ZA200908794B

ZA200908794B - Multiple point cantilever bracket

Info

Publication number: ZA200908794B
Application number: ZA200908794A
Authority: ZA
Inventors: Klaas Pouwels; Wet Ben De; Jan Johannes Moes
Original assignee: Waco Africa Pty Ltd
Priority date: 2008-12-19
Filing date: 2009-12-10
Publication date: 2010-08-25
Also published as: AP2009005076A0; AP2680A

Description

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Lo MULTIPLE POINT CANTILEVER BRACKET

FIELD OF THE INVENTION

This invention relates to a multiple point cantilever bracket for providing overhanging support points off a slab edge.

BACKGROUND OF THE INVENTION

Cantilever brackets are often used in the assembling of support work for casting slabs during the construction of a multi-leveled building. Typical cantilever brackets comprise a pair of connectors for connecting the cantilever bracket to a standard, and a tube spaced apart from the pair of connectors via suitable supporting and strengthening braces. The spaced apart tube can then receive a jack for supporting a beam extension, for example.

However, these typical cantilever brackets are rigidly designed, and although they are produced in a variety of lengths, the lengths being defined as the distance between the pair of connectors and the spaced apart tube, they inherently cannot be used in situations in which a variety of lengths between the pair of connectors and the spaced apart tube is required.

OBJECT OF THE INVENTION

It is therefore an object of the present invention to address the above shortcoming by providing a multiple point cantilever bracket.

SUMMARY OF THE INVENTION

According to the invention there is provided a multiple point cantilever bracket comprising: a plurality of connectors for connecting the cantilever bracket to a standard; a first end tube spaced apart from the plurality of connectors; a movable tube that can be moved between the plurality of connectors and the first end tube so as to define a plurality of connection points; and a supporting arrangement for fixing the first end tube relative to the plurality of connectors and for accommodating the movable tube.

In an example embodiment, the bracket includes a second end tube proximate the plurality of connectors and spaced a predetermined distance apart from the first end tube.

In an example embodiment, the plurality of connection points is defined by the first end tube, the movable tube proximate the first end tube, the movable tube substantially midway between the first and second end tubes, and the second end tube.

In an example embodiment, the tops of the first end tube, the movable tube and the second end tube are at the same height to receive superjacent components.

In an example embodiment, the supporting arrangement comprises a lower support element extending between the bottom of the first end tube and the bottom of the second end tube.

In an example embodiment, the supporting arrangement further comprises an intermediate brace member extending approximately midway between the first end tube and the second end tube.

In an example embodiment, the supporting arrangement further comprises an : upper support carriage extending between the top of the first end tube and the top of the second end tube. in an example embodiment, the upper support carriage comprises a pair of spaced apart arms for slidingly accommodating the movable tube, the movable tube comprising a square plate that can be supported on the spaced apart arms of the upper support carriage.

In an example embodiment, at least one of the connectors comprises a hook for enabling the connector to be fitted to the standard.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 shows a plurality of views of a multiple point cantilever bracket according to an example embodiment of the present invention;

Figure 2 shows a side view of the cantilever bracket fitted to a standard and supporting an overhead support beam, in a first configuration;

Figure 3 shows a side view of the cantilever bracket fitted to a standard and supporting an overhead support beam, in a second configuration;

Figure 4 shows a side view of the cantilever bracket fitted to a standard and supporting an overhead support beam, in a third configuration,

Figure 5 shows a top view of a plurality of the cantilever brackets located in position around a corner of a slab, highlighting the difference between the first, second and third configurations; and

Figures 6 and 7 show a series of steps during the construction of a multi- leveled building in which the cantilever bracket shown in

Figure 1 may be used.

DESCRIPTION OF PREFERRED EMBODIMENTS

Referring to Figures 1 to 4, a multiple point cantilever bracket 10 comprises three connectors 12, 13 and 14, for connecting and supporting the cantilever bracket 10 to a standard 16. The multiple point cantilever bracket 10 further comprises a first end tube 18 spaced apart from the connectors 12 and 13, with a movable tube 20 being provided that can be moved between a vertical edge defined by the connectors 12, 13 and 14, and the first end tube 18. The movable tube 20 provides versatility in terms of providing required overhanging support points off a slab edge, as will become clearer further on in the specification. Finally, the multiple point cantilever bracket 10 comprises a supporting arrangement 22 for fixing the first end tube 18 relative to the connectors 12, 13 and 14.

In an example embodiment, the bracket 10 includes a second end tube 24 proximate the connectors 12, 13 and 14, and spaced a predetermined distance apart from the first end tube 18.

In an example embodiment, the tops of the first end tube 18, the movable tube and the second end tube 24 are at the same height.

In an example embodiment, the supporting arrangement 22 comprises a lower support element 26 extending between the bottom of the first end tube 18 and the bottom of the second end tube 24.

In an example embodiment, the supporting arrangement 22 further comprises an intermediate brace member 28 extending approximately midway between the first end tube 18 and the second end tube 24.

In an example embodiment, the supporting arrangement 22 further comprises an upper support carriage 30 extending between the top of the first end tube 18 and the top of the second end tube 24. The upper support carriage 30 may comprise a pair of spaced apart arms 32, 34 for slidingly accommodating the movable tube 20, the movable tube 20 comprising a pair of square plates 36, 38 that can be supported on the spaced apart arms 32, 34 of the upper support carriage 30.

In an example embodiment, the top two connectors 12 and 13 comprise hooks 40 and 42 for enabling the connectors 12 and 13 to be fitted to the standard 16. These hooks 40 and 42 typically engage standard pressings 46 formed on the standard 16 in a well known manner. In addition, pressings 45 may be provided to enable ledgers, such as ledgers 80 in Figures 2 to 7, to be fitted to the cantilever bracket 10.

Referring specifically to Figures 2 to 7, three configurations of the cantilever bracket 10 will now be described. It is clear from these figures that the . cantilever bracket 10 provides 4 connection points indicated by arrows 47, 48, 50 and 52. These 4 connection points in turn provide 3 different connection configurations as follows: - As shown in Figures 2 and 5, when the movable tube 20 is positioned proximate the first end tube 18, corresponding to arrow 48, dropheads 54 may be fitted to the movable tube 20 and the standard 16 to carry support beams 56. This configuration is indicated in Figures 5 to 7 by arrows 58, 60 and 62. - As shown in Figures 3 and 5, dropheads 54 may also be fitted to the first end tube 18, corresponding to arrow 47, and the second end tube "24, corresponding to arrow 52, to carry support beams 56 that in turn support panels 64. This configuration is indicated in Figures 4 to 6 by arrows 66 and 68. - As shown in Figures 4 and 5, for a corner cantilever bracket 10.1, the movable tube 20 can be positioned in an intermediate position, corresponding to arrow 50, to allow dropheads 54 to be fitted to the movable tube 20 and the standard 16, to carry support beams 56. This configuration is indicated in Figures 5 to 7 by arrow 70. As best shown in Figures 5 to 8, since the corner cantilever bracket 10.1 is offset relative to the cantilever brackets indicated by arrow 66 and 68, because of the presence of the corner column 72, by placing the movable tube 20 in the intermediate position, the alignment of the support beams 56 is maintained.

In use, and with specific reference to Figures 6 and 7, once slab 82 has been cast, an outrigger beam 84 for providing an off-the-slab support point, which may be of the type disclosed in applicant's co-pending patent application entitled “Outrigger Beam for Providing an off-the-slab Support Point” is then positioned adjacent the corner column 72. The outrigger beam 84 comprises a jack 86 for supporting a corner standard 16.1, the jack 86 resting upon an underlying support structure. The remaining standards 16 and ledgers 80 may be erected in a well known manner. The cantilever brackets 10.2, 10.3 and 10.4 may then be fitted to the relevant standards, with their movable tubes 20 being positioned proximate the first end tube 18, so as to define configurations 58, 60 and 62. As described above with particular reference to Figure 2, this then allows support beams 56 to be carried, which in turn, can support panels 64 spanning across the support beams 56.

The cantilever brackets 10.5 and 10.6 may then be fitted to the relevant standards so as to define configurations 66 and 68. As described above with particular reference to Figure 3, this then allows support beams 56 to be carried across the first end tubes 18 and the second end tubes 24 of these cantilever brackets 10.5 and 10.6. These support beams 56 may in turn carry support panels 64. This configuration is indicated in Figures 4 to 6 by arrows 66 and 68.

Finally, corner cantilever bracket 10.1 may then be fitted to the corner standard 16.1, as described above with particular reference to Figure 4. The movable tube 20 of this bracket 10.1 can be positioned in an intermediate position so as to define configuration 70. As described above, this configuration ensures that the support beam extending across this cantilever bracket 10.1 and adjacent cantilever bracket 10.5 is aligned with the support beam extending across cantilever bracket 10.5 and adjacent cantilever bracket 10.6, despite the fact that cantilever bracket 10.1 is offset relative to cantilever brackets 10.5 and 10.6.

The present invention thus provides a multiple point cantilever bracket for providing versatile overhanging support points off a slab edge.

Claims

cL CLAIMS

1. A multiple point cantilever bracket comprising: a plurality of connectors for connecting the cantilever bracket to a standard; a first end tube spaced apart from the plurality of connectors; a movable tube that can be moved between the plurality of connectors and the first end tube so as to define a plurality of connection points; and a supporting arrangement for fixing the first end tube relative to the plurality of connectors and for accommodating the movable tube.

2. The multiple point cantilever bracket of claim 1, wherein the bracket includes a second end tube proximate the plurality of connectors and spaced a predetermined distance apart from the first end tube.

3. The multiple point cantilever bracket of claim 2, wherein the plurality of connection points is defined by the first end tube, the movable tube proximate the first end tube, the movable tube substantially midway between the first and second end tubes, and the second end tube.

4. The multiple point cantilever bracket of either claim 2 or claim 3, wherein the tops of the first end tube, the movable tube and the second end tube are at the same height to receive superjacent components.

: 5. The multiple point cantilever bracket of any one of claims 2 to 4, wherein the supporting arrangement comprises a lower support element extending between the bottom of the first end tube and the bottom of the second end tube.

6. The multiple point cantilever bracket of any one of claims 2 to 5, wherein the supporting arrangement further comprises an intermediate brace member extending approximately midway between the first end tube and the second end tube.

7. The multiple point cantilever bracket of any one of claims 2 to 6, wherein the supporting arrangement further comprises an upper support carriage extending between the top of the first end tube and the top of the second end tube.

8. The multiple point cantilever bracket of claim 7, wherein the upper support carriage comprises a pair of spaced apart arms for slidingly accommodating the movable tube, the movable tube comprising a square plate that can be supported on the spaced apart arms of the upper support carriage.

9. The multiple point cantilever bracket of any one of the preceding claims, wherein at least one of the connectors comprises a hook for enabling the connector to be fitted to the standard. DATED THIS 10™ DAY OF DECEMBER 2009 ( 4 GILFILLAN INC. FOR THE APPLICANT