AU4265900A

AU4265900A - Plasterboard bracket

Info

Publication number: AU4265900A
Application number: AU42659/00A
Authority: AU
Inventors: Karel Bracek; Charles Bradford
Original assignee: ABBOTT CEILINGS Pty Ltd
Current assignee: ABBOTT CEILINGS Pty Ltd
Priority date: 2000-06-23
Filing date: 2000-06-23
Publication date: 2002-01-03

Description

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PLASTERBOARD CORNER STRIP This invention relates to plasterboard corner strips. Such strips are employed at the joint of two sections of plasterboard and typically where the plasterboard makes an angle such as at a corner or where a wall meets the ceiling. Thus the corner strips themselves are usually angle strips having one surface at an angle to another. The strip surfaces generally include a plurality of through holes that facilitate the adherence of plaster applied over the corner strip for the purpose of concealing the .60:0, 1 strip.

The present invention resides in a plasterboard corner strip including an adhesive layer applied to at least one surface thereof and a removable backing layer on said adhesive layer.

15 Preferably the adhesive layer is perforated to allow plaster applied to the comer strip to pass substantially through the adhesive layer.

0000 SThe invention also resides in a method of applying a plasterboard corner strip to a .plasterboard, said strip including at least one surface with an adhesive layer thereon and a removable backing layer on said adhesive layer, said method including the steps of removing said backing layer from said adhesive layer to expose said adhesive and pressing said exposed adhesive to said plasterboard.

The invention will now be described by way of example only with reference to preferred embodiments and to the accompanying drawings in which:- Figure 1 is a perspective view of a corner strip; Figure 2 is an end view of a corner strip; Figure 3 is a perspective view of a corner strip being applied to a plasterboard joint.

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2 Shown generally at 10 in Fig. 1 is a plasterboard comer strip which is an angle strip having two inner surfaces 11, 12 and two outer surfaces 13, 14. On one inner surface 11 is an adhesive layer 15 with a removable backing layer 16.

The adhesive layer 15 may be a double sided adhesive tape having a backing layer such as Steratape 1201 (TM) or may be applied as a coating to the strip surface 11 during the manufacture of the strip, with a layer of backing tape being removably applied to the coating.

The strip illustrated has a plurality of through holes 18 in each of its surfaces. These holes allow plaster applied on one side of the strip to pass through the strip, which gives additional bonding strength to the plaster and prevents the plaster from flaking at the corner strip. To facilitate this bonding, the adhesive layer 15 is perforated with holes large enough to allow pasty plaster to pass through them. If the adhesive layer has been applied as a coating to a perforated strip surface, the layer will naturally form with holes in it. If the adhesive layer has been applied by other means such as a nonperforated tape, the adhesive layer may be perforated by pressing the strip with a stamp designed to penetrate the tape at points covering the apertures of the strip.

Alternatively the adhesive may be applied to the strip surface prior to the holes being stamped into the strip and the strip bent into shape so that the holes are formed in the .strip surface 11 and the adhesive layer 15 concurrently.

Fig. 3 shows a strip 10 in the process of being applied to a join of a plasterboard formed from two plasterboard sections 31 and 32. As a first step the backing layer 16 has been removed to expose the underlying adhesive layer 15. The strip 10 is then pressed to one surface of the plasterboard 31 to hold it in place. The second surface 32 may then be properly aligned before being fixed to the strip 10 by conventional means.

In the embodiments above described, the adhesive layer is applied to one surface of the strip 10 only. It is possible that adhesive can be applied to all surfaces that are to be fixed to the plasterboard 30. However, if more than one surface of the strip has an adhesive layer then there can be difficulties in correctly aligning the plasterboard joint if the second surface to be fixed to the strip prematurely contacts the adhesive on the second surface of the strip.

The invention has been described with reference to the illustrated 900 angle strip applied to the external surfaces of a plasterboard joint. The invention is equally applicable to other types of corner strips, including but not necessarily limited to strips for internal corners, archways, ceiling joints, shadow lines and strips of various angles. For strips applied on the inside of a plasterboard joint, the adhesive layer is applied to one or more of the outer surfaces 13, 14 of the strip 10. The bracket may be made for example of steel, stainless steel, any suitable alloy or plastic.

While particular embodiments of this invention have been described, it will be evident S.i to those skilled in the art that the present invention may be embodied in other specific forms without departing from the essential characteristics thereof. The present embodiments and examples are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A plasterboard corner strip including an adhesive layer applied to at least one surface thereof and a removable backing layer on said adhesive layer.

2. A plasterboard comer strip according to claim 1 wherein said adhesive layer is applied to said at least one strip surface as a coating.

3. A plasterboard corner strip according to claim 1 wherein said adhesive layer is a 10 double sided adhesive tape. eo°°

4. A plasterboard corner strip according to claims 1, 2 or 3 wherein said adhesive layer is perforated such that plaster can pass substantially through said adhesive layer. A plasterboard corner strip according to claim 4 wherein said adhesive layer is perforated by pressing said strip with a stamp. 0 000* A plasterboard corner strip according to any preceding claim wherein said strip 20 includes an adhesive layer and removable backing on two surfaces of said strip. 0 0.

7. A plasterboard corner strip according to any one of claims 1 to 5 wherein said adhesive layer is applied to only one surface of said strip.

8. A method of applying a plasterboard corner strip to a plasterboard, said strip including at least one surface with an adhesive layer thereon and a removable backing layer on said adhesive layer, said method including the steps of removing said backing layer from said adhesive layer to expose said adhesive and pressing said exposed adhesive to said plasterboard.

9. A plasterboard corer strip substantially as hereinbefore described with reference to the accompanying figures. A method of applying a plasterboard corer strip to a plasterboard substantially as hereinbefore described with reference to the accompanying figures. DATED this 23rd day of June 2000 ABBOTT CEILINGS PTY. LIMITED By their Patent Attorneys HALFORD CO. *o* o*