GB2365055A

GB2365055A - Frame for a leaf

Info

Publication number: GB2365055A
Application number: GB0112731A
Authority: GB
Inventors: Neil Mccluskey
Original assignee: Portakabin Ltd
Current assignee: Portakabin Ltd
Priority date: 2000-05-25
Filing date: 2001-05-25
Publication date: 2002-02-13
Also published as: GB0112731D0; GB0012604D0

Abstract

A frame for a leaf, the frame comprising a frame element including a first frame part and a second frame part each having an outer end surface, said first part and said second part being securable together in a desired position wherein the distance between said outer end surfaces may be varied.

Description

<Desc/Clms Page number 1> Frame for a Leaf Description of Invention A leaf, such as a pivoted or sliding door or window is supported in a frame and hitherto the frame has been made as a unique item for a wall of a particular thickness or, alternatively, the frame is of a given thickness and is adapted to be secured to a support means such as a wall of a desired thickness with a shoulder on at least one side of the frame.

An object of the invention is to provide a new and improved frame for a leaf.

According to one aspect of the invention we provide a frame for a leaf comprising a frame element including a first part and a second part each having an outer end surface and said frame parts being securable together in a position whereby the distance between said outer end surfaces may be varied.

Mechanical fastener means may be provided to secure the frame to a support means.

The mechanical fastener means may be concealed from view when the frame is secured to the support means.

The first frame part may have a front portion which overlaps a rear portion of the second frame part.

A first fastener may extend through the front portion of the first frame part and may extend through said overlapping front portion and rear portion. Said first fastener may be disposed in a recess in the front portion of the first part.

A second fastener may extend through said first frame part but not said second frame part.

The second fastener may be provided in a recess of the first frame part. Said recess containing the second fastener may also contain an intumescent strip which may conceal the second fastener.

A third fastener may extend through said second frame part but not said first frame part.

Each frame part may have a front surface part which lie in a common front surface and may have a rear surface part which lie in a rear common surface.

The outer end surfaces may be mutually parallel and may extend at right angles to the front and rear surface parts.

At least one of said common surfaces may be planar.

The frame may be provided with a rebate element adapted to provide an abutment for said leaf and said abutment element being adapted to overlie the inner end surfaces of the front portions of said first and second frame parts.

The rebate element may cover said first fasteners and said third fasteners when provided.

The front portion of the first part may be terminated by an inner end surface and the rear portion of the second part may be terminated by an inner end surface.

The inner end surfaces may be mutually parallel and may extend at right angles to the front and rear surface parts.

According to another aspect of the invention we provide a wall having an opening provided therein, said opening being provided with a frame according to the first aspect of the invention and wherein said outer end surfaces of the frame are of the same spacing as the thickness of the wall.

An architrave element or elements may be provided to extend between one or each of said outer end surfaces and the adjacent side of the wall.

The or each fastener may be adapted to be engaged with the wall so as to secure the frame thereto.

The or each architrave may be secured to the frame by fastening means such as an adhesive and/or a mechanical fastener such as a pin or a screw.

The invention will now be described in more detail, by way of example with reference to the accompanying drawings wherein:- Figure 1 is a perspective view of wall provided with a frame and a pivoted leaf embodying the invention, Figure 2 is a section on the line 2-2 of Figure 1, Figure 3 is a section similar to that of Figure 2 but showing an alternative frame, Figure 4 is a cross-section similar to that of Figure 2 but showing a further alternative frame, and Figure 5 is a section similar to that of Figure 2 showing but showing a further alternative frame.

Referring now to Figure 1, a support means such as a wall is indicated generally at 10 and is provided with an opening 11 which is provided with a frame 12 for a leaf. In this example the leaf comprises a door 13 which is pivotally connected by hinges 14 to an element 15 of the frame 12.

If desired the leaf may comprise any other desired element such as a pivoted window or a sliding door or window.

Besides the frame element 15 the frame 12 also comprises a second jamb 16 and a horizontally extending top element 17. The jambs 15 and 16 and the top element 17 are a11 of the same basic configuration and hence for convenience the doorjamb 16 will be described in more detail.

Referring now particularly to Figure 2 the door jamb 16 comprises a first frame part 18 and a second frame part 19 each of which has an outer end surface 18a, 19a respectively.

In addition the first frame part 18 has a front portion 20 whilst the second frame part 19 has a front portion 21. Similarly the first frame part 18 has a rear portion 22 whilst the second frame part has a rear portion 23. The

first frame part 18 is provided with a rebate 24 whilst the second frame part 19 is provided with a rebate 25.

As a result the front portion 20 of the first frame part 18 has a reduced thickness portion 26 whilst the rear portion 23 of the second frame part 19 has a reduced thickness portion 27. The reduced thickness front portion 26 overlaps the reduced thickness rear portion 27 as shown in Figure 2.

The front portion 20 of the first part 18 terminates in a first front inner end surface 20a, and the front portion 21 of the second frame part 19 terminates in a second front inner end surface 21a. Similarly, the rear portion terminates in a first rear inner end surface 22a and the rear portion 23 terminates in a second rear inner end surface 23a.

The first frame part 18 has a front surface part 20b provided on the front portion 20, while the second frame part 19 has a front surface part 21b provided on the front portion 21. Similarly, the first frame part 18 has a rear surface part 22b provided by the rear portion 22 and the second frame part 19 has a rear surface part 23b provided on the rear portion 23.

At least the first front inner end surface 20a and second rear inner end surface 23a, and preferably a11 the inner end surfaces 20a, 21a, 22a, 23a, are mutually generally parallel and extend generally at right angles to the front and rear surface parts 20b, 21b, 22b, 23b.

The width of the portions 26, 27 are arranged in relation to the overall width of the frame so that when the first and second frame parts 18, 19 are moved as close together as possible, i.e. so that at least one of the front inner end surfaces 20a, 21a, and the rear inner end surfaces 22a, 23a abut, the outer end surfaces 18a and 19a thereof are coplanar with surfaces 28, 29 of the wall 10 when the wall is of a desired thickness, in this example 99 mm. The front surface parts 20b, 21b, preferably lie in a common front surface, and the rear surface parts 22b, 23b, preferably lie in a common rear surface, as seen in the figures. At least one and preferably both of the common surfaces are planar.

A recess 30 is provided in the front portion 20 of the first frame part 18 in the form .of a rectangular section groove and is adapted to receive a plurality of first fasteners 31 spaced apart longitudinally of the frame part at a desired spacing, which in the present example are wood screws such as No. 10 x 70 mm. In addition the groove 30 is adapted to receive a rib part 32 of a rebate element 33 which, except for the rib 32, is of right parallopiped configuration except for a groove 34 provided in an abutment surface 37 thereof adapted to receive a tongue part of a conventional schegel seal made of cellular plastic. The rebate element 33 is disposed to overlie the inner end surfaces 20a, 21 a, of the front portions 20, 21 and conceals the junction between the front frame part 18 and second frame part 19.

The rebate portion 33 is secured in position by any suitable means such as PVA adhesive and/or a mechanical fastener or fasteners such as a pin(s) or screw(s). The surface 37 provides an abutment surface against which, in the present example, the door 13 abuts the schegel seal providing sound and thermal sealing therebetween.

Architrave elements 38 are provided to bridge the gap between the end of the wall 10 and the frame element 16. The architrave elements 38 are secured to the frame by any suitable means such as by an adhesive and/or pins or other fasteners.

In the present example the door assembly is not fire resistant.

The door assemblies shown in Figures 3, 4 and 5 have a fire resistance of 60 minutes In these figures the same reference numerals have been used for corresponding parts as are used in Figure 2.

Referring now to Figure 3. In this example the door frame and wall are of the same dimensions as that illustrated with reference to Figure 2, except that the leaf is thicker. In the present example, the first frame part 18 is provided with a rectangular groove 50 in which a plurality of second fasteners 51, spaced

apart longitudinally of the frame part at a desired spacing, are engaged in counterbored apertures at the base thereof to facilitate securing of the first frame part 18 to the wall 10. A suitable intumescent strip 52 is provided in the groove 50. In other respects the frame and wall are as described in connection with Figure 2.

If it is desired to adapt the frame 12 described with reference to Figure 3 for use with a wall 60 of greater thickness than the wall 10 described in connection with Figures 1 to 3, for example a wall 112 mm thick, then the first and second parts of the frame 18, 19 are moved relative to each other to the position shown in Figure 4 where the outer end surfaces 18a, 18b are coplanar with the surfaces 61, 62 of the wall 60. In addition, a plurality of third fasteners 63 are received in each of a plurality of counterbored holes 64 formed in the reduced thickness part 27 of the rear portion of the second frame element 19 to facilitate connection of the second frame element to the wall 60. The fasteners 63 are spaced apart longitudinally of the frame part at a desired spacing.

Referring now to Figure 5 when it is desired to associate the frame with a wall of still greater thickness such as the wall 70 shown in Figure 5 which has, in the present example, a thickness of 125mm the first and second frame parts 18, 19 are moved further relative to each other so that the outer end surfaces thereof are coplanar with the surfaces 71, 72 of the wall 70. In this case the second fastener 31 extends only through the front portion 20 of the first frame part 18 and a separate fastener indicated at 63 extends through an opening 73 of the rear portion 23 of the second frame element 19.

In the embodiments shown in Figures 3, 4 and 5 the rebate element shown at 33 in Figure 2 is of slightly greater width in the embodiment shown in Figure 3 and is of the same width as shown in Figure 3 and the embodiment shown in Figure 4. In the embodiment shown in Figure 5 the rebate element is of greater width than in Figures 3 and 4. The width of the rebate element is

chosen so as to provide adequate coverage of the gap between the first and second frame parts whilst at the same time providing adequate fire resistance.

In all embodiments, the fasteners 31, 51, 63 as appropriate are each concealed from view by either the rebate portion, in the case of the fasteners 31, and 63 when provided, or the intumescent strip 52, in the case of the fasteners 51 when provided.

In the present specification "comprise" means "includes or consists of and "comprising" means "including or consisting of'.

The features disclosed in the foregoing description, or the following claims, or the accompanying drawings, expressed in their specific forms or in terms of a means for performing the disclosed function, or a method or process for attaining the disclosed result, as appropriate, may, separately, or in any combination of such features, be utilised for realising the invention in diverse forms thereof.

Claims

CLAIMS 1. A frame for a leaf, the frame comprising a frame element including a first frame part and a second frame part each having an outer end surface, said first part and said second part being securable together in a desired position wherein the distance between said outer end surfaces may be varied.
2. A frame according to claim 1 wherein mechanical fastener means are provided to secure the frame to a support means.
3. A frame according to claim 2 wherein the mechanical fastener means is concealed from view when the frame is secured to the support means.
4. A frame according to any one of the preceding claims wherein the first frame part has a front portion which overlaps a rear portion of the second frame part.
5. A frame according to claim 4 wherein a first fastener extends through the front portion of the first frame part.
6. A frame according to claim 5 wherein the first fastener extends through said overlapping front portion and rear portion.
7. A frame according to claim 5 or claim 6 wherein said first fastener is disposed in a recess in the front portion of the first frame part.
8. A frame according to any one of the preceding claims wherein a second fastener extends through said first frame part but not said second frame part.

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9. A frame according to claim 8 wherein the second fastener is provided in a recess of the first frame part.
10. A frame according to claim 9 wherein said recess containing the second fastener also contains an intumescent strip which conceals the second fastener.
11. A frame according to any one of the preceding claims wherein a third fastener extends through said second frame part but not said first frame part.
12. A frame according to any one of the preceding claims wherein both frame parts have a front surface part which lie in a common front surface.
13. A frame according to any one of the preceding claims wherein both frame parts have a rear surface part which lie in a rear common surface.
14. A frame according to claim 13 where dependant on claim 12 wherein the outer end surfaces are mutually parallel and extend at right angles to the front and rear surface parts.
15. A frame according to claim 12 or claim 13 or claim 14 wherein at least one of said common surfaces is planar.
16. A frame according to any one of the preceding claims wherein the frame is provided with a rebate element adapted to provide an abutment for said leaf and said abutment element is adapted to overlie the inner end surfaces of the front portions of said first and second frame parts.

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17. A frame according to claim 16 where dependant directly or indirectly on claim 5 or claim 11 wherein the rebate element covers at least one of said first fastener and/or said third fastener.
18. A frame according to claim 4 or any one of claims 5 to 16 where dependant directly or indirectly on claim 4 wherein the front portion of the first part is terminated by an inner end surface and the rear portion of the second part is terminated by an inner end surface.
19. A frame according to claim 18 where dependant directly or indirectly on claim 13 where dependant on claim 12 wherein the inner end surfaces are mutually parallel and extend at right angles to the front and rear surface parts.
20. A frame substantially as described herein and/or with reference to the accompanying drawings.
21. A wall having an opening provided therein, said opening being provided with a frame according to any one of claims 1 to 20 and wherein said outer end surfaces of the frame are of the same spacing as the thickness of the wall.
22. A wall according to claim 21 wherein an architrave element or elements is provided to extend between one or each of said outer end surfaces and the adjacent side of the wall.
23. A wall according to claim 21 or claim 22 wherein the or each fastener is adapted to be engaged with the wall so as to secure the frame thereto.

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24. A wall according to claim 20 wherein the or each architrave is secured to the frame by fastening means such as an adhesive and/or a mechanical fastener such as a pin or a screw.
25. A wall substantially as described herein and/or with reference to the t accompanying drawings.
26. Any novel feature or novel combination of features described herein and/or in the accompanying drawings.