This application relates to exercise apparatus.
More particularly, the application relates to exercise apparatus which utilizes the ground as a component of the apparatus and, in particular, utilizes the ground both as fulcrum and to generate a resistance force.
Those of skill in the art have long focused on providing improved exercise apparatus.
It would be highly desirable to provide improved exercise apparatus.
Accordingly, it is a principal objective of the invention to provide improved exercise apparatus.
This, and other and further objects of the invention will be apparent to those skilled in the art from the following detailed description thereof, taken in conjunction with the drawings, in which:
FIG. 1 is a perspective view illustrating exercise apparatus constructed in accordance with the invention;
FIG. 2 is a side elevation view illustrating the mode of operation of the exercise apparatus of FIG. 1;
FIG. 3 is a side elevation view further illustrating the mode of operation of the exercise apparatus of FIG. 1;
FIG. 4 is a side elevation view further illustrating the mode of operation of the exercise apparatus of FIG. 1:
FIG. 5 is a side elevation view illustrating the mode of operation of a tracking system which can be utilized in the invention;
FIG. 6 is an end view of a portion of the tracking system further illustrating a rail and tracking foot utilized in the tracking system;
FIG. 7 is a perspective view illustrating another embodiment of the exercise apparatus of the invention;
FIG. 8 is a perspective view in ghost outline of a heavy equipment tire which can be utilized in the practice of the invention.
Briefly, in accordance with the invention, I provide improved exercise apparatus. The apparatus comprises a tire having an outer diameter; and, support apparatus contacting and upwardly depending from the ground. The support apparatus comprises a generally horizontally oriented base contacting the ground, and at least a pair of support surfaces each laying in a common inclined plane, connected to and upwardly extending from the base, and spaced apart a selected distance greater than the diameter of said tire. The support apparatus and the ground have a support apparatus-ground interface. The exercise apparatus also comprises an axle extending through the tire and including first and second ends each located exterior of an opposite side of the tire. The first and second ends are spaced apart a distance greater than the diameter of the tire. The exercise apparatus also includes a pair of wheels each rotatably mounted on a different one of the first and second ends. The exercise apparatus is shaped and dimensioned such that the tire is movable between at least three operative positions, a first operative position in which the tire is generally horizontally oriented with respect to the ground; a second operative position in which a first side of said tire is upwardly displaced from the first operative position as a lever arm to pivot a second opposing side of the tire about a fulcrum comprising the ground, in which the wheels are spaced apart from the base and the support surfaces, and in which the tire is canted in a first direction; and, a third operative position in which the tire is canted in a second direction opposite the first direction, the second opposing side of the tire frictionally contacts the ground, each of the wheels contacts a different one of the support surfaces, and the force of gravity acting on the tire generates a horizontal vector component having a magnitude sufficient to overcome the frictional contact between said second opposing side and the ground, sufficient for the second opposing side to slide over the ground, and sufficient for the wheels to roll down the support surfaces. The support apparatus-ground interface secures the base in fixed position on the ground while the second opposing side slides over the ground.
Turning now to the drawings, in which like reference characters refer to corresponding elements throughout the several views and which are provided by way of example and not limitation of the invention, the exercise apparatus of FIG. 1 is generally indicated by reference character 10 and includes a tire apparatus 30 including tire 31 having an outer diameter and an inner opening 35 formed therethrough. The inner opening ordinarily includes, in conventional fashion, a bead (not depicted), and is shaped and dimensioned to be mounted on a rim (not shown). A tire 31 mounted on a rim can be utilized in the practice of the invention, but the use of a rim is not presently preferred.
Support apparatus contacts and upwardly depends from the ground 40 (FIG. 2) and includes a generally horizontally oriented base contacting the ground, and at least a pair of support surfaces 16, 18 each laying in a common inclined plane, connected to and upwardly extending from the base, and spaced apart a selected distance greater than the diameter of the tire. The base includes elongate spaced apart horizontally oriented ground contacting members 13 and 14. Members 13 and 14 and the ground form a support apparatus-ground interface.
Tire apparatus 30 includes axle 32 extending through tire 31. Axle 32 includes first and second ends each located exterior of an opposite side of the tire. The first and second ends are spaced apart a distance greater than the diameter of the tire 31. A pair of wheels 33, 34 are each rotatably mounted on a different one of the first and second ends of axle 32.
The exercise apparatus of FIG. 1 is shaped and dimensioned such that tire 31 and apparatus 30 are movable between at least three operative positions, namely: (a) a first operative position in which tire 31 is generally horizontally oriented with respect to the ground (illustrated in FIGS. 1 and 4); (b) a second operative position in which a first side of tire 31 is upwardly displaced from the first operative position as a lever arm to pivot a second opposing side of tire 31 about a fulcrum comprising the ground 40, in which wheels 33, 34 are spaced apart from base 13, 14 and support surfaces 16, 18, and in which tire 31 is canted in a first direction (illustrated in FIG. 2); and, a third operative position in which tire 31 is canted in a second direction opposite the first direction, in which the second opposing side of tire 31 frictionally contacts the ground, in which each of wheels 33, 34 contacts a different one of support surfaces 16, 18, and, in which the force of gravity G acts on tire 31 to generate a vertical vector component Y and a horizontal vector component, X (illustrated in FIG. 3). The horizontal vector component X has a magnitude sufficient to overcome the frictional contact between the second opposing side 36 and the ground 40, sufficient for the second opposing side 36 to slide over the ground 40, and sufficient for wheels 33 and 34 to roll down the support surface. The support apparatus-ground interface secures base 13,14 in fixed position on the ground 40 while second opposing side 36 slides over the ground 40. The magnitude of vector component X preferably is sufficient to cause tire apparatus 30 to roll down surfaces 16, 18 and return to a starting position comparable to that illustrated in FIG. 1 or FIG. 4. In FIG. 1, tire 31 is resting on the ground. In FIG. 4, tire 31 is parallel to and spaced above the ground 40.
Surface 16 is formed on inclined ramp 15. Ramp 15 is connected to and extends upwardly from base member 13. Vertically oriented support leg 19 interconnects member 13 and ramp 15.
Surface 18 is formed on inclined ramp 17. Ramp 17 is connected to and extends upwardly from base member 14. Vertically oriented support leg 20 interconnects member 14 and ramp 17.
In FIG. 1, members 13 and 14 are spaced apart such that tire 31 contacts, as described above, the ground during operation of the apparatus. If members 13 and 14 are interconnected and, for sake of example, the base comprises one or more large pieces of plywood such that during operation of the apparatus of the invention tire 31 contacts the plywood and does not directly contact the ground, then such plywood is, for the purpose of the present invention, held to comprise the “ground”. Similarly, by way of example and not limitation, the “ground” can comprise the grassy or artificial turf found on a baseball or football field, can comprise a floor, can comprises a concrete driveway, etc.
The gradient, or slope, of surfaces 16 and 18 can vary as desired, but in one embodiment of the invention is preferably sufficient for the force of gravity, when tire apparatus 30 is in the orientation illustrated in FIG. 3, to produce a vector component X sufficient to cause apparatus 30 to overcome frictional forces between side 36 and ground 40, and, to roll down surfaces 16 and 18 to a position comparable to that illustrated in FIG. 1 or FIG. 4.
The size of tire 31 can vary as desired, but currently tire 31 has a diameter in the range of three to seven feet. The exercise apparatus of the invention is intended to be usable by a single individual who lifts up a side 37 and pushes the tire up to and through the orientation of FIG. 2 to the position shown in FIG. 3. Once the tire reaches the position illustrated in FIG. 3 and wheels 33 and 34 contact surfaces 18 and 16, respectively, then the force of gravity causes apparatus 30 to “automatically” roll back down surfaces 16 and 18 to a position comparable to that shown in FIG. 1. It is certainly possible that two or more individuals could lift a tire 31 along a side 37, but when a single individual (or even two or more individuals) is lifting a tire 31, at some point the size of a tire can become impractically large. While heavy equipment tires 31A of the general type illustrated in FIG. 8 are presently preferred in the practice of the invention, and while as noted the size of a tire 31 can vary as desired, it is believed that practically speaking a tire with a diameter larger than seven feet would be difficult to utilize. Similarly, if the diameter of tire 31 is too small, the benefits for an adult begin to diminish. While it is certainly possible that a tire having a diameter of less than three feet could be utilized, possibly for apparatus constructed for a child, such is not presently preferred in the practice of the invention.
As shown in FIG. 7, axle 32 can be extended 68 so that weights can be mounted on extension 68. As would be appreciated by those of skill in the art, provisions can be made to mount weights at any desired point on tire 31 or other parts of the apparatus of FIG. 1 in order to increase the amount of resistance that has to be overcome to move tire 31 from the position illustrated in FIG. 1 (or FIG. 4) to the position shown in FIG. 3. Similarly, one end of a tensioned elastic band 69 can be secured to axle 32 and the other to a pin 70 fixedly secured to member 15. Band 69 helps move tire 31 from the position shown in FIG. 1 to the position shown in FIG. 3, and, consequently, reduces the amount of exertion required for an individual to move tire 31 from the position shown in FIG. 1 to the position shown in FIG. 3. As would be appreciated by those of skill in the art, provisions can be made to mount tensioned elastic bands (or tensioned springs or compressed springs which help to push up axle 32 or arms 50, etc.) at any desired points on the apparatus of FIG. 1 in order to reduce the amount of exertion required for an individual to move tire 31 from the position shown in FIG. 1 (or FIG. 4) to the position shown in FIG. 3.
In use, as would be appreciated by those of skill in the art, tire 31 must be pushed past vertical axis V (FIG. 3) so that gravity can produce a horizontal vector X of sufficient magnitude to overcome the frictional resistance between side 36 and ground 40 and cause apparatus 30 to roll down surfaces 16 and 18. In FIG. 2, tire 31 has not yet been pushed past axis V. In FIG. 3, tire 31 has been pushed past axis V. Consequently, it is critical the wheels 33, 34 do not contact surfaces 81, 16, respectively, until after tire 31 is pushed past axis V. Further, tire 31 must be pushed far enough past axis V and surfaces 16, 18 must be sufficiently canted for the force of gravity G to produce a vector X (FIG. 3) having a magnitude sufficient to overcome the frictional resistance between side 36 and ground 40 and to make tire 31 roll down surface 16, 18 to return to a desired starting position like the starting positions illustrated in FIGS. 1 and 4. In FIG. 2, tire 31 is, of course, canted in a direction different from and opposite the direction in which tire 31 is canted in FIG. 3.
In one preferred embodiment of the invention, a guidance apparatus is utilized. One such apparatus is illustrated in part in ghost outline in FIG. 1 and includes an elongate arm 50 and a U-shaped track 51. As is further depicted in FIG. 5, the upper end 56 of arm 50 includes an aperture 57 through which one end of axle 32 rotatably extends. End 56 is, as depicted in FIG. 1, positioned intermediate wheel 33 and one side of tire 31. A second arm and track 51A would also be utilized adjacent base member 13, and the upper end of such a second arm would be positioned intermediate wheel 34 and the other side of tire 31. The other end of axle 32 would rotatably extend through an aperture in the second arm comparable to aperture 56. The second arm would generally remain parallel to arm 50 during operation of the apparatus. The second track 51A would be parallel to track 51 and to members 13 and 14. Consequently, both arm-track combinations would function to maintain axle 32 normal to members 13 and 14 and to tracks 51, 51A during operation of the exercise apparatus of the invention.
In FIG. 5, tire 31, axle 32, and wheels 33, 34 are omitted for sake of clarity. Arm 50 is shown in a starting position comparable to where arm 50 would be when tire apparatus 30 is in the position illustrated in FIG. 1. When an individual picks up tire 31 at side 37 and lifts and pushes tire 31 to the position shown in FIG. 3, arm 50 moves sequentially through the positions illustrated in ghost outlines 50A, 50B, and 50C. When arm 50 is in the position illustrated by ghost outline 50C, tire 31 is in the position shown in FIG. 3. The lower end of arm 50 is pivotally attached 54 to a foot 53 which slides along the bottom 52 of the groove formed in U-shaped rail 51 (FIG. 6). After tire 31 reaches the position shown in FIG. 3, wheels 33 and 34 roll down surfaces 16 and 18 to return tire apparatus 30 to a position comparable to that shown in FIG. 1. When tire apparatus 30 rolls back down surfaces 16 and 18, arm 50 and foot 53 “retrace” their steps and move sequentially through positions indicated by ghost outlines 50B and 50A and back to the original starting position of arm 50 and foot 53 illustrated in FIGS. 1 and 5. If desired, foot 53 can be replaced by a wheel or some other construct which rolls or moves along the groove formed in rail 51. The shape and dimension and structure of guidance apparatus utilized to insure the wheels 33, 34 roll down (and not off) surfaces 18, 16, respectively, can be varied as desired.
In one embodiment of the invention, tire apparatus 30 does not have the starting position illustrated in FIG. 1. In FIG. 1, tire 31 lays on and contacts the ground 40. In contrast, in FIG. 4 tire 31 has a starting position in which it is oriented parallel to and spaced apart from the ground. In this embodiment of the invention, a stop can be inserted in each rail 51, 51A so that foot 53 can only move back, for example, to the position occupied by foot 53 when arm 50 is in the position illustrated by ghost outline 50A. This prevents tire apparatus 30 from returning to the original position depicted in FIG. 1, and only permits tire apparatus to return to a position in which tire 31 can be oriented parallel to and spaced apart from the ground in the manner illustrated in FIG. 4.
Another embodiment of the invention is illustrated in FIG. 7 and includes the apparatus of FIG. 1 in conjunction with a mirror image apparatus comprising tire apparatus 30A, tire 31A, ramps 15A and 17A, inclined surfaces 16A and 18A, axle 32A, and wheels 33A and 34A. The mirror image apparatus would include a guidance apparatus comparable to that described above for tire apparatus 30. In order to save space, tire apparatus 30 and mirror image tire apparatus 30A can, if desired, be moved closer together and use the same guide rails 51, 51A. The limitation in such an arrangement is that tire apparatus 30 must be used at a different time than tire apparatus 30A because otherwise (if tires 31 and 31A were being lifted simultaneously), as would be appreciated by those of skill in the art, the feet 53 on the arms 50 of tire apparatus 30 would slide along rails 51 and 51A into and contact the feet on the arms 50 of tire apparatus 30A. If tire apparatus 30 is instead used while tire 31A remains in the position shown in FIG. 7, then the feet 53 on the arms 50 of tire apparatus 30 can, when tire 31 is in the position shown in FIG. 3, be in positions along rails 51 and 51A which are close to but do not contact the feet 53 of the arms 50 on tire apparatus 30A. After, however, tire 31 has moved back to the position illustrated in FIG. 1, the feet on the arms 50 of tire apparatus 30 have withdrawn sufficiently along rails 51 and 51A for the feet on arms 50 of tire apparatus 30A to move—when tire 31A is lifted—freely along rails 51 and 51A toward apparatus 30 without contacting the feet 53 of the arms 50 on tire apparatus 30.
Having describe my invention in such terms for those of skill in the art to make and use the invention,
Patent Grant
10022580
