GB2115050A - Combined glazing strip and frame protector - Google Patents

Abstract

A glazing strip, e.g. of metal, for a wooden framed window secures the pane 5 in position against the rebate 4 and also protects the surface 9, 14 of the frame against the effects of the weather; the strip of angled cross- section is retained by a flange 21 snap-fitted in channels 16 in anchorage members 13, has a flange 20 to space it from the frame and a mounting 11 for a resilient strip 12. The anchorage members 13 and retaining flanges 21 are arranged to resist movement at right-angles to the pane. <IMAGE>

Description

SPECIFICATION Improvements to windows The present invention relates to an improvement to a wood-made window of the type which, on the one hand, protects'the wood against the effects of the weather in that the wood is enclosed in a protective metal jacket and, on the other hand, realises reliable mounting of the glass pane unit in the casement.

Various forms of so-called glazing beads are known in the art, these being made of metal and, by means of snap-connection, being fixed to a casement in order thereby to urge into fixed anchorage a sealed insulating glass unit in the casement.

The prior constructions cannot offer complete protection for the casement proper, since they do not enclose the casement in its entirety.

Furthermore, the reliability of the mounting which is realised using the glazing bead can be called into question, since it is dependent upon a high degree of precision in the saw-tooth shaped snapping lock which is employed. Thus, it cannot be ruled out that the snap locks either already at the assembly stage suffer from such deformation as may seriously jeopardize their reliability or that movement in the wood of the casement injuriously affect the functional reliability of the snap locks. In all probability, the origin of items of risk of this type is to be found in the fact that the extent of the locking surfaces of the snap locks is too small by far. Furthermore, the fixing in place of the glazing bead requires such a powerful mounting force that the glazing bead can hardly be mounted in place other than in a factory where, for example, a hydraulic press can be used.

Protective jackets pure and simple are also previously known in the art for casements and window frames, these being preferably manufactured of sheet metal.

The sheet metal jackets previously disclosed do not however offer satisfactory protection for the casement and, naturally, neither can they realise fixation of the window panes in the casement. Neither can the sheet metal jackets in question be considered as aesthetically attractive, since they do not follow, in a natural manner, the normal design contours of a window.

In many older types of protective coverings and jackets, or glazing beads, it has also been necessary to work the casement or frame, for example by the milling of recesses grooves or the like. For a window mounted in place, this entails serious drawbacks both as a result of the machining proper, and as a result of the fact that the surface treatment and rot protection of the window would be ruined. Thus, this machining entails, even in the case of vacuum-impregnated windows, that the rot-protection is seriously damaged without the possibility of full restoration unless a completely new treatment process be applied.

The object of the present invention is to realise such an improvement to windows as offers a complete protection for the wooden parts of the window, at the same time as the panes may be mounted reliably in the casement, and an aesthetically attractive appearance will be imparted to the entire window. Naturally, the invention also has for its object to realise an improvement which does not suffer from the above-mentioned drawbacks inherent in prior art constructions in this field, and which, moreover, is both simple and economical in manufacture and in assembly.

These objects are attained according to the present invention by means of an apparatus for protecting a window made of wood in which, at least one glass pane is disposed in a glazing rebate in the casement and retained by means of a clamping fillet, the apparatus being characterised in that the clamping fillet has an anchorage portion for cooperation with a yieldable sealant strand urging against the outer face of the pane, and a support portion in spaced apart relationship thereto, for abutment against the outside of the casement, that the casement has a number of anchorage members with retaining surfaces which are designed for cooperation with an anchorage projection disposed on the clamping fillet between the anchorage portion and the support portion, the retaining surfaces and the anchorage projection being of such design and relative location to one another that the anchorage portion is positionally fixed against movement at right angles to the face plane of the glass away from the glass pane.

In a suitable embodiment, in which the clamping fillet is manufactured of metal, preferably of extruded aluminium, the present invention suitably calls for the production of the clamping fillet in one piece with two shanks making an obtuse angle with one another, the support portion being disposed for abutment against the edge portion of the casement most distal from the glass pane, and the anchorage member being disposed at the region of connection of both shanks of the clamping fillet.

The subject matter of the present invention is further characterised in that the anchorage projection is in the form of a bead which is approximately parallel to the glass pane and which, on the side of the clamping fillet turned to face the casement, extends out from the most proximal shank of the clamping fillet in relation to the glass pane, and that the retainer surfaces are arranged to define pockets in the anchorage members in a direction facing away from the pane, the pockets being open to accept the insertion of the anchorage portion in a direction which is parallel to the plane of the glass.

The invention will be described in greater detail below with reference to the accompanying drawings. in the accompanying drawings, Fig. 1 is a horizontal cross-section through the edge portion of the window with its frame, casement and glass. Fig. 2 is a vertical cross-section through a window with the upper and lower portions of the frame and with the upper and lower portions of the casement.

The window illustrated in the drawings is a socalled H-window, which entails that the casement, on being opened, is first shifted outwardly, at its lower portion the entire casement being thereafter pivoted about a horizontal axis at the same time that the entire casement is lowered. This entails that the upper portion of the casement, on commencement of the opening procedure, moves substantially parallel to the plane of the glass in a downward direction, at the same time as the lower portion of the casement moves at right angles to the plane of the glass out from the frame. On further opening of the window, after having manually released a latch mechanism it is possible to pivot the entire casement in such a manner that the outer face of the window will be turned to face inwardly.

Fig. 1 shows, at reference numeral 1, the inside of the vertical portion of the window frame 2. The vertical portion of the window casement 3 is disposed closely adjacent the window frame 2, this portion having a rebate 4 for cooperation with one edge portion of a triple-pane sealed insulating glass unit 5. The glass unit is held in place in the casement by means of spacers 6 and a yieldable sealant strand 7 preferably manufactured of foam rubber.

In order to protect the casement from the effects of weather, the exterior surfaces of the entire casement are jacketed with an aluminium profile which may preferably be manufactured by extrusion. The aluminium profile has two shanks, of which a front shank 8 is disposed parallel and covering the outside 9 of the casement 3. The other shank constitutes an inner shank 10 and makes an obtuse angle with the front shank 8 and extends into the region of the glass unit 5. The inner shank 10 has, at its end turned to face the glass unit 5, a mounting 11 which is intended for accommodating a sealant strand 12 which is manufactured of an elastically yieldable material and which urgingly abuts against the glass.

Suitably, the mounting 11 may be designed as an undercut groove in a thickened edge portion of the inner shank, whereas the sealant strand 12 has a corresponding projection which may thus be passed into the mounting.

Since the front shank 8 is of substantially the same extent as the outside 9 of the casement and, moreover, the inner shank 10 extends to the immediate proximity of the glass 5, the outwardly visible surfaces of the casement 3 will be completely covered by the aluminium profile.

Furthermore, as will be apparent from the drawing, the aluminium profile is disposed in slightly spaced apart relationship from the wood surfaces of the casement, whereby suitable ventilation may be provided for.

For fixedly retaining the aluminium profile, use is made of a number of anchorage members 13 which are preferably disposed in the corner regions of the casement. These anchorage members 13 are, in cross-section, in the form of angle profiles which are disposed with one shank on the outside 9 of the casement and one shank on the inner edge 14 of the casement.

Furthermore, the anchorage members 13 are designed in such a manner as to extend about the corner between the vertical portions 3 of the casement and its upper and lower portions. Thus, seen at right angles and face-on to the surface of the glass unit 5, the anchorage members 13 will be in the form of angles which are secured in the casement by suitable securing means 15, such as screws or nails.

The anchorage members 13 have, towards the inner edge 14 of the casement 3, open pockets 16 which are defined by the outside of the anchorage member proper and by an L-shaped projection 17 thereon. The projection 17 has a retaining surface 18 which is intended for cooperation with the aluminium profile and is approximately parallel to the face plane of the glass unit 5. Furthermore, the retainer surface 18 may suitably be provided with a locking catch 19 whose function will be described in great detail below.

For its attachment to the casement 3, the aluminium profile 8, 10 has a support portion 20 which extends from the front shank 11 and into abutment against the outside 9 of the casement.

Furthermore, the aluminium profile has, in the connection region between the front shank 8 and the inner shank 10, an anchorage projection 21 which is approximately parallel to the face plane of the glass unit 5 and which may be inserted into the pockets 16 on the anchorage members 13.

The purpose of the above-mentioned locking catches 19 on the projections 17 of the anchorage members 13 is to snap into corresponding grooves in the anchorage projection 21.

The window frame 2 also has, on its outwardly facing side 22, a protective jacket of aluminium.

This protective jacket is also designed as an aluminium profile which is suitably manufactured by extrusion. In general terms, the aluminium profile may be described as a shallow U-shaped profile with a front surface 23 and two side members 24 and 25. At their end turned to face the outside 22 of the frame 2, the side members 24 and 25 have at their inner sides protruding locking projections 26 which are intended to snap into engagement with corresponding projections on an anchorage portion 27. Furthermore, the side member 25 turned to face away from the casement 3 has a groove 28 for accommodating an edge portion of a connecting sheet metal member. The opposite side member 24 is provided with a protruding bead 29 which extends in towards the front shank 8 of the aluminium profile mounted on the casement 3.

The bead 29 on the aluminium profile of the frame extends in and partly covers the space between the frame 2 and the casement 3. At its free end, this bead has a bent portion which, together with an edge portion of the front shank 8 on the aluminium profile of the casement and a projection 30 disposed rearwardly in relation thereto, forms a labyrinth seal to prevent excessive draught in between the casement and the frame.

It is apparent from Fig. 2 that the upper portion 31 of the casement and its lower portion 32 are provided with aluminium profiles in the same manner as the vertical portion of the casement.

However, the aluminium profile on the upper portion 31 of the casement is not provided with the protruding edge portion and projection 30 for forming the above-described labyrinth seal, since the upper portion 33 of the frame has a protective member 34 lying outside the front shank 8 of the aluminium profile. On the other hand, the aluminium profile on the lower portion 32 of the casement is designed fully in accordance with that described above.

The lower portion 35 of the frame also has a protective portion 36 or an aluminium window sill.

Mounting of a casement according to the invention is effected as follows. In a conventional manner, the insulating glass unit 5 is placed in the glazing rebate in the casement, sealing fillets 7 and spacers 6 being employed. Furthermore, as has been intimated above, a number of anchorage members 13 are applied, which should at least be placed at the corners of the casement, but which, naturally, depending upon the size of the casement, may also be placed on the vertical portions 3 of the casement and its upper and lower portions 31 and 32 respectively.

Thereafter, the upper and lower portions of the aluminium profiles of the casement are clipped so that the inner shanks 10 will be straight and will lie in the immediate proximity of the inner edges 14 on the vertical portions 3 of the casement. The aluminium profiles with the anchorage projections 21 are urged into the pockets 16 on the anchorage member 13 in a direction which is parallel to the front face plane of the glass unit 5, the support member 20 sliding against the outside 9 of the casement. This insertion of the aluminium profile into engagement with the anchorage members may either be effected by compression of the sealant strands 12 or the sealant strands may also be mounted subsequently and "rolled" in between the anchorage portion 11 of the aluminium profile and the outside of the glass unit.As a result of the yield ability of the sealant strand 12, and possibly to a certain extent the sealing fillet 7, the aluminium profile will be urged in an outward direction at right angles away from the glass unit 5, a shifting in this direction being, however, prevented by the projections 1 7 on the anchorage members 13. At the same time, the support portions 20 of the aluminium profile will be urged against the outside of the casement, since the aluminium profile may be likened to a doublearmed lever in which the fulcrum lies in the locking catch 19 on the projection 17 of the anchorage members.

It should be pointed out that the illustrated and described design and employment of the anchorage portions 13 and the aluminium strips requires no working or alteration of an extant window, for which reason rot protection by means of vacuum impregnation or other surface treatment will not be injuriously affected.

As a result of the above-described design of the anchorage members 13 and the anchorage projection 21 on the aluminium profiles, neither the aluminium profile nor the anchorage members need be deformed in the assembly operation.

Thus, for retention of the aluminium profile, no spring action is employed in any metal or plastic material for realising the snap action, the aluminium profile being instead realiably held in place quite simply by being urged in beneath the projection 19. In normal cases, the friction between this projection and the anchorage projection 21, between the support portion 20 and the outside 9 of the casement, and between the sealant strand 12 and the glass unit 5 will be fully sufficient to prevent shifting of the aluminium profile in a direction along the face plane of the glass unit so as to release the aluminium profile. Use of the locking catch 19 and the corresponding groove in the anchorage projection may be considered as an extra hindrance to unintentional dismantling.

Both of the aluminium profiles which are disposed on the vertical portions 3 of the casement are mitred at their ends and abut with their edges 37 immediately proximal the inner shanks 10 on the aluminium profiles of the upper portions 31 of the casement and its lower portion 32. Both of these vertical aluminium profiles are, naturally, mounted once the aluminium profiles have been mounted in place on the upper and lower portions of the casement. Mounting of these two profiles is effected in the same manner as has been described above, the profiles being, thus, slid into their positions in a direction which is parallel to the face plane of the glass unit 5.

Even if the sealant strand 12 realises an urging abutment against the glass unit 5 and, thus in most cases a fully satisfactory seal, at least the space behind the aluminium profile on the lower portion 32 of the casement must be drained and ventilated. This is realised according to the invention in that the portion of the aluminium profile extending towards the front 9 of the casement with its support portion 20 is provided with a number of operings which thus allow the departure of any possible accummulated rainwater. In a corresponding manner, ventilation openings may be provided in the corresponding portion of the aluminium profile on the upper portion 31 of the casement.

In one alternative to the sealant strand 12 illustrated on the drawings, use may be made of a narrower strand which forms a shallow gutter between the aluminium profiles and the glass unit, this gutter being subsequently filled with a strand of sealant, preferably of the silicon type, so that the window will thereby be so-called top sealed.

The invention may be modified without departing from the scope of the accompanying

Claims (4)

claims. Claims

1. An apparatus for protecting a window made of wood, in which at least one glass pane is disposed in a glazing rebate in the window casement and retained by means of a clamping fillet in which the clamping fillet has an anchorage portion for cooperation with a yieldable sealant strand urging against the outside of the glass unit, and a support portion disposed in spaced apart relationship thereto for abutment against the outside of the casement, and in which the casement is provided with a number of anchorage members with retainer surfaces which are designed for cooperation with an anchorage projection disposed on the clamping fillet between the anchorage portion and the support portion, the retainer surfaces and the anchorage projection being of such design and location in relation to one another that the anchorage projection is positionally fixed against movement at right angles to the plane of the glass unit, away from the glass.

2. An apparatus as claimed in claim 1 and in which the clamping fillet is of metal and is manufactued in one piece with two shanks making an obtuse angle with one another, the support portion being disposed for abutment against the edge portion of the casement located most distally from the glass unit, and the anchorage projection being disposed at the region of connection between both shanks of the clamping fillet.

3. An apparatus as claimed in claim 2, in which the anchorage projection is in the form of a strip which is approximately parallel to the glass unit and which extends, on the side of the clamping fillet turned to face the casement, out from the shank of the clamping fillet located most proximal to the glass, and in which the retainer surfaces are arranged to define pockets in the anchorage members in a direction facing away from the glass, the pockets being open to accept the insertion of the anchorage projection in a direction which is parallel to the face plane of the glass.

4. An apparatus for protecting a window made of wood substantially as herein described with reference to and as illustrated in the accompanying drawings.