GB2114211A - Improvements in or relating to a side hinge assembly for windows, doors or the like - Google Patents

Abstract

A side hinge assembly for use with a window, door or the like in which a movable door or window element (2) is mounted for rotation within a fixed frame (1), comprising a bearing bracket (10) adapted to be secured to the fixed frame so as to project therefrom, and a movable pivot member (17) held within the bearing bracket by means of a pivot pin (14), wherein the movable pivot member is engageable with the movable element by way of a stay arm (25), the movable element being lockable to the movable member by means of a claw coupling, operative in a direction parallel to the movable element plane, having a locking mechanism operative transversely of said plane consisting of a slidable locking element movable to a locking engagement position, the movable pivot member comprises a plate (18) held in the bearing bracket by means of two spaced apart cantilever arms (19', 19''), the stay arm (25) being articulated on said plate, the bearing bracket (10) comprises two bearing bosses (13', 13'') disposed one above the other in spaced relationship and connected by a web (15) extending laterally and parallel to the said pivot pin (14) which is at least partially exposed between the cantilever arms (19', 19'') of the movable pivot member (17) and/or the bearing bosses (13', 13'') of the bearing bracket (10), and wherein said claw coupling comprises a U-shaped locking claw (38) secured laterally to a surface of the movable element, such that, when the movable element is in a closed position or in a turned-open position, the claw (38) engages the exposed part of the pivot pin (14) and is received in a free space formed between the pivot pin (14) and the web (15). <IMAGE>

Description

SPECIFICATION Improvements in or relating to a side hinge assembly torwindows,doors or the like This invention relates to a side hinge assembly for windows, doors orthe like.

Windows that can be both turned and tilted open are known.

A side hinge and stay arm forturn-and-tilt windows and doors orthe like is described in German Utility Model 8117256.

Suchturn-and-tilt hinge assemblies have a main body in the form of a load-bearing stay mechanism having stay arms, which are horizontal, located at the top of a window and are not suitable for use with, for example, turn-and-tilt windows or doors or the like having a round arch construction of the kind required mainly, although not exclusively, forthe renovation of old buildings.

twill be evident that, because ofthe special conditions applying, round-arch turn-and-tiltwin- dows or doors or the like are manufactured only in relatively small quantities and therefore there is only a relatively small demand forturn-and-tiltfittings suitableforthis purpose.

To meetthis demand, with a tolerable outlay technically, it is important to design those components of the hinge assemblies which cannot be otherwise used as conventional fittings so that they require little outlay in respect of manufacture and storage and so that they can be readily fitted by the window and door manufacturers.

Practical experience with round-arch turn-and-tilt windows and doors or the like has shown that it is not possible to bed the glass in the frame as securely as is possible with normal windows and doors, having a rectangular contour, so that the long-term design strength of such windows leaves much to be desired.

In one aspect, the invention provides an assembly for use with a window, door orthe like in which a movable doororwindow element is mounted for rotation within a fixed frame, comprising a bearing bracket adapted to be secured to the fixed frame so as to project therefrom, and a movable pivot member held within the bearing bracket by means of a pivot pin, wherein the movable pivot member is engageable with the movable element by way of a stay arm, the movable element being lockabletothe movable member by means of a claw coupling, operative in a direction parallel to the movable element plane, having a locking mechanism operative transversely of said plane consisting of a slidable locking element movable to a locking engagement position, the movable pivot member comprises a plate held in the bearing bracket by means oftwo spaced apart cantilever arms, the stay arm being articulated on said plate, the bearing bracket comprises two bearing bosses disposed one above the other in spaced relationship and connected by a web extending laterally and parallel to the said pivot pin which is at least partially exposed between the cantilever arms of the movable pivot member and/orthe bearing bosses ofthe bearing bracket, and wherein said claw coupling comprises a locking claw secu red laterally to a surface ofthe movable element, said claw having a substantially U-shaped cross-section and having its open side facing the frame such that, when the movable element is in a closed position or in a turned-open position, the claw engages the exposed part of the pivot pin and is received in a free space formed between the pivot pin and the web.

The use of such a hinge assembly in a window, door or the like has the advantage that the stresses occurring, particularly when the window is turned into an open position, can be transmitted to the fixed frame over a short distance, those components of the side hinge and stay arm which are necessary for tilting operation of the window being substantially relieved of load. The side hinge is also prevented from being undesirably decoupled even in the "turned-open" position, for example, in the event of the composite turn-and-tilt fitting being incorrectly operated.

Preferabiy, the locking claw is adapted to be secured to a surface ofthe movable element by way of a screw bolt so asto be horizontally adjustable in the direction of the movable element plane and the stay arm is so mounted on the plate ofthe movable pivot member as to be adjustable in the direction fif the movable element plane by way of a bearing boat.

This gives the advantage that the movable element can, if necessary, be adjusted in parallel to its plane in respect of its position relative to the fixed frame.

Desirably, the two cantilever arms together with the plate of the movable pivot member form an angularmemberwhich is constructed symmetrically with respect to a horizontal plane. In this case, the plate may be provided with a bearing bore on the plane of symmetry in which the bearing bolt of the stay arm is retained, by means of a screw element, for axial adjustment and rotation.

A construction of this kind facilitates optional right-hand or left-hand use of the side hinge assembly, by enabling the bearing brackettogetherwiththe movable element pivot memberto be turned through 1800 aboutthe stay arm bearing bolt, and also ensuresthatthe side hinge and stay arm can be fitted practically continuously to windows and doors of different widths while also ensuring continuous alignment of the window, with the locking clawfitted thereon, to the pivot pin mounted in the bearing bracket on the fixed frame side.

To facilitate the hanging of the movable element the screw bolt of the locking claw may be adapted to engage on and/or in a surface ofthe movable element, with its longitudinal axis lying on the plane of symmetry ofthe movable pivot member.

Preferably, the bearing bracket has a guide aper ture orguide recessfor receiving a scribing or drilling tool, said aperture or recess having its longitudinal axis intersecting the longitudinal axis of the pivot pin at right angies. This arrangement has been found to facilitate provision of the engagement or fixing bore for the locking claw on the surface ofthe movable element disposed and aligned in the fixed frame. To usethescribingand drilling tool the pivot pin is simply axially displaced relatively to the bearing bracket and to the movable pivot member until it clears the region of the guide aperture or recess but is still in bearing engagement with a bearing boss of the bearing bracket and with a cantilever arm of the movable element pivot member.

In orderthatthe invention may be more readily understood, and so thatfurther features thereof may be appreciated, an embodiment of the invention will now be described by way of example with reference totheaccompanying drawings, in which: FIGURE lisa diagrammatically simplified front elevation of a round arch window in accordance with the present invention that is provided with a combined turn-and-tiltfitting; FIGURE 2 is a detailed view of a side hinge and stay arm disposed in zone II of the window shown in Figure 1; FIGURE 3 shows the side hinge and stay arm of Figure 2 viewed in the direction ofthe arrow III with the movable element in the tilted-open position; FIGURE 4is a plan viewofthe arrangementshown in Figure 3; and FIGURE 5 is a section takenn on the line V-V in Figure 2, with the movable element in a turned-open position.

Figure 1 of the drawings shows a round arch window consisting of a fixed frame 1 and a movable element 2. The window is constructed as a turn-andtiltwindow, i.e. the movable element 2 can be moved relatively to the fixed frame 1 optionally either about a lateral vertical axis 3-3, into a "turned-open" position, or about a bottom horizontal axis 4-4 into a "tiltedopen" position. Acombined turn-and-tiltfitting 5 is provided inthe movableelement2and can be operated selectively, via a handle 6, to lock closed the movable element2withinthefixedframe 1 and optionallyto enable the moveable element 2 to be opened by either a turning movement of by a tilting movement.

The movable element2 is supported atthe point of intersection ofthe axes 3-3 and 4-4 by a corner bearing 7. Aside hinge8 is provided, in alignment with the pivot axis 3-3, at a distance above the corner bearing 7, the function and construction of which will be described in detail below. Stilt hinge 9 is also provided, on the pivot axis 4-4, near the bottom cornerofthewindowoppositetothe corner bearing 7. The side hinge 8 and the tilt hinge 9 are actuated jointly by means of the combined turn-and-tilt fitting 5, the tilt hinge 9 being disengaged when the side hinge 8 is in its engaged position, and vice-versa.

As shown in detail in Figures 2 to 5, the side hinge 8 comprises a bearing bracket 10 which is so mounted on the fixed frame 1 as to projecttherefrom and which is symmetrical with respect to a horizontal plane 11-11.

To fixthe bracket 1 Oto an end face ofthefixed frame 1, on the room side, the said bracket has two co-planer mounting flanges 12' and 12". Two spacedapart bearing bosses 13' and 13", which are integral with the flanges 12', 12", project perpendicularly of theflanges and are adapted to accommodate a pivot pin 14 in line with the pivot axis 3-3.

The distance between the two bosses 13' and 13" is bridged by a web 15formed intregrallywith the bearing bracket 10 and extending with lateral spacing from and parallel to the pivot pin 14.

A housing 1 which is open only on two sides, i.e.

towards the room side and towardsthe rebate side of the fixed frame 1, is situated adjacent the back of the bearing bracket 10 and is received in a matching recess formed in the fixed frame 1.

A part 17 ofthe side hinge 8 is pivotally suspended in the bracket 10 between the bosses 13' and 13" on the pivot pin 14. The part 17 comprises two cantilever arms 19' and 19" rigidly and integrally connected to a plate 18 which together with the said arms forms an angular member20 which is symmetrical with respectto a horizontal plane 21-21,which coincides with the plane of symmetry 11-11 ofthe bracket 10.

Arms 19' and 19" are disposed one above the other and spaced apart, at a distance indicated as 22. The pin 14 passes through apertures in the arms and the pin 14 is exposed between the arms 19' and 19" towards the room side and towards a peripheral surface 2' of the movable element2that is adjacent the bracket 10.

The plate 18 of member 20 has a bearing bore 23 which is situated with its axis on the plane of symmetry 21-21 and which extends both at right angles to the axial plane of pin 14 and at right angles to the arms 19',19"through which the pin 14 passes.

Abearing bolt24extendsthrough bore 23 and bears, at its top end, a stay arm 25 that is rigidly secured thereto. This arrangement enables the arm 25 to be pivoted about a horizontal axis relatively to the part 17.

The free end of bolt 24 is screwthreaded and co-operates with an adjustment nut 26 which is secured in the plane 18 of member 20for rotation but to be axially non-displaceable. Rotating the nut 26 thus causes the bolt 24to move axially in relation to the plate 18 so thatthe distance between the plane of pivoting of the stay arm 25 aboutthe bolt 24 and of the pivot axis 3-3 (in which the pivot pin 14 lies) of the bearing bracket 10 can be adjusted. The adjustability ofthe plane of pivoting ofthe arm 25 in relation to the pivot pin 14,that is held on the pivot axis 3-3 ofthe fixed frame ofthe window, has two basic advantages.

Firstly, the side hinge 8 can without difficulty be adjusted to accommodate different widths of movable window elements 2. Secondly,the relative position of the movable element 2 parallel to its plane in relation to the fixed frame 1 can be readjusted and thus any inaccuracies ofthe adjacent parts can be compensated for, for instance so that a movable eiement 2 which has sagged somewhat in use can be re-lifted to the correct position.

The other end of the arm 25 engages a guide pin 27 in a guide slot 28 of a facing rail 29 anchored, e.g.

screwed,tothe upright peripheral rebate surface of the movable element 2 on the pivot side thereof. The arm 25 is also connected, by a pivot pin 30, to an extra arm 31 which is in turn held in engagement, via a guide pin 32, within a shorter guide slot 33 in the facing rail 29.

A coupling claw 34, having a U-shaped crosssection, is rigidly secured on the rail 29 at a distance above the guide slot 33 and said claw engages around the cross-section of the stay arm 25 when the latter is in a position parallel to the rail 29. Additionally, a drive rod 35 is guided for displacement on the back of the rail 29. The drive rod 35 is coupled to the composite fitting 5and co-operates, through a slot36 in the rail 29, with a C-shaped cross-section locking claw 37 by means of which the end ofthe stay arm 25 bearing the bolt 24 can be fixed on the rail 29 both in the closed position and in the "turned-open" position ofthe movable element, i.e. when the arm 25 is parallel to the rail 29.

The weight ofthe movable element is transferred to the bearing bracket 10 on the fixed frame 1 via the stay arm 25, the guide pins 27 and 32 and via the coupling claw 34 and the locking claw 37 when the movable element is moved into the "turned-open" position by means of the pivot 24 and the angle member 20.

To tilt moveable element 2 open with respect to the fixed frame 1 ,the locking claw 37 must be disengaged from the top end of the stay arm 25 so that the stay arm 25 and the extra arm 31 can pivot into the position shown in Figures 3 and 4 between the movable element 2 and the fixed frame 1. In the "tilted-open" position the coupling claw 34 ofthe rail 29 is also disengaged from the arm 25.

The side hinge 8 and the stay arm 25 can be optionally fitted either to the right or left side ofthe fixed frame 1 and the movable element 2, simply by inverting the bearing bracket 1 Otogetherwith the part 17 held therein through 180" relatively to the arm 25 aboutthe bolt 24, and by turning the coupling claw 34 on the rail 29 through 180".

Alteration from right-hand to left-hand hanging of the movable element 2, and vice-versa, are so simplified because the stay arm 25, extra arm 31, and facing rail 29 are all of symmetrical construction with respect to their longitudinal centre-lines.

Laterally adjacent the peripheral surface 2' ofthe movable element 2, a locking claw 38, having a substantially U-shaped cross-section, is secured with its open side 38' facing the fixed frame 1. The claw 38 is adapted to engage the pivot pin 14 in the region 22 betweenthetwo arms 19' and 19" ofthe part 17 when the movable element 2 is in both the closed and "turned-open" positions.

The claw 38 co-operates not only with the pivot pin 14 but also with the web 15 of the bearing bracket 10.

The web 15 is in fact so arranged and constructed as to automatically prevent the locking claw 38 from being disengaged from the pivot pin 14when the movable element 2 is moved into a "turned-open" position which exceeds a given angle with respect to the fixed frame 1 This considerably restricts the possibility of faulty "tilting" movement of the movable element 2 when this is in its "turned-open" position.

Another important function ofthe locking claw 38, in co-operation with the pivot pin 14, is to relieve the stay arm 25, extra arm 31, coupling claw 34 and claw 35 ofthe side hinge 8 ofthe force transmitted to the fixed fame 1 as a result ofthe weight of the movable element 2.

To this end, the locking claw 38 is anchored to the surface 2' ofthe movable element 2, in the immediate vicinity of the pivot axis 3-3 while it also directly engages the pivot pin 14 of the bearing bracket 10 on the fixed frame side, said pivot pin 14 being in line with the pivot axis 3-3.

To enablethe operative connection between the locking claw 38 and the pivot pin 14, both in the closed and the "turned-open" positions of the movable element 2, before any appreciable loads from the weight of the movable element can act on the other component parts of the side hinge 8, the locking claw 38 is secured for horizontal adjustment, by means of a screw bolt 39, in the direction ofthe plane of the movable element. The screw bolt 39, which is rigidly connected, e.g. welded, to the locking claw 38 preferably engages as a drilled-in member in the surface 2' of the movable element. When the locking claw 38 is engaged, the bolt 39 is situated, with its longitudinal axis in the plane of symmetry 21-21 of the bracket 10, on the frame side and of the movable pivot member 17.The relative position of the locking claw38, transversely of the pivot axis 3-3 and the pivot pin 14, with respect to the movable element 2 can thus be changed at anytime byturning the screw bolt 39 through 360" in order to provide at least coarse adjustment of the engagement between the locking claw and the pivot pin 14. For fine adjustment of this engagement, the stay arm 25 can be adjusted by way of the bearing bolt 24 and the nut 26.

In ordertofacilitate reliable positioning of the bore-hole for the screw bolt 39 of the locking claw' 33 in the peripheral cheeck surface 2' of the movable window element 2 in relation to the bearing bracket 10 and the part 17 after the movable element 2 has been aligned in the fixed frame 1 by means of the corner bearing 7 and the side hinge 8, the web 15 of the bearing bracket 10 is provided with a guide recess 40 for receiving a scribing and drilling tool, enabling such tools to be aligned on the plane of symmetry 21-21. The recess 40 is so devised that its longitudinal axis intersects the longitudinal axis ofthe pivot pin 14, i.e. the pivot axis 3-3, at right angles.

In orderto use the guide recess 40 for the scribing and drilling tool,the pivot pin of the side hinge8 has to be axially displaced sufficiently for it to free the areaforthe scribing and drilling tool while still remaining in engagement at least with one of the arms 19', 19" of the pivot member containing the bearing bosses 13', 13" of the bearing bracket 10.

Use of a hinge assembly in accordance with the present invention has been foundto provide a turn-and-tiltwindowordoororthe like in which the functional components of the side hinge and stay arm provided between the bearing bracket on the frame side and the movable element are relieved of the stresses which resultfrom turning the movable element into the open position.

The invention has also been found to prevent incorrect operation of the window or door when the movable element is in its "turned-open" position, without any extra outlay techincally, thus preventing overloading of the side hinge and stay arm.

The side hinge of the invention has been found to offer a space-saving design, allowing optional right hand and left-hand hanging, whilst providing high load-carrying capacity and optimised security against incorrect operation.

Claims (12)

1. Aside hinge assembly for use with a window, doororthelikeinwhich a movabledoororwindow element is mounted for rotation within a fixed frame, comprising a bearing bracket adapted td be secured to the fixed frame so as to projecttherefrom, and a movable pivot member held within the bearing bracket by means of a pivot pin, wherein the movable pivotmemberis engageable with the movable element by way of a stay arm, the movable element being lockable to the movable member by means of a claw coupling, operative in a direction parallel to the movable element plane, having a locking mechanism operative transversely of said plane consisting of a slidable locking element movable to a locking engagement position, the movable pivot member comprises a plate held in the bearing bracket by means of two spaced apart cantileverarms, the stay arm being articulated on said plate, the bearing bracket comprises two bearing bosses disposed one above the other in spaced relationship and connected bya web extending laterally and parallel to the said pivot pin which is at least partially exposed between the cantilever arms of the movable pivot member and/orthe bearing bosses of the bearing bracket, and wherein said claw coupling comprises a locking claw secured laterally to a surface of the movable element, said claw having a substantially U-shaped crosssection and having its open sidefacingtheframe such that, when the movable element is in a closed position or in a turned-open position,the claw engages the exposed part ofthe pivot pin and is-- received in a free space formed between the pivot pin and the web.

2. Ahinge accordingtoclaim I,whereinthe locking claw is adapted to be secured to a surface of the movable element by way of a screw bolt so asto be horizontally adjustable in the direction ofthe movable element plane and the stay arm is so mounted on the plate ofthe movable pivot member asto be adjustable in the direction ofthe movable element plane byway of a bearing bolt

3. A hinge according to claim 1 or claims 2, wherein the two cantilever armstogetherwith the plate ofthe movable pivot memberform an angular member which is constructed symmetrically with respectto a horizontal plane.

4. A hinge according to claim 3, wherein the plate is provided with a bearing bore on the plane of symmetryinwhich the bearing boltofthe stayarm is retained, irymeans of a screwelement,foraxial t adjustment and rotation.

5. A hinge according to any one of claims 1 to 4, wherein the screw bolt ofthe locking claw is adapted to engage on and/or in a surface ofthe movable element, with its longitudinal axis lying on the plane of symmetry of the movable pivot member

6. A hinge according to any one of claims 1 to 5, wherein the bearing bracket has a guide aperture or guide recess for receiving ascribingordrillingtool, said aperture or recess having its longitudinal axis intersecting the longitudinal axis of the pivot pin at right angles.

7. A hinge according to claim 6, wherein the guide aperture or recess is provided in the web ofthe bearing bracket and in said plane of symmetry.-:

8. Awindow, door or the like, comprising a side hinge according to any one of claims 1 to 7.

9. A window, door or the like according to claims, wherein said side hinge is received in a recess of the fixed frame between the lateral upright rebate surfaces of the movable element and the fixed frame.

10. A hinge substantially as herein described with reference to and as shown in the accompanying drawings.

11, A window, door or the like substantially as herein described with reference to and as shown in the accompanying drawings.

12. Any novel feature and combination offeatures described herein.