Patent Application
20230132335
The present invention relates to a bracket assembly. In particular, the present invention relates to a bracket assembly designed to increase the mechanical strength of structural elements, particularly those used in construction.
Many different types of structural elements, such as beams, columns, brackets, purlins, rafters and the like are used in the construction industry. Many of these elements (such as beams, columns and rafters) are designed to carry loads, and are typically relatively large, heavy (and therefore expensive) objects.
On the other hand, other structural elements (such as brackets) are often fabricated from thin sections of lightweight materials. Thus, many structural elements of this type are non-load bearing.
Thus, there would be an advantage if, in the case of load-bearing structural elements, it was possible to provide relatively lightweight structural elements without reducing the load-bearing properties of the element. Similarly, there would be an advantage if, in the case of non-load bearing structural elements, it were possible to provide elements with improved mechanical properties without unduly increasing the weight of the elements.
It will be clearly understood that, if a prior art publication is referred to herein, this reference does not constitute an admission that the publication forms part of the common general knowledge in the art in Australia or in any other country.
The present invention is directed to a bracket assembly, which may at least partially overcome at least one of the abovementioned disadvantages or provide the consumer with a useful or commercial choice.
In a first aspect, the present invention resides broadly in a bracket assembly comprising a first bracket member associated with a first side of a structural element, a second bracket member associated with an opposed second side of the structural element, and wherein the first bracket member, the second bracket member and the structural element are fastened to one another using one or more fastening assemblies.
In a second aspect, the invention resides broadly in a bracket assembly comprising a bracket member associated with a side of a structural element, the bracket member and the structural member being fastened to one another using one or more fastening assemblies.
The structural element may be of any suitable form. For instance, the structural element may comprise a beam, column, rafter, bracket, purlin or the like, or any suitable combination thereof. In a preferred embodiment of the invention, the structural element may comprise an extruded section. The structural element may be of any suitable cross-sectional size or shape, although in a preferred embodiment the cross-sectional shape of the structural element may be substantially square or rectangular. In other embodiments of the invention, the structural element may have a C- or I-shaped cross-sectional shape.
The structural element may be fabricated as a unitary structure. Alternatively, the structural element may comprise two or more element members adapted for fixed or removable connection to one another. For instance, in a specific embodiment of the invention, the structural element may have an I-shaped cross-sectional shape formed by placing two C-shaped sections in abutment with, or close proximity to, one another.
In embodiments of the invention in which the structural element comprises two or more element members connected to one another, the two or more members may be fixed together using any suitable joining technique, such as welding, brazing, adhesives or the like. Alternatively, the two or more elements may be connected together using any suitable fastener, such as screws, bolts, nails, rivets, clamps, clasps or the like, or any suitable combination thereof. In a preferred embodiment of the invention, the two or more members may be connected to one another via at least one of the one or more fastening assemblies. Thus, in this embodiment, the element members may be connected to each other, the first bracket member and the second bracket member by at least one of the one or more fastening assemblies.
The first bracket member and the second bracket member may be of any suitable form. The first bracket member and the second bracket member may be of the same construction as one another or may differ from one another. The first bracket member and the second bracket member may be of any suitable shape or size, although it is envisaged that the size of the first bracket member and the second bracket member will be largely determined by the size of the structural element with which the first bracket member and the second bracket member will be used.
The first bracket member and/or the second bracket member may extend along at least a portion of the length of the structural member. In some embodiments of the invention, the first bracket member and/or the second bracket member may extend along substantially the entire length of the structural element.
In some embodiments of the invention, the first bracket member and/or the second bracket member may be provided in the form of a sheet or plate that is located in abutment with, or close proximity to, the first and/or second side of the structural element. Thus, in these embodiments of the invention, the first bracket member and/or the second bracket member may extend along at least a portion of the height of the structural member. More preferably, the first bracket member and/or the second bracket member may be of substantially the same height as the structural member. In other embodiments of the invention, the height of the first bracket member and/or the second bracket member may be greater than the height of the structural member.
Preferably, the first bracket member and/or the second bracket member may be provided with a web member and one or more flange members extending from or adjacent to at least one edge of the web member. In a preferred embodiment of the invention, the first bracket member and/or the second bracket member may comprise a web member and one or more flange members extending from or adjacent to at least one of an upper edge and a lower edge of the web member. More preferably, the first bracket member and/or the second bracket member may comprise a web member and one or more flange members extending from or adjacent to both the upper edge and the lower edge of the web member. In a most preferred embodiment, the first bracket member and/or the second bracket member may comprise a web member and a flange member extending from or adjacent to both the upper edge and the lower edge of the web member. The flange members may be of any suitable length, although in a preferred embodiment of the invention each of the flange members is substantially the same length. In a preferred embodiment of the invention, the length of the web member is greater than the length of the flange members.
The flange members may extend in any suitable direction relative to the web member. For instance, the flange member associated with the upper edge of the web member (i.e. the upper flange member) may extend in a first direction, while the flange member associated with the lower edge of the web member (i.e. the lower flange member) may extend in a second direction, the first direction and the second direction being different to one another.
In a preferred embodiment of the invention, the upper flange member and the lower flange member may extend in substantially the same direction as one another. The upper and lower flange members may extend at any suitable angle to the web member, although in a preferred embodiment of the invention, the upper and lower flange members may extend at an angle of between 80° and 100° to the web member. More preferably, the upper and lower flange members may extend at an angle of about 90° to the web member. Thus, in this embodiment of the invention, the first bracket member and/or the second bracket member may be substantially C-shaped in cross-section.
It is envisaged that, in embodiments of the invention in which the first bracket member and/or the second bracket member are substantially C-shaped in cross-section, the web members of the first bracket member and/or the second bracket member may be positioned in use substantially parallel to a web of the structural element, such as the web of a C-section structural element or an I-section structural element. Thus, in this embodiment of the invention, the web member of the first bracket member and/or the second bracket member may overlie at least a portion of the structural element, and more specifically, at least a portion of the web of the structural element. Preferably, the flange members overlie at least a portion of the flanges of the structural element.
The web member of the first bracket member and/or the second bracket member may be located in abutment with or close proximity to the web of the structural element. Alternatively, the web member of the first bracket and/or the second bracket member may be substantially parallel to the web of the structural element but may be spaced apart therefrom. This is the case when the structural member is, for instance, an I-beam. In this instance, it is envisaged that the web members of both the first bracket member and the second bracket member may be positioned substantially parallel to the web of the structural element but spaced apart therefrom.
Preferably the upper and lower flanges (if present) of the first bracket member and/or the second bracket member are configured in use to overlie at least a portion of the upper and lower flanges of the structural member. It is envisaged that the ends of the flange members distal to the web members of the first bracket member and/or the second bracket member may be located towards the centre of the flanges of the structural member. In use, a flange member of the first bracket member may be located in abutment or close proximity to an opposed flange member of the second bracket member when first bracket member and the second bracket member are fastened to one another and the structural element. However, it will be understood that this may be dependent on the size of both the structural element and the bracket members, and it is possible that the flanges of the first and second bracket members may be spaced apart from one another by a portion of the width of the flange of the structural member.
The flange members and the web member of the first bracket member and the second bracket member may be formed integrally or may be fabricated separately to one another and configured for fixed or removable connection to one another. For instance, the bracket members may be fabricated from sheet material that is rolled, folded or otherwise deformed to form the bracket member. Alternatively, the flange members of the bracket members may be welded, brazed or otherwise connected to the web member.
In a preferred embodiment of the invention, at least one of the flange members of the first bracket member and/or the second bracket member may be connected to the structural element and, in particular, to the flange of the structural element. The flange members of the bracket members and the flange of the structural member may be connected in any suitable manner, such as by welding, brazing, adhesives or the like. Alternatively, the flange members of the bracket members and the flange of the structural member may be connected using one or more mechanical fasteners, such as one or more bolts, screws, nails, rivets or the like. In a particular embodiment of the invention, the one or more mechanical fasteners may comprise Tek screws (also known as self-drilling screws or self-tapping fasteners).
In some embodiments of the invention, the flange members of the bracket members may be provided with one or more apertures through which the mechanical fasteners are located in order to connection the flange members to the structural element.
In a preferred embodiment of the invention, each of the flange members of both the first bracket member and the second bracket member is connected to the structural element via one or more mechanical fasteners.
In some embodiments of the invention, the first bracket member may comprise a web member and one or more flange members extending from one or more opposed ends of the web member, while the second bracket member may be provided in the form of a plate member. In this embodiment of the invention, the plate member may be planar across the entire plate member, or may be planar across a portion of the plate member and may be curved or angled at or adjacent at least one edge thereof. It is envisaged that this arrangement may be of particular use when attaching flooring to a bearer, and for joist wall framing.
In some embodiments of the invention, the first bracket member and/or the second bracket member may comprise two or more bracket sections. The bracket sections may preferably be positioned so that an end of a first bracket section is located in abutment with, or close proximity to, an end of a second bracket section. The bracket sections may be positioned at any suitable angle to one another, and it is envisaged that, in some embodiments, the first and second bracket sections may be positioned at a non-linear angle to one another. For instance, in embodiments of the invention in which the bracket assembly is adapted for use as an apex bracket, a first bracket section may be associated with a structural element on one side of the apex, while a second bracket section may be associated with a structural element on a second side of the apex.
As previously stated, the first bracket member, the second bracket member and the structural element are fastened to one another using one or more fastening assemblies. The fastening assemblies may be of any suitable form. For instance, in a simple form, the fastening assembly may comprise a mechanical fastener (such as a screw, rivet, nail or the like) that extends through the first bracket member, the second bracket member and the structural element (or, according to the second aspect of the invention, the bracket member and the structural member) so as to fasten them together. More preferably, the fastening assembly may comprise a bolt that extends through the first bracket member, the second bracket member and the structural element (or, according to the second aspect of the invention, the bracket member and the structural member) and is secured in place using a nut. In this embodiment, it is envisaged that the head of the bolt may be positioned in abutment with, or close proximity to, an outer surface of the bracket assembly on a first side thereof, while the bolt may be positioned in abutment with, or close proximity to, an outer surface of the bracket assembly on an opposed second side thereof. In a specific embodiment, the head of the bolt may be positioned in abutment with, or close proximity to an outer surface of either the first bracket member or the second bracket member, while the nut may be positioned in abutment with, or close proximity to, an outer surface of the other of the first bracket member or the second bracket member. Preferably, the first bracket member, the second bracket member and/or the structural member may be provided with one or more apertures therein through which the fastening assemblies are located during use.
In some embodiments, one or more washers, gaskets or the like may be positioned between the bolt head and the outer surface of the bracket assembly and/or the nut and the outer surface of the bracket assembly. In other embodiments of the invention, a flange may be formed integrally with the bolt head and/or the nut (such as when using a purlin bolt and/or nut) which functions as a washer or gasket. In these embodiments of the invention, a separate washer or gasket may not be required to be located between the bolt head and/or nut and the outer surface of the bracket assembly. The one or more washers may be of any suitable size or shape, and it will be understood that the purpose of the washer or gasket will be to distribute forces across the portion of the bracket assembly with which the washer or gasket is in contact. Thus, in some embodiments of the invention, the washer or gasket may be relatively large (such as in the form of a plate or the like) in order to distribute forces across a larger portion of the outer surface of the bracket assembly
In another embodiment of the invention, the fastening assembly may include one or more sleeve members. The sleeve members may be of any suitable form, although in a preferred embodiment of the invention, the sleeve members may be associated with the mechanical fastener. More specifically, it is envisaged that a portion of the mechanical fastener may be received in the one or more sleeve members in use. Thus, it is envisaged that the sleeve members may include an internal bore in which the mechanical fastener is received.
In some embodiments of the invention, the mechanical fastener may include a screw thread along at least a portion of its outer surface. In these embodiments of the invention, it is envisaged that the sleeve members may be provided with a complementary internal screw thread. Thus, in some embodiments the sleeve member may comprise a threaded bar joiner (also referred to a threaded rod connector, threaded rod coupler and the like). The sleeve member may have any suitable cross-sectional shape, and may be substantially circular, square, hexagonal or the like in cross-section.
Preferably, the one or more sleeve members extend at least part way between opposed sides of the bracket assembly. More preferably, the one or more sleeve members extend substantially between opposed sides of the bracket assembly. Thus, it is envisaged that the opposed ends of the sleeve members may be located in abutment with, or close proximity to, opposed inner surfaces of the bracket assembly. It will be understood that the inner surface of the bracket assembly may vary depending on the nature of the structural element. For instance, in embodiments of the invention in which the structural element comprises a C section, the inner surface may comprise an inner surface of the structural element (e.g. an inner surface of the web of the C section) and an inner surface of the first bracket member or second bracket member. Alternatively, in embodiments of the invention in which the structural element comprises a I section (either an I beam or two C sections placed back to back), the inner surface of the bracket assembly may comprise the inner surface of the first bracket member and the inner surface of the second bracket member.
In embodiments of the invention in which the structural member comprises an I section, a first sleeve member may extend from an inner surface of the first bracket member to a first side of the web of the I section, and a second sleeve member may extend from a second side of the web of the I section to an inner surface of the second bracket member. In this embodiment, a single bolt may extend through both the first sleeve member and the second sleeve member from the first side of the bracket assembly to the opposed second side of the bracket assembly, where it may be secured in place via a nut.
Alternatively, in embodiments of the invention in which the I section comprises a pair of C sections placed in abutment or close proximity to one another to form the I section, a first bolt may extend towards the web of the structural member from a first side thereof, while a second bolt may extend towards the web of the structural member from an opposed second side thereof, with the first bolt associated with a first sleeve member and the second bolt associated with a second sleeve member. In this embodiment of the invention, it is envisaged that the first bolt and the second bolt may not extend all the way through the first sleeve member and the second sleeve member, respectively. Instead, a threaded rod member may be screwed into the first sleeve member and the second sleeve member at the opposite ends thereof to the heads of the first bolt and the second bolt. Thus, it is envisaged that the threaded rod member may pass through an aperture in each of the C sections (and may be located partially therebetween) in order to engage the first sleeve member and the second sleeve member.
In a further alternative embodiment of the invention in which the I section comprises a pair of C sections placed in abutment or close proximity to one another to form the I section, it is envisaged that the first bolt may pass through an aperture in a first C section and the second bolt may pass through an aperture in the second C section. A single nut may be located between the C sections with which both the first bolt and the second bolt screw-threadedly engage. Alternatively, a first nut may be provided with which the first bolt screw-threadedly engages and a second nut may be provided with which the second bolt screw-threadedly engages. In this embodiment of the invention, it is envisaged that a threaded rod member may also be provided, the threaded rod member being located substantially between the C sections forming the I section and configured to screw-threadedly engage with both the first nut and the second nut.
The sleeve members may abut the inner surface of the first bracket member, the second bracket member and/or the structural element directly. Alternatively, one or more washers, gaskets or the like may be located between the sleeve member and the surfaces of the first bracket member, the second bracket member and/or the structural element.
In embodiments of the invention in which the mechanical fastener comprises a bolt and nut, it is envisaged the bolt and nut may be fastened tightly against the opposed outer surfaces of the bracket assembly. By also providing a sleeve member in abutment with the inner surfaces of the bracket assembly, it is envisaged that the mechanical strength of the bracket assembly may be increased. By this it is meant that the mechanical fastener applies a compressive force to the outer surfaces of the bracket assembly but the sleeve member (which is in abutment with, or close proximity to, the inner surface of the bracket assembly) substantially precludes the compressive force applied by the mechanical fastener from deforming or damaging the components of the bracket assembly.
The first bracket member and the second bracket member may be fabricated from any suitable material such as, but not limited to, a metal, metal alloy or a polymeric material. In a preferred embodiment, the first bracket member and the second bracket member may be fabricated from a metal such as aluminium, brass, steel (such as mild steel, stainless steel and so on) or the like, or any suitable combination thereof.
In some embodiments of the invention, the first bracket member and/or the second bracket member may be provided with an extension member. The extension member may be of any suitable type, although in a preferred embodiment of the invention, the extension member may be configured to overlie at least a portion of an adjacent structural member to the structural member in the bracket assembly. In this embodiment, it is envisaged that the adjacent structural member may be of any suitable form. For instance, the adjacent structural member may comprise a crossbeam or the like.
The extension member may be located at any suitable angle to the first bracket member and/or the second bracket member. In a preferred embodiment of the invention, the extension member may be located at approximately the same angle to the first bracket member and/or the second bracket member as the angle at which the adjacent structural member is located to the structural member.
In a preferred embodiment of the invention, the extension member may be located at an angle of between 1° and 179° to the first bracket member and/or the second bracket member. More preferably, the extension member may be located at an angle of between 10° and 170° to the first bracket member and/or the second bracket member. Still more preferably, the extension member may be located at an angle of between 20° and 160° to the first bracket member and/or the second bracket member. Still more preferably, the extension member may be located at an angle of between 30° and 150° to the first bracket member and/or the second bracket member. Still more preferably, the extension member may be located at an angle of between 40° and 140° to the first bracket member and/or the second bracket member. Still more preferably, the extension member may be located at an angle of between 50° and 130° to the first bracket member and/or the second bracket member. Still more preferably, the extension member may be located at an angle of between 60° and 120° to the first bracket member and/or the second bracket member. Still more preferably, the extension member may be located at an angle of between 70° and 110° to the first bracket member and/or the second bracket member. Still more preferably, the extension member may be located at an angle of between 80° and 100° to the first bracket member and/or the second bracket member.
The extension member may be formed integrally with the first bracket member and/or the second bracket member. Alternatively, the extension member may be formed separately to the first bracket member and/or the second bracket member and configured for fixed or removable connection thereto. The extension member may extend along any suitable length of the adjacent structural element.
It is envisaged that the extension member may be provided with one or more apertures therein through which a fastening member may extend. Preferably, the one or more apertures in the extension member may be configured to substantially align with one or more apertures in the adjacent structural member. The fastening member may be of any suitable form, although in a preferred embodiment of the invention, the fastening member may comprise a bolt. In this embodiment, the fastening member may extend through the adjacent structural member and a nut or the like may be affixed to the bolt in order to retain the holt in place. In an alternative embodiment of the invention, the extension member may be connected to the adjacent structural member using one or more fastening assemblies as hereinbefore described. In this embodiment of the invention, it is envisaged that a further bracket member or extension member may be associated with the opposed face of the adjacent structural member.
In some embodiments, the first bracket member and/or second bracket member may be of sufficient size to extend between two structural members of the same type, same orientation, same duty etc. For instance, the first bracket member and/or the second bracket member may extend between two vertical structural members, two horizontal structural members and so on. Preferably, the first bracket member and/or the second bracket member may be configured for connection to both of the two structural members. In this embodiment of the invention, it is envisaged that a spacer member may be located between the two structural members. Any suitable spacer member may be provided, although it will be understood that the spacer member may be provided in order to reduce or eliminate deflection of the two structural members towards one another once the first bracket member and/or the second bracket member have been connected to form the bracket assembly.
In some embodiments of the invention, the bracket assembly may further comprise one or more connection members. The connection members may be of any suitable form, although it is envisaged that the connection members may be configured to allow the bracket assembly to be connected to a lifting apparatus (such as a crane, pulley, forklift or the like) in order to enable the bracket assembly (including the structural element) to be lifted or moved into or out of position during the construction or demolition of a structure, moved between locations, or the like.
The connection members may be fixedly or removably connected to any suitable portion of the bracket assembly. Preferably, however, the connection members are connected to the first bracket member and/or the second bracket member. In a preferred embodiment, the connection members may comprise one or more hooks, eyebolts, lifting lugs or the like, or any suitable combination thereof.
The connection members may be, for example, welded or otherwise fixed to the first bracket member and/or the second bracket member. Alternatively, the connection members may be associated with an elongate member. In embodiments of the invention in which the bracket members comprise bracket sections positioned at an angle to one another, it is envisaged that the elongate member may be located between adjacent bracket sections.
In some embodiments of the invention, the elongate member may be provided with an external screw thread. In this embodiment, it is envisaged that the elongate member may protrude beyond the upper and lower flanges of the bracket member. A connection member may be associated with a first end of the elongate member. In some embodiments of the invention, a pair of movement restriction members may be provided. The movement restrictions members may be of any suitable form, although in a preferred embodiment of the invention the movement restriction members may comprise nuts. It will be understood that the purpose of the movement restriction members may be to reduce or eliminate movement of the elongate member relative to the bracket member. Thus, in a preferred embodiment of the invention, the movement restriction members may be located on the elongate member in abutments with the upper and lower flanges of the bracket member.
Preferably, the position of the movement restriction member relatives to the elongate member may be adjusted, for instance by screwing the movement restriction member relative to the elongate member. In this way, the position of the connection member relative to the bracket member may be adjusted.
In some embodiments of the invention, the bracket member may be provided with one or more reinforcing members. Any suitable reinforcing members may be provided, although it will be understood that the purpose of the reinforcing members may be to ensure that, during lifting or other handling of the bracket member (or bracket assembly) that the bracket member (or bracket assembly) is reinforced against deformation and/or failure.
In a preferred embodiment of the invention, the reinforcing members comprise one or more plate members adapted for connection to the web and/or one or more flanges of the bracket member. The plate members may be attached using any suitable technique, such as one of more mechanical fasteners, welding, brazing, adhesives or the like.
In embodiments of the invention in which the bracket assembly is used as an apex bracket, the bracket assembly may be used to provide improved strength and/or stability to a structure in conditions of relatively high wind (including storms, cyclones, tornados, typhoons and the like).
In this embodiment, one or more carrying members may be associated with the bracket assembly. The one or more carrying members may be of any suitable form, although it is preferred that the one or more carrying members may be configured to carry a weight thereon (or to have a force applied thereto). Therefore, the carrying members may comprise one or more hooks, bolts, slings, platforms or the like. Preferably, the one or more carrying members are configured for movement relative to the bracket assembly when a weight is placed on the carrying member. In particular, it is envisaged that, when a weight is placed on a carrying member, the carrying member may move generally downwardly relative to the bracket assembly, and towards the ground. The weight may be of any suitable form, and the nature of the weight is not critical to the working of the invention.
The carrying member may move relative to the bracket assembly using any suitable technique. Preferably, however, the carrying member is associated with an elongate member that is configured to allow the carrying member to move relative to the bracket assembly. The elongate member may be of any suitable form, although in a preferred embodiment of the invention, the elongate member may be an elongate flexible member, such as a cable, cord, chain, rope or the like, or any suitable combination thereof. In a preferred embodiment of the invention, the elongate flexible member may be associated with the bracket assembly at a first end thereof, and may be associated with the carrying member at an opposed second end thereof. The first end of the elongate flexible member may be located within the bracket assembly, or on an outer surface thereof.
The elongate flexible member may be a relatively inextensible member (such as a chain, metal cable or the like). In this embodiment of the invention, it is envisaged that the elongate flexible member may be provided on a spool, reel drum or the like, and may be wound onto or off the spool, reel or drum as the carrying member moves relative to the bracket assembly. In this embodiment, the spool, reel or drum may be associated with the bracket assembly. In other embodiments, the elongate flexible member may be a relatively extensible member (for instance, a cord such as a bungee cord or the like). In this embodiment of the invention, the elongate flexible member may be fixed at one end thereof and may extend under the weight applied to the carrying member associated with an opposed second end thereof.
In some embodiments of the invention, an elongate flexible member may be associated with one or more structural elements of the structure with which the bracket assembly is associated. In particular, an elongate flexible member may be associated with a post or column of a structure. In other embodiments, an elongate flexible member may be associated with a footing (such as a concrete footing) on or to which the post or column is mounted. In a preferred embodiment of the invention, it is envisaged that the elongate flexible member (or an elongate flexible member) is associated with an upright structural member (post, column or the footing of a post or column) on each side of the bracket assembly.
It is envisaged that an elongate flexible member may be associated with each upright, while a further elongate flexible member may extend between the bracket assembly and the carrying member. In other embodiments of the invention, a single elongate flexible member may be associated with both of the upright structural members and a further elongate flexible member may extend from the bracket assembly to the carrying member. In another embodiment, a single elongate flexible member may be associated with both of the upright structural members and also may extend from the bracket assembly to the carrying member. For simplicity, however, the term “elongate flexible member” is intended to encompass each of the different embodiments mentioned herein.
In some embodiments, the elongate flexible member may be connected to the upright structural member. Preferably, the elongate flexible member may be connected to the upright structural member in a lower region of the upright structural member, and therefore in a lower region of the structure. If the elongate flexible member is a relatively inextensible member, a spool, reel or drum may be located on the upright structural member to which the elongate flexible member is wound on and off. If the elongate flexible member is a relatively extensible member, the elongate flexible member may be connected at an end thereof to the upright structural member using any suitable technique.
Preferably, the elongate flexible member extends substantially upwardly along the upright structural member to the bracket assembly. In a preferred embodiment, one or more guide members (such as pins, rollers, wheels or the like) may be located on the upright structural member in order to locate the elongate flexible member and also to provide a surface over which the elongate flexible member may extend and retract in use. Any suitable number of guide members may be located on the upright structural members and in any suitable location thereon.
In some embodiments of the invention, the elongate flexible member may connect directly to the carrying member. Alternatively, the elongate flexible member may be associated with a tensioning assembly located between the carrying member and the opposed ends of the elongate flexible member associated with the upright structural members.
The tensioning assembly may be of any suitable form. However, it is envisaged that the tensioning assembly may be actuated when a weight is placed on the carrying member. Specifically, as the weight moves the carrying member generally downwards towards the ground, the tensioning assembly increases the tension on the elongate flexible member. In addition, increased tension on the elongate flexible member exerts a force on the upright structural members. Preferably, the force exerted on the upright structural members is in a direction generally towards the upright structural member on the opposed side of the bracket assembly. By generating this force, which generally acts on the upright structural elements in a direction inwardly towards one another, the stability and strength of the structure may be improved. This may be particularly useful in situations of high wind (storms, cyclones, tornados, typhoons and the like) in order to reduce or eliminate the possibility of damage to the structure.
The tensioning assembly may be of any suitable form. However, in a preferred embodiment of the invention, the tensioning assembly may be in the form of a scissor mechanism. It is envisaged that, as the carrying member moves generally downwardly when the weight is applied to it, the scissor mechanism is actuated. The scissor mechanism may either expand or contract in order to apply tension to the elongate flexible member.
Preferably, the scissor mechanism includes at least a pair of scissor members. It is envisaged that actuation of the scissor mechanism results in actuation of both of the at least a pair of scissor members. It is envisaged that actuation of the scissor mechanism may result in movement of the scissor members in an opposed direction to one another. More specifically, actuation of the scissor mechanism may result in movements of the scissor members either generally towards one another, or generally away from one another. Preferably, the scissor mechanism is located within, or on an outer surface of, the bracket assembly.
In a particular embodiment of the invention, a first scissor member may located generally on a first upright structural member, while a second scissor member may be located generally on a second upright structural member. Preferably, the first scissor member and the second member are each associated with a common pivot point, and are configured to pivot relative to one another when the scissor mechanism is actuated.
In a preferred embodiment, the portion of the elongate flexible member extending from the first upright structural member is associated with the second scissor member, while the portion of the elongate flexible member extending from the second upright structural member is associated with the first scissor member. Thus, it is envisaged that the elongate flexible member may cross over itself in the vicinity of the scissor mechanism. In this way, the generally inward force may be exerted on each of the upright structural members.
In an alternative embodiment of the invention, the tensioning assembly may comprise one or more mechanical fasteners associated with the elongate flexible member. In a preferred embodiment, the mechanical fastener may comprise a bolt and, more specifically, an eye bolt.
It is envisaged that, in this embodiment, the elongate flexible member may be connected, at opposite ends thereof, to an upright structural member (post, column or the footing of a post or column) on each side of the bracket assembly. The elongate flexible member may extend substantially upwardly along the upright structural member and may be associated with the mechanical fastener. In a preferred embodiment of the invention, the elongate flexible member may be configured to pass through the eye of the eye bolt.
The elongate flexible member may be associated with one or more guide members between the opposed ends thereof. Any suitable guide members may be provided, although in a preferred embodiment the guide members may comprise rollers. In this embodiment, the elongate flexible member may pass over the rollers to ensure smooth movement of the elongate flexible member.
Preferably, the mechanical fastener may extend through a lower portion of the bracket assembly. In embodiments of the invention in which the mechanical fastener comprises a bolt, a threaded portion of the bolt may extend through the lower portion of the bracket assembly. In some embodiments, a nut, hook or the like may be affixed to the threaded portion of the bolt. A weight may then be placed upon the bolt (and/or nut or hook) to extend the bolt substantially downwardly, thereby tensioning the elongate flexible member.
In a third aspect, the invention resides broadly in an assembly for securing and/or reinforcing a structure, the assembly comprising:
In a preferred embodiment of the invention, the tensioning assembly may be associated with a carrying member. The carrying member may be of any suitable form, such as, but not limited to, one or more hooks, bolts, slings, platforms or the like.
The carrying member may be located at any suitable location relative to the bracket assembly. However, in a preferred embodiment of the invention, the carrying member may be positioned beneath a lower portion of the bracket assembly. In this way, the carrying member may be positioned between the bracket assembly and the ground.
The present invention provides numerous advantages over the prior art. Firstly, the present invention provides a bracket assembly that has improved mechanical strength in comparison to prior art bracket assemblies. This result in improved reinforcement of the structure in which it is used, reducing or eliminating the risk of component failure. The bracket assembly also provides this improved mechanical strength without significant weight increases and can also reduce the costs of materials in construction by allowing the use of thinner support beams.
It is envisaged that this improved mechanical strength may be achieved through, in particular, the fastening assembly. By providing a fastener interconnecting the first bracket member, the structural member and the second bracket member, a compressive force is applied to both sides of the bracket assembly thereby strengthening the assembly. In particular, it is envisaged that the assembly may be stiffened by the fastener interconnecting the first bracket member, the structural member and the second bracket member. In particular, the first bracket member and the second bracket member may be placed under tension by the fastener, thereby stiffening the assembly. In addition, when one or more sleeve members are provided in the fastening assembly, the compressive force generated by the fastener is prevented from damaging or deforming the bracket members and/or the structural member.
Any of the features described herein can be combined in any combination with any one or more of the other features described herein within the scope of the invention.
The reference to any prior art in this specification is not and should not be taken as an acknowledgement or any form of suggestion that the prior art forms part of the common general knowledge.
Preferred features, embodiments and variations of the invention may be discerned from the following Detailed Description which provides sufficient information for those skilled in the art to perform the invention. The Detailed Description is not to be regarded as limiting the scope of the preceding Summary of the Invention in any way. The Detailed Description will make reference to a number of drawings as follows:
The second bracket member 13 includes a web 20 located substantially parallel to, but spaced apart from, the web 15 of the structural element 12. The second bracket member 13 also includes an upper flange 21 located parallel to the upper flange 17 of the structural element 12 and a lower flange 22 located parallel to the lower flange 19 of the structural element 12. Thus, the first bracket member 11 and the second bracket member 13 substantially surround at least a portion of the structural element 12.
The upper flange 16 of the first bracket member 11 and the upper flange 21 of the second bracket member 13 are connected to the upper flange 17 of the structural element 12 via Tek screws 23. Similarly, the lower flange 18 of the first bracket member 11 and the lower flange 22 of the second bracket member 13 are connected to the lower flange 19 of the structural member 12 via Tek screws 23.
The bracket assembly 10 further comprises a fastening assembly 24 configured to fasten the first bracket member 11, the second bracket member 13 and the structural element 12 to one another. The fastening assembly 24 comprises a bolt 25 including a bolt head 26 that is located in abutment with an outer surface 27 of the first bracket member 11. The bolt 25 extends through the entire assembly 10 and projects outwardly from an outer surface 28 of the second bracket member 13. A purlin nut 29 is associated with the end of the bolt 25 extending from the outer surface 28 of the second bracket member 13 and the nut 29 is tightened such that located in abutment with the outer surface 28 of the second bracket member 13.
The bolt 25 is provided with an outer screw thread that is complementary to the inner screw thread of a sleeve member 30 in the form of a threaded bar joiner. The sleeve member 30 is sized so as to extend substantially between the web 15 of the structural element 12 and the web 20 of the second bracket member 13. Washers 31, 32 are located between the sleeve member 30 and the web 15 of the structural member 12 and the web 20 if the second bracket member 13, respectively.
In use, the bolt 25 and nut 29 are tightened so as to produce a compressive force against opposed sides of the bracket assembly 10. The presence of the sleeve member 30 extending between opposed sides of the bracket assembly 10 at the interior thereof prevents the bolt 25 and nut 29 being tightened to the point where damage or deformation of the bracket assembly 10 occurs.
The constructions of the fastening assembly 49 of the bracket assembly 40 is substantially identical to that of
Tek screws 23 that connect the upper flange 16 of the first bracket member 11 and the upper flange 21 of the second bracket member 13 to the upper flange 17 of the structural element 12. In this Figure, it may also be seen that four fastening assemblies 24 have been used to fasten together the first bracket member 11, the second bracket member 13 and the structural element 12.
The bracket member 100 of
A connection member 107 in the form of an eye bolt is provided on a first end of the elongate member 106. Movement restriction members 108 in the form of a pair of nuts are provided on the elongate member 106 in abutment with the flanges 104 in order to reduce or eliminate movement of the elongate member 106 relative to the bracket member 100. The position of the movement restriction members 108 relative to the elongate member 106 may be adjusted by screwing the movement restriction members 108 relative to the elongate member 106. In this way, the position of the connection member 107 relative to the bracket member 100 may be adjusted.
In
An elongate flexible member 116 in the form of an extensible cord is attached at opposed ends thereof to the columns 111, 112. The elongate flexible member 116 extends upwardly along the columns 111, 112 towards the apex 115 of the structure. A plurality of guide members 117 in the form of rollers are provided on the columns 111, 112 in order to both maintain tension on the elongate flexible member 116 and also to prevent the elongate flexible member 116 from becoming snagged or tangled.
A tensioning assembly in the form of a scissor assembly 118 is located at the apex 115 of the structure. It is envisaged that the scissor assembly 118 will typically be located in the interior of an apex bracket assembly such as that illustrated in
The scissor assembly 118 comprises a first scissor member 119 associated with column 111 and a second scissor member 120 associated with column 112. The first scissor member 119 is associated with the portion of the elongate flexible member 116 that is attached to column 112, while the second scissor member 120 is associated with the portion of the elongate flexible member 116 that is attached to column 111. Thus, the elongate flexible member 116 crosses over itself between the columns 111, 112 and the scissor assembly 118.
A carrying member in the form of a hook 121 extends from the scissor assembly 118. When a weight (not shown) is placed on the hook 121, the hook 121 moves in a downward direction towards the ground. Movement of the hook 121 relative to the apex bracket (not shown in this Figure) results in scissor member 119 pivoting in a clockwise direction about pivot point 122 and scissor member 120 pivoting in an anticlockwise direction about pivot point 122. These movements of the scissor members 119, 120 result in the elongate flexible member 116 being tensioned, thereby applying a force to the columns 111, 112 in a direction generally towards one another. This force applied to the columns 111, 112 results in increased strength and stability to the structure, which assists in making the structure resistant to damage in conditions of high wind.
The assembly 10 further comprises a fastening assembly including a first bolt 120 configured to connect the first bracket member 11 to the structural member 12 via a sleeve 121, and a second bolt 122 configured to connect the second bracket member 13 to the structural member 12 via the sleeve 121.
The first bracket member 11 includes an extension member 123, while the second bracket member 13 also includes an extension member 124. The extension members 123, 124 are located at approximately 90° to the webs 14, 20 of the first bracket member 11 and the second bracket member 13 respectively.
The extension members 123, 124 are configured to overlie portions of an adjacent structural member 125, and are configured for connection to the adjacent structural member 125 via bolts 126.
In
In
The eye bolt 138 extends through the lower edge of the apex bracket 136 towards the ground. When a weight is placed upon the eye bolt 138, the elongate flexible member 131 is extended and tensioned, thereby drawing the column 132 to which the first end of the flexible elongate member 131 is connected and the column (not shown) to which the second end of the elongate flexible member 131 is connected generally towards one another. By tensioning the structure in this manner, the strength of the structure, and therefore the resistance of the structure to conditions of high wind (such as cyclones, tornadoes, typhoons etc.) is improved.
In the present specification and claims (if any), the word ‘comprising’ and its derivatives including ‘comprises’ and ‘comprise’ include each of the stated integers but does not exclude the inclusion of one or more further integers.
Reference throughout this specification to ‘one embodiment’ or ‘an embodiment’ means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearance of the phrases ‘in one embodiment’ or ‘in an embodiment’ in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more combinations.
In compliance with the statute, the invention has been described in language more or less specific to structural or methodical features. It is to be understood that the invention is not limited to specific features shown or described since the means herein described comprises preferred forms of putting the invention into effect. The invention is, therefore, claimed in any of its forms or modifications within the proper scope of the appended claims (if any) appropriately interpreted by those skilled in the art.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2020900967 | Mar 2020 | AU | national |
| 2020901581 | May 2020 | AU | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/AU2021/050273 | 3/29/2021 | WO |
