AU781745B2

AU781745B2 - A joint

Info

Publication number: AU781745B2
Application number: AU89228/01A
Authority: AU
Inventors: Vincent Robert Hunt
Original assignee: BUILDING ESSENTIAL SERVICES PT
Current assignee: BUILDING ESSENTIAL SERVICES Pty Ltd
Priority date: 2000-11-15
Filing date: 2001-11-07
Publication date: 2005-06-09
Anticipated expiration: 2021-11-07
Also published as: AU8922801A

Description

Our Ref:7658030 P/00/011 Regulation 3:2

AUSTRALIA

Patents Act 1990

ORIGINAL

COMPLETE SPECIFICATION STANDARD PATENT Applicant(s): Address for Service: Invention Title: Building Essential Services Pty Ltd 39 Amber Drive Lennox Head New South Wales 2478 Australia DAVIES COLLISON CAVE Patent Trade Mark Attorneys Level 10, 10 Barrack Street SYDNEY NSW 2000 A joint The following statement is a full description of this invention, including the best method of performing it known to me:- P.\WPDDCS\ARS\PECI7659030 AU _me.dm.ld. IV0410 -1- A JOINT The present invention relates to joints for slab structures formed from concrete or like materials. The joint is particularly suitable for providing a barrier against termites entering a building structure between floor or wall slabs.

According to the present invention there is provided a joint for use between two slab structures of settable material, the joint including a base which includes first and second mounting sections, a barrier wall mountable to the base at said first mounting section so as to extend from a major side surface thereof the barrier wall including a keying section the joint further including at least one stabilising member which is mountable to the base at said second mounting section and which is mountable to the barrier wall at a position spaced from the base.

9 9 o Preferably, when assembled, the barrier wall extends from the base at generally right angles. In use, the base is preferably positioned at a predetermined location on the i' ground or suitable support and secured in position by suitable securement means. Once the joint is positioned, concrete can be poured to one side of the barrier wall covering a portion of the base to adjacent the edge of the barrier wall remote from the base. Concrete •••can then be poured on the opposite side of the barrier wall in a similar fashion and allowed o: to set so that two adjoining slabs can be produced with the joint therebetween. Preferably, thejoint extends substantially the length of the two slabs being produced.

25 Preferably, the base includes an elongated body having spaced apart side end portions which are preferably parallel to one another. The barrier wall is mountable to the base so as to extend from the major side surface thereof intermediate the side edge portions. Preferably, the barrier wall is mounted to the base so as disposed generally at right angles thereof. Thus the barrier wall separates the base into two sections disposed on opposite sides of the barrier wall. In one form, the two sections of the base may be interconnected by a flexible coupling section to provide some flexibility to the base.

P\wPwDOCSDYSkso\joitwu pc.6 Smw% 2001 -2- The barrier wall may include end wall sections which are interconnected by a keying section. The keying section may include two laterally extending flange portions interconnected by a web portion. Preferably, the web portion is generally parallel to the end wall sections and laterally spaced relative thereto.

The base may include mounting means for mounting the barrier wall thereto.

The mounting means may be in the form of a slot in the base which is adapted to receive therein a portion of one of the end wall sections of the barrier wall. The slot may be defined by a pair of spaced apart flanges which project from the major sides surface, the flanges being spaced apart so as to define the slot therebetween.

The or each stabilising member may be in the form of a peg which is operatively connected at one end to the base and mounted to the barrier wall at a position spaced from the base. The peg may include a threaded end portion adapted to cooperate with a threaded fastening secured to or integral with the base.

one form, the threaded fastening may include a nut which is mountable to the :base. To this end the base may include a retaining recess for receiving the nut and limiting movement thereof. In another form, the fastening may include a fastening element having a base section which is receivable within the recess and an internally threaded sleeve section projecting form the recess and which is adapted to co-operate .:oooi with the threaded end portion of the peg. In yet another form, the threaded fastening may include a threaded slot which is adapted to receive and cooperate with a threaded end portion of the peg. In the first mentioned form, the recess has an opening through which the threaded portion of the peg connects to the nut. The recess includes a necked section which inhibits the nut passing out of the opening. In another arrangement the ***end of the peg may simply be a tight fit within the fastening slot rather than having cooperating threaded sections. In yet another form the peg and fastening may include cooperating generally saw-tooth portions which enable the two parts to snap fit together.

In one preferred embodiment two fastenings are provided one on each side of the barrier P AWPoOCS\DYS $pciointU do" No om. 2l -3wall.

The or each peg may be operatively connected to the barrier wall so as to permit relative movement thereto in the direction of the longitudinal axis of the stabilising member. In one preferred form, the stabilising rod or peg is adapted to pass through apertures in the lateral flange portions of the keying section of the barrier wall so that the barrier wall can slide along the stabilising rod or peg. In another arrangement the rod or peg may be adapted to pass through a mounting flange which is secured to or integral with the barrier wall. The flange may be in the form of a plate fixed to the barrier wall.

The base and barrier wall of the joint are preferable formed of an extruded or moulded plastics material such as P.V.C. or the like. It will be appreciated however that the parts could be formed from other materials such as metal and could be formed using other manufacturing techniques such as pressing.

In one form, the base is adapted to rest directly on the ground and may for example, be secured to the ground by pegs or the like. In another form, the base is oo adapted to be supported on a carrier or chair to which it is secured. In yet another arrangement the base may have on its underside two sided tape which can be secured to a support such as a plastics plate or the like.

S•According to another aspect of the present invention there is provided a joint support for supporting the joint described above, the support including a shank portion with a support head portion at one end thereof. The shank portion is adapted to be "i 25 driven into the ground, the head portion has a support surface upon which the base of the joint is carried. The support surface may have thereon adhesive tape which assists in .holding the base in position thereon. The head portion and shank portion may form an integral unit or in another arrangement the head portion may be securable to the shank portion by co-operating threaded sections which enable the head portion to be attached after the shank portion is driven into the ground. This enables the height of the support P. wpDOCS\DYS~pmickjoinipdc.6 Novemba 2001 -4portion to be adjusted.

Preferred embodiments of the invention will be hereinbefore described with reference to the accompanying drawings, and in those drawings: Figure 1 is a schematic perspective view of a joint according to one form of the present invention; Figure 2 is a modified form of the joint shown in Figure 1; Figure 3 is a further modified form of the joint shown in Figure 1; Figure 4 is an end elevation of a further modified form of the base of the joint; Figures 5 to 8 show modified forms of the sides of the base of a joint according to the present invention; Figure 9 is a schematic view of a further embodiment of a joint according to the present invention; Figure 10 is a detail of part of the base of the joint shown in Figure 9; #ooo.i Figure 11 is a schematic view of a mounting element for use in the joint shown in Figure 9 and oo.ooi Figure 12 is a schematic illustration of a chair suitable for supporting the joint' °oo° Figure 13 is a schematic view of a peg which is suitable for holding the joint in position; Figure 14 is a further form of support for the joint of the present invention; P.AWPOCSDYds;coifltscdoc.61 Novmba Figure 15 is a modified form of the support shown in Figure 14; Figure 16 is a modified form of part of the joint; Figures 17 and 18 are schematic views of an end cap for use in the joint; Figures 19 and 20 are schematic views of a coupling element; and Figures 21 and 22 are schematic views of modified forms of the coupling element.

Referring to Figure 1 of the drawings there is shown a joint generally indicated at which comprises a base 12 in the form of a elongated extruded molded body 13 having an upper major surface 14 and generally parallel side edges 15 and 16. Each side edge has an upwardly turned flange 17 and 18 thereon. Formations 21 and 22 in the form of projections are formed on the upper major surface of the elongated body. The joint further includes a barrier wall 40 which is securable to the base 12 and a plurality of stabiliser S" members 50 mounted between the base and the barrier wall.

S 20 The base further includes a barrier wall mounting 24 which includes a pair of upwardly projecting spaced apart parallel flanges 26 and 27 which define a mounting slot therebetween.

A stabiliser fastening 30 projects from the upper major surface of the elongated S 25 body and includes a pair of parallel spaced apart flanges 32 and 33 defining a mounting slot 31 therebetween, the inner surfaces of the flanges 32 and 33 and in the forms shown in Figures 1 to 3 has a thread thereon for reasons which will become apparent.

~The barrier wall 40 includes an upper wall section 41 and a lower wall section 42 with a keying section 43 therebetween. The keying section 43 includes two lateral flanges 44 and 45 which are interconnected with a web 46. The-lower wall section 42 is at least P %WPDOCS DYSareidjointupcd m- Nmemb -6partially receivable within the slot 25 for mounting the barrier wall to the base. The thickness of the lower wall section of the barrier wall is such that it provides a tight fit within the slot The stabiliser members 50 (only one is shown) are disposed in spaced relation from one another along the length of the joint. Each stabiliser member 50 is in the form of a peg or rod 51 which, in the form shown in Figures 1 to 3 have a threaded end 52, the thread thereon being complimentary to the thread in the slot 31. In the assembled position the stabiliser member 50 is adapted to pass through apertures 47 and 48 in the lateral flanges 44 and 45 of the keying section 43 of the barrier wall Referring now to Figure 2, there is shown a joint 10 which is similar in structure to that shown in Figure 1 and like reference numerals have been used to identify like parts.

In this embodiment the base comprises two parts on opposite sides of the barrier wall which are joined together with a flexible coupling portion 35 which provides for some flexibility between the two parts of the base. The joint 40 shown in Figure 3 is similar to that shown in Figure 1 except that there is no space between the barrier wall mounting and stabiliser fastening.

20 Figure 4 illustrates a modified form of base 12 for use in a joint according to the present invention. The base is similar to those described earlier and like reference numerals as those indicated in the earlier embodiments have been used to identify like parts. In this particular embodiment an additional stabiliser fastening 30A is provided on the opposite side of the barrier wall mounting 24 to that of the other stabiliser fastening The additional stabiliser fastening 30A is of the same structure as the other fastening 430 and includes flanges 32A and 33A with a mounting slot 31A therebetween. This enables the barrier wall to be mounted in two configurations with the keying section being disposed to one side of the barrier wall mounting 24 or the other.

Figures 5 to 8 show variations of the configuration of flanges 17 and 18 (only 17 is illustrated) at the side edges of 15 and 16 the elongated body.

P 2WPDOCflYS\cmiejoin do c-6 Nobcmba 2001 -7- Figures 9, 10, and 11 show a further modified form of joint and again where possible like reference numerals have been used to identify like parts. In this embodiment, the stabilising fastening 30 includes a recess 55 having a necked opening 56 into which a fastening element 57 can be located. The fastening element includes a base portion 58 receivable within the recess and a sleeve portion 59 which projects through the opening. The sleeve portion has a complementary thread to that of the stabiliser so that the stabiliser can be secured thereto.

An alternative to the fastening element 57 is to provide a nut receivable within the recess, the nut having a complementary thread to that of the stabiliser and the stabiliser being secured to the nut by passing through the opening.

Figure 16 illustrates a further modification in which the internal surface of slot 31 of the fastening 30 has a saw-tooth configuration which cooperates with a complimentary saw-tooth configuration 85 on the end of stabilising member 50 so as to provide for a snap fit between the two parts.

*e o ~Referring now to Figure 12 there is shown a support chair 60 which is adapted to support the joint 10, the support chair 60 includes a main body portion having a pair of S*o. mounting clips 61 and 62 thereon which are adapted to receive the base portion 12 therebetween in snap fitting relation. The chair 60 is adapted for use with pegs 63 and 64 which are adapted to be driven through holes in the chair into the ground. The pegs may be separate or integral with the main body of the chair.

Figure 13 illustrates a holding assembly 66 having a clip portion 67 adapted to cooperate with a peg 68. The peg is adapted to be driven into the ground passing through a hole in the clip portion which is arranged to overlie the side edge of the base so as to hold it in position on the ground.

Figure 14 illustrates a support peg 70 comprising a shank 72 and a head 71, the P WPO0CS\DYS\ksp iojonIc-6 Noventm ZOID -8head having a support surface 73 upon which the base of the joint can rest. The support surface 73 may have thereon an adhesive tape to assist in holding the base in position.

The support peg in Figure 15 is the same as that in Figure 14 except that the head 71 and shank 72 are connectable together in co-operating threaded sections.

Figures 17 and 18 illustrate an end cap 90 which can be fitted to the end of the joint The end cap 90 includes an end wall 89 with side walls 91 and 92 and top wall 93 and bottom wall 94 extending therefrom. The bottom wall 94 has formations thereon which are complementary to those on the base of the joint. Protrusions 97 and 98 are provided on the inner face of end wall 89 and a flange 99 projects outwardly from the side walls 91 and 92 and end wall 89. The projections assist in holding the base of the joint in position.

Figures 19 to 22 illustrate coupling members 80 for joining two lengths of joint together. As shown, the coupling members can couple elements in a co-axial fashion or have two parts angularly inclined with respect to one another such as at 300, 450 or 900 to accommodate inclined joints.

Finally, it is to be understood that various alterations, modifications and/or additions may be incorporated into the various constructions and arrangements of parts 20 without departing from the spirit or ambit of the invention. 20 without departing from the spirit or ambit of the invention.

ooo •eoo•

Claims

1. A joint for use between two slab structures of settable material, the joint including a base which includes first and second mounting sections, a barrier wall mountable to the base at said first mounting section so as to extend from a major side surface thereof the barrier wall including a keying section the joint further including at least one stabilising member which is mountable to the base at said second mounting section and which is mountable to the barrier wall at a position spaced from the base.

2. A joint according to claim 1 wherein when in an assembled position, the barrier wall extends from the base at generally right angles.

3. A joint according to claim 1 or claim 2 wherein the base includes an elongated body having spaced apart side end portions which are generally parallel to one another, the barrier wall being mountable to the base so as to extend from the major side surface thereof intermediate the side edge portions. A joint according to claim 3 wherein the barrier wall separates the base into two So sections disposed on opposite sides of the barrier wall, the two sections of the base being 20 interconnected by a flexible coupling section to provide some flexibility to the base. A joint according to claim 3 or claim 4 wherein the barrier wall includes end wall sections which are interconnected by the keying section, the keying section including two laterally extending flange portions interconnected by a web portion.

6. A joint according to claim 5 wherein the web portion is generally parallel to the end wall sections and laterally spaced relative thereto.

7. A joint according to claim 6 wherein the first mounting section is in the form of a slot in the base which is adapted to receive therein a portion of one of the end wall sections of the barrier wall. PAWPDOASRSWPECI 7655030 AU_ ed .d-or I&I0

8. A joint according to claim 7 wherein the slot is defined by a pair of spaced apart flanges which project from the major sides surface, the flanges being spaced apart so as to define the slot therebetween.

9. A joint according to any preceding claim wherein the or each stabilising member is in the form of a peg which is operatively connected at one end to the second mounting section of the base and mounted to the barrier wall at a position spaced from the base. A joint according to claim 9 wherein the peg includes a threaded end portion adapted to cooperate with a threaded fastening secured to or integral with the base.

11. A joint according to claim 9 wherein the peg includes a generally saw-tooth configuration at said one end which is adapted to co-operate with a complementary configuration in a fastening on the base to provide for a snap fit between the parts. S. S :12. A joint according to claim 10 wherein the threaded fastening includes a nut which is mountable to the base, the base includes a retaining recess for receiving the nut and limiting movement thereof. So

13. A joint according to claim 10 wherein the fastening includes a fastening element having a base section which is receivable within the recess and an internally threaded sleeve section projecting form the recess and which is adapted to co-operate with the threaded end portion of the peg. 25 14. A joint according to claim 10 wherein the threaded fastening includes a threaded slot which is adapted to receive and cooperate with a threaded end portion of the peg. A joint according to claim 12 wherein the recess has an opening through which the threaded portion of the peg connects to the nut, the recess including a necked section which inhibits the nut passing out of the opening. P.\WPDOCS\AS\SPE 1E\76 O3OAU ma-Ldo-lSDIJOOS -11-

16. A joint according to any one of claims 10 to 15 wherein two fastenings are provided on said base the fastenings being disposed on opposite sides of the barrier wall.

17. A joint according to any one of claims 9 to 15 wherein the or each peg is operatively connected to the barrier wall so as to permit relative movement thereto in the direction of the longitudinal axis of the stabilising member.

18. A joint according to claim 17 wherein the stabilising rod or peg is adapted to pass through apertures in the lateral flange portions of the keying section of the barrier wall so that the barrier wall can slide along the stabilising rod or peg.

19. A joint according to claim 17 wherein the rod or peg is adapted to pass through a mounting flange which is secured to or integral with the barrier wall. 15 20. A joint support for supporting a joint according to any preceding claim, the support g* i including a shank portion with a support head portion at one end thereof, the shank portion being adapted to be driven into the ground, the head portion having a support surface upon S°which the base of the joint is carried. 6 V.° o• q

21. A joint support according to claim 20 wherein the support surface has thereon adhesive tape which assists in holding the base in position thereon.

22. A joint support according to claim 21 wherein the head portion and shank portion S form an integral unit or in another arrangement the head portion may be securable to the 25 shank portion by co-operating threaded sections which enable the head portion to be S"attached after the shank portion is driven into the ground.

23. A joint substantially as hereinbefore described with reference to the accompanying drawings. P.\WPD0CSARSSEC1E\765S3 AU mend-tdw-I1J104103 12-

24. A joint support substantially as hereinbefore described with reference to the accompanying drawings. Dated this 18th day of April, 2005 BUILDING ESSENTIAL SERVICES PTY LTD By Its Patent Attorneys DAVIES COLLISON CAVE 00 0 *of Got* *0* 0 S.00 00S0