top rivets 8 of the casing 7.

In the embodiment of Figures 1 to 4the section 9 of the casing 7 is closed at the front by a wall 17.

The mount 10 so co-operates, by way of a semicircular grooves 18, with the two semicircular protuberances 16 as to be movable only transversely of the plane of the plate 1 and the casing 7.

The mount 10 of the corner guide shown in Figures 1 to 4 must be introduced into the casing 7 before the casing is rigidly connected to the plate 1 by means of the three rivets 8.

The position of the mount 10 within the casing 7 can be adjusted steplessly by means of a screwthreaded member 19 which engages in a tapped aperture 20 in the mount 10 and which is so located in the aperture 6 of the plate 1 as to be rotatable but which is immobile axially. The member 19 can be screwed through a hole 21 in the wall of casing 7 into the tapped aperture 20 in the mount 10 until a rivet formed at one end of the member 19 extends through the aperture 6 to engage in the plate 1, whereafter the rivet is so secured in the aperture 6, by peening or deforming the end of the rivet, as to be rotatable but axially immobile.

In an alternative arrangement shown in FigureS, the aperture 6 in the plate 1 resembles a keyhole and the screthreaded member has a collar followed by a bearing neck formed at the end of the member adapted to engage the plate 1.

To assemble this corner bearing, the screwthreaded member, which has already been screwed into the aperture 20 in the mount 10, first has its collar pushed through the widened part of the keyhole 6, then has the bearing neck pushed into the narrower part of the aperture 6, whereafter the screwthreaded member 19 is rotated until the mount 10 abuts the end face of the plate 1 and the rivets 8 of the casing 7 have engaged in the apertures 4 and can be riveted therein.

The advantage of the keyhole construction of Figure 5 is that the screwthreaded member 19 is so secured to the support plate as to have provision for limited movement transversely of its longitudinal axis; consequently, even a heavy loading of the mount 10 cannot cause jamming between the member 19 and the aperture 20.

Afterthe casing 7 has been secured to the plate 1, countersunk apertures 22 therein come into registration with the apertures 5 in the plate 1 allowing fixing screws to be introduced through the apertures 22, 5 to anchor the corner bearing in the fixed frame of a window to ensure that the whole corner bearing is a rigid fit on the fixed frame.

The corner bearing shown in Figure 6 differs from the corner bearing shown in Figures 1 to 4 in that the casing 7 has no wall 17 at its front end face near the guide section 9 for the mount 10. This omission simplifies assembly of the corner bearing since the mount 10 can be introduced into the casing 7 after the same has been riveted to the support plate 1.

Another advantage of the absence of the wall 17 is that the amount of adjustment of the mount 10 transversely of the plane of the fixed frame can be increased because the mount end face can if necessary be adjusted to a position beyond the casing end face.

Claims

1. A corner bearing for supporting a turn-tilt member in the fixed frame of a window, door or the like, the bearing comprising a support plate having at least one rearwardly projecting carrying pin to engage in a bore in the fixed frame; a mount that is adapted to be fixed to the support plate and which carries a pivot pin tiltable around a horizontal spindle and which is adapted to engage with the turn-tilt member, the mount being adjustable relatively to the support plate and transversely of the plane of the fixed frame by operation of a screwthreaded member; and a casing which is rigidly secured to the support plate and has a rigid guide protuberances which project forwardly of the support plate parallel to the axial direction of the screwthreaded member and which positively engage grooves formed in said mount, the screwthreaded member being rotatably but nondisplaceably mounted in the support plate to engage the mount, rotation of the screwthreaded member causing axial movement of said mount, the casing being of a depth corresponding at least to the length of the screwthreaded member.

2. A corner bearing according to claim 1, wherein continuous apertures through which fixing screws can be screwed into the fixed frame are provided in the support plate and the casing below the level of the guide protuberances and the grooves of said mount.

3. A corner bearing according to claim 1 or claim 2, wherein the casing is riveted to the support plate by at least three rivets.

4. A corner bearing according to claim 1, claim 2 or claim 3, wherein at least two rivets are disposed in axial prolongation of the guide protuberances on the casing and a third rivet is disposed between the two continuous fixing-screw apertures.

5. A corner bearing according to any one of claims 1 to 4, wherein the casing has an end wall which covers at least a part of the front of the mount and which is formed with a continuous aperture positioned to be axially registrable with the screwthreaded member.

6. A corner bearing according to any one of claims 2 to 5, wherein the protuberances are disposed in a vertical plane above the fixing-screw apertures.

7. A corner bearing according to any one of claims 1 to 6, wherein the screwthreaded member is so secured to the support plate as to be rotatable but axially immobile and is threadedly received in a tapped bore in the mount.

8. A corner bearing according to any of claims 1 to 7, wherein the screwthreaded member is so secured to the support plate as to have limited mobility transversely of its longitudinal axis.

9. A corner bearing according to claim 8, wherein one end of the screwthreaded member is adapted to engage in a "keyhole" shaped slot in the support plate.

10. A corner bearing according to claim 9, wherein the said one end of the screwthreaded member terminates in a collar and has a reduced neck portion adjacent said collar.

11. A corner bearing substantially as herein described with reference to, and as shown in, Figures 1 to 5 of the accompanying drawings.

12. Acornerbearing substantially as herein described with reference to and as shown in, Figure 6 of the accompanying drawings.

13. Any novel feature or combination of features disclosed herein.