DK180194B1

DK180194B1 - A support tool and a method for temporary stabilisation of a wall and the use of said support tool

Info

Publication number: DK180194B1
Application number: DKPA201870620A
Authority: DK
Inventors: Friis Baun Dennis; Nilsen Anders
Original assignee: Baun og Nilsen Holding IVS
Priority date: 2018-09-21
Filing date: 2018-09-21
Publication date: 2020-08-04
Also published as: DK201870620A9; DK201870620A1

Abstract

An object of the invention is achieved by a support tool for temporary stabilisation of a load-bearing wall. The support tool may comprise a top bar with a wall-facing end. The wall-facing end will, when the support tool is inserted into the load-bearing wall, face the load-bearing wall. The support tool may comprise a distance bar extending perpendicularly from the wall-facing end. The distance bar will, when the support tool is inserted into the load-bearing wall, interact with the load-bearing wall. The distance bar may extend and be connected to a bottom bar. The distance bar may thereby define a crossbar height. The bottom bar may comprise a rest facing the top bar and a pike extending beyond and perpendicular to the distance bar. The stabilising is adapted for receiving a crossbar between the rest and the top bar, where the crossbar will rest on the rest. The crossbar will have height similar to the crossbar height defined by the distance bar. There may be inserted a wedge between the crossbar and the rest and/or the top bar for further securing the crossbar.

Description

DK 180194 B1 1 A support tool and a method for temporary stabilisation of a wall and the use of said support tool Field of the Invention The present invention relates to a support tool capable of temporary stabilisation of a load-bearing wall and a method for stabilisation of a load-bearing wall. Background of the Invention A load-bearing wall must be sufficiently stabilised when making a hole in the load- bearing wall. The hole could be for a door.

Currently, the act of stabilising a load-bearing wall is a two man job as the support equipment is heavy and the equipment comprises many different parts. See fig. 1 for an example of the present prior art.

Thus, there is a need for a method and equipment which can be performed and used by a single person, thereby lowering the overall cost and time consumed.

Furthermore, the existing support equipment is invasive to the load-bearing wall, be- cause with the equipment it is necessary to make several through-going apertures in the load-bearing wall which must then be patched after the hole in the wall is made. This increases costs and it is more time consuming.

Thus, there is a need for a less invasive method and less invasive equipment.

AU6752981 describes a cleat for supporting brickwork in a wall while an opening is made in the wall. The cleat comprises a top bar with a wall-facing end for facing a wall when in use, a distance bar extending perpendicularly from the wall-facing end to a bottom bar, thereby defining a crossbar height, the bottom bar comprises a rest fac- ing the top bar.

DK 180194 B1 2 Object of the Invention It is an object of the invention to provide a tool and a method for temporary stabilisa- tion of a wall that can be performed by a single person. Description of the Invention An object of the invention is achieved by a support tool for temporary stabilisation of a load-bearing wall. The support tool may comprise a top bar with a wall-facing end for facing a wall when in use. The wall-facing end will, when part of the support tool is inserted into the load-bearing wall, face the load-bearing wall.

The support tool may comprise a distance bar extending perpendicularly from the wall-facing end. The distance bar will, when part of the support tool is inserted into the load-bearing wall, interact with the load-bearing wall.

The distance bar may extend and be connected to a bottom bar. The distance bar may thereby define a crossbar height.

The bottom bar may comprise a rest facing the top bar. The rest is adapted for the placement of a crossbar.

The support tool may further comprise a pike extending perpendicularly from the dis- tance bar in an opposite direction to the bottom bar. The pike is adapted for being in- serted into a wall.

The support tool is adapted for receiving a crossbar between the rest and the top bar, where the crossbar will rest on the rest. The crossbar will have a height similar to the crossbar height, defined by the distance bar. There may be a wedge inserted between the crossbar and the rest and/or the top bar in order to further secure the crossbar.

The pike is to be inserted into the wall. The act of inserting the pike may be by force, i.e. by hammering on the rest of the bottom bar. The act of inserting may include an act of pre-drilling a bore for the pike.

DK 180194 B1 3 The pike will typically be inserted into the mortar of the wall as the mortar can be repaired easier than a brick.

The bottom bar and the distance bar may be arranged perpendicular to each other as this will give the best connection between the support tool and the load-bearing wall.

The entire support tool can be held in one hand as the support tool will typically not weigh more than 1-3 kg.

At least three support tools are to be used for the temporary stabilisation of a load- bearing wall. The pikes of the at least three support tools are inserted into the load- bearing wall, such that the rests are aligned at the same height and the top bars are aligned at the same height.

The two outer support tools of the at least three support tools will define support end points.

The crossbar may then be positioned on the rests. The crossbar may be further secured by one or more wedges or by cramps or by any other securing means.

The load-bearing wall will afterwards be temporarily secured and part of the wall may be removed.

The support tools have different purposes depending on the position of the support tools relative to the hole to be made in the load-bearing wall. There need to be at least two outer support tools which are positioned above and on either side of the hole to be made. There need to be at least one inner support tool positioned above the hole to be made. When the support tools are equipped with a crossbar and the wall is removed below the crossbar, then the force distribution will be distributed as follows: The part of the wall above the hole will distribute a force onto the pike(s) of the inner support tool(s). The force is distributed along the distance bar(s) to the top bar(s). The top bar(s) will distribute the force down onto the crossbar. The crossbar distributes the force to rests of the outer support tools on either side of the hole, and the force is dis-

DK 180194 B1 4 tributed through the pikes of the support tools back to the load-bearing wall and thus, the load-bearing wall is temporarily stabilised. Thus, the purpose of the outer support tools is to distribute a force from the crossbar to the load-bearing wall and the purpose of the inner support tools is to distribute the force from the wall above the hole to the crossbar. As explained above, the support tool of the present invention is able to fulfil both pur- poses and this simplifies the process of stabilising the load-bearing wall.

The support tool may hold a point load between 4-7 kN. More support tools are used if the load is larger than the support tool point load. In some cases support tools are positioned on both sides of the load-bearing wall to further increase the overall load-caring ability. The above-mentioned work is all doable by a single person because the support tool is small and easy to handle. The crossbar may be made of carbon fibre, wood or metal, such as steel or aluminium.

Furthermore, the stabilisation of the wall is not very invasive compared to the prior art described earlier, because only a part of the mortar of the wall is removed by the in- sertion of the pike. The crossbar may also be liftable by a single person. This will often be the case when the hole to be made in the load-bearing wall is for a door. The bottom bar may distal to the distance bar comprise an anvil for hammering the support to into the wall.

The top bar may distal to the wall-facing end comprise a downwardly extending lip for restraining a crossbar, thereby preventing any lateral torsional buckling.

DK 180194 B1 In an aspect of the invention, the pike may be pointed. This will make the insertion of the pike into the load-bearing wall easier.

In an embodiment, the pike may be blunt as the user may pre-drill a bore and therefore 5 the amount of material the pike must displace will be limited.

In an aspect of the invention, the top bar may comprise a cramp extending through a part of the top bar, such that the crossbar height is variable.

The cramp may comprise a swivel shoe for engaging with the crossbar, a threaded rod extending through the top part to a head. The head may easily be engaged by a user and the turning of the head will move the swivel shoe up or down.

In an embodiment, the rest may comprise a cramp extending through a part of the rest, such that the crossbar height is variable.

In an embodiment, the top bar and the rest may each comprise a cramp extending through a part of the top bar and the rest, such that the crossbar height is variable. Each cramp may comprise a swivel shoe for engaging with the crossbar, a threaded rod extending through the top part to a head. The head may easily be engaged by a user, and the turning of the head will move the swivel shoe up or down.

In an aspect of the invention, the support tool is made of a metal.

The support tool may be made of steel, which is a strong material The support tool may be made of aluminium, which is lightweight and easy to handle. The support tool is made of carbon fibre, which is a light-weight and strong material.

DK 180194 B1 6 In an aspect of the invention, the pike may be directly opposite to the bottom bar. This makes it easier to insert the pike into a wall, because the bottom bar can be used as an anvil for hammering, Furthermore, this positioning gives a better force distribution and an improved con- nection with a wall. An object of the invention is achieved by a method for temporary stabilisation of a load-bearing wall. The method may comprise one or more acts of: - providing support tools; - inserting the pikes into a wall face; - positioning a crossbar between the rest and the top part of the support tools.

As an example: The pikes of at least three support tools are inserted into the load-bearing wall, such that the rests are aligned at the same height and the top bars are aligned at the same height.

The crossbar may then be positioned on the rests. The crossbar may be further secured by one or more wedges or by cramps or by any other securing means. The load-bearing wall will afterwards be temporarily secured and part of the wall may afterwards be removed below the inner support tool(s).

An object of the invention is achieved by use of a support tool for temporary stabilisa- tion of a load-bearing wall. Description of the Drawing Embodiments of the invention will be described in the figures, whereon: Fig. 1 illustrates a prior art tool for stabilisation of a load-bearing wall; Fig.2 illustrates a schematic of a stabilisation tool for temporary stabilisation of a load-bearing wall;

DK 180194 B1 7 Fig. 3 illustrates a detailed support tool for temporary stabilisation of a load-bearing wall; Fig. 4 illustrates four support tools positioned on a load-bearing wall before part of the wall is removed; Fig. 5 illustrates a method for temporary stabilisation of a load-bearing wall.

Detailed Description of the Invention ewe [w Cow Fig. 1 illustrates a prior art tool for stabilisation of a load-bearing wall 80. The prior art tool uses several parts and a flange going through the upper and lower parts of the load-bearing wall 80. This is an invasive technique and it is time consum- ing because two persons are needed in order to manoeuvre the prior art tool into place.

DK 180194 B1 8 Fig. 2 illustrates a schematic of a support tool 10 for temporary stabilisation of a load-bearing wall 80 (not shown). Fig. 2A and 2B discloses side views which are turned 90 degrees relative to each other. The support tool 10 comprises a top bar 20 with a wall facing end 22, which will face the load-bearing wall 80, when the support tool 10 is intended use. The support tool 10 comprises a distance bar 30 extending perpendicularly from the wall-facing end 22 to a bottom bar 40. The distance bar 30 and the bottom bar 40 are arranged perpendicular to each other. The length of the distance bar 30 defines a crossbar height 12. The bottom bar 40 has a rest 42, where a crossbar 90 (not shown) is to be positioned.

The bottom bar 40 has opposite to the 42 and extending beyond the distance bar 30 a pike 44 for insertion into a wall face 82(not shown) of the load-bearing wall 80(not shown). Fig. 3 illustrates a detailed support tool 10 for temporary stabilisation of a load- bearing wall 80 (not shown). Fig. 3A and 3B discloses a side view and a top view of the support tool 10. The support tool 10 comprises a top bar 20 with a wall-facing end 22, which will face the load-bearing wall 80 when the support tool 10 is used. The support tool 10 comprises a distance bar 30 extending perpendicularly from the wall-facing end 22 to a bottom bar 40. The distance bar 30 and the bottom bar 40 are arranged perpendicularly to each other.

Opposite to the wall-facing end 22, the top bar 20 has a downwards extending lip for further restraining the crossbar, thereby preventing lateral torsional buckling.

DK 180194 B1 9 The length of the distance bar 30 does not define a crossbar height 12, because the support tool 10 further comprises a cramp 50 on the top bar 20 and the bottom bar 40. The cramp comprises a swivel shoe and a threaded rod extending from the swivel shoe through the top bar 20 or the bottom bar 40 to a head which is rotatable such that the swivel shoe may be moved vertically. This makes the cross bar height adjustable. The bottom bar 40 has a rest 42, where a crossbar 90 (not shown) is to be positioned. Opposite to the rest 42 and extending beyond the distance bar 30, the bottom bar 40 has a pike 44 for insertion into a wall face 82 (not shown) of the load-bearing wall 80 (not shown). The rest 42 has an extent which is larger than the top bar 20.

The rest 42 has a downwards extending lip forming an anvil for hammering the sup- port tool into a wall face. Fig. 4 illustrates four support tools 10A, 10B, 10C, 10D positioned in a load- bearing wall 80 before a part of the wall is removed. The inner support tools 10B, 10C are positioned above the hole to be made, because these inner support tools 10B, 10C will distribute the weight, from the wall above the hole to be made, to a crossbar 90.

The outer support tools 10A, 10D are positioned at a lateral distance to the hole to be made, because these outer support tools 10A, 10D are to distribute the force from the crossbar 90 to the load-bearing wall 80. The pikes 44 (not shown) are all inserted into the wall face 82 at the same height, such that the rests 42 are positioned at a first common height and the top bars 20 are posi- tioned at a second common height.

DK 180194 B1 10 The crossbar 90 is positioned between the top bars 20 and the rests 42 of the bottom bars 40. The crossbar 90 may be further secured by wedges or cramps.

Fig. 5 illustrates a method 100 for temporary stabilisation of a load-bearing wall 80. The method comprises one or more acts of: - providing 200 support tools 10; - inserting 300 the pikes 44 into a wall face 82; and - positioning 400 a crossbar 90 between the rest 42 and the top part 44 of the support tools 10.

Claims

1 DK 180194 B1 Patent claim

A support tool (10) configured to temporarily stabilize a load-bearing wall (80), the support tool (10) comprising a top link (20) having a wall-facing end (22) for facing a wall (80) when in use , a spacer bar (30) extending perpendicularly from the wall-facing end (22) to a bottom bar (40), thereby defining a crossbar height (12), the bottom bar (40) comprising a support (42) facing the top bar (20), characterized in that the support tool (10) further comprises a spear (44) extending perpendicularly from the spacer rod (30) in an opposite direction to the bottom rod (40).

The support tool (10) of claim 1, wherein the spear (44) is pointed.

The support tool (10) according to claim 1 or 2, wherein the top bar (20) and / or the support (42) comprises a vice (50) extending through a portion of the top bar (20) and / or the support (42). , so that the crossbar height is variable.

The support tool (10) according to one or more of claims 1-3, wherein the support tool is made of a metal.

The support tool (10) according to one or more of claims 1-4, wherein the spear (44) is directly opposite to the bottom bar (40).

A method (100) for temporarily stabilizing a load-bearing wall (80) comprising one or more actions: - providing (200) the support tool (10) according to one or more of claims 1-5; inserting (300) spears (44) into a wall surface (82); and - positioning (400) a crossbar (90) between the support (42) and the upper part (44) of the support tool (10).

Use of a support tool (10) according to one or more of claims 1-5 for temporarily stabilizing a load-bearing wall (80).