IE83323B1 - Glazed window assembly - Google Patents

Description

GLAZED WINDOW ASSEMBLY BRIAN C. ALLPORT; SUSAN M. ALLPORT; MARK C. ALLPORT; PHILLIP B. ALLPORT and IIANNAH S. ALLPORT GLAZED WINDOW ASSEMBLY This invention relates to a glazed window assembly and to a bead retaining clip for use in such assembly.

With the advent of fully finished timber windows there has been a need for an installation method that would securely fasten the side and top timber beads to the exterior perimeter of a window without the use of fixings which pierce the prefinished timber coating, since such piercing affects the guarantee that the paint manufacturers give for unpierced surfaces to the joinery manufactures.

Accordingly, the present invention provides a glazed window assembly comprising a window frame, a glazing panel mounted in the window frame, a plurality of bead- retaining clips located along at least one edge of the panel, and a glazing bead extending in common along and retained in position by the clips, each clip including at least one tongue which extends rearwardly between the frame and the edge of the panel for retaining the clip in position relative to the panel, the tongue having a plurality of teeth which are displaced out of the plane of the tongue and which bite into the frame to resist withdrawal of the tongue from between the frame and the edge of the panel, and at least one bead- retaining member which extends forwardly into a recess in the rear surface of the glazing bead, the bead- retaining member being offset upwardly relative to the tongue.

The invention further provides a clip for use in a glazed window assembly of the kind comprising a frame, at least one glazing panel mounted in the frame, at least one glazing bead mounted on the frame adjacent one face of the panel, and a plurality of clips positioned along the frame to retain the glazing bead on the frame, the clip including at least one tongue for extending between the frame and the edge of the panel for retaining the clip in position relative to the panel, the tongue having a plurality of teeth which are displaced out of the plane of the tongue and which bite into the frame to resist withdrawal of the tongue from between the frame and the edge of the panel, and at least one bead retaining member offset from and extending in the opposite direction to the tongue for extending into a recess in the rear of the glazing bead.

In this specification, in respect of any given clip, and irrespective of the actual orientation of the clip in use, the forward direction is deemed to be the direction normal to the glazing panel from the panel to the glazing bead, the upward direction is deemed to be the direction away from the edge of the frame towards the centre of the panel, and the rearward and downward directions are deemed to be the directions opposite to the forward and upward direction respectively.

An embodiment of the invention will now be described, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a transverse cross—section of a glazed window assembly taken through one vertical side edge of a rectangular window frame; Fig. 2 is a perspective View of the clip seen in cross- section in Fig. 1; and Fig. 3 is a top plan view of the clip of Fig. 2, the cross—section of the clip in Fig. 1 being taken on the line I—I of Fig. 3.

For convenience the glazed window assembly, and in particular the clip, will be described with reference to forward, upward, rearward and downward directions, indicated in Fig. 1 by the arrows F, U, R and D respectively.

However, these directions do not limit the orientation of the clip in use.

Referring now to the drawings, a glazed window assembly comprises a rectangular window frame 10 with a glazing panel 12 mounted in the frame. In this embodiment the panel 12 is a sealed double glazing unit with inner and outer glass panes 14, 16 respectively. A plurality of bead retaining clips 18 are located along the edge of the glazing panel 12. Preferably each clip 18 is formed as an integral moulding of a rigid plastics material such as PVC.

Typically the clips are 70mm wide, as measured in the direction along the length of the edge of the panel 12 Fig. 1), (i e. normal to the plane of and are spaced at intervals of 250mm. A pre- finished wooden glazing bead 32 extends fully along the exterior edge of the panel 12 adjacent the frame 10 and is there held in place, in the manner now to be described, in common by the clips 18.

Each clip 18 is generally step-shaped in cross-section and comprises a central strip 20 which in use is orientated substantially parallel to the edge of the panel 12 and has upper and lower substantially parallel edges 22, 24 respectively. A first tongue 26 extends substantially at right angles to the strip 20 from the lower edge 24 thereof rearwardly between the frame 10 and the edge of the panel 12 for retaining the clip in position relative to the panel. A second tongue 28, offset upwardly relative to the first tongue 26, extends substantially at right angles to the strip 20 forwardly from the upper edge 22 thereof to engage in a continuous narrow slot 30 in the rear surface of the glazing bead 32.

To assemble the structure shown in Fig. 1, first each clip 18 is fixed relative to the panel 12 by driving the tongue 26 between the edge of the panel 12 and the frame 10 in the manner of a wedge, the leading edge 34 of the upper surface of the tongue 26 being sloped to facilitate this. The rear surface of the strip 20 facing the panel 12 has a plurality of ribs 36, and the tongue 26 is driven between the edge of the panel 12 and the frame 10 until the ribs 36 come into abutment with the panel 12, the ribs 36 thereby providing a desired spacing between the strip 20 and the panel 12.

The glazing panel 12 is spaced from the rear of the frame 10 by a self adhesive or press fit glazing gasket 36. To resist withdrawal of the tongue 26, the latter is formed with a plurality, in this case two, of reversely directed teeth 38 which are displaced out of the plane of the lower surface 40 of the tongue to bite into the wooden frame 10.

In this embodiment the tongue 26 can be up to 3mm thick. This provides up to a 3mm space between the edge of the panel 12 and the window frame 10, as recommended by the United Kingdom Glass and Glazing Federation. The opposite lateral edges 42 of the upper surface of the tongue 26 are also sloped; this allows to be inserted over these tapered packers (not shown) sloping edges between the tongue 26 and the edge of the panel 12 should the latter be undersized.

Once the clips 18 are fixed in position along the edge of the panel 12, the glazing bead 32 is pushed in common onto the clips such that their tongues 28 enter the slot 30. The bead 32 is pushed fully home until a further glazing gasket 44 on the rear of the bead 32 comes to press against the panel 12. To retain the bead 32 on the clips 18, each tongue 28 has a plurality, in this case five, of reversely directed teeth 46 which are alternately displaced out of the plane of the upper and lower surfaces 48, 50 of the tongue 28 to bite into the opposite sides of the slot . Like the tongue 26, the leading edge of the tongue 28 is sloped to facilitate insertion of the tongue 28 into the slot 30.

Optionally, the clip 18 further has a pair of tabs 52 extending forwardly from the lower edge 24 of the strip , each positioned laterally beyond a respective end of the tongue 28, the tabs extending into a rebate 54 in the bottom surface of the bead 32.

It will be understood that the bead 32 is a single elongate member extending substantially the full length of the relevant edge of the unit 12, and is retained in position in common by all the clips 18 fixed along that edge which engage the bead at spaced locations. It will be seen that the clips 18 do not engage any exterior or exposed surface of the bead 32, and solely hold the bead in place by engagement with the hidden rear surface.

In the embodiment shown the clips 18 are designed for use with a 20mm wide double glazing panel 12 and a bead 32 with a front to rear width of about 18mm. However, the clips 18 may be manufactured with other dimensions to suit other widths of unit 12 and bead 28.

As stated above, the drawing shows a cross—section through one vertical side edge of the window frame, but the same construction may also be used along the other vertical side edge and along the horizontal top edge.

The construction is preferably not used along the bottom edge of the window frame as a timber bead is normally unsuitable — in that case it is preferred to use, for example, an aluminium section.

The invention is not limited to the embodiments described herein which may be modified or varied without departing from the scope of the invention.

Claims (12)

1. A glazed window assembly comprising a window frame, a glazing panel mounted in the window frame, a plurality of bead—retaining clips located along at least one edge of the panel, and a glazing bead extending in common along and retained in position by the clips, each clip including at least one tongue which extends rearwardly between the frame and the edge of the panel for retaining the clip in position relative to the panel, the tongue having a plurality of teeth which are displaced out of the plane of the tongue and which bite into the frame to resist withdrawal of the tongue from between the frame and the edge of the panel, and at least one bead—retaining member which extends forwardly into a recess in the rear surface of the glazing bead, the bead—retaining member being offset upwardly relative to the tongue.

2. A glazed window assembly as claimed in claim 1, wherein each clip is an integral moulding of rigid plastics material.

3. A glazed window assembly as claimed in claim 1 or 2, wherein the leading edge of the upper surface of the tongue is sloped for wedge-like insertion of the tongue between the frame and the edge of the panel.

4. A glazed window assembly as claimed in claim 3, wherein the tongue has two opposite lateral edges and the upper surface of the tongue is also sloped along said lateral edges.

5. A glazed window assembly as claimed in any preceding claim, wherein the recess in the rear of the bead is a narrow slot and the bead retaining member comprises a further tongue inserted in the slot.

6. A glazed window assembly as claimed in claim 5, wherein the further tongue has a plurality of teeth which are displaced out of the plane of the further tongue such as to bite into the opposite sides of the slot to resist withdrawal of the glazing bead from the clip.

7. A glazed window assembly as claimed in any preceding claim, wherein the first and further tongues are integrally joined by a strip of material which is generally parallel to the glazing panel and which has upper and lower substantially parallel edges, the first tongue extending rearwardly from the lower edge of the strip and the further tongue extending forwardly from the upper edge of the strip, so that the clip has a generally step—shaped cross-section.

8. A glazed window assembly as claimed in claim 7, wherein the strip has a plurality of ribs on its rear surface for spacing the strip from the panel.

9. A glazed window assembly as claimed in claim 7 or 8, further including a pair of tabs extending forwardly from the lower edge of the strip, each positioned laterally beyond a respective end of the further tongue, the tabs extending into a rebate in the bottom surface of the bead.

10. A clip for use in a glazed window assembly of the kind comprising a frame, at least one glazing panel mounted in the frame, at least one glazing bead mounted on the frame adjacent one face of the panel, and a plurality of clips positioned along the frame to retain the glazing bead on the frame, the clip including at least one tongue for extending between the frame and the edge of the panel for retaining the clip in position relative to the panel, the tongue having a plurality of teeth which are displaced out of the plane of the tongue and which bite into the frame to resist withdrawal of the tongue from between the frame and the edge of the panel, and at least one bead retaining member offset from and extending in the opposite direction to the tongue for extending into a recess in the rear of the glazing bead.

11. A glazed window assembly substantially as described with reference to the accompanying drawings.

12. A clip for use in a glazed window assembly substantially as described with reference to the accompanying drawings. F. R. KELLY & CO.,