AU618561B2

AU618561B2 - Fixing interior doors

Info

Publication number: AU618561B2
Application number: AU24709/88A
Authority: AU
Inventors: Maxwell John Howes
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-09-09
Filing date: 1988-11-04
Publication date: 1992-01-02
Anticipated expiration: 2008-11-04
Also published as: AU2470988A

Description

-ii 61 P56 4' 4.

,rr 4044 4400 44 4 04 0r o 4; 4 4 4 4)~ APPLICANT: MAXWELL JOHN HOW1S

NITMBEIR:

FILING DATE: Form 0 COMMONWEALTH OF AUSTRALIA The Patents Act 1952 COMPLETE SPEC IFICATION FOR AN INVENTION ENTITLED: FIXING 5VTFA-T--&P 'boOPS The following statement is a full description of this invention, iru'luding the best method of performing it known to me/us:

-I-

1A

;A"

-2- This invention relates to the fixing of an interior door to a pre-cut door jamb assembly.

At present, when a door jamb is fitted into the wall of a timber-framed building, packing must be inserted between the frame and the jamb to ensure that the jamb is correctly aligned. As individual frame timbers are often not straight, this packing can be a time-consuming operation.

It is the principal object of the present invention to provide a method of securely and expeditiously fixing an interior door in a building.

'This invention provides a method of fixing an interior door to a pre-cut '.rti door jamb assembly, which assembly is attachable to an interior door framework and which assembly comprises: S. a head jamb element; and two side jamb elements, a complementary U-shaped channel means, in which two upright flanges are connected by a web, being attached to each jamb element, wherein the mmethod comprises: positioning the head jamb element with respect to the top of the door framework so that the flanges of the channel means overlap the edges of the door framework; repeating step with respect to the side jamb elements and the sides of the door framework; straightening or levelling the respective jamb elements to enable the door to be hung within the jamb assembly; attaching the jamb elements to the door framework; and hanging the door within the jamb assembly.

Preferably, the channel means terminate short of the corners of the component. This facilitates the later addition of other components, for example the addition of architraves to door jambs.

4r u^ Howes/5/Nov88

I;

-2A- In the case of door jambs, it is desirable that a gap be provided in the channel means in the central region of-the vertical sides of the jamb, in order that latches, electrical wiring or other necessary additions may be made without difficulty.

In order that the invention may be more readily understood reference will be made to the accompanying drawings in which; Figure 1 is a front elevation of the jamb of the invention; q 4 9411 ,Ittff 1~5 i-I Howes/5/Nov88 ii :1 Figure 2 is an end elevation of the iamb; Figure 3 is a section along line 3-3 of Figure 1; Figure 4 is a view similar to Figure 1 but showing an arrangement adapted to receive architraves; Figure 5 is an enlarged view of part of the side of the iamb of Figure 4; Figure 6 is a rear view of an architrave member; and Figure 7 is a side view of the member of Figure 6.

o o SReferring firstly to Figures 1 to 3 the jamb 10 c n be considered to be conventional and would normally be located within the door frame, shown 00 in generally as 11 which, in anormal timber house would be of 90 mm 01) 0 mm framing.

0 0 o Coventionally the jamb would be located, more or less as illustrated in 11S"" F r -gure -Fuigure 1 and then packing material would be located between the iamb 000 and the framing.

The arrangement of the invention differs from that previously proposed in "leaI)S that there are channel- mebers- 15 connected to the sides and top of the iamb, the connection preferably being by nails or screws 19 if the iamb is wood. The width of the web 16 of the flange is preferably equivalent to the width of the framing members, in this case 90 mm and the length of the webs 16 can be, for example, qOfirmtm The width of the web 16 is dependent upon the framing used and, for metal framing would normally be 75 mm and the height of the flanges 17 is a preferment but must be sufficiently great to extend beyond the frame 3 H a Howes/68/Nov88 i I IC~. 111~ 1~ members when the jamb is positioned but sufficiently small to enable the jamb to be located.

I may provide apertures 18 in flanges to receive fixing means as will be tescribed d4escibedhereinafter.

As illustrated I have shown on each side of the iamb two separate channel eveone is but this again a preferment and I could equally well use a single channel or could use a greater number of channels.

In use the jamb is located in position by moving the jamh at an angle to iv e-o l ns S, ;permit the top channel member 15 to pass bereath the upper cross member of the frame 11 with the jamb offset to one side a distance sufficient to meaOns I permit the channel member cn one side to pass the vertical frame -ebe.--r and then the jamb assembly is moved bodily in this direction until the ivianS channel member cn the other side can pass the other vertical frame member and then the jamb is positioned centrally of the door aperture.

ovelie At this stage the apertures 18 through the flanges of the channels over lie the frame members and the iamb can be located in position by passing flat headed nails or screws through the apertures 18 into the associated frame member.

It will be seen then that it is not necessary to adopt the time consuming practice of packing between the jamb and the frame as has previously been the case, it is only necessary to physically locate the jamb in position relative to the frame and then interconnect the flanges of the channels to the frame members.

In Figures 4 to 7 I illustrate an architrave which can be connected to the W r Howes/68/Nov88 -1 jamb of the invention without the necessity of nails or the like so the architrave can readily be prepared in a factory and located in position on site without the necessity of later carrying out work on the architrave.

In this arrangement not only do the flanges 17 have apertures 18 to receive the nails or screws but they are also provided with keyhole cut outs which have a head 21 which is effectively a circular hole and a tail 22 which exterds downwardly.

The architrave can consist of two side members 30 and a tnp member 31 S' and each of these has headed members 32 which have a head sufficient to be received in the head 21 of the keyhole member and a shaft diameter sufficient to be received in the tail 22.

These architraves are cut to size and the side architrave members have a mitred cut, preferably at 45 degrees with the lower side being adapted to be inwardly directed and at the comer of the lamb.

The cross member has each end cut to the same angle and in practice after the jamb has been located and the nails or screws passed through the apertures 18 then it is only necessary to bring the side architrave members into a alignment with the heads of the members 32 being adapted In enter /reans the holes 21 in the key hole cut outs in the channel members, pass the heads therethrough and then move the architrave members downwardly until their lower ends touch the ground, at which time the members 32 have reached the bottom of the tails 22.

The cross member is then placed in position in the same way and when it has reached the bottom of its movement this is when it comes into a 610& S ,'IT abutting alignment with the two side architrave members.

Howes/68/Nov88 i Because the actual locations of the channel members, and the apertures therein are determined at a factory the finish of the arrangement is fully determined at that time and there can be no error on site.

Also, as mentioned previously, because the architraves do not have to be connected to the door jambs or the frame by rails or the like there is no necessity for finishing after the architraves have been located, the product is already finished.

SIt can therefore be seen that the concept of the invention provides a simple j I; cheap and efficient way of locating door jambs, or other aperture surrounds in position and, at the same, permits recen ncticn of an architrave or the like thereto, the architrave presenting a finished aspect when the connection is completed.

Whilst I have described specific arrangements of the invention it is to be understood that these can vary widely depending upon the materials of construction being used and provided they have the basic concept of the invention incorporated therein any such variations are deemed to be within the scope of the invention.

V Conveniently, in one practical example of a method according to the V, present invention, a door jamb was fixed into position in a timber house frame composed of conventional 90mm x 45mm framing. The channel was made from metal in lengths of 900mm, and had a flat bottom 90mm wide, with sides of a convenient height, e.g. 30 mm, exterding upwardly at right angles. Holes to receive fasterers, such as nails or screws, were formedat appropriate locations in the sides and the bottom.

S Howes/68/Nov88 i .1

Claims

1. A method of fixing an interior door to a pre-cut door jamb assembly, which assembly is attachable to an interior door framwork and which assembly comprises: a head jamb element; and oo:: two side jamb elements, a o a complementary U-shaped channel means, in which two upright flanges are connected by a web, being attached to each jamb element, wherein the method comprises: oaoaaa positioning the head jamb element with respect to the top of the t door framework so that the flanges of the channel means overlap .the edges of the door framework; repeating step with respect to the side jamb elements and the sides of the door framework; straightening or levelling the respective jamb elements to enable the door to be hung within the jamb assembly; attaching the jamb elements to the door framework; and hanging the door within the jamb assembly. Howes/5/Nov88 ft I -8-

2. The method of claim 1 which further comprises step: attaching architraves to the jamb elements and door framework.

3. The method of claim 1 substantially as described with reference to the accompanying drawings.

4. The method of claim 2 substantially as described with reference to the accompanying drawings. ,to I Sr 0 0 t DATED this I C t-I- day of October, 1991 MAXWELL JOHN HOWES By His Patent Attorneys A. TATLOCK ASSOCIATES lvzd Howes/5 /Nov88 I