Bracket

The present invention concerns an improved bracket/angle bracket that is especially suited for mounting in edge areas of connected wood or metal beans. The bracket/angle bracket according to the invention is comprised of two flat sections running mainly perpendicularly to each other, whereof the one section comprises or may be added devices for securing it to a substrate of one half of a cornet (e.g. the one part may be added glue or some other securing device or substance or may include at least one hole or aperture for securing to the substrate with a' screw, bolt or nail), and the other flat section comprises at least one groove or take-out being provided at least partly or optionally completely across the flat section and running parallel with the flat section.

Background for the invention.

When mounting parts in e.g. buildings including a corner, there may be used angled brackets/angle irons for keeping the corner parts together. In some cases it may, however, be difficult to fasten the angle bracket with conventional securing devices (e.g. screws or nails) being placed perpendicularly to each flat corner section by using holes being present in both bracket sections. As an example this is the case when mounting window frames in window cases, where it is easy to manipulate the screw hole in the angle iron in one flat section of the bracket, but when the mounting it is impossible or at least extremely difficult to manipulate the fastening hole being located in the second flat section of the bracket because this side of the assembly will be blocked by the window case.

This problem has conventionally been solved, when using wood, by the end corner pieces being secured to each other by a nailed hammered in askew. This solution is, however, unfortunate because the effect is that the end piece of the corner develops cracks or splits apart.

Consequently there is a need for a bracket/corner bracket that makes it possible to place/secure the corner bracket without having to access vertical securing elements on the one corner iron plate.

General disclosure of the invention.

The object of the invention will be better understood when referring to the enclosed figures wherein:

Fig. 1 shows an embodiment of the bracket according to the invention mounted in a corner of a window frame placed inside a window case.

Fig. 2 shows an alternative embodiment of the bracket according to the invention.

In Fig. 1 there is shown a window frame 1 comprising two frame sections 2,3 being held together by an angle bracket 4. Outside the one section of the window frame 1 there runs the continued window frame 5 preventing vertical access to the one flat section 6 of the bracket 4. The second flat section 7 of the bracket 4 is equipped with conventional securing devices such as holes 8 for screws or bolts. The angle bracket 4 is first secured to the one part 2 of the window frame 1. In the one flat part 6 of the angle bracket there exists at least one groove or track 9 running parallel with the one flat part of the angle bracket. Thereby it may be added screws for securing the angle bracket 4 to the window frame 1 with one screw being placed in the groove or track 9. The groove or track has a size so that the screw stem may run mainly feely through the hole being formed by the groove/track, but the screw threads will completely or partly cut their own thread tracks into the substrate and/or the bracket material.

It is preferred that the grooves/tracks 9 running parallel to the bracket plate initially do not comprise threads so that screws/bolts with any thread angle may cut their own tracks into the substrate/bracket material, but the grooves/tracks 9 may alternatively be equipped with threads internally or comprise skew openings for harboring the relevant threads.

When mounting a bracket/angle iron according to the invention in one embodiment of the bracket according to the invention, the bracket may first be secured by securing devices (e.g. screw/bolts) running perpendicularly to the bracket surface 7 into the securing holes 8 so that the sections 2,3 forming the relevant corner are held tightly onto one another with mainly or completely aligned corner surfaces. The bracket is first screwed onto the substrate in the

angle/corner where the one end 7 of the angle iron will be hidden by e.g. a wall, brace, casing, etc. The mounting may optionally be done in the sides, top or bottom of the casing. The casing is then placed on the relevant location (e.g. frame) and is crewed securely in front by using the parallel running grooves/tracks 9 in the angle iron/angle bracket 4. To avoid that the corner piece is displaced relatively to each other, one or alternatively several screws are then mounted in the groove(s)/track(s) 9 for secure fastening of the angle iron 1 to the corner.

Optionally, to brace/secure the stiffness/integrity of the relevant (window frame) corner, there may be placed several angle irons/brackets down along the corner edge. In this case the mounting of the each angle iron/bracket will proceed mainly as described supra, i.e. the angle iron/bracket is first mounted by using the conventional holes 8 and then with the grooves/tracks 9 running parallel with the substrate surface. In this case the screws being secured in the grooves/tracks 9 may be secured a bit askew relative to the substrate surface (ca. 0-10° relative to the surface plane), but the access to the screw heads will still be substantially improved in comparison to conventional screws running perpendicularly to the substrate surface.

The iron/bracket according to the invention has, if it is mounted in close contact with the relevant corner, a tightening effect after being mounted, and it may also be adjusted in a number of planes after it has been mounted in e.g. a frame. Alternative location choices for the angle iron/bracket according to the invention may be in corners for securing together extensions in windows, doors, etc.

For improving the securing capacity of the angle iron/bracket according to the invention against the substrate surface, the securing may also be done through the aid of an adhesive that may be applied either onto the substrate or onto the internal section(s) of the angle iron or both.

It may be possible to equip the angle iron/bracket according to the invention with bracing organs such as ridges and/or thicker sections 10.

The material of the angle iron/bracket according to the invention is optional, but normally it is preferred to make this of acid resistant steel, zink-alloyed steel, tempered steel, iron,

aluminum etc. It is also possible to make the angle iron/bracket according to the invention of a plastic/synthetic material e.g. cured/hardened plastic. It may also be relevant to provide at least the internal part of the parallel grooves/tracks 9 with a softer material than the rest of the iron/bracket to east the thread cutting from the inserted securing appliance (screw/bolt).