MOBILE FITNESS SYSTEM

Abstract

The present application is directed to a mobile fitness system capable of being mounted to a vehicle rack. Components of the fitness system may be adjustably attached to the rack, providing for various free-hanging exercises, as well as allowing for attachment of various other fitness equipment. The fitness system may comprise extensions allowing groups of users to train simultaneously around the vehicle. The fitness system may also comprise a simulated door frame for attachment to a vehicle rack for supporting various home gym equipment that typically mounts to household doors. The fitness system may also comprise a spiral or semi-circular apparatus for performing body weight exercises at a plurality of angles. A plurality of hand grips may be attached to the apparatus, allowing a user to perform a variety of exercises at predetermined angles. The apparatus may be fixed to a vehicle rack to provide a portable training system.

Description

RELATED APPLICATIONS

The present application is claims priority to and the benefit of U.S. Provisional Patent Application No. 61/526,445, entitled “Mobile Fitness System,” filed on Aug. 23, 2011, the entirety of which is hereby incorporated by reference.

FIELD OF THE INVENTION

The methods and systems described herein relate generally to fitness equipment. In particular, the methods and systems described herein relate to a mobile fitness system for use with a truck rack or other load carrying rack.

BACKGROUND OF THE INVENTION

Outdoor fitness training has experienced a recent surge in popularity, with “boot camp” programs simulating military basic training regimens. These programs frequently take place in public parks or elsewhere, and incorporate jogging or running, aerobic exercises such as jumping jacks or rope skipping, and bodyweight exercises such as push-ups, squats, leg lunges, and sit-ups. However, while some cities have provided fixed structures in parks for performing pull-ups or other exercise routines, such equipment is not widely available, limiting the variety of exercises that may be performed.

Similarly, not everyone has access to a well-equipped gym, due to location or expense. While many advances have been made in home gym equipment, such devices typically are not highly portable, and thus may be inadequate for the fitness needs of contractors or other professions who frequently travel for work.

SUMMARY OF THE INVENTION

The present application is directed to a mobile fitness system capable of being mounted to a vehicle rack. Components of the fitness system may be adjustably attached to the rack, providing for various free-hanging exercises, such as pull-ups, chin-ups, leg-ups, or tricep dips, as well as allowing for attachment of various other equipment including suspension trainers, gymnastic rings, climbing ropes, heavy bags or punching bags, or other equipment. The fitness system may comprise extensions allowing groups of users to train simultaneously around the vehicle. In another aspect, the present application is directed to a simulated door frame for attachment to a vehicle rack. The simulated door frame allows use of various home gym equipment that typically mounts to household doors. In some embodiments, the simulated door frame includes a vehicle tire stop. The vehicle may be moved to a position on top of the vehicle tire stop, such that the vehicle's weight prevents the simulated door frame from moving.

In still another aspect, the present application is directed to an apparatus for performing body-weight exercises at a plurality of angles. The apparatus may comprise a semi-circular frame or frame in the shape of a portion of a Fibonacci spiral. A plurality of hand grips may be attached to the frame, allowing a user to perform a variety of exercises at predetermined angles. The apparatus may be fixed to a vehicle rack to provide a portable training system.

In one aspect, the present disclosure is directed to a mobile fitness system for attachment to a vehicle accessory rack. The mobile fitness system includes an extension rail for extending from a vehicle accessory rack parallel to the ground to support a user performing free hanging fitness exercises. The system also includes at least one vertical riser, attached ventrally to the extension rail, each vertical riser having a first predetermined height. The system further includes at least one foot attached to and extending laterally from each corresponding riser, each said foot comprising a hole for attachment of the mobile fitness system to the vehicle accessory rack via a fastener.

In some embodiments of the system, a first portion of the extension rail has a circular cross section. In other embodiments of the system, the extension rail includes a hole at a predetermined position for accepting a hook attached to a fitness accessory. In a further embodiment of the system, the hole within the extension rail is not located at a point along the extension rail between a first vertical riser and a second vertical riser.

In one embodiment of the system, the first predetermined height of each vertical riser is selected to position the extension rail at a second predetermined height from the ground when attached to the vehicle accessory rack. In another embodiment of the system, each at least one foot further comprises a bolt for attachment via the hole to the vehicle accessory rack. In yet another embodiment, the system includes a first vertical riser attached to the extension rail at a first position, a second vertical riser attached to the extension rail at a second position separated from the first position by a first predetermined length, and the extension rail is longer than the first predetermined length.

In another aspect, the present disclosure is directed to a mobile fitness system for attachment to a vehicle accessory rack. The mobile fitness system includes an extension rail for extending from a vehicle accessory rack parallel to the ground to support a user performing free hanging fitness exercises. The system also includes at least one leg attached to a terminal end of the extension rail and extending laterally from the extension rail. The system further includes a mount for attachment to the vehicle accessory rack, attached to the extension rail by a first joint. The mount includes an upright including the first joint, and a mounting plate attached to said upright, the mounting plate comprising at least one hole for attachment of the mobile fitness system to the vehicle accessory rack via a fastener.

In some embodiments, the system includes at least two legs extending laterally at symmetrical angles from the extension rail to form an A-frame. In other embodiments, the system includes at least one extension leg removably attached to each leg. In still other embodiments, the system includes at least one foot attached to a corresponding leg, each foot comprising a plate fixed to each leg or a corresponding extension leg at an angle equal to an angle between said leg or extension leg and a line perpendicular to the ground.

In some embodiments of the system, the first joint allows for one rotational degree of freedom at most. In other embodiments of the system, the first joint allows for one translational degree of freedom at most.

In one embodiment, the system includes a semi-circular fitness apparatus attached to the extension rail, the semi-circular fitness apparatus including at least two semi-circular rims, joined by a plurality of cross bars. In a further embodiment, the semi-circular fitness apparatus further includes at least one pair of grips attached at corresponding positions to each rim and extending laterally from said rim, each grip having a circular cross section and diameter for grasping by a user's hand. In another further embodiment, each rim of the semi-circular fitness apparatus has a spiral profile. In still another further embodiment, the semi-circular fitness apparatus comprises a mounting plate attached to an upper terminal end of each rim for hooking over the extension rail.

In still another aspect, the present disclosure is directed to a mobile fitness system for attachment to a vehicle accessory rack and for supporting a fitness apparatus configured for attachment to a door. The mobile fitness system includes an upper frame portion including a first horizontal beam, at least one vertical riser attached to the horizontal beam, and at least one mounting plate attached to a corresponding vertical riser and extending orthogonally to the horizontal beam for attachment of the upper frame portion to a vehicle accessory rack via a fastener. The system also includes a lower frame portion including a second horizontal beam, and a tire receiving channel attached to the second horizontal beam for positioning beneath a vehicle tire, the channel comprising a plate attached to the second horizontal beam at a first edge and a backstop extending vertically from and attached to the plate at a second edge opposite the first edge.

In some embodiments, each of the first horizontal beam and second horizontal beam have a length and thickness equal to a corresponding length and thickness of a standard door. In other embodiments, the tire receiving channel further includes a vehicle stop extending vertically from a third edge of the plate orthogonal to the first edge and second edge.

The details of various embodiments of the invention are set forth in the accompanying drawings and the description below.

BRIEF DESCRIPTION OF THE FIGURES

The foregoing and other objects, aspects, features, and advantages of the invention will become more apparent and better understood by referring to the following description taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a perspective view of an embodiment of a vehicle rack;

FIGS. 2A-2D are front, side, top, and isometric views of an embodiment of an extension rail for supporting fitness equipment or for performing free-hanging exercises;

FIG. 2E is a top view of an embodiment of the extension rail of FIGS. 2A-2D installed on a vehicle rack;

FIG. 2F is a top view of an embodiment of the extension rail of FIGS. 2A-2E positioned for transportation on a vehicle rack;

FIGS. 3A-3D are front, side, top, and isometric views of an embodiment of an A-frame extension for supporting fitness equipment or for performing free-hanging exercises;

FIGS. 3E and 3F are side and end views, respectively, of an embodiment of extension legs for an embodiment of the A-frame extension of FIGS. 3A-3D;

FIG. 3G is a perspective view of an embodiment of the A-frame extension of FIGS. 3A-3D and extension legs of FIGS. 3E-3F;

FIG. 3H is an isometric view of an embodiment of a mount for an A-frame extension;

FIG. 3I is an isometric view of another embodiment of a mount for an A-frame extension;

FIG. 3J is a perspective view of an embodiment of an A-frame extension and extension legs mounted to a vehicle rack;

FIG. 4A is a front view of an embodiment of a fitness apparatus utilizing a door for structural support;

FIG. 4B is an isometric view of a component of the fitness apparatus of FIG. 4A;

FIGS. 5A-5D are front, top, bottom, and side views of an embodiment of a simulated upper portion of a door for supporting a fitness apparatus;

FIGS. 6A-6C are front, top, and end views of an embodiment of a simulated lower portion of a door for supporting a fitness apparatus;

FIG. 7 is a front view of an embodiment of the simulated upper portion of a door of FIGS. 5A-5D and lower portion of a door of FIGS. 6A-6C installed on an embodiment of a vehicle rack, supporting an embodiment of a fitness apparatus;

FIG. 8 is a perspective view of an embodiment of a mobile fitness system;

FIG. 9A is an illustration of use of an embodiment of a Fibonacci Wheel or semi-circular fitness apparatus;

FIG. 9B is a perspective view of an embodiment of a Fibonacci Wheel or semi-circular fitness apparatus; and

FIG. 9C is a perspective view of an embodiment of a mobile fitness system comprising an A-frame extension and a Fibonacci Wheel.

The features and advantages of the present invention will become more apparent from the detailed description set forth below when taken in conjunction with the drawings, in which like reference characters identify corresponding elements throughout. In the drawings, like reference numbers generally indicate identical, functionally similar, and/or structurally similar elements.

DETAILED DESCRIPTION OF THE INVENTION

A mobile fitness system may comprise one or more modules capable of mounting on a vehicle rack. The vehicle may comprise, for example, a contractor's work truck, or other vehicle. In one embodiment, the vehicle rack may be incorporated into the vehicle or part of the vehicle, while in other embodiments, the vehicle rack may comprise an add-on rack. For example, in one such embodiment, a vehicle rack may comprise any of the models of TracRac vehicle racks manufactured by TracRac, Inc. of Fall River, Mass.; any of the models of vehicle racks manufactured by DeWALT Industrial Tool Co. of Baltimore, Md. such as the SteelTruss line of racks; any of the models of Xsportster truck racks by Thule AB of Sweden; or any other type and form of vehicle rack.

For example, referring to FIG. 1, illustrated is a perspective view of an embodiment of a vehicle rack 100, mounted on a pickup truck 112. In some embodiments, a vehicle rack 100 may be mounted on other vehicles, including cars, flatbed trucks, vans, or other vehicles. In one embodiment, a vehicle rack 100 may comprise horizontal sliding rails 102a-102b (referred to generally as rails 102 or bed rails 102). One or more rack bars 104a-104b (referred to generally as racks 104, rack bars 104, or load bars 104), may be mounted to rails 102. In many embodiments, rack bars 104 may be slidingly positioned on rails 102 and locked or clamped into place via locking mechanisms 110.

A rack bar 104 may comprise a pair of uprights 108 and a cross bar 106a-106b (sometimes referred to as a cross bar 106, load bar 106, and sometimes referred to as rack bars).

In some embodiments, a rack bar 104 may comprise one or more additional supports, such as diagonal supports, to prevent torsion or otherwise support heavier loads. In some embodiments, a rack bar 104 may include cleats or other mounting hardware. In many embodiments, rack bars 104 may have user-adjustable heights, such that cross bars 106 may be positioned at variable distances from the ground. In some embodiments, the height may be continuously variable, while in other embodiments, the user may select from a plurality of predetermined heights. For example, uprights 108 may include one or more pre-drilled holes, a sliding upper portion, and a locking pin for locking the sliding upper portion into place via one of the pre-drilled holes.

As shown in FIG. 1, in many embodiments, horizontal cross bars 106 are at a substantial height from the ground, frequently above head level, but typically within arm's reach from the ground. Accordingly, a lateral extension at or above the level of cross bars 106 may enable a user to hang from the bars and perform various free-hanging exercises, such as pull-ups. Furthermore, other exercise equipment may be hung from such lateral extensions, providing a variety of exercises. Referring now to FIGS. 2A-2D, illustrated are front, side, top, and isometric views of an embodiment of an extension bar or extension rail 200 for supporting fitness equipment or for performing free-hanging exercises. In brief overview, extension rail 200 may comprise an extended rail 202, connected to one or more risers 204a-204b, each fast to a foot 208a-208b. Feet 208a-208b may include a hole 206a-206b for fastening the extension rail 200 to a cross bar 106. In use, extension rail 200 may attach to cross bar 106 or similar elements of a vehicle rack with tie-down screws or clamps, and may extend laterally outward and away from the side of the bed of the truck, parallel with cross bar 106. When in position for use, extension rail 200 may allow for various free-hanging exercises, as well as, in some embodiments, the attachment of still rings, ropes, and other suspension devices, such as the TRX Suspension trainer by Fitness Anywhere, LLC of San Francisco, Calif. In other embodiments, extension rail 200 may be configured for attachment of punching bags, heavy bags, pulleys and weights, or other devices, such as the Jungle Gym XT by LifelineUSA of Madison, Wis. When not in use, extension rail 200 may be tied down to the rack longitudinally parallel with the length of the truck bed.

Referring first to FIG. 2A and in more detail, an extension rail 200 may comprise a horizontal beam or rail 202. Extension rail 200 may be constructed of steel, iron, aluminum, or any other stiff and strong material capable of supporting the weight of a user. In some embodiments, extension rail 200 may be constructed from wood or a hard plastic, such as ABS plastic. In some embodiments, extension rail 200 or a portion of extension rail 200, such as beam 202, may be solid, while in other embodiments, the rail or beam may be hollow. For example, in one embodiment, beam 202 may comprise a tubular length of steel. Beam 202 may be of any length sufficient to allow a user to hang freely when extended past the side of a vehicle, such as one foot, two feet, four feet, six feet, or any other length. Beam 202 may have any diameter or width, such as one inch, one and a half inches, two inches, four inches, six inches, etc. In one embodiment, beam 202 may have a diameter sized to be grasped by a human hand.

In some embodiments, beam 202 may have a round cross-section, while in other embodiments, beam 202 may be square, hexagonal, octagonal, or any other cross-section. In one embodiment, a first portion of beam 202, such as the portion attached to and between risers 204a-204b may have a first cross-section, such as square, while a second portion of beam 202, such as the portion extending longitudinally from riser 204b away from riser 204a, may have a second cross-section, such as octagonal. This may be done for ease of manufacture or welding to risers, while simultaneously providing a comfortable grip for a user's hand. In some embodiments, beam 202 may have an end cap, preventing a user's hand from sliding off the end of the beam while in use, as well as preventing injury. In some embodiments, an end cap may be of a similar material to beam 202 or may be incorporated into beam 202, such as a broadened or enlarged terminal portion of a few inches or less. In other embodiments, an end cap may be of a different material and may be placed over the end of the beam 202, such as a rubber cap.

In many embodiments, one or more holes may pass through beam 202 in one or more predetermined positions for attachment of additional equipment. For example, beam 202 may include a lateral hole six inches from the end of beam 202 for accepting a hook attached to a chain of a heavy bag, such that beam 202 may support the bag in position for use. Holes may be vertical, horizontal, or in any other orientation. In other embodiments, additional equipment may be simply hung over beam 202, without requiring to be secured via a hole. In a further embodiment, said equipment may include a clamp or other feature to secure the equipment to beam 202. In another further embodiment, beam 202 may have one or more projections or protruding pins or similar features, preventing an item of equipment hanging over the beam from sliding past the projection.

Extension rail 200 may comprise one or more risers 204a-204b, referred to generally as risers 204, attached to and extending ventrally from beam 202. In one embodiment, extension rail 200 may have a single riser of sufficient length and strength to prevent rotation of beam 202 due to torque when in use. For example, the riser may be one foot long, two feet long, or any other length. In other embodiments, as shown, extension rail 200 may comprise two or more risers 204. In such embodiments, risers 204 may be of substantially shorter length while still preventing rotation when secured to a vehicle rack. Where multiple risers are employed, risers may be of any spacing, such as six inches apart, one foot apart, two feet apart, two and a half feet apart, three feet apart, or any other distance.

As shown in FIG. 2B, risers 204 may, in some embodiments, be narrower than beam 202. In other embodiments, risers 204 may be of the same width as beam 202 or wider. Risers 204 may be of any material, the same or different from the material of beam 202. Risers 204 may be of any height, such as six inches, three inches, one foot, or any other height. In one embodiment, risers 204 may be of sufficient height to position beam 202 at a predetermined distance from the ground when positioned for use on a vehicle rack.

In some embodiments, a riser 204 may be attached or fast to a foot 208a-208b, referred to generally as a foot 208, which may extend laterally from a terminal end of a riser 204. Foot 208 may further comprise one or more holes 206a-206b, referred to generally as holes 206, for attachment via tie-downs or clamps to a vehicle rack. Holes 206 may be threaded or unthreaded.

The diameter of holes 206 may be sized responsive to tie-down or clamp features of a vehicle rack. For example, in some embodiments, a vehicle rack cross bar may include threaded holes, and holes 206 may be of similar diameter, allowing a bolt to be threaded through a hole 206 of a foot 208 and through a hole of the cross bar. In other embodiments, a vehicle rack may utilize expandable clamps that may be positioned at any point along a cross bar, and hole 206 may be sized to allow use of said expandable clamps. In some embodiments, clamps may be provided with extension rail 200.

As shown in FIGS. 2B-2D, in some embodiments, feet 208 may extend laterally past beam 202. In other embodiments, feet 208 may not extend beyond beam 202. In still other embodiments, feet 208 may extend beyond beam 202, but holes 208 may be placed in line with an axis of beam 202. Although both shown extending to a right side of beam 202, in some embodiments, feet 208 may extend laterally to a left side of beam 202, both sides of beam 202, or one foot 208 may extend laterally to a left side while a second foot 208 extends laterally to a right side of beam 202.

Referring now to FIG. 2E, illustrated is a top view of an embodiment of the extension rail of FIGS. 2A-2D installed on a vehicle rack and positioned for use. As shown, in some embodiments, multiple extension rails 200a-200d may be employed simultaneously. Although shown extending to a right side of vehicle 112, in some embodiments, extension rails 200 may be extended to a left side of vehicle 112. In another embodiment, extension rails 200 may extended on both sides of vehicle 112, allowing multiple simultaneous users. As shown, additional vehicle racks 104a-104d may be employed to provide support for corresponding rails 200a-200d. Two rails 200 may be employed simultaneously on any one vehicle rack 104, with each extending laterally from a side of vehicle 112. In some embodiments, pairs of extension rails 200 may be placed approximately shoulder-width apart, allowing for pull-ups in a neutral grip, tricep dips, or similar exercises, or attachment of paired equipment such as gymnastic rings.

Referring now to FIG. 2F, illustrated is a top view of an embodiment of the extension rail of FIGS. 2A-2E positioned for transportation on a vehicle rack. As shown, when not in use, rails 200a-200d may be tied down longitudinally parallel to the length of the vehicle. In some embodiments, as shown, a vehicle rack 106, such as rack 104c may be moved to allow feet 208 to be secured to the rack in position for travel. In other embodiments, extension rails may include additional tie down holes, such as holes through bar 202 between one or more risers 204, such that the rail may be tied down via said hole when not in use.

Through the use of multiple extension rails 200, a large number of users may train simultaneously, either via single or paired extension rails, or equipment attached to said extension rails. To accommodate even more users, an A-frame extension may be employed. FIGS. 3A-3D are front, side, top, and isometric views of embodiment of an A-frame extension 300 for supporting fitness equipment or for performing free-hanging exercises. Although discussed as an A-frame, in some embodiments, the frame may comprise an extension rail and single leg, or a plurality of legs joined by a crossbar. Accordingly, rather than an A-frame, extension 300 may be an L shape, a D shape, an inverted-U shape, or any other shape. In brief overview, an extension 300 may comprise a beam 302 attached to one or more legs 304a-304b at a terminal end. Extension 300 may be attached to a vehicle rack and extended longitudinally from the vehicle, allowing user by users at the rear of the vehicle, in addition to the sides of the vehicle through use of extension rails 200. Additionally, while a significant portion of extension rails 200 may be involved in securing the extension rail to the vehicle rack, such as the length of extension rail between risers 204a-204b, and may thus be unusable for fitness training, an extension 300 may have nearly all of its length usable, allowing large groups of simultaneous users.

Still referring to FIGS. 3A-3D, and in more detail, an extension 300 may comprise a beam 302. Similar to an extension beam 202, beam 302 may be of metal, wood, hard plastic, or any similar material. Beam 302 may have any cross section, such as circular, square, octagonal, or any other shape. In some embodiments, a first portion of beam 302 may have a first cross section, and a second portion of beam 302 may have a second cross section. For example, a first portion for attachment to a vehicle rack may be square, rectangular or flat, while a second portion for grasping by a user may be round. Beam 302 may be hollow, solid, or partially solid and partially hollow. For example, in some embodiments, beam 302 may comprise a tubular steel beam. Beam 302 may be of any length, such as five feet, six feet, seven feet, ten feet, or any other length. In some embodiments, beam 302 may have a diameter capable of being grasped by a hand, such as two inches, three inches, or any similar size. Accordingly, in such embodiments, a user may utilize beam 302 for free-hanging exercises. In other embodiments, beam 302 may have a larger diameter for additional strength, and a user may attach additional fitness equipment to beam 302 such as gymnastics rings. In some embodiments, similar to those discussed above in connection with extension rail 200, beam 302 may include one or more vertical or horizontal holes for attaching fitness equipment, or one or more protrusions to prevent fitness equipment from sliding freely along the length of beam 302.

Beam 302 may be fixed to one or more legs 304a-304b, referred to generally as legs 304. In one embodiment, as shown in FIGS. 3C-3D, legs 304 may extend at symmetrical angles from beam 302, forming an A frame for supporting beam 302 while preventing lateral movement of the beam. In some embodiments, legs 304 may be of any length. For example, in one embodiment, legs 304 may be of very long length, such as seven, eight, or nine feet in length, supporting the beam 302 at or above head height from the ground when in use. In other embodiments, legs 304 may be substantially shorter, and may be joined in use to extension legs 306, discussed in more detail below, allowing for portability and storage. For example, legs 304 may be only one, two, or three feet in length, or any other length. In some embodiments, legs 304 may be hollow or partially hollow for holding extension legs 306, discussed in more detail below. Although illustrated in an A-configuration, in some embodiments, legs 304 may be attached to a crossbar (not illustrated) that may be attached to the terminal end of beam 302, forming an inverted-U or pi-shape. In other embodiments, a single leg 304 may be used to support beam 302. In a further embodiment, one or more ropes, straps, or cables may be attached to beam 302 and connected to stakes, weights, or other securing means to provide lateral tension to prevent beam 302 from moving, similar to tension methods used in securing tents.

Referring now to FIGS. 3E and 3F, illustrated are side and end views, respectively, of an embodiment of extension legs 306a-306b, referred to generally as extension legs 306) for an embodiment of the A-frame extension of FIGS. 3A-3D. FIG. 3G is a perspective view of an embodiment of the A-frame extension of FIGS. 3A-3D and extension legs of FIGS. 3E-3F. Extension legs 306 may comprise a leg 308a-308b attached to a foot 310-310b. Leg 308a-308b may be of similar material and construction as legs 304 of A-frame extension 300, but in many embodiments, may be narrower in diameter. As shown in FIGS. 3F and 3G, extension legs 306 may be inserted into hollow ends of leg 304 for use in supporting beam 302 at an appropriate height from the ground, and may be removed for portability and storage. In some embodiments, legs 304 may be partially hollow or have a stop at a predetermined position within the leg, such that an extension leg 306 may be inserted to a specified distance. In another embodiment, legs 304 may have a partial crimp at a predetermined position, preventing extension legs 306 from sliding further into leg 304. In other embodiments, extension legs 306 may be fully inserted in legs 304, such that extension legs are prevented from further travel by beam 302. In still other embodiments, a leg 308 may include a hole at or near a terminal end of the leg to be secured in place via a pin through a corresponding hole in leg 304. In still other embodiments, leg 308 may include a threaded portion corresponding to a threaded portion on the inside of leg 304, such that the extension leg may be screwed securely into position for use.

A foot 310 may be attached to a terminal end of a leg 308. In some embodiments, a foot 310 may be a flat plate angled to lie flat against a surface when A-frame extension is in use. In other embodiments, a foot 310 may include a spike to be driven into soft ground. In still other embodiments, a foot 310 may include a threaded portion or non-threaded portion sized to meet with a plate 312a-312b, referred to generally as plates 312. Plate 312 may comprise a plate for spreading force from an extension leg 306 over a larger area of ground. In some embodiments, plate 312 may be weighted, to prevent accidental movement of extension legs during use of the A-frame extension. In one embodiment, plate 312 may include a textured or spiked portion, for increasing friction with the ground while in use. In other embodiments, foot 310 may be sized to fit within a center hole of a disc weight or barbell plate. Barbell plates, which may be readily available, may then be used to secure the A-frame extension for use.

Beam 302 of an A-frame extension 300 may be secured to a cross bar of a vehicle rack for use. Different mounts 314 may be used, example embodiments of which are illustrated in FIGS. 3H and 3I. Referring first to FIG. 3H, illustrated is an isometric view of an embodiment of a mount 314a for an A-frame extension. In brief overview, in some embodiments, a mount for an A-frame extension may comprise an upright 320 attached to a mounting plate 316. Mounting plate 316 may have one or more holes 318a-318b for clamps or threaded bolts for attachment to a vehicle rack cross bar. Upright 320 may, in some embodiments, include a hole 322 with an inner diameter sized to accommodate beam 302, supporting an end of the beam and preventing lateral motion. In other embodiments, as shown in FIG. 3I, upright 320 may include two arms 324, with each including a hole 326 for a pin. In such embodiments, beam 302 may have a corresponding hole, such that a pin may be slid through holes 236 and the corresponding hole in beam 302, preventing any lateral or longitudinal motion of beam 302.

Still referring to FIG. 3H, and in more detail, in some embodiments, a mount for an A-frame extension may comprise an upright 320 attached to a plate 316. In some embodiments, upright 320 and plate 316 may form an L-shape or be attached at a 90 degree angle, while in other embodiments, upright 320 and plate 316 may be attached at any other angle. In many embodiments, upright 320 and plate 316 may be formed from a single piece of material, such as steel or iron, bent or cast in a bent shape.

In some embodiments, plate 316 may comprise one or more mounting holes 318a-318b, referred to generally as mounting holes 318 or tie down holes 318. In some embodiments, tie down holes 318 may be threaded, while in other embodiments, tie down holes 318 may be unthreaded. In some embodiments, and as discussed above in connection with mounting holes of extension rails, tie down holes 318 may be sized to accommodate bolts, knobs, clamps, or other tie down hardware for securing the mount 314 to a crossbar of a vehicle rack.

In some embodiments, as shown in FIG. 3H, upright 322 may comprise a hole 322. In many embodiments, hole 322 may have an inner diameter of slightly larger than an outer diameter of beam 302, allowing beam 302 to be inserted into hole 322 to form a prismatic joint. Mount 314 may then provide vertical support for beam 302, as well as preventing lateral translation of the beam.

In other embodiments, as shown in FIG. 3I, upright 322 may include a notch or have two upper plates 324 spaced apart by at least a diameter of beam 302. Each plate 324 may include a hole 326 to allow a pin (not illustrated) to be slid through holes 326 and a corresponding hole through beam 302 to form a hinged joint. Mount 314 may then provide vertical support for beam 302, as well as preventing both lateral and longitudinal translation of the beam. In some embodiments, as shown, each plate 324 may be of greater width than upright 322. In other embodiments, upright 322 may be thicker, with the same thickness as each plate 324. The latter embodiments may be heavier, but may also be stronger as well as cheaper to manufacture.

Referring now to FIG. 3J, illustrated is a perspective view of an embodiment of an A-frame extension 300 and extension legs 306a-306b mounted to a vehicle rack 104b. As shown, extension legs 306a-306b may be of sufficient length to support beam 302 parallel to the ground. Beam 302 may then be used for free-hanging exercises by multiple users simultaneously, and/or may support one or more items of fitness equipment including ropes, chains, rings, pulleys and weights, punching bags or heavy bags, elastic bands, or any other type and form of fitness equipment.

Other types of fitness equipment may also be supported by the mobile fitness system discussed herein. For example, referring briefly to FIG. 4A, illustrated is a front view of an embodiment of a fitness apparatus 400 utilizing a door 404 for structural support, such as the Weider X-Factor Door Gym manufactured by ICON Health & Fitness of Logan, Utah; the Altus Home Gym manufactured by Altus Athletic Manufacturing Co. of Altus, Okla.; the Home Gym System by American Fitness of Beaverton, Oreg.; or any other type and form of door-mounted fitness apparatus. In brief overview, a fitness apparatus 400 may comprise a plurality of door frame supports 402a-402d, which may be connected by elastic cables 406 through pulleys 408. A user may grasp handles 410a-410b to perform a variety of dynamic strength exercises. As shown in the isometric view of FIG. 4B, each door frame support 402a-402d may comprise a U-shaped portion to be placed over or under the door 404 with the door providing support and tension to elastic cables 406. Fitness equipment of this sort may be used with the mobile fitness system via a simulated door frame, fabricated to the same dimensions of an ordinary household door, but with an upper portion designed to attach to a vehicle rack, and a lower portion designed with a receiving channel for the vehicle tire to be driven over, anchoring the lower portion to the ground. Simulated door frames may be utilized on both sides of the vehicle simultaneously, providing capability for multiple users. When not in use, the upper and lower portion of the simulated door frame may be removed and easily stored and transported.

Referring now to FIGS. 5A-5D, illustrated are front, top, bottom, and side views, respectively, of an embodiment of a simulated upper portion 500 of a door for supporting a fitness apparatus 400. In brief overview, the upper portion or top frame 500 may comprise a horizontal bar or beam 502, attached to one or more vertical risers 506a-506b. Each riser 506a-506b may be attached to a horizontal mounting plate 508a-508b with a channel to slide over a cross bar of a vehicle rack. Each mounting plate 508a-508b may include one or more tie down or mounting holes 510a-510b for securing the top frame 500 to a vehicle rack. Beam 502 may be fixed to a plurality of equipment attachment points 504a-504d.

Still referring to FIGS. 5A-5D and in more detail, a top frame 500 may comprise a horizontal beam 502. Beam 502 may be wood, metal, plastic, or any other stiff material or combination of materials. In some embodiments, beam 502 may have a length equivalent to a standard household doorframe, such as two and a half or three feet, while in other embodiments, beam 502 may be any other size, including larger or smaller. In some embodiments, beam 502 may be the same thickness as a standard door, such as two inches, or may be thinner. In embodiments in which beam 502 is thinner than a standard door, top frame 500 may include a plurality of attachment points 504a-504d or plates fixed to beam 502 to add thickness and support door frame supports 402 of fitness equipment 400. In other embodiments, beam 502 may be thicker than a standard door, and attachment points 504a-504d may comprise notches or indentations in beam 502, allowing attachment of equipment while preventing the equipment from sliding laterally across beam 502. In some embodiments, as shown, attachment points 504a-504d may extend lower than beam 502, providing a greater surface area for contact with door frame supports 402 of fitness equipment, while reducing the weight of top frame 500. Attachment points 504a-504d may comprise pairs for a “narrow” setting and “wide” setting for use of a door frame attached fitness apparatus. For example, outer attachment points may be used for a wide setting, while inner attachment points may be used for a narrow setting.

Top frame 500 may comprise one or more risers 506a-506b, referred to generally as risers 506. Risers 506 may be attached to beam 502, and may be of any height, width, or thickness. Risers 506 may be of wood, metal, plastic, or any combination of one or more stiff materials. In some embodiments, beam 502 and risers 506 may be cast or forged together, while in other embodiments, beam 502 and risers 506 may be welded, bolted, or otherwise fastened together. Risers 506 may provide a vertical displacement from a vehicle rack cross bar, both to allow attachment of door frame supports 402 of fitness equipment at proper height and to prevent supports 402 from being obstructed by the rack cross bar.

Risers 506 may attach to one or more mounting plates 508a-508b, referred to generally as mounting plates 508. Mounting plates 508 may be wood, metal, plastic, or any combination of one or more stiff materials for attachment to a vehicle rack. In some embodiments, mounting plates 508 may be flat, while in other embodiments, mounting plates 508 may be notched or have an inverted U-shape for sliding over and around a vehicle rack cross bar. Mounting plates 508 may include one or more mounting or tie down holes 510a-510b for use of bolts, clamps, or other hardware to attach top frame 500 to a vehicle rack cross bar. Mounting holes 510 may be threaded or unthreaded. As shown, in many embodiments, a top frame 500 may comprise two risers 506 and mounting plates 508 to attach to two vehicle rack cross bars, preventing the apparatus from rotating in use. Mounting plates 508 may of any length, width, or thickness sufficient to support top frame 500 in use.

Referring now to FIGS. 6A-6C, illustrated are front, top, and end views of an embodiment of a simulated lower portion or bottom frame 600 of a door for supporting a fitness apparatus 400. In brief overview, a bottom frame 600 may comprise a horizontal beam 602. Beam 602 may be attached to or comprise one or more attachment points 604a-604d. Beam 602 may also comprise or be attached to a vehicle tire receiving channel 606 for anchoring bottom plate 600 to the ground by positioning a vehicle tire on top of receiving channel 606. In some embodiments, receiving channel 606 may comprise a stop 608 to prevent the vehicle from driving beyond a predetermined position over the channel 606, and may comprise a backstop 610 to prevent the channel from sliding out from under the vehicle tire.

Still referring to FIGS. 6A-6C and in more detail, a bottom frame 600 may comprise a horizontal beam 602. Beam 602 may be wood, metal, plastic, or any other stiff material or combination of materials. In some embodiments, beam 602 may have a length equivalent to a standard household doorframe, such as two and a half or three feet, while in other embodiments, beam 602 may be any other size, including larger or smaller. In some embodiments, beam 602 may be the same thickness as a standard door, such as two inches, or may be thinner. In embodiments in which beam 602 is thinner than a standard door, bottom frame 600 may include a plurality of attachment points 604a-604d or plates fixed to beam 602 to add thickness and support door frame supports 402 of fitness equipment 400. In other embodiments, beam 602 may be thicker than a standard door, and attachment points 604a-604d may comprise notches or indentations in beam 602, allowing attachment of equipment while preventing the equipment from sliding laterally across beam 602. In some embodiments, as shown, attachment points 604a-604d may extend above beam 602, providing a greater surface area for contact with door frame supports 402 of fitness equipment, while reducing the weight of bottom frame 600. Attachment points 604a-604d may comprise pairs for a “narrow” setting and “wide” setting for use of a door frame attached fitness apparatus. For example, outer attachment points may be used for a wide setting, while inner attachment points may be used for a narrow setting.

Beam 602 may be attached to a receiving channel 606, which may comprise a flat plate for a vehicle tire to be driven onto to anchor the bottom frame 600 to the ground. In some embodiments, channel 606 may be wider than the width of a vehicle tire to allow a user to drive the vehicle onto the plate easily. In some embodiments, channel 606 may be bounded on one or more sides by a vehicle stop 608 and/or backstop 610. Vehicle stop 608 may comprise a wall, plate, or beam positioned at one end of receiving channel 606 to stop a vehicle tire from rolling off of channel 606. In some embodiments, vehicle stop 608 may be metal, wood, plastic, or any combination of materials, and may comprise an upwardly-bent portion of a plate of receiving channel 606. In many embodiments, vehicle stop 608 may not be required to provide structural support to any other component, and so may be relatively thin. In other embodiments, vehicle stop 608 may act as a brace for a backstop 610, and may be thicker.

Backstop 610 may comprise a beam, plate, or wall to prevent receiving channel 606 from sliding laterally from under a vehicle tire. In use, bottom frame 600 may be pulled outward by a user as various exercises are performed. On some surfaces, such as grass, gravel, sand, or dirt, there is a possibility that channel 606 could be pulled from under the vehicle, releasing suddenly and causing injury. Backstop 610 prevents this motion by acting as a stop against the vehicle tire.

Referring now to FIG. 7, illustrated is a front view of an embodiment of the top frame 500 of FIGS. 5A-5D and bottom frame 600 of FIGS. 6A-6C installed on an embodiment of a vehicle rack, supporting an embodiment of a fitness apparatus 400. As shown, when positioned on a vehicle rack and beneath a vehicle tire, beams 502 and 602 may be parallel and separated by the height of a door, providing attachment points 504 and 604 at appropriate distances for use of fitness apparatus 400.

Referring briefly to FIG. 8, illustrated is a perspective view of an embodiment of a mobile fitness system employing multiple equipment stations. As shown, extension bars and frames may be attached to the vehicle rack at multiple places, allowing for groups of as many as fifteen, twenty, or more users to simultaneously train in circuit fashion, rotating from one station to the next around the vehicle. The equipment may be quickly broken down for travel and storage, allowing for fitness training anywhere.

In addition to free-hanging, cable systems, and other exercise apparatuses, the mobile fitness system may further comprise a Fibonacci Wheel, or semi-circular fitness apparatus to allow users to perform push-ups, inverted pull-ups, or other exercises at a variety of predetermined angles. Referring first to FIG. 9A, illustrated is a side view of use of an embodiment of a Fibonacci Wheel or semi-circular fitness apparatus 900. A Fibonacci Wheel 900 may comprise a spiral cross-section along circular arcs from opposite squares of a Fibonacci tiling. The wheel may comprise multiple handholds or bars at predetermined positions. By grasping these bars, a user 902 may perform exercises at a variety of angles. For example, a user may perform a push-up on the ground with his or her arms at an approximately 90 degree angle from his or her body. By grasping a bar elevated off the ground, the user may perform a push-up at a reduced angle of 60 degrees, 45 degrees, or any other angle. This may be used to target different muscle groups, as well as reducing the difficulty. Alternately, in some embodiments, the user may place their ankles over a bar elevated from the ground and perform push-ups with their hands on the ground. Arm-body angles greater than 90 may be achieved in this fashion, increasing the difficulty. Additionally, a user may perform a climbing exercise, climbing up and down along the wheel with alternating hands. Users may also perform pull-ups and tricep dips or other exercises.

Referring now to FIG. 9B, illustrated is a perspective view of an embodiment of a Fibonacci Wheel or semi-circular fitness apparatus 900. Although shown in a spiral, in many embodiments, the fitness apparatus may have a circular or semi-circular cross section or profile. Wheel 900 may have a large radius in many embodiments, such that a user hanging from the top of the wheel with arms outstretched may have their feet off the ground.

Wheel 900 may comprise two or more rims 902a-902b, referred to generally as rims 902. In some embodiments, rims 902 may be steel, iron, wood, plastic, or any other stiff material capable of supporting the weight of one or more persons. Rims 902 may be solid, hollow, or a combination of solid and hollow. In some embodiments, rims 902 may comprise tubular steel elements, reducing weight while maintaining strength. In many embodiments, rims 902 may be positioned wider than shoulder height apart. In some embodiments, an upper terminal end of each rim 902 may include a plate, c-shaped portion, u-shaped portion, or similar feature for mounting to a horizontal bar such as an A-frame extension 300. In some embodiments, the mount may include one or more mounting holes to securely fasten rims 902 to the bar via bolts, pins, or clamps.

In some embodiments, rims 902 may be joined by one or more cross bars 904. Cross bars 904 may provide structural strength and positioning to keep rims 902 parallel, as well as providing grips for hands or bars for ankles during push-ups or other exercises. Cross bars 904 may be wood, metal, plastic, or any other material, and may be welded, bolted, or otherwise fastened to rims 902. In some embodiments, cross bars 904 may also extend outward from rims 902 (not illustrated). In some embodiments, cross bars 904 may be round in cross section, while in other embodiments, cross bars 904 may be square, octagonal, or any other shape. In many embodiments, cross bars 904 may have a diameter sized for grip by a user's hands. Although shown as straight bars, in many embodiments, a cross bar 904 may have a bent profile or be fixed at a non-perpendicular angle to rims 902, allowing for push-ups and other exercises with a more neutral, less supinated position of the user's wrists and forearms, reducing the risk of stress injury.

In some embodiments, rims 902 may also be attached to one or more grips 906. In many embodiments, grips 906 may be similar in material, cross section, and diameter to cross bars 904, but may not extend fully between rims 902. In many embodiments, as shown, grips 906 may also extend outward from rims 902, allowing for grips wider than the distance between rims 902. Due to the open space between each pair of grips 906 attached to rim 902a-902b, a user may perform push-ups or other exercises at extreme extensions, sometimes referred to as guillotine push-ups, in which the user lowers his body past the plane between the hands. This may place extra stress on the shoulder muscles, for example. As discussed above in connection with cross bar 904, in various embodiments, grips 906 may be straight, bent, perpendicular to rims 902, or non-perpendicular to rims 902.

Referring briefly to FIG. 9C, illustrated is a perspective view of an embodiment of a mobile fitness system comprising an A-frame extension 300 and a Fibonacci Wheel 900. As shown, the wheel 900 may be installed connected to a horizontal beam 302 of extension 300, providing capability for users to perform a variety of exercises at predetermined angles at any time, anywhere.

While various embodiments of the methods and systems have been described, these embodiments are exemplary and in no way limit the scope of the described methods or systems. Those having skill in the relevant art can effect changes to form and details of the described methods and systems without departing from the broadest scope of the described methods and systems. Thus, the scope of the methods and systems described herein should not be limited by any of the exemplary embodiments and should be defined in accordance with the accompanying claims and their equivalents.

Claims

1. A mobile fitness system for attachment to a vehicle accessory rack, comprising:

an extension rail for extending from a vehicle accessory rack parallel to the ground to support a user performing free hanging fitness exercises;

at least one vertical riser, attached ventrally to the extension rail, each vertical riser having a first predetermined height; and

at least one foot attached to and extending laterally from each corresponding riser, each said foot comprising a hole for attachment of the mobile fitness system to the vehicle accessory rack via a fastener.

2. The mobile fitness system of claim 1, wherein a first portion of the extension rail has a circular cross section.

3. The mobile fitness system of claim 1, wherein the extension rail comprises a hole at a predetermined position for accepting a hook attached to a fitness accessory.

4. The mobile fitness system of claim 3, wherein the hole within the extension rail is not located at a point along the extension rail between a first vertical riser and a second vertical riser.

5. The mobile fitness system of claim 1, wherein the first predetermined height of each vertical riser is selected to position the extension rail at a second predetermined height from the ground when attached to the vehicle accessory rack.

6. The mobile fitness system of claim 1, wherein each at least one foot further comprises a bolt for attachment via the hole to the vehicle accessory rack.

7. The mobile fitness system of claim 1, further comprising a first vertical riser attached to the extension rail at a first position, a second vertical riser attached to the extension rail at a second position separated from the first position by a first predetermined length, and wherein the extension rail is longer than the first predetermined length.

8. A mobile fitness system for attachment to a vehicle accessory rack, comprising:

an extension rail for extending from a vehicle accessory rack parallel to the ground to support a user performing free hanging fitness exercises;

at least one leg attached to a terminal end of the extension rail and extending laterally from the extension rail; and

a mount for attachment to the vehicle accessory rack, attached to the extension rail by a first joint, and comprising: an upright including the first joint, and a mounting plate attached to said upright, the mounting plate comprising at least one hole for attachment of the mobile fitness system to the vehicle accessory rack via a fastener.

9. The mobile fitness system of claim 8, comprising at least two legs extending laterally at symmetrical angles from the extension rail to form an A-frame.

10. The mobile fitness system of claim 8, further comprising at least one extension leg removably attached to each leg.

11. The mobile fitness system of claim 8, further comprising at least one foot attached to a corresponding leg, each foot comprising a plate fixed to each leg or a corresponding extension leg at an angle equal to an angle between said leg or extension leg and a line perpendicular to the ground.

12. The mobile fitness system of claim 8, wherein the first joint allows for one rotational degree of freedom at most.

13. The mobile fitness system of claim 8, wherein the first joint allows for one translational degree of freedom at most.

14. The mobile fitness system of claim 8, further comprising a semi-circular fitness apparatus attached to the extension rail, the semi-circular fitness apparatus comprising at least two semi-circular rims, joined by a plurality of cross bars.

15. The mobile fitness system of claim 14, wherein the semi-circular fitness apparatus further comprises at least one pair of grips attached at corresponding positions to each rim and extending laterally from said rim, each grip having a circular cross section and diameter for grasping by a user's hand.

16. The mobile fitness system of claim 14, wherein each rim of the semi-circular fitness apparatus has a spiral profile.

17. The mobile fitness system of claim 14, wherein the semi-circular fitness apparatus comprises a mounting plate attached to an upper terminal end of each rim for hooking over the extension rail.

18. A mobile fitness system for attachment to a vehicle accessory rack and for supporting a fitness apparatus configured for attachment to a door, comprising:

an upper frame portion comprising: a first horizontal beam, at least one vertical riser attached to the horizontal beam, and at least one mounting plate attached to a corresponding vertical riser and extending orthogonally to the horizontal beam for attachment of the upper frame portion to a vehicle accessory rack via a fastener; and

a lower frame portion comprising: a second horizontal beam, and a tire receiving channel attached to the second horizontal beam for positioning beneath a vehicle tire, the channel comprising: a plate attached to the second horizontal beam at a first edge; and a backstop extending vertically from and attached to the plate at a second edge opposite the first edge.

19. The mobile fitness system of claim 18, wherein each of the first horizontal beam and second horizontal beam have a length and thickness equal to a corresponding length and thickness of a standard door.

20. The mobile fitness system of claim 18, wherein the tire receiving channel further comprises a vehicle stop extending vertically from a third edge of the plate orthogonal to the first edge and second edge.