Curved sheeted race

Abstract

A curved sheeted race unit (10) of a curved sheeted race (100) comprising: a curved inner panel (2); and, a curved outer panel (3), wherein each panel (2, 3) comprises: a braced frame (24, 34) that, when viewed in plan, is substantially in the shape of a planar arc, wherein the braced frame (24, 34) comprises non-deformed bracing (26, 36), not subjected to a deformation process; and, a curved sheet (25, 35) supported by the braced frame (24, 34) and providing an upwardly extending walkway wall (250, 350) and an upwardly extending braced wall (251, 351) opposite the walkway wall (250, 350), wherein the non-deformed bracing (26, 36) extends along and is connected to the braced wall (251, 351) of the curved sheet (25, 35), wherein the curved sheets (25, 35) within the braced frames (24, 34) extend upwardly and away from each other to provide an animal walkway (8) between the inner and outer panels (2, 3) that, when viewed in plan, is substantially in the shape of a planar arc.

Description

CURVED SHEETED RACE

[0001] Priority Application

[0002] This patent application claims priority of Australian Provisional Patent Application No. 2024903065, filed 24 September 2024, the entire contents of which are incorporated herein by reference.

[0003] Technical Field

[0004] This invention relates, inter alia, to a curved sheeted race for controlling the movement of livestock, to a curved sheeted race unit of the curved sheeted race, to a curved sheeted panel of the curved sheeted race / unit, and, to a method of manufacturing a curved panel of the curved sheeted race / unit.

[0005] Background Art

[0006] Curved races are used to control animal movement / flow in animal yards, and typically have rails each side of an arc-shaped (arcuate) animal walkway.

[0007] Curved sheeted races may have sheets or panels one or each side of the animal walkway, which can further improve animal flow by obscuring visual distractions that may otherwise frighten or confuse the animals.

[0008] V-shaped curved sheeted races can further improve animal flow in that they are designed to stop animals from turning around in the race walkway. V-shaped curved sheeted races have an animal walkway that is V-shaped when viewed in end elevation, which means that the animal walkway is narrower at its bottom than top.

[0009] Manufacturing V-shaped curved sheeted races is technically challenging, time consuming and expensive. Using traditional deformation processes such as bending and rolling to produce consistent, accurate, precise curves or arcs in structural materials to manufacture such races or components thereof is problematic. Also, there can be wastage of construction materials, for example, in that traditional processes may unavoidably leave a terminal portion of such materials unshaped / unbent and therefore unusable.

[0010] Object of the Invention

[0011] It is an object of one or more embodiments of the present invention to minimise or overcome one or more of the disadvantages of traditional deformation processes.

[0012] Alternatively, it is an object of one or more embodiments of the present invention to provide an improved manufacturing process for producing a curved sheeted race or a curved sheeted race unit thereof or a curved panel thereof using minimal deformation processes or inducing significant stresses into components thereof.

[0013] Alternatively, it is an object of one or more embodiments of the present invention toprovide a curved sheeted race or a curved sheeted race unit thereof or a curved panel thereof.

[0014] Alternatively, it is an object of one or more embodiments of the present invention to provide a sheeted race or components thereof.

[0015] Alternatively, it is an object of one or more embodiments of the present invention to provide the consumer with a commercial choice.

[0016] Description of the Invention

[0017] Described herein is a curved sheeted race for controlling the movement of animals. Described herein is a curved sheeted race unit of a curved sheeted race. Described herein is a curved sheeted panel of a curved sheeted race or unit. Described herein is a method of manufacturing a curved panel of the curved sheeted race or unit. Described herein is a sheeted race unit (curved or linear) or a sheeted race (curved or linear), or components thereof.

[0018] According to a first aspect of the present invention, there is provided a curved sheeted race unit of a curved sheeted race, comprising:

[0019] a curved inner panel that, when viewed in plan, is substantially in the shape of a planar arc and comprises first and second ends at opposed ends of the planar arc; and

[0020] a curved outer panel that, when viewed in plan, is substantially in the shape of a planar arc and comprises first and second ends at opposed ends of the planar arc, wherein each said panel comprises:

[0021] a braced frame that, when viewed in plan, is substantially in the shape of a planar arc, wherein the braced frame comprises non-deformed bracing, not subjected to a deformation process; and

[0022] a curved sheet supported by the braced frame and providing an upwardly extending walkway wall and an upwardly extending braced wall opposite the walkway wall, wherein the non-deformed bracing extends along and is connected to the braced wall of the curved sheet,

[0023] wherein the curved sheets of or within the braced frames extend upwardly and away from each other to provide an animal walkway between the inner and outer panels that, when viewed in plan, is substantially in the shape of a planar arc.

[0024] The term ‘when viewed in plan’ as used herein means viewing the curved sheeted race, curved sheeted race unit, curved sheeted panel, curved panel, or component thereof from above or below. The term ‘when viewed in top plan’, for example, means viewing the curved sheeted race, curved sheeted race unit, curved sheeted panel, curved panel, or component thereof directly from above. See, for example, Figure 4 herein.

[0025] The term ‘when viewed in end elevation’ as used herein means viewing the curved sheeted race, curved sheeted race unit, curved sheeted panel, curved panel, or component thereof from a left or right end thereof. See, for example, Figures 5 and 6 herein.

[0026] The term ‘when viewed in front elevation’ as used herein means viewing the curved sheeted race, curved sheeted race unit, curved sheeted panel, curved panel, or component thereof from a front side thereof. See, for example, Figure 3 herein.

[0027] The term ‘when viewed in rear elevation’ as used herein means viewing the curved sheeted race, curved sheeted race unit, curved sheeted panel, curved panel, or component thereof from a rear side thereof. See, for example, Figure 7 herein.

[0028] The term ‘conical arc’ as used herein means a portion of a curve that lies on the surface of a cone and follows the contour of the cone's surface, meaning that it curves in a way that is consistent with the cone's shape. Unlike a simple arc in a plane (‘planar arc’), a conical arc exists in three-dimensional space, wrapping around the cone.

[0029] The terms ‘not subjected to a deformation process’ and ‘non-deformed’ as well as similar terms as used herein mean that the material / component / bracing / bracing member has not been deformed. ‘Deformation’ involves a change in shape or size of a material due to applied forces. That is, the material / component / bracing / bracing member has not been shaped using elastic or plastic deformation. While deformation changes the shape of a material / component through stretching, compressing, bending or similar actions, a process such as cutting - eg. laser cutting - modifies the material by removing portions of it, therefore making it a distinct process from deformation.

[0030] ‘Plastic deformation’ as used herein denotes deformation that is permanent. The material does not return to its original shape after the force is removed.

[0031] ‘Elastic deformation’ as used herein denotes deformation that is temporary and reversible.

[0032] The inner and outer panels can be of any suitable size, shape and construction, and can be made of any suitable material or materials. The inner panel can comprise the first and second ends, a top and a bottom. The outer panel can comprise the first and second ends, a top and a bottom.

[0033] Typically, the inner panel will be shorter in height than the outer panel.

[0034] Typically, the planar arc of the inner panel will be shorter (ie. it will have a smaller radius) than the planar arc of the outer panel, such that the animal walkway is substantially in the shape of a planar arc when viewed in plan. Typically, the planar arcs of the inner panel, animal walkway and outer panel will be substantially concentrically arranged when viewed in plan relative to a horizontal plane or ground surface.

[0035] Typically, the animal walkway is substantially V-shaped when viewed in end elevation. This is because the curved sheets extend upwardly and away from each other.

[0036] In some embodiments, the first ends of the inner and outer panels extend alongsubstantially the same radial line or plane . In some embodiments, the second ends of the inner and outer panels extend along substantially the same radial line or plane. In some embodiments, the first and second ends of the inner panel extend upwardly. In some embodiments, the first and second ends of the outer panel extend upwardly.

[0037] Each braced frame can be of any suitable size, shape and construction, and can be made of any suitable material or materials. Each braced frame can have a top, bottom, first end and second end. In some embodiments, each braced frame, when viewed in plan, is substantially in the shape of a planar arc. In some embodiments, the top and bottom of each braced frame, when viewed in plan, are substantially in the shape of a planar arc. In some embodiments, the planar arcs of the top and bottom of each braced frame, when viewed in plan, are substantially concentrically arranged relative to a horizontal plane or ground surface.

[0038] In some embodiments, each braced frame comprises a frame that frames the braced wall of the curved sheet. Each frame can have a top, bottom, first end and second end. In some embodiments, each frame, when viewed in plan, is substantially in the shape of a planar arc. In some embodiments, the top and bottom of each frame, when viewed in plan, are substantially in the shape of a planar arc. In some embodiments, the planar arcs of the top and bottom of each frame, when viewed in plan, are substantially concentrically arranged relative to a horizontal plane or ground surface.

[0039] Preferably, the frame extends atop, adjacent or alongside each edge of the braced wall of the curved sheet, including the top, bottom, first end and second end.

[0040] In some embodiments, each frame can be of unitary construction. In some embodiments, each frame can comprise frame sections that are connected together. The frame sections can be connected to each other in any suitable way, including by way of clamps, locking cams, welding, or / and mechanical fasteners such as screws, bolts and / or rivets.

[0041] Each frame or frame section can be of solid cross-section, for example, a solid bar, solid rod or angle iron, or of hollow cross-section, for example, tubular.

[0042] In some embodiments, each frame is manufactured using a plastic deformation process or is plastically deformed.

[0043] Each curved sheet can be of any suitable size, shape and construction, and can be made of any suitable material or materials. Preferably, each curved sheet is made of metal, preferably steel, stainless steel or alloy.

[0044] In some embodiments, a, or each, curved sheet can comprise two or more curved sheet sections. These sections can be of unitary construction, connected together, directly connected together, indirectly connected together, not connected together, or have a gap between them. In some embodiments, a, or each, curved sheet can comprise an upper curved sheet section and alower curved sheet section. In some embodiments, a, or each, curved sheet can comprise an upper curved sheet section, a lower curved sheet section, and an intermediate curved sheet section.

[0045] In some embodiments, a, or each, curved sheet or at least one section thereof can have the curvature of a conical arc. In some embodiments, a, or each, curved sheet or at least one section thereof can have the curvature of a planar arc. In some embodiments, a, or each, curved sheet or at least one section thereof can have the curvature of both a conical arc and a planar arc.

[0046] In some embodiments, the upper curved sheet section can have the curvature of a conical arc. In some embodiments, the lower curved sheet section can have the curvature of a planar arc. In some embodiments, the upper curved sheet section can have the curvature of a planar arc. In some embodiments, the lower curved sheet section can have the curvature of a conical arc. In some embodiments, the upper and lower curved sheet sections are of unitary construction. In some embodiments, the upper and lower curved sheet sections comprise separate sheet pieces.

[0047] In some embodiments, a, or each, curved sheet or at least one section thereof can comprise a surface that is continuous or sealed, or substantially continuous or sealed, in that its surface lacks or substantially lacks perforations, apertures or other openings. In some embodiments, an animal cannot see through the sheet or section thereof.

[0048] In some embodiments, a, or each, curved sheet or at least one section thereof can have perforations, apertures or other openings. These may be regularly spaced or not. In some embodiments, a, or each, curved sheet or at least one section thereof can be in the form of a mesh having apertures or openings. In some embodiments, a, or each, curved sheet or at least one section thereof can be in the form of a mesh having regularly spaced apertures or openings. Typically, the perforations, apertures or other openings are small enough to prevent the foot of an animal getting caught. Typically, the perforations, apertures or other openings are large enough to enable an operator to hose out and clean the race unit from outside of the unit. The mesh can be square mesh or any other suitable safety mesh. In some embodiments, the mesh openings are no larger than about 50 mm square or diameter.

[0049] In some embodiments, a, or each, curved sheet can comprise an upper curved sheet section and a lower curved sheet section, and the surfaces of these sections may differ. For example, in some embodiments, one section can comprise a surface that is continuous or sealed, or substantially continuous or sealed, and the other section can have perforations, apertures or other openings. For example, in some embodiments, each section can have perforations, apertures or other openings and these may differ between the sections.

[0050] In some embodiments, a, or each, curved sheet can comprise an upper curved sheetsection and a lower curved sheet section, and the lower curved sheet section can be in the form of a mesh. In some embodiments, a, or each, curved sheet can comprise an upper curved sheet section that is continuous or sealed or substantially continuous or sealed, and a lower curved sheet section that is in the form of a mesh.

[0051] In some embodiments, the walkway wall of each curved sheet is smooth, substantially smooth, or mostly smooth so as to not injure an animal moving through the animal walkway. In some embodiments, each curved sheet is smooth, substantially smooth, or mostly smooth so as to minimise possible injury to any animal moving through the animal walkway.

[0052] Each curved sheet can have a top or top edge, bottom or bottom edge, first end or first end edge, and second end or second end edge. In some embodiments, each curved sheet, when viewed in plan, is substantially in the shape of a planar arc. In some embodiments, the top and bottom or top and bottom edge of each curved sheet, when viewed in plan, are substantially in the shape of a planar arc. In some embodiments, the planar arcs of the top and bottom or top and bottom edge of each curved sheet, when viewed in plan, are substantially concentrically arranged relative to a ground surface or horizontal plane.

[0053] In some embodiments, the curved sheet of the inner panel has the curvature of a conical arc. In some embodiments, the curved sheet of the inner panel further has the curvature of a planar arc. In some embodiments, the curved sheet of the inner panel, when viewed in front elevation, comprises a linear or substantially linear top or top edge and a linear or substantially linear bottom edge, and these are spaced parallel or substantially parallel relative to each other. In some embodiments, the curved sheet of the inner panel, when viewed in front elevation, comprises a straight or substantially straight first end or first end edge and a straight or substantially straight second end or second end edge, and these ends or edges extend along different radial lines. In some embodiments, these ends or edges converge towards each other at the top or top edge.

[0054] In some embodiments, the curved sheet of the outer panel has the curvature of a conical arc. In some embodiments, the curved sheet of the outer panel further has the curvature of a planar arc. In some embodiments, the curved sheet of the outer panel, when viewed in front elevation, comprises a curved top or curved top edge and a curved bottom or curved bottom edge, and these curves are concentrically spaced relative to each other. In some embodiments, the curved sheet of the outer panel, when viewed in front elevation, comprises a straight or substantially straight first end or first end edge and a straight or substantially straight second end or second end edge, and these ends or edges extend along different radial lines. In some embodiments, these ends or edges converge towards each other at the bottom or bottom edge.

[0055] In some embodiments, each frame comprises frame sections that extend atop, adjacent or alongside each edge of the braced wall of the curved sheet, including the top, bottom, first endand second end (or edges) of the curved sheet. In some embodiments, each frame further comprises a frame section(s) extending between adjacent curved sheets sections, such as the upper and lower curved sheet sections.

[0056] In some embodiments, each frame comprises atop horizontal frame section extending substantially horizontally along the top or top edge of the braced wall of the curved sheet. In some embodiments, each frame comprises a bottom horizontal frame section extending substantially horizontally along the bottom or bottom edge of the braced wall of the curved sheet. In some embodiments, each frame comprises an intermediate horizontal frame section extending substantially horizontally between adjacent curved sheet sections. In some embodiments, the top horizontal frame section and bottom horizontal frame section, when viewed in plan, are substantially in the shape of a planar arc. In some embodiments, the planar arcs of the top and bottom horizontal frame sections, when viewed in plan, are substantially concentrically arranged and offset from each other relative to a ground surface or horizontal plane.

[0057] In some embodiments, each frame comprises a first upstanding frame section extending along the first end or first end edge of the braced wall of the curved sheet. In some embodiments, each frame comprises a second upstanding frame section extending along the second end or second end edge of the braced wall of the curved sheet. In some embodiments, the upwardly extending frame sections are substantially linear / straight when viewed in end elevation. In some embodiments, the upwardly extending frame sections are bent, have a bend, or are nonlinear when viewed in end elevation.

[0058] Each curved sheet can be supported by a respective braced frame in any suitable way. In some embodiments, mechanical fasteners such as screws, bolts and / or rivets are used to connect the frame or frame sections to the braced wall of the curved sheet. In some embodiments, welding such as spot, laser, stick, MIG, or TIG, or friction, or stir welding is used to connect the frame to the braced wall of the curved sheet.

[0059] As mentioned, non-deformed bracing is used, that is bracing that has not been subjected to a deformation process. In that context, the bracing can be of any suitable size, shape and construction, and can be made of any suitable material or materials. The nature of the bracing (also called ribs, ribbing or webbing) will depend, in part, on the lateral load intended to be imposed by an animal (or animals) located within the animal walkway. Preferably, the bracing is non-deformed and shaped / prepared / manufactured to match the conical arc and / or planar arc curvature of the curved sheet.

[0060] In some embodiments, the bracing comprises one or more bracing members extending along the braced wall of the curved sheet. Preferably, the bracing members are prepared / manufactured to match the conical and / or planar arc curvature of the curved sheet. In someembodiments, the bracing comprises one or more bracing members extending along the braced wall of the curved sheet within the frame and connected to the frame. The one or more bracing members can extend horizontally, substantially horizontally, vertically, substantially vertically, and / or diagonally in such a manner that ensures a sheet-contacting edge or face of the bracing member abutting the braced wall of the curved sheet substantially follows the surface of the braced wall of the sheet to provide support to the sheet.

[0061] In some embodiments, two or more of the bracing members can cross paths / intersect in such a manner that ensures a sheet-contacting face or edge of the bracing member that abuts the braced wall of the curved sheet substantially follows the surface of the braced wall of the sheet to provide support to the surface of the curved sheet.

[0062] In some embodiments, the bracing comprises one or more bracing members extending along the braced wall of the curved sheet from one frame section to another. In some embodiments, the bracing comprises 1, 2, 3, 4, 5, 6, 7, 8 or more bracing members extending along the braced wall of the curved sheet from one frame section to another. In some embodiments, the bracing comprises 1, 2, 3, 4, 5, 6, 7, 8 or more bracing members extending along the braced wall of the curved sheet from one frame section to another, including: from the top horizontal frame section to the bottom horizontal frame section; from the top horizontal frame section to an intermediate horizontal frame section; from an intermediate horizontal frame section to the bottom horizontal frame section; from the first upstanding frame section to the second upstanding frame section; from the top horizontal frame section to the first upstanding frame section; from the top horizontal frame section to the second upstanding frame section; from an intermediate horizontal frame section to the first upstanding frame section; from an intermediate horizontal frame section to the second upstanding frame section; from the bottom horizontal frame section to the first upstanding frame section; and / or from the bottom horizontal frame section to the second upstanding frame section.

[0063] Each frame can have comers, including first and second top comers and first and second bottom comers. In some embodiments, the bracing comprises 1, 2, 3, 4, 5, 6, 7, 8 or more bracing members extending along the braced wall of the curved sheet from: a comer of the frame, or near to the comer of the frame, to a diagonally opposite comer of the frame, or near to the diagonally opposite comer of the frame; or, a comer of the frame, or near to the comer of the frame, to one or more of the top horizontal frame section, bottom horizontal frame section, intermediate horizontal frame section, first upstanding frame section and second upstanding frame section.

[0064] In some embodiments, 1 , 2, 3, 4, 5, 6, 7, 8 or more substantially horizontally extending bracing members extend along the braced wall of the curved sheet from the first upstanding framesection to the second upstanding frame section. These bracing members may be in the form of strengthening ribs. In some embodiments, this is the case for both the inner and outer panels.

[0065] In some embodiments, 2 bracing members extend along the braced wall of the curved sheet downwardly from the first upstanding frame section and second upstanding frame section to approximately a midpoint of the bottom or intermediate horizontal frame section, so as to form a V-shape. In some embodiments, this is the case for the outer panel.

[0066] In some embodiments, 2 bracing members extend along the braced wall of the curved sheet downwardly from, or approximately from, two top comers of the frame to approximately a midpoint of the bottom horizontal frame member, so as to form a V-shape. In some embodiments, this is the case for the outer panel.

[0067] In some embodiments, should any two bracing members cross paths / intersect, then one or both of those bracing members can have a cut-out, slit, slot or aperture for receiving the other bracing member, such that the bracing members can substantially follow the surface of, and remain substantially in contact with, the braced wall of the curved sheet.

[0068] As mentioned, non-deformed bracing is used, not subjected to a deformation process. In that context, the bracing members can be prepared using any suitable method including, but not limited to, jig sawing, hand cutting, laser cutting, plasma cutting, oxy-acetylene cutting, CNC router, molding, stamping, punching, turret-punch, matching punch and die sets from materials capable of being joined together and suitable to act as barriers for animals (especially livestock), including plastics, laminates, polycarbonates, nylons, metals, or metal alloys including stainless steel, carbon steel and aluminium. Preferably, the bracing members are prepared / manufactured from a flat sheet or plate. In some embodiments, laser cut metal bracing members are used. Preferably, the bracing has high dimensional accuracy. Preferably, the bracing members have high dimensional accuracy.

[0069] Preferably, the bracing members are made of steel or alloy.

[0070] Each curved sheet can be supported by the bracing members in any suitable way. In some embodiments, mechanical fasteners such as screws, bolts and / or rivets are used to connect the bracing members to the braced wall of the curved sheet. In some embodiments, welding such as spot, laser, stick, MIG, TIG, friction or stir welding, is used to connect the bracing members to the braced wall of the curved sheet. In some embodiments, glue or gluing compounds are used to connect the bracing members to the braced wall of the curved sheet.

[0071] The length of each bracing member will depend on the dimensions of the frame or spacing of the frame sections and the curvature of the braced wall. Typically, bracing members or ribs will be substantially in the shape of a planar arc when viewed in plan and have a radius of between about 0.4 meters to 5.0 meters. Typically, the thickness of each bracing member (ie. thesurface / plane of the bracing member being generally co-planar with part of the braced wall) will be from about 1 mm to about 15 mm, including about 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 or 15 mm. Typically, the depth (ie. the surface / plane of the bracing member extending substantially perpendicularly to the braced wall) of each bracing member will be from about 1 mm to about 75 mm, including about 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 64, 65, 66, 67, 68, 69 or 70 mm. The bracing members may be flush with the frame members or they may extend beyond the extremities of the frame members.

[0072] In some embodiments, the curved inner panel comprises between 1 to 6 (ie. 1, 2, 3, 4, 5 or 6) substantially horizontally extending bracing members extending along the braced wall of the curved sheet from the first upstanding frame section to the second upstanding frame section.

[0073] In some embodiments, the curved outer panel comprises between 1 to 6 (ie. 1, 2, 3, 4, 5 or 6) substantially horizontally extending bracing members extending along the braced wall of the curved sheet from the first upstanding frame section to the second upstanding frame section, as well as 2 bracing members extending along the braced wall of the curved sheet downwardly from two top comers of the frame or downwardly from the frame sections adjacent the two top comers, to approximately a midpoint of the bottom horizontal frame member, so as to form a V- shape.

[0074] Each curved sheet (or section thereof) can be manufactured in any suitable way. In some embodiments, each curved sheet can be cut, punched or stamped from a previously formed conical arc section such as a steel, stainless steel, or aluminium conical section.

[0075] In some embodiments, each curved sheet is cut, punched or stamped from a flat sheet such as a steel, stainless steel, or aluminium sheet, and then shaped as required, eg. a conical arc and optionally planar arc.

[0076] In some embodiments, each curved sheet is elastically deformed, being formed by an elastic deformation process.

[0077] In some embodiments, each curved sheet is elastically deformed, being formed by an elastic deformation process of a flat or planar sheet.

[0078] In some embodiments, if in a flat form, each sheet can have approximately the following dimensions: from about 400 mm x 600 mm to about 3200 mm x 1800 mm.

[0079] In some embodiments, each curved sheet is shaped or formed (preferably elastically deformed) from a flat sheet using a mold,jig or die. The mold ig or die can comprise any suitable material / s, and can be structured and arranged in such a way that produces or generates a curved sheet having the required curvature, eg. a conical arc and / or planar arc. The jig, die or mold cancomprise a single surface, or a series of supports or surfaces that collectively provide a curved shaping surface to form the curved sheet having the required curvature, eg. a conical arc and / or planar arc.

[0080] Preferably, each curved sheet having the curvature of a conical arc and / or planar arc is formed using an elastic deformation process. Preferably, each curved sheet having the curvature of a conical arc and / or planar arc is not formed using a plastic deformation process. Preferably, each curved sheet having the curvature of a conical arc and / or planar arc is not formed using a rolling process utilising rollers.

[0081] In some embodiments, the curved sheeted race unit comprises at least one race bow. In some embodiments, the curved sheeted race unit comprises a first race bow. In some embodiments, the first race bow is connected to the first end of each panel.

[0082] In some embodiments, the curved sheeted race unit comprises a second race bow. In some embodiments, the second race bow is connected to the second end of each panel. Preferably, the curved sheeted race unit comprises the second race bow.

[0083] Preferably, when viewed in plan, the first and second race bows and the planar arc of the outer panel of the unit substantially correlate with the radial lines and circumferential arc of a 15, 30 or 45 degree sector of a circle.

[0084] The first and second race bows can be of any suitable size, shape and construction, and can be made of any suitable material or materials. Each race bow can be of unitary construction or comprise separate pieces / sections / members connected together, including by way of welding, gluing, or / and mechanical fasteners such as lugs, screws, bolts and / or rivets.

[0085] Preferably, the first and second race bows are identical or substantially identical to each other.

[0086] Each race bow can be connected to its respective inner and outer panel ends in any suitable way. In some embodiments, the first race bow comprises fasteners, such as lugs, interconnecting plates, screws, bolts and / or rivets, for connecting to the first end of the inner and outer panels. In some embodiments, the second race bow comprises connectors or fasteners, such as lugs, interconnecting plates, screws, bolts and / or rivets, for connecting to the second end of the inner and outer panels.

[0087] In some embodiments, each race bow comprises an inner panel-mounting region and an outer panel mounting region, each of which is connected to the respective ends of the inner and outer panels. In some embodiments, each inner panel-mounting region and each outer panel mounting region is connected to a respective braced frame, frame or frame section of each panel.

[0088] Each inner panel-mounting region and each outer panel mounting region can comprise a respective upwardly extending race bow leg, extending alongside its respective braced frame end, frame end or upstanding frame section. The upwardly extending race bow legs can be connected to the braced frame ends, frame ends or upwardly extending frame sections using connectors or fasteners, such as lugs, interconnecting plates, screws, bolts and / or rivets. Each upwardly extending race bow leg can be of solid cross-section (eg. solid bar, solid rod, angle iron) or hollow cross-section (eg. tubular). Preferably, each upwardly extending race bow leg is made of steel or alloy, preferably tubular steel or alloy.

[0089] In some embodiments, each race bow comprises a ground-stabilising foot or feet. The ground-stabilising foot or feet can be of any suitable size, shape and construction, and can be made of any suitable material or materials. Preferably, they are made of steel or alloy, preferably tubular steel or alloy.

[0090] In some embodiments, the ground stabilising foot or feet can comprise a groundcontacting foot extending horizontally across the animal walkway, preferably perpendicularly of the planar arc of the animal walkway. In some embodiments, the ground-contacting foot can extend further horizontally to a point outside of the animal walkway, behind the outer panel. In some embodiments, the ground-contacting foot can extend further horizontally to a point outside of the animal walkway, in front of the inner panel. In some embodiments, the ground-contacting foot can extend further horizontally to points outside of the animal walkway, behind the outer panel and in front of the inner panel.

[0091] In some embodiments, the ground-contacting foot is connected to the upwardly extending race bow legs, preferably to the ends of the legs.

[0092] In some embodiments, the ground stabilising foot or feet can further comprise one or more apertures or openings for receiving one or more ground-anchoring stakes or pegs. In some embodiments, the ground-contacting foot can comprise one or more apertures or openings for receiving one or more ground-anchoring stakes or pegs.

[0093] In some embodiments, the ground stabilising foot or feet can further comprise at least one foot support connecting the ground-contacting foot to an inner and / or outer panel mounting region, or race bow leg or legs thereof. In some embodiments, a foot support extends from an end of the ground-contacting foot located behind the outer panel to the outer panel mounting region, or race bow leg thereof.

[0094] In some embodiments, each race bow can comprise an upper stabilising region extending from above the inner panel to above the outer panel. In some embodiments, each race bow can comprise an upper stabilising region extending from the inner panel-mounting region to the outer panel mounting region, or respective upwardly extending race bow legs thereof.

[0095] The upper stabilising region can be of any suitable size, shape and construction, and made of any suitable materials or materials. The upper stabilising region can be of unitary construction or comprise separate connectable pieces / sections / regions.

[0096] In some embodiments the upper stabilising region is arched, curved or arcuate when viewed in end elevation. In some embodiments, the upper stabilising region is arched when viewed in end elevation, generally resembling an inverted U shape, having a first region extending upwardly from the inner panel-mounting region or race bow leg thereof, a second region extending upwardly from the outer panel mounting region or race bow leg thereof, and an arched crosspiece extending above and across the animal walkway between the first and second regions.

[0097] In some embodiments, the upper stabilising region is angular when viewed in end elevation. In some embodiments, the upper stabilising region is angular when viewed in end elevation, having a first region extending upwardly from the inner panel-mounting region or race bow leg thereof, a second region extending upwardly from the outer panel mounting region or race bow leg thereof, and a crosspiece extending above and across the animal walkway between the first and second regions. In some embodiments, the first and second upwardly extending regions extend substantially vertically. In some embodiments, the crosspiece extends substantially horizontally. Preferably, there is a clearance between the height of an animal located within the animal walkway and the crosspiece.

[0098] In some embodiments, the upper stabilising region extends from or is connected to the inner and / or outer panel mounting region, or race bow leg or legs thereof. Preferably, each upper stabilising region extends from its respect race bow legs of the inner and outer panel mounting regions. Preferably, each upper stabilising region is made of steel, preferably tubular steel.

[0099] Preferably, for each race bow, the ground-stabilising foot or feet, the inner and outer panel-mounting regions, and the upper stabilising region extend in substantially the same plane.

[0100] In some embodiments, the first and second race bows, when viewed in end elevation, extend along different radial lines or planes. In some embodiments, these radial lines or planes conveige towards each other at the inner panel as opposed to at the outer panel.

[0101] In some embodiments, the curved sheeted race unit can comprise a barrier located above the inner panel. In some embodiments, the curved sheeted race unit can comprise a barrier located above the outer panel. The barrier can be of any suitable size, shape and construction, and can be made of any suitable material or materials.

[0102] In some embodiments, the barrier is moveable between a raised position and a lowered position relative to the panel (inner and / or outer).

[0103] In some embodiments, the barrier comprises at least one barrier rail extending in a substantially horizontal manner above the inner panel, preferably from one end of the inner panel to the other. In some embodiments, the barrier comprises at least one barrier rail extending in a substantially horizontal manner above the outer panel, preferably from one end of the outer panel to the other. In some embodiments, the at least one barrier rail, when viewed in plan, is substantially in the shape of a planar arc. In some embodiments, the planar arc of the at least one barrier rail and the planar arc of the top of the inner panel, when viewed in plan, coincide with each other, or are substantially concentrically arranged relative to a horizontal plane or ground surface. In some embodiments, the planar arc of the at least one barrier rail and the planar arc of the top of the outer panel, when viewed in plan, coincide with each other, or are substantially concentrically arranged relative to a horizontal plane or ground surface.

[0104] In some embodiments, the barrier comprises 1, 2, 3 or more barrier rails. Preferably, the barrier comprises two barrier rails spaced apart from each other, wherein one is located above the other. Preferably, the planar arc of each barrier rail substantially matches that of the top of the inner panel. Preferably, the planar arc of each barrier rail substantially matches that of the top of the outer panel.

[0105] In some embodiments, especially in the case of two or more barrier rails, the barrier can comprise spacers connected to ends of the barrier rails for holding the barrier rails in position / apart.

[0106] In some embodiments, the barrier can comprise a barrier rail connecting mechanism for holding the at least one barrier rail above the panel (inner and / or outer). The barrier rail connecting mechanism can be of any suitable construction. In some embodiments, the barrier rail connecting mechanism comprises a locking mechanism for locking opposed ends of the at least one barrier rail, or the spacers if two or more barrier rails are used, to other parts or components of the curved sheeted race unit. In some embodiments, the barrier rail connecting mechanism connects the at least one barrier rail or spacers to the race bows and / or panel (inner and / or outer), preferably to the upper stabilising region of each race bow and / or top of the panel (inner and / or outer), braced frame, frame or frame section thereof.

[0107] In some embodiments, the barrier rail connecting mechanism allows for vertical movement of the at least one barrier rail between a raised position and a lowered position relative to the panel (inner and / or outer). This can provide an animal handler with safe and convenient access to an animal located within the animal walkway. In some embodiments, the barrier rail connecting mechanism allows for vertical movement of the at least one barrier rail to be adjusted and fixed in any position at or in between the raised position and lowered position. In some embodiments, the barrier rail connecting mechanism comprises a locking mechanism and sliderails that enable the at least one barrier rail to be slid between the raised position and lowered position. In some embodiments, the barrier rail connecting mechanism comprises a locking mechanism and slide rails that enable the at least one barrier rail to be slid and secured at any position at or in between the raised position and lowered position. In some embodiments, the spacers are adapted to grip the slide rails and the locking mechanism enables the barrier rails to be moved and locked in the desired position. In some embodiments, the locking mechanism comprises connectors, cams, clamps or locking screws for releasably holding the spacers to the slide rails. In some embodiments, each slide rail comprises a lower end connected to the top frame or braced frame of the panel (inner and / or outer) and an upper end connected to the upper stabilising region of a race bow. In some embodiments, the slide rails can be rods, preferably tubular rods, however, they may also be made of material of solid cross-section or folded section.

[0108] Components ofthe barrier can be of solid cross-section (eg. solid bar, solid rod, angle iron) or hollow cross-section (eg. tubular). Preferably, most components the barrier are made of steel, preferably tubular steel or steel sections.

[0109] The curved sheeted race unit can comprise a unit connecting mechanism for connecting one curved sheeted race unit to another. Any suitable connecting mechanism can be used. In some embodiments, the unit connecting mechanism comprises interlocking plates, lugs and / or mechanical fasteners, such as screws, bolts and / or rivets. In some embodiments, the race bow of one unit is connected to the race bow of an adjacent unit. In preferred embodiments, the race bow of a first unit is shared with a second unit, so that the curved panels of the first unit and the curved panels of the second unit are connected to the one and the same single race bow.

[0110] The curved sheeted race unit can comprise an external elevated operator walkway, preferably extending alongside the inner panel. The elevated operator walkway can be of any suitable size, shape and construction, and made of any suitable materials or materials. The elevated operator walkway can be of unitary construction or comprise separate connectable pieces / sections / regions.

[0111] In some embodiments, the elevated operator walkway can comprise an elevated operator walking surface and operator walkway legs extending from the operator walking surface to the ground. In some embodiments, the operator walkway surface, when viewed in plan, is substantially in the shape of a planar arc. In some embodiments, the planar arc of the operator walking surface and the planar arc of the animal walkway, when viewed in plan, are substantially concentrically arranged relative to a ground surface or horizontal plane. In some embodiments, the operator walkway surface extends substantially horizontally.

[0112] In some embodiments, the operator walking surface comprises a series of grill, mesh or grate sections. In some embodiments, the operator walking surface comprises a series of edge-reinforced grills, mesh or grate sections, constructed of any suitable materials including composites, polymers, alloys, and steels and preferably made of alloys or metals such as steel, stainless steel and aluminium.

[0113] In some embodiments, the elevated operator walkway can comprise a connecting mechanism for connection to other parts of the unit, such as to the race bows and / or inner frame. In some embodiments, the elevated operator walkway comprises an inner reinforcing edge and an outer reinforced edge. In some embodiments, the connecting mechanism comprises an inner reinforcing edge connected to the inner panel, such as to the braced frame, frame, frame section / s, bracing and / or bracing member(s). In some embodiments, the connecting mechanism comprises an outer reinforced edge connected to the operator walkway legs.

[0114] In some embodiments, the operator walkway legs extend perpendicularly from the operator walking surface to the ground. Each operator walkway leg can be of solid cross-section (eg. solid bar, solid rod, angle iron) or hollow cross-section (eg. tubular). Preferably, each operator walkway leg is made of alloy, steel, aluminium, or stainless steel, and preferably tubular or angle section. In some embodiments, one or more of the operator walkway legs can comprise an opening for receiving a ground -anchoring peg or stake.

[0115] According to a second aspect of the present invention, there is provided a curved sheeted race comprising at least one curved sheeted race unit according to the first aspect.

[0116] To be clear, the second aspect of the invention can have one or more features as described for other aspects of the present invention.

[0117] Preferably, any two adjacently connected units share one and the same race bow.

[0118] In some embodiments, the curved sheeted race can comprise 2, 3, 4, 5, 6 or more curved sheeted race units connected to each other. In some embodiments, the units are connected such that, when viewed in plan, they form a substantially continuous planar arc-shaped animal walkway. In some embodiments, the planar arc-shaped animal walkway can extend for an arc length corresponding to about 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165,180, 195, 210 or 225 degrees when viewed in plan.

[0119] In some embodiments, the animal walkway can comprise an animal walkway entrance. In some embodiments, the animal walkway can comprise an animal walkway exit.

[0120] In some embodiments, the curved sheeted race can comprise at least one curved sheeted race unit that is modified to have inner and outer panels that are linear / straight or substantially linear / straight when viewed in plan, in which case the curved sheets thereof will be flat instead of curved- ie. a modified unit. In some embodiments, the elevated operator walkway of the modified unit can also be linear / straight or substantially linear / straight when view in plan.

[0121] In some embodiments, the elevated operator walkway can comprise at least one ramp for preferably ramping down to ground level.

[0122] According to a third aspect of the present invention, there is provided a curved panel of a curved sheeted race or a curved sheeted race unit, wherein the curved panel comprises:

[0123] a braced frame that, when viewed in plan, is substantially in the shape of a planar arc, wherein the braced frame comprises non-deformed bracing, not subjected to a deformation process; and

[0124] a curved sheet supported by the braced frame and providing an upwardly extending walkway wall and an upwardly extending braced wall opposite the walkway wall, wherein the non-deformed bracing extends along and is connected to the braced wall of the curved sheet.

[0125] To be clear, the third aspect of the invention can have one or more features as described for the first, second and other aspects of the present invention.

[0126] In some embodiments, the curved sheet comprises the curvature of a conical arc. In some embodiments, the curved sheet further comprises the curvature of a planar arc.

[0127] In some embodiments, the curved sheet is formed by an elastic deformation process, not by a plastic deformation process.

[0128] In some embodiments, the curved sheet is shaped from a flat sheet using a jig, die or mold.

[0129] In some embodiments, the curved sheet comprises an upper section through which the animal cannot see, and a lower section in the form of a mesh.

[0130] According to a fourth aspect of the present invention, there is provided a method of manufacturing a curved panel of a curved sheeted race or a curved sheeted race unit, wherein the curved panel comprises a curved sheet supported by a braced frame and the braced frame comprises a curved frame and non-deformed bracing, not subjected to a deformation process, wherein the method comprises the steps of:

[0131] (i) using a jig, die or mold to form a curved sheet having the required curvature;

[0132] (ii) arranging upon the curved sheet the curved frame as well as the non-deformed bracing prepared to match the curvature of the curved sheet; and

[0133] (iii) connecting the curved frame and non-deformed bracing to the curved sheet so as to form the curved panel.

[0134] To be clear, the fourth aspect of the invention can have one or more features as described for the first, second and other aspects of the present invention.

[0135] In some embodiments, the curved sheet can comprise the curvature of a conical arc.

[0136] In some embodiments, the curved sheet can further comprise the curvature of a planar arc.

[0137] In some embodiments, the jig, die or mold can comprise a single surface, or a series of supports or surfaces that collectively provide a shaping surface to form the curved sheet.

[0138] Preferably, the curved sheet is elastically formed or shaped from a flat or substantially flat sheet, preferably under its own weight.

[0139] In some embodiments, the curved frame is formed or shaped from a flat or substantially flat frame, preferably using a plastic deformation process.

[0140] In some embodiments, the jig, die or mold can comprise clamps for pressing the flat sheet and curved frame against the curved shaping surface.

[0141] In some embodiments, the jig, die or mold can comprise clamps for holding the curved frame in position upon the curved sheet.

[0142] In some embodiments, welding, such as spot, laser, mig, tig, stick or friction stir welding, can be used to weld the curved frame and prepared bracing to the curved sheet. In some embodiments, a plurality of weld seams are used to connect the curved frame and bracing to the curved sheets. In some embodiments, other connection means as described herein (eg. clamps, locking cams, mechanical fasteners and / or glue or gluing compounds) can be used to connect the curved frame and prepared bracing to the curved sheet.

[0143] In some embodiments, the jig, mold or die for shaping the curved sheet of the outer panel can comprise a single surface, or a series of supports or surfaces suitably arranged so as to form a convex-like raised (conical and optionally planar arc) shaping surface.

[0144] In some embodiments, the jig, mold or die for shaping the curved sheet of the inner panel can comprise a single surface, or a series of supports or surfaces suitably arranged so as to form a concave -like (conical and optionally planar arc) shaping surface.

[0145] According to a fifth aspect of the present invention, there is provided a curved sheeted race unit, a curved sheeted race, or a curved panel of a curved sheeted race or a curved sheeted race unit, as described or illustrated, or substantially as described or illustrated herein.

[0146] In some embodiments, the curved sheeted race can comprise at least one sheeted race unit is substantially linear as opposed to being curved (hereafter ‘linear sheeted race unit’). In some embodiments, at least one linear sheeted race unit can be connected end to end to a curved sheeted race unit. In some embodiments, each end of the linear sheeted race unit can be connected to a respective curved sheeted race unit. In some embodiments, two or more linear sheeted race units can be connected end to end and further to at least one curved sheeted race unit.

[0147] The present invention also relates to a linear sheeted race unit and to a sheeted race comprising at least one linear sheeted race unit.

[0148] According to a sixth aspect of the present invention, there is provided a linear sheeted race unit comprising:

[0149] an inner panel that, when viewed in plan, is substantially planar and comprises first and second ends at opposed ends thereof; and

[0150] an outer panel that, when viewed in plan, is substantially planar and comprises first and second ends at opposed ends thereof, wherein each said panel comprises:

[0151] a braced frame that, when viewed in plan, is substantially planar, wherein the braced frame comprises non-deformed bracing, not subjected to a deformation process; and

[0152] a sheet supported by the braced frame and providing an upwardly extending walkway wall and an upwardly extending braced wall opposite the walkway wall, wherein the nondeformed bracing extends along and is connected to the braced wall of the sheet,

[0153] wherein the sheets of or within the braced frames extend upwardly and away from each other to provide an animal walkway between the inner and outer panels that, when viewed in plan, is substantially linear.

[0154] The linear sheeted race unit can comprise one or more features of the curved sheeted race unit described in this specification, except of course that those features will be linear / straight etc as opposed to curved, conical etc. For example, the race bows can be as described for the curved sheeted race unit. For example, the walkway can be linear and substantially V-shaped when viewed in end elevation. For example, the bracing can be substantially linear. For example, the barrier or barrier rails can be substantially linear. For example, the elevated operator walking surface of the curved sheeted race can be substantially linear when viewed in plan. For example, the linear sheeted race unit or curved sheeted race comprising such a linear sheeted race unit can comprise one or more features as illustrated or substantially as illustrated in any one of Figures 10 to 13.

[0155] According to a seventh aspect of the present invention, there is provided a sheeted race comprising at least one linear sheeted race unit according to the sixth aspect.

[0156] In some embodiments, the sheeted race according to the seventh aspect can be linear, or both linear and curved.

[0157] To be clear, the seventh aspect of the invention can have one or more features as described for other aspects of the present invention.

[0158] According to an eighth aspect of the present invention, there is provided a linear sheeted race unit, or a curved sheeted race comprising at least one linear sheeted race unit, as described or illustrated, or substantially as described or illustrated herein.

[0159] The present invention also relates to a sheeted race unit comprising a moveable barrier, enabling access to an animal located within the sheeted race unit. The sheeted race unit can be curved or linear.

[0160] According to a ninth aspect of the present invention, there is provided a sheeted raceunit, comprising:

[0161] (i) an inner panel comprising first and second ends;

[0162] (ii) an outer panel comprising first and second ends, wherein each said panel comprises:

[0163] a braced frame that, when viewed in plan, is substantially planar; and

[0164] a sheet supported by the braced frame and providing an upwardly extending walkway wall and an upwardly extending braced wall opposite the walkway wall, wherein the bracing extends along and is connected to the braced wall of the sheet,

[0165] wherein the sheets of or within the braced frames extend upwardly and away from each other to provide an animal walkway between the inner and outer panels; and

[0166] (iii) a moveable barrier located above the inner panel and / or a moveable barrier located above the outer panel, wherein the or each said moveable barrier is adapted to be raised or lowered relative to the panel and in the lowered position allows access to an animal located within the walkway.

[0167] To be clear, the ninth aspect of the invention can have one or more features as described for the first, second, third, fourth, fifth, sixth, seventh, eighth and other aspects of the present invention.

[0168] In some embodiments, the (or each) barrier comprises at least one barrier rail extending in a substantially horizontal manner above the panel (inner and / or outer), preferably from one end of the panel to the other. In some embodiments, the (or each) at least one barrier rail, when viewed in plan, is substantially in the shape of a planar arc or linear, depending on whether the unit is curved or linear. In some embodiments, the (or each) at least one barrier rail and the top of the panel (inner and / or outer), when viewed in plan, coincide with each other, extend within the same plane or spaced parallel planes, or are substantially concentrically arranged relative to a horizontal plane or ground surface.

[0169] In some embodiments, the (or each) barrier comprises 1, 2, 3 or more barrier rails. Preferably, the (or each) barrier comprises two barrier rails spaced apart from each other, wherein one is located above the other. Preferably, the planar arc of each barrier rail substantially matches that of the top of the inner panel.

[0170] In some embodiments, especially in the case of two or more barrier rails, the (or each) barrier can comprise spacers connected to ends of the barrier rails for holding the barrier rails in position / apart.

[0171] In some embodiments, the (or each) barrier can comprise a barrier rail connecting mechanism for holding the at least one barrier rail above the panel (inner and / or outer), preferably the inner panel. The barrier rail connecting mechanism can be of any suitable construction. Insome embodiments, the barrier rail connecting mechanism comprises a locking mechanism for locking opposed ends of the at least one barrier rail, or the spacers if two or more barrier rails are used, to other parts or components of the sheeted race unit. In some embodiments, the barrier rail connecting mechanism connects the at least one barrier rail or spacers to the race bows and / or panel (inner and / or outer), preferably to the upper stabilising region of each race bow and / or top of the panel (inner and / or outer), braced frame, frame or frame section thereof.

[0172] In some embodiments, the barrier rail connecting mechanism allows for vertical movement of the at least one barrier rail between a raised position and a lowered position, relative to the panel (inner and / or outer). This can provide an animal handler with safe and convenient access to an animal located within the animal walkway. In some embodiments, the barrier rail connecting mechanism allows for vertical movement of the at least one barrier rail to be adjusted and fixed in any position at or in between the raised position and lowered position. In some embodiments, the barrier rail connecting mechanism comprises a locking mechanism and slide rails that enable the at least one barrier rail to be slid between the raised position and lowered position. In some embodiments, the barrier rail connecting mechanism comprises a locking mechanism and slide rails that enable the at least one barrier rail to be slid and secured at any position at or in between the raised position and lowered position. In some embodiments, the spacers are adapted to grip the slide rails and the locking mechanism enables the barrier rails to be moved and locked in the desired position. In some embodiments, the locking mechanism comprises connectors, cams, clamps or locking screws for releasably holding the spacers to the slide rails. In some embodiments, each slide rail comprises a lower end connected to the top frame or braced frame of the panel (inner and / or outer) and an upper end connected to the upper stabilising region of a race bow. In some embodiments, the slide rails can be rods, preferably tubular rods, however, they may also be made of material of solid cross-section or folded section.

[0173] According to a tenth aspect of the present invention, there is provided a sheeted race, preferably a curved sheeted race, comprising at least one sheeted race unit according to the ninth aspect.

[0174] 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. One or more features of a product (eg. curved panel, unit or race) can be features of a process or method, and vice-versa.

[0175] Preferred embodiments of the invention are defined in the numbered paragraphs 1-20 below.

[0176] 1. A curved sheeted race unit of a curved sheeted race, comprising:

[0177] a curved inner panel that, when viewed in plan, is substantially in the shape of a planararc and comprises first and second ends at opposed ends of the planar arc; and

[0178] a curved outer panel that, when viewed in plan, is substantially in the shape of a planar arc and comprises first and second ends at opposed ends of the planar arc, wherein each said panel comprises:

[0179] a braced frame that, when viewed in plan, is substantially in the shape of a planar arc, wherein the braced frame comprises non-deformed bracing, not subjected to a deformation process; and

[0180] a curved sheet supported by the braced frame and providing an upwardly extending walkway wall and an upwardly extending braced wall opposite the walkway wall, wherein the non-deformed bracing extends along and is connected to the braced wall of the curved sheet,

[0181] wherein the curved sheets within the braced frames extend upwardly and away from each other to provide an animal walkway between the inner and outer panels that, when viewed in plan, is substantially in the shape of a planar arc.

[0182] 2. The curved sheeted race unit of paragraph 1, wherein:

[0183] the curved sheet or at least one section thereof has the curvature of a conical arc;

[0184] the curved sheet or at least one section thereof has the curvature of a planar arc; or,

[0185] the curved sheet or at least one section thereof has the curvature of both a conical arc and a planar arc.

[0186] 3. The curved sheeted race unit of paragraph 2, wherein the bracing is non-deformed and shaped, prepared or manufactured to match the conical arc and / or planar arc curvature of the curved sheet.

[0187] 4. The curved sheeted race unit of any one of the preceding paragraphs, wherein the bracing comprises one or more bracing members extending along the braced wall of the curved sheet.

[0188] 5. The curved sheeted race unit of paragraph 4, wherein the bracing comprises two or more bracing members that cross paths or intersect, and the two or more bracing members comprise a cut-out, slit, slot or aperture such that the bracing members substantially follow the surface of, and remain substantially in contact with, the braced wall of the curved sheet.

[0189] 6. The curved sheeted race unit of paragraph 4 or paragraph 5, wherein the bracing or bracing members are shaped, prepared or manufactured from a flat sheet or plate, preferably from steel or alloy.

[0190] 7. The curved sheeted race unit of paragraph 4, 5 or 6, wherein the bracing or bracing members are laser cut from metal, preferably steel or alloy.

[0191] 8. The curved sheeted race unit of paragraph 4, 5, 6 or 7, wherein the bracing or bracing members have high dimensional accuracy.

[0192] 9. The curved sheeted race unit of any one of the preceding paragraphs, wherein the curved sheet is elastically deformed, being formed by an elastic deformation process from a flat or planar sheet, preferably a steel, stainless steel, or aluminium sheet.

[0193] 10. The curved sheeted race unit of paragraph 9, wherein the curved sheet is elastically deformed using a mold,jig or die.

[0194] 11. The curved sheeted race unit of any one of the preceding paragraphs, wherein the curved sheet is not formed using a rolling process.

[0195] 12. The curved sheeted race unit of any one of the preceding paragraphs, wherein the curved sheeted race unit comprises at least one race bow, preferably a race bow connected to each end of the inner panel and outer panel.

[0196] 13. The curved sheeted race unit of any one of the preceding paragraphs, wherein the curved sheeted race unit comprises a moveable barrier located above a said panel, preferably the inner panel, and moveable between a raised position and a lowered position relative to the panel.

[0197] 14. A linear sheeted race unit comprising:

[0198] an inner panel that, when viewed in plan, is substantially planar and comprises first and second ends at opposed ends thereof; and

[0199] an outer panel that, when viewed in plan, is substantially planar and comprises first and second ends at opposed ends thereof, wherein each said panel comprises:

[0200] a braced frame that, when viewed in plan, is substantially planar, wherein the braced frame comprises non-deformed bracing, not subjected to a deformation process; and

[0201] a sheet supported by the braced frame and providing an upwardly extending walkway wall and an upwardly extending braced wall opposite the walkway wall, wherein the non-deformed bracing extends along and is connected to the braced wall of the sheet,

[0202] wherein the sheets of or within the braced frames extend upwardly and away from each other to provide an animal walkway between the inner and outer panels that, when viewed in plan, is substantially linear.

[0203] 15. A sheeted race unit, comprising:

[0204] (i) an inner panel comprising first and second ends;

[0205] (ii) an outer panel comprising first and second ends, wherein each said panel comprises:

[0206] a braced frame that, when viewed in plan, is substantially planar; and

[0207] a sheet supported by the braced frame and providing an upwardly extending walkway wall and an upwardly extending braced wall opposite the walkway wall, wherein the bracing extends along and is connected to the braced wall of the sheet,

[0208] wherein the sheets of or within the braced frames extend upwardly and away fromeach other to provide an animal walkway between the inner and outer panels; and

[0209] (iii) a moveable barrier located above the inner panel and / or a moveable barrier located above the outer panel, wherein the or each said moveable barrier is adapted to be raised or lowered relative to the panel and in the lowered position allows access to an animal located within the walkway.

[0210] 16. The sheeted race unit of paragraph 15, wherein:

[0211] the sheeted race unit is curved; or

[0212] the sheeted race unit is as defined in any one of paragraphs 1 to 12.

[0213] 17. A sheeted race comprising:

[0214] at least one sheeted race unit as defined in any one of the preceding paragraphs;

[0215] two or more sheeted race units as defined in any one of the preceding paragraphs connected to together, wherein preferably any two adjacently connected sheeted race units share one and the same race bow;

[0216] four curved sheeted race units as defined in any one of paragraphs 1 to 13 connected to together, wherein preferably any two adjacently connected sheeted race units share one and the same race bow;

[0217] four curved sheeted race units as defined in any one of paragraphs 1 to 13 connected to together and one linear sheeted race unit as defined in paragraph 14 connected to a said curved sheeted race unit, wherein preferably any two adjacently connected sheeted race units share one and the same race bow; or

[0218] four curved sheeted race units as defined in any one of paragraphs 1 to 13 connected to together and one linear sheeted race unit as defined in paragraph 14 connected to a said curved sheeted race unit, wherein preferably any two adjacently connected sheeted race units share one and the same race bow, and wherein each said sheeted race unit further comprise an external elevated operator walkway extending alongside the inner panel of each said sheeted race unit.

[0219] 18. A curved panel of a curved sheeted race or a curved sheeted race unit, wherein the curved panel comprises:

[0220] a braced frame that, when viewed in plan, is substantially in the shape of a planar arc, wherein the braced frame comprises non-deformed bracing, not subjected to a deformation process; and

[0221] a curved sheet supported by the braced frame and providing an upwardly extending walkway wall and an upwardly extending braced wall opposite the walkway wall, wherein the non-deformed bracing extends along and is connected to the braced wall of the curved sheet.

[0222] 19. A method of manufacturing a curved panel of a curved sheeted race or a curved sheeted race unit, wherein the curved panel comprises a curved sheet supported by a braced frameand the braced frame comprises a curved frame and non-deformed bracing, not subjected to a deformation process, wherein the method comprises the steps of:

[0223] (i) using a jig, die or mold to form a curved sheet having the required curvature;

[0224] (ii) arranging upon the curved sheet the curved frame as well as the non-deformed bracing prepared to match the curvature of the curved sheet; and

[0225] (iii) connecting the curved frame and non-deformed bracing to the curved sheet so as to form the curved panel.

[0226] 20. A curved sheeted race unit, a curved sheeted race, a curved panel of a curved sheeted race or a curved sheeted race unit, a linear sheeted race unit, or a sheeted race comprising at least one linear sheeted race unit, as described or illustrated, or substantially as described or illustrated herein.

[0227] Preferred features, embodiments and variations of the invention may be discerned from the following Description of Embodiments which provides sufficient information for those skilled in the art to perform the invention. The Description of Embodiments is not to be regarded as limiting the scope of the preceding Description of the Invention in any way.

[0228] Brief Description of the Figures

[0229] Figure 1 is a front partly detailed isometric view of a curved sheeted race unit of a curved sheeted race, according to an embodiment of the invention.

[0230] Figure 2 is a top rear perspective view of the curved sheeted race unit of Figure 1.

[0231] Figure 3 is a front elevation view of the curved sheeted race unit of Figure 1.

[0232] Figure 4 is a top plan view of the curved sheeted race unit of Figure 1.

[0233] Figure 5 is a first end elevation view of the curved sheeted race unit of Figure 1.

[0234] Figure 6 is a second end elevation view of the curved sheeted race unit of Figure 1.

[0235] Figure 7 is a rear elevation view of the curved sheeted race unit of Figure 1.

[0236] Figure 8 (A) is front isometric view of a curved sheeted race unit of a curved sheeted race and (B) is a rear isometric view, according to another embodiment of the invention.

[0237] Figure 9 shows a race bow of the curved sheeted race unit of Figure 1, wherein (A) is a side elevation view, (B) is a front elevation view, (C) is a side perspective view, and (D) is a top plan view.

[0238] Figure 10 is a front perspective view of a curved sheeted race comprising the curved sheeted race unit of Figure 1, according to an embodiment of the invention.

[0239] Figure 11 is the same as Figure 10 but further comprising an external raised operator walkway, according to an embodiment of the invention.

[0240] Figure 12 is a top plan view of the curved sheeted race shown in Figure 11.

[0241] Figure 13 is a rear perspective view of the curved sheeted race shown in Figure 11.

[0242] Figure 14 shows an inner panel of a curved sheeted race unit according to another embodiment of the invention, wherein (A) is a front isometric view, (B) is a rear isometric view, (C) is a bottom plan view, (D) is a front elevation view, (E) is a top plan view, and (F) is a side elevation view.

[0243] Figure 15 shows an outer panel of a curved sheeted race unit according to another embodiment of the invention, wherein (A) is a front isometric view, (B) is a rear isometric view, (C) is a top plan view, (D) is a front elevation view, (E) is a bottom plan view, and (F) is a side elevation view.

[0244] Figure 16 shows an inner panel of a curved sheeted race unit according to another embodiment of the invention, wherein (A) is a front isometric view, and (B) is a rear isometric view, (C).

[0245] Figure 17 shows an outer panel of a curved sheeted race unit according to another embodiment of the invention, wherein (A) is a front isometric view, and (B) is a rear isometric view.

[0246] Figure 18 shows an inner panel of a curved sheeted race unit according to another embodiment of the invention, wherein (A) is a front isometric view, and (B) is a rear isometric view, (C).

[0247] Figure 19 shows an outer panel of a curved sheeted race unit according to another embodiment of the invention, wherein (A) is a front isometric view, and (B) is a rear isometric view.

[0248] Figure 20 is a top perspective view of a jig for forming an outer panel of the curved sheeted race unit of Figure 1, according to an embodiment of the invention.

[0249] Figure 21 shows a sheet of an outer panel of a curved sheeted race unit being shaped on the jig of Figure 20, and further showing a frame of an outer panel placed upon the curved sheet, according to an embodiment of the invention.

[0250] Figure 22 shows how the curved sheet, curved frame and non-deformed bracing of an outer panel are arranged on the jig of Figure 20, prior to being welded together, according to an embodiment of the invention.

[0251] Description of Embodiments

[0252] In the figures, like reference numerals refer to like features.

[0253] Referring first to Figures 1 to 7, there is shown a curved sheeted race unit 10 of a curved sheeted race 100. The curved sheeted race 100 is shown in Figures 10 to 13.

[0254] The unit 10 includes a curved inner panel 2, a curved outer panel 3, a first race bow 4, a second race bow 5, and a barrier 6. As seen in Figures 11 to 13, the unit 10 can also have an external raised operator walkway 7.

[0255] The inner panel 2 has first 20 and second ends 21, atop 22 and abottom 23. Likewise, the outer panel 3 has first 30 and second ends 31, a top 32 and a bottom 33.

[0256] The inner panel 2, when viewed in plan as seen in Figure 4, is in the shape of a planar arc and comprises the first 20 and second ends 21 at opposed ends of the planar arc. Likewise, the outer panel 3, when viewed in plan, is in the shape of a planar arc and comprises the first 30 and second ends 31 at opposed ends of the planar arc. The first race bow 4 is connected to the first end 20, 30 of each panel 2, 3 and the second race bow 5 is connected to the second end 21, 31 of each panel 2, 3.

[0257] The inner panel 2 has a braced frame 24 that, when viewed in plan, is in the shape of a planar arc, as seen in Figure 2 or 4. The inner panel 2 has a curved sheet 25 having the curvature of a conical arc supported by the braced frame 24 that provides an upwardly extending walkway wall 250 and an upwardly extending braced wall 251 opposite the walkway wall 250.

[0258] The outer panel 3 has a braced frame 34 that, when viewed in plan, is in the shape of a planar arc, as seen in Figure 4. The outer panel 3 has a curved sheet 35 having the curvature of a conical arc supported by the braced frame 34 that provides an upwardly extending walkway wall 350 and an upwardly extending braced wall 351 opposite the walkway wall 350.

[0259] The upwardly extending walkway walls 250, 350 of the inner 2 and outer panels 3 face each other. The curved sheets 25, 35 extend upwardly and away from each other to provide a walkway 8 for an animal between the inner 2 and outer panels 3 that, when viewed in plan, is in the shape of a planar arc (see Figure 4). The animal walkway 8 is substantially V-shaped when view in end elevation, as seen in Figures 1, 5 and 6.

[0260] The planar arc of the inner panel 2 is shorter than the planar arc of the outer panel 3 (ie. it has a smaller radius), such that the animal walkway 8 is in the shape of a planar arc when viewed in plan. The planar arcs of the inner panel 2, walkway 8 and outer panel 3 are concentrically arranged relative to the ground surface when viewed in plan, as seen in Figure 4.

[0261] The first ends 20, 30 of the inner 2 and outer panels 3 extend along the same radial plane, as seen in Figure 4. The second ends 21, 31 of the inner 2 and outer panels 3 extend along the same radial plane. The first 20 and second ends 21 of the inner panel 2 extend upwardly, and the first 30 and second ends 31 of the outer panel 3 extend upwardly, as seen in Figures 5 and 6.

[0262] As seen in Figures 1 and 3, the braced frame 24 of the inner panel 2 has a top 240, bottom 241, first end 242 and second end 243. The top 240 and bottom 241 of the braced frame 24, when viewed in plan, are each in the shape of a planar arc and are concentrically arranged relative to the ground surface. Likewise, as seen in Figure 7, the braced frame 34 of the outer panel 3 has atop 340, bottom 341, first end 342 and second end 343. The top 340 and bottom 341of the braced frame 34, when viewed in plan, are each in the shape of a planar arc and are concentrically arranged relative to the ground surface.

[0263] The first 242 and second ends 243 of the braced frame 24 of the inner panel 2 extend upwardly. Likewise, the first 342 and second ends 343 of the braced frame 34 of the outer panel 3 extend upwardly.

[0264] The braced frame 24 of the inner panel 2 has a frame 244 that frames the braced wall 251 of the curved sheet 25. The frame has a top 240, bottom 241, first end 242 and second end 243. The top 240 and bottom 241 of the frame 244, when viewed in plan, are each in the shape of a horizontally extending planar arc and are concentrically arranged relative to the ground surface. Likewise, the braced frame 34 of the outer panel 3 has a frame 344 that frames the braced wall 351 of the curved sheet 35. The frame 344 has a top 340, bottom 341, first end 342 and second end 343. The top 340 and bottom 341 of the frame 344, when viewed in plan, are each in the shape of a horizontally extending planar arc and are concentrically arranged relative to the ground surface.

[0265] Each curved sheet 25, 35 is cut and shaped from a flat sheet. The walkway wall 250, 350 of each curved sheet 25, 35 is smooth so as to not injure an animal moving through the animal walkway 8.

[0266] As seen in Figure 1, the braced wall 251 of the curved sheet 25 of the inner panel 2 has atop edge 240, bottom edge 241, first end edge 242 and second end edge 243. The frame 244 has a top horizontal frame section 245 extending horizontally along the top edge 240 of the braced wall 251. The frame 244 has a bottom horizontal frame section 246 extending horizontally along the bottom edge 241 of the braced wall 251. The top horizontal frame section 245 and bottom horizontal frame section 246, when viewed in top plan, are each in the shape of a planar arc, concentrically arranged relative to the ground surface. The frame 244 has a first upstanding frame section 247 extending along the first end edge 242 of the braced wall 251 and a second upstanding frame section 248 extending along the second end edge 243 of the braced wall 251. The upwardly extending frame sections 247, 248 are substantially linear / straight when viewed in end elevation. The frame sections 245, 246, 247, 248 are made of tubular steel. Welding is used to connect the frames 244 / frame sections 245, 246, 247, 248 to the braced wall 251 of the curved sheet 25.

[0267] As seen in Figure 7, the braced wall 351 of the curved sheet 35 of the outer panel 3 has atop edge 340, bottom edge 341, first end edge 342 and second end edge 343. The frame 344 has atop horizontal frame section 345 extending horizontally along the top edge 340 of the braced wall 351. The frame 344 has a bottom horizontal frame section 346 extending horizontally along the bottom edge 341 of the braced wall 351. The top horizontal frame section 345 and bottom horizontal frame sections 346, when viewed in plan, are each in the shape of a planar arc,concentrically arranged. The frame 344 has a first upstanding frame section 347 extending along the first end edge 342 of the braced wall 351 and a second upstanding frame section 348 extending along the second end edge 343 of the braced wall 351. The upwardly extending frame sections 347, 348 are substantially linear / straight when viewed in end elevation. The frame sections 345, 346, 347, 348 are made of tubular steel. Welding is used to connect the frame 344 / frame sections345, 346, 347, 348 to the braced wall 351 of the curved sheet 35.

[0268] As seen in Figure 1, the braced frame 24 of the inner panel 2 has bracing 26 comprising bracing members that extend along the braced wall 251 of the curved sheet 25 within the frame 244 and are connected to the frame 244. The curved inner panel 2 comprises three horizontally extending bracing members 260, 261, 262 (ribs or webbing) extending along the braced wall 251 from the first upstanding frame section 247 to the second upstanding frame section 248.

[0269] As seen in Figure 7, the braced frame 34 of the outer panel 3 has bracing 36 comprising bracing members that extend along the braced wall 351 of the curved sheet 35 within the frame 344 and are connected to the frame 344. The curved outer panel 3 has three horizontally extending bracing members 360, 361, 362 (ribs or webbing) extending along the braced wall 351 from the first upstanding frame section 347 to the second upstanding frame section 348, as well as two bracing members 363, 364 extending along the braced wall 351 downwardly from those frame sections 347, 348, to approximately a midpoint of the bottom horizontal frame member346, so as to form a V-shape.

[0270] Where two bracing members cross paths / intersect 365 (only intersections for 362 and 364, and 361 and 364 are illustrated in Figure 7), then both of those bracing members have a cut-out / slit for receiving the other bracing member, such that the bracing members can substantially remain in contact with the braced wall 351 of the curved sheet 35.

[0271] All bracing members 26, 36 are cut from a flat sheet or plate. That is, the bracing / bracing members 26, 36 are non-deformed, not subjected to a deformation process.

[0272] Welding is used to connect the bracing members 26, 36 to the respective braced wall 251, 351 of the curved sheet 25, 35.

[0273] As seen in Figure 8 (A), according to another embodiment, the inner panel 2A can have different bracing 26A1-6 from that shown in the other Figures. In this embodiment, the curved inner panel 2A comprises six horizontally extending bracing members 26A1-6 (ribs). As seen in Figure 8 (B), according to another embodiment, the outer panel 3A can have different bracing from that shown in the other Figures. In this embodiment, the curved outer panel 3A comprises six horizontally extending bracing members 36A1-6 (ribs), rather than three, as well as bracing members 363A and 364A.

[0274] As seen in Figure 14, according to another embodiment, the inner panel 2B can have an overall shape that is different from that shown in the other Figures. In this embodiment, the inner panel 2B has first 20B and second ends 21B, a top 22B and a bottom 23B.

[0275] The inner panel 2B, when viewed in plan as seen in Figure 14 (C) and (E) is in the shape of a planar arc and comprises the first 20B and second ends 2 IB at opposed ends of the planar arc.

[0276] The inner panel 2B has a braced frame 24B that comprises an upper braced frame portion 24B1 and a lower braced frame portion 24B2. The inner panel 2B has two curved sheet sections. An upper curved sheet section 25B1 has the curvature of a conical arc and is supported by the upper braced frame portion 24B 1. A lower curved sheet section 25B2 has the curvature of a planar arc and is supported by the lower braced frame portion 24B2.

[0277] In addition to the frame of the braced frame 24B having a top horizontal frame section 245B and a bottom horizontal frame section 246B as described for other embodiments, it also has an intermediate horizontal frame section 249B.

[0278] The curved inner panel 2B has three horizontally extending bracing members 26B1- 3 (ribs). The curved sheets 25B1, 25B2 provide an upwardly extending walkway wall 250B and an upwardly extending braced wall 25 IB opposite the walkway wall 250B.

[0279] The first 20B and second ends 2 IB are connected to respective race bows 4, 5 (not shown) that are shaped in accordance with the non-linear (bent) ends 20B, 2 IB of the inner panel 2B, but otherwise are substantially identical to the race bows 4, 5 of Figure 9.

[0280] Figure 16 shows an inner panel 2C like inner panel 2B of Figure 14 except that it comprises a lower curved sheet section 25C2 in the form of a mesh, according to another embodiment of the present invention.

[0281] Figure 18 shows an inner panel 2D similar to inner panel 2B of Figure 14 except that it comprises upper 25D 1 and lower 25D2 curved sheet sections both having the curvature of a conical arc, according to another embodiment of the present invention. Also, the lower curved sheet section 25D2 in the form of a mesh.

[0282] As seen in Figure 15, according to another embodiment, the outer panel 3B can have an overall shape that is different from that shown in the other Figures. In this embodiment, the outer panel 3B has first 30B and second ends 3 IB, a top 32B and a bottom 33B.

[0283] The outer panel 3B, when viewed in plan as seen in Figure 15 (C) and (E) is in the shape of a planar arc and comprises the first 30B and second ends 3 IB at opposed ends of the planar arc.

[0284] The outer panel 3B has a braced frame 34B that comprises an upper braced frame portion 34B1 and a lower braced frame portion 34B2. The outer panel 3B has two curved sheetsections. An upper curved sheet section 35B1 has the curvature of a conical arc and is supported by the upper braced frame portion 34B 1. A lower curved sheet section 35B2 has the curvature of a planar arc and is supported by the lower braced frame portion 34B2.

[0285] In addition to the frame of the braced frame 34B having a top horizontal frame section 345B and a bottom horizontal frame section 346B as described for other embodiments, it also has an intermediate horizontal frame section 349B.

[0286] The curved outer panel 3B has three horizontally extending bracing members 36B1- 3 (ribs) as well as two bracing members 363B, 364B which form a V-shape.

[0287] The curved sheet sections 35B1, 35B2 provide an upwardly extending walkway wall 350B and an upwardly extending braced wall 35 IB opposite the walkway wall 350B.

[0288] The first 30B and second ends 3 IB are connected to respective race bows 4, 5 (not shown) that are shaped in accordance with the non-linear (bent) ends 30B, 3 IB of the outer panel 3B, but otherwise are identical to the race bows 4, 5 of Figure 9.

[0289] Figure 17 shows an outer panel 3C like outer panel 3B of Figure 15 except that it comprises a lower curved sheet section 35C2 in the form of a mesh, according to another embodiment of the present invention.

[0290] Figure 19 shows an outer panel 3D similar to outer panel 3B of Figure 15 except that it comprises upper 35D1 and lower 35D2 curved sheet sections both having the curvature of a conical arc, according to another embodiment of the present invention. Also, the lower curved sheet section 35D2 in the form of a mesh.

[0291] Race bows 4 and 5 are identical to each other. The first race bow 4 has fasteners (eg. bolts) for connecting to the first end 20, 30 of the inner 2 and outer panels 3. Likewise, the second race bow 5 has fasteners (eg. bolts) for connecting to the second end 21, 31 of the inner 2 and outer panels 3.

[0292] As seen in Figure 9, the first race bow 4 has an inner panel-mounting region 40 and an outer panel mounting region 41, each of which is connected to the respective frame 244, 344 of the inner 2 and outer panels 3. The inner panel-mounting region 40 and the outer panel mounting region 41 each have a respective upwardly extending race bow leg 400, 401, extending alongside its respective frame end 247, 347, as seen in Figure 1. The upwardly extending race bow legs 400, 401 are connected to the frame ends 247, 347 using fasteners (eg. bolts).

[0293] Likewise, the second race bow 5 has an inner panel-mounting region 50 and an outer panel mounting region 51, each of which is connected to the respective frame 244, 344 of the inner 2 and outer panels 3. The inner panel-mounting region 50 and the outer panel mounting region 51 each have a respective upwardly extending race bow leg 500, 501, extending alongsideits respective frame end 248, 348, as seen in Figure 1. The upwardly extending race bow legs 500, 501 are connected to the frame ends 248, 348 using fasteners (eg. bolts).

[0294] The first race bow 4 has a ground-stabilising foot 42 having a ground-contacting foot 420 extending horizontally across the walkway 8, perpendicularly of the planar arc of the animal walkway 8, as seen in Figure 2. The ground-contacting foot 420 is connected to the upwardly extending race bow legs 400, 401. The ground -contacting foot 420 has openings 421 for receiving ground-anchoring stakes orpegs 422, as seen in Figures 4, 9, 10, 11 and 13. The ground stabilising foot 42 has a foot support 423 connecting the ground-contacting foot 420 to the race bow leg 401 of the outer panel mounting region 41.

[0295] Likewise, the second race bow 5 has a ground-stabilising foot 52 having a groundcontacting foot 520 extending horizontally across the animal walkway 8, perpendicularly of the planar arc of the animal walkway 8. The ground-contacting foot 520 is connected to the upwardly extending race bow legs 500, 501. The ground-contacting foot 520 has openings 521 for receiving ground stakes or pegs 522, as seen in Figure 10. The ground stabilising foot 520 has a foot support 523 connecting the ground-contacting foot 520 to the race bow leg 501 of the outer panel mounting region 51.

[0296] The first race bow 4 has an upper stabilising region 43 extending from the race bow legs 400, 401 of the inner and outer panel mounting regions 40, 41. The upper stabilising region 43 is angular when viewed in end elevation, having a first upwardly extending region 430, a second upwardly extending region 431, and a crosspiece extending 432 above and across the walkway 8 between the first and second regions 430, 431. The first and second upwardly extending regions 430, 431 extend vertically, and the crosspiece 432 extends horizontally.

[0297] Likewise, the second race bow 5 has an upper stabilising region 53 extending from the race bow legs 500, 501 of the inner and outer panel mounting regions 50, 51. The upper stabilising region 53 is angular when viewed in end elevation, having a first upwardly extending region 530, a second upwardly extending region 531, and a crosspiece 532 extending above and across the animal walkway 8 between the first and second regions 530, 531.

[0298] For each race bow 4, 5, the ground-stabilising foot 42, 52, the inner and outer panelmounting regions 40, 41, 50, 51, and the upper stabilising region 43, 53 extend in substantially the same plane. The first and second race bows 4, 5, when viewed in end elevation, extend along different radial lines or planes, and these radial lines or planes converge towards each other at the inner panel 2 as opposed to at the outer panel 3.

[0299] The ground-stabilising feet 42, 52, the inner and outer panel-mounting regions 40, 41, 50, 51, and the upper stabilising regions 43, 53 of the race bows 4, 5 are made of tubular steel.

[0300] As seen in Figure 1, the barrier 6 of the curved sheeted race unit 10 is located above the inner panel 2. The barrier 6 has two spaced apart barrier rails 60, 61. Each has a planar arc that matches the planar arc of the top 22 of the inner panel 2, as seen in Figure 6. The barrier 6 has positioning spacers 62, 63 connected to ends of the barrier rails 60, 61.

[0301] The barrier 6 has a barrier rail connecting mechanism that allows for vertical movement of the barrier rails 60, 61 between a raised position and a lowered position. This can provide an animal handler with access to an animal located within the animal walkway 8.

[0302] The barrier rail connecting mechanism has locking mechanisms 64 and slide rails 65 that enable the barrier rails 60, 61 to be slid between the raised and lowered position, as best seen in Figure 3. The spacers 62, 63 are adapted to grip the slide rails 65 and the locking mechanisms 64 enable the barrier rails 60, 61 to be moved and locked at the desired positions. The locking mechanisms 64 comprise clamps or locking screws for releasably holding the spacers 62, 63 to the slide rails 65. Each slide rail 65 has a lower end connected to the top 240 of the frame 244 of the inner panel 2 and an upper end connected to the upper stabilising region 43, 53 of a respective race bow 4, 5.

[0303] The barrier rails 60, 61, spacers 62, 63 and slide rails 65 are made of tubular steel.

[0304] Referring now to Figures 11-13, the curved sheeted race unit lOa-d can have an elevated operator walkway 7 extending alongside the inner panel 2.

[0305] The elevated operator walkway 7 has an elevated walking surface 70 and walkway legs 71 (only some of which have been labelled) extending from the walking surface 70 to the ground. The walkway surface 70, when viewed in plan, is in the shape of a planar arc, as seen in Figure 12. The planar arc of the walking surface 70 and the planar arc of the animal walkway 8, when viewed in plan, are concentrically arranged.

[0306] The walking surface 70 is the form of an edge-reinforced 72, 73 steel grate 74. One of those reinforcing edges 72 is bolted to a rib / bracing member 261 of the braced frame 24 of the inner panel 2 using brackets 720 (only some of which have been labelled in Figure 11). The other of those reinforced edges 73 is connected to the walkway legs 71.

[0307] The walkway legs 71 extend perpendicularly of the walking surface 70 to the ground and are made of tubular steel. Each walkway leg 71 has an opening 710 for receiving a groundanchoring peg or stake 711 (only some of which have been labelled in Figure 11).

[0308] The curved sheeted race unit 10 has a unit connecting mechanism for connecting one curved sheeted race unit 10a to another 10b, 10c, lOd. The unit connecting mechanism comprises metal fasteners, such as bolts, for connecting a shared race bow (4 or 5) between adjacent units 10a, 10b, 10c, lOd as seen in Figures 11 to 13.

[0309] Referring now to Figures 11 to 13, these show different embodiments of a curved sheeted race 100 incorporating the units 10a, 10b, 10c, lOd of Figures 1 to 7. The embodiment of Figure 10 lacks an external elevated operator walkway 7.

[0310] Each curved sheeted race 100 embodiment incorporates four units 10a, 10b, 10c, lOd connected together in tandem to form a semi-circular walkway (when viewed in plan).

[0311] Each race embodiment 100 also has a terminal modified unit 11 that is not arc-shaped when viewed in plan. That is, its inner (‘2 linear’) and outer panels (‘3 linear’), walkway (‘8 linear’), barrier (‘6 linear’), “curved” sheets (‘25 linear’ and ‘35 linear’) and elevated walkway (‘7 linear’), if present, are linear when viewed in plan, as seen in Figure 12. Apart from the arcshape / curvature being absent and barrier (‘6 linear’) differing, the modified unit 11 is otherwise substantially identical to the other units 10.

[0312] The curved sheeted race 100 embodiment shown in Figures 11 to 13 has an elevated walkway 7 that also includes a ramp 75 for ramping down to ground level or just above ground level.

[0313] Each race embodiment 100 also has a race entrance 12 connected to a terminal curved sheeted race unit lOd. As can be seen in Figure 10, the race entrance 12 includes an inner entrance panel 120 and an outer entrance panel 121. Each of those panels 120, 121 has a braced frame 122, 123 supporting a curved sheet 124, 125. Each braced frame 122, 123 is connected to the second race bow 5 with bolts. The race entrance 12 has a barrier 126 located above the inner entrance panel 120 that is fixed in position. As can be seen in Figure 12, each of those curved sheets 124, 125 is shaped to provide the walkway 8 with a wider entrance 80 for animals.

[0314] In use, four units 10a, 10b, 10c, lOd are connected in tandem to provide an animal walkway 8 of the required length, and then the units 10 are secured to the ground using groundanchoring stakes or pegs. Animals can enter the animal walkway 8 via the race entrance 80. A handler can access animals located within the animal walkway 8 via the external raised operator walkway 7 and by lowering the barrier 6.

[0315] Referring now to Figure 20, there is shown a j ig 15 for manufacturing the curved outer panel 3A of the curved sheeted race unit 10 of Figure 8 (B). The jig 15 has a raised surface 17 having the curvature of a conical arc. The jig 15 also has positioning guides 18 for correctly positioning outer panel 3 frame sections 345A, 346A, 347A and 348A.

[0316] Figures 21 and 22 show how the outer curved panel 3 A is assembled and shaped using the jig 15. First, the sheet 35A is cut into the required flat / planar shape and then placed upon the jig 15. The weight of the sheet 35A causes the sheet 35 A to adopt the required conical arc curvature (elastic deformation). Curved (elastically deformed) frame sections 345A, 346A, 347A, 348A ofthe steel frame 344A are then arranged onto the sheet 35A with the help of the positioning guides 18.

[0317] Non-deformed bracing members 36Ato 36F, 363A, 364A are cut from a sheet or plate to the required (arcuate) dimensions and then arranged onto the sheet 35A. Bracing member positioning guides 19, having slit cut outs, help arrange the bracing members 36A to 36F, 363A, 364A accurately and consistently upon the sheet 35 A for welding. Each bracing member 36A to 36F, 363 A, 364A has a cut out slit at points of intersection / crossing over. Welding is used to weld the frame sections 345A, 346A, 347A, 348A and bracing members 36A to 36F, 363A, 364A to the braced wall 351 A of the sheet 35 A.

[0318] Advantages of the present invention as exemplified include:

[0319] - Precision cut parts (eg. sheet and bracing) enable curved sheet panels to be manufactured with greater accuracy and less variability.

[0320] - Speeds up automated production:- consistent part sizes with less variance in individual parts.

[0321] - Minimised wastage of materials from forming or bending processes (which usually leave an unshaped / non-bendable terminal portion of the materials due to limitations of those processes).

[0322] - Less materials used overall.

[0323] - Finished articles are lighter and easier to handle.

[0324] - Enable intricate bracing / strengthening web patterns to be utilised.

[0325] - Provides a more consistently accurate part without high dependency on skilled labour.

[0326] - Allows overlapping / crossing over of intersecting bracing.

[0327] - Reduces the need to use shorter cut parts that traditionally are needed to fit in between members that may otherwise overlap, cross over or intersect.

[0328] - Reduced tensions instilled into the materials (bracing, sheets) due to zero rolling / deformation forces applied to the raw construction materials.

[0329] - Reduced tensions minimise distortion after welding and surface coating processes / hot galvanisation due to the need for heat to be applied during powder coating, which can allow in-built stresses in the raw construction materials that are “bent or formed” (deformed) to materialise and “warp finished parts”.

[0330] - Improved and unique visual appearance of thinner longer overlapping / interconnected precision cut bracing (webbing members).

[0331] In the present specification, 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.

[0332] The terms "about" and "approximately" denote an interval of accuracy that a person skilled in the art will understand to still ensure the technical effect of the feature in question. The term typically indicates a deviation from the indicated numerical value of ±10 %, preferably ±5 %, more preferably ±2 %, and even more preferably ±1 %.

[0333] Reference in this specification to any number range includes all possible numbers / numerical values falling within that range, and further includes all possible subranges falling within that range, context permitting.

[0334] The reference in this specification to any prior publication (or information derived from it), or to any matter which is known, is not, and should not be taken as an acknowledgment or admission or any form of suggestion that that prior publication (or information derived from it) or known matter forms part of the common general knowledge in the field of endeavour to which this specification relates.

[0335] 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.

[0336] 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 appropriately interpreted by those skilled in the art.

Claims

Claims1. A curved sheeted race unit of a curved sheeted race, comprising: a curved inner panel that, when viewed in plan, is substantially in the shape of a planar arc and comprises first and second ends at opposed ends of the planar arc; and a curved outer panel that, when viewed in plan, is substantially in the shape of a planar arc and comprises first and second ends at opposed ends of the planar arc, wherein each said panel comprises: a braced frame that, when viewed in plan, is substantially in the shape of a planar arc, wherein the braced frame comprises non-deformed bracing, not subjected to a deformation process; and a curved sheet supported by the braced frame and providing an upwardly extending walkway wall and an upwardly extending braced wall opposite the walkway wall, wherein the non-deformed bracing extends along and is connected to the braced wall of the curved sheet, wherein the curved sheets within the braced frames extend upwardly and away from each other to provide an animal walkway between the inner and outer panels that, when viewed in plan, is substantially in the shape of a planar arc.

2. The curved sheeted race unit of claim 1, wherein: the curved sheet or at least one section thereof has the curvature of a conical arc; the curved sheet or at least one section thereof has the curvature of a planar arc; or, the curved sheet or at least one section thereof has the curvature of both a conical arc and a planar arc.

3. The curved sheeted race unit of claim 2, wherein the bracing is non-deformed and shaped, prepared or manufactured to match the conical arc and / or planar arc curvature of the curved sheet.

4. The curved sheeted race unit of any one of the preceding claims, wherein the bracing comprises one or more bracing members extending along the braced wall of the curved sheet.

5. The curved sheeted race unit of claim 4, wherein the bracing comprises two or more bracing members that cross paths or intersect, and the two or more bracing members comprise a cut-out, slit, slot or aperture such that the bracing members substantially follow the surface of, and remain substantially in contact with, the braced wall of the curved sheet.

6. The curved sheeted race unit of claim 4 or claim 5, wherein the bracing or bracing members are shaped, prepared or manufactured from a flat sheet or plate, preferably from steel or alloy.

7. The curved sheeted race unit of claim 4, 5 or 6, wherein the bracing or bracing members are laser cut from metal, preferably steel or alloy.

8. The curved sheeted race unit of claim 4, 5, 6 or 7, wherein the bracing or bracing members have high dimensional accuracy.

9. The curved sheeted race unit of any one of the preceding claims, wherein the curved sheet is elastically deformed, being formed by an elastic deformation process from a flat or planar sheet, preferably a steel, stainless steel, or aluminium sheet.

10. The curved sheeted race unit of claim 9, wherein the curved sheet is elastically deformed using a mold, jig or die.

11. The curved sheeted race unit of any one of the preceding claims, wherein the curved sheet is not formed using a rolling process.

12. The curved sheeted race unit of any one of the preceding claims, wherein the curved sheeted race unit comprises at least one race bow, preferably a race bow connected to each end of the inner panel and outer panel.

13. The curved sheeted race unit of any one of the preceding claims, wherein the curved sheeted race unit comprises a moveable barrier located above a said panel, preferably the inner panel, and moveable between a raised position and a lowered position relative to the panel.

14. A linear sheeted race unit comprising: an inner panel that, when viewed in plan, is substantially planar and comprises first and second ends at opposed ends thereof; and an outer panel that, when viewed in plan, is substantially planar and comprises first and second ends at opposed ends thereof, wherein each said panel comprises: a braced frame that, when viewed in plan, is substantially planar, wherein the braced frame comprises non-deformed bracing, not subjected to a deformation process; and a sheet supported by the braced frame and providing an upwardly extendingwalkway wall and an upwardly extending braced wall opposite the walkway wall, wherein the non-deformed bracing extends along and is connected to the braced wall of the sheet, wherein the sheets of or within the braced frames extend upwardly and away from each other to provide an animal walkway between the inner and outer panels that, when viewed in plan, is substantially linear.

15. A sheeted race unit, comprising:(i) an inner panel comprising first and second ends;(ii) an outer panel comprising first and second ends, wherein each said panel comprises: a braced frame that, when viewed in plan, is substantially planar; and a sheet supported by the braced frame and providing an upwardly extending walkway wall and an upwardly extending braced wall opposite the walkway wall, wherein the bracing extends along and is connected to the braced wall of the sheet, wherein the sheets of or within the braced frames extend upwardly and away from each other to provide an animal walkway between the inner and outer panels; and(iii) a moveable barrier located above the inner panel and / or a moveable barrier located above the outer panel, wherein the or each said moveable barrier is adapted to be raised or lowered relative to the panel and in the lowered position allows access to an animal located within the walkway.

16. The sheeted race unit of claim 15, wherein: the sheeted race unit is curved; or the sheeted race unit is as defined in any one of claims 1 to 12.

17. A sheeted race comprising: at least one sheeted race unit as defined in any one of the preceding claims; two or more sheeted race units as defined in any one of the preceding claims connected to together, wherein preferably any two adjacently connected sheeted race units share one and the same race bow; four curved sheeted race units as defined in any one of claims 1 to 13 connected to together, wherein preferably any two adjacently connected sheeted race units share one and the same race bow; four curved sheeted race units as defined in any one of claims 1 to 13 connected to together and one linear sheeted race unit as defined in claim 14 connected to a said curved sheeted raceunit, wherein preferably any two adjacently connected sheeted race units share one and the same race bow; or four curved sheeted race units as defined in any one of claims 1 to 13 connected to together and one linear sheeted race unit as defined in claim 14 connected to a said curved sheeted race unit, wherein preferably any two adjacently connected sheeted race units share one and the same race bow, and wherein each said sheeted race unit further comprise an external elevated operator walkway extending alongside the inner panel of each said sheeted race unit.

18. A curved panel of a curved sheeted race or a curved sheeted race unit, wherein the curved panel comprises: a braced frame that, when viewed in plan, is substantially in the shape of a planar arc, wherein the braced frame comprises non-deformed bracing, not subjected to a deformation process; and a curved sheet supported by the braced frame and providing an upwardly extending walkway wall and an upwardly extending braced wall opposite the walkway wall, wherein the non-deformed bracing extends along and is connected to the braced wall of the curved sheet.

19. A method of manufacturing a curved panel of a curved sheeted race or a curved sheeted race unit, wherein the curved panel comprises a curved sheet supported by a braced frame and the braced frame comprises a curved frame and non-deformed bracing, not subjected to a deformation process, wherein the method comprises the steps of:(i) using a jig, die or mold to form a curved sheet having the required curvature;(ii) arranging upon the curved sheet the curved frame as well as the non-deformed bracing prepared to match the curvature of the curved sheet; and(iii) connecting the curved frame and non-deformed bracing to the curved sheet so as to form the curved panel.

20. A curved sheeted race unit, a curved sheeted race, a curved panel of a curved sheeted race or a curved sheeted race unit, a linear sheeted race unit, or a sheeted race comprising at least one linear sheeted race unit, as described or illustrated, or substantially as described or illustrated herein.

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