Patent Publication Number: US-2023149769-A1

Title: Training apparatus

Description:
BACKGROUND 
     This application is a continuation of U.S. patent application Ser. No. 17/162,925 which was filed on Jan. 29, 2021 and is still pending. That application, in turn, is a continuation of U.S. patent application Ser. No. 16/834,337 which was filed on Mar. 30, 2020 and has issued on Feb. 16, 2021 as U.S. Pat. No. 10,918,902. That application, in turn, is a continuation of U.S. patent application Ser. No. 15/006,813 which was filed on Jan. 26, 2016 and has issued on Apr. 21, 2020 as U.S. Pat. No. 10,625,111. The disclosures of those applications are incorporated hereinto by reference in their entirety. 
     The invention relates to training apparatus. 
     It is known from WO2014/027086 to provide training apparatus comprising exercise equipment and a shipping container. Using a vehicle, the training apparatus is transported with the exercise equipment contained in the shipping container. After the training apparatus has been transported to a site where it is to be used for training, it is removed from the vehicle and the exercise equipment is unpacked from the shipping container and assembled by attachment to the outside of the shipping container. This type of training apparatus is readily transportable to a site where it is to be used, but time and effort are required to remove it from the vehicle used to transport it and to position it on the ground. After the training apparatus has been used, time and effort are also required to load it into or onto the vehicle before it is ready for transport. 
     It is known from U.S. Pat. No. 8,485,951 to provide vehicle mounted training apparatus which provides for resistance tube training. 
     BRIEF SUMMARY 
     According to a first aspect the invention provides training apparatus comprising a land vehicle provided with exercise equipment, wherein the exercise equipment comprises a support structure which, when in an exercising condition for use when the land vehicle is stationary, is attached to an outside surface of the land vehicle. 
     Because the training apparatus comprises a land vehicle, once the training apparatus has arrived at a site it is not necessary to unload the training apparatus and place it on the ground, nor is it necessary to reload it after use. 
     In an embodiment, the land vehicle is a trailer with wheels. The trailer can be transported by being towed on its wheels, and the wheels can remain in place when the trailer is stationary and the exercise equipment is being used for exercise. The trailer may comprise a box, such as an ISO shipping container. The exercise equipment can be used without having to remove the box from the wheels. The outside surface of the land vehicle may belong to a side wall or a roof of the trailer. 
     The support structure may be configured to engage the ground when it is in the exercising condition. The support structure may comprise a ground engaging leg. The ground engaging leg can improve the stability of the land vehicle during exercise by a user, for example by helping to prevent it from rocking on a suspension. 
     The support structure may comprise an arm member which projects away from the outside surface when the support structure is in the exercising condition. 
     When the support structure is in the exercising condition, at least a portion of the support structure may be spaced from the outside surface. The portion may be a support portion which provides support for an exercise bar so as to support the exercise bar horizontally. 
     The outside surface of the land vehicle may be a vertically extending outside surface, such as a side surface of a trailer. 
     The outside surface of the land vehicle may be a roof surface, such as roof surface of a trailer. 
     The exercise equipment may comprise cantilevered exercise apparatus having a cantilever component which projects away from the outside surface and does not engage the ground when the cantilevered exercise apparatus is in an exercising configuration. The cantilever component may extend upwardly in a direction intermediate between horizontal and vertical, when the cantilevered exercise apparatus is in the exercising configuration. 
     The land vehicle may comprise a trailer which comprises a container, and the exercise equipment may comprise cantilevered exercise apparatus which projects away from the container and does not engage the ground when the cantilevered exercise apparatus is in an exercising configuration, the cantilevered exercise apparatus having at least one exercise bar to be gripped by a user during exercise, and the cantilevered exercise apparatus having a distal end and a proximal end at which a container attachment portion of the cantilevered exercise apparatus is located, the container attachment portion at the proximal end of the cantilevered exercise apparatus being fixed to the container and the cantilevered exercise apparatus extending from the container attachment portion thereof upwardly in a direction intermediate between horizontal and vertical when the cantilevered exercise apparatus is in the exercising configuration. 
     Thus, the cantilevered exercise apparatus cantilevers out from the container and is supported only by the container, and not from the ground. It is therefore not necessary to assemble any ground engaging structure to support the cantilevered exercise apparatus, thereby assisting convenient deployment of the cantilevered exercise apparatus when it is required for exercise. 
     In embodiments, the proximal end of the cantilevered exercise apparatus, being at the “root” of the cantilever, is thus positioned at a container wall, i.e. the cantilevered exercise apparatus cantilevers out directly from a container wall. The wall may be a side or roof of the container or at a region where the side and the roof meet. 
     The support structure may be configured to adopt a stowed condition for use during locomotion of the land vehicle. The stowed condition may involve stowing the support structure elsewhere other than on the outside surface, i.e. elsewhere on the outside of the vehicle or inside the vehicle. For example, the stowed condition of the support structure may be a condition in which the support structure is inside the vehicle. 
     In embodiments, the support structure may be maneuverable by pivoting with respect to the outside surface of the land vehicle whilst remaining attached thereto, between a stowed condition for use during locomotion of the land vehicle, and the exercising condition for use when the land vehicle is stationary. 
     Thus, the support structure of the exercise equipment may be conveniently stowed during locomotion of the vehicle and may then be maneuvered by pivoting when the vehicle is stationary to an exercising condition allowing for the exercise equipment to be used. 
     In embodiments, the outside surface of the land vehicle may be a vertically extending outside surface, and the support structure may be maneuverable, whilst remaining attached to the vertically extending outside surface, between a stowed condition for use during locomotion of the land vehicle, and the exercising condition for use when the land vehicle is stationary. 
     Thus, during locomotion of the land vehicle the support structure of the exercise equipment may be conveniently attached to a vertically extending outside surface of the land vehicle, and then when it is desired to use the exercise equipment with the land vehicle stationary, the support structure may be maneuvered whilst remaining attached to the outside surface of the land vehicle to the exercising condition. 
     In embodiments, the support structure may be maneuverable between a stowed condition attached to the outside surface of the land vehicle for use during locomotion of the land vehicle, and the exercising condition attached to the outside surface of the land vehicle for use when the land vehicle is stationary, and the support structure may be configured to engage the ground when it is in the exercising condition. 
     Thus, in this arrangement, the exercise equipment is both attached to the outside of the land vehicle and in engagement with the ground when it is to be used. The exercise equipment may then be deployed in a stable manner. 
     In embodiments, the support structure is maneuverable between a stowed condition attached to a roof surface of the land vehicle for use during locomotion of the land vehicle, and the exercising condition attached to the roof surface of the land vehicle for use when the land vehicle is stationary. 
     With such an arrangement the support structure may be conveniently in the stowed condition attached to the roof surface of the land vehicle during locomotion thereof, and then when it is desired to use the exercise equipment with the land vehicle stationary the support structure can be conveniently maneuvered to the exercising condition. 
     In the above embodiments of the invention in which the support structure is stowed in a condition attached to the outside surface of the land vehicle, it is possible to move the training apparatus from one place to another and to use it for exercise in a very quick and convenient manner compared to the more time consuming process involved in the transport and use of known transportable training apparatus which has to be unpacked and then assembled. 
     The land vehicle may comprise a trailer and the outside surface or the roof surface may belong to the trailer. In some embodiments, the training apparatus may be transported by towing the trailer and can be used for exercise when the trailer is stationary by maneuvering the support structure from the stowed condition to the exercising condition. By providing the support structure in the stowed condition on the outside of the trailer, whether on a vertically extending side, front or rear wall thereof, or a roof surface thereof, it can readily be maneuvered to the exercising condition also attached to the same surface. After the exercise equipment has been used for exercise, the support structure can be easily stowed again so that the land vehicle, e.g. the trailer, is ready for transport. 
     The invention also extends to exercise equipment comprising a support structure adapted to be attached to a land vehicle to form training apparatus in accordance with any of the aspects or embodiments of the invention described herein. The various optional features of the exercise equipment may also be provided. 
     There are aspects of the present invention which are applicable more widely than to land vehicles, in particular being for mounting to any surface. In this much broader context, it is known from US 2015/0290488 to provide a retractable wall mounted exercise rack system having a pair of vertically oriented ground engaging legs which may be lifted and pivoted away from the ground when it is desired to retract the system to a position closer to a wall. Each leg is vertically oriented both when in a position for exercise and when retracted closer to the wall, i.e. the leg is in the same orientation when in the exercise position and when in the retracted position, so that it occupies the same amount of vertical space in both positions. The pivoting between the positions results in horizontal displacement of the leg but does not alter its orientation. 
     According to a second aspect, the invention provides a training apparatus comprising exercise equipment for mounting to a surface, wherein the exercise equipment comprises a support structure which is attachable to the surface and is maneuverable, whilst remaining so attached, between a stowed condition and an exercising condition, the support structure having a ground engaging leg which engages the ground and is in a first orientation when the support structure is in the exercising condition, and which is spaced from the ground and is in a second orientation different from the first orientation, so as to occupy less vertical space than when it is in the first orientation, when the support structure is in the stowed condition. 
     With such an arrangement, when the support structure is in the stowed condition its ground engaging leg occupies less vertical space than when the support structure is in the exercising condition. The training apparatus is therefore useful in situations where there is a restriction on the vertical space available for the training apparatus, for example on a ship when headroom is restricted or a basement or other gymnasium with restricted floor to ceiling space. It is also beneficial where the surface belongs to a land vehicle, such as a trailer, where the ground engaging leg requires a certain length to perform its function during exercise, but when the support structure is stowed it is desired that the ground engaging leg should not project, or should only project a small amount, beyond the dimensions of the land vehicle as viewed in elevation. 
     According to a third aspect the invention provides a training apparatus comprising exercise equipment for mounting to a surface, wherein the exercise equipment comprises a support structure which is attachable to the surface and is maneuverable, whilst remaining so attached, between a stowed condition and an exercising condition, the support structure having at least two ground engaging legs which engage the ground when the support structure is in the exercising condition, and which are spaced from the ground when the support structure is in the stowed condition, and wherein the ground engaging legs are independently maneuverable with respect to each other when the support structure is maneuvered between the stowed and exercising conditions. 
     By providing ground engaging legs which are independently maneuverable with respect to each other the weight of only one leg at a time needs to be dealt with during the maneuver. This in turn can avoid the need for any spring or actuator assistance if a ground engaging leg has to be maneuvered against its weight, thereby providing a simple design of support structure. 
     As with the second aspect, the third aspect of the invention is applicable both to a fixed surface, such as that of a ship or a gymnasium, as well as to a surface which belongs to a land vehicle such as a trailer. 
     Various optional features of the different aspects and embodiments of the invention are discussed below. 
     In embodiments having a stowed condition for the support structure, in the stowed condition the support structure may be adjacent to the surface. 
     More generally, in the exercising condition, at least a portion of the support structure may be spaced from the surface. By providing a support portion spaced from the surface, this can allow an adequate amount of space away from the surface for a user to exercise. The portion may be spaced from the surface by at least 50 cm or 60 cm or 70 cm or 80 cm or 90 cm or 1.0 m. 
     Such a support portion may provide support for an exercise bar. The exercise bar may be arranged so that it is spaced from the surface, for example a surface of a land vehicle such as a trailer. This can allow room for exercise below the bar without interference, e.g. from the land vehicle. The exercise bar may be arranged so that a space below it is uninterrupted between the bar and the ground (or other surface on which a person using the bar for exercise may stand). This will enable a user to use that space when exercising, for example to perform pull-ups. 
     The exercise bar may be gripped by a user during exercise. It may be horizontally arranged, for a user to carry out exercises such as pull-ups, toes to bar, or squats (using weights attached to the exercise bar). The exercise bar may be supported, by the support portion when the support structure is in the exercising condition, in a fixed position spaced from the surface. This is convenient for exercises such as pull-ups or toes to bar. Alternatively the exercise bar may carry weights and be liftable from the support portion, then being used for squats or other weight training exercises. 
     In embodiments having a stowed condition for the support structure, in the stowed condition the support structure may be stowed in a relatively compact manner adjacent to the surface, and then maneuvered to a less compact arrangement when the exercise equipment is to be used for exercising. In the stowed condition substantially the entire support structure may be in a collapsed state in which it lies adjacent to the surface, generally parallel thereto. In the exercising condition the support structure may be pivoted away from the surface, for example to cause the support portion to be spaced from the surface. 
     In one manner of attachment, the support structure may be attached to the surface so as to be maneuverable between the stowed and exercise conditions in a single plane. It may for example be attached by a hinge connection whereby the support structure can pivot in a single plane between the conditions. 
     In other possible arrangements, the support structure may be attached to the surface as to be maneuverable in more than one plane. This could be achieved by a universal joint, such as by a ball and socket, which allows pivoting in a single plane or pivoting in more than one plane. 
     In certain embodiments, the support structure is pivotable about a first axis perpendicular to the surface, and is pivotable about a second axis perpendicular to the first axis. In use, the support structure may be pivoted about the second axis whereby it pivots away from the surface, and it may then be pivoted about the first axis perpendicular to the surface. This arrangement is useful in a situation where one or more components of the support structure, such as a ground engaging leg, may be pivoted away from the surface before being pivoted to a position in which the exercise equipment will be used. 
     The support structure may have an arm member attached to the surface. 
     In embodiments having a stowed condition for the support structure, the arm member may be generally parallel to the surface when the support structure is in the stowed condition. 
     More generally, the arm member may project away from the surface when the support structure is in the exercising condition. It may project away from the surface perpendicularly thereto, for example perpendicularly to a vertical outside surface of a trailer, to a roof of a trailer, or to a wall of a ship or building. It may project in a substantially horizontal direction, for example if it projects from a vertically extending surface, when it may then connect to a ground engaging leg extending downwardly from the arm member to the ground; or the arm member may project upwardly, either upright or intermediate between horizontal and vertical for example, if it projects from a horizontally extending surface, such as a roof surface, when it may then connect to a cantilevered component of the support structure. 
     In the case of a support structure comprising a ground engaging leg, the engagement of the leg on the ground enables the support structure to take loading when it is being used, the loading arising for example from people using the exercise apparatus, such as to do pull-up or toes to bar, or to support weights. 
     In embodiments having a stowed condition for the support structure, when the support structure is in the stowed condition, the leg can be compactly positioned adjacent to the surface, such as a fixed wall or an outside surface of a land vehicle, e.g. a trailer. 
     A ground engaging leg may improve the stability of a land vehicle during exercise by a user, by preventing it from rocking on a suspension, for example. If more than one ground engaging leg is provided, e.g. on opposite sides of the land vehicle, then stability will be further enhanced. 
     The arm member and the ground engaging leg may together form an arm and leg unit, and this unit may have an upside down “L” shape. In the arrangements in which the support structure comprises an arm member connected to a ground engaging leg, it is useful if the arm member is attached to the surface so as to be movable in more than one plane. The arm member and the leg connected thereto may be pivoted so that the leg is moved away from the surface, and then pivoted into the exercising condition in which the leg engages the ground. 
     In embodiments having a stowed condition for the support structure, the ground engaging leg may be generally upright when the support structure is in the exercising condition, and be non-upright, for example horizontal, when the support structure is in the stowed condition. This can enable the length of the leg, which is required below a location at which the leg is supported, e.g. with respect to a trailer, for the leg to reach the ground in the exercising condition, to be accommodated e.g. on the surface, such as the outside of the trailer, in the stowed condition. For example, the leg may be stowed in a horizontal orientation, e.g. in a lengthwise direction of a trailer without projecting beyond the lengthwise ends of the trailer, or projecting only a small amount. 
     In the embodiments in which the support structure has at least two ground engaging legs, in the exercising condition the at least two legs may be spaced apart from each other. They may be interconnected by at least one connecting bar, such as an exercise bar. 
     In embodiments in which the support structure remains attached to the surface in the stowed condition, a first leg may extend adjacent to the surface, e.g. the outside of a trailer, and a second leg may extend next to the first leg. The first leg may then be between the second leg and the surface. Alternatively, both legs may be stowed adjacent to the surface, for example with one leg being positioned above the other. 
     There may be an arm member for each leg. 
     In some embodiments, each arm member may be pivotable about a first axis perpendicular to the outside of the trailer, and may be pivotable about a second axis perpendicular to the first axis. In that case, the second pivot axis of one arm member may be parallel to and offset from the second pivot axis of another arm member. This can allow the arm members, and preferably also the respective legs to which they are connected, to lie in offset planes, e.g. offset vertical planes, when the support structure, i.e. the plurality of arm and leg member units, is in the stowed condition. This may achieve the arrangement mentioned above in which a first leg extends adjacent to the surface, and a second leg extends next to the first leg with the first leg between the second leg and the surface. 
     In embodiments in which the support structure remains attached to the surface, a releasable restraining device may be provided to secure the support structure on the surface when it is in the stowed condition. 
     In the second or third aspect of the invention, or any embodiment in which the support structure adopts a stowed condition and at least one ground engaging leg is provided, the ground engaging leg or legs may be spaced from the ground, when the support structure is in the stowed condition, by at least 20 cm or 30 cm or 40 cm or 50 cm. 
     The exercise equipment of the training apparatus may comprise ground engaging exercise apparatus, which may have one or more ground engaging legs as discussed herein, or it may comprise cantilevered exercise apparatus, or it may comprise both ground engaging exercise apparatus and cantilevered exercise apparatus. In the latter case, the exercise equipment may have first and second support structures, one for the ground engaging exercise apparatus and the other for the cantilevered exercise apparatus. The support structure for the ground engaging exercise apparatus may be attached to a wall surface of a land vehicle, whilst the support structure for the cantilevered exercise apparatus may be attached to a wall or roof surface of the land vehicle. 
     Where both ground engaging exercise apparatus and cantilevered exercise apparatus are provided, this allows for different types of training exercise as well as enabling more than one person to train at one time. 
     The cantilevered exercise apparatus may have a cantilever component. When the cantilevered exercise apparatus is in an exercising configuration, the cantilever component may project away from the surface, e.g. the outside of the trailer, and not engage the ground. The cantilever component may be in the form of an exercise frame, having at least one exercise bar to be gripped by a user during exercise. 
     In embodiments in which the support structure remains attached to the surface, the cantilevered exercise apparatus may extend adjacent to the surface when in a stowed configuration. In the case that the cantilevered exercise apparatus is attached on a horizontal surface, such as on the roof of the trailer, it may then be in a generally horizontal plane when in the stowed configuration. 
     More generally, the cantilevered exercise apparatus may be attached to a vertically extending surface, such as the outside of a trailer at a side thereof, but in embodiments the cantilevered exercise apparatus is attached to a roof surface, for example a roof surface of a trailer. 
     The cantilevered exercise apparatus may be attached both to a side and to a roof of a land vehicle. 
     In embodiments, the cantilevered exercise apparatus remains attached to the surface during maneuvering between the stowed configuration and the exercising configuration. 
     In the embodiments in which the cantilevered exercise apparatus has a cantilever component which projects away from the surface and does not engage the ground when the apparatus is in the exercising configuration, free space can be created below the cantilever component to provide for training exercises, for example pull ups or using monkey bars. By attaching the cantilevered exercise apparatus to a surface of a land vehicle, sufficient vertical space can be easily created below the cantilever component to facilitate this type of exercise. 
     The cantilever component may extend upwardly in a direction intermediate between horizontal and vertical, when the cantilevered exercise apparatus is in the exercising configuration. This can assist with the creation of vertical space below the cantilever component. It can also enable the cantilever component to extend away from the surface as viewed from above. The cantilever component may project away from the surface, e.g. the outside of a trailer when the apparatus is in the exercising configuration and, for some embodiments, may extend adjacent to the surface, e.g. the outside of the trailer, for example horizontally, when the apparatus is in the stowed configuration. 
     In embodiments in which the cantilevered exercise apparatus has stowed and exercising configurations, the cantilever component may comprise a surface attachment portion which is located in a first position when said cantilevered exercise apparatus is in the stowed configuration and which is movable to a second position when said cantilevered exercise apparatus is in the exercising configuration, the surface attachment portion being attached to the surface when in said second position, for example by a releasable anchoring device. 
     The cantilever component may have a distal end portion remote from the surface attachment portion and at a free end of the cantilever component. When the exercise apparatus is in the exercising configuration, the cantilever component may be supported at a location thereon intermediate between the surface attachment portion and the distal end portion. It may be supported by an arm member. 
     The distal end portion may then be spaced apart from the surface. The distal end portion may be at a higher location than the surface attachment portion. 
     In embodiments in which the cantilever component has a surface attachment portion with first and second positions, the cantilever component may remain attached to the surface during the movement of the surface attachment portion from the first position to the second position. It may be arranged to slide and/or pivot, e.g. on the trailer roof, from the stowed configuration to the exercising configuration. 
     In certain embodiments, where an arm member and a cantilever component as mentioned above are provided, the arm member may be pivotally mounted to the surface, e.g. the outside of the trailer, so as to be able to pivot to its deployed mode in which it projects away from the surface, and the cantilever component may be pivotally mounted to the arm member about a cantilever component pivot axis. This pivot axis may be positioned intermediate the surface attachment portion and the distal end portion of the cantilever component. 
     In operation, in order for the cantilevered exercise apparatus to move from its stowed configuration to its exercising configuration, the arm member is pivoted away from the surface, e.g. the outside of the trailer, causing the cantilever component pivot axis to move away from the surface. 
     The surface attachment portion may then be fixed to the surface, whereby the cantilever component extends from its surface attachment portion, via the cantilever component pivot axis where it is supported by the arm member, to its distal end portion spaced apart from the surface. Thus the part of the cantilever component extending between the surface attachment portion thereof and the cantilever component pivot axis may act to stabilize the cantilevered exercise apparatus in the exercising configuration. 
     An exercise bar as mentioned above may be provided for ground engaging exercise apparatus and/or for cantilevered exercise apparatus. For example, where both types of apparatus are provided, each may have a respective exercise bar. 
     In the case of ground engaging exercise apparatus having at least two legs, the exercise bar may extend between the legs. It may function as the connecting bar mentioned above. The ground engaging exercise apparatus may comprise a plurality of horizontal exercise bars. 
     In the case of cantilevered exercise apparatus having a cantilever component, the cantilever component may comprise a horizontal exercise bar. This may be provided at or adjacent to the distal end portion of the cantilever component. The cantilever component may comprise a plurality of horizontal exercise bars. 
     In the case of a land vehicle comprising a trailer, the trailer may have (e.g. four) side walls and a roof. It may be a box, such as an ISO shipping container, removably secured on a flat bed, or it may be an integral construction. Because the equipment is on the outside of the trailer, the inside of the trailer is free to be used to store goods, supplies or other exercise equipment when the trailer is towed, i.e. during locomotion thereof. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Preferred embodiments of the invention will now be described by way of example and with reference to the accompanying drawings, in which: 
         FIG.  1    is a perspective view of the training apparatus, viewed from the rear, with the exercise equipment in a stowed condition; 
         FIG.  2    is a perspective view of the training apparatus, viewed from the rear, with the exercise equipment in an exercising condition; 
         FIG.  3    is a perspective view of the training apparatus, viewed from the front, with the exercise equipment in the exercising condition; 
         FIG.  4    is an isometric view of a leg of ground engaging exercise apparatus when the apparatus is in an exercising configuration; and 
         FIG.  5    is a side view of cantilevered exercise apparatus when the apparatus is in an exercising configuration; 
         FIG.  6    is an isometric view of another embodiment of training apparatus comprising ground engaging exercise apparatus in a stowed configuration; and 
         FIG.  7    is an isometric view of the ground engaging exercise apparatus of  FIG.  6    in an exercising configuration. 
     
    
    
     DETAILED DESCRIPTION 
     As seen in the drawings, training apparatus  1  comprises a land vehicle in the form of a trailer  2  provided with exercise equipment attached to the outside of the trailer. The trailer has wheels  20  enabling it to be transported by being towed by a vehicle. 
     The trailer  2  has an outside  7  which comprises two opposite lateral walls having outside side surfaces  8   a  and  8   b,  two opposite front and rear end walls having outside front and rear side surfaces  9  and  10 , and a roof having a roof surface  19 . At the front of the trailer  2  a tow bar  11  is provided. The rear side surface  10  comprises a pair of doors for gaining access to the inside of the trailer, where further exercise equipment or other material may be stored during transport of the trailer. 
     The exercise equipment comprises ground engaging exercise apparatus  3  and cantilevered exercise apparatus  4 . In alternative embodiments, not shown, the exercise equipment may comprise only the ground engaging exercise apparatus  3 , or only the cantilevered exercise apparatus  4 , and it may comprise more than one ground engaging exercise apparatus  3  and/or more than one cantilevered exercise apparatus  4 . In this embodiment, two ground engaging exercise apparatus  3  and one cantilevered exercise apparatus  4  are provided. 
       FIG.  1    shows the exercise equipment, i.e. the ground engaging exercise apparatus  3  and the cantilevered exercise apparatus  4 , in the stowed condition.  FIGS.  2  and  3    show the exercise equipment in the exercising condition. 
     The ground engaging exercise apparatus  3  comprises a leg  5  which engages the ground when the apparatus is in an exercising configuration by means of a ground engaging plate  6 . A pair of legs  5 , each with a corresponding ground engaging plate  6 , is provided, with the legs being spaced apart in a lengthwise direction of the trailer  2 , whereby there are front and rear legs  5 . 
     An arm member  12   a  extends between the trailer and each ground engaging leg  5 , thereby forming respective leg and arm member units. The leg and arm member units together form a support structure of the ground engaging exercise apparatus  3 . There are front and rear arm members  12   a,  respectively for the front and rear legs  5 . Each arm member  12   a  has an end  13  rigidly secured to a respective leg  5 , and an opposite end  14  connected to a respective “U”-shaped bracket  15   a,    15   b.    
     Each bracket  15   a,    15   b  is pivotally mounted on a respective support plate  18 , as seen in  FIG.  4   . Each support plate  18  is bolted or welded on the inside of lateral side surface  8  of the trailer  2  (and hence is not seen in  FIG.  1 ,  2  or  3   ). Alternatively, it may be welded in place. Thus, each support plate  18  is rigidly mounted to the trailer and defines a respective first pivot axis, perpendicular to the lateral side surface  8  of the trailer and about which a respective “U”-shaped bracket  15   a,    15   b  is rotatable. It may be rotatable about the shank of a bolt (not shown). 
     The bracket  15   a  is nearer to the front of the trailer and will be referred to as the front bracket  15   a,  while bracket  15   b  is nearer to the rear of the trailer and will be referred to as the rear bracket  15   b.  Front bracket  15   a  has a pair of distal holes  16  each provided on a respective limb of the “U” and defining a second pivot axis for the second end  14  of the front arm member  12   a.  The second pivot axis defined by holes  16  is in a plane generally parallel to the outside lateral side surface  8   a  of the trailer, i.e. a vertical plane. The second pivot axis is perpendicular to the first pivot axis of the front “U”-shaped bracket  15   a.    
     Rear bracket  15   b  has a pair of proximal holes  17  each provided on a respective limb of the “U” and defining a second pivot axis for the second end  14  of the rear arm member  12   a.  The second pivot axis defined by holes  17  is in a plane generally parallel to the outside lateral side surface  8   a  of the trailer, i.e. a vertical plane. The second pivot axis is perpendicular to the first pivot axis of the rear “U”-shaped bracket  15   b.  The vertical plane of the second pivot axis defined by the holes  17  for the rear arm member  12   a  is closer to the outside lateral side surface  8   a  than the vertical plane of the second pivot axis defined by the holes  16  for the front arm member  12   a.    
     The arm member  12   a  for each leg  5  may be pivoted about the respective second pivot axes defined by the holes  16  or  17  in the respective “U”-shaped brackets  15   a  or  15   b,  and each of these brackets may be rotated about a respective first pivot axis perpendicular to the outside lateral side surface  8   a  of the trailer. The result is that each arm member  12   a  is attached to the outside of the trailer so as to be movable in more than one plane. In this embodiment the first pivot axes are horizontal. 
       FIGS.  2  and  3    show a pair of leg holding brackets  50  secured to the outside lateral side surface  8   a.  Each bracket  50  has a horizontally projecting limb formed with a vertical hole through which a respective hitch pin  51  passes. When the legs  5  are stowed as shown in  FIG.  1   , the hitch pins pass through holes in the legs and through the vertical holes in the brackets  50 , to hold the legs in the stowed condition. 
     As seen in  FIGS.  2  and  3   , a connecting bar  21  is secured between the front and rear legs  5  and provides an exercise bar, for example to do pull-ups. 
     In use, with the exercise equipment in the stowed condition, the trailer  2  is towed to a site where the exercise equipment is to be used. At the deployment site, the hitch pins  51  are lifted to release the legs to permit movement of the ground engaging exercise apparatus  3  from the stowed configuration to the exercising configuration. In the stowed configuration, the front leg  5  and arm member  12   a  unit is positioned laterally outwardly of the trailer relative to the rear leg  5  and arm member  12   a  unit, and so the front unit is moved first. The front arm member  12   a  is pivoted upwardly about the second pivot axis defined by the distal holes  16  in the “U”-shaped bracket  15   a.  Subsequently, the bracket  15   a  is rotated anticlockwise about the first pivot axis perpendicular to the lateral side surface  8   a  of the trailer, bringing the ground engaging plate  6  at the bottom of the leg  5  into engagement with the ground. A similar operation is carried out on rear leg  5  and arm member  12   a  unit, with the difference that rotation about the first pivot axis for that unit is carried out in the clockwise direction. The connecting bar  21 , which may be stored inside the trailer during towing thereof, is then secured between the front and rear legs  5 . 
     The ground engaging exercise apparatus  3  is then ready for use. By engaging the ground the legs  5  act as stabilizing members which stabilize the exercise equipment, in particular the ground engaging exercise apparatus, in the exercising condition. 
     Since the front and rear legs  5  are moved independently, a user must deal with the weight of each leg one at a time. This makes the exercise equipment easy to deploy and, after use, to stow. 
     The leg  5  and arm member  12   a  units together form a support structure of the ground engaging exercise apparatus  3 . When the support structure is in the exercising condition shown in  FIGS.  2 ,  3  and  4   , the ground engaging legs are in a first, vertical orientation. When the support structure is in the stowed condition shown in  FIG.  1   , the ground engaging legs are in a second, horizontal orientation, whereby they occupy less vertical space than when in the first, vertical orientation. The leg  5  and arm member  12   a  units when stowed thus do not project above or below the lateral side surfaces  8   a,    8   b,  and the length of the trailer is made use of in accommodating the length of the legs  5 , so that they do not project in front of or behind the trailer, or project only to a small extent. This is to be contrasted with a situation if the ground engaging legs were to pivot upwardly about the brackets  15   a,    15   b  in a generally vertical plane, in which case they would project above the roof of the trailer. 
     The cantilevered exercise apparatus  4  will now be described with reference to  FIGS.  1 ,  2 ,  3  and  5   . The cantilevered exercise apparatus comprises a cantilever component, in the form of an exercise frame  22 , and a support frame  25 . The support frame  25  comprises a pair of arm members  12   b  connected together by a pair of diagonal brace members  24 . A pair of laterally spaced support frame brackets  26  are secured on the roof surface  19  of the trailer  2 . The support frame  25  is pivotally mounted by the support frame brackets  26  so as to be rotatable about a support frame pivot axis  36  between a generally horizontal position as seen in  FIG.  1   , when the cantilevered exercise apparatus  4  is in its stowed configuration, and a generally vertical position as seen in  FIG.  2   , when the apparatus  4  is in the exercising configuration. Thus the arm members  12   b  have pivotally mounted ends and free ends remote therefrom. The support frame pivot axis  36  is horizontal. 
     The exercise frame has a proximal end portion  37  and a distal end portion  32 . 
     The exercise frame  22  is pivotally mounted to the free ends of the arm members  12   b  of the support frame  25 , about an exercise frame pivot axis  34 . The exercise frame  22  has at its proximal end portion  37  a trailer attachment portion  27  which is releasably fixed to the trailer when the cantilevered exercise apparatus is in the exercising configuration shown in  FIG.  2   , by a releasable anchoring device  28 . The releasable anchoring device  28  comprises a pair of anchoring brackets  29  laterally spaced from each other and fixed to the roof surface  19  of the trailer  2  in a position forwardly of the support frame brackets  26 . A clamp member  30  is pivotally mounted to each anchoring bracket  29 . 
     In  FIG.  1    the clamp member  30  on the right hand side of the roof surface  19  is shown partially open. The clamp members  30  may be pivoted to an open position to allow a lateral bar  31  of the trailer attachment portion  27  of the exercise frame  22  to be received in a “U”-shaped socket provided in the anchoring bracket  29 . The clamp member  30  is also provided with a “U”-shaped socket which, when the clamp member  30  is pivoted to the closed position engages the lateral bar  31  of the exercise frame to clamp it in position. At this time, the exercise frame  22  extends upwardly and horizontally, supported by the support frame  25  at a location intermediate between the trailer attachment portion  27  held by the anchoring brackets  29  and clamp members  30  and the distal end portion  32  at the projecting end of the exercise frame  22 . 
     The exercise frame  22  has a pair of lateral exercise bars  33  disposed outwardly of the footprint of the trailer (as viewed from above). These extend horizontally, both when the cantilevered exercise apparatus  4  is in its stowed configuration and when it is in its exercising configuration. 
     The exercise frame  22  has a pair of laterally projecting locking bars  35  disposed intermediate between the exercise frame pivot axis  34  and the proximal end portion  37 . When the cantilevered exercise apparatus is in the stowed configuration seen in  FIG.  1   , it may be locked in this position by the locking bars  35  engaging in the clamp member  30  so that it is secure during towing of the trailer. In the stowed configuration, the substantially the entire cantilevered exercise apparatus lies in a generally horizontal plane. 
     In use, when the trailer has been transported to a deployment site, the releasable anchoring device  28  is operated to release the locking bars  35 . The support frame  25  is pivoted about its pivot axis  36  from the horizontal to a vertical position, thereby causing the exercise frame pivot axis  34  to move away from the roof surface  19  of the trailer  2 . The trailer attachment portion  27  of the exercise frame  22  is maneuvered so that its lateral bar  31  engages with the anchoring brackets  29 , where it clamped by the anchoring brackets  29  and clamp members  30  of the releasable anchoring device  28 . At this time, the distal end portion  32  projects upwardly and outwardly of the trailer to place the exercise bars  33  in an elevated position for exercising purposes. 
       FIGS.  6  and  7    show another embodiment of a training apparatus comprising ground engaging exercise apparatus  3  suitable for mounting to any wall (not shown), not necessarily that of a land vehicle, for example a fixed wall of a building or a ship. The ground engaging exercise apparatus comprises a pair of upright posts  40  spaced apart from each other and each having a floor plate  43  for resting on a floor, e.g. of a ship or a building. An upper wall mounting plate  41  extends between the two upright posts and includes holes for receiving bolts to enable the upper wall mounting plate  41  to be secured to a wall. A lower wall mounting plate  42  is downwardly spaced from the upper wall mounting plate  41  and also extends between the two upright posts  40  and has holes to allow it to be bolted to the wall. 
     In the stowed configuration of the ground engaging exercise apparatus  3  shown in  FIG.  6   , the connecting bar  21 , to be used as an exercise bar, is stowed by being supported between the two upright posts  40 . As seen in  FIG.  7   , which shows the ground engaging exercise apparatus  3  in the exercising configuration, the connecting bar  21  has been moved from the upright posts  40  so that it extends between the ground engaging legs  5 . 
     In other respects, the ground engaging exercise apparatus  3  is generally the same as that described in relation to the first embodiment, and corresponding reference numbers are used. 
     The operation of the ground engaging exercise apparatus  3  of  FIGS.  6  and  7    also corresponds to that described in relation to the first embodiment. In particular, each leg  5  and arm member  12   a  unit is independently maneuvered between the stowed and exercising conditions, so that a user need only deal with the weight of each unit one at a time. 
     The leg  5  and arm member  12   a  units together form a support structure of the ground engaging exercise apparatus  3 . When the support structure is in the exercising condition shown in  FIG.  7   , the ground engaging legs are in a first, vertical orientation. When the support structure is in the stowed condition shown in  FIG.  6   , the ground engaging legs are in a second, horizontal orientation, whereby they occupy less vertical space than when in the first, vertical orientation. This is to be contrasted with the amount of vertical space which would be required if the ground engaging legs were to pivot upwardly about the brackets  15   a,    15   b  in a generally vertical plane, in which case a substantial amount of headroom would be required above the upright posts  40  to accommodate the vertical space then occupied by the legs  5 . 
     It will therefore be seen that by allowing the ground engaging legs to have different orientations when stowed and when deployed the exercise equipment can be used in places where there is restricted headroom.