Patent Application
20080312009
The invention relates generally to sports-related training equipment and devices, particularly, training devices that simulate an opponent's mass.
It is generally accepted that the better prepared a sports team is, the more successful they will be at the game. While many factors affect a team's preparedness, the training equipment available to a team has traditionally been considered critical. Consequently, training equipment has continued to evolve, as players and teams attempt to gain a competitive advantage over opponents. This evolution has resulted in a closer approximation of “game-like” conditions for the athletes during practices. Simulating game-like conditions has allowed the players to finely tune their skills in ways that directly translate into increased “on-field” performance. In sports where the blocking of another player is permitted, such as in football, the training of an athlete in how to physically block an opponent is highly desirable.
Football has traditionally relied on a variety of training equipment for simulating game-like conditions. In football, it is a common belief that to control a football game, a team must control the line of scrimmage. In accordance with this premise, if the team on offense controls the line of scrimmage, i.e., effectively blocks, its quarterback is given ample time to throw the football to a receiver or, alternatively, a running-back is given ample room to maneuver and gain yardage before being tackled by opponents. On defense, controlling the line of scrimmage results in pressure being applied to the quarterback or a running-back before significant yardage, if any at all, can be gained by the offense.
To develop strength and simulate game-like blocking conditions, a number of weight sleds are commercially available. Examples of such devices include the Sled Dog product, commercially available from MF Athletic Company, Cranston R.I.; the Sprinter's Sled commercially available from SpeedCity, Jackson Miss.; and the Speed Sled, Power Sled and Handle Power Sled, commercially available Power Systems, Knoxville, Tenn. These devices typically include a pair of separate runners attached to a frame or platform that is capable of supporting weight. The device is then weighted and either pulled or pushed to develop strength in handling the resistance presented by the weighted sled. In a blocking simulation exercises the sled is manually pushed to simulate the weight of an opponent. It is common for an opponent, initially in a crouched position, to rise up vertically from the crouch position while simultaneously providing forward momentum which must be resisted. Accordingly, in order to realistically simulate the weight of an opponent at the line of scrimmage, the surface against which the trainee's force is applied should be neither too low or too high relative to the ground, otherwise the combined weight of the sled and the resistance between the sled and the ground will not accurately simulate an opponent's resistance to the trainee's thrust. Some manufacturers have attempted to attach a removable handle that extends obliquely from the sled. Unfortunately, the length of the handle causes the force application surface to be displaced too far from the center of gravity of the sled, thereby resulting in a simulation of an opponent's resistance that is more like pushing a heavy lawn mower rather than throwing a block. In addition, over exertion of force by a trainee to an under weighted sled having separate runners may result in one or both runner ends digging into the ground and either presenting unrealistic resistance as well as possibly tipping the sled. As such, many of the weight sled products commercially available do not accurately mimic the momentum and resistance presented by an opposing player during the process of throwing a block.
Accordingly, a need exists for a training device that provides a trainee with a blocking target having a resistance application surface at the proper vertical height relative to the ground.
Another need exists for a training device that provides a trainee with a blocking target having a resistance application surface that may be applied at multiple continuous vertical heights relative to the ground.
Yet another need exists for a training device that provides a trainee with a blocking target having a resistance application surface that is close to the center of gravity of the weight carried by the device regardless of the vertical height, relative to the ground, at which the trainee applies force.
Still a further need exists for a training device that does not have exposed runner ends.
A weight sled useful for strength training and simulating the resistance of an opponent during a blocking event comprises a pair of nonlinear runners of tubular construction arranged in parallel relative to a hypothetical center axis. A first, weight bearing member extends between the two runners at near the mid-sections thereof. A second member also of tubular construction extends between first ends of the runners and is joined thereto so as to form a continuous U-shaped member with the two runners. A third member also of tubular construction extends between second ends of the runners and is joined thereto. The third member is displaced a distance above the plane of the weight bearing member and provides a force application surface not near the ground and at the opposite end of the sled opposite that where the runners are joined in a contiguous manner. An optional extension member may be removably secured to either the third member or near the second ends of the runners so as to provide additional force application surfaces not near the ground and at the end of the sled opposite that where the runners are joined. In this manner, the weight sled disclosed herein affords a trainee multiple force application surface near the center of gravity of the sled and at differing vertical heights enabling a more realistic simulation of the resistance presented during a blocking event. In addition, the runners of the weighted sled disclosed will not dig into the ground even during over exertion of force by a trainee to an under weighted sled.
According to one aspect of the invention, a weight sled apparatus useful for strength training and simulating the resistance of an opponent during a blocking event comprises: (A) a pair of nonlinear runners of tubular construction arranged in parallel relative to a center axis and a plane; (B) weight bearing member affixed to and extending between the pair of nonlinear runners near mid-sections thereof; (C) a first crossbar of tubular construction extending between first ends of the runners and joined thereto so as to form a continuous tubular U-shaped member with the runners; (D) a second crossbar of tubular construction extending between said runners proximate second ends thereof and joined thereto so as to present a rearward facing surface against which force may applied; and (E) an attachment mechanism shaped to receive in a complementary mating manner a handle bar device. In one embodiment, a handle bar of tubular construction is joinable in a complementary mating manner to the attachment mechanism of the weight sled apparatus. The handlebar present a rearward facing surface against which force may applied in a range form 8 inches to 40 inches above the plane of the runners. In another embodiment, the attachment mechanism comprises a pair of posts sized to be received within the tubular ends of the handlebar, the pair of posts are disposed proximate the second ends of the runners or all in the second crossbar.
According to a second aspect of the invention, weight sled apparatus useful for strength training and simulating the resistance of an opponent during a blocking event comprises: (A) a continuous tubular U-shaped member having a pair of legs which serve as runners, said legs arranged in parallel relative to a center axis and a plane; (B) a weight bearing member affixed to and extending between the pair of nonlinear runners near mid-sections thereof and adapted to removable mount weights; and (C) a crossbar of tubular construction extending between said runners proximate ends thereof and joined thereto so as to present a rearward facing surface disposed at least 12 inches above the plane of the runners against which force may applied.
According to a third aspect of the invention, a weight sled apparatus useful for strength training and simulating the resistance of an opponent during a blocking event comprises: (A) a continuous tubular U-shaped member having a pair of legs which serve as runners, said legs arranged in parallel relative to a center axis and a plane; (B) a weight bearing member affixed to and extending between the pair of nonlinear runners near mid-sections thereof and adapted to removable mount weights; and (C) a handlebar of tubular construction extending between said runners proximate ends thereof and joined thereto so as to present a rearward facing surface against which force may applied in a range form 8 inches to 40 inches above the plane of the runners and normal thereto.
The above and further advantages of the invention may be better understood by referring to the following description in conjunction with the accompanying drawings in which:
The weight sled apparatus according to various illustrated embodiments disclosed herein enables a trainee to develop power at the height of the player coming out of his stance. The elevated handlebars allow a trainee to drive the sled in a posture that realistically simulates game conditions, thereby helping the trainee to develop strength and power in the knees, ankles and hips. The sled can be driven from either the lower tandem bar at the bear crawl level or from a higher level of a two-point stance and takeoffs. A weight sled embodying various aspects of the sled apparatus 100 described herein is the King Crab Sled, commercially available from Marty Gilman, Inc., Gilman, Conn.
The inventive weight sled apparatus, including an illustrative embodiment and various alternative embodiments are described hereinafter in greater detail with reference to the
The U-shaped chassis 102 further comprises runners 104 and 106 and head crossbar 108. Each of runners 104 and 106 and head crossbar 108 are formed of rigid material, such as 2″ aluminum pipe having a 0.25 wall thickness, and a have a substantially tubular construction. As illustrated, each of runners 104 and 106 have a substantially straight section and a section that is bent at an upward angle relative to the straight section. As a result, from a plan or side view, runners 104 and 106 appear to have a nonlinear profile. As illustrated in
Weight crossbar 112 may be implemented with a substantially flat rectangular plate also formed of a rigid material such as aluminum or steel and extends between runners 104 and 106 approximately adjacent the respective bent sections thereof, as illustrated. Weight crossbar 112 may be mechanically joined by welding or other techniques known in the arts to chassis 102 so as to form a unitary body therewith. The substantially flat surface presented by crossbar 112 provides an area on which to removably mount weights. Weight crossbar 112 is shown in phantom in
Rear crossbar 110 extends between runners 104 and 106 proximate the respective straight sections thereof and may be implemented with aluminum tubing similar to runners 104 and 106. Rear crossbar 110 may also be mechanically joined by welding or other techniques to chassis 102 so as to form a unitary body therewith. Rear crossbar 110 presents a rearward facing surface against which a trainee may apply force during a training exercise. The height of rear crossbar 110 relative to the ground or other surface on which sled 100 rests is chosen to allow the sled to be driven at the bear crawl level, approximately 8 to 12 inches off the ground.
A pair of front attachment mechanisms 115, implemented with eyelets welded to chassis 102 in the illustrative embodiments, are disposed at the corners of chassis 102 to facilitate attachment of straps, ropes, cords, chains, etc., to allow the trainee to also drag the sled 100 as well as push the same.
As illustrated in
Handlebar 116 presents a rearward facing surface against which a trainee may apply force during a training exercise. The height of handlebar 116 relative to the ground or other surface on which sled 100 rests is chosen to allow the sled to be driven from a range of levels from a lower bear crawl to a higher two-point stance and takeoffs. In one embodiment, handlebar 116 may have a height of approximately 20 to 40 inches from the plane on which runners 104 and 106. As such, handlebar 116 allows a trainee to drive the sled in a range of postures that realistically simulate the height of an opponent player coming out of a stance.
In an alternative embodiment all component parts of weight sled 100, including handlebar 116, may also be mechanically joined by welding or other techniques to form a completely unitary bodied apparatus. In such alternative embodiment, the rear crossbar 110 may be eliminated.
In another alternative embodiment, grip bar 120 may be vertically lengthened and have its legs attached directly to rear crossbar 110. In such alternative embodiment, posts 122 are affixed to and project either upwardly or rearwardly from attachment crossbar 118 and are shaped and sized to receive the open hollow ends of the legs of grip bar 120 in a complementary mating matter.
In another alternative embodiment, attachment crossbar 118 of handlebar 116 may be attached directly to chassis 102 proximate posts 122A-B or rear crossbar 110. In such embodiment, either or of both posts 122A-B and rear crossbar 110 may be eliminated.
In yet another alternative embodiment, chassis 102 may have attached thereto various hooks or handles that allow for the temporary attachment of straps, ropes or other devices so that the weight sled 100 may be pulled by a trainee during various strength conditioning exercises.
In yet another alternative embodiment, all or portion of the weight sled 100 may be painted or powder coated for protection against the elements.
In still other alternative embodiments, any of the embodiments of the weight sled 100 described herein may be sold with or without handlebar 116 and/or with or without weights 130, or an any of removably attachable device 132, such as harnesses, straps or ropes, etc., shown in phantom in
It will be obvious to those reasonably skilled in the arts that the weight sled described herein, do, in part, to the configuration of the force application surfaces over and their location relative to the sled chassis, affords a trainee multiple force application surfaces near the center of gravity of the sled and at differing vertical heights, As a result, the disclosed weights sleds more realistically simulate an opponent's resistance presented to the trainee's thrust during a blocking event.
Having described herein illustrative embodiments of the present invention, persons of ordinary skill in the art will appreciate various other features and advantages of the invention apart from those specifically described above. It should therefore be understood that the foregoing is only illustrative of the principles of the invention, and that various modifications and additions can be made by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, the appended claims shall not by the particular features which have been shown and described, but shall be construed also to cover any obvious modifications and equivalents thereof
