Pole support member

Abstract

A support member 1 for use in show jumping, a pair of support members, a kit comprising the support member(s), and methods of manufacturing and assembly thereof are disclosed. The support member 1 com

Description

FIELD OF THE INVENTION The present invention relates to a support member (also known as a jump cup) for supporting a typically horizontal pole in an elevated position. The support member is for use in show jumping, such as equestrian show jumping. BACKGROUND OF THE INVENTION Jump cups for use in show jumping are known. Jump cups may be attached to a vertical wing (or vertical support) at a given height. An end region of a pole to be jumped over may then be disposed on the jump cup. When the pole is supported at both of its end regions by a jump cup the pole is supported in an elevated position. Therefore, an assembly of two vertical wings, two jump cups, and a pole is used as an obstacle (or a fence) for jumping over during show jumping. The present inventor has found a solution to shortcomings in and other improvements in jump cups. PROBLEM TO BE SOLVED BY THE INVENTION As an animal is jumping over an elevated pole retained by jump cups the animal may unintentionally contact the elevated pole or a jump cup. If a component of that contact is downward: the jump cup may be permanently damaged and rendered unusable and / or the jump cup may be dismounted from the vertical wing requiring reassembly. In addition, the animal and / or (where applicable) a rider of the animal may be injured. The same three problems may occur when the animal contacts the jump cup directly and a component of that contact is lateral. The present inventor has observed that jump cups break regularly and pose a risk of injury to show jumping animals and their riders. SUMMARY OF THE INVENTION In accordance with a first aspect of the invention, there is provided a support member for use in show jumping, the support member comprising: a mounting portion for reversibly mounting the support member to a vertical support; and a cup portion for retaining an end region of an elevated pole. Preferably, the support member is configured to reversibly deform, such that the end region of the elevated pole may pass through the cup portion or be released from the cup portion, when a downward force applied to the elevated pole exceeds a pre-defined force threshold. Preferably, the mounting portion is for reversibly mounting the support member to a cylindrical vertical support, wherein the support member, when mounted to the cylindrical vertical support, is configured to rotate around the circumference of the vertical support. In a second aspect of the invention, there is provided a pair of support members, each as defined in the first aspect. In a third aspect of the invention, there is provided a show jumping kit, the kit comprising: one or a pair of support members, e.g. each as defined in the first aspect, one or a pair of vertical supports, and optionally, a pole for being retained at an elevated height by the support member(s). In a fourth aspect of the invention, there is provided a method of manufacturing a support member as defined in the first aspect of invention. In a fifth aspect of the invention, there is provided a mold or a cast or an electronically stored representation corresponding to the support member of the first aspect. In a sixth aspect of the invention, there is provided a method of assembling (or setting) a show jumping obstacle, the method comprising: providing a support member (or a pair of support members each) as defined in the first aspect; optionally providing a vertical support or a pair of vertical supports; mounting the support member to a respective vertical support; and locating an end region of a pole in the cup portion of the support member, such that the pole is retained in an elevated position. In a seventh aspect of the invention, there is provided a support member substantially as described and shown (or illustrated) in any one of the accompanying drawings. ADVANTAGES OF THE INVENTION The device and methods and other aspects of the invention provide for an improved support member (also known as a jump cup). The support member is easier to use and safer for animals (and their riders) during show jumping, in contrast to known jump cups. As an animal is jumping over an elevated pole retained by support members of the present invention, the animal may unintentionally contact the elevated pole or a support member. If a component of that contact is downward: the elevated pole is readily released from the support member, whilst the support member is undamaged and remains mounted in the same position on the vertical support. If a component of that contact is lateral, the support member may rotate relative to the vertical support, such that the support member is undamaged and remains mounted in the same position on the vertical support. And, irrespective of if a component of the contact is lateral or downward, the risk of injury to the animal and to its rider is reduced. BRIEF DESCRIPTION OF THE DRAWINGS Figure lisa perspective view of a support member of one embodiment of the invention; Figure 2 is a plan (top down) view of the support member illustrated in Figure 1; Figures 3 A and 3B are frontal views of the support member illustrated in Figure 1, the support member in a resting state and a reversibly deformed state, respectively; Figures 3C and 3D are perspective views of the support member illustrated in Figure 1, the support member respectively in a resting state and a reversibly deformed state, respectively; Figures 4A and 4B show front and rear views, respectively, of the support member illustrated in Figure 1 while retained in situ on a cylindrical vertical support; Figures 4C and 4D show front and rear views, respectively, of the support member illustrated in Figure 1 while retained in situ on a cylindrical vertical support and after swivelling by around 45°; Figure 5 is a plan (top down) view of the support member illustrated in Figure 1, however, the support member has been tilted about the z axis by around 45°; Figure 6 illustrates a pair of support members retained on respective cylindrical vertical supports and supporting a horizontal pole at an elevated height; and Figure 7 illustrates a further support member. DETAILED DESCRIPTION OF THE INVENTION In a first aspect there is provided a support member for use in show jumping, the support member comprising: a mounting portion for reversibly mounting the support member to a vertical support; and a cup portion for retaining an end region of an elevated pole. The support member may be used as part of a show jumping kit (described below), is a device in its own capacity, and is also known as a jump cup. Therefore, herein, the terms support member, support device, and jump cup may be interchanged. The vertical support is also known as a jump wing or jump stand. Therefore, herein, the terms vertical support and jump wing (or jump stand) may be interchanged. Dimensions and other measurements disclosed herein are directed to the support member in its non-deformed state, unless otherwise stated. Furthermore, the support member is not limited to any particular dimensions or other measurements in order to function as described herein; however, unless otherwise stated, dimensions and other measurements disclosed herein are preferable for equestrian show jumping applications. Preferably, the support member is (more preferably, the mounting portion and / or the cup portion is / are) configured to reversibly deform, such that the end region of the elevated pole may pass through the cup portion or be released from the cup portion, when a downward force applied to the elevated pole reaches or exceeds a pre-defined (downward) force threshold. Preferably, at least the mounting portion and / or the cup portion is / are configured to reversibly deform, such that the end region of the elevated pole may pass through the cup portion or be released from the cup portion, when a downward force applied to the elevated pole reaches or exceeds the pre-defined (downward) force threshold. Preferably, the support member is resilient. In one option, at least a part or parts of the support member is (e.g. at least the mounting portion and / or the cup portion, or a part or parts thereof, is / are) resilient. It is preferred that once the end region of the elevated pole has passed through the cup portion or has been released from the cup portion the support member returns to its original (nondeformed) shape. Preferably, the pre-defined (downward) force threshold is at least 50 dekanewtons (daN), more preferably at least 70 daN, still more preferably at least 90 daN, most preferably at least 110 daN, for example at least 120 daN. Preferably, the pre-defined (downward) force threshold is at most 220 dekanewtons (daN), more preferably at most 200 daN, still more preferably at most 180 daN, most preferably at most 160 daN, for example at most 150 daN. Preferably, the pre-defined (downward) force threshold is from 40 to 230 dekanewtons (daN), more preferably from 60 to 210 daN, still more preferably from 80 to 190 daN, most preferably from 100 to 170 daN, for example from 120 to 150 daN. With reference to the axes illustrated in Figure 1 (and as described more fully below): the length of the support member is measured in the front to rear direction (i.e. the x axis direction); the height of the support member is measured in the bottom to top direction (i.e. the y axis direction); and the width of the support member is measured in the side-to-side or lateral direction (i.e. the z axis direction). Preferably, a downward force is a force (or a component of a force) acting generally in the y axis downward direction with respect to the support member. Preferably, the support member has a length of at least 10 cm, more preferably of at least 12 cm, still more preferably of at least 14 cm, most preferably of at least 16 cm, for example of at least 18 cm, e.g. of at least 20 cm. Preferably, the support member has a length of at most 32 cm, more preferably of at most 30 cm, still more preferably of at most 28 cm, most preferably of at most 26 cm, for example of at most 24 cm, e.g. of at most 22 cm. Preferably, the support member has a length of from 9 cm to 33 cm, more preferably of from 11 cm to 31 cm, still more preferably of from 13 cm to 29 cm, most preferably of from 15 cm to 27 cm, for example of from 17 cm to 25 cm, e.g. of from 19 cm to 23 cm, in one example of around 21 cm. Preferably, the support member has a height of at least 4 cm, more preferably of at least 5 cm, still more preferably of at least 6 cm, most preferably of at least 7 cm, for example of at least 8 cm, e.g. of at least 9 cm. Preferably, the support member has a height of at most 21 cm, more preferably of at most 19 cm, still more preferably of at most 17 cm, most preferably of at most 15 cm, for example of at most 13 cm, e.g. of at most 11 cm. Preferably, the support member has a height of from 4 cm to 22 cm, more preferably of from 5 cm to 20 cm, still more preferably of from 6 cm to 18 cm, most preferably of from 7 cm to 16 cm, for example of from 8 cm to 14 cm, e.g. of from 9 cm to 12 cm, in one example of around 10 cm. Preferably, the support member has a width of at least 5 cm, more preferably of at least 6 cm, still more preferably of at least 7 cm, most preferably of at least 9 cm, for example of at least 10 cm, e.g. of at least 11 cm. Preferably, the support member has a width of at most 23 cm, more preferably of at most 21 cm, still more preferably of at most 19 cm, most preferably of at most 17 cm, for example of at most 15 cm, e.g. of at most 13 cm. Preferably, the support member has a width of from 5 cm to 24 cm, more preferably of from 7 cm to 22 cm, still more preferably of from 8 cm to 20 cm, most preferably of from 9 cm to 18 cm, for example of from 10 cm to 16 cm, e.g. of from 11 cm to 14 cm, in one example of around 12 cm. Preferably, the support member has a weight of at least 50 g, more preferably of at least 75 g, for example of at least 100 g. Preferably, the support member has a weight of at most 500 g, more preferably of at most 400 g, still more preferably of at most 300 g, for example of at most 200 g, e.g. of at most 150 g. Preferably, the support member has a weight of from 50 g to 500 g, more preferably of from 75 g to 250 g, for example of from 100 g to 150 g, e.g. of around 110 g. The cup portion is for retaining an end region of an elevated pole. Preferably, the cup portion generally extends (e.g. away from the mounting portion) in the x axis direction and / or in the forward direction. Preferably, the cup portion has a length and / or a width of at least 2 cm, more preferably of at least 4 cm, still more preferably of at least 6 cm, most preferably of at least 8 cm, for example of at least 9 cm. Preferably, the cup portion has a length and / or a width of at most 25 cm, more preferably of at most 20 cm, still more preferably of at most 16 cm, most preferably of at most 14 cm, for example of at most 12 cm, e.g. of at most 10 cm. Preferably, the cup portion has a length of from 3 cm to 24 cm, more preferably of from 5 cm to 18 cm, still more preferably of from 7 cm to 15 cm, most preferably of from 8 cm to 14 cm, for example of from 9 cm to 12 cm, e.g. of around 10 cm. Preferably, the cup portion has a width of from 3 cm to 24 cm, more preferably of from 4 cm to 17 cm, still more preferably of from 5 cm to 13 cm, most preferably of from 6 cm to 11 cm, for example of from 8 cm to 10 cm, e.g. of around 9 cm. Preferably, the cup portion has a height (measured in the y axis direction, and therefore which may also be referred to as a depth) of at least 0.5 cm, more preferably of at least 1 cm, for example of at least 1.5 cm. Preferably, the cup portion has a height of at most 5 cm, more preferably of at most 4 cm, still more preferably of at most 3 cm, for example of at most 2 cm. Preferably, the cup portion has a height of from 0.5 cm to 4 cm, more preferably of from 1 cm to 3 cm, for example of around 2 cm, e.g. of around 1.8 cm. Preferably, the cup portion is generally any one or (where the context allows) any combination of: dish-shaped, cup-shaped, bowl-shaped, U-shaped, or arc-shaped. Preferably, a U-shape includes curved shapes having a discontinuous radius of curvature. More preferably, a cross section of the cup portion or the profile of the cup portion or an upper (or upward facing) surface of the cup portion is generally (or generally defines) any one or (where the context allows) any combination of: dish-shaped, cup-shaped, bowl-shaped, U-shaped, or arc-shaped. Preferably, the cross section of the cup portion is taken parallel to the y, z plane (or across the width of the cup portion). Preferably, the profile of the cup portion is viewed along the x axis. Preferably, the cup portion has a generally consistent cross section along its length and / or the cup portion has an elongate (e.g. continuous) profile. Preferably, an arc shape is a minor arc shape or a semicircle shape. Preferably, the cup portion is curved or arced. Preferably, from its centre towards both (opposite and / or lateral) sides, the cup portion curves or arcs upwardly. Optionally, reference to the cup portion may be replaced with: a cross section of the cup portion; the profile of the cup portion; or an upper (or upward facing) surface of the cup portion. Preferably, when the end region of the elevated pole is retained by (e.g. is positioned on) the cup portion, the end region is prevented from rolling off the cup portion, for example in a sideways direction or in the x axis direction. Furthermore, it is preferred that the cup portion is configured (e.g. is sufficiently dished) such that a minor lateral force applied to the elevated pole does not cause the end region to roll off the cup portion. Reference directly above to the cup portion being generally dish- or cup-shaped includes at least an upper (or upward facing) surface of the cup portion being generally dish- or cup-shaped. A lateral force is a force (or a component of a force) acting generally in the x axis direction with respect to the support member. Preferably, the cup portion comprises a longitudinal slot. By longitudinal, preferably it is meant extending (generally) in the x axis direction. Preferably, the longitudinal slot is continuous through the cup portion. Using alternative language, preferably, the longitudinal slot extends from the front end to the rear end of the cup portion. Preferably, the longitudinal slot extends through the cup portion. Using alternative language, preferably, the longitudinal slot extends from a bottom surface to a top surface of the cup portion. Preferably, the longitudinal slot defines a free volume of space and / or is not occluded. Preferably, the longitudinal slot: is disposed centrally (widthwise) with respect to the cup portion; is an elongate longitudinal slot; and / or is a (generally) straight longitudinal slot. Preferably, the longitudinal slot splits the cup portion into two (lateral and / or discrete) halves. Preferably, the support member is configured to reversibly deform, such that the end region of the elevated pole may pass (or drop) through the longitudinal slot, when a downward force applied to the elevated pole reaches or exceeds the pre-defined force threshold. Preferably, as a downward force is applied to the elevated pole (retained on the cup portion) the support member is configured to reversibly deform such that the width (measured in the z axis direction) of the longitudinal slot increases. Preferably, when a downward force applied to the elevated pole reaches or exceeds the pre-defined force threshold, the support member is configured such that the width of the longitudinal slot increases to such an extent that the end region of the elevated pole may pass through the longitudinal slot. Preferably, the width of the longitudinal slot increases, such that the end region of the elevated pole may pass (or drop) through the longitudinal slot, when a downward force applied to the elevated pole reaches or exceeds the pre-defined force threshold. Preferably, once the width of the longitudinal slot has increased such that it is larger than, for example, the diameter of the elevated pole (more specifically, of the elevated pole end region), the elevated pole end region passes through the longitudinal slot. Preferably, once the elevated pole end region has passed through the longitudinal slot, the support member returns to its original shape and, therefore, the width of the longitudinal slot returns to its original width. Preferably, in use, the end region of the elevated pole retained by the support member is located directly above the longitudinal slot. Preferably, the longitudinal slot has a width less than the largest cross-sectional dimension of a pre-defined pole. For example, for a cylindrical pole or a pole having a circular cross-section, the largest cross-sectional dimension is its diameter. Preferably, the (non-deformed) width of the longitudinal slot is at least 1 cm, more preferably at least 2 cm, still more preferably at least 3 cm, for example at least 4 cm. Preferably, the (non-deformed) width of the slot is at most 15 cm, more preferably at most 10 cm, still more preferably at most 9 cm, for example at most 8 cm, e.g. at most 7 cm. Preferably, the (non-deformed) width of the longitudinal slot is from 1 cm to 14 cm, more preferably from 2 cm to 12 cm, still more preferably from 3 cm to 10 cm, most preferably from 4 cm to 8 cm, for example from 5 cm to 6 cm, e.g. around 5 cm. Preferably, the largest cross-sectional diameter (e.g. the diameter) of the elevated pole is at least 2 cm, more preferably at least 4 cm, still more preferably at least 6 cm, for example at least 8 cm. Preferably, the largest cross-sectional diameter (e.g. the diameter) of the elevated pole is at most 20 cm, still more preferably at most 18 cm, for example at most 16 cm, e.g. at most 14 cm. Preferably, the largest cross-sectional diameter (e.g. the diameter) of the elevated pole is from 2 cm to 28 cm, more preferably from 4 cm to 24 cm, still more preferably from 6 cm to 20 cm, most preferably from 8 cm to 16 cm, for example from 9 cm to 12 cm, e.g. around 10 cm or, optionally, even around 9.5 cm. In addition, preferably, the support member is configured to retain an end region of an elevated pole having the dimensions in this paragraph. Preferably, when a downward force applied to the elevated pole reaches or exceeds the pre-defined force threshold, the support member is configured to reversibly deform such that the width of the longitudinal slot increases by any one or (where the context allows) any combination of: at least 50 %, more preferably by at least 60 %, still more preferably by at least 70 %, most preferably by at least 80 %, for example by at least 90%, e.g. by at least 100 %; at most 200 %, more preferably by at most 180 %, still more preferably by at most 160 %, most preferably by at most 140 %, for example by at most 120 %, e.g. by at most 110 %; and from 40 % to 190 %, more preferably by from 50 % to 170 %, still more preferably by from 60 % to 150 %, most preferably by from 70 % to 130 %, for example by from 90 % to 110%, e.g. by around 100 %. Preferably, when a downward force applied to the elevated pole reaches or exceeds the pre-defined force threshold, the support member is configured to reversibly deform such that the width of the longitudinal slot increases by any one or (where the context allows) any combination of at least 1 cm, more preferably at least 2 cm, still more preferably at least 3 cm, most preferably at least 4 cm, e.g. around 5 cm; at most 10 cm, more preferably at most 8 cm, still more preferably at most 6 cm, most preferably at most 5 cm; and from 1 cm to 9 cm, more preferably from 2 cm to 7 cm, still more preferably from 3 cm to 5 cm. Preferably, the cup portion comprises (at least) a pair of (or two) arms for retaining the end region of the elevated pole. In one option, the cup portion has no more than two arms. Preferably, the longitudinal slot is located or disposed between (more preferably, is located or disposed between, and defined by) the pair of arms. Preferably, the length of the longitudinal slot and the length of the pair of arms is generally the same. Preferably, the pair of arms and / or the longitudinal slot generally extend(s) (e.g. away from the mounting portion) in the x axis direction and / or in the forward direction. Preferably, the pair of arms and / or the longitudinal slot have the same length and / or height (also referred to above as depth) as disclosed above for the cup portion. Preferably, the pair of arms (e.g. with the longitudinal slot therebetween) define the width of the cup portion. Preferably, each arm (of the pair of arms) has a width of at least 0.5 cm, more preferably of at least 1 cm, still more preferably of at least 1.5 cm, for example of at least 2 cm. Preferably, each arm (of the pair of arms) has a width of at most 10 cm, more preferably of at most 8 cm, still more preferably of at most 6 cm, most preferably of at most 4 cm, for example of at most 3 cm. Preferably, the support member has a width of from 1 cm to 3 cm, and in one example of around 2 cm. Preferably, the pair of arms are configured such that the end region of the elevated pole may rest or be supported thereon. Preferably, (the arms of) the pair of arms move (or abduct) away from each other as the support member reversibly deforms. Preferably, (the arms of) the pair of arms move (or abduct) away from each other as a downward force is applied to the elevated pole. Preferably, when a downward force applied to the elevated pole reaches or exceeds the pre-defined force threshold, (the arms of) the pair of arms move (or abduct) away from each other to such an extent that the end region of the elevated pole may pass or drop through (e.g. between) (the arms of) the pair of arms. Preferably, the support member is configured as such. Preferably, (the arms of) the pair of arms move away from each other in a generally lateral direction, e.g. as a downward force is applied to the elevated pole resting on the pair of arms. Preferably, the abduction of (the arms of) the pair of arms is horizontal plane and / or vertical plane abduction. For example, abduction of (the arms of) the pair of arms may have a horizontal component and a vertical component. In addition to, for example, abduction, each of the pair of arms may reversibly deform by bending along their length as a downward force is applied to the elevated pole, e.g. retained on the cup portion. Preferably, each arm of the pair of arms comprises an upper (or upward facing) surface. Preferably, the upper surfaces are configured for contacting and / or to correspond with the end region of the elevated pole. Preferably, the upper surfaces generally incline or slant downward from an outer side of the arm to an inner side of the arm. For example, the upper surfaces may be planar (or flat) or may have a curved profile (e.g. a concave curved profile). Preferably, the upper surfaces define (e.g. define together) any one or (where the context allows) any combination of: a dish-shape, a cup-shape, a bowl-shape, a U-shape, or an arc-shape. Preferably, the upper surfaces are configured for retaining and / or contacting and / or receiving (e.g. snugly receiving) the end region of the elevated pole, which elevated pole is preferably a cylindrical pole. Preferably, the upper surfaces of the pair of arms (at least in part) have a radius of curvature corresponding to or define (e.g. define together) an arc corresponding with the curvature of the elevated pole (or an end region thereof). Example elevated pole diameters are set out above. It is preferred that the pair of arms, together, define the general shape of the cup portion as discussed above. Therefore, preferably, and as discussed above, when the end region of the elevated pole is retained by (e.g. is positioned on) the pair of arms, the end region is prevented from rolling off the pair of arms. Preferably, the cup portion further comprises a pair of stops (or a pair of buffers) configured to prevent an end of the elevated pole contacting the vertical support. As such, preferably, the pair of stops are configured to prevent the elevated pole and the vertical support from damaging each other. Preferably, each stop is disposed between an arm and the mounting portion. The pair of stops is described in further detail in the specific description below; any feature or combination of features of the pair of stops described below may be incorporated into this aspect. Preferably, the support member remains (or is configured to remain) mounted on the vertical support as the support member deforms. Preferably, the support member is (or is configured to be) reusable (e.g. immediately reusable) after the end region of the elevated pole has passed through or has been released from the cup portion. Preferably, the end region of the elevated pole may pass through or be released from the cup portion when a downward force applied to the elevated pole exceeds the pre-defined force threshold whilst the support member remains mounted to the vertical support. In one option, the mounting portion comprises a keyhole or a key for reversibly interlocking, respectively, with a corresponding key or keyhole disposed on the vertical support. Preferably, the mounting portion is for reversibly mounting the support member to a cylindrical vertical support, wherein the support member, when mounted to the cylindrical vertical support, is configured to rotate (or swivel or revolve) about or around the circumference of the cylindrical vertical support. Therefore, in one preferred option of the first aspect, there is disclosed a support member for use in show jumping, the support member comprising: a mounting portion for reversibly mounting the support member to a cylindrical vertical support; and a cup portion for retaining an end region of an elevated pole, wherein the support member, when mounted to the cylindrical vertical support, is configured to rotate (or swivel or revolve) about or around the circumference of the cylindrical vertical support. Alternatively, it may be said that, when mounted to the cylindrical vertical support, the support member is configured to rotate (or swivel or revolve) about or around a central axis of the cylindrical vertical support. Preferably, the support member, when mounted to the cylindrical vertical support, is configured to rotate (or swivel or revolve) generally without changing height (or while generally remaining at the same level) with respect to the cylindrical vertical support. Where the context allows, any feature or combination of features of the first aspect disclosed above may be incorporated into this preferred option. Similarly, where the context allows, any feature or combination of features of the first aspect set out below is not limited to this preferred option and may be combined with any feature or combination of features of the first aspect disclosed above. Preferably, the mounting portion defines a central aperture, more preferably the mounting portion defines a circular central aperture. Preferably, the mounting portion defines a central column of free space, more preferably the mounting portion defines a cylindrical central column of free space. Preferably, the mounting portion defines a central aperture or a central column of free space in plan view (e.g. when viewed in the y axis direction). Preferably, the central aperture or the central column of free space is for receiving the vertical support (e.g. therethrough). Preferably, the mounting portion is configured to wrap around (e.g. snugly wrap around) the vertical support. As such, it is preferable that the vertical support is a pre-defined vertical support. More preferably, the mounting portion is configured to wrap around (e.g. snugly wrap around) the circumference of the vertical support, wherein the vertical support is cylindrical. As such, it is preferable that the vertical support has a pre-defined diameter. Preferably, the central aperture or the central column of free space has a diameter as disclosed above for the elevated pole. However, for the avoidance of any doubt, the diameter of the elevated pole need not be the same as the diameter of the central aperture or the central column of free space. Preferably, the mounting portion is generally C-shaped. More preferably, in plan view (e.g. when viewed in the y axis direction) the mounting portion is generally C-shaped. A C-shape has an opening. Preferably, the C-shape is a circle shape or an oval shape with an opening. Preferably, the inside of the C-shape is the central aperture or the central column of free space disclosed above. Preferably, for example where the C-shape is a circle shape with an opening, the opening defines at most a 110° arc (e.g. with respect to the circle shape), more preferably at most a 90° arc, still more preferably at most a 70° arc, most preferably at most a 50° arc, for example at most a 30° arc. Preferably, for example where the C-shape is a circle shape with an opening, the opening defines at least a 5° arc (e.g. with respect to the circle shape), more preferably at least a 10° arc, still more preferably at least a 15° arc, most preferably at least a 20° arc, for example at least a 25° arc. Preferably, the opening of the C-shape corresponds with the longitudinal slot of the cup portion. Preferably, the opening of the C-shape has a width having any one or (where the context allows) any combination of the measurements disclosed above for the width of the longitudinal slot. Although not essential, preferably the width of the opening of the C-shape and of the longitudinal slot is the same. Preferably, the opening of the C-shape and the longitudinal slot together define a continuous slot. Preferably, using an alternative description, the longitudinal slot comprises the opening of the C-shape. Preferably, the continuous slot (or the longitudinal slot comprising the opening) has direct access to or communicates with the central aperture or the central column of free space of the mounting portion disclosed above. Preferably, due to the continuous slot (or the longitudinal slot comprising the opening), where the cup portion comprises two discrete halves (e.g. two arms), each discrete halve (e.g. each arm of the pair of arms) extends for an alternative end of the C-shape. Preferably, e.g. due to the continuous slot (or the longitudinal slot comprising the opening), the support member is a continuous (e.g. unbranched) shaped strip or elongate body. In one preferred option, the support member consists of a single and / or integral body. Preferably, the mounting portion (or an upper region of the mounting portion) is configured to rest on a protrusion or platform extending (e.g. extending laterally, such as in the x direction) from the vertical support. Preferably, the protrusion or platform extends from the rear of the vertical support. Preferably, the support member is reversibly mountable to the vertical support by disposing the mounting portion (or the upper region thereof) on the protrusion or platform extending from the vertical support. Preferably, the mounting portion (or the upper region of the mounting portion) comprises a lower edge configured to rest on (or contact) the protrusion or platform extending from the vertical support. Preferably, the lower edge is straight, and / or flat (or planar). Preferably, the lower edge of the upper region is straight, and / or flat (or planar). Preferably, the lower edge of the mounting portion (or of the upper region of the mounting portion) is generally horizontal. By horizontal, it is preferably meant generally parallel to the x, z plane. Preferably, the upper region is defined by having a generally straight, and / or flat (or planar) lower edge. Preferably, the upper region is defined by having a generally horizontal lower edge. Preferably, the support member is configured to rotate (or swivel or revolve) about or around the circumference of the cylindrical vertical support by at most 200°, more preferably by at most 180°, still more preferably by at most 160°, most preferably by at most 140°, for example by at most 120°, e.g. by at most 100°. Preferably, the support member is configured to rotate (or swivel or revolve) about or around the circumference of the cylindrical vertical support by at least 30°, more preferably by at least 40°, still more preferably by at least 50°, most preferably by at least 60°, for example by at least 70°, e.g. by at least 80°. Preferably, the support member is configured to rotate (or swivel or revolve) about or around the circumference of the cylindrical vertical support by from 30° to 190°, more preferably by from 40° to 170°, still more preferably by from 50° to 150°, most preferably by from 60° to 130°, for example by from 70° to 110°, e.g. by from 75° to 90°, and in one example by around 80°. More preferably, the support member is configured to rotate (or swivel or revolve) about or around the circumference of the cylindrical vertical support, by any one or (where the context allows) any combination of the degree amounts set out above, generally without changing height (or while generally remaining at the same level) with respect to the cylindrical vertical support. For example, an advantage of the straight and / or flat lower edge of the mounting portion is that the support member may rotate without changing height with respect to the vertical support. In this case, when a lateral force is applied to the elevated pole retained on the support member, there is low resistance to rotation of the support member. In turn, the elevated pole will be readily released from the support member, reducing the risk of injury to an animal (and / or its rider) that contacts the elevated pole in a lateral direction. Similarly, in the event an animal attempting to jump over the elevated pole laterally contacts the support member directly, the risk of injury to the animal (and / or its rider) is low because the support member will rotate with respect to the vertical support. Preferably, the upper region of the mounting portion is disposed at the rear of and / or medially with respect to the support member (or to the mounting portion). As such, it is preferred that the x, y plane passes through the middle (or center) of the upper region. Therefore, preferably, the upper region is symmetrical in the x, y plane. Preferably, the upper region is opposite and / or distal to the cup portion. When mounting the support member on the vertical support, it is typical that the middle of the upper region will be located over the protrusion or platform of the vertical support. That is to say, it is typical that the x, y plane will symmetrically intersect the upper region, the longitudinal slot, and the protrusion or platform on which the support member is mounted. In this case, the support member may rotate clockwise (in a positive direction) or anticlockwise (in a negative direction). Preferably, therefore, where it is said (for example) the support member is configured to rotate about or around the circumference of the cylindrical vertical support by at most 200°, it may instead be said by at most 100° in either a positive or a negative direction. As discussed above, it is preferred that the mounting portion is circle shaped. Preferably, the upper region occupies (or defines) an arc of the circle shape, for example that arc having any one or (where the context allows) any combination of the degree measurements disclosed above for the rotation of the support member about the cylindrical vertical support. Preferably, the lower edge of the mounting portion that is generally straight, and / or flat (or planar occupies (or defines) an arc of the circle shape, for example that arc having any one or (where the context allows) any combination of the degree measurements disclosed above for the rotation of the support member about the cylindrical vertical support. Preferably, the mounting portion further comprises a pair of (or two) downward projections. Preferably, the downward projections flank (or are disposed at either end of) the upper region. Preferably, the upper region has disposed at each of its ends a downward projection. Preferably, the downward projections are configured to act as a stop to rotation. Preferably, the downward projections are configured to prevent rotation of the support member about the circumference of the cylindrical vertical support beyond a pre-defined limit. Preferably, the downward projections extend down relative to (and / or down past the level of) the lower edge of the upper region. Preferably, the downward projections are a continuation of the body forming the upper region. Preferably, as the body transitions from the upper region to the respective downward projection, the body begins to extend downwardly. Preferably, the mounting portion comprises a pair of (or two) spanning regions. Preferably, a spanning region is or comprises a downward projection. Preferably, each spanning region extends from (alternative ones of) an end of the upper region to the cup portion. Preferably, each spanning region is configured to wrap around and / or to extend around a side of the vertical support. More preferably, each spanning region is configured to wrap around and / or to extend around a side of the vertical support generally from the rear to the front of the vertical support. Preferably, the spanning regions connect (or span between) the upper region to (and) the cup portion. Preferably, each spanning region extends from (alternative ones of) an end of the upper region to (alternative ones of) an arm of the pair of arms. Preferably, the cup portion is disposed or positioned below the upper region. Preferably, each spanning region extends down from (alternative ones of) an end of the upper region. Preferably, the cup portion and the upper region are vertically separated by a distance of at least 2 cm, more preferably of at least 3 cm, still more preferably of at least 4 cm, most preferably of at least 5 cm, for example of at least 6 cm. Preferably, the cup portion and the upper region are vertically separated by a distance of at most 15 cm, more preferably of at most 13 cm, still more preferably of at most 11 cm, most preferably of at most 9 cm, for example of at most 7 cm. Preferably, the cup portion and the upper region are vertically separated by a distance of from 2 cm to 16 cm, more preferably of from 3 cm to 14 cm, still more preferably of from 4 cm to 12 cm, most preferably of from 5 cm to 10 cm, for example of from 6 cm to 8 cm, e.g. around 7 cm. As discussed above, it is preferred that each spanning region is configured to wrap around and / or to extend around a side of the vertical support. Preferably, the cup portion and the upper region are horizontally separated by a distance of at least 5 cm, more preferably of at least 6 cm, still more preferably of at least 7 cm, most preferably of at least 8 cm, for example of at least 9 cm. Preferably, the cup portion and the upper region are horizontally separated by a distance of at most 18 cm, more preferably of at most 16 cm, still more preferably of at most 14 cm, most preferably of at most 12 cm, for example of at most 10 cm. Preferably, the cup portion and the upper region are horizontally separated by a distance of from 5 cm to 19 cm, more preferably of from 6 cm to 17 cm, still more preferably of from 7 cm to 15 cm, most preferably of from 8 cm to 13 cm, for example of from 9 cm to 11 cm, e.g. around 10 cm. Preferably, the upper region in combination with the two spanning regions define the C-shape of the mounting portion disclosed above. Preferably, the spanning regions are a continuation of the body forming the upper region. Preferably, as the body transitions from the upper region to the respective spanning region, the body begins to extend downwardly. Viewed laterally or side on (e.g. in the z axis direction), a spanning region may, for example, have an S-shape or a straight shape. Preferably, the mounting portion comprises (or consists of) the upper region and the two spanning regions. Preferably, the mounting portion comprises (or consists of): the upper region comprising a straight and / or flat lower edge; and the two spanning regions, each spanning region spanning between a respective end of the upper region and the cup portion (or an arm of the cup portion). Preferably, as described more fully above, the spanning portions are configured to extend both: around the vertical support and downwardly. Preferably, the mounting portion is an (e.g. single) integral body. Preferably, the mounting portion and the cup portion are together an (e.g. single) integral body. Preferably, the support member is an (e.g. single) integral body. For example, the support member (or the mounting portion and the cup portion together) may be manufactured (e.g. moulded) as a single piece or body. Preferably, the integral body is a ribbon-like body. Preferably, the integral body has a thickness of at least 2 mm, more preferably of at least 3 mm, still more preferably of at least 4 mm, most preferably of at least 5 mm, for example of at least 6 mm. Preferably, the integral body has a thickness of at most 3 cm, more preferably of at most 2 cm, still more preferably of at most 16 mm, most preferably of at most 14 mm, for example of at most 12 mm. e.g. of at most 1 cm. Preferably, the integral body has a thickness of from 0.5 cm to 2 cm, e.g. of from 6 mm to 1 cm. Preferably, the integral body has a depth of at least 1 cm, more preferably of at least 1.5 cm, still more preferably of at least 2 cm, e.g. of around 2.5 cm. Preferably, the integral body has a depth of at most 5 cm, more preferably of at most 4 cm, still more preferably of at most 3 cm. Preferably, the integral body has a depth of from 1 cm to 4 cm, more preferably of from 2 cm to 3 cm. Optionally, the depth of the integral body varies along its length. In this option, the depth measurements set out above preferably are the largest depth measurement along the length of the integral body. Preferably, the support member comprises (or consists of) a resilient material. Preferably, the resilient material (or the integral body as discussed above) has an elastic modulus of from 4 GPa to 12 GPa, more preferably of from 6 GPa to 11 GPa, still more preferably of from 8 GPa to 10 GPa, e.g. of around 9 GPa. Preferably, the resilient material (or the integral body as discussed above) has an elastic modulus of at least 5 GPa, e.g. of at least 7 GPa. Preferably, the resilient material (or the integral body as discussed above) has an elastic modulus of at most 11 GPa, more preferably of at most 10 GPa, still more preferably of at most 9 GPa. Preferably, the elastic modulus (GPa) is measured at room temperature. More preferably, the support member comprises (or consists of) (or, alternatively, the resilient material preferably is) a plastic, still more preferably a thermoplastic. For example, the plastic is any one or (where the context allows) any combination of: acrylic, acrylonitrile butadiene styrene, a polyamide, nylon, polylactic acid, polybenzimidazole, polycarbonate, polyether sulfone, polyoxymethylene, polyether ether ketone, polyetherimide, polyethylene, polyphenylene oxide, polyphenylene sulfide, polypropylene, polystyrene, polyvinyl chloride, polyvinylidene fluoride, and polytetrafluoroethylene. Preferably, the plastic is any one or (where the context allows) any combination of: a polyamide, nylon and polypropylene. For example, the plastic may be nylon 6 / 10. A particular benefit of nylon and polypropylene is their low friction properties. In one option, the plastic is a reinforced plastic, such as a glass fiber reinforced plastic. For example, the plastic may be glass fiber reinforced nylon, e.g. glass fiber reinforced nylon 6 / 10. Preferably, any one or (where the context allows) any combination of: the cup portion, the pair of arms, the mounting portion, the upper region, and the spanning regions, comprise (or consist of) the resilient material (or the plastic or the thermoplastic). Preferably, the support member is mountable to and subsequently dismountable from the vertical support by tilting (or pivoting) the support member about a lateral axis (e.g. about a z-axis). This process is discussed in further detail below. In a second aspect of the invention, there is provided a pair of support members, each as defined in the first aspect. In a third aspect of the invention, there is provided a show jumping kit (or a show jumping obstacle kit). Preferably, the kit comprises: one or a pair of support members, for example each as defined in the first aspect; one or a pair of vertical supports, and optionally, a pole for being retained at an elevated height by the support member(s). Preferably, the vertical support (or vertical supports) corresponds to the support member (or support members). Herein, where the context allows, reference to an element (e.g. the vertical support) in the singular may also be reference to a plurality of (e.g. each of a pair) of that element. Preferably, the support member is reversibly mountable to the vertical support. Preferably, the vertical support is a cylindrical vertical support. Optionally, the vertical support comprises an integral base. In a further option, the kit further comprises one or a pair of bases. Preferably, each base corresponds with a vertical support. Preferably, a base (integral with the vertical support or not) is configured for maintaining the (corresponding) vertical support in an upright position. Preferably, the base is hollow and / or has an internal chamber. Preferably, the base comprises a means of fluid communication between the internal chamber (or hollow) and the exterior of the base. Preferably, the base is configured to be reversibly filled with a ballast. For example, the ballast is or may be water, gravel, and / or sand. Common to all aspects herein, the elevated pole may optionally be a generally horizontal elevated pole. In this case, it is preferred that the elevated pole is supported at both of its (opposite) end regions by a respective support member. However, the elevated pole may optionally be a non-horizontal elevated pole. In this case, one end region of the elevated pole may be supported by a support member, whilst the other (opposite) end region of the elevated pole is disposed, for example: on the floor, proximal to a vertical support base, or on or in a vertical support base. Optionally, the base comprises a recess or indent configured to receive an end region of the (non-horizontal or angled) elevated pole. Preferably, the recess or indent is open-topped and optionally comprises one open side. Preferably, where the context allows, any one or any combination of features of the first aspect may be incorporated into the third aspect. In particular, the support member(s) and / or the vertical support(s) of the third aspect may, where the context allows, be further limited by any one or any combination of features disclosed in the first aspect. In a fourth aspect of the invention, there is provided a method of manufacturing a support member as defined in the first aspect. Preferably, the method comprises moulding or casting the support member. Optionally, the method comprises printing (e.g. 3D printing), thermoforming, and / or machining (e.g. CNC machining) the support member. In a fifth aspect of the invention, there is provided a mold or a cast or an electronically stored representation (or model) corresponding to the support member of the first aspect. Preferably, the mold or the cast is for molding / casting the support member of the first aspect. Preferably, the electronically stored representation or model is for printing (e.g. 3D printing) the support member of the first aspect. In a sixth aspect of the invention, there is provided a method of assembling (or setting) a show jumping obstacle. Preferably, the method comprises providing a support member (or a pair of support members each) as defined in the first aspect. Preferably, the method comprises providing a vertical support or a pair of vertical supports, for example as defined in the first or third aspect. Preferably, the method comprises mounting the support member to a respective vertical support. Preferably, the method comprises locating an end region of a pole in the cup portion of the support member, such that the pole is retained in an elevated position. Preferably, the method comprises inserting a top of the vertical support into a central aperture of the support member. More preferably, the method comprises inserting the top of the vertical support into a central aperture of the support member from the bottom of the support member. Preferably, prior to inserting the top of the vertical support, the support member is titled backward about a lateral axis (e.g. by around 45°). The method preferably further comprises sliding the support member down the vertical support to a pre-defined height relative to the vertical support. Preferably, once the support member is at the pre-defined height relative to the vertical support, the support member is disposed on a protrusion or platform extending from the vertical support as described above. Preferably, once the support member is disposed on a protrusion or platform (or is at the pre-defined height relative to the vertical support), the support member is tilted forward (e.g. in the reverse direction) to an upright position to lock the support member in position on the vertical support. Preferably, to dismount the support member from the vertical support the reverse procedure is followed. The invention will now be described in more detail, without limitation, with reference to the accompanying Figures. In Figure 1, a support member 1 is illustrated in perspective view and is oriented in an upright (in situ) position. The upright position is the position that the support member 1 is in when in use and mounted on a vertical support (e.g. see Figures 4A-D and Figure 6). As discussed in the general description above, the support member 1 may also be referred to as a jump cup 1. The support member 1 comprises a cup portion 3 and a mounting portion 5. The cup portion 3 and the mounting portion 5 are integral with respect to each other. As such, the support member lisa single integral unit. The support member 1 is made from a thermoplastic (e.g. polypropylene or nylon) and is moulded as the single integral unit. The support member 1 is reversibly deformable (or resilient). The support member 1 may be bent out of its original (moulded) shape when a deforming force is applied to it. Subsequently, when the deforming force is removed, the support member 1 returns to its original (moulded) shape. The cup portion 3 is configured for retaining an end region (67, fig. 6) of a pole (65, fig. 6), such as the types of pole used in show jumping. Said poles typically have an elongate cylindrical shape. With reference to the axes illustrated throughout the Figures, the pole (65, fig. 6), when in position on the cup portion 3, typically extends from the cup portion 3 in the x axis direction. However, in alternative embodiments of the invention, the cup portion 3 may support (or be adapted to support) a pole disposed in a non-horizontal orientation. The mounting portion 5 is configured for reversibly mounting the support member 1 to an elongate cylindrical vertical support (59, fig. 6) at a point along the length of the vertical support (59, fig. 6). The support member 1 may therefore be reversibly mounted to a vertical support (59, fig. 6) at a given height with respect to the vertical support (59, fig. 6). As discussed in the general description above, the vertical support (59, fig. 6) may also be referred to as a jump stand or jump wing. Each of a pair of support members 1 may, respectively, be mounted to alternative ones of a pair of vertical supports (59, fig. 6). As such, as illustrated in Figure 6 and described in further detail below, a pair of mounted support members 1 may be used to retain opposite end regions (67, fig. 6) of a pole (65, fig. 6), for supporting the pole (65, fig. 6) in an elevated position, typically horizontal to the ground. The elevated pole (65, fig. 6) may be used in show jumping sports, such as equestrian or canine show jumping. With reference to the axes illustrated in Figure 1 (and used consistently throughout the figures), the cup portion 3 is disposed towards the front of the support member 1 and the mounting portion 5 extends from the cup portion 3 towards the rear of the support member 1. The length of the support member 1 is measured in the front to rear direction (i.e. the x axis direction). Similarly, the cup portion 3 is also disposed towards the bottom of the support member 1 and the mounting portion 5 extends from the cup portion 3 towards the top of the support member 1. The height of the support member 1 is measured in the bottom to top direction (i.e. the y axis direction). Viewed from the front of the support member 1, the distance from the left-most extent (left-hand side) to the right-most extent (right-hand side) of the support member 1, more particularly of the mounting portion 5, is the width of the support member 1. The width of the support member 1 is measured in the side-to-side or lateral direction (i.e. the z axis direction). As such, the z axis is perpendicular (normal) to the x and y axes. Furthermore, the support member 1 is generally symmetrical in the x-y plane. The cup portion 3 will now be discussed in further detail. The cup portion 3 comprises a pair of arms 7. The arms 7 are symmetrical in the x-y plane and extend in the forward direction from respective ones of a pair of stops 19. A bottom region of the support member 1 comprises the cup portion 3 including the arms 7. The pair of arms 7 define therebetween a slot (or gap or opening) 9. The width of the slot 9 is around 5 cm, or around 2.5 times the width of an arm 7. The length of the slot 9 is generally equal to the length of the arms 7, said length being approximately 8.5 cm. The arms 7 terminate at their respective front ends 15, which front ends 15 define the front of the support member 1. The arms 7 are elongate and straight. Each arm 7 comprises a slightly concave (or dished) contact surface 11 configured for corresponding with a portion of a convex surface of an end region (67, fig. 6) of a cylindrical pole (65, fig. 6). Despite their slight curvature, generally the contact surfaces 11: face upward and inward at an approximately 45° angle with respect to the y and z axes; and are parallel with respect to the x axis. In cross-section, the contact surfaces 11, each having the same slight radius of curvature, define minor (non-overlapping) arcs of a given circle (see dot-dash circle on Figure 3 A). As such, when an end region (67, fig. 6) of a corresponding cylindrical pole (65, fig. 6) is placed on top of the arms 7, the end region (67, fig. 6) contacts the contact surfaces 11 and is therefore snugly retained or cupped by the arms 7. The pole (65, fig. 6) cannot roll off or be knocked off the cup portion 3 In a lateral (e.g. z axis) direction unless a certain degree of lateral force is applied to the pole (65, fig. 6). During show jumping, if an animal such as a horse makes minor lateral contact with a pole (65, fig. 6) supported at each of its ends (67, fig. 6) by a corresponding supporting member 1, the pole (65, fig. 6) will be retained by the two supporting members 1, particularly by the respective cup portions 3 of said supporting members 1. However, if the animal makes strong lateral contact with the pole (65, fig. 6), the pole (65, fig. 6) will be knocked off the two supporting members 1 and drop to the floor (71, fig. 6). In the latter case, injury to the animal (and / or its rider) is avoided. Each arm 7 comprises a rounded (convex) bottom surface 13, which bottom surface 13 faces downward and is opposite to the contact surface 11 of the respective arm 7. Similarly to the contact surfaces 11, the bottom surfaces 13 are parallel with respect to the x axis. The end 15 and the two (outer / upper and inner / lower) edges 17 of each arm 7 are also rounded (or bevelled). Although the contact surface 11 of each arm 7 is slightly concave, the cross-sectional shape of each arm 7 is generally semi-circular. The rounded surfaces of the arms 7 provide for an improved level of safety for any animal (or the rider of such an animal) that contacts the support member 1 during show jumping. This is because the cup portion 3 (and the support member 1 generally) is absent any edges or ends comprising a sharp point / comer. Nevertheless, the semi-circular cross-sectional shape of each arm 7 provides a reasonable degree of strength and rigidity to each arm 7. Each arm 7 has a thickness 18 of around 14 mm. The cup portion 3 further comprises a pair of stops (or buffers) 19. Each stop 19 is directly adjacent (or adjoins or is contiguous with) a rear end 16 of a respective one of the pair of arms 7. When the support member 1 is in use, the stops 19 are located between the vertical support (59, fig. 6) and the end of a pole (65, fig. 6) supported by the support member 1. Therefore, the stops 19 are configured to prevent the end of a supported pole (65, fig. 6) from knocking or bumping into the vertical support (59, fig. 6). The stops 19 prevent the end of a pole (65, fig. 6) and the vertical support (59, fig. 6) from damaging each other in the event the pole (65, fig. 6) moves, e.g. is knocked, in the x direction. Each stop 19 is generally cuboid in shape. The outer edge 17 of each arm 7 and the outer edge 24 of the respective adjacent stop 19 have the same lateral extent. The inner edge 25 of each stop 19 is located inward of the inner edge 17 of the respective adjacent arm 7. (However, this is not essential, instead the inner edge 25 of each stop 19 and the inner edge 17 of the respective adjacent arm 7 may have the same lateral extent). The width of each stop 19 is around double the width of each arm 7. The lowest extent of each arm 7 (which is located at the bottom surface 13 proximal to the inner edge 17 of the respective arm 7) corresponds (or is level) with the lower edge (at reference number 19, fig. 1) of each stop 19. The upper edge 20 of each stop 19 is located upward of the outer edge 17 of the respective adjacent arm 7. (However, this is not essential, instead the upper edge 20 of each stop 19 may be level with the outer edge 17 of the respective adjacent arm 7). The height of each stop 19 is around 60 % larger than the height of each arm 7. Each stop 19 may be described as an inwardly extending knuckle. Each stop 19 comprises a planar and generally rectangular contact surface 21 configured for contacting or abutting an end of a pole (65, fig. 6) retained on the cup portion 3. The contact surfaces 21 are parallel with the y-z plane and face the forward direction. The arm 7 adjacent to a respective stop 19 extends forward in a contiguous manner from an outer, bottom corner of the contact surface 21 of the respective stop 19. Each stop 19 further comprises a rear (not shown). The mounting portion 5 is directly adjacent (or adjoins or is contiguous with) the stops 19 at the rear (not shown) of the stops 19. As such, the mounting portion 5 extends backward from the rears (not shown) of the pair of stops 19. The stops 19 define therebetween an auxiliary slot (or gap or opening) 23. The width of the auxiliary slot 23 is around twice the width of an arm 7. The auxiliary slot 23 is directly adjacent (or contiguous with) the slot 9. As such, although the auxiliary slot 23 has a smaller width (of around one half) that of the slot 9, the auxiliary slot 23 may be considered a continuation of the slot 9. Alternatively, the auxiliary slot 23 and the slot 9 may have the same width, for example of around 5 cm. Thus, there is a continuous slot 9, 23 through the cup portion 3 in the x axis (or the front-to-back) direction. Furthermore, it can be described that the support member 1 defines a loop shape comprising a break (in the loop) at its front or that the support member 1 defines a non-continuous loop shape. Using alternative language it can be described that the support member 1 defines a C-shape, wherein the continuous slot 9, 23 located at the front of the support member 1 defines the opening of the C-shape. Although this break / non continuity / opening is visible in Figure 1, this feature is particularly clear when the support member 1 is viewed in plan view (see Figure 2). The continuous slot 9, 23 allows the support member 1 to reversibly deform in such a way that, when a downward force is applied to the cup portion 3 via a retained pole (65, fig. 6), the width of the slot 9 can increase for allowing the retained pole (65, fig. 6) to pass through it and drop to the floor (71, fig. 6). This function is described in further detail below. The mounting portion 5 will now be discussed in further detail. The mounting portion 5 comprises an elongate (or loop) member 27. The elongate member 27, if flattened, would have a two-dimensional bell shape (e.g. a bell curve shape). The elongate member 27 comprises opposite ends 36 that, respectively, are directly adjacent to (or adjoin or are contiguous with) the rears (not shown) of alternative ones of the pair of stops 19. The elongate member 27 has a consistent thickness 45 of around 8 mm that is generally the same thickness 26 of the stops 19. The elongate member 27 has a variable depth (see 39, 41, and 43) along its length. Along its full length, the thickness 45 of the elongate member 27 is at most half its depth (see 39, 41, and 43). In the context of the elongate member 27, its length is measured from its end 36 to its opposite end 36. The elongate member 27 has rounded or bevelled corners 57. The elongate member 27 has a continuous upper edge 29 and a continuous lower edge 31 that generally correspond with each other. In plan (i.e. top down) view, as illustrated in Figure 2, the elongate member 27 has a (non-continuous) loop or circle shape comprising a break at the front of the elongate member 27. Using alternative language, in plan (i.e. top down) view, as illustrated in Figure 2, the elongate member 27 has C-shape, wherein the opening of the C-shape is located at the front of the elongate member 27. The break or opening at the front of the elongate member 27 corresponds with slot 23 between the stops 19. The elongate member 27 comprises an inner surface 53 and an outer surface 51 (which is opposite to the inner surface 53). The inner surface 53 of the elongate member 27 defines a three-dimensional cylindrical column of space which will be referred to as a central aperture 47. The elongate member 27 is configured to receive a cylindrical vertical support (59, figs. 4A-D) in its central aperture 47. When a cylindrical vertical support (59, figs. 4A-D) having a diameter (e.g. of around 95 mm) corresponding to the diameter (48, fig. 2) of the central aperture 47 is located within the central aperture 47, the elongate member 27 wraps snugly around the circumference of the cylindrical vertical support (59, figs. 4A-D); that is, the inner surface 53 of the elongate member 27 corresponds with and directly abuts the outer surface of the corresponding cylindrical outer support (59, figs. 4A-D). The diameter (48, fig. 2) of the central aperture 47 may be configured to be a few mm larger than the diameter of a corresponding cylindrical outer support (59, figs. 4A-D). The elongate member 27 may be divided into one upper region 33 and two spanning regions 35. The spanning regions 35 span between the upper region 33 and the cup portion 3. Dashed lines 37 indicate the approximate locations along the length of the elongate member 27 where the elongate member 27 is conceptually divided into the aforementioned regions. The spanning regions 35 are and the upper region 33 is generally symmetrical in the x-y plane. Generally, in the upper region 33, the continuous upper edge 29 and the continuous lower edge 31 are flat. Generally, in the spanning regions 35, the continuous upper edge 29 and the continuous lower edge 31 are curved. When viewed from the side of the support member 1, the spanning regions 35 extend backward from the cup portion 3, towards respective ends (around 37) of the upper region 33, in an S-shape. However, other shapes that are alternative to an S-shape, such as a straight shape, may be used. As the spanning regions 35 extend backward, they also extend outward (laterally) in a curved shape and upward. The purpose of the spanning regions 35 is to snugly wrap around the sides of a vertical support (59, figs. 4A-D). The spanning regions 35 separate (span between) the upper region 33 and the cup portion 3. Because the spanning regions 35 extend upward, the upper region 33 of the elongate member 27 is positioned above the cup portion 3 by a separation distance of around 7 cm. Because the spanning regions 35 extend backward, the upper region 33 of the elongate member 27 is positioned behind the cup portion 3 by a separation distance of around 9 cm. As the spanning regions 35 extend backward from the cup portion 3, their depth (see 39 and 41) gradually increases until around their lengthwise mid-point (around 41). As the spanning regions 35 continue to extend backward from around their lengthwise mid-point, their depth then gradually decreases. The depth of a spanning region 35 at a particular point along its length is measured along the line which intersects that point and which is perpendicular to the tangent of the radius of curvature at that point. The transition (see dashed lines 37) on the elongate member 27 as the spanning regions 35 transition into the upper region 33 is a smooth transition; the edges 29 and 31 have a continuous, smooth curvature around the area of the dashed line 37. However, this is not essential. The lower edge 31 (and the opposite upper edge 29) in the upper region 33 is generally straight and flat (e.g. planar). As such, the upper region 33 has a generally flat bottom 55. As discussed above, in plan view, the elongate member 27 has a (non-continuous) loop or circle shape, which can also be described as a C-shape. The upper region 33, in plan view, extends along an around 90° arc centered at the rear of the elongate member 27. At either end of the 90° arc, the upper region 33 transitions into the respective spanning regions 35 and thus begins to extend downward. Figure 2 is a plan (top down) view of the support member 1 of Figure 1. In Figure 2 and throughout the figures, the same reference numerals are used for the same features. In Figure 2, the diameter of the central aperture 47 is denoted by 48. The C-shape of the mounting portion 5 (of the elongate member 27) is particularly apparent in Figure 2. Figures 3 A to 3D illustrate how the support member 1 reversibly deforms, when a downward force is applied to the cup portion 3 via a retained pole (65, fig. 6), such that the width of the slot 9 increases for allowing the retained pole (65, fig. 6) to pass through it and drop to the floor (71, fig. 6). Figures 3A and 3B are front views, while Figures 3C and 3D are perspective views, of the support member 1 of Figure 1. In Figures 3 A and 3C, the support member 1 is in its original (or resting or non-deformed) state. When the support member 1 is in its original state, the width of the slot 9 is not large enough to allow a pole having a pre-defined diameter to pass through it. See the dot-dash cross-section of a pole in Figure 3 A, wherein the diameter of the pole is larger than the width of the slot 9. When a downward force is applied to a pole (e.g. 65, fig. 6) supported by cup portion 3, this causes the support member 1 to reversibly deform such that the width of the slot 9 increases. It is believed that this occurs through a combination of two modes of reversible deformation. In a first mode of reversible deformation, as illustrated in Figures 3 A and 3B, the elongate member 27 may bend or flex outwardly about axes such as Y prime. Bending may be distributed along the full length of the elongate support 27 and also through the cup portion 3. The first mode of reversible deformation causes the arms 7 to move away from each other in a horizontal abduction motion, as denoted by arrows 28 (i.e. in the x-z plane). Figure 3B illustrates the support member 1 after its arms 7 have been abducted horizontally. The arms 7 are no longer parallel and the width of the slot 9 is largest proximal the front ends 15 of the arms 7. In a second mode of reversible deformation, as illustrated in Figures 3C and 3D, the elongate member 27 may bend or flex outwardly about axes such as X prime. Bending may be distributed along the full length of the elongate support 27 and also through the cup portion 3. The second mode of reversible deformation causes the arms 7 to move away from each other in a vertical abduction motion, as denoted by arrows 30 (i.e. in the y-z plane). Figure 3D illustrates the support member 1 after its arms 7 have been abducted vertically. In this case, although the width of the slot 9 increases, the arms 7 remain parallel with respect to each other. When the support member 1 is in use, it is expected that a downward force applied to the cup portion 3 via a retained pole (e.g. 65, fig. 6) will cause the support member 1 to bend via a combination of the first and second modes of reversible deformation as described above. In turn, the width of the slot 9 will increase due to a combination of horizontal and vertical abduction of the arms 7. As a result, the width of the slot 9 becomes large enough for a corresponding pole to pass through it when a downward static force of from 120 to 150 dekanewtons (daN) is applied to said pole. Once the pole has passed down through the slot 9 and dropped to the floor, and the support member 1 is thus relieved of any downward force, the support member 1 returns to its original (nondeformed) shape as illustrated in Figure 3A and 3C. Figures 4A and 4B are illustrations of the support member 1 of Figure 1 mounted (in situ) on a cylindrical vertical support 59. Figure 4A is a front view while Figure 4B is a rear view. The vertical support 59 comprises a series of equally spaced protrusion (or ears) 61 along its length. That is, the vertical support 59 comprises a series of equally spaced protrusions (or ears) 61 disposed at different heights. The protrusions 61 each extend backward from the rear of the vertical support 59 by a distance of around 1.5 cm and have a width of around 13 mm. Each protrusion 61 has a planar upper contact surface (not shown). The flat lower edge 31 of the upper region 33 (also referred to above as the flat bottom 55) rests on top of one of the rear protrusions 61. In Figures 4A and 4B, the upper region 33 is centred with respect to the protrusion 61 upon which it rests; when assembling the support member 1 and a vertical support 59, this is the correct starting alignment for setting up a jumping fence. It is apparent in Figures 4A and 4B how the support member 1 is securely mounted (or locked) in place on a vertical support 59. Because the cup portion 3 is disposed in front of and below the upper region 33, when the upper region 33 rests on a protrusion 61 the support member 1, due to gravity, naturally swings down (about a pivot proximal protrusion 61) such that the centre of mass of the support member 1 is located directly below the upper region 33. However, once the rears (not shown) of the stops 19 of the cup portion 3 contact a front surface 58 of the vertical support 59, the support member 1 is prevented from swinging further and is thus locked in place. Furthermore, particularly once the weight of a supported pole (e.g. 65, fig. 6) produces a static downward force on cup portion 3, it is unlikely that a minor knock to the support member 1 in an upward direction will dislodge the support member 1 from the vertical support 59. Because the lower edge 31 of the upper region 33 is generally flat (e.g. planar), the support member 1 can swivel relative to the cylindrical vertical support 59 (i.e. can rotate about the y-axis) with little resistance. The upper region 33, in plan view, extends along a 90° arc (see Figure 2). As such, as illustrated in Figures 4C (front view) and 4D (rear view), beginning from the correct starting alignment the support member 1 can swivel relative to the cylindrical vertical support 59 by around 45° in either direction while remaining mounted to the vertical support 59. By with little resistance, it is meant that the height of the support member 1 relative to the vertical support 59 does not need to increase for the support member 1 to swivel. An advantage of this function is that, during show jumping, if an animal makes more than minor lateral contact with a pole (65, fig. 6) supported at each of its ends by a support member 1, the support members 1 will readily swivel relative to their respective vertical support 59 and release the pole (65, fig. 6) for dropping to the floor. At the same time, the support members 1 are undamaged and remain in place (at the original height) on the vertical support 59. Still further, if an animal makes direct lateral contact with a support member 1, because the cup portion 3 including the arms 7 (which extend in the x axis direction) swivel, the probability of injury to the animal (and / or its rider) caused by the cup portion 3 is low. Once the support member 1 has swiveled by around 45° relative to the cylindrical vertical support 59, the protrusion 61 extending from the rear of the cylindrical vertical support 59 is located adjacent a transition 37 from the upper region 33 to a spanning region 35. That is, the protrusion 61 extending from the rear of the cylindrical vertical support 59 is located adjacent a downward projection. This is illustrated in Figures 4C and 4D. At the transition 37, the elongate member 27 begins to extend downward and, therefore, swiveling of the support member 1 past around 45° from the correct starting alignment of the support member 1 relative to the vertical support 59 is prevented (or resisted). In Figure 5, there is illustrated a plan view of the support member 1 of Figure 1 in a tilted orientation. The support member 1 is tilted from the upright orientation (see fig. 1) about the z-axis by around 45°. That is, the front of the support member 1 has been tilted up and the rear of the support member 1 has been tilted down. In this tilted orientation, the length 48 prime of the aperture 47 is greater than the diameter (48, fig. 2) of the aperture 47 when the support member is in its upright position. When mounting the support member 1 to a vertical support (59, figs. 4), the support member 1 slides down the vertical support (59, figs. 4) in this tilted orientation. The length 48 prime of the aperture 47 is greater than the diameter of the vertical support (59, figs. 4) in combination with the length of the protrusions (61, figs. 4). As such, in the tilted orientation, the support member 1 can travel along the vertical support (59, figs. 4) and pass over the rear protrusions (61, figs. 4). Once the support member 1 is located at the correct point along the length of the vertical support (59, figs. 4), the support member 1 is tilted back into its upright orientation (e.g. see fig. 1) for mounting (or locking) the support member 1 in place as described above. The support member 1 can be removed from the vertical support (59, figs. 4) or the height of the support member 1 relative to the vertical support (59, figs. 4) can be adjusted by following the reverse procedure. This slide-tilt-lock procedure allows the support member 1 to be assembled with or adjusted on a vertical support (59, figs. 4) with ease. Figure 6 is a perspective view of a pair of support members 1 supporting opposite end regions 67 of a pole 65 at an elevated height. A pair of vertical supports 59, each having a base 63, are placed on the ground 71. Each vertical support 59 comprises a rear channel (not shown) for receiving and retaining a rail 69, the rail 69 comprising a series of equally spaced rear protrusions 61. Figure 6 is an example of how a pair of support members 1 may used as part of a kit, the kit further comprising a pair of vertical supports 59 and a pole 65, to support and retain the pole 65 in an elevated position. Figure 7 is a perspective view of an alternative support member 1 ’. The invention has been described with reference to preferred embodiments. Where the context allows, any feature or any combination of features of the preferred embodiments may be incorporated into the aspects of invention above. It will be appreciated that variations of and modifications to the preferred embodiments can be effected by a person of ordinary skill in the art without departing from the scope of the invention.

Claims

1. A support member for use in show jumping, the support member comprising:5 a mounting portion for reversibly mounting the support member toa vertical support; anda cup portion for retaining an end region of an elevated pole, wherein the support member is configured to reversibly deform, such that the end region of the elevated pole may pass through the cup portion or be10 released from the cup portion, when a downward force applied to the elevated pole reaches or exceeds a pre-defined force threshold, andwherein the mounting portion is generally C-shaped.

2. A support member as claimed in claim 1, wherein at least the mounting15 portion and / or the cup portion is / are configured to reversibly deform, such that the end region of the elevated pole may pass through the cup portion or be released from the cup portion, when a downward force applied to the elevated pole reaches or exceeds the pre-defined force threshold.20 3. A support member as claimed in claim 1 or claim 2, wherein the cupportion comprises a longitudinal slot,and wherein the support member is configured to reversibly deform, such that the end region of the elevated pole may pass (or drop) through the longitudinal slot, when a downward force applied to the elevated pole reaches or25 exceeds the pre-defined force threshold.

4. A support member as claimed in claim 3, wherein the width of the longitudinal slot increases, such that the end region of the elevated pole may pass (or drop) through the longitudinal slot, when a downward force applied to the30 elevated pole reaches or exceeds the pre-defined force threshold.

5. A support member as claimed in claim 3 or claim 4, wherein the cup portion further comprises a pair of arms for retaining the end region of the elevated pole, the longitudinal slot located between the pair of arms.5 6. A support member as claimed in claim 5, wherein the pair of arms moveaway from each other: as the support member reversibly deforms and / or as a downward force is applied to the elevated pole.

7. A support member as claimed in claims 5 or claim 6, wherein the pair of10 arms abduct as the support member reversibly deforms.

8. A support member as claimed in any one of the preceding claims, wherein the cup portion is generally U-shaped or arc-shaped.15 9. A support member as claimed in any one of the preceding claims, whereinthe support member remains mounted on the vertical support as the support member deforms and / or wherein the support member is reusable after the end region of the elevated pole has passed through or has been released from the cup portion.2010. A support member as claimed in any one of the preceding claims, wherein the pre-defined force threshold is from 40 to 230 dekanewtons (daN).

11. A support member as claimed in any one of the preceding claims, wherein 25 the opening of the C-shape corresponds with a longitudinal slot of the cup portion.

12. A support member as claimed in any one of the preceding claims, wherein the mounting portion is configured to rest on a protrusion or platform extending from the vertical support.3013. A support member as claimed in any one of the preceding claims, wherein the support member, when mounted to a cylindrical vertical support, is configured to rotate about the circumference of the cylindrical vertical support.5 14. A support member as claimed in any one of the preceding claims, whereinthe mounting portion comprises:an upper region comprising a straight and / or flat lower edge; and two spanning regions, each spanning region spanning between arespective end of the upper region and the cup portion.CXI15. A support member as claimed in claim 14, wherein the upper region occupies or defines an arc of a circle.

16. A support member as claimed in claim 14 or claim 15, wherein the cup15 portion is disposed below the upper region by a vertical distance of at least 2 cm.

17. A support member as claimed in any one of the preceding claims, wherein the mounting portion defines a central aperture for receiving the vertical support.20 18. A support member as claimed in any one of the preceding claims, whereinthe mounting portion is configured to wrap around the vertical support.

19. A support member as claimed in any one of the preceding claims, wherein the support member comprises or consists of a resilient material.

20. A support member as claimed in any one of the preceding claims, wherein the support member is mountable to and subsequently dismountable from the vertical support by tilting the support member about a lateral axis.30 21. A pair of support members, each as defined in any one of claims 1 to 20.

22. A show jumping kit, the kit comprising: one or a pair of support members each as defined in any one of claims 1 to 20, one or a pair of vertical supports, and optionally, a pole for being retained at an elevated height by the support member(s).

523. A method of manufacturing a support member as defined in any one of claims 1 to 20.

24. A method of assembling (or setting) a show jumping obstacle, the method 10 comprising: providing a support member (or a pair of support members each) as defined in any one of claims 1 to 20; optionally providing a vertical support or a pair of vertical supports; mounting the support member to a respective vertical support; and locating an end region of a pole in the cup portion of the support member, such that the pole is retained in an elevated position.17 1024

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