GB2452291A

GB2452291A - Window frame

Info

Publication number: GB2452291A
Application number: GB0716827A
Authority: GB
Inventors: Anthony Wilson
Original assignee: DESIGN FACADES Ltd
Current assignee: DESIGN FACADES Ltd
Priority date: 2007-08-29
Filing date: 2007-08-29
Publication date: 2009-03-04
Also published as: GB0716827D0

Abstract

A door or window comprises an outer frame section 4 and an inner frame section 6. The inner and outer frame sections are provided with complimentary retaining formations 16 18 which engage on relative transverse movement of the sections permitting the inner frame 6 to be mounted on a prefabricated outer frame 4. The retaining formation on the inner frame 6 may be a returned lip 16 and the formation on the outer frame a complimentary shaped channel 18. Further the wall of the channel 20 may be inserted into slot 22 of the returned lip and may be provided with tooth formations 24 to secure the two frames together. A second retaining system may also be used in the form of a locking strip or clip 30 with sidewalls 32 34 provided with teeth formations. These teeth engage with channels on the inner and outer frames securing them together. A bead may be mounted to the outer frame member.

Description

Composite Windows and Doors This invention relates to windows and doors having a low maintenance extruded outer frame fabricated from aluminium alloy or pvcu and an inner cladding facing 6 the interior of a room providing a visually attractive and insulating frame suitably moulded from natural timber.

This invention consists in a window or door having outer frame sections and inner frame sections, the 12 inner section having a first edge portion and an opposed second edge portion, the first edge portion being arranged to overlie and secure an adjacent marginal edge portion of a panel such as a glazing panel within a rebate, complimentary retaining formations being provided on an inner and on an 18 adjacent outer section which are inter-engageable upon relative transverse movement of the inner and outer sections. * ** * S * * S.

It will be understood that the term relative * S transverse movement' refers to a motion which is at *::::.24 right angles to the longitudinal axes of the frame sections. As will be described in further detail, this arrangement permits the outer preferably extruded aluminium frame of the window or door to be fabricated * .: and glazed and subsequently for an inner, preferably timber frame to be mounted to the interior side of the outer frame, to secure the glazing within a glazing rebate, to complete the assembly of. the door or window unit. Advantageously, the construction facilitates any necessary subsequent re-glazing of the window or door from the interior side of the building.

In the case of doors, solid panels rather than glazed 36 panels may be required and any reference herein to panels is to be understood to mean glazed panels or to glazing and vice versa, unless the context otherwise requires.

The complimentary retaining formations are suitably 42 disposed along a first edge portion of the inner section and along the adjacent edge portion of the outer section respectively.

Preferably the retaining formation provided on the inner member is in the form of a returned lip which is 48 disposed to inter-engage with a complimentarily shaped formation provided along the adjacent edge portion of the outer section.

The inner frame sections may be decorative timber mouldings which serve to provide a continuous cladding 54 of thermally insulating material over the surface of * *, the outer frame. A benefit of the invention is that adequate thermal insulation may be provided without the

introduction of additional thermal insulating

*::::* components such as synthetic thermal break components. * ***** * *

The said first edge portion of the inner frame section **.* arranged to overlie and secure the adjacent marginal edge of a glazing panel. within a glazing rebate is preferably adapted to retain a glazing gasket such as a wedge gasket, for urged sealing engagement with the adjacent marginal edge portion of a glazing panel.

Additional retaining means may be provided at a location spaced apart from the complimentary retaining formations preferably along the opposed second edge to further secure the inner and outer sections together.

72 More preferably, the additional retaining means are in the form of a channel-shaped locking strips adapted to be inserted into receiving formations located along adjacent distal end portions of the inner and outer sections.

78 Preferably, the outer frame sections of the window or door and of the fixed frame, respectively, are adapted to provide an inwardly or an outwardly opening window or door by having means for the optional mounting of a bead member to an outer frame section to convert a window or door adapted to open inwardly into one 84 adapted to open outwardly or vice versa.

Glazed windows or doors and associated fixed frames having side jambs, head and ciii members, transoms and the like may be provided in which the outer frame sections are of extruded aluminium alloy and the inner frame sections are of timber. The outer extruded frame is normally constructed and arranged to withstand the ** expected wind loads to which the window or door may be exposed in use and may be pre-fabricated by normal methods, including the use of corner cleats in the case S...

of the fabrication of an alloy outer frame and the use .:96 of internal steel reinforbing bars and the welding of mitred pvcU joints in the case of a pvcU frames. The inner frame components of doors and windows may provide relatively limited structural support.

The invention may be applied to inwardly and outwardly 102 opening windows and doors, to tilt and turn windows and to double doors having meeting stiles as well as to fixed lights and to other applications.

Glazed opening windows and doors may be mounted in a fixed window or door frame likewise provided with 108 respective outer and inner frame sections.

Advantageously, to reduce the number of extruded sections required the outer frame sections are configurable for either inward or alternatively for outward opening as desired.

114 In order that the invention may be more readily understood embodiments will now be described with reference to the accompanying drawings in which:-Figures 1 and 2 illustrate a first embodiment in which Figure 1 is a horizontal cross section of an inwardly opening door shown only in part and associated jamb; and Figure 2 is a vertical section in the direction 11- 11 shown in Figure 1. * S. * S S * S.

Figures 3 and 4 illustrates a second embodiment in *5*5 which Figure 3 is a horizontal section similar to 426 Figure 1 except that the door is configured and arranged to open outwardly with respect to the jamb; and Figure 4 is a vertical section in the direction IV-S...

:,: IV of Figure 3 Figures 5(i) to 5(iv) are horizontal sections of the 132 door stile section shown in Figures 1 and 3 illustrating.sequential steps in the assembly of the inner and outer sections of inwardly and outwardly opening door stile sections.

Figure 6 (i) is an isometric view of part of a 138 fabricated door ready to receive inner frame sections partial isometric view of which is shown in Figure 6(11) Figures 7, 8 and 9 illustrate the sequential assembly of the inner frame sections to the fabricated outer 144 frame illustrated in Figure 6 (1).

Referring to the drawings, Figure 1 shows an inwardly opening glazed door 2 having an extruded aluminium alloy outer frame section 4 and a moulded timber inner frame section 6 the inner section formed with a first longitudinal edge portion 8 and an opposed longitudinal second edge portion 10. The first marginal edge portion 8 of the timber section is arranged to overlie the adjacent marginal edge of a glazing panel 12 located in a glazing rebate 14. Outer and inner frame sections (4) and (6) are provided with complimentary 156 retaining formations.in the form of a returned lip 16 * ** which is engaged within a complimentarily shaped channel 18 formed along the adjacent distal edge of the outer alloy frame section 4. The wall 20 of channel 18 is inserted into slot 22 defining the returned lip 16 *S..

and is provided with tooth formations 24 to help 162 provide a secure engagement with the timber section. ****

S ***

*..: The sequential steps illustrating a method of inter-engaging the inner and outer sections of the door stile is illustrated with reference to Figures 5(1)- 5((iv). Figure 5(1) shows the outer and Inner frame 168 elements 4 and 6 respectively in space relationship with the glazing panel (12) located within a glazing rebate formed by the pre-fabricated outer aluminium alloy frame, not shown.

Inner frame element 6 is moved transversely that is, at 174 right angles to the longitudinal axis of the outer frame 4, until the two frame elements inter-engage as shown in Figure 5(u). A resilient wedge gasket 26 is inserted into a seal gap between the lip 16 and the marginal edge portion of glazing panel 12 for urged sealing engagement with the glazing panel. The returned lip 16 is provided with a slot 28 (Figure 5(i)) to facilitate the location and retention of the wedge gasket in situ.

Figures 5(i)-(iv) further illustrate second retaining means for securing the inner and outer sections 186 together. A locking strip in the form of an extruded channel section 30 having opposed sidewalls 32, 34 each formed with resilient teeth formations is provided to lock the sections together along the edge remote from fixing means disposed adjacent to the glazing rebate. * **

Following the inter-engagement of the outer and inner * I 192 sections as described above the sidewalls 32 and 34 of the locking strip 30 are urged into complimentary grooves 36, 38 provided in the distal ends of the outer and inner sections 4 and 6 respectively to securely S...

::: : lock the sections together as illustrated in Figure * *. (iv).

The procedure for assembly of the complete door is more generally illustrated in Figures 6-9 Prefabricated outer aluminium alloy sections are partly illustrated in Figure 6. Figure 6(i) illustrates 204 opposed jamb sections 40, 42 and bottom rail section 44 ready to receive corresponding timber inner frame sections 40(a), 42(a) and 44(a) respectively, shown in Figure.6(u). The outer section of the ciii member 46 and its associated inner ciii section are more clearly illustrated in Figure 2. Figure 7 illustrates the 210 locking into place of the inner jamb sections 40(a) and 42(a) to the corresponding outer jamb sections in the manner described in connection with Figure 5 above.

This is followed by location and locking into place of the door bottom inner section or rail 44(a) to the outer section 44 as illustrated in Figures 7, 8 and 9.

216 Assembly of the top horizontal rail section proceeds in the same way and is not shown. The end result is a door as illustrated partially in Figure 9. It may be noted from Figures 7,8 and 9 that the lower timber rail 44(a) together with the corresponding upper rail, not shown, securely lock the upright members 40(a) and 222 42(a) in position preventing de-glazing except from the inside and this providing enhanced security. * **

Referring to Figure 1 and 3 which illustrate inwardly ***. * I

and outwardly opening doors, respectively, the fixed frame, in each case incorporates outer and inner jamb IS..

sections 50 and 50(a) (Figure 1) in the case of the inwardly opening door; and outer and inner jamb *1IS : sections 52 and 52(a) (Figure 3) in the case of the ** inwardly opening door, as well as similar head and ciii sections, which need not be particularly described.

Referring to Figures 1 and 2 it may be noted in particular that the outer stile section 4 is an integral extrusion which has a plurality of means at the distal edge of the door, including the sealing edge of the opening stile, for sealing contact with 240 cooperating means provided on the meeting edge of the fixed frame section, including sealing contact with the illustrated jamb section of the fixed frame. It will be appreciated both door stiles and the top and bottom rails are adapted to seal against the fixed surrounding frame in the same or in a similar way. In particular, 246 a locking strip in the form 40 in Figure 1 carries a seal member 42 extending along the outer edge of the locking strip for sealing engagement with projection 44 provided on outer jamb section 50. The outer jamb section 50 is also adapted to retain seal 46 for engagement with leg 50 on meeting stile section 4 when 252 the door is in the closed position. Finally, the outer stile section 4 is provided with a leg 52 for abutment with the leg 54 of outer element 50 of the jamb, the arrangement being such that that the door may open inwardly with respect to the jamb.

258 The identical outer section 4 is also used in the outwardly opening door arrangement illustrated in * .** * I Figure 3 and 4. I. Ii * S *1*S

However, in order that the stile of the outwardly *1SS.S opening door may sealingly engage with the fixed outer section of the door jamb the outer stile section is adapted to be re-configured by clip formations 50, 52 which are adapted to retain a bead member 54 carrying sealing gasket 56 for sealing engagement with the meeting edge portion 56(a) of stile section 52. The adaptability of the door stile section in this way for 270 inward or outward opening precludes the need for different stile sections and reduces production costs.

The locking strip 58 illustrated in Figures 3 and 4 securely locks the edge of the timber moulding into urged engagement with the aluminium profile resisting 276 natural distortion or warping of the timber in use.

The locking strip 58 is further adapted to carry a seal for sealing engagement against the abutting edge of the inner jamb section 52(a).

Other modifications will be apparent to the skilled 282 addressee in order to apply this invention to various applications which have not been particularly described. For example, a stile profile suitable for use in the construction of a tilt and turn window may be similar in design to the stile described herein with reference to a glazed door but with dimensions 288 appropriately changed. The dimensions and shape of locking strips or other locking means as herein described may vary according to the application in which they are required. The orientation of any required seal carrying means provided on the locking * . strip or other means will likewise depend upon the * S. configuration of the door or window system in which they are required. The form of bead required to adapt S...

* an extruded section for inward opening or alternatively S.....

* for outward opening of a window or door and the form of clip means required tO retain the bead to a section may also be variable in form and operation.

Claims

Claims 1. A window or door having outer frame sections and inner frame sections, the inner section having a first edge portion and an opposed second edge portion, the first edge portion being arranged to overlie and secure an adjacent marginal edge portion of a glazing or other panel within a glazing rebate, complimentary retaining formations being provided Qfl the inner and adjacent outer sections which are inter-engageable upon relative transverse movement of the inner and outer sections.
2. A window or door as claimed in Claim 1 in which the complimentary retaining formation is disposed along the first edge portion of the inner section and along the adjacent distal edge of the outer section respectively. * *S
3. A window or door as claimed in Claim 2 in which the 1**** retaining formation provided on the inner section is *.** in the form of a returned lip disposed and arranged **** to inter-engage with a complimentarily shaped ***.** * formation provided along the adjacent distal edge portion of the outer section. ** * * ** * **
4. A window or door as claimed in claim 1-3 in which the inner frame section is a decorative timber moulding.
5. A window or door as claimed in Claim 1-4 in which the first edge portion of the inner frame section is adapted to carry a glazing gasket for urged sealing engagement with the adjacent marginal edge portion of a glazing panel.
6. A glazed window or door as claimed in Claims 1-5 in which second retaining means are provided at a location spaced apart from.the complimentary retaining formations *to further secure the inner and outer sections together.
7. A window or door as claimed in Claim 6 in which the second retaining means is in the form of a channel-shaped locking strip adapted to be inserted into receiving formations provided along adjacent distal ends of the inner and outer sections
8. A window or door as claimed in claim 7 in which a glazed window or door unit according to any preceding claim is mountable in a fixed frame provided with respective outer and inner frame sections for inward or outward opening. * ** ** S * **

*
9. A window or door as claimed in claim 8 in which the outer frame sections of the window or door and of the fixed frame respectively are adapted to be 5.5555 * configured to provide an inwardly or an outwardly *: opening window or door by having means for the 5*..

optional mounting of a bead member to an outer frame section.
10. A window or door as claimed in any preceding claim in which the outer frame sections are of extruded aluminium alloy.